Bearing clearance automatic detection device

Abstract

The invention relates to the technical field of bearing clearance detection, and particularly discloses a bearing clearance automatic detection device which comprises a first conveying mechanism and a second conveying mechanism, the third conveying mechanism comprises a third rack arranged above the second conveying mechanism and a third conveying belt installed on the third rack, the left end of the third conveying belt is located above the first conveying mechanism, and the right end of the third conveying belt is located above the second conveying mechanism. The multiple sets of supporting mechanisms are evenly distributed on the third conveying belt in the rotating direction of the third conveying belt. Each supporting mechanism comprises a sliding block, a first elastic piece enabling the sliding block to reset on the third conveying belt and a connecting assembly used for being connected with a bearing inner ring. The radial clearance detection mechanism comprises a pushing table fixedly installed on the second conveying mechanism and a first distance measuring assembly arranged on the connecting assembly, a first wedge-shaped face is arranged at the left end of the pushing table, and after the bearing outer ring rolls to the straight face along the inclined face, the first distance measuring assembly measures the shortest distance from the straight face to the bearing inner ring; the beneficial effect of the invention is that the detection efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing clearance detection, and particularly relates to a bearing clearance automatic detection device. BACKGROUND

[0002] Bearing clearance detection refers to the process of accurately measuring the small activity gap between the rolling elements (balls or rollers) inside the bearing and the raceways of the inner and outer rings. This gap is called bearing clearance. Because clearance is a core parameter of bearing design and operation, it directly affects its performance, service life and reliability. Excessive clearance can cause excessive relative movement of internal components under load, leading to increased vibration, noise, decreased rotational accuracy, and even accelerated wear and fatigue failure. Too small or even zero clearance (negative clearance) will cause a sharp increase in internal friction, resulting in high temperature, difficulty in lubrication, and also leading to severe wear, seizure, or damage due to thermal expansion. Therefore, whether it is quality control before new bearing leaves the factory, or equipment assembly and operation and maintenance stage, strict clearance detection must be carried out to ensure that the bearing is within the ideal clearance range required by the design, so as to ensure that it can smoothly, quietly and efficiently carry the load, transmit motion and achieve the expected service life, preventing equipment failure and unexpected downtime caused by improper clearance.

[0003] Chinese patent application file with publication number CN119223232B discloses a bearing clearance detection device, which includes a machine table, a workbench and a feeding mechanism matched with the workbench on the upper end of the machine table. The feeding mechanism includes a driving motor, a pair of matched pulleys and a conveying belt. The workbench is sequentially provided with a first detection station, a first NG station, a second detection station, a second NG station, a third detection station and a third NG station. Along one side of the workbench, there are sequentially provided flexibility detection mechanisms, first kicking mechanisms, axial clearance detection mechanisms, second kicking mechanisms, radial clearance detection mechanisms and third kicking mechanisms corresponding to the respective stations in order. The flexibility detection mechanisms are used to detect the rotational flexibility of the bearing. The first kicking mechanisms are used to kick the bearings that fail to pass the flexibility detection. The axial clearance detection mechanisms are used to detect the axial clearance of the bearing. The second kicking mechanisms are used to kick the bearings that fail to pass the axial clearance detection. The radial clearance detection mechanisms are used to detect the radial clearance of the bearing. The third kicking mechanisms are used to kick the bearings that fail to pass the radial clearance detection.

[0004] In the above-mentioned technology, when detecting the flexibility, axial clearance and radial clearance of the bearing, the bearing needs to be placed on the corresponding detection station for detection. In addition, the bearing needs a corresponding detection time during the detection process. At this time, the entire detection device needs to wait for the detection of the bearing on the station to be completed before starting feeding or discharging, thus requiring waiting time and affecting detection efficiency. SUMMARY

[0005] The application provides a bearing clearance automatic detection device, and aims to solve the problem that in the prior art, when bearings stop at corresponding detection stations for detection, the whole detection device needs to wait until the detection of the bearings on the stations is completed before starting feeding or discharging, thus needing to wait for a period of time and affecting the detection efficiency.

