CN219293861U

CN219293861U - Bearing outer ring taking-out device

Info

Publication number: CN219293861U
Application number: CN202320278748.2U
Authority: CN
Inventors: 王文伟
Original assignee: Jiangsu Daming Industrial Technology Group Co ltd
Current assignee: Jiangsu Daming Industrial Technology Group Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-07-04
Anticipated expiration: 2033-02-22

Abstract

The utility model discloses a bearing outer ring taking-out device, which relates to the technical field of bearing dismounting equipment and comprises a columnar thimble fixing sleeve, a movable shaft, a plurality of expansion thimbles and an outer nut, wherein the thimble fixing sleeve is coaxially provided with a through hole, the thimble fixing sleeve side is uniformly provided with a plurality of movable holes at the same level, and the movable holes are vertical to and communicated with the through hole; according to the utility model, the thimble fixing sleeve stretches into the bearing outer ring, the movable shaft is rotated, the triggering conical surface at the tail end of the movable shaft is abutted against the contact conical surface of the collapsible thimble, at the moment, the collapsible thimbles move to one side of the bearing outer ring until the bearing outer ring is abutted, one end of the movable shaft, which is far away from the thimble fixing sleeve, is connected with the standard pin puller, and the bearing outer ring is pulled out of the inner hole of the device through the pulling force of the pin puller.

Description

Bearing outer ring taking-out device

Technical Field

The utility model relates to the technical field of bearing dismounting equipment, in particular to a bearing outer ring taking-out device.

Background

The bearing is a common accessory in the mechanical industry, the installation clearance of the bearing is in tight fit installation, and the bearing is difficult to disassemble; therefore, when the bearing is disassembled, the puller is often required to be used for assisting in disassembly, the existing bearing inner hole puller is required to be provided with a supporting point, and the puller head is relatively large and cannot be applied to the small bearing inner hole, so that the bearing outer ring taking-out device is required.

Disclosure of Invention

Aiming at the problems that the existing bearing inner hole puller needs to be provided with a supporting point, the puller head is relatively large and cannot be applied to a small bearing inner hole, the utility model solves the problems by extending the thimble fixing sleeve into the bearing outer ring, rotating the movable shaft, enabling the triggering conical surface at the tail end of the movable shaft to abut against the contact conical surface of the collapsible thimble, enabling the plurality of collapsible thimbles to move to one side of the bearing outer ring until the bearing outer ring is abutted, connecting one end of the movable shaft away from the thimble fixing sleeve with a standard pin puller, and taking the bearing outer ring out of the equipment inner hole through the pulling force of the pin puller.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the bearing outer ring taking-out device comprises a columnar thimble fixing sleeve, a movable shaft, a plurality of expansion thimble and an outer nut, wherein a through hole is coaxially formed in the thimble fixing sleeve, a plurality of movable holes are uniformly formed in the thimble fixing sleeve side in the same level, and the movable holes are vertical to and communicated with the through hole;

the plurality of expansion and contraction ejector pins are respectively movably arranged in the corresponding movable holes, one ends of the plurality of expansion and contraction ejector pins extend to the inner side of the ejector pin fixing sleeve, and the inner ends of the plurality of expansion and contraction ejector pins are contact conical surfaces;

the movable shaft is coaxially and movably arranged in the thimble fixing sleeve through the through hole, and one end of the movable shaft, which is close to the expansion thimble, is a trigger conical surface;

the outer nut is coaxially arranged at one end of the thimble fixing sleeve, the outer nut is in threaded connection with the movable shaft, and one end of the movable shaft, which is far away from the expansion thimble, is connected with the standard pin puller.

It is further characterized in that,

one end of the movable shaft, which is far away from the expansion thimble, is coaxially sleeved with a fixed hexahedron.

The outer side ends of the plurality of the expansion and contraction ejector pins are abutted against the conical surface.

The thimble fixing sleeve, the movable shaft, the fixed hexahedron, the plurality of expansion thimble and the outer nut are all made of 45 # steel materials.

The structure of the utility model can achieve the following beneficial effects:

(1) When the device is used, the thimble fixing sleeve stretches into the outer ring of the bearing, the movable shaft is rotated again, the triggering conical surface at the tail end of the movable shaft is abutted against the contact conical surface of the collapsible thimble, at the moment, the plurality of collapsible thimbles move to one side of the outer ring of the bearing until the outer ring of the bearing is abutted, one end of the movable shaft, which is far away from the thimble fixing sleeve, is connected with a standard pin puller, and the outer ring of the bearing is pulled out of an inner hole of the device through the pulling force of the pin puller;

(2) The device has the advantages of simple structure and low manufacturing cost, can be manufactured into a matched device according to different bearings, improves the single-bearing outer ring taking-out efficiency, is simple to operate, and has obvious effect of taking out the blind hole bearing outer ring of small-sized precision equipment.

Drawings

Fig. 1 is a schematic structural view of the present embodiment;

fig. 2 is a schematic diagram of a related structure at a movable shaft in the present embodiment;

FIG. 3 is a sectional view showing the structure of the thimble fixing sleeve in this embodiment;

FIG. 4 is a schematic view of the structure of the thimble fixing sleeve in the present embodiment;

fig. 5 is a schematic view of a fixed hexahedral structure in the present embodiment.

In the figure: 1. a thimble fixing sleeve; 11. a movable hole; 12. a through hole; 2. a movable shaft; 21. triggering a conical surface; 3. fixing hexahedron; 4. a collapsible thimble; 41. a contact conical surface; 42. a conical surface is abutted; 5. an outer nut.

