Truck rear axle support rubber shock absorber

Abstract

The utility model discloses a truck rear axle support rubber shock absorber, including upper mounting seat and lower mounting seat, the lower mounting seat sets up below the upper mounting seat, the upper mounting seat and lower mounting seat opposite side all are provided with annular plate, and two the annular plate between is connected through damping component, be provided with rubber connecting component between two annular plates, be provided with limit fixed component on the upper mounting seat, the rubber connecting component includes annular frame, the number of annular frame is two and sets up at the surface of two annular plates respectively, and the surface of two annular frame is fixedly connected through rubber shock absorbing cover. The utility model discloses through setting limit fixed component, thereby convenient with the annular plate of upper mounting seat and located top split, convenient with the damping component from rubber shock absorbing cover and abstracted, convenient with rubber connecting component and disassembled, convenient for its maintenance and overhaul, has improved the convenience of dismounting, has improved its service life.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber shock absorbers, specifically a rubber shock absorber for a truck rear axle bracket. Background Technology

[0002] Rubber shock absorbers, as an important type of vibration damping component, have been widely used in various types of machinery, automobiles, railway locomotives, water transport vehicles, airplanes, and other aircraft. In short, rubber shock absorbers are needed wherever vibration damping and isolation are required; for example, truck rear axle supports typically utilize rubber shock absorbers.

[0003] According to application number CN202322552821.3, a truck rear axle bracket rubber shock absorber is disclosed, including a mounting base, the mounting base including a connecting seat and a protective pad.

[0004] The rubber shock absorber in the above case is a one-piece molded unit, which makes it inconvenient to remove the rubber shock absorber sleeve from the rubber shock absorber. This makes it impossible to maintain and repair the internal shock absorber components, reducing the flexibility of use. To address this, we provide a rubber shock absorber for truck rear axle brackets. Utility Model Content

[0005] The purpose of this invention is to provide a rubber shock absorber for a truck rear axle bracket to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a truck rear axle bracket rubber shock absorber, including an upper mounting base and a lower mounting base, wherein the lower mounting base is disposed below the upper mounting base, and an annular plate is provided on opposite sides of the upper and lower mounting bases, the two annular plates are connected by a shock-absorbing component, a rubber connecting component is provided between the two annular plates, and a limit fixing component is provided on the upper mounting base.

[0007] Preferably, the rubber connecting assembly includes two annular frames, which are respectively disposed on the surfaces of two annular plates, and the surfaces of the two annular frames are fixedly connected by a rubber shock-absorbing sleeve.

[0008] Preferably, the limiting and fixing assembly includes a plug and a sliding groove. The plug is installed at the bottom of the upper mounting base, and a slot is provided on the annular plate at the top and on the side near the plug. There are two sliding grooves, which are respectively opened at the bottom of the upper mounting base. The left and right sides of the inner wall of the sliding groove are fixedly connected by a sliding rod.

[0009] Preferably, a slider is slidably connected to the surface of the slide rod, a pull block is installed at the bottom of the slider, a locking block is installed on the side of the pull block near the annular frame, and a slot is opened on the surface of the annular frame and the surface of the top annular plate corresponding to the locking block.

[0010] Preferably, the surface of the upper mounting base is provided with a movable annular limiting frame, and the right side of the annular limiting frame is provided with a fastening bolt that is threadedly connected to the upper mounting base.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model, by setting a limiting and fixing component, facilitates the separation of the upper mounting base from the annular plate located at the top, makes it easy to pull the shock-absorbing component out of the rubber shock-absorbing sleeve, and also makes it easy to disassemble the rubber connecting component, facilitating its maintenance and repair, thereby improving the convenience of disassembly and assembly and extending its service life. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural schematic diagram of the mounting base, annular plate, annular frame, pull block and annular limiting frame of this utility model from the bottom view;

[0015] Figure 3 This is a structural cross-sectional view of the front view of this utility model;

[0016] Figure 4 This is a structural cross-sectional view of the mounting plate, annular plate, and limiting and fixing components of this utility model from the front view.

[0017] In the diagram: 1 Upper mounting base, 2 Lower mounting base, 100 Annular plate, 3 Shock absorber assembly, 31 Cylinder, 32 Piston rod, 33 Buffer spring, 4 Rubber connecting assembly, 41 Annular frame, 42 Rubber shock absorber sleeve, 5 Limiting and fixing assembly, 51 Insert block, 52 Slide groove, 53 Slot, 54 Slide rod, 55 Slider, 56 Pull block, 57 Locking block, 58 Locking groove, 59 Annular limiting frame, 510 Fastening bolt, 6 Connecting groove, 7 Connecting rod, 8 Adjusting block, 9 Positioning groove, 10 Positioning block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 A rubber shock absorber for a truck rear axle bracket includes an upper mounting base 1 and a lower mounting base 2. The lower mounting base 2 is located below the upper mounting base 1. An annular plate 100 is provided on opposite sides of the upper mounting base 1 and the lower mounting base 2. The top of the annular plate 100 is in contact with the bottom of the upper mounting base 1, and the bottom of the annular plate 100 is fixedly connected to the top of the lower mounting base 2. A rubber connecting assembly 4 is provided between the two annular plates 100. A limit fixing assembly 5 is provided on the upper mounting base 1. Four mounting holes are provided on the top of the upper mounting base 1 and the bottom of the lower mounting base 2. The rubber shock absorber is installed onto the truck rear axle bracket through the mounting holes.

[0020] The two annular plates 100 are connected by a shock-absorbing assembly 3. The shock-absorbing assembly 3 includes a cylinder 31, which is mounted on the bottom annular plate 100. A piston rod 32 is slidably connected inside the cylinder 31. The top end of the piston rod 32 passes through the cylinder 31 and extends to its outside, where it is fixedly connected to the top annular plate 100. A buffer spring 33 is sleeved on the surface of the cylinder 31. The top and bottom ends of the buffer spring 33 are in contact with the two annular plates 100 respectively.

[0021] The rubber connecting assembly 4 includes two annular frames 41, which are respectively disposed on the surfaces of two annular plates 100. The surfaces of the two annular frames 41 are fixedly connected by rubber shock-absorbing sleeves 42, which are made of EPDM rubber. The bottom annular frame 41 has two positioning grooves 9 on its side near the lower mounting base 2. The top of the lower mounting base 2 is fixedly connected to a positioning block 10 at the position corresponding to the positioning groove 9. The top of the positioning block 10 passes through the positioning groove 9 and extends into it, contacting the inner wall of the positioning groove 9. By setting the positioning grooves 9 and the positioning blocks 10, the stability of the bottom annular frame 41 sleeved on the bottom annular plate 100 is ensured. At the same time, the elasticity of the rubber shock-absorbing sleeves 42 makes the two annular frames 41 move away from each other, preventing the annular frames 41 from detaching from the annular plate 100. The side of the two annular frames 41 that moves away from each other is in contact with the upper mounting base 1 and the lower mounting base 2, respectively. The inner wall of the annular frame 41 is in contact with the surface of the annular plate 100.

[0022] In the shock absorption assembly 3, the sliding fit between the cylinder 31 and the piston rod 32 provides damping buffer. The buffer spring 33 is sleeved on the outside of the cylinder 31 and absorbs vibration energy through compression and rebound. The rubber shock absorber sleeve 42 of the rubber connection assembly 4 further attenuates vibration by utilizing the elasticity of rubber. The combination of the two forms a dual shock absorption mechanism of damping and elasticity, which effectively reduces the bumps and impacts during the driving process of the truck rear axle, and improves the driving stability of the vehicle and the life of the parts.

[0023] The limiting and fixing assembly 5 includes a plug 51 and a sliding groove 52. The plug 51 is installed at the bottom of the upper mounting base 1. A slot 53 is provided on the top annular plate 100 near the plug 51. The bottom of the plug 51 passes through the slot 53 and extends into it, contacting the inner wall of the slot 53. There are two sliding grooves 52, each located at the bottom of the upper mounting base 1. The left and right sides of the inner wall of the sliding groove 52 are fixedly connected by a sliding rod 54. A slider 55 is slidably connected to the surface of the sliding rod 54. A pull block 56 is fixedly connected to the bottom of the slider 55. The pull block 56 is in contact with the top annular frame 41 on the side near the annular frame 41. A locking block 57 is fixedly connected to the side of the pull block 56 near the annular frame 41. The surface of the annular frame 41 and the surface of the top annular plate 100, corresponding to the locking block 57, are interconnected. The slot 58 and the locking block 57 extend through the slot 58 and into it, contacting the inner wall of the slot 58. The surface of the upper mounting base 1 is provided with a movable annular limiting frame 59. The inner wall of the annular limiting frame 59 contacts the surface of the upper mounting base 1 and the side of the pull block 56. The right side of the annular limiting frame 59 is provided with a fastening bolt 510 that is threaded to the upper mounting base 1. The left side of the upper mounting base 1 is provided with a connecting groove 6. The top and bottom of the inner wall of the connecting groove 6 are fixedly connected by a connecting rod 7. The surface of the connecting rod 7 is slidably connected with an adjusting block 8. The left side of the adjusting block 8 is fixedly connected to the inner wall of the annular limiting frame 59. By setting the connecting groove 6, the connecting rod 7 and the adjusting block 8, the stability of the annular limiting frame 59 when moving up and down is improved, and the annular limiting frame 59 is prevented from detaching from the upper mounting plate 1.

