Gobi mud layer rotary excavating drill soil discharging mechanism

Abstract

The utility model discloses a gobi mud layer rotary excavating drill soil discharging mechanism, belongs to the field of soil discharging, and aims to solve the problems that drilling cuttings are easy to lose in the lifting process and cannot be effectively loaded into a drill bit. Through the synergistic effect of the pressing disc and the triangular cutting disc, efficient cutting and collecting of rock soil are achieved. In the operation process, the pressing disc and the triangular cutting disc rotate and move downwards, rock soil is compacted and blocked, and it is ensured that complete rock soil blocks can be taken out every time soil is discharged. According to the design, repeated operation is reduced, the construction period is shortened, and the engineering efficiency is improved. And meanwhile, due to the extension and plugging functions of the triangular chassis and the rotary downward-moving compaction effect of the pressing disc, scattering or crushing of rock soil in the extraction process is effectively avoided, the cleanliness of a construction site is kept, the accuracy and reliability of subsequent procedures are improved, the functions of efficiently cutting and collecting the rock soil are achieved, and the construction efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a soil releasing mechanism of a rotary drilling rig in a gobi mud layer, and more particularly to a soil releasing mechanism of a rotary drilling rig in a gobi mud layer. BACKGROUND

[0002] A rotary drilling rig is a construction machine suitable for hole forming operations in building foundation engineering. It cuts into the soil layer through the self-weight of the drill rod and drill bit, cuts and loads the rock and soil into the drill bit while the drill bit is rotating. Then, the drill lifting device and telescopic drill rod lift the drill bit out of the hole to unload the soil. This process is repeated until the designed hole depth is reached.

[0003] When the drill bit of the rotary drilling rig cuts into the plastic formation, the drill cuttings are easily cut into fine particles due to the low strength and easy deformation characteristics of the formation. The drill cuttings are easily lost during the lifting process and cannot be effectively loaded into the drill bit. The rotary drilling rig needs to unload the soil more frequently, thereby prolonging the drilling time and reducing the construction efficiency. SUMMARY

[0004] The utility model discloses a soil releasing mechanism of a rotary drilling rig in a gobi mud layer to solve the problem that the drill cuttings are easily lost during the lifting process and cannot be effectively loaded into the drill bit, thereby facilitating use.

[0005] To achieve the above object, the utility model provides a technical scheme:

[0006] The utility model discloses a soil releasing mechanism of a rotary drilling rig in a gobi mud layer, which comprises a drill bit shell and a soil storage bin arranged on the inner side of the drill bit shell. A reserved groove is formed on the upper surface of the drill bit shell. The bottom of the drill bit shell is provided with a sawtooth surface. A soil drilling assembly is installed on the inner side of the soil storage bin. The soil drilling assembly comprises a pressure disc and a triangular cutting disc. The triangular cutting disc is arranged at the lower end of the pressure disc. The pressure disc and the triangular cutting disc are matched with the soil storage bin. A connecting U-shaped rod is arranged at the upper end of the soil drilling assembly. One end of the connecting U-shaped rod is connected with the pressure disc. The other end of the connecting U-shaped rod is connected with the reserved groove.

[0007] Preferably, a cavity is formed on the inner side of the triangular cutting disc. A pressure cone is installed at the bottom end of the triangular cutting disc. A triangular cross section is formed on the surface of the pressure cone. The cross section of the pressure cone is matched with the triangular cutting disc.

[0008] Preferably, a triangular base plate is installed on the inner side of the cavity. The shape of the triangular base plate is matched with that of the triangular cutting disc. Sharp teeth are arranged on the edge of the triangular base plate.

[0009] Preferably, a driven gear ring is installed on the upper surface of the pressure disc. A driving gear plate is arranged on one side of the driven gear ring. The driven gear ring and the driving gear plate are connected in meshing mode. The driving gear plate is connected with the output end of the motor.

[0010] Preferably, the central part of the pressing disc and the triangular cutting disc is provided with a rotating rod, and a driven gear ring is sleeved on the surface of the rotating rod.

[0011] Preferably, the bottom of the reserved groove is provided with a guide slope, one end of a connecting U-shaped rod is connected with the upper surface of the driven gear ring, and the other end of the connecting U-shaped rod is connected with the bottom surface of the guide slope.

[0012] Preferably, the inside of the rotating rod is provided with a hollow cavity, the hollow cavity is connected with the cavity, a connecting rod is arranged in the hollow cavity, the bottom end of the connecting rod is connected with the central part of the pointed tooth surface, an arc-shaped sliding groove is formed in the side surface of the rotating rod, the arc-shaped sliding groove is connected with the hollow cavity, and a connecting block is arranged on the inner side surface of the driven gear ring, and the side end of the connecting block is connected with the side surface of the connecting rod.

