CN216975637U

CN216975637U - Damping limiting device of tracked vehicle

Info

Publication number: CN216975637U
Application number: CN202220359990.8U
Authority: CN
Inventors: 高山铁; 王波; 莫香亮
Original assignee: Guizhou Jonyang Kinetics Co Ltd
Current assignee: Guizhou Jonyang Kinetics Co Ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-07-15
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a damping limiting device of a tracked vehicle, which comprises: the shell is hollow, and one end of the shell is provided with an opening communicated with the hollow interior; the impact rod is slidably and hermetically arranged in the opening of the shell through a sealing piece, the bottom of the impact rod is fixedly connected with a piston, the piston is slidably and hermetically arranged in the hollow interior of the shell through an anti-friction belt, and the hollow interior of the shell is divided into two chambers, namely an air chamber and a liquid chamber, which are hermetically separated by the bottom of the piston; the piston is provided with an orifice connecting two chambers of the breather chamber and the liquid chamber; and a damper body which is not dissolved in air and is in a fluid state, the damper body itself having elasticity, the damper body being accommodated in the housing fluid chamber at the bottom of the piston. Because the damping body is elastic fluid which is not dissolved with air, the damping limiting device only has two cavities of an air chamber and a liquid chamber, the problem that the whole length of the limiting damping is increased due to the fact that a throttling damping block and a floating piston are used for separating three cavities is solved, and the practicability of the damping limiting device is improved.

Description

Damping limiting device of tracked vehicle

Technical Field

The utility model relates to a damping limiting device of a tracked vehicle, and belongs to the technical field of tracked vehicles.

Background

The driving of the tracked vehicle is that the driving wheel drives the track, so that the track moves under the load guiding of the loading wheel to make the tracked vehicle advance; when tracked vehicle marchs on unevenness's land, tracked vehicle need use stop device to overcome and meet big unevenness's obstacle advancing, guarantees that the balance elbow can not drive the too much upward movement of bogie wheel when the bogie wheel strides across unevenness's obstacle and receives instantaneous great impact, guarantees that the bogie wheel bears the burden with the track all the time.

In a stroke-adjustable limiting device and a stroke-adjustable limiting system for an amphibious tracked vehicle with Chinese patent publication No. CN210829945U, the technology of the disclosed limiting device is as follows: "fluid in the grease chamber flows through the aperture on the throttle damping piece and through the nitrogen gas in the floating piston compression buffering air chamber, the aperture on the throttle damping piece plays damping vibration damping effect, nitrogen gas in the buffering air chamber plays the cushioning effect, floating piston has realized oil-gas separation", though, realized oil-gas separation when playing spacing flexible damping, nevertheless, use the three cavity in throttle damping piece and floating piston interval, there is the problem of the whole length increase of spacing damping, stop device's practicality has been reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a damping limiting device of a tracked vehicle.

The utility model is realized by the following technical scheme.

The utility model provides a damping limiting device of a tracked vehicle, comprising:

the shell is hollow, and one end of the shell is provided with an opening communicated with the hollow interior;

the impact rod is slidably and hermetically arranged in the opening of the shell through a sealing piece, the bottom of the impact rod is fixedly connected with a piston, the piston is slidably and hermetically arranged in the hollow interior of the shell through an anti-friction belt, and the hollow interior of the shell is divided into two chambers, namely an air chamber and a liquid chamber, which are hermetically separated by the bottom of the piston; the piston is provided with an orifice connecting two chambers of the vent chamber and the liquid chamber;

and a damper body which is not dissolved in air and is in a fluid state, the damper body itself having elasticity, the damper body being accommodated in a housing fluid chamber at the bottom of the piston.

The mounting seat is fixed on the side edge of the shell; the mounting seat is provided with a mounting through hole.

The mounting seat and the shell are integrally formed and fixed.

The sealing element is a sealing ring.

The piston and the striking rod are integrally formed and fixed.

The antifriction belt is a sealing belt.

The bottom of the piston is provided with a groove, and the throttling holes are formed in two sides of the groove in the bottom of the piston.

The damping body is made of daub.

The damping body is plastic rubber or liquid silicon rubber or liquid rubber.

The utility model has the beneficial effects that: because the damping body is elastic fluid which is not dissolved with air, the damping limiting device only has two cavities of an air chamber and a liquid chamber, the problem that the whole length of the limiting damping is increased due to the fact that a throttling damping block and a floating piston are used for separating three cavities is solved, and the practicability of the damping limiting device is improved.

Drawings

FIG. 1 is a schematic front cross-sectional view of the present invention;

FIG. 2 is a schematic view of the inverted use of FIG. 1;

in the figure: 1-a striker bar; 2-a shell; 3-a seal; 4-air chamber; 5-orifice; 6-an antifriction belt; 7-a piston; 8-a mounting seat; 9-a damping body; 10-a damping limiting device; 11-balance elbow.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1-2.

The damping limiting device 10 of a tracked vehicle of the present invention comprises:

casing 2 by rigid material such as stainless steel, the inside of casing 2 is cavity and one end is equipped with the inside opening of intercommunication cavity, and the side integrated into one piece of casing 2 is fixed with mount pad 8, and mount pad 8 is equipped with the installation through-hole of being connected with tracked vehicle through the bolt.

