Auxiliary equipment for detecting water-rich sand layer for tunnel construction

Abstract

The invention discloses auxiliary equipment for detecting a water-rich sand layer for tunnel construction, the auxiliary equipment comprises a supporting base, a lifting device, a rotating device and a drill rod, the lifting device comprises a lifting servo motor, a screw rod and a lifting frame, the rotating device comprises a rotating column and a rotating servo motor, the drill rod is fixedly connected to the bottom of the rotating column, the bottom of the drill rod is fixedly connected with a conical drill bit, and the drill bit is fixedly connected with the screw rod. The drilling machine has the beneficial effects that when the drilling machine is used, rotation of the drilling rod is achieved through the rotating device, vertical lifting of the drilling rod is achieved through the lifting device, and therefore drilling can be conducted through the drilling rod, and the drilling machine is convenient to use. Therefore, the problems that a handheld drilling machine is large in labor intensity and difficult to maintain vertical drilling are solved, in the drilling process, water overflowing from a drilled hole can be discharged in time through work of the water pump, and drilling difficulty caused by buoyancy of water is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and particularly relates to an auxiliary device for detecting water-rich sand layers used in tunnel construction. Background Art

[0002] The sand content in the water-rich sand layer reaches more than 30%. The soil layer has a large void ratio, a large water content, large fluidity, small bearing capacity, poor self-stability, etc. During the process of tunnel construction, the water-rich sand layer is very common. When tunneling at these locations, it is necessary to detect the soil samples of the water-rich sand layer, so as to formulate a special grouting construction organization design.

[0003] When detecting the water-rich sand layer, it is necessary to take soil samples and then detect and analyze the samples. Generally, drilling is required before sampling. In the prior art, generally, a hand-held drilling machine is used for drilling operations, but there are the following disadvantages:

[0004] First, the labor intensity of using a hand-held drilling machine is relatively large;

[0005] Second, during the drilling process, the drilling direction is adjusted manually, so it is difficult to maintain the drilling operation in the vertical direction. When the drilling inclination angle is relatively large, the stability of the soil body is easily damaged greatly, and the drill hole is prone to collapse;

[0006] Third, due to the large water content in the coating layer of the water-rich sand layer, a large amount of water is likely to overflow from the drill hole during the drilling process. The buoyancy of this water acts on the drill bit of the drilling machine, making it difficult to drill the hole. Summary of the Invention

[0007] To solve the above problems, the present invention provides an auxiliary device for detecting water-rich sand layers used in tunnel construction, and the present invention is realized through the following technical solutions.

[0008] An auxiliary device for detecting water-rich sand layers used in tunnel construction includes a support base, a lifting device, a rotating device, and a drill rod;

[0009] At the four corners of the upper surface of the support base, support rods are fixedly connected, and at the top of each support rod, a support top seat is integrally fixedly connected;

[0010] The lifting device includes a lifting servo motor, a screw rod, and a lifting frame; four support rods are arranged in a rectangular shape on the support top seat, and a mounting seat is integrally fixed to the top of each support rod. The lifting servo motor is fixed to the lower surface of the mounting seat. The lifting servo motor is provided with a vertically downward output shaft, and a driving wheel is fixed to the bottom of the output shaft of the lifting servo motor. The screw rod is rotatably connected between the support base and the support top seat and is symmetrically arranged left and right. The top of each screw rod extends above the support top seat and is fixed with a transmission wheel. The transmission wheels on the left and right sides are jointly linked with the driving wheel through a belt. The left and right sides of the lifting frame are symmetrically fixed with threaded sleeves through connecting rods, and the threaded sleeves on the left and right sides are respectively engaged with the screw rods on the left and right sides;

[0011] The rotating device includes a rotating column and a rotating servo motor; the rotating column is rotatably connected to the center of the bottom plate of the lifting frame. A driven bevel gear is fixed to the part of the rotating column located inside the lifting frame. The rotating servo motor is fixed to the inner wall of the left side plate of the lifting frame. The rotating servo motor is provided with a horizontally rightward output shaft, and a driving bevel gear engaged with the driven bevel gear is fixed to the right end of the output shaft of the rotating servo motor;

[0012] The drill rod is fixed to the bottom of the rotating column, and a conical drill bit is fixed to the bottom of the drill rod. A through hole corresponding to the rotating rod is provided on the support base, and a spiral waste discharge blade is fixed to the outer wall of the drill rod.

