Sand conveying belt tensioning device for concrete production

Abstract

The utility model discloses a gravel conveying belt tensioning device for concrete production, and belongs to the technical field of conveying belts, the gravel conveying belt tensioning device comprises a conveying belt body and a fixing plate arranged in the conveying belt body, a first motor is installed at the lower end of the middle of the fixing plate, an output shaft of the first motor is fixedly connected with a lead screw, and the outer wall of the lead screw is in threaded connection with a first U-shaped frame; the lower end of the lead screw is fixedly connected with a limiting block, the lower end, located on the peripheral side of the first motor, of the fixing plate is fixedly connected with multiple sets of guide rods, the lead screw can be driven by the first motor to rotate, the lead screw can drive the first U-shaped frame to vertically move, and the guide rods can play a role in guiding the first U-shaped frame; and a limiting block can play a role in limiting the first U-shaped frame, so that the first U-shaped frame drives the second U-shaped frame to vertically move, and then the second U-shaped frame drives the tensioning roller to vertically move, so that the conveying belt main body can be tensioned, and better operation of the conveying belt main body is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of conveyor belts, and particularly to a tensioning device for sand and gravel conveyor belts used in concrete production. Background Art

[0002] Belt conveyor equipment relies on the friction between the driving pulley and the conveyor belt to transmit power. In order to ensure the normal and stable start and operation of the belt conveyor equipment, the conveyor belt must maintain a certain tension during startup (braking) and operation. Conveyor belt drive is a common and low-cost power transmission method, which has the characteristics of smooth movement, cleanliness, low noise, etc. Therefore, a large number of mechanical devices use conveyor belt drive as the power transmission method. The conveyor belt used in sand and gravel conveyor belt drive has a certain elasticity. After being used for a period of time, the elasticity of the conveyor belt will decrease and the length will become longer, resulting in the belt becoming looser and further affecting power transmission.

[0003] In the patented document with the authorized publication number CN209160686U, a conveyor belt tensioning device is disclosed, belonging to the technical field of transmission equipment, which is used to solve the problem that the conveyor belt will become longer under the action of tensile load during long-term operation, and the driving pulley will slip when driving the conveyor belt after the conveyor belt becomes longer, affecting the transmission of goods. The present utility model is designed with a conveyor belt mechanism and a tensioning component. A conveyor belt is connected between the driving pulley and the driven pulley of the conveyor belt mechanism, and a fixed shaft is arranged on one side of the conveyor belt; the tensioning component is provided with a base and at least one set of rod components. The base is fixedly connected to the fixed shaft, and one side of the base is rotatably connected to the rod component. One end of the rod component contacts the conveyor belt, and the relative position of the rod component and the base is adjusted through a positioning component. The positioning component includes a slider arranged on the rod component and a rack arranged on the base. In addition, the rod component can also extend to contact the conveyor belt at any length. The present utility model has the characteristics of convenient adjustment and simple structure.

[0004] Therefore, we propose another solution to solve this technical problem. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, this application provides a tensioning device for sand and gravel conveyor belts used in concrete production, which overcomes the deficiencies of the prior art and aims to solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a sand and gravel conveyor belt tensioning device for concrete production, comprising a conveyor belt main body and a fixed plate arranged inside the conveyor belt main body, a first motor is installed at the lower end of the middle part of the fixed plate, the output shaft of the first motor is fixedly connected to a screw rod, the outer wall of the screw rod is threadedly connected to a first U-shaped frame, the lower end of the screw rod is fixedly connected to a limiting block, the lower end of the fixed plate located on the peripheral side of the first motor is fixedly connected to a plurality of groups of guide rods, the plurality of groups of guide rods are slidably passed through the first U-shaped frame, the lower end of the first U-shaped frame is fixedly connected to a second U-shaped frame, the inner wall of the second U-shaped frame is rotatably connected to a tensioning roller, and the outer wall below the tensioning roller contacts the inner side of the conveyor belt main body.

[0007] By adopting the above technical solution, the first motor can drive the screw rod to rotate, and the screw rod can drive the first U-shaped frame to move vertically, and the guide rod can guide the first U-shaped frame, and the limit block can limit the first U-shaped frame, so that the first U-shaped frame can drive the second U-shaped frame to move vertically, and then the second U-shaped frame can drive the tensioning roller to move vertically, which can tension the conveyor belt body and facilitate better operation of the conveyor belt body.

[0008] As a preferred technical solution of the present application, the inner walls on both sides of the conveyor belt body are respectively connected to rotating rollers in a transmission manner, the rotating shafts on both sides of the two groups of rotating rollers are respectively connected to U-shaped plates in a rotation manner, the fixed plate is fixedly installed with the U-shaped plate, and the second U-shaped frame is located in the groove of the U-shaped plate.

[0009] By adopting the above technical solution, the transmission roller can be arranged to provide rotational support for the conveyor belt body, and the U-shaped plate can provide rotational support for the rotating roller.

[0010] As a preferred technical solution of the present application, one side of the two groups of U-shaped plates that are relatively arranged is fixedly connected to the same connecting plate, and the upper end of the connecting plate is fixedly connected to multiple groups of bristles, and the multiple groups of bristles are in contact with the outer wall of the conveyor belt body.

[0011] By adopting the above technical solution, the U-shaped plate can fix the connecting plate, so that the connecting plate can fix the bristles, and the bristles can clean the outer wall of the conveyor belt body.

[0012] As a preferred technical solution of the present application, a fixed block is fixedly connected to one side of one group of the U-shaped plates, a second motor is installed on the upper end of the fixed block, and the output shaft of the second motor is fixedly connected to the rotating shaft of one group of the rotating rollers.

[0013] By adopting the above technical solution, the U-shaped plate can fix the fixed block, the fixed block can fix the second motor, and the second motor can drive one set of rotating rollers to rotate.

[0014] As a preferred technical solution of the present application, the lower ends of the two U-shaped plates are respectively fixedly connected with supporting feet, and multiple groups of supporting feet are arranged in a rectangular array.

[0015] By adopting the above technical solution, the supporting feet can support the U-shaped plate.

[0016] As a preferred technical solution of the present application, a collection box is arranged between two of the supporting feet located below the bristles.

[0017] By adopting the above technical solution, the collection box can collect the sand and gravel cleaned by the bristles.

[0018] As a preferred technical solution of the present application, two guiding rollers are rotatably connected to the opposite sides of the two U-shaped plates, and the guiding rollers are in contact with the main body of the conveyor belt.

[0019] By adopting the above technical solution, the U-shaped plate can rotatably support the guiding roller, and the guiding roller can guide the main body of the conveyor belt, further facilitating the adjustment of the tension of the main body of the conveyor belt.

[0020] The beneficial effects of the present application:

[0021] The first motor can drive the lead screw to rotate, the lead screw can drive the first U-shaped frame to move vertically, the guiding rod can guide the first U-shaped frame, and the limiting block can limit the first U-shaped frame, so that the first U-shaped frame drives the second U-shaped frame to move vertically, and then the second U-shaped frame drives the tensioning roller to move vertically, which can tension the main body of the conveyor belt and facilitate the better operation of the main body of the conveyor belt. Description of the Drawings

[0022] Figure 1 is the front partial sectional view of the present application;

[0023] Figure 2 is the right partial sectional view of the present application;

[0024] Figure 3 is of the present application Figure 1 the enlarged view at A in.

