Temporary protection operation rack for coal unloading and loading

Abstract

The utility model discloses a temporary protection operation rack for coal unloading and loading, and relates to the field of coal mine unloading and loading safety protection. At present, when an existing unloading and loading person unloads and loads coal, the foot sole of the unloading and loading person is prone to sliding when the unloading and loading person stands on an inclined plate, and the body is prone to losing the gravity center and then falling into a concave groove. The temporary protection operation rack for coal unloading and loading comprises a table plate, an adjusting plate assembly, a fixed support, a cushion block, a limiting bolt, a table plate hanging rod, a detachable inserting plate and a limiting column, the end of the table plate is rotationally connected with the head end of the adjusting plate assembly through a first rotating shaft, and the tail end of the adjusting plate assembly is rotationally connected with the fixed support through a second rotating shaft; the angle of the platen is adjusted by rotating the adjusting plate assembly, the bottom of the fixed support is connected with the cushion block, and the fixed support and the cushion block are of an integrated structure. And the safety of unloading and loading personnel during unloading and loading of the coal on the table plate on the temporary protection operation table for unloading and loading of the coal in the whole coal unloading and loading process is guaranteed. The device is used in the field of coal mine safety.

Description

Technical Field

[0001] The utility model relates to the field of coal safety protection, in particular to a temporary protection operating platform for coal unloading. Background Art

[0002] Coal self-unloading vessels are typically equipped with special unloading equipment that efficiently unloads the coal directly onto designated docks or barges. The advantages of coal self-unloading vessels are that they significantly improve unloading efficiency, reduce reliance on dock loading and unloading equipment, shorten vessel stays in port, and reduce transportation costs. Coal is primarily transported by a conveyor belt at the bottom of the vessel. The vessel features a unique cargo hold structure with a row of grooves at the bottom of the hopper-shaped hold, within which a longitudinal conveyor belt is installed. The conveyor feeds a hopper truck, which delivers the coal directly into the hopper. Unloading requires manual assistance. Two unloaders stand on either side of the conveyor belt, one in front and one behind. The worker in front holds a long hook. As the conveyor belt rotates, the coal slowly flows down. The hook then decouples the wooden planks from the grooves, freeing the coal from the bottom support. The worker in the back is responsible for picking up the decoupled planks.

[0003] However, due to the special cargo hold structure of the dump ship, when unloading coal materials, the workers stand on the inclined plates on both sides of the bucket-shaped bin with their legs in an inverted V shape. Since the load capacity of the dump ship is at least 1,000 tons, the workers need to always support their legs on the inclined plates on both sides of the bin during the entire coal unloading process. Standing for a long time causes physical fatigue to the unloaders. At the same time, when the unloaders use the above method to unload coal, there is some unloaded coal powder or coal slag on the inclined plate surface. The unloaders are prone to slipping when standing on the inclined plate, causing the body to lose balance and fall into the conveyor belt. There are certain safety hazards in the entire unloading process. Utility Model Content

[0004] The utility model aims to solve the safety problem that when unloading coal, unloaders are prone to slipping when standing on the inclined board, causing their bodies to lose their center of gravity and fall into the ditch. Therefore, a temporary protective operating platform for unloading coal is provided.

[0005] The technical solution of the utility model is:

[0006] A temporary protective operating platform for coal unloading and loading, comprising a platform, an adjustment plate assembly, a fixed support, a pad, a limiting bolt, a platform hanging rod, a detachable plug plate and a limiting column. The platform comprises two left and right platform plates, and the left and right platform plates are connected by two parallel platform hanging rods. The end of the platform plate is rotatably connected to the head end of the adjustment plate assembly via a first rotating shaft, and the tail end of the adjustment plate assembly is rotatably connected to the fixed support via a second rotating shaft. The angle of the platform plate is adjusted by rotating the adjustment plate assembly. The bottom of the fixed support is vertically connected to the pad, and the fixed support and the pad are an integrated structure.