[0006] The application provides a bearing clearance automatic detection device, and aims to solve the problem that in the prior art, when bearings stop at corresponding detection stations for detection, the whole detection device needs to wait until the detection of the bearings on the stations is completed before starting feeding or discharging, thus needing to wait for a period of time and affecting the detection efficiency. The application provides a bearing clearance automatic detection device, and aims to solve the problem that in the prior art, when bearings stop at corresponding detection stations for detection, the whole detection device needs to wait until the detection of the bearings on the stations is completed before starting feeding or discharging, thus needing to wait for a period of time and affecting the detection efficiency. The application provides a bearing clearance automatic detection device, and aims to solve the problem that in the prior art, when bearings stop at corresponding detection stations for detection, the whole detection device needs to wait until the detection of the bearings on the stations is completed before starting feeding or discharging, thus needing to wait for a period of time and affecting the detection efficiency. The application provides a bearing clearance automatic detection device, and aims to solve the problem that in the prior art, when bearings stop at corresponding detection stations for detection, the whole detection device needs to wait until the detection of the bearings on the stations is completed before starting feeding or discharging, thus needing to wait for a period of time and affecting the detection efficiency.

[0007] The application provides a bearing clearance automatic detection device, and aims to solve the problem that in the prior art, when bearings stop at corresponding detection stations for detection, the whole detection device needs to wait until the detection of the bearings on the stations is completed before starting feeding or discharging, thus needing to wait for a period of time and affecting the detection efficiency.

[0008] The application provides a bearing clearance automatic detection device, and aims to solve the problem that in the prior art, when bearings stop at corresponding detection stations for detection, the whole detection device needs to wait until the detection of the bearings on the stations is completed before starting feeding or discharging, thus needing to wait for a period of time and affecting the detection efficiency.

[0009] The application provides a bearing clearance automatic detection device, and aims to solve the problem that in the prior art, when bearings stop at corresponding detection stations for detection, the whole detection device needs to wait until the detection of the bearings on the stations is completed before starting feeding or discharging, thus needing to wait for a period of time and affecting the detection efficiency. Preferably, the driving member one comprises a motor one arranged on the sliding block, a plurality of lead screws two are rotatably arranged on the sliding block, gears one are arranged on the ends of the lead screws two close to each other, a gear two is arranged on the output end of the motor one and engages with the gears one, the support rod is sleeved on the lead screws two, and the support rod and the lead screws two are in threaded connection.

[0010] Preferably, the distance measuring assembly one comprises a distance measuring sensor one fixedly arranged on the support rod, and the support rod on which the distance measuring sensor one is arranged is tightly attached to the position on the bearing inner ring closest to the straight surface.

[0011] Preferably, the detection device further comprises an axial clearance detection mechanism, the axial clearance detection mechanism comprises a stop rod arranged in front of the pushing table, a lifting assembly for driving the sliding block to lift on the conveying belt three, and a distance measuring assembly two for detecting the lifting height of the bearing inner ring, the stop rod is in abutment with the upper end surface of the bearing outer ring, and the distance measuring assembly two is arranged on the conveying belt three; when the distance measuring assembly one is measured, the lifting assembly drives the sliding block to lift, and at this time, the distance measuring assembly two measures the distance between the conveying belt three and the sliding block.

[0012] The effect is that the axial clearance detection mechanism can detect the axial clearance of the bearing during the conveying of the bearing on the conveying belt two, and thus the radial clearance and the axial clearance of the bearing are detected in one conveying process, so that the detection efficiency is improved.

[0013] Preferably, a plurality of rollers are rotatably arranged on the lower end surface of the stop rod, the axes of the rollers are arranged along the front-rear direction, and the plurality of rollers are uniformly distributed on the stop rod along the front-rear direction.

[0014] The effect is that the rollers arranged on the lower end surface of the stop rod can convert the sliding friction between the bearing outer ring and the stop rod into rolling friction, so that the frictional damage to the upper end surface of the bearing outer ring is reduced.

[0015] Preferably, the lifting assembly comprises an elastic telescopic rod slidably arranged on the conveying belt three along the up-down direction, a lifting plate fixedly arranged on the rack three, and an elastic member two for resetting the sliding block downward, the lower end of the elastic telescopic rod is fixedly connected with the sliding block, the top end of the elastic telescopic rod is fixedly arranged with a boss, the left end of the lifting plate is provided with a wedge surface two, when the distance measuring assembly one is measured, the boss moves along the wedge surface two, and thus the sliding block moves upward.

[0016] Preferably, the distance measuring assembly two comprises a distance measuring sensor two fixedly arranged on the conveying belt three, and the distance measuring sensor two is used for measuring the distance between the conveying belt three and the sliding block.

