Flange type slewing bearing

Abstract

The utility model discloses a flange type slewing bearing, which relates to the technical field of slewing bearings, and comprises a slewing bearing main body consisting of an inner ring, an outer ring, a shrinkage hole and a through hole, and an alignment auxiliary part, and the alignment auxiliary part is used for realizing the alignment operation of the through hole and a mounting hole on equipment. According to the utility model, by arranging the aligning auxiliary part, when the slewing bearing main body is hoisted to be close to the equipment to be mounted through external hoisting equipment, the lower ring block is upwards moved by the equipment to be mounted and contracted into the minimum contraction groove, and then the inner ring or the outer ring is rotated, and when the lower ring block is rotated to be aligned with a mounting hole in the equipment to be mounted, the lower ring block is aligned with the mounting hole in the equipment to be mounted; and the lower ring block pops up and is clamped into the inner side of the mounting hole in the equipment to be mounted under the action of the elastic force of the lower ring block, so that the through hole is aligned with the mounting hole in the equipment to be mounted, the alignment operation efficiency of the through hole and the mounting hole is effectively improved through the matching of a plurality of parts, and the mounting efficiency of the slewing bearing is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to slewing ring technical field, specifically a flange slewing ring. BACKGROUND

[0002] Slewing ring is a kind of mechanical parts, and it is composed of outer ring, inner ring and rolling element, and the outer ring and the inner ring can rotate relatively, and it is called the "joint" of machine, and it is widely used in engineering machinery, light industry machinery and various mechanical equipment;

[0003] The outer ring and the inner ring of flange slewing ring have certain width, a plurality of through holes are arranged on the outer ring and the inner ring, the outer ring and the inner ring can be regarded as flange plate, and two mechanical parts that need to rotate relatively can be installed through flange slewing ring by bolt, for example, a plurality of flange slewing rings are installed on mechanical arm, and the mechanical arm can rotate in multiple dimensions.

[0004] When installing flange slewing ring, the through holes on the inner and outer rings need to be aligned with the mounting holes on the equipment, the existing flange slewing ring does not have corresponding alignment structure, so a certain time is needed to realize alignment operation during installation, based on this, in order to further improve the alignment efficiency of the through holes of flange slewing ring and the mounting holes, a flange slewing ring is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at: in order to solve the problem in the above background, provide a kind of flange slewing ring.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of flange slewing ring, including the slewing ring main body of inner ring, outer ring, the outer ring is rotatably connected to the outer side of inner ring by rolling element, the top and bottom of the inner ring, outer ring are symmetrically provided with shrinkage hole, the inside of the inner ring, outer ring is provided with the through hole that is penetrated with two shrinkage holes, the through hole, the channel of shrinkage hole for the screw rod portion of bolt is crossed is formed;

[0007] The inside of the through hole, shrinkage hole is provided with alignment auxiliary part, and the alignment auxiliary part is used to realize the alignment operation of the through hole and the mounting hole on equipment;

[0008] The alignment auxiliary part includes upper ring block, first connecting column, outer ring groove, lower ring block, second connecting column, inner ring groove;

[0009] The first connecting column is fixed to the bottom of upper ring block, and the outer ring groove is formed on the outer side of the first connecting column close to the bottom position;

[0010] The second connecting column is fixed to the top of lower ring block, and the inner ring groove is formed on the outer side of the second connecting column close to the top position;

[0011] The first connecting column and the second connecting column are respectively penetrated to the inside of the through hole through two contraction holes at the upper and lower ends, and the first connecting column and the second connecting column are mutually sleeved through the outer ring groove and the inner ring groove;

[0012] The upper ring block and the lower ring block are respectively protruded from the upper and lower ends of the inner ring and the outer ring, and are inserted into the equipment mounting hole for realizing the alignment operation of the through hole and the equipment mounting hole.

[0013] As a further scheme of the utility model, the inner diameter of the upper ring block, the first connecting column, the lower ring block and the second connecting column matches the outer diameter of the screw rod of the bolt.

[0014] As a further scheme of the utility model, the contraction hole is in a flared mouth structure, the outer diameter of the upper ring block and the lower ring block is smaller than the maximum inner diameter of the contraction hole and larger than the minimum inner diameter of the contraction hole, and the height of the upper ring block and the lower ring block is smaller than the depth of the contraction hole.

[0015] As a further scheme of the utility model, the bottom end of the first connecting column is formed with an outer convex ring matching the inner diameter of the inner ring groove, and the inner side of the top of the second connecting column is formed with an inner convex ring matching the inner diameter of the outer ring groove.

