Towing beam and central towing device

Abstract

The application discloses a traction beam, comprising a traction beam body, two vertical stops respectively arranged at two ends of the upper part of the traction beam body and extending outward along the length direction of the traction beam body, two horizontal stop mounting parts respectively arranged at two ends of the lower part of the traction beam body, and two longitudinal stops respectively arranged at two sides of the traction beam body along the thickness direction and extending outward along the thickness direction of the traction beam body. By adopting the technical scheme, the compact design of the horizontal stop, the longitudinal stop, the vertical stop and traction is realized compared with the prior art. On the other hand, the vertical stops have the hoisting function by arranging the outward extending vertical stops at the two ends of the upper part of the traction beam body.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit, in particular to a traction beam and a central traction device. BACKGROUND

[0002] The traction device of the current bogie of the rail vehicle is composed of a traction pin seat and a traction rod, which is used to transmit traction force and braking force, reduce the longitudinal impact between the vehicle body and the bogie, ensure the relative movement between the vehicle body and the bogie, and facilitate the vehicle to pass through the curve. The traction point of this type of traction device is high, and the bogie requires a large space layout size.

[0003] For a narrow-gauge bogie or an axle box built-in bogie, the internal space of the bogie is small, the structure is compact, and the weight control requirement is high, so higher requirements are put forward for the space layout and weight of the traction device. The longitudinal stop, vertical stop and overall lifting device of the prior art are independently designed functional devices, which are difficult to meet the requirements of lighter weight and integration of multiple functional interfaces in a limited space range. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the embodiments of the present application adopt the following technical solutions.

[0006] On the one hand, a traction beam is provided, characterized in that it comprises:

[0007] a traction beam body;

[0008] two vertical stops, respectively arranged at both ends of the upper part of the traction beam body and extending outward along the length direction of the traction beam body;

[0009] two horizontal stop mounting parts, respectively arranged at both ends of the lower part of the traction beam body; and

[0010] two longitudinal stops, respectively arranged at both sides of the traction beam body along the thickness direction and extending outward along the thickness direction of the traction beam body.

[0011] The above structure realizes the compact design of the horizontal stop, the longitudinal stop, the vertical stop and the traction, meets the requirements of lighter weight of the traction beam and integration of multiple functional interfaces in a limited space range. On the other hand, by arranging the vertical stops extending outward at both ends of the upper part of the traction beam body, the vertical stops have the lifting function.

[0012] In some embodiments, a first mounting hole is further arranged in the middle of the traction beam body, the first mounting hole penetrates through both sides of the traction beam body along the height direction, and the axis direction of the first mounting hole is perpendicular to the length direction of the traction beam body; preferably, the bottom of the first mounting hole is uniformly provided with a plurality of arc-shaped holes.

[0013] In some embodiments, the two vertical stops are symmetrically arranged at both ends of the traction beam body with the axis of the first mounting hole as the symmetric axis, the two transverse stop mounting portions are symmetrically arranged at both ends of the traction beam body with the axis of the first mounting hole as the symmetric axis, and the two longitudinal stops are symmetrically arranged at both sides of the traction beam body with the axis of the first mounting hole as the symmetric axis.

[0014] In some embodiments, two second mounting holes are further arranged on the traction beam body, the first mounting hole penetrates through both sides of the traction beam body along the thickness direction, the two second mounting holes are located between the transverse stop mounting portion and the first mounting hole, and the two second mounting holes are symmetrically arranged on both sides of the first mounting hole with the axis of the first mounting hole as the symmetric axis.

[0015] In some embodiments, the two transverse stop mounting portions each include a vertically arranged transverse stop mounting plate, and the two transverse stop mounting plates are parallel to each other.

[0016] In some embodiments, the two longitudinal stop portions each include a longitudinal stop block, one end of the longitudinal stop block away from the traction beam body is a vertically arranged stop plane, and the two stop planes are parallel to each other.

[0017] In another aspect, a central traction device is provided, including the above-mentioned traction beam, a traction pin seat, and a traction rubber joint; the traction pin seat is mounted on the traction rubber joint, and the traction rubber joint is mounted in the first mounting hole.

