CN101244790B - Mechanical weighing mechanism of gantry crane dynamic grab bucket electronic weighing scale - Google Patents
Mechanical weighing mechanism of gantry crane dynamic grab bucket electronic weighing scale Download PDFInfo
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- CN101244790B CN101244790B CN200810054698XA CN200810054698A CN101244790B CN 101244790 B CN101244790 B CN 101244790B CN 200810054698X A CN200810054698X A CN 200810054698XA CN 200810054698 A CN200810054698 A CN 200810054698A CN 101244790 B CN101244790 B CN 101244790B
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Abstract
The invention relates to a mechanical weighting mechanism of the electronic scale of dynamic grabbing bucket of the gantry crane, belonging to the technical field of weighting devices, wherein the pivot brackets of the transmission shaft of the major-minor hook wound rolls of the door machine are respectively connected with the bearing support and then are press-arranged on the upper surface of the flat sensor. The flat sensor is fixed on the underframe of the door machine room by a holder base. A wheel rib load cell is arranged at the lower terminal of the load limiter of the door mechanical structure, and the major weighting mechanism comprises the wheel rib load cell and the flat sensor. The mechanical weighting mechanism also comprises an automatic counting mechanism used for the weighing compensation of the amplitude modulation of the electronic scale of the grabbing bucket of the door machine and for the automatic counting mechanism of the speed testing, the high weighing compensation testing of the electronic scale of the grabbing bucket of the door machine. The mechanical weighting mechanism of the electronic scale of dynamic grabbing bucket of the gantry crane has the advantages that the problems of measure accuracy lost and extremely big repeated error of the prior art are solved, and the weighting mechanism has rapid, accurate, stable and reliable measure, the cost is saved for the harbor, and the work efficiency and the economic benefit of loading and unloading are improved.
Description
Technical field
The invention belongs to weighting apparatus, be meant a kind of mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales especially.
Background technology
The patent No. is in 200720100801.0 the utility model patent, disclose a kind of Weighing mechanism of improved grab type electronic scales, comprised the flat sensor of the major and minor hook reel transmission shaft other end axle supporting base centre that is installed on the crane in bridge type crane carriage and be connected in series the stacked holistic weighting apparatus that is respectively with bearing seat, supporting base with its upper and lower surface.Above-mentioned prior art is applied on the high pedestal jib crane of harbour, exists metering misalignment and the great shortcoming of repeatability error that metering conformability difference and gross error that variation, rotation and the situations such as boom angle variation, lifting velocity variation of machine arm range when operation cause are caused.
Summary of the invention
The object of the present invention is to provide the mechanical Weighing mechanism of the less high pedestal jib crane dynamic grab bucket electronic scales of a kind of weighing numerical error.
Overall technology design of the present invention is:
The mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales, wherein the spindle nose of the transmission shaft of the major and minor hook reel 1,2 of door machine press-fits in flat sensor 5,6 upper surfaces respectively with after bearing seat 3,4 is connected, flat sensor 5,6 is fixed on the underframe 12 of a machine room through supporting base 7,8, the bottom of door machine physical construction formula load suppression gear 13 is equipped with radial LOAD CELLS 14, and it and flat panel sensor 5,6 have been formed Trinitarian main Weighing mechanism.
Be used for an automatic counting mechanism of machine grab bucket electronic scales amplitude modulation weighing compensation, comprise the counting machine framework 29,30, the magnetic control head 31 and magnet piece 32 that are installed on the machine luffing mechanism 27,28.
Be used for machine grab bucket electronic scales and test the speed, survey the automatic counting mechanism of high weighing compensation, comprise on the circular end surface that is installed on major and minor hook reel 1,2 and counter-support 20,21, magnetic control head 22,23 and the magnet piece 24 at bearing seat 3,4 tops.
Concrete structure design of the present invention also has:
Flat sensor 5,6 is including, but not limited to adopting following fit: flat sensor 5,6 is assemblied in the middle part of bearing support of spindle nose of the transmission shaft of the major and minor hook reel 1,2 in the machine machine room respectively, and the upper and lower surface of flat panel sensor 5,6 is connected in series stacked as a whole with bearing seat 3,4, supporting base 7,8 respectively successively.
