CN105460827B - Simple detachable electric power lifting device - Google Patents

Simple detachable electric power lifting device Download PDF

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Publication number
CN105460827B
CN105460827B CN201410711707.3A CN201410711707A CN105460827B CN 105460827 B CN105460827 B CN 105460827B CN 201410711707 A CN201410711707 A CN 201410711707A CN 105460827 B CN105460827 B CN 105460827B
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CN
China
Prior art keywords
arm
support
pulley
wirerope
roller
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CN201410711707.3A
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Chinese (zh)
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CN105460827A (en
Inventor
李恺
李振江
高光勇
王荟廷
李政
周利梅
李晓燕
毕金龙
段立立
田明国
王建宾
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国网山东省电力公司潍坊供电公司
国家电网公司
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Priority to CN201410711707.3A priority Critical patent/CN105460827B/en
Publication of CN105460827A publication Critical patent/CN105460827A/en
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Publication of CN105460827B publication Critical patent/CN105460827B/en

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Abstract

The invention discloses a kind of Simple detachable electric power lifting devices, including cross-arm, cross-arm both ends are provided with support frame, by mounting rack installation, there are two fixed pulleys on cross-arm, it further include crane boom, crane boom lower end is installed with grabhook, movable pulley is installed on crane boom, crane boom upper end is connected with the wirerope being wrapped on movable pulley and fixed pulley, support frame includes the sliding sleeve for being sleeved on cross-arm both ends, master arm is vertically installed in the middle part of sliding sleeve, secondary support arm is coaxially hinged on sliding sleeve, it is provided with and is adjustable in the middle part of master arm and secondary support arm, the adjustment mechanism of both fixed angle, the winding mechanism connecting with steel cord ends is installed on support frame, master arm and secondary support arm bottom are provided with self-locking universal wheel.The beneficial effects of the invention are as follows easy to assembly, quick, lift it is laborsaving, stablize, conveniently moving occupies little space, convenient transportation after disassembly, is particularly suitable for electric system field work and uses.

Description

Simple detachable electric power lifting device

Technical field

The present invention relates to a kind of Simple detachable electric power lifting devices.

Background technique

Electric system uses suspension transferring machine often in field installation and commissioning equipment or upkeep operation to carry out allocation and transportation equipment. Suspension transferring machine is divided into pivoted arm type suspension transferring machine, straight moving type suspension transferring machine, full-shape type.Practical small suspension transferring machine directly slides suspension transferring machine, is small loop wheel machine, small Type suspension transferring machine, portable lifting and carrying machine, Mini-size hoist machine, miniature suspension transferring machine, electronic loop wheel machine, indoor suspension transferring machine, portable small loop wheel machine are New product at the beginning of being born in century is the important breakthrough of current building decoration industry machinery haul, suitable for skyscraper Lifting job, such as various construction materials, the handling of various art works, plank, carpenter especially to corridor inconvenience carrying The length and width material such as plate has more its unique advantage.It will terminate art work by the history of manual handling from this.Meanwhile it can also For lathe above and below the big workpiece of engineering shop, the production assembly line of power plant of family, food factory, warehouse and family's handling article Etc..It dramatically reduces labor intensity, maximally creates economic benefit.

Hoist tool is often " Γ " type, and holder part is made of main strut and cantalever rod.Cursor can be in mobile jib Upper 360 degree of rotation, power section is by groups such as motor (hand winch), retarder, clutch, brake, rope roll and wirerope At.Electronic hoist tool can operation button starter realize motor positive and inverse can by wire rope roll around, decontrol, and pass through cradle portion Divide pulley lifting, transfers object to complete lifting job.

No matter however, model used in hoist tool and although having done technological improvement, by current technical grade Rigger Usually in its application, there are many disadvantages for tool, especially:

1. tool construction is complicated, needs many secondary bar supports and reinforce.

2. Structural strength calls are higher, main rod hanger and cross bar undertake weight, especially its connecting portion, need higher-strength Be connected and fixed component.

3. it is immovable to must be fixedly arranged at certain place, i.e., enabled activity is also only limitted within the scope of 360 degree of mobile jib, More not flexible, practicability is poor.

4. most of cannot dismantle, the required process that can be dismantled and step are more, complicated, not easy to disassemble and assembling, It is unfavorable for carrying strange land use.

Summary of the invention

It is a kind of structurally reasonable the technical problem to be solved by the present invention is in view of the foregoing drawbacks, provide, it is easy to assembly, quick, Laborsaving, stabilization is lifted, conveniently moving occupies little space, the Simple detachable electric power lifting device of convenient transportation after disassembly.

In order to solve the above technical problems, this Simple detachable electric power lifting device is structurally characterized in that: including cross-arm, cross-arm Both ends are provided with support frame, and it further includes crane boom, crane boom lower end is fixed that by mounting rack installation, there are two fixed pulleys on cross-arm There is grabhook, movable pulley is installed on crane boom, crane boom upper end is connected with wirerope, and wirerope passes through spaced winding in two fixed pulleys After crossing a fixed pulley upper half wheel, further around cross movable pulley lower half wheel, finally by between two fixed pulleys bypass another fixed pulley Upper half wheel, support frame include the sliding sleeve for being sleeved on cross-arm both ends, are vertically installed with master arm in the middle part of sliding sleeve, further include secondary support Arm, secondary support arm upper end are installed with U-shaped frame, and U-shaped frame both ends are installed with the pivoted housing being rotatably assorted with sliding sleeve both ends, sliding sleeve inner end Land is installed on cross-arm, the cross-arm of sliding sleeve outer end is equipped with vertical location hole, and positioning hole is fitted with locating shaft, locating shaft Upper end is installed with block, is provided with the adjustment mechanism both be adjustable, fix angle, support in the middle part of master arm and secondary support arm Winding mechanism is installed, winding mechanism includes the manual pulley by crank by shaft driving rotation, and steel cord ends are fixed on frame It is wrapped in a manual pulley, master arm and secondary support arm bottom are provided with self-locking universal wheel.

This Simple detachable electric power lifting device is to realize assembling side by inserting support construction and pulley lifting structure Just, quickly, lift it is laborsaving, stablize, conveniently moving, occupy little space after disassembly, convenient transportation.

