Special tool for mounting shock-absorbing rubber sleeve of coupling

Abstract

The utility model relates to a special tool for installing a coupling damping rubber sleeve, and belongs to the technical field of equipment overhaul and maintenance in the metallurgical industry. According to the technical scheme, the tool comprises a long-rod bolt (1), a pressing plate (2), a positioning cylinder (3) and a tightening nut (4), one end of the positioning cylinder (3) is of a closed structure, the closed end of the positioning cylinder (3) and the pressing plate (2) are each provided with a center hole matched with the long-rod bolt (1), the long-rod bolt (1) sequentially penetrates through the pressing plate (2) and the positioning cylinder (3), then the tightening nut (4) is screwed on the long-rod bolt (1), and the diameter of the long-rod bolt (1) is matched with the inner diameter of a damping rubber sleeve (5); the pressing plate (2) is a circular steel plate, and the diameter of the pressing plate is larger than that of the damping rubber sleeve (5). The diameter of the positioning cylinder (3) is larger than that of a bolt hole (7) in the coupler (6). The shock-absorbing rubber sleeve has the advantages that the shock-absorbing rubber sleeve can be prevented from being damaged or destroyed in the installation process, maintenance efficiency is improved, and the shock-absorbing rubber sleeve is simple in structure, light and convenient to carry and high in applicability.

Description

Technical Field

[0001] This utility model relates to a special tool for installing vibration damping rubber sleeves of couplings, belonging to the field of equipment inspection and maintenance technology in the metallurgical industry. Background Technology

[0002] Cooling towers, water pumps, and other equipment used in the steel industry are generally equipped with coupling damping bushings. After each equipment maintenance, the damping bushings need to be inserted into the coupling bolt holes, and then the two halves of the coupling are tightened in place with bolts to ensure a certain degree of shock absorption and buffering effect when the rotating shaft rotates at high speed.

[0003] Because the vibration damping sleeve is made of rubber and has a certain degree of flexibility, it requires a relatively tight fit with the coupling bolt holes, making installation difficult each time. Usually, a hand hammer is used to tap the vibration damping sleeve into the bolt holes, but due to uneven force and high frictional resistance, this often damages the sleeve, worsening the vibration damping effect and affecting the stable operation of the equipment.

[0004] Therefore, a special tool for installing coupling damping bushings needs to be designed to ensure that the damping bushings can be installed intact and efficiently during the maintenance of equipment such as cooling towers and water pumps, and to avoid damage or destruction of the damping bushings. Utility Model Content

[0005] The purpose of this utility model is to provide a special tool for installing vibration damping rubber sleeves of couplings, which can avoid damage or destruction of the vibration damping rubber sleeves during the installation process, improve maintenance efficiency, and solve the problems existing in the background art.

[0006] The technical solution of this utility model is:

[0007] A special tool for installing a coupling damping rubber sleeve includes a long bolt, a pressure plate, a positioning cylinder, and a tightening nut. One end of the positioning cylinder is closed. Both the closed end of the positioning cylinder and the pressure plate are provided with a center hole that matches the long bolt. The long bolt passes through the pressure plate and the positioning cylinder in sequence and is then tightened with the tightening nut.

[0008] The diameter of the long bolt matches the inner diameter of the shock-absorbing rubber sleeve.

[0009] The pressure plate is a circular steel plate with a diameter larger than that of the shock-absorbing rubber sleeve.

[0010] The diameter of the positioning cylinder is larger than the diameter of the bolt holes on the coupling.

[0011] The advantages of this utility model are: it can avoid damage or destruction of the shock-absorbing rubber sleeve during installation, improve maintenance efficiency, has a simple structure, is easy to carry, and has strong applicability. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the usage state of this utility model;

[0014] In the diagram: 1. Long rod bolt, 2. Pressure plate, 3. Positioning cylinder, 4. Tightening nut, 5. Shock-absorbing rubber sleeve, 6. Coupling, 7. Bolt hole. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and examples.

[0016] See attached document Figure 1 , 2 A special tool for installing a coupling damping rubber sleeve includes a long bolt 1, a pressure plate 2, a positioning cylinder 3 and a tightening nut 4. One end of the positioning cylinder 3 is closed. Both the closed end of the positioning cylinder 3 and the pressure plate 2 are provided with a center hole that matches the long bolt 1. The long bolt 1 passes through the pressure plate 2 and the positioning cylinder 3 in sequence and is then tightened with the tightening nut 4.

[0017] In this embodiment, refer to the appendix Figure 1 , 2 This special tool includes a long bolt 1, a pressure plate 2, a positioning cylinder 3, and a tightening nut 4, wherein:

[0018] The long bolt 1 is 300-350mm long, with a thread length of 150mm, and is made of 304 stainless steel. Its diameter is 2mm smaller than the inner diameter of the shock-absorbing rubber sleeve 5.

[0019] The pressure plate 2 is a 50mm diameter, 10mm thick steel plate made of 45# steel, and the inner diameter of the center opening is the same as the diameter of the long bolt 1.

[0020] Positioning cylinder 3 is made of carbon steel pipe with a diameter of DN50. One end is welded with an end plate for sealing. The opening diameter is 2mm larger than that of long rod bolt 1.

[0021] Tightening nut 4, matching the diameter of long rod bolt 1, made of stainless steel 304.

[0022] The usage process of this utility model is as follows:

[0023] See attached document Figure 2 During assembly, first apply a layer of grease to the bolt holes 7 of the coupling 6 for lubrication. Then, insert one end of the shock-absorbing rubber sleeve 5 into the bolt hole 7 of the coupling 6. The other end of the shock-absorbing rubber sleeve 5 is tightened with a long bolt 1 and a pressure plate 2. The other end of the long bolt 1 passes through the bolt hole 7 of the coupling 6 and is positioned by a positioning sleeve 3. After positioning, tighten the tension nut 4. As the tension nut 4 applies force, the pressure plate 2 evenly pushes the shock-absorbing rubber sleeve 5 into the bolt hole 7 of the coupling 6 until it is fully installed. The entire process will not damage the shock-absorbing rubber sleeve 5.

Claims

1. A special tool for installing a vibration damper sleeve of a coupling, characterized in that: It includes a long bolt (1), a pressure plate (2), a positioning cylinder (3) and a tightening nut (4). One end of the positioning cylinder (3) is closed. The closed end of the positioning cylinder (3) and the pressure plate (2) are provided with a central hole that matches the long bolt (1). The long bolt (1) passes through the pressure plate (2) and the positioning cylinder (3) in sequence and then the tightening nut (4) is screwed on.

2. The special tool for mounting the shock absorbing rubber sleeve of the coupling according to claim 1, characterized in that: The diameter of the long bolt (1) matches the inner diameter of the shock-absorbing rubber sleeve (5).

3. The special tool for mounting the shock absorbing rubber sleeve of the coupling according to claim 1, characterized in that: The pressure plate (2) is a circular steel plate with a diameter larger than that of the shock-absorbing rubber sleeve (5).

4. The special tool for mounting the shock absorbing rubber sleeve of the coupling according to claim 1, characterized in that: The diameter of the positioning cylinder (3) is larger than the diameter of the bolt hole (7) on the coupling (6).

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