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For the problem of high water temperature, it is generally very common in summer, but in winter, this situation sometimes occurs. If this problem occurs, the small excavator is faulty. So what should I do for this kind of problem? Solve it?  First of all, let's analyze the reasons for the failure of small excavators 1. When the temperature is too high and the air conditioner is turned on, the idling speed is unstable and the rotation speed fluctuates too much, the acceleration is weak, and the engine has abnormal noise. When the small excavator is repaired, check the temperature difference between the upper and lower water pipes of the water tank. If the temperature difference is too large, it is necessary to check the opening of the thermostat and whether the water pump has a fault that the speed is lost. The temperature difference between the upper and lower water pipes of the water tank should not be too large. 2. After the hot car is turned off for ten minutes, it is not easy to start the car when it is started; sometimes it will automatically turn off when the hot car is running. Solution: After the car is warmed up, check the water return of the return pipe at the upper end of the antifreeze water tank. If the return water is not smooth or blocked, the water temperature will be too high. Warm reminder: Do not blindly disassemble and replace parts in the maintenance of small excavators. 3. When the car is cold, the cooling temperature of the air conditioner is very cold, and the cooling effect of the air conditioner is not obvious when the car is warm; and there is a large resonance buzzing sound in the air conditioning system. Due to the irregular addition and replacement of antifreeze during the maintenance of small excavators, the engine water channel and water tank will be blocked in advance, and the water temperature will be high. Antifreeze is replaced every two years, and original parts must be used when replacing and adding. 4. When the small excavator is idling, the engine water temperature gauge shows too high, the working time of the electronic fan high-speed gear is too long, the engine noise increases, and the fault is most obvious when the temperature is too high and the air conditioner is turned on. When the small excavator is repaired: Check whether there is too much dust between the condenser and the water tank, and thoroughly clean it with high-pressure air to ensure that the water tank and the condenser have good heat dissipation performance. Usually pay attention to wipe the dust between the condenser and the water tank. 5. When the hot car is idling, the air conditioner compressor clutch is frequently sucked and disconnected, or even disconnected, causing the hot car air conditioner not to cool. The high pressure at the high-pressure end of the air-conditioning system is too high; the air-conditioning refrigerant or air-conditioning refrigeration lubricating oil is overfilled; the self-adjusting function of the internal self-adjusting air-conditioning compressor fails, causing the high pressure to be too high; and the air-conditioning condenser Blockage, the above faults will increase the load of the engine, consume the heat dissipation performance of the cooling system, and lead to the occurrence of faults with excessive water temperature. Warm reminder: Too little or too much refrigerant in the air conditioner will reduce the cooling effect.

Everyone who drives a mini excavator knows that in addition to the maintenance of the machine, the daily operation cost accounts for most of the cost. It is burning oil. Every time you refuel the machine, will you faint and feel heartache? Because of the inevitable need for refueling, it is necessary to Oil (to some hard drives today) is working hard to provide you with fuel-saving tips for excavator operation. Think of yourself as an excavator before sharing, and you'll better understand why. 1. When loading, the excavator should be in a higher position, and the truck should be parked at the same height as the work surface. The reason is simple, a rock, is your knee as hard as your head when you lift it? How much "energy" will it save? Assuming the same height as in earlier years, you can trek 40% of the power. Cool! 2. When the bucket cylinder and connecting rod, the ejector cylinder and the ejector are all at 90°, each cylinder pushes the excavator with the maximum force. 3. When excavating natural ground, the bucket or loosening equipment should keep the ground angle at about 30°, and then retract the bucket stick. When the bucket stick is close to vertical, the bucket stick has the maximum force and can withstand larger load. These two key points are like bending your arms to carry things, or sticking to your arms straight, of course bent. 4. At the beginning of excavation, do not extend the bucket rod out of the maximum action plan, the best action plan is about 80%. 5. Bucket shaft excavation planning: the angle of the bucket shaft from the farthest 45° to the inside is 30°. Excavation depths vary slightly, but larger sticks and buckets should be operated within this plan, not at the end of the cylinder stroke. 6. During continuous excavation, place the chassis forward so that you can walk immediately after excavation. If you want to walk, please change it again, you will burn a lot of oil at the beginning and end. 7. When digging a trench, first dig the two ends of the trench, and then dig the center part. In this way, excavating in the center can save a lot of work and effort. 8. Put the engine in the economical gear. Select automatic idle to allow the engine to idle during excavation. 9, Minimize the radius of rotation. 10. The smaller the excavation depth, the better the excavation economy. Divided into upper, middle and lower three layers of excavation, assuming that the excavation is carried out in sequence from low to high, the first is the increase of the action plan, and then the increase of the power plan of the excavator decreases, which reduces the working power, which will cost a lot of money. of oil.

