Bearing retainer outer diameter measuring device

Abstract

The utility model relates to the technical field of bearing retainer outer diameter measurement, and discloses a bearing retainer outer diameter measuring device, which comprises a bottom plate, a threaded rod, a detection device and an electric push rod, a positive and negative rotation motor is fixed at one end of the threaded rod, a support frame is in threaded connection with the surface of the threaded rod, and a rotating motor is fixed at the bottom end of the support frame. A clamping assembly is fixed to one end of an output shaft of the rotating motor and used for clamping and fixing a bearing retainer, the clamping assembly comprises a connecting disc, the connecting disc is fixed to one end of the output shaft of the rotating motor, four sliding grooves are formed in one end of the connecting disc, clamping blocks slide in inner cavities of the sliding grooves, and limiting columns are fixed to the ends, on the outer sides of the sliding grooves, of the connecting disc. A driven gear is rotationally connected to the surface of the limiting column, four connecting grooves are formed in one end of the driven gear, connecting columns are slidably connected to inner cavities of the connecting grooves, one ends of the connecting columns are fixedly connected with the bottom ends of the clamping blocks, a driving motor is fixed to the other end of the connecting disc, and a driving gear is fixed to one end of an output shaft of the driving motor.

Description

Technical Field

[0001] This utility model relates to the field of bearing cage outer diameter measurement technology, specifically a bearing cage outer diameter measuring device. Background Technology

[0002] Bearing cages are mainly used to guide the rollers within the bearing, and also to support the bearing load and maintain the position of the rollers. Common types include metal cages, polymer cages, and composite material cages. Bearing cage outer diameter measuring devices are mainly used to measure the outer diameter of the bearing cage.

[0003] Chinese Patent Publication No. (CN218584038U) discloses a device for measuring the outer diameter of a thin-walled bearing cage, including a base, a moving device, a fixing device, and a detection device; the fixing device includes a telescopic column, one end of which is fixedly connected to a rotating motor, a turntable is installed at the power output end of the rotating motor, a sliding rod is provided on one side of the turntable, the sliding rod is connected to the turntable through a first electric telescopic rod, and an arc-shaped plate is installed at the other end of the sliding rod;

[0004] The aforementioned comparative document primarily employs four first electric actuators to move four arc-shaped plates, clamping and fixing the inner wall of the bearing cage. While this solution effectively secures the bearing cage, it suffers from the following drawbacks: Firstly, the use of four first electric actuators increases costs, raising the overall production and maintenance costs of the equipment. Secondly, adjusting the distance between the bearing cage and the testing device requires rotating a handle to rotate a threaded rod; however, the handle is relatively far from the testing device, making it difficult for the user to observe whether the bearing cage surface is in contact with the testing device during rotation, resulting in inconvenience.

[0005] In view of this, the present invention solves the above-mentioned technical problems by proposing a bearing cage outer diameter measuring device. Utility Model Content

[0006] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for a bearing cage outer diameter measuring device. Firstly, a novel clamping assembly is designed. This assembly uses a drive motor to rotate a driving gear, which in turn rotates a driven gear. The driven gear then moves four clamping blocks to clamp the inner wall of the bearing cage cavity. This solution simplifies the structure and reduces costs. Secondly, a reversible motor rotates a threaded rod, allowing the user to stand in front of the testing device and control the motor to rotate the threaded rod, which in turn moves the bearing cage. This facilitates observation of whether the bearing cage surface is in contact with the testing device and the measurement data displayed on the device.

[0007] This utility model provides the following technical solution: a bearing cage outer diameter measuring device, comprising a base plate, a threaded rod, a detection device, and an electric push rod;

[0008] One end of the threaded rod is fixed with a forward and reverse motor, and a support frame is threadedly connected to the surface of the threaded rod. A rotary motor is fixed to the bottom end of the support frame, and a clamping assembly is fixed to one end of the output shaft of the rotary motor for clamping and fixing the bearing retainer.

[0009] The clamping assembly includes a connecting plate, which is fixed to one end of the output shaft of a rotary motor. One end of the connecting plate has four sliding grooves, and a clamping block slides inside the inner cavity of each sliding groove. One end of the connecting plate outside the sliding groove is fixed with a limit post, and a driven gear is rotatably connected to the surface of the limit post. One end of the driven gear has four connecting grooves, and a connecting post is slidably connected to the inner cavity of each connecting groove. One end of the connecting post is fixedly connected to the bottom end of the clamping block. The other end of the connecting plate is fixed with a drive motor, and one end of the output shaft of the drive motor is fixed with a driving gear.

[0010] As a preferred embodiment of this utility model, the surface of the threaded rod is rotatably connected to the inner cavity of the base plate, and support columns are fixed at the four corners of the bottom end of the base plate, with a base threadedly connected to the inner cavity of the support column.

[0011] As a preferred embodiment of this utility model, the detection device is installed on the top of the base plate, and a control panel is fixed on the top of the base plate outside the detection device.

[0012] As a preferred embodiment of this utility model, the surface of the clamping block is provided with anti-slip texture.

[0013] As a preferred embodiment of this utility model, the number of clamping blocks is four, and the sliding groove, clamping blocks and connecting groove are all arranged in a circular array.

[0014] In a preferred embodiment of this invention, the driven gear and the driving gear are meshed together, and the sliding groove is T-shaped.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model designs a novel clamping assembly. This assembly drives a drive motor to rotate a driving gear, which in turn drives a driven gear to rotate. Finally, the driven gear drives four clamping blocks to move, thereby clamping the inner wall of the bearing cage cavity. This design simplifies the complex structure of the prior art, which uses four first electric push rods to drive four arc-shaped plates to move. By reducing the number of electric push rods and using a gear transmission system, not only is the manufacturing cost of the equipment reduced, but also the maintenance cost. The gear transmission system has high transmission efficiency and stability, and can maintain a good working condition during long-term use, thereby extending the service life of the equipment.

[0017] 2. This utility model employs a reversible motor to drive a threaded rod when adjusting the distance between the bearing cage and the testing device. The user can stand in front of the testing device and directly operate the reversible motor to rotate the threaded rod, thereby moving the bearing cage. This design solves the problem in the prior art where the threaded rod needs to be rotated by turning a handle. Because the handle is relatively far from the testing device, it is difficult for the user to observe whether the surface of the bearing cage is in contact with the testing device during rotation, which is inconvenient. The design of this utility model allows the user to observe the contact between the surface of the bearing cage and the testing device in real time, as well as the measurement data displayed by the testing device, improving the convenience of operation and the accuracy of measurement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is the front view of the present invention;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a schematic diagram of the driven gear structure of this utility model.

[0022] In the diagram: 1. Base plate; 101. Threaded rod; 102. Detection device; 103. Electric push rod; 2. Forward and reverse motor; 201. Support frame; 202. Rotary motor; 3. Connecting plate; 301. Sliding groove; 302. Clamping block; 303. Limiting post; 304. Driven gear; 305. Connecting groove; 306. Connecting post; 307. Drive motor; 308. Driving gear; 4. Support post; 401. Base; 5. Control panel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1,

[0025] Please see Figure 1-4 As shown, a bearing cage outer diameter measuring device includes a base plate 1, a threaded rod 101, a detection device 102, and an electric push rod 103. A forward / reverse motor 2 is fixed to one end of the threaded rod 101. A support frame 201 is threadedly connected to the surface of the threaded rod 101. A rotary motor 202 is fixed to the bottom end of the support frame 201. A clamping assembly is fixed to one end of the output shaft of the rotary motor 202 for clamping and fixing the bearing cage. The clamping assembly includes a connecting plate 3, which is fixed to one end of the output shaft of the rotary motor 202. Four... A sliding groove 301 has a clamping block 302 slidingly mounted inside its cavity. A limiting post 303 is fixed to one end of a connecting disc 3 on the outer side of the sliding groove 301. A driven gear 304 is rotatably connected to the surface of the limiting post 303. Four connecting grooves 305 are provided at one end of the driven gear 304. A connecting post 306 is slidably connected to the inner cavity of each connecting groove 305. One end of the connecting post 306 is fixedly connected to the bottom end of the clamping block 302. A drive motor 307 is fixed to the other end of the connecting disc 3. A drive gear 308 is fixed to one end of the output shaft of the drive motor 307. The surface of rod 101 is rotatably connected to the inner cavity of base plate 1. Support columns 4 are fixed at the four corners of the bottom of base plate 1. These support columns 4 primarily support base plate 1. A base 401 is threadedly connected to the inner cavity of each support column 4. By rotating the base 401, it can be raised or lowered, thereby adjusting the height or level of the device. The detection device 102 is mounted on the top of base plate 1. A control panel 5 is fixed to the top of base plate 1 outside the detection device 102. The control panel 5... It is mainly used to control the start and stop of the electric push rod 103, the forward and reverse motor 2, the rotary motor 202 and the drive motor 307. The surface of the clamping block 302 is provided with anti-slip texture. By setting the anti-slip texture, the clamping block 302 can play an anti-slip role when clamping the inner wall of the bearing cage cavity. There are four clamping blocks 302. The sliding groove 301, the clamping block 302 and the connecting groove 305 are all arranged in a ring array. The driven gear 304 and the driving gear 308 are meshed. The sliding groove 301 is T-shaped.

[0026] In use, first place the bearing cage on the surface of the clamping block 302, so that the clamping block 302 is in the inner cavity of the bearing cage. Then, start the drive motor 307, which drives the drive gear 308 to rotate. The rotation of the drive gear 308 drives the driven gear 304 to rotate. The rotation of the driven gear 304 drives the four connecting posts 306 to move in the inner cavity of the connecting groove 305. This causes the four connecting posts 306 to drive the four clamping blocks 302 to move outward along the inner cavity of the sliding groove 301, so that the surfaces of the four clamping blocks 302 clamp and fix the inner wall of the bearing cage. After fixing, start the forward and reverse motor 2, which drives the threaded rod 101 to rotate. The rotation of the threaded rod 101 drives the bearing cage to rotate. The support frame 201 and the bearing cage move towards the detection device 102. When the surface of the bearing cage contacts the detection device 102, the forward and reverse motor 2 is turned off, and the rotary motor 202 is started to rotate the bearing cage and measure its outer diameter. During the measurement, the electric push rod 103 can be started to move the bearing cage up and down to measure different positions on the surface of the bearing cage, thus improving the measurement accuracy. When the measurement of the bearing cage is completed, the forward and reverse motor 2 is started again to move the bearing cage away from the detection device 102. Then, the drive motor 307 is started to retract the four clamps 302, and the bearing cage can be removed.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0028] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bearing cage outer diameter measuring device, comprising: The base plate (1), threaded rod (101), detection device (102) and electric push rod (103); The features are as follows: a forward and reverse motor (2) is fixed at one end of the threaded rod (101), a support frame (201) is threadedly connected to the surface of the threaded rod (101), a rotary motor (202) is fixed at the bottom end of the support frame (201), and a clamping assembly is fixed at one end of the output shaft of the rotary motor (202) for clamping and fixing the bearing retainer; The clamping assembly includes a connecting plate (3), which is fixed to one end of the output shaft of a rotary motor (202). One end of the connecting plate (3) has four sliding grooves (301). A clamping block (302) slides in the inner cavity of the sliding groove (301). One end of the connecting plate (3) outside the sliding groove (301) is fixed with a limiting post (303). A driven gear (304) is rotatably connected to the surface of the limiting post (303). One end of the driven gear (304) has four connecting grooves (305). A connecting post (306) slides in the inner cavity of the connecting groove (305). One end of the connecting post (306) is fixedly connected to the bottom end of the clamping block (302). The other end of the connecting plate (3) is fixed with a drive motor (307). One end of the output shaft of the drive motor (307) is fixed with a driving gear (308).

2. The bearing cage outer diameter measuring device according to claim 1, characterized in that: The surface of the threaded rod (101) is rotatably connected to the inner cavity of the base plate (1). Support columns (4) are fixed at the four corners of the bottom end of the base plate (1). The inner cavity of the support column (4) is threadedly connected to the base (401).

3. The bearing cage outer diameter measuring device according to claim 1, characterized in that: The detection device (102) is installed on the top of the base plate (1), and a control panel (5) is fixed on the top of the base plate (1) outside the detection device (102).

4. The bearing cage outer diameter measuring device according to claim 1, characterized in that: The surface of the clamp (302) is provided with anti-slip texture.

5. The bearing cage outer diameter measuring device according to claim 1, characterized in that: The number of clamping blocks (302) is four, and the sliding groove (301), clamping blocks (302) and connecting groove (305) are all arranged in a ring array.

6. The bearing cage outer diameter measuring device according to claim 1, characterized in that: The driven gear (304) and the driving gear (308) are meshed together, and the sliding groove (301) is T-shaped.

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