DE202023104658U1 - Damping and buffering device structure - Google Patents

Abstract

Damping and buffering device structure, characterized in that it comprises a shaft core (1), a transmission axle bushing (2), a damper (3), a spring (4), a first liner (5) and a second liner (6), wherein the damper (3) is inserted into the first liner (5) and the shaft core (1), a transmission axle bushing (2) and a spring (4) are inserted into the second liner (6);
wherein the shaft core (1) is solidly cylindrical, the front wall of the shaft core (1) being provided with a spiral groove (11), the rear wall being provided with a limiting tooth (12) along the ring;
wherein the transmission axle bushing (2) comprises a connecting portion (21) disposed at the front end and a limiting portion (22) at the rear end, the connecting portion (21) extending to the outside of the second casing (6) and at the rear End of the first casing pipe (5) is inserted, the boundary section (22) having a hollow structure and the wall of the boundary section (22) is provided with a round hole (23), the round hole (23) being provided with a steel ball (24). and the steel ball (24) slidably cooperates with the spiral groove (11) so that the shaft core (1) is rotatable in the axial direction on the inside of the limiting portion (22);
wherein the damper (3) is provided in the first liner (5), the projecting end of the damper (3) passing through the connecting section (21) of the transmission axle bushing (2) and pressing against the front of the shaft core (1), so that the damper (3) acts on the shaft core (1);
wherein the spring (4) is provided in the second liner (6) and the spring (4) acts on the shaft core (1);
wherein the second liner (6) limits the movement of the steel ball (24) within the round hole (23), the inner wall of the second liner (6) having a Tooth gap (60) is provided, which engages with the limiting teeth (12), so that the shaft core (1) is axially movable within the tooth gap (60) through the limiting teeth (12).

Description

Technical area

The utility model relates to the technical field of buffer devices, in particular to a damping and buffer device structure

Background technology

A damping buffer used to dissipate impact energy is the more common hydraulic damping buffer. Its working principle is: When the hydraulic damping buffer is subjected to an impact force, the piston in the buffer is pushed to move, and at the same time, the oil in the buffer chamber is pushed out of the throttle opening and enters another chamber. At this time, the friction between the throttle opening and the oil and the internal friction between the oil molecules form a damping force on the shock load, thus acting as a buffer; When the hydraulic damping buffer is subjected to the shock load, the built-in oil circuit of the buffer forms a large oil pressure in the cavity, so it needs to be sealed, which not only the processing technology is complex and the production cost is high, but the hydraulic damping buffer has a short due to structural limitations lifespan, making maintenance difficult and difficult to replace important parts.

Content of the utility model

The purpose of the utility model is to provide a damping buffer device structure that has solved the problems raised in the background art above.

To achieve the above purpose, the utility model provides the following technical solution: A damping and buffering device structure, characterized in that it includes a shaft core, a transmission axle bushing, a damper, a spring, a first liner and a second liner, the damper is inserted into the first liner and the shaft core, a transmission axle bushing and a spring are inserted into the second liner;
wherein the shaft core is solid cylindrical, the front wall of the shaft core being provided with a spiral groove, the rear wall being provided with a limiting tooth along the ring;
wherein the transmission axle bushing includes a connecting portion disposed at the front end and a limiting portion at the rear end, the connecting portion extending to the outside of the second casing and inserted at the rear end of the first casing, the limiting portion having a hollow structure and the wall of the limiting portion is provided with a round hole, the round hole is provided with a steel ball, and the steel ball slidably cooperates with the spiral groove so that the shaft core is rotatable in the axial direction on the inside of the limiting portion;
wherein the damper is provided in the first casing, the projecting end of the damper passing through the connecting portion of the transmission sleeve and pressing against the front of the shaft core so that the damper acts on the shaft core;
wherein the spring is provided in the second casing and the spring acts on the shaft core;
wherein the second casing limits the movement of the steel ball within the round hole, the inner wall of the second casing being provided with a tooth gap which engages with the limiting teeth so that the shaft core is axially movable within the tooth gap by the limiting teeth.

It further comprises a planar bearing, the planar bearing being placed on the connecting section of the transmission axle bushing, with the second casing tube being provided on the inside at the end with a receiving groove for attaching the planar bearing, the planar bearing being pressed against the first casing tube.

