CN203637570U - Hydrostatic drive wheel type tractor transmission system - Google Patents
Hydrostatic drive wheel type tractor transmission system Download PDFInfo
- Publication number
- CN203637570U CN203637570U CN201320875306.2U CN201320875306U CN203637570U CN 203637570 U CN203637570 U CN 203637570U CN 201320875306 U CN201320875306 U CN 201320875306U CN 203637570 U CN203637570 U CN 203637570U
- Authority
- CN
- China
- Prior art keywords
- secondary component
- servo valve
- transmission system
- oil pipe
- drive 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a hydrostatic drive wheel type tractor transmission system. The hydrostatic drive wheel type tractor transmission system comprises a load, a secondary component, an optical-electricity encoder, a one-way valve, a hydraulic energy accumulator, a filter, an electro-hydraulic servo valve, a variable control cylinder, a swash plate wing angle sensor, a speed controller, a swing angle position controller and a control amplifier, wherein the load is connected with the secondary component through a transmission shaft; the optical-electricity encoder is connected with the secondary component through a sensor; the one-way valve is installed between the hydraulic energy accumulator and the secondary component through an oil pipe; the filter is installed between the hydraulic energy accumulator and the input end of the electro-hydraulic servo valve through an oil pipe; two oil inlets of the variable control cylinder are connected with the output end of the electro-hydraulic servo valve through an oil pipe; the swash plate wing angle sensor is installed on the variable control cylinder; the speed controller and the swing angle position controller are installed at the input end of the control amplifier; the output end of the control amplifier is connected with the control end of the electro-hydraulic servo valve through a circuit. The hydrostatic drive wheel type tractor transmission system has the advantages of achieving stepless speed change adjustment and forward and backward rotation easily, being capable of preventing an engine from being overloaded, being high in reliability and the like.
Description
Technical field
The utility model relates to a kind of quiet liquid driving wheel formula tractor transmission system, particularly taking wheel-tire tractor as research object field machine field of research.
Background technology
At present, known automobile and tractor driving system type comprises mechanical type, hydraulic type and electric power type, and wherein hydraulic type is divided into again two kinds of hydraulic mechanical type and hydrostatics.Common form mainly contains following several:
Mechanical transmission system is widely used in trac. system compared with low compared with high, simple in structure, reliable operation, cost because of efficiency.But the huge structure such as transmission shaft in this driving system, power-transfer clutch, change speed gear box, takies large quantity space, in addition, in vehicle launch and braking procedure, energy dissipation is larger.
Comparatively speaking, hydraulic mechanical type drive system structure complexity, cost are higher, but the reasonableness of selecting due to comfort feature and the gear of its manipulation is widely used in car and part heavy motor vehicle and large tractor.
Hydrostatic driving system cost is higher, but has driveline arrangement feature flexibly, is therefore widely used in construction machinery and equipment and military-designed vehicle.
The performance of electric power type transmission system is close with quiet liquid formula transmission system, but motor quality is more much bigger than oil pump and HM Hydraulic Motor, applies therefore be only limited at present on superduty automobile.
For wheel-tire tractor, above-mentioned said driving system has following deficiency and shortcoming: take too much vehicle space; In vehicle launch and braking procedure, waste a large amount of energy; Complex structure, cost is high, cost is too high, is not suitable for field machine application etc.
Summary of the invention
In order to overcome the deficiencies in the prior art and defect, the purpose of this utility model is to provide a kind of quiet liquid driving wheel formula tractor transmission system, this system designs based on secondary adjusting hydrostatic drive technology, it not only can meet above-mentioned requirement, and can realize electrodeless variable-speed regulate, easily realize rotating, can prevent driving engine overload operation and reliability high.
