CN107310384A - A kind of all-hydraulic walking transmission system of wheel loader - Google Patents
A kind of all-hydraulic walking transmission system of wheel loader Download PDFInfo
- Publication number
- CN107310384A CN107310384A CN201710624560.8A CN201710624560A CN107310384A CN 107310384 A CN107310384 A CN 107310384A CN 201710624560 A CN201710624560 A CN 201710624560A CN 107310384 A CN107310384 A CN 107310384A
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- Prior art keywords
- walking
- hydraulic
- motor
- speed changer
- speed
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Classifications
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- 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
- 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
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/356—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
The present invention relates to a kind of all-hydraulic walking transmission system of wheel loader, including engine；Speed changer；Steering hydraulic pump；Working solution press pump；At least one walking plunger pump；At least one set of motor, one group of motor includes a high-speed motor and a zero motor；At least one gearshift controller and a walking hydraulic controller；Speed changer side is directly connected with engine, the opposite side of speed changer is separately installed with steering hydraulic pump, working solution press pump, walking plunger pump, high-speed motor and zero motor from top to bottom, and speed changer lower end both sides are connected by inter-axle shaft and front propeller shaft with rear driving axle and front driving axle respectively；The gearshift controller for being used for controlling speed changer to carry out self shifter operation is installed on speed changer；Walking hydraulic controller is used for controlling the discharge capacity of hydraulic pump and motor, can realize automatic stepless speed-regulating.The present invention has simple in construction, easy to operate, transmission efficiency, the purpose that power train arrangement mode is exchanged with current loading machine fluid transmission.
Description
Technical field
The invention belongs to loading machine technical field, more particularly to a kind of all-hydraulic walking transmission system of wheel loader.
Background technology
Loading machine walking power train performance to the fuel economy of loading machine, operating efficiency, discharge and reliability all
Have a great impact.Loading machine mainly includes scraper bowl 18, front tyre 5, front driving axle 10, front propeller shaft 9, speed changer 2, rear transmission
Axle 11, rear driving axle 12, rear tyre 16, engine 1, rear counterweight 17 etc., refer to Fig. 2.The hydraulic pressure of all-hydraulic walking loading machine
Regulator drive system has the advantages that wider stepless speed regulation scope, good starting characteristic and higher transmission efficiency, Ke Yigen
According to road surface and working condition, optimize engine behavior, vehicle is obtained optimal driving performance, disclosure satisfy that vehicle economy
Property, the requirement of dynamic property and comfortableness, be a kind of preferably walking type of belt drive.
The loading machine that current China largely produces and used all is hydraulic mechanical, and this hydromechanical transmission is main
It is made up of engine, double turbine hydrodynamic drive speed changers, front and rear power transmission shaft and drive axle.The major defect of the power train has：(1)
Torque converter drive efficiency is low, especially in low speed.(2) speed changer advances and retreated commutation frictionally clutch, gearshift
Impact is big, and transmission reliability is poor.(3) double hydrotransmitters have one-way clutch, complicated, easily break down.
The content of the invention
The present invention provides a kind of simple in construction, easy to operate, transmission to solve technical problem present in known technology
Efficiency high, the all-hydraulic walking transmission system of wheel loader that power train arrangement mode is exchanged with current loading machine fluid transmission.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
A kind of all-hydraulic walking transmission system of wheel loader, it is characterised in that：Including engine；Speed changer；Steering hydraulic pump；
Working solution press pump；At least one walking plunger pump；At least one set of motor, one group of motor includes a high-speed motor and one
Zero motor；At least one gearshift controller and a walking hydraulic controller；The speed changer side directly with engine phase
Connection, the opposite side of speed changer is separately installed with steering hydraulic pump, working solution press pump, walking plunger pump, high Smart from top to bottom
Reach and zero motor, the lower end both sides of speed changer pass through inter-axle shaft and front propeller shaft and rear driving axle and front driving axle phase respectively
Connection；Installed on the speed changer and be used for carrying out self shifter operation according to the work and walking operating conditions speed changer of loading machine
Gearshift controller；The walking hydraulic controller is also mounted on speed changer, for controlling the discharge capacity of hydraulic pump and motor, is made
It can realize automatic stepless speed-regulating.
