CN217168369U

CN217168369U - Blind hole bearing puller

Info

Publication number: CN217168369U
Application number: CN202123357410.6U
Authority: CN
Inventors: 赵研霖; 罗杰; 雷波; 于泽轩
Original assignee: China Construction Civil Engineering Co Ltd
Current assignee: China Construction Civil Engineering Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-08-12
Anticipated expiration: 2031-12-29

Abstract

A blind hole bearing puller comprises a U-shaped structural body, a middle stiffening structure fixed between two vertical parts of the U-shaped structural body, a pulling rod in threaded connection with a transverse part of the U-shaped structural body and the middle stiffening structure, and a gripper fixed on the middle stiffening structure; the gripper comprises two grippers, the two grippers respectively comprise an arc-shaped transition section and an attaching section, the arc-shaped transition section is hinged with the middle stiffening structure, and the attaching sections of the two grippers are attached to each other; the thread of the drawing rod penetrates through the end part of the middle stiffening structure and extends into the attaching section to prop open the two grippers. The device is applied to construction, the problems of the traditional tool in the process of taking out the bearing can be effectively solved, the potential safety hazard is reduced compared with the traditional construction method, the operation speed is greatly improved, and the cost consumption in the construction operation is reduced.

Description

Blind hole bearing puller

Technical Field

The utility model relates to a building construction tool field specifically belongs to a blind hole bearing draws ware.

Background

The removal of bearings has been a minor problem in the repair of construction site machinery, where removal of bearings may damage the bearing and associated parts such as the shaft if the tools and techniques used are incorrect. When the shaft and bearing are damaged during the bearing removal process, losses in time and material costs typically occur. Furthermore, the prior art machines and techniques for extracting bearings are not perfect for the following reasons:

(1) when the steel chisel is used for knocking, the bearing is taken out, so that the surface of the bearing is damaged, the bearing is clamped seriously, the bearing sleeve is damaged by excessive force, and the mechanical maintenance cost is increased;

(2) the use of tools such as drilling out and the like greatly costs labor and time, and the efficiency is extremely low;

(3) the use of the drill rod out of the tool easily causes safety problems, which cannot be ignored.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a blind hole bearing puller, there is the potential safety hazard, the inconvenient technical problem of application method in the bearing extraction method of solving prior art.

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

the blind hole bearing puller is characterized in that: the device comprises a U-shaped structure body, a middle stiffening structure fixed between two vertical parts of the U-shaped structure body, a drawing rod in threaded connection with a transverse part of the U-shaped structure body and the middle stiffening structure, and a gripper fixed on the middle stiffening structure; the gripper comprises two grippers, the two grippers respectively comprise an arc-shaped transition section and an attaching section, the arc-shaped transition section is hinged with the middle stiffening structure, and the attaching sections of the two grippers are attached to each other; the thread of the pulling rod penetrates through the end part of the middle stiffening structure and extends into the attaching section to prop open the two grippers.

Preferably, the middle stiffening structure is an H-shaped structure, two side plates of the H-shaped structure are respectively clamped and fixed to two sides of the vertical portion of the U-shaped structure body, the vertical threads of the pulling rod penetrate through a middle reinforcing member between the two side plates, a shaft rod is further connected between the two side plates, and the arc-shaped transition section is hinged to the shaft rod.

Further, the thickness of the arc transition section is adaptive to the distance between the two side plates.

Further, the drawing rod comprises a threaded rod and a knob rod fixed perpendicular to the end of the threaded rod.

Furthermore, clamping nuts are arranged on the upper side and the two sides of the transverse part of the drawing rod.

In addition, the arc openings of the arc transition sections of the two grippers are arranged oppositely.

More preferably, the ends of the two sections of the attaching section are turned outwards to form a hook-shaped structure.

Compared with the prior art the utility model has the following characteristics and beneficial effect:

use this device to construct and can effectually solve the problem that traditional instrument exists to taking out bearing work, compare traditional construction method and reduced the potential safety hazard, great promotion operating speed, the cost consumption in the construction operation has been reduced, can adjust the position of the fulcrum of pull rod according to the bearing of equidimension not, accord with the basic requirement of mechanical maintenance environment of modern times, can put into production as the senior substitute of traditional bearing taking out instrument and use, it is a mature stable bearing puller, obvious security has, economy and practicality, wide application prospect has.

Drawings

Fig. 1 is the schematic structural diagram of the blind bearing puller of the present invention.

Reference numerals: 1-U-shaped structural body; 2-a middle stiffening structure; 3-pulling a rod; 4, gripping the hand; 41-arc transition section; 42-a fitting section; 43-hook configuration; 5-shaft lever; 6-clamping the nut.

Detailed Description

In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention will be further described below.

The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

A blind hole bearing puller is shown in figure 1 and comprises a U-shaped structural body 1, a middle stiffening structure 2 fixed between two vertical parts of the U-shaped structural body 1, a pulling rod 3 in threaded connection with a transverse part of the U-shaped structural body 1 and the middle stiffening structure 2, and a gripper 4 fixed on the middle stiffening structure 2; the gripper 4 comprises two grippers, the two grippers respectively comprise an arc transition section 41 and an attaching section 42, the arc transition section 41 is hinged with the middle stiffening structure 2, and the attaching sections 42 of the two grippers are attached to each other; the thread of the drawing rod 3 passes through the end part of the middle stiffening structure 2 and extends into the joint section 42 to open the two grippers.

Middle part stiffening structure 2 is H type structure, and the both sides board of H type structure respectively the clamping is in 1 perpendicular portion both sides of U type structure body, and the perpendicular screw thread of pull rod 3 passes the middle part reinforcement between the board of both sides, still is connected with axostylus axostyle 5 between the board of both sides, and arc changeover portion 41 is connected with axostylus axostyle 5 is articulated.

The thickness of the arc transition section 41 is adapted to the distance between the two side plates, so that the arc transition section 41 is prevented from displacing in the working process; the end part of the drawing rod 3 inserted into the joint section 42 is of a conical structure, the drawing rod 3 comprises a threaded rod and a knob rod fixed on the end part of the vertical threaded rod, clamping nuts 6 are arranged on the two sides of the upper and lower transverse parts of the drawing rod 3, and the arc openings of the arc transition sections are arranged oppositely.

The ends of the two attaching sections 42 are turned outwards to form hook-shaped structures 43, so that friction force is formed between the hook-shaped structures 43 and the bearing.

This application overall structure comprises the Q275 low carbon alloy steel that accords with national standard, has guaranteed the stability and the high strength nature of this structure, and the multi-purpose concatenation of this structure guarantees can conveniently change when the part of somewhere damages simultaneously. Before operation, the hand grip with rubber band bound on the lower part of the device is inserted into the middle of a bearing to be taken out, the upper force application screw rod is screwed to move the hand grip to the lower part of the device, the lower part of the force application screw rod opens the hand grip until the hand grip can be stably and reliably fixed on the inner side of the bearing, and the broken bearing to be replaced can be taken out by gradually screwing the screw.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The blind hole bearing puller is characterized in that: the device comprises a U-shaped structure body (1), a middle stiffening structure (2) fixed between two vertical parts of the U-shaped structure body (1), a pull rod (3) in threaded connection with a transverse part of the U-shaped structure body (1) and the middle stiffening structure (2), and a gripper (4) fixed on the middle stiffening structure (2); the gripper (4) comprises two grippers, the two grippers respectively comprise an arc transition section (41) and an attaching section (42), the arc transition section (41) is hinged with the middle stiffening structure (2), and the attaching sections (42) of the two grippers are attached to each other; the thread of the drawing rod (3) penetrates through the end part of the middle stiffening structure (2) and extends into the attaching section (42) to prop open the two grippers.

2. The blind bearing puller according to claim 1, wherein: the middle stiffening structure (2) is of an H-shaped structure, two side plates of the H-shaped structure are respectively clamped and fixed on two sides of a vertical part of the U-shaped structure body (1), a vertical thread of the drawing rod (3) penetrates through a middle reinforcing piece between the two side plates, a shaft lever (5) is further connected between the two side plates, and the arc-shaped transition section (41) is hinged to the shaft lever (5).

3. The blind bearing puller according to claim 2, wherein: the thickness of the arc transition section (41) is adapted to the distance between the two side plates.

4. The blind bearing puller according to claim 2, wherein: the end part of the drawing rod (3) inserted into the attaching section (42) is of a conical structure.

5. The blind bearing puller according to claim 1, wherein: the drawing rod (3) comprises a threaded rod and a knob rod which is perpendicular to the end part of the threaded rod and fixed.

6. The blind bearing puller according to claim 1, wherein: and clamping nuts (6) are arranged on both sides of the upper and transverse parts of the drawing rod (3).

7. The blind bearing puller according to claim 1, wherein: the arc openings of the arc transition sections of the two grippers are oppositely arranged.

8. The blind bearing puller according to any one of claims 1 to 7, wherein: the ends of the two attaching sections (42) are turned outwards to form a hook-shaped structure (43).