Large clamp spring disassembling and assembling tool

Abstract

The utility model discloses a large-scale snap spring dismounting tool, which comprises a bottom plate, a guide cylinder, an adjusting nut, an ejector rod, an adjusting bolt, two swing rods and two support rods, the guide cylinder and the adjusting nut are fixed on the bottom plate and are coaxial with each other, the ejector rod is sleeved inside the guide cylinder in a sliding manner, the two swing rods are symmetrically arranged on two sides of the axis of the guide cylinder, and the adjusting bolt is arranged on the guide cylinder. One ends of the two swing rods are rotationally connected with the bottom plate, the other ends of the two swing rods clamp the two ends of the clamping spring respectively, one ends of the two supporting rods are hinged to the end, away from the adjusting nut, of the ejector rod, and the other ends of the two supporting rods are hinged to the middles of the two swing rods respectively; the adjusting bolt is screwed into the adjusting nut, and the end of the adjusting bolt is opposite to the ejector rod. The push force of the bolt is transmitted to the two swing rods through the ejector rod and the two supporting rods, the two swing rods are used for expanding the opening of the clamp spring, and the disassembly and assembly difficulty of the clamp spring is greatly reduced. By utilizing the device, the labor intensity of workers can be greatly reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a tool for quickly disassembling and assembling large-sized retaining rings (also called retaining rings) in mechanical equipment, and belongs to the technical field of workshop tools. Background Art

[0002] Many mechanical equipment use circlips to fix the parts mounted on the shaft. The circlip is a C-shaped structure, and its inner edge is clamped in the annular groove on the shaft to limit the axial position of the parts mounted on the shaft. When assembling or disassembling equipment, you will face the problem of disassembling and assembling circlips. It is relatively easy to disassemble and assemble small circlips, but it is more difficult to disassemble and assemble large circlips. For example, when assembling the drum-shaped gear shaft of the finishing mill, it is necessary to disassemble and assemble the external gear sleeves on both sides. The external gear sleeves are fixed by circlips. The material of the circlip is 65Mn, and the size of the circlip is Φ465mm in outer diameter, Φ415mm in inner diameter, and 12mm in thickness. Due to the high hardness and large size of the circlip, and the lack of special tools, it is very difficult to assemble and disassemble the circlip with the help of general tools, which not only increases the labor intensity of workers, but also reduces work efficiency. Therefore, it is very necessary to design a disassembly tool suitable for large circlips. Utility Model Content

[0003] The utility model aims to provide a large-scale clamp spring disassembly and assembly tool to reduce the labor intensity of workers and improve work efficiency in view of the drawbacks of the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A large-scale retaining ring disassembly and assembly tool, which includes a base plate, a guide cylinder, an adjusting nut, a push rod, an adjusting bolt, two rocker arms and two struts. The guide cylinder and the adjusting nut are fixed on the plate surface of the base plate and are coaxial with each other. The push rod is slidably mounted inside the guide cylinder. The two rocker arms are symmetrically arranged on both sides of the axis of the guide cylinder. One end of the two rocker arms is rotatably connected to the base plate through a rotating shaft perpendicular to the base plate, and the other ends respectively clamp the two ends of the retaining ring. One end of the two struts is hinged to one end of the push rod away from the adjusting nut, and the other ends are respectively hinged to the middle parts of the two rocker arms; the adjusting bolt is screwed into the adjusting nut, and the end of the adjusting bolt is opposite to the push rod.

[0006] In the above-mentioned large-scale retaining ring disassembly and assembly tool, a top block corresponding to the end of the adjusting bolt is fixed to one end of the push rod close to the adjusting nut.

[0007] The above-mentioned large-scale retaining ring disassembly and assembly tool, the swing arm is a rectangular plate, and its end away from the bottom plate becomes narrower, and the support rod is a rectangular steel plate with a thickness of 20mm.

[0008] The above-mentioned large retaining ring disassembly and assembly tool, the rotating shaft between the rocker arm and the base plate, and the hinge shaft between the support rod, the top rod and the rocker arm are all M10×60 high-strength bolts, the adjusting nut is an M16 nut, and the adjusting bolt is an M16×150 full-thread bolt.

[0009] In the above-mentioned large retaining ring disassembly and assembly tool, the guide cylinder and the bottom plate, the top block and the top rod, and the adjusting nut and the bottom plate are all connected by welding.

[0010] The above-mentioned large-scale retaining ring disassembly and assembly tool, the bottom plate is a T-shaped plate.

[0011] The utility model transmits the thrust of the bolt to the two swing rods through the push rod and the two support rods, and uses the two swing rods to expand the opening of the circlip, so as to facilitate the removal of the circlip from the annular groove on the shaft or move the circlip to the annular groove for installation, which greatly reduces the difficulty of disassembling and assembling the circlip. The utility model can greatly reduce the labor intensity of workers and improve work efficiency. In addition, the utility model also has the advantages of simple structure, reasonable design, low cost, easy operation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 It is a side view of the utility model.

[0015] The numbers in the figure are as follows: 1. base plate, 2. rocker arm, 3. support rod, 4. push rod, 5. guide cylinder, 6. push block, 7. adjusting nut, 8. adjusting bolt. DETAILED DESCRIPTION

[0016] The utility model provides a tool for quickly disassembling and assembling a large retaining spring. The tool can be used to quickly and effectively disassemble and assemble a drum-shaped toothed shaft retaining spring of a finishing mill, thereby solving the problems existing in the background technology.

