Flexible receiving bucket of heading machine and using method

Abstract

The invention relates to the technical field of material receiving buckets, in particular to a flexible material receiving bucket of a heading machine and a using method.The flexible material receiving bucket of the heading machine comprises a material receiving bucket body, a crushed material conveying belt, a hydraulic rotating assembly, a material pushing plate, a flexible material receiving assembly working state control part and a flexible material receiving assembly; the end of a hydraulic rod of the heading machine is connected with the material receiving bucket, the crushed material conveying belt is arranged in the middle of the material receiving bucket and connected with a middle conveying belt of the heading machine, the two hydraulic rotating assemblies are installed on the two sides of the material receiving bucket respectively, and the material pushing plate is fixedly connected with the output ends of the hydraulic rotating assemblies. And the flexible material receiving assembly working state control part is fixed to the top end of the hydraulic rotating assembly through bolts, the flexible material receiving assembly is installed on the surface of the material pushing plate, the flexible material receiving assembly plays a role in pushing small fragments in the continuous rotating process, the fragments are prevented from crossing the material pushing plate, and the pushing capacity of the small fragments is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of material collecting buckets, and in particular to a flexible material collecting bucket for a roadheader and a method for using the bucket. Background Art

[0002] A roadheader is a large, specialized piece of machinery used for excavating underground roadways, tunnels, and coal mines. Its core function is to crush rock or soil using the teeth on a rotating cutterhead and transport the debris to achieve tunnel excavation. It typically consists of a cutting mechanism, a loading mechanism, a traveling mechanism, a hydraulic system, and an electrical system.

[0003] The loading mechanism is currently generally composed of a collecting bucket with a rotating disk. The fragments in the collecting bucket are concentrated to the center of the bucket by rotating the rotating disk. However, due to the forward-leaning design of the collecting bucket, the current fixed-configuration hard turntable has poor pushing ability for fragments with smaller size and mass, which makes it difficult for the fragments to pass over the rotating disk during the pushing process. Therefore, a flexible collecting bucket for a roadheader and a method for using the same are proposed. Summary of the Invention

[0004] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a flexible collecting bucket for a roadheader and a method for using the bucket.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a flexible material collecting bucket for a roadheader, comprising a material collecting bucket, a crushing material conveyor belt, a hydraulic rotating assembly, a pushing plate, a flexible material collecting assembly working state control unit and a flexible material collecting assembly;

[0006] The collecting bucket is connected to the tunnel boring machine body via a rotating shaft, and the end of the hydraulic rod of the tunnel boring machine is connected to the collecting bucket;

[0007] The crushed material conveyor belt is opened at the middle position of the material receiving bucket, and the crushed material conveyor belt is connected to the middle conveyor belt of the roadheader;

[0008] The two sets of hydraulic rotating components are respectively installed on both sides of the receiving bucket;

[0009] The push plate is fixedly connected to the output end of the hydraulic rotating assembly;

[0010] The working state control part of the flexible material receiving component is fixed to the top of the hydraulic rotating component by bolts;

[0011] The flexible material receiving component is installed on the surface of the pushing plate.

[0012] Preferably, the front end of the material receiving bucket is tilted forward, and both sides of the front end of the material receiving bucket are tilted to the side.

[0013] Preferably, the hydraulic rotation assembly includes a hydraulic motor, a turntable and a top guard plate. The hydraulic motor is installed inside the material receiving bucket, the turntable is installed at the output end of the hydraulic motor, the bottom of the turntable is in contact with the top of the material receiving bucket, the top guard plate is installed at the top of the hydraulic motor, and the top guard plate is stationary relative to the turntable.

[0014] Preferably, several groups of the pusher plates are welded to the side surface of the turntable at equal intervals, the middle portion of the pusher plates is bent to form an arc-shaped pusher surface, and the end portion of the pusher plates is formed with a material receiving protrusion.

[0015] Preferably, the working state control part of the flexible material receiving component includes a fixed plate, a movable limiting component and a downward pressure limiting plate, the fixed plate is arranged on the top of the top guard plate, the movable limiting component is arranged on the side of the fixed plate, and the movable limiting component fixes the fixed plate to the surface of the top guard plate, the downward pressure limiting plate is welded to the bottom of the fixed plate, and the downward pressure limiting plate is designed to cooperate with the turntable.

