CN104477807B - A kind of brake clutch device of Lever Blocks - Google Patents
A kind of brake clutch device of Lever Blocks Download PDFInfo
- Publication number
- CN104477807B CN104477807B CN201410793832.3A CN201410793832A CN104477807B CN 104477807 B CN104477807 B CN 104477807B CN 201410793832 A CN201410793832 A CN 201410793832A CN 104477807 B CN104477807 B CN 104477807B
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- Prior art keywords
- torsion spring
- brake
- handwheel
- major axis
- ratchet
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
- F16D67/02—Clutch-brake combinations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
-
- 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
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
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- 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
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D2066/008—Arrangements for monitoring working conditions, e.g. wear, temperature of clutches
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses the brake clutch device of a kind of Lever Blocks, brake seat, brake ratchet, commutation ratchet, torsion spring seat, handwheel and fixed component including the major axis being sequentially sleeved at Lever Blocks, brake seat and major axis are circumferentially fixed, the both sides of brake ratchet are respectively arranged with friction plate, use between commutation ratchet and major axis and threaded, torsion spring seat and commutation ratchet between circumferentially fixed, the major axis between torsion spring seat and handwheel is cased with torsion spring；Being additionally provided with spring steel ball between torsion spring seat and handwheel, the end face of torsion spring seat is provided with the depressed part accommodating spring steel ball, handwheel and major axis are circumferentially fixed；Handwheel surface configuration has instruction handwheel and the torsion spring seat instruction point relative to change in location, and torsion spring seat end face is provided with display instruction and puts the indicating area of change in location.The brake clutch device of the present invention in the case of not taking Lever Blocks apart, can observe directly the state of wear of friction plate, thus more renewal of facing renewal in time.
Description
Technical field
The invention belongs to technical field of crane equipment, be specifically related to the brake clutch device of a kind of Lever Blocks.
Background technology
Lever Blocks is to pull spanner by manpower manual, and by lever principle, thus obtain and load phase
The straight line tractive force of coupling, thus drive weight to realize moving up and down.Owing to Lever Blocks volume is little, weight
Gently, therefore carry and operate the most very convenient, it is adaptable to the weight of less tonnage.
Existing Lever Blocks, mainly uses and is cased with brake ratchet, friction plate, commutation spine on major axis successively
Wheel, positioning element, use between commutation ratchet and major axis and threaded, during lifting heavy, first stir and pull
Commutation ratchet on hand engages with commutation ratchet, when pulling spanner, can drive commutation pawl wheel by spanner,
During commutation pawl wheel, due to major axis for threadeding, commutation is while ratchet circumferentially rotates, the most adjoint
And move axially, pressing friction sheet, drive brake ratchet to rotate forward, during upset, then can realize braking, anti-
Only weight falls suddenly.When declining weight, pull commutation ratchet and make its other end engage, instead with commutation ratchet
To pulling spanner, weight can be realized and decline.
In the Chinese invention patent of Patent No. 200720111423.6, disclose a kind of Lever Blocks and control system
Dynamic arrangement of clutch, on the basis of existing Lever Blocks, leads to when hand-operated hoister empty stop needs lifting chain,
A circumferential thrust can be provided to arrestment mechanism so that arrestment mechanism is braked, need at hand-operated hoister empty stop
When wanting rapid decrease, thrust can be released so that chain can quickly rise or fall.
But above-mentioned Lever Blocks there is a problem in that owing to friction plate is the core of whole Lever Blocks
Part, friction plate is not only related to lifting and the decline of weight, and friction disc wear is serious simultaneously, braking parts partial volume
Easily lost efficacy, thus produced security incident.Owing to friction plate is positioned in the housing of Lever Blocks, it is desirable to know and rub
The state of wear of pad, it is necessary to taken apart by the housing of Lever Blocks, just can check, therefore, for
This crane gear of Lever Blocks, for safety, it is necessary to makes regular check on the friction disc wear feelings of Lever Blocks
Condition, but dismounting Lever Blocks is the most cumbersome.