Furthermore, it further comprises a spacer, the spacer being placed on the connecting section of the transmission axle bushing, one end surface of the spacer being supported with the planar bearing and the other end surface being supported with the first casing tube.

Furthermore, a first adjusting element is screwed into the end of the first casing, the first adjusting element being supported against the end of the damper remote from the shaft core.

Furthermore, a second adjustment element is screwed into the end portion of the second casing, the second adjustment element being pressed against the end of the spring away from the shaft core.

Further, the first casing and the second casing are provided with a wedge pattern on the outer wall surface.

Compared with the prior art, the advantageous effect of the utility model is as follows: By combining the spiral groove on the front wall of the shaft core with the steel ball in the limiting section of the transmission axle bushing as a rotating lifting mechanism, the two are Ends of the rotating lifting mechanism each provided with a damper and a spring; When the shaft core rises axially, the spring is pushed and compressed to store energy, and when the stored spring energy is released, the shaft core is pushed back in the axial direction; the damper partially acts against part of the compressed spring energy, which is applied to the shaft core, so that the shaft core moves slowly; This kind of damping and buffering device adopts the structure of an independent damper, which has both a simple internal structure and is convenient for the maintenance work in the later stage.

Illustration of the accompanying drawings

• 1 shows a schematic representation of the present utility model in an exploded view.
• 2 shows a schematic representation of the assembly of the utility model.
• 3 shows a schematic representation of the entire area of the utility model of the present utility model in cross section.
• 4 shows a schematic representation of the assembly of the shaft core and the transmission axle bushing in the utility model.
• 5 shows a schematic representation of the assembly of the second casing and the transmission axle bushing in the utility model.

Specific Embodiments

Now the technical solutions in the embodiments of the utility model are clearly and completely described below in connection with the attached drawings in the embodiments of the utility model.

A damping and buffering device structure as in 1 until 5 that it includes a shaft core 1, a transmission axle bushing 2, a damper 3, a spring 4, a first liner 5 and a second liner 6, the first liner 5 and the second liner 6 being arranged in the same axis and as a driving part with the two connecting portions of a joint each connected by a wedge pattern on an outer wall surface, the damper 3 being inserted into the first liner 5 and the shaft core 1, a transmission axle bushing 2 and a spring 4 being inserted into the second liner 6;

The transmission axle bushing 2 includes a connecting portion 21 disposed at the front end and a limiting portion 22 at the rear end, wherein the connecting portion 21 of the transmission axle bushing 2 is inserted at the rear end of the first casing 5 when the first casing 5 is fitted and rotated , it drives the transmission axle bushing 2 to rotate, and there is a steel ball 24 placed in the round hole 23 of the limiting portion 22 of the transmission axle bushing 2, and there is a spiral groove 11 inserted on the front wall surface of the shaft core 1, and the spiral groove 11 of the shaft core 1 is limited by the steel ball 24 to rise axially to rotation so that the shaft core 1 and the spring 4 in the second casing 6 shifts so that the spring 4 is compressed to store energy, and when the Spring 4 releases the stored energy, it pushes the shaft core 1 back to fall downward in the axial direction;

Limiting teeth 12 are arranged in a ring on the rear wall of the shaft core 1 and the inner wall of the second casing 6 is provided with a tooth gap 60 on limiting teeth 12. The shaft core 1 interacts with the tooth gap 60 via limiting teeth 12 in order to move it axially up and down. When the second casing 6 is shod and rotated, it also drives the shaft core 1 to rotate. When the shaft core 1 rotates, the spiral groove 11 on the front wall of the shaft core is limited by the steel ball 24 on the transmission axle bushing 2, so that it rotates and rises axially, the spring 4 is pressed in the same way as above, causing the spring 4 compresses and stores energy.

The shaft core 1 will be a solid cylindrical structure, the one-piece structure is easier to produce and cheaper to manufacture than the traditional structure.

The projecting end of the damper 3 passes through the connecting portion 21 of the transmission axle bushing 2 and presses against the front of the shaft core 1, when the spring 4 releases the stored energy, it pushes the shaft core 1 back to fall downward in the axial direction; the damper 3 partially acts against part of the compressed spring energy, which acts on the shaft core 1, so that the shaft core 1 slowly sinks.

The second casing 6 restricts the movement of the steel ball 24 in the round hole 23.

