CN213392944U

CN213392944U - Sealing washer for hydraulic cylinder

Info

Publication number: CN213392944U
Application number: CN202021916581.0U
Authority: CN
Inventors: 王静元
Original assignee: Jiangsu Sanli Hydraulic Machinery Co ltd
Current assignee: Jiangsu Sanli Hydraulic Machinery Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-06-08
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses a seal ring for hydraulic cylinder, comprising a cylinder body, the inside of cylinder body is provided with the piston rod, and the cylinder body is provided with the connection lantern ring, and the outer wall and the connection lantern ring of piston rod slip cup joint, and connection lantern ring one side is provided with the extrusion lantern ring, and the extrusion lantern ring is provided with first sealed leather sheath, and one side of first sealed leather sheath is provided with the location lantern ring, and the opposite side of connection lantern ring is the annular array equidistance and rotates to alternate and cup joint connecting bolt, and a plurality of screw holes have been seted up to the extrusion lantern ring, and connecting bolt's outer wall cup. The utility model discloses the cooperation that utilizes the extrusion lantern ring and the position sleeve ring is used, and when first sealed leather sheath wearing and tearing, its sealing performance descends the back, rotates connecting bolt, just can make the extrusion lantern ring and the position sleeve ring produce the extrusion to first sealed leather sheath, reduces its width to first sealed leather sheath produces certain inflation, and then strengthens the leakproofness after its wearing and tearing, and then improves its practicality.

Description

Sealing washer for hydraulic cylinder

Technical Field

The utility model relates to a seal ring field, in particular to seal ring for hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion. Its simple structure, reliable operation, when using it to realize reciprocating motion, decelerator can be removed from, and there is not transmission clearance, it is steady to move, consequently, obtain extensive application in the hydraulic system of various machinery, seal ring is the sealing member that seals up the pneumatic cylinder, when sealing member pincher trees, the extrusion, tear, wearing and tearing, ageing, rotten, deformation etc. the oil leak condition will appear in the pneumatic cylinder, the pneumatic cylinder is when using, according to the job scene, can't in time change seal ring, current seal ring then can't deal with emergency, thereby reduce its practicality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a seal ring for hydraulic cylinder to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a seal ring for hydraulic cylinder, includes the cylinder body, the inside of cylinder body is provided with the piston rod, the one end of cylinder body is provided with the connecting sleeve ring, the outer wall and the connecting sleeve ring of piston rod slide and cup joint, connecting sleeve ring one side is provided with the extrusion lantern ring, one side of the extrusion lantern ring is provided with first sealed leather sheath, one side of first sealed leather sheath is provided with the position fixing sleeve ring, the opposite side of the connecting sleeve ring is the annular array equidistance and rotates and alternate and has cup jointed connecting bolt, one side of the extrusion lantern ring is the annular array equidistance and has seted up a plurality of screw holes, connecting bolt's outer wall cup joints.

Preferably, one side of the locating lantern ring is provided with a plurality of bearing holes in an annular array at equal intervals, one end of the connecting bolt is fixedly sleeved with the locating block, and the outer wall of the locating block is rotatably sleeved with the inner cavity of the bearing hole.

Preferably, a connecting groove is formed in one side of the connecting lantern ring, and the outer wall of the extruding lantern ring is in sliding sleeve connection with the inner cavity of the connecting groove.

Preferably, a bearing groove is formed in one end of the cylinder body, the outer wall of the first sealing leather sleeve is in sliding sleeve connection with the bearing groove, a positioning groove is formed in one side of the inner portion of the bearing groove, and the outer wall of the positioning sleeve ring is in sliding sleeve connection with the inner cavity of the positioning groove.

Preferably, a sealing groove is formed in one side of the inner wall of the bearing groove, a second sealing leather sleeve is sleeved in an inner cavity of the sealing groove in a sliding mode and located outside the positioning sleeve ring, and one side of the second sealing leather sleeve is fixedly connected with the first sealing leather sleeve.

Preferably, the fixed cover of inner chamber of the connection lantern ring has connect the sealed leather sheath of third, the inner wall and the piston rod of the sealed leather sheath of third laminate mutually, one side of the connection lantern ring is that the annular array equidistance is provided with a plurality of fixing bolt, the connection lantern ring passes through fixing bolt and cylinder body fixed connection.

