Energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence area

Abstract

The invention discloses an energy-saving type crushing and conveying device for coal gangue filling in a coal mining subsidence area, and relates to the technical field of coal gangue filling, the energy-saving type crushing and conveying device comprises a conveyor main body, an outer fixed rack and an inner telescopic rack, the outer fixed rack is arranged at the top end of the conveyor main body, and the inner telescopic rack is arranged in the outer fixed rack; the two sides of the inner telescopic rack are in sliding connection with the inner wall of the outer fixed rack; the machine head is adjusted to face different height positions, coal gangue on the surface of the conveying belt can be conveyed to the different height positions, the conveying belt moves the coal gangue to the proper height, a hollow layer cannot be formed again, and the geological stability of a filled coal mine cannot be affected; the conveying belt is prevented from being separated from the surfaces of the adjusting machine head and the inner telescopic rack when the angle of the machine head is adjusted, it is ensured that the conveying belt is attached to the adjusting machine head and the inner telescopic rack, large coal gangue is conveyed to the designated height along with the conveying belt after being crushed, and the filled coal gangue is more compact.

Description

Technical Field

[0001] The invention relates to the technical field of gangue filling, in particular to an energy-saving crushing and conveying device for gangue filling in coal mining subsidence areas. Background Art

[0002] Coal gangue filling in coal mining subsidence areas is an important control technology for land subsidence caused by coal mining. This technology mainly uses the coal gangue generated during coal mining to fill the subsidence area in order to restore the land use value and improve the ecological environment. The coal gangue filling technology uses coal gangue as filling material, reasonably arranges and compacts it, fills it into the coal mining subsidence area, and then covers it with a certain thickness of soil to facilitate land reclamation and utilization, which is of great significance to promoting the sustainable development of mining areas.

[0003] In the Chinese patent literature, the patent number CN118343446B is titled "A telescopic conveyor belt". The description states that "the telescopic conveyor belt comprises a mounting frame 1, a telescopic frame 2 and a conveyor belt body 11; the mounting frame 1 is a frame-type structure, the telescopic frame 2 is mounted on the mounting frame 1, and the conveyor belt body 11 is sleeved and mounted on the telescopic frame 2; ... the fixed seat 21, the extension seat 22 and the end seat 23 are slidably sleeved in sequence", which shows that the telescopic assembly can extend and retract the telescopic frame along the mounting frame;

[0004] However, in the prior art, when the telescopic frame is extended and retracted along the mounting frame, the angle of the telescopic frame cannot be adjusted, and all the gangue on the telescopic frame can only be transported to a specific position. The gangue cannot be transported to a place slightly higher than the telescopic frame, thereby affecting the efficiency of the conveyor belt in transporting the gangue. In addition, the inability to transport the gangue to a higher place will cause a hollow layer again, affecting the geological stability of the coal mine after filling. Since the gangue particles are relatively large, it is easy to cause the place where the gangue is filled to be loose, which will also cause the coal mine area to collapse again. Summary of the invention

[0005] The object of the present invention is to provide an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas, so as to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas comprises a conveyor body, an external fixed frame and an internal telescopic frame, wherein the external fixed frame is arranged at the top of the conveyor body, and the internal telescopic frame is arranged inside the external fixed frame, the two sides of the internal telescopic frame are slidably connected with the inner wall of the external fixed frame, a conveyor belt is sleeved between the external fixed frame and the internal telescopic frame, an angle adjustment structure is arranged at the end of the internal telescopic frame, the angle adjustment structure comprises an adjustment head, the adjustment head is arranged at the end of the internal telescopic frame, and a fixed shaft is arranged at the intersection of the internal telescopic frame and the adjustment head, the side walls of the adjustment head are welded with tripods, the inside of the tripods is provided with guide grooves, and the tripods are provided with guide grooves. The upper edge and lower edge of the tip of the plate are respectively provided with a toggle rod 2 and a toggle rod 1, and an incomplete gear is provided on the edge of the toggle rod 1. A driving motor is provided on the tip edge of the tripod, and a spur gear is provided at the end of the driving motor. The axis of the spur gear is rotatably connected to the tripod, and the spur gear is meshed with the incomplete gear of the toggle rod 1. The toggle rod 1 and the toggle rod 2 are connected by a four-bar mechanism, and the toggle rod 1 and the toggle rod 2 rotate synchronously. Guide rods are provided at both side ends of the external fixed frame and on both sides of the inner telescopic frame, and guide columns are provided at the ends of the two guide rods, and the guide columns are located inside the guide grooves. The positions of the guide columns and the guide grooves are used to determine the inclination angle of the adjustment head.

