CN111452823A

CN111452823A - Novel car coupler buffer mechanism

Info

Publication number: CN111452823A
Application number: CN202010466262.2A
Authority: CN
Inventors: 陈磊; 沈文虎
Original assignee: Changzhou Daqian Machinery Co ltd
Current assignee: Changzhou Daqian Machinery Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-07-28

Abstract

The invention discloses a novel coupler buffer mechanism which comprises a buffer shell, a central rod and an end cover, wherein the end cover is slidably sleeved on a pressurizing rod, and the end cover is connected with the pressurizing rod through a rotation limiting mechanism; the rear end of the central rod is limited in the rod cavity of the pressurizing rod through a limiting component and slides along the axial direction; the front end of the central rod penetrates out of the rod cavity and is sequentially sleeved with a rear sliding plate, an elastic component and a front sliding plate, and the front sliding plate is connected with a fixed nut, wherein the elastic component is a partition plate and an elastic body which are alternately sleeved on the central rod along the axial direction; the rear end of the buffer shell is fixedly connected with the end cover, the rear sliding plate, the elastic component and the front sliding plate are slidably arranged in a buffer movable cavity formed between the buffer shell and the end cover, and the fixing nut is slidably arranged in a nut movable cavity formed on the bottom wall of the buffer movable cavity. The invention has the advantages of bidirectional tension and compression, can realize energy absorption no matter compressed or stretched, and has large energy absorption capacity.

Description

Novel car coupler buffer mechanism

Technical Field

The invention relates to a coupler buffer, in particular to a novel coupler buffer mechanism.

Background

The coupler buffer device is a vehicle part used for realizing coupling between a locomotive and a vehicle or between the vehicle and the vehicle, transmitting traction force and impact force and keeping a certain distance between the vehicles. The conventional coupler buffer device comprises an installation mechanism A used for being connected with a car body and a coupler buffering mechanism which is rotatably connected with the installation mechanism A and used for being connected with two adjacent car bodies, wherein the coupler buffering mechanism comprises a coupler B and a buffer mechanism, one end of the buffer mechanism is connected to the coupler B, and the other end of the buffer mechanism is connected with the installation mechanism A through a hinge shaft.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to provide a novel coupler buffer mechanism, and the coupler buffer mechanism has the advantages of simple structure, convenience in manufacturing and assembling, bidirectional tension and compression, capability of absorbing energy no matter compressed or stretched, large energy absorption capacity, more uniform stress and good damping stability and buffering effect because elastic components are partition plates and elastic bodies which are alternately sleeved on a central rod along the axial direction.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the invention discloses a novel coupler buffer mechanism, which comprises a buffer shell, a central rod and an end cover, wherein a hinge part for being hinged with an installation mechanism is formed at the front end of the buffer shell; the rear end of the central rod is limited in a rod cavity of the pressurizing rod through a limiting component and slides along the axial direction; the front end of the central rod penetrates out of the rod cavity and is sequentially sleeved with a rear sliding plate, an elastic component and a front sliding plate, and then the front sliding plate is connected with a fixed nut, wherein the elastic component is a partition plate and an elastic body which are alternately sleeved on the central rod along the axial direction; the rear end of the buffer shell is fixedly connected with the end cover, the rear sliding plate, the elastic component and the front sliding plate are slidably arranged in a buffer movable cavity formed between the buffer shell and the end cover, and the fixing nut is slidably arranged in a nut movable cavity formed on the bottom wall of the buffer movable cavity.

Furthermore, the rotation limiting mechanism comprises a flat sliding section formed at the lower end of the pressurizing rod and a sliding sleeve formed on the end cover, the flat sliding section is slidably inserted into the sliding sleeve, two planes of the circumferential surface of the sliding sleeve, which are opposite to the flat sliding section, are respectively provided with a guide groove, the guide grooves are in sliding connection with a vertical plate of the L-shaped fixing piece, a transverse plate of the L-shaped fixing piece is fixedly connected with the end cover, and the distance between the vertical plates of the two L-shaped fixing pieces is smaller than the inner diameter of the sliding sleeve and larger than the distance between the two planes on the flat sliding section.

Furthermore, the limiting assembly comprises a first limiting step formed on the central rod and a second limiting step formed in the rod cavity, and the first limiting step and the second limiting step are abutted against each other for limiting.

Furthermore, the center rod is sleeved with two elastic bodies and a partition plate positioned between the two elastic bodies.

Furthermore, the rear end of the buffer shell is in threaded connection with the end cover.

