CN207715448U - Lift work equipment and its dynamical system - Google Patents
Lift work equipment and its dynamical system Download PDFInfo
- Publication number
- CN207715448U CN207715448U CN201721657294.0U CN201721657294U CN207715448U CN 207715448 U CN207715448 U CN 207715448U CN 201721657294 U CN201721657294 U CN 201721657294U CN 207715448 U CN207715448 U CN 207715448U
- Authority
- CN
- China
- Prior art keywords
- controller
- permanent magnet
- magnet synchronous
- synchronous motor
- work equipment
- 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.)
- Active
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model discloses a kind of lift work equipment and its dynamical systems.Dynamical system includes that permanent magnet synchronous motor, hydraulic pump, hydraulic actuator, control handle, controller and accumulator, permanent magnet synchronous motor are connect with hydraulic pump driving；Hydraulic pump provides the pressure oil needed for execution action by oil circuit for hydraulic actuator, and solenoid directional control valve is provided in oil circuit；Control handle is for exporting operation signal to controller；Controller is connect with the control terminal of permanent magnet synchronous motor, solenoid directional control valve, controller is used to control signal to permanent magnet synchronous motor according to operation signal output motor to adjust its rotating speed and/or torque, and controller exports the action that valve control signal controls hydraulic actuator to solenoid directional control valve according to operation signal；Accumulator is used for as permanent magnet synchronous motor, control handle, controller, solenoid directional control valve power supply.The utility model can reduce the weight of lift work equipment, improve operating efficiency, operating time is improved under same battery capacity.
Description
Technical field
The utility model belongs to the technical field of lift work machinery.
Background technology
Currently, existing lift work equipment such as ascending platform Operation Van, high-altitude operation vehicle, fork truck etc., generally passes through
Hydraulic system carries out lift work, and prime mover of hydraulic system is generally motor or internal combustion engine.Due to increasingly strict ring
Guaranteed request, motorized have been increasingly becoming development trend.Motor used in existing lift work equipment is usually asynchronous excitation
Motor, there are volumes, and big, weight weighs, the disadvantages such as small, power factor is low, efficiency is low is lost.Especially in Mobile lifting
On implement, since the capacitance of accumulator is limited, if motor weight is excessive or less efficient, equipment can be influenced
Operating time reduces operating efficiency.In addition, if to realize the energy regenerating of hydraulic system, it is also necessary to it is further provided with generator,
Main screw lift is not only increased in this way, also adds complete machine cost.
Utility model content
The purpose of this utility model is that avoiding in the prior art insufficient and providing a kind of lift work equipment and its dynamic
Force system, to solve the problems, such as existing lift work equipment, there are at least one.
The purpose of this utility model is achieved through the following technical solutions：
On the one hand, the utility model provides a kind of lift work equipment dynamic system, including permanent magnet synchronous motor, hydraulic pressure
Pump, hydraulic actuator, control handle, controller and accumulator, wherein：The motor shaft and hydraulic pump of the permanent magnet synchronous motor
Pump shaft be sequentially connected；The hydraulic pump provides the pressure oil needed for execution action by oil circuit for hydraulic actuator, described
Solenoid directional control valve is provided in oil circuit；The control handle is connect with controller, and the control handle is for exporting operation signal
To controller；The controller is connect with the control terminal of permanent magnet synchronous motor, solenoid directional control valve, and the controller is used for according to institute
It states operation signal output motor and controls signal to the permanent magnet synchronous motor to adjust its rotating speed and/or torque, the controller
The action that valve control signal controls hydraulic actuator to solenoid directional control valve is exported according to the operation signal；The accumulator
For powering for permanent magnet synchronous motor, control handle, controller, solenoid directional control valve.
Lift work equipment dynamic system provided by the utility model, including permanent magnet synchronous motor, hydraulic pump, hydraulic pressure execute
Element, control handle, controller and accumulator, the wherein pump shaft of the motor shaft of permanent magnet synchronous motor and hydraulic pump are sequentially connected,
For driving hydraulic pump rotation to generate pressure oil；The hydraulic pump is provided for hydraulic actuator needed for execution action by oil circuit
Pressure oil, solenoid directional control valve is provided in the oil circuit, solenoid directional control valve is used to control the action of hydraulic actuator；It is described
Control handle is connect with controller, and the control handle is for exporting operation signal to controller；The controller and permanent magnetism are same
The control terminal connection of motor, solenoid directional control valve is walked, the controller is used to control signal according to the operation signal output motor
To the permanent magnet synchronous motor to adjust its rotating speed and/or torque, meanwhile, the controller is according to the operation signal delivery valve
Control signal controls the action of hydraulic actuator to solenoid directional control valve；The accumulator is used for as permanent magnet synchronous motor, control
Handle processed, controller, solenoid directional control valve power supply.Since permanent magnet synchronous motor has simple in structure, small, light-weight, loss
The advantages that small, efficient, power factor is high, it is possible to reduce the weight of lift work equipment improves operating efficiency, in same electricity
Operating time is improved under tankage.
