CN210760782U

CN210760782U - Assembly coat of axle box pull rod ball pivot

Info

Publication number: CN210760782U
Application number: CN201921394683.8U
Authority: CN
Inventors: 李东阁; 杨哲; 李刚; 兰加标; 冯万盛
Original assignee: Zhuzhou Times New Material Technology Co Ltd
Current assignee: Zhuzhou Times New Material Technology Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-06-16
Anticipated expiration: 2029-08-27

Abstract

An assembly outer sleeve of an axle box pull rod spherical hinge is characterized in that the axle box pull rod spherical hinge comprises an outer sleeve, a rubber body and a mandrel, sawteeth are arranged on the mandrel, and the rubber body is vulcanized between the mandrel and the outer sleeve; the inner side of the outer sleeve is provided with a transverse structure and a longitudinal structure, and the transverse structure on the inner side of the outer sleeve is provided with sleeve teeth matched with the saw teeth of the mandrel. The utility model discloses constitute by overcoat, dabber and the rubber body, no split overcoat, dabber and the equipment mode of overcoat in the mould adopt to close equipment, simple structure soon. And the outer sleeve, the rubber body and the mandrel are vulcanized into a whole, so that the structure is more compact and stable. And the longitudinal rigidity and the transverse rigidity of the axle box pull rod spherical hinge can meet the actual requirements, and the deflection rigidity of the axle box pull rod spherical hinge can also meet the actual requirements.

Description

Assembly coat of axle box pull rod ball pivot

Technical Field

The utility model relates to a track traffic field, concretely relates to overcoat of axle box pull rod ball pivot.

Background

The spherical hinge type rubber elastic element is a commonly used rubber metal composite vibration damping element, can be widely applied to various vibration damping places, and is particularly widely applied to a bogie of a locomotive vehicle. The existing structure generally comprises four main parts, namely an integral jacket, a split jacket, a mandrel and a rubber body, and the split jacket mostly adopts a three-segment type or four-segment type, so that the split jacket is complex in assembly, and the structure is not compact and stable enough.

Particularly, the existing split structure is difficult to greatly reduce the longitudinal rigidity and the transverse rigidity of the axle box pull rod ball hinge, and in order to reduce the rim abrasion and the capability of passing curves of a locomotive, particularly in a country like switzerland with more curves and ramps of railway lines, the longitudinal rigidity and the transverse rigidity of the axle box pull rod ball hinge need to be reduced, but the deflection rigidity still needs to be kept at higher rigidity.

When the axle box pull rod spherical hinge is set to be an integral forming structure without split, if the outer sleeve is directly set to be a round pipe with a smooth inner wall, the deflection rigidity of the axle box pull rod spherical hinge can be greatly reduced, and the deflection rigidity of the axle box pull rod spherical hinge can not meet the actual requirement. Therefore, when the structures of the mandrel and the rubber body of the axle box pull rod spherical hinge are changed, the longitudinal rigidity and the transverse rigidity of the axle box pull rod spherical hinge can meet the actual requirements, the structure of the outer sleeve of the existing axle box pull rod spherical hinge also needs to be changed, and the deflection rigidity of the axle box pull rod spherical hinge can also meet the actual requirements.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: how to simplify the structure of the axle box pull rod spherical hinge, and make the longitudinal rigidity and the transverse rigidity of the axle box pull rod spherical hinge reduced to meet the actual requirement, and make the deflection rigidity of the axle box pull rod spherical hinge still keep higher rigidity.

In view of the above problems, the utility model provides a technical scheme is: an assembly outer sleeve of an axle box pull rod spherical hinge comprises an outer sleeve, a rubber body and a mandrel, wherein sawteeth are arranged on the mandrel, and the rubber body is vulcanized between the mandrel and the outer sleeve; the inner side of the outer sleeve is provided with a transverse structure and a longitudinal structure, and the transverse structure on the inner side of the outer sleeve is provided with sleeve teeth matched with the saw teeth of the mandrel.

Furthermore, the jacket comprises a jacket body and jacket teeth, the jacket body is in a circular tube shape, and the jacket teeth are only arranged on the transverse structure on the inner side of the jacket body.

Further, the sleeve teeth are integrally formed on the inner side of the sleeve body, and the angle of the sleeve teeth distributed in the circumferential direction of the outer sleeve is smaller than 90 degrees.

Furthermore, the sleeve teeth are formed by saw teeth which are inwards concave and outwards convex in an alternating mode, and the sections of the inwards concave sleeve teeth and the outwards convex sleeve teeth are trapezoidal.

Further, the outside of dabber also is equipped with horizontal structure and longitudinal structure, and the horizontal structure outside the dabber is: a shaft long tooth is arranged in the transverse direction of the mandrel; the longitudinal structure of the outer side of the mandrel is as follows: the short teeth of the mandrel are arranged in the longitudinal direction of the mandrel; and the height of the long shaft teeth is greater than that of the short shaft teeth.

