CN111943070A - Intelligent electric hoist with suspension control structure - Google Patents
Intelligent electric hoist with suspension control structure Download PDFInfo
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- CN111943070A CN111943070A CN202010889247.9A CN202010889247A CN111943070A CN 111943070 A CN111943070 A CN 111943070A CN 202010889247 A CN202010889247 A CN 202010889247A CN 111943070 A CN111943070 A CN 111943070A
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- suspension
- handle
- electric hoist
- elastic piece
- intelligent electric
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- 239000000725 suspension Substances 0.000 title claims abstract description 92
- 238000005303 weighing Methods 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 12
- 238000005339 levitation Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 7
- 230000001174 ascending effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/40—Crane hooks formed or fitted with load measuring or indicating devices
-
- 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
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
-
- 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
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
- B66C13/54—Operator's stands or cabins
- B66C13/56—Arrangements of handles or pedals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/04—Driving gear manually operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/42—Control devices non-automatic
- B66D1/46—Control devices non-automatic electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/48—Control devices automatic
- B66D1/485—Control devices automatic electrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses an intelligent electric hoist with a suspension control structure, which comprises a suspension handle assembly, a hook assembly, an electric hoist body, a weighing sensor, two pressure sensors, a control panel, an elastic piece brace and an elastic piece, wherein the electric hoist body comprises a driving unit, a chain and a hoisting chain wheel, the suspension handle assembly comprises a suspension handle and a floating grab handle, the floating grab handle is slidably arranged at the lower end of the suspension handle, the weighing sensor, the floating grab handle and the hook assembly are connected through a connecting piece, the elastic piece brace is fixed in the floating grab handle, the elastic piece is positioned between the two pressure sensors and connected with the elastic piece brace, a main control unit, a suspension control circuit and a sensor processing circuit are arranged on the control panel, and the main control unit controls the working state of the driving unit through the suspension control circuit. The invention has the advantages of automatic switching of the operation mode of the electric hoist, stable work, convenient control and the like.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of electric hoists, and particularly relates to an intelligent electric hoist with a suspension control structure.
[ background of the invention ]
The electric hoist is a special hoisting device, mainly comprises a motor, a transmission mechanism, a chain wheel and the like, is usually arranged on a crown block and a gantry crane, and has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, so the electric hoist is commonly used in places such as industrial and mining enterprises, storage docks and the like. When the electric hoist is used, the chain wheel is driven to rotate by the motor, and the chain wound on the groove of the chain wheel is controlled to be wound and unwound so as to lift or release an object hung by the chain.
The existing electric hoist generally adopts an independent control handle to realize that the lifting control of a chain is inconvenient through pressing a button, and the operation mode of the electric hoist is single. The electric hoist with the suspension function has the problems of inconvenient operation mode switching, poor working stability and the like.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides an intelligent electric hoist with a suspension control structure, which can automatically switch the operation mode of the electric hoist, is stable in work and convenient to control.
In order to achieve the purpose, the invention provides an intelligent electric hoist with a suspension control structure, which comprises a suspension handle assembly, a hook assembly, an electric hoist body, a weighing sensor, two pressure sensors which are arranged in a vertical and vertical separated mode, a control panel, an elastic sheet brace and an elastic sheet, wherein the lower end of the suspension handle assembly is connected with the hook assembly, the electric hoist body comprises a shell, a driving unit, a chain and a hoisting chain wheel connected with the driving unit, one end of the chain is connected with the hoisting chain wheel and then penetrates through the shell to be connected with the suspension handle assembly, the suspension handle assembly comprises a suspension handle and a floating handle, the floating handle is slidably arranged at the lower end of the suspension handle, a key panel with keys and a display screen are arranged on the suspension handle, the lower end of the weighing sensor, the floating handle and the hook assembly are connected through connecting pieces, the upper end of the weighing sensor is fixed in the, the utility model discloses a handle, including the main control unit, the suspension control circuit that links to each other with the main control unit and sensor processing circuit, the control panel is equipped with main control unit, the suspension control circuit that links to each other with the main control unit and sensor processing circuit, and sensor processing circuit links to each other with weighing sensor, pressure sensor, drive unit, button and display screen electric connection respectively, the main control unit can be according to the button on the keypad pressing the condition, weighing sensor and pressure sensor's numerical value variation condition is through suspension control circuit control drive unit's operating condition.