[0016] As a further scheme of the utility model, the upper ring block, the first connecting column and the outer ring groove are integrally formed by a rubber injection molding process, and the lower ring block, the second connecting column and the inner ring groove are integrally formed by a rubber injection molding process.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] By setting the alignment auxiliary part, when the slewing bearing body is hoisted close to the equipment to be installed by the external hoisting equipment, the lower ring block is moved upward to be contracted into the minimum contraction groove from the equipment to be installed, then the inner ring or the outer ring is rotated, and when the lower ring block is rotated to be aligned with the mounting hole on the equipment to be installed, the lower ring block is popped out and clamped into the inner side of the mounting hole on the equipment to be installed under the action of the elastic force of the lower ring block, so that the through hole is aligned with the mounting hole on the equipment to be installed, the alignment operation efficiency of the through hole and the mounting hole is effectively improved through the cooperation of the above multiple parts, and the installation efficiency of the slewing bearing is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structural schematic view of the utility model;

[0020] Fig. 2 It is a structural sectional view of the inner ring and the outer ring of the utility model;

[0021] Fig. 3The utility model discloses a split schematic view of alignment auxiliary part and inner ring, outer ring.

[0022] Fig. 4 The utility model discloses a structure sectional view of alignment auxiliary part.

[0023] In the drawing: 1, slewing bearing main body, 101, inner ring, 102, outer ring, 103, contraction hole, 104, through hole, 2, alignment auxiliary part, 201, upper ring block, 202, first connecting column, 203, outer ring groove, 204, lower ring block, 205, second connecting column, 206, inner ring groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the utility model.

[0025] Please refer to Figs. 1-4 In the embodiments of the utility model, a flange slewing bearing comprises a slewing bearing main body 1 composed of an inner ring 101 and an outer ring 102, the outer ring 102 is rotationally connected to the outer side of the inner ring 101 through rolling elements, the top and the bottom of the inner ring 101 and the outer ring 102 are symmetrically provided with contraction holes 103, the inside of the inner ring 101 and the outer ring 102 is provided with through holes 104 penetrating through the two contraction holes 103, and the through holes 104 and the contraction holes 103 form a channel for the screw rod of a bolt to pass through.

[0026] The inside of the through holes 104 and the contraction holes 103 is provided with an alignment auxiliary part 2, and the alignment auxiliary part 2 is used for realizing the alignment operation of the through holes 104 and the mounting holes on the equipment.

[0027] The alignment auxiliary part 2 comprises an upper ring block 201, a first connecting column 202, an outer ring groove 203, a lower ring block 204, a second connecting column 205 and an inner ring groove 206.

[0028] The first connecting column 202 is fixed to the bottom of the upper ring block 201, and the outer ring groove 203 is formed at the position close to the bottom on the outer side of the first connecting column 202.

[0029] The second connecting column 205 is fixed to the top of the lower ring block 204, and the inner ring groove 206 is formed at the position close to the top on the outer side of the second connecting column 205.

[0030] The first connecting column 202 and the second connecting column 205 are respectively penetrated to the inside of the through hole 104 through the two contraction holes 103 at the upper and lower ends, and the first connecting column 202 and the second connecting column 205 are mutually sleeved through the outer ring groove 203 and the inner ring groove 206;

[0031] The upper ring block 201 and the lower ring block 204 are respectively protruded from the upper and lower ends of the inner ring 101 and the outer ring 102, and are inserted into the equipment mounting hole for realizing the alignment operation of the through hole 104 and the equipment mounting hole;

[0032] The inner diameters of the upper ring block 201, the first connecting column 202, the lower ring block 204 and the second connecting column 205 are matched with the outer diameter of the screw rod of the bolt;

[0033] The contraction hole 103 is in a flared mouth structure, the outer diameters of the upper ring block 201 and the lower ring block 204 are smaller than the maximum inner diameter of the contraction hole 103 and larger than the minimum inner diameter of the contraction hole 103, and the heights of the upper ring block 201 and the lower ring block 204 are smaller than the depth of the contraction hole 103.

[0034] In the embodiment, it is necessary to supplement that the rolling element is installed between the outer side of the inner ring 101 and the inner side of the outer ring 102, and the sealing element is installed between the inner ring 101 and the outer ring 102, and since this is the existing structure technology, it is not expanded and described in detail;

[0035] When the slewing bearing is installed, the slewing bearing body 1 is hoisted by the external hoisting equipment to be close to the equipment to be installed, the lower ring block 204 will first contact the surface of the equipment to be installed, at this time, the lower ring block 204 is moved upward to the minimum contraction slot 103 inside from the equipment to be installed, at this time, the lower ring block 204 is deformed and contracted under stress, then the inner ring 101 or the outer ring 102 is rotated to perform the alignment operation of the through hole 104 and the mounting hole on the equipment to be installed, when the lower ring block 204 is rotated to be aligned with the mounting hole on the equipment to be installed, the lower ring block 204 is popped out and clamped into the inner side of the mounting hole on the equipment to be installed under the action of its own elastic force, so that the alignment of the through hole 104 and the mounting hole on the equipment to be installed is realized;

