Belt conveyor sealing cover, belt conveyor device and earth pressure shield machine

Abstract

The utility model provides a belt conveyor sealing cover, a belt conveyor device and an earth pressure shield machine, and belongs to the field of tunneling equipment. The belt conveyor sealing cover comprises a sealing cover body, at least two access doors are adjacently arranged on the side portion and / or the top of at least part of the section of the sealing cover body in the extending direction of the sealing cover body, the area where the access doors are adjacently arranged forms an access section, and any access door in the access section can be opened and closed. When any position of the deslagging belt conveyor in the overhauling section breaks down, the corresponding overhauling door can be opened for overhauling operation. The belt conveyor device comprises the belt conveyor sealing cover. The earth pressure shield tunneling machine comprises the belt conveyor device. According to the belt conveyor sealing cover, the overhauling section is arranged, the overhauling door is arranged on the overhauling section in the mode of being adjacent to the overhauling section, overhauling personnel can conduct overhauling operation by moving in the belt conveyor sealing cover, and convenience of the overhauling operation is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel excavation equipment, in particular to a belt conveyor closing cover and an earth pressure shield machine. Background Art

[0002] During tunnel construction, strata containing flammable, explosive, or toxic and hazardous substances are often encountered. When using conventional belt conveyors to transport the excavated soil, the flammable, explosive, or toxic and hazardous substances can easily overflow from the excavated soil and spread into the tunnel, threatening the safety of construction workers in the tunnel.

[0003] The Chinese invention patent application with the existing application publication number CN115744157A and the application publication date of March 7, 2023 discloses a continuous belt conveyor device, which is provided with a closed cover on the outside of the front section of the belt conveyor, and the front end of the closed cover is sealed and connected to the slag outlet of the screw conveyor through a soft connection, which not only ensures the sealing, but also can adapt to the relative position change of the screw conveyor and the closed cover. The closed cover can prevent the diffusion of asbestos fibers during the transportation of slag and ensure the safety of construction personnel in the tunnel. The closed cover includes a closed cover body and an inspection door arranged on the side wall of the closed cover body, and the inspection door can facilitate maintenance personnel to enter and exit the closed cover. The continuous belt conveyor device can also be used in tunnel construction in strata where flammable, explosive or toxic and harmful substances exist to isolate flammable, explosive or toxic and harmful gases.

[0004] When a belt conveyor in the closed cover fails, the operator can enter the closed cover through the inspection door to inspect the belt conveyor. In the prior art, the inspection doors are independently arranged. When a belt conveyor fails at a certain position, the operator can enter the closed cover through the inspection door closer to the position, move to the fault position and then inspect it. However, in actual applications, in order to leave a larger passage for materials to pass through on the rear supporting trailer, the size of the closed cover needs to be minimized. However, after the size of the closed cover is reduced, the gap between the closed cover and the belt conveyor will be smaller, making it difficult for maintenance personnel to move in the closed cover and difficult to quickly and conveniently reach the fault position for maintenance operations. Utility Model Content

[0005] The utility model aims to provide a belt conveyor enclosing cover to solve the problem in the prior art that it is difficult for maintenance personnel to move to the fault position of the belt conveyor in the enclosing cover to perform maintenance operations after the size of the enclosing cover is reduced in order to leave a larger passage for materials to pass through on the rear supporting trailer.

[0006] Another object of the utility model is to provide a belt conveyor device and an earth pressure shield machine to solve the above technical problems.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the belt conveyor closing cover provided by the utility model is:

[0008] The belt conveyor enclosed cover comprises an enclosed cover body, at least two inspection doors are arranged adjacent to the side and / or top of at least part of the enclosed cover body along the extension direction of the enclosed cover body, and the area adjacent to the inspection doors constitutes an inspection section, and any inspection door in the inspection section can be opened and closed, so that when a fault occurs at any position of the slag conveyor in the inspection section, the corresponding inspection door can be opened for maintenance operation.

[0009] As a further improvement, inspection doors are provided at the top and the left and right sides of the inspection section. The main body of the closed cover in the inspection section is a frame structure, and the inspection doors are mounted on the frame structure.

