Novel slewing bearing

Abstract

The utility model discloses a novel slewing bearing, which relates to the technical field of slewing bearings and comprises a slewing bearing consisting of an outer ring and an inner ring, the outer side of the outer ring is provided with an oil filling port, the inner side of the oil filling port is fixedly provided with an oil filling valve, the inner side of the oil filling port is provided with an annular clamping groove, and the oil filling valve is fixedly arranged in the annular clamping groove. The outer side of the outer ring is provided with a containing groove communicated with the oil injection opening. A dustproof assembly is installed on the inner side of the oil injection port and comprises a plugging unit and a dismounting unit, the plugging unit is used for conducting plugging protection operation on the oil injection port, and the dismounting unit is used for achieving rapid dismounting operation of the plugging unit and the oil injection port. The oil filling port can be blocked and protected by arranging the dustproof assembly, external impurities are prevented from entering the oil filling port to block the oil filling valve, the dustproof assembly is easy and convenient to disassemble, and the convenience of oil filling operation cannot be affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a slewing bearing technical field, concretely a novel slewing bearing. BACKGROUND

[0002] Slewing bearing is a kind of large bearing that can bear comprehensive load, can bear large axial load, radial load and overturning moment simultaneously, and is composed of inner and outer rings, rolling elements and the like.

[0003] Slewing bearing needs to be oiled to keep smooth rotation when in use, in order to facilitate oiling operation of slewing bearing, some slewing bearings will set oil inlet on the outside of outer ring, so that oil inlet can be directly contacted to carry out oiling operation, but in actual use, oil inlet exposed to the outside is prone to store impurities, and in serious cases, oil inlet can be blocked, in order to avoid this situation, a novel slewing bearing is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at: in order to solve the problem in the above background, provide a kind of novel slewing bearing.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of novel slewing bearing, including the slewing bearing of outer ring, inner ring, the outer side of the outer ring is equipped with oil inlet, the inner side of the oil inlet is fixedly installed with oil valve, the inner side of the oil inlet is equipped with annular clamping groove, the outer side of the outer ring is equipped with the storage groove that is communicated with oil inlet;

[0006] The inner side of the oil inlet is installed with dustproof assembly, and the dustproof assembly includes a plugging unit and a dismounting unit, the plugging unit is used for plugging and protecting the oil inlet, and the dismounting unit is used for quickly dismounting the plugging unit and the oil inlet;

[0007] The plugging unit includes an outer ring block, a plug-in cylinder, an annular clamping block and a conical rubber sleeve.

[0008] The plug-in cylinder is fixed to one end of the outer ring block, the annular clamping block is fixed to the outer side of the plug-in cylinder, and the conical rubber sleeve is fixed to the inner side of the plug-in cylinder.

[0009] The plug-in cylinder is connected and fixed with the oil inlet by being clamped in the inner side of the annular clamping groove through the annular clamping block, the outer ring block is accommodated in the inner side of the storage groove, and the conical rubber sleeve is used to achieve the effect of shielding dust.

[0010] As a further scheme of the utility model, the dismounting unit includes a contraction opening and a connecting block.

[0011] The contraction opening is provided on the outer side of the plug-in cylinder and penetrates the plug-in cylinder and the annular clamping block, and the connecting block is fixed to one end of the conical rubber sleeve close to the outer ring block.

[0012] The hooking hole is arranged on the connecting block, and the hooking hole is pulled by an external hook to realize deformation and contraction of the part where the insertion cylinder column is provided with the contraction hole, so that the annular clamping block and the annular clamping groove are separated.

[0013] As a further scheme of the utility model: the arc surface structure is arranged on the outer side of the one end of the annular clamping block away from the outer ring block, and the inner diameter of the annular clamping block is greater than the outer diameter of the end head of the oil inlet.

[0014] As a further scheme of the utility model: the outer diameter of the insertion cylinder column matches the inner diameter of the oil inlet, the outer diameter of the outer ring block matches the outer diameter of the receiving groove, and the length of the outer ring block is less than the depth of the receiving groove.

[0015] As a further scheme of the utility model: the outer ring block, the insertion cylinder column, the annular clamping block, the contraction hole, the conical rubber sleeve, the connecting block and the hooking hole are integrally formed through a rubber injection molding process.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] The dustproof assembly is arranged to block and protect the oil inlet, so that external impurities cannot enter the oil inlet to block the oil valve, and the dustproof assembly is simple and convenient to disassemble, and does not affect the convenience of oiling operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a structural schematic view of the utility model;

[0019] Fig. 2 It is a structural schematic view of the dustproof assembly of the utility model;

[0020] Fig. 3 It is a structural sectional view of the dustproof assembly of the utility model.

