Lubricating grease performance and bearing life tester
By designing grease performance and bearing life testers, using electric motors, load buffer components and heaters to simulate the working environment, the problem of detecting grease performance and bearing life in the existing technology is solved, and the normal operation and structure of the equipment is realized. Compactness.
Patent Information
- Application Number
- CN202323603317.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2033-12-28
AI Technical Summary
The prior art is difficult to effectively detect the performance of grease and bearing life, which affects the normal operation of mechanical equipment.
A grease performance and bearing life tester was designed to drive the bearing rotation through an electric motor, combine radial and axial load buffer components to simulate the actual working environment, and monitor the temperature through a heater and a thermometer, and detect the load using a pressure sensor. , the console displays parameters, evaluates the performance of the grease and the life of the bearing.
It realizes simple and convenient testing of grease performance and bearing life, ensures normal operation of the equipment, and is compact and easy to disassemble and assemble, and is suitable for testing of different greases.
Smart Images
Figure CN222364759U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing testing, in particular to a grease performance and bearing life tester. Background Art
[0002] Greases are widely used in machinery and automotive parts to protect components and reduce friction and wear. Interactive properties such as adhesion have become key factors affecting the performance of greases. Adhesion is related to the microstructural aspects of the grease, such as the thickener network, wetting agents and additives.
[0003] Grease is one of the important lubricants for protecting equipment, and its shear resistance is crucial to the protective effect of the equipment. Needle penetration, temperature drop value and tension loss value are important indicators for testing the shear resistance of grease. When using grease, it is necessary to select the appropriate grease according to the equipment use requirements and working conditions, and perform appropriate tests after use to ensure the normal operation of the equipment.
[0004] Bearings are a commonly used and important component in mechanical equipment. Their main function is to support mechanical rotating bodies. The performance of grease directly affects the service life of bearings, and the life of bearings affects whether the equipment can operate normally. Therefore, the detection of grease performance and bearing life is an extremely important task. For this purpose, a grease performance and bearing life tester is designed, which can perform testing work simply and conveniently. Utility Model Content
[0005] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.
[0006] A grease performance and bearing life tester, comprising a test bench, an end surface of which is provided with a test box, an electric motor and a control console, the test box comprising a box body and an upper cover connected thereto, a mounting plate built in the box body, a placement cavity for placing a bearing being opened at one end of the mounting plate, a rotating shaft extending into the placement cavity being connected to the output end of the electric motor through a coupling, a radial load buffer component corresponding to the placement cavity being provided at one side of the mounting plate, and an axial load buffer component being detachably connected to one end of the mounting plate corresponding to the placement cavity;
[0007] A first lock is provided between the box body and the upper cover, the box body has a fixed side plate and a movable side plate hinged to the fixed side plate, a second lock is provided between the fixed side plate and the movable side plate, wherein the movable side plate is provided on a side corresponding to the axial load buffer assembly;
[0008] A heater is arranged in the box body on one side of the mounting plate, a temperature sensor is arranged in the mounting plate, and corresponding pressure sensors are arranged on the radial load buffer assembly and the axial load buffer assembly respectively, and the heater, the temperature sensor and the pressure sensor are all electrically connected to the control console.
[0009] As a further solution of the utility model: the axial load buffer assembly includes a connecting shaft, a buffer spring sleeved on the connecting shaft, and a first limit end and a second limit end connected to both ends of the connecting shaft and used to limit the buffer spring, the first limit end extends into the placement cavity and is threadedly connected to the first rotating shaft, the test box is provided with a rotating shaft seat at the position of the second limit end, and the second limit end is rotatably connected to the rotating shaft seat.
[0010] As a further solution of the utility model: a thread groove is arranged on the first limiting end, and an external thread structure corresponding to the thread groove is arranged on the end of the rotating shaft.
[0011] As a further solution of the utility model: a heat dissipation gear is threadedly connected to the second limiting end, and a heat dissipation hole corresponding to the heat dissipation gear is opened on the movable side plate.
