CN116730196A - Variable frequency control system of workpiece lifting travelling crane motor - Google Patents

Variable frequency control system of workpiece lifting travelling crane motor Download PDF

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Publication number
CN116730196A
CN116730196A CN202310716524.XA CN202310716524A CN116730196A CN 116730196 A CN116730196 A CN 116730196A CN 202310716524 A CN202310716524 A CN 202310716524A CN 116730196 A CN116730196 A CN 116730196A
Authority
CN
China
Prior art keywords
control system
variable frequency
frequency control
box
sides
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
Application number
CN202310716524.XA
Other languages
Chinese (zh)
Inventor
张绳昭
孙旭初
任卫锋
孙大海
胡光平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANHUI HONGYUAN IRON TOWER CO LTD
Original Assignee
ANHUI HONGYUAN IRON TOWER CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ANHUI HONGYUAN IRON TOWER CO LTD filed Critical ANHUI HONGYUAN IRON TOWER CO LTD
Priority to CN202310716524.XA priority Critical patent/CN116730196A/en
Publication of CN116730196A publication Critical patent/CN116730196A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0234—Feet; Stands; Pedestals, e.g. wheels for moving casing on floor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20172—Fan mounting or fan specifications
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

The application provides a variable frequency control system of a workpiece lifting crane motor, which comprises the following components: setting a box; a fan is arranged in the middle of the inside of the mounting seat, communication holes are formed in the tops of two sides of the outer surface of the mounting seat, a sliding cavity is formed in the middle of the inner cavity wall of the communication holes, and elastic devices are fixedly arranged on two sides of the inner cavity of the sliding cavity; the limiting device is sleeved on the outer surface of the elastic device, and embedded grooves are formed in the bottoms of the two sides of the outer surface of the setting box. The application provides a variable frequency control system of a workpiece lifting crane motor, which is characterized in that a setting box, an elastic device and a limiting device are matched with each other, the setting box can be quickly assembled at the bottom of the inside of a mounting seat, and air blown out by a fan dissipates heat of a control system inside the setting box.

