Discharging system rotary belt conveyor and manufacturing method thereof

Abstract

The invention provides a rotary belt conveyor of an unloading system and a manufacturing method of the rotary belt conveyor. The manufacturing method comprises the steps that the upper hinged support assembly and the lower hinged support assembly are prefabricated, and machining allowance is reserved for the upper hinged support assembly and the lower hinged support assembly; the upper hinged support assembly and the lower hinged support assembly are marked, a hinged support allowance machining line is obtained, and the upper hinged support assembly and the lower hinged support assembly are machined according to the hinged support allowance machining line; the upper hinged support assembly and the lower hinged support assembly are assembled according to assembly requirements to form a center supporting device; a rack is manufactured, and machining allowance is reserved for the rack; scribing is conducted on the rack, a rack allowance machining line is obtained, and the rack is machined according to the rack allowance machining line; manufacturing a hanging bracket and a rotating track, and reserving machining allowance for the rotating track; the rotating rail is installed on a hanging bracket, the rotating rail is marked, a rail allowance machining line is obtained, and the rotating rail is machined according to the rail allowance machining line; and assembling a center supporting device, a rack, a hanging bracket and a rotating track.

Description

Technical Field

[0001] The invention relates to a ship unloader, and in particular to a rotary belt conveyor of an unloading system and a manufacturing method thereof. Background Art

[0002] Ship unloaders, i.e. the unloading system of the wharf, are heavy-duty port machinery and equipment specially used to unload cargo from ships. They include belt conveyors and corresponding belt conveyor corridors. The corridor is a narrow passage for placing belt conveyors. In order to increase the capacity of ship unloaders, many existing ship unloaders are equipped with multiple belt conveyor corridors to meet the operational requirements of multiple ship unloaders at the wharf to unload transport ships at different berths at the same time. This requires that the ship unloader needs to be designed with a rotating belt conveyor to meet the simultaneous operation requirements of different berths at the wharf.

[0003] However, the manufacturing and installation process of the rotary belt conveyor is relatively complicated, with high manufacturing precision and assembly requirements, and there are certain technical difficulties. The level of early manufacturing precision control will directly affect the running quality of each component after assembly. If the deviation is large, it will cause quality problems such as rail gnawing and inability to rotate. Summary of the invention

[0004] The object of the present invention is to provide a rotary belt conveyor for a discharge system and a manufacturing method thereof, which can optimize the manufacturing accuracy.

[0005] One aspect of the present invention provides a manufacturing method for a rotating belt conveyor of a discharging system, the manufacturing method comprising: prefabricating an upper hinge assembly and a lower hinge assembly, reserving processing allowances for the upper hinge assembly and the lower hinge assembly; marking the upper hinge assembly and the lower hinge assembly to obtain hinge allowance processing lines, and processing the upper hinge assembly and the lower hinge assembly according to the hinge allowance processing lines; assembling the upper hinge assembly and the lower hinge assembly according to assembly requirements to form a center support device; manufacturing a frame, reserving processing allowances for the frame; marking the frame to obtain frame allowance processing lines, and processing the frame according to the frame allowance processing lines; manufacturing a hanger and a rotating track, reserving processing allowances for the rotating track; installing the rotating track to the hanger, marking the rotating track to obtain track allowance processing lines, and processing the rotating track according to the track allowance processing lines; assembling the center support device, the frame, the hanger, and the rotating track.

[0006] In one embodiment, the prefabricated upper hinge seat assembly and the lower hinge seat assembly reserve processing allowance for the upper hinge seat assembly and the lower hinge seat assembly, including: making a first upper hinge seat component and a first lower hinge seat component, and reserving processing allowance in the thickness direction for the first lower hinge seat component; making a second upper hinge seat component and a second lower hinge seat component, drilling circular holes on the second upper hinge seat component and the second lower hinge seat component respectively, and reserving processing allowance for the circular holes. Process the stepped end face of the second upper hinge seat component and the stepped end face of the second lower hinge seat component, and reserve end face margin; segment the outer cylindrical surface of the second upper hinge seat component and the outer cylindrical surface of the second lower hinge seat component, and process the end face margin; make a third upper hinge seat component, a third lower hinge seat component and a fourth lower hinge seat component; assemble the first upper hinge seat component, the second upper hinge seat component and the third upper hinge seat component to prefabricate an upper hinge seat assembly, and assemble the first lower hinge seat component, the second lower hinge seat component, the third lower hinge seat component and the fourth lower hinge seat component to prefabricate a lower hinge seat assembly.

[0007] In one embodiment, the upper hinge assembly and the lower hinge assembly are marked to obtain hinge allowance processing lines, and the upper hinge assembly and the lower hinge assembly are processed according to the hinge allowance processing lines, including: processing a pad according to the clearance requirements of the upper hinge assembly and the lower hinge assembly; pre-connecting the upper hinge assembly and the lower hinge assembly through the pad and process support to form a hinge assembly; marking the hinge assembly to obtain the inner hole allowance of the hinge assembly and the bottom surface allowance processing line of the first lower hinge assembly, and making corresponding sample punching marks, and processing the bottom surface allowance processing line estimated according to the inner hole allowance; making a center support member and a lower support member, drilling and punching the first lower hinge assembly and the center support member, and then drilling the center support member and the lower support member.

[0008] In one embodiment, assembling the upper hinge seat assembly and the lower hinge seat assembly according to assembly requirements to form a center support device includes: removing the process support and the pad; assembling the upper hinge seat assembly, the lower hinge seat assembly, the center support member, the lower support member and the hinge shaft according to assembly requirements to form a center support device.

[0009] In one embodiment, the manufacturing of the frame and reserving a processing allowance for the frame include: manufacturing the frame and reserving a processing allowance in a thickness direction for a driving roller flange and a redirecting roller flange on the frame; marking the frame to obtain a frame allowance processing line, and processing the frame according to the frame allowance processing line, including: marking a center line of a frame center support device and a cross center line of the frame on the frame; marking roller group bolt hole positions, rotation drive device bolt hole positions, a processing allowance line of the driving roller flange, and a processing allowance line of the redirecting roller flange on the frame according to the center line of the frame center support device and the cross center line of the frame, and making corresponding sample punching marks; processing the frame according to the corresponding sample punching marks.

[0010] In one embodiment, the manufacturing of the hanger and the rotating track and reserving a processing allowance for the rotating track include: reserving a processing allowance in length, width and thickness for the material used to manufacture the rotating track; processing the material according to the width processing allowance; and rolling the material into a circle to form the rotating track.

[0011] In one embodiment, the step of installing the rotating track to the hanger, marking the rotating track to obtain a track margin processing line, and processing the rotating track according to the track margin processing line includes: marking the hanger as a whole to mark the hanger cross center line and the hanger center support device center line; marking the track installation position on the hanger according to the hanger cross center line and the hanger center support device center line, and making corresponding sample punching marks; installing the rotating track to the hanger according to the corresponding sample punching marks;

[0012] In one embodiment, after the rotating track is installed on the hanger according to the corresponding sample punch mark, it also includes: after re-measuring the turning radius of each part of the rotating track and finding it qualified, using a clamping plate to fix it firmly, and welding the weld between the rotating track and the hanger.

[0013] In one embodiment, the rotating track is installed on the hanger, the rotating track is marked to obtain a track allowance processing line, and the rotating track is processed according to the track allowance processing line, and the method further includes: adjusting the overall level of the hanger and the rotating track, and marking the plane allowance processing line of the rotating track according to the cross center line of the hanger; transporting the hanger and the rotating track to the assembly site, adjusting the overall level, and processing the plane allowance of the rotating track according to the plane allowance processing line of the rotating track.

[0014] Another aspect of the present invention provides a rotary belt conveyor for a discharge system, which is manufactured by the manufacturing method for a rotary belt conveyor for a discharge system according to any one of the above embodiments.

