Turntable bearing fatigue testing machine
By designing the sleeve and clamping mechanism of the rotary bearing fatigue testing machine, the problem of inconvenient bearing clamping in the existing technology has been solved, realizing efficient clamping and loading of bearings of different specifications and sizes, and improving the testing efficiency and stability.
Patent Information
- Application Number
- CN202422850393.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing bearing fatigue testing machines are inconvenient, time-consuming, and labor-intensive when clamping bearings of different specifications and sizes, which affects testing efficiency.
A rotary bearing fatigue testing machine was designed, which uses a sleeve and clamping mechanism to clamp bearings of different specifications and sizes by tightening bolts, and applies load by hydraulic cylinder to achieve effective clamping and loading of bearings.
It enables efficient clamping and loading of bearings of different specifications and sizes, improves testing efficiency, and ensures the stability and accuracy of bearings in fatigue testing.
Smart Images
Figure CN223637105U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to bearing fatigue test technical field, especially, relate to a turntable bearing fatigue testing machine. BACKGROUND
[0002] Bearing in the long use process, will be subjected to various alternating loads, prone to fatigue damage, and further affect the normal operation of the entire mechanical system. Therefore, the fatigue performance of bearing test and research has extremely important significance.
[0003] When the bearing fatigue testing machine tests the bearing, it needs to be clamped, and the existing manual screwing of multiple bolts is used to limit the bearing. Because the specifications and sizes of bearings are different, the existing bearing fatigue testing machine is inconvenient to clamp, which not only consumes time and effort but also affects the test efficiency. UTILITY MODEL CONTENTS
[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a turntable bearing fatigue testing machine, which can effectively solve the problems of the prior art.
[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:
[0006] The utility model relates to a turntable bearing fatigue testing machine, which comprises a base, a fixed column fixedly connected to the center position of the top of the base and a shell fixedly connected to the bottom end of the base, and further comprises: a motor arranged at the center position of the inner wall of the shell, a rotating shaft rotatably connected to the center position of the base and the fixed column, a bearing body arranged on the outer wall of the upper end of the rotating shaft, a sleeve sleeve arranged on the top of the rotating shaft, a clamping mechanism arranged on the upper end surface of the fixed column, an extrusion sleeve slidably connected to the middle part of the rotating shaft, and a pressing mechanism arranged on one side of the bottom end of the extrusion sleeve.
[0007] Further, the outer wall of the sleeve is fixedly connected with a first fixed rod, the outer side of the first fixed rod is rotatably connected with a connecting rod, the other end of the connecting rod is connected with a second fixed rod, the side wall of the second fixed rod is fixedly connected with an L-shaped plate, and the side wall of the L-shaped plate is fixedly connected with a contact plate.
[0008] Further, the bottom end of the L-shaped plate is provided with a first sliding block, a sliding plate is arranged below the L-shaped plate, the sliding plate is sleeved and fixed on the outer wall of the rotating shaft, a first sliding groove is formed in the inner part of the sliding plate, and the first sliding block slides along the first sliding groove.
[0009] Further, a first bolt is arranged at the center position of the upper end surface of the rotating shaft, penetrates the top of the sleeve, is threadedly connected in the inner part of the rotating shaft, a spring is arranged on the upper end surface of the rotating shaft, the spring is located on the two sides of the first bolt, and the upper end of the spring is fixedly connected with a baffle.
[0010] Further, the clamping mechanism comprises a sliding rod, a second sliding groove, a second sliding block, an extension rod, a second bolt and a stopper, the sliding rod is fixedly connected to the upper end face of the fixed column and is distributed around the bearing body, the second sliding groove is arranged in the side wall of the sliding rod, the second sliding block is slidingly connected to the upper end face of the sliding rod, the extension rod is fixedly connected to one side of the upper end of the sliding rod and has an output end connected to the side wall of the second sliding block, and the second bolt is threadedly connected to the upper end of the second sliding block.
[0011] Further, the pressing mechanism comprises a limiting groove, a lifting plate and a hydraulic cylinder, the limiting groove is arranged in the inner side of the bottom end of the fixed column, the lifting plate is slidingly connected to the inside of the limiting groove and has one side fixedly connected to the outer wall of the lower end of the extrusion sleeve, and the hydraulic cylinder is fixedly connected to the bottom end of the lifting plate and has an output end connected to the pressure sensor.
