CN108533568A - Endless-track vehicle and its steering cylinder - Google Patents
Endless-track vehicle and its steering cylinder Download PDFInfo
- Publication number
- CN108533568A CN108533568A CN201810669961.XA CN201810669961A CN108533568A CN 108533568 A CN108533568 A CN 108533568A CN 201810669961 A CN201810669961 A CN 201810669961A CN 108533568 A CN108533568 A CN 108533568A
- Authority
- CN
- China
- Prior art keywords
- piston
- cavity
- steering cylinder
- chamber
- working chamber
- 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
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The present invention discloses a kind of steering cylinder of endless-track vehicle, including cylinder body, two cavitys arranged side by side and parallel are equipped in cylinder body, it is mounted on piston and piston rod in each cavity, each cavity includes the working chamber being sequentially communicated, reseting cavity and stretching chamber, limited step is provided between working chamber and reseting cavity, piston can be moved in working chamber and can be offseted with limited step enters reseting cavity to avoid piston, it is provided with installation step between reseting cavity and stretching chamber, the external part of piston rod stretches out cavity by stretching chamber, and it is set with resetting spring outside piston rod, the both ends of resetting spring offset with piston and installation step respectively.By the limit and installation of the component that two steps are realized, and the disengaging that hydraulic oil can be realized in two hydraulic fluid ports is only set, the part needed is few, simple and compact for structure, at low cost, is not necessarily to oil return pipe, reduces cost.Invention additionally discloses a kind of endless-track vehicles including above-mentioned steering cylinder.
Description
Technical field
The present invention relates to Vehicle Engineerings, more particularly to a kind of steering cylinder of endless-track vehicle.In addition, the present invention is also
It is related to a kind of endless-track vehicle including above-mentioned steering cylinder.
Background technology
Endless-track vehicle has many advantages, such as a variety of landform of adaptation, is widely used in a variety of environment.It include two side by side and
The external part of oil cylinder cavity disposed in parallel, two piston rods offsets with two steering arms respectively, and steering arm connects gearbox, turns
When to cylinder efficient, piston rod stretches out, and heads on steering arm and makees fan shape moving around itself center of circle；It is living when steering cylinder is stopped
Stopper rod is retracted, and steering arm makees fan-shaped drawback movement around itself center of circle, realizes and turns to work.
Existing steering cylinder, upper end and the plunger shaft upper end of piston rod are slidably matched.Return spring, bullet are housed in plunger shaft
Spring one end is against on the piston rod shaft shoulder, and one end is against on chamber end cap.End cover bolt is connected with cylinder body, there is end cap on end cap
Set, is slidably matched with piston rod.Cylinder body upper end is set there are two oil inlet, and side is equipped with shared oil return opening.As it can be seen that existing steering
Oil cylinder needs that multiple hydraulic fluid ports are arranged, and the part needed is more, complicated, and volume is big, of high cost.
Therefore, how to provide a kind of steering cylinder simple and compact for structure is that those skilled in the art need to solve at present
Technical problem.
Invention content
The object of the present invention is to provide a kind of steering cylinders of endless-track vehicle, and part is few, simple and compact for structure, at low cost,
Without oil return pipe, cost is reduced.It is a further object of the present invention to provide a kind of endless-track vehicles including above-mentioned steering cylinder.
In order to solve the above technical problems, the present invention provides a kind of steering cylinder of endless-track vehicle, including cylinder body, the cylinder body
It is interior to be equipped with two cavitys arranged side by side and parallel, it is mounted on piston and piston rod in each cavity, each cavity is equal
Including the working chamber, reseting cavity and stretching chamber being sequentially communicated, it is provided with limited step between the working chamber and the reseting cavity,
The piston can be moved in the working chamber and can be offseted with the limited step to avoid described in piston entrance
Reseting cavity is provided with installation step between the reseting cavity and the stretching chamber, the external part of the piston rod is by the stretching
Chamber stretches out the cavity, and resetting spring is set with outside the piston rod, the both ends of the resetting spring respectively with the piston
And the installation step offsets.
Preferably, two cavitys are specially two ladder holes that side-by-side parallel is set in the cylinder, described
It is equipped with the limited step and the installation step in ladder hole, the one end open of the ladder hole to the limited step
For the working chamber, the limited step to the installation step is the reseting cavity, and the installation step is logical to the ladder
Another end opening in hole is the stretching chamber, the diameter matches of the diameter of the working chamber and the piston, the stretching chamber
The diameter matches of diameter and the piston rod.
