CN106185678A - A kind of loop chain tightener - Google Patents
A kind of loop chain tightener Download PDFInfo
- Publication number
- CN106185678A CN106185678A CN201610759331.2A CN201610759331A CN106185678A CN 106185678 A CN106185678 A CN 106185678A CN 201610759331 A CN201610759331 A CN 201610759331A CN 106185678 A CN106185678 A CN 106185678A
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- CN
- China
- Prior art keywords
- wheel
- handwheel
- nut
- stop
- major axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B66D3/16—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable operated by an endless chain passing over a pulley or a sprocket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/05—Brakes with mechanisms with latches for hoists or similar devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The invention belongs to small-sized receive lifting pulling equipment technical field, particularly a kind of loop chain tightener, including frame, drive mechanism, operating mechanism, clutch and tail ring limiting mechanism, described clutch includes brake seat, ratchet, stop-nut, hands is taken turns, position wheel and the adjustment wheel being arranged between stop-nut and handwheel and clutch torsion spring, the wheel both sides of described ratchet are provided with friction plate, described handwheel sleeve be connected on major axis and with described stop-nut synchronous axial system, it is provided with detent mechanism between described handwheel and location wheel, described detent mechanism makes handwheel relatively rotate with location wheel holding or be relatively fixed.The present invention is simple to operation, good braking effect, safety height, duty switching is simple, flexibly, only need to apply less power by handwheel can make brake normally work, and due to the effect of torsion spring, both the pressure of stop-nut and ratchet had been increased, ensure that braking effect, prevent again stop-nut from getting loose, improve security performance.
Description
Technical field
The invention belongs to small-sized hand-operated lifting pulling equipment technical field, particularly a kind of loop chain tightener.
Background technology
Loop chain tightener is by handle drives chain by manpower, with the lifting gear driving load-engaging device to move.Its knot
Structure is compact, easy to carry, easily operates, it is adaptable to outlying district and the lifting in field, drags and draws operation, and promote and drag draw away from
From unrestricted.Particularly in the stringing operation of power industry, usually require that wire stretcher has and drag chain function, at Light Condition
Time can quickly drag chain, improve work efficiency.
In prior art, such as: application number 200710068510.2 China a kind of legerity type aluminum described in utility model closes
Gold loop chain tightener, it drags brake seat in chain mechanism and loads the left side of long shaft gear by spline, and friction plate empty set is being braked
On device seat, brake spring is placed between brake seat and brake nut, and the operation principle of this mechanism is to utilize clutch bullet
The elastic force of spring makes brake get loose when zero load, thus drags chain.The most this mechanism when small load ratchet with
Friction plate skid cause brake may the problem of braking operation, there is potential safety hazard.
Summary of the invention
It is an object of the invention to provide a kind of loop chain tightener, both can guarantee that safety arrestment worked, have again unloaded free
Drag the function of chain.
The technical scheme is that: a kind of loop chain tightener, including frame, drive mechanism,
Operating mechanism, clutch and tail ring limiting mechanism, described drive mechanism includes major axis, is arranged on frame side and major axis one end
Engagement travelling gear, be set on major axis the idler gear engaged with travelling gear and be socketed on major axis and idler gear
The chain hoist wheel connected by spline, described clutch is arranged on the opposite side of frame and is connected with the other end of major axis, institute
State clutch include brake seat, ratchet, stop-nut, handwheel, location wheel and be arranged between stop-nut and handwheel
Adjustment wheel and clutch torsion spring, described brake seat is socketed on major axis and synchronous rotation, and described ratchet sleeve is connected on braking
On device seat, the both sides of described ratchet are provided with friction plate；Described adjustment wheel be socketed on major axis and with major axis synchronous axial system, described from
Closing torsion spring be arranged on stop-nut and adjust between wheel, the termination at its two ends is connected to stop-nut and adjusts on wheel；Institute
State handwheel sleeve be connected on major axis and with described stop-nut synchronous axial system, described location wheel and major axis synchronous axial system and relative handwheel
Rotating along long axis ray, be provided with detent mechanism between described handwheel and location wheel, described detent mechanism makes handwheel protect with location wheel
Hold and relatively rotate or be relatively fixed.
