1. The utility model provides a can overcome belt scale balance body of belt effect which characterized in that: is prepared from the following components: the automatic weighing device comprises a conveyor frame (1), a conveyor carrier roller (2), a conveyor belt (3), a metering section carrier roller bracket (4), a metering section carrier roller (5), a scale body (6), a weighing sensor (7), a scale upper carrier roller (8), a sliding plate bracket (9) and a sliding plate (10); the scale body (6) adopts the following components: the belt weigher is characterized by comprising a belt weigher body structure in a form of densely distributing carrier rollers, a belt weigher body structure in a form of a slide plate arranged among the carrier rollers and a belt weigher body structure in a form of a slide plate, and is also suitable for a flat belt straight carrier roller belt weigher; the belt weigher scale body structure of the densely covered carrier roller form: the conveyer carrier roller (2) is arranged on a conveyer frame (1), a conveyer belt (3) is arranged on the conveyer carrier roller (2), a metering section carrier roller (5) and a balance upper carrier roller (8), the metering section carrier roller bracket (4) is fixedly arranged on the conveyer frame (1), the metering section carrier roller (5) is arranged on the metering section carrier roller bracket (4), a balance body (6) is connected with the metering section carrier roller bracket (4) through 4 or 1 weighing sensors (7) with balanced four corners, the balance body (6) is in a static scale form when the conveyer does not run, the balance upper carrier roller (8) is arranged on the balance body (6), the weight of the belt and the weight of materials on the belt act on the weighing sensors (7) through the balance upper carrier roller (8), and the belt is supported on a plane straight line through the metering carrier roller section (5) and the balance upper carrier roller (8), the metering section carrier roller (5) and the adjacent balance upper carrier rollers (8) are arranged in a range of 5-400 mm apart, the distance between the two balance upper carrier rollers (8) is determined to be in a range of 5-400 mm according to the thickness and hardness of the belt, and the belt can pass through the balance body linearly when the belt conveys materials.

2. The belt scale body of claim 1 capable of overcoming the belt effect, wherein: the belt weigher body structure of the slide plate type is arranged between the carrier rollers: the conveyer carrier roller (2) is arranged on a conveyer frame (1), a conveyer belt (3) is arranged on the conveyer carrier roller (2), a metering section carrier roller (5), a scale upper carrier roller (8) and a sliding plate (10), the metering section carrier roller bracket (4) is fixedly arranged on the conveyer frame (1), the metering section carrier roller (5) is arranged on the metering section carrier roller bracket (4), a scale body (6) is connected with the metering section carrier roller bracket (4) through 4 or 1 weighing sensors (7) with balanced four corners, the scale body is in a static scale form when the conveyer does not run, the scale upper carrier roller (8) is arranged on the scale body (6), the lower part of the sliding plate bracket (9) is connected with the scale body (6), the sliding plate (10) acts on the sliding plate bracket (9), the weight of the belt and the weight of materials on the belt act on the weighing sensors (7) through the scale upper carrier roller (8) and the sliding plate bracket (9), the metering section carrier roller (5), the scale upper carrier roller (8) and the sliding plate (10) support the belt on the same plane, the metering section carrier roller (5) and the adjacent scale upper carrier roller (8) are arranged within the range of 5-400 mm, the distance between the scale upper carrier roller (8) and the sliding plate (10) is determined within the range of 5-100 mm according to the thickness and hardness of the belt, and the belt can pass through the scale body linearly when the belt conveys materials.

3. The belt scale body of claim 1 capable of overcoming the belt effect, wherein: the belt scale body structure of slide plate form: the conveyer carrier roller (2) is arranged on a conveyer frame (1), a conveyer belt (3) is arranged on the carrier roller (2), a metering section carrier roller (5) and a sliding plate (10), the metering section carrier roller bracket (4) is fixedly arranged on the conveyer frame (1), the metering section carrier roller (5) is arranged on the metering section carrier roller bracket (4), a scale body (6) is connected with the metering section carrier roller bracket (4) through 4 or 1 weighing sensors (7) with balanced four corners, the scale body is in a static scale form when the conveyer does not run, the lower part of the sliding plate bracket (9) is connected with the scale body (6), the sliding plate (10) acts on the sliding plate bracket (9), the weight of the belt and the weight of materials on the belt act on the weighing sensors (7) through the sliding plate (10) and the sliding plate bracket (9), the metering section carrier roller (5) and the upper sliding plate (10) support the belt on the same plane straight line, the metering section carrier roller (5) and the adjacent balance upper sliding plate (10) are arranged in a range of 5-100 mm apart, so that a belt can pass through the balance body in a straight line when the belt conveys materials.

