CN103010958B - Load swing angle measurement device and hoisting machinery - Google Patents
Load swing angle measurement device and hoisting machinery Download PDFInfo
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- CN103010958B CN103010958B CN201210558420.2A CN201210558420A CN103010958B CN 103010958 B CN103010958 B CN 103010958B CN 201210558420 A CN201210558420 A CN 201210558420A CN 103010958 B CN103010958 B CN 103010958B
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Abstract
The embodiment of the invention discloses a load swing angle measurement device which comprises a base body, a telescopic part, a sleeving ring, an inclination angle measurer, a rotating angle measurer and a linear displacement measurer, wherein the base body is used for being fixedly connected with an arm support of a hoisting machinery; the telescopic part is arranged on the base body and can horizontally rotate and extend and retract relative to the base body; the sleeving ring is used for sleeving a lifting rope of the hoisting machinery; the sleeving ring is connected with the free end of the telescopic part; the inclination angle measurer is used for measuring an inclination angle of the load swing angle measurement device relative to the horizontal plane; the rotating angle measurer is used for measuring a horizontal rotating angle of the telescopic part; and the linear displacement measurer is used for measuring extension and retraction displacement of the telescopic part. By converting the space swing angle of the load into the horizontal rotation and the extension and retraction displacement of the telescopic part, the load swing angle measurement device disclosed by the embodiment of the invention implements real-time measurement of a swing angle of a load relative to a balance position in all directions.
Description
Technical field
The present invention relates to technical field of engineering machinery, especially relate to a kind of lift heavy deflection angle measurement device and there is the elevator machinery of this lift heavy deflection angle measurement device.
Background technology
Offshore Platform elevator machinery or port crane are in hoisting process, due to reasons such as wind wave action, jib revolution and pitching, lift heavy will occur significantly to wave, in the time that amplitude of fluctuation is larger, be unfavorable for fast and stable and complete lifting task, affect work efficiency.Therefore the pivot angle of lift heavy is carried out to real-time measurement and just seem and be necessary very much, understand on the one hand the general motion rule of lift heavy pivot angle, lay the foundation for controlling in real time waving of lift heavy on the other hand.The research of crane tool lift heavy deflection angle measurement device at present mainly concentrates on off-shored crane.
Wherein method of measurement is to place a high-rate laser scanner for two groups of quadrature arrangement on lifting rope top, and the laser that laser transimitter sends forms two groups of light belts, and the pivot angle region of lift heavy has been contained in light belt district; When lifting rope is during in a certain position, receptor is the laser that does not receive this position and launch, thereby obtains two orthogonal position signals; Laser scanner also can replace with CCD camera, and correspondingly receptor replaces with one flat plate.
Another kind of method of measurement is to place a laser transimitter at the apical position of lifting rope, on suspension hook, place reflective devices, the laser transimitter on top has certain for search function, can follow reflective devices motion, the amount of exercise size and Orientation of laser transimitter has reflected the pivot angle size and Orientation of lift heavy.
Also having a kind of method of measurement is, at lifting rope apical position, a sleeve that inwall is wear-resisting is installed, and is enclosed within on lifting rope, and sleeve can swing with lifting rope, and the sleeve angular transducer orthogonal with two is connected, and can measure the pivot angle of lift heavy.
In above-mentioned method of measurement, the method cost of optics or vision measurement is higher, and real-time is poor; Sleeve adds the method installation and maintenance inconvenience of angular transducer, and sleeve has wearing and tearing to lifting rope.
Summary of the invention
The embodiment of the present invention provides a kind of lift heavy deflection angle measurement device, and it has realized the pivot angle of real-time measurement lift heavy with respect to balance position, and structurally fairly simple, total cost is lower, and real-time is good.
The embodiment of the present invention provides a kind of lift heavy deflection angle measurement device, comprise pedestal, extensible member, the collar, inclination angle measurer, rotation angle measurement device and straight-line displacement measurer, wherein said pedestal is for being fixedly connected with the jib of elevator machinery, described extensible member is arranged on described pedestal and can relatively described pedestal horizontal rotation and flexible, the described collar is for being set in the lifting rope of elevator machinery, the described collar is connected with the free end of described extensible member, described inclination angle measurer is for measuring described lift heavy deflection angle measurement device inclination angle with respect to the horizontal plane, described rotation angle measurement device is for measuring the horizontal rotation angle of described extensible member, described straight-line displacement measurer is for measuring the telescopic displacement of described extensible member.
