CN103626037A - Fine tuning device for crane hook hoisting height limiting device and adjusting method - Google Patents
Fine tuning device for crane hook hoisting height limiting device and adjusting method Download PDFInfo
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- CN103626037A CN103626037A CN201310600560.6A CN201310600560A CN103626037A CN 103626037 A CN103626037 A CN 103626037A CN 201310600560 A CN201310600560 A CN 201310600560A CN 103626037 A CN103626037 A CN 103626037A
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Abstract
The invention discloses a fine tuning device for a crane hook hoisting height limiting device. The fine tuning device comprises a limiting device worm wheel box, a plurality of cams which are arranged in parallel, a plurality of cam mounting seats, a cam shaft, a compressed spring, a limiting fine tuning device and a pressing cover limiting device housing, wherein the limiting device worm wheel box comprises a limiting device worm rod, a limiting device worm wheel and a worm wheel box; the limiting fine tuning device comprises a fine tuning worm rod, a pair of supporting bearings, a stifling cover and a plurality of worm teeth which are arranged on the semicircular lower sides of the cams. An adjusting method comprises the following steps: (1) each cam is rotated to an initial stage; (2) the cams and the cam mounting seats are manually rotated by a micro-switch; (3) the fine tuning worm rod is rotated so that the cams are finely tuned to the limiting device to be adjusted. The fine tuning device is compact in structure and rapid and convenient to adjust; according to the adjusting method, the micro-switch is triggered by finely rotating and pushing the corresponding cams, so that a crane hook is effectively prevented from being lifted to exceed the limitation. The debugging time is shortened and the working efficiency is improved greatly.
Description
Technical field
The present invention relates to a kind of safety device of crane hoisting mechanism, especially a kind ofly prevent that crane hook from surpassing the hook lifting height limiter micromatic setting of rising end position or falling-threshold position, the control method that also relates to micromatic setting, belongs to weight-lifting equipment technical field.
Background technology
Crane lifting height limiter is when hoisting or dropping to specified altitude assignment for crane hook, can automatic alarm reminds chaufeur note to and crane hook is forced stop, prevented a kind of safety guard of handling accident.The precision that adjustable height killer is set, is directly determining in-use performance and the safety performance of hoisting crane.
When the design appointment that existing adjustable height killer and control method stop at debugging hoist roller or the end position of customer requirement, adopt hand push cam to adjust its angle and trigger corresponding micro-switch, this control method is not that cam has been crossed the angle position needing, be exactly that cam does not trigger corresponding micro-switch, often need, through repeated multiple times adjustment, to expend for a long time.Especially when debugging hoister in large tonnage and the larger crane lifting height limiter of lifting range, above-mentioned defect is more obvious.
Summary of the invention
The object of this invention is to provide a kind of compact conformation, regulate efficient and convenient, and can precisely trigger micro-switch, thereby effectively prevent crane hook lifting height limiter micromatic setting and control method that crane hook lifting transfinites.
The present invention is achieved by the following technical programs:
A kind of crane hook lifting height limiter micromatic setting, comprise killer worm case, several cams that are arranged side by side, several cam mount pads, camshaft, stage clip, locating fine setting device and gland killer case, described killer worm case comprises killer worm screw, killer worm gear and worm gear case, described worm gear case one side is fixed on reel bearing cover, lifting reel axle one end is fixedly connected with killer worm screw one end, killer worm screw two ends respectively by bearings on worm gear case, be arranged on killer worm screw downside with the killer worm gear of killer worm mesh, described camshaft one end is stretched in worm gear case, killer worm gear is fixedly connected with camshaft one end, several cams each other angle are set on camshaft middle part alternately, the same side of each cam is equipped with cam mount pad, both sides, described cam mount pad lower end are extended a pair of straight-arm downwards, and cam mount pad is fixedly connected with camshaft by lock screw, several micro-switchs are fixed on cam upside side by side, and the triggering roller of each micro-switch is corresponding with the cam position of downside, compression spring sleeve is contained on the camshaft other end, and it is upper that stage clip one end is resisted against cam mount pad outside by back-up ring, and the stage clip other end is resisted against on handwheel by gland, and described handwheel is connected with camshaft other end ends screw, described locating fine setting device comprises fine setting worm screw, a pair of backup bearing, stifle and a plurality of wrom tooths of making on the semicircle downside of cam, the fine setting worm screw two ends that pass across a pair of straight-arm are supported on a pair of straight-arm lower end by a pair of backup bearing, fine setting worm screw one end is enclosed in a straight-arm by stifle, the fine setting worm screw other end crosses out another straight-arm, a plurality of wrom tooths and fine setting worm mesh, killer case one side is fixed on outside worm gear case one side.
Object of the present invention can also further realize by following technical measures.
Aforesaid crane hook lifting height limiter micromatic setting, a pair of straight-arm lower end of wherein said cam mount pad is provided with supporting bearing base, and fine setting worm screw two ends are supported in described supporting bearing base by a pair of backup bearing; The faying face of supporting bearing base axis runout cam and cam mount pad, and be positioned at longitudinal s ymmetry center plane of cam.The fine setting worm screw other end end face that crosses out another straight-arm is provided with flat recess.
Aforesaid crane hook lifting height limiter micromatic setting, the central angle alpha of a plurality of wrom tooths of the semicircle downside of its cam expansion in the arc-shaped is greater than 90 °.
A control method for crane hook lifting height limiter micromatic setting, after hoist roller has assembled, motor starts to regulate while driving reel to turn to the rearmost position that suspension hook rises or decline by speed reduction gearing, comprises the following steps:
1) unload killer case, each cam has turned to the triggering roller near corresponding with it micro-switch, connects the loop of corresponding function micro-switch;
2) unscrew handwheel, gland and stage clip are in relaxed state, and the contact surface of cam and cam mount pad unclamps; Unscrew lock screw, cam mount pad and camshaft are removed the relation that is fixedly connected with, can manual rotation cam and cam mount pad;
3) cam and the mounting seat of the corresponding function of turn simultaneously micro-switch downside, until gently lean on the triggering roller of micro-switch but do not trigger micro-switch;
4) tighten lock screw, cam mount pad is fixedly connected with camshaft; With screwdriver, aim at the flat recess on fine setting worm screw other end end face, turn fine setting worm screw, fine setting worm screw makes cam rotate around camshaft axle center trace by a plurality of wrom tooths of the semicircle downside of the cam that is engaged with, until promote to trigger roller, trigger micro-switch, make the micro-switch action with this cam corresponding function;
5) repeating step 3) and step 4) action, adjust one by one the micro-rotational angle of each cam, make it to trigger the micro-switch of corresponding function, thereby complete one by one the angle position adjustment of each cam, make each cam upper end trigger respectively decline one to one deceleration, decline power-off, the micro-switch of rise deceleration and rising power-off;
6) screw handwheel, make gland compress stage clip, load onto killer case, complete the position angle fine setting of each cam.
Crane hook lifting height limiter micromatic setting compact conformation of the present invention, regulate efficient and convenient, control method of the present invention adopts screwdriver turn fine setting worm screw, make corresponding cam rotate promotion triggering roller around camshaft axis trace and precisely trigger micro-switch, thereby effectively prevent that crane hook lifting from transfiniting.Shorten burn in period, greatly improved work efficiency.
