Damping bushing for chassis

Abstract

The utility model relates to the technical field of bushings, in particular to a shock absorption bushing for a chassis, which comprises a bushing main body, the bottom end of the bushing main body is mounted on a chassis, the bushing main body comprises an outer bushing and an inner bushing, the inner bushing is slidably connected to the inner side of the outer bushing, limiting grooves are formed in two sides of the inner wall of the outer bushing, and the limiting grooves are connected with the outer bushing. Limiting blocks slidably connected with the limiting grooves are installed on the two sides of the outer wall of the inner bush, buffering and positioning mechanisms are installed on the inner bush and the outer bush and comprise buffering assemblies and positioning assemblies, the buffering assemblies are used for buffering and damping the bush body, and the positioning assemblies are used for assembling the buffering assemblies; the buffer assembly is simple in structure and convenient to operate, when the buffer assembly is aged and damaged, a worker can quickly take out the buffer assembly for overhaul and maintenance, time and labor are saved in the combination and disassembly process, and the follow-up buffer damping effect is further guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to bush technology field, concretely relates to a shock absorbing bush for chassis. BACKGROUND

[0002] The automobile hybrid power is just installs a set of internal combustion engine on the pure electric vehicle, and the purpose is to reduce the pollution of the automobile and improve the driving range of the pure electric vehicle. The hybrid electric vehicle has two structural forms of series connection type and parallel type, and the chassis is used when the automobile hybrid power chassis is used. The existing chassis bush has shock absorption performance, but the shock absorption performance of the bush is relatively poor, so that the stability of the chassis shock absorbing bush during use is relatively poor, cannot meet the demand of various shock absorptions, cannot play the limiting and guiding function when the bush body is lifted, the strength of the chassis shock absorbing bush is relatively low, and the service life of the chassis shock absorbing bush is relatively low, therefore, a hybrid power chassis shock absorbing bush needs to be designed to solve the above problems.

[0003] In order to solve the above technical problems, the existing technology discloses a kind of hybrid power chassis shock absorbing bush with the announcement number CN215928216U, including bush body, the bottom of bush body is provided with support column, the bottom of bush body is slidably inserted with guide column, the inside of bush body is installed with reinforcing frame one, the inside of bush body is provided with buffer bin, buffer bin is installed with reinforcing plate two in the inside, the top of support column is fixed with reinforcing plate one, air spring is installed between reinforcing plate one and reinforcing plate two, and the top of reinforcing plate one and the bottom of reinforcing plate two are all opened with fixed groove one, and fixed groove one is installed with compression spring one in the inside.

[0004] Although the above-mentioned prior art can increase the shock absorption performance of the chassis shock absorbing bush and improve the stability of the chassis shock absorbing bush during use, the air spring, the compression spring one and the compression spring two are fixed and closed inside the bush body, and when the air spring, the compression spring one and the compression spring two are damaged, it is difficult for the staff to quickly take them out for maintenance, which affects the subsequent shock absorption effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of shock absorbing bush for chassis to solve the problem that air spring and compression spring one and compression spring two in the bush are fixed and closed inside the bush body, and when air spring and compression spring one and compression spring two are damaged, it is difficult for the staff to quickly take them out for maintenance, which affects the subsequent shock absorption effect.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A shock absorbing bushing for a chassis comprises a bushing body, a bottom end of the bushing body is mounted to a chassis frame, the bushing body comprises an outer bushing and an inner bushing, the inner bushing is slidingly connected to the inner side of the outer bushing, limit grooves are formed on both sides of the inner wall of the outer bushing, limit blocks are mounted on both sides of the outer wall of the inner bushing and are slidingly connected with the limit grooves, a buffer positioning mechanism is mounted on the inner bushing and the outer bushing, the buffer positioning mechanism comprises a buffer assembly and a positioning assembly, the buffer assembly is used for buffering and damping the bushing body, and the positioning assembly is used for assembling the buffer assembly.

[0008] As a preferred scheme of the utility model, the buffer assembly comprises a lap joint seat which is lap jointed on one side of the outer wall of the outer bushing, first rubber columns are mounted on both ends of the top of the lap joint seat, a first spring damping shock absorber is mounted between the two groups of first rubber columns on the top of the lap joint seat, a buffer seat is mounted on the top end of the first spring damping shock absorber and the two groups of first rubber columns.

