CN105651363B

CN105651363B - Realize large-traffic flat bearing roller belt weigher

Info

Publication number: CN105651363B
Application number: CN201610197396.2A
Authority: CN
Inventors: 袁延强
Original assignee: Nanjing Sanai Industrial Automation Co ltd
Current assignee: Nanjing Sanai Industrial Automation Co ltd
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2020-08-04
Anticipated expiration: 2036-03-31
Also published as: CN105651363A

Abstract

The invention relates to a belt weigher, in particular to a flat carrier roller belt weigher capable of realizing large flow, and belongs to the technical field of machinery. The structure of the invention comprises a weighing platform arranged on a conveyor frame, wherein the bottom of the weighing platform is provided with a weighing sensor, the weighing platform is in a frame shape, two ends of a frame body of the weighing platform are respectively fixed with a support plate, a weighing carrier roller is arranged between the support plates, and the weighing carrier roller is provided with a conveyor belt, and the structure is characterized in that: the baffle plate support is further fixed to the two ends of the frame body respectively, the baffle plate is fixed to one end of the baffle plate support, and the baffle plate is located above the two sides of the conveying belt vertically. The advantages are that: the working efficiency is improved, and the metering accuracy is improved; the technical prejudice that the material baffle is not suitable for being arranged on the weighing platform is overcome, and large-flow conveying and high-accuracy metering are realized under the condition of using a flat carrier roller.

Description

Realize large-traffic flat bearing roller belt weigher

Technical Field

The invention relates to a belt weigher, in particular to a flat carrier roller belt weigher capable of realizing large flow, and belongs to the technical field of machinery.

Background

In the prior art, the shape of a roller or a roller group for supporting the material receiving surface of a conveying belt of a belt scale generally has two types of straight shape and three-groove shape, but both have defects in practical use. The two sides of the belt which runs on the three-groove carrier roller group are bent upwards to form a groove shape, so that more materials can be loaded, the belt can run at a higher speed and generally reaches (0.8-6.3) m/s according to different belt widths, and the flow of the conveyed materials is large. On the other hand, the belt is bent to be in a groove shape, so that the rigidity of the belt in a working state is increased, the belt effect is intensified, and the metering of the belt weigher is seriously influenced. In addition, in order to ensure that the belt with the concave curve in the groove-shaped carrier roller group can be smoothly transited to a straight shape consistent with the head and tail rollers of the conveyor, enough distance is required to be reserved between the belt and the head and tail rollers of the conveyor to arrange a plurality of groups of carrier rollers with the groove-shaped angles gradually reduced from large to small, so the length between the head and tail rollers of the conveyor is generally at least (20-30) m, and the belt cannot be applied to places with limited installation space. The conveyor adopting the straight carrier roller can be made quite short, the belt effect is relatively small, but the bulk cargo quantity which can be loaded does not exceed half of the three-section groove with the same bandwidth generally, and the rated highest belt speed is generally below (0.2-1) m/s for preventing the bulk cargo from scattering, so the material conveying quantity in unit time is generally not one tenth of the three-section groove. In order to increase the amount of bulk material that can be loaded, dam members are sometimes added to both sides of the flat idler conveyor belt. The common material blocking components are of two types: one is a continuous corrugated colloid skirt adhered to the two side edges of the outer peripheral surface of the conveying belt, and the other is a baffle plate which is not directly connected with the conveying belt. When the skirt belt runs to the roller position, the top and the bottom of the skirt are stretched into a fan shape repeatedly due to different turning radiuses, the top of the skirt is repeatedly subjected to the cyclic action of superlarge tension to influence the service life, and the skirt belt is more easily damaged when the height of the skirt is higher and the belt speed is faster. Therefore, the running speed of the belt can only be low, the height of the skirt is not more than (8-10) cm, and the large-flow conveying can not be met. The striker plate can be quite high, generally up to (20-50) cm, because the striker plate is arranged at a fixed position and does not move with the conveying belt. However, in the prior art, the striker plate is fixed on the conveying rack, and the weighing result can be influenced by the external force generated when foreign matters are clamped in the gap between the striker plate and the belt, so that high-accuracy metering cannot be realized.

Disclosure of Invention

The invention aims to provide a flat carrier roller belt weigher which realizes large flow and is accurate in metering aiming at the defects in the prior art.

The invention solves the technical problem by the following technical scheme: the utility model provides a realize large-traffic flat bearing roller belt weigher, is including installing the weighing platform in carrying the frame, the bottom of weighing platform is equipped with weighing sensor, the weighing platform is the frame shape, and its framework both ends difference fixed support board, settle the bearing roller of weighing between the backup pad, the conveyer belt has on the bearing roller of weighing, the framework both ends still fix the striker plate support respectively, the striker plate is fixed to the one end of striker plate support, the striker plate is located the top of conveyer belt both sides perpendicularly. After the design, the striker plate is actually fixed on the weighing platform, the improvement of the material bearing capacity can be realized, and the material clamped between the striker plate and the conveying belt generates internal force without influencing the weighing result.

The striker plate is fixed on the weighing platform through the striker plate support, the striker plate support is of a four-section type integrated structure, the first section extends horizontally outwards from the fixed position of the frame body to the second section, the second section vertically extends upwards to the third section, the third section extends obliquely upwards the conveying belt to the fourth section, and the fourth section extends horizontally to the striker plate and is fixed with the striker plate.

The purpose of striker plate is used for neatly being in between two boards with the material on the conveyer belt, and this board adopts metal or hard board to make, can dismantle, is equipped with between the striker plate of both sides and connects adjusting device.

A gap is formed between the material baffle plate and the conveying belt. The gap can be empty, and a shielding layer can be arranged between the material baffle plate and the conveying belt and can be made of soft materials such as rubber. The striker plate can be made high, increases batch layer thickness to increase the flow.

Flanges are arranged at the edges of the two sides of the conveying belt.

The ribs may be a continuous ribbed skirt.

The ribs may also be continuous, independently arranged posts. The stand is the slice, and every stand all inclines to arrange at the conveyer belt edge, pastes mutually end to end between two adjacent stands.

The design of the conveying belt rib can increase the speed of the belt on the basis of the original design without influencing the service life of the belt.

The structure of the invention reduces the error generated during weighing, realizes large-flow material conveying, improves the working efficiency and improves the metering accuracy; the technical prejudice that the material baffle is not suitable for being arranged on the weighing platform is overcome, and large-flow conveying and high-accuracy metering are realized under the condition of using a flat carrier roller.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a top view of fig. 1.