The present invention can also use following technical measures：
Also there is hydraulic cooling system, the walking hydraulic controller for being used for cooling down the heat produced during hydraulic work system,
Hydraulic cooling system passes through pipeline and steering hydraulic pump, working solution press pump, walking plunger pump and high-speed motor and zero motor phase
Connection.
The present invention has the advantages and positive effects of：A kind of all-hydraulic walking loader transmission system, by controlling motor
Rotary speed, loading machine is seamlessly transitted in local-speed mode of operation and high-speed operation mode, and by controlling hydraulic motor
Direction of rotation come realize advance, retreat conversion, with continuous stepless speed change and good starting performance.Meanwhile, the transmission
The forward and backward power transmission shaft of system, forward and backward drive axle and engine are identical with original loader transmission shaft, drive axle and engine.This
Sample invention can be realized general with the primary drive part of existing loading machine, can reach simple in construction, highly versatile, be manufactured into
This is low, and integrated level is high, rational in infrastructure, the good purpose of maintenanceability.Using walking hydraulic continuous variable transmission, system can make hair
Motivation works under optimum operating speed and consumption minimization, reaches purpose easy to operate, energy-efficient.
In addition, the all-hydraulic walking loader transmission system of the present invention can be maximum with current loading machine, including China batch
50 loading machine hydrodynamic drive speed changer installation dimensions are matched completely, and 50 loading machine hydrodynamic drive speed changers can be changed the outfit to the present invention's
All-hydraulic walking power train.The attachment structure form of the engine of the power train, speed changer and Hydraulic Elements can also be used for simultaneously
Substitute original hydraulic transmission gearbox transmission systems such as land leveller.
Present invention relates in general to the arrangement of all-hydraulic walking loader transmission system and technical scheme and more specifically
Ground is related in the case where main computer boxes changes minimum, easily realizes technology upgrading and the product of original hydraulic power product
Different configuration of seriation requirement；The loading machine walking hydraulic pressure being made up of at least one walking plunger pump and two running motors
Regulator drive system, can reach simple in construction, easy to operate, transmission efficiency, power train arrangement mode and current loading machine liquid
The purpose that power power train is exchanged.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is loading machine structural representation.
In figure：1st, engine；2nd, speed changer；3rd, steering hydraulic pump；4th, working solution press pump；5th, walking plunger pump；6th, at a high speed
Motor；7th, zero motor；8th, hydraulic cooling system；9th, front propeller shaft；10th, front driving axle；11st, inter-axle shaft；12nd, rear driving
Bridge；13rd, gearshift controller；14th, walking hydraulic controller；15th, front tyre；16th, rear tyre；17th, rear counterweight；18th, scraper bowl.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Refer to Fig. 1 and Fig. 2, a kind of all-hydraulic walking transmission system of wheel loader, including engine 1；Speed changer 2；Turn to
Hydraulic pump 3；Working solution press pump 4；At least one walking plunger pump 5；At least one set of motor, one group of motor includes a high speed
Motor 6 and a zero motor 7；At least one gearshift controller 13 and a walking hydraulic controller 14；
Above-mentioned engine 1, its effect is to provide mechanical energy；Working solution press pump 4, steering hydraulic pump 3, walking plunger pump 5
It is connected with engine 1, for absorbing the mechanical energy of engine 1, and the mechanical energy of engine is changed into hydraulic energy；At least one
Individual walking plunger pump 5, it is connected with engine is changed into the mechanical energy of engine the hydraulic energy of loading machine walking needs；Can
There are two or more walking high, low speed motors 6,7, have gear pair by machine for hydraulic energy is changed into mechanical energy, speed changer 2
Tool can be output to front and rear drive axle, driving loading machine walking；At least one gearshift controller 13 and a walking hydraulic controller
14, it is used as control shift of transmission and vibration hydraulic system speed governing, to adapt to the speed needs of loading machine.
