Shield muck transportation device

Abstract

The utility model discloses a shield muck transporting device, and belongs to the technical field of conveying devices. The problems that in shield muck transportation in the prior art, muck receiving is difficult, labor is consumed due to cooperation of multiple persons, and environmental sanitation is seriously affected by muck falling are solved. The belt conveyor comprises a belt conveyor body, the belt conveyor body comprises a belt frame and a belt, a telescopic mechanism is arranged on the belt frame at the discharging end of the belt conveyor body, a residue soil temporary storage box with a feeding port in the top is connected to the telescopic mechanism, and a discharging port is formed in the bottom of the residue soil temporary storage box. A first distance detection mechanism used for detecting the downward vertical distance is arranged at the position, close to the discharging opening, of the bottom of the muck temporary storage box. The muck temporary storage box is driven to move through the telescopic mechanism, so that movement of the muck discharging port is achieved, the height of muck can be monitored, the muck temporary storage box is moved according to the height of the muck, and the effect of evenly feeding the muck is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveying devices, and particularly relates to a shield muck transportation device. Background Technique

[0002] In the existing shield tunneling method, the cutter head of the shield machine cuts the soil layer, the screw conveyor transports the muck in the soil bin to the belt rack, the muck is transported to the muck truck through the belt rack of the shield machine, the muck truck transports the cut muck to the shaft of the tunnel, and the muck is stored in the muck pond by turning the muck with a gantry crane. The use mode of the belt conveyor of the shield machine is as follows: the feeding end of the belt conveyor is connected to the front end of the equipment bridge of the shield machine, and the whole belt conveyor follows the shield machine to step forward synchronously. The muck generated by the excavation of the shield machine directly falls to the feeding end of the belt conveyor through the screw conveyor, the muck is transported to the discharging end of the belt conveyor through the conveyor belt, and the muck truck receives the muck at the discharging end and then further transfers the muck.

[0003] Currently, in the field of shield machines, usually during the tunneling process of the shield machine equipment, the belt conveyor transports the soil layer cut by the cutter head to the muck truck. Since the belt rack of the shield machine will step forward synchronously with the shield machine, and in actual production, the rotation speed of the belt is usually relatively fast and the soil output is large. During the process of the slag bucket receiving the slag, the muck truck often moves in a reciprocating jogging manner to ensure the stable stacking of the muck and avoid serious slag dropping due to too high stacking. Such linkage operations require the coordination and cooperation of the operation driver, the muck truck driver, and the soil watching worker, which consumes manpower. Moreover, such muck discharging methods are difficult to receive the slag and require the driver to operate frequently, and the slag is likely to fall onto the surface of the equipment and the segments during the slag receiving period, resulting in poor environmental sanitation. Summary of the Utility Model

[0004] Aiming at the problems existing in the shield muck transportation in the prior art, such as difficult slag receiving, high consumption of labor by multiple people, and serious slag dropping affecting environmental sanitation, etc., the utility model provides a shield muck transportation device.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A shield muck transportation device includes a belt conveyor body. The belt conveyor body includes a belt rack and a belt. A telescopic mechanism is arranged on the belt rack at the discharging end of the belt conveyor body. A muck temporary storage box with a feeding port at the top is connected to the telescopic mechanism. The bottom of the muck temporary storage box is provided with a discharging port, and a first distance detection mechanism for detecting the downward vertical distance is arranged near the discharging port at the bottom of the muck temporary storage box.

[0007] After adopting this technical solution, a telescopic mechanism is arranged below the belt conveyor body, and the telescopic mechanism is connected to the muck temporary storage box. The telescopic mechanism drives the muck temporary storage box to move, so as to realize the movement of the muck discharge port. At the same time, the height of the muck in the muck truck at this position can be detected by the first distance detection mechanism, and then the muck temporary storage box can be moved according to the muck height, so as to achieve the effect of evenly feeding the muck, effectively solving the problems existing in the shield muck transportation in the prior art, such as difficult slag receiving, high labor consumption with multiple people cooperation, and serious slag dropping affecting environmental hygiene, etc.

