CN114876961B

CN114876961B - Impact-resistant slewing bearing for mining machinery

Info

Publication number: CN114876961B
Application number: CN202210601867.7A
Authority: CN
Inventors: 王书君; 刘火根; 张长平; 王骏; 吴兵
Original assignee: All Terrain Matching Linkage Tracking Photovoltaic Support Flexible Driving Device
Current assignee: Maanshan Jingwei Slewing Bearing Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2023-01-03
Anticipated expiration: 2042-05-30
Also published as: CN114876961A

Abstract

The invention discloses an impact-resistant slewing bearing for mining machinery, which comprises an inner ring body and an outer ring body rotatably arranged on the outer wall of the inner ring body, wherein an inner gear ring is fixedly arranged on the side wall of the inner ring body, a fixing ring is fixedly arranged on the side wall of the outer ring body, a rotating ring is correspondingly arranged on the side wall of the inner ring body, a sliding assembly is arranged between the inner ring body and the rotating ring, and a plurality of fixing blocks are fixedly arranged on the side walls of the fixing ring and the rotating ring; the invention relates to the technical field of slewing bearings; the slewing bearing for the impact-resistant mining machinery effectively prevents the surface tension of the slewing bearing from damaging the slewing bearing, so that the impact resistance of the slewing bearing is enhanced, and the service life of the bearing is prolonged; the bearing capacity of the support is enhanced, the effective vibration reduction is carried out on the force in the vertical direction, meanwhile, the influence of resilience on the vibration reduction is weakened, and the inner gear ring on the side wall of the inner ring body and the side wall of the support are effectively protected.

Description

Impact-resistant slewing bearing for mining machinery

Technical Field

The invention relates to the technical field of slewing bearings, in particular to a slewing bearing for impact-resistant mining machinery.

Background

The slewing bearing is a large bearing capable of bearing comprehensive load and simultaneously bearing larger axial and radial loads and overturning moment. With the progress of society, the slewing bearing also has great brilliance in various fields in social development, and the application range covers a plurality of aspects such as mines, ships, engineering, buildings and the like. In some severe cases, the bearing itself needs to have a large bearing capacity and impact resistance.

The conventional slewing bearing for the mining machinery is simple in structure, flat and non-peculiar in bearing capacity and impact resistance, is deformed or even damaged when being subjected to a large external force, is quite unfavorable for normal use of equipment, is easy to cause paralysis of the equipment, and can cause safety accidents even seriously.

Therefore, the invention provides a slewing bearing for impact-resistant mining machinery to solve the problems.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a slewing bearing for impact-resistant mining machinery, which solves the problems.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a slewing bearing for impact-resistant mining machinery, includes the inner circle body and rotates the outer circle body that sets up inner circle body outer wall department, the fixed ring gear that is equipped with on the lateral wall of inner circle body, the fixed solid fixed ring that is equipped with on the lateral wall of outer circle body, it is equipped with the swivel to correspond on the lateral wall of inner circle body, be equipped with sliding assembly between inner circle body and the swivel, all fix being equipped with a plurality of fixed blocks on the lateral wall of solid fixed ring and swivel, two liang of fixed connection are equipped with the bracing piece between a plurality of fixed blocks, all be equipped with the joint chamber on the lateral wall of one side that inner circle body and outer circle body are close to each other, roll jointly between two joint chambers and be equipped with the spin, the internal oil tank that is equipped with of outer circle, the upper wall department intercommunication of oil tank is equipped with oil pipe, the upper end of oil pipe runs through the outer circle body, and the upper end matching of oil pipe is equipped with the hydraulic fluid port, oil tank and joint chamber intercommunication each other, the internal two sliding chambers that are symmetrical each other set up, the sliding is equipped with the slide, the internal still is equipped with the inner chamber, the damping, the internal horizontal pole intracavity transversely is equipped with the connecting rod, slide is equipped with the connecting rod, the lower wall department is equipped with the movable block that rotates the movable block that the fixed spring is connected the movable block is equipped with the movable block that the movable block is still the lateral wall regulation subassembly.

