Mounting and dismounting tool for circlip for shaft

Abstract

The utility model relates to a tool for mounting and dismounting a circlip for a shaft. At present, a pair of conventional clamp spring pliers has certain limitation when being used for disassembling the circlip for the shaft, and the circlip for the shaft with a larger size cannot be disassembled. The mounting and dismounting tool for the circlip for the shaft comprises the circlip for the shaft (1), two clamp holes (2) are symmetrically formed in the circlip for the shaft, a transverse stretching insertion rod (3) is inserted into the clamp holes, the two ends of the transverse stretching insertion rod are of threaded structures (3-1), the middle of the transverse stretching insertion rod is of a cylindrical structure (3-2), and the transverse stretching insertion rod is of a metal rod piece structure. And the diameter of the transverse stretching insertion rod is smaller than that of the clamp hole, so that the transverse stretching insertion rod can be smoothly inserted into the clamp hole in the circlip for the shaft. The utility model is applied to the field of machinery.

Description

Technical Field

[0001] The utility model relates to a tool for installing and removing an elastic retaining ring for a shaft. Background Art

[0002] Shaft circlips, also known as shaft retaining clips, are installed on grooved shafts and can fix the axial movement of parts. The inner diameter of this type of retaining ring is slightly smaller than the diameter of the assembled shaft. When installing and removing shaft circlips, circlip pliers are usually used to insert the jaws of the circlip pliers into the pliers hole of the retaining ring. The purpose of this is to expand the retaining ring evenly so that it can be placed in the pre-machined shaft groove. At present, the commonly used circlip pliers have specifications of 5″ (total length 125mm) and 7″ (total length 175mm). Due to size restrictions, conventional oil production circlip pliers have certain limitations when installing and removing shaft circlips, and cannot install and remove shaft circlips of larger sizes. Summary of the invention

[0003] The utility model aims to provide a tool for installing and removing an elastic retaining ring for a shaft.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A tool for installing and removing an elastic retaining ring for a shaft, which comprises: an elastic retaining ring for a shaft, wherein two clamp holes are symmetrically provided on the elastic retaining ring for the shaft, a transverse stretching rod is inserted into the clamp hole, both ends of the transverse stretching rod are threaded structures, and the middle is a columnar structure, a nut A and a nut B are respectively screwed into the threaded structure on the transverse stretching rod, and the nut A and the nut B are respectively integrally connected with a metal pull ring, and a pull rope assembly is hung on the two metal pull rings.

[0006] The shaft uses an elastic retaining ring to install the removal tool, and the pull rope assembly is composed of a pull rope and a spring buckle. The two ends of the pull rope are annular rope body structures, and the annular rope body structure is inserted into the spring buckle.

[0007] The shaft elastic retaining ring is used to install and remove the tool, and a rectangular notch structure is provided in the middle section of the columnar structure of the transverse stretching rod, and the length of the rectangular notch is greater than the thickness of the shaft elastic retaining ring.

[0008] The shaft uses an elastic retaining ring to install the removal tool, and the diameter of the transverse stretching rod is smaller than the diameter of the clamp hole.

[0009] The shaft is installed with a removal tool using an elastic retaining ring, and the nut A and the nut B have the same structure.

[0010] The beneficial effects achieved by the utility model are:

[0011] 1. When disassembling the elastic retaining ring of the utility model, the transverse stretching rod is inserted into the clamp hole on the shaft elastic retaining ring, the nut A and the nut B are screwed into the threaded structures at both ends of the transverse stretching rod, the spring buckle on the draw rope assembly is hung on the metal draw ring, the draw ropes on both sides of the shaft elastic retaining ring are pulled horizontally, and the draw ropes on both sides are pulled horizontally in opposite directions, thereby increasing the distance between the movable openings of the shaft elastic retaining ring and evenly applying force, and the shaft elastic retaining ring is removed from the shaft body. The above structure can be used to install and remove shaft elastic retaining rings of different sizes.

[0012] 2. The utility model has a simple structure and is easy to operate. A rectangular notch structure is provided in the middle section of the columnar structure of the transverse stretching rod. When the transverse stretching rod is inserted into the clamp hole, the rectangular notch structure on the transverse stretching rod is inserted into the hole surface of the clamp hole, thereby preventing the transverse stretching rod from sliding when the transverse stretching rod is pulled, thereby limiting the transverse stretching rod and ensuring stability when installing and disassembling the elastic retaining ring for the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0015] Attached Figure 2 It is a schematic diagram of the use structure of the utility model.

[0016] Attached Figure 3 It is a schematic diagram of the connection between the nut and the metal pull ring.

