CN106348190B - A kind of hoist engine - Google Patents

A kind of hoist engine Download PDF

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Publication number
CN106348190B
CN106348190B CN201610824421.5A CN201610824421A CN106348190B CN 106348190 B CN106348190 B CN 106348190B CN 201610824421 A CN201610824421 A CN 201610824421A CN 106348190 B CN106348190 B CN 106348190B
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CN
China
Prior art keywords
brake
reel
arm
motor
steel cable
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Application number
CN201610824421.5A
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Chinese (zh)
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CN106348190A (en
Inventor
鲁霄钢
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Taicang Libao Intelligent Technology Co., Ltd
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鲁霄钢
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Priority to CN201610824421.5A priority Critical patent/CN106348190B/en
Publication of CN106348190A publication Critical patent/CN106348190A/en
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Classifications

    • 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
    • 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
    • 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 present invention discloses a kind of hoist engine, the first brake arm of brake, the second brake arm, the driving telescopic rod with driving device, driven telescopic rod one end be hingedly connected to Brake Block；First brake arm, driving telescopic rod, driven telescopic rod the other end be hingedly connected to an arm of L-shaped connecting rod；The other end of second brake arm is hinged with linear connecting rod, and the other end of linear connecting rod is hinged with another arm of L-shaped connecting rod；First brake block is installed on the inside of the first brake arm, and the second brake block is installed on the inside of the second brake arm, and the intrados of the intrados of first brake block and the second brake block holds the braked wheel on speed reducer high speed shaft tightly in braking.The present invention can promote arm-type crane products performance.

Description

A kind of hoist engine
The present invention is that the number of patent application that applicant proposed on May 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 components.
Background technology
Jib crane includes that lifting mechanism, jib lubbing mechanism, rotating mechanism etc. can by the interoperation of these mechanisms Make weight lifting and carrying in certain cylindrical space.The lifting mechanism of jib crane includes hoist engine, passes through folding and unfolding The steel cable on reel is around in lift by crane workpiece.There are certain deficiencies in existing boom type hoist engine design：For example, the volume of reel Cylinder, reel axle construction are complex, and installation is not inconvenient enough；For another example, the braking effect of brake is not ideal enough, up and down parking limit Position device is easy failure, it is possible to cause safety accident；For another example, steel cable winding method is not reasonable, occurs steel cable release sometimes Or the problem of being intertwined, thereby increase security risk；In addition, hoist engine speed cannot be conveniently adjusted；Etc..There is mirror In above-mentioned all various deficiencies, it is necessary to be improved crane and its hoist engine.
Invention content
In view of the defects existing in the prior art, the purpose of the embodiment of the present invention, which is to improve jib crane complete machine, divide, is System or component, to promote the performance of product.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of hoist engine, is suitable for jib crane, hoist engine It is provided with driving device, winding device, brake apparatus and control device, driving device is provided with motor, shaft coupling and speed reducer, Speed reducer is installed on upper rack, the power output axis connection that the high speed shaft of speed reducer passes through shaft coupling and motor；Winding device Drum support be installed on upper rack, one end of reel is rotationally connected with drum support, and the other end of reel is logical It crosses drum connection structure to be sequentially connected in the slow-speed shaft of speed reducer, the top sheave group of winding device is positioned at rack, steel cable winding In reel, top sheave group and lower sheave group, wherein the first conductor rope of steel cable self reel position is counterclockwise laid out, successively counterclockwise Around the first lower sheave, the first top sheave, the second lower sheave, the second top sheave, then successively clockwise around third lower sheave, the After three top sheaves, the 4th lower sheave, then clockwise about the second conductor rope of rewind position, and the first end of steel cable is around in the of reel The first pressure rope position is simultaneously fixed in one end, and the second end of steel cable is around in the second end of reel and is fixed on the pressure rope of reel second position It sets；The brake of brake apparatus is installed on the high speed shaft of speed reducer, so that reductor braking by holding braked wheel tightly；Control Device setting frequency converter comes to electric machine speed regulation, and motor control loop is connected contact between motor protective circuit breaker and frequency converter Device, upper bottom limit switch are connected in series to the control loop of contactor；The first end of first brake arm of brake, the second brake arm First end, the first end of the first end of driven telescopic rod and the driving telescopic rod with driving device be hingedly connected to Brake Block； The second end of first brake arm, the second end of driving telescopic rod, the second end of driven telescopic rod are hingedly connected to the of L-shaped connecting rod One arm；The second end of second brake arm and the first end of linear connecting rod are hinged, the second end of linear connecting rod and the second of L-shaped connecting rod Arm is hinged；First brake block is installed on the inside of the first brake arm, and the second brake block is installed on the inside of the second brake arm, this The intrados of the intrados of one brake block and the second brake block holds the braked wheel on speed reducer high speed shaft tightly in braking.