[0012] As a further solution of the utility model: the radial load buffer assembly includes a mounting seat and a buffer mounted on the mounting seat, and an abutment block corresponding to the placement cavity is arranged on one end of the buffer away from the mounting seat.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] 1) Drive the electric motor to drive the bearing to rotate, load the radial load on the bearing through the radial load buffer assembly, load the axial load on the bearing through the axial load buffer assembly, increase the temperature in the test box through the heater to simulate the actual working environment, monitor the bearing temperature through the temperature sensor, detect the current radial load and axial load of the bearing through the pressure sensor, display the current speed, temperature, load and other parameters of the bearing through the console, and evaluate the service life of the bearing and the lubricating performance of the grease by adding different and equal amounts of grease and checking whether the bearing is damaged or the degree of damage after the test;
[0015] 2) The test box is divided into a box body and an upper cover, the box body has a fixed side panel and a movable side panel, and a first lock corresponding to the box body and the upper cover, and a second lock corresponding to the fixed side panel and the movable side panel, especially combined with the detachable connection method of the axial load buffer assembly. In practical applications, the axial load buffer assembly is used to achieve abutment against the bearing, preventing the bearing from being separated from the placement cavity during high-speed rotation, thereby ensuring the operation of the bearing. The axial load buffer assembly can be disassembled, which is convenient for replacing the bearing and cleaning the residual grease in the placement cavity when testing different greases. The upper cover is opened by the first lock, and the movable side panel is opened by the second lock, which facilitates the disassembly and assembly of the axial load buffer assembly and the bearing, thereby ensuring the compactness and practicality of the overall structure.
[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0018] Figure 1 It is a structural schematic diagram of the utility model;
[0019] Figure 2 It is a structural schematic diagram of the box body in the utility model;
[0020] Figure 3 It is a schematic diagram of the characteristic structure of the mounting plate in the utility model;
[0021] Figure 4 It is a structural schematic diagram of the test box of the utility model.
[0022] The reference numerals and names in the figures are as follows:
[0023] 1. Test bench; 2. Test box; 3. Electric motor; 4. Control console; 5. Box body; 6. Upper cover; 7. Mounting plate; 8. Placement cavity; 9. Coupling; 10. Rotating shaft; 11. Radial load buffer assembly; 12. Axial load buffer assembly; 13. First lock; 14. Fixed side plate; 15. Movable side plate; 16. Second lock; 17. Heater; 18. Temperature sensor; 19. Connecting shaft; 20. Buffer spring; 21. First limit end; 22. Second limit end; 23. Rotating shaft seat; 24. Thread groove; 25. External thread structure; 26. Heat dissipation gear; 27. Mounting seat; 28. Buffer; 29. Abutment block. DETAILED DESCRIPTION
[0024] 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.
[0025] See also Figure 1-4 In an embodiment of the utility model, a grease performance and bearing life tester includes a test bench 1, on the end surface of which a test box 2, an electric motor 3 and a control console 4 are arranged, the test box 2 includes a box body 5 and a connected upper cover 6, the box body 5 has a mounting plate 7 built therein, one end of the mounting plate 7 is provided with a placement cavity 8 for placing a bearing, the output end of the electric motor 3 is connected to a rotating shaft 10 extending into the placement cavity 8 through a coupling 9, one side of the mounting plate 7 is provided with a radial load buffer component 11 corresponding to the placement cavity 8, and one end of the mounting plate 7 corresponding to the placement cavity 8 is detachably connected with an axial load buffer component 12;
[0026] A first lock catch 13 is provided between the box body 5 and the upper cover 6, the box body 5 has a fixed side plate 14 and a movable side plate 15 hinged on the fixed side plate 14, a second lock catch 16 is provided between the fixed side plate 14 and the movable side plate 15, wherein the movable side plate 15 is provided on one side corresponding to the axial load buffer assembly 12;
[0027] A heater 17 is provided in the box body 5 on one side of the mounting plate 7, a temperature sensor 18 is provided in the mounting plate 7, and corresponding pressure sensors are provided on the radial load buffer assembly 11 and the axial load buffer assembly 12 respectively, and the heater 17, the temperature sensor 18 and the pressure sensor are all electrically connected to the console 4.
[0028] The technical solution of the utility model includes a test bench 1, on the end surface of which a test box 2, an electric motor 3 and a control console 4 are arranged. The bearing to be tested is placed through the test box 2, the bearing is driven to rotate through the electric motor 3, and the parameters of the bearing during operation are displayed through the control console 4. Furthermore, a mounting plate 7 is built into the test box 2, and the mounting plate 7 has a placement cavity 8 for placing the bearing, a radial load buffer component 11 is arranged on one side of the mounting plate 7, and an axial load buffer component 12 is arranged at one end of the mounting plate 7. During the test, a bearing coated with grease is placed in the placement cavity 8. , the output end of the electric motor 3 is connected to a rotating shaft 10 extending into the placement cavity 8 through a coupling 9, so that the bearing to be tested can be sleeved on the rotating shaft 10 and fixed, the electric motor is driven to drive the bearing to rotate, the radial load buffer component 11 is used to load the radial load on the bearing, and the axial load buffer component 12 is used to load the axial load on the bearing, and the temperature in the test box 2 is increased by the heater 17 to simulate the actual working environment, the bearing temperature is monitored by the temperature sensor 18, the current radial load and axial load of the bearing are detected by the pressure sensor, and the current speed, temperature, load and other parameters of the bearing are displayed on the console 4;
[0029] Further, if the placement cavity 8 is used to place a bearing of model 6204, inner diameter 20 mm, outer diameter 47 mm, thickness 14 mm, axial load 5 kg and radial load 10 kg, by adding different and equal amounts of grease, and by checking whether the bearing is damaged or the degree of damage after the test, the service life of the bearing and the lubricating performance of the grease can be evaluated;
[0030] Furthermore, by dividing the test box 2 into a box body 5 and an upper cover 6, the box body 5 has a fixed side panel 14 and a movable side panel 15, and a first lock buckle 13 corresponding to the box body 5 and the upper cover 6, and a second lock buckle 16 corresponding to the fixed side panel 14 and the movable side panel 15, especially combined with the detachable connection mode of the axial load buffer assembly 12, in actual application, the axial load buffer assembly 12 is used to achieve abutment against the bearing, so as to prevent the bearing from being separated from the placement cavity 8 during high-speed rotation, thereby ensuring the operation of the bearing, and the detachable mode of the axial load buffer assembly 12 is convenient for replacing the bearing and cleaning the residual grease in the placement cavity 8 when testing different greases. The upper cover 6 is opened by the first lock buckle 13, and the movable side panel 15 is opened by the second lock buckle 16, so as to facilitate the disassembly and assembly of the axial load buffer assembly 12 and the bearing, thereby ensuring the compactness and practicality of the overall structure.
[0031] In an embodiment of the utility model, the axial load buffer assembly 12 includes a connecting shaft 19, a buffer spring 20 sleeved on the connecting shaft 19, and a first limit end 21 and a second limit end 22 connected to both ends of the connecting shaft 19 and used to limit the buffer spring 20, the first limit end 21 extends into the placement cavity 8 and is threadedly connected to the first rotating shaft 10, the test box 2 is provided with a rotating shaft seat 23 at the position of the second limit end 22, and the second limit end 22 is rotatably connected to the rotating shaft seat 23; a thread groove 24 is provided on the first limit end 21, and an external thread structure 25 corresponding to the thread groove 24 is provided at the end of the rotating shaft 10.
