Chain transmission type material metering and conveying device

Abstract

The utility model belongs to the technical field of material conveying and metering, and particularly relates to a chain transmission type material metering and conveying device which comprises a rack, rotating shafts are rotationally installed on the rack and comprise the first rotating shaft and the second rotating shaft, and the first rotating shaft and the second rotating shaft are each provided with a material conveying chain wheel and are connected through a material conveying chain. A material conveying carrier is mounted on the conveying chain; a blanking supporting mechanism and a weighing mechanism are installed on the machine frame, a material conveying carrier area above the blanking supporting mechanism is a blanking area, and a material conveying carrier area above the weighing mechanism is a weighing area. A driving mechanism is installed on the machine frame, and at least one rotating shaft is connected with the driving mechanism. When materials fall onto the material conveying carrier in the material falling area, only the material conveying carrier in the material falling area is impacted, and the material conveying carrier in the weighing area is not impacted, so that accurate metering is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of material conveying and metering, and particularly relates to a chain-driven material metering and conveying device. Background Art

[0002] In the production process of new building materials such as aerated concrete blocks, bricks and panels, it is necessary to weigh and measure yellow sand and convey it to a ball mill for grinding at a certain flow rate. In the existing technology, a belt scale is mainly used to measure and convey yellow sand. The belt scale includes a frame, a weighing mechanism is set at the bottom of the frame, a motor or other power mechanism is set on the frame to drive the roller to rotate, the roller and the belt support transmission cooperate, and the rotation of the roller drives the belt to move. A weighing mechanism is set under one section of the belt, and the gravity of the belt and the material on it is transmitted to the weighing mechanism, and the conveyed weight of the material is obtained by calculation.

[0003] In actual use, the impact force generated when yellow sand falls and the change in warehouse pressure will have a certain adverse effect on the weighing mechanism, making the weighing results inaccurate. In addition, during the transportation process, the conveyor belt is prone to deviate and cause scratches. Utility Model Content

[0004] The purpose of the present utility model is to provide a chain-driven material metering and conveying device to solve the problems raised in the above-mentioned background technology.

[0005] A chain-driven material metering and conveying device comprises a frame, on which a rotating shaft is rotatably mounted, the rotating shaft comprising a first rotating shaft and a second rotating shaft, both of which are equipped with a feed sprocket, the first rotating shaft and the second rotating shaft are connected by a feed chain, and a feed carrier is installed on the feed chain; a blanking support mechanism and a weighing mechanism are installed on the frame between the first rotating shaft and the second rotating shaft, the blanking support mechanism and the weighing mechanism are arranged in sequence along the material conveying direction, the feed carrier area above the blanking support mechanism is the blanking area, and the feed carrier area above the weighing mechanism is the weighing area; a driving mechanism is installed on the frame, wherein at least one of the rotating shafts is connected to the driving mechanism.

[0006] As a further improvement, the blanking support mechanism includes a chain support frame fixedly mounted on the frame, and the chain support frame abuts against the rollers of the feeding chain in the blanking area.

[0007] As a further improvement, the blanking support mechanism includes a third rotating shaft, which is rotatably connected to the frame, and a support sprocket is installed on the third rotating shaft, which is meshed with the feed chain, and the rotating shaft connected to the driving mechanism is the driving shaft, and the third rotating shaft is connected to a synchronization mechanism that makes the third rotating shaft rotate synchronously with the driving shaft.

[0008] As a further improvement, the synchronization mechanism includes a transmission chain, and one end of the driving shaft and the third rotating shaft are both equipped with matching transmission sprockets. The driving shaft and the third rotating shaft are connected by a transmission chain, and the transmission chain is connected to a tensioning mechanism.

[0009] As a further improvement, the tensioning mechanism includes a base plate, which is fixedly connected to the frame, and mounting brackets are installed on both sides of the base plate. A threaded hole is provided in the top center of the two mounting brackets, and a bolt is threadedly connected to the threaded hole. The bolt head is located below the threaded hole, and a sliding shaft is connected between the two bolts. The sliding shaft is located between the threaded hole and the bolt head. A shaft hole is provided at both ends of the sliding shaft, and the two bolts slide through the two shaft holes respectively. An idle sprocket is rotatably installed in the middle of the sliding shaft, and a spring is abutted and connected between the sliding shaft and the bolt head. The idle sprocket is meshed with the transmission chain, and a hole for the bolt to pass through is provided on the base plate.

