TWM650462U - Damping buffer device structure - Google Patents

Abstract

The invention discloses a damping and buffering device structure, which includes a shaft core, a transmission sleeve, a damper, a spring, a first sleeve and a second sleeve. The damper is arranged in the first sleeve, and the shaft core, The transmission shaft sleeve and the spring are arranged in the second sleeve. The shaft core is solid cylindrical. The transmission shaft sleeve includes a connecting part at the front end and a limiting part at the rear end. The shaft core rotates in the axial direction inside the limiting part. When the core rotates in the axial direction, the spring is pushed to compress and store energy. When the spring energy is released, the shaft core is pushed back to move in the axial direction. The damper offsets part of the compression energy stored by the spring on the shaft core, causing the shaft core to move slowly; This kind of damping and buffering device adopts an independent damper structure. The internal structure is not only simple, but also convenient for later maintenance work.

Description

Damping buffer device structure

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

Damping buffers are used to consume impact energy. The more common ones are hydraulic damping buffers. Its working principle is: when the hydraulic damping buffer receives an impact force, it pushes the piston in the buffer to move, and at the same time, the oil in the buffer cavity is squeezed out of the throttle port and enters another cavity. At this time, the throttle port The friction with the oil and the internal friction between the oil molecules form a damping force on the impact load and play a buffering role; when the hydraulic damping buffer is subjected to an impact load, a large amount of oil will be formed locally in the built-in oil circuit cavity of the buffer. pressure, so sealing is required. Not only is the processing technology complex and the production cost high, but due to structural limitations, the service life of the hydraulic damping buffer is short, making it difficult to repair and replace important parts.

The purpose of this creation is to provide a damping and buffering device structure that solves the problems raised in the above background art.

In order to achieve the above purpose, the present invention provides the following technical solution: a damping and buffering device structure, including a shaft core, a transmission sleeve, a damper, a spring, a first sleeve and a second sleeve, the damper being arranged on the first sleeve In the tube, the shaft core, transmission sleeve and spring are arranged in the second casing; The shaft core is solid cylindrical, and the front end wall of the shaft core is provided with a spiral groove, and the rear end wall is provided with limited teeth along an annular shape; The transmission shaft sleeve includes a connecting portion at the front end and a limiting portion at the rear end. The connecting portion extends to the outside of the second casing and is inserted into the rear end of the first casing. The limiting element is a hollow structure. , the wall surface of the limiting element is provided with a round hole, and steel balls are provided in the round hole, and the steel balls are slidably matched with the spiral groove, so that the shaft core rotates in the axial direction inside the limiting part; The damper is arranged in the first sleeve, and the extended end of the damper passes through the connecting portion of the transmission sleeve and contacts the front end surface of the shaft core, so that the damper acts on the shaft core; The spring is arranged in the second sleeve, and the spring exerts force on the shaft core; The second casing restricts the movement of the steel ball in the circular hole. The inner wall of the second casing is provided with tooth slots that mesh with the limiting teeth, so that the shaft core moves axially in the tooth slots through the limiting teeth.

Further, it also includes a plane bearing, the plane bearing sleeve is arranged on the connection part of the transmission shaft sleeve, an accommodating groove for installing the plane bearing is provided inside the end of the second sleeve, and the plane bearing and The first casing is abutted.

Further, it also includes a gasket, the gasket sleeve is arranged on the connecting part of the transmission shaft sleeve, one end surface of the gasket is in contact with the plane bearing, and the other end surface is in contact with the first sleeve.

Furthermore, a first adjusting member is threaded into the end of the first sleeve, and the first adjusting member is in contact with an end of the damper away from the axis core.

Furthermore, a second adjusting member is threaded into the end of the second sleeve, and the second adjusting member is in contact with an end of the spring away from the axis core.

Further, the outer wall surfaces of the first sleeve and the second sleeve are both provided with spline patterns.

