A wheel hub bearing positive clearance measuring device

Abstract

The utility model discloses a wheel hub bearing positive clearance measuring device, which relates to the field of wheel hub bearing measurement technology, and comprises a base, support legs are fixedly installed at the four corners of the top of the base, a top seat is fixedly installed on the top of the support legs, a clamping mechanism is fixedly installed on the front side of the top of the top seat, an adjustment mechanism is fixedly installed on the rear side of the top of the top seat, a support frame is fixedly installed on the top of the adjustment mechanism, and a telescopic cylinder is fixedly installed on the top of the support frame. The utility model adopts the above structure, and by setting the clamping mechanism, the device can conveniently place the bearing on the top of the turntable, start the first motor, drive the bidirectional screw to rotate, and make the slider slide back and forth in the slide groove, so as to flexibly adjust the position of the two sets of clamping frames, clamp the bearing through the guide roller, start the second motor, drive the guide roller to rotate, and then drive the bearing to rotate, so as to achieve 360-degree accurate detection. This design improves the detection performance of the device.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel hub bearing measurement, and particularly relates to a wheel hub bearing positive clearance measuring device. Background Art

[0002] The positive clearance measurement of wheel hub bearings is an accurate detection method for the internal clearance of automobile wheel hub bearings, which is designed to ensure the stability and safety of the bearings during operation. The positive clearance, that is, the clearance between the inner and outer rings of the bearing, is essential for the normal operation and life of the bearing. If the clearance is too large, it may cause unstable operation of the bearing, abnormal noise or vibration; while if the clearance is too small, it may increase bearing friction, cause overheating and premature wear, so it is usually necessary to measure the positive clearance of wheel hub bearings.

[0003] A Chinese patent with publication number "CN220120072U" discloses a wheel hub bearing positive clearance measuring device, which includes a base and a support column, wherein the support column is installed and connected to the upper rear side of the base. In the utility model, when the clamping assembly, the first cylinder and the second cylinder are used in cooperation, bearings of different sizes can be clamped for subsequent clearance measurement. The connecting sleeve is sleeved on the output rods of the first cylinder and the second cylinder, and further fixedly connected using a fixed steel pin, so that the cylinder output rod is fixedly connected in the connecting sleeve. When in use, the first cylinder and the second cylinder drive rods push forward. When the drive rod pushes forward, the U-shaped clamp is pushed forward for clamping until the U-shaped clamp is clamped on the outer wall of the bearing. When clamping, the inner end face of the U-shaped clamp is provided with an anti-slip rubber pad, so that it is more secure and not easy to slide when clamping, so that the outer ring of the bearing can be clamped, and it can be driven by the cylinder to clamp and fix bearings of different sizes.

[0004] During use, although the above-mentioned device can assist in clamping and fixing bearings of different sizes, during its use, the bearing is in a fixed state and cannot be rotated and adjusted. At the same time, its measuring table is not convenient to adjust. It is obviously not convenient to flexibly perform 360-degree detection on the outer surface of the bearing. It can be seen that there are certain defects and deficiencies in its bearing detection, and detection deviation is very easy to occur, so it needs to be improved. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a wheel hub bearing positive clearance measuring device to solve the problems raised in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A wheel hub bearing positive clearance measuring device comprises a base, support legs are fixedly installed at the four corners of the top of the base, a top seat is fixedly installed on the top of the support legs, a clamping mechanism is fixedly installed on the top front side of the top seat, an adjustment mechanism is fixedly installed on the top rear side of the top seat, a support frame is fixedly installed on the top of the adjustment mechanism, a telescopic cylinder is fixedly installed on the top of the support frame, and a measuring gauge is fixedly installed on the output end of the telescopic cylinder through the support frame;

