CN209841417U - Electric rotary soil sampling device for backfill field - Google Patents

Abstract

An electric rotary soil sampling device for a backfill site, comprising a motor, a support frame and a soil borrower, the motor drives the soil borrower to perform soil sampling operation, and is characterized in that: the soil borrower comprises an electric rotary drill pipe, a connecting piece, a soil borrowing device Cavity, ring cutter and earth borrowing bit, the earth borrowing cavity is a cylindrical structure composed of a left half and a right half butt joint, the two ends of the earth borrowing cavity are respectively detachably connected with the connecting piece and the earth borrowing bit, so The two ends of the electric rotary drill pipe are respectively connected to the connecting piece and the motor, the ring cutter is placed in the cavity of the soil borrowing cavity, the soil borrowing bit is a hollow structure, and its interior is communicated with the soil borrowing cavity, and the soil borrowing bit is The edge of the bottom opening is a circular cutting edge; a spiral blade is also installed on the outer peripheral surface of the soil extractor.

Description

An electric rotary soil sampling device for backfill site

technical field

The utility model belongs to the field of backfilling soil rolling construction, in particular to an electric rotary soil sampling device for backfilling soil sites.

Background technique

Site backfill compaction is widely used in the foundations of roads, railways, water conservancy and civil buildings. There are many methods for testing the quality of backfill soil after backfilling and rolling, including drilling rig dynamic penetration method, static penetration method, static load experiment method, compaction experiment and ring-knife borrowing method.

The compaction experiment and the ring-knife soil sampling method are as follows: (1) First, take a number of loose soil samples to be backfilled and compacted at the site. (2) Then use a ring knife to collect soil at the site after backfilling and compaction, and use the electronic balance and balance the collected soil sample in the laboratory or on-site. The dry density of the backfill soil after rolling is obtained by using test equipment such as an oven; (3) the dry density after on-site rolling is compared with the maximum dry density obtained by the compaction experiment, which is the compaction coefficient, which is determined according to the size of the compaction coefficient. The quality of the backfill after rolling. Therefore, taking the soil sample after rolling on site is the key link, which directly affects the density after rolling.

At present, the commonly used soil extraction method is to directly place the ring knife on the position to be extracted, then place a gasket, hit the gasket with a hand hammer to smash the ring knife into the soil, so that the depth of the ring knife into the soil is limited, and the ring knife is smashed into the soil. It is also very difficult to take out the knife. It needs to be dug out with a digging tool, which is very inefficient and has a high labor cost. In addition, there are currently manual soil harvesters with handles, which use human pressure to take soil samples. The pressure is limited, and it is difficult to take out dense soil samples. Similarly, soil sampling is also required, which is inefficient and may damage the soil samples.

Utility model content

The purpose of the utility model is to provide an electric rotary soil sampling device for backfilling soil sites. soil samples obtained.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is:

An electric rotary soil sampling device for a backfill site, comprising a motor, a support frame and a soil borrower, the electric motor drives the soil borrower to perform soil sampling operation, and the soil borrower includes an electric rotary drill pipe, a connecting piece, a soil borrowing cavity, and a ring cutter And the soil borrowing bit, the soil borrowing cavity is a cylindrical structure composed of a left half and a right half, and the two ends of the soil borrowing cavity are detachably connected with the connecting piece and the soil borrowing bit respectively, and the electric rotary drill The two ends of the rod are respectively connected to the connecting piece and the motor, the ring cutter is placed in the cavity of the soil borrowing cavity, the soil borrowing bit is a hollow structure, and its interior is communicated with the soil borrowing cavity, and the bottom opening edge of the soil borrowing bit is A circular cutting edge; a spiral blade is also installed on the outer peripheral surface of the earth extractor.

Both ends of the soil borrowing cavity are connected by threads, connecting pieces and soil borrowing bits.

Both ends of the soil borrowing cavity are threaded connection ends, a cavity for placing the ring cutter is between the two threaded connection ends, and the diameter of the threaded connection end is smaller than the diameter of the cavity.