[0017] See also Figure 1 and Figure 2 The utility model mainly includes a bottom plate 1, two swing rods 2, two support rods 3, a top rod 4, a guide cylinder 5, a top block 6, an adjusting nut 7 and an adjusting bolt 8.

[0018] The two swing rods 2 are rectangular plates, and the ends thereof away from the bottom plate 1 are narrowed and can be inserted into the inner part of the clamping ring. The two support rods 3 are rectangular plates, and the material is selected to be 20mm thick steel plate.

[0019] The guide cylinder 5 and the adjusting nut 7 are coaxial with each other and are fixed on the base plate 1. The two rocker arms 2 are symmetrically arranged on both sides of the axis of the guide cylinder 5 and the adjusting nut 7. One end of the two rocker arms 2 is rotatably connected to the base plate 1 through a rotating shaft perpendicular to the base plate 1, and the other ends respectively clamp the two ends of the retaining spring. The push rod 4 is slidably sleeved inside the guide cylinder 5 and can slide along the axial direction of the guide cylinder 5. One end of the two support rods 3 is hinged to the end of the push rod 4 away from the adjusting nut 7, and the other ends are respectively hinged to the middle parts of the two rocker arms 2; the end of the push rod 4 close to the adjusting nut 7 is fixedly connected to the top block 6; the adjusting bolt 8 is screwed into the adjusting nut 7, and the end of the adjusting bolt 8 is pressed against the top block 6.

[0020] The rotating shaft between the swing arm 2 and the bottom plate 1 can be made of M10×60 high-strength bolts, and the hinge shaft between the support rod 3, the top rod 4 and the swing arm 2 can also be made of M10×60 high-strength bolts. The guide cylinder 5 is welded to the bottom plate 1, the top block 6 is welded to the end of the top rod 4, and the adjusting nut 7 is welded to the bottom plate 1.

[0021] The bottom plate 1 is a T-shaped plate, the adjusting nut 7 is an M16 common nut, and the adjusting bolt 8 is an M16×150 full-thread bolt.

[0022] When the utility model is used to disassemble and assemble the retaining spring, the ends of the two swing rods 2 away from the bottom plate 1 are respectively clamped to the two ends of the retaining spring, and the adjusting bolt 8 is rotated. The adjusting bolt 8 moves axially and pushes the two swing rods 2 to rotate through the top block 6, the top rod 4 and the two support rods 3 in sequence, so that the opening between the two swing rods 2 becomes larger, thereby enlarging the opening of the retaining spring. When the retaining spring is removed from the shaft or moved to the installation position, the adjusting bolt 8 is rotated in the opposite direction, and the retaining spring returns to its original state by its own elastic force, thereby realizing the rapid disassembly and assembly of the retaining spring.

[0023] The beneficial effects of the utility model are: the large-scale retaining spring can be quickly and effectively disassembled and assembled, the structure is simple, the design is reasonable, the cost is low, the time and labor are saved, and the use is convenient.

Claims

1. A large-scale retaining spring disassembly and assembly tool, characterized in that: The invention comprises a base plate (1), a guide cylinder (5), an adjusting nut (7), a push rod (4), an adjusting bolt (8), two swing rods (2) and two support rods (3). The guide cylinder (5) and the adjusting nut (7) are fixed on the plate surface of the base plate (1) and are coaxial with each other. The push rod (4) is slidably sleeved inside the guide cylinder (5). The two swing rods (2) are symmetrically arranged on both sides of the axis of the guide cylinder (5). One end of the two swing rods (2) is rotatably connected to the base plate (1) through a rotating shaft perpendicular to the base plate (1), and the other end clamps the two ends of the retaining spring respectively. One end of the two support rods (3) is hinged to one end of the push rod (4) away from the adjusting nut (7), and the other end is hinged to the middle part of the two swing rods (2). The adjusting bolt (8) is screwed into the adjusting nut (7), and the end of the adjusting bolt (8) is opposite to the push rod (4).

2. A large-scale retaining spring disassembly and assembly tool according to claim 1, characterized in that: A top block (6) corresponding to the end of the adjusting bolt (8) is fixed to one end of the top rod (4) close to the adjusting nut (7).

3. A large-scale retaining spring disassembly and assembly tool according to claim 1 or 2, characterized in that: The swing rod (2) is a rectangular plate, and its end away from the bottom plate (1) becomes narrower. The support rod (3) is a rectangular steel plate with a thickness of 20 mm.

4. A large-scale retaining spring disassembly and assembly tool according to claim 3, characterized in that: The rotating shaft between the swing arm (2) and the bottom plate (1), and the hinge shaft between the support rod (3), the top rod (4) and the swing arm (2) are all M10×60 high-strength bolts, the adjusting nut (7) is an M16 nut, and the adjusting bolt (8) is an M16×150 full-thread bolt.

5. A large-scale retaining spring disassembly and assembly tool according to claim 2, characterized in that: The guide cylinder (5) and the bottom plate (1), the top block (6) and the top rod (4), and the adjusting nut (7) and the bottom plate (1) are all connected by welding.

6. A large-scale retaining spring disassembly and assembly tool according to claim 5, characterized in that: The bottom plate (1) is a T-shaped plate.

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