CN115893206A - Electric drive lifting system - Google Patents
Electric drive lifting system Download PDFInfo
- Publication number
- CN115893206A CN115893206A CN202211437098.8A CN202211437098A CN115893206A CN 115893206 A CN115893206 A CN 115893206A CN 202211437098 A CN202211437098 A CN 202211437098A CN 115893206 A CN115893206 A CN 115893206A
- Authority
- CN
- China
- Prior art keywords
- gear box
- reversing gear
- driving motor
- lifting
- power
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Landscapes
- Transmission Devices (AREA)
Abstract
The application provides an electric drive lift system belongs to electric control drive technical field, and this electric drive lift system includes: power unit and the mechanical transmission mechanism who is connected with power unit, mechanical transmission mechanism is used for reversing to power unit's output torque, and carry out electric drive control's promotion to the pallet, through electric drive control, realize going up and down to the accurate controllable variable speed of pallet, guarantee that the pallet supports each point and goes up and down synchronously, utilize mechanical transmission mechanism, make the lift system structure compacter, improve the efficiency of preparing before the experiment, reduce the later maintenance cost of transmission medium factor, the suitability is high, the promotion precision of pallet has been improved.
Description
Technical Field
The application belongs to the technical field of power control drive, and particularly relates to a power drive lifting system.
Background
In the related art, the pallet of the test bed is lifted by a pneumatic cylinder or a hydraulic cylinder lifting system, and the lifting system has the following defects: compressed air or oil is adopted as a transmission medium, and the defect of low efficiency exists due to the resistance of the fluid medium; the compressed air or oil has compressibility, so that when the pressure intensity is uneven, the traveling speed is easy to lag, the lifting of each point of the following clamp is asynchronous, and the balance is seriously influenced; the working performance is easily influenced by the environmental temperature, is not suitable for working in high-temperature and low-temperature environments, and has low applicability; in order to ensure accurate transmission ratio, the manufacturing precision requirements of pneumatic elements and hydraulic elements are high, and the cost is high; the transmission medium is easy to leak, the troubleshooting is difficult, the later maintenance cost is high, and the like.
Disclosure of Invention
In order to solve the technical problems of low efficiency, low applicability, large transmission ratio error and high later maintenance cost of a pneumatic cylinder and a hydraulic cylinder lifting system in the related technology, the invention provides an electric drive lifting system, which adopts the following technical scheme:
an electrically driven hoist system comprising: a power mechanism and a mechanical transmission mechanism connected with the power mechanism,
the mechanical transmission mechanism is used for reversing the output torque of the power mechanism and lifting the follow fixture in an electric drive control mode.
Wherein, power unit includes: a driving motor, an absolute encoder and a motor frequency converter,
the driving motor is used as a power source and converts electric energy into mechanical energy; the absolute encoder is used for converting the rotation displacement of the driving motor into a pulse signal; the motor frequency converter is used for adjusting the rotating speed and the direction of the driving motor according to the pulse signal so as to enable the driving motor to operate in a variable speed mode.
Wherein, mechanical drive mechanism includes: the reversing gear box is connected with the driving motor and is used for adjusting the direction of the power output by the driving motor and increasing the transmission ratio; the reversing gear box is connected with the driving motor and the lifting element through a coupler; the pallet is placed on a lifting element, which is used to carry the pallet.
Wherein each lifting element comprises: an outer housing and a worm gear inside the housing.
Wherein, mechanical drive mechanism is symmetrical structure, including three switching-over gear boxes: the main reversing gear box is connected with the driving motor in a key connection mode, the main reversing gear box is connected with the left driven reversing gear box and the right driven reversing gear box through couplers, and the left driven reversing gear box and the right driven reversing gear box are connected with the lifting element through couplers;
the main reversing gear box is used for transmitting power to the left driven reversing gear box and the right driven reversing gear box through the coupler; the left driven reversing gear box and the right driven reversing gear box transmit power to the lifting element through the coupler.
Furthermore, the system also comprises a control mechanism, wherein the control mechanism is used for receiving a lifting instruction triggered by a user and sending the lifting instruction to an absolute encoder of the power mechanism, so that the absolute encoder obtains a corresponding pulse signal according to the input instruction; the motor frequency converter adjusts the rotating speed and the direction of the driving motor according to the pulse signal.
