Slag collecting and cleaning device for inclined shaft TBM cutter head

Abstract

The utility model discloses an inclined shaft TBM cutterhead slag collecting and cleaning device which comprises a cutterhead, a slag collecting hopper (7) and a front shield (8), the cutterhead comprises a cutterhead center block (1) and a plurality of cutterhead side blocks (2), the cutterhead side blocks (2) are installed on the periphery of the cutterhead center block (1) in a surrounding mode, a bucket (3) is installed on the cutterhead side blocks (2), a discharging port of the bucket (3) is connected with the slag collecting hopper (7), and the slag collecting hopper (7) is connected with the front shield (8). A cleaning device (6) is fixedly installed on the back face of the cutterhead edge block (2) and located between the cutterhead edge block and the front shield (8). According to the utility model, the shutdown time of equipment caused by slag collection of the front shield can be greatly reduced, the utilization rate and the construction efficiency of TBM equipment are improved, and the labor intensity of slag removal operators is reduced at the same time.

Description

Technical Field

[0001] The utility model relates to TBM equipment, in particular to a slag collection and cleaning device for a TBM cutter head in an inclined shaft. Background Art

[0002] In TBM (full-face tunnel boring machine) construction, the slag removal process is one of the basic processes of TBM excavation. The slag removal method of flat-hole TBM tunnel construction is: the slag formed by rock breaking is unloaded into the collecting hopper after the bucket rotates to the top, and then transported out of the tunnel by the belt conveyor. However, the slag removal of inclined shaft TBM is different. Part of the slag can be unloaded into the collecting hopper by the bucket rotating to the top, and then transported out of the tunnel by the belt. The remaining slag is accumulated between the back of the cutterhead and the front shield due to the large inclination angle of the inclined shaft TBM equipment and the cutterhead, making it impossible for the bucket to collect it. During the TBM step change process, the slag that is not collected will leak into the inside of the telescopic shield and the tightening shield through the gap between the front shield stabilizer and the rock wall. The space there is small and it is extremely difficult to clean. A lot of manpower and time are required for manual cleaning, which seriously affects the efficiency of inclined shaft TBM construction. In addition, since the TBM cutterhead needs to spray water continuously during excavation, the water combines with the slag on the back of the cutterhead, causing the slag to clump and solidify, making it extremely difficult to clean. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the shortcomings, the utility model provides a slag cleaning device for the cutter head of an inclined shaft TBM, which has low manufacturing cost, is simple and convenient to install, and can improve the construction efficiency of the inclined shaft TBM equipment.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A slag collecting and cleaning device for a TBM cutterhead in an inclined shaft comprises a cutterhead, a slag collecting bucket and a front shield. The cutterhead comprises a cutterhead center block and a plurality of cutterhead side blocks. The plurality of cutterhead side blocks are mounted around the periphery of the cutterhead center block. A bucket is mounted on the cutterhead side block. The discharge port of the bucket is connected to the slag collecting bucket. A cleaning device is fixedly mounted on the back of the cutterhead side block and the cleaning device is located between the cutterhead side block and the front shield.

[0006] Preferably, the cleaning device comprises a fixing portion for connecting to the cutter disc edge block and a cleaning portion for cleaning slag collected on the back side of the cutter disc.

[0007] Preferably, the fixing part is provided with a plurality of bolt holes, and the fixing part is connected to the cutter head edge block by bolts, so that it is not only convenient to install and remove, and easy to replace after being worn, but also reliable to fix, so that the cutter head is not easy to rotate and fall off during the rotation process of excavation.

[0008] Preferably, the cleaning part comprises an arc-shaped bucket, and the installation angle of the arc-shaped bucket enables the debris in the arc-shaped bucket to slide into the debris collecting bucket by its own weight after the cleaning device rotates to the upper part along with the cutter disc.

[0009] Preferably, the opening of the arc-shaped bucket is 100-140°, preferably 120°.

[0010] Preferably, a plurality of the cleaning devices are symmetrically distributed and respectively installed on the back of a cutter disc side block to ensure stable operation of the cutter disc and to promptly and effectively clean the accumulated slag on the back of the cutter disc.

[0011] Preferably, the cleaning device is made of wear-resistant steel, which has low cost and simple structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model has a slag collecting and cleaning device for the cutterhead of the inclined shaft TBM, which is fixedly installed on the back of the cutterhead edge block, so that during the inclined shaft TBM excavation at a large inclination angle, the rock crushing and slag accumulated between the back of the cutterhead and the front shield caused by the cutterhead's rock breaking is fully disturbed, and the disturbed slag is collected in the slag collecting bucket by the cleaning device, and the cutterhead is idled for several times before the TBM excavation stops, and the cleaning device is used to collect all the slag as much as possible. Therefore, the utility model has reduced the accumulation of slag between the back of the cutterhead and the front shield by installing the cleaning device, reduced a large amount of slag cleaning human resources, and at the same time improved the equipment utilization rate of the inclined shaft TBM, ensuring the efficient construction of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a front view of the utility model of the inclined shaft TBM cutter head slag cleaning device.

[0016] Figure 2 It is a side view of the inclined shaft TBM cutter head and slag cleaning device of the utility model.