Inserting support construction mainly includes two support frames and a cross-arm, two support frame upper ends respectively with cross-arm both ends Inserting cooperation, therefore three constitutes one substantially in " bracket " of n shape.In the bracket, support cross arm is erected in two supports The effect at both ends, that is, cross-arm is supportted into role.Cross-arm acts to undertake lifting weight under the supporting role of two support frames The effect of object gravity.The structure of two support frames is identical, all includes a master arm and a secondary support arm.Main branch Brace upper end is connected with a sliding sleeve, and sliding sleeve axis is vertically arranged with master arm, and sliding sleeve and cross arm end inserting cooperate.Pair branch Brace upper end is installed with the U-shaped frame of an opening upwards, and U-shaped frame both ends have been respectively and fixedly connected with a pivoted housing, and two pivoted housings respectively correspond Turning set is mounted in sliding sleeve both ends.In this way, master arm just passes through sliding sleeve with secondary support arm upper end and two pivoted housings link into an integrated entity Structure, and the two constitutes the hinged relationship swung around sliding sleeve axial line.

It is provided with adjustment mechanism in the middle part of master arm and secondary support arm, by operation adjustment mechanism, adjustable main support Arm and the opposite of secondary support arm strut degree, that is, adjust angle between the two, and angle between the two is fixed, Exactly the relative position of master arm and secondary support arm is fixed.In this way, although master arm and secondary support arm upper end are hinged Relationship, but under the corrective action of adjustment mechanism, master arm, secondary support arm and adjustment mechanism will constitute one and be substantially in " tripod " structure of " △ " shape.According to triangular structure principle it is found that the structure of tripod is most stable of, therefore tripod Reliable, stable support force can be provided cross-arm.Because adjustment mechanism has adjustment master arm and secondary support arm angle Effect, therefore, the height when operation adjustment mechanism reduces the angle between master arm and secondary support arm, at the top of tripod It will increase therewith, the height that such cross-arm is propped up will also increase, and the advantage of tripod is to lift the height of weight at this time It is higher, therefore be suitble to use when lifting the higher-height weight of those landings.Likewise, working as operation adjustment mechanism, make main support When angle between arm and secondary support arm is larger, the height at the top of tripod will be decreased, the height that such cross-arm is propped up Degree will also decrease, and the advantage of tripod is that stability of strutting system is strong at this time, be suitble to make when lifting a lower height of weight of those landings With.

When needing to transport or store, Zhi Xu operation adjustment mechanism reduces to the angle of master arm and secondary support arm most Small, if angle is zero degree or when close to zero degree, the two is just almost arranged in parallel, and the occupancy of master arm and secondary support arm is empty at this time Between it is minimum, it is therefore, all very convenient when no matter transporting or storing.

After sliding sleeve set is attached to cross arm end, the one end of sliding sleeve in the middle part of cross-arm is known as inner end, and the other end is known as outer end.It is horizontal Load end is installed with land, and land and the limit of sliding sleeve inner end cooperate, in this way can anti-anti-skid sheath continue to slide in the middle part of cross-arm, protect The reliability that support frame is connect with cross arm end is demonstrate,proved.Cross arm end is additionally provided with location hole, location hole and sliding sleeve outer end position pair It should be arranged.Positioning hole is fitted with locating shaft, and locating shaft upper end is installed with block, and the main function of locating shaft and block is and cunning Outer end limit cooperation is covered, is slipped to prevent anti-skid sheath from cross arm end.In the present invention, location hole is axially vertically disposed, sets in this way The benefit set is only location hole need to be inserted into locating shaft lower end, and locating shaft can slide into positioning hole under self gravity, and lead to Crossing block and the position-limiting action of location hole makes locating shaft is opposite to be inserted into positioning hole fixedly, very convenient.When needs are branch When support and cross-arm are dismantled, locating shaft only need to be extracted upwards, and easily support frame top can be pulled out from cross arm end and separated, Operation is very easy.

After cross-arm and support frame are split, this Simple detachable electric power lifting device is just roughly divided into three parts, i.e., one Cross-arm and two and support frame together, occupied space is minimum, no matter transport or store it is all very convenient, and split after The weight of any a part be not it is very heavy, a staff can move completely, greatly reduce the personnel of construction site Configuration, helps to improve working efficiency and cost of labor.

Pulley lifting structure mainly includes the fixed pulley being mounted on cross-arm by mounting rack, the steel wire being wound on fixed pulley Rope, and the movable pulley and winding mechanism that are connect with wirerope both ends.Wherein, the quantity of fixed pulley is two, and two fixed pulleys Shaft is arranged in parallel.The both ends of the shaft of movable pulley is mounted on crane boom, and crane boom lower end is equipped with grabhook, for hooking weight Object, crane boom upper end are fixedly connected with wirerope one end.For convenience of narration, one end that wirerope is connect with crane boom is known as It holds again, the corresponding length of cable in lifting end is known as lifting section, by the other end, that is, the one end connecting with winding mechanism is known as The corresponding length of cable of winding terminal is known as around line segment by winding terminal, and one end of lifting section is lifting end, the other end be with around line segment The connecting pin of connection.It in this Simple detachable electric power lifting device, is wound on movable pulley in the middle part of lifting section, lifting end bypasses one It is fixed together after a fixed pulley with crane boom upper end, connecting pin links together after bypassing another fixed pulley with around line segment. In this way, grabhook is by upward pulling force, that is, crane boom and fixed pulley are by upward drawing from Overall Analysis Power, there are three power in total, and a power is the pulling force that wirerope is upward between crane boom upper end and a fixed pulley, other two power It is the fixed pulley upward pulling force of wirerope between two fixed pulleys respectively, these three power pulling force effect upward to grabhook is Equal.According to the transmission principle of fixed pulley and movable pulley it is found that the pulling force of haulage cable is about that grabhook is hung at this time The one third of weight is filled, therefore when people carry out haulage cable by the winding mechanism of wirerope winding terminal, need to only be paid The about power of one third weight plays the role of laborsaving lifting weight, greatly reduces labor intensity.

In this Simple detachable electric power lifting device, winding mechanism includes the shaft of rotational installation on the support frame, is turned Axis one end is equipped with manual pulley, and the shaft other end is installed with crank, and the fixation of wirerope winding terminal is wrapped in corresponding branch In manual pulley on support.In this way, manual pulley pulls on wirerope and is gradually wrapped in manual pulley wheel hub when people rotate crank On, also just play the role of pulling wirerope, at this point, grabhook will slowly rise under the traction force of three sections of wirerope, rise The effect of lifting weight is arrived.Similarly, when rotating backward crank, manual pulley will slowly release the wirerope of winding, lifting Hook also just slowly declines with the wirerope of release, plays the role of transferring grabhook or weight, very convenient.

In the present invention, master arm and secondary support arm lower end are fitted with universal wheel, and such people are in field work This Simple detachable electric power lifting device can be arbitrarily moved, especially after lifting weight, weight can be moved to is needed The place wanted, it is very convenient.

As a kind of implementation, the adjustment mechanism includes the adjusting rod being hinged in the middle part of secondary support arm, on adjusting rod It is evenly equipped with adjustment hole, master arm is equipped with the adjusting cavity with adjusting rod inserting cooperation, and master arm is equipped with matches with adjustment hole Chamber bar is fitted in the adjustment hole of the lumen pore of the perforation of conjunction, lumen pore and alignment, chamber bar both ends, which are equipped with, limits chamber bar in adjustment hole Interior retaining mechanism.

Adjusting rod is the main component for controlling master arm and secondary support arm support digression degree, and one end of adjusting rod is supported with secondary Hinged in the middle part of arm, the adjusting rod other end is inserted into the adjusting cavity in the middle part of master arm.Adjusting is evenly equipped on adjusting rod Hole, master arm are equipped with connection adjusting cavity and penetrate through the lumen pore of master arm, and the position of lumen pore and adjusting rod adjustment apertures exist Position in adjusting cavity is correspondingly arranged, and lumen pore can be made to be aligned with location hole in this way.It further include matching with location hole and lumen pore inserting The chamber bar of conjunction, the effect of chamber bar are to be locked together adjusting rod end with master arm.When determine support frame struts angle When spending, that is, after determining the height of cross-arm, lumen pore and nearest adjustment hole are aligned, then by the chamber of chamber bar insertion alignment In hole and adjustment hole, and it is located at chamber bar both ends on the outside of master arm, in this way, adjusting rod is just solid with master arm and secondary support arm Fixed support is at tripod structure.Because chamber bar both ends are equipped with retaining mechanism, when chamber bar both ends are pierced by master arm, by the machine of locking Structure locking, such chamber bar cannot slip out of lumen pore, play the role of secured adjusted bar and master arm, ensure that triangle The stability of frame structure.

As a kind of preferred implementation, the retaining mechanism includes the U-shaped bar for being hinged on chamber bar hinged end, and chamber bar is another End is equipped with the chamber rod aperture with the inserting cooperation of U-shaped bar end, and chamber rod aperture is installed with inner rack, U-shaped bar on the inner wall of hinged end The outer rack gear with the cooperation of inner rack elastic compression is installed on the side wall of end.

For convenience of narration, one end of chamber bar is known as hinged end, the other end of chamber bar is known as to insert end.Chamber bar hinged end It is hinged with U-shaped bar, U-shaped bar has certain outer tension or elasticity, and the inserting end of chamber bar is equipped with chamber rod aperture.When U-shaped bar is to inserting When end is swung, U-shaped bar end, which can correspond to, to be inserted into chamber rod aperture.Because inner wall of the chamber rod aperture close to hinged end is equipped with internal tooth Item, and U-shaped bar end side wall corresponding with inner rack is equipped with outer rack gear, so when chamber bar is inserted into U-shaped bar end with external force Kong Shi, outer rack gear can slide into chamber rod aperture under the effect of the elastic force of U-shaped bar along inner rack contoured surface.When external force stops, outside Rack gear and inner rack will be mutually clamped or be interlocked, in this way, U-shaped bar end is also with regard to automatically lock in chamber rod aperture.When When needing to unlock, only U-shaped bar need to slightly be strutted with external force, outer rack gear and inner rack can be made to be detached from, it also can be smoothly by U Shape bar end pulls out chamber rod aperture, operates very simple.

As an improvement, cross-arm both ends between two support frames are ipsilateral to be separately installed with a side roller, wirerope is bypassed It is intertwined after corresponding side roller with manual pulley fixation.

After side roller is set on cross-arm, the winding terminal of wirerope can first be bypassed into corresponding side roller, then twined again In corresponding manual pulley.The benefit being arranged in this way is that, because side roller is located on cross-arm, position is than fixed pulley and movable pulley Height, and side roller is located at cross arm end, therefore after the support transition of side roller, and wirerope winding terminal is drawn from fixed pulley Afterwards, it will extend to and cross arm end and then be extended in the manual pulley on support frame still further below along cross-arm substantially, it so not only can be with Broader space is provided for the lifting of weight, and can be scratched to avoid wirerope, plays the role of protecting wirerope, It extends service life, improve functional reliability.As soon as why at cross-arm both ends a side roller, the first purpose is respectively set It is and to have a winding mechanism on each support frame because there are two support frame, no matter wirerope winding terminal is to cross in this way Carry on a shoulder pole which end extends, and can be wound into corresponding manual pulley after side roller.Therefore, worker in operation, is not necessarily to distinguish The assembling of this Simple detachable electric power lifting device can be completed in the winding direction of wirerope, very convenient.

As an improvement, steel cord ends are installed with clamping block, it is evenly equipped on manual pulley periphery and wirerope and clamping block card Assemble the card slot closed.

After being uniformly arranged card slot on manual pulley periphery, steel cord ends can be put into a card slot, and make steel wire The clamping block of rope end is installed on card slot end to prevent wirerope from sliding along card slot.For convenience of narration, will be installed in card slot Wirerope be known as slot inner segment, the wirerope connecting with slot inner segment is known as inner segment.Then wirerope inner segment is passed through another Card slot moves into manual pulley wheel hub annular groove, and inner segment is wrapped in manual pulley wheel hub annular groove, that is, is wound into manual pulley, Slot inner segment can tightly be fastened in card slot in this way.Since the clamping block of slot inner segment end is by card slot card column, when driving is shaken When rotation, slot inner segment will be locked in card slot, and the wirerope being wrapped in manual pulley only the more can twine the more more, without beating It is sliding, it ensure that the reliability of connection reliability and winding mechanism work.

As an improvement, manual pulley is installed with ratchet on the side wall of master arm, turn on the master arm above ratchet Dynamic to be equipped with axis, upper axis one end is installed with the upper pawl with the cooperation of ratchet top, and the upper axis other end is installed with upper handle, upper axis On be set with and make the pawl spring upper torsional spring for compressing ratchet, be rotatably equipped with lower axle, lower axle on the master arm below ratchet One end is installed with the lower pawl with the cooperation of ratchet lower part, and the lower axle other end is installed with lower handle, and being set in lower axle makes lower pawl The lower torsional spring of elastic compression ratchet, upper pawl and lower pawl are opposite to the limitation direction of ratchet.

