CN105416050B - A kind of chassis fluid power system - Google Patents
A kind of chassis fluid power system Download PDFInfo
- Publication number
- CN105416050B CN105416050B CN201510843886.0A CN201510843886A CN105416050B CN 105416050 B CN105416050 B CN 105416050B CN 201510843886 A CN201510843886 A CN 201510843886A CN 105416050 B CN105416050 B CN 105416050B
- Authority
- CN
- China
- Prior art keywords
- pump
- hydraulic
- variable pump
- drive axle
- controller
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/10—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of fluid gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of chassis fluid power systems, including engine and hydraulic oil container, the engine is connected with variable pump by shaft coupling, slippage pump and gear pump are in series on variable pump, variable pump is connected with controller, controller is equipped with gas pedal and brake pedal, and variable pump is connected with drive axle, and hydraulic motor is embedded in drive axle.The system becomes one drive axle and hydraulic motor, and space availability ratio is high and is convenient for the maintenance of hydraulic motor；And hydraulic-driven chassis is used, and it is securely and reliably, efficient and convenient, working efficiency is improved to greatest extent.
Description
Technical field
The present invention relates to hydraulic-driven technical fields, and in particular to a kind of chassis fluid power system.
Background technology
Currently, for the replacement of fighter plane external stores, there are a kind of dedicated replacement special vehicle, main function to be
The lifting and replacement to external stores are completed after positioning, this requires the special vehicles to be provided simultaneously with autonomous, lifting, braking
With positioning etc. functions, nowadays used in special vehicle cannot be satisfied requirement, speed control when being mainly reflected in autonomous
The problem of suffering, this is because need the special vehicle can meet high speed be not more than 20Km/h, low speed be not more than 3Km/h, and with
Stabilizing speed traveling no more than 3Km/h (containing moving forward and backward), will additionally meet lifting and require, so, existing special type
Vehicle cannot be satisfied requirement.
Invention content
The present invention is intended to provide a kind of chassis fluid power system, to solve the positioning of conventional airplane external stores and replace to use
The problem of special purpose vehicle amount cannot be satisfied requirement, the system can drive vehicle to be not more than 20Km/h at a high speed, and low speed is not more than
3Km/h, and with the stabilizing speed traveling and smoothly hydraulic lifting external stores no more than 3Km/h.
The present invention is achieved by following technical solution：
A kind of chassis fluid power system, including engine and hydraulic oil container, the engine are connected with by shaft coupling
Variable pump is in series with slippage pump and gear pump on variable pump, and variable pump is connected with controller, controller be equipped with gas pedal and
Brake pedal, variable pump are connected with drive axle, and hydraulic motor is embedded in drive axle.
The slippage pump is connected with lifting mechanism, and the hydraulic oil pipe connected on slippage pump is inserted into hydraulic oil container, lifting machine
Elevating ram is equipped in structure.
The gear pump downstream connection has hydraulic steering gear, and steering cylinder is equipped in hydraulic steering gear.
It is equipped with oily filter in the hydraulic oil container, oily filter is again provided between gear pump and hydraulic steering gear.
Manual pressure reducing valve is installed on the control piper of the gas pedal and variable pump.
The hydraulic oil container is equipped with air filter.
The beneficial effects of the invention are as follows：
Compared with prior art, chassis fluid power system provided by the invention has the following advantages：
1) chassis driving uses hydraulic technique, and simple operation, stability is strong, high degree of automation；
2) drive axle and hydraulic motor are become one, space availability ratio is high and is convenient for the maintenance of hydraulic motor；
3) hydraulic-driven chassis is used, it is securely and reliably, efficient and convenient, working efficiency is improved to greatest extent.
Description of the drawings
Fig. 1 is the hydraulic schematic diagram of the present invention；
In figure：1- engines, 2- shaft couplings, 3- variable pumps, 4- slippage pumps, 5- gear pumps, 6- controllers, 7- brakings are stepped on
Plate, 8- gas pedals, 9- hydraulic oil containers, 10- oily filters, 11- drive axles, 12- lifting mechanisms, 13- air filters, 14- hydraulic steering gears,
15- steering cylinders, 16- manual control pressure reducing valves.
Specific implementation mode
Technical scheme of the present invention is described further below in conjunction with attached drawing, but required protection domain does not limit to
In described；
As shown in Figure 1, chassis fluid power system provided by the invention, including engine 1 and hydraulic oil container 9, the hair
Motivation 1 is connected with variable pump 3 by shaft coupling 2, and slippage pump 4 and gear pump 5, variable pump 3 and controller are in series on variable pump 3
6 are connected, and controller 6 is equipped with gas pedal 8 and brake pedal 7, and variable pump 3 is connected with drive axle 11, are embedded in drive axle 11
There is hydraulic motor.
The slippage pump 4 is connected with lifting mechanism 12, and the hydraulic oil pipe connected on slippage pump 4 is inserted into hydraulic oil container 9, lifts
It rises and is equipped with elevating ram in mechanism 12.
