Aggregate weighing device

Abstract

The utility model relates to the technical field of aggregate weighing, and provides an aggregate weighing device which comprises a support, an aggregate weighing hopper arranged on the support and a transmission belt mechanism arranged below the aggregate weighing hopper, a suspension assembly is arranged on the support, the aggregate weighing hopper is hung on the support through the suspension assembly, and the transmission belt mechanism is arranged below the aggregate weighing hopper. The suspension assembly is provided with a weight sensor, the weight sensor is electrically connected to the central control platform, the central control platform is electrically connected to the controller, and the controller is electrically connected to the transmission belt mechanism. The aggregate weighing hopper is provided with a connecting assembly, and the transmission belt mechanism is installed on the aggregate weighing hopper through the connecting assembly. The transmission belt mechanism is obliquely arranged upwards in the conveying direction, and a lower opening of the aggregate weighing hopper abuts against the upper surface of the transmission belt mechanism. The aggregate weighing device has the beneficial effects that the aggregate weighing precision is improved, and meanwhile, the occupied volume of the weighing device is reduced.

Description

Technical Field

[0001] This application relates to the technical field of aggregate weighing, and in particular to an aggregate weighing device. Background Art

[0002] Terrazzo floor (also known as grindstone floor) is a product made by mixing aggregates such as crushed stones, glass, and quartz into a cement binder to form a concrete product and then grinding and polishing the surface. It is also the preferred choice for some large commercial floors.

[0003] Among them, the aggregate usually needs to be weighed before mixing so that the aggregate can be mixed with materials such as cement in the required proportion. The accuracy of aggregate weighing will affect the physical properties of the final concrete product. The aggregate weighing device in the prior art specifically includes a bracket, a hopper arranged on the bracket, a conveyor belt arranged below the hopper, a weight sensor arranged on the conveyor belt, and a feeding device for conveying the aggregate to the hopper. The feeding device sends the aggregate into the hopper, and the aggregate enters from the opening of the hopper and then falls onto the conveyor belt below. The weight is measured by the weight sensor arranged on the conveyor belt below. The weight sensor is electrically connected to the central control platform, the central control platform is electrically connected to the controller, and the controller is electrically connected to the feeding device and the conveyor belt. When the aggregate on the conveyor belt reaches the set weight, the feeding device is controlled to stop feeding the hopper.

[0004] Since the weight sensor is arranged on the conveyor belt, in order to maintain accurate weighing, the conveyor belt with the weight sensor needs to be horizontally arranged for weighing. After the aggregate is weighed, it needs to be conveyed to the mixing device for mixing. That is, the conveyor belt of the aggregate weighing device needs to be able to send the aggregate into the mixing device. Due to the weighing requirement, the weighing conveyor belt is horizontally arranged. Then, the output end of the weighing conveyor belt needs to be higher than the feeding port of the mixing device. Usually, the weighing device is mounted above the mixing device, thus increasing the occupied space of the vertical space of the weighing device; or the weighing device does not need to be mounted high, and a lifting conveyor belt capable of lifting and conveying the aggregate to the feeding port of the mixing device is arranged at the output end of the weighing conveyor belt. The lifting conveyor belt is gradually inclined upward along the conveying direction. The setting of the lifting conveyor belt increases the horizontal space of the weighing device in the conveying direction, increases the conveying distance and time, and reduces the conveying efficiency. For construction sites with limited mixing working space, such as terrazzo floor construction which is usually an indoor operation, the problem of occupied space directly restricts the practicability of the aggregate weighing and mixing device. Therefore, how to reduce the occupied space while ensuring the weighing accuracy of the aggregate weighing device is an important technical problem to be solved to improve the scene versatility of the weighing device. Summary of the Utility Model

[0005] In order to improve the weighing accuracy of aggregate weighing and reduce the occupied volume of the weighing device, this application provides an aggregate weighing device.

