CN110360181A - A kind of cylinder cap and the hydraulic cylinder for being equipped with this cylinder cap - Google Patents
A kind of cylinder cap and the hydraulic cylinder for being equipped with this cylinder cap Download PDFInfo
- Publication number
- CN110360181A CN110360181A CN201910685978.9A CN201910685978A CN110360181A CN 110360181 A CN110360181 A CN 110360181A CN 201910685978 A CN201910685978 A CN 201910685978A CN 110360181 A CN110360181 A CN 110360181A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cylinder cap
- hydraulic cylinder
- sealing
- annular
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
- F15B15/1442—End cap sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Abstract
The invention discloses cylinder cap and it is equipped with the hydraulic cylinder of this cylinder cap, belonging to hydraulic cylinder technical field includes cylinder cap ontology, cylinder cap ontology has sealing annular surface, it is characterized by: the middle part of sealing annular surface has the deep gouge of annular, the bottom of the deep gouge of annular is equipped with annular collection chamber, and deep gouge is divided into the primary sealing area on the inside of proximal cover ontology and the secondary sealing area by proximal cover outer body portion for annular surface is sealed；End cap ontology is equipped with emptying duct, and the one end in emptying duct is connected to collection chamber, and the other end in emptying duct is connected to the outside of end cap ontology, screw thread closure is equipped at the outer openings in oil-collecting duct.The hydraulic cylinder sealing effect for being equipped with this cylinder cap is good, and can show the micro- permeability situation of hydraulic cylinder, convenient for safeguarding.
Description
Technical field
The invention belongs to hydraulic cylinder technical field more particularly to a kind of cylinder caps and the hydraulic cylinder for being equipped with this cylinder cap.
Background technique
Hydraulic cylinder is indispensable functional component on large-scale engineering machinery.Hydraulic cylinder includes gray iron and cylinder rod, cylinder
Lid by fastener is fixed on cylinder body lower end, and cylinder rod is inserted on cylinder body, the inner end fixed piston portion of cylinder rod, and piston portion is by cylinder
The cavity in internal portion is separated into two pressure chambers.
After hydraulic cylinder long-term work, because of reasons such as sealing element agings, the junction of cylinder body and cylinder cap will appear sealing and lose
The case where imitating oil leak, once there is hydraulic oil leakage, not only can contaminated equipment, but also replace hydraulic cylinder and need temporarily to transfer transport
Deng influencing the normal operation of equipment.
Summary of the invention
In view of the problems of the existing technology, the present invention provides it is a kind of solve existing hydraulic cylinder sealing it is ineffective and
Seal failure judges the cylinder cap of the problem of poor in timeliness and is equipped with the hydraulic cylinder of this cylinder cap.
The invention is realized in this way a kind of hydraulic cylinder cylinder cap, including cylinder cap ontology, the cylinder cap ontology have sealing ring
Shape face, it is characterised in that: the middle part of the sealing annular surface has the deep gouge of annular, and the bottom of the deep gouge of the annular is equipped with ring
The sealing annular surface is divided into the primary sealing area on the inside of proximal cover ontology and leans on proximal cover sheet by shape collection chamber, the deep gouge
The secondary sealing area of external side；The end cap ontology is equipped with emptying duct, and the one end in the emptying duct is connected to the collection
Oil pocket, the other end in the emptying duct are connected to the outside of the end cap ontology, install at the outer openings in the oil-collecting duct
There is screw thread closure.
The present invention has the following technical effect that:
Compared to traditional technology, the seal section in the present invention between cylinder cap and cylinder body is divided into two sections by collection chamber, close to cylinder
The primary sealing area of lid inside is main seal section, is primarily subjected to the pressure of hydraulic oil, under its appearance damage leakproofness for a long time
After drop, primary sealing area meeting permeability, the hydraulic oil of leakage enters in collection chamber, and collection chamber plays the role of pressure buffer, in oil-collecting
Before cavity pressure reaches certain vertical, the sealing ring in secondary sealing area is not subject to hydraulic fluid pressure or impurity corrosion.Two
Section sealing surface, which staggeredly plays a role, cooperates collection chamber buffering effect, enables the sealing structure service life of the invention greatly prolong, reliability
By force.
Emptying duct can export the hydraulic oil leaked in collection chamber, reduce the compression of sealing ring in secondary sealing area,
And the seal failure Chengdu of primary sealing area can be judged according to The hydraulic oil in emptying duct, to make dimension to hydraulic cylinder in time
It repairs.
In the above-mentioned technical solutions, it is preferred that the screw thread blocks the interior perspective cylinder for being embedded in perforation screw thread and blocking both ends,
The both ends of the surface of the perspective cylinder are convex surface.Perspective cylinder is transparent and has amplification effect, can be visually observed that emptying duct
Interior oil mass is blocked without dismantling screw thread.
