CN217814241U

CN217814241U - Adjustable cylinder piston rod with high wear resistance

Info

Publication number: CN217814241U
Application number: CN202221395267.1U
Authority: CN
Inventors: 支向军
Original assignee: Wuxi Jiangnan High Precision Cold-Drawn Pipe Co ltd
Current assignee: Wuxi Jiangnan High Precision Cold-Drawn Pipe Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-11-15
Anticipated expiration: 2032-06-06

Abstract

The utility model relates to a cylinder piston rod of adjustable type of high wearability, its characterized in that: the sealing device comprises a sealing ring, a rod body, a plug part in threaded connection with the rod body and a limiting ring for limiting the position of the plug part; the club face is arranged along the club body; the limit ring slides along the face; the limiting ring is detachably connected with the plug part; the sealing ring is sleeved on the plug part and the limiting ring. The problem of adopt fastening screw to fix the piston on the body of rod among the current scheme, the ubiquitous wearability is poor and can't adjust the piston position is solved.

Description

High-wear-resistance adjustable cylinder piston rod

Technical Field

The utility model relates to a cylinder field especially relates to a cylinder piston rod of adjustable type of high wearability.

Background

The cylinder is a pneumatic actuator which converts gas pressure energy into mechanical energy and makes linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When the reciprocating motion is realized by the reciprocating motion mechanism, the reciprocating motion is stable, so the reciprocating motion mechanism is widely applied to driving systems of various machines. The piston rod is a connecting component for supporting the piston to do work, is applied to an oil cylinder and a cylinder movement executing component, and is a movement component with frequent movement. At present, the piston rod for the existing cylinder adopts fastening screws to fix the piston on the rod body, and the defects of poor wear resistance and incapability of adjusting the position of the piston commonly exist. How to solve this problem becomes crucial.

Disclosure of Invention

To the shortcoming of above-mentioned prior art, the utility model aims at providing a cylinder piston rod of adjustable type of high wearability to adopt fastening screw to fix the piston on the body of rod among the solution prior art, the ubiquitous wearability is poor and can't carry out the problem adjusted to the piston position.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

an adjustable cylinder piston rod with high wear resistance;

the sealing device comprises a sealing ring, a rod body, a plug part in threaded connection with the rod body and a limiting ring for limiting the position of the plug part; the club face is arranged along the club body; the limit ring slides along the face; the limiting ring is detachably connected with the plug part; the sealing ring is sleeved on the plug part and the limiting ring.

The further technical scheme is as follows: a guide rail is arranged on the rod surface along the rod body; the limiting ring is arranged on the guide rail in a sliding mode.

The further technical scheme is as follows: an avoidance port is formed in the limiting ring; the avoidance port is in sliding contact with the face.

The further technical scheme is as follows: external threads are formed on two sides of the rod face on the rod body; internal threads are arranged around the plug part; the external thread and the internal thread are matched with each other.

The further technical scheme is as follows: the limiting ring is in threaded connection with a fixing piece; a fixing hole is formed along the end face of the plug part; the fixing piece is screwed into the fixing hole.

The further technical scheme is as follows: an installation groove is formed around the plug part and the limiting ring; the sealing ring is arranged in the mounting groove; the sealing ring is attached to the cylinder barrel.

The further technical scheme is as follows: the sealing ring comprises a first ring body arranged in the mounting groove and a second ring body attached to the cylinder barrel; the second ring body is disposed around the first ring body.

The further technical scheme is as follows: a cavity is formed in the first ring body; a supporting plate is arranged in the cavity; the supporting plate outwards supports the first ring body to be attached to the mounting groove.

The further technical scheme is as follows: one side of the plug part, which is close to the limiting ring, is provided with a mounting position; the limiting ring is embedded in the mounting position.

Compared with the prior art, the utility model discloses a beneficial technological effect as follows: (1) The rotation of the limiting ring is limited by the contact of the avoidance port and the face of the contact rod, and when the limiting ring is connected with the plug part, the limiting ring limits the rotation of the plug part, so that the movement of the plug part is limited, and the plug part is firmly fixed on the rod body; (2) When the fixing piece is unscrewed, the thread of the fixing piece is screwed out of the fixing hole, the limiting ring is not connected with the plug part, the plug part is rotated to move along the rod body, so that the position of the plug part on the rod body can be adjusted, and when the thread of the fixing piece is screwed into different fixing holes, the fixed connection of the limiting ring and the plug part is completed, and the adjustable function of the piston rod of the air cylinder is realized; (3) The sealing rings are sleeved on the plug part and the limiting ring respectively, so that the number of sealing circles of the sealing rings is increased, and the sealing capability of the piston rod of the air cylinder is improved; (4) The first ring body is supported outwards through the supporting plate, so that the first ring body is firmly arranged in the mounting groove, the sealing area of the sealing ring is increased by attaching the second ring body to the cylinder barrel, and the sealing performance of the sealing ring is improved; (5) The mounting position is arranged on the end face of the plug portion, when the plug portion is connected with the limiting ring, the limiting ring is embedded into the mounting position, the plug portion and the limiting ring are positioned and connected through the mounting position, coaxial connection is achieved between the plug portion and the limiting ring, mounting accuracy of the plug portion and the limiting ring on the rod body is improved, friction between the cylinder piston rod and the cylinder barrel is reduced, and wear resistance of the cylinder piston rod is improved.

