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Rapid detaching method for large keyless connection coupler

A coupling and keyless technology, which is applied in the field of quick disassembly of large keyless link couplings, can solve the problems of troublesome disassembly, high physical exertion, and reduced temperature difference between the coupling and the output shaft of the reducer, etc. Fatigue, saving disassembly time, and the effect of short disassembly time

Inactive Publication Date: 2017-09-29
中重科技(天津)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the installation and commissioning of an 850 strip steel production line in China, it was found that the rough rolling coupling with keyless link was damaged. After ultrasonic flaw detection and analysis, the coupling needed to be removed and replaced. The traditional removal method was used, using a spray gun Heating can not achieve rapid heating, and can not control the temperature difference between the coupling and the output shaft of the reducer, and the mechanical jack is used for manual disassembly, which is slow and consumes a lot of physical strength. , resulting in a decrease in the temperature difference between the coupling and the output shaft of the reducer, straining the output shaft of the reducer, and even secondary locking, which makes disassembly very troublesome

Method used

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  • Rapid detaching method for large keyless connection coupler
  • Rapid detaching method for large keyless connection coupler
  • Rapid detaching method for large keyless connection coupler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: The size of the coupling is: outer diameter 920mm, wall thickness 165mm, length 980mm

[0032] A quick disassembly method for a large-scale keyless link coupling, the method includes the following steps:

[0033] a. Remove the flange connection bolts of the coupling 10, separate the two parts of the coupling 10 carried by the motor and the reducer, and leave space for disassembling the coupling 10;

[0034] b. Weld the lifting ring 3 on the outer surface of the coupling 10 and the disassembly tooling 5;

[0035] c. Evenly wind the high-frequency winding wire 7 of the high-frequency heater 8 on the outer surface of the coupling 10 at the end of the reducer;

[0036] d. The high-strength bolts 6 pass through the mounting grooves 16 and the bolt holes on the coupling 10 to connect the disassembly tooling 5 and the coupling 10 together, and leave a space where the hydraulic ejection cylinder 4 can be placed, and the hydraulic ejection cylinder The model is 70×1...

Embodiment 2

[0043] Example 2: The size of the coupling is: outer diameter 900mm, wall thickness 180mm, length 1100mm

[0044] A quick disassembly method for a large-scale keyless link coupling, the method includes the following steps:

[0045] a. Remove the flange connection bolts of the coupling 10, separate the two parts of the coupling 10 carried by the motor and the reducer, and leave space for disassembling the coupling 10;

[0046] b. Weld the lifting ring 3 on the outer surface of the coupling 10 and the disassembly tooling 5;

[0047] c. Evenly wind the high-frequency winding wire 7 of the high-frequency heater 8 on the outer surface of the coupling 10 at the end of the reducer;

[0048] d. High-strength bolts 6 pass through the mounting groove 16 and the bolt holes on the coupling 10 to connect the disassembly tooling 5 and the coupling 10 together, and leave a space where the hydraulic ejection cylinder 4 can be placed, and the hydraulic ejection cylinder The model is 70×110-3...

Embodiment 3

[0055] Example 3: The size of the coupling is: outer diameter 1000mm, wall thickness 200mm, length 1200mm

[0056] A quick disassembly method for a large-scale keyless link coupling, the method includes the following steps:

[0057] a. Remove the flange connection bolts of the coupling 10, separate the two parts of the coupling 10 carried by the motor and the reducer, and leave space for disassembling the coupling 10;

[0058] b. Weld the lifting ring 3 on the outer surface of the coupling 10 and the disassembly tooling 5;

[0059] c. Evenly wind the high-frequency winding wire 7 of the high-frequency heater 8 on the outer surface of the coupling 10 at the end of the reducer;

[0060] d. The high-strength bolts 6 pass through the mounting grooves 16 and the bolt holes on the coupling 10 to connect the disassembly tooling 5 and the coupling 10 together, and leave a space where the hydraulic ejection cylinder 4 can be placed, and the hydraulic ejection cylinder The model is 70...

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Abstract

The invention provides a rapid detaching method for a large keyless connection coupler. The method comprises the following steps that a, a flange connection bolt of the coupler is detached; b, lifting rings are welded to the outer surface of the coupler and a detaching tool; c, a high-frequency winding wire of a high-frequency heater is uniformly wound on the outer surface of the coupler; d, the detaching tool and the coupler are connected together through a high-strength bolt; e, a 3T manual hand-drive block is made to hook the lifting rings on the detaching tool and the coupler; f, a hydraulic pushing-out cylinder is placed between the detaching tool and an output shaft, and a fixed nut on the high-strength bolt is screwed up; g, the hydraulic pushing-out cylinder and an electric hydraulic pump station are connected; h, the high-frequency heater is started, and heating is conducted for 10-20 min; and I, the electric hydraulic pump station is started, the hydraulic pushing-out cylinder extends, and the coupler is driven by the detaching tool to be dragged out and disengaged from an output shaft. According to the detaching method, rapid detaching and mounting on a site can be achieved, the method can be suitable for multiple models of couplers, and manpower and time are saved.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a method for disassembling a shaft coupling, in particular to a method for quickly disassembling a large-scale keyless chain coupling. Background technique [0002] During the installation and commissioning of an 850 strip steel production line in China, it was found that the rough rolling coupling with keyless link was damaged. After ultrasonic flaw detection and analysis, the coupling needed to be removed and replaced. The traditional removal method was used, using a spray gun Heating can not achieve rapid heating, and can not control the temperature difference between the coupling and the output shaft of the reducer, and the mechanical jack is used for manual disassembly, which is slow and consumes a lot of physical strength. , resulting in a decrease in the temperature difference between the coupling and the output shaft of the reducer, straining the output shaft of the reduce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P11/00B23P19/027
CPCB23P19/025B23P19/027
Inventor 贾东坡
Owner 中重科技(天津)股份有限公司
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