Compared with prior art, the embodiment of the present invention improves jib crane, it is possible thereby to improve product Can, performance is in the following areas：Optimize lifting drum body, spool shaft and its roll support, coupling structure, reel is laid out more Rationally, structure is more compact, and installation is also more convenient；Spool body structure and steel cable canoe and pressure rope structure are improved, it can be with It preferably avoids the problem that steel cable is unclamped or is intertwined, is conducive to eliminate safe hidden trouble；Improve brake, lifting limiter And motor stopping control mechanism, it can in time stop according to predetermined intention when limiting, stopping in emergency, braking, to It is effectively reduced safety accident；It, can aspect ground control lifting velocity using frequency converter to hoist engine electric machine speed regulation.
Description of the drawings
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 vertical 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 the schematic diagram of reel of the present invention and 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 is present invention pressure rope structure schematic diagram；
Figure 13 is drum support schematic diagram of the present invention；
Figure 14 is the schematic diagram of present invention lifting limiter；
Figure 15 is the internal structure schematic diagram of present invention lifting limiter；
Figure 16 is the electrical schematic diagram of motor stopping control mechanism of the present invention；
Figure 17 is the electrical connection graph of the limit switch of motor stopping control mechanism 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 frequency converter of the present invention；
Figure 20 is the circuit diagram of inverter of the present invention.
Specific implementation mode
The technical principle and the course of work of embodiment for a better understanding of the present invention, below in conjunction with attached drawing and specific implementation Example is next, and further the present invention will be described in detail.
Fig. 1-Figure 20 indicates the structure of hoist engine of the present invention, subsystem or component, 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.The jib crane includes chassis S1, turntable S2, elevator The components such as machine S3, landing oil cylinder S4, arm support S5, suspension hook S6, turntable S2 are 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 is rotated so that arm support S5 rotates, and oil cylinder S4 is flexible to make arm support S5 landings, Speed change oil cylinder is (not shown) so that arm support S5 luffings, hoist engine S3 folding and unfoldings are around in reel, arm support pulley blocks and lifting hook pulley group Steel cable lift 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 component, It is further explained below.
Referring also to Fig. 2-Fig. 4 shows the complete machine structure of hoist engine of the present invention.The hoist engine includes driving device, winding Device, brake apparatus and control device (not shown)：Driving device by motor M01 (preferably variable-frequency motor), shaft coupling 7, The equal components of speed reducer 1 are constituted, and motor M01, shaft coupling 7, speed reducer 1 couple successively；Winding device by reel 2, top sheave group 3 and The components such as lower sheave group and steel cable are constituted, and reel 2 is sequentially connected in speed reducer 1 so that reel 2 turns around, and steel cable is wound in reel 2, folding and unfolding is carried out in top sheave group 3 and lower sheave group；Brake apparatus is made of brake 5 and attachment etc., and brake 5, which acts on, to be subtracted It is braked on the high speed shaft or slow-speed shaft of fast machine 1；Control device is provided with motor stopping control mechanism, motor stopping control Mechanism stops motor operation in preset upper limit or lower limit.
As shown in figs 2-4, the concrete structure of the hoist engine is：Speed reducer 1 and drum support 4 are installed on rack The one end on the tops S01, 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 speed reducer 1, the high speed shaft of speed reducer 1 passes through shaft coupling (outside is equipped with shaft coupling clamshell) 7 and motor M01 Power output axis connection；Top sheave group 3 is positioned at rack S01, steel cable with certain style canoe be wound in reel 2, on Pulley blocks 3 and lower sheave group accordingly carry out folding and unfolding in motor M01 forward or reverse；Brake 5 is installed on speed reducer 1, system The braked wheel 6 on 1 high speed shaft of speed reducer can be held when dynamic tightly and braked.
In the hoist engine, spool body, spool shaft and its roll support, coupling structure are optimized, reel layout is more reasonable, Structure is more compact, and installation is also more convenient；Spool body structure and steel cable canoe and Ya Sheng mechanism rotate are improved, it can be more preferable Ground avoids the problem that steel cable is unclamped or is intertwined, and is conducive to eliminate safe hidden trouble；Improve brake, lifting limiter and Motor stopping control mechanism, can be according to the parking in time of predetermined intention, braking, to have when limiting, stopping in emergency Effect ground reduces safety accident.It is described further below.
Fig. 2-Fig. 4 shows brake mounting structure, which is installed on the high speed shaft of speed reducer 1, is made by holding tightly Driving wheel 6 and so that speed reducer 1 is braked, and so that reel 2 on the slow-speed shaft of speed reducer 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 the brake 5, the first end of the first brake arm 52, second It is the first end of brake arm 53, the first end of driving telescopic rod (can be cylinder or oil cylinder) 59 with driving device 50, driven flexible The first end of bar 58 is hingedly connected to Brake Block 51；It is the second end of first brake arm 52, the second end of driving telescopic rod 59, driven The second end of telescopic rod 58 is hingedly connected to the first arm of L-shaped connecting rod 57；The second end of second brake arm 53 and linear connecting rod 55 First end it is hinged, the second end of linear connecting rod 55 is hinged with the second arm of L-shaped connecting rod 57；First brake block 56 is installed on first The inside of brake arm 52, the second brake block 54 are installed on the inside of the second brake arm 53, the intrados of first brake block 56 and The intrados of second brake block 54 holds the braked wheel 6 on 1 high speed shaft of speed reducer tightly in braking.This mode of braking structure letter Single, braking response is fast, and effect is preferable.
Referring to Fig. 6, steel cable winding arrangement of the present invention is shown.In the 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, 10 self reel of steel cable, 2 first conductor rope position 2b is counterclockwise laid out, successively counterclockwise around the first lower sheave 91, the first top sheave 31, the second lower sheave 92, the second top sheave 32, then successively clockwise around in third lower sheave 93, third After pulley 33, the 4th lower sheave 94, another mistake hour hands are around 2 second conductor rope position 2c of rewind.Steel cable 10 uses this canoe, The probability of occurrence of the bad phenomenons such as steel cable winding, release can be reduced.
Referring to Fig. 7, reel and drum connection structure of the present invention, pressure rope structure and drum support are shown.Reel 2 includes Spool body 21 and spool shaft 22, the first end of the spool shaft 22 are fixedly supported to the second end of spool body 21, and the of spool body 21 One end is coupled by drum connection structure (parts I in Fig. 6) with the slow-speed shaft of speed reducer 1, the second end support of spool shaft 22 In drum support (parts III in Fig. 6), install very convenient.In addition, the both ends top of spool body 21 is set respectively Pressure rope structure (parts II in Fig. 6) is set, the end of steel cable 10 can be preferably fixed.
Referring also to 8- Fig. 9 shows the structure of reel of the present invention.First end plate 25, the second end plate is arranged in the spool body 21 24 are coupled by drum connection structure with the slow-speed shaft of speed reducer 1 with support plate 23, the first end plate 25 of spool body 21, spool body 21 the second end plate 24 fixes support spool shaft 22 with support plate 23, which is installed on drum support, installs Come very convenient.
As shown in Fig. 2-Fig. 9, which is arranged steel cable guide groove 211 above, convenient for steel cable 10 along steel cable guide groove 211 Thus introducing/extraction is conducive to steel cable 10 and winds in an orderly manner.
Referring to Figure 10, the structure of spool shaft of the present invention is shown.The spool shaft 22 includes reel shaft body 222, spool shaft master First shaft shoulder 221 is arranged in the first end of body 222, and second shaft shoulder 224 and the third shaft shoulder is arranged in the second end of reel shaft body 222 225, wherein reel shaft body 222, first shaft shoulder 221, second shaft shoulder 224 and the third shaft shoulder 225 outer diameter be sequentially reduced, and Tapered transitional 223 is set between reel shaft body 222 and second shaft shoulder 224, and 22 structural strength of this spool shaft is preferable, also side Just it installs.