The electric rotary drill pipe and the connecting piece are connected by a key, and the top end of the electric rotary drill pipe is provided with a connection sleeve connected with the rotating shaft of the motor.

The support frame is composed of a support plate, a support leg and a conduit, the support leg and the support plate are fixedly connected, and the conduit vertically passes through the support plate and is fixed to the center of the support plate.

The helical blades are welded in sections to the outside of the connecting piece, the soil borrowing cavity and the soil borrowing bit.

The working principle and beneficial effects of the present utility model are:

The utility model is driven by a motor to rotate the earth borrower, and the spiral blades on the outer periphery of the earth borrower rotate accordingly to drill into the soil layer, so that the earth borrower enters the soil. The soil sample is cut with a shaped cutting edge, the cut soil sample enters the soil sampling cavity, and the soil sample in the soil sampling cavity is cut by the ring knife. The soil sample in the ring knife is separated from the soil between the ring knife and the cavity, so that the subsequent It is easier to take out the ring knife, and the soil sample in the ring knife will not be damaged; in the utility model, because the soil sampling cavity where the ring knife is placed is composed of two parts, the taking and placing of the ring knife is more convenient, In addition, the diameter of both ends of the borrowing cavity is small, and the diameter of the cavity is relatively large, so that an annular platform is formed between the cavity and the threaded connection end, so as to prevent the ring knife from falling out of the borrowing cavity; Therefore, the screw blade adopts the method of segmented fixed installation. After the earth borrower is assembled, the segmented spiral blade forms a continuous spiral, which completes the drilling of the earth borrower. And withdrawal, the withdrawal of the earth extractor can be realized by reversing the motor.

Description of drawings

Fig. 1 is the general assembly drawing of the present utility model;

Fig. 2 is the structural representation of the support frame in the present utility model;

Fig. 3 is the structural representation of the soil extractor in the present utility model;

Figure 4 is an exploded view of the main body of the earth borrower in the present utility model;

Markings in the figure: 1. Electric motor, 2. Support frame, 3. Borrower, 4. Support plate, 5. Conduit, 6. Outrigger, 7. Connecting sleeve, 8. Electric rotary drill pipe, 9. Connecting piece, 10 , Borrowing cavity, 101, threaded connection end, 102, cavity, 103, annular platform, 11, ring cutter, 12, soil borrowing bit, 13, spiral blade, 14, circular cutting edge.

Detailed ways

The technical solutions of the present utility model will be further described below through specific embodiments in conjunction with the accompanying drawings.

As shown in the figure, an electric rotary soil sampling device for a backfill site includes a motor 1, a support frame 2 and a soil extractor 3. The motor 1 adopts a 220V micro-motor, and the support frame 2 consists of a support plate 4, a support leg 6 and the conduit 5 are formed, the outriggers 6 are provided with three, the three outriggers 6 and the support plate 4 are fixedly connected, the conduit 5 vertically passes through the support plate 4, and is fixed to the center of the support plate 4; the soil extractor 3 It includes an electric rotary drill pipe 8, a connector 9, a soil borrowing cavity 10, a ring cutter 11 and a soil borrowing bit 12. The soil borrowing cavity 10 is a cylindrical cavity structure composed of a left half and a right half. The two ends of the cavity 10 are respectively the threaded connection ends 101 connecting the connecting piece 9 and the soil borrowing bit 12. The soil borrowing cavity 10, the connecting piece 9 and the soil borrowing bit 12 are threadedly connected to form the main body of the soil borrowing device, and the connecting piece 9 and After the soil borrowing bit 12 is threadedly connected with the soil borrowing cavity 10, the left half and the right half of the soil borrowing cavity 10 can be fixed together, and the cavity 102 inside the soil borrowing cavity 10 is located between the two threaded connection ends 101, And the diameter of the cavity part is larger than the diameter of the threaded connection end 101, so that an annular platform 103 is formed between the cavity 102 and the threaded connection end 101, and the ring cutter 11 is placed in the cavity 102 of the soil borrowing cavity 10. Both ends of 11 are limited in the cavity 102 due to the existence of the annular platform 103 and will not fall out; the soil borrowing bit 12 is a hollow structure, the interior of which is communicated with the soil borrowing cavity 10, and the lower end of the soil borrowing bit 12 is a constriction. Structure, the lower edge is a circular cutting edge 14; the outer peripheral surface of the soil extractor 3 is provided with a helical blade 13, and the helical blade 13 is welded in sections to the outside of the connecting piece 9, the soil borrowing cavity 10 and the soil borrowing bit 12. After the main body of the earth borrower is formed by the component 9, the earth borrowing cavity 10 and the earth borrowing bit 12, the segmented helical blades 13 are subsequently formed into a continuous spiral shape.

