CN202133451U - Light scale rack of electronic belt scale used in flat roller belt conveyer - Google Patents
Light scale rack of electronic belt scale used in flat roller belt conveyer Download PDFInfo
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- CN202133451U CN202133451U CN201120235598U CN201120235598U CN202133451U CN 202133451 U CN202133451 U CN 202133451U CN 201120235598 U CN201120235598 U CN 201120235598U CN 201120235598 U CN201120235598 U CN 201120235598U CN 202133451 U CN202133451 U CN 202133451U
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- scale
- load cells
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- belt
- carrying roller
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Abstract
A light scale rack of an electronic belt scale used in a flat roller belt conveyer relates to the weighing technology. A bolt A (2) passes through an aperture of an installing pedestal (1), and is engaged with an internal screw thread of an installing aperture at an end of a weighing sensor (3); a bolt B (5) passes through an aperture of a measure roller support (4), and is engaged with an internal screw thread of an installing aperture at the other end of the weighing sensor (3); and two end shafts of a measure roller (6) are respectively arranged on a recessed arc or a V-shaped face of the measure roller support (4). The advantages are that the scale rack is substantially lightened, so that a weighing sensor of small measuring range can be chosen, and precision of the belt scale can be increased; two parallel beam weighing sensors of single point type are used, and the weighing precision is not influenced by little variation of position of the measure roller; the distance in the vertical direction between the weighing sensor which is externally arranged on two ends of the measure roller and is arranged on a belt rack and the roller shortens, so that influence on the precision of the belt scale by frictional force can be reduced; a positioning instrument is not arranged on the weighing sensor, so that weighing precision is guaranteed; and by using the scale rack of odd or even number, the weighing sensors are arranged opposite to each other, so that influence on the precision of the belt scale by frictional force can be substantially reduced.
Description
Technical field
The utility model relates to weighing technology, especially a kind of roller band conveyor that lifts with light-duty scale frame belted electronic balance.
Background technology
Existing belted electronic balance has 3 types of scale shelf structure forms: 1) the level type scale frame form of band gudgeon; 2) full suspension type type scale frame form; 3) single carrier roller frame underlying LOAD CELLS form.
Traditional structure form 1), 2) belted electronic balance scale frame is heavier; The LOAD CELLS range will select greatly, otherwise overload is damaged easily, and scale frame weight has almost accounted for 40～60% of LOAD CELLS measurement range; And the weight of material measurement range accounts for the scope little (10～30%) of LOAD CELLS; The inhomogeneous interrupted output of particularly low discharge continuous measurement, or material, weight of material is still less; Weight of material accounts for the ratio of LOAD CELLS range maybe be less than 10%, thereby causes the non-constant of small flowmeter accuracy of measurement.
Version 3) scale frame weight ratio version 1), 2) lighter relatively; Can relatively make full use of the effective range (scale frame weight accounts for the 20-40% of transducer range) of LOAD CELLS; But LOAD CELLS because version 3) is being measured under the carrying roller; If 1 single-point type parallel girder LOAD CELLS is installed, antivibration, antitorque effect are bad, thereby the dynamic measurement performance is bad; If 2 single-point type parallel girder LOAD CELLSs are installed, antivibration, antitorque good, dynamic property is good, but owing to measure 2 plane positioning of carrying roller and LOAD CELLS use, bolt again, is prone to location and installation, and LOAD CELLS has internal stress; LOAD CELLS with measure the carrying roller distance than form 1), 2) distance big, belt is big to the influence of belt conveyer scale measuring accuracy to the friction force of measuring carrying roller.Version 3) number of drawbacks factor causes its measuring accuracy generally than version 1), 2) measuring accuracy also poor.