The grounding specific pressure of the running gear of the crawler transport vehicle can be adjusted by changing the grounding length of the crawler transport vehicle and the width of the crawler transport vehicle. Large crawler transport vehicle machinery. The application of the multi-track transport vehicle traveling device on large-scale mining equipment has the following advantages:  1. The multi-track transport vehicle traveling device can not only realize various walking movements required by mining equipment such as bucket wheel excavators in work, but also can stop at any time. 2. The support area can be easily adjusted by changing the number of crawler transport vehicles and the width, length and different combinations of the crawler transport vehicles according to the change of the equipment load, so as to adapt to the grounding specific pressure requirements that the soil can bear. 3. In the field construction, the walking device of the crawler transport vehicle has good mobility, and the requirements for the flatness and compactness of the site are low, and the adjustment of the machine position is relatively convenient. 4. It can overcome the ground slope of the mining area, and can complete normal operations on steps with a small slope. 5. It can realize the diversification of working conditions. For example, the bucket wheel excavator can work while walking, or it can be fixed at a certain working position to work according to the needs. 6. It is convenient to change the working site, and the whole machine can be easily transferred from one working face to another working face. 7. It is convenient to park, and the machine can be parked at any position of the workplace only by the friction between the crawler transport vehicle and the ground. 8. The bearing capacity is huge, and the load can be statically transmitted to the ground to avoid local overloading of machine parts and the ground. 9. The walking device of the crawler transport vehicle has good adaptability to the ground and can walk on relatively uneven ground that has been simply leveled. 10. It can easily realize the stepless speed change of the multi-track transport vehicle through electro-hydraulic control, and can realize constant speed control, instant reverse walking, etc., to ensure the frequent advance and retreat of the machine during operation. 11. It can adapt to various harsh climatic conditions and workplaces, and has good passability to various soils.

Relying on the advantages of small size, strong power, low fuel consumption and high flexibility, the mini excavator can perform construction operations such as digging fertilizer trenches and fruit tree pits in orchards. It is known as a good helper for orchard farmers to open and cultivate. power, but also save labor costs. At the same time, the multi-functional small excavator is also suitable for road greening and repairing, excavating cable trenches, filling pipelines, mining and mining, and operating in narrow and congested subway tunnels. It is suitable for coal washing plants, paper mills, sugar mills and other factories and mines Picking up and moving, suitable for farms such as pig farms, chicken farms and other farms to plough and ferment bedding operations. Top of the list, broad applicability. The miniature excavator is small in size and flexible in movement, which is very suitable for various pipe excavation, foundation construction, public utilities and house repairing operations in towns and villages. The compact size and special planning of the small excavator enable it to work in environments where large excavators cannot work. Second, versatility. The real benefit of a mini excavator is its versatility. Because of the relevant hydraulic power system, the small excavator can be equipped with many auxiliary tools, such as equipment rollers and plate compactors for landfill compaction of trenches; equipment breakers and hydraulic pliers are used for lightweight lifting operations; equipment rotary Drilling tools are used for drilling, fishing hooks are used for lifting heavy objects; equipment finger pliers are used for shoveling operations and so on. Third, the obvious job characteristics. The planning and application of the tail rotation radius of zero makes it unnecessary for the excavator operator to consider whether there are obstacles on the construction site to prevent the excavator from rolling when the small excavator operates in an environment with limited working space, so that the operator can focus more on the bucket. operation, which also avoids damage to buildings around the construction site as well as the excavator itself. The most important feature of the mini excavator suitable for working in confined areas is its special boom and stick design. The boom of the mini excavator is articulated with the body, which allows it to rock over a wide range. This plan enables the excavator to avoid obstacles when there are obstacles around it to operate without having to move the body frequently. At the same time, this also allows the excavator to facilitate excavation work around walls or fences. The rubber track of the mini excavator helps to reduce the damage to the phenomenon area in the narrow construction area and the journey of the excavator during construction. Fourth, it is convenient to transport and move the workplace. The small excavation facilitates handling between construction sites, without the need for large trailers or heavy trucks to transport, and small transport items can be carried. This not only facilitates transportation, but also reduces the transportation cost of the machine in a rugged way.