Compared with the existing technology, the beneficial effect of this invention is that the spiral groove on the front end wall of the shaft core is matched with the steel balls on the limit part of the transmission shaft sleeve to form a rotating lifting mechanism, and both ends of the rotating lifting mechanism are respectively provided with dampers and springs. When the shaft core rises axially, it pushes the spring to compress and store energy. When the spring energy is released, it pushes the shaft core downward axially. The damper offsets part of the compression energy stored by the spring on the shaft core, causing the shaft core to move slowly; This kind of damping and buffering device adopts an independent damper structure. The internal structure is not only simple, but also convenient for later maintenance work.

The technical solution in this creative embodiment will be clearly and completely described below in conjunction with the accompanying drawings in this creative embodiment.

A damping and buffering device structure as shown in Figures 1 to 5 includes a shaft core 1, a transmission sleeve 2, a damper 3, a spring 4, a first sleeve 5 and a second sleeve 6. The first sleeve 5 and the second sleeve are The two sleeves 6 are coaxially arranged and serve as the driving part to connect to the two connecting parts of the hinge respectively through the splines on the outer wall. The damper 3 is arranged in the first sleeve 5. The transmission sleeve 2 and the shaft core 1 , the spring 4 is arranged in the second sleeve 6 in turn;

The transmission shaft sleeve 2 includes a connecting portion 21 at the front end and a limiting portion 22 at the rear end. The connecting portion 21 of the transmission shaft sleeve 2 is inserted into the rear end of the first sleeve 5. When the first sleeve 5 is rotated by force, it drives The transmission shaft sleeve 2 rotates, and steel balls 24 are placed in the circular holes 23 of the limiting portion 22 of the transmission shaft sleeve 2. The front end wall of the shaft core 1 is provided with a spiral groove 11. The spiral groove 11 of the shaft core 1 is limited by the steel balls 24 and moves along the axis. The shaft rotates upward in the axial direction, causing the shaft core 1 to push the spring 4 in the second sleeve 6, causing the spring 4 to compress and store energy. When the spring 4 stores energy and releases it, it pushes the shaft core 1 downward in the axial direction;

The rear end wall of the shaft core 1 is provided with limiting teeth 12 along the annular shape. The inner wall of the second sleeve 6 is provided with tooth slots 60 corresponding to the limiting teeth 12. The shaft core 1 cooperates with the tooth slots 60 through the limiting teeth 12 to make it along the axis. When the second sleeve 6 is rotated by force, it drives the shaft core 1 to rotate in the same way. When the shaft core 1 rotates, the spiral groove 11 on the front wall of the shaft core 1 is restricted by the steel balls 24 on the transmission sleeve 2 to rotate in the axial direction. Ascending, the spring 4 is pushed in the same way as above, causing the spring 4 to compress and store energy.

The shaft core 1 will adopt a solid cylindrical structure. Compared with the traditional structure, the one-piece structure is easier to produce and has lower manufacturing cost.

The extended end of the damper 3 passes through the connecting portion 21 of the transmission sleeve 2 and contacts the front end surface of the shaft core 1. When the energy stored in the spring 4 is released, it pushes the shaft core 1 downward in the axial direction, and the damper 3 offsets part of the shaft core. The core 1 is compressed and stored by the spring 4, so that the shaft core 1 can slowly rotate and descend.

The second sleeve 6 restricts the movement of the steel balls 24 in the circular hole 23 .

The connecting part 21 of the transmission shaft sleeve 2 is provided with a flat bearing 7 and a gasket 8, and the flat bearing 7 is arranged in the accommodation groove inside the second sleeve 6, and the gasket 8 is arranged at the end of the second sleeve 6 Externally, the second sleeve 6 is rotationally connected to the gasket 8 through the plane bearing 7. When the first sleeve 5 is rotated, the gasket 8 rotates synchronously with the first sleeve 5, and the plane bearing 7 reduces the first sleeve 5 and the gasket 8. friction between the second casing 6.

A first adjusting member 101 is threaded into the end of the first sleeve 5 . The first adjusting member 101 abuts the damper 3 so that the first adjusting member 101 can be used to adjust the damping strength of the damper 3 . The second sleeve 6 A second adjustment member 102 is threaded into the end of the spring 4 , and the second adjustment member 102 contacts the spring 4 so that the second adjustment member 102 can be used to adjust the rotation strength of the shaft core 1 .

