Roller screen device with self-cleaning function

Abstract

The invention relates to the technical field of roller screen application, and particularly discloses a roller screen device with a self-cleaning function, which comprises a roller screen body, and further comprises a cleaning mechanism for cleaning the roller screen body, and the cleaning mechanism comprises a fixed seat fixedly connected to the side wall of the roller screen body, a first motor is fixedly installed on the surface of the fixing base, the output end of the first motor is fixedly connected with a threaded rod, the arc surface of the threaded rod is in threaded connection with a sliding frame, and a rectangular hole is formed in the end face of the sliding frame. Through the arrangement of the threaded rod, the sliding frame, the water pipe and the spray head, the sliding frame can be driven to move by means of threaded driving during rotation of the threaded rod, water flow can be sprayed out through the water pipe and the spray head, the interior of the roller screen body is flushed, and the roller screen body is flushed comprehensively through movement of the sliding frame; through rotation of the water pipe, the water flow spraying angle of the nozzle can be adjusted.

Description

Technical Field

[0001] The invention belongs to the technical field of roller screen application, and in particular relates to a roller screen device with a self-cleaning function. Background Art

[0002] Roller screen is a device in the coal conveying system of thermal power plants. It can improve the working efficiency of coal crushers and reduce the power consumption and metal wear of coal crushers. Roller screen has wide adaptability to coal, especially high moisture content coal, and is not easy to be blocked. Roller screen uses a single motor and a single shaft to drive the material forward along the screen surface and loosen the material at the same time. Particles smaller than the gap of the screen holes fall through the gap between the screen shafts due to their own weight and the rotation force of the screen shaft, while particles larger than the gap of the screen holes remain on the screen surface and continue to move forward and fall into the coal crusher to achieve the purpose of screening.

[0003] During use, due to the influence of rain and snow, the viscosity of coal increases. After the coal flows through the roller screen, the screen shaft will continue to stick to the coal layer by layer. The sticky coal is very dense and difficult to clean, which affects the passage of materials and causes the screening capacity of the roller screen to decrease. The existing cleaning method is usually for staff to flush with a handheld water gun, but manual cleaning is slow due to the dense structure of the roller screen. Summary of the invention

[0004] The object of the present invention is to provide a roller screen device with a self-cleaning function to solve the problem that the existing roller screen in the prior art is troublesome to clean.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A roller screen device with a self-cleaning function comprises a roller screen body and further comprises:

[0007] A cleaning mechanism is used to clean the roller screen body, the cleaning mechanism includes a fixed seat fixedly connected to the side wall of the roller screen body, a first motor is fixedly installed on the surface of the fixed seat, a threaded rod is fixedly connected to the output end of the first motor, the arc surface of the threaded rod is threadedly connected to a sliding frame, a rectangular hole is opened on the end surface of the sliding frame, two vertical plates are fixedly connected to the end surface of the sliding frame, water pipes are rotatably connected to the surfaces of the two vertical plates, and a plurality of nozzles are connected to the arc surface of the water pipes.

[0008] Preferably, a limiting rod is fixedly connected to one side of the roller screen body away from the threaded rod, the cross-section of the limiting rod is L-shaped, and one end of the limiting rod away from the roller screen body slides through the sliding frame.

[0009] Preferably: a second motor is fixedly connected to the side wall of the sliding frame, a second gear is fixedly connected to the output end of the second motor, a connecting rod is fixedly connected to one end of the water pipe, a first gear is fixedly connected to the end of the connecting rod away from the water pipe, and a tooth surface of the first gear meshes with a tooth surface of the second gear.

[0010] Preferably, the arc surface of the water pipe is sleeved with a torsion spring, and two ends of the torsion spring are respectively fixedly connected to one of the vertical plates and the water pipe.

[0011] Preferably, a plurality of insertion holes are provided on the surface of the first gear, an L-shaped plate is fixedly connected to the side wall of the sliding frame, an insertion rod is slidably inserted on the surface of the L-shaped plate, and the size of the insertion rod matches the size of the insertion hole.