It is a kind of driving system of quiet liquid driving wheel formula trac. that the utility model solves the technical scheme that its technical matters adopts, and comprises load 1, secondary component 2, photoelectric encoder 3, check valve 4, hydraulic accumulator 5, filter 6, electrohydraulic servo valve 7, quantitative control cylinder 8, swash plate angle sensor 9, speed controller 10, swash angle position controller 11, control amplifier 12.Described load 1 is connected with secondary component 2 by transmission shaft, described photoelectric encoder 3 is connected with secondary component 2 by sensor, rotating speed to secondary component 2 is measured, described check valve 4 is arranged between hydraulic accumulator 5 and secondary component 2 by oil pipe, described filter 6 is arranged between hydraulic accumulator 5 and electrohydraulic servo valve 7 input ends by oil pipe, two oil inlets of described quantitative control cylinder 8 are connected with the mouth of electrohydraulic servo valve 7 by oil pipe, described swash plate angle sensor 9 is arranged on quantitative control cylinder 8, described speed controller 10 and swash angle position controller 11 are arranged on the input end of control amplifier, collecting respectively secondary component 2 sends the swash angle position that speed signal and swash plate angle sensor 9 send and changes, the mouth of described control amplifier 12 is connected with the control end of electrohydraulic servo valve 7 by circuit.
The principle of work of a kind of quiet liquid driving wheel formula tractor transmission system of the utility model is: engine drive constant pressure variable displacement pump is for system provides constant voltage power oil sources, and the hydraulic pump/motor with two reciprocal characteristics drives trac. to travel as power element.Hydraulic accumulator is placed between controllable capacity pump and hydraulic pump/motor as energy storage units, reclaim the braking kinetic energy of trac. and the surplus power of trac., be stored in that energy in hydraulic accumulator can be used for that trac. accelerates or provide energy for other device of vehicle.The introducing of hydraulic accumulator has disconnected contacting directly of driving engine and extraneous load, can pulsation-free work relatively in a specific operation region.
The advantage of a kind of quiet liquid driving wheel formula tractor transmission system of the utility model is: it designs based on the quiet liquid regulation technology of secondary, can reclaim the braking kinetic energy that conventional truck slatterns, be stored in high-pressure hydraulic accumulator, the energy reclaiming can provide auxiliary energy in tractor starting or accelerator, thereby reduce the installed power of driving engine, reduce oil consumption, reduce the discharge of pernicious gas, extend the service life of the parts such as automobile braking device; With respect to electric hybrid powering technology, quiet liquid transmission power density is large, completes energy release and storage capacity strong in the short time, and hydraulic pump/motor output torque is large, and control accuracy is high, fast response time, and compact conformation, quality is light, and required installing space is little.
Brief description of the drawings
Fig. 1 is a kind of quiet liquid driving wheel formula tractor transmission system fundamental diagram of the utility model.
Fig. 2 is the quiet liquid transfer motion power of a kind of quiet liquid driving wheel formula tractor transmission system of the utility model system diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, the utility model is further described:
A driving system for quiet liquid driving wheel formula trac., comprises load 1, secondary component 2, photoelectric encoder 3, check valve 4, hydraulic accumulator 5, filter 6, electrohydraulic servo valve 7, quantitative control cylinder 8, swash plate angle sensor 9, speed controller 10, swash angle position controller 11, control amplifier 12.Described load 1 is connected with secondary component 2 by transmission shaft, described photoelectric encoder 3 is connected with secondary component 2 by sensor, rotating speed to secondary component 2 is measured, described check valve 4 is arranged between hydraulic accumulator 5 and secondary component 2 by oil pipe, described filter 6 is arranged between hydraulic accumulator 5 and electrohydraulic servo valve 7 input ends by oil pipe, two oil inlets of described quantitative control cylinder 8 are connected with the mouth of electrohydraulic servo valve 7 by oil pipe, described swash plate angle sensor 9 is arranged on quantitative control cylinder 8, described speed controller 10 and swash angle position controller 11 are arranged on the input end of control amplifier, collecting respectively secondary component 2 sends the swash angle position that speed signal and swash plate angle sensor 9 send and changes, the mouth of described control amplifier 12 is connected with the control end of electrohydraulic servo valve 7 by circuit.
The quiet liquid of described secondary regulates driving system also to have stepless change and regulates, easily realizes rotating, can prevent driving engine overload and reliability high.