[0025] In the figure: 1. Conveyor belt main body; 2. Fixed plate; 3. First motor; 4. Lead screw; 5. Limit block; 6. Guide rod; 7. First U-shaped frame; 8. Second U-shaped frame; 9. Tensioning roller; 10. Connecting plate; 11. Fixed block; 12. Second motor; 13. Rotating roller; 14. U-shaped plate; 15. Guide roller; 16. Brush hair; 17. Support leg; 18. Collection box. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0027] Refer to Figures 1-3 , a tensioning device for a sand and gravel conveyor belt used in concrete production, including a conveyor belt main body 1 and a fixed plate 2 arranged inside the conveyor belt main body 1. A first motor 3 is installed at the lower end of the middle of the fixed plate 2. The output shaft of the first motor 3 is fixedly connected with a lead screw 4. The outer wall of the lead screw 4 is threadedly connected with a first U-shaped frame 7. A limit block 5 is fixedly connected to the lower end of the lead screw 4. Multiple guide rods 6 are fixedly connected to the lower end of the fixed plate 2 around the first motor 3. The multiple guide rods 6 slidably pass through the first U-shaped frame 7. A second U-shaped frame 8 is fixedly connected to the lower end of the first U-shaped frame 7. A tensioning roller 9 is rotatably connected to the opposite inner walls of the second U-shaped frame 8. The outer wall below the tensioning roller 9 is in contact with the inner side of the conveyor belt main body 1.

[0028] During use, the first motor 3 can drive the lead screw 4 to rotate, and the lead screw 4 can drive the first U-shaped frame 7 to move vertically. The guide rods 6 can play a guiding role for the first U-shaped frame 7, and the limit block 5 can play a limiting role for the first U-shaped frame 7, so that the first U-shaped frame 7 drives the second U-shaped frame 8 to move vertically, and then the second U-shaped frame 8 drives the tensioning roller 9 to move vertically, which can play a tensioning role for the conveyor belt main body 1 and facilitate the better operation of the conveyor belt main body 1.

[0029] Refer to Figure 1 and Figure 2, rotating rollers 13 are respectively connected to the inner walls on both sides of the conveyor belt main body 1 in a transmission manner. The rotating shafts on both sides of the two groups of rotating rollers 13 are respectively rotatably connected to U-shaped plates 14. The fixing plate 2 is fixedly installed with the U-shaped plates 14, and the second U-shaped frame 8 is located at the groove of the U-shaped plates 14. The setting of the transmission rollers can play a role in rotatably supporting the conveyor belt main body 1, and the U-shaped plates 14 can play a role in rotatably supporting the rotating rollers 13. One side of one of the U-shaped plates 14 is fixedly connected to a fixing block 11. A second motor 12 is installed at the upper end of the fixing block 11. The output shaft of the second motor 12 is fixedly connected to the rotating shaft of one of the rotating rollers 13. The U-shaped plates 14 can play a role in fixing the fixing block 11, the fixing block 11 can play a role in fixing the second motor 12, and the second motor 12 can drive one of the rotating rollers 13 to rotate.

[0030] Refer to Figure 1 and Figure 3 , on the opposite sides of the two groups of U-shaped plates 14, the same connecting plate 10 is fixedly connected. Multiple groups of bristles 16 are fixedly connected to the upper end of the connecting plate 10. The multiple groups of bristles 16 are in contact with the outer wall of the conveyor belt main body 1. The U-shaped plates 14 can play a role in fixing the connecting plate 10, so that the connecting plate 10 can play a role in fixing the bristles 16, and then the bristles 16 can play a role in cleaning the outer wall of the conveyor belt main body 1. The lower ends of the two groups of U-shaped plates 14 are respectively fixedly connected to support feet 17, and multiple groups of support feet 17 are arranged in a rectangular array. The support feet 17 can play a role in supporting the U-shaped plates 14. A collection box 18 is arranged between two of the support feet 17 below the bristles 16. The collection box 18 can play a role in collecting the sand and gravel cleaned by the bristles 16.

[0031] Refer to Figure 1 , on the opposite sides of the two groups of U-shaped plates 14, two groups of guide rollers 15 are rotatably connected. The guide rollers 15 are in contact with the conveyor belt main body 1. The U-shaped plates 14 can play a role in rotatably supporting the guide rollers 15, and the guide rollers 15 can play a role in guiding the conveyor belt main body 1, further facilitating the adjustment of the tension of the conveyor belt main body 1.