As a further improvement, further include charging circuit, the permanent magnet synchronous motor passes through charging circuit and accumulator
Connection.When the decentralization of the job platform of lift work equipment, job platform is transferred automatically under gravity, in decentralization process
Drive hydraulic actuator, hydraulic actuator hydraulic pump can be driven to rotate, hydraulic pump drives permanent magnet synchronous motor rotation.Due to
Permanent magnet synchronous motor can not only be used for motor, also can be used as generator, and permanent magnet synchronous motor is as generator at this time, and by filling
Circuit to charge the battery, can realize energy regenerating by simple and at low cost structure in this way, reduce use cost,
It is more environmentally-friendly.
As a further improvement, the controller collection is at being set on permanent magnet synchronous motor.Since controller collection is at setting
It is placed on permanent magnet synchronous motor, the length of control circuit can be reduced, reduce cost.In addition, vehicle only needs a controller, collection
It is high at degree, it can further reduce the cost.
As a further improvement, the controller includes entire car controller, electric machine controller, the control handle output
Operation signal exports valve control signal to solenoid directional control valve to control to entire car controller, the entire car controller according to operation signal
The action of hydraulic actuator processed, also, the entire car controller exports control signal according to the operation signal and gives motor control
Device processed, the electric machine controller control signal to the permanent magnet synchronous motor to adjust its turn according to the control signal output motor
Speed and/or torque.Since controller is using entire car controller, the decentralized control of electric machine controller, control interference can be reduced,
Improve control reliability.
As a further improvement, the electric machine controller is integrally disposed on permanent magnet synchronous motor.Since motor controls
Device is integrally disposed on permanent magnet synchronous motor, can reduce the length of the control circuit of permanent magnet synchronous motor, reduce cost.
On the other hand, the utility model provides a kind of lift work equipment, including mobile chassis, lifting arm, job platform,
The job platform by lifting arm be mounted on mobile chassis on, include according to claim to any one of described in lifting make
Industry equipment dynamic system, the hydraulic actuator of the dynamical system is for driving lifting arm to lift.
As a further improvement, the lifting arm is scissor arms；The hydraulic actuator is that driving scissor arms fold
Or the oil cylinder of stretching, extension.
As a further improvement, the lift work equipment is ascending platform Operation Van.
Lift work equipment provided by the utility model should have and above-mentioned power due to using above-mentioned dynamical system
The identical advantageous effect of system, therefore be no longer described in detail.
Description of the drawings
Using attached drawing, the utility model is described in further detail, but the embodiment in attached drawing is not constituted to the utility model
Any restrictions for those of ordinary skill in the art without creative efforts, can also be according to following attached
Figure obtains other attached drawings.
Fig. 1 is the schematic diagram of lift work equipment dynamic system embodiment one.
Fig. 2 is the schematic diagram of lift work equipment dynamic system embodiment two.
Fig. 3 is the structural schematic diagram of lift work equipment.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model, it should be noted that in the absence of conflict, the application's
Feature in embodiment and embodiment can be combined with each other.