[0007] A limit bolt is installed on the adjusting plate assembly. The limit bolt is screwed into the hexagonal nut of the adjusting plate assembly through a threaded structure. The end of the limit bolt rests on the upper end surface of the pad, so that the adjusting plate assembly and the pad are in a parallel structure.

[0008] A rectangular hole is provided on the vertical plate surface at the inner end of the table, and the table hanging rod is inserted into the rectangular hole. A detachable plug-in plate is installed above the two table hanging rods, and the top end surface of the detachable plug-in plate is connected to the table.

[0009] The top end surface of the table is on the same horizontal plane, the bottom of the detachable plug-in plate is perpendicular to the limit column and is integrally connected, a group of limit columns and the table hanging rods are arranged in a cross shape, and the limit columns are inserted between the two table hanging rods.

[0010] Preferably, the adjustment plate assembly includes a side rotating plate, a segment shaft, a hexagonal nut, a rolling bearing, and a rib plate;

[0011] The two side rotating plates are vertically connected by two rib plates. The inner side of each side rotating plate is fixedly connected to the outer ring surface of the rolling bearing. The inner ring surface of the rolling bearing is fixedly connected to the axial surface of the segment shaft, so that the segment shaft can rotate through the rolling bearing. The end of the segment shaft is fixedly connected to the flat surface of the hexagonal nut. When the segment shaft rotates, the hexagonal nut is driven to rotate at the same time.

[0012] Preferably, a first axial hole and a second axial hole are respectively opened on the side surface of the side rotating plate, and the axis centers of the first axial hole and the second axial hole are on the same horizontal line;

[0013] After the first shaft hole is aligned with the mounting hole on the table, the table and the adjustment plate assembly are rotatably connected via the first rotating shaft;

[0014] After the second shaft hole is aligned with the shaft hole on the fixed support, the fixed support and the adjustment plate assembly are rotationally connected via the second rotating shaft.

[0015] Preferably, the table hanging rod is a square tube structure, and both ends of the table hanging rod are threaded column structures. A locking nut is screwed into the bolt column on each side. By setting the locking nut, the table hanging rod is prevented from falling off the table.

[0016] Preferably, the top of the table top and the top of the detachable inserting plate have anti-slip protrusion structures.

[0017] Preferably, the pads are arranged on the inclined plates on both sides of the bucket-shaped bin, and the pads and the inclined plates on both sides of the bucket-shaped bin are in a parallel structure, and the table plate is supported by the pads.

[0018] Preferably, there are grooves below the inclined plates on both sides of the bucket-shaped bin, and conveyor belts are installed in the grooves.

[0019] Preferably, a group of wooden boards with a spliced ​​structure are installed on the plane above the groove, and a conveyor belt is located directly below the wooden boards.

[0020] Preferably, a transverse tension beam with a π-shaped structure is installed between the inclined plates on both sides of the bucket-shaped bin.

[0021] Compared with the prior art, the present invention has the following effects:

[0022] The utility model can prevent the workers from standing on the inclined plates on both sides of the bucket bin for a long time during the entire coal unloading process by arranging a temporary protective operating table for coal unloading. By arranging the temporary protective operating table for coal unloading, the unloading workers can stand on the table to complete the unloading work. At the same time, the safety of the unloading workers when unloading coal on the table on the temporary protective operating table for coal unloading is also guaranteed.

[0023] When the utility model is unloading coal, the pads on the two temporary protective operating tables for coal unloading are supported on both sides of the inclined plates on both sides of the bucket-shaped bin, and the two temporary protective operating tables for coal unloading are in parallel structure, wherein the unloading personnel in the front pull up the wooden board above the groove with the long hook in their hands, and after the wooden board is pulled up, the coal in the upper area falls onto the conveyor belt in the groove, and the coal is conveyed by the conveyor belt. After the coal there falls, the unloading personnel in the front pull open the second wooden board, and the pulled open wooden board will fall onto the conveyor belt in the groove, and the unloading personnel standing on the temporary protective operating table for coal unloading at the rear will collect the wooden boards that have fallen on the conveyor belt.

[0024] The table of the utility model is connected to the fixed support through an adjusting plate assembly. By setting the adjusting plate assembly, the end of the table can be rotated between the end of the adjusting plate assembly, and the other end of the adjusting plate assembly can be rotated between the fixed support. When the fixed support rotates, the pad on the fixed support is driven to rotate, so that it is suitable for different angles between the inclined plates on both sides of the bucket-shaped bin and has a wide range of uses.

[0025] The utility model provides a hexagonal nut on the adjusting plate assembly. When the limiting bolt is screwed into the hexagonal nut, the bottom of the limiting bolt is pressed against the plane of the pad, thereby preventing the adjusting plate assembly on the temporary protective operating table for coal unloading from rotating when the temporary protective operating table for coal unloading is used, thereby limiting the adjusting plate assembly.

[0026] The two table boards of the utility model are connected by a table board hanging rod, and the table board hanging rod can pass through the rectangular insertion hole on the table board. When the length of the table board needs to be increased, the limit column on the detachable plug-in plate can be inserted between the two table board hanging rods. The limit column plays a limiting role. When the limit plug-in column under the detachable plug-in plate is inserted between the two table board hanging rods, the stability of each detachable plug-in plate is guaranteed. The detachable plug-in plate is supported by the two table board hanging rods, and the overall length of the table board can be increased according to different needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model when it is installed on the inclined plates on both sides of the bucket-shaped bin.

[0028] Figure 2 This is a top view of the utility model when it is installed on the inclined plates on both sides of the bucket-shaped bin.

[0029] Figure 3 It is a structural diagram of the temporary protective operating platform for coal unloading.

[0030] Figure 4 yes Figure 3 Top view of .

[0031] Figure 5 yes Figure 1 A partial enlarged view of part A.

[0032] Figure 6 It is a structural diagram of the adjustment plate assembly.

[0033] Figure 7 It is a cross-sectional view of the temporary protective operating platform for coal unloading.

[0034] Figure 8 It is a cross-sectional view of the table top.

[0035] Figure 9 It is a connection diagram of the table hanging rod and the detachable plug-in board.

[0036] 1. Tabletop, 2. Adjustment plate assembly, 3. Fixed support, 4. Spacer, 5. Limit bolt, 6. Tabletop hanging rod, 7. Removable plug-in plate, 8. Limit column, 9. Rectangular socket, 10. Mounting hole, 11. Locking nut, 12. Inclined plates on both sides of the bucket bin, 13. Groove, 14. Conveyor belt, 15. Wooden board, 16. Horizontal tension beam, 17. Coal, 2-1. Side turning plate, 2-2. Segment shaft, 2-3. Hexagonal nut, 2-4. Rolling bearing, 2-5. Rib plate, 2-6. First shaft hole, 2-7. Second shaft hole. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0038] Specific implementation method 1: Combination Figure 1 — Figure 4 Describe this embodiment. This embodiment is a temporary protective operating platform for coal unloading, including a platform 1, an adjusting plate assembly 2, a fixed support 3, a pad 4, a limiting bolt 5, a platform hanging rod 6, a detachable plug plate 7 and a limiting column 8. The platform 1 includes two left and right platform plates 1, and the left and right platform plates 1 are connected by two platform hanging rods 6 with parallel structures. The end of the platform 1 is rotatably connected to the head end of the adjusting plate assembly 2 through a first rotating shaft, and the tail end of the adjusting plate assembly 2 is rotatably connected to the fixed support 3 through a second rotating shaft. The angle of the platform 1 is adjusted by rotating the adjusting plate assembly 2. The bottom of the fixed support 3 is vertically connected to the pad 4, and the fixed support 3 and the pad 4 are an integrated structure.