Summary of the invention
It is an object of the invention to: in prior art check Lever Blocks friction plate state of wear time,
There is the problem that dismounting Lever Blocks is inconvenient, it is provided that the brake clutch device of a kind of Lever Blocks, by this
Brake clutch device, can take Lever Blocks apart and get final product the abrasion condition of Real Time Observation friction plate, in friction
When pad wear is too much, take Lever Blocks, more renewal of facing renewal, convenient and safety in time apart.
To achieve these goals, the technical solution used in the present invention is:
The brake clutch device of a kind of Lever Blocks, including the brake of the major axis being sequentially sleeved at Lever Blocks
Seat, brake ratchet, commutation ratchet, torsion spring seat, handwheel and fixed component, and one end limited by brake seat
Position is fixing, and the other end is spacing fixing by fixed component；Brake seat and major axis are circumferentially fixed, brake spine
The both sides of wheel are respectively arranged with friction plate, use and threaded between commutation ratchet and major axis, torsion spring seat with change
By being mutually clamped and circumferentially fixed between ratchet, the major axis between torsion spring seat and handwheel is cased with torsion spring,
One end is stuck in torsion spring seat, and the other end is stuck in handwheel；Spring steel ball it is additionally provided with between torsion spring seat and handwheel,
And spring steel ball is nested in handwheel, the end face of torsion spring seat is provided with the depressed part accommodating spring steel ball, hand
Wheel is circumferentially fixed with major axis；Handwheel surface configuration has the instruction relative to change in location of instruction handwheel and torsion spring seat
Point, torsion spring seat end face is provided with the indicating area of display instruction point change in location.
Preferably, described indicating area includes original state region, the work being arranged side by side the most successively
State region and state of wear region.
Preferably, the end face of torsion spring seat is additionally provided with the recessed groove accommodating spring steel ball, recessed groove circumferentially side
It is arranged side by side to depressed part, and along deviating from the direction cup depth of depressed part from the superficial to the deep；Depressed part is with just
Beginning state region is corresponding, and recessed groove and operating condition, state of wear region are corresponding.
Preferably, described brake seat is spacing fixing by the step on major axis, described fixed component
Use nut.
Preferably, use spline to be connected between described brake seat and major axis, use between handwheel and major axis
Spline connects.
Preferably, the circumferential surface of torsion spring seat is provided with annular knurl.
Preferably, described depressed part is circular hole, is provided with and accommodates the bushing of spring steel ball in circular hole.Preferably
Ground, described brake ratchet is placed on brake seat by ratchet lining.
Owing to have employed technique scheme, the invention has the beneficial effects as follows:
The brake clutch device of a kind of Lever Blocks of the present invention, by arranging instruction point, torsion spring on handwheel
Indicating area is set on Zuo, observes handwheel position relative with torsion spring seat by instruction point with indicating area and become
Change, thus understand the wear condition of the friction plate being positioned in Lever Blocks housing, Lever Blocks need not be taken apart i.e.
The wear condition of friction plate be can be observed, simple, directly perceived, convenient；And it is provided by cup depth by shallow
Enter deep recessed groove, when lifting heavy, reduce the comparative resistance between handwheel and torsion spring seat, accurately show
Relative change in location between handwheel with torsion spring seat.
When the operating condition of the indicating area that the instruction point of handwheel indicates on torsion spring seat, due to torsion spring
Effect under, it is ensured that commutation ratchet extrusion friction sheet all the time, in the case of uncharged, can directly pull and pull
Portable liter of hoisting chain, and drag hoisting chain without hand and the power promoting or declining is provided.
When the instruction point of handwheel indicates the original state region of the indicating area on torsion spring seat, can rapid decrease
The hoisting chain of Light Condition, if the acceleration declining hoisting chain is excessive, commutation ratchet then cannot and be grown
Axle formation rotates coaxially, and commutation ratchet can automatically screw in major axis and fit with friction plate, and the instruction point of handwheel can be certainly
Dynamic instruction, to operating condition, is formed from main brake, prevents the acceleration that the hoisting chain of Light Condition declines
Spend the potential safety hazard brought greatly.
When the instruction point of handwheel indicates the operating condition of the indicating area on torsion spring seat, and decline goods
Time lighter, it is possible to prevent operating personnel's maloperation, the instruction point of handwheel is got to the original state of indicating area
Region realizes rapid decrease goods, thus avoids the generation of security incident.
