CN104973522B - Jib crane - Google Patents

Jib crane Download PDF

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Publication number
CN104973522B
CN104973522B CN201510256850.2A CN201510256850A CN104973522B CN 104973522 B CN104973522 B CN 104973522B CN 201510256850 A CN201510256850 A CN 201510256850A CN 104973522 B CN104973522 B CN 104973522B
Authority
CN
China
Prior art keywords
circuit
reel
steel cable
brake
jib
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510256850.2A
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Chinese (zh)
Other versions
CN104973522A (en
Inventor
鲁霄钢
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.)
Taicang Libao Intelligent Technology Co., Ltd
Original Assignee
鲁霄钢
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
Priority to CN201610824858.9A priority Critical patent/CN106395646B/en
Priority to CN201610825102.6A priority patent/CN106429924A/en
Application filed by 鲁霄钢 filed Critical 鲁霄钢
Priority to CN201610825078.6A priority patent/CN106629440B/en
Priority to CN201610825170.2A priority patent/CN106276654A/en
Priority to CN201610824409.4A priority patent/CN106276653B/en
Priority to CN201610824850.2A priority patent/CN106429923A/en
Priority to CN201610824425.3A priority patent/CN106379817B/en
Priority to CN201610824421.5A priority patent/CN106348190B/en
Priority to CN201610826168.7A priority patent/CN106395647B/en
Priority to CN201610828269.8A priority patent/CN106276636B/en
Priority to CN201610824407.5A priority patent/CN106429895B/en
Priority to CN201610825285.1A priority patent/CN106402203B/en
Priority to CN201610828294.6A priority patent/CN106348187B/en
Priority to CN201610828104.0A priority patent/CN106379819B/en
Priority to CN201610825105.XA priority patent/CN106276635B/en
Priority to CN201610824877.1A priority patent/CN106379818B/en
Priority to CN201610828215.1A priority patent/CN106379820B/en
Priority to CN201510256850.2A priority patent/CN104973522B/en
Priority to CN201610828338.5A priority patent/CN106379826B/en
Priority to CN201610828346.XA priority patent/CN106335850B/en
Priority to CN201610826170.4A priority patent/CN106395648A/en
Publication of CN104973522A publication Critical patent/CN104973522A/en
Application granted granted Critical
Publication of CN104973522B publication Critical patent/CN104973522B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
    • F16D49/16—Brakes with two brake-blocks
    • 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
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B66D1/20—Chain, belt, or friction drives, e.g. incorporating sheaves of fixed or variable ratio
    • 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
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/38—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with separate prime movers for crane and vehicle
    • 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
    • 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
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88—Safety gear
    • B66C23/90—Devices for indicating or limiting lifting moment
    • B66C23/905—Devices for indicating or limiting lifting moment 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
    • 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
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B66D1/16—Power transmissions between power sources and drums or barrels the drums or barrels being freely rotatable, e.g. having a clutch activated independently of a brake
    • B66D1/18—Power transmissions between power sources and drums or barrels the drums or barrels being freely rotatable, e.g. having a clutch activated independently of a brake and the power being transmitted from a continuously operating and irreversible prime mover, i.e. an internal combustion engine, e.g. on a motor vehicle or a portable winch
    • 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
    • B66D1/30—Rope, cable, or chain drums or barrels
    • 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
    • B66D1/30—Rope, cable, or chain drums or barrels
    • B66D1/34—Attachment of ropes or cables to drums or barrels
    • 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
    • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • 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
    • 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
    • B66D1/54—Safety gear
    • 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
    • B66D1/56—Adaptations of limit switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
    • B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0321—Travelling cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/01—Winches, capstans or pivots
    • B66D2700/0125—Motor operated winches
    • B66D2700/0141—Electrically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/01—Winches, capstans or pivots
    • B66D2700/0183—Details, e.g. winch drums, cooling, bearings, mounting, base structures, cable guiding or attachment of the cable to the drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure

Abstract

The open a kind of jib crane of the embodiment of the present invention, its turntable is installed on chassis, and hoist engine is installed on turntable, and jib head end is articulated with turntable, and suspension hook hangs on jib tail end, and landing oil cylinder one end is articulated with turntable, and the other end is articulated with jib；Hoist engine driving means arranges motor, shaft coupling and reductor; the reel of coiler device is in transmission connection in reductor; steel cable is wound in reel, top sheave group and downslide wheels; the brake of brake unit holds the braked wheel on reductor high speed shaft tightly when braking; control the motor inverter of device by changing frequency to electric machine speed regulation; motor control loop is series contactor between motor protective circuit breaker and converter, and upper the next limit switch is connected in series to the control loop of catalyst.Jib crane complete machine, subsystem or parts are improved by the present invention in many aspects, can be with the performance of improving product.