Further, the shaft length teeth are integrally formed on the outer side of the mandrel, and the angle of the shaft length teeth in the circumferential direction of the mandrel is smaller than 90 degrees; the short shaft teeth are integrally formed on the outer side of the mandrel, and the angle of the short shaft teeth in the circumferential direction of the mandrel is larger than 90 degrees.

The utility model has the advantages that:

1. the original structure is composed of an integral outer sleeve, a split outer sleeve, a mandrel and rubber, the new structure is only composed of the outer sleeve, the mandrel and the rubber body, the split outer sleeve is not arranged, the mandrel and the outer sleeve are assembled in a mold in a screwing assembly mode, and the structure is simple. The outer sleeve, the rubber body and the mandrel are vulcanized into a whole, so that the structure is more compact and stable;

2. the original structure is that the mandrel and the outer sleeve are meshed in a tooth form, the tooth form design is a circle, the new structure is used for achieving the purpose of reducing the longitudinal rigidity, the mandrel and the outer sleeve are meshed in the tooth form, but the meshing tooth form of the mandrel and the outer sleeve is 80 degrees, the outer sleeve is left with 100 degrees and has no tooth form, the mandrel is left with 100 degrees of tooth height and is reduced, the longitudinal rigidity is reduced, and the deflection rigidity of the axle box pull rod ball hinge is still kept at high rigidity.

Drawings

FIG. 1 is a schematic 90-degree cross-sectional view of a draw bar ball joint of a middle axle box according to an embodiment;

FIG. 2 is a schematic cross-sectional view of the mandrel in a front elevation;

FIG. 3 is a schematic sectional view taken along line A-A of FIG. 2;

FIG. 4 is a first cross-sectional view of the jacket taken along the right direction;

FIG. 5 is a schematic 90-degree cross-sectional view of B-O-B of FIG. 4;

FIG. 6 is a right-side sectional view of the outer cover;

in the figure: 11 longitudinal glue bodies, 111 adjusting holes, 112 glue body short teeth, 12 transverse glue bodies, 21 sleeve bodies, 22 sleeve teeth, 31 shaft bodies, 32 shaft short teeth and 33 shaft long teeth.

Detailed Description

The invention is further described below with reference to the following examples and figures:

example one

As shown in fig. 1, 2 and 3, the axlebox drag link ball pivot comprises an outer sleeve, a rubber body and a mandrel, wherein the rubber body is vulcanized between the mandrel and the outer sleeve. The outer sleeve, the rubber body and the mandrel are all provided with a transverse structure and a longitudinal structure, and sawteeth are arranged on the outer sides of the transverse structure and the longitudinal structure of the mandrel and the inner side of the transverse structure of the outer sleeve. The teeth of the mandrel comprise short teeth 32 and long teeth 33, and the outer teeth are set teeth 22. In this embodiment, the left and right directions of the spindle in fig. 3 are longitudinal directions, the up and down directions are transverse directions, the upper direction in fig. 1 is the transverse direction of the axle box drawbar ball joint, and the lower direction is the longitudinal direction.

The mandrel includes a shaft body 31, shaft short teeth 32, and shaft long teeth 33, and the shaft short teeth 32 and the shaft long teeth 33 are provided in the circumferential direction of the shaft body 31. The shaft body 31 is provided at both ends in the lateral direction with shaft long teeth 33, and the shaft body 31 is provided at both ends in the longitudinal direction with shaft short teeth 32, and the height of the shaft long teeth 33 is greater than that of the shaft short teeth 32. As shown in fig. 3, the angle of the long shaft teeth 33 in the circumferential direction of the mandrel is an angle E, and preferably, the angle of the long shaft teeth 33 in the circumferential direction of the mandrel is 80 degrees, and the angle of the short shaft teeth 32 in the circumferential direction of the mandrel is 100 degrees.

As shown in fig. 1, 2, 4, 5 and 6, the outer sleeve includes a sleeve body 21 and a set of teeth 22, the sleeve body 21 is in a circular tube shape, the set of teeth 22 are arranged on two sides of the inner side of the sleeve body 21 in the transverse direction, and the set of teeth 22 are not arranged on two ends of the inner side of the sleeve body 21 in the longitudinal direction. The angle at which the jacket is not provided with a set tooth 22 in the circumferential direction is an angle F, preferably an angle of 100 degrees, and the angle at which the jacket is provided with a set tooth 22 in the circumferential direction is 80 degrees.