All family members:     According to the regulations of national statutory holidays and the actual situation of the company, the following arrangements will be made for the Spring Festival holiday in 2022:     1. There will be a 9-day holiday from January 29 (Saturday) to February 6 (Sunday); the production department will arrange by itself according to production needs;     2. Close the doors and windows, cut off the power switch or unplug the power socket the day before the holiday to ensure the safety of the office during the holiday. Pay attention to safety when going out during the holidays, do personal protection, and do not go to high-risk areas of the epidemic.     I wish everyone a happy Spring Festival! Shandong Hightop Machinery Group Co., Ltd. Administrative and Personnel Department January 25, 2022

On January 25, 2022, Shandong Hightop Group donated a batch of epidemic prevention materials to the Jining Red Cross Society.  Since the outbreak of the epidemic in Xi'an, and the end of the year is approaching, the pressure of prevention and control in all regions of the country has suddenly increased. As a company with a sense of social responsibility, Shandong Hightop Group donated a batch of protective masks, protective caps, goggles, disinfection spray guns, watering cans, disinfectant making machines, disinfection machines, sterilization lamps, sprayers and other anti-epidemic materials to the Jining Red Cross Society. , to help the epidemic prevention work in Jining area. The virus is ruthless, but there is love in the world. Shandong Hightop Group is based in Jining and faces the world. As a local private enterprise in Jining, it is duty-bound to do our part with love and strength. It is hoped that the charity of Hightop can add strength to the epidemic prevention in Jining City and escort the lives of the people.

Small-scale road rollers mainly refer to compaction machines of more than 3 tons and less than 10 tons. They are mainly divided into single-drum and double-drum rollers in structure. In recent years, rubber rollers of about 5 tons and hollow or solid bump rollers have appeared one after another. , The basic system solves the compaction problem of earthwork, gravel, sand and gravel mixture and oil surface. In view of the overall structure of the small road roller, no matter which field it is used for compaction, it basically plays the role of an auxiliary. Afterwards, when encountering green belts or sidewalk sections, a 3-ton double-drum road roller will be used in conjunction with the need to welt or close the side and compaction. Up to now, China has a large number of rural infrastructures that need to be upgraded. During the process of laying narrow roads or roads, it is inevitable to meet the needs of trench backfilling or water conservancy projects. The vibration of micro-small single drums under 10 tons can play its advantages. Backfilling and compaction can be performed for trenches with a width of 0.5 meters to 1.5 meters, but the thickness is not recommended to exceed 25 cm. Comprehensive consideration, no matter whether it is earthwork, gravel, sand, or oil surface, there is room for miniature road rollers, mainly walk-behind and ride-on. It is necessary to reasonably match construction machinery. For example, a mini crawler excavator of about 3 tons can be considered for the renovation of aqua toilets or ditching, and a single-drum or double-drum road roller can be considered for road compaction, and suitable machinery and equipment can be selected according to the budget. For the better, under the influence of the epidemic, it is not recommended for bosses to rush for quick success.

