Ballast discharging device for tunnel construction

Abstract

The utility model relates to the technical field of muck discharging equipment, in particular to a muck discharging device for tunnel construction, which comprises an obliquely designed shell and a shaft body rotating on the axis of the shell, an auger blade is spirally arranged on the outer wall of the shaft body, an assembly sleeve is slidably mounted on the inner wall of the shell on the periphery of the shaft body, a gap is reserved between the inner wall of the assembly sleeve and the outer wall of the auger blade, and the gap is used for downward flowing of viscous muck; the material receiving box is communicated with the bottom end of the shell and is used for collecting the graded viscous muck; a driver for controlling the shaft body to rotate is installed on the outer shell, the outer diameter of the auger blade is gradually reduced from low to high along the axis of the outer shell, the inner wall of the assembling sleeve is designed to be conical, the inner diameter of the assembling sleeve is gradually reduced from low to high along the axis of the outer shell, and the viscous muck and crushed rock can be effectively separated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of muck discharge equipment, specifically is muck discharge device for tunnel construction. BACKGROUND

[0002] The muck discharge device in tunnel construction is a special equipment system for efficiently and safely transporting the waste (collectively referred to as "muck material") such as spoil, broken stone and mud slurry generated in the tunnel excavation process to the outside of the hole and completing temporary stacking or resource processing. It is one of the core links of tunnel construction and directly affects the project progress, cost control and construction safety.

[0003] Different construction methods are used in different environments, different muck discharge devices are used, such as the cooperation of a muck scraper and a mine car, and when composite strata such as soft and hard strata are encountered, the generated cohesive spoil and fine broken rock need to be graded. However, the traditional vibrating screen in the prior art is prone to blockage when processing cohesive spoil (such as shield sludge), and the grading accuracy is low. UTILITY MODEL CONTENT

[0004] The utility model provides muck discharge device for tunnel construction, can effectively realize the separation of cohesive spoil and broken rock.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The muck discharge device for tunnel construction comprises:

[0007] The shell is designed to be inclined, and the shaft body rotates on the axis thereof; the shaft body is spirally provided with a dragon blade on the outer wall thereof, the inner wall of the assembly sleeve is slidably installed on the outer wall of the shell, a gap is left between the inner wall of the assembly sleeve and the outer wall of the dragon blade, and the gap is used for the downward flow of the cohesive spoil; the material receiving box is in communication with the bottom end of the shell, and the material receiving box is used for collecting the graded cohesive spoil; and the shell is provided with a driver for controlling the rotation of the shaft body.

[0008] Optionally, the outer diameter of the dragon blade gradually decreases from low to high along the axis of the shell, the inner wall of the assembly sleeve is designed to be conical, and the inner diameter of the assembly sleeve gradually decreases from low to high along the axis of the shell.

[0009] Optionally, the inside of the shaft body is designed to be hollow, a plurality of drainage holes are formed in the shaft body, the drainage holes face the outer wall of the dragon blade, a pipeline is fixedly installed on the shell, one end of the pipeline penetrates into the inside of the shell and is rotationally connected to the bottom end of the shaft body, the inside of the pipeline and the inside of the shaft body are in communication, and the pipeline is associated with an external pump source.

[0010] Optionally, the outer wall of the shell is provided with a guide groove along its axial direction, the outer wall of the assembly sleeve is fixedly provided with a limiting block, the limiting block is slidingly arranged in the guide groove, and a pneumatic assembly for controlling the sliding of the limiting block is arranged on the shell.

[0011] Optionally, the outer wall of the assembly sleeve is provided with a blanking port, the outer wall of the shell is fixedly provided with a feeding bucket, the output end of the feeding bucket is located in the blanking port, the outer edge frame of the output end of the feeding bucket is smaller than the inner edge frame of the blanking port, and the sliding of the assembly sleeve does not interfere with the output of the feeding bucket.

[0012] Optionally, a receiving cylinder in communication with the top end of the shell is arranged, the inner diameter of the receiving cylinder is greater than the outer diameter of the shell, the top end of the assembly sleeve penetrates into the receiving cylinder, the lowest part of the receiving cylinder is provided with a discharging port, and a servo motor is arranged on the receiving cylinder and the output end of the servo motor is in transmission connection with the top end of the shaft body.

[0013] Optionally, a retaining frame is arranged in the receiving box, the retaining frame is lower than the lowest part of the shell, an elastic polyurethane screen is arranged in the retaining frame.

[0014] Optionally, the scanning section of the Longji blade is isosceles trapezoidal, and the outermost edge of the Longji blade is rounded.