[0012] Preferably, two fixing blocks are fixedly connected to both sides of the sliding frame, and four fixing blocks are grouped in pairs, and surfaces of the fixing blocks in the same group are rotatably connected to a rotating rod, and the arc surface of the rotating rod is fixedly connected to a cloth belt.

[0013] Preferably: one end of the cloth belt is fixedly connected to a counterweight rod, a connecting block is fixedly connected to the surface of one of the fixed blocks, a clamping rod is slidably inserted into the end surface of the connecting block, a plurality of clamping holes are opened on the arc surface of the rotating rod, and the size of the clamping holes is adapted to the size of the clamping rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides a threaded rod, a sliding frame, a water pipe and a nozzle. The threaded drive when the threaded rod rotates can drive the sliding frame to move. Through the use of the water pipe and the nozzle, water can be sprayed to wash the inside of the roller screen body. Through the movement of the sliding frame, the roller screen body can be fully washed. Through the rotation of the water pipe, the angle of the water sprayed by the nozzle can be adjusted, thereby improving the washing effect to a certain extent.

[0016] 2. The present invention sets a first gear, a second gear and a torsion spring. With the help of the transmission of the first gear and the second gear, the angle of the water pipe can be adjusted. With the help of the elastic force of the torsion spring, the water pipe can be repeatedly rotated back and forth, so that the water flow sprayed from the nozzle can be more uniform, thereby improving the cleaning effect.

[0017] 3. The present invention provides a rotating rod, a cloth belt, a counterweight rod, a clamping rod and a clamping hole. With the help of the rotation of the rotating rod, the cloth belt can be released. With the use of the counterweight rod, the cloth belt can be prevented from shaking as much as possible. The engagement of the clamping rod and the clamping hole can stabilize the angle of the rotating rod. With the use of the cloth belt, the two sides of the sliding frame can be shielded to ensure that the splashing water does not splash out during cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Schematic diagram of some structures;

[0020] Figure 3 For the present invention Figure 2 Schematic diagram of some structures;

[0021] Figure 4 It is a partial structural schematic diagram of the auxiliary mechanism of the present invention;

[0022] Figure 5 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0023] Figure 6 For the present invention Figure 4 Schematic diagram of the structure at point B in the middle.

[0024] In the figure: 1. roller screen body; 2. cleaning mechanism; 201. fixed seat; 202. first motor; 203. threaded rod; 204. sliding frame; 205. rectangular hole; 206. vertical plate; 207. water pipe; 2071. connecting rod; 208. nozzle; 209. torsion spring; 210. limit rod; 211. first gear; 212. second motor; 213. second gear; 214. jack; 215. L-shaped plate; 216. plug rod; 217. fixed block; 218. rotating rod; 219. cloth belt; 220. counterweight rod; 221. connecting block; 222. clamping rod; 223. clamping hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Reference Figure 1-Figure 6 As shown, the present invention provides a roller screen device with a self-cleaning function, comprising a roller screen body 1, and further comprising:

[0027] A cleaning mechanism 2 is used for cleaning the roller screen body 1. The cleaning mechanism 2 includes a fixed seat 201 fixedly connected to the side wall of the roller screen body 1. A first motor 202 is fixedly installed on the surface of the fixed seat 201. A threaded rod 203 is fixedly connected to the output end of the first motor 202. The arc surface of the threaded rod 203 is threadedly connected to a sliding frame 204. A rectangular hole 205 is provided on the end surface of the sliding frame 204. Two vertical plates 206 are fixedly connected to the end surface of the two vertical plates 206. Water pipes 207 are rotatably connected to the surfaces of the two vertical plates 206. The arc surface of the water pipe 207 is connected to multiple nozzles 208.

[0028] In this embodiment, the water pipe 207 can be connected to an external water source, and the water flow is delivered by a water pump to be sprayed out through the nozzle 208, starting the first motor 202, and the first motor 202 drives the threaded rod 203 to rotate. With the help of the thread drive, the sliding frame 204 will move, so that the entire roller screen body 1 will be fully flushed.

