CN101249931B

CN101249931B - Light aluminum alloy cable chain tightener

Info

Publication number: CN101249931B
Application number: CN2007100685102A
Authority: CN
Inventors: 范丽平
Original assignee: HANGZHOU WULIN MACHINE CO Ltd
Current assignee: Zhejiang Guanlin Machinery Inc
Priority date: 2007-05-01
Filing date: 2007-05-01
Publication date: 2011-11-09
Anticipated expiration: 2027-05-01
Also published as: CN101249931A

Abstract

The invention relates to a light-small type hand hoisting traction machine, and the body of the machine comprises an external wall panel, a frame, a ratchet casing and a leading chain block, wherein the external wall panel and the ratchet casing are arranged on two sides of the frame separately, the leading chain block is arranged at the bottom of the frame, a driving mechanism is a double-geared driving mechanism, wherein a spline gear is arranged on the right side of a hoisting chain wheel, a major axis gear passes a center hole of the hoisting chain wheel and gear side of the major axis gear is rightward, a middle gear is arranged in a hole on the right side of the frame and engaged with the major axis gear and the spline gear, a brake of a dragging chain is arranged on the left side of the major axis gear via a spline, wherein friction disks and a ratchet are sleeved on the brake seat, two friction disks are arranged on two sides of the ratchet, a clutch spring is arranged between the brake seat and arresting nut, the ratchet is engaged with a pawl which is fixed on the frame via a pawl pin, in a operating mechanism, a handle and a wrench are in split clamping structure, in a tail ring limiting device, a chain through hole is arranged in the center of a positioning block, wherein a top lock is arranged at the end portion of one side of the block body, the top lock can be crewed into or crewed out from the chain through hole, and a latch groove of a collar bolt at the end of the chain is arranged at the lower end of the end portion of one side of the block body.

Description

Light aluminum alloy cable chain tightener

Technical field

The present invention relates to a kind ofly be used for a kind of small-sized manual lifting trailer-type machine, be mainly used in lifting, traction and tensioning operation, belong to the loop chain turnbuckle and make the field.

Background technology

Publication number CN1740082A, title " light aluminium alloy chain block ", this Lever Blocks comprises matched main body mechanism, free wrench mechanism and driven sprocket mechanism; Main body mechanism comprises main body cover and is screwed onto the main body cover plate of main body cover bottom that hook connects on main body cover top; The gear system and the sprocket transmission device of the built-in anti-reverse of described main body cover, the opening of two suspension hooks are equipped with the Carcel board component that prevents that chain from taking off outward; Ratchet handle assembly in the described free wrench mechanism connects gear wheel shaft.Described gear system comprises by gear wheel shaft and round washer and outer-hexagonal nut are equipped and forms and be positioned at the main body cover internal upper part; Described sprocket transmission device comprises by sprocket spindle and big gear wheel, head sprocket packing ring, retaining nut and retaining nut pin are equipped and forms and be positioned at the main body cover bottom.Described free wrench mechanism also comprises handwheel, handwheel is equipped mutually with the ratchet handle assembly through two socket head cap screws, the ratchet handle assembly connects described gear wheel shaft through matched handle clavula wheel, the little ratchet of handle still disposes and controls, clockwise moving ratchet, and is assemblied on the gear wheel shaft that stretches out outside the described main body cover; Be fitted with front friction plate and back friction lining before and after the large ratchet respectively, front friction plate is equipped mutually with anti-lock rubber ring, and back friction lining is equipped mutually with friction wheel, and is positioned at described main body cover internal upper part; Described friction wheel, back friction lining, large ratchet, front friction plate, anti-lock rubber ring, friction disc, the little ratchet of handle, ratchet cover plate, trig loop, the handwheel order is equipped mutually and all cover be fitted in and constitute the integral body of string dress mutually on the gear wheel shaft.Described flower wheel mechanism comprises sprocket housing, is provided with equipped mutually sprocket shaft and driven sprocket in the sprocket wheel housing, and the driven sprocket endoporus is equipped with needle bearing; The work chain places between head sprocket and the driven sprocket; Following suspension hook and copper sheathing and hook nut are connected the below in the sprocket wheel housing; The sprocket wheel cap is fixed on the upper end of sprocket wheel housing with socket bolt, and sprocket housing covers and has cross chain cylindrical void, and the work chain cunning that is positioned at the sprocket wheel housing fits on the driven sprocket wheel track.Its weak point: the one, body adopts open type, and whole drg exposes, and in a single day touches the safety misadventure that brake failure may appear in ratchet during not only water proof and dust proof poor performance, and operation; The 2nd, adopt the one-level gear transmission, transmitting ratio is little, makes that the hoisting chain line number of product is many, occurs twining chain and chain flop phenomenon easily; The 3rd, drag the mode that chain mechanism adopts ratchet and ratchet to get loose, the operation of this mode must be that a hand will firmly be pinned ratchet, and ratchet and ratchet are broken away from, the another hand could spur chain, and operation inconvenience is especially when aloft work, not only inconvenience, and danger coefficient height; The 4th, spanner and mechanism on the operating mechanism are integrated, and long spanner makes product carry very inconvenience, and especially influence is bigger when aloft work is climbed; The 5th, the hook in the erecting by overhang connects with the employing nut that is connected of body, and fixes with round pin, complex structure, and mounting or dismounting inconvenience is unfavorable for maintenance, and following suspension hook and hook housing adopt the nut welding fixing, can't dismantle, maintainability is poor; The 6th, tail ring restraint device is fixed on the tail end of pine end chain, can't adjust the control position of tail ring restraint device according to the position of weight, when the pine end of chain is longer, if cause weight when tenesmus in case brake failure occurs, tail ring restraint device can clash into body fiercely, causes part impaired; The 7th, lead chain spare and adopt aluminum alloy materials, when chain is draged in zero load chain with lead chain spare and can produce strike note, not only influence operation and contaminated environment.