[0008] The clamping mechanism includes a slide groove and a first motor, the slide groove is opened at the top front end of the top seat, the slide groove is internally rotatably connected with a bidirectional screw rod, the two ends of the bidirectional screw rod have opposite thread rotation directions, the two ends of the bidirectional screw rod are threadedly connected with sliders, the top of the slider is fixedly installed with a clamping assembly, the first motor is fixedly installed at the front end of one side of the top seat, the slide groove is opened at the top front end of the top seat, and a moving space is provided for the bidirectional screw rod and the slider, the first motor drives the bidirectional screw rod to rotate, because the two ends of the bidirectional screw rod have opposite thread rotation directions, when the screw rod rotates, the sliders at both ends will synchronously slide back and forth in the slide groove, this design enables the clamping mechanism to flexibly adjust the position between the two sets of clamping assemblies The spacing is adjusted to accommodate bearings of different sizes. The top of the clamping assembly is fixed on the slider. When the slider moves, the clamping assembly will move accordingly. A guide roller is provided on the inside of the clamping assembly, which can fit closely to the outer surface of the bearing, thereby realizing the clamping and positioning of the bearing. Once the bearing is firmly clamped, the guide roller will drive the bearing to rotate by starting the second motor, so that the bearing can be in a rotating state, which is convenient for comprehensive testing. The combination of the adjustment mechanism and the support frame is responsible for supporting and moving the measuring table. The telescopic cylinder is installed on the top of the support frame, and its output end is connected to the measuring table. The height and position of the measuring table can be flexibly adjusted through the telescopic action of the telescopic cylinder, so that it can accurately measure various parameters of the bearing.

[0009] As a preferred technical solution, the clamping assembly includes a bracket, the bracket is fixedly installed on the top of the slider, a clamping plate is fixedly installed on the inner side of the bracket, and a clamping frame is fixedly installed on the inner side of the clamping plate. By arranging the clamping plate and the clamping frame, the stability of the overall clamping and positioning of the device can be improved.

[0010] As an optimal technical solution, guide rollers are rotatably connected on both sides of the inner part of the clamping frame, a second motor is fixedly installed on one side of the top of the clamping frame with the guide roller, and a driving gear is fixedly installed on the output end of the second motor through the clamping frame, and a transmission gear is fixedly installed on the top of a guide roller, and the driving gear and the transmission gear are meshed and fixedly connected. By arranging the clamping frame to cooperate with the guide roller, the device can assist in driving the wheel hub bearing to rotate, and by starting the driving gear to drive the transmission gear to rotate, the guide roller can be driven to rotate, and then the wheel hub bearing can be rotated, which can improve the overall detection performance of the device.

[0011] As a preferred technical solution, the overall cross-sectional shape of the inner side of the clamping frame is set in a V-shape, and the outer edges and corners of the clamping frame are set in an arc shape. By setting up a V-shaped clamping frame, the device can stably clamp and position the wheel hub bearing. Setting the edges and corners of the clamping frame in an arc shape can improve the overall aesthetics and convenience of use of the device.

[0012] As a preferred technical solution, the top of the top seat is rotatably connected with a turntable, and the turntable is arranged in the middle between the inner sides of the clamping frame. By setting the turntable, the wheel hub bearing can be supported by the turntable during use, which can reduce the friction at the bottom of the bearing and facilitate flexible adjustment of the device.

[0013] As an optimal technical solution, the adjustment mechanism includes a guide rail, which is fixedly installed on the middle part of the top rear side of the top seat, and a third motor is fixedly installed on the back side of the guide rail, and a one-way screw is fixedly installed on the output end of the third motor through the guide rail, and a movable block is threadedly connected to the outer surface of the one-way screw, and the movable block is slidably connected to the inside of the guide rail, and the top of the movable block and the bottom of the support frame are fixedly connected. By setting the guide rail and the third motor, the device can be used during use by starting the third motor to drive the one-way screw to rotate, and the one-way screw can be rotated to assist in driving the movable block to move forward and backward, so that the front and rear displacement of the measuring table can be flexibly adjusted, and the overall detection performance and detection accuracy of the device can be improved.