[0032] The buffer is loaded through the buffer spring 20 and has a good shock absorbing effect. At the same time, the elastic loading force on the bearing in the axial direction is realized through the first limit end 21 to ensure reliable axial loading. The rotational cooperation between the second limit end 22 and the shaft seat 23 is beneficial to the stability of the axial load buffer assembly 12 during rotation, and the threaded connection is beneficial to the disassembly and assembly of the axial load buffer assembly 12, thereby facilitating the replacement of the bearing and the cleaning of residual grease in the placement cavity 8 when testing different greases.
[0033] In the embodiment of the utility model, a heat dissipation gear 26 is threadedly connected to the second limiting end 22 , and a heat dissipation hole corresponding to the heat dissipation gear 26 is opened on the movable side plate 15 .
[0034] Since the temperature of the bearing will rise rapidly when it rotates at high speed, abnormally high temperature may occur, resulting in bearing damage. In order to avoid overheating of the bearing and the accuracy of the test, the heat dissipation gear 26 is provided, and the multiple heat dissipation teeth arranged around the circumference thereof can rotate along with the rotation of the axial load buffer assembly 12, and discharge the heat in time through the heat dissipation holes. The design is reasonable and ingenious, while also ensuring the overall compactness.
[0035] In the embodiment of the utility model, the radial load buffer assembly 11 includes a mounting seat 27 and a buffer 28 mounted on the mounting seat 27 , and an abutment block 29 corresponding to the placement cavity 8 is disposed on one end of the buffer 28 away from the mounting seat 27 .
[0036] The buffer 28 is used for loading and buffering, and has a good shock absorbing effect. At the same time, the abutment block 29 is used to realize the elastic loading force on the bearing in the radial direction, so as to ensure the reliability of radial loading.
[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.
Claims
1. A grease performance and bearing life tester, characterized in that: A test bench is included, and a test box, an electric motor and a control console are arranged on the end surface of the test bench. The test box includes a box body and a connected upper cover, and a mounting plate is built in the box body. A placement cavity for placing a bearing is opened at one end of the mounting plate, and a rotating shaft extending into the placement cavity is connected to the output end of the electric motor through a coupling. A radial load buffer component corresponding to the placement cavity is arranged on one side of the mounting plate, and an axial load buffer component is detachably connected to one end of the mounting plate corresponding to the placement cavity; A first lock is provided between the box body and the upper cover, the box body has a fixed side plate and a movable side plate hinged to the fixed side plate, a second lock is provided between the fixed side plate and the movable side plate, wherein the movable side plate is provided on a side corresponding to the axial load buffer assembly; A heater is arranged in the box body on one side of the mounting plate, a temperature sensor is arranged in the mounting plate, and corresponding pressure sensors are arranged on the radial load buffer assembly and the axial load buffer assembly respectively, and the heater, the temperature sensor and the pressure sensor are all electrically connected to the control console.
2. A grease performance and bearing life tester according to claim 1, characterized in that: The axial load buffer assembly includes a connecting shaft, a buffer spring sleeved on the connecting shaft, and a first limit end and a second limit end connected to both ends of the connecting shaft and used to limit the buffer spring, the first limit end extends into the placement cavity and is threadedly connected to the first rotating shaft, the test box is provided with a rotating shaft seat at the position of the second limit end, and the second limit end is rotatably connected to the rotating shaft seat.
3. A grease performance and bearing life tester according to claim 2, characterized in that: The first limiting end is provided with a thread groove, and the end of the rotating shaft is provided with an external thread structure corresponding to the thread groove.
4. A grease performance and bearing life tester according to claim 2, characterized in that: A heat dissipation gear is threadedly connected to the second limiting end, and a heat dissipation hole corresponding to the heat dissipation gear is opened on the movable side plate.
5. A grease performance and bearing life tester according to claim 1, characterized in that: The radial load buffer assembly includes a mounting seat and a buffer mounted on the mounting seat. An abutment block corresponding to the placement cavity is arranged on one end of the buffer away from the mounting seat.