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Tool for aligning and assembling balance shaft

A technology of balance shaft and tooling, which is applied in the direction of spring/shock absorber, vibration suppression adjustment, mechanical equipment, etc., to achieve the effect of saving operating hours, firm clamping and low cost

Inactive Publication Date: 2021-01-05
HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no such tool in the prior art that can maintain the mutual positional relationship between the balance weight of the balance shaft and the crankshaft. Therefore, the purpose of the tool of the present invention is to maintain the proper positional relationship between the balance weight of the balance shaft and the crankshaft after assembly

Method used

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  • Tool for aligning and assembling balance shaft
  • Tool for aligning and assembling balance shaft
  • Tool for aligning and assembling balance shaft

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Experimental program
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Effect test

specific Embodiment approach 1

[0015] Specific implementation mode one: as Figure 1 ~ Figure 3 As shown, the present invention discloses a tooling for aligning and assembling a balance shaft, including a base block 1, a leveling bump 2, a crankshaft center pin 3, a crankshaft side pin 4 and a balance shaft pin 5, and the base block 1 is installed One end facing the balance shaft 6 is provided with a leveling bump 2, the leveling bump 2 is integrally cast with the base block 1, and the integrally cast base block 1 and the leveling bump 2 cooperate with the end surface of the crankshaft 8 and the balance shaft 6. For the height difference generated by the end faces, when in use, the installation end face of the leveling bump 2 is matched with the rear end face of the balance shaft quality block 11 of the balance shaft 6, and the installation end face of the base block 1 is matched with the rear end face of the rear flange of the crankshaft 8; The outer end of the leveling bump 2 is provided with a gap 12 tha...

specific Embodiment approach 2

[0016] Embodiment 2: This embodiment is a further description of Embodiment 1. The mounting surface of the leveling bump 2 is provided with a balance shaft pin installation hole, and the balance shaft pin 5 is embedded in the balance shaft with an interference fit. In the shaft pin installation hole; the installation surface of the base block 1 is provided with a crankshaft center pin installation hole and a crankshaft side pin installation hole, and the crankshaft center pin 3 is embedded in the crankshaft center pin installation hole with an interference fit. The crankshaft side pin 4 is interference fitted and embedded in the crankshaft side pin installation hole.

specific Embodiment approach 3

[0017] Specific implementation mode three: as figure 1 As shown, this embodiment is a further description of specific embodiment 1 or 2. The outer ends of the crankshaft center pin 3 , crankshaft side pin 4 and balance pin 5 are all provided with chamfers to avoid damage to the parts.

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Abstract

The invention discloses a tool for aligning and assembling a balance shaft, and belongs to the technical field of automobile engines. A leveling protruding block is arranged at the end, close to the balance shaft, of the installation face of a base body block; the leveling protruding block and the base body block are integrally formed through casting; a notch is formed in the outer end of the leveling protruding block; the installation face is detachably fixed to a balance shaft pin which is matched with a balance shaft mass block pin hole of a balance shaft mass block; the end, close to a crankshaft, of the installation face of the base body block is detachably fixed to a crankshaft center pin and a crankshaft side pin; the crankshaft center pin is matched with a crankshaft center hole; and the crankshaft side pin is matched with a crankshaft pin hole. Effective, rapid and convenient tool support can be provided for balance shaft assembling and adjusting, meanwhile, the balance shaftmass block is prevented from being damaged in the assembling process, assembling and disassembling are convenient, the operation time is saved, operation in a narrow space is realized, final shaping of the scheme and reliability verification of products are completed, and the tool is accurate in positioning, low in cost, firm in clamping, easy to assemble and disassemble, and compact in structure.

Description

technical field [0001] The invention relates to a tool for aligning and assembling a balance shaft, which belongs to the technical field of automobile engines. Background technique [0002] With the advancement of automobile technology and the improvement of people's living standards, people's requirements for the performance of automobile products are getting higher and higher. During the working cycle of the engine, the piston moves very quickly and at a very uneven speed. Due to the repeated high-speed linear motion of the piston in the cylinder, a large inertial force will inevitably be generated, and various inertial forces cannot be completely balanced, which will cause the engine to vibrate. In order to eliminate vibration, the application of balance shaft technology improves the NVH noise, vibration and harshness performance and ride enjoyment of the engine and the vehicle. [0003] Balance shaft technology, simply put, is a shaft equipped with an eccentric weight ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/26
CPCF16F15/264
Inventor 宋太安闫立凯曹权佐潘圣临李晓磊曹亮孙云龙张霖张法张洪瑀于晓彤潘丽莉施玉春卢俊于荣枫
Owner HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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