CN202783346U - Hydraulic system controlling vehicles to achieve bidirectional traveling - Google Patents
Hydraulic system controlling vehicles to achieve bidirectional traveling Download PDFInfo
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- CN202783346U CN202783346U CN 201220395883 CN201220395883U CN202783346U CN 202783346 U CN202783346 U CN 202783346U CN 201220395883 CN201220395883 CN 201220395883 CN 201220395883 U CN201220395883 U CN 201220395883U CN 202783346 U CN202783346 U CN 202783346U
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- over valve
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- deflector
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Abstract
The utility model provides a hydraulic system controlling vehicles to achieve bidirectional traveling, belongs to the technical field of engineering vehicles, and provides the hydraulic system controlling the vehicles to achieve bidirectional traveling. The hydraulic system overcomes defects in the prior art, and is low in manufacturing cost and capable of controlling the vehicles to achieve bidirectional traveling. The hydraulic system comprises a steering gear, an oil pump, an oil tan and a hydraulic oil cylinder. The steering gear controls operation of the hydraulic system by means of a steering wheel arranged on the steering gear, the oil pump and the oil tank are respectively communicated with a port P and a port O in the steering gear through corresponding oil pipes, a port A and a port B in the steering gear are respectively communicated with a port P1 and a port P2 in the hydraulic oil cylinder through a hydraulic manifold block, the port P1 and the port P2 are respectively located at two sides of a hydraulic oil cylinder piston, and a piston rod of the hydraulic oil cylinder is connected with a steering mechanism of a vehicle. The hydraulic system is mainly used for an engineering vehicle in a roadway.
Description
Technical field
The utility model control vehicle is realized the hydraulic efficiency pressure system of two way, belongs to the engineering truck technical field.
Background technology
At present in the production in China large and medium-sized mine colliery, various operations under the mine are subjected to the restriction in tunnel so that coal excavation apparatus maintenance, the maintenance a large amount of in underground transportation work and down-hole of the vehicle in the tunnel, install, an outstanding problem that becomes coal production enterprise such as mobile.
Like product is divided into two classes substantially on the market, and two way mechanism is generally with gear case and realizes that forward and backward conversion turns in the first kind, and complex structure needs to drop into casting molds before the manufacturing, part blank and anchor clamps and processing accessory, and cost is high.
Another kind of is to adopt the hydraulic torque converter transmission, and in the forward and backward position of vehicle the maneuvering system that one cover is driven is housed respectively, and namely two cover riding manipulation mechanisms realize the bidirectional driving of not reversing end for end, and cost is higher, and can not realize self-unloading function.
The utility model content
The utility model control vehicle is realized the hydraulic efficiency pressure system of two way, has overcome the deficiency that prior art exists, and a kind of low cost of manufacture is provided, and can control the hydraulic efficiency pressure system that vehicle is realized the control vehicle realization two way of two way.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: the control vehicle is realized the hydraulic efficiency pressure system of two way, comprise deflector, oil pump, fuel tank and hydraulic ram, deflector is controlled its action by bearing circle disposed thereon, oil pump and fuel tank communicate by corresponding oil pipe respectively with port P and port O in the deflector, respectively with the port P1 of hydraulic ram with port P2 is corresponding communicates, this port P1 and port P2 lay respectively at the both sides of hydraulic cylinder piston by hydraulic manifold block for the port A of deflector and port B;
The structure of hydraulic manifold block is: the first change-over valve and the second change-over valve are the two-position four-way hydraulic valve, the port O of the first change-over valve and the second change-over valve is normally closed, the port P of the first change-over valve communicates by the first oil guide pipe with the port A of deflector, the port P of the second change-over valve communicates by the second oil guide pipe with the port B of deflector, the port A of the first change-over valve communicates by the 3rd oil guide pipe with the port P1 of hydraulic ram, the port A of the second change-over valve communicates by the 4th oil guide pipe with the port P2 of hydraulic ram, the port B of the first change-over valve communicates by the 4th oil guide pipe with the port P2 of hydraulic ram, the second change-over valve communicates by the 3rd oil guide pipe with the port P1 of hydraulic ram, and the spool of handle and the first change-over valve and the second change-over valve all links together and controls the first change-over valve and the second change-over valve realization synchronous communicating.