[0017] Preferably, the first conveying mechanism is fixedly provided with an L-shaped baffle extending in the front-rear direction, and during feeding, the bearing is located at the right side of the baffle; after detection, when a substandard bearing is detected, the connecting assembly drives the bearing to move above the first conveying mechanism; when the connecting assembly moves from the upper side of the conveying belt three to the lower side, the connecting assembly is disconnected from the inner ring of the bearing, so that the bearing slides to the left side of the baffle.

[0018] Preferably, the stop rod is slidingly installed on the push bench in the vertical direction, and the push bench is provided with a locking assembly for locking the stop rod and the push bench; the third rack is slidingly fitted on the second conveying mechanism in the front-rear direction, and the second conveying mechanism is provided with a second driving piece for driving the third rack to move.

[0019] The effect is that: by setting the stop rod to be sliding, the thickness of the detected bearing can be changed, and by setting the second driving piece, the position of the conveying belt three above the conveying belt two can be adjusted, so that bearings of different diameters can be detected.

[0020] The beneficial effects of the present application are: 1. By setting the first conveying mechanism, the second conveying mechanism and the third conveying mechanism, and setting a plurality of supporting mechanisms on the third conveying mechanism, and connecting the feeding section of the first conveying mechanism with the feeding section of the second conveying mechanism, automatic feeding can be realized, then the radial clearance detection mechanism and the axial clearance detection mechanism are arranged on the second conveying mechanism and the third conveying mechanism, so that during the conveying of the bearing by the second conveying mechanism, the radial clearance and the axial clearance of the bearing are detected by the radial clearance detection mechanism and the axial clearance detection mechanism, and during the detection process, the bearing does not need to be stopped and detected in situ, and the detection of the axial clearance detection mechanism can be completed during one conveying process, so that the detection efficiency is higher and the structure is simple. 2. By setting the baffle on the conveying belt one, when the bearing detection is completed, the proximity and distance of the supporting rods are controlled to screen the qualified bearings and the unqualified bearings, the supporting rods in the unqualified bearings are always in abutment with the inner ring of the bearing, so that the supporting rods drive the unqualified bearings to move above the conveying belt three, then after the unqualified bearings are sent to the left side of the baffle on the conveying belt one, the supporting rods are controlled to be close to each other, so that the unqualified bearings slide down to the left side of the baffle under the action of gravity, and then the qualified bearings and the unqualified bearings are discharged from different positions, so that the qualified bearings and the unqualified bearings are distinguished. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the whole application.

[0022] Figure 2 It is a structural schematic diagram of the supporting mechanism.

[0023] Figure 3 is a sectional view of the slider of the present application.

[0024] Figure 4 is a plan view of the support mechanism of the present application.

[0025] Figure 5 is a sectional view of the second conveying mechanism of the present application.

[0026] Figure 6 is a structural schematic view of the stop rod of the present application.

[0027] Reference Signs: 1, first conveying mechanism; 11, frame one; 12, conveying belt one; 13, baffle; 2, second conveying mechanism; 21, frame two; 22, conveying belt two; 23, mounting frame; 24, pushing table; 25, stop rod; 26, sliding groove three; 27, roller; 28, locking bolt; 3, third conveying mechanism; 31, frame three; 32, conveying belt three; 33, support shaft; 34, lead screw one; 36, sleeve; 37, lifting plate; 38, protruding block one; 4, support mechanism; 41, slider; 42, elastic member one; 43, connecting block; 44, sliding groove one; 45, support rod; 46, sliding groove two; 47, driving member one; 471, lead screw two; 472, motor one; 473, gear one; 474, gear two; 48, elastic telescopic rod; 49, boss; 410, elastic member two; 411, protruding block two; 5, bearing; 6, distance measuring sensor one; 7, distance measuring sensor two. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0029] As Figure 1As shown, the bearing 5 play automatic detection device of the embodiment of the application comprises a first conveying mechanism 1, a second conveying mechanism 2, a third conveying mechanism 3, a plurality of sets of supporting mechanisms 4, a radial play detection mechanism and an axial play detection mechanism, the blanking section of the first conveying mechanism 1 is connected with the feeding section of the second conveying mechanism 2, the first conveying mechanism 1 is used for conveying the bearing 5 to be detected to the front side of the feeding section of the second conveying mechanism 2, the plurality of sets of supporting mechanisms 4 are all arranged on the third conveying mechanism 3, the third conveying mechanism 3 is used for driving the supporting mechanisms 4 to pass above the first conveying mechanism 1 and the second conveying mechanism 2, when the supporting mechanisms 4 pass through the blanking section of the first conveying mechanism 1, the supporting mechanisms 4 drive the bearing 5 to be detected to move to the right on the second conveying mechanism 2, when the supporting mechanisms 4 and the bearing 5 move on the second conveying mechanism 2, the radial play detection mechanism first detects the radial play of the bearing 5, and then the axial play detection mechanism detects the axial play of the bearing 5, after the detection is completed, the qualified bearing 5 is conveyed to the right under the conveying of the second conveying mechanism 2 and enters the production process of the next stage.