Loop chain tightener of the prior art, when load, makes stop-nut pressing friction sheet and spine by rotating handwheel
Wheel, makes ratchet rotate together by frictional force, and it is disadvantageously, when rotating handwheel, brake spring is compressed, the elastic force of generation
Act on stop-nut, make stop-nut be difficult to by friction plate and compress ratchet, and stop-nut is big with the pressure of ratchet
The little size depending entirely on the power that user is applied on handwheel, the tightest by stop-nut and ratchet pressure, braking effect is more
Good, the power on handwheel that acts on is the biggest, and user operation is the hardest.And in use due to vibration and brake spring
Elastic force effect so that stop-nut convolution and cause dynamic nut and the pressure of ratchet to reduce, ratchet easily skids and causes losing
Braking function.The present invention is provided with location wheel, adjusts wheel and clutch torsion spring, when zero load, by hand wheel rotating stop-nut, makes
Brake gets loose, and now detent mechanism runs and handwheel, stop-nut is connected as a single entity, with major axis together with adjustment wheel and location wheel
Rotating, now chain can freely drag；When load, rotational positioning is taken turns so that it is separate with handwheel, makes system by rotating handwheel
Dynamic nut compresses ratchet, and torsion spring is by, on twisting force to stop-nut, making stop-nut automatic impaction ratchet, by this simultaneously
Dual function makes stop-nut compress ratchet, it is ensured that braking effect.
As preferably, one end of described stop-nut is provided with snap-arms, forms buckling groove, institute between adjacent two snap-arms
State stop-nut by snap-arms and buckling groove and described handwheel clamping.
As preferably, the described wheel that adjusts is provided with stop part, the end of described clutch one end near one end of clutch torsion spring
Head is fixed on described stop part.
As preferably, described location wheel is socketed in handwheel, and the described wheel that adjusts is connected to major axis with location wheel by spline
On, and be fixed on major axis by nut.
As preferably, described detent mechanism includes the locating slot being arranged on the wheel of location, the hole, location being arranged on handwheel
With the keeper being arranged in hole, location and spring, described keeper moves in hole, location under the elastic force effect of spring, makes
It is pressed on location and takes turns above or in locating slot, makes handwheel and location wheel holding relatively rotate or be relatively fixed.
As preferably, described handwheel is provided with positioning seat, and hole, described location is arranged on positioning seat.
As preferably, described tail ring limiting mechanism includes that limited block, chain end-rings are connected on described limited block, described
Limited block is provided with card key way, and described card key way is provided with and moves to the opening in described card key way, and described card key way for chain
Opening part be provided with stop chain removal card key way block piece.
As preferably, described block piece is plugged on limited block, described limited block be provided with block piece is fixed on spacing
Lockable mechanism on block, described lockable mechanism includes lockhole, the elastic component being arranged in lockhole and tapered end, the one of described block piece
End is provided with locked groove, and described tapered end is connected in locked groove under the elastic force effect of elastic component, makes block piece be fixed on limited block.
As preferably, described frame is split-type structural, and including left frame and right frame, described frame is provided with by a left side
Frame merges the sprocket wheel installation room for installing chain hoist wheel formed, the upper surface of described frame and described frame with right frame
The angle of side end face be provided with the installation portion risen to the bait for installation, described installation portion includes the left side being arranged on described left frame
Installation portion, the right installation portion being arranged in described right frame, and be arranged between described left installation portion and right installation portion recessed
Shape groove.
As preferably, described sprocket wheel installation room is unidirectional opening, and opening direction is arranged down, described sprocket wheel installation room
Opening part is provided with guide block, and sprocket wheel installation room is divided into the guide chain groove that two chains of formation are current, described guide chain groove by described guide block
For cross recess.
The present invention has following beneficial effect: the present invention is simple to operation, good braking effect, safety height, and work shape
State switching is simple, flexible, only need to apply less power by handwheel and brake can be made normally to work, and due to the work of torsion spring
With, both increased the pressure of stop-nut and ratchet, it is ensured that braking effect, and prevented again stop-nut from getting loose, improve safety
Performance.
