CN208089230U - A kind of petroleum drilling and mining drill bit - Google Patents

Abstract

The utility model discloses a kind of petroleum drilling and mining drill bits, belong to petroleum drilling and mining technical field.Petroleum drilling and mining drill bit includes main body and five wings, and cutting tooth is provided on wing, is located at the cutting tooth in front of main body and forms cutting plane, main body has accommodating chamber and sliding through hole, micro- disruption elements are provided in accommodating chamber.Micro- disruption elements include power motor, crushing head, resetting spring and power transmission part, and power transmission part includes rotating wheel and two pressuring pieces.Power transmission part and the resetting spring style of work drive crushing head to move back and forth so that the tip of conical head has a first state of the side of the close accommodating chamber positioned at cutting plane, and positioned at cutting plane separate accommodating chamber side the second state.Petroleum drilling and mining is carried out using the drill bit of the utility model, the cutting of rock is more convenient, can effectively improve stock-removing efficiency.

Description

A kind of petroleum drilling and mining drill bit

Technical field

The utility model is related to petroleum drilling and mining technical fields, and in particular to a kind of petroleum drilling and mining drill bit.

Background technology

In petroleum drilling and mining field, drill bit can be used to carry out drilling.In the prior art, polycrystalline diamond compact bit be compared with For common one kind, abbreviation PDC drill bit, PDC drill bit is generally made of main body, wing and cutting tooth etc., and wing is arranged in main body End, cutting tooth be arranged on wing.

All standing, cutting tooth are formed to a certain range of rock with, all cutting tooths in the process of PDC drill bit rotation Cutting end face have a certain degree with rock surface shape, by squeezing broken rock far from cutting rock.

However when rock plasticity is higher or hardness is higher, since the integrated stress of rock is larger, cutting is more difficult, bores It adopts less efficient.

Utility model content

The purpose of this utility model is to provide a kind of petroleum drilling and mining drill bits, during the cutting process, can be by broken Head destroys the integrated stress of rock in advance, and cutting is more convenient, effectively improves stock-removing efficiency.

In order to solve the above-mentioned technical problem, the utility model provides the following technical solutions：

A kind of petroleum drilling and mining drill bit, the drill bit include main body and five wings, and the wing is fixedly installed on described In main body, five wings are distributed in a ring, and cutting tooth is provided on the wing, in front of the main body described in cut It cuts tooth and forms cutting plane, there is the main body accommodating chamber and sliding through hole, the sliding through hole to be connected to the accommodating chamber, institute State that sliding through hole is located at the end of the main body and the axis of the sliding through hole is overlapped with the axis of the main body, the receiving Intracavitary is provided with micro- disruption elements；Micro- disruption elements include power motor, crushing head, resetting spring and power transmission part, The power motor is fixed in the accommodating chamber and is driven by power supply, and the crushing head includes blocking head, connecting rod and cone Forming head, the blocking head are fixed on one end of the connecting rod, and the conical head is fixed on the other end of the connecting rod, described Blocking head and the connecting rod are cylindric, and the diameter of the blocking head is more than the diameter of the connecting rod, the conical head To be coniform, one end far from the connecting rod of the conical head is tip, the blocking head, the connecting rod and the cone The axis of forming head overlaps, and the axis of the conical head is overlapped with the axis of the main body, and the blocking head is located at the accommodating chamber Interior, the connecting rod is slidably arranged in the sliding through hole, and the resetting spring is set to the separate of the blocking head The side of the connecting rod, the resetting spring are respectively held against the inner surface of the blocking head and the accommodating chamber and make the company Extension bar has the trend for the direction movement for being directed away from the accommodating chamber, and limited step, the resistance are provided in the accommodating chamber The side far from the resetting spring of stopper can be connected to the limited step and form stroke stop point；The power transmits Part includes rotating wheel and two pressuring pieces, and the rotating wheel is rotatably set to by shaft in the accommodating chamber, two institutes The circumferential direction that pressuring piece is stated along the rotating wheel is uniformly distributed, and the output shaft of the power motor and the shaft of the rotating wheel pass through Driving belt is sequentially connected；In the rotating wheel rotation process, two pressuring pieces can alternately oppress the blocking head Side far from the resetting spring and the resetting spring is made to compress；It is described when the pressuring piece is connected to the blocking head Pressuring piece drives the connecting rod to be moved towards the direction of the accommodating chamber, when the pressuring piece is detached from the blocking head and in addition When one pressuring piece does not abut the blocking head, the resetting spring oppresses the blocking head and makes the connecting rod direction Direction far from the accommodating chamber moves, so that the conical head is connected to rock surface or the blocking head is connected to the limit Position step；The power transmission part and the resetting spring style of work drive the crushing head to move back and forth, so that the cone The tip of forming head has the first state close to the side of the accommodating chamber positioned at the cutting plane, and is cut positioned at described Second state of the side far from the accommodating chamber of the face of scabbling.