[0013] Further, a conical anti-slip tooth is fixed to the lower surface of the support base.

[0014] Further, fixing seats are symmetrically fixed to the left and right sides of the support base, and a plugging and fixing rod is slidably connected in each fixing seat.

[0015] Further, the diameter of the driving wheel is larger than the diameter of the transmission wheel.

[0016] Further, a first cavity and a second cavity are respectively provided inside the rotating column and the drill rod. A through hole for communicating the first cavity and the second cavity is provided on the top plate of the drill rod. A connecting pipe is fixed to the lower surface of the top plate of the lifting frame. The connecting pipe is rotatably connected to the top plate of the rotating column. A water suction pipe is fixed to the bottom of the connecting pipe. The water suction pipe extends into the second cavity through the through hole. A filter screen is fixed to the lower part of the second cavity. The bottom of the water suction pipe is close to the upper surface of the filter screen. Water inlet holes are evenly arranged in a circumferential manner on the drill bit. A water pump is fixed to the inner wall of the right side plate of the lifting frame. The inlet and outlet of the water pump are respectively fixed with a water inlet hose and a water outlet hose. The head of the water inlet hose is connected to the connecting pipe, and the water outlet hose extends out of the lifting frame.

[0017] Further, a control switch is fixedly connected to the upper surface of the mounting base. The input end of the control switch is electrically connected to an external power supply, and the output ends of the control switch are respectively electrically connected to a water pump, a rotary servo motor, and a lifting servo motor. The control switch is used to control the rotation directions of the rotary servo motor and the lifting servo motor, and the control switch is also used to control the start and stop of the water pump, the rotary servo motor, and the lifting servo motor.

[0018] Further, a crankshaft is further included. The crankshaft is rotatably connected in a second cavity below the filter screen through symmetrically arranged left and right rotating shafts. Blades are evenly and circumferentially fixedly connected to each rotating shaft, and a connecting rod is hinged between the cross bar of the crankshaft and the lower surface of the filter screen.

[0019] The beneficial effects of the present invention are as follows: During use, the rotation of the drill rod is realized through the rotation device, and the vertical lifting of the drill rod is realized through the lifting device. Thus, the opening of a drill hole can be carried out through the drill rod, thereby solving the problems of high labor intensity of a handheld drilling machine and difficulty in maintaining a vertical drill hole. During the drilling process, through the operation of the water pump, the water overflowing from the drill hole can be timely discharged, avoiding the difficulty in drilling caused by the buoyancy of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 : Structural schematic diagram of an auxiliary device for detecting water-rich sand layers used in tunnel construction according to the present invention;

[0022] Figure 2 : Figure 1 Partial enlarged view of the position shown at A;

[0023] Figure 3 : Figure 1 Partial enlarged view of the position shown at B;

[0024] Figure 4 : Partial schematic diagram of the position of the support top seat according to the present invention;

[0025] Figure 5 : Partial schematic diagram of the position of the drill rod according to the present invention;

[0026] Figure 6 : Circuit connection schematic diagram of each circuit element in the present invention.

[0027] The reference numerals are as follows:

[0028] 1 - Support base, 11 - Support rod, 12 - Support top seat, 13 - Anti - slip teeth, 14 - Fixed seat, 15 - Cuttage fixing rod;

[0029] 21 - Lifting servo motor, 22 - Screw rod, 23 - Lifting frame, 24 - Support rod, 25 - Mounting seat, 26 - Driving wheel, 27 - Driven wheel, 28 - Belt, 29 - Connecting rod, 210 - Threaded sleeve;

[0030] 31 - Rotating column, 32 - Rotating servo motor, 33 - Driven bevel gear, 34 - Driving bevel gear;

[0031] 4 - Drill rod, 41 - Drill bit, 42 - Through hole, 43 - Waste discharging blade;

[0032] 51 - First cavity, 52 - Second cavity, 53 - Through - hole, 54 - Connecting pipe, 55 - Water suction pipe, 56 - Filter screen, 57 - Water inlet hole, 58 - Water pump, 59 - Water inlet hose, 510 - Water outlet hose;

[0033] 6 - Control switch;

[0034] 7 - Crankshaft, 71 - Rotating shaft, 72 - Propeller blade, 73 - Connecting rod. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. 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 protection scope of the present invention.

[0036] As Figures 1-6 shown, the present invention has the following four specific embodiments.

[0037] Embodiment 1

[0038] An auxiliary device for detecting water - rich sand layers in tunnel construction includes a support base 1, a lifting device, a rotating device, and a drill rod 4;

[0039] At the four corners of the upper surface of the support base 1, support rods 11 are fixedly connected, and at the top of each support rod 11, a support top seat 12 is integrally and fixedly connected;

[0040] The lifting device includes a lifting servo motor 21, a screw rod 22, and a lifting frame 23; four support rods 24 are arranged in a rectangular shape on the support top seat 12, and a mounting seat 25 is integrally fixed to the top of each support rod 24. The lifting servo motor 21 is fixed to the lower surface of the mounting seat 25. The lifting servo motor 21 is provided with a vertically downward output shaft, and a driving wheel 26 is fixed to the bottom of the output shaft of the lifting servo motor 21. The screw rod 22 is rotatably connected between the support base 1 and the support top seat 12 and is symmetrically arranged left and right. The top of each screw rod 22 extends above the support top seat 12 and is fixed with a transmission wheel 27. The transmission wheels 27 on the left and right sides and the driving wheel 26 are jointly linked by a belt 28. Symmetrically fixed to the left and right sides of the lifting frame 23 through connecting rods 29 are threaded sleeves 210, and the threaded sleeves 210 on the left and right sides are respectively engaged with the screw rods 22 on the left and right sides;

[0041] The rotating device includes a rotating column 31 and a rotating servo motor 32; the rotating column 31 is rotatably connected to the center of the bottom plate of the lifting frame 23. A driven bevel gear 33 is fixed to the part of the rotating column 31 located inside the lifting frame 23. The rotating servo motor 32 is fixed to the inner wall of the left side plate of the lifting frame 23. The rotating servo motor 32 is provided with a horizontally rightward output shaft, and a driving bevel gear 34 engaged with the driven bevel gear 33 is fixed to the right end of the output shaft of the rotating servo motor 32;

[0042] The drill rod 4 is fixed to the bottom of the rotating column 31. A conical drill bit 41 is fixed to the bottom of the drill rod 4. A through hole 42 corresponding to the rotating rod is provided on the support base 1. A spiral waste discharging blade 43 is fixed to the outer wall of the drill rod 4.

[0043] In this embodiment:

[0044] When the rotating servo motor 32 works, it drives the driving bevel gear 34 to rotate, and the driven bevel gear 33 engaged with the driving bevel gear 34 rotates, so that the rotating column 31 rotates and drives the drill rod 4 to rotate. At the same time, when the lifting servo motor 21 works, it drives the driving wheel 26 to rotate, and the driving wheel 26 drives the transmission wheels 27 and the screw rods 22 on the left and right sides to rotate through the belt 28. Since the lifting frame 23 is engaged with the screw rod 22 through the threaded sleeve 210, when the screw rod 22 rotates, it drives the lifting frame 23 to move vertically up and down, so that the drill rod 4 can simultaneously rotate and move vertically up and down.

[0045] During drilling, adjust the rotation direction of the lifting servo motor 21 to make the lifting frame 23 descend. After drilling is completed, make the lifting servo motor 21 and the rotating servo motor 32 rotate in the reverse direction, and the drill rod 4 can be smoothly lifted.

[0046] During the process of the drill rod 4 drilling, through the setting of the drill bit 41, the drilling efficiency is improved, and the waste discharging blade 43 rotates to smoothly discharge the broken soil generated during drilling.

[0047] Preferably, a conical anti-slip tooth 13 is fixedly connected to the lower surface of the support base 1.

[0048] Preferably, fixing seats 14 are symmetrically and fixedly connected to the left and right sides of the support base 1, and a cutting and fixing rod 15 is slidably connected in each fixing seat 14.

[0049] Through the arrangement of the anti-slip teeth 13, the stability of the device is improved. When reaching the drilling position, the cutting and fixing rod 15 is inserted into the soil body to fix the device.

[0050] Preferably, the diameter of the driving wheel 26 is larger than that of the transmission wheel 27.

[0051] The diameter of the driving wheel 26 is larger than that of the transmission wheel 27, so that the belt 28 can better fit with the transmission wheel 27 and the driving wheel 26.

