Hydraulic cylinder assembly of puller

Abstract

The utility model relates to the technical field of drawing devices, in particular to a hydraulic cylinder assembly of a drawing device, which comprises a hydraulic cylinder fixing seat, a sealing end cover is connected onto the end face of the hydraulic cylinder fixing seat, and a movable hydraulic cylinder is connected into an inner cavity formed by the hydraulic cylinder fixing seat and the sealing end cover. A hydraulic oil connector is connected to the position, located below the movable hydraulic cylinder, of the side wall of the hydraulic cylinder fixing base, a plurality of sets of reset springs are arranged between the sealing end cover and the movable hydraulic cylinder, and a sealing ring and a sealing ring are arranged on the side wall, making contact with the movable hydraulic cylinder, of the hydraulic cylinder fixing base. According to the puller hydraulic cylinder assembly, the sealing ring and the sealing ring are arranged between the hydraulic cylinder fixing seat and the movable hydraulic cylinder in the puller hydraulic cylinder assembly, so that in the using process of the puller hydraulic cylinder assembly, the sealing performance of the puller hydraulic cylinder assembly can be improved; the device is more stable in the using process, meanwhile, the risk of oil leakage is reduced, and therefore the problem of poor sealing performance is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pullers, in particular to a hydraulic cylinder assembly of a puller. Background Art

[0002] Most of the current puller hydraulic cylinder assemblies adopt a single seal, which makes the sealing effect of the device not very obvious during use. At the same time, oil leakage may occur after long-term use. In view of the above problems, it is necessary to provide a puller hydraulic cylinder assembly. Utility Model Content

[0003] The purpose of the utility model is to provide a puller hydraulic cylinder assembly to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A puller cylinder assembly comprises a cylinder fixing seat, a sealing end cover is connected to the end surface of the cylinder fixing seat, a mobile cylinder is connected to the inner cavity formed by the cylinder fixing seat and the sealing end cover, a hydraulic oil connector is connected to the side wall of the cylinder fixing seat and below the mobile cylinder, multiple groups of return springs are arranged between the sealing end cover and the mobile cylinder, a sealing ring and a sealing ring are arranged on the side wall of the cylinder fixing seat in contact with the mobile cylinder, and hanging ears are symmetrically connected to the side wall of the cylinder fixing seat.

[0006] As a preferred solution of the utility model, the cylinder fixing seat and the sealing end cover are fixedly connected by multiple groups of bolts, and a sealing groove is provided on the end surface where the cylinder fixing seat and the sealing end cover are connected.

[0007] As a preferred solution of the utility model, the liquid cylinder fixing seat is composed of an outer cylinder body and an inner core, wherein the cylinder body and the inner core are an integrated structure, and the mobile liquid cylinder is composed of a boss and a base and the mobile liquid cylinder is a hollow structure, wherein the boss and the base are an integrated structure.

[0008] As a preferred solution of the utility model, the mobile cylinder is sleeved in the inner cavity of the cylinder fixing seat, wherein the mobile cylinder and the cylinder fixing seat are matched in a clearance fit, and the connection between the cylinder fixing seat and the hydraulic oil connector is a threaded connection.

[0009] As a preferred solution of the utility model, a fixing groove is provided on the end surface of the sealing end cover opposite to the mobile liquid cylinder and corresponding to the reset spring, wherein the reset spring and the fixing groove are matched in a clearance fit, and a connecting groove is provided on the side wall of the mobile liquid cylinder and corresponding to the sealing ring and the sealing ring, wherein the sealing ring, the sealing ring and the connecting groove are matched in a clearance fit.

[0010] As a preferred solution of the utility model, the cross section of the sealing ring is a circular structure, the cross section of the sealing ring is a rectangular structure, and the sealing ring is in contact with the side wall of the cylinder fixing seat.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, by arranging a sealing ring and a sealing ring between the cylinder fixing seat and the movable cylinder in the puller cylinder assembly, the sealing performance of the device can be improved during the use of the puller cylinder assembly, making the device more stable during use and reducing the risk of oil leakage, thereby solving the problem of poor sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front and side structures of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic cross-sectional structure diagram of;

[0015] Figure 3 For this utility model Figure 1 Schematic diagram of the explosion structure.

