Bentonite slurry filtering device of shield tunneling machine

Abstract

The utility model discloses a bentonite slurry filtering device of a shield tunneling machine, and relates to the technical field of tunnel construction machinery, the bentonite slurry filtering device comprises a device main body, a filtering mechanism is installed on the inner wall of the device main body, the filtering mechanism comprises a filtering net, a clamping plate, a limiting rod and a limiting spring, the filtering net is installed on the inner wall of the device main body, and the clamping plate is installed on the inner wall of the device main body. A clamping plate is installed on the outer wall of the filter screen, a limiting rod is installed on the inner wall of the clamping plate, a limiting spring is installed on the outer wall of the limiting rod, and a stirring anti-blocking mechanism is installed on the inner wall of the device body. According to the device disclosed by the utility model, the filter mechanism is arranged, the filter screen is connected with the device main body in a clamping manner through the clamping plate, and the limiting rod and the clamping plate form a telescopic structure through the limiting spring, so that when the device is used, the filter screen is arranged, so that the device can be used for filtering bentonite slurry and intercepting and filtering oversized stone fragments; the fineness of bentonite slurry is improved, the construction quality is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction machinery, in particular to a bentonite slurry filtering device for a shield machine. Background Art

[0002] The shield machine is a large-scale engineering machinery that integrates mechanical, electrical and hydraulic functions. It is mainly used for tunnel excavation. The bentonite of the shield machine is used to fill the gaps in the tunnel. During the shield construction process, the filling of bentonite can ensure the stability and safety of the tunnel. In order to ensure the viscosity, fineness and stable discharge filling of the bentonite slurry, a shield machine bentonite slurry filtration device is required.

[0003] The existing bentonite slurry filtering device for a shield machine has the problems of being unable to prevent blocking, unable to perform stirring and fusion, and unable to perform quantitative discharging during operation. Therefore, a bentonite slurry filtering device for a shield machine is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a bentonite slurry filtering device for a shield machine, so as to solve the problems that the existing bentonite slurry filtering device for a shield machine cannot prevent blockage, cannot perform stirring and fusion, and cannot perform quantitative discharging when in use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bentonite slurry filtering device for a shield machine, comprising a device body, a filtering mechanism is installed on the inner wall of the device body, the filtering mechanism comprises a filter screen, a clamping plate, a limit rod and a limit spring, a filter screen is installed on the inner wall of the device body, a clamping plate is installed on the outer wall of the filter screen, a limit rod is installed on the inner wall of the clamping plate, and a limit spring is installed on the outer wall of the limit rod.

[0006] The inner wall of the device body is provided with a stirring and anti-blocking mechanism.

[0007] A quantitative discharging mechanism is installed on the outer side wall of the device body.

[0008] Preferably, the filter screen is connected to the inner wall of the device body by a clamping plate, and the limiting rod forms a telescopic structure with the clamping plate through a limiting spring.

[0009] Preferably, the stirring anti-blocking mechanism includes a transmission motor, a stirring blade, a stirring bin, a cylinder and a material guide trough. The transmission motor is installed on the inner wall of the device body, the stirring blade is installed on the top of the transmission motor, the stirring bin is installed on the inner wall of the device body, the cylinder is installed on the inner wall of the stirring bin, and a material guide trough is opened at the bottom of the stirring bin.

[0010] Preferably, the transmission motor is welded to the bottom of the device body, and the cylinders are distributed in a circular array with the central axis of the mixing bin as the center.

[0011] Preferably, the quantitative discharging mechanism includes a discharging plate, a rotating shaft, a cover plate, a fixed sleeve, a limiting shaft and a reset spring. The outer wall of the device body is equipped with a discharging plate, the inner wall of the discharging plate is equipped with a rotating shaft, the outer wall of the rotating shaft is equipped with a cover plate, the outer wall of the discharging plate is equipped with a fixed sleeve, the inner wall of the fixed sleeve is equipped with a limiting shaft, and the outer wall of the limiting shaft is equipped with a reset spring.

[0012] Preferably, the cover plate forms a rotating structure with the discharge plate through a rotating shaft, and the discharge plates are distributed in a rectangular array with the central axis of the device body as the center.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a filtering mechanism, wherein the filter screen is connected to the device body through a clamping plate, and the limit rod forms a telescopic structure with the clamping plate through a limit spring. When the device is used, the setting of the filter screen enables the device to filter the bentonite slurry, intercept and filter the stone fragments that are too large in volume, thereby improving the fineness of the bentonite slurry, increasing the construction quality, and increasing the practicality of the device.

[0015] The utility model is provided with a stirring and anti-blocking mechanism, and the cylinder is closely fitted with the bottom of the filter screen. When the device is used, the driving motor is started to drive the stirring blade to rotate, so as to stir the bentonite slurry inside the device body, thereby improving the fusion degree of the slurry. Then, the cylinder is started to rise, and the filter screen is pushed up and lifted. Then, the cylinder is quickly dropped. The filter screen is pressed downward by the elastic force of the limit spring and the filter screen freely falls due to its own gravity, and collides with the device body, so that the filter screen vibrates, and the bentonite slurry input is driven to vibrate, thereby preventing the slurry from solidifying on the surface of the filter screen and causing blockage, thereby increasing the usability of the device.

