CN212105752U

CN212105752U - Novel split type tricone bit

Info

Publication number: CN212105752U
Application number: CN201921704704.1U
Authority: CN
Inventors: 李凡
Original assignee: Changzhou Avatar Tool Manufacturing Co ltd
Current assignee: Changzhou Avatar Tool Manufacturing Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-12-08
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a novel split type tricone bit, including connecting rod, palm seat, fixed slot, constant head tank, bit leg, fixed orifices, clamping screw, snubber block, location lug, axis of rotation, gear wheel, rolling disc, extrusion screw, spring and protection casing. The utility model has the advantages that: the installation is dismantled from the palm seat that the bit leg can be free, make bit leg and cone can pull down alone and maintain and change, reduce the maintenance degree of difficulty of vulnerable part, the location lug card of the both sides of bit leg is in the constant head tank, make the bit leg install the position and be difficult to take place the skew, install more swiftly, be fixed with bellied rubber snubber block on bit leg and the fixed slot contact lateral wall, the rotation of axis of rotation freedom can be on the rolling disc on the bit leg, it rotates to have realized axis of rotation area cone, rotate round the axis of rotation for traditional cone, can simplify the inside structure of cone, make the spoilage greatly reduced of cone.

Description

Novel split type tricone bit

Technical Field

The utility model relates to a tricone bit specifically is a novel split type tricone bit, belongs to the probing technical equipment field.

Background

The roller bit is the most widely used drilling bit, is an important tool for petroleum drilling, the working performance of the roller bit directly influences the drilling quality, the drilling efficiency and the drilling cost, the roller bit has the advantages that the cutting teeth alternately contact with the well bottom when in work, the rock breaking torque is small, the contact area between the cutting teeth and the well bottom is small, the specific pressure is high, the roller bit is easy to be eaten into the stratum, the total length of a working edge is large, the abrasion is relatively reduced, the roller bit is mostly used, the roller bit is widely applied to petroleum, natural gas drilling and other geological drilling, when a certain roller of the existing roller bit is damaged, a ball between the roller bit and a rotating shaft of a roller leg needs to be taken out, then the roller bit is taken down and replaced, the roller leg and a palm seat are integrally connected, the integral quality of the roller bit is large, the replacement of a single roller bit is inconvenient, and when the single roller bit is, the labor intensity of workers is high, and the gear wheel is very inconvenient to replace.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel split type tricone bit in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a novel split type tricone bit comprises a connecting rod, a palm seat, a fixed groove, a positioning groove, a palm, a fixed hole, a fixed screw, a shock absorption block, a positioning lug, a rotating shaft, a cone, a rotating disc, an extrusion screw, a spring and a protective cover; a palm seat is fixed on the connecting rod, a fixing groove is arranged on the palm seat, positioning grooves are arranged on two sides of the fixing groove, a fixing hole penetrating through a bit leg is arranged on the bit leg, the bit leg is installed in the fixing groove, a fixing screw penetrates through the fixing hole to fix the palm seat and the bit leg together, the bit leg can be freely disassembled and installed from the palm seat, a raised rubber damping block is fixed on the contact side wall of the bit leg and the fixing groove, positioning convex blocks are fixed on two sides of the bit leg, the positioning convex blocks on two sides of the bit leg are clamped in the positioning grooves, a rotating disc is fixed at the upper end of the bit leg, a rotating shaft is installed on the rotating disc, the rotating shaft can freely rotate on the rotating disc on the bit leg, a gear wheel is installed on the rotating shaft, the extrusion screw penetrates through the gear wheel to fix the rotating shaft and the gear wheel together, and a spring is sleeved on a rod body between, the rotary disc is provided with a protective cover, and the protective cover arranged on the bit leg is positioned above the rotary disc.

Further, in order to enable the bit leg and the cone to be independently detached for maintenance and replacement, the bit leg can be freely detached from the leg base.

Furthermore, in order to prevent the bit leg from shifting easily when being installed, the positioning convex blocks on the two sides of the bit leg are clamped in the positioning grooves.

Furthermore, in order to enable the connection between the bit leg and the leg seat to be more tight, a protruding rubber shock absorption block is fixed on the contact side wall of the bit leg and the fixing groove.

Further, the rotational shaft may freely rotate on the rotary disc on the bit leg in order to greatly reduce the damage rate of the cone.

Furthermore, in order to prevent the extrusion screw from loosening, a spring is sleeved on the rod body between the extrusion screw and the cone.

Further, in order to prevent foreign matters from falling into the rotating disc, the protective cover arranged on the bit leg is positioned above the rotating disc.

The utility model has the advantages that: the tricone bit has compact structure connection, simple use and reasonable design, the bit leg can be freely disassembled and assembled from the leg seat, so that the bit leg and the gear can be independently disassembled for maintenance and replacement, the repair difficulty of vulnerable parts is reduced, the positioning convex blocks at two sides of the bit leg are clamped in the positioning grooves, the position of the bit leg is not easy to deviate when being assembled, the assembly is more rapid, the raised rubber shock absorption block is fixed on the contact side wall of the bit leg and the fixing groove, the connection between the bit leg and the leg seat is more compact, the vibration on the bit leg can be reduced, the bit leg is protected, the rotating shaft can freely rotate on the rotating disc on the bit leg, the rotating shaft drives the gear to rotate, the structure in the gear can be simplified relative to the traditional gear which rotates around the rotating shaft, the damage rate of the gear is greatly reduced, and a spring is sleeved on the rod body between the extrusion screw rod and the gear, the extrusion screw rod can be effectively prevented from loosening, the protective cover arranged on the bit leg is positioned above the rotating disc, and foreign matters are prevented from falling into the rotating disc to influence the rotation of the rotating disc.

