CN210505282U - Height measuring device for crane hook - Google Patents
Height measuring device for crane hook Download PDFInfo
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- CN210505282U CN210505282U CN201921431650.6U CN201921431650U CN210505282U CN 210505282 U CN210505282 U CN 210505282U CN 201921431650 U CN201921431650 U CN 201921431650U CN 210505282 U CN210505282 U CN 210505282U
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- winding drum
- wire rope
- supporting seat
- guide wheel
- lifting
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- 239000002965 rope Substances 0.000 claims abstract description 50
- 238000004804 winding Methods 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 238000005259 measurement Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 9
- 238000009776 industrial production Methods 0.000 description 3
- 230000003028 elevating Effects 0.000 description 2
- 230000001050 lubricating Effects 0.000 description 2
- 239000002365 multiple layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
A height measuring device for crane hook relates to the production field of hoisting machinery, which comprises a trolley bottom frame, a hoisting motor base is arranged on the trolley bottom frame, a hoisting motor supporting seat is fixed on the hoisting motor base, a hoisting motor which is rotationally connected is arranged on the motor supporting seat, a winding drum which is engaged and connected is also fixed on a speed reducing mechanism, the winding drum is rotationally connected with the winding drum supporting seat, a guide wheel supporting seat is also arranged on the trolley bottom frame, a guide wheel which is rotationally connected is arranged on the guide wheel supporting seat, an angular encoder is fixed on the rotating shaft of the guide wheel, the angular encoder is electrically connected with a microprocessor, the microprocessor is electrically connected with a display unit, the guide wheel is rotationally connected with a hook below through a pulley, the outer ring of the guide wheel is guided to a steel wire rope through the guide wheel, the displacement of the outer ring of the guide, and the length of the laid steel wire rope is obtained through conversion, so that the real-time height of the lifting hook is obtained.
Description
Technical Field
The utility model relates to a hoisting machinery produces the field, especially a crane hook height measurement device.
Background
The crane is widely applied in the industrial production field, has wide relation in various fields of industrial production, and is an indispensable ring of industrial production. In the field of mechanical manufacturing, the processing machine plays an irreplaceable role in the places of material carrying, workpiece clamping and transferring, part processing, component assembly, main machine final assembly and the like. Nowadays, cranes are required to cooperate with crown cranes and lifting cranes, and various operations are accomplished by means of experience, and in the field of precision assembly, the distance in the vertical direction is more and more dwarfed by means of visual experience, and cranes capable of accurately mastering height values are urgently needed.
In the prior art, a device for detecting the height of a lifting hook is also provided, and chinese patent document CN 106185629 a describes a system for detecting the height of a lifting hook of a crawler crane and an implementation method thereof, wherein an angle encoder is used to detect the rotation of a winch to estimate the moving distance of a steel wire rope, as shown in fig. 1, the steel wire rope is wound on the winch in multiple layers, and the non-winding radius of each layer of the steel wire rope is determined by the structural characteristics of the steel wire rope, and when the steel wire ropes are not sequentially arranged during winding, the winding radius is calculated incorrectly, and the height data of the lifting hook correspondingly generates a large.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main objective is in order to solve: the steel wire rope wound on the winding drum has multiple layers, the rotating radius of each layer is increased due to the superposition of the steel wire rope, and when the moving distance of the steel wire rope is calculated, the critical point between the layers is not well defined, so that the current height of the lifting hook cannot be accurately obtained and displayed.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a hoist lifting hook height measurement device, it includes the dolly underframe, be equipped with the lifting motor base on the dolly underframe, be fixed with the lifting motor supporting seat on the lifting motor base, be equipped with the lifting motor who rotates the connection on the motor supporting seat, the lifting motor is fixed on reduction gears and is connected rather than the internal mechanism meshing, the last reel that the meshing is connected that still is fixed with of reduction gears, the reel rotates with the reel supporting seat to be connected, the reel supporting seat is fixed on the dolly underframe, still be equipped with the guide pulley supporting seat on the dolly underframe, there is the guide pulley of connecting of rotating on the guide pulley supporting seat, fixed angle encoder in the axis of rotation of guide pulley, the guide pulley passes through the pulley rotation with the.
The angle encoder is electrically connected with the microprocessor, and the microprocessor is electrically connected with the display unit.