[0009] As a preferred scheme of the utility model, synchronous grooves are formed on both ends of the inner wall of the buffer seat, sliding blocks are slidingly connected on both sides of the inner wall of the synchronous grooves, second rubber columns are mounted on the other end of the inner wall of the sliding blocks, second spring damping shock absorbers are mounted between the sliding blocks and the second rubber columns, first connecting plates are rotatably connected on one side of the sliding blocks, a supporting plate is rotatably connected between the other ends of the two groups of first connecting plates, and one side of the supporting plate is attached to one side of the inner bushing.

[0010] As a preferred scheme of the utility model, the positioning assembly comprises a movable rod which is slidingly connected to one end of the inside of the lap joint seat, a reset groove is formed on the outside of the movable rod in the inside of the lap joint seat, a reset plate is slidingly connected to the inside of the reset groove, connecting springs are mounted between both ends of one side of the reset plate and the inner wall of the reset groove, the reset plate is rotatably connected with the movable rod, an extension groove is formed on the other side of the outer wall of the outer bushing, a clamping plate is mounted on one end of the movable rod, and the clamping plate is slidingly connected with the extension groove.

[0011] As a preferred scheme of the utility model, a pressing groove is formed on one side of the inside of the outer bushing at the extension groove, a first linkage plate is mounted on one end of the inside of the pressing groove, rotating rods are rotatably connected on both sides of the first linkage plate, a second linkage plate is fixedly sleeved on the outer wall of the rotating rods, a third linkage plate is rotatably connected on one side of the other end of the second linkage plate, a fixing disc is lap jointed on one side of the third linkage plate, a sliding groove is formed on one side of the fixing disc, a sliding block which is slidingly connected with the sliding groove is mounted on one side of the third linkage plate, the side section of the sliding groove and the sliding block are both T-shaped, and a torsional spring is mounted between the outer wall of the rotating rod and the first linkage plate.

[0012] As the preferred scheme of the utility model, the other side of the fixed disc is rotationally connected with a rotating disc, one side of the rotating disc is provided with a positioning groove, and one side of the clamping plate is provided with a positioning block in sliding connection with the positioning groove.

[0013] As the preferred scheme of the utility model, the both sides of the inner wall of the pressing groove are provided with abutting grooves, the inner side of the abutting groove is in sliding connection with an abutting plate, a second spring is arranged between the abutting plate and the inner wall of the abutting groove, one side of the abutting plate is provided with a groove, one end of the clamping plate is in sliding connection with the groove, the opposite ends of the abutting plate and the clamping plate are provided with corresponding inclined surfaces, the other end of the movable rod is rotationally connected with a pull ring, the pull ring is made of rubber material, one side of the outer wall of the lapping seat located at one side of the movable rod is provided with a hanging rod, and the side section of the hanging rod is in the shape of a hook.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] In the utility model, the bushing main body is buffered and damped by the buffer assembly, the buffer assembly is assembled by the positioning assembly, the structure is simple and the operation is convenient, when the buffer assembly is aged and damaged, the staff can quickly take out the buffer assembly for maintenance, the process of combination and disassembly is time-saving and labor-saving, and the subsequent buffering and damping effect is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic view of the utility model;

[0017] Figure 2 It is the local three-dimensional structure schematic view of the lapping seat of the utility model;

[0018] Figure 3 It is the local sectional structure schematic view of the bushing main body of the utility model;

[0019] Figure 4 It is the local sectional structure schematic view of the lapping seat of the utility model.

[0020] In the drawing: 1, bushing main body; 2, chassis; 3, outer bushing; 4, inner bushing; 5, limiting block; 6, lapping seat; 7, first rubber column; 8, first spring damping shock absorber; 9, buffer seat; 10, sliding block; 11, second spring damping shock absorber; 12, first connecting plate; 13, supporting plate; 14, movable rod; 15, reset plate; 16, connecting spring; 17, clamping plate; 18, first linkage plate; 19, second linkage plate; 20, sliding groove; 21, rotating disc; 22, positioning block; 23, rotating rod; 24, abutting plate; 25, hanging rod. DETAILED DESCRIPTION

[0021] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments, and based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Embodiment: please refer to Figures 1-4 The present application provides a technical scheme:

