CN207190793U - 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
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- CN207190793U CN207190793U CN201720928972.6U CN201720928972U CN207190793U CN 207190793 U CN207190793 U CN 207190793U CN 201720928972 U CN201720928972 U CN 201720928972U CN 207190793 U CN207190793 U CN 207190793U
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- speed changer
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Abstract
It the utility model is related 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 include 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, speed changer lower end both sides and is connected respectively by inter-axle shaft and front propeller shaft with rear driving axle and front driving axle from top to bottom；Installation is used for the gearshift controller for controlling speed changer to carry out self shifter operation 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 utility model 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 utility model 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 China largely produces and used at present is all 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 utility model for solve technical problem present in known technology provide it is a kind of it is simple in construction, easy to operate,
Transmission efficiency, the all-hydraulic walking loader transmission system that power train arrangement mode is exchanged with current loading machine fluid transmission
System.
The utility model 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 include 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 are 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；Installation is used for carrying out self shifter operation according to the work and walking operating conditions speed changer of loading machine on the speed changer
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 utility model can also use following technical measures：
Also there is hydraulic cooling system, the walking hydraulic controller for being used for cooling down heat caused by 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 utility model has the advantages and positive effects of：A kind of all-hydraulic walking loader transmission system, passes through control
The rotary speed of motor, makes loading machine be seamlessly transitted in local-speed mode of operation and high-speed operation mode, and by controlling hydraulic pressure
The conversion advanced, retreated is realized in the direction of rotation of motor, has continuous stepless speed change and a good starting performance.Meanwhile should
The forward and backward power transmission shaft of power train, forward and backward drive axle and engine and original loader transmission shaft, drive axle and engine phase
Together.So the utility model can be realized general with the primary drive part of existing loading machine, can reach simple in construction, versatility
By force, manufacturing cost is low, and integrated level is high, rational in infrastructure, the good purpose of maintenanceability.Using walking hydraulic continuous variable transmission
System can make engine be worked under optimum operating speed and consumption minimization, reach easy to operate, energy-efficient purpose.
In addition, all-hydraulic walking loader transmission system of the present utility model can be with current loading machine, including China's batch is most
50 big loading machine hydrodynamic drive speed changer installation dimensions match completely, and can change the outfit 50 loading machine hydrodynamic drive speed changers this hair
Bright all-hydraulic walking power train.The attachment structure form of the engine of the power train, speed changer and Hydraulic Elements also may be used simultaneously
For substituting original hydraulic transmission gearbox transmission system such as land leveller.
The utility model relates generally to the arrangement and technical scheme and more of all-hydraulic walking loader transmission system
More particularly to main computer boxes change it is minimum in the case of, easily realize original hydraulic power product technology upgrading and
The different configuration of seriation requirement of product；The loading machine being made up of an at least walking plunger pump and two running motors is walked
Hydraulic Adjustable Speed power train, it can reach simple in construction, easy to operate, transmission efficiency, power train arrangement mode and current loading
The purpose that machine fluid transmission exchanges.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
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
For invention, features and effects of the present utility model can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes 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 include 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 are 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, for hydraulic energy is changed into mechanical energy, have gear pair by machine in 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 controlling 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
Steering hydraulic pump 3, working solution press pump 4, walking plunger pump 5, high-speed motor 6 and zero motor 7, speed changer 2 are interior by respective
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
Upper installation is used for carrying out the gearshift controller 13 of self shifter operation according to the work and walking operating conditions speed changer of loading machine；
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 heat caused by 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 the conversion advanced, retreated is 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 the utility model can be realized general with the primary drive part of existing loading machine, reachable
To simple in construction, versatile, manufacturing cost is low, and integrated level is high, rational in infrastructure, the good purpose of maintenanceability.Using walking liquid
Pressure continuous stepless gear system can make engine be worked under optimum operating speed and consumption minimization, reach easy to operate, high
Imitate the purpose of energy-conservation.
In addition, all-hydraulic walking loader transmission system of the present utility model can be with current loading machine, including China's batch is most
50 big loading machine hydrodynamic drive speed changer installation dimensions match completely, and can change the outfit 50 loading machine hydrodynamic drive speed changers this hair
Bright all-hydraulic walking power train.The attachment structure form of the engine of the power train, speed changer and Hydraulic Elements also may be used simultaneously
For substituting original hydraulic transmission gearbox transmission system such as land leveller.
The utility model relates generally to the arrangement and technical scheme and more of all-hydraulic walking loader transmission system
More particularly to main computer boxes change it is minimum in the case of, easily realize original hydraulic power product technology upgrading and
The different configuration of seriation requirement of product；The loading machine being made up of an at least walking plunger pump and two running motors is walked
Hydraulic Adjustable Speed power train, it can reach simple in construction, easy to operate, transmission efficiency, power train arrangement mode and current loading
The purpose that machine fluid transmission exchanges.
Described above is only to preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, it is every according to the technical essence of the utility model to any simple modification made for any of the above embodiments, equivalent variations with
Modification, is belonged in the range of technical solutions of the utility model.
Claims (2)
- A kind of 1. 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 include 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； Installation is used for carrying out self shifter operation according to the work and walking operating conditions speed changer of loading machine on the speed changer (2) Gearshift controller (13)；The walking hydraulic controller (14) is also mounted on speed changer, for controlling hydraulic pump and motor Discharge capacity, automatic stepless speed-regulating can be realized.
- 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) of heat, hydraulic cooling system (8) pass through pipeline and steering hydraulic pump caused by the work of pressure system (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 |
|---|---|---|---|
| CN201720928972.6U CN207190793U (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 |
|---|---|---|---|
| CN201720928972.6U CN207190793U (en) | 2017-07-27 | 2017-07-27 | A kind of all-hydraulic walking transmission system of wheel loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207190793U true CN207190793U (en) | 2018-04-06 |
Family
ID=61799006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720928972.6U Active CN207190793U (en) | 2017-07-27 | 2017-07-27 | A kind of all-hydraulic walking transmission system of wheel loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207190793U (en) |
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2017
- 2017-07-27 CN CN201720928972.6U patent/CN207190793U/en active Active
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