Bearing detection device
By combining airbag expansion and magnetic suction plate positioning, the problem of bearing damage caused by rigid clamping is solved, achieving stable positioning and smooth rotation during bearing testing, and extending the service life of bearings and devices.
Patent Information
- Application Number
- CN202423114439.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing bearing testing devices use rigid clamping during positioning, which may damage the bearing and positioning fixture, affecting testing accuracy and service life.
An airbag is used to expand the inner ring of the bearing, and an arc-shaped magnetic suction plate is used to magnetically attract the outer ring of the bearing. The combination of airbag and magnetic attraction achieves soft clamping, avoiding damage to the bearing and positioning fixture.
It achieves stable positioning of the bearing and positioning fixture without damaging the bearing during the bearing inspection process, ensuring the smooth rotation of the bearing and extending the service life of the bearing and the device.
Smart Images

Figure CN223526016U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing field, more specifically, bearing detection device. BACKGROUND
[0002] Bearing is a kind of mechanical parts, main function is the support mechanical rotating body, reduce its in the rotation process friction coefficient, and guarantee rotation precision, generally speaking, bearing is composed of inner ring, outer ring, rolling body and retainer these parts, inner ring is usually installed on the shaft, with the shaft close cooperation, and it will rotate along with the shaft, outer ring is installed on bearing seat or the shell of machinery etc. Fixed component, keep relative static, rolling body (such as ball, roller etc.) is located in the raceway between inner ring and outer ring, it is the key element of realizing rolling friction, reduce the friction between inner ring and outer ring by rolling, the role of retainer is to uniformly separate rolling body, prevent them from colliding and rubbing, make rolling body can smoothly roll.
[0003] Chinese patent application number: CN202420597333.6 provides a kind of wheel hub bearing inner ring measuring device, the scheme is contracted by being provided with second electric telescopic rod, and first electric telescopic rod is stretched out, it drives measuring probe to enter bearing inner ring, then it is rotated by rotating handle, then second slide block drives positioning plate to move to outside, until measuring probe and bearing inner ring contact, it drives the diameter of bearing inner ring and the distance between infrared distance measuring device and distance measuring block is equivalent, then the distance between distance measuring block is measured by infrared distance measuring device, so that wheel hub bearing inner ring measuring device is convenient for quickly measuring the diameter of the inner circle of wheel hub bearing, it is convenient to use, but, when bearing is detected, the smoothness when bearing rotates also needs to be detected, and the measuring device mentioned in the above patent adopts hard clamping when positioning bearing, if bearing is jammed when detecting bearing, the whole bearing is rotated following rotating force, and the outer ring of bearing can be damaged by hard clamping mode, and clamping tool can be damaged, not conducive to later use.
[0004] Therefore, bearing detection device is proposed for the above problems. Utility model content
[0005] In order to overcome the deficiencies of prior art, the purpose of the utility model is to provide bearing detection device, the inner circle of bearing is expanded by air bag, so as to limit the position of bearing, and the outer ring of bearing is magnetically attracted by arc-shaped magnetic attraction plate, and then subsequent detection is carried out when bearing rotates, if bearing is jammed, bearing is not damaged by magnetic attraction and soft clamping, and the whole positioning tool is not excessively damaged.
[0006] The above technical purpose of the utility model is realized by the following technical scheme:
[0007] The bearing detection device comprises an adjusting support, a support assembly is installed in the middle of the adjusting support, a positioning assembly is installed at the top end of the support assembly, the adjusting support comprises a U-shaped support, a pair of symmetrical arc-shaped magnetic attraction plates are movably connected inside the U-shaped support, the positioning assembly comprises a protective shell, an air box is fixedly connected inside the protective shell, an air pump is fixedly connected at the top end of the air box and penetrates the top end of the protective shell, the air pump is fixedly connected with the protective shell, two groups of connecting pipes are fixedly connected in the middle of the air box, the number of connecting pipes in each group is several, each group of connecting pipes is arranged in a circular level, one end of the connecting pipe away from the air box penetrates the protective shell and is fixedly connected with a pipe sleeve, a communication pipe is fixedly connected in the middle of the pipe sleeve, the communication pipe communicates with the pipe sleeve, a gas bag is fixedly connected at the end of the pipe sleeve away from the connecting pipe, and the gas bag is matched with the arc-shaped magnetic attraction plate;
[0008] The U-shaped support is used as the main part of the adjusting support to provide basic support, the pair of symmetrical arc-shaped magnetic attraction plates movably connected inside are used for magnetic attraction bearing outer ring, the protective shell in the positioning assembly protects the internal structure, the air box is connected with the gas bag through the connecting pipe, the pipe sleeve and the communication pipe, and the air pump inflates the gas bag to expand the gas bag to the bearing inner ring, so that the bearing is limited in position and cooperates with the arc-shaped magnetic attraction plate to realize stable positioning.
