CN201169293Y - Hydraulic steering lifting system - Google Patents
Hydraulic steering lifting system Download PDFInfo
- Publication number
- CN201169293Y CN201169293Y CNU2008200175082U CN200820017508U CN201169293Y CN 201169293 Y CN201169293 Y CN 201169293Y CN U2008200175082 U CNU2008200175082 U CN U2008200175082U CN 200820017508 U CN200820017508 U CN 200820017508U CN 201169293 Y CN201169293 Y CN 201169293Y
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- hydraulic
- steering
- cylinder
- lifting
- pump
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Abstract
The utility model relates to a hydraulic steering lifting system which comprises a hydraulic steering system and a lifting system of a fifth wheel, wherein, the hydraulic steering system comprises a power-assisted steering pump, a full-hydraulic steering gear and a hydraulic steering cylinder; the lifting system of a fifth wheel comprises a hydraulic lifting cylinder, a control valve set and a lifting pump. The full-hydraulic steering gear is a normal device comprising a priority valve; the oil inlet of the full-hydraulic steering gear is connected with the power-assisted steering pump, and the load oil port is connected with the hydraulic steering cylinder. The control valve set comprises a four-way valve; the P port of the control valve set is connected with lifting pump through a one-way valve, and the load oil port A is connected with hydraulic lifting cylinder through a pilot operated check valve and a return orifice check valve; the hydraulic lifting cylinder is a heavy-load extending type hydraulic cylinder. The hydraulic steering lifting system realizes that the hydraulic steering system and the lifting system are combined into one system; the structure is compact, and the use is convenient.
Description
(1) technical field
The utility model relates to a kind of fluid-link steering hoisting system, is that the low speed tractor truck turns to the 5th and takes turns combining and improvement of hoisting system.Can be used as stuck-module and be applied to special vehicle, or other functions of expansion special vehicle.
(2) background technology
What the low speed tractor truck abroad generally adopted at present is the hydraulic booster mechanical steering, and common mechanical hydraulic power steering system is generally by component set-ups such as Hydraulic Pump, oil pipe, pressure flow control valve body, V-type drive belt, petrol storage tanks.No matter whether car turns to, and for keep-uping pressure, this cover system all will be worked, and useless energy consumption is higher.And when turning to the speed of a motor vehicle low greatly, needing the bigger power of Hydraulic Pump output to obtain bigger power-assisted, this has also wasted resource to a certain extent.And make systems bulky because need bigger power-assisted, underaction.Again because the pressure of Hydraulic Pump is very big, also than being easier to damage force aid system.
At present China the 5th takes turns hoisting system and depends on the import original paper, and it adopts the single-acting piston type hydraulic actuating cylinder, and this hydraulic cylinder works stroke is little, thereby has limited the range of use of total system.
Occurred at present fluid-link steering hoisting system abroad, but because its scheme is to adopt the simple combination of said system basically, its effect only limits to the simple superposition of two systemic-functions with the combination of above-mentioned two systems.
(3) summary of the invention
The utility model uses dumb, system complex in order to overcome above technology, and the shortcoming of function singleness, provides a kind of novel.
The utility model fluid-link steering hoisting system is by the following technical solutions:
Comprise that hydrostatic steering system and the 5th takes turns hoisting system, wherein hydrostatic steering system comprises power assistance pump for steering, all-hydraulic steering gear and hydraulic steering cylinder.The 5th takes turns hoisting system comprises lifting hydraulic cylinder, control cock group and lifting pump.Described all-hydraulic steering gear is the normal component that comprises pressure-gradient control valve, and its oil inlet connects described power assistance pump for steering, and the load hydraulic fluid port connects described hydraulic steering cylinder.Described control cock group comprises four-way cock, and its P mouth connects described lifting pump by check valve, and its load hydraulic fluid port A connects described lifting hydraulic cylinder by hydraulic control one-way valve and one-way throttle valve, and this lifting hydraulic cylinder is heavily loaded telescoping hydraulic cylinder.
Above-mentioned fluid-link steering hoisting system, described hydraulic control one-way valve control port links to each other with described lifting pump by by pass valve.Described lifting pump is a gear type pump.
