CN107989994A - A kind of power takeoff air-control device - Google Patents
A kind of power takeoff air-control device Download PDFInfo
- Publication number
- CN107989994A CN107989994A CN201711299466.6A CN201711299466A CN107989994A CN 107989994 A CN107989994 A CN 107989994A CN 201711299466 A CN201711299466 A CN 201711299466A CN 107989994 A CN107989994 A CN 107989994A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder block
- piston rod
- cylinder
- control device
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The present invention relates to a kind of power takeoff air-control device.It includes cylinder block, cylinder head is equipped with the upper shed of cylinder block, the piston being matched therewith is equipped with cylinder block, piston is equipped with piston mandril, the lower section of piston is equipped with piston rod, the bar portion of piston mandril stretches into the female end of piston rod and is threadedly coupled with it, the male end of piston rod is pierced by from the under shed of cylinder block, resetting spring is equipped between top land and cylinder head inside top, the male end of piston rod stretches into shift fork head and is threadedly coupled with it, and the under shed madial wall of cylinder block is equipped with and the matched dust-proof seal ring of piston rod.The present invention is reasonable in design, it is easy to use, resetting spring is placed in inside cylinder block, avoid by external environment influence, improve reliability, the under shed madial wall of cylinder block be equipped with the matched dust-proof seal ring of piston rod, prevent outside dust and other impurities enter cylinder block, extend the service life of cylinder.
Description
Technical field
The present invention relates to a kind of power takeoff air-control device.
Background technology
One axis power takeoff of speed changer is mainly used on fire fighting truck, more demanding to part reliability.In the prior art
The structure of power takeoff air-control device is：Cylinder piston rod one end is fixed with piston, and the other end is connected with shift fork, and cylinder leads to when putting into gear
Gas drives piston motion, and piston driving piston rod, shift fork movement realization are put into gear, and cylinder is died when plucking gear, by being placed in piston rod
On spring return function.Since spring is placed in outside cylinder, and hold between piston rod and cylinder without dust-proof sealing device, long-time service
Cylinder damage is easily caused, can not normally put into gear, pluck gear.Therefore, existing power takeoff air-control device cannot because design reasons
Meet the applying working condition of fire-fighting domain.
The content of the invention
The present invention provides a kind of power takeoff air-control device, it is reasonable in design, easy to use, and resetting spring is placed in gas
Cylinder interior, avoids by external environment influence, improves reliability, and the under shed madial wall of cylinder block is equipped with and piston rod phase
The dust-proof seal ring of cooperation, prevents that dust and grease enter inside cylinder block during piston rod movement, extend cylinder uses the longevity
Life, solves problems of the prior art.
The present invention is that technical solution is used by solving above-mentioned technical problem：It includes cylinder block, is opened in cylinder block
Cylinder head is equipped with mouthful, the piston being matched therewith is equipped with cylinder block, piston top, the cylinder block side wall of lower section are equipped with logical
Stomata, air inlet, piston are equipped with piston mandril, and piston mandril includes head and with externally threaded bar portion, piston mandril
Head is connected in top land, and the bar portion of piston mandril stretches into piston along piston longitudinal center line and is pierced by from its bottom, living
The lower section of plug is equipped with piston rod, and one end of piston rod is equipped with internal thread, and the other end of piston rod is equipped with external screw thread, piston mandril
Bar portion stretches into the female end of piston rod and is threadedly coupled with it, and the male end of piston rod is pierced by from the under shed of cylinder block,
Resetting spring is equipped between top land and cylinder head inside top, resetting spring is socketed on the head of piston mandril, piston
The male end of bar stretches into shift fork head and is threadedly coupled with it, and the under shed madial wall of cylinder block is equipped with to match with piston rod
The dust-proof seal ring of conjunction.
The circumferential side wall of the piston is equipped with and the matched guide sleeve of cylinder block madial wall.
