Tunnel geology advanced forecasting device

Abstract

The invention discloses a tunnel geology advanced forecasting device which comprises a caterpillar band chassis, a first platform horizontally arranged at the top of the caterpillar band chassis and an operation table arranged at the top of the rear end of the first platform, and further comprises a lifting assembly, a translation assembly and a scraping plate assembly used for scraping a tunnel face to be loose and flat in advance with the advancing direction of the caterpillar band chassis as the front end. The lifting assembly is arranged at the top of the front end of the first platform, a horizontal rotating assembly is arranged at the top of the lifting assembly, the rear end of the translation assembly and the rear end of the scraper assembly are both horizontally connected to the horizontal rotating assembly, and an included angle smaller than or equal to 90 degrees is formed between the translation assembly and the scraper assembly. When the horizontal rotating assembly drives the translation assembly and the scraper assembly to rotate left and right in the horizontal plane, the radar can be always kept parallel to the tunnel face. According to the device, the tunnel face can be scraped, loosened and flattened in advance, the radar can be kept parallel to the tunnel face all the time, the geological condition in the tunnel face can be accurately forecasted, and then corresponding countermeasures are made.

Description

Technical Field

[0001] The invention belongs to the technical field of geological prediction, in particular to a tunnel geological advance prediction device. Background Art

[0002] With the rapid development of road traffic engineering, more and more tunnel projects are being built. Tunnel disasters such as rock collapse, water gushing, mud burst, gas leakage, etc. often occur. Therefore, geophysical exploration methods are used to conduct advanced geological forecasts during tunnel excavation to timely discover unfavorable geological bodies in front of the tunnel face, provide accurate and sufficient geological data for tunnel construction, and enable construction personnel to adjust the construction process, thereby reducing and preventing the occurrence of engineering accidents, which is of significant significance to ensuring the personal safety of tunnel construction personnel and accelerating the construction progress.

[0003] At present, the advanced geological prediction methods include mechanical drilling and electromagnetic wave reflection method, etc., while mechanical drilling can usually only detect part of the tunnel face and has low efficiency; the electromagnetic wave reflection method can quickly obtain underground data, save time and cost, and efficiently complete the exploration work. It is suitable for exploration under different geological conditions and has a wide range of applications. The commonly used electromagnetic wave reflection method is the geological radar method. The geological radar method is an AC electric exploration method that uses high-frequency (10-1000MHz) short-pulse electromagnetic waves transmitted by a transmitting antenna to propagate underground, and detects signals reflected by underground geological bodies or signals transmitted through geological bodies to detect geological targets; however, when used in a tunnel, two people are often required to carry the detector to detect the front of the tunnel face, and the detector is heavy, so it is difficult for humans to carry the detector continuously and steadily, which is easy to cause errors in the detection results. If the tunnel face surface is uneven, it will affect the reflection and scattering of the signal, which is not conducive to the transmission and reception of the detector signal, and reduces the accuracy and clarity of the detection.

[0004] In summary, the present invention provides a tunnel geology advance prediction device to solve the above problems. Summary of the invention

[0005] In view of the above problems existing in the prior art, the purpose of the present invention is to provide a tunnel geology advance prediction device which can loosen and smooth the tunnel face in advance and can keep the radar parallel to the tunnel face at all times to accurately predict the geological conditions in the tunnel face.

[0006] In order to solve the deficiencies of the prior art, the present invention adopts the following technical solutions: A tunnel geological advance prediction device comprises a crawler chassis, a first platform horizontally arranged on the top of the crawler chassis, and an operating table arranged on the top of the rear end of the first platform. With the forward direction of the crawler chassis as the front end, the device further comprises a lifting assembly, a translation assembly, and a scraper assembly for pre-loosening and leveling the tunnel face. The lifting assembly is arranged on the top of the front end of the first platform, and a horizontal rotation assembly is arranged on the top of the lifting assembly. The rear ends of the translation assembly and the scraper assembly are both horizontally connected to the horizontal rotation assembly, and an angle of less than or equal to 90 degrees is formed between the two. The front end of the translation assembly is provided with a radar facing the tunnel face. When the horizontal rotation assembly drives the translation assembly and the scraper assembly to rotate left and right in the horizontal plane, the radar can always remain parallel to the tunnel face.

[0007] As a further improvement of the above technical solution: The translation assembly includes a first electric telescopic rod, a first ball and a fixed rod. The fixed end of the first electric telescopic rod is installed on the top of the horizontal rotation assembly through a 90-degree elbow. The first ball is rotatably embedded in the front end inner cavity of the telescopic rod of the first electric telescopic rod. The upper and lower sides of the front end of the telescopic rod extend forward to form a limit block. The front end of the limit block is an arc-shaped end protruding forward. The fixed rod is installed in the middle of the front end of the first ball. The back of the radar is installed at the front end of the fixed rod, and the arc-shaped end of the limit block abuts against the back of the radar.

[0008] Arc-shaped support blocks are fixedly connected to both sides of the fixing rod, a gap exists between the bottom of the support block and the limit block located below, and a rod-shaped mounting portion for mounting a radar is provided in the middle of the front end of the fixing rod.

[0009] The inertial component includes a cavity arranged at the bottom of the radar, with a second ball placed at each end of the cavity. A plurality of evenly spaced semicircular grooves are provided at the bottom of the cavity between the two second balls. When the translation component drives the radar to rotate left or right, the second ball on the corresponding side inertially rolls to the right or left to the other side, so that the radar rotates to the right or left at a certain angle due to the weight imbalance and remains parallel to the palm face. The semicircular groove is used to provide resistance for the second ball.

[0010] The scraper assembly includes a second electric telescopic rod, a rectangular fixed plate and multiple groups of scrapers, the fixed end of the second electric telescopic rod is horizontally installed on the vertical end of the elbow, the telescopic rod of the second electric telescopic rod is vertically connected to the middle of the back side of the fixed plate, the fixed plate is vertically arranged with its front facing the palm face, multiple groups of scrapers are evenly arranged in front of the fixed plate along the vertical direction, multiple groups of rotating components corresponding to the scrapers are arranged inside the fixed plate, each scraper is rotatably connected to the fixed plate through the corresponding rotating component, so that the scraper can rotate between horizontal and vertical states, when the scraper is in the horizontal state, the scrapers are parallel to each other and arranged at intervals; when in the vertical state, the heads and tails of all scrapers can be connected to form a straight plate perpendicular to the fixed plate.

[0011] The fixing plate comprises a front fixing plate and a rear fixing plate, the front fixing plate is attached to the front of the rear fixing plate, the back of the rear fixing plate is connected to the end of the telescopic rod of the second electric telescopic rod, a plurality of transversely penetrating mounting grooves are provided on the front of the rear fixing plate for mounting the corresponding rotating components, and vertical sliding grooves are provided on both sides of the front fixing plate and the rear fixing plate at positions corresponding to the mounting grooves; the rotating component comprises a gear, the gear is mounted in the mounting groove through a rotating shaft perpendicular to the rear fixing plate, a through hole is provided at a corresponding position in the middle of the front fixing plate, and the free end of the rotating shaft is sleeved after passing through the through hole of the front fixing plate In the blind hole opened in the middle of the rear end of the scraper, a rack moving block is meshed on both sides of the gear, and a vertical guide bar is provided on the front and rear end surfaces of the rack moving block respectively. The rack moving block is slid in the corresponding side slide grooves of the front fixed plate and the rear fixed plate through the guide bar and can slide up and down. When the rack moving block on one side moves, it can push the gear to drive the rack moving block on the other side to move in the opposite direction; a flip rod parallel to the rotating shaft and located on the outside of the front fixed plate is provided on the side of the rack moving block close to the scraper. The two rack moving blocks are respectively located above and below the scraper, and the upper surface and lower surface of the scraper are respectively in contact with the corresponding flip rods.

[0012] The scraper is a steel scraper, which is thick in the middle and thin at both ends, and thick at the rear end and thin at the front end.

