CN205890975U - Two return circuits of emergent formula turn to device - Google Patents
Two return circuits of emergent formula turn to device Download PDFInfo
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- CN205890975U CN205890975U CN201620901824.0U CN201620901824U CN205890975U CN 205890975 U CN205890975 U CN 205890975U CN 201620901824 U CN201620901824 U CN 201620901824U CN 205890975 U CN205890975 U CN 205890975U
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- emergency
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- steering
- oil tank
- steering gear
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Abstract
The utility model provides a two return circuits of emergent formula turn to device, it includes: the steering gear, emergency valve, it sets up the oil inlet in the steering gear, emergency valve includes major loop or the emergent return circuit between emergency pump and the steering gear between optionally intercommunication steering pump and the steering gear, the connection is at the steering pump of major loop input, the connection is at the emergency pump of emergent return circuit input, the emergency pump sets up the output at vehicle transmission or transfer case, the oil tank, it is respectively to steering pump and emergency pump fuel feeding, the oil tank includes first input end and second input, and first input end and second input are connected to respectively on steering gear and the emergency valve, wherein, during the major loop operation, oil tank, emergency pump and emergency valve constitute the idle running return circuit. The utility model discloses realize at automatic start emergency steering device when engine or steering pump break down that the vehicle turns to, avoid because of turning to the incident emergence that leads to out of control.
Description
Technical field
This utility model belongs to engineering car and turns to field, particularly to a kind of emergency double loop transfer.
Background technology
, when steering pump lost efficacy or electromotor stops working suddenly, hydraulic power steering system can be because no for the vehicle being currently running
Power and lost efficacy, if emergent steering now cannot be realized security incident just easily occurs.(single bridge participates in turning ordinary highway heavy truck
To) power steering lost efficacy when, if turn more slow, mechanical linkage can carry out mechanical emergency steering reluctantly.But highway width
Body dumper is big because of weight on front axle, and steering drag is big compared with highway car a lot, then plus the hydraulic power steering system that assembled no
Method is realized turning to by machine driving, so being easy to when hydraulic system fault cause security incident because steering is out of control.
Utility model content
In order to solve the above problems, this utility model has designed and developed a kind of emergency double loop transfer, this device
Include the major loop of a steering and the emergency loop of an emergent steering, when the steering of engineering truck just operates
Chang Shi, the major loop in this device runs well；When the steering operating of engineering truck is broken down, emergent steering
Emergency loop automatic, realize Vehicular turn, it is to avoid because turn to out of control lead to security incident occur.
This utility model provides a kind of emergency double loop transfer, comprising:
Steering gear；
Steering pump；
Emergency pump, it is arranged on the outfan of vehicle gear box or transfer case, and described emergency pump is in described change speed gear box or institute
State operating under the driving of transfer case；
Emergency valve, it is arranged on the oil-in of described steering gear；Described emergency valve includes selectively communicating with described steering
Emergency loop between major loop between pump and described steering gear or described emergency pump and described steering gear；
Oil tank, it is to described steering pump and described emergent oil pump feed；Described oil tank includes first input end and the second input
Hold, and described first input end and described second input are respectively connecting in described steering gear and described emergency valve.
In this device, from the beginning of oil tank, sequentially pass through steering pump, emergency valve and steering gear, then returning to oil tank, constituting
The major loop of steering, from the beginning of oil tank, sequentially passes through emergency pump, emergency valve and steering gear, is then returning to oil tank, is constituting
The emergency loop of steering, and, emergency pump its be arranged on the outfan of vehicle gear box or transfer case, change speed gear box or transfer case
It is arranged on the outfan of automotive wheel, as long as so vehicle is in walking, emergency pump just can work.Steering system operating in vehicle
Normally, emergency valve opens major loop input and cuts out emergency loop input, then from oil tank, steering pump, emergency valve, steering gear,
Run well to the major loop of oil tank again, meanwhile, when vehicle to run, emergency valve is also at operating condition, then from oil tank, emergent
Pump, emergency valve, return oil tank idle running loop and are in operating condition；When the steering of vehicle breaks down, major loop cannot
Normal work, then emergency valve open emergency loop input close major loop input, then from the beginning of oil tank, through emergency pump,
Emergency valve and steering gear, then operate in the emergency loop returning to oil tank, control Vehicular turn it is ensured that vehicle goes out in steering
During existing fault, also enable course changing control it is ensured that vehicle safety.
Preferably, in described emergency double loop transfer, described emergency valve is additionally provided with a flow sensing
Device；
Described flow transducer is used for detecting the flow value of oil in described major loop.
When the flow value that flow transducer monitors oil in major loop is less than the flow threshold of setting, emergency valve is beaten automatically
Open emergency loop input, close major loop input so that emergency pump can first steering gear fuel feeding it is ensured that vehicle can be normal
Turn to.
Preferably, in described emergency double loop transfer, described oil tank includes the first oil tank and the connecting
Two oil tanks；
Described first oil tank is to described steering oil pump feed；The input of described first oil tank is connected with described steering gear；
Described second oil tank is to described emergent oil pump feed；The input of described second oil tank is connected with described emergency valve.
Preferably, in described emergency double loop transfer, described first oil tank and described second oil tank are
Three mouthfuls of oil tanks.
Adopt two three mouthfuls of oil tanks in this device, system circulation characteristic can be improved, reduce system oil temperature, two other oil
Tank passes through centre higher hydraulic fluid port series connection, makes two loops realize independent loops, that is, when a loop occurs pipeline leakage failure
Another loop still has enough hydraulic oil can maintain normal work.
Preferably, in described emergency double loop transfer, described steering gear includes main steering gear and secondary steering
Device；
Described main steering gear and the steering gear of described pair are connected in parallel.
Secondary steering gear is emergency double loop transfer provided auxiliary steering moment, i.e. secondary steering gear helps out.
Preferably, in described emergency double loop transfer, described emergency valve arranges a display lamp；
During described major loop connection, described display lamp is bright.
Preferably, it is characterised in that described emergency pump is radial plunger in described emergency double loop transfer
Pump.It is capable of double rotational directions work in the case of not changing oil inlet and outlet pipeline, that is, no matter vehicle advances or falls back, and this is met an urgent need
Pump all can normal work.
The beneficial effects of the utility model are:
1st, in described emergency double loop transfer, major loop including a steering and an emergent steering
Emergency loop, when the steering of engineering truck works well, major loop in this device runs well；Work as engineering truck
Steering operating when breaking down, the emergency loop automatic of emergent steering, realize Vehicular turn, it is to avoid because turn
Security incident is led to occur to out of control.
2nd, in described emergency double loop transfer, emergency pump is connected on change speed gear box or transfer case, is dragged by wheel
Dynamic, as long as vehicle is in walking, emergency pump just can work, and anxious steering also just can work, and at utmost improves vehicle
Security performance.
3rd, in described emergency double loop transfer, using two three mouthfuls of oil tanks, the circulation that can improve device is special
Property, reduce device oil temperature, two other oil tank passes through the series connection of centre higher hydraulic fluid port, make two loops realize independent loops, that is, when
One loop occurs another loop during pipeline leakage failure still to have enough hydraulic oil can maintain normal work.
Brief description
Fig. 1 is the structural representation of the emergency double loop transfer described in the one of embodiment of this utility model；
Fig. 2 is emergent described in a kind of transfer of emergency double loop described in the one of embodiment of this utility model
The schematic diagram of valve work.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
As shown in figure 1, a kind of emergency double loop transfer described in the one of embodiment of this utility model, its bag
Include:
Steering gear 1；
Steering pump 3；
Emergency pump 4, it is arranged on the outfan of vehicle gear box or transfer case, described emergency pump 4 in described change speed gear box or
Operate under the driving of described transfer case；
Emergency valve 2, it is arranged on the oil-in of described steering gear 1；Described emergency valve 2 includes selectively communicating with described turning
To the major loop between pump 3 and described steering gear 1 or the emergency loop between described emergency pump 4 and described steering gear 1；
Oil tank 5, it is to described steering pump 3 and described emergency pump 4 fuel feeding；Described oil tank 5 includes first input end and second
Input, and described first input end and described second input be respectively connecting on described steering gear 1 and described emergency valve 2.
Wherein, during major loop operating, described oil tank 5, described emergency pump 4 and described emergency valve 2 constitute idle running loop.
In such scheme, described oil tank 5 includes the first oil tank 500 and the second oil tank 510 connecting；
Described first oil tank 500 is to described steering pump 3 fuel feeding；The input of described first oil tank 500 and described steering gear 1
Connect；
Described second oil tank 510 is to described emergency pump 4 fuel feeding；The input of described second oil tank 510 and described emergency valve 2
Connect.
In such scheme, described first oil tank 500 and described second oil tank 510 are three mouthfuls of oil tanks.
In such scheme, described steering gear 1 includes main steering gear 100 and secondary steering gear 110；
Described main steering gear 100 and the steering gear 110 of described pair are connected in parallel.
In such scheme, described emergency valve 2 is additionally provided with a flow transducer；
Described flow transducer is used for detecting the flow value of oil in described major loop.
In such scheme, described emergency pump 4 is radial plunger pump.
In this device, when steering works well, major loop input opened by emergency valve 2 and to close emergency loop defeated
Enter end, steering pump 3 provides the oil in the first oil tank 500 to emergency valve 2, then provides to main steering gear 100 He through emergency valve 2
Secondary steering gear 110, steering controls Vehicular turn, meanwhile, as long as vehicle is in transport condition, vehicle wheel rotation, drives emergent
Valve 4 operates, from the second oil tank 510 and emergency valve 4, and the idle running loop in emergency valve 2, return the second oil tank 510
The operating of idle running loop, the major loop of idle running loop and steering is two independent loops, is mutually independent of each other.When turning of vehicle
During to system malfunctions, in emergency valve 2, flow transducer detects the flow value of oil in steering major loop less than setting
Flow threshold, then emergency valve 2 automatically open up emergency loop input and close major loop input, emergency pump 4 by second oil
Oil in tank 510 is provided to emergency valve 2, then provides to main steering gear 100 and secondary steering gear 110 through emergency valve 2, hydraulic oil from
Steering gear 1 returns to the first oil tank 500 and returns to the second oil tank 510 from the first oil tank 500 again, works well, really in emergency system loop
Protecting wheel steering system being capable of normal work.
Meanwhile, the first oil tank 500 and the second oil tank 510 are interconnected, and all using two three mouthfuls of oil tanks, can improve whole
Individual device cycle characteristics, reduces device oil temperature, and two other oil tank passes through centre higher hydraulic fluid port series connection, so that two loops is realized solely
Vertical circulation, when there is pipeline leakage failure when a loop, another loop still has enough hydraulic oil can maintain normal work
Make.
As shown in Fig. 2 a kind of emergency double loop transfer, this enforcement described in the one of embodiment of this utility model
On the basis of embodiment described in Fig. 1 for the example, a display lamp 200 is set in described emergency valve 2；During described major loop connection, institute
State display lamp 200 bright.As shown in Fig. 2 wherein p1 connects steering pump 3, p2 connects emergency pump 4；
When steering normal work, when major loop works well, when p1 normal work, master is opened in emergency valve 2 work
Loop input, p1 oil enters becomes owner of steering gear, p2 oil oil return tank, and display lamp 200 does not work；
When oily flow value in p1, < during flow threshold (can set), emergency loop input, p1 are opened in emergency valve 2 work
Oil enters to become owner of steering gear through throttling branch road, and p2 oil enters steering gear, now Dual-pump flow-converging by reversal valve, and display lamp 200 is bright,
Startup separator is reported to the police.
Although embodiment of the present utility model is disclosed as above, it is not restricted in description and embodiment
Listed utilization, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
It is easily achieved other modification, therefore under the general concept being limited without departing substantially from claim and equivalency range, this reality
It is not limited to specific details with new and shown here as the legend with description.
Claims (7)
1. a kind of emergency double loop transfer is it is characterised in that include:
Steering gear；
Steering pump；
Emergency pump, it is arranged on the outfan of vehicle gear box or transfer case, and described emergency pump is in described change speed gear box or described point
Operate under the driving of dynamic case；
Emergency valve, it is arranged on the oil-in of described steering gear；Described emergency valve include selectively communicating with described steering pump with
Emergency loop between major loop between described steering gear or described emergency pump and described steering gear；
Oil tank, it is to described steering pump and described emergent oil pump feed；Described oil tank includes first input end and the second input, and
Described first input end and described second input are respectively connecting in described steering gear and described emergency valve.
2. emergency double loop transfer as claimed in claim 1 is it is characterised in that be additionally provided with one on described emergency valve
Flow transducer；
Described flow transducer is used for detecting the flow value of oil in described major loop.
3. emergency double loop transfer as claimed in claim 2 is it is characterised in that described oil tank includes first connecting
Oil tank and the second oil tank；
Described first oil tank is to described steering oil pump feed；The input of described first oil tank is connected with described steering gear；
Described second oil tank is to described emergent oil pump feed；The input of described second oil tank is connected with described emergency valve.
4. emergency double loop transfer as claimed in claim 3 is it is characterised in that described first oil tank and described second
Oil tank is three mouthfuls of oil tanks.
