A new type of coupler buffer mechanism

Abstract

The present invention discloses a novel coupler buffer mechanism, including a buffer housing, a center rod and an end cover, wherein the end cover can be slidably mounted on the pressure rod, and the end cover and the pressure rod are connected by a rotating limit mechanism; the rear end of the center rod is limited in the rod cavity of the pressure rod by a limit assembly and slides axially; the front end of the center rod passes through the rod cavity and is sequentially mounted with a rear slide plate, an elastic assembly and a front slide plate, and then connected to a fixing nut, wherein the elastic assembly is a partition plate and an elastic body alternately mounted on the center rod along the axial direction; the rear end of the above-mentioned buffer housing is fixedly connected to the end cover, and the above-mentioned rear slide plate, elastic assembly and front slide plate can be slidably arranged in a buffer active cavity formed between the buffer housing and the end cover, and the above-mentioned fixing nut can be slidably arranged in a nut active cavity formed on the bottom wall of the buffer active cavity. The present invention has the advantages of bidirectional tension and compression, and can achieve energy absorption regardless of compression or tension, and has a large energy absorption capacity.

Description

Technical Field

[0001] The present invention relates to a coupler buffer, and more particularly to a novel coupler buffer mechanism. Background Art

[0002] The coupler buffer device is a vehicle component used to achieve the coupling between a locomotive and a vehicle or between vehicles, transmit traction and impact force, and keep a certain distance between vehicles. The existing coupler buffer device includes a mounting mechanism A for connecting with the vehicle body and a coupler buffer mechanism rotatably connected with the mounting mechanism A for connecting two adjacent vehicle bodies. The coupler buffer mechanism includes 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 to the mounting mechanism A through a hinge shaft. Summary of the invention

[0003] 1. Technical problem to be solved by the invention

[0004] The purpose of the present invention is to provide a new type of coupler buffer mechanism, which adopts the technical solution of the present invention, has a simple structure, is easy to manufacture and assemble, has the advantages of bidirectional tension and compression, can absorb energy regardless of being compressed or stretched, and has a large energy absorption capacity. In addition, the elastic component is a partition and an elastomer alternately sleeved on the center rod along the axial direction, so the force is more uniform, and the shock absorption stability and buffering effect are good.

[0005] 2. Technical solution

[0006] In order to achieve the above object, the technical solution provided by the present invention is:

[0007] A novel coupler buffer mechanism of the present invention comprises a buffer shell, a center rod and an end cover, wherein the front end of the buffer shell is formed with a hinge portion for being hingedly connected to a mounting mechanism, the end cover can be slidably mounted on the pressure rod, and the end cover and the pressure rod are connected by a rotation limiting mechanism that allows the end cover and the pressure rod to only slide relative to each other but not rotate relative to each other; the rear end of the center rod is limited in the rod cavity of the pressure rod by a limiting assembly and slides axially; the front end of the center rod is sequentially sleeved with a rear slide plate, an elastic assembly and a front slide plate after passing through the rod cavity, and is then connected to a fixing nut, wherein the elastic assembly is a partition plate and an elastomer alternately sleeved on the center rod along the axial direction; the rear end of the buffer shell is fixedly connected to the end cover, the rear slide plate, the elastic assembly and the front slide plate can be slidably arranged in a buffer active cavity formed between the buffer shell and the end cover, and the fixing nut can be slidably arranged in a nut active cavity formed on the bottom wall of the buffer active cavity.

[0008] Furthermore, the rotation limiting mechanism includes a flat sliding section formed at the lower end of the pressure rod and a sliding sleeve formed on the end cover, the flat sliding section can be slidably inserted into the sliding sleeve, and guide grooves are provided on the two planes on the circumferential surface of the sliding sleeve facing the flat sliding section, the guide grooves are slidably connected to the vertical plates of the L-shaped fixing parts, and the horizontal plates of the L-shaped fixing parts are fixedly connected to the end cover, wherein the distance between the vertical plates of the two L-shaped fixing parts is smaller than the inner diameter of the sliding sleeve and larger than the distance between the two planes on the flat sliding section.

[0009] Furthermore, the limiting assembly includes a first limiting step formed on the center rod and a second limiting step formed in the rod cavity, and the first limiting step and the second limiting step abut against each other for limiting.

[0010] Furthermore, the central rod is sleeved with two elastic bodies and a partition plate located between the two elastic bodies.

[0011] Furthermore, the rear end of the buffer housing is threadedly connected to the end cover.

[0012] Furthermore, at least two card slots are provided on the rear end of the buffer housing along its circumference, and each card slot is equipped with a card block; one end of the card block is inserted into the card slot, and the other end of the card block is fixedly connected to the end cover.

[0013] 3. Beneficial effects

[0014] Compared with the existing known technology, the technical solution provided by the present invention has the following beneficial effects:

[0015] (1) A novel coupler buffer mechanism of the present invention has a simple structure and is easy to manufacture and assemble. When the pressure rod is pulled backward, the pressure rod moves backward relative to the end cover, the pressure rod pulls the center rod to move backward, the rear slide plate rests on the end cover and does not move, and the center rod drives the front slide plate to move backward to compress the elastic component to achieve energy absorption. When the pressure rod is pressed forward, the pressure rod moves forward relative to the end cover, the front slide plate rests on the bottom wall of the buffer activity chamber, and the pressure rod pushes the rear slide plate to move forward to compress the elastic component to achieve energy absorption, so that the buffer mechanism has the advantages of bidirectional tension and compression, and can achieve energy absorption regardless of compression or tension, and has a large energy absorption capacity. In addition, the elastic component is a partition and an elastic body alternately sleeved on the center rod along the axial direction, and the force is more uniform, and the shock absorption stability and buffering effect are good;

[0016] (2) A novel coupler buffer mechanism of the present invention has a simple rotation limiting mechanism structure and is easy to manufacture and assemble. The flat sliding section and the sliding sleeve can slide relative to each other. Since the flat sliding section is restricted between the vertical plates of the two L-shaped fixing parts, the distance between the vertical plates of the two L-shaped fixing parts is smaller than the inner diameter of the sliding sleeve and larger than the distance between the two planes on the flat sliding section, and therefore the flat sliding section and the sliding sleeve cannot rotate relative to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a novel coupler buffer mechanism of the present invention;

[0018] Figure 2 It is a cross-sectional view of a novel coupler buffer mechanism of the present invention;

[0019] Figure 3 It is a three-dimensional diagram of a novel coupler buffer mechanism of the present invention.

[0020] Explanation of the numbers in the schematic diagram: 1. Buffer housing; 1-1. Hinge; 1-2. Buffer movable chamber; 1-3. Nut movable chamber; 2. Center rod; 2-1. First limiting step; 3. End cover; 3-1. Sliding sleeve; 4. Pressure rod; 4-1. Rod chamber; 4-2. Flat sliding section; 4-3. Second limiting step; 5. Rear slide plate; 6. Front slide plate; 7. Fixing nut; 8. Partition; 9. Elastomer; 10. L-shaped fixing piece; 11. Block; A. Mounting mechanism; B. Hook. DETAILED DESCRIPTION

[0021] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.

[0022] Example 1

[0023] Combination Figure 2 A novel coupler buffer mechanism of the present embodiment comprises a buffer housing 1, a center rod 2 and an end cover 3. The front end of the buffer housing 1 is formed with a hinged portion 1-1 for being hingedly connected to a mounting mechanism. The end cover 3 can be slidably mounted on a pressure rod 4, and the end cover 3 and the pressure rod 4 are connected by a rotation limiting mechanism that allows the end cover 3 and the pressure rod 4 to only slide relative to each other but not to rotate relative to each other. The rear end of the center rod 2 is limited in a rod cavity 4-1 of the pressure rod 4 by a limiting assembly and slides axially. The specific limiting assembly comprises a first limiting step 2-1 formed on the center rod 2 and a second limiting step 4-3 formed in the rod cavity 4-1. The first limiting step 2-1 and the second limiting step 4-3 are mutually Mutual abutment and limiting; the front end of the center rod 2 passes through the rod cavity 4-1 and is sequentially sleeved with a rear slide plate 5, an elastic component and a front slide plate 6, and then connected to a fixing nut 7, wherein the elastic component is a partition plate 8 and an elastic body 9 alternately sleeved on the center rod 2 along the axial direction; the rear end of the above-mentioned buffer shell 1 is fixedly connected to the end cover 3, and specifically the rear end of the buffer shell 1 is threadedly connected to the end cover 3; the above-mentioned rear slide plate 5, elastic component and front slide plate 6 can be slidably arranged in the buffer activity cavity 1-2 formed between the buffer shell 1 and the end cover 3, and the above-mentioned fixing nut 7 can be slidably arranged in the nut activity cavity 1-3 formed on the bottom wall of the buffer activity cavity 1-2; the structure is simple, and the manufacturing and assembly are convenient. For specific application, please refer to Figure 1 As shown, the hinged portion 1-1 of the buffer housing 1 is hingedly connected to the mounting mechanism A, and the pressure rod 4 is fixedly connected to the coupler B; when the pressure rod is pulled backward, the pressure rod moves backward relative to the end cover, the pressure rod pulls the center rod to move backward, the rear slide plate rests on the end cover and does not move, the center rod drives the front slide plate to move backward to compress the elastic component to achieve energy absorption, and when the pressure rod is pressed forward, the pressure rod moves forward relative to the end cover, the front slide plate rests on the bottom wall of the buffer activity chamber, the pressure rod pushes the rear slide plate to move forward to compress the elastic component to achieve energy absorption, so that the buffer mechanism has the advantages of bidirectional tension and compression, whether it is compressed or stretched, it can achieve energy absorption, and the energy absorption capacity is large. In addition, the elastic component is a partition and an elastic body alternately sleeved on the center rod along the axial direction, the force is more uniform, and the shock absorption stability and buffering effect are good;