[0016] The utility model provides a quantitative discharging mechanism, wherein the cover plate forms a rotating structure with the discharging plate through a rotating shaft, and the limit shaft forms a telescopic structure with a fixing sleeve through a reset spring. When the device is used, the cover plate is pulled to rotate and open with the rotating shaft as the center, and the filtered slurry is discharged from the guide groove to the discharging plate through the centrifugal force generated by the stirring of the stirring blades, thereby realizing discharging, and the discharging plates are distributed in a rectangular array with the central axis of the device body as the center, and the quantitative discharging is realized by controlling the opening and closing number of the cover plate, thereby increasing the usability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model from the front;

[0018] Figure 2 This is a schematic diagram of the structure of the filter mechanism of the utility model;

[0019] Figure 3 This is a structural schematic diagram of the stirring anti-blocking mechanism of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the quantitative discharging mechanism of the utility model.

[0021] In the figure: 1. device body; 2. filtering mechanism; 201. filter screen; 202. clamping plate; 203. limit rod; 204. limit spring; 3. stirring anti-blocking mechanism; 301. transmission motor; 302. stirring fan blade; 303. stirring bin; 304. cylinder; 305. guide trough; 4. quantitative discharging mechanism; 401. discharging plate; 402. rotating shaft; 403. cover plate; 404. fixing sleeve; 405. limit shaft; 406. reset spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0023] The following describes an embodiment of the utility model based on its overall structure.

[0024] See also Figure 1-4 A shield machine bentonite slurry filtering device comprises a device body 1, a filtering mechanism 2 is installed on the inner wall of the device body 1, the filtering mechanism 2 comprises a filter screen 201, a clamping plate 202, a limiting rod 203 and a limiting spring 204, a filter screen 201 is installed on the inner wall of the device body 1, a clamping plate 202 is installed on the outer wall of the filter screen 201, a limiting rod 203 is installed on the inner wall of the clamping plate 202, a limiting spring 204 is installed on the outer wall of the limiting rod 203, and the filter screen 201 is connected to the inner wall of the device body 1 through the clamping plate 202. The limit rod 203 is connected by a snap-fit ​​connection and forms a telescopic structure with the card plate 202 through a limit spring 204. Through the filter mechanism 2 set up, the filter net 201 is connected by a snap-fit ​​connection with the device body 1 through the card plate 202. The limit rod 203 is connected by a limit spring 204 and forms a telescopic structure with the card plate 202. When the device is in use, the setting of the filter net 201 enables the device to filter the bentonite slurry, intercept and filter the stone fragments that are too large, improve the fineness of the bentonite slurry, increase the construction quality, and increase the practicality of the device.

[0025] See also Figure 1-4A bentonite slurry filtering device for a shield machine, wherein a stirring anti-blocking mechanism 3 is installed on the inner wall of a device body 1, and the stirring anti-blocking mechanism 3 comprises a transmission motor 301, a stirring blade 302, a stirring bin 303, a cylinder 304 and a material guide trough 305. A transmission motor 301 is installed on the inner wall of the device body 1, and a stirring blade 302 is installed on the top of the transmission motor 301. A stirring bin 303 is installed on the inner wall of the device body 1, and a cylinder 304 is installed on the inner wall of the stirring bin 303. A material guide trough 305 is provided at the bottom of the stirring bin 303. The transmission motor 301 is welded to the bottom of the device body 1, and the cylinder 304 is distributed in a ring array with the central axis of the stirring bin 303 as the center. The stirring and anti-blocking mechanism 3, the cylinder 304 is tightly fitted with the bottom of the filter 201. When the device is used, the transmission motor 301 is started to drive the stirring blade 302 to rotate, and the bentonite slurry inside the device body 1 is stirred to improve the degree of slurry fusion, and then the cylinder 304 is started to rise, pushing the filter 201 to rise, and then the cylinder 304 is quickly dropped, and the filter 201 is squeezed downward by the elastic force of the limit spring 204 and the filter 201 falls freely due to its own gravity, and collides with the device body 1, so that the filter 201 vibrates, driving the bentonite slurry to vibrate, thereby preventing the slurry from solidifying on the surface of the filter 201 and causing blockage, thereby increasing the usability of the device.

