Limiting tool for bearing experiment
By designing the limit workpiece, the problems of wear and disassembly and assembly damage in bearing experiments were solved, and the stable rotation and accurate detection of the bearing were achieved.
Patent Information
- Application Number
- CN202421635572.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-11
AI Technical Summary
In bearing experiments, existing tooling cannot effectively protect the bearing from wear, and it is difficult to achieve stable rotation of the outer ring of the bearing and not damage the bearing surface during disassembly and assembly.
A limit workpiece is designed, including the base plate of the experimental equipment, pulley base, bearing fastening and installation module and bearing driven module. The inner ring of the bearing is limited through non-contact means, and the pulley and servo motor drive the outer ring of the bearing to avoid wear caused by direct contact.
The bearing protection during the experiment is achieved, ensuring rotation stability and accuracy of experimental results, while avoiding damage during disassembly and assembly.
Smart Images
Figure CN223050862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bearings, especially the field of bearing detection technology, and specifically relates to a limit tooling during bearing experiments. Background Art
[0002] During bearing experiments, a tooling is needed to limit the inner ring of the bearing and at the same time create a condition where the outer ring of the bearing can be driven by a belt to rotate. During the experiment, the outer ring of the bearing is driven by a servo motor through a belt to reach a specific rotational speed and operate for a specific time. After the experiment, it is necessary to disassemble and inspect the bearing to calculate the wear on various components and determine the service life of the bearing, or to check whether the overall design of the bearing to be tested can operate smoothly at a specific speed. This tooling first needs to be reusable, and secondly, it needs to protect the entire bearing. For example, the outer ring of the bearing cannot be directly in contact with the belt. Otherwise, once wear occurs on the bearing surface during the detection process, the operating efficiency and smoothness of the bearing will decrease, making its rotational stability worse, and the internal wear will be much more serious than normal, misleading the experimental results. Finally, when disassembling and assembling this tooling, it cannot cause damage to the bearing surface, such as directly contacting the outer ring or inner ring of the bearing with bolts and providing a locking force to achieve an effect similar to fixing or connecting transmission. Summary of the Invention
[0003] In view of the above-mentioned disadvantages of the prior art, the purpose of the utility model is to provide a limit tooling during bearing experiments to solve the difficulties of the prior art.
[0004] To achieve the above purpose and other related purposes, the utility model provides a limit tooling during bearing experiments, including:
[0005] An experimental equipment base plate 1, and a pulley base 2 is connected and arranged at the center of the top end of the experimental equipment base plate 1 through bolts;
[0006] The pulley base 2, an installation boss 21 is arranged on the top of the pulley base 2, and a bearing to be tested 3 is sleeved on the outside of the installation boss 21 with a clearance fit;
[0007] A bearing fastening and installation module 4, one side of the bearing fastening and installation module 4 is clamped in the center of the installation boss 21, and the other side of the bearing fastening and installation module 4 abuts against the side of the inner ring of the bearing to be tested 3 far away from the experimental equipment base plate 1;
[0008] A bearing driven module 5, the bearing driven module 5 is sleeved on the outside of the bearing to be tested 3, and the bearing driven module 5 is in contact with the outer side wall of the outer ring of the bearing to be tested 3.
[0009] According to the preferred scheme, the outer diameter of the installation boss 21 is smaller than the outer diameter of the pulley base 2, and the outer diameter of the installation boss 21 is the same as the inner diameter of the inner ring of the bearing to be tested 3.
[0010] According to the preferred solution, the outer ring of the bearing 3 to be measured does not contact the pulley base 2.
[0011] According to the preferred solution, the bearing fastening and installation module 4 includes:
[0012] A first threaded hole 41, the first threaded hole 41 is opened in the center of the pulley base 2, and one side of the first threaded hole 41 extends outward through the mounting boss 21;
[0013] An end cover 42, the end cover 42 abuts against the side of the inner ring of the bearing 3 to be measured away from the experimental equipment base plate 1, a limiting boss 43 is arranged on one side of the end cover 42 close to the mounting boss 21, a rubber protective sleeve is arranged outside the limiting boss 43, and the rubber protective sleeve is in interference fit with the inner side wall of the inner ring of the bearing 3 to be measured;
[0014] A locking screw 44, the locking screw 44 is arranged in the center of the end cover 42, and one side of the locking screw 44 passes through the rubber protective sleeve and is clamped in the first threaded hole 41 through thread fit.