Background

At present, belt weighers at home and abroad are various, such as: the belt conveyer comprises a single-carrier roller multi-scale-body parallel structure, a double-lever multi-carrier roller scale-body structure, a single-carrier roller scale-body structure and the like, but the single-carrier roller multi-scale-body parallel structure, the double-lever multi-carrier roller scale-body structure, the single-carrier roller scale-body structure and the like do not have the function of eliminating errors caused by belt effects. Because the belt is flexible, the belt conveyer can generate fluctuation under the action of the gravity and momentum of the material when in operation, the wave crest is positioned at the carrier roller, the midpoint of the wave trough is not positioned between the two carrier rollers, the momentum is generated when the object operates, the momentum is a vector, the momentum = MV, the mass M of the object is multiplied by the speed V, the wave crest is unchanged, the low point of the wave trough is changed along with the momentum, the larger the momentum is, the lower the wave trough is, the larger the component force of the momentum on the gravity is, the larger the momentum is, the more the low point of the wave trough moves forwards, the waveform generated at the moment is irregular sawtooth wave, the momentum and the gravity can not completely offset the rising and falling of the wave crest and the wave trough when in operation, the fluctuation can change the skin value because the impulse generated by the material conveyed by fluctuation is caused by movement and overturning, the fluctuation is small, and the momentum, the belt effect is known in the industry as the component force of the fluctuation of large momentum superimposed on the gravity when loading materials is also large. Factors that change belt effects are many, such as belt tension, air temperature changes, belt wear, and the like. The belt weighers on the market at present cannot eliminate the belt effect, the accuracy is temporary, a certain measuring range is obtained, the belt effect error of the measuring range is eliminated as a system error during calibration, the belt is worn or the temperature is changed or the tension is changed or the measuring range is changed after long-term use, and the belt effect is changed, so that the accuracy of the belt weigher is also changed. This is also the reason for the poor accuracy and durability of the belt scale. And because the distance between the carrier rollers of the belt scale on the existing market is almost consistent with that of the conveyor, the generation of the belt effect is inevitable.

Disclosure of Invention

The invention overcomes the defects, and aims to realize that materials passing through the scale body of the belt scale are static and immobile relative to a carrier, namely a conveyor belt, when passing through the scale body, the carrier moves linearly through the scale body, the metering is not influenced by momentum and impulse, errors caused by belt effects can be completely eliminated, and the belt scale can work stably and accurately for a long time.

The invention can overcome the belt effect belt scale body content brief description:

the invention discloses a belt scale body capable of overcoming belt effect, which is characterized in that: is prepared from the following components: the automatic weighing device comprises a conveyor frame, a conveyor roller, a conveyor belt, a metering section roller support, a metering section roller, a scale body, a weighing sensor, a scale upper roller, a sliding plate support and a sliding plate; the scale body adopts: the belt weigher is characterized in that the belt weigher is in three forms of a belt weigher body structure in a form of densely distributing carrier rollers, a belt weigher body structure in a form of arranging a sliding plate between the carrier rollers and a belt weigher body structure in a form of a sliding plate, and the belt weigher is also suitable for a flat belt straight carrier roller belt weigher; the belt weigher scale body structure of the densely covered carrier roller form: the conveyer carrier roller is arranged on a conveyer frame, a conveyer belt is arranged on the conveyer carrier roller, a metering section carrier roller and a scale upper carrier roller, the metering section carrier roller support is fixedly arranged on the conveyer frame, the metering section carrier roller is arranged on the metering section carrier roller support, a scale body is connected with the metering section carrier roller support through 4 or 1 weighing sensors with four corners balanced, when the conveyer does not run, the scale body is in a static scale form, the scale upper carrier roller is arranged on the scale body, the weight of the belt and the weight of materials on the belt pass through the scale upper carrier roller and then act on the weighing sensors through the scale body, the belt is supported on a plane through the metering section carrier roller and the scale upper carrier roller and are in a straight line, the metering section carrier roller and an adjacent scale upper carrier roller are arranged within a distance of 5-400 mm, and the distance between the two scale upper carrier rollers is within a range of 5-400 mm according to the thickness hardness of the belt, ensure that the belt passes through the scale body in a straight line when the belt conveys materials.