[0026] See also Figure 1-4 A bentonite slurry filtering device for a shield machine, wherein a quantitative discharging mechanism 4 is installed on the outer wall of a device body 1, and the quantitative discharging mechanism 4 comprises a discharging plate 401, a rotating shaft 402, a cover plate 403, a fixing sleeve 404, a limiting shaft 405 and a reset spring 406. The outer wall of the device body 1 is installed with a discharging plate 401, the inner wall of the discharging plate 401 is installed with a rotating shaft 402, the outer wall of the rotating shaft 402 is installed with a cover plate 403, the outer wall of the discharging plate 401 is installed with a fixing sleeve 404, the inner wall of the fixing sleeve 404 is installed with a limiting shaft 405, the outer wall of the limiting shaft 405 is installed with a reset spring 406, the cover plate 403 forms a rotating structure with the discharging plate 401 through the rotating shaft 402, and the discharging plate 401 is installed with a fixing sleeve 404. The device is arranged in a rectangular array with the central axis of the device body 1 as the center. Through the quantitative discharging mechanism 4, the cover plate 403 and the discharging plate 401 form a rotating structure through the rotating shaft 402, and the limiting shaft 405 and the fixing sleeve 404 form a telescopic structure through the reset spring 406. When using the device, the cover plate 403 is pulled to rotate and open with the rotating shaft 402 as the center. The filtered slurry flows from the guide groove 305 to the discharging plate 401 through the centrifugal force generated by the stirring of the stirring blades 302 to realize discharging. The discharging plate 401 is arranged in a rectangular array with the central axis of the device body 1 as the center. By controlling the opening and closing number of the cover plate 403, quantitative discharging is realized, thereby increasing the usability of the device.

[0027] Working principle: When in use, first move the device to the desired position, and then connect the filter screen 201 to the device body 1 through the card plate 202. When using the device, the setting of the filter screen 201 enables the device to filter the bentonite slurry, intercept and filter the stone fragments that are too large, improve the fineness of the bentonite slurry, increase the construction quality, and increase the practicality of the device. Then, start the transmission motor 301 to drive the stirring fan blade 302 to rotate, stir the bentonite slurry inside the device body 1, and improve the degree of slurry fusion. Then, start the cylinder 304 to rise, push the filter screen 201 to rise, and then quickly drop the cylinder 304. The filter screen 201 is squeezed downward by the elastic force of the limit spring 204 and the filter screen 201 automatically The free fall of the body due to gravity collides with the device body 1, causing the filter screen 201 to vibrate, driving the bentonite slurry put in to vibrate, avoiding the slurry solidifying on the surface of the filter screen 201 and causing blockage, thereby increasing the usability of the device, and finally pulling the cover plate 403 to rotate and open it around the rotating shaft 402 as the center. The filtered slurry is stirred by the centrifugal force generated by the stirring blades 302, and flows from the guide trough 305 to the discharge plate 401 for discharge, thereby realizing discharge, and the discharge plate 401 is arranged in a rectangular array with the central axis of the device body 1 as the center. By controlling the opening and closing number of the cover plate 403, quantitative discharge is realized, thereby increasing the usability of the device, and thus completing the use process of the device. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bentonite slurry filtering device for a shield machine, comprising a device body (1), characterized in that: The inner wall of the device body (1) is provided with a filter mechanism (2), the filter mechanism (2) comprising a filter screen (201), a clamping plate (202), a limit rod (203) and a limit spring (204); the inner wall of the device body (1) is provided with a filter screen (201), the outer wall of the filter screen (201) is provided with a clamping plate (202), the inner wall of the clamping plate (202) is provided with a limit rod (203), and the outer wall of the limit rod (203) is provided with a limit spring (204); The inner wall of the device body (1) is provided with a stirring and anti-blocking mechanism (3); A quantitative discharging mechanism (4) is installed on the outer side wall of the device body (1).

2. A shield machine bentonite slurry filtering device according to claim 1, characterized in that: The filter screen (201) is connected to the inner wall of the device body (1) by means of a clamping plate (202), and the limiting rod (203) forms a telescopic structure with the clamping plate (202) via a limiting spring (204).

3. The bentonite slurry filtering device for a shield machine according to claim 1, characterized in that: The stirring anti-blocking mechanism (3) comprises a transmission motor (301), a stirring blade (302), a stirring chamber (303), a cylinder (304) and a material guide trough (305); the transmission motor (301) is installed on the inner wall of the device body (1); the stirring blade (302) is installed on the top of the transmission motor (301); the stirring chamber (303) is installed on the inner wall of the device body (1); the cylinder (304) is installed on the inner wall of the stirring chamber (303); and the material guide trough (305) is opened at the bottom of the stirring chamber (303).

4. A shield machine bentonite slurry filtering device according to claim 3, characterized in that: The transmission motor (301) is welded to the bottom of the device body (1), and the cylinders (304) are arranged in a circular array with the central axis of the stirring chamber (303) as the center.

5. The bentonite slurry filtering device for a shield machine according to claim 1, characterized in that: The quantitative discharging mechanism (4) comprises a discharging plate (401), a rotating shaft (402), a cover plate (403), a fixing sleeve (404), a limiting shaft (405) and a reset spring (406); the discharging plate (401) is mounted on the outer wall of the device body (1); the rotating shaft (402) is mounted on the inner wall of the discharging plate (401); the cover plate (403) is mounted on the outer wall of the rotating shaft (402); the fixing sleeve (404) is mounted on the outer wall of the discharging plate (401); the limiting shaft (405) is mounted on the inner wall of the fixing sleeve (404); and the reset spring (406) is mounted on the outer wall of the limiting shaft (405).

6. A shield machine bentonite slurry filtering device according to claim 5, characterized in that: The cover plate (403) forms a rotating structure with the discharge plate (401) via the rotating shaft (402), and the discharge plates (401) are arranged in a rectangular array with the central axis of the device body (1) as the center.

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