[0030] As shown in the Figure 1 , the first conveying mechanism 1 comprises a rack one 11, a conveying belt one 12 and a baffle 13, the rack one 11 is placed on the ground, the conveying belt one 12 is arranged on the rack one 11, the baffle 13 is fixedly installed on the rack one 11, and the baffle 13 is located above the conveying belt one 12, the baffle 13 is composed of a guide section extending in the front-rear direction and an intercepting section extending in the left-right direction, the intercepting section is fixedly installed at the most front end of the guide section to form a "L" shape, a feeding port is formed on the rack one 11 to enable the bearing 5 to enter the second conveying mechanism 2 from the conveying belt one 12, before the bearing 5 is detected, the conveying belt one 12 first drives the bearing 5 to move along the guide section of the baffle 13 to the rear side of the intercepting section of the baffle 13, after the supporting mechanisms 4 move to the inner ring of the bearing 5, the bearing 5 is driven to enter the second conveying mechanism 2 from the feeding port along with the continuous movement of the supporting mechanisms 4.

[0031] As shown in the Figure 1 and Figure 5 , the second conveying mechanism 2 comprises a rack two 21, a conveying belt two 22 and a mounting bracket 23, the rack two 21 is placed on the ground, the conveying belt two 22 is arranged on the rack two 21, the mounting bracket 23 is fixedly installed on the rack two 21, and the third conveying mechanism 3 is arranged on the rack two 21.

[0032] As shown in the Figure 1 and Figure 5As shown, the third conveying mechanism 3 includes a frame 31, a conveyor belt 32, and a drive component 2. The frame 31 is slidably mounted on the mounting frame 23 in the front-to-back direction. The conveyor belt 32 is mounted on the frame 31. The drive component 2 is used to drive the frame 31 to move in the front-to-back direction on the mounting frame 23. The drive component 2 includes two support shafts 33, a lead screw 34 rotatably mounted on the mounting frame 23, and a handle connected to the front end of the lead screw. The two support shafts 33 and the lead screw 34 are both inserted through the frame 31 in the front-to-back direction, and both ends of the support shafts 33 are fixedly mounted on the mounting frame 23. The lead screw 34 is threadedly connected to the frame 31, and both ends of the lead screw 34 are rotatably mounted on the mounting frame 23. When inspecting bearings 5 ​​of different sizes, it is necessary to adjust the position of the conveyor belt 32 on the conveyor belt 22. By rotating the handle, the lead screw 34 is rotated, thereby causing the frame 31 to move in the front-to-back direction on the mounting frame 23.

[0033] like Figures 1-5 As shown, multiple sets of support mechanisms 4 are evenly distributed on conveyor belt 32 along the rotation direction of conveyor belt 32. The support mechanism 4 includes a slider 41, an elastic element 42, and a connecting assembly. A connecting block 43 is installed on conveyor belt 32. The upper end of slider 41 is provided with a groove 44. The lower end of connecting block 43 is slidably installed in the groove 44 in the front-back direction. The elastic element 42 is a compression spring. The two ends of the compression spring are fixedly connected to slider 41 and connecting block 43 respectively. When slider 41 moves on conveyor belt 32, it will compress compression spring 1, thereby storing force. The connecting assembly is set on slider 41. When slider 41 passes over bearing 5 on conveyor belt 12, the connecting assembly is used to connect the inner ring of bearing 5 and slider 41 together, so that when slider 41 moves above conveyor belt 22, the connecting assembly drives bearing 5 from conveyor belt 12 to conveyor belt 22.

