CN212683813U

CN212683813U - Special shaft puller

Info

Publication number: CN212683813U
Application number: CN202021076731.1U
Authority: CN
Inventors: 丁作良; 秦晓勇; 任登科
Original assignee: Xinxiang Green Machinery Co ltd
Current assignee: Xinxiang Green Machinery Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-03-12
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses a special axle puller, including main lead screw, bearing and work piece, the bottom welding of main lead screw has the connection lead screw, and seted up the external screw thread on the lateral wall of connection lead screw, the inside joint of work piece has the round pin axle, and seted up the internal thread on the inside wall of round pin axle, it is threaded connection with the round pin axle through external screw thread and internal thread to connect the lead screw, be provided with the bearing upper cover on the outer wall of bearing one side, and the bearing upper cover is "7" font structural distribution, be provided with the bearing lower cover on the outer wall that the bearing upper cover opposite side was kept away from to the bearing, the welding has the outer tube on the outer wall that. The utility model discloses at the in-process that main lead screw removed, the nut produced great pressure, and the bearing can remove along with the nut under the effect of pressure to frictional force in the nut working process reaches laborsaving quick purpose of dismantling, and main lead screw can be through connecting external screw thread and selling epaxial internal thread and round pin hub connection on the lead screw.

Description

Special shaft puller

Technical Field

The utility model relates to a pull out a technical field, especially relate to a special use and pull out a ware.

Background

The shaft is a common connecting piece in engineering machinery equipment, is applied to a shaft on medium-tonnage and small-tonnage engineering machinery, and needs to be disassembled and assembled when parts are damaged or need to be replaced and maintained. Along with engineering machine tool product develops to the large-tonnage, whole car weight during its operating condition is bigger and bigger, be subject to the restriction of transportation size and weight for large-scale engineering machine tool equipment adopts the dismouting transportation more, consequently, many parts and operation device will carry out frequent dismouting, to the part through the hub connection, the dismantlement and the installation of axle become a big bottleneck that restricts production efficiency, how quick, safety, portable dismouting is carried out to shaft class part, be the important problem that the urgent need to solve that faces in the engineering reality.

The existing shaft pulling device has the advantages that in the process of screw rod displacement, the nut can generate large pressure, the pressure can increase the friction force in the working process of the nut, and the disassembly is laborious, so that the special shaft pulling device needs to be designed to solve the problems.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a special shaft puller.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a special axle ware of pulling out, includes main lead screw, bearing and work piece, the bottom welding of main lead screw has the connecting screw, and has seted up the external screw thread on the lateral wall of connecting screw, the inside joint of work piece has the round pin axle, and has seted up the internal thread on the inside wall of round pin axle, the connecting screw is threaded connection through external screw thread and internal thread and round pin axle.

Furthermore, the outer wall of one side of the bearing is provided with a bearing upper cover, and the bearing upper cover is distributed in a 7-shaped structure.

Furthermore, a bearing lower cover is arranged on the outer wall of the other side, away from the bearing upper cover, of the bearing, and an outer pipe is welded on the outer wall of the other side, away from the bearing, of the bearing lower cover.

Furthermore, a check ring is welded on the outer wall of one side of the upper bearing cover, an opening is formed in the outer wall of one side of the check ring, and the outer pipe penetrates through the opening.

Furthermore, a nut is welded on the outer wall of the bearing upper cover, which is far away from the other side of the bearing, the nut is in threaded connection with the outer portion of the main screw rod, and the main screw rod is located inside the outer pipe.

The utility model has the advantages that:

1. through the bearing, the upper bearing cover, the lower bearing cover and the retainer ring, the nut generates larger pressure in the moving process of the main screw rod, and the bearing can move along with the nut under the action of the pressure, so that the aim of labor-saving and quick detachment is fulfilled by friction force in the working process of the nut.

2. Through the main lead screw, the connecting lead screw, the external thread, the pin shaft and the internal thread which are arranged, the main lead screw can be connected with the pin shaft through the external thread on the connecting lead screw and the internal thread on the pin shaft, so that when the nut is screwed, the main lead screw and the connecting lead screw can drive the pin shaft to leave the inside of a workpiece.

Drawings

Fig. 1 is a schematic perspective view of a special shaft puller according to the present invention;

fig. 2 is a schematic view of an internal structure of a special shaft puller according to the present invention;

fig. 3 is a schematic top view of the special shaft puller according to the present invention;

fig. 4 is a schematic view of a bearing structure of the special shaft puller provided by the present invention.

