CN113339334A - Potential energy recovery system of aerial work platform - Google Patents
Potential energy recovery system of aerial work platform Download PDFInfo
- Publication number
- CN113339334A CN113339334A CN202110616739.5A CN202110616739A CN113339334A CN 113339334 A CN113339334 A CN 113339334A CN 202110616739 A CN202110616739 A CN 202110616739A CN 113339334 A CN113339334 A CN 113339334A
- Authority
- CN
- China
- Prior art keywords
- energy recovery
- work platform
- aerial work
- valve
- potential energy
- 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
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 32
- 238000005381 potential energy Methods 0.000 title claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 39
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 17
- 230000005484 gravity Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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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
- F15B1/02—Installations or systems with accumulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- 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
- F15B21/14—Energy-recuperation means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention provides a potential energy recovery system for an aerial working platform, which comprises a hydraulic oil tank, a lifting oil cylinder, a control valve, an emergency descending valve, an alternating current motor, a controller, a storage battery and an energy recovery motor pump, wherein the hydraulic oil tank is respectively communicated with the lifting oil cylinder through a first oil way and a second oil way, the emergency descending valve is arranged on the first oil way, the energy recovery motor pump and the control valve are arranged on the second oil way, the energy recovery motor pump is connected with the alternating current motor, and the alternating current motor is connected with the storage battery through the controller. The invention is used for recovering the potential energy when the gravity of the aerial work platform descends, converting the potential energy into electric energy and reversely charging the electric energy into the battery, thereby improving the endurance working capacity of the aerial work platform and ensuring the system safety.
Description
Technical Field
The invention belongs to the field of aerial work platforms, and particularly relates to a potential energy recovery system of an aerial work platform.
Background
The continuous working time is an important index for measuring the aerial work platform. However, due to the limitation of the battery capacity, the endurance of the aerial work platform is difficult to improve. Conventional energy recovery systems typically employ accumulators to recover hydraulic energy. However, this energy recovery method is not efficient due to the characteristics of the accumulator; and the energy accumulator itself has a certain risk of malfunction due to the storage of high pressure liquid.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a potential energy recovery system for an aerial work platform, which is used for recovering potential energy when the gravity of the aerial work platform falls, converting the potential energy into electric energy and reversely charging the electric energy to a battery, so that the cruising working capacity of the aerial work platform is improved, and the system is high in safety.
The technical scheme adopted by the invention is as follows: the potential energy recovery system for the aerial work platform comprises a hydraulic oil tank, a lifting oil cylinder, a control valve, an emergency descending valve, an alternating current motor, a controller, a storage battery and an energy recovery motor pump, wherein the hydraulic oil tank is communicated with the lifting oil cylinder through a first oil way and a second oil way respectively, the emergency descending valve is arranged on the second oil way, the energy recovery motor pump and the control valve are arranged on the first oil way, the energy recovery motor pump is connected with the alternating current motor, and the alternating current motor is connected with the storage battery through the controller.
Further, the control valve adopts a proportional drop valve.
Further, the control valve is connected with the second oil path through an overflow valve.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, two oil ways are designed between the hydraulic oil tank and the lifting oil cylinder, the energy recovery motor pump is arranged on the first oil way, when the aerial work platform descends, the energy recovery motor pump works reversely, the principle work is equal to that of a motor, an alternating current motor is driven to work, electric energy is generated and stored in a storage battery, and potential energy is converted into electric energy, so that the cruising working capacity of the aerial work platform is improved; the emergency descending valve is installed on the second oil way, when the first oil way cannot work normally, hydraulic oil can be ensured to flow into the hydraulic oil tank normally, and the safety of the system is improved. The control valve adopts a proportional drop valve, the speed of the hydraulic oil is adjustable, the flow rate is relatively stable, and the potential energy conversion efficiency and the safety of the system are improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure, 1-a lifting oil cylinder, 2-a control valve, 3-an emergency descending valve, 4-an alternating current motor, 5-a controller, 6-a storage battery, 7-an energy recovery motor pump, 8-an overflow valve and 9-a hydraulic oil tank.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a potential energy recovery system for an aerial work platform, which comprises a hydraulic oil tank 9, a lifting oil cylinder 1, a control valve 2, an emergency descending valve 3, an alternating current motor 4, a controller 5, a storage battery 6 and an energy recovery motor pump 7, wherein the hydraulic oil tank 9 is respectively communicated with the lifting oil cylinder 1 through a first oil path and a second oil path, the emergency descending valve 3 is arranged on the second oil path, the energy recovery motor pump 7 and the control valve 2 are arranged on the first oil path, and the control valve 2 is close to the lifting oil cylinder 1, as shown in fig. 1. The control valve 2 adopts a proportional drop valve. The energy recovery motor pump 7 is connected with the alternating current motor 4, and the alternating current motor 4 is connected with the storage battery 6 through the controller 5. The control valve 2 is connected with the second oil path through an overflow valve 8.
The working principle is as follows:
when the aerial work platform is lifted, the storage battery 6 supplies power, the alternating current motor 4 drives the energy recovery motor pump 7 (positive working, the working principle is pump at the moment), and the lifting oil cylinder 1 is driven to work normally. When the aerial work platform descends, the proportional control valve 2 is electrified, high-pressure oil in a rodless cavity of the lifting oil cylinder 1 flows through the control valve 2 to drive the energy recovery motor pump 7 (the working principle is motor at the moment), the energy recovery motor pump 7 drives the alternating current motor 4 to generate electricity, and the electricity is reversely charged into the storage battery 6 through the controller 5 to complete energy recovery.
When the aerial work platform descends, if the energy recovery motor pump 7 cannot work normally, hydraulic oil flows back to the hydraulic oil tank 9 through the overflow valve 8 and part of the second oil way; if the control valve 2 can not work normally, the emergency descending valve 3 is controlled to work, and the hydraulic oil flows back to the hydraulic oil tank 9 through the second oil path. The aerial work platform can normally descend, and the safety of workers on the aerial work platform is guaranteed.
The present invention has been described in detail with reference to the embodiments, but the description is only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The scope of the invention is defined by the claims. The technical solutions of the present invention or those skilled in the art, based on the teaching of the technical solutions of the present invention, should be considered to be within the scope of the present invention, and all equivalent changes and modifications made within the scope of the present invention or equivalent technical solutions designed to achieve the above technical effects are also within the scope of the present invention.
Claims (3)
1. The utility model provides an aerial working platform potential energy recovery system which characterized in that: the hydraulic lifting device comprises a hydraulic oil tank, a lifting oil cylinder, a control valve, an emergency descending valve, an alternating current motor, a controller, a storage battery and an energy recovery motor pump, wherein the hydraulic oil tank is communicated with the lifting oil cylinder through a first oil way and a second oil way respectively, the emergency descending valve is arranged on the second oil way, the energy recovery motor pump and the control valve are arranged on the first oil way, the energy recovery motor pump is connected with the alternating current motor, and the alternating current motor is connected with the storage battery through the controller.
2. The aerial work platform potential energy recovery system of claim 1 wherein: the control valve adopts a proportional drop valve.
3. The aerial work platform potential energy recovery system of claim 1 wherein: and the control valve is connected with the second oil way through an overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110616739.5A CN113339334A (en) | 2021-06-02 | 2021-06-02 | Potential energy recovery system of aerial work platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110616739.5A CN113339334A (en) | 2021-06-02 | 2021-06-02 | Potential energy recovery system of aerial work platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113339334A true CN113339334A (en) | 2021-09-03 |
Family
ID=77475068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110616739.5A Pending CN113339334A (en) | 2021-06-02 | 2021-06-02 | Potential energy recovery system of aerial work platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113339334A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003252588A (en) * | 2002-03-05 | 2003-09-10 | Mitsubishi Heavy Ind Ltd | Energy recovery type cargo handling machine |
| CN1830750A (en) * | 2006-03-31 | 2006-09-13 | 西安交通大学 | Electric fork track lifting control system possessing energy recovery device |
| JP2007217071A (en) * | 2006-02-14 | 2007-08-30 | Nippon Yusoki Co Ltd | Lifting device |
| CN104105888A (en) * | 2012-02-17 | 2014-10-15 | 日立建机株式会社 | Construction machinery |
| CN212769663U (en) * | 2020-08-14 | 2021-03-23 | 四川坤腾科技有限公司 | Control system of hydraulic pressure platform of diving |
| CN215486885U (en) * | 2021-06-02 | 2022-01-11 | 捷尔杰（天津）设备有限公司 | Potential energy recovery system of aerial work platform |
-
2021
- 2021-06-02 CN CN202110616739.5A patent/CN113339334A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003252588A (en) * | 2002-03-05 | 2003-09-10 | Mitsubishi Heavy Ind Ltd | Energy recovery type cargo handling machine |
| JP2007217071A (en) * | 2006-02-14 | 2007-08-30 | Nippon Yusoki Co Ltd | Lifting device |
| CN1830750A (en) * | 2006-03-31 | 2006-09-13 | 西安交通大学 | Electric fork track lifting control system possessing energy recovery device |
| CN104105888A (en) * | 2012-02-17 | 2014-10-15 | 日立建机株式会社 | Construction machinery |
| CN212769663U (en) * | 2020-08-14 | 2021-03-23 | 四川坤腾科技有限公司 | Control system of hydraulic pressure platform of diving |
| CN215486885U (en) * | 2021-06-02 | 2022-01-11 | 捷尔杰（天津）设备有限公司 | Potential energy recovery system of aerial work platform |
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