Summary of the invention

Design goal: avoid the weak point in the background technology, designing a kind of one is not only to have the waterproof and dustproof function, and the body of safety of operation; The 2nd, transmission device, not only transmitting ratio is big, and can reduce the hoisting chain line number of product and not be prone to and twine the upset of chain and chain; The 3rd, drag that hand of chain mechanism just can arbitrarily be operated and simple to operation, be particularly useful for aloft work; The 4th, the spanner on the operating mechanism is with mechanism and separates interface arrangment, convenient and safe carrying, and only need set up spanner during work and can operate; The 5th, suspension hook is bearing pin with body and is connected in the erecting by overhang, and not only mounting or dismounting are simple, and is convenient to safeguard, and suspension hook is split with hook housing and flexibly connects down, convenient disassembly not only, and also hoisting chain is difficult for reversing when working; The 6th, tail ring restraint device can be adjusted the control position of tail ring restraint device according to the position of weight, guarantee that turnbuckle is in case occur under the situation that brake failure causes weight tenesmus, can block body immediately, the parts that caused of avoiding clashing are impaired, the more important thing is the personal safety of having guaranteed operating personal.

Design plan: in order to realize above-mentioned design goal.1, body adopts full-closed structure, is one of feature of the present invention.The purpose of doing like this is: body is transmission device in the turnbuckle, stop mechanism, drag the supporting body of chain mechanism, body is designed to full-enclosed structure, promptly realize being closed of all parts in the body, not only had the function of waterproof and dustproof, and can guarantee the safety used.2, transmission device is designed to the secondary gear transmission device, is two of feature of the present invention.The purpose of doing like this is: adopt the secondary gear transmission, transmitting ratio is big, has reduced the hoisting chain line number of product, in use is not prone to and twines chain and chain flop phenomenon, and is both easy and simple to handle, guaranteed the safety of operation again.3, draging chain mechanism and adopt the design of braking the mode that gets loose, is three of feature of the present invention.The purpose of doing like this is: after adopting the drg that gets loose, a hand just can arbitrarily be operated, and makes that operation is more simple and convenient, is particularly useful for aloft work, and has eliminated potential safety hazard.4, the design that separates with mechanism of the spanner on the operating mechanism is four of a feature of the present invention.The purpose of doing like this is: spanner separates with mechanism, miniaturization and easy that instrument carries have been realized, particularly for aloft work, because instrument is small and exquisite, not only convenient the climbing carried, the more important thing is and improved its safety of carrying widely, only need set up spanner during work and can operate.5, tail ring restraint device is designed to adjustable structure, is five of feature of the present invention.The purpose of doing like this is: the control position that not only can adjust tail ring restraint device according to the position of weight, make tail ring restraint device near body, and cause weight when tenesmus in case brake failure occurs, tail ring restraint device can block body immediately, can not cause bump fiercely, can not make parts impaired.The more important thing is: guaranteed the safety in its use.6, leading the chain piece and adopt non-metallic material to make, is six of feature of the present invention.The purpose of doing like this is: not only guaranteed its intensity, and when chain is draged in zero load with lead chain spare and can not produce sound, help environmental protection.