[0006] An aggregate weighing device provided by the present application adopts the following technical solution:

[0007] An aggregate weighing device includes a bracket, an aggregate weighing hopper arranged on the bracket, and a conveyor belt mechanism arranged below the aggregate weighing hopper. A suspension assembly is arranged on the bracket, and the aggregate weighing hopper is hung on the bracket through the suspension assembly. A weight sensor is arranged on the suspension assembly, and the weight sensor is electrically connected to a central control platform. The central control platform is electrically connected to a controller, and the controller is electrically connected to the conveyor belt mechanism; a connection assembly is arranged on the aggregate weighing hopper, and the conveyor belt mechanism is installed on the aggregate weighing hopper through the connection assembly. The conveyor belt mechanism is arranged obliquely upward along the conveying direction, and the lower opening of the aggregate weighing hopper abuts against the upper surface of the conveyor belt mechanism. An outlet is formed on the side wall of the aggregate weighing hopper facing the conveying direction of the conveyor belt mechanism.

[0008] By adopting the above technical solution, since the conveyor belt mechanism is installed on the aggregate weighing hopper through the connection assembly, and the aggregate weighing hopper is installed on the bracket through the suspension assembly, and a weight sensor is arranged on the suspension assembly, the weight sensor weighs the conveyor belt mechanism, the aggregate weighing hopper, the suspension assembly, the connection assembly, and the aggregate falling into the aggregate weighing hopper and the conveyor belt mechanism. When weighing in a suspended manner, the aggregate weighing hopper and other components below are weighed as a whole, and the weighing range includes the overall weight change of the weighing device from feeding to discharging to the mixing device, and it is easy to obtain the weight change of the weighing device, and the weighing is accurate. Moreover, since the suspended weighing method is adopted and does not rely on the horizontal weighing of the conveyor belt, the conveyor belt does not need to be horizontally arranged, and the conveyor belt mechanism can be directly presented as being obliquely upward along the conveying direction as a whole, so as to reduce the occupied volume of the overall device caused by the need to set a horizontally arranged conveyor belt and an obliquely arranged conveyor belt in the prior art, reduce the extra conveying path, and improve the conveying efficiency. Therefore, it is possible to reduce the occupied volume while achieving accurate measurement.

[0009] Preferably, the aggregate weighing hopper sequentially includes a first section and a second section fixedly connected to the first section from top to bottom. A hypotenuse parallel to the conveying direction of the conveyor belt mechanism is arranged below the first section, and the second section is arranged as a rectangular pipe and extends to the discharging end of the conveyor belt mechanism.

[0010] By adopting the above technical solution, the aggregate weighing hopper is divided into a first section and a second section. A hypotenuse parallel to the conveying direction of the conveyor belt mechanism is provided below the first section, so that the side wall of the first section perpendicular to the conveying direction of the conveyor belt is arranged in a right trapezoid or a triangle. Since the second section is fixedly connected to the hypotenuse below the first section and the second section is arranged as a rectangular pipe, the length direction of the second section is parallel to the conveying direction of the conveyor belt mechanism, and the second section extends to the discharge end of the conveyor belt. By increasing the capacity in the horizontal direction, the amount of one weighing can be increased at a limited height, the weighing times can be reduced, and the working efficiency can be accelerated. Moreover, when weighing, the aggregates are more evenly dispersed on the conveyor belt mechanism, the weighing accuracy is relatively precise, and compared with the weighing device arranged above the mixing plant, the overall height is reduced, and the occupied volume can be reduced.

[0011] Preferably, a first baffle is provided on the inner wall of the aggregate weighing hopper, and a discharge port is formed between the first baffle and the aggregate weighing hopper.

[0012] By adopting the above technical solution, by providing the first baffle, the impact force of the aggregates falling from above the aggregate weighing hopper is dispersed, and then falls on the conveyor belt mechanism from the discharge port, reducing the damage to the conveyor belt mechanism and the conveying load caused by the falling impact of the aggregates.

[0013] Preferably, the cross-section of the first baffle along its radial direction is arranged in an arcuate shape with the back arched.

[0014] By adopting the above technical solution, so that the aggregates falling in the middle move along the shape of the first baffle towards the direction of the discharge port, reducing the possibility of the weighed aggregates remaining in the aggregate weighing hopper.

[0015] Preferably, four suspension components and four weight sensors are provided, and are respectively arranged at the four top corners of the aggregate weighing hopper.

