Heading machine stabilizing device suitable for soft rock roadway

Abstract

The heading machine stabilizing device suitable for the soft rock roadway comprises a machine body, and driving toothed belts are installed on the two sides of the bottom of the machine body. The extension plates are fixedly mounted at the front end and the rear end of the machine body; the positioning assemblies are arranged at the front end and the rear end of the machine body; the cleaning assemblies are arranged at the front end and the rear end of the machine body; wherein the positioning assembly is used for positioning and supporting the machine body. According to the heading machine stabilizing device suitable for the soft rock roadway, when a machine body moves to a working position through a driving toothed belt in a driving part, a hydraulic rod is operated, so that the output end of the hydraulic rod pushes a fixing plate to move towards the bottom of the roadway, and a plurality of groups of positioning cushion blocks at the bottom of the fixing plate generate high friction force with a rock surface through corrugated lines; and through supporting of the positioning cushion block, the pressure of the driving part for driving the toothed belt can be effectively relieved, and therefore the service life of the driving toothed belt is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of soft rock tunnel construction technology, specifically a stabilizing device for tunneling machines suitable for soft rock tunnels. Background Technology

[0002] Soft rock tunnels are tunnels excavated under complex rock mass conditions such as softness, fracture, expansion, and rheology. They are characterized by significant deformation and poor self-stabilization. Therefore, when using a tunneling machine for excavation, it is necessary to use stabilization devices to stabilize them.

[0003] The disclosed information pertains to a tunneling machine, primarily aimed at improving its adaptability and working efficiency. The tunneling machine includes a main body; a traveling unit comprising a first traveling unit and a second traveling unit, the first traveling unit being movably disposed on a first side of the main body, and the second traveling unit being movably disposed on a second side of the main body opposite to the first side; and a drive unit disposed on the main body, connected to the first and second traveling units, for driving the first and second traveling units to move closer together and further apart.

[0004] The device is driven by the first traveling section and the second traveling section body, which moves it forward along the roadway. However, the device does not have a structure to stabilize the body. When the body is working, the bottom of the body will bear a lot of pressure. Without a stabilizing structure, it is easy to damage the traveling section and the body may move on its own during operation, thereby increasing the risk of working in the roadway.

[0005] To address the aforementioned issues, we have developed an innovative design based on the existing stabilization device structure for tunnel boring machines suitable for soft rock tunnels. Utility Model Content

[0006] The purpose of this utility model is to provide a stabilizing device for tunneling machines suitable for soft rock roadways, in order to solve the problem mentioned in the background art that the device does not have a structure to stabilize the machine body. When the machine body is working, the bottom of the machine body will bear a lot of pressure. If no stabilizing structure is provided, it will not only easily cause damage to the traveling parts, but also easily cause the machine body to move on its own during operation, thereby increasing the risk of working in the roadway.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stabilizing device for a tunneling machine suitable for soft rock tunnels, comprising a machine body, with drive toothed belts installed on both sides of the bottom of the machine body; an extension plate, the extension plate being fixedly installed at both the front and rear ends of the machine body; a positioning component, the positioning component being disposed at both the front and rear ends of the machine body; and a cleaning component, the cleaning component being disposed at both the front and rear ends of the machine body; wherein, the positioning component is used for positioning and supporting the machine body; and the cleaning component is used for cleaning the gravel inside the soft rock tunnel.

[0008] Preferably, the drive belt has a tooth pitch of 15-20 mm and is coated with a wear-resistant chromium layer.

[0009] By adopting the above technical solution, the service life of the drive belt can be extended by plating a wear-resistant chromium layer on the outside of the drive belt.

[0010] Preferably, the positioning assembly includes a positioning frame, a guide rod, and a first telescopic spring. The positioning frame is fixedly mounted on the upper end of the extension plate, and the guide rod is slidably connected to the inner side of the positioning frame. The first telescopic spring is connected between the end of the guide rod and the positioning frame.

[0011] By adopting the above technical solution and by setting a first telescopic spring, the fixing plate can be automatically reset by the elastic force of the first telescopic spring.

[0012] Preferably, the positioning component further includes a fixing plate and positioning pads. The fixing plate is fixedly connected to the bottom of the guide rod, and positioning pads are installed at equal intervals on the bottom of the fixing plate. The contact surface of the positioning pads is provided with corrugated anti-slip texture and is made of polyurethane rubber.

[0013] By adopting the above technical solution, the positioning pad, combined with the corrugated anti-slip texture and polyurethane rubber material, can significantly enhance the anti-slip ability of the machine body in soft rock tunnels and adapt to irregular rock surface deformation.

[0014] Preferably, the positioning component further includes a hydraulic rod, which is fixedly installed at the bottom of the extension plate, and the output end of the hydraulic rod is distributed vertically in correspondence with the fixed plate.

[0015] By adopting the above technical solution, the hydraulic rod can provide downward force to the fixed plate.

[0016] Preferably, the cleaning assembly includes a support baffle, a guide groove, a guide block, a rotating rod, and a cleaning head. The support baffle is fixedly installed on the outside of the extension plate, and a guide groove is provided on the inner side of the support baffle. A guide block is slidably connected to the inner side of the guide groove, and a rotating rod is rotatably connected to the outer side of the guide block. The cleaning head is rotatably connected to the tail end of the rotating rod, and the cleaning head is located on the outside of the support baffle.

[0017] By adopting the above technical solution and by setting up the cleaning head, the gravel at the front of the machine body can be cleaned.

[0018] Preferably, the cleaning assembly further includes a second telescopic spring, the two ends of which are respectively connected to the rotating rod, and the rotating rod is provided with four sets.

[0019] By adopting the above technical solution, the guide block can be automatically reset by the elastic force of the second telescopic spring.

[0020] Preferably, the cleaning head has a cone-shaped structure when viewed from above, and the material used for the cleaning head is cemented carbide.

[0021] By adopting the above technical solution and using cemented carbide material, the service life of the cleaning head can be improved.

[0022] Compared with the prior art, the beneficial effect of this utility model is that the stabilizing device for tunneling machines suitable for soft rock tunnels is equipped with:

[0023] 1. Stable structure: When the machine body moves to the working position via the drive belt in the drive unit, the hydraulic rod is operated, causing the output end of the hydraulic rod to push the fixed plate to the bottom of the tunnel. This causes multiple sets of positioning pads at the bottom of the fixed plate to generate high friction with the rock surface through the corrugated pattern, thereby increasing the stability of the machine body during operation. Furthermore, the support of the positioning pads can effectively relieve the pressure on the drive belt in the drive unit, thereby extending the service life of the drive belt.

[0024] Furthermore, when the machine body needs to move, the hydraulic rod is operated, causing the output end of the hydraulic rod to move upward. After the fixed plate loses the thrust of the hydraulic rod output end, it will be reset by the elastic force of the first telescopic spring, thereby resetting the positioning pad at the bottom of the fixed plate. At this time, the machine body can be moved back and forth by driving the toothed belt.

[0025] 2. Stone removal structure: When the machine moves forward, the cone-shaped cleaning head will push the stones on the front of the machine to both sides. This will prevent the stones from damaging the drive belt of the drive unit and facilitate subsequent stone removal work.

[0026] Furthermore, when the cleaning head comes into contact with the crushed stone on the front side, the impact causes the rotating rods on both sides to rotate, thereby causing the guide block at the end of the rotating rod to slide outward along the inner side of the guide groove. At the same time, the second telescopic spring will stretch, forming a buffering force opposite to the impact direction. When the impact force weakens, the second telescopic spring releases its elastic potential energy, pulling the guide block back along the guide groove. The rotating rod drives the cleaning head to reset to its initial position, preparing for the next impact. During continuous excavation, the cleaning head achieves efficient cleaning and drainage of crushed stone through the "impact-buffering-reset" cycle. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0029] Figure 3 This is a three-dimensional structural diagram of the positioning component of this utility model;

[0030] Figure 4 This is a three-dimensional structural diagram of the cleaning component of this utility model;