[0039] The platform 1 is a metal plate structure, and the cross section of the platform 1 is an L-shaped structure, and the longitudinal section of the platform 1 is a U-shaped structure. The platform 1 mainly plays a supporting role for the unloading and loading personnel.

[0040] The pad 4 is made of rubber and is integrated with the fixed support 3. The pad 4 and the fixed support 3 are bonded together by vulcanized rubber and metal. The pad 4 and the inclined plates 12 on both sides of the hopper silo act as a friction, ensuring the stability of the temporary protective operating platform for coal unloading and loading.

[0041] A limit bolt 5 is installed on the adjustment plate assembly 2. The limit bolt 5 is screwed into the hexagonal nut of the adjustment plate assembly 2 through a threaded structure. The end of the limit bolt 5 rests on the upper end surface of the cushion block 4, so that the adjustment plate assembly 2 and the cushion block 4 are in a parallel structure.

[0042] A rectangular socket 9 is provided on the vertical plate surface at the inner end of the table top 1, and the table top hanging rod 6 is inserted into the rectangular socket 9. A detachable plug-in plate 7 is installed above the two table top hanging rods 6. The top end surface of the detachable plug-in plate 7 is on the same horizontal plane as the top end surface of the table top 1. The bottom of the detachable plug-in plate 7 is perpendicular to and integrally connected to the limiting column 8. A group of limiting columns 8 and the table top hanging rods 6 are arranged in a cross shape, and the limiting columns 8 are inserted between the two table top hanging rods 6.

[0043] Specific implementation method 2: Combination Figure 6 This embodiment describes a temporary protective operating platform for coal unloading. The adjusting plate assembly 2 includes a side rotating plate 2-1, a segment shaft 2-2, a hexagonal nut 2-3, a rolling bearing 2-4, and a rib plate 2-5.

[0044] The two side rotating plates 2-1 are vertically connected by two rib plates 2-5. The inner side of each side rotating plate 2-1 is fixedly connected to the outer ring surface of the rolling bearing 2-4. The inner ring surface of the rolling bearing 2-4 is fixedly connected to the axial surface of the segment shaft 2-2, so that the segment shaft 2-2 rotates through the rolling bearing 2-4. The end of the segment shaft 2-2 is fixedly connected to the plane of the hexagonal nut 2-3. When the segment shaft 2-2 rotates, it drives the hexagonal nut 2-3 to rotate at the same time.

[0045] The side turning plate 2-1 is a rectangular plate structure, and both ends of the rib plate 2-5 are fixedly connected to the inner side of the side turning plate 2-1 by welding. The two side turning plates 2-1 are fixedly connected as a whole by the two rib plates 2-5.

[0046] The two segment shafts 2-2 have the same structure, and one end of the segment shaft 2-2 is fixedly connected to the inner ring surface of the rolling bearing 2-4 by welding, and the other end of the segment shaft 2-2 is connected to the flat surface of the hexagonal nut by welding.

[0047] The angles of the cooperation between the adjusting plate assembly 2, the table 1 and the fixed support 3 are adjusted, so that the temporary protective operating platform for coal unloading can be adapted to different angles between the inclined plates on both sides of the bucket bin.

[0048] Specific implementation method three: Combination Figure 6 This embodiment describes a temporary protective operating platform for coal unloading. A first axial hole 2-6 and a second axial hole 2-7 are respectively opened on the side of the side rotating plate 2-1, and the axis of the first axial hole 2-6 and the second axial hole 2-7 are on the same horizontal line.

[0049] After the first shaft hole 2-6 is aligned with the mounting hole 10 on the table 1, the table 1 and the adjustment plate assembly 2 are rotatably connected through the first rotating shaft;

[0050] After the second shaft hole 2 - 7 is aligned with the shaft hole on the fixed support 3 , the fixed support 3 and the adjustment plate assembly 2 are rotationally connected via the second rotating shaft.