Preferably, the opening of two working chambers is separately installed with two oil pipe switchings for hydraulic oil disengaging
Head.
Preferably, the opening of the working chamber is equipped with the internal thread for being threadedly coupled the oil pipe adapter.
Preferably, it is provided with first annular slot on the stretching cavity wall, dustband is installed in the first annular slot.
Preferably, the piston outer periphery is provided with the second annular groove, and sealing ring is equipped in second annular groove.
Preferably, the cylinder body both sides are provided with flanged plate, and the flanged plate is equipped with mounting hole.
Preferably, further include adjustment bolt, the external part of the piston rod is provided with fastening screw nut, the adjustment bolt
One end is installed on the fastening screw nut, and the other end of the adjusting bolt rotates the fastening screw nut for offseting with steering arm
The extension elongation of the adjustment bolt can be adjusted.
The present invention provides a kind of endless-track vehicle, including steering cylinder, the steering cylinder are specially above-mentioned any one institute
The steering cylinder stated.
The present invention provides a kind of steering cylinder of endless-track vehicle, including cylinder body, and arranged side by side and parallel two are equipped in cylinder body
Cavity, piston and piston rod are mounted in each cavity, and each cavity includes the working chamber being sequentially communicated, reseting cavity and stretches
Go out chamber, limited step is provided between working chamber and reseting cavity, piston can move in working chamber and can be with limited step
It offsets and enters reseting cavity to avoid piston, be provided with installation step between reseting cavity and stretching chamber, the external part of piston rod is by stretching
Go out chamber and stretch out cavity, and resetting spring is set with outside piston rod, the both ends of resetting spring offset with piston and installation step respectively.
When work, hydraulic oil enters working chamber via hydraulic fluid port, and piston, piston rod is pushed to stretch out and then push connection gearbox
Steering arm, while limited step ensures that piston only moves in working chamber, and resetting spring is compressed, and when reset, is resetting bullet
Under the action of spring, piston rod is retracted, and the hydraulic oil in working chamber is released by piston, is flowed out working chamber via the same hydraulic fluid port, is matched
The control of hydraulic oil flow direction can be realized in a standby change-over valve.By the limit and installation of the component that two steps are realized, and
The disengaging that hydraulic oil can be realized in two hydraulic fluid ports is only set, and the part needed is few, simple and compact for structure, at low cost, is not necessarily to oil return
Pipe, reduces cost.
The present invention also provides a kind of endless-track vehicles including above-mentioned steering cylinder, since above-mentioned steering cylinder has above-mentioned skill
Art effect, above-mentioned endless-track vehicle should also have same technique effect, no longer be discussed in detail herein.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of specific implementation mode of steering cylinder provided by the present invention.
Specific implementation mode
Core of the invention is to provide a kind of steering cylinder of endless-track vehicle, and part is few, simple and compact for structure, at low cost,
Without oil return pipe, cost is reduced.Another core of the present invention is to provide a kind of endless-track vehicle including above-mentioned steering cylinder.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of specific implementation mode of steering cylinder provided by the present invention.
The specific embodiment of the invention provides a kind of steering cylinder of endless-track vehicle, including cylinder body 3, is equipped with simultaneously in cylinder body 3
Row and two parallel cavitys, piston and piston rod 5 are mounted in each cavity, and each cavity includes the work being sequentially communicated
Make chamber, reseting cavity and stretch out chamber, limited step is provided between working chamber and reseting cavity, piston can move simultaneously in working chamber
It can offset with limited step and enter reseting cavity to avoid piston, installation step, piston are provided between reseting cavity and stretching chamber
The external part of bar 5 stretches out cavity by stretching chamber, and is set with resetting spring 4 outside piston rod 5, the both ends of resetting spring 4 respectively with
Piston and installation step offset.
When work, hydraulic oil enters working chamber via hydraulic fluid port, and piston, piston rod 5 is pushed to stretch out and then push connection speed change
The steering arm of case, while limited step ensures that piston only moves in working chamber, resetting spring 4 is compressed, until piston motion
To the extreme position of one end, i.e. piston offsets with limited step, and resetting spring 4 is completely in reseting cavity at this time.