[0010] As a further improvement, the driving mechanism includes a driving motor, which is fixedly connected to the frame, and the output end of the driving motor is equipped with a dual-axis reducer, and the output end of the dual-axis reducer is equipped with a transmission shaft, and the two ends of the transmission shaft are respectively equipped with angle reducers, wherein the output end of one of the angle reducers is connected to the first rotating shaft, and the output end of the other angle reducer is connected to the second rotating shaft.

[0011] As a further improvement, the weighing mechanism includes a metering shaft movably mounted on the frame, the metering shaft is connected to a weighing sensor, a weighing sprocket is mounted on the metering shaft, and the weighing sprocket engages with the upper part of the feed chain in the weighing area.

[0012] As a further improvement, the conveying carrier is a chain plate fixedly installed on the conveying chain.

[0013] As a further improvement, the conveying carrier is a belt fixedly mounted on the conveying chain.

[0014] As a further improvement, a material discharge bin is installed above the frame, and the material discharge bin is located above the material delivery carrier of the material discharge area. To achieve the above technical objectives, the technical solutions of the present utility model are as follows:

[0015] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] The utility model is provided with a first rotating shaft and a second rotating shaft which are connected by a feeding chain transmission, a material dropping area and a weighing area are provided between the first rotating shaft and the second rotating shaft, a material dropping support mechanism is provided in the material dropping area, when the pressure generated by the material dropping onto the feeding carrier in the material dropping area or the material in the lower hopper changes, under the supporting action of the material dropping support mechanism, only the feeding carrier in the material dropping area will be affected by the stamping, and the weighing mechanism in the weighing area will not be affected, so that the measurement is more accurate.

[0017] The conveying carrier is driven by the conveying sprocket and the conveying chain to convey the material, so that the conveying carrier will not deviate during the conveying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 It is a structural diagram of the synchronization mechanism of the utility model;

[0022] Figure 5 The schematic diagram of the chain plate mechanism of the present invention.

[0023] Among them: 1. Angle reducer; 2. Double-axis reducer; 3. Drive motor; 4. Frame; 5. Nut; 6. Feed carrier; 7. Synchronizing mechanism; 8. Feed sprocket; 9. Second rotating shaft; 10. Weighing mechanism; 11. Weighing sensor; 12. First rotating shaft; 13. Third rotating shaft; 15. Support sprocket; 16. Weighing sprocket; 17. Drive sprocket; 18. Drive chain; 19. Sliding shaft; 20. Idle sprocket; 21. Spring; 22. Bolt; 23. Mounting frame; 24. Bottom plate; 25. Tensioning mechanism; 27. Measuring shaft; 28. Drive shaft; 29. ​​Unloading silo. DETAILED DESCRIPTION

[0024] The present invention is further described below with reference to specific embodiments and accompanying drawings. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some components in the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0025] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] Reference Figure 1-5 A chain-driven material metering and conveying device includes a frame 4, a rotating shaft is rotatably mounted on the frame 4, the rotating shaft includes a first rotating shaft 12 and a second rotating shaft 9, the first rotating shaft 12 and the second rotating shaft 9 are both mounted with a feed sprocket 8, the first rotating shaft 12 and the second rotating shaft 9 are connected by a feed chain, a feed carrier 6 is mounted on the feed chain, the feed carrier 6 is used to receive and convey materials, the feed sprocket 8 and the feed chain drive the feed carrier 6 to convey materials, so that the feed carrier 6 will not deviate during the conveying process;

[0027] A material drop support mechanism and a weighing mechanism 10 are installed on the frame 4 between the first rotating shaft 12 and the second rotating shaft 9. The material drop support mechanism is used to offset the impact force of the material falling into the drop area, and the weighing mechanism 10 is used to weigh the weight of the material. The material drop support mechanism and the weighing mechanism 10 are arranged in sequence along the material conveying direction. The area of ​​the material feed carrier 6 above the material drop support mechanism is the material drop area, and the area of ​​the material feed carrier 6 above the weighing mechanism 10 is the weighing area.

