Durability test bed for heavy-duty bearing
The heavy-duty bearing durability test rig simulates load conditions to assess wear and lifespan, addressing the need for accurate evaluation of bearing performance.
Patent Information
- Application Number
- CN202422201712.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The prior art is difficult to effectively simulate the working state and wear of the rotary table bearing under heavy load conditions, affecting its service life assessment.
A heavy-load bearing durability test bench is designed to drive the bearing rotation through the motor and reducer, combine the pressurized cylinder to simulate the load, and is equipped with a temperature-controlled box to simulate different temperature conditions to observe the bearing wear and life.
Effective simulation test of bearings under heavy load conditions is achieved, and its wear and life can be accurately evaluated, improving the accuracy of evaluation.
Smart Images
Figure CN223107234U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing testing, and particularly refers to a durability test bench for heavy-duty bearings. Background Art
[0002] Slewing bearings are a type of large-thrust heavy-duty bearings. As Figure 6 shown, its inner ring is generally fixedly supported, and the outer ring rotates through internal balls. Since such bearings will have a large load during installation, it is necessary to simulate the working conditions of the bearings under heavy-duty conditions after manufacturing to understand the internal wear and service life of the bearings. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a durability test bench for heavy-duty bearings in view of the above-mentioned deficiencies of the prior art.
[0004] To solve the above technical problems, the technical solution adopted by the utility model is:
[0005] A durability test bench for heavy-duty bearings includes a frame. A motor and a reducer are installed below the frame, and the motor and the reducer are connected to each other. A support frame is connected to the surface of the frame. A bearing mounting seat is arranged above the support frame. A bearing is mounted on the bearing mounting seat. The output end of the reducer is connected to a drive shaft. The drive shaft passes through the support frame and is connected to the bearing above. A driving gear is mounted on the drive shaft. A test bearing mounting seat is arranged above the support frame. The test bearing mounting seats are distributed around the drive shaft. A test bearing is connected to the test bearing mounting seat. A driven gear is connected to the outer ring of the test bearing, and the driven gear meshes with the driving gear. A pressurizing cylinder is installed on the frame. The piston end of the pressurizing cylinder passes through the support frame and is connected to a pressurizing connecting rod. A pressurizing block is connected to the pressurizing connecting rod, and the pressurizing block presses on the outer ring of the test bearing.
[0006] Further, the bearing mounting seat is connected to the support frame through a support column.
[0007] Further, the drive shaft includes a first short shaft and a second short shaft. One end of the first short shaft is connected to the output end of the reducer through a coupling, and the other end is connected to one end of the second short shaft through a coupling. The other end of the second short shaft is connected to the bearing.
[0008] Further, a support sleeve is arranged on the frame, and a transition bearing is connected inside the support sleeve. The first short shaft passes through the transition bearing.
[0009] Further, the bearing adopts a slewing bearing.
[0010] Further, a waist-shaped groove is machined on the pressurizing connecting rod.
[0011] Further, a temperature control box is installed above the support frame, and the temperature control box covers the test bearing.
[0012] Compared with the prior art, in a heavy-duty bearing durability test bench of the present utility model, a pressurizing cylinder controls a pressurizing block to press against the outer ring of the test bearing, and the test bearing is driven to rotate by a driving shaft to simulate the working state of the bearing under load conditions, so as to facilitate observing the internal wear and service life of the test bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic structural diagram of the present utility model;
[0014] Figure 2 is a schematic structural diagram of the connection of the driving shaft of the present utility model;
[0015] Figure 3 is a schematic structural diagram of the installation of the test bearing of the present utility model;
[0016] Figure 4 is a top view of the present utility model;
[0017] Figure 5 is a schematic structural diagram of the installation of the temperature control box of the present utility model;
[0018] Figure 6 is a schematic structural diagram of the heavy-duty bearing of the present utility model;
[0019] Among them, 1, frame; 2, motor; 3, reducer; 4, support frame; 5, bearing mounting seat; 6, bearing; 7, driving shaft; 8, driving gear; 9, coupling; 10, support sleeve; 11, test bearing mounting seat; 12, test bearing; 13, driven gear; 14, pressurizing cylinder; 15, pressurizing connecting rod; 16, pressurizing block; 17, waist-shaped groove; 18, temperature control box; 711, short shaft 1; 712, short shaft 2. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below.
[0021] As Figures 1 to 5 shown, a heavy-duty bearing durability test bench includes a frame 1, a motor 2 and a reducer 3 are installed below the frame 1, the motor 2 and the reducer 3 are connected to each other, the surface of the frame 1 is connected with a support frame 4, a bearing mounting seat 5 is arranged above the support frame 4, the bearing mounting seat 5 is connected to the support frame 4 through a support column, a bearing 6 is installed on the bearing mounting seat 5, the output end of the reducer 3 is connected with a driving shaft 7, the upper end of the driving shaft 7 passes through the support frame 4 and is connected with the bearing 6 above, and a driving gear 8 is installed on the driving shaft 7.
[0022] In this embodiment, in order to reduce the processing difficulty, the drive shaft 7 is formed by connecting a first short shaft 711 and a second short shaft 712. One end of the first short shaft 711 is connected to the output end of the reducer 3 through a coupling 9, and the other end is connected to one end of the second short shaft 712 through a coupling 9. The other end of the second short shaft 712 is connected to a bearing 6. To ensure the stability of the drive shaft 7, a support sleeve 10 is provided on the frame 1, and a transition bearing is connected inside the support sleeve 10, and the first short shaft 711 passes through the transition bearing.
[0023] In this embodiment, the bearing 6 is a slewing bearing. An installation groove is machined on the bearing mount, the outer ring of the bearing 6 is fixed around the installation groove, and a flange is machined on the upper end of the second short shaft 712 and clamped on the inner ring of the bearing. Driven by the motor 2 and the reducer 3, the entire drive shaft 7 drives the outer active gear 8 to rotate.
[0024] A test bearing mount 11 is provided above the support frame 4. The test bearing mounts 11 are distributed around the drive shaft 7. In this embodiment, three test bearing mounts 11 are distributed around the drive shaft 7. A test bearing 12 is connected to the test bearing mount 11. The inner ring of the test bearing 12 is fixed to the test bearing mount 11. A driven gear 13 is connected to the outer ring of the test bearing 12. The driven gear 13 is connected in cooperation with the outer ring of the test bearing 12. The driven gear 13 meshes with the active gear 8. The frame 1 is equipped with a pressurizing cylinder 14. The piston end of the pressurizing cylinder 14 passes through the support frame 4 and is connected to a pressurizing connecting rod 15. A pressurizing block 16 is connected to the pressurizing connecting rod 15. The pressurizing block 16 presses on the outer ring of the test bearing 12. Under the action of the pressurizing cylinder, the load of the test bearing is simulated.
[0025] A waist-shaped groove 17 is machined on the pressurizing connecting rod 15. The waist-shaped groove 17 is used to adjust the position of the pressurizing block 16 so as to facilitate the pressurizing block 16 to press on the outer ring of the test bearing 12.
[0026] A temperature control box 18 is installed above the support frame 4. The temperature control box 18 covers the test bearing 12. A heating pipe with a controllable temperature is provided inside the temperature control box 18 for simulating the durability test of a heavy-duty bearing under different temperature conditions.
[0027] The present utility model is not limited to the described embodiments. Those skilled in the art can still make some modifications or changes without departing from the spirit of the present utility model, that is, within the public scope. Therefore, the scope of the right protection of the present utility model is subject to the scope defined by the claims.
Claims
1. An overload bearing endurance test bench, characterized in that: It includes a frame, with a motor and a reducer installed below the frame. The motor and the reducer are connected to each other. A support frame is connected to the surface of the frame. Above the support frame, there is a bearing mounting seat, and a bearing is installed on the bearing mounting seat. The output end of the reducer is connected to a drive shaft, and the drive shaft passes through the support frame and is connected to the bearing above. A driving gear is installed on the drive shaft. Above the support frame, there is a test bearing mounting seat, which is distributed around the drive shaft. A test bearing is connected to the test bearing mounting seat. A driven gear is connected to the outer ring of the test bearing, and the driven gear meshes with the driving gear. A pressurizing cylinder is installed on the frame, and the piston end of the pressurizing cylinder passes through the support frame and is connected to a pressurizing connecting rod. A pressurizing block is connected to the pressurizing connecting rod, and the pressurizing block presses on the outer ring of the test bearing.
2. The heavy-duty bearing endurance test bench according to claim 1, wherein: The bearing mounting seat is connected to the support frame through a support column.
3. The heavy-duty bearing endurance test bench according to claim 1, characterized in that: The drive shaft includes a short shaft one and a short shaft two. One end of the short shaft one is connected to the output end of the reducer through a coupling, and the other end is connected to one end of the short shaft two through a coupling. The other end of the short shaft two is connected to the bearing.
4. The overload bearing endurance test bench according to claim 3, characterized in that: A support sleeve is provided on the frame, and a transition bearing is connected inside the support sleeve. The short shaft one passes through the transition bearing.
5. The overload bearing endurance test bench according to claim 1, characterized in that: The bearing adopts a slewing bearing.
6. The overload bearing durability test bench according to claim 1, characterized in that: A waist-shaped groove is machined on the pressurizing connecting rod.
7. The overload bearing durability test bench according to claim 1, characterized in that: A temperature control box is installed above the support frame, and the temperature control box covers the test bearing.