CN108240368A - Hydraulic cylinder sealing device and installation method based on rack pinion - Google Patents
Hydraulic cylinder sealing device and installation method based on rack pinion Download PDFInfo
- Publication number
- CN108240368A CN108240368A CN201611224599.2A CN201611224599A CN108240368A CN 108240368 A CN108240368 A CN 108240368A CN 201611224599 A CN201611224599 A CN 201611224599A CN 108240368 A CN108240368 A CN 108240368A
- Authority
- CN
- China
- Prior art keywords
- rack
- cylinder barrel
- gear
- cylinder
- hydraulic cylinder
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000009434 installation Methods 0.000 title claims abstract description 10
- 230000001050 lubricating effect Effects 0.000 claims abstract description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 6
- 238000006396 nitration reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
-
- 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
- F15B15/1428—Cylinders
Abstract
The present invention relates to a kind of hydraulic cylinder sealing devices and installation method based on rack pinion.Seepage often occurs for the hydraulic cylinder for the rack pinion that engineering equipment field uses at present, when use, and oil leak can all occur in the equipment for having stylish installation, seriously affect the use of mechanical equipment.Its composition of the invention includes:Gear housing（1）Cylinder barrel is installed in the gear housing base apertures（3）, rack is installed in the cylinder barrel（2）, the rack both ends are respectively provided with groove, YX sealing rings are separately installed in the groove（6）, support ring（7）, the YX sealing rings are placed on the support ring front end, the cylinder barrel both ends by screw thread respectively with cylinder barrel lid（5）It connects, O-ring seals is installed at the cylinder barrel lid inner groovy（4）, the cylinder barrel bottom centre position is equipped with lubricating cup（8）.The present invention is used for hydraulic cylinder sealing device and installation method based on rack pinion.
Description
Technical field：
The present invention relates to engineering mechanical device fields, and in particular to a kind of hydraulic cylinder sealing device based on rack pinion and
Installation method.
Background technology：
Seepage often occurs for the hydraulic cylinder for the rack pinion that engineering equipment field uses at present, when use, sometimes
Oil leak can all occur in the equipment newly installed, seriously affect the use of mechanical equipment.This product mainly solves rack-and-pinion biography
Dynamic hydraulic cylinder seal leakage problem more reasonably will be configured sealing element in the structure, ensure that in cylinder barrel
Gap uniformity between diameter and rack, while to internal diameter of cylinder, rack outer diameter show the restriction of processing, it can be ensured that it sets
It is standby oil leakage phenomenon do not occur in any applying working condition situation lower sealing device.
Invention content：
The object of the present invention is to provide a kind of hydraulic cylinder sealing devices and installation method based on rack pinion.
Above-mentioned purpose is realized by following technical scheme：
A kind of hydraulic cylinder sealing device based on rack pinion, composition include：Gear housing, the gear housing bottom
Cylinder barrel in portion hole is installed, is installed with rack in the cylinder barrel, the rack both ends are respectively provided with groove, in the groove
YX sealing rings, support ring are separately installed with, the YX sealing rings are placed on the support ring front end, the cylinder barrel both ends
It is connect respectively with cylinder barrel lid by screw thread, O-ring seals is installed at the cylinder barrel lid inner groovy, in the cylinder barrel bottom
Between position lubricating cup is installed.
The hydraulic cylinder sealing device based on rack pinion is installed with connecting shaft in the gear housing, institute
The connecting shaft stated is connect by the key of both sides with gear, and the gear is engaged with the rack.
The hydraulic cylinder sealing device based on rack pinion, the gear and the rack center carpenters square
Very little tolerance be scholar 0.10mm, the internal diameter of cylinder chromium plating, layers of chrome thickness be 0.05-0.07 mm, the rack outer surface into
Row Nitrizing Treatment, depth of nitration are 0.06-0.10 mm.
A kind of hydraulic cylinder sealing device and installation method based on rack pinion, this method comprises the following steps：It is first
The cylinder barrel cleaned up was mounted in the hole below gear-box before this, was connected using interference fit, interference volume 0.02-
0.06mm, rack both ends change into fillet, install YX sealing rings, support ring in one end of rack, rack then is pushed into cylinder
In cylinder, the opening of the tooth direction of rack alignment cylinder barrel, i.e., and gear engagement position, by the YX sealing rings of the rack other end,
Support ring installs, and rack is pushed into cylinder barrel using tool；
Then one end of the connecting shaft by the key of both sides with gear is connect, can ensures that connecting shaft is connect surely with gear using double bond
Gu then the gear shaft connected is mounted in gear-box, engage wheel and rack, connecting shaft axial direction and cylinder barrel level side
To being mutually perpendicular to, the other end of connecting shaft passes through the hole in gear-box to be connect with mechanical equipment.