5 downstream connection of the gear pump has hydraulic steering gear 14, and steering cylinder 15 is equipped in hydraulic steering gear 14.
It is equipped with oily filter 10 in the hydraulic oil container 9, oily filter 10 is again provided between gear pump 5 and hydraulic steering gear 14.
The gas pedal 8 is equipped with manual pressure reducing valve 16 on the control piper of variable pump 3.
The hydraulic oil container 9 is equipped with air filter 13.
The operation principle of the present invention is that：The system be all-hydraulic control, engine 1 by shaft coupling 2 output power to
Hydraulic variable displacement pump 3 changes flow and the direction of variable pump 3 by controller 6.Pass through a gas pedal 8 and 6 phase of controller
Even, when by gas pedal 8, (or backward) depresses forward, the rotating speed of engine 1 increases, and the flow of variable pump 3 and slippage pump 4 increases
Greatly, hydraulic energy is passed to by drive axle 11 by fluid pressure line, the rotation of the hydraulic motor in drive axle 11 is driven (not show in figure
Go out), realize that vehicle forward with the increasing of 8 stroke of gas pedal accelerate by (or backward) walking, the speed of vehicle；Non- step on the gas is stepped on
It is back to middle position automatically when plate 8, and hydraulic system realizes static pressure braking, and vehicle, which is realized, to be stopped.
The system can realize variable speed and fine motion function of the vehicle speed in 0~20Km/h, in gas pedal 8 and change
There are one manual pressure reducing valves 16 for installation on the control piper of amount pump 3, and driving is controlled by the adjusting of manual pressure reducing valve 16
Speed realizes that high speed is not more than 20Km/h, low speed is not more than 3Km/h, and to be not more than the steady of 3Km/h (containing moving forward and backward)
Determine speed traveling, ensures that engine 1 does not stop working, transmission system is not trembled.High bottom gear when driving, can pass through change throttle
The stroke of pedal 8 changes the discharge capacity of variable pump 3, to realizing the variable speed of vehicle.When vehicle failure need to drag,
Unlock can be opened, static pressure braking is released, to drag vehicle, realizes manual steering.When pushing brake pedal 7, it is ensured that vehicle
Be not in the phenomenon moved because accidental operation is slipped up during the work time.If any superpressure phenomenon, excessive liquid when work
Pressure oil will return hydraulic oil container 9 by oil return pipe aerial drainage.
3 concatenated slippage pump 5 of variable pump and gear pump 5 are lifting and steering fuel feeding.When steering, pass through rotation direction
Dribbling hydrodynamic pressure steering gear 14 adjusts the oil mass into steering cylinder 15, controls the size of turning circle diameter.The lifting of lifting mechanism
And leveling, by controlling reversing handle, control completes the action of lifting (or decline) and leveling pallet into the oil mass of oil cylinder.
Claims (1)
1. a kind of chassis fluid power system, including engine (1) and hydraulic oil container (9), it is characterised in that：The engine
(1) variable pump (3) is connected with by shaft coupling (2), slippage pump (4) and gear pump (5), variable pump is in series on variable pump (3)
(3) it is connected with controller (6), controller (6) is equipped with gas pedal (8) and brake pedal (7), variable pump (3) and drive axle
(11) it is connected, hydraulic motor is embedded in drive axle (11)；
The slippage pump (4) is connected with lifting mechanism (12), and the hydraulic oil pipe connected on slippage pump (4) is inserted into hydraulic oil container (9)
It is interior, elevating ram is equipped in lifting mechanism (12)；
Gear pump (5) downstream connection has hydraulic steering gear (14), and steering cylinder (15) is equipped in hydraulic steering gear (14)；
It is equipped with oily filter (10) in the hydraulic oil container (9), oily filter is again provided between gear pump (5) and hydraulic steering gear (14)
(10)；
The gas pedal (8) is equipped with manual pressure reducing valve (16) on the control piper of variable pump (3)；
The hydraulic oil container (9) is equipped with air filter (13)；
The application method of the chassis fluid power system is：Engine (1) is outputed power by shaft coupling (2) to be become to hydraulic pressure
Amount pump (3) changes flow and the direction of variable pump (3) by controller (6)；Pass through a gas pedal (8) and controller (6)
It is connected, when depressing gas pedal (8) forward or backward, the rotating speed of engine (1) increases, variable pump (3) and slippage pump (4)
Flow increase, hydraulic energy is passed to by drive axle (11) by fluid pressure line, the hydraulic motor in drive axle (11) is driven to turn
It is dynamic, realize that vehicle is walked forward or backward, the speed of vehicle is accelerated with the increasing of gas pedal (8) stroke；Non- step on the gas is stepped on
