CN107879290A - The enlarger that a kind of multidirectional forklift front wheel turns to - Google Patents
The enlarger that a kind of multidirectional forklift front wheel turns to Download PDFInfo
- Publication number
- CN107879290A CN107879290A CN201711384202.0A CN201711384202A CN107879290A CN 107879290 A CN107879290 A CN 107879290A CN 201711384202 A CN201711384202 A CN 201711384202A CN 107879290 A CN107879290 A CN 107879290A
- Authority
- CN
- China
- Prior art keywords
- oil
- steering
- cylinder
- turns
- front wheel
- 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
- 230000003321 amplification Effects 0.000 claims abstract description 17
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 15
- 239000002828 fuel tank Substances 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 80
- 239000000463 material Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07504—Accessories, e.g. for towing, charging, locking
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention discloses the enlarger that a kind of multidirectional forklift front wheel turns to, include the synchronous left and right side front steering oil cylinder for driving left front wheel assembly and off-front wheel component to turn to, left and right side front steering oil cylinder is serially connected, and it is double rod cylinder, the piston rod of its one end is hinged with a steering amplification board to its corresponding matching, the other end for turning to amplification board is connected with left front wheel assembly and off-front wheel member hinges respectively, and the fuel-displaced mode of entering of the left and right side front steering oil cylinder is controlled by oil piping system.The invention can ensure that fork truck is when lateral traveling turns to, the steering of two front-wheels is moment while same corner, avoid front-wheel that sliding phenomenon occurs when skidding turns to, foot wheel abrasion before reduction, while realize that front-wheel synchronously turns to by two identical oil cylinders, standard specification can be used in the cylinder diameter of this two oil cylinders and bar footpath, the difficulty of market purchasing, cost can all greatly reduce, while the interchangeability of cylinder seal part is good, can reduce maintenance cost.
Description
Technical field：
The present invention relates to fork truck field, relates generally to the enlarger that a kind of multidirectional forklift front wheel turns to.
Background technology：
Modern logistics industry development is rapid, and fork truck is responsible for important task as the main force of logistic industry, now fork truck row
Industry is not limited to traditional material and carried, and storage class fork truck is quickly grown, and the long material storage of warehouse narrow opening becomes clear day by day, narrow lane
Road stacking long material stacking fork truck demand is more and more extensive.Stacking for narrow passage long material, it is desirable to which fork truck needs to have more
The function of just walking（Such as straight trip, skidding）, under straight-going state, steering is realized by rear-axle steering, in skidding state
Under, steering is to rotate identical angle in the opposite direction by two front-wheels to realize that cornerite turns to.
Realize that the executive component of front-wheel steer is generally hydraulic motor or hydraulic jack at present, before being realized using hydraulic motor
Rotate in order to which front-wheel steer keeps that synchronously, balanced valve and electro-hydraulic proportional valve, hydraulic system and electric control system phase need to be used
To complexity.The mode connected using hydraulic jack realizes front-wheel steer, can not only realize front-wheel steer synchronization, and can be straight
Connect and control hydraulic jack with steering wheel, hydraulic system can greatly simplify.
The concrete arrangement of the oil cylinder series system used in said structure is radial type, i.e. the thicker oil of a cylinder diameter
Rod cavity is serially connected with a thinner rodless cavity of cylinder diameter, and oil inlet and oil return opening are respectively in the thicker rodless cavity end hydraulic fluid port of cylinder diameter
The rod chamber end hydraulic fluid port thinner with cylinder diameter.But realize that front-wheel synchronously turns using thick cylinder diameter oil cylinder and thin cylinder diameter oil cylinder series system
To the requirement to oil cylinder is higher, it is necessary to the fluid capacity of thick cylinder diameter cylinder rod chamber is identical with the fluid capacity of thin cylinder diameter oil cylinder,
The seal inside nonstandard making oil cylinder is so needed, market purchasing is difficult, and cylinder seal part interchangeability is poor, and cost greatly increases.
The content of the invention：
The defects of the object of the invention is exactly to make up prior art, there is provided the enlarger that a kind of multidirectional forklift front wheel turns to,
With simple and reliable mode, when realizing that front-wheel cornerite turns to, front-wheel can reduce the unnecessary mill of front-wheel with the same corner of timing synchronization
Damage.
