CN209195860U - A kind of hydraulic cylinder sealing device - Google Patents

Abstract

The utility model discloses a kind of hydraulic cylinder sealing devices, including cylinder body and oil cylinder piston, the piston rod connected on oil cylinder piston is protruding and runs through cylinder body, the piston rod is set with link block and conical ring outside cylinder body, conical ring is placed in dust hood, the inclined-plane of dust hood is connected with piston rod, cylinder body, link block and conical ring are provided with sealing ring between piston rod, it is fixedly connected between link block and cylinder body by fixture block, exhaust valve and sewage draining exit are additionally provided on cylinder body, necking part among the oil cylinder piston is to be set with sealing ring, venthole and filter screen are equipped in the exhaust valve, blocking is fastened by bolts in the sewage draining exit, the fixture block both ends of the surface pass through bolt respectively and gasket is in contact with oil cylinder and link block, the dust cover is hollow and offers through-hole, the bottom of through-hole and conical ring is flat Together, the conical ring is rubber material, and the inclined-plane of dust cover is also made of rubber material.

Description

A kind of hydraulic cylinder sealing device

Technical field

The utility model relates to sealing device structure design fields, more particularly to a kind of hydraulic cylinder sealing dress It sets.

Background technique

In the prior art, hydraulic cylinder is the hydraulic execution that hydraulic energy is changed into mechanical energy, does straight reciprocating motion Element, structure is simple, reliable operation, and the driving device of reciprocating motion is realized using it, can remove deceleration device from, and do not have There is drive gap, movement is steady, therefore is used widely in the hydraulic system of various machinery.Hydraulic cylinder power output and piston Effective area and its pressure difference on both sides are directly proportional；Hydraulic cylinder substantially by cylinder barrel and cylinder cap, piston and piston rod, sealing device, Buffer unit and exhaust apparatus form.

Currently, under factory process environment use hydraulic cylinder when, due to hydraulic cylinder piston rod after stretching out oil cylinder its table Face easily adsorbs dirt, and after use, dirt is easy to be entrained into oil cylinder, influences stability in use and leakproofness, thus It needs to solve the problems, such as a line.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of hydraulic cylinder sealing device, should The dust adhered on piston rod is wiped off and is drained by dust hood combination conical ring by device, the peace of multiple-sealed circle and sealing ring Dress improves sealing performance, and fixture block is fixedly connected with block convenient for its dismounting.

In order to achieve the above object, the technical solution adopted in the utility model is: a kind of hydraulic cylinder sealing device, packet Cylinder body and oil cylinder piston are included, the piston rod connected on oil cylinder piston is protruding and runs through cylinder body, and the piston rod is in cylinder body It is set with link block and conical ring outside, conical ring is placed in dust hood, and the inclined-plane of dust hood is connected with piston rod, cylinder body, link block And conical ring is provided with sealing ring between piston rod, is fixedly connected between link block and cylinder body by fixture block, also sets on cylinder body It is equipped with exhaust valve and sewage draining exit.

Further, the necking part among oil cylinder piston as described above is to be set with sealing ring.

Further, venthole and filter screen are equipped in exhaust valve as described above.

Further, blocking is fastened by bolts in sewage draining exit as described above.

Further, fixture block both ends of the surface as described above pass through bolt respectively and gasket connects with oil cylinder and link block Touching.

Further, dust hood as described above is hollow and offers through-hole, and through-hole is concordant with the bottom of conical ring.

Further, conical ring as described above is rubber material, and the inclined-plane of dust hood is also made of rubber material.

Compared with prior art, the utility model has the beneficial effects that the present apparatus will be lived by dust hood combination conical ring The dust adhered on stopper rod is wiped off and is drained, and the installation of multiple-sealed circle and sealing ring improves sealing performance, and fixture block is fixedly connected Furthermore block increases the air of exhaust valve filtering disengaging oil cylinder newly, keeps the clean cleaning of cylinder interior convenient for its dismounting.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the fixture block enlarged diagram of the utility model.