For convenience of narration, manual pulley is known as inside or inner wall close to the side of master arm, the other side is known as outside Or outer wall.After the fixed ratchet of manual pulley inner coaxial, when with crank driving manual pulley rotation, ratchet will rotate synchronously therewith. Axis is rotatably equipped on master arm, upper axis penetrates through master arm two sidewalls, and upper axis is equipped with close to one end of manual pulley Pawl, limit cooperates when sliding friction and ratchet invert when upper pawl is located above ratchet and rotates forward with ratchet.It is set on upper axis There is upper torsional spring, upper one end of torsional spring and master arm are affixed, and the other end and upper axis are affixed, and the main function of upper torsional spring is to make spine Pawl elastic compression plays limit ratchet or locking spine on ratchet periphery, can be caught in time in ratchet slot when guaranteeing ratchet reversion The effect for taking turns or preventing ratchet from inverting.For convenience of narration, which is known as upper locking state or reversion locking state.Upper axis is another One end is installed with upper handle, can show upper pawl out of ratchet slot by rotating upper handle, also just play the work of unlock With.Likewise, being also rotatably equipped with lower axle on master arm, lower axle penetrates through master arm two sidewalls, and lower axle is close to manual pulley One end lower pawl is installed, limit and match when sliding friction and ratchet rotate forward when lower pawl is located at below ratchet and inverts with ratchet It closes.Lower torsional spring is set in lower axle, lower one end of torsional spring is affixed with master arm, and the other end is affixed with lower axle, lower torsional spring it is main Effect, be it is pawl spring under making be pressed on ratchet periphery, can be caught in time in ratchet slot when guaranteeing that ratchet rotates forward and play limit Position ratchet or the effect for preventing ratchet from rotating forward.The lower axle other end is installed with lower handle, can be by lower pawl by rotation lower handle It is shown out of ratchet slot, also just plays the role of unlock.For convenience of narration, which is known as lower locking state or positive twist lock Death situation state.Therefore, in this Simple detachable electric power lifting device, manual pulley has the dual locking function rotated and reverse, from It fundamentally solves the problems, such as weight tenesmus out of control, substantially increases safety when lifting weight, and worker is by wirerope When being wound into manual pulley, forward and reverse winding is considered the problems of no at all, because no matter this manual pulley rotates forward or anti- It can be automatically locked to rotation, substantially increase field-installed convenience.

As a kind of implementation, mounting rack includes the frame body being sleeved on cross-arm, and frame body top is uniformly equipped with and cross The idler wheel of top surface rolling support cooperation is carried on a shoulder pole, is separately installed with one between the cross-arm both ends and corresponding side roller between two support frames Head sheave, head sheave are bigger than the outer diameter of side roller, and lower than at the top of head sheave at the top of side roller, side roller bottom is higher than head sheave Bottom, side roller axial width are much larger than head sheave axial width, and the corresponding cross arm end of wirerope winding terminal is lift side, separately One end is translation end, further includes steel wire ring, and steel wire ring top covers on two head sheaves, and steel wire ring lower part is wrapped in translation end In manual pulley, the steel wire ring between lift side head sheave and translation end manual pulley is also wound on the side roller top at translation end, both ends Steel wire ring between pulley is fixed together with frame body.

In this mounting rack, because frame body is sleeved on cross-arm, and frame body top is equipped with and rolls with cross-arm top surface The idler wheel of dynamic cooperation, therefore, when frame body is by external force along cross-arm axial direction, frame body by under the rolling support of idler wheel along cross-arm Axial movement thus may be implemented the purpose that control weight is translated along cross-arm, that is, there is fine tuning hoisting heavy level to move Dynamic function is particularly suitable for power system staff when power equipment is lifted by crane in field, due to placing destination locations to equipment Preliminary judgement is inaccurate, and since this Simple detachable electric power lifting device sink under equipment gravity toward soft terrain and Cause emergency fine tuning when not easily shifted equipment to use, helps to improve mobile success rate and construction efficiency.

In this Simple detachable electric power lifting device, the cross-arm both ends between two support frames are also separately installed with an end Pulley, two head sheaves are located at that cross-arm is ipsilateral with two side rollers, and head sheave and side roller shaft are arranged in parallel and the same end Head sheave is between side roller and support frame.For convenience of narration, the corresponding cross arm end of wirerope winding terminal is known as going up and down The other end is known as translating end by end.This Simple detachable electric power lifting device further includes that top is matched with two head sheaves Steel wire ring, steel wire ring are the ring that head and the tail are fixed together.Steel wire ring top is set on two head sheaves, steel wire ring lower part It is sleeved in the corresponding manual pulley in translation end.Steel wire loop section between lift side head sheave and translation end manual pulley is also wrapped in On the side roller for translating end, the arrangement track of steel wire ring entire so is just rendered as an inverted L shape.Two head sheaves it Between steel wire loop section it is corresponding with frame body be fixed together, in this way, when the winding mechanism crank at worker's rotational translation end, manually Wheel will drive steel wire encircling head sheave and side roller rotation.Due to the steel wire loop section between two head sheaves be almost with cross-arm Axis is parallel, and therefore, when steel wire ring rotation, steel wire ring will drive frame body along cross-arm axial translation, thereby realize band The function that dynamic equipment or weight are translated along cross-arm.

Due to two sets of winding mechanisms on two support frames be it is identical, translate end winding mechanism also have it is dual locked Therefore function after crank, which is rotate in place, makes frame body be moved to cross-arm suitable position, need only unclamp and control the upper of upper pawl Handle and the lower handle for controlling lower pawl, manual pulley either will all be lockked in forward rotation direction or reverse directions inflexibly, this Sample rack body is also just locked on cross-arm inflexibly, and the equipment or weight that grabhook is lifted cannot also be put down in the horizontal direction again It moves, it is easy to operate, reliable and stable.When needing to translate, corresponding upper handle or lower handle are pulled, makes pawl or lower pawl Then unlock is just able to rotate crank rotation, also can be mobile to the direction of needs by equipment or weight, very convenient.

In this Simple detachable electric power lifting device, head sheave is bigger than the outer diameter of side roller, and low at the top of side roller At the top of head sheave, side roller bottom is higher than head sheave bottom.The first purpose being arranged in this way is avoided between two head sheaves Steel wire loop section when passing through the side roller top of lift side with the side roller body upper part or wirerope friction thereon, to protect Demonstrate,prove structural stability and the service life of wirerope and steel wire ring.The second purpose be avoid lift side head sheave and translation end side pulley it Between steel wire loop section rub when by lift side side roller lower part with the side roller lower part, to play guarantee steel wire The effect of the structural stability and service life of ring.

In this Simple detachable electric power lifting device, side roller axial width is much larger than head sheave axial width.In this way The purpose of setting is because of support frame is general triangular structure, and winding mechanism is arranged in the middle part of master arm again, therefore Horizontal distance of the manual pulley apart from cross-arm on winding mechanism is biggish.And the side roller and head sheave on cross-arm are apart from cross-arm Horizontal distance it is then relatively close, thus necessarily making the wirerope between lift side side roller and lift side manual pulley is to be obliquely installed 's.And side roller axial width is arranged much larger than head sheave axial width, it is exactly in order in the horizontal direction by lift side Wirerope and steel wire ring motion track at side roller are non-interference when misplacing, working, and avoid the two intersection friction, ensure that work Make reliability and service life.