Referring to Figure 11, drum connection structure of the present invention is shown.In the drum connection structure, connection semiaxis 84 is by cylindrical roller Bearing 87 is supported in terminal pad 82, and baffle 86, connection semiaxis 84, cylinder roller bearing is arranged in the medial end for coupling semiaxis 84 87 and the inside engaging portion of terminal pad 82 blocked with inner cover plate 85, connection semiaxis 84, cylinder roller bearing 87 and terminal pad 82 Outside engaging portion is blocked with outer cover plate 83, and terminal pad 82 and ring flange 81 are fixed, and ring flange 81 is anchored on the on spool body 21 End plate 25.This structure connection is reliable, easy for installation.
Referring to Figure 12, present invention pressure rope structure is shown.The pressure rope structure 11 includes steel cable pressing plate 111, under steel cable pressing plate Steel cable indent 1121 is arranged in surface, which is anchored on by bolt 112 in the screw hole of spool body 21 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 the drum support 4, machine is set in support base 41 Seat bearing block 43, reel bearing block 44 are supported in engine base bearing block 43, and spool shaft 22 is supported in volume by tapered roller bearing 45 Inside engaging portion 42 envelope of inner cover plate of cylinder bearing block 44, engine base bearing block 43, reel bearing block 44 and tapered roller bearing 45 It is stifled, engine base bearing block 43, the outside engaging portion closure of outer cover plate 47 of reel bearing block 44 and tapered roller bearing 45.This knot Structure is compact, and it is convenient to install.
As shown in figure 13, the present embodiment shows the mounting structure of lifting limiter.In Figure 12, reel is set in spool shaft 22 Axis gusset piece 46, to install the driving end (such as screw lifts the rocking bar of limiter 12) of lifting limiter 12, in 2 turns of reel When dynamic angle is more than predetermined value (revolution), it can disconnect and be electrically connected to prevent reel from further rotating, it in this way can be to lifting Height is limited.Below in conjunction with Figure 12-Figure 14, to be further described.
Referring to Figure 14-Figure 15, present invention lifting limiter structure is shown.With reference to Figure 12, the lifting limiter 12 packet Include U-bracket 121, rocking bar 122, screw rod 123, runner 124, limiter shell 125, guide rod 126, push plate 127, active conductive Column 128, limit switch 129 and fixed conductive column 120：U-bracket 121 is fixed on the outer cover plate 47 being connect with spool shaft 22, limit Position device shell 125 is anchored on U-bracket 121 by screw, and screw rod 123 is supported on limiter shell 125, and push plate 127 is installed In on screw rod 123,128 one end of active conductive column is connected to push plate 127, and 128 other end of active conductive column is supported in and limiter On one arm of the connected limit switch 129 of shell 125, fixed conductive column 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.
In addition, also installing guide rod 126 on limiter shell 125, which is arranged in parallel with screw rod 123, push plate 127 are arranged in the sliding of guide rod 126, to ensure smoothly to move.
In the embodiment, the position of push plate 127 can be pre-adjusted.When 2 scrolling of reel, rocking bar 122 is with spool shaft Gusset piece 46 rotates, and by runner 124 so that screw rod 123 rotates, the translation of push plate 127 drives active conductive column 128 to be detached from and fixes Conductive column 120 thereby turns off electrical connection and plays position-limiting action, thus improves security performance.
The structure for lifting limiter 12 is illustrated in Figure 14-Figure 15, which can be used to upper limit, It can be used for lower limit.Will lift limiter limit switch be connected to hoist engine motor M01 control loop, pass through trigger electricity Motor protective circuit breaker in machine control loop runs to stop motor M01, thus plays the role of safeguard protection.
The present invention, which is directed to, to be prevented, limits appearance limit situation, while being improved in terms of electric control system, is had Body is described as follows.
Referring also to Figure 16-Figure 17 shows the circuit structure of motor stopping control mechanism of the present invention.The motor stopping controls Mechanism can be used for hoist engine, it can also be used to which other types of lifting gear, electrical structure are：In the control loop of motor M01 In, a contactor KM01 is added between motor protective circuit breaker QF01 and frequency converter VF01；Upper bottom limit switch SQ01, SQ02 It is connected in series in the control loop of contactor KM01.Herein, the terminal 1-6 of motor protective circuit breaker QF01, contactor KM01's A1, A2 (three groups of terminals 1,2), terminal R, S, T, V, W, PE of frequency converter VF01, the terminal 11,12 of limit switch SQ01, SQ02, And the terminal 13,14 of limit solution lock key knob SB01 is connected according to Figure 15 with Figure 16, and explanation is no longer specifically unfolded.