The invention further defines the technical scheme that:

preferably, the sliding assembly comprises a sliding groove arranged in the inner ring body, a sliding block is arranged in the sliding groove in a sliding mode, and a connecting block is fixedly connected between the sliding block and the rotating ring.

Preferably, an oil leakage plate is arranged between the oil tank and the clamping cavity, and a plurality of oil through holes are formed in the oil leakage plate.

Preferably, the opening part of the sliding cavity is fixedly provided with a limiting block, and the limiting block is connected with the side wall of the sliding cavity in an integrated manner.

Preferably, the adjusting assembly comprises a ratchet wheel rotatably arranged on the upper wall of the moving block, a moving rod is transversely arranged in the inner cavity, sliding blocks are fixedly arranged at two ends of the moving rod, the sliding blocks are slidably arranged on the inner side wall of the inner cavity, a plurality of oblique tooth grooves are uniformly formed in the lower end of the moving rod, the oblique tooth grooves and the ratchet wheel are matched with each other, and two springs are fixedly arranged between the side wall of the other side of the moving rod and the inner cavity.

Preferably, the fixed connecting rod that is equipped with on the lateral wall of carriage release lever, connecting rod and spring are in the homonymy setting, the end of connecting rod runs through the inner circle body, and the fixed flighted plate that is equipped with in end of connecting rod, be equipped with the assorted recess on the outer wall of inner circle body, the flighted plate joint sets up in the recess.

Preferably, a thread groove is formed in the side wall of the thread plate, which is far away from the groove, and the thread groove is formed in the middle of the thread plate.

Preferably, the surface of the vibration reduction spring is coated with protective paint, and the joint of the moving block and the cross rod is coated with lubricating oil.

Advantageous effects

The invention provides a slewing bearing for impact-resistant mining machinery. Compared with the prior art, the method has the following beneficial effects:

(1) This impact-resistant type slewing bearing for mining machinery, through solid fixed ring, mutually supporting of fixed block and bracing piece isotructure, make when inner ring body and outer ring body rotate relatively, fixed block and the bracing piece that is in between solid fixed ring and the swivel becket are in quiescent condition, and set up for triangle-shaped between a plurality of bracing pieces, the tension that has effectively prevented the slewing bearing surface produces the damage to slewing bearing, make slewing bearing's impact resistance obtain the reinforcing, the life of supporting has been increased.

(2) This impact-resistant type slewing bearing for mining machinery, through smooth chamber, the mutually supporting of inner chamber and ratchet isotructure, make when receiving the impact on the outer wall of inner circle body, promote the slide and slide downwards in smooth chamber, under the effect of connecting rod, it slides on the horizontal pole to drive the movable block, and then compression damping spring, when the movable block removes, drive the ratchet simultaneously and rotate on oblique tooth's socket, and the orientation of oblique tooth's socket prevents that the ratchet direction from rotating, make the circumstances that prevents it and take place to kick-back when carrying out the damping, make the bearing capacity reinforcing of supporting, carry out effectual damping to the power in vertical direction, the influence that the resilience produced the damping has been weakened simultaneously, carry out effectual protection to the lateral wall of ring gear on the inner circle body lateral wall and supporting.

Drawings

Fig. 1 is a schematic top view of a slewing bearing for an impact-resistant mining machine according to the present invention;

fig. 2 is a schematic structural diagram of a slewing bearing for an impact-resistant mining machine according to the present invention at a vertical cross section;

FIG. 3 is a schematic view of the structure at A in FIG. 1;

FIG. 4 is a schematic view of the structure at B in FIG. 1;

in the figure 1, the inner ring body; 2. an outer ring body; 3. an inner gear ring; 4. a fixing ring; 5. a fixed block; 6. a support bar; 7. a clamping cavity; 8. rolling a ball; 9. an oil tank; 10. an oil pipe; 11. an oil port; 12. an oil leakage plate; 13. a rotating ring; 14. a slide chamber; 15. a slide plate; 16. a limiting block; 17. a connecting rod; 18. an inner cavity; 19. a groove; 20. a thread plate; 21. a connecting rod; 22. a chute; 23. a slider; 24. connecting blocks; 25. a cross bar; 26. a moving block; 27. a damping spring; 28. a ratchet wheel; 29. a travel bar; 30. an oblique gullet; 31. a slider; 32. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-4, a slewing bearing for impact-resistant mining machinery comprises an inner ring body 1 and an outer ring body 2 rotatably arranged on the outer wall of the inner ring body 1, wherein an inner gear ring 3 is fixedly arranged on the side wall of the inner ring body 1, a fixing ring 4 is fixedly arranged on the side wall of the outer ring body 2, a rotating ring 13 is correspondingly arranged on the side wall of the inner ring body 1, a sliding assembly is arranged between the inner ring body 1 and the rotating ring 13, the sliding assembly comprises a sliding chute 22 arranged in the inner ring body 1, a sliding block 23 is arranged in the sliding chute 22, a connecting block 24 is fixedly connected between the sliding block 23 and the rotating ring 13, so that the arrangement of the fixing block 5 and the supporting rod 6 does not influence the relative rotation between the inner ring body 1 and the outer ring body 2, the impact resistance of the slewing bearing is improved, a plurality of fixing blocks 5 are fixedly arranged on the side walls of the fixing ring 4 and the rotating ring 13, supporting rods 6 are fixedly connected in pairs, the inner ring body 1 and the outer ring body 2 are provided with clamping cavities 7 on the side wall close to each other, rolling balls 8 are arranged between the two clamping cavities 7 in a rolling manner, an oil tank 9 is arranged in the outer ring body 2, an oil pipe 10 is communicated with the upper wall of the oil tank 9, the upper end of the oil pipe 10 penetrates through the outer ring body 2, the upper end of the oil pipe 10 is provided with an oil port 11 in a matching manner, the oil tank 9 is communicated with the clamping cavities 7, an oil leakage plate 12 is arranged between the oil tank 9 and the clamping cavities 7, and a plurality of oil through holes are formed in the oil leakage plate 12, so that lubricating liquid in the oil tank 9 can slowly permeate into the rolling balls 8 through the oil through holes to lubricate the rolling balls 8, two sliding cavities 14 are arranged in the inner ring body 1, the two sliding cavities 14 are symmetrically arranged, sliding plates 15 are arranged in the sliding cavities 14 in a sliding manner, limit blocks 16 are fixedly arranged at the openings of the sliding cavities 14, and the limit blocks 16 are connected with the side walls of the sliding cavities 14 in an integrated manner, the sliding plate 15 is prevented from sliding off from the sliding cavity 14, the stable connection between the limiting block 16 and the sliding cavity 14 is ensured, the normal working process of the device is ensured, the inner cavity 18 is further arranged in the inner ring body 1, the cross rod 25 is transversely and fixedly arranged in the inner cavity 18, the moving block 26 is slidably arranged on the cross rod 25, the connecting rod 17 is rotatably arranged at the lower wall of the sliding plate 15, the other end of the connecting rod 17 is rotatably connected with the moving block 26, the damping spring 27 is fixedly arranged between the moving block 26 and the side wall of the inner cavity 18, the surface of the damping spring 27 is coated with protective paint, lubricating oil is coated at the joint of the moving block 26 and the cross rod 25, and the situation that the surface of the damping spring 27 is oxidized and rusted is prevented, the service life of structure has been guaranteed, the gliding process of movable block 26 on horizontal pole 25 lateral wall has been guaranteed simultaneously, the lateral wall department of movable block 26 still is equipped with adjusting part, through solid fixed ring 4, the mutual cooperation of fixed block 5 and bracing piece 6 isotructure, make when inner ring body 1 and outer ring body 2 rotate relatively, fixed block 5 and bracing piece 6 that are in between solid fixed ring 4 and the swivel becket 13 are in quiescent condition, and be triangle-shaped setting between a plurality of bracing pieces 6, the tension that has effectively prevented the slewing bearing surface produces the damage to slewing bearing, make slewing bearing's shock resistance obtain the reinforcing, the service life of supporting has been increased.

