CN104742964A - Emergent steering system for engineering machinery - Google Patents
Emergent steering system for engineering machinery Download PDFInfo
- Publication number
- CN104742964A CN104742964A CN201310733365.0A CN201310733365A CN104742964A CN 104742964 A CN104742964 A CN 104742964A CN 201310733365 A CN201310733365 A CN 201310733365A CN 104742964 A CN104742964 A CN 104742964A
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- Prior art keywords
- mouth
- steering
- himself
- state
- hydraulic
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/30—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention provides an emergent steering system for engineering machinery. The emergent steering system comprises an oil tank, a steering pump, a gear pump, a one-way valve, a full-hydraulic steering gear, a steering oil cylinder, a three-way valve and a radiator motor. When the steering pump is broken down, the emergent steering system can communicate the gear pump with the full-hydraulic steering engine through the three-way valve to directly drive equipment to an appointed maintenance point under the condition of not using a tractor without influencing the construction of other equipment, and the equipment also can construct for a short time; and as the gear pump is only used for supplying oil to the radiator motor under the normal condition, when the steering pump is broken down, the gear pump supplies the oil to the full-hydraulic steering engine, the mode dose not increase the equipment manufacturing cost and cause the unnecessary waste, and the operation is simple.
Description
Technical field
The invention belongs to engineering machinery field, be specifically related to the emergent steering swivel system of a kind of construction machinery and equipment.
Background technology
Emergent steering swivel system of the prior art is mainly considered when driving engine breaks down, a kind of emergency trouble shooting measures when need drag away, turns to, or make vehicle still have direction etc. when running out of steam and dragging away by jury pump as increase electric-motor pump does auxiliary meeting an urgent need.When not considering that steering pump breaks down, how to solve.
Summary of the invention
The present invention is intended to overcome prior art defect, there is provided a kind of construction machinery and equipment emergent steering swivel system, when steering pump goes wrong, by triple valve, gear type pump is communicated with all-hydraulic steering gear, equipment directly can be reached appointment maintenance point when not using trailer, do not affect the construction of other equipment, equipment self also can carry out the construction of short time; Because gear type pump is under normal circumstances only for radiator motor fuel feeding, when steering pump goes wrong by gear type pump to all-hydraulic steering gear for fuel feeding, this mode can not increase the manufacturing cost of equipment, can not cause unnecessary waste, operates also very simple.
For achieving the above object, technical scheme provided by the invention is:
The emergent steering swivel system of a kind of construction machinery and equipment, comprise fuel tank, steering pump, gear type pump, check valve, all-hydraulic steering gear, steering cylinder, triple valve and radiator motor, one end of described steering pump is connected with described fuel tank, the other end of described steering pump is connected with one end of described check valve, the other end of described check valve is connected with the oil inlet P mouth of described all-hydraulic steering gear, described steering cylinder comprises the first steering cylinder and the second steering cylinder, the rodless cavity of the first described steering cylinder is connected with the first actuator port L mouth of described all-hydraulic steering gear with the rod chamber of the second described steering cylinder, the rod chamber of the first described steering cylinder is connected with the second actuator port R mouth of described all-hydraulic steering gear with the rodless cavity of the second described steering cylinder, the oil return inlet T mouth of described all-hydraulic steering gear is connected with described fuel tank, one end of described gear type pump is connected with described fuel tank, the other end of described gear type pump is connected with the oil inlet P mouth of described triple valve, first actuator port A of described triple valve is connected with one end of described radiator motor, second actuator port B of described triple valve is connected with the oil inlet P mouth of described all-hydraulic steering gear, and the other two ends of described radiator motor are connected with described fuel tank.
Preferred as such scheme, described triple valve is two position three-way valve, and described two position three-way valve has the first state and the second state, and during the first state, the P mouth of himself is connected with the A mouth of himself; During the second state, the P mouth of himself is connected with the B mouth of himself.
Preferred as such scheme, described all-hydraulic steering gear has the first state, the second state and the third state, and during the first state, hydraulic oil is directly flowed into himself T mouth by the P mouth of himself; During the second state, hydraulic oil from himself P mouth flow into himself L mouth, again flow into himself R mouth, finally flow into himself T mouth again; During the third state, hydraulic oil from himself P mouth flow into himself R mouth, again flow into himself L mouth, finally flow into himself T mouth again.
