CN115468768A - Slewing bearing test bed - Google Patents

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

A slewing bearing test bench

technical field

The invention relates to the technical field of detection of slewing bearings, in particular to a slewing bearing test bench.

Background technique

The slewing bearing is a large bearing capable of bearing comprehensive loads. It can withstand large axial loads, radial loads and overturning moments at the same time during work. It is widely used in construction machinery; in the production process of slewing bearings, it is required To detect its performance, there is also a corresponding test bench in the prior art to detect it.

For example, a patent with the application number CN202021980917X discloses a slewing bearing test bench, including a horizontal telescopic cylinder, a workbench, and a base. A first hydraulic driver is installed on one side of the top of the base, and the output end of the first hydraulic driver passes through the rotating shaft. The first gear is connected in rotation, the four corners of the top of the base are welded with outriggers, and the top of the outriggers is welded with a workbench, the inside of the worktable is rotatably connected with a turning rod, and the bottom end of the turning rod extends to the workbench Below, the outer wall of the rotating rod below the worktable is provided with a second gear, and the top of the rotating rod extends to the top of the working table, and the top of the rotating rod is provided with a supporting inner ring. This patent applies thrust through multiple telescopic cylinders, thereby simulating the real force, and detects the inner and outer rings of the support. At the same time, it can also detect the speed and temperature changes in the process, and obtain enough data with high authenticity, which has the advantages of real detection. .

However, the above-mentioned test bench has the following defects in use: when testing the slewing bearing, it is necessary to install the slewing bearing on the top of the rotary table through the cooperation of the positioning rod and the positioning hole, and the position of the positioning rod is fixed, so only one For the fixing of slewing bearings of different sizes, when fixing slewing bearings of different sizes, it is necessary to replace the corresponding rotating table and or other fasteners, which is cumbersome and time-consuming.

Contents of the invention

The object of the present invention is to provide a slewing bearing test bench.

The technical problem solved by the present invention is: when the existing test bench detects the slewing bearing, it is necessary to install the slewing bearing on the top of the rotary table through the cooperation of the positioning rod and the positioning hole, and the position of the positioning rod is fixed, which can only realize When fixing a slewing bearing of one size, when fixing a slewing bearing of a different size, it is necessary to replace the corresponding rotating table and or other fasteners, which is cumbersome and time-consuming.

The present invention can be realized through the following technical solutions: a slewing bearing test bench, including a workbench and a disk connected to the top of the workbench in rotation, a fixing mechanism for fixing the slewing bearing body is arranged on the disk, the fixing mechanism includes The arc plate at the top of the disc, one side of the arc plate slides in the vertical direction to connect the pressing plate.

The further technical improvement of the present invention lies in: a cavity is arranged inside the disk, and four threaded rods are rotatably connected in the cavity, and the ends of the four threaded rods close to each other are all fixedly connected with bevel gears, and two adjacent bevel gears One end of one of the threaded rods is fixedly connected to a No. 1 rod, and the No. 1 rod penetrates and is rotatably connected to the outer wall of the disc; the four threaded rods are all sleeved with strip plates, and the top of the disc A chute is provided, and the chute communicates with the cavity; the top of the strip-shaped plate runs through the chute, and the strip-shaped plate is fixedly connected with the arc-shaped plate.

The further technical improvement of the present invention is that: each arc-shaped plate is provided with a groove on the side away from the strip-shaped plate, and the pressure plate is slidably connected in the groove; the top of the arc-shaped plate is rotatably connected with a bolt.

The further technical improvement of the present invention is that: the arc-shaped plate is fixedly connected with a rubber layer on the side away from the strip-shaped plate, and the bottom of the pressing plate is also fixedly connected with a rubber layer.

The further technical improvement of the present invention is that: the No. 1 rod is provided with a ring at one end outside the disk, and the ring is connected with the No. 1 rod through a guide plate; one side of the guide plate is fixed on the surface of the No. 1 rod, and the other One side is slidably connected to the inner wall of the ring; the ring is fixedly connected with a magnet piece 1 on a side close to the disc; and the disc is fixedly connected with a magnet piece 2 at a corresponding position of the ring.