The present invention is achieved by the following technical solutions：
The enlarger that a kind of multidirectional forklift front wheel turns to, it is characterised in that：Include before synchronously driving left front wheel assembly and the right side
The left and right side front steering oil cylinder that wheel assembly turns to, the left and right side front steering oil cylinder are serially connected, and are double piston-rod oil
Cylinder, the piston rod of its one end are hinged with a steering amplification board to its corresponding matching, the other end for turning to amplification board
It is connected respectively with left front wheel assembly and off-front wheel member hinges, the fuel-displaced mode of entering of the left and right side front steering oil cylinder passes through oil
Road system control.
Described left and right side front steering oil cylinder is two identical oil cylinders, and the cylinder diameter of this two oil cylinders and bar footpath
Use standard specification.
The installation site of described left and right side front steering oil cylinder is arranged on cylinder barrel side, and is respectively and fixedly installed to
On car body.
Described steering amplification board is the plate that both ends and middle part have certain camber.
Described oil piping system includes the gear pump being arranged in oil piping system, steering wheel, two six logical electromagnetic switch
Valve, solenoid directional control valve, hydraulic control one-way valve, the oil inlet of the steering wheel are connected to fuel tank, and inflow pipeline by inflow pipeline
In be provided with gear pump and cleaner, the oil return opening of the steering wheel is connected to fuel tank by oil returning tube, in the steering wheel
Two oil inlet and outlets are connected to two six electric change valves by pipeline respectively, two of two six electric change valves
Oil inlet and outlet is connected to left and right side front steering oil cylinder by pipeline, and solenoid directional control valve and hydraulic control one-way valve are provided with pipeline.
Two oil inlet and outlets of residue of two described six electric change valves are connected to rear-axle steering oil cylinder by pipeline
Oil inlet and outlet, the fluid oozed out when valve port switches in valve pocket of two six electric change valves can also pass through oil extraction
Pipeline is connected to fuel tank.
The oil inlet of described left side front steering oil cylinder is located in the cavity of one end, and oil-out is located at other end hinged end
In cavity, the oil-out is connected to the oil inlet of one end cavity of right side front steering oil cylinder by pipeline, and its oil-out is located at
In the cavity of other end hinged end, and oil-out fluid backs into fuel tank by solenoid directional control valve.
Its principle is：By the way that the steering cylinder of all extended cylinder barrel of two piston rods is connected, can so ensure in cylinder
In the case that cylinder diameter is unrestricted, the cavity volume that two cylinders are serially connected keeps identical, and fluid is pushed into wherein by gear pump
When in the cavity of left side front steering cylinder, when left side front steering oil cylinder pushing steering amplification board, it is because turning to amplification board both sides
Radial type, when steering cylinder, which promotes, turns to amplification board, turning to amplification board can promote front component to be rotated, left side forward
It is pushed into the fluid of oil cylinder other end cavity, in the cavity of right side front steering cylinder, because cavity volume is identical, it is possible to achieve left front
Wheel assembly is identical with the rotational angle of off-front wheel component, realizes synchronous.
Described steering amplification board, both ends are all radial types, can within the specific limits, and steering cylinder is by smaller side
To promoting front component in the case of power, while front-wheel cornerite steering angle is set to increase 10-20 ° than common steering mode.And
When oil cylinder pushing turns to amplification board, in certain scope, oil cylinder can be by before promoting in the case of less side force
Wheel assembly.
It is an advantage of the invention that：
The present invention is reasonable in design, it is ensured that for fork truck when lateral traveling turns to, the steering of two front-wheels is that the moment is simultaneously same
Corner, avoid front-wheel that sliding phenomenon, foot wheel abrasion before reduction occur when skidding turns to, while realized by two identical oil cylinders
Front-wheel synchronously turns to, and standard specification can be used in the cylinder diameter of this two oil cylinders and bar footpath, and the difficulty of market purchasing, cost all can be big
It is big to reduce, while the interchangeability of cylinder seal part is good, can reduce maintenance cost.
Brief description of the drawings：
Fig. 1 is the hydraulic schematic diagram of the present invention.
Fig. 2 is the structure three-dimensional reference chart of the present invention.
Embodiment：
Referring to accompanying drawing.