Accompanying drawing explanation
Fig. 1 is the Lever Blocks front view of the present invention.
Fig. 2 is the brake clutch device structural representation of the present invention.
Fig. 3 is the brake clutch device decomposing schematic representation of the present invention.
Fig. 4 is the torsion spring seat structural representation of the present invention.
Marking in figure: 11-fixed component, 12-handwheel, 121-indicates point, 13-torsion spring, 14-spring steel ball,
15-torsion spring seat, 151-indicating area, 151a-original state region, 151b-operating condition, 151c-
State of wear region, 152-depressed part, 153-recessed groove, 16-commutates ratchet, 17-brake ratchet, 18-
Friction plate, 19-brake seat, 191-ratchet lining, 20-major axis, 30-hoisting chain, 40-spanner, 50-
Main part.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, the Lever Blocks of the present invention includes main part 50, through there being length in main part 50
Axle 20, major axis 20 is cased with brake clutch device, spanner 40, gear drive (not shown) respectively,
It is cased with hoisting chain 30 on gear drive, drives brake clutch device action by spanner 40, thus carry
Dynamic major axis 20 rotates, and when major axis 20 rotates, drives the gear drive of major axis 20 end to rotate, thus
Hoisting chain 30 on driven gear transmission mechanism promotes or declines, thus realizes the lifting of weight.
With reference to Fig. 2, Fig. 3, Fig. 4, the brake clutch device of the Lever Blocks of the present invention, including the most sheathed
The brake seat 19 of major axis 20 of Lever Blocks, brake ratchet 17, commutation ratchet 16, torsion spring seat 15,
Handwheel 12 and fixed component 11, and one end is spacing fixing by brake seat 19, the other end passes through fixed part
Part 11 is spacing fixing, and brake seat 19 is spacing fixing by the step on major axis 20, described fixed part
Part 11 uses nut.Brake seat 19 uses spline to be connected with major axis 20, thus realizes circumferentially fixed, system
The both sides of dynamic ratchet 17 are respectively arranged with friction plate 18, and brake ratchet 17 is placed on system by ratchet lining 191
On dynamic device seat 19.Use between commutation ratchet 16 and major axis 20 and threaded, torsion spring seat 15 and commutation spine
By being mutually clamped and circumferentially fixed between wheel 16, set on the major axis 20 between torsion spring seat 15 and handwheel 12
Having torsion spring 13, torsion spring 13 one end to be stuck in torsion spring seat 15, the other end is stuck in handwheel 12；Torsion spring seat 15 and handwheel
It is additionally provided with spring steel ball 14 between 12, and spring steel ball 14 is nested in handwheel 12, torsion spring seat 15
Being provided with the depressed part 152 accommodating spring steel ball 14 on end face, depressed part 152 uses circular hole to design, circular hole
In be filled with bushing, can select corresponding bushing, it is ensured that spring steel ball 14 according to the size of steel ball
Pressure is certain, and 8mm steel ball selected by the steel ball in the present embodiment.Handwheel 12 is connected for spline with major axis 20,
Thus realize circumferentially fixed；Handwheel 12 surface configuration has instruction handwheel 12 change in location relative with torsion spring seat 15
Instruction point 121, torsion spring seat 15 end face be provided with display instruction point 121 change in location indicating area 151.
Indicating area 151 includes original state region 151a, the operating condition being arranged side by side the most successively
151b and state of wear region 151c.The circumferential surface of torsion spring seat 15 is provided with annular knurl, it is simple to torsion spring seat 15
Rotation.
During original state, instruction point 121 instruction of handwheel 12 is at the beginning of indicating area 151 on torsion spring seat 15
Beginning state region 151a, the spring steel ball 14 in the middle of handwheel 12 is positioned at the depressed part on torsion spring seat 15 simultaneously
In 152, so that handwheel 12 and torsion spring seat 15 keep one to be relatively fixed.