Drawings

Fig. 1 shows a schematic structural diagram of a cylinder piston rod of an adjustable type with high wear resistance according to a first embodiment of the present invention.

Fig. 2 shows a schematic structural diagram of a cylinder piston rod of an adjustable type with high wear resistance according to a second embodiment of the present invention.

In the drawings, the reference numbers: 1. a rod body; 11. a face; 12. a guide rail; 13. an external thread; 2. a plug portion; 21. an internal thread; 22. a fixing hole; 23. an installation position; 3. a confinement ring; 31. avoiding the mouth; 32. a fixing member; 4. a seal ring; 41. a first ring body; 42. a second ring body; 43. a cavity; 44. a supporting plate; 5. and (4) mounting the groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following device of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. To make the objects, features and advantages of the present invention more comprehensible, please refer to the attached drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limitation of the implementation of the present invention, so that the present invention does not have the essential significance in the technology, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention.

Fig. 1 shows a schematic structural diagram of a cylinder piston rod of an adjustable type with high wear resistance according to a first embodiment of the present invention. With reference to fig. 1, the utility model discloses a high wear resistance adjustable cylinder piston rod. The direction of X in the figure does the utility model discloses structure schematic's upper end, the direction of Y in the figure does the utility model discloses structure schematic's right-hand member.

The high-wear-resistance adjustable cylinder piston rod comprises a sealing ring 4, a rod body 1, a plug portion 2 in threaded connection with the rod body 1 and a limiting ring 3 for limiting the position of the plug portion 2. The club face 11 is opened along the club body 1. The limiter ring 3 slides along the face 11. The confinement rings 3 are detachably connected to the plug portion 2. The sealing ring 4 is sleeved on the plug part 2 and the limiting ring 3.

Preferably, the plug portion 2 is cylindrical. Preferably, the confinement ring 3 is cylindrical. The rod body 1 is arranged in the left and right direction. The plug part 2 is vertically screwed on the rod body 1. The limiting rings 3 are arranged on the left side and the right side of the plug part 2 on the rod body 1 in a sliding mode. The seal ring 4 is fitted over the outer surface of the plug portion 2 and the outer surface of the restriction ring 3.

The face 11 is provided with a guide rail 12 along the shaft 1. The limit ring 3 is slidably disposed on the guide rail 12.

The face 11 is provided above the stick body 1 and below the stick body 1 in the left-right direction. The guide rail 12 is provided on the face 11 in the right-left direction. The confinement rings 3 slide left and right along the guide rails 12.

The limit ring 3 is provided with an avoidance port 31. The escape opening 31 slidably contacts the face 11.

The escape opening 31 is formed through the restriction ring 3 in the left-right direction. When the limiter ring 3 slides along the guide rail 12, the inner hole surface of the escape opening 31 slides in contact with the face 11.

The rotation of the stopper ring 3 is restricted by the contact of the escape opening 31 with the contact bar surface 11, and when the stopper ring 3 is connected to the plug portion 2, the stopper ring 3 restricts the rotation of the plug portion 2, thereby restricting the movement of the plug portion 2 and firmly fixing the plug portion 2 to the rod body 1.

The rod body 1 is provided with external threads 13 on two sides of the rod face 11. An internal thread 21 is provided around the inside of the plug portion 2. The external thread 13 cooperates with the internal thread 21.

The external threads 13 are respectively arranged on the front side and the rear side of the rod body 1.

The retainer ring 3 is screwed with a fixing member 32. A fixing hole 22 is opened along the end face of the plug portion 2. The fixing member 32 is screwed into the fixing hole 22.

Preferably, the fixing hole 22 is plural. Preferably, the fixing holes 22 are screw holes. The fixing holes 22 are opened at intervals along the end face of the plug portion 2 around the left-right direction axis of the plug portion 2.

Preferably, the fixing member 32 is a bolt. The fixing member 32 is screwed to the retainer ring 3 in the left-right direction. When the fixing member 32 is tightened, the fixing member 32 is screwed into the fixing hole 22 to fixedly connect the restriction ring 3 and the plug portion 2.

