CN213627446U

CN213627446U - Drill bit of combined type piece-cutting rotary drilling rig

Info

Publication number: CN213627446U
Application number: CN202022616769.XU
Authority: CN
Inventors: 尹维超; 张永军
Original assignee: Zhejiang Yili Construction Engineering Co ltd
Current assignee: Zhejiang Yili Construction Engineering Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-07-06
Anticipated expiration: 2030-11-12

Abstract

The utility model provides a combined type piece-opening rotary drilling rig drill bit, which comprises a shell, the shell is a barrel which runs through from top to bottom, one end of the shell is provided with a shaft sleeve cover connected with a drilling machine rotating shaft, the other end of the shell is provided with a chassis, two side surfaces of the chassis are respectively provided with a rotating blade and a drill, the chassis is also provided with a mud inlet hole, the side wall of the shell is provided with a door, one side of the shaft sleeve cover is provided with a spring pressing rod, one end of the spring pressing rod is a pressing end, the other end of the spring pressing rod is a hinged end, the hinged end penetrates through the shaft sleeve cover and extends into the shell, the upper surface of the rotating blade is provided with a limiting block, a hook groove is arranged on the limiting block, a limiting hook is hinged on the hinged end, the; the utility model discloses the advantage lies in preventing that drill bit casing and drilling outer wall from rubbing and seriously damaging, and fungible composite drill bit, bailing fill drill bit, half drill bit of opening, has realized that a drill bit is multi-purpose.

Description

Drill bit of combined type piece-cutting rotary drilling rig

Technical Field

The utility model relates to a technical field of rig drill bit, more specifically the drill bit that rig was dug soon in combined type piece is opened that says so relates to a combined type.

Background

The rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering, is mainly suitable for soil layer construction of sandy soil, cohesive soil, silty soil and the like, is widely applied to foundation construction of various foundations such as cast-in-place piles, continuous walls, foundation reinforcement and the like, and a drill bit is particularly important for the construction of the rotary drilling rig in the construction process.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a prevent that drill bit casing from rubbing with the drilling outer wall and seriously damaging, and fungible composite drill bit, bailing fill drill bit, open half drill bit, realized that the multi-purpose combined type of a drill bit is opened piece and is dug the drill bit of rig soon for overcome above-mentioned defect among the prior art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a drill bit of a combined type slicing rotary drilling rig comprises a shell, wherein the shell is a barrel body which penetrates through the shell from top to bottom, one end of the shell is provided with a shaft sleeve cover connected with a rotary shaft of the drilling rig, the other end of the shell is provided with a chassis, two side faces of the chassis are respectively provided with a rotating blade and a drill, the rotating blade is rotatably connected to the surface of the chassis inside the shell, the drill is positioned on the surface of the chassis outside the shell, the chassis is also provided with a mud inlet hole, the side wall of the shell is provided with a door, one side of the door close to the shaft sleeve cover is hinged with the shell, one side of the door far away from the shaft sleeve cover is hinged with the chassis, one side of the shaft sleeve cover is provided with a spring pressing rod, one end of the spring pressing rod is a pressing end, the other end of the spring pressing rod is a hinged end, the hinged end, the articulated end is articulated with spacing colluding, the center department that spacing colludes is articulated with the casing inside wall, the colluding foot cooperation that spacing colluded is used in the colluding groove of stopper.

Furthermore, an upper waist protecting belt and a lower waist protecting belt are further wound on the side wall of the shell, a plane is arranged on one side wall of the shell, and the plane is located between the upper waist protecting belt and the lower waist protecting belt.

Further, still be equipped with the wear-resisting bar that helps of a plurality of on the lateral wall of casing, a plurality of wear-resisting the bar that helps is equallyd divide around the lower extreme of establishing the upper end of casing and casing, a plurality of wear-resisting the bar that helps all is equipped with compound piece wear-resisting granule on the surface.

Furthermore, a trapezoidal lug is further arranged on the chassis, and a trapezoidal slot matched with the trapezoidal lug is formed in the bottom of the shell.

Furthermore, the upper end of the limiting block is provided with an inclined surface facing the limiting hook.

Furthermore, a fixed sleeve is further sleeved on the spring pressing rod in the shell, and one end of the fixed sleeve is fixedly connected to the inner side wall of the shell.

Furthermore, the shaft sleeve cover comprises a square sleeve and reinforcing plates arranged at the four corners of the square sleeve.

The utility model has the advantages that: through the articulated spacing colluding of spring hidden rod one end, the central point that spacing colludes articulates on the casing, use this as the rotation point, spacing colluding colludes the foot and colludes the stopper on the chassis, it is articulated with the casing to open board one end on the casing lateral wall, the other end is articulated with the chassis, when the casing bores full silt, the accessible is pressed down the spring hidden rod so that spacing colludes and break away from the stopper, then the casing rotates, rotatory in-process chassis and open the board and can open so that inside viscidity silt drops through the whipping force, complete fungible composite drill bit, drag for the sand fill drill bit, open half drill bit efficiency, a drill bit is multi-purpose has been realized, low in use cost, high efficiency, and is suitable for being generalized to use.

Drawings

FIG. 1 is an overall structure of the present invention;

fig. 2 is a front view of the present invention.

Reference numerals: 1. a housing; 2. a shaft sleeve cover; 21. a square sleeve; 22. a reinforcing plate; 3. a chassis; 4. a rotor blade; 5. a drill; 6. a mud inlet hole; 7. opening the door; 8. a spring pressing rod; 81. a pressing end; 82. a hinged end; 9. a limiting block; 91. a bevel; 10. hooking a groove; 11. a limiting hook; 12. an upper waist protecting band; 13. a lower waist protecting band; 14. a plane; 15. wear-resistant drilling-assisting strips; 16. a trapezoidal bump; 17. a trapezoidal slot; 18. and (4) fixing sleeves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The embodiments of the present invention will be described in detail with reference to the accompanying drawings:

the conventional rotary drilling rig has the defects that the drill bits are classified more, the function of the drill bits is single, the problems of slow footage, over square, shrinkage and the like can be caused if the corresponding drill bits are not frequently replaced in a complicated stratum, time and labor are wasted if the drill bits are frequently replaced, the equipment cost is high, the conventional drill bits are all integrated cylinders, the bottom of each cylinder is provided with mud inlet, and when the mud in each cylinder is fully drilled, the sticky mud is difficult to be screwed out of the cylinder after being taken out, so that the conventional rotary drilling rig is not suitable for construction of soil layers with high viscosity; therefore, the utility model relates to a prevent that this kind of drill bit casing 1 from rubbing with the drilling outer wall and seriously damaging, and fungible compound drill bit, bailing fill drill bit, open half drill bit, realized the drill bit of the multi-purpose combined type of a drill bit and opened piece rotary drilling rig, the concrete structure is shown in figure 1-2, including casing 1, casing 1 is the barrel that runs through from top to bottom (the barrel in the utility model is by 70% cylinder, 30% plane 14, still wind on the lateral wall of casing 1 and be equipped with upper protecting girdle 12 and lower protecting girdle 13, the effect of upper protecting girdle 12 and lower protecting girdle 13 is that prevent the drill bit from contacting with the hole inner wall completely when drilling, when the soil matter is viscidity silt, the complete contact can lead to the suction of silt firmly to hold the drill bit, there is not clearance or air between the two so that the drill bit takes out hard, be equipped with plane 14 on a lateral wall of casing 1, plane 14 is located between upper protecting girdle 12 and lower protecting girdle, the effect of plane 14 is supplementary upper waist protecting belt 12 and lower waist protecting belt 13's effect, this plane 14 is the symmetry with the board of opening and sets up, the one end of casing 1 is equipped with axle sleeve cover 2 of being connected with the rig pivot, the other end of casing 1 is equipped with chassis 3, be equipped with rotor blade 4 and drill 5 on the both sides face of chassis 3 respectively, rotor blade 4 rotates and connects on the chassis 3 face of casing 1 inside, drill 5 is located the chassis 3 face of casing 1 outside, still be equipped with into mud hole 6 on the chassis 3 (the off-axis describes the essential part that constitutes for current drill bit above, be equipped with on the lateral wall of casing 1 and open the door 7 (open the door 7 and be the arc, have on the casing 1 with opening the opening door 7 assorted opening, opening the door 7 just in time seals the opening, opening the door 7 accounts for 40% of casing 1, remaining casing 1 accounts for 60%), it is articulated to open the door 7 to be close to axle sleeve cover 2 one side and casing 1, it is articulated to open door 7 far away from sleeve cover 2 The chassis 3 is lower, the connection relationship of the door 7 at the position is that the upper end of the door 7 is hinged on the shell 1, the lower end is hinged at one end of the chassis 3), one side of the shaft sleeve cover 2 is provided with a spring pressing rod 8, one end of the spring pressing rod 8 is a pressing end 81, the other end is a hinged end 82, the pressing end 81 is sleeved with a fixing plate connected with the shaft sleeve cover 2, the hinged end 82 penetrates through the shaft sleeve cover 2 and extends into the shell 1, the upper surface of the rotating blade 4 is provided with a limiting block 9, the limiting block 9 is provided with a hook groove 10, the hinged end 82 is hinged with a limiting hook 11, the center of the limiting hook 11 is hinged with the inner side wall of the shell 1, and a hook foot of the limiting hook 11 is; it realizes the principle that the bottom plate and the door 7 are opened and closed: when the casing 1 is full of silt, the drill above the casing is used for extracting the drill bit from the drill hole, the drill rotates forwards and backwards for several circles to throw away mud adhered to the outer surface of the casing 1, then the drill bit is lifted to enable the spring pressing rod 8 to touch the drill, the spring pressing rod 8 is pressed downwards to enable the hinged end 82 to move downwards, the central end of the limiting hook 11 hinged to the hinged end 82 is hinged to the casing 1, therefore, the limiting hook 11 rotates by taking the hinged point with the casing 1 as a central point, finally, the hook foot of the limiting hook 11 falls off from the hook groove 10 on the limiting block 9, the bottom opening is opened by the chassis 3 hinged to the door opening 7, silt in the casing 1 falls off, when the viscosity of the silt is too high, the drill drives the drill bit to rotate forwards and backwards to throw off the door opening 7, finally, the silt in the casing falls off completely, when the limiting hook 11 needs to be hooked on the limiting block 9, the drill bit is pressed towards the ground.

As shown in fig. 1-2, in order to avoid the phenomenon that the outer wall of the drill bit is seriously damaged due to the friction between the drill bit and the outer wall of the drill hole in the existing drill bit in the market, ribs are arranged on the outer surface of the existing drill bit to prolong the service life of the existing drill bit, and the existing ribs cannot play a role in assisting the work of the drill bit and are damaged and not easy to replace; therefore, the side wall of the shell 1 is also provided with a plurality of wear-resistant drilling-assisting strips 15, the wear-resistant drilling-assisting strips 15 are respectively and uniformly wound at the upper end of the shell 1 and the lower end of the shell 1, and the surfaces of the wear-resistant drilling-assisting strips 15 are respectively provided with composite sheet wear-resistant particles which are not shrunk or exceed the size of a mud stratum; when meeting gravel stratum, the footage is fast and no collapse occurs; high air permeability and high wear resistance.

As shown in fig. 1, still be equipped with trapezoidal lug 16 on the chassis 3, the bottom of casing 1 is equipped with trapezoidal slot 17 with trapezoidal lug 16 assorted, trapezoidal lug 16 and trapezoidal slot 17 in the utility model are two sets of relative settings in the both sides of chassis 3, and when chassis 3 from open mode to closed state, this structure is exactly the effect of a direction.