[0010] As a further improvement, a connecting ear plate is fixedly provided at the edge of the inspection door, and the connecting ear plate is provided with at least one through hole for a bolt to pass through so as to connect the connecting ear plate to the frame structure.

[0011] As a further improvement, a connecting ear plate is provided on each side of the inspection door.

[0012] As a further improvement, the entire length of the enclosure body is the inspection section.

[0013] As a further improvement, the inspection door comprises a door body, at least one of the door bodies is provided with an observation port, and a transparent partition is sealed at the observation port.

[0014] As a further improvement, the inspection door with the observation port is an inspection door with a window, and the inspection door without the observation port is an ordinary inspection door. The inspection door with a window and the ordinary inspection door are alternately arranged along the extension direction of the closed cover body.

[0015] As a further improvement, the inspection door includes a door body, at least one door body is provided with an observation port, a transparent partition is sealed at the observation port, the inspection door with the observation port is a maintenance door with a window, the inspection door without the observation port is an ordinary inspection door, and only an ordinary inspection door is provided on the top of the closed cover body.

[0016] As a further improvement, the door body is connected to a frame body at the observation port, a transparent partition is clamped between the door body and the frame body, and a buffer seal is provided between the transparent partition board and the door body and between the transparent partition board and the frame body.

[0017] As a further improvement, a camera facing the observation port is arranged outside the enclosure body.

[0018] The beneficial effect is that the belt conveyor closure provided by the utility model is an improvement over the prior art. The belt conveyor closure is provided with an inspection section, and within the scope of the inspection section, at least two inspection doors are provided in close proximity to the side and / or top of the closure body of the belt conveyor closure along the extension direction of the belt conveyor closure, and when a fault occurs at any position in the area corresponding to the inspection section of the slag conveyor and the inspection section, the maintenance personnel open the inspection door closer to the fault position, and can directly perform maintenance operations on the fault position without moving in the belt conveyor closure to approach the fault position, effectively ensuring the rapidity and convenience of the maintenance operation.

[0019] In order to achieve the above-mentioned purpose, the technical solution of the belt conveyor device provided by the utility model is:

[0020] The belt conveyor device comprises a slag discharge belt conveyor, the outer sleeve of the slag discharge belt conveyor is provided with a belt conveyor closing cover, the belt conveyor closing cover comprises a closing cover body, at least two maintenance doors are arranged adjacent to the side and / or top of at least part of the closing cover body along the extension direction of the closing cover body, the area adjacent to the maintenance doors constitutes a maintenance section, and any maintenance door in the maintenance section can be opened and closed, so that when a fault occurs at any position of the slag discharge belt conveyor in the maintenance section, the corresponding maintenance door can be opened for maintenance operation.

[0021] As a further improvement, inspection doors are provided at the top and the left and right sides of the inspection section. The main body of the closed cover in the inspection section is a frame structure, and the inspection doors are mounted on the frame structure.

[0022] As a further improvement, a connecting ear plate is fixedly provided at the edge of the inspection door, and the connecting ear plate is provided with at least one through hole for a bolt to pass through so as to connect the connecting ear plate to the frame structure.

[0023] As a further improvement, a connecting ear plate is provided on each side of the inspection door.

[0024] As a further improvement, the entire length of the enclosure body is the inspection section.

[0025] As a further improvement, the inspection door comprises a door body, at least one of the door bodies is provided with an observation port, and a transparent partition is sealed at the observation port.

[0026] As a further improvement, the inspection door with the observation port is an inspection door with a window, and the inspection door without the observation port is an ordinary inspection door. The inspection door with a window and the ordinary inspection door are alternately arranged along the extension direction of the closed cover body.

[0027] As a further improvement, the inspection door includes a door body, at least one door body is provided with an observation port, a transparent partition is sealed at the observation port, the inspection door with the observation port is a maintenance door with a window, the inspection door without the observation port is an ordinary inspection door, and only an ordinary inspection door is provided on the top of the closed cover body.

[0028] As a further improvement, the door body is connected to a frame body at the observation port, a transparent partition is clamped between the door body and the frame body, and a buffer seal is provided between the transparent partition board and the door body and between the transparent partition board and the frame body.

[0029] As a further improvement, a camera facing the observation port is arranged outside the enclosure body.

[0030] The beneficial effect is that the belt conveyor device provided by the utility model is an improvement over the prior art. The belt conveyor enclosed cover in the belt conveyor device is provided with an inspection section, and within the scope of the inspection section, at least two inspection doors are provided in close proximity to the side and / or top of the enclosed cover body of the belt conveyor enclosed cover along the extension direction of the belt conveyor enclosed cover, and when a fault occurs at any position in the area corresponding to the inspection section of the slag conveyor and the inspection section, the maintenance personnel open the inspection door closer to the fault position, and can directly perform maintenance operations on the fault position without moving in the belt conveyor enclosed cover to approach the fault position, which effectively ensures the rapidity and convenience of the maintenance operation.

[0031] To achieve the above purpose, the technical solution of the earth pressure shield machine provided by the utility model is:

[0032] The earth pressure shield machine comprises a shield body and a screw conveyor arranged on the shield body. A belt conveyor device is arranged at the tail end of the screw conveyor. The belt conveyor device comprises a slag discharge belt conveyor. The outer sleeve of the slag discharge belt conveyor is provided with a belt conveyor closing cover. The belt conveyor closing cover comprises a closing cover body. At least two maintenance doors are arranged adjacent to the side and / or top of at least part of the closing cover body along the extension direction of the closing cover body. The area adjacent to the maintenance doors constitutes a maintenance section. Any maintenance door in the maintenance section can be opened and closed, so that when a fault occurs at any position of the slag discharge belt conveyor in the maintenance section, the corresponding maintenance door can be opened for maintenance operation.

[0033] As a further improvement, inspection doors are provided at the top and the left and right sides of the inspection section. The main body of the closed cover in the inspection section is a frame structure, and the inspection doors are mounted on the frame structure.

[0034] As a further improvement, a connecting ear plate is fixedly provided at the edge of the inspection door, and the connecting ear plate is provided with at least one through hole for a bolt to pass through so as to connect the connecting ear plate to the frame structure.

[0035] As a further improvement, a connecting ear plate is provided on each side of the inspection door.

[0036] As a further improvement, the entire length of the enclosure body is the inspection section.

[0037] As a further improvement, the inspection door comprises a door body, at least one of the door bodies is provided with an observation port, and a transparent partition is sealed at the observation port.

[0038] As a further improvement, the inspection door with the observation port is an inspection door with a window, and the inspection door without the observation port is an ordinary inspection door. The inspection door with a window and the ordinary inspection door are alternately arranged along the extension direction of the closed cover body.

[0039] As a further improvement, the inspection door includes a door body, at least one door body is provided with an observation port, a transparent partition is sealed at the observation port, the inspection door with the observation port is a maintenance door with a window, the inspection door without the observation port is an ordinary inspection door, and only an ordinary inspection door is provided on the top of the closed cover body.

[0040] As a further improvement, the door body is connected to a frame body at the observation port, a transparent partition is clamped between the door body and the frame body, and a buffer seal is provided between the transparent partition board and the door body and between the transparent partition board and the frame body.

[0041] As a further improvement, a camera facing the observation port is arranged outside the enclosure body.

[0042] The beneficial effect is that the earth pressure shield provided by the utility model is an improvement over the prior art. The belt conveyor enclosure in the earth pressure shield is provided with an inspection section, and within the scope of the inspection section, at least two inspection doors are provided in close proximity to the side and / or top of the enclosure body of the belt conveyor enclosure along the extension direction of the belt conveyor enclosure, and when a fault occurs at any position in the area corresponding to the inspection section of the slag conveyor and the inspection section, the maintenance personnel open the inspection door closer to the fault position, and can directly perform maintenance operations on the fault position without moving in the belt conveyor enclosure to approach the fault position, effectively ensuring the rapidity and convenience of the maintenance operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the earth pressure shield machine in the utility model;

[0044] Figure 2 It is a partial structural schematic diagram of an embodiment of the earth pressure shield machine in the utility model;

[0045] Figure 3 A cross-sectional view of an embodiment of an earth pressure shield machine in the utility model;

[0046] Figure 4 It is a cross-sectional view of a belt conveyor enclosure cover in one embodiment of the earth pressure shield machine of the utility model;

[0047] Figure 5 It is a schematic diagram of the top structure of a belt conveyor closing cover in one embodiment of the earth pressure shield machine in the utility model;

[0048] Figure 6It is a schematic diagram of the side structure of a belt conveyor closing cover in one embodiment of the earth pressure shield machine in the utility model;

[0049] Figure 7 It is a structural schematic diagram of a common inspection door in one embodiment of the earth pressure shield machine of the utility model;

[0050] Figure 8 A cross-sectional view of a common inspection door in one embodiment of the earth pressure shield machine of the utility model;

[0051] Fig. 9 It is a structural schematic diagram of an inspection door with a window in one embodiment of the earth pressure shield machine of the utility model;

[0052] Fig.10 A cross-sectional view of an inspection door with a window in one embodiment of a tunnel boring machine in the utility model;

[0053] Fig.11 for Fig.10 A partial enlarged view of point A in the middle.

[0054] Description of reference numerals:

[0055] 1. Shield; 2. Screw conveyor; 3. Cutter head; 4. Rear trailer; 5. Slag conveyor belt; 6. Soil bin; 7. Conveyor belt enclosure; 71. Bottom plate; 72. Longitudinal rod; 73. Cross rod; 74. Inclined plate; 75. Inspection door; 751. Door body; 7511. Main body; 7512. Installation part; 752. Connecting ear plate; 753. Observation port; 754. Transparent partition; 755. Embedded groove; 756. Frame; 757. Buffer seal; 758. Handle; 758. Mounting bolt; 8. Camera. DETAILED DESCRIPTION

[0056] The present invention is further described in detail below in conjunction with the embodiments.

[0057] In order to solve the problems in the prior art, the basic idea of ​​the utility model is to open an observation port on the door body of the maintenance door, so that maintenance personnel can observe the situation inside the belt conveyor enclosure from the outside of the belt conveyor enclosure, and it is also convenient for maintenance personnel to directly enter the belt conveyor enclosure through the maintenance door to perform maintenance operations when necessary.

[0058] Specific embodiment 1 of the earth pressure shield machine provided by the utility model:

[0059] Earth Pressure Shield Machine, see Appendix Figure 1 , Attachment Figure 2 and attached Figure 3, including a shield body 1, a screw conveyor 2 arranged on the shield body 1, a cutter disc 3 arranged in front of the shield body 1, a rear supporting trailer 4 arranged behind the shield body 1, a slag conveyor 5 arranged on the rear supporting trailer 4, and a belt conveyor closing cover 7 sleeved outside the slag conveyor 5. A soil bin 6 is arranged between the shield body 1 and the cutter disc 3, the front end of the screw conveyor 2 is connected to the soil bin 6, the rear end of the screw conveyor 2 is located directly above the front end of the slag conveyor 5, and the rear end of the screw conveyor 2 is sealed and connected to the belt conveyor closing cover 7 through a soft connection. The slag conveyor 5 and the belt conveyor closing cover 7 together constitute a belt conveyor device.

[0060] Since the screw conveyor 2 is sealed and connected to the belt conveyor closure cover 7, during the excavation process, the inflammable and explosive gas or toxic and harmful gas in the soil layer will enter the belt conveyor closure cover 7 through the screw conveyor 2, thereby preventing the inflammable and explosive gas or toxic and harmful gas from spreading in the tunnel. After adding air intake and exhaust pipes to the belt conveyor closure cover 7, the inflammable and explosive gas or toxic and harmful gas can be discharged in time.

[0061] See attached Figure 4 The belt conveyor enclosed cover 7 comprises an enclosed cover body and an inspection door 75 mounted on the enclosed cover body. The inspection door 75 is arranged adjacent to the side and / or top of at least a portion of the enclosed cover body along the extending direction of the belt conveyor enclosed cover 7, and the area adjacent to the inspection door constitutes an inspection section.

[0062] In this embodiment, the entire length of the enclosure body is the inspection section, so the inspection doors 75 are arranged adjacent to each other in the entire length of the enclosure body. In other embodiments, the inspection section is a partial section of the enclosure body, and in this embodiment, at least two inspection doors are arranged adjacent to each other in the inspection section, and the number of inspection doors can be determined as needed.