After limit switch SQ01 or SQ02 are triggered, the coil power of contactor KM01, contactor KM01 are directly cut off Thus the power supply in the circuits frequency converter VF01 is cut off in release, to quickly stop the operation of motor M01；Hereafter, pass through rotary stopper Solution lock key knob SB01 can be unlocked.This control mode reduces the intermediate link of processing limit signal so that failure When generation, motor can stop at once, avoid the damage of equipment and the injures and deaths of personnel.
In order to facilitate the speed of hoist engine S3 is changed, the present invention is controlled using motor variable-frequency speed-regulating.It is described below.
Referring to Figure 18, the block diagram of motor speed regulation system of the present invention is shown.The motor speed regulation system includes coupling successively Power supply M03, frequency converter M02 and motor M01, frequency converter M02 use cross-straight-intersection mode, first industrial frequency AC are powered electric Source M03 is converted into DC power supply by rectifier, and it is controllable that DC power supply by inverter is then converted into frequency, voltage again The rotating speed of motor M01 can be changed by changing frequency in this way to supply motor M01 in the AC power of system.
As shown in figure 18, the input stage of frequency converter M02 is provided with filtering decoupling circuit, it is preferably RC filtering decoupling electricity Road is made of the current-limiting resistance R and filter capacitor C concatenated, 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.Preposition analog low-pass of the filtering decoupling circuit as AC signal input channel Filter has jamproof effect concurrently；Decoupling capacitance is accessed 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 frequency converter of the present invention is shown.The frequency converter M02 of the present embodiment includes rectified current It is road M021, power factor correction circuit M022, filter circuit M023, inverter circuit M024 and microprocessor circuit M025, man-machine The parts such as interface circuit M026, wherein：Rectification circuit M021 forms (preferably full-bridge rectification electricity by rectifier diode or bridge heap Road), including necessary interference filtering circuit, major function are that alternating current is converted to direct current；Circuit of power factor correction M022 is selectable unit (SU), is made of power semiconductor and control chip, it is also connected to the power factor (PF) of microprocessor circuit M025 End is corrected, effect is to make input current close to sine wave, reduces mains by harmonics content, realizes the purpose for improving power factor；Filter Wave circuit M023 (preferably RC filter circuits) is mainly made of elements such as electrolytic capacitors, complete direct current filtering and Energy storage acts on；Inverter circuit M024 is made of power module and driving circuit, and power module can be intelligent power driving tube Chip, it is also connected to the drive signal end of the microprocessor circuit, and major function is to complete direct current to three-phase alternating current Conversion, realize frequency modulation and voltage modulation purpose；Microprocessor circuit M025 is made of microprocessor (DSP) and peripheral circuit, basis The order that man-machine interface circuit M026 is sent sends out corresponding command signal, controls circuit of power factor correction M022 and inversion Circuit M024 work, and according to electronic feedback information, carry out necessary circuit protection and troubleshooting.In this way, the embodiment is logical The output mode for crossing microprocessor circuit control frequency converter M02, is conducive to neatly by pre-provisioning request output voltage, to meet The demand of different user.
Referring to Figure 20, the circuit diagram of inverter of the present invention is shown.It is particularly used for the inverter circuit M024 of motor M01 With the example of microprocessor circuit, working method is：Alternating current becomes direct current by rectification circuit M021, passes through electrolytic capacitor After filtering, the power input of inverter circuit M024 is accessed, filter capacitor is accessed between power input.And microprocessor 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, which is connected to microprocessor The microprocessor (MCU/DSP) of device circuit drives corresponding work(so as to the pulse width modulating signal exported according to microprocessor Rate pipe alternate conduction and shutdown.Specifically, the inverter circuit M024 includes six power tube Q1~Q6, this six power tubes It is divided into three groups, a phase winding of control three phase electric machine M01 per group power.