The circumferential side wall of the piston is equipped with and the matched sealing ring of cylinder block madial wall.
The under shed madial wall of the cylinder block is equipped with and the matched bushing of piston rod.
Screwed connecting hole is equipped with the top of the cylinder head.
The piston rod male end of the shift fork inner portion is equipped with locking nut.
The cylinder head and cylinder block, which are equipped with, makes the bolt hole that stay bolt passes through, the bolt hole in cylinder head and cylinder block
It is interior to be equipped with stay bolt.
The bar portion of the piston mandril is equipped with and the matched O-ring of piston.
The present invention using the above scheme, has the following advantages：
1st, resetting spring is placed in inside cylinder block, is avoided by external environment influence, improves reliability, in the under shed of cylinder block
Side wall be equipped with the matched dust-proof seal ring of piston rod, dust and grease enter in cylinder block when preventing piston rod movement
Portion, extends the service life of cylinder.
2nd, the circumferential side wall of piston is equipped with and both play the guiding role with the matched guide sleeve of cylinder block madial wall, guide sleeve
Friction can be reduced again, improve piston and the conformability of cylinder block.
3rd, the circumferential side wall of piston be equipped with the matched sealing ring of cylinder block madial wall, can play improve piston with
The air-tightness of cylinder block mating surface.
4th, the under shed madial wall of cylinder block is equipped with uses wear-resistant material system with the matched bushing of piston rod, bushing
Make, the reliability and service life of cylinder block can be effectively increased.
5th, screwed connecting hole is equipped with the top of cylinder head, for connecting signaling switch.
6th, the piston rod male end of shift fork inner portion is equipped with locking nut, by adjusting locking nut outside piston rod
The installation length of shift fork can be just adjusted flexibly in the position of the end of thread.
7th, cylinder head and cylinder block, which are equipped with, makes the bolt hole that stay bolt passes through, in the bolt hole in cylinder head and cylinder block
Equipped with stay bolt, the structure for being connected as one cylinder head and cylinder block by stay bolt is convenient to pacify installation and dismantling on power takeoff
Unload.
8th, the bar portion of piston mandril is equipped with and the matched O-ring of piston, it is possible to increase piston mandril and piston junction
Air-tightness.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is the axial schematic cross-sectional view of the present invention.
In figure, 1, cylinder head, 2, resetting spring, 3, piston, 4, cylinder block, 5, piston mandril, 6, piston rod, 7, locking screw
Mother, 8, shift fork, 9, dust-proof seal ring, 10, bushing, 11, sealing ring, 12, guide sleeve, 13, O-ring, 14, stay bolt, 15, ventilation
Hole, 16, air inlet, 17, connecting hole.
Embodiment
In order to clarify the technical characteristics of the invention, below by embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.
As shown in Fig. 1~Fig. 2, the present invention includes cylinder block 4, and cylinder head 1, cylinder block 4 are equipped with the upper shed of cylinder block 4
It is interior to be equipped with venthole 15, air inlet 16 equipped with the piston 3 being matched therewith, the top of piston 3,4 side wall of cylinder block of lower section.It is living
Plug 3 is equipped with piston mandril 5, and piston mandril 5 includes head and is connected in externally threaded bar portion, the head of piston mandril 5
The top of piston 3, the bar portion of piston mandril 5 stretch into piston 3 along 3 longitudinal center line of piston and are pierced by from its bottom.Under piston 3
Side is equipped with piston rod 6, and one end of piston rod 6 is equipped with internal thread, and the other end of piston rod 6 is equipped with external screw thread, the bar of piston mandril 5
Portion stretches into the female end of piston rod 6 and is threadedly coupled with it, and the under shed of male end from the cylinder block 4 of piston rod 6 is pierced by.
Resetting spring 2 is equipped between the top of piston 3 and 1 inside top of cylinder head, resetting spring 2 is socketed on the head of piston mandril 5.
