CN114018383B - Weighing system, scraper and weighing method - Google Patents
Weighing system, scraper and weighing method Download PDFInfo
- Publication number
- CN114018383B CN114018383B CN202110639964.0A CN202110639964A CN114018383B CN 114018383 B CN114018383 B CN 114018383B CN 202110639964 A CN202110639964 A CN 202110639964A CN 114018383 B CN114018383 B CN 114018383B
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- Prior art keywords
- weighing
- large arm
- place information
- controller
- bucket
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- 238000005303 weighing Methods 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/52—Weighing apparatus combined with other objects, e.g. furniture
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/425—Drive systems for dipper-arms, backhoes or the like
Abstract
The invention provides a weighing system, a scraper and a weighing method, and relates to the technical field of ore transportation equipment; the weighing sensor is arranged on the front rack; the reversing valve is arranged between a rod cavity and a rodless cavity of the large-arm oil cylinder; the large arm position sensor is used for acquiring first in-place information of the large arm and sending the first in-place information to the controller, and the controller is used for receiving the first in-place information and controlling the reversing valve to reverse, so that the rod cavity and the rodless cavity of the large arm oil cylinder are conducted to enable the large arm to be pressed on the weighing sensor. The weighing system provided by the invention gets rid of the traditional weighing mode of independently installing the weighing device in the roadway and adding the pressure transmitter in the lifting oil cylinder, has low installation and operation cost, high accuracy and simple operation, and can effectively improve the ore transportation efficiency.
Description
Technical Field
The invention relates to the technical field of ore transportation equipment, in particular to a weighing system, a scraper and a weighing method.
Background
The scraper is the main ore transportation equipment of underground metal mines, and the scraper is intelligent and is a necessary requirement for intelligent mine construction. The automatic ore weighing is realized in the process of scooping, so that the standard configuration of the intelligent scooptram is realized, the real-time performance is high, the robustness is strong, the precision is excellent, the scooptram weighing system is an important characteristic of the intelligent scooptram, and the real-time accurate weighing data is an important support for mine operation management.
The conventional scraper ore weighing mainly performs ore weighing by installing a ground balance underground, as shown in fig. 1, and fig. 1 is a schematic structural diagram of the scraper weighing through the ground balance in the prior art. There is also a principle that the original vehicle hydraulic system is modified, a pressure transmitter is added to an original vehicle lifting oil cylinder to weigh ores, as shown in fig. 2, and fig. 2 is a schematic diagram of the prior art that the pressure transmitter is added to weigh ores. The two weighing modes have obvious defects, and the underground balance ore weighing mode needs to be independently installed in a roadway, so that not only can installation cost and operation and maintenance cost be generated, but also the ore transportation efficiency can be influenced; the pressure transmitter is added on the original lifting cylinder of the vehicle, and is influenced by the proficiency of operators and the pose factors of the bucket, so that the accuracy is low and the reliability is poor.
Disclosure of Invention
The invention aims to provide a weighing system, a scraper and a weighing method, which have the advantages of low installation and operation cost, high accuracy and simple operation and can effectively improve the ore transportation efficiency.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, the invention provides a weighing system comprising a weighing sensor, a large arm position sensor, a reversing valve and a controller, wherein the large arm position sensor and the reversing valve are connected with the controller;
the weighing sensor is used for being arranged on the front rack;
the reversing valve is arranged between a rod cavity and a rodless cavity of the large arm oil cylinder;
the large arm position sensor is used for collecting first in-place information of the large arm and sending the first in-place information to the controller, and the controller is used for receiving the first in-place information and controlling the reversing valve to reverse, so that a rod cavity and a rodless cavity of the large arm oil cylinder are conducted to enable the large arm to be pressed on the weighing sensor.
Further, the reversing valve is an electromagnetic reversing valve.
Further, the boom position sensor is configured to be mounted on a boom.
Further, the system also comprises a bucket position sensor connected with the controller, wherein the bucket position sensor is used for acquiring second in-place information of the bucket and sending the second in-place information to the controller;
the controller is used for being connected with the large arm oil cylinder so as to control the large arm to lift according to the second in-place information.
Further, the bucket position sensor is for mounting on a bucket.
Further, the weighing sensor is arranged corresponding to the center line of the large arm.