Technical scheme: light aluminum alloy cable chain tightener, it comprises body, transmission device, drag chain mechanism, operating mechanism, hang connecting device, tail ring restraint device and lead chain spare: (1) described body is by Side fascia (1), frame (7), ratchet casing (18) and lead chain piece (26) and constitute, Side fascia (1) and ratchet casing (18) lay respectively at frame (7) both sides, lead chain piece (26) and are positioned at frame (7) bottom; (2) described transmission device is the secondary gear transmission device, its spline gear (5) is positioned at the right side of chain hoist wheel (6), major axis gear (3) passes the centre hole of chain hoist wheel (6) and the gear end on the major axis gear (3) towards the right side, and center tooth wheels (2) are contained in the hole on frame (7) right side and major axis and spline gear (5) are meshed with it; (3) the described drg seat (10) that drags in the chain mechanism is contained in the left side of major axis gear (3) by spline, friction lining (11), ratchet (12) sky are enclosed within on the drg seat (10), two friction linings (11) divide the both sides that are in ratchet (12), clutch spring (13) is placed between drg seat (10) and the stop-off nut (44), and ratchet (12) is meshed with the ratchet (16) that is fixed on the frame (7) by detent pin (15); (4) handle (20) in the described operating mechanism is the split interface arrangment with spanner (25); (5) limiting stopper (29) the block center in the described tail ring restraint device is the chain via, the end of one side of block is provided with ejector pin (30) and can screws in or withdraw from the chain via of block, and the lower end of block one side end is provided with the locked with bolts groove of chain end-rings.

The present invention compares with background technology, and the one, the design of totally-enclosed body not only has the characteristics of waterproof and dustproof, and avoided in the operation having guaranteed safe in utilization owing to touching the safety misadventure that brake failure that ratchet causes causes; The 2nd, adopt the secondary gear transmission, not only transmitting ratio is big, and has reduced the hoisting chain line number of product, has avoided twining the appearance of chain and chain flop phenomenon; The 3rd, drag the mode that chain mechanism adopts braking to get loose, not only can arbitrarily operate, and high-altitude application is simple, convenient, safety; The 4th, the spanner on the operating mechanism separates with mechanism, not only be convenient to aloft work and climb, and safety is good; The 5th, tail ring restraint device is designed to adjustable structure, has solved that background technology exists because during weight tenesmus that brake failure caused, tail ring restraint device is impaired to the part that clashing of body caused, and to harm that personal safety caused; The 6th, lead the chain piece and adopt non-metallic material, not only reduce noise, and alleviated complete machine weight.

Description of drawings

Fig. 1 is the sectional structure scheme drawing of light aluminum alloy cable chain tightener.

Fig. 2 is the sectional structure scheme drawing of A-A among Fig. 1.

Fig. 3 is the mounting structure scheme drawing of handle.

Fig. 4 rises to the bait and frame bonded assembly master TV structure scheme drawing.

Fig. 5 is Fig. 4 side-looking semi-sictional view structural representation.

Fig. 6 is the structural representation of tail ring restraint device.

Fig. 7 is the blast structural representation of light aluminum alloy cable chain tightener.

The specific embodiment

Embodiment 1: with reference to accompanying drawing 1～7.Light aluminum alloy cable chain tightener, it comprises body, transmission device, drags chain mechanism, operating mechanism, hang connecting device, tail ring restraint device and lead chain spare.Described body is by Side fascia 1, frame 7, ratchet casing 18 and lead chain piece 26 and constitute, Side fascia 1 and ratchet casing 18 with reference to accompanying

drawing

1 and 7 by the prior art processing and fabricating and lay respectively at frame 7 both sides, frame 7 is pressed prior art die cast or moulding by casting with reference to accompanying

drawing

1 and 7, lead chain piece 26 with reference to accompanying

drawing

1 and 7 by prior art injection moulding (the chain piece 26 of leading of leading chain spare adopts engineering plastics or Reinforced Nylon to make) moulding and be positioned at frame 7 bottoms, frame 7 tops have Baltimore groove (designing when die casting or casting) in forming mould, two walls of groove have in the rise to the bait axis hole and 32 Baltimore grooves that insert on the frame 7 of rising to the bait, the axle 36 of rising to the bait passes across the axis hole of rising to the bait of 32 bottoms of rising to the bait, and its two ends of rising to the bait axle 36 are positioned at the axis hole of rising to the bait of Baltimore groove two walls.The aperture of the bearing saddle bore 45 in frame 7 die cavities is greater than chain hoist wheel 6 cylindricals, and bearing seat 8 is installed on the bearing saddle bore 45, and purpose is that manufacturing process is simple, and cost is low.

