Extension spring tail end fixing device

Abstract

The utility model discloses an extension spring tail end fixing device, which comprises an extension spring, a bearing clamp and a deep groove ball bearing, and is characterized in that a spring hook is fixedly connected onto the extension spring, the spring hook is connected with an outer ring of the deep groove ball bearing, the bearing clamp is connected onto the deep groove ball bearing, and a bolt is connected onto the bearing clamp. The bolt is connected to the inner ring of the deep groove ball bearing and is connected with the nut; the utility model has the beneficial effects that the condition that the hook is abraded and fails is greatly reduced, the service life of the spring is ensured to the greatest extent, the frequency of shutdown replacement is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extension springs, in particular to an end fixing device of an extension spring. Background Art

[0002] A tension spring (also called a tension spring, or simply a tension spring) is a helical spring that bears axial tension. A tension spring is generally made of circular cross-section material. When not under load, the coils of the tension spring are generally tight and have no gaps between them.

[0003] When fixing, the tension spring is mostly installed in the specified position with the assistance of the mounting nut or the fixing iron ring through the fixing hooks or fixing rings fixedly connected at both ends of the tension spring. Therefore, there is wear and tear. Especially in high-frequency working scenarios, breakage and disengagement often occur, resulting in downtime accidents, affecting production efficiency and posing problems. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides a tension spring end fixing device to solve the existing problems.

[0005] The utility model is realized through the following technical scheme: a tension spring end fixing device, comprising a tension spring, a bearing clamp and a deep groove ball bearing, characterized in that: the tension spring is fixedly connected to a spring hook, the spring hook is connected to the outer ring of the deep groove ball bearing, the deep groove ball bearing is connected to the bearing clamp, the bearing clamp is connected to a bolt, the bolt is connected to the inner ring of the deep groove ball bearing, and the bolt is connected to a nut.

[0006] Preferably, the outer side of the bearing clamp is connected to a spacer sleeve.

[0007] Preferably, the bending inner diameter of the spring hook is larger than the outer ring diameter of the deep groove ball bearing.

[0008] Preferably, the bearing clamp clamps a deep groove ball bearing.

[0009] The beneficial effects of the utility model are as follows: the wear and failure of the hook is greatly reduced, the service life of the spring is guaranteed to the maximum extent, the number of shutdowns for replacement is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a cross-sectional view of the utility model.

[0013] In the attached drawings, 1. bearing clamp, 2. nut, 3. bolt, 4. tension spring, 5. spacer, 6. deep groove ball bearing, 7. spring hook. DETAILED DESCRIPTION

[0014] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0015] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0016] For ease of description, spatial relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature shown in a figure relative to another element or feature. It should be understood that the spatial terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, if the device in the figure is inverted, elements described as being "below" other elements or features will be positioned "above" the other elements or features. Thus, the exemplary term "below" may include both upper and lower orientations.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0018] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation of the present invention is described in detail below in conjunction with specific embodiments: Figure 1-Figure 2The utility model shown is realized by the following technical scheme: a tension spring end fixing device, including a tension spring 4, a bearing clamp 1 and a deep groove ball bearing 6, characterized in that: the tension spring 4 is fixedly connected to a spring hook 7, the spring hook 7 is connected to the outer ring of the deep groove ball bearing 6, the deep groove ball bearing 6 is connected to the bearing clamp 1, the bearing clamp 1 is connected to a bolt 3, the bolt 3 is connected to the inner ring of the deep groove ball bearing 6, and the bolt 3 is connected to a nut 2.

[0019] The outer side of the bearing clamp 1 is connected to a spacer sleeve 5 .

[0020] The bending inner diameter of the spring hook 7 is larger than the outer ring diameter of the deep groove ball bearing 6 .

[0021] The bearing clamp 1 clamps the deep groove ball bearing 6 .

[0022] The working principle of the utility model is as follows: the spring hook 7 is sleeved on the outer ring of the deep groove ball bearing 6, and the bearing clamp 1 is used to clamp on both sides of the outer ring of the deep groove ball bearing 6 to ensure that the spring hook 7 does not fall off the deep groove ball bearing 6, and the bolt 3 is passed through the inner hole of the deep groove ball bearing 6 to fix it on the use equipment, and the inner ring is pressed by the spacer 5. During work, the inner ring does not rotate, and there is no relative rotational movement between the spring hook 7 and the outer ring of the deep groove ball bearing 6, so there is no wear on the hook, thereby achieving a long service life of the pull rope spring 4 and reducing the replacement frequency.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A tension spring end fixing device, comprising a tension spring (4), a bearing clamp (1) and a deep groove ball bearing (6), characterized in that: The tension spring (4) is fixedly connected to a spring hook (7), the spring hook (7) is connected to the outer ring of a deep groove ball bearing (6), the deep groove ball bearing (6) is connected to a bearing clamp (1), the bearing clamp (1) is connected to a bolt (3), the bolt (3) is connected to the inner ring of the deep groove ball bearing (6), and the bolt (3) is connected to a nut (2).

2. A tension spring end fixing device according to claim 1, characterized in that: The outer side of the bearing clamp (1) is connected to a spacer sleeve (5).

3. The tension spring end fixing device according to claim 1, characterized in that: The curved inner diameter of the spring hook (7) is larger than the outer ring diameter of the deep groove ball bearing (6).

4. The tension spring end fixing device according to claim 1, characterized in that: The bearing clamp (1) clamps the deep groove ball bearing (6).

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