A shock absorber dismounting device

Abstract

The shock absorber dismounting device belongs to the field of shock absorber maintenance and dismounting device for rail vehicle bogies, and comprises a linear guide rail mechanism, a double rack positioning clamp plate, a monorail sliding block mechanism, a rack end node positioning mechanism and a sliding end node positioning mechanism, wherein the linear guide rail mechanism comprises a vertical plate guide rail seat, a driving cylinder, a double guide rail of the driving cylinder, a driving piston mechanism and a driving sliding block. The shock absorber dismounting device can flexibly match the standard length and the thick and thin size of shock absorbers of different vehicle models and types, well adapts to the complex situation that the stuck lengths of shock absorbers caused by aging and deformation are different, is not affected by the insufficient friction force of the outer wall of the shock absorber cylinder caused by oil leakage, and can be easily installed in a narrow space under the vehicle, so that the operator can easily separate and remove the piston rod from the piston cylinder, thereby saving manpower and material resources, significantly shortening the maintenance period, improving the production efficiency, generating cost benefits and economic value.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of maintenance and disassembly device for shock absorber of rail vehicle bogie, and particularly relates to a shock absorber disassembly device. BACKGROUND

[0002] The basic structure of the hydraulic shock absorber 1 is shown in Figure 1 The end of the shock absorber piston cylinder 1-2 is fixedly connected with a shock absorber rubber node 1-3, the end of the shock absorber piston rod 1-1 is fixedly connected with another shock absorber rubber node 1-3, and the other end of the shock absorber piston rod 1-1 is coaxially inserted into the shock absorber piston cylinder 1-2 and is in sliding connection with the shock absorber piston cylinder 1-2. The middle section of the metal connecting rod 1-3-1 of the shock absorber rubber node 1-3 is fixedly connected with the node shaft seat 1-3-2 through rubber vulcanization.

[0003] The bogie of the rail train is provided with various piston type damping components such as lateral shock absorbers, vertical shock absorbers, anti-snaking shock absorbers, etc. These shock absorber components are relatively easy to install and debug before the preliminary installation of the bogie. However, once the bogie is combined with the car, most of the shock absorbers are blocked and closed in a relatively narrow space, and the disassembly process is limited by the space structure. Especially for the maintenance train after long-term operation, some shock absorber components have appeared aging, deformation, and even exist dead and oil leakage phenomenon, so that the operator is difficult to manually separate and disassemble the piston rod from the piston cylinder.

[0004] On the other hand, the shock absorbers of different models and different types are different in length, thickness, width and size, and the damping strength and damage state of the piston are also different, resulting in great difficulty in disassembling some shock absorbers, and even only relying on manpower cannot be completed, thereby causing additional waste of manpower and material resources, prolonging the maintenance cycle and affecting production efficiency. SUMMARY

[0005] In order to solve the technical problems that the piston type shock absorber of the existing rail train bogie is blocked and closed in a relatively narrow space after the train is off, the disassembly process is limited by the space structure, especially for the maintenance train after long-term operation, some shock absorber components have appeared aging, deformation, and even exist dead and oil leakage phenomenon, so that the operator is difficult to manually separate and disassemble the piston rod with insufficient friction force from the piston cylinder, and the shock absorbers of different models and different types are different in length, thickness, width and size, and the damping strength and damage state of the piston are also different, resulting in great difficulty in disassembling some shock absorbers, and even only relying on manpower cannot be completed, thereby causing additional waste of manpower and material resources, prolonging the maintenance cycle and affecting production efficiency, the present application provides a shock absorber disassembly device.

[0006] The technical scheme adopted by the present application to solve the technical problems is as follows:

[0007] The shock absorber dismounting device comprises a linear guide rail mechanism, a double rack positioning clamp plate, a single rail slider mechanism, a rack end node positioning mechanism and a sliding end node positioning mechanism, the linear guide rail mechanism comprises a vertical plate guide rail seat, a driving cylinder, a driving cylinder double guide rail, a driving piston mechanism and a driving slider, the driving cylinder and the driving cylinder double guide rail are fixedly connected to the same side wall end surface of the vertical plate guide rail seat, the driving slider is fixedly connected to the end of the driving piston rod of the driving piston mechanism, and the piston of the driving piston mechanism is in sliding connection with the driving cylinder; the driving slider is in sliding connection with the driving cylinder double guide rail through a sliding groove; the double rack positioning clamp plate comprises two rectangular tooth groove racks, and the two racks are fixedly connected to the upper and lower side walls of the driving cylinder; the single rail slider mechanism comprises a single rail and a single rail slider which are in sliding connection with each other, the single rail is fixedly connected to the upper end surface of one rack and is parallel to the driving cylinder double guide rail; the upper end of the rack end node positioning mechanism is in sliding connection with the single rail slider through the single rail slider; the lower end of the rack end node positioning mechanism is detachably embedded into the rectangular tooth groove on the rack through a clamping block; and the sliding end node positioning mechanism is fixedly connected to the driving slider.