The enlarger that a kind of multidirectional forklift front wheel turns to, it is characterised in that：Include the synchronous left front wheel assembly 10 of driving
Left and right side front steering oil cylinder 8-1, the 8-2 turned to off-front wheel component 11, described left and right side front steering oil cylinder 8-1,8-2 are mutual
Series connection, and be double rod cylinder, the piston rod of its one end is hinged with a steering amplification board 9- to its corresponding matching
1st, 9-2, the other end for turning to amplification board 9-1,9-2 are articulated and connected with left front wheel assembly 10 and off-front wheel component 11 respectively,
Described left and right side front steering oil cylinder 8-1,8-2 fuel-displaced mode of entering are controlled by oil piping system.
Described left and right side front steering oil cylinder 8-1,8-2 is two identical oil cylinders, and the cylinder diameter and bar of this two oil cylinders
Standard specification can be used in footpath.
Described left and right side front steering oil cylinder 8-1,8-2 installation site is arranged on cylinder barrel side, and is fixed respectively
On car body.
Described steering amplification board 9-1,9-2 is the plate that both ends and middle part have certain camber, and this plate is in machine
The effect of two power bars is acting as in structure principle, middle camber is the revolving support before avoidance on wheel assembly in front-wheel steer
And the support of fixed wheel.
Described oil piping system includes the gear pump 3 being arranged in oil piping system, 4, two six energization magnetic of steering wheel change
To valve 5, solenoid directional control valve 6, hydraulic control one-way valve 7, the oil inlet of the steering wheel 4 is connected to fuel tank 1 by inflow pipeline, and enters
Gear pump 3 and cleaner 2 are provided with oil-piping, the oil return opening of the steering wheel 4 is connected to fuel tank 1 by oil returning tube, described
Two oil inlet and outlets in steering wheel 4 are connected to two six electric change valves 5, two six energization magnetic by pipeline respectively
Two oil inlet and outlets of reversal valve 5 are connected to left and right side front steering oil cylinder 8-1,8-2 by pipeline, and electromagnetism is provided with pipeline
Reversal valve 6 and hydraulic control one-way valve 7.
Two oil inlet and outlets of residue of two described six electric change valves 5 are connected to rear-axle steering oil cylinder by pipeline
Oil inlet and outlet, the fluid oozed out when valve port switches in valve pocket of two six electric change valves can also pass through oil extraction
Pipeline 12 is connected to fuel tank 1.
Described left side front steering oil cylinder 8-1 oil inlet is located in the cavity of one end, and oil-out is hinged positioned at the other end
In the cavity at end, the oil-out is connected to the oil inlet of right side front steering oil cylinder 8-2 one end cavity by pipeline, and its is fuel-displaced
Mouth is in the cavity of other end hinged end, and oil-out fluid backs into fuel tank 1 by solenoid directional control valve 6.
Using this fork truck enlarger, left and right side front steering oil cylinder installation site is arranged on cylinder barrel side, forward
To all extended cylinder barrel in piston rod both ends of oil cylinder, so no matter front steering cylinder tube diameter is how many, can all be ensured left front
Steering cylinder can not have to left and right the steering cylinder as before as the cavity volume that right front steering oil cylinder is serially connected
The diameter of steering cylinder cylinder barrel need to be mutually matched.The front steering oil cylinder of this enlarger is fixed on car body simultaneously, current rotation
Xiang Shi, front steering oil cylinder will not be moved with car body, and now hydraulic hose will not also be moved, and effectively prevent hydraulic hose
Oil leak, while this arrangement is taken, space can be greatlyd save, slot milling, facilitates other parts to arrange that raising can vehicle
Space availability ratio.
This mechanism is to drive gear pump that hydraulic oil pump is connected to steering wheel, the T mouths of steering wheel with fuel tank by pump motor,
When fork truck is in idling mode, fluid is direct oil return box, and for front-wheel in sideways mode, steering wheel is by two six energizations
Fluid is pumped into the cavity of left side front steering oil cylinder by magnetic reversal valve and solenoid directional control valve, the oil of the left side front steering oil cylinder other end
Liquid, it is squeezed into the cavity of right side front steering oil cylinder, the fluid oil return box in the front steering oil cylinder opposite side cavity of right side so that two
Side front steering oil cylinder acts simultaneously, because can be stretched during the piston rod of front steering oil cylinder in cylinder barrel both sides, so ensure that
The cavity inner fluid volume that two front steering oil cylinders are serially connected is identical, and left and right front component can is simultaneously and the moment keeps phase
Turned to angle.Fork truck is avoided in lateral traveling, the phenomenon of foot wheel abrasion before appearance.