In the figure: the device comprises a main screw rod 1, a bearing upper cover 2, a bearing lower cover 3, a bearing 4, a retainer ring 5, an opening 6, a nut 7, a workpiece 8, a pin shaft 9, an internal thread 10, a connecting screw rod 11, an external pipe 12 and an external thread 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1 to 4 simultaneously, a special shaft puller comprises a main lead screw 1, a bearing 4 and a workpiece 8, wherein a connecting lead screw 11 is welded at the bottom end of the main lead screw 1, an external thread 13 is arranged on the outer side wall of the connecting lead screw 11, a pin shaft 9 is clamped inside the workpiece 8, an internal thread 10 is arranged on the inner side wall of the pin shaft 9, the connecting lead screw 11 is in threaded connection with the pin shaft 9 through the external thread 13 and the internal thread 10, and the main lead screw 1 is screwed, so that the connecting lead screw 11 can be driven to be screwed to the inside of the pin shaft 9 through the matching of the external thread 13 and the internal thread.

Further, be provided with bearing upper cover 2 on the outer wall of bearing 4 one side, and bearing upper cover 2 is "7" font structure and distributes, can protect bearing 4 to what connect is more firm.

Further, bearing 4 is provided with bearing lower cover 3 on keeping away from the outer wall of 2 opposite sides of bearing upper cover, and the welding has outer tube 12 on the outer wall of bearing 4 opposite sides is kept away from to bearing lower cover 3, and outer tube 12 conveniently carries to have the effect that has the protection to main lead screw 1.

Furthermore, the outer wall of one side of the bearing upper cover 2 is welded with a check ring 5, an opening 6 is formed in the outer wall of one side of the check ring 5, the outer pipe 12 penetrates through the opening 6, and the bearing upper cover is reasonable in structure and novel in design.

Furthermore, the nut 7 is welded on the outer wall of the bearing upper cover 2, which is far away from the other side of the bearing 4, the nut 7 is in threaded connection with the outer portion of the main screw rod 1, the main screw rod 1 is located inside the outer pipe 12, and the nut 7 can be screwed to enable the nut 7 to be in threaded connection with the main screw rod 1, so that the main screw rod 1, the connecting screw rod 11 and the pin shaft 9 are driven to be gradually far away from the inner portion of the workpiece.

The working principle is as follows: when this special shaft puller uses, at first twist and move main lead screw 1, make the inside of the round pin axle 9 of the connecting end connection lead screw 11 precession of main lead screw 1, make main lead screw 1 through the cooperation screw thread between the external screw thread of connecting lead screw 11 and the internal thread of round pin axle 9 and the connection of round pin axle, then swivel nut 7, make nut 7 drive main lead screw 1 and connect lead screw 11 to keep away from the work piece, thereby make connection lead screw 11 drive round pin axle 9 and keep away from the inside of work piece 8 gradually, at the in-process that main lead screw 1 removed, nut 7 produces great pressure, and bearing 4 can remove along with nut 7 under the effect of pressure, thereby the frictional force in the nut 7 course of operation, reach laborsaving quick dismantlement's purpose.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a special use pulls out a ware, includes main lead screw (1), bearing (4) and work piece (8), its characterized in that, the bottom welding of main lead screw (1) has connecting screw (11), and has seted up external screw thread (13) on the lateral wall of connecting screw (11), the inside joint of work piece (8) has round pin axle (9), and sets up on the inside wall of round pin axle (9) internal thread (10), connecting screw (11) are threaded connection through external screw thread (13) and internal thread (10) and round pin axle (9).

2. The special shaft puller according to claim 1, wherein a bearing upper cover (2) is arranged on the outer wall of one side of the bearing (4), and the bearing upper covers (2) are distributed in a 7-shaped structure.

3. The special shaft puller according to claim 2, wherein a lower bearing cover (3) is arranged on the outer wall of the bearing (4) on the other side away from the upper bearing cover (2), and an outer pipe (12) is welded on the outer wall of the bearing lower cover (3) on the other side away from the bearing (4).

4. The special shaft puller according to claim 2, wherein a retainer ring (5) is welded to the outer wall of one side of the bearing upper cover (2), an opening (6) is formed in the outer wall of one side of the retainer ring (5), and the outer pipe (12) penetrates through the opening (6).

5. The special shaft puller according to claim 2, wherein a nut (7) is welded on the outer wall of the other side of the bearing upper cover (2) far away from the bearing (4), the nut (7) is in threaded connection with the outside of the main screw rod (1), and the main screw rod (1) is located inside the outer pipe (12).