The utility model discloses a technological effect and advantage:

(1) the utility model discloses utilize the cooperation of the extrusion lantern ring and the position lantern ring to use, after first sealed leather sheath wearing and tearing, its sealing performance descends, rotate connecting bolt, just can make the extrusion lantern ring and the position lantern ring produce the extrusion to first sealed leather sheath, reduce its width, thus first sealed leather sheath produces certain inflation, and then strengthen its leakproofness after wearing and tearing, make it work a period of time to the pneumatic cylinder sealed once more, and then improve its practicality;

(2) the utility model discloses utilize the sealed leather sheath of second and the sealed leather sheath of third to set up the mode, the sealed leather sheath of second can strengthen the sealing performance between first sealed leather sheath outside and the cylinder body, and the sealed lantern ring of third can clear up the dust of the piston rod outer wall of back and forth movement, reduces the degree of piston rod back and forth movement to first leather sheath wearing and tearing, and then improves its life.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the side internal structure of the present invention.

Fig. 3 is the overall structure schematic diagram of the first sealing leather sheath of the present invention.

Fig. 4 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a cylinder body; 2. a piston rod; 3. a connecting lantern ring; 4. extruding the lantern ring; 5. a first sealing leather sheath; 6. a positioning collar; 7. a threaded hole; 8. a connecting bolt; 9. positioning blocks; 10. connecting grooves; 11. a bearing groove; 12. positioning a groove; 13. a sealing groove; 14. a second sealing leather sleeve; 15. a third sealing leather sleeve; 16. and (5) fixing the bolt.

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.

The utility model provides a sealing washer for hydraulic cylinder as shown in figures 1-4, which comprises a cylinder body 1, a piston rod 2 is arranged in the cylinder body 1, one end of the cylinder body 1 is provided with a connecting sleeve ring 3, the connecting sleeve ring 3, an extruding sleeve ring 4 and a positioning sleeve ring 6 are all made of rigid materials, which can not deform and are not contacted with the piston rod 2, a first sealing leather sheath 5, a second sealing leather sheath 14 and a third sealing leather sheath 15 are made of rubber materials and can deform to a certain extent, the outer wall of the piston rod 2 is sleeved with the connecting sleeve ring 3 in a sliding way, one side of the connecting sleeve ring 3 is provided with the extruding sleeve ring 4, one side of the extruding sleeve ring 4 is provided with the first sealing leather sheath 5, one side of the first sealing leather sheath 5 is provided with the positioning sleeve ring 6, the other side of the connecting sleeve ring 3 is in an annular array equidistance and rotates to be penetrated and sleeved with a connecting, the extrusion lantern ring 4 can extrude the first sealing leather sheath 5 by rotating the connecting bolts 8, the inner diameter of the first sealing leather sheath 5 is reduced under the limitation of the bearing groove 11, so that the sealing performance of the first sealing leather sheath 5 is temporarily enhanced, the hydraulic cylinder can work temporarily, and the outer wall of each connecting bolt 8 is in threaded sleeve connection with the inner cavity of the corresponding threaded hole 7;

one side of the positioning lantern ring 6 is provided with a plurality of bearing holes in an annular array at equal intervals, one end of the connecting bolt 8 is fixedly sleeved with a positioning block 9, when the connecting bolt 8 can rotate by the positioning block 9, the positioning lantern ring 6 is limited in position, the outer wall of the positioning block 9 is rotatably sleeved with the inner cavity of the bearing hole, one side of the connecting lantern ring 3 is provided with a connecting groove 10, and the outer wall of the extrusion lantern ring 4 is slidably sleeved with the inner cavity of the connecting groove 10;

one end of the cylinder body 1 is provided with a bearing groove 11, the outer wall of the first sealing leather sheath 5 is sleeved with the bearing groove 11 in a sliding manner, one side inside the bearing groove 11 is provided with a positioning groove 12, the outer wall of the positioning sleeve ring 6 is sleeved with the inner cavity of the positioning groove 12 in a sliding manner, one side of the inner wall of the bearing groove 11 is provided with a sealing groove 13, the inner cavity of the sealing groove 13 is sleeved with a second sealing leather sheath 14 in a sliding manner, the second sealing leather sheath 14 can seal the space between the outer wall of the first sealing leather sheath 5 and the cylinder body 1, the second sealing leather sheath 14 is positioned outside the positioning sleeve ring 6, one side of the second sealing leather sheath 14 is fixedly connected with the first sealing leather sheath 5, the inner cavity of the connecting sleeve ring 3 is fixedly sleeved with a third sealing leather sheath 15, the third sealing leather sheath 15 can clean dust on the outer wall of the piston rod 2, the piston rod 2 is prevented from driving dust to move, thereby improve the life of first sealed leather sheath 5, the inner wall of the sealed leather sheath 15 of third laminates with piston rod 2 mutually, and one side of the connection lantern ring 3 is that the annular array equidistance is provided with a plurality of fixing bolt 16, and not hard up fixing bolt 16 just can dismantle it to change first sealed leather sheath 5, the connection lantern ring 3 passes through fixing

bolt

16 and 1 fixed connection of cylinder body.