[0024] Continue and combine Figure 3 The rotation limiting mechanism includes a flat sliding section 4-2 formed at the lower end of the pressure rod 4 and a sliding sleeve 3-1 formed on the end cover 3. The flat sliding section 4-2 can be slidably inserted into the sliding sleeve 3-1. Guide grooves are provided at two planes on the circumferential surface of the sliding sleeve 3-1 facing the flat sliding section 4-2; the guide groove is slidably connected to the vertical plate of the L-shaped fixing member 10, and the horizontal plate of the L-shaped fixing member 10 is fixedly connected to 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 and the manufacturing and assembly are convenient. Since the flat sliding section 4-2 can be slidably inserted into the sliding sleeve 3-1, the flat sliding section is restricted between the vertical plates of the two L-shaped fixing members, and the distance between the vertical plates of the two L-shaped fixing members 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 the flat sliding section and the sliding sleeve can slide relative to each other, but the flat sliding section and the sliding sleeve cannot rotate relative to each other.

[0025] Example 2

[0026] The basic structure of a novel coupler buffer mechanism of this embodiment is the same as that of embodiment 1, except that: the buffer housing 1 and the end cover are fixedly connected in the following manner (see Figure 3 As shown): at least two slots are provided on the rear end of the buffer housing 1 along its circumference, and each slot is equipped with a card block 11; one end of the card block 11 is inserted into the slot, and the other end of the card block 11 is fixedly connected to the end cover 3.

[0027] A novel coupler buffer mechanism of the present invention has a simple structure, is easy to manufacture and assemble, has the advantages of bidirectional tension and compression, can absorb energy regardless of being compressed or stretched, and has a large energy absorption capacity. In addition, the elastic component is a partition and an elastomer alternately sleeved on the center rod along the axial direction, so the force is more uniform, and the shock absorption stability and buffering effect are good.

[0028] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A novel coupler buffer mechanism, comprising a buffer housing (1), wherein the front end of the buffer housing (1) is formed with a hinged portion (1-1) for hinged connection with a mounting mechanism, characterized in that: It also includes a center rod (2) and an end cover (3), wherein the end cover (3) can be slidably mounted on the pressure rod (4), and the end cover (3) and the pressure rod (4) are connected by a rotation limit mechanism that allows the end cover (3) and the pressure rod (4) to only slide relative to each other but not to rotate relative to each other; the rear end of the center rod (2) is limited in the rod cavity (4-1) of the pressure rod (4) by a limit assembly and slides axially; the front end of the center rod (2) passes through the rod cavity (4-1) and is sequentially mounted with a rear slide plate (5), an elastic assembly and a front slide plate (6) is connected to the fixing nut (7) at the rear, wherein the elastic component is a partition (8) and an elastic body (9) alternately sleeved on the center rod (2) along the axial direction; the rear end of the buffer shell (1) is fixedly connected to the end cover (3), the rear slide plate (5), the elastic component and the front slide plate (6) can all be slidably arranged in the buffer activity cavity (1-2) formed between the buffer shell (1) and the end cover (3), and the fixing nut (7) can be slidably arranged in the nut activity cavity (1-3) formed on the bottom wall of the buffer activity cavity (1-2); The rotation limiting mechanism comprises a flat sliding section (4-2) formed at the lower end of the pressure rod (4) and a sliding sleeve (3-1) formed on the end cover (3); the flat sliding section (4-2) can be slidably inserted into the sliding sleeve (3-1); guide grooves are provided on two planes of the circumferential surface of the sliding sleeve (3-1) facing the flat sliding section (4-2); the guide grooves are slidably connected to the vertical plate of the L-shaped fixing member (10); The transverse plate is fixedly connected to 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 limiting assembly comprises a first limiting step (2-1) formed on the center 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) abut against each other for limiting.

2. A novel coupler buffer mechanism according to claim 1, characterized in that: The rear end of the buffer housing (1) is threadedly connected to the end cover (3).

3. A novel coupler buffer mechanism according to claim 1, characterized in that: At least two slots are provided on the rear end of the buffer housing (1) along its circumference, and each slot is equipped with a card block (11); one end of the card block (11) is inserted into the slot, and the other end of the card block (11) is fixedly connected to the end cover (3).

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