[0034] like Figures 2-5 As shown, the connecting assembly includes four support rods 45 and a drive component 47. Four grooves 46 are formed on the lower end face of the slider 41, arranged in a circular array around the slider 41 along its vertical centerline. The upper ends of the four support rods 45 are slidably installed within the grooves 46 along their length. The drive component 47 drives the support rods 45 to move synchronously closer or further away. Initially, the support rods 45 are close to each other. When the conveyor belt 32 moves the slider 41 from top to bottom above the conveyor belt 12, the support rods 45 insert into the inner ring of the bearing 5. As the conveyor belt 32 continues to move the slider 41, the support rods 45 move the bearing 5 to the right onto the transmission belt 22. When the bearing 5 moves onto the transmission belt 22, the drive component 47 drives the four support rods 45 to move further away from each other until they are in close contact with the inner ring of the bearing 5.

[0035] likeFigures 1-5 As shown, the drive component 47 includes a motor 472, which is fixedly mounted on the slider 41. Four lead screws 471 are rotatably mounted in the four slide grooves 46. The ends of the lead screws 471 that are close to each other are coaxial and fixedly mounted with gears 473. A gear 474 meshing with gear 473 is mounted on the output end of the motor 472. Support rods 45 are respectively sleeved on the lead screws 471, and the support rods 45 and the lead screws 471 are threadedly connected. When the bearing 5 moves... After reaching the second conveyor belt 22, the first motor 472 starts and drives the second gear 474 to rotate forward. The rotation of the second gear 474 drives the first gear 473 on the four lead screws 471 to rotate. When the first gear 473 rotates, it drives the four lead screws 471 to rotate forward. Since the top of the support rods 45 are all slidably installed in the second groove 46, when the lead screws 471 rotate forward, the four support rods 45 move away from each other until they are pressed against the inner ring of the bearing 5. At this time, the inner ring of the bearing 5 is locked together with the support rods 45.

[0036] like Figures 2-5 As shown, the radial clearance detection mechanism includes a pusher platform 24 and a ranging component 1. The pusher platform 24 is fixedly mounted on the mounting frame 23. A wedge-shaped surface 1 is provided at the left end of the pusher platform 24. The ranging component 1 is mounted on the support rod 45 and includes a ranging sensor 6 fixedly mounted on the support rod 45. The support rod 45 with the ranging sensor 6 is in close contact with the inner ring of the bearing 5 at the position closest to the pusher platform 24. When the bearing 5 is driven onto the conveyor belt 22 by the support rod 45, the conveyor belt 22 and the support rod 45 together drive the bearing 5 to move to the right. After the support rod 45 is pressed against the inner ring of the bearing 5, as the conveyor belt 22 rotates, the outer circumferential wall of the bearing 5 first contacts the wedge-shaped surface 1 of the pusher platform 24. As the bearing 5 continues to move to the right, the bearing 5 gradually moves forward under the push of the wedge-shaped surface 1 of the pusher platform 24. At the same time, the inner ring of the bearing 5 pushes the support rod 45 forward. The movement causes the slider 41 to move forward, thereby storing force in the compression spring. As the bearing 5 moves to the right along the push platform 24, the compression spring applies a backward thrust to the bearing 5 through the slider 41 and the support rod 45, thereby increasing the friction between the outer ring of the bearing 5 and the push platform 24. As the bearing 5 moves to the right along the push platform 24, the outer ring of the bearing 5 rolls to the right along the push platform 24, causing the outer ring of the bearing 5 to rotate relative to the inner ring. During the rotation of the outer ring of the bearing 5, the balls or rollers between the outer ring and the inner ring of the bearing 5 also revolve around the inner ring of the bearing 5. When the axis of rotation of the balls or rollers coincides with the distance sensor 6 on the vertical plane in the front-back direction, the distance sensor 6 measures the distance a between the inner ring of the bearing 5 and the push platform 24. Therefore, the minimum radial clearance of the bearing 5 is equal to the radius of the outer ring of the bearing 5 minus the distance a.