Accompanying drawing explanation
Fig. 1 is the exploded view of the embodiment of the present invention；
Fig. 2 is the sectional view of the embodiment of the present invention；
Fig. 3 is the structural representation of clutch in the embodiment of the present invention；
Fig. 4 is the structural representation of detent mechanism in the embodiment of the present invention；
Fig. 5 is the structural representation of tail ring limiting mechanism in the embodiment of the present invention；
Fig. 6 is the side view cutaway drawing of tail ring limiting mechanism in the embodiment of the present invention；
Fig. 7 is the top view of tail ring limiting mechanism in the embodiment of the present invention；
Fig. 8 is the sectional view of frame in the embodiment of the present invention；
Fig. 9 is the exploded view of frame in the embodiment of the present invention；
Figure 10 is the cross-sectional view of frame in the embodiment of the present invention；
In figure, 1-frame, 11-left frame, the left installation room of 111-, 112,122-bearing mounting hole, the left installation portion of 113-, 114-
Guide block, 115-guide chain groove, 1151-parallel conductive key way, the vertical guide chain groove of 1152-, 116-jack, 117-inserting column, 118-installing hole,
The right frame of 12-, the right installation room of 121-, the right installation portion of 123-, 13-left end cap, 14-right end cap, 2-drive mechanism, 21-major axis,
22-travelling gear, 23-idler gear, 24-chain hoist wheel, 3-clutch, 31-brake seat, 32-friction plate, 33-ratchet,
34-stop-nut, 341-friction part, 342-socket part, 343-commutates ratchet, 344-snap-arms, 345-buckling groove, 35-clutch
Torsion spring, 36-adjusts wheel, 361-stop part, 362-side block portion, 363-torsion spring installing hole, 364-splined hole, and 37-handwheel, 371-is fixed
Position seat, 372-positions hole, 373-spring, 374-keeper, and 38-positions wheel, 381-rotating part, 382-locating slot, 39-ratchet,
4-operating mechanism, 41-handle, 42-commutates ratchet, 5-tail ring limiting mechanism, 51-limited block, 511-position limit arm, 5111-first
Spliced eye, 5112-the second spliced eye, 512-card key way, 513-passes through district, 52-block piece, 521-grafting termination, and 5211-locks
Groove, 522-operating portion, 53-lockable mechanism, 531-lockhole, 532-elastic component, 533-tapered end, 6-rises to the bait, hook under 7-.
Detailed description of the invention
The present embodiment is only explanation of the invention, and it is not limitation of the present invention, and those skilled in the art exist
As required the present embodiment can be made after reading this specification and there is no the amendment of creative contribution, but as long as in the present invention
Right in all protected by Patent Law.Below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment: as depicted in figs. 1 and 2, a kind of loop chain tightener, including frame 1, drive mechanism 2, operating mechanism 4, from
Closing mechanism 3 and tail ring limiting mechanism 5, the top of frame 1 is provided with rises to the bait 6, and the both sides of frame 1 are provided with left end cap 13 and right end cap
14, one end of chain is provided with lower hook 7, and tail ring limiting mechanism 5 is arranged on the other end of chain.Drive mechanism 2 includes major axis 21, sets
Put engage with major axis 21 one end in frame 1 side travelling gear 22, be set in and engage with travelling gear 22 on major axis 21
Between gear 23 and be socketed on major axis 21 chain hoist wheel 24 being connected with idler gear 23 by spline, chain hoist wheel 24 is with long
Axle 21 synchronous axial system.
As shown in Fig. 8, Fig. 9 and Figure 10, frame is split-type structural, including left frame 11 and right frame 12, left frame 11
The end face bonded to each other with right frame 12 is provided with connecting hole 116 and locating dowel 117.Frame 1 is provided with by left frame 1 with right
Frame is 2-in-1 and the sprocket wheel installation room for installing chain hoist wheel that formed, the angle of the upper surface of frame and the side end face of frame
Place is provided with the installation portion risen to the bait for installation, and installation portion includes the left installation portion 13 being arranged on left frame 1, is arranged on right frame
Right installation portion 23 on 2, and it is arranged on the Baltimore groove between left installation portion 13 and right installation portion 23.
