CN211231108U

CN211231108U - Novel telescopic hydraulic cylinder

Info

Publication number: CN211231108U
Application number: CN201921895929.XU
Authority: CN
Inventors: 过博
Original assignee: Wuxi Juyi Machinery Co ltd
Current assignee: Wuxi Juyi Machinery Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-08-11
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to a related technical field of hydro-cylinder, and a novel flexible pneumatic cylinder is disclosed, the hydraulic cylinder comprises a cylinder, the cylinder bottom is installed to the one end of cylinder, sets up the back hydraulic fluid port that is linked together with the cylinder inner chamber on the cylinder bottom, and the inner chamber of cylinder is provided with the piston rod, and the combination piston is installed to the one end of piston rod, and the direction end cover is installed to the other end of cylinder, and the other end of piston rod runs through the direction end cover and extends to the outside of cylinder, connects before the other end fixed mounting of. This novel flexible pneumatic cylinder has increased the sealed cooperation nature between preceding sealing washer and back sealing washer and the composite piston, and the effectual collision wearing and tearing of avoiding between each mechanism, preceding gasket and back gasket and preceding sealing washer and back sealing washer are compressed by elasticity simultaneously for front end piece and rear end piece receive elastic reaction force, and the stability of effectual guarantee front end piece and rear end piece location connection guarantees the connection wholeness between each structure of equipment composite piston simultaneously.

Description

Novel telescopic hydraulic cylinder

Technical Field

The utility model relates to a related technical field of hydro-cylinder specifically is a novel flexible pneumatic cylinder.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and does linear reciprocating motion, when the telescopic hydraulic cylinder does reciprocating motion, a piston rod in the telescopic hydraulic cylinder stretches out and contracts in a reciprocating mode, continuous friction action is generated between a piston and the inner wall of a cylinder body, after the telescopic hydraulic cylinder is used for a long time, a certain abrasion is generated between a sealing ring on the piston and the inner wall of the cylinder body, the leakage of high-pressure oil is easily caused, and the output power of equipment is reduced, so that the output power of the equipment is reduced, the telescopic hydraulic cylinder needs to be overhauled regularly, the sealing ring on the piston needs to be replaced and maintained to ensure the normal use of the equipment, but the piston sealing ring is sleeved on the piston, the relevant operators need to disassemble strongly, the piston sealing ring can be separated from a mounting groove on the piston, and, to reduce the labor intensity of the associated operator for piston maintenance.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a novel flexible pneumatic cylinder has solved the problem that the sealing washer on flexible pneumatic cylinder piston was easy to wear and tear after long-time the use is not convenient for maintain the change.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel flexible pneumatic cylinder, includes the cylinder, the cylinder end is installed to the one end of cylinder, sets up the back hydraulic fluid port that is linked together with the cylinder inner chamber on the cylinder end, and the inner chamber of cylinder is provided with the piston rod, and the combination piston is installed to the one end of piston rod, and the direction end cover is installed to the other end of cylinder, and the other end of piston rod runs through the direction end cover and extends to the outside of cylinder, and the other end fixed mounting of piston rod has the front connection, is provided with the preceding hydraulic fluid port that.

The combined piston comprises a connecting body, a front end piece, a front gasket, a front sealing ring, a rear end piece, a rear gasket and a rear sealing ring, wherein the connecting body is connected with the piston rod, the front sealing ring is sleeved at one end of the connecting body, the front end piece is connected with one end of the connecting body in a clamping manner, the front gasket is bonded on the inner side of the front end piece, the rear sealing ring is sleeved at the other end of the connecting body, the rear end piece is connected with one end of the connecting body, which is sleeved with the rear sealing ring, and the rear gasket is bonded on the inner side of the rear end piece.

Preferably, through sealing bolt fixed connection between connecting body and front end piece and the rear end piece, the draw-in groove has all been seted up with connecting body matched with side to front end piece and rear end piece, and connecting body's both ends respectively with the draw-in groove mutual joint on front end piece and the rear end piece.

Preferably, the front gasket and the rear gasket are both elastic rubber gaskets, the thicknesses of the front gasket and the rear gasket are 2-3 mm, and the surfaces of the front end piece and the rear end piece, which are far away from the inner side walls of the corresponding front end piece and the corresponding rear end piece, are respectively contacted with the end face of the connecting body.

Preferably, the outer diameters of the front end piece and the rear end piece are equal to the maximum outer diameter of the connecting body, the piston rod penetrates through the front end piece and is in threaded connection with the connecting body, and the matching relationship between the piston rod and the front end piece is in clearance fit.