[0021] In the drawing: 1, rotary support; 101, outer ring; 102, inner ring; 103, oil inlet; 104, oil valve; 105, annular clamping groove; 106, receiving groove; 2, dustproof assembly; 201, outer ring block; 202, insertion cylinder column; 203, annular clamping block; 204, contraction hole; 205, conical rubber sleeve; 206, connecting block; 207, hooking hole. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0023] Please refer to Figs. 1-3 In the embodiment of the present application, a novel slewing bearing comprises a slewing bearing 1 composed of an outer ring 101 and an inner ring 102, an oil injection port 103 is formed on the outer side of the outer ring 101, an oil injection valve 104 is fixedly installed on the inner side of the oil injection port 103, an annular clamping groove 105 is formed on the inner side of the oil injection port 103, and a storage groove 106 in communication with the oil injection port 103 is formed on the outer side of the outer ring 101.

[0024] A dustproof assembly 2 is installed on the inner side of the oil injection port 103, and the dustproof assembly 2 comprises a plugging unit and a dismounting unit, the plugging unit is used for plugging and protecting the oil injection port 103, and the dismounting unit is used for quickly dismounting the plugging unit from the oil injection port 103.

[0025] The plugging unit comprises an outer ring block 201, a plug-in cylinder 202, an annular clamping block 203 and a conical rubber sleeve 205.

[0026] The plug-in cylinder 202 is fixed to one end of the outer ring block 201, the annular clamping block 203 is fixed to the outer side of the plug-in cylinder 202, and the conical rubber sleeve 205 is fixed to the inner side of the plug-in cylinder 202.

[0027] The plug-in cylinder 202 is connected and fixed with the oil injection port 103 by being clamped in the inner side of the annular clamping groove 105 through the annular clamping block 203, the outer ring block 201 is accommodated in the inner side of the storage groove 106, and the conical rubber sleeve 205 is used for achieving the dustproof effect.

[0028] The dismounting unit comprises a contraction port 204 and a connecting block 206.

[0029] The contraction port 204 is formed on the outer side of the plug-in cylinder 202 and penetrates through the plug-in cylinder 202 and the annular clamping block 203, and the connecting block 206 is fixed to one end of the conical rubber sleeve 205 close to the outer ring block 201.

[0030] A hooking hole 207 is formed on the connecting block 206, the plug-in cylinder 202 is deformed and contracted at the part where the contraction port 204 is formed by hooking and pulling the hooking hole 207 with an external hook, so as to separate the annular clamping block 203 from the annular clamping groove 105.

[0031] The outer diameter of the plug-in cylinder 202 matches the inner diameter of the oil filling port 103, the outer diameter of the outer ring block 201 matches the outer diameter of the receiving groove 106, and the length of the outer ring block 201 is less than the depth of the receiving groove 106.

[0032] In this embodiment: when the slewing bearing 1 is in use, the dustproof assembly 2 can block and protect the oil filling port 103, preventing external impurities from entering the oil filling port 103 and causing the oil filling valve 104 to be blocked, and the installation operation of the dustproof assembly 2 is as follows:

[0033] Align the plug-in cylinder 202 and insert it into the oil filling port 103, when the annular clamping block 203 contacts the inner wall of the oil filling port 103, the annular clamping block 203 is subjected to extrusion force from the inner wall of the oil filling port 103, and due to the structure of the contraction opening 204, the annular clamping block 203 and the part of the plug-in cylinder 202 herein shrink inward, so that the annular clamping block 203 can smoothly enter the inside of the oil filling port 103;

[0034] When the annular clamping block 203 is aligned with the annular clamping groove 105, the plug-in cylinder 202 and the annular clamping block 203 reset under the action of their own elastic force, the annular clamping block 203 is clamped into the inside of the annular clamping groove 105, at this time the outer ring block 201 is received in the receiving groove 106, and the conical rubber sleeve 205 separates the oil filling port 103 from the external environment, thereby achieving the effect of dustproof protection;

[0035] When oil filling operation is needed, the operation steps are as follows:

[0036] Hook the hooking hole 207 from the outside and pull it outward, the pulling force is transmitted to the part of the plug-in cylinder 202 provided with the contraction opening 204 through the conical rubber sleeve 205, so that this part of the plug-in cylinder 202 shrinks inward (it should be noted that the shrinkage is small), so that the annular clamping block 203 shrinks inward, the edge of the annular clamping block 203 approaches the edge of the annular clamping groove 105, and under the condition of increasing pulling force, the edge of the annular clamping block 203 and the edge of the annular clamping groove 105 are extruded, the edge of the annular clamping block 203 is deformed and shrinks, and finally the annular clamping block 203 is removed from the inside of the annular clamping groove 105, at this time the disassembly of the dustproof assembly 2 is completed, and then the oil filling operation can be performed, and after the operation is completed, the dustproof assembly 2 is installed.

