Bearing unit clearance detection device
By designing the bearing unit clearance detection device, the automatic measurement of the rotation of the inner ring and the push of the outer ring of the bearing is achieved by using the servo motor and extrusion assembly, the problem of inefficient detection in the prior art is solved and the accuracy of the overall clearance of the bearing is achieved. Test.
Patent Information
- Application Number
- CN202420963928.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing bearing clearance detection device needs to manually push the outer ring or select a feeler gauge of appropriate thickness during inspection, and the single detection point cannot detect the overall clearance of the bearing, resulting in low detection efficiency.
A bearing unit clearance detection device is designed, including a workbench and an integral detection mechanism, and the bearing is realized by using servo motor, transmission shaft, active bevel gear, linkage bevel gear, passive bevel gear, screw rod, slide plate and extrusion assembly. Automatic measurement of ring rotation and outer ring push, comprehensive inspection of bearing outer ring through extrusion assembly.
It realizes accurate detection of automatically measuring the overall clearance of the bearing after the bearing is fixed, improves detection efficiency, and maintains detection accuracy when the bearing continues to rotate through the elastic support of the support spring.
Smart Images
Figure CN222144013U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearings, in particular to a bearing unit clearance detection device. Background Art
[0002] Bearings are an important component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. The bearing unit clearance detection device is a device used to measure the internal clearance of the bearing, usually consisting of a measuring device and a corresponding measuring method. The clearance refers to the gap between the ball or roller inside the bearing and the inner and outer rings. Measuring the clearance can reflect the use status of the bearing, which is very important for preventive maintenance and extending the life of the bearing. The measurement principle of the clearance detection device is usually based on the feeler gauge method, which is a method of measuring the clearance by inserting feeler gauges of different thicknesses. When measuring the radial clearance of a rolling bearing, the outer ring is fixed and the inner ring is moved to match the measurement. Select a feeler gauge of appropriate thickness and insert it into the gap to be measured. Pull the feeler gauge while adjusting it until you feel a slight resistance. At this time, the value marked by the feeler gauge is the measured clearance value.
[0003] For example, the Chinese patent "CN215373813U" discloses a bearing clearance measuring device, which proposes: the workbench is connected to a loading table for placing bearings, the workbench is connected to a clamping assembly, the clamping assembly includes a support rod connected to the upper surface of the workbench, and a pressure ring rotatably connected to the support rod, an elastic assembly is connected between the support rod and the pressure plate, and the pressure ring is pressed on the inner ring of the bearing by the force of the elastic assembly. This application has the effect of achieving rapid locking of the bearing.
[0004] It can be seen from the above-mentioned device that although the above-mentioned device provides a better method for fast locking and fixing when measuring bearings, the applicant believes that the following defects still exist:
[0005] When inspecting bearings, existing bearing clearance detection devices need to manually push the outer ring after the bearing is fixed or select a feeler gauge of appropriate thickness to detect the bearing clearance. In addition, the detection point is single and it is impossible to detect the overall bearing clearance. A very small number of devices with rotation detection also need to control the rotation of the bearing inner ring and the push of the push plate separately, and cannot control them simultaneously, resulting in low detection efficiency. Utility Model Content
[0006] 1. Technical issues to be resolved
[0007] In view of the deficiencies in the prior art, the utility model provides a bearing unit clearance detection device, which has the advantage of being able to push the outer ring of the bearing while the inner ring of the bearing is rotated after the bearing is fixed, so as to automatically measure the overall clearance. This solves the problem that the existing bearing clearance detection device needs to manually push the outer ring after the bearing is fixed or select a feeler gauge of appropriate thickness to detect the bearing clearance when detecting the bearing, and the detection point is single and cannot detect the overall clearance of the bearing. A very small number of devices with rotation detection also need to control the rotation of the bearing inner ring and the pushing of the push plate separately, and cannot control them simultaneously, resulting in low detection efficiency.