[0052] Embodiment 2

[0053] The difference from Embodiment 1 is that the following contents are further included:

[0054] First cavities 51 and second cavities 52 are respectively arranged inside the rotating column 31 and the drill rod 4. A through hole 53 for communicating the first cavity 51 and the second cavity 52 is arranged on the top plate of the drill rod 4. A connecting pipe 54 is fixedly connected to the lower surface of the top plate of the lifting frame 23. The connecting pipe 54 is rotatably connected to the top plate of the rotating column 31. A water suction pipe 55 is fixedly connected to the bottom of the connecting pipe 54. The water suction pipe 55 extends into the second cavity 52 through the through hole 53. A filter screen 56 is fixedly connected to the lower part of the second cavity 52. The bottom of the water suction pipe 55 is close to the upper surface of the filter screen 56. Water inlet holes 57 are uniformly arranged on the circumference of the drill bit 41. A water pump 58 is fixedly connected to the inner wall of the right side plate of the lifting frame 23. The inlet and outlet of the water pump 58 are respectively fixedly connected with a water inlet hose 59 and a water outlet hose 510. The head of the water inlet hose 59 is connected to the connecting pipe 54, and the water outlet hose 510 penetrates out of the lifting frame 23.

[0055] In this embodiment:

[0056] During the drilling process, the water pump 58 works, so that the water in the drill hole enters the second cavity 52 below the filter screen 56 through the water inlet holes 57, is pumped through the water suction pipe 55, and is discharged to the outside through the water outlet hose 510, thereby timely discharging the water in the drill hole and avoiding the difficulty of drilling caused by the buoyancy of water.

[0057] Embodiment 3

[0058] The difference from Embodiment 2 is that the following contents are further included:

[0059] The upper surface of the mounting base 25 is fixedly connected with a control switch 6. The input end of the control switch 6 is electrically connected to an external power supply, and the output ends of the control switch 6 are respectively electrically connected to a water pump 58, a rotary servo motor 32, and a lifting servo motor 21. The control switch 6 is used to control the rotation directions of the rotary servo motor 32 and the lifting servo motor 21, and the control switch 6 is also used to control the start and stop of the water pump 58, the rotary servo motor 32, and the lifting servo motor 21.

[0060] In this embodiment:

[0061] The start and stop of the water pump 58, the rotary servo motor 32, and the lifting servo motor 21 can be controlled through the control switch 6. At the same time, the rotation directions of the rotary servo motor and the lifting servo motor 21 can also be controlled through the control switch 6, so as to facilitate the control of the entire drilling process.

[0062] Embodiment 4

[0063] The difference from Embodiment 3 is that the following content is also included:

[0064] It further includes a crankshaft 7. The crankshaft 7 is rotatably connected in the second cavity 52 below the filter screen 56 through symmetric left and right rotating shafts 71. Blade wheels 72 are evenly and fixedly connected to the circumferences of the rotating shafts 71. A connecting rod 73 is hinged between the cross bar of the crankshaft 7 and the lower surface of the filter screen 56.

[0065] In this embodiment:

[0066] During the drilling process, the water flowing in the second cavity 52 can drive the blade wheels 72 to rotate, thereby driving the crankshaft 7 to rotate. The crankshaft 7 drives the filter screen 56 to vibrate vertically through the connecting rod 73, so as to effectively avoid the blockage of the filter screen 56.

