CN220120520U

CN220120520U - Anti-rotation center for bushing endurance test and test device

Info

Publication number: CN220120520U
Application number: CN202321095595.4U
Authority: CN
Inventors: 焦永康
Original assignee: Chengdu Rig Science & Technology Co ltd
Current assignee: Chengdu Rig Science & Technology Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-12-01
Anticipated expiration: 2033-05-08

Abstract

The utility model relates to the technical field of bushing endurance test devices, and provides an anti-rotation center for a bushing endurance test, which comprises a center body, wherein the tip of the center body consists of a plurality of planes; the lining endurance test device is characterized in that an inner steel sleeve, a rubber sleeve and an outer steel sleeve are sequentially arranged on a lining from inside to outside; further comprises: such as anti-rotation tips; the torsion assembly is detachably connected with the anti-rotation center and drives the anti-rotation center to rotate; the axial loading assembly is coaxially arranged with the torsion assembly, and is detachably provided with a movable center, and the movable center and the anti-rotation center jointly clamp the inner steel sleeve; the radial loading assembly is connected with the outer steel sleeve and provides loading force for the outer steel sleeve in the direction perpendicular to the axis of the bushing.

Description

Anti-rotation center for bushing endurance test and test device

Technical Field

The utility model relates to the technical field of bushing endurance test devices, in particular to an anti-rotation center for a bushing endurance test and a test device.

Background

The bushing is used as a wearing part, the mechanical property of the bushing directly relates to whether the quality of the bushing is qualified or not, and the acting force between the inner steel sleeve, the rubber sleeve and the outer steel sleeve is generally detected; the nut and spring pad fastening mode is easy to slip when durable, so that test failure is caused.

Disclosure of Invention

The utility model aims to provide an anti-rotation center and a test device for a bushing endurance test, which are used for solving the problems.

The embodiment of the utility model is realized by the following technical scheme: the anti-rotation center for the bushing endurance test comprises a center body, wherein the tip of the center body consists of a plurality of planes.

Further, the planes are uniformly distributed along the axis of the center body.

Further, the angle alpha between the ridge formed by the adjacent planes and the axis of the center body is more than 25 degrees and less than 65 degrees.

Further, the number of planes is three or more.

The lining endurance test device is characterized in that an inner steel sleeve, a rubber sleeve and an outer steel sleeve are sequentially arranged on a lining from inside to outside; further comprises: such as anti-rotation tips; the torsion assembly is detachably connected with the anti-rotation center and drives the anti-rotation center to rotate; the axial loading assembly is coaxially arranged with the torsion assembly, and is detachably provided with a movable center, and the movable center and the anti-rotation center jointly clamp the inner steel sleeve; and the radial loading assembly is connected with the outer steel sleeve and provides loading force for the outer steel sleeve in the direction perpendicular to the axis of the bushing.

The utility model has at least the following advantages and beneficial effects:

the method comprises the steps that 1, the anti-rotation center for the bushing endurance test is applied, and the rotating torsion load strength is increased by slightly deforming a bushing steel inner core by adopting a multi-edge technology on the premise that the bushing test performance is not affected; the anti-rotation center for the bushing endurance test is simple and quick in clamping product, high in strength, small in abrasion, wide in application range, high in torsion load and not easy to slip.

And 2, the test device for the bushing endurance test simplifies the mounting steps of the bushing and improves the test efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a test apparatus according to the prior art;

fig. 2 is a schematic structural diagram of an anti-rotation center for a bushing endurance test according to the first embodiment;

FIG. 3 is a schematic side view of a anti-rotation center for a bushing endurance test according to the first embodiment;

fig. 4 is a schematic structural diagram of a bush endurance test apparatus according to a second embodiment;

icon: 1-center body, 2-plane, 3-prism, 4-bush, 5-torsion subassembly, 6-axial loading subassembly, 7-radial loading subassembly, 8-application of force spare, 9-C shape mounting.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 2, in this embodiment, an anti-rotation center for a bushing endurance test is mainly disclosed, including a center body 1, wherein the tip of the center body 1 is composed of a plurality of planes 2 to form a polygon prism 3 structure, for example, three prism structures composed of three planes 2, four prism structures composed of four planes 2, five prism structures composed of five planes 2, and so on, the prisms 3 should be uniformly distributed along the axis of the center body 1, as shown in fig. 2, namely, five prism structures composed of 5 planes 2, and all prisms 3 should be collected at one point to form the center no matter how the number of prisms 3 is changed.

The tips of the prisms 3 are abutted on the inner steel sleeve, the rotating torsion load strength is increased through the structure of the prisms 3, and then force or torque is applied to the outer steel sleeve, so that the performance between the inner steel sleeve and the outer steel sleeve is detected.

Preferably, in this embodiment, as shown in fig. 3, the edges formed by the adjacent planes 2 form an angle of 30 ° with the axis of the tip body 1, and the angle is matched with the pentagonal prism 3 structure to ensure the contact strength, and at the same time, the contact strength does not cause larger damage to the inner steel sleeve, and on the premise of not affecting the test performance of the bushing 4, the slight deformation of the steel inner core of the bushing 4 is increased in proportion to the increase of the axial load, and the rotational torsion load strength is also increased in proportion.

Example two

As shown in fig. 4, in this embodiment, a device for testing the durability of the bushing 4 is also disclosed, wherein the bushing 4 is provided with an inner steel sleeve, a rubber sleeve and an outer steel sleeve in sequence from inside to outside; further comprises: anti-rotation center for bushing endurance test; the torsion assembly 5 is detachably connected with the anti-rotation center and drives the anti-rotation center to rotate; an axial loading assembly 6 and a radial loading assembly 7 coaxially disposed with the torsion assembly 5; the axial loading assembly 6 is detachably provided with a movable center, and the movable center and the anti-rotation center jointly clamp the inner steel sleeve; the radial loading assembly 7 is connected to the outer steel jacket and applies a loading force to the outer steel jacket in a direction perpendicular to the axis of the bushing 4.

In the test process, on the premise of not affecting the test performance of the bushing 4, the rotating torsion load strength is increased by slightly deforming the steel inner core of the bushing 4 by adopting the polygon prism 3 technology; the anti-rotation center for the bushing endurance test is simple and quick in clamping product, high in strength, small in abrasion, wide in application range, high in torsion load and not easy to slip.

Preferably, the bushing 4 can be simultaneously loaded in both torsion and radial directions; the radial loading strength is irrelevant to the size of the inner hole of the steel inner core of the bushing 4; through this device, same top can adapt to the different products of bush 4 steel inner core hole.

Finally, it should be noted that the radial loading assemblies and the axial loading assemblies are all in the prior art, for example: the radial loading assembly 7 is driven in a hydraulic mode, the axial loading assembly 6 is driven in a hydraulic mode, and the torsion assembly 5 is driven by a motor.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a bush endurance test device, includes prevents the rotating center, bush (4) are equipped with interior steel bushing, rubber sleeve and outer steel bushing in proper order from inside to outside, its characterized in that, prevent rotating center includes top body (1), the tip of top body (1) comprises a plurality of planes (2), plane (2) with the axis evenly distributed of top body (1), adjacent the stupefied of plane (2) and the axis of top body (1) become alpha angle, 25 is less than alpha < 65, the quantity of plane (2) is greater than or equal to three;

further comprises:

the torsion assembly (5) is detachably connected with the anti-rotation center and drives the anti-rotation center to rotate;

the axial loading assembly (6) is coaxially arranged with the torsion assembly (5) and is detachably provided with a movable center, and the movable center and the anti-rotation center jointly clamp the inner steel sleeve;

and a radial loading assembly (7) which is connected with the outer steel sleeve and provides loading force for the outer steel sleeve in the direction perpendicular to the axis of the bushing (4).