Wherein, the preferred fit mode of flat sensor 5,6 is: be bolted to connection between the centre of bearing seat 3,4 and the flat sensor 5,6, flat sensor 5,6 and supporting base 7,8 are captiveed joint by bolt 10, and supporting base 7,8 is separately fixed on the machine room underframe 12 by bolt 11.
Wherein, radial LOAD CELLS 14 preferred fit are: the upper surface screw thread fit of radial LOAD CELLS 14 has wooden fork shape 16, and this wooden fork shape 16 is connected to an integral body with the lower end of the compressed spring type machinery cylindrical shell of door machine physical construction formula load suppression gear 13 by bearing pin 17 cross-under.The lower surface of radial LOAD CELLS 14 is fixed on the bottom of framed structure 15 through bolt 18.
For preventing that flat sensor 5,6 is under improper serious over burdening situation, the situation that may be damaged and rupture, also comprise machine security protection mechanism 37,38, machine security protection mechanism 37,38 its bottoms are fixed on the central former of supporting base 7,8 by bearing pin 39,40 cross-under, and its middle and lower part is fixed through the both sides of screw 41,42 and axle supporting base 7,8 upper panel.The cap head plate 43,44 on machine security protection mechanism 37,38 tops is arranged at intervals at bearing seat 3,4 upper surfaces.
Counting machine magnet piece 32 is uniformly-spaced uniform to be fixed on the displacement spur rack plate of a machine luffing mechanism 28, and its fixed form preferably adopts screw retention.
Wherein counter-support 20,21 and magnetic control head 22,23 preferred fit are:
The top at bearing seat 3, the 4 perpendicular line centers of counter-support 20,21 through being bolted to major and minor hook reel 1,2, magnetic control head 22,23 is adjusted on the sliding tray of plate through being bolted to counter-support.
The present invention is work like this:
The principle of work of main Weighing mechanism is: when the grab bucket of seat type lifting is fallen on the stockpile in the decline process, and operate when digging material and rising grab bucket, material in the grab bucket is load, major-minor cable drum 1, the tension that 2 left-hand revolutions rise grab bucket to be produced is at two flat sensors 5, on 6, and this pulling force through two pulley drivies to the major axis of mechanical load killer 13, long-armed compression spring is delivered to pulling force on the spoke formula LOAD CELLS 14, thereby make these three force gauge loads produce three electric signal with the pulling force proportion relation, comprehensive and these three electric signal (simulation volume) of balance are through amplification, A/D conversion has produced the gravimetric value that is directly proportional with weight, the trinity weighing principle of Here it is high pedestal jib crane grab bucket dynamic electronic scale.Because of its mechanical signal converts electric signal to and is shown, is controlled to be routine techniques, so do not repeat them here by instrument.
Being used for a principle of work of the automatic counting mechanism of machine grab bucket electronic scales amplitude modulation weighing compensation is: the door machine is when the cargo ship of the different tonnages of loading and unloading, carrying out luffing (distance) telescoping boom can operation, carry out displacement at length direction, also promptly changed the length and the angle of arm 33,34,35.When long arm of force operation, all than much bigger when the short arm of force operation, this has just caused the serious misalignment of grab bucket load for grab bucket load and friction force that steel rope produced.In order to eliminate this gross error, the contactless automatic counting mechanism of a cover has been installed on door machine luffing mechanism 27,28.Because the distance that spur rack stretched in the luffing mechanism 28 exists certain proportionate relationship with the distance of the length direction of hoisting arm expansion, as 1: 5, promptly spur rack was released 1m, and the distance that arm stretches is 5m.Therefore on the disc of spur rack, press the uniform magnet piece of certain spacing, just can calculate the actual length distance that arm stretches or shrinks by computing machine or other control setup by the detection to magnet piece quantity in spur rack push-and-pull process of magnetic control head, thereby can carry out automatic compensation to this displacement, the load true loading under the long and angle at different arms of guaranteeing to grab bucket reaches certain accuracy of measuring.Because related display instrument and the circuit of this control setup is routine techniques, do not repeat them here.
