CN216269511U - Emergency steering device of new-energy wide-body dump truck - Google Patents
Emergency steering device of new-energy wide-body dump truck Download PDFInfo
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- CN216269511U CN216269511U CN202122958638.4U CN202122958638U CN216269511U CN 216269511 U CN216269511 U CN 216269511U CN 202122958638 U CN202122958638 U CN 202122958638U CN 216269511 U CN216269511 U CN 216269511U
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Abstract
The utility model discloses an emergency steering device of a new energy wide dumper in the technical field of wide dumpers. The device includes: hydraulic tank, high-pressure electric pump, low pressure electric pump, flow switch, steering gear and steering cylinder, the steering gear is provided with oil inlet P, oil return T and work oil port R, L, oil return T is connected to hydraulic tank, work oil port R, L is connected to steering cylinder, high-pressure electric pump, the oil inlet of low pressure electric pump sets up respectively in hydraulic tank, high-pressure electric pump, the oil-out of low pressure electric pump communicates with the oil inlet P of steering gear respectively, flow switch sets up in the oil-out department of high-pressure electric pump, flow switch is used for the oil output of real-time detection high-pressure electric pump and will detect information transmission to VCU. When the high-pressure electric pump stops working, the VCU controls the low-pressure electric pump to work emergently to replace the high-pressure electric pump to supply oil to the steering gear, so that emergency steering is realized, and the safety of drivers and passengers and vehicles is guaranteed.
Description
Technical Field
The utility model relates to the technical field of wide-body dump trucks, in particular to an emergency steering device of a new-energy wide-body dump truck.
Background
With the large-scale development of mining, the off-highway wide-body dump truck is suitable for transportation as a vehicle with low price, strong bearing capacity and good adaptability. The traditional wide-body dump truck takes a diesel engine as a main stream, and a new energy vehicle is gradually started along with the national call for environmental protection. The pure electric wide-body dumper as one of new energy vehicles can save fuel energy, does not generate tail gas, and has the advantages of high efficiency, low noise and the like. Because a fuel engine is cancelled, the steering pump is connected without a power takeoff, an electric steering pump is needed, and the steering is realized by electrically driving the steering pump by high pressure.
Because the new energy technology starts late, a pure electric system is not mature enough, the phenomena of over-temperature, over-voltage, over-current, insulation faults and the like can occur, the whole vehicle drops high voltage, an electric steering pump stops working, a steering system fails, and great potential safety hazards are caused to a driver.
SUMMERY OF THE UTILITY MODEL
This application has solved among the prior art because of whole car falls the problem that the high pressure leads to the steering system inefficacy through providing a new forms of energy broad body tipper emergency steering device, the guarantee personal property safety.
The embodiment of the application provides a emergent device that turns to of new forms of energy broad body tipper, includes: hydraulic tank, high-pressure electric pump, low pressure electric pump, flow switch, steering gear and steering cylinder, the steering gear is provided with oil inlet P, oil return T and working oil port R, L, oil return T is connected to hydraulic tank, working oil port R, L is connected to steering cylinder, the oil inlet of high-pressure electric pump, low pressure electric pump set up respectively in hydraulic tank, the oil-out of high-pressure electric pump, low pressure electric pump respectively with the oil inlet P intercommunication of steering gear, flow switch set up in the oil-out department of high-pressure electric pump, flow switch is used for real-time detection the oil output of high-pressure electric pump will detect information transmission and send to VCU.
The beneficial effects of the above embodiment are as follows: the high voltage electric pump is supplied with high voltage electricity (typically 380V) from the new energy vehicle battery pack, while the low voltage electric pump is supplied with low voltage electricity (typically 24V) from the vehicle battery. The flow switch keeps a normally closed state to detect the oil output of the high-pressure electric pump in real time, the high-pressure electric pump works to suck oil from the hydraulic oil tank and supply the oil to the steering gear to complete normal steering under the normal condition, the high-pressure electric pump stops working under the condition that the whole vehicle drops high pressure and the like, and after the flow switch detects that the oil output of the high-pressure electric pump is little and feeds back to the VCU, the VCU controls the low-pressure electric pump to work in an emergency mode to replace the high-pressure electric pump to supply oil to the steering gear, so that emergency steering is realized, and the safety of drivers, passengers and vehicles is guaranteed.
On the basis of the above embodiments, the present application can be further improved, specifically as follows:
in one embodiment of the present application, a priority valve is further disposed between the high-pressure electric pump, the low-pressure electric pump and the steering gear, the priority valve is provided with an oil inlet P1, an oil outlet CF, and an oil outlet EF, the oil inlet P1 is connected to the oil outlets of the high-pressure electric pump and the low-pressure electric pump, respectively, the oil outlet CF is communicated with the oil inlet P of the steering gear, and the oil outlet EF is connected to the oil tank. The priority valve plays a role in switching oil ways, high-pressure oil in the priority valve flows back to the hydraulic oil tank when the steering wheel does not act, and the high-pressure oil in the priority valve is distributed to the steering oil cylinder through the steering gear to realize steering action when the steering wheel acts.
In one embodiment of the application, oil outlets of the high-pressure electric pump and the low-pressure electric pump are respectively provided with a one-way valve. Preventing the oil from flowing backwards.
In one embodiment of the present application, a return oil filter is disposed between the oil return port T of the steering gear, the oil outlet EF of the priority valve, and the hydraulic oil tank.
In one embodiment of the application, a bidirectional cushion valve and a bidirectional fluid supplementing valve are arranged between the steering gear and the steering oil cylinder. When the load is suddenly increased by external force, the two-way buffer valve is opened to play a role in protecting the oil cylinder, the oil pipe and the steering gear; when the bidirectional buffer valve is opened, the bidirectional liquid supplementing valve is used for supplementing oil to the system, and cavitation erosion of oil is prevented.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. when the high-pressure electric pump stops working, the VCU controls the low-pressure electric pump to work in an emergency mode, the high-pressure electric pump is replaced to supply oil to the steering gear, emergency steering is achieved, and safety of drivers, passengers and vehicles is guaranteed.
Drawings
In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a system according to an embodiment of the present invention.
The hydraulic control system comprises a hydraulic oil tank 1, a high-pressure electric pump 2, a low-pressure electric pump 3, a flow switch 4, a priority valve 5, a steering gear 6, a steering oil cylinder 7, an oil return filter 8, a one-way valve 9, a two-way buffer valve 10 and a two-way liquid replenishing valve 11.
Detailed Description
The present invention is further illustrated by the following detailed description, which is to be construed as merely illustrative and not limitative of the remainder of the disclosure, and modifications and variations such as those ordinarily skilled in the art are intended to be included within the scope of the present invention as defined in the appended claims.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In describing the utility model, it is not necessary for a schematic representation of the above terminology to be directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples of the utility model and features of different embodiments or examples described herein may be combined and combined by those skilled in the art without contradiction.
The embodiment of the application provides a new forms of energy wide body tipper emergency steering device, has solved among the prior art because of whole car falls the problem that the high pressure leads to the steering system inefficacy, the guarantee personal and property safety.
In order to solve the above problems, the technical solution in the embodiment of the present application has the following general idea:
example (b):
as shown in fig. 1, an emergency steering device for a new energy wide dump truck comprises: a hydraulic oil tank 1, a high-pressure electric pump 2, a low-pressure electric pump 3, a flow switch 4, a priority valve 5, a steering gear 6 and a steering oil cylinder 7.
The priority valve 5 is provided with an oil inlet P1, an oil outlet CF, EF, the oil outlet EF is connected to the hydraulic oil tank 1 through an oil return filter 8, the steering gear 6 is provided with an oil inlet P, an oil return port T and a working oil port R, L, and the oil return port T is connected to the hydraulic oil tank 1 through the oil return filter 8.