Further, the control mechanism is also used for receiving the actual rotating speed and direction of the driving motor sent by the absolute encoder of the power mechanism.
Wherein, the shell of the lifting element is connected with a positioning upright post through a bolt, and the positioning upright post is arranged in a ground positioning hole.
According to the electric drive lifting system, accurate controllable variable speed lifting of the pallet is achieved through electric drive control, synchronous lifting of supporting points of the pallet is guaranteed, the lifting system is more compact in structure due to the fact that a mechanical transmission mechanism is utilized, preparation efficiency before testing is improved, later maintenance cost of transmission medium factors is reduced, applicability is high, and lifting accuracy of the pallet is improved.
Drawings
Fig. 1 is a top view of an electric drive lift system according to an embodiment of the present disclosure;
FIG. 2 is a side view of an electrically driven lift system according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a reversing gearbox provided in an embodiment of the present application.
Detailed Description
The present application will now be described in further detail with reference to specific embodiments and the accompanying drawings.
In order to solve the problems of low efficiency, low applicability, large transmission ratio error, high later maintenance cost and the like of the traditional pneumatic cylinder and hydraulic cylinder lifting system, the invention provides an electric drive lifting system which comprises the following functions: a power mechanism, a mechanical transmission mechanism and a control mechanism. The system is a whole formed by a driving motor, a reversing gear box, a coupler, a lifting element, a handheld terminal and the like, can stably lift, and can more efficiently, more accurately and more safely complete the lifting of the follower fixture.
An embodiment of the present invention provides an electric drive lifting system, including: a power mechanism and a mechanical transmission mechanism,
the mechanical transmission mechanism is used for reversing the output torque of the power mechanism and performing lifting operation in the vertical direction on the follower fixture.
Wherein, power unit includes: the system comprises a driving motor, an absolute encoder and a motor frequency converter, wherein the driving motor is used as a power source and converts electric energy into mechanical energy; the absolute encoder is used for converting the rotation displacement of the driving motor into a pulse signal; the motor frequency converter is used for adjusting the rotating speed and the direction of the driving motor according to the pulse signal so as to enable the driving motor to operate in a variable speed mode.
The mechanical transmission mechanism includes: the reversing gear box is connected with the driving motor and is used for adjusting the direction of the power output by the driving motor and increasing the transmission ratio; the reversing gear box is connected with the driving motor and the lifting element through a coupler; the pallet is placed on the lifting element, the lifting element is used for bearing the pallet, and the plurality of lifting elements are lifted synchronously.
An embodiment of the present invention further provides another electric power driving lifting system, including: a power mechanism, a mechanical transmission mechanism and a control mechanism,
the power mechanism comprises a driving motor, an absolute encoder and a motor frequency converter, wherein the driving motor is used as a power source and converts electric energy into mechanical energy; the absolute encoder is used for converting the rotation displacement of the driving motor into a pulse signal; the motor frequency converter is used for adjusting the rotating speed and the direction of the driving motor according to the pulse signal, so that the driving motor operates in a variable speed mode, and accurate control is achieved. The absolute encoder in the embodiment does not need to have a memory function, internal and external data are refreshed and read, the absolute encoder does not depend on previous data reading, accumulated calculation of counting does not exist, interference of any factor is avoided, and control precision is improved.
In one implementation, the power mechanism may employ a 3kW, maximum torque transmission 196Nm drive motor as the power source.
The mechanical transmission mechanism may include: the reversing gear box, the coupler and the lifting element are shown in fig. 1 and fig. 2, wherein the reversing gear box 10 is connected with the driving motor 20 and is used for adjusting the direction of the power output by the driving motor 20 and increasing the transmission ratio; the reversing gear box 10 is connected with the driving motor 20 and the lifting element 30 through a coupler (not shown in the figure); pallet is placed on lifting element 30, lifting element 30 being intended to carry a pallet (not shown in the figures).
The mechanical transmission mechanism has a plurality of lifting elements which are lifted synchronously.
