CN218984642U

CN218984642U - Dismounting device for accompanying test bearing shaft collar of material contact fatigue testing machine

Info

Publication number: CN218984642U
Application number: CN202223439468.XU
Authority: CN
Inventors: 杨依林; 尹福刚; 李俊芝; 宋叙; 李也; 姜长辉; 谢忠明; 于博文; 胡卫平; 高秀娥; 宋涛; 金明新
Original assignee: Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Current assignee: Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-09
Anticipated expiration: 2032-12-22

Abstract

The utility model provides a dismounting device for a companion test bearing shaft collar of a material contact fatigue testing machine, which comprises the following components: the device comprises an upper gland, a lower gland, an upper nut and a lower nut, wherein the upper gland is detachably arranged at a spindle shaft shoulder and is in butt joint with the spindle shaft shoulder, the inner diameter of the upper gland is matched with the outer diameter of the spindle shaft journal, a shaft collar is arranged on an end shaft journal of the spindle in a pressing mode, the lower gland is detachably arranged at the end of the spindle shaft journal and is positioned at the inner side of the shaft collar, the outer diameter of the spindle shaft journal is smaller than the outer diameter of the shaft collar, the inner diameter of the lower gland is matched with the outer diameter of the spindle shaft journal, the upper nut and the lower nut are sleeved on the spindle shaft journal and are positioned between the upper gland and the lower gland, and the upper nut is in threaded connection with the lower nut. The device is simple in structure and convenient for disassembling the accompanying bearing shaft collar of the material contact fatigue testing machine.

Description

Dismounting device for accompanying test bearing shaft collar of material contact fatigue testing machine

Technical Field

The utility model relates to the technical field of bearings, in particular to a device for disassembling a companion test bearing shaft collar of a material contact fatigue testing machine.

Background

The material contact fatigue test generally adopts a thrust ball bearing shaft collar and a rolling body assembly as test pieces, and the shaft collar is installed on a main shaft in a press-fit mode, and the whole shaft head is required to be detached and then the shaft collar is detached because the space is narrow and the operation cannot be performed in the assembly and disassembly process. Therefore, the precision of the whole shaft system is difficult to be ensured to be uniform, and the dismounting device for the accompanying test bearing shaft ring of the material contact fatigue testing machine is designed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a dismounting device for a accompany test bearing shaft collar of a material contact fatigue testing machine.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a material contact fatigue testing machine accompany test bearing collar dismounting device includes: the device comprises an upper gland, a lower gland, an upper nut and a lower nut, wherein the upper gland is detachably arranged at a spindle shaft shoulder and is in butt joint with the spindle shaft shoulder, the inner diameter of the upper gland is matched with the outer diameter of the spindle shaft journal, a shaft collar is arranged on an end shaft journal of the spindle in a pressing mode, the lower gland is detachably arranged at the end of the spindle shaft journal and is positioned at the inner side of the shaft collar, the outer diameter of the spindle shaft journal is smaller than the outer diameter of the shaft collar, the inner diameter of the lower gland is matched with the outer diameter of the spindle shaft journal, the upper nut and the lower nut are sleeved on the spindle shaft journal and are positioned between the upper gland and the lower gland, and the upper nut is in threaded connection with the lower nut.

Further, the upper nut is close to the upper gland and is in butt joint with the upper gland, the lower nut is close to the lower gland and is in butt joint with the lower gland, and the outer circumferential surface of the upper nut is provided with external threads matched with the lower nut.

Further, the aperture of the inner hole of the upper nut is larger than the outer diameter of the shaft collar, the outer diameter of the upper gland is larger than the outer diameter of the upper nut, a first annular groove limiting the upper nut is arranged on the upper gland, the outer diameter of the lower gland is larger than the outer diameter of the lower nut, and a second annular groove limiting the lower nut is arranged on the lower gland.

Further, one end of the upper nut, which is close to the upper gland, is provided with a radial flange, and the radial flange is abutted against the first annular groove.

Further, the upper gland and the lower gland are two semi-annular glands.

