Scraper machine capable of adjusting tension degree of scraper chain

Abstract

The utility model discloses a scraper conveyor capable of adjusting the tension degree of a scraper chain, and particularly relates to the technical field of scraper conveyors, which comprises a scraper conveyor body, a machine head is fixedly arranged at one end of the scraper conveyor body, a machine tail is fixedly arranged at the other end of the scraper conveyor body, and a tensioning mechanism is arranged on one side of the machine tail. The tensioning mechanism comprises a plurality of electric telescopic rods fixedly arranged on one side of the machine tail, sliding blocks are fixedly arranged at the output ends of the electric telescopic rods, a plurality of sliding grooves are formed in the inner wall of the scraper machine body, the sliding blocks are in sliding connection with the sliding grooves, a rotating rod is rotationally arranged on one side of each sliding block, and a plurality of first chain wheels are fixedly arranged on the surface of each rotating rod; and the surface of the first chain wheel is engaged with a scraper chain. According to the scraper conveyor, efficient and stable transportation of materials is achieved, working efficiency is improved, the electric telescopic rod is used for driving the sliding block, the rotating rod and the first chain wheel, the tensioning degree of the scraper chain can be flexibly adjusted, and stable operation of the scraper conveyor is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of scraper conveyor technology, and more specifically, to a scraper conveyor with adjustable scraper chain tension. Background Technology

[0002] A scraper conveyor is a conveying machine that uses a multi-section detachable chute connected together as its body as a load-bearing structure, and uses scrapers on a traction chain to push bulk materials. It can be used to convey various powdery, granular, or lumpy bulk materials with good flowability. Scraper conveyors have a small body height, which is convenient for loading, and the body length is easy to adjust, so they are widely used in most coal mines.

[0003] However, during long-term operation of existing scraper conveyors, the horseshoe rings connecting the chain and the scraper wear out severely, causing the chain to lengthen. This leads to a malfunction of the tail tensioning device, making it impossible to adjust the chain. Consequently, the chain needs to be cut, resulting in long maintenance time and low production efficiency.

[0004] A search revealed that Chinese patent CN222225120U discloses a scraper conveyor with adjustable scraper chain tension. This structure allows for convenient adjustment of the tension of the scraper conveyor's tensioning device by rotating a nut to adjust the length of the screw. Operation is simple; the operator only needs to rotate the handle on the nut, requiring no complex tools or steps. Two U-shaped support frames are fixedly connected and equipped with screws, providing sufficient support and stability for the scraper conveyor, ensuring it does not shake or shift during operation. Furthermore, the limiting plate on the inner wall of the U-shaped support frame cooperates with the groove on the outer wall of the connector to effectively limit the left-right swaying of the connector, ensuring the accuracy of the adjustment process. The handle on the nut further facilitates the rotation operation. The removable top cover on the scraper conveyor body prevents dust from being emitted during operation, improving the working environment, and the transparent plate on one side of the top cover allows for easy observation of the machine's internal condition.

[0005] However, in actual use, when adjusting the chain tension, the operator needs to turn the handles on both nuts simultaneously. This requires a high level of coordination from the operator and is quite cumbersome. In practice, the two handles may rotate at different speeds, resulting in uneven chain tension on both sides, which affects the normal operation of the scraper conveyor and the service life of the chain. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a scraper conveyor with adjustable scraper chain tension to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A scraper conveyor with adjustable scraper chain tension includes a scraper conveyor body, a machine head is fixedly provided at one end of the scraper conveyor body, a machine tail is fixedly provided at the other end of the scraper conveyor body, and a tensioning mechanism is provided on one side of the machine tail.

[0009] The tensioning mechanism includes multiple electric telescopic rods fixedly installed on one side of the tail of the machine. A slider is fixedly installed at the output end of the electric telescopic rod. Multiple sliding grooves are opened on the inner wall of the scraper machine body. The slider is slidably connected to the sliding grooves. A rotating rod is rotatably installed on one side of the slider. Multiple first sprockets are fixedly installed on the surface of the rotating rod. A scraper chain is meshed on the surface of the first sprockets.

[0010] A motor is fixedly installed on one side of the scraper conveyor body. A rotating shaft is fixedly installed at the output end of the motor. Multiple second sprockets are fixedly installed on the outside of the rotating shaft. The second sprockets mesh with the scraper chain.

[0011] By adopting the above technical solution: the electric telescopic rod pushes the slider, which drives the first sprocket to adjust the tension of the scraper chain, ensuring stable operation of the equipment. In addition, the motor drives the scraper chain to circulate through the rotating shaft and the second sprocket, realizing smooth material conveying and improving the overall reliability and conveying efficiency of the scraper conveyor.