[0016] Preferably, the movable limiting assembly includes a fixing bolt, an elastic rubber sleeve, a fixed pressure plate and a fixing nut. The two groups of the fixing bolts are respectively installed in the two groups of through holes inside the fixing bolts. A group of elastic rubber sleeves are sleeved on the outside of the two groups of fixing bolts. The fixed pressure plate is connected between the two groups of fixing bolts. The tops of the two groups of fixing bolts are threaded with a group of fixing nuts. The two groups of fixing nuts press down the fixed pressure plate so that the fixed pressure plate pushes the elastic rubber sleeve to contact the fixed plate.

[0017] Preferably, the flexible material receiving assembly includes a rotating seat, a fixed rod, a movable rod and a flexible pushing surface. The rotating seat is welded to the end of the push plate surface, the movable rod is welded to the bottom end of the rotating seat and welded to the push plate surface, the movable rod is installed at the middle position inside the rotating seat through a rotating shaft, and the flexible pushing surface is fixed between the fixed rod and the movable rod.

[0018] Preferably, the end of the rotating seat is designed to be inclined, the end of the movable rod extends from the inside of the rotating seat, and both sides of the movable rod are rounded to cooperate with the downward pressure limiting plate.

[0019] Preferably, the middle parts of the fixed rod and the movable rod are both provided with grooves for accommodating the flexible pushing surface, the flexible pushing surface is V-designed, and the flexible pushing surface is selected to have a curling configuration.

[0020] The method for using the flexible collecting bucket of a roadheader includes the following steps:

[0021] Step S1: The tunnel boring machine moves forward, and the collecting bucket is inserted into the debris pile as the tunnel boring machine moves forward. The collecting bucket is inserted into the debris pile, and the debris is transferred to the surface of the collecting bucket;

[0022] In step S2, the hydraulic motor operates and drives the turntable to rotate. The pusher plate rotates continuously under the drive of the turntable. The continuously rotating pusher plate pushes the debris on the surface of the receiving bucket, so that the debris on the surface of the receiving bucket gathers toward the middle of the receiving bucket and falls into the debris conveyor belt.

[0023] Step S3, the rotating seat rotates synchronously with the rotation of the push plate, and the bottom arc portion of the downward-pressing limiting plate plays a role in pressing down the end of the movable rod in the rotating seat;

[0024] In step S4, the rotating seat is continuously guided by the arc-shaped portion of the downward-pressing limiting plate to rotate downward about the rotating axis, and the other end of the movable rod rotates upward about the rotating axis. At this time, the movable rod is opened relative to the fixed rod, and the flexible pushing surface is opened and tightened under the drive of the movable rod. At this time, the fixed rod, the movable rod and the flexible pushing surface form a flexible plane;

[0025] Step S5, while the movable rod is pressed down by the downward limiting plate, a flexible plane is formed to push the small fragments during the continuous rotation process;

[0026] Step S6: After the rotating seat moves out from under the downward limiting plate, the movable rod is no longer under the downward pressure of the movable limiting assembly and naturally falls around the rotating axis under the action of gravity. During the falling process of the movable rod, the flexible pushing surface rewinds from the flat expanded state to the initial V-shape;

[0027] Step S7: In the next cycle of steps S1-S6, the flexible material receiving component continuously and repeatedly switches between the open and closed states.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. The present invention is provided with a flexible material receiving component working state control part and a flexible material receiving component. The flexible material receiving component working state control part is fixed to the top of the hydraulic rotating component by bolts. The flexible material receiving component is installed on the surface of the pushing plate. During continuous rotation, the end of the movable rod is continuously guided by the arc-shaped part of the downward pressure limiting plate and rotates downward around the rotating axis, and the other end of the movable rod rotates upward around the rotating axis. At this time, the movable rod is opened relative to the fixed rod, and the flexible pushing surface is opened and tightened under the drive of the movable rod. At this time, the fixed rod, the movable rod and the flexible pushing surface form a flexible plane, thereby pushing small fragments during continued rotation, preventing the fragments from crossing the pushing plate, and improving the pushing ability of small fragments.