When reset, oil supply system pressure release, the elongation of resetting spring 4 starts to restPose, in the effect of resetting spring 4
Under, piston rod 5 is retracted, and the hydraulic oil in working chamber is released by piston, flows out working chamber via the same hydraulic fluid port, until piston is transported
It moves to the extreme position of the other end, 4 part of resetting spring is in reseting cavity at this time, and another part is in working chamber, phase
Compared with traditional oil cylinder, resetting spring 4 is in two cavitys, is effectively reduced cavity length, that is, is reduced the length of cylinder body 3
Degree.
Be equipped with a change-over valve can be realized hydraulic oil flow direction control, i.e., reversal valve simultaneously connect cylinder body 3 hydraulic fluid port,
The oil inlet and oil return opening of oil supply system when different conditions, switch the working position of reversal valve, and the hydraulic fluid port of cylinder body 3 is made to connect fuel feeding
The oil inlet or oil return opening of system.By the limit and installation of the component that two steps are realized, and two hydraulic fluid ports are only set
The disengaging that hydraulic oil can be realized, the part needed is few, simple and compact for structure, at low cost, is not necessarily to oil return pipe, reduces cost.
Specifically, two cavitys can be that side-by-side parallel be set to two ladder holes in cylinder body 3, the two of ladder hole
End has opening, can provide corresponding construction by bore process, processing technology is simple, and precision is higher.
Limited step and installation step are equipped in ladder hole, one end open to the limited step of ladder hole is work
Chamber, limited step to installation step are reseting cavity, and another end opening of installation step to ladder hole is to stretch out chamber, working chamber
The diameter matches of diameter and piston stretch out the diameter matches of the diameter and piston rod 5 of chamber.Working chamber, reseting cavity and stretch out chamber
Diameter is sequentially reduced, and wherein the diameter of reseting cavity needs to ensure not will produce interference after installing resetting spring 4.
The opening of working chamber is the hydraulic fluid port of hydraulic oil disengaging, and further, the opening of two working chambers is separately installed with
Two oil pipe adapters 1 for hydraulic oil disengaging.The endoporus of oil pipe adapter 1 is lived for being connected to reversal valve and working chamber
The extreme position that plug moves to this one end offsets with oil pipe adapter 1.As it can be seen that by the above-mentioned means, each chamber in cavity is
Integral type is arranged, and is only the cavity for foring achievable turning function, structure letter by 1 liang of component of cylinder body 3 and oil pipe adapter
It is single, the diameter of each chamber and the set-up mode of step also can be according to circumstances adjusted, within protection scope of the present invention.
In the steering cylinder that the specific embodiment of the invention provides, the internal thread that the opening of working chamber is equipped with, with oil
The external screw thread of pipe adapter 1 coordinates, and the two is threadedly coupled, and is conveniently replaceable repair, the modes such as welding or clamping can also be used.
In order to improve dust-proof effect, stretches out on cavity wall and be provided with first annular slot, be equipped in first annular slot dust-proof
Circle 6.In order to improve sealing effect, piston outer periphery is provided with the second annular groove, sealing ring 2 is equipped in the second annular groove.In order to
Convenient for the installation of cylinder body 3,3 both sides of cylinder body are provided with flanged plate, and flanged plate is equipped with mounting hole.
Further include adjustment bolt 8 on the basis of the steering that above-mentioned each specific implementation mode provides, piston rod 5
External part is provided with fastening screw nut 7, and one end of adjustment bolt 8 is installed on fastening screw nut 7, the other end of adjustment bolt 8 be used for
Steering arm offsets, and rotation fastening screw nut 7 can adjust the extension elongation of adjustment bolt 8.By rotating fastening screw nut 7, spiral shell is adjusted
Bolt 8 can stretch out or retract piston rod 5, and then adjust the clearance distance between adjustment bolt 8 and steering arm, meet different operating modes
Needs.
In addition to above-mentioned steering cylinder, specific implementation mode of the invention also provides a kind of crawler belt including above-mentioned steering cylinder
Vehicle, refer to the prior art for the structure of other each sections of the endless-track vehicle, and repeats no more herein.