The device comprises a striking rod 1, a piston 7, a friction reducing belt 6, a sealing ring and the like, wherein the striking rod 1 is slidably and hermetically arranged in an opening of a shell 2 through the sealing member 3 formed by the sealing ring and the like, the bottom of the striking rod 1 is integrally formed and fixedly connected with the piston 7, the piston 7 is slidably and hermetically arranged in the hollow interior of the shell 2 through the friction reducing belt 6 formed by the sealing belt and the like, and the bottom of the piston 7 divides the hollow interior of the shell 2 into two chambers of an air chamber 4 and a liquid chamber which are hermetically separated; the bottom of the piston 7 is provided with a groove, and two sides of the groove at the bottom of the piston 7 are provided with throttle holes 5 which are communicated with two chambers of the air chamber 4 and the liquid chamber.

The damping body 9 is insoluble with air and is in a fluid state, the damping body 9 has elasticity, and the damping body 9 is a daub type polymer plastic material such as daub or colloid such as plasticated rubber, liquid silicon rubber and liquid rubber; the damping body 9 is accommodated in the liquid chamber of the housing 2 at the bottom of the piston 7.

The working principle is as follows: the piston 7 and the striker rod 1 are now in the inverted position in fig. 1 for limiting the maximum travel of the suspension, fixed by the mounting 8 at the extreme positions of the movement of the balance elbow 11 of the bogie. When the balance elbow 11 of the bogie wheel moves to the extreme position, the balance elbow contacts the impact rod 1, the piston 7 is driven to move downwards in the impact process, the damping body 9 in the lower cavity enters the small cavity through the throttling holes 5 on the two sides, the upper part of the impact rod 1 occupies a certain volume, the volume of the air chamber 4 in the cavity is reduced by the damping body 9, the damping body 9 is not dissolved with air, and when the piston 7 moves downwards further, the volume of the colloid is continuously compressed, so that the energy generated by impact is absorbed.

When the external force is removed, the volume of the compressed gas in the air chamber 4 is completely released, and the damping body 9 in the small-cavity air chamber 4 is pushed to enter the large-cavity liquid chamber through the throttling hole 5. Because the damping body 9 has elastic modulus, the elastic modulus is uniformly released under the action of the elastic force of the damping body 9 after being pressed to push the piston 7 to move upwards and drive the impact rod 1 to extend outwards, so that the reset action of the impact rod is completed.

Because the damping body 9 is elastic fluid which is not dissolved with air, the damping limiting device only has two cavities of the air chamber 4 and the liquid chamber, the problem that three cavities of a throttling damping block and a floating piston are used for spacing is solved, the whole length of limiting damping is increased, the practicability of the damping limiting device is improved, and the damping body 9 of the elastic fluid is compressed and reset, and the damping motion of the piston 7 and the impact rod 1 is smoother compared with that of the prior art (the stroke-adjustable limiting device and system for the amphibious crawler vehicle of CN 210829945U) when oil is used for damping motion through the flowing and elastic modulus action of the damping body 9.

Claims

1. A damping limiting device for a tracked vehicle, comprising:

the shell (2), the inside of the shell (2) is hollow and one end of the shell is provided with an opening communicated with the hollow inside;

the impact rod (1) is slidably and hermetically mounted in an opening of the shell (2) through a sealing piece (3), a piston (7) is fixedly connected to the bottom of the impact rod (1), the piston (7) is slidably and hermetically mounted in the hollow interior of the shell (2) through an antifriction belt (6), and the hollow interior of the shell (2) is divided into two chambers, namely an air chamber (4) and a liquid chamber, at a sealed interval by the bottom of the piston (7); the piston (7) is provided with an orifice (5) which is communicated with the air chamber (4) and the liquid chamber;

and a damper (9) which is not compatible with air and is in a fluid state, wherein the damper (9) itself has elasticity, and the damper (9) is accommodated in a liquid chamber of the housing (2) at the bottom of the piston (7).

2. A track vehicle damping restraint according to claim 1, characterized in that: the mounting device further comprises a mounting seat (8), and the mounting seat (8) is fixed on the side edge of the shell (2); the mounting base (8) is provided with a mounting through hole.

3. A track vehicle damping restraint according to claim 2, characterized in that: the mounting seat (8) and the shell (2) are integrally formed and fixed.

4. A track vehicle damping restraint according to claim 1, characterized in that: the sealing element (3) is a sealing ring.

5. A track vehicle damping restraint according to claim 1, characterized in that: the piston (7) and the impact rod (1) are integrally formed and fixed.

6. A track vehicle damping restraint according to claim 1, characterized in that: the antifriction belt (6) is a sealing belt.

7. A track vehicle damping restraint according to claim 1, characterized in that: the bottom of the piston (7) is provided with a groove, and the throttling holes (5) are formed in two sides of the groove in the bottom of the piston (7).

8. A damping restraint for a tracked vehicle as claimed in claim 1, characterized in that: the damping body (9) is made of daub.

9. A track vehicle damping restraint according to claim 1, characterized in that: the damping body (9) is either plasticated rubber or liquid silicon rubber or liquid rubber.