CN110553704A - Hanging scale and weighing structure and weighing method thereof - Google Patents
Hanging scale and weighing structure and weighing method thereof Download PDFInfo
- Publication number
- CN110553704A CN110553704A CN201810553168.3A CN201810553168A CN110553704A CN 110553704 A CN110553704 A CN 110553704A CN 201810553168 A CN201810553168 A CN 201810553168A CN 110553704 A CN110553704 A CN 110553704A
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- weighing
- hanging scale
- hanging
- scale
- grab bucket
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- 238000005303 weighing Methods 0.000 title claims description 61
- 238000000034 method Methods 0.000 title claims description 12
- 230000001681 protective effect Effects 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000004364 calculation method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012067 mathematical method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a hanging scale, comprising: the rotary connecting fork and the fixed connecting fork are respectively arranged at the opposite sides of the outside of the protective shell; the sensor assembly is arranged inside the protective shell, and two ends of the sensor assembly are respectively connected with the rotary connecting fork and the fixed connecting fork. The hanging scale can be used as an independent component, and the hanging scale can work normally when inverted up and down, so that the hanging scale is convenient to install. The hanging scale has simple structure and low cost, and is convenient to produce and manufacture; the hanging scale is arranged above the grab bucket, so that the normal work of the grab bucket is not influenced; in addition, the invention utilizes a simple calculation method to calculate the weight of the object, and the software is easy to realize.
Description
Technical Field
The invention relates to the field of metering equipment, in particular to a hanging scale for a grab bucket.
Background
The hanging scale is a weighing apparatus for weighing a weighed object in a suspended state, generally a hanging scale, adopts a modular structure, and consists of a scale body and a weighing display instrument. The weight information is sent by a transmitting device in the scale body and is received, processed and displayed by the weighing display instrument. The hanging scale has the characteristics of high precision, short reading stabilization time, complete functions, stability, reliability, firmness, durability, convenience in use and maintenance and the like.
The hanging scale is widely applied to the fields of ports and docks, building material markets, storage, coal and industrial and mining enterprises and the like, such as cargo handling metering, process flow metering, raw material in-out metering and warehouse stock metering, and is particularly suitable for weighing applications of metal heavy load use, high-frequency and high-strength workshop material transfer, material in-out settlement, cost control, process flow and the like of domestic industrial and mining enterprises.
However, with the development of ports, corresponding problems are more and more exposed, and the hook scales which are used more at present cannot be directly applied to the grab bucket due to the large weight and the complex structure; at present, no crane scale is applied to the grab bucket, so when the grab bucket works, an object is weighed in addition, and then the object is transferred to a corresponding position after being grabbed by the grab bucket. Therefore, the work steps are more, the efficiency is not high, weighing equipment needs to be additionally configured, the work space is occupied, and the large-area popularization in the field is not facilitated.
Disclosure of Invention
The invention aims to provide a hanging scale which can ensure the normal work of the hanging scale when a grab bucket works, can realize single-point and multi-point weighing, and has the advantages of simple structure, low cost and convenient installation.
The invention provides a hanging scale, comprising: the rotary connecting fork and the fixed connecting fork are respectively arranged at the opposite sides of the outside of the protective shell; the sensor assembly is arranged inside the protective shell, and two ends of the sensor assembly are respectively connected with the rotary connecting fork and the fixed connecting fork.
Further, the sensor assembly includes: the two ends of the pull-type weighing sensor are respectively connected with the rotary connecting fork and the fixed connecting fork, the pin shaft penetrates through a connecting hole of the pull-type weighing sensor and a hole of the protection plate, and the joint bearing is installed on the pin shaft.
The hanging scale disclosed by the invention is simple in structure, convenient to produce and manufacture and low in cost, and the problem that steel wires of the grab bucket wind the grab bucket hanging scale is solved by using the rotary connecting fork, so that the weighing process is not influenced by external force.
Furthermore, a groove is respectively arranged on the other opposite sides of the protective shell, and the wireless module and the battery are respectively installed on the grooves.
Further, the protective casing further comprises a cover plate which is respectively arranged on the surfaces of the wireless module and the battery.
In the invention, the wireless module is used for transmitting the weighing value of the pull-type weighing sensor to the display instrument, the display instrument is used for calculating and displaying, an operator only needs to observe the instrument, and the replaceable battery is used, so that the use efficiency of the hanging scale is improved; the cover plate prevents dust from entering the interior of the protective housing, thereby protecting the components.
Furthermore, a limiting plate is arranged at the connecting part of the protective shell and the rotary connecting fork.