[0015] According to the preferred solution, the bearing driven module 5 includes:
[0016] A pulley 51, the pulley 51 is sleeved outside the bearing 3 to be measured, a limiting hole 52 is arranged in the center of the pulley 51, the limiting hole 52 is in transitional fit with the bearing 3 to be measured, wedge grooves 53 are arranged at equal intervals on the outer side wall of the pulley 51, and second threaded holes are arranged around one end of the pulley 51 away from the experimental equipment base plate 1;
[0017] A pressing drive sleeve 54, the pressing drive sleeve 54 is in a T shape, the bottom of the pressing drive sleeve 54 abuts against the side of the outer ring of the bearing 3 to be measured away from the experimental equipment base plate 1, the top of the pressing drive sleeve 54 contacts the side of the pulley 51 away from the experimental equipment base plate 1, connecting bolts 55 are arranged around the top of the pressing drive sleeve 54, and the bottom of the connecting bolts 55 passes through the pressing drive sleeve 54 and is clamped in the second threaded hole through thread fit.
[0018] According to the preferred solution, the aperture of the limiting hole 52 on the side away from the experimental equipment base plate 1 is larger than that on the other side, and the aperture of the limiting hole 52 on the side away from the experimental equipment base plate 1 is the same as the outer diameter of the bearing 3 to be measured.
[0019] The utility model adopts an experimental equipment bottom plate, a pulley base, a bearing fastening installation module and a bearing driven module, the bearing to be tested is pressed into a limiting hole in the pulley, the bearing to be tested and the pulley are sleeved on a mounting boss, an end cover is placed on one side of the bearing to be tested, a limiting clamping platform on one side of the end cover is pressed into the inner ring of the bearing to be tested, a locking screw is passed through the end cover and screwed into a No. 1 threaded hole, the bearing to be tested is limited in the limiting hole, a clamping drive sleeve is installed on one side of the pulley, the connecting bolt is tightened, the other side of the clamping drive sleeve is pressed against the outer ring of the bearing to be tested, the pulley is turned by hand, and if the pulley rotates smoothly, the installation is completed.
[0020] The best embodiment of the present invention will be described in more detail below in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 Shown is a cross-sectional schematic diagram of the utility model;
[0022] Figure 2 The display is an enlarged schematic diagram of the middle section of the utility model close to the side of the bearing to be tested;
[0023] Description of symbols
[0024] 1. Experimental equipment base plate;
[0025] 2. Pulley base; 21. Mounting boss;
[0026] 3. Bearing to be tested;
[0027] 4. Bearing fastening installation module; 41. No. 1 threaded hole; 42. End cover; 43. Limiting card table; 44. Locking screw;
[0028] 5. Bearing driven module; 51. Pulley; 52. Limiting hole; 53. Wedge groove; 54. Pressing drive sleeve; 55. Connecting bolt; DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of 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.
[0030] Compared with the embodiments shown in the drawings, the feasible embodiments within the protection scope of the present utility model may have fewer components, have other components not shown in the drawings, different components, components arranged differently, or components connected differently, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.
[0031] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the field to which the present utility model pertains. The terms "first", "second" and similar terms used in the description and claims of the patent application of the present utility model do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not necessarily denote a quantity limitation. The terms "comprising" or "including" and similar terms mean that the elements or items appearing before the term cover the elements or items listed after the term and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0032] The present utility model provides a limiting tooling during bearing experiments, which is used in the bearing experiment process. The present utility model does not limit the types of bearings to be detected, but the structures of the experimental equipment bottom plate 1, pulley base 2, bearing fastening and installation module 4, and bearing driven module 5 are particularly suitable for the experiment of bearing properties.
[0033] Generally, the limiting tooling during bearing experiments proposed by the present utility model mainly includes: the experimental equipment bottom plate 1, pulley base 2, bearing fastening and installation module 4, and bearing driven module 5. Among them, reference can be made to Figure 1 , which shows the layout relationship of the experimental equipment bottom plate 1, pulley base 2, bearing fastening and installation module 4, and bearing driven module 5.
[0034] When the limit tooling for bearing experiment proposed by the utility model is in use, the bearing 3 to be tested is pressed into the limit hole 52 in the pulley 51. The bearing 3 to be tested and the pulley 51 are sleeved on the mounting boss 21. A end cover 42 is placed on one side of the bearing 3 to be tested. The limit clamping platform 43 on one side of the end cover 42 is pressed into the inner ring of the bearing 3 to be tested. The locking screw 44 is passed through the end cover 42 and screwed into the first threaded hole 41. The bearing 3 to be tested is limited in the limit hole 52. A pressing drive sleeve 54 is installed on one side of the pulley 51, and the connecting bolt 55 is tightened. The other side of the pressing drive sleeve 54 abuts against the outer ring of the bearing 3 to be tested. If the pulley 51 rotates smoothly by hand, the installation is completed. If there is obvious jamming during rotation, it needs to be disassembled and reinstalled. After installation, a multi-wedge belt is sleeved outside the pulley 51 of the limit tooling for bearing experiment and connected to the motor, so that the pulley 51 can be driven by the servo motor. The rotation speed and running time of the servo motor are adjusted according to the experimental plan. After the experiment is completed, the multi-wedge belt is removed, and the bearing 3 to be tested is removed. The bearing 3 to be tested is disassembled to detect the wear on various components and calculate the service life of the bearing.
[0035] At the center of the top end of the above-mentioned experimental equipment base plate 1, a pulley base 2 is connected by bolts. The top of the pulley base 2 is provided with a mounting boss 21. The mounting boss 21 is sleeved with a bearing 3 to be tested with a clearance fit on the outside. The outer diameter of the mounting boss 21 is smaller than the outer diameter of the pulley base 2, and the outer diameter of the mounting boss 21 is the same as the inner diameter of the inner ring in the bearing 3 to be tested. When installed, the inner ring of the bearing 3 to be tested is sleeved on the mounting boss 21, and the bottom of the inner ring of the bearing 3 to be tested is pressed on the pulley base 2 to limit the inner ring of the bearing 3 to be tested. The outer ring of the bearing 3 to be tested does not contact the pulley base 2, otherwise it will be stuck and unable to rotate.
[0036] One side of the above-mentioned bearing fastening and installation module 4 is clamped in the center of the mounting boss 21, and the other side of the bearing fastening and installation module 4 abuts against the side of the inner ring of the bearing 3 to be tested away from the experimental equipment base plate 1. The bearing fastening and installation module 4 includes: a first threaded hole 41, an end cover 42, and a locking screw 44. Among them, the first threaded hole 41 is opened in the center of the pulley base 2, and one side of the first threaded hole 41 extends outward through the mounting boss 21. The end cover 42 abuts against the side of the inner ring of the bearing 3 to be tested away from the experimental equipment base plate 1. A limit clamping platform 43 is provided on the side of the end cover 42 close to the mounting boss 21. A rubber protection sleeve is provided on the outside of the limit clamping platform 43. The rubber protection sleeve has an interference fit with the inner side wall of the inner ring of the bearing 3 to be tested and will not damage the inner ring of the bearing 3 to be tested. The locking screw 44 is arranged in the center of the end cover 42, and one side of the locking screw 44 passes through the rubber protection sleeve and is clamped in the first threaded hole 41 through thread fit. Tightening the locking screw 44 gives the end cover 42 a force towards the experimental equipment base plate 1, so that the middle ring of the bearing 3 to be tested is limited.
[0037] The above-mentioned bearing driven module 5 is sleeved on the outside of the bearing 3 to be tested, and the bearing driven module 5 contacts the outer wall of the outer ring of the bearing 3 to be tested. The bearing driven module 5 includes: a pulley 51 and a clamping drive sleeve 54, wherein the pulley 51 is sleeved on the outside of the bearing 3 to be tested, and a limiting hole 52 is arranged in the middle of the pulley 51. The limiting hole 52 is transitionally matched with the bearing 3 to be tested. The aperture of the limiting hole 52 on the side away from the bottom plate 1 of the experimental equipment is larger than the aperture on the other side. The aperture of the limiting hole 52 on the side away from the bottom plate 1 of the experimental equipment is the same as the outer diameter of the bearing 3 to be tested, so that the bearing 3 to be tested can be stuck in the limiting hole 52. Wedge grooves 53 are opened at equal intervals on the outer wall of the pulley 51. The wedge grooves 53 can allow multiple holes to be sleeved on the pulley 51. The wedge drive belt can ensure that the force point of the belt tension does not change frequently during the process of being driven by the motor, thereby stabilizing the test results. A second threaded hole is provided around the end of the pulley 51 away from the bottom plate 1 of the experimental equipment. The clamping drive sleeve 54 is T-shaped. The bottom of the clamping drive sleeve 54 is against the side of the outer ring of the bearing 3 to be tested away from the bottom plate 1 of the experimental equipment. The top of the clamping drive sleeve 54 is in contact with the side of the pulley 51 away from the bottom plate 1 of the experimental equipment. Connecting bolts 55 are passed around the top of the clamping drive sleeve 54. The bottom of the connecting bolt 55 passes through the clamping drive sleeve 54 and is clamped in the second threaded hole through threaded cooperation. The connection between the outer ring of the bearing 3 to be tested and the pulley 51 is strengthened through the clamping drive sleeve 54.