When mass flow≤5 ton/hour; The continuous integration metering of the light material of about 1 meter per second of belt speed; Weight of material＜3kg/m on the belt; If belt conveyer scale scale frame is at 20～200kg, LOAD CELLS is greater than the weight of scale frame weight, scale the preceding paragraph belt conveyor, the gross weight of the weight of material on the scale belt, and LOAD CELLS then will select 50～300kg; The output signal of the LOAD CELLS induction weight of material of employing conditional electronic belt conveyer scale scale frame is very faint; Account for the very little part of LOAD CELLS useful range (about 5～20%), the output sensitivity of effective usable range of LOAD CELLS is just low, thereby causes the material dynamic measurement precision of low discharge belted electronic balance just poor.Scale shelf structure 1), 2) 1～4 of 75～300kg LOAD CELLS in general the use, scale shelf structure 3) generally use 2 50～100kg LOAD CELLSs, could guarantee to bear the weight of belt conveyer scale scale frame, measurement carrying roller, belt conveyor, maximum flow material; Spacing for industry idlers pitch 0.8～1.5m commonly used; For the low discharge metering, weight of material＜3kg/m on the belt, then weight of material only accounts for 5% (even littler) of single LOAD CELLS range; And the LOAD CELLS precision is generally C3 level (3000 calibration); Also consider velocity error, site error, existing belt conveyer scale to the small flowmeter accuracy of measurement can accomplish ± 1～2%, very good.
Summary of the invention
In order to overcome existing belted electronic balance only to big flow; And the industry measurement requirement is satisfied in even, continuous flow metering basically; And the also poor shortcoming of the dynamic integrating measuring accuracy of poor, the heterogeneous discontinuous form convey materials of low discharge integrating measuring accuracy, the utility model provides the large and small flow metering of a kind of simultaneous adaptation belted electronic balance, has satisfied " the lifting the roller band conveyor with light-duty scale frame belted electronic balance " be interrupted conveying simultaneously.This light-duty scale frame belted electronic balance uses light-duty measurement carrying roller, alleviates to measure carrying roller weight; Lightness, simplified design are measured carrying roller and are supported as possible, have alleviated belt conveyer scale scale frame own wt; Fixing the crossing of connection that reduces mounting seat, LOAD CELLS, the support of measurement carrying roller, measures between carrying roller located, and avoids installing internal stress, makes LOAD CELLS be in desirable duty, assurance Weighing linear and repetition stability; Adopt 2 single-point type parallel girder LOAD CELLSs, measuring the relation trace variation of carrying roller position does not influence the sensitivity of weighing, and overcomes the shortcoming of shear beam load cell (containing corrugated tube LOAD CELLS etc.) location sensitive; Let the user select for use and select light-duty belt conveyor (like PVC band, thin steel band etc.) as far as possible for use, make full use of the useful range of LOAD CELLS, scale frame rigidity fully cooperates, coordinates with the LOAD CELLS range; On-the-spot LOAD CELLS angular difference debugging is simple.Through these unique design, what the utility model provided can satisfy large and small flow volume delivery material continuous integration metering, discontinuous form convey materials continuous integration simultaneously, improves material continuous integration measuring accuracy, the metering repetition stability of belted electronic balance greatly.
The purpose of the utility model provides a kind of roller band conveyor that lifts with light-duty scale frame belted electronic balance, and its scale shelf structure is simple, and the scale frame is in light weight, the measurement carrying roller is in light weight, makes full use of the range of LOAD CELLS; Use 2 single-point type parallel girder LOAD CELLSs, measuring carrying roller position subtle change does not influence the sensitivity of weighing, and guarantees to weigh stability; LOAD CELLS and measurement carrying roller support and measure to install between carrying roller does not have the internal stress of location, guarantees to weigh linearity, repetition stability; LOAD CELLS is provided with on the band conveyor frame, measuring the carrying roller two ends, be easy to Installation and Debugging; LOAD CELLS is littler with measurement carrying roller distance in height, and belt scale frame in service is more stable, and belt is just little to the moment of friction of LOAD CELLS to the friction force of measuring carrying roller, helps improving the precision of belt conveyer scale.2 LOAD CELLSs that single scale frame uses are installed in opposite directions, or a plurality of scale puts up even-even and use, and scale frame LOAD CELLS is also installed in opposite directions, can further reduce friction to the influence of belt conveyer scale measuring accuracy.These measures, thereby measuring accuracy, the repetition stability of raising belted electronic balance.