According to the invention, the limiting plate is utilized to reduce the swing amplitude of the sensor assembly when the object grabbed by the grab bucket shakes.
Further, the other opposite side surface of the protective case has a mounting hole which coincides with a center line of the coupling hole of the load cell.
According to the invention, the center lines of the mounting hole and the connecting hole of the weighing sensor are overlapped, so that the position of the pull type weighing sensor is fixed. In addition, the cover plate is arranged on the surface of the mounting hole, so that dust can be prevented from entering the protective shell, and all parts in the protective shell are protected.
The invention also provides a weighing structure, which applies at least 1 crane scale as above, comprising: the grab bucket is connected with one end of the hanging scale, and the winding drum is connected with the other end of the hanging scale through a steel wire rope.
Furthermore, the grab bucket can be connected with the winding drum through another steel wire rope.
The weighing structure is convenient to install, the crane scale does not influence the normal work of the grab bucket, the single-point or multi-point installation of the crane scale is realized, and the weighing is more accurate when a plurality of crane scales are utilized. In addition, in the structure of weighing, no matter the swivelling joint fork of hanging oneself from a steelyard is last or under, the hanging oneself from a steelyard can both normally work for it is more convenient when installing the hanging oneself from a steelyard.
The invention also provides a weighing method which is applied to the weighing structure, and the weight of the object grabbed by the grab bucket is the average value of the weighing values of the crane scale multiplied by the number of the steel wire ropes.
Further, when the weighing structure only has 1 hanging scale, the weight of the object grabbed by the grab bucket is the weighing value of the hanging scale multiplied by the number of the steel wire ropes.
According to the weighing method, when the hanging scale is installed in a single point, the weight of an object grabbed by the grab bucket is calculated through multiplying power; when the hoist scales are installed at multiple points, the weight of the object gripped by the grab bucket is calculated by the average value of all the hoist scales, and in order to make the calculation more accurate, the weight of the object may also be calculated using a mathematical method including variance and the like.
The hanging scale can be used as an independent component, and the hanging scale can work normally when inverted up and down, so that the hanging scale is convenient to install. The hanging scale has simple structure and low cost, and is convenient to produce and manufacture; the hanging scale is arranged above the grab bucket, so that the normal work of the grab bucket is not influenced; the protective plate in the hanging scale can prevent the falling caused by the breakage of the pull-type weighing sensor, thereby avoiding the falling of the grab bucket; the rotary connection fork in the hanging scale avoids the influence of steel wire winding on weighing in the working process of the hanging scale. In addition, the invention utilizes a simple calculation method to calculate the weight of the object, and the software is easy to realize.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings in which like reference numerals denote like features throughout the several views, wherein:
Fig. 1 shows a block diagram of a hanging balance of the present invention.
Fig. 2 shows an exploded view of the hanging scale of the present invention as shown in fig. 1.
Fig. 3 shows a first block diagram of the use of the hanging balance of the present invention as shown in fig. 1.
Fig. 4 shows a second configuration diagram of the use of the hanging balance of the present invention as shown in fig. 1.
Fig. 5 is a block diagram showing a third example of the use of the hanging balance of the present invention shown in fig. 1.
Reference numerals:
100-hanging scale
101-rotating clevis
102-fixed clevis
103-protective housing
104-sensor assembly
105-pull type weighing sensor
106-pin shaft
107-knuckle bearing
108-protective plate
109-radio module
110-cell
111-cover plate
112-mounting hole
113-limiting plate
300, 400, 500-weighing structure
301, 401, 501 grab bucket
302, 4021, 4022, 4023, 4024, 5021, 5022, 5023, 5024-steel wire rope
303, 403, 503-reel
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.
Example one
Fig. 1 shows a block diagram of a hanging balance of the present invention. Fig. 2 shows an exploded view of the hanging scale of the present invention as shown in fig. 1.
As shown in fig. 1 and 2, the hanging balance 100 includes: the rotary clevis 101 and the fixed clevis 102 are located on opposite sides of the protective housing 103; the sensor assembly 104 is located inside the protective housing 103, and both ends thereof are connected to the rotary yoke 101 and the fixed yoke 102, respectively. The protective housing 103 is used for protecting the sensor assembly 104 from external impact, dust and the like, and the rotary connection fork 101 is connected with other rotary parts through steel wires, so that the sensor assembly 104 can be effectively protected from the influence of the winding force of the steel wires.
