CN212359695U - Braking disjunctor water cap and screw rod drilling tool release card structure - Google Patents
Braking disjunctor water cap and screw rod drilling tool release card structure Download PDFInfo
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- CN212359695U CN212359695U CN202020577340.1U CN202020577340U CN212359695U CN 212359695 U CN212359695 U CN 212359695U CN 202020577340 U CN202020577340 U CN 202020577340U CN 212359695 U CN212359695 U CN 212359695U
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Abstract
The utility model relates to a stuck releasing structure of a brake conjoined water cap and a screw drill, wherein the brake conjoined water cap comprises a water cap body, the outer circular surface of the water cap body is provided with a plurality of limiting grooves, the stuck releasing structure of the screw drill comprises a brake conjoined water cap, a shell and a plurality of pins, and the pins are arranged in the space between the limiting grooves and the inner wall of the shell one by one; the pin is supported by the spring so that torque of the housing can be transmitted to the water cap body when the housing is rotated in a first direction with respect to the water cap body; however, when the water cap body is rotated in the first direction with respect to the housing, the plurality of pins allow the water cap body to idle in the first direction with respect to the housing. When the drill bit meets complex strata such as hard rock and the like and is braked, the shell can be directly driven to rotate by the motor, the shell and the transmission shaft are meshed into a whole by the brake conjoined water cap, the torque generated by the torque superposition internal hydraulic motor of the shell is utilized to act on the drill bit to realize the drilling on the hard rock stratum, and the working efficiency can be greatly improved by the compound drilling.
Description
Technical Field
The utility model relates to an oil development equipment technical field especially relates to braking disjunctor water cap and screw rod drilling tool release card structure.
Background
The screw drilling tool is a positive displacement downhole power drilling tool which takes drilling fluid as power and converts liquid pressure energy into mechanical energy. When slurry pumped by the slurry pump flows through the bypass valve and enters the motor, a certain pressure difference is formed between the inlet and the outlet of the motor, the rotor is pushed to rotate around the axis of the stator, and the rotating speed and the torque are transmitted to the drill bit through the universal shaft and the transmission shaft, so that the drilling operation is realized.
When a screw drill drills hard rocks, particularly in complex strata, a drill bit is easy to block and cannot drill continuously, the conventional method is to lift the drill bit away from one end of a well bottom and rotate normally, and then drill again, so that the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a braking disjunctor water cap and screw rod drilling tool unfreeze structure, be convenient for unfreeze when the drill bit card dies, do benefit to and improve work efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the brake conjoined water cap comprises a water cap body, wherein a plurality of limiting grooves are formed in the outer circular surface of the water cap body, the limiting grooves are arranged at equal intervals along the circumferential direction of the water cap body, and the depth of each limiting groove is gradually increased from one end to the other end along the circumferential direction of the water cap body;
the wall of the limiting groove is provided with a hole, and the hole is positioned on the end face of the deepest end of the limiting groove.
Preferably, there are at least three of the restraint slots.
The lower end of the water cap body is provided with a threaded connecting hole, the outer side wall of the water cap body is provided with a plurality of side holes, and the inner ends of the side holes are communicated with the threaded connecting hole.
Furthermore, the limiting groove is located below the side hole.
Furthermore, a spring is arranged in the hole, the inner end of the spring is fixedly connected with the hole wall of the hole, and the outer end of the spring is a free end.
Furthermore, the free end of the spring is connected with a steel ball.
Alternatively, the free end of the spring is connected to a pin.
The screw drill releasing structure comprises a shell and a plurality of pins besides the braking conjoined water cap, wherein the water cap body is positioned in the shell, and the pins are arranged in a space between the limiting groove and the inner wall of the shell one by one; the pins are supported by springs so that the plurality of pins engage with the inner wall of the housing so that torque of the housing can be transmitted to the water cap body when the housing is rotated in a first direction with respect to the water cap body;
but when the water cap body is rotated in the first direction with respect to the housing, so that the plurality of pins allow the water cap body to idle in the first direction with respect to the housing.
Furthermore, a steel ball is arranged between the spring and the pin, the free end of the spring is connected with the steel ball, and the steel ball is in contact with the pin.
Furthermore, the outer diameter of the steel ball is not larger than the inner diameter of the hole.
Further, a driving device for driving the shell to rotate along the first direction is connected to the upper end of the shell.
Compared with the prior art, the utility model discloses following beneficial effect has:
use the utility model discloses, when the drill bit runs into complicated stratum such as hard rock and when taking place the braking, accessible motor direct drive shell is rotatory, brake disjunctor water cap is with the shell this moment, the transmission shaft meshing is a whole, the moment of torsion that utilizes the inside hydraulic motor of the moment of torsion stack of shell to produce is used in the drilling of realization on hard rock layer, when final breakthrough hard rock layer, the resistance that the drill bit received diminishes, it is interior when the moment of torsion that produces at hydraulic motor is enough to drive the drill bit and creeps into, the rotational speed of shell is less than the hydraulic motor rotational speed, thereby disjunctor water cap breaks away from the shell body and realizes releasing the card, compound drilling can greatly improve work efficiency like this.