[0008] The rack end node positioning mechanism comprises an L-shaped connecting plate, a double-column positioning seat, a single rail slider connecting shaft seat and two tooth groove embedding blocks, the L-shaped connecting plate is an inverted letter L shape, the end of the L-shaped horizontal segment of the L-shaped connecting plate is in shaft connection with the single rail slider connecting shaft seat through a cantilever shaft seat, the double-column positioning seat and the two tooth groove embedding blocks are fixedly connected to the front and rear end surfaces of the L-shaped vertical segment of the L-shaped connecting plate, and the two tooth groove embedding blocks and the cantilever shaft seat are located on one side of the right angle of the L-shaped connecting plate.

[0009] The distance L1 between the inner legs of the two columns of the double-column positioning seat is less than the length of the metal connecting rod and greater than the axial thickness of the node shaft seat.

[0010] The sliding end node positioning mechanism comprises a slider connecting base and a metal connecting rod double-column stopper, the metal connecting rod double-column stopper is fixedly connected to the driving slider through the slider connecting base; the distance L1 between the two stopper columns of the metal connecting rod double-column stopper is less than the length of the metal connecting rod and greater than the axial thickness of the node shaft seat.

[0011] The distance between the two tooth groove embedding blocks is the same as the distance between the double rack positioning clamp plate, the two tooth groove embedding blocks are rectangular and match the size of the rectangular tooth groove on the rack, and the two tooth groove embedding blocks can be embedded into the same group of tooth grooves of the upper and lower racks of the double rack positioning clamp plate, respectively.

[0012] The beneficial effects of the present application are that the shock absorber dismounting device installs a linear guide rail mechanism on a vertical plate guide rail seat so as to make it easier to insert into a relatively narrow maintenance operation space of a train bogie. The structure design of the double-column positioning seat and the metal connecting rod double-column stop makes it possible to match various models and different sizes of shock absorber rubber nodes. The monorail parallel to the driving cylinder double guide rail and the rack is fixed on the upper end surface of the rack. The L-shaped connecting plate with the function of turning upside down is connected with the monorail sliding block through the monorail sliding block, and the two tooth grooves can be embedded into the same group of tooth grooves of the upper and lower two racks of the double-rack positioning clamp plate, respectively. The structure setting makes the rack end node positioning mechanism horizontally slide along the direction of the driving cylinder double guide rail to match the actual length of various models of hydraulic shock absorbers, and conveniently and flexibly re-mount the shock absorber rubber nodes at the front and rear ends of the hydraulic shock absorber on the linear guide rail mechanism, and then realize the smooth dismounting and separation of the shock absorber components by using the mechanical power of the linear guide rail mechanism.

[0013] The shock absorber dismounting device of the present application can flexibly match the standard length and size of shock absorbers of different vehicle models and types, well adapt to the complex situation that the stuck lengths of shock absorbers caused by aging and deformation are different, and is completely not affected by the insufficient friction force of the outer wall of the shock absorber cylinder caused by oil leakage, and can be easily installed in the narrow space under the vehicle, so that the operator can easily separate the piston rod from the piston cylinder, thereby saving manpower and material resources, significantly shortening the maintenance period, improving production efficiency, generating cost benefits and economic value.

[0014] In addition, the shock absorber dismounting device also has the advantages of simple and practical structure, convenient operation, low cost, and easy popularization. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the existing hydraulic shock absorber 1;

[0016] Figure 2 is a schematic diagram of the three-dimensional structure of the shock absorber dismounting device of the present application;

[0017] Figure 3 is an exploded assembly view of the shock absorber dismounting device of the present application;

[0018] Figure 4 is a schematic diagram of the three-dimensional structure of the shock absorber dismounting device of the present application from another perspective;

[0019] Figure 5 is an assembly view of the double-rack positioning clamp plate and the monorail sliding block mechanism of the present application;

[0020] Figure 6 is a schematic diagram of the three-dimensional structure of the rack end node positioning mechanism of the present application;

[0021] Figure 7 is a perspective view of the rack end node positioning mechanism of the present application from another perspective;

[0022] Figure 8 is a side view of the rack end node positioning mechanism of the present application;

[0023] Figure 9 is a perspective view of the sliding end node positioning mechanism of the present application;

[0024] Figure 10 is an application schematic view of the shock absorber dismounting device of the present application;

[0025] Figure 11 is Figure 10 a top view. DETAILED DESCRIPTION

[0026] The present application will be further described in detail below with reference to the accompanying drawings.

