Rear rubber suspension assembly of cab

Abstract

The utility model discloses a cab rear rubber suspension assembly, which belongs to the technical field of machinery and comprises a bottom plate, a folded plate is arranged at the upper end of the bottom plate, a waved plate is arranged on the upper side of the folded plate, a top plate is arranged on the upper side of the waved plate, a plurality of buffer columns are arranged between the top plate and the waved plate, and a first screw is in threaded connection with the middle position between the top plate and the folded plate. The two sides of the portion between the waved plate and the folded plate are in threaded connection with second screw rods, the two sides of the portion between the folded plate and the bottom plate are provided with supporting assemblies, and the positions, corresponding to the folded plate, of the two sides of the upper end of the bottom plate are provided with buffering assemblies. Strip-shaped plates on the two sides of the lower end of a folded plate push sliding plates to move in a fixing frame through connecting plates, the sliding plates move to compress damping rods and springs, the damping rods and the springs can play a role in buffering the folded plate, the buffering effect of the device is improved by arranging a buffering assembly, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery, and in particular relates to a rear rubber suspension assembly of a cab. Background Art

[0002] The tractor cab is installed on its chassis. Since tractors generally operate in fields with harsh environments, their cabs are subjected to large impacts and vibrations during operation. The driver is severely jolted, which can easily cause fatigue and lead to safety accidents. Therefore, shock absorbers are usually installed at the bottom of the tractor cab.

[0003] Chinese patent application number 2022211288012 discloses a rear suspension assembly for a tractor cab, belonging to the field of mechanical technology. It solves the problem of the existing rear suspension assembly of the tractor cab being difficult to adjust the compression of the shock-absorbing block and having an unsatisfactory buffering effect. The rear suspension assembly of the tractor cab includes an upper mounting plate and a lower mounting plate. A buffer layer is provided between the upper mounting plate and the lower mounting plate. The buffer layer includes two buffer columns and a cylindrical buffer portion. The two buffer columns are symmetrically arranged around the axis of the buffer portion. The buffer portion passes through the lower mounting plate. A stud is provided between the upper mounting plate and the lower mounting plate. The stud passes through the upper mounting plate, the lower mounting plate and the buffer portion. The upper end of the stud is fixedly connected to a limit nut, and the limit nut rests on the upper mounting plate. The lower end of the stud is fixedly connected to an adjustment nut, and the adjustment nut rests on the lower end of the buffer portion. The rear suspension assembly of the tractor cab has the advantages of being able to adjust the compression and having a good buffering effect.

[0004] The above-mentioned patent discloses that the buffering effect of using buffer columns is poor during use, and there is no supporting structure at the lower end of the lower mounting plate. The lower mounting plate is prone to bending and damage after long-term use, and the practicality of the device is low. Summary of the Invention

[0005] In order to solve the problems raised in the above background technology, the utility model provides a cab rear rubber suspension assembly, which has the characteristics of good buffering effect and high practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rear rubber suspension assembly of a cab, comprising a bottom plate, a folding plate provided at the upper end of the bottom plate, a corrugated plate provided at the upper side of the folding plate, a top plate provided at the upper side of the corrugated plate, a number of buffer columns provided between the top plate and the corrugated plate, a screw rod 1 being threadedly connected at the middle position between the top plate and the folding plate, a screw rod 2 being threadedly connected at both sides between the corrugated plate and the folding plate, support components being provided on both sides between the folding plate and the bottom plate, and buffer components being provided at positions corresponding to the folding plates on both sides of the upper end of the bottom plate.

[0007] Preferably, the buffer assembly includes a fixed frame, a strip plate, a slide plate, a connecting plate, a damping rod and a spring, wherein fixed frames are provided on both sides of the upper end of the base plate at positions corresponding to the folding plate, a slide plate is provided on the fixed frame, strip plates are provided on both sides of the upper end of the folding plate, the strip plate and the slide plate are connected by a connecting plate, a damping rod is provided at the lower end of the slide plate, and a spring is provided on the outside of the damping rod between the slide plate and the base plate.

[0008] Preferably, sliding grooves corresponding to the connecting plates are provided on both sides of the upper end of the fixing frame, and the two ends of the sliding plate are in close contact with the two ends inside the fixing frame.

[0009] Preferably, the fixing frame and the bottom plate, as well as the strip plate and the folding plate, are spot welded, and the two ends of the fixing frame and the second screw are staggered with each other.