As preferred, the drive unit includes servo motor, and the main control unit is STM32 main control chip, the control panel is STM32 control panel, is equipped with weighing sensor interface, display screen interface, keypad interface, pressure sensor interface and outside servo interface on the control panel, convenient wiring, and the functioning speed is fast for electric block's lifting control is comparatively steady, and main control chip's performance is high, with low costs, the low power dissipation.
Preferably, the control panel is further provided with an emergency stop switch interface and an emergency stop protection circuit, the emergency stop protection circuit is electrically connected with the main control unit and the driving unit, an emergency stop switch is mounted on the side face of the suspension handle and electrically connected with the emergency stop switch interface, and the emergency stop switch is arranged to improve the use safety of the electric hoist.
Preferably, the connecting piece includes hook frame, connecting screw down, hook frame lower extreme inner wall is equipped with the spacing mounting groove of hook subassembly and the spacing mounting groove of connecting screw down, the cooperation of hook subassembly upper end is installed in the spacing mounting groove of hook subassembly, connecting screw's upper end and weighing sensor link to each other down, and connecting screw's lower extreme passes and installs in the spacing mounting groove of connecting screw down with the adapter sleeve cooperation behind the unsteady grab handle for firm in connection between weighing sensor, the grab handle of floating and the hook subassembly, unsteady grab handle can be followed connecting screw and slided from top to bottom down.
As preferred, the casing of lower hook frame, suspension handle, unsteady grab handle all is formed by first casing and for the second casing screw connection, the chain box is installed to electric block body rear side, the chain other end is accomodate in the chain box for suspension handle, unsteady grab handle can be dismantled, conveniently change its inside spare part, and the chain box set up conveniently to accomodate and provide the chain, have guaranteed electric block working height.
Preferably, the elastic piece brace is provided with an elastic piece limiting installation groove, one end of the elastic piece is installed on the elastic piece limiting installation groove, and connection stability between the elastic piece and the elastic piece brace is guaranteed.
Preferably, silica gel pads are arranged between the upper surface and the lower surface of the elastic sheet and the pressure sensor, and the silica gel pads can play a certain role in buffering and protecting, so that the elastic sheet is prevented from directly contacting the pressure sensor, and the pressure sensor is prevented from being damaged in the working process of the elastic sheet.
Preferably, a plurality of elastic piece retaining pieces are arranged in the suspension handle, and the elastic pieces can be prevented from generating excessive elastic deformation under certain blocking action.
As preferred, the flexure strip separation blade is L shape, and the right angle of flexure strip separation blade is down and the bottom surface supports the upper surface of flexure strip under the right-angle side of flexure strip separation blade, can have certain reinforcing effect to the flexure strip and avoid the flexure strip to produce excessive elastic deformation, guarantees the installation fastness and the operational reliability of flexure strip.
Preferably, the key board is provided with gear ascending, descending, determining, returning, peeling and fine gear adjusting keys, so that functions and parameters of the electric hoist can be conveniently set, and the working mode is convenient to switch.
The invention has the beneficial effects that: the invention has the advantages that the suspension and handheld operation of the electric hoist can be automatically and intelligently switched, the work is stable, the working state of the electric hoist can be changed by operating and controlling modes such as keys, a grab handle and the like, the control is convenient, the use safety is high, the flexibility is good, and the operation is simple and convenient.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic overall structure of one embodiment of the present invention;
FIG. 2 is a schematic view of a floating handle assembly according to one embodiment of the present invention;
FIG. 3 is a front view of a floating handle assembly according to one embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along plane A-A of FIG. 3 in accordance with one embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3 in accordance with one embodiment of the present invention;
FIG. 6 is a disassembled schematic view of a suspended handle assembly of one embodiment of the present invention;
FIG. 7 is a schematic view of a partial connection of an embodiment of the present invention;
FIG. 8 is a schematic view of a flexible panel stay of one embodiment of the present invention;
FIG. 9 is a schematic diagram of a control panel configuration according to an embodiment of the present invention;
FIG. 10 is a schematic view of the control board and drive unit connections of one embodiment of the present invention;
FIG. 11 is a diagram of a host chip according to an embodiment of the invention;
FIG. 12 is a schematic diagram of an emergency stop protection circuit according to an embodiment of the invention;
FIG. 13 is a schematic diagram of a levitation control circuit according to an embodiment of the present invention;
FIG. 14 is a schematic diagram of a sensor processing circuit according to an embodiment of the present invention;
FIG. 15 is a schematic diagram of a brake control circuit of a servo motor according to an embodiment of the present invention;
FIG. 16 is a circuit diagram of an external servo interface connection according to one embodiment of the present invention;
FIG. 17 is a pressure sensor connection circuit diagram of one embodiment of the present invention;
fig. 18 is a functional schematic diagram of an embodiment of the present invention.