Preferably, the front end piece and the rear end piece are respectively contacted with the corresponding front sealing ring and the corresponding rear sealing ring.

Preferably, the matching relationship between the clamping grooves in the front end piece and the rear end piece and the two ends of the connecting body is clearance fit.

(III) advantageous effects

The utility model provides a novel flexible pneumatic cylinder. The method has the following beneficial effects:

(1) this novel flexible pneumatic cylinder mutually supports through setting up combination piston and piston rod, and combination piston has changed traditional integral type piston structure, and the relevant operating personnel of being convenient for assembles preceding sealing washer and back sealing washer on combination piston, the effectual sealed cooperation nature that has increased between preceding sealing washer and back sealing washer and the combination piston.

(2) This novel flexible pneumatic cylinder mutually supports through setting up connecting body, front end piece and rear end piece, and when equipment uses, front end piece and rear end piece carry out the joint with connecting body's both ends respectively for make up into two sealing washer mounting grooves between connecting body and front end piece and the rear end piece, so that preceding sealing washer and the location installation of back sealing washer on the composite piston guarantee the connection wholeness between each structure of equipment composite piston simultaneously.

(3) This novel flexible pneumatic cylinder, through setting up the front end piece, the rear end piece, preceding gasket and back gasket are mutually supported, when equipment uses, preceding sealed pad and back sealed pad are fixed a position on the connecting body through front end piece and rear end piece respectively, and pass through sealing bolt connection between front end piece and rear end piece and the connecting body, preceding gasket and the back gasket that corresponds on front end piece and the rear end piece contact with the both ends face of connecting body respectively and compress tightly sealed, the effectual collision wearing and tearing of avoiding between each mechanism, gasket and back gasket and preceding sealing washer and back sealing washer are compressed by elasticity before the while, make front end piece and rear end piece receive elastic reaction force, effectual guarantee front end piece and rear end piece fixed connection's stability.

Drawings

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

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the connection body of the present invention;

FIG. 4 is a schematic view of the front end piece of the present invention;

fig. 5 is a schematic view of the rear end piece of the present invention.

In the figure: 1 cylinder barrel, 2 cylinder bottoms, 3 rear oil ports, 4 piston rods, 5 combined pistons, 5.1 connecting bodies, 5.2 front end pieces, 5.3 front gaskets, 5.4 front sealing rings, 5.5 rear end pieces, 5.6 rear gaskets, 5.7 rear sealing rings, 6 guide end covers, 7 front connections and 8 front oil ports.

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.

As shown in fig. 1-5, the utility model provides a technical solution: the utility model provides a novel flexible pneumatic cylinder, including cylinder 1, the cylinder end 2 is installed to the one end of cylinder 1, set up the back hydraulic fluid port 3 that is linked together with 1 inner chamber of cylinder on the cylinder end 2, the inner chamber of cylinder 1 is provided with piston rod 4, combination piston 5 is installed to the one end of piston rod 4, direction end cover 6 is installed to the other end of cylinder 1, the other end of piston rod 4 runs through direction end cover 6 and extends to the outside of cylinder 1, dust ring and the sealing washer with 4 looks adaptations of piston rod are installed to the inboard of direction end cover 6, the other end fixed mounting of piston rod 4 has preceding connection 7, be provided with the preceding hydraulic fluid port 8 that is linked together rather than the.