In another embodiment, the lifting element comprises an outer shell and a worm gear and a worm in the shell, the lifting element adopts a worm gear and worm structure to realize lifting movement in the vertical direction and realize power reversing, the worm gear and worm structure is compact and small, and the problem that the transmission medium of the traditional pneumatic cylinder and hydraulic cylinder is easily leaked due to the influence of environmental factors can be avoided. In addition, the worm gear structure can also increase the lifting stroke of the pallet.
For example, in practice, to ensure that the pallet is lifted to the appropriate height, the maximum stroke of the lifting element may be 50cm.
In another embodiment, the mechanical transmission utilizes a master-slave reversing gearbox to reverse the output torque of the drive motor. Mechanical drive mechanism adopts symmetrical structure, and it includes three switching-over gear boxes: a main reversing gearbox 101, a left driven reversing gearbox 102 and a right driven reversing gearbox 103, as shown in fig. 2 and 3. The main reversing gear box 101 is connected with a driving motor in a key connection mode, and the driving motor and the main reversing gear box can be tightly combined through four M10 bolts; the main reversing gear box 101 is connected with the left driven reversing gear box 102 and the right driven reversing gear box 103 through couplers, the structures of the left driven reversing gear box and the right driven reversing gear box are the same as those of the main reversing gear box, and the main reversing gear box is used for transmitting power to the left driven reversing gear box and the right driven reversing gear box through the couplers; the left driven reversing gear box and the right driven reversing gear box are connected with the lifting element through a coupler, and the left driven reversing gear box and the right driven reversing gear box transmit power to the lifting element through the coupler so that the lifting element can lift the traveling fixture.
Specifically, driving motor is as the input, applys rated revolution and drives a pair of helical gear rotation in the main reversing gear case through the key-type connection, and this a pair of helical gear rotates including initiative helical gear and driven helical gear, and the tooth number of initiative helical gear and driven helical gear is the same, and the equal proportion of initiative helical gear transmits driving motor's output rotational speed for driven helical gear, and driven helical gear adopts the gear shaft structure, realizes the dual output. The input rotating speed of the main reversing gear box drives the driving bevel gears of the left driven reversing gear box and the right driven reversing gear box to rotate through the shaft coupling, the shafts of the driven bevel gears of the left driven reversing gear box and the right driven reversing gear box transmit torque through a key connection mode with the shaft coupling, then the input end of the lifting element is driven to rotate, and lifting operation is carried out on the follower fixture.
Illustratively, the shell of the lifting element can be connected with a positioning upright post through a bolt, the positioning upright post is installed in a ground positioning hole and is leveled by using a level gauge, so that the horizontal heights of the initial positions of all the lifting elements can be ensured to be the same, and the problem that the lifting balance performance of the traditional pneumatic cylinder or hydraulic cylinder is poor is solved.
In one embodiment, the control mechanism of the present invention may include: the handheld terminal is used for receiving a lifting instruction triggered by a user and sending the lifting instruction to an absolute encoder of the power mechanism, so that the absolute encoder obtains a corresponding pulse signal according to the input instruction; and the motor frequency converter adjusts the rotating speed and the direction of the driving motor according to the pulse signal, so that the follow fixture is accurately lifted. Meanwhile, the handheld terminal is also used for receiving the actual rotating speed and direction of the driving motor sent by the absolute encoder of the power mechanism, so that the working personnel can adjust the driving motor conveniently, and the traveling fixture can be stably lifted.
The foregoing merely represents embodiments of the present application and the description is more specific and detailed, but it should not be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. In addition, the invention is not detailed in all conventional technologies.
Claims (8)
1. An electrically driven lift system, comprising: a power mechanism and a mechanical transmission mechanism connected with the power mechanism,
the mechanical transmission mechanism is used for reversing the output torque of the power mechanism and lifting the follow fixture in an electric drive control mode.
2. The system of claim 1, wherein the power mechanism comprises: a driving motor, an absolute encoder and a motor frequency converter,
the driving motor is used as a power source and converts electric energy into mechanical energy; the absolute encoder is used for converting the rotation displacement of the driving motor into a pulse signal; the motor frequency converter is used for adjusting the rotating speed and the direction of the driving motor according to the pulse signal so as to enable the driving motor to operate in a variable speed mode.
