CN201196588Y - Electronic scale for loader - Google Patents
Electronic scale for loader Download PDFInfo
- Publication number
- CN201196588Y CN201196588Y CNU2008200766608U CN200820076660U CN201196588Y CN 201196588 Y CN201196588 Y CN 201196588Y CN U2008200766608 U CNU2008200766608 U CN U2008200766608U CN 200820076660 U CN200820076660 U CN 200820076660U CN 201196588 Y CN201196588 Y CN 201196588Y
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- CN
- China
- Prior art keywords
- loader
- shovel loader
- big arm
- angular transducer
- secondary instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses an electronic scale for a loader, belongs to a weighing and metering device, and solves the technical problems that the prior loader is limit in reliability and correction degree due to a plurality of proximity switches adopted and correction of weighing and metering errors by detection of the position of a dipper in a way of discontinuous points and that the proximity switches are susceptible to damages. The electronic scale comprises a big arm (1) of the loader, a hydraulic push rod (2), a pressure sensor (3), a secondary instrument (4) arranged in a cab of the loader, an angle sensor (7) fixed on the body of the loader, wherein the angle sensor (7) is connected with the secondary instrument (4), one end of a flexible shaft (6) is connected with one end of the big arm (1) of the loader, the other end of the flexible shaft (6) is connected with a mechanic input end of the angle sensor (7). The electronic scale has the advantages of simple structure, convenient maintenance, improvement on the weighing and metering accuracy.
Description
Technical field
The present invention relates to a kind of Weighing instrument, particularly a kind of shovel loader electronic weighing system.
Background technology
The shovel loader electronic scales generally all utilizes hydrostatic transmission to measure, this metering method be pack in the in-line of the boom cylinder on loading shovel measure liquid pressure pressure transducer in order to measure the transducing signal of contained quality on the scraper bowl, receive above-mentioned transducing signal and change, demonstrate contained quality by secondary instrument.This measuring method can be because the wearing and tearing of oil temperature, pollution, sealing gasket reach the dynamic factor that carries out Dynamic Weighting in advancing, and cause that measuring accuracy is not high, poor reliability and can't promoting.The Chinese invention patent application that on March 22nd, 2006, publication number was CN1749710 discloses a kind of position of bucket measuring switch group and computer automatic analysis control module that adopts lifting force cell group, forms near switch and the technical scheme that acceleration transducer is set on scraper bowl solves the not technical matters of high reliability difference of shovel loader electronic weighing system precision.But this scheme has following shortcoming: because it is near switch with several, revise the error of Weighing with the position of the form detection of dynamic scraper bowl of discontinuous point, the correction of error in dipping can not be in all directions each position the during load-carrying of real-time follow-up scraper bowl incessantly, this correction is science not, poor reliability, limited to the deflection difference that Weighing is worth partially, be installed on the workplace of load wagon near switch simultaneously, the probability of its damage is very big.
Summary of the invention
The technical problem to be solved in the present invention is: in prior art, with several near switch, revise the error of shovel loader electronic scale weighing metering with the position of the form detection of dynamic scraper bowl of discontinuous point, the correction of error in dipping can not be in all directions each position the during load-carrying of real-time follow-up scraper bowl incessantly, limited to the deflection difference that Weighing is worth partially, weighing precision is not high, on the workplace that is installed in shovel loader near switch simultaneously of the prior art, is easy to damage; Provide a kind of simple in structure, with low cost, under the loading shovel dynamic environment, can obtain the shovel loader electronic scales of higher weighing accuracy.
The present invention is achieved by the following technical programs:
The shovel loader electronic scales, comprise coupling shaft 5 between the big arm 1 of shovel loader, hydraulic push rod 2, pressure transducer 3, the big arm 1 of shovel loader and the shovel loader car body, at the secondary instrument 4 of the indoor setting of loader drive, on described shovel loader car body, be set with angular transducer 7, this angular transducer 7 is electrically connected with described secondary instrument 4, the big arm 1 of one end of flexible axle 6 and shovel loader links together, and the mechanical input end of the other end of flexible axle 6 and angular transducer 7 links together.
Described angular transducer 7 can be rotary encoder.
Described angular transducer 7 can be rotational potentiometer.
The shovel loader electronic scales, comprise the big arm 1 of shovel loader, hydraulic push rod 2, pressure transducer 3, coupling shaft 5 between big arm 1 of shovel loader and the shovel loader car body, secondary instrument 4 in the indoor setting of loader drive, on described shovel loader car body, be set with angular transducer 7, this angular transducer 7 is electrically connected with described secondary instrument 4, be set with brace 8 on the big arm 1 of shovel loader, one end of brace 8 is fixedlyed connected with the big arm 1 of shovel loader, the mechanical input end of the other end of brace 8 and angular transducer 7 links together, and the axis of the mechanical input end of the axis of coupling shaft 5 and angular transducer 7 point-blank.
The present invention is simple in structure, and is easy to maintenance, reduced the cost cost of metering outfit, improved the Weighing precision.