Example two:

referring to fig. 1 to 4, the present embodiment provides a technical solution based on the first embodiment: the adjusting component comprises a ratchet wheel 28 rotatably arranged on the upper wall of the moving block 26, a moving rod 29 is transversely arranged in the inner cavity 18, sliding blocks 31 are fixedly arranged at two ends of the moving rod 29, the sliding blocks 31 are slidably arranged on the inner side wall of the inner cavity 18, a plurality of oblique tooth grooves 30 are uniformly formed in the lower end of the moving rod 29, the oblique tooth grooves 30 and the ratchet wheel 28 are mutually matched, two springs 32 are fixedly arranged between the side wall of the other side of the moving rod 29 and the inner cavity 18, a connecting rod 21 is fixedly arranged on the side wall of the moving rod 29, the connecting rod 21 and the springs 32 are arranged on the same side, the tail end of the connecting rod 21 penetrates through the inner ring body 1, and the tail end of the connecting rod 21 is fixedly provided with a threaded plate 20, the outer wall of the inner ring body 1 is provided with a matched groove 19, the threaded plate 20 is clamped in the groove 19, the side wall of the threaded plate 20 far away from the groove 19 is provided with a threaded groove, the threaded groove is arranged in the middle of the threaded plate 20, so that, when it is desired to remove the thread plate 20 from the recess 19, only the threads of a bolt or the like are disposed in the thread groove, the threaded plate 20 can be pulled out by pulling out the bolt, and through the mutual matching of the structures such as the sliding cavity 14, the inner cavity 18 and the ratchet 28, so that when impact is applied to the outer wall of the inner ring body 1, the sliding plate 15 is pushed to slide downwards in the sliding cavity 14, under the action of the connecting rod 17, the moving block 26 is driven to slide on the cross rod 25, thereby compressing the damping spring 27, and when the moving block 26 moves, at the same time, the ratchet wheel 28 is driven to rotate on the helical tooth groove 30, and the orientation of the helical tooth groove 30 prevents the ratchet wheel 28 from rotating, so that the vibration damping is carried out while the rebound condition is prevented, the bearing capacity of the bearing is enhanced, carry out effectual damping to the ascending power of vertical direction, weakened the influence that the resilience produced the damping simultaneously, carry out effectual protection to the lateral wall of ring gear 3 and support on the inner circle body 1 lateral wall.

And those not described in detail in this specification are well within the skill of those in the art.