In the above-mentioned technical solutions, it is preferred that be provided with white suction at the screw thread closure in the emptying duct
Oilpaper.White oil-Absorbing Sheets can carry out intussusception to the micro oil mass in emptying duct and diffuse into face, and plant maintenance personnel is enabled to exist
Primary sealing area permeability can be visually observed that early period, prompt effect strong.
Another object of the present invention, provides a kind of hydraulic cylinder, and the hydraulic cylinder includes gray iron and piston rod, described
Cylinder cap is power any cylinder cap among the above.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cylinder cap in the present invention；
Fig. 2 is the structural schematic diagram of hydraulic cylinder in the present invention.
In figure, 1, cylinder cap ontology；2, deep gouge；3, collection chamber；4, primary sealing area；5, secondary sealing area；6, emptying duct；
7, screw thread blocks；8, cylinder is had an X-rayed；9, white oil-Absorbing Sheets；10, cylinder body；11, piston rod.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
To solve the drawbacks of existing hydraulic cylinder sealing is ineffective and seal failure judges poor in timeliness, the present invention is special
A kind of cylinder cap is provided and is equipped with the hydraulic cylinder of this cylinder cap, sealing effect of the present invention is good, and has the function of permeability indication.In order to
It further illustrates structure of the invention, it is as follows to be described with reference to the accompanying drawings book:
Embodiment one
Referring to Fig. 1, a kind of hydraulic cylinder cylinder cap, including cylinder cap ontology 1, the cylinder cap ontology have sealing annular surface.Institute
Stating sealing annular surface is cylinder cap and hydraulic cylinder body lower end face contact and the end face for installing sealing ring.In the sealing annular surface
Portion has the deep gouge 2 of annular, and the bottom of the deep gouge of the annular is equipped with annular collection chamber 3.The deep gouge is annular by the sealing
Face is divided into the primary sealing area 4 on the inside of proximal cover ontology and the secondary sealing area 5 by proximal cover outer body portion.
Annular deep gouge design matches the annular protrusion of section under hydraulic cylinder body, can equally add on the two sides of annular deep gouge
Sealing ring is filled, after by the segmentation of conventional seals face, sealing surface length is guaranteed by the design of lateral and vertical installation sealing ring
It does not shorten, guarantees sealing effect.
The end cap ontology is equipped with emptying duct 6, and the one end in the emptying duct is connected to the collection chamber, the emptying
The other end in duct is connected to the outside of the end cap ontology, and screw thread is equipped at the outer openings in the oil-collecting duct and blocks 7.
In the present embodiment, the screw thread blocks the interior perspective cylinder 8 for being embedded in perforation screw thread and blocking both ends, the perspective cylinder
Both ends of the surface be convex surface.Perspective cylinder is transparent and has amplification effect, and the oil mass that can be visually observed that in emptying duct is not necessarily to
Screw thread is dismantled to block.
White oil-Absorbing Sheets 9 are provided at the screw thread closure in the emptying duct.White oil-Absorbing Sheets can be to unloading
Micro oil mass in oilhole road carries out intussusception and diffuses into face, enables plant maintenance personnel early period can be straight in primary sealing area permeability
It observes with seeing, prompts effect strong.
Embodiment two
Referring to Fig. 2, a kind of hydraulic cylinder, the hydraulic cylinder includes cylinder body 10, cylinder cap and piston rod 11, and the cylinder cap is upper
State cylinder cap.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of hydraulic cylinder cylinder cap, including cylinder cap ontology, the cylinder cap ontology has sealing annular surface, it is characterised in that: described
The middle part for sealing annular surface has the deep gouge of annular, and the bottom of the deep gouge of the annular is equipped with annular collection chamber, and the deep gouge will
The sealing annular surface is divided into the primary sealing area on the inside of proximal cover ontology and the second sealing by proximal cover outer body portion
Face；The end cap ontology is equipped with emptying duct, and the one end in the emptying duct is connected to the collection chamber, the emptying duct
The other end is connected to the outside of the end cap ontology, and screw thread closure is equipped at the outer openings in the oil-collecting duct.
2. hydraulic cylinder cylinder cap according to claim 1, it is characterised in that: the screw thread blocks the interior perforation screw thread that is embedded in and blocks
The both ends of the surface of the perspective cylinder at both ends, the perspective cylinder are convex surface.
3. hydraulic cylinder cylinder cap according to claim 2, it is characterised in that: blocked in the emptying duct close to the screw thread
Place is provided with white oil-Absorbing Sheets.
