CN106704307A - Anti-explosion electronic control hydraulic driving system used for engineering machinery vehicle - Google Patents
Anti-explosion electronic control hydraulic driving system used for engineering machinery vehicle Download PDFInfo
- Publication number
- CN106704307A CN106704307A CN201710044578.0A CN201710044578A CN106704307A CN 106704307 A CN106704307 A CN 106704307A CN 201710044578 A CN201710044578 A CN 201710044578A CN 106704307 A CN106704307 A CN 106704307A
- Authority
- CN
- China
- Prior art keywords
- hydraulic oil
- oil container
- explosion
- motor
- engineering machinery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses an anti-explosion electronic control hydraulic driving system used for an engineering machinery vehicle. The anti-explosion electronic control hydraulic driving system comprises a driving motor, a hydraulic pump, a hydraulic oil tank, a motor driver and a microcomputer driver; a shell is further included and is installed inside the hydraulic oil tank in a hidden manner, a shell connector is arranged on the shell, and the driving motor is arranged inside the shell; an oil tank connector is arranged on the hydraulic oil tank, one end of a gas conveying pipe in a tank body is in sealed connection with the shell connector, and the other end of the gas conveying pipe in the tank body is in sealed connection with the side, located inside the hydraulic oil tank, of the oil tank connector; a respirator is arranged outside the hydraulic oil tank, and one side of the respirator is connected with a gas storage bag; and one end of a gas conveying pipe outside the tank body is in sealed connection with the side, located outside the hydraulic oil tank, of the oil tank connector, and the other end of the gas conveying pipe outside the tank body is in sealed connection with the other side of the respirator. By means of the anti-explosion electronic control hydraulic driving system, all electrical apparatus elements can safely work in an environment needing explosion prevention without anti-explosion treatment, and therefore the cost of the electric vehicle can be reduced.
Description
Technical field
The present invention relates to the technical field of hydraulic-driven, more particularly to a kind of explosion-proof automatically controlled fluid power system.
Background technology
The anti-explosion engineering machinery electric vehicle sold in the market and use, comprising all kinds of Anti-explosion electric forklifts, heap is high
Car leads the operating modes such as the walking of these vehicles, lifting, steering, potential energy recovery, and they all use multiple electric motors, electric controller, driving-chain
Come what is driven, this results in vehicle and there is following defect：
Its motor is all that using special fire-proof motor, this fire-proof motor uses flame proof form, and weight is big and valency
Lattice are expensive, and for the fork truck of multi-motor driving, price is higher, and its cost is higher, because their weight is big, fork truck will be made to conduct oneself with dignity
Increase, it is bulky, increase energy consumption.
Electric elements are completely submerged in oil, explosion prevention function can be played, it is therefore necessary to motor implemented to seal, that is, is forbidden
Fluid enters the inside of motor.Due to motor rotor operationally also can agitation air air is generated heat, generate heat air biography
The effect of leading makes that the motor feels hot, the motor cooling when motor does not work, and causes motor to be in a cold thermal condition, and the sealing of motor is received
Air thermal expansion contracting in motor, impacts the sealing of motor and it is failed, and damages.
The content of the invention
For the problem of above-mentioned generation, it is an object of the invention to provide a kind of for the explosion-proof automatically controlled of engineering machinery vehicle
Fluid power system.
To achieve these goals, the technical scheme taken of the present invention is：
A kind of explosion-proof automatically controlled fluid power system for engineering machinery vehicle, including a motor, a hydraulic pump, one
Hydraulic oil container, a motor driver and a micom drives device, wherein, also include：One housing, the housing is seal casinghousing, institute
State housing to dive the inside loaded on the hydraulic oil container, a shell joint is provided with the housing, the motor is arranged on
The inside of the housing；Appendix in one casing, is provided with a fuel tank connector, appendix in the casing on the hydraulic oil container
One end be tightly connected with the shell joint, in the casing other end of appendix with the fuel tank connector positioned at described
The interior side of hydraulic oil container is tightly connected；One respirator, the respirator is arranged at the outside of the hydraulic oil container, described to exhale
The side of haustorium is connected with an air storage bag；The outer appendix of one casing, one end of the outer appendix of the casing and the oil tank joint
The outside side positioned at the hydraulic oil container of head is tightly connected, the other end and the respirator of the outer appendix of the casing
Opposite side is tightly connected.
The above-mentioned explosion-proof automatically controlled fluid power system for engineering machinery vehicle, wherein, the hydraulic pump is latent to be loaded on institute
The inside of hydraulic oil container is stated, the hydraulic pump is connected with the motor, the hydraulic pressure is driven by the motor
Pump.
The above-mentioned explosion-proof automatically controlled fluid power system for engineering machinery vehicle, wherein, the motor driver and institute
Micom drives device is stated to dive the inside loaded on the hydraulic oil container.
The above-mentioned explosion-proof automatically controlled fluid power system for engineering machinery vehicle, wherein, the hydraulic oil container is unlimited
Formula structure, the hydraulic oil filled with effective liquid level in the hydraulic oil container, by the hydraulic oil by the motor, the liquid
Press pump, the hydraulic oil container, the motor driver and the micom drives device and extraneous gas completely cut off.
The above-mentioned explosion-proof automatically controlled fluid power system for engineering machinery vehicle, wherein, the hydraulic oil container is full envelope
Closed type structure, is additionally provided with a top tank on the upside of the hydraulic oil container, the top tank is unenclosed construction, the top tank
Connected by a connecting tube between the hydraulic oil container.
The above-mentioned explosion-proof automatically controlled fluid power system for engineering machinery vehicle, wherein, the top tank is open type
Structure, the hydraulic oil container is full of hydraulic oil, hydraulic oil of the top tank filled with effective liquid level, and the hydraulic oil container is filled with having
The hydraulic oil of liquid level is imitated, by the hydraulic oil by the motor, the hydraulic pump, the hydraulic oil container, the motor
Driver and the micom drives device completely cut off with extraneous gas.
The above-mentioned explosion-proof automatically controlled fluid power system for engineering machinery vehicle, wherein, installed in the hydraulic oil container
There are a liquid level sensor and a temperature sensor.
The above-mentioned explosion-proof automatically controlled fluid power system for engineering machinery vehicle, wherein, the air storage bag is blanket gas
Capsule, the air storage bag can use leather bag or mechanical air bag.
As a result of above-mentioned technology, the good effect for being allowed to have compared with prior art is the present invention：
(1) present invention by motor using common non-fire-proof motor and with hydraulic pump, Hydraulic power units, all of
The microcomputerized controller of magnetic valve, motor driver and the manipulation whole motor-driven work of electric motor car is dived in hydraulic oil container together, drives electricity
Machine, be assembled in microcomputerized controller together with, there is an appendix to be closely connected with electric machine casing on motor, the appendix and liquid
Casing external respirator and air storage bag connection are pressed oil, air storage bag can be using leather bag and/or mechanical air bag composition, air storage bag and the external world
Isolation is in sealing state.All of electric elements is not contacted with external environment, make all of electric elements without explosion-proof place
Reason just can safely work in the case where explosion-proof environment is needed, so as to reduce the cost of electric motor car.
Brief description of the drawings
Fig. 1 is the schematic diagram of the explosion-proof automatically controlled fluid power system for engineering machinery vehicle of the invention.
Fig. 2 is the fuel tank schematic diagram of the explosion-proof automatically controlled fluid power system for engineering machinery vehicle of the invention.
In accompanying drawing：1st, hydraulic pump；2nd, hydraulic oil container；21st, fuel tank connector；22nd, top tank；221st, connecting tube；3rd, housing；
31st, shell joint；41st, appendix in casing；42nd, the outer appendix of casing；5th, respirator；6th, air storage bag；7th, liquid level sensor；8、
Temperature sensor；9th, motor driver.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as limiting to the invention.
Fig. 1 is the schematic diagram of the explosion-proof automatically controlled fluid power system for engineering machinery vehicle of the invention, refers to Fig. 1
It is shown, a kind of explosion-proof automatically controlled fluid power system for engineering machinery vehicle of preferred embodiment is shown, include：Drive
Motor, hydraulic pump 1, hydraulic oil container 2, the micom drives device of motor driver 9 and, wherein motor can use common electric machine,
Fire-proof motor need not be selected, being capable of reduces cost.
Additionally, in as preferred embodiment, the explosion-proof automatically controlled fluid power system for engineering machinery vehicle also includes：
Housing 3, housing 3 is seal casinghousing, and the latent inside loaded on hydraulic oil container 2 of housing 3 is provided with shell joint 31, drives on housing 3
Motor is arranged on the inside of housing 3.
In addition, in as preferred embodiment, the explosion-proof automatically controlled fluid power system for engineering machinery vehicle also includes：
Appendix 41 in casing, are provided with fuel tank connector 21 on hydraulic oil container 2, one end of appendix 41 is close with shell joint 31 in casing
Envelope connection, the other end of appendix 41 is tightly connected with the interior side positioned at hydraulic oil container 2 of fuel tank connector 21 in casing.
Further, in as preferred embodiment, the explosion-proof automatically controlled fluid power system for engineering machinery vehicle is also wrapped
Include：Respirator 5, respirator 5 is arranged at the outside of hydraulic oil container 2, and the side of respirator 5 is connected with air storage bag 6.
Further, in as preferred embodiment, for engineering machinery vehicle explosion-proof automatically controlled fluid power system also
Including：The outer appendix 42 of casing, one end of the outer appendix 42 of casing and the outside side positioned at hydraulic oil container 2 of fuel tank connector 21
It is tightly connected, the other end of the outer appendix 42 of casing is tightly connected with the opposite side of respirator 5.
Further, as in preferred embodiment, the latent inside loaded on hydraulic oil container 2 of hydraulic pump 1, hydraulic pump 1 is electric with driving
Machine is connected, and hydraulic pump 1 is driven by motor.
Further, as in preferred embodiment, motor driver 9 and micom drives device are dived the inside loaded on hydraulic oil container 2.
Therefore, all of electric elements are dived and are loaded on the inside of hydraulic oil container 2, by the hydraulic oil submergence in hydraulic oil container 2, not with the external world
Environment is contacted, and all of electric elements just can need not be safely worked under the explosion-proof environment of needs by technological processing for explosion protection feature.
Preferred embodiments of the present invention are the foregoing is only, embodiments of the present invention and protection model is not thereby limited
Enclose.
The present invention on the basis of the above also have mode is implemented as follows：
It is shown in Figure 1 in further embodiment of the present invention, a kind of hydraulic oil container 2 is shown, wherein, hydraulic oil
Case 2 is the hydraulic oil filled with effective liquid level in unenclosed construction, hydraulic oil container 2.
Fig. 2 is the fuel tank schematic diagram of the explosion-proof automatically controlled fluid power system for engineering machinery vehicle of the invention, please be joined
As shown in Figure 2, another hydraulic oil container 2 is shown, hydraulic oil container 2 is full-enclosed structure, is also set up on the upside of hydraulic oil container
There is top tank 22, top tank 22 is unenclosed construction, is connected by connecting tube 221 between top tank 22 and hydraulic oil container 2.Cause
This, fuel tank can use above-mentioned two-stage fabricated structure, by increasing capacitance it is possible to increase area of dissipation, and be easy to arrangement.
In further embodiment of the present invention, top tank 22 is unenclosed construction, and hydraulic oil container 2 is full of hydraulic oil, oils
Hydraulic oil of the case 22 filled with effective liquid level.
In further embodiment of the present invention, liquid level sensor 7 and temperature sensor 8 are installed in hydraulic oil container 2.Work as liquid
When the liquid level of force feed is less than setting value, liquid level sensor 7 sends alarm signal, whole when the liquid level of hydraulic oil is less than limiting value
Machine automatically cuts off power supply and is stopped.When the oil temperature of item hydraulic oil exceedes certain value, temperature sensor 8 sends alarm signal.
In further embodiment of the present invention, air storage bag 6 is pressure bladder, and air storage bag 6 can use leather bag or mechanical gas
Capsule.Because air storage bag 6 is sealed, extraneous explosion hazard gases cannot be introduced into motor with explosive dust, will not with hydraulic oil container 2 outside
Flammable gases contact, therefore they can safely work in the case where explosion-proof environment is needed.
In further embodiment of the present invention, the magnetic valve (including directional control valve and regeneration control valve etc.) of system is by group
Into an integrated package, the inside loaded on hydraulic oil container 2 of also diving, because hydraulic oil submerges magnetic valve, thus system ordinary electromagnetic
Valve can work in the internal security of hydraulic oil container 2.
In further embodiment of the present invention, because motor can generate heat during operating, a part of heat dissipates
It is dealt into hydraulic oil, is radiated by hydraulic oil, another part heat can raises the temperature of housing 3, then the air in housing 3
Expand and produce pressure, as temperature is raised, pressure can also increase, it is possible to damage the sealing (i.e. oil sealing) of motor
It is bad, cause hydraulic oil to penetrate into motor, increase the power attenuation of motor.The leather bag using bladder of air storage bag 6
Due to the small easy expansion of rigidity, the pressure in housing 2 is due to the expansion of air storage bag 6, it is impossible to be continuously increased, because open type
Pressure in hydraulic oil container 2 is an atmospheric pressure (pressure gauge is shown as zero), and the pressure outside air storage bag 6 is also an atmospheric pressure,
Therefore pressure when leather bag expands is only more slightly higher than atmospheric pressure (being no more than the atmospheric pressure of pressure gauge 0.02), and the pressure-resistant of oil sealing is
1~2 atmospheric pressure, can so ensure the safety of oil sealing, and then housing 2 is just safer.With should motor do not work when,
Motor is cooled down, the contraction of gas in housing 2, and the air pressure in such air storage bag 6 is higher than the air pressure in housing 2, in air storage bag 6
High pressure gas pass through respirator 5 to the Inner gas transmissions of housing 2, until both sides' air pressure is equal.
Preferred embodiments of the present invention are the foregoing is only, embodiments of the present invention and protection model is not thereby limited
Enclose, to those skilled in the art, should can appreciate that done by all utilization description of the invention and diagramatic content
Scheme obtained by equivalent and obvious change, should be included in protection scope of the present invention.
Claims (8)
1. a kind of explosion-proof automatically controlled fluid power system for engineering machinery vehicle, including a motor, a hydraulic pump, a liquid
Force feed case, a motor driver and a micom drives device, it is characterised in that also include：
One housing, the housing is seal casinghousing, and the housing is dived the inside loaded on the hydraulic oil container, is set on the housing
There is a shell joint, the motor is arranged on the inside of the housing；
Appendix in one casing, is provided with a fuel tank connector on the hydraulic oil container, one end of appendix and institute in the casing
State shell joint to be tightly connected, the other end of appendix and the fuel tank connector positioned at the hydraulic oil container in the casing
Interior side is tightly connected；
One respirator, the respirator is arranged at the outside of the hydraulic oil container, the side of the respirator and an air storage bag phase
Connection；
The outer appendix of one casing, one end of the outer appendix of the casing is with the fuel tank connector positioned at the outer of the hydraulic oil container
Portion side is tightly connected, and the other end of the outer appendix of the casing is tightly connected with the opposite side of the respirator.
2. the explosion-proof automatically controlled fluid power system for engineering machinery vehicle according to claim 1, it is characterised in that institute
State hydraulic pump to dive the inside loaded on the hydraulic oil container, the hydraulic pump is connected with the motor, by the driving
Motor drives the hydraulic pump.
3. the explosion-proof automatically controlled fluid power system for engineering machinery vehicle according to claim 1, it is characterised in that institute
State motor driver and the micom drives device is dived the inside loaded on the hydraulic oil container.
4. the explosion-proof automatically controlled fluid power system for engineering machinery vehicle according to Claims 2 or 3, its feature exists
In the hydraulic oil container is unenclosed construction, and hydraulic oil of the hydraulic oil container filled with effective liquid level will by the hydraulic oil
The motor, the hydraulic pump, the hydraulic oil container, the motor driver and the micom drives device and extraneous gas
Isolation.
5. the explosion-proof automatically controlled fluid power system for engineering machinery vehicle according to Claims 2 or 3, its feature exists
In the hydraulic oil container is full-enclosed structure, and a top tank is additionally provided with the upside of the hydraulic oil container, and the top tank is
Unenclosed construction, is connected between the top tank and the hydraulic oil container by a connecting tube.
6. the explosion-proof automatically controlled fluid power system for engineering machinery vehicle according to claim 5, it is characterised in that institute
Top tank is stated for unenclosed construction, the hydraulic oil container is full of hydraulic oil, hydraulic oil of the top tank filled with effective liquid level leads to
The hydraulic oil is crossed to drive the motor, the hydraulic pump, the hydraulic oil container, the motor driver and the microcomputer
Dynamic device completely cuts off with extraneous gas.
7. the explosion-proof automatically controlled fluid power system for engineering machinery vehicle according to claim 1, it is characterised in that institute
State and be provided with hydraulic oil container a liquid level sensor and a temperature sensor.
8. the explosion-proof automatically controlled fluid power system for engineering machinery vehicle according to claim 1, it is characterised in that institute
Air storage bag is stated for pressure bladder, the air storage bag can use leather bag or mechanical air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710044578.0A CN106704307A (en) | 2017-01-19 | 2017-01-19 | Anti-explosion electronic control hydraulic driving system used for engineering machinery vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710044578.0A CN106704307A (en) | 2017-01-19 | 2017-01-19 | Anti-explosion electronic control hydraulic driving system used for engineering machinery vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704307A true CN106704307A (en) | 2017-05-24 |
Family
ID=58909303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710044578.0A Pending CN106704307A (en) | 2017-01-19 | 2017-01-19 | Anti-explosion electronic control hydraulic driving system used for engineering machinery vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704307A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4600114A (en) * | 1983-10-03 | 1986-07-15 | Dabich Robert M | Thermo expansion compensator |
| CN102761194A (en) * | 2012-07-19 | 2012-10-31 | 刘立文 | Sealing device for dust explosion-proof motor |
| CN202848990U (en) * | 2012-10-25 | 2013-04-03 | 上海优能电动车辆有限公司 | Explosion-proof handling electric vehicle |
| CN104763696A (en) * | 2015-04-16 | 2015-07-08 | 上海市闸北区物流工程技术研究所 | Electronic control hydraulic driving system used for industrial vehicles |
| CN105621322A (en) * | 2016-02-24 | 2016-06-01 | 上海市闸北区物流工程技术研究所 | Full-hydraulic electric stacking forklift |
| CN206397853U (en) * | 2017-01-19 | 2017-08-11 | 上海市闸北区物流工程技术研究所 | A kind of explosion-proof electric-controlled hydraulic drive system for engineering machinery vehicle |
-
2017
- 2017-01-19 CN CN201710044578.0A patent/CN106704307A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4600114A (en) * | 1983-10-03 | 1986-07-15 | Dabich Robert M | Thermo expansion compensator |
| CN102761194A (en) * | 2012-07-19 | 2012-10-31 | 刘立文 | Sealing device for dust explosion-proof motor |
| CN202848990U (en) * | 2012-10-25 | 2013-04-03 | 上海优能电动车辆有限公司 | Explosion-proof handling electric vehicle |
| CN104763696A (en) * | 2015-04-16 | 2015-07-08 | 上海市闸北区物流工程技术研究所 | Electronic control hydraulic driving system used for industrial vehicles |
| CN105621322A (en) * | 2016-02-24 | 2016-06-01 | 上海市闸北区物流工程技术研究所 | Full-hydraulic electric stacking forklift |
| CN206397853U (en) * | 2017-01-19 | 2017-08-11 | 上海市闸北区物流工程技术研究所 | A kind of explosion-proof electric-controlled hydraulic drive system for engineering machinery vehicle |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
|
| RJ01 | Rejection of invention patent application after publication |