CN1095356A

CN1095356A - Hoisting device

Info

Publication number: CN1095356A
Application number: CN 94102021
Authority: CN
Inventors: 金泽光雄
Original assignee: Kanazawa Manufacturing Co Ltd
Current assignee: Kanazawa Manufacturing Co Ltd
Priority date: 1993-03-09
Filing date: 1994-03-02
Publication date: 1994-11-23
Anticipated expiration: 2014-03-02
Also published as: CN1048693C; JPH0667475U; WO1995000433A1; JP2547842Y2

Abstract

A kind of hoisting device, comprise hanging wheel that hangs a chain sling and the manipulation sprocket wheel that has hung an annular maneuvering chain, these sprocket wheels are rotatably supported on the bearing support, one with handle driving worm screw that sprocket wheel links to each other and be meshed with the passive worm gear of hanging wheel global formation, rotate pilot wheel with maneuvering chain, hanging wheel is rotated, and hanging wheel is adjusted with respect to the bearing position of chain sling in the object of slinging chain sling being applied a pulling force.Limited the rotation of the worm gear that causes by the rotation load by worm screw.

Description

Hoisting device

The present invention relates to a kind of hoisting device, this device is used for factory, warehouse, the hoisting operation of the object of harbour handling, civil engineering etc.More particularly, relate to a kind of bogie type hoisting device, can easily carry out the level lifting of weight overbalance object.

In the past, many hoisting devices that are used to lift by crane object had been advised.Fig. 8 has shown the example of the common hoisting device of the simplest equidimension steel cable of a kind of use, in this hoisting device, according to the center-of-gravity position with overbalance weight article 1, gives a left side and

right steel cable

2 and 3 of preparing to have predetermined length earlier.This hoisting device is simple in structure, but can not have the lifting of the variety classes article 1 of different size and center-of-gravity position, and if the size of

steel cable

2 and 3 wrong, its object 1 of just can not on even keel slinging.

Fig. 9 (a) is to 9(c) shown and the example of a common balanced type hoisting device used wheel 5 by support 4 and chain 6 rotatably supports.Object 1 is sling by hoisting device, usually the center-of-gravity position of weight overbalance article is difficult to determine, so that shown in Fig. 9 (c), adopt a kind of method, after the object 1 of slinging a little with the device of hoisting crane or class, determine the degree of dip of object 1, then object 1 is put down once more, shown in Fig. 9 (b), and loosen chain 6 to adjust the position of wheel 5.Slinging of object 1 put down and adjusted and will repeat for several times.

After having determined that object 1 energy level is sling, shown in Fig. 9 (c), object 1 is really sling.In this way, must repeat slinging and putting down many times of object 1, to adjust the position of wheel 5, so work efficiency is lower.And, chain 6 is being loosened with after adjusting wheel 5 positions, when a hoisting crane or allied equipment will take turns 5 when slinging, depart from sometimes the position of wheel 5, be applied on the chain 6 until pulling force, so, be difficult to reach the height level, so, the workman that this need of work is skilled.

In addition, need directly catch chain 6 with hand, support 4 etc., the position that pushes away or draw their adjustment wheel 5, this needs many work, so poor practicability.And under the situation that the non-equilibrium object of greater weight is arranged, chain 6, support 4 etc. are also very heavy.So such hoisting device is not suitable for the lifting of the bigger non-equilibrium object of weight.

In addition, when object 1 was sling, object 1 was swung or is contacted with the surrounding buildings thing, so there is wheel 5 to rotate and chain 6 unbalanced danger.

Advised a kind of hoisting device among Figure 10, a stop pin 9 can fix wheel 5 with respect to support 4 from the pin hole 8 that the pin hole 7 on the support 4 inserts on the wheel 5.Under the situation of this hoisting device, after wheel 5 position adjustment, use stop pin 9 will take turns 5 and be fixed on the support 4 with respect to object 1, thus, can avoid aforementioned unbalanced danger.Yet the minimizing of the spacing of wheel 5 pin hole 8 has a restriction, so, fix by stop pin if take turns 5, take turns 5 positions that can how much depart from directly over object 1 center of gravity, so, can not keep very level of object 1.

And under the situation of large-scale non-equilibrium object, the length of chain 6 is longer, and the position of wheel is higher, so, after adjusting wheel 5 positions, be difficult to stop pin 9 is inserted pin hole 7 and 8.And, with Fig. 9 hang and install the same, the position of adjusting wheel 5 needs workshop-trained man and arduous labor, and work often gets into trouble.

Figure 11 has shown the brush of a common adjusting type hoisting device, has used a card handle 10 and a steel cable 11.In the situation of this hoisting device, steel cable 11 is walked around card handle 10, is in the part of reference number 11a.When steel cable 11 was loosened, the ring of walking around card handle 10 winding part 11a became bigger.So, the adjustable positions of card handle 10.On the other hand, when card handle 10 was sling by a hoisting crane or allied equipment, the winding part of steel cable 11 made card handle 10 become tight, so, block the position of handle 10 and fix with respect to steel cable.Yet in this hoisting device, the adjustment of the position of card handle 10 must be carried out under the situation that steel cable 11 unclamps, so, must carry out repeatedly slinging and putting down of object, and adjust, so adjusting work needs cooresponding program and skilled workman.Adjust the position of card handle 10, must directly catch card handle 10 and steel cable 11 etc., and push away or draw with hand, thus need a lot of labours, and be unsuitable for the heavy overbalance object of slinging.

As mentioned above, in all common adjusting type hoisting devices, can not carry out the adjustment of hanging object bevelled, both, bearing set (wheel, card handle etc.) adjustment of position, and the state of the object that keeps simultaneously slinging, it must carry out under the state that unclamps suspender (steel cable, chain etc.), so, need sling and put down object many times.This adjusting work needs many programs and workshop-trained man.And, in order to adjust the position of bearing set, must directly catch bearing set and suspender etc., and carry out push-and-pull with hand, thus need many work, and be unsuitable for the lifting of heavier overbalance object.

So, the purpose of this invention is to provide a kind of hoisting device, it can carry out adjusting work fast, and need not workshop-trained man and hard working, even under non-equilibrium object situation, also can adjust the object levelness, unbalanced danger when in addition, also not having the lifting state.

For addressing the above problem, crane of the present invention is characterised in that: the crane wheel of a suspension suspender of a bearing support rotatably support and a hand wheel that hangs annular operation rope; A driving gear that rotates simultaneously with hand wheel and a ring gear that rotates simultaneously with the crane wheel are meshed; Driving gear and ring gear have the ring gear that turns to that profile of tooth can be transmitted driving gear, and limit because the rotation of the ring gear that the rotation load causes by driving gear.

Use the hoisting device lifting object of said structure, the suspender two ends that are suspended on the crane wheel are connected in object, and a hoisting crane or the allied equipment bearing support of slinging applies tension force to suspender, with this object of slinging a little.When object tilts with this state, in the object of slinging, handle the annular bracing wire that is suspended on the hand wheel, hand wheel is rotated.Like this, driving gear rotates with hand wheel, and by ring gear hanging wheel is rotated, so, send suspender in its rotation direction in moving hanging to walk around.When hanging wheel rotates in this manner when object becomes level, thing is further sling.

In this way, the annular bracing wire that is suspended on the pilot wheel by manipulation rotates pilot wheel, when suspender is applied pulling force, can adjust the bearing position of hanging wheel with respect to suspender, so it does not need to rise and put down object many times, and after adjusting, the hanging wheel position can not departed from.So it can adjust the work of hanging wheel position, and need not workshop-trained man.

And, can carry out the position adjusting work of hanging wheel by being suspended on annular bracing wire on the pilot wheel, so, the work of its position can easily be adjusted.

In addition, used driving gear and ring gear,, both made, also can easily carry out adjustment such as levelness for heavy overbalance object so the power that can reduce by the value by two gear reduction ratios is carried out the position adjusting work.

In addition, when contacting when the object swing of lifting state or with the surrounding buildings thing, rotate load and be applied on the hanging wheel, but owing to rotate the rotation energy of the ring gear that load causes and limit by driving gear, so do not exist the hanging wheel position to depart from and lose the danger of weight of object balance with respect to suspender.

Below by accompanying drawing one embodiment of the present of invention are described.

Fig. 1 is the cutaway view of first embodiment of the invention hoisting device along Fig. 2 A-A line.

Fig. 2 is that crane shown in Figure 1 is along B-B line cutaway view.

Fig. 3 (a) and 3(b) shown the using method of the first embodiment hoisting device.

Fig. 4 is the cutaway view of second embodiment of the invention hoisting device along Fig. 5 C-C line.

Fig. 5 be among Fig. 4 crane along the cutaway view of D-D line.

Fig. 6 is the constructed profile of third embodiment of the invention hoisting device.

Fig. 7 has shown fourth embodiment of the invention, and wherein, Fig. 7 (a) is that hoisting device is along E-E line cutaway view among Fig. 7 (b); Fig. 7 (b) is the cutaway view along F-F line among Fig. 7 (a).

Fig. 8 has shown a common hoisting device, has used equidimension steel cable and its using method.

Fig. 9 (a), 9(b) and 9(c) shown common adjusting type hoisting device and its using method.

Figure 10 is the respective view with common adjusting type hoisting device of stop pin.

Figure 11 has shown another common adjusting type hoisting device and its using method.

Fig. 1 and Fig. 2 have shown first embodiment of hoisting device of the present invention, and Fig. 3 has schematically shown the using method of this hoisting device.

At first referring to Fig. 1 and Fig. 2, hoisting device 20 has bearing support 21.

Rotating shaft

24 and 25 by separately is rotatably supported on the support 21 as the sprocket wheel 22 of hanging wheel with as the sprocket wheel 23 of pilot

wheel.Rotating shaft

24 and 25 is rotatably supported in respectively on the support 21 by the bearing (not shown), and

sprocket wheel

22 and 23 is separately fixed on rotating

shaft

24 and 25.

Chain 26 as suspender is suspended on the sprocket wheel 22, is suspended on the sprocket wheel 23 as the endless chain 27 of annular maneuvering chain.Catch on hand body 28(referring to Fig. 3 by joint) hook 29 be connected to chain 26 two ends.

The worm screw 30 of rotating with chain 23 as driving gear is fixed on the axle 25, and worm gear 31 and sprocket wheel 22 monolithic moldings as ring gear are positioned at sprocket wheel 22 both sides that are fixed on axle 24.Worm and worm wheel 31 are given to worm gear 31 with the rotation of worm screw 30, and they have known tooth form, and can be by worm screw 30 restrictions by rotating worm gear 31 rotations that load causes.

Clearly visible from Fig. 1 and Fig. 2, the pivot center of worm gear 31 is in the same axis identical with sprocket wheel 22 pivots center, and worm screw 30 pivots center are perpendicular to worm gear 31 pivots center, and sprocket wheel 23 pivots center are in the same axis identical with worm screw 30 pivots center.A junc-ring 32 that catches on hoisting crane hook 33 by joint is connected in bearing support 21 tops.Best, ring 32 is arranged in as directly over the sprocket wheel 22 of hanging wheel.

Below, the using method of hoisting device 20 is described with reference to Fig. 3.

Use hoisting device 20 object 28 of slinging, shown in Fig. 3 (a), be suspended on that chain 26 two ends on the sprocket wheel 22 are connected in 28, one hoisting cranes of object or the allied equipment (not shown) is sling bearing support 21, know at chain to apply pulling force on 26, object 28 is only lifted a little.When object 28 tilts with this state, handle the endless chain 27 that is suspended on the sprocket wheel 23, sprocket wheel 23 is rotated.Like this, worm screw 30 and sprocket wheel 23 unitary rotation, and sprocket wheel 22 is rotated by worm gear 31, so when sending chain 26 with its rotation direction, sprocket wheel 22 rotates.In this way, shown in Fig. 3 (b), when sprocket wheel 22 rotates when object 28 becomes level, object 28 is further risen.