The male end of piston rod 6 stretches into 8 head of shift fork and is threadedly coupled with it.The under shed madial wall of cylinder block 4 is equipped with and work
The matched dust-proof seal ring 9 of stopper rod 6.
Resetting spring 2 is placed in inside cylinder block 4 by the present invention, is avoided by external environment influence, is improved reliability, cylinder
The under shed madial wall of body 4 is equipped with dust-proof seal ring 9 matched with piston rod 6, prevents dust and oil when piston rod 6 moves
Water enters inside cylinder block 4, extends the service life of cylinder.
The circumferential side wall of piston 3 is equipped with both had played guiding with the matched guide sleeve 12 of 4 madial wall of cylinder block, guide sleeve 12
Effect can reduce friction again, improve the conformability of piston 3 and cylinder block 4.
The circumferential side wall of piston 3 be equipped with the matched sealing ring 11 of 4 madial wall of cylinder block, raising piston can be played
3 with the air-tightness of 4 mating surface of cylinder block.
The under shed madial wall of cylinder block 4 is equipped with bushing 10 matched with piston rod 6, and bushing 10 uses wear-resistant material
Manufacture, can be effectively increased the reliability and service life of cylinder block 4.
The top of cylinder head 1 is equipped with screwed connecting hole 17, for connecting signaling switch.
6 male end of piston rod of 8 inner portion of shift fork is equipped with locking nut 7, by adjusting locking nut 7 in piston rod
The installation length of shift fork 8 can be just adjusted flexibly in the position of 6 male ends.
Cylinder head 1 and cylinder block 4, which are equipped with, makes the bolt hole that stay bolt passes through, the bolt hole in cylinder head 1 and cylinder block 4
Interior to be equipped with stay bolt 14, the structure for being connected as one cylinder head 1 and cylinder block 4 by stay bolt 14 is convenient on power takeoff
Installation and removal.
The bar portion of piston mandril 5 is equipped with O-ring 13 matched with piston 3, it is possible to increase piston mandril 5 connects with piston 3
Connect the air-tightness at place.
Above-mentioned embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or conversion made to embodiment of the present invention are all fallen within protection scope of the present invention.
Part is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.
Claims (8)
- A kind of 1. power takeoff air-control device, it is characterised in that：Including cylinder block, cylinder head, gas are equipped with the upper shed of cylinder block The piston being matched therewith is equipped with cylinder body, piston top, the cylinder block side wall of lower section are equipped with venthole, air inlet, piston Piston mandril is equipped with, piston mandril includes head and is connected in piston top with externally threaded bar portion, the head of piston mandril Portion, the bar portion of piston mandril stretch into piston along piston longitudinal center line and are pierced by from its bottom, and the lower section of piston is equipped with piston Bar, one end of piston rod are equipped with internal thread, and the other end of piston rod is equipped with external screw thread, and the bar portion of piston mandril stretches into piston rod Female end is simultaneously threadedly coupled with it, and the male end of piston rod is pierced by from the under shed of cylinder block, top land and cylinder head Resetting spring is equipped between inside top, resetting spring is socketed on the head of piston mandril, and the male end of piston rod stretches into Shift fork head is simultaneously threadedly coupled with it, and the under shed madial wall of cylinder block is equipped with and the matched dust-proof seal ring of piston rod.
- A kind of 2. power takeoff air-control device according to claim 1, it is characterised in that：Set in the circumferential side wall of the piston Have and the matched guide sleeve of cylinder block madial wall.
- A kind of 3. power takeoff air-control device according to claim 1, it is characterised in that：Set in the circumferential side wall of the piston Have and the matched sealing ring of cylinder block madial wall.
- A kind of 4. power takeoff air-control device according to claim 1, it is characterised in that：On the inside of the under shed of the cylinder block Wall is equipped with and the matched bushing of piston rod.