[0014] As a preferred technical solution, the overall cross-sectional shape of the inner side of the guide rail and the inner side of the slide groove are both set to a convex shape, the overall cross-sectional shape of the slider and the movable block are also set to a convex shape, the inner walls of the guide rail and the slide groove and the outer walls of the movable block and the slider are fixedly connected with wear-resistant gaskets, and by setting the inside of the guide rail and the slide groove to be convex, the overall sliding stability of the slider and the movable block can be improved, and by setting the wear-resistant gasket, the overall friction resistance of the slider and the sliding block can be improved.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] First, by setting up the clamping mechanism, the device can conveniently place the bearing on the top of the turntable, start the first motor, drive the bidirectional screw to rotate, and make the slider slide back and forth in the slide slot, so as to flexibly adjust the position of the two sets of clamping frames, clamp the bearing through the guide roller, start the second motor, drive the guide roller to rotate, and then drive the bearing to rotate, so as to achieve 360-degree accurate detection. This design improves the detection performance of the device;

[0017] Second, by setting up an adjustment mechanism and cooperating with the telescopic cylinder, the device can flexibly adjust the detection height and front and rear displacement of the measuring table. The third motor is used to drive the one-way screw to rotate and the auxiliary movable block to move back and forth, thereby adjusting the position of the support frame and the measuring table. Combined with the design of the clamping component driving the bearing to rotate and the design of the telescopic cylinder pushing the measuring table up and down, the device can comprehensively detect the bearings and further improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the top view structure of the clamping assembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the clamping assembly of the utility model when viewed from above.

[0022] 1. Base; 2. Support legs; 3. Top seat; 4. Support frame; 5. Clamping mechanism; 51. Slide; 52. First motor; 53. Bidirectional screw; 54. Slider; 55. Clamping assembly; 551. Bracket; 552. Clamping plate; 553. Clamping frame; 554. Guide roller; 555. Second motor; 556. Driving gear; 557. Transmission gear; 6. Adjustment mechanism; 61. Guide rail; 62. Third motor; 63. One-way screw; 64. Movable block; 7. Telescopic cylinder; 8. Measuring meter; 9. Turntable. DETAILED DESCRIPTION

[0023] Example

[0024] refer to Figures 1 to 4 A wheel hub bearing positive clearance measuring device of this embodiment includes a base 1, support legs 2 are fixedly installed at the four corners of the top of the base 1, a top seat 3 is fixedly installed on the top of the support leg 2, a clamping mechanism 5 is fixedly installed on the top front side of the top seat 3, an adjustment mechanism 6 is fixedly installed on the top rear side of the top seat 3, a support frame 4 is fixedly installed on the top of the adjustment mechanism 6, a telescopic cylinder 7 is fixedly installed on the top of the support frame 4, and a measuring gauge 8 is fixedly installed on the output end of the telescopic cylinder 7 through the support frame 4;

[0025] The clamping mechanism 5 includes a slide groove 51 and a first motor 52. The slide groove 51 is opened at the top front end of the top seat 3. A bidirectional screw rod 53 is rotatably connected inside the slide groove 51. The threads at both ends of the bidirectional screw rod 53 rotate in opposite directions. Both ends of the bidirectional screw rod 53 are threadedly connected to sliders 54. A clamping assembly 55 is fixedly installed on the top of the slider 54. The first motor 52 is fixedly installed on the front end of one side of the top seat 3. The slide groove 51 is opened at the top front end of the top seat 3, providing space for the bidirectional screw rod 53 and the slider 54 to move. The first motor 52 drives the bidirectional screw rod 53 to rotate. Since the threads at both ends of the bidirectional screw rod 53 rotate in opposite directions, when the screw rod rotates, the sliders 54 at both ends will synchronously slide back and forth in the slide groove 51. This design enables the clamping mechanism 5 to flexibly adjust the two groups of clamping assemblies 55. The spacing between the two ends is adjusted to accommodate bearings of different sizes. The top of the clamping assembly 55 is fixed on the slider 54. When the slider 54 moves, the clamping assembly 55 will also move accordingly. A guide roller 554 is provided on the inner side of the clamping assembly 55, which can closely fit the outer surface of the bearing, thereby achieving the clamping and positioning of the bearing. Once the bearing is firmly clamped, by starting the second motor 555, the guide roller 554 will drive the bearing to rotate, so that the bearing can be in a rotating state, which is convenient for comprehensive testing. The combination of the adjustment mechanism 6 and the support frame 4 is responsible for supporting and moving the measuring meter 8. The telescopic cylinder 7 is installed on the top of the support frame 4, and its output end is connected to the measuring meter 8. Through the telescopic action of the telescopic cylinder 7, the height and position of the measuring meter 8 can be flexibly adjusted, so that it can accurately measure various parameters of the bearing.

