CN212838690U

CN212838690U - Guide structure of hydraulic cylinder piston adopting U, Y type ring

Info

Publication number: CN212838690U
Application number: CN202021199032.6U
Authority: CN
Inventors: 彭淦成; 彭发雄
Original assignee: Foshan Nanhai Faxiong Hydraulic Auto Parts Industry Co ltd
Current assignee: Foshan Nanhai Faxiong Hydraulic Auto Parts Industry Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-03-30
Anticipated expiration: 2030-06-24

Abstract

The utility model relates to the technical field of hydraulic cylinders, and discloses a guide structure when a hydraulic cylinder piston adopts U, Y-shaped rings, which solves the problem that the sealing rings are scratched at the port of a cylinder barrel and the internal thread of the cylinder barrel due to the inclination of the existing piston rod, which comprises a cylinder barrel, a piston rod, a first sealing ring, a supporting ring, a second sealing ring, a guide piece, a first sealing ring groove, a supporting ring groove, a second sealing ring groove and a guide piece groove, the piston is connected in the cylinder barrel in a sliding way, the utility model, through the guide piece arranged on the piston, in the process of assembling the hydraulic cylinder, the guide piece firstly enters the cylinder barrel to guide and prevent the piston rod from excessively inclining, under the condition that does not harm first sealing washer and second sealing washer, the effectual piston of having guaranteed and in piston and the piston rod can the quick loading cylinder, and remove the loaded down with trivial details that the guide pin bushing need be used in the assembly at every turn from.

Description

Guide structure of hydraulic cylinder piston adopting U, Y type ring

Technical Field

The utility model belongs to the technical field of the pneumatic cylinder, specifically be a guide structure when pneumatic cylinder piston adopts U, Y type circle.

Background

The hydraulic cylinder is an actuating element in a hydraulic transmission system and is an energy conversion device for converting hydraulic energy into mechanical energy.

In the hydraulic cylinder assembling process in the prior art, the sealing rings are scratched at the port of the cylinder barrel and at the internal thread of the cylinder barrel due to the inclination of the piston rod, so that a guide structure is needed when the piston of the hydraulic cylinder adopts U, Y-shaped rings.

Disclosure of Invention

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a guide structure when pneumatic cylinder piston adopts U, Y type circle, the effectual current piston rod slope of having solved leads to the sealing washer in cylinder port department and the problem of cylinder internal thread department scratch.

In order to achieve the above object, the utility model provides a following technical scheme: a guide structure when pneumatic cylinder piston adopts U, Y type circle, including cylinder, piston rod, first sealing washer, support ring, second sealing washer, guide, first sealing washer groove, support ring groove, second sealing washer groove and guide groove, the inside sliding connection of cylinder has the piston, and piston one end middle part is connected with the piston rod, and piston outer end one side joint has first sealing washer, and first sealing washer one side joint has the support ring, and support ring one side joint has the second sealing washer, and second sealing washer one side joint has the guide.

Preferably, the piston is in threaded connection with the piston rod.

Preferably, the surface of the piston is provided with a first sealing ring groove relative to the clamping joint of the first sealing ring.

Preferably, a supporting ring groove is formed in the surface of the piston opposite to the clamping position of the supporting ring.

Preferably, a second sealing ring groove is formed in the surface of the piston, corresponding to the clamping joint of the second sealing ring.

Preferably, the piston surface is provided with a guide piece groove corresponding to the clamping position of the guide piece.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, through the guide that sets up on the piston, in pneumatic cylinder assembling process, the cylinder is gone into to the guide most advanced, plays the direction and prevents that the piston rod from excessively inclining, under the condition that does not harm first sealing washer and second sealing washer, in the effectual piston and the piston rod of having guaranteed can the quick packing into the cylinder, and remove the loaded down with trivial details that the guide pin bushing need be used in the assembly at every turn from.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

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

fig. 2 is a schematic view of the first seal ring groove of the present invention;

in the figure: 1. a cylinder barrel; 2. a piston; 3. a piston rod; 4. a first seal ring; 5. a support ring; 6. a second seal ring; 7. a guide member; 8. a first seal ring groove; 9. a support ring groove; 10. a second seal ring groove; 11. a guide slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.