It is back to middle position automatically when plate (8), and hydraulic system realizes that static pressure braking, vehicle stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843886.0A CN105416050B (en) | 2015-11-28 | 2015-11-28 | A kind of chassis fluid power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843886.0A CN105416050B (en) | 2015-11-28 | 2015-11-28 | A kind of chassis fluid power system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105416050A CN105416050A (en) | 2016-03-23 |
| CN105416050B true CN105416050B (en) | 2018-07-24 |
Family
ID=55494759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510843886.0A Active CN105416050B (en) | 2015-11-28 | 2015-11-28 | A kind of chassis fluid power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105416050B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7185730B2 (en) * | 2004-12-18 | 2007-03-06 | Sauer-Danfoss Aps | Hydraulic steering arrangement |
| CN101177122A (en) * | 2007-12-10 | 2008-05-14 | 常州科研试制中心有限公司 | Bidirectional steering vehicle transmission system |
| CN201971601U (en) * | 2010-10-31 | 2011-09-14 | 合肥搬易通科技发展有限公司 | Three-wheel drive four-way static pressure forklift truck hydraulic system |
| CN202879244U (en) * | 2012-11-20 | 2013-04-17 | 长沙中联重科环卫机械有限公司 | Closed type hydraulic system for controlling running of vehicle, as well as vehicle |
| CN104033433A (en) * | 2014-05-06 | 2014-09-10 | 长安大学 | Hydraulic control system based on single-engine road sweeper |
| CN203868275U (en) * | 2014-04-22 | 2014-10-08 | 交城县华昌泰机械制造有限公司 | Hydraulic stepless speed change transmission mechanism |
| CN205130931U (en) * | 2015-11-28 | 2016-04-06 | 贵州航天特种车有限责任公司 | Chassis hydraulic drive system |
-
2015
- 2015-11-28 CN CN201510843886.0A patent/CN105416050B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7185730B2 (en) * | 2004-12-18 | 2007-03-06 | Sauer-Danfoss Aps | Hydraulic steering arrangement |
| CN101177122A (en) * | 2007-12-10 | 2008-05-14 | 常州科研试制中心有限公司 | Bidirectional steering vehicle transmission system |
| CN201971601U (en) * | 2010-10-31 | 2011-09-14 | 合肥搬易通科技发展有限公司 | Three-wheel drive four-way static pressure forklift truck hydraulic system |
| CN202879244U (en) * | 2012-11-20 | 2013-04-17 | 长沙中联重科环卫机械有限公司 | Closed type hydraulic system for controlling running of vehicle, as well as vehicle |
| CN203868275U (en) * | 2014-04-22 | 2014-10-08 | 交城县华昌泰机械制造有限公司 | Hydraulic stepless speed change transmission mechanism |
| CN104033433A (en) * | 2014-05-06 | 2014-09-10 | 长安大学 | Hydraulic control system based on single-engine road sweeper |
| CN205130931U (en) * | 2015-11-28 | 2016-04-06 | 贵州航天特种车有限责任公司 | Chassis hydraulic drive system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105416050A (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203868275U (en) | Hydraulic stepless speed change transmission mechanism | |
| CN205136169U (en) | Hydraulic pressure traveling system by motor speed controller | |
| CN103738154B (en) | The electric-hydraulic combined four-wheel-drive hybrid power system of oil and control method | |
| CN101566200A (en) | Pneumatic and hydraulic liquid power retarder controller | |
| CN104791311B (en) | A kind of engineering truck hydraulic moving control system | |
| CN103790876B (en) | A kind of Closed circuit hydraulic transmission system | |
| CN202378697U (en) | Travel hydraulic control system and self-propelled engineering machinery applying such control system | |
| CN201320956Y (en) | Four-wheel fully-driven hydraulic hybrid power transmission device of bus | |
| CN103899724A (en) | Hydraulic stepless speed-change transmission mechanism | |
| CN102785694B (en) | Hydraulic system for controlling vehicle to realize two-way travelling | |
| CN201922928U (en) | Hydraulic running differential device of snow thrower | |
| CN205130931U (en) | Chassis hydraulic drive system | |
| CN105416050B (en) | A kind of chassis fluid power system | |
| CN203062948U (en) | Hydraulic pilot control system of oil-liquid hybrid power concrete mixer truck | |
| CN203186097U (en) | Single-pump double-motor hydraulic transmission system | |
| CN107906060A (en) | Vehicle parallel type hydraulic hybrid power system and its method with energy regenerating release function | |
| CN202088879U (en) | Hydraulically-driven rail driving system for rail fire truck | |
| CN100572128C (en) | Hydraulic transmission energy accumulation vehicle | |
| CN209395864U (en) | A kind of hydraulic system of wide dumper | |
| CN204587015U (en) | A kind of crawler type field machine fluid-link steering and brake integrated system | |
| CN102003432A (en) | Electro-hydraulic actuator | |
| CN105564227A (en) | Sandwich mechanical hydraulic compound transmission case, and road maintenance truck power control method | |
| CN105971955A (en) | Hydraulic system of wheel type orchard operation platform | |
| CN207550178U (en) | A kind of device for reducing hydraulic-driven traveling vehicle braking distance | |
| CN203717499U (en) | Closed type hydraulic transmission system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |