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Assembly method of split motor ball hinge and motor ball hinge

A technology of ball joints and split flaps, which is applied in the field of rail vehicles, can solve problems that do not involve the motor ball joints of CR300 EMUs, and achieve the effects of reducing train operation, improving product reliability, and simplifying design and processing

Active Publication Date: 2021-05-14
ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] None of the above schemes involves the motor ball joint suitable for CR300 EMU, so it is necessary to design a new product that can meet the needs of this new type of train

Method used

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  • Assembly method of split motor ball hinge and motor ball hinge
  • Assembly method of split motor ball hinge and motor ball hinge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment is the best embodiment, a motor ball joint, including an I-shaped mandrel 1 with a mounting structure at both ends, a rubber layer 2, a split casing 3 and an overall casing 4, and the split casing 3 passes through the rubber Layer 2 is vulcanized and bonded to the inner concave surface of the I-shaped outer side of the mandrel 1, and the vulcanized overall body of the mandrel 1, the rubber layer 2 and the split cover 3 is press-fitted in the overall cover 4. The split casing 3 is directly vulcanized and bonded to the inner concave surface of the I-shaped mandrel 1 through the rubber layer 2, and then the vulcanized overall interference is pressed into the overall outer diameter 4, which simplifies the assembly of the motor ball joint The process improves the production efficiency, and the split casing and the rubber body are all vulcanized together, which improves the product reliability.

[0033] The outer free surface of the rubber layer 2 is designed ...

Embodiment 2

[0037] In this embodiment, the split casing 4 can be divided into four or more petals, but this design method of the split casing will increase the difficulty of design and processing, and increase the workload of molding, inspection and other processes.

Embodiment 3

[0039] In this embodiment, the outer free surface of the rubber layer 2 can be designed as a concave curved surface in a conventional manner. But this design will increase the difficulty of molding process, vulcanization mold design and processing.

[0040] It can be seen from the above-mentioned embodiments that the present invention also relates to an assembly method of a split-type motor ball joint, which uses a vulcanized rubber layer 2 between the I-shaped mandrel 1 with mounting structures at both ends and the split casing 3, Then, the whole structure formed after vulcanization is press-fitted into the overall jacket 4 to ensure that the diameter-to-axis stiffness ratio of the motor ball joint is 30:10 (±20%), forming a small-diameter shaft stiffness matching structure, and through The way to increase axial stiffness provides a stop for the motor during train operation. Use the motor ball joint to hang the motor behind the vehicle bogie. It must have enough rigidity to ...

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PUM

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Abstract

A method for assembling a split-type motor ball joint, which uses a vulcanized rubber layer between the I-shaped mandrel with mounting structures at both ends and the split casing, and then presses the overall structure formed after vulcanization into the overall casing The method is used to form a motor ball joint with a matching small-diameter shaft stiffness, and to provide a stop function for the motor during train operation by improving the axial stiffness. And a motor ball joint, including an I-shaped mandrel with mounting structures at both ends, a rubber layer, a split cover and an integral cover, the split cover is vulcanized and bonded to the inner concave surface of the I-shaped outer side of the mandrel through the rubber layer At the place, the vulcanized overall interference of the mandrel, the rubber layer and the split cover is installed in the overall cover. The invention vulcanizes all the split casings on the surface of the I-shaped mandrel with installation structures at both ends at one time, and then presses them into the overall casing by interference pressure, which improves product reliability, simplifies the assembly process, and improves production efficiency.

Description

technical field [0001] The invention relates to a ball joint assembly method and a ball joint product, in particular to a split motor ball joint assembly method and the motor ball joint, which belong to the technical field of rail vehicles. Background technique [0002] The ball hinge rubber elastic element is a commonly used rubber-metal composite damping element, which can be widely used in various vibration damping places. The motor ball joint is used in the motor suspension system. As an important part to fix the motor on the bogie, it is required to reduce the mass of the ball joint body as much as possible, and at the same time, it is necessary to realize the flexible connection to achieve the purpose of vibration reduction and noise reduction. [0003] China's high-speed rail has grown from scratch, from catching up to surpassing, from introducing, digesting, absorbing and re-innovating to system integration innovation, and then to completely independent innovation. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F1/38
CPCF16F1/3835F16F1/3842F16F1/3856F16F1/3863F16F2230/02F16F1/3814F16F2226/04F16F2226/045
Inventor 张玉祥陈俊辉黄江彪罗俊冯万盛张志强曾慧
Owner ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD