Combined support for recycling crossheading top coal

Abstract

The invention provides a combined support for recycling crossheading top coal, and belongs to the field of coal mining. The combined support comprises a crushing support, a transportation support, a crushing device and a scraper conveyor, the crushing support and the transportation support are arranged in parallel and connected with each other, the scraper conveyor is inserted into the transportation support, the crushing device is installed on the transportation support, and the transportation support is connected with the crushing device. The end, deviating from the conveying support, of the crushing device is located above the scraper conveyor. The problem that in the prior art, time and labor are wasted and resources are wasted when coal left on the top of a crossheading is recycled is solved. The device has the technical effects that the crushing and transportation of coal can be completed in one crossheading, another crossheading is not needed, the device is very convenient and rapid, and resources are saved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, and in particular to a combined support for recovering top coal of a chute. Background Art

[0002] In my country's energy system, coal occupies a core position and has become the focus of many researchers. In order to more effectively utilize this precious non-renewable resource, continuously improve its mining efficiency and recovery rate, and minimize resource waste, predecessors have made unremitting efforts.

[0003] In the process of coal mining, two drifts are set up in the coal mine. The drift refers to the tunnels on both sides of a mining face for people and comprehensive mining equipment to enter and exit. In the existing technology, the recovery of the remaining coal on the top of the drift usually requires opening another drift, and setting coal mining equipment and coal transportation equipment in the newly opened drift to realize the recovery of the coal left on the top of the original drift, which is time-consuming, labor-intensive and wasteful of resources. Summary of the invention

[0004] The present invention provides a combined support for recovering coal on the top of a chute, so as to solve the defects of the prior art that the recovery of coal left on the top of the chute is time-consuming, labor-intensive and wasteful of resources, and realizes the crushing and transportation of coal in one chute without setting up another chute, which is very convenient, fast and saves resources.

[0005] The present invention provides a combined support for recovering top coal of a chute, comprising a crushing support, a transport support, a crushing device and a scraper conveyor. The crushing support and the transport support are arranged in parallel and connected to each other, the scraper conveyor is inserted on the transport support, the crushing device is installed on the transport support, and one end of the crushing device facing away from the transport support is located above the scraper conveyor.

[0006] According to the combined support for recovering the top coal of the chute of the present invention, the crushing of the coal is achieved through the setting of the crushing device, the recovery of the crushed coal is achieved through the setting of the scraper conveyor, and the setting of the scraper conveyor inserted on the transport support saves space utilization and realizes the transportation of the coal. The crushing device is set above the scraper conveyor, so that the crushing and transportation of the coal can be completed in one chute, and there is no need to set up another chute. It is very convenient, fast and saves resources.

[0007] In addition, the combined support for recovering top coal of the chute according to the present invention may also have the following additional technical features: In some embodiments of the present invention, the transport bracket includes a first base, a first telescopic rod, a first top shielding beam, a first middle shielding beam and a first bottom shielding beam, one end of the first telescopic rod is connected to the middle part of the first base, the other end of the first telescopic rod is connected to the first top shielding beam, the first bottom shielding beam, the first middle shielding beam and the first top shielding beam are rotatably connected in sequence from bottom to top, and the end of the first bottom shielding beam facing away from the middle shielding beam is rotatably connected to one end of the first base.

[0008] By adopting the above-mentioned embodiment, the setting of the first telescopic rod can realize the support of the first top shielding beam of the transport bracket. The setting of the first top shielding beam can support the top of the chute tunnel to avoid collapse. The coordinated setting of the first base, the first telescopic rod, the first middle shielding beam and the first bottom shielding beam can realize the support of the first top shielding beam in the form of triangular support, thereby ensuring the supporting effect of the transport bracket.

[0009] In some embodiments of the present invention, the transport bracket also includes a first rotating support rod and a second rotating support rod, one end of the first rotating support rod is rotatably connected to the first base, the other end of the first rotating support rod is slidably connected to the first middle shielding beam, one end of the second rotating support rod is rotatably connected to the first base, and the other end of the second rotating support rod is rotatably connected to the first bottom shielding beam.

[0010] By adopting the above embodiment, the provision of the first rotating support rod and the second rotating support rod can further increase the reliability of the use of the transport bracket.

[0011] In some embodiments of the present invention, the crushing support includes a second base, a second telescopic rod, a second bottom shielding beam, a second top shielding beam and a second middle shielding beam, one end of the second telescopic rod is connected to the second base, the other end of the second telescopic rod is connected to the second top shielding beam, the second bottom shielding beam, the second middle shielding beam and the second top shielding beam are rotatably connected in sequence from bottom to top, and the end of the second bottom shielding beam facing away from the second middle shielding beam is rotatably connected to one end of the second base.

[0012] By adopting the above embodiment, the setting of the second telescopic rod can realize the support of the second top shielding beam of the crushing support. The setting of the second top shielding beam can support the top of the chute tunnel to avoid collapse. The coordinated setting of the second base, the second telescopic rod, the second middle shielding beam and the second bottom shielding beam can realize the support of the second top shielding beam in the form of triangular support, thereby ensuring the supporting effect of the crushing support.

[0013] In some embodiments of the present invention, the crushing support also includes a third rotating support rod and a fourth rotating support rod, one end of the third rotating support rod is rotatably connected to the second base, the other end of the third rotating support rod is slidably connected to the second middle shielding beam, one end of the fourth rotating support rod is rotatably connected to the second base, and the other end of the fourth rotating support rod is rotatably connected to the second bottom shielding beam.

[0014] By adopting the above embodiment, the provision of the third rotating support rod and the fourth rotating support rod can further increase the reliability of the crushing support.

[0015] In some embodiments of the present invention, the crushing support also includes a sliding seat, which is parallel to the second base, one end of the crushing device is slidably connected to the sliding seat, and the other end of the crushing device extends to the top coal position after passing through the second middle shielding beam.

[0016] In some embodiments of the present invention, the crushing device includes a mechanical arm and a cutting head, a slider, a third telescopic rod and a connecting plate, the slider is slidably connected to the sliding seat, one end of the third telescopic rod is slidably connected to the slider, the other end of the third telescopic rod is rotatably connected to the middle part of the connecting plate, one end of the connecting plate is rotatably connected to the slider, one end of the mechanical arm is connected to the side of the connecting plate away from the third telescopic rod, and the other end of the mechanical arm is provided with a cutting head.

[0017] By adopting the above embodiment, the coordinated arrangement of the mechanical arm and the cutting head realizes the rapid crushing of the top coal of the chute.

[0018] In some embodiments of the present invention, the crushing device also includes a rear rotating seat and an inner support plate, one side of the inner support plate is rotatably connected to an end of the third telescopic rod facing away from the slider, and a connecting plate is provided on the other side of the inner support plate, one end of the inner support plate is rotatably connected to the rear rotating seat, and the rear rotating seat is installed at the end of the slider.

[0019] In some embodiments of the present invention, the crushing device further comprises a push rod, one end of which is connected to the end of the sliding seat, and the other end of which is connected to the sliding block.

[0020] By adopting the above embodiment, the arrangement of the push rod realizes that after the crushing is completed and the mechanical arm is retracted, the push rod drives the mechanical arm into the second middle shielding beam to realize reliable retraction of the mechanical arm.

[0021] In some embodiments of the present invention, a hopper is further included. The end of the crushing support is provided with a hopper, and the hopper is located between the scraper conveyor and the crushing device.

[0022] By adopting the above embodiment, the setting of the hopper effectively ensures the reliability of crushed coal transportation. In summary, the present application includes the following beneficial technical effects: coal is crushed by setting up a crushing device, crushed coal is recovered by setting up a scraper conveyor, and coal transportation is achieved while space utilization is saved by inserting the scraper conveyor on a transport bracket. The crushing device is set above the scraper conveyor, so that coal can be crushed and transported in one chute without setting up another chute, which is very convenient, fast and saves resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A perspective view of a combined support for recovering top coal of a chute according to some embodiments of the present invention is schematically shown.

[0024] Figure 2 A first perspective view of a combined support for recovering top coal of a chute according to some embodiments of the present invention is schematically shown without a hopper.

[0025] Figure 3 A second view schematically shows a perspective view of a combined support for recovering top coal of a chute according to some embodiments of the present invention without a hopper.

[0026] Figure 4 A first view schematically shows a perspective view of a transport support of a combined support for recovering top coal of a chute according to some embodiments of the present invention connected to a hanging plate conveyor.

[0027] Figure 5 A second view schematically shows a perspective view of a transport support of a combined support for recovering top coal of a chute according to some embodiments of the present invention connected to a hanging plate conveyor.

[0028] Figure 6 A first perspective view schematically shows a perspective view of a crushing support and a crushing device of a combined support for recovering top coal of a chute according to some embodiments of the present invention.

[0029] Figure 7 A second view schematically shows a perspective view of a crushing support and a crushing device of a combined support for recovering top coal of a chute according to some embodiments of the present invention.

[0030] Figure 8A third perspective view schematically shows a perspective view of a crushing support and a crushing device of a combined support for recovering top coal of a chute according to some embodiments of the present invention.

[0031] Fig. 9 A perspective view of a crushing device of a combined support for recovering top coal of a chute according to some embodiments of the present invention is schematically shown.

[0032] Reference numerals: 1. Crushing bracket, 101. Second base, 1011. Second side plate, 1012. Second middle plate, 1013. Second front plate, 1014. Second transition portion, 1015. Second connecting hole, 1016. Second rear plate, 102. Second telescopic rod, 103. Sliding seat, 105. Second bottom shielding beam, 106. Second top shielding beam, 107. Second middle shielding beam, 108. Fourth rotating support rod, 109. Third rotating support rod, 2. Transport bracket, 21. First base, 211. First side plate, 212. First connecting hole , 213, the first front plate, 214, the first transition part, 215, the first middle plate, 216, the first rear plate, 22, the first telescopic rod, 23, the first rotating support rod, 24, the second rotating support rod, 25, the first top shielding beam, 26, the first middle shielding beam, 27, the first rotating cylinder, 28, the first bottom shielding beam, 3, the hopper, 4, the crushing device, 41, the slider, 42, the third telescopic rod, 43, the rear rotating seat, 44, the connecting plate, 45, the mechanical arm, 46, the cutting head, 47, the push rod, 48, the inner support plate, 5, the scraper conveyor. DETAILED DESCRIPTION

[0033] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0034] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "the" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0035] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0036] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is flipped, then the element described as "below other elements or features" or "below other elements or features" will be subsequently oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be additionally oriented and rotated 90 degrees or in other directions and the spatial relative descriptors used in the text are interpreted accordingly.

[0037] like Figures 1 to 9As shown, according to an embodiment of the first aspect of the present invention, a combined support for recovering top coal in a chute is proposed, comprising a crushing support 1, a transport support 2, a crushing device 4 and a scraper conveyor 5, the crushing support 1 and the transport support 2 are arranged in parallel and connected to each other, the scraper conveyor 5 is inserted on the transport support 2, the crushing device 4 is installed on the transport support 2, and the end of the crushing device 4 facing away from the transport support 2 is located above the scraper conveyor 5.

[0038] In the above embodiment, it should be noted that there are two transport supports 2, and the two transport supports 2 are respectively arranged on both sides of the crushing support 1, the two transport supports 2 and the crushing support 1 are parallel to each other, the scraper conveyor 5 and the transport support 2 are parallel to each other and the scraper conveyor 5 passes through the transport support 2 and extends into the chute; the scraper conveyor 5 is the scraper conveyor in the prior art.

[0039] The technical effects achieved by the above embodiments are as follows: coal is crushed by the setting of the crushing device 4, crushed coal is recovered by the setting of the scraper conveyor, and the scraper conveyor 5 is inserted into the transport bracket 2 to save space while realizing coal transportation. The crushing device 4 is set above the scraper conveyor 5, so that coal can be crushed and transported in one chute without setting up another chute, which is very convenient, fast and saves resources.

[0040] Optional, such as Figures 1 to 5 As shown, the transport bracket 2 includes a first base 21, a first telescopic rod 22, a first top shielding beam 25, a first middle shielding beam 26 and a first bottom shielding beam 28. One end of the first telescopic rod 22 is connected to the middle part of the first base 21, and the other end of the first telescopic rod 22 is connected to the first top shielding beam 25. The first bottom shielding beam 28, the first middle shielding beam 26 and the first top shielding beam 25 are rotatably connected in sequence from bottom to top, and the end of the first bottom shielding beam 28 facing away from the middle shielding beam is rotatably connected to one end of the first base 21.

[0041] The transport bracket 2 also includes a first rotating support rod 23 and a second rotating support rod 24, one end of the first rotating support rod 23 is rotatably connected to the first base 21, the other end of the first rotating support rod 23 is slidably connected to the first middle shielding beam 26, one end of the second rotating support rod 24 is rotatably connected to the first base 21, and the other end of the second rotating support rod 24 is rotatably connected to the first bottom shielding beam 28.

[0042] In the above optional embodiment, it should be noted that the transport bracket 2 further includes a first rotating cylinder 27 , and the first rotating support rod 23 is rotatably connected to the first base 21 via the first rotating cylinder 27 .

[0043] The number of the first bases 21, the number of the first telescopic rods 22, the number of the first rotating support rods 23 and the number of the second rotating support rods 24 of each transport bracket 2 are all two, a scraper conveyor 5 is arranged between the two first bases 21, the first telescopic rods 22 are connected to the first bases 21 one by one, and the two sides of each first bottom shielding beam 28 are rotatably connected to the two first bases 21 through a second rotating support rod 24 respectively.

[0044] Each first base 21 includes two first side plates 211, a first front plate 213, a first transition portion 214, a first middle plate 215 and a first rear plate 216. The first front plate 213, the first transition portion 214, the first middle plate 215 and the first rear plate 216 are connected in sequence from the beginning to the end. The shape of the first middle plate 215 is a trapezoid. The two first side plates 211 are respectively arranged on both sides of the first middle plate 215 and the first rear plate 216. Each first side plate 211 is provided with a first connecting hole 212; the first telescopic rod 22 is screwed or rotatably connected or clamped to the first middle plate 215, the first rotating support rod 23 is rotatably connected to the first side plate 211, and the first rotating support rod 23 is slidably connected to the first middle shielding beam 26 in the form of a slide rail slider; the second rotating support rod 24 is rotatably connected to the first side plate 211 of the base 2; the first telescopic rod 22 is a hydraulic cylinder.

[0045] The beneficial effects of the above optional embodiments are as follows: the first top shielding beam 25 of the transport bracket 2 can be supported by the setting of the first telescopic rod 22, and the top of the chute tunnel can be supported by the setting of the first top shielding beam 25 to avoid collapse. The first top shielding beam 25 is supported in the form of a triangular support by the coordinated setting of the first base 21, the first telescopic rod 22, the first middle shielding beam 26 and the first bottom shielding beam 28, thereby ensuring the supporting effect of the transport bracket 2. A scraper conveyor 5 is set between the two first bases 21 to transport the coal crushed by the crushing device 4 to the outside; the reliability of the use of the transport bracket 2 can be further increased by the setting of the first rotating support rod 23 and the second rotating support rod 24.

[0046] Optional, such as Figures 1 to 3 and Figures 6 to 9 As shown, the crushing support 1 includes a second base 101, a second telescopic rod 102, a second bottom shielding beam 105, a second top shielding beam 106 and a second middle shielding beam 107, one end of the second telescopic rod 102 is connected to the second base 101, the other end of the second telescopic rod 102 is connected to the second top shielding beam 106, the second bottom shielding beam 105, the second middle shielding beam 107 and the second top shielding beam 106 are rotatably connected in sequence from bottom to top, and the end of the second bottom shielding beam 105 away from the second middle shielding beam 107 is rotatably connected to one end of the second base 101.

[0047] In the above optional embodiments, it should be noted that the second base 101 includes a second side panel 1011, a second middle panel 1012, a second front panel 1013, a second transition portion 1014 and a second rear panel 1016. The second front panel 1013, the second transition portion 1014, the second middle panel 1012 and the second rear panel 1016 are connected in sequence from head to tail. The second middle panel 1012 is trapezoidal in shape. The two second side panels 1011 are respectively arranged on both sides of the second middle panel 1012 and the second rear panel 1016. A second connecting hole 1015 is opened on each second side panel 1011.

[0048] The crushing support 1 also includes a third rotating support rod 109 and a fourth rotating support rod 108, one end of the third rotating support rod 109 is rotatably connected to the second base 101, the other end of the third rotating support rod 109 is slidably connected to the second middle shielding beam 107, one end of the fourth rotating support rod 108 is rotatably connected to the second base 101, and the other end of the fourth rotating support rod 108 is rotatably connected to the second bottom shielding beam 105.

[0049] The crushing support 1 also includes a sliding seat 103, which is parallel to the second base 101. One end of the crushing device 4 is slidably connected to the sliding seat 103, and the other end of the crushing device 4 passes through the second middle shielding beam 107 and extends to the top coal position.

[0050] The crushing device 4 includes a mechanical arm 45 and a cutting head 46, a slider 41, a third telescopic rod 42 and a connecting plate 44, the slider 41 is slidably connected to the sliding seat 103, one end of the third telescopic rod 42 is slidably connected to the slider 41, the other end of the third telescopic rod 42 is rotatably connected to the middle part of the connecting plate 44, one end of the connecting plate 44 is rotatably connected to the slider 41, one end of the mechanical arm 45 is connected to the side of the connecting plate 44 away from the third telescopic rod 42, and the other end of the mechanical arm 45 is provided with a cutting head 46.

[0051] The crushing device 4 also includes a rear rotating seat 43 and an inner support plate 48, one side of the inner support plate 48 is rotatably connected to an end of the third telescopic rod 42 away from the slider 41, and a connecting plate 44 is provided on the other side of the inner support plate 48, one end of the inner support plate 48 is rotatably connected to the rear rotating seat 43, and the rear rotating seat 43 is installed at the end of the slider 41.

[0052] The crushing device 4 further includes a push rod 47 , one end of which is connected to the end of the sliding seat 103 , and the other end of which is connected to the sliding block 41 .

[0053] In the above optional embodiment, it should be noted that the number of the second bases 101 is two, the sliding seat 103 is arranged between the two second bases 101, a slot is opened on the second middle shielding beam 107, and when working, the connecting plate 44 is located at the position of the slot; the mechanical arm 45 is a mechanical arm of the prior art; the second telescopic rod 10 and the third telescopic rod 42 are both hydraulic cylinders; the push rod 47 is a hydraulic push rod.

[0054] The beneficial effects of the above optional embodiments are as follows: the second top shielding beam 106 of the crushing support 1 can be supported by the arrangement of the second telescopic rod 102, and the top of the chute tunnel can be supported by the arrangement of the second top shielding beam 106 to avoid collapse; the second top shielding beam 106 can support the second top shielding beam 25 in the form of a triangle support through the coordinated arrangement of the second base 101, the second telescopic rod 10, the second middle shielding beam 107 and the second bottom shielding beam 105, thereby ensuring the supporting effect of the crushing support 1; a crushing device 4 is arranged between the two second bases 1011 to achieve reliable crushing of the top coal of the chute; the reliability of the use of the crushing support 1 can be further increased by the arrangement of the third rotating support rod 109 and the fourth rotating support rod 108; the arrangement of the push rod 47 can achieve that after the crushing is completed and the mechanical arm 45 is retracted, the push rod 47 drives the mechanical arm 45 into the second middle shielding beam 107 to achieve reliable retraction of the mechanical arm 45.

[0055] The coordinated arrangement of the mechanical arm 45 and the cutting head 46 enables rapid crushing of the top coal of the chute.

[0056] When top coal recovery is not required, the crushing support 1 and the transport support 5 can be folded for easy transportation.

[0057] Optional, such as Figure 1 As shown, it also includes a hopper 3. The end of the crushing support 1 is provided with a hopper 3, and the hopper 3 is located between the scraper conveyor 5 and the crushing device 4.

[0058] In the above optional embodiment, it should be noted that the hopper 3 is mounted on the end of the sliding seat 103 by means of screw connection or clamping.

[0059] The beneficial effect of the above optional embodiment is that the reliability of crushed coal transportation is effectively guaranteed by the provision of the hopper 3.

[0060] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A combined support for recovering top coal of a chute, characterized in that: The invention comprises a crushing support (1), a transport support (2), a crushing device (4) and a scraper conveyor (5), wherein the crushing support (1) and the transport support (2) are arranged in parallel and connected to each other, the scraper conveyor (5) is inserted into the transport support (2), the crushing device (4) is installed on the transport support (2), and the end of the crushing device (4) facing away from the transport support (2) is located above the scraper conveyor (5).