Sprocket wheel installation room includes that left installation room 111 and right installation room 121, left installation room 111 are arranged on left frame 11 and are positioned at
On the end face of right frame 12 side, right installation room 121 is arranged on right frame 12 and is positioned on the end face of left frame 11 side.Sprocket wheel is pacified
The both sides of dress room are equipped with bearing mounting hole 112,122, and bearing mounting hole 112,122 sets up separately in left frame 11 and right frame 12
On, when left frame 11 is connected as a single entity with right frame 12, it is positioned at left frame 11 and the bearing mounting hole 112,122 in right frame 12
It is in same center of rotation.The upper end of left frame 11 is provided with left installation portion 113, and the upper end of right frame 12 is provided with right installation portion 123,
Forming Baltimore groove between left installation portion 113 and right installation portion 123, left installation portion 113 and right installation portion 123 are equipped with for installing
Rise to the bait the installing hole 118 of axle.
Sprocket wheel installation room is unidirectional opening, and opening direction is arranged down, and the opening part of sprocket wheel installation room is provided with guide block
114, sprocket wheel installation room is divided into the guide chain groove 115 that two chains are current by guide block 114.Guide chain groove 115 is cross recess, including by
It is parallel to parallel conductive key way 1151 that the single chain link of frame end face passes through and is passed through by the single chain link being perpendicular to frame end face
Vertical guide chain groove guide chain groove 1152.
Guide block 114 can be integral type structure or split-type structural, when guide block 114 is integral type structure, can pass through
Dismantled and assembled mode is fixed in frame, and in the present embodiment, guide block 114 is split-type structural, sets up separately symmetrically at left frame 11
With in right frame 12.
As shown in Figures 1 to 4, arrangement of clutch 3 includes being arranged on major axis 21 brake seat 31, stop-nut 34, hands
Take turns 37, location wheel 38 and the adjustment wheel 36 being arranged between stop-nut 34 and handwheel 37 and clutch torsion spring 35.Brake seat
31 are connected on major axis 21 by spline, and it is socketed with ratchet 33, and the wheel both sides of ratchet 33 are provided with friction plate 32, stop-nut
One end of 34 is pressed on friction plate 32, is jointly braked ratchet 33 with brake seat 31.
Adjust wheel 36 to be socketed in stop-nut 34, adjust wheel 36 and be provided with the flower that through adjustment wheel 36 makes major axis 21 pass
Keyhole 364, is adjusted wheel 36 and is connected by spline with major axis 21 and makes itself and major axis 21 synchronous axial system.Clutch torsion spring 35 is arranged on braking
Between nut 34 and adjustment wheel 36, the termination at its two ends is connected to stop-nut 34 and adjusts on wheel 36.Adjust wheel 36 to lean on
One end of nearly clutch torsion spring 35 is provided with the stop part 361 of several circle distribution, and stop part 361 is provided with torsion spring installing hole 363,
The termination of clutch torsion spring 35 one end is plugged in torsion spring installing hole 363.Stop part 361 is provided with and extends to clutch torsion spring 35 and incite somebody to action
The side block portion 362 that clutch torsion spring 35 one end surrounds.
Stop-nut 34 includes friction part 341, be arranged on friction part 341 socket part 342 and be arranged on socket part 342
On commutation ratchet 343.Friction part 341 is located close to the side of friction plate 32, and stop-nut 34 is screwed onto major axis by screw thread
On 21, regulated the gap of friction part 341 and friction plate 32 by rolling brake nut 34.Clutch torsion spring 35 and adjustment wheel 36 setting
In socket part 342, adjusting wheel 36 can rotate relative to socket part 342.Stop-nut 34 is provided with card with the junction of handwheel 37
Meeting portion, Access Division includes snap-arms 344, forms buckling groove 345 between adjacent two snap-arms 344, and handwheel 37 passes through snap-arms
344 and buckling groove 345 and stop-nut 34 clamping so that it is keep synchronous axial system with stop-nut 34.
Handwheel 37 be socketed on major axis 21 and with stop-nut 34 synchronous axial system, and can relatively adjust wheel 36 around major axis 21 axle
Line rotates.It is provided with detent mechanism between handwheel 37 and location wheel 38, makes handwheel 37 and location wheel 38 holding phase by detent mechanism
To rotating or being relatively fixed.Detent mechanism includes the locating slot 382 being arranged on location wheel 38, the location being arranged on handwheel 37
Hole 372 and the keeper 374 being arranged in hole 372, location and spring 373.Keeper 374 under the elastic force effect of spring 373
Location is moved in hole 372 so that it is be pressed on location wheel 38 or in locating slot 382, makes handwheel 37 relative with location wheel 38 holding
Rotate or be relatively fixed.Handwheel 37 is provided with some positioning seats 371 around major axis 21 circumference uniform distribution, and it is fixed that hole 372, location is arranged on
On the seat 371 of position.Location wheel 38 is provided with connecting portion 381, and locating slot 382 is arranged on connecting portion 381, and connecting portion 381 is by flower
Bonded on major axis 21, location wheel 38 is fixed on major axis 21 by nut and to make itself and major axis 21 synchronous axial system also relative handwheel
37 rotate, and are provided with the rotating part 383 for rotational positioning wheel 38 in location wheel 38.