[0016] By adopting the above technical solution, by providing four suspension components and weight sensors, the four corners of the weighing hopper are fixed, improving the hanging effect of the weighing hopper and also improving the measurement accuracy of the aggregates entering the aggregate weighing hopper and the conveyor belt mechanism.

[0017] Preferably, the suspension component includes a first lifting lug fixedly connected to the bracket, a second lifting lug arranged below the first lifting lug, and a suspension arm connected to the second lifting lug. Third lifting lugs for hanging on the first lifting lug and the second lifting lug are convexly provided on the opposite end faces of the weight sensor, and the suspension arm is fixedly connected to the side wall of the aggregate weighing hopper.

[0018] By adopting the above technical solution, the hanging of the aggregate weighing hopper is realized through the first lifting lug, the second lifting lug and the suspension arm.

[0019] Preferably, the weight sensor is detachably connected to the third lifting lug.

[0020] By adopting the above technical solution, as the weight sensor is used, the detection accuracy may decrease. Therefore, the weight sensor is detachably connected to the third lifting lug for replacement.

[0021] Preferably, the conveyor belt mechanism includes a frame, two conveyor rollers rotatably connected to both ends of the frame, a plurality of support rollers disposed on the frame, a conveyor belt wound around the two conveyor rollers and the plurality of support rollers, and a driving member for driving one of the conveyor rollers to rotate. The connecting assembly includes a connecting arm disposed on the side wall of the frame, and the connecting arm is fixedly connected to the side wall of the aggregate weighing hopper.

[0022] By adopting the above technical solution, the driving member is started to drive the rotation of the conveyor roller, so as to realize the conveyance of the aggregate. Since the aggregate has a certain weight, in order to reduce the impact on the conveyor belt and the subsequent conveyance difficulty, a plurality of support rollers are provided to support the aggregate and the conveyor belt.

[0023] Preferably, a plurality of connecting arms are arranged at intervals along the length direction of the frame.

[0024] By adopting the above technical solution, the aggregate weighing hopper is extended to the discharge end of the conveyor belt, the conveyance length of the conveyor belt can be lengthened, corresponding connecting arms can be increased to improve the corresponding connection strength, and the length of the aggregate weighing hopper in the horizontal direction can be increased to increase the amount of aggregate that can be accommodated at one time, reduce the weighing times, and improve the subsequent mixing amount.

[0025] In summary, the utility model has the following beneficial effects:

[0026] 1. Since the conveyor belt mechanism is installed on the aggregate weighing hopper through the connecting assembly, and the aggregate weighing hopper is installed on the bracket through the suspension assembly, and a weight sensor is arranged on the suspension assembly, so that the weight sensor weighs the conveyor belt mechanism, the aggregate weighing hopper, the suspension assembly, the connecting assembly, and the aggregate falling into the aggregate weighing hopper and the conveyor belt mechanism. When weighing in a suspended manner, the aggregate weighing hopper and other components below are weighed as a whole. The weighing range includes the overall weight change of the weighing device from feeding to discharging to the mixing device, and it is easy to obtain the weight change of the weighing device, and the weighing is accurate. Moreover, since the suspended weighing method is adopted, it does not depend on the horizontal weighing of the conveyor belt, and the conveyor belt does not need to be horizontally arranged. The conveyor belt mechanism as a whole can be directly arranged to be inclined upward along the conveying direction, so as to reduce the occupied volume of the overall device caused by the need to set a horizontally arranged conveyor belt and an inclined conveyor belt in the prior art, reduce the extra conveying path, and improve the conveying efficiency. Therefore, it can reduce the occupied volume while realizing accurate measurement.

[0027] 2. By providing a first baffle, the impact force of the aggregate falling from above the aggregate weighing hopper is dispersed, and then it falls on the conveyor belt mechanism from the discharge port, reducing the damage to the conveyor belt mechanism caused by the falling impact of the aggregate and the conveying load. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0029] Figure 2 is a schematic diagram of the overall structure of the connection component in an embodiment of the present application;

[0030] Figure 3 is a top view structural schematic diagram of the aggregate weighing hopper in an embodiment of the present application;

[0031] Figure 4 is a structural schematic diagram of the suspension component in an embodiment of the present application.