[0015] The manufacturing method of the rotary belt conveyor of the unloading system of the present invention optimizes the manufacturing precision control by setting the margin and marking process requirements in the manufacturing process of each component, meets the assembly and installation precision requirements, improves the efficiency of field installation, reduces rework caused by assembly errors, improves work efficiency, and shortens the assembly cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0017] Figure 1 It is a structural diagram of the unloading system;

[0018] Figure 2 yes Figure 1 A side view of the discharge system is shown;

[0019] Figure 3 yes Figure 1 Schematic diagram of the middle AA section;

[0020] Figure 4 is a schematic diagram of a rotating belt conveyor;

[0021] Figure 5 It is a schematic flow chart of an embodiment of a method for manufacturing a rotary belt conveyor of a discharging system according to the present invention;

[0022] Figure 6 is a schematic diagram of the central support device;

[0023] Figure 7 yes Figure 6 A schematic diagram of an upper hinge assembly and a lower hinge assembly of a central support device shown;

[0024] Figure 8 It is a line drawing diagram of the rack;

[0025] Fig. 9 It is a line drawing diagram of the hanger and the rotating track. DETAILED DESCRIPTION

[0026] Figures 1 to 3The structure of the bridge grab ship unloader of the dock is shown. The ship unloader is a heavy-duty port mechanical equipment specially used to unload cargo from ships, which includes a belt conveyor and a corresponding belt conveyor corridor 30. The corridor 30 is a narrow passage for arranging the belt conveyor. In order to improve the production capacity of the ship unloader, many existing ship unloaders are equipped with multiple belt conveyor corridors 30 to meet the operational requirements of multiple ship unloaders at the dock to unload transport ships at different berths at the same time. This requires that the ship unloader needs to be designed with a rotating belt conveyor to meet the simultaneous operation requirements of different berths at the dock.

[0027] like Figures 1 to 3 As shown, the unloading system includes a rotating belt conveyor 100 (i.e., a rotating belt conveyor) and other components 40. The rotating belt conveyor 100 is connected to the door frame structure 11 through a hanger 20 and operates above the hanger 20. The hanger 20 is welded to the connecting beam 12 of the door frame structure 11 to support the rotating belt conveyor 100.

[0028] Figure 4 The structure of the rotating belt conveyor 100 is shown. Figure 2 As shown, the rotating belt conveyor 100 includes a frame 101, a central supporting device 102, a rotating driving device 103, a rotating track 104, a head hopper 105, a roller group 106, a driving roller 107, a feeding belt 108, a redirecting roller 109, a receiving trough 110 and a tensioning device 111 and other components.

[0029] Among them, the frame 101 is the basic support structure, which provides a location for installation and fixing of other components. The rotating track 104 provides a guide for the rotation of the frame 101. The central support device 102 is a support part that supports the rotation of the frame 101, and its central axis is the central axis of the rotation of the frame 101. The rotating drive device 103 provides power for the rotation of the frame 101. The head hopper 105 is used to receive the materials unloaded from the grab bucket of the ship unloader and distribute the materials to the conveyor belt 108. The conveyor belt 108, as a material carrying and conveying medium, conveys the materials from one position to another through its own circular motion. The roller group 106 is used to support the conveyor belt 108 and the materials thereon. The driving roller 107 drives the conveyor belt 108 to run. The redirecting roller 109 is used to change the running direction of the conveyor belt 108. The receiving trough 110 is used to receive the materials unloaded from the conveyor belt 108, and plays the role of collecting and transporting materials. The tensioning device 111 is used to adjust the tension of the conveyor belt 108 .

[0030] However, the manufacturing and installation process of the rotating belt conveyor is relatively complicated, and the manufacturing precision and assembly requirements are high, and there are certain technical difficulties in manufacturing.

[0031] Reference will now be made in detail to embodiments of the present invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided to explain the present invention, not to limit the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature illustrated or described as part of one embodiment may be used together with another embodiment to produce yet another embodiment. Therefore, the present invention is intended to cover these modifications and variations within the scope of the appended claims and their equivalents.

[0032] Figure 5 The manufacturing method of the unloading system rotating belt conveyor 100 of the present invention is shown. Figure 5 As shown, the manufacturing method of the unloading system rotating belt conveyor 100 of the present invention includes steps S100 to S800:

[0033] In step S100 , the upper hinge assembly 120 and the lower hinge assembly 130 are prefabricated, and machining allowances are reserved for the upper hinge assembly 120 and the lower hinge assembly 130 .

[0034] In step S200, the upper hinge seat assembly 120 and the lower hinge seat assembly 130 are scribed to obtain hinge seat surplus processing lines, and the upper hinge seat assembly 120 and the lower hinge seat assembly 130 are processed according to the hinge seat surplus processing lines.

[0035] In step S300 , the upper hinge assembly 120 and the lower hinge assembly 130 are assembled according to assembly requirements to form the central support device 102 .

[0036] In step S400 , the frame 101 is manufactured, and a machining allowance is reserved for the frame 101 .

[0037] In step S500 , the frame 101 is marked to obtain a residual processing line of the frame 101 , and the frame 101 is processed according to the residual processing line of the frame 101 .

[0038] In step S600 , the hanger 20 and the rotating rail 104 are manufactured, and a machining allowance is reserved for the rotating rail 104 .

[0039] In step S700 , the rotating rail 104 is mounted on the hanger 20 , the rotating rail 104 is marked to obtain a rail margin processing line, and the rotating rail 104 is processed according to the rail margin processing line.

[0040] In step S800 , the central support device 102 , the frame 101 , the hanger 20 , and the rotating rail 104 are assembled.

[0041] The manufacturing method of the unloading system rotating belt conveyor 100 of the present invention optimizes the manufacturing precision control by setting the margin and marking process requirements in the manufacturing process of each component, meets the assembly and installation precision requirements, improves the efficiency of field installation, reduces rework caused by assembly errors, improves work efficiency, and shortens the assembly cycle.

[0042] Figure 6 and Figure 7 The structure of the center support device 102 is shown. As an important component of the rotating belt conveyor 100, the center support device 102 has high assembly accuracy, which plays an important role in whether the rotating belt conveyor can complete the rotating operation after assembly. The center support device 102 is mainly composed of an upper hinge assembly 120, a lower hinge assembly 130, a center support member 141, a lower support member 142 and a hinge shaft 143.

[0043] Combination Figure 6 and Figure 7 In one embodiment, step S100 further includes the following steps:

[0044] The first upper hinge seat 121 and the first lower hinge seat 131 are manufactured, and a machining allowance in the thickness direction is reserved for the first lower hinge seat 131 to ensure the manufacturing and assembly accuracy of the lower hinge seat assembly 130 and the center support device 102. The reserved machining allowance refers to the intentional retention of a material layer that exceeds the final design size on a critical dimension during the rough machining or semi-finishing stage of the part. These allowances need to be removed by cutting, grinding and other processes in the subsequent finishing stage to achieve the final accuracy requirements, which can avoid the scrapping of parts due to material deformation, assembly errors or measurement deviations, and essentially provide a fault tolerance space for the manufacturing process.

[0045] The second upper hinge seat 122 and the second lower hinge seat 132 are manufactured. The raw materials of the second upper hinge seat 122 and the second lower hinge seat 132 are both round steel.

[0046] Drill round holes on the second upper hinge seat 122 and the second lower hinge seat 132, respectively, and reserve machining allowance for the round holes. Specifically, drill a round hole in the center direction of the round steel of the second upper hinge seat 122 and the second lower hinge seat 132 to facilitate subsequent boring operations. When drilling, at least 20 mm machining allowance must be reserved on one side of the inner hole.

[0047] The stepped end surface of the second upper hinge seat member 122 and the stepped end surface of the second lower hinge seat member 132 are processed, and end surface margins are reserved.

