CN218564250U

CN218564250U - Rectangular-section tension pulley torsion spring

Info

Publication number: CN218564250U
Application number: CN202222625806.2U
Authority: CN
Inventors: 邵文武; 张志伟; 李艳青
Original assignee: HANGZHOU FUCHUN SPRING CO Ltd
Current assignee: HANGZHOU FUCHUN SPRING CO Ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-03-03
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a tension pulley torsional spring with a rectangular section, which comprises a spring body and is characterized in that positioning grooves are arranged at two ends of the spring body, the section of the spring body is rectangular, and each positioning groove comprises an arc-shaped wall and a positioning platform which are arranged on the spring body; through the arrangement of the utility model, the spring body is arranged in the belt pulley decoupler, and the spring body with a rectangular cross section is adopted, so that the integral structural strength and deformability are enhanced, the vibration of the front end of the engine is reduced, the dynamic tension of the belt is reduced, the belt is prevented from slipping and shaking on the belt pulley, the running tension of the belt can be optimized, the power loss is reduced by reducing friction, and the service life is prolonged; through the setting of constant head tank to in installing the belt pulley decoupler with the spring body fast, promote the installation effectiveness.

Description

Rectangular-section tension pulley torsion spring

Technical Field

The utility model relates to the technical field of springs, specifically a rectangular cross section tight pulley torsional spring that rises.

Background

A pulley Decoupler (known in english-language technical literature as "Decoupler" or "Isolator") compensates for torsional vibrations and torsional irregularities introduced into its accessory, belt drive, from the crankshaft of the internal combustion engine, and is usually arranged on the generator. The torsion spring installed on the belt pulley decoupler plays an important role in torsional vibration and torsional nonuniformity in a transmission device, the structural strength and deformation of the existing torsion spring can cause vibration at the front end of an engine and the phenomena of slipping and shaking of a belt on a belt pulley, the dynamic tension of the belt is reduced, and meanwhile, the torsion spring is smooth in surface, difficult to compress and install in the belt pulley decoupler, and low in assembly efficiency; therefore, it is necessary to provide a tension wheel torsion spring with a rectangular cross section.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problems and providing a torsion spring of a tension pulley with a rectangular cross section.

In order to achieve the above purpose, the utility model provides a following technical scheme: the spring body comprises a spring body and is characterized in that positioning grooves are formed in two ends of the spring body, the cross section of the spring body is rectangular, and the positioning grooves comprise arc-shaped walls and positioning platforms which are arranged on the spring body.

The utility model has the advantages that: through the arrangement of the utility model, the spring body is arranged in the belt pulley decoupler, and the spring body with a rectangular cross section is adopted, so that the integral structural strength and deformability are enhanced, the vibration of the front end of the engine is reduced, the dynamic tension of the belt is reduced, the belt is prevented from slipping and shaking on the belt pulley, the running tension of the belt can be optimized, the power loss is reduced by reducing friction, and the service life is prolonged;

through the setting of constant head tank, solved the problem that the smooth unable location of spring body surface, utilize the work piece joint laminating with the constant head tank looks adaptation, at both sides simultaneously to the rotatory work piece in opposite direction to drive the spring body and contract, and then in quick with spring body installation belt pulley decoupler, promote the installation effectiveness.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional view of the present invention.

The labels in the figure are: the spring comprises a spring body 1, a positioning groove 2, an arc-shaped wall 21, a positioning table 22 and a rectangle 3.

Detailed description of the preferred embodiments

The torsion spring of the tension roller with a rectangular cross section according to the present invention will be further described by embodiments with reference to the accompanying drawings.

Referring to fig. 1-2, the utility model provides a tension pulley torsion spring with a rectangular cross section, which comprises a spring body 1 and is characterized in that positioning grooves 2 are arranged at two ends of the spring body 1, the cross section of the spring body 1 is rectangular 3, and each positioning groove 2 comprises an arc-shaped wall 21 and a positioning table 22 which are arranged on the spring body 1; the positioning groove 2 is arranged, so that the problem that the surface of the spring body 1 is smooth and cannot be positioned is solved, the workpiece matched with the positioning groove 2 is clamped and attached, and meanwhile, the workpiece is rotated in opposite directions on two sides, so that the spring body 1 is driven to shrink, the spring body 1 is rapidly installed in a belt pulley decoupler, and the installation efficiency is improved; through the utility model discloses a setting, installing spring body 1 in the belt pulley decoupler, adopting rectangular cross section's spring body 1, having strengthened holistic structural strength and deformability to reduce the vibrations of engine front end, reduced the dynamic tension of belt, avoid the belt to skid and shake on the band pulley, still can optimize the running tension of belt simultaneously, reduce power loss through reducing friction, promote life.

The utility model discloses in, at first aim at constant head tank 2 with the work piece and insert wherein, make the outer wall and the laminating of arc wall 21 of work piece, the work piece terminal surface closely laminates with location platform 22, thereby drives spring body 1 crimple in both sides to opposite direction rotation work piece simultaneously, makes its length shorten after spring body 1 crimples, puts into the belt pulley decoupler 1 of compression fast to realize rapid Assembly, promote the installation effectiveness.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a rectangular cross section tight pulley torsional spring that rises, includes spring body (1), characterized by the both ends of spring body (1) constant head tank (2) that are equipped with, the cross-section of spring body (1) be rectangle (3), constant head tank (2) including setting up arc wall (21) and location platform (22) on spring body (1).