The oil inlets of the high-pressure electric pump 2 and the low-pressure electric pump 3 are respectively arranged in the hydraulic oil tank 1, the oil outlets of the high-pressure electric pump 2 and the low-pressure electric pump 3 are respectively communicated with the oil inlet P1 of the priority valve 5, and the oil outlets of the high-pressure electric pump 2 and the low-pressure electric pump 3 are respectively provided with a one-way valve 9. An oil outlet CF of the priority valve 5 is communicated with an oil inlet P of the steering gear 6, and a working oil port R, L of the steering gear 6 is connected to the steering cylinder 7.
Optionally, a bidirectional cushion valve 10 and a bidirectional fluid infusion valve 11 are arranged between the steering gear 6 and the steering cylinder 7.
The steering device feeds back a signal to the priority valve through the LS oil path, the priority valve receives the feedback signal and then switches from the oil outlet EF to the oil outlet CF to start steering.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
1. when the high-pressure electric pump stops working, the VCU controls the low-pressure electric pump to work in an emergency mode, the high-pressure electric pump is replaced to supply oil to the steering gear, emergency steering is achieved, and safety of drivers, passengers and vehicles is guaranteed.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (5)
1. The utility model provides an emergent device that turns to of wide body tipper of new forms of energy which characterized in that includes: hydraulic tank, high-pressure electric pump, low pressure electric pump, flow switch, steering gear and steering cylinder, the steering gear is provided with oil inlet P, oil return T and working oil port R, L, oil return T is connected to hydraulic tank, working oil port R, L is connected to steering cylinder, the oil inlet of high-pressure electric pump, low pressure electric pump set up respectively in hydraulic tank, the oil-out of high-pressure electric pump, low pressure electric pump respectively with the oil inlet P intercommunication of steering gear, flow switch set up in the oil-out department of high-pressure electric pump, flow switch is used for real-time detection the oil output of high-pressure electric pump will detect information transmission and send to VCU.
2. The emergency steering device of the new energy wide dump truck according to claim 1, characterized in that: and priority valves are further arranged among the high-pressure electric pump, the low-pressure electric pump and the steering gear, each priority valve is provided with an oil inlet P1, an oil outlet CF and an oil outlet EF, the oil inlets P1 are respectively connected with the oil outlets of the high-pressure electric pump and the low-pressure electric pump, the oil outlets CF are communicated with the oil inlet P of the steering gear, and the oil outlets EF are connected to the oil tank.
3. The emergency steering device of the new energy wide dump truck according to claim 2, characterized in that: and oil outlets of the high-pressure electric pump and the low-pressure electric pump are respectively provided with a one-way valve.
4. The emergency steering device of the new energy wide dump truck according to claim 3, characterized in that: and an oil return filter is arranged between the oil return port T of the steering gear, the oil outlet EF of the priority valve and the hydraulic oil tank.
5. The emergency steering device of the new energy wide dump truck according to claim 1, characterized in that: and a bidirectional buffer valve and a bidirectional liquid supplementing valve are arranged between the steering gear and the steering oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122958638.4U CN216269511U (en) | 2021-11-29 | 2021-11-29 | Emergency steering device of new-energy wide-body dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122958638.4U CN216269511U (en) | 2021-11-29 | 2021-11-29 | Emergency steering device of new-energy wide-body dump truck |
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| Publication Number | Publication Date |
|---|---|
| CN216269511U true CN216269511U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122958638.4U Active CN216269511U (en) | 2021-11-29 | 2021-11-29 | Emergency steering device of new-energy wide-body dump truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230806A (en) * | 2022-09-06 | 2022-10-25 | 山东蓬翔汽车有限公司 | Emergency steering system of electric wide-body dumper |
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2021
- 2021-11-29 CN CN202122958638.4U patent/CN216269511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230806A (en) * | 2022-09-06 | 2022-10-25 | 山东蓬翔汽车有限公司 | Emergency steering system of electric wide-body dumper |
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