[0031] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0032] In the diagram: 1. Machine body; 2. Drive belt; 3. Extension plate; 4. Positioning assembly; 401. Positioning frame; 402. Guide rod; 403. First telescopic spring; 404. Fixing plate; 405. Positioning pad; 406. Hydraulic rod; 5. Cleaning assembly; 501. Support baffle; 502. Guide groove; 503. Guide block; 504. Rotating rod; 505. Cleaning head; 506. Second telescopic spring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-5 This utility model provides a technical solution: a stabilizing device for a tunnel boring machine suitable for soft rock tunnels, comprising:

[0035] Example 1: As Figures 1-3 The present invention provides a technical solution: a stabilizing device for a tunneling machine suitable for soft rock tunnels, comprising: a machine body 1, with drive toothed belts 2 installed on both sides of the bottom of the machine body 1; an extension plate 3, which is fixedly installed at the front and rear ends of the machine body 1; a positioning component 4, which is disposed at the front and rear ends of the machine body 1; and a cleaning component 5, which is disposed at the front and rear ends of the machine body 1. The positioning component 4 is used for positioning and supporting the machine body 1; and the cleaning component 5 is used for cleaning the gravel inside the soft rock tunnel.

[0036] The drive belt 2 has a tooth pitch of 15-20mm and is coated with a wear-resistant chromium layer. The positioning assembly 4 includes a positioning frame 401, a guide rod 402, and a first telescopic spring 403. The positioning frame 401 is fixedly installed on the upper end of the extension plate 3, and the guide rod 402 is slidably connected to the inner side of the positioning frame 401. The first telescopic spring 403 is connected between the end of the guide rod 402 and the positioning frame 401. The positioning assembly 4 also includes a fixing plate 404 and a positioning pad 405. The fixing plate 404 is fixedly connected to the bottom of the guide rod 402, and the positioning pads 405 are equidistantly installed on the bottom of the fixing plate 404. The contact surface of the positioning pads 405 is provided with a corrugated anti-slip texture and is made of polyurethane rubber. The positioning assembly 4 also includes a hydraulic rod 406. The hydraulic rod 406 is fixedly installed on the bottom of the extension plate 3, and the output end of the hydraulic rod 406 is vertically distributed with the fixing plate 404.

[0037] When the machine body 1 moves to the working position via the drive belt 2 in the drive unit, the hydraulic rod 406 is operated, causing the output end of the hydraulic rod 406 to push the fixed plate 404 towards the bottom of the tunnel. This causes the multiple sets of positioning pads 405 at the bottom of the fixed plate 404 to generate high friction with the rock surface through the corrugated pattern, thereby increasing the stability of the machine body 1 during operation. The support of the positioning pads 405 can effectively relieve the pressure on the drive belt 2 of the drive unit, thereby extending the service life of the drive belt 2. When the machine body 1 needs to move, the hydraulic rod 406 is operated, causing the output end of the hydraulic rod 406 to move upward. After the fixed plate 404 loses the thrust from the output end of the hydraulic rod 406, it will be reset by the elastic force of the first telescopic spring 403, thereby resetting the positioning pads 405 at the bottom of the fixed plate 404. At this time, the drive belt 2 can drive the machine body 1 to move back and forth.

[0038] Example 2: Figures 1-2 , Figures 4-5 The present invention provides a technical solution: a stabilizing device for a tunneling machine suitable for soft rock tunnels, which discloses that: the cleaning component 5 includes a support baffle 501, a guide groove 502, a guide block 503, a rotating rod 504, and a cleaning head 505. The support baffle 501 is fixedly installed on the outside of the extension plate 3, and the guide groove 502 is provided on the inner side of the support baffle 501. The guide block 503 is slidably connected to the inner side of the guide groove 502, and the rotating rod 504 is rotatably connected to the outer side of the guide block 503. The cleaning head 505 is rotatably connected to the tail end of the rotating rod 504 and is located on the outside of the support baffle 501. The cleaning component 5 also includes a second telescopic spring 506, the two ends of which are respectively connected to the rotating rod 504, and the rotating rod 504 is provided with four sets. The cleaning head 505 has a cone-shaped structure when viewed from above, and the material used for the cleaning head 505 is hard alloy.