In this way, the rotating sprocket 23 by operation endless chain 27 is when applying pulling force to chain 26, the bearing position of sprocket wheel 22 relative chains 26 can be adjusted, so, do not need to rise and put down object 28 many times, and after adjustment was arranged, the position of sprocket wheel 22 is deflection no longer.

So, do not need skilled workman just can adjust the work of sprocket wheel 22 positions, both, adjusted the work of object 28 attitudes.And, because just can carry out the adjustment of sprocket wheel 22 positions, be in high position so both made at sprocket wheel 22 by handling endless chain 27, also can easily adjust the work of its position.

In addition, worm screw 30 and worm gear 31 have such tooth form, can limit the rotation of the worm gear 31 that causes owing to the rotation load by worm screw 30, and have sizable reduction ratio.So, can use the power that reduces by deceleration ratio to carry out the position adjusting work, and both make for the overbalance object that large-size and weight are arranged, also can easily carry out the adjustment of levelness etc.

In addition, when contacting when object 28 swings of the state of slinging or with the surrounding buildings thing, apply one at sprocket wheel 22 and rotated load, but worm screw 30 can be limited the rotation of the worm gear 31 that is caused by the rotation load, so, do not exist the position of sprocket wheel 22 to depart from and object 28 loses the danger of weight balancing with respect to chain 26.

In the above-described embodiments, be formed at sprocket wheel 22 both sides as hanging wheel as the worm gear 31 of ring gear, so, the active flank between worm screw 30 and the worm gear 31 can be strengthened, and mechanical strength can be increased.

Fig. 4 to Fig. 7 has shown the present invention second to the 4th embodiment.In these figure, the parts identical with previous embodiment are marked with identical reference number.

Fig. 4 and Fig. 5 have shown second embodiment of hoisting device 20 of the present invention.The crane 20 of second embodiment and the first embodiment difference are: hanging wheel is a steel cable roller 42, and suspender is the steel cable 46 on the steel cable roller 42.The remainder of this structure is identical with first embodiment.And, in this embodiment, the steel cable 46 as suspender is being applied under the state of pulling force, when rotating, steel cable roller 42 can move.

Fig. 6 has shown the 3rd embodiment of hoisting device 20 of the present invention.In this embodiment, be formed separately as the sprocket wheel 22 of hanging wheel with as the worm gear 31 of ring gear, sprocket wheel 22 and worm gear 31 are fixed in the rotating shaft 24 and are spaced from each other.Worm screw 30 is fixed in rotating shaft 25 with worm gear 31 engagements, pilot wheel and corresponding sprocket wheel 23, so, be suspended on endless chain 27 on the sprocket wheel 23 as annular bracing wire and be draped and leave the chain 26 that is suspended on the sprocket wheel 22.So when handling endless chain 27, chain 27 and chain 26 are not in contact with one another, then improved the operability of chain 27, and prevented the generation noise.

Fig. 7 (a) and 7(b) shown the 4th embodiment of hoisting device 20 of the present invention.In this embodiment, be in the same axis of sprocket wheel 22 pivots center as worm gear 31 pivots center of ring gear, as worm screw 30 pivots center of driving gear pivot center perpendicular to worm gear 31, be parallel to the pivot center of worm gear 31 as the pivot center of the sprocket wheel 23 of pilot wheel, worm screw 30 and sprocket wheel 23 match by a pair of helical wheel 61 and 62.Worm screw 30 and helical wheel 61 are fixed in rotating shaft 63 places by bearing support 21 rotating supports, and sprocket wheel 23 and another helical wheel 62 are fixed in another rotating shaft 64 by bearing support 21 rotating supports.

