Flexible depth screening device with self-adapting tension adjustment

Abstract

This invention discloses a flexible depth screening device with adaptive tension adjustment function, belonging to the field of screening technology. The invention includes a feeding assembly and a vibrating screen. The feeding assembly and the vibrating screen are mounted on a support frame. The vibrating screen includes a pair of side baffles, an upper adjusting frame, a lower adjusting frame, and several sets of adjusting components. The upper and lower adjusting frames are slidably mounted on the outside of the pair of side baffles. Several adjusting components are mounted on the upper and lower adjusting frames and located between the pair of side baffles. A connecting screen is provided between every two adjacent sets of adjusting components. The feeding assembly includes a feed conveyor and a weighing sensor. A bidirectional hydraulic cylinder is installed between the upper and lower adjusting frames. Through the intermittent motion characteristic of the incomplete gear meshing with the accumulator wheel, the feed conveyor intermittently feeds material, achieving stable ore weighing, adjusting the flexibility of the connecting screen, and maintaining stable vibration intensity of the screen surface at all times.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of screening, in particular to a flexible deep screening device with self-adaptive tension adjusting function. BACKGROUND

[0002] Screening machinery is the basic equipment for ore production, especially in the field of mineral processing, and is the front-end operation of the process flow, and its processing effect affects the entire process. The flexible screen surface can improve the screening efficiency within a certain intensity vibration range, and the deformation of the flexible screen surface can avoid hole blocking. However, the vibration intensity of the flexible screen surface is easily affected by the material load. When the material load is large, the vibration intensity of the flexible screen surface decreases, resulting in a decrease in the screening efficiency. Research has found that under high material load, the greater the tension of the flexible screen surface, the greater the vibration intensity. When the tension is constant, the greater the material load, the lower the flexible vibration intensity. In order to maintain the stability of the screen surface vibration intensity and keep the screening effect in the best state, the current mine production is unstable due to various reasons, which makes the processing capacity and processing effect of the flexible screening equipment unstable, affecting the stability of the downstream process flow. SUMMARY

[0003] The purpose of the present application is to provide a flexible deep screening device with self-adaptive tension adjusting function to solve the problems raised in the background.

[0004] In order to solve the above technical problems, the present application provides the following technical scheme: a flexible deep screening device with self-adaptive tension adjusting function includes a feeding assembly and a vibrating screen, the feeding assembly and the vibrating screen are installed on a device support, the vibrating screen is inclined, the feeding assembly is located above the feeding end of the vibrating screen, the vibrating screen includes a pair of side baffles, an upper adjusting frame, a lower adjusting frame and a plurality of adjusting assemblies, the upper adjusting frame and the lower adjusting frame are slidingly installed on the outside of the pair of side baffles, the plurality of adjusting assemblies are installed on the upper adjusting frame and the lower adjusting frame, and the plurality of adjusting assemblies are located between the pair of side baffles. A connecting screen is arranged between every two adjacent adjusting assemblies. The feeding assembly includes a feeding conveyor and a weighing sensor. A bidirectional hydraulic cylinder is installed between the upper adjusting frame and the lower adjusting frame. The bidirectional hydraulic cylinder is connected with a hydraulic system. The weighing sensor is connected with a control system circuit.

[0005] Further, the device support is provided with a support rod, a crankshaft and a servo motor. One side of the pair of side baffles near the feeding end is provided with an axle hole and a rod groove. The axle hole is matched with the crankshaft. The rod groove is slidingly connected with the support rod. The motor shaft of the servo motor is connected with one end of the crankshaft. When the servo motor is powered on and operates, the servo motor drives the crankshaft to rotate, the crankshaft drives the vibrating screen to vibrate up and down, and simultaneously drives the vibrating screen to screen back and forth, thereby screening the material on the vibrating screen.