[0032] Description of reference numerals: 1, support; 11, bottom rod; 12, vertical rod; 13, cross bar; 14, connecting rod; 2, aggregate weighing hopper; 21, feed inlet; 22, first baffle; 23, discharge port; 24, second baffle; 25, third baffle; 3, conveyor belt mechanism; 31, frame; 32, conveying roller; 33, support roller; 34, conveyor belt; 35, driving member; 351, driving motor; 352, gearbox; 4, suspension component; 41, first lifting lug; 42, second lifting lug; 43, suspension arm; 5, weight sensor; 51, third lifting lug; 6, central control platform; 61, controller; 7, connection component; 71, fixing plate; 72, connecting arm; 73, bolt; 8, first section; 9, second section. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will further describe the present application in detail Figures 1-4 in conjunction with the attached drawings.

[0034] An embodiment of the present application discloses an aggregate weighing device.

[0035] Embodiment:

[0036] An aggregate weighing device, referring to Figure 1 、 Figure 2, including a support 1, an aggregate weighing hopper 2 disposed on the support 1, and a conveyor belt mechanism 3 disposed below the aggregate weighing hopper 2. A suspension assembly 4 is provided on the support 1. The aggregate weighing hopper 2 is hung on the support 1 through the suspension assembly 4. A weight sensor 5 is provided on the suspension assembly 4. The weight sensor 5 is electrically connected to a central control platform 6. The central control platform 6 is electrically connected to a controller 61. The controller 61 is electrically connected to the conveyor belt mechanism 3. A connection assembly 7 is provided on the aggregate weighing hopper. The conveyor belt mechanism 3 is installed on the aggregate weighing hopper 2 through the connection assembly 7.

[0037] With the above structure, the weight sensor 5 weighs the conveyor belt mechanism 3, the aggregate weighing hopper 2, the suspension assembly 4, the connection assembly 7, and the aggregate that falls into the aggregate weighing hopper 2 and the conveyor belt mechanism 3.

[0038] Among them, the support 1 specifically includes two bottom rods 11 parallel to the ground and arranged in parallel, a vertical rod 12 fixedly connected to the bottom rods 11, and a cross bar 13 perpendicular to the vertical rod 12. Among them, two vertical rods 12 are provided on one bottom rod 11, a connecting rod 14 is provided between the two vertical rods 12, and a connecting rod 14 is also provided between the two vertical rods 12 on the two bottom rods 11. In this embodiment, both the cross bar 13 and the connecting rod 14 are made of channel steel. In this embodiment, the central control platform 6 is disposed on one side of the aggregate weighing hopper 2, that is, between the two vertical rods 12, and is fixed to the upper surface of the bottom rod 11.

[0039] Refer to Figure 2 、 Figure 3 , in this embodiment, the aggregate weighing hopper 2 has a feed inlet 21 above. The aggregate weighing hopper 2 includes a first section 8 from top to bottom and a second section 9 fixedly connected to the first section 8. A hypotenuse parallel to the conveying direction of the conveyor belt mechanism 3 is provided below the first section 8. The second section 9 is a rectangular tube, and the length direction of the second section 9 is parallel to the conveying direction of the conveyor belt mechanism 3. The second section 9 extends to the discharge end of the conveyor belt mechanism 3.

[0040] Further, to reduce the load on the lower conveyor belt mechanism 3, in this embodiment, a first baffle 22 is provided on the inner wall of the aggregate weighing hopper 2. The first baffle 22 is specifically fixedly connected to the opposite side walls in the width direction of the second section 9. The cross section of the first baffle 22 along its radial direction is in an arched shape. The length direction of the first baffle 22 is parallel to the length direction of the aggregate weighing hopper 2, and a discharge port 23 is formed between the opposite side walls of the first baffle 22 and the aggregate weighing hopper 2.

