Mine mining conveying equipment with screening function

Abstract

The invention relates to the technical field of conveying equipment, in particular to mine mining conveying equipment with a screening function, which comprises a conveying frame rod, and symmetrical auxiliary rotating shafts are rotatably mounted on the inner side surface of the conveying frame rod; a double-layer conveying belt structure is arranged on the inner side of the conveying frame rod, the first conveying belt on the upper layer is matched with the first disturbance rods at equal intervals to convey ore, the second conveying belt on the U-shaped frame on the lower layer and the second disturbance rods work cooperatively, and screening can be completed in the ore conveying process. Compared with the mode that traditional conveying equipment needs to be used in cooperation with independent screening equipment, the mode that the screening equipment does not need to be additionally purchased is adopted, the equipment purchasing and installing cost is reduced, meanwhile, the transferring link of the ore between the conveying equipment and the screening equipment is omitted, and the ore processing period is shortened; and the first disturbance rod and the second disturbance rod can be independently disassembled and stopped for a long time, and the operation efficiency is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, and in particular to a conveying equipment for mining with a screening function. Background Technology

[0002] In mining operations, after the ore is mined, it needs to be transferred from the mining face to subsequent processing stages such as crushing and sorting by conveying equipment. The operating efficiency and functional integrity of the conveying equipment directly affect the overall production rhythm and processing cost of the mine.

[0003] Currently, most mainstream mining conveying equipment on the market suffers from limited functionality. The vast majority of equipment only has basic linear conveying capabilities, enabling simple transfer of ore from the mining site to subsequent processes, and cannot simultaneously complete ore screening and separation operations during the conveying process.

[0004] Furthermore, before screening, the mined ore is of varying sizes, so it needs to be crushed to make it more uniform in size, which will facilitate the subsequent screening process.

[0005] In addition, most conveying and screening devices on the market are structurally integrated screens. When blockages or damage occur during screening, they need to be disassembled or shut down for repair, which wastes a lot of time.

[0006] Therefore, a conveying device with screening function for mining is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a conveying device for mining with a screening function, including a conveying frame rod, wherein symmetrical auxiliary shafts are rotatably mounted on the inner side of the conveying frame rod. A first conveyor belt is rotatably mounted on the circumference of the two auxiliary rotating shafts in the transverse direction, and a first disturbance rod is installed at equal intervals on the two first conveyor belts; A U-shaped frame is slidably provided on the lower inner side of the conveying frame rod, and a second conveyor belt in a symmetrical state is rotatably provided on the inner side of the U-shaped frame; Two second disturbance rods are installed at equal intervals on both second conveyor belts; A waste bin is slidably installed on the inner right side of the conveying frame rod.

[0008] Preferably, a symmetrical convex sliding groove rod is fixedly installed on the upper right side of the conveying frame rod, and a sliding rod is slidably installed inside the convex sliding groove rod, with a U-shaped groove opened on one side of the lower end of the sliding rod.

[0009] Preferably, a first spring in a symmetrical configuration is fixedly installed on the inner edge of the U-shaped groove, and a convex limiting slider is fixedly installed on one end of the outer side of the first spring. The end of the convex limiting slider away from the slide rod extends to the outer side of the convex slide rod.

[0010] Preferably, a crushing box is fixedly installed on the upper end of the slide rod, a first motor is fixedly installed on one side edge of the crushing box, and symmetrical crushing shafts are rotatably installed inside the crushing box. One end of one of the crushing shafts is fixedly connected to the output shaft of the first motor, and gears are fixedly installed on the other ends of the two crushing shafts and on the outside of the crushing box, and the gears mesh with each other.

[0011] Preferably, each of the two conveying frame rods has a driver at the middle of its outer side, and each driver has a mounting slot fixedly installed on its outer side. A mounting rod is slidably installed from the inside to the outside of the mounting slot, and a symmetrical diagonal tie rod is fixedly installed at one end of the outer side of the mounting rod.

[0012] Preferably, the end of the tie rod away from the mounting rod is provided with a hollow rod, a support slide rod is slidably installed inside the hollow rod, a lead screw is threadedly installed from the lower end face to the upper end face of the support slide rod, a second spring is rotatably installed at the upper end of the support slide rod, the upper end of the second spring is fixedly installed inside the upper end of the hollow rod, and movable wheels are provided at both ends of the lower part of the support slide rod.