[0023] A damping bushing for chassis, comprising a bushing body 1, the bottom end of the bushing body 1 is installed on a chassis 2, the bushing body 1 comprises an outer bushing 3 and an inner bushing 4, the inner bushing 4 is slidingly connected to the inner side of the outer bushing 3, limit grooves are formed on both sides of the inner wall of the outer bushing 3, limit blocks 5 slidingly connected with the limit grooves are installed on both sides of the outer wall of the inner bushing 4, a buffer positioning mechanism is installed on the inner bushing 4 and the outer bushing 3, the buffer positioning mechanism comprises a buffer assembly and a positioning assembly, the buffer assembly is used for buffering and damping the bushing body 1, and the positioning assembly is used for assembling the buffer assembly, the device can buffer and damp the bushing body 1 through the buffer assembly when in use, the positioning assembly assembles the buffer assembly, the structure is simple and the operation is convenient, when the buffer assembly is aged and damaged, the staff can quickly take out the buffer assembly for maintenance, the combination and disassembly process is time-saving and labor-saving, and the subsequent buffering and damping effect is further ensured.

[0024] In the present embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the positioning assembly comprises a movable rod 14 slidably connected to one end inside the lap seat 6, a reset slot is formed on the outside of the movable rod 14 inside the lap seat 6, a reset plate 15 is slidably connected inside the reset slot, connecting springs 16 are installed between the two ends of one side of the reset plate 15 and the inner wall of the reset slot, the reset plate 15 is rotatably connected with the movable rod 14, an extension slot is formed on the other side of the outer wall of the outer bushing 3, a clamping plate 17 is installed at one end of the movable rod 14, the clamping plate 17 is slidably connected with the extension slot, a pressing slot is formed on one side of the inside of the extension slot of the outer bushing 3, a first linkage plate 18 is installed at one end inside the pressing slot, rotating rods 23 are rotatably connected on both sides of the first linkage plate 18, a second linkage plate 19 is fixedly sleeved on the outer wall of the rotating rod 23, a third linkage plate is rotatably connected on one side of the other end of the second linkage plate 19, a fixed disc is lapped on one side of the third linkage plate, a sliding slot 20 is formed on one side of the fixed disc, a sliding block slidably connected with the sliding slot 20 is installed on one side of the third linkage plate, the side section of the sliding slot 20 and the sliding block is T-shaped, a torsional spring is installed between the outer wall of the rotating rod 23 and the first linkage plate 18, a rotating disc 21 is rotatably connected on the other side of the fixed disc, a positioning slot is formed on one side of the rotating disc 21, a positioning block 22 slidably connected with the positioning slot is installed on one side of the clamping plate 17. First, the lap seat 6 is lapped with the outer wall of the outer bushing 3, so that the buffer assembly is inserted into the inside of the outer bushing 3, at the same time, the clamping plate 17 will also slide into the inside of the extension slot, then the clamping plate 17 is buckled to drive the movable rod 14 and the reset plate 15 to slide, and the two groups of connecting springs 16 are extruded to retract, after the clamping plate 17 is pushed into the inside of the pressing slot, the positioning block 22 on the clamping plate 17 is also engaged with the positioning slot, the clamping plate 17 on the movable rod 14 can be twisted to rotate to the transverse direction, and the rotating disc 21 will also rotate.

[0025] In this embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , the two sides of the inner wall of the pressing slot are provided with abutting grooves, the abutting plate 24 is slidably connected inside the abutting groove, the second spring is installed between the abutting plate 24 and the inner wall of the abutting groove, the recess is formed on one side of the abutting plate 24, one end of the clamping plate 17 is slidably connected with the recess, the corresponding inclined surfaces are formed on the opposite ends of the abutting plate 24 and the clamping plate 17, then, continue to push and extrude the rotating disc 21 and the fixed disc to move, so that the clamping plate 17 and the abutting plate 24 are in contact, the inclined surfaces are also fitted, the abutting plate 24 is extruded to retract to the inside of the abutting groove through the second spring, so that the two groups of second linkage plates 19 are deflected with the rotating rod 23, so that the torsional spring is retracted, after the clamping plate 17 and the abutting plate 24 are completely staggered, the abutting plate 24 can be popped out again by the second spring, at this time, the pull ring is loosened back, the clamping plate 17 is moved back, the protruding end of the clamping plate 17 is clamped into the recess, then the pull ring is stretched, the clamping plate 17 is hung on the recess of the hanging rod 25 after being deflected, the positioning of the buffer assembly is realized.