Description

Jib crane
Technical field
The present invention relates to hoisting machinery, particularly relate to a kind of jib crane and subsystem thereof or parts.
Background technology
Jib crane includes lifting mechanism, jib lubbing mechanism, rotating mechanism etc., relies on the interoperation of these mechanisms, Weight lifting and carrying in certain cylindrical space can be made.The lifting mechanism of jib crane includes hoist engine, The steel cable being around on reel by folding and unfolding lifts by crane workpiece.Existing boom type hoist engine design on exist certain not Foot: such as, the spool body of reel, spool shaft structure are complex, installs inconvenience not；And for example, brake Braking effect is not ideal enough, and parking stopping means easily lost efficacy up and down, it is possible to cause security incident；For another example, steel Rope winding method is not reasonable, the problem that steel cable unclamps or is intertwined sometimes occurs, and thereby increases safety hidden Suffer from；Additionally, hoist engine speed can not be conveniently adjusted；Etc..Because above-mentioned all many deficiencies, having must Crane and hoist engine thereof are improved.
Summary of the invention
For prior art exist defect, the purpose of the embodiment of the present invention be improve jib crane complete machine, Subsystem or parts, in order to the performance of improving product.
For solving above technical problem, the embodiment of the present invention provides a kind of jib crane, including chassis, turntable, Hoist engine, landing oil cylinder, jib, suspension hook, turntable is installed on chassis, and hoist engine is installed on turntable, the head of jib End is articulated with turntable, and suspension hook hangs on the tail end of jib, and one end of landing oil cylinder is articulated with turntable, landing oil cylinder The other end is articulated with jib；Hoist engine is provided with driving means, coiler device, brake unit and controls device, Driving means is provided with motor, shaft coupling and the reductor coupled successively, the reel of coiler device be in transmission connection in Reductor, the steel cable of coiler device is wound on reel, top sheave group and downslide wheels and carries out folding and unfolding, brake unit Brake act on the high speed shaft of reductor to hold the braked wheel on reductor high speed shaft tightly when braking, control dress The motor inverter put is converted into DC source industrial frequency AC power supply, is turned by DC source the most again Change the controlled alternating current power supply of frequency, voltage into, by changing frequency to electric machine speed regulation, to control dress to motor The motor control loop put series contactor between motor protective circuit breaker and converter, upper bottom is spacing Switch series is linked to the control loop of catalyst.
More preferably, steel cable is wound in the structure of reel, top sheave group and downslide wheels and is: steel cable is led from reel first Rope inverse position clockwise lay out, walk around the most counterclockwise the first lower sheave, the first top sheave, the second lower sheave, Second top sheave, then after walking around the 3rd lower sheave, the 3rd top sheave, the 4th lower sheave the most clockwise, during another mistake Pin wraparound reel the second conductor rope position；First end of steel cable is around in the first end of reel and is fixed on the first pressure rope position Putting, the second end of steel cable is around in the second end of reel and is fixed on reel the second pressure rope position.
More preferably, reel includes spool body and spool shaft；The top, two ends of spool body is respectively provided with pressure rope structure, First end plate of spool body is coupled with the slow-speed shaft of reductor by drum connection structure, the second end plate of spool body Fix the first end supporting spool shaft with gripper shoe, the second end of spool shaft is supported in drum support.
More preferably, the steel cable pressing plate lower surface of pressure rope structure arranges steel cable indent, and this steel cable pressing plate is tight by bolt It is fixed in the screw of spool body so that steel cable is fixed in spool body；Wherein, spool body arranges steel cable guide groove So that steel cable introduces along steel cable guide groove/draws.
More preferably, the connection semiaxis of drum connection structure is supported in connection dish by cylinder roller bearing, and couples half The medial end of axle arranges baffle plate, couples semiaxis, cylinder roller bearing and joint portion, the inner side inner cap of connection dish Plate blocks, and joint portion, the outside outer cover plate coupling semiaxis, cylinder roller bearing and connection dish blocks, connection dish Fix with ring flange, the first end plate that ring flange is anchored on spool body.
More preferably, the support pedestal of drum support arranging support bearing block, spool shaft bearing is supported in machine Seat bearing block, spool shaft is supported in spool shaft bearing, support bearing block, reel bearing by tapered roller bearing The joint portion, inner side of seat and tapered roller bearing inner cover plate blocks, support bearing block, spool shaft bearing and taper Joint portion, the outside outer cover plate of roller bearing blocks.
More preferably, spool shaft is arranged spool shaft gusset piece to couple lifting stop drive end；This lifting stop U-bracket be fixed on the outer cover plate of drum support, stop housing is anchored on U-bracket by screw, Screw support is on limit switch, and push pedal is installed on screw rod, and active conductive post one end is connected to push pedal, and activity is led The electricity post other end is supported on an arm of the limit switch being connected with limit switch, and fixing conductive pole is fixed on spacing On another arm of switch, runner is installed on the end of screw rod, and one end of rocking bar connects runner prejudicially, rocking bar The other end is connected with spool shaft gusset piece；Installing guide post on stop housing, this guide post be arranged in parallel with screw rod, Push pedal is arranged in guide post and slides.