[0036] Then the bolt is penetrated through the upper ring block 201, the first connecting column 202, the second connecting column 205, the lower ring block 204 and the mounting hole, and then the nut is threadedly connected with the bolt and is tightened, at this time, the upper ring block 201 is extruded and contracted into the upper contraction slot 103 from the bolt, at this time, the upper ring block 201 is deformed and contracted under stress and is closely fitted to the outer side of the screw rod of the bolt, so that the bolt can be provided with a certain anti-loosening resistance;

[0037] Through the cooperation of the above multiple parts, the alignment operation efficiency of the through hole 104 and the mounting hole is effectively improved, and then the installation efficiency of the slewing bearing is further improved.

[0038] Please refer to this carefully. Figs. 1-4 The bottom outer side of the first connecting post 202 is formed with an outer convex ring that matches the inner diameter of the inner ring groove 206, and the top inner side of the second connecting post 205 is formed with an inner convex ring that matches the inner diameter of the outer ring groove 203.

[0039] The upper ring block 201, the first connecting post 202, and the outer ring groove 203 are integrally formed by rubber injection molding, and the lower ring block 204, the second connecting post 205, and the inner ring groove 206 are integrally formed by rubber injection molding.

[0040] In this embodiment: This result allows the first connecting post 202 and the second connecting post 205 to slide relative to each other, thereby providing space for the contraction of the upper ring block 201 and the lower ring block 204;

[0041] Meanwhile, when installing the alignment auxiliary component 2, it is only necessary to insert the first connecting post 202 and the second connecting post 205 into the through hole 104 from the two contraction holes 103 respectively. Then, the outer convex ring and the inner convex ring contact each other and deform by mutual compression. Finally, the outer convex ring and the inner convex ring are misaligned and distributed. At this time, the connection and installation of the upper ring block 201 and the lower ring block 204 are completed.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flange-type slewing bearing, comprising a slewing bearing body (1) consisting of an inner ring (101) and an outer ring (102), wherein the outer ring (102) is rotatably connected to the outside of the inner ring (101) via rolling elements, characterized in that, The inner ring (101) and the outer ring (102) are symmetrically provided with contraction holes (103) at the top and bottom. The inner ring (101) and the outer ring (102) are provided with through holes (104) that communicate with the two contraction holes (103). The channel formed by the through holes (104) and the contraction holes (103) is used for the bolt shank to pass through. Alignment aids (2) are provided inside the through hole (104) and the contraction hole (103). The alignment aids (2) are used to align the through hole (104) with the mounting hole on the device. The alignment aid (2) includes an upper ring block (201), a first connecting post (202), an outer ring groove (203), a lower ring block (204), a second connecting post (205), and an inner ring groove (206). The first connecting post (202) is fixed to the bottom of the upper ring block (201), and the outer ring groove (203) is formed on the outer side of the first connecting post (202) near the bottom; The second connecting post (205) is fixed to the top of the lower ring block (204), and the inner ring groove (206) is formed on the outer side of the second connecting post (205) near the top. The first connecting post (202) and the second connecting post (205) pass through the two contraction holes (103) at the upper and lower ends respectively into the through hole (104), and the first connecting post (202) and the second connecting post (205) are slidably connected to each other through the outer ring groove (203) and the inner ring groove (206); The upper ring block (201) and the lower ring block (204) protrude from the upper and lower ends of the inner ring (101) and the outer ring (102) respectively. They are inserted into the equipment mounting hole through the upper ring block (201) and the lower ring block (204) to realize the alignment operation between the through hole (104) and the equipment mounting hole.

2. A flange-type slewing bearing according to claim 1, characterized in that, The inner diameters of the upper ring block (201), the first connecting post (202), the lower ring block (204), and the second connecting post (205) are matched with the outer diameter of the bolt thread.

3. A flange-type slewing bearing according to claim 1, characterized in that, The contraction hole (103) has a flared structure. The outer diameter of the upper ring block (201) and the lower ring block (204) is smaller than the maximum inner diameter of the contraction hole (103) but larger than the minimum inner diameter of the contraction hole (103). The height of the upper ring block (201) and the lower ring block (204) is smaller than the depth of the contraction hole (103).

4. A flange-type slewing bearing according to claim 1, characterized in that, The bottom outer side of the first connecting post (202) is formed with an outer convex ring that matches the inner diameter of the inner ring groove (206), and the top inner side of the second connecting post (205) is formed with an inner convex ring that matches the inner diameter of the outer ring groove (203).

5. A flange-type slewing bearing according to claim 1, characterized in that, The upper ring block (201), the first connecting post (202), and the outer ring groove (203) are integrally formed by rubber injection molding, and the lower ring block (204), the second connecting post (205), and the inner ring groove (206) are integrally formed by rubber injection molding.

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