[0015] Compared with the prior art, the tunnel construction muck discharging device has the following beneficial effects: when the muck and the cohesive slag enter the inside of the shell and are conveyed upward by the Longji blade, the cohesive slag can flow downward through the gap, and the gap can block the downward passing of the broken rock, so that the gap can separate the broken rock and the cohesive slag, so that the broken rock is discharged from the shell, and the cohesive slag enters the inside of the receiving box for collection, and the sliding of the assembly sleeve can generate a relative force between the Longji blade and the assembly sleeve, and the excessive residual cohesive slag in the inner wall of the Longji blade or the assembly sleeve can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the external three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic view of the right view structure of the utility model; Figure 1

[0018] Figure 3 It is a schematic view of the structure of the utility model along the A-A section; Figure 2

[0019] Figure 4 It is a schematic view of the internal three-dimensional structure of the utility model;

[0020] ​​Figure 5 It is a three-dimensional structure schematic view of the Long Jie blade, the assembling sleeve and the shell in the utility model.

[0021] In the figure: 1, shell; 2, receiving cylinder; 3, feeding bucket; 4, pipeline; 5, receiving box; 6, assembling sleeve; 7, shaft body; 8, deformation screen; 9, limiting block; 11, guide groove; 12, discharging port. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figures 1 to 5 The utility model provides a kind of technical scheme: tunnel construction is discharged with device, including:

[0024] Shell 1 and shaft body 7 rotating on its axis are designed to be inclined;Shaft body 7 outer wall has Long Jie blade, the inner wall of shell 1 at the periphery of shaft body 7 is slidably installed with assembling sleeve 6, there is gap between the inner wall of assembling sleeve 6 and the outer wall of Long Jie blade, and the gap is used for the downward flow of viscous slag;Receiving box 5 is communicated with the bottom end of shell 1, and receiving box 5 is used to collect graded viscous slag;Drive for controlling the rotation of shaft body 7 is installed on shell 1.

[0025] In the prior art, the vibrating screen of transmission is easy to cause the blockage of vibrating screen when separating broken rock and viscous slag due to the flowability and viscosity of viscous slag, resulting in low grading efficiency, and in the case, when muck and viscous slag enter the inside of shell 1 and are transported upward by Long Jie blade, viscous slag will flow downward through the gap due to the rotation of Long Jie blade and gravitational potential energy, and the gap will block the downward passing of broken rock, so that the gap can separate broken rock and viscous slag, so that broken rock is discharged from shell 1, and viscous slag enters receiving box 5 to be collected, and secondly, the sliding of assembling sleeve 6 can generate relative force between Long Jie blade and assembling sleeve 6, so that excessive viscous slag can be avoided to remain on the inner wall of Long Jie blade or assembling sleeve 6.

[0026] More preferably, the outer diameter of Long Jie blade gradually decreases from low to high along the axis of shell 1, the inner wall of assembling sleeve 6 is designed to be conical, and the inner diameter of assembling sleeve 6 gradually decreases from low to high along the axis of shell 1, please refer to Figures 3 to 5In the embodiment, the gap between the assembly sleeve 6 and the dragon blade gradually reduces from low to high along the axis of the shell 1, so that the interception ability of the shell 1 is gradually improved. In addition, the broken rock is possibly wrapped with sticky sludge, and the gradually reduced gap helps to separate or reduce the sticky sludge on the broken rock.

[0027] On the basis of the gap-reducing embodiment, the shaft body 7 is hollow, a plurality of drainage holes are formed in the shaft body 7 and face the outer wall of the dragon blade, the shell 1 is fixedly provided with a pipeline 4, one end of the pipeline 4 penetrates into the shell 1 and is rotationally connected to the bottom end of the shaft body 7, the pipeline 4 is in communication with the inside of the shaft body 7, and the pipeline 4 is associated with an external pump source. In the embodiment, the specific structure of the pressure relief hole is not shown. In order to avoid the sticky sludge remaining on the inner wall of the assembly sleeve 6 and the outer wall of the dragon blade, an impact water flow is released to the inner wall of the assembly sleeve 6 or the outer wall of the dragon blade by the pressure relief hole, so as to complete the cleaning and protection of the two, reduce the remaining sticky sludge, and improve the flow performance of the sticky sludge.

[0028] On the basis of the gap-reducing embodiment, a guide groove 11 is formed in the outer wall of the shell 1 along the axial direction thereof, a limiting block 9 is fixedly installed on the outer wall of the assembly sleeve 6, the limiting block 9 is slidingly installed in the guide groove 11, and a pneumatic assembly for controlling the sliding of the limiting block 9 is installed on the shell 1. In the embodiment, when the assembly sleeve 6 can be finely adjusted and the shaft body 7 and the dragon blade are in a stationary state, the assembly sleeve 6 is displaced relative to the dragon blade at this time, so as to adjust the gap and adapt to different classification requirements.

[0029] Further, a feeding port 12 is formed in the outer wall of the assembly sleeve 6, and a feeding hopper 3 is fixedly installed on the outer wall of the shell 1. The output end of the feeding hopper 3 is located in the feeding port 12, the outer edge frame of the output end of the feeding hopper 3 is smaller than the inner edge frame of the feeding port 12, and the sliding of the assembly sleeve 6 does not interfere with the output of the feeding hopper 3.