[0008] As a preferred technical solution of the present invention, the four-bar mechanism constitutes a double rocker mechanism, and the four-bar mechanism includes a connecting rod 1 that rotates synchronously with the toggle rod 1, a connecting rod 2 that rotates synchronously with the toggle rod 2, and an intermediate rod connected to the connecting rod 1 and the connecting rod 2, and the two ends of the intermediate rod are respectively rotatably connected to the connecting rod 1 and the connecting rod 2, and the four-bar mechanism is used to control the direction of the floating rod 1 and the toggle rod 2.

[0009] As a preferred technical solution of the present invention, the guide groove includes guide groove one, guide groove two and guide groove three, and the guide groove one, guide groove two and guide groove three are arranged in an "A" shape, and the toggle rod one and the toggle rod two are arranged in an "E" shape. The end of the adjustment head and the end of the inner telescopic frame are rotatably connected, and the rotation center of the end of the tripod is aligned with the axis of the fixed shaft.

[0010] As a preferred technical solution of the present invention, the tips of the toggle rod 1 and the toggle rod 2 are both facing one guide groove, the guide column at the end of the guide rod is slidably connected to the inside of the guide groove 1, and the end of the adjustment head is arranged obliquely upward.

[0011] As a preferred technical solution of the present invention, the tips of the toggle rod 1 and the toggle rod 2 are both facing the guide groove 2, the guide column at the end of the guide rod is slidably connected to the inside of the guide groove 2, and the end of the adjustment head is arranged horizontally.

[0012] As a preferred technical solution of the present invention, the tips of the toggle rod one and the toggle rod two are both facing the guide groove three, the guide column at the end of the guide rod is slidably connected to the inside of the guide groove three, and the end of the adjustment head is arranged obliquely downward.

[0013] As a preferred technical solution of the present invention, a crushing structure is provided at the end of the inner telescopic frame, and the crushing structure includes two connecting plates, which are respectively arranged on both sides of the end of the inner telescopic frame, and the two connecting plates are integrally manufactured with the inner telescopic frame. A rotating shaft is provided between the top and bottom ends of the two connecting plates, and a rotating cylinder is provided at the rotating shaft located at the top of the connecting plate, and a circle of fixed strips 1 is welded in the middle of the rotating cylinder, and a row of crushing teeth is welded on the edge of each fixed strip 1, and the annularly arranged fixed strips 1 are in contact with the conveyor belt.

[0014] As a preferred technical solution of the present invention, the rotating shaft located at the bottom end of the inner telescopic frame contacts the lower surface of the conveyor belt, the two ends of the rotating shaft located at the top end of the inner telescopic frame are rotatably connected to the connecting plate, and the rotating radius of the fixed bar is equal to the distance between the conveyor belt and the top rotating shaft.

[0015] As a preferred technical solution of the present invention, reserved grooves are provided on both side ends of the inner telescopic frame, a fixed bar 2 is arranged between the two reserved grooves, there is a gap between the fixed bar 2 and the upper surface of the conveyor belt, floating rod 1 and floating rod 2 are welded at both ends of the fixed bar 2, the floating rod 1 and the floating rod 2 are both located inside the reserved grooves, telescopic springs are sleeved on the outside of the two floating rods 1 and on both sides of the fixed bar 2, a row of crushing grooves are provided on the edge of the fixed bar 2 and near the crushing teeth, and the crushing teeth and the crushing grooves are used to crush coal gangue.

[0016] As a preferred technical solution of the present invention, the floating rod 1 and the floating rod 2 are both movably connected to the inside of the reserved groove, the crushing teeth are close to or away from the crushing groove, and the crushing teeth are slidably connected to the side wall of the crushing groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] An angle adjustment structure is provided, and the adjustment head and the tripod are rotated around the fixed axis, so that the adjustment head is directed to different height positions, and the coal gangue on the surface of the conveyor belt can be transported to different height positions;

[0019] The toggle rod 1 and the toggle rod 2 are adjusted by using a four-bar mechanism, and the guide column at the end of the guide rod can move along the gap between the toggle rod 1 and the toggle rod 2, so that the adjustment head and the tripod can be adjusted to a specific height, and the conveyor belt moves the coal gangue to a suitable height, which will not cause a hollow layer again and affect the geological stability of the coal mine after filling;

[0020] A crushing structure is provided, which can limit the upper and lower surfaces of the conveyor belt by using the bottom rotating shaft and the annular fixing strip, so as to avoid the conveyor belt from being separated from the adjustment head and the inner telescopic frame surface when adjusting the head angle, and ensure that the conveyor belt fits the adjustment head and the inner telescopic frame;

[0021] Through the contact between the fixed bar one and the fixed bar two, the coal gangue can be crushed when it is located between the fixed bar one and the fixed bar two. After the larger coal gangue is crushed, it is transported to a specified height along the conveyor belt, making the filled coal gangue more dense. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a main structural diagram of an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to the present invention;

[0024] Figure 2 It is a schematic diagram of a conveyor belt and an inner telescopic frame of an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to the present invention;

[0025] Figure 3 This is a schematic diagram of the angle adjustment structure of an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to the present invention;

[0026] Figure 4 It is a schematic diagram of the rotation state of the adjustment head of an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to the present invention;

[0027] Figure 5 This is a schematic diagram of the coordination of a guide column and a guide groove of an energy-saving crushing and conveying device for filling coal gangue in a coal mining subsidence area according to the present invention;

[0028] Figure 6 This is a schematic diagram of the cooperation between the guide column and the guide groove of an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to the present invention;

[0029] Figure 7 It is a schematic diagram of the coordination of the guide column and the guide groove of an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to the present invention;

[0030] Figure 8 It is a schematic diagram of the crushing structure of an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to the present invention;

[0031] Fig. 9 It is a schematic diagram of a rotating drum and a fixed bar of an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to the present invention;

[0032] Fig.10The present invention is a schematic diagram of the coordination of the crushing teeth and crushing trough of an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas.

[0033] In the figure: 1. conveyor body; 2. external fixed frame; 3. conveyor belt; 4. internal telescopic frame; 5. angle adjustment structure; 51. adjustment head; 52. fixed shaft; 53. tripod; 54. guide groove; 541. guide groove one; 542. guide groove two; 543. guide groove three; 55. guide rod; 56. guide column; 57. drive motor; 58. spur gear; 59. toggle rod one; 510. incomplete gear; 511. four-bar mechanism; 512. toggle rod two; 6. crushing structure; 61. connecting plate; 62. rotating shaft; 63. rotating cylinder; 64. fixed bar one; 65. crushing teeth; 66. fixed bar two; 67. reserved groove; 68. crushing groove; 69. floating rod one; 610. telescopic spring; 611. floating rod two. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] See also Figure 1-Figure 4As shown, an energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas includes a conveyor body 1, an external fixed frame 2 and an internal telescopic frame 4. The external fixed frame 2 is arranged at the top of the conveyor body 1, and the internal telescopic frame 4 is arranged inside the external fixed frame 2. Both sides of the internal telescopic frame 4 are slidably connected with the inner wall of the external fixed frame 2. The telescopic conveyor belt 3 refers to a conveying mechanism that can be extended or shortened in the length direction, and the length of its transportation distance can be adjusted according to actual needs. The internal telescopic frame 4 can be extended and retracted, and the length of the conveyor belt 3 can be adjusted when the internal telescopic frame 4 is extended and retracted to ensure that the conveyor belt 3 and the internal telescopic frame 4 are extended to the specified position. A sleeve is provided between the external fixed frame 2 and the internal telescopic frame 4. Conveyor belt 3, coal gangue is placed on the conveyor belt 3 so that the coal gangue is transported to the end of the conveyor belt 3, the end of the inner telescopic frame 4 is provided with an angle adjustment structure 5, the angle adjustment structure 5 includes an adjustment head 51, the adjustment head 51 is provided at the end of the inner telescopic frame 4, and a fixed shaft 52 is provided at the intersection of the inner telescopic frame 4 and the adjustment head 51, the side walls of the adjustment head 51 are welded with tripods 53, the ends of the tripods 53 are rotatably connected with the fixed shaft 52, so that the adjustment head 51 can face different angles, and a guide groove 54 is provided inside the tripod 53, and the upper edge and lower edge of the tip of the tripod 53 are respectively provided with a toggle rod 2 512 and a toggle rod 1 59, which can be used to adjust the toggle rod 1 59 and the toggle rod 2 51 2 to change the angle, the edge of the toggle rod 1 59 is provided with an incomplete gear 510, the tip edge of the tripod 53 is provided with a driving motor 57, the end of the driving motor 57 is provided with a spur gear 58, the axis of the spur gear 58 is rotatably connected with the tripod 53, the spur gear 58 is meshed with the incomplete gear 510 of the toggle rod 1 59, the driving motor 57 drives the spur gear 58 to rotate, so that the spur gear 58 and the incomplete gear 510 of the toggle rod 1 59 are transmitted, the toggle rod 1 59 can rotate around its axis, the toggle rod 1 59 and the toggle rod 2 512 are connected by a four-bar mechanism 511, the toggle rod 1 59 and the toggle rod 2 512 rotate synchronously, and the two side ends of the external fixed frame 2 and located at the inner telescopic Guide rods 55 are provided on both sides of the frame 4, and guide columns 56 are provided at the ends of the two guide rods 55, and the guide columns 56 are located inside the guide grooves 54. The positions of the guide columns 56 and the guide grooves 54 are used to determine the inclination angle of the adjustment head 51. When the toggle rod 1 59 is rotated, the toggle rod 2 512 is swung by the four-bar mechanism 511, so that the toggle rod 1 59 and the toggle rod 2 512 are pointed to the guide grooves 54. When the inner telescopic frame 4 is extended or retracted, the guide rod 55 welded to the outside of the outer fixed frame 2 moves relative to the inner telescopic frame 4, and the guide column 56 at the end of the guide rod 55 moves along the inside of the guide grooves 54, so as to adjust the angles of the adjustment head 51 and the tripod 53, and the coal gangue can be rotated to a suitable angle.

[0037] See also Figure 3-Figure 7As shown in the figure, the four-bar mechanism 511 forms a double-rocker mechanism. The four-bar mechanism 511 includes a first connecting rod that rotates synchronously with the first拨动杆 (the specific name might need more context for accurate translation, here it's just a placeholder), a second connecting rod that rotates synchronously with the second拨动杆 (again, placeholder), and an intermediate rod connected to the first and second connecting rods. The two ends of the intermediate rod are respectively rotationally connected to the first and second connecting rods. When the spur gear 58 drives the incomplete gear 510, the first拨动杆 (59) can rotate. The rotation of the first拨动杆 (59) can drive the second拨动杆 (512) to rotate through the four-bar mechanism 511. The four-bar mechanism 511 is used to control the orientation of the first floating rod 69 and the second拨动杆 (512), so as to adjust the synchronous swing of the first拨动杆 (59) and the second拨动杆 (512), so that the ends of the first拨动杆 (59) and the second拨动杆 (512) point to the guide groove 54, and the guide post 56 at the end of the guide rod 55 is introduced into the inside of the guide groove 54.