[0051] The aperture of the first axial hole 2-6 is larger than that of the second axial hole 2-7, wherein the first rotating shaft is inserted into the first axial hole 2-6, and the second rotating shaft is inserted into the second axial hole 2-7. The first rotating shaft and the second rotating shaft are specifically a hinged structure, wherein the shaft body can adopt a pin shaft structure.

[0052] Specific implementation method four: Combination Figure 7 — Figure 9 The present embodiment is described as a temporary protective operating platform for coal unloading. The platform hanging rod 6 is a square tube structure, and both ends of the platform hanging rod 6 are threaded column structures. A locking nut 11 is screwed into the bolt column on each side. By setting the locking nut 11, the platform hanging rod 6 is prevented from falling off the platform 1.

[0053] The gear of the table hanging rod 6 is slightly smaller than the aperture of the rectangular insertion hole 10 on the table 1, so that the table hanging rod 6 can smoothly pass through the rectangular insertion hole 10 on the table 1.

[0054] The table top hanging rod 6 and the rectangular socket 10 are rectangular metal structures. By setting the table top hanging rod 6 and the rectangular socket 10 into a rectangular structure, the table top hanging rod 6 can be prevented from rotating when being inserted into the rectangular socket 10.

[0055] Specific implementation method five: Combination Figure 3 — Figure 5 The present embodiment is described as follows. In the present embodiment, a temporary protective operating platform for unloading coal is provided. The top of the platform 1 and the top of the detachable inserting plate 7 have anti-slip protrusion structures.

[0056] The top of the detachable plug plate 7 and the table 1 are on the same horizontal plane, wherein the detachable plug plate 7 is an independent plug plate structure. By processing a protruding structure on the detachable plug plate 7 and the table 1, the friction of the unloading personnel on the table 1 and the detachable plug plate 7 can be increased.

[0057] Specific implementation method six: combination Figure 5 This embodiment describes a temporary protective operating platform for coal unloading, wherein the pads 4 are arranged on the inclined plates 12 on both sides of the bucket-shaped bin, and the pads 4 and the inclined plates 12 on both sides of the bucket-shaped bin are in a parallel structure.

[0058] The platform 1 is supported by the pads 4, which mainly increase the friction with the inclined plates on both sides of the bucket-shaped bin, thereby increasing the stability of the temporary protective operating platform for coal unloading.

[0059] Specific implementation method seven: combination Figure 1 、 Figure 2The present embodiment is described as a temporary protective operating platform for unloading coal. A groove 13 is provided below the inclined plates 12 on both sides of the bucket-shaped bin, and a conveyor belt 14 is installed in the groove 13 .

[0060] The cross section of the groove 13 is a U-shaped structure, in which a group of wooden boards 15 are installed on the top of the groove, and the conveyor belt 14 is installed at the bottom of the groove. When the coal on the inclined plates 12 on both sides of the bucket-shaped bin falls into the groove 13, the coal is transported through the conveyor belt 14 in the groove 13.

[0061] Specific implementation method eight: combination Figure 1 、 Figure 2 The present embodiment is described as a temporary protective operating platform for coal unloading. A set of wooden boards 15 with a spliced ​​structure are installed on the plane above the groove 13, and a conveyor belt 14 is located directly below the wooden boards 15.

[0062] A group of wooden boards 15 have the same structure. The groove 13 is covered by the group of wooden boards 15 , and the bottom of the coal is supported by the template to prevent the coal from falling into the groove 13 .

[0063] Specific implementation method nine: Combination Figure 1 — Figure 9 The present embodiment is described as follows. In the present embodiment, a temporary protective operating platform for unloading coal is provided, wherein a transverse tension beam 16 with a π-shaped structure is installed between the inclined plates 12 on both sides of the bucket-shaped bin.

[0064] The transverse tension beam consists of a transverse beam and two longitudinal beams, wherein the tops of the two longitudinal beams are vertically connected to the transverse beams, and the bottoms of the longitudinal beams are welded and fixedly connected to the inclined surfaces of the inclined plates 12 on both sides of the bucket-shaped bin by welding. By setting the transverse tension beam 16, the inclined plates 12 on both sides of the bucket-shaped bin can be reinforced.