[0012] As a further description of the above technical solution: an auxiliary mechanism is provided on one side of the scraper chain. The auxiliary mechanism includes multiple fixed frames fixedly disposed on one side of the scraper chain. Scrapers are inserted into the interior of the fixed frames, and the scrapers are connected to the fixed frames by bolts.

[0013] A discharge frame is provided through one side of the tail section, and the bottom of the discharge frame is inclined.

[0014] By adopting the above technical solutions, the conveying efficiency of materials in the scraper conveyor is significantly improved. When the scraper is worn or damaged, it is easy to remove the bolts for replacement, which reduces maintenance costs and difficulties. Moreover, it effectively allows materials to be discharged more smoothly from the discharge frame, reduces material residue, ensures smooth discharge, and improves the overall performance and working efficiency of the equipment.

[0015] As a further description of the above technical solution: a baffle is inserted into the inside of the discharge frame, a handle is fixedly installed on the top of the baffle, an L-shaped block is fixedly installed on one side of the slider, a stabilizing plate is fixedly installed at one end of the L-shaped block, and an anti-corrosion layer is fixedly installed on the inner wall of the scraper machine body, the anti-corrosion layer being an epoxy resin coating.

[0016] By adopting the above technical solution, the baffle position can be flexibly controlled by operating the baffle with the handle, and the discharge speed and flow rate can be precisely adjusted to meet different production needs, improve the flexibility of equipment use, ensure the smoothness of the scraper chain tension adjustment process, ensure the stability of the scraper chain movement trajectory, and facilitate stable material conveying.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. By setting up a tensioning mechanism, compared with the existing technology, after the motor is turned on, the rotating shaft drives the second sprocket to rotate, driving the scraper chain to circulate. The scraper chain drives the first sprocket and rotating rod to rotate, which has strong stability. At the same time, the scraper moves with the scraper chain to push the material to be conveyed, realizing efficient and stable material transportation, improving work efficiency. In addition, by using an electric telescopic rod to drive the slider, which drives the rotating rod and the first sprocket, the tension of the scraper chain can be flexibly adjusted, avoiding slippage and chain derailment caused by insufficient tension, ensuring the stable operation of the scraper machine. Moreover, the L-shaped block and the stabilizing plate enhance the sliding stability of the slider, ensuring the precise adjustment of the position of the rotating rod and sprocket, making the scraper chain movement trajectory stable, preventing material conveying obstruction, and ensuring the continuity and efficiency of production.

[0019] 2. By setting up an auxiliary mechanism, compared with the existing technology, the scraper is installed in the fixed frame by bolts. The fixed frame is fixed on the scraper chain. The scraper moves with the chain to assist in pushing the material, making the conveying smoother. When the scraper is damaged or worn, it can be easily replaced by removing the bolts, which is simple to maintain and reduces downtime and costs. Moreover, the bottom of the discharge frame is inclined, which facilitates the smooth flow of material out of the tail of the machine. The internal baffle can be flexibly controlled by the operator through the handle to precisely adjust the discharge speed and flow rate to meet different production needs. In addition, the epoxy resin coating anti-corrosion layer on the inner wall of the scraper machine can effectively resist the corrosion of chemical substances in the material, greatly extending the service life of the equipment and ensuring continuous and efficient production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the overall frontal cross-sectional structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the tensioning mechanism of this utility model.

[0023] Figure 4 This is a schematic diagram of the auxiliary mechanism structure of this utility model.

[0024] Figure 5 This is a cross-sectional structural diagram of the auxiliary mechanism of this utility model.

[0025] The attached diagram is labeled as follows: 1. Scraper conveyor body; 2. Head; 3. Tail; 4. Electric telescopic rod; 5. Slider; 6. Slide rail; 7. Rotating rod; 8. First sprocket; 9. Scraper chain; 10. Motor; 11. Rotating shaft; 12. Second sprocket; 13. Fixed frame; 14. Scraper; 15. Discharge frame; 16. Baffle; 17. Handle; 18. L-shaped block; 19. Stabilizing plate; 20. Anti-corrosion layer. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The embodiments disclosed in this application are as follows: Figure 1-5 The scraper conveyor shown includes a scraper conveyor body 1, a machine head 2 fixedly installed at one end of the scraper conveyor body 1, a machine tail 3 fixedly installed at the other end of the scraper conveyor body 1, and a tensioning mechanism installed on one side of the machine tail 3.

[0028] The tensioning mechanism includes multiple electric telescopic rods 4 fixedly installed on one side of the tail 3. A slider 5 is fixedly installed at the output end of the electric telescopic rod 4. Multiple grooves 6 are opened on the inner wall of the scraper body 1. The slider 5 is slidably connected to the grooves 6. A rotating rod 7 is rotatably installed on one side of the slider 5. Multiple first sprockets 8 are fixedly installed on the surface of the rotating rod 7. A scraper chain 9 is meshed on the surface of the first sprockets 8.