[0026] In this embodiment, as shown inFigure 2 、 Figure 3 and Figure 4 As shown in

[0027] In this embodiment, as shown in Figure 2 、 Figure 3 and Figure 4 , the buffer assembly comprises a lap joint seat 6 which is lapped on one side of the outer bushing 3, the top of the lap joint seat 6 is provided with two first rubber columns 7, the top of the lap joint seat 6 between the two groups of first rubber columns 7 is provided with a first spring damper shock absorber 8, the first spring damper shock absorber 8 and the top of the two groups of first rubber columns 7 are provided with a buffer seat 9, the two ends of the inner wall of the buffer seat 9 are provided with synchronous grooves, the two sides of the inner wall of the synchronous grooves are slidably connected with sliding blocks 10, the other end of the inner wall of the sliding block 10 is provided with a second rubber column, the second spring damper shock absorber 11 is installed between the sliding block 10 and the second rubber column, the first connecting plate 12 is rotatably connected to one side of the sliding block 10, the other end of the two groups of first connecting plates 12 is rotatably connected with a supporting plate 13, one side of the supporting plate 13 is attached to one side of the inner bushing 4, and further, in order for the staff to timely overhaul and maintain, when the inner bushing 4 is impacted and vibrated, it moves and presses the supporting plate 13 in cooperation with the limiting block 5 and the limiting groove, forcing the first connecting plate 12 to deflect and stretch, so that the sliding block 10 presses the second spring damper shock absorber 11 and the second rubber column to preliminarily dampen and buffer, at the same time, the buffer seat 9 also moves downward, pressing each group of first rubber columns 7 and the first spring damper shock absorber 8 to buffer again, thereby achieving the damping effect.

[0028] The implementation principle of the damping bushing for the chassis is as follows: the overlapping seat 6 is overlapped with the outer wall of the outer bushing 3, so that the buffer assembly penetrates into the inner side of the outer bushing 3, at the same time, the clamping plate 17 also slides into the extension groove, then the clamping plate 17 is buckled to drive the movable rod 14 and the reset plate 15 to slide, and the two groups of connecting springs 16 are extruded to retract, after the clamping plate 17 is pushed into the pressing groove, the positioning block 22 on the clamping plate 17 is also clamped with the positioning groove, the clamping plate 17 on the movable rod 14 is rotated to the transverse direction by twisting the pull ring, the rotating disc 21 is also rotated, then the clamping plate 17 and the abutting plate 24 are contacted by continuing to push, the inclined surface is also fitted, the abutting plate 24 is extruded to retract to the inner side of the abutting groove by the second spring, so that the two groups of second linkage plates 19 are deflected with the rotating rod 23, so that the torsional spring is retracted, after the clamping plate 17 and the abutting plate 24 are completely staggered, the abutting plate 24 can be popped out again by the second spring, at this time, the pull ring is loosened back, the clamping plate 17 is moved back, the protruding end of the clamping plate 17 is clamped into the groove, then the pull ring is stretched, and the clamping plate 17 is hung on the recess of the hanging rod 25 after being deflected, so that the positioning of the buffer assembly is realized, when the buffer assembly needs to be maintained, the pull ring can be taken off the hanging rod 25, and the clamping plate 17 is rotated to the longitudinal direction after the clamping plate 17 is rotated to the longitudinal direction by rotating the movable rod 14, then the clamping plate 17 is pulled out along the port of the extension groove, and the buffer assembly and the overlapping seat 6 are taken out together, so that the staff can maintain in time, when the inner bushing 4 is impacted and vibrated, the limiting block 5 and the limiting groove are moved and the supporting plate 13 is extruded, the first connecting plate 12 is deflected and stretched, so that the sliding block 10 extrudes the second spring damper 11 and the second rubber column to preliminarily dampen and buffer, at the same time, the buffer seat 9 is also moved downward, and the first rubber column 7 and the first spring damper 8 are extruded to buffer again, so that the damping effect is achieved.

