CN216449199U - A survey sampling device for tunnel ground - Google Patents

Abstract

The utility model belongs to the technical field of engineering equipment, in particular to a survey and sampling device for tunnel rock and soil, which comprises: a base; an n-shaped base frame, the lower end of which is fixedly connected to the base; A first beam is slidably connected between the parts; a lifting mechanism is used to drive the first beam to move up and down; a second rotating motor is fixedly connected to the first beam, and its output shaft is downward and connected to one end of the first drilling rod, and the second rotating motor is connected to the first beam. A first drill bit is connected to the second end of a drilling rod; a second beam is fixedly connected to the second rotating motor and is parallel to the first beam, and both ends of the second beam are respectively provided with a third rotating motor, which outputs The shaft is downward and one end of the second drill rod is connected, and the other end of the second drill rod is connected with a second drill bit; the traverse mechanism is used to drive the third motor to move horizontally on the second beam. The sampling device provided by the utility model can adjust the sampling radius according to the requirements, so as to obtain rock and soil samples of different sizes.

Description

A survey and sampling device for tunnel geotechnical

technical field

The utility model belongs to the technical field of engineering equipment, in particular to a survey sampling device for tunnel rock and soil.

Background technique

In the process of tunnel construction, sampling the rock and soil of the construction site is an indispensable link, because the samples taken out have a high reference value for judging whether the geological structure of the site is suitable for tunnel excavation.

The existing survey and sampling device for tunnel geotechnical adopts the scheme of using a drill bit to drill down from the ground to a certain depth, drilling the geotechnical soil into powder, and then collecting the geotechnical powder for observation and detection. But in fact, the structure and other properties of the rock and soil at different depths may be very different. Mixing the drilled rock and soil disturbs the structure of each layer of rock and soil. It may be wrong, and once the judgment is wrong, it is undoubtedly very dangerous to carry out tunnel construction in a location that is not suitable for tunnel excavation. Therefore, some sampling devices now use sampling cylinders to conduct overall sampling of rock and soil at a certain depth to solve the problem. The problem that geotechnical soils of different depths are confused with each other and affect the detection. However, the sampling tube has an obvious defect: the diameter of the tube is fixed, and if a large amount of soil and rock needs to be taken, the sampling tube can only be replaced or taken multiple times, and the sampling efficiency is low. In conclusion, there is a need for a sampling device, which can flexibly adjust the sampling diameter according to sampling needs while sampling the entire rock and soil.

Utility model content

In view of the above-mentioned deficiencies of the prior art, the utility model provides a survey and sampling device for tunnel rock and soil.

The utility model provides a survey and sampling device for tunnel rock and soil, comprising:

annular base;

The base frame is n-shaped, and its lower end is fixedly connected to the base; a first beam is slidably connected between the two vertical parts of the base frame;

The lifting mechanism is used to drive the first beam to move up and down;

a second rotary electric machine, which is fixedly connected with the first beam, and the output shaft of the second rotary electric machine is downward, and is connected with the first end of the first drilling rod, and the second end of the first drilling rod is connected with the first drill bit;

The second beam is fixedly connected with the second rotating electrical machine and is parallel to the first beam. Both ends of the second beam are respectively provided with a third rotating electrical machine. The output shaft of the third rotating electrical machine is downward and connected with the second rotating electrical machine the first end of the drilling rod, the second end of the second drilling rod is connected with a second drill bit;

The traverse mechanism is used for driving the third rotating motor to move horizontally on the second beam.

Preferably, the lifting mechanism includes:

Two vertical lead screws, the lower end of the lead screw is rotatably connected with the base, and the upper end of the lead screw is rotatably connected with the base frame, the upper ends of the lead screws pass through the horizontal part of the base frame, and a second bevel gear is fixed horizontally;

The first rotary motor is fixedly arranged on the top of the base frame, the first rotary motor is a double-head motor, and a first bevel gear is respectively connected to its two output shafts, and the first bevel gear meshes with the second bevel gear;

The two internally threaded pipes are respectively screwed with a lead screw and respectively connected with one end of the first beam.