The operation principle of the Lever Blocks of the present invention:
When needing lifting heavy, first the commutation ratchet on spanner 40 is controlled end 16a and gets to " UP " shelves,
Commutation ratchet in spanner 40 is engaged with commutation ratchet 16, then on the other hand torsion spring seat 15 is maintained static,
Another hand rotation hand wheel 12, during original state, the instruction point 121 of handwheel 12 is directed on torsion spring seat 15 finger
Show the original state region 151a in region 151, after rotating counterclockwise, instruction point 121 alignment indicating area 151
The medium position of operating condition 151b.In the present embodiment, as shown in Figure 1 and Figure 4, hoisting chain
The hook of 30 is positioned at left side, and on major axis 20, the screw thread of corresponding commutation ratchet 16 uses dextrorotation, original state district
Territory 151a, operating condition 151b and state of wear region 151c are followed successively by layout counterclockwise.Due to hand
Wheel 12 is connected for spline with major axis 20, and during rotation hand wheel 12 counterclockwise, major axis 20 also does rotation counterclockwise；
Owing to major axis 20 and commutation ratchet 16 are threaded, when therefore major axis 20 rotates counterclockwise, commutate ratchet
16 meetings are towards brake ratchet 17 1 side shifting, thus extrusion friction sheet 18, it is achieved pretension.Pull the most again
Spanner 40, controls commutation ratchet 16 and rotates clockwise, now, and handwheel 12, torsion spring seat 15, commutation ratchet
16, brake ratchet 17 is integrated with major axis 20, rotates simultaneously, drives heavy lift.Meanwhile, if weighed
Thing drives major axis 20 to rotate backward, and major axis 20 can be by the friction plate of commutation ratchet 16 with brake ratchet 17
18 effects, it is achieved braking, prevent weight from falling suddenly.By constantly pulling spanner 40, weight can be realized
Gradually rising of thing.
When needs decline weight, the commutation ratchet on spanner 40 is controlled end 16a and gets to " DOWN " shelves,
Make to commutate ratchet to engage with the ratchet 16 that commutates.Pull spanner 40, control commutation ratchet 16 and rotate counterclockwise,
Commutation ratchet 16 disengages with the friction plate 18 of brake ratchet 17, releases the brake ratchet 17 system to major axis 20
Dynamic, major axis 20, under the effect of weight, rotates clockwise, and while rotating clockwise, passes through threaded engagement
The relative major axis 20 of commutation ratchet 16 for rotating counterclockwise, when turning to the friction plate 18 with brake ratchet 17
When fitting, brake ratchet 17 realizes the braking to major axis 20.By constantly pulling spanner 40,
Realize the progressively decline of weight.
When Light Condition, the commutation ratchet on spanner 40 is controlled end 16a and gets to centre position so that change
It is disengaged with commutation ratchet 16 to ratchet, the instruction point 121 of handwheel 12 is directed at original state district simultaneously
Territory 151a.Owing to handwheel 12 and major axis 20 are all located at initial position, commutation ratchet 16 and brake ratchet 17
On friction plate 18 between there is no pretightning force, therefore brake ratchet 17 cannot realize braking, at this moment, arbitrarily
Pull hoisting chain 30, hoisting chain 30 can be realized and quickly lift.
The brake clutch device of the present invention, before lifting heavy, needs original being rotated to by rotation hand wheel 12 to refer to
Show the operating condition 151b of a little 121 instructions, i.e. realize depositing between commutation ratchet 16 and brake ratchet 17
In pretightning force.When lifting heavy, if there is not abrasion in friction plate 18, then commutation ratchet 16 and system
Gap between dynamic ratchet 17 should be basically identical with during original state, the now instruction point 121 of handwheel 12
Operating condition 151b is arrived in instruction.Along with the long-time use of Lever Blocks, can there is abrasion in friction plate 18,
So gap between commutation ratchet 16 and brake ratchet 17 can reduce, in order to reduce this gap, and spine of commutating
Wheel 16 can further rotate on the basis of original major axis 20, at this moment, and major axis 20 and commutation ratchet 16
Certain dislocation can occur, owing to handwheel 12 is circumferentially fixed with major axis 20, commutation ratchet 16 and torsion spring seat
15 for being fixed, and therefore handwheel 12 and torsion spring seat 15 also can occur the dislocation of correspondence, the finger on handwheel 12
Show and a little 121 then indicate the state of wear region 151c on torsion spring seat 15, i.e. explanation friction plate 18 by
Abrasion.