[0012] The utility model has the following beneficial effects:
[0013] 1. The sleeve is lowered by rotating the first bolt, so that the first sliding block at the lower end of the L-shaped plate slides in the sliding plate, drives the connecting rod connected to the side walls of the first fixed rod and the second fixed rod to move outward, so that the contact plate on the side wall of the L-shaped plate contacts the inner ring of the bearing body, and the fatigue test of bearings of different specifications and sizes is realized.
[0014] 2. The extension rod drives the second sliding block to move to the center to clamp the bearing outer ring, avoids the bearing from falling off, then the second bolt is rotated to make the stopper located at the upper end of the bearing outer ring, so that the stopper limits the bearing outer ring, avoids the bearing from moving upward under the action of the pressing mechanism, starts the hydraulic cylinder, and the lifting plate drives the extrusion sleeve to move in the limiting groove, so that the extrusion sleeve applies a load to the bearing body. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0016] Figure 1 It is a schematic view of the rotary bearing fatigue testing machine of the utility model;
[0017] Figure 2 It is a sectional view of the rotary bearing fatigue testing machine of the utility model;
[0018] Figure 3The utility model discloses a rotary table bearing fatigue testing machine local section view schematic drawing;
[0019] Figure 4 The utility model discloses a holding mechanism plan view schematic drawing;
[0020] Figure 5 The utility model discloses Figure 2 The middle A place local amplification schematic diagram.
[0021] In the drawing, the component list that each sign represents is as follows: 1, base, 2, fixed column, 3, shell, 4, motor, 5, rotating shaft, 6, bearing body, 7, sleeve, 8, first fixed link, 9, connecting rod, 10, second fixed link, 11, L-shaped plate, 12, contact plate, 13, first sliding block, 14, first sliding slot, 15, sliding plate, 16, first bolt, 17, spring, 18, baffle, 19, sliding rod, 20, second sliding slot, 21, second sliding block, 22, telescopic rod, 23, second bolt, 24, stop block, 25, extrusion sleeve, 26, limit groove, 27, lifting plate, 28, hydraulic cylinder. Specific implementation
[0022] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the drawings in the utility model embodiment.
[0023] Please refer to Figures 1-5 The utility model discloses a rotary table bearing fatigue testing machine, including base 1, the fixed connection of the center position of the top of base 1 has fixed column 2 and the fixed connection of the bottom end of base 1 has shell 3, still include: the center position of shell 3 inner wall is provided with motor 4, shell 3 can support the bottom of motor 4, thereby avoiding the deviation and the shaking of motor 4, can also avoid the falling of rotating shaft 5 simultaneously.
[0024] The center position of base 1 and fixed column 2 is rotatably connected with rotating shaft 5, the outer wall of the upper end of rotating shaft 5 is provided with bearing body 6, the top of rotating shaft 5 is provided with sleeve 7, the outer wall of sleeve 7 is fixedly connected with first fixed link 8 in the middle part, the upper end lateral wall and the lateral wall of the lower end of first fixed link 8 are rotatably connected with connecting rod 9, and the upper end of connecting rod 9 is connected with first fixed link 8, the lower end of connecting rod 9 is rotatably connected with the upper end lateral wall and the lateral wall of the lower end of second fixed link 10, the lateral wall of second fixed link 10 is fixedly connected with L-shaped plate 11, first fixed link 8 is convenient for connecting rod 9 to connect sleeve 7, second fixed link 10 is convenient for connecting rod 9 to connect L-shaped plate 11, when sleeve 7 moves down and makes connecting rod 9 drive L-shaped plate 11 to move.
[0025] The side wall of the L-shaped plate 11 is fixedly connected with the contact plate 12, the bottom end of the L-shaped plate 11 is provided with the first sliding block 13, the lower portion of the L-shaped plate 11 is provided with the sliding plate 15, the sliding plate 15 is sleeved on the outer wall of the rotating shaft 5, the inner portion of the sliding plate 15 is provided with the first sliding groove 14, the first sliding block 13 can slide in the first sliding groove 14, the specification size of the first sliding groove 14 is larger than that of the sliding block 13, so that the sliding block 13 can slide in the first sliding groove 14, and the bottom portion of the sliding block 13 is connected with a plate with a specification size larger than that of the first sliding groove 14, so that the L-shaped plate 11 is slidably connected with the sliding plate 15, thereby avoiding the sliding plate 15 from falling off, the sleeve 7 moves downward, so that the first sliding block 13 at the bottom end of the L-shaped plate 11 slides in the sliding plate 15, drives the connecting rod 9 connected with the side wall of the first fixed rod 8 and the second fixed rod 10 to move outward, so that the contact plate 12 of the side wall of the L-shaped plate 11 contacts with the inner ring of the bearing body 6, and then the fatigue test on bearings with different specification sizes is realized.