[0029] In an optional embodiment: a limiting rod 210 is fixedly connected to one side of the roller screen body 1 away from the threaded rod 203 , the cross-section of the limiting rod 210 is L-shaped, and one end of the limiting rod 210 away from the roller screen body 1 slides through the sliding frame 204 .

[0030] It should be noted that when the sliding frame 204 moves, it will slide along the arc surface of the limiting rod 210. The limiting rod 210 plays a role in limiting the moving position of the sliding frame 204 to prevent the sliding frame 204 from being offset.

[0031] In an optional embodiment: the side wall of the sliding frame 204 is fixedly connected to the second motor 212, the output end of the second motor 212 is fixedly connected to the second gear 213, one end of the water pipe 207 is fixedly connected to the connecting rod 2071, the end of the connecting rod 2071 away from the water pipe 207 is fixedly connected to the first gear 211, and the tooth surface of the first gear 211 is meshed with the tooth surface of the second gear 213.

[0032] In an optional embodiment: the arc surface of the water pipe 207 is sleeved with a torsion spring 209 , and two ends of the torsion spring 209 are respectively fixedly connected to one of the vertical plates 206 and the water pipe 207 .

[0033] It should be noted that, when the second motor 212 is started, the second gear 213 is driven to rotate. The rotation of the second gear 213 will transmit the power to the first gear 211. Since the second gear 213 has a smaller number of teeth on its tooth surface, the rotation of the first gear 211 will drive the water pipe 207 to rotate, thereby adjusting the angle of the nozzle 208. At this time, the torsion spring 209 is in a torsion state. When the first gear 211 is not in contact with the second gear 213, the torsion spring 209 rebounds, driving the water pipe 207 to rotate, and so on, so that the water pipe 207 rotates back and forth, making the sprayed water flow more uniform.

[0034] In an optional embodiment: a plurality of insertion holes 214 are provided on the surface of the first gear 211 , an L-shaped plate 215 is fixedly connected to the side wall of the sliding frame 204 , an insertion rod 216 is slidably inserted on the surface of the L-shaped plate 215 , and the size of the insertion rod 216 matches the size of the insertion hole 214 .

[0035] It should be noted that if the water pipe 207 does not need to rotate repeatedly, the second motor 212 can be turned off, and the water pipe 207 can be directly rotated. After adjusting to a suitable angle, the insertion rod 216 can be inserted into the corresponding socket 214 to stabilize the angle of the water pipe 207.

[0036] In an optional embodiment: two fixed blocks 217 are fixedly connected to both sides of the sliding frame 204, and four fixed blocks 217 are grouped in pairs. The surfaces of the same group of fixed blocks 217 are rotatably connected to a rotating rod 218, and the arc surface of the rotating rod 218 is fixedly connected to a cloth belt 219.

[0037] In an optional embodiment: one end of the cloth belt 219 is fixedly connected to a counterweight rod 220, a connecting block 221 is fixedly connected to the surface of one of the fixed blocks 217, a clamping rod 222 is slidably inserted into the end surface of the connecting block 221, and a plurality of clamping holes 223 are provided on the arc surface of the rotating rod 218, and the size of the clamping holes 223 is adapted to the size of the clamping rod 222.

[0038] It should be noted that, by rotating the rotating rod 218, the cloth belt 219 can be released, and by using the counterweight rod 220, it can be ensured as much as possible that the cloth belt 219 is not easy to shake, and through the engagement of the clamping rod 222 and the clamping hole 223, the angle of the rotating rod 218 can be stabilized, so that by using the cloth belt 219, the two sides of the sliding frame 204 are covered to ensure that the splashing water is not easy to splash out during cleaning.

