CN201390253Y - Hydraulic transmission device of anti-explosion mining steel-wheel standard-rail locomotive - Google Patents
Hydraulic transmission device of anti-explosion mining steel-wheel standard-rail locomotive Download PDFInfo
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- CN201390253Y CN201390253Y CN200920093450U CN200920093450U CN201390253Y CN 201390253 Y CN201390253 Y CN 201390253Y CN 200920093450 U CN200920093450 U CN 200920093450U CN 200920093450 U CN200920093450 U CN 200920093450U CN 201390253 Y CN201390253 Y CN 201390253Y
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Abstract
The utility model discloses a hydraulic transmission device of an anti-explosion mining steel-wheel standard-rail locomotive, which comprises a volume speed control loop and an oil supplementing loop and is characterized in that the volume speed control loop comprises a bidirectional variable pump which is connected with an anti-explosion engine, a first selector valve, a third overflow valve and a fourth overflow valve are parallel connected with a bidirectional hydraulic motor, and the first selector valve is connected with a second overflow valve; and the oil supplementing loop comprises an oil supplementing pump which is connected with the anti-explosion engine, and an oil outlet of the oil supplementing pump is connected with a first overflow valve, connected with an oil outlet of the bidirectional variable pump through a first one-way valve and a second one-way valve, and is further connected with a second selector valve which is connected with the bidirectional variable pump. A cut-off valve is parallel connected at two ends of the bidirectional hydraulic motor of the volume speed control loop. Draining ports of the bidirectional variable pump, the first overflow valve, the second overflow valve and the bidirectional hydraulic motor are all connected with an oil tank through a cooler. The hydraulic transmission device of the anti-explosion mining steel-wheel standard-rail locomotive has the advantages of reasonable structure, reliable performance, long service life and the like.
Description
Technical field
The utility model relates to hydraulic actuator, specifically, is the general trailer car of a kind of mine anti-explosion steel wheel hydraulic actuator.
Background technology
The existing general trailer car of mine anti-explosion steel wheel hydraulic actuator comprises volume speed-modulating loop and feed circuit, realizes the two-way hydraulic motor speed setting by the variable capacity of pump that changes volume speed-modulating loop; Replenish fluid by feed circuit to volume speed-modulating loop and realize low-speed big startup, bi-directional drive, braking and infinite speed variation.The existing general trailer car of mine anti-explosion steel wheel hydraulic actuator weak point is because the two-way superhigh pressure drain charge loop of being made up of change-over valve, by pass valve is not set in volume speed-modulating loop, can not guarantee the safety of the forward and backward driving of two-way hydraulic motor; Because the controllable capacity pump of the direct inlet volume speed control loop of oil return of two-way hydraulic motor, its high temperature oil return is unfavorable to whole hydraulic efficiency pressure system, poor reliability, and service life is low.
Summary of the invention
The purpose of this utility model is, provides a kind of rational in infrastructure, dependable performance, the general trailer car of the mine anti-explosion steel wheel hydraulic actuator of long service life.
The purpose of this utility model is realized by following technical scheme: the general trailer car of a kind of mine anti-explosion steel wheel hydraulic actuator, it comprises volume speed-modulating loop and feed circuit, it is characterized in that: the structure of described volume speed-modulating loop is, comprise explosion-proof engine 1 bonded assembly two way variable displacement pump 2, two way variable displacement pump 2, first change-over valve 11, the 3rd by pass valve 12, the 4th by pass valve 13 are in parallel with two-way hydraulic motor 15, and first change-over valve 11 is connected with second by pass valve 10; The structure of described feed circuit is, comprise explosion-proof engine 1 bonded assembly slippage pump 3, the oil inlet of slippage pump 3 is connected with fuel tank 7, the oil outlet of slippage pump 3 is connected with first by pass valve 6, the oil outlet of slippage pump 3 is connected by 2 times oil outlets of first check valve 8 and two way variable displacement pump, the oil outlet of slippage pump 3 is connected with oil outlet on the two way variable displacement pump 2 by second check valve 9, and the oil outlet of slippage pump 3 is connected with second change-over valve 19, and second change-over valve 19 is connected with two way variable displacement pump 2.On described volume speed-modulating loop, be in series with second filter 16 and the 3rd check valve 17, at the two ends of series connection second filter 16 and the 3rd check valve 17 the 4th check valve 18 in parallel.At two-way hydraulic motor 10 two ends of described volume speed-modulating loop shutoff valve 11 in parallel.The relief port of described two way variable displacement pump 2, first by pass valve 6, second by pass valve 10 and two-way hydraulic motor 15 all is connected with fuel tank 7 by cooling vessel 5.