[0010] Preferably, the support assembly includes vertical plates, horizontal plates, support plates, reinforcement rods and fixing bolts, wherein two vertical plates are provided on the lower sides of the two ends of the folding plate, horizontal plates are provided on both sides of the upper end of the bottom plate at positions corresponding to the vertical plates, support plates are provided on both sides between the horizontal plate and the vertical plate, and several reinforcement rods are provided between the two support plates. The vertical plate and the folding plate, as well as the horizontal plate and the bottom plate are all connected and fixed by fixing bolts.

[0011] Preferably, threaded holes corresponding to the fixing bolts are provided in the folding plate and the bottom plate, and the vertical plate, the supporting plate and the horizontal plate are a welded integral structure.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model provides a buffer assembly. When the buffer column is squeezed, the folding plate will also be squeezed. The strip plates on both sides of the lower end of the folding plate push the slide plate to move in the fixed frame through the connecting plate. The movement of the slide plate compresses the damping rod and the spring. The damping rod and the spring can buffer the folding plate. The buffer assembly is provided to improve the buffering effect of the device and improve the practicality of the device.

[0014] 2. The utility model sets a support assembly to fix the vertical plate and the horizontal plate to the folding plate and the bottom plate through fixing bolts. The vertical plate and the horizontal plate can support the folding plate through the support plate, thereby improving the firmness between the folding plate and the bottom plate. At the same time, a reinforcing rod is set between the two support plates to make the two support plates more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a rear perspective view of the present invention;

[0017] Figure 3 This is a three-dimensional diagram of the support assembly of the utility model;

[0018] In the figure: 1. Bottom plate; 2. Folding plate; 3. Buffer column; 4. Top plate; 5. Corrugated plate; 6. Screw 1; 7. Screw 2; 8. Buffer assembly; 81. Fixed frame; 82. Strip plate; 83. Slide plate; 84. Connecting plate; 85. Damping rod; 86. Spring; 9. Support assembly; 91. Vertical plate; 92. Horizontal plate; 93. Support plate; 94. Reinforcement rod; 95. Fixing bolt. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] See also Figure 1-3 The utility model provides the following technical solutions: a cab rear rubber suspension assembly includes a bottom plate 1, a folding plate 2 is provided at the upper end of the bottom plate 1, a wave plate 5 is provided on the upper side of the folding plate 2, a top plate 4 is provided on the upper side of the wave plate 5, a number of buffer columns 3 are provided between the top plate 4 and the wave plate 5, a screw 1 6 is threadedly connected to the middle position between the top plate 4 and the folding plate 2, a screw 2 7 is threadedly connected to both sides between the wave plate 5 and the folding plate 2, support components 9 are provided on both sides between the folding plate 2 and the bottom plate 1, and buffer components 8 are provided at positions corresponding to the folding plate 2 on both sides of the upper end of the bottom plate 1.

[0022] Specifically, the buffer assembly 8 includes a fixed frame 81, a strip plate 82, a slide plate 83, a connecting plate 84, a damping rod 85 and a spring 86, wherein fixed frames 81 are provided on both sides of the upper end of the base plate 1 at positions corresponding to the folding plate 2, a slide plate 83 is provided in the fixed frame 81, strip plates 82 are provided on both sides of the upper end of the folding plate 2, the strip plates 82 and the slide plate 83 are connected by a connecting plate 84, a damping rod 85 is provided at the lower end of the slide plate 83, and a spring 86 is provided on the outside of the damping rod 85 between the slide plate 83 and the base plate 1.

[0023] By adopting the above technical solution, when the buffer column 3 is squeezed, the folding plate 2 will also be squeezed. The strip plates 82 on both sides of the lower end of the folding plate 2 push the slide plate 83 to move in the fixed frame 81 through the connecting plate 84. The slide plate 83 moves to compress the damping rod 85 and the spring 86. The damping rod 85 and the spring 86 can play a buffering role on the folding plate 2. By setting the buffer component 8, the buffering effect of the device is improved, and the practicality of the device is improved.

[0024] Specifically, sliding grooves corresponding to the connecting plate 84 are provided on both sides of the upper end of the fixing frame 81 , and the two ends of the sliding plate 83 are tightly attached to the two ends inside the fixing frame 81 .

[0025] By adopting the above technical solution, the connecting plate 84 can slide on the upper end of the fixed frame 81, and the sliding plate 83 slides more stably in the fixed frame 81.