[0009] Further, a lead screw is rotatably connected inside the U-shaped support, one end of the lead screw penetrates the right end of the U-shaped support and is fixedly connected with a knob.
[0010] The lead screw is rotatably connected inside the U-shaped support, and the knob is fixedly connected at one end of the lead screw after penetrating the right end of the U-shaped support, so as to conveniently rotate the lead screw manually by the operator to adjust the position of the related parts inside the device.
[0011] Further, a slide rod is installed at the rear end of the lead screw and inside the U-shaped support, and the slide rod is fixedly connected with the U-shaped support.
[0012] Through the cooperation between the lead screw and the slide rod, a stable sliding track is provided for the subsequent parts cooperating with the lead screw.
[0013] Further, a pair of symmetrical movable blocks are slidingly connected in the middle of the slide rod, and one end of the movable block away from the slide rod is sleeved with the lead screw through a threaded sleeve.
[0014] Further, a connecting block is fixedly connected at the top end of the movable block, and the connecting block is fixedly connected with the arc-shaped magnetic attraction plate.
[0015] Further, the support assembly comprises a connecting seat, the connecting seat is fixedly installed inside the U-shaped support and at the bottom end of the protective shell, and the connecting seat is fixedly connected with the protective shell.
[0016] Further, the inside of the connecting seat is fixedly connected with a motor, and the output end of the motor is fixedly connected with the protective shell through the top end of the connecting seat.
[0017] To sum up, the utility model has the following beneficial effects:
[0018] (1) The air bag of the scheme expands the inner ring of the bearing, thereby limiting the position of the bearing, and the outer ring of the bearing is magnetically attracted by the arc-shaped magnetic attraction plate, so that if the bearing is stuck during subsequent detection of the rotation of the bearing, the bearing will not be damaged by magnetic attraction and soft clamping, and the entire positioning tool will not be excessively damaged.
[0019] (2) The support assembly drives the positioning assembly to rotate, so that the inner ring of the bearing supported by the positioning assembly rotates, thereby facilitating subsequent observation of the smoothness of the rotation of the bearing. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is the overall structure schematic diagram in the embodiment;
[0021] Figure 2 is the overall split structure schematic diagram in the embodiment;
[0022] Figure 3 is the support assembly cut structure schematic diagram in the embodiment;
[0023] Figure 4 is the structure schematic diagram of the positioning assembly in the embodiment.
[0024] In the figure, 1 is an adjusting support, 2 is a support assembly, 3 is a positioning assembly, 101 is a U-shaped support, 102 is a lead screw, 103 is a sliding rod, 104 is a knob, 105 is a movable block, 106 is a connecting block, 107 is an arc-shaped magnetic attraction plate, 201 is a connecting seat, 202 is a motor, 301 is a protective shell, 302 is a gas box, 303 is a connecting pipe, 304 is a pipe sleeve, 305 is a communication pipe, 306 is an air bag, and 307 is a gas pump. DETAILED DESCRIPTION
[0025] The utility model will be further described in detail below in combination with the drawings.
[0026] Wherein, same parts are indicated by same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.
[0027] Reference Figures 1-4The bearing detection device is characterized in that the U-shaped support is used as the main part of the adjusting support 1, a pair of symmetrical arc-shaped magnetic attraction plates 107 that are movably connected in the U-shaped support are used for magnetically attracting the outer ring of the bearing, the protective shell 301 in the positioning assembly 3 protects the internal structure, the air box 302 is connected with the air bag 306 through the connecting pipe 303, the pipe sleeve 304 and the communication pipe 305, the air pump inflates the air bag 306, the air bag 306 expands the inner ring of the bearing, and the bearing is positioned and stabilized in cooperation with the arc-shaped magnetic attraction plate 107.
[0028] The U-shaped support is used as the main part of the adjusting support 1, a pair of symmetrical arc-shaped magnetic attraction plates 107 that are movably connected in the U-shaped support are used for magnetically attracting the outer ring of the bearing, the protective shell 301 in the positioning assembly 3 protects the internal structure, the air box 302 is connected with the air bag 306 through the connecting pipe 303, the pipe sleeve 304 and the communication pipe 305, the air pump inflates the air bag 306, the air bag 306 expands the inner ring of the bearing, and the bearing is positioned and stabilized in cooperation with the arc-shaped magnetic attraction plate 107.