Operating mechanism 4 includes that handle, handle 41 are provided with handle set, and handle set is arranged on right end cap 14, stop-nut
34 are arranged in handle set, and handle set is additionally provided with commutation ratchet 42, and commutation ratchet 42 engages with commutation ratchet 343, makes handle
One-directional rotation stop-nut 34 during 41 rotation.
As shown in Fig. 1, Fig. 5, Fig. 6 and Fig. 7, tail ring limiting mechanism 5 includes that limited block 51, chain end-rings are connected to limit
On the block 51 of position.Limited block 51 is provided with card key way 512, and described card key way 512 is provided with and moves to opening in card key way 512 for chain
Mouthful, and the opening part of card key way 512 be provided with stop chain removal card key way 512 block piece 52.
Limited block 51 includes two position limit arms be arrangeding in parallel 511, and card key way 512 is arranged between two position limit arms 511,
Article two, the gap between position limit arm 511 is more than the width of card key way 512.The width of card key way 512 is more than the diameter of chain link and little
In the outer width of chain link, the length of card key way 512 is more than 1/2 that chain link is the widest.Between the maximum of block piece 52 and card key way 512 sidewall
Gap is more than or equal to the outer width of chain link.
The open end of card key way 512 passes through district 513 for what chain passed through to being formed between the end face of position limit arm 511, wears
More the width in district 513 is more than the width of card key way, and the width passing through district 513 is the width in the gap between two position limit arms 511
Degree.
Block piece 52 passes through district 513 and is plugged on position limit arm 511, and wherein a position limit arm 511 is provided with for inserting
Connecing the first spliced eye 5111 of block piece 52, another position limit arm 511 is provided with to be inserted for the second of grafting block piece 52 end
Connect hole 5112, there is the position limit arm 511 of the second spliced eye 5112 and be provided with block piece 52 is fixed on the locking on limited block 51
Mechanism 53.
The elastic component that lockable mechanism 53 includes the lockhole 531 through with the second spliced eye 5112, is arranged in lockhole 531
532 and tapered end 533, one end that block piece 52 is plugged in the second spliced eye 5112 is provided with grafting termination 521, grafting termination 521
Being provided with locked groove 5211, tapered end 533 is connected in locked groove 5211 under the elastic force effect of elastic component 532, makes block piece 52 fix
On limited block 51.The diameter of the second spliced eye 5112 is more than the diameter of described first spliced eye 5111, outside grafting termination 521
The circular diameter diameter more than described block piece 52 and the diameter more than described first spliced eye 5111.Block piece 52 is positioned at first and inserts
Connect the one end outside hole 5111 and be provided with operating portion 522, by pulling described operating portion 522 to make block piece 52 move axially, tapered end 533
Remove in locked groove 5211, make card key way 512 be in open mode.Elastic component 532 is spring, and tapered end 533 is iron shot.
When zero load needs to drag chain, rotate handwheel 37 and drive stop-nut 34 rotation to make stop-nut 34 away from rubbing
Pad 32, makes to produce between brake seat 31, ratchet 33 and friction plate 32 gap, and is snapped in by the keeper 374 on handwheel 37
In locating slot 382 on location wheel 38, handwheel 37 is made to be relatively fixed with location wheel 38 holding.Due to handwheel 37 and stop-nut
34 are fixed on major axis 21 the most relatively, can not turn round with adjustment wheel 36 and location wheel 38 under clutch torsion spring 35 twisting force, because of
This ensure that and produces gap all the time between stop-nut 34 and brake seat 31, friction plate 32 and ratchet 33.Now drag chain
During bar, major axis 21 drives brake seat 31, stop-nut 34, adjustment wheel 36, location wheel 38 and handwheel 37 together to rotate.