In conclusion this Simple detachable electric power lifting device is structurally reasonable, and it is easy to assembly, quick, it lifts laborsaving, steady Fixed, conveniently moving occupies little space, convenient transportation after disassembly, is particularly suitable for the installation of power system staff business, maintenance is set Lifting operation uses when standby.

Detailed description of the invention

It elaborates with reference to the accompanying drawing to the present invention.

Fig. 1 is the structural diagram of the present invention;

Fig. 2 is the fit structure schematic diagram of ratchet, upper pawl and lower pawl;

Fig. 3 is the structural schematic diagram of chamber bar and U-shaped rod locking state;

Fig. 4 is the structural schematic diagram of chamber bar and U-shaped bar unlocked state;

Fig. 5 is the overlooking structure diagram of wirerope and steel wire ring motion track;

Fig. 6 is the structural schematic diagram for clamping block and wirerope cooperation;

Structural schematic diagram when Fig. 7 is manual pulley non-winding wire ropes;

Fig. 8 be manual pulley winding wire ropes when with clamp block fit structure schematic diagram.

Specific embodiment

As shown, this Simple detachable electric power lifting device includes cross-arm 1, cross-arm both ends are provided with support frame 2, cross-arm It is upper that by the installation of mounting rack 3, there are two fixed pulleys 4.It further include crane boom 5, crane boom lower end is installed with grabhook 10, crane boom On movable pulley 6 is installed.Weight frame upper end is connected with wirerope 7, and wirerope among two fixed pulleys by bypassing on a fixed pulley After half takes turns, further around crossing 6 lower half wheel of movable pulley, finally by bypassing another fixed pulley upper half wheel, support frame between two fixed pulleys Sliding sleeve 13 including being sleeved on cross-arm both ends, sliding sleeve middle part are vertically installed with master arm 14.It further include secondary 15 brace of support arm Upper end is installed with U-shaped, and 16, U-shaped frame both ends are installed with the pivoted housing 17 being rotatably assorted with sliding sleeve both ends, solid on the cross-arm of sliding sleeve inner end Equipped with land 18, the cross-arm of sliding sleeve outer end is equipped with vertical location hole 19, and positioning hole is fitted with locating shaft 20, on locating shaft End is installed with block 21.The adjustment mechanism both be adjustable, fix angle is provided in the middle part of master arm 14 and secondary support arm 15. Winding mechanism is installed, winding mechanism includes the manual pulley 8 by crank 9 by the driving rotation of shaft 11, wirerope on support frame End fixation is wrapped in a manual pulley, and master arm and secondary support arm bottom are provided with self-locking universal wheel 32.

In this Simple detachable electric power lifting device, two support frame upper ends are inserted with cross-arm both ends respectively to be cooperated, because This three constitutes one substantially in " bracket " of n shape.In the bracket, two support the effect for erecting support cross arm both ends, Cross-arm is namely supportted into role.Cross-arm acts the work for undertaking lifted weight gravity under the supporting role of two support frames With.The structure of two support frames is identical, all includes a master arm and a secondary support arm.Master arm upper end is solid It is connected to a sliding sleeve, sliding sleeve axis is vertically arranged with master arm, and sliding sleeve and cross arm end inserting cooperate.Secondary support arm upper end is solid U-shaped frame equipped with an opening upwards, U-shaped frame both ends have been respectively and fixedly connected with a pivoted housing, and two pivoted housings respectively correspond turning set and are mounted in Sliding sleeve both ends.In this way, master arm and secondary support arm upper end just pass through sliding sleeve and two pivoted housings link into an integrated entity structure, and the two Constitute the hinged relationship swung around sliding sleeve axial line.

It is provided with adjustment mechanism in the middle part of master arm and secondary support arm, by operation adjustment mechanism, adjustable main support Arm and the opposite of secondary support arm strut degree, that is, adjust angle between the two, and angle between the two is fixed, Exactly the relative position of master arm and secondary support arm is fixed.In this way, although master arm and secondary support arm upper end are hinged Relationship, but under the corrective action of adjustment mechanism, master arm, secondary support arm and adjustment mechanism will constitute one and be substantially in " tripod " structure of " △ " shape.According to triangular structure principle it is found that the structure of tripod is most stable of, therefore tripod Reliable, stable support force can be provided cross-arm.Because adjustment mechanism has adjustment master arm and secondary support arm angle Effect, therefore, the height when operation adjustment mechanism reduces the angle between master arm and secondary support arm, at the top of tripod It will increase therewith, the height that such cross-arm is propped up will also increase, and the advantage of tripod is to lift the height of weight at this time It is higher, therefore be suitble to use when lifting the higher-height weight of those landings.Likewise, working as operation adjustment mechanism, make main support When angle between arm and secondary support arm is larger, the height at the top of tripod will be decreased, the height that such cross-arm is propped up Degree will also decrease, and the advantage of tripod is that stability of strutting system is strong at this time, be suitble to make when lifting a lower height of weight of those landings With.

When needing to transport or store, Zhi Xu operation adjustment mechanism reduces to the angle of master arm and secondary support arm most Small, if angle is zero degree or when close to zero degree, the two is just almost arranged in parallel, and the occupancy of master arm and secondary support arm is empty at this time Between it is minimum, it is therefore, all very convenient when no matter transporting or storing.

After sliding sleeve set is attached to cross arm end, the one end of sliding sleeve in the middle part of cross-arm is known as inner end, and the other end is known as outer end.It is horizontal Load end is installed with land, and land and the limit of sliding sleeve inner end cooperate, in this way can anti-anti-skid sheath continue to slide in the middle part of cross-arm, protect The reliability that support frame is connect with cross arm end is demonstrate,proved.Cross arm end is additionally provided with location hole, location hole and sliding sleeve outer end position pair It should be arranged.Positioning hole is fitted with locating shaft, and locating shaft upper end is installed with block, and the main function of locating shaft and block is and cunning Outer end limit cooperation is covered, is slipped to prevent anti-skid sheath from cross arm end.In the present invention, location hole is axially vertically disposed, sets in this way The benefit set is only location hole need to be inserted into locating shaft lower end, and locating shaft can slide into positioning hole under self gravity, and lead to Crossing block and the position-limiting action of location hole makes locating shaft is opposite to be inserted into positioning hole fixedly, very convenient.When needs are branch When support and cross-arm are dismantled, locating shaft only need to be extracted upwards, and easily support frame top can be pulled out from cross arm end and separated, Operation is very easy.

After cross-arm and support frame are split, this Simple detachable electric power lifting device is just roughly divided into three parts, i.e., one Cross-arm and two and support frame together, occupied space is minimum, no matter transport or store it is all very convenient, and split after The weight of any a part be not it is very heavy, a staff can move completely, greatly reduce the personnel of construction site Configuration, helps to improve working efficiency and cost of labor.