It is the most that friction plate 18 weares and teares, and the gap between commutation ratchet 16 and brake ratchet 17 is the least, major axis
20 and commutation ratchet 16 between rotate position the most, between handwheel 12 and torsion spring seat 15 rotary shifted just
The most, instruction point 121 instruction the most all the more deviates from operating condition 151b to state of wear region 151c, as
When the position of fruit instruction point 121 instruction is well beyond state of wear region 151c, then explanation friction plate 18
Need to change, at this moment taken Lever Blocks, the most more renewal of facing renewal 18 apart.
Owing to being provided with spring steel ball 14 and depressed part 152 between handwheel 12 and torsion spring seat 15, for by hand
Wheel 12 and torsion spring seat 15 are clamped down at same circumferential position when original state, in order to when friction plate 18 weares and teares,
Between handwheel 12 and torsion spring seat 15 when there is relative dislocation, it is possible to be more prone to relatively rotate, because of
This is additionally provided with the recessed groove 153 accommodating spring steel ball 14 at the end face of torsion spring seat 15, and recessed groove 153 is along circle
Circumferential direction is arranged side by side with depressed part 152, and along deviating from the direction cup depth of depressed part 152 from the superficial to the deep；
Depressed part 152 is corresponding with original state region 151a, recessed groove 153 and operating condition 151b, mill
Damage state region 151c corresponding.When there is relative dislocation between handwheel 12 and torsion spring seat 15, spring steel
The slip that ball 14 can be more prone in degree of depth recessed groove 153 from the superficial to the deep.
Duty district when the indicating area 151 that the instruction point 121 of handwheel 12 indicates on torsion spring seat 15
During the 151b of territory, due under the effect of torsion spring 14, it is ensured that commutation ratchet 16 extrusion friction sheet 18 all the time, in nothing
In the case of load, it is also possible to promote hoisting chain 30 by the way of directly pulling spanner 40, and without
Hand is dragged hoisting chain 30 and is provided the power promoting or declining.
Original state district when the indicating area 151 that the instruction point 121 of handwheel 12 indicates on torsion spring seat 15
Territory 151a, can the hoisting chain 30 of rapid decrease Light Condition, if declining the acceleration of hoisting chain 30
Excessive, commutation ratchet 16 then cannot be formed with major axis 20 and rotate coaxially, and commutation ratchet 16 can screw in length automatically
Axle 20 is fitted with friction plate 18, and the instruction point 121 of handwheel 12 instruction can arrive operating condition 151b automatically,
Being formed from main brake, excessive the brought safety of acceleration preventing the hoisting chain 30 of Light Condition from declining is hidden
Suffer from.
When operating personnel are when declining relatively low-density cargo, in order to realize rapid decrease goods, thus handwheel 12
Instruction point 121 gets to the original state region 151a of indicating area 151 to realize the rapid decrease of goods, this
Plant operation and there is great potential safety hazard, therefore when declining goods, if acceleration is excessive, commutation
Ratchet 16 then cannot be formed with major axis 20 and rotate coaxially, and commutation ratchet 16 can screw in major axis 20 and rub automatically
Pad 18 is fitted, and the instruction point 121 of handwheel 12 can to operating condition 151b, be formed certainly automatically in instruction
Main brake, prevents the potential safety hazard that the maloperation of light condition is brought.