[0029] A motor 10 is fixedly installed on one side of the scraper conveyor body 1. A rotating shaft 11 is fixedly installed at the output end of the motor 10. Multiple second sprockets 12 are fixedly installed on the outside of the rotating shaft 11. The second sprockets 12 mesh with the scraper chain 9.

[0030] The adjustment can be made by controlling the electric telescopic rod 4. The output end of the electric telescopic rod 4 is fixedly connected to the slider 5. When the electric telescopic rod 4 extends, it will push the slider 5 to slide in the groove 6 opened on the inner wall of the scraper body 1.

[0031] The sliding of slider 5 will drive the rotating rod 7 and the first sprocket 8 on the rotating rod 7 to move, thereby tightening the scraper chain 9 and increasing its tension. Conversely, when the electric telescopic rod 4 retracts, the tension of the scraper chain 9 will decrease. Moreover, the L-shaped block 18 and the stabilizing plate 19 fixed on one side of slider 5 can enhance the stability of slider 5 when sliding. The stable sliding of slider 5 ensures the precise adjustment of the position of rotating rod 7 and first sprocket 8, so that the movement trajectory of scraper chain 9 will not deviate significantly. In this way, scraper 14 can push material along the predetermined path under the drive of scraper chain 9, avoiding the situation of poor material conveying due to changes in the scraper movement trajectory.

[0032] Reference Figure 2-3 As shown, an auxiliary mechanism is provided on one side of the scraper chain 9. The auxiliary mechanism includes multiple fixed frames 13 fixedly installed on one side of the scraper chain 9. Scrapers 14 are inserted into the fixed frames 13, and the scrapers 14 are connected to the fixed frames 13 by bolts.

[0033] A discharge frame 15 is provided through one side of the tail section 3, and the bottom of the discharge frame 15 is inclined.

[0034] An auxiliary mechanism is provided on one side of the scraper chain 9. The fixed frame 13 is fixed on the scraper chain 9, and the scraper 14 is installed inside the fixed frame 13 by bolts. During the operation of the scraper chain 9, the scraper 14 moves together with the scraper chain 9, which can help push the material and make the material more smoothly conveyed in the scraper machine body. If the scraper 14 is damaged or worn, it can be easily replaced by removing the bolts.

[0035] Reference Figure 4-5 As shown, a baffle 16 is inserted into the inside of the discharge frame 15, a handle 17 is fixedly installed on the top of the baffle 16, an L-shaped block 18 is fixedly installed on one side of the slider 5, a stabilizing plate 19 is fixedly installed at one end of the L-shaped block 18, and an anti-corrosion layer 20 is fixedly installed on the inner wall of the scraper body 1. The anti-corrosion layer 20 is made of epoxy resin coating.

[0036] When the material is conveyed to the tail 3 position by the scraper chain 9, it will be discharged through the discharge frame 15 that is provided through one side of the tail 3. The bottom of the discharge frame 15 is set in an inclined shape, which is conducive to the smooth flow of material. Moreover, a baffle 16 is inserted inside the discharge frame 15. The operator can control the position of the baffle 16 by holding the handle 17 on the top of the baffle 16, thereby adjusting the discharge speed and flow rate.

[0037] The inner wall of the scraper conveyor body 1 is fixedly provided with an anti-corrosion layer 20 made of epoxy resin coating. This anti-corrosion layer 20 can prevent chemical substances in the material from corroding the inner wall of the scraper conveyor body 1 and extend the service life of the equipment.

[0038] Working principle of this utility model:

[0039] This utility model is a scraper machine with adjustable scraper chain tension. When the device is in use, the operator turns on the motor 10, the motor 10 starts to run and drives the rotating shaft 11 at its output end to rotate. Since multiple second sprockets 12 are fixedly installed on the outside of the rotating shaft 11, the rotation of the rotating shaft 11 will drive the second sprockets 12 to rotate synchronously.

[0040] The second sprocket 12 meshes with the scraper chain 9. When the second sprocket 12 rotates, it drives the scraper chain 9 to start cyclical motion and drives the first sprocket 8 and the rotating rod 7 to rotate on one side of the slider 5 to ensure stability. The movement of the scraper chain 9 drives the fixed frame 13 fixed on one side and the scraper 14 installed in the fixed frame 13 to move together. During the movement, the scraper 14 pushes the material forward in the scraper machine body 1.

