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Anti-abrasion and anti-breakage long-service-life drain valve spring

A liquid discharge valve and long-life technology, applied in the direction of spring/shock absorber, coil spring, liquid fuel engine, etc., can solve the problems of high cost, high price, fracture, etc., and achieve the effect of cost reduction and fatigue life improvement

Pending Publication Date: 2021-10-08
绍兴美力精密弹簧有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of these springs are imported from abroad, which is not only expensive, but also may break after 3 to 5 months of use. The use cost is high, and the working stability cannot be reliably guaranteed.

Method used

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention Creation and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should no...

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Abstract

The invention provides an anti-abrasion and anti-breakage long-service-life drain valve spring. The anti-abrasion and anti-breakage long-service-life drain valve spring comprises a main body structure and supporting rings at the two ends of the main body structure. The main body structure comprises a working ring and transition rings at the two ends of the working ring, the inner diameter of the working ring is larger than the outer diameter of the transition rings, and after the spring is pressed, even if the supporting ring retracts into the main body structure, the transition rings do not make contact with the main body structure. By means of the anti-abrasion and anti-breakage long-service-life drain valve spring, the structure of the working ring of the spring is improved, the outer diameter of the transition rings is smaller than the inner diameter of the working ring, it is guaranteed that when the spring is compressed to the limiting position, steel wires do not interfere with one another, the steel wires do not make contact with one another when the whole spring works, and the fatigue life is greatly prolonged; and materials are selected from conventional spring steel materials, so that the cost is also greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of spring production, and in particular relates to a wear-resistant and anti-broken long-life drain valve spring. Background technique [0002] The spring used in the discharge valve of the high-speed reciprocating pump is used in relatively harsh conditions. It is compressed 420-1000 times per minute, used 24 hours a day, and has a fatigue life of more than 200 million times per year. At present, most of these springs are imported from abroad, which is not only expensive, but also may break after 3 to 5 months of use. The use cost is high, and the working stability cannot be reliably guaranteed. Therefore, it is necessary to improve the spring, so as to avoid mutual wear and tear between the coils of the spring. Contents of the invention [0003] In view of this, the present invention aims to overcome the defects in the prior art, and proposes a wear-resistant and anti-broken long-life drain valve spring...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/06F04B53/10
CPCF16F1/06F04B53/10
Inventor 陈二辉
Owner 绍兴美力精密弹簧有限公司
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