Compared with the prior art, the utility model has the beneficial effects that:

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

In the figure: 1. the upper gland, 1.1, the first annular groove, 2, the lower gland, 2.1, the second annular groove, 3, the upper nut, 3.1, the radial flange, 4, the lower nut, 5, the main shaft, 5.1, the main shaft shoulder, 5.2, the main shaft journal, 6, the journal.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

As shown in fig. 1, a dismounting device for a test bearing collar of a material contact fatigue testing machine comprises: the upper gland 1, lower gland 2, upper nut 3 and lower nut 4, upper gland 1 detachable installs in main shaft shoulder 5.1 department and with main shaft shoulder butt, the internal diameter of upper gland 1 and the external diameter looks adaptation of main shaft journal 5.2, the last clamping washer 6 that is pressed to the tip journal of main shaft 5, lower gland 2 detachable installs in the tip of main shaft journal 5.2 and is located the inboard of clamping washer 6, the external diameter of main shaft journal 5.2 is less than the external diameter of clamping washer 6, the internal diameter of lower gland 2 and the external diameter looks adaptation of main shaft journal 5.2, upper nut 3 and lower nut 4 suit are on main shaft journal 5.2, and be located between upper gland 1 and the lower gland 2, upper nut 3 and lower nut 4 threaded connection. Specifically, the upper nut 3 is close to the upper gland 1 and abuts against the upper gland, the lower nut 4 is close to the lower gland 2 and abuts against the lower gland, and external threads matched with the lower nut 4 are arranged on the outer circumferential surface of the upper nut 3.

In another embodiment, the outer circumferential surface of the lower nut is provided with external threads adapted to the upper nut.

In order to facilitate the installation and the disassembly of the upper nut 3, the aperture of the inner hole of the upper nut 3 is larger than the outer diameter of the shaft collar 6, the outer diameter of the upper gland 1 is larger than the outer diameter of the upper nut 3, the upper gland 1 is provided with a first annular groove 1.1 for limiting the upper nut 3, the outer diameter of the lower gland 2 is larger than the outer diameter of the lower nut 4, and the lower gland 2 is provided with a second annular groove 2.1 for limiting the lower nut 4. The end of the upper nut 3, which is close to the upper gland 1, is provided with a radial flange 3.1, and the radial flange 3.1 is abutted against the first annular groove 1.1.

In order to facilitate the installation and the disassembly of the upper gland 1 and the lower gland 2, the upper gland 1 and the lower gland 2 of the embodiment are two semi-annular glands.

When the shaft collar 6 is disassembled, the upper nut 3 and the lower nut 4 are screwed together in the directions close to each other to form a nut assembly, the nut assembly is sleeved on the main shaft 5 from one end of the shaft collar 6, then the two half upper gland covers 1 are clamped on the shaft shoulder 5.1 of the main shaft, and the two half lower gland covers 2 are clamped on the end face of the shaft collar 6. Finally, the upper nut 3 and the lower nut 4 are screwed by a spanner in the directions away from each other, and the shaft collar 6 is pushed down from the main shaft 5 by the travel of the threads of the upper nut 3 and the lower nut 4. The novel detachable connecting rod is simple in structure, time-saving, labor-saving, convenient to detach and easy to operate.

It should be noted that the detailed portions of the present utility model are not described in the prior art.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

In the description of the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a material contact fatigue testing machine accompany test bearing pedestal dismounting device which characterized in that: comprising the following steps: the device comprises an upper gland, a lower gland, an upper nut and a lower nut, wherein the upper gland is detachably arranged at a spindle shaft shoulder and is in butt joint with the spindle shaft shoulder, the inner diameter of the upper gland is matched with the outer diameter of the spindle shaft neck, a shaft collar is pressed on a shaft neck at the end part of the spindle, the lower gland is detachably arranged at the end part of the spindle shaft neck and is positioned at the inner side of the shaft collar, the outer diameter of the spindle shaft neck is smaller than the outer diameter of the shaft collar, the inner diameter of the lower gland is matched with the outer diameter of the spindle shaft neck, the upper nut and the lower nut are sleeved on the spindle shaft neck and are positioned between the upper gland and the lower gland, and the upper nut is in threaded connection with the lower nut.

2. The material contact fatigue testing machine accompany test bearing shaft collar dismounting device as claimed in claim 1, wherein: the upper nut is close to the upper gland and is in butt joint with the upper gland, the lower nut is close to the lower gland and is in butt joint with the lower gland, and the outer peripheral surface of the upper nut is provided with external threads matched with the lower nut.

3. The material contact fatigue testing machine accompany test bearing shaft collar dismounting device as claimed in claim 1, wherein: the aperture of the inner hole of the upper nut is larger than the outer diameter of the shaft collar, the outer diameter of the upper gland is larger than the outer diameter of the upper nut, the upper gland is provided with a first annular groove for limiting the upper nut, the outer diameter of the lower gland is larger than the outer diameter of the lower nut, and the lower gland is provided with a second annular groove for limiting the lower nut.

4. A material contact fatigue testing machine accompany test bearing collar dismounting device as in claim 3 wherein: and one end of the upper nut, which is close to the upper gland, is provided with a radial flange, and the radial flange is abutted to the first annular groove.

5. The material contact fatigue testing machine accompany test bearing collar dismounting device as claimed in any one of claims 1-4, wherein: the upper gland and the lower gland are both two semi-annular glands.