Description

Variable frequency control system of workpiece lifting travelling crane motor
Technical Field
The application relates to the field of workpiece lifting travelling crane, in particular to a variable frequency control system of a workpiece lifting travelling crane motor.
Background
Bridge cranes have found very wide application in industrial processes for transporting loads to desired locations.
The remote control crane belongs to a hanging type single-beam crane, the electric appliance control is simple forward and reverse speed regulation-free control, when a heavy load is lifted, the crane is enabled to swing greatly due to inertia during starting and stopping, a hanging tug and a transmission mechanism are pulled and pulled strongly, the damage to equipment is large, the service life of the equipment is influenced, and the frequent faults occur: the motor burns out, the steel rope goes out the groove, limit is strutted and moves, the rope guide damages, steel rope strand breakage or fracture, hook head damage, hangs thing and falls etc. and causes threat to operating personnel's personal safety, takes place the personal casualty accident easily, exists very big potential safety hazard.
The existing crane motor adopts variable frequency control, the variable frequency speed-regulating motor is a generic name of a motor driven by a frequency converter, the motor designed for the frequency converter is actually a special variable frequency motor, the motor can realize different rotating speeds and torques under the driving of the frequency converter, the insulation performance of a motor winding is improved, the variable frequency control system is generally arranged in a control box body of the crane, the internal control system is radiated by a cooling fan, but the cooling device and the control system are integrally arranged in a car body, and the maintenance is not easy to disassemble.
Therefore, it is necessary to provide a variable frequency control system for a workpiece lifting crane motor to solve the above technical problems.
Disclosure of Invention
The application provides a variable frequency control system of a workpiece lifting crane motor, which solves the problems that the variable frequency control system is generally arranged in a control box body of a crane, the internal control system is radiated by a radiating fan, but a radiating device and the control system are integrally arranged in a car body, and the maintenance is difficult to disassemble.
In order to solve the technical problems, the application provides a variable frequency control system of a workpiece lifting crane motor, which comprises: setting a box;
the mounting seat is internally provided with a fan in the middle, communication holes are formed in the tops of two sides of the outer surface of the mounting seat, a sliding cavity is formed in the middle of the inner cavity wall of the communication holes, and elastic devices are fixedly arranged on two sides of the inner cavity of the sliding cavity;
and the limiting device is sleeved on the outer surface of the elastic device, and embedded grooves are formed in the bottoms of the two sides of the outer surface of the setting box.
Preferably, the elastic device comprises a sliding rod, and a first spring is sleeved on the outer surface of the sliding rod.
Preferably, the limiting device comprises a limiting rod, an extrusion surface is arranged on the surface of one end of the limiting rod, and an extrusion plate is fixedly arranged on one side of the outer surface of the limiting rod.
Preferably, the mounting seat comprises a mounting block, a setting groove is formed in the middle of the top of the mounting block, a stop block is fixedly arranged at the top of an inner cavity of the setting groove, and air inlets are formed in two sides of the outer surface of the mounting block.
Preferably, a remote controller, a frequency converter, a motor, a remote control receiver and a signal conversion device are arranged in the setting box.
The user will set up the inside of box downward embedding setting up the groove, set up the extrusion face downwardly moving of box bottom downwardly extrusion gag lever post, extrude the gag lever post to the inside of intercommunicating pore, the gag lever post drives the stripper plate and slides, the stripper plate is extruding first spring.
When the bottom of the setting box is placed on the stop block, the embedded groove is communicated with the communication hole, the elastic force of the first spring is used for pushing out the extrusion plate, the limiting rod is driven to be embedded into the embedded groove, and the setting box is limited in the installation seat.
When the box is disassembled, the limit rods at the left side and the right side are pulled out from the limit rods at the left side and the right side respectively, so that the limit rods are moved out of the embedded groove, the set box and the mounting seat are separated, and a user can maintain the set box or the mounting seat independently.
Preferably, the bottom of installation piece surface both sides is all fixed mounting has the fixed block, one side of fixed block inside is provided with drive arrangement, one side at fixed block top is provided with collection device, the top fixed mounting of installation piece surface both sides has the connecting block, drive arrangement's surface screw thread engagement has cleaning device.
Preferably, the driving device comprises a servo motor, and an output shaft of the servo motor is fixedly connected with a threaded rod.
Preferably, the cleaning device comprises a moving plate, a threaded hole is formed in one side of the moving plate, and a push rod is fixedly mounted at the bottom of one side of the outer surface of the moving plate.
Preferably, the collecting device comprises a collecting box, a collecting groove is formed in the middle of the top of the collecting box, a turning plate is rotatably connected to one side of the top of the inner cavity of the collecting groove, and a spring is arranged on one side of the turning plate.
Preferably, the bottom of the collecting box is provided with an iron sheet, and the side surface of the top of the fixed block is fixedly provided with a magnet.
Compared with the related art, the variable frequency control system of the workpiece lifting travelling crane motor has the following beneficial effects:
