CN206608398U - A kind of anti-leakage device of hydraulic cylinder - Google Patents

A kind of anti-leakage device of hydraulic cylinder Download PDF

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Publication number
CN206608398U
CN206608398U CN201720230233.XU CN201720230233U CN206608398U CN 206608398 U CN206608398 U CN 206608398U CN 201720230233 U CN201720230233 U CN 201720230233U CN 206608398 U CN206608398 U CN 206608398U
Authority
CN
China
Prior art keywords
cylinder
guide pin
dynamic sealing
pin bushing
static seal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201720230233.XU
Other languages
Chinese (zh)
Inventor
张凤林
姜孝飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Building Materials (luoyang) Energy Saving Technology Co Ltd
Original Assignee
China Building Materials (luoyang) Energy Saving Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Building Materials (luoyang) Energy Saving Technology Co Ltd filed Critical China Building Materials (luoyang) Energy Saving Technology Co Ltd
Priority to CN201720230233.XU priority Critical patent/CN206608398U/en
Application granted granted Critical
Publication of CN206608398U publication Critical patent/CN206608398U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model is related to a kind of anti-leakage device of hydraulic cylinder, the device is provided with cylinder body, guide pin bushing, card key, piston rod, first of dynamic sealing, second dynamic sealing, first of static seal and second static seal, the guide pin bushing is arranged in cylinder body and is fixedly connected by card key with cylinder body, sealed between piston rod and guide pin bushing by first of dynamic sealing and second dynamic sealing, sealed between cylinder body and guide pin bushing by first of static seal and second static seal, the utility model can be during piston rod packing be slowly worn and torn, slight leakage of oil can be avoided, which to flow in equipment, influences equipment cleaning operation, greatly prolong sealed service life simultaneously, extend maintenance cycle;And hydraulic cylinder sealing failure of removal can be found in time, accomplish to prepare in advance, accurate maintenance.

Description

A kind of anti-leakage device of hydraulic cylinder
Technical field
The utility model is related to materials for wall product stacking machine tong lifting hydraulic cylinder technical field, specifically one Plant the anti-leakage device of hydraulic cylinder.
Background technology
Hydraulic cylinder is widely used in the industrial production as the action executing element in hydraulic system.Hydraulic cylinder is continuous During stretching, retraction, there is relative motion between piston rod and piston rod packing, especially in installment state vertically downward Under, during piston rod dynamic sealing slowly abrasion, seepage fluid is often flowed in equipment, has a strong impact on equipment cleaning fortune OK, hydraulic cylinder premature failure and frequently maintenance replacing are caused.In order to avoid dynamic sealing leaks at hydraulic cylinder piston rod, prior art Also there is the structure using two seals, the purpose of such a structure is to cause hydraulic cylinder direct after avoiding first of dynamic sealing failure Failure.The problem of this structure is present be:If first of dynamic sealing works well, second dynamic sealing is in insufficient lubrication State and premature deterioration, when first of dynamic sealing failure, second dynamic sealing does not have sealing function yet;, whereas if the One of dynamic sealing effect is not so good, then second dynamic sealing is directly in working condition, does not just have the standby work for preventing from leaking With.
Utility model content
There is easily directly failure and do not have sealing and make in the sealing structure at above-mentioned existing hydraulic cylinder piston rod With the problem of, the utility model provides a kind of anti-leakage device of hydraulic cylinder.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of anti-leakage device of hydraulic cylinder, the device is provided with cylinder body, guide pin bushing, card key, piston rod, first dynamic sealing, the Two road dynamic sealings, first of static seal and second static seal, the guide pin bushing are arranged in cylinder body and consolidated by card key and cylinder body Fixed connection, is sealed between piston rod and guide pin bushing by first of dynamic sealing and second dynamic sealing, between cylinder body and guide pin bushing Sealed by first of static seal and second static seal, leading between first of dynamic sealing and second dynamic sealing Inner surface is covered provided with annular collection trough I, is set on the guide pin bushing outer surface between first of static seal and second static seal There is annular collection trough II, through hole I is provided between annular collection trough I and annular collection trough II, it is corresponding with annular collection trough II Cylinder body is provided with through hole II, and the outside of through hole II is connected with joint, and joint is connected by drainage tube with leakage of oil collection vessel.
Switch valve is provided between the joint and drainage tube.
The beneficial effects of the utility model:
The anti-leakage device of hydraulic cylinder that the utility model is provided, passes through leading between twice dynamic sealing and twice static seal Set sets annular collection trough respectively on surface, and sets between two annular collection troughs through hole, and with guide pin bushing outer surface Set between through hole, two through holes to be connected and collect by drainage tube and leakage of oil on the corresponding cylinder body of annular collection trough and hold Device is connected;During slowly being worn and torn in piston rod packing, slight leakage of oil can be avoided, which to flow in equipment, to be influenceed Equipment cleaning is run, while greatly prolonging sealed service life, extends maintenance cycle;And can find that hydraulic cylinder sealing loses in time Failure is imitated, accomplishes to prepare in advance, accurate maintenance.
Brief description of the drawings
Fig. 1 the utility model structural representations;
Fig. 2 the utility model partial structurtes enlarged drawings;
Reference:1st, cylinder body, 2, guide pin bushing, 3, card key, 4, piston rod, 5, first of dynamic sealing, 6, second move close Envelope, 7, first of static seal, 8, second static seal, 9, joint, 10, switch valve, 11, draw oil pipe, 12, leakage of oil collects and hold Device, 13, annular collection trough I, 14, annular collection trough II, 15, through hole I, 16, through hole II.
Embodiment
The utility model is further elaborated with reference to embodiment.
As shown in the figure:A kind of anti-leakage device of hydraulic cylinder, the device is provided with cylinder body 1, guide pin bushing 2, card key 3, piston rod 4, the One dynamic sealing 5, second dynamic sealing 6, first of static seal 7 and second static seal 8, the guide pin bushing 2 are arranged in cylinder body 1 And be fixedly connected by card key 3 with cylinder body 1, pass through first of dynamic sealing 5 and second dynamic sealing 6 between piston rod 4 and guide pin bushing 2 Sealed, sealed between cylinder body 1 and guide pin bushing 2 by first of static seal 7 and second static seal 8, described first The inner surface of guide pin bushing 2 between dynamic sealing 5 and second dynamic sealing 6 is provided with annular collection trough I 13, first of static seal 7 The outer surface of guide pin bushing 2 between second static seal 8 is provided with annular collection trough II 14, and annular collection trough I 13 is collected with annular Through hole I 15 is provided between groove II 14, the cylinder body 1 corresponding with annular collection trough II 14 is provided with through hole II 16, the through hole I 15 The same side of cylinder body 1 is arranged on through hole II 16, the outside of through hole II 16 is connected with joint 9, and joint 9 is by drainage tube 11 with oozing Leakage oil collection container 12 is connected;Switch valve 10 is provided between the joint 9 and drainage tube 11.
The anti-principle leaked of hydraulic cylinder is as follows:When hydraulic cylinder starts to come into operation, it is necessary to by drain path to first Annular collection trough filling lubricating oil between road dynamic sealing 5 and second dynamic sealing 6, so that second dynamic sealing 6 lubricates well. In use, when first of dynamic sealing 5 is leaked, leakage fluid can be by the annular collection trough I of the inner surface of guide pin bushing 2 13 through holes I 15 flowing on guide pin bushing 2, and the annular collection trough II 14 of its outer surface is flow to by guide pin bushing 2 through hole I 15, so External lug 9 is flow to by the through hole II 16 on cylinder body 1 afterwards, and by switch valve 10, draw oil pipe 11 and flow to leakage of oil and collect appearance Device 12, effectively prevent slight leakage of oil and flow in equipment influences equipment cleaning operation, while drawing oil pipe 11 by close observation In fluid leak magnitude, so as to judge the abrasion condition of first of dynamic sealing 5 on hydraulic cylinder, and then judge whether to need more Change.When leakage is slight, spare part can be prepared in advance and used for changing.When seepage is more serious, switch valve 10 can be closed Close, second dynamic sealing 6 is come into operation, it is ensured that the normal of hydraulic cylinder is used, and is extended maintenance cycle, be substantially prolongs sealing Service life.Once leaking during being continuing with, then whole dynamic sealings are changed immediately.
Above-mentioned all parts constitute the utility model and be able to can avoided light during piston rod packing is slowly worn and torn Micro- leakage of oil, which is flowed in equipment, influences equipment cleaning operation, while greatly prolonging sealed service life, extends maintenance cycle. And hydraulic cylinder sealing failure of removal can be found in time, accomplish to prepare in advance, accurate maintenance.

Claims (2)

1. a kind of anti-leakage device of hydraulic cylinder, the device is provided with cylinder body(1), guide pin bushing(2), card key(3), piston rod(4), first Dynamic sealing(5), second dynamic sealing(6), first of static seal(7)And second static seal(8), the guide pin bushing(2)It is arranged on Cylinder body(1)It is interior and pass through card key(3)With cylinder body(1)It is fixedly connected, piston rod(4)With guide pin bushing(2)Between it is dynamic close by first Envelope(5)With second dynamic sealing(6)Sealed, cylinder body(1)With guide pin bushing(2)Between pass through first of static seal(7)With second Road static seal(8)Sealed, it is characterised in that:First of dynamic sealing(5)With second dynamic sealing(6)Between guide pin bushing (2)Inner surface is provided with annular collection trough I(13), first of static seal(7)With second static seal(8)Between guide pin bushing (2)Outer surface is provided with annular collection trough II(14), annular collection trough I(13)With annular collection trough II(14)Between be provided with through hole Ⅰ(15), with annular collection trough II(14)Corresponding cylinder body(1)It is provided with through hole II(16), through hole II(16)Outside with connecing Head(9)Connection, joint(9)Pass through drainage tube(11)With leakage of oil collection vessel(12)Connection.
2. the anti-leakage device of hydraulic cylinder as claimed in claim 1, it is characterised in that:The joint(9)With drainage tube(11)It Between be provided with switch valve(10).
CN201720230233.XU 2017-03-10 2017-03-10 A kind of anti-leakage device of hydraulic cylinder Withdrawn - After Issue CN206608398U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720230233.XU CN206608398U (en) 2017-03-10 2017-03-10 A kind of anti-leakage device of hydraulic cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720230233.XU CN206608398U (en) 2017-03-10 2017-03-10 A kind of anti-leakage device of hydraulic cylinder

Publications (1)

Publication Number Publication Date
CN206608398U true CN206608398U (en) 2017-11-03

Family

ID=60164942

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720230233.XU Withdrawn - After Issue CN206608398U (en) 2017-03-10 2017-03-10 A kind of anti-leakage device of hydraulic cylinder

Country Status (1)

Country Link
CN (1) CN206608398U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762963A (en) * 2017-03-10 2017-05-31 中建材(洛阳)节能科技有限公司 A kind of anti-leakage device of hydraulic cylinder
CN110332274A (en) * 2019-07-28 2019-10-15 天津市双象工程液压件有限责任公司 A kind of hydraulic cylinder with permeability alarm function
CN110388351A (en) * 2019-07-28 2019-10-29 天津市双象工程液压件有限责任公司 A kind of hydraulic cylinder with leakproofness prompt facility

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762963A (en) * 2017-03-10 2017-05-31 中建材(洛阳)节能科技有限公司 A kind of anti-leakage device of hydraulic cylinder
CN110332274A (en) * 2019-07-28 2019-10-15 天津市双象工程液压件有限责任公司 A kind of hydraulic cylinder with permeability alarm function
CN110388351A (en) * 2019-07-28 2019-10-29 天津市双象工程液压件有限责任公司 A kind of hydraulic cylinder with leakproofness prompt facility

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AV01 Patent right actively abandoned

Granted publication date: 20171103

Effective date of abandoning: 20190111

AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20171103

Effective date of abandoning: 20190115

AV01 Patent right actively abandoned