CN201376494Y - Hydraulic system for double power flow tracked vehicle - Google Patents
Hydraulic system for double power flow tracked vehicle Download PDFInfo
- Publication number
- CN201376494Y CN201376494Y CN200920147674U CN200920147674U CN201376494Y CN 201376494 Y CN201376494 Y CN 201376494Y CN 200920147674 U CN200920147674 U CN 200920147674U CN 200920147674 U CN200920147674 U CN 200920147674U CN 201376494 Y CN201376494 Y CN 201376494Y
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- Prior art keywords
- pump
- hydraulic
- power flow
- double power
- tracked vehicle
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- Expired - Fee Related
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Abstract
The utility model provides a hydraulic system for a double power flow tracked vehicle, comprising a volume adjustable hydraulic pump and a fixed displacement hydraulic motor. The hydraulic system for a double power flow tacked vehicle further comprises a slippage pump and an oil box; and a main oil passage of the hydraulic system comprises a filter, a spillover valve, the volume adjustable hydraulic pump, a slippage pump, the fixed displacement hydraulic motor, a cooler and the oil box.
Description
Technical field:
The utility model relates to a kind of hydraulic efficiency pressure system that is used for the double power flow continuously tracked vehicle, especially relates to the double power flow continuously tracked vehicle hydraulic efficiency pressure system of two groups of hydrostatic transmissions of a kind of employing.
Background technology:
Along with the increase of agriculture continuously tracked vehicle power and the raising of the speed of a motor vehicle, also more and more higher to the requirement of its turning efficiency and maneuvering performance.Traditional crawler vehicle often adopts hydrostatic transmission (Hydrostatic Transmission is called for short HST), hydrostatic transmission of the prior art generally adopts the high speed regime that controllable capacity pump-single fixed displacement motor constitutes, keep the drive axle of being with mechanical differential gear box, between HM Hydraulic Motor and Mechanical Driven bridge, be provided with the gear transmission of 2-4 shelves.Though such configuration can reduce the discharge capacity specification of required Hydraulic Pump and motor, and with the mechanically operated modification compatibility that adopts the belt continuously variable unit, but this configuration structure relative complex, driving efficiency is low, and is difficult to satisfy the power needs of high speed crawler vehicle.For this reason, research and design has dynamic property preferably, has the comprehensive wheel word of new-type double power flow continuously tracked vehicle hydraulic machinery of higher driving efficiency to have great significance again.。
The utility model content:
Technical problem to be solved in the utility model is exactly to provide a kind of hydraulic efficiency pressure system that is used for the double power flow continuously tracked vehicle at above-mentioned the deficiencies in the prior art.Owing to do not occur adopting the double power flow tracked vehicle transmission device of two groups of hydrostatic transmissions in the prior art as yet, thereby also lack the hydraulic efficiency pressure system that is used for this driving device.
According to the hydraulic efficiency pressure system that is used for the double power flow continuously tracked vehicle of the present utility model, it comprises volume adjustable hydraulic pump and constant displacement hydraulic motor, also comprise slippage pump and fuel tank, the working connection of this hydraulic pressure assembly is made up of filter, by pass valve, volume adjustable hydraulic pump, slippage pump, constant displacement hydraulic motor, cooling vessel and fuel tank.
Wherein, the volume adjustable hydraulic pump of this hydraulic pressure assembly can be the bidirectional hydraulic pump.
The constant displacement hydraulic motor of this hydraulic efficiency pressure system can be two-way hydraulic motor.
The two ends of constant displacement hydraulic motor are connected with three position four-way directional control valve, and the oil outlet of this three position four-way directional control valve connects cooling vessel and bypass by pass valve.
Volume adjustable hydraulic pump and slippage pump two ends are connected with the check valve and the high-pressure overflow valve of two groups of symmetries.
Description of drawings:
Fig. 1 is according to the hydraulic system principle figure that is used for the double power flow continuously tracked vehicle of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, preferred implementation of the present utility model is described.
Fig. 1 is according to the hydraulic system principle figure that is used for the double power flow continuously tracked vehicle of the present utility model.As shown in Figure 1, this hydraulic efficiency pressure system comprises bidirectional variable Hydraulic Pump 1 and two-way constant displacement hydraulic motor 6, bidirectional variable Hydraulic Pump 1 connects slippage pump 2 and fuel tank, and the working connection of this hydraulic efficiency pressure system is made up of filter 7, by pass valve 8, bidirectional variable Hydraulic Pump 1, slippage pump 2, two-way constant displacement hydraulic motor 6, cooling vessel 9 and fuel tank.
Wherein, the two ends of two-way constant displacement hydraulic motor 6 are connected with three position four-way directional control valve 5, and the oil outlet of this three position four-way directional control valve 5 connects cooling vessel 9 and bypass by pass valve 10, thereby is communicated with fuel tank, realize oil return.