[0038] Please refer to Figure 3 and Figure 4 As shown in the figure, the guide groove 54 includes a first guide groove 541, a second guide groove 542, and a third guide groove 543. The first guide groove 541, the second guide groove 542, and the third guide groove 543 are arranged in a "个" shape. The first guide groove 541, the second guide groove 542, and the third guide groove 543 can respectively orient the adjustment head 51 and the tripod plate 53 downward, in the middle, and upward. The first拨动杆 (59) and the second拨动杆 (512) are arranged in an "八" shape. The guide post 56 at the end of the guide rod 55 enters the specified guide groove 54 along the gap between the first拨动杆 (59) and the second拨动杆 (512). The end of the adjustment head 51 is rotationally connected to the end of the inner telescopic frame 4, and the axis of the rotation center of the end of the tripod plate 53 is aligned with the axis of the fixed shaft 52, so as to orient the adjustment head 51 and the tripod plate 53 upward, in the middle, and downward. The coal gangue on the conveyor belt 3 can be conveyed to the specified position, so that the coal gangue fills the coal mining subsidence area.

[0039] Please refer to Figure 5 As shown in the figure, the tips of both the first拨动杆 (59) and the second拨动杆 (512) point to the first guide groove 541. The guide post 56 at the end of the guide rod 55 is slidably connected to the inside of the first guide groove 541, and the end of the adjustment head 51 is arranged obliquely upward. The guide post 56 at the end of the guide rod 55 is inserted into the first guide groove 541, so that the adjustment head 51 and the tripod plate 53 rotate around the fixed shaft 52, so as to tilt the adjustment head 51 and the tripod plate 53 upward. At this time, the coal gangue on the conveyor belt 3 is conveyed to the upper position of the coal mining goaf.

[0040] Please refer to Figure 6As shown, the tips of the toggle rod 1 59 and the toggle rod 2 512 are both pointing toward the guide groove 2 542, the guide column 56 at the end of the guide rod 55 is slidably connected to the inside of the guide groove 2 542, and the end of the adjustment head 51 is horizontally arranged, and the guide column 56 at the end of the guide rod 55 is inserted into the guide groove 2 542, so that the adjustment head 51 and the tripod 53 are rotated around the fixed axis 52, thereby moving the adjustment head 51 and the tripod 53 in the horizontal direction. At this time, the coal gangue located on the conveyor belt 3 is transported to the center of the coal mine goaf.

[0041] See also Figure 7 As shown, the tips of the toggle rod 1 59 and the toggle rod 2 512 are both pointing toward the guide groove 3 543, the guide column 56 at the end of the guide rod 55 is slidably connected to the inside of the guide groove 3 543, and the end of the adjustment head 51 is arranged obliquely downward, and the guide column 56 at the end of the guide rod 55 is inserted into the guide groove 3 543, so that the adjustment head 51 and the tripod 53 rotate around the fixed axis 52, thereby tilting the adjustment head 51 and the tripod 53 downward. At this time, the coal gangue on the conveyor belt 3 is transported to the lower position of the coal mine goaf.

[0042] It should be noted that the components of the telescopic belt conveyor include a conveyor body 1, an external fixed frame 2, a conveyor belt 3 and an internal telescopic frame 4. The internal telescopic frame 4 is telescoped along the inside of the external fixed frame 2, so that the internal telescopic frame 4 is extended to a specified position, and the adjustment head 51 can be extended while the internal telescopic frame 4 is extended. During this period, the guide column 56 at the end of the guide rod 55 cooperates with the inside of the guide groove 54 to adjust the angle of the adjustment head 51 and the conveyor body 1. Specifically, the driving motor 57 is used to drive the spur gear 58 to rotate, and the spur gear 58 is meshed with the incomplete gear 510 of the toggle rod 1 59. The toggle rod 1 59 rotates synchronously with the incomplete gear 510. At this time, the toggle rod 1 59 drives the toggle rod 2 512 to rotate through the four-bar mechanism 511, so that the toggle rod 1 59 is moved by the double rocker mechanism. The guide column 56 rotates differently from the toggle rod 512, so that the guide column 56 enters the designated guide groove 54 along the gap between the toggle rod 1 59 and the toggle rod 2 512. When the guide column 56 enters the guide groove 1 541, the adjustment head 51 and the tripod 53 can be lifted upward, and the coal gangue on the conveyor belt 3 is transported to the upper position of the coal mine goaf. When the guide column 56 enters the guide groove 2 542, the adjustment head 51 and the tripod 53 can be moved horizontally, and the coal gangue on the conveyor belt 3 is transported to the center position of the coal mine goaf. When the guide column 56 enters the guide groove 3 543, the adjustment head 51 and the tripod 53 can be tilted downward, and the coal gangue on the conveyor belt 3 is transported to the lower position of the coal mine goaf. The angles of the adjustment head 51 and the tripod 53 can be adjusted by using the guide column 56 located in different guide grooves 54.