The further technical improvement of the present invention lies in that two No. 1 hydraulic cylinders are symmetrically installed on both sides of the disk on the top of the workbench, and the output shaft of the No. 1 hydraulic cylinder is fixedly connected with a No. 1 push plate.

The further technical improvement of the present invention is: the top of the workbench is fixedly connected with a support plate, the top of the support plate penetrates and is slidably connected with a guide rod, 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 firmly connected between the annular plate and the support plate, and the circular plate is driven by the No. 2 hydraulic cylinder; the bottom of the circular plate is slidingly connected with multiple rectangular blocks, and the bottom of each rectangular block is fixed with a No. 2 push plate.

The further technical improvement of the present invention is that: a display screen is fixedly connected to the top of the support plate, and a cleaning brush is fixedly connected to the side of the annular plate close to the display screen.

Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention is equipped with a fixing mechanism, which drives the threaded rod to rotate through the No. 1 rod, and cooperates with the action between the four bevel gears, so that the four threaded rods drive the four arc-shaped plates through the strip plate toward the inner cavity of the slewing bearing. Move in the direction of the slewing bearing, and then realize the fixation of the slewing bearing, and then push the pressure plate downward, so that the pressure plate is close to the top of the slewing bearing, and the locking of the pressure plate is realized by the bolt, and the fixing of the slewing bearing is further realized, which is convenient for realizing a certain range Installation of slewing bearings of different sizes.

2. The present invention is equipped with a magnet piece 1 and a magnet piece 2. When the rotation angle of the No. 1 pole reaches the requirement, the magnet piece 1 and the magnet piece 2 are adsorbed together to realize the fixing of the No. 1 pole and prevent the No. 1 pole from being As the disk rotates, looseness occurs, which affects the fixing effect on the slewing bearing body.

Description of drawings

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the partial structural connection schematic diagram of the present invention;

Fig. 3 is the schematic structural view of No. 1 rod and the joint of the ring in the present invention;

Fig. 4 is the local structure schematic diagram of four threaded rod connections among the present invention;

Fig. 5 is a partial enlarged view of A in Fig. 1 of the present invention.

In the figure: 1. Workbench; 2. Disc; 3. Slewing bearing body; 4. Threaded rod; 5. Bevel gear; 6. No. 1 rod; 7. Strip plate; 8. Arc plate; 10, bolts; 11, rubber layer; 12, ring; 13, guide plate; 14, magnet piece one; 15, magnet piece two; 16, No. 1 plate; 17, No. 1 push plate; 18, Support plate; 19, guide rod; 20, annular plate; 21, spring; 22, circular plate; 23, rectangular block; 24, No. 2 push plate; 25, display screen; 26, cleaning brush; 27, collecting tank.

detailed description

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Please refer to Fig. 1-Fig. 5, a kind of slewing bearing test bench includes a workbench 1, the top of the workbench 1 is rotatably connected with a disc 2, and the disc 2 is driven by a motor, and the output shaft of the motor is A torque meter is also connected; the top of the disk 2 is equipped with a slewing support body 3 through a fixing mechanism; a cavity is provided inside the disk 2; the fixing mechanism includes four threaded rods 4 of equal size, and the four threaded rods 4 are integrally The top is arranged in a cross, and the four threaded rods 4 are fixedly connected with bevel gears 5 at the ends close to each other, and the four bevel gears 5 are meshed with each other, and one end of one threaded rod 4 is fixedly connected with a No. 1 rod 6, The No. 1 rod 6 runs through and rotates connected to the disk 2; the top of the disk 2 is provided with four chutes, and the bottom of the chutes communicates with the cavity, and the four chutes are also arranged in a cross on the whole; The threaded rods 4 are equipped with a strip plate 7, the top of the strip plate 7 runs through the chute, and is in a sliding fit state with the chute; the four strip plates 7 are on the side close to the slewing support body 3 A curved plate 8 is fixedly connected;