[0016] In the figure: 1. hydraulic cylinder fixing seat; 2. sealing end cover; 3. mobile hydraulic cylinder; 4. hydraulic oil connector; 5. return spring; 6. sealing ring; 7. sealing ring; 8. hanging ear. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0019] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central 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 a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used 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 in this article includes any and all combinations of one or more related listed items.

[0021] For example, please refer to Figure 1-3 , the utility model provides a technical solution:

[0022] A puller cylinder assembly includes a cylinder fixing seat 1, a sealing end cover 2 is connected to the end surface of the cylinder fixing seat 1, a mobile cylinder 3 is connected to the inner cavity formed by the cylinder fixing seat 1 and the sealing end cover 2, a hydraulic oil connector 4 is connected to the side wall of the cylinder fixing seat 1 and below the mobile cylinder 3, multiple groups of return springs 5 ​​are arranged between the sealing end cover 2 and the mobile cylinder 3, a sealing ring 6 and a sealing ring 7 are arranged on the side wall of the cylinder fixing seat 1 in contact with the mobile cylinder 3, and a hanging ear 8 is symmetrically connected to the side wall of the cylinder fixing seat 1;

[0023] In this embodiment, reference Figure 1 , Figure 2 and Figure 3 , by providing a sealing ring 6 and a sealing ring 7 on the side wall where the cylinder fixing seat 1 contacts the mobile cylinder 3, the sealing performance of the device during use is improved, making the device more stable during use, the cylinder fixing seat 1 is composed of an outer cylinder body and an inner core, wherein the cylinder body and the inner core are an integrated structure, the mobile cylinder 3 is composed of a boss and a base, and the mobile cylinder 3 is a hollow structure, wherein the boss and the base are an integrated structure, the mobile cylinder 3 is sleeved in the inner cavity of the cylinder fixing seat 1, wherein the matching mode of the mobile cylinder 3 and the cylinder fixing seat 1 is a clearance matching design, so that the device is more stable during use;

[0024] Furthermore, the cylinder fixing seat 1 and the sealing end cover 2 are fixedly connected by multiple groups of bolts, and a sealing groove is provided on the end surface where the cylinder fixing seat 1 and the sealing end cover 2 are connected. The cylinder fixing seat 1 is composed of an outer cylinder body and an inner core, wherein the cylinder body and the inner core are an integrated structure, and the mobile cylinder 3 is composed of a boss and a base, and the mobile cylinder 3 is a hollow structure, wherein the boss and the base are an integrated structure, and the mobile cylinder 3 is sleeved in the inner cavity of the cylinder fixing seat 1, wherein the matching mode of the mobile cylinder 3 and the cylinder fixing seat 1 is a clearance match, and the cylinder fixing seat 1 is connected to the hydraulic oil connector 4 The connection method is a threaded connection, and a fixing groove is provided on the end surface of the sealing end cover 2 opposite to the mobile liquid cylinder 3 and corresponding to the reset spring 5, wherein the reset spring 5 and the fixing groove are matched in a clearance fit, and a connecting groove is provided on the side wall of the mobile liquid cylinder 3 and corresponding to the sealing ring 6 and the sealing ring 7, wherein the sealing ring 6, the sealing ring 7 and the connecting groove are matched in a clearance fit, the cross-section of the sealing ring 6 is a circular structure, the cross-section of the sealing ring 7 is a rectangular structure, and the sealing ring 7 is in contact with the side wall of the liquid cylinder fixing seat 1, so that the device can be used more smoothly during use.