As shown in Figure 1, the lift work equipment dynamic system that the utility model embodiment one provides, including permanent magnet synchronous electric
Machine 1, hydraulic pump 2, hydraulic actuator 3, control handle 4, controller 5 and accumulator 6, fuel tank 9.Wherein permanent magnet synchronous motor 1
The pump shaft of motor shaft and hydraulic pump 2 be sequentially connected, for driving hydraulic pump 2 to rotate, feed flow is generated to extract fluid in fuel tank 9
The pressure oil for pressing executive component 3 to work；The hydraulic pump 2 is that hydraulic actuator 3 is provided needed for execution action by oil circuit
Pressure oil, solenoid directional control valve 7 is provided in the oil circuit, and solenoid directional control valve 7 is used to control the action of hydraulic actuator 3；Institute
It states control handle 4 to connect with controller 5, the control handle 4 is for exporting operation signal to controller 5；The controller 5 with
The control terminal connection of permanent magnet synchronous motor 1, solenoid directional control valve 7, the controller 5 are used for according to the operation signal output motor
Signal is controlled to the permanent magnet synchronous motor 1 to adjust its rotating speed and/or torque, motor control signal is mainly regulation motor
Input current, meanwhile, the controller 5 is used to export valve control signal to solenoid directional control valve 7 according to the operation signal to control
Solenoid directional control valve 7 processed commutates, to control the action of hydraulic actuator 3；The accumulator 6 is used for as permanent magnet synchronous motor 1, control
Handle 4 processed, controller 5, solenoid directional control valve 7 are powered, wherein direct current can be carried out inversion conclusion of the business by accumulator 6 by inverter
Galvanic electricity is powered for permanent magnet synchronous motor 1.Permanent magnet synchronous motor is the synchronous motor that synchronous rotary magnetic field is generated by permanent magnet excitation,
When stator side is passed through three-phase symmetrical electric current, since threephase stator differs on spatial position, so threephase stator electric current is in space
Middle generation rotating excitation field is moved by electromagnetic force in PM rotor rotating excitation field, and electric energy is converted into kinetic energy, permanent magnetism at this time
Synchronous motor is used as motor.In addition, permanent magnet generates rotating excitation field as rotor, threephase stator winding is acted in rotating excitation field
Down by armature-reaction, three-phase symmetrical electric current is incuded, rotor kinetic energy is converted into electric energy at this time, and permanent magnet synchronous motor makees generator
With.Due to permanent magnet synchronous motor have many advantages, such as it is simple in structure, it is small, light-weight, loss is small, efficient, power factor is high,
Relative to asynchronous machine, it is possible to reduce the weight of lift work equipment improves efficiency, work is improved under same battery capacity
Duration.
Further include charging circuit 8 as further preferred embodiment, the permanent magnet synchronous motor 1 passes through the electricity that charges
Road 8 is connect with accumulator 6, and charging circuit 8 includes rectification, filtering, regulating circuit, is generated to which permanent magnet synchronous motor 1 generate electricity
Alternating current be changed into setting voltage direct current charge to accumulator 6.When the job platform of lift work equipment is transferred
When, job platform is transferred automatically under gravity, hydraulic actuator 3 is driven in decentralization process, hydraulic actuator 3 can
Hydraulic pump 2 is driven to rotate, hydraulic pump 2 drives permanent magnet synchronous motor 1 to rotate, since permanent magnet synchronous motor 1 can not only be used for motor,
Also generator is can be used as, permanent magnet synchronous motor 1 is used as generator at this time, and charges for accumulator 6 by charging circuit 8.In this way
Energy regenerating can be realized by simple structure, reduce use cost, it is also more environmentally-friendly.It, can when permanent magnet synchronous motor 1 generates electricity
By the commutation of solenoid directional control valve 7, make the oil return of hydraulic actuator 3 pass through hydraulic pump 2 drive permanent magnet synchronous motor 1 rotate forward or
Reversion generates electricity.
As further preferred embodiment, the controller 5 is integrally disposed on permanent magnet synchronous motor 1.Due to control
Device 5 processed is integrally disposed on permanent magnet synchronous motor 1, can reduce the length of control circuit, reduce cost.In addition, vehicle only needs
One controller, integrated level is high, can further reduce the cost.
As shown in Fig. 2, the lift work equipment dynamic system that the utility model embodiment two provides, including permanent magnet synchronous electric
Machine 1, hydraulic pump 2, hydraulic actuator 3, control handle 4, controller 5 and accumulator 6, fuel tank 9.Wherein permanent magnet synchronous motor 1
The pump shaft of motor shaft and hydraulic pump 2 be sequentially connected, for driving hydraulic pump 2 to rotate, feed flow is generated to extract fluid in fuel tank 9
The pressure oil for pressing executive component 3 to work；The hydraulic pump 2 is that hydraulic actuator 3 is provided needed for execution action by oil circuit
Pressure oil, solenoid directional control valve 7 is provided in the oil circuit, and solenoid directional control valve 7 is used to control the action of hydraulic actuator 3；Institute
Control handle 4 is stated to connect with controller 5；The controller 5 includes entire car controller 51, electric machine controller 52, the control hand
Handle 4 exports operation signal to entire car controller 51, and the entire car controller 51 is used to be controlled according to the operation signal delivery valve
Signal is to solenoid directional control valve 7 to control the commutation of solenoid directional control valve 7, and then the action of control hydraulic actuator 3；Also, it is described
Entire car controller 51 is used to export control signal to electric machine controller 52 according to the operation signal, and the electric machine controller 52 is used
According to the control signal output motor control signal to the permanent magnet synchronous motor 1 to adjust its rotating speed and/or torque.It is described
Accumulator 6 is used to power for permanent magnet synchronous motor 1, control handle 4, controller 5, solenoid directional control valve 7, and accumulator 6 can be by inverse
Direct current be reverse into exchanging and be powered into permanent magnet synchronous motor 1 by change device.Difference lies in controls with embodiment one for embodiment two
Device can be reduced control interference, be improved the reliable of control in this way using entire car controller, the decentralized control of electric machine controller
Property.
As further preferred embodiment, the electric machine controller 52 is integrally disposed on permanent magnet synchronous motor 1.By
It is integrally disposed on permanent magnet synchronous motor 1 in electric machine controller 52, the length of control circuit can be reduced, cost is reduced.
As shown in figure 3, the utility model embodiment also provides a kind of lift work equipment, the lift work equipment is to step on
High platform Operation Van comprising mobile chassis 10, lifting arm 11, job platform 12, the job platform 12 pass through lifting arm 11
On mobile chassis 10, the lifting arm 11 is scissor arms, and job platform 12 is realized by the folding or stretching, extension of scissor arms
Lifting.The present embodiment further includes lift work equipment dynamic system 13 as described above, and the hydraulic pressure of the dynamical system 13 executes
Element 3 is for driving lifting arm 11 to fold or stretch, and to drive job platform 12 to lift, the hydraulic actuator 3 is specific
The oil cylinder for folding or stretching for driving scissor arms.
The lift work equipment that the utility model embodiment provides is due to using above-mentioned dynamical system, dynamical system and reality
It is identical to apply example one, the operation principle of dynamical system in embodiment two, and should have identical with above-mentioned dynamical system beneficial
Effect, therefore be no longer described in detail.
Many details are elaborated in above description in order to fully understand the utility model, still, this practicality is new
Type can also be implemented using other different from other modes described here, it is thus impossible to be interpreted as protecting the utility model
Protect the limitation of range.
In short, although the utility model lists above-mentioned preferred embodiment, although it should be noted that the skill of this field
Art personnel can carry out various change and remodeling, unless such variation and remodeling deviate from the scope of the utility model, otherwise
It should be construed as being included in the scope of protection of the utility model.
Claims (9)
1. a kind of lift work equipment dynamic system, it is characterised in that：Including permanent magnet synchronous motor (1), hydraulic pump (2), hydraulic pressure
Executive component (3), control handle (4), controller (5) and accumulator (6), wherein：
The motor shaft of the permanent magnet synchronous motor (1) is sequentially connected with the pump shaft of hydraulic pump (2)；
The hydraulic pump (2) is that hydraulic actuator (3) provides execution action required pressure oil by oil circuit, in the oil circuit
It is provided with solenoid directional control valve (7)；
The control handle (4) connect with controller (5), and the control handle (4) is for exporting operation signal to controller
(5)；
The controller (5) connect with the control terminal of permanent magnet synchronous motor (1), solenoid directional control valve (7), and the controller (5) is used
According to the operation signal output motor control signal to the permanent magnet synchronous motor (1) to adjust its rotating speed and/or torque,
The controller (5) is used to export valve control signal to solenoid directional control valve (7) according to the operation signal to control hydraulic pressure execution
The action of element (3)；
The accumulator (6) is used to supply for permanent magnet synchronous motor (1), control handle (4), controller (5), solenoid directional control valve (7)
Electricity.
2. lift work equipment dynamic system according to claim 1, it is characterised in that：Further include charging circuit (8), institute
Permanent magnet synchronous motor (1) is stated to connect with accumulator (6) by charging circuit (8).
3. lift work equipment dynamic system according to claim 1 or 2, it is characterised in that：The controller (5) is integrated
It is set on permanent magnet synchronous motor (1).