[0029] The U-shaped support is used as the main part of the adjusting support 1, a pair of symmetrical arc-shaped magnetic attraction plates 107 that are movably connected in the U-shaped support are used for magnetically attracting the outer ring of the bearing, the protective shell 301 in the positioning assembly 3 protects the internal structure, the air box 302 is connected with the air bag 306 through the connecting pipe 303, the pipe sleeve 304 and the communication pipe 305, the air pump inflates the air bag 306, the air bag 306 expands the inner ring of the bearing, and the bearing is positioned and stabilized in cooperation with the arc-shaped magnetic attraction plate 107.
[0030] The U-shaped support is used as the main part of the adjusting support 1, a pair of symmetrical arc-shaped magnetic attraction plates 107 that are movably connected in the U-shaped support are used for magnetically attracting the outer ring of the bearing, the protective shell 301 in the positioning assembly 3 protects the internal structure, the air box 302 is connected with the air bag 306 through the connecting pipe 303, the pipe sleeve 304 and the communication pipe 305, the air pump inflates the air bag 306, the air bag 306 expands the inner ring of the bearing, and the bearing is positioned and stabilized in cooperation with the arc-shaped magnetic attraction plate 107.
[0031] The U-shaped support is used as the main part of the adjusting support 1, a pair of symmetrical arc-shaped magnetic attraction plates 107 that are movably connected in the U-shaped support are used for magnetically attracting the outer ring of the bearing, the protective shell 301 in the positioning assembly 3 protects the internal structure, the air box 302 is connected with the air bag 306 through the connecting pipe 303, the pipe sleeve 304 and the communication pipe 305, the air pump inflates the air bag 306, the air bag 306 expands the inner ring of the bearing, and the bearing is positioned and stabilized in cooperation with the arc-shaped magnetic attraction plate 107.
[0032] The U-shaped support is used as the main part of the adjusting support 1, a pair of symmetrical arc-shaped magnetic attraction plates 107 that are movably connected in the U-shaped support are used for magnetically attracting the outer ring of the bearing, the protective shell 301 in the positioning assembly 3 protects the internal structure, the air box 302 is connected with the air bag 306 through the connecting pipe 303, the pipe sleeve 304 and the communication pipe 305, the air pump inflates the air bag 306, the air bag 306 expands the inner ring of the bearing, and the bearing is positioned and stabilized in cooperation with the arc-shaped magnetic attraction plate 107.
[0033] The U-shaped support is used as the main part of the adjusting support 1, a pair of symmetrical arc-shaped magnetic attraction plates 107 that are movably connected in the U-shaped support are used for magnetically attracting the outer ring of the bearing, the protective shell 301 in the positioning assembly 3 protects the internal structure, the air box 302 is connected with the air bag 306 through the connecting pipe 303, the pipe sleeve 304 and the communication pipe 305, the air pump inflates the air bag 306, the air bag 306 expands the inner ring of the bearing, and the bearing is positioned and stabilized in cooperation with the arc-shaped magnetic attraction plate 107.
[0034] By making the middle part of the slide bar 103 slide connection with a pair of symmetrical movable block 105, the movable block 105 away from the end of the slide bar 103 through the sleeve and the screw rod 102 set, when the screw rod 102 rotates, the movable block 105 can slide on the slide bar 103 stably, and then drive the connected parts to adjust the position to adapt to different size bearings.
[0035] The top end of the movable block 105 is fixedly connected with the connecting block 106, and the connecting block 106 is fixedly connected with the arc-shaped magnetic plate 107.
[0036] By fixing the connecting block 106 on the top end of the movable block 105, the connecting block 106 is fixedly connected with the arc-shaped magnetic plate 107, so that the movement of the movable block 105 can be accurately transmitted to the arc-shaped magnetic plate 107, and the arc-shaped magnetic plate 107 moves to better adapt to bearings of different sizes.
[0037] The support assembly 2 comprises a connecting seat 201 fixedly installed in the inside of the U-shaped support 101 and located at the bottom end of the protective shell 301, and the connecting seat 201 is fixedly connected with the protective shell 301.
[0038] By fixing the connecting seat 201 in the inside of the U-shaped support and at the bottom end of the protective shell 301, and making the connecting seat 201 fixedly connected with the protective shell 301, the stable support for the protective shell 301 and the positioning assembly 3 is provided, and the structure stability of the whole device during operation is ensured.