[0048] The outer circumferential surface of the second upper hinge seat 122 and the outer circumferential surface of the second lower hinge seat 132 are segmented, and the end face margins after segmentation are directly processed in place to reduce the difficulty of later processing and improve manufacturing efficiency.

[0049] The third upper hinge component 123 , the third lower hinge component 133 and the fourth lower hinge component 134 are manufactured.

[0050] The first upper hinge component 121, the second upper hinge component 122 and the third upper hinge component 123 are assembled to prefabricate the upper hinge component 120, and the first lower hinge component 131, the second lower hinge component 132, the third lower hinge component 133 and the fourth lower hinge component 134 are assembled to prefabricate the lower hinge component 130.

[0051] In one embodiment, step S200 further includes the following steps:

[0052] The backing plate 52 is processed according to the clearance requirements of the upper hinge seat assembly 120 and the lower hinge seat assembly 130 .

[0053] The upper hinge assembly 120 and the lower hinge assembly are pre-connected by the backing plate 52 and the process support 51 to form a hinge assembly. Figure 7 shown.

[0054] The hinge assembly is sent to the metalworking workshop for overall marking to obtain the inner hole allowance of the hinge assembly and the bottom surface allowance processing line of the first lower hinge assembly 131, and corresponding sample punching marks are made, and the bottom surface allowance processing line is estimated according to the inner hole allowance for processing.

[0055] Make the center support member 141 and the lower support member 142, drill and punch the first lower hinge seat member 131 and the center support member 141, and then drill the center support member 141 and the lower support member 142 to improve the installation accuracy and avoid the misalignment of the bolt holes during field installation.

[0056] In one embodiment, step S300 further includes the following steps:

[0057] The process support 51 and the backing plate 52 are removed.

[0058] The upper hinge seat assembly 120 , the lower hinge seat assembly 130 , the central support member 141 , the lower support member 142 and the hinge shaft 143 are assembled according to the assembly requirements to form the central support device 102 , that is, the manufacture of the central support device 102 is completed.

[0059] By controlling the precision during the manufacturing process of the center support device 102, its assembly precision can be improved, and the rotating operation of the rotating belt conveyor 100 can be realized after assembly.

[0060] Figure 8The structure and line drawing schematic diagram of the frame 101 of the rotating belt conveyor 100 are shown. The frame 101 is a mounting carrier for components such as the driving roller 107, the rotating driving device 103, the central supporting device 102, and the roller device. In order to ensure the assembly requirements when installing the auxiliary device, the frame 101 needs to be manufactured by adopting measures such as pre-setting the processing allowance, setting the line drawing reference, and overall processing to achieve the field installation precision control requirements.

[0061] refer to Figure 8 In one embodiment, step S400 further includes the following steps:

[0062] The frame 101 is manufactured, and a processing allowance in the thickness direction is reserved for the driving roller flange 152 and the redirecting roller flange 151 on the frame 101, such as Figure 8 shown.

[0063] Step S500 further includes the following steps:

[0064] The center line A of the center support device of the frame and the cross center line B of the frame are drawn on the frame 101 .

[0065] According to the center line A of the frame center support device and the cross center line B of the frame, the position of the cross center line B of the frame, the position of the bolt hole 154 of the rotating drive device, the machining allowance line of the driving roller flange 152 and the machining allowance line of the redirecting roller flange 151 are marked on the frame 101, and corresponding sample punching marks are made.

[0066] According to the corresponding sample punching marks, the frame 101 is processed, that is, the bolt holes and the plane allowances are processed as a whole.

[0067] Fig. 9 The structure and line diagram of the hanger 20 of the rotating belt conveyor 100 are shown. The hanger 20 is the installation carrier of the rotating belt conveyor 100 and the rotating track 104, and is also the operation carrier after the rotating belt conveyor 100 is installed. The manufacturing accuracy of the hanger 20 directly affects the operating quality of the entire rotating system. In order to ensure the assembly accuracy, it needs to be manufactured and controlled according to the following process requirements.