[0013] Preferably, a connecting groove is provided on the inner right side wall of each of the two conveying frame rods, and a connecting slider is slidably installed inside the connecting groove. The inner sides of the two connecting sliders are fixedly connected to the outer side wall of the waste bin.

[0014] Preferably, a first support rod in a symmetrical configuration is fixedly installed on the inner right side of the two conveying frame rods. A forward and reverse motor is fixedly installed on one end of the inner side of the first support rod. The output shafts of the forward and reverse motors are fixedly connected to the inner side of the adjacent auxiliary rotating shaft. A limit rod is rotatably installed on the inner left side wall of each conveying frame rod.

[0015] Preferably, a connecting groove is provided on the inner left sidewall of the conveying frame rod. A movable slider is slidably installed from the inner side to the outer side of the connecting groove. The inner side of the movable slider is fixedly connected to the outer sidewall of the U-shaped frame. A reciprocating screw is threadedly installed from one end to the other of one of the movable sliders. A servo motor is fixedly installed at one end of the reciprocating screw. A limit rod is slidably installed from one end to the other of the other movable slider. Both the limit rod and the reciprocating screw are installed inside the connecting groove.

[0016] Preferably, a symmetrical second support rod is fixedly installed at one inner end of the U-shaped frame, and a stepper motor is fixedly installed at one inner end of the second support rod. Symmetrical grooved shafts are rotatably installed on both inner ends of the U-shaped frame, wherein the two grooved shafts are fixedly connected to the output shafts at both ends of the stepper motor, and a second conveyor belt is rotatably installed on the circumferential surface of the grooved shafts.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a double-layer conveyor belt structure within the conveyor frame. The upper first conveyor belt, in conjunction with equally spaced first disturbance rods, transports ore, while the lower U-shaped frame's second conveyor belt works in conjunction with the second disturbance rods, enabling screening to be completed during ore transport. Compared to traditional conveying equipment that requires separate screening equipment, this invention eliminates the need for additional screening equipment, reducing equipment procurement and installation costs. It also eliminates the transfer of ore between the conveying and screening equipment, shortening the ore processing cycle. Furthermore, during use, the first and second disturbance rods can be disassembled separately, avoiding prolonged downtime and ensuring operational efficiency.

[0018] 2. In this invention, the convex sliding groove rod on the upper right side of the conveying frame rod slides in conjunction with the sliding rod. Combined with the first spring and convex limiting slider within the U-shaped groove, the height of the crushing box can be flexibly adjusted according to the ore conveying volume and particle size requirements, ensuring smooth connection between ore crushing and subsequent conveying and screening. Simultaneously, the driver on the outside of the conveying frame rod connects to the hollow rod via a mounting slot, mounting rod, and diagonal tie rod. The support sliding rod within the hollow rod, in conjunction with the lead screw, allows for adjustable support height. The second spring buffers vibrations during equipment operation, while the casters facilitate movement of the equipment in different mining areas. This structural design not only meets the height and position adjustment requirements of different mining operation scenarios but also reduces equipment wear caused by vibration through stable support and shock absorption design, extending equipment lifespan and improving operational stability.