Further, described extensible member at least comprises the first expansion link and pilot bar, described the first expansion link and the socket of described pilot bar.
Further, described pedestal is the body structure with at least one receiving space, and at least one side of described pedestal forms opening.
Further, described pedestal is the fan-shaped body structure with at least one receiving space.
Further, described receiving space is stretched in one end of described pilot bar, the relatively described pedestal horizontal rotation of described pilot bar.
Further, described extensible member at least comprises two section telescopic bars, and every adjacent two section telescopic bars can coaxially stretch.
Further, described extensible member comprises the first expansion link, the second expansion link and pilot bar, described the first expansion link and the socket of described pilot bar, described the first expansion link can coaxially stretch by relatively described pilot bar, and described the second expansion link can coaxially stretch by relatively described the first expansion link.
Further, in described inclination angle measurer, rotation angle measurement device and straight-line displacement measurer, at least one is arranged on described pedestal.
Further, described rotation angle measurement device is fixed by axis of revolution and described extensible member, and described extensible member turns round around described axis of revolution.
Further, described extensible member is provided with stay cord coupling link, and described straight-line displacement measurer is a displacement sensor for pull rope, and it has stay cord, and described stay cord involves and is connected on described stay cord coupling link from described extensible member.
Further, described extensible member is provided with supporting pad, on described pedestal and between described supporting pad, is provided with friction pad, and in the time that described extensible member does gyroscopic movement, described supporting pad and described friction pad form sliding block joint.
Further, the described collar is at least three limits or is an annular detachable parts.
Further, the described collar is joined and is formed cyclic structure by four sections of rollers, and every section of roller comprises wheel shaft and is set in the cylinder on wheel shaft.
The embodiment of the present invention also provides a kind of elevator machinery, comprises jib and lifting rope, and above-mentioned lift heavy deflection angle measurement device is installed between described jib and described lifting rope.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: the lift heavy deflection angle measurement device that above-described embodiment provides, by the space pivot angle of lift heavy being converted into horizontal rotation and the telescopic displacement of extensible member, by rotation angle measurement device, the horizontal rotation of extensible member is measured, by straight-line displacement measurer, the telescopic displacement of extensible member is measured, and use inclination angle measurer to compensate jib attitude, realize real-time measurement lift heavy with respect to the pivot angle in all directions of balance position; Structurally fairly simple, shared spatial volume is little, installs and uses also more conveniently, and total cost is low, and survey precision is high, and for the method for optics or vision measurement, real-time is good; For different crane type, this measurement mechanism can change flexible stroke by the expansion link quantity of increase and decrease extensible member, and Applicable scope is wider.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the lift heavy deflection angle measurement device that provides of the embodiment of the present invention;
The structural representation that Fig. 2 is lift heavy deflection angle measurement device when measuring lift heavy pivot angle;
Fig. 3 is the pedestal of lift heavy deflection angle measurement device and the connection structure schematic diagram of extensible member;
Fig. 4 is the part sectional view of Fig. 3;
Fig. 5 is the birds-eye view of Fig. 3;
Fig. 6 is the lateral plan of Fig. 3;
Fig. 7 is the structural representation of the first expansion link of extensible member;
Fig. 8 is the second expansion link of extensible member and the plan structure schematic diagram of the collar;
Fig. 9 is the second expansion link of extensible member and the side-looking structural representation of the collar;
The mathematical principle coordinate diagram that Figure 10 is lift heavy deflection angle measurement device when measuring lift heavy pivot angle.