The belt weigher body structure of the slide plate type is arranged between the carrier rollers: the conveyer carrier roller is arranged on a conveyer frame, the conveyer belt is arranged on the conveyer carrier roller, the metering section carrier roller, the scale upper carrier roller and the sliding plate, the metering section carrier roller bracket is fixedly arranged on the conveyer frame, the metering section carrier roller is arranged on the metering section carrier roller bracket, the scale body is connected with the metering section carrier roller bracket through 4 or 1 weighing sensors with balanced four corners, when the conveyer does not run, the scale body is in a static scale form, the scale upper carrier roller is arranged on the scale body, the lower part of the sliding plate bracket is connected with the scale body, the sliding plate acts on the sliding plate bracket, the weight of the belt and the weight of materials on the belt act on the weighing sensors through the scale upper carrier roller and the sliding plate bracket and the scale body, the metering section carrier roller and the slide plate supporting belt on the scale are on the same plane, and the metering section carrier roller and the adjacent scale upper carrier roller are arranged in the range of 5-400 mm, the distance between the upper support roller of the scale and the sliding plate is determined to be within the range of 5-100 mm according to the thickness and the hardness of the belt, and the belt can pass through the scale body linearly when the belt conveys materials.

The belt scale body structure of slide plate form: conveyer bearing roller sets up on the conveyer shelf, the conveyer belt sets up at the bearing roller, the higher authority of measurement section bearing roller and slide, measurement section bearing roller support is fixed to be set up on the conveyer shelf, measurement section bearing roller sets up on measurement section bearing roller support, the balance body links to each other with measurement section bearing roller support through 4 or 1 balanced weighing sensor in four corners, the balance body is static scale form when the conveyer does not operate, the lower part of slide support links to each other with the balance body, the slide is used in on the slide support, the weight of belt and the material weight on the belt pass through the slide and slide support rethread balance body and act on weighing sensor, measurement section bearing roller and balance upper slide support belt are on a plane alignment, measurement section bearing roller and adjacent balance upper slide set up at a distance of between 5~100mm within a definite time, the belt straight line passes through the balance body when guaranteeing the belt transport material.

The belt scale body capable of overcoming the belt effect has the characteristics of reasonable design, accurate measurement, simple structure and convenience in installation, debugging and maintenance, is a device suitable for conveying bulk materials such as wharfs, iron and steel plants, cement plants, chemical plants, mines and the like to accurately measure the materials, can accurately transfer the weight of the materials conveyed by the belt conveyor to the sensor and the instrument, and is also suitable for a flat belt straight carrier roller belt scale.

Drawings

FIG. 1 is a schematic diagram of a scale body structure of a belt scale in the form of densely-distributed carrier rollers;

FIG. 2 is a schematic diagram of the structure of a slide plate type belt scale with rollers interposed;

fig. 3 is a schematic diagram of the scale body structure of the slide plate type belt scale.

In the figure: the automatic weighing device comprises a conveyor frame 1, a conveyor roller 2, a conveyor belt 3, a metering section roller support 4, a metering section roller 5, a scale body 6, a weighing sensor 7, a scale upper roller 8, a sliding plate support 9 and a sliding plate 10.

Detailed Description

The belt scale body capable of overcoming the belt effect is realized in the way, and the following detailed description is made by combining the attached drawings.

The invention can overcome the belt effect belt scale body, is made of: the automatic weighing device comprises a conveyor frame 1, a conveyor carrier roller 2, a conveyor belt 3, a metering section carrier roller bracket 4, a metering section carrier roller 5, a scale body 6, a weighing sensor 7, a scale upper carrier roller 8, a sliding plate bracket 9 and a sliding plate 10; the scale body size is determined according to the width of the conveyor, the width is slightly narrower than the width of the conveyor rack, and the length is 1-4 times of the width of the scale body. The scale body 6 is in the form of a static scale, namely: when the conveyer stops running, the instrument of any position where the object with the same mass is placed on the scale body displays the same weight value, so that the accuracy of the belt scale can be ensured by using the belt scale for a long time after the belt scale is dynamically calibrated once and calibrating the static scale before calibration. In order to ensure that the conveyor belt passes through the scale body without fluctuation, the scale body 6 adopts the following steps: the belt weigher is suitable for flat belt straight carrier roller belt weighers.