When in use, place the slewing support body 3 on the top of the disc 2, and ensure that the four arc-shaped plates 8 are located in the inner ring of the slewing support, and then turn the No. 1 rod 6 so that the No. 1 rod 6 drives the threaded rod 4 to rotate, and the threaded rod 4 drives the bevel gear 5 to rotate, so that the four threaded rods 4 all rotate, and then the four threaded rods 4 drive the four strip plates 7 to move towards the direction close to the inner ring of the slewing bearing, and make the arc plate 8 tight It is against the inner wall of the inner ring of the slewing bearing to realize the fixation of the slewing bearing body 3; the rotation direction of the two adjacent bevel gears 5 is opposite, and the threaded rod 4 on the surface of the corresponding threaded rod 4 is also opposite, ensuring that the four strip plates 7 can realize the fixation to the slewing bearing body 3 .

In order to further fix the slewing support body 3, a pressing plate 9 is provided on the arc-shaped plate 8; a groove is opened on the side of the pressing plate 9 close to the slewing support body 3, and a part of the pressing plate 9 is slidably connected in the groove, and the arc The top of the shaped plate 8 runs through and is connected with bolts 10; when in use, when the arc-shaped plate 8 touches the inner wall of the inner ring of the slewing ring, slide the pressing plate 9 downward, so that the pressing plate 9 presses on the top of the inner ring of the slewing ring, Then turn the bolt 10 so that the bottom end of the bolt 10 abuts against the top of the pressure plate 9, thereby limiting the position of the pressure plate 9, and then restricting the vertical movement of the inner ring of the slewing bearing.

In order to prevent the surface of the inner ring of the slewing ring from being scratched by the arc-shaped plate 8, a rubber layer 11 is fixed on the side of the arc-shaped plate 8 close to the inner ring of the slewing ring, so that the arc-shaped plate 8 does not directly contact the inner ring of the slewing ring. The damage to the surface of the inner ring of the slewing ring is reduced, and the friction force between the arc plate 8 and the inner ring of the slewing ring is also increased, so that the inner ring of the slewing ring is not easy to slip between the inner ring of the slewing ring and the arc plate 8 .

Similarly, the bottom of the pressing plate 9 is correspondingly provided with a rubber layer 11 to prevent the pressing plate 9 from causing damage to the top of the inner ring of the slewing bearing.

One end of the No. 1 rod 6 located outside the disk 2 is provided with a ring 12, and the ring 12 is connected with the No. 1 rod 6 through a guide plate 13. There are four guide plates 13, and the four guide plates 13 are fixed around On the outer wall of No. 1 pole 6; the inner wall of the ring 12 is provided with a guide groove, and a part of the guide plate 13 is slidably connected in the guide groove; One side of the disc 2 is affixed with a magnet sheet 14; the surface of the disc 2 is affixed with a magnet sheet 2 15 at a position close to the ring 12; when in use, when rotating the No. 1 lever 6, you only need to hold the handle , through the handle and the ring 12 to realize the rotation of the No. 1 rod 6, when the No. 1 rod 6 rotates to a specified angle, by pushing the ring 12, the ring 12 slides along the guide plate 13, so that the magnet piece 14 is aligned with the The second magnet sheet 15 is adsorbed together to prevent the No. 1 rod 6 from loosening when rotating with the disc 2, which affects the fixing effect on the slewing support body 3.

The top of the workbench 1 is provided with two No. 1 plates 16, and the two No. 1 plates 16 are symmetrically arranged on both sides of the disc 2. The No. 1 plate 16 is fixedly connected with a No. 1 hydraulic cylinder on the side close to the disc 2. The end of the output rod of the No. 1 hydraulic cylinder is fixedly connected with a No. 1 push plate 17; when in use, the No. 1 hydraulic cylinder drives the No. 1 push plate 17 to move, so that the push plate squeezes the slewing bearing body 3 to realize radial loading on the slewing bearing. , at this time, the friction torque of the slewing bearing to be tested in this working state can be recorded and saved by the torque meter.