Advantageous effect：
1. the present invention is a kind of hydraulic cylinder sealing device based on rack pinion, mainly solves the liquid of rack pinion
Compressing cylinder seal leakage problem, is in this configuration reasonably configured sealing element, ensure that internal diameter of cylinder and rack it
Between gap uniformity, while internal diameter of cylinder, rack outer diameter have been carried out showing to handle for the various applying working conditions of mechanical equipment,
Ensure that equipment oil seepage phenomena does not occur in any applying working condition situation lower sealing device.
2. sealing of the present invention between cylinder barrel and rack is using YX sealing rings, while face is furnished with support ring behind, should
The setting of structure can ensure equipment sealing while also ensure that the gap between cylinder barrel and rack does not change, ensure device
Sealing effect.
3. the YX sealing rings of the present invention have two seals lip, and the lip packing that outer diameter is tight fit, twice lip
There is additional lubricant between mouthful, therefore prevent friction and wear significantly, use the sealing ring material as polyurethane, wear-resisting pole
Good, impact resistance, compressive deformation is small, suitable for most harsh operating condition, can reach good sealing effect.
4. the support ring material of the present invention is played a supporting role in the apparatus for polytetrafluoroethylene (PTFE), and ensure cylinder barrel with
Gap uniformity between rack, the material have excellent chemical stability, corrosion resistance, leakproofness, high lubrication non-stick, electricity
Insulating properties and good anti-aging endurance.
5. the internal diameter of cylinder of the present invention makes layers of chrome thickness be 0.05-0.07 mm using chromium plating, wherein chrome layer has
Preferable heat resistance, wearability, friction coefficient are small, and when layers of chrome is set as 0.05-0.07 mm thickness, chromium plating performance is most
Good, chromium plating will not fall off.
6. show outside the rack of the present invention using Nitrizing Treatment, it is hard with very high surface by the rack of Nitrizing Treatment
Degree, higher wearability, shock resistance is good, can effectively ensure that the accuracy of mesh of gear.
Description of the drawings：
Attached drawing 1 is the structure diagram of the present invention.
Specific embodiment：
Embodiment 1：
A kind of hydraulic cylinder sealing device based on rack pinion, composition include：Gear housing 1, the gear housing
Cylinder barrel 3 in base apertures is installed, rack 2 is installed in the cylinder barrel, the rack both ends are respectively provided with groove, and described is recessed
YX sealing rings 6, support ring 7 are separately installed in slot, the YX sealing rings are placed on the support ring front end, the cylinder
Cylinder both ends are connect by screw thread with cylinder barrel lid 5 respectively, and O-ring seals 4, the cylinder are equipped at the cylinder barrel lid inner groovy
Cylinder bottom centre position is equipped with lubricating cup 8.
Embodiment 2：
Hydraulic cylinder sealing device described in embodiment 1 based on rack pinion is installed with connecting shaft in the gear housing
11, the connecting shaft is connect by the key 10 of both sides with gear 9, and the gear is engaged with the rack.
Embodiment 3：
The hydraulic cylinder sealing device based on rack pinion described in embodiment 2, the gear and the rack center
Away from dimensional tolerance be scholar 0.10mm, the internal diameter of cylinder chromium plating, layers of chrome thickness be 0.05-0.07 mm, the rack appearance
Face carries out Nitrizing Treatment, and depth of nitration is 0.06-0.10 mm.
Embodiment 3：
A kind of installation method of the hydraulic cylinder sealing device based on rack pinion, this method will clean up first
Cylinder barrel is mounted in the hole below gear-box, is connected using interference fit, interference volume 0.02-0.06mm, rack both ends change into circle
Angle installs YX sealing rings, support ring in one end of rack, then rack is pushed into cylinder barrel, the tooth direction alignment of rack
That is, and gear engagement position the opening of cylinder barrel, installs by the YX sealing rings of the rack other end, support ring, uses tool
Rack is pushed into cylinder barrel；
Then one end of the connecting shaft by the key of both sides with gear is connect, can ensures that connecting shaft is connect surely with gear using double bond
Gu then the gear shaft connected is mounted in gear-box, engage wheel and rack, connecting shaft axial direction and cylinder barrel level side
To being mutually perpendicular to, the other end of connecting shaft passes through the hole in gear-box to be connect with mechanical equipment.
