CN207790833U - Commercial car and its steering - Google Patents
Commercial car and its steering Download PDFInfo
- Publication number
- CN207790833U CN207790833U CN201820057608.1U CN201820057608U CN207790833U CN 207790833 U CN207790833 U CN 207790833U CN 201820057608 U CN201820057608 U CN 201820057608U CN 207790833 U CN207790833 U CN 207790833U
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- main
- steering
- steering gear
- oil tank
- emergency
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- 238000012546 transfer Methods 0.000 claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 description 65
- 238000004891 communication Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012208 gear oil Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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- Power Steering Mechanism (AREA)
Abstract
The utility model provides a kind of commercial car and its steering, and steering includes main transfer, emergency power unit, reversal valve and monitoring unit, wherein main transfer includes steering gear and main power units；Emergency power unit, for providing power to steering gear；Reversal valve is arranged between main power units and steering gear, and reversal valve is also connected with emergency power unit, and makes steering gear is selectively formed with main power units or emergency power unit to connect；Monitoring unit is arranged on the connecting path of main transfer, and the working condition for monitoring main power units, to control reversal valve commutation.When main transfer fails, which can switch emergency power unit work in time, and emergency power unit is made to provide power for steering gear, to drive commercial car to turn to, to ensure that commercial car when main transfer fails, can still provide for steering operation, it is ensured that the safety of vehicle traveling.
Description
Technical field
The utility model is related to Vehicular turn technical field, more particularly to a kind of commercial car and its steering.
Background technology
To adapt to the growth of highway transport power, the production quantity of highway transport vehicle increases day by day.With security legislation into
One step is strengthened and perfect, and awareness of safety of people when using vehicle is also increasingly stronger.
Currently, the steering of existing vehicle generally uses power steering gear, this power steering gear is in machinery
It is hydraulic pressure that the most common form of such power steering apparatus that a set of power steering apparatus is formed is added on the basis of steering
Servo steering device, specifically, the hydraulic pressure assisted steering device includes power assistance pump for steering and connect with vehicle bridge steering mechanism
Steering actuation cylinder.
At nominal conditions, it is to pass through mechanical steering by driver to realize that the energy needed for Vehicular turn only has sub-fraction
What system provided, and most of provided by hydraulic pressure assisted steering device by engine.That is, in steering procedure, engine
Power assistance pump for steering operating is driven, and then pressure oil is provided to steering actuation cylinder, steering actuation cylinder is made to act, is taken turns to assist realizing
The steering of tire.
If however, vehicle normally travel state meet with accident when, such as vehicle dynamic failure, engine shutdown or
In the case of flame-out, hydraulic pressure assisted steering device will run out of steam source, this can bring larger difficulty to Driver Steering Attention, and
And it easily causes the accident.Vehicle work long hours or the adverse circumstances such as vehicle and field in when, this risk will be further
Amplification.
Utility model content
Utility model aims to solve the vehicles of the prior art in dynamic failure or the urgent feelings such as to stall
When condition can not normal direction of rotation the problem of.
In order to solve the above technical problems, the utility model provides a kind of steering of commercial car, including main transfer,
Emergency power unit, reversal valve and monitoring unit, wherein main transfer includes steering gear and provided for the steering gear dynamic
The main power units of power；Emergency power unit is used to provide power to the steering gear；Reversal valve is arranged in the active force list
On connecting path between the first and described steering gear, the reversal valve is also connected with the emergency power unit, and makes described turn
It is selectively formed and is connected with the main power units or the emergency power unit to device；Monitoring unit setting turns in the master
To on the connecting path of device to monitor the working condition of the main power units；The monitoring unit also with the reversal valve,
The emergency power unit communication connection, to control the working condition of the reversal valve and the emergency power unit.
Preferably, the monitoring unit includes flow gauge (FG), and flow gauge (FG) setting is in the reversal valve and described
Between main power units.
Preferably, the emergency power unit include emergency pump, the servo motor for driving the emergency pump, with it is described
The emergent turning oil tank of emergency pump connection, the emergency pump connect the steering gear, the servo motor through the reversal valve
It is communicated to connect with the monitoring unit.
Preferably, the main power units include the main turning oil tank that main pump is connected to the main pump, the main pump warp
The reversal valve connects the steering gear.
Preferably, the main turning oil tank, the emergent turning oil tank pass through oil return line and the steering gear
Oil return opening connect, the oil return line be equipped with switching valve so that the steering gear selectively with the main steering oil storage
Tank or the emergent turning oil tank connection.