[0030] 2. The movable limiting assembly in the present invention includes a fixing bolt, an elastic rubber sleeve, a fixed pressure plate and a fixing nut. The two groups of fixed nuts press down the fixed pressure plate so that the fixed pressure plate pushes the elastic rubber sleeve to contact the fixed plate. When the fixed pressure plate cooperates with the elastic rubber sleeve to press down and fix the fixed plate, the flexible design of the elastic rubber sleeve can provide a certain range of upward movement space for the fixed plate, thereby adjusting the upward movement amount of the fixed plate, and then adjusting the clearance space of the downward limiting plate at the bottom of the fixed plate when it contacts the flexible material receiving assembly, thereby realizing different degrees of downward pressure on the flexible material receiving assembly and adjusting the flexible material receiving assembly to a certain degree of opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of the material collecting bucket of the present invention;

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the hydraulic rotating assembly, the flexible material receiving assembly working state control unit and the flexible material receiving assembly of the present invention;

[0034] Figure 4 This is a schematic diagram of the coordinated structure of the flexible material receiving assembly working state control unit and the flexible material receiving assembly of the present invention;

[0035] Figure 5 It is a schematic structural diagram of the downward pressure limiting plate of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the flexible material receiving component of the present invention in the stored state.

[0037] The numbers in the figure represent:

[0038] 1. Material collecting bucket; 2. Crushing material conveyor belt; 3. Hydraulic rotating assembly; 31. Hydraulic motor; 32. Turntable; 33. Top guard plate; 4. Pushing plate; 5. Flexible material collecting assembly working status control unit; 51. Fixed plate; 52. Movable limiting assembly; 521. Fixing bolt; 522. Elastic rubber sleeve; 523. Fixed pressure plate; 524. Fixed nut; 53. Lower pressure limiting plate; 6. Flexible material collecting assembly; 61. Rotating seat; 62. Fixed rod; 63. Movable rod; 64. Flexible pushing surface. DETAILED DESCRIPTION

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the above and other technical features and advantages of the present invention are further described. However, the following embodiments are merely preferred embodiments of the present invention and are not exhaustive.

[0040] Example:

[0041] like Figures 1-6As shown, the present invention provides a flexible material collecting bucket for a roadheader and a method of using the same, comprising a material collecting bucket 1, a crushing material conveyor belt 2, a hydraulic rotating assembly 3, a pushing plate 4, a flexible material collecting assembly working state control unit 5, and a flexible material collecting assembly 6;

[0042] The collecting bucket 1 is connected to the tunnel boring machine body through a rotating shaft, and the end of the tunnel boring machine's hydraulic rod is connected to the collecting bucket 1;

[0043] The crushed material conveyor belt 2 is opened in the middle position of the receiving bucket 1, and the crushed material conveyor belt 2 is connected to the middle conveyor belt of the tunnel boring machine;

[0044] Two sets of hydraulic rotating components 3 are respectively installed on both sides of the receiving bucket 1;

[0045] The push plate 4 is fixedly connected to the output end of the hydraulic rotating assembly 3;

[0046] The flexible material receiving assembly working state control part 5 is fixed to the top of the hydraulic rotating assembly 3 by bolts;

[0047] The flexible material receiving assembly 6 is installed on the surface of the pushing plate 4 .

[0048] The front end of the collecting bucket 1 is tilted forward, and both sides of the front end of the collecting bucket 1 are tilted to the side. When the collecting bucket 1 moves forward with the tunnel boring machine body, it can be inserted into the pile of fragments. Through the tilted design, the collecting bucket 1 can better push the fragments and transfer the fragments to the surface of the collecting bucket 1.

[0049] The hydraulic rotating assembly 3 includes a hydraulic motor 31, a rotating disc 32 and a top guard plate 33;

[0050] The hydraulic motor 31 is installed inside the material receiving bucket 1, the turntable 32 is installed at the output end of the hydraulic motor 31, the bottom of the turntable 32 is in contact with the top of the material receiving bucket 1, and the top guard plate 33 is installed on the top of the hydraulic motor 31. The top guard plate 33 is stationary relative to the turntable 32. The bottom of the turntable 32 is reduced by being in contact with the top of the material receiving bucket 1. The hydraulic motor 31 can drive the turntable 32 to rotate when working.

[0051] Several groups of pusher plates 4 are welded to the side surface of the turntable 32 at equal intervals. The middle part of the pusher plate 4 is bent to form an arc-shaped pushing surface. The end of the pusher plate 4 is formed with a material receiving protrusion. The pusher plate 4 rotates continuously under the drive of the turntable 32. The continuously rotating pusher plate 4 can push the fragments on the surface of the receiving bucket 1, so that the fragments on the surface of the receiving bucket 1 gather to the middle of the receiving bucket 1 and fall into the fragment conveyor belt 2.

