CN115468768A - Slewing bearing test bed - Google Patents
Slewing bearing test bed Download PDFInfo
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- CN115468768A CN115468768A CN202211241293.3A CN202211241293A CN115468768A CN 115468768 A CN115468768 A CN 115468768A CN 202211241293 A CN202211241293 A CN 202211241293A CN 115468768 A CN115468768 A CN 115468768A
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- plate
- fixedly connected
- slewing bearing
- disc
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a slewing bearing test bed, which relates to the technical field of slewing bearing detection and comprises a workbench and a disc rotatably connected to the top of the workbench, wherein a fixing mechanism for fixing a slewing bearing body is arranged on the disc, the fixing mechanism comprises an arc-shaped plate slidably connected to the top of the disc, and one side of the arc-shaped plate is slidably connected with a pressing plate in the vertical direction; a cavity is arranged in the disc, four threaded rods are rotatably connected in the cavity, the ends, close to each other, of the four threaded rods are fixedly connected with bevel gears, and two adjacent bevel gears are meshed with each other; one end of one of the threaded rods is fixedly connected with a first rod, and the first rod penetrates through and is rotatably connected to the outer side wall of the disc; the fixing mechanism is arranged, the slewing bearing is fixed once through the arc-shaped plate, the slewing bearing is fixed again through the pressing plate, and the slewing bearings with different sizes in a certain range can be conveniently installed.
Description
Technical Field
The invention relates to the technical field of detection of slewing bearings, in particular to a slewing bearing test bed.
Background
The slewing bearing is a large bearing capable of bearing comprehensive load, can simultaneously bear larger axial load, radial load and overturning moment when in work, and is widely applied to engineering machinery; in the production process of the slewing bearing, the performance of the slewing bearing needs to be detected, and a corresponding test bed is also used for detecting the performance of the slewing bearing in the prior art.
A patent as application number CN202021980917X discloses a slewing bearing test bench, including horizontal flexible hydro-cylinder, workstation and base, first hydraulic drive ware is installed to one side on base top, and first hydraulic drive ware's output rotates through the pivot and is connected with first gear, the landing leg has all been welded to four corners on base top, and the top welding of landing leg has the workstation, the inside of workstation is rotated and is connected with the dwang, and the bottom of dwang extends to the below of workstation, the outer wall cover of workstation below dwang is equipped with the second gear, and the top of dwang extends to the top of workstation, the top of dwang is provided with the supporting inner circle. The thrust is exerted through a plurality of telescopic oil cylinders, so that real stress is simulated, the inner ring and the outer ring of the support are detected, meanwhile, the speed and the temperature change in the process can be detected, enough data with high authenticity can be obtained, and the advantage of real detection is achieved.
However, the above test stand has the following disadvantages when in use: when the slewing bearing is detected, the slewing bearing is required to be installed at the top of the rotary table through the matching of the positioning rod and the positioning hole, the positioning rod is fixed in position, only the slewing bearing with one size can be fixed, when the slewing bearings with different sizes are fixed, the corresponding rotary table and/or other fasteners are required to be replaced, and the mode is complicated and time-consuming.
Disclosure of Invention
The invention aims to provide a slewing bearing test bed.
The technical problem solved by the invention is as follows: when the existing test bed detects the slewing bearing, the slewing bearing is required to be installed at the top of the rotary table through the matching of the positioning rod and the positioning hole, the positioning rod is fixed, only the slewing bearing with one size can be fixed, when the slewing bearings with different sizes are fixed, the corresponding rotary table and/or other fasteners are required to be replaced, and the mode is complicated and time-consuming.
The invention can be realized by the following technical scheme: the utility model provides a slewing bearing test bench, includes the workstation and rotates the disc of connecting at the workstation top, is provided with the fixed establishment who is used for fixed slewing bearing body on the disc, and fixed establishment includes sliding connection at the arc at the disc top, and one side of arc is at vertical direction sliding connection clamp plate.
The invention has further technical improvements that: a cavity is formed in the disc, four threaded rods are rotatably connected in the cavity, the ends, close to each other, of the four threaded rods are fixedly connected with bevel gears, and the two adjacent bevel gears are meshed with each other; one end of one threaded rod is fixedly connected with a first rod, and the first rod penetrates through and is rotatably connected to the outer side wall of the disc; strip-shaped plates are sleeved on the four threaded rods, a sliding groove is formed in the top of the disc, and the sliding groove is communicated with the cavity; the top of the strip-shaped plate penetrates through the sliding chute, and the strip-shaped plate is fixedly connected with the arc-shaped plate.