Claims (1)
1. a quiet liquid driving wheel formula tractor transmission system, comprise load (1), secondary component (2), photoelectric encoder (3), check valve (4), hydraulic accumulator (5), filter (6), electrohydraulic servo valve (7), quantitative control cylinder (8), swash plate angle sensor (9), speed controller (10), swash angle position controller (11), control amplifier (12), it is characterized in that: described load (1) is connected with secondary component (2) by transmission shaft, described photoelectric encoder (3) is connected with secondary component (2) by sensor, described check valve (4) is arranged between hydraulic accumulator (5) and secondary component (2) by oil pipe, described filter (6) is arranged between hydraulic accumulator (5) and electrohydraulic servo valve (7) input end by oil pipe, two oil inlets of described quantitative control cylinder (8) are connected with the mouth of electrohydraulic servo valve (7) by oil pipe, described swash plate angle sensor (9) is arranged on quantitative control cylinder (8), described speed controller (10) and swash angle position controller (11) are arranged on the input end of control amplifier (12), the mouth of described control amplifier (12) is connected with the control end of electrohydraulic servo valve (7) by circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875306.2U CN203637570U (en) | 2013-12-17 | 2013-12-17 | Hydrostatic drive wheel type tractor transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875306.2U CN203637570U (en) | 2013-12-17 | 2013-12-17 | Hydrostatic drive wheel type tractor transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203637570U true CN203637570U (en) | 2014-06-11 |
Family
ID=50868844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320875306.2U Expired - Fee Related CN203637570U (en) | 2013-12-17 | 2013-12-17 | Hydrostatic drive wheel type tractor transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203637570U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112693520A (en) * | 2021-01-08 | 2021-04-23 | 北京理工大学 | Steering control strategy for regulating rotating speed of hydrostatic drive tracked vehicle |
| CN112855631A (en) * | 2021-02-03 | 2021-05-28 | 北京航空航天大学 | Hatch door actuating system |
-
2013
- 2013-12-17 CN CN201320875306.2U patent/CN203637570U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112693520A (en) * | 2021-01-08 | 2021-04-23 | 北京理工大学 | Steering control strategy for regulating rotating speed of hydrostatic drive tracked vehicle |
| CN112855631A (en) * | 2021-02-03 | 2021-05-28 | 北京航空航天大学 | Hatch door actuating system |
| CN112855631B (en) * | 2021-02-03 | 2022-04-05 | 北京航空航天大学 | Hatch door actuating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102300754B (en) | Braking energy recovery system for a vehicle and vehicle equipped with same | |
| CN103407449B (en) | A kind of hydraulic pressure assistive drive and brake system and control method thereof | |
| US7669414B2 (en) | Hydraulic energy recovery system with dual-powered auxiliary hydraulics | |
| CN103223849B (en) | A kind of parallel-connection type hybrid power driver for vehicle | |
| CN202130300U (en) | Flywheel energy storage hydraulic driving device of hybrid power vehicle | |
| JP2012510911A5 (en) | ||
| CN101068696A (en) | Hydraulic hybrid drive system | |
| CN101220601A (en) | Hydrostatic transmission grader | |
| CN1706680A (en) | Driving system for a mobile machine, in particular ground transfer machine | |
| CN101704336A (en) | Energy-saving hydraulic hybrid power system of loader | |
| CN102897012B (en) | A kind of hybrid power loop based on machine liquid associating energy regeneration | |
| CN201320956Y (en) | Four-wheel fully-driven hydraulic hybrid power transmission device of bus | |
| CN103741576B (en) | A kind of small-sized pavement milling machine traveling control system | |
| CN203637570U (en) | Hydrostatic drive wheel type tractor transmission system | |
| CN204662544U (en) | A kind of fluid electric mixed dynamic system of loader | |
| CN203439027U (en) | Hydraulic auxiliary drive and brake system | |
| CN2736202Y (en) | Tandem type hydraulic mixed power transmitting means for public transport automobile | |
| CN202345360U (en) | Hydrostatic transmission hybrid power drive apparatus based on hydraulic transformer vehicles | |
| CN101774351A (en) | Hydraulic hybrid vehicle flexible braking device | |
| CN105437947B (en) | Trackless rubber-tyred command car | |
| CN204687842U (en) | Wheel tyre walking hydraulic pressure auxiliary drive | |
| CN201235735Y (en) | Parallel hydraulic hybrid power transmission device of public automotive vehicle | |
| CN201162238Y (en) | Hydrostatic transmission grader | |
| CN102635275B (en) | Novel hydraulic lock | |
| CN201277213Y (en) | Series connection type secondary regulation hydraulic hybrid power transmission of loader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |