Hydraulic mounting tool for motor coupler

Abstract

The utility model provides a hydraulic mounting tool for a motor coupler, which comprises two groups of support plates which are respectively arranged at two ends of a motor, a plurality of through holes matched with connecting rods are arranged on the support plates, the connecting rods are arranged around the circumference of the motor, two ends of each connecting rod are provided with external threads matched with nuts, and the nuts are arranged on one sides of the support plates far away from the motor. A hydraulic jack is arranged on one side, close to the motor shaft, of the supporting plate, and the hydraulic jack pressurizes a coupler which is arranged on the motor shaft in a sleeving mode. According to the tool, external pressure press-in of the motor coupler is achieved, pressure is evenly applied, simultaneous knocking by multiple persons is not needed, manual knocking-in installation is replaced, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of coupling installation, in particular to a hydraulic installation tool for a motor coupling. Background Art

[0002] The motor coupling is a mechanical part that connects the driving shaft and the driven shaft to rotate together to transmit torque. It is connected to the motor main shaft as a shaft hole transition fit. The coupling needs to be disassembled and reinstalled during the disassembly and overhaul of the motor. The existing installation method of the coupling is still generally the original hot-fitting, and two people use copper rods to knock on both sides of the coupling body to apply uniform external force inside it and slowly insert the main shaft.

[0003] The above operation mode has the following disadvantages:

[0004] 1. High labor cost and low work efficiency. The coupling is an important component that connects the driving shaft and the driven shaft of the motor. It has very tight requirements for matching. Therefore, the friction resistance is very large when the coupling is assembled with the motor shaft. It takes a long time to hammer it in manually with a copper rod. At the same time, in order to ensure uniform knocking force, two people often have to knock vigorously in diagonal directions to successfully insert the coupling into the motor shaft. This results in high labor costs during assembly and very low work efficiency.

[0005] 2. Damage to equipment. Long-term use of the hammer-in method to install couplings may cause local damage to couplings made of brittle materials such as cast iron and hardened steel casting alloys, and may also damage the mating surface of the coupling. Summary of the invention

[0006] The technical problem to be solved by the utility model is to provide a hydraulic installation tool for a motor coupling, which replaces manual knocking installation and improves the installation efficiency.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a hydraulic installation tool for an electric motor coupling, comprising two groups of support plates, which are respectively arranged at the two ends of the motor, and the support plates are provided with a plurality of through holes cooperating with connecting rods. The connecting rods are arranged in multiple groups around the circumference of the motor, and both ends of the connecting rods are provided with external threads cooperating with nuts. The nuts are arranged on the side of the support plate away from the motor, and a hydraulic jack is provided on the side of the support plate close to the motor shaft. The hydraulic jack pressurizes the coupling that is tried on the motor shaft.

[0008] In a preferred solution, a pad is provided between the hydraulic head and the coupling of the hydraulic jack.

[0009] In a preferred solution, the connecting rod is arranged close to the outer side of the motor.

[0010] In a preferred solution, a thickened boss is provided at the center of one side of the support plate away from the motor, and a plurality of reinforcing rib plates are arranged around the thickened boss.

[0011] The utility model provides a hydraulic installation tool for a motor coupling, which has the following beneficial effects:

[0012] 1. Save labor costs, reduce operating difficulty, and improve work efficiency. Use external pressure instead of manpower to knock in the copper rod, reducing labor costs; even pressure does not require multiple people to knock at the same time.

[0013] 2. Safe and reliable, protecting equipment safety. The external hydraulic method replaces manual knocking, reducing the damage to the coupling; the uniform pressure also avoids the shaft hole axis deviation during insertion, which causes the coupling to scratch the motor shaft.

[0014] Split design, easy to assemble and disassemble.