The invention also provides a scraper, which comprises a front frame, a big arm oil cylinder and the weighing system according to the scheme;
the weighing sensor is arranged on the front rack;
the reversing valve is arranged between a rod cavity and a rodless cavity of the large arm oil cylinder.
The invention also provides a weighing method, which adopts the weighing system of the scheme, and comprises the following steps:
the large arm position sensor acquires first in-place information of a large arm and sends the first in-place information to the controller;
the controller receives the first in-place information and controls the reversing valve to reverse;
the load cell weighs the weight of the boom.
Further, before the big arm position sensor collects the first in-place information of the big arm and sends the first in-place information to the controller, the method further comprises:
collecting second in-place information of the bucket through the bucket position sensor and sending the second in-place information to the controller;
and the controller receives the second in-place information and controls the large arm to lift.
Further, after the load cell weighs the weight of the large arm, the method further comprises:
the weighing sensor sends the acquired weight information to a display.
The weighing system, the scraper and the weighing method provided by the invention have the following beneficial effects:
when the weighing system is used, after the bucket on the big arm finishes ore shoveling, after the big arm returns to the original position through a series of lifting operations, the big arm position sensor acquires first in-place information of the big arm and sends the first in-place information to the controller, the controller controls the reversing valve to reverse so that the rod cavity and the rodless cavity of the big arm oil cylinder are communicated, at the moment, the big arm oil cylinder is in a floating state, and the big arm is pressed on the weighing sensor, so that the weight of ore on the big arm can be obtained.
Compared with the prior art, the weighing system provided by the first aspect of the invention gets rid of the traditional weighing mode of independently installing the weighing device in the roadway and adding the pressure transmitter in the lifting oil cylinder, has low installation and operation cost, high accuracy and simple operation, and can effectively improve the ore transportation efficiency.
Compared with the prior art, the scraper provided by the second aspect of the invention is convenient for weighing the weight of the ore, has lower requirements on the operation proficiency of operators, accurate weighing result and high ore transportation efficiency.
Compared with the prior art, the weighing method provided by the third aspect of the invention has the advantages of low weighing cost, easiness in operation, difficulty in being influenced by the proficiency of operators, the pose of the bucket and other factors, high accuracy and high reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a prior art scraper weighing through a floor scale;
FIG. 2 is a schematic diagram of the prior art for adding a pressure transmitter to achieve ore weighing;
FIG. 3 is a schematic view of a portion of a scraper according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a connection relationship of a reversing valve according to an embodiment of the present invention;
fig. 5 is a schematic block diagram of a weighing system according to an embodiment of the present invention.
Icon: 1-underground balance; 2-a pressure transmitter; 3-a weighing sensor; 4-a large arm position sensor; 5-reversing valve; 6-a controller; 7-a front frame; 8-a large arm oil cylinder; 9-big arm; 10-bucket position sensor; 11-bucket; 12-tipping oil cylinders; 13-working valve group; 14-pilot handle valve.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection can be mechanical connection or connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
FIG. 1 is a schematic view of a prior art scraper weighing through a floor scale; FIG. 2 is a schematic diagram of the prior art for adding a pressure transmitter to achieve ore weighing; FIG. 3 is a schematic view of a portion of a scraper according to an embodiment of the present invention; FIG. 4 is a schematic diagram of a connection relationship of a reversing valve according to an embodiment of the present invention; fig. 5 is a schematic block diagram of a weighing system according to an embodiment of the present invention.
An embodiment of the first aspect of the present invention is to provide a weighing system, as shown in fig. 2 to 5, including a weighing sensor 3, a large arm position sensor 4, a reversing valve 5, and a controller 6, where the large arm position sensor 4 and the reversing valve 5 are connected to the controller 6;
the weighing sensor 3 is used for being mounted on the front frame 7;
the reversing valve 5 is arranged between a rod cavity and a rodless cavity of the large arm oil cylinder 8;
the big arm position sensor 4 is used for collecting first in-place information of the big arm 9 and sending the first in-place information to the controller 6, and the controller 6 is used for receiving the first in-place information and controlling the reversing valve 5 to reverse, so that a rod cavity and a rodless cavity of the big arm oil cylinder 8 are conducted to enable the big arm 9 to be pressed on the weighing sensor 3.