Endless-track vehicle provided by the present invention and its steering cylinder are described in detail above.Tool used herein
Principle and implementation of the present invention are described for body example, and the explanation of above example is only intended to help to understand this hair
Bright method and its core concept.It should be pointed out that for those skilled in the art, not departing from the present invention
, can be with several improvements and modifications are made to the present invention under the premise of principle, these improvement and modification also fall into right of the present invention
It is required that protection domain in.
Claims (9)
1. a kind of steering cylinder of endless-track vehicle, including cylinder body (3), the cylinder body (3) is interior to be equipped with two chambers arranged side by side and parallel
Body is each mounted on piston and piston rod (5) in the cavity, which is characterized in that each cavity includes connecting successively
Logical working chamber, reseting cavity and stretching chamber, is provided with limited step, the piston energy between the working chamber and the reseting cavity
Enough movements in the working chamber can simultaneously offset to avoid the piston into the reseting cavity with the limited step, described
Installation step is provided between reseting cavity and the stretching chamber, the external part of the piston rod (5) stretches out institute by the stretching chamber
State cavity, and be set with resetting spring (4) outside the piston rod (5), the both ends of the resetting spring (4) respectively with the piston
And the installation step offsets.
2. steering cylinder according to claim 1, which is characterized in that two cavitys are specially that side-by-side parallel is set to
Two ladder holes in the cylinder body (3), the ladder hole is interior equipped with the limited step and the installation step, described
The one end open of ladder hole to the limited step is the working chamber, and the limited step to the installation step is described
Reseting cavity, another end opening of the installation step to the ladder hole are the stretching chamber, the diameter of the working chamber with
The diameter matches of the piston, the diameter matches of the diameter and the piston rod (5) for stretching out chamber.
3. steering cylinder according to claim 2, which is characterized in that the opening of two working chambers is separately installed with
Two oil pipe adapters (1) for hydraulic oil disengaging.
4. steering cylinder according to claim 3, which is characterized in that the opening of the working chamber is equipped with to be connected for screw thread
Connect the internal thread of the oil pipe adapter (1).
5. steering cylinder according to claim 4, which is characterized in that be provided on the stretching cavity wall first annular
Slot is equipped with dustband (6) in the first annular slot.
6. steering cylinder according to claim 5, which is characterized in that the piston outer periphery is provided with the second annular groove, institute
It states and sealing ring (2) is installed in the second annular groove.
7. steering cylinder according to claim 1, which is characterized in that cylinder body (3) both sides are provided with flanged plate, described
Flanged plate is equipped with mounting hole.
8. according to the steering cylinder described in claim 1 to 7 any one, which is characterized in that further include adjustment bolt (8), institute
The external part for stating piston rod (5) is provided with fastening screw nut (7), and one end of the adjustment bolt (8) is installed on the fastening screw nut
(7), for the other end of the adjusting bolt (8) for offseting with steering arm, the tune can be adjusted by rotating the fastening screw nut (7)
The extension elongation of whole bolt (8).
9. a kind of endless-track vehicle, including steering cylinder, which is characterized in that the steering cylinder is specially that claim 1 to 8 is arbitrary
Steering cylinder described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810669961.XA CN108533568A (en) | 2018-06-26 | 2018-06-26 | Endless-track vehicle and its steering cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810669961.XA CN108533568A (en) | 2018-06-26 | 2018-06-26 | Endless-track vehicle and its steering cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108533568A true CN108533568A (en) | 2018-09-14 |
Family