Pulley lifting structure mainly includes the fixed pulley being mounted on cross-arm by mounting rack, the steel wire being wound on fixed pulley Rope, and the movable pulley and winding mechanism that are connect with wirerope both ends.Wherein, the quantity of fixed pulley is two, and two fixed pulleys Shaft is arranged in parallel.The both ends of the shaft of movable pulley is mounted on crane boom, and crane boom lower end is equipped with grabhook, for hooking weight Object, crane boom upper end are fixedly connected with wirerope one end.For convenience of narration, one end that wirerope is connect with crane boom is known as It holds again, the corresponding length of cable in lifting end is known as lifting section, by the other end, that is, the one end connecting with winding mechanism is known as The corresponding length of cable of winding terminal is known as around line segment by winding terminal, and one end of lifting section is lifting end, the other end be with around line segment The connecting pin of connection.It in this Simple detachable electric power lifting device, is wound on movable pulley in the middle part of lifting section, lifting end bypasses one It is fixed together after a fixed pulley with crane boom upper end, connecting pin links together after bypassing another fixed pulley with around line segment. In this way, grabhook is by upward pulling force, that is, crane boom and fixed pulley are by upward drawing from Overall Analysis Power, there are three power in total, and a power is the pulling force that wirerope is upward between crane boom upper end and a fixed pulley, other two power It is the fixed pulley upward pulling force of wirerope between two fixed pulleys respectively, these three power pulling force effect upward to grabhook is Equal.According to the transmission principle of fixed pulley and movable pulley it is found that the pulling force of haulage cable is about that grabhook is hung at this time The one third of weight is filled, therefore when people carry out haulage cable by the winding mechanism of wirerope winding terminal, need to only be paid The about power of one third weight plays the role of laborsaving lifting weight, greatly reduces labor intensity.

In this Simple detachable electric power lifting device, winding mechanism includes the shaft of rotational installation on the support frame, is turned Axis one end is equipped with manual pulley, and the shaft other end is installed with crank, and the fixation of wirerope winding terminal is wrapped in corresponding branch In manual pulley on support.In this way, manual pulley pulls on wirerope and is gradually wrapped in manual pulley wheel hub when people rotate crank On, also just play the role of pulling wirerope, at this point, grabhook will slowly rise under the traction force of three sections of wirerope, rise The effect of lifting weight is arrived.Similarly, when rotating backward crank, manual pulley will slowly release the wirerope of winding, lifting Hook also just slowly declines with the wirerope of release, plays the role of transferring grabhook or weight, very convenient.

In the present invention, master arm and secondary support arm lower end are fitted with universal wheel, and such people are in field work This Simple detachable electric power lifting device can be arbitrarily moved, especially after lifting weight, weight can be moved to is needed The place wanted, it is very convenient.

In the present embodiment, the adjustment mechanism includes the adjusting rod 22 being hinged in the middle part of secondary support arm, on adjusting rod It is furnished with adjustment hole 23, master arm is equipped with the adjusting cavity 24 with adjusting rod inserting cooperation, and master arm is equipped with and adjustment hole Chamber bar 26 is fitted in the adjustment hole of the lumen pore 25 of the perforation of cooperation, lumen pore and alignment, chamber bar both ends, which are equipped with, exists the limit of chamber bar Retaining mechanism in adjustment hole.

Adjusting rod is the main component for controlling master arm and secondary support arm support digression degree, and one end of adjusting rod is supported with secondary Hinged in the middle part of arm, the adjusting rod other end is inserted into the adjusting cavity in the middle part of master arm.Adjusting is evenly equipped on adjusting rod Hole, master arm are equipped with connection adjusting cavity and penetrate through the lumen pore of master arm, and the position of lumen pore and adjusting rod adjustment apertures exist Position in adjusting cavity is correspondingly arranged, and lumen pore can be made to be aligned with location hole in this way.It further include matching with location hole and lumen pore inserting The chamber bar of conjunction, the effect of chamber bar are to be locked together adjusting rod end with master arm.When determine support frame struts angle When spending, that is, after determining the height of cross-arm, lumen pore and nearest adjustment hole are aligned, then by the chamber of chamber bar insertion alignment In hole and adjustment hole, and it is located at chamber bar both ends on the outside of master arm, in this way, adjusting rod is just solid with master arm and secondary support arm Fixed support is at tripod structure.Because chamber bar both ends are equipped with retaining mechanism, when chamber bar both ends are pierced by master arm, by the machine of locking Structure locking, such chamber bar cannot slip out of lumen pore, play the role of secured adjusted bar and master arm, ensure that triangle The stability of frame structure.

In this Simple detachable electric power lifting device, the retaining mechanism includes the U-shaped for being hinged on 26 hinged end of chamber bar Bar 27, the chamber bar other end are equipped with the chamber rod aperture 28 with the inserting cooperation of U-shaped bar end, and chamber rod aperture is fixed on the inner wall of hinged end There is inner rack 29, the outer rack gear 30 with the cooperation of inner rack elastic compression is installed on the side wall of U-shaped bar end.

For convenience of narration, one end of chamber bar is known as hinged end, the other end of chamber bar is known as to insert end.Chamber bar hinged end It is hinged with U-shaped bar, U-shaped bar has certain outer tension or elasticity, and the inserting end of chamber bar is equipped with chamber rod aperture.When U-shaped bar is to inserting When end is swung, U-shaped bar end, which can correspond to, to be inserted into chamber rod aperture.Because inner wall of the chamber rod aperture close to hinged end is equipped with internal tooth Item, and U-shaped bar end side wall corresponding with inner rack is equipped with outer rack gear, so when chamber bar is inserted into U-shaped bar end with external force Kong Shi, outer rack gear can slide into chamber rod aperture under the effect of the elastic force of U-shaped bar along inner rack contoured surface.When external force stops, outside Rack gear and inner rack will be mutually clamped or be interlocked, in this way, U-shaped bar end is also with regard to automatically lock in chamber rod aperture.When When needing to unlock, only U-shaped bar need to slightly be strutted with external force, outer rack gear and inner rack can be made to be detached from, it also can be smoothly by U Shape bar end pulls out chamber rod aperture, operates very simple.