[0006] Further, each of the adjusting assemblies comprises an upper layer of the supporting plate, a transition supporting plate and a lower layer of the supporting plate, the bottom of the upper layer of the supporting plate is provided with a plurality of studs, the transition supporting plate is provided with a plurality of through grooves, and the bottom of the transition supporting plate is also provided with a plurality of studs, the lower layer of the supporting plate is provided with a plurality of through grooves, the plurality of studs of the upper layer of the supporting plate are inserted into the plurality of through grooves of the transition supporting plate, the plurality of studs of the transition supporting plate are inserted into the plurality of through grooves of the lower layer of the supporting plate, a bolt is connected to each of the studs, the bolt is screwed on the stud without being screwed tightly, and only plays a blocking role to prevent the separation of the upper layer of the supporting plate, the transition supporting plate and the lower layer of the supporting plate, so that the upper layer of the supporting plate, the transition supporting plate and the lower layer of the supporting plate maintain a good sliding relationship with each other.

[0007] Further, one end of each of the pair of side plates outwardly is provided with a sliding groove, the upper adjusting frame and the lower adjusting frame are slidingly arranged in the sliding groove, the upper adjusting frame is below the lower adjusting frame, the lower layer of the supporting plate is connected with an upper cross beam through a reinforcing rib, the bottom of the lower layer of the supporting plate is connected with a lower cross beam through a reinforcing rib, each of the pair of side plates is provided with a through groove corresponding to each of the adjusting assemblies, the upper cross beam penetrates through the through groove and is connected with the upper adjusting frame, the lower cross beam penetrates through the through groove and is connected with the lower adjusting frame, the hydraulic system controls the upper adjusting frame and the lower adjusting frame to slide in opposite directions in the sliding groove through the bidirectional hydraulic cylinder, the upper adjusting frame slides and drives the upper layer of the supporting plate to move through the upper cross beam, and the lower adjusting frame slides and drives the lower layer of the supporting plate to move through the lower cross beam.

[0008] Further, one side of each of the pair of side plates close to the feeding end is provided with a feeding screen, the feeding screen is connected with the upper layer of the supporting plate in the adjusting assembly close to the feeding end, and the connecting screen is connected between the lower layer of the supporting plate and the adjacent upper layer of the supporting plate, when the upper cross beam and the lower cross beam move in a relatively close direction, it indicates that the distance between two adjacent adjusting assemblies increases, the distance between the lower layer of the supporting plate and the adjacent upper layer of the supporting plate increases, and therefore the connecting screen is tensioned, when the upper cross beam and the lower cross beam move in a relatively far direction, it indicates that the distance between two adjacent adjusting assemblies decreases, the distance between the lower layer of the supporting plate and the adjacent upper layer of the supporting plate decreases, and therefore the connecting screen is relaxed.

[0009] Further, the weighing sensor is located inside the feeding conveyor, a material separating plate is arranged on the conveying belt of the feeding conveyor, one side of a rotating roller of the feeding conveyor is coaxially connected with a one-way ratchet shaft, a force storage wheel is installed on the one-way ratchet shaft, and an elastic pawl is installed at the position where the force storage wheel contacts the one-way ratchet shaft, the ores needing screening are first delivered to the feeding conveyor by other conveying devices, the material separating plate separates the ores, and the weighing sensor weighs the ores between every two material separating plates in turn, the vibrating screen is operated along with the rotating of the crankshaft, the driven friction wheel is driven to rotate, the incomplete gear is driven to rotate by the driven friction wheel, the force storage wheel is driven to rotate by the incomplete gear, when the incomplete gear drives the force storage wheel to rotate, the elastic pawl in the force storage wheel overcomes the one-way ratchet shaft and cannot drive the one-way ratchet shaft to rotate, and the rotating roller of the feeding conveyor cannot rotate.

[0010] Further, the force storage wheel is provided with a gear slot and a winding groove, a rope is wound in the winding groove, and a weight is connected to one end of the rope, when the force storage wheel is driven to rotate by the incomplete gear, the rope lifts the weight, until the side of the incomplete gear without teeth rotates to one side of the force storage wheel, the weight pulls the force storage wheel to reverse by the rope, at this time, the elastic pawl is firmly engaged with the one-way ratchet shaft, drives the one-way ratchet shaft to rotate, and then drives the rotating roller of the feeding conveyor to rotate, after the rope is completely released, the feeding conveyor pours the ores between two material separating plates into the vibrating screen for screening, then the feeding conveyor stops pouring, the weighing sensor weighs the ores between every two material separating plates again in a stable and stationary state, obtains the weight of the ores between the current two material separating plates, and before the next pouring of the force storage wheel, the control system adjusts the tension degree of the connected screen mesh by driving the bidirectional hydraulic cylinder through the hydraulic system according to the weight of the ores, when the load of the ores increases, the tension degree of the connected screen mesh is greater, and the vibration intensity is greater, when the load of the ores decreases, the vibration intensity of the connected screen mesh is lower.

[0011] Further, the incomplete gear is rotatably installed on one side of the feeding conveyor close to the force storage wheel, a driven friction wheel is coaxially arranged on one side of the incomplete gear, the driven friction wheel contacts the crankshaft, a material with a high friction coefficient is wrapped at the contact position of the crankshaft and the driven friction wheel, the incomplete gear is engaged with the gear slot on the force storage wheel for transmission, and the intermittent movement characteristics of the engagement between the incomplete gear and the force storage wheel enable the feeding conveyor to intermittently pour, obtain stable ore weighing, screen the ores in batches, obtain the load condition of the ores at any time, adjust the flexibility of the connected screen mesh, keep the vibration intensity of the screen surface stable at any time, and keep the screening effect in the best state.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] The intermittent movement characteristics of the incomplete gear and the force storage wheel make the feeding conveyor intermittent feeding, and the stable ore weighing is obtained. The ore is screened in batches, and the load condition of the ore material is obtained according to the weight at any time. If the ore material load increases, the upper cross beam and the lower cross beam move in the direction of relatively close, the connecting screen is tensioned, when the material load becomes smaller, the upper cross beam and the lower cross beam move in the direction of relatively far away, the connecting screen becomes loose, the flexibility of the connecting screen is adjusted, the stability of the vibration intensity of the screen surface is kept at any time, and the screening effect is kept in the best state. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are included to provide a further understanding of the application, and are made a part of the description. In the drawings:

[0015] Figure 1 is the overall appearance structure schematic of the application Figure One ;

[0016] Figure 2 is the overall appearance structure schematic of the application Figure Two ;

[0017] Figure 3 is the exploded structure schematic of the vibrating screen part of the application;

[0018] Figure 4 is the structure schematic of the vibrating screen part of the application;

[0019] Figure 5 is the structure schematic of the three-layer supporting plate of the application;

[0020] Figure 6 is the structure schematic of the feeding assembly of the application;

[0021] Figure 7 is the local enlarged view of the A area in the application Figure 6 ;

[0022] In the drawing: 1, side baffle; 2, supporting rod; 3, crankshaft; 4, sliding groove; 501, upper adjusting frame; 502, lower adjusting frame; 601, feeding screen; 602, connecting screen; 7, upper supporting plate; 8, transition supporting plate; 9, lower supporting plate; 10, upper cross beam; 11, lower cross beam; 121, stud; 122, bolt; 13, servo motor; 14, feeding conveyor; 15, material separating plate; 16, one-way ratchet shaft; 17, force storage wheel; 18, incomplete gear; 19, driven friction wheel; 20, rope; 21, weight; 22, two-way hydraulic cylinder. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. 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 work fall within the scope of the present application.