Embodiment one, given by figure 1 and figure 2, the utility model discloses a cylinder 1, piston 2, piston rod 3, first sealing washer 4, support ring 5, second sealing washer 6, guide 7, first sealing washer groove 8, support ring groove 9, second sealing washer groove 10 and guide groove 11, 1 inside sliding connection of cylinder has

piston

2, 2 one end middle parts of piston are connected with

piston rod

3, 2 outer end one side joints of piston have first sealing washer 4, be convenient for play sealed effect, 4 one side joints of first sealing washer have support ring 5, play the effect of support, prevent direct friction between the metal, 5 one side joints of support ring have second sealing washer 6, further play sealed effect, 6 one side joints of second sealing washer have guide 7, the convenience leads piston 2.

In the second embodiment, on the basis of the first embodiment, the piston 2 and the piston rod 3 are in threaded connection, so that the quick assembly and disassembly are facilitated.

Third embodiment, on the basis of first embodiment, piston 2 surface is seted up first sealing washer groove 8 for first sealing washer 4 joint department, is convenient for install first sealing washer 4.

In the fourth embodiment, on the basis of the first embodiment, a supporting ring groove 9 is formed in the surface of the piston 2 at the clamping position relative to the supporting ring 5, so that the supporting ring 5 can be conveniently installed.

Fifth, on the basis of the first embodiment, a second seal ring groove 10 is formed in the surface of the piston 2, which is clamped with respect to the second seal ring 6, so that the second seal ring 6 can be conveniently mounted.

Sixth embodiment, on the basis of the first embodiment, a guide groove 11 is formed in the surface of the piston 2 at the clamping position relative to the guide 7, so that the guide 7 can be conveniently installed.

The working principle is as follows: when the hydraulic cylinder is used, in the hydraulic cylinder assembling process, when the piston rod 3 moves, the piston rod 3 drives the piston 2 to move towards the inside of the cylinder barrel 1, the guide piece 7 on the piston 2 firstly enters the cylinder barrel 1 to guide and prevent the piston rod 3 from being too inclined, and therefore the first sealing ring 4 and the second sealing ring 6 are prevented from being scratched at the port of the cylinder barrel 1 and the inner thread of the cylinder barrel 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A guide structure when pneumatic cylinder piston adopts U, Y type circle, including cylinder (1), piston (2), piston rod (3), first sealing washer (4), support ring (5), second sealing washer (6), guide (7), first sealing washer groove (8), support ring groove (9), second sealing washer groove (10) and guide groove (11), its characterized in that: the piston cylinder is characterized in that a piston (2) is connected to the inside of the cylinder barrel (1) in a sliding mode, a piston rod (3) is connected to the middle of one end of the piston (2), a first sealing ring (4) is clamped to one side of the outer end of the piston (2), a supporting ring (5) is clamped to one side of the first sealing ring (4), a second sealing ring (6) is clamped to one side of the supporting ring (5), and a guide piece (7) is clamped to one side of the second sealing ring (6.

2. The hydraulic cylinder piston of claim 1 adopts U, Y type ring, which is characterized in that: the piston (2) is in threaded connection with the piston rod (3).

3. The hydraulic cylinder piston of claim 1 adopts U, Y type ring, which is characterized in that: a first sealing ring groove (8) is formed in the surface of the piston (2) relative to the clamping position of the first sealing ring (4).

4. The hydraulic cylinder piston of claim 1 adopts U, Y type ring, which is characterized in that: and a supporting ring groove (9) is formed in the surface of the piston (2) relative to the clamping position of the supporting ring (5).

5. The hydraulic cylinder piston of claim 1 adopts U, Y type ring, which is characterized in that: and a second sealing ring groove (10) is formed in the surface of the piston (2) relative to the clamping position of the second sealing ring (6).

6. The hydraulic cylinder piston of claim 1 adopts U, Y type ring, which is characterized in that: and a guide piece groove (11) is formed in the surface of the piston (2) relative to the clamping position of the guide piece (7).