Preferably, being equipped between the main turning oil tank and the switching valve allows the past main turning oil tank unidirectional
First check valve of conducting, being equipped between the emergent turning oil tank and the switching valve allows toward the emergent steering oil storage
Second check valve of tank one-way conduction.
Preferably, the main turning oil tank independently of each other or is connected in series with the emergent turning oil tank.
Preferably, the steering gear is ball-and-nut power steering gear.
The application also provides a kind of commercial car comprising above-mentioned steering.
As shown from the above technical solution, the beneficial effects of the utility model are：
The utility model commercial car and steering, when main transfer is in normal condition, main power units are to turn
Power is provided to device, and commercial car is driven to turn to.It, can control commutation in time when monitoring unit monitors main power units damage
Valve commutates, and so that steering gear is connected to emergency power unit, emergency power unit provides power for steering gear and drives commercialization at this time
Vehicle turns to, and to ensure to fail in emergency circumstances in main power units, commercial car can still provide for normal steering operation, it is ensured that
The safety of vehicle traveling.
Description of the drawings
Fig. 1 is the principle schematic of the steering preferred embodiment of the utility model commercial car.
The reference numerals are as follows：1, steering；11, main transfer；111, steering gear；112, main power units；
1121, main pump；1122, main turning oil tank；121, emergency power unit；1211, emergency pump；1212, servo motor；1213、
Emergent turning oil tank；13, reversal valve；14, monitoring unit；141, flow gauge (FG)；15, oil return line；16, switching valve；17、
First check valve；18, the second check valve.
Specific implementation mode
Embodying the exemplary embodiment of the utility model features and advantages will describe in detail in the following description.It should be understood that
To be the utility model can have various variations in different embodiments, all do not depart from the model of the utility model
It encloses, and the descriptions and illustrations are essentially for illustration purposes, rather than to limit the utility model.
In order to further illustrate the principles of the present invention and structure, the preferred implementation in conjunction with attached drawing to the utility model
Example is described in detail.
A kind of commercial car of the application offer and its steering, steering can provide power for commercial car and realize commercialization
The steering of vehicle.
Refering to fig. 1, steering 1 includes that main transfer 11, emergency power unit 121, reversal valve 13 and monitoring are single
Member 14.Wherein, main transfer 11 includes steering gear 111 and main power units 112, main power units 112 and emergency power list
Member 121 is used to provide power to steering gear 111, and steering gear 111 is made to act on the wheel of commercial car, to drive commercial car to turn
To.
Reversal valve 13 is arranged on the connecting path between main power units 112 and steering gear 111, which also connects
Connect emergency power unit 121, and make steering gear 111 selectively with 121 shape of main power units 112 or emergency power unit
At connection.Monitoring unit 14 is arranged on the connecting path of main transfer 11, and the work for monitoring main power units 112
State, to control the commutation of reversal valve 13.
For the steering 1 of the application, when main transfer 11 is in normal condition, main power units 112 are to turn
Power is provided to device 111, and commercial car is driven to turn to.When monitoring unit 14 monitors that main power units 112 damage, can control
Reversal valve 13 commutates, and steering gear 111 is made to be connected to emergency power unit 121.Emergency power unit 121 is steering gear 111 at this time
There is provided power and drive commercial car to turn to, to ensure main power units 112 failure in emergency circumstances, commercial car remain into
The normal steering operation of row, it is ensured that the safety of vehicle traveling.
Further, monitoring unit 14 includes flow gauge (FG) 141, which is arranged in 13 He of reversal valve
It between main power units 112, and is communicated to connect with reversal valve 13, emergency power unit 121, to control reversal valve 13 and answer jerking movement
The working condition of power unit 121.
In the oil circuit Traffic Anomaly of main transfer 11, flow gauge (FG) 141 is respectively to reversal valve 13 and emergency power
Unit 121 sends electric signal.Reversal valve 13 commutates after receiving electric signal, so that steering gear 111 and emergency power unit 121
Connection is formed, while emergency power unit 121 is that steering gear 111 provides power also according to electric signal startup, to adjust in time
Whole power drive ensures commercial car normal direction of rotation.
Emergency power unit 121 includes emergency pump 1211, servo motor 1212 and is connected to emergency pump 1211 emergent
Turning oil tank 1213.Wherein, servo motor 1212 is communicated to connect with monitoring unit 14, and for driving 1211 work of emergency pump
Make, emergency pump 1211 connects steering gear 111 through reversal valve 13.