The label in accompanying drawing is: 1. piston rods；2. dust hood；3. fixture block；4. exhaust valve；5. oil cylinder piston；6. sealing ring； 7. sewage draining exit；8. link block；9. conical ring；10. cylinder body.

Specific embodiment

Be described in detail below with reference to embodiment referring to attached drawing, so as to the technical characteristics of the utility model and advantage into Row deeper into annotation.

As shown in Figs. 1-2, a kind of hydraulic cylinder sealing device of the utility model, including cylinder body 10 and oil cylinder piston 5, The piston rod 1 connected on oil cylinder piston 5 is protruding and runs through cylinder body 10, the piston rod 1 company of being set with outside cylinder body 10 Block 8 and conical ring 9 are connect, conical ring 9 is placed in dust hood 2, and the inclined-plane of dust hood 2 is connected with piston rod 1, cylinder body 10,8 and of link block Conical ring 9 is provided with sealing ring between piston rod 1, is fixedly connected between link block 8 and cylinder body 10 by fixture block 3, cylinder body 10 On be additionally provided with exhaust valve 4 and sewage draining exit 7.

Further, the necking part among the oil cylinder piston 5 is to be set with sealing ring 6, increases the leakproofness of piston, It is equipped with venthole and filter screen in the exhaust valve 4, to cross air filtering, is fastened by bolts in the sewage draining exit 7 stifled Plug, convenient for the greasy dirt in periodic cleaning oil cylinder.

Further, 3 both ends of the surface of fixture block pass through bolt and gasket respectively and are in contact with oil cylinder and link block 8. Fixture block 3 is non-standard de-sign, can play rotation stop and fixed function, while convenient for disassembly and assembly, it is only necessary to unscrew a bolt, it can be around The rotation of another bolt.

Further, the dust hood 2 is hollow and offers through-hole, and through-hole is concordant with the bottom of conical ring 9, the cone Ring 9 is rubber material, and the inclined-plane of dust hood 2 is also made of rubber material, the air pressure under the movement of piston rod 1, in dust hood 2 With variation, it can be convenient the grey trifle in the world bits that discharge is scraped.

In utility model device, the standard components such as sealing ring 6, sealing ring and bolt are the prior art or material, affiliated Technical staff according to required product type and specification, can directly be bought from market or tailor-made.

Clear, complete description is carried out to the utility model by the technical solution in above embodiments, it is clear that described Embodiment be the utility model a part embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.

Claims (7)

1. a kind of hydraulic cylinder sealing device, including cylinder body (10) and oil cylinder piston (5), the work that is connected on oil cylinder piston (5) Stopper rod (1) is protruding and runs through cylinder body (10), which is characterized in that the piston rod (1) company of being set with outside cylinder body (10) Block (8) and conical ring (9) are connect, conical ring (9) is placed in dust hood (2), and the inclined-plane of dust hood (2) is connected with piston rod (1), cylinder body (10), link block (8) and conical ring (9) are provided with sealing ring between piston rod (1), between link block (8) and cylinder body (10) It is fixedly connected by fixture block (3), exhaust valve (4) and sewage draining exit (7) is additionally provided on cylinder body (10).

2. hydraulic cylinder sealing device according to claim 1, which is characterized in that the oil cylinder piston (5) is intermediate Necking part be set with sealing ring (6).

3. hydraulic cylinder sealing device according to claim 2, which is characterized in that be equipped in the exhaust valve (4) Venthole and filter screen.

4. hydraulic cylinder sealing device according to claim 3, which is characterized in that pass through in the sewage draining exit (7) Bolt fastening blocking.

5. hydraulic cylinder sealing device according to claim 4, which is characterized in that fixture block (3) both ends of the surface point Not Tong Guo bolt and gasket be in contact with oil cylinder and link block (8).

6. hydraulic cylinder sealing device according to claim 5, which is characterized in that the dust hood (2) is hollow simultaneously Through-hole is offered, through-hole is concordant with the bottom of conical ring (9).

7. hydraulic cylinder sealing device according to claim 6, which is characterized in that the conical ring (9) is rubber material The inclined-plane of matter, dust hood (2) is also made of rubber material.