CN213234961U

CN213234961U - Drill bit of rotary drilling rig

Info

Publication number: CN213234961U
Application number: CN202022143637.XU
Authority: CN
Inventors: 姜鹏展
Original assignee: Hebei Haorui Foundation Engineering Co ltd
Current assignee: Hebei Haorui Foundation Engineering Co ltd
Priority date: 2020-09-26
Filing date: 2020-09-26
Publication date: 2021-05-18
Anticipated expiration: 2030-09-26

Abstract

The utility model relates to a dig rig drill bit soon, include the drill bit and set up the connecting portion that are used for connecting the drilling rod on the drill bit, be provided with the clearance subassembly in the drill bit, be provided with the cavity in the connecting portion, the clearance subassembly is including wearing to establish drill bit upper end middle part and being located the dwang of connecting portion cavity, be connected with the dwang and being located the inside clearance pole of drill bit and set up and be used for driving dwang pivoted drive assembly in the cavity, the clearance pole include with the vertical pole of drill bit internal perisporium sliding conflict and with the horizontal pole of vertical pole vertical fixation and with drill bit upper end inner wall sliding conflict, vertical pole is the L type with the horizontal pole and lays, the horizontal pole is connected with the dwang is perpendicular. This application has the effect that improves the drill bit and unloads native efficiency.

Description

Drill bit of rotary drilling rig

Technical Field

The application relates to the field of rotary drilling rigs, in particular to a drill bit of a rotary drilling rig.

Background

Along with the economic development of China, the rotary drilling rig is more and more widely used; the rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering; the method is mainly suitable for the construction of soil layers such as sandy soil, cohesive soil, silty soil and the like, and is widely applied to the construction of various foundation foundations such as cast-in-place piles, continuous walls, foundation reinforcement and the like.

At present, when a rotary drilling rig drills, a drill bit rotates downwards until the drill bit is filled with soil to form a cylinder, then the drill bit is lifted, the position of the drill bit is moved to the other open direction, then the drill bit is rotated, and the soil in the drill bit is scattered on the ground through the rotating inertia force.

However, when the viscosity of some soil is large, the soil in the drill bit can not smoothly leave the drill bit only by the rotation of the drill bit, and the soil needs to be cleaned manually, so that the construction efficiency is influenced, and the workload of workers is increased.

Disclosure of Invention

In order to improve the efficiency that the drill bit unloads soil, this application provides a dig rig drill bit soon.

The application provides a dig rig drill bit soon adopts following technical scheme:

the utility model provides a dig rig drill bit soon, includes the drill bit and sets up the connecting portion that are used for connecting the drilling rod on the drill bit, be provided with the clearance subassembly in the drill bit, be provided with the cavity in the connecting portion, the clearance subassembly is including wearing to establish drill bit upper end middle part and lieing in the dwang of connecting portion cavity, be connected with the dwang and lie in the inside clearance pole of drill bit and set up and be used for driving dwang pivoted drive assembly in the cavity, the clearance pole include with the vertical pole of drill bit internal perisporium sliding conflict and with the vertical pole vertical fixation and with the horizon bar of drill bit upper end inner wall sliding conflict, vertical pole is the L type with the horizon bar and lays, the horizon bar is connected with the dwa.

Through adopting above-mentioned technical scheme, when the drill bit took soil and finishes need unload soil, start drive assembly, drive assembly drives the dwang and rotates, and the dwang drives the clearance pole and rotates, and vertical pole in the clearance pole is stained with the earth that attaches on to the internal perisporium of drill bit and is struck off, and the horizon bar is stained with the earth that attaches on to drill bit up end inner wall and is struck off, has realized that automatic clear is stained with the earth that attaches on the drill bit inner wall, has improved the drill bit and has unloaded the efficiency of soil.

Optionally, the driving assembly includes a driving motor fixed in the cavity of the connecting portion along the vertical direction, a driving gear coaxially connected with an output shaft of the driving motor, and a driven gear coaxially connected with the rotating rod and kneaded with teeth of the driving gear.

Through adopting above-mentioned technical scheme, when using drive assembly to the dwang drive, start driving motor, driving motor drives the driving gear and rotates, and the driving gear drives driven gear and rotates, and driven gear drives the dwang and rotates, has improved the stability of drive assembly drive dwang when rotating.

Optionally, the clearance pole can be dismantled with the dwang and be connected, the one end that the horizon bar is connected with the dwang is provided with the adapter sleeve that the dwang was established to the slip cap, the adapter sleeve passes through bolt fixed connection with the dwang.