The piston rod of described hydraulic ram is connected with the steering hardware of vehicle.
The utility model compared with prior art has following beneficial effect.
1, the hydraulic manifold block in the utility model adopts two change-over valves interconnected, i.e. the first change-over valve and the second change-over valve, one of them oil-feed, another oil return, avoid the return opening of two change-over valves to bear high pressure oil, prolonged the service life of hydraulic manifold block, reduced the frequency of maintenance of vehicle.
2, in the utility model deflector is arranged on below the bearing circle, oily flow path direction by rotation bearing circle control deflector, the first change-over valve and the second change-over valve that are arranged in the hydraulic manifold block move by controlling spool with handle, thereby the oily flow path direction in the control hydraulic ram, make the operating mode of vehicle bearing circle when reverse driving constant, simple in structure, reliability is strong, driver's operation is simple, convenient, low cost of manufacture.
3, hydraulic manifold block compact conformation in the utility model, it is little to take up room, and is one with front and back operator's compartment and two, and the operator's compartment after the merging is arranged on an end of vehicle, can not have influence on the installation that self-unloading function arranges, thereby the utility model can be equipped with self-unloading function.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the hydraulic manifold block oil circuit figure during forward travel in the utility model.
Fig. 3 is the hydraulic manifold block oil circuit figure during reverse driving in the utility model.
Among the figure, 1 is that deflector, 2 is that oil pump, 3 is that fuel tank, 4 is that hydraulic ram, 5 is that hydraulic manifold block, 6 is that the first change-over valve, 7 is that the first oil guide pipe, 8 is that the second oil guide pipe, 9 is that the 3rd oil guide pipe, 10 is that the 4th oil guide pipe, 11 is that handle, 12 is the second change-over valve.
The specific embodiment
As shown in Figure 1-Figure 3, the utility model control vehicle is realized the hydraulic efficiency pressure system of two way, comprise deflector 1, oil pump 2, fuel tank 3 and hydraulic ram 4, deflector 1 is controlled its action by bearing circle disposed thereon, oil pump 2 and fuel tank 3 communicate by corresponding oil pipe respectively with port P and port O in the deflector 1, respectively with the port P1 of hydraulic ram 4 with port P2 is corresponding communicates, this port P1 and port P2 lay respectively at the both sides of hydraulic ram 4 pistons by hydraulic manifold block 5 for the port A of deflector 1 and port B;
The structure of hydraulic manifold block 5 is: the first change-over valve 6 and the second change-over valve 12 are the two-position four-way hydraulic valve, the port O of the first change-over valve 6 and the second change-over valve 12 is normally closed, the port P of the first change-over valve 6 communicates by the first oil guide pipe 7 with the port A of deflector 1, the port P of the second change-over valve 12 communicates by the second oil guide pipe 8 with the port B of deflector 1, the port A of the first change-over valve 6 communicates by the 3rd oil guide pipe 9 with the port P1 of hydraulic ram 4, the port A of the second change-over valve 12 communicates by the 4th oil guide pipe 10 with the port P2 of hydraulic ram 4, the port B of the first change-over valve 6 communicates by the 4th oil guide pipe 10 with the port P2 of hydraulic ram 4, the second change-over valve 12 communicates by the 3rd oil guide pipe 9 with the port P1 of hydraulic ram 4, and the spool of handle 11 and the first change-over valve 6 and the second change-over valve 12 all links together and controls the first change-over valve 6 and the second change-over valve 12 realization synchronous communicatings.