[0041] Refer to Figure 1 、 Figure 4, wherein, in this embodiment, there are four suspension assemblies 4 and four weight sensors 5, which are respectively arranged at the four top corners of the aggregate weighing hopper 2. The suspension assembly 4 specifically includes a first lifting lug 41 fixedly connected to the bracket 1, a second lifting lug 42 arranged below the first lifting lug 41, and a suspension arm 43 connected to the second lifting lug 42. In this embodiment, both the first lifting lug 41 and the second lifting lug 42 are set as eyebolt 73. The first lifting lug 41 is threadedly connected to the connecting rod 14, and the second lifting lug 42 is threadedly connected to the upper surface of the suspension arm 43. The suspension arm 43 is fixedly connected to the side wall of the aggregate weighing hopper 2. Wherein, third lifting lugs 51 for hanging on the first lifting lug 41 and the second lifting lug 42 are arranged on the opposite end faces of the weight sensor 5. In this embodiment, the third lifting lug 51 is also set as an eyebolt 73. Fixed blocks threadedly connected to the third lifting lug 51 are protrudingly arranged on the opposite end faces of the weight sensor 5, so that the weight sensor 5 is detachably connected to the third lifting lug 51.

[0042] Wherein, the belt mechanism 3 specifically includes a frame 31, two conveying rollers 32 rotatably connected to both ends of the frame 31, several supporting rollers 33 arranged on the frame 31, a transmission belt 34 wound around the two conveying rollers 32 and the several supporting rollers 33, and a driving member 35 for driving one of the conveying rollers 32 to rotate. The frame 31 is fixedly connected to the side wall of the aggregate weighing hopper 2 through a connecting component 7. The end of the supporting roller 33 is fixedly connected to the upper surface of the frame 31 and is arranged at intervals along the length direction of the frame 31 to support the aggregate falling on the transmission belt 34. In this embodiment, the driving member 35 specifically includes a driving motor 351 fixedly connected to the side wall of the frame 31 and a gearbox 352 fixedly connected to the output shaft of the driving motor 351. The gearbox 352 is fixedly connected to the side wall of the frame 31, and the output shaft of the gearbox 352 penetrates through the frame 31 and is fixedly connected to one of the conveying rollers 32. Start the driving motor 351 to drive the transmission belt 34 to move towards its discharge end to drive the conveyance of the aggregate.

[0043] Back to Figure 2 , in this embodiment, the connecting component 7 specifically includes two fixing plates 71 respectively fixedly connected to the aggregate weighing hopper 2, a connecting arm 72 fixedly connected to the lower surface of the fixing plate 71, and a bolt 73 threadedly penetrating and connecting to the connecting arm 72. Several connecting arms 72 are arranged at intervals along the length direction of the fixing plate 71. There are two connecting arms 72 on one fixing plate 71, and the bolt 73 is threadedly connected to the side wall of the aggregate weighing hopper 2.

[0044] In this embodiment, the conveyor belt 34 is arranged to be inclined upward towards its discharge end, and the lower part of the aggregate weighing hopper 2 is parallel to the length direction of the conveyor belt 34. To increase the capacity of the aggregate weighing hopper 2, in this embodiment, the aggregate weighing hopper 2 extends to the discharge end of the conveyor belt 34. Second baffles 24 abutting against the upper surface of the conveyor belt 34 are respectively protrudingly arranged on the opposite side walls of the lower part of the aggregate weighing hopper 2. The second baffles 24 extend to the discharge end of the conveyor belt 34. A third baffle 25 is fixedly connected between the two second baffles 24 and the aggregate weighing hopper 2, so that the aggregate weighing hopper 2 abuts against the upper surface of the conveyor belt mechanism 3, and the two third baffles 25 are arranged so that the discharge buckle eyes provided on the aggregate weighing hopper 2 reach the side wall of the aggregate weighing hopper 2 close to the discharge end of the conveyor belt mechanism 3.