[0024] Please refer to Figures 1-7 The present application provides a technical solution: a flexible deep screening device with self-adaptive tension adjustment function, which comprises a feeding assembly and a vibrating screen. The feeding assembly and the vibrating screen are installed on a device support. The vibrating screen is arranged obliquely. The feeding assembly is located above the feeding end of the vibrating screen. The vibrating screen comprises a pair of side baffles 1, an upper adjusting frame 501, a lower adjusting frame 502, and a plurality of groups of adjusting assemblies. The upper adjusting frame 501 and the lower adjusting frame 502 are slidingly installed on the outer sides of the pair of side baffles 1. The plurality of adjusting assemblies are installed on the upper adjusting frame 501 and the lower adjusting frame 502. The plurality of adjusting assemblies are located between the pair of side baffles 1. A connecting screen 602 is arranged between every two adjacent groups of adjusting assemblies. The feeding assembly comprises a feeding conveyor 14 and a weighing sensor. A bidirectional hydraulic cylinder 22 is installed between the upper adjusting frame 501 and the lower adjusting frame 502. The bidirectional hydraulic cylinder 22 is connected with a hydraulic system. The weighing sensor is connected with a control system circuit. A support rod 2, a crankshaft 3, and a servo motor 13 are arranged on the device support. An axle hole is formed on the side of the pair of side baffles 1 close to the feeding end. A rod groove is formed on the side of the pair of side baffles 1 close to the feeding end. The axle hole is matched with the crankshaft 3. The rod groove is slidingly connected with the support rod 2. The motor shaft of the servo motor 13 is connected with one end of the crankshaft 3. When the servo motor 13 is powered on and operates, the servo motor 13 drives the crankshaft 3 to rotate. The crankshaft 3 drives the vibrating screen to vibrate up and down, and drives the vibrating screen to screen back and forth. The material on the vibrating screen is screened.

[0025] Each adjusting assembly comprises an upper layer of supporting plates 7, a transition supporting plate 8 and a lower layer of supporting plates 9, the bottom of the upper layer of supporting plates 7 is provided with a plurality of studs 121, the transition supporting plate 8 is provided with a plurality of through slots, the bottom of the transition supporting plate 8 is also provided with a plurality of studs 121, the lower layer of supporting plates 9 is provided with a plurality of through slots, the plurality of studs 121 of the upper layer of supporting plates 7 are inserted into the plurality of through slots of the transition supporting plate 8, the plurality of studs 121 of the transition supporting plate 8 are inserted into the plurality of through slots of the lower layer of supporting plates 9, each stud 121 is connected with a bolt 122, one end of each side baffle 1 facing outward is provided with a sliding slot 4, an upper adjusting frame 501 and a lower adjusting frame 502 are slidingly arranged in the sliding slot 4, the upper adjusting frame 501 is located below the lower adjusting frame 502, the lower layer of supporting plates 9 is connected with an upper cross beam 10 through a reinforcing rib, the bottom of the lower layer of supporting plates 9 is connected with a lower cross beam 11 through a reinforcing rib, each side baffle 1 is provided with a through slot corresponding to each adjusting assembly, the upper cross beam 10 penetrates through the through slot and is connected with the upper adjusting frame 501, the lower cross beam 11 penetrates through the through slot and is connected with the lower adjusting frame 502, one side of each side baffle 1 close to the feeding end is provided with a feeding screen 601, the feeding screen 601 is connected with the upper layer of supporting plates 7 in the adjusting assembly close to the feeding end, a connecting screen 602 is connected between the lower layer of supporting plates 9 and the adjacent upper layer of supporting plates 7.

[0026] The bolt 122 is screwed on the stud 121 without being screwed tightly, only plays a blocking role, prevents the upper layer of supporting plates 7, the transition supporting plate 8 and the lower layer of supporting plates 9 from being separated, so that the upper layer of supporting plates 7, the transition supporting plate 8 and the lower layer of supporting plates 9 maintain a good sliding relationship with each other, the hydraulic system controls the upper adjusting frame 501 and the lower adjusting frame 502 to slide in opposite directions in the sliding slot 4 through the bidirectional hydraulic cylinder 22, the upper adjusting frame 501 slides and drives the upper layer of supporting plates 7 to move through the upper cross beam 10, the lower adjusting frame 502 slides and drives the lower layer of supporting plates 9 to move through the lower cross beam 11, when the upper cross beam 10 and the lower cross beam 11 move in a relatively close direction, it indicates that the distance between two adjacent adjusting assemblies increases, the distance between the lower layer of supporting plates 9 and the adjacent upper layer of supporting plates 7 increases, so the connecting screen 602 is tensioned; when the upper cross beam 10 and the lower cross beam 11 move in a relatively far direction, it indicates that the distance between two adjacent adjusting assemblies decreases, the distance between the lower layer of supporting plates 9 and the adjacent upper layer of supporting plates 7 decreases, so the connecting screen 602 becomes relaxed.

[0027] The weighing sensor is located inside the feeding conveyor 14, the feeding conveyor 14 is provided with a material baffle 15 on the conveying belt, one side of a rotating roller of the feeding conveyor 14 is coaxially connected with a one-way ratchet shaft 16, the one-way ratchet shaft 16 is provided with a force storage wheel 17, the force storage wheel 17 is provided with an elastic pawl (not shown in the figure) at the position in contact with the one-way ratchet shaft 16, the force storage wheel 17 is provided with a tooth groove and a winding groove, a rope 20 is wound in the winding groove, one end of the rope 20 is connected with a weight 21, the feeding conveyor 14 is provided with an incomplete gear 18 which is rotatably installed on the side close to the force storage wheel 17, the incomplete gear 18 is coaxially provided with a driven friction wheel 19 on one side, the driven friction wheel 19 is in contact with the crankshaft 3, the contact position between the crankshaft 3 and the driven friction wheel 19 is wrapped with a material with high friction coefficient, the incomplete gear 18 is in meshing transmission with the tooth groove on the force storage wheel 17, the ores which need to be sieved are firstly transmitted to the feeding conveyor 14 by other conveying devices, the material baffle 15 separates the ores, the weighing sensor weighs the ores between every two material baffles 15 in turn, along with the crankshaft 3 driving the vibrating screen to work, the driven friction wheel 19 is also driven to rotate, the driven friction wheel 19 drives the incomplete gear 18 to rotate, the incomplete gear 18 drives the force storage wheel 17 to rotate through the tooth groove, when the incomplete gear 18 drives the force storage wheel 17 to rotate, the elastic pawl in the force storage wheel 17 overcomes the one-way ratchet shaft 16, and the one-way ratchet shaft 16 cannot be driven to rotate, and the rotating roller of the feeding conveyor 14 cannot rotate.

[0028] When the force storage wheel 17 is driven to rotate by the incomplete gear 18, the rope 20 lifts the weight 21, until the side of the incomplete gear 18 without teeth rotates to the side of the force storage wheel 17, the weight 21 pulls the force storage wheel 17 to reverse through the rope 20, at this time, the elastic pawl is firmly engaged with the one-way ratchet shaft 16, drives the one-way ratchet shaft 16 to rotate, and then drives the rotating roller of the feeding conveyor 14 to rotate, after the rope 20 is completely released, the feeding conveyor 14 puts the ores between two material baffles 15 into the vibrating screen for sieving, then the feeding conveyor 14 stops feeding, the weighing sensor weighs the ores between every two material baffles 15 again in the stable and stationary state, obtains the weight of the ores between the current two material baffles 15, before the next feeding of the force storage wheel 17, the control system adjusts the tension degree of the connected screen 602 by driving the bidirectional hydraulic cylinder 22 through the hydraulic system, according to the weight of the ores, when the load of the ores increases, the greater the tension of the connected screen 602, the greater the vibration intensity, when the load of the ores decreases, the smaller the vibration intensity of the connected screen 602, the intermittent movement characteristics of the meshing between the incomplete gear 18 and the force storage wheel 17 makes the feeding conveyor 14 feed intermittently, obtains stable ore weighing, sieves the ores in batches, at any time, according to the weight, obtains the load of the ores, adjusts the flexibility of the connected screen 602, at any time, maintains the stability of the vibration intensity of the screen surface, and makes the sieving effect keep the best state.

[0029] The working principle of the present application is: when the servo motor 13 is powered on and runs, the servo motor 13 drives the crankshaft 3 to rotate, the crankshaft 3 drives the vibrating screen to vibrate up and down, and at the same time drives the vibrating screen to sieve back and forth, so as to sieve the material on the vibrating screen.