In addition, bidirectional variable Hydraulic Pump 1 and slippage pump 2 two ends are connected with the check valve 3 and the high-pressure overflow valve 4 of two groups of symmetries, to realize commutation and speed governing.
Below in conjunction with Fig. 1, the working process of the double power flow continuously tracked vehicle that adopts this hydraulic efficiency pressure system is described.
During parking: the swashplate angle of bidirectional variable Hydraulic Pump 1 is 0 °, and two-way constant displacement hydraulic motor 6 is fuel feeding not, vehicle parking.
When at the uniform velocity walking: bidirectional variable Hydraulic Pump 1 and slippage pump 2 at the uniform velocity turn round, and high pressure oil flows to two-way constant displacement hydraulic motor 6 by the road and realizes power output.The motor low-pressure cavity links to each other with oil return pipe and realizes oil return, and part oil flows back to fuel tank through three position four-way directional control valve 5, realizes changing oil.
During speed change: the governing speed control stalk, the swashplate angle of bidirectional variable Hydraulic Pump 1 changes, capacity of pump changes, and the inclination angle is the speedup process when increasing.
When retreating: governing speed control stalk, the swash plate of bidirectional variable Hydraulic Pump 1 turn to the high and low pressure pipeline change in opposite side, the pipeline, and two-way constant displacement hydraulic motor 6 is realized counter-rotating.
This hydraulic system can be designed to the system that is made up of axial plunger pump and motor. Pump and motor can and connect by fluid pressure line Connect, also make integral body and in a housing, connect. The former has the advantage of structurally freely arranging, the latter has easy solution and exists The advantage of pressure lower seal.
Claims (1)
1, a kind of hydraulic efficiency pressure system that is used for the double power flow continuously tracked vehicle, it comprises bidirectional variable Hydraulic Pump (1) and two-way constant displacement hydraulic motor (6), bidirectional variable Hydraulic Pump (1) connects slippage pump (2) and fuel tank, it is characterized in that, the working connection of this hydraulic efficiency pressure system is in order by filter (7), by pass valve (8), bidirectional variable Hydraulic Pump (1), slippage pump (2), two-way constant displacement hydraulic motor (6), cooling vessel (9) and fuel tank are formed, wherein, the two ends of described two-way constant displacement hydraulic motor (6) are connected with three position four-way directional control valve (5), the oil outlet of this three position four-way directional control valve (5) connects cooling vessel (9) and bypass by pass valve (10), and described bidirectional variable Hydraulic Pump (1) and slippage pump (2) two ends are connected with the check valve (3) and the high-pressure overflow valve (4) of two groups of symmetries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920147674U CN201376494Y (en) | 2009-04-14 | 2009-04-14 | Hydraulic system for double power flow tracked vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920147674U CN201376494Y (en) | 2009-04-14 | 2009-04-14 | Hydraulic system for double power flow tracked vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201376494Y true CN201376494Y (en) | 2010-01-06 |
Family
ID=41516592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920147674U Expired - Fee Related CN201376494Y (en) | 2009-04-14 | 2009-04-14 | Hydraulic system for double power flow tracked vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201376494Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808915A (en) * | 2011-05-31 | 2012-12-05 | 北京理工大学 | Integrated comprehensive type hydrostatic driving stepless transmission mechanism for high-speed track-laying vehicle |
| CN104276040A (en) * | 2013-06-14 | 2015-01-14 | 丹佛斯动力系统公司 | Speed control system for a hydrostatic transmission |
| CN104890506A (en) * | 2015-06-26 | 2015-09-09 | 湖南农夫机电有限公司 | Travelling transmission mechanism for tracked vehicle |
| CN107696813A (en) * | 2017-11-10 | 2018-02-16 | 天津航天机电设备研究所 | The independent suspension device and closed type hydraulic system of Mecanum wheels |
-
2009
- 2009-04-14 CN CN200920147674U patent/CN201376494Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808915A (en) * | 2011-05-31 | 2012-12-05 | 北京理工大学 | Integrated comprehensive type hydrostatic driving stepless transmission mechanism for high-speed track-laying vehicle |
| CN102808915B (en) * | 2011-05-31 | 2015-01-28 | 北京理工大学 | Integrated comprehensive type hydrostatic driving stepless transmission mechanism for high-speed track-laying vehicle |
| CN104276040A (en) * | 2013-06-14 | 2015-01-14 | 丹佛斯动力系统公司 | Speed control system for a hydrostatic transmission |
| CN104890506A (en) * | 2015-06-26 | 2015-09-09 | 湖南农夫机电有限公司 | Travelling transmission mechanism for tracked vehicle |
| CN107696813A (en) * | 2017-11-10 | 2018-02-16 | 天津航天机电设备研究所 | The independent suspension device and closed type hydraulic system of Mecanum wheels |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20140414 |