The side of speed changer 2 is directly connected with engine 1, and the opposite side of speed changer 2 is separately installed with from top to bottom
By respective in steering hydraulic pump 3, working solution press pump 4, walking plunger pump 5, high-speed motor 6 and zero motor 7, speed changer 2
The power of engine is passed to steering hydraulic pump 3, working solution press pump 4, walking plunger pump 5 by gear pair respectively.Under speed changer 2
End both sides are connected by inter-axle shaft 11 and front propeller shaft 9 with rear driving axle 12 and front driving axle 10 respectively；The speed changer 2
It is upper that the gearshift controller 13 for being used for that self shifter operation is carried out according to the work and walking operating conditions speed changer of loading machine is installed；
The walking hydraulic controller 14 is also mounted on speed changer, for controlling the discharge capacity of hydraulic pump and motor, can be realized certainly
Dynamic stepless speed regulation.
Also there is the hydraulic cooling system 8 for being used for cooling down the heat produced during hydraulic work system, hydraulic cooling system 8 leads to
Pipeline is crossed with steering hydraulic pump 3, working solution press pump 4, walking plunger pump 5 and high-speed motor 6 and zero motor 7 to be connected；
By controlling the rotary speed of motor, loading machine is set to be seamlessly transitted in local-speed mode of operation and high-speed operation mode,
And advance, the conversion retreated are realized by controlling the direction of rotation of hydraulic motor, with continuous stepless speed change and well
Starting performance.Meanwhile, the forward and backward power transmission shaft of the power train, forward and backward drive axle and engine and original loader transmission shaft,
Drive axle is identical with engine.So present invention can realize general with the primary drive part of existing loading machine, can reach knot
Structure is simple, and highly versatile, manufacturing cost is low, and integrated level is high, rational in infrastructure, the good purpose of maintenanceability.Connected using walking hydraulic pressure
Continuous variable transmission system can make engine be worked under optimum operating speed and consumption minimization, reach easy to operate, efficient section
The purpose of energy.
In addition, the all-hydraulic walking loader transmission system of the present invention can be maximum with current loading machine, including China batch
50 loading machine hydrodynamic drive speed changer installation dimensions are matched completely, and 50 loading machine hydrodynamic drive speed changers can be changed the outfit to the present invention's
All-hydraulic walking power train.The attachment structure form of the engine of the power train, speed changer and Hydraulic Elements can also be used for simultaneously
Substitute original hydraulic transmission gearbox transmission systems such as land leveller.
Present invention relates in general to the arrangement of all-hydraulic walking loader transmission system and technical scheme and more specifically
Ground is related in the case where main computer boxes changes minimum, easily realizes technology upgrading and the product of original hydraulic power product
Different configuration of seriation requirement；The loading machine walking hydraulic pressure being made up of at least one walking plunger pump and two running motors
Regulator drive system, can reach simple in construction, easy to operate, transmission efficiency, power train arrangement mode and current loading machine liquid
The purpose that power power train is exchanged.
It is described above to be only the preferred embodiments of the present invention, any formal limitation not is made to the present invention,
Every technical spirit according to the present invention is belonged to any simple modification made for any of the above embodiments, equivalent variations and modification
In the range of technical solution of the present invention.
Claims (2)
1. a kind of all-hydraulic walking transmission system of wheel loader, it is characterised in that：Including engine (1)；Speed changer (2)；Turn to liquid
Press pump (3)；Working solution press pump (4)；At least one walking plunger pump (5)；At least one set of motor, one group of motor includes one
High-speed motor (6) and a zero motor (7)；At least one gearshift controller (13) and a walking hydraulic controller (14)；
Speed changer (2) side is directly connected with engine (1), and the opposite side of speed changer (2) is separately installed with from top to bottom to be turned
To hydraulic pump (3), working solution press pump (4), walking plunger pump (5), high-speed motor (6) and zero motor (7), speed changer (2)
Lower end both sides are connected by inter-axle shaft (11) and front propeller shaft (9) with rear driving axle (12) and front driving axle (10) respectively；
Installed on the speed changer (2) and be used for carrying out self shifter operation according to the work and walking operating conditions speed changer of loading machine
Gearshift controller (13)；The walking hydraulic controller (14) is also mounted on speed changer, for controlling hydraulic pump and motor
Discharge capacity, can realize automatic stepless speed-regulating.