The technical scheme that purpose adopts of the utility model is; Comprise two mount pads, bolt A, two single-point type parallel girder LOAD CELLSs, the support of two measurement carrying rollers, bolt B, measurement carrying roller; Its bolt A passes the hole of mount pad, with the mounting hole internal thread engagement of an end of single-point type parallel girder LOAD CELLS; Bolt B is passed and is measured the hole that carrying roller supports, with another end mounting hole internal thread engagement of single-point type parallel girder LOAD CELLS; Measuring the carrying roller two end axles is placed on respectively on the matrix circular arc or V-arrangement face of measuring the carrying roller support.
The utility model, bolt A passes the hole of mount pad, meshes with the following installed surface of single-point type parallel girder LOAD CELLS one end or the mounting hole internal thread of end face.
The utility model, bolt B pass measures the hole that carrying roller supports, with the end face of the single-point type parallel girder LOAD CELLS other end or the mounting hole internal thread engagement of going up installed surface.
The utility model uses two single-point type parallel girder LOAD CELLSs, and an end of single-point type parallel girder LOAD CELLS installs and measures carrying roller and supports, and integral installation is on scale frame mount pad.
The utility model is compared with structure belt conveyer scale framves such as existing 20 types, 17 types, 14 types, 30 types, and following advantage is arranged:
1. the scale frame alleviates greatly, optional a small amount of range load cell, and equal loading load cell signal output increases, and helps improving the sensitivity of weighing of belt conveyer scale, thereby puies forward the measurement high precision; This structure all can be used big or small mass flow belted electronic balance, particularly to present low discharge metering belted electronic balance overcome too heavy because of the deadweight of scale frame, complex structure causes the unfavorable shortcoming of precision, is a kind of structural breakthrough.
2. the LOAD CELLS installation site is higher than existing 30 type scale frame LOAD CELLS positions; LOAD CELLS center and carrying roller friction force face are littler in the distance of short transverse; Belt scale frame in service is more stable; And belt is just little to the moment of friction of LOAD CELLS to the friction force of measuring carrying roller, helps improving the precision of belt conveyer scale.
3. use 2 single-point type parallel girder LOAD CELLSs, and be placed on carrying roller 2 ends, the scale frame is more stable, antitorque than existing 30 type scale framves, the antivibration effect is also good than existing 30 type structures, helps improving the repetition stability of belt conveyer scale metering.
4. single-point type parallel girder LOAD CELLS is more effective than anti-bias loads such as shear beam load cells, and positioning requirements does not need very strict, and easy to manufacture, a small amount of beat in carrying roller position does not influence the Weighing precision, guarantees the metering repetition stability.
5. the LOAD CELLS of single this patent scale frame is installed and used in opposite directions; Reach and install and use this patent scale frame in pairs in opposite directions; Two reverse friction force moments act on the LOAD CELLS; Each LOAD CELLS voltage signal stack and offset the friction force influence greatly can overcome belt to the influence to the belted electronic balance measuring accuracy of the friction force of measuring carrying roller, guarantees linear gauge accuracy of measurement, the repetition stability precision of belted electronic balance gamut scope.
6. because the measurement carrying roller on the LOAD CELLS supports, measures carrying roller, do not exist the location was installed, help improving the linear and the repetition stability of Weighing; Make easily, install, this structure all is fit to the belted electronic balance that various width lift the roller belt conveyor, uses 2n (n=1,2,3,4 etc.) to organize this patent scale frame, and LOAD CELLS installs in opposite directions, can satisfy the requirement of belt conveyer scale high-precision measuring.
Description of drawings
Further specify the utility model below in conjunction with accompanying drawing.
Fig. 1 is example structure synoptic diagram of the utility model;
Fig. 2 is the right TV structure synoptic diagram of Fig. 1;
Fig. 3 is Fig. 1 plan structure synoptic diagram;
Fig. 4 is another example structure synoptic diagram of the utility model;
Fig. 5 is the right TV structure synoptic diagram of Fig. 4;
Fig. 6 is Fig. 4 plan structure synoptic diagram.
Among the figure: 1-mount pad 2-bolt A 3-single-point type parallel girder LOAD CELLS 4-measures carrying roller and supports 5-bolt B 6-measurement carrying roller 7-belt conveyor.
Embodiment
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6; Comprise two mount pads 1, bolt A2, two single-point type parallel girder LOAD CELLSs 3, two measure that carrying roller supports 4, bolt B 5, measure carrying roller 6, belt conveyor 7; Its bolt A2 passes the hole of mount pad 1, with the mounting hole internal thread engagement of an end of single-point type parallel girder LOAD CELLS 3; Bolt B 5 is passed the hole of measuring carrying roller support 4, with another end mounting hole internal thread engagement of single-point type parallel girder LOAD CELLS 3; Measuring carrying roller 6 two end axles is placed on respectively on the matrix circular arc or V-arrangement face of measuring carrying roller support 4; On measure carrying roller 6, belt conveyor 7 is arranged.
Bolt A2 passes the hole of mount pad 1, meshes with the following installed surface of single-point type parallel girder LOAD CELLS 3 one ends or the mounting hole internal thread of end face.Bolt B 5 is passed the hole of measuring carrying roller support 4, with the end face of single-point type parallel girder LOAD CELLS 3 other ends or the mounting hole internal thread engagement of going up installed surface.
Claims (3)
1. one kind lifts the roller band conveyor with light-duty scale frame belted electronic balance; Comprise that two mount pads (1), bolt A (2), two single-point type parallel girder LOAD CELLSs (3), two measurement carrying rollers support (4), bolt B (5), measure carrying roller (6); It is characterized in that bolt A (2) passes the hole of mount pad (1), with the mounting hole internal thread engagement of an end of single-point type parallel girder LOAD CELLS (3); Bolt B (5) is passed and is measured the hole that carrying roller supports (4), with another end mounting hole internal thread engagement of single-point type parallel girder LOAD CELLS (3); Measuring carrying roller (6) two end axles is placed on respectively on the matrix circular arc or V-arrangement face of measuring carrying roller support (4).
2. a kind of roller band conveyor that lifts according to claim 1 is with light-duty scale frame belted electronic balance; It is characterized in that bolt A (2) passes the hole of mount pad (1), mesh with the following installed surface of single-point type parallel girder LOAD CELLS (3) one ends or the mounting hole internal thread of end face.
3. a kind of roller band conveyor that lifts according to claim 1 is with light-duty scale frame belted electronic balance; It is characterized in that bolt B (5) is passed measures the hole that carrying roller supports (4), with the end face of single-point type parallel girder LOAD CELLS (3) other end or the mounting hole internal thread engagement of going up installed surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120235598U CN202133451U (en) | 2011-07-06 | 2011-07-06 | Light scale rack of electronic belt scale used in flat roller belt conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120235598U CN202133451U (en) | 2011-07-06 | 2011-07-06 | Light scale rack of electronic belt scale used in flat roller belt conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202133451U true CN202133451U (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120235598U Expired - Lifetime CN202133451U (en) | 2011-07-06 | 2011-07-06 | Light scale rack of electronic belt scale used in flat roller belt conveyer |
Country Status (1)
| Country | Link |
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| CN (1) | CN202133451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267564A (en) * | 2013-05-04 | 2013-08-28 | 余姚市通用仪表有限公司 | Embedded metering carrier roller module |
| CN114111976A (en) * | 2021-11-29 | 2022-03-01 | 徐州圣能科技有限公司 | Intelligent electronic belt scale with auxiliary material adding function |
-
2011
- 2011-07-06 CN CN201120235598U patent/CN202133451U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267564A (en) * | 2013-05-04 | 2013-08-28 | 余姚市通用仪表有限公司 | Embedded metering carrier roller module |
| CN114111976A (en) * | 2021-11-29 | 2022-03-01 | 徐州圣能科技有限公司 | Intelligent electronic belt scale with auxiliary material adding function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |
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| CX01 | Expiry of patent term |