Insulating bearing outer ring insulating layer detection device
By introducing a clamping mechanism into the tensile testing machine, the problem of workpiece detachment causing equipment damage was solved, achieving safe and efficient insulation layer testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-07
AI Technical Summary
Existing tensile testing machines pose a risk of workpiece detachment when testing the insulation layer of the outer ring of insulated bearings, leading to equipment damage and insufficient safety.
An insulated bearing outer ring insulation layer testing device was designed. A clamping mechanism is used to assist in clamping the workpiece, including a mounting bracket, a universal bracket, a support rod, and an adjusting block, to ensure that the workpiece does not fall off during the pull-out test.
This improves the safety of the testing process, prevents workpieces from falling off, reduces the possibility of equipment damage, and ensures the smooth progress of the testing.
Smart Images
Figure CN224095544U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bearing testing technology, and in particular relates to a device for testing the insulation layer of the outer ring of an insulated bearing. Background Technology
[0002] Bearings consist of an inner ring, an outer ring, balls, and a cage. Their primary function is to support rotating mechanical structures. Electrically insulated bearings utilize a special spraying process to coat the outer surface with a high-quality film. This film has strong adhesion to the substrate and excellent insulation properties, preventing electrolytic corrosion from induced currents and protecting the bearing from damage caused by current to the grease, rolling elements, and raceways, thus extending the bearing's service life. In insulated bearings, a coating layer is applied to the outer or inner ring surface. A special spraying process creates a uniformly thick and highly adhesive coating, which, after further treatment, becomes unaffected by moisture and humidity.
[0003] Currently, for bearing rings coated with an insulating layer, the stability of the coating is particularly important. In existing technology, the effect of the bearing insulating layer coating is usually tested using a tensile testing machine. The workpiece is placed on the clamping end of the tensile testing machine, especially the insulating layer, and then the tensile testing machine is controlled to perform a pull-out test on the insulating layer. This processing method can effectively obtain the coating effect of the insulating coating. However, the above equipment still has certain drawbacks in use: the tensile testing machine runs continuously, and when the pull-out limit of the insulating coating is reached, the insulating coating will peel off. Since the location of the peeling is unpredictable, the workpiece may fall off, and in severe cases, it may damage the equipment. The safety is not good and cannot meet the usage requirements. Utility Model Content
[0004] This utility model addresses the technical problems existing in the use of the tensile testing machine mentioned above by proposing a device for testing the outer ring insulation layer of an insulated bearing. The device is reasonably designed, simple in structure, easy to process, and can achieve auxiliary clamping of the workpiece to be tested, ensuring the smooth progress of the testing work. At the same time, it prevents the workpiece from falling off, reduces the possibility of equipment damage, ensures safety, and meets the usage requirements.
[0005] To achieve the above objectives, the present invention provides a tensile testing machine body for testing the insulation layer of the outer ring of an insulated bearing. The tensile testing machine body includes a housing, a vertical frame is provided above the housing, a lifting mechanism is provided inside the vertical frame, an upper test clamp is provided above the vertical frame, a carrier is provided on the lifting mechanism, a lower test clamp is provided on the carrier, and a clamping mechanism for auxiliary clamping of the workpiece is provided on the rear side of the carrier. The clamping mechanism includes a mounting frame, a concave-shaped crossbeam is provided above the mounting frame, a universal joint is provided at the end of the crossbeam, a concave-shaped support rod is provided on one side of the universal joint and is plugged into the universal joint, an adjusting block is provided on the outer side of the support rod, a bearing ring is placed on the support rod located between the left and right adjusting blocks, and a fastening screw is provided on the outer side of the adjusting block.
[0006] Preferably, the universal joint includes key plates, with connecting screws at the geometric center of two key plates arranged side by side, and locking nuts on the outer side of the connecting screws. The end of the crossbar is provided with a first ball head and placed below the key plates. A connecting sleeve is provided on the upper side of the two key plates, with a second ball head on one side of the connecting sleeve. One side of the connecting sleeve is fitted onto the outer side of the support rod, and an mounting screw is provided on the outer side of the connecting sleeve.
[0007] Preferably, the mounting bracket includes a base, a lifting rod is provided above the base, a locking screw is provided on the outside of the base, and a mounting seat is provided on the upper side of the lifting rod.
[0008] Preferably, the mounting base has a groove inside, and the crossbeam corresponding to the groove has a mounting groove on its outer periphery. The outer side of the mounting base is provided with a locking screw to lock the connection between the crossbeam and the mounting base.
[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0010] 1. This utility model provides an insulating bearing outer ring insulation layer testing device. Utilizing a clamping mechanism, it can auxiliaryly clamp the workpiece to be tested and moves with the lower test clamp without detaching from the workpiece. This avoids the possibility of the workpiece falling due to insulation layer detachment, prevents damage to the testing equipment, improves the safety of the equipment's location, and ensures usage requirements are met. The device is reasonably designed, simple in structure, easy to manufacture, and can achieve auxiliary clamping of the workpiece to be tested, ensuring the smooth progress of the testing work. Simultaneously, it prevents the workpiece from falling, reduces the possibility of equipment damage, ensures safety, and meets usage requirements. Attached Figure Description
[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of a device for detecting the insulation layer of the outer ring of an insulated bearing.