The invention has the further technical improvements that: a groove is formed in one side, far away from the strip-shaped plate, of each arc-shaped plate, and the pressing plate is connected in the groove in a sliding mode; the top of the arc-shaped plate is rotatably connected with a bolt.
The invention has further technical improvements that: the rubber layer is fixedly connected to one side, far away from the strip-shaped plate, of the arc-shaped plate, and the rubber layer is fixedly connected to the bottom of the pressing plate.
The invention has further technical improvements that: a circular ring is arranged at one end of the first rod, which is positioned outside the circular disc, and the circular ring is connected with the first rod through a guide plate; one side of the guide plate is fixedly connected to the surface of the first rod, and the other side of the guide plate is connected to the inner wall of the circular ring in a sliding manner; one side of the circular ring close to the disc is fixedly connected with a first magnet sheet; the disc is fixedly connected with a second magnet piece at the corresponding position of the circular ring.
The invention has further technical improvements that: two hydraulic cylinders are symmetrically arranged on the two sides of the disc at the top of the workbench, and an output shaft of the hydraulic cylinder is fixedly connected with a push plate.
The invention has further technical improvements that: the top of the workbench is fixedly connected with a supporting plate, the top of the supporting plate penetrates through and is connected with a guide rod in a sliding manner, the top end of the guide rod is fixedly connected with an annular plate, and the bottom end of the guide rod is fixedly connected with a circular plate; a spring is fixedly connected between the annular plate and the supporting plate, and the circular plate is driven by a second hydraulic cylinder; the bottom of the circular plate is connected with a plurality of rectangular blocks in a sliding mode, and the bottom of each rectangular block is fixedly connected with a second push plate.
The invention has further technical improvements that: the top of the supporting plate is fixedly connected with a display screen, and the annular plate is fixedly connected with a cleaning brush at one side close to the display screen.
Compared with the prior art, the invention has the following beneficial effects:
1. the fixing mechanism is arranged, the first rod drives the threaded rod to rotate, the four threaded rods drive the four arc-shaped plates to move towards the direction close to the inner cavity of the slewing bearing through the strip-shaped plates under the action of the four bevel gears, the slewing bearing is further fixed, then the pressing plate is pushed downwards to be tightly attached to the top of the slewing bearing, the pressing plate is locked through the bolts, the slewing bearing is further fixed, and the slewing bearings with different sizes in a certain range are conveniently installed.
2. The first magnet piece and the second magnet piece are arranged, and when the rotation angle of the first rod meets the requirement, the first magnet piece and the second magnet piece are adsorbed together to fix the first rod, so that the first rod is prevented from loosening along with the rotation of the disc and the fixing effect of the first rod on the slewing bearing body is prevented from being influenced.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a connection of the present invention in partial structure;
FIG. 3 is a schematic structural view of the connection between the first rod and the ring of the present invention;
FIG. 4 is a partial schematic view of the connection of four threaded rods according to the present invention;
fig. 5 is a partial enlarged view of the invention at a in fig. 1.
In the figure: 1. a work table; 2. a disc; 3. a slewing bearing body; 4. a threaded rod; 5. a bevel gear; 6. a first rod; 7. a strip plate; 8. an arc-shaped plate; 9. pressing a plate; 10. a bolt; 11. a rubber layer; 12. a circular ring; 13. a guide plate; 14. a first magnet piece; 15. a second magnet piece; 16. a first board; 17. a first push plate; 18. a support plate; 19. a guide bar; 20. an annular plate; 21. a spring; 22. a circular plate; 23. a rectangular block; 24. a second push plate; 25. a display screen; 26. a cleaning brush; 27. and (4) collecting the tank.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, characteristics and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1-5, a slewing bearing test bed comprises a workbench 1, wherein a disc 2 is rotatably connected to the top of the workbench 1, the disc 2 is driven by a motor, and an output shaft of the motor is further connected with a torque meter; the top of the disc 2 is provided with a slewing bearing body 3 through a fixing mechanism; a cavity is arranged in the disc 2; the fixing mechanism comprises four threaded rods 4 with equal size, the four threaded rods 4 are arranged in a cross shape on the whole, bevel gears 5 are fixedly connected to the ends, close to each other, of the four threaded rods 4, the four bevel gears 5 are meshed with each other, a first rod 6 is fixedly connected to one end of one threaded rod 4, and the first rod 6 penetrates through and is rotatably connected to the disc 2; the top of the disc 2 is provided with four sliding chutes, the bottoms of the sliding chutes are communicated with the cavity, and the four sliding chutes are arranged in a cross shape on the whole; the four threaded rods 4 are all sleeved with strip-shaped plates 7, and the tops of the strip-shaped plates 7 penetrate through the sliding grooves and are in sliding fit with the sliding grooves; an arc-shaped plate 8 is fixedly connected to one side of the four strip-shaped plates 7 close to the slewing bearing body 3;
when the rotary support is used, the rotary support body 3 is placed at the top of the disc 2, the four arc-shaped plates 8 are ensured to be positioned in the inner ring of the rotary support, then the first rod 6 is rotated, the first rod 6 drives the threaded rod 4 to rotate, the threaded rod 4 drives the bevel gear 5 to rotate, the four threaded rods 4 are all rotated, the four threaded rods 4 drive the four strip-shaped plates 7 to move towards the direction close to the inner ring of the rotary support, the arc-shaped plates 8 are tightly pressed against the inner wall of the inner ring of the rotary support, and the rotary support body 3 is fixed; wherein the rotation direction of two adjacent bevel gears 5 is opposite, and the threaded rod 4 on the corresponding threaded rod 4 surface is also opposite, ensures that four strip shaped plates 7 can realize the fixed to slewing bearing body 3.
