Energy absorption type tractor cab suspension structure

Abstract

The utility model belongs to the technical field of vehicle body suspension, and particularly discloses an energy absorption type tractor cab suspension structure which comprises two suspension supports, a connecting base is fixedly connected between the upper sides of the two suspension supports, and the upper portions of the sides, away from each other, of the two suspension supports are both rotationally connected with moving wheel upper connecting frames. The bottoms of the sides, away from each other, of the two suspension supports are rotationally connected with moving wheel lower connecting frames, a fixing plate is fixedly connected between the bottoms of the front sides of the two suspension supports, a cross beam is fixedly connected between the upper portions of the front sides of the two suspension supports, and a shock absorber is installed on the front side of the cross beam. The gear is driven to rotate by rotating the turntable, so that the two rack plates slide oppositely or separately, the mounting block is further driven to be adjusted, and the shock absorber is mounted at the upper part of the adjusted mounting block, so that the elastic potential energy of the shock absorber is changed to adapt to different working environments and load conditions.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle body suspension, and in particular relates to an energy-absorbing tractor cab suspension structure. Background Art

[0002] With the continuous development of agricultural mechanization, tractors, as important agricultural equipment, have increasingly received attention for the comfort and safety of their cabs. In order to improve the comfort of the cab, energy-absorbing suspension structures have become the first choice due to their excellent shock absorption performance and adaptability.

[0003] Existing energy-absorbing shock absorbers still have some shortcomings in their adjustment methods and lubrication systems. Many designs lack flexible adjustment mechanisms, making them unable to quickly respond to environmental changes. Furthermore, their lubrication systems are often simplistic, failing to ensure continuous lubrication under high-frequency and high-load conditions. This leads to reduced performance and service life. Therefore, an energy-absorbing tractor cab suspension structure was proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an energy-absorbing tractor cab suspension structure.

[0005] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The tooth on the attachment piece is meshed with tooth on upper sprocket.

[0006] In the above technical solution, further, the adjustment component includes two slide grooves, the slide grooves are opened on the inner wall of the beam, four sliders are slidably connected inside the slide grooves, a mounting block is fixedly connected between two of the sliders, and rack plates are fixedly connected on opposite sides of the two mounting blocks.

[0007] In the above technical solution, further, the rack plate and the gear are meshed, the upper side of the shock absorber is mounted on the front side of the mounting block by fixing bolts, a plurality of positioning holes are opened on the front side of the mounting plate, and the latch is engaged with the positioning holes.

[0008] In the above technical solution, further, the lubrication assembly includes two storage boxes, the bottom of the storage box is fixedly connected to the upper side of the beam, the storage box is slidably connected with a sliding block inside, the two sliding blocks are fixedly connected on the side close to each other with a connecting rod, the end of the connecting rod away from the sliding block is fixedly connected with a pressure plate, the two storage boxes are fixedly connected on the side away from each other with a pipe, and the end of the pipe away from the storage box is arranged at the output end of the shock absorber.

[0009] In the above technical solution, further, the outer side of the connecting rod is fixedly connected to a limiting plate, the side of the limiting plate close to the storage box is fixedly connected to a pressure spring, and the end of the pressure spring away from the limiting plate is fixedly connected to the side close to the two storage boxes.

[0010] In the above technical solution, further, the pressure plate and the cam are fitted together, and a liquid filling port is installed on the upper side of the storage box.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The utility model drives the gear to rotate by rotating the turntable, causing the two rack plates to slide relative to or away from each other, further driving the mounting block to adjust, and installing the shock absorber on the upper part of the adjusted mounting block, so that the elastic potential energy of the shock absorber changes to adapt to different working environments and load conditions.

[0013] 2. The utility model drives the pressure plate to slide by rotating the cam, and further drives the connecting rod to slide, so that the sliding block slides to transport the lubricating oil or grease inside the storage box to the output end of the shock absorber through the pipeline, lubricating the output end of the shock absorber, ensuring that the shock absorber is always in the best working condition, extending its service life and improving its overall performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the suspension bracket structure proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the beam structure proposed by the utility model;

[0017] Figure 4 This is a schematic diagram of the connecting shaft structure proposed by the utility model;

[0018] Figure 5 Based Figure 2 Enlarged view of point A in the middle;

[0019] Figure 6 This is a cross-sectional view of the storage box proposed by the present invention.