[0013] The lifting assembly includes two groups of folding and telescopic frames arranged in parallel, a second platform horizontally arranged on the top of the two groups of folding and telescopic frames, and a hydraulic cylinder installed on the front end side wall of the operating table. The bottom end of the folding and telescopic frames is hinged to the first platform, and the two groups of folding and telescopic frames are connected into an integrated structure through multiple horizontal hinge shafts arranged in parallel up and down. The top of the folding and telescopic frame is rotatably hinged to the bottom of the second platform, and the hydraulic rod of the hydraulic cylinder is tilted upward and connected to the hinge shaft located at the highest position to control the simultaneous lifting and lowering of the two groups of folding and telescopic frames.

[0014] The folding telescopic frame includes more than three groups of X-shaped connecting rod groups, which are arranged up and down in the same vertical plane, and the head and tail of two adjacent groups of X-shaped connecting rod groups are hinged by corresponding hinge shafts. The group of X-shaped connecting rod groups located at the bottom can be rotatably hinged on the first platform, and the group of X-shaped connecting rod groups located at the top can be rotatably hinged on the bottom of the second platform.

[0015] The horizontal rotation assembly includes a turntable and a motor. The turntable is horizontally arranged on the top of the second platform. A mounting hole is opened at the center of the turntable. The motor is installed at the bottom center of the second platform. The output shaft of the motor vertically passes through the second platform upward and is installed in the mounting hole of the turntable to drive it to rotate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The tunnel geological advance prediction device of the present invention is provided with a horizontal rotating assembly on the top of the lifting assembly, and the scraper assembly and the translation assembly connected with the radar are connected to the horizontal rotating assembly, and an angle is formed between the scraper assembly and the translation assembly, so the soil layer and gravel on the face of the tunnel can be firstly scraped loose and flattened by the scraper assembly to ensure the smoothness of the face surface, reduce the reflection and interference of the geological radar signal between the walls due to the uneven wall surface, and prevent some protruding stones from causing damage to the radar surface. When the radar rotates with the translation assembly, it can always conduct geological surveys parallel to the face of the tunnel, which can ensure accurate prediction of the geological conditions inside the face of the tunnel.

[0017] 2. In the tunnel geological advance prediction device of the present invention, the front end of the telescopic rod of the first electric telescopic rod in the translation assembly is extended forward on both the upper and lower sides to form a limit block, and the front end of the limit block is an arc-shaped end protruding forward. When the translation assembly drives the radar to rotate left and right, the second ball in the inertial assembly slides to the other side due to inertia, causing the other side to be heavier, and the radar can be deflected to the other side. During the deflection process, the semicircular groove provides resistance for the second ball, and provides gravity for the radar in sections to control the radar from rotating too fast. The limit block can limit the radar from rotating upward and downward, and it can only deflect along the arc-shaped end of the limit block and prevent excessive deflection through the support block, so that the radar always remains parallel to the face of the tunnel. The structure is simple and the operation is convenient.

[0018] 3. The tunnel geological advance prediction device of the present invention has thinner scrapers at both ends, which can reduce resistance when sliding in the soil layer, making it easier to loosen the soil layer. The scrapers are rotatably connected to the fixed plate through a rotating assembly. When encountering some gravel, the scrapers can be rotated to bypass them to avoid damage to the scrapers caused by the gravel. When it is necessary to scrape the soil layer flat, the heads and tails of all scrapers can be driven and connected into a straight plate perpendicular to the fixed plate through the rotating assembly to further scrape the loosened soil layer flat, which is beneficial to subsequent radar surveys. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the tunnel geology advance prediction device of the present invention.

[0020] Figure 2 It is a partial structural diagram of the tunnel geology advance prediction device of the present invention.

[0021] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0023] Figure 5 It is a cross-sectional schematic diagram of the installation structure of the horizontal rotating component in the tunnel geology advance prediction device of the present invention.

[0024] Figure 6 The utility model is a schematic diagram of the installation structure of the first sphere and the fixing rod in the tunnel geological advance prediction device of the present invention.

[0025] Figure 7 It is a structural schematic diagram of the connection between the radar and the first electric telescopic rod in the tunnel geology advance prediction device of the present invention.

[0026] In the figure: 1. Crawler chassis; 11. First platform; 12. Operating table; 2. Lifting assembly; 21. X-shaped connecting rod group; 22. Hinge shaft; 23. Hydraulic cylinder; 24. Second platform; 25. Turntable; 26. Motor; 3. Translation assembly; 31. First electric telescopic rod; 32. First sphere; 33. Fixed rod; 34. Limit block; 35. Radar; 351. Cavity; 352. Semicircular groove; 353. Second sphere; 36. Support block; 4. Scraper assembly; 41. Second electric telescopic rod; 42. Fixed plate; 43. Scraper; 44. Gear; 45. Moving block; 46. Flip rod. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] like Figure 1-Figure 7As shown, an embodiment of a tunnel geological advance prediction device of the present invention includes a crawler chassis 1, a first platform 11 horizontally arranged on the top of the crawler chassis 1, and an operating table 12 arranged on the top of the rear end of the first platform 11. With the forward direction of the crawler chassis 1 as the front end, it also includes a lifting component 2, a translation component 3 and a scraper component 4 for pre-loosening and flattening the tunnel face. The lifting component 2 is arranged on the top of the front end of the first platform 11, and a horizontal rotation component is arranged on the top of the lifting component 2. The rear ends of the translation component 3 and the scraper component 4 are horizontally connected to the horizontal rotation component, and an angle of less than or equal to 90 degrees is formed between the two. The front end of the translation component 3 is provided with a radar 35 facing the tunnel face. When the horizontal rotation component drives the translation component 3 and the scraper component 4 to rotate left and right in the horizontal plane, the radar 35 can always remain parallel to the tunnel face. The present invention sets a horizontal rotating assembly on the top of the lifting assembly, and connects the scraper assembly and the translation assembly connected to the radar to the horizontal rotating assembly. An angle is formed between the scraper assembly and the translation assembly. Therefore, the soil layer and gravel on the face of the tunnel can be loosened and leveled by using the scraper assembly to ensure the smoothness of the face surface, reduce the reflection and interference of the geological radar signal between the walls due to the uneven wall surface, and prevent some protruding stones from causing damage to the radar surface. When the radar rotates with the translation assembly, it can always conduct geological surveys parallel to the face of the tunnel, which can ensure accurate prediction of the geological conditions inside the face of the tunnel.

[0029] In this embodiment, the lifting assembly 2 includes two sets of folding and telescopic frames arranged in parallel, a second platform 24 arranged horizontally on the top of the two sets of folding and telescopic frames, and a hydraulic cylinder 23 installed on the front side wall of the operating table. The bottom end of the folding and telescopic frames is hinged on the first platform 11. The two sets of folding and telescopic frames are connected into an integral structure through multiple horizontal hinge shafts 22 arranged in parallel up and down. The top of the folding and telescopic frames can be rotatably hinged to the bottom of the second platform. The hydraulic rod of the hydraulic cylinder is tilted upward and connected to the hinge shaft 22 at the highest position to control the simultaneous lifting of the two sets of folding and telescopic frames. The lifting device can make the translation assembly 3 and the scraper assembly 4 move up and down, which is convenient for leveling and surveying the entire face.

[0030] In this embodiment, the folding telescopic frame includes more than three groups of X-shaped link groups 21 (preferably three groups), the three groups of X-shaped link groups 21 are arranged up and down in the same vertical plane, and the two adjacent groups of X-shaped link groups 21 are hinged at the head and tail through corresponding hinge shafts 22, the group of X-shaped link groups 21 located at the bottom can be rotatably hinged on the first platform 11, and the group of X-shaped link groups 21 located at the top can be rotatably hinged at the bottom of the second platform 24.

[0031] In this embodiment, the translation assembly 3 includes a first electric telescopic rod 31, a first ball 32 and a fixed rod 33. The fixed end of the first electric telescopic rod 31 is fixedly connected to the horizontal end of a 90-degree elbow. The vertical end of the 90-degree elbow is installed on the top of the horizontal rotation assembly. The first ball 32 is rotatably embedded in the front end inner cavity of the telescopic rod of the first electric telescopic rod 31. The upper and lower sides of the front end of the telescopic rod extend forward to form a limit block 34. The front end of the limit block 34 is an arc-shaped end protruding forward. The fixed rod 33 is installed in the middle of the front end of the first ball 32. The back of the radar 35 is installed at the front end of the fixed rod 33. The arc-shaped end of the limit block 34 abuts against the back of the radar 35. In this embodiment, both sides of the fixed rod 33 are fixedly connected with arc-shaped support blocks 36. There is a gap between the bottom of the support block 36 and the limit block 34 located below. The middle of the front end of the fixed rod 33 is provided with a rod-shaped mounting portion for mounting the radar 35. Because limit blocks 34 are provided at the upper and lower ends of the fixing rod 33, the radar 35 cannot rotate upward or downward. Because the limit blocks 34 are arc-shaped ends, when the radar 35 deflects to one side, the support blocks 36 on both sides of the fixing rod 33 limit the radar 35 from rotating excessively downward to one side, preventing the radar 35 from tilting, so that the radar 35 always remains parallel to the palm face.

[0032] In this embodiment, an inertial component is provided at the bottom of the radar 35, and the inertial component includes a cavity 351 provided at the bottom of the radar 35, and a second ball 353 is placed at each end of the cavity 351. A plurality of semicircular grooves 352 evenly spaced are provided at the bottom of the cavity 351 between the two second balls 353. When the translation component 3 drives the radar 35 to rotate left or right, the second ball 353 on the corresponding side rolls right or left to the other side by inertia, so that the radar 35 rotates right or left by a certain angle due to the weight bias and remains parallel to the palm face. The semicircular grooves 352 are used to provide resistance for the second ball 353.

[0033] In this embodiment, the scraper assembly 4 includes a second electric telescopic rod 41, a rectangular fixed plate 42 and multiple groups of scrapers 43. The fixed end of the second electric telescopic rod 41 is horizontally installed in the hole opened at the vertical end of the elbow and fixedly connected. The telescopic rod of the second electric telescopic rod 41 is vertically connected to the middle of the back side of the fixed plate 42. The fixed plate 42 is vertically arranged and its front faces the palm face. Multiple groups of scrapers 43 are evenly arranged in front of the fixed plate 42 along the vertical direction. The interior of the fixed plate 42 is provided with multiple groups of rotating components corresponding to the scrapers 43 one by one. Each scraper 43 is rotatably connected to the fixed plate 42 through the corresponding rotating component, so that the scraper 43 can rotate between horizontal and vertical states. When the scraper 43 is in the horizontal state, the scrapers 43 are parallel to each other and arranged at intervals; in the vertical state, the heads and tails of all scrapers 43 can be connected to form a straight plate perpendicular to the fixed plate 42.

[0034] In this embodiment, the fixing plate 42 includes a front fixing plate and a rear fixing plate. The front fixing plate is attached to the front of the rear fixing plate, and the back of the rear fixing plate is connected to the telescopic rod end of the second electric telescopic rod 41. The front of the rear fixing plate is provided with a plurality of transversely penetrating installation grooves for installing corresponding rotating components, and vertical sliding grooves are provided on both sides of the front fixing plate and the rear fixing plate corresponding to the positions of the installation grooves.

[0035] In this embodiment, the rotating assembly includes a gear 44, which is installed in the installation groove through a rotating shaft perpendicular to the rear fixed plate. A through hole is opened at the corresponding position in the middle of the front fixed plate. The free end of the rotating shaft passes through the through hole of the front fixed plate and is sleeved in the blind hole opened in the middle of the rear end of the scraper 43. A rack moving block 45 is respectively engaged on both sides of the gear 44. A vertical guide bar is respectively provided on the front and rear end surfaces of the rack moving block 45. The rack moving block 45 is slidably arranged in the corresponding side sliding grooves of the front fixed plate and the rear fixed plate through the guide bar and can slide up and down. When the rack moving block 45 on one side moves, it can push the gear 44 to drive the rack moving block 45 on the other side to move in the opposite direction; a flip rod 46 parallel to the rotating shaft and located on the outside of the front fixed plate is provided on the side of the rack moving block 45 close to the scraper 43. The two rack moving blocks 45 are respectively located above and below the scraper 43, and the upper surface and lower surface of the scraper 43 are respectively in contact with the corresponding flip rod 46.

[0036] In this embodiment, the scraper 43 is a steel scraper, which is thick in the middle and thin at both ends, and thick at the rear end and thin at the front end, that is, the end close to the fixed plate 42 is thicker than the end far away. Since the scraper 43 is thinner at both ends, the resistance can be reduced when sliding in the soil layer, and the scraper 43 is rotatably connected to the fixed plate 42. When encountering some gravel, the scraper 43 can rotate around to avoid damage to the scraper 43 caused by the gravel.

[0037] In this embodiment, the horizontal rotation assembly includes a turntable 25 and a motor 26. The turntable 25 is horizontally arranged on the top of the second platform 24. A mounting hole is opened at the center of the turntable 25. The motor 26 is installed in the bottom center of the second platform 24. The output shaft of the motor 26 vertically passes through the second platform 24 and is installed in the mounting hole of the turntable 25 to drive it to rotate.

[0038] The specific operation method of the device of the present invention comprises the following steps: 1) The staff controls the operating platform 12 through the controller to drive the crawler chassis 1 to move toward the tunnel face, starts the motor 26 at the bottom of the second platform 24, drives the turntable 25 to rotate so that the fixed plate 42 faces the tunnel face, starts the second electric telescopic rod 41, inserts the thinner side of the scraper 43 into the tunnel face, rotates the turntable 25, and makes the scraper 43 slide on the tunnel face surface to loosen the soil layer and gravel on the tunnel face surface.

[0039] 2) After the scraper 43 has scraped a layer, the staff starts the hydraulic rod of the hydraulic cylinder 23 to extend, pushes the hinge shaft 22 to move upward, pulls the multiple groups of X-shaped connecting rods 21 to rotate and push the second platform 24 upward, so that the scraper 43 slides upward to the second layer of the face, and the above steps can be repeated to loosen the second layer of soil.

[0040] 3) When the soil layer on the face is completely loosened, start the motor 26 at the bottom of the second platform 24 to drive the turntable 25 to rotate, so that the moving block 45 on the side away from the radar contacts the side wall, and drive the lifting assembly 2 to rise. At this time, the wall resists the moving block 45 in contact with it and cannot move with it. The moving block 45 on this side slides downward relatively in the slide groove of the fixed plate 42, and pushes the gear 44 to rotate counterclockwise, driving the moving block 45 on the radar side to move upward, and the flip rod 46 moves upward to make each scraper 43 rotate counterclockwise to become a vertical state, so that each scraper 43 is vertically connected together to form an integral plate. Continue to drive the turntable 25 to rotate, so that the scraper 43 scrapes on the face, scraping off and smoothing the soil layer and gravel that have just been loosened on the face.

[0041] 4) When the tunnel face surface is flat, the motor 26 on the second platform 24 is started to drive the turntable 25 to rotate so that the radar 35 faces the tunnel face, and the first electric telescopic rod 31 is started to extend to control the distance between the radar 35 and the tunnel face, and then the radar 35 is turned on to start surveying the geological conditions.

[0042] Taking the turntable 25 driving the first electric telescopic rod 31 to rotate to the left as an example, how the radar 35 always remains parallel to the face of the tunnel is explained. When the first electric telescopic rod 31 rotates to the left, the second ball 353 will slide to the right due to inertia, providing gravity for the right side of the radar 35. The radar 35 will slightly deflect to the right side according to the gravity provided by the second ball 353. The second ball 353 will stop sliding every time it slides onto the semicircular groove 352. The semicircular groove 352 provides resistance for the second ball 353, thereby providing gravity for the radar 35 in sections and controlling the rotation angle of the radar 35. Because limit blocks 34 are provided at the upper and lower ends of the fixing rod 33, the radar 35 cannot rotate upward and downward. Because the limit blocks 34 are arc-shaped ends, when the radar 35 deflects to the right, the support blocks 36 on both sides of the fixing rod 33 limit the radar 35 from rotating excessively to the lower right, preventing the radar 35 from tilting, so that the radar 35 always remains parallel to the tunnel face, thereby accurately predicting the geological conditions inside the tunnel face and making corresponding countermeasures.