The weighing system provided by the embodiment of the first aspect of the invention does not need to independently install the ground balance 1 in a roadway or add the pressure transmitter 2 in the lifting oil cylinder, but externally arrange the weighing sensor 3, and the large arm 9 after the ore shoveling is completely pressed on the weighing sensor 3 on the front frame 7 through the cooperation of the large arm position sensor 4, the controller 6 and the reversing valve 5, so that the installation and operation costs are low, the accuracy is high, the operation is simple, and the ore transportation efficiency can be effectively improved.
The reversing valve 5 may be an electromagnetic reversing valve 5, a motor reversing valve, or the like.
In at least one embodiment, as shown in fig. 4, the reversing valve 5 is an electromagnetic reversing valve 5.
Taking fig. 4 as an example for specific explanation, when the large arm 9 needs to lift and descend, the oil inlet of the reversing valve 5 is not communicated with the oil outlet, and the large arm oil cylinder 8 and the tipping oil cylinder 12 work normally under the control of the working valve group 13 and the pilot handle valve 14; after the controller 6 receives the first in-place information, the controller 6 controls the reversing valve 5 to reverse, at the moment, the oil inlet and the oil outlet of the reversing valve 5 are communicated, so that the rod cavity and the rodless cavity of the large arm oil cylinder 8 are communicated, the large arm oil cylinder 8 is in a floating state, and the large arm 9 is completely pressed on the weighing sensor 3, so that the purpose of measuring the weight of ores is achieved.
In some embodiments, the boom position sensor 4 is for mounting on a boom 9.
Specifically, in the operation process, the bucket 11 is firstly used for shoveling ore, the bucket 11 is retracted after the shoveling is completed, then the large arm 9 is lifted, the scraper is retracted to a proper position, then the large arm 9 is lowered, when the large arm 9 is about to be contacted with the weighing sensor 3, namely, the large arm 9 reaches a preset position, the large arm position sensor 4 acquires first in-place information of the large arm 9 and sends the first in-place information to the controller 6, and the controller 6 controls the reversing valve 5 to reverse.
The large arm position sensor 4 may be an infrared displacement sensor, a laser displacement sensor, or the like.
In some embodiments, to ensure that the bucket 11 is retracted during weighing, the weighing system further includes a bucket position sensor 10 coupled to the controller 6, the bucket position sensor 10 being configured to collect second in-place information of the bucket 11 and send the second in-place information to the controller 6; the controller 6 is used for being connected with the boom cylinder 8 so as to control the boom 9 to lift according to the second in-place information.
The specific use process is as follows:
after the bucket 11 is completely loaded with ore, the bucket 11 is retracted, and when the bucket 11 is retracted, the bucket position sensor 10 acquires second in-place information of the bucket 11 and sends the second in-place information to the controller 6, and the controller 6 controls the boom 9 to lift.
In some embodiments, bucket position sensor 10 is configured to be mounted on bucket 11 to facilitate real-time monitoring of the position of bucket 11.
The bucket position sensor 10 may be an infrared displacement sensor, a laser displacement sensor, or the like.
In some embodiments, the load cell 3 is positioned corresponding to the centerline of the large arm 9. The arrangement enables the big arm 9 to be stably pressed on the weighing sensor 3 when the rod cavity and the rodless cavity of the big arm oil cylinder 8 are conducted.
An embodiment of the second aspect of the present invention is to provide a scraper, which includes a front frame 7, a large arm 9, a large arm cylinder 8, and the above-mentioned weighing system;
the weighing sensor 3 is arranged on the front frame 7;
the reversing valve 5 is installed between the rod cavity and the rodless cavity of the large arm cylinder 8.
The scraper provided by the embodiment of the second aspect of the invention is convenient for weighing the weight of the ore, has lower requirements on the operation proficiency of operators, accurate weighing result and high ore transportation efficiency.
In some embodiments, the aforementioned scraper further includes a bucket 11, and a bucket position sensor 10 is mounted on the bucket 11 to collect second in-place information of the bucket 11 and send it to the controller 6.
An embodiment of a third aspect of the present invention is to provide a weighing method, where the weighing method provided by the embodiment of the third aspect of the present invention includes:
the big arm position sensor 4 collects first in-place information of the big arm 9 and sends the first in-place information to the controller 6;
the controller 6 receives the first in-place information and controls the reversing valve 5 to reverse;
the load cell 3 weighs the weight of the large arm 9.
The weighing method provided by the embodiment of the third aspect of the invention has the advantages of low weighing cost, easiness in operation, difficulty in being influenced by the proficiency of operators, the pose of the bucket and other factors, high accuracy and high reliability.
In some embodiments, to ensure that bucket 11 is retracted during weighing, boom position sensor 4 is included before first in-place information for boom 9 is collected by and sent to controller 6, and second in-place information for bucket 11 is collected by bucket position sensor 10 and sent to controller 6; the controller 6 receives the second in-place information and controls the boom 9 to lift.
In some embodiments, after the load cell 3 weighs the weight of the large arm 9, it further comprises: the load cell 3 sends the acquired weight information to a display for the convenience of operator recording.
The weighing method provided by the embodiment of the third aspect of the present invention is described in detail below:
1. the bucket 11 performs ore shoveling;
2. after the shovel loading is completed, the bucket 11 is retracted;
3. until the bucket 11 is retracted, the bucket position sensor 10 collects second in-place information of the bucket 11 and sends the second in-place information to the controller 6, and the controller 6 controls the large arm 9 to lift;
4. the scraper retreats to a proper position;
5. the large arm 9 gradually descends until the large arm 9 is about to be contacted with the weighing sensor 3, the large arm position sensor 4 acquires first in-place information of the large arm 9 and sends the first in-place information to the controller 6, and the controller 6 controls the reversing valve 5 to reverse;
6. the large arm 9 is pressed on the weighing sensor 3, and the weighing sensor 3 performs weighing.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (3)
1. A method of weighing comprising:
the large arm position sensor (4) collects first in-place information of the large arm (9) and sends the first in-place information to the controller (6);
the controller (6) receives the first in-place information and controls the reversing valve (5) to reverse so that a rod cavity and a rodless cavity of the large arm oil cylinder are communicated, the large arm oil cylinder is in a floating state at the moment, and the large arm (9) is pressed on the weighing sensor (3);
the weighing sensor (3) weighs the weight of the large arm (9) to obtain the weight of the ore on the large arm (9).
2. The weighing method according to claim 1, characterized in that before the boom position sensor (4) collects the first in-place information of the boom (9) and sends it to the controller (6), it further comprises:
collecting second in-place information of the bucket (11) through the bucket position sensor (10) and sending the second in-place information to the controller (6);
the controller (6) receives the second in-place information and controls the lifting of the large arm (9).
3. The weighing method according to claim 1, characterized in that after the weighing of the weight of the large arm (9) by the load cell (3), it further comprises:
the weighing sensor (3) sends the acquired weight information to a display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110639964.0A CN114018383B (en) | 2021-06-08 | 2021-06-08 | Weighing system, scraper and weighing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110639964.0A CN114018383B (en) | 2021-06-08 | 2021-06-08 | Weighing system, scraper and weighing method |
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| Publication Number | Publication Date |
|---|---|
| CN114018383A CN114018383A (en) | 2022-02-08 |
| CN114018383B true CN114018383B (en) | 2024-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110639964.0A Active CN114018383B (en) | 2021-06-08 | 2021-06-08 | Weighing system, scraper and weighing method |
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| CN (1) | CN114018383B (en) |
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| CN106052829A (en) * | 2016-08-22 | 2016-10-26 | 厦门海普智能科技有限公司 | Fork loading truck automatic weighing system and weighing method |
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| CN111120432A (en) * | 2020-03-05 | 2020-05-08 | 徐州徐工基础工程机械有限公司 | Rotary partition constant-pressure control system and method and tunnel cleaning robot |
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| US7858888B2 (en) * | 2007-10-31 | 2010-12-28 | Halliburton Energy Services, Inc. | Methods and systems for metering and monitoring material usage |
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| US4839835A (en) * | 1984-04-27 | 1989-06-13 | Hagenbuch Roy George Le | Apparatus and method responsive to the on-board measuring of the load carried by a truck body |
| US4839835B1 (en) * | 1984-04-27 | 1994-01-25 | G. Hagenbuch Leroy | |
| CN2467479Y (en) * | 2000-12-11 | 2001-12-26 | 福州铁路分局货运分处 | Loader with intelligent dynamic weight-measuring equipment |
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|---|---|
| CN114018383A (en) | 2022-02-08 |
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