As shown in fig. 1, the upper end of the limiting block 9 has an inclined surface 91 facing the limiting hook 11, when the chassis 3 is opened to closed, the hook leg of the limiting hook 11 will touch the inclined surface 91 of the limiting block 9 first, and then hook into the hook groove 10 downward along the inclined surface 91, and the inclined surface 91 serves as a buffer and guiding function.

As shown in figure 1, a fixing sleeve 18 is further sleeved on the spring pressing rod 8 in the shell 1, one end of the fixing sleeve 18 is fixedly connected to the inner side wall of the shell 1, and the fixing sleeve 18 also plays a role in guiding and limiting.

As shown in fig. 1-2, the sleeve cover 2 includes a square sleeve 21 and reinforcing plates 22 disposed at four corners of the square sleeve 21, and the reinforcing plates 22 are used for enhancing the connection strength between the drilling machine and the drill bit.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a drill bit of rig is dug soon in combined type piece opening, includes casing (1), the barrel that runs through from top to bottom is presented in casing (1), the one end of casing (1) is equipped with axle sleeve lid (2) of being connected with the rig pivot, the other end of casing (1) is equipped with chassis (3), be equipped with rotor blade (4) and drill (5) on the both sides face of chassis (3) respectively, rotor blade (4) rotate to be connected on chassis (3) face inside casing (1), drill (5) are located chassis (3) face of casing (1) outside, still be equipped with into mud hole (6) on chassis (3), its characterized in that: an opening door (7) is arranged on the side wall of the shell (1), one side of the opening door (7) close to the shaft sleeve cover (2) is hinged with the shell (1), one side of the opening door (7) far away from the shaft sleeve cover (2) is hinged with the chassis (3), a spring pressing rod (8) is arranged on one side of the shaft sleeve cover (2), one end of the spring pressing rod (8) is a pressing end (81), the other end of the spring pressing rod is a hinged end (82), the hinged end (82) extends to the interior of the shell (1) through the shaft sleeve cover (2), the upper surface of the rotating blade (4) is provided with a limiting block (9), the limiting block (9) is provided with a hook groove (10), the hinged end (82) is hinged with a limit hook (11), the center of the limit hook (11) is hinged with the inner side wall of the shell (1), the hook feet of the limiting hook (11) are matched and used in the hook grooves (10) of the limiting block (9).

2. The drill bit of the combined type rotary drilling rig for the split blade is characterized in that an upper waist protecting belt (12) and a lower waist protecting belt (13) are further wound on the side wall of the shell (1), a plane (14) is arranged on one side wall of the shell (1), and the plane (14) is located between the upper waist protecting belt (12) and the lower waist protecting belt (13).

3. The drill bit of the combined type rotary drilling rig for chipping the steel sheet according to claim 1, wherein: still be equipped with the wear-resisting of a plurality of on the lateral wall of casing (1) and help and bore strip (15), a plurality of wear-resisting help bores strip (15) respectively etc. and all around the lower extreme of establishing in the upper end of casing (1) and casing (1), a plurality of wear-resisting help bores strip (15) and all is equipped with compound piece wear-resisting granule on the surface.

4. The drill bit of the combined type rotary drilling rig for chipping the steel sheet according to claim 1, wherein: the chassis (3) is also provided with a trapezoidal bump (16), and the bottom of the shell (1) is provided with a trapezoidal slot (17) matched with the trapezoidal bump (16).

5. The drill bit of the combined type rotary drilling rig for chipping the steel sheet according to claim 1, wherein: the upper end of the limiting block (9) is provided with an inclined surface (91) facing the limiting hook (11).

6. The drill bit of the combined type rotary drilling rig for chipping the steel sheet according to claim 1, wherein: the spring pressing rod (8) in the shell (1) is further sleeved with a fixing sleeve (18), and one end of the fixing sleeve (18) is fixedly connected to the inner side wall of the shell (1).

7. The drill bit of the combined type rotary drilling rig for chipping the steel sheet according to claim 1, wherein: the shaft sleeve cover (2) comprises a square sleeve (21) and reinforcing plates (22) arranged at four corners of the square sleeve (21).