Main power units 112 include main pump 1121 and main turning oil tank 1122, wherein main turning oil tank 1122 and master
1121 connection of pump, main pump 1121 connect steering gear 111 through reversal valve 13.In the present embodiment, main turning oil tank 1122 with answer
Anxious turning oil tank 1213 is mutual indepedent.In other preferably embodiment, main turning oil tank 1122 is stored up with emergent turn to
Oil tank 1213 can be also connected in series with.
In addition, the main turning oil tank 1122 and emergent turning oil tank 1213 of the present embodiment are the oil of built-in filter core
Tank.In some other embodiment, main turning oil tank 1122 and emergent turning oil tank 1213 can also be external by filter device
Series connection, such as rough filtering device is set, in tank nozzle setting fine filtering device in oil tank oil return opening.
In the present embodiment, steering gear 111 is recirculating ball-type steering, with P mouthfuls and T mouthfuls.P mouthfuls through reversal valve 13
And it is selectively connected to main pump 1121 or emergency pump 1211, P mouthfuls when being connected to main pump 1121, i.e. main pump 1121 and steering gear
Oil inlet passage is formed between 111, main power units 112 are that steering gear 111 provides power at this time；P mouthfuls are connected to emergency pump 1211
When, i.e., oil inlet passage is formed between emergency pump 1211 and steering gear 111, emergency power unit 121 is that steering gear 111 provides at this time
Power.
The reversal valve 13 of the present embodiment is two-position three-way valve, with P mouthfuls, P1 mouthfuls and T mouthfuls.Wherein P mouthfuls and main pump 1121
Connection, P1 mouthfuls connect with emergency pump 1211, and T mouthfuls connect with the P of steering gear 111 mouths.In reversal valve 13, T mouthfuls selectively with P
Mouth, P1 mouthfuls of connections, to make to form oil inlet access between steering gear 111 and main pump 1121 or emergency pump 1211.
Further, the T mouths of steering gear 111 pass through oil return line 15 and main turning oil tank 1122, emergent steering oil storage
Tank 1213 connects.Oil return line 15 be equipped with switching valve 16 so that steering gear 111 selectively with main turning oil tank
1122 or emergent turning oil tanks 1213 are connected to.
Specifically, the switching valve 16 of the present embodiment is two-position three-way valve, with P mouthfuls, T mouthfuls and T1 mouthfuls.Wherein, P mouthfuls with
The T mouths of steering gear 111 connect, and T1 mouthfuls connect with emergent turning oil tank 1213, and T mouthfuls connect with main turning oil tank 1122.
In switching valve 16, P mouthfuls are selectively connected to T mouthfuls, T1 mouthfuls, to make steering gear 111 and main turning oil tank 1122 or meet an urgent need
Way to cycle oil is formed between turning oil tank 1213.
Preferably, being equipped between main turning oil tank 1122 and switching valve 16 allows toward main turning oil tank 1122 unidirectionally
First check valve 17 of conducting, meeting an urgent need to be equipped between turning oil tank 1213 and switching valve 16 allows toward emergent turning oil tank
Second check valve 18 of 1213 one-way conductions, to avoid the liquid in main turning oil tank 1122 and emergent turning oil tank 1213
Pressure oil flows back into steering gear 111.
In some other embodiment, steering gear 111 can also be the steering of rack and pinion steering gear or other forms
Device.Reversal valve 13 and switching valve 16 may be replaced by two position four-way valves or other valves parts, only need to realize steering gear 111 with
Selective connection and steering gear 111 and main turning oil tank 1122, emergent steering between main pump 1121, emergency pump 1211
It is selectively connected between oil storage tank 1213.
Furthermore, it is necessary to which explanation, on the basis of the application steering 1, can add power-assisted oil cylinder, equally can
Realize the purpose that commercial car turns to.
The operation principle of the steering 1 of the application is：
When main transfer 11 is in normal operating condition, the T mouths of reversal valve 13 are connected to P mouthfuls, main pump 1121 with turn
To oil inlet access is formed between device 111, main power units 112 are that steering gear 111 provides power, and commercial car is driven to turn to；Together
When switching valve 16 P mouths made turn with forming way to cycle oil between steering gear 111 and main turning oil tank 1122 with T mouthful connections
The hydraulic oil flowed out to the T mouths of device 111 is back in main turning oil tank 1122.
