CN218270550U

CN218270550U - A drift amount detection device for bearing holder

Info

Publication number: CN218270550U
Application number: CN202221923052.2U
Authority: CN
Inventors: 陈斌; 梁汝超; 朱金萍; 马铭
Original assignee: Bahuan Technology Group Co ltd; Bahuan Bearing Changxing Co ltd
Current assignee: Bahuan Technology Group Co ltd; Bahuan Bearing Changxing Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-01-10
Anticipated expiration: 2032-07-25

Abstract

The utility model relates to a bearing processing field specifically discloses a drift amount detection device for bearing holder. The drift amount detection device comprises a machine base, a rotating shaft and a balancing weight, wherein a shaft hole is formed in the balancing weight; the rotating shaft is provided with a retainer limiting unit; during detection, the rotating shaft is inserted into the shaft hole of the balancing weight, a retainer mounting area is formed between the balancing weight and the rotating shaft, the retainer to be detected is arranged in the retainer mounting area, and the retainer limiting unit is used for limiting the position of the retainer to be detected relative to the rotating shaft; the rotating shaft is rotatably and movably arranged on the base; an axial limiting component is arranged between the rotating shaft and the base; the device also comprises a displacement detection assembly, wherein the displacement detection assembly is used for monitoring the axial displacement of the balancing weight relative to the rotating shaft in the detection process. The drift amount detection device has the advantages of simple structure and convenience in use.

Description

Drift amount detection device for needle bearing retainer

Technical Field

The utility model relates to a bearing processing field, concretely relates to drift amount detection device for bearing holder.

Background

The needle bearing is a commonly used high-bearing and is mainly characterized in that a rolling body is in a long cylindrical shape, and the bearing area of the corresponding rolling body is larger, so that high bearing can be realized by a smaller section. Because the rolling body of the needle bearing is in a long cylindrical shape, the axial size of a retainer in the needle bearing is relatively large, and meanwhile, a plurality of annularly distributed pockets are formed in the retainer and are in a long strip shape extending along the axial direction.

The cage is usually machined by the processes of integral turning, pocket punching and spinning locking points. As shown in fig. 1, which is a schematic structural diagram of the cage, since the pocket 02 is in a long strip shape, a certain form and location tolerance exists in the pocket 02 which is difficult to avoid in the process of punching the pocket 02, which is embodied in that a certain inclination amount exists between the length direction of the pocket 02 and the axial direction of the cage 01, that is, an angle α shown in fig. 1. If the cage pocket is seriously inclined during punching, the cage is subjected to the axial thrust action generated by the rolling needle for a long time because the entity keeps adding a certain weight in the bearing running process, particularly under the working condition of high-speed running, and the more serious the cage pocket is inclined, the larger the axial thrust is. Under the long-term action of the axial force of the needle roller, the retainer can generate a certain amount of axial movement, namely the retainer drifts. Therefore, in order to ensure the quality of the component supply, the amount of drift of the cage needs to be detected after the completion of the machining.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a drift volume detection device for bearing holder, have simple structure, convenient to use's advantage.

In order to solve the technical problem, the utility model provides a technical scheme as follows: a drift amount detection device for a needle bearing retainer comprises a machine base, a rotating shaft and a balancing weight, wherein a shaft hole is formed in the balancing weight; the rotating shaft is provided with a retainer limiting unit;

during detection, the rotating shaft is inserted into the shaft hole of the balancing weight, a retainer mounting area is formed between the balancing weight and the rotating shaft, the retainer to be detected is arranged in the retainer mounting area, and the retainer limiting unit is used for limiting the position of the retainer to be detected relative to the rotating shaft; the rotating shaft is rotatably and movably arranged on the base;

an axial limiting component is arranged between the rotating shaft and the base;

the device also comprises a displacement detection assembly, wherein the displacement detection assembly is used for monitoring the axial displacement of the balancing weight relative to the rotating shaft in the detection process.

The rotating shaft is used for installing the retainer and realizing rotary motion, the balancing weight is used for simulating load, and after the rotating shaft rotates for a certain number of turns, the drift amount of the bearing retainer is evaluated according to the axial displacement amount of the balancing weight relative to the rotating shaft.

The drift amount detection device can well simulate the operation condition of the bearing, has a simple structure, is convenient to use, and is suitable for detecting the drift amount of the retainer in small batches.

