A full-face cutting rectangular pipe jacking machine and its cutting head

Abstract

The present invention discloses a full-section cutting rectangular pipe roof machine and its cutter head, which includes a first driving device, a second driving device, a cutter head and a gear set. The gear set includes a planet gear and an external gear ring that are used in cooperation. The cutter head is a three-spoke cutter head. The first driving device drives the cutter head to rotate self-rotationally. The cutter head is arranged on the planet gear. The second driving device is connected to the gear set to drive the cutter head to rotate revolutionally. The cutter head rotates both self-rotationally and revolutionally, so that the cutting profile is simulated into a square. The cutter head of this full-section cutting rectangular pipe roof machine adopts a three-spoke cutter head and is driven by a planetary driving device, and can perform both revolution and self-rotation movements. When the revolution and self-rotation angular velocities are in a certain proportion, the cutting profile can be simulated into a square, and the cutting rate reaches more than 99%, achieving the effect of full-section cutting of the soil body, being able to realize a square cutting profile, solving the problem of incomplete rectangular cutting, and truly achieving the effect of full-section cutting of the soil body.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel boring equipment, and in particular to a full-face cutting rectangular pipe roof machine and its cutter head. Background Art

[0002] With the advancement of urbanization, the ground resources and developable space are increasingly restricted, and the development of underground space is an inevitable trend. The problems encountered in the urban underground construction process are becoming increasingly complex, and the large-section shallow-buried underground passage projects are increasing day by day, such as crossing busy urban roads, existing railways, various obstacles, etc., and the requirements for the ground environment are becoming increasingly strict. The full-face cutting rectangular pipe roof machine is mainly used for underground tunnel and culvert construction. Traditional pipe roof machines can only cut out a circular working section, and are not suitable for the construction of underground tunnels and culverts with special-shaped sections such as rectangular and horseshoe-shaped sections.

[0003] At present, non-circular tunneling machines suitable for the construction of underground tunnels and culverts with special-shaped sections are all provided with a large cutter head and a plurality of small cutter heads.

[0004] The defects of the existing non-circular tunneling machines are as follows: the rotation axes of the large cutter head and the small cutter heads are parallel, the cutting ratio of the special-shaped section cannot reach 100%, and true full-face cutting cannot be achieved, which makes it difficult to control the earth pressure on the excavation surface during the construction process of the tunneling machine, and it is easy to cause construction quality problems such as ground surface deformation. Moreover, there will be uncut soil between the large cutter head and each small cutter head during the tunneling construction, which makes the tunneling machine bear a large front-end resistance, reduces the construction efficiency, and the increase of the tunneling resistance also requires a greater jacking force to make the tunneling machine move forward, thereby increasing the configuration cost of the main jack cylinders and inevitably increasing the cost of the working shaft.

[0005] Therefore, how to provide a cutter head of a full-face cutting rectangular pipe roof machine to achieve a square cutting profile is a technical problem that needs to be solved urgently by those skilled in the art at present. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a cutter head of a full-face cutting rectangular pipe roof machine to achieve a square cutting profile. Another purpose of the present invention is to provide a full-face cutting rectangular pipe roof machine adopting the above-mentioned cutter head of the full-face cutting rectangular pipe roof machine.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A cutter head of a full-face cutting rectangular pipe roof machine, comprising a first driving device, a second driving device, a cutter head and a gear set,

[0009] The gear set includes a planetary gear and an external gear ring that are used in cooperation,

[0010] The cutter head is a three-spoke cutter head, and the first driving device drives the cutter head to rotate self.

[0011] The cutter head is arranged on the planetary gear, and the second driving device is connected to the gear set to drive the cutter head to revolve.

[0012] The cutter head rotates self and revolves simultaneously, so that the cutting profile is simulated into a square.

[0013] Preferably, the first driving device and the second driving device are motors.

[0014] The present invention also provides a full-face cutting rectangular pipe shed machine, including:

[0015] A machine head, which is the machine head of the full-face cutting rectangular pipe shed machine as described in any one of the above;

[0016] A housing, on which the machine head is arranged;

[0017] Pipe sections, which are connected to the end of the housing;

[0018] A frame, on which a propulsion device for pushing the machine head is arranged, and the propulsion device is arranged at the end of the pipe section.