In the figure: 1-suspension handle component, 2-control panel, 3-weighing sensor, 4-elastic piece brace, 5-elastic piece, 6-pressure sensor, 7-electric hoist body, 8-chain box, 9-drive unit, 10-display screen, 11-emergency stop switch, 12-key board, 13-suspension handle, 14-floating grab handle, 15-lower hook frame, 16-hook component, 17-connecting sleeve, 18-spiral cable, 21-display screen interface, 22-key board interface, 23-emergency stop terminal interface, 24-weighing sensor interface, 25-pressure sensor interface, 26-external servo interface, 31-upper connecting screw rod, 32-lower connecting screw rod, 41-elastic piece limit mounting groove, 42-a fixed mounting hole, 51-a silica gel pad, 52-an elastic sheet baffle and 81-a chain.
[ detailed description ] embodiments
Referring to fig. 1 to 17, the embodiment discloses an intelligent electric hoist with a suspension control structure, which comprises a suspension handle assembly 1, a hook assembly 16, an electric hoist body 7, a weighing sensor 3, two pressure sensors 6 arranged in parallel up and down, a control panel 2, two elastic sheet pull strips 4 and two elastic sheets 5 distributed in bilateral symmetry, wherein the lower end of the suspension handle assembly 1 is connected with the hook assembly 16, the electric hoist body 7 comprises a shell, a driving unit 9 and a hoisting sprocket connected with the driving unit 9, a chain box 8 is arranged at the rear side of the electric hoist body 7, a chain 81 is stored in the chain box 8, one end of the chain 81 is connected with the hoisting sprocket and then passes through the shell to be connected with the suspension handle assembly 1, the suspension handle assembly 1 comprises a suspension handle 13 and a floating handle 14, the floating handle 14 is slidably arranged at the lower end of the suspension handle 13, a key board 12 with keys and a display screen 10 are arranged on the suspension handle 13, the lower extreme of weighing sensor 3, it links to each other with the connecting piece between grab handle 14 and the hook subassembly 16 to float, weighing sensor 3 upper end is fixed inside suspension handle 13 through last connecting screw 31, elastic sheet brace 4 is fixed inside the grab handle 14 that floats, elastic sheet 5 is located between two pressure sensor 6 and elastic sheet 5 links to each other with elastic sheet brace 4, pressure sensor 6, control panel 2, elastic sheet brace 4 and elastic sheet 5 are all installed inside suspension handle 13, control panel 2 respectively with weighing sensor 3, pressure sensor 6, drive unit 9, button and display screen 10 electric connection, be equipped with the main control unit on control panel 2, suspension control circuit and sensor processing circuit that link to each other with the main control unit, sensor processing circuit links to each other with weighing sensor 3, the main control unit can be according to the button pressing condition on the keypad 12, the numerical value change condition of weighing sensor 3 and pressure sensor 6 is through suspension control circuit control servo processing circuit in the drive unit 9 The working state of the motor further controls the working state of the electric hoist;
the lifting hook assembly 16 comprises a lifting hook and a safety piece arranged at an opening of the lifting hook, the upper end of an upper connecting screw rod 31 is connected with an upper hook frame, an upper framework is connected with a chain 81, the lower end of the upper hook frame is abutted against the top end of a suspension handle 13, a key board 12 is inserted into the outer wall of the front side of the suspension handle 13, display windows matched with a display screen 10 are arranged on the front sides of the key board 12 and the suspension handle 13, the display screen 10 is fixedly arranged on the inner wall of the front side of the suspension handle 13, a control panel 2 is fixed inside the suspension handle 13 through screws, and an elastic;
a channel for the floating grab handle 14 to float up and down is arranged at the bottom of the suspension handle 13, a diaphragm plate is arranged inside the suspension handle 13, an opening for the elastic sheet brace 4 to pass through is arranged on the diaphragm plate, a cavity is formed between the diaphragm plate and the channel, and the two pressure sensors 5 are fixedly arranged in the cavity;
the driving unit 9 comprises a servo motor and a servo amplifier, the main control unit is an STM32 main control chip, the model of the STM32 main control chip is STM32F103C6, the control panel 2 is an STM32 control panel, the control panel 2 is provided with a weighing sensor interface 24, a display screen interface 21, a key board interface 22, a pressure sensor interface 25 and an external servo interface 26, the weighing sensor interface 24, the display screen interface 21, the key board interface 22 and the pressure sensor interface 25 are respectively and electrically connected with the weighing sensor 3, the display screen 10, the key board 12 and the pressure sensor 6 correspondingly, the external servo interface 26 is connected with the servo motor through a spiral cable 18, and the spiral cable 18 penetrates through the upper end of the suspension handle 13;
still be equipped with scram terminal interface 23, scram protection circuit and warning circuit on the control panel 2, suspension handle 13 side-mounting has scram switch 11, and scram switch 11 links to each other with scram terminal interface 23 electrical property, and scram protection circuit, warning circuit all with main control unit electric connection, scram protection circuit and drive unit 9 electric connection, warning circuit include bee calling organ.