Described transmission device is the secondary gear transmission device, its spline gear 5 is positioned at the right side of chain hoist wheel 6, major axis gear 3 passes the centre hole of chain hoist wheel 6 and the gear end on the major axis gear 3 towards the right side, center tooth wheels 2 are contained in the hole on frame 7 right sides and major axis and spline gear 5 are meshed with it, and the processing of secondary gear transmission device gets final product with installing to install with reference to accompanying

drawing

1 and 7 processing (or outsourcing).

Described drag drg seat 10 in the chain mechanism with reference to accompanying

drawing

1 and 7 by the prior art processing and fabricating and be contained in the left side of major axis gear 3 by spline, friction lining 11, ratchet 12 are enclosed within on the drg seat 10 by prior art processing and fabricating or outsourcing or external coordination and sky, two friction linings were in the both sides of ratchet 12 in 11 minutes, and ratchet 12 is meshed with the ratchet 16 that is fixed on the frame 7 by detent pin 15.

Handle 20 handle cores 48 in the described operating mechanism laterally have hole slot, and hole slot is built-in with stage clip 46, and tapered end 47 is positioned on the stage clip, and tapered end spacing hole and the tapered end in the handle core that sleeve 49 is enclosed within on the handle core 48 and on the sleeve 49 form the elastic telescopic structure.

Limiting stopper 29 block centers in the described tail ring restraint device are the chain via and adopt prior art die cast or moulding by casting, the end of one side of block is provided with ejector pin 30 and can screws in or withdraw from the chain via of block, purpose locks chain by ejector pin, the lower end of block one side end is provided with the locked with bolts groove of chain end-rings, purpose is locked into one chain end-rings and limiting stopper, guarantees safe in utilization.

1～7 the invention will be further described in conjunction with the accompanying drawings.

Bearing 42 is fitted in the right ports of frame 7, and the chain hoist wheel 6 of packing into then then is fitted in a bearing seat 8 that bearing 42 is housed in the left hole of frame 7 and adopts screw 9 fixing, and chain hoist wheel 6 can freely be rotated.Spline gear 5 is contained in the right side of chain hoist wheel 6 by spline, major axis gear 3 is passed the centre hole of chain hoist wheel 6, make gear end on the major axis towards the right side, then one group of intermediate gear 2 is contained in the aperture on frame 7 right sides, and major axis gear 3 and spline gear 5 are meshed with it, cover Side fascia 1, the screw 19 of screwing on is fixed.

Drg seat 10 is contained in the left side of major axis by spline.Rub sassafras sheet 11, ratchet 12 skies is enclosed within on the drg seat 10, two sassafras sheets that rub were in the both sides of ratchet 12 in 11 minutes, clutch spring 13 is placed between drg seat 10 and the stop-off nut 44, ratchet 12 is meshed with the ratchet 16 that is fixed on the frame 7 by ratchet spring 14, detent pin 15, and back-up ring 17 is positioned at ratchet 16 1 sides.In the middle of the 32 insertion frames 7 of rising to the bait, then the axle 36 of rising to the bait is passed across frame 7, fix and rise to the bait 32.

The handle 20 that has ratchet casing 18 and stop-off nut 44, commutation ratchet 43 is fixed on the stop-off nut 44 by spline, handle 20 is screwed on the left side screw thread of major axis by stop-off nut 44, and makes the ratchet casing 18 on the handle 20 cover whole frame 7, and the screw 19 of screwing on is then fixed.Tab 22 is contained on the left end spline of major axis, and this part can be adjusted the degree that gets loose of stop-off nut 44.Handwheel 23 is screwed on the handle 20 by screw 24, can lock or loosen the brake nut 44 by rotating handwheel 23.

Lead chain piece 26 and pack into, and fix with screw 27 along the oblong aperture of frame 7 lower ends.Hoisting chain 28 is packed into by the cross bore of leading on the chain piece 26, rotates handwheel 23, because the guide chain groove in the frame 7 makes hoisting chain to be contained on the chain hoist wheel 6 along guide chain groove, and passes another cross bore of leading on the chain piece.