4. a kind of hydraulic cylinder, it is characterised in that: the hydraulic cylinder includes gray iron and piston rod, and the cylinder cap is wanted for right
Seek any cylinder cap in 1,2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910685978.9A CN110360181A (en) | 2019-07-28 | 2019-07-28 | A kind of cylinder cap and the hydraulic cylinder for being equipped with this cylinder cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910685978.9A CN110360181A (en) | 2019-07-28 | 2019-07-28 | A kind of cylinder cap and the hydraulic cylinder for being equipped with this cylinder cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110360181A true CN110360181A (en) | 2019-10-22 |
Family
ID=68222274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910685978.9A Pending CN110360181A (en) | 2019-07-28 | 2019-07-28 | A kind of cylinder cap and the hydraulic cylinder for being equipped with this cylinder cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110360181A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100589499B1 (en) * | 2003-10-23 | 2006-06-14 | 에스엠씨 가부시키 가이샤 | Hydraulic driving apparatus having lubricating structure |
| CN202125485U (en) * | 2011-05-27 | 2012-01-25 | 深圳市新劲力机械有限公司 | Hydraulic cylinder end cap device |
| CN204357833U (en) * | 2014-11-25 | 2015-05-27 | 杭州荣力铸锻有限公司 | For the end cover of hydraulic jack |
| CN204985141U (en) * | 2015-08-14 | 2016-01-20 | 昆山奇力拓液压科技有限公司 | Slim sealed hydro -cylinder structure |
| CN105351508A (en) * | 2015-12-10 | 2016-02-24 | 陕西法士特齿轮有限责任公司 | Transparent oil plug for oil level observation hole |
| CN205533539U (en) * | 2016-04-12 | 2016-08-31 | 福建省龙岩盛通液压有限公司 | Hydraulic cylinder's leak protection structure |
| CN206000801U (en) * | 2016-08-15 | 2017-03-08 | 嘉兴米克气动设备有限公司 | A kind of cylinder vacuum seal structure |
| CN107269621A (en) * | 2017-06-27 | 2017-10-20 | 徐州永佳液压设备有限公司 | Splice self seal hydraulic cylinder barrel |
| CN108240371A (en) * | 2017-12-29 | 2018-07-03 | 苏州梅克卡斯汽车科技有限公司 | A kind of oil cylinder Oil Leakage Detecting method and detection device |
| CN207945155U (en) * | 2017-12-19 | 2018-10-09 | 东莞市杰镪五金制品有限公司 | A kind of five metalworking cylinder block of fluoroscopic examination compact |
| CN208935065U (en) * | 2018-10-16 | 2019-06-04 | 南京中人能源科技有限公司 | A kind of hydraulic cylinder with oil-leakage-prevention piston sealing device |
-
2019
- 2019-07-28 CN CN201910685978.9A patent/CN110360181A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100589499B1 (en) * | 2003-10-23 | 2006-06-14 | 에스엠씨 가부시키 가이샤 | Hydraulic driving apparatus having lubricating structure |
| CN202125485U (en) * | 2011-05-27 | 2012-01-25 | 深圳市新劲力机械有限公司 | Hydraulic cylinder end cap device |
| CN204357833U (en) * | 2014-11-25 | 2015-05-27 | 杭州荣力铸锻有限公司 | For the end cover of hydraulic jack |
| CN204985141U (en) * | 2015-08-14 | 2016-01-20 | 昆山奇力拓液压科技有限公司 | Slim sealed hydro -cylinder structure |
| CN105351508A (en) * | 2015-12-10 | 2016-02-24 | 陕西法士特齿轮有限责任公司 | Transparent oil plug for oil level observation hole |
| CN205533539U (en) * | 2016-04-12 | 2016-08-31 | 福建省龙岩盛通液压有限公司 | Hydraulic cylinder's leak protection structure |
| CN206000801U (en) * | 2016-08-15 | 2017-03-08 | 嘉兴米克气动设备有限公司 | A kind of cylinder vacuum seal structure |
| CN107269621A (en) * | 2017-06-27 | 2017-10-20 | 徐州永佳液压设备有限公司 | Splice self seal hydraulic cylinder barrel |
| CN207945155U (en) * | 2017-12-19 | 2018-10-09 | 东莞市杰镪五金制品有限公司 | A kind of five metalworking cylinder block of fluoroscopic examination compact |
| CN108240371A (en) * | 2017-12-29 | 2018-07-03 | 苏州梅克卡斯汽车科技有限公司 | A kind of oil cylinder Oil Leakage Detecting method and detection device |
| CN208935065U (en) * | 2018-10-16 | 2019-06-04 | 南京中人能源科技有限公司 | A kind of hydraulic cylinder with oil-leakage-prevention piston sealing device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191022 |