In all normal work of the small excavator, the temperature of the hydraulic press management system is not easy to exceed 50 °C. Once it exceeds 50 °C, the management system may become hot, and if its temperature is greater than or equal to 80 °C, It may cause the shortcomings of the hydraulic press management system of small excavators, and the hydraulic press management system is gradually hot . If the hydraulic press management system of the small excavator gradually shows a hot situation, it will cause the following series of problems: the working pressure of its work is reduced, the power is insufficient, the output power output is unstable, the operation and care failure, etc., and also It will endanger the continuous work of the hydraulic press management system and cause fatigue. Therefore, it is necessary to make a diversified analysis of the shortcomings of the small excavator hydraulic press management system, and carry out immediate precautions to ensure the stable operation of the small excavator hydraulic press management system. 1. The hot effect of the hydraulic press management system of the small excavator. In the process of the application of the small excavator, the hot hydraulic press management system of the small excavator is a disadvantage that causes repeated problems, and its analysis and solution process is still relatively speaking. Very disorganized. At the beginning of the defect, all functions work normally, but with the continuous rise of the temperature in the hydraulic press management system, some obvious abnormal problems will appear after one hour of continuous work, and endanger everything in the hydraulic press management system. Normal work, prompting its internal organizational system to work slowly, the scope of exploration is not good. Therefore, if the hot fault of the small excavator is not solved immediately, it will cause great harm: ① The viscosity of the hydraulic oil is reduced, which increases the possibility of leakage, and promotes the heating of the management system. vicious cycle; ② the air oxidation rate of the hydraulic oil is accelerated, and the small round holes of the components are blocked, which endangers the application of the hydraulic system; ③ the simple composition of the plastic hose becomes brittle, and the rubber products are ineffective; ④ aggravates the damage of the gasoline pump and the hydraulic solenoid valve damage, or even cause its failure, and cannot be used. ,Analysis of the hot and shortcoming of the hydraulic press management system of the small excavator, 2 factors that endanger the hot management system of the hydraulic press of the small excavator, 1) The system architecture is unscientific, the parts are not up to standard, the unscientific structure of the hydraulic press system and the improper operation may be Its parts are not good enough, such as the pipeline of gear oil is too thin when working, the capacity of the car fuel tank is too small, the pipeline of gear oil is not 90°, and the heat removal ability of the car fuel tank is poor, etc., all of which will cause digging. The heat of the hydraulic press management system. 2. The viscosity of the gear oil is low. The gear oil in the hydraulic press management system of the small excavator is viscous. When the temperature rises, the viscosity of the gear oil will decrease. At this time, it is easy to cause the leakage of the management system and endanger the small excavation. The working output power of the machine. Moreover, the gear oil has a smooth effect, and its viscosity is reduced, the protective film formed on the surface of the management system will become soft, the effect will be reduced, and the damage will be aggravated when the surface is exercised, and the application rate of components will also be reduced. will decrease. In addition, the unscientific application and repair of the hydraulic press management system will increase the possibility of the management system becoming hot. For example, the fact that the actual operation staff blindly follow the trend of oil supply will cause the oil level of the shock absorber tank to be too high, and the management system may become hot at this time; the unscientific repair of the hydraulic press management system will harm the work of the management system. There is a possibility of causing the management system to become hot. 3. The method to solve the hot problem of the hydraulic press management system of the small excavator, (1) to improve the setting of its heat pipe heat dissipation, the setting of the heat pipe heat dissipation in the small excavator is the guarantee for the normal operation of the small excavator hydraulic press management system. The cooling tower can be set up in the hydraulic press management system, to ensure the natural ventilation effect of the cooling tower, carry out an immediate inquiry on the cooling tower's heat exhaust pipe and the transmission belt of the electric fan, improve its heat dissipation effect, and carry out cleaning anytime