[0068] In one embodiment, step S600 further includes the following steps:

[0069] A processing allowance is reserved for the length, width and thickness of the material used to make the rotating track 104 .

[0070] The material is processed according to the width processing allowance, and the allowance in the thickness direction is not processed for the time being.

[0071] The material is rolled into a rotating track 104 according to the required size.

[0072] In one embodiment, step S700 further includes the following steps:

[0073] The hanger 20 is marked as a whole, and the hanger cross center line C and the hanger center support device center line D are marked.

[0074] According to the cross center line C of the hanger and the center line D of the hanger center support device, mark the rail installation position on the hanger 20 and make corresponding sample punch marks, such as Fig. 9 shown.

[0075] The rotating rail 104 is mounted to the hanger 20 according to the corresponding sample punch mark.

[0076] After the turning radius of each part of the rotating track 104 is re-measured and qualified, a clamping plate is used to fix it firmly, and the weld between the rotating track 104 and the hanger 20 is welded.

[0077] Adjust the overall level of the hanger 20 and the rotating track 104, and draw the plane margin processing line of the rotating track 104 according to the cross center line C of the hanger.

[0078] The hanger 20 and the rotating rail 104 are transported to the assembly site, the overall level is adjusted, and the plane margin of the rotating rail 104 is processed according to the plane margin processing line of the rotating rail 104.

[0079] The unloading system rotating belt conveyor 100 of the present invention is manufactured by the manufacturing method of the unloading system rotating belt conveyor as described in any one of the above embodiments.

[0080] In terms of promotion and application, the manufacturing method of the present invention has been completed in multiple projects and the subsequent assembly has been successfully completed, achieving the expected effect. Through the optimization of manufacturing precision control, the efficiency of field assembly has been improved, the rework caused by assembly errors has been reduced, the work efficiency has been improved, the assembly cycle has been shortened, and the average cycle saving is about 2 days.

[0081] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A method for manufacturing a rotary belt conveyor of a discharging system, characterized in that: The manufacturing method comprises: Prefabricate an upper hinge assembly and a lower hinge assembly, and reserve machining allowances for the upper hinge assembly and the lower hinge assembly; Marking the upper hinge assembly and the lower hinge assembly to obtain a hinge margin processing line, and processing the upper hinge assembly and the lower hinge assembly according to the hinge margin processing line; Assemble the upper hinge assembly and the lower hinge assembly according to assembly requirements to form a central support device; Manufacturing a frame, and reserving a processing allowance for the frame; Marking the frame to obtain a frame surplus processing line, and processing the frame according to the frame surplus processing line; Manufacturing a hanger and a rotating track, and reserving a processing allowance for the rotating track; The rotating track is mounted on the hanger, the rotating track is marked to obtain a track margin processing line, and the rotating track is processed according to the track margin processing line; Assemble the central support device, the frame, the hanger and the rotating track.

2. The manufacturing method according to claim 1, characterized in that The prefabricated upper hinge seat assembly and the lower hinge seat assembly, with machining allowance reserved for the upper hinge seat assembly and the lower hinge seat assembly, include: Manufacturing a first upper hinge seat component and a first lower hinge seat component, and reserving a machining allowance in a thickness direction for the first lower hinge seat component; Making a second upper hinge seat and a second lower hinge seat, respectively drilling round holes on the second upper hinge seat and the second lower hinge seat, and reserving a processing allowance for the round holes; Processing the stepped end surface of the second upper hinge seat member and the stepped end surface of the second lower hinge seat member, and reserving end surface margins; The outer circular surface of the second upper hinge seat member and the outer circular surface of the second lower hinge seat member are segmented, and the end surface margins are processed; Making a third upper hinge seat, a third lower hinge seat and a fourth lower hinge seat; The first upper hinge seat component, the second upper hinge seat component and the third upper hinge seat component are assembled to prefabricate an upper hinge seat assembly, and the first lower hinge seat component, the second lower hinge seat component, the third lower hinge seat component and the fourth lower hinge seat component are assembled to prefabricate a lower hinge seat assembly.

3. The manufacturing method according to claim 2, characterized in that: The step of marking the upper hinge seat assembly and the lower hinge seat assembly to obtain a hinge seat margin processing line, and processing the upper hinge seat assembly and the lower hinge seat assembly according to the hinge seat margin processing line includes: Processing a backing plate according to the clearance requirements between the upper hinge seat assembly and the lower hinge seat assembly; Pre-connecting the upper hinge assembly and the lower hinge assembly through the backing plate and the process support to form a hinge assembly; Marking the hinge assembly to obtain the inner hole allowance of the hinge assembly and the bottom surface allowance processing line of the first lower hinge assembly, and making corresponding sample punching marks, and processing the bottom surface allowance processing line according to the inner hole allowance; A central support member and a lower support member are manufactured, the first lower hinge seat member and the central support member are drilled and punched, and then the central support member and the lower support member are drilled.

4. The manufacturing method according to claim 3, characterized in that: The upper hinge assembly and the lower hinge assembly are assembled according to the assembly requirements to form a central support device, including: Removing the process support and the pad; The upper hinge seat assembly, the lower hinge seat assembly, the center support member, the lower support member and the hinge shaft are assembled according to assembly requirements to form a center support device.

5. The manufacturing method according to any one of claims 1 to 4, characterized in that: The manufacturing of the frame and reserving a processing allowance for the frame include: Manufacturing a frame, and reserving a machining allowance in a thickness direction for a driving roller flange and a redirecting roller flange on the frame; Marking the frame to obtain a frame margin processing line, and processing the frame according to the frame margin processing line, comprises: Marking the center line of the frame center support device and the cross center line of the frame on the frame; According to the center line of the center support device of the frame and the cross center line of the frame, the positions of the bolt holes of the roller assembly, the positions of the bolt holes of the rotary drive device, the machining allowance line of the flange of the driving roller and the machining allowance line of the flange of the redirecting roller are marked on the frame, and corresponding sample punching marks are made; The frame is processed according to the corresponding sample punch mark.

6. The manufacturing method according to claim 5, characterized in that: The manufacturing of the hanger and the rotating track and reserving a processing allowance for the rotating track include: Reserve machining allowances in length, width and thickness for the material used to make the rotating track; machining the material according to a width machining allowance; The material is rolled into a circle to form the rotating track.

7. The manufacturing method according to claim 6, characterized in that: The step of installing the rotating track to the hanger, marking the rotating track to obtain a track margin processing line, and processing the rotating track according to the track margin processing line includes: Marking the hanger as a whole, marking the hanger cross center line and the hanger center support device center line; According to the cross center line of the hanger and the center line of the center support device of the hanger, mark the rail installation position on the hanger and make corresponding sample punch marks; According to the corresponding sample punch mark, the rotating track is installed to the hanger.

8. The manufacturing method according to claim 7, characterized in that: After the rotating track is installed on the hanger according to the corresponding sample punch mark, the method further includes: After the turning radius of each part of the rotating track is re-measured and qualified, a clamping plate is used to fix it firmly, and the weld between the rotating track and the hanger is welded.

9. The manufacturing method according to claim 8, characterized in that: The step of installing the rotating track to the hanger, marking the rotating track to obtain a track margin processing line, and processing the rotating track according to the track margin processing line further includes: Adjust the overall level of the hanger and the rotating track, and draw a plane margin processing line of the rotating track according to the cross center line of the hanger; The hanger and the rotating track are transported to the assembly site, the overall level is adjusted, and the plane allowance of the rotating track is processed according to the plane allowance processing line of the rotating track.

10. A rotary belt conveyor for a discharging system, characterized in that: The rotary belt conveyor of the unloading system is manufactured by the manufacturing method of any one of claims 1 to 9.

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