CN210678540U

CN210678540U - Oil seal assembly fixture

Info

Publication number: CN210678540U
Application number: CN201921000108.5U
Authority: CN
Inventors: 王海文; 饶裕明
Original assignee: Zelida Hydraulic Machinery Kunshan Co Ltd
Current assignee: Zelida Hydraulic Machinery Kunshan Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-06-05
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses an oil blanket assembly fixture, it includes guide post and push away a section of thick bamboo, the guide post includes continuous sleeve portion and guide part, the sleeve portion is the cylindric structure of cavity, it is provided with and holds the slot part to push away a section of thick bamboo, it is used for enclosing the structure to push away a section of thick bamboo the wall portion of holding the slot part is provided with a plurality of edges the breach portion that the push away a section of thick bamboo axial was seted up, breach portion runs through wall portion. The push cylinder can smoothly move on the guide post, and an oil seal lip cannot be clamped between the push cylinder and the guide post, so that the oil seal is prevented from being damaged.

Description

Oil seal assembly fixture

Technical Field

The utility model relates to an oil blanket assembly field, specific is an oil blanket assembly fixture.

Background

The oil seal is a sealing ring, and is a key part for preventing lubricating oil from leaking in the running and static states of shaft parts or piston parts. Besides the design and manufacturing quality of the oil seal, the assembly of the oil seal is also an important link concerning whether the lubricating oil leaks or not. For the installation of the piston oil seal, a hollow guiding tool with a conical surface is usually installed at the inner lip of the oil seal, then one end of the piston extends into the end with the larger diameter of the guiding tool, and after the installation position of the piston is matched with the guiding tool in place, the oil seal on the guiding tool is ejected out of the end with the larger diameter of the guiding tool by using the top cylinder, so that the piston oil seal is installed in the seal groove.

Because this top section of thick bamboo and direction instrument are excessive cooperation, so when pushing away the top section of thick bamboo, the top section of thick bamboo is more tight with the card of direction instrument more, and then probably damages the lip behind the oil blanket lip of card income between top section of thick bamboo and direction instrument, and under such working method again, the top section of thick bamboo just can take place to crack after a lot of, not only makes the top section of thick bamboo scrap, and often can fish tail oil blanket when it cracks.

Therefore, the above problems need to be solved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect among the prior art, the embodiment of the utility model provides an oil blanket assembly fixture, its oil blanket assembly fixture fragile, the easy problem that makes the oil blanket damaged in being used for solving prior art.

The embodiment of the application discloses: the utility model provides an oil blanket assembly fixture, it includes:

the guide post comprises a sleeve part and a guide part which are connected, wherein the sleeve part is of a hollow cylindrical structure, the inner diameter of the sleeve part is larger than or equal to the outer diameter of an assembled part so that the sleeve part can be sleeved at one end of the assembled part, the guide part comprises a first end connected with the sleeve part and a second end facing away from the sleeve part, the diameter of the second end is smaller than that of the first end, and the first end is smoothly connected with the second end;

the third end of the push cylinder is provided with a groove containing part extending towards the fourth end of the push cylinder, the diameter of the groove containing part is equal to or less than the diameter of the second end of the sleeve part and is less than the diameter of the first end of the sleeve part, the wall part of the push cylinder for enclosing the groove containing part is provided with a plurality of notch parts formed along the axial direction of the push cylinder, the notch parts penetrate through the wall part, and one ends of all the notch parts extend to the third end of the push cylinder, so that when the push cylinder is sleeved on the guide part and moves towards the direction of the sleeve part, the diameter of the wall part can be gradually increased and then the wall part is sleeved outside the sleeve part, and an oil seal sleeved on the guide part can be pushed out of the sleeve part by the push cylinder and assembled on an assembled part.

Further, the oil seal assembly tool further comprises an adjusting unit arranged in the sleeve portion, and the adjusting unit can move axially along the sleeve portion so as to adjust the nesting depth of the sleeve portion and the assembled part.

Further, the adjusting unit comprises a support part for receiving the assembled part accommodated in the sleeve part and a rod part connected with the support part and in threaded connection with the guide part.

Furthermore, the supporting part is back to a notch which is convenient for a tool to adjust the screw connection depth of the adjusting unit and the guide part is arranged on the end face of the rod part.

Further, the sleeve portion and the guide portion are of an integrated structure.

Further, the push cylinder comprises an elastic element arranged on the circumferential direction of the wall portion, and the elastic element is used for closing the wall portion at a separation opening of the push cylinder and the guide column.

Furthermore, a groove for accommodating the elastic element is arranged on the outer wall of the wall part close to the third end of the push cylinder.

Further, the elastic element is a spring ring.

The utility model has the advantages as follows:

the utility model provides an oil blanket assembly fixture, its push cylinder can move on the guide post smoothly, can not make the oil blanket lip card die between push cylinder and guide post to prevent that the oil blanket is damaged, simultaneously, because the push cylinder can expand the external diameter with adaptation guide part and sleeve part when moving on the guide part, thereby prevent to crack, damage behind its repetitious usage, prolong this oil blanket assembly fixture's life.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an oil seal assembly fixture in an embodiment of the present invention;

reference numerals of the above figures:

100. a guide post; 200. a push cylinder; 300. an adjustment unit;

1. a sleeve portion; 2. a guide portion; 3. a slot containing part; 4. a wall portion; 5. a notch portion; 6. a support portion; 7. a rod portion; 8. a trench;

