CN212332665U - Novel car coupler buffer mechanism - Google Patents

Abstract

The utility model 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 all slidably arranged in a buffer movable cavity formed between the buffer shell and the end cover; the fixed nut is slidably arranged in a nut moving cavity formed on the bottom wall of the buffer moving cavity. The utility model has the advantages of two-way drawing and pressing, no matter be compressed or be stretched, can both realize the energy-absorbing, the energy-absorbing is capacious.

Description

Novel car coupler buffer mechanism

Technical Field

The utility model relates to a coupling buffer, more specifically say, relate to a novel coupling buffer gear.

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 utility model

An object of the utility model is to provide a novel car coupler buffer gear adopts the utility model discloses a technical scheme, simple structure, it is convenient to make and assemble, has two-way draw and press the advantage, no matter receive compression or stretch, can both realize the energy-absorbing, the energy-absorbing is capacious, and elastic component is for locating baffle and the elastomer on well core rod along the axial cover in turn in addition, and the atress is more even, and shock attenuation stability and buffering are effectual.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a novel car coupler buffer mechanism, which comprises a buffer shell, a central rod and an end cover, wherein the front end of the buffer shell is provided with a hinge part which is hinged with an installation mechanism, the end cover is slidably sleeved on a pressure rod, and the end cover is connected with the pressure rod through a rotation limiting mechanism which allows the end cover and the pressure rod to slide relatively but not rotate relatively; 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, guide grooves are formed in the circumferential surface of the sliding sleeve, the two planes of the sliding sleeve, which are opposite to the flat sliding section, are connected with vertical plates of the L-shaped fixing pieces in a sliding mode, transverse plates of the L-shaped fixing pieces are 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 of 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

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses a novel car coupler buffer mechanism, a structure is simple, the manufacturing and the assembly are convenient, when the pressure bar is pulled backwards, the pressure bar moves backwards relative to the end cover, the pressure bar pulls the central rod to move backwards, the rear sliding plate is supported on the end cover and is not moved, the central rod drives the front sliding plate to move backwards and compress the elastic component, the energy absorption is realized, when the pressure bar is pressed forwards, the pressure bar moves forwards relative to the end cover, the front sliding plate is supported on the bottom wall of the buffer movable cavity, the pressure bar pushes the rear sliding plate to move forwards and compress the elastic component, the energy absorption is realized, the buffer mechanism has the advantages of bidirectional tension and compression, no matter whether the pressure bar is compressed or stretched, the energy absorption can be realized, the energy absorption capacity is large, in addition, the elastic component is the partition plate and the elastomer which are alternately sleeved on the central rod;

(2) the utility model discloses a novel coupler buffer gear, its rotation stop gear simple structure, it is convenient to make and assemble, and flat sliding section and sliding sleeve can the relative slip, because between the riser of flat sliding section two L shape mountings of restriction, the distance between the riser of two L shape mountings is less than the internal diameter of sliding sleeve and is greater than the distance between two planes on the flat sliding section, therefore flat sliding section and sliding sleeve can not the relative rotation.

Drawings

Fig. 1 is a structural diagram of a novel coupler draft gear application of the present invention;

fig. 2 is a sectional view of a novel coupler draft gear of the present invention;

fig. 3 is a three-dimensional view of the novel car coupler buffer mechanism of the present invention.

The reference numerals in the schematic drawings illustrate: 1. a bumper housing; 1-1, a hinge; 1-2, buffering the movable cavity; 1-3, a nut movable cavity; 2. a center pole; 2-1, a first limiting step; 3. an end cap; 3-1, sliding sleeves; 4. a pressurizing rod; 4-1, a rod cavity; 4-2, a flat sliding section; 4-3, a second limiting step; 5. a rear slide plate; 6. a front slide plate; 7. fixing a nut; 8. a partition plate; 9. an elastomer; 10. an L-shaped fixing member; 11. a clamping block; A. an installation mechanism; B. a car coupler.

Detailed Description

For a further understanding of the present invention, reference will 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 the 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, and 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 groove is connected with the vertical plates of the L-shaped fixing pieces 10 in a sliding mode, the transverse plates of the L-shaped fixing pieces 10 are fixedly connected with the end covers 3, 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, the structure is simple, manufacturing and assembling are convenient, the flat sliding section 4-2 can be inserted into the sliding sleeve 3-1 in a sliding mode, the flat sliding section is limited between the vertical plates of the two L-shaped fixing pieces, 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, the flat sliding section and the sliding sleeve can slide relatively, but the flat sliding section.

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 utility model discloses a novel car coupler buffer gear, simple structure, it is convenient to make and assemble, has two-way draw and press the advantage, no matter receive compression or receive tensile, can both realize the energy-absorbing, and the energy-absorbing is capacious, and elastic component is for locating baffle and the elastomer on well core rod along the axial in turn cover in addition, and the atress is more even, and shock attenuation stability and buffering are effectual.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, 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 of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (5)

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 of claim 1, wherein: 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) can be slidably inserted into the sliding sleeve (3-1), and two planes, which are opposite to the flat sliding section (4-2), on the circumferential surface of the sliding sleeve (3-1) are provided with guide grooves; the guide groove is connected with the vertical plates of the L-shaped fixing pieces (10) in a sliding mode, the transverse plates of the L-shaped fixing pieces (10) are 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).

Images