[0019] Preferably, the above full-face cutting rectangular pipe shed machine further includes a slag discharging device, which is built in the housing and the pipe sections,

[0020] and is located at the bottom of the housing and the pipe sections.

[0021] Preferably, the above slag discharging device is screw slag discharging or slurry pipeline slag discharging.

[0022] Preferably, the above full-face cutting rectangular pipe shed machine further includes a portal sealing device, which is arranged on the outer wall of the housing.

[0023] Preferably, the above full-face cutting rectangular pipe shed machine includes a front shield and a tail shield,

[0024] Four rectification cylinders are arranged at the hinge joint of the front shield and the tail shield, and are distributed diagonally to perform rectification in the up, down, left and right directions.

[0025] When rectification or alignment is required, lock the rectification cylinders on one side as the turning axis, and control the extension amount of the rectification cylinders on other sides to perform rectification and alignment.

[0026] Preferably, the above pipe sections are multiple, and the housing and the pipe sections, and the pipe sections and the pipe sections are connected by bolts or welding.

[0027] The cutter head of the full-section cutting rectangular pipe roof machine provided by the present invention includes a first driving device, a second driving device, a cutter head and a gear set. The gear set includes a planetary gear and an external gear ring used in cooperation. The cutter head is a three-spoke cutter head. The first driving device drives the cutter head to rotate self. The cutter head is arranged on the planetary gear. The second driving device is connected to the gear set to drive the cutter head to revolve. The cutter head rotates and revolves simultaneously, so that the cutting profile is simulated into a square.

[0028] The cutter head of the full-section cutting rectangular pipe roof machine provided by the present invention adopts a three-spoke cutter head and is driven by a planetary driving device, which can revolve and rotate simultaneously. When the revolution angular velocity and the rotation angular velocity are in a certain proportion, the cutting profile can be simulated into a square, and the cutting rate reaches more than 99%, achieving the effect of full-section cutting of soil body, realizing a square cutting profile, solving the problem of incomplete rectangular cutting, and truly achieving the effect of full-section cutting of soil body. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic structural diagram of the cutter head of the full-section cutting rectangular pipe roof machine provided by the embodiment of the present invention;

[0031] Figure 2 It is a schematic structural diagram of the cutter head of the full-section cutting rectangular pipe roof machine provided by the embodiment of the present invention applied to the full-section cutting rectangular pipe roof machine.

[0032] Above Figure 1-2 Among them:

[0033] Cutter head 1, housing 2, gear set 3, planetary gear 31, external gear ring 32, second driving device 4, portal seal device 5, slag discharge device 6, pipe joint 7, propulsion device 8. Detailed Embodiments

[0034] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0035] Please refer to Figure 1 and Figure 2 , Figure 1 which are the schematic structural diagrams of the head of the full-section cutting rectangular pipe roof machine provided by the embodiments of the present invention; Figure 2 which is the schematic structural diagram of the head of the full-section cutting rectangular pipe roof machine provided by the embodiments of the present invention applied to the full-section cutting rectangular pipe roof machine.

[0036] The head of the full-section cutting rectangular pipe roof machine provided by the embodiments of the present invention includes a first driving device, a second driving device 4, a cutter head 1 and a gear set 3. The gear set 3 includes a planetary gear 31 and an external gear ring 32 that are used in cooperation. The cutter head 1 is a three-spoke cutter head. The first driving device drives the cutter head 1 to rotate self. The cutter head 1 is arranged on the planetary gear 31. The second driving device 4 is connected to the gear set 3 to drive the cutter head 1 to rotate around the center. The simultaneous rotation and revolution of the cutter head 1 make the cutting profile simulate a square.

[0037] The head of the full-section cutting rectangular pipe roof machine provided by the embodiments of the present invention adopts a three-spoke cutter head and is driven by a planetary driving device, which can rotate and revolve simultaneously. When the revolution and self-rotation angular velocities are in a certain proportion, the cutting profile can simulate a square, and the cutting rate reaches more than 99%, achieving the effect of full-section cutting of the soil body, realizing a square cutting profile, solving the problem of incomplete rectangular cutting, and truly achieving the effect of full-section cutting of the soil body.

[0038] Among them, the first driving device and the second driving device 4 are motors.

[0039] The embodiments of the present invention also provide a full-section cutting rectangular pipe roof machine, including:

[0040] a head, which is the head of the full-section cutting rectangular pipe roof machine described in any of the above embodiments;

[0041] a housing 2, on which the head is arranged;

[0042] a pipe section 7, which is connected to the end of the housing 2;

[0043] a frame, on which a propulsion device 8 for pushing the head is arranged, and the propulsion device 8 is arranged at the end of the pipe section 7.

[0044] Specifically, the above full-section cutting rectangular pipe roof machine further includes a slag discharge device 6, which is built in the housing 2 and the pipe section 7 and is located at the bottom of the housing 2 and the pipe section 7. The slag discharge device 6 is a spiral slag discharge or a mud pipeline slag discharge.

[0045] Specifically, the above full-section cutting rectangular pipe roof machine further includes a portal sealing device 5, which is arranged on the outer wall of the housing 2.

[0046] Specifically, the housing 2 adopts an automatic guiding system to realize the deviation correction and guiding function of the equipment. The above full-face cutting rectangular pipe jacking machine includes a front shield and a tail shield. Four deviation correction cylinders are arranged at the hinge joint between the front shield and the tail shield, distributed diagonally, for deviation correction in the up, down, left, and right directions. When deviation correction or steering is required, lock the deviation correction cylinders on one side as the turning axis, and control the extension of the deviation correction cylinders on other sides for deviation correction and steering.

[0047] Specifically, there are multiple pipe segments 7 above. The housing 2 is connected to the pipe segments 7, and between the pipe segments 7 by bolts or welding.

[0048] The full-face cutting rectangular pipe jacking machine provided by the embodiment of the present invention is a complete set of equipment for a full-face cutting rectangular pipe jacking machine. This pipe jacking machine can be used for long-distance construction and can expand the applicable range of the pipe jacking machine.

[0049] The full-face cutting rectangular pipe jacking machine provided by the embodiment of the present invention uses a three-spoke cutter head driven by a planetary drive device, which can rotate both around the sun and on its own axis. When the angular velocities of the revolution and the rotation are in a certain proportion, the cutting profile can be simulated into a square, and the cutting rate reaches more than 99%, achieving the effect of full-face cutting of the soil body; optimizing the spatial layout of the cutting tools to make it have strong cutting ability and compressive ability; at the same time, changing the tool type can adapt to different geological conditions. Generally, cutting tools and scraping tools for soft soil are used in soft soil strata, and hob tools for hard rock are generally used in hard rock strata.

[0050] The full-face cutting rectangular pipe jacking machine provided by the embodiment of the present invention uses an automatic guiding system to automatically collect, transmit, and process measurement data, and visualize the attitude deviation of the pipe jacking in real time.

[0051] The full-face cutting rectangular pipe jacking machine provided by the embodiment of the present invention is provided with four deviation correction cylinders at the hinge joint between the front shield and the tail shield, distributed diagonally, which can play a role in deviation correction in the up, down, left, and right directions; according to the measurement results of the guiding system, when deviation correction or steering is required, lock the deviation correction cylinders on one side as the turning axis, and control the extension of the deviation correction cylinders on other sides to realize the deviation correction and steering function of the equipment.

[0052] Select the slag discharge method according to the size of the pipe jacking machine and the cutting section size. Currently, the slag discharge methods include: slurry discharge through the slurry pipeline in the slurry balance mode; slag discharge through the screw conveyor in the earth pressure balance mode; slurry discharge through the pipeline in the high-concentration slurry mode, etc.

