CN106395646A - Jib hoist configured with novel lift limiter - Google Patents

Jib hoist configured with novel lift limiter Download PDF

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Publication number
CN106395646A
CN106395646A CN201610824858.9A CN201610824858A CN106395646A CN 106395646 A CN106395646 A CN 106395646A CN 201610824858 A CN201610824858 A CN 201610824858A CN 106395646 A CN106395646 A CN 106395646A
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CN
China
Prior art keywords
reel
motor
reductor
limit switch
stop
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Granted
Application number
CN201610824858.9A
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Chinese (zh)
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CN106395646B (en
Inventor
鲁霄钢
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SUZHOU DACHENG YOUFANG DATA TECHNOLOGY Co.,Ltd.
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鲁霄钢
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Priority to CN201610824858.9A priority Critical patent/CN106395646B/en
Publication of CN106395646A publication Critical patent/CN106395646A/en
Application granted granted Critical
Publication of CN106395646B publication Critical patent/CN106395646B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • 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
    • 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
    • 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
    • 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 invention discloses a jib hoist configured with a novel lift limiter. The lift limiter comprises a U-shaped bracket, a rocker, a screw rod, a runner, a limiter housing, a push plate, a movable conductive pillar, a limit switch and a fixed conductive pillar, wherein the U-shaped bracket is fixed on an outer cover plate connected with a drum shaft; the limiter housing is fastened on the U-shaped bracket through screws; the screw rod is supported on the limiter housing; the push plate is mounted on the screw rod; one end of the movable conductive pillar is connected with the push plate, and the other end of the movable conductive pillar is supported on one arm of the limit switch fixedly connected with the limiter housing; the fixed conductive pillar is fixed on the other arm of the limit switch; the runner is mounted at the end part of the screw rod; and one end of the rocker is eccentrically connected with the runner, and the other end of the rocker is connected with a drum shaft connecting plate. The jib hoist provided by the invention is improved in product performance.

Description

A kind of jib crane of configuration novel elevating stop
The present invention is the number of patent application that applicant proposed on 05 20th, 2015 is " 201510256850.2 ", title For the divisional application of the Chinese invention patent application of " jib crane ", entire contents are incorporated among the application.
Technical field
The present invention relates to hoisting machinery, more particularly, to a kind of jib crane and its subsystem or part.
Background technology
Jib crane includes lifting mechanism, jib lubbing mechanism, rotating mechanism etc., relies on the interoperation of these mechanisms, can Make weight lifting and carrying in certain cylindrical space.The lifting mechanism of jib crane includes hoist engine, by folding and unfolding The steel cable being around on reel is lifting by crane workpiece.There is certain deficiency in existing boom type hoist engine design：For example, the volume of reel Cylinder, reel axle construction are complex, install not inconvenience；And for example, the braking effect of brake is not ideal enough, limit of stopping up and down Position device easily lost efficacy it is possible to cause security incident；For another example, steel cable winding method is not reasonable, steel cable sometimes and unclamps Or the problem being intertwined, thereby increase potential safety hazard；Additionally, elevator motor speed can not be conveniently adjusted；Etc..There is mirror In above-mentioned all many deficiencies it is necessary to be improved to crane and its hoist engine.
Content of the invention
The defect existing for prior art, the purpose of the embodiment of the present invention is to improve the whole machine of jib crane, point is System or part, so that the performance of improving product.