Being used for the principle of work that machine grab bucket electronic scales tested the speed, surveyed the automatic counting mechanism of high weighing compensation is: when major- minor cable drum 1,2 anticlockwise directions rotate, the grab bucket load is upwards promoted by low side, acceleration due to gravity of loading in the process that grab bucket is risen and steel rope all are variablees through friction force that a plurality of pulley produced etc., these variablees should be distinguished and be rejected with the true value of grab bucket load, can draw the actual weight value of grab bucket load.By being installed in major- minor cable drum 1,2 with bearing seat 3, on 4 the two contactless automatic counting mechanism of cover just can automatically detect the speed that 2 steel ropes rise, and determine the residing height and position of grab bucket load by counting machine, thereby can output to and calculating the friction force that the acceleration due to gravity that produced when grab bucket load rises and each bar steel rope are produced in the control setup, in the decline process, the gross weight of grab bucket and steel rope generation is removed the peel the heavily low side zero setting point position height L of (zero setting) after can accurately determining the high-end sampling point position height H of grab bucket load and determine the grab bucket blowing by count value simultaneously, H, the L point is in case selected, in whole grab bucket operation process, the automatic counting mechanism of this two cover just can carry out autocontrol operation by main program.Because related display instrument and the circuit of this control setup is routine techniques, do not repeat them here.
Substantive distinguishing features that the present invention is obtained and significant technological advance are:
It has solved gate seat that prior art exists and has been hung in the operation of stevedoring ship grab bucket in different gears (speed), different ranges (luffing) and the rotation of arm under different angles, caused weighing numerical value instability under the randomness operational circumstances that rises or descend, the technical barrier that inconsistent gross error and repeatability error are big, to have set up an accurate measurement rapid for numerous domestic harbour general-duty high pedestal jib crane, and reliable and stable Weighing equipment, for having saved a large amount of manpowers that the loading and unloading ship time uses many heavy-load automobiles and large-tonnage weighbridge to be paid in order to the gross weight value that could determine the loading and unloading ship after large bulk cargo being carried out Weighing and transporting in most of harbours, material resources and high cost, save the cost expenditure for the harbour, improved dress, work efficiency of unloading a ship and economic benefit.
Description of drawings
Accompanying drawing of the present invention has:
Fig. 1 is an integral structure scheme drawing of the present invention.
Fig. 2 is the mounting structure scheme drawing of radial LOAD CELLS.
Fig. 3 is the scheme drawing of machine security fail-safe structure.
Fig. 4 is used for an automatic counting mechanism structural representation of machine grab bucket electronic scales amplitude modulation weighing compensation.
Fig. 5 is used for a machine grab bucket electronic scales to test the speed, survey the automatic counting mechanism constructional drawing of high weighing compensation.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described, but not as limitation of the invention further.
The overall technology structure of present embodiment as shown, wherein the spindle nose of the transmission shaft of the major and minor hook reel 1,2 of door machine press-fits in flat sensor 5,6 upper surfaces respectively with after bearing seat 3,4 is connected, flat sensor 5,6 is fixed on the underframe 12 of a machine room through supporting base 7,8, the bottom of door machine physical construction formula load suppression gear 13 is equipped with radial LOAD CELLS 14, and it and flat panel sensor 5,6 have been formed Trinitarian main Weighing mechanism.
Be used for an automatic counting mechanism of machine grab bucket electronic scales amplitude modulation weighing compensation, comprise the counting machine framework 29,30, the magnetic control head 31 and magnet piece 32 that are installed on the machine luffing mechanism 27,28.
Be used for machine grab bucket electronic scales and test the speed, survey the automatic counting mechanism of high weighing compensation, comprise on the circular end surface that is installed on major and minor hook reel 1,2 and counter-support 20,21, magnetic control head 22,23 and the magnet piece 24 at bearing seat 3,4 tops.
Wherein the concrete structure and the assembly relation of each mechanism are:
Flat sensor 5,6 is assemblied in the middle part of bearing support of spindle nose of the transmission shaft of the major and minor hook reel 1,2 in the machine machine room respectively, and the upper and lower surface of flat panel sensor 5,6 is connected in series stacked as a whole with bearing seat 3,4, supporting base 7,8 respectively successively.
Between the centre of bearing seat 3,4 and the flat sensor 5,6, be bolted to connection, flat sensor 5,6 and supporting base 7,8 are captiveed joint by bolt 10, and supporting base 7,8 is separately fixed on the machine room underframe 12 by bolt 11.