The piston rod of described hydraulic ram 4 is connected with the steering hardware of vehicle.
The all-hydraulic type of BZZ-E is adopted in deflector 1 in the utility model, a kind of Full hydraulic steering gear that it is comprised of servo valve and a pair of cycloidal pinion engaged pair, it is laborsaving that it has manoeuvrable, reliable operation, fault is few, simple and compact for structure, mounting arrangements is convenient, and when engine off, can realize the characteristics such as manual steering, spool wherein, valve pocket and valve body consist of follow-up rotary valve, start to control the effect of liquefaction flow path direction, rotor and stator consist of cycloidal pinion engaged pair, play measure motor when power steering, are directly proportional with the corner of bearing circle to guarantee the oil mass that flows to oil cylinder, its manual fuel pump effect when manual steering, the effect of its transmitting torque of universal driving shaft.
On supporting vehicle of the present utility model, the front and back position that is positioned at bearing circle is provided with the driver's seat, no matter chaufeur forward travel or reverse driving, all can guarantee driver's seat forward, make the chaufeur convenient driving, improve road speed, guarantee traffic safety.
Dispose vehicle of the present utility model because operator's compartment is positioned at an end of vehicle, can self-unloading device be set in the bottom side, compartment, make vehicle have self-unloading function, and hill climbing ability is strong, does not need tune in the transportation engineering operation of, narrow opening low in the down-hole, travels freely, be specially adapted to various working condition operations, be the desirable indispensable vehicle of colliery modernization safety in production, solved general vehicle and can't reverse end for end in the down-hole, the problem that can't pass through.
Working process of the present utility model: vehicle is in the tunnel during forward travel, the handle 11 of hydraulic manifold block 5 is removed to the I position, the left position work of the first change-over valve 6 and the second change-over valve 12, chaufeur is sitting on the forward driver's seat, be provided with bearing circle in the deflector 1, flow and the direction of rotation bearing circle control hydraulic oil.
When vehicle is directly walked, need not to rotate bearing circle, deflector 1 oil circuit is in normally off, all do not have fluid to flow through in hydraulic manifold block 5 and the hydraulic ram 4, thereby vehicle is directly walked.
If during the clickwise bearing circle, enter the left position of deflector 1 through the port P of deflector 1 from oil pump 2 high pressure oil out this moment, port A from deflector 1 flows out again, enter the first change-over valve 6 through the first oil guide pipe 7 from the port P of the first change-over valve 6, port A from the first change-over valve 6 flows out again, because the port O of the second change-over valve 12 is normally closed, so can only enter from the port P1 of hydraulic ram 4 hydraulic ram 4 with the fluid in the 3rd oil guide pipe 9 that the port A of the first change-over valve 6 communicates, promote the piston rod movement of hydraulic ram 4, realization bends to right, the low pressure fluid of the port P2 side of hydraulic ram 4 flows out through the port P2 of hydraulic ram 4, because the port O of the first change-over valve 6 is normally closed, so can only enter from the port A of the second change-over valve 12 the second change-over valve 12 with the fluid in the 4th oil guide pipe 10 that the port P2 of hydraulic ram 4 communicates, port P from the second change-over valve 12 flows out again, enter deflector 1 through the second oil guide pipe 8 from the port B of deflector 1, port O from deflector 1 flow back into the fuel tank 3 at last, finishes oil circulation.