Claims (7)
- A kind of 1. enlarger that multidirectional forklift front wheel turns to, it is characterised in that：Include and synchronously drive left front wheel assembly and the right side The left and right side front steering oil cylinder that front component turns to, the left and right side front steering oil cylinder are serially connected, and are double piston-rod Oil cylinder, the piston rod of its one end is hinged with a steering amplification board to its corresponding matching, described to turn to the another of amplification board End is connected with left front wheel assembly and off-front wheel member hinges respectively, and the fuel-displaced mode of entering of the left and right side front steering oil cylinder passes through Oil piping system controls.
- 2. the enlarger that multidirectional forklift front wheel according to claim 1 turns to, it is characterised in that：Described left and right side Front steering oil cylinder is two identical oil cylinders, and standard specification can be used in the cylinder diameter of this two oil cylinders and bar footpath.
- 3. the enlarger that multidirectional forklift front wheel according to claim 2 turns to, it is characterised in that：Described left and right side The installation site of front steering oil cylinder is arranged on cylinder barrel side, and is respectively and fixedly installed on car body.
- 4. the enlarger that multidirectional forklift front wheel according to claim 1 turns to, it is characterised in that：Described steering amplification Plate is the plate that both ends and middle part have certain camber.
- 5. the enlarger that multidirectional forklift front wheel according to claim 1 turns to, it is characterised in that：Described oil piping system Include the gear pump being arranged in oil piping system, steering wheel, two six electric change valves, solenoid directional control valve, fluid-control one-ways Valve, the oil inlet of the steering wheel is connected to fuel tank by inflow pipeline, and gear pump and cleaner, institute are provided with inflow pipeline State the oil return opening of steering wheel and fuel tank is connected to by oil returning tube, two oil inlet and outlets in the steering wheel pass through pipeline respectively Two six electric change valves are connected to, two oil inlet and outlets of two six electric change valves are connected to by pipeline Left and right side front steering oil cylinder, and solenoid directional control valve and hydraulic control one-way valve are provided with pipeline.
- 6. the enlarger that multidirectional forklift front wheel according to claim 5 turns to, it is characterised in that：Described two six are logical Two oil inlet and outlets of residue of solenoid directional control valve are connected to the oil inlet and outlet of rear-axle steering oil cylinder by pipeline, and described two six logical The valve pocket of solenoid directional control valve is also connected to fuel tank by oil-drain pipe.
- 7. the enlarger that multidirectional forklift front wheel according to claim 5 turns to, it is characterised in that：Described left side forward It is located to the oil inlet of oil cylinder in the cavity of one end, oil-out is located in the cavity of other end hinged end, and the oil-out passes through Pipeline is connected to the oil inlet of one end cavity of right side front steering oil cylinder, and its oil-out is located in the cavity of other end hinged end, And oil-out fluid backs into fuel tank by solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384202.0A CN107879290A (en) | 2017-12-20 | 2017-12-20 | The enlarger that a kind of multidirectional forklift front wheel turns to |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384202.0A CN107879290A (en) | 2017-12-20 | 2017-12-20 | The enlarger that a kind of multidirectional forklift front wheel turns to |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107879290A true CN107879290A (en) | 2018-04-06 |
Family
ID=61772089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711384202.0A Pending CN107879290A (en) | 2017-12-20 | 2017-12-20 | The enlarger that a kind of multidirectional forklift front wheel turns to |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107879290A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938831A (en) * | 2021-04-12 | 2021-06-11 | 合肥搬易通科技发展有限公司 | Front wheel synchronous rotation hydraulic system and forklift thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201850487U (en) * | 2010-11-05 | 2011-06-01 | 徐工集团工程机械股份有限公司科技分公司 | Hydraulic steering system of double-steel-wheel road roller |