When needs loaded work piece, rotate backward handwheel 37 and drive stop-nut 34 to rotate, making stop-nut 34 compress
Friction plate 32, and being produced in locating slot 382 by keeper 374, makes handwheel 37 and the stop-nut 34 can be with major axis 21, location
Wheel 38 and adjustment wheel 36 produce relative rotation.Clutch torsion spring 35 by twisting force to stop-nut 34, makes braking spiral shell at this moment
Female 34 revolutions, so that the further pressing friction sheet 32 of stop-nut 34, it is ensured that brake is in braking operation all the time.Now
Backswing fixed handle 41, handle 41 drives stop-nut 34 together to rotate with major axis 21, major axis 21 drive chain hoist wheel 24 rotate from
And carry out lift heavy, owing to handle 41 is provided with commutation ratchet 42, make handle 41 can only drive in a direction when swinging back and forth
Stop-nut 34, produces relative rotation with stop-nut 34 during backswing.During handle 41 backswing, ratchet 39 and spine
Wheel 33 engagement, prevents ratchet 33 from rotating backward, so that the weight sling will not drop.
Claims (10)
1. a loop chain tightener, limits including frame (1), drive mechanism (2), operating mechanism (4), clutch (3) and tail ring
Mechanism processed (5), described drive mechanism (2) includes major axis (21), is arranged on the biography that frame (1) side is engaged with major axis (21) one end
Moving gear (22), it is set in the upper idler gear (23) engaged with travelling gear (22) of major axis (21) and is socketed in major axis (21)
The upper chain hoist wheel (24) being connected by spline with idler gear (23), described clutch (3) is arranged on another of frame (1)
Side the other end with major axis (21) are connected, it is characterised in that: described clutch (3) includes brake seat (31), ratchet
(33), stop-nut (34), handwheel (37), location are taken turns (38) and are arranged on the tune between stop-nut (34) and handwheel (37)
Whole taking turns (36) and clutch torsion spring (35), described brake seat (31) is socketed in that major axis (21) is upper and synchronous rotation, described spine
Wheel (33) is socketed on brake seat (31), and the both sides of described ratchet (33) are provided with friction plate (32)；The described wheel (36) that adjusts overlaps
Be connected on major axis (21) upper and with major axis (21) synchronous axial system, described clutch torsion spring (35) is arranged on stop-nut (34) and adjusts wheel
(36), between, the termination at its two ends is connected to stop-nut (34) and adjusts on wheel (36)；Described handwheel (37) is socketed in
Major axis (21) upper and with described stop-nut (4) synchronous axial system, described location wheel (38) and major axis (21) synchronous axial system and relative
Handwheel (37) rotates along major axis (21) axis, is provided with detent mechanism, described location between described handwheel (37) and location wheel (38)
Mechanism makes handwheel (37) and location wheel (38) keep relatively rotating or being relatively fixed.
A kind of loop chain tightener the most according to claim 2, it is characterised in that: one end of described stop-nut is provided with clamping
Arm (344), forms buckling groove (345) between adjacent two snap-arms (344), described stop-nut (34) passes through snap-arms
And buckling groove (345) and described handwheel (37) clamping (344).
A kind of loop chain tightener the most according to claim 1 and 2, it is characterised in that: the described wheel (36) that adjusts is near clutch
One end of torsion spring (35) is provided with stop part (361), and the termination of described clutch torsion spring (35) one end is fixed on described stop part (361)
On.
A kind of loop chain tightener the most according to claim 3, it is characterised in that: described location wheel (38) is socketed in handwheel
(37), in, the described wheel (36) that adjusts is connected on major axis (21) by spline with location wheel (38), and is fixed on length by nut
On axle (21).
A kind of loop chain tightener the most according to claim 4, it is characterised in that: described detent mechanism includes being arranged on location
Take turns the locating slot (382) on (38), the hole, location (372) being arranged on handwheel (37) and be arranged on determining in hole, location (372)
Position part (374) and spring (373), described keeper (374) moves under the elastic force effect of spring (373) in hole, location (372)
Dynamic so that it is to be pressed on that location wheel (38) is upper or in locating slot (382), make handwheel (37) and location wheel (38) keep relatively rotating or
It is relatively fixed.