Drawings
FIG. 1 is a longitudinal sectional view of a middle water cap body according to the present invention;
FIG. 2 is a cross-sectional view taken at A in FIG. 1;
FIG. 3 is a cross-sectional view of the brake one-piece water cap according to the first embodiment;
FIG. 4 is a longitudinal sectional view of a releasing structure of the screw drill according to the first embodiment;
FIG. 5 is a cross-sectional view at B in FIG. 4;
FIG. 6 is a cross-sectional view of the brake one-piece water cap according to the second embodiment;
FIG. 7 is a longitudinal sectional view of the releasing structure of the screw drill according to the second embodiment;
fig. 8 is a schematic structural view of the screw drill of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1 and 2, the brake conjoined water cap disclosed in this embodiment includes a water cap body 1, a plurality of limiting grooves 11 are formed on an outer circumferential surface of the water cap body 1, the plurality of limiting grooves 11 are arranged at equal intervals along a circumferential direction of the water cap body 1, and depths of the limiting grooves 11 gradually increase from one end to the other end along the circumferential direction of the water cap body 1;
the wall of the limit groove 11 is provided with a hole 12, and the hole 12 is positioned on the end surface of the deepest end of the limit groove 11.
The number of the limiting grooves 11 is reasonably arranged according to needs. Preferably, there are at least three of the restraint slots 11.
The lower end of the water cap body 1 is provided with a threaded connection hole 15 for connecting with a transmission shaft. The outer side wall of the water cap body 1 is provided with a plurality of side holes 16, the inner ends of the side holes 16 are communicated with the threaded connecting holes 15, and the side holes 16 are used for circulating drilling fluid. The limiting groove 11 is positioned below the side hole 16.
The hole 12 is provided with a spring 13, the inner end of the spring 13 is fixedly connected with the hole wall of the hole 12, and the outer end of the spring 13 is a free end.
As shown in fig. 3, a pin 17 is connected to the free end of the spring 13, and the pin 17 is slidably engaged with the limiting groove 11.
As shown in fig. 4 and 5, the screw drill tool jam release structure disclosed in this embodiment includes the above-mentioned brake conjoined water cap and the housing 2, the water cap body 1 is located in the housing 2, and the pin 17 is disposed in the space between the limiting groove 11 and the inner wall of the housing 2. The pins 17 are supported by the springs 13 so that the plurality of pins 17 are engaged with the inner wall of the housing 2, so that the torque of the housing 2 can be transmitted to the water cap body 1 when the housing 2 is rotated in the first direction with respect to the water cap body 1.
But when the water cap body 1 is rotated in the first direction with respect to the housing 2, the plurality of pins 17 are made to allow the water cap body 1 to be idly rotated in the first direction with respect to the housing 2.
The upper end of the shell 2 is connected with a driving device which is used for driving the shell to rotate along a first direction, and the driving device comprises a motor and a transmission mechanism.
As shown in FIG. 8, the screw drill of the present invention further comprises a universal shaft assembly 3 and a transmission shaft assembly, wherein the upper end of the water cap body 1 is connected with the universal shaft assembly 3, the lower end of the water cap body 1 is connected with the transmission shaft 4 of the transmission shaft assembly, and the lower end of the transmission shaft 4 is connected with a drill bit.
During normal work, the shell 2 does not rotate, the water cap body 1, the transmission shaft 4 and the drill bit rotate along the first direction under the action of the motor rotor, and the water cap body 1 is in a free state and can idle along the first direction relative to the shell 2.
When the drill bit meets hard rock and blocks, start the drive arrangement who is connected with shell 2, shell 2 is being followed the first direction rotation by the direct drive of motor, and pin 17 and the joint of water cap body 1 and 2 inner walls of shell this moment, and under the effect of frictional force, the moment of torsion transmission of shell 2 is for water cap body 1, transmission shaft 4 and drill bit, makes the drill bit continue to rotate along the first direction then, continues broken rock, realizes the unfreezing of drill bit. After the drill bit is unlocked, the driving device of the housing 2 is stopped.
Example two
The difference between this embodiment and the first embodiment is: as shown in FIG. 6, in this embodiment, a steel ball 14 is connected to the free end of the spring 13, and the outer diameter of the steel ball 14 is not larger than the inner diameter of the hole 12.
As shown in fig. 7, the screw drill tool jam release structure disclosed in this embodiment includes a brake conjoined water cap, a housing 2 and a plurality of pins 17, the water cap body 1 is located in the housing 2, the pins 17 are arranged in a space between the limiting groove 11 and the inner wall of the housing 2 one by one, and the elastic force of the spring 13 is transmitted to the pins 17 through the steel ball 13. The pins 17 are supported by the elastic force of the spring 13 so that the plurality of pins 17 are engaged with the inner wall of the housing 2, so that the torque of the housing 2 can be transmitted to the water cap body 1 when the housing 2 is rotated in the first direction with respect to the water cap body 1.
But when the water cap body 1 is rotated in the first direction with respect to the housing 2, the plurality of pins 17 are made to allow the water cap body 1 to be idly rotated in the first direction with respect to the housing 2.
When the drill bit runs into complicated stratums such as hard rock and the like and is braked and stuck, the shell can be directly driven to rotate by the motor, the shell and the transmission shaft are meshed into a whole by the brake conjoined water cap, the torque generated by the hydraulic motor in the shell is superposed and used for realizing drilling on the hard rock stratum, when the hard rock stratum is finally broken through, the resistance borne by the drill bit is reduced, the torque generated by the hydraulic motor in the drill bit is enough to drive the drill bit to drill, the rotating speed of the shell is less than that of the hydraulic motor, and the conjoined water cap is separated from the shell so as to realize unfreezing, so that the working efficiency of the composite drilling can be greatly improved.
Of course, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and that such changes and modifications are intended to be included within the scope of the appended claims.
Claims (10)
1. Braking disjunctor water cap, including the water cap body, its characterized in that: the outer circular surface of the water cap body is provided with a plurality of limiting grooves, the limiting grooves are arranged at equal intervals along the circumferential direction of the water cap body, and the depth of the limiting grooves is gradually increased from one end to the other end along the circumferential direction of the water cap body;
the wall of the limiting groove is provided with a hole, and the hole is positioned on the end face of the deepest end of the limiting groove.