For solving above technical problem, the embodiment of the present invention provides a kind of arm-type lifting of configuration novel elevating stop Machine, including chassis, turntable, hoist engine, landing oil cylinder, arm support, suspension hook, turntable is installed on chassis, and hoist engine is installed on turntable, arm The head end of frame is articulated with turntable, and suspension hook hangs on the tail end of arm support, and one end of landing oil cylinder is articulated with turntable, landing oil cylinder another One end is articulated with arm support, and hoist engine is provided with driving means, coiler device, brake unit and control device：Driving means are arranged There are motor, shaft coupling and reductor, reductor is installed on upper rack, the high speed shaft of reductor passes through the dynamic of shaft coupling and motor Power output shaft connects；The drum support of coiler device is installed on upper rack, and one end of reel is rotationally connected with reel and props up Support structure, the other end of reel is in transmission connection in the slow-speed shaft of reductor, the top sheave of coiler device by drum connection structure Group is positioned frame, and steel cable is wound in reel, top sheave group and lower sheave group, wherein steel cable from reel the first conductor rope inverse position when Pin direction lays out, and bypasses the first lower sheave, the first top sheave, the second lower sheave, the second top sheave successively counterclockwise, more suitable successively Hour hands bypass the 3rd lower sheave, the 3rd top sheave, after the 4th lower sheave, another mistake hour hands wraparound reel the second conductor rope position, and steel The first end of rope is around in the first end of reel and is fixed on the first pressure rope position, and the second end of steel cable is around in the second end of reel simultaneously It is fixed on reel second pressure rope position；The brake of brake unit is installed on the high speed shaft of reductor, by holding braked wheel tightly And make reductor braking；Control device setting converter comes to electric machine speed regulation, and motor control loop is in electric motor protecting open circuit Series contactor between device and converter, upper bottom limit switch is connected in series to the control loop of catalyst；Upper bottom limit switch Using lifting stop, lifting stop includes U-bracket, rocking bar, screw rod, runner, stop housing, guide post, push pedal, work Moving conductive post, limit switch and fixing conductive pole：U-bracket is fixed on the outer cover plate being connected with spool shaft, and stop housing leads to Cross screw and be anchored on U-bracket, on stop housing, push pedal is installed on screw rod screw support, active conductive post one end is even It is connected to push pedal, the active conductive post other end is supported on an arm of the limit switch being connected with stop housing, fixing conductive Post is fixed on another arm of limit switch, and runner is installed on the end of screw rod, and one end of rocking bar prejudicially connects runner, shakes The other end of bar is connected with spool shaft gusset piece.
Compared with prior art, the embodiment of the present invention is improved to jib crane, thus can improve product Can, its performance is in the following areas：Optimize lifting drum body, spool shaft and its roll support, draw bail, reel layout is more Rationally, structure is more compact, installs also convenient；Improve spool body structure and steel cable canoe and pressure rope structure, permissible The problem preferably avoiding steel cable to unclamp or be intertwined, is conducive to eliminating safe hidden trouble；Improve brake, lifting stop And motor stopping controlling organization, spacing, stop in emergency when can according to predetermined be intended to stop in time, braking, thus It is effectively reduced security incident；Using converter to hoist engine electric machine speed regulation, lifting velocity can be controlled with aspect.
Brief description
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 the schematic diagram of drum connection structure, pressure rope structure and 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 presses rope structure schematic diagram for the present invention；
Figure 13 is drum support schematic diagram of the present invention；
Figure 14 lifts the schematic diagram of stop for the present invention；
Figure 15 lifts the internal structure schematic diagram of stop for the present invention；
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.
Specific embodiment
The know-why of embodiment and work process for a better understanding of the present invention, below in conjunction with accompanying drawing and be embodied as Example to describe the present invention further.
Fig. 1-Figure 20 is indicated to the structure of hoist engine of the present invention, subsystem or part, identical label table therein It is shown as same parts.
Referring to Fig. 1, the structure of jib crane of the present invention is shown.This jib crane includes chassis S1, turntable S2, elevator Machine S3, landing oil cylinder S4, the part such as arm support S5, suspension hook S6, turntable S2 is loaded on chassis S1, and hoist engine S3 is loaded on turntable, arm support S5 Head end be articulated with turntable S2, suspension hook 6 hangs on the tail end of arm support S5, and one end of landing oil cylinder S4 is articulated with turntable S2, landing The other end of oil cylinder S4 is articulated with arm support S5.Turntable S2 rotates and arm support S5 is rotated, and oil cylinder S4 stretches and makes arm support S5 landing, Speed change oil cylinder (not shown) makes arm support S5 luffing, and hoist engine S3 folding and unfolding is around in reel, arm support assembly pulley and lifting hook pulley group Steel cable lifting by crane the workpiece on suspension hook S6.The present invention has carried out many places improvement for hoist engine S3 and its subsystem and part, Further explained below.