Preferred as such scheme, also comprise by pass valve, described by pass valve comprises the first by pass valve and the second by pass valve, one end of the first described by pass valve is incorporated in the oil circuit that described steering pump is connected with described check valve, the other end of the first described by pass valve is connected with described fuel tank, one end of the second described by pass valve is incorporated in the oil circuit that described gear type pump is connected with the oil inlet P mouth of described triple valve, and the other end of the second described by pass valve is connected with described fuel tank.
Owing to adopting technique scheme, the present invention compared with prior art has the following advantages:
1, the emergent steering swivel system of a kind of construction machinery and equipment provided by the invention, when steering pump goes wrong, by triple valve, gear type pump is communicated with all-hydraulic steering gear, equipment directly can be reached appointment maintenance point when not using trailer, do not affect the construction of other equipment, equipment self also can carry out the construction of short time; Because gear type pump is under normal circumstances only for radiator motor fuel feeding, when steering pump goes wrong by gear type pump to all-hydraulic steering gear for fuel feeding, this mode can not increase the manufacturing cost of equipment, can not cause unnecessary waste, operates also very simple.
2, triple valve adopts two position three-way valve, has the first state and the second state, can realize freely commutating when steering pump goes wrong.
3, all-hydraulic steering gear has the first state, the second state and the third state, makes deflector to control to turn to multi-aspectly.
4, there is by pass valve, safety guard-safeguard effect is play to whole oil circuit.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the hydraulic schematic diagram of a kind of construction machinery and equipment provided by the invention with emergent steering swivel system;
Fig. 2 is fundamental diagram when hydraulic steering gear is in the first state in Fig. 1;
Fig. 3 is fundamental diagram when hydraulic steering gear is in the second state in Fig. 1;
Fig. 4 is fundamental diagram when hydraulic steering gear is in the third state in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing of the present invention, be clearly and completely described technical scheme of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the invention provides the emergent steering swivel system of a kind of construction machinery and equipment, comprise fuel tank 1, steering pump 2, gear type pump 3, check valve 4, all-hydraulic steering gear 5, steering cylinder 6, two position three-way valve 7 and radiator motor 8, one end of described steering pump 2 is connected by flexible pipe 9 with described fuel tank 1, the other end of described steering pump 2 is connected with one end of described check valve 4 by flexible pipe 9, the other end of described check valve 4 is connected by the oil inlet P mouth of flexible pipe 9 with described all-hydraulic steering gear 5, described steering cylinder 6 comprises the first steering cylinder 601 and the second steering cylinder 602, the rodless cavity of the first described steering cylinder 601 is connected with the first actuator port L mouth of described all-hydraulic steering gear 5 by flexible pipe 9 with the rod chamber of the second described steering cylinder 602, the rod chamber of the first described steering cylinder 601 is connected with the second actuator port R mouth of described all-hydraulic steering gear 5 by flexible pipe 9 with the rodless cavity of the second described steering cylinder 602, the oil return inlet T mouth of described all-hydraulic steering gear 5 is connected with described fuel tank 1, one end of described gear type pump 3 is connected with described fuel tank 1 by flexible pipe 9, the other end of described gear type pump 3 is connected by the oil inlet P mouth of flexible pipe 9 with described two position three-way valve 7, first actuator port A of described two position three-way valve 7 is connected by flexible pipe 9 one end with described radiator motor 8, second actuator port B of described two position three-way valve 7 is connected by the oil inlet P mouth of flexible pipe 9 with described all-hydraulic steering gear 5, and the other two ends of described radiator motor 8 are connected with described fuel tank, described two position three-way valve has the first state and the second state, and during the first state, the P mouth of himself is connected with the A mouth of himself, during the second state, the P mouth of himself is connected with the B mouth of himself, described all-hydraulic steering gear has the first state, the second state and the third state, and as shown in Figure 2, during the first state, hydraulic oil directly flows into himself T mouth by the P mouth of himself, as shown in Figure 3, during the second state, hydraulic oil from himself P mouth flow into himself L mouth, again flow into himself R mouth, finally flow into himself T mouth again, as shown in Figure 4, during the third state, hydraulic oil from himself P mouth flow into himself R mouth, again flow into himself L mouth, finally flow into himself T mouth again.
As preferred embodiment, also comprise by pass valve 10, described by pass valve 10 comprises the first by pass valve 101 and the second by pass valve 102, one end of the first described by pass valve 101 is incorporated in the oil circuit that described steering pump 2 is connected with described check valve 4, the other end of the first described by pass valve 101 is connected with described fuel tank 1, one end of the second described by pass valve 102 is incorporated in the oil circuit that described gear type pump 3 is connected with the oil inlet P mouth of described two position three-way valve 7, and the other end of the second described by pass valve 102 is connected with described fuel tank 1.
The invention provides a kind of construction machinery and equipment principle of work of emergent steering swivel system is: under normal circumstances, by steering pump by check valve and all-hydraulic steering gear to steering cylinder fuel feeding, gear type pump is radiator motor fuel feeding, now two position three-way valve is in the first state, the state adjusting hydro-steering pump can be needed according to actual steering, when hydro-steering pump is in the first state, hydraulic oil directly flows back to fuel tank after all-hydraulic steering gear; When hydro-steering pump is in the second state, hydraulic oil is steering cylinder fuel feeding after all-hydraulic steering gear, and wherein hydraulic oil makes the first steering cylinder push away, the second steering cylinder draws, thus realizes turning to; When hydro-steering pump is in the third state, hydraulic oil is steering cylinder fuel feeding after all-hydraulic steering gear, and wherein hydraulic oil makes the second steering cylinder push away, the first steering cylinder draws, thus realizes turning to.
When steering pump goes wrong, two position three-way valve is adjusted to the second state, now gear type pump starts as all-hydraulic steering gear fuel feeding, then adjusts the state of hydro-steering pump according to actual needs, thus realizes the emergent of equipment and turn to.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (4)
1. the emergent steering swivel system of construction machinery and equipment, it is characterized in that, comprise fuel tank, steering pump, gear type pump, check valve, all-hydraulic steering gear, steering cylinder, triple valve and radiator motor, one end of described steering pump is connected with described fuel tank, the other end of described steering pump is connected with one end of described check valve, the other end of described check valve is connected with the oil inlet P mouth of described all-hydraulic steering gear, described steering cylinder comprises the first steering cylinder and the second steering cylinder, the rodless cavity of the first described steering cylinder is connected with the first actuator port L mouth of described all-hydraulic steering gear with the rod chamber of the second described steering cylinder, the rod chamber of the first described steering cylinder is connected with the second actuator port R mouth of described all-hydraulic steering gear with the rodless cavity of the second described steering cylinder, the oil return inlet T mouth of described all-hydraulic steering gear is connected with described fuel tank, one end of described gear type pump is connected with described fuel tank, the other end of described gear type pump is connected with the oil inlet P mouth of described triple valve, first actuator port A of described triple valve is connected with one end of described radiator motor, second actuator port B of described triple valve is connected with the oil inlet P mouth of described all-hydraulic steering gear, and the other two ends of described radiator motor are connected with described fuel tank.
2. the emergent steering swivel system of construction machinery and equipment according to claim 1, it is characterized in that, described triple valve is two position three-way valve, and described two position three-way valve has the first state and the second state, during the first state, the P mouth of himself is connected with the A mouth of himself; During the second state, the P mouth of himself is connected with the B mouth of himself.
3. the emergent steering swivel system of construction machinery and equipment according to claim 1 and 2, it is characterized in that, described all-hydraulic steering gear has the first state, the second state and the third state, and during the first state, hydraulic oil directly flows into himself T mouth by the P mouth of himself; During the second state, hydraulic oil from himself P mouth flow into himself L mouth, again flow into himself R mouth, finally flow into himself T mouth again; During the third state, hydraulic oil from himself P mouth flow into himself R mouth, again flow into himself L mouth, finally flow into himself T mouth again.