the application provides a variable frequency control system of a workpiece lifting crane motor, which is characterized in that a setting box, an elastic device and a limiting device are matched with each other, the setting box can be quickly assembled at the bottom of the inside of a mounting seat, and air blown out by a fan dissipates heat of a control system inside the setting box.
The application provides a variable frequency control system of a workpiece lifting crane motor, which is characterized in that a driving device, a cleaning device and a collecting device are matched with each other, so that dust adsorbed on the surface of an air inlet hole can be scraped and an extrusion turning plate is opened, the dust is guided into the collecting tank to be collected.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a variable frequency control system for a workpiece handling crane motor provided by the application;
FIG. 2 is an enlarged schematic view of the portion A shown in FIG. 1;
fig. 3 is a schematic structural diagram of a second embodiment of a variable frequency control system of a workpiece lifting crane motor provided by the application;
FIG. 4 is an enlarged schematic view of the portion B shown in FIG. 3;
fig. 5 is a schematic view of the driving device shown in fig. 4.
Reference numerals in the drawings: 1. the device comprises a setting box, 2, a remote controller, 3, a frequency converter, 4, a motor, 5, a remote control receiver, 6, a signal conversion device, 7, a mounting seat, 71, a mounting block, 72, a setting groove, 73, an air inlet, 74, a stop block, 8, a communication hole, 9, a sliding cavity, 10, an elastic device, 101, a sliding rod, 102, a first spring, 11, a limiting device, 111, a limiting rod, 112, a squeezing plate, 113, a squeezing surface, 12, an embedded groove, 13, a fixed block, 14, a driving device, 141, a servo motor, 142, a threaded rod, 15, a connecting block, 16, a cleaning device, 161, a moving plate, 162, a threaded hole, 163, a push rod, 17, a collecting device, 171, a collecting box, 172, a collecting groove, 173, a turning plate, 174, a second spring, 18 and a heat dissipation hole.
Detailed Description
The application will be further described with reference to the drawings and embodiments.
Referring to fig. 1 and fig. 2 in combination, fig. 1 is a schematic structural diagram of a first embodiment of a variable frequency control system for a workpiece lifting crane motor according to the present application; fig. 2 is an enlarged schematic view at a shown in fig. 1. A variable frequency control system for a workpiece handling trolley motor, comprising: a setting box 1;
the mounting seat 7, a fan is arranged in the middle of the inside of the mounting seat 7, communication holes 8 are formed in the tops of two sides of the outer surface of the mounting seat 7, a sliding cavity 9 is formed in the middle of the inner cavity wall of the communication holes 8, and elastic devices 10 are fixedly arranged on two sides of the inner cavity of the sliding cavity 9;
the limiting device 11 is sleeved on the outer surface of the elastic device 10, and embedded grooves 12 are formed in the bottoms of the two sides of the outer surface of the setting box 1.
The fan is controlled to rotate by the output shaft of the motor, and air is blown into the inside of the setting box 1 through the air inlet 73 and the heat dissipation hole 18 at the bottom.
Two communication holes 8 are respectively formed in the tops of the left side and the right side of the outer surface of the mounting seat 7, and a limiting rod 111 is arranged in the communication holes 8.
The elastic device 10 comprises a sliding rod 101, and a first spring 102 is sleeved on the outer surface of the sliding rod 101.
The left and right ends of the slide bar 101 are respectively fixed at the left and right sides of the inner cavity of the slide cavity 9, one end of the first spring 102 is connected with the inner wall of the slide cavity 9, the other end is connected with the extrusion plate 112, and the elastic restoring force of the first spring 102 pushes the extrusion plate 112 into the setting groove 72.
The limiting device 11 comprises a limiting rod 111, an extrusion surface 113 is arranged on the surface of one end of the limiting rod 111, and an extrusion plate 112 is fixedly arranged on one side of the outer surface of the limiting rod 111.
The squeeze plate 112 is sleeved on the outer surface of the slide rod 101.
The mounting seat 7 comprises a mounting block 71, a setting groove 72 is formed in the middle of the top of the mounting block 71, a stop block 74 is fixedly arranged at the top of the inner cavity of the setting groove 72, and air inlets 73 are formed in two sides of the outer surface of the mounting block 71.
The setting groove 72 is convenient for placing the setting box 1, the stop block 74 stops the fan at the bottom of the setting box 1, the air inlet holes 73 at the left side and the right side are communicated with the setting groove 72 and the outer surface of the setting box 1, and the air inlet holes 73 stop dust.
The remote controller 2, the frequency converter 3, the motor 4, the remote control receiver 5 and the signal conversion device 6 are arranged in the setting box 1.
The remote controller 2, the frequency converter 3, the motor 4, the remote control receiver 5 and the signal conversion device 6 are all existing devices, and the motor is controlled in a frequency conversion mode.
The application provides a frequency conversion control system of a workpiece lifting crane motor, which has the following working principle:
in operation, firstly, the user inserts the setting box 1 into the setting groove 72, the bottom of the setting box 1 presses the pressing surface 113 of the limiting rod 111 downward, the limiting rod 111 is pressed into the communication hole 8, the limiting rod 111 drives the pressing plate 112 to slide, and the pressing plate 112 presses the first spring 102.
When the bottom of the setting box 1 is placed on the stop 74, the embedded groove 12 is communicated with the communication hole 8, the elastic restoring force of the first spring 102 pushes the extrusion plate 112 out, and the limit rod 111 is driven to be embedded into the embedded groove 12, so that the setting box 1 is limited in the mounting seat 7.