[0067] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific embodiments. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An auxiliary device for detecting water-rich sand layers for tunnel construction, characterized in that: It comprises a supporting base (1), a lifting device, a rotating device and a drill rod (4); Support rods (11) are fixedly connected at the four corners of the upper surface of the support base (1), and the top of each support rod (11) is integrally fixedly connected with a support top seat (12); The lifting device comprises a lifting servo motor (21), a screw rod (22) and a lifting frame (23); four support rods (24) are arranged in a rectangular shape on the support top seat (12); the top of each support rod (24) is integrally fixedly connected to a mounting seat (25); the lifting servo motor (21) is fixedly connected to the lower surface of the mounting seat (25); the lifting servo motor (21) is provided with an output shaft extending vertically downward; the bottom of the output shaft of the lifting servo motor (21) is fixedly connected to a driving wheel (26); the screw rod (22) The lifting frame (23) is rotatably connected between the support base (1) and the support top seat (12) and is symmetrically arranged on the left and right sides. The top of each screw rod (22) extends above the support top seat (12) and is fixedly connected to a transmission wheel (27). The transmission wheels (27) on the left and right sides are linked with the driving wheel (26) through a belt (28). The left and right sides of the lifting frame (23) are symmetrically fixedly connected with threaded sleeves (210) through connecting rods (29). The threaded sleeves (210) on the left and right sides are respectively engaged with the screw rods (22) on the left and right sides. The rotating device comprises a rotating column (31) and a rotating servo motor (32); the rotating column (31) is rotatably connected to the center of the bottom plate of the lifting frame (23); the portion of the rotating column (31) located inside the lifting frame (23) is fixedly connected to a driven bevel gear (33); the rotating servo motor (32) is fixedly connected to the inner wall of the left side plate of the lifting frame (23); the rotating servo motor (32) is provided with a horizontal rightward output shaft; the right end of the output shaft of the rotating servo motor (32) is fixedly connected to a driving bevel gear (34) meshing with the driven bevel gear (33); The drill rod (4) is fixedly connected to the bottom of the rotating column (31), a conical drill bit (41) is fixedly connected to the bottom of the drill rod (4), a through hole (42) corresponding to the rotating rod is provided on the support base (1), and a spiral waste discharge blade (43) is fixedly connected to the outer wall of the drill rod (4).

2. The auxiliary equipment for detecting water-rich sand layers for tunnel construction according to claim 1 is characterized in that: Conical anti-slip teeth (13) are fixedly connected to the lower surface of the support base (1).

3. The auxiliary equipment for detecting water-rich sand layers for tunnel construction according to claim 1 is characterized in that: The left and right sides of the support base (1) are symmetrically fixed with fixing seats (14), and each fixing seat (14) is slidably connected with a cutting fixing rod (15).

4. The auxiliary equipment for detecting water-rich sand layers for tunnel construction according to claim 1 is characterized in that: The diameter of the driving wheel (26) is greater than the diameter of the transmission wheel (27).

5. An auxiliary device for detecting water-rich sand layers for tunnel construction according to any one of claims 1 to 4, characterized in that: The rotating column (31) and the drill rod (4) are respectively provided with a first cavity (51) and a second cavity (52); a through hole (53) for connecting the first cavity (51) and the second cavity (52) is provided on the top plate of the drill rod (4); a connecting pipe (54) is fixedly connected to the lower surface of the top plate of the lifting frame (23); the connecting pipe (54) is rotatably connected to the top plate of the rotating column (31); a water pumping pipe (55) is fixedly connected to the bottom of the connecting pipe (54); the water pumping pipe (55) extends into the second cavity (52) through the through hole (53). ), a filter screen (56) is fixedly connected to the lower part of the second cavity (52), the bottom of the water suction pipe (55) is close to the upper surface of the filter screen (56), water inlet holes (57) are evenly arranged on the circumference of the drill bit (41), a water pump (58) is fixedly connected to the inner wall of the right side plate of the lifting frame (23), and the inlet and outlet of the water pump (58) are respectively fixedly connected to a water inlet hose (59) and a water outlet hose (510), the head of the water inlet hose (59) is connected to the connecting pipe (54), and the water outlet hose (510) passes through the lifting frame (23) to the outside.

6. The auxiliary equipment for detecting water-rich sand layers for tunnel construction according to claim 5, characterized in that: A control switch (6) is fixedly connected to the upper surface of the mounting seat (25); an input end of the control switch (6) is electrically connected to an external power supply; an output end of the control switch (6) is electrically connected to a water pump (58), a rotating servo motor (32) and a lifting servo motor (21), respectively; the control switch (6) is used to control the direction of the rotating servo motor (32) and the lifting servo motor (21); and the control switch (6) is also used to control the start and stop of the water pump (58), the rotating servo motor (32) and the lifting servo motor (21).

7. The auxiliary equipment for detecting water-rich sand layers for tunnel construction according to claim 5, characterized in that: The invention also comprises a crankshaft (7), wherein the crankshaft (7) is rotatably connected to a second cavity (52) below the filter screen (56) via a left-right symmetrical rotating shaft (71), and blades (72) are evenly fixedly connected to the circumference of each rotating shaft (71). A connecting rod (73) is hinged between a cross bar of the crankshaft (7) and the lower surface of the filter screen (56).

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