[0037] Please refer to Figs. 1-3 , the outer side of the end of the annular clamping block 203 away from the outer ring block 201 is arc-shaped, and the inner diameter of the annular clamping block 203 is greater than the outer diameter of the end of the oil filling port 103.

[0038] In the embodiment: through the arc surface structure of the annular clamping block 203, when it is inserted into the oil inlet 103, it can better bear force and shrink, and the other end surface of the annular clamping block 203 is a straight surface structure, so that the clamping stability of the annular clamping block 203 and the annular clamping groove 105 can be ensured.

[0039] Please refer to Figs. 1-3 The annular block 201, the plug-in barrel column 202, the annular clamping block 203, the shrinkage opening 204, the conical rubber sleeve 205, the connecting block 206 and the hooking hole 207 are integrally formed through a rubber injection molding process.

[0040] In the embodiment: through the rubber injection molding, the integrated molding production of the dustproof assembly 2 is realized, and the annular clamping groove 105 and the storage groove 106 can be processed and formed through a numerical control lathe, so that the overall structure is simple in processing technology and convenient to popularize and apply.

[0041] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A novel slewing bearing, comprising a slewing bearing (1) composed of an outer ring (101) and an inner ring (102), an oil injection port (103) is formed on the outer side of the outer ring (101), an oil injection valve (104) is fixedly installed on the inner side of the oil injection port (103), characterized in that, The inner side of the oil inlet (103) is provided with an annular clamping groove (105), and the outer side of the outer ring (101) is provided with a receiving groove (106) in communication with the oil inlet (103); The inner side of the oil inlet (103) is provided with a dustproof assembly (2), which comprises a plugging unit and a dismounting unit, the plugging unit is used for plugging and protecting the oil inlet (103), and the dismounting unit is used for quickly dismounting the plugging unit and the oil inlet (103); The plugging unit comprises an outer ring block (201), a plug-in cylinder (202), an annular clamping block (203) and a conical rubber sleeve (205); The plug-in cylinder (202) is fixed to one end of the outer ring block (201), the annular clamping block (203) is fixed to the outer side of the plug-in cylinder (202), and the conical rubber sleeve (205) is fixed to the inner side of the plug-in cylinder (202); The plug-in cylinder (202) is connected and fixed with the oil inlet (103) by being clamped in the inner side of the annular clamping groove (105) through the annular clamping block (203), the outer ring block (201) is received in the inner side of the receiving groove (106), and the conical rubber sleeve (205) is used to realize the dustproof effect.

2. A new type of slewing bearing according to claim 1, characterized in that The dismounting unit comprises a contraction opening (204) and a connecting block (206); The contraction opening (204) is provided on the outer side of the plug-in cylinder (202) and penetrates the plug-in cylinder (202) and the inner and outer sides of the annular clamping block (203), and the connecting block (206) is fixed to one end of the conical rubber sleeve (205) close to the outer ring block (201); The connecting block (206) is provided with a hooking hole (207), and the plug-in cylinder (202) is deformed and contracted at the part provided with the contraction opening (204) by hooking and pulling the hooking hole (207) with an external hook, so that the annular clamping block (203) is separated from the annular clamping groove (105).

3. A new type of slewing bearing according to claim 1, characterized in that The outer side of one end of the annular clamping block (203) away from the outer ring block (201) is arc-shaped, and the inner diameter of the annular clamping block (203) is greater than the outer diameter of the end of the oil inlet (103).

4. A new type of slewing bearing according to claim 2, characterized in that The outer diameter of the plug-in cylinder (202) matches the inner diameter of the oil inlet (103), the outer diameter of the outer ring block (201) matches the outer diameter of the receiving groove (106), and the length of the outer ring block (201) is less than the depth of the receiving groove (106).

5. A new type of slewing bearing according to claim 1, characterized in that The outer ring block (201), the plug-in cylinder (202), the annular clamping block (203), the contraction opening (204), the conical rubber sleeve (205), the connecting block (206) and the hooking hole (207) are integrally formed by a rubber injection molding process.

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