Preferably, it also includes a dust box, which is a box body with an open bottom surface and closed other sides, the dust box is sleeved on the outside of the second bevel gear and the first rotating electrical machine, and its opening is on the side of the horizontal part of the base frame Wall fixed connection.

Preferably, a cavity is provided inside the second beam and both the bottom and the top thereof are open. The cavity is provided with two sets of parallel annular tooth grooves. Both ends of the annular tooth groove are meshed with vertical gears. There are two first connecting blocks between them, each first connecting block is respectively rotatably connected with two gears at the same end of the two annular tooth slots, the first connecting block is fixedly connected with the third rotating electrical machine, and the third rotating electrical machine is The output shaft vertically passes through the first connecting block and the second beam.

Preferably, the traverse mechanism includes:

The second connecting block is penetrated in the vertical direction and is fixed at the middle position of the length direction of the second beam, the output shaft of the second rotating electrical machine is fixedly connected with the middle position of the top surface of the second connecting block, the first drilling rod The first end is fixedly connected with the middle position of the bottom surface of the second connecting block;

There are two threaded rods, which are arranged in the interior of the second beam and on both sides of the second connecting block in the horizontal direction, one end of which is rotatably connected with the second connecting block, and the other end passes through the second connecting block and the second beam and passes One end is connected with a rotating button, and the threaded rod is threadedly connected with the second connecting block.

Preferably, the lower surface of the base is provided with a non-slip thorn pad.

Preferably, the first drill bit has the same length as the second drill bit, but has a larger diameter, and the diameter of the first drill rod is larger than that of the second drill rod.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model provides a survey and sampling device for tunnel rock and soil, which realizes the purpose of flexibly adjusting the sampling radius according to needs during rock and soil sampling through two second drilling rods that can slide left and right.

(2) a kind of survey and sampling device for tunnel rock and soil provided by the present utility model, the larger diameter of the first drill bit can increase the friction force between the drill bit and the rock and soil, and it is convenient to take off the rock and soil sample after sampling; Its second, smaller diameter drill bit reduces friction with the soil during horizontal rotation, making drilling easier.

(3) The utility model provides a survey and sampling device for tunnel rock and soil, and the anti-slip thorn pad under the base can increase the grip of the device during construction on uneven ground and reduce shaking during construction.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a front sectional view of a survey and sampling device for tunnel rock and soil provided by the utility model.

Description of reference numbers:

1- Base frame, 2- First beam, 3- Internal thread pipe, 4- Lead screw, 5- First rotating motor, 6- First bevel gear, 7- Second bevel gear, 8- Dust box, 9 -Second rotary motor, 10-First drill rod, 11-First drill bit, 12-Second beam, 13-Gear, 14-Third rotary motor, 15-Second drill bit, 16-Base, 17-Anti-slip spike Pad, 18-Second Drill Rod, 19-Threaded Rod, 20-Turn Knob.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

This embodiment provides a survey and sampling device for tunnel geotechnical soil, as shown in FIG. 1 , which includes:

The annular base 16 is provided with a non-slip thorn pad 17 on its bottom surface;

The base frame 1 is n-shaped, and its lower end is fixedly connected to the base 16; a first beam 2 is slidably connected between the two vertical parts of the base frame 1;

The lifting mechanism is used to drive the first beam 2 to move up and down, and it includes: two vertical lead screws 4, the lower end of the lead screw 4 is rotatably connected with the base 16, the upper end thereof is rotatably connected with the base frame 1, and the upper end of the lead screw 4 is rotatably connected with the base frame 1. They all pass through the horizontal part of the base frame 1, and are fixed horizontally with a second bevel gear 7; the first rotary motor 5 is fixed on the top of the base frame 1, and it is a double-headed motor, and its two output shafts are respectively Connected with a first bevel gear 6, the first bevel gear 6 and the second bevel gear 7 mesh; two internally threaded pipes 3, which are respectively screwed with a lead screw 4, and are respectively connected with one end of the first beam 2;