[0013] Figure 2 This is a front view of the structure of an insulated bearing outer ring insulation layer detection device;
[0014] Figure 3 This is a side view of the structure of an insulated bearing outer ring insulation layer detection device;
[0015] Figure 4 This is a schematic diagram of the clamping mechanism;
[0016] Figure 5 This is a schematic diagram of the clamping mechanism from another perspective;
[0017] In the above figures, 1. Housing; 2. Stand; 3. Lifting mechanism; 4. Upper test clamp; 5. Carrier; 6. Lower test clamp; 7. Mounting bracket; 71. Base; 72. Lifting rod; 73. Locking screw; 74. Mounting seat; 741. Groove; 8. Horizontal frame; 81. First ball head; 82. Mounting slot; 9. Universal bracket; 91. Key plate; 92. Connecting screw; 93. Locking nut; 94. Connecting sleeve; 941. Second ball head; 95. Mounting screw; 10. Support rod; 11. Adjusting block; 111. Fastening screw; 12. Bearing ring; 13. Locking screw; 14. Clamping mechanism. Detailed Implementation
[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0020] Examples, such as Figures 1-5As shown, an insulated bearing outer ring insulation layer testing device includes a tensile testing machine body for testing the insulation layer of the outer ring of the insulated bearing. The tensile testing machine body includes a housing 1, a stand 2 is arranged above the housing 1, a lifting mechanism 3 is arranged inside the stand 2, an upper test clamp 4 is arranged above the stand 2, a carrier 5 is arranged on the lifting mechanism 3, and a lower test clamp 6 is arranged on the carrier 5. The above-mentioned equipment components are all conventional components of tensile testing machines in the prior art. In this embodiment, when using it to test the insulated bearing, the upper test clamp 4 and the lower test clamp 6 are used to clamp the insulation layer on the outer side of the bearing. Then, the lifting mechanism 3 is controlled to move, causing the lower test clamp 6 to move downward to simulate the tensile testing process. As the lower test clamp 6 moves, the tension gradually increases, thereby ensuring the smooth progress of the insulation layer pull-out test. Of course, the specific working principle and control method are readily known to those skilled in the art, and will not be elaborated further. This embodiment aims to address the possibility of workpieces falling during pull-out testing. A clamping mechanism 14 is provided on the rear side of the carrier 5 to assist in clamping the workpiece. The clamping mechanism 14 includes a mounting frame 7, a concave-shaped crossbeam 8 above the mounting frame 7, a universal joint 9 at the end of the crossbeam 8, and a concave-shaped support rod 10 on one side of the universal joint 9, which is plugged into the universal joint 9. An adjustment block is provided on the outer side of the support rod 10. 11. A bearing ring 12 is placed on the support rod 10 located between the two adjusting blocks 11 on the left and right. A fastening screw 111 is provided on the outside of the adjusting block 11. Specifically, the mounting frame 7 of the clamping mechanism 14 is installed on the rear side of the carrier 5 and can move vertically together with the carrier 5 as the lifting mechanism 3 operates. This ensures that the clamping mechanism 14 can always provide auxiliary clamping for the workpiece and will not affect its inspection work. When using it, first adjust the position of the mounting frame 7, then adjust the position of the universal joint 9, take the support rod 10, pre-fit the workpiece from one side of the support rod 10, and make the end faces of the two adjusting blocks 11 and the outer end faces of the bearing ring 12 on both sides. Align the support rod 10 with the bearing ring 12, tighten the fastening screw 111 to ensure stable engagement between the support rod 10 and the bearing ring 12. Then, insert both ends of the support rod 10 carrying the bearing ring 12 into the connecting sleeve 94 of the universal frame 9 and tighten it to limit the position of the workpiece. Then, control the operation of the tensile testing machine body and ensure that the upper test clamp 4 and the lower test clamp 6 respectively clamp the insulation layer of the workpiece. Then, perform the pull-out test. When the insulation layer reaches the detachment limit, the upper test clamp 4 or the lower test clamp 6 may detach from the insulation layer. In this way, the clamping mechanism 14 will play an auxiliary clamping role to prevent it from falling and damaging the equipment, and also ensure the safety of the test position to a certain extent, meeting the usage requirements.
[0021] In the above process: the clamping mechanism 14 can assist in clamping the workpiece to be tested, and it moves with the lower test clamp 6 without detaching from the workpiece, avoiding the possibility of the workpiece falling due to the workpiece insulation layer peeling off, preventing damage to the testing equipment, and improving the safety of the equipment location, thus ensuring the requirements of use. This device is reasonably designed, simple in structure, easy to process, and can achieve the auxiliary clamping of the workpiece to be tested, ensuring the smooth progress of the testing work. At the same time, it prevents the workpiece from falling off, reduces the possibility of equipment damage, ensures safety, and meets the requirements of use.