Furthermore, at least two clamping grooves are formed in the rear end of the buffer shell along the circumferential direction of the buffer shell, and each clamping groove is matched with one clamping block; one end of the clamping block is clamped into the clamping groove, and the other end of the clamping block is fixedly connected with the end cover.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) the novel car coupler buffer mechanism is simple in structure and convenient to manufacture and assemble, when the compression rod is pulled backwards, the compression rod moves backwards relative to the end cover, the compression rod pulls the central rod to move backwards, the rear sliding plate is abutted against the end cover and does not move, the central rod drives the front sliding plate to move backwards to compress the elastic component to realize energy absorption, when the compression rod is pressed forwards, the compression rod moves forwards relative to the end cover, the front sliding plate is abutted against the bottom wall of the buffer movable cavity, the compression rod pushes the rear sliding plate to move forwards to compress the elastic component to realize energy absorption, so that the buffer mechanism has the advantages of bidirectional tension and compression, no matter the compression or the tension is adopted, the energy absorption can be realized, the energy absorption capacity is large, in addition, the elastic component is a partition plate and an elastic body which are alternately sleeved on the central rod along the axial direction, the stress is;

(2) the novel car coupler buffer mechanism is simple in structure of a rotation limiting mechanism and convenient to manufacture and assemble, the flat sliding section and the sliding sleeve can slide relatively, and the flat sliding section is limited between the vertical plates of the two L-shaped fixing pieces, and the distance between the vertical plates of the two L-shaped fixing pieces is smaller than the inner diameter of the sliding sleeve and larger than the distance between the two planes on the flat sliding section, so that the flat sliding section and the sliding sleeve cannot rotate relatively.

Drawings

FIG. 1 is a block diagram of a novel coupler draft gear application of the present invention;

FIG. 2 is a cross-sectional view of a novel draft gear of the present invention;

fig. 3 is a three-dimensional view of a novel draft gear of the present invention.

The reference numbers in the schematic diagrams illustrate that 1, a buffer shell, 1-1, a hinge part, 1-2, a buffer movable cavity, 1-3, a nut movable cavity, 2, a center rod, 2-1, a first limit step, 3, an end cover, 3-1, a sliding sleeve, 4, a pressurizing rod, 4-1, a rod cavity, 4-2, a flat sliding section, 4-3, a second limit step, 5, a rear sliding plate, 6, a front sliding plate, 7, a fixed nut, 8, a partition plate, 9, an elastic body, 10, L-shaped fixed parts, 11, a clamping block, an installation mechanism, A and a coupler.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example 1

With reference to fig. 2, the novel coupler draft gear of the present embodiment includes a draft gear housing 1, a center rod 2 and an end cap 3, a hinge portion 1-1 for hinge-connecting with an installation mechanism is formed at a front end of the draft gear housing 1, the end cap 3 is slidably sleeved on a pressure rod 4, and the end cap 3 and the pressure rod 4 are connected by a rotation limiting mechanism that allows only relative sliding but not relative rotation between the end cap 3 and the pressure rod 4; the rear end of the central rod 2 is limited in a rod cavity 4-1 of the pressurizing rod 4 through a limiting assembly and slides along the axial direction, the limiting assembly comprises a first limiting step 2-1 formed on the central rod 2 and a second limiting step 4-3 formed in the rod cavity 4-1, and the first limiting step 2-1 and the second limiting step 4-3 are abutted against each other for limiting; the front end of the central rod 2 penetrates out of the rod cavity 4-1 and is sequentially sleeved with a rear sliding plate 5, an elastic component and a front sliding plate 6, and then the elastic component is connected with a fixed nut 7, wherein the elastic component is a partition plate 8 and an elastic body 9 which are alternately sleeved on the central rod 2 along the axial direction; the rear end of the buffer shell 1 is fixedly connected with the end cover 3, and the rear end of the buffer shell 1 is in threaded connection with the end cover 3; the rear sliding plate 5, the elastic component and the front sliding plate 6 are all slidably arranged in a buffer movable cavity 1-2 formed between the buffer shell 1 and the end cover 3, and the fixed nut 7 is slidably arranged in a nut movable cavity 1-3 formed on the bottom wall of the buffer movable cavity 1-2; the structure is simple, the manufacture and the assembly are convenient, and in specific application, as shown in figure 1, a hinge part 1-1 of a buffer shell 1 is hinged with an installation mechanism A, and a pressurizing rod 4 is fixedly connected with a coupler B; when the compression rod is pulled backwards, the compression rod moves backwards relative to the end cover, the compression rod pulls the central rod to move backwards, the rear sliding plate is abutted against the end cover and does not move, the central rod drives the front sliding plate to move backwards to compress the elastic component to realize energy absorption, when the compression rod is pressed forwards, the compression rod moves forwards relative to the end cover, the front sliding plate is abutted against the bottom wall of the buffer movable cavity, the compression rod pushes the rear sliding plate to move forwards to compress the elastic component to realize energy absorption, so that the buffer mechanism has the advantages of bidirectional tension and compression, can realize energy absorption no matter the buffer mechanism is compressed or stretched, and has large energy absorption capacity, in addition, the elastic components are partition plates and elastic bodies which are alternately sleeved on the central rod along the axial direction, the stress is more uniform;