Detailed Description

1-5, the bearing outer ring taking-out device comprises a columnar thimble fixing sleeve 1, a movable shaft 2, a plurality of expansion thimble 4 and an outer nut 5, wherein a through hole 12 is coaxially formed in the thimble fixing sleeve 1, a plurality of movable holes 11 pointing to the axle center of the thimble fixing sleeve 1 are uniformly formed on the annular side of the thimble fixing sleeve 1 in the same level, and the movable holes 11 are vertical to and communicated with the through hole 12;

the plurality of collapsible ejector pins 4 are respectively movably arranged in the corresponding movable holes 11, one ends of the plurality of collapsible ejector pins 4 extend to the inner side of the ejector pin fixing sleeve 1, and the inner ends of the plurality of collapsible ejector pins 4 are contact conical surfaces 41;

the movable shaft 2 is coaxially and movably arranged in the thimble fixing sleeve 1 through the through hole 12, and one end of the movable shaft 2, which is close to the expansion thimble 4, is provided with a trigger conical surface 21;

the outer nut 5 is coaxially and fixedly arranged at one end of the thimble fixing sleeve 1, the outer nut 5 is in threaded connection with the movable shaft 2, and one end of the movable shaft 2, which is far away from the expansion thimble 4, is connected with a standard pin puller.

Based on the structure, when the device is used, the thimble fixing sleeve 1 stretches into the outer ring of the bearing, the movable shaft 2 is rotated again, the triggering conical surface 21 at the tail end of the movable shaft 2 is abutted against the contact conical surface 41 of the collapsible thimble 4, and the collapsible thimbles 4 are moved to one side of the outer ring of the bearing until the outer ring of the bearing is abutted, and one end of the movable shaft 2, far away from the thimble fixing sleeve 1, is connected with a standard pin puller, and the outer ring of the bearing is taken out of an inner hole of the device through pulling force of the pin puller.

Wherein, the coaxial cover of one end that loose axle 2 kept away from the shrink thimble 4 is equipped with fixed hexahedron 3, through setting up fixed hexahedron 3 control loose axle 2 that can be better and rotate.

Wherein, the outside end of a plurality of swell-shrink thimble 4 all contradicts conical surface 42, through setting up conflict conical surface 42, when making the shrink thimble 4 conflict in the bearing inner race, can be more firm.

The thimble fixing sleeve 1, the movable shaft 2, the fixed hexahedron 3, the plurality of expansion thimble 4 and the outer nut 5 are made of 45 # steel materials, and 45 # steel is high-quality carbon structural steel, so that the thimble fixing sleeve has higher strength and deformation resistance, and the service life of the thimble fixing sleeve is prolonged.

The working principle of the utility model is as follows: when the device is used, the movable shaft 2 is rotated again by stretching the thimble fixing sleeve 1 into the bearing outer ring, the triggering conical surface 21 at the tail end of the movable shaft 2 is abutted against the contact conical surface 41 of the collapsible thimble 4, and a plurality of collapsible thimbles 4 move to one side of the bearing outer ring until the bearing outer ring is tightly jacked, one end of the movable shaft 2, which is far away from the thimble fixing sleeve 1, is connected with a standard pin puller, and the bearing outer ring is taken out of an equipment inner hole through the pulling force of the pin puller.

The device has the advantages of simple structure and low manufacturing cost, can be manufactured into a matched device according to different bearings, improves the single-bearing outer ring taking-out efficiency, is simple to operate, and has obvious effect of taking out the blind hole bearing outer ring of small-sized precision equipment.

The above are only preferred embodiments of the present application, and the present utility model is not limited to the above examples. It is to be understood that other modifications and variations which may be directly derived or contemplated by those skilled in the art without departing from the spirit and concepts of the present utility model are deemed to be included within the scope of the present utility model.

Claims

1. The bearing outer ring taking-out device comprises a columnar thimble fixing sleeve (1), a movable shaft (2), a plurality of expansion thimble (4) and an outer nut (5), and is characterized in that the thimble fixing sleeve (1) is coaxially provided with a through hole (12), a plurality of movable holes (11) which point to the axle center of the thimble fixing sleeve (1) are uniformly formed on the annular side of the thimble fixing sleeve (1) in the same level, and the movable holes (11) are perpendicular to and communicated with the through hole (12);

the plurality of expansion and contraction thimbles (4) are respectively and movably arranged in the corresponding movable holes (11), one ends of the expansion and contraction thimbles (4) extend to the inner side of the thimble fixing sleeve (1), and the inner ends of the expansion and contraction thimbles (4) are contact conical surfaces (41);

the movable shaft (2) is coaxially and movably arranged in the thimble fixing sleeve (1) through the through hole (12), and one end, close to the expansion thimble (4), of the movable shaft (2) is a trigger conical surface (21);

the outer nut (5) is coaxially arranged at one end of the thimble fixing sleeve (1), the outer nut (5) is in threaded connection with the movable shaft (2), and one end, far away from the expansion thimble (4), of the movable shaft (2) is connected with the standard pin puller.

2. The bearing outer race extraction device of claim 1 wherein: one end of the movable shaft (2) far away from the expansion thimble (4) is coaxially sleeved with a fixed hexahedron.

3. The bearing outer race extraction device of claim 1 wherein: the outer side ends of the plurality of the expansion thimble (4) are abutted against the conical surface (42).

4. The bearing outer race extraction device of claim 1 wherein: the thimble fixing sleeve (1), the movable shaft (2), the fixed hexahedron (3), the plurality of expansion thimble (4) and the outer nut (5) are all made of 45 # steel materials.