The general trailer car of mine anti-explosion steel wheel of the present utility model hydraulic actuator, because the 3rd, the 4th by pass valve and the two-way hydraulic motor of volume speed-modulating loop setting are in parallel, and first change-over valve and the second by pass valve connection structure, three, the 4th by pass valve can be set the top pressure of the forward and backward driving of two-way hydraulic motor respectively, first change-over valve and second by pass valve can make the high temperature oil return of two-way hydraulic motor pass through second by pass valve through the cooling vessel oil sump tank, guarantee the safety of the forward and backward driving of two-way hydraulic motor; Owing to be provided with first by pass valve in feed circuit, first by pass valve can be set the repairing top pressure; Owing to adopted volume speed-modulating loop and feed circuit, can realize that feed circuit is to the volume speed-modulating loop repairing, the feed circuit slippage pump is connected with second change-over valve, second change-over valve is connected with two way variable displacement pump, can realize low-speed big startup, bi-directional drive, braking and the infinite speed variation of HM Hydraulic Motor; Because at the two-way hydraulic motor two ends of volume speed-modulating loop shutoff valve in parallel, opening shutoff valve makes two-way hydraulic motor and shutoff valve constitute the loop, when two-way hydraulic motor is in the autobrake state, can the fluid of two-way hydraulic motor be discharged by opening shutoff valve, so that the external force go-cart; Because the relief port of two way variable displacement pump, first, second by pass valve and two-way hydraulic motor all is connected with fuel tank by cooling vessel, and the returning-oil temperature of overflow is lowered the temperature by cooling vessel, is beneficial to system's normal operation; Have advantages such as rational in infrastructure, dependable performance, long service life.
Description of drawings
Fig. 1 is the general trailer car of a mine anti-explosion steel wheel hydraulic actuator structural representation.
Among the figure: 1 explosion-proof engine, 2 two way variable displacement pumps, 3 slippage pumps, 4 first filters, 5 oil temperature regulators, 6 first by pass valves, 7 fuel tanks, 8 first check valves, 9 second check valves, 10 second by pass valves, 11 first change-over valves, 12 the 3rd by pass valves, 13 the 4th by pass valves, 14 shutoff valves, 15 two-way hydraulic motors, 16 second filters, 17 the 3rd check valves, 18 the 4th check valves, 19 second change-over valves.
The specific embodiment
Utilize drawings and Examples that the utility model is further described below.
With reference to Fig. 1, the general trailer car of a kind of mine anti-explosion steel wheel hydraulic actuator, it comprises volume speed-modulating loop and feed circuit, the structure of described volume speed-modulating loop is, comprise explosion-proof engine 1 bonded assembly two way variable displacement pump 2, two way variable displacement pump 2, first change-over valve 11, the 3rd by pass valve 12, the 4th by pass valve 13 and two-way hydraulic motor 15 are in parallel, and first change-over valve 11 is connected with second by pass valve 10; The structure of described feed circuit is, comprise explosion-proof engine 1 bonded assembly slippage pump 3, the oil inlet of slippage pump 3 is connected with fuel tank 7, the oil outlet of slippage pump 3 is connected with first by pass valve 6, the oil outlet of slippage pump 3 is connected by 2 times oil outlets of first check valve 8 and two way variable displacement pump, the oil outlet of slippage pump 3 is connected with oil outlet on the two way variable displacement pump 2 by second check valve 9, and the oil outlet of slippage pump 3 is connected with second change-over valve 19, and second change-over valve 19 is connected with two way variable displacement pump 2.On described volume speed-modulating loop, be in series with second filter 16 and the 3rd check valve 17, at the two ends of series connection second filter 16 and the 3rd check valve 17 the 4th check valve 18 in parallel.At two-way hydraulic motor 10 two ends of described volume speed-modulating loop shutoff valve 11 in parallel.The relief port of described two way variable displacement pump 2, first by pass valve 6, second by pass valve 10 and two-way hydraulic motor 15 all is connected with fuel tank 7 by cooling vessel 5.The hydraulic pressure components and parts that the utility model adopted are the commercially available prod.Wherein: two way variable displacement pump 2 adopts servo bidirectional variable plunger pump.The 3rd by pass valve 12 and the 4th by pass valve 13 adopt pilot-type relief valve.Second change-over valve 19 adopts the servo change-over valve of 3-position 4-way.First change-over valve 11 adopts the 3-position-3-way change-over valve that surges.