The combined piston 5 comprises a connecting body 5.1, a front end piece 5.2, a front gasket 5.3, a front sealing ring 5.4, a rear end piece 5.5, a rear gasket 5.6 and a rear sealing ring 5.7, the connecting body 5.1 is mutually connected with the piston rod 4, the front sealing ring 5.4 is sleeved at one end of the connecting body 5.1, the front end piece 5.2 is clamped at one end of the connecting body 5.1, which is sleeved with the front sealing ring 5.4, the front end piece 5.2 and the connecting body 5.1 tightly press and position the front sealing ring 5.4, the front gasket 5.3 is adhered at the inner side of the front end piece 5.2, the rear sealing ring 5.7 is sleeved at the other end of the connecting body 5.1, the connecting body 5.1 is fixedly connected with the front end piece 5.2 and the rear end piece 5.5 through a sealing bolt, the side surfaces of the front end piece 5.2 and the rear end piece 5.5 which are matched with the connecting body 5.1 are respectively provided with clamping grooves, and the two ends of the connecting body 5.1 are respectively mutually matched with the front end piece 5.2 and the rear end piece 5.2, and the piston, the rear end piece 5.5 is clamped at one end of the connecting body 5.1, which is sleeved with the rear sealing ring 5.7, the rear gasket 5.6 is adhered at the inner side of the rear end piece 5.5, the rear end piece 5.5 and the connecting body 5.1 compress and position the rear sealing ring 5.7, the sleeving mode of the traditional sealing ring is changed, the positioning stability of the front sealing ring 5.4 and the rear sealing ring 5.7 is greatly improved, the matching relationship between the clamping grooves in the front end piece 5.2 and the rear end piece 5.5 and the two ends of the connecting body 5.1 is clearance fit, the outer diameters of the front end piece 5.2 and the rear end piece 5.5 are equal to the maximum outer diameter of the connecting body 5.1, the piston rod 4 penetrates through the front end piece 5.2 to be in threaded connection with the connecting body 5.1, the matching relationship between the piston rod 4 and the front end piece 5.2 is clearance fit, so that the piston rod 4 and the front end piece 5.2 are stably assembled, the front gasket 5.3 and the rear gasket 5.6 are elastic, and the thicknesses of the front gasket 5.3-6 mm, preceding gasket 5.3 and back gasket 5.6 are sealed by elastic compression when using, and the effectual 5 each structures of avoiding the combination piston between clash and decrease guarantee the leakproofness of complex between each mechanism simultaneously, and preceding end piece 5.2 and rear end piece 5.5 contact with connecting body 5.1's terminal surface respectively on the surface of keeping away from corresponding preceding end piece 5.2 and rear end piece 5.5 inside wall, preceding end piece 5.2 and rear end piece 5.5 contact with corresponding preceding sealing washer 5.4 and back sealing washer 5.7 respectively.

The working principle is as follows: when the piston is used in equipment, the front sealing gasket 5.4 and the rear sealing gasket 5.7 are respectively positioned on the connecting body 5.1 through the front end piece 5.2 and the rear end piece 5.5, the front end piece 5.2, the rear end piece 5.5 and the connecting body 5.1 are connected through the sealing bolt, the corresponding front gasket 5.3 and the corresponding rear gasket 5.6 on the front end piece 5.2 and the rear end piece 5.5 are respectively contacted with the two end faces of the connecting body 5.1 and are compressed and sealed, then the piston rod 4 is in threaded connection with the connecting body 5.1, and maintenance and replacement of the piston are completed.

The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, and the supply also belongs to the common general knowledge in this field, and the utility model discloses mainly used protects mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.

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. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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. The utility model provides a novel flexible pneumatic cylinder, includes the cylinder, its characterized in that: the cylinder is characterized in that a cylinder bottom is installed at one end of the cylinder barrel, a rear oil port communicated with an inner cavity of the cylinder barrel is formed in the cylinder bottom, a piston rod is arranged in the inner cavity of the cylinder barrel, a combined piston is installed at one end of the piston rod, a guide end cover is installed at the other end of the cylinder barrel, the other end of the piston rod penetrates through the guide end cover and extends to the outer side of the cylinder barrel, a front connection is fixedly installed at the other end of the piston rod, and a front;

2. The novel telescopic hydraulic cylinder as claimed in claim 1, wherein: through sealing bolt fixed connection between connecting body and front end piece and the rear end piece, the draw-in groove has all been seted up with connecting body matched with side to front end piece and rear end piece, the both ends of connecting body respectively with the mutual joint of draw-in groove on front end piece and the rear end piece.

3. The novel telescopic hydraulic cylinder as claimed in claim 1, wherein: the front gasket and the rear gasket are both elastic rubber gaskets, the thicknesses of the front gasket and the rear gasket are 2-3 mm, and the surfaces of the front end piece and the rear end piece, which are far away from the inner side walls of the corresponding front end piece and the corresponding rear end piece, are respectively contacted with the end face of the connecting body.

4. The novel telescopic hydraulic cylinder as claimed in claim 1, wherein: the outer diameters of the front end piece and the rear end piece are equal to the maximum outer diameter of the connecting main body, the piston rod penetrates through the front end piece and is in threaded connection with the connecting main body, and the matching relationship between the piston rod and the front end piece is clearance fit.

5. The novel telescopic hydraulic cylinder as claimed in claim 1, wherein: the front end piece and the rear end piece are respectively contacted with the corresponding front sealing ring and the rear sealing ring.

6. The novel telescopic hydraulic cylinder as claimed in claim 1, wherein: the matching relationship between the clamping grooves in the front end piece and the rear end piece and the two ends of the connecting main body is clearance fit.