[0018] In order to avoid the reduction of the transverse stop gap, in some embodiments, the two transverse stop mounting portions are each mounted with a transverse stop, and the transverse stop extends outward along the length direction of the traction beam body by a distance greater than the distance by which the vertical stop extends outward along the length direction of the traction beam body.

[0019] In some embodiments, the second mounting hole is mounted with a laminated rubber spring.

[0020] In some embodiments, the two sides of the draw pin seat are respectively provided with a transverse damper mounting seat, and the two transverse damper mounting seats are centrally symmetrically distributed with the center line of the draw pin seat; preferably, the two transverse damper mounting seats are integrated with the draw pin seat. The transverse damper mounting seat is integrated with the draw pin seat, which is compact in structure and light in weight without affecting the structural strength.

[0021] Compared with the prior art, the compact design of the lateral stop, the longitudinal stop, the vertical stop and the traction is realized by adopting the technical scheme. On the other hand, by arranging the vertical stops extending outward at the two ends of the upper part of the traction beam body, the vertical stops have the lifting function. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of a traction beam in an embodiment of the present application;

[0023] Figure 2 is a bottom view of Figure 1 ;

[0024] Figure 3 is a structural schematic view of a central traction device in an embodiment of the present application;

[0025] Figure 4 is a sectional view of the central traction device in an embodiment of the present application;

[0026] Figure 5 is a top view of Figure 3 ; DETAILED DESCRIPTION

[0027] In order to better understand the above technical scheme, the above technical scheme will be described in detail below in combination with the drawings of the specification and specific embodiments. Figure 2 In the perspective view, left and right are the length direction of the traction beam body 1, up and down are the thickness direction of the traction beam body 1, and inside to outside is the height direction of the traction beam body 1.

[0028] Embodiment one

[0029] As shown in Figure 1 and Figure 2 , a traction beam comprises a traction beam body 1, two vertical stops 2, two transverse stop mounting parts and two longitudinal stops.

[0030] Among them, the two vertical stops 2 are respectively arranged at the two ends of the upper part of the traction beam body 1 and extend outward along the length direction of the traction beam body 1.

[0031] The two transverse stop mounting portions each include a transverse stop mounting plate 3 arranged vertically. The two transverse stop mounting plates 3 are parallel to each other and are respectively arranged at the two ends of the lower portion of the traction beam body 1 .

[0032] The two longitudinal stops each include a longitudinal stop block 4, which is disposed on either side of the traction beam body 1 in the thickness direction and extends outwardly along the thickness direction of the traction beam body 1. The ends of the longitudinal stop blocks 4 facing away from the traction beam body 1 are vertical stop planes 41, and the two stop planes 41 are parallel to each other.

[0033] A first mounting hole 5 is provided in the middle of the traction beam body 1. The first mounting hole 5 passes through the two side surfaces of the traction beam body 1 along the height direction, and the axial direction of the first mounting hole 5 is perpendicular to the length extension direction of the traction beam body 1. A plurality of arc-shaped holes 51 are evenly provided at the bottom of the first mounting hole 5.

[0034] The two vertical stops 2 are symmetrically arranged at both ends of the traction beam body 1 with the axis of the first mounting hole 5 as the axis of symmetry, the two transverse stop mounting plates 3 are symmetrically arranged at both ends of the traction beam body 1 with the axis of the first mounting hole 5 as the axis of symmetry, and the two longitudinal stop blocks 4 are symmetrically arranged on both sides of the traction beam body 1 with the axis of the first mounting hole 5 as the axis of symmetry.

[0035] Two second mounting holes 6 are provided on the traction beam body 1. The first mounting hole 6 passes through the two side surfaces of the traction beam body 1 along the thickness direction. The two second mounting holes 6 are located between the transverse stop mounting plate 3 and the first mounting hole 5. The two second mounting holes 6 are symmetrically arranged on both sides of the first mounting hole 5 with the axis of the first mounting hole 5 as the axis of symmetry.

[0036] Example 2

[0037] like Figures 3-5 As shown, a central traction device includes the traction beam 1 in the first embodiment, and also includes a traction pin seat 7 and a traction rubber joint 8.

[0038] The traction pin seat 7 is installed on the traction rubber joint 8 by a conical interference fit. After the traction pin seat 7 is pressed into place, the lower cover plate 10, the traction beam 1 and the traction pin seat 7 are fastened together by high-pressure bolts 91 and safety pads 92.