[0024] When maintenance and repair of the shock absorber assembly 3 are required, loosen the fastening bolts 510, pull the annular limit frame 59 upward, the annular limit frame 59 separates from the pull block 56, exposing the pull block 56, pull the pull block 56 outward, causing the slider 55 to slide along the slide rod 54, causing the locking block 57 to disengage from the locking groove 58, releasing the locking between the top annular frame 41 and the top annular plate 100 and the upper mounting base 1, pull the upper mounting base 1 upward, the upper mounting base 1 causes the insert block 51 to separate from the slot 53, and then pull the annular frame 41 located at the top upward, the annular frame 41 causes the rubber shock absorber sleeve 42 to move upward, causing the positioning groove 9 to separate from the positioning block 10, at which point the rubber shock absorber sleeve 42 can be removed, making it convenient to maintain the shock absorber assembly 3.

[0025] By setting the limiting and fixing component 5, it is easy to separate the upper mounting base 1 from the annular plate 100 located at the top, and it is easy to pull the shock absorption component 3 out of the rubber shock absorption sleeve 42. At the same time, it is easy to disassemble the rubber connecting component 4, which facilitates maintenance and repair, improves the convenience of disassembly and assembly, and extends its service life.

[0026] In use, align the mounting holes at the bottom of the lower mounting bracket 2 with the corresponding positions of the truck's rear axle bracket and secure them with bolts; similarly, connect the mounting holes at the top of the upper mounting bracket 1 to the rear axle bracket with bolts to ensure that the two mounting brackets are vertically aligned. When the truck travels over bumpy roads, the vibration of the rear axle bracket is transmitted to the bottom annular plate 100 through the lower mounting bracket 2, causing the cylinder 31 to move up and down. The piston rod 32 slides inside the cylinder 31, and the damping medium and hydraulic oil inside the cylinder 31 generate damping force to reduce the vibration frequency. At the same time, the buffer spring 33 is compressed or extended, absorbing vibration energy through elastic deformation. The rubber damping sleeve 42 further attenuates high-frequency vibration by utilizing the elastic deformation of the rubber, reducing the amplitude of vibration transmitted to the vehicle body.

[0027] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber shock absorber for a truck rear axle bracket, characterized in that: It includes an upper mounting base (1) and a lower mounting base (2), the lower mounting base (2) is located below the upper mounting base (1), and an annular plate (100) is provided on the opposite side of the upper mounting base (1) and the lower mounting base (2). The two annular plates (100) are connected by a shock-absorbing component (3), and a rubber connecting component (4) is provided between the two annular plates (100). A limit fixing component (5) is provided on the upper mounting base (1).

2. The truck rear axle bracket rubber shock absorber according to claim 1, characterized in that: The rubber connection assembly (4) includes an annular frame (41), and there are two annular frames (41) respectively disposed on the surface of two annular plates (100). The surfaces of the two annular frames (41) are fixedly connected by a rubber shock-absorbing sleeve (42).

3. The truck rear axle bracket rubber shock absorber according to claim 2, characterized in that: The limiting and fixing component (5) includes a plug (51) and a slide (52). The plug (51) is installed at the bottom of the upper mounting base (1). A slot (53) is provided on the annular plate (100) at the top and on the side near the plug (51). There are two slides (52) and they are respectively opened at the bottom of the upper mounting base (1). The left and right sides of the inner wall of the slide (52) are fixedly connected by a slide rod (54).

4. The truck rear axle bracket rubber shock absorber according to claim 3, characterized in that: The slider (54) is slidably connected to a slider (55), and a pull block (56) is installed at the bottom of the slider (55). A locking block (57) is installed on the side of the pull block (56) near the annular frame (41). The surface of the annular frame (41) and the surface of the top annular plate (100) are both provided with interconnected slots (58) corresponding to the locking block (57).

5. The truck rear axle bracket rubber shock absorber according to claim 4, characterized in that: The surface of the upper mounting base (1) is provided with a movable annular limiting frame (59), and the right side of the annular limiting frame (59) is provided with a fastening bolt (510) that is threadedly connected to the upper mounting base (1).

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