Preferably, the machine base comprises two supports arranged in parallel, and an operation interval is formed between the two supports; each support is provided with a rotary support assembly, the rotary support assembly comprises two central shafts, the two central shafts are arranged on the supports in parallel, and the central shafts are rotatably and movably connected with support bearings; during detection, the balancing weight is positioned in the operation interval; the rotating shafts are arranged on the corresponding bases through two rotating support assemblies; the axis of rotation axis and the axis parallel arrangement of center pin, just the lateral surface of rotation axis and the lateral surface of two support bearing outer races in the same rotation support subassembly contact simultaneously.

The rotating shaft is arranged on the supporting bearing in a mode of being placed on the supporting bearing, can be conveniently separated from the machine base, carries out the dismounting operation of the retainer and has good use convenience.

Preferably, the axial limiting assembly comprises two limiting blocks arranged on the rotating shaft, and the limiting blocks are annularly arranged; the two limiting blocks are sequentially arranged in the axial direction, and a bearing installation area is formed between the two limiting blocks; during detection, the corresponding support bearing is positioned in the bearing installation interval.

The arrangement of the axial limiting component can ensure that the rotating shaft only rotates in the detection process, axial displacement cannot be generated, the displacement detected by the displacement detection component is the drift amount of the retainer, and the accuracy of the detection structure is ensured.

Preferably, the weight member includes an eccentric.

Preferably, a bearing ring is detachably connected in the shaft hole of the balancing weight. Bearing ring and bearing pin direct contact need better machining precision, and the bearing ring adopts removable form to set up, can be convenient for process and change.

Preferably, the displacement detection assembly comprises a pointer unit arranged on the balancing weight and a displacement scale arranged on the base, and the displacement scale is arranged along the axial direction of the rotating shaft; and in the detection process, the drift amount of the retainer is judged according to the moving distance of the pointer unit relative to the displacement scale.

The drift amount is directly obtained according to the movement of the pointer unit relative to the displacement scale, and the detection result can be intuitively and accurately obtained.

Preferably, the retainer limiting unit comprises two limiting sleeves, and the limiting sleeves are sleeved on the rotating shaft and detachably connected with the rotating shaft; during detection, the limiting sleeves are positioned on two sides of the mounting area of the retainer.

Drawings

FIG. 1 is a schematic structural view of a needle bearing cage;

FIG. 2 is a front view of the drift amount detecting unit for the needle bearing cage of the present embodiment;

FIG. 3 is a side view of the drift amount detecting unit for a needle bearing cage of the present embodiment;

fig. 4 is a plan view of the drift amount detection device for the needle bearing holder according to the present embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

As shown in fig. 2-4, a drift amount detecting device for a needle bearing retainer comprises a machine base 1, a rotating shaft 2 and a balancing weight 6, wherein the balancing weight 6 is provided with a shaft hole. Specifically, the weight 6 may be an eccentric wheel, or may be an assembly formed by connecting a shaft sleeve 61 to a counterweight.

Specifically, as shown in fig. 2 to 4, the machine base 1 includes two parallel supports, and an operation area is formed between the two supports. Each support on be equipped with rotatory supporting component, rotatory supporting component include two center pins, two center pin parallel arrangement on the support, the center pin on rotatory swing joint have support bearing 11.

As shown in fig. 2-4, a holder limiting unit is arranged on the rotating shaft 2, specifically, the holder limiting unit includes two limiting sleeves 4, and the limiting sleeves 4 are sleeved on the rotating shaft 2 and detachably connected with the rotating shaft 2; during detection, the limiting sleeves 4 are positioned on two sides of the retainer mounting section 5.

As shown in fig. 2-4, an axial limiting component 21 is arranged between the rotating shaft 2 and the base 1, the axial limiting component 21 includes two limiting blocks arranged on the rotating shaft 2, and the limiting blocks are arranged in an annular shape. The two limiting blocks are sequentially arranged in the axial direction, and a bearing installation area is formed between the two limiting blocks.

As shown in fig. 2-4, the device further comprises a displacement detecting component 3 for monitoring the axial displacement of the balancing weight 6 relative to the rotating shaft 2 during the detection process.

During detection, the retainer to be detected is sleeved on the rotating shaft 2, the balancing weight 6 is further sleeved on the outer side of the retainer to be detected, and a retainer mounting area 5 is formed between the balancing weight 6 and the rotating shaft 2. The retainer limiting unit is used for limiting the axial movement of the retainer to be measured relative to the rotating shaft 2. The rotation axis 2 set up on the base that corresponds through two rotation support assembly, the axis of rotation axis 2 and the axis parallel arrangement of center pin, just the lateral surface of rotation axis 2 contacts simultaneously with the lateral surface of two support bearing 11 outer lanes in the same rotation support assembly, support bearing 11 that corresponds simultaneously is located the bearing installation interval. The weight 6 is located in the operating range. And finally, the rotating shaft 2 is driven to rotate in a manual or electric mode, and after the rotating shaft 2 rotates for a certain number of turns, the drift amount of the bearing retainer is evaluated according to the axial displacement amount of the balancing weight 6 relative to the rotating shaft 2.

The use convenience is good. The rotating shaft 2 is used for installing a retainer and realizing rotating motion, and the balancing weight 6 is used for simulating load. The rotating shaft 2 is installed in a mode of being placed on the supporting bearing 11, can be conveniently separated from the machine base 1, and is used for dismounting the retainer, the axial limiting component 21 is arranged to ensure that the rotating shaft 2 only rotates in the detection process, axial displacement cannot be generated, the displacement detected by the displacement detection component is the drift amount of the retainer, and the accuracy of the detection structure is ensured.

Further, as shown in fig. 2-4, a bearing ring is detachably connected in the shaft hole of the counterweight block 6. Bearing ring and bearing pin direct contact need better machining precision, and the bearing ring adopts removable form to set up, can be convenient for process and change.

Specifically, as shown in fig. 2 to 4, the displacement detecting assembly includes a pointer unit 32 disposed on the counterweight 6 and a displacement scale 31 disposed on the base 1, and the displacement scale 31 is disposed along the axial direction of the rotating shaft 2. During the detection, the amount of drift of the holder is determined based on the moving distance of the pointer unit 32 relative to the displacement scale 31.

The drift amount is directly obtained from the movement of the pointer unit 32 relative to the displacement scale 31, and the detection result can be intuitively and accurately obtained.

In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a drift volume detection device for bearing holder which characterized in that: the device comprises a machine base, a rotating shaft and a balancing weight, wherein the balancing weight is provided with a shaft hole; the rotating shaft is provided with a retainer limiting unit;

2. The drift amount detection device according to claim 1, characterized in that: the machine base comprises two supports arranged in parallel, and an operation interval is formed between the two supports;

each support is provided with a rotary support assembly, the rotary support assembly comprises two central shafts, the two central shafts are arranged on the supports in parallel, and the central shafts are rotatably and movably connected with support bearings;

during detection, the balancing weight is positioned in the operation interval; the rotating shafts are arranged on the corresponding bases through two rotating support assemblies; the axis of the rotating shaft is parallel to the axis of the central shaft, and the outer side face of the rotating shaft is in contact with the outer side faces of the two supporting bearing outer rings in the same rotating supporting assembly at the same time.

3. The drift amount detection device according to claim 2, characterized in that: the axial limiting assembly comprises two limiting blocks arranged on the rotating shaft, and the limiting blocks are annularly arranged; the two limiting blocks are sequentially arranged in the axial direction, and a bearing installation area is formed between the two limiting blocks;

during detection, the corresponding support bearing is positioned in the bearing installation interval.

4. The drift amount detection device according to claim 1, characterized in that: the balancing weight comprises an eccentric wheel.

5. The drift amount detection device according to claim 1, characterized in that: and a bearing ring is detachably connected in the shaft hole of the balancing weight.

6. The drift amount detection device according to claim 1, characterized in that: the displacement detection assembly comprises a pointer unit arranged on the balancing weight and a displacement scale arranged on the base, and the displacement scale is arranged along the axial direction of the rotating shaft.

7. The drift amount detection device according to any one of claims 1 to 6, wherein: the retainer limiting unit comprises two limiting sleeves, and the limiting sleeves are sleeved on the rotating shaft and detachably connected with the rotating shaft;

during detection, the limiting sleeves are positioned on two sides of the mounting area of the retainer.