[0041] If the tension of the scraper chain 9 is found to be insufficient during the operation of the scraper machine, it can be adjusted by controlling the electric telescopic rod 4. The output end of the electric telescopic rod 4 is fixedly connected to the slider 5. When the electric telescopic rod 4 extends, it will push the slider 5 to slide in the groove 6 opened on the inner wall of the scraper machine body 1.

[0042] The sliding of slider 5 will drive the rotating rod 7 and the first sprocket 8 on the rotating rod 7 to move, thereby tightening the scraper chain 9 and increasing its tension. Conversely, when the electric telescopic rod 4 retracts, the tension of the scraper chain 9 will decrease. Moreover, the L-shaped block 18 and the stabilizing plate 19 fixed on one side of slider 5 can enhance the stability of slider 5 when sliding. The stable sliding of slider 5 ensures the precise adjustment of the position of rotating rod 7 and first sprocket 8, so that the movement trajectory of scraper chain 9 will not deviate significantly. In this way, scraper 14 can push material along the predetermined path under the drive of scraper chain 9, avoiding the situation of poor material conveying due to changes in the scraper movement trajectory.

[0043] An auxiliary mechanism is provided on one side of the scraper chain 9. The fixed frame 13 is fixed on the scraper chain 9, and the scraper 14 is installed inside the fixed frame 13 by bolts. During the operation of the scraper chain 9, the scraper 14 moves together with the scraper chain 9, which can help push the material and make the material more smoothly conveyed in the scraper machine body. If the scraper 14 is damaged or worn, it can be easily replaced by removing the bolts.

[0044] When the material is conveyed to the tail 3 position by the scraper chain 9, it will be discharged through the discharge frame 15 that is provided through one side of the tail 3. The bottom of the discharge frame 15 is set in an inclined shape, which is conducive to the smooth flow of material. Moreover, a baffle 16 is inserted inside the discharge frame 15. The operator can control the position of the baffle 16 by holding the handle 17 on the top of the baffle 16, thereby adjusting the discharge speed and flow rate.

[0045] The inner wall of the scraper conveyor body 1 is fixedly provided with an anti-corrosion layer 20 made of epoxy resin coating. This anti-corrosion layer 20 can prevent chemical substances in the material from corroding the inner wall of the scraper conveyor body 1 and extend the service life of the equipment.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A flight bar machine with adjustable tension of flight bar chain, comprising a flight bar machine body (1), characterized in that: One end of the scraper machine body (1) is fixedly provided with a machine head (2), the other end of the scraper machine body (1) is fixedly provided with a machine tail (3), one side of the machine tail (3) is provided with a tensioning mechanism; The tensioning mechanism comprises a plurality of electric telescopic rods (4) fixedly arranged on one side of the machine tail (3), the output end of the electric telescopic rod (4) is fixedly provided with a sliding block (5), the inner wall of the scraper machine body (1) is provided with a plurality of sliding grooves (6), the sliding block (5) and the sliding groove (6) are slidably connected, one side of the sliding block (5) is rotatably provided with a rotating rod (7), the surface of the rotating rod (7) is fixedly provided with a plurality of first chain wheels (8), the surface of the first chain wheel (8) is engaged with a scraper chain (9).

2. An adjustable flighted chain tensioning flighting machine as claimed in claim 1, wherein: One side of the scraper machine body (1) is fixedly provided with a motor (10), the output end of the motor (10) is fixedly provided with a rotating shaft (11), the outer portion of the rotating shaft (11) is fixedly provided with a plurality of second chain wheels (12), the second chain wheel (12) is engaged with the scraper chain (9).

3. The flighted conveyor with adjustable flighted chain tension according to claim 1, wherein: One side of the scraper chain (9) is provided with an auxiliary mechanism, the auxiliary mechanism comprises a plurality of fixed frames (13) fixedly arranged on one side of the scraper chain (9), the inner portion of the fixed frame (13) is inserted with a scraper (14), the scraper (14) and the fixed frame (13) are connected by bolts.

4. The flighted conveyor of adjustable flighted chain tension according to claim 1, wherein: One side of the machine tail (3) is provided with a discharging frame (15), the bottom of the discharging frame (15) is provided in an inclined manner.

5. An adjustable flighted chain tensioning flighting machine as claimed in claim 4, wherein: The inner portion of the discharging frame (15) is inserted with a baffle (16), the top of the baffle (16) is fixedly provided with a handle (17).

6. The flighted conveyor of adjustable flighted chain tension according to claim 1, wherein: One side of the sliding block (5) is fixedly provided with an L-shaped block (18), one end of the L-shaped block (18) is fixedly provided with a stabilizing plate (19), the inner wall of the scraper machine body (1) is fixedly provided with an anticorrosive layer (20), the anticorrosive layer (20) is an epoxy resin coating.

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