4. the emergent steering swivel system of construction machinery and equipment according to claim 1 and 2, it is characterized in that, also comprise by pass valve, described by pass valve comprises the first by pass valve and the second by pass valve, one end of the first described by pass valve is incorporated in the oil circuit that described steering pump is connected with described check valve, the other end of the first described by pass valve is connected with described fuel tank, one end of the second described by pass valve is incorporated in the oil circuit that described gear type pump is connected with the oil inlet P mouth of described triple valve, and the other end of the second described by pass valve is connected with described fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733365.0A CN104742964A (en) | 2013-12-26 | 2013-12-26 | Emergent steering system for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733365.0A CN104742964A (en) | 2013-12-26 | 2013-12-26 | Emergent steering system for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104742964A true CN104742964A (en) | 2015-07-01 |
Family
ID=53583394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310733365.0A Pending CN104742964A (en) | 2013-12-26 | 2013-12-26 | Emergent steering system for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104742964A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494500A (en) * | 2016-10-21 | 2017-03-15 | 贵州詹阳动力重工有限公司 | A kind of emergent steering, engineering machinery |
| CN109667800A (en) * | 2018-12-27 | 2019-04-23 | 潍柴动力股份有限公司 | Automobile hydraulic system and vehicle |
| CN111776066A (en) * | 2020-07-30 | 2020-10-16 | 三一汽车起重机械有限公司 | Energy storage emergency steering module, hydraulic steering system and control method thereof |
| CN112896306A (en) * | 2021-03-26 | 2021-06-04 | 广西柳工机械股份有限公司 | Steering hydraulic system and loader |
| WO2023179312A1 (en) * | 2022-03-23 | 2023-09-28 | 三一重型装备有限公司 | Steering system and engineering machine |
| RU2817072C1 (en) * | 2022-03-23 | 2024-04-09 | Сани Хэви Эквипмент Ко., Лтд. | Steering system and construction equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3882678A (en) * | 1973-06-08 | 1975-05-13 | Zahnradfabrik Friedrichshafen | Automatic connecting valves for reserve pumps |
| CN201357777Y (en) * | 2009-02-24 | 2009-12-09 | 宝山钢铁股份有限公司 | Two-way hydraulic system of transporting rack car |
| CN201613932U (en) * | 2009-12-25 | 2010-10-27 | 鼎盛天工工程机械股份有限公司 | Electric motor pump auxiliary emergency steering hydraulic device for hydraulic steering of engineering vehicles |
| CN201646846U (en) * | 2010-05-13 | 2010-11-24 | 安徽合力股份有限公司 | Hydraulic steering system for forward fork lift |
| CN202294268U (en) * | 2011-10-26 | 2012-07-04 | 十堰市驰田汽车有限公司 | Hydraulic retarder and safe power steering device |
| KR101298401B1 (en) * | 2006-12-22 | 2013-08-20 | 두산인프라코어 주식회사 | Self-diagnostic emergency steering device for wheel loader |
| CN103264725A (en) * | 2013-05-28 | 2013-08-28 | 安徽合力股份有限公司 | Safe steering system of heavy forklift |
| CN203623771U (en) * | 2013-12-26 | 2014-06-04 | 湖北万山宏业汽车零部件有限公司 | Emergency steering system used for engineering machinery |
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2013
- 2013-12-26 CN CN201310733365.0A patent/CN104742964A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3882678A (en) * | 1973-06-08 | 1975-05-13 | Zahnradfabrik Friedrichshafen | Automatic connecting valves for reserve pumps |
| KR101298401B1 (en) * | 2006-12-22 | 2013-08-20 | 두산인프라코어 주식회사 | Self-diagnostic emergency steering device for wheel loader |
| CN201357777Y (en) * | 2009-02-24 | 2009-12-09 | 宝山钢铁股份有限公司 | Two-way hydraulic system of transporting rack car |
| CN201613932U (en) * | 2009-12-25 | 2010-10-27 | 鼎盛天工工程机械股份有限公司 | Electric motor pump auxiliary emergency steering hydraulic device for hydraulic steering of engineering vehicles |
| CN201646846U (en) * | 2010-05-13 | 2010-11-24 | 安徽合力股份有限公司 | Hydraulic steering system for forward fork lift |
| CN202294268U (en) * | 2011-10-26 | 2012-07-04 | 十堰市驰田汽车有限公司 | Hydraulic retarder and safe power steering device |
| CN103264725A (en) * | 2013-05-28 | 2013-08-28 | 安徽合力股份有限公司 | Safe steering system of heavy forklift |
| CN203623771U (en) * | 2013-12-26 | 2014-06-04 | 湖北万山宏业汽车零部件有限公司 | Emergency steering system used for engineering machinery |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494500A (en) * | 2016-10-21 | 2017-03-15 | 贵州詹阳动力重工有限公司 | A kind of emergent steering, engineering machinery |
| CN106494500B (en) * | 2016-10-21 | 2018-10-26 | 贵州詹阳动力重工有限公司 | A kind of emergent steering, engineering machinery |
| CN109667800A (en) * | 2018-12-27 | 2019-04-23 | 潍柴动力股份有限公司 | Automobile hydraulic system and vehicle |
| CN111776066A (en) * | 2020-07-30 | 2020-10-16 | 三一汽车起重机械有限公司 | Energy storage emergency steering module, hydraulic steering system and control method thereof |
| CN112896306A (en) * | 2021-03-26 | 2021-06-04 | 广西柳工机械股份有限公司 | Steering hydraulic system and loader |
| WO2023179312A1 (en) * | 2022-03-23 | 2023-09-28 | 三一重型装备有限公司 | Steering system and engineering machine |
| RU2817072C1 (en) * | 2022-03-23 | 2024-04-09 | Сани Хэви Эквипмент Ко., Лтд. | Steering system and construction equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150701 |