During disassembly, the limit rods 111 on the left side and the right side are pulled out from the limit rods 111 on the left side and the right side respectively, so that the limit rods 111 move out of the embedded groove 12, the setting box 1 and the mounting seat 7 are separated, and a user can maintain the setting box 1 or the mounting seat 7 independently.
Compared with the related art, the variable frequency control system of the workpiece lifting travelling crane motor has the following beneficial effects:
the application provides a variable frequency control system of a workpiece lifting crane motor, which is characterized in that a setting box 1, an elastic device 10 and a limiting device 11 are matched with each other, the setting box 1 can be quickly assembled at the bottom of the inside of an installation seat 7, and air blown out by a fan dissipates heat of a control system inside the setting box 1.
Second embodiment
Referring to fig. 3, fig. 4 and fig. 5 in combination, a variable frequency control system for a workpiece handling crane motor according to a first embodiment of the present application is provided. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the variable frequency control system for a workpiece lifting crane motor provided by the second embodiment of the application is different in that the variable frequency control system for the workpiece lifting crane motor is characterized in that fixed blocks 13 are fixedly arranged at the bottoms of two sides of the outer surface of each mounting block 71, a driving device 14 is arranged on one side of the inside of each fixed block 13, a collecting device 17 is arranged on one side of the top of each fixed block 13, a connecting block 15 is fixedly arranged at the tops of two sides of the outer surface of each mounting block 71, and a cleaning device 16 is in threaded engagement with the outer surface of each driving device 14.
The driving device 14 comprises a servo motor 141, and an output shaft of the servo motor 141 is fixedly connected with a threaded rod 142.
The cleaning device 16 comprises a moving plate 161, a threaded hole 162 is formed in one side of the moving plate 161, and a push rod 163 is fixedly installed at the bottom of one side of the outer surface of the moving plate 161.
The collecting device 17 comprises a collecting box 171, a collecting groove 172 is formed in the middle of the top of the collecting box 171, a turning plate 173 is rotatably connected to one side of the top of the inner cavity of the collecting groove 172, and a second spring 174 is arranged on one side of the turning plate 173.
An iron sheet is arranged at the bottom of the collecting box 171, and a magnet is fixedly arranged on the side surface of the top of the fixed block 13.
The collection box 171 is adsorbed on the magnet through the patch, so that the collection box 171 is kept stable to be placed, and a user pulls up the collection box 171 with force, so that the collection box can be separated from the magnet.
Two fixed blocks 13 are respectively fixed at the bottoms of the left side and the right side of the outer surface of the mounting seat 7, two connecting blocks 15 are respectively fixed in the middle of the left side and the right side of the outer surface of the mounting seat 7, and the bottoms of the communication holes 8 are arranged at the top of the air inlet holes 73.
The moving plate 161 is threadedly engaged with the outer surface of the threaded rod 142 through a threaded hole 162, and the moving plate 161 is restricted by the mount 7 to be slid up and down only.
The turning plate 173 is rotatably connected to the top of the left side of the inner cavity of the collecting tank 172 through a rotation shaft, the turning plate 173 is pushed by the second spring 174, the top of the inner cavity of the collecting tank 172 is kept horizontal, the collecting tank 172 is covered, and therefore dust in the collecting tank 172 cannot be adsorbed on the surface of the air inlet 73 again along with negative pressure of air.
The application provides a frequency conversion control system of a workpiece lifting crane motor, which has the following working principle:
in operation, the output shaft of the servo motor 141 is controlled by an external power supply to rotate to drive the threaded rod 142 to rotate, the threaded rod 142 rotates to be in threaded engagement with the threaded hole 162 of the moving plate 161, the moving plate 161 is limited by the side surface of the mounting seat 7 to slide downwards on the surface of the threaded rod 142, and the moving plate 161 scrapes dust adsorbed on the surface of the air inlet 73 downwards.
As the moving plate 161 moves downward, the moving plate 161 drives the push rod 163 to move downward, the push rod 163 presses the flap 173 downward, the flap 173 rotates through the rotation shaft and presses the second spring 174, and the flap 173 turns over to expose the collecting groove 172, so that dust drops downward into the collecting groove 172.
When the moving plate 161 moves to the top of the collection box 171, the output shaft of the servo motor 141 is controlled by an external power supply to reversely rotate, the threaded rod 142 is driven to reversely rotate, the meshing cleaning device 16 moves back to the bottom of the connecting block 15, the bottom end of the push rod 163 does not press the turning plate 173 any more, and the restoring elastic force of the second spring 174 presses the turning plate 173 upwards, so that the turning plate 173 covers the surface of the collection groove 172 again.
Compared with the related art, the variable frequency control system of the workpiece lifting travelling crane motor has the following beneficial effects:
the application provides a variable frequency control system of a workpiece lifting crane motor, which is characterized in that a driving device, a cleaning device 16 and a collecting device 17 are matched with each other, so that dust adsorbed on the surface of an air inlet 73 can be scraped, an extrusion turning plate 173 is opened, the dust is guided into the inside of a collecting groove 172 for collection, the device is simple in structure and strong in practicability, the dust can be cleaned, and meanwhile, the dust can be guided and collected, and the practicability and the adaptability of the device are improved.
The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims (10)