3. The system of claim 2, wherein the mechanical transmission comprises: the reversing gear box is connected with the driving motor and used for adjusting the direction of power output by the driving motor and increasing the transmission ratio; the reversing gear box is connected with the driving motor and the lifting element through a coupler; the pallet is placed on a lifting element, which is used to carry the pallet.
4. The system of claim 3, wherein each lifting element comprises: an outer housing and a worm gear inside the housing.
5. The system of claim 3, wherein the mechanical transmission is a symmetrical structure comprising three reversing gearboxes: the main reversing gear box is connected with the driving motor in a key connection mode, the main reversing gear box is connected with the left driven reversing gear box and the right driven reversing gear box through couplers, and the left driven reversing gear box and the right driven reversing gear box are connected with the lifting element through couplers;
the main reversing gear box is used for transmitting power to the left driven reversing gear box and the right driven reversing gear box through the coupler; the left driven reversing gear box and the right driven reversing gear box transmit power to the lifting element through the coupler.
6. The system as claimed in claim 2, further comprising a control mechanism, wherein the control mechanism is configured to receive a lifting command triggered by a user, and send the lifting command to the absolute encoder of the power mechanism, so that the absolute encoder obtains a corresponding pulse signal according to the input command; the motor frequency converter adjusts the rotating speed and the direction of the driving motor according to the pulse signal.
7. The system of claim 6, wherein the control mechanism is further configured to receive an actual speed and direction of the drive motor from an absolute encoder of the powered mechanism.
8. System according to claim 4, characterized in that the housing of the lifting element is connected by means of bolts with positioning uprights, which are fitted into ground positioning holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211437098.8A CN115893206A (en) | 2022-11-18 | 2022-11-18 | Electric drive lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211437098.8A CN115893206A (en) | 2022-11-18 | 2022-11-18 | Electric drive lifting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115893206A true CN115893206A (en) | 2023-04-04 |
Family
ID=86476013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211437098.8A Pending CN115893206A (en) | 2022-11-18 | 2022-11-18 | Electric drive lifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115893206A (en) |
-
2022
- 2022-11-18 CN CN202211437098.8A patent/CN115893206A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115893206A (en) | Electric drive lifting system | |
| KR101391412B1 (en) | Device for testing planitary gear box | |
| CN209620154U (en) | A kind of hollow shaft motor direct-drive type dipper crowding gear and large excavator | |
| CN106894939B (en) | Trunnion axis energy by ocean current generating set and its gearbox | |
| CN207819667U (en) | A kind of jack device that rimless combination type permanent-magnet linear synchronous motor directly drives | |
| CN202784868U (en) | Hydraulic transmission type manipulator code molding machine | |
| CN212645829U (en) | Crude oil water-containing flow meter convenient to disassemble | |
| CN112968585B (en) | High-reduction-ratio harmonic magnetic gear reducer with torque measurement capability | |
| CN102251946A (en) | Wind energy water pump | |
| CN112050890A (en) | Crude oil water-containing flow meter convenient to disassemble | |
| CN214455774U (en) | Liftable cable drum device | |
| CN111332972B (en) | Concealed planetary gear box for winch | |
| CN205257846U (en) | Novel frequency conversion of swing arm tower machine is risen to rise device | |
| CN210464925U (en) | Gear precision loading detection table | |
| CN204588381U (en) | A kind of lifting table | |
| CN207819665U (en) | A kind of jack device that no frame permanent magnet synchronous motor directly drives | |
| CN218445868U (en) | New energy automobile motor assembly test bench | |
| CN101865083B (en) | Separation type stepless driving power generating device | |
| CN219119367U (en) | Water guide mechanism of hydraulic generator | |
| CN220650702U (en) | Wireless transmission type self-generating wind direction and wind speed detection device | |
| CN218765984U (en) | Torque loading device of electric mechanism | |
| CN203624897U (en) | Modularized internal deceleration type drilling winch | |
| CN108233618A (en) | The jack device that a kind of no frame permanent magnet synchronous motor directly drives | |
| CN221075115U (en) | Dual-motor input gearbox of electric loader | |
| CN113915376B (en) | Transmission converter of digital valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |