CN220245499U - High-voltage electric hydraulic drive system and overhead working truck - Google Patents
High-voltage electric hydraulic drive system and overhead working truck Download PDFInfo
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- CN220245499U CN220245499U CN202321879019.9U CN202321879019U CN220245499U CN 220245499 U CN220245499 U CN 220245499U CN 202321879019 U CN202321879019 U CN 202321879019U CN 220245499 U CN220245499 U CN 220245499U
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 16
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- 230000009467 reduction Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims 1
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Abstract
The utility model discloses a high-voltage electric hydraulic drive system which comprises a high-voltage battery, a controller and a high-voltage motor, wherein the high-voltage battery supplies energy for the high-voltage motor through the controller, the high-voltage motor is connected with an on-board pump and an off-board pump at the same time and can drive the on-board pump and the off-board pump to work respectively, an output port of the on-board pump is connected with an action executing mechanism and conveys hydraulic oil to the action executing mechanism, and an output port of the off-board pump is connected with a travelling mechanism and conveys hydraulic oil to the travelling mechanism. The power aspect has sufficient assurance, makes the working height can easily reach more than 30 meters, removes high-voltage motor part, and the balance is hydraulic component and drives and action execution, and motor controller trinity satisfies all power demands, reduces whole car cost. Further, the off-board part has no electric element, the wading performance is excellent, and the practicability, stability, cost performance and the like of the whole car are greatly improved. The utility model provides an overhead working truck comprising the high-voltage electric hydraulic drive system.
Description
Technical Field
The utility model relates to the field of engineering machinery, in particular to a high-voltage electric hydraulic drive system. In addition, the utility model also relates to an overhead working truck comprising the high-voltage electric hydraulic drive system.
Background
The traditional energy source of the overhead working truck is diesel oil, the combustion efficiency of the diesel engine is only 35% -40%, and the use of the diesel engine as main power causes energy waste and environmental pollution. The existing overhead working truck is generally powered by a fuel engine, and tail gas and noise generated in the construction process pollute the surrounding environment. With the continuous improvement of energy conservation and emission reduction requirements of various countries around the world and the strict requirements of urban environmental noise, the common aerial working vehicle with the fuel engine cannot meet the environmental requirements, and a high-altitude working vehicle with little environmental pollution during construction operation is needed.
Therefore, in the large environment with an electric trend, low-voltage electric products of an aerial work platform are widely applied, the low-voltage electric products are connected with an action motor through an action controller, the action motor drives an on-board pump to work, the on-board pump controls the extension and retraction of an oil cylinder through a valve, corresponding action control of an arm support is achieved, meanwhile, the low-voltage battery is also connected with a traveling motor through a traveling controller, the traveling motor is connected with wheels, a traveling function is achieved, the working voltage range of the low-voltage battery is 48V to 80V, and the low-voltage electric products are generally applicable to vehicle types below 30 meters.
However, the low-voltage high-altitude operation vehicle can only realize an electric driving mode, namely, the running is performed by a battery-driven motor, the defect of insufficient power exists, the low-voltage high-altitude operation vehicle can only provide power for the boarding action of the high-altitude operation vehicle, and the running module can only be provided with the running motor and the controller to realize the functions, so that the manufacturing cost is higher.
Therefore, how to provide a high-voltage electric hydraulic driving system meeting the power requirement is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims to provide a high-voltage electric hydraulic driving system, which is characterized in that a high-voltage battery is used for providing power for a high-voltage motor, the high-voltage motor is used for providing power for an on-board pump and an off-board pump at the same time, hydraulic driving is provided for the running of a whole car, the power of the whole car is improved, and the equipment cost is reduced. Another object of the present utility model is to provide an overhead working truck comprising the above-described high-voltage electric hydraulic drive system.
In order to solve the technical problems, the utility model provides a high-voltage electric hydraulic driving system which comprises a high-voltage battery, a controller and a high-voltage motor, wherein the high-voltage battery provides energy for the high-voltage motor through the controller, the high-voltage motor is connected with an on-board pump and an off-board pump at the same time and can drive the on-board pump and the off-board pump to work respectively, an output port of the on-board pump is connected with an action executing mechanism and conveys hydraulic oil to the action executing mechanism, and an output port of the off-board pump is connected with a travelling mechanism and conveys hydraulic oil to the travelling mechanism.
Preferably, the action executing mechanism comprises an action control valve group and an action oil cylinder, and the output port of the boarding pump is connected with the action oil cylinder through the action control valve group.
Preferably, the action oil cylinder comprises an arm support telescopic oil cylinder, an arm support amplitude varying oil cylinder, a fly arm oil cylinder, an upper leveling oil cylinder and a lower leveling oil cylinder.
Preferably, the travelling mechanism comprises a travelling control valve group, a hydraulic motor and wheels, wherein an output port of the off-board pump is connected with the hydraulic motor through the travelling control valve group, and an output shaft of the hydraulic motor is connected with the wheels.
Preferably, the four hydraulic motors are respectively connected with the walking control valve group, each hydraulic motor is connected with the wheel, and the walking control valve group can respectively control the four hydraulic motors.
Preferably, the running control valve group comprises a whole vehicle running valve and a tire steering valve.
Preferably, an output shaft of the high-voltage motor is connected with an input shaft of a reduction gearbox, and an output shaft of the reduction gearbox is synchronously connected with the boarding pump and the alighting pump.
Preferably, the controller is connected with the get-on pump and the get-off pump, and is used for controlling the get-on pump and the get-off pump to absorb oil or idle.
Preferably, the operating voltage of the high-voltage battery ranges from 300V to 800V.
The utility model provides an overhead working truck, comprising the high-voltage electric hydraulic drive system.
The utility model provides a high-voltage electric hydraulic drive system which comprises a high-voltage battery, a controller and a high-voltage motor, wherein the high-voltage battery supplies energy for the high-voltage motor through the controller, the high-voltage motor is connected with an on-board pump and an off-board pump at the same time and can drive the on-board pump and the off-board pump to work respectively, an output port of the on-board pump is connected with an action executing mechanism and conveys hydraulic oil to the action executing mechanism, and an output port of the off-board pump is connected with a travelling mechanism and conveys hydraulic oil to the travelling mechanism.
In the working process, the high-voltage battery provides energy for the high-voltage motor, the high-voltage motor can drive the upper vehicle pump and the lower vehicle pump to work respectively, the upper vehicle pump can drive the action executing mechanism to work, amplitude variation, expansion, revolving table rotation and the like of the arm support are realized, the lower vehicle pump can drive the travelling mechanism to realize whole vehicle running and tire steering, the high-voltage battery is adopted as a power source, whole vehicle power is provided by the high-voltage battery, the upper vehicle working voltage and the lower vehicle working voltage are consistent, sufficient guarantee is provided in the aspect of power, the working height can easily reach more than 30 meters, the high-voltage motor part is removed, the rest is hydraulic elements to drive and act to execute, the three-in-one of the motor controller meets all power requirements, and the whole vehicle cost is reduced. Further, the off-board part has no electric element, the wading performance is excellent, and the practicability, stability, cost performance and the like of the whole car are greatly improved.
The utility model provides an overhead working truck comprising the high-voltage electric hydraulic driving system, and the high-voltage electric hydraulic driving system has the technical effects, so that the overhead working truck has the same technical effects and is not described in detail herein.
Drawings
Fig. 1 is a schematic structural diagram of a high-voltage hydraulic driving system according to an embodiment of the present utility model.
The high-voltage battery 1, the controller 2, the high-voltage motor 3, the on-board pump 4, the off-board pump 5, the action control valve group 6, the action oil cylinder 7, the walking control valve group 8, the hydraulic motor 9 and the wheels 10.
Detailed Description
The core of the utility model is to provide a high-voltage electric hydraulic driving system, wherein a high-voltage battery is used for providing power for a high-voltage motor, the high-voltage motor is used for providing power for an on-board pump and an off-board pump at the same time, hydraulic driving is provided for the running of the whole car, the power of the whole car is improved, and the equipment cost is reduced. Another core of the utility model is to provide an overhead working truck comprising the high-voltage electric hydraulic drive system.
In order to better understand the aspects of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a high-voltage hydraulic driving system according to an embodiment of the present utility model.
The utility model provides a high-voltage electric hydraulic driving system, which comprises a high-voltage battery 1, a controller 2 and a high-voltage motor 3, wherein the high-voltage battery 1 supplies energy for the high-voltage motor 3 through the controller 2, the high-voltage motor 3 is simultaneously connected with an upper car pump 4 and a lower car pump 5 and can respectively drive the upper car pump 4 and the lower car pump 5 to work, an output port of the upper car pump 4 is connected with an action executing mechanism and is used for conveying hydraulic oil to the action executing mechanism, and an output port of the lower car pump 5 is connected with a travelling mechanism and is used for conveying hydraulic oil to the travelling mechanism.
In the working process, the high-voltage battery 1 provides energy for the high-voltage motor 3, the controller 2 controls the rotating speed of the high-voltage motor 3, the switching, the rotating speed conversion, the motor state signal transmission and the like of the control switch, the high-voltage motor 3 rotates to respectively drive the upper car pump 4 and the lower car pump 5 to work, the upper car pump 4 conveys hydraulic oil to the action executing mechanism and drives the action executing mechanism to work, amplitude variation, expansion, turntable rotation and the like of the arm support are realized, the lower car pump 5 conveys the hydraulic oil to the travelling mechanism and drives the travelling mechanism, the whole car running and tire steering are realized, the high-voltage battery 1 is adopted as a power source, the whole car power is provided by the high-voltage battery, the upper car working voltage and the lower car working voltage are consistent, sufficient guarantee is provided in the aspect of power, the working height can easily reach more than 30 meters, the high-voltage motor part is removed, the rest is all hydraulic elements to drive and the action execution, and the motor controller is three-in-one to meet all power requirements, and the whole car cost is reduced. Further, the off-board part has no electric element, the wading performance is excellent, and the practicability, stability, cost performance and the like of the whole car are greatly improved.
The action executing mechanism comprises an action control valve group 6 and an action oil cylinder 7, and an output port of the boarding pump 4 is connected with the action oil cylinder 7 through the action control valve group 6. Specifically, the action cylinder 7 comprises a boom telescopic cylinder, a boom luffing cylinder, a fly jib cylinder, an upper leveling cylinder and a lower leveling cylinder. In the working process, the on-board pump 4 conveys hydraulic oil to the action control valve group 6, and the hydraulic oil is controlled to enter different oil cylinders through opening and closing of the action control valve group 6, so that corresponding actions are completed.
The traveling mechanism comprises a traveling control valve group 8, a hydraulic motor 9 and wheels 10, wherein an output port of the get-off pump 5 is connected with the hydraulic motor 9 through the traveling control valve group 8, and an output shaft of the hydraulic motor 9 is connected with the wheels 10. Specifically, the four hydraulic motors 9 respectively connected with the traveling control valve group 8 are included, each hydraulic motor 9 is connected with a wheel 10, and the traveling control valve group 8 can respectively control the four hydraulic motors 9. The traveling control valve group 8 comprises a whole vehicle traveling valve and a tire steering valve. In the working process, the get-off pump 5 conveys hydraulic oil to the walking control valve group 8, the hydraulic oil is controlled to enter each hydraulic motor through opening and closing of the walking control valve group 8, and finally each wheel 10 is driven to act, and the respective control of each wheel 10 is realized.
In the high-voltage electric hydraulic driving system provided by the specific embodiment of the utility model, the output shaft of the high-voltage motor 3 is connected with the input shaft of the reduction gearbox, and the output shaft of the reduction gearbox is synchronously connected with the on-board pump 4 and the off-board pump 5. Preferably, the controller 2 is connected with the get-on pump 4 and the get-off pump 5, signals are transmitted to the pump bodies, the output shaft drives the two pump bodies to synchronously rotate, signals are transmitted to the get-on pump 4 and the get-off pump 5, the pump bodies absorb oil and return oil, the pump bodies work, if no signals exist, the pump bodies idle, the controller 2 is used for controlling the get-on pump 4 and the get-off pump 5 to absorb oil or idle, and the get-on pump 4 independently works, the get-off pump 5 independently works or the two pumps jointly work.