Further, the pressuring piece includes compressing bar and idler wheel, and one end of the compressing bar is connect with the rotating wheel, The idler wheel is rotatably set to the other end of the compressing bar, and the compressing bar is along the radial direction setting of the rotating wheel, institute The axis for stating idler wheel is parallel with the axis of the rotating wheel, when the pressuring piece is connected to the blocking head, the idler wheel and institute Blocking head is stated to be in rolling contact.

Further, the compressing bar is Pneumatic extension cylinder or hydraulic telescopic rod.

The advantageous effect that the utility model is reached is：

A kind of petroleum drilling and mining drill bit of the utility model includes main body and five wings, and cutting tooth is provided on wing, Cutting tooth in front of main body forms cutting plane, and main body has accommodating chamber and sliding through hole, is provided in accommodating chamber micro- broken Broken component.Micro- disruption elements include power motor, crushing head, resetting spring and power transmission part, and power transmission part includes rotation Wheel and two pressuring pieces.Power transmission part and the resetting spring style of work drive crushing head to move back and forth, so that the point of conical head Hold the first state of the side with the close accommodating chamber positioned at cutting plane, and the separate accommodating chamber positioned at cutting plane Second state of side.

Petroleum drilling and mining drill bit provided by the utility model, main body are installed on drilling machine, and main body can rotate, to Wing, cutting tooth etc. is driven to be rotated, to cut rock.During the cutting process, power motor is in drilling machine It works under the drive of the electric power of offer, the output shaft of power motor drives rotating wheel rotation, pressuring piece compressing by driving belt Crushing head, under the double action of pressuring piece and resetting spring, crushing head moves back and forth, and makes the tip and cutting plane of conical head It alternately contacts and is detached from, to generate certain impact to cutting plane, with the face of pointing out, the rock with the nib contacts of conical head Surface generates notch under the compressing of the tip of conical head, destroys the integrated stress of rock, cutting is more convenient, can effectively improve Stock-removing efficiency, be particularly suitable for rock have compared with high-ductility in the case of.In addition, cutting plane entrance is crossed at the tip of conical head After rock interior, rock is squeezed, makes the rock at center have the tendency that moving out, cutting tooth can be more fully hereinafter Rock is cut, center rock pillar is will not leave behind, the cutting dead angle of PDC drill bit can be well solved.

Description of the drawings

In order to more clearly illustrate the technical scheme in the embodiment of the utility model, will make below to required in embodiment Attached drawing is simply introduced, it should be apparent that, the accompanying drawings in the following description is only some realities described in the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.

Fig. 1 is the structural schematic diagram for the drill bit that the utility model embodiment provides；

Fig. 2 is the structural schematic diagram under another visual angle of Fig. 1；

Fig. 3 is the structural schematic diagram of micro- disruption elements and main body；

Fig. 4 is the structural schematic diagram of micro- disruption elements and main body；

Fig. 5 is the structural schematic diagram of crushing head；

Fig. 6 is the structural schematic diagram of power transmission part.

Reference numeral corresponds to as follows：

10- drill bits；

11- main bodys；12- wings；13- cutting tooths；The micro- disruption elements of 14-；

The cutting planes 110-；111- accommodating chambers；112- limited steps；140- power motors；141- crushing heads；142- resets Spring；143- power transmission parts；144- driving belts；145- stops head；146- connecting rods；147- conical heads；149- rotating wheels； 150- pressuring pieces；151- oppresses bar；152- idler wheels.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.

It please refers to shown in Fig. 1, Fig. 2, the utility model embodiment provides a kind of petroleum drilling and mining drill bit 10, and drill bit 10 wraps Include main body 11 and five wings 12.

Wherein, wing 12 is fixedly installed in main body 11, and five wings 12 are distributed in a ring, and cutting is provided on wing 12 Tooth 13, the cutting tooth 13 for being located at 11 front of main body form cutting plane 110, and main body 11 has accommodating chamber 111 and sliding through hole, sliding Dynamic through-hole is connected to accommodating chamber 111, and sliding through hole is located at the axis of the end of main body 11 and the axis and main body 11 of sliding through hole It overlaps, the other structures of drill bit 10 are referred to the prior art, and details are not described herein.

It please refers to shown in Fig. 3, micro- disruption elements 14 is provided in accommodating chamber 111.

It please refers to shown in Fig. 4, the concrete structure of micro- disruption elements 14 is：Micro- disruption elements 14 include power motor 140, break Broken head 141, resetting spring 142 and power transmission part 143.