[0065] When unloading coal, the pads 4 on at least two temporary protective operating platforms for unloading coal are supported on both sides of the inclined plates 12 on both sides of the bucket-shaped bin, and the two temporary protective operating platforms for unloading coal are in parallel structure. The unloading personnel in the front use the long hook in their hands to pull up the wooden board 15 above the groove 13. After the wooden board 15 is pulled up, the coal in the upper area falls onto the conveyor belt 14 in the groove 13, and the coal is transported by the conveyor belt. After the coal falls there, the unloading personnel in the front pull open the second wooden board 15, and the pulled wooden board 15 will fall onto the conveyor belt 14 in the groove 13. The unloading personnel standing on the temporary protective operating platform for unloading coal at the rear collect the wooden boards that fall on the conveyor belt, and then cover the groove 13 after the coal unloading is completed. Similarly, the unloading personnel standing in the front use the long groove in their hands to send the coal stacked on the inclined plates on both sides of the bucket-shaped bin onto the conveyor belt. By setting up a temporary protective operating table for coal unloading, workers can be prevented from standing on the inclined plates on both sides of the bucket bin for a long time during the entire coal unloading process, which may cause physical fatigue. At the same time, the safety of unloading workers is ensured when unloading coal on the table on the temporary protective operating table for coal unloading.

[0066] The table 1 is connected to the fixed support 3 through the adjustment plate assembly 2. By setting the adjustment plate assembly 2, the end of the table 1 can be rotated with the end of the adjustment plate assembly 2, and the other end of the adjustment plate assembly 2 can be rotated with the fixed support 3. When the fixed support 3 rotates, the pad 4 on the fixed support 3 is driven to rotate, thereby being suitable for different angles between the inclined plates on both sides of the bucket-shaped bin and having a wide range of uses;

[0067] By setting the hexagonal nut 2-3 on the adjusting plate assembly, when the limiting bolt 5 is screwed into the hexagonal nut 2-3, the bottom of the limiting bolt 5 is pressed against the plane of the pad 4, preventing the adjusting plate assembly on the temporary protective operating table for coal unloading from rotating when the temporary protective operating table for coal unloading is used, thereby limiting the adjusting plate assembly.

[0068] The two table tops 1 are connected by a table top hanging rod. The table top hanging rod 6 can pass through the rectangular socket 9 on the table top 1. When the length of the table top needs to be increased, the limit column 8 on the detachable plug-in plate 7 can be inserted between the two table top hanging rods 6. The limit column 8 plays a limiting role. When the limit column 8 under the detachable plug-in plate 7 is inserted between the two table top hanging rods 6, the stability of each detachable plug-in plate 7 is ensured. The detachable plug-in plate 7 is supported by the two table top hanging rods 6, and the overall length of the table top 1 can be increased according to different needs.

[0069] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement of the above embodiments made according to the technical essence of the present invention, within the spirit and principles of the present invention, without departing from the content of the technical solution of the present invention, shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A temporary protective operating platform for coal unloading, characterized in that: It includes a table (1), an adjustment plate assembly (2), a fixed support (3), a pad (4), a limit bolt (5), a table hanging rod (6), a detachable insert (7) and a limit column (8). The table (1) comprises two left and right table plates (1), and the left and right table plates (1) are connected by two table plate hanging rods (6) in a parallel structure. The end of the table plate (1) is rotatably connected to the head end of the adjustment plate assembly (2) via a first rotating shaft, and the tail end of the adjustment plate assembly (2) is rotatably connected to the fixed support (3) via a second rotating shaft. The angle of the table plate (1) is adjusted by rotating the adjustment plate assembly (2). The bottom of the fixed support (3) is vertically connected to the cushion block (4), and the fixed support (3) and the cushion block (4) are an integrated structure. A limiting bolt (5) is installed on the adjusting plate assembly (2), and the limiting bolt (5) is screwed into the hexagonal nut of the adjusting plate assembly (2) through a threaded structure. The end of the limiting bolt (5) abuts against the upper end surface of the cushion block (4), so that the adjusting plate assembly (2) and the cushion block (4) are in a parallel structure. A rectangular insertion hole (9) is provided on the vertical plate surface at the inner end of the table (1), and the table hanging rod (6) is inserted into the rectangular insertion hole (9). A detachable inserting plate (7) is installed above the two table hanging rods (6), and the top end surface of the detachable inserting plate (7) is in contact with the table. The top end surfaces of the table top (1) are on the same horizontal plane, the bottom of the detachable insert plate (7) is vertically and integrally connected to the limiting column (8), a group of limiting columns (8) and the table top hanging rods (6) are arranged in a cross pattern, and the limiting columns (8) are inserted between the two table top hanging rods (6).