In the hoisting device 20 of the 4th embodiment, as the sprocket wheel 22 of hanging wheel and as the sprocket wheel 23 of pilot wheel around the pivot axis that is parallel to each other, so, can handle chain 27, and can between

chain

26 and 27, not produce contact.

Be illustrated with reference to illustrated embodiment above, but the invention is not restricted to the scope of the foregoing description.In the disclosed scope of claim, the various modification of element can be arranged.

For example, in the hoisting device 20 of Fig. 6 and third and fourth embodiment shown in Figure 7, can use steel cable identical 46 and rope roller 42, to replace respectively as the chain 26 of suspender with as the sprocket wheel 22 of hanging wheel with second embodiment.

And driving gear and ring gear are not limited to the combination of worm and worm wheel, they have such tooth form with regard to enough-rotation of driving gear can be passed to ring gear, and by driving gear restriction by the rotation of rotating the ring gear that load causes.

In addition, as the method for slinging object 28, can pass through the combination of one group of hoisting device 20, and adopt 3 liftings, 4 liftings etc.

As top clear as described in, in hoisting device of the present invention, by handling annular rope and rotating pilot wheel, when suspender is applied pulling force, suspender is adjusted the bearing position of hanging wheel relatively, so, do not need to rise and put down object many times, and after adjusting, the hanging wheel position can not departed from.So, do not need workshop-trained man, just can adjust the work of hanging wheel position.

And, can carry out the position adjusting work of hanging wheel by being suspended on annular bracing wire on the pilot wheel, so, can easily carry out the position adjusting work.

In addition, because used driving gear and ring gear, so can use the power that alleviates by two gear reduction ratios to carry out the position adjusting work.So, both made for the weight overbalance object that large scale and weight are arranged, also can easily carry out the adjustment of levelness etc.

In addition, when the object of lifting state is swung when contacting with the surrounding buildings object, be applied on the hanging wheel though rotate load, limit by driving gear by the rotation energy that rotates the ring gear that load causes, so there is not hanging wheel to depart from the danger that loses weight balancing with object with respect to suspender.

So,, can provide a kind of hoisting device according to the present invention, take into account under the non-equilibrium object situation of weight, also can carry out the fast speed adjusting work, to adjust the levelness of object, and need not workshop-trained man and many labours, and when slinging state, prevented the unbalanced liability of object.

Claims

1, a kind of hoisting device is characterized in that: the hanging wheel and that bearing support rotatably support one is hung with a suspender is hung with the hand wheel of an annular operation rope; The driving gear and the ring gear that rotates with hanging wheel that rotate with pilot wheel are meshed; Driving gear and ring gear have the profile of tooth that the rotation of driving gear is delivered to ring gear, and can change restriction by rotating the ring gear rotation that load causes by driving tooth.

2, hoisting device as claimed in claim 1 is characterized in that, is integrally formed in the hanging wheel both sides with driving gear ingear ring gear.

3, hoisting device as claimed in claim 1 is characterized in that, hanging wheel is a sprocket wheel, suspender have one with the chain of described sprocket engagement.

4, hoisting device as claimed in claim 1 is characterized in that, hanging wheel is a steel cable roller, and suspender has a steel cable on the described steel cable roller.

5, member's as claimed in claim 1 car device is characterized in that pilot wheel is a sprocket wheel, annular bracing wire comprise one with the chain of described sprocket engagement.

6, hoisting device as claimed in claim 1 is characterized in that, the driving gear pivot center is in the axis identical with the hanging wheel pivot center; The pivot center of driving gear is perpendicular to the pivot center of ring gear, and the pivot center of pilot wheel is in the axis identical with the driving gear pivot center.

7, hoisting device as claimed in claim 1, it is characterized in that, the ring gear pivot center is in the axis identical with the hanging wheel pivot center, and the pivot center of driving gear is vertical with the ring gear pivot center, and the pivot center of pilot wheel is parallel to the pivot center of ring gear; Driving gear is connected by a pair of helical wheel with pilot wheel.

8, hoisting device as claimed in claim 1 is characterized in that, driving gear is a worm screw, and ring gear is a worm gear.