Vibrating and impacting device for penetrating through cemented stratum

Abstract

The vibroflotation device comprises a vibroflotation device, the vibroflotation device is connected with a pneumatic hammer through a base, the side surface of the vibroflotation device is connected with a plurality of wing plates, and the base is connected with the pneumatic hammer through reinforcing ribs. An air inlet pipe is arranged on the side surface of the vibroflot and connected with an air inlet of the pneumatic hammer, the air inlet is communicated with the air outlet through a pipeline in the pneumatic hammer, and an impact head is connected to the bottom of the pneumatic hammer; under the working condition that rotary excavating or percussion drill hole guiding is not needed, the device has higher drilling capacity and can rapidly penetrate through the cemented stratum, the progress is accelerated, the cost is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, and particularly relates to a vibroflotation device for crossing cemented strata. Background Art

[0002] In the development of water conservancy and hydropower projects, vibroflotation gravel piles are a common means to deal with the problem of deep overburden; the hole-making of the vibroflot is one of the important links in the construction of vibroflotation gravel piles. During the construction of vibroflotation gravel piles, the vibroflot generates a horizontal vibration force through the eccentric block during rotation for vibration compaction, and the downward drilling force mainly depends on the gravity generated by the self-weight of the vibroflot and its guide rod. When encountering a cemented stratum, it is difficult for a conventional vibroflot to penetrate this stratum and form a hole. Assisting in hole formation through rotary drilling or percussion drilling is time-consuming, has low work efficiency, and high cost; therefore, it is necessary to design a vibroflotation device for crossing cemented strata to solve the above problems. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a vibroflotation device for crossing cemented strata. Under the working condition without the need for rotary drilling or percussion drilling to assist in hole formation, this device has stronger drilling ability, can quickly cross the cemented stratum, speed up the progress, save costs, and improve work efficiency.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is as follows:

[0005] A device for crossing cemented strata includes a vibroflot. The vibroflot is connected to a pneumatic hammer through a base. A plurality of wing plates are connected to the side surface of the vibroflot. The base and the pneumatic hammer are connected through a reinforcing rib; an air inlet pipe is arranged on the side surface of the vibroflot. The air inlet pipe is connected to the air inlet of the pneumatic hammer. The air inlet is communicated with the air outlet through a pipeline inside the pneumatic hammer. An impact head is connected to the bottom of the pneumatic hammer.

[0006] Further, the inside of the wing plate is hollow. The top of the wing plate is provided with a water inlet connected to an external water source. The bottom of the wing plate is provided with a water outlet for flushing the position of the working surface during lowering; internal threads are arranged on the inner wall of the water outlet and are blocked by a cover plate with bolts.

[0007] Preferably, the impact head is connected to the pneumatic hammer through a socket head cap screw to form an integral body.

[0008] Preferably, the impact head is selected from a multi-spike impact head or a single-spike impact head according to the formation conditions.

[0009] Further, the surface of the pneumatic hammer is built up with a hard alloy electrode with a hardness HRC of not less than 80 degrees, making its surface firm and wear-resistant.

[0010] The beneficial effects of the vibroflotation device for crossing cemented strata provided by the utility model are as follows:

[0011] When the device is under construction and there is no need for rotary drilling or percussion drilling to lead holes, it has stronger drilling ability, can quickly penetrate the cemented formation, speed up the progress, save costs and improve work efficiency; it solves the problem that when the existing technology encounters a cemented formation, it is difficult for a conventional vibroflot to penetrate the formation and form holes, and it is necessary to assist in forming holes through rotary drilling or percussion drilling, which is time-consuming, has low work efficiency and high costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] In the figure: vibroflot 1, air inlet pipe 2, wing plate 3, base 4, air inlet 5, pneumatic hammer 6, air outlet 7, headless stop screw 8, impact head 9, reinforcement rib 10. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Embodiment 1:

[0016] As Figure 1 shown in, a device for penetrating a cemented formation includes a vibroflot 1. The vibroflot 1 is connected to a pneumatic hammer 6 through a base 4. A plurality of wing plates are connected to the side surface of the vibroflot 1. The base 4 and the pneumatic hammer 6 are connected through a reinforcement rib 10. An air inlet pipe 2 is arranged on the side surface of the vibroflot 1. The air inlet pipe 2 is connected to the air inlet 5 of the pneumatic hammer 6. The air inlet 5 is communicated with the air outlet 7 through a pipeline inside the pneumatic hammer 6. An impact head 9 is connected to the bottom of the pneumatic hammer 6.

[0017] Furthermore, the inside of the wing plate is hollow. A water inlet is arranged at the top of the wing plate and is connected to an external water source. A water outlet is opened at the bottom of the wing plate for flushing the position of the working surface to be lowered; internal threads are arranged on the inner wall of the water outlet, and are blocked by a cover plate with bolts.

[0018] Preferably, the impact head 9 is connected to the pneumatic hammer 6 through a headless stop screw 8 to form an integral body.

[0019] Preferably, the impact head 9 is selected as a multi-spike impact head 9 or a single-spike impact head 9 according to the formation conditions.

[0020] Furthermore, the surface of the pneumatic hammer 6 is built up with a hard alloy electrode with a hardness HRC not lower than 80 degrees to make its surface firm and wear-resistant.

[0021] The working principle of the above-mentioned vibroflot device for penetrating a cemented formation is as follows:

[0022] During use, the pneumatic hammer 6 is controlled by controlling a pneumatic valve, so that the pneumatic hammer 6 drives the multi-spike impact head 9 to generate a strong impact force, enabling the vibroflot 1 to quickly drill through the cemented formation.

Claims

1. A vibroflotation device for crossing cemented formations, characterized in that: It includes a vibroflot (1), the vibroflot (1) is connected to a pneumatic hammer (6) through a base (4), a plurality of wing plates (3) are connected to the side surface of the vibroflot (1), and the base (4) and the pneumatic hammer (6) are connected through a reinforcing rib (10); an air inlet pipe (2) is arranged on the side surface of the vibroflot (1), the air inlet pipe (2) is connected to an air inlet of the pneumatic hammer (5), the air inlet (5) is communicated with an air outlet (7) through a pipeline inside the pneumatic hammer (6), and a chisel bit (9) is connected to the bottom of the pneumatic hammer (6).

2. The vibroflotation device for crossing the cemented formation according to claim 1, characterized in that: The chisel bit (9) is connected to the pneumatic hammer (6) through a socket head cap screw (8) to form an integral body.

3. The vibroflotation device for crossing the cemented formation according to claim 1, characterized in that: The chisel bit (9) is selected as a multi-spike chisel bit or a single-spike chisel bit according to the formation conditions.

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