More preferably, converter be provided with filtering decoupling circuit, rectification circuit, filter circuit, inverter circuit, Power factor correction circuit, microcontroller circuit and man-machine interface circuit, filtering decoupling circuit is arranged at The input stage of converter, rectification circuit, filter circuit and inverter circuit be sequentially connected, power factor (PF) school Positive circuit is arranged between rectification circuit and filter circuit and is connected to the power factor (PF) school of microcontroller circuit Anode, inverter circuit is connected to the driving signal end of microcontroller circuit, and man-machine interface circuit is connected to micro-place The input of reason device circuit.
More preferably, inverter circuit includes power tube driving chip and six power tubes: power tube driving chip It is connected to the microprocessor of microcontroller circuit, in order to according to the pulse width modulation letter of microprocessor output Number drive power tube alternate conduction and the shutoff of correspondence；Six power tubes are divided into three groups, often organize power One phase winding of management and control motor, corresponding access diode between source electrode and the drain electrode of each power tube.
More preferably, in described brake, the first brake arm, the first brake arm, the active of band driving means are stretched Bar, one end of driven expansion link are hingedly connected to Brake Block；First brake arm, driving telescopic rod, driven flexible The other end of bar is hingedly connected to an arm of L-shaped connecting rod；The other end of the second brake arm and linear rod hinge connection, The other end of linear connecting rod is hinged with another arm of L-shaped connecting rod；First brake block is installed on the interior of the first brake arm Side, the second brake block is installed on the inner side of the second brake arm, the intrados of this first brake block and the second brake block Intrados braking time hold the braked wheel on reductor high speed shaft tightly.
Compared with prior art, jib crane is improved by the embodiment of the present invention, thus can improve product Performance, it shows following aspect: optimize lifting drum body, spool shaft and roll support, draw bail, Reel layout is the most reasonable, and structure is the compactest, installs the most convenient；Improve spool body structure and steel cable is wound around Mode and pressure rope structure, the problem can preferably avoided steel cable to unclamp or be intertwined, be conducive to eliminating safety Hidden danger；Improve brake, lifting stop and motor stopping controlling organization, spacing, stop in emergency when Can stop in time according to predetermined intention, brake, thus be effectively reduced security incident；Use converter to elevator Machine electric machine speed regulation, can control lifting velocity with aspect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of jib crane of the present invention；
Fig. 2 is the front view of hoist engine of the present invention；
Fig. 3 is the top view of hoist engine of the present invention；
Fig. 4 is the right view of hoist engine of the present invention；
Fig. 5 is the schematic diagram of brake of the present invention；
Fig. 6 is steel cable winding arrangement schematic diagram of the present invention；
Fig. 7 is reel of the present invention and drum connection structure, pressure rope structure and the schematic diagram of drum support；
Fig. 8 is the front view of spool body of the present invention；
Fig. 9 is the longitudinal sectional view of spool body of the present invention；
Figure 10 is the schematic diagram of spool shaft of the present invention；
Figure 11 is drum connection structure schematic diagram of the present invention；
Figure 12 is that the present invention presses rope structure schematic diagram；
Figure 13 is drum support schematic diagram of the present invention；
Figure 14 is the schematic diagram that the present invention lifts stop；
Figure 15 is the internal structure schematic diagram that the present invention lifts stop；
Figure 16 is the electrical schematic diagram of motor stopping controlling organization of the present invention；
Figure 17 is the electrical connection graph of the limit switch of motor stopping controlling organization of the present invention；
Figure 18 is the block diagram of motor speed regulation system of the present invention；
Figure 19 is the schematic block circuit diagram of converter of the present invention；
Figure 20 is the circuit theory diagrams of inverter of the present invention.
Detailed description of the invention
In order to be more fully understood that know-why and the work process of the embodiment of the present invention, below in conjunction with accompanying drawing and concrete Embodiment describes the present invention further.
The structure of hoist engine of the present invention, subsystem or parts is indicated by Fig. 1-Figure 20, therein identical Label is expressed as same parts.
See Fig. 1, it is shown that the structure of jib crane of the present invention.This jib crane includes chassis S1, turns The parts such as platform S2, hoist engine S3, landing oil cylinder S4, jib S5, suspension hook S6, turntable S2 is loaded on chassis S1, hoist engine S3 are loaded on turntable, and the head end of jib S5 is articulated with turntable S2, and suspension hook 6 hangs on jib S5 Tail end, one end of landing oil cylinder S4 is articulated with turntable S2, and the other end of landing oil cylinder S4 is articulated with jib S5.Turntable S2 rotates and jib S5 is rotated, and oil cylinder S4 is flexible makes jib S5 landing, speed change oil cylinder (figure Not shown) make jib S5 luffing, hoist engine S3 folding and unfolding be around in reel, jib assembly pulley and lifting hook pulley group Steel cable lift by crane the workpiece on suspension hook S6.The present invention is carried out for hoist engine S3 and subsystem thereof and parts Many places are improved, further explained below.
Referring also to Fig. 2-Fig. 4, it is shown that the complete machine structure of hoist engine of the present invention.This hoist engine includes driving dress Put, coiler device, brake unit and control device (not shown): driving means is (excellent by motor M01 Elect frequency conversion motor as), shaft coupling 7, the parts such as reductor 1 constitute, motor M01, shaft coupling 7, reductor 1 couples successively；Coiler device is made up of reel 2, top sheave group 3 and the parts such as downslide wheels and steel cable, reel 2 are in transmission connection in reductor 1 so that reel 2 turns around, and steel cable is wound in reel 2, top sheave group 3 and glides Folding and unfolding is carried out on wheels；Brake unit is made up of brake 5 and adnexa etc., and brake 5 acts on reductor 1 High speed shaft or slow-speed shaft on be braked；Control device and be provided with motor stopping controlling organization, this motor stopping Controlling organization stops motor and runs when default upper limit or lower limit.
As shown in figs 2-4, the concrete structure of this hoist engine is: reductor 1 and drum support 4 are installed In frame S01 top, one end of reel 2 is rotationally connected with drum support 4, and the other end of reel 2 leads to Crossing drum connection structure 8 and be in transmission connection in the slow-speed shaft of reductor 1, the high speed shaft of reductor 1 passes through shaft coupling (outside is provided with shaft coupling clamshell) 7 is connected with the power output shaft of motor M01；Top sheave group 3 is positioned machine Frame S01, steel cable is wound in reel 2, top sheave group 3 and downslide wheels with certain style canoe, at electricity Folding and unfolding is carried out accordingly during machine M01 forward or reverse；Brake 5 is installed on reductor 1, can hold tightly during braking Braked wheel 6 on reductor 1 high speed shaft and be braked.
In this hoist engine, optimizing spool body, spool shaft and roll support thereof, draw bail, reel layout is more For rationally, structure is the compactest, installs the most convenient；Improve spool body structure and steel cable canoe and Ya Sheng mechanism, the problem can preferably avoided steel cable to unclamp or be intertwined, be conducive to eliminating safe hidden trouble； Improve brake, lifting stop and motor stopping controlling organization, spacing, stop in emergency when can To stop in time according to predetermined intention, to brake, thus it is effectively reduced security incident.Described further below.
Fig. 2-Fig. 4 illustrates brake mounting structure, and this brake 5 is installed on the high speed shaft of reductor 1, logical Cross and hold braked wheel 6 tightly and reductor 1 is braked, and so that reel 2 on the slow-speed shaft of reductor 1 Braking.Further below the structure of brake is described in detail.
See Fig. 5, it is shown that the structure of brake of the present invention.In this brake 5, the first brake arm 52, first Brake arm 53, the driving telescopic rod (can be cylinder or oil cylinder) 59 of band driving means 50, driven expansion link 58 One end be hingedly connected to Brake Block 51；First brake arm 52, driving telescopic rod 59, driven expansion link 58 The other end is hingedly connected to an arm of L-shaped connecting rod 57；The other end of the second brake arm 53 and linear connecting rod 55 Hinged, the other end of linear connecting rod 55 is hinged with another arm of L-shaped connecting rod 57；First brake block 56 is installed In the inner side of the first brake arm 52, the second brake block 54 is installed on the inner side of the second brake arm 53, this first system The intrados of motion block 56 and the intrados of the second brake block 54 hold the system on reductor 1 high speed shaft tightly when braking Driving wheel 6.This mode of braking simple in construction, braking response is fast, and effect is preferable.
See Fig. 6, it is shown that steel cable winding arrangement of the present invention.In this steel cable winding arrangement, steel cable 10 is by following Mode is wound in reel 2, top sheave (jib pulley) organize 3 and lower sheave (lifting hook pulley) organize 9: steel cable First end of 10 is around in the first end of reel 2 and is fixed on the first pressure rope position 2a, the second end of steel cable 10 around In reel 2 the second end and be fixed on reel 2 second pressure rope position 2d, steel cable 10 is from reel 2 first conductor rope Position 2b counterclockwise lays out, and walks around first lower sheave the 91, first top sheave 31, second the most counterclockwise Lower sheave the 92, second top sheave 32, then walk around the most clockwise the 3rd lower sheave the 93, the 3rd top sheave 33, After 4th lower sheave 94, another mistake hour hands wraparound reel 2 second conductor rope position 2c.Steel cable 10 uses this winding Mode, can reduce steel cable and be wound around, unclamp etc. the probability of occurrence of bad phenomenon.
See Fig. 7, it is shown that reel of the present invention and drum connection structure, pressure rope structure and drum support.Volume Cylinder 2 includes spool body 21 and spool shaft 22, and the first end of this spool shaft 22 is fixedly supported to spool body 21 Second end, the first end of spool body 21 is by drum connection structure (the I part in Fig. 6) and reductor 1 Slow-speed shaft couples, and the second end of spool shaft 22 is supported in drum support (the III part in Fig. 6), installs Get up very convenient.Additionally, the top, two ends of spool body 21 is respectively provided with pressure rope structure (the II portion in Fig. 6 Point), can preferably fix the end of steel cable 10.
Referring also to 8-Fig. 9, it is shown that the structure of reel of the present invention.This spool body 21 arrange the first end plate 25, Second end plate 24 and gripper shoe 23, the first end plate 25 of spool body 21 is by drum connection structure and reductor 1 Slow-speed shaft couple, the second end plate 24 of spool body 21 is fixing with gripper shoe 23 supports spool shaft 22, this volume Cylinder axle 22 is installed on drum support, installs very convenient.
As shown in Fig. 2-Fig. 9, this spool body 21 is arranged above with steel cable guide groove 211, it is simple to steel cable 10 is along steel Rope race 211 introduces/draws, and the most beneficially steel cable 10 is wound around in an orderly manner.
See Figure 10, it is shown that the structure of spool shaft of the present invention.This spool shaft 22 includes spool shaft main body 222, volume First end of cylinder axle main body 222 arranges first shaft shoulder 221, and the second end of spool shaft main body 222 arranges the second axle Shoulder 224 and the 3rd shaft shoulder 225, wherein, spool shaft main body 222, first shaft shoulder, 221, second shaft shoulder 224 and The external diameter of the 3rd shaft shoulder 225 is sequentially reduced, and arranges taper between spool shaft main body 222 and second shaft shoulder 224 Transition part 223, this spool shaft 22 structural strength is preferable, is also convenient for installing.