Referring also to Fig. 2-Fig. 4, illustrates the complete machine structure of hoist engine of the present invention.This hoist engine includes driving means, winding Device, brake unit and control device (not shown)：Driving means by motor M01 (preferably frequency conversion motor), shaft coupling 7, Reductor 1 grade part is constituted, and motor M01, shaft coupling 7, reductor 1 couple successively；Coiler device by reel 2, top sheave group 3 and The part such as lower sheave group and steel cable is constituted, and reel 2 is in transmission connection in reductor 1 so that reel 2 turns around, and steel cable is wound in reel 2nd, carry out folding and unfolding in top sheave group 3 and lower sheave group；Brake unit is made up of brake 5 and adnexa etc., and brake 5 acts on and subtracts It is braked on the high speed shaft of fast machine 1 or slow-speed shaft；Control device is provided with motor stopping controlling organization, and this motor stopping controls Mechanism stops motor operation in 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 on frame S01 top, one end of reel 2 is rotationally connected with drum support 4, and the other end of reel 2 is driven by drum connection structure 8 It is connected to the slow-speed shaft of reductor 1, the high speed shaft of reductor 1 is by shaft coupling (outside is provided with shaft coupling clamshell) 7 and motor M01 Power output shaft connect；Top sheave group 3 is positioned frame S01, steel cable with certain style canoe be wound in reel 2, on Assembly pulley 3 and lower sheave group, accordingly carry out folding and unfolding in motor M01 forward or reverse；Brake 5 is installed on reductor 1, system The braked wheel 6 on reductor 1 high speed shaft can be held when dynamic tightly and be braked.
In this hoist engine, optimize spool body, spool shaft and its roll support, draw bail, reel layout is more reasonable, Structure is more compact, installs also convenient；Improve spool body structure and steel cable canoe and Ya Sheng mechanism rotate, can be more preferable The problem that avoids 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 according to predetermined be intended to stop in time, braking, thus having Effect ground reduces 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, is made by holding tightly Driving wheel 6 and reductor 1 is braked, and so that the reel 2 on the slow-speed shaft of reductor 1 is braked.Further below to system The structure of dynamic device is described in detail.
Referring to Fig. 5, the structure of brake of the present invention is shown.In this brake 5, the first brake arm 52, the first brake arm 53, Driving telescopic rod with driving means 50 (can be cylinder or oil cylinder) 59, one end of driven expansion link 58 are hingedly connected to Brake Block 51；First brake arm 52, driving telescopic rod 59, the other end of driven expansion link 58 are hingedly connected to an arm of L-shaped connecting rod 57；The The other end of two brake arms 53 is hinged with linear connecting rod 55, and 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 on the inner side of the first brake arm 52, and the second brake block 54 is installed on the inner side of the second brake arm 53, should The intrados of the intrados of the first brake block 56 and the second brake block 54 holds the braked wheel on reductor 1 high speed shaft tightly in braking 6.This mode of braking structure is simple, and braking response is fast, and effect is preferable.
Referring to Fig. 6, steel cable winding arrangement of the present invention is shown.In this steel cable winding arrangement, steel cable 10 is twined by following manner It is around in reel 2, top sheave (arm support pulley) group 3 and lower sheave (lifting hook pulley) group 9：The first end of steel cable 10 is around in reel 2 First end is simultaneously fixed on the first pressure rope position 2a, and the second end of steel cable 10 is around in the second end of reel 2 and is fixed on reel 2 second Pressure rope position 2d, steel cable 10 lays out from reel 2 first conductor rope position 2b counter clockwise direction, bypasses the first lower sheave successively counterclockwise 91st, the first top sheave 31, the second lower sheave 92, the second top sheave 32, then bypass clockwise successively on the 3rd lower sheave the 93, the 3rd After pulley 33, the 4th lower sheave 94, another mistake hour hands wraparound reel 2 second conductor rope position 2c.Steel cable 10 adopts this canoe, The probability of occurrence that steel cable such as was wound around, unclamps at the bad phenomenon can be reduced.