[0052] The flexible material receiving component working state control part 5 includes a fixed plate 51, a movable limiting component 52 and a downward limiting plate 53;

[0053] The fixed plate 51 is arranged on the top of the top guard plate 33, the movable limiting component 52 is arranged on the side of the fixed plate 51, and the movable limiting component 52 fixes the fixed plate 51 to the surface of the top guard plate 33, and the downward pressure limiting plate 53 is welded to the bottom of the fixed plate 51. The downward pressure limiting plate 53 is designed to cooperate with the turntable 32. When the flexible material receiving component 6 rotates synchronously with the rotation of the pushing plate 4, the bottom arc-shaped part of the downward pressure limiting plate 53 plays a downward pressure on the flexible material receiving component 6. During the further rotation of the flexible material receiving component 6, the downward pressure limiting plate 53 will further play a downward pressure on the flexible material receiving component 6.

[0054] The movable limiting assembly 52 includes a fixing bolt 521 , an elastic rubber sleeve 522 , a fixing pressure plate 523 and a fixing nut 524 ;

[0055] The two sets of fixing bolts 521 are respectively installed in the two sets of through holes inside the fixing bolts 521. The outside of the two sets of fixing bolts 521 is sleeved with a set of elastic rubber sleeves 522. The fixing pressure plate 523 is connected between the two sets of fixing bolts 521. The tops of the two sets of fixing bolts 521 are threadedly connected with a set of fixing nuts 524. The two sets of fixing nuts 524 press down the fixing pressure plate 523 so that the fixing pressure plate 523 pushes the elastic rubber sleeve 522 to contact the fixing plate 51. When the fixing pressure plate 523 cooperates with the elastic rubber sleeve 522 to press down and fix the fixing plate 51, the flexible design of the elastic rubber sleeve 522 can provide a certain range of upward movement space for the fixing plate 51, thereby adjusting the upward movement of the fixing plate 51, and then adjusting the clearance space of the downward pressure limiting plate 53 at the lower part of the fixing plate 51 when it contacts the flexible material receiving component 6, thereby achieving different degrees of downward pressure on the flexible material receiving component 6, and adjusting the flexible material receiving component 6 to a certain degree of opening.

[0056] The flexible material receiving assembly 6 includes a rotating seat 61, a fixed rod 62, a movable rod 63 and a flexible material pushing surface 64;

[0057] The rotating seat 61 is welded to the end of the surface of the push plate 4, the movable rod 63 is welded to the bottom end of the rotating seat 61 and welded to the surface of the push plate 4, the movable rod 63 is installed at the middle position inside the rotating seat 61 through the rotating shaft, and the flexible pushing surface 64 is fixed between the fixed rod 62 and the movable rod 63.

[0058] The end of the rotating seat 61 is designed to be inclined, and the end of the movable rod 63 extends from the inside of the rotating seat 61. Both sides of the movable rod 63 are rounded to cooperate with the downward pressure limiting plate 53. When the pushing plate 4 drives the rotating seat 61 to rotate to the bottom of the downward pressure limiting plate 53, the arc-shaped part of the downward pressure limiting plate 53 first contacts the end of the movable rod 63. During the continuous rotation process, the end of the movable rod 63 is continuously guided by the arc-shaped part of the downward pressure limiting plate 53 and rotates downward around the rotating axis, and the other end of the movable rod 63 rotates upward around the rotating axis. At this time, the movable rod 63 is opened relative to the fixed rod 62, and the flexible pushing surface 64 is opened and tightened under the drive of the movable rod 63. At this time, the fixed rod 62, the movable rod 63 and the flexible pushing surface 64 form a flexible plane, thereby pushing small fragments during the continued rotation process.

[0059] The middle part of the fixed rod 62 and the movable rod 63 are both provided with grooves for accommodating the flexible pushing surface 64. The flexible pushing surface 64 is designed to be V-shaped, and the flexible pushing surface 64 adopts a curling configuration. When the movable rod 63 is no longer subjected to the downward pressure of the movable limiting component 52, it will naturally fall around the rotating axis under the action of gravity. During the falling process of the movable rod 63, the flexible pushing surface 64 is rolled back from the flat unfolded state to the initial V shape. During the rolling back process of the flexible pushing surface 64, the movable rod 63 rotates and falls back around the rotating axis until it covers the fixed rod 62. The flexible pushing surface 64 is finally folded into the receiving groove in the middle of the fixed rod 62 and the movable rod 63.