The specific connection type of each power tube is：The source electrode of power tube Q1, Q2, Q3 connect one end of DC power supply jointly, The drain electrode of power tube Q4, Q5, Q6 meet the other end of DC power supply, the company of the drain electrode of power tube Q1 and the source electrode of power tube Q4 jointly Contact connects the U phase terminals of motor, and the tie point of the drain electrode of power tube Q2 and the source electrode of power tube Q5 connects the V phase terminals of motor, work( The drain electrode of rate pipe Q3 and the source electrode tie point of power tube Q6 connect the W phase terminals of motor；The grid of power tube Q1, Q2, Q3, Q4, Q5, Q6 Pole connects an output end of power pipe driving chip respectively, and each input terminal of the power pipe driving chip is respectively by microprocessor Control all the way in output pulse width Regulate signal PWM1, PWM2, PWM3, PWM4, PWM5, PWM6 of circuit.Six work( Corresponding access diode D1~D6 between the source electrode and drain electrode of rate pipe Q1~Q6.
When booting, microprocessor generates corresponding 6 road pulse width modulating signal according to the motor speed of setting, that is, drives Signal PWM1~PWM6；By power pipe driving chip drive 6 power tubes (MOSFET or IGBT) Q1 of inverter M024~ Q6；The alternate conduction of these power tubes and shutdown generate three-phase modulations waveform, and output voltage is adjustable, three intersections of changeable frequency Galvanic electricity is output to U, V, W terminals of motor M01, to realize the stepless frequency control of motor M01.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this field skill Art personnel without departing from the spirit and scope of the present invention, can make possible variation and modification, therefore the guarantor of the present invention Shield range should be subject to the range that the claims in the present invention are defined.

Claims (3)

1. a kind of hoist engine is suitable for jib crane, it is characterised in that：Hoist engine is provided with driving device, winding device, system Dynamic device and control device, driving device are provided with motor, shaft coupling and speed reducer, and speed reducer is installed on upper rack, slow down The power output axis connection that the high speed shaft of machine passes through shaft coupling and motor；The drum support of winding device is installed in rack Portion, one end of reel are rotationally connected with drum support, and the other end of reel is sequentially connected by drum connection structure in subtracting The top sheave group of the slow-speed shaft of fast machine, winding device is positioned at rack, and steel cable is wound in reel, top sheave group and lower sheave group, Wherein the first conductor rope of steel cable self reel position counterclockwise lay out, successively counterclockwise around the first lower sheave, the first top sheave, Second lower sheave, the second top sheave, then successively clockwise around third lower sheave, third top sheave, after the 4th lower sheave, then it is suitable Hour hands are around the second conductor rope of rewind position, and the first end of steel cable is around in the first end of reel and is fixed on the first pressure rope position, The second end of steel cable is around in the second end of reel and is fixed on the pressure rope of reel second position；The brake of brake apparatus, which is installed on, to be subtracted On the high speed shaft of fast machine, so that reductor braking by holding braked wheel tightly；Control device setting frequency converter comes to electric machine speed regulation, And motor control loop series contactor between motor protective circuit breaker and frequency converter, upper bottom limit switch are connected in series to contact The control loop of device；The first end of first brake arm of brake, the first end of the second brake arm, the first end of driven telescopic rod And the first end of the driving telescopic rod with driving device is hingedly connected to Brake Block；The second end of first brake arm is actively stretched The second end of bar, the second end of driven telescopic rod are hingedly connected to the first arm of L-shaped connecting rod；The second end and line of second brake arm The first end of shape connecting rod is hinged, and the second end of linear connecting rod is hinged with the second arm of L-shaped connecting rod；First brake block is installed on first The inside of brake arm, the second brake block are installed on the inside of the second brake arm, the intrados of first brake block and the second braking The intrados of block holds the braked wheel on speed reducer high speed shaft tightly in braking.
2. hoist engine as described in claim 1, which is characterized in that the control loop of contactor is provided with limit unlocking knob, It is in parallel with upper the next limit switch to limit unlocking knob.
3. hoist engine as claimed in claim 1 or 2, which is characterized in that industrial frequency AC power supply is passed through rectification by frequency converter Device is converted into DC power supply, then by DC power supply by inverter be converted into the controllable AC power of frequency, voltage for To motor, change the rotating speed of motor will pass through change frequency.
CN201610824421.5A 2015-05-20 2015-05-20 A kind of hoist engine Active CN106348190B (en)

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CN201510256850.2A CN104973522B (en) 2015-05-20 2015-05-20 Jib crane

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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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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

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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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