[0038] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.
Claims
1. A limit fixture for bearing testing, characterized in that: include: An experimental equipment base plate (1), wherein a pulley base (2) is provided at the center of the top of the experimental equipment base plate (1) through bolt connection; A pulley base (2), wherein a mounting boss (21) is arranged on the top of the pulley base (2), and a bearing (3) to be tested is arranged on the outer side of the mounting boss (21) in a clearance fit sleeve; A bearing fastening and mounting module (4), wherein one side of the bearing fastening and mounting module (4) is clamped in the middle of the mounting boss (21), and the other side of the bearing fastening and mounting module (4) is abutted against a side of the inner ring of the bearing to be tested (3) away from the bottom plate (1) of the experimental equipment; A bearing driven module (5), wherein the bearing driven module (5) is sleeved on the outer side of the bearing to be tested (3), and the bearing driven module (5) is in contact with the outer side wall of the outer ring of the bearing to be tested (3).
2. The position limiting device for bearing testing according to claim 1 is characterized in that: The outer diameter of the mounting boss (21) is smaller than the outer diameter of the pulley base (2), and the outer diameter of the mounting boss (21) is the same as the inner diameter of the inner ring of the bearing (3) to be tested.
3. The position limiting device for bearing testing according to claim 2 is characterized in that: The outer ring of the bearing to be tested (3) does not contact the pulley base (2).
4. The position limiting fixture for bearing testing according to claim 3 is characterized in that: The bearing fastening and installation module (4) comprises: A No. 1 threaded hole (41), the No. 1 threaded hole (41) is opened in the middle of the pulley base (2), and one side of the No. 1 threaded hole (41) passes through the mounting boss (21) and extends outward; An end cover (42), the end cover (42) being arranged against a side of the inner ring of the bearing to be tested (3) away from the bottom plate (1) of the experimental device, a limit clamping platform (43) being arranged on a side of the end cover (42) close to the mounting boss (21), a rubber protective sleeve being arranged on the outer side of the limit clamping platform (43), the rubber protective sleeve being in interference fit with the inner side wall of the inner ring of the bearing to be tested (3); A locking screw (44) is inserted in the middle of the end cover (42), and one side of the locking screw (44) passes through the rubber protective sleeve and is fixed in the No. 1 threaded hole (41) through threaded engagement.
5. The position limiting fixture for bearing testing according to claim 4 is characterized in that: The bearing driven module (5) comprises: A pulley (51), the pulley (51) is sleeved on the outside of the bearing to be tested (3), a limiting hole (52) is arranged in the middle of the pulley (51), the limiting hole (52) and the bearing to be tested (3) are in transitional fit, wedge grooves (53) are arranged at equal intervals in the middle of the outer wall of the pulley (51), and second threaded holes are arranged around one end of the pulley (51) away from the bottom plate (1) of the experimental equipment; A clamping drive sleeve (54) is T-shaped, the bottom of the clamping drive sleeve (54) is against the side of the outer ring of the bearing to be tested (3) away from the bottom plate (1) of the experimental equipment, the top of the clamping drive sleeve (54) is in contact with the side of the pulley (51) away from the bottom plate (1) of the experimental equipment, and connecting bolts (55) are passed around the top of the clamping drive sleeve (54), and the bottom of the connecting bolts (55) passes through the clamping drive sleeve (54) and is clamped in the No. 2 threaded hole through threaded engagement.
6. The position limiting device for bearing testing according to claim 5, characterized in that: The aperture of the limiting hole (52) on the side away from the bottom plate (1) of the experimental device is larger than the aperture of the other side, and the aperture of the limiting hole (52) on the side away from the bottom plate (1) of the experimental device is the same as the outer diameter of the bearing (3) to be tested.