Referring to Fig. 7, reel of the present invention and drum connection structure, pressure rope structure and drum support are shown.Reel 2 includes Spool body 21 and spool shaft 22, the first end of this spool shaft 22 is fixedly supported to the second end of spool body 21, and the of spool body 21 One end is coupled with the slow-speed shaft of reductor 1 by drum connection structure (the I part in Fig. 6), and the second end of spool shaft 22 supports In drum support (the III part in Fig. 6), install very convenient.Additionally, the two ends top of spool body 21 sets respectively Put pressure rope structure (the II part in Fig. 6), can preferably fix the end of steel cable 10.
Referring also to 8- Fig. 9, illustrates the structure of reel of the present invention.This spool body 21 setting first end plate 25, the second end plate 24 are coupled with the slow-speed shaft of reductor 1 by drum connection structure with gripper shoe 23, the first end plate 25 of spool body 21, spool body 21 the second end plate 24 is fixing with gripper shoe 23 to support spool shaft 22, and this spool shaft 22 is installed on drum support, installs Come very convenient.
As shown in Fig. 2-Fig. 9, this spool body 21 setting steel cable guide groove 211 above, it is easy to steel cable 10 along steel cable guide groove 211 Introduce/draw, be thus conducive to steel cable 10 to be wound around in an orderly manner.
Referring to Figure 10, the structure of spool shaft of the present invention is shown.This spool shaft 22 includes spool shaft main body 222, spool shaft master The first end of body 222 arranges first shaft shoulder 221, and the second end of spool shaft main body 222 arranges second shaft shoulder 224 and the 3rd shaft shoulder 225, wherein, spool shaft main body 222, the external diameter of first shaft shoulder 221, second shaft shoulder 224 and the 3rd shaft shoulder 225 are sequentially reduced, and Tapered transitional 223 is set between spool shaft main body 222 and second shaft shoulder 224, and this spool shaft 22 structural strength is preferably, also square Just install.
Referring to Figure 11, drum connection structure of the present invention is shown.In this drum connection structure, connection semiaxis 84 is by cylindrical roller Bearing 87 is supported in terminal pad 82, and the medial end setting baffle plate 86 of connection semiaxis 84, connection semiaxis 84, cylinder roller bearing 87 and the inner side joint portion inner cover plate 85 of terminal pad 82 block, connection semiaxis 84, cylinder roller bearing 87 and terminal pad 82 Outside joint portion outer cover plate 83 blocks, and terminal pad 82 is fixing with ring flange 81, and ring flange 81 is anchored on spool body 21 the End plate 25.This structure connection is reliable, easy for installation.
Referring to Figure 12, present invention pressure rope structure is shown.This pressure rope structure 11 includes steel cable pressing plate 111, under steel cable pressing plate Surface arranges steel cable indent 1121, and this steel cable pressing plate 111 is anchored in the screw of spool body 21 by bolt 112 so that steel cable 10 are reliably fixed on spool body 21 without deviating from, and thus increase safety coefficient.
Referring to Figure 13, drum support of the present invention is shown.In this drum support 4, the machine that arranges is supported on pedestal 41 Seat bearing block 43, reel bearing block 44 is supported in support bearing block 43, and spool shaft 22 is supported in volume by tapered roller bearing 45 Cylinder bearing block 44, support bearing block 43, inner side joint portion inner cover plate 42 envelope of reel bearing block 44 and tapered roller bearing 45 Stifled, support bearing block 43, the outside joint portion outer cover plate 47 of reel bearing block 44 and tapered roller bearing 45 blocks.This knot Structure is compact, and it is convenient to install.
As shown in figure 13, the present embodiment illustrates to lift the mounting structure of stop.In Figure 12, spool shaft 22 arranges reel Axle gusset piece 46, in order to install the drive end (as screw lifts the rocking bar of stop 12) of lifting stop 12, on 2 turns of reel When dynamic angle exceedes predetermined value (revolution), electrical connection can be disconnected to prevent reel from rotating further, so can be to lifting Highly limited.Below in conjunction with Figure 12-Figure 14, to further describe.