[0060] How to use the flexible collecting bucket of the tunnel boring machine:

[0061] The tunnel boring machine moves forward, and the collecting bucket 1 is inserted into the debris pile as the tunnel boring machine moves forward. The collecting bucket 1 is inserted into the debris pile, and the debris is transferred to the surface of the collecting bucket 1;

[0062] The hydraulic motor 31 works and drives the turntable 32 to rotate. The push plate 4 rotates continuously under the drive of the turntable 32. The continuously rotating push plate 4 pushes the fragments on the surface of the receiving bucket 1, so that the fragments on the surface of the receiving bucket 1 gather toward the middle of the receiving bucket 1 and fall into the fragment conveyor belt 2. The rotating seat 61 rotates synchronously with the rotation of the push plate 4. The bottom arc portion of the downward pressure limiting plate 53 presses down the end of the movable rod 63 in the rotating seat 61. The rotating seat 61 is continuously guided by the arc portion of the downward pressure limiting plate 53 and rotates downward around the rotating axis. The other end of the movable rod 63 rotates upward around the rotating axis. At this time, the movable rod 63 is opened relative to the fixed rod 62, and the flexible pushing surface 64 is opened and tightened under the drive of the movable rod 63. At this time, the fixed rod 62, the movable rod 63 and the flexible pushing surface 64 form a flexible plane.

[0063] While the movable rod 63 is pressed down by the downward limiting plate 53, a flexible plane is formed to push the small fragments during the continuous rotation. After the rotating seat 61 moves out from under the downward limiting plate 53, the movable rod 63 is no longer pressed down by the movable limiting component 52 and will naturally fall around the rotating axis under the action of gravity. During the falling process of the movable rod 63, the flexible pushing surface 64 is rolled back from the flat expanded state to the initial V shape. In the next cycle, the flexible receiving component 6 continues to repeat the switching between the open and closed states.

[0064] The above description is merely a preferred embodiment of the present invention and is intended to be illustrative rather than restrictive of the present invention. Those skilled in the art will appreciate that many changes, modifications, and even equivalents may be made to the present invention within the spirit and scope of the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A flexible collecting bucket for a roadheader, characterized in that: It comprises a material collecting bucket (1), a crushed material conveyor belt (2), a hydraulic rotating assembly (3), a material pushing plate (4), a flexible material collecting assembly working state control unit (5) and a flexible material collecting assembly (6); The collecting bucket (1) is connected to the tunnel boring machine body via a rotating shaft, and the end of the hydraulic rod of the tunnel boring machine is connected to the collecting bucket (1); The crushed material conveyor belt (2) is opened at the middle position of the material receiving bucket (1), and the crushed material conveyor belt (2) is connected to the middle conveyor belt of the tunnel boring machine; The two groups of hydraulic rotating components (3) are respectively installed on both sides of the material collecting bucket (1); The push plate (4) is fixedly connected to the output end of the hydraulic rotating assembly (3); The flexible material receiving assembly working state control part (5) is fixed to the top of the hydraulic rotating assembly (3) by means of bolts; The flexible material receiving component (6) is installed on the surface of the pushing plate (4).

2. A flexible collecting bucket for a roadheader according to claim 1, characterized in that: The front end of the material collecting bucket (1) is tilted forward, and both sides of the front end of the material collecting bucket (1) are designed to be tilted sideways.

3. The flexible collecting bucket for a roadheader according to claim 2, characterized in that: The hydraulic rotating assembly (3) includes a hydraulic motor (31), a turntable (32) and a top guard plate (33); the hydraulic motor (31) is installed inside the material collecting bucket (1); the turntable (32) is installed at the output end of the hydraulic motor (31); the bottom of the turntable (32) is in contact with the top of the material collecting bucket (1); the top guard plate (33) is installed at the top of the hydraulic motor (31); and the top guard plate (33) is stationary relative to the turntable (32).

4. The flexible collecting bucket for a roadheader according to claim 2, characterized in that: Several groups of the pusher plates (4) are welded to the side surface of the turntable (32) at equal intervals. The middle portion of the pusher plates (4) is bent to form an arc-shaped pusher surface. The end portion of the pusher plates (4) is formed with a material receiving protrusion.