[0039] The traction rubber joint 8 is installed in the first mounting hole 5 with an interference fit. After the traction rubber joint 8 is pressed into place, the snap ring 11 is installed to prevent the traction rubber joint 8 from vertically loosening. Multiple arc-shaped holes 51 evenly distributed at the bottom of the first mounting hole 5 facilitate reverse pressing of the traction rubber joint 8 from the first mounting hole 5.

[0040] The two lateral stop installation plates 3 are each provided with a lateral stop 31, which extends outward along the length direction of the traction beam body 1 by a distance greater than the distance by which the vertical stop 2 extends outward along the length direction of the traction beam body 1.

[0041] The second installation hole 6 is provided with a laminated rubber spring 61.

[0042] The traction pin seat 7 is provided with a lateral damper installation seat 71 on each side thereof, the two lateral damper installation seats 71 are centrally symmetrically distributed about the center line of the traction pin seat 7, and the two lateral damper installation seats 71 are of an integral structure with the traction pin seat 7.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A traction beam, characterized in that: include: Traction beam body; Two vertical stops are respectively provided at both ends of the upper portion of the traction beam body and extend outward along the length direction of the traction beam body, so that the vertical stops also have a lifting function; Two transverse stop mounting portions are respectively provided at both ends of the lower portion of the traction beam body; each of the two transverse stop mounting portions is provided with a transverse stop, wherein the transverse stop extends outwardly along the length direction of the traction beam body by a distance greater than the vertical stop extends outwardly along the length direction of the traction beam body; and Two longitudinal stoppers are respectively arranged on both sides of the traction beam body along the thickness direction and extend outward along the thickness direction of the traction beam body.

2. The traction beam according to claim 1, characterized in that: It also includes a first mounting hole arranged in the middle of the traction beam body, the first mounting hole passes through the two side surfaces of the traction beam body along the height direction, and the axial direction of the first mounting hole is perpendicular to the length extension direction of the traction beam body.

3. The traction beam according to claim 2, characterized in that: The two vertical stops are symmetrically arranged at both ends of the traction beam body with the axis of the first mounting hole as the axis of symmetry, the two horizontal stop mounting parts are symmetrically arranged at both ends of the traction beam body with the axis of the first mounting hole as the axis of symmetry, and the two longitudinal stops are symmetrically arranged on both sides of the traction beam body with the axis of the first mounting hole as the axis of symmetry.

4. The traction beam according to claim 2 or 3, characterized in that: It also includes two second mounting holes arranged on the traction beam body, the first mounting hole passes through the two side surfaces of the traction beam body along the thickness direction, the two second mounting holes are located between the transverse stop mounting portion and the first mounting hole, and the two second mounting holes are symmetrically arranged on both sides of the first mounting hole with the axis of the first mounting hole as the symmetry axis.

5. The traction beam according to any one of claims 1 to 3, characterized in that: The two transverse stop mounting parts each include a transverse stop mounting plate arranged vertically, and the two transverse stop mounting plates are parallel to each other.

6. The traction beam according to any one of claims 1 to 3, characterized in that: The two longitudinal stops each include a longitudinal stop block, one end of the longitudinal stop block facing away from the traction beam body is a stop plane arranged in a vertical direction, and the two stop planes are parallel to each other.

7. The traction beam according to claim 2, characterized in that: A plurality of arc-shaped holes are evenly arranged at the bottom of the first mounting hole.

8. A central traction device, comprising the traction beam according to any one of claims 1 to 7, characterized in that: It also includes a traction pin seat and a traction rubber joint; the traction pin seat is installed on the traction rubber joint, and the traction rubber joint is installed in a first installation hole set in the middle of the traction beam body.

9. The central traction device according to claim 8, characterized in that: Laminated rubber springs are installed on two second mounting holes located between the transverse stop mounting portion and the first mounting hole.

10. The central traction device according to claim 8, characterized in that: A lateral shock absorber mounting seat is provided on each side of the traction pin seat, and the two lateral shock absorber mounting seats are distributed symmetrically with respect to the center line of the traction pin seat.

11. The central traction device according to claim 10, characterized in that: The two lateral vibration damper mounting seats and the traction pin seat are an integrated structure.

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