[0019] 3. In this invention, the waste bin on the right side of the inner side of the equipment is slidably mounted on the conveyor frame rod via a connecting chute and a connecting slider. When the waste accumulates to a certain amount, the waste bin can be directly pulled out along the connecting chute for cleaning, eliminating the need to stop the machine, disassemble parts, or manually clean inside the equipment. This simplifies the waste cleaning process, reduces operational safety hazards, and ensures production continuity. In terms of drive, the first conveyor belt is driven by a forward and reverse motor via an auxiliary rotating shaft, allowing flexible control of the conveying direction and speed. The U-shaped frame moves left and right under the drive of a servo motor, cooperating with a moving slider and a reciprocating screw and limit rod in the connecting groove. Combined with the second conveyor belt driven by a stepper motor, the position of the U-shaped frame and the operating state of the second conveyor belt can be adjusted according to the ore screening requirements, precisely controlling the screening process, improving screening accuracy, and meeting the mine's needs for grading ores of different particle sizes. This solves the problems of inconvenient waste cleaning and insufficient screening accuracy in traditional equipment. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a structural diagram of the main body of the present invention; Figure 2 This is an external view of the pulverizing chamber of the present invention; Figure 3 This is an external view of the pulverizing chamber of the present invention; Figure 4 This is a schematic diagram of the convex sliding groove rod and the sliding rod of the present invention; Figure 5 This is a schematic diagram of the slide bar of the present invention; Figure 6 This is a schematic diagram of the conveyor frame rod of the present invention; Figure 7 This is a schematic diagram of the conveyor frame rod of the present invention; Figure 8 This is a schematic diagram of the tie rod and the hollow rod of the present invention; Figure 9 This is a schematic diagram of the conveyor frame rod and waste bin of the present invention; Figure 10 This is a schematic diagram of the first conveyor belt and the first disturbance rod of the present invention; Figure 11 This is a schematic diagram of the first disturbance rod of the present invention; Figure 12 This is a schematic diagram of the U-shaped frame and the first conveyor belt of the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Conveying frame rod; 101. Convex sliding groove rod; 102. Sliding rod; 103. U-shaped groove; 104. First spring; 105. Convex limiting slider; 2. Crushing box; 201. First motor; 202. Crushing shaft; 203. Gear; 3. Driver; 301. Mounting slot; 302. Mounting rod; 303. Diagonal tie rod; 304. Hollow rod; 305. Support slide rod; 306. Lead screw; 307. Second spring; 308. Moving wheel; 4. Connecting chute; 401. Waste bin; 402. Connecting slider; 5. First support rod; 501. Forward and reverse motor; 502. Auxiliary rotating shaft; 503. First conveyor belt; 504. First disturbance rod; 6. Connecting groove; 601. Moving slider; 602. U-shaped frame; 7. Servo motor; 701. Reciprocating screw; 702. Limiting rod; 703. Second support rod; 704. Stepper motor; 705. Groove shaft; 706. Second conveyor belt; 707. Second disturbance rod; 8. Limiting rotating rod. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1 to 12 The present invention provides a technical solution: A conveying device for mining with a screening function includes two conveying frame rods 1. Symmetrical convex chute rods 101 are fixedly installed on the upper right side of each of the two conveying frame rods 1. Figure 1 As shown, the convex groove rod 101 has a hollow internal structure, and one side is continuous to the inside, as shown. Figure 4 As shown, a slide rod 102 is slidably installed inside the convex slide rod 101, and a U-shaped slide groove 103 is formed on one side of the lower end of the slide rod 102. A first spring 104 in a symmetrical state is fixedly installed inside the U-shaped slide groove 103, and a convex limiting slider 105 is fixedly installed at the other end of the first spring 104. Figure 5 As shown.

[0025] During use, when it is necessary to limit the sliding of the slide rod 102 within the convex sliding groove rod 101, the user manually presses the convex limiting slider 105. The convex limiting slider 105 is forced to compress the first spring 104, causing the first spring 104 to contract. The convex limiting slider 105 then enters the U-shaped sliding groove 103. At this time, the user can push the slide rod 102 to slide within the convex sliding groove rod 101. When the slide rod 102 slides to the appropriate position, the user releases the convex limiting slider 105. At this time, the first spring 104 is no longer under force and will return to its original state, causing the convex limiting slider 105 to pop out of the U-shaped groove 103, so that the outer side of the convex limiting slider 105 can fit tightly with the inner wall of the convex groove rod 101, thereby limiting the slide rod 102 and preventing the slide rod 102 from sliding in the convex groove rod 101. This can limit the components installed on the slide rod 102, prevent displacement, and increase the stability of the overall device during use.

[0026] A vertical rod is rotatably mounted inside the top of the slide bar 102, and a crushing box 2 is fixedly mounted on the top of the four vertical rods, such as... Figure 3 As shown.

[0027] It should be noted that the top rotatable connection of the upright and the slide rod 102 adopts a strong damping structure. The strong damping structure is a damping collar set at the top rotatable connection of the upright and the slide rod 102. The inner wall of the damping collar is tightly fitted with the outer wall of the upright, and the damping collar is made of high damping material to increase the resistance during rotation and achieve a strong damping effect.