[0037] like Figures 1-6As shown, the axial clearance detection mechanism includes a stop rod 25, a lifting assembly, and a second ranging assembly. The push platform 24 has a groove 26 on its front face. The stop rod 25 is slidably installed in the groove 26 in the vertical direction. A locking assembly is provided on the push platform 24 to lock the stop rod 25 to the push platform 24. When testing bearings 5 ​​of different thicknesses, the locking assembly first disconnects the stop rod 25 from the push platform 24. After adjusting the height of the stop rod 25, the locking assembly locks the stop rod 25 to the push platform 24. Multiple rollers 27 are rotatably mounted on the lower end face of the stop rod 25. The axes of the rollers 27 are arranged in the front-back direction, and the multiple rollers 27 are evenly distributed on the stop rod 25 in the front-back direction. When the bearing 5 moves to the straight surface of the push platform 24, the bearing 5... The upper end face of the ring abuts against the roller 27 on the lower end face of the stop bar 25. The roller 27 is used to convert the sliding friction between the outer ring of the bearing 5 and the stop bar 25 into rolling friction, thereby reducing the frictional damage to the upper end face of the outer ring of the bearing 5. Multiple sleeves 36 are threaded through and fixedly installed on the conveyor belt 32. The connecting block 43 is slidably installed in the sleeve 36 in the vertical direction. The lifting component is used to drive the connecting block 43 to move in the vertical direction in the sleeve 36. The distance measuring component 2 is used to measure the distance between the conveyor belt 32 and the slider 41. When the upper end face of the outer ring of the bearing 5 abuts against the roller 27 on the lower end face of the stop bar 25, the lifting component drives the connecting block 43 to rise in the sleeve 36. At this time, the distance measuring component 2 measures the distance between the conveyor belt 32 and the slider 41.

[0038] like Figures 5-6 As shown, the locking assembly includes a locking bolt 28 rotatably mounted on the stop bar 25. When adjusting the height of the stop bar 25, first rotate the locking bolt 28 clockwise to disengage the locking bolt 28 from the push plate 24. After adjusting the height of the stop bar, rotate the locking bolt 28 counterclockwise to make the rear end of the locking bolt 28 abut against the push plate 24.

[0039] like Figures 1-5As shown, the lifting assembly includes an elastic telescopic rod 48, a lifting plate 37, and an elastic element 410. The lower end of the elastic telescopic rod 48 is fixedly installed on the upper end face of the connecting block 43, and a boss 49 is fixedly installed on the upper end of the elastic telescopic rod 48. The lifting plate 37 is fixedly installed on the frame 31, and a wedge-shaped surface 2 is provided on the left end of the frame 31. The elastic element 410 is a compression spring 2, and the upper and lower ends of the compression spring 2 are fixedly connected to the conveyor belt 32 and the connecting block 43, respectively. After the radial clearance of the bearing 5 is detected, as the conveyor belt 32 rotates, the boss 49 at the upper end of the elastic telescopic rod 48 contacts the wedge-shaped surface 2 at the left end of the lifting plate 37 and gradually moves along the wedge-shaped surface 2 towards the upper end of the elastic telescopic rod 48. As the platform moves upward, the second spring is gradually compressed and stores energy. When the boss 49 moves upward, it drives the elastic telescopic rod 48 to move upward, which in turn drives the connecting block 43 and the slider 41 to move upward. Since the support rod 45 at the lower end of the slider 41 is pressed against the inner ring of the bearing 5, and the outer ring of the bearing 5 is limited by the stop rod 25 and cannot move upward, the slider 41 drives the inner ring of the bearing 5 to move upward during the upward movement. When the inner ring of the bearing 5 rises to the limit position, the elastic telescopic rod 48 is gradually stretched and lengthened as the boss 49 continues to rise. When the boss 49 disengages from the lifting plate 37, the second spring is released and pushes the connecting block 43 to move downward to complete the reset.

[0040] like Figures 1-5 As shown, the second ranging component includes a second ranging sensor 7, a first protrusion 38 on the sleeve 36, and a second protrusion 411 on the connecting block 43. In the initial state, the lower end face of the second protrusion 411 abuts against the upper end face of the first protrusion 38. The second ranging sensor 7 is located on the upper end face of the first protrusion 38. When the slider 41 moves upward, it drives the inner ring of the bearing 5 to move upward to the limit position. At this time, the distance between the lower end face of the second protrusion 411 and the upper end face of the first protrusion 38 measured by the second ranging sensor 7 is the value of the axial clearance of the bearing 5.