[0043] See also Figure 2 and Figure 8 As shown, a crushing structure 6 is provided at the end of the inner telescopic frame 4, and the crushing structure 6 includes two connecting plates 61, which are respectively provided at both sides of the end of the inner telescopic frame 4, and the two connecting plates 61 are integrally manufactured with the inner telescopic frame 4. A rotating shaft 62 is provided between the top and bottom ends of the two connecting plates 61, and the connecting plates 61 can clamp the two rotating shafts 62 and the rotating cylinder 63. The rotating shaft 62 at the top of the connecting plate 61 is provided with a rotating cylinder 63, and a circle of fixing strips is welded in the middle of the rotating cylinder 63. 64, a row of crushing teeth 65 are welded on the edge of each fixing bar 64, and the annularly arranged fixing bars 64 are in contact with the conveyor belt 3. The fixing bars 64 are in contact with the conveyor belt 3 so that each fixing bar 64 rotates around the rotating shaft 62 at the upper end, and coal gangue can pass through the gap of each fixing bar 64. The fixing bars 64 can also limit the upper surface of the conveyor belt 3, thereby avoiding the conveyor belt 3 from being separated from the adjustment head 51 and the inner telescopic frame 4 after the angle of the adjustment head 51 and the tripod 53 is adjusted.

[0044] See also Figure 8 and Fig. 9 As shown, the rotating shaft 62 located at the bottom end of the inner telescopic frame 4 is in contact with the lower surface of the conveyor belt 3, so that the rotating shaft 62 at the bottom end of the inner telescopic frame 4 is used to limit the lower surface of the conveyor belt 3, and the two ends of the rotating shaft 62 located at the top end of the inner telescopic frame 4 are rotatably connected to the connecting plate 61, and the rotating radius of the fixed bar 64 is equal to the distance between the conveyor belt 3 and the top rotating shaft 62, ensuring that the conveyor belt 3 is always in contact with the outside of the ring-shaped fixed bar 64, and the upper and lower surfaces of the conveyor belt 3 can be limited by the lower rotating shaft 62 and the fixed bar 64.

[0045] See also Figure 8 and Fig.10As shown, both side ends of the inner telescopic frame 4 are provided with reserved grooves 67, a fixing bar 2 66 is arranged between the two reserved grooves 67, a gap exists between the fixing bar 2 66 and the upper surface of the conveyor belt 3, floating rods 1 69 and 2 611 are welded at both ends of the fixing bar 2 66, the floating rods 1 69 and 2 611 are both located inside the reserved grooves 67, the guide groove 54 contacts the conveyor belt 3, thereby driving the fixing bar 1 64 to rotate around the rotating shaft 62, telescopic springs 610 are sleeved on the outside of the two floating rods 1 69 and on both sides of the fixing bar 2 66, the edge of the fixing bar 2 66 and located near the crushing A row of crushing grooves 68 are provided at the teeth 65, and the crushing teeth 65 and the crushing grooves 68 are used for crushing coal gangue. When the rotating fixed bar 1 64 rotates around the upper rotating shaft 62, the fixed bar 1 64 contacts the fixed bar 2 66, so that the fixed bar 1 64 and the fixed bar 2 66 are close to or away from each other, and the crushing teeth 65 of the fixed bar 1 64 and the crushing grooves 68 of the fixed bar 2 66 crush the coal gangue, and the floating floating rod 1 69 and the floating rod 2 611 are used to float along the reserved groove 67, so as to avoid the fixed bar 2 66 from breaking, and also facilitate the fixed bar 1 64 to pass through the fixed bar 2 66 smoothly.

[0046] See also Fig.10 As shown, both the floating rod 1 69 and the floating rod 2 611 are movably connected to the inside of the reserved groove 67. The length of the floating rod 1 69 and the floating rod 2 611 can limit the fixed bar 2 66 inside the reserved groove 67, so that the fixed bar 2 66 floats inside the reserved groove 67, and the crushing teeth 65 are close to or away from the crushing groove 68. The crushing teeth 65 are slidably connected to the side wall of the crushing groove 68. The crushing teeth 65 of the fixed bar 1 64 and the crushing groove 68 of the fixed bar 2 66 can crush the coal gangue on the surface of the conveyor belt 3.

[0047] It should be noted that when the guide column 56 moves along the inside of the guide groove 54, the adjustment head 51 and the tripod 53 are deflected, so that the conveyor belt 3 is separated from the adjustment head 51 and the surface of the inner telescopic frame 4. At this time, the lower surface of the conveyor belt 3 can be restricted by the rotating shaft 62 at the lower end, and the upper surface of the conveyor belt 3 can be restricted by the rotating cylinder 63 and the length. The conveyor belt 3 is in contact with the fixed bar 64, and the conveyor belt 3 drives the fixed bar 64 to rotate, so that the coal gangue passes through the gaps of each fixed bar 64 and enters the end of the adjustment head 51. During this period, The fixed bar 1 64 and the fixed bar 2 66 can be used to crush the larger coal gangue. Specifically, the coal gangue moves to the fixed bar 2 66 along with the conveyor belt 3, and the rotating fixed bar 1 64 will be close to the fixed bar 2 66. Some relatively large coal gangue will be located at the fixed bar 2 66. At this time, the rotating fixed bar 1 64 can be used to crush the coal gangue at the fixed bar 2 66, so that the larger coal gangue can be crushed, and the smaller gravel is discharged from the gap under the fixed bar 2 66, so that the smaller coal gangue is fixed to the end of the adjustment head 51 along the conveyor belt 3.

[0048] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas, comprising a conveyor body (1), an external fixed frame (2) and an internal telescopic frame (4), wherein the external fixed frame (2) is arranged at the top of the conveyor body (1), and the internal telescopic frame (4) is arranged inside the external fixed frame (2), both sides of the internal telescopic frame (4) are slidably connected to the inner wall of the external fixed frame (2), and a conveyor belt (3) is sleeved between the external fixed frame (2) and the internal telescopic frame (4), characterized in that: The end of the inner telescopic frame (4) is provided with an angle adjustment structure (5), the angle adjustment structure (5) comprises an adjustment head (51), the adjustment head (51) is arranged at the end of the inner telescopic frame (4), and a fixed shaft (52) is arranged at the intersection of the inner telescopic frame (4) and the adjustment head (51), the side wall of the adjustment head (51) is welded with a tripod (53), the inside of the tripod (53) is provided with a guide groove (54), the upper edge and lower edge of the tip of the tripod (53) are respectively provided with a toggle rod 2 (512) and a toggle rod 1 (59), the edge of the toggle rod 1 (59) is provided with an incomplete gear (510), the tip edge of the tripod (53) is provided with a drive motor (57), the drive motor (57) ) is provided with a spur gear (58) at the end thereof, the axis of the spur gear (58) is rotatably connected to the tripod (53), the spur gear (58) is meshed with an incomplete gear (510) of a toggle rod (59), the toggle rod (59) and the toggle rod (512) are connected via a four-bar mechanism (511), the toggle rod (59) and the toggle rod (512) rotate synchronously, guide rods (55) are provided at both ends of the external fixed frame (2) and located on both sides of the internal telescopic frame (4), guide posts (56) are provided at the ends of the two guide rods (55), and the guide posts (56) are located inside the guide groove (54), and the position where the guide posts (56) cooperate with the guide groove (54) is used to determine the inclination angle of the adjustment head (51).

2. The energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to claim 1 is characterized in that: The four-bar mechanism (511) constitutes a double rocker mechanism, and the four-bar mechanism (511) comprises a connecting rod 1 that rotates synchronously with the toggle rod 1 (59), a connecting rod 2 that rotates synchronously with the toggle rod 2 (512), and an intermediate rod connected to the connecting rod 1 and the connecting rod 2, and the two ends of the intermediate rod are respectively connected to the connecting rod 1 and the connecting rod 2 for rotation. The four-bar mechanism (511) is used to control the directions of the floating rod 1 (69) and the toggle rod 2 (512).