and anywhere, for the This ensures the heat removal efficiency of the cooling tower. , Be cautious when choosing hydraulic oil filter elements. Because the heat removal baffle is set in the fuel tank of the car, if its insulation effect is weak, it will return to the hydraulic press management system after the cycle time of the hydraulic oil to work. Therefore, it is necessary to carry out a real-time monitoring system for the liquid level aspect ratio in the automobile fuel tank to ensure that it is within the overall planning of everything normal. When carrying out inspection and supervision, you can insist on the vertical type of the arm of the small excavator and the ground, so that the bucket is not very good to touch the ground, and use the car fuel tank level gauge to check the hydraulic oil level. When the car oil tank is refrigerated, make sure that its liquid level gauge is in the middle of the center line and the exit, and when the oil is rolling, the level gauge is smaller than the release. If the level gauge exits lower, the gear oil must be compensated immediately. , Analysis of the hot and shortcoming of the hydraulic press management system of the small excavator, (2) Effective application of the components of the hydraulic press management system, 1) When carrying out the application of the small excavator management system, it is necessary to ensure that the work pressure accepted by its work is effective. the overall plan. It is because, if the overall planning of the working pressure is exceeded, the temperature in the hydraulic press management system will rise, jeopardizing its normal work; if the working pressure of its management system is too low, open the preset working pressure of the speed control valve. If the value is relatively low, it will cause different levels of damage to its pressure relief function, which will easily cause the oil circuit board to be opened again and again, which will cause the management system to overflow again and again and become hot. Therefore, it is necessary to effectively set the working pressure accepted by the work of different oil circuit boards in the hydraulic press management system. , 2) Different applications of the hydraulic system in the hydraulic press management system will damage its components to different levels, so pay attention to its application and repair. Assuming that the damage of the components exceeds the inevitable overall planning and jeopardizes its application efficiency, it will cause the management system to leak, the oil temperature will be high, and then cause the management system to fail, and the management system will gradually become hot. There are two types of leakage in the hydraulic press management system: internal leakage and external leakage. The main hazard factor of high oil temperature in the management system is still leakage. Assuming that the leakage situation is not optimistic, the output working pressure of the pump casing will not be optimistic, and the power will not be able to satisfy its regulations. Therefore, it is necessary to carry out effective application of its components, and carry out timely inquiry and replacement to reduce its management system. possibility of leakage. When replacing the gear oil, it is necessary to carry out a multi-directional inquiry of the hydraulic oil filter element of this product every time to prevent it from being stuck. 4. In the application of small excavators, the operation of the hydraulic press management system has always been valued, which is related to the hydraulic press management system itself. The application of the hydraulic press management system drives the function of the commodity, effectively reduces its energy consumption, and can be consistent with the function of the server, and its operation function is also a huge drive. However, the hydraulic press management system of the small excavator often shows hot defects, which greatly jeopardizes its normal work and causes different levels of damage to the surrounding natural environment. Therefore, it is necessary to do a variety of analysis on the harmful factors of its hot, and to carry out a fundamental study on it, to improve the professional skills of the hydraulic press management system, and to reduce the possibility of its hot defects.

On January 12, the HT08 mini excavator was loaded in the Hightop Group Industrial Park and will be sent to Germany soon. At present, Hightop Group's excavator series products have obtained EU CE certification, ISO quality system certification, TVU certification, etc. The model of the micro excavator shipped this time is HT08, which is a compact excavator with strong power and stable work. The whole vehicle of HT08 small excavator is sandblasted, acid washed, phosphated and sprayed, which can increase the adhesion of paint molecules, and is more durable, non-bleaching and smoother. HT08 excavator can also be used with auger, gripper, rake, scarifier, narrow bucket and other attachments to meet different construction occasions.