When the vibration reduction device works, firstly, when the inner ring body 1 and the outer ring body 2 rotate relatively, the fixed block 5 and the support rods 6 between the fixed ring 4 and the rotating ring 13 are in a static state, and the plurality of support rods 6 are arranged in a triangular shape, so that damage to the slewing bearing caused by the surface tension of the slewing bearing is effectively prevented, when the outer wall of the inner ring body 1 is impacted, the sliding plate 15 is pushed to slide downwards in the sliding cavity 14, the moving block 26 is driven to slide on the cross rod 25 under the action of the connecting rod 17, and further the vibration reduction spring 27 is compressed, when the moving block 26 moves, the ratchet 28 is driven to rotate on the inclined tooth groove 30 at the same time, and the inclined tooth groove 30 is prevented from rotating in the direction of the ratchet 28, so that the situation of rebounding is prevented while vibration reduction is carried out, then, when the maintenance of the bearing is carried out, only the bolt is connected with the thread plate 20, the thread plate 20 is pulled out, the inclined tooth groove 30 is separated from the ratchet 28, and under the action of the vibration reduction spring 27, the connecting rod 17 is pushed to rotate, so that the sliding plate 15 retreats to the sliding cavity 14 again, and the vibration reduction process of the opening of the lower opening is facilitated.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a slewing bearing for impact-resistant mining machinery, includes inner ring body (1) and rotates outer ring body (2) that set up inner ring body (1) outer wall department, fixed ring gear (3), its characterized in that of being equipped with on the lateral wall of inner ring body (1): the oil-water separator is characterized in that a fixing ring (4) is fixedly arranged on the side wall of the outer ring body (2), a rotating ring (13) is correspondingly arranged on the side wall of the inner ring body (1), a sliding assembly is arranged between the inner ring body (1) and the rotating ring (13), a plurality of fixing blocks (5) are fixedly arranged on the side wall of the fixing ring (4) and the rotating ring (13), every two fixing connections between the fixing blocks (5) are provided with a support rod (6), a clamping cavity (7) is arranged on one side wall of the inner ring body (1) and the outer ring body (2) which are close to each other, rolling balls (8) are arranged between the two clamping cavities (7) in a rolling mode, an oil tank (9) is arranged in the outer ring body (2), an oil pipe (10) is communicated at the upper wall of the oil tank (9), the upper end of the oil pipe (10) penetrates through the outer ring body (2), an oil port (11) is arranged at the upper end of the oil pipe (10) in a matching mode, the oil tank (9) and the clamping cavity (7) are communicated with each other, two sliding cavities (14) are symmetrically arranged in the inner sliding ring body (1), a transverse cross rod (18) is arranged in the sliding block (18), and a transverse cross rod (25) is arranged in the sliding block (18), the lower wall of the sliding plate (15) is rotatably provided with a connecting rod (17), the other end of the connecting rod (17) is rotatably connected with a moving block (26), a damping spring (27) is fixedly arranged between the moving block (26) and the side wall of the inner cavity (18), and an adjusting assembly is further arranged on the side wall of the moving block (26).

2. The slewing bearing for impact-resistant mining machinery according to claim 1, wherein: the sliding assembly comprises a sliding groove (22) arranged in the inner ring body (1), a sliding block (23) is arranged in the sliding groove (22) in a sliding mode, and a connecting block (24) is fixedly connected between the sliding block (23) and the rotating ring (13).

3. The slewing bearing for impact-resistant mining machinery according to claim 1, wherein: an oil leakage plate (12) is arranged between the oil tank (9) and the clamping cavity (7), and a plurality of oil through holes are formed in the oil leakage plate (12).

4. The slewing bearing for impact-resistant mining machinery according to claim 1, wherein: a limiting block (16) is fixedly arranged at an opening of the sliding cavity (14), and the limiting block (16) is connected with the side wall of the sliding cavity (14) in an integrated forming mode.

5. The slewing bearing for impact-resistant mining machinery according to claim 1, wherein: the adjusting assembly comprises a ratchet wheel (28) rotatably arranged on the upper wall of a moving block (26), a moving rod (29) is transversely arranged in the inner cavity (18), sliding blocks (31) are fixedly arranged at two ends of the moving rod (29), the sliding blocks (31) are slidably arranged on the inner side wall of the inner cavity (18), a plurality of oblique tooth grooves (30) are uniformly formed in the lower end of the moving rod (29), the oblique tooth grooves (30) and the ratchet wheel (28) are arranged in a matched mode, and two springs (32) are fixedly arranged between the side wall of the other side of the moving rod (29) and the inner cavity (18).

6. The slewing bearing for impact-resistant mining machinery according to claim 5, wherein: fixed connecting rod (21) that is equipped with on the lateral wall of carriage release lever (29), connecting rod (21) and spring (32) are in the homonymy setting, the end of connecting rod (21) runs through inner circle body (1), and the fixed flighted board (20) that is equipped with in end of connecting rod (21), be equipped with assorted recess (19) on the outer wall of inner circle body (1), flighted board (20) joint sets up in recess (19).

7. The slewing bearing for impact-resistant mining machinery according to claim 6, wherein: the side wall of the threaded plate (20) far away from the groove (19) is provided with a threaded groove, and the threaded groove is formed in the middle of the threaded plate (20).

8. The slewing bearing for impact-resistant mining machinery according to claim 1, wherein: protective paint is coated on the surface of the vibration reduction spring (27), and lubricating oil is coated at the joint of the moving block (26) and the cross rod (25).