[0028] Then, during use, the height of the crushing box 2 can be adjusted according to the needs. Then, the angle of the conveying frame rod 1 needs to be adjusted so that the raw materials at the bottom can be conveyed to the higher position. At this time, the angle of the crushing box 2 needs to be adjusted. Therefore, during use, the angle of the crushing box 2 can be adjusted by adjusting the two slide rods 102 on the left and the two slide rods 102 on the right to meet the production needs. In addition, the damping device can prevent the crushing box 2 from rotating on its own.

[0029] A first motor 201 is fixedly installed on one side edge of the crushing chamber 2. Two crushing shafts 202 are rotatably mounted inside the crushing chamber 2. One end of one crushing shaft 202 is fixedly connected to the output shaft of the first motor 201. Gears 203 are fixedly installed on the other ends of both crushing shafts 202, located on the outside of the crushing chamber 2. The two gears 203 mesh with each other, such as... Figure 4 As shown.

[0030] During use, the first motor 201 starts and drives the crushing shaft 202 fixedly connected to it to rotate. Since gears 203 are fixedly installed at the other end of both crushing shafts 202 and the two gears 203 mesh with each other, when one crushing shaft 202 rotates, it can drive the other crushing shaft 202 to rotate synchronously. The rotation of the two crushing shafts 202 can crush the ore raw materials inside the crushing box 2.

[0031] Then, a driver 3 is fixedly installed inside the recessed structure in the middle of the outer side of the two conveying frame rods 1. The driver 3 can adjust the state of the conveying frame rods 1 so that they are horizontal or tilted.

[0032] Next, a mounting slot 301 is fixedly installed on the outside of the driver 3. A mounting rod 302 is slidably installed from the inside to the outside of the mounting slot 301. Symmetrical diagonal tie rods 303 are fixedly installed on both sides of one end of the mounting rod 302. A cavity rod 304 is fixedly installed at the end of the diagonal tie rod 303 away from the mounting rod 302. Figure 8 As shown.

[0033] Secondly, a support slide rod 305 is slidably installed from the inside to the outside of the cavity rod 304. A lead screw 306 is threadedly installed from the lower end to the upper end of the support slide rod 305. Then, a second spring 307 is rotatably installed on the top of the support slide rod 305. It should be noted that a ring is fixedly installed on the lower end of the second spring 307. The ring is rotatably connected to the support slide rod 305, but not to the lead screw 306. Therefore, the rotation of the lead screw 306 will not affect the second spring 307. The top of the second spring 307 is fixedly installed on the upper end of the cavity rod 304.

[0034] On both sides of the lower part of the support slide rod 305, movable wheels 308 are rotatably mounted, such as... Figure 8 As shown.

[0035] Therefore, during use, the conveying frame rod 1 can be flexibly adjusted to a horizontal or inclined state according to actual needs by adjusting the driver 3, in order to adapt to different ore conveying requirements. When the driver 3 is started, the mounting rod 302 also slides, and the support slide rod 305 slides in the cavity rod 304. The thread rotation of the lead screw 306 makes the height of the support slide rod 305 adjustable, further enhancing the adaptability and stability of the equipment. The setting of the second spring 307 ensures the buffering effect of the support slide rod 305 during movement, reducing the vibration caused by ore impact and extending the service life of the equipment. The setting of the moving wheel 308 makes the entire conveying frame smoother when adjusting the angle, reducing frictional resistance and improving conveying efficiency.

[0036] Both conveyor frame rods 1 have connecting grooves 4 on their inner right sidewalls. Connecting sliders 402 are slidably installed inside each connecting groove 4. Waste bins 401 are fixedly installed on the inner sides of both connecting sliders 402. Figure 9 As shown.

[0037] During use, the waste bin 401 can slide within the connecting chute 4 via the connecting slider 402, thus facilitating the adjustment of its position. When ore is conveyed and screened by the conveying frame rod 1, substandard ore falls into the waste bin 401, achieving the ore screening function. Simultaneously, the waste bin 401 allows users to easily clean up the screened waste, improving the equipment's practicality and convenience. The coordinated design of the connecting chute 4 and the connecting slider 402 ensures the stability and reliability of the waste bin 401 during movement, preventing ore spillage due to shaking.