[0017] Attached Figure 4 It is a structural schematic diagram of a transversely stretched plug.

[0018] Attached Figure 5 It is a schematic diagram of the structure of a shaft circlip.

[0019] In the figure: 1. elastic retaining ring for shaft, 2. clamp hole, 3. transverse stretching rod, 3-1. threaded structure, 3-2. columnar structure, 4. nut A, 5. nut B, 6. metal pull ring, 7. pull rope, 8. spring buckle, 9. rectangular notch structure. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Example 1

[0021] A tool for installing and removing an elastic retaining ring for a shaft, which comprises: an elastic retaining ring 1 for a shaft, wherein two clamp holes 2 are symmetrically provided on the elastic retaining ring for the shaft, and a transverse stretching rod 3 is inserted into the clamp holes. Both ends of the transverse stretching rod are threaded structures 3-1, and the middle is a columnar structure 3-2. The transverse stretching rod is a metal rod structure, and the diameter of the transverse stretching rod is smaller than the diameter of the clamp holes, so that the transverse stretching rod can be smoothly inserted into the clamp holes on the elastic retaining ring for the shaft.

[0022] Nut A4 and nut B5 are screwed into the threaded structure on the transverse stretching rod, respectively. Metal pull rings 6 are integrally connected to the nut A and the nut B, respectively. Pull rope assemblies are hung on the two metal pull rings. The nut A and the nut B have the same structure. The metal tension spring is fixedly connected to the planes of the nut A and the nut B by welding to form an integral structure, and the screw direction of the metal pull ring is the same as that of the nut A. The maximum size of the nut A and the nut B is larger than the diameter of the jaws. Nut A and nut B on the transverse stretching rod mainly play a role of limiting the transverse stretching rod, and at the same time can prevent the transverse stretching rod from slipping out of the jaws. Example 2

[0023] The shaft elastic retaining ring installation and removal tool, the pull rope assembly is composed of a pull rope 7 and a spring buckle 8, the two ends of the pull rope are annular rope structures, and the annular rope structure is inserted into the spring buckle. The spring buckle is a metal buckle, and one end of the spring buckle is a large-diameter ring structure, and the other end is a small-diameter ring structure, and the pull rope and the metal pull ring are connected respectively through the spring buckle.

[0024] The shaft circlip installation and removal tool is provided with a rectangular notch structure 9 in the middle section of the columnar structure of the transverse stretching rod, and the length of the rectangular notch is greater than the thickness of the shaft circlip. When the shaft circlip is removed from the shaft groove, the transverse stretching rod is first inserted into the clamp hole on the shaft circlip. After the transverse stretching rod is inserted into the clamp hole, the nut A and the nut B are respectively screwed into the threaded structures at both ends of the transverse stretching rod, so that the metal pull rings on the nut A and the nut B are in the same direction, the spring buckle on the pull rope assembly is hung in the metal pull ring, and then the pull ropes on both sides of the shaft circlip are pulled horizontally, and the pull ropes on both sides are pulled horizontally in opposite directions, so as to increase the distance at the movable opening of the shaft circlip, and remove the shaft circlip from the shaft body. The shaft circlips of different sizes can be removed by the above structure.

Claims

1. A shaft circlip installation and removal tool, comprising: include: An elastic retaining ring for a shaft, wherein two clamp holes are symmetrically provided on the elastic retaining ring for a shaft, and wherein a transverse stretching rod is inserted into the clamp hole, wherein both ends of the transverse stretching rod are threaded structures, and the middle is a columnar structure, wherein a nut A and a nut B are respectively screwed into the threaded structures on the transverse stretching rod, wherein the nut A and the nut B are respectively integrally connected with metal pull rings, and pull rope assemblies are hung on the two metal pull rings.

2. The shaft circlip installation and removal tool according to claim 1, Its characteristics are: The pull rope assembly is composed of a pull rope and a spring buckle. The two ends of the pull rope are annular rope body structures, and the annular rope body structure is inserted into the spring buckle.

3. The shaft circlip installation and removal tool according to claim 1, Its characteristics are: A rectangular notch structure is provided in the middle section of the columnar structure of the transversely stretched plug rod, and the length of the rectangular notch is greater than the thickness of the elastic retaining ring for the shaft.

4. The shaft circlip installation and removal tool according to claim 3, Its characteristics are: The diameter of the transverse stretching rod is smaller than the diameter of the clamp hole.

5. The shaft circlip installation and removal tool according to claim 1, Its characteristics are: The nut A and the nut B have the same structure.

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