[0028] A driving mechanism is installed on the frame 4, wherein at least one rotating shaft is connected to the driving mechanism. The rotating shaft connected to the driving mechanism is a driving shaft. The driving mechanism is used to drive the driving shaft to rotate, so that the driving shaft drives the conveying carrier 6 to transfer the conveyed material.

[0029] In this embodiment, the material falls onto the conveying carrier 6 in the material dropping area, which has an impact on the conveying carrier 6 in the material dropping area. The setting of the material dropping support mechanism can offset the impact force of the material on the conveying carrier 6, so that the weighing mechanism 10 is not affected by the impact force during weighing, making the weighing result more accurate.

[0030] The material dropping support mechanism includes a chain support frame fixedly mounted on the frame 4, the chain support frame is in contact with the rollers of the feed chain in the material dropping area, and the material falls onto the feed carrier 6. The impact force will be transmitted to the feed chain by the feed carrier 6, and the chain support frame will offset the impact force; in this embodiment, the material dropping support mechanism can also be a feed carrier 6 support frame fixedly mounted on the frame 4, the feed carrier 6 support frame is in contact with the feed carrier 6 in the material dropping area, and the material falls onto the feed carrier 6. The impact force will be offset by the feed carrier 6 support frame.

[0031] The blanking support mechanism includes a third rotating shaft 13, which is rotatably connected to the frame 4, and a supporting sprocket 15 is installed on the third rotating shaft 13, which is meshed with the feed chain, and the third rotating shaft 13 is connected to a synchronization mechanism 7 that makes the third rotating shaft 13 rotate synchronously with the driving shaft. The material falls on the feed carrier 6 in the blanking area, and the synchronization mechanism 7 can make the third rotating shaft 13 rotate synchronously with the driving shaft. The impact force generated by the material on the feed carrier 6 will be offset by the third rotating shaft 13, and the impact force of the falling material will not affect the weighing in the weighing area.

[0032] The synchronization mechanism 7 includes a transmission chain 18, and a driving shaft and one end of the third rotating shaft 13 are both equipped with matching transmission sprockets 17. The driving shaft and the third rotating shaft 13 are connected by the transmission chain 18. The driving shaft and the third rotating shaft 13 are connected through the transmission chain 18 to achieve synchronous rotation of the driving shaft and the third rotating shaft 13. The transmission chain 18 is connected to a tensioning mechanism 25. The transmission chain 18 will become loose during use. After becoming loose, the driving shaft and the third rotating shaft 13 will not be able to achieve synchronous rotation, so a tensioning mechanism 25 is set. The tensioning mechanism 25 can keep the transmission chain 18 in a taut state at all times to ensure that the driving shaft and the third rotating shaft 13 achieve synchronous rotation.

[0033] The tensioning mechanism 25 includes a base plate 24, which is fixedly connected to the frame 4. Mounting brackets 23 are installed on both sides of the base plate 24. The top centers of the two mounting brackets 23 are provided with threaded holes. Bolts 22 are threadedly connected in the threaded holes. The heads of the bolts 22 are located below the threaded holes. A sliding shaft 19 is connected between the two bolts 22. The sliding shaft 19 is located between the threaded holes and the heads of the bolts 22. Axis holes are provided at both ends of the sliding shaft 19. The two bolts 22 slide through the two shaft holes respectively. An idle sprocket 20 is rotatably installed in the middle of the sliding shaft 19. A spring 21 is abutted and connected between the sliding shaft 19 and the heads of the bolts 22. The idle sprocket 20 is meshed with the transmission chain 18. There is a spring 21 on the base plate 24 for the bolts 22 to pass through. The hole passed through; in a specific implementation, the middle part of the bolt 22 can be set as a light rod to facilitate the sliding of the sliding shaft 19. The mounting bracket 23 is threadedly connected to the bolt 22. The bolt 22 can be rotated to adjust the up and down movement of the bolt 22. When the idle sprocket 20 and the transmission chain 18 are in a tensioned state, the bolt 22 moves upward, and the bottom of the bolt 22 will squeeze the spring 21 with the sliding shaft 19. When the transmission chain 18 becomes loose, the idle sprocket 20 will move up under the elastic force of the spring 21, and continue to keep the transmission chain 18 in a tensioned state; one of the two bolts 22 can be replaced with a guide rod, and the lifting and lowering of the idle sprocket 20 can also be adjusted with only one bolt 22, and the guide rod plays a guiding role.