[0038] A first support rod 5 is fixedly installed on the inner front end side wall of each of the two conveying frame rods 1. A forward and reverse motor 501 is fixedly installed on one end of the inner side of each first support rod 5. Then, auxiliary shafts 502 are rotatably installed on the inner sides of the two conveying frame rods 1, near the edges. The inner sides of the two front auxiliary shafts 502 are fixedly connected to the output shafts of the forward and reverse motors 501. A first conveyor belt 503 is rotatably installed on the circumferential surface of each of the two auxiliary shafts 502. First disturbance rods 504 are fixedly installed on the two left and right first conveyor belts 503 at equal intervals using springs to secure vibrators. Figure 10 As shown.

[0039] During operation, the forward and reverse motors 501 drive the two auxiliary shafts 502 at the front to rotate, thereby causing the first conveyor belts 503 on the two auxiliary shafts 502 to operate synchronously. The first agitator 504 on the first conveyor belt 503 continuously agitates the ore as the conveyor belt moves, ensuring that the ore is evenly dispersed and agitated during transport, preventing ore accumulation and jamming. This design not only improves the ore transport efficiency but also ensures the uniformity and accuracy of ore screening. Simultaneously, the use of the first agitator 504 increases the agitation effect on the ore, making it easier to screen out substandard ore, thus improving the equipment's screening accuracy and efficiency.

[0040] Secondly, connecting grooves 6 are provided on the inner sidewalls of both conveying frame rods 1, and sliding sliders 601 slide inside each connecting groove 6. Then, a reciprocating screw 701 is rotatably installed inside one of the connecting grooves 6, and a limit rod 702 is fixedly installed inside the other connecting groove 6. A servo motor 7 is fixedly installed at one end of the reciprocating screw 701, and a U-shaped frame 602 is fixedly installed between the two sliding sliders 601. Figure 12 As shown.

[0041] Then, symmetrical second support rods 703 are fixedly installed on the inner side wall of the U-shaped frame 602. A stepper motor 704 is fixedly installed on the adjacent ends of the second support rods 703. Next, grooved shafts 705 are symmetrically rotatably installed on the inner side walls of the U-shaped frame 602. One end of each grooved shaft 705 is fixedly connected to the adjacent output shafts of the stepper motors 704. A second conveyor belt 706 is rotatably installed on the circumferential surface of the two grooved shafts 705. Second disturbance rods 707 are fixedly installed at equal intervals on the front and rear second conveyor belts 706 using springs and vibrators. Figure 12 As shown.

[0042] Therefore, during use, when the servo motor 7 is started, the output shaft of the servo motor 7 will drive the reciprocating screw 701 to rotate. During the rotation of the reciprocating screw 701, it will push the movable slider 601 to slide back and forth inside the connecting groove 6. Since a U-shaped frame 602 is fixedly installed between the two movable sliders 601, the U-shaped frame 602 will move with the movable sliders 601. Furthermore, since the reciprocating screw 701 is rotatably installed inside one of the connecting grooves 6, and the limit rod 702 is fixedly installed inside the other connecting groove 6, the U-shaped frame 602 will be more stable during movement, avoiding the phenomenon of shaking.

[0043] Meanwhile, when the stepper motor 704 is started, the output shaft of the stepper motor 704 will drive the groove shaft 705 to rotate. During the rotation of the groove shaft 705, the second conveyor belt 706 will rotate. During the rotation of the second conveyor belt 706, the second disturbance rod 707 will move. During the movement of the second disturbance rod 707, the ore will be disturbed, thereby increasing the speed at which the ore falls and improving the screening efficiency.

[0044] A limiting rod 8 is rotatably installed on the inner side of one end of each of the two conveyor frame rods 1. The opening of one end of the limiting rod 8 is the same width as that of the second conveyor belt 706. Therefore, during use, the limiting rod 8 can restrict the ore after initial screening on the first conveyor belt 503, so that it can fall completely onto the second conveyor belt 706, preventing the ore from falling off the device.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A conveying device for mining with a screening function, characterized in that: Includes a conveying frame rod (1), on the inner side of which an auxiliary rotating shaft (502) in a symmetrical state is rotatably mounted. A first conveyor belt (503) is rotatably mounted on the circumferential surface of the two auxiliary rotating shafts (502) in the transverse direction, and a first disturbance rod (504) is installed at equal intervals on the two first conveyor belts (503). A U-shaped frame (602) is slidably provided on the lower inner side of the conveying frame rod (1), and a second conveyor belt (706) in a symmetrical state is rotatably provided on the inner side of the U-shaped frame (602). Two second disturbance rods (707) are installed at equal intervals on both second conveyor belts (706). A waste bin (401) is slidably provided on the inner right side of the conveying frame rod (1).