If during the left-hand revolution bearing circle, enter the right position of deflector 1 through the port P of deflector 1 from oil pump 2 high pressure oil out this moment, port B from deflector 1 flows out again, enter the second change-over valve 12 through the second oil guide pipe 8 from the port P of the second change-over valve 12, port A from the second change-over valve 12 flows out again, because the port O of the first change-over valve 6 is normally closed, so can only enter from the port P2 of hydraulic ram 4 hydraulic ram 4 with the fluid in the 4th oil guide pipe 10 that the port A of the second change-over valve 12 communicates, promote the piston rod movement of hydraulic ram 4, realize turning left, and the low pressure fluid of the port P1 side of hydraulic ram 4 flows out through the port P1 of hydraulic ram 4, because the port O of the second change-over valve 12 is normally closed, so can only enter from the port A of the first change-over valve 6 the first change-over valve 6 with the fluid in the 3rd oil guide pipe 9 that the port P1 of hydraulic ram 4 communicates, port P from the first change-over valve 6 flows out again, enter deflector 1 through the first oil guide pipe 7 from the port A of deflector 1, port O from deflector 1 flow back into the fuel tank 3 at last, finishes oil circulation.
Vehicle is in the tunnel during reverse driving, the handle 11 of hydraulic manifold block 5 is removed to the II position, the right position work of the first change-over valve 6 and the second change-over valve 12, and chaufeur is sitting on the reverse driver's seat, be provided with bearing circle in the deflector 1, flow and the direction of rotation bearing circle control hydraulic oil.
When vehicle is directly walked, need not to rotate bearing circle, the oil circuit of deflector 1 is in the meta normally off, all do not have fluid to flow through in hydraulic manifold block 5 and the hydraulic ram 4, thereby vehicle is directly walked.
If during the clickwise bearing circle, enter the left position of deflector 1 through the port P of deflector 1 from oil pump 2 high pressure oil out this moment, port A from deflector 1 flows out again, enter the first change-over valve 6 through the first oil guide pipe 7 from the port P of the first change-over valve 6, port B from the first change-over valve 6 flows out again, because the port O of the second change-over valve 12 is normally closed, so can only enter from the port P2 of hydraulic ram 4 hydraulic ram 4 with the fluid in the 4th oil guide pipe 10 that the port B of the first change-over valve 6 communicates, promote the piston rod movement of hydraulic ram 4, realization bends to right, the low pressure fluid of the port P1 side of hydraulic ram 4 flows out through the port P1 of hydraulic ram 4, because the port O of the first change-over valve 6 is normally closed, so can only enter from the port B of the second change-over valve 12 the second change-over valve 12 with the fluid in the 3rd oil guide pipe 9 that the port P1 of hydraulic ram 4 communicates, port P from the second change-over valve 12 flows out again, enter deflector 1 through the second oil guide pipe 8 from the port B of deflector 1, port O from deflector 1 flow back into the fuel tank 3 at last, finishes oil circulation.
If during the left-hand revolution bearing circle, enter the right position of deflector 1 through the port P of deflector 1 from oil pump 2 high pressure oil out this moment, port B from deflector 1 flows out again, enter the second change-over valve 12 through the second oil guide pipe 8 from the port P of the second change-over valve 12, port B from the second change-over valve 12 flows out again, because the port O of the first change-over valve 6 is normally closed, so can only enter from the port P1 of hydraulic ram 4 hydraulic ram 4 with the fluid in the 3rd oil guide pipe 9 that the port B of the second change-over valve 12 communicates, promote the piston rod movement of hydraulic ram 4, realize turning left, and the low pressure fluid of the port P2 side of hydraulic ram 4 flows out through the port P2 of hydraulic ram 4, because the port O of the second change-over valve 12 is normally closed, so can only enter from the port B of the first change-over valve 6 the first change-over valve 6 with the fluid in the 4th oil guide pipe 10 that the port P1 of hydraulic ram 4 communicates, port P from the first change-over valve 6 flows out again, enter deflector 1 through the first oil guide pipe 7 from the port A of deflector 1, port O from deflector 1 flow back into the fuel tank 3 at last, finishes oil circulation.