In order to further fix the slewing bearing body 3, a pressure plate 9 is arranged on the arc-shaped plate 8; a groove is formed in one side, close to the slewing bearing body 3, of the pressing plate 9, a part of the pressing plate 9 is connected in the groove in a sliding mode, and a bolt 10 penetrates through the top of the arc-shaped plate 8 and is connected with the top of the arc-shaped plate in a rotating mode; during the use, after arc 8 supported on the inner wall of slewing bearing inner circle, the clamp plate 9 slided downwards for clamp plate 9 presses the top at the slewing bearing inner circle, then rotates bolt 10, makes the bottom of bolt 10 support at the top of clamp plate 9, realizes the injecing to clamp plate 9 position, and then realizes being restricted the motion of the vertical direction of slewing bearing inner circle.
In order to avoid the surface of the inner ring of the slewing bearing being scratched by the arc-shaped plate 8, a rubber layer 11 is fixedly connected to one side, close to the inner ring of the slewing bearing, of the arc-shaped plate 8, so that the arc-shaped plate 8 is not in direct contact with the inner ring of the slewing bearing, the damage to the surface of the inner ring of the slewing bearing is reduced, meanwhile, the friction force between the arc-shaped plate 8 and the inner ring of the slewing bearing is also increased, and the inner ring of the slewing bearing is not easy to slide with the arc-shaped plate 8.
In the same way, the rubber layer 11 is correspondingly arranged at the bottom of the pressure plate 9, so that the pressure plate 9 is prevented from damaging the top of the inner ring of the slewing bearing.
One end of the first rod 6, which is positioned outside the disc 2, is provided with a circular ring 12, the circular ring 12 is connected with the first rod 6 through guide plates 13, four guide plates 13 are arranged, and the four guide plates 13 are fixedly connected to the outer wall of the first rod 6 in a surrounding manner; a guide groove is formed in the inner wall of the circular ring 12, and a part of the guide plate 13 is connected in the guide groove in a sliding manner; a handle is fixedly connected to one side of the circular ring 12 far away from the disc 2, and a magnet piece I14 is fixedly connected to one side of the circular ring 12 close to the disc 2; a second magnet piece 15 is fixedly connected to the surface of the disc 2 at a position close to the circular ring 12; during the use, when rotating a pole 6, only need hold the handle, realize the rotation to a pole 6 through handle and ring 12, after a pole 6 rotates the appointed angle, through promoting ring 12, make ring 12 slide along deflector 13 for magnet piece one 14 adsorbs together with magnet piece two 15, prevents that a pole 6 from producing not hard up when rotating along with disc 2, the fixed effect of influence to slewing bearing body 3.
The top of the workbench 1 is provided with two first plates 16, the two first plates 16 are symmetrically arranged at two sides of the disc 2, one side of the first plate 16 close to the disc 2 is fixedly connected with a first hydraulic cylinder, and the end part of an output rod of the first hydraulic cylinder is fixedly connected with a first push plate 17; during the use, drive a push pedal 17 motion through a pneumatic cylinder for the push pedal extrudees slewing bearing body 3, realizes the radial loading to slewing bearing, can pass through the friction torque of this operating condition under this record of torquemeter and save this operating condition slewing bearing that waits to test this moment.