In another embodiment, the sensor assembly 104 includes: a pull-type weighing sensor 105, two ends of which are respectively connected with the rotary connecting fork 101 and the fixed connecting fork 102; the pin shafts 106 and the 2 pin shafts 106 respectively penetrate through the 2 connecting holes of the pull-type weighing sensor 105; the joint bearing 107 is arranged on the pin shaft 106 and is used for micro-adjusting the position of the pull type weighing sensor 105; and the protective plate 108 is used for preventing the pull-type weighing sensor 105 from being separated due to fracture, and the pin shaft 106 penetrates through a hole of the protective plate 108. The surface of the protective case 103 has a mounting hole 112 that coincides with the center line of the attachment hole of the pull-type load cell 105, so that the position of the pull-type load cell 105 is fixed.
In yet another embodiment, a wireless module 109 is located on the protective housing 103 for transmitting the weighing data of the pull-type load cell 105 to the display meter for wireless transmission of the weighing data.
To enable proper operation of the grab bucket scale, the scale 100 also includes a battery 110 that provides power to the pull-type load cell 105 and the wireless module 109. The battery 110 is replaceable.
In order to protect the components of the hanging balance 100, a cover plate 111 is disposed on the protective housing 103 to cover the wireless module 109, the battery 110, and the mounting hole 112, respectively, so as to prevent dust from entering the interior of the protective housing 103, thereby protecting the components.
In yet another embodiment, the steelyard 100 further includes a limit plate 113 mounted on the protective housing 103 near the side of the rotary clevis 101 for reducing the swing of the sensor assembly 104 when the object gripped by the grapple is shaken.
The hanging scale of this embodiment through the swivelling joint fork, has solved the problem of the steel wire winding grab bucket hanging scale of grab bucket for grab bucket hanging scale convenient to use, it is accurate reliable. The hanging scale is effectively protected by the protection shell, the cover plate, the limit plate and the like, so that the hanging scale is not easy to damage. The hanging scale in the embodiment has the advantages of simple structure, convenience in installation and easiness in production and manufacturing.
Example two
Fig. 3 shows a first block diagram of the use of the hanging balance of the present invention as shown in fig. 1.
As shown in fig. 3, the weighing structure 300 includes: a grab bucket 301 for grabbing an object; the grab bucket 301 is connected with the fixed connection fork 102 of the crane scale 100; and the winding drum 303 is used for adjusting the length of the steel wire rope 302, and two ends of the steel wire rope 302 are respectively connected with the winding drum 303 and the rotary connecting fork 101 of the hanging balance 100.
After the grab bucket 301 grabs an object, the length of the steel wire rope 302 is adjusted through the winding drum 303 to lift and release the grab bucket 301, in the process, the hanging scale 100 weighs the grabbed object, and weighing data are transmitted to the display instrument through the wireless module 109.
In this embodiment, only 1 steelyard 100 is used, which is suitable for the situation that the grab bucket 301 is small, and the weight of the grabbed object is the weighing data of the steelyard 100. The hanging scale 100 is simple and convenient to install, low in manufacturing cost and convenient to produce and manufacture. Can weigh when grab bucket 301 during operation, improve work efficiency. When the object of the grab bucket 301 is overweight, the protection plate in the hanging scale 100 can prevent the falling caused by the breakage of the pull-type weighing sensor, thereby avoiding the falling of the grab bucket. The weighing method is simple and can be realized through simple mathematical calculation, and the software is easy to realize.
EXAMPLE III
Fig. 4 shows a second configuration diagram of the use of the hanging balance of the present invention as shown in fig. 1.
As shown in fig. 4, the weighing structure 400 includes: a grab bucket 401 for grabbing an object; the grab bucket 401 is connected with the fixed connection fork 102 of the crane scale 100; two ends of the steel wire ropes 4021 and 4024 are connected with the grab bucket 401 and the rotary connection fork 101 of the crane scale 100; a reel 403 for adjusting the lengths of the steel cables 4021, 4022, 4023, and 4024; the wire ropes 4022 and 4023 connect the grapple 401 and the drum 403.
In order to accurately measure the weight of the object and to ensure the balance of the grab, the joints of the steel cables 4021, 4022, 4023, and 4024 and the drum 403 are equidistantly arranged.
To improve the weighing accuracy, or to adapt the size of the grab bucket 401, the number of wire ropes or hoist scales can be reduced or increased, e.g. using 3 wire ropes and 2 hoist scales, or using 6 wire ropes and 4 hoist scales.
The hanging scale 100 transmits the weighing data to the display instrument through the wireless module 109, and the display instrument calculates and displays the weight of the object. In this embodiment, the weighing structure has 2 hanging scales 100, and the weight of the object to be grabbed is the average value of the weighing data of the 2 hanging scales 100 multiplied by the number of the steel wire ropes 4; to make the calculation more accurate, other mathematical calculation methods may be used to calculate the weight of the object, such as the variance.
In this embodiment, a plurality of hanging scales 100 are installed on the wire rope, so that the weighing is more accurate. The hanging scale 100 is simple and convenient to install, low in manufacturing cost and convenient to produce and manufacture.
Example four
Fig. 5 is a block diagram showing a third example of the use of the hanging balance of the present invention shown in fig. 1.
As shown in fig. 5, the weighing structure 500 includes: a grab bucket 501 for grabbing an object; the winding drum 503 is connected with the fixed connection fork 102 of the hanging balance 100 through a steel wire rope 5024; and the winding drum 503 is used for adjusting the lengths of the steel wire ropes 5021, 5023 and 5024, and two ends of the steel wire rope 5023 are respectively connected with the grab bucket 501 and the rotary connection fork 101 of the crane scale 100. In this embodiment, the wire rope 5022 is also fixed in length.
In order to accurately measure the weight of the object and to ensure the balance of the grapple, the connections of the wire ropes 5021, 5023 and 4024 to the drum 503 are equidistantly disposed.
Compared with the embodiment, the hoist scale 100 in the embodiment is placed upside down, and the weight of the object grabbed by the grab bucket 501 is the weighing data of the hoist scale 100 multiplied by the number 3 of the steel cables. The hanging scale is convenient to install, and the weighing result is not influenced.
The hanging scale can be used as an independent component, and the hanging scale can work normally when inverted up and down, so that the hanging scale is convenient to install. The hanging scale has simple structure and low cost, and is convenient to produce and manufacture; the hanging scale is arranged above the grab bucket, so that the normal work of the grab bucket is not influenced; the protective plate in the hanging scale can prevent the falling caused by the breakage of the pull-type weighing sensor, thereby avoiding the falling of the grab bucket; the rotary connection fork in the hanging scale avoids the influence of steel wire winding on weighing in the working process of the hanging scale. In addition, the invention utilizes a simple calculation method to calculate the weight of the object, and the software is easy to realize.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (9)
1. A hanging scale, comprising: the rotary connecting fork and the fixed connecting fork are respectively arranged at the opposite sides of the outside of the protective shell; the sensor assembly is arranged inside the protective shell, and two ends of the sensor assembly are respectively connected with the rotary connecting fork and the fixed connecting fork.
2. the hanging scale of claim 1, wherein the sensor assembly comprises: the two ends of the pull-type weighing sensor are respectively connected with the rotary connecting fork and the fixed connecting fork, a pin shaft penetrates through a connecting hole of the pull-type weighing sensor and a hole of the protective plate, and a joint bearing is installed on the pin shaft.
3. The hanging scale of claim 1, wherein the other opposite sides of the protective housing are each provided with a recess and each receive the wireless module and the battery.
4. The hanging scale of claim 3, further comprising a cover plate mounted to a surface of the wireless module and a surface of the battery, respectively.
5. The hanging scale of claim 1, wherein a limiting plate is mounted at a location where the protective housing is coupled to the rotary clevis.
6. The hanging balance as claimed in claim 2, wherein the other opposite side surface of said protective housing has a mounting hole which coincides with a center line of the coupling hole of said load cell.
7. A weighing structure, characterized in that it employs at least 1 hoist scale as claimed in any one of claims 1 to 6, comprising: the grab bucket is connected with one end of the hanging scale, and the winding drum is connected with the other end of the hanging scale through a steel wire rope.
8. The weighing structure of claim 7, further comprising: the grab bucket is connected with the winding drum through another steel wire rope.
9. A weighing method applied to the weighing structure of claim 7, wherein the weight of the object gripped by the grapple is an average value of the weighing values of the hoist scales multiplied by the number of the wire ropes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553168.3A CN110553704A (en) | 2018-05-31 | 2018-05-31 | Hanging scale and weighing structure and weighing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553168.3A CN110553704A (en) | 2018-05-31 | 2018-05-31 | Hanging scale and weighing structure and weighing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110553704A true CN110553704A (en) | 2019-12-10 |
Family
ID=68734640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810553168.3A Withdrawn CN110553704A (en) | 2018-05-31 | 2018-05-31 | Hanging scale and weighing structure and weighing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN110553704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233331A (en) * | 2021-05-19 | 2021-08-10 | 海鼎自动化科技(靖江)有限公司 | Metering device mounted on portal crane |
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Application publication date: 20191210 |