[0063] In this embodiment, inspection doors 75 are provided on the top and sides of the enclosed cover body to provide more options for maintenance operations. In other embodiments, the inspection door 75 may be provided only on the top or only on the sides of the enclosed cover body.

[0064] The close proximity mentioned in the present invention means that two adjacent inspection doors 75 in the extension direction of the belt conveyor enclosed cover 7 are close to each other, or there is a gap between two adjacent inspection doors 75 in the extension direction of the belt conveyor enclosed cover 7, but the condition that the gap needs to meet is: the maintenance personnel can perform maintenance operations on the fault position corresponding to the interval on the slag conveyor 5 at the maintenance door adjacent to the gap, that is, when the slag conveyor 5 fails at any position in the area corresponding to the maintenance section, the maintenance personnel opens the maintenance door closer to the fault position and can directly perform maintenance operations on the fault position without moving inside the belt conveyor enclosed cover 7 to approach the fault position.

[0065] In the maintenance section, the main body of the closed cover is a frame structure, the bottom of the frame structure is provided with a bottom plate 71, and the top and side of the frame structure are respectively a top frame and a side frame. In a part of the belt conveyor closed cover 7, if it is necessary to avoid the pipeline structure, the height of one of the side frames can be lowered, and an inclined plate 74 can be fixedly connected between the side frame and the top frame to eliminate the sharp corner of the top of the belt conveyor closed cover 7.

[0066] See attached Figure 4 Combined with the attached Figure 5 and attached Figure 6 The top frame and the side frame each include two longitudinal bars 72 parallel to each other and a plurality of transverse bars 73 connected between the two longitudinal bars 72. The length direction of the longitudinal bars 72 is in the same direction as the extension direction of the belt conveyor closure cover 7. The length direction of the transverse bars 73 is perpendicular to the extension direction of the belt conveyor closure cover 7. The top frame and the side frame connected thereto share one longitudinal bar 72.

[0067] By configuring the main body of the enclosure to be a frame structure, the installation space for installing the inspection door 75 can be arranged more densely, thereby increasing the coverage of the inspection door 75 and ensuring the convenience of the inspection operation.

[0068] See attached Figure 7 and attached Figure 8 The inspection door 75 includes a door body 751, which is connected to the main body of the closed cover in an openable and closable manner. In some embodiments, a detachable connection structure is provided between the door body 751 and the main body of the closed cover, so as to completely remove the door body 751 from the main body of the closed cover. The size of the door body 751 is larger than the size of the installation space. When the door body 751 is installed, the edge of the door body 751 overlaps the installation frame instead of being embedded in the installation frame. A sealing strip is provided between the door body 751 and the installation frame. The detachable connection structure includes a connecting ear plate 752 fixedly arranged at the edge of the door body 751 and a pressing member connected to the main body of the closed cover. The pressing member and the connecting ear plate 752 are pressed together so that the door body 751 presses the sealing strip. Specifically, the pressing member is a pressing bolt, and a perforation for the pressing bolt to pass through is provided on the connecting ear plate 752, and a threaded hole threadedly connected to the pressing bolt is provided at a corresponding position of the installation frame. In other embodiments, the pressing member can also be a lock buckle, which is a prior art and will not be described in detail. Two handles 758 are provided on the outer side of the door body 751 . The two handles 758 are arranged at intervals along the length direction of the door body 751 to facilitate operators to disassemble and assemble the door body 751 .

[0069] In this embodiment, when the door body 751 is connected to the main body of the closure cover, the door body 751 is in a closed state; after the door body 751 is removed from the main body of the closure cover, the door body 751 is in an open state. The inspection door 75 is fixedly mounted on the mounting frame using the top pressure bolts, which can ensure the installation reliability of the inspection door 75 and can also facilitate the complete removal of the inspection door 75 and the replacement of the inspection door 75 as needed.

[0070] See attached Fig. 9 and attached Fig.10 The door body 751 of the partial inspection door 75 is provided with an observation port 753, and a transparent partition 754 is provided at the observation port 753. In this embodiment, the transparent partition 754 is explosion-proof glass. In other embodiments, the transparent partition 754 can also be organic glass that meets the explosion-proof requirements. Fig.11 The door body 751 includes a main body 7511 and a mounting part 7512 connected to the outside of the main body 7511. The observation port 753 is provided on the main body 7511. The mounting part 7512 is arranged around the observation port 753. The mounting part 7512 is provided with an embedding groove 755 for embedding the transparent partition 754. The side of the mounting part 7512 away from the main body 7511 is connected with a frame 756 for fixing the transparent partition 754. The frame 756 is provided with a connecting hole for the mounting bolt 758 to pass through. The mounting part 7512 is provided with a threaded hole for threading with the mounting bolt 758. After the transparent partition 754 is embedded in the embedding groove 755, the frame 756 is connected to the mounting part 7512. The transparent partition 754 is sandwiched between the frame 756 and the mounting part 7512 to ensure the stability of the transparent partition 754.

[0071] A buffer seal 757 is provided in the embedding groove 755. The buffer seal 757 surrounds the edge of the transparent partition 754. The cross-section of the buffer seal 757 is U-shaped. Before the transparent partition 754 is embedded in the embedding groove 755, the buffer seal 757 is first sleeved on the edge of the transparent partition 754. After the transparent partition 754 is installed, the two side walls of the buffer seal 757 are respectively located between the transparent partition 754 and the installation portion 7512 and between the transparent partition 754 and the frame 756. The buffer seal 757 can better seal and buffer the edge of the transparent partition 754, prevent flammable and explosive gases or toxic and harmful gases from leaking therefrom, and prevent the transparent partition 754 from being damaged by vibration.

[0072] In this embodiment, the inspection door 75 provided with the observation port 753 is an inspection door with a window, and the inspection door 75 not provided with the observation port 753 is an ordinary inspection door. Figure 5, only an ordinary inspection door is provided on the top of the closed cover body, and the inspection door with window is only provided on the side of the closed cover body. The main reason why the inspection door with window is not provided on the top of the closed cover body is that when the maintenance personnel observe the inside of the belt closed cover during daily inspections, they need to climb high to observe from the top of the belt closed cover, and it is more convenient to observe from the side of the belt closed cover, so it is not necessary to provide an inspection door with window on the top. However, after the ordinary inspection door is provided on the top, if the slag conveyor 5 fails and it is inconvenient to enter the side of the belt conveyor closed cover 7 for maintenance, it can be entered from the top for maintenance, which provides more options for maintenance operations.

[0073] See attached Figure 6 , on the side of the closed cover body, the inspection doors with windows and the ordinary inspection doors are arranged alternately along the extension direction of the belt conveyor closed cover 7, so that the inspection doors with windows can be arranged evenly and with a wider coverage in the extension direction of the belt conveyor closed cover 7, which is convenient for maintenance personnel to observe the conditions of various positions of the slag conveyor 5; at the same time, since the cost of the inspection doors with windows is relatively high, the above arrangement can also control the overall cost of the belt conveyor closed cover 7. Of course, in other embodiments, the setting positions of the inspection doors with windows and the ordinary inspection doors can also be adjusted according to needs, or all ordinary inspection doors can be replaced with inspection doors with windows, or all inspection doors with windows can be replaced with ordinary inspection doors.

[0074] In the above embodiments, the buffer seal can completely cover the edge of the transparent partition to better protect the transparent partition. In other embodiments, the buffer seal can also be only provided between the transparent partition and the mounting portion.

[0075] In the above embodiments, the transparent partition is installed by using the mounting portion and the frame, which can ensure the stability of the transparent partition. In other embodiments, the transparent partition can also be installed by other structures. For example, in one embodiment, the door body only includes the main body, so the door body is not provided with an embedding groove, but an embedding groove is provided on the frame, and a buffer seal is set on the transparent partition, and the transparent partition is embedded in the embedding groove of the frame, and finally the frame is fixed to the door body by bolts. In another embodiment, if the transparent partition is organic glass, a hole can be opened in the transparent partition, and the transparent partition can be directly fixed to the door body by bolts.

[0076] In the above embodiments, a detachable connection structure is provided between the door body and the main body of the closed cover, so that the door body can be easily detached from the main body of the closed cover. In other embodiments, the inspection door further comprises a door frame, the door frame and the main body of the closed cover are fixedly connected by welding, and one side of the door body is hinged to the door frame, and the other side is connected to the door frame by a lock. In this embodiment, the door body can be opened and closed, but cannot be detached from the main body of the closed cover.

[0077] Specific embodiment 2 of the earth pressure shield machine provided by the utility model:

[0078] This embodiment is improved on the basis of embodiment 1. Compared with the embodiment, in order to reduce the workload of daily inspection, this embodiment sets a camera 8 outside the closed cover body, the lens of the camera faces the observation port 753, and the camera 8 records the state inside the closed cover 7 of the belt conveyor and transmits the video file to the monitoring room for remote monitoring by maintenance personnel. Since the camera 8 itself is charged, setting the camera 8 outside the closed cover body can ensure safety, and the external environment of the closed cover body is better than that inside, which is conducive to the work of the camera.

[0079] The camera 8 can be directly mounted on the enclosure body through a mounting base, or a pole can be installed on the rear supporting trailer, and the camera can be mounted on the pole to prevent the vibration of the enclosure body from affecting the video recording quality of the camera.

[0080] The specific embodiment of the belt conveyor device provided by the utility model:

[0081] The belt conveyor device is the belt conveyor device in the above-mentioned embodiment 1 or 2 of the earth pressure shield machine, and will not be described in detail here.

[0082] The specific embodiment of the belt conveyor closing cover provided by the utility model is as follows:

[0083] The belt conveyor enclosing cover is the belt conveyor enclosing cover in the above-mentioned embodiment 1 or 2 of the earth pressure shield machine, and will not be described in detail here.

[0084] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A belt conveyor closure cover, comprising a closure cover body, characterized in that: At least two inspection doors are arranged closely on the side and / or top of at least part of the closed cover body along the extension direction of the closed cover body. The area close to the inspection doors constitutes an inspection section. Any inspection door in the inspection section can be opened and closed, so that when a fault occurs at any position of the slag conveyor in the inspection section, the corresponding inspection door can be opened for maintenance operations.

2. The belt conveyor closure cover according to claim 1, characterized in that: Inspection doors are arranged on the top and left and right sides of the inspection section. The main body of the closed cover in the inspection section is a frame structure, and the inspection doors are installed on the frame structure.

3. The belt conveyor enclosure according to claim 2, characterized in that: A connecting ear plate is fixedly arranged at the edge of the inspection door, and at least one through hole is opened on the connecting ear plate for bolts to pass through so as to connect the connecting ear plate with the frame structure.

4. The belt conveyor enclosure according to claim 3 is characterized in that: A connecting ear plate is provided on each side of the inspection door.

5. The belt conveyor closure cover according to any one of claims 1 to 4, characterized in that: The entire length of the enclosure body is the inspection section.

6. The belt conveyor closing cover according to any one of claims 1 to 4, characterized in that: The inspection door comprises a door body, at least one of which is provided with an observation port, and a transparent partition is sealed at the observation port.

7. The belt conveyor enclosure according to claim 6, characterized in that: The inspection door with an observation port is an inspection door with a window, and the inspection door without an observation port is an ordinary inspection door. The inspection door with a window and the ordinary inspection door are arranged alternately along the extension direction of the closed cover body.

8. The belt conveyor enclosure according to claim 2, characterized in that: The inspection door includes a door body, at least one of which is provided with an observation port, and a transparent partition is sealed at the observation port. The inspection door with the observation port is a window inspection door, and the inspection door without the observation port is an ordinary inspection door. Only an ordinary inspection door is provided on the top of the closed cover body.

9. The belt conveyor enclosure according to claim 6, characterized in that: The door body is connected with a frame body at the observation port, a transparent partition is sandwiched between the door body and the frame body, and a buffer seal pad is arranged between the transparent partition board and the door body, and between the transparent partition board and the frame body.

10. The belt conveyor enclosure according to claim 6, characterized in that: A camera facing the observation port is arranged outside the closing cover body.

11. A belt conveyor device, including a slag conveyor, characterized in that: The exterior of the slag discharging belt conveyor is provided with a belt conveyor closing cover as described in any one of claims 1-10.

12. An earth pressure shield machine, comprising a shield body and a screw conveyor arranged on the shield body, characterized in that: The tail end of the screw conveyor is provided with the belt conveyor device according to claim 11.

Images