On the basis of the high-voltage hydraulic driving system provided by the above embodiments, the operating voltage range of the high-voltage battery 1 is 300V to 800V. Of course, the data parameters of the high-voltage battery 1 can be adjusted according to the situation, and all the parameters are within the protection scope of the utility model.
In addition to the high-voltage electric hydraulic driving system, the specific embodiment of the utility model also provides an overhead working truck comprising the high-voltage electric hydraulic driving system, and the structure of other parts of the overhead working truck is referred to the prior art, and is not repeated herein.
The high-voltage electric hydraulic driving system and the high-altitude operation vehicle provided by the utility model are described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (10)
1. The utility model provides a high-voltage electric liquid drive system, its characterized in that includes high-voltage battery (1), controller (2) and high-voltage motor (3), high-voltage battery (1) pass through controller (2) do high-voltage motor (3) provide the energy, high-voltage motor (3) are connected on-vehicle pump (4) and lower car pump (5) simultaneously, and can drive respectively on-vehicle pump (4) and lower car pump (5) work, the delivery outlet of on-vehicle pump (4) connect action actuating mechanism and to action actuating mechanism carries hydraulic oil, the delivery outlet of lower car pump (5) connect running gear and to running gear carries hydraulic oil.
2. The high-voltage electric hydraulic drive system according to claim 1, characterized in that the action executing mechanism comprises an action control valve group (6) and an action oil cylinder (7), and the output port of the boarding pump (4) is connected with the action oil cylinder (7) through the action control valve group (6).
3. The high-voltage electric hydraulic drive system according to claim 2, wherein the action cylinder (7) comprises a boom extension cylinder, a boom luffing cylinder, a fly jib cylinder, an upper leveling cylinder and a lower leveling cylinder.
4. The high-voltage electric hydraulic drive system according to claim 1, characterized in that the travelling mechanism comprises a travelling control valve group (8), a hydraulic motor (9) and wheels (10), the output port of the off pump (5) is connected with the hydraulic motor (9) through the travelling control valve group (8), and the output shaft of the hydraulic motor (9) is connected with the wheels (10).
5. The high-voltage electric hydraulic drive system according to claim 4, characterized by comprising four hydraulic motors (9) respectively connected to the running control valve group (8), each hydraulic motor (9) being connected to the wheel (10), the running control valve group (8) being capable of controlling the four hydraulic motors (9) respectively.
6. The high-voltage electric hydraulic drive system according to claim 5, characterized in that the travel control valve group (8) comprises a whole vehicle travel valve and a tire steering valve.
7. The high-voltage electric hydraulic drive system according to claim 1, characterized in that the output shaft of the high-voltage motor (3) is connected with the input shaft of a reduction gearbox, and the output shaft of the reduction gearbox is synchronously connected with the boarding pump (4) and the alighting pump (5).
8. The high-voltage electric hydraulic drive system according to claim 7, wherein the controller (2) is connected to the on-board pump (4) and the off-board pump (5) for controlling the on-board pump (4) and the off-board pump (5) to absorb oil or idle.
9. The high-voltage hydraulic drive system according to any one of claims 1 to 8, characterized in that the operating voltage of the high-voltage battery (1) ranges from 300V to 800V.
10. An aerial work vehicle comprising a high voltage electric hydraulic drive system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321879019.9U CN220245499U (en) | 2023-07-17 | 2023-07-17 | High-voltage electric hydraulic drive system and overhead working truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321879019.9U CN220245499U (en) | 2023-07-17 | 2023-07-17 | High-voltage electric hydraulic drive system and overhead working truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220245499U true CN220245499U (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321879019.9U Active CN220245499U (en) | 2023-07-17 | 2023-07-17 | High-voltage electric hydraulic drive system and overhead working truck |
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| Country | Link |
|---|---|
| CN (1) | CN220245499U (en) |
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2023
- 2023-07-17 CN CN202321879019.9U patent/CN220245499U/en active Active
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