Number in the figure explanation: measurement mechanism 10, pedestal 11, inclination angle measurer 12, rotation angle measurement device 13, straight-line displacement measurer 14, extensible member 16, pilot bar 16a, the first expansion link 16b, the second expansion link 16c, the collar 17, first paragraph roller 17a, second segment roller 17b, the 3rd section of roller 17c, the 4th section of roller 17d, top board 18, base plate 19, tailgate 20, side plate 21, receiving space 22, opening 23, otic placode 24, axostylus axostyle 25, base 26, fastener 27, sleeve 28, axis of revolution 29, snap ring 30, supporting pad 31, friction pad 32, chute 33, slide block 34, chute 35, slide block 36, stay cord coupling link 37, stay cord track adjusting wheel 38, screw 39, jib 50, lifting rope 60.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
For Offshore Platform elevator machinery or port crane in hoisting process, there is the problem of obviously waving in lift heavy, the embodiment of the present invention proposed a kind of low cost, easy to install, can be as the lift heavy deflection angle measurement device of measuring in real time, object is to obtain the test figures of lift heavy pivot angle general motion rule, and lays the foundation for preventing shaking controlling.
Fig. 1 is the structural representation of the lift heavy deflection angle measurement device (hereinafter to be referred as " measurement mechanism ") that provides of the embodiment of the present invention, the structural representation that Fig. 2 is the measurement mechanism that provides of the embodiment of the present invention when measuring lift heavy pivot angle, please refer to Fig. 1 and Fig. 2, this measurement mechanism 10 is arranged on jib 50 while use and is positioned near lifting rope 60 tops, and this measurement mechanism 10 comprises pedestal 11, inclination angle measurer 12, rotation angle measurement device 13, straight-line displacement measurer 14, extensible member 16 and the collar 17.Pedestal 11 is fixedly connected with jib 50, extensible member 16 is arranged on pedestal 11 and pedestal 11 horizontal rotations relatively, and pedestal 11 is flexible relatively simultaneously for extensible member 16, and the collar 17 is connected on the free end of extensible member 16 away from pedestal 11, and the collar 17 is set on lifting rope 60.In the time that lifting rope 60 swings, under the drive of lifting rope 60, the relative pedestal 11 of extensible member 16 turns round, and the relative pedestal 11 of simultaneous retractable parts 16 is flexible, rotation angle measurement device 13 is for measuring the horizontal rotation angle of extensible member 16, and straight-line displacement measurer 14 is for measuring the telescopic displacement of extensible member 16.In the time that jib 50 does luffing, under the drive of jib 50, the inclination angle of this measurement mechanism 10 will change, and inclination angle measurer 12 is for measuring this measurement mechanism 10 inclination angle with respect to the horizontal plane.
Fig. 3 to Fig. 6 is the connection structure schematic diagram of pedestal 11 and extensible member 16, please refer to Fig. 3 to Fig. 6, this pedestal 11 is fan-shaped body structure in the present embodiment, comprise top board 18, base plate 19, tailgate 20 and two side plates 21, top board 18 and base plate 19 are fan shape, tailgate 20 is connected to afterbody one side of top board 18 and base plate 19, two side plates 21 are connected to the both sides, front and back of top board 18 and base plate 19, thereby at receiving space 22 of the interior formation of pedestal 11, head one side of pedestal 11 forms the opening 23 of an arc being connected with receiving space 22.The level on 24, two otic placodes 24 of two otic placodes that is also connected with on tailgate 20 is equipped with axostylus axostyle 25, and axostylus axostyle 25 can be bearing pin or screw, is installed with base 26 on axostylus axostyle 25.This measurement mechanism 10 is fixedly connected on jib 50 by base 26, base 26 is fixedly connected with jib 50, when initial installation, pedestal 11 can rotate relative to base 26 around axostylus axostyle 25, to regulate the initial installation site of pedestal 11 relative jibs 50, this measurement mechanism 10 is adjusted to the position of installing in level, and then by fastener 27, pedestal 11 is fixedly connected with axostylus axostyle 25, pedestal 11 can not be rotated around axostylus axostyle 25 again, and simultaneously because base 26 is fixed on axostylus axostyle 25, therefore pedestal 11 and base 26 are now fixedly connected into an entirety, in the time that jib 50 does luffing, this measurement mechanism 10 also will be followed jib 50 and be done together luffing.