The connecting piece comprises a lower hook frame 15 and a lower connecting screw rod 32, a hook component limiting installation groove and a lower connecting screw rod limiting installation groove are arranged on the inner wall of the lower end of the lower hook frame 15, the upper end of a hook is installed in the hook component limiting installation groove in a matched mode, the upper end of the lower connecting screw rod 32 is connected with the weighing sensor 3, the lower end of the lower connecting screw rod 32 penetrates through the diaphragm plate and the floating grab handle 14 and then is installed in the lower connecting screw rod limiting installation groove in a matched mode through a connecting sleeve 17, a nylon bush 18 is sleeved on the outer side area of the lower connecting screw rod 32 between the upper end of the lower hook frame 15 and the bottom end of the floating grab handle 14, the lower end of the nylon bush 18 abuts against;
the lower hook frame 15, the suspension handle 13 and the floating grab handle 14 are all formed by connecting a first shell and a second shell through screws, the chain box 8 is installed on the rear side of the electric hoist body 7, and the other end of the chain 81 is contained in the chain box 8.
The elastic piece brace 4 is provided with an elastic piece limiting installation groove 41 and a fixed installation hole 42, one end of the elastic piece 5 is fixedly installed on the elastic piece limiting installation groove 41, the elastic piece brace 4 is fixedly installed inside the floating grab handle 14 through screws, and the screws penetrate through the fixed installation hole 42.
Four elastic piece separation blades 52 are installed inside the suspension handle 13 through screws, each elastic piece 5 corresponds to two elastic piece separation blades 52, the separation blades of the elastic piece separation blades 52 are L-shaped, the right angle of each elastic piece separation blade 52 faces downwards, and the bottom surface of the lower right-angle side of each elastic piece separation blade 52 supports against the upper surface of each elastic piece 2.
The key board 12 is provided with a shift key for ascending, descending, determining, returning, peeling and fine adjustment, wherein the RETURN key is a RETURN key, the ENTER key is a determination key, the PEEL key is a peeling key, the FT key is a fine adjustment shift key, the inverted V key is an ascending key, the V key is a descending key, information displayed on the display screen 10 comprises operation parameters, working states and mode information, the fine adjustment shift comprises three shifts, and the minimum inching unit in the inching precision control of the three shifts is 0.5mm, so that the high-precision control can be realized.
In the pressure sensor connection circuit, P3 is an interface for connecting the pressure sensor 6 located above, and P4 is an interface for connecting the pressure sensor 6 located below.
Referring to fig. 18, the working principle of the embodiment of the present application is as follows: the control panel 2 can control the electric servo motor by combining the numerical value change conditions of the weighing sensor 3 and the pressure sensor 6 on the suspension handle 13 and the key pressing condition on the key board 12, so as to realize the lifting and suspension operation of the heavy object;
wherein, weighing sensor 3 carries out weight detection to the heavy object that hangs on the lifting hook and will detect data and transmit STM32 main control chip on control panel 2 through sensor processing circuit, STM32 main control chip obtains the current load weight data of electric block's hoisting object through reading the detection data that feeds back on the sensor processing circuit, compare this weight data with the data that feeds back to STM32 main control chip on pressure sensor 6, output servo drive signal output servo control signal give drive unit after suspension control circuit handles, control servo motor's operating condition and then control electric block's operating condition, the signal of scram terminal interface 23 directly controls scram protection circuit and carries out on-off control to suspension control circuit's power supply, and then realize the scram protection to electric block, servo motor's operating condition includes the corotation of motor output end, The servo control signal of the suspension control circuit passes through the servo amplifier and then reaches the servo motor, different mode setting interfaces can be displayed on the display screen, the mode setting interfaces comprise a demonstration mode and an operation mode, the operation distance parameter and the interval time can be set on the demonstration mode interface so as to carry out reciprocating motion, the operation mode interface comprises suspension setting, and whether the suspension mode is started or not can be selected during the suspension setting.
The working process is as follows: when the electric hoist needs to be started, the emergency stop switch 11 on the suspension handle 13 is knocked down, the electric hoist is powered on, after the display screen 10 displays 'emergency stop', the emergency stop switch 11 is turned on, the electric hoist gives out 'click', the servo motor is ready to work, when no heavy object exists on the lifting hook, the peeling button on the key board 12 is pressed down to peel the self weight of the lifting hook, the servo motor is started, the lifting motion of the lifting hook can be controlled by pressing the ascending button, the descending button or holding the floating grab handle 14 on the key board 12 to move up and down to control the lifting hook of the electric hoist to lift the heavy object, when the heavy object is lifted up without additional operation, the weight sensor 3 gives out 'dropping' of the grab handle after detecting that the weight of the heavy object is stable, the servo motor of the electric hoist starts the suspension mode, an operator can hold the floating grab handle 14 with hands to press the heavy object down or pull the heavy object upwards to control the servo motor to drive the heavy object to move in the, when the floating grab handle 14 presses down a heavy object or pulls up the heavy object by hand, the elastic sheet brace 4 can synchronously descend or ascend along with the floating grab handle 14, the elastic sheet brace 4 can pull the elastic sheet 5 to synchronously descend or ascend when descending or ascending, the elastic sheet 5 can generate pressure on the pressure sensor 6 below and above the elastic sheet, the pressure sensor 6 can detect a pressure value and transmit the pressure value to the main control unit, the main control unit can control the rotation speed change of the servo motor according to the change of the pressure value, the magnitude of the pressure value is in direct proportion to the working speed of the servo motor, in a suspension mode, if an operator presses any key on the key board and then exits the suspension mode, the weight of the object is recalculated, the determined key is pressed, a parameter setting interface can be displayed on the display screen 10, parameters such as suspension acting force, movement speed and overweight alarm value on the display screen can be modified through pressing the key, when the weight of the heavy object lifted by the electric hoist exceeds a set overweight alarm value, the buzzer alarms, at the moment, the emergency stop switch needs to be knocked down, the servo motor stops the work of the contracting brake, the weight of the lifted heavy object is reduced until the weight of the heavy object is within a rated lifting weight range, and the servo motor normally works again after the emergency stop switch 11 is loosened;
the control panel 2 reads the press frequency of the keys on the key panel 12 to realize corresponding function setting (such as whether suspension is started or not), parameter setting (such as suspension acting force, hoisting speed and overweight alarm value size) and mode switching (such as demonstration mode and operation mode), when the pressure sensor 6 detects pressure, the suspension operation automatically rotates the handle operation, when the pressure sensor 6 detects no pressure, the handle operation automatically rotates the suspension operation, when the weight is suspended for a certain time, the mechanical brake of the servo motor can be closed, and the demonstration mode is that the lifting hook automatically moves up and down;
the weight of the heavy object is used as a reference in the suspension mode, and the upward or downward speed movement of the heavy object is controlled according to the direction and the magnitude of the acting force superposed on the heavy object, and the specific control is as follows: the STM32 main control chip reads the weight information of the weight fed back by the sensor processing circuit for judgment, and controls the suspension control circuit to send the continuous pulse and the positive direction signal into the servo amplifier when detecting that the current weight is larger than the initial weight, so as to realize the positive rotation of the servo motor and drive the weight to move downwards; if the detected current weight is smaller than the original weight, the suspension control circuit is controlled to send continuous pulses and negative direction signals into the servo amplifier, so that the servo motor rotates reversely to drive the weight to move upwards, the servo amplifier drives the servo motor to operate in a bidirectional mode, the speed of the movement of the weight is in direct proportion to the magnitude of an acting force, the acting force is equal to the pressure of the elastic sheet 5 on the pressure sensor 6, if the front weight and the rear weight of the weight detected in the front and the rear are not changed, the weight is in a suspension state, and if the front weight and the rear weight are changed, the weight is in a movement state.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides an intelligence electric block with suspension control structure, includes suspension handle components, lifting hook subassembly, electric block body, suspension handle components lower extreme links to each other with the lifting hook subassembly, the electric block body includes casing, drive unit, chain, the jack-up sprocket that links to each other with drive unit, chain one end links to each other with the jack-up sprocket after passing the casing and linking to each other its characterized in that with the suspension handle components: the suspension handle assembly comprises a suspension handle and a floating grab handle, the floating grab handle is slidably mounted at the lower end of the suspension handle, a key board with keys and a display screen are mounted on the suspension handle, the lower end of the weighing sensor, the floating grab handle and the hook assembly are connected through a connecting piece, the upper end of the weighing sensor is fixed in the suspension handle, the elastic piece brace is fixed in the floating grab handle, the elastic piece is positioned between the two pressure sensors and is connected with the elastic piece brace, the pressure sensors, the control panel, the elastic piece brace and the elastic piece are all mounted in the suspension handle, and the control panel is respectively electrically connected with the weighing sensors, the pressure sensors, the driving unit, the keys and the display screen, the control panel is provided with a main control unit, a suspension control circuit and a sensor processing circuit, the suspension control circuit and the sensor processing circuit are connected with the main control unit, the sensor processing circuit is connected with the weighing sensor, and the main control unit can control the working state of the driving unit through the suspension control circuit according to the key pressing condition on the key board and the numerical value change condition of the weighing sensor and the pressure sensor.