The rotating shaft of the electric motor 1 passes through the guide tube 5 downward, and is splined with the connecting sleeve 7 at the top of the electric rotary drill pipe 8, and the bottom end of the electric rotary drill pipe 8 is connected with the connector 9 of the earth extractor 3, so that the motor 1. The earth extractor 3 can be driven to rotate forward or reverse through the electric rotary drill pipe 8.

When in use, the user holds the motor 1 and operates the motor 1 to rotate forward, so that the forward rotation of the earth extractor 3 can be realized to drill into the soil for sampling, and the support frame 2 and the conduit 5 can ensure the vertical rotation of the motor shaft and the electric rotary drill pipe 8. state, to avoid the adverse effects caused by the tilting rotation; when lifting the drill, operate the motor 1 to reverse the direction to lift out the earth extractor 3, and then separate the earth extraction cavity 10 from the connecting piece 9 and the earth borrowing bit 12, and then the ring can be taken out. Knife 11 to get the soil sample taken.

Claims (6)

1. The utility model provides a backfill place electronic gyration sample device that fetches earth, includes motor (1), support frame (2) and geotome (3), carries out the operation of the sample of fetching earth by motor (1) drive geotome (3), its characterized in that: the soil sampler (3) comprises an electric rotary drill rod (8), a connecting piece (9), a soil sampling cavity (10), a cutting ring (11) and a soil sampling drill bit (12), wherein the soil sampling cavity (10) is a cylindrical structure formed by combining a left half part and a right half part, two ends of the soil sampling cavity (10) are respectively detachably connected with the connecting piece (9) and the soil sampling drill bit (12), two ends of the electric rotary drill rod (8) are respectively connected with the connecting piece (9) and the motor (1), the cutting ring (11) is placed in a cavity (102) of the soil sampling cavity (10), the soil sampling drill bit (12) is of a hollow structure, the interior of the soil sampling drill bit is communicated with the soil sampling cavity, and the bottom opening edge of the soil sampling drill bit (12) is a circular cutting edge (14); a helical blade (13) is also mounted on the outer peripheral surface of the soil sampler (3).

2. The electric rotary soil sampling device for the backfill soil site according to the claim 1, characterized in that: the two ends of the soil sampling cavity (10) are connected with the connecting piece (9) and the soil sampling drill bit (12) through threads.

3. The electric rotary soil sampling device for the backfill soil site according to the claim 1, characterized in that: the soil sampling cavity is characterized in that threaded connection ends (101) are arranged at two end parts of the soil sampling cavity (10), the cavity is arranged between the two threaded connection ends (101), and the diameter of each threaded connection end (101) is smaller than that of the cavity (102).

4. The electric rotary soil sampling device for the backfill soil site according to the claim 1, characterized in that: the electric rotary drill rod (8) is connected with the connecting piece (9) through a key, and a connecting sleeve (7) connected with a motor rotating shaft is arranged at the top end of the electric rotary drill rod (8).

5. The electric rotary soil sampling device for the backfill soil site according to the claim 1, characterized in that: the support frame (2) is composed of a support plate (4), support legs (6) and a guide pipe (5), the support legs (6) are fixedly connected with the support plate (4), and the guide pipe (5) vertically penetrates through the support plate (4) and is fixedly connected to the center of the support plate (4).

6. The electric rotary soil sampling device for the backfill soil site according to the claim 1, characterized in that: the helical blade (13) is welded to the outside of the connecting piece (9), the soil taking cavity (10) and the soil taking drill bit (12) in a segmented mode.