See fig. 1, the scale body structure of the belt scale in the form of densely distributed carrier rollers: the conveyor carrier roller 2 is arranged on a conveyor frame 1, a conveyor belt 3 is arranged on the conveyor carrier roller 2, a metering section carrier roller 5 and a weighing upper carrier roller 8, the metering section carrier roller support 4 is fixedly arranged on the conveyor frame 1, the metering section carrier roller 5 is arranged on the metering section carrier roller support 4, a scale body 6 is connected with the metering section carrier roller support 4 through 4 or 1 weighing sensors 7 with balanced four corners, when the conveyor is not operated, the scale body 6 is in a static scale form, the weighing upper carrier roller 8 is arranged on the scale body 6, the weight of the belt and the weight of materials on the belt act on the weighing sensors 7 through the weighing upper carrier rollers 8, the belt is supported on a plane on a straight line through the metering section carrier roller 5 and the weighing upper carrier roller 8, the distance between the metering section carrier roller 5 and the adjacent weighing upper carrier roller 8 is within the range of 5-400 mm, the distance between the two weighing upper carrier rollers 8 is within the range of 5-400 mm according to the thickness of the belt, ensure that the belt passes through the scale body in a straight line when the belt conveys materials.

See fig. 2, the balance body structure of the belt balance with the sliding plate type arranged between the carrier rollers: the conveyer carrier roller 2 is arranged on a conveyer frame 1, a conveyer belt 3 is arranged on the conveyer carrier roller 2, a metering section carrier roller 5, a scale upper carrier roller 8 and a sliding plate 10, the metering section carrier roller bracket 4 is fixedly arranged on the conveyer frame 1, the metering section carrier roller 5 is arranged on the metering section carrier roller bracket 4, a scale body 6 is connected with the metering section carrier roller bracket 4 through 4 or 1 weighing sensors 7 with balanced four corners, when the conveyer does not run, the scale body is in a static scale form, the scale upper carrier roller 8 is arranged on the scale body 6, the lower part of the sliding plate bracket 9 is connected with the scale body 6, the sliding plate 10 acts on the sliding plate bracket 9, the weight of the belt and the weight of materials on the belt act on the weighing sensors 7 through the scale upper carrier roller 8 and the sliding plate bracket 9 through the scale body, the metering section carrier roller 5 and the sliding plate 8 of the upper carrier roller 10 support the belt on a plane, the metering section carrier roller 5 and the adjacent balance upper carrier roller 8 are arranged within the range of 5-400 mm, the distance between the balance upper carrier roller 8 and the sliding plate 10 is determined within the range of 5-100 mm according to the thickness and the hardness of the belt, and the belt can pass through the balance body in a straight line when the belt conveys materials.

Referring to fig. 3, the scale body structure of the slide plate type belt scale is as follows: the conveyer carrier roller 2 is arranged on a conveyer frame 1, a conveyer belt 3 is arranged on the carrier roller 2, a metering section carrier roller 5 and a sliding plate 10, a metering section carrier roller support 4 is fixedly arranged on the conveyer frame 1, the metering section carrier roller 5 is arranged on the metering section carrier roller support 4, a scale body 6 is connected with the metering section carrier roller support 4 through 4 or 1 weighing sensors 7 with four corners balanced, when the conveyer does not run, the scale body is in a static scale form, the lower part of a sliding plate support 9 is connected with the scale body 6, the sliding plate 10 acts on the sliding plate support 9, the weight of the belt and the weight of materials on the belt act on the weighing sensors 7 through the sliding plate 10 and the sliding plate support 9, the metering section carrier roller 5 and an upper sliding plate 10 of the scale support the belt on a plane in a straight line, and the metering section carrier roller 5 and an adjacent upper sliding plate 10 of the scale are arranged within the range of 5-100 mm, ensure that the belt passes through the scale body in a straight line when the belt conveys materials.

The invention adopts the three belt weigher bodies, and the conveyer belt passes through the weigher bodies in a non-fluctuating straight line. When the conveyer is horizontally placed, the scale body of the belt scale is also horizontally arranged, and the momentum does not influence the weighing of the belt scale; when the conveyer is obliquely placed, the scale body of the belt scale is also arranged along with the conveyer at the same inclination angle. When the belt conveyor works, if the belt conveyor runs at a constant speed, the influence of momentum on the weighing of the belt scale is constant, and the system error can be eliminated by the instrument. If the belt conveyer runs at variable speed, the influence of momentum on the weighing of the belt scale is also changed, but the belt conveyer has a certain rule, and the weighing error can be eliminated by adding variable speed compensation to the meter.

The belt scale body can overcome the belt effect, has the characteristics of reasonable design, accurate measurement, simple structure and convenient installation, debugging and maintenance, is a device which is suitable for conveying bulk materials such as wharfs, steel plants, cement plants, chemical plants, mines and the like to accurately measure the materials, and can accurately transfer the weight of the materials conveyed by the belt conveyor to the sensor and the instrument.