[0017] The symbols in the figure represent:

[0018] 1. Cutter disc center block; 2. Cutter disc side block; 3. Bucket; 4. Surface knife; 5. Side knife; 6. Cleaning device; 61. Bolt hole; 62. Arc bucket; 7. Slag collecting bucket; 8. Front shield. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1 , Figure 2 The utility model discloses a slag collecting and cleaning device for a cutter disc of a TBM in an inclined shaft. The cutter disc is composed of a cutter disc center block 1 and four cutter disc side blocks 2. The four cutter disc side blocks 2 are installed around the cutter disc center block 1. The cutter disc center block 1 is provided with a face cutter 4, and the cutter disc side blocks 2 are provided with a side cutter 5. The two cutters (face cutter 4 and side cutter 5) are used for squeezing and crushing rocks. A bucket 3 is installed on the cutter disc side block 2 to collect the rocks crushed by the cutter to the slag collecting bucket 7 and then transport them to the outside of the tunnel through a belt conveyor. The slag collecting bucket 7 is arranged in the middle of the cutter disc, and all the slag is collected in the slag collecting bucket 7. A cleaning device 6 is fixedly installed on the back of the cutter disc side block 2 by bolts, and the cleaning device 6 is located between the cutter disc side block 2 and the front shield 8. During the excavation process of the TBM equipment, the cleaning device 6 continuously disturbs the slag collected between the cutter disc side block 2 and the front shield 8, and guides the slag collected into the slag collecting bucket 7 to complete the collection. In this way, the utility model successfully reduces the slag collection on the back of the cutter head by setting the cleaning device 6, improves the utilization rate of the inclined shaft TBM equipment, effectively reduces the labor intensity of slag cleaning workers, and increases the construction efficiency of TBM equipment excavation.

[0023] In this embodiment, the cleaning device 6 includes a fixing portion for connecting with the cutter disc side block 2 and a cleaning portion for cleaning the slag collected on the back of the cutter disc. The fixing portion is provided with 10 M24 bolt holes 61, which are used to fix the cleaning device 6 on the conical panel on the back of the cutter disc and connect it with the cutter disc side block 2 by bolts. The cleaning device 6 is easy to install and disassemble, and is convenient for replacement of the cleaning device 6 after wear and tear. The cleaning device 6 is reliably fixed, so that it is not easy to rotate and fall off during the rotation of the cutter disc during excavation. The cleaning portion includes an arc-shaped bucket 62 with an opening of about 120°. When the cutter disc rotates, the arc-shaped bucket 62 of the cleaning device 6 is driven to rotate, thereby shoveling the slag between the cutter disc side block 2 and the front shield 8. After the slag shoveled by the cleaning device 6 rotates to the upper part with the cutter disc, it slides into the slag collecting bucket 7 by the weight of the slag during the rotation process, and can be transported out of the hole by the belt.

[0024] In this embodiment, the cleaning devices 6 are symmetrically distributed and installed on the backs of the four cutter head side blocks 2 respectively.

[0025] In this embodiment, the installation angle of the cleaning device 6 should be simulated according to the excavation angle of the inclined shaft TBM, so that it can guide the slag into the slag collecting bucket 7.

[0026] In this embodiment, the four cleaning devices 6 are all made of wear-resistant steel, which has low cost, simple structure and significant effect.

[0027] The utility model discloses a device for cleaning slag collected by cutter head of inclined shaft TBM, which can greatly reduce the equipment downtime caused by slag collection on front shield, improve the utilization rate of TBM equipment and construction efficiency, and at the same time reduce the labor intensity of slag cleaning operators, using machinery instead of manpower.

[0028] The cleaning device 6 in the inclined shaft TBM cutter head slag cleaning device of the utility model is suitable for all inclined shaft TBM equipment.

[0029] After the utility model of the inclined shaft TBM cutterhead slag cleaning device was put into test operation, the slag collection between the cutterhead edge block 2 and the front shield 8 was effectively reduced during the upward excavation of the inclined shaft TBM, and the effect was remarkable.

[0030] The above is only a specific implementation scheme of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the field can make many possible changes and modifications to the technical scheme of the utility model by using the technical content disclosed above without departing from the scope of the technical scheme of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical scheme of the utility model shall fall within the protection scope of the technical scheme of the utility model.

Claims

1. A slag collecting and cleaning device for a TBM cutterhead in an inclined shaft, comprising a cutterhead, a slag collecting bucket (7), and a front shield (8), wherein the cutterhead comprises a cutterhead center block (1) and a plurality of cutterhead side blocks (2), wherein the plurality of cutterhead side blocks (2) are mounted around the outer periphery of the cutterhead center block (1), a bucket (3) is mounted on the cutterhead side block (2), and a discharge port of the bucket (3) is connected to the slag collecting bucket (7), wherein the device is characterized in that: A cleaning device (6) is fixedly mounted on the back of the cutter disc side block (2), and the cleaning device is located between the cutter disc side block and the front shield (8).

2. According to the inclined shaft TBM cutterhead slag cleaning device of claim 1, it is characterized by: The cleaning device (6) comprises a fixing portion for connecting to the cutter disc edge block (2) and a cleaning portion for cleaning slag collected on the back side of the cutter disc.

3. The inclined shaft TBM cutterhead slag cleaning device according to claim 2 is characterized by: A plurality of bolt holes (61) are provided on the fixing portion, and the fixing portion is connected to the cutter head side block (2) by means of bolts.

4. The inclined shaft TBM cutterhead slag cleaning device according to claim 2 is characterized by: The cleaning part comprises an arc-shaped bucket (62). The installation angle of the arc-shaped bucket (62) enables the cleaning device to rotate to the upper part along with the cutter disc, and the slag in the arc-shaped bucket slides into the slag collecting bucket by its own weight.

5. The inclined shaft TBM cutterhead slag cleaning device according to claim 4 is characterized by: The opening of the arc-shaped bucket (62) is 100-140°.

6. The inclined shaft TBM cutterhead slag cleaning device according to claim 1 is characterized by: The plurality of cleaning devices (6) are symmetrically distributed and respectively installed on the back of a blade disc edge block (2).

7. The inclined shaft TBM cutterhead slag cleaning device according to any one of claims 1 to 6, characterized in that: The cleaning device (6) is made of wear-resistant steel.

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