4. lift work equipment dynamic system according to claim 1 or 2, it is characterised in that：The controller (5) includes
Entire car controller (51), electric machine controller (52), the control handle (4) export operation signal and give entire car controller (51), institute
Entire car controller (51) is stated to hold to control hydraulic pressure to solenoid directional control valve (7) for exporting valve control signal according to the operation signal
The action of units (3), also, the entire car controller (51) is used to export control signal to motor according to the operation signal
Controller (52), the electric machine controller (52) are used to control signal to the permanent-magnet synchronous according to the control signal output motor
Motor (1) is to adjust its rotating speed and/or torque.
5. lift work equipment dynamic system according to claim 4, it is characterised in that：Electric machine controller (52) collection
At being set on permanent magnet synchronous motor (1).
6. a kind of lift work equipment, including mobile chassis (10), lifting arm (11), job platform (12), the job platform
(12) it is mounted on mobile chassis (10) by lifting arm (11), it is characterised in that：Including according to any in claim 1 to 5
The hydraulic actuator (3) of lift work equipment dynamic system (13) described in, the dynamical system (13) rises for driving
Arm (11) is dropped to lift.
7. lift work equipment according to claim 6, it is characterised in that：The lifting arm (11) is scissor arms.
8. lift work equipment according to claim 7, it is characterised in that：The hydraulic actuator (3) is that driving is cut
Yoke folds or the oil cylinder of stretching, extension.
9. the lift work equipment described according to claim 6 or 7 or 8, it is characterised in that：The lift work equipment is to ascend a height
Platform operations vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721657294.0U CN207715448U (en) | 2017-12-03 | 2017-12-03 | Lift work equipment and its dynamical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721657294.0U CN207715448U (en) | 2017-12-03 | 2017-12-03 | Lift work equipment and its dynamical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207715448U true CN207715448U (en) | 2018-08-10 |
Family
ID=63058162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721657294.0U Active CN207715448U (en) | 2017-12-03 | 2017-12-03 | Lift work equipment and its dynamical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207715448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906063A (en) * | 2017-12-03 | 2018-04-13 | 长沙汽电汽车零部件有限公司 | Lift work equipment and its dynamical system |
-
2017
- 2017-12-03 CN CN201721657294.0U patent/CN207715448U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906063A (en) * | 2017-12-03 | 2018-04-13 | 长沙汽电汽车零部件有限公司 | Lift work equipment and its dynamical system |
| CN107906063B (en) * | 2017-12-03 | 2024-05-14 | 长沙汽电汽车零部件有限公司 | Lifting operation equipment and power system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100386254C (en) | Electric fork track lifting control system possessing energy recovery device | |
| CN100386956C (en) | Electromagnetic coupling variable-speed drive system | |
| CN102826000B (en) | Vehicle hybrid system and container stacking machine | |
| CN107420384A (en) | Lifting device gravitional force P-V storage system | |
| CN201626316U (en) | Brushless double-fed motor driving device of electric automobile | |
| CN109057346A (en) | Pump truck | |
| CN102501849A (en) | Driving and energy recycling system for hybrid forklift | |
| CN103552457B (en) | Oil/electric hybrid rotary drilling rig driving system | |
| CN102318181A (en) | Hybrid shovel | |
| CN103066897A (en) | Electromotor energy storage braking system and control method | |
| EP2733007A1 (en) | A hybrid working machine providing or receiving electrical power | |
| CN209211906U (en) | Pump truck | |
| CN103697023A (en) | Electro-hydraulic energy recovery and release system for slewing brake of engineering machinery | |
| CN107128494A (en) | A kind of unmanned plane of oil electricity mixing | |
| CN106545548A (en) | Many pump multi-motor durability test devices and method based on common DC bus technology | |
| CN207715448U (en) | Lift work equipment and its dynamical system | |
| CN107906063A (en) | Lift work equipment and its dynamical system | |
| CN209040568U (en) | Pump truck | |
| CN208279268U (en) | A kind of fork truck energy saving system with speed-regulating function | |
| CN103183296B (en) | Pump motor cataclinal power generation control system | |
| CN103437392B (en) | Hybrid power hydraulic excavator system and using method | |
| CN101286678A (en) | Servo-system of nesting permanent magnetic synchronous motor and operating control method | |
| CN102080675B (en) | Wheeled crane and hydraulic control system and pump/motor control circuit thereof | |
| CN101286680A (en) | Servo-system of duplex permanent magnetism synchronous motor and operating control method thereof | |
| WO2020078041A1 (en) | Pump truck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |