Nuclear power plant tunnel machine material conveying device

Abstract

The application discloses a nuclear power plant tunnel machine material conveying device, which comprises a transmission shaft, a spiral blade and a driving unit. The transmission shaft extends along the flow direction of the material. The spiral blade is arranged on the outer circumferential surface of the transmission shaft along the extension direction of the transmission shaft. The driving unit comprises a driving gear, a driven gear and a driving motor. The driving gear is perpendicularly engaged with the driven gear. The driving gear is coaxially connected with the output end of the driving motor. The driven gear is coaxially connected with the transmission shaft. The driving motor is arranged perpendicularly to the extension direction of the spiral blade, that is, perpendicularly to the flow direction of the material, by using the perpendicularly engaged driving gear and driven gear to realize the angular transmission. The axial load borne by the driving motor is greatly reduced, so that the energy consumption is reduced and the transmission efficiency is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of submarine water intake tunnel cleaning, and particularly relates to a nuclear power plant tunnel machine material conveying device. BACKGROUND

[0002] After long-term use, a large number of marine organisms grow on the inner wall of a submarine water intake tunnel (hereinafter referred to as a tunnel) used by a nuclear power plant. Too many marine organisms can reduce the water intake area of the tunnel, thereby having a significant impact on the water intake capacity of the tunnel. Therefore, the marine organisms in the tunnel need to be cleaned regularly.

[0003] One of the ways to clean the marine organisms in the tunnel is to use a large cleaning device to move along the extension direction of the tunnel, so as to peel off the marine organisms from the inner wall, and then use a conveying device to convey the accumulated material to the rear. In this way, as the large cleaning device advances, the marine organisms on the inner wall of the tunnel can be continuously peeled off and collected, and the cleaning efficiency is relatively high.

[0004] The accumulated marine organisms are dense and belong to viscous materials, so that the conveying device directly receives a large resistance caused by the flow of the material during the advancement of the large cleaning device.

[0005] The output end of the driving motor of the existing spiral conveying structure is on the same axis as the extension direction of the spiral blade. If the extension direction of the spiral blade is arranged along the flow direction of the material, the driving motor will receive a very large axial load due to the influence of the resistance of the material flow, resulting in a large energy consumption and a low transmission efficiency. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a nuclear power plant tunnel machine material conveying device.

[0007] The technical solution adopted by the present application to solve the technical problem is: a nuclear power plant tunnel machine material conveying device, comprising a transmission shaft, a spiral blade, and a driving unit.

[0008] The transmission shaft extends along the flow direction of the material.

[0009] The spiral blade is arranged on the outer circumferential surface of the transmission shaft along the extension direction of the transmission shaft.

[0010] The driving unit comprises a driving gear, a driven gear, and a driving motor.

[0011] The driving gear is perpendicularly engaged with the driven gear. The driving gear is coaxially connected with the output end of the driving motor. The driven gear is coaxially connected with the transmission shaft.

[0012] Preferably, the driving unit further comprises a gear box, a first sealing support assembly, and a second sealing support assembly; surfaces perpendicular to each other of the gear box are respectively provided with a first through hole and a second through hole;

[0013] The driving gear and the driven gear are located in the gear box.

[0014] The output end of the driving motor is sealingly connected with the hole wall of the first through hole through the first sealing support assembly and is drivingly connected with the driving gear.

[0015] The transmission shaft is sealingly connected with the hole wall of the second through hole through the second sealing support assembly and is drivingly connected with the driven gear.

[0016] Preferably, the first sealing support assembly comprises a first end cover and a first bearing.

[0017] The outer circumferential surface of the first end cover is sealingly connected with the hole wall of the first through hole; the first bearing is connected between the first end cover and the driving gear; and the driving gear is sleeved on the output end of the driving motor.

[0018] Preferably, the first sealing support assembly further comprises a first bearing limiting piece connected between the first end cover and the first bearing.

[0019] Preferably, the second sealing support assembly comprises a second end cover and a second bearing.

[0020] The outer circumferential surface of the second end cover is sealingly connected with the hole wall of the second through hole; the second bearing is connected between the second end cover and the transmission shaft; and the driven gear is sleeved on the outer circumferential surface of the transmission shaft.

[0021] Preferably, the second sealing support assembly further comprises a second bearing limiting piece connected between the second end cover and the second bearing.

[0022] Preferably, the transmission shaft comprises a main shaft and a hollow cylindrical shaft which are axially connected.

[0023] The helical blade is arranged on the outer circumferential surface of the cylindrical shaft along the extension direction of the cylindrical shaft.

[0024] The main shaft penetrates the gear box and comprises a first part accommodated in the gear box and drivingly connected with the driven gear and a second part extending out of the gear box.

[0025] The cylindrical shaft is detachably connected with the second part of the main shaft.

[0026] Preferably, the nuclear power plant tunnel machine material conveying device further comprises a bulging sleeve.

[0027] The end of the cylindrical shaft away from the main shaft is a closed end; the end of the cylindrical shaft close to the main shaft is provided with a through hole for the main shaft to extend into; the inner wall of the cylindrical shaft is provided with an annular fixing part;

[0028] The second part of the main shaft extends into the cylindrical shaft from the through hole and is detachably connected with the annular fixing part through the bulging sleeve.

[0029] Preferably, the cylindrical shaft is provided with an operation hole at a position corresponding to the annular fixing part on the circumferential surface, and the nuclear power plant tunnel machine material conveying device further comprises a mounting cover matched with the operation hole.

[0030] Preferably, the main shaft comprises two second parts; the cylindrical shaft comprises a first part and a second part on the same axis;

[0031] One of the second parts of the main shaft is axially connected with the first part of the cylindrical shaft; the other second part of the main shaft is axially connected with the second part of the cylindrical shaft.

[0032] Preferably, the nuclear power plant tunnel machine material conveying device further comprises at least two mounting plates; the two mounting plates are respectively detachably connected with two opposite parallel surfaces of the gear box.

[0033] Preferably, when the mounting plate is mounted on the gear box, the plate thickness direction of the mounting plate is perpendicular to the flow direction of the material.

[0034] Preferably, the nuclear power plant tunnel machine material conveying device further comprises a motor shield; the gear box comprises a first surface where the first through hole is located, and a second surface which is arranged in parallel on the opposite side of the first surface;

[0035] The two mounting plates are respectively a first mounting plate and a second mounting plate;

[0036] The first mounting plate is provided with a motor avoiding hole through which the driving motor passes; the first mounting plate is detachably connected with the first surface of the gear box; the motor shield is detachably connected with the first mounting plate and wraps the part of the driving motor outside the gear box.

[0037] The second mounting plate is detachably connected with the second surface of the gear box.

[0038] Preferably, the transmission shaft is rotatable in two opposite directions.

[0039] The present application has at least the following beneficial effects: the active gear and the driven gear are vertically engaged to realize the rotation angle transmission, the driving motor is arranged perpendicularly to the extension direction of the spiral blade, i.e. perpendicularly to the flow direction of the material, the axial load on the driving motor is greatly reduced, thus the energy consumption is reduced and the transmission efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0040] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0041] Figure 1 is an overall structure explosion schematic diagram of the nuclear power plant tunnel machine material conveying device according to an embodiment of the present application;

[0042] Figure 2 is a longitudinal sectional view schematic diagram of the nuclear power plant tunnel machine material conveying device of Figure 1 after assembly;

[0043] Figure 3 is an explosion schematic diagram of the driving unit of the nuclear power plant tunnel machine material conveying device according to an embodiment of the present application;

[0044] Figure 4 is a longitudinal sectional view schematic diagram of the driving unit of Figure 3 after assembly;

[0045] Figure 5 is a schematic diagram of the nuclear power plant tunnel machine material conveying device according to an embodiment of the present application in a working state. DETAILED DESCRIPTION

[0046] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings.

[0047] In the following description, the terms "first" and "second" are only for the convenience of describing the technical solutions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include one or more features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] As described in the background, one of the ways to clean the marine organisms in the tunnel is to use a large cleaning device to move along the extension direction of the tunnel in the tunnel to strip the marine organisms from the inner wall completely, and the stripped marine organisms are aggregated to form accumulated materials, and then the conveying device is used to centrally convey the materials to the rear. In this way, as the large cleaning device advances, the marine organisms on the inner wall of the tunnel can be continuously stripped and collected, and the cleaning efficiency is relatively high.

[0049] The concept of the present application is to design the conveying device: there is a chain drive conveying scheme with a scraper in the prior art, but its structure is complex, and there are gaps between the transmission chain structure and the scraper, which are easy to fall into sundries and cause blockage. And the energy consumption of chain drive is large, and the transmission efficiency is low. Compared with the chain drive conveying scheme with a scraper, the spiral conveying structure uses spiral blades to guide the flow direction of the material flow, and its structure is simpler, and there are no gaps where sundries are easy to fall into, so the structural characteristics of the spiral blade naturally have the advantage of preventing foreign matter blockage, and it can be understood that theoretically the transmission efficiency of shaft transmission is higher than that of any other transmission form. But the inventor found that the conventional spiral conveying structure has the following technical defects: the output end of the driving motor is on the same axis as the extension direction of the spiral blade. If applied to a large cleaning device, the extension direction of the spiral blade needs to be set to be consistent with the flow direction of the material, in order to achieve better conveying efficiency. But with the movement of the large cleaning device, affected by the resistance of the material flow, the output end of the driving motor is subjected to a very large axial load, resulting in a large energy consumption and low transmission efficiency. Therefore, for the spiral conveying structure, the present application creatively proposes an improved scheme of arranging the driving motor 30 on the side perpendicular to the extension direction of the spiral blade 2, so that the axial direction of the driving motor 30 is no longer consistent with the flow direction of the material, but perpendicular to the flow direction of the material, greatly reducing the axial load on itself, to solve the problems of energy consumption and transmission efficiency, and at the same time, the structural advantage of the spiral blade 2 not being easy to cause sundry blockage can be fully utilized.

[0050] Please refer to Figures 1 to 5 : Figures 1 to 5 A nuclear power plant tunnel robot material conveying device is shown, which comprises a transmission shaft 1, a spiral blade 2, and a driving unit.

[0051] The transmission shaft 1 extends along the flow direction of the material, and its axial direction is consistent with the flow direction of the material, conveying the material along the axial direction of the transmission shaft 1. The spiral blade 2 is arranged on the outer circumferential surface of the transmission shaft 1 along the extension direction of the transmission shaft 1. With the rotation of the transmission shaft 1, the spiral blade 2 thereon rotates, and the material is driven by the spiral blade 2 and conveyed along the axial direction of the transmission shaft 1 to the rear.

[0052] The driving unit comprises a driving gear 31, a driven gear 32, and a driving motor 30. The driving gear 31 and the driven gear 32 are both umbrella-shaped. The driving gear 31 is perpendicularly engaged with the driven gear 32. The driving gear 31 is coaxially connected with the output end of the driving motor 30. The driven gear 32 is coaxially connected with the transmission shaft 1. The torque output from the driving motor 30 is transmitted to the transmission shaft 1 through the driving gear 31 and the driven gear 32 in sequence, driving the rotation of the spiral blade 2.

[0053] The active gear 31 and the driven gear 32 are vertically engaged to realize the rotation angle transmission, so that the driving motor 30 can be arranged perpendicularly to the transmission shaft 1, and the spiral blade 2 extends along the extension direction of the transmission shaft 1, that is, the driving motor 30 is perpendicular to the extension direction of the spiral blade 2. The extension direction of the transmission shaft 1 is consistent with the flow direction of the material, so that the driving motor 30 is also perpendicular to the flow direction of the material. Therefore, compared with the conventional spiral conveying structure in which the output end of the driving motor 30 is on the same axis as the extension direction of the spiral blade 2, the axial load on the driving motor 30 of the nuclear power plant tunnel machine material conveying device is greatly reduced, the energy consumption is reduced, and the transmission efficiency is higher. Moreover, the structural characteristics of the spiral blade 2 have the advantage of preventing foreign matter from being blocked.

[0054] Further, in the embodiment, the transmission shaft 1 is rotatable in two directions opposite in rotation under the drive of the driving motor 30. Specifically, the two opposite directions can be defined as forward rotation and reverse rotation. When forward rotation, it is used for normal conveying of the material. When reverse rotation, it is used for solving the jamming problem.

[0055] The purpose of this arrangement is that although the structural characteristics of the spiral blade 2 have the advantage that the probability of being mixed with foreign matter and causing jamming is extremely low, but when there is too much material or large foreign matter is mixed in, there is still a risk of jamming of the driving unit. When the driving unit is jammed, the transmission shaft 1 can be rotated in the opposite direction, and the material and the foreign matter in it are pushed out in the opposite direction, thereby solving the jamming problem.

[0056] In the embodiment, the driving unit further includes a gear box 33, a first sealing and supporting assembly, and a second sealing and supporting assembly. The active gear 31 and the driven gear 32 are both accommodated in the gear box 33 to isolate the outside environment and prevent pollution and erosion. The first sealing and supporting assembly and the second sealing and supporting assembly are used to seal the output end of the driving motor 30 and the transmission shaft 1 with the gear box 33, and to support the rotation of the output end of the driving motor 30 and the transmission shaft 1.

[0057] Specifically, the mutually perpendicular surfaces of the gear box 33 are respectively provided with a first through hole 331 and a second through hole 332. The output end of the driving motor 30 is sealingly matched with the hole wall of the first through hole 331 through the first sealing and supporting assembly, and is in transmission connection with the active gear 31. The transmission shaft 1 is sealingly matched with the hole wall of the second through hole 332 through the second sealing and supporting assembly, and is in transmission connection with the driven gear 32.

[0058] Further, the first sealing and supporting assembly can include a first end cover 41 and a first bearing 51.

[0059] Specifically, the first end cover 41 is used to seal the output end of the driving motor 30 with the first through hole 331 and to limit the axial position of the output end of the driving motor 30. The first bearing 51 is used to support the rotation of the output end of the driving motor 30.

[0060] The outer circumferential surface of the first end cover 41 is sealingly connected with the hole wall of the first through hole 331. The first bearing 51 is connected between the first end cover 41 and the driving gear 31. The driving gear 31 is sleeved on the output end of the driving motor 30. The first bearing limiting member is connected between the first bearing 51 and the first end cover 41.

[0061] The driving gear 31 is formed with a journal, and the first bearing 51 is installed on the journal of the driving gear 31.

[0062] The first sealing and supporting assembly can further include a first bearing limiting member (not shown in the figure) connected between the first bearing 51 and the first end cover 41, which is used to limit the first bearing 51 on the first end cover 41.

[0063] The box body of the gear box 33 is a quadrangular box which is assembled by bolt connection of each plate member. During installation, the first sealing and supporting assembly and the driving motor 30 are integrally fixed and installed in the first through hole 331. When the driving gear 31 is under stress, the axial force is borne by the bearing and transmitted to the inner wall of the first through hole 331 of the box body of the gear box 33, so that the axial load borne by the driving motor 30 is small. Correspondingly, a shoulder structure can be provided on the inner wall of the first through hole 331 to strengthen the sealing connection between the first end cover 41 and the inner wall of the first through hole 331.

[0064] By controlling the rotation direction of the driving motor 30, the transmission shaft 1 can be controlled to rotate in two opposite directions, i.e. forward rotation to convey materials or reverse rotation to solve the problem of jamming.

[0065] Further, the second sealing and supporting assembly can include a second end cover 42 and a second bearing 52.

[0066] Specifically, the second end cover 42 is used to seal the transmission shaft 1 with the second through hole 332 and to limit the axial position of the transmission shaft 1. The second bearing 52 is used to support the rotation of the transmission shaft 1.

[0067] The outer circumferential surface of the second end cover 42 is sealingly connected with the hole wall of the second through hole 332. The second bearing 52 is connected between the second end cover 42 and the transmission shaft 1. The driven gear 32 is sleeved on the outer circumferential surface of the transmission shaft 1. The driven gear 32 and the second bearing 52 are located at two positions in the axial direction of the transmission shaft 1, and the driven gear 32 and the second bearing 52 can be connected or not connected.

[0068] The second sealing support assembly can further include a second bearing limiting member 62 connected between the second bearing 52 and the second end cover 42, for limiting the second bearing 52 on the second end cover 42.

[0069] In the embodiment, the transmission shaft 1 includes an axial main shaft 10 and a hollow cylindrical shaft 11. The main shaft 10 is used for transmission connection with the driven gear 32 to transmit torque. The cylindrical shaft 11 is hollow in structure, which can reduce the overall weight of the transmission shaft 1, reduce the rotating load, and improve the transmission efficiency.

[0070] The helical blade 2 is arranged on the outer circumferential surface of the cylindrical shaft 11 along the extension direction of the cylindrical shaft 11.

[0071] The main shaft 10 is arranged in the gear box 33, which includes a first part accommodated in the gear box 33 and in transmission connection with the driven gear 32, and a second part extending out of the gear box 33. The first part of the main shaft 10 is used for transmission connection with the driven gear 32 to transmit torque. The second part of the main shaft 10 is used for connection with the cylindrical shaft 11. In addition, the cylindrical shaft 11 is detachably connected with the second part of the main shaft 10.

[0072] Further, the nuclear power plant tunnel machine material conveying device further includes an expansion sleeve 7 for detachable connection between the cylindrical shaft 11 and the second part of the main shaft 10. Specifically, one end of the cylindrical shaft 11 away from the main shaft 10 is a closed end. The other end of the cylindrical shaft 11 close to the main shaft 10 is provided with a through hole for the main shaft 10 to extend into. The inner wall of the cylindrical shaft 11 is provided with an annular fixing part 110. The second part of the main shaft 10 extends into the cylindrical shaft 11 from the through hole and is detachably connected with the annular fixing part 110 through the expansion sleeve 7.

[0073] In this way, the hollow structure of the cylindrical shaft 11 can be ingeniously utilized to reduce the overall weight of the transmission shaft 1, while facilitating the detachable connection between the cylindrical shaft 11 and the second part of the main shaft 10.

[0074] Further, the circumferential surface of the cylindrical shaft 11 is provided with an operation hole corresponding to the position of the annular fixing part 110. The nuclear power plant tunnel machine material conveying device further includes a mounting cover 111 (such as a threaded cap) matched with the operation hole. Figure 1(As shown). During normal operation, the mounting cover 111 closes to the operating hole, isolating and sealing the interior of the cylindrical shaft 11 from the external environment. When it is necessary to install the cylindrical shaft 11 and the spindle 10, the second part of the spindle 10 is inserted into the cylindrical shaft 11 through the through hole and into the annular hole of the annular fixing part 110. The mounting cover 111 is then opened, and the expansion sleeve 7 is fitted onto the second part of the spindle 10 to fix the second part of the spindle 10 onto the annular fixing part 110. The mounting cover 111 is then closed back to the operating hole. Similarly, when it is necessary to disassemble the cylindrical shaft 11 and the spindle 10, the mounting cover 111 is opened, and the expansion sleeve 7 is removed from the second part of the spindle 10. In this way, the cylindrical shaft 11 and the second part of the spindle 10 can be tightly fitted together, while facilitating disassembly and assembly.

[0075] Furthermore, in order to adapt the material conveying device of the nuclear power plant tunnel robot to large cleaning equipment, in this embodiment: the main shaft 10 includes two second parts. The cylindrical shaft 11 includes a first part and a second part located on the same axis.

[0076] One of the second portions of the main shaft 10 is axially connected to the first portion of the cylindrical shaft 11. The other second portion of the main shaft 10 is axially connected to the second portion of the cylindrical shaft 11. That is, the first and second portions of the cylindrical shaft 11 are respectively connected to the two second portions of the main shaft 10 extending from the gearbox 33.

[0077] Correspondingly, both the first and second parts of the cylindrical shaft 11 have helical blades 2, and the helical directions of the helical blades 2 in the two parts are continuously corresponding.

[0078] like Figure 5 As shown, a large cleaning device includes a frame 8 and a milling mechanism (not shown) mounted on the frame 8. The first part of the cylindrical shaft 11 is at the front end of the frame 8 and extends outwards, directly contacting the material formed by the accumulation of marine organisms in front. The second part of the cylindrical shaft 11 extends into the rear milling mechanism. Driven by the spiral blades 2, the material flows from the first part of the cylindrical shaft 11 to the second part and enters the milling mechanism.

[0079] The lengths of the first and second parts of the cylindrical shaft 11 can be adjusted according to different working conditions.

[0080] In this embodiment, the material conveying device for the nuclear power plant tunnel robot also includes at least two mounting plates. The two mounting plates are detachably connected to two relatively parallel surfaces of the gearbox 33 via bolts or other connecting components. Figure 5 As shown, the mounting plate can be connected to the gearbox 33 and the frame 8 of the large cleaning equipment. Thus, the nuclear power plant tunnel robot material handling device can be easily and quickly installed onto other equipment for adaptation and use via the mounting plate.

[0081] Further, when the mounting plate is mounted on the gear box 33, the plate thickness direction is perpendicular to the flow direction of the material, so as to achieve the maximum reduction of the flow resistance of the mounting plate to the material.

[0082] Further, in the embodiment, the nuclear power plant tunnel machine material conveying device further comprises a motor shield 70 for covering the driving motor 30 therein, so as to play a protection role.

[0083] The gear box 33 comprises a first surface 333 where the first through hole 331 is located, and a second surface 334 which is arranged in parallel on the opposite side of the first surface 333. The two mounting plates are respectively a first mounting plate 91 and a second mounting plate 92.

[0084] The first mounting plate 91 is provided with a motor avoiding hole for the driving motor 30 to pass through. The first mounting plate 91 is detachably connected with the first surface 333 of the gear box 33. The motor shield 70 is detachably connected with the first mounting plate 91, and wraps the part of the driving motor 30 outside the gear box 33. The shape of the motor shield 70 is designed in the shape of the shell of the driving motor 30 which needs to be covered and protected. The second mounting plate 92 is detachably connected with the second surface 334 of the gear box 33.

[0085] Considering the complex environmental conditions in the submarine water taking tunnel and the poor field working conditions, the driving motor 30 can be preferably a hydraulic motor, which is more stable in work and has large output torque, and can better adapt to the poor environment of the submarine water taking tunnel and the like.

[0086] It can be understood that the above embodiment only expresses the preferred embodiment of the present application, which is described in more detail and in detail, but cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and some deformations and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.

Claims

1. A nuclear power plant tunnel machine material delivery device, characterized by, The transmission shaft (1), the helical blade (2), the driving unit; The transmission shaft (1) extends along the flow direction of the material; The helical blade (2) is arranged on the outer circumferential surface of the transmission shaft (1) along the extension direction of the transmission shaft (1); The driving unit comprises a driving gear (31), a driven gear (32) and a driving motor (30); The driving gear (31) is perpendicular to the driven gear (32); The driving gear (31) is coaxially connected with the output end of the driving motor (30); the driven gear (32) is coaxially connected with the transmission shaft (1); The driving unit further comprises a gear box (33), a first sealing support assembly and a second sealing support assembly; the mutually perpendicular surfaces of the gear box (33) are respectively provided with a first through hole (331) and a second through hole (332); The driving gear (31) and the driven gear (32) are located in the gear box (33); The output end of the driving motor (30) is sealingly connected with the hole wall of the first through hole (331) through the first sealing support assembly, and is drivingly connected with the driving gear (31); The transmission shaft (1) is sealingly connected with the hole wall of the second through hole (332) through the second sealing support assembly, and is drivingly connected with the driven gear (32); The transmission shaft (1) comprises a main shaft (10) and a hollow cylindrical shaft (11) which are axially connected; The helical blade (2) is arranged on the outer circumferential surface of the cylindrical shaft (11) along the extension direction of the cylindrical shaft (11); The main shaft (10) is arranged in the gear box (33) and comprises a first part accommodated in the gear box (33) and drivingly connected with the driven gear (32), and a second part extending out of the gear box (33); The cylindrical shaft (11) is detachably connected with the second part of the main shaft (10).

2. The nuclear power plant tunnel robotic material delivery device of claim 1, wherein, The first sealing support assembly comprises a first end cover (41) and a first bearing (51); The outer circumferential surface of the first end cover (41) is sealingly connected with the hole wall of the first through hole (331); the first bearing (51) is connected between the first end cover (41) and the driving gear (31); and the driving gear (31) is sleeved on the output end of the driving motor (30).

3. The nuclear power plant tunnel robotic material delivery device of claim 2, wherein, The first sealing support assembly further comprises a first bearing limiting piece connected between the first end cover (41) and the first bearing (51).

4. The nuclear power plant tunnel robotic material delivery device of claim 1, wherein, The second sealing support assembly comprises a second end cover (42) and a second bearing (52); The outer circumferential surface of the second end cover (42) is sealingly connected with the hole wall of the second through hole (332); the second bearing (52) is connected between the second end cover (42) and the transmission shaft (1); and the driven gear (32) is sleeved on the outer circumferential surface of the transmission shaft (1).

5. The nuclear power plant tunnel robotic material delivery device of claim 4, wherein, The second sealing support assembly further comprises a second bearing limiting piece (62) connected between the second end cover (42) and the second bearing (52).

6. The nuclear power plant tunnel robotic material delivery device of claim 1, wherein, The nuclear power plant tunnel machine material conveying device further comprises a bulging sleeve (7). The cylinder shaft (11) is closed at one end away from the main shaft (10), and a through hole is formed at one end close to the main shaft (10) for the main shaft (10) to extend into; an annular fixing part (110) is arranged on the inner wall of the cylinder shaft (11). The second part of the main shaft (10) extends into the cylinder shaft (11) from the through hole, and is detachably connected with the annular fixing part (110) through the bulging sleeve (7).

7. The nuclear power plant tunnel robotic material delivery device of claim 6, wherein, An operation hole is formed on the circumferential surface of the cylinder shaft (11) at a position corresponding to the annular fixing part (110), and the nuclear power plant tunnel machine material conveying device further comprises a mounting cover (111) matched with the operation hole.

8. The nuclear power plant tunnel robotic material delivery device of claim 1, wherein, The main shaft (10) comprises two second parts; the cylinder shaft (11) comprises a first part and a second part on the same axis; One of the second parts of the main shaft (10) is axially connected with the first part of the cylinder shaft (11), and the other second part of the main shaft (10) is axially connected with the second part of the cylinder shaft (11).

9. The nuclear power plant tunnel robotic material delivery device of claim 1, wherein, The nuclear power plant tunnel machine material conveying device further comprises at least two mounting plates; the two mounting plates are detachably connected with two opposite parallel surfaces of the gear box (33).

10. The nuclear power plant tunnel robotic material delivery device of claim 9, wherein, When the mounting plate is mounted on the gear box (33), the plate thickness direction is perpendicular to the flow direction of the material.

11. The nuclear power plant tunnel robotic material delivery apparatus of claim 9, wherein, The nuclear power plant tunnel machine material conveying device further comprises a motor shield (70); the gear box (33) comprises a first surface (333) where the first through hole (331) is located, and a second surface (334) arranged in parallel on the opposite side of the first surface (333); The two mounting plates are a first mounting plate (91) and a second mounting plate (92); The first mounting plate (91) is provided with a motor avoiding hole for the driving motor (30) to pass through; the first mounting plate (91) is detachably connected with the first surface (333) of the gear box (33); the motor shield (70) is detachably connected with the first mounting plate (91), and the part of the driving motor (30) outside the gear box (33) is wrapped therein; The second mounting plate (92) is detachably connected with the second surface (334) of the gear box (33).

12. The nuclear power plant tunnel robotic material delivery device of any of claims 1-11, wherein, The transmission shaft (1) is rotatable in two opposite directions.

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