[0008] (II) Technical solution
[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bearing unit clearance detection device, comprising a workbench, a slide groove is provided on the outer wall of the workbench, and an integral detection mechanism is arranged inside the workbench;
[0010] The overall detection mechanism includes a servo motor, which is fixedly connected to a transmission shaft via an output shaft, and the transmission shaft is movably installed inside a transmission shaft base. An active bevel gear is fixedly connected to an outer wall of the transmission shaft, and a linkage bevel gear is installed on the active bevel gear through surface tooth meshing, and a passive bevel gear is installed on the linkage bevel gear through surface tooth meshing. When the transmission shaft base rotates, the linkage bevel gear and the passive bevel gear rotate together, a lead screw is fixedly connected to an outer wall of the passive bevel gear, and a slide plate is installed on the lead screw through surface thread meshing, a support plate is fixedly installed on an outer wall of the slide plate, and the support plate is movably installed inside a slide groove, and an extrusion assembly is provided on the outer wall of the support plate.
[0011] Preferably, a rotating shaft is fixedly installed above the linked bevel gear, the rotating shaft is movably installed inside the workbench and extends from the top, and a lower fastening head is arranged above the rotating shaft.
[0012] Preferably, both ends of the screw rod are movably installed inside the screw rod base, the screw rod base is fixedly installed on the inner wall of the workbench, two limit rods are movably installed inside the two sides of the slide plate, both ends of the limit rod are fixedly installed inside the limit rod base, and the limit rod base is fixedly installed inside the workbench.
[0013] Preferably, two telescopic rods are arranged on both sides of the outer wall of the workbench, a top plate is fixedly connected above the two telescopic rods, and an upper fastening head is arranged below the top plate.
[0014] Preferably, the upper fastening head and the lower fastening head are arranged correspondingly, and the outer walls of the upper fastening head and the lower fastening head are both trapezoidal arc surfaces.
[0015] Preferably, a connecting plate is provided below the top plate, a shell column is fixedly mounted on the inner wall of the connecting plate, a test gauge is fixedly connected to the outer wall of the shell column, a pressure head is provided on the outer wall of the test gauge, and the pressure head is movably mounted inside the shell column.
[0016] Preferably, the extrusion assembly includes a sleeve rod, which is fixedly mounted on the outer wall of the extrusion assembly, the sleeve rod having a support spring disposed inside the sleeve rod, the outer wall of the support spring is fixedly connected to a push rod, and the outer wall of the push rod is fixedly connected to an extrusion head.
[0017] (III) Beneficial effects
[0018] Compared with the prior art, the utility model provides a bearing unit clearance detection device, which has the following beneficial effects:
[0019] 1. The bearing unit clearance detection device, through the cooperation between the overall detection mechanism and the extrusion assembly, drives the extrusion head to continuously squeeze the outer ring of the bearing while the fastening head drives the bearing to rotate under control. The value change of the pressure gauge is observed through continuous extrusion, thereby performing a comprehensive detection of the bearing and making the detection result more accurate.
[0020] 2. The bearing unit clearance detection device is provided with an extrusion component, so that during the continuous rotation detection of the bearing, since the value of the bearing clearance is certain and will not change due to the size of the force, the elasticity of the support spring can support the extrusion head to fully detect the outer ring of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 This is a schematic diagram of the detection state structure of the utility model;
[0023] Figure 3 This is a schematic diagram of the internal structure of the workbench of the utility model;
[0024] Figure 4 It is a schematic diagram of the internal structure of the sleeve rod of the utility model.
[0025] The numbers in the figure are:
[0026] 1. Workbench; 11. Slide; 12. Telescopic rod; 13. Top plate; 14. Connecting plate; 15. Shell column; 16. Inspection table; 17. Pressure head; 18. Upper fastening head; 2. Overall inspection mechanism; 21. Servo motor; 22. Transmission shaft; 23. Transmission shaft base; 24. Active bevel gear; 25. Linkage bevel gear; 26. Rotating shaft; 27. Lower fastening head; 28. Passive bevel gear; 29. Screw; 210. Screw base; 211. Slide plate; 212. Limit rod; 213. Limit rod base; 214. Support plate; 3. Extrusion assembly; 31. Sleeve rod; 32. Support spring; 33. Push rod; 34. Extrusion head. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] See also Figure 1-2 A bearing unit clearance detection device includes a workbench 1, a slide groove 11 is opened on the outer wall of the workbench 1, an integral detection mechanism 2 is arranged inside the workbench 1, two telescopic rods 12 are arranged on both sides of the outer wall of the workbench 1, a top plate 13 is fixedly connected above the two telescopic rods 12, an upper fastening head 18 is arranged below the top plate 13, a connecting plate 14 is arranged below the top plate 13, a shell column 15 is fixedly installed on the inner wall of the connecting plate 14, a detection gauge 16 is fixedly connected to the outer wall of the shell column 15, a pressure head 17 is arranged on the outer wall of the detection gauge 16, and the pressure head 17 is movably installed inside the shell column 15.
[0029] See also Figure 1-3The overall detection mechanism 2 includes a servo motor 21, the servo motor 21 is fixedly connected to a transmission shaft 22 through an output shaft, the transmission shaft 22 is movably installed inside a transmission shaft base 23, an active bevel gear 24 is fixedly connected to the outer wall of the transmission shaft 22, the active bevel gear 24 is installed with a linkage bevel gear 25 through surface tooth meshing, the linkage bevel gear 25 is installed with a passive bevel gear 28 through surface tooth meshing, when the transmission shaft base 23 rotates, the linkage bevel gear 25 and the passive bevel gear 28 rotate together, the outer wall of the passive bevel gear 28 is fixedly connected to a lead screw 29, the lead screw 29 is installed with a slide plate 211 through surface thread meshing, the outer wall of the slide plate 211 is fixedly installed with a support plate 214, and the support plate 214 is movably installed Installed inside the slide groove 11, the outer wall of the support plate 214 is provided with an extrusion component 3, a rotating shaft 26 is fixedly installed above the linkage bevel gear 25, the rotating shaft 26 is movably installed inside the workbench 1 and extends from the top, a lower fastening head 27 is arranged above the rotating shaft 26, the upper fastening head 18 and the lower fastening head 27 are arranged correspondingly, and the outer walls of the upper fastening head 18 and the lower fastening head 27 are both trapezoidal arc surfaces: the two ends of the screw rod 29 are movably installed inside the screw rod base 210, the screw rod base 210 is fixedly installed on the inner wall of the workbench 1, and two limit rods 212 are movably installed inside the two sides of the slide plate 211, and the two ends of the limit rod 212 are fixedly installed inside the limit rod base 213, and the limit rod base 213 is fixedly installed inside the workbench 1.
[0030] See also Figure 4 The extrusion assembly 3 includes a sleeve rod 31, which is fixedly installed on the outer wall of the extrusion assembly 3. The sleeve rod 31 has a support spring 32 arranged inside it. The outer wall of the support spring 32 is fixedly connected to a push rod 33, and the outer wall of the push rod 33 is fixedly connected to an extrusion head 34.
[0031] Working principle: First, when using the equipment for clearance detection, place the inner ring of the bearing to be detected outside the lower fastening head 27, and then control the telescopic rod 12 to descend so that the upper fastening head 18 is also inserted into the inner ring of the bearing. The two fastening heads are both set to trapezoidal arc surfaces, so that the diameter of the inner ring of the bearing can be adapted by the insertion depth, and the bearing can be accurately fixed. When the upper fastening head 18 descends to fix the bearing, the top plate 13 drives the detection gauge 16 to descend, and the pressure head 17 of the detection gauge 16 fits the outer wall of the bearing. At this moment, it is necessary to record the value on the pressure gauge 16.
[0032] Secondly, after the minimum value is recorded, the servo motor 21 is turned on. The servo motor 21 drives the active bevel gear 24 to rotate through the transmission shaft 22. The active bevel gear 24 drives the linkage bevel gear 25 to rotate while rotating. When the linkage bevel gear 25 rotates, it drives the lower fastening head 27 above to rotate. The upper fastening head 27 presses down to tighten the bearing. The bearing rotates with the lower fastening head 27 through friction. When the lower fastening head 27 rotates, the linkage bevel gear 25 drives the passive bevel gear 28 to rotate. When the passive bevel gear 28 rotates, it drives the screw rod 29 to rotate. When the screw rod 29 rotates, the slide plate 2 11 Through the limiting movement of the limiting rod 212, the slide plate 211 moves outside the screw rod 29, and the slide plate 211 drives the support plate 214 to move toward the outer wall of the bearing. When moving to the outer ring of the bearing, the extrusion head 34 contacts the outer ring of the bearing and squeezes the outer ring of the bearing. After squeezing, the value change on the detection table 16 is recorded, and when the bearing continues to rotate, through the elasticity of the support spring 32, and the bearing clearance value is certain, the support spring 32 can support the extrusion head 34 to follow the bearing to rotate one circle for detection. After the detection is completed, the bearing clearance value can be obtained by subtracting the initial value from the value after squeezing.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A bearing unit clearance detection device, comprising a workbench (1), characterized in that: The outer wall of the workbench (1) is provided with a slide groove (11), and an integral detection mechanism (2) is arranged inside the workbench (1); The integral detection mechanism (2) comprises a servo motor (21), the servo motor (21) being fixedly connected to a transmission shaft (22) via an output shaft, the transmission shaft (22) being movably mounted inside a transmission shaft base (23), an active bevel gear (24) being fixedly connected to an outer wall of the transmission shaft (22), the active bevel gear (24) being mounted with a linkage bevel gear (25) via surface tooth meshing, and the linkage bevel gear (25) being mounted with a passive bevel gear (28) via surface tooth meshing. When the transmission shaft base (23) rotates, the linkage bevel gear (25) and the passive bevel gear (28) rotate together; the outer wall of the passive bevel gear (28) is fixedly connected with a screw rod (29); the screw rod (29) is mounted with a slide plate (211) through surface thread engagement; the outer wall of the slide plate (211) is fixedly mounted with a support plate (214); the support plate (214) is movably mounted inside the slide groove (11); and the outer wall of the support plate (214) is provided with an extrusion assembly (3).
2. A bearing unit clearance detection device according to claim 1, characterized in that: A rotating shaft (26) is fixedly mounted above the linkage bevel gear (25); the rotating shaft (26) is movably mounted inside the workbench (1) and extends from the top; a lower fastening head (27) is arranged above the rotating shaft (26).
3. A bearing unit clearance detection device according to claim 2, characterized in that: The two ends of the screw rod (29) are movably mounted inside the screw rod base (210), and the screw rod base (210) is fixedly mounted on the inner wall of the workbench (1). Two limit rods (212) are movably mounted inside the two sides of the slide plate (211), and the two ends of the limit rod (212) are fixedly mounted inside the limit rod base (213), and the limit rod base (213) is fixedly mounted inside the workbench (1).
4. A bearing unit clearance detection device according to claim 2, characterized in that: Two telescopic rods (12) are arranged on both sides of the outer wall of the workbench (1), a top plate (13) is fixedly connected above the two telescopic rods (12), and an upper fastening head (18) is arranged below the top plate (13).
5. A bearing unit clearance detection device according to claim 4, characterized in that: The upper fastening head (18) and the lower fastening head (27) are arranged correspondingly, and the outer walls of the upper fastening head (18) and the lower fastening head (27) are both trapezoidal arc surfaces.
6. A bearing unit clearance detection device according to claim 4, characterized in that: A connecting plate (14) is provided below the top plate (13); a shell column (15) is fixedly mounted on the inner wall of the connecting plate (14); a detection gauge (16) is fixedly connected to the outer wall of the shell column (15); a pressure head (17) is provided on the outer wall of the detection gauge (16); and the pressure head (17) is movably mounted inside the shell column (15).
7. A bearing unit clearance detection device according to claim 1, characterized in that: The extrusion assembly (3) comprises a sleeve rod (31), the sleeve rod (31) being fixedly mounted on the outer wall of the extrusion assembly (3), the sleeve rod (31) having a support spring (32) disposed inside the sleeve rod (31), the outer wall of the support spring (32) being fixedly connected to a push rod (33), and the outer wall of the push rod (33) being fixedly connected to an extrusion head (34).