It is biliquid hydraulic circuit in parallel that above-mentioned fluid-link steering hoisting system, described hydrostatic steering system and the 5th are taken turns hoisting system.
The utility model fluid-link steering hoisting system adopts hydrostatic steering system and the 5th to take turns the integrated scheme of hoisting system, and both also are linked to be biliquid hydraulic circuit, compact conformation.Wherein hydrostatic steering system adopts the all-hydraulic steering gear comprise pressure-gradient control valve, and full hydraulic system is with respect to the machinery hydraulic system working stability, compact conformation, and all-hydraulic steering gear is a normal component, compact conformation can be realized interchangeability simultaneously.Described pressure-gradient control valve two ends connect the LS mouth, and the LS mouth is the load cell mouth, and according to load variations, two ends produce pressure reduction, promote its spool, thereby realize that preferential giving turns to fuel feeding.Hoisting system adopts integrated Sandwich plate valve group, and wherein four-way cock is realized the control to main fuel feeding road, and load hydraulic fluid port A is by hydraulic control one-way valve and Throttle Valve Control hydraulic actuating cylinder, and hydraulic actuating cylinder adopts the bigger telescoping hydraulic cylinder of forced stroke, increases its field of application.Utilize the auto-lock function of hydraulic control one-way valve can realize that the optional position stops in the lifting process, can pass through its lifting speed of Throttle Valve Control, it is safer, reliable to work.The control port of hydraulic control one-way valve links to each other with the lifting pump by by pass valve, has pressure to control to control, so that the reverse unlatching of hydraulic control one-way valve.The lifting pump adopts gear type pump in addition, and is insensitive to oil contamination, can provide pressure higher control oil, is suitable for heavily loaded hoisting system.
(4) description of drawings
Fig. 1 is the utility model fluid-link steering hoisting system principle schematic.
Fig. 2 is the all-hydraulic steering gear schematic diagram of the utility model fluid-link steering hoisting system.
Fig. 3 is the control cock group schematic diagram of the utility model fluid-link steering hoisting system.
Among the figure, 1, power assistance pump for steering, 2, pressure-gradient control valve, 3, all-hydraulic steering gear, 4, hydraulic steering cylinder, 5, lifting hydraulic cylinder, 6, hydraulic control one-way valve, 7, four-way cock, 8, the control cock group, 9, the lifting pump.
(5) specific embodiment
Embodiment 1:
With reference to Figure of description 1 to 3, the utility model fluid-link steering hoisting system is that hydrostatic steering system and the 5th is taken turns hoisting system and is formed in parallel by double-circuit hydraulic, and wherein hydrostatic steering system comprises power assistance pump for steering 1, all-hydraulic steering gear 3 and hydraulic steering cylinder 4.Described all-hydraulic steering gear 3 is for including the normal component of pressure-gradient control valve 2, so that the system architecture compactness adopts all-hydraulic control simultaneously, system works is impacted little, reliable operation.Its oil inlet connects described power assistance pump for steering 1, and the load hydraulic fluid port connects described hydraulic steering cylinder 4.Described pressure-gradient control valve two ends connect the LS mouth, and oil suction switches through to boost pump, i.e. hydraulic oil source, and the LS mouth is the load cell mouth, according to load variations, two ends produce pressure reduction, promote its spool, thereby realize control delivery pressure and flow.The return opening of described pressure-gradient control valve 2 can external other system, so that expand vehicle functions.
The above-mentioned the 5th takes turns hoisting system comprises lifting hydraulic cylinder 5, control cock group 8 and lifting pump 9, described control cock group 8 comprises four-way cock 7, its P mouth connects described lifting pump 9 by check valve, its load hydraulic fluid port A connects described lifting hydraulic cylinder 5 by hydraulic control one-way valve 6 and one-way throttle valve, and this hydraulic actuating cylinder is heavily loaded telescoping hydraulic cylinder.Described hydraulic control one-way valve 6 control ports link to each other with described lifting pump 9 by by pass valve.Described control cock group 8 adopts the control cock group that is integrated in, compact conformation, and utilize the auto-lock function of hydraulic control one-way valve, realize can stopping at an arbitrary position in the hoisting system lifting process, and can regulate lifting speed according to actual needs.Described lifting pump 9 is a gear type pump, and gear type pump can provide pressure higher hydraulic power source, is well suited for heavily loaded hoisting system.