[0043] Similarly, when the first electric telescopic rod 31 rotates to the right, the radar 35 can also always remain parallel to the palm face.

[0044] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A tunnel geological advance prediction device, comprising a crawler chassis (1), a first platform (11) horizontally arranged on the top of the crawler chassis (1), and an operating table (12) arranged on the top of the rear end of the first platform (11), with the forward direction of the crawler chassis (1) as the front end, characterized in that: It also comprises a lifting assembly (2), a translation assembly (3) and a scraper assembly (4) for pre-loosening and flattening the tunnel face, wherein the lifting assembly (2) is arranged at the top of the front end of the first platform (11), a horizontal rotation assembly is arranged at the top of the lifting assembly (2), the rear ends of the translation assembly (3) and the scraper assembly (4) are both horizontally connected to the horizontal rotation assembly, and an angle of less than or equal to 90 degrees is formed between the two, and a radar (35) facing the tunnel face is arranged at the front end of the translation assembly (3), and when the horizontal rotation assembly drives the translation assembly (3) and the scraper assembly (4) to rotate left and right in a horizontal plane, the radar (35) can always remain parallel to the tunnel face.

2. The tunnel geology advance prediction device according to claim 1, characterized in that: The translation assembly (3) comprises a first electric telescopic rod (31), a first ball (32) and a fixed rod (33); the fixed end of the first electric telescopic rod (31) is mounted on the top of the horizontal rotation assembly through a 90-degree elbow; the first ball (32) is rotatably embedded in the inner cavity of the front end of the telescopic rod of the first electric telescopic rod (31); the upper and lower sides of the front end of the telescopic rod both extend forward to form a limit block (34); the front end of the limit block (34) is an arc-shaped end protruding forward; the fixed rod (33) is mounted at the middle of the front end of the first ball (32); the back of the radar (35) is mounted on the front end of the fixed rod (33); the arc-shaped end of the limit block (34) abuts against the back of the radar (35).

3. The tunnel geology advance prediction device according to claim 2, characterized in that: Arc-shaped support blocks (36) are fixedly connected to both sides of the fixing rod (33), a gap exists between the bottom of the support block (36) and the limit block (34) located below, and a rod-shaped mounting portion for mounting a radar (35) is provided in the middle of the front end of the fixing rod (33).

4. The tunnel geology advance prediction device according to any one of claims 1 to 3, characterized in that: The inertial component comprises a cavity (351) arranged at the bottom of the radar (35), a second ball (353) is placed at each end of the cavity (351), and a plurality of evenly spaced semicircular grooves (352) are provided at the bottom of the cavity (351) between the two second balls (353). When the translation component (3) drives the radar (35) to rotate leftward or rightward, the second ball (353) on the corresponding side inertially rolls rightward or leftward to the other side, so that the radar (35) rotates rightward or leftward by a certain angle due to the weight bias and remains parallel to the palm face. The semicircular grooves (352) are used to provide resistance for the second ball (353).

5. The tunnel geology advance prediction device according to claim 2, characterized in that: The scraper assembly (4) comprises a second electric telescopic rod (41), a rectangular fixed plate (42), and a plurality of groups of scrapers (43); the fixed end of the second electric telescopic rod (41) is horizontally mounted on the vertical end of the elbow; the telescopic rod of the second electric telescopic rod (41) is vertically connected to the middle of the back side of the fixed plate (42); the fixed plate (42) is arranged vertically and its front side faces the tunnel face; the plurality of groups of scrapers (43) are evenly arranged in front of the fixed plate (42) along the vertical direction; the fixed plate (42) is provided with a plurality of groups of rotating assemblies corresponding to the scrapers (43) in a one-to-one manner; each scraper (43) is rotatably connected to the fixed plate (42) via the corresponding rotating assemblies, so that the scraper (43) can rotate between a horizontal state and a vertical state; when the scraper (43) is in a horizontal state, the scrapers (43) are parallel to each other and arranged at intervals; when in a vertical state, the ends of all the scrapers (43) can be connected to form a straight plate perpendicular to the fixed plate (42).