3. The energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to claim 2 is characterized in that: The guide groove (54) comprises a guide groove 1 (541), a guide groove 2 (542) and a guide groove 3 (543); the guide groove 1 (541), the guide groove 2 (542) and the guide groove 3 (543) are arranged in a "S" shape; the toggle rod 1 (59) and the toggle rod 2 (512) are arranged in an "E" shape; the end of the adjustment head (51) and the end of the inner telescopic frame (4) are rotatably connected, and the rotation center of the end of the tripod (53) is aligned with the axis of the fixed shaft (52).

4. The energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to claim 3 is characterized in that: The tips of the first toggle rod (59) and the second toggle rod (512) are both directed toward the first guide groove (541), the guide post (56) at the end of the guide rod (55) is slidably connected to the inside of the first guide groove (541), and the end of the adjustment head (51) is arranged obliquely upward.

5. The energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to claim 3 is characterized in that: The tips of the first toggle rod (59) and the second toggle rod (512) are both directed toward the second guide groove (542), the guide column (56) at the end of the guide rod (55) is slidably connected to the inside of the second guide groove (542), and the end of the adjustment head (51) is arranged horizontally.

6. The energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to claim 3 is characterized in that: The tips of the first toggle rod (59) and the second toggle rod (512) are both directed toward the third guide groove (543), the guide post (56) at the end of the guide rod (55) is slidably connected to the inside of the third guide groove (543), and the end of the adjustment head (51) is arranged obliquely downward.

7. An energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to any one of claims 1 to 6, characterized in that: A crushing structure (6) is provided at the end of the inner telescopic frame (4), and the crushing structure (6) comprises two connecting plates (61). The two connecting plates (61) are respectively provided at both sides of the end of the inner telescopic frame (4). The two connecting plates (61) are integrally manufactured with the inner telescopic frame (4). A rotating shaft (62) is provided between the top ends and between the bottom ends of the two connecting plates (61). A rotating cylinder (63) is provided at the rotating shaft (62) at the top ends of the connecting plates (61). A circle of fixing strips (64) is welded in the middle of the rotating cylinder (63). A row of crushing teeth (65) is welded on the edge of each fixing strip (64). The fixing strips (64) arranged in an annular manner are in contact with the conveyor belt (3).

8. The energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to claim 7 is characterized in that: The rotating shaft (62) at the bottom end of the inner telescopic frame (4) contacts the lower surface of the conveyor belt (3), and the two ends of the rotating shaft (62) at the top end of the inner telescopic frame (4) are rotatably connected to the connecting plate (61), and the rotation radius of the fixing bar (64) is equal to the distance between the conveyor belt (3) and the top rotating shaft (62).

9. The energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to claim 8 is characterized in that: The inner telescopic frame (4) is provided with a reserved groove (67) at both end portions of the two sides, a fixed bar 2 (66) is arranged between the two reserved grooves (67), a gap exists between the fixed bar 2 (66) and the upper surface of the conveyor belt (3), a floating rod 1 (69) and a floating rod 2 (611) are welded at both ends of the fixed bar 2 (66), the floating rod 1 (69) and the floating rod 2 (611) are both located inside the reserved groove (67), a telescopic spring (610) is sleeved outside the two floating rods 1 (69) and located on both sides of the fixed bar 2 (66), a row of crushing grooves (68) is provided at the edge of the fixed bar 2 (66) and near the crushing teeth (65), and the crushing teeth (65) and the crushing grooves (68) are used to crush coal gangue.

10. The energy-saving crushing and conveying device for filling coal gangue in coal mining subsidence areas according to claim 9, characterized in that: The first floating rod (69) and the second floating rod (611) are both movably connected to the inside of the reserved groove (67), the crushing teeth (65) and the crushing groove (68) are close to or away from each other, and the crushing teeth (65) are slidably connected to the side wall of the crushing groove (68).

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