Claims (4)
1. a kind of hydraulic cylinder sealing device based on rack pinion, composition includes：Gear housing, it is characterized in that：It is described
Gear housing base apertures in cylinder barrel is installed, rack is installed in the cylinder barrel, the rack both ends are respectively provided with groove,
YX sealing rings, support ring are separately installed in the groove, the YX sealing rings are placed on the support ring front end, institute
The cylinder barrel both ends stated are connect by screw thread with cylinder barrel lid respectively, and O-ring seals are equipped at the cylinder barrel lid inner groovy, described
Cylinder barrel bottom centre position lubricating cup is installed.
2. the hydraulic cylinder sealing device according to claim 1 based on rack pinion, it is characterized in that：The gear
Connecting shaft is installed in babinet, the connecting shaft is connect by the key of both sides with gear, and the gear is nibbled with the rack
It closes.
3. the hydraulic cylinder sealing device according to claim 2 based on rack pinion, it is characterized in that：The gear
It is scholar 0.10mm with the rack centre-to-centre spacing dimensional tolerance, the internal diameter of cylinder chromium plating, layers of chrome thickness is 0.05-0.07
Mm, the rack outer surface carry out Nitrizing Treatment, and depth of nitration is 0.06-0.10 mm.
4. a kind of installation side of hydraulic cylinder sealing device based on rack pinion using described in one of claim 1-3
Method, it is characterized in that：This method comprises the following steps：
It is that the cylinder barrel cleaned up is mounted in the hole below gear-box first, is connected using interference fit, interference volume
0.02-0.06mm, rack both ends change into fillet, install YX sealing rings, support ring in one end of rack, are then pushed into rack
That is, and gear engagement position into cylinder barrel, the opening of the tooth direction of rack alignment cylinder barrel, is sealed by the YX of the rack other end
Circle, support ring install, and rack is pushed into cylinder barrel using tool；
Then one end of the connecting shaft by the key of both sides with gear is connect, can ensures that connecting shaft is connect surely with gear using double bond
Gu then the gear shaft connected is mounted in gear-box, engage wheel and rack, connecting shaft axial direction and cylinder barrel level side
To being mutually perpendicular to, the other end of connecting shaft passes through the hole in gear-box to be connect with mechanical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611224599.2A CN108240368A (en) | 2016-12-27 | 2016-12-27 | Hydraulic cylinder sealing device and installation method based on rack pinion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611224599.2A CN108240368A (en) | 2016-12-27 | 2016-12-27 | Hydraulic cylinder sealing device and installation method based on rack pinion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108240368A true CN108240368A (en) | 2018-07-03 |
Family
ID=62702256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611224599.2A Pending CN108240368A (en) | 2016-12-27 | 2016-12-27 | Hydraulic cylinder sealing device and installation method based on rack pinion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108240368A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204851838U (en) * | 2015-05-29 | 2015-12-09 | 徐州徐工液压件有限公司 | YT type is high reliability oscillating leveling pneumatic cylinder for fire engine |
| CN105179371A (en) * | 2015-08-31 | 2015-12-23 | 徐州重型机械有限公司 | Leveling gear and rack type swing hydraulic cylinder and fire engine using structure |
| CN209212686U (en) * | 2018-12-26 | 2019-08-06 | 山东星辉航空液压机械有限公司 | A kind of pressure release type oscillating oil cylinder |
| CN114526208A (en) * | 2022-02-23 | 2022-05-24 | 重庆津源机械制造有限公司 | Energy-saving and environment-friendly oil pipe conveying oil cylinder |
-
2016
- 2016-12-27 CN CN201611224599.2A patent/CN108240368A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204851838U (en) * | 2015-05-29 | 2015-12-09 | 徐州徐工液压件有限公司 | YT type is high reliability oscillating leveling pneumatic cylinder for fire engine |
| CN105179371A (en) * | 2015-08-31 | 2015-12-23 | 徐州重型机械有限公司 | Leveling gear and rack type swing hydraulic cylinder and fire engine using structure |
| CN209212686U (en) * | 2018-12-26 | 2019-08-06 | 山东星辉航空液压机械有限公司 | A kind of pressure release type oscillating oil cylinder |
| CN114526208A (en) * | 2022-02-23 | 2022-05-24 | 重庆津源机械制造有限公司 | Energy-saving and environment-friendly oil pipe conveying oil cylinder |
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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 |
Application publication date: 20180703 |
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| WD01 | Invention patent application deemed withdrawn after publication |