2. The combined support for recovering top coal of a chute according to claim 1, characterized in that: The transport bracket (2) comprises a first base (21), a first telescopic rod (22), a first top shielding beam (25), a first middle shielding beam (26) and a first bottom shielding beam (28); one end of the first telescopic rod (22) is connected to the middle of the first base (21); the other end of the first telescopic rod (22) is connected to the first top shielding beam (25); the first bottom shielding beam (28), the first middle shielding beam (26) and the first top shielding beam (25) are rotatably connected in sequence from bottom to top; and one end of the first bottom shielding beam (28) facing away from the middle shielding beam is rotatably connected to one end of the first base (21).

3. The combined support for recovering top coal of a chute according to claim 2, characterized in that: The transport bracket (2) further comprises a first rotating support rod (23) and a second rotating support rod (24); one end of the first rotating support rod (23) is rotatably connected to the first base (21); the other end of the first rotating support rod (23) is slidably connected to the first middle shielding beam (26); one end of the second rotating support rod (24) is rotatably connected to the first base (21); and the other end of the second rotating support rod (24) is rotatably connected to the first bottom shielding beam (28).

4. The combined support for recovering top coal of a chute according to claim 1, characterized in that: The crushing support (1) comprises a second base (101), a second telescopic rod (102), a second bottom shielding beam (105), a second top shielding beam (106) and a second middle shielding beam (107); one end of the second telescopic rod (102) is connected to the second base (101); the other end of the second telescopic rod (102) is connected to the second top shielding beam (106); the second bottom shielding beam (105), the second middle shielding beam (107) and the second top shielding beam (106) are rotatably connected in sequence from bottom to top; and one end of the second bottom shielding beam (105) facing away from the second middle shielding beam (107) is rotatably connected to one end of the second base (101).

5. The combined support for recovering top coal of a chute according to claim 4, characterized in that: The crushing support (1) further comprises a third rotating support rod (109) and a fourth rotating support rod (108); one end of the third rotating support rod (109) is rotatably connected to the second base (101); the other end of the third rotating support rod (109) is slidably connected to the second middle shielding beam (107); one end of the fourth rotating support rod (108) is rotatably connected to the second base (101); and the other end of the fourth rotating support rod (108) is rotatably connected to the second bottom shielding beam (105).

6. The combined support for recovering top coal of a chute according to claim 5, characterized in that: The crushing support (1) further comprises a sliding seat (103), wherein the sliding seat (103) and the second base (101) are parallel to each other, one end of the crushing device (4) is slidably connected to the sliding seat (103), and the other end of the crushing device (4) passes through the second middle shielding beam (107) and extends to the top coal position.

7. The combined support for recovering top coal of a chute according to claim 6, characterized in that: The crushing device (4) comprises a mechanical arm (45) and a cutting head (46), a slider (41), a third telescopic rod (42) and a connecting plate (44), wherein the slider (41) is slidably connected to the sliding seat (103), one end of the third telescopic rod (42) is slidably connected to the slider (41), the other end of the third telescopic rod (42) is rotatably connected to the middle part of the connecting plate (44), one end of the connecting plate (44) is rotatably connected to the slider (41), one end of the mechanical arm (45) is connected to a side of the connecting plate (44) away from the third telescopic rod (42), and the cutting head (46) is arranged at the other end of the mechanical arm (45).

8. The combined support for recovering top coal of a chute according to claim 7, characterized in that: The crushing device (4) further comprises a rear rotating seat (43) and an inner support plate (48), one side of the inner support plate (48) being rotatably connected to an end of the third telescopic rod (42) away from the slider (41), the other side of the inner support plate (48) being provided with the connecting plate (44), one end of the inner support plate (48) being rotatably connected to the rear rotating seat (43), and the rear rotating seat (43) being mounted on the end of the slider (41).

9. The combined support for recovering top coal of a chute according to claim 7, characterized in that: The crushing device (4) further comprises a push rod (47), one end of the push rod (47) being connected to the end of the sliding seat (103), and the other end of the push rod (47) being connected to the sliding block (41).

10. The combined support for recovering top coal of a chute according to any one of claims 1 to 9, characterized in that: It also comprises a material hopper (3), the material hopper (3) being arranged at the end of the crushing support (1), and the material hopper (3) being located between the scraper conveyor (5) and the crushing device (4).

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