Drawings

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

FIG. 2 is a schematic view of the structure of the rotating disc of the present invention;

in the figure: 1. the device comprises a connecting rod, 2, a palm seat, 3, a fixing groove, 4, a positioning groove, 5, a palm, 6, a fixing hole, 7, a fixing screw rod, 8, a damping block, 9, a positioning lug, 10, a rotating shaft, 11, a cone, 12, a rotating disc, 13, an extrusion screw rod, 14, a spring, 15 and a protective cover.

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.

Referring to fig. 1-2, a novel split tricone bit includes a connecting rod 1, a palm rest 2, a fixing groove 3, a positioning groove 4, a palm 5, a fixing hole 6, a fixing screw 7, a damping block 8, a positioning bump 9, a rotating shaft 10, a cone 11, a rotating disc 12, an extrusion screw 13, a spring 14 and a protective cover 15; a palm seat 2 is fixed on the connecting rod 1, a fixing groove 3 is arranged on the palm seat 2, positioning grooves 4 are arranged on two sides of the fixing groove 3, a fixing hole 6 penetrating through a bit leg 5 is arranged on the bit leg 5, the bit leg 5 is installed in the fixing groove 3, a fixing screw 7 penetrates through the fixing hole 6 to fix the palm seat 2 and the bit leg 5 together, the bit leg 5 can be freely disassembled and installed from the palm seat 2, a raised rubber damping block 8 is fixed on the contact side wall of the bit leg 5 and the fixing groove 3, positioning convex blocks 9 are fixed on two sides of the bit leg 5, the positioning convex blocks 9 on two sides of the bit leg 5 are clamped in the positioning grooves 4, a rotating disc 12 is fixed on the upper end of the bit leg 5, a rotating shaft 10 is installed on the rotating disc 12, the rotating shaft 10 can freely rotate on the rotating disc 12 on the bit leg 5, a cone 11 is installed on the rotating shaft 10, the extrusion screw 12 penetrates through the cone 11 to fix the rotating shaft 10 and the cone 11 together, a spring 14 is sleeved on a rod body between the extrusion screw 12 and the cone 11, the rotating disc 12 is provided with a protective cover 15, and the protective cover 15 arranged on the bit leg 5 is positioned above the rotating disc 12.

As the utility model discloses a technical optimization scheme: the bit leg 5 can be freely detached from the leg base 2; the positioning bumps 9 on the two sides of the bit leg 5 are clamped in the positioning grooves 4; a raised rubber damping block 8 is fixed on the contact side wall of the tooth leg 5 and the fixed groove 3; the rotating shaft 10 can freely rotate on a rotating disc 12 on the tooth leg 5; a spring 14 is sleeved on the rod body between the extrusion screw 12 and the cone 11; the protective cover 15 mounted on the bit leg 5 is positioned above the rotating disc 12.

The utility model discloses when using, at first install the connecting rod and can carry out work on corresponding puncher, if a certain bit leg damages, then earlier not hard up clamping screw, then take out whole bit leg from the fixed slot, then install new bit leg in the fixed slot can, install clamping screw can, if there is new gear wheel damage, pull down the bit leg earlier, then loose extrusion screw, take off the gear wheel that will damage from the axis of rotation, install new gear wheel again, and with the bit leg dress back the normal position can.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel split type tricone bit which is characterized in that: the device comprises a connecting rod (1), a palm seat (2), a fixing groove (3), a positioning groove (4), a tooth palm (5), a fixing hole (6), a fixing screw (7), a damping block (8), a positioning lug (9), a rotating shaft (10), a cone (11), a rotating disc (12), an extrusion screw (13), a spring (14) and a protective cover (15); the connecting rod (1) is fixed with a palm seat (2), the palm seat (2) is provided with a fixing groove (3), two sides of the fixing groove (3) are provided with positioning grooves (4), the palm (5) is provided with a fixing hole (6) penetrating through the palm (5), the palm (5) is installed in the fixing groove (3), a fixing screw (7) penetrates through the fixing hole (6) to fix the palm seat (2) and the palm (5) together, the inner side of the palm (5) is fixed with a damping block (8), two sides of the palm (5) are fixed with positioning lugs (9), the upper end of the palm (5) is fixed with a rotating disc (12), the rotating disc (12) is provided with a rotating shaft (10), the cone (11) is installed on the rotating shaft (10), an extrusion screw (13) penetrates through the cone (11) to fix the rotating shaft (10) and the cone (11) together, a spring (14) is arranged on the extrusion screw (13), and a protective cover (15) is arranged on the rotating disc (12).

2. The novel split tricone bit of claim 1, characterized in that: the bit leg (5) can be freely detached from the leg seat (2).

3. The novel split tricone bit of claim 1, characterized in that: the positioning bumps (9) on the two sides of the bit leg (5) are clamped in the positioning grooves (4).

4. The novel split tricone bit of claim 1, characterized in that: and a raised rubber damping block (8) is fixed on the contact side wall of the tooth palm (5) and the fixing groove (3).

5. The novel split tricone bit of claim 1, characterized in that: the rotary shaft (10) can freely rotate on a rotary disc (12) on the bit leg (5).

6. The novel split tricone bit of claim 1, characterized in that: and a spring (14) is sleeved on the rod body between the extrusion screw rod (13) and the cone (11).

7. The novel split tricone bit of claim 1, characterized in that: the protective cover (15) arranged on the bit leg (5) is positioned above the rotating disc (12).