[0032] Working principle: When using the present utility model, the second motor 12 can drive the rotating roller 13 to rotate. The rotating roller 13 and the conveyor belt main body 1 cooperate to convey sand and gravel. When the conveyor belt main body 1 is conveying, the brush hairs 16 can clean the conveyor belt main body 1. When the conveyor belt main body 1 has a tensioning problem, the first motor 3 can drive the lead screw 4 to rotate. The lead screw 4 can drive the first U-shaped frame 7 to move vertically. The guide rod 6 can guide the first U-shaped frame 7, and the limit block 5 can limit the first U-shaped frame 7, so that the first U-shaped frame 7 drives the second U-shaped frame 8 to move vertically, and then the second U-shaped frame 8 drives the tensioning roller 9 to move vertically, which can tension the conveyor belt main body 1 and facilitate the better operation of the conveyor belt main body 1.

[0033] The foregoing is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tensioning device for a sand and gravel conveyor belt for concrete production, comprising a conveyor belt body (1) and a fixing plate (2) arranged inside the conveyor belt body (1), characterized in that: A first motor (3) is installed at the lower end of the middle part of the fixed plate (2); the output shaft of the first motor (3) is fixedly connected to a screw rod (4); the outer wall of the screw rod (4) is threadedly connected to a first U-shaped frame (7); the lower end of the screw rod (4) is fixedly connected to a limiting block (5); the lower end of the fixed plate (2) located on the peripheral side of the first motor (3) is fixedly connected to a plurality of groups of guide rods (6); the plurality of groups of guide rods (6) are slidably arranged through the first U-shaped frame (7); the lower end of the first U-shaped frame (7) is fixedly connected to a second U-shaped frame (8); the inner wall of the second U-shaped frame (8) is rotatably connected to a tensioning roller (9); the outer wall below the tensioning roller (9) contacts the inner side of the conveyor belt body (1).

2. The sand and gravel conveyor belt tensioning device for concrete production according to claim 1 is characterized in that: The inner walls on both sides of the conveyor belt body (1) are respectively connected to rotating rollers (13) in a transmission manner, and the rotating shafts on both sides of the two groups of rotating rollers (13) are respectively connected to U-shaped plates (14) in a rotation manner. The fixed plate (2) is fixedly mounted on the U-shaped plate (14), and the second U-shaped frame (8) is located in a groove of the U-shaped plate (14).

3. The tensioning device for a sand and gravel conveyor belt for concrete production according to claim 2 is characterized in that: One side of the two groups of U-shaped plates (14) disposed opposite to each other is fixedly connected to the same connecting plate (10), and the upper end of the connecting plate (10) is fixedly connected to multiple groups of bristles (16), and the multiple groups of bristles (16) are in contact with the outer wall of the conveyor belt body (1).

4. The sand and gravel conveyor belt tensioning device for concrete production according to claim 2 is characterized in that: A fixed block (11) is fixedly connected to one side of one group of the U-shaped plates (14), a second motor (12) is mounted on the upper end of the fixed block (11), and an output shaft of the second motor (12) is fixedly connected to a rotating shaft of one group of the rotating rollers (13).

5. The sand and gravel conveyor belt tensioning device for concrete production according to claim 4 is characterized in that: The lower ends of the two groups of U-shaped plates (14) are respectively fixedly connected with supporting feet (17), and the supporting feet (17) are arranged in a rectangular array in multiple groups.

6. The sand and gravel conveyor belt tensioning device for concrete production according to claim 5, characterized in that: A collection box (18) is provided between two of the supporting feet (17) below the bristles (16).

7. The sand and gravel conveyor belt tensioning device for concrete production according to claim 3 is characterized in that: Two sets of guide rollers (15) are rotatably connected to one side of the two sets of U-shaped plates (14) that are arranged opposite to each other, and the guide rollers (15) are in contact with the conveyor belt body (1).

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