See Figure 11, it is shown that drum connection structure of the present invention.In this drum connection structure, couple semiaxis 84 by Cylinder roller bearing 87 is supported in connection dish 82, and the medial end coupling semiaxis 84 arranges baffle plate 86, couples Joint portion, the inner side inner cover plate 85 of semiaxis 84, cylinder roller bearing 87 and connection dish 82 blocks, and couples half Joint portion, the outside outer cover plate 83 of axle 84, cylinder roller bearing 87 and connection dish 82 blocks, connection dish 82 Fix with ring flange 81, the first end plate 25 that ring flange 81 is anchored on spool body 21.This structure couples Reliably, easy for installation.
See Figure 12, it is shown that the present invention presses rope structure.This pressure rope structure 11 includes steel cable pressing plate 111, steel cable pressure The lower surface of plate arranges steel cable indent 1121, and this steel cable pressing plate 111 is anchored on spool body 21 by bolt 112 Screw in so that steel cable 10 is reliably fixed to without deviating from spool body 21, thus increases safety Coefficient.
See Figure 13, it is shown that drum support of the present invention.In this drum support 4, support pedestal 41 On support bearing block 43 is set, spool shaft bearing 44 is supported in support bearing block 43, and spool shaft 22 passes through taper Roller bearing 45 is supported in spool shaft bearing 44, support bearing block 43, spool shaft bearing 44 and conical roller axle Hold joint portion, the inner side inner cover plate 42 of 45 to block, support bearing block 43, spool shaft bearing 44 and taper rolling Joint portion, the outside outer cover plate 47 of sub-bearing 45 blocks.This compact conformation, it is convenient to install.
As shown in figure 13, the present embodiment illustrates the mounting structure of lifting stop.In Figure 12, spool shaft 22 On spool shaft gusset piece 46 is set, in order to install lifting stop 12 drive end (as screw lifting spacing The rocking bar of device 12), when reel 2 rotational angle exceedes predetermined value (revolution), can disconnect electrical connection with Prevent reel from rotating further, so adjustable height can be limited.Below in conjunction with Figure 12-Figure 14, come Further describe.
See Figure 14-Figure 15, it is shown that the present invention lifts stop structure.With reference to Figure 12, this lifting is spacing Device 12 includes U-bracket 121, rocking bar 122, screw rod 123, runner 124, stop housing 125, guides Bar 126, push pedal 127, active conductive post 128, limit switch 129 and fixing conductive pole 120:U shape support 121 are fixed on the outer cover plate 47 being connected with spool shaft 22, and stop housing 125 is anchored on U-shaped by screw Support 121, screw rod 123 is supported on stop housing 125, and push pedal 127 is installed on screw rod 123, lives Moving conductive post 128 one end is connected to push pedal 127, and active conductive post 128 other end is supported in and stop housing On one arm of 125 limit switches 129 being connected, fixing conductive pole 120 is fixed on the another of limit switch 129 On one arm, runner 124 is installed on the end of screw rod 123, and one end of rocking bar 122 connects runner 124 prejudicially, The other end of rocking bar 122 is connected with spool shaft gusset piece 46.
Additionally, also install guide post 126 on stop pedestal 125, this guide post 126 is parallel with screw rod 123 Arranging, push pedal 127 is arranged in guide post 126 and slides, to ensure smoothly to move.
In this embodiment, the position of push pedal 127 can be pre-adjusted.When reel 2 scrolling, rocking bar 122 Rotating with spool shaft gusset piece 46, by runner 124, screw rod 123 is rotated, push pedal 127 translation drives lives Moving conductive post 128 departs from fixing conductive pole 120, thereby turns off electrical connection and plays position-limiting action, thus carries High safety performance.
The structure of lifting stop 12 is illustrated by Figure 14-Figure 15, and this lifting stop i.e. can be used for upper limit, Can also be used for lower limit.The control of the motor M01 that the limit switch that will lift stop is connected to hoist engine is returned Road, stops motor M01 operation, thus by triggering the motor protective circuit breaker in motor control loop Play safeguard protection effect.
The present invention is directed to prevent, the spacing situation of spacing appearance, carry out in terms of electric control system simultaneously Improve, be described as follows.
Referring also to Figure 16-Figure 17, it is shown that the circuit structure of motor stopping controlling organization of the present invention.This motor Halt control mechanism can be used for hoist engine it can also be used to other type of lowering or hoisting gear, and its electrical structure is: In the control loop of motor M01, between motor protective circuit breaker QF01 and converter VF01, add a contact Device KM01；Upper the next limit switch SQ01, SQ02 are connected in series in the control loop of this catalyst KM01. Herein, the terminal 1-6 of motor protective circuit breaker QF01, catalyst KM01 A1, A2 (three groups of terminals 1, 2), terminal R, S, T, V, W, PE of converter VF01, the end of limit switch SQ01, SQ02 Son 11,12, and the terminal 13,14 of spacing solution lock key knob SB01 is according to Figure 15 and Figure 16 connection, The most specifically launch explanation.
After limit switch SQ01 or SQ02 is triggered, directly cut off the coil electricity of catalyst KM01 Source, catalyst KM01 discharges, and thus cuts off the power supply in converter VF01 loop, thus quickly stops The operation of motor M01；Hereafter, can be unlocked by rotary stopper solution lock key knob SB01. This control mode, decreases the intermediate link processing limit signal so that the when that fault occurring, Motor can stop at once, it is to avoid the damage of equipment and the injures and deaths of personnel.
Changing the speed of hoist engine S3 for convenience, the present invention uses motor variable-frequency speed-regulating control.Below Illustrate.
See Figure 18, it is shown that the block diagram of motor speed regulation system of the present invention.This motor speed regulation system includes Power supply M03, converter M02 and the motor M01 coupled successively, this converter M02 use AC-DC-AC mode, is first converted into DC source industrial frequency AC power supply M03 by commutator, The most again by DC source by inverter be converted into frequency, the most controllable alternating current power supply of voltage for To motor M01, so by changing frequency to change the rotating speed of motor M01.
As shown in figure 18, the input stage of this converter M02 is provided with filtering decoupling circuit, and it is preferably RC filters decoupling circuit, and current-limiting resistance R and filter capacitor C by concatenating are constituted, so that supply Electricity power supply M03 output plus terminal and output terminate current-limiting resistance R and filter capacitor C into concatenation. This filtering decoupling circuit, as the preposition simulation low-pass filter of AC signal input channel, has concurrently anti-dry The effect disturbed；Access decoupling capacitance between two terminals of alternating current-direct current signal input channel, can be high frequency differential mode Interference signal provides bypass.
See Figure 19, it is shown that the schematic block circuit diagram of converter of the present invention.The converter M02 of the present embodiment Including rectification circuit M021, power factor correction circuit M022, filter circuit M023, inverter circuit The parts such as M024 and microcontroller circuit M025, man-machine interface circuit M026, wherein: rectification circuit M021 is formed (preferably full bridge rectifier) by commutation diode or bridge heap, including necessary interference filter Except circuit, its major function is that alternating current is converted to unidirectional current；Circuit of power factor correction M022 is can Selecting parts, be made up of power semiconductor and control chip, it is also connected to the power of microcontroller circuit M025 Factor correction end, effect is to make input current close to sinusoidal wave, reduces mains by harmonics content, it is achieved improve The purpose of power factor；Filter circuit M023 (preferably RC filter circuit) is main by electrochemical capacitor etc. Element forms, and completes galvanic filtering and energy storage effect；Inverter circuit M024 is by power model And drive circuit composition, its power model can be that intelligent power drives die, and it is also connected to described micro- The driving signal end of processor circuit, its major function is, completes the unidirectional current conversion to three-phase alternating current, Realize frequency modulation and voltage modulation purpose；Microcontroller circuit M025 is made up of microprocessor (DSP) and peripheral circuit, Its order sent according to man-machine interface circuit M026, sends the command signal of correspondence, controls power factor Correcting circuit M022 and inverter circuit M024 work, and according to electronic feedback information, carry out the electricity of necessity Road protection and troubleshooting.So, this embodiment controls the defeated of converter M02 by microcontroller circuit Exit pattern, is conducive to neatly by pre-provisioning request output voltage, thus meets the demand of different user.
See Figure 20, it is shown that the circuit theory diagrams of inverter of the present invention.It is particularly used for the inverse of motor M01 Power transformation road M024 and the example of microcontroller circuit, its working method is: civil power is through rectification circuit M021 Become unidirectional current, after being filtered by electrochemical capacitor, access the power input of inverter circuit M024, its electricity Filter capacitor is accessed between the input of source.And the microprocessor of microcontroller circuit is according to man-machine interface circuit Set signal, motor M01 is controlled.
In the present embodiment, inverter circuit M024 includes power tube driving chip, and this power tube driving chip connects Microprocessor (MCU/DSP) to microcontroller circuit, in order to according to the pulse width of microprocessor output Degree modulated signal, drives corresponding power tube alternate conduction and shutoff.Concrete, described inverter circuit M024 includes six power tube Q1～Q6, and these six power tubes are divided into three groups, and every group power controls three One phase winding of phase motor M01.
The concrete connected mode of each power tube is: the source electrode of power tube Q1, Q2, Q3 connects unidirectional current jointly The one end in source, the drain electrode of power tube Q4, Q5, Q6 meets the other end of DC source, power tube Q1 jointly Drain electrode and the junction point of source electrode of power tube Q4 connect the U phase terminal of motor, the drain electrode of power tube Q2 and merit The junction point of the source electrode of rate pipe Q5 connects the V phase terminal of motor, the drain electrode of power tube Q3 and the source of power tube Q6 Pole junction point connects the W phase terminal of motor；The grid of power tube Q1, Q2, Q3, Q4, Q5, Q6 is respectively Connecing an outfan of power tube driving chip, each input of this power tube driving chip is respectively by micro- Processor circuit output pulse width regulation signal PWM1, PWM2, PWM3, PWM4, PWM5, PWM6 Zhong mono-tunnel controls.These six power tube Q1～Q6 source electrode and drain electrode between corresponding access two Pole pipe D1～D6.
During start, microprocessor produces corresponding 6 tunnel pulse width modulation letters according to the motor speed set Number, i.e. drive signal PWM1～PWM6；The 6 of inverter M024 are driven by power tube driving chip Individual power tube (MOSFET or IGBT) Q1～Q6；The alternate conduction of these power tubes and shutoff, produce Raw three-phase modulations waveform, output voltage is adjustable, the three-phase alternating current of changeable frequency, output to motor M01 U, V, W terminals, thus realize the stepless frequency control of motor M01.
Although the present invention is open as above with preferred embodiment, but it is not for limiting the present invention, any this area Technical staff without departing from the spirit and scope of the present invention, can make possible variation and amendment, therefore originally The protection domain of invention should be defined in the range of standard with the claims in the present invention.

Claims (9)

1. a jib crane, it is characterised in that include chassis, turntable, hoist engine, landing oil cylinder, Jib, suspension hook, turntable is installed on chassis, and hoist engine is installed on turntable, and the head end of jib is articulated with turntable, suspension hook Hanging on the tail end of jib, one end of landing oil cylinder is articulated with turntable, and the other end of landing oil cylinder is articulated with jib； Hoist engine is provided with driving means, coiler device, brake unit and controls device, and driving means is provided with and depends on The motor of secondary connection, shaft coupling and reductor, the reel of coiler device is in transmission connection in reductor, coiler device Steel cable is wound on reel, top sheave group and downslide wheels and carries out folding and unfolding, and the brake of brake unit acts on deceleration The high speed shaft of machine, to hold the braked wheel on reductor high speed shaft tightly when braking, controls the motor inverter handle of device Industrial frequency AC power supply is converted into DC source, the most again DC source is converted into frequency, voltage can The alternating current power supply of control to be existed electric machine speed regulation, the motor control loop controlling device by change frequency to motor Series contactor between motor protective circuit breaker and converter, upper the next limit switch is connected in series to catalyst Control loop；Steel cable is wound in the structure of reel, top sheave group and downslide wheels: steel cable is led from reel first Rope inverse position clockwise lay out, walk around the most counterclockwise the first lower sheave, the first top sheave, the second lower sheave, Second top sheave, then after walking around the 3rd lower sheave, the 3rd top sheave, the 4th lower sheave the most clockwise, during another mistake Pin wraparound reel the second conductor rope position；First end of steel cable is around in the first end of reel and is fixed on the first pressure rope position Putting, the second end of steel cable is around in the second end of reel and is fixed on reel the second pressure rope position.
2. jib crane as claimed in claim 1, it is characterised in that reel includes spool body and reel Axle；The top, two ends of spool body is respectively provided with pressure rope structure, and the first end plate of spool body passes through drum connection structure Coupling with the slow-speed shaft of reductor, the second end plate of spool body and gripper shoe fix the first end supporting spool shaft, Second end of spool shaft is supported in drum support.
3. jib crane as claimed in claim 2, it is characterised in that under the steel cable pressing plate of pressure rope structure Surface configuration steel cable indent, this steel cable pressing plate is fastened by bolts in the screw of spool body so that steel cable is consolidated Due to spool body；Wherein, spool body arranges steel cable guide groove so that steel cable introduces along steel cable guide groove/draws.
4. jib crane as claimed in claim 3, it is characterised in that the connection of drum connection structure half Axle is supported in connection dish by cylinder roller bearing, and the medial end coupling semiaxis arranges baffle plate, couple semiaxis, The joint portion, inner side of cylinder roller bearing and connection dish with inner cover plate block, couple semiaxis, cylinder roller bearing and The joint portion, outside of connection dish outer cover plate blocks, and connection dish is fixed with ring flange, and ring flange is anchored on spool body On the first end plate.
5. jib crane as claimed in claim 4 a, it is characterised in that support group of drum support Arranging support bearing block on Zuo, spool shaft bearing is supported in support bearing block, and spool shaft passes through tapered roller bearing Being supported in spool shaft bearing, the joint portion, inner side of support bearing block, spool shaft bearing and tapered roller bearing is with interior Cover plate blocks, and joint portion, the outside outer cover plate of support bearing block, spool shaft bearing and tapered roller bearing blocks.
6. jib crane as claimed in claim 5, it is characterised in that spool shaft is set in spool shaft and couples Plate is to couple lifting stop drive end；The U-bracket of this lifting stop is fixed on the enclosing cover of drum support Plate, stop housing is anchored on U-bracket by screw, and screw support is on limit switch, and push pedal is installed on spiral shell On bar, active conductive post one end is connected to push pedal, and the active conductive post other end is supported in the limit being connected with limit switch On one arm of bit switch, fixing conductive pole is fixed on another arm of limit switch, and runner is installed on screw rod End, one end of rocking bar connects runner prejudicially, and the other end of rocking bar is connected with spool shaft gusset piece；Stop shell Installing guide post on body, this guide post be arranged in parallel with screw rod, and push pedal is arranged in guide post and slides.
7. jib crane as claimed in claim 6, it is characterised in that converter is provided with filtering and moves back Coupling circuit, rectification circuit, filter circuit, inverter circuit, power factor correction circuit, microprocessor Circuit and man-machine interface circuit, filtering decoupling circuit is arranged at the input stage of converter, rectification circuit, Filter circuit and inverter circuit are sequentially connected, and power factor correction circuit is arranged at rectification circuit and filtering Between circuit and be connected to the Active PFC end of microcontroller circuit, inverter circuit is connected to microprocessor The driving signal end of circuit, man-machine interface circuit is connected to the input of microcontroller circuit.
8. jib crane as claimed in claim 7, it is characterised in that inverter circuit includes power tube Driving chip and six power tubes: power tube driving chip is connected to the microprocessor of microcontroller circuit, So that the pulse width modulating signal according to microprocessor output drives the power tube alternate conduction of correspondence And shutoff；Six power tubes are divided into three groups, and every group power controls a phase winding of motor, Mei Gegong Corresponding access diode between source electrode and the drain electrode of rate pipe.
9. jib crane as claimed in claim 8, it is characterised in that in described brake, the first system Swing arm, the first brake arm, the driving telescopic rod of band driving means, one end of driven expansion link are hingedly connected to system Dynamic seat；First brake arm, driving telescopic rod, the other end of driven expansion link are hingedly connected to the one of L-shaped connecting rod Arm；The other end of the second brake arm and linear rod hinge connection, another of the other end of linear connecting rod and L-shaped connecting rod Arm is hinged；First brake block is installed on the inner side of the first brake arm, and the second brake block is installed on the second brake arm Inner side, the intrados of this first brake block and the intrados of the second brake block hold reductor high speed shaft tightly when braking On braked wheel.
CN201510256850.2A 2015-05-20 2015-05-20 Jib crane Active CN104973522B (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
CN201610825285.1A CN106402203B (en) 2015-05-20 2015-05-20 Arm crane with brake
CN201610825078.6A CN106629440B (en) 2015-05-20 2015-05-20 A kind of jib crane of configuration pressure rope structure
CN201610825170.2A CN106276654A (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing reel mounting structure
CN201610824409.4A CN106276653B (en) 2015-05-20 2015-05-20 Arm crane with novel frequency converter
CN201610824850.2A CN106429923A (en) 2015-05-20 2015-05-20 Novel arm type crane
CN201610824425.3A CN106379817B (en) 2015-05-20 2015-05-20 A kind of hoist engine
CN201610824421.5A CN106348190B (en) 2015-05-20 2015-05-20 A kind of hoist engine
CN201610826168.7A CN106395647B (en) 2015-05-20 2015-05-20 A kind of jib crane with new type inverter
CN201610828269.8A CN106276636B (en) 2015-05-20 2015-05-20 A kind of motor stopping control mechanism
CN201610824407.5A CN106429895B (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing steel cable winding arrangement
CN201610824858.9A CN106395646B (en) 2015-05-20 2015-05-20 A kind of jib crane
CN201610828294.6A CN106348187B (en) 2015-05-20 2015-05-20 A kind of jib crane with reel
CN201610826170.4A CN106395648A (en) 2015-05-20 2015-05-20 Jig hoist provided with optimized coiling block connecting structure
CN201610825105.XA CN106276635B (en) 2015-05-20 2015-05-20 A kind of jib crane configuring novel winding drum
CN201610824877.1A CN106379818B (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing drum support
CN201610828215.1A CN106379820B (en) 2015-05-20 2015-05-20 A kind of jib crane configuring shutdown control system
CN201510256850.2A CN104973522B (en) 2015-05-20 2015-05-20 Jib crane
CN201610825102.6A CN106429924A (en) 2015-05-20 2015-05-20 Arm type crane for optimizing lifting limiter
CN201610828346.XA CN106335850B (en) 2015-05-20 2015-05-20 A kind of brake
CN201610828104.0A CN106379819B (en) 2015-05-20 2015-05-20 A kind of motor speed regulation system
CN201610828338.5A CN106379826B (en) 2015-05-20 2015-05-20 A kind of reel

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Application Number Priority Date Filing Date Title
CN201510256850.2A CN104973522B (en) 2015-05-20 2015-05-20 Jib crane

Related Child Applications (20)

Application Number Title Priority Date Filing Date
CN201610828104.0A Division CN106379819B (en) 2015-05-20 2015-05-20 A kind of motor speed regulation system
CN201610824858.9A Division CN106395646B (en) 2015-05-20 2015-05-20 A kind of jib crane
CN201610826168.7A Division CN106395647B (en) 2015-05-20 2015-05-20 A kind of jib crane with new type inverter
CN201610824407.5A Division CN106429895B (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing steel cable winding arrangement
CN201610825170.2A Division CN106276654A (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing reel mounting structure
CN201610825078.6A Division CN106629440B (en) 2015-05-20 2015-05-20 A kind of jib crane of configuration pressure rope structure
CN201610825105.XA Division CN106276635B (en) 2015-05-20 2015-05-20 A kind of jib crane configuring novel winding drum
CN201610824421.5A Division CN106348190B (en) 2015-05-20 2015-05-20 A kind of hoist engine
CN201610828215.1A Division CN106379820B (en) 2015-05-20 2015-05-20 A kind of jib crane configuring shutdown control system
CN201610824409.4A Division CN106276653B (en) 2015-05-20 2015-05-20 Arm crane with novel frequency converter
CN201610828269.8A Division CN106276636B (en) 2015-05-20 2015-05-20 A kind of motor stopping control mechanism
CN201610828294.6A Division CN106348187B (en) 2015-05-20 2015-05-20 A kind of jib crane with reel
CN201610828338.5A Division CN106379826B (en) 2015-05-20 2015-05-20 A kind of reel
CN201610828346.XA Division CN106335850B (en) 2015-05-20 2015-05-20 A kind of brake
CN201610824877.1A Division CN106379818B (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing drum support
CN201610826170.4A Division CN106395648A (en) 2015-05-20 2015-05-20 Jig hoist provided with optimized coiling block connecting structure
CN201610825102.6A Division CN106429924A (en) 2015-05-20 2015-05-20 Arm type crane for optimizing lifting limiter
CN201610825285.1A Division CN106402203B (en) 2015-05-20 2015-05-20 Arm crane with brake
CN201610824425.3A Division CN106379817B (en) 2015-05-20 2015-05-20 A kind of hoist engine
CN201610824850.2A Division CN106429923A (en) 2015-05-20 2015-05-20 Novel arm type crane

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CN104973522A CN104973522A (en) 2015-10-14
CN104973522B true CN104973522B (en) 2016-11-23

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Family Applications (21)

Application Number Title Priority Date Filing Date
CN201610826170.4A Pending CN106395648A (en) 2015-05-20 2015-05-20 Jig hoist provided with optimized coiling block connecting structure
CN201610825078.6A Active CN106629440B (en) 2015-05-20 2015-05-20 A kind of jib crane of configuration pressure rope structure
CN201510256850.2A Active CN104973522B (en) 2015-05-20 2015-05-20 Jib crane
CN201610824858.9A Active CN106395646B (en) 2015-05-20 2015-05-20 A kind of jib crane
CN201610828338.5A Active CN106379826B (en) 2015-05-20 2015-05-20 A kind of reel
CN201610828346.XA Active CN106335850B (en) 2015-05-20 2015-05-20 A kind of brake
CN201610825285.1A Active CN106402203B (en) 2015-05-20 2015-05-20 Arm crane with brake
CN201610828294.6A Active CN106348187B (en) 2015-05-20 2015-05-20 A kind of jib crane with reel
CN201610825170.2A Pending CN106276654A (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing reel mounting structure
CN201610824421.5A Active CN106348190B (en) 2015-05-20 2015-05-20 A kind of hoist engine
CN201610825102.6A Pending CN106429924A (en) 2015-05-20 2015-05-20 Arm type crane for optimizing lifting limiter
CN201610824409.4A Active CN106276653B (en) 2015-05-20 2015-05-20 Arm crane with novel frequency converter
CN201610828215.1A Active CN106379820B (en) 2015-05-20 2015-05-20 A kind of jib crane configuring shutdown control system
CN201610828269.8A Active CN106276636B (en) 2015-05-20 2015-05-20 A kind of motor stopping control mechanism
CN201610825105.XA Active CN106276635B (en) 2015-05-20 2015-05-20 A kind of jib crane configuring novel winding drum
CN201610824877.1A Active CN106379818B (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing drum support
CN201610824407.5A Active CN106429895B (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing steel cable winding arrangement
CN201610828104.0A Active CN106379819B (en) 2015-05-20 2015-05-20 A kind of motor speed regulation system
CN201610824850.2A Pending CN106429923A (en) 2015-05-20 2015-05-20 Novel arm type crane
CN201610824425.3A Active CN106379817B (en) 2015-05-20 2015-05-20 A kind of hoist engine
CN201610826168.7A Active CN106395647B (en) 2015-05-20 2015-05-20 A kind of jib crane with new type inverter

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CN201610828346.XA Active CN106335850B (en) 2015-05-20 2015-05-20 A kind of brake
CN201610825285.1A Active CN106402203B (en) 2015-05-20 2015-05-20 Arm crane with brake
CN201610828294.6A Active CN106348187B (en) 2015-05-20 2015-05-20 A kind of jib crane with reel
CN201610825170.2A Pending CN106276654A (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing reel mounting structure
CN201610824421.5A Active CN106348190B (en) 2015-05-20 2015-05-20 A kind of hoist engine
CN201610825102.6A Pending CN106429924A (en) 2015-05-20 2015-05-20 Arm type crane for optimizing lifting limiter
CN201610824409.4A Active CN106276653B (en) 2015-05-20 2015-05-20 Arm crane with novel frequency converter
CN201610828215.1A Active CN106379820B (en) 2015-05-20 2015-05-20 A kind of jib crane configuring shutdown control system
CN201610828269.8A Active CN106276636B (en) 2015-05-20 2015-05-20 A kind of motor stopping control mechanism
CN201610825105.XA Active CN106276635B (en) 2015-05-20 2015-05-20 A kind of jib crane configuring novel winding drum
CN201610824877.1A Active CN106379818B (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing drum support
CN201610824407.5A Active CN106429895B (en) 2015-05-20 2015-05-20 A kind of jib crane optimizing steel cable winding arrangement
CN201610828104.0A Active CN106379819B (en) 2015-05-20 2015-05-20 A kind of motor speed regulation system
CN201610824850.2A Pending CN106429923A (en) 2015-05-20 2015-05-20 Novel arm type crane
CN201610824425.3A Active CN106379817B (en) 2015-05-20 2015-05-20 A kind of hoist engine
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