- A kind of 5. power takeoff air-control device according to claim 1, it is characterised in that：It is equipped with and carries at the top of the cylinder head The connecting hole of screw thread.
- A kind of 6. power takeoff air-control device according to claim 1, it is characterised in that：The piston of the shift fork inner portion Bar male end is equipped with locking nut.
- A kind of 7. power takeoff air-control device according to claim 1, it is characterised in that：Set in the cylinder head and cylinder block There is a bolt hole for passing through stay bolt, stay bolt is equipped with the bolt hole in cylinder head and cylinder block.
- A kind of 8. power takeoff air-control device according to claim 1, it is characterised in that：The bar portion of the piston mandril is equipped with With the matched O-ring of piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711299466.6A CN107989994A (en) | 2017-12-08 | 2017-12-08 | A kind of power takeoff air-control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711299466.6A CN107989994A (en) | 2017-12-08 | 2017-12-08 | A kind of power takeoff air-control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107989994A true CN107989994A (en) | 2018-05-04 |
Family
ID=62035915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711299466.6A Pending CN107989994A (en) | 2017-12-08 | 2017-12-08 | A kind of power takeoff air-control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107989994A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5845545A (en) * | 1993-02-17 | 1998-12-08 | Eaton Corporation | Tamper resistant cover for transmission shift |
| CN201382146Y (en) * | 2009-03-12 | 2010-01-13 | 襄樊江山汽车变速箱有限责任公司 | Three-position gear shifting cylinder |
| CN201651289U (en) * | 2010-04-16 | 2010-11-24 | 陕西法士特齿轮有限责任公司 | Automobile transmission cylinder |
| CN201728469U (en) * | 2010-07-07 | 2011-02-02 | 宁波新州焊接设备有限公司 | Electrode cylinder of welder |
| CN102748464A (en) * | 2012-06-27 | 2012-10-24 | 陕西法士特齿轮有限责任公司 | Novel three-position cylinder executing mechanism of auxiliary box |
| CN202597681U (en) * | 2012-03-28 | 2012-12-12 | 陕西法士特齿轮有限责任公司 | Speed changer range gear mechanism with power take-off |
| CN202612599U (en) * | 2012-01-20 | 2012-12-19 | 张大刚 | Shift air cylinder of transmission gear |
| CN202971861U (en) * | 2012-11-30 | 2013-06-05 | 綦江齿轮传动有限公司 | Post-positioned power take-off (PTO) with built-in cylinder |
| CN103335098A (en) * | 2013-06-30 | 2013-10-02 | 贵州凯星液力传动机械有限公司 | Air pressure shift control mechanism |
| CN104061281A (en) * | 2014-06-20 | 2014-09-24 | 陕西法士特汽车传动集团有限责任公司 | Pneumatic geared spring out-of-gear biaxial power takeoff |
| CN104265839A (en) * | 2014-09-19 | 2015-01-07 | 安徽江淮汽车股份有限公司 | Power takeoff and power takeoff assembly |
| CN104747706A (en) * | 2015-03-24 | 2015-07-01 | 陕西法士特汽车传动集团有限责任公司 | Transmission auxiliary box synchronizer protection system with power takeoff |
| CN205896139U (en) * | 2016-07-29 | 2017-01-18 | 中国第一汽车股份有限公司 | Heavy derailleur odd -side gear shift cylinder assembly |
| CN206347101U (en) * | 2016-12-29 | 2017-07-21 | 济南夫驰科技有限公司 | Handle stop cylinder |
-
2017
- 2017-12-08 CN CN201711299466.6A patent/CN107989994A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5845545A (en) * | 1993-02-17 | 1998-12-08 | Eaton Corporation | Tamper resistant cover for transmission shift |