Description of drawings:
Fig. 1 is a structural representation of the present invention
Fig. 2 structural representation that to be the big arm of shovel loader of the present invention be connected by brace with angular transducer
Embodiment
The shovel loader electronic scales, comprise coupling shaft 5 between the big arm 1 of shovel loader, hydraulic push rod 2, pressure transducer 3, the big arm 1 of shovel loader and the shovel loader car body, at the secondary instrument 4 of the indoor setting of loader drive, on described shovel loader car body, be set with angular transducer 7, this angular transducer 7 is electrically connected with described secondary instrument 4, the big arm 1 of one end of flexible axle 6 and shovel loader links together, and the mechanical input end of the other end of flexible axle 6 and angular transducer 7 links together.When the big arm of shovel loader 1 drives scraper bowl and weight wherein and makes progress lifting, the big arm 1 of shovel loader will drive flexible axle 6 and rotate, the mechanical input end that flexible axle 6 drives angular transducer 7 again rotates, at this moment the electric signal of angular transducer 7 output will send the secondary instrument electric signal to, secondary instrument just can calculate the inclination angle of the big arm 1 of shovel loader according to the electric signal that transmits, just can the weighing-up wave that pressure transducer 3 transmits be compensated according to this inclination angle secondary instrument, thereby improve the Weighing precision.
The shovel loader electronic scales, comprise the big arm 1 of shovel loader, hydraulic push rod 2, pressure transducer 3, coupling shaft 5 between big arm 1 of shovel loader and the shovel loader car body, secondary instrument 4 in the indoor setting of loader drive, on described shovel loader car body, be set with angular transducer 7, this angular transducer 7 is electrically connected with described secondary instrument 4, be set with brace 8 on the big arm 1 of shovel loader, one end of brace 8 is fixedlyed connected with the big arm 1 of shovel loader, the mechanical input end of the other end of brace 8 and angular transducer 7 links together, and the axis of the mechanical input end of the axis of coupling shaft 5 and angular transducer 7 point-blank, thereby guarantee that the mechanical input end of angular transducer 7 only rotates and can not move when the big arm 1 of shovel loader makes progress lifting.When the big arm of shovel loader 1 drives scraper bowl and weight wherein and makes progress lifting, the big arm 1 of shovel loader will drive brace 8 and rotate, the mechanical input end that brace 8 drives angular transducer 7 again rotates, at this moment the electric signal of angular transducer 7 output will send the secondary instrument electric signal to, secondary instrument just can calculate the inclination angle of the big arm 1 of shovel loader according to the electric signal that transmits, just can the weighing-up wave that pressure transducer 3 transmits be compensated according to this inclination angle secondary instrument, thereby improve the Weighing precision.
Claims (4)
1. shovel loader electronic scales, comprise coupling shaft (5) between the big arm of shovel loader (1), hydraulic push rod (2), pressure transducer (3), the big arm of shovel loader (1) and the shovel loader car body, at the secondary instrument (4) of the indoor setting of loader drive, it is characterized in that, on described shovel loader car body, be set with angular transducer (7), this angular transducer (7) is electrically connected with described secondary instrument (4), one end of flexible axle (6) and the big arm of shovel loader (1) link together, and the mechanical input end of the other end of flexible axle (6) and angular transducer (7) links together.
2. a kind of shovel loader electronic scales according to claim 1 is characterized in that described angular transducer (7) is a rotary encoder.
3. a kind of shovel loader electronic scales according to claim 1 is characterized in that described angular transducer (7) is a rotational potentiometer.
4. shovel loader electronic scales, comprise the big arm of shovel loader (1), hydraulic push rod (2), pressure transducer (3), coupling shaft (5) between big arm of shovel loader (1) and the shovel loader car body, secondary instrument (4) in the indoor setting of loader drive, it is characterized in that, on described shovel loader car body, be set with angular transducer (7), this angular transducer (7) is electrically connected with described secondary instrument (4), be set with brace (8) on the big arm of shovel loader (1), one end of brace (8) is fixedlyed connected with big arm (1), the mechanical input end of the other end of brace (8) and angular transducer (7) links together, and the axis of the mechanical input end of the axis of coupling shaft (5) and angular transducer (7) point-blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200766608U CN201196588Y (en) | 2008-03-27 | 2008-03-27 | Electronic scale for loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200766608U CN201196588Y (en) | 2008-03-27 | 2008-03-27 | Electronic scale for loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196588Y true CN201196588Y (en) | 2009-02-18 |
Family
ID=40416223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200766608U Expired - Fee Related CN201196588Y (en) | 2008-03-27 | 2008-03-27 | Electronic scale for loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196588Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832810A (en) * | 2010-05-26 | 2010-09-15 | 杭州四方称重系统有限公司 | High-precision metering loading machine |
| CN103335696A (en) * | 2013-06-24 | 2013-10-02 | 中钢集团衡阳重机有限公司 | Dredger electric shovel weighing method |
-
2008
- 2008-03-27 CN CNU2008200766608U patent/CN201196588Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832810A (en) * | 2010-05-26 | 2010-09-15 | 杭州四方称重系统有限公司 | High-precision metering loading machine |
| CN101832810B (en) * | 2010-05-26 | 2012-05-23 | 杭州四方称重系统有限公司 | High-precision metering loading machine |
| CN103335696A (en) * | 2013-06-24 | 2013-10-02 | 中钢集团衡阳重机有限公司 | Dredger electric shovel weighing method |
| CN103335696B (en) * | 2013-06-24 | 2015-01-21 | 中钢集团衡阳重机有限公司 | Dredger electric shovel weighing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20140327 |