1. A frequency conversion control system of a workpiece lifting crane motor is characterized by comprising: setting a box;
the mounting seat is internally provided with a fan in the middle, communication holes are formed in the tops of two sides of the outer surface of the mounting seat, a sliding cavity is formed in the middle of the inner cavity wall of the communication holes, and elastic devices are fixedly arranged on two sides of the inner cavity of the sliding cavity;
and the limiting device is sleeved on the outer surface of the elastic device, and embedded grooves are formed in the bottoms of the two sides of the outer surface of the setting box.
2. The variable frequency control system of a workpiece handling trolley motor according to claim 1, wherein the elastic device comprises a sliding rod, and a first spring is sleeved on the outer surface of the sliding rod.
3. The variable frequency control system of a workpiece lifting crane motor according to claim 1, wherein the limiting device comprises a limiting rod, an extrusion surface is arranged on the surface of one end of the limiting rod, and an extrusion plate is fixedly arranged on one side of the outer surface of the limiting rod.
4. The variable frequency control system of the workpiece lifting crane motor according to claim 1, wherein the mounting seat comprises a mounting block, a setting groove is formed in the middle of the top of the mounting block, a stop block is fixedly arranged at the top of an inner cavity of the setting groove, and air inlets are formed in two sides of the outer surface of the mounting block.
5. The variable frequency control system of the workpiece handling trolley motor according to claim 1, wherein a remote controller, a frequency converter, a motor, a remote control receiver and a signal conversion device are arranged in the setting box.
6. The variable frequency control system of a workpiece lifting crane motor according to claim 4, wherein the bottoms of the two sides of the outer surface of the mounting block are fixedly provided with fixing blocks, one side of the inside of each fixing block is provided with a driving device, one side of the top of each fixing block is provided with a collecting device, the tops of the two sides of the outer surface of each mounting block are fixedly provided with connecting blocks, and the outer surfaces of the driving devices are in threaded engagement with cleaning devices.
7. The variable frequency control system of a workpiece handling trolley motor according to claim 6, wherein the driving device comprises a servo motor, and an output shaft of the servo motor is fixedly connected with a threaded rod.
8. The variable frequency control system of a workpiece handling trolley motor according to claim 6, wherein the cleaning device comprises a moving plate, a threaded hole is formed in one side of the moving plate, and a push rod is fixedly mounted at the bottom of one side of the outer surface of the moving plate.
9. The variable frequency control system of a workpiece handling crane motor according to claim 6, wherein the collecting device comprises a collecting box, a collecting tank is arranged in the middle of the top of the collecting box, a turning plate is rotatably connected to one side of the top of the inner cavity of the collecting tank, and a spring is arranged on one side of the turning plate.
10. The variable frequency control system of the workpiece lifting crane motor according to claim 9, wherein an iron sheet is arranged at the bottom of the collecting box, and a magnet is fixedly arranged on the side surface of the top of the fixing block.
CN202310716524.XA 2023-06-16 2023-06-16 Variable frequency control system of workpiece lifting travelling crane motor Pending CN116730196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310716524.XA CN116730196A (en) 2023-06-16 2023-06-16 Variable frequency control system of workpiece lifting travelling crane motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310716524.XA CN116730196A (en) 2023-06-16 2023-06-16 Variable frequency control system of workpiece lifting travelling crane motor

Publications (1)

Publication Number Publication Date
CN116730196A true CN116730196A (en) 2023-09-12

Family

ID=87913037

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310716524.XA Pending CN116730196A (en) 2023-06-16 2023-06-16 Variable frequency control system of workpiece lifting travelling crane motor

Country Status (1)

Country Link
CN (1) CN116730196A (en)

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