5. emergency double loop transfer as claimed in claim 4 is it is characterised in that described steering gear includes main steering gear
With secondary steering gear；
Described main steering gear and the steering gear of described pair are connected in parallel.
6. emergency double loop transfer as claimed in claim 5 is it is characterised in that arrange an instruction on described emergency valve
Lamp；
When described emergency pump is connected with described steering gear, described display lamp is bright.
7. emergency double loop transfer as claimed in claim 1 is it is characterised in that described emergency pump is radial plunger
Pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620901824.0U CN205890975U (en) | 2016-08-18 | 2016-08-18 | Two return circuits of emergent formula turn to device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620901824.0U CN205890975U (en) | 2016-08-18 | 2016-08-18 | Two return circuits of emergent formula turn to device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205890975U true CN205890975U (en) | 2017-01-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620901824.0U Active CN205890975U (en) | 2016-08-18 | 2016-08-18 | Two return circuits of emergent formula turn to device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499376A (en) * | 2017-09-19 | 2017-12-22 | 中国重汽集团济南动力有限公司 | A kind of double loop steering |
| CN107554602A (en) * | 2017-08-17 | 2018-01-09 | 北京福田戴姆勒汽车有限公司 | Emergency double loop hydraulic booster steering, vehicle and method |
| CN107628103A (en) * | 2017-08-17 | 2018-01-26 | 北京福田戴姆勒汽车有限公司 | Method of testing, system and the vehicle of double loop hydraulic booster steering |
| CN109667800A (en) * | 2018-12-27 | 2019-04-23 | 潍柴动力股份有限公司 | Automobile hydraulic system and vehicle |
| CN111661147A (en) * | 2020-06-10 | 2020-09-15 | 南京金龙客车制造有限公司 | Emergency steering system based on two-shaft power take-off of gearbox |
| CN112960034A (en) * | 2021-02-08 | 2021-06-15 | 西安主函数智能科技有限公司 | Emergency steering system and method for an autonomous drive-by-wire vehicle |
| CN113942569A (en) * | 2021-11-30 | 2022-01-18 | 东风商用车有限公司 | Emergency power-assisted steering system and method |
| CN114312994A (en) * | 2022-01-10 | 2022-04-12 | 中国重汽集团济南动力有限公司 | Hydraulic steering power assisting device and system for multi-shaft vehicle |
| CN114802431A (en) * | 2022-05-30 | 2022-07-29 | 中汽北消(北京)应急装备科技有限公司 | Composite steering system of large transport vehicle |
| CN115285217A (en) * | 2022-09-06 | 2022-11-04 | 一汽解放汽车有限公司 | Emergency steering power device of commercial vehicle and commercial vehicle |
-
2016
- 2016-08-18 CN CN201620901824.0U patent/CN205890975U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554602A (en) * | 2017-08-17 | 2018-01-09 | 北京福田戴姆勒汽车有限公司 | Emergency double loop hydraulic booster steering, vehicle and method |
| CN107628103A (en) * | 2017-08-17 | 2018-01-26 | 北京福田戴姆勒汽车有限公司 | Method of testing, system and the vehicle of double loop hydraulic booster steering |
| CN107499376A (en) * | 2017-09-19 | 2017-12-22 | 中国重汽集团济南动力有限公司 | A kind of double loop steering |
| CN109667800A (en) * | 2018-12-27 | 2019-04-23 | 潍柴动力股份有限公司 | Automobile hydraulic system and vehicle |
| CN111661147A (en) * | 2020-06-10 | 2020-09-15 | 南京金龙客车制造有限公司 | Emergency steering system based on two-shaft power take-off of gearbox |
| CN112960034A (en) * | 2021-02-08 | 2021-06-15 | 西安主函数智能科技有限公司 | Emergency steering system and method for an autonomous drive-by-wire vehicle |
| CN113942569A (en) * | 2021-11-30 | 2022-01-18 | 东风商用车有限公司 | Emergency power-assisted steering system and method |
| CN114312994A (en) * | 2022-01-10 | 2022-04-12 | 中国重汽集团济南动力有限公司 | Hydraulic steering power assisting device and system for multi-shaft vehicle |
| CN114802431A (en) * | 2022-05-30 | 2022-07-29 | 中汽北消(北京)应急装备科技有限公司 | Composite steering system of large transport vehicle |
| CN115285217A (en) * | 2022-09-06 | 2022-11-04 | 一汽解放汽车有限公司 | Emergency steering power device of commercial vehicle and commercial vehicle |
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| GR01 | Patent grant |