[0026] The upper end face of the rotating shaft 5 is provided with the first bolt 16, the first bolt 16 penetrates through the top portion of the sleeve 7 and is threadedly connected in the inner portion of the rotating shaft 5, the upper end face of the rotating shaft 5 is provided with the spring 17, the spring 17 is located on the two sides of the first bolt 16, the upper end of the spring 17 is fixedly connected with the baffle plate 18, when the fatigue test on the bearing is completed, the sleeve 7 moves upward by rotating the first bolt 16, so that the contact plate 12 moves away from the inner ring of the bearing body 6.
[0027] The upper end face of the fixed column 2 is provided with a clamping mechanism, the clamping mechanism comprises a sliding rod 19, a second sliding groove 20, a second sliding block 21, an extension rod 22, a second bolt 23 and a stop block 24, the stop block 24 is in an L shape, so as to conveniently clamp the outer ring of the bearing, the sliding rod 19 is fixedly connected with the upper end face of the fixed column 2 and is distributed around the bearing body 6, the second sliding groove 20 is formed in the side wall of the sliding rod 19, the second sliding block 21 is slidably connected with the upper end face of the sliding rod 19, the extension rod 22 is fixedly connected with one side of the upper end of the sliding rod 19 and the output end of the extension rod 22 is connected with the side wall of the second sliding block 21, the second bolt 23 is threadedly connected with the upper end of the second sliding block 21, and the stop block 24 is arranged on the outer wall of the second bolt 23, when the extension rod 22 is started, the second sliding block 21 moves to the center in the second sliding groove 20 in the side wall of the sliding rod 19, so as to clamp the outer ring of the bearing and avoid the bearing from falling off, then the second bolt 23 is rotated to make the stop block 24 located on the upper end of the outer ring of the bearing, and then the second bolt 23 is rotated again to make the stop block 24 limit the outer ring of the bearing, so as to avoid the bearing from moving upward under the action of the loading mechanism and affect the fatigue test on the bearing.
[0028] The middle part of the rotating shaft 5 is slidably connected with an extrusion sleeve 25, the upper end of the extrusion sleeve 25 is a disc, a through hole with a size larger than the slide plate 15 is formed in the disc, so that the slide plate 15 cannot limit the extrusion sleeve 25 and the extrusion sleeve 25 cannot press the bearing body 6, a loading mechanism is arranged on one side of the bottom end of the extrusion sleeve 25, the loading mechanism comprises a limiting groove 26, a lifting plate 27 and a hydraulic cylinder 28, the limiting groove 26 is formed on the inner side of the bottom end of the fixed column 2, the lifting plate 27 is slidably connected in the limiting groove 26, one side of the lifting plate 27 is fixedly connected to the outer wall of the lower end of the extrusion sleeve 25, the hydraulic cylinder 28 is fixedly connected to the bottom end of the lifting plate 27, the output end of the hydraulic cylinder 28 is connected with a pressure sensor, the size of the limiting groove 26 is larger than that of the lifting plate 27, so that the lifting plate 27 can slide in the limiting groove 26, the hydraulic cylinder 28 drives the lifting plate 27 to move, so that the extrusion sleeve 25 moves, thereby the extrusion sleeve 25 applies a load to the bearing body 6.
