Abstract: China is a large agricultural country, and with the development of technology, agricultural machinery has become one of the main tools for agricultural production. Among them, bearings are the basic components of various agricultural machinery, and this article analyzes and studies the relevant disassembly devices of general bearings for agricultural machinery.

Keywords: agricultural machinery; Bearing; dismounting device

Currently, the bearing disassembly tools used in agricultural machinery mainly include two types: manual handles and hydraulic hook handles. The manual handle has the characteristics of energy conservation and environmental protection, and cannot disassemble large bearings. The hydraulic hook handle has the characteristics of fast disassembly speed and can withstand large loads. However, using this method can easily cause certain damage and unnecessary waste during operation. Therefore, neither of these methods can effectively solve the maintenance problems in agricultural machinery. Therefore, it is necessary to strengthen the research on the disassembly device of general bearings for agricultural machinery.

1. Analysis of universal bearing disassembly device

The universal bearing disassembly device mainly consists of air source generating components such as motors, air compressors, gas tanks, control components, working components, and corresponding auxiliary working components. As shown in Figure 1, the compressed gas generated by the gas source generating component enters the working element through the control element, thereby achieving functions such as cylinder fast forward and stop, while the auxiliary element helps to fix the bearing and perform corresponding support work.

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1. Motor; 2-Air compressor; 3- Gas cylinder; 4-Chuck; 5-Locking device;

6-steel rail; 7-axis bracket; 8-axis; 9-Lock nut; 10- Bearings;

11 cylinder; 12- Cylinder fixing bolt; 13- Control components

Figure 1 Schematic diagram of general bearing structure

1.1 Working principle of bearings

During the process of disassembling bearings, the bearings and shafts are usually placed on a chuck and shaft bracket. By adjusting the height of the chuck and placing the center of the shaft in a position that is balanced with the center of the piston rod, the upper part of the chuck needs to be adjusted. The chuck frame and slide rail need to be adjusted to ensure that the distance between the shaft and the piston is controlled at around 0.2 meters. After completing this series of adjustments, the nuts on the device need to be fixed to effectively avoid the situation where the device shakes during operation and affects work efficiency.

1.2 Design of various components of bearings

One is the design of the chuck and chuck holder. Due to the fact that the traditional agricultural machinery bearing disassembly tool with a hook type chuck can cause a certain degree of damage to the equipment, and it is difficult to fix the position of the bearing. If the design is not reasonable, unnecessary mechanical accidents may occur. Therefore, a new type of disassembly device consisting of two semi-circular rings is adopted to adjust the chuck by embracing, and corresponding slots are set inside the rings. This not only effectively adjusts it, improves work efficiency, but also reduces damage to the mechanical equipment; The second is to form corresponding locking devices for adjustable sliding rails. Due to the easy influence of the position between the bearing and the shaft during the disassembly process of agricultural machinery bearings, there are certain requirements for the applicability of the disassembly equipment and the adjustability of the initial position of the chuck from the piston rod in agricultural machinery. Only by strengthening the adjustment of the chuck and piston rod positions and strengthening the applicability of the disassembly equipment settings can the universality and work efficiency of the bearings be improved. In addition, to ensure that the chuck moves horizontally on the slide rail and avoid shaking due to excessive load, the chuck should be fixed on the sliding block. Rolling friction should be used between the sliding block and the slide rail to reduce the friction coefficient, which can effectively avoid damage to the slide rail caused by sliding; The third is component selection. Due to the fact that universal bearings are mainly disassembled under the drive of pneumatic systems, which are the core of equipment operation, the design process should be based on the steps of equipment operation. In practical work, if there is insufficient disassembly force, the pneumatic system should be replaced with a traditional hydraulic system to enhance the power of the equipment and improve work efficiency. In addition, in the process of selecting components, the working steps should be clarified first, and the piston rod of the pneumatic system should be installed to achieve functions such as fast forward, stop, and rewind. Secondly, the design of the pneumatic system; After Z, the component parameters are selected by the computer. The calculation of parameters mainly includes the calculation of parameters for the piston rod, cylinder wall, and air consumption.

2. Research on the disassembly device for general bearings in agricultural machinery

Regarding the research on the universal bearing device for agricultural machinery, the selected bearings should meet the requirements of modern agricultural machinery, and commonly used types of bearings should be selected to reflect the representativeness of the bearings and the universality of the device. Therefore, the obstacles generated during the disassembly process of the bearings are mainly the friction generated between the bearings and the shaft during the movement process, and the unloading force will increase with the continuous increase of the contact area between the bearings and the shaft. Therefore, the following conclusions can be drawn from the research on the universal bearing unloading device for agricultural machinery: when the chuck clamp is within a reasonable range, the interior of the chuck is relatively flat and there are no protrusions; Under normal operation of the pneumatic system and reasonable design of piston rod thrust, it can achieve full load safe operation during the working process; Due to the ability of universal agricultural machinery devices to disassemble bearings of different outer diameters, their disassembly range is wide, which can significantly improve work efficiency to a certain extent, ensuring that agricultural machinery equipment losses are reduced to a minimum.

3. Conclusion

Regarding the research on the universal bearing dismantling device for agricultural machinery, this paper analyzes the structural composition and working principle of the universal bearing dismantling device, and analyzes the component design of the bearing structure, including chuck, adjustable stroke slide rail and locking device, component selection, etc. Due to the friction between the bearing and the shaft, if the contact area between the bearing and the shaft gradually increases, it may increase its dismantling force. Therefore, using a universal bearing dismantling device can not only improve work efficiency, but also ensure the safe and stable operation of agricultural machinery. Overall, the universal bearing disassembly device has high promotional value and should be widely promoted in agricultural machinery.

2025 May 2nd Week FK Product Recommendation:

Agricultural Bearings:

Farm machinery equipment and agricultural bearings are often subjected to harsh weather conditions and season operations. These are just some of the factors that place them under more difficult conditions than many other applications.

Special Agricultural Bearings for planters, mowers and agricultural equipment. Bearings below include hex bore bearings. As one of the leading agricultural bearings manufacturers and suppliers in China for more than 50 years, we warmly welcome you to buy top quality agricultural bearings from FK Group.

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