[0026] refer to Figure 1-Figure 4 The clamping assembly 55 includes a bracket 551, which is fixedly installed on the top of the slider 54. A clamping plate 552 is fixedly installed on the inner side of the bracket 551, and a clamping frame 553 is fixedly installed on the inner side of the clamping plate 552. Guide rollers 554 are rotatably connected to both sides of the inner part of the clamping frame 553. A second motor 555 is fixedly installed on one side of the top of the clamping frame 553 with the guide roller 554. A driving gear 556 is fixedly installed on the output end of the second motor 555 through the clamping frame 553. A transmission gear 557 is fixedly installed on the top of a guide roller 554. The driving gear 556 and the transmission gear 557 are meshed and fixedly connected. By setting the clamping frame 553, during use, the device can start the second motor 555 to drive the driving gear 556 and the transmission gear 557 to mesh and transmit, so that the second motor 555 can be used to drive the guide roller 554 to rotate, which can assist in driving the hub bearing to rotate, thereby improving the overall detection performance of the device.

[0027] refer to Figure 1-Figure 4The overall cross-sectional shape of the inner side of the clamping frame 553 is set in a V-shape, and the outer edges and corners of the clamping frame 553 are set in an arc shape. By setting the V-shaped clamping frame 553, the device can stably clamp and position the wheel hub bearing. Setting the edges and corners of the clamping frame 553 to be arc-shaped can improve the overall aesthetics and convenience of the use of the device. The overall cross-sectional shape of the inner side of the clamping frame 553 adopts a V-shaped design. This design enables the clamping frame 553 to fit the shape of the wheel hub bearing more closely. Through the convergence effect of the V-shape, it is ensured that the wheel hub bearing can be stably clamped and positioned. This stable clamping method not only It ensures the accuracy and stability during the detection process, and can effectively prevent the bearing from shifting or falling off during the detection process, thereby improving the reliability and safety of the detection work. Secondly, the outer edges and corners of the clamping frame 553 are designed to be arc-shaped. This detail treatment not only makes the entire device more visually smooth and beautiful, but also improves the convenience of use. The arc-shaped design reduces the potential safety hazards caused by edges and corners, and avoids the risk of injury due to collision or scratch during operation. In addition, the arc-shaped appearance is more in line with the aesthetic trend of modern industrial design, making the entire device more attractive and competitive in appearance.

[0028] refer to Figure 1-Figure 2 The top of the top seat 3 is rotatably connected with a turntable 9, which is arranged in the middle between the inner sides of the clamping frame 553. By setting the turntable 9, the wheel hub bearing can be supported by the turntable 9 during use, which can reduce the friction at the bottom of the bearing and facilitate the flexible adjustment of the device. The setting of the turntable 9 enables the wheel hub bearing to be stably supported during the detection process, and the turntable 9 can rotate flexibly with the rotation of the bearing, thereby effectively reducing the friction at the bottom of the bearing, which not only prolongs the service life of the bearing, but also improves the stability and accuracy of the detection process. Secondly, the existence of the turntable 9 makes the device more flexible and convenient when adjusting the bearing position. By rotating the turntable 9, the orientation and position of the bearing can be easily adjusted, making the detection process smoother and more efficient, which greatly improves the work efficiency and reduces the labor intensity of the operator. In addition, the design of the turntable 9 also takes into account the convenience and comfort of use. Its smooth surface and suitable size enable the operator to easily place and remove the bearing, reducing the difficulty of operation. At the same time, the rotation of the turntable 9 also reduces the possible jamming or shaking of the bearing during the placement process, and improves the stability and safety of the operation.