[0030] The bolt 122 is screwed on the stud 121 without being screwed tightly, and only plays a blocking role to prevent the upper layer of the supporting plate 7, the transition supporting plate 8 and the lower layer of the supporting plate 9 from being separated, so that the upper layer of the supporting plate 7, the transition supporting plate 8 and the lower layer of the supporting plate 9 maintain a good sliding relationship with each other. The hydraulic system controls the upper adjusting frame 501 and the lower adjusting frame 502 to slide in opposite directions in the sliding groove 4, and the sliding of the upper adjusting frame 501 drives the upper layer of the supporting plate 7 to move through the upper cross beam 10, and the sliding of the lower adjusting frame 502 drives the lower layer of the supporting plate 9 to move through the lower cross beam 11. When the upper cross beam 10 and the lower cross beam 11 move in a relatively close direction, it indicates that the distance between two adjacent adjusting assemblies increases, and the distance between the lower layer of the supporting plate 9 and the adjacent upper layer of the supporting plate 7 increases, so that the connecting screen 602 is tensioned. When the upper cross beam 10 and the lower cross beam 11 move in a relatively far direction, it indicates that the distance between two adjacent adjusting assemblies decreases, and the distance between the lower layer of the supporting plate 9 and the adjacent upper layer of the supporting plate 7 decreases, so that the connecting screen 602 becomes loose.

[0031] The ore that needs to be sieved is first delivered to the feed conveyor 14 by other conveying equipment, the material separating plate 15 separates these ores, and the weighing sensor weighs the ores between every two material separating plates 15 in turn. With the crankshaft 3 driving the vibrating screen to work, the driven friction wheel 19 is also driven to rotate, the driven friction wheel 19 drives the incomplete gear 18 to rotate, the incomplete gear 18 drives the force storage wheel 17 to rotate through the gear slot, and when the incomplete gear 18 drives the force storage wheel 17 to rotate, the elastic pawl in the force storage wheel 17 overcomes the one-way ratchet shaft 16 and cannot drive the one-way ratchet shaft 16 to rotate, so the rotating roller of the feed conveyor 14 will not rotate.

[0032] When the force storage wheel 17 is driven to rotate by the incomplete gear 18, the rope 20 lifts the weight 21 until the side without teeth of the incomplete gear 18 rotates to the side of the force storage wheel 17, the weight 21 pulls the force storage wheel 17 to reverse through the rope 20, at this time, the elastic pawl is firmly engaged with the one-way ratchet shaft 16 to drive the one-way ratchet shaft 16 to rotate, and then the rotating roller of the feeding conveyor 14 is rotated, the rope 20 is released, and the feeding conveyor 14 puts the mineral between the two spacing plates 15 on the vibrating screen for screening, then the feeding conveyor 14 stops feeding, and the weighing sensor weighs the mineral between the two spacing plates 15 again in a stable and stationary state to obtain the weight of the mineral between the two spacing plates 15, before the next feeding of the force storage wheel 17, the control system adjusts the tension degree of the connected screen 602 by driving the two-way hydraulic cylinder 22 through the hydraulic system according to the weight of the mineral, the greater the load of the mineral material, the greater the tension of the connected screen 602, the smaller the load of the material, the lower the vibration intensity of the connected screen 602, the intermittent movement of the incomplete gear 18 and the force storage wheel 17 enables the feeding conveyor 14 to feed intermittently, the stable weighing of the mineral enables the mineral to be screened in batches, the load of the mineral material is obtained according to the weight at any time, the flexibility of the connected screen 602 is adjusted, the vibration intensity of the screen surface is kept stable at any time, and the screening effect is kept in the best state.