[0013] Compared with the prior art, the technical scheme has the following beneficial effects:

[0014] 1. A soil drilling device for a gobi mud layer rotary drilling device, wherein the pressing disc and the triangular cutting disc in the soil drilling assembly are matched with each other, and through rotation and downward movement, the soil drilling device can effectively compact and block the rock soil, ensure that the complete rock soil block can be taken out in each soil releasing process, reduce the number of repeated operations, shorten the overall construction period, and make the project be completed faster.

[0015] 2. A soil drilling device for a gobi mud layer rotary drilling device, wherein through the extension and blocking of the triangular base disc and the rotation and downward movement and compacting of the pressing disc, the soil drilling device can avoid the rock soil from being scattered or broken in the extraction process, help to keep the construction site clean, improve the accuracy and reliability of the subsequent process, and provide a strong guarantee for the smooth progress of the project. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure diagram of the utility model;

[0017] Figure 2 It is a structure schematic view of the soil drilling assembly of the utility model;

[0018] Figure 3 It is a structure schematic view of the triangular base disc of the utility model;

[0019] Figure 4 It is a plane schematic view of the guide slope of the utility model;

[0020] Figure 5 It is a plane schematic view of the inside of the rotating rod of the utility model.

[0021] In the figure: 1, drill bit shell; 2, reserved groove room; 21, guide slope; 3, soil storage bin; 4, sawtooth surface; 5, soil drilling assembly; 51, pressure plate; 511, driven tooth ring; 512, driving tooth plate; 52, triangular cutting disc; 53, cavity; 54, pressure vertebra; 55, triangular cross section; 56, triangular base plate; 57, tine surface; 58, rotating rod; 581, hollow tube cavity; 582, connecting rod; 583, connecting block; 584, arc-shaped sliding groove; 6, connecting U-shaped rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] In order to further understand the content of the utility model, the utility model will be described in detail in combination with the drawings.

[0024] In combination with Figure 1 The utility model discloses a kind of gobi mud layer rotary drilling soil release mechanism, including drill bit shell 1 and the soil storage bin 3 of being set in the inside of drill bit shell 1, the upper surface of the drill bit shell 1 is equipped with reserved groove room 2, the bottom of drill bit shell 1 is provided with sawtooth surface 4, the inside of soil storage bin 3 is equipped with soil drilling assembly 5, soil drilling assembly 5 includes pressure plate 51 and triangular cutting disc 52, triangular cutting disc 52 is located in the lower end of pressure plate 51, pressure plate 51 and triangular cutting disc 52 are matched with soil storage bin 3, the upper end of soil drilling assembly 5 is provided with connecting U-shaped rod 6, one end of connecting U-shaped rod 6 is connected with pressure plate 51, the other end of connecting U-shaped rod 6 is connected with reserved groove room 2.

[0025] The utility model will be further described below in combination with embodiment.

[0026] In combination with Figures 2-5 The inside of triangular cutting disc 52 is equipped with cavity 53, the bottom of triangular cutting disc 52 is equipped with pressure vertebra 54, the surface of pressure vertebra 54 is equipped with triangular cross section 55, the cross section of pressure vertebra 54 is matched with triangular cutting disc 52, the inside of cavity 53 is equipped with triangular base plate 56, triangular base plate 56 is matched with the shape of triangular cutting disc 52, the edge end of triangular base plate 56 is provided with tine surface 57, the central part of the upper surface of pressure plate 51 is equipped with driven tooth ring 511, one side of driven tooth ring 511 is provided with driving tooth plate 512, driven tooth ring 511 and driving tooth plate 512 are engagedly connected, the central part of driving tooth plate 512 is connected with the output end of motor.

[0027] The central part of the pressing disc 51 and the triangular cutting disc 52 is provided with a rotating rod 58, a driven gear ring 511 is sleeved on the surface of the rotating rod 58, the bottom of the reserved groove chamber 2 is provided with a guide slope 21, one end of the connecting U-shaped rod 6 is connected with the upper surface of the driven gear ring 511, the other end of the connecting U-shaped rod 6 is limitingly connected with the bottom surface of the guide slope 21, the inside of the rotating rod 58 is provided with a hollow cavity 581, the hollow cavity 581 is communicated with the cavity 53, the inside of the hollow cavity 581 is installed with a connecting rod 582, the bottom end of the connecting rod 582 is connected with the central part of the pointed tooth surface 57, the side surface of the rotating rod 58 is provided with an arc-shaped sliding groove 584, the arc-shaped sliding groove 584 is communicated with the hollow cavity 581, the inside surface of the driven gear ring 511 is installed with a connecting block 583, the side end of the connecting block 583 is connected with the side surface of the connecting rod 582.