[0029] refer to Figure 1-Figure 2The adjustment mechanism 6 includes a guide rail 61, which is fixedly installed at the middle of the top rear side of the top seat 3. A third motor 62 is fixedly installed on the back of the guide rail 61. The output end of the third motor 62 passes through the guide rail 61 and is fixedly installed with a one-way screw rod 63. The outer surface of the one-way screw rod 63 is threadedly connected with a movable block 64. The movable block 64 is slidably connected to the inside of the guide rail 61. The top of the movable block 64 is fixedly connected to the bottom of the support frame 4. The outer surface of the one-way screw rod 63 is threadedly connected with the movable block 64. This design allows the movable block 64 to move along the screw rod when the one-way screw rod 63 rotates. The movable block 64 is slidably connected to the inside of the guide rail 61 to ensure the smoothness and accuracy of the movement. At the same time, the top of the movable block 64 is fixedly connected to the bottom of the support frame 4. Therefore, the displacement of the movable block 64 will directly drive the support frame 4 and the measuring table 8 to move forward and backward. In this way, the operator only needs to control the start and stop of the third motor 62 to achieve flexible adjustment of the forward and backward displacement of the measuring table 8, which not only greatly improves the efficiency and convenience of detection, but also reduces the intervention of manual operation, thereby significantly improving the detection accuracy.

[0030] refer to Figure 1-Figure 4 The inner side of the guide rail 61 and the inner side of the slide groove 51 are both set to a convex shape, the overall cross-sectional shape of the slider 54 and the movable block 64 is also set to a convex shape, the inner wall of the guide rail 61 and the slide groove 51 and the outer wall of the movable block 64 and the slider 54 are fixedly connected with wear-resistant gaskets, and the inner side of the guide rail 61 and the inner side of the slide groove 51 are both set to a convex shape. This special design can ensure that the slider 54 and the movable block 64 are more stable when moving. Since the overall cross-sectional shape of the slider 54 and the movable block 64 is also a convex shape, they can be tightly embedded in the guide rail 61 and the slide groove 51. The groove 51 reduces shaking and deviation during the sliding process. In addition, in order to improve the durability and service life of the device, the inner walls of the guide rail 61 and the slide groove 51 and the outer walls of the movable block 64 and the slider 54 are fixedly connected with wear-resistant gaskets. The wear-resistant gaskets are usually made of materials with good wear resistance, which can effectively reduce the friction between the slider 54 and the movable block 64 and the guide rail 61 and the slide groove 51 during the sliding process, thereby improving the overall friction resistance. This not only helps to maintain the accuracy and stability of the device, but also reduces the heat and wear generated by friction, thereby extending the service life of the device.

[0031] Principle and advantages of use: By setting the clamping mechanism 5, the bearing to be tested can be placed on the top of the turntable 9 during use of the device. At this time, the first motor 52 is started to run, and the bidirectional screw rod 53 is driven to rotate by the first motor 52. The bidirectional screw rod 53 rotates, and the threads at both ends of the bidirectional screw rod 53 rotate in opposite directions, so that the slider 54 can be synchronously driven to slide back and forth inside the slide groove 51. By sliding the slider 54 back and forth inside the slide groove 51, the mutual displacement of the two groups of clamping frames 553 can be flexibly adjusted. At this time, the outer surface of the bearing can be clamped and positioned by the guide roller 554 on the inner side of the clamping frame 553. By starting the second motor 555 to run and cooperate with the driving gear 556 and the transmission gear 557 for transmission, a guide roller 554 can be driven to rotate, and the clamped bearing can be driven to rotate by the guide roller 554 fitting the outer surface of the bearing. It can be seen that the rotation of the bearing can be flexibly adjusted during detection, and it can be accurately detected at 360 degrees, which can improve the overall detection performance of the device.

[0032] By setting up the adjustment mechanism 6 in conjunction with the telescopic cylinder 7, the device can be used to start the telescopic cylinder 7 during use, so that the measuring scale 8 can be pushed up and down by the telescopic cylinder 7, and the detection adaptation height of the measuring scale 8 can be flexibly adjusted. At the same time, during this period, the third motor 62 is used to drive the one-way screw 63 to rotate. The rotation of the one-way screw 63 can assist in driving the reciprocating displacement of the movable block 64. The reciprocating displacement of the movable block 64 can be flexibly adjusted to the front and rear displacement of the support frame 4 on the top of the movable block 64, so that the device can flexibly adjust the front and rear displacement of the measuring scale 8 during auxiliary detection. The rotation design of the clamping component 55 for the bearing and the telescopic cylinder 7 pushing the up and down movement design can flexibly adjust the measuring scale 8 to perform comprehensive detection of the bearing, which can further improve the overall detection accuracy and performance of the device.