The driving device of the utility model and a kind of bi-directional vehicle supports the use, and this driving device comprises driving engine and change speed gear box, and the output shaft of driving engine is connected with the input shaft of pinion case, and the output shaft of pinion case is connected with the input shaft of change speed gear box;
The structure of pinion case is: input shaft and output shaft respectively correspondence are inserted into pinion case both sides, the end that input shaft is positioned at the pinion case is set with the first gear, output shaft is positioned on the inserting paragraph of pinion case and is movably installed with the 5th gear, be provided with external tooth and internal tooth on the 5th gear, the first transmission shaft and second driving shaft are set in parallel in the pinion case, be sleeved on the second gear and the engagement of the first gear on the first transmission shaft, the 3rd gear and the 4th gear all are sleeved on the second driving shaft, the 3rd gear and the engagement of the second gear;
Also be provided with in the pinion case and can stir the driving lever that the 5th gear moves;
The external tooth of the 5th gear and the engagement of the 4th gear, or be internal tooth and the engagement of the first gear of the 5th gear.
The above has done detailed description to embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skills possess, can also under the prerequisite that does not break away from the utility model aim, make various variations.
Claims (2)
1. the control vehicle is realized the hydraulic efficiency pressure system of two way, comprise deflector (1), oil pump (2), fuel tank (3) and hydraulic ram (4), deflector (1) is controlled its action by bearing circle disposed thereon, oil pump (2) and fuel tank (3) communicate by corresponding oil pipe respectively with port P and port O in the deflector (1), it is characterized in that, respectively with the port P1 of hydraulic ram (4) with port P2 is corresponding communicates, this port P1 and port P2 lay respectively at the both sides of hydraulic ram (4) piston by hydraulic manifold block (5) for the port A of deflector (1) and port B;
The structure of hydraulic manifold block (5) is: the first change-over valve (6) and the second change-over valve (12) are the two-position four-way hydraulic valve, the port O of the first change-over valve (6) and the second change-over valve (12) is normally closed, the port P of the first change-over valve (6) communicates by the first oil guide pipe (7) with the port A of deflector (1), the port P of the second change-over valve (12) communicates by the second oil guide pipe (8) with the port B of deflector (1), the port A of the first change-over valve (6) communicates by the 3rd oil guide pipe (9) with the port P1 of hydraulic ram (4), the port A of the second change-over valve (12) communicates by the 4th oil guide pipe (10) with the port P2 of hydraulic ram (4), the port B of the first change-over valve (6) communicates by the 4th oil guide pipe (10) with the port P2 of hydraulic ram (4), the second change-over valve (12) communicates by the 3rd oil guide pipe (9) with the port P1 of hydraulic ram (4), and the spool of handle (11) and the first change-over valve (6) and the second change-over valve (12) all links together and controls the first change-over valve (6) and the second change-over valve (12) realization synchronous communicating.
2. control vehicle according to claim 1 is realized the hydraulic efficiency pressure system of two way, it is characterized in that the piston rod of described hydraulic ram (4) is connected with the steering hardware of vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395883 CN202783346U (en) | 2012-08-11 | 2012-08-11 | Hydraulic system controlling vehicles to achieve bidirectional traveling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395883 CN202783346U (en) | 2012-08-11 | 2012-08-11 | Hydraulic system controlling vehicles to achieve bidirectional traveling |
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| Publication Number | Publication Date |
|---|---|
| CN202783346U true CN202783346U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220395883 Withdrawn - After Issue CN202783346U (en) | 2012-08-11 | 2012-08-11 | Hydraulic system controlling vehicles to achieve bidirectional traveling |
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| CN (1) | CN202783346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785694A (en) * | 2012-08-11 | 2012-11-21 | 山西强力矿用设备制造有限公司 | Hydraulic system for controlling vehicle to realize two-way travelling |
-
2012
- 2012-08-11 CN CN 201220395883 patent/CN202783346U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785694A (en) * | 2012-08-11 | 2012-11-21 | 山西强力矿用设备制造有限公司 | Hydraulic system for controlling vehicle to realize two-way travelling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20140625 |
|
| RGAV | Abandon patent right to avoid regrant |