[0028] In the embodiment, according to the geological conditions, the appropriate pile position is selected, the rotary drilling rig reaches the pile position, the rotating rod 58 is connected with the mast of the rotary drilling rig, the drill bit shell 1 is placed downward through the mast guide, the drill bit shell 1 is aimed at the pile position, the drill bit shell 1 cuts the rock and soil in the gobi mud layer through the sawtooth surface 4 while rotating, in the initial state, the triangular bottom disc 56 is completely received in the inside of the cavity 53, the rock and soil enters between the pressing disc 51 and the triangular cutting disc 52 along the two triangular groove areas of the triangular cutting disc 52, at this time, the driving gear 512 is started, on the one hand, the driving gear 512 drives the driven gear ring 511 to rotate, the driven gear ring 511 drives the connecting block 583 to rotate through the connecting block 583, the connecting block 583 drives the connecting rod 582 to rotate, the connecting rod 582 drives the triangular bottom disc 56 to extend outward along the cavity 53 and fill the two triangular groove areas of the triangular cutting disc 52, the bottom end of the rock and soil between the pressing disc 51 and the triangular cutting disc 52 is blocked, the pointed tooth surface 57 is convenient for cutting the rock and soil, on the other hand, due to the rotation of the driven gear ring 511, the connecting U-shaped rod 6 rotates, the pressing disc 51 moves downward along the rotating rod 58 due to the limit connection of the guide slope 21, the soft rock and soil between the pressing disc 51 and the triangular cutting disc 52 is compacted, the surface of the guide slope 21 is provided with a T-shaped groove for limiting, the lowest end of the T-shaped groove is provided with a rectangular groove, then the limit connection is cancelled, so as to separate the drill bit shell 1 and the soil drilling assembly 5, and then the integrity of the rock and soil taken out can be ensured every time the soil is discharged, so as to improve the construction efficiency.

[0029] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A rotary drilling and soil removal mechanism for Gobi mud layers, comprising a drill bit housing and a soil storage chamber disposed inside the drill bit housing, characterized in that: The upper surface of the drill bit housing is provided with a reserved slot, and the bottom of the drill bit housing is provided with a serrated surface. A soil drilling assembly is installed inside the soil storage chamber. The soil drilling assembly includes a pressure plate and a triangular cutting plate. The triangular cutting plate is located at the lower end of the pressure plate. Both the pressure plate and the triangular cutting plate are matched with the soil storage chamber. A connecting U-rod is provided at the upper end of the soil drilling assembly. One end of the connecting U-rod is connected to the pressure plate, and the other end of the connecting U-rod is connected to the reserved slot.

2. The rotary drilling and soil removal mechanism for Gobi mud layers according to claim 1, characterized in that: The triangular cutting disc has a cavity on its inner side, and a pressure cone is installed at the bottom of the triangular cutting disc. The surface of the pressure cone has a triangular cross section, and the cross section of the pressure cone matches that of the triangular cutting disc.

3. The rotary drilling and soil removal mechanism for Gobi mud layers according to claim 2, characterized in that: A triangular base is installed inside the cavity. The shape of the triangular base matches that of the triangular cutting disk, and the edge of the triangular base is provided with sharp teeth.

4. The rotary drilling and soil removal mechanism for Gobi mud layers according to claim 3, characterized in that: A driven gear ring is installed in the center of the upper surface of the pressure plate, and a driving gear disc is provided on one side of the driven gear ring. The driven gear ring and the driving gear disc are meshed and connected, and the output end of the motor is externally connected to the center of the driving gear disc.

5. The rotary drilling and soil removal mechanism for Gobi mud layers according to claim 4, characterized in that: A rotating rod is located in the center of the pressure plate and the triangular cutting plate, and a driven gear ring is sleeved on the surface of the rotating rod.

6. The rotary drilling and soil removal mechanism for Gobi mud layers according to claim 4, characterized in that: The bottom of the reserved slot is provided with a guide ramp. One end of the connecting U rod is connected to the upper surface of the driven gear ring, and the other end of the connecting U rod is limited to the bottom surface of the guide ramp.

7. A rotary drilling and soil removal mechanism for Gobi mud layers according to claim 5, characterized in that: The rotating rod has a hollow cavity inside, which is connected to the air cavity. A connecting rod is installed inside the hollow cavity, and the bottom end of the connecting rod is aligned with the center of the pointed tooth surface. An arc-shaped groove is provided on the side surface of the rotating rod, which is connected to the hollow cavity. A connecting block is installed on the inner surface of the driven tooth ring, and the side end of the connecting block is connected to the side surface of the connecting rod.

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