[0020] In the figure: 1. Suspension bracket; 2. Connecting seat; 3. Upper connecting frame of moving wheel; 4. Lower connecting frame of moving wheel; 5. Fixing plate; 6. Crossbeam; 7. Shock absorber; 8. Fixing bolt; 9. Mounting plate; 10. Turntable; 11. Latch; 12. Positioning hole; 13. Gear; 14. Slider; 15. Mounting block; 16. Rack plate; 17. Connecting shaft; 18. Cam; 19. Storage box; 20. Sliding block; 21. Connecting rod; 22. Limiting plate; 23. Pressure plate; 24. Pressure spring; 25. Pipe; 26. Slide groove. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1-6The energy-absorbing tractor cab suspension structure shown in the figure includes two suspension brackets 1. The suspension bracket 1 serves as the main supporting structure. A connecting seat 2 is fixedly connected between the upper sides of the two suspension brackets 1. The connecting seat 2 provides a stable connection between the two suspension brackets 1, thereby enhancing the rigidity of the overall structure. The upper parts of the two suspension brackets 1 on the side away from each other are both rotatably connected to the upper connecting frame 3 of the moving wheel, and the bottom parts of the two suspension brackets 1 on the side away from each other are both rotatably connected to the lower connecting frame 4 of the moving wheel. The rotating connection between the upper connecting frame 3 of the moving wheel and the lower connecting frame 4 of the moving wheel further enhances the flexibility of the suspension system, so that the tractor can better cope with the unevenness of the ground during driving. A fixing plate 5 is fixedly connected between the bottom of the front side of each suspension bracket 1. The fixing plate 5 provides additional support for the entire suspension structure to ensure the stability of the front side. A crossbeam 6 is fixedly connected between the upper front sides of the two suspension brackets 1. The crossbeam 6 is used to connect and support the components on the front side, thereby enhancing the overall structural stability. A shock absorber 7 is installed on the front side of the crossbeam 6. The shock absorber 7 is a key component of the energy-absorbing suspension structure, which is responsible for absorbing and reducing the impact force from the ground. The output end of the shock absorber 7 is rotatably connected to the outer side of the connecting frame 4 under the moving wheel. By rotatably connecting the output end of the shock absorber 7 to the connecting frame 4 under the moving wheel, the energy absorbed by the shock absorber 7 can be effectively transferred to the suspension system, further To further enhance the overall energy absorption effect, a mounting plate 9 is fixedly connected to the middle of the front side of the beam 6. The mounting plate 9 provides a basis for the installation of other components to ensure that they can be firmly fixed on the beam. The front side of the mounting plate 9 is rotatably connected to a turntable 10. The turntable 10 rotates within a certain range, further driving other components to rotate. The front edge of the turntable 10 is slidably connected to a latch 11. The sliding connection of the latch 11 is designed to lock the turntable 10 in a specific position to ensure that the turntable does not move accidentally during operation. The rear side of the turntable 10 is fixedly connected to a gear 13. The rotation of the turntable 10 further drives the gear 13 to rotate, and the gear 13 drives Other components move, the rear side of the gear 13 is fixedly connected to a connecting shaft 17, the fixed connection of the connecting shaft 17 enables the gear 13 to be effectively connected to other power transmission components, and the rear side of the connecting shaft 17 is fixedly connected to a cam 18, which is driven by the rotation of the connecting shaft 17 to drive the cam 18 to rotate, thereby achieving the effect of transmitting other components. An adjustment component is provided inside the front side of the beam 6. By setting the adjustment component, the system can be adjusted according to different working conditions to adapt to different loads and ground conditions. A lubrication component is provided on the upper side of the beam 6. By setting the lubrication component, the shock absorber 7 is lubricated to reduce the wear of the shock absorber 7, thereby achieving better shock absorption effect.

[0023] The adjustment component includes two slide grooves 26, which are opened on the inner wall of the beam 6. Four sliders 14 are slidably connected inside the slide grooves 26. The design of the slide grooves 26 provides a stable sliding path for the slider 14 to ensure that the slider can move smoothly during operation. A mounting block 15 is fixedly connected between the two sliders 14. The mounting block 15 is supported by the slider 14 to ensure that the mounting block 15 does not deviate during the sliding process. A rack plate 16 is fixedly connected to the opposite side of the two mounting blocks 15, and the rack plate 16 slides to drive the mounting block 15 to slide.

[0024] The rack plate 16 and the gear 13 are engaged with each other, so that the gear 13 can rotate to drive the rack plate 16 to slide. The upper side of the shock absorber 7 is mounted on the front side of the mounting block 15 by a fixing bolt 8. The use of the fixing bolt 8 ensures a firm connection between the shock absorber 7 and the mounting block 15, avoiding the loosening phenomenon that may occur during operation. A plurality of positioning holes 12 are provided on the front side of the mounting plate 9, and the latch 11 is engaged with the positioning hole 12, providing a convenient locking method to ensure that the latch 11 does not rotate when not in use.

[0025] The lubrication assembly includes two storage boxes 19, which are used to store lubricating oil or grease to ensure the continuous operation of the lubrication assembly. The bottom of the storage box 19 is fixedly connected to the upper side of the crossbeam 6 to ensure the stability of the storage box 19 during use. A sliding block 20 is slidably connected to the inside of the storage box 19, and the lubricating oil or grease inside the storage box 19 is squeezed out by sliding the sliding block 20. The two sliding blocks 20 are fixedly connected to a connecting rod 21 on the side close to each other. The connecting rod 21 is used to slide and drive the sliding block 20 to slide. The end of the connecting rod 21 away from the sliding block 20 is fixedly connected to a pressure plate 23, and the pressure plate 23 is used to slide and drive the connecting rod 21 to slide. The two storage boxes 19 are fixedly connected to a pipe 25 on the side away from each other. The pipe 25 is used to discharge the lubricating oil or grease. The end of the pipe 25 away from the storage box 19 is set at the output end of the shock absorber 7 to ensure that the lubricating oil or grease can be directly transported to the output end of the shock absorber 7, thereby improving the working efficiency of the shock absorber 7.

[0026] The outer side of the connecting rod 21 is fixedly connected to a limiting plate 22, which is used to limit the connecting rod 21. The side of the limiting plate 22 close to the storage box 19 is fixedly connected to a pressure spring 24. The connecting rod 21 is used to self-reset when subjected to external pressure. The end of the pressure spring 24 away from the limiting plate 22 is fixedly connected to the side close to the two storage boxes 19, ensuring that the pressure spring 24 can effectively apply pressure to push the pressure plate 23 to reset.

[0027] The pressure plate 23 and the cam 18 fit together, making it easy for the pressure plate 23 to rotate and drive the cam 18 to slide, thereby achieving effective power transmission. A liquid filling port is installed on the upper side of the storage box 19, which provides convenience for adding lubricating oil and ensures that maintenance and replenishment can be carried out at any time during use.

[0028] Working principle: When the suspension is in use, the fixing bolt 8 is rotated to separate the upper side of the fixing bolt 8 and the mounting block 15, and the latch 11 is taken out, and then the turntable 10 is rotated. The rotation of the turntable 10 drives the gear 13 to rotate, and the rotation of the gear 13 will drive the two rack plates 16 to slide relative to or away from each other. The sliding of the rack plate 16 drives the mounting block 15 to slide. When the mounting block 15 slides to the appropriate position, the turntable 10 is stopped and the latch 11 is re-engaged with the positioning hole 12 to fix the turntable 10 and further fix the gear 13. Then, the upper side of the shock absorber 7 is placed on the front side of the mounting block 15 and the shock absorber 7 is fixed by the fixing bolt 8, so that the position of the shock absorber 7 is changed, and the elastic potential energy of the shock absorber 7 is changed to achieve different shock absorption requirements. When the gear 13 rotates, it will also drive the connecting shaft 17 The rotation of the connecting shaft 17 drives the cam 18 to rotate. The rotation of the cam 18 causes its protruding part to squeeze the pressure plate 23, causing the pressure plate 23 to slide. The sliding of the pressure plate 23 drives the connecting rod 21 to slide, further driving the sliding block 20 to slide, squeezing the lubricating oil or grease inside the storage box 19 and delivering it to the output end of the shock absorber 7 through the pipe 25, thereby improving the working efficiency of the shock absorber 7. When the connecting rod 21 slides, it also drives the limit plate 22 to slide and squeezes the pressure spring 24 through the limit plate 22. When the pressure spring 24 is squeezed, it generates elastic force. When the cam 18 no longer squeezes the pressure plate 23, the pressure spring 24 will reset, thereby pushing the limit plate 22 to slide, causing the limit plate 22 to reset, further driving the sliding block 20 to reset, preparing for the next sliding of the pressure plate 23 to squeeze out the lubricating oil or grease.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-absorbing tractor cab suspension structure, comprising two suspension brackets (1), characterized in that: A connecting seat (2) is fixedly connected between the upper sides of the two suspension brackets (1), the upper parts of the two suspension brackets (1) on the side away from each other are rotatably connected to the upper connecting frame (3) of the moving wheel, the bottom parts of the two suspension brackets (1) on the side away from each other are rotatably connected to the lower connecting frame (4) of the moving wheel, a fixing plate (5) is fixedly connected between the bottom parts of the front sides of the two suspension brackets (1), a crossbeam (6) is fixedly connected between the upper parts of the front sides of the two suspension brackets (1), a shock absorber (7) is installed on the front side of the crossbeam (6), and the output end of the shock absorber (7) is rotatably connected to the upper part of the front side of the two suspension brackets (1). On the outside of the lower connecting frame (4) of the moving wheel, a mounting plate (9) is fixedly connected to the middle of the front side of the crossbeam (6), the front side of the mounting plate (9) is rotatably connected to a turntable (10), the front edge of the turntable (10) is slidably connected to a latch (11), the rear side of the turntable (10) is fixedly connected to a gear (13), the rear side of the gear (13) is fixedly connected to a connecting shaft (17), the rear side of the connecting shaft (17) is fixedly connected to a cam (18), an adjustment component is provided inside the front side of the crossbeam (6), and a lubrication component is provided on the upper side of the crossbeam (6).

2. The energy-absorbing tractor cab suspension structure according to claim 1, characterized in that: The adjustment assembly includes two slide grooves (26), the slide grooves (26) are opened on the inner wall of the beam (6), four sliders (14) are slidably connected inside the slide grooves (26), a mounting block (15) is fixedly connected between two sliders (14), and a rack plate (16) is fixedly connected to the opposite side of the two mounting blocks (15).

3. The energy-absorbing tractor cab suspension structure according to claim 2, characterized in that: The rack plate (16) and the gear (13) are meshed with each other, and the upper side of the shock absorber (7) is mounted on the front side of the mounting block (15) via a fixing bolt (8). A plurality of positioning holes (12) are provided on the front side of the mounting plate (9), and the latch (11) is engaged with the positioning holes (12).

4. The energy-absorbing tractor cab suspension structure according to claim 1, characterized in that: The lubrication assembly includes two storage boxes (19), the bottom of the storage box (19) is fixedly connected to the upper side of the crossbeam (6), the storage box (19) is slidably connected to a sliding block (20) inside, the two sliding blocks (20) are fixedly connected to a connecting rod (21) on the side close to each other, and the end of the connecting rod (21) away from the sliding block (20) is fixedly connected to a pressure plate (23), and the two storage boxes (19) are fixedly connected to a pipe (25) on the side away from each other, and the end of the pipe (25) away from the storage box (19) is arranged at the output end of the shock absorber (7).

5. The energy-absorbing tractor cab suspension structure according to claim 4, characterized in that: The outer side of the connecting rod (21) is fixedly connected to a limit plate (22), and a pressure spring (24) is fixedly connected to a side of the limit plate (22) close to the storage box (19). An end of the pressure spring (24) away from the limit plate (22) is fixedly connected to a side close to the two storage boxes (19).

6. The energy-absorbing tractor cab suspension structure according to claim 4, characterized in that: The pressing plate (23) and the cam (18) are fitted together, and a liquid injection port is installed on the upper side of the storage box (19).

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