Through adopting above-mentioned technical scheme, when the long-time use of clearance pole needs clearance or change, the bolt is unloaded to the pine, removes the adapter sleeve from the dwang, then with the clearance pole remove the drill bit can, when the clearance pole is installed to needs, only need just to the dwang with the adapter sleeve, then embolia into the dwang with the adapter sleeve on, can with the bolt fastening at last, made things convenient for the staff to repair the clearance pole.

Optionally, the connecting sleeve is a square-shaped connecting sleeve, and the connecting portion of the rotating rod and the connecting sleeve is a square rod clamped in the connecting sleeve.

By adopting the technical scheme, when the connecting sleeve in the inner square shape is sleeved into the rotating rod in the square shape, the connecting sleeve and the rotating rod cannot rotate relatively, a positioning effect is achieved, and workers can fix the connecting sleeve and the rotating rod conveniently by using bolts.

Optionally, the end face, abutting against the inner peripheral wall of the drill bit, of the vertical rod is an arc-shaped end face, the cross section of the vertical rod is fan-shaped, and the longitudinal section of the horizontal rod is isosceles triangle-shaped.

Through adopting above-mentioned technical scheme, not only increased the conflict area of clearance pole with the drill bit inner wall, improved the clearance effect of clearance pole, reduced the area of contact of clearance pole with earth moreover, and then reduced earth and be stained with the condition emergence of attaching on the clearance pole.

Optionally, a positioning and cutting assembly is arranged at the lower end of the drill bit, and the positioning and cutting assembly comprises a fixing ring connected with the lower end of the drill bit, a cutting gear ring arranged at the lower end of the fixing ring and vertically arranged downwards, a positioning frame arranged inside the fixing ring, and a positioning taper rod arranged on the positioning frame and vertically arranged downwards.

Through adopting above-mentioned technical scheme, set up location cutting assembly, when the drill bit is when rotating, the cutting ring gear rotates with the drill bit simultaneously, carries out a broken function to earth, makes the boring into earth that the drill bit is changeed, and the setting of location taper rod makes things convenient for the staff to confirm the relative relation between the center of drill bit and the ground.

Optionally, the fixed ring can be dismantled with the drill bit and be connected, set up the holding tank that holds fixed ring on the internal perisporium of tip under the drill bit, be provided with a plurality of locating piece on the terminal surface that fixed ring and drill bit are inconsistent, the constant head tank has just been seted up to the position of locating piece to the drill bit, fixed ring passes through embedded bolt fixed connection with the drill bit.

Through adopting above-mentioned technical scheme, because the cutting ring gear rotates the cutting with earth, after long-time the use, need carry out the maintenance of fixing a position to the cutting ring gear, when needs will cut the ring gear and tear the drill bit open, the bolt relaxes, will gu fixed ring move away the drill bit downwards can, when needs installation solid fixed ring, only need make the locating piece just to the constant head tank, then will gu fixed ring insert in the holding tank to the bolt is fixed can, made things convenient for the staff to maintain the cutting ring gear.

Optionally, the positioning taper rod is detachably connected with the positioning frame, a taper sleeve for the positioning taper rod to pass through is arranged on the positioning frame, and the positioning taper rod passes through the taper sleeve and is fixed on the taper sleeve through an embedded bolt.

Through adopting above-mentioned technical scheme, the location taper rod takes place rigid contact with earth when the drill bit is marchd downwards, and after long-time use, the location taper rod can take place to damage, needs maintain or change the location taper rod, and the location taper rod can be dismantled with the locating rack and be connected, and the staff can be with the location taper rod separation locating rack, has made things convenient for the staff to maintain or change the location taper rod.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the cleaning assembly, the automatic cleaning of the soil adhered to the inner wall of the drill bit is realized, and the soil unloading efficiency of the drill bit is improved;

2. the cleaning rod is detachably connected with the rotating rod, so that workers can clean and replace the cleaning rod conveniently;

3. through setting up location cutting assembly, not only improved the earth boring efficiency of drill bit, made things convenient for the staff to carry out position location to drill bit and ground moreover.

Drawings

Fig. 1 is an overall sectional view of an embodiment of the present application.