[0015] 3. The various parts of this tool can be disassembled and assembled for easy on-site use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is an exploded view of the utility model;

[0019] Figure 3 It is an exploded view of the utility model from another angle;

[0020] In the figure: support plate 1, motor 2, connecting rod 3, nut 4, hydraulic jack 5, coupling 6, pad 7, through hole 101, thickened boss 102, and reinforcing rib plate 103. DETAILED DESCRIPTION

[0021] like Figures 1 to 3 As shown, a hydraulic installation tool for a motor coupling includes two groups of support plates 1, which are respectively arranged at the two ends of a motor 2. The support plates 1 are provided with a plurality of through holes 101 that cooperate with connecting rods 3. Four groups of connecting rods 3 are provided. The connecting rods 3 are arranged close to the outside of the motor 2. Both ends of the connecting rods 3 are provided with external threads that cooperate with nuts 4. The nuts 4 are arranged on the side of the support plates 1 away from the motor 2. By tightening the nuts 4, the two groups of support plates 1 are connected and the distance between the two groups of support plates 1 can be adjusted. The connecting rods 3 can prevent the support plates 1 from moving randomly along the radial direction of the motor 2. The connecting rods 3 connect the two groups of support plates 1 on the one hand, and on the other hand, they can limit the entire tool and install it on the outside of the motor.

[0022] A hydraulic jack 5 is provided on the support plate 1 close to the motor shaft. The hydraulic jack 5 is fixed on the inner side of the support plate 1. The hydraulic jack 5 applies pressure to the coupling 6 which is fitted on the motor shaft.

[0023] During specific use, a pad 7 is provided between the hydraulic head of the hydraulic jack 5 and the coupling 6. The pad 7 is provided to ensure contact with the coupling 6 and reduce damage to the coupling 6.

[0024] Preferably, a thickened boss 102 is provided at the center of one side of the support plate 1 away from the motor 2, and a plurality of reinforcing ribs 103 are provided around the thickened boss 102. The support strength of the support plate 1 is improved by providing the thickened boss 102 and the reinforcing ribs 103.

[0025] Here’s how it works:

[0026] During specific use, one group of support plates 1 is arranged at the tail end of the motor 2, and after one end of the connecting rod 3 passes through the through hole 101 on the support plate 1, the nut 4 is tightened to fix it. After the coupling 6 is heated in an oven, it is manually tried on the motor shaft, and then another group of support plates 1 is passed through the connecting rod 3, the position of the group of support plates 1 is moved, and the pad 7 is clamped between the hydraulic head of the hydraulic jack 5 and the coupling 6, and the nuts 4 corresponding to the group of support plates 1 are tightened to complete the fixation of the two groups of support plates 1. The hydraulic head of the hydraulic jack 5 is pressed on the coupling through the pad 7, and the hydraulic jack 5 is pressurized. Since the distance between the two support plates 1 is fixed, the hydraulic jack 5 is pressurized forward, and the coupling 6 is subjected to an axial pushing force, which gradually pushes the coupling 6 to the position before disassembly.

[0027] The advantages of this tool are as follows:

[0028] 1. Save labor costs, reduce operating difficulty, and improve work efficiency. Use external pressure instead of manpower to knock in the copper rod, reducing labor costs; even pressure does not require multiple people to knock at the same time.

[0029] 2. Safe and reliable, protecting equipment safety. The external hydraulic method replaces manual knocking, reducing the damage to the coupling; the uniform pressure also avoids the shaft hole axis deviation during insertion, which causes the coupling to scratch the motor shaft.

[0030] Split design, easy to assemble and disassemble.

[0031] 3. The various parts of this tool can be disassembled and assembled for easy on-site use.

Claims

1. A hydraulic installation tool for a motor coupling, characterized in that: The invention comprises two groups of support plates (1) which are respectively arranged at two ends of a motor (2); a plurality of through holes (101) which cooperate with connecting rods (3) are arranged on the support plates (1); a plurality of connecting rods (3) are arranged around the circumference of the motor (2); external threads which cooperate with nuts (4) are arranged at two ends of the connecting rods (3); the nuts (4) are arranged on a side of the support plates (1) away from the motor (2); a hydraulic jack (5) is arranged on a side of the support plates (1) close to the motor shaft; the hydraulic jack (5) applies pressure to a coupling (6) which is fitted on the motor shaft.

2. The hydraulic installation tool for a motor coupling according to claim 1, characterized in that: A backing plate (7) is provided between the hydraulic head of the hydraulic jack (5) and the coupling (6).

3. The hydraulic installation tool for a motor coupling according to claim 1, characterized in that: The connecting rod (3) is arranged close to the outside of the motor (2).

4. The hydraulic installation tool for a motor coupling according to claim 1, characterized in that: A thickened boss (102) is provided at the centre of one side of the support plate (1) away from the motor (2), and a plurality of reinforcing rib plates (103) are arranged around the thickened boss (102).

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