2. The intelligent electric hoist with a levitation control structure as recited in claim 1, wherein: the drive unit includes servo motor, the main control unit is STM32 main control chip, the control panel is STM32 control panel, is equipped with weighing sensor interface, display screen interface, keypad interface, pressure sensor interface and outside servo interface on the control panel.
3. The intelligent electric hoist with a levitation control structure as recited in claim 2, wherein: the suspension handle is characterized in that an emergency stop terminal interface and an emergency stop protection circuit are further arranged on the control panel, the emergency stop protection circuit is electrically connected with the main control unit and the driving unit, an emergency stop switch is mounted on the side face of the suspension handle, and the emergency stop switch is electrically connected with the emergency stop terminal interface.
4. The intelligent electric hoist with a levitation control structure as recited in claim 1, wherein: the connecting piece includes hook frame, connecting screw down, hook frame lower extreme inner wall is equipped with the spacing mounting groove of hook subassembly and the spacing mounting groove of connecting screw down, the cooperation of hook subassembly upper end is installed in the spacing mounting groove of hook subassembly, connecting screw's upper end and weighing sensor link to each other down, and connecting screw's lower extreme passes and installs in the spacing mounting groove of connecting screw down with the adapter sleeve cooperation behind the unsteady grab handle.
5. The intelligent electric hoist with the suspension control structure as claimed in claim 4, wherein: the casing of hook frame, suspension handle, unsteady grab handle all is formed by first casing and for the second casing screw connection, the chain box is installed to electric block body rear side, the chain other end is accomodate in the chain box.
6. The intelligent electric hoist with a levitation control structure as recited in claim 1, wherein: the elastic piece brace is provided with an elastic piece limiting installation groove, and one end of the elastic piece is installed on the elastic piece limiting installation groove.
7. The intelligent electric hoist with a levitation control structure as recited in claim 1, wherein: and silica gel pads are arranged between the upper surface and the lower surface of the elastic sheet and the pressure sensor.
8. The intelligent electric hoist with a levitation control structure as recited in claim 1, wherein: a plurality of elastic sheet retaining pieces are arranged inside the suspension handle.
9. The intelligent electric hoist with a levitation control structure as recited in claim 8, wherein: the elastic sheet separation blade is L shape, and the right angle of elastic sheet separation blade is down and the bottom surface supports the upper surface of elastic sheet under the right angle limit of elastic sheet separation blade.
10. The intelligent electric hoist with a levitation control structure as recited in claim 1, wherein: and the key board is provided with gear keys for ascending, descending, determining, returning, peeling and fine adjustment.
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| CN202010889247.9A CN111943070A (en) | 2020-08-28 | 2020-08-28 | Intelligent electric hoist with suspension control structure |
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| CN202010889247.9A CN111943070A (en) | 2020-08-28 | 2020-08-28 | Intelligent electric hoist with suspension control structure |
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| CN113968541A (en) * | 2021-11-18 | 2022-01-25 | 山东鲁烟莱州印务有限公司 | Gravure plate changing mechanism and using method thereof |
| CN114835043A (en) * | 2022-04-21 | 2022-08-02 | 杭州微感科技有限公司 | Force-sensing lifting equipment and control method |
| WO2023015707A1 (en) * | 2021-08-11 | 2023-02-16 | 中际联合（北京）科技股份有限公司 | Operating handle and lifting device |
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