Fig. 2 is an exploded view of a cleaning rod and a rotating rod embodied in the embodiment of the present application.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Description of reference numerals: 1. a drill bit; 11. accommodating grooves; 12. positioning a groove; 2. a connecting portion; 3. cleaning the assembly; 31. rotating the rod; 32. cleaning the rod; 321. a vertical rod; 322. a horizontal bar; 4. a drive assembly; 41. a drive motor; 42. a driving gear; 43. a driven gear; 5. connecting sleeves; 6. positioning the cutting assembly; 61. a fixing ring; 611. positioning blocks; 62. cutting the gear ring; 63. a positioning frame; 631. positioning a rod; 64. positioning the taper rod; 7. a taper sleeve.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a drill bit of a rotary drilling rig. Referring to fig. 1 and 2, dig the rig drill bit soon and include drill bit 1 and connecting portion 2, drill bit 1 sets up to cylindricality shape and for the barrel of under shed, connecting portion 2 sets up at the middle part of 1 upper end of drill bit and is used for connecting the drilling rod, be provided with clearance subassembly 3 in the drill bit 1, the lower tip of drill bit 1 is provided with location cutting assembly 6, clearance subassembly 3 is used for clearing up 1 inner wall of drill bit and is stained with the earth that attaches, location cutting assembly 6 is used for fixing a position drill bit 1 and the position on ground and changes drill bit 1 and bore into in the ground.

Clearance subassembly 3 includes dwang 31, clearance pole 32 and drive assembly 4, and dwang 31 rotates along vertical direction and wears to establish the upper end of drill bit 1, and clearance pole 32 sets up in the inside of drill bit 1 and contradicts with the inner wall slip of drill bit 1, and clearance pole 32 can be dismantled with dwang 31 and be connected, is provided with the cavity that holds drive assembly 4 in the connecting portion 2, and drive assembly 4 drive dwang 31 rotates.

Clearance pole 32 includes vertical pole 321 and horizontal pole 322, vertical pole 321 lays and slides with the internal perisporium of drill bit 1 along vertical direction and contradicts, horizontal pole 322 level is laid and slides with the upper end inner wall of drill bit 1 and contradicts, vertical pole 321 is the L type with horizontal pole 322 and lays, drive assembly 4 includes driving motor 41, driving gear 42 and driven gear 43, driving motor 41 fixes the up end at drill bit 1 and is located connecting portion 2's cavity along vertical direction, the coaxial rigid coupling of driving gear 42 and driving motor 41's output shaft, driven gear 43 is coaxial to be fixed on dwang 31, and driven gear 43 is kneaded with driving gear 42 tooth.

When the completion of getting soil of drill bit 1 needs to unload soil, start driving motor 41, driving motor 41 drives driving gear 42 and rotates, and driving gear 42 drives driven gear 43 and rotates, and driven gear 43 drives dwang 31 and rotates, and dwang 31 drives clearance pole 32 and rotates, and then strikes off the earth on the 1 inner wall of drill bit, has improved the efficiency that drill bit 1 unloaded soil.

Combine fig. 3, clearance pole 32 is provided with threely, three clearance pole 32 uses dwang 31 to evenly lay as the axis, three clearance pole 32 with dwang 31 junction fixed connection, clearance pole 32 can dismantle with dwang 31 and be connected, three clearance pole 32 is provided with adapter sleeve 5 in the junction, adapter sleeve 5 cover is established on dwang 31, and through embedded bolt and dwang 31 fixed connection, adapter sleeve 5 sets up the adapter sleeve 5 into six directions shape in, dwang 31 sets up to six square poles in the part of being connected with adapter sleeve 5.

The terminal surface that

vertical pole

321 and 1 internal perisporium of drill bit are inconsistent sets up to the arc terminal surface, and the cross section of vertical pole 321 sets up to fan-shaped shape, and the longitudinal section of horizontal pole 322 sets up to the isosceles triangle shape, has not only increased the conflict area of clearance pole 32 with 1 inner wall of drill bit, improves the clearance effect of clearance pole 32, has reduced the area of contact of clearance pole 32 with earth moreover, and then has reduced earth and has been stained with the condition emergence of attaching on clearance pole 32.

As shown in fig. 1 and 2, the positioning and cutting assembly 6 includes a fixing ring 61, a cutting ring gear 62, a positioning frame 63 and a positioning taper rod 64, the fixing ring 61 is detachably disposed at the lower end of the drill bit 1, the cutting ring gear 62 is fixed at the lower end of the fixing ring 61, and teeth of the cutting ring gear 62 are vertically arranged downwards, the positioning frame 63 is fixed in the fixing ring 61 along the horizontal direction, the positioning frame 63 includes three positioning rods 631, the fixing ring 61 is trisected at the connecting position of the three positioning rods 631 and the fixing ring 61, one end of the three positioning rods 631, which is far away from the fixing ring 61, is connected at the central axis of the fixing ring 61, the three positioning rods 631 are provided with taper sleeves 7 at the connecting position, the positioning taper rod 64 penetrates through the taper sleeves 7 along the vertical direction, the positioning taper rod 64 is fixedly connected with the taper sleeves 7 through embedded bolts, and.

