A bearing clearance detection device

Abstract

This utility model relates to the field of bearing clearance detection technology, and proposes a bearing clearance detection device, including a base frame, a detection platform fixedly connected to the top of the base frame, a support mechanism on the top of the detection platform, and a plurality of guide seats fixedly connected to the top of the detection platform. Movable rods are slidably connected to the inner sides of the guide seats, limit blocks are fixedly connected to the middle of the movable rods, and a support plate is fixedly connected to the top of the movable rods. An adjusting component is provided at the bottom of the detection platform, a positioning mechanism is provided at the center of the detection platform, and a detection mechanism for detecting bearing clearance is provided at one end of the detection platform. This utility model uses the adjusting component to drive multiple movable rods to move radially synchronously, causing the support plate to form a support platform with an adjustable diameter, eliminating the need to change clamps and achieving the versatility of the lifting device.

Description

Technical Field

[0001] This utility model relates to the field of bearing clearance detection technology, specifically, to a bearing clearance detection device. Background Technology

[0002] The clearance between the inner and outer rings of a bearing and its intermediate rolling elements directly affects the mechanical product's vibration, shaft runout, and rotational flexibility. Accurately measuring the radial clearance of a bearing and controlling it within the specified range is essential for bearing manufacturers. However, the structure of clearance testing equipment on the market is relatively complex, making it difficult for workshop inspectors to operate it accurately and achieve ideal testing results.

[0003] In response, Chinese Patent (Publication No.: CN210512952U) discloses "a bearing clearance detection device, including a detection platform, a lower boss installed in the middle of the detection platform, a support rod welded to one side of the detection platform, and a magnetic seat magnetically connected to the other side of the detection platform; a cylinder is installed on the top of the support rod, the output shaft of the cylinder has an upper boss that matches the lower boss, a hydraulic cylinder is installed on one side of the support rod, a U-shaped frame is welded to the output shaft of the hydraulic cylinder, and a roller is rotatably installed inside the U-shaped frame; a fixing rod is installed on the magnetic seat, a slider is slidably sleeved on the outside of the fixing rod, a connecting rod is welded to one side of the slider, and a dial indicator is installed at the end of the connecting rod."

[0004] However, this type of technical solution has certain technical defects during implementation:

[0005] First, the patent fixes the bearing by using a lower boss and an upper boss that match the inner ring of the bearing to be tested. This fixed-size support structure can only be used for bearings of a specific diameter. For bearings with different inner or outer diameters, special fixtures or mechanical parts need to be replaced or adjusted. This not only increases the complexity of operation but also reduces the testing efficiency. In mass production, frequent tooling changes lead to longer downtime and increased costs.

[0006] Secondly, the existing bearing positioning system lacks automated control, requiring operators to repeatedly calibrate the bearing position, which easily introduces human error. Furthermore, the positioning mechanism lacks stability, making the bearing prone to shifting during testing, affecting the accuracy of the dial indicator readings and resulting in unreliable clearance measurement results.

[0007] In view of this, the present invention proposes a bearing clearance detection device. Summary of the Invention

[0008] This invention proposes a bearing clearance detection device, which solves the problem in the prior art that it is impossible to locate bearings of different diameters.

[0009] The technical solution of this utility model is as follows: A bearing clearance detection device includes a base frame, a detection platform fixedly connected to the top of the base frame, a support mechanism provided on the top of the detection platform, the support mechanism including a plurality of top guide seats distributed at equal angles around the center of the detection platform, the plurality of guide seats being fixedly connected to the top of the detection platform, movable rods slidably connected to the inner sides of the plurality of guide seats, limiting blocks fixedly connected to the middle of the plurality of movable rods, the plurality of limiting blocks being slidably connected to the top wall of the corresponding guide seat, a support plate for placing bearings fixedly connected to the top of the plurality of movable rods, an adjusting component for driving the plurality of movable rods to move towards or away from each other provided at the bottom of the detection platform, a positioning mechanism for fixing the bearing provided at the center of the detection platform, and a detection mechanism for detecting bearing clearance provided at one end of the detection platform.

[0010] Preferably, the adjusting component includes a motor fixedly installed inside the base frame, the output shaft of the motor is fixedly connected to a lead screw, the lead screw is threadedly connected to a collar, and the outer side of the collar is hinged with a plurality of connecting rods corresponding one-to-one with the movable rods, the top ends of the plurality of connecting rods being hinged to the corresponding movable rods.

[0011] Preferably, the testing platform has a plurality of sliding grooves corresponding one-to-one with the movable rods, and the plurality of movable rods are fitted with the corresponding sliding grooves with clearance.

[0012] Preferably, the positioning mechanism includes an internally threaded sleeve fixedly connected to the center position of the testing table, a screw threadedly connected to the inner side of the internally threaded sleeve, a positioning seat rotatably connected to the top of the screw, the screw passing through the positioning seat and extending above the positioning seat, a rotating head fixedly connected to the top of the screw, and the positioning seat inserted into the inner side of the bearing.

[0013] Preferably, the positioning seat is a frustum structure that is wider at the top and narrower at the bottom, with the bottom diameter of the positioning seat being smaller than the inner diameter of the bearing and the top diameter of the positioning seat being larger than the inner diameter of the bearing.

[0014] Preferably, the testing mechanism includes a rotating shaft rotatably connected to the top of the testing platform, a mounting base fixedly connected to the top of the rotating shaft, a dial indicator fixedly connected to one end of the mounting base, and a manual component for driving the rotating shaft to rotate at the bottom end of the rotating shaft.

[0015] Preferably, the manual component includes a worm gear fixedly connected to the bottom of the rotating shaft, a worm gear meshing with the worm gear is rotatably connected to the bottom of the testing platform, and a handwheel is fixedly connected to one end of the worm gear.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] 1. By driving multiple movable rods to move radially synchronously through the adjustment component, the pallet is formed into a support platform with an adjustable diameter. There is no need to change the fixture. A single adjustment can support bearings of different specifications, which greatly improves the inspection efficiency. It is especially suitable for batch production of multiple models.

[0018] 2. The positioning seat adopts a frustum structure that is wider at the top and narrower at the bottom. By rotating the head to control the screw to press down, the positioning seat and the inner ring of the bearing are self-lockingly fixed. This can cover a variety of inner diameter sizes and avoid the problem of frequent replacement of traditional fixed bosses. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of a bearing clearance detection device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the support mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the adjusting component of this utility model;

[0023] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the testing mechanism of this utility model;

[0025] Figure 6 This is a structural schematic diagram of the manual component of this utility model.

[0026] In the diagram: 1. Base frame; 2. Testing table; 3. Support mechanism; 31. Guide seat; 32. Movable rod; 33. Limit block; 34. Support plate; 35. Adjusting component; 351. Motor; 352. Lead screw; 353. Collar; 354. Connecting rod; 355. Slide groove; 4. Bearing; 5. Positioning mechanism; 51. Positioning seat; 52. Screw; 53. Internal threaded sleeve; 54. Rotating head; 6. Testing mechanism; 61. Rotating shaft; 62. Mounting seat; 63. Dial indicator; 64. Manual component; 641. Worm gear; 642. Worm; 643. Handwheel. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0028] like Figures 1-6 As shown, this embodiment proposes a bearing clearance detection device, including a base frame 1, a detection platform 2 fixedly connected to the top of the base frame 1, a support mechanism 3 provided on the top of the detection platform 2, the support mechanism 3 including a plurality of top guide seats 31 distributed at equal angles around the center of the detection platform 2, the plurality of guide seats 31 being fixedly connected to the top of the detection platform 2, the inner side of the plurality of guide seats 31 being slidably connected to movable rods 32 penetrating the guide seats 31, the middle of the plurality of movable rods 32 being fixedly connected to limit blocks 33, the plurality of limit blocks 33 being slidably connected to the top wall of the corresponding guide seats 31, the top of the plurality of movable rods 32 being fixedly connected to a support plate 34 for placing bearings 4, the bottom of the detection platform 2 being provided with an adjusting member 35 for driving the plurality of movable rods 32 to move towards or away from each other, the center position of the detection platform 2 being provided with a positioning mechanism 5 for fixing the bearings 4, and one end of the detection platform 2 being provided with a detection mechanism 6 for detecting the clearance of the bearings 4.

[0029] By operating the adjusting component 35, several movable rods 32 are driven to move towards or away from each other, causing the distance between several support plates 34 and the center position of the testing table 2 to change. This can be adjusted according to bearings of different diameters. By adjusting the distance between several support plates 34 and the center position, the support plates 34 can support the bearings, thus meeting the support requirements of bearings of different diameters and greatly improving the versatility of the device.

[0030] Furthermore, the adjusting component 35 includes a motor 351 fixedly installed inside the base frame 1. The motor 351 is a servo motor. The output shaft of the motor 351 is fixedly connected to a lead screw 352. The lead screw 352 is threadedly connected to a collar 353. Several connecting rods 354 corresponding to the movable rods 32 are hinged to the outer side of the collar 353. The top ends of the connecting rods 354 are hinged to the corresponding movable rods 32. Several sliding grooves 355 corresponding to the movable rods 32 are provided on the testing table 2. The movable rods 32 are clearance-fitted with the corresponding sliding grooves 355.

[0031] By starting the motor 351, the lead screw 352 is driven to rotate, allowing the collar 353 to move up or down along the axis of the lead screw 352. This causes several connecting rods 354 to drive several movable rods 32 to move in opposite directions, resulting in changes in the distance between several support plates 34 and the center position of the testing table 2. This allows for adjustment based on bearings of different diameters. By adjusting the distance between the several support plates 34 and the center position, the support plates 34 can support the bearings, thus satisfying the support requirements of bearings of different diameters.

[0032] Furthermore, the positioning mechanism 5 includes an internally threaded sleeve 53 fixedly connected to the center of the testing table 2. A screw 52 is threadedly connected to the inner side of the internally threaded sleeve 53. A positioning seat 51 is rotatably connected to the top of the screw 52. The screw 52 passes through the positioning seat 51 and extends above the positioning seat 51. A rotating head 54 is fixedly connected to the top of the screw 52. The positioning seat 51 is inserted into the inner side of the bearing 4. The positioning seat 51 has a frustum structure that is wider at the top and narrower at the bottom. The bottom diameter of the positioning seat 51 is smaller than the inner diameter of the bearing 4, and the top diameter of the positioning seat 51 is larger than the inner diameter of the bearing 4.

[0033] After the support plate 34 supports the bearing 4, the screw 52 is inserted into the inner thread sleeve 53 by inserting the positioning seat 51 into the inner side of the bearing 4. Then, the screw 52 is rotated by rotating the rotating head 54, causing the screw 52 to move downward, so that the positioning seat 51 moves downward and presses and fixes the bearing 4. The frustum structure design of the positioning seat 51 can stably fix bearings 4 of different diameters, improving the versatility of the device.

[0034] Furthermore, the testing mechanism 6 includes a rotating shaft 61 rotatably connected to the top of the testing platform 2. A mounting base 62 is fixedly connected to the top of the rotating shaft 61. A dial indicator 63 is fixedly connected to one end of the mounting base 62. A manual component 64 for driving the rotating shaft 61 to rotate is provided at the bottom of the rotating shaft 61. The manual component 64 includes a worm gear 641 fixedly connected to the bottom of the rotating shaft 61. A worm 642 that meshes with the worm gear 641 is rotatably connected to the bottom of the testing platform 2. A handwheel 643 is fixedly connected to one end of the worm 642.

[0035] By turning the handwheel 643, the worm gear 642 is driven to rotate, which in turn causes the worm wheel 641 to drive the rotating shaft 61 to rotate synchronously. This causes the mounting base 62 to drive the dial indicator 63 to rotate, thus allowing the angle of the dial indicator 63 to be adjusted to meet the clearance detection requirements of bearings of different diameters.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A bearing clearance detection device, comprising a chassis (1), a detection table (2) is fixedly connected to the top of the chassis (1), characterized in that, The top of the testing platform (2) is provided with a support mechanism (3). The support mechanism (3) includes several top guide seats (31) distributed at equal angles around the center of the testing platform (2). The guide seats (31) are fixedly connected to the top of the testing platform (2). The inner side of the guide seats (31) is slidably connected with movable rods (32) that pass through the guide seats (31). The middle part of the movable rods (32) is fixedly connected with limit blocks (33). The limit blocks (33) are slidably connected to the top wall of the corresponding guide seats (31). The top of the movable rods (32) is fixedly connected with a support plate (34) for placing the bearing (4). The bottom of the testing platform (2) is provided with an adjusting member (35) for driving the movable rods (32) to move towards or away from each other. The center position of the testing platform (2) is provided with a positioning mechanism (5) for fixing the bearing (4). One end of the testing platform (2) is provided with a testing mechanism (6) for testing the clearance of the bearing (4).

2. A bearing clearance detection device according to claim 1, wherein The adjusting component (35) includes a motor (351) fixedly installed inside the base frame (1). The output shaft of the motor (351) is fixedly connected to a lead screw (352). The lead screw (352) is threadedly connected to a collar (353). The outer side of the collar (353) is hinged with several connecting rods (354) corresponding to the movable rods (32). The top ends of the several connecting rods (354) are hinged to the corresponding movable rods (32).

3. A bearing clearance detection device according to claim 1, wherein The testing platform (2) is provided with a number of sliding grooves (355) that correspond one-to-one with the movable rods (32), and the movable rods (32) are fitted with the corresponding sliding grooves (355) with a clearance.

4. The bearing clearance detection device of claim 1, wherein The positioning mechanism (5) includes an internal threaded sleeve (53) fixedly connected to the center of the testing table (2). The internal threaded sleeve (53) is threaded with a screw (52) on its inner side. The top of the screw (52) is rotatably connected to a positioning seat (51). The screw (52) passes through the positioning seat (51) and extends above the positioning seat (51). The top of the screw (52) is fixedly connected to a rotating head (54). The positioning seat (51) is inserted into the inner side of the bearing (4).

5. A bearing clearance detection device according to claim 4, wherein The positioning seat (51) is a frustum structure that is wider at the top and narrower at the bottom. The bottom diameter of the positioning seat (51) is smaller than the inner diameter of the bearing (4), and the top diameter of the positioning seat (51) is larger than the inner diameter of the bearing (4).

6. A bearing clearance detection device according to claim 1, wherein The testing mechanism (6) includes a rotating shaft (61) rotatably connected to the top of the testing table (2), a mounting base (62) is fixedly connected to the top of the rotating shaft (61), a dial indicator (63) is fixedly connected to one end of the mounting base (62), and a manual component (64) for driving the rotating shaft (61) to rotate is provided at the bottom end of the rotating shaft (61).

7. A bearing clearance detection device according to claim 6, wherein The manual component (64) includes a worm gear (641) fixedly connected to the bottom of the rotating shaft (61), and a worm (642) meshing with the worm gear (641) is rotatably connected to the bottom of the testing platform (2), and a handwheel (643) is fixedly connected to one end of the worm (642).

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