continuing and combining with figure 3, the rotation limiting mechanism comprises a flat sliding section 4-2 formed at the lower end of the pressurizing rod 4 and a sliding sleeve 3-1 formed on the end cover 3, the flat sliding section 4-2 is slidably inserted into the sliding sleeve 3-1, two planes of the circumferential surface of the sliding sleeve 3-1, which are opposite to the flat sliding section 4-2, are provided with guide grooves, the guide grooves are slidably connected with a vertical plate of the L-shaped fixing member 10, and a transverse plate of the L-shaped fixing member 10 is fixedly connected with the end cover 3, wherein the distance between the vertical plates of the two L-shaped fixing members 10 is smaller than the inner diameter of the sliding sleeve 3-1 and larger than the distance between the two planes on the flat sliding section 4-2, the structure is simple, the manufacture and the assembly are convenient, because the flat sliding section 4-2 is slidably inserted into the sliding sleeve 3-1, the flat sliding section is limited between the vertical plates of the two L-shaped fixing members, the distance between the vertical plates of the two L-shaped sliding sections is smaller than the inner diameter of the sliding sleeve and larger than the distance between the two planes on the flat sliding section, therefore, the flat sliding sleeve.

Example 2

The basic structure of the novel coupler buffer mechanism of the embodiment is the same as that of embodiment 1, and the difference is that: the buffer shell 1 is fixedly connected with the end cover in the following way (see fig. 3): at least two clamping grooves are formed in the rear end of the buffer shell 1 along the circumferential direction of the buffer shell, and each clamping groove is matched with one clamping block 11; one end of the clamping block 11 is clamped into the clamping groove, and the other end of the clamping block 11 is fixedly connected with the end cover 3.

The novel coupler buffer mechanism has the advantages of simple structure, convenience in manufacturing and assembling, bidirectional tension and compression, capability of absorbing energy no matter the coupler buffer mechanism is compressed or stretched, large energy absorption capacity, more uniform stress due to the fact that the elastic components are the partition plates and the elastic bodies are alternately sleeved on the central rod along the axial direction, and good shock absorption stability and buffer effect.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. The utility model provides a novel coupler buffer gear, includes buffer shell (1), the front end of buffer shell (1) form articulated portion (1-1) that is used for with installation mechanism articulated, its characterized in that: the device is characterized by further comprising a central rod (2) and an end cover (3), wherein the end cover (3) is slidably sleeved on the pressurizing rod (4), and the end cover (3) is connected with the pressurizing rod (4) through a rotation limiting mechanism which allows the end cover (3) and the pressurizing rod (4) to only slide relatively but not rotate relatively; the rear end of the central rod (2) is limited in a rod cavity (4-1) of the pressurizing rod (4) through a limiting component and slides along the axial direction; the front end of the central rod (2) penetrates out of the rod cavity (4-1) and is sequentially sleeved with a rear sliding plate (5), an elastic component and a front sliding plate (6) and then is connected with a fixed nut (7), wherein the elastic component is a partition plate (8) and an elastic body (9) which are alternately sleeved on the central rod (2) along the axial direction; the rear end of the buffer shell (1) is fixedly connected with the end cover (3), the rear sliding plate (5), the elastic component and the front sliding plate (6) are slidably arranged in a buffer movable cavity (1-2) formed between the buffer shell (1) and the end cover (3), and the fixed nut (7) is slidably arranged in a nut movable cavity (1-3) formed on the bottom wall of the buffer movable cavity (1-2).

2. The novel coupler buffer mechanism is characterized in that the rotation limiting mechanism comprises a flat sliding section (4-2) formed at the lower end of the pressurizing rod (4) and a sliding sleeve (3-1) formed on the end cover (3), the flat sliding section (4-2) is slidably inserted into the sliding sleeve (3-1), guide grooves are formed in two planes, opposite to the flat sliding section (4-2), on the circumferential surface of the sliding sleeve (3-1), are in sliding connection with a vertical plate of the L-shaped fixing piece (10), a transverse plate of the L-shaped fixing piece (10) is fixedly connected with the end cover (3), and the distance between the vertical plates of the two L-shaped fixing pieces (10) is smaller than the inner diameter of the sliding sleeve (3-1) and larger than the distance between the two planes on the flat sliding section (4-2).

3. The novel coupler buffer mechanism of claim 1, wherein: the limiting assembly comprises a first limiting step (2-1) formed on the central rod (2) and a second limiting step (4-3) formed in the rod cavity (4-1), and the first limiting step (2-1) and the second limiting step (4-3) are abutted against each other for limiting.

4. The novel coupler buffer mechanism of claim 1, wherein: the rear end of the buffer shell (1) is in threaded connection with the end cover (3).

5. The novel coupler buffer mechanism of claim 1, wherein: the rear end of the buffer shell (1) is provided with at least two clamping grooves along the circumferential direction, and each clamping groove is matched with one clamping block (11); one end of the clamping block (11) is clamped into the clamping groove, and the other end of the clamping block (11) is fixedly connected with the end cover (3).