[0026] Specifically, the fixing frame 81 and the bottom plate 1 as well as the strip plate 82 and the folding plate 2 are all welded by spot welding, and the two ends of the fixing frame 81 and the second screw rod 7 are staggered with each other.

[0027] By adopting the above technical solution, spot welding makes the fixing frame 81 and the bottom plate 1 as well as the strip plate 82 and the folding plate 2 more secure, and the fixing frame 81 will not affect the rotation of the screw rod 7.

[0028] When this embodiment is used, when the cab rear rubber suspension assembly is used, the device is installed in a suitable position, the top plate 4 is fixedly connected to the lower end of the tractor cab, and the bottom plate 1 is fixedly connected to the tractor's gearbox. By rotating screw 1 6 and screw 2 7, several buffer columns 3 can be compressed or relaxed, thereby adjusting the stiffness of the rear suspension assembly. The folding plate 2 on the bottom plate 1 can support the wave plate 5 to prevent the wave plate 5 from being easily bent and damaged. By providing a buffer component 8, when the buffer column 3 is squeezed, the folding plate 2 will also be squeezed. The strip plates 82 on both sides of the lower end of the folding plate 2 push the slide plate 83 to move in the fixed frame 81 through the connecting plate 84. The slide plate 83 moves to compress the damping rod 85 and the spring 86. The damping rod 85 and the spring 86 can be used to buffer the folding plate 2. By providing the buffer component 8, the buffering effect of the device is improved, and the practicality of the device is improved.

[0029] Example 2

[0030] The difference between this embodiment and embodiment 1 is that: the support assembly 9 includes a vertical plate 91, a horizontal plate 92, a support plate 93, a reinforcing rod 94 and a fixing bolt 95, wherein two vertical plates 91 are provided on the lower sides of the two ends of the folding plate 2, horizontal plates 92 are provided on both sides of the upper end of the bottom plate 1 at positions corresponding to the vertical plates 91, support plates 93 are provided on both sides between the horizontal plate 92 and the vertical plate 91, and several reinforcing rods 94 are provided between the two support plates 93, and the vertical plate 91 and the folding plate 2, as well as the horizontal plate 92 and the bottom plate 1 are connected and fixed by fixing bolts 95.

[0031] By adopting the above technical solution, the vertical plate 91 and the horizontal plate 92 are fixed to the folding plate 2 and the bottom plate 1 by fixing bolts 95. The vertical plate 91 and the horizontal plate 92 can support the folding plate 2 through the support plate 93, thereby improving the firmness between the folding plate 2 and the bottom plate 1. At the same time, a reinforcing rod 94 is arranged between the two support plates 93 to make the two support plates 93 more stable.

[0032] Specifically, threaded holes corresponding to the fixing bolts 95 are provided in the folding plate 2 and the bottom plate 1 , and the vertical plate 91 , the supporting plate 93 and the horizontal plate 92 are a welded integral structure.

[0033] By adopting the above technical solution, the fixing bolts 95 can be screwed into the threaded holes of the folding plate 2 and the bottom plate 1, and the vertical plate 91, the support plate 93 and the horizontal plate 92 are welded into an integrated structure, which is more sturdy and durable.

[0034] When this embodiment is used, by setting a support assembly 9, the vertical plate 91 and the horizontal plate 92 are fixed to the folding plate 2 and the bottom plate 1 through fixing bolts 95. The vertical plate 91 and the horizontal plate 92 can support the folding plate 2 through the support plate 93, thereby improving the firmness between the folding plate 2 and the bottom plate 1. At the same time, a reinforcing rod 94 is set between the two support plates 93 to make the two support plates 93 more stable.

[0035] The damping rod 85 in the present invention is an existing disclosed technology, and the selected model is SQS.

[0036] The structure and working principle of the bottom plate 1, folding plate 2, buffer column 3, top plate 4, corrugated plate 5, screw 1 6 and screw 2 7 in the utility model have been disclosed in a rear suspension assembly of a tractor cab disclosed in Chinese patent application No. 2022211288012. Its working principle is that the top plate 4 is fixedly connected to the lower end of the tractor cab, and the bottom plate 1 is fixedly connected to the tractor's gearbox. By rotating screw 1 6 and screw 2 7, several buffer columns 3 can be compressed or relaxed, thereby achieving the adjustment of the stiffness of the rear suspension assembly.