Cross-arm both ends between two support frames 2 are ipsilateral to be separately installed with a side roller 38, and wirerope is around corresponding It is intertwined after side roller with manual pulley fixation.After side roller is set on cross-arm, can by the winding terminal of wirerope first around Corresponding side roller is crossed, is then wound into corresponding manual pulley again.The benefit being arranged in this way is, because side roller is located at cross-arm On, position is higher than fixed pulley and movable pulley, and side roller is located at cross arm end, therefore after the support transition of side roller, Wirerope winding terminal will extend to cross arm end along cross-arm substantially and then extend on support frame still further below after fixed pulley extraction Manual pulley on, not only can provide broader space in this way for the lifting of weight, and can be scratched to avoid wirerope, Play the role of protecting wirerope, extends service life, improves functional reliability.Why set respectively at cross-arm both ends A side roller is set, the first purpose is exactly the support frame because of there are two, and has a winding mechanism on each support frame, this No matter which end wirerope winding terminal extends sample to cross-arm, can be wound into corresponding manual pulley after side roller.Therefore, In operation, without distinguishing the winding direction of wirerope, the assembling of this Simple detachable electric power lifting device can be completed in worker, It is very convenient.

In the present embodiment, 7 end of wirerope, which is installed with, clamps block 12, is evenly equipped with and wirerope and card on manual pulley periphery Fill the card slot 31 of block snap fit.After being uniformly arranged card slot on manual pulley periphery, steel cord ends can be put into a card In slot, and the clamping block of steel cord ends is set to be installed on card slot end to prevent wirerope from sliding along card slot.It, will for convenience of narration The wirerope being installed in card slot is known as slot inner segment, and the wirerope connecting with slot inner segment is known as inner segment.It then will be in wirerope Section is moved into manual pulley wheel hub annular groove by another card slot, and inner segment is wrapped in manual pulley wheel hub annular groove, that is, is twined In manual pulley, slot inner segment can tightly be fastened in card slot in this way.Since the clamping block of slot inner segment end is by card slot card column, Therefore when driving crank rotation, slot inner segment will be locked in card slot, and the wirerope being wrapped in manual pulley only can be more twining It is more, without skidding, it ensure that the reliability of connection reliability and winding mechanism work.

Manual pulley is installed with ratchet 33 on the side wall of master arm, is rotatably equipped on the master arm above ratchet Upper axis 34, upper axis one end are installed with the upper pawl 40 with the cooperation of ratchet top, and the upper axis other end is installed with upper handle 41, on upper axis Being set with makes the pawl spring upper torsional spring 42 for compressing ratchet, is rotatably equipped with lower axle 43 on the master arm below ratchet, under Axis one end is installed with the lower pawl 44 with the cooperation of ratchet lower part, and the lower axle other end is installed with lower handle 45, and being set in lower axle makes Under it is pawl spring compress ratchet lower torsional spring 46, upper pawl and lower pawl are opposite to the limitation direction of ratchet.

For convenience of narration, manual pulley is known as inside or inner wall close to the side of master arm, the other side is known as outside Or outer wall.After the fixed ratchet of manual pulley inner coaxial, when with crank driving manual pulley rotation, ratchet will rotate synchronously therewith. Axis is rotatably equipped on master arm, upper axis penetrates through master arm two sidewalls, and upper axis is equipped with close to one end of manual pulley Pawl, limit cooperates when sliding friction and ratchet invert when upper pawl is located above ratchet and rotates forward with ratchet.It is set on upper axis There is upper torsional spring, upper one end of torsional spring and master arm are affixed, and the other end and upper axis are affixed, and the main function of upper torsional spring is to make spine Pawl elastic compression plays limit ratchet or locking spine on ratchet periphery, can be caught in time in ratchet slot when guaranteeing ratchet reversion The effect for taking turns or preventing ratchet from inverting.For convenience of narration, which is known as upper locking state or reversion locking state.Upper axis is another One end is installed with upper handle, can show upper pawl out of ratchet slot by rotating upper handle, also just play the work of unlock With.Likewise, being also rotatably equipped with lower axle on master arm, lower axle penetrates through master arm two sidewalls, and lower axle is close to manual pulley One end lower pawl is installed, limit and match when sliding friction and ratchet rotate forward when lower pawl is located at below ratchet and inverts with ratchet It closes.Lower torsional spring is set in lower axle, lower one end of torsional spring is affixed with master arm, and the other end is affixed with lower axle, lower torsional spring it is main Effect, be it is pawl spring under making be pressed on ratchet periphery, can be caught in time in ratchet slot when guaranteeing that ratchet rotates forward and play limit Position ratchet or the effect for preventing ratchet from rotating forward.The lower axle other end is installed with lower handle, can be by lower pawl by rotation lower handle It is shown out of ratchet slot, also just plays the role of unlock.For convenience of narration, which is known as lower locking state or positive twist lock Death situation state.Therefore, in this Simple detachable electric power lifting device, manual pulley has the dual locking function rotated and reverse, from It fundamentally solves the problems, such as weight tenesmus out of control, substantially increases safety when lifting weight, and worker is by wirerope When being wound into manual pulley, forward and reverse winding is considered the problems of no at all, because no matter this manual pulley rotates forward or anti- It can be automatically locked to rotation, substantially increase field-installed convenience.

In the present embodiment, mounting rack 3 includes the frame body 35 being sleeved on cross-arm 1, and frame body top is uniformly equipped with and cross The idler wheel 36 of top surface rolling support cooperation is carried on a shoulder pole, is separately installed between the cross-arm both ends and corresponding side roller 38 between two support frames One head sheave 37, head sheave are bigger than the outer diameter of side roller, and lower than at the top of head sheave at the top of side roller, side roller bottom is higher than Head sheave bottom, side roller axial width are much larger than head sheave axial width.The corresponding cross arm end of wirerope winding terminal is to rise End drops, and the other end is translation end.It further include steel wire ring 39, steel wire ring top covers on two head sheaves, the winding of steel wire ring lower part In the manual pulley at translation end, the steel wire ring between lift side head sheave and translation end manual pulley is also wound on the side roller at translation end Top, the steel wire ring between two head sheaves are fixed together with frame body.

In this mounting rack, because frame body is sleeved on cross-arm, and frame body top is equipped with and rolls with cross-arm top surface The idler wheel of dynamic cooperation, therefore, when frame body is by external force along cross-arm axial direction, frame body by under the rolling support of idler wheel along cross-arm Axial movement thus may be implemented the purpose that control weight is translated along cross-arm, that is, there is fine tuning hoisting heavy level to move Dynamic function is particularly suitable for power system staff when power equipment is lifted by crane in field, due to placing destination locations to equipment Preliminary judgement is inaccurate, and since this Simple detachable electric power lifting device sink under equipment gravity toward soft terrain and Cause emergency fine tuning when not easily shifted equipment to use, helps to improve mobile success rate and construction efficiency.