[0030] Further, a receiving cylinder 2 is in communication with the top end of the shell 1, the inner diameter of the receiving cylinder 2 is greater than the outer diameter of the shell 1, the top end of the assembly sleeve 6 penetrates into the receiving cylinder 2, a discharging port is formed in the lowest part of the receiving cylinder 2, and a servo motor is installed on the receiving cylinder 2. The output end of the servo motor is in transmission connection with the top end of the shaft body 7.

[0031] On the basis of the above embodiment, a retaining frame is installed in the receiving box 5, the retaining frame is lower than the lowest part of the shell 1, a deformed screen 8 is installed in the retaining frame, the deformed screen 8 is an elastic polyurethane screen, and please refer to Figure 4In the embodiment, the elastic polyurethane screen replaces the conventional metal screen, uses the flexibility to reduce adhesion, automatically cleans the blockage through elastic deformation, and can also increase the inclination angle of the screen surface, uses gravity to accelerate the material to slide down, and reduces accumulation.

[0032] Further, the scanning section of the Jiaolong blade is isosceles trapezoidal, two inclined outer walls of the blade can improve the flowability of the viscous sludge and reduce adhesion, and the outermost edge of the Jiaolong blade is smoothly processed to avoid hard damage between the assembling sleeve 6 and the outermost edge, for example, when the broken rock is stuck in the gap.

[0033] Through the cooperation of the above structures, the separation of the viscous sludge and the broken rock can be effectively realized.

[0034] The standard parts used in the embodiment can be directly purchased from the market, and the non-standard structural parts according to the description and the drawings can also be directly processed according to the existing technical knowledge without doubt, and the connection mode of each part adopts the mature conventional means in the existing technology, and the machinery, parts and equipment adopt the conventional models in the existing technology, so the specific description is not made here.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A muck discharge device for tunnel construction, characterized by: The utility model relates to a kind of sludge separating and classifying device, including: inclined design shell (1) and shaft (7) rotating on its axis; The outer wall of the shaft (7) is spirally provided with a dragon leaf, and the inner wall of the shell (1) is slidably provided with an assembly sleeve (6) at the periphery of the shaft (7). A gap is left between the inner wall of the assembly sleeve (6) and the outer wall of the dragon leaf, which is used for the downward flow of viscous sludge. A receiving box (5) is communicated with the bottom end of the shell (1), which is used to collect the classified viscous sludge. A drive is installed on the shell (1) to control the rotation of the shaft (7).

2. The tunnel construction muck removal device of claim 1, wherein: The outer diameter of the dragon leaf gradually decreases from low to high along the axis of the shell (1), the inner wall of the assembly sleeve (6) is designed as a taper, and the inner diameter of the assembly sleeve (6) gradually decreases from low to high along the axis of the shell (1).

3. The tunnel construction debris removal device of claim 2, wherein: The inside of the shaft (7) is designed as a hollow, a plurality of drainage holes are provided on the shaft (7), the drainage holes are directed towards the outer wall of the dragon leaf, a pipeline (4) is fixedly installed on the shell (1), one end of the pipeline (4) penetrates into the inside of the shell (1) and is rotatably connected with the bottom end of the shaft (7), the inside of the pipeline (4) is in communication with the inside of the shaft (7), and the pipeline (4) is associated with an external pump source.

4. The tunnel construction debris removal device of claim 2, wherein: A guide groove (11) is provided on the outer wall of the shell (1) along the axial direction, a limiting block (9) is fixedly installed on the outer wall of the assembly sleeve (6), the limiting block (9) is limitingly and slidably installed in the inside of the guide groove (11), and a pneumatic assembly is installed on the shell (1) to control the sliding of the limiting block (9).

5. The tunnel construction debris removal device of claim 4, wherein: A material falling port (12) is provided on the outer wall of the assembly sleeve (6), a feeding bucket (3) is fixedly installed on the outer wall of the shell (1), the output end of the feeding bucket (3) is located in the inside of the material falling port (12), the outer edge frame of the output end of the feeding bucket (3) is smaller than the inner edge frame of the material falling port (12), and the sliding of the assembly sleeve (6) does not interfere with the output of the feeding bucket (3).

6. The tunnel construction debris removal device of claim 2, wherein: A receiving cylinder (2) is communicated with the top end of the shell (1), the inner diameter of the receiving cylinder (2) is greater than the outer diameter of the shell (1), the top end of the assembly sleeve (6) penetrates into the inside of the receiving cylinder (2), a discharging port is provided at the lowest part of the receiving cylinder (2), a servo motor is installed on the receiving cylinder (2), and the output end of the servo motor is in transmission connection with the top end of the shaft (7).

7. The tunnel construction mucking device according to any one of claims 1-6, characterized in that: A retaining frame is installed in the inside of the receiving box (5), the retaining frame is lower than the lowest part of the shell (1), a deformation screen (8) is installed in the retaining frame, and the deformation screen (8) is an elastic polyurethane screen.

8. The tunnel construction debris removal device of claim 7, wherein: The scanning cross section of the dragon leaf is isosceles trapezoidal, and the outermost edge of the dragon leaf is smoothly processed.

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