| CN102351004A (en) * | 2011-07-26 | 2012-02-15 | 浙江吉利汽车研究院有限公司 | Automobile power-assisted steering system |
| CN102975765A (en) * | 2011-11-21 | 2013-03-20 | 芜湖瑞创叉车有限公司 | Forklift hydraulic control steering balancing device |
| CN103452936A (en) * | 2013-09-10 | 2013-12-18 | 徐工集团工程机械股份有限公司道路机械分公司 | Lockable hydraulic crab steering system for double-drum rollers |
| CN104149846A (en) * | 2014-06-17 | 2014-11-19 | 宁波如意股份有限公司 | Hydraulic control system based on four-station double-acting cylinders for transverse travelling steering mechanism |
| CN107585712A (en) * | 2017-08-28 | 2018-01-16 | 合肥搬易通科技发展有限公司 | A kind of multidirectional fork truck skidding cornerite turns to synchronization system |
| CN207645736U (en) * | 2017-12-20 | 2018-07-24 | 合肥搬易通科技发展有限公司 | A kind of enlarger that multidirectional forklift front wheel turns to |
-
2017
- 2017-12-20 CN CN201711384202.0A patent/CN107879290A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201850487U (en) * | 2010-11-05 | 2011-06-01 | 徐工集团工程机械股份有限公司科技分公司 | Hydraulic steering system of double-steel-wheel road roller |
| CN102351004A (en) * | 2011-07-26 | 2012-02-15 | 浙江吉利汽车研究院有限公司 | Automobile power-assisted steering system |
| CN102975765A (en) * | 2011-11-21 | 2013-03-20 | 芜湖瑞创叉车有限公司 | Forklift hydraulic control steering balancing device |
| CN103452936A (en) * | 2013-09-10 | 2013-12-18 | 徐工集团工程机械股份有限公司道路机械分公司 | Lockable hydraulic crab steering system for double-drum rollers |
| CN104149846A (en) * | 2014-06-17 | 2014-11-19 | 宁波如意股份有限公司 | Hydraulic control system based on four-station double-acting cylinders for transverse travelling steering mechanism |
| CN107585712A (en) * | 2017-08-28 | 2018-01-16 | 合肥搬易通科技发展有限公司 | A kind of multidirectional fork truck skidding cornerite turns to synchronization system |
| CN207645736U (en) * | 2017-12-20 | 2018-07-24 | 合肥搬易通科技发展有限公司 | A kind of enlarger that multidirectional forklift front wheel turns to |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938831A (en) * | 2021-04-12 | 2021-06-11 | 合肥搬易通科技发展有限公司 | Front wheel synchronous rotation hydraulic system and forklift thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102951198B (en) | A kind of vehicle and fluid-link steering drive system | |
| CN102530064B (en) | Engineering mechanical vehicle, vehicle steering following control system and vehicle steering following control method | |
| CN204341185U (en) | Four-mode steering hydraulic control system and there is its vehicle | |
| CN108556910B (en) | All-wheel steering system | |
| CN107448425A (en) | Control valve and land leveller front wheel driven hydraulic system | |
| US11691669B2 (en) | Steering system of engineering vehicle and backhoe loader | |
| CN201971601U (en) | Three-wheel drive four-way static pressure forklift truck hydraulic system | |
| CN109911009B (en) | Full-hydraulic steering system and method for underground metal mine concrete mixer truck | |
| CN105438256A (en) | Steering controlling method and device and crane | |
| CN201472461U (en) | Axle steering and locking converting control system | |
| CN107585712B (en) | A kind of multidirectional fork truck skidding cornerite steering synchronization system | |
| CN107813870A (en) | A kind of aerial work platform four-wheel steering hydraulic system | |
| CN202368642U (en) | Engineering machinery vehicle and vehicle steering follow-up control system | |
| CN107879290A (en) | The enlarger that a kind of multidirectional forklift front wheel turns to | |
| CN104071218B (en) | A kind of longitudinal direction of car steering mechanism of travelling | |
| CN207645736U (en) | A kind of enlarger that multidirectional forklift front wheel turns to | |
| CN108146497B (en) | Full-hydraulic steering synchronous control system for forklift | |
| CN107725542B (en) | Land leveller front wheel driven hydraulic control system | |
| CN109109659A (en) | Wheeled agricultural machinery and its hydraulic travel system | |
| CN205401281U (en) | Closed -type hydraulic system and including this closed -type hydraulic system's machine | |
| CN109955895A (en) | A kind of special-purpose vehicle multi-mode steering control hydraulic system | |
| CN217730549U (en) | Four-wheel steering hydraulic system and four-wheel vehicle | |
| CN102874309A (en) | Crane as well as steering system and rocker arm thereof | |
| CN106240634B (en) | Radial type bidirectional steering vehicle all hydraulic pressure steering-gear | |
| CN104058006B (en) | A kind of lateral direction of car travels steering hardware |
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 |