The utility model discloses the theory of operation: after piston rod 2 moved certain number of times relative to cylinder body 1, the sealing performance of first sealed leather sheath 5 reduced, need when its temporary use, rotate a plurality of connecting bolt 8, make the relative connecting bolt 8 motion of the extrusion lantern ring 4, and then reduce the distance between the position lantern ring 6 and the extrusion lantern ring 4, thereby produce certain extrusion force to first sealed leather sheath 5, the thickness of first sealed leather sheath 5 narrows, thereby make it at vertical inflation, and then its inner chamber diameter is less, and then strengthen its sealing performance, make piston rod 2 and cylinder body 1 continue to work for a period, then idle time, not hard up fixing bolt 16, will connect the lantern ring 3, the extrusion lantern ring 4, first sealed leather sheath 5 and position lantern ring 6 take out, it can to change it.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard parts that use all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing.

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 sealing washer for a hydraulic cylinder comprises a cylinder body (1) and is characterized in that a piston rod (2) is arranged inside the cylinder body (1), one end of the cylinder body (1) is provided with a connecting lantern ring (3), the outer wall of the piston rod (2) is sleeved with the connecting lantern ring (3) in a sliding way, an extrusion lantern ring (4) is arranged at one side of the connection lantern ring (3), a first sealing leather sheath (5) is arranged at one side of the extrusion lantern ring (4), one side of the first sealing leather sleeve (5) is provided with a positioning lantern ring (6), the other side of the connecting lantern ring (3) is in an annular array and is in equidistant rotation, inserted and sleeved with connecting bolts (8), one side of the extrusion lantern ring (4) is provided with a plurality of threaded holes (7) in an annular array at equal intervals, the outer wall of the connecting bolt (8) is in threaded sleeve connection with the inner cavity of the threaded hole (7).

2. The sealing washer for the hydraulic cylinder according to claim 1, wherein one side of the positioning collar (6) is provided with a plurality of bearing holes in an annular array at equal intervals, one end of the connecting bolt (8) is fixedly sleeved with a positioning block (9), and the outer wall of the positioning block (9) is rotatably sleeved with the inner cavity of the bearing hole.

3. The sealing washer for the hydraulic cylinder according to claim 1, wherein a connecting groove (10) is formed in one side of the connecting sleeve ring (3), and the outer wall of the extruding sleeve ring (4) is slidably sleeved with an inner cavity of the connecting groove (10).

4. The sealing washer for the hydraulic cylinder according to claim 1, wherein a bearing groove (11) is formed in one end of the cylinder body (1), the outer wall of the first sealing leather sleeve (5) is in sliding sleeve connection with the bearing groove (11), a positioning groove (12) is formed in one side inside the bearing groove (11), and the outer wall of the positioning sleeve ring (6) is in sliding sleeve connection with an inner cavity of the positioning groove (12).

5. The sealing washer for the hydraulic cylinder according to claim 4, wherein a sealing groove (13) is formed in one side of the inner wall of the bearing groove (11), a second sealing leather sleeve (14) is slidably sleeved in an inner cavity of the sealing groove (13), the second sealing leather sleeve (14) is located outside the positioning sleeve ring (6), and one side of the second sealing leather sleeve (14) is fixedly connected with the first sealing leather sleeve (5).

6. The sealing washer for the hydraulic cylinder according to claim 1, wherein a third sealing leather sheath (15) is fixedly sleeved in an inner cavity of the connecting sleeve ring (3), the inner wall of the third sealing leather sheath (15) is attached to the piston rod (2), a plurality of fixing bolts (16) are arranged on one side of the connecting sleeve ring (3) in an annular array at equal intervals, and the connecting sleeve ring (3) is fixedly connected with the cylinder body (1) through the fixing bolts (16).