Advantage and disadvantage of the present invention, the non-limitative illustration by preferred embodiment below is for illustration and explanation, and these embodiment, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the enlarged drawing of locating fine setting device of the present invention;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the schematic diagram of regulating step of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in FIG. 1 to 3, the crane hook lifting height limiter micromatic setting of the present embodiment comprises killer worm case 1, 4 cams that are arranged side by side 2, 4 cam mount pads 3, camshaft 4, stage clip 5, locating fine setting device 6 and gland killer case 7, killer worm case 1 comprises killer worm screw 11, killer worm gear 12 and worm gear case 13, described worm gear case 13 1 sides are fixed on reel bearing cover 8, lifting reel axle one end is fixedly connected with killer worm screw 11 one end, killer worm screw 11 two ends respectively by bearings on worm gear case 13, be arranged on killer worm screw 11 downsides with the killer worm gear 12 of killer worm screw 11 engagements.Camshaft 4 left ends stretch in worm gear case 13, killer worm gear 12 is fixed on camshaft 4 middle parts, 4 cams 2 each other angle are set on camshaft 4 alternately, the same side of each cam 2 is equipped with cam mount pad 3, described cam mount pad 3 both sides, lower end are extended a pair of straight-arm 31 downwards, and cam mount pad 3 is fixedly connected with camshaft 4 by lock screw 9.4 micro-switchs 10 are fixed on cam 2 upsides side by side, and the triggering roller 101 of each micro-switch 10 is corresponding with cam 2 positions of downside.Stage clip 5 is sleeved on camshaft 4 right-hand members, and stage clip 5 left ends are resisted against on cam mount pad 3 outsides of the rightmost side by back-up ring 51, and stage clip 5 right-hand members are resisted against on handwheel 53 by gland 52, and described handwheel 53 is connected with camshaft 4 right-hand member ends screws.
Locating fine setting device 6 comprises fine setting worm screw 61, a pair of backup bearing 62, stifle 63 and a plurality of wrom tooths 21 of making on the semicircle downside of cam 2, and described a plurality of wrom tooths 21 are distributed on the semicircle downside of cam 2, and expansion in the arc-shaped; The central angle alpha of a plurality of wrom tooths is greater than 90 °, and the present embodiment is 125 °, meets the needs of the slewing area of cam 2 completely.Fine setting worm screw 61 two ends that pass across a pair of straight-arm 31 are supported in the supporting bearing base 311 of a pair of straight-arm 31 lower ends by a pair of backup bearing 62.Fine setting worm screw 61 left ends are enclosed in by stifle 63 in the straight-arm 31 in left side, and fine setting worm screw 61 right-hand members cross out the straight-arm 31 on right side.A plurality of wrom tooths 21 and 61 engagements of fine setting worm screw, the faying face of supporting bearing base 311 axis runout cams 2 and cam mount pad 3, and be positioned at longitudinal s ymmetry center plane of cam 2, is convenient to a plurality of wrom tooths 21 and fine setting worm screw 61 better meshes.Killer case 7 passes on left a plurality of tightening screws and is fixed on worm gear case 13 outsides, and the present invention is not by the pollution of dust foul in protection, improves reliability of the present invention.The fine setting worm screw 61 right-hand member end faces that cross out right side straight-arm 31 are provided with flat recess 611, and screwdriver easy to use rotates fine setting worm screw 61, realizes the fine setting of cam 2 angles.
Figure 4 shows that control process of the present invention, the present embodiment be take suspension hook falling-threshold position and is described as example, and the adjustment of suspension hook rising end position is identical with the method.
After hoist roller has assembled, motor starts to regulate while driving reel to turn to the rearmost position that suspension hook declines by speed reduction gearing, and the present embodiment comprises the following steps:
1) unload killer case 7, as shown in a starting stage of Fig. 4, need the cam 2 regulating to turn to the triggering roller 101 near corresponding with it micro-switch 10, connect the loop of corresponding function micro-switch 10;
2) unscrew handwheel 53, gland 52 and stage clip 5 are in relaxed state, and the contact surface of cam 2 and cam mount pad 3 unclamps; Unscrew lock screw 9, cam mount pad 3 is removed and is fixedly connected with relation with camshaft 4, can manual rotation cam 2 and cam mount pad 3.
3), as shown in the b predefined phase of Fig. 4, cam 2 and the mounting seat 3 of the corresponding function of turn simultaneously micro-switch 10 downsides, until gently lean on the triggering roller 101 of micro-switch 10 but do not trigger micro-switch 10.