ID=63487098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810669961.XA Pending CN108533568A (en) | 2018-06-26 | 2018-06-26 | Endless-track vehicle and its steering cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108533568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111215852A (en) * | 2020-01-22 | 2020-06-02 | 武汉船用机械有限责任公司 | Machining method for cylinder body of double-piston oil cylinder |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3885391A (en) * | 1972-07-07 | 1975-05-27 | Girling Ltd | Hydraulic braking system |
| CN2366601Y (en) * | 1999-05-02 | 2000-03-01 | 马铁军 | Automatial control direction changeable oil cylinder |
| CN201056229Y (en) * | 2007-06-08 | 2008-05-07 | 闫学富 | Track-mounted reaper steering cylinder |
| CN201574998U (en) * | 2009-12-25 | 2010-09-08 | 三一重工股份有限公司 | Automatic reset grip cylinder and backhole loader |
| CN203978995U (en) * | 2014-07-15 | 2014-12-03 | 宁波亚吉机电科技有限公司 | High pressure lever cylinder |
| CN105508343A (en) * | 2015-12-22 | 2016-04-20 | 芜湖恒坤汽车部件有限公司 | Damping steering oil cylinder |
| CN205186271U (en) * | 2015-12-07 | 2016-04-27 | 温岭市***机械制造有限公司 | Steering cylinder of harvester |
| CN205916184U (en) * | 2016-07-05 | 2017-02-01 | 安徽霍达机械有限公司 | Steering axle's steering cylinder |
-
2018
- 2018-06-26 CN CN201810669961.XA patent/CN108533568A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3885391A (en) * | 1972-07-07 | 1975-05-27 | Girling Ltd | Hydraulic braking system |
| CN2366601Y (en) * | 1999-05-02 | 2000-03-01 | 马铁军 | Automatial control direction changeable oil cylinder |
| CN201056229Y (en) * | 2007-06-08 | 2008-05-07 | 闫学富 | Track-mounted reaper steering cylinder |
| CN201574998U (en) * | 2009-12-25 | 2010-09-08 | 三一重工股份有限公司 | Automatic reset grip cylinder and backhole loader |
| CN203978995U (en) * | 2014-07-15 | 2014-12-03 | 宁波亚吉机电科技有限公司 | High pressure lever cylinder |
| CN205186271U (en) * | 2015-12-07 | 2016-04-27 | 温岭市***机械制造有限公司 | Steering cylinder of harvester |
| CN105508343A (en) * | 2015-12-22 | 2016-04-20 | 芜湖恒坤汽车部件有限公司 | Damping steering oil cylinder |
| CN205916184U (en) * | 2016-07-05 | 2017-02-01 | 安徽霍达机械有限公司 | Steering axle's steering cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111215852A (en) * | 2020-01-22 | 2020-06-02 | 武汉船用机械有限责任公司 | Machining method for cylinder body of double-piston oil cylinder |
| CN111215852B (en) * | 2020-01-22 | 2021-08-17 | 武汉船用机械有限责任公司 | Machining method for cylinder body of double-piston oil cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104006032B (en) | The locked oil hydraulic cylinder of a kind of two-way mechanical | |
| CN105579759B (en) | Ready-package coupling device for charging fluid | |
| CN104373412B (en) | A kind of double-click cylinder | |
| KR20070003882A (en) | Flow control valve and cylinder device with flow control valve | |
| US4632018A (en) | Fluid cylinder position sensor mounting apparatus | |
| US4009641A (en) | Compact power steering gear | |
| CN201671913U (en) | Actuator cylinder with built-in claw lock device | |
| US11674531B2 (en) | Fluid return apparatus for a double-acting cylinder and method for operating such a cylinder | |
| CN108533568A (en) | Endless-track vehicle and its steering cylinder | |
| US2922397A (en) | Adjustable stroke reciprocatory fluid pressure motor | |
| CN103758816A (en) | Integration series connection cylinder with adjustable stroke | |
| CN204110137U (en) | Meta hydraulic actuating cylinder and engineering truck | |
| CN106499696B (en) | Enclosed self-locking oil cylinder | |
| CN113323943A (en) | Stroke-adjustable double-stroke single-stage double-acting drill rod clamping oil cylinder | |
| US7228784B2 (en) | Rotary or pivoting device and connection module for a rotary or pivoting device | |
| CN208651321U (en) | A kind of plunger piston fluid pressure cylinder of intermediate position oil inlet | |
| CN203784010U (en) | Adjustable stroke integration series cylinder | |
| CN206054442U (en) | A kind of tight locking hydraulic cylinder of mechanical self-latching | |
| CN205918685U (en) | Compact multiposition jar of doubly doing all can | |
| CN112664508A (en) | Swing linear oil cylinder | |
| CN204175701U (en) | A kind of double-click cylinder | |
| CN105221515B (en) | A kind of integrated hydraulic cylinder with two-way travel limitation | |
| CN219622990U (en) | Cylinder with adjustable stroke | |
| CN109630500A (en) | A kind of isolation cylinder of adjustable volume | |
| CN107806458B (en) | Mechanical self-locking anti-loose 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: 20180914 |
|
| RJ01 | Rejection of invention patent application after publication |