Detailed Description

Examples

The structure of the embodiment is as shown in fig. 1, the connection mode of the left striker plate bracket part in the figure is the prior art, that is, the striker plate is fixed on the conveyor frame through the striker plate bracket, and the right striker plate bracket part in the figure is the structure of the invention for the difference. The embodiment provides a realize large-traffic flat bearing roller belt weigher, including installing the weighing platform 2 on carrying frame 1, the bottom of weighing platform 2 is equipped with weighing sensor 3, weighing platform 2 is the frame shape, its framework both ends are fixed support plate 4 respectively, settle weighing bearing roller 5 between the backup pad 4, conveyer belt 6 has on the weighing bearing roller 5, framework both ends are fixed striker plate support 7 respectively still, striker plate 8 is fixed to striker plate support 7's one end, striker plate 8 is located the top at 6 both sides of conveyer belt perpendicularly. In the figure, a represents a material clamping stress point between a side edge of a traditional belt and a material baffle plate, B represents a material clamping stress point between a side edge of the belt and the material baffle plate of the embodiment, D represents a material baffle plate 8, T represents a weighing platform 2, R represents a conveying rack 1, D is rigidly connected with T through a material baffle plate support 7 (see the right half of the schematic diagram), and D in the prior art is rigidly connected with R through a material baffle plate support (see the left half of the schematic diagram). When materials leak into a gap between the material baffle plate and the conveying belt, an additional acting force FD generated by the material baffle plate on the weighing sensor is generated, and a balance force FR for the additional acting force FD comes from a support reaction force FR 'of the conveying frame in the prior art, and the balance force FT comes from a support reaction force FT' of the weighing platform in the invention. FR' is an additional external force to the load cell, interfering with weighing; and FT' is an internal force and cannot influence the symmetrical weight sensor. After the design, the striker plate is actually fixed on the weighing platform, the improvement of the material bearing capacity can be realized, and the material clamped between the striker plate and the conveying belt generates internal force without influencing the weighing result. The striker plate support 7 of this embodiment is a four-section type integrated structure, and the first section is extended to the second section outward by framework fixed department level, and the second section is perpendicular to be gone up along to the third section, and the third section extends to the fourth section to conveyer belt top slope, and the fourth section level extends to the striker plate and is fixed with the striker plate. The purpose of striker plate is used for neatly being in between two boards with the material on the conveyer belt, and this board adopts metal or hard board to make, can dismantle, is equipped with between the striker plate of both sides and connects adjusting device. A gap is formed between the material baffle plate and the conveying belt. The gap can be empty, and a shielding layer can be arranged between the material baffle plate and the conveying belt and can be made of soft materials such as rubber. The edges of the two sides of the conveying belt 6 are provided with flanges 9. The ribs 9 may be a continuous ribbed skirt. The ribs may also be continuous, independently arranged pillars in this embodiment. The stand is the slice, and every stand all inclines to arrange at the conveyer belt edge, pastes mutually end to end between two adjacent stands. The belt speed can be increased on the basis of the original design without affecting the service life of the belt.

In addition to the above, other embodiments of the present invention are possible. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a realize large-traffic flat bearing roller belt weigher, is including installing the weighing platform in the transport frame, the bottom of weighing platform is equipped with weighing sensor, the weighing platform is the frame shape, and its framework both ends difference fixed support board, settle the bearing roller of weighing between the backup pad, the bearing roller of weighing has conveyer belt, its characterized in that: the material blocking device is characterized in that the two ends of the frame body are respectively provided with a material blocking plate support, one end of the material blocking plate support is provided with a fixed material blocking plate, the material blocking plate is vertically arranged above two sides of the conveying belt, when materials leak into a gap between the material blocking plate and the conveying belt, the material blocking plate can generate an additional acting force FD for the weighing sensor, the balance force FT to the additional acting force FD comes from a counter-force FT 'of the weighing platform, and the balance force FT' is an internal force which cannot be influenced by the symmetrical load cell.

2. The flat idler belt scale for realizing large flow according to claim 1, characterized in that: the striker plate support is of a four-section type integrated structure, the first section extends to the second section from the horizontal outward of the fixed position of the frame body, the second section vertically extends to the third section along the upper edge, the third section extends to the fourth section from the upper part of the conveying belt in an inclined mode, and the fourth section extends to the striker plate horizontally and is fixed with the striker plate.

3. The flat idler belt scale for realizing large flow according to claim 1, characterized in that: a gap is formed between the material baffle plate and the conveying belt.

4. The flat idler belt scale for realizing large flow according to claim 1, characterized in that: a shielding layer is arranged between the material baffle plate and the conveying belt.

5. The flat idler belt scale for realizing large flow according to claim 1, characterized in that: flanges are arranged at the edges of the two sides of the conveying belt.

6. The flat idler belt scale for realizing large flow rate according to claim 5, wherein: the flanges are continuous pattern type skirt edges.

7. The flat idler belt scale for realizing large flow rate according to claim 5, wherein: the flanges are continuous upright columns which are arranged independently.

8. The flat idler belt scale for achieving mass flow according to claim 7, wherein: the stand is the slice, and every stand all inclines to arrange at the conveyer belt edge, pastes mutually end to end between two adjacent stands.