[0033] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the foregoing embodiments of the present application are described in detail, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A flexible depth screening device with self-adapting tension adjustment, characterized in that: The device comprises a feeding assembly and a vibrating screen, the feeding assembly and the vibrating screen are installed on a device support, the vibrating screen is arranged obliquely, the feeding assembly is arranged above the feeding end of the vibrating screen, the vibrating screen comprises a pair of side baffles (1), an upper adjusting frame (501), a lower adjusting frame (502) and a plurality of groups of adjusting assemblies, the upper adjusting frame (501) and the lower adjusting frame (502) are slidingly installed on the outer sides of the pair of side baffles (1), the plurality of adjusting assemblies are installed on the upper adjusting frame (501) and the lower adjusting frame (502), the plurality of adjusting assemblies are arranged between the pair of side baffles (1), a connecting screen (602) is arranged between every two groups of adjacent adjusting assemblies, the feeding assembly comprises a feeding conveyor (14) and a weighing sensor, a bidirectional hydraulic cylinder (22) is installed between the upper adjusting frame (501) and the lower adjusting frame (502), the bidirectional hydraulic cylinder (22) is connected with a hydraulic system, and the weighing sensor is connected with a control system circuit; Each group of adjusting assemblies comprises an upper layer of supporting plates (7), a transition supporting plate (8) and a lower layer of supporting plates (9), the bottom of the upper layer of supporting plates (7) is provided with a plurality of studs (121), a plurality of through grooves are formed in the transition supporting plate (8), and the bottom of the transition supporting plate (8) is also provided with a plurality of studs (121); a plurality of through grooves are formed in the lower layer of supporting plates (9), the plurality of studs (121) of the upper layer of supporting plates (7) are inserted into the plurality of through grooves of the transition supporting plate (8), and the plurality of studs (121) of the transition supporting plate (8) are inserted into the plurality of through grooves of the lower layer of supporting plates (9); a bolt (122) is connected to each stud (121); One end of the pair of side baffles (1) towards the outer side is provided with a sliding groove (4), the upper adjusting frame (501) and the lower adjusting frame (502) are slidingly arranged in the sliding groove (4), the upper adjusting frame (501) is located below the lower adjusting frame (502), the upper layer of supporting plates (7) is connected with an upper cross beam (10) through a reinforcing rib below, the bottom of the lower layer of supporting plates (9) is connected with a lower cross beam (11) through a reinforcing rib, a through groove is formed in the pair of side baffles (1) corresponding to each group of adjusting assemblies, the upper cross beam (10) penetrates through the through groove and is connected with the upper adjusting frame (501), and the lower cross beam (11) penetrates through the through groove and is connected with the lower adjusting frame (502); One side of the pair of side baffles (1) close to the feeding end is provided with a feeding screen (601), the feeding screen (601) is connected with the upper layer of supporting plates (7) in the adjusting assembly close to the feeding end, and the connecting screen (602) is connected between the lower layer of supporting plates (9) and the adjacent upper layer of supporting plates (7); The weighing sensor is located in the feeding conveyor (14), the feeding conveyor (14) is provided with a material separating plate (15) on the conveying belt, one side of a rotating roller of the feeding conveyor (14) is coaxially connected with a one-way ratchet shaft (16), a force storage wheel (17) is installed on the one-way ratchet shaft (16), and an elastic pawl is installed at the position where the force storage wheel (17) contacts the one-way ratchet shaft (16); The incomplete gear (18) is rotatably installed on one side of the feeding conveyor (14) close to the force accumulator wheel (17), one side of the incomplete gear (18) is coaxially provided with a driven friction wheel (19), the driven friction wheel (19) is in contact with the crankshaft (3), the contact part of the crankshaft (3) and the driven friction wheel (19) is wrapped with a high friction coefficient material, and the incomplete gear (18) is in meshing transmission with the gear groove on the force accumulator wheel (17).

2. The flexible depth screening device with self-adaptive tension adjustment function according to claim 1, characterized in that: The device support is provided with a supporting rod (2), a crankshaft (3) and a servo motor (13), a pair of side baffles (1) are provided with an axle hole on one side close to the feeding end, a pair of side baffles (1) are provided with a rod groove on one side close to the feeding end, the axle hole is matched with the crankshaft (3), the rod groove is slidably connected with the supporting rod (2), and the motor shaft of the servo motor (13) is connected with one end of the crankshaft (3).

3. The flexible depth screening device with self-adaptive tension adjustment function according to claim 2, characterized in that: The force accumulator wheel (17) is provided with a gear groove and a winding groove, a rope (20) is wound in the winding groove, and one end of the rope (20) is connected with a weight (21).

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