[0029] Working principle: first, the rotary bearing fatigue testing machine is placed in a suitable position, second, the bearing body 6 is placed on the outer wall of the sleeve 7, the telescopic rod 22 is started to make the second sliding block 21 clamp the outer wall of the bearing body 6, the second bolt 23 is screwed to make the stop block 24 located on the upper end of the bearing outer ring, then the second bolt 23 is screwed to make the stop block 24 limit the bearing outer ring, then the first bolt 16 is screwed to make the sleeve 7 move downwards, so that the first sliding block 13 slides in the slide plate 15, drives the connecting rod 9 to move outward, so that the contact plate 12 of the side wall of the L-shaped plate 11 contacts with the inner ring of the bearing body 6, then the motor 4 is started, the motor 4 drives the rotating shaft 5, finally the hydraulic cylinder 28 is started to make the extrusion sleeve 25 move upwards, the pressure sensor on the output end of the hydraulic cylinder 28 measures the stress of the bearing body 6 under the fatigue limit, so that the fatigue characteristics of the bearing body 6 with different sizes are measured.
[0030] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement of the technical solutions recorded in the foregoing embodiments, all belong to the protection scope of the present application.
Claims
1. A rotary table bearing fatigue testing machine, comprising a base (1), a fixed column (2) is fixedly connected to the center position of the top of the base (1), and a shell (3) is fixedly connected to the bottom end of the base (1), characterized in that, Also includes: The inner wall of the shell (3) is provided with a motor (4) in the center position, the base (1) and the fixed column (2) are rotatably connected with the rotating shaft (5) in the center position, the outer wall of the upper end of the rotating shaft (5) is provided with the bearing body (6), the top of the rotating shaft (5) is sleeved with the sleeve (7), the upper end surface of the fixed column (2) is provided with a clamping mechanism, the middle part of the rotating shaft (5) is slidably connected with the extrusion sleeve (25), one side of the bottom end of the extrusion sleeve (25) is provided with a pressing mechanism.
2. A rotary bearing fatigue testing machine according to claim 1, wherein The outer wall of the sleeve (7) is fixedly connected with the first fixed rod (8) in the middle part, the outer side of the first fixed rod (8) is rotatably connected with the connecting rod (9) in a symmetrical manner, the other end of the connecting rod (9) is connected with the second fixed rod (10), the side wall of the second fixed rod (10) is fixedly connected with the L-shaped plate (11), and the side wall of the L-shaped plate (11) is fixedly connected with the contact plate (12).
3. A rotary bearing fatigue testing machine according to claim 2, wherein The bottom end of the L-shaped plate (11) is provided with a first sliding block (13), and the lower side of the L-shaped plate (11) is provided with a sliding plate (15), and the sliding plate (15) is sleeved and fixed on the outer wall of the rotating shaft (5), and the inner part of the sliding plate (15) is provided with a first sliding groove (14), and the first sliding block (13) slides along the first sliding groove (14).
4. The rotary bearing fatigue testing machine of claim 1, wherein: The center position of the upper end surface of the rotating shaft (5) is provided with a first bolt (16), and the first bolt (16) penetrates the top of the sleeve (7) and is threadedly connected in the inner part of the rotating shaft (5), the upper end surface of the rotating shaft (5) is provided with a spring (17), and the spring (17) is located on both sides of the first bolt (16), and the upper end of the spring (17) is fixedly connected with the baffle (18).
5. The rotary bearing fatigue testing machine of claim 1, wherein, The clamping mechanism comprises a sliding rod (19), a second sliding groove (20), a second sliding block (21), a telescopic rod (22), a second bolt (23), a stop block (24), the sliding rod (19) is fixedly connected to the upper end surface of the fixed column (2), and the sliding rod (19) is distributed around the bearing body (6), the second sliding groove (20) is opened in the side wall of the sliding rod (19), the second sliding block (21) is slidably connected to the upper end surface of the sliding rod (19), the telescopic rod (22) is fixedly connected to one side of the upper end of the sliding rod (19), and the output end of the telescopic rod (22) is connected to the side wall of the second sliding block (21), the second bolt (23) is threadedly connected to the upper end of the second sliding block (21), and the stop block (24) is arranged on the outer wall of the second bolt (23).
6. A rotary bearing fatigue testing machine according to claim 1, wherein The pressing mechanism comprises a limiting groove (26), a lifting plate (27) and a hydraulic cylinder (28), the limiting groove (26) is opened in the inner side of the bottom end of the fixed column (2), the lifting plate (27) is slidably connected in the inner part of the limiting groove (26), one side of the lifting plate (27) is fixedly connected to the outer wall of the bottom end of the extrusion sleeve (25), and the hydraulic cylinder (28) is fixedly connected to the bottom end of the lifting plate (27). The output end of the hydraulic cylinder (28) is connected with the pressure sensor.