4) as shown in the c restriction stage of Fig. 4, tighten lock screw 9, cam mount pad 3 is fixedly connected with camshaft 4.With screwdriver, aim at the flat recess 611 on fine setting worm screw 61 right-hand member end faces, turn fine setting worm screw 61, fine setting worm screw 61 makes cam 2 rotate around camshaft 4 axle center trace by a plurality of wrom tooths 21 of the semicircle downside of the cam that is engaged with, at this moment triggering roller 101 is shifted onto on cam 2 on the top of cam 2, promote to trigger roller 101 and trigger micro-switch 10, make micro-switch 10 actions with this cam 2 corresponding functions.
5) repeating step 3) and step 4) action, adjust one by one the micro-rotational angle of each cam 2, make it to trigger the micro-switch 10 of corresponding function, thereby complete one by one the angle position adjustment of each cam 2, make each cam 2 upper ends trigger respectively decline one to one deceleration, decline power-off, the micro-switch 10 of rise deceleration and rising power-off.
6) screw handwheel 53, make gland 52 compress stage clip 5, load onto killer case 7, complete the position angle fine setting of each cam 2.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (5)
1. a crane hook lifting height limiter micromatic setting, comprise killer worm case, several cams that are arranged side by side, several cam mount pads, camshaft, stage clip, gland and killer case, described killer worm case comprises killer worm screw, killer worm gear and worm gear case, described worm gear case one side is fixed on reel bearing cover, lifting reel axle one end is fixedly connected with killer worm screw one end, killer worm screw two ends respectively by bearings on worm gear case, be arranged on killer worm screw downside with the killer worm gear of killer worm mesh, it is characterized in that: also comprise locating fine setting device, described camshaft one end is stretched in worm gear case, killer worm gear is fixedly connected with camshaft one end, several cams each other angle are set on camshaft middle part alternately, the same side of each cam is equipped with cam mount pad, both sides, described cam mount pad lower end are extended a pair of straight-arm downwards, and cam mount pad is fixedly connected with camshaft by lock screw, several micro-switchs are fixed on cam upside side by side, and the triggering roller of each micro-switch is corresponding with the cam position of downside, compression spring sleeve is contained on the camshaft other end, and it is upper that stage clip one end is resisted against cam mount pad outside by back-up ring, and the stage clip other end is resisted against on handwheel by gland, and described handwheel is connected with camshaft other end ends screw, described locating fine setting device comprises fine setting worm screw, a pair of backup bearing, stifle and a plurality of wrom tooths of making on the semicircle downside of cam, the fine setting worm screw two ends that pass across a pair of straight-arm are supported on a pair of straight-arm lower end by a pair of backup bearing, fine setting worm screw one end is enclosed in a straight-arm by stifle, the fine setting worm screw other end crosses out another straight-arm, a plurality of wrom tooths and fine setting worm mesh, killer case one side is fixed on outside worm gear case one side.
2. crane hook lifting height limiter micromatic setting as claimed in claim 1, it is characterized in that: a pair of straight-arm lower end of described cam mount pad is provided with supporting bearing base, fine setting worm screw two ends are supported in described supporting bearing base by a pair of backup bearing, the faying face of supporting bearing base axis runout cam and cam mount pad, and be positioned at longitudinal s ymmetry center plane of cam.
3. crane hook lifting height limiter micromatic setting as claimed in claim 1, is characterized in that: the fine setting worm screw other end end face that crosses out another straight-arm is provided with flat recess.
4. crane hook lifting height limiter micromatic setting as claimed in claim 1, is characterized in that: the central angle alpha of a plurality of wrom tooths of the semicircle downside of cam expansion in the arc-shaped is greater than 90 °.
5. a control method for crane hook lifting height limiter micromatic setting as claimed in claim 1, after hoist roller has assembled, motor starts to regulate while driving reel to turn to the rearmost position that suspension hook rises or decline by speed reduction gearing; It is characterized in that, comprise the following steps:
Unload killer case, each cam has turned to the triggering roller near corresponding with it micro-switch, connects the loop of corresponding function micro-switch;
2) unscrew handwheel, gland and stage clip are in relaxed state, and the contact surface of cam and cam mount pad unclamps; Unscrew lock screw, cam mount pad and camshaft are removed the relation that is fixedly connected with, can manual rotation cam and cam mount pad;
3) cam and the mounting seat of the corresponding function of turn simultaneously micro-switch downside, until gently trigger roller but do not trigger micro-switch by micro-switch;
4) tighten lock screw, cam mount pad is fixedly connected with camshaft; With screwdriver, aim at the flat recess on fine setting worm screw other end end face, turn fine setting worm screw, fine setting worm screw makes cam rotate around camshaft axle center trace by a plurality of wrom tooths of the semicircle downside of the cam that is engaged with, until promote to trigger roller, trigger micro-switch, make the micro-switch action with this cam corresponding function;
5) repeating step 3) and step 4) action, adjust one by one the micro-rotational angle of each cam, make it to trigger the micro-switch of corresponding function, thereby complete one by one the angle position adjustment of each cam, make each cam upper end trigger respectively decline one to one deceleration, decline power-off, the micro-switch of rise deceleration and rising power-off;
6) screw handwheel, make gland compress stage clip, load onto killer case, complete the position angle fine setting of each cam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310600560.6A CN103626037B (en) | 2013-11-25 | 2013-11-25 | Crane hook lifting height limiter micromatic setting and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310600560.6A CN103626037B (en) | 2013-11-25 | 2013-11-25 | Crane hook lifting height limiter micromatic setting and control method |
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| Publication Number | Publication Date |
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| CN103626037A true CN103626037A (en) | 2014-03-12 |
| CN103626037B CN103626037B (en) | 2015-08-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706356A (en) * | 2018-06-28 | 2018-10-26 | 襄阳市精信催化剂有限责任公司 | A kind of portable conveying device of jacking creeping motion type for broken granule materials |
| CN109663904A (en) * | 2018-09-29 | 2019-04-23 | 四川德胜集团钒钛有限公司 | A kind of vanadium titanium steel water high-precision transhipment metering system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH028191A (en) * | 1988-04-04 | 1990-01-11 | Kayaba Ind Co Ltd | Adjusting device for suspension position |
| CN2761562Y (en) * | 2004-12-27 | 2006-03-01 | 谌志祥 | Controller for stroke limit |
| CN201896044U (en) * | 2010-12-06 | 2011-07-13 | 南京国英起重电器有限公司 | Hoisting capacity limiter with two-level adjustment function |
| CN203593545U (en) * | 2013-11-25 | 2014-05-14 | 江苏沃得起重机有限公司 | Fine adjustment device for crane hook lifting height limiter |
-
2013
- 2013-11-25 CN CN201310600560.6A patent/CN103626037B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH028191A (en) * | 1988-04-04 | 1990-01-11 | Kayaba Ind Co Ltd | Adjusting device for suspension position |
| CN2761562Y (en) * | 2004-12-27 | 2006-03-01 | 谌志祥 | Controller for stroke limit |
| CN201896044U (en) * | 2010-12-06 | 2011-07-13 | 南京国英起重电器有限公司 | Hoisting capacity limiter with two-level adjustment function |
| CN203593545U (en) * | 2013-11-25 | 2014-05-14 | 江苏沃得起重机有限公司 | Fine adjustment device for crane hook lifting height limiter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706356A (en) * | 2018-06-28 | 2018-10-26 | 襄阳市精信催化剂有限责任公司 | A kind of portable conveying device of jacking creeping motion type for broken granule materials |
| CN109663904A (en) * | 2018-09-29 | 2019-04-23 | 四川德胜集团钒钛有限公司 | A kind of vanadium titanium steel water high-precision transhipment metering system |
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|---|---|
| CN103626037B (en) | 2015-08-05 |
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