When the fixing member 32 is unscrewed, the fixing member 32 is screwed out of the fixing hole 22, and the restriction ring 3 and the stopper portion 2 are not connected. Rotating the plug 2 makes the plug 2 move along the rod 1, so that the position of the plug 2 on the rod 1 can be adjusted. When the fixing member 32 is screwed into the different fixing holes 22, the fixed connection of the restriction ring 3 and the plug portion 2 is completed. The adjustable function of the piston rod of the air cylinder is realized.

An installation groove 5 is opened around the plug part 2 and the limit ring 3. The sealing ring 4 is arranged in the mounting groove 5. The sealing ring 4 is attached to the cylinder barrel.

The mounting grooves 5 are opened around the outer surface of the plug portion 2 and the outer surface of the restriction ring 3, respectively. The inner ring of the sealing ring 4 is arranged in the mounting groove 5. The outer ring of the sealing ring 4 is attached to the inner surface of the cylinder barrel.

Through establishing sealing washer 4 on cock portion 2 and restriction ring 3 cover respectively, increased the sealed number of turns of sealing washer 4, improved the sealing capacity of cylinder piston rod.

Second embodiment:

fig. 2 shows a schematic structural diagram of a cylinder piston rod of an adjustable type with high wear resistance according to a second embodiment of the present invention. As shown in fig. 1 and 2, the second embodiment is different from the first embodiment in that:

the sealing ring 4 comprises a first ring body 41 arranged in the mounting groove 5 and a second ring body 42 attached to the cylinder barrel. The second collar body 42 is disposed around the first collar body 41.

The inner ring of the second ring body 42 is connected to the outer ring of the first ring body 41. The outer race of the second ring body 42 conforms to the inner surface of the cylinder barrel.

A cavity 43 is formed along the interior of the first ring 41. A stay plate 44 is disposed in the cavity 43. The bracing plate 44 supports the first ring body 41 outwards to be attached to the installation groove 5.

A cavity 43 opens around the inside of the first ring body 41. A gusset 44 is disposed around the cavity 43. The left and right sides of the stay plate 44 outwardly support the first ring body 41 such that the first ring body 41 is fitted into the mounting groove 5.

Outwards support first ring body 41 through fagging 44 for first ring body 41 is firm places in mounting groove 5, and laminating cylinder barrel through second ring body 42 has increased the sealing area of sealing washer 4, has improved the sealing performance of sealing washer 4.

The plug part 2 is provided with a mounting position 23 at one side close to the limiting ring 3. The confinement rings 3 are embedded in the mounting locations 23.

The mounting location 23 is open at the end face of the plug portion 2. When the plug portion 2 and the confinement rings 3 are connected to each other, the confinement rings 3 are fitted into the mounting positions 23. Accomplish the location between cock portion 2 and the confinement ring 3 through installation position 23 and be connected for be coaxial coupling between cock portion 2 and the confinement ring 3, improved the installation accuracy of cock portion 2 and confinement ring 3 on the body of rod 1, reduced the friction between piston rod of the cylinder and the cylinder barrel, improved piston rod of the cylinder's wear resistance.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a cylinder piston rod of adjustable type of high wearability which characterized in that: the sealing device comprises a sealing ring, a rod body, a plug part in threaded connection with the rod body and a limiting ring for limiting the position of the plug part; the club face is arranged along the club body; the limit ring slides along the face; the limiting ring is detachably connected with the plug part; the sealing ring is sleeved on the plug part and the limiting ring.

2. The high wear adjustable cylinder piston rod of claim 1 wherein: a guide rail is arranged on the rod surface along the rod body; the limiting ring is arranged on the guide rail in a sliding mode.

3. The high wear adjustable cylinder piston rod of claim 2 wherein: an avoidance port is formed in the limiting ring; the avoidance port is in sliding contact with the face.

4. The high wear adjustable cylinder piston rod of claim 1 wherein: external threads are formed on two sides of the rod face on the rod body; internal threads are arranged around the plug part; the external thread and the internal thread are matched with each other.

5. The high wear adjustable cylinder piston rod of claim 1 wherein: the limiting ring is in threaded connection with a fixing piece; a fixing hole is formed along the end face of the plug part; the fixing piece is screwed into the fixing hole.

6. The high wear adjustable cylinder piston rod of claim 1 wherein: an installation groove is formed around the plug part and the limiting ring; the sealing ring is arranged in the mounting groove; the sealing ring is attached to the cylinder barrel.

7. The high wear adjustable cylinder piston rod of claim 6 wherein: the sealing ring comprises a first ring body arranged in the mounting groove and a second ring body attached to the cylinder barrel; the second ring body is arranged around the first ring body.

8. The high wear adjustable cylinder piston rod of claim 7 wherein: a cavity is formed in the first ring body; a supporting plate is arranged in the cavity; the supporting plate outwards supports the first ring body to be attached to the mounting groove.

9. The high wear adjustable cylinder piston rod of claim 1 wherein: one side of the plug part, which is close to the limiting ring, is provided with a mounting position; the limiting ring is embedded in the mounting position.