The connecting section 21 of the transmission axle bushing 2 is provided with a flat bearing 7 and a spacer 8, and the flat bearing 7 is provided in a receiving groove on the inside of the second casing 6, and the spacer 8 is provided outside the end portion of the second casing 6, and the second casing 6 is rotatably connected to the spacer 8 through the planar bearing 7 so that the spacer 8 rotates together with the first casing 5, when the first casing 5 is rotated, the plan bearing 7 reduces the friction between the first casing 5 and the second casing 6.

A first adjusting element 101 is screwed into the end section of the first casing tube 5, the first adjusting element 101 being pressed against the damper 3, so that the damping strength of the damper 3 can be adjusted with the first adjusting element 101, and in the end section of the second casing tube 6 there is a second adjusting element 102 is screwed in, which is pressed against the spring 4, so that the rotational strength of the shaft core 1 can be adjusted with the second adjusting element 102.

Although embodiments of the utility model have been illustrated and described, those skilled in the art will understand that a variety of variations, modifications, substitutions and alterations to these embodiments are possible without departing from the principle and spirit of the utility model, the scope of which is defined by the appended claims and their correspondences are limited.

Reference symbol list-.

1

wave core

11

Spiral groove

12

Limiting teeth

2

Transmission axle bushing

21

connection section

22

Boundary section

23

Round hole

24

Steel ball

3

mute

4

Feather

5

first casing

6

and second casing

60

gap in teeth

7

Plan storage

8th

Spacers

101

first setting element

102

second adjustment element

Claims (6)

Damping and buffering device structure, characterized in that it comprises a shaft core (1), a transmission axle bushing (2), a damper (3), a spring (4), a first liner (5) and a second liner (6), wherein the damper (3) is inserted into the first liner (5) and the shaft core (1), a transmission axle bushing (2) and a spring (4) are inserted into the second liner (6); wherein the shaft core (1) is solidly cylindrical, the front wall of the shaft core (1) being provided with a spiral groove (11), the rear wall being provided with a limiting tooth (12) along the ring; wherein the transmission axle bushing (2) comprises a connecting portion (21) disposed at the front end and a limiting portion (22) at the rear end, the connecting portion (21) extending to the outside of the second casing (6) and at the rear End of the first casing pipe (5) is inserted, the boundary section (22) having a hollow structure and the wall of the boundary section (22) is provided with a round hole (23), the round hole (23) being provided with a steel ball (24). and the steel ball (24) slidably cooperates with the spiral groove (11) so that the shaft core (1) is rotatable in the axial direction on the inside of the limiting portion (22); wherein the damper (3) is provided in the first liner (5), the projecting end of the damper (3) passing through the connecting section (21) of the transmission axle bushing (2) and pressing against the front of the shaft core (1), so that the damper (3) acts on the shaft core (1); wherein the spring (4) is provided in the second liner (6) and the spring (4) acts on the shaft core (1); wherein the second liner (6) limits the movement of the steel ball (24) within the round hole (23), the inner wall of the second liner (6) being provided with a tooth gap (60) which engages with the limiting teeth (12). , so that the shaft core (1) is axially movable within the tooth gap (60) through the limiting teeth (12). Damping and buffering device structure Claim 1 , characterized in that it further comprises a planar bearing (7), the planar bearing (7) being placed on the connecting section (21) of the transmission axle bushing (2), the second casing tube (6) having a receiving groove on the inside at the end for attachment of the planned warehouse (7) is provided, with the plan bearing (7) being pressed against the first casing (5). Damping and buffering device structure Claim 1 , characterized in that it further comprises a spacer (8), the spacer (8) being placed on the connecting section (21) of the transmission axle bushing (2), an end surface of the spacer (8) being connected to the planar bearing (7) and the other end surface is supported by the first casing pipe (5). Damping and buffering device structure Claim 1 , characterized in that a first adjusting element (101) is screwed into the end of the first casing tube (5), the first adjusting element (101) being supported against the end of the damper (3) remote from the shaft core (1). Damping and buffering device structure Claim 1 , characterized in that a second adjusting element (102) is screwed into the end portion of the second casing (6), the second adjusting element (102) being pressed against the end of the spring (4) away from the shaft core (1). Damping and buffering device structure Claim 1 , characterized in that the first casing (5) and the second casing (6) are provided with a wedge pattern on the outer wall surface.

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