Referring to Figure 14-Figure 15, present invention lifting stop structure is shown.With reference to Figure 12, this lifting stop 12 wraps Include U-bracket 121, rocking bar 122, screw rod 123, runner 124, stop housing 125, guide post 126, push pedal 127, active conductive Post 128, limit switch 129 and fixing conductive pole 120：U-bracket 121 is fixed on the outer cover plate 47 being connected with spool shaft 22, limit Position device housing 125 is anchored on U-bracket 121 by screw, and screw rod 123 is supported on stop housing 125, and push pedal 127 is installed On screw rod 123, active conductive post 128 one end is connected to push pedal 127, and active conductive post 128 other end is supported in and stop On the arm of limit switch 129 that housing 125 is connected, fixing conductive pole 120 is fixed on another arm of limit switch 129 On, runner 124 is installed on the end of screw rod 123, and one end of rocking bar 122 prejudicially connects runner 124, the other end of rocking bar 122 It is connected with spool shaft gusset piece 46.
Additionally, also installing guide post 126 on stop housing 125, this guide post 126 and screw rod 123 be arranged in parallel, push pedal 127 are arranged in guide post 126 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 is with spool shaft Gusset piece 46 rotates, and by runner 124, screw rod 123 is rotated, and push pedal 127 translation drives active conductive post 128 to depart from and fixes Conductive pole 120, thereby turns off electrical connection and plays position-limiting action, thus improves security performance.
Figure 14-Figure 15 is illustrated to the structure of lifting stop 12, and this lifting stop can be used for upper limit, Can be used for lower limit.Will lift stop limit switch be connected to hoist engine motor M01 control loop, by triggering electricity Motor protective circuit breaker in machine control loop, to stop motor M01 operation, thus plays safeguard protection effect.
The present invention is directed to be prevented, the spacing situation of spacing appearance, is improved, tool in terms of electric control system simultaneously Body is described as follows.
Referring also to Figure 16-Figure 17, illustrates the circuit structure of motor stopping controlling organization of the present invention.This motor stopping controls Mechanism can be used for hoist engine it can also be used to other types of lowering or hoisting gear, and its electrical structure is：Control loop in motor M01 In, add a catalyst KM01 between motor protective circuit breaker QF01 and converter VF01；Upper the next limit switch SQ01, SQ02 It is connected in series in the control loop of this catalyst KM01.Herein, the terminal 1-6 of motor protective circuit breaker QF01, catalyst KM01's A1, A2 (three groups of terminals 1,2), terminal R, S, T, V, W, PE of converter VF01, the terminal 11,12 of limit switch SQ01, SQ02, And the terminal 13,14 of spacing solution lock key knob SB01 connects according to Figure 15 and Figure 16, no longer concrete launch explanation.
After limit switch SQ01 or SQ02 is triggered, directly cut off the coil power of catalyst KM01, catalyst KM01 Release, thus cuts off the power supply in converter VF01 loop, thus quickly stopping the operation of motor M01；Hereafter, by rotary stopper Solution lock key knob SB01 can be unlocked.This control mode, decreases the intermediate link processing limit signal so that fault When generation, motor can stop at once, it is to avoid the injures and deaths of the damage of equipment and personnel.
Change the speed of hoist engine S3 for convenience, the present invention adopts motor variable-frequency speed-regulating to control.Described below.
Referring to Figure 18, the block diagram of motor speed regulation system of the present invention is shown.This motor speed regulation system includes coupling successively Power supply M03, converter M02 and motor M01, this converter M02 adopts AC-DC-AC mode, first industrial frequency AC is powered electricity Source M03 is converted into DC source by commutator, then again by inverter, DC source is converted into frequency, voltage all controlled The alternating current power supply of system, to supply motor M01, so can change the rotating speed of motor M01 by changing frequency.