10. a first end; 20. a second end; 30. a third end; 40. and a fourth end.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1, which illustrates an oil seal assembly tool, comprising:

the guide post 100, the guide post 100 comprises a sleeve part 1 and a guide part 2 which are connected, the sleeve part 1 is in a hollow cylindrical structure, the inner diameter of the sleeve part 1 is larger than or equal to the outer diameter of an assembled part, so that the sleeve part 1 can be sleeved at one end of the assembled part, the guide part 2 comprises a first end 10 connected with the sleeve part 1 and a second end 20 away from the sleeve part 1, the diameter of the second end 20 is smaller than that of the first end 10, and the first end 10 is smoothly connected with the second end 20;

a push tube 200, wherein the push tube 200 comprises a third end 30 and a fourth end 40 which are opposite, the third end 30 of the push tube 200 is provided with a groove containing part 3 which extends towards the fourth end 40 of the push tube 200, the diameter of the groove receiving portion 3 is equal to or greater than the diameter of the second end 20 of the sleeve portion 1, and is smaller than the diameter of the first end 10 of the sleeve portion 1, the wall portion 4 of the push cylinder 200 surrounding the groove portion 3 is provided with a plurality of notch portions 5 formed along the axial direction of the push cylinder 200, the notch portions 5 penetrate the wall portion 4, and one end of all the notch parts 5 extends to the third end 30 of the push cylinder 200, so that when the push cylinder 200 is fitted over the guide portion 2 and moved toward the sleeve portion 1, the wall portion 4 can be gradually increased in diameter and fitted over the outside of the sleeve portion 1, so that the oil seal fitted over the guide portion 2 can be pushed out of the sleeve portion 1 by the push cylinder 200 and fitted to the fitting object.

By means of the structure, when the oil seal assembly tool is used for assembling an oil seal, one end of an assembled part (such as a piston) is inserted into the sleeve part 1, so that the installation position of the assembled part for installing the oil seal is flush with the end part of the sleeve, then the oil seal sleeve is arranged on the guide part 2, when the push cylinder 200 moves from the guide part 2 to the sleeve part 1, the wall part 4 is divided into a plurality of parts which can be singly warped and expanded by the gap part, therefore, the push cylinder 200 can smoothly push the oil seal and is sleeved on the circumferential direction of the sleeve part 1, and after the oil seal is continuously pushed, the oil seal can fall off from the sleeve part 1 to be assembled on the assembled part. In this process, the push cylinder 200 can smoothly move on the guide post 100 without the oil seal lip being caught between the push cylinder 200 and the guide post 100, thereby preventing the oil seal from being damaged. In addition, the push cylinder 200 can be expanded to adapt to the outer diameters of the guide part 2 and the sleeve part 1 when moving on the guide part 2, so that the oil seal assembling tool is prevented from being cracked and damaged after being used for multiple times, and the service life of the oil seal assembling tool is prolonged.

Specifically, the sleeve portion 1 and the guide portion 2 may be of an integral structure, the sleeve portion 1 and the guide portion 2 may be coaxial, the push cylinder 200 may be coaxial after being assembled with the guide post 100, and both the end surface of the sleeve portion 1 and the end surface of the third end 30 of the push cylinder 200 may be perpendicular to the respective axes.

In particular, the oil seal installation positions of different assemblies are different, and in order to enable the respective oil seal installation positions to be flush with the end face of the sleeve portion 1 for assembly when the assemblies are nested in the sleeve portion 1, the oil seal assembly tool may further include an adjusting unit 300 disposed in the sleeve portion 1, wherein the adjusting unit 300 may be axially movable along the sleeve portion 1 so as to adjust the nesting depth of the sleeve portion 1 and the assemblies. Specifically, the adjusting unit 300 may include a support portion 6 for receiving the assembled member received in the sleeve portion 1, and a rod portion 7 connected to the support portion 6 and threadedly connected to the guide portion 2. So that the position of the support part 6 can be adjusted when screwing the lever part 7. Preferably, the shaft 7 may be coaxial with the guide post 100. The end face of the support part 6, which faces away from the rod part 7, is provided with a notch which is convenient for a tool to adjust the screw connection depth of the adjusting unit 300 and the guide part 2.

In a preferred embodiment, the push cylinder 200 is separated from the guide post 100 and then restored to its original state to maintain a stable structure for a long period of time. The push tube 200 further includes an elastic element (not shown) disposed on the circumferential direction of the wall portion 4, and the elastic element is used for closing the wall portion 4 at the separation opening of the push tube 200 and the guide post 100. Preferably, the wall portion 4 is provided with a groove 8 for accommodating the elastic element on the outer wall near the third end 30 of the push cylinder 200. The resilient element may be a spring ring.

The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete embodiment, and the explanation of the above embodiment is only used for helping to understand the technical scheme and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. The utility model provides an oil blanket assembly fixture which characterized in that includes:

2. The oil seal assembly tool according to claim 1, further comprising an adjusting unit arranged in the sleeve portion, wherein the adjusting unit is axially movable along the sleeve portion so as to adjust a nesting depth of the sleeve portion and the assembled part.

3. The oil seal assembly fixture according to claim 2, wherein the adjusting unit includes a support portion for receiving the assembled member accommodated in the sleeve portion, and a rod portion connected to the support portion and threadedly connected to the guide portion.

4. An oil seal assembly tool according to claim 3, wherein a notch facilitating the tool to adjust the screwing depth of the adjusting unit and the guide part is formed in the end face, facing away from the rod part, of the supporting part.

5. The oil seal assembly fixture of claim 1, wherein the sleeve portion and the guide portion are of an integral structure.

6. The oil seal assembly tool according to claim 1, wherein the push cylinder comprises an elastic element arranged on the circumferential direction of the wall portion, and the elastic element is used for gathering the wall portion at a separation opening of the push cylinder and the guide column.

7. The oil seal assembly tool according to claim 6, wherein a groove for accommodating the elastic element is formed in the outer wall of the wall portion close to the third end of the push cylinder.

8. The oil seal assembly fixture of claim 6, wherein the elastic element is a spring ring.