The second rotating electrical machine 9 is fixedly connected with the first beam 2 , and the output shaft of the second rotating electrical machine 9 is downward, and is connected with the first end of the first drilling rod 10 , and the second end of the first drilling rod 10 is connected There is a first drill bit 11;

The second beam 12 is fixedly connected to the second rotating electrical machine 9 and is parallel to the first beam 2 . The second beam 12 is provided with a cavity inside and its bottom and top are both open, and two sets of parallel annular rings are arranged in the cavity The tooth slot, both ends of the annular tooth slot are meshed with vertical gears 13, two first connection blocks are arranged between the two annular tooth slots, and each first connection block is respectively connected with the two annular tooth slots at the same end. The gears are connected in rotation, the first connecting block is fixedly connected with the third rotating electrical machine 14, and the output shaft of the third rotating electrical machine 14 vertically passes through the first connecting block and the second beam 12 and is connected with the vertically arranged second drilling rod 18 The first end of the second drill rod 18 is fixedly connected, and the second end of the second drill rod 18 is fixedly connected with the second drill bit 15;

The traverse mechanism is used to drive the third rotating motor 14 to move horizontally on the second beam 12, and it includes: a second connecting block, which is penetrated in the vertical direction and fixed at the middle position in the length direction of the second beam 12, The output shaft of the second rotary electric machine 9 is fixedly connected with the middle position of the top surface of the second connecting block, the first end of the first drilling rod 10 is fixedly connected with the middle position of the bottom surface of the second connecting block; the threaded rod 19 has two , is arranged in the interior of the second beam 12 and on both sides of the second connecting block in the horizontal direction, one end of which is rotatably connected with the second connecting block, the other end passes through the second connecting block and the second beam 12, and one end is connected with a rotating knob. 20, and the threaded rod 19 is threadedly connected with the second connecting block.

The working principle of the survey and sampling device for tunnel geotechnical provided by this embodiment is as follows:

When geotechnical sampling is required for a certain place, the device is first aligned with the sampling point, and then the first rotating motor 5 is controlled to rotate to drive the first bevel gear 6 to rotate vertically, the first bevel gear 6 and the second bevel gear 7 The second bevel gear 7 further drives the lead screw 4 connected to it to rotate. When the lead screw 4 rotates in the inner thread pipe 3, the inner thread meshes with the outer thread and moves continuously, thus driving the inner thread pipe 3 Moving downward, the first beam 2 fixedly connected with the internally threaded pipe 3 therefore moves downward synchronously. When the first beam 2 drives the first drill bit 11 downward until the first drill bit 11 contacts the sampling point, the second rotary motor 9 and the third rotary motor 14 are turned on, and the third rotary motor 14 is driven by rotating the threaded rod 19 at the same time. Moving left and right, the third rotary motor 14 further drives the second drill bit 15 to move left and right to adjust the sampling radius. When the sampling radius is adjusted, the first rotary motor 5 is controlled to continue to rotate in the same direction, the first drill bit 11 drills vertically downward into the ground, and the second drill bit 15 continuously rotates while drilling downwards, thereby drilling out the whole Block geotechnical samples.

In a further embodiment of this embodiment, the diameter of the first drill rod 10 is larger than the diameter of the second drill rod 18 , and the diameter of the first drill bit 11 is larger than that of the second drill bit 15 . The smaller diameters of the second drill rod 18 and the second drill bit 15 can reduce the resistance of the drill bit during rotary drilling, and the larger diameter of the first drill rod 10 and the first drill bit 11 has greater friction between the soil and the rock, which can prevent the The geotechnical sample slipped during removal.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalents, the present utility model is also intended to include these modifications and variations.