[0034] The driving mechanism includes a driving motor 3, which is fixedly connected to the frame 4. The output end of the driving motor 3 is installed with a dual-axis reducer 2, and the output end of the dual-axis reducer 2 is installed with a horizontally arranged transmission shaft 28. The two ends of the transmission shaft 28 are respectively installed with angle reducers 1, wherein the output end of one angle reducer 1 is connected to the first rotating shaft 12, and the output end of the other angle reducer 1 is connected to the second rotating shaft 9; the driving motor 3 is located in the middle of the transmission shaft 28, and the driving motor 3 rotates the transmission shaft 28 under the action of the dual-axis reducer 2; the transmission shaft 28 drives the first rotating shaft 12 and the second rotating shaft 9 to rotate synchronously under the action of the angle reducer 1, and the rotation direction is the same.

[0035] The first rotating shaft 12, the second rotating shaft 9 and the third rotating shaft 13 can also adopt three sets of motors and reducers to realize the synchronous operation of the three shafts in the form of electronic control.

[0036] The weighing mechanism 10 includes a metering shaft 27 movably mounted on the frame 4. The metering shaft 27 is connected to the weighing sensor 11, which can be specifically a gravity sensor. A weighing sprocket 16 is installed on the metering shaft 27, and the weighing sprocket 16 is engaged with the upper part of the feed chain in the weighing area; a corresponding mounting hole is provided between the third rotating shaft 13 and the second rotating shaft 9 on the frame 4, and a metering shaft 27 is installed in the mounting hole. Two weighing sprockets 16 corresponding to the positions of the two feed sprockets 8 are installed on the metering shaft 27, and the weighing sprocket 16 is engaged with the feed chain. The weight of the material on the conveying chain can be transmitted to the gravity sensor for measurement through the weighing sprocket 16, the conveying sprocket and the metering shaft 27. The gravity sensor is electrically connected to a controller, and the controller calculates the weight of the material based on the gravity information measured by the gravity sensor.

[0037] In a specific implementation, one or more gravity sensors may be used. When one gravity sensor is used, the gravity sensor is fixed to the middle of the metering shaft 27 , and weight transfer can be achieved by the weighing sprocket 16 on the metering shaft 27 .

[0038] The conveying carrier 6 is a chain plate fixedly mounted on the conveying chain. Baffles are mounted on both ends of the chain plate to prevent materials from sliding off the ends of the chain plate. The chain plate and the chain are connected by bolts 22 .

[0039] The conveying carrier 6 is a belt fixedly mounted on the conveying chain, and the belt and the chain are connected by bolts 22 .

[0040] A lower material bin 29 is installed above the frame 4. The lower material bin 29 is located above the feed carrier 6 in the material dropping area. The material falling from the lower material bin 29 can just fall onto the feed carrier 6 in the material dropping area. In actual use, the lower material bin 29 can be equipped with materials, and the material dropping can be controlled for metered feeding. It can also be used in conjunction with a feeding belt conveyor, and the usage scenario is flexible.

[0041] In summary, in actual use, the material is dropped onto the feed carrier 6 from above between the third rotating shaft 13 and the first rotating shaft 12, and the material moves along with the feed carrier 6. When it moves to the metering shaft 27, the gravity sensor measures the weight of the material and calculates the unloading per unit time to complete the metering and conveying process. Due to the setting of the blanking support mechanism, the adverse effects of material impact and warehouse pressure on the weighing mechanism 10 can be avoided, making the measurement more accurate.