5. The flexible collecting bucket for a roadheader according to claim 1, characterized in that: The flexible material receiving component working state control part (5) includes a fixed plate (51), a movable limiting component (52) and a downward pressure limiting plate (53), wherein the fixed plate (51) is arranged on the top of the top guard plate (33), the movable limiting component (52) is arranged on the side of the fixed plate (51), and the movable limiting component (52) fixes the fixed plate (51) to the surface of the top guard plate (33), and the downward pressure limiting plate (53) is welded to the bottom of the fixed plate (51), and the downward pressure limiting plate (53) is designed to be arc-shaped to match the turntable (32).

6. The flexible collecting bucket for a roadheader according to claim 5, characterized in that: The movable limiting component (52) comprises a fixing bolt (521), an elastic rubber sleeve (522), a fixing pressure plate (523) and a fixing nut (524). The two groups of fixing bolts (521) are respectively installed in the two groups of through holes inside the fixing bolt (521). The outside of the two groups of fixing bolts (521) is sleeved with a group of elastic rubber sleeves (522). The fixing pressure plate (523) is connected between the two groups of fixing bolts (521). The tops of the two groups of fixing bolts (521) are threadedly connected with a group of fixing nuts (524). The two groups of fixing nuts (524) press down the fixing pressure plate (523) so that the fixing pressure plate (523) pushes the elastic rubber sleeve (522) to contact the fixing plate (51).

7. The flexible collecting bucket for a roadheader according to claim 5, characterized in that: The flexible material receiving assembly (6) comprises a rotating seat (61), a fixed rod (62), a movable rod (63) and a flexible pushing surface (64); the rotating seat (61) is welded to the end of the surface of the pushing plate (4); the movable rod (63) is welded to the bottom end of the rotating seat (61) and is welded to the surface of the pushing plate (4); the movable rod (63) is installed at the middle position inside the rotating seat (61) through a rotating shaft; and the flexible pushing surface (64) is fixed between the fixed rod (62) and the movable rod (63).

8. The flexible collecting bucket for a roadheader according to claim 7, characterized in that: The end of the rotating seat (61) is designed to be inclined, and the end of the movable rod (63) extends from the inside of the rotating seat (61). Both sides of the movable rod (63) are rounded to cooperate with the downward pressure limiting plate (53).

9. The flexible collecting bucket for a roadheader according to claim 7, characterized in that: The middle parts of the fixed rod (62) and the movable rod (63) are both provided with grooves for receiving the flexible pushing surface (64). The flexible pushing surface (64) is V-shaped and has a curled configuration.

10. A method for using the flexible collecting bucket of a roadheader according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1, the tunnel boring machine moves forward, and the collecting bucket (1) is inserted into the debris pile as the tunnel boring machine body moves forward. The collecting bucket (1) is inserted into the debris pile, and the debris is transferred to the surface of the collecting bucket (1); In step S2, the hydraulic motor (31) operates and drives the turntable (32) to rotate. The push plate (4) continuously rotates under the drive of the turntable (32). The continuously rotating push plate (4) pushes the fragments on the surface of the receiving bucket (1), so that the fragments on the surface of the receiving bucket (1) gather toward the middle of the receiving bucket (1) and fall into the fragment conveyor belt (2); Step S3, the rotating seat (61) rotates synchronously with the rotation of the push plate (4), and the bottom arc portion of the downward-pressing limiting plate (53) plays a role in pressing down the end of the movable rod (63) in the rotating seat (61); In step S4, the rotating seat (61) is continuously guided by the arc portion of the downward pressure limiting plate (53) and rotates downward around the rotating axis, and the other end of the movable rod (63) rotates upward around the rotating axis. At this time, the movable rod (63) is opened relative to the fixed rod (62), and the flexible pushing surface (64) is opened and tightened under the drive of the movable rod (63). At this time, the fixed rod (62), the movable rod (63) and the flexible pushing surface (64) form a flexible plane. Step S5, while the movable rod (63) is pressed down by the downward limiting plate (53), a flexible plane is formed to push the small fragments during the continuous rotation process; Step S6, after the rotating seat (61) moves out from under the downward pressure limiting plate (53), the movable rod (63) is no longer subject to the downward pressure of the movable limiting component (52) and naturally falls around the rotating axis under the action of gravity. During the falling process of the movable rod (63), the flexible pushing surface (64) rewinds from the flat unfolded state to the initial V-shape; Step S7, in the next cycle of steps S1-S6, the flexible material receiving component (6) continuously and repeatedly switches between the open and closed states.

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