The top of the workbench 1 is fixedly connected with a support plate 18, the support plate 18 is L-shaped, the top of the support plate 18 penetrates through and is connected with two guide rods 19 in a sliding manner, the bottom ends of the guide rods 19 are fixedly connected with a circular plate 22, the top of each guide rod 19 is fixedly connected with an annular plate 20, and a spring 21 is fixedly connected between each annular plate 20 and the top of the support plate 18; the bottom of the circular plate 22 is connected with a rectangular block 23 in a sliding manner, and the bottom of the rectangular block 23 is fixedly connected with a second push plate 24; a second hydraulic cylinder is arranged at the top of the supporting plate 18, and the circular plate 22 is pushed by the second hydraulic cylinder; when the device is used, the second hydraulic cylinder drives the circular plate 22 to move downwards, so that the circular plate 22 drives the second push plate 24 to extrude the top of the inner ring of the slewing bearing, the axial loading of the slewing bearing is realized, and the friction torque of the slewing bearing to be tested in the working state can be recorded and stored through the torquemeter; by pushing the rectangular block 23 to slide on the bottom of the circular plate 22, the second push plate 24 can extrude slewing bearings with different sizes.
The top of the supporting plate 18 is provided with a display screen 25 for displaying detection data, the annular plate 20 is fixedly connected with a cleaning brush 26 at one side close to the display screen 25, bristles of the cleaning brush 26 can be in contact with the back side of the display screen 25, and dust at a heat dissipation hole at the back side of the display screen 25 is cleaned through the up-and-down movement of the cleaning brush 26; by providing the collection gutter 27 on top of the support plate 18 with one side of the collection gutter 27 abutting against the back side of the display screen 25, dust collection is achieved.
When the rotary support is used, the rotary support body 3 is placed at the top of the disc 2, and the four arc-shaped plates 8 are ensured to be positioned in the inner ring of the rotary support, then the first rod 6 is rotated, the first rod 6 drives the threaded rod 4 to rotate, the threaded rod 4 drives the bevel gear 5 to rotate, so that the four threaded rods 4 all rotate, the four threaded rods 4 drive the four strip-shaped plates 7 to move towards the direction close to the inner ring of the rotary support, and the arc-shaped plates 8 are tightly pressed against the inner wall of the inner ring of the rotary support, so that the rotary support body 3 is fixed; after the arc-shaped plate 8 abuts against the inner wall of the inner ring of the slewing bearing, the pressing plate 9 slides downwards, so that the pressing plate 9 is pressed on the top of the inner ring of the slewing bearing, then the bolt 10 is rotated, the bottom end of the bolt 10 abuts against the top of the pressing plate 9, the position of the pressing plate 9 is limited, the movement of the inner ring of the slewing bearing in the vertical direction is limited, and the slewing bearing body 3 is further fixed; when the first rod 6 rotates, only the handle needs to be held by hand, the first rod 6 is rotated through the handle and the circular ring 12, and after the first rod 6 rotates to a specified angle, the circular ring 12 is pushed to slide along the guide plate 13, so that the first magnet piece 14 and the second magnet piece 15 are adsorbed together, and the first rod 6 is prevented from loosening along with the rotation of the disc 2 to influence the fixing effect on the slewing bearing body 3; the detection of the operation state of the slewing bearing in no-load is realized by matching with the use of a torque meter;
the first hydraulic cylinder drives the first push plate 17 to move, so that the push plate extrudes the slewing bearing body 3 to realize radial loading on the slewing bearing, and the friction torque of the slewing bearing to be tested in the working state can be recorded and stored by a torque meter; the second hydraulic cylinder drives the circular plate 22 to move downwards, so that the circular plate 22 drives the second push plate 24 to extrude the top of the inner ring of the slewing bearing, the axial loading of the slewing bearing is realized, and the friction torque of the slewing bearing to be tested in the working state can be recorded and stored through the torque meter; by pushing the rectangular block 23 to slide on the bottom of the circular plate 22, the second push plate 24 can extrude slewing bearings with different sizes.
In the present application, the type of the torque meter is WDIS-IP50, and the detailed structure and operation principle thereof are not described herein.
Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. The utility model provides a slewing bearing test bench, includes workstation (1) and rotates disc (2) of connecting at workstation (1) top, its characterized in that: the rotary support is characterized in that a fixing mechanism used for fixing the rotary support body (3) is arranged on the disc (2), the fixing mechanism comprises an arc plate (8) which is connected to the top of the disc (2) in a sliding mode, and one side of the arc plate (8) is connected with a pressing plate (9) in a sliding mode in the vertical direction.