A kind of loop chain tightener the most according to claim 5, it is characterised in that: described handwheel (37) is provided with positioning seat
(71), hole, described location (72) are arranged on positioning seat (71).
7. according to a kind of loop chain tightener described in claim 1 or 6, it is characterised in that: described tail ring limiting mechanism includes limit
Position block (51), chain end-rings is connected on described limited block (51), and described limited block (51) is provided with card key way (512), institute
State card key way (512) to be provided with and move to the opening in described card key way (512), and the opening of described card key way (512) for chain
Place is provided with the block piece (52) stopping chain removal card key way (512).
A kind of loop chain tightener the most according to claim 7, it is characterised in that: described block piece (52) is plugged on limited block
On, described limited block (51) is provided with the lockable mechanism (53) being fixed on limited block (51) by block piece (52), described locking
Mechanism (53) includes lockhole (531), be arranged in lockhole (531) elastic component (532) and tapered end (533), described block piece
(52) one end is provided with locked groove (521), and described tapered end (533) is connected to locked groove (521) under the elastic force effect of elastic component (532)
In, make block piece (52) be fixed on limited block (51).
9. according to a kind of loop chain tightener described in claim 1 or 8, it is characterised in that: described frame is split-type structural, bag
Including left frame (11) and right frame (12), described frame is provided with and merges, by left frame (11), the use formed with right frame (12)
In installing the sprocket wheel installation room of chain hoist wheel, the angle of the side end face of the upper surface of described frame and described frame be provided with for
Installing the installation portion risen to the bait, described installation portion includes the left installation portion (113) being arranged on described left frame (11), is arranged on institute
State the right installation portion (123) in right frame (12), and be arranged between described left installation portion (113) and right installation portion (123)
Baltimore groove.
A kind of loop chain tightener the most according to claim 9, it is characterised in that: described sprocket wheel installation room is unidirectional opening,
And opening direction is arranged down, the opening part of described sprocket wheel installation room is provided with guide block (114), and sprocket wheel is pacified by described guide block (114)
Dress room is divided into the guide chain groove (115) that two chains of formation are current, and described guide chain groove (115) is cross recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759331.2A CN106185678A (en) | 2016-08-30 | 2016-08-30 | A kind of loop chain tightener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759331.2A CN106185678A (en) | 2016-08-30 | 2016-08-30 | A kind of loop chain tightener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106185678A true CN106185678A (en) | 2016-12-07 |
Family
ID=58089098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610759331.2A Pending CN106185678A (en) | 2016-08-30 | 2016-08-30 | A kind of loop chain tightener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106185678A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512388A (en) * | 2016-12-19 | 2017-03-22 | 浙江宣和电器有限公司 | Mahjong machine and slope tile sending device thereof |
| CN106512389A (en) * | 2016-12-19 | 2017-03-22 | 浙江宣和电器有限公司 | Mahjong machine and mahjong tile serving component thereof |
| CN110697602A (en) * | 2019-11-25 | 2020-01-17 | 肖鑫 | Reel lifting mechanism and lifting device and method provided with same |
| CN112623983A (en) * | 2021-01-06 | 2021-04-09 | 浙江双鸟机械有限公司 | Loop chain traction and lifting machine of electric direct-drive brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512388A (en) * | 2016-12-19 | 2017-03-22 | 浙江宣和电器有限公司 | Mahjong machine and slope tile sending device thereof |
| CN106512389A (en) * | 2016-12-19 | 2017-03-22 | 浙江宣和电器有限公司 | Mahjong machine and mahjong tile serving component thereof |
| CN106512388B (en) * | 2016-12-19 | 2023-09-12 | 浙江宣和机电科技有限公司 | Mahjong machine and slope tile discharging device thereof |
| CN106512389B (en) * | 2016-12-19 | 2023-09-12 | 浙江宣和机电科技有限公司 | Mahjong machine and tile feeding assembly thereof |
| CN110697602A (en) * | 2019-11-25 | 2020-01-17 | 肖鑫 | Reel lifting mechanism and lifting device and method provided with same |
| CN112623983A (en) * | 2021-01-06 | 2021-04-09 | 浙江双鸟机械有限公司 | Loop chain traction and lifting machine of electric direct-drive brake |
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Application publication date: 20161207 |