As shown in figure 18, the input stage of this converter M02 is provided with filtering decoupling circuit, and it is preferably RC filtering decoupling electricity Road, is made up of the current-limiting resistance R and filter capacitor C that concatenate, so that the output plus terminal of power supply M03 and output ground termination Enter the current-limiting resistance R and filter capacitor C of concatenation.This filtering decoupling circuit is as the preposition analog low-pass of AC signal input channel Wave filter, has jamproof effect concurrently；Access decoupling capacitance between two terminals of alternating current-direct current signal input channel, can be high frequency differential mode Interference signal provides bypass.
Referring to Figure 19, the schematic block circuit diagram of converter of the present invention is shown.The converter M02 of the present embodiment includes rectified current Road M021, power factor correction circuit M022, filter circuit M023, inverter circuit M024 and microcontroller circuit M025, man-machine The parts such as interface circuit M026, wherein：Rectification circuit M021 forms (preferably full-bridge rectification electricity by commutation diode or bridge heap Road), including necessary interference filtering circuit, its major function is that alternating current is converted to unidirectional current；Circuit of power factor correction M022 is selectable unit (SU), is made up of power semiconductor and control chip, it is also connected to the power factor (PF) of microcontroller circuit M025 Correction end, effect is to make input current close to sine wave, reduces mains by harmonics content, realizes improving the purpose of power factor；Filter Wave circuit M023 (preferably RC filter circuit) is mainly made up of elements such as electrochemical capacitors, complete galvanic filtering and Energy storage acts on；Inverter circuit M024 is made up of power model and drive circuit, and its power model can be intelligent power driving tube Chip, it is also connected to the drive signal end of described microcontroller circuit, and its major function is to complete unidirectional current to three-phase alternating current Conversion, realize frequency modulation and voltage modulation purpose；Microcontroller circuit M025 is made up of microprocessor (DSP) and peripheral circuit, its basis The order that man-machine interface circuit M026 is sent, sends corresponding command signal, controls circuit of power factor correction M022 and inversion Circuit M024 works, and according to electronic feedback information, carries out necessary circuit protection and troubleshooting.So, this embodiment is led to Crossing the output mode that microcontroller circuit controls converter M02, being conducive to neatly by pre-provisioning request output voltage, thus meeting The demand of different user.
Referring to Figure 20, the circuit theory diagrams of inverter of the present invention are shown.It is particularly used for the inverter circuit M024 of motor M01 With the example of microcontroller circuit, its working method is：Civil power is changed into unidirectional current through rectification circuit M021, by electrochemical capacitor After filtering, access the power input of inverter circuit M024, between its power input, access filter capacitor.And microcontroller circuit Microprocessor according to the setting signal of man-machine interface circuit, motor M01 is controlled.
In the present embodiment, inverter circuit M024 includes power pipe driving chip, and this power pipe driving chip is connected to microprocessor The microprocessor (MCU/DSP) of device circuit, so that according to the pulse width modulating signal of microprocessor output, drives corresponding work( Rate pipe alternate conduction and shutoff.Specifically, described inverter circuit M024 includes six power tube Q1～Q6, this six power tubes It is divided into three groups, every group power controls a phase winding of three phase electric machine M01.
The concrete connected mode of each power tube is：The source electrode of power tube Q1, Q2, Q3 connects one end of DC source jointly, The drain electrode of power tube Q4, Q5, Q6 meets the other end of DC source, the company of the source electrode of the drain electrode of power tube Q1 and power tube Q4 jointly Contact connects the U phase terminal of motor, and the junction point of the source electrode of the drain electrode of power tube Q2 and power tube Q5 connects the V phase terminal of motor, work( The source electrode junction point of the drain electrode of rate pipe Q3 and power tube Q6 connects the W phase terminal of motor；The grid of power tube Q1, Q2, Q3, Q4, Q5, Q6 Pole connects an outfan of power pipe driving chip respectively, and each input of this power pipe driving chip is subject to microprocessor respectively Output pulse width Regulate signal PWM1, PWM2 of circuit, PWM3, PWM4, PWM5, PWM6 Zhong mono- tunnel control.This six work( Rate pipe Q1～Q6 source electrode and drain electrode between corresponding access diode D1～D6.
During start, microprocessor produces corresponding 6 road pulse width modulating signals according to the motor speed setting, that is, drive Signal PWM1～PWM6；By power pipe driving chip drive inverter M024 6 power tube (MOSFET or IGBT) Q1～ Q6；The alternate conduction of these power tubes and shutoff, produce three-phase modulations waveform, and output voltage is adjustable, the three of changeable frequency intersect Stream electricity, exports U, V, W terminals of motor M01, thus realizing the stepless frequency control of motor M01.
Although the present invention is open as above with preferred embodiment, it is not for limiting the present invention, any this area skill Art personnel without departing from the spirit and scope of the present invention, can make possible variation and modification, the therefore guarantor of the present invention Shield scope should be defined by the scope that the claims in the present invention are defined.

Claims (3)

1. a kind of configuration novel elevating stop jib crane, including chassis, turntable, hoist engine, landing oil cylinder, arm support, Suspension hook, turntable is installed on chassis, and hoist engine is installed on turntable, and the head end of arm support is articulated with turntable, and suspension hook hangs on the tail of arm support End, one end of landing oil cylinder is articulated with turntable, and the other end of landing oil cylinder is articulated with arm support, hoist engine be provided with driving means, Coiler device, brake unit and control device：Driving means are provided with motor, shaft coupling and reductor, and reductor is installed on machine Frame top, the high speed shaft of reductor is connected with the power output shaft of motor by shaft coupling；The drum support of coiler device It is installed on upper rack, one end of reel is rotationally connected with drum support, and the other end of reel passes through drum connection structure It is in transmission connection in the slow-speed shaft of reductor, the top sheave group of coiler device is positioned frame, and steel cable is wound in reel, top sheave group And lower sheave group, wherein steel cable lays out from reel the first conductor rope position counter clockwise direction, bypass counterclockwise successively the first lower sheave, First top sheave, the second lower sheave, the second top sheave, then bypass clockwise successively the 3rd lower sheave, the 3rd top sheave, under the 4th After pulley, another mistake hour hands wraparound reel the second conductor rope position, and the first end of steel cable is around in the first end of reel and is fixed on One pressure rope position, the second end of steel cable is around in the second end of reel and is fixed on reel second pressure rope position；The system of brake unit Dynamic device is installed on the high speed shaft of reductor, makes reductor braking by holding braked wheel tightly；Control device arranges converter Come to electric machine speed regulation, and motor control loop series contactor between motor protective circuit breaker and converter, upper bottom is spacing Switch is connected in series to the control loop of catalyst；It is characterized in that, upper bottom limit switch, using lifting stop, lifts stop Including U-bracket, rocking bar, screw rod, runner, stop housing, push pedal, active conductive post, limit switch and fixing conductive pole：U Shape support is fixed on the outer cover plate being connected with spool shaft, and stop housing is anchored on U-bracket by screw, and screw support is in limit Position device housing on, push pedal is installed on screw rod, and active conductive post one end is connected to push pedal, the active conductive post other end be supported in On the arm of limit switch that stop housing is connected, fixing conductive pole is fixed on another arm of limit switch, runner It is installed on the end of screw rod, one end of rocking bar prejudicially connects runner, and the other end of rocking bar is connected with spool shaft gusset piece.
2. jib crane as claimed in claim 1 is it is characterised in that the control loop setting limited location unblock of catalyst is revolved Button, spacing unlocking knob is in parallel with upper bottom limit switch.
3. jib crane as claimed in claim 1 or 2 is it is characterised in that industrial frequency AC power supply is passed through by converter Commutator is converted into DC source, then DC source is converted into all controllable alternating current power supply of frequency, voltage by inverter To supply motor, change, will pass through, the rotating speed that frequency to change motor.
CN201610824858.9A 2015-05-20 2015-05-20 A kind of jib crane Active CN106395646B (en)

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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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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

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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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