Claims (8)
1. the brake clutch device of a Lever Blocks, it is characterised in that include being sequentially sleeved at Lever Blocks
The brake seat (19) of major axis (20), brake ratchet (17), commutation ratchet (16), torsion spring seat (15),
Handwheel (12) and fixed component (11), and one end is spacing fixing by brake seat (19), the other end leads to
Cross fixed component (11) spacing fixing；Brake seat (19) is circumferentially fixed with major axis (20), braking
The both sides of ratchet (17) are respectively arranged with friction plate (18), commutation ratchet (16) and major axis (20) it
Between use threaded, torsion spring seat (15) and commutation ratchet (16) and between by be mutually clamped circumference consolidate
Fixed, the major axis (20) between torsion spring seat (15) and handwheel (12) is cased with torsion spring (13), torsion spring (13)
One end is stuck in torsion spring seat (15), and the other end is stuck in handwheel (12)；Torsion spring seat (15) and handwheel (12) it
Between be additionally provided with spring steel ball (14), and spring steel ball (14) is nested in handwheel (12), torsion spring seat (15)
End face on be provided with the depressed part (152) accommodating spring steel ball (14), handwheel (12) and major axis (20)
For circumferentially fixed；Handwheel (12) surface configuration has instruction handwheel (12) and torsion spring seat (15) relative position
Instruction point (121) of change, torsion spring seat (15) end face is provided with display instruction point (121) change in location
Indicating area (151).
Brake clutch device the most according to claim 1, it is characterised in that described indicating area (151)
Including the original state region (151a) being arranged side by side the most successively, operating condition (151b) and mill
Damage state region (151c).
Brake clutch device the most according to claim 2, it is characterised in that the end of torsion spring seat (15)
Face is additionally provided with the recessed groove (153) accommodating spring steel ball (14), and recessed groove (153) is along the circumferential direction
It is arranged side by side with depressed part (152), and along deviating from the direction cup depth of depressed part (152) from the superficial to the deep；
Depressed part (152) is corresponding with original state region (151a), recessed groove (153) and operating condition
(151b), state of wear region (151c) is corresponding.
Brake clutch device the most according to claim 1, it is characterised in that described brake seat (19)
Spacing fixing by the step on major axis (20), described fixed component (11) uses nut.
Brake clutch device the most according to claim 1, it is characterised in that described brake seat (19)
It is connected with using spline between major axis (20), between handwheel (12) with major axis (20), uses spline to be connected.
Brake clutch device the most according to claim 1, it is characterised in that the circle of torsion spring seat (15)
Perimeter surface is provided with annular knurl.
Brake clutch device the most according to claim 1, it is characterised in that described depressed part (152)
For circular hole, circular hole is provided with and accommodates the bushing of spring steel ball (14).
Brake clutch device the most according to claim 1, it is characterised in that described brake ratchet (17)
It is placed on brake seat (19) by ratchet lining (191).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410793832.3A CN104477807B (en) | 2014-12-18 | 2014-12-18 | A kind of brake clutch device of Lever Blocks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410793832.3A CN104477807B (en) | 2014-12-18 | 2014-12-18 | A kind of brake clutch device of Lever Blocks |
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| Publication Number | Publication Date |
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| CN104477807A CN104477807A (en) | 2015-04-01 |
| CN104477807B true CN104477807B (en) | 2016-09-07 |
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| CN201410793832.3A Active CN104477807B (en) | 2014-12-18 | 2014-12-18 | A kind of brake clutch device of Lever Blocks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106829783A (en) * | 2017-02-27 | 2017-06-13 | 浙江双鸟机械有限公司 | Lever Blocks load lift safety arrestment clutch |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306647B9 (en) * | 2019-05-08 | 2020-12-01 | 安徽企路石工程技术开发有限公司 | Equipment for electric power system maintenance |
| CN113321145A (en) * | 2021-05-20 | 2021-08-31 | 河北高鹏机械制造有限公司 | Improved structure of transmission thread of reversing ratchet wheel and long shaft for lever block |
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| GB2196929A (en) * | 1986-09-10 | 1988-05-11 | Vital Chain Block Mfg | Hoist |
| CN200949621Y (en) * | 2006-06-30 | 2007-09-19 | 新疆金风科技股份有限公司 | Prompting device for replacing high-speed brake friction plate of wind-driven generator group |
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|---|---|---|---|---|
| CN106829783A (en) * | 2017-02-27 | 2017-06-13 | 浙江双鸟机械有限公司 | Lever Blocks load lift safety arrestment clutch |
| CN106829783B (en) * | 2017-02-27 | 2019-08-20 | 浙江双鸟机械有限公司 | Lever Blocks load lift safety arrestment clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104477807A (en) | 2015-04-01 |
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