[0037] The working principle and use process of the utility model are as follows: when the cab rear rubber suspension assembly is used, the device is installed in a suitable position, the top plate 4 is fixedly connected to the lower end of the tractor cab, the bottom plate 1 is fixedly connected to the gearbox of the tractor, and the plurality of buffer columns 3 can be compressed or relaxed by rotating the screw 1 6 and the screw 2 7, so as to adjust the rigidity of the rear suspension assembly. The folding plate 2 on the bottom plate 1 can support the wave plate 5 to prevent the wave plate 5 from being easily bent and damaged. By setting the buffer component 8, when the buffer column 3 is squeezed, the folding plate 2 will also be squeezed, and the strip plates 82 on both sides of the lower end of the folding plate 2 are pushed by the connecting plate 84. The slide plate 83 moves in the fixed frame 81, and the slide plate 83 moves to compress the damping rod 85 and the spring 86. The damping rod 85 and the spring 86 can play a buffering role on the folding plate 2. By setting the buffer component 8, the buffering effect of the device is improved, and the practicality of the device is improved. By setting the support component 9, the vertical plate 91 and the horizontal plate 92 are fixed to the folding plate 2 and the bottom plate 1 through the fixing bolts 95. The vertical plate 91 and the horizontal plate 92 can play a supporting role on the folding plate 2 through the support plate 93, thereby improving the firmness between the folding plate 2 and the bottom plate 1. At the same time, a reinforcing rod 94 is set between the two support plates 93 to make the two support plates 93 more stable.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cab rear rubber suspension assembly, comprising a bottom plate (1), a folding plate (2) being provided at the upper end of the bottom plate (1), a wave plate (5) being provided on the upper side of the folding plate (2), a top plate (4) being provided on the upper side of the wave plate (5), a plurality of buffer columns (3) being provided between the top plate (4) and the wave plate (5), a screw rod (6) being threadedly connected at the middle position between the top plate (4) and the folding plate (2), and a screw rod (7) being threadedly connected at both sides between the wave plate (5) and the folding plate (2), characterized in that: Support components (9) are provided on both sides between the folding plate (2) and the bottom plate (1), and buffer components (8) are provided on both sides of the upper end of the bottom plate (1) at positions corresponding to the folding plate (2).

2. The cab rear rubber suspension assembly according to claim 1, characterized in that: The buffer assembly (8) comprises a fixed frame (81), a strip plate (82), a slide plate (83), a connecting plate (84), a damping rod (85) and a spring (86), wherein fixed frames (81) are provided at positions corresponding to the folding plate (2) on both sides of the upper end of the bottom plate (1), a slide plate (83) is provided in the fixed frame (81), strip plates (82) are provided on both sides of the upper end of the folding plate (2), the strip plates (82) and the slide plate (83) are connected via a connecting plate (84), a damping rod (85) is provided at the lower end of the slide plate (83), and a spring (86) is provided on the outside of the damping rod (85) between the slide plate (83) and the bottom plate (1).

3. The cab rear rubber suspension assembly according to claim 2, characterized in that: Slide grooves corresponding to the connecting plate (84) are provided on both sides of the upper end of the fixed frame (81), and the two ends of the slide plate (83) are tightly attached to the two ends inside the fixed frame (81).

4. The cab rear rubber suspension assembly according to claim 2, characterized in that: The fixing frame (81) and the bottom plate (1), as well as the strip plate (82) and the folding plate (2), are all spot welded, and the two ends of the fixing frame (81) and the second screw (7) are staggered with each other.

5. The cab rear rubber suspension assembly according to claim 1, characterized in that: The support assembly (9) includes a vertical plate (91), a horizontal plate (92), a support plate (93), a reinforcing rod (94) and a fixing bolt (95), wherein two vertical plates (91) are provided on the lower sides of both ends of the folding plate (2), horizontal plates (92) are provided on both sides of the upper end of the bottom plate (1) at positions corresponding to the vertical plates (91), support plates (93) are provided on both sides between the horizontal plate (92) and the vertical plate (91), and a plurality of reinforcing rods (94) are provided between the two support plates (93), and the vertical plate (91) and the folding plate (2) as well as the horizontal plate (92) and the bottom plate (1) are connected and fixed by fixing bolts (95).

6. The cab rear rubber suspension assembly according to claim 5, characterized in that: The folding plate (2) and the bottom plate (1) are both provided with threaded holes corresponding to the fixing bolts (95), and the vertical plate (91), the supporting plate (93) and the horizontal plate (92) are a welded integral structure.

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