[0008] Preferably, the bottom of the muck temporary storage box is of a slope structure, and the discharge port is located at the lowest point of the slope structure.

[0009] After adopting this technical solution, in order to enable the muck falling into the muck temporary storage box to smoothly move to the discharge port, the bottom of the muck temporary storage box is set as a slope structure. As the muck temporary storage box moves, the muck on the belt falls on different parts of the slope structure and finally reaches the discharge port located at the lowest point along the slope structure.

[0010] Preferably, a baffle cooperating with the muck temporary storage box is arranged on the belt rack.

[0011] After adopting this technical solution, after setting the slope structure, the muck may accumulate along the slope structure to the end of the muck temporary storage box that needs to extend above the muck truck, resulting in a large weight at the end of the muck temporary storage box and possibly affecting the stability of the device. Therefore, in order to improve the stability of the shield muck transportation device, a baffle cooperating with it is arranged on the belt rack. By the baffle, part of the muck is intercepted in the muck temporary storage box located below the belt rack, avoiding too much muck at the front end. At the same time, the discharge speed of the muck can also be controlled to avoid the discharge speed being too fast to adjust the position of the discharge port in time.

[0012] Preferably, the plane where the lowest point of the baffle is located is between the plane where the highest point of the slope structure is located and the plane where the lowest point of the slope structure is located, and the vertical distance from the highest point of the slope structure to the top of the muck temporary storage box is one-half to one-third of the depth of the deepest part of the muck temporary storage box.

[0013] After adopting this technical solution, such setting can ensure that there is enough space to store the redundant muck. When the baffle moves to contact with the slope structure, all the muck can be intercepted at the rear part of the muck temporary storage box, and at this time, the muck truck can be replaced.

[0014] Preferably, a second distance detection mechanism is arranged in front of the muck temporary storage box.

[0015] After adopting this technical solution, the second distance detection mechanism can detect the distance between the muck temporary storage box and the vehicle head, so that the muck temporary storage box can be moved from one end of the vehicle head to the other end, facilitating the uniform dumping of the muck in the muck temporary storage box into the transport vehicle and preventing excessive local accumulation of the muck on the vehicle.

[0016] Preferably, a cover body is arranged at the position corresponding to the discharge port on the outer bottom wall of the muck temporary storage box.

[0017] After adopting this technical solution, the discharge port is covered by the cover body to prevent muck from splashing.

[0018] Preferably, the telescopic mechanism includes a first linear module and a second linear module. The first linear module and the second linear module are respectively arranged on two support seats of the belt rack, and the sliding parts of the first linear module and the second linear module are respectively connected to both sides of the muck temporary storage box.

[0019] After adopting this technical solution, the cooperation of the first linear module and the second linear module can drive the muck temporary storage box to move back and forth.

[0020] Preferably, the feed port is located directly below the discharge end of the belt conveyor body, the length of the feed port is greater than the telescopic distance of the telescopic mechanism, and the width of the feed port is greater than the width of the belt.

[0021] Preferably, an electric valve is arranged at the discharge port.

[0022] After adopting this technical solution, the electric valve arranged at the discharge port can close the discharge port when replacing the muck truck, facilitating the replacement of the muck truck.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0024] 1. The present utility model arranges a telescopic mechanism under the belt conveyor body, and the telescopic mechanism is connected to the muck temporary storage box. The telescopic mechanism drives the muck temporary storage box to move, thereby realizing the movement of the muck discharge port. At the same time, the height of the muck at this position in the muck truck can be monitored according to the first distance detection mechanism, and the muck temporary storage box can be moved according to the height of the muck, so as to achieve the effect of uniform feeding of the muck, effectively solving the problems of difficult slag receiving, high labor consumption due to multiple people cooperation, and serious slag dropping affecting environmental sanitation in the existing shield muck transportation.

[0025] 2. During the existing shield tunneling construction process, the slag hopper on the muck truck serves as a storage container for the muck. Usually, after the first slag hopper is full, the shield operator needs to stop the belt, and the muck truck moves forward a distance equal to the length of one slag hopper towards the tunnel shaft, so that the middle position of the second slag hopper corresponds to the material discharge opening of the belt. And so on until the excavation of one ring of segments is completed. To reduce the labor intensity of the shield operator, the muck truck driver, and the muck watchman, the present utility model adds a temporary muck storage box at the material discharge opening of the belt rack, aiming to store the muck transported by the belt during the period when the muck truck changes the hopper in the temporary muck storage box, achieving the effect that the belt does not stop during shield tunneling and reducing the process of stopping the belt when the muck truck changes the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present utility model will be described by way of examples with reference to the accompanying drawings, where:

[0027] Figure 1 is a schematic structural diagram of the present utility model without a baffle;

[0028] Figure 2 is a schematic structural diagram of the present utility model with a baffle;

[0029] Figure 3 is a schematic structural diagram of the telescopic mechanism and the temporary muck storage box of the present utility model;

[0030] Wherein: 1 - belt rack, 2 - belt, 3 - temporary muck storage box, 4 - second distance detection mechanism, 5 - cover body, 6 - first linear module, 7 - slope structure, 8 - baffle, 9 - discharge port, 10 - second linear module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of them. Usually, the components of the embodiments of the present application described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present application.

[0032] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for differential description and should not be construed as indicating or implying relative importance.

[0033] The following will Figures 1 - 3 describe the present utility model in detail.

[0034] As Figure 1 shown, a shield muck transportation device includes a belt conveyor body. The belt conveyor body includes a belt rack 1 and a belt 2. It should be noted that the structure and function of the belt conveyor body are the same as those of the existing shield muck transportation belt conveyor mechanism. A telescopic mechanism is provided on the belt rack 1 at the discharge end of the belt conveyor body. A muck temporary storage box 3 with a feed inlet at the top is connected to the telescopic mechanism. The telescopic mechanism drives the muck temporary storage box 3 to move back and forth relative to the belt rack 1. A discharge port 9 is provided at the bottom of the muck temporary storage box 3. The width of the discharge port 9 needs to be smaller than the width of the muck truck to reduce the amount of leaked material. And a first distance detection mechanism for detecting the downward vertical distance is provided at the bottom of the muck temporary storage box 3 near the discharge port 9. In this embodiment, the first distance detection mechanism can be an infrared rangefinder. The distance from the muck delivered into the muck truck to the bottom of the muck temporary storage box 3 is detected by the infrared rangefinder. In one embodiment, the operator can manually start the telescopic mechanism to drive the muck temporary storage box 3 to move a certain distance according to the distance data monitored by the infrared rangefinder to achieve paving at each point in the muck truck; in another embodiment, the infrared rangefinder and the telescopic mechanism can also be electrically connected to the controller. When the infrared rangefinder transmits the detected height data to the controller in real time, the controller judges whether the distance reaches the standard for starting the telescopic mechanism according to the set distance threshold. If it has reached, the telescopic mechanism is automatically started to drive the muck temporary storage box 3 to move to the next position according to the set distance, and so on until the feeding of the entire muck truck is completed. In one embodiment, the feed inlet is located directly below the discharge end of the belt conveyor body, and the length of the feed inlet is greater than the telescopic distance of the telescopic mechanism, and the width of the feed inlet is greater than the width of the belt 2.

[0035] In one embodiment, as Figure 3As shown, the bottom of the slag temporary storage box 3 is a sloped structure 7, and the discharge port 9 is located at the lowest point of the sloped structure 7. In order to allow the slag falling into the slag temporary storage box 3 to move smoothly to the discharge port 9, the bottom of the slag temporary storage box 3 is set as a sloped structure 7. As the slag on the moving belt 2 of the slag temporary storage box 3 falls to different parts of the sloped structure 7, it finally follows the sloped structure 7 to reach the discharge port 9 at the lowest point and is discharged.

[0036] In one embodiment, if Figure 2 As shown, the belt frame 1 is provided with a baffle 8 that cooperates with the slag temporary storage box 3. After the slope structure 7 is provided, the slag may be accumulated along the slope structure 7 to the end of the slag temporary storage box that needs to be extended to various parts above the slag truck, resulting in a large weight at the end of the slag temporary storage box 3, which may affect the stability of the device. Therefore, in order to improve the stability of the shield slag transportation device, a baffle 8 that cooperates with it is provided on the belt frame 1. The width of the baffle 8 is equivalent to the width of the slag temporary storage box 3, so that it can be located in the slag temporary storage box 3, and the two side walls are in contact with the inner wall of the slag temporary storage box 3, but it does not affect its sliding; the baffle 8 can be a stainless steel plate with a thickness of 3cm to ensure that it has enough hardness to intercept excess slag, and part of the slag is intercepted in the slag temporary storage box 3 located below the belt 2 through the baffle 8 to avoid excessive slag at the front end, and at the same time, the slag discharge speed can be controlled to avoid excessive accumulation of slag due to the discharge speed being too fast and not being able to adjust the position of the discharge port 9 in time.

[0037] In one of the embodiments, the plane where the lowest point of the baffle 8 is located is located between the plane where the highest point of the sloped structure 7 is located and the plane where the lowest point of the sloped structure 7 is located (in this embodiment, the height of the lowest point of the baffle 8 is set so that when the baffle 8 moves to the middle of the slag storage box 3, the bottom of the baffle 8 abuts against the sloped structure 7), and the vertical distance from the highest point of the sloped structure 7 to the top of the slag storage box 3 is one-half to one-third of the deepest depth of the slag storage box 3 (one-half in this embodiment, for example, the vertical distance from the top of the slag storage box 3 to the lowest point of the sloped structure 7 is 2m, and the vertical distance from the top of the slag storage box 3 to the highest point of the sloped structure 7 is 1m), and the telescopic distance of the telescopic mechanism can also be set according to the movable length of the baffle 8. For example, when the telescopic mechanism reaches the maximum extension distance, the bottom of the baffle 8 just contacts a certain position in the middle of the sloped structure 7, thereby achieving the effect of intercepting the slag, which is convenient for replacing the slag truck. In other embodiments, in order to ensure the interception effect, the bottom of the baffle 8 can be set to an inclined structure that matches the slope of a certain position in the middle of the slope structure 7 to increase the contact surface between the baffle 8 and the slope structure.

[0038] In one embodiment, a second distance detection mechanism 4 is provided directly in front of the muck temporary storage box 3. The second distance detection mechanism 4 can be an infrared rangefinder like the first distance detection mechanism. The second distance detection mechanism 4 can detect the distance between the muck temporary storage box 3 and the vehicle head, so that the muck temporary storage box 3 can be moved from one end of the vehicle head to the other end. Specifically, in the prior art, the discharge end of the belt conveyor is usually installed on a bracket higher than the muck truck, so that the discharge port of the belt conveyor can be located above the muck truck. In the present utility model, since the muck temporary storage box 3 is provided below the belt rack 1, at this time, a second distance detection mechanism 4 is provided at a position where the muck temporary storage box 3 is lower than the vehicle head height and higher than the carriage height. By detecting the distance between the discharge port 9 of the muck temporary storage box 3 and the vehicle head through the second distance detection mechanism 4, it can be judged whether the feeding can be ended. For example, in the initial state, the muck truck driver moves the tail of the muck truck directly below the discharge port 9, and then when gradually moving the muck temporary storage box 3, the distance between the discharge port 9 and the vehicle head is detected through the second distance detection mechanism 4. When the detected distance is small, it means that it has moved close to the vehicle head, and the feeding can be stopped, thereby improving the accuracy.