[0039] The inside of the connecting seat 201 is fixedly connected with the motor 202, and the output end of the motor 202 penetrates through the top end of the connecting seat 201 and is fixedly connected with the protective shell 301.
[0040] By fixing the motor 202 in the inside of the connecting seat 201, and making the output end of the motor 202 penetrate through the top end of the connecting seat 201 and be fixedly connected with the protective shell 301, the motor 202 can drive the protective shell 301 and the positioning assembly 3 to rotate, so that the positioned bearing inner ring rotates, so as to facilitate the observation of the rotation smoothness of the bearing.
[0041] Specific implementation process: first, according to the size of the bearing to be detected, rotate the knob 104, the knob 104 drives the screw rod 102 to rotate in the U-shaped support 101, when the screw rod 102 rotates, the movable block 105 connected with the screw rod 102 through the screw sleeve and sliding on the slide rod 103 moves on the slide rod 103, the connecting block 106 at the top of the movable block 105 drives the arc magnetic plate 107 to move, adjust the distance between the two arc magnetic plates 107 to adapt to the size of the bearing outer ring, then, place the bearing at the positioning assembly 3, start the air pump, the air pump fills the air box 302 with air, the gas enters the air bag 306 through the connecting pipe 303, the pipe sleeve 304 and the communication pipe 305, the air bag 306 expands to expand the bearing inner ring, cooperate with the arc magnetic plate 107 to magnetically attract the bearing outer ring, realize the stable positioning of the bearing, then, start the motor 202, the motor 202 drives the protective shell 301 above the connecting seat 201 and the positioning assembly 3 to rotate, so that the bearing inner ring to be positioned rotates, at this time, the smoothness of the bearing rotation can be observed, if the bearing is jammed, since the magnetic attraction and soft clamping (air bag expansion) are adopted, the bearing will not be damaged, and the whole positioning tool will not be damaged excessively.
[0042] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A bearing inspection apparatus characterized by: Including the adjusting support (1), the middle part of the adjusting support (1) is provided with a support assembly (2), and the top end of the support assembly (2) is provided with a positioning assembly (3); The adjusting support (1) comprises a U-shaped support (101), and a pair of symmetrical arc-shaped magnetic attraction plates (107) are movably connected inside the U-shaped support (101); The positioning assembly (3) comprises a protective shell (301), and the inside of the protective shell (301) is fixedly connected with an air box (302); the top end of the air box (302) penetrates the top end of the protective shell (301) and is fixedly connected with an air pump (307); the air pump (307) is fixedly connected with the protective shell (301); the middle part of the air box (302) is fixedly connected with two groups of connecting pipes (303); each group of connecting pipes (303) comprises a plurality of connecting pipes (303); each group of connecting pipes (303) is arranged in a circular level; one end of the connecting pipe (303) away from the air box (302) penetrates the protective shell (301) and is fixedly connected with a pipe sleeve (304); the middle part of the pipe sleeve (304) is fixedly connected with a communication pipe (305); the communication pipe (305) communicates with the pipe sleeve (304); one end of the pipe sleeve (304) away from the connecting pipe (303) is fixedly connected with an air bag (306); the air bag (306) is matched with the arc-shaped magnetic attraction plate (107).
2. The bearing inspection apparatus of claim 1, wherein: The inside of the U-shaped support (101) is rotatably connected with a lead screw (102), one end of the lead screw (102) penetrates the right end of the U-shaped support (101) and is fixedly connected with a knob (104).
3. The bearing inspection apparatus of claim 2, wherein: The rear end of the lead screw (102) and the inside of the U-shaped support (101) are provided with a sliding rod (103), and the sliding rod (103) is fixedly connected with the U-shaped support (101).
4. The bearing inspection apparatus of claim 3, wherein: The middle part of the sliding rod (103) is slidably connected with a pair of symmetrical movable blocks (105), and one end of the movable block (105) away from the sliding rod (103) is sleeved with the lead screw (102) through a threaded sleeve.
5. The bearing inspection apparatus of claim 4, wherein: The top end of the movable block (105) is fixedly connected with a connecting block (106), and the connecting block (106) is fixedly connected with the arc-shaped magnetic attraction plate (107).
6. The bearing inspection apparatus of claim 1, wherein: The inside of the connecting seat (201) is fixedly connected with a motor (202), and the output end of the motor (202) penetrates the top end of the connecting seat (201) and is fixedly connected with the protective shell (301).
7. The bearing inspection apparatus of claim 6, wherein:
Citation Information
Patent Citations
Hub bearing inner ring measuring device
CN221898425U