The transverse colloid 12 and the longitudinal colloid 11 on the inner side of the rubber body are vulcanized with the long shaft teeth 33 and the short shaft teeth 32 of the mandrel respectively, and the inner side of the longitudinal colloid 11 and the short shaft teeth 32 of the mandrel are vulcanized into a whole to form colloid short teeth 112 which are attached with the short shaft teeth 32. The transverse colloid 12 and the longitudinal colloid 11 outside the rubber body are respectively vulcanized with the sleeve teeth 22 and the sleeve body 21 inside the outer sleeve. The long shaft teeth 33 and the short shaft teeth 32 are both saw-toothed shapes which are mutually alternate and protrude towards the mandrel, and preferably, the sections of the long shaft teeth 33 and the short shaft teeth 32 which are sunken towards the mandrel and protrude towards the mandrel are both trapezoidal. Similarly, the sleeve teeth 22 are formed by zigzag shapes in which inward depressions and outward projections alternate with each other, and preferably, the cross sections of the inward depressions and outward projections 22 are also formed in a trapezoidal shape matching the shape and size of the axial long teeth 33. In the transverse direction of the axle box pull rod ball hinge, the part of the long shaft tooth 33 protruding outwards corresponds to the part of the sleeve tooth 22 protruding inwards, and the part of the long shaft tooth 33 protruding inwards corresponds to the part of the sleeve tooth 22 protruding outwards.

As shown in fig. 1 to 6, if the axial length teeth 33 in the transverse direction of the mandrel and the sleeve teeth 22 in the transverse direction of the sleeve are aligned, the axial length teeth 33 and the sleeve teeth 22 interfere with each other, and the mandrel cannot be advanced into the sleeve. The assembly process of the pedestal stay ball joint is thus as follows: firstly aligning the shaft length teeth 33 in the transverse direction of the mandrel with the parts of the outer sleeve, which are not provided with the sleeve teeth 22, pushing the mandrel into the outer sleeve, then screwing the mandrel and the outer sleeve to enable the shaft length teeth 33 on the transverse structure of the mandrel and the sleeve teeth 22 on the transverse structure of the outer sleeve to be mutually meshed, and vulcanizing rubber between the mandrel and the outer sleeve, thereby completing the assembly of the axle box pull rod spherical hinge.

After the mandrel and the outer sleeve are screwed, the axial length teeth 33 of the mandrel are meshed with the sleeve teeth 22 of the outer sleeve, and certain gaps are reserved between the mandrel and the outer sleeve in the transverse direction, the longitudinal direction and the axial direction. And rubber is injected into the gap and vulcanized between the mandrel and the outer sleeve, so that the outer sleeve, the rubber body and the mandrel form a seamless connection axle box pull rod spherical hinge with an integral structure. Therefore, when the mandrel and the outer sleeve deflect relatively, the sleeve teeth 22 of the outer sleeve are blocked by the rubber body and the shaft length teeth 33, so that the axle-link ball joint has larger deflection rigidity.

It will be apparent that modifications and variations are possible without departing from the principles of the invention.

Claims

1. An assembly outer sleeve of an axle box pull rod spherical hinge is characterized in that the axle box pull rod spherical hinge comprises an outer sleeve, a rubber body and a mandrel, sawteeth are arranged on the mandrel, and the rubber body is vulcanized between the mandrel and the outer sleeve; the inner side of the outer sleeve is provided with a transverse structure and a longitudinal structure, and the transverse structure on the inner side of the outer sleeve is provided with sleeve teeth matched with the saw teeth of the mandrel.

2. The assembly sleeve of the axle box draw-bar ball hinge of claim 1, wherein the sleeve comprises a sleeve body and a sleeve tooth, the sleeve body is in a circular tube shape, and the sleeve tooth is only arranged on the transverse structure at the inner side of the sleeve body.

3. The assembly sleeve of the draw bar ball hinge of the axle box as claimed in claim 2, wherein the sleeve teeth are integrally formed on the inner side of the sleeve body, and the angle of the sleeve teeth distributed in the circumferential direction of the sleeve is less than 90 degrees.

4. The assembly cover of the box-drag link ball hinge according to any one of claims 1 to 3, wherein the sleeve teeth are formed by saw teeth which are alternately concave inwards and convex outwards, and the cross section of the concave inwards and convex outwards sleeve teeth is trapezoidal.

5. The assembly jacket of the draw-bar ball hinge of the axle box as claimed in claim 4, wherein the outside of the mandrel is also provided with a transverse structure and a longitudinal structure, and the transverse structure outside the mandrel is as follows: a shaft long tooth is arranged in the transverse direction of the mandrel; the longitudinal structure of the outer side of the mandrel is as follows: the short teeth of the mandrel are arranged in the longitudinal direction of the mandrel; and the height of the long shaft teeth is greater than that of the short shaft teeth.

6. The assembly jacket of the draw bar ball hinge of the axle box as claimed in claim 5, wherein the axle length teeth are integrally formed on the outer side of the mandrel, and the angle of the axle length teeth in the circumferential direction of the mandrel is less than 90 degrees; the short shaft teeth are integrally formed on the outer side of the mandrel, and the angle of the short shaft teeth in the circumferential direction of the mandrel is larger than 90 degrees.