The top of the workbench 1 is fixedly connected with a support plate 18, and the support plate 18 is L-shaped. The top of the support plate 18 runs through and is slidably connected with two guide rods 19. The bottom ends of the guide rods 19 are fixedly connected with a circular plate 22, and The top of the rod 19 is affixed with an annular plate 20, and a spring 21 is affixed between the annular plate 20 and the top of the support plate 18; the bottom of the circular plate 22 is slidingly connected with a rectangular block 23, and the bottom of the rectangular block 23 is affixed with a No. Plate 24; the No. 2 hydraulic cylinder is installed on the top of the support plate 18, and the circular plate 22 is pushed by the No. 2 hydraulic cylinder; when in use, the No. 2 hydraulic cylinder drives the circular plate 22 to move downward, so that the circular plate 22 drives the No. The push plate 24 squeezes the top of the inner ring of the slewing bearing to realize the axial loading of the slewing bearing. At this time, the friction torque of the slewing bearing to be tested in this working state can be recorded and saved through the torque meter; by pushing the rectangular block 23 on the circular plate 22 bottoms slide so that No. 2 push pedal 24 can extrude slewing rings of different sizes.

The top of support plate 18 is equipped with display screen 25, is used to realize the display to detection data, and annular plate 20 is affixed with cleaning brush 26 on the side close to display screen 25, and the bristle of cleaning brush 26 can be connected with the back of display screen 25. Side contact, through the up and down movement of the cleaning brush 26, the cleaning of the dust at the heat dissipation holes on the back side of the display screen 25 is realized; The back side is used to realize the collection of dust.

When the present invention is in use, the slewing support body 3 is placed on the top of the disc 2, and the four arc-shaped plates 8 are ensured to be located in the inner ring of the slewing support, and then the No. 1 rod 6 is rotated so that the No. 1 rod 6 drives the threaded rod 4 to rotate , the threaded rods 4 drive the bevel gear 5 to rotate, so that the four threaded rods 4 all rotate, and then the four threaded rods 4 drive the four strip plates 7 to move towards the direction close to the inner ring of the slewing bearing, and make the arc plate 8 tightly against the inner wall of the inner ring of the slewing bearing to realize the fixation of the main body 3 of the slewing bearing; when the arc-shaped plate 8 is pressed against the inner wall of the inner ring of the slewing bearing, slide the pressing plate 9 downward, so that the pressing plate 9 is pressed in the slewing bearing the top of the ring, and then turn the bolt 10 so that the bottom end of the bolt 10 is against the top of the pressure plate 9 to realize the limitation of the position of the pressure plate 9, and then realize the restriction of the vertical movement of the inner ring of the slewing bearing, and realize the control of the slewing bearing. Further fixation of the body 3; wherein when rotating the No. 1 rod 6, only the handle needs to be held, and the rotation of the No. 1 rod 6 is realized through the handle and the ring 12. When the No. 1 rod 6 rotates to a specified angle, by pushing the circle Ring 12, so that the circular ring 12 slides along the guide plate 13, so that the magnet piece 14 and the magnet piece 2 15 are adsorbed together, preventing the No. 1 rod 6 from loosening when rotating with the disc 2, and affecting the rotation of the slewing bearing body 3 The fixed effect; with the use of the torque meter, the detection of the operating state of the slewing bearing at no-load is realized;

The No. 1 hydraulic cylinder drives the No. 1 push plate 17 to move, so that the push plate squeezes the slewing bearing body 3 to realize radial loading on the slewing bearing. At this time, the torque meter can be used to record and save the slewing bearing to be tested in this working state. Frictional torque; the No. 2 hydraulic cylinder drives the circular plate 22 to move downwards, so that the circular plate 22 drives the No. 2 push plate 24 to squeeze the top of the inner ring of the slewing bearing to realize the axial loading of the slewing bearing. At this time, it can be recorded by the torque meter And save the friction torque of the slewing bearing to be tested in this working state; by pushing the rectangular block 23 to slide on the bottom of the circular plate 22, the No. 2 push plate 24 can squeeze the slewing bearing of different sizes.

In this application, the model of the torque meter is WDIS-IP50, and its specific structure and working principle will not be repeated here.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art , without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or be modified into equivalent embodiments with equivalent changes, but as long as it does not depart from the technical solution of the present invention, the technical content of the present invention In essence, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present 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).

Images