[0042] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A chain-driven material metering and conveying device, comprising a frame (4), characterized in that: A rotating shaft is rotatably mounted on the frame (4), and the rotating shaft includes a first rotating shaft (12) and a second rotating shaft (9). Both the first rotating shaft (12) and the second rotating shaft (9) are mounted with a feed sprocket (8). The first rotating shaft (12) and the second rotating shaft (9) are connected by a feed chain, and a feed carrier (6) is mounted on the feed chain. A material drop support mechanism and a weighing mechanism (10) are installed on the frame (4) between the first rotating shaft (12) and the second rotating shaft (9). The material drop support mechanism and the weighing mechanism (10) are arranged in sequence along the material conveying direction. The area of ​​the material delivery carrier (6) above the material drop support mechanism is the material drop area, and the area of ​​the material delivery carrier (6) above the weighing mechanism (10) is the weighing area. A driving mechanism is installed on the frame (4), wherein at least one of the rotating shafts is connected to the driving mechanism.

2. The chain-driven material metering and conveying device according to claim 1, characterized in that: The blanking support mechanism comprises a chain support frame fixedly mounted on a frame (4), and the chain support frame abuts against the rollers of the feeding chain in the blanking area.

3. The chain-driven material metering and conveying device according to claim 1 or 2, characterized in that: The blanking support mechanism includes a third rotating shaft (13), the third rotating shaft (13) is rotatably connected to the frame (4), a supporting sprocket (15) is mounted on the third rotating shaft (13), the supporting sprocket (15) is meshedly connected to the feeding chain, the rotating shaft connected to the driving mechanism is a driving shaft, and the third rotating shaft (13) is connected to a synchronizing mechanism (7) that enables the third rotating shaft (13) to rotate synchronously with the driving shaft.

4. The chain-driven material metering and conveying device according to claim 3, characterized in that: The synchronization mechanism (7) includes a transmission chain (18), one end of the driving shaft and one end of the third rotating shaft (13) are both equipped with a matching transmission sprocket (17), the driving shaft and the third rotating shaft (13) are connected through the transmission chain (18), and the transmission chain (18) is connected to a tensioning mechanism (25).

5. The chain-driven material metering and conveying device according to claim 4, characterized in that: The tensioning mechanism (25) includes a base plate (24), the base plate (24) is fixedly connected to the frame (4), and mounting brackets (23) are installed on both sides of the base plate (24), and threaded holes are provided at the top centers of the two mounting brackets (23), and bolts (22) are threadedly connected in the threaded holes. The heads of the bolts (22) are located below the threaded holes, and a sliding shaft (19) is connected between the two bolts (22), and the sliding shaft (19) is located between the threaded holes and the heads of the bolts (22). Both ends of the sliding shaft (19) are provided with shaft holes, and the two bolts (22) slide through the two shaft holes respectively. An idle sprocket (20) is rotatably installed in the middle of the sliding shaft (19), and a spring (21) is abutted and connected between the sliding shaft (19) and the heads of the bolts (22). The idle sprocket (20) is meshed with the transmission chain (18), and a hole for the bolts (22) to pass through is provided on the base plate (24).

6. The chain-driven material metering and conveying device according to claim 1, characterized in that: The driving mechanism comprises a driving motor (3), the driving motor (3) is fixedly connected to the frame (4), a dual-axis reducer (2) is installed at the output end of the driving motor (3), a transmission shaft (28) is installed at the output end of the dual-axis reducer (2), and a rotation angle reducer (1) is installed at both ends of the transmission shaft (28), wherein the output end of one rotation angle reducer (1) is connected to the first rotating shaft (12), and the output end of the other rotation angle reducer (1) is connected to the second rotating shaft (9).

7. The chain-driven material metering and conveying device according to claim 1, characterized in that: The weighing mechanism (10) includes a metering shaft (27) movably mounted on the frame (4), the metering shaft (27) being connected to a weighing sensor (11), a weighing sprocket (16) being mounted on the metering shaft (27), and the weighing sprocket (16) being engaged with the upper portion of the feed chain of the weighing area.

8. The chain-driven material metering and conveying device according to claim 1, characterized in that: The conveying carrier (6) is a chain plate fixedly mounted on the conveying chain.

9. The chain-driven material metering and conveying device according to claim 1, characterized in that: The conveying carrier (6) is a belt fixedly mounted on the conveying chain.

10. The chain-driven material metering and conveying device according to claim 1, characterized in that: A material discharge bin (29) is installed above the frame (4), and the material discharge bin (29) is located above the material delivery carrier (6) in the material discharge area.

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