[0029] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A damping bushing for a chassis, comprising a bushing body (1), characterized in that: The bottom end of the bushing body (1) is mounted on the chassis (2), the bushing body (1) comprises an outer bushing (3) and an inner bushing (4), the inner bushing (4) is slidably connected to the inner side of the outer bushing (3), the inner wall of the outer bushing (3) is provided with a limiting groove on both sides, the outer wall of the inner bushing (4) is provided with a limiting block (5) slidably connected with the limiting groove on both sides, the inner bushing (4) and the outer bushing (3) are provided with a buffer positioning mechanism, the buffer positioning mechanism comprises a buffer assembly and a positioning assembly, the buffer assembly is used for buffering and damping the bushing body (1), and the positioning assembly is used for assembling the buffer assembly.

2. A vibration damping bushing for a chassis according to claim 1, characterized in that: The buffer assembly comprises a lap joint seat (6) lapped on one side of the outer wall of the outer bushing (3), the top of the lap joint seat (6) is provided with a first rubber column (7) at both ends, the top of the lap joint seat (6) is provided with a first spring damping shock absorber (8) between the two groups of first rubber columns (7), and the top of the first spring damping shock absorber (8) and the two groups of first rubber columns (7) is provided with a buffer seat (9).

3. A vibration damping bushing for a chassis according to claim 2, characterized in that: The inner wall of the buffer seat (9) is provided with a synchronous groove at both ends, the inner wall of the synchronous groove is slidably connected with a sliding block (10) on both sides, the inner wall of the sliding block (10) is provided with a second rubber column at the other end, the second spring damping shock absorber (11) is installed between the sliding block (10) and the second rubber column, and the sliding block (10) is rotatably connected with a first connecting plate (12) on one side, the other end of the two groups of first connecting plates (12) is rotatably connected with a supporting plate (13), and one side of the supporting plate (13) is attached to one side of the inner bushing (4).

4. A vibration damping bushing for a chassis according to claim 3, characterized in that: The positioning assembly comprises a movable rod (14) slidably connected to one end of the inside of the lap joint seat (6), the outside of the movable rod (14) is provided with a reset slot in the inside of the lap joint seat (6), the reset slot is slidably connected with a reset plate (15) on the inside, the reset plate (15) is rotatably connected with the movable rod (14), the other side of the outer wall of the outer bushing (3) is provided with an extension slot, one end of the movable rod (14) is provided with a clamping plate (17), and the clamping plate (17) is slidably connected with the extension slot.

5. A vibration damping bushing for a chassis according to claim 4, characterized in that: The inside of the outer bushing (3) is provided with a pressing groove on one side of the extension slot, a first linkage plate (18) is installed at one end of the inside of the pressing groove, the two sides of the first linkage plate (18) are rotatably connected with a rotating rod (23), the outer wall of the rotating rod (23) is fixedly sleeved with a second linkage plate (19), one side of the other end of the second linkage plate (19) is rotatably connected with a third linkage plate, one side of the third linkage plate is lapped with a fixed disc, one side of the fixed disc is provided with a sliding groove (20), one side of the third linkage plate is provided with a sliding block slidably connected with the sliding groove (20), the side section of the sliding groove (20) and the sliding block is T-shaped, and a torsional spring is installed between the outer wall of the rotating rod (23) and the first linkage plate (18).

6. A vibration damping bushing for a chassis according to claim 5, characterized in that: The other side of the fixed disc is rotationally connected with a rotating disc (21), one side of the rotating disc (21) is provided with a positioning groove, one side of the clamping plate (17) is provided with a positioning block (22) which is in sliding connection with the positioning groove.

7. A vibration damping bushing for a chassis according to claim 6, characterized in that: The inner wall of the pressing groove is provided with an abutting groove on both sides, the abutting plate (24) is in sliding connection with the inner side of the abutting groove, the second spring is installed between the abutting plate (24) and the inner wall of the abutting groove, the one side of the abutting plate (24) is provided with a groove, one end of the clamping plate (17) is in sliding connection with the groove, the opposite ends of the abutting plate (24) and the clamping plate (17) are provided with corresponding inclined surfaces, the other end of the movable rod (14) is rotationally connected with a pull ring, the pull ring is made of rubber material, one side of the outer wall of the overlapping seat (6) located on one side of the movable rod (14) is provided with a hanging rod (25), the side section of the hanging rod (25) is in the shape of a hook.

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