CN210738985U

CN210738985U - Hydraulic cylinder with good sealing performance

Info

Publication number: CN210738985U
Application number: CN201921553660.7U
Authority: CN
Inventors: 沈宝良; 金建根
Original assignee: Hangzhou Quanzhou Machinery Co Ltd
Current assignee: Hangzhou Quanzhou Machinery Co Ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-06-12
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses a hydraulic pressure section of thick bamboo that leakproofness is good, including urceolus, inner tube, cooling pipeline and strengthening rib, the inside of urceolus is provided with the inner tube, and the outside winding of inner tube has the cooling pipeline, the outside parcel of cooling pipeline has the heat preservation, the top of inner tube is fixed with the uide bushing, and the vertical telescopic link that has passed of central position department of uide bushing, the telescopic link extends to the inside of inner tube, the bottom mounting of telescopic link has the piston, be provided with the hydraulic fluid port on urceolus and the inner tube. The utility model discloses an install urceolus, inner tube, telescopic link, uide bushing, sealed chamber, first sealing washer, second sealing washer, third sealing washer and reset spring, the cooperation is hugged closely with the inclined plane of first sealing washer and second sealing washer to the third sealing washer under reset spring's promotion, has applyed the pressure of inside pressure to first sealing washer, makes first sealing washer hug closely the telescopic link, and the second sealing washer is also hugged closely the uide bushing inner wall and is realized sealedly, improves the leakproofness.

Description

Hydraulic cylinder with good sealing performance

Technical Field

The utility model relates to a hydraulic pressure section of thick bamboo technical field specifically is a hydraulic pressure section of thick bamboo that leakproofness is good.

Background

The hydraulic cylinder is also called as a hydraulic cylinder, is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion), has simple structure and reliable work, and is widely applied to hydraulic systems of various machines;

1. the working performance of the hydraulic cylinder is directly influenced by the sealing performance of the hydraulic cylinder, even the normal use of the whole equipment is influenced, and the sealing performance of the existing hydraulic cylinder is poor;

2. because the contact surface between the piston and the inner wall of the hydraulic cylinder rubs back and forth, a large amount of heat is generated, most of the devices do not have the heat dissipation function, the sealing ring is aged due to the rise of the heat, the piston is abraded in an accelerated manner, and the service life of the device is shortened;

3. most of the devices do not have the function of damping and buffering, and the hydraulic cylinder is low in structural strength, so that the hydraulic cylinder is easy to damage after being used for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic pressure section of thick bamboo that leakproofness is good to solve the not good, the radiating effect of leakproofness that proposes in the above-mentioned background art poor, do not possess the lower problem of buffer function and structural strength.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hydraulic pressure section of thick bamboo that leakproofness is good, includes urceolus, inner tube, cooling line and strengthening rib, the inside of urceolus is provided with the inner tube, and the outside winding of inner tube has the cooling line, the outside parcel of cooling line has the heat preservation, the top of inner tube is fixed with the uide bushing, and the vertical telescopic link that has passed of central point department of uide bushing, the telescopic link extends to the inside of inner tube, the bottom mounting of telescopic link has the piston, the inside bottom of inner tube evenly is provided with the fly leaf through the bolster, and fly leaf and piston are inconsistent, the outside of urceolus evenly overlaps and is equipped with the staple bolt, and the both sides of staple bolt all are fixed with solid fixed ring, it is fixed with the strengthening rib to pass between solid.

Preferably, the bolster is including gathering power pad and stick up the limit, the bottom of fly leaf evenly is provided with and gathers power pad, and gathers the both ends that power pad bottom and all be provided with and stick up the limit, and gather power pad and stick up the limit and be the integrated into one piece structure, stick up the bottom on limit and all be connected with the inside bottom of inner tube.

Preferably, the force gathering pad is of an inverted conical structure, and the raised edges are of a W-shaped structure.

Preferably, the inside of uide bushing is provided with sealed chamber, and the inside in sealed chamber is provided with first sealing washer and second sealing washer, and first sealing washer and second sealing washer respectively with telescopic link and uide bushing laminating.

Preferably, the cooling pipeline is spirally wound outside the inner cylinder, a water inlet is formed in the top end of one side of the outer cylinder, a water outlet is formed in the bottom end of the other side of the outer cylinder, and the water inlet and the water outlet are both connected with the cooling pipeline.

Preferably, a third sealing ring is arranged between the first sealing ring and the second sealing ring, and two ends of the third sealing ring are connected with two sides of the sealing cavity through a return spring.

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

(1) this hydraulic pressure section of thick bamboo that leakproofness is good is through installing the urceolus, the inner tube, the telescopic link, the uide bushing, the sealed chamber, first sealing washer, the second sealing washer, third sealing washer and reset spring, the third sealing washer is under reset spring's promotion, hug closely the cooperation with the inclined plane of first sealing washer and second sealing washer, the pressure to interior pressure has been exerted to first sealing washer, make first sealing washer hug closely the telescopic link, and the second sealing washer is hugged closely the uide bushing inner wall and is realized sealedly, and the leakproofness is improved, furthermore, if the device uses the back for a long time, when telescopic link and uide bushing wearing and tearing, can produce the clearance generally and influence the leakproofness, but under reset spring's effect, can promote first sealing washer and second sealing washer and compensate, make first sealing washer and second sealing washer tightly hug telescopic link and uide bushing, realize.

(2) This hydraulic pressure section of thick bamboo that leakproofness is good is provided with the cooling tube way through the outside at the inner tube, and the cooling tube way is the heliciform winding in the outside of inner tube, and the top of urceolus one side is provided with the water inlet, and the bottom of opposite side is provided with the delivery port, and the water inlet all is connected with the cooling tube way with the delivery port for let in the cooling water from the water inlet to the cooling tube way, carry out the heat exchange to the heat of device inside production, realize cooling, avoid the heat to pile up and cause the.

(3) This hydraulic pressure section of thick bamboo that leakproofness is good is fixed with the fly leaf through evenly through the bolster in the inside bottom of inner tube, when the piston motion is to the position that is close the inner tube bottom, contact the fly leaf, the extrusion bolster, make the rate of motion slow down, the bolster is including gathering power pad and stick up the limit, it is the toper structure of inversion to gather power pad, the top of gathering power pad and the bottom contact of fly leaf, the effect of absorbed vibration power has, stick up the limit and be "W" shape structure, can be with bigger outside the dispersing of vibrational force, the effect of buffering can be played like this, can not bring big weight burden for the device again, furthermore, evenly overlap in the outside of urceolus and be equipped with the staple bolt, the both sides of staple bolt all are fixed with solid fixed ring, the strengthening rib has been passed in the fixed ring, can.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the appearance structure of the present invention;

fig. 3 is an enlarged cross-sectional view of the utility model at a in fig. 1;

fig. 4 is a schematic structural diagram of the buffer member of the present invention.

In the figure: 1. an outer cylinder; 2. a buffer member; 201. a force gathering pad; 202. edge warping; 3. a piston; 4. a telescopic rod; 5. an inner barrel; 6. a water inlet; 7. a guide sleeve; 8. a heat-insulating layer; 9. a cooling pipeline; 10. an oil port; 11. a movable plate; 12. a water outlet; 13. hooping; 14. a fixing ring; 15. reinforcing ribs; 16. a first seal ring; 17. a return spring; 18. a third seal ring; 19. a second seal ring; 20. the chamber is sealed.

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.

Referring to fig. 1-4, the present invention provides an embodiment: a hydraulic cylinder with good sealing performance comprises an outer cylinder 1, an inner cylinder 5, a cooling pipeline 9 and reinforcing ribs 15, wherein the inner cylinder 5 is arranged inside the outer cylinder 1, the cooling pipeline 9 is wound on the outer side of the inner cylinder 5, a heat insulation layer 8 wraps the outer portion of the cooling pipeline 9, the cooling pipeline 9 is wound on the outer portion of the inner cylinder 5 in a spiral shape, a water inlet 6 is formed in the top end of one side of the outer cylinder 1, a water outlet 12 is formed in the bottom end of the other side of the outer cylinder 1, and the water inlet 6 and the water outlet 12 are both connected with;

when the device is used, cooling water is introduced into the cooling pipeline 9 from the water inlet 6 to exchange heat with heat generated inside the device, so that cooling is realized, the device is prevented from being damaged due to heat accumulation, and asbestos is filled in the heat insulation layer 8, so that the temperature can be prevented from being lost too fast;

a guide sleeve 7 is fixed at the top end of the inner cylinder 5, a telescopic rod 4 vertically penetrates through the central position of the guide sleeve 7, the telescopic rod 4 extends into the inner cylinder 5, a sealing cavity 20 is arranged inside the guide sleeve 7, a first sealing ring 16 and a second sealing ring 19 are arranged inside the sealing cavity 20, the first sealing ring 16 and the second sealing ring 19 are respectively attached to the telescopic rod 4 and the guide sleeve 7, a third sealing ring 18 is arranged between the first sealing ring 16 and the second sealing ring 19, two ends of the third sealing ring 18 are connected with two sides of the sealing cavity 20 through a return spring 17, namely one end of the return spring 17 is welded with the third sealing ring 18, and the other end of the return spring 17 is welded with the inner wall of the sealing cavity 20;

the first sealing ring 16 and the second sealing ring 19 are respectively attached to the telescopic rod 4 and the guide sleeve 7, the third sealing ring 18 between the first sealing ring 16 and the second sealing ring 19 is pushed by the return spring 17 to be in close fit with the inclined surfaces of the first sealing ring 16 and the second sealing ring 19, and inward pressure is applied to the first sealing ring 16, so that the first sealing ring 16 is tightly attached to the telescopic rod 4, and the second sealing ring 19 is tightly attached to the inner wall of the guide sleeve 7 to realize sealing;

the bottom end of the telescopic rod 4 is fixed with a piston 3, the bottom end inside the inner cylinder 5 is uniformly provided with a movable plate 11 through a buffer part 2, the movable plate 11 is abutted against the piston 3, the buffer part 2 comprises a force gathering pad 201 and a raised edge 202, the bottom end of the movable plate 11 is uniformly provided with the force gathering pad 201, the raised edges 202 are arranged at two ends of the bottom of the force gathering pad 201, the force gathering pad 201 and the raised edges 202 are in an integrally formed structure, the bottom end of the raised edge 202 is connected with the bottom end inside the inner cylinder 5, the force gathering pad 201 is in an inverted conical structure, and the raised edges 202 are in a W-shaped structure;

when the telescopic rod 4 drives the piston 3 to move to a position close to the bottom of the inner cylinder 5, the piston contacts the movable plate 11 and extrudes the buffer part 2, so that the movement speed is reduced, the buffer part 2 comprises a force gathering pad 201 and a raised edge 202, the force gathering pad 201 is of an inverted conical structure and has the function of absorbing vibration force, and the raised edge 202 is of a W-shaped structure and can radiate the vibration force outwards greatly, so that the buffer effect can be achieved, and a large weight burden can not be brought to the device;

evenly the cover in the outside of urceolus 1 is equipped with staple bolt 13, and the both sides of staple bolt 13 all are fixed with solid fixed ring 14, it is fixed with strengthening rib 15 to pass between solid fixed ring 14, can improve device structural strength, make it be difficult to damage, be provided with hydraulic fluid port 10 on urceolus 1 and the inner tube 5, in operation, hydraulic fluid port 10 and the oil inlet pipe connection, with inside leading-in device of fluid, this hydraulic fluid port 10 oil feed when telescopic link 4 will stretch out, this hydraulic fluid port 10 oil discharge when the withdrawal.

The working principle is as follows: when in use, the movable plate 11 is uniformly fixed at the bottom end inside the inner cylinder 5 through the buffer part 2, when the telescopic rod 4 drives the piston 3 to move to a position close to the bottom of the inner cylinder 5, the piston contacts with the movable plate 11 to press the buffer part 2, so that the movement speed is reduced, the buffer part 2 comprises the force gathering pad 201 and the raised edge 202, the force gathering pad 201 is of an inverted conical structure and has the function of absorbing vibration force, the raised edge 202 is of a W-shaped structure and can radiate the vibration force outwards, so that the buffer effect can be achieved and the device can not be subjected to large weight burden, a sealing cavity 20 is arranged at the joint of the guide sleeve 7 and the telescopic rod 4, a first sealing ring 16, a second sealing ring 19, a third sealing ring 18 and a reset spring 17 are arranged in the sealing cavity 20, the first sealing ring 16 and the second sealing ring 19 are respectively attached to the telescopic rod 4 and the, in addition, after the device is used for a long time, when the telescopic rod 4 and the guide sleeve 7 are abraded, a gap is usually generated to influence the sealing property, but the first sealing ring 16 and the second sealing ring 19 can be pushed to compensate under the action of the return spring 17, so that the sealing property is improved, in addition, when the device is used, cooling water is introduced into the cooling pipeline 9 from the water inlet 6, heat exchange is carried out on heat generated inside the device, cooling is realized, and the device is prevented from being damaged due to heat accumulation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a hydraulic pressure section of thick bamboo that leakproofness is good, includes urceolus (1), inner tube (5), cooling line (9) and strengthening rib (15), its characterized in that: the inner side of the outer barrel (1) is provided with an inner barrel (5), the outer side of the inner barrel (5) is wound with a cooling pipeline (9), the outer portion of the cooling pipeline (9) is wrapped with a heat insulation layer (8), the top end of the inner barrel (5) is fixed with a guide sleeve (7), the central position of the guide sleeve (7) vertically penetrates through a telescopic rod (4), the telescopic rod (4) extends to the inner portion of the inner barrel (5), the bottom end of the telescopic rod (4) is fixed with a piston (3), the bottom end of the inner barrel (5) is uniformly provided with a movable plate (11) through a buffer piece (2), the movable plate (11) is abutted to the piston (3), the outer side of the outer barrel (1) is uniformly sleeved with a hoop (13), two sides of the hoop (13) are both fixed with fixing rings (14), and reinforcing ribs (15) penetrate and are fixed between the fixing rings, oil ports (10) are arranged on the outer cylinder (1) and the inner cylinder (5).

2. The hydraulic cylinder with good sealing performance as claimed in claim 1, wherein: bolster (2) are including gathering power pad (201) and stick up limit (202), the bottom of fly leaf (11) evenly is provided with and gathers power pad (201), and gathers the both ends of power pad (201) bottom and all be provided with stick up limit (202), and gathers power pad (201) and stick up limit (202) and be the integrated into one piece structure, stick up the bottom on limit (202) and all be connected with the inside bottom of inner tube (5).

3. The hydraulic cylinder with good sealing performance as claimed in claim 2, wherein: the force gathering pad (201) is of an inverted conical structure, and the raised edges (202) are of a W-shaped structure.

4. The hydraulic cylinder with good sealing performance as claimed in claim 1, wherein: the inside of uide bushing (7) is provided with sealed chamber (20), and the inside in sealed chamber (20) is provided with first sealing washer (16) and second sealing washer (19), and first sealing washer (16) and second sealing washer (19) laminate with telescopic link (4) and uide bushing (7) respectively.

5. The hydraulic cylinder with good sealing performance as claimed in claim 1, wherein: cooling pipeline (9) are the heliciform winding in the outside of inner tube (5), the top of urceolus (1) one side is provided with water inlet (6), and the bottom of urceolus (1) opposite side is provided with delivery port (12), water inlet (6) and delivery port (12) all are connected with cooling pipeline (9).

6. The hydraulic cylinder with good sealing performance as claimed in claim 4, wherein: and a third sealing ring (18) is arranged between the first sealing ring (16) and the second sealing ring (19), and two ends of the third sealing ring (18) are connected with two sides of the sealing cavity (20) through a return spring (17).