2. The slewing bearing test bed according to claim 1, wherein a cavity is formed in the disc (2), four threaded rods (4) are rotatably connected in the cavity, bevel gears (5) are fixedly connected to the ends, close to each other, of the four threaded rods (4), and two adjacent bevel gears (5) are meshed with each other; one end of one of the threaded rods (4) is fixedly connected with a first rod (6), and the first rod (6) penetrates through and is rotatably connected to the outer side wall of the disc (2); strip-shaped plates (7) are sleeved on the four threaded rods (4), sliding grooves are formed in the tops of the circular discs (2), and the sliding grooves are communicated with the cavities; the top of the strip-shaped plate (7) penetrates through the sliding groove, and the strip-shaped plate (7) is fixedly connected with the arc-shaped plate (8).
3. The slewing bearing test bed according to claim 1, wherein a groove is formed in one side, away from the strip-shaped plate (7), of each arc-shaped plate (8), and the pressing plate (9) is connected into the groove in a sliding mode; the top of the arc-shaped plate (8) is rotatably connected with a bolt (10).
4. A slewing bearing test bed according to claim 1, characterised in that the curved plate (8) is fixedly connected with a rubber layer (11) at the side far away from the strip-shaped plate (7), and the bottom of the pressure plate (9) is also fixedly connected with the rubber layer (11).
5. A slewing bearing test bed according to claim 2, characterized in that the first rod (6) is provided with a circular ring (12) at one end outside the disc (2), and the circular ring (12) is connected with the first rod (6) through a guide plate (13); one side of the guide plate (13) is fixedly connected to the surface of the first rod (6), and the other side of the guide plate is connected to the inner wall of the circular ring (12) in a sliding manner; a magnet piece I (14) is fixedly connected to one side, close to the disc (2), of the circular ring (12); and a second magnet piece (15) is fixedly connected to the corresponding position of the circular ring (12) of the disc (2).
6. The slewing bearing test bed according to claim 1, wherein two first hydraulic cylinders are symmetrically arranged on the top of the workbench (1) on two sides of the disc (2), and a first push plate (17) is fixedly connected to output shafts of the first hydraulic cylinders.
7. The slewing bearing test bed according to claim 1, wherein a support plate (18) is fixedly connected to the top of the working table (1), a guide rod (19) penetrates through and is slidably connected to the top of the support plate (18), an annular plate (20) is fixedly connected to the top end of the guide rod (19), and a circular plate (22) is fixedly connected to the bottom end of the guide rod (19); a spring (21) is fixedly connected between the annular plate (20) and the support plate (18), and the circular plate (22) is driven by a second hydraulic cylinder; the bottom of the circular plate (22) is connected with a plurality of rectangular blocks (23) in a sliding mode, and the bottom of each rectangular block (23) is fixedly connected with a second push plate (24).
8. A slewing bearing test bed according to claim 7, characterised in that a display screen (25) is fastened to the top of the support plate (18), and a cleaning brush (26) is fastened to the annular plate (20) on the side close to the display screen (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211241293.3A CN115468768A (en) | 2022-10-11 | 2022-10-11 | Slewing bearing test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211241293.3A CN115468768A (en) | 2022-10-11 | 2022-10-11 | Slewing bearing test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115468768A true CN115468768A (en) | 2022-12-13 |
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ID=84337757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211241293.3A Pending CN115468768A (en) | 2022-10-11 | 2022-10-11 | Slewing bearing test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115468768A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116858536A (en) * | 2023-07-03 | 2023-10-10 | 徐州丰禾回转支承制造股份有限公司 | Slewing bearing performance test detection device |
| CN118408738A (en) * | 2024-07-04 | 2024-07-30 | 徐州腾宇回转支承制造有限公司 | A test fixture for gyration supports |
-
2022
- 2022-10-11 CN CN202211241293.3A patent/CN115468768A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116858536A (en) * | 2023-07-03 | 2023-10-10 | 徐州丰禾回转支承制造股份有限公司 | Slewing bearing performance test detection device |
| CN116858536B (en) * | 2023-07-03 | 2024-02-23 | 徐州丰禾回转支承制造股份有限公司 | Slewing bearing performance test detection device |
| CN118408738A (en) * | 2024-07-04 | 2024-07-30 | 徐州腾宇回转支承制造有限公司 | A test fixture for gyration supports |
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