[0041] The specific working principle of the automatic bearing clearance detection device of the present invention is as follows: During the inspection of bearing 5, conveyor belt 12 first moves bearing 5 along the guide section of baffle 13 to the rear side of the interception section of baffle 13. When conveyor belt 32 moves slider 41 from top to bottom above conveyor belt 12, support rod 45 inserts into the inner ring of bearing 5. As conveyor belt 32 continues to move slider 41, support rod 45 moves bearing 5 to the right onto transmission belt 2. When bearing 5 moves onto transmission belt 22, motor 1 472 starts and drives gear 2 474 to rotate forward. Gear 2 474 rotates, driving gear 1 473 on four lead screws 2 471 to rotate. When gear 1 473 rotates, it drives gear 473 on four lead screws 2 471 to rotate. 71. As the top ends of the support rods 45 are slidably mounted within the slide groove 46, when the screw 471 rotates forward, the four support rods 45 move away from each other until they are pressed against the inner ring of the bearing 5. At this point, the inner ring of the bearing 5 is locked together with the support rods 45. As the conveyor belt 22 rotates, the outer circumferential wall of the bearing 5 first contacts the wedge-shaped surface of the pusher 24. As the bearing 5 continues to move to the right, it gradually moves forward under the push of the wedge-shaped surface of the pusher 24. Simultaneously, the inner ring of the bearing 5 pushes the support rods 45 forward and causes the slider 41 to move forward. During the process of the bearing 5 moving to the right along the pusher 24, the outer ring of the bearing 5 moves along the pusher 24 towards... The bearing 5 rolls to the right, causing the outer ring of bearing 5 to rotate relative to the inner ring of bearing 5. During the rotation of the outer ring of bearing 5, the balls or rollers between the outer ring and the inner ring of bearing 5 revolve around the inner ring of bearing 5. When the axis of rotation of the balls or rollers coincides with the vertical plane of the distance measuring sensor 6 in the front-back direction, the distance measuring sensor 6 measures the distance 'a' between the inner ring of bearing 5 and the straight surface of the push platform 24. Therefore, the minimum radial clearance of bearing 5 is equal to the radius of the outer ring of bearing 5 minus the distance 'a'. After the radial clearance of bearing 5 is measured, as the conveyor belt 22 continues to rotate, the boss at the upper end of the elastic telescopic rod 48... After the boss 49 contacts the wedge-shaped surface 2 at the left end of the lifting plate 37, it gradually moves upward along the wedge-shaped surface 2. When the boss 49 moves upward, it drives the elastic telescopic rod 48 to move upward, which in turn drives the connecting block 43 and the slider 41 to move upward. Since the support rod 45 at the lower end of the slider 41 is pressed against the inner ring of the bearing 5, and the outer ring of the bearing 5 is limited by the stop rod 25 and cannot move upward, the slider 41 drives the inner ring of the bearing 5 to move upward during the upward movement. When the inner ring of the bearing 5 rises to the limit position, the distance between the lower end face of the second boss 411 and the upper end face of the first boss 38 measured by the second distance sensor 7 is the value of the axial clearance of the bearing 5.

[0042] After the axial clearance of bearing 5 is tested, if the radial or axial clearance of bearing 5 is unqualified, the support rod 45 will always be pressed against the inner ring of bearing 5. When the slider 41 moves from the lower side of conveyor belt 32 to the upper side of conveyor belt 32, the support rod 45 will drive the unqualified bearing 5 to move synchronously to the upper side of conveyor belt 32. This continues until the support rod 45 drives the unqualified bearing 5 to the leftmost end of conveyor belt 32. Then, motor 1 472 drives gear 2 474 to reverse, causing the four support rods 45 to move closer together. Therefore, the support rods 45 gradually... During the movement to the lower side of conveyor belt 32, since the support rod 45 is no longer pressed against the inner ring of the bearing 5, after the end of the support rod 45 away from conveyor belt 32 is lower than the end of the support rod 45 near conveyor belt 32, the defective bearing 5 slides diagonally to the lower left along the support rod 45. Since the left end of the support rod 45 is located on the left side of the guide section of the baffle 13 at this time, the defective bearing 5 will fall on the left side of the baffle 13 on conveyor belt 12. As conveyor belt 12 continues to rotate, the defective bearing 5 is sent from the front end of conveyor belt 12 into the defective area.

[0043] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic bearing clearance detection device, comprising: A first conveying mechanism and a second conveying mechanism, wherein the unloading section of the first conveying mechanism is connected to the loading section of the second conveying mechanism, characterized in that it further includes: The third conveying mechanism includes a frame three disposed above the second conveying mechanism and a conveyor belt three mounted on the frame three, with the left end of the conveyor belt three located above the first conveying mechanism; Multiple sets of support mechanisms are evenly distributed on the conveyor belt three along the rotation direction of the conveyor belt three. The support mechanism includes a slider that is slidably mounted on the conveyor belt three in the front-back direction, an elastic element one that resets the slider on the conveyor belt three, and a connecting assembly for connecting with the inner ring of the bearing. The radial clearance detection mechanism includes a pusher platform fixedly installed on the second conveying mechanism and a distance measuring component 1 set on the connecting assembly. A wedge-shaped surface 1 is provided at the left end of the pusher platform. When the outer ring of the bearing rolls along the inclined surface to the straight surface, the distance measuring component 1 measures the shortest distance from the straight surface to the inner ring of the bearing.

2. The automatic bearing clearance detection device according to claim 1, characterized in that, The connecting assembly includes multiple support rods that are slidably mounted on the slider in the horizontal direction and a drive component for driving the support rods to move closer or further away synchronously. The multiple support rods are arranged in a circular array around the slider along the vertical center line. In the initial state, the multiple support rods are close to each other. When the conveyor belt moves the slider from top to bottom, the support rods are inserted into the inner ring of the bearing. When the bearing moves to the second conveying mechanism, the support rods move away from each other and are pressed against the inner ring of the bearing.

3. The automatic bearing clearance detection device according to claim 2, characterized in that, The driving component includes a motor mounted on a slider, multiple lead screws rotatably mounted on the slider, gears 1 mounted at their close ends, gears 2 meshing with gears 1 mounted at the output end of the motor, and a support rod sleeved on the lead screws 2, with the support rod and lead screws 2 being threaded together.

4. The automatic bearing clearance detection device according to claim 3, characterized in that, The ranging component includes a ranging sensor fixedly mounted on a support rod, and the support rod on which the ranging sensor is mounted is in close contact with the position closest to the straight surface on the inner ring of the bearing.

5. The automatic bearing clearance detection device according to claim 1, characterized in that, The detection device also includes an axial clearance detection mechanism, which includes a stop bar in front of the push platform, a lifting assembly for driving the slider to rise and fall on the conveyor belt three, and a distance measuring assembly two for detecting the height of the inner ring of the bearing. The stop bar abuts against the upper end face of the outer ring of the bearing, and the distance measuring assembly two is set on the conveyor belt three. After the distance measuring assembly one has finished measuring, the lifting assembly drives the slider to rise, and at this time the distance measuring assembly two measures the distance between the conveyor belt three and the slider.

6. The automatic bearing clearance detection device according to claim 5, characterized in that, Multiple rollers are rotatably mounted on the lower end face of the stop bar. The axis of the rollers is set along the front-back direction, and the multiple rollers are evenly distributed on the stop bar along the front-back direction.

7. The automatic bearing clearance detection device according to claim 5, characterized in that, The lifting assembly includes an elastic telescopic rod that slides along the conveyor belt three in the vertical direction, a lifting plate that is fixedly installed on the frame three, and an elastic element two for resetting the slider downwards. The lower end of the elastic telescopic rod is fixedly connected to the slider, and a boss is fixedly installed on the top end of the elastic telescopic rod. A wedge-shaped surface two is provided on the left end of the lifting plate. After the ranging assembly one finishes measuring, the boss moves along the wedge-shaped surface two, thereby causing the slider to move upwards.

8. The automatic bearing clearance detection device according to claim 7, characterized in that, The second ranging component includes a second ranging sensor fixedly installed on the third conveyor belt. The second ranging sensor is used to measure the distance between the third conveyor belt and the slider.

9. The automatic bearing clearance detection device according to claim 1, characterized in that, An "L"-shaped baffle extending in the front-to-back direction is fixedly installed on the first conveying mechanism. When feeding, the bearing is located on the right side of the baffle. After the inspection is completed, when a defective bearing is detected, the connecting assembly drives the bearing to move above the first conveying mechanism. When the connecting assembly moves from the upper side to the lower side of the conveyor belt, the connecting assembly disconnects from the inner ring of the bearing, causing the bearing to slide into the left side of the baffle.

10. The automatic bearing clearance detection device according to claim 5, characterized in that, The stop bar is slidably mounted on the push platform in the vertical direction. The push platform is provided with a locking component that locks the stop bar to the push platform. The frame three is slidably fitted on the second conveying mechanism in the front-back direction. The second conveying mechanism is provided with a driving component two that drives the frame three to move.

Images