[0039] When the machine body 1 moves forward, the cone-shaped cleaning head 505 pushes the gravel on the front side of the machine body 1 to both sides. This avoids damage to the drive belt 2 of the drive unit caused by the gravel, and facilitates subsequent gravel cleaning. When the cleaning head 505 comes into contact with the gravel on the front side, the impact will cause the rotating rods 504 on both sides to rotate. This causes the guide block 503 at the end of the rotating rod 504 to slide from the inside to the outside along the guide groove 502. At the same time, the second telescopic spring 506 will be stretched, forming a buffer force opposite to the impact direction. When the impact force weakens, the second telescopic spring 506 releases its elastic potential energy, pulling the guide block 503 back along the guide groove 502. The rotating rod 504 drives the cleaning head 505 to return to the initial position, ready for the next impact. During continuous excavation, the cleaning head 505 achieves efficient cleaning and drainage of gravel through the "impact-buffering-reset" cycle.

[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stabilizing device for a tunnel boring machine suitable for soft rock tunnels, characterized in that, include: The body (1) has drive toothed belts (2) installed on both sides of the bottom of the body (1); Extension plate (3), the extension plate (3) is fixedly installed at both ends of the machine body (1); Positioning component (4), the positioning component (4) is disposed at both ends of the front and rear of the body (1); Cleaning component (5), wherein the cleaning component (5) is disposed at both the front and rear ends of the body (1); wherein, The positioning component (4) is used to position and support the body (1); The cleaning component (5) is used to clean the gravel inside the soft rock tunnel.

2. The stabilizing device for a tunnel boring machine suitable for soft rock tunnels according to claim 1, characterized in that: The drive belt (2) has a tooth pitch of 15-20 mm and is plated with a wear-resistant chromium layer.

3. The stabilizing device for a tunnel boring machine suitable for soft rock tunnels according to claim 1, characterized in that: The positioning component (4) includes a positioning frame (401), a guide rod (402) and a first telescopic spring (403). The positioning frame (401) is fixedly installed on the upper end of the extension plate (3), and the guide rod (402) is slidably connected to the inner side of the positioning frame (401). The first telescopic spring (403) is connected between the end of the guide rod (402) and the positioning frame (401).

4. A stabilizing device for a tunnel boring machine suitable for soft rock tunnels according to claim 3, characterized in that: The positioning component (4) further includes a fixing plate (404) and a positioning pad (405). The fixing plate (404) is fixedly connected to the bottom of the guide rod (402), and the positioning pad (405) is installed at equal intervals on the bottom of the fixing plate (404). The contact surface of the positioning pad (405) is provided with a corrugated anti-slip texture and is made of polyurethane rubber.

5. A stabilizing device for a tunnel boring machine suitable for soft rock tunnels according to claim 4, characterized in that: The positioning component (4) also includes a hydraulic rod (406), which is fixedly installed at the bottom of the extension plate (3), and the output end of the hydraulic rod (406) is distributed vertically and vertically with the fixed plate (404).

6. A stabilizing device for a tunnel boring machine suitable for soft rock tunnels according to claim 1, characterized in that: The cleaning assembly (5) includes a support baffle (501), a guide groove (502), a guide block (503), a rotating rod (504), and a cleaning head (505). The support baffle (501) is fixedly installed on the outside of the extension plate (3), and a guide groove (502) is provided on the inside of the support baffle (501). A guide block (503) is slidably connected to the inside of the guide groove (502), and a rotating rod (504) is rotatably connected to the outside of the guide block (503). A cleaning head (505) is rotatably connected to the end of the rotating rod (504), and the cleaning head (505) is located on the outside of the support baffle (501).

7. A stabilizing device for a tunnel boring machine suitable for soft rock tunnels according to claim 6, characterized in that: The cleaning assembly (5) also includes a second telescopic spring (506), the two ends of which are connected to the rotating rod (504), and the rotating rod (504) is provided with four sets.

8. A stabilizing device for a tunnel boring machine suitable for soft rock tunnels according to claim 6, characterized in that: The cleaning head (505) has a cone-shaped structure when viewed from above, and the material used for the cleaning head (505) is hard alloy.

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