Claims (4)
1. the general trailer car of mine anti-explosion steel wheel hydraulic actuator, it comprises volume speed-modulating loop and feed circuit, it is characterized in that: the structure of described volume speed-modulating loop is, comprise explosion-proof engine (1) bonded assembly two way variable displacement pump (2), two way variable displacement pump (2), first change-over valve (11), the 3rd by pass valve (12), the 4th by pass valve (13) are in parallel with two-way hydraulic motor (15), and first change-over valve (11) is connected with second by pass valve (10); The structure of described feed circuit is, comprise explosion-proof engine (1) bonded assembly slippage pump (3), the oil inlet of slippage pump (3) is connected with fuel tank (7), the oil outlet of slippage pump (3) is connected with first by pass valve (6), the oil outlet of slippage pump (3) is connected with oil outlet under the two way variable displacement pump (2) by first check valve (8), the oil outlet of slippage pump (3) is gone up oil outlet by second check valve (9) and two way variable displacement pump (2) and is connected, the oil outlet of slippage pump (3) is connected with second change-over valve (19), and second change-over valve (19) is connected with two way variable displacement pump (2).
2. the general trailer car of mine anti-explosion steel wheel according to claim 1 hydraulic actuator, it is characterized in that: on described volume speed-modulating loop, be in series with second filter (16) and the 3rd check valve (17), at the two ends of series connection second filter (16) and the 3rd check valve (17) the 4th check valve (18) in parallel.
3. the general trailer car of mine anti-explosion steel wheel according to claim 1 hydraulic actuator is characterized in that: at two-way hydraulic motor (10) two ends of described volume speed-modulating loop shutoff valve (11) in parallel.
4. the general trailer car of mine anti-explosion steel wheel according to claim 1 hydraulic actuator is characterized in that: the relief port of described two way variable displacement pump (2), first by pass valve (6), second by pass valve (10) and two-way hydraulic motor (15) all is connected with fuel tank (7) by cooling vessel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920093450U CN201390253Y (en) | 2009-04-21 | 2009-04-21 | Hydraulic transmission device of anti-explosion mining steel-wheel standard-rail locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920093450U CN201390253Y (en) | 2009-04-21 | 2009-04-21 | Hydraulic transmission device of anti-explosion mining steel-wheel standard-rail locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201390253Y true CN201390253Y (en) | 2010-01-27 |
Family
ID=41597075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920093450U Expired - Fee Related CN201390253Y (en) | 2009-04-21 | 2009-04-21 | Hydraulic transmission device of anti-explosion mining steel-wheel standard-rail locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201390253Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192204A (en) * | 2011-03-29 | 2011-09-21 | 宋建安 | Hydraulic speed control system |
| CN102912822A (en) * | 2012-11-08 | 2013-02-06 | 三一重机有限公司 | Cooling system for excavator and excavator |
| CN106499697A (en) * | 2015-09-05 | 2017-03-15 | 熵零股份有限公司 | Fluid loop compensation system |
| CN109441707A (en) * | 2018-12-21 | 2019-03-08 | 上海电气液压气动有限公司 | From cooling piston motor |
-
2009
- 2009-04-21 CN CN200920093450U patent/CN201390253Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192204A (en) * | 2011-03-29 | 2011-09-21 | 宋建安 | Hydraulic speed control system |
| CN102192204B (en) * | 2011-03-29 | 2013-09-18 | 宋建安 | Hydraulic speed control system |
| CN102912822A (en) * | 2012-11-08 | 2013-02-06 | 三一重机有限公司 | Cooling system for excavator and excavator |
| CN102912822B (en) * | 2012-11-08 | 2015-09-16 | 三一重机有限公司 | A kind of excavator cooling system and excavator |
| CN106499697A (en) * | 2015-09-05 | 2017-03-15 | 熵零股份有限公司 | Fluid loop compensation system |
| CN109441707A (en) * | 2018-12-21 | 2019-03-08 | 上海电气液压气动有限公司 | From cooling piston motor |
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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: 20100127 Termination date: 20130421 |