[0045] The implementation principle of an aggregate weighing device according to an embodiment of the present application is as follows: Since the conveyor belt mechanism 3 is installed on the aggregate weighing hopper 2 through the connecting assembly 7, and the aggregate weighing hopper 2 is installed on the bracket 1 through the suspension assembly 4, and a weight sensor 5 is arranged on the suspension assembly 4, so that the weight sensor 5 weighs the conveyor belt mechanism 3, the aggregate weighing hopper 2, the suspension assembly 4, the connecting assembly 7, and the aggregate falling into the aggregate weighing hopper 2 and the conveyor belt mechanism 3. When weighing in a suspended manner, the aggregate weighing hopper 2 and other components below are weighed as a whole. The weighing range includes the overall weight change of the weighing device from feeding to discharging to the mixing device, and it is easy to obtain the weight change of the weighing device, and the weighing is accurate. Moreover, since the suspended weighing method is adopted and does not rely on the horizontal weighing of the conveyor belt 34, the conveyor belt 34 does not need to be horizontally arranged, and the conveyor belt mechanism 3 can be directly presented as being inclined upward along the conveying direction as a whole, so as to reduce the occupied volume of the overall device caused by the need to arrange a horizontally arranged conveyor belt 34 and an inclined conveyor belt 34 in the prior art, reduce the extra conveying path, and improve the conveying efficiency. Therefore, it is possible to reduce the occupied volume while achieving accurate measurement.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An aggregate weighing device, characterized in that: The invention comprises a support (1), an aggregate weighing bucket (2) arranged on the support (1), and a transmission belt mechanism (3) arranged below the aggregate weighing bucket (2); the support (1) is provided with a suspension assembly (4); the aggregate weighing bucket (2) is suspended on the support (1) via the suspension assembly (4); a weight sensor (5) is provided on the suspension assembly (4); the weight sensor (5) is electrically connected to a central control platform (6); the central control platform (6) is electrically connected to a controller (61); The controller (61) is electrically connected to the transmission belt mechanism (3); a connecting assembly (7) is provided on the aggregate weighing bucket (2), and the transmission belt mechanism (3) is installed on the aggregate weighing bucket (2) via the connecting assembly (7); the transmission belt mechanism (3) is arranged to be inclined upward along the conveying direction, the lower opening of the aggregate weighing bucket (2) abuts against the upper surface of the transmission belt mechanism (3), and a discharge port (23) is provided on the side wall of the aggregate weighing bucket (2) facing the conveying direction of the transmission belt mechanism (3).

2. An aggregate weighing device according to claim 1, characterized in that: The aggregate weighing bucket (2) comprises, from top to bottom, a first section (8) and a second section (9) fixedly connected to the first section (8); a hypotenuse parallel to the conveying direction of the transmission belt mechanism (3) is provided below the first section (8); the second section (9) is arranged as a rectangular tube; the length direction of the second section (9) is parallel to the conveying direction of the transmission belt mechanism (3); and the second section (9) extends to the discharge end of the transmission belt mechanism (3).

3. An aggregate weighing device according to claim 2, characterized in that: The inner wall of the aggregate weighing hopper (2) is provided with a first baffle (22), and a discharge port (23) is formed between the first baffle (22) and the aggregate weighing hopper (2).

4. An aggregate weighing device according to claim 3, characterized in that: The first baffle (22) is arranged in a bow-back shape in a radial cross section.

5. An aggregate weighing device according to claim 1, characterized in that: Four of the suspension components (4) and the weight sensors (5) are provided, and are respectively arranged at the four top corners of the aggregate weighing bucket (2).

6. An aggregate weighing device according to claim 1, characterized in that: The suspension assembly (4) comprises a first lifting eye (41) fixedly connected to the bracket (1), a second lifting eye (42) arranged below the first lifting eye (41), and a suspension arm (43) connected to the second lifting eye (42); third lifting eyes (51) are protrudingly provided on opposite end surfaces of the weight sensor (5) and are hung on the first lifting eye (41) and the second lifting eye (42); and the suspension arm (43) is fixedly connected to the side wall of the aggregate weighing bucket (2).

7. An aggregate weighing device according to claim 6, characterized in that: The weight sensor (5) is detachably connected to the third lifting ear (51).

8. An aggregate weighing device according to claim 1, characterized in that: The transmission belt mechanism (3) comprises a frame (31), two conveying rollers (32) rotatably connected to two ends of the frame (31), a plurality of supporting rollers (33) arranged on the frame (31), a transmission belt (34) wound around the two conveying rollers (32) and the plurality of supporting rollers (33), and a driving member (35) for driving one of the conveying rollers (32) to rotate, and the connecting assembly (7) comprises a connecting arm (72) arranged on a side wall of the frame (31), and the connecting arm (72) is fixedly connected to a side wall of the aggregate weighing bucket (2).

9. An aggregate weighing device according to claim 8, characterized in that: A plurality of connecting arms (72) are arranged at intervals along the length direction of the frame (31).

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