Inclination angle measurer 12, rotation angle measurement device 13 and straight-line displacement measurer 14 are arranged on the top board 18 outside pedestal 11 in the present embodiment.Installation site the present invention for inclination angle measurer 12, rotation angle measurement device 13 and straight-line displacement measurer 14 does not limit, understandably, inclination angle measurer 12, rotation angle measurement device 13 and straight-line displacement measurer 14 can also be arranged on other applicable places, for example, be arranged on other positions of extensible member 16 or pedestal 11.
Extensible member 16 is arranged on pedestal 11, and extensible member 16 pedestal 11 horizontal rotations relatively under the swing of lifting rope 60 drives.One end of extensible member 16 stretches in the receiving space 22 of pedestal 11 from the arc opening 23 of pedestal 11 in the present embodiment, and pedestal 11 is provided with sleeve 28, and sleeve 28 is vertically fixed on base plate 19.Rotation angle measurement device 13 has axis of revolution 29 in the present embodiment, one end of axis of revolution 29 stretches in sleeve 28, extensible member 16 forms snap ring 30 near one end of pedestal 11, this snap ring 30 is sheathed to be fixed on axis of revolution 29, when extensible member 16 turns round when doing level and swinging in arc opening 23 limited ranges, axis of revolution 29 synchronous revolvings of extensible member 16 driven rotary angle measurement equipments 13, thus can record by rotation angle measurement device 13 the horizontal rotation angle of extensible member 16.
Also pedestal 11 is flexible relatively under the swing of lifting rope 60 drives for extensible member 16.Extensible member 16 at least comprises pilot bar 16a and the first expansion link 16b, the first expansion link 16b and pilot bar 16a socket, and pilot bar 16a stretches in the receiving space 22 of pedestal 11 from the arc opening 23 of pedestal 11.The quantity of expansion link can be a joint or more than, in the time that this measurement mechanism 10 needs larger length, expansion link can adopt more piece, to meet span demand larger between jib 50 and lifting rope 60.Expansion link, at least two joints, comprises the first expansion link 16b and the second expansion link 16c in the present embodiment, the second expansion link 16c and the first expansion link 16b socket, and every adjacent two section telescopic bars can coaxially stretch.
Do the stability of gyroscopic movement in order to increase extensible member 16, the below of extensible member 16 is provided with supporting pad 31, on base plate 19 in pedestal 11, the position corresponding with this supporting pad 31 is provided with the friction pad 32 of arc band shape, in the time that extensible member 16 does horizontal rotation motion, supporting pad 31 slides at friction pad 32, extensible member 16 is had to supplemental support effect, stability when increase extensible member 16 moves.
Fig. 7 to Fig. 9 is the extensible member 16 that provides of the embodiment of the present invention and the connection structure schematic diagram of the collar 17, please refer to Fig. 7 to Fig. 9, and pilot bar 16a is cavity structure, and inside is provided with chute 33.The first expansion link 16b socket is arranged on pilot bar 16a above and pilot bar 16a is flexible relatively under the swing of lifting rope 60 drives.Wherein the first expansion link 16b is provided with slide block 34 near the outside of one end of pilot bar 16a, between slide block 34 and chute 33, forms sliding pair, and the first expansion link 16b inserts in pilot bar 16a and can do and coaxially stretch out or retract along pilot bar 16a.
The first expansion link 16b is cavity structure, inside is provided with chute 35, the second expansion link 16c is provided with slide block 36 near the outside of one end of the first expansion link 16b, between slide block 36 and chute 35, form sliding pair, the second expansion link 16c inserts in the first expansion link 16b and can do and coaxially stretch out or retract along the first expansion link 16b.
The second expansion link 16c is also provided with stay cord coupling link 37 near one end of pedestal 11, straight-line displacement measurer 14 is a displacement sensor for pull rope in the present embodiment, it has stay cord (not shown), the stay cord of straight-line displacement measurer 14 involves and is connected on stay cord coupling link 37 from the pilot bar 16a of hollow and the first expansion link 16b, when the relative pilot bar 16a of the second expansion link 16c and the first expansion link 16b stretch out or retract, drive stay cord is synchronously stretched out or retracted, thereby record the telescopic displacement of extensible member 16 by straight-line displacement measurer 14.In order to guide the motion of stay cord, in pedestal 11, be provided with stay cord track adjusting wheel 38, stay cord rides in stay cord track adjusting wheel 38, guides the motion of stay cord in pilot bar 16a and the first expansion link 16b by stay cord track adjusting wheel 38, makes stay cord motion more smooth and easy.
The collar 17 is arranged on the free end of the second expansion link 16c away from pedestal 11.The collar 17 is at least three limits or is an annular detachable parts, the collar 17 is joined and is formed cyclic structure by four sections of rollers in the present embodiment, more specifically, join and form by four sections of rollers, first paragraph roller 17a respectively, second segment roller 17b, the 3rd section of roller 17c and the 4th section of roller 17d, first paragraph roller 17a is connected away from one end of the first expansion link 16b with the second expansion link 16c, every section of roller comprises wheel shaft and is set in the cylinder on wheel shaft, between each section of roller, join end to end and be articulated and connected, by fixing screw 39, the 4th section of roller 17d is connected with the second expansion link 16c, thereby four sections of rollers form square roller structure.The collar 17 is enclosed within on lifting rope 60, and the gap between every section of roller and lifting rope 60 is very little, in the time that oscillating motion occurs lifting rope 60, will affect extensible member 16 to be synchronized with the movement.The wheel shaft length of four sections of rollers can adjust, to adapt to the diameter of lifting rope 60.Herein, four sections of roller structures that adopt can replace with the roller structure of other hop counts, such as three sections of roller structures also can be realized and entangle lifting rope.
Inclination angle measurer 12 is for measuring this measurement mechanism 10 inclination angle with respect to the horizontal plane, the variation of the lifting rope 60 static balance directions that cause because of the motion in jib 50 pitch orientation when compensating measure.In the time that jib 50 does luffing, this measurement mechanism 10 will be followed jib 50 and be moved together, and the inclination angle between this measurement mechanism 10 and horizontal surface is recorded by inclination angle measurer 12.Inclination angle measurer 12 is dip compass in the present embodiment.
Please refer to Fig. 9, the mathematical principle that utilizes above-mentioned measurement mechanism 10 to measure lift heavy pivot angle is:
In figure, O point is deflection angle measurement device normalization initial point, OA is jib, direction (vertical direction) when AC is lifting rope static balance, OC is the initial installation site of this measurement mechanism, set up system of axes O-XYZ, wherein OX direction overlaps with OC direction, and OZ direction is parallel with AC direction, and OY direction is determined by right-hand rule.When initial, the height of AC is h, and the distance of OC is L
0.
In the time of lift heavy generation oscillating motion, the collar is followed lifting rope and is moved together, and drive extensible member does horizontal rotation motion and simultaneous retractable bar does fore and aft motion, in O-XY plane, measuring point is followed lifting rope by the C point of initial time and is moved to B point, and establishing the now pivot angle measured value of OB is θ
c, the elongation measured value of OB is L
c, and by B point in OX direction and projection in OY direction, had by geometric relationship:
In the time that the angle of jib OA and horizontal surface is definite value, when jib does not have luffing, result of calculation is lift heavy pivot angle value.In the time that the angle of jib OA and horizontal surface is not definite value, while being jib generation luffing, jib will drive this measurement mechanism to move together, the angle of this measurement mechanism and horizontal surface will change, now record the angle between this measurement mechanism and horizontal surface by inclination angle measurer, the angle of AC direction when result of calculation is lift heavy pivot angle direction and initial installation site, the value being recorded by inclination angle measurer compensates and obtains the now pivot angle value of lift heavy result of calculation.
Understandably, the pedestal of this measurement mechanism can adopt other structures of non-box shape to replace.
Understandably, the inclination angle measurer of this measurement mechanism also can adopt other measurement of dip angle element to replace, for example, adopt other obliquity sensor to replace.
Understandably, the rotation angle measurement device of this measurement mechanism also can adopt other measurement of angle element to replace, for example adopt other angular sensor or coder etc., wherein coder is a kind of device that angular transposition or straight-line displacement is converted to electric signal, the former is called code-disc, for angle displacement measurement; The latter is called yardstick, measures for straight-line displacement.
Understandably, the straight-line displacement measurer of this measurement mechanism also can adopt other straight-line displacement measuring cell to replace, for example, adopt other linear displacement transducers, rang sensor, distance measurement instrument or the coder etc. except displacement sensor for pull rope.
Understandably, the take off data of rotation angle measurement device, straight-line displacement measurer and inclination angle measurer can be processed by computing machine or other data processing chips, also can be on measurement mechanism integrated data process chip.
Comprehensively above-mentioned, the measurement mechanism of the embodiment of the present invention is structurally fairly simple, easily realizes, and shared spatial volume is little, installs and uses also more convenient; This measurement mechanism is converted into the space pivot angle of lift heavy the mathematical principle of the horizontal rotation of extensible member and the telescopic displacement of expansion link, measuring cell is rotation angle measurement device and straight-line displacement measurer, subsidiary element is inclination angle measurer, total cost is low, and survey precision is high, data processing is also quick, and for the method for optics or vision measurement, real-time is good; This measurement mechanism uses inclination angle measurer to compensate jib attitude, has realized the pivot angle of real-time measurement lift heavy with respect to balance position; The structure design of this measurement mechanism has been realized the deflection angle measurement in lift heavy all directions, does not need quadrature arrangement measurement mechanism to measure respectively the pivot angle on both direction; This measurement mechanism adopts the collar to entangle lifting rope, directly contact, but reduced significantly the wearing and tearing that lifting rope is subject to, and mounting or dismounting is convenient with lifting rope; For different crane type, this measurement mechanism can change flexible stroke by increase and decrease expansion link quantity, and Applicable scope is wider.
The embodiment of the present invention also provides a kind of elevator machinery, this elevator machinery comprise jib, lifting rope and be arranged on jib and lifting rope between above-mentioned lift heavy deflection angle measurement device, this lift heavy deflection angle measurement device is for measuring in real time the pivot angle of lift heavy.Other structures of this elevator machinery are well known to those skilled in the art, and are not repeated herein.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (14)
1. a lift heavy deflection angle measurement device, it is characterized in that: comprise pedestal (11), extensible member (16), the collar (17), inclination angle measurer (12), rotation angle measurement device (13) and straight-line displacement measurer (14), wherein:
Described pedestal (11) is fixedly connected with the jib (50) of elevator machinery,
It is upper and can relatively described pedestal (11) horizontal rotation and flexible that described extensible member (16) is arranged on described pedestal (11),
The described collar (17) is set on the lifting rope (60) of elevator machinery, and the described collar (17) is connected with the free end of described extensible member (16),
Described inclination angle measurer (12) is for measuring described lift heavy deflection angle measurement device inclination angle with respect to the horizontal plane,
Described rotation angle measurement device (13) is for measuring the horizontal rotation angle of described extensible member (16),
Described straight-line displacement measurer (14) is for measuring the telescopic displacement of described extensible member (16).
2. lift heavy deflection angle measurement device as claimed in claim 1, it is characterized in that: described extensible member (16) at least comprises the first expansion link (16b) and pilot bar (16a) described the first expansion link (16b) and described pilot bar (16a) socket.
3. lift heavy deflection angle measurement device as claimed in claim 2, it is characterized in that, described pedestal (11) is for having the body structure of at least one receiving space (22), and at least one side of described pedestal (11) forms opening (23).
4. lift heavy deflection angle measurement device as claimed in claim 3, is characterized in that, described pedestal (11) is for having the fan-shaped body structure of at least one receiving space (22).
5. lift heavy deflection angle measurement device as claimed in claim 2, it is characterized in that, described receiving space (22) is stretched in one end of described pilot bar (16a), the relatively described pedestal of described pilot bar (16a) (11) horizontal rotation.
6. lift heavy deflection angle measurement device as claimed in claim 2, is characterized in that, described extensible member (16) at least comprises two section telescopic bars, and every adjacent two section telescopic bars can coaxially stretch.
7. lift heavy deflection angle measurement device as claimed in claim 6, it is characterized in that, described extensible member (16) comprises the first expansion link (16b), the second expansion link (16c) and pilot bar (16a), described the first expansion link (16b) and described pilot bar (16a) socket, described the first expansion link (16a) can coaxially stretch by relatively described pilot bar (16a), and described the second expansion link (16b) can coaxially stretch by relatively described the first expansion link (16b).
8. lift heavy deflection angle measurement device as claimed in claim 1, it is characterized in that, in described inclination angle measurer (12), rotation angle measurement device (13) and straight-line displacement measurer (14), at least one is arranged on described pedestal (11).
9. lift heavy deflection angle measurement device as claimed in claim 8, it is characterized in that, described rotation angle measurement device (13) is fixing by axis of revolution (29) and described extensible member (16), and described extensible member (16) turns round around described axis of revolution (29).
10. lift heavy deflection angle measurement device as claimed in claim 1, it is characterized in that, described extensible member (16) is provided with stay cord coupling link (37), described straight-line displacement measurer (14) is a displacement sensor for pull rope, it has stay cord, and described stay cord involves and is connected on described stay cord coupling link (37) from described extensible member (16).
11. lift heavy deflection angle measurement devices as claimed in claim 1, it is characterized in that, described extensible member (16) is provided with supporting pad (31), described pedestal (11) above and between described supporting pad (31) is provided with friction pad (32), in the time that described extensible member (16) does gyroscopic movement, described supporting pad (31) forms sliding block joint with described friction pad (32).
12. lift heavy deflection angle measurement devices as claimed in claim 1, is characterized in that, the described collar (17) is at least three limits or is an annular detachable parts.
13. lift heavy deflection angle measurement devices as claimed in claim 12, it is characterized in that, the described collar (17) is joined and is formed cyclic structure by four sections of rollers (17a, 17b, 17c, 17d), and every section of roller (17a, 17b, 17c, 17d) comprises wheel shaft and is set in the cylinder on wheel shaft.
14. 1 kinds of elevator machineries, comprise jib (50) and lifting rope (60), it is characterized in that: the lift heavy deflection angle measurement device (10) as described in any one in claim 1 to 13 is installed between described jib (50) and described lifting rope (60).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558420.2A CN103010958B (en) | 2012-12-20 | 2012-12-20 | Load swing angle measurement device and hoisting machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558420.2A CN103010958B (en) | 2012-12-20 | 2012-12-20 | Load swing angle measurement device and hoisting machinery |
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| CN103010958A CN103010958A (en) | 2013-04-03 |
| CN103010958B true CN103010958B (en) | 2014-07-16 |
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| CN201210558420.2A Active CN103010958B (en) | 2012-12-20 | 2012-12-20 | Load swing angle measurement device and hoisting machinery |
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| JPH01133893A (en) * | 1987-08-06 | 1989-05-25 | Kato Works Co Ltd | Method and device for hanging load in crane |
| JPH0639875U (en) * | 1992-11-05 | 1994-05-27 | 四国計測工業株式会社 | Crane rope deflection angle detector |
| JP2001063959A (en) * | 1999-08-26 | 2001-03-13 | Nkk Corp | Crane wire damper |
| KR20110021080A (en) * | 2009-08-25 | 2011-03-04 | 주식회사 포스코 | Apparatus for detecting vibration of wire rope |
-
2012
- 2012-12-20 CN CN201210558420.2A patent/CN103010958B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01133893A (en) * | 1987-08-06 | 1989-05-25 | Kato Works Co Ltd | Method and device for hanging load in crane |
| JPH0639875U (en) * | 1992-11-05 | 1994-05-27 | 四国計測工業株式会社 | Crane rope deflection angle detector |
| JP2001063959A (en) * | 1999-08-26 | 2001-03-13 | Nkk Corp | Crane wire damper |
| KR20110021080A (en) * | 2009-08-25 | 2011-03-04 | 주식회사 포스코 | Apparatus for detecting vibration of wire rope |
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| Publication number | Publication date |
|---|---|
| CN103010958A (en) | 2013-04-03 |
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