Power motor 140 is fixed in accommodating chamber 111 and is driven by power supply, please refers to shown in Fig. 5, and crushing head 141 wraps Include blocking head 145, connecting rod 146 and conical head 147.

Blocking head 145 is fixed on one end of connecting rod 146, and conical head 147 is fixed on the other end of connecting rod 146, stops First 145 and connecting rod 146 be it is cylindric, blocking head 145 diameter be more than connecting rod 146 diameter, conical head 147 be circular cone Shape, one end of the separate connecting rod 146 of conical head 147 are tip, blocking head 145, connecting rod 146 and conical head 147 axis It overlaps, the axis of conical head 147 is overlapped with the axis of main body 11.

Blocking head 145 is located in accommodating chamber 111, and connecting rod 146 is slidably arranged in sliding through hole, resetting spring 142 are set to the side of the separate connecting rod 146 of blocking head 145, and resetting spring 142 is respectively held against blocking head 145 and accommodating chamber 111 inner surface and the trend for making connecting rod 146 that there is the direction for being directed away from accommodating chamber 111 to move, the interior setting of accommodating chamber 111 There is limited step 112, stops that the side of the separate resetting spring 142 of head 145 can be connected to limited step 112 and form stroke Stop.

Power transmission part 143 includes that rotating wheel 149 and two pressuring pieces 150, rotating wheel 149 are rotatably set by shaft Be placed in accommodating chamber 111, two pressuring pieces 150 are uniformly distributed along the circumferential direction of rotating wheel 149, the output shaft of power motor 140 with The shaft of rotating wheel 149 is sequentially connected by driving belt 144.

In 149 rotation process of rotating wheel, two pressuring pieces 150 can alternately oppress the separate resetting spring of blocking head 145 142 side and make resetting spring 142 compress；When pressuring piece 150 is connected to blocking head 145, pressuring piece 150 drives connecting rod 146 move towards the direction of accommodating chamber 111, and when pressuring piece 150 is detached from blocking head 145 and another pressuring piece 150 does not abut When stopping head 145, the compressing of resetting spring 142 stops head 145 and the direction for making connecting rod 146 be directed away from accommodating chamber 111 moves, So that conical head 147 is connected to rock surface or blocking head 145 is connected to limited step 112.

Power transmission part 143 and 142 style of work of resetting spring drive crushing head 141 to move back and forth, so that conical head 147 Tip have close the accommodating chamber 111 positioned at cutting plane 110 side first state, and positioned at cutting plane 110 Separate accommodating chamber 111 side the second state.

It please refers to shown in Fig. 6, in order to make pressuring piece 150 and stop that the cooperation of head 145 is more smooth, present embodiments provides Following scheme：Pressuring piece 150 includes compressing bar 151 and idler wheel 152.

One end of compressing bar 151 is connect with rotating wheel 149, and idler wheel 152 is rotatably set to the another of compressing bar 151 End, compressing bar 151 is along the radial direction setting of rotating wheel 149, and the axis of idler wheel 152 is parallel with the axis of rotating wheel 149, pressuring piece 150 be connected to blocking head 145 when, idler wheel 152 with stop head 145 be in rolling contact.

In order to the impact force that the motion range and crushing head 141 that adjust crushing head 141 apply rock, can adopt Use following scheme：It is Pneumatic extension cylinder or hydraulic telescopic rod to oppress bar 151, is not shown in figure.

Petroleum drilling and mining provided by the utility model drill bit 10, during the cutting process, power motor 140 is carried in drilling machine It works under the drive of the electric power of confession, the output shaft of power motor 140 drives rotating wheel 149 to rotate by driving belt 144, compressing Part 150 oppresses crushing head 141, and under the double action of pressuring piece 150 and resetting spring 142, crushing head 141 moves back and forth, and makes The tip of conical head 147 alternately contacts and is detached from cutting plane 110, to generate certain impact to cutting plane 110, with Face is pointed out, notch is generated under the compressing of the tip of conical head 147 with the rock surface of the nib contacts of conical head 147, destroys rock The integrated stress of stone, cutting is more convenient, can effectively improve stock-removing efficiency, is particularly suitable for rock with the feelings compared with high-ductility Under condition.

In addition, after the entrance of cutting plane 110 rock interior is crossed at the tip of conical head 147, rock is squeezed, in making Rock at the heart has the tendency that moving out, and cutting tooth 13 can more fully hereinafter cut rock, will not leave behind center Rock pillar can well solve the cutting dead angle of PDC drill bit 10.