6. The tunnel geology advance prediction device according to claim 5, characterized in that: The fixing plate (42) comprises a front fixing plate and a rear fixing plate, the front fixing plate is attached to the front of the rear fixing plate, the back of the rear fixing plate is connected to the end of the telescopic rod of the second electric telescopic rod (41), a plurality of transversely penetrating mounting grooves are provided on the front of the rear fixing plate for mounting the corresponding rotating components, and vertical sliding grooves are provided at positions corresponding to the mounting grooves on both sides of the front fixing plate and the rear fixing plate; The rotating assembly comprises a gear (44), the gear (44) being mounted in the mounting groove via a rotating shaft perpendicular to the rear fixing plate, a through hole being opened at a corresponding position in the middle of the front fixing plate, the free end of the rotating shaft passing through the through hole of the front fixing plate and then being sleeved in a blind hole opened in the middle of the rear end of the scraper (43), the two sides of the gear (44) respectively meshing with a rack moving block (45), the front and rear end surfaces of the rack moving block (45) respectively being provided with a vertical guide bar, the rack moving block (45) slidingly arranged through the guide bar The rack moving block (45) is arranged in the corresponding side sliding grooves of the front fixing plate and the rear fixing plate and can slide up and down. When the rack moving block (45) on one side moves, it can push the gear (44) to drive the rack moving block (45) on the other side to move in the opposite direction. A flip rod (46) parallel to the rotating shaft and located outside the front fixing plate is provided on a side of the rack moving block (45) close to the scraper (43). The two rack moving blocks (45) are respectively located above and below the scraper (43). The upper surface and the lower surface of the scraper (43) are respectively in contact with the corresponding flip rod (46).

7. The tunnel geology advance prediction device according to claim 6, characterized in that: The scraper (43) is a steel scraper, and is thick in the middle and thin at both ends, and thick at the rear end and thin at the front end.

8. The tunnel geology advance prediction device according to claim 1, characterized in that: The lifting assembly (2) comprises two groups of folding and telescopic frames arranged in parallel, a second platform (24) arranged horizontally on the top of the two groups of folding and telescopic frames, and a hydraulic cylinder (23) installed on the front side wall of the operating table (12); the bottom end of the folding and telescopic frames is hinged on the first platform (11); the two groups of folding and telescopic frames are connected to form an integral structure via a plurality of horizontal hinge shafts (22) arranged in parallel up and down; the top of the folding and telescopic frames is rotatably hinged to the bottom of the second platform (24); the hydraulic rod of the hydraulic cylinder (23) is tilted upward and connected to the hinge shaft (22) located at the highest position to control the simultaneous lifting and lowering of the two groups of folding and telescopic frames.

9. The tunnel geology advance prediction device according to claim 8, characterized in that: The folding telescopic frame comprises more than three groups of X-shaped connecting rod groups (21), which are arranged vertically in the same vertical plane, and two adjacent groups of X-shaped connecting rod groups (21) are hinged head to tail via corresponding hinge shafts (22), the group of X-shaped connecting rod groups (21) located at the bottom can be rotatably hinged on the first platform (11), and the group of X-shaped connecting rod groups (21) located at the top can be rotatably hinged on the bottom of the second platform (24).

10. The tunnel geology advance prediction device according to claim 9, characterized in that: The horizontal rotation assembly comprises a turntable (25) and a motor (26); the turntable (25) is horizontally arranged on the top of the second platform (24); a mounting hole is provided at the center of the turntable (25); the motor (26) is mounted at the center of the bottom of the second platform (24); an output shaft of the motor (26) vertically passes through the second platform (24) and is mounted in the mounting hole of the turntable (25) to drive the turntable (25) to rotate in a horizontal plane.

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