2. all-hydraulic walking transmission system of wheel loader according to claim 1, it is characterised in that：Also have and be used for coolant
The hydraulic cooling system (8) for the heat that pressure system is produced when working, hydraulic cooling system (8) passes through pipeline and steering hydraulic pump
(3), working solution press pump (4), walking plunger pump (5) and high-speed motor (6) are connected with zero motor (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624560.8A CN107310384A (en) | 2017-07-27 | 2017-07-27 | A kind of all-hydraulic walking transmission system of wheel loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624560.8A CN107310384A (en) | 2017-07-27 | 2017-07-27 | A kind of all-hydraulic walking transmission system of wheel loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107310384A true CN107310384A (en) | 2017-11-03 |
Family
ID=60175041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710624560.8A Withdrawn CN107310384A (en) | 2017-07-27 | 2017-07-27 | A kind of all-hydraulic walking transmission system of wheel loader |
Country Status (1)
| Country | Link |
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| CN (1) | CN107310384A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112104160A (en) * | 2020-11-11 | 2020-12-18 | 英轩重工有限公司 | Cooling device of loader and loader |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1026210A (en) * | 1996-07-08 | 1998-01-27 | Kanzaki Kokyukoki Mfg Co Ltd | Transmission of self-traveling type work machine |
| JP2002174333A (en) * | 2000-12-05 | 2002-06-21 | Hitachi Constr Mach Co Ltd | Wheel running type work vehicle |
| CN201124757Y (en) * | 2007-10-27 | 2008-10-01 | 福田雷沃国际重工股份有限公司 | Full hydraulic drive loading type tractor |
| JP2010043675A (en) * | 2008-08-11 | 2010-02-25 | Yanmar Co Ltd | Hydraulic-mechanical transmission |
| US20130152574A1 (en) * | 2010-08-31 | 2013-06-20 | Hitachi Construction Machinery Co., Ltd. | Working Vehicle Travel Control Apparatus |
| CN205220371U (en) * | 2015-12-19 | 2016-05-11 | 长安大学 | Loader hydraulic drive traveling system |
| WO2016080755A1 (en) * | 2014-11-20 | 2016-05-26 | 두산인프라코어 주식회사 | Transmission control system of wheel loader and control method thereof |
-
2017
- 2017-07-27 CN CN201710624560.8A patent/CN107310384A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1026210A (en) * | 1996-07-08 | 1998-01-27 | Kanzaki Kokyukoki Mfg Co Ltd | Transmission of self-traveling type work machine |
| JP2002174333A (en) * | 2000-12-05 | 2002-06-21 | Hitachi Constr Mach Co Ltd | Wheel running type work vehicle |
| CN201124757Y (en) * | 2007-10-27 | 2008-10-01 | 福田雷沃国际重工股份有限公司 | Full hydraulic drive loading type tractor |
| JP2010043675A (en) * | 2008-08-11 | 2010-02-25 | Yanmar Co Ltd | Hydraulic-mechanical transmission |
| US20130152574A1 (en) * | 2010-08-31 | 2013-06-20 | Hitachi Construction Machinery Co., Ltd. | Working Vehicle Travel Control Apparatus |
| WO2016080755A1 (en) * | 2014-11-20 | 2016-05-26 | 두산인프라코어 주식회사 | Transmission control system of wheel loader and control method thereof |
| CN205220371U (en) * | 2015-12-19 | 2016-05-11 | 长安大学 | Loader hydraulic drive traveling system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112104160A (en) * | 2020-11-11 | 2020-12-18 | 英轩重工有限公司 | Cooling device of loader and loader |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171103 |
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| WW01 | Invention patent application withdrawn after publication |