[0022] To facilitate the installation of the support rod 10, the universal joint 9 includes key plates 91. A connecting screw 92 is located at the geometric center of two side-by-side key plates 91. A locking nut 93 is located on the outer side of the connecting screw 92. A first ball head 81 is located at the end of the crossbar 8, positioned below the key plates 91. A connecting sleeve 94 is located above the two key plates 91. A second ball head 941 is located on one side of the connecting sleeve 94. One side of the connecting sleeve 94 is fitted onto the outer side of the support rod 10. An installation screw 95 is located on the outer side of the connecting sleeve 94. Specifically, both ends of the inner sides of the two key plates 91 have arc-shaped grooves that mate with the first ball head 81 and the second ball head 941 to ensure a tight connection between components. During installation, the first ball head 81 is first engaged with the lower side of the universal joint 9, and then the second ball head 941 of the connecting sleeve 94 is engaged. The head 941 mates with the other side of the key plate 91. When the two key plates 91 are arranged vertically according to the specifications and dimensions of the workpiece to be inspected, the adjusting block 11 can mate with the rear side of the workpiece. When the two key plates 91 are arranged horizontally, the adjusting block 11 can mate with the front side of the workpiece. This design is particularly useful for clamping workpieces with different inner ring sizes. This design greatly improves the functionality of the device. Of course, users can also adjust the position of the key plate 91 according to the actual situation. Just make sure that after the support rod 10 is installed, the adjusting block 11 can clamp on both sides of the bearing ring 12. After the position of the key plate 91 is adjusted, the locking nut 93 is tightened to clamp the two key plates 91 together, thereby completing the fastening of the connecting sleeve 94 and preventing the equipment from loosening and shifting, thus ensuring the requirements of use.
[0023] To further improve the functionality of the device, the mounting frame 7 includes a base 71, with a lifting rod 72 mounted on the upper part of the base 71 and a locking screw 73 mounted on the outer side of the base 71. A mounting seat 74 is mounted on one side above the lifting rod 72. Specifically, considering that the geometric center positions of bearing rings 12 workpieces of different specifications and sizes are different, the mounting frame 7 is designed to be lifting. The positions of the lifting rod 72 and the mounting seat 74 can be adjusted in a timely manner according to the geometric center position of the workpiece. Then, the position of the lifting rod 72 is locked using the locking screw 73 to ensure its stability. In this way, after the position of the mounting seat 74 is adjusted, the positions of the crossbeam 8, the universal joint 9, and the support rod 10 are determined. In particular, the adjusting block 11 is positioned laterally at the geometric center of the workpiece, providing convenient conditions for stable clamping of the workpiece and meeting the usage requirements.
[0024] To further improve the rationality of the device setup and ensure the stability of the connection between devices, a groove 741 is provided in the mounting base 74, and a mounting slot 82 is provided on the outer periphery of the crossbeam 8 corresponding to the groove 741. A locking screw 13 is provided on the outer side of the mounting base 74 to lock the connection between the crossbeam 8 and the mounting base 74. Specifically, the mounting slot 82 is semi-circular in design, so that the geometric center of the crossbeam 8 can form a concave shape, which can then be engaged with the mounting base 74. The locking screw 13 is then used to lock the connection between the two to ensure the stability of the connection and prevent it from shifting.
[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A device for testing the insulation layer of an outer ring of an insulated bearing, comprising a tensile testing machine body for testing the insulation layer of the outer ring of an insulated bearing, the tensile testing machine body comprising a housing, a support frame disposed above the housing, a lifting mechanism disposed within the support frame, an upper test clamp disposed above the support frame, a carrier frame disposed on the lifting mechanism, and a lower test clamp disposed on the carrier frame, characterized in that, The rear side of the carrier is provided with a clamping mechanism that assists in clamping the workpiece. The clamping mechanism includes a mounting frame, a concave-shaped crossbeam above the mounting frame, a universal joint at the end of the crossbeam, a concave-shaped support rod on one side of the universal joint, and a plug-in connection between the support rod and the universal joint. An adjustment block is provided on the outside of the support rod, a bearing ring is placed on the support rod between the left and right adjustment blocks, and a fastening screw is provided on the outside of the adjustment block.
2. The device for detecting the insulation layer of the outer ring of an insulated bearing according to claim 1, characterized in that, The universal joint includes key plates, with a connecting screw at the geometric center of two key plates arranged side by side. A locking nut is provided on the outside of the connecting screw. A first ball head is provided at the end of the crossbar and is located below the key plates. A connecting sleeve is provided on the upper side of the two key plates. A second ball head is provided on one side of the connecting sleeve. One side of the connecting sleeve is fitted onto the outside of the support rod. An installation screw is provided on the outside of the connecting sleeve.
3. The device for detecting the insulation layer of the outer ring of an insulated bearing according to claim 2, characterized in that, The mounting bracket includes a base, a lifting rod is provided above the base, a locking screw is provided on the outside of the base, and a mounting seat is provided on the upper side of the lifting rod.
4. The device for detecting the insulation layer of the outer ring of an insulated bearing according to claim 3, characterized in that, The mounting base has a groove inside, and the crossbeam corresponding to the groove has a mounting groove on its outer periphery. The outer side of the mounting base is provided with a locking screw to lock the connection between the crossbeam and the mounting base.