[0039] In one embodiment, a cover body 5 is provided on the outer bottom wall of the muck temporary storage box 3 corresponding to the discharge port 9. The discharge port 9 is covered by the cover body 5 to prevent muck from splashing.

[0040] In one embodiment, the telescopic mechanism includes a first linear module 6 and a second linear module 10. The first linear module 6 and the second linear module 10 are respectively arranged on two support seats of the belt rack 1, and the sliding members of the first linear module 6 and the second linear module 10 are respectively connected to both sides of the muck temporary storage box 3. The first linear module 6 and the second linear module 10 cooperate to drive the muck temporary storage box 3 to move back and forth. It should be noted that the power of the first linear module 6 and the second linear module 10 needs to be set according to the weight of the muck temporary storage box 3 and the weight of the muck that the muck temporary storage box 3 can store, so as to ensure that it can drive the muck temporary storage box 3 filled with muck to move.

[0041] In one embodiment, an electric valve is provided at the discharge port 9. The electric valve provided at the discharge port 9 can close the discharge port 9 when replacing the muck truck, which is convenient for replacing the muck truck.

[0042] The above embodiments only represent the specific implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the protection scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the technical solution of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application.

Claims

1. A shield-driven slag transportation device, characterized in that: The invention comprises a belt conveyor body, wherein the belt conveyor body comprises a belt frame (1) and a belt, wherein a telescopic mechanism is arranged on the belt frame (1) at the discharge end of the belt conveyor body, wherein the telescopic mechanism is connected to a slag temporary storage box (3) having a feed port at the top, wherein a discharge port (9) is arranged at the bottom of the slag temporary storage box (3), and a first distance detection mechanism for detecting a downward vertical distance is arranged at the bottom of the slag temporary storage box (3) near the discharge port (9).

2. A shield-driven slag transportation device according to claim 1, characterized in that: The bottom of the slag temporary storage box (3) is a sloped structure (7), and the discharge port (9) is located at the lowest point of the sloped structure (7).

3. A shield-driven slag transportation device according to claim 2, characterized in that: The belt frame (1) is provided with a baffle (8) that cooperates with the slag temporary storage box (3); the baffle (8) is located inside the slag temporary storage box (3).

4. A shield-driven slag transportation device according to claim 3, characterized in that: The plane where the lowest point of the baffle (8) is located is located between the plane where the highest point of the sloped structure (7) is located and the plane where the lowest point of the sloped structure (7) is located, and the vertical distance from the highest point of the sloped structure (7) to the top of the slag temporary storage box (3) is one half to one third of the deepest depth of the slag temporary storage box (3).

5. A shield-driven slag transportation device according to any one of claims 1 to 4, characterized in that: A second distance detection mechanism (4) is arranged directly in front of the slag temporary storage box (3).

6. A shield-driven slag transportation device according to any one of claims 1 to 4, characterized in that: A cover body (5) is provided on the outer bottom wall of the slag temporary storage box (3) at a position corresponding to the discharge port (9).

7. A shield-driven slag transportation device according to any one of claims 1 to 4, characterized in that: The telescopic mechanism comprises a first linear module (6) and a second linear module (10), the first linear module (6) and the second linear module (10) are respectively arranged on two support seats of the belt frame (1), and the sliding parts of the first linear module (6) and the second linear module (10) are respectively connected to two sides of the slag temporary storage box (3).

8. A shield-driven slag transportation device according to any one of claims 1 to 4, characterized in that: The feed port is located directly below the discharge end of the belt conveyor body, and the length of the feed port is greater than the telescopic distance of the telescopic mechanism, and the width of the feed port is greater than the width of the belt.

9. A shield-driven slag transportation device according to any one of claims 1 to 4, characterized in that: An electric valve is provided at the discharge port (9).

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