In the present embodiment, rotating wheel 149 rotates counterclockwise, i.e., pressuring piece 150 is contacted since the lower section of blocking head 145 Stop head 145, and blocking head 145 is pushed up, to make resetting spring 142 compress, when pressuring piece 150 turns to certain angle When spending, pressuring piece 150 is detached from from the side of blocking head 145, and resetting spring 142 pushes blocking head 145 to move downward at this time, to So that crushing head 141 is moved downward with faster speed and acceleration, until conical head 147 is connected to rock surface, to rock into Row is micro- broken.

Since crushing head 141 is by 142 collective effect of pressuring piece 150 and resetting spring, there are two types of shapes for the tool of crushing head 141 State, respectively only by the effect of resetting spring 142 and respectively by the effect of pressuring piece 150 and resetting spring 142, first Under kind state, crushing head 141, which is pushed, to be risen, and under second of state, resetting spring 142 pushes the quickly movement of crushing head 141, right Impact is larger caused by rock.Movement relative to crushing head 141 by two parts power limit and follows movement, this statement always In drill bit 10 it is applicable rock plasticity and hardness it is higher, can be selected according to different rock plasticity and hardness.

Embodiment described above is only that preferred embodiments of the present invention are described, not new to this practicality The conception and scope of type is defined, without departing from the design concept of the present utility model, ordinary skill skill in this field Art personnel should all fall into the scope of protection of the utility model to all variations and modifications that the technical solution of the utility model is made, The claimed technology contents of the utility model, are all documented in technology claim.

Claims (3)

1. a kind of petroleum drilling and mining drill bit, it is characterised in that：The drill bit includes main body and five wings, and the wing fixation is set It is placed in the main body, five wings are distributed in a ring, and cutting tooth is provided on the wing, are located in front of the main body The cutting tooth form cutting plane, the main body has accommodating chamber and sliding through hole, the sliding through hole and the receiving Chamber is connected to, and the sliding through hole is located at the end of the main body and the axis weight of the axis of the sliding through hole and the main body It closes, micro- disruption elements is provided in the accommodating chamber；Micro- disruption elements include power motor, crushing head, resetting spring and Power transmission part, the power motor are fixed in the accommodating chamber and are driven by power supply, the crushing head include blocking head, Connecting rod and conical head, the blocking head are fixed on one end of the connecting rod, and the conical head is fixed on the connecting rod The other end, the blocking head and the connecting rod are cylindric, and the diameter of the blocking head is more than the diameter of the connecting rod, The conical head is coniform, and one end far from the connecting rod of the conical head is tip, the blocking head, the connection The axis of bar and the conical head overlaps, and the axis of the conical head is overlapped with the axis of the main body, and the blocking head is located at In the accommodating chamber, the connecting rod is slidably arranged in the sliding through hole, and the resetting spring is set to the resistance The side far from the connecting rod of stopper, the resetting spring are respectively held against the inner surface of the blocking head and the accommodating chamber And make the connecting rod that there is the trend for the direction movement for being directed away from the accommodating chamber, limiting stand is provided in the accommodating chamber The side far from the resetting spring of rank, the blocking head can be connected to the limited step and form stroke stop point；Institute It includes rotating wheel and two pressuring pieces to state power transmission part, and the rotating wheel is rotatably set to the accommodating chamber by shaft Interior, two pressuring pieces are uniformly distributed along the circumferential direction of the rotating wheel, the output shaft of the power motor and the rotating wheel Shaft be sequentially connected by driving belt；In the rotating wheel rotation process, two pressuring pieces can alternately oppress institute It states the side far from the resetting spring of blocking head and the resetting spring is made to compress；The pressuring piece is connected to the blocking When head, the pressuring piece drives the connecting rod to be moved towards the direction of the accommodating chamber, and the pressuring piece is detached from the blocking When head and when another described pressuring piece does not abut the blocking head, the resetting spring is oppressed the blocking head and is made described Connecting rod is directed away from the direction movement of the accommodating chamber, so that the conical head is connected to rock surface or the blocking head supports It is connected to the limited step；The power transmission part and the resetting spring style of work drive the crushing head to move back and forth, So that the tip of the conical head has the first state close to the side of the accommodating chamber positioned at the cutting plane, and The second state positioned at the side far from the accommodating chamber of the cutting plane.

2. petroleum drilling and mining drill bit according to claim 1, it is characterised in that：The pressuring piece includes compressing bar and rolling One end of wheel, the compressing bar is connect with the rotating wheel, and the idler wheel is rotatably set to the other end of the compressing bar, The compressing bar is along the radial direction setting of the rotating wheel, and the axis of the idler wheel is parallel with the axis of the rotating wheel, the pressure When urgent part is connected to the blocking head, the idler wheel is in rolling contact with the blocking head.

3. petroleum drilling and mining drill bit according to claim 1, it is characterised in that：The compressing bar is Pneumatic extension cylinder or liquid Press telescopic rod.