2. A temporary protective operating platform for coal unloading according to claim 1, characterized in that: The regulating plate assembly (2) comprises a side rotating plate (2-1), a segmented shaft (2-2), a hexagonal nut (2-3), a rolling bearing (2-4), and a rib plate (2-5); The two side rotating plates (2-1) are vertically connected via two rib plates (2-5); the inner side of each side rotating plate (2-1) is fixedly connected to the outer ring surface of the rolling bearing (2-4); the inner ring surface of the rolling bearing (2-4) is fixedly connected to the axial surface of the segment shaft (2-2); the segment shaft (2-2) is rotated via the rolling bearing (2-4); the end of the segment shaft (2-2) is fixedly connected to the plane of the hexagonal nut (2-3); and when the segment shaft (2-2) rotates, the hexagonal nut (2-3) is driven to rotate simultaneously.

3. A temporary protective operating platform for coal unloading according to claim 2, characterized in that: A first axial hole (2-6) and a second axial hole (2-7) are respectively provided on the side surface of the side rotating plate (2-1), and the axis centers of the first axial hole (2-6) and the second axial hole (2-7) are on the same horizontal line; After the first shaft hole (2-6) is aligned with the mounting hole (10) on the table (1), the table (1) and the adjustment plate assembly (2) are rotatably connected via the first rotating shaft; After the second shaft hole (2-7) is aligned with the shaft hole on the fixed support (3), the fixed support (3) and the adjustment plate assembly (2) are rotationally connected via the second rotating shaft.

4. A temporary protective operating platform for coal unloading according to claim 1, characterized in that: The table plate hanging rod (6) is a square tube structure, and both ends of the table plate hanging rod (6) are threaded column structures. A locking nut (11) is screwed into the bolt column on each side. By setting the locking nut (11), the table plate hanging rod (6) is prevented from falling off the table plate (1).

5. A temporary protective operating platform for coal unloading according to claim 1, characterized in that: The top of the table top (1) and the top of the detachable inserting plate (7) have anti-slip protrusion structures.

6. A temporary protective operating platform for coal unloading according to claim 1, characterized in that: The pads (4) are arranged on the inclined plates (12) on both sides of the bucket-shaped bin, and the pads (4) and the inclined plates (12) on both sides of the bucket-shaped bin are in a parallel structure. The tabletop (1) is supported by a pad (4).

7. A temporary protective operating platform for coal unloading according to claim 6, characterized in that: There are grooves (13) below the inclined plates (12) on both sides of the bucket-shaped bin, and conveyor belts (14) are installed in the grooves (13).

8. A temporary protective operating platform for coal unloading according to claim 7, characterized in that: A set of wooden boards (15) with a spliced ​​structure is installed on the plane above the groove (13), and a conveyor belt (14) is located just below the wooden boards (15).

9. A temporary protective operating platform for coal unloading according to claim 7, characterized in that: A transverse tension beam (16) with a π-shaped structure is installed between the inclined plates (12) on both sides of the bucket-shaped bin.

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