2. The mining conveying equipment with screening function according to claim 1, characterized in that: A symmetrical convex sliding groove rod (101) is fixedly installed on the upper right side of the conveying frame rod (1). A sliding rod (102) is slidably installed inside the convex sliding groove rod (101). A U-shaped groove (103) is opened on one side of the lower end of the sliding rod (102).

3. A mining conveying device with screening function according to claim 1, characterized in that: The inner edge of the U-shaped groove (103) is fixedly installed with a first spring (104) in a symmetrical state. A convex limiting slider (105) is fixedly installed on one side of the first spring (104). The end of the convex limiting slider (105) away from the slide bar (102) extends to the outside of the convex slide bar (101).

4. A mining conveying device with screening function according to claim 3, characterized in that: The upper end of the slide bar (102) is fixedly installed with a crushing box (2). A first motor (201) is fixedly installed on one side edge of the crushing box (2). A symmetrical crushing shaft (202) is rotatably installed inside the crushing box (2). One end of one of the crushing shafts (202) is fixedly connected to the output shaft of the first motor (201). Gears (203) are fixedly installed on the other end of both crushing shafts (202) and on the outside of the crushing box (2), and the gears (203) mesh with each other.

5. A mining conveying device with screening function according to claim 1, characterized in that: A driver (3) is provided on the outer middle of both of the two conveying frame rods (1). A mounting slot (301) is fixedly installed on the outer side of each driver (3). A mounting rod (302) is slidably installed from the inside to the outside of the mounting slot (301). A symmetrical diagonal tie rod (303) is fixedly installed at one end of the outer side of the mounting rod (302).

6. A mining conveying device with screening function according to claim 5, characterized in that: A hollow rod (304) is provided at the end of the diagonal tie rod (303) away from the mounting rod (302). A support slide rod (305) is slidably installed inside the hollow rod (304). A lead screw (306) is threadedly installed from the lower end face to the upper end face of the support slide rod (305). A second spring (307) is rotatably provided at the upper end of the support slide rod (305). The upper end of the second spring (307) is fixedly installed at the upper end of the hollow rod (304). Moving wheels (308) are provided at both ends of the lower part of the support slide rod (305).

7. A mining conveying device with screening function according to claim 1, characterized in that: A connecting groove (4) is provided on the inner right side wall of each of the two conveying frame rods (1). A connecting slider (402) is slidably installed inside the connecting groove (4). The inner sides of the two connecting sliders (402) are fixedly connected to the outer side wall of the waste bin (401).

8. A conveying device for mining with a screening function according to claim 1, characterized in that: Two conveying frame rods (1) are fixedly installed with symmetrical first support rods (5) on the inner right side. One end of the inner side of the first support rod (5) is fixedly installed with a forward and reverse motor (501). The output shafts of the two ends of the forward and reverse motor (501) are fixedly connected to the inner side of the adjacent auxiliary rotating shaft (502). Limiting rods (8) are rotatably installed on the inner left side wall of the conveying frame rod (1).

9. A mining conveying device with screening function according to claim 8, characterized in that: The inner left side wall of the conveying frame rod (1) has a connecting groove (6). A movable slider (601) is slidably installed from the inner side to the outer side of the connecting groove (6). The inner side of the movable slider (601) is fixedly connected to the outer side wall of the U-shaped frame (602). One of the movable sliders (601) is threadedly mounted with a reciprocating screw (701) from one end to the other end. A servo motor (7) is fixedly installed at one end of the reciprocating screw (701). A limit rod (702) is slidably installed from one end to the other end of the other movable slider (601). The limit rod (702) and the reciprocating screw (701) are both installed inside the connecting groove (6).

10. A mining conveying device with screening function according to claim 1, characterized in that: A second support rod (703) in a symmetrical state is fixedly installed at one end of the inner side of the U-shaped frame (602). A stepper motor (704) is fixedly installed at one end of the inner side of the second support rod (703). A grooved shaft (705) in a symmetrical state is rotatably installed on both sides of the inner side of the U-shaped frame (602). The two grooved shafts (705) are fixedly connected to the output shafts at both ends of the stepper motor (704). A second conveyor belt (706) is rotatably installed on the circumferential surface of the grooved shafts (705).

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