Claims (7)

1. a survey sampling device for tunnel geotechnical, is characterized in that, comprises: an annular base (16); a base frame (1), which is n-shaped, the lower end of which is fixedly connected to the base (16); a first beam (2) is slidably connected between two vertical parts of the base frame (1); a lifting mechanism for driving the first beam (2) to move up and down; The second rotating electrical machine (9) is fixedly connected with the first beam (2), the output shaft of the second rotating electrical machine (9) is downward, and is connected with the first drill rod (10). The second end of the first drilling rod (10) is connected with a first drill bit (11); A second beam (12) is fixedly connected to the second rotating electrical machine (9) and is parallel to the first beam (2), two ends of the second beam (12) are respectively provided with a third beam A rotary electric machine (14), the output shaft of the third rotary electric machine (14) is downward, and is connected with a first end of a second drilling rod (18), and the second end of the second drilling rod (18) is connected There is a second drill bit (15); The traverse mechanism is used for driving the third rotating motor (14) to move horizontally on the second beam (12). 2 . The survey and sampling device for tunnel geotechnical according to claim 1 , wherein the lifting mechanism comprises: 2 . Two vertical lead screws (4), the lower ends of the lead screws (4) are rotatably connected to the base (16), and the upper ends of the lead screws (4) are rotatably connected to the base frame (1). The upper ends of the base frame (1) all pass through the horizontal part of the base frame (1), and a second bevel gear (7) is fixed horizontally; A first rotating electrical machine (5) is fixedly arranged on the top of the base frame (1), the first rotating electrical machine (5) is a double-headed motor, and two output shafts thereof are respectively connected with a first bevel gear ( 6), the first bevel gear (6) meshes with the second bevel gear (7); Two internally threaded pipes (3) are screwed with one of the lead screws (4) respectively, and are respectively connected with one end of the first beam (2). 3. A surveying and sampling device for tunnel geotechnical soil according to claim 2, characterized in that, further comprising a dust-proof box (8), which is a box body with an open bottom surface and closed other surfaces. The dust box (8) is sleeved on the outside of the second bevel gear (7) and the first rotating electrical machine (5), and its opening is fixedly connected with the side wall of the horizontal portion of the base frame (1). 4. A surveying and sampling device for tunnel geotechnical according to claim 1, characterized in that, the second beam (12) is provided with a cavity inside and both the bottom and the top thereof are open, and the cavity is open. Two sets of parallel annular tooth slots are arranged inside, vertical gears (13) are engaged with both ends of the annular tooth slots, and two first connection blocks are arranged between the two annular tooth slots, each of which is The first connecting blocks are respectively rotatably connected with two gears at the same end of the two annular tooth slots, the first connecting blocks are fixedly connected with the third rotating electrical machine (14), and the third rotating electrical machine (14) ) of the output shaft vertically passes through the first connecting block and the second beam (12). 5 . The survey and sampling device for tunnel geotechnical according to claim 4 , wherein the traverse mechanism comprises: 5 . A second connection block, which passes through the vertical direction and is fixed at the middle position in the length direction of the second beam (12), and the output shaft of the second rotating electrical machine (9) is connected to the top of the second connection block. The middle position of the surface is fixedly connected, and the first end of the first drilling rod (10) is fixedly connected with the middle position of the bottom surface of the second connecting block; There are two threaded rods (19), which are arranged in the horizontal direction inside the second beam (12) and on both sides of the second connecting block. A rotating knob (20) is connected through the second connecting block and the second beam (12), and the threaded rod (19) is threadedly connected with the second connecting block. 6. A surveying and sampling device for tunnel geotechnical soil according to claim 1, characterized in that, a non-slip thorn pad (17) is provided on the lower surface of the base (16). 7. A surveying and sampling device for tunnel geotechnical soil according to claim 1, characterized in that the first drill bit (11) and the second drill bit (15) have the same length, but have a larger diameter , the diameter of the first drilling rod (10) is larger than the diameter of the second drilling rod (18).

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