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and changes can be made to these embodiments without departing from the principles and spirit of the invention. Variations, the scope of this creation is limited by the scope of the attached patent application and its equivalents.

1: Shaft core

11:Spiral groove

12:Limiting tooth

2: Transmission shaft sleeve

21:Connection part

22: Limiting part

23: round hole

24:Steel balls

3: Damper

4: spring

5: First casing

6:Second casing

60: alveolar

7:Plane bearing

8:Gasket

101: First adjustment piece

102: Second adjustment piece

Figure 1 is an explosion diagram of this creation. Figure 2 is an assembly state diagram of this creation. Figure 3 is a schematic cross-sectional view of this creation. Figure 4 is an assembly state diagram of the shaft core and transmission bushing of this invention. Figure 5 is an assembly state diagram of the transmission shaft sleeve and the second sleeve in this creation.

1: Shaft core

2: Transmission shaft sleeve

3: Damper

4: spring

5: First casing

6:Second casing

7:Plane bearing

8:Gasket

Claims (6)

A damping and buffering device structure, characterized by: including a shaft core (1), a transmission sleeve (2), a damper (3), a spring (4), a first sleeve (5) and a second sleeve (6) , the damper (3) is arranged in the first sleeve (5), the shaft core (1), the transmission sleeve (2), and the spring (4) are arranged in the second Inside the casing (6); the shaft core (1) is solid cylindrical, and the front end wall of the shaft core (1) is provided with a spiral groove (11), and the rear end wall is provided with limited teeth (12) along an annular shape; The transmission shaft sleeve (2) includes a connecting portion (21) at the front end and a limiting portion (22) at the rear end. The connecting portion (21) extends to the outside of the second sleeve (6) and is inserted into the second sleeve (6). At the rear end of the first casing (5), the limiting part (22) is a hollow structure, and the wall surface of the limiting element part (22) is provided with a round hole (23). Inside the round hole (23) Steel balls (24) are provided, and the steel balls (24) are slidably matched with the spiral groove (11), so that the shaft core (1) rotates in the axial direction inside the limiting part (22); so The damper (3) is arranged in the first sleeve (5), and the extended end of the damper (3) passes through the connecting portion (21) of the transmission shaft sleeve (2) and the The front end surface of the shaft core (1) is in contact, causing the damper (3) to act on the shaft core (1); the spring (4) is provided in the second sleeve (6) , and the spring (4) acts on the shaft core (1); the second sleeve (6) restricts the movement of the steel ball (24) in the round hole (23), and the The inner wall of the second sleeve (6) is provided with tooth slots (60) that mesh with the limiting teeth (12), so that the shaft core (1) passes through the limiting teeth (12) in the tooth slots. (60) moves along the axis. The damping and buffering device structure as claimed in claim 1 further includes a plane bearing (7), and the plane bearing (7) is sleeved on the connecting portion (21) of the transmission shaft sleeve (2). No. An accommodating groove for installing the planar bearing (7) is provided inside the end of the two sleeves (6), and the planar bearing (7) is in contact with the first sleeve (5). The damping and buffering device structure according to claim 2, further comprising a gasket (8), the gasket (8) is sleeved on the connecting portion (21) of the transmission shaft sleeve (2), and the One end surface of the gasket (8) is in contact with the plane bearing (7), and the other end surface is in contact with the first sleeve (5). The damping and buffering device structure according to claim 1, wherein a first adjusting member (101) is threaded into the end of the first sleeve (5), and the first adjusting member (101) is connected to the damping device. One end of the device (3) away from the shaft core (1) is in contact with the device (3). The damping and buffering device structure according to claim 1, wherein a second adjusting member (102) is threaded into the end of the second sleeve (6), and the second adjusting member (102) and the spring (4) The end far away from the axis core (1) is in contact. The damping and buffering device structure according to claim 1, wherein the outer wall surfaces of the first sleeve (5) and the second sleeve (6) are both provided with spline patterns.