[0053] In specific implementation, the full-face cutting rectangular pipe jacking machine provided by the embodiment of the present invention mainly consists of a cutter head 1, a housing 2, a gear set 3, a second drive device 4, a portal sealing device 5, a slag discharge device 6, a pipe segment 7, and a propulsion device 8.

[0054] Among them, the cutter head 1 is connected to the gear set 3; the gear set 3 is composed of a planetary gear 31 and an external gear ring 32; the planetary gear 31 is connected to the cutter head 1, and the cutter head 1 is a three-spoke cutter head; the second driving device 4 is connected to the gear set 3; inside the housing 2, there are the gear set 3, the second driving device 4, and the slag discharging device 6; the pipe section 7 is connected to the housing 2; the propulsion device 8 is connected to the pipe section 7; the sealing wall is outside the housing 2 or the pipe section 7.

[0055] The construction process of the full-section cutting rectangular pipe jacking machine provided by the embodiment of the present invention is detailed as follows:

[0056] When the rectangular pipe jacking machine advances forward, the propulsion device 8 applies a thrust to the pipe section 7. The pipe section 7 is connected to the housing 2, and thus transmits a force to the entire rectangular pipe jacking machine; the portal sealing device 5 is connected to the soil body to prevent the soil body from collapsing or gushing; the second driving device 4 transmits torque through the gear set 3. The planetary gear 31 rotates self and revolves along the external gear ring 32; the planetary gear 31 rotates self and acts on the cutter head 1. The cutter head 1 rotates self and revolves. When the ratio of the self-rotation to the revolution of the cutter head 1 is certain, its cutting surface is a rectangular cutting surface; the cutter head 1 cuts the soil body, and the cut soil body is transported out through the slag discharging device 6.

[0057] The full-section cutting rectangular pipe jacking machine provided by the embodiment of the present invention:

[0058] 1. Solve the problem of incomplete rectangular cutting and truly achieve the effect of full-section cutting of the soil body.

[0059] 2. Adopt fully automated operation to ensure production safety;

[0060] 3. Multiple slag discharging methods effectively improve the construction efficiency and reduce the construction cost.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A full-face cutting rectangular pipe roof machine, characterized in that, Comprising: A cutter head; wherein, the cutter head includes a first driving device, a second driving device, a cutter disc and a gear set, The gear set includes a planetary gear and an external gear ring for cooperative use, The cutter disc is a three-spoke cutter disc, and the first driving device drives the cutter disc to rotate self, The cutter disc is arranged on the planetary gear, and the second driving device is connected to the gear set to drive the cutter disc to revolve, The cutter disc rotates self and revolves simultaneously, making the cutting profile simulate a square; A housing, on which the cutter head is arranged; A pipe section, which is connected to the end of the housing; A frame, on which a propulsion device for pushing the cutter head is arranged, and the propulsion device is arranged at the end of the pipe section; wherein, the propulsion device is connected to the pipe section; The full-face cutting rectangular pipe roof machine further includes a front shield and a tail shield, Four rectification oil cylinders are arranged at the hinge joint of the front shield and the tail shield, distributed diagonally, for rectification in the up, down, left and right directions, When rectification or alignment is required, lock the rectification oil cylinders on one side as the turning axis, and control the extension amount of the rectification oil cylinders on other sides for rectification and alignment.

2. The full-face cutting rectangular pipe jacking machine according to claim 1, characterized in that The first driving device and the second driving device are motors.

3. The full-face cutting rectangular pipe jacking machine according to claim 1, characterized in that, It further includes a slag discharging device, which is built in the housing and the pipe section, And is located at the bottom of the housing and the pipe section.

4. The full-face cutting rectangular pipe roof machine according to claim 3, characterized in that, The slag discharging device is screw slag discharging or slurry pipeline slag discharging.

5. The full-face cutting rectangular pipe jacking machine according to claim 1, characterized in that, It further includes a portal sealing device, which is arranged on the outer wall of the housing.

6. The full-face cutting rectangular pipe roof machine according to claim 1, characterized in that, There are multiple pipe sections, The housing is connected to the pipe section and between the pipe sections by bolts or welding.

Images