| CN201382146Y (en) * | 2009-03-12 | 2010-01-13 | 襄樊江山汽车变速箱有限责任公司 | Three-position gear shifting cylinder |
| CN201651289U (en) * | 2010-04-16 | 2010-11-24 | 陕西法士特齿轮有限责任公司 | Automobile transmission cylinder |
| CN201728469U (en) * | 2010-07-07 | 2011-02-02 | 宁波新州焊接设备有限公司 | Electrode cylinder of welder |
| CN202612599U (en) * | 2012-01-20 | 2012-12-19 | 张大刚 | Shift air cylinder of transmission gear |
| CN202597681U (en) * | 2012-03-28 | 2012-12-12 | 陕西法士特齿轮有限责任公司 | Speed changer range gear mechanism with power take-off |
| CN102748464A (en) * | 2012-06-27 | 2012-10-24 | 陕西法士特齿轮有限责任公司 | Novel three-position cylinder executing mechanism of auxiliary box |
| CN202971861U (en) * | 2012-11-30 | 2013-06-05 | 綦江齿轮传动有限公司 | Post-positioned power take-off (PTO) with built-in cylinder |
| CN103335098A (en) * | 2013-06-30 | 2013-10-02 | 贵州凯星液力传动机械有限公司 | Air pressure shift control mechanism |
| CN104061281A (en) * | 2014-06-20 | 2014-09-24 | 陕西法士特汽车传动集团有限责任公司 | Pneumatic geared spring out-of-gear biaxial power takeoff |
| CN104265839A (en) * | 2014-09-19 | 2015-01-07 | 安徽江淮汽车股份有限公司 | Power takeoff and power takeoff assembly |
| CN104747706A (en) * | 2015-03-24 | 2015-07-01 | 陕西法士特汽车传动集团有限责任公司 | Transmission auxiliary box synchronizer protection system with power takeoff |
| CN205896139U (en) * | 2016-07-29 | 2017-01-18 | 中国第一汽车股份有限公司 | Heavy derailleur odd -side gear shift cylinder assembly |
| CN206347101U (en) * | 2016-12-29 | 2017-07-21 | 济南夫驰科技有限公司 | Handle stop cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104989778B (en) | A kind of novel buffer | |
| CN107989994A (en) | A kind of power takeoff air-control device | |
| CN207080480U (en) | A kind of bolt | |
| CN206268166U (en) | A kind of engineering machinery oil hydraulic cylinder | |
| CN202228462U (en) | Cylindrical adjustable cylinder | |
| CN104154164B (en) | A kind of damping oil cylinder for medium-heavy automobile driver's cab turnover | |
| CN207521755U (en) | A kind of valve drilling equipment of stable connection | |
| CN204041685U (en) | A kind of dowel screw | |
| CN207830261U (en) | A kind of high thrust is compound singly to stretch hydraulic cylinder | |
| CN208995012U (en) | Super-pressure tower crane shoring | |
| CN207961375U (en) | A kind of engineering machinery buffer | |
| CN203868022U (en) | Stable type hydraulic cylinder | |
| CN203230649U (en) | Hydraulic overturning oil cylinder | |
| CN207728339U (en) | Improved multifunctional blowout hookup | |
| CN210882305U (en) | Steering tie rod | |
| CN205446526U (en) | Self -discharging formula protection type air spring | |
| CN202543736U (en) | Automatic reducing type turnout point rail connection iron | |
| CN203023167U (en) | Tilt cylinder with guide sleeve structure | |
| CN105065731A (en) | Charging valve | |
| CN202946478U (en) | Oil cylinder, hydraulic system and engineering machinery | |
| CN205936484U (en) | Prevent spouting formula beam -pumping unit packing box and press cap | |
| CN205423503U (en) | Take car shift cable of antifriction, shock attenuation and dustproof function | |
| CN204532213U (en) | A kind of well head frizing self-sealing head device of improvement | |
| CN205135510U (en) | Novel middling pressure polished rod sealing ware | |
| CN103821792A (en) | Stable hydraulic cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180504 |
|
| RJ01 | Rejection of invention patent application after publication |