Following hook 41 is contained on the load end (facing to an end of rising to the bait) of hoisting chain 28.Following hook housing 37 is two slit bamboo or chopped wood structures, chamber, its underpart be built-in with semicircle packing ring 40, top have pin-and-hole and under revoke 38 and be positioned at pin-and-hole, following hook housing 38 adopts screws 39 to be connected as a single entity.Carcel plate 33 by dual spring 34, screw 35 be installed in rise to the bait 32 and the protruding wall of following hook 41 on and with mouth of hook elasticity locking.Limiting stopper 29 is contained in the pine end (departing from an end of rising to the bait) of hoisting chain 28, and ejector pin 30 is screwed in.Hoisting chain 28 pine end end rings are fixed on the limiting stopper 29 by bolt 31.Spanner 25 is contained on the handle 20, the circular hole that tapered end 47 is aimed on the spanner 25, and jump out and fix.Commutation ratchet 21 is housed on the handle 20.

What need understand is: though the foregoing description is to the present invention's detailed explanation of contrasting; but these explanations; just to simple declaration of the present invention; rather than limitation of the present invention; any innovation and creation that do not exceed in the connotation of the present invention all fall in the protection domain of the present utility model.

Claims

1. light aluminum alloy cable chain tightener, it comprises body, transmission device, drags chain mechanism, operating mechanism, hang connecting device, tail ring restraint device and lead chain spare, it is characterized in that:

I, described body is by Side fascia (1), frame (7), ratchet casing (18) and lead chain piece (26) and constitute, Side fascia (1) and ratchet casing (18) lay respectively at frame (7) both sides, lead chain piece (26) and be positioned at frame (7) bottom, frame (7) top has Baltimore groove, two walls of Baltimore groove have rise to the bait axis hole and rise to the bait (32) and insert in the Baltimore groove on the frames (7), the axle (36) of rising to the bait passes across the axis hole of rising to the bait of (32) bottom of rising to the bait, its two ends of rising to the bait axle (36) are positioned at the axis hole of rising to the bait of Baltimore groove two walls, the aperture of the bearing saddle bore (45) in frame (7) die cavity is greater than chain hoist wheel (6) cylindrical, and bearing seat (8) is installed on the bearing saddle bore (45);

II, described transmission device are the secondary gear transmission device, its spline gear (5) is positioned at the right side of chain hoist wheel (6), major axis gear (3) passes the centre hole of chain hoist wheel (6) and the gear end on the major axis gear (3) towards the right side, and center tooth wheels (2) are contained in the hole on frame (7) right side and major axis gear (3) and spline gear (5) are meshed with it;

III, the described drg seat (10) that drags in the chain mechanism are contained in the left side of major axis gear (3) by spline, friction lining (11), ratchet (12) sky are enclosed within on the drg seat (10), two friction linings (11) divide the both sides that are in ratchet (12), clutch spring (13) is placed between drg seat (10) and the stop-off nut (44), and ratchet (12) is meshed with the ratchet (16) that is fixed on the frame (7) by detent pin (15);

Handle (20) in IV, the described operating mechanism is the split interface arrangment with spanner (25), the handle core (48) of handle (20) laterally has hole slot, hole slot is built-in with stage clip (46), tapered end (47) is positioned on the stage clip, and sleeve (49) is enclosed within on the handle core (48) and tapered end spacing hole on the sleeve and the formation of the tapered end in handle core elastic telescopic structure;

Limiting stopper (29) block center in V, the described tail ring restraint device is the chain via, the end of block one side is provided with ejector pin (30), and this ejector pin (30) can screw in or withdraw from the chain via of block, and the lower end of the end of block one side is provided with the locked with bolts groove of chain end-rings.

2. light aluminum alloy cable chain tightener according to claim 1, it is characterized in that: the following hook housing of hanging in the connecting device (37) is two slit bamboo or chopped wood die cavities extension shell, following hook (41) connecting portion blocks groove structure in the form of a ring, and being positioned at down, the two halves round washer (40) of hook housing (37) die cavity extension shell is connected to down the ring-type card groove of hook (41) and hook (41) and following hook housing (37) flexible connection down.

3. light aluminum alloy cable chain tightener according to claim 1 is characterized in that: the described chain piece (26) of leading adopts non-metallic material to make.