Offer holding tank 11 that holds fixed ring 61 on the internal perisporium of drill bit 1 lower tip, fixed ring 61 is provided with locating piece 611 on the periphery wall that offsets with drill bit 1 is extended to level, and drill bit 1 is just offered useful locating piece 611 along vertical direction insert the constant head tank 12 in drill bit 1 to the position of locating piece 611, and fixed ring 61 is connected with drill bit 1 is dismantled through embedded bolt.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a rotary drilling rig drill bit, includes drill bit (1) and sets up connecting portion (2) that are used for connecting the drilling rod on drill bit (1), its characterized in that: be provided with clearance subassembly (3) in drill bit (1), be provided with the cavity in connecting portion (2), clearance subassembly (3) are including wearing to establish drill bit (1) upper end middle part and lie in dwang (31) of connecting portion (2) cavity, be connected with dwang (31) and lie in inside clearance pole (32) of drill bit (1) and set up and be used for driving dwang (31) pivoted drive assembly (4) in the cavity, clearance pole (32) include with drill bit (1) internal perisporium slide conflict vertical pole (321) and with vertical pole (321) vertical fixation and with drill bit (1) upper end inner wall slide conflict horizon bar (322), vertical pole (321) are the L type with horizon bar (322) and lay, horizon bar (322) are connected with dwang (31) vertical.

2. The drill bit of the rotary drilling rig according to claim 1, wherein: the driving assembly (4) comprises a driving motor (41) fixed in the cavity of the connecting part (2) along the vertical direction, a driving gear (42) coaxially connected with an output shaft of the driving motor (41), and a driven gear (43) coaxially connected with the rotating rod (31) and kneaded with teeth of the driving gear (42).

3. The drill bit of the rotary drilling rig according to claim 1, wherein: clearance pole (32) can dismantle with dwang (31) and be connected, the one end that horizon bar (322) and dwang (31) are connected is provided with adapter sleeve (5) that dwang (31) were established to the slip cap, adapter sleeve (5) pass through bolt fixed connection with dwang (31).

4. The drill bit of the rotary drilling rig according to claim 3, wherein: the connecting sleeve (5) is arranged to be a connecting sleeve (5) with an inner square shape, and the part of the rotating rod (31) connected with the connecting sleeve (5) is arranged to be a square rod clamped in the connecting sleeve (5).

5. The drill bit of the rotary drilling rig according to claim 1, wherein: the end face of the vertical rod (321) which is inconsistent with the inner peripheral wall of the drill bit (1) is set to be an arc-shaped end face, the cross section of the vertical rod (321) is set to be in a fan-shaped shape, and the longitudinal section of the horizontal rod (322) is set to be in an isosceles triangle shape.

6. The drill bit of the rotary drilling rig according to claim 1, wherein: the drill bit is characterized in that a positioning cutting assembly (6) is arranged at the lower end part of the drill bit (1), the positioning cutting assembly (6) comprises a fixing ring (61) connected with the lower end part of the drill bit (1), a cutting gear ring (62) arranged at the lower end part of the fixing ring (61) and vertically arranged downwards, a positioning frame (63) arranged inside the fixing ring (61) and a positioning taper rod (64) arranged on the positioning frame (63) and vertically arranged downwards.

7. The drill bit of the rotary drilling rig according to claim 6, wherein: fixed ring (61) can be dismantled with drill bit (1) and be connected, set up holding tank (11) that hold fixed ring (61) on the internal perisporium of drill bit (1) lower tip, be provided with a plurality of locating piece (611) on fixed ring (61) and the inconsistent terminal surface of drill bit (1), constant head tank (12) have just been seted up to the position of locating piece (611) in drill bit (1), fixed ring (61) is through embedded bolt fixed connection with drill bit (1).

8. The drill bit of the rotary drilling rig according to claim 6, wherein: the positioning taper rod (64) is detachably connected with the positioning frame (63), a taper sleeve (7) for the positioning taper rod (64) to penetrate is arranged on the positioning frame (63), and the positioning taper rod (64) penetrates through the taper sleeve (7) and is fixed on the taper sleeve (7) through an embedded bolt.