The fit of radial LOAD CELLS 14: the upper surface screw thread fit of radial LOAD CELLS 14 has wooden fork shape 16, and this wooden fork shape 16 is connected to an integral body with the lower end of the compressed spring type machinery cylindrical shell of door machine physical construction formula load suppression gear 13 by bearing pin 17 cross-under.The lower surface of radial LOAD CELLS 14 is fixed on the bottom of framed structure 15 through bolt 18.
Machine security protection mechanism 37,38 its bottoms are fixed on the central former of supporting base 7,8 by bearing pin 39,40 cross-under, and its middle and lower part is fixed through the both sides of screw 41,42 and axle supporting base 7,8 upper panel.The cap head plate 43,44 on machine security protection mechanism 37,38 tops is arranged at intervals at bearing seat 3,4 upper surfaces.
Counting machine magnet piece 32 is uniformly-spaced uniform to be fixed on the displacement spur rack plate of a machine luffing mechanism 28, and its fixed form preferably adopts screw retention.
The top at bearing seat 3, the 4 perpendicular line centers of counter-support 20,21 through being bolted to major and minor hook reel 1,2, magnetic control head 22,23 is adjusted on the sliding tray of plate through being bolted to counter-support.
Claims (12)
1. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales, wherein the spindle nose of door machine main hook winch drum (1) transmission shaft with press-fit in flat sensors A (5) upper surface after bearing seat A (3) is connected, the spindle nose of door machine auxiliary hook reel (2) transmission shaft with press-fit upper surface after bearing seat B (4) is connected in flat sensor B (6), it is characterized in that it also comprises following structure:
A, flat sensors A (5) are fixed on the underframe (12) of a machine room through supporting base A (7), flat sensor B (6) is fixed on the underframe (12) of a machine room through supporting base B (8), the bottom of door machine physical construction formula load suppression gear (13) is equipped with radial LOAD CELLS (14), and it and flat sensors A (5) and flat sensor B (6) have formed main Weighing mechanism;
B, be used for the automatic counting mechanism of machine grab bucket electronic scales amplitude modulation weighing compensation, comprise the counting machine framework A (29), the counting machine framework B (30) that are installed on the machine luffing mechanism A (27), be installed on magnetic control head C (31), counting machine magnet piece (32) on the machine luffing mechanism B (28);
C, be used for machine grab bucket electronic scales and test the speed, survey the automatic counting mechanism of high weighing compensation, comprise on the circular end surface that is installed on main hook winch drum (1) and counter-support A (20), the magnetic control head A (22) and magnet piece (24) at bearing seat A (3) top; Be installed on the circular end surface of auxiliary hook reel (2) and counter-support B (21), the magnetic control head B (23) at bearing seat B (4) top and magnet piece (24).
2. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales according to claim 1, it is characterized in that described flat sensors A (5) is assemblied in the middle part of bearing support of spindle nose of the transmission shaft of the main hook winch drum (1) in the machine machine room, flat sensor B (6) is assemblied in the middle part of bearing support of spindle nose of the transmission shaft of the auxiliary hook reel (2) in the machine machine room; The upper and lower surface of flat sensors A (5) is connected in series stacked as a whole respectively with bearing seat A (3), supporting base A (7), the upper and lower surface of flat sensor B (6) is connected in series stacked as a whole with bearing seat B (4), supporting base B (8) respectively.
3. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales according to claim 2 is characterized in that being bolted to connection between the centre of the centre of described bearing seat A (3) and flat sensors A (5) and bearing seat B (4) and the flat sensor B (6); Captive joint by bolt (10) between flat sensors A (5) and supporting base A (7) and flat sensor B (6) and the supporting base B (8), supporting base A (7), supporting base B (8) are separately fixed on the underframe (12) of a machine room by bolt (11).
4. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales according to claim 1, it is characterized in that the bottom of compressed spring type machinery cylindrical shell that described radial LOAD CELLS (14) is coupled to a machine physical construction formula load suppression gear (13) is bottom framed structure (15) between.
5. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales according to claim 4, the upper surface screw thread fit that it is characterized in that described radial LOAD CELLS (14) the shape head (16) of having the right, this Quan Xingtou (16) is connected to an integral body with the lower end of the compressed spring type machinery cylindrical shell of door machine physical construction formula load suppression gear (13) by bearing pin (17) cross-under.
6. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales according to claim 4 is characterized in that the lower surface of described radial LOAD CELLS (14) is fixed on the bottom of framed structure (15) through bolt (18).
7. according to the mechanical Weighing mechanism of claim 1,2 or 3 described high pedestal jib crane dynamic grab bucket electronic scaless, also comprise machine security protection mechanism A (37), machine security protection mechanism B (38), the bottom of machine security protection mechanism A (37) is fixed on the central former of supporting base A (7) by bearing pin A (39) cross-under, and its middle and lower part is fixed with the both sides of supporting base A (7) upper panel through screw A (41); The bottom of machine security protection mechanism B (38) is fixed on the central former of supporting base B (8) by bearing pin B (40) cross-under, and its middle and lower part is fixed with the both sides of supporting base B (8) upper panel through screw B (42).
8. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales according to claim 7 is characterized in that the cap head plate A (43) on described machine security protection mechanism A (37) top is arranged at intervals at bearing seat A (3) upper surface; The cap head plate B (44) on machine security protection mechanism B (38) top is arranged at intervals at bearing seat B (4) upper surface.
9. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales according to claim 1, it is characterized in that described counter-support A (20) is fixed on the top at bearing seat A (3) the perpendicular line center of main hook, magnetic control head A (22) connects at counter-support A (20) and adjusts on the sliding tray of plate; Counter-support B (21) is fixed on the top at bearing seat B (4) the perpendicular line center of auxiliary hook, and magnetic control head B (23) connects at counter-support B (21) and adjusts on the sliding tray of plate.
10. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales according to claim 1 is characterized in that described magnet piece (24) is riveted on the circular end surface of main hook winch drum (1), auxiliary hook reel (2) through the packaging aluminium box.
11. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales according to claim 1, it is characterized in that described counting machine framework A (29) is fixed on the centre of machine luffing mechanism A (27), counting machine framework B (30) is fixed on by chute on the counting machine framework A (29) through bolt (36), and magnetic control head C (31) is fixed on the bottom of counting machine framework B (30).
12. the mechanical Weighing mechanism of high pedestal jib crane dynamic grab bucket electronic scales according to claim 1 is characterized in that on the uniformly-spaced uniform displacement spur rack plate that is fixed on a machine luffing mechanism B (28) of described counting machine magnet piece (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054698XA CN101244790B (en) | 2008-03-27 | 2008-03-27 | Mechanical weighing mechanism of gantry crane dynamic grab bucket electronic weighing scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054698XA CN101244790B (en) | 2008-03-27 | 2008-03-27 | Mechanical weighing mechanism of gantry crane dynamic grab bucket electronic weighing scale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101244790A CN101244790A (en) | 2008-08-20 |
| CN101244790B true CN101244790B (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810054698XA Expired - Fee Related CN101244790B (en) | 2008-03-27 | 2008-03-27 | Mechanical weighing mechanism of gantry crane dynamic grab bucket electronic weighing scale |
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| Country | Link |
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| CN (1) | CN101244790B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444771A (en) * | 2014-11-03 | 2015-03-25 | 无锡市百顺机械厂 | Lifting tool |
| CN112794168B (en) * | 2019-11-14 | 2022-09-09 | 上海梅山钢铁股份有限公司 | Replacement device for grab bucket steel wire rope of bridge type grab bucket ship unloader |
| CN113816274A (en) * | 2021-10-28 | 2021-12-21 | 蚌埠高灵传感系统工程有限公司 | Tower crane overload control device detected by wheel load sensor |
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2008
- 2008-03-27 CN CN200810054698XA patent/CN101244790B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101244790A (en) | 2008-08-20 |
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Effective date of registration: 20170519 Address after: 050091 Hebei province Shijiazhuang City Xinshi North Road, No. 368 building, room 614, innovation Patentee after: Shijiazhuang Ze Technology Co., Ltd. Address before: 050091 Hebei province Shijiazhuang City Xinshi North Road, No. 368 building 613 room Yitong company innovation Patentee before: Shijiazhuang Development Zone Yitong Technology Co., Ltd. |
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Granted publication date: 20110420 Termination date: 20200327 |
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