The winding drum and the guide wheel are connected in a rotating mode through the steel wire rope, one end of the steel wire rope is fixed to the winding drum, the winding drum is provided with the wire grooves in a spiral arrangement mode, the steel wire rope is arranged on the winding drum in line with the wire grooves in the row mode, when the wire grooves in the first layer are full, the wire grooves are accumulated to the second layer and arranged, and the rotating axes of the winding drum and the guide wheel are parallel.
The guide wheel is rotatably connected with a pulley of the lifting hook through a steel wire rope, the lifting hook is positioned below the trolley bottom frame, the guide wheel is provided with a spiral wire groove, the steel wire rope is sequentially arranged on the spiral wire groove, the steel wire rope does not exceed one layer on the guide wheel, and the guide wheel is further provided with a plurality of through holes which are uniformly distributed and used for reducing the inertia of the guide wheel.
In a preferred scheme, the through hole of the guide wheel is connected with the rotating shaft of the guide wheel through a sliding groove, and the guide wheel can slide along with the change of the longitudinal position of the steel wire rope on the winding drum.
Still be equipped with the pivoted drive wheel on the above-mentioned dolly underframe, the drive wheel is located dolly guide rail top, and two drive wheels are a set of and connect through the pivot, and the dolly underframe can move on the guide rail, and dolly underframe both ends are equipped with the stopper.
The speed reducing mechanism is fixedly connected with the trolley bottom frame, the winding drum and the guide wheel are positioned on the same side of the speed reducing mechanism, the axis of the winding drum is vertical to the installation surface of the speed reducing mechanism, and the speed reducing mechanism is provided with a lubricating hole.
The lifting motor and the winding drum are connected through the reduction mechanism in a meshed mode, the two ends of the rotating shaft of the lifting motor are provided with curved surface hubs, the two ends of each curved surface hub are provided with brake pads, and the brake pads are driven by the hydraulic cylinders.
The microprocessor is electrically connected with the power supply module.
At the device during operation, the hoisting motor rotates, rotate through reduction gears drive reel, be fixed with the wire rope that links to each other with the lifting hook on the reel, thereby form the elevating movement of lifting hook, between lifting hook and reel, wire rope still twines no more than the one deck on the guide pulley, consequently, wire rope moves on the guide pulley apart from can regard as the distance that wire rope moved on the lifting hook pulley, this distance is the distance that the lifting hook moved on the vertical direction exactly with wire rope's multiplying power on the pulley, the moving distance that wire rope can be learnt through angle encoder record guide pulley rotation angle in two directions, thereby indirectly obtain the distance that the lifting hook goes up and down.
In the preferred scheme, the output of the angle encoder is a pulse signal, the pulse signal is converted into a digital signal by the signal collecting device and then is sent to the microprocessor for processing, and the current height of the lifting hook is calculated by a built-in formula and then is sent to the display unit.
The technical effects are as follows:
1) the utility model discloses can be directly perceived convenient high numerical value of reading current crane hook.
2) The utility model discloses a guide pulley is to wire rope's direction, and the guide pulley outer lane is the same with the wire rope displacement, detects the angle that the guide pulley rotated when measuring and the lifting hook downstream of crane hook highest position, and the wire rope length of putting down is known in the conversion, obtains the lifting hook height of implementing.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a prior art wire rope distribution profile on a spool;
FIG. 2 is a schematic view of a crane structure;
FIG. 3 is a schematic view of the lifting hook of the present invention;
fig. 4 is a flow chart of the operation of the apparatus.
In the figure: dolly underframe 1, lifting motor base 2, lifting motor supporting seat 3, lifting motor 4, reduction gears 5, reel 6, reel supporting seat 7, guide pulley supporting seat 8, guide pulley 9, angle encoder 10, lifting hook 11, microprocessor 12, display element 13, drive wheel 14, stopper 15, power module 16.
Detailed Description
As in fig. 2, 4, a hoist lifting hook height measuring device, it includes dolly underframe 1, be equipped with lifting motor base 2 on the dolly underframe 1, be fixed with lifting motor supporting seat 3 on the lifting motor base 2, be equipped with the lifting motor 4 of connecting of rotating on the motor supporting seat 3, lifting motor 4 fixes on reduction gears 5 and is connected rather than the internal mechanism meshing, the last reel 6 that the meshing is connected that still is fixed with of reduction gears 5, reel 6 rotates with reel supporting seat 7 to be connected, reel supporting seat 7 is fixed on dolly underframe 1, still be equipped with guide pulley supporting seat 8 on dolly underframe 1, there is the guide pulley 9 of connecting of rotating on the guide pulley supporting seat 8, guide pulley 9 passes through the pulley rotation with the lifting hook 11 of below and is connected, be fixed with angle encoder 10 in the axis of rotation of guide pulley 9.
The angle encoder 10 is electrically connected to a microprocessor 12, and the microprocessor 12 is electrically connected to a display unit 13.
As shown in fig. 2, the winding drum 6 and the guide wheel 9 are rotatably connected through a steel wire rope, one end of the steel wire rope is fixed on the winding drum 6, the winding drum 6 is provided with wire grooves which are spirally arranged, the steel wire ropes are sequentially arranged on the winding drum 6, after the wire grooves of the first layer are fully arranged, the steel wire ropes are accumulated to be arranged on the second layer, and the rotating axes of the winding drum 6 and the guide wheel 9 are parallel.
As shown in fig. 2, the guide wheel 9 is rotatably connected with the pulley of the hook 11 through a steel wire rope, the hook 11 is provided with a spiral wire slot, the steel wire rope is arranged on the guide wheel 9 according to the wire slot, the steel wire rope is not more than one layer of the hook 11 on the guide wheel 9 and is positioned below the trolley bottom frame 1, and the guide wheel 9 is provided with a plurality of through holes which are uniformly distributed and used for reducing the inertia of the guide wheel.
As shown in fig. 2, the cart bottom frame 1 is further provided with a set of rotating driving wheels 14, two driving wheels 14 are connected through a rotating shaft, the driving wheels 14 are located above the cart guide rail, and two ends of the cart bottom frame 1 are provided with limiting blocks 15.
As shown in fig. 2, the speed reducing mechanism 5 is fixedly connected with the trolley bottom frame 1, the winding drum 6 and the guide wheel 9 are positioned on the same side of the speed reducing mechanism 5, the axis of the winding drum is vertical to the mounting surface of the speed reducing mechanism 5, and the speed reducing mechanism 5 is provided with a lubricating hole.
As shown in fig. 2, the lifting motor 4 is engaged with the winding drum 6 through the speed reducing mechanism 5, the two ends of the rotating shaft of the lifting motor 4 are provided with curved hubs, and the two ends of the curved hubs are provided with brake pads which are driven by hydraulic cylinders.
As shown in fig. 4, the microprocessor 12 is electrically connected to the power supply module 16.
In a preferred scheme, the through hole of the guide wheel is connected with the rotating shaft of the guide wheel through a sliding groove, and the guide wheel can slide along with the change of the longitudinal position of the steel wire rope on the winding drum.
In a preferred embodiment, the angle encoder 10 is a commercially available angle encoder such as the ECN 225 angle encoder manufactured by HEIDENHAIN.
In a preferred embodiment, the power module 16 is a commercially available product, such as the 6EP1437-2BA20 power supply available from SIEMENS, Inc.
When the device is in operation, hoist motor 4 rotates, drive reel 6 through reduction gears 5 and rotate, be fixed with the wire rope that links to each other with lifting hook 11 on reel 6, thereby form the elevating movement of lifting hook, between lifting hook and reel, wire rope still twines no more than the one deck on the guide pulley, consequently wire rope moves the distance that can regard as wire rope to move on the lifting hook pulley on the guide pulley, this distance is exactly the distance that the lifting hook moved on the vertical direction with wire rope's multiplying power on the pulley, can learn wire rope's displacement through angle encoder record guide pulley rotation angle in two directions, thereby indirectly obtain the distance that the lifting hook goes up and down.
In the preferred embodiment shown in FIG. 2, when the hook 11 is in the extreme height position, the hook is now at the highest height H of the hook, which can be measured at this hook height by an infrared height measuring device;
when the hook 11 is lowered to the height h, the guide wheel 9 rotates by an angle a, and the height of the hook is:
wherein, N is the multiplying power of the steel wire rope on the lifting hook, and Lc is the moving distance of the steel wire rope at the lifting hook after the guide wheel 9 rotates a from the highest position.
Preferably, as shown in fig. 1, the number of rotation of the guide wheel 9 is equal to a total number of rotations a of the guide wheel 9 from the position at the highest height H of the hookIf the radius of the guide wheel 9 is r, the moving distance Lc of the wire rope at the hook is q × 2 pi r, and the height of the hook is obtainedIt can be seen that the height of the hook is at this time
In a preferred scheme, as shown in fig. 4, the output of the angle encoder 2 is a pulse signal, the pulse signal is converted into a digital signal by a signal collecting device and then sent to a microprocessor for processing, and the current height of the lifting hook is calculated by a built-in formula and then sent to a display unit.
Claims (8)
1. The utility model provides a hoist lifting hook height measurement device which characterized by: the lifting mechanism comprises a trolley bottom frame (1), a lifting motor base (2) is arranged on the trolley bottom frame (1), a lifting motor supporting seat (3) is fixed on the lifting motor base (2), a lifting motor (4) which is connected in a rotating mode is arranged on the motor supporting seat (3), the lifting motor (4) is fixed on a speed reducing mechanism (5) and is connected with an internal mechanism in a meshing mode, a winding drum (6) which is connected in a meshing mode is further fixed on the speed reducing mechanism (5), the winding drum (6) is connected with a winding drum supporting seat (7) in a rotating mode, the winding drum supporting seat (7) is fixed on the trolley bottom frame (1), still be equipped with guide pulley supporting seat (8) on dolly underframe (1), have guide pulley (9) that rotate to connect on guide pulley supporting seat (8), be fixed with angle encoder (10) in the axis of rotation of guide pulley (9), guide pulley (9) are connected through pulley rotation with lifting hook (11) of below.
2. A crane hook height measuring apparatus as claimed in claim 1, wherein: the angle encoder (10) is electrically connected with the microprocessor (12), and the microprocessor (12) is electrically connected with the display unit (13).
3. A crane hook height measuring apparatus as claimed in claim 1, wherein: the winding drum (6) is rotatably connected with the guide wheel (9) through a steel wire rope, one end of the steel wire rope is fixed on the winding drum (6), wire grooves which are arranged spirally are formed in the winding drum (6), the steel wire rope is sequentially arranged on the winding drum (6), and the rotating axes of the winding drum (6) and the guide wheel (9) are parallel.
4. A crane hook height measuring apparatus as claimed in claim 3, wherein: guide pulley (9) rotate through the pulley of wire rope with lifting hook (11) and be connected, be equipped with the spiral wire casing on lifting hook (11), wire rope arranges according to the wire casing on guide pulley (9), wire rope is no longer than one deck lifting hook (11) and is located the below of dolly underframe (1) on guide pulley (9), is equipped with a plurality of evenly distributed's through-hole on guide pulley (9).
5. A crane hook height measuring apparatus as claimed in claim 1, wherein: the trolley bottom frame (1) is further provided with rotating driving wheels (14), the two driving wheels (14) are in a group and connected through a rotating shaft, the driving wheels (14) are located above the trolley guide rails, and limiting blocks (15) are arranged at two ends of the trolley bottom frame (1).
6. A crane hook height measuring apparatus as claimed in claim 1, wherein: the speed reducing mechanism (5) is fixedly connected with the trolley bottom frame (1), the winding drum (6) and the guide wheel (9) are positioned on the same side of the speed reducing mechanism (5), and the axis of the winding drum is vertical to the mounting surface of the speed reducing mechanism (5).
7. A crane hook height measuring apparatus as claimed in claim 1, wherein: the lifting motor (4) is meshed with the winding drum (6) through the speed reducing mechanism (5), the two ends of the rotating shaft of the lifting motor (4) are provided with curved surface hubs, and the two ends of the curved surface hubs are provided with brake pads.
8. A crane hook height measuring apparatus as claimed in claim 2, wherein: the microprocessor (12) is electrically connected with the power supply module (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921431650.6U CN210505282U (en) | 2019-08-30 | 2019-08-30 | Height measuring device for crane hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921431650.6U CN210505282U (en) | 2019-08-30 | 2019-08-30 | Height measuring device for crane hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210505282U true CN210505282U (en) | 2020-05-12 |
Family
ID=70543934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921431650.6U Active CN210505282U (en) | 2019-08-30 | 2019-08-30 | Height measuring device for crane hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210505282U (en) |
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2019
- 2019-08-30 CN CN201921431650.6U patent/CN210505282U/en active Active
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