In this Simple detachable electric power lifting device, the cross-arm both ends between two support frames are also separately installed with an end Pulley, two head sheaves are located at that cross-arm is ipsilateral with two side rollers, and head sheave and side roller shaft are arranged in parallel and the same end Head sheave is between side roller and support frame.For convenience of narration, the corresponding cross arm end of wirerope winding terminal is known as going up and down The other end is known as translating end by end.This Simple detachable electric power lifting device further includes that top is matched with two head sheaves Steel wire ring, steel wire ring are the ring that head and the tail are fixed together.Steel wire ring top is set on two head sheaves, steel wire ring lower part It is sleeved in the corresponding manual pulley in translation end.Steel wire loop section between lift side head sheave and translation end manual pulley is also wrapped in On the side roller for translating end, the arrangement track of steel wire ring entire so is just rendered as an inverted L shape.Two head sheaves it Between steel wire loop section it is corresponding with frame body be fixed together, in this way, when the winding mechanism crank at worker's rotational translation end, manually Wheel will drive steel wire encircling head sheave and side roller rotation.Due to the steel wire loop section between two head sheaves be almost with cross-arm Axis is parallel, and therefore, when steel wire ring rotation, steel wire ring will drive frame body along cross-arm axial translation, thereby realize band The function that dynamic equipment or weight are translated along cross-arm.

Due to two sets of winding mechanisms on two support frames be it is identical, translate end winding mechanism also have it is dual locked Therefore function after crank, which is rotate in place, makes frame body be moved to cross-arm suitable position, need only unclamp and control the upper of upper pawl Handle and the lower handle for controlling lower pawl, manual pulley either will all be lockked in forward rotation direction or reverse directions inflexibly, this Sample rack body is also just locked on cross-arm inflexibly, and the equipment or weight that grabhook is lifted cannot also be put down in the horizontal direction again It moves, it is easy to operate, reliable and stable.When needing to translate, corresponding upper handle or lower handle are pulled, makes pawl or lower pawl Then unlock is just able to rotate crank rotation, also can be mobile to the direction of needs by equipment or weight, very convenient.

In this Simple detachable electric power lifting device, head sheave is bigger than the outer diameter of side roller, and low at the top of side roller At the top of head sheave, side roller bottom is higher than head sheave bottom.The first purpose being arranged in this way is avoided between two head sheaves Steel wire loop section when passing through the side roller top of lift side with the side roller body upper part or wirerope friction thereon, to protect Demonstrate,prove structural stability and the service life of wirerope and steel wire ring.The second purpose be avoid lift side head sheave and translation end side pulley it Between steel wire loop section rub when by lift side side roller lower part with the side roller lower part, to play guarantee steel wire The effect of the structural stability and service life of ring.

In this Simple detachable electric power lifting device, side roller axial width is much larger than head sheave axial width.In this way The purpose of setting is because of support frame is general triangular structure, and winding mechanism is arranged in the middle part of master arm again, therefore Horizontal distance of the manual pulley apart from cross-arm on winding mechanism is biggish.And the side roller and head sheave on cross-arm are apart from cross-arm Horizontal distance it is then relatively close, thus necessarily making the wirerope between lift side side roller and lift side manual pulley is to be obliquely installed 's.And side roller axial width is arranged much larger than head sheave axial width, it is exactly in order in the horizontal direction by lift side Wirerope and steel wire ring motion track at side roller are non-interference when misplacing, working, and avoid the two intersection friction, ensure that work Make reliability and service life.

Claims (1)

1. a kind of Simple detachable electric power lifting device, it is characterized in that: including cross-arm (1), cross-arm (1) both ends are provided with support frame (2), by mounting rack (3) installation, there are two fixed pulley (4) on cross-arm (1), further include crane boom (5), crane boom (5) lower end is solid It equipped with grabhook (10), is equipped on crane boom (5) movable pulley (6), crane boom (5) upper end is connected with wirerope (7), wirerope (7) after by bypassing fixed pulley (4) upper half wheel among two fixed pulleys (4), further around movable pulley (6) lower half wheel is crossed, finally lead to It crosses around another fixed pulley upper half wheel between two fixed pulleys (4), support frame (2) includes the sliding sleeve for being sleeved on cross-arm (1) both ends (13), master arm (14) vertically are installed in the middle part of sliding sleeve (13), further include secondary support arm (15), secondary support arm (15) upper end is solid Equipped with U-shaped frame (16), U-shaped frame (16) both ends are installed with the pivoted housing (17) being rotatably assorted with sliding sleeve (13) both ends, and sliding sleeve (13) is interior It is installed with land (18) on the cross-arm (1) at end, the cross-arm (1) of sliding sleeve (13) outer end is equipped with vertical location hole (19), positioning It is fitted with locating shaft (20) in hole (19), locating shaft (20) upper end is installed with block (21), master arm (14) and secondary support arm (15) middle part is provided with the adjustment mechanism both be adjustable, fix angle, and support frame is equipped with winding mechanism, coil winding machine on (2) Structure includes the manual pulley (8) by crank (9) by shaft (11) driving rotation, and the fixation of wirerope (7) end is wrapped in a hand On driving wheel (8), master arm (14) and secondary support arm (15) bottom are provided with self-locking universal wheel (32);Two support frames (2) Between cross-arm (1) both ends it is ipsilateral be separately installed with a side roller (38), wirerope (7) bypasses corresponding side roller (38) It is intertwined afterwards with manual pulley (8) fixation;Mounting rack (3) includes the frame body (35) that is sleeved on cross-arm (1), on frame body (35) Portion is uniformly equipped with the idler wheel (36) with the cooperation of cross-arm (1) top surface rolling support, cross-arm (1) both ends between two support frames and right It answers and is separately installed with a head sheave (37) between side roller (38), head sheave (37) is big than the outer diameter of side roller (38), side Lower than at the top of head sheave (37) at the top of pulley (38), side roller (38) bottom is higher than head sheave (37) bottom, side roller (38) axis It is much larger than head sheave (37) axial width to width, corresponding cross-arm (1) end of wirerope (7) winding terminal is lift side, another End is translation end, further includes steel wire ring (39), steel wire ring (39) top covers on two head sheaves (37), steel wire ring (39) lower part It is wrapped in the manual pulley (8) at translation end, the steel wire ring (39) between lift side head sheave (37) and translation end manual pulley (8) is also It is wound on side roller (38) top at translation end, the steel wire ring (39) and frame body (35) between two head sheaves (37) are fixedly connected on one It rises.
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CN108249336B (en) * 2018-01-25 2019-02-12 重庆信海科技有限公司 A kind of stable high-altitude hanging object device
CN108506038B (en) * 2018-03-19 2019-11-05 山东里能鲁西矿业有限公司 A kind of adjustable height assembled belt bridge
CN109051988A (en) * 2018-06-27 2018-12-21 芜湖博康机电有限公司 A kind of adjustable harness rack
CN108946545A (en) * 2018-08-17 2018-12-07 中国冶集团有限公司 A kind of packaged type circular formwork Lift-on/Lift-off System

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