Claims

1. A wheel hub bearing positive clearance measuring device, comprising a base (1), characterized in that: Support legs (2) are fixedly installed at the four corners of the top of the base (1); a top seat (3) is fixedly installed on the top of the support legs (2); a clamping mechanism (5) is fixedly installed on the front side of the top of the top seat (3); an adjustment mechanism (6) is fixedly installed on the rear side of the top of the top seat (3); a support frame (4) is fixedly installed on the top of the adjustment mechanism (6); a telescopic cylinder (7) is fixedly installed on the top of the support frame (4); a measuring meter (8) is fixedly installed on the output end of the telescopic cylinder (7) through the support frame (4); The clamping mechanism (5) comprises a slide groove (51) and a first motor (52), wherein the slide groove (51) is opened at the top front end of the top seat (3), and a bidirectional screw rod (53) is rotatably connected inside the slide groove (51), and the two ends of the bidirectional screw rod (53) have threads with opposite rotation directions, and the two ends of the bidirectional screw rod (53) are both threadedly connected to a slider (54), and a clamping assembly (55) is fixedly installed on the top of the slider (54), and the first motor (52) is fixedly installed on the front end of one side of the top seat (3).

2. A wheel hub bearing positive clearance measuring device according to claim 1, characterized in that: The clamping assembly (55) comprises a bracket (551), wherein the bracket (551) is fixedly mounted on the top of the slider (54), a clamping plate (552) is fixedly mounted on the inner side of the bracket (551), and a clamping frame (553) is fixedly mounted on the inner side of the clamping plate (552).

3. A wheel hub bearing positive clearance measuring device according to claim 2, characterized in that: Both sides of the interior of the clamping frame (553) are rotatably connected with guide rollers (554); a second motor (555) is fixedly installed on one side of the top of the clamping frame (553) with the guide rollers (554); an output end of the second motor (555) passes through the clamping frame (553) and is fixedly installed with a driving gear (556); a transmission gear (557) is fixedly installed on the top of one guide roller (554); the driving gear (556) and the transmission gear (557) are meshed and fixedly connected.

4. A wheel hub bearing positive clearance measuring device according to claim 3, characterized in that: The overall cross-sectional shape of the inner side of the clamping frame (553) is V-shaped, and the outer edges and corners of the clamping frame (553) are all arc-shaped.

5. A wheel hub bearing positive clearance measuring device according to claim 4, characterized in that: The top of the top seat (3) is rotatably connected to a turntable (9), and the turntable (9) is arranged in the middle between the inner sides of the clamping frame (553).

6. A wheel hub bearing positive clearance measuring device according to claim 5, characterized in that: The adjustment mechanism (6) comprises a guide rail (61), wherein the guide rail (61) is fixedly mounted at the middle part of the top rear side of the top seat (3), a third motor (62) is fixedly mounted on the back side of the guide rail (61), an output end of the third motor (62) passes through the guide rail (61) and is fixedly mounted with a one-way screw rod (63), an outer surface of the one-way screw rod (63) is threadedly connected with a movable block (64), the movable block (64) is slidably connected to the inside of the guide rail (61), and the top of the movable block (64) is fixedly connected to the bottom of the support frame (4).

7. A wheel hub bearing positive clearance measuring device according to claim 6, characterized in that: The inner side of the guide rail (61) and the inner side of the slide groove (51) are both arranged in a convex shape, and the overall cross-sectional shapes of the slider (54) and the movable block (64) are also arranged in a convex shape. The inner walls of the guide rail (61) and the slide groove (51) and the outer walls of the movable block (64) and the slider (54) are all fixedly connected with wear-resistant gaskets.

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