When main transfer 11 fails, as when oil circuit Traffic Anomaly, flowed in the damage of main pump 1121 or main transfer 11
Flow indicator 141 sends electric signal to reversal valve 13 and emergency power unit 121 respectively, and reversal valve 13 changes after receiving electric signal
To making T mouthfuls to be connected to by the oil communication between emergency pump 1211 and steering gear 111 with P1 mouthfuls, the then basis of servo motor 1212
Electric signal drives emergency pump 1211 to work, and commercial car is realized to make emergency power unit 121 provide power for steering gear 111
Steering；The P mouths of switching valve 16 and T1 mouthfuls of connections simultaneously, to be formed between steering gear 111 and emergent turning oil tank 1213
Way to cycle oil makes the hydraulic oil that the T mouths of steering gear 111 flow out be back in emergent turning oil tank 1213.
For steering provided by the present application, when main transfer fails, whole system can switch in time answers
Jerking movement power cell operation, makes emergency power unit provide power for steering gear, to drive commercial car to turn to, to ensure commercial car
When main transfer fails, normal steering operation can still provide for, it is ensured that the safety of vehicle traveling.
Although describing the utility model with reference to several exemplary embodiments, it is to be understood that, term used is to say
Term bright and exemplary, and not restrictive.Since the utility model can in a variety of forms be embodied without departing from practicality
Novel spirit or essence, it should therefore be appreciated that the above embodiment is not limited to any details above-mentioned, and should be in accompanying right
Widely explained in spirit and scope defined by it is required that, thus fall into whole variations in claim or its equivalent scope and
Remodeling all should be appended claims and be covered.
Claims (9)
1. a kind of steering of commercial car, which is characterized in that including：
Main transfer, including steering gear and the main power units that power is provided for the steering gear；
Emergency power unit, for providing power to the steering gear；
Reversal valve is arranged on the connecting path between the main power units and the steering gear, and the reversal valve is also connected with
The emergency power unit, and make the steering gear selectively with the main power units or the emergency power unit shape
At connection；
Monitoring unit is arranged on the connecting path of the main transfer to monitor the working condition of the main power units；
The monitoring unit is also communicated to connect with the reversal valve, the emergency power unit, to control the reversal valve and described answer
The working condition of anxious power unit.
2. steering according to claim 1, which is characterized in that the monitoring unit includes flow gauge (FG), the stream
Flow indicator is arranged between the reversal valve and the main power units.
3. steering according to claim 1, which is characterized in that the emergency power unit includes emergency pump, is used for
The servo motor for driving the emergency pump, the emergent turning oil tank being connected to the emergency pump change described in emergency pump warp
The steering gear is connected to valve, the servo motor is communicated to connect with the monitoring unit.
4. steering according to claim 3, which is characterized in that the main power units include main pump and the main pump
The main turning oil tank of connection, the main pump connect the steering gear through the reversal valve.
5. steering according to claim 4, which is characterized in that the main turning oil tank, the emergent steering storage
Oil tank is connect by oil return line with the oil return opening of the steering gear, and the oil return line is equipped with switching valve, so that described
Steering gear is selectively connected to the main turning oil tank or the emergent turning oil tank.
6. steering according to claim 5, which is characterized in that between the main turning oil tank and the switching valve
Equipped with the first check valve allowed toward the main turning oil tank one-way conduction, the emergent turning oil tank and the switching valve
Between be equipped with allow toward the emergent turning oil tank one-way conduction the second check valve.
7. steering according to claim 4, which is characterized in that the main turning oil tank is stored up with the emergent steering
Oil tank is mutual indepedent or is connected in series with.
8. steering according to claim 1, which is characterized in that the steering gear is ball-and-nut power steering gear.
9. a kind of commercial car, which is characterized in that including such as claim 1~8 any one of them steering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820057608.1U CN207790833U (en) | 2018-01-12 | 2018-01-12 | Commercial car and its steering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820057608.1U CN207790833U (en) | 2018-01-12 | 2018-01-12 | Commercial car and its steering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207790833U true CN207790833U (en) | 2018-08-31 |
Family
ID=63271868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820057608.1U Active CN207790833U (en) | 2018-01-12 | 2018-01-12 | Commercial car and its steering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207790833U (en) |
-
2018
- 2018-01-12 CN CN201820057608.1U patent/CN207790833U/en active Active
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