[0039] The working principle of the present invention is as follows: when in use, the staff connects the water pipe 207 to the water source, and the water pump delivers water to be sprayed through the nozzle 208, and the first motor 202 is started. The first motor 202 drives the threaded rod 203 to rotate, and the sliding frame 204 moves with the help of the threaded drive, so that the entire roller screen body 1 can be fully rinsed. During the cleaning process, the rotating rod 218 is rotated to release the cloth belt 219 to block the two sides of the sliding frame 204, so that the splashing water is not easy to splash out. The angle of the rotating rod 218 can be stabilized by inserting the clamping rod 222 into the corresponding clamping hole 223. At the same time, the second motor 212 can be started to drive the second gear 213 to rotate. The rotation of the second gear 213 will transmit the power to the first gear 211. Since the second gear 213 has a smaller number of teeth, the rotation of the first gear 211 will drive the water pipe 207 to rotate, thereby adjusting the angle of the nozzle 208. At this time, the torsion spring 209 is in a torsion state. When the first gear 211 and the second gear 213 are not in contact, the torsion spring 209 rebounds, driving the water pipe 207 to rotate, and so on. The water pipe 207 rotates back and forth, making the sprayed water flow more uniform and improving the cleaning effect. If the water pipe 207 does not need to rotate repeatedly, the second motor 212 can be turned off to directly rotate the water pipe 207. After adjusting to a suitable angle, the insertion rod 216 is inserted into the corresponding socket 214 to stabilize the angle of the water pipe 207.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller screen device with a self-cleaning function, comprising a roller screen body (1), characterized in that: Also includes: A cleaning mechanism (2) is used for cleaning a roller screen body (1), the cleaning mechanism (2) comprising a fixing seat (201) fixedly connected to the side wall of the roller screen body (1), a first motor (202) fixedly mounted on the surface of the fixing seat (201), a threaded rod (203) fixedly connected to the output end of the first motor (202), a sliding frame (204) threadedly connected to the circular arc surface of the threaded rod (203), a rectangular hole (205) formed on the end surface of the sliding frame (204), two vertical plates (206) fixedly connected to the end surface of the sliding frame (204), water pipes (207) rotatably connected to the surfaces of the two vertical plates (206), and a plurality of nozzles (208) connected to the circular arc surface of the water pipe (207).

2. The roller screen device with self-cleaning function according to claim 1, characterized in that: A limiting rod (210) is fixedly connected to one side of the roller screen body (1) away from the threaded rod (203); the cross-section of the limiting rod (210) is L-shaped; one end of the limiting rod (210) away from the roller screen body (1) slides through the sliding frame (204).

3. The roller screen device with self-cleaning function according to claim 1, characterized in that: A second motor (212) is fixedly connected to the side wall of the sliding frame (204); an output end of the second motor (212) is fixedly connected to a second gear (213); one end of the water pipe (207) is fixedly connected to a connecting rod (2071); an end of the connecting rod (2071) away from the water pipe (207) is fixedly connected to a first gear (211); a tooth surface of the first gear (211) meshes with a tooth surface of the second gear (213).

4. The roller screen device with self-cleaning function according to claim 1, characterized in that: The arc surface of the water pipe (207) is sleeved with a torsion spring (209), and the two ends of the torsion spring (209) are respectively fixedly connected to one of the vertical plates (206) and the water pipe (207).

5. The roller screen device with self-cleaning function according to claim 3, characterized in that: A plurality of insertion holes (214) are provided on the surface of the first gear (211); an L-shaped plate (215) is fixedly connected to the side wall of the sliding frame (204); an insertion rod (216) is slidably inserted on the surface of the L-shaped plate (215); and the size of the insertion rod (216) matches the size of the insertion hole (214).

6. The roller screen device with self-cleaning function according to claim 1, characterized in that: Two fixed blocks (217) are fixedly connected to both sides of the sliding frame (204), and four fixed blocks (217) are arranged in groups of two. The surfaces of the fixed blocks (217) in the same group are rotatably connected to a rotating rod (218), and the arc surface of the rotating rod (218) is fixedly connected to a cloth belt (219).

7. The roller screen device with self-cleaning function according to claim 6, characterized in that: One end of the cloth belt (219) is fixedly connected to a counterweight rod (220); a surface of one of the fixed blocks (217) is fixedly connected to a connecting block (221); a clamping rod (222) is slidably inserted into the end surface of the connecting block (221); a plurality of clamping holes (223) are provided on the arc surface of the rotating rod (218); and the size of the clamping holes (223) is adapted to the size of the clamping rod (222).

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