[0027] As shown in Figures 2 to 9 , the shock absorber dismounting device of the present application comprises a linear guide rail mechanism 2, a double rack positioning clamp plate 3, a single rail slider mechanism 4, a rack end node positioning mechanism 5 and a sliding end node positioning mechanism 6, the linear guide rail mechanism 2 comprises a vertical plate guide rail seat 2-1, a driving cylinder 2-2, a driving cylinder double guide rail 2-3, a driving piston mechanism 2-4 and a driving slider 2-5, the driving cylinder 2-2 and the driving cylinder double guide rail 2-3 are both fixedly connected to the same side wall end face of the vertical plate guide rail seat 2-1, the driving slider 2-5 is fixedly connected to the end of the driving piston rod of the driving piston mechanism 2-4, and the piston of the driving piston mechanism 2-4 is in sliding connection with the driving cylinder 2-2; the driving slider 2-5 is in sliding connection with the driving cylinder double guide rail 2-3 through a sliding groove; the double rack positioning clamp plate 3 comprises two rectangular toothed rack 3-1, and the two toothed racks 3-1 are respectively fixedly connected to the upper and lower side walls of the driving cylinder 2-2; the single rail slider mechanism 4 comprises a single rail 4-1 and a single rail slider 4-2 which are in sliding connection with each other, the single rail 4-1 is fixedly connected to the upper end face of one toothed rack 3-1 and is parallel to the driving cylinder double guide rail 2-3; the upper end of the rack end node positioning mechanism 5 is in sliding connection with the single rail 4-1 through the single rail slider 4-2; the lower end of the rack end node positioning mechanism 5 is in separable form embedded into the rectangular toothed slot on the toothed rack 3-1 through a clamping block; the sliding end node positioning mechanism 6 is fixedly connected to the driving slider 2-5.

[0028] The rack end node positioning mechanism 5 comprises an L-shaped connecting plate 5-1, a double-column positioning seat 5-2, a monorail slider connecting shaft seat 5-3 and two tooth groove inserts 5-4, the L-shaped connecting plate 5-1 is an inverted letter L-shaped, the end of the L-shaped horizontal section is connected with the monorail slider connecting shaft seat 5-3 through a cantilever shaft seat 5-1-1, the double-column positioning seat 5-2 and the two tooth groove inserts 5-4 are fixedly connected to the front and rear end faces of the L-shaped vertical section of the L-shaped connecting plate 5-1, wherein the two tooth groove inserts 5-4 and the cantilever shaft seat 5-1-1 are located on the side where the right angle of the L-shaped connecting plate 5-1 is located.

[0029] The inner distance between the two columns 5-2-1 of the double-column positioning seat 5-2 is less than the length of the metal connecting rod 1-3-1 and greater than the axial thickness of the node shaft seat 1-3-2.

[0030] The sliding end node positioning mechanism 6 comprises a slider connecting base 6-1 and a metal connecting rod double-column stopper 6-2, the metal connecting rod double-column stopper 6-2 is fixedly connected with the driving slider 2-5 through the slider connecting base 6-1, the distance between the two stopper columns of the metal connecting rod double-column stopper 6-2 is less than the length of the metal connecting rod 1-3-1 and greater than the axial thickness of the node shaft seat 1-3-2.

[0031] The distance between the two tooth groove inserts 5-4 is the same as the distance between the double-rack positioning clamping plates 3, the tooth groove inserts 5-4 are rectangular and their size matches the size of the rectangular tooth grooves on the racks 3-1, and the two tooth groove inserts 5-4 can be respectively embedded into the same group of tooth grooves of the upper and lower racks 3-1 of the double-rack positioning clamping plates 3.

[0032] The linear guide mechanism 2 can be a gas source driven, hydraulic driven or electric linear guide.

[0033] When the shock absorber dismounting device is applied, for example, Figure 10 and Figure 11As shown, first, one shock absorber rubber node 1-3 fixed with the end of the shock absorber piston oil cylinder 1-2 is arranged near the sliding end node positioning mechanism 6, so that the node shaft seat 1-3-2 metal is located between the inner legs of the connecting rod double column stop 6-2, and the two ends of the metal connecting rod 1-3-1 are respectively stopped and positioned by the connecting rod double column stop 6-2. Then, the rack end node positioning mechanism 5 is flipped up around its cantilever shaft seat 5-1-1, and then the position of the monorail slider 4-2 on the monorail 4-1 is adjusted, so that the monorail slider 4-2 drives the rack end node positioning mechanism 5 to move horizontally until the distance between the tooth slot block 5-4 and the metal connecting rod double column stop 6-2 is slightly lower than the distance between the two shock absorber rubber nodes 1-3 on the hydraulic shock absorber 1. Then, the rack end node positioning mechanism 5 is flipped down again and one shock absorber rubber node 1-3 fixed with the end of the shock absorber piston rod 1-1 is clamped by the double column positioning seat 5-2. Next, the two tooth slot blocks 5-4 are reinserted into the corresponding set of rectangular tooth grooves on the two racks 3-1, respectively. Finally, the linear guide mechanism 2 is started, so that the driving slider 2-5 drives the sliding end node positioning mechanism 6 away from the driving cylinder 2-2, while the rack end node positioning mechanism 5 remains relatively stationary with the linear guide mechanism 2 under the action of the double rack positioning clamp plate 3, so that the double column positioning seat 5-2 and the metal connecting rod double column stop 6-2 with continuously expanding distance make the two shock absorber rubber nodes 1-3 of the hydraulic shock absorber 1 move away from each other, and then the shock absorber piston rod 1-1 is separated from the shock absorber piston oil cylinder 1-2.

Claims

1. A shock absorber disassembly device, characterized in that: The device includes a linear guide mechanism (2), a double rack positioning clamp (3), a single rail slider mechanism (4), a rack end node positioning mechanism (5), and a sliding end node positioning mechanism (6). The linear guide mechanism (2) includes a vertical plate guide rail seat (2-1), a drive cylinder (2-2), a double drive cylinder guide rail (2-3), a drive piston mechanism (2-4), and a drive slider (2-5). The drive cylinder (2-2) and the double drive cylinder guide rail (2-3) are both fixedly connected to the same side wall end face of the vertical plate guide rail seat (2-1). The drive slider (2-5) is fixedly connected to the end of the drive piston rod on the drive piston mechanism (2-4). The piston on the drive piston mechanism (2-4) is slidably connected to the drive cylinder (2-2). The drive slider (2-5) is connected to the double drive cylinder guide rail through a sliding groove. The rail (2-3) is slidably connected; the double rack positioning clamp (3) includes two rectangular toothed racks (3-1), which are fixedly connected to the upper and lower side walls of the drive cylinder (2-2); the single rail slider mechanism (4) includes a single rail (4-1) and a single rail slider (4-2) that are slidably connected to each other, the single rail (4-1) is fixedly connected to the upper end surface of a rack (3-1) and parallel to the double guide rail (2-3) of the drive cylinder; the upper end of the rack end node positioning mechanism (5) is slidably connected to the single rail (4-1) through the single rail slider (4-2); the lower end of the rack end node positioning mechanism (5) is embedded into the rectangular toothed groove on the rack (3-1) in a separable form through a locking block; the sliding end node positioning mechanism (6) is fixedly connected to the drive slider (2-5).

2. The shock absorber disassembly device as described in claim 1, characterized in that: The rack end node positioning mechanism (5) includes an L-shaped connecting plate (5-1), a double-column positioning seat (5-2), a single-rail slider connecting shaft seat (5-3), and two toothed inserts (5-4). The L-shaped connecting plate (5-1) is an inverted letter L-shape, and the end of its horizontal L-shaped section is axially connected to the single-rail slider connecting shaft seat (5-3) through a cantilever shaft seat (5-1-1). The double-column positioning seat (5-2) and the two toothed inserts (5-4) are respectively fixed on the front and rear end faces of the vertical L-shaped section on the L-shaped connecting plate (5-1). The two toothed inserts (5-4) and the cantilever shaft seat (5-1-1) are all located on the side where the right angle of the L-shaped connecting plate (5-1) is located.

3. The shock absorber disassembly device as described in claim 2, characterized in that: The distance L1 between the inner crotch of the two columns (5-2-1) on the double column positioning seat (5-2) is less than the length of the metal connecting rod (1-3-1) and greater than the axial thickness of the node shaft seat (1-3-2).

4. The shock absorber disassembly device as described in claim 3, characterized in that: The sliding end node positioning mechanism (6) includes a slider connecting base (6-1) and a metal connecting rod double column stop (6-2). The metal connecting rod double column stop (6-2) is fixedly connected to the driving slider (2-5) through the slider connecting base (6-1). The distance L1 between the two stop columns on the metal connecting rod double column stop (6-2) is less than the length of the metal connecting rod (1-3-1) and greater than the axial thickness of the node shaft seat (1-3-2).

5. The shock absorber disassembly device as described in claim 2, characterized in that: The spacing between the two toothed inserts (5-4) is the same as the spacing between the double rack positioning plate (3). The toothed inserts (5-4) are rectangular and their dimensions match the dimensions of the rectangular toothed grooves on the rack (3-1). The two toothed inserts (5-4) can be embedded into the same set of toothed grooves on the upper and lower racks (3-1) of the double rack positioning plate (3), respectively.

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