Claims (4)
1. fluid-link steering hoisting system comprises that hydrostatic steering system and the 5th takes turns hoisting system, and wherein hydrostatic steering system comprises power assistance pump for steering (1), all-hydraulic steering gear (3) and hydraulic steering cylinder (4); The 5th takes turns hoisting system comprises lifting hydraulic cylinder (5), control cock group (8) and lifting pump (9), it is characterized in that: described all-hydraulic steering gear (3) is the normal component that comprises pressure-gradient control valve (2), its oil inlet connects described power assistance pump for steering (1), and the load hydraulic fluid port connects described hydraulic steering cylinder (4); Described control cock group (8) comprises four-way cock (7), and its P mouth connects described lifting pump (9) by check valve, and its load hydraulic fluid port A connects described lifting hydraulic cylinder (5) by hydraulic control one-way valve (6) and one-way throttle valve, and this hydraulic actuating cylinder is heavily loaded telescoping hydraulic cylinder.
2. fluid-link steering hoisting system according to claim 1 is characterized in that: described hydraulic control one-way valve (6) control port links to each other with described lifting pump (9) by by pass valve.
3. fluid-link steering hoisting system according to claim 2 is characterized in that: described lifting pump (9) is a gear type pump.
4. according to claim 1,2 or 3 described fluid-link steering hoisting systems, it is characterized in that: it is biliquid hydraulic circuit in parallel that described hydrostatic steering system and the 5th is taken turns hoisting system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200175082U CN201169293Y (en) | 2008-01-31 | 2008-01-31 | Hydraulic steering lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200175082U CN201169293Y (en) | 2008-01-31 | 2008-01-31 | Hydraulic steering lifting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201169293Y true CN201169293Y (en) | 2008-12-24 |
Family
ID=40208345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200175082U Expired - Lifetime CN201169293Y (en) | 2008-01-31 | 2008-01-31 | Hydraulic steering lifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201169293Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505630A (en) * | 2011-11-17 | 2012-06-20 | 廊坊凯博建设机械科技有限公司 | Double-oil cylinder synchronous system for bridge detection operation vehicle |
| CN105114165A (en) * | 2015-07-27 | 2015-12-02 | 广西柳工机械股份有限公司 | Heat dissipating system of mining dump vehicle |
| CN106005000A (en) * | 2016-06-07 | 2016-10-12 | 福建海山机械股份有限公司 | Hydraulic steering control system |
-
2008
- 2008-01-31 CN CNU2008200175082U patent/CN201169293Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505630A (en) * | 2011-11-17 | 2012-06-20 | 廊坊凯博建设机械科技有限公司 | Double-oil cylinder synchronous system for bridge detection operation vehicle |
| CN105114165A (en) * | 2015-07-27 | 2015-12-02 | 广西柳工机械股份有限公司 | Heat dissipating system of mining dump vehicle |
| CN105114165B (en) * | 2015-07-27 | 2017-10-03 | 广西柳工机械股份有限公司 | Quarry tipper cooling system |
| CN106005000A (en) * | 2016-06-07 | 2016-10-12 | 福建海山机械股份有限公司 | Hydraulic steering control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA NATIONAL HEAVY DUTY TRUCK GROUP JINAN POWER Free format text: FORMER OWNER: JINAN TECH CENTER CO., LTD., CHINA HEAVY TRUCK GROUP Effective date: 20101026 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20101026 Address after: 250002 Ji'nan, central city, Shandong hero hill road, No. 165 Patentee after: China National Heavy Duty Truck Group Jinan Power Co., Ltd. Address before: 250002 Ji'nan, central city, Shandong hero hill road, No. 165 Patentee before: Jinan Tech Center Co., Ltd., China Heavy Truck Group |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081224 |