[0025] The working process of the utility model is as follows: when using the puller cylinder assembly, firstly, the cylinder fixing seat 1 and the sealing end cover 2 are fixedly connected by multiple groups of bolts, and a sealing groove is arranged on the end surface where the cylinder fixing seat 1 and the sealing end cover 2 are connected, and the cylinder fixing seat 1 is composed of an outer cylinder body and an inner core, wherein the cylinder body and the inner core are an integrated structure, and the mobile cylinder 3 is composed of a boss and a base, and the mobile cylinder 3 is a hollow structure, wherein the boss and the base are an integrated structure, and the mobile cylinder 3 is sleeved in the inner cavity of the cylinder fixing seat 1, wherein the matching mode of the mobile cylinder 3 and the cylinder fixing seat 1 is a clearance match, and the connection mode of the cylinder fixing seat 1 and the hydraulic oil connector 4 is a threaded connection, and the sealing end A fixing groove is provided on the end surface of the cover 2 opposite to the mobile cylinder 3 and corresponding to the reset spring 5, wherein the reset spring 5 and the fixing groove are matched in a clearance fit; a connecting groove is provided on the side wall of the mobile cylinder 3 and corresponding to the sealing ring 6 and the sealing ring 7, wherein the sealing ring 6, the sealing ring 7 and the connecting groove are matched in a clearance fit, the cross section of the sealing ring 6 is a circular structure, the cross section of the sealing ring 7 is a rectangular structure, and under the condition that the sealing ring 7 is in contact with the side wall of the cylinder fixing seat 1, the cylinder fixing seat 1, the sealing end cover 2, the mobile cylinder 3, the hydraulic oil connector 4, the reset spring 5, the sealing ring 6 and the sealing ring 7 are matched with each other to form a puller cylinder.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A puller cylinder assembly, comprising a cylinder fixing seat (1), characterized in that: A sealing end cover (2) is connected to the end surface of the cylinder fixing seat (1), a mobile cylinder (3) is connected to the inner cavity formed by the cylinder fixing seat (1) and the sealing end cover (2), a hydraulic oil connector (4) is connected to the side wall of the cylinder fixing seat (1) and located below the mobile cylinder (3), a plurality of groups of return springs (5) are arranged between the sealing end cover (2) and the mobile cylinder (3), a sealing ring (6) and a sealing ring (7) are arranged on the side wall of the cylinder fixing seat (1) in contact with the mobile cylinder (3), and a hanging ear (8) is symmetrically connected to the side wall of the cylinder fixing seat (1).

2. A puller cylinder assembly according to claim 1, characterized in that: The cylinder fixing seat (1) and the sealing end cover (2) are fixedly connected by means of a plurality of sets of bolts, and a sealing groove is provided on the end surface where the cylinder fixing seat (1) and the sealing end cover (2) are connected.

3. A puller cylinder assembly according to claim 1, characterized in that: The liquid cylinder fixing seat (1) is composed of an outer cylinder body and an inner core, wherein the cylinder body and the inner core are an integrated structure; the movable liquid cylinder (3) is composed of a boss and a base, and the movable liquid cylinder (3) is a hollow structure, wherein the boss and the base are an integrated structure.

4. A puller cylinder assembly according to claim 1, characterized in that: The movable hydraulic cylinder (3) is sleeved in the inner cavity of the hydraulic cylinder fixing seat (1), wherein the movable hydraulic cylinder (3) and the hydraulic cylinder fixing seat (1) are matched in a clearance fit, and the hydraulic cylinder fixing seat (1) and the hydraulic oil connector (4) are connected in a threaded connection.

5. The puller cylinder assembly according to claim 1, characterized in that: A fixing groove is provided on the end surface of the sealing end cover (2) opposite to the movable liquid cylinder (3) and corresponding to the reset spring (5), wherein the reset spring (5) and the fixing groove are matched in a clearance fit; and a connecting groove is provided on the side wall of the movable liquid cylinder (3) and corresponding to the sealing ring (6) and the sealing ring (7), wherein the sealing ring (6), the sealing ring (7) and the connecting groove are matched in a clearance fit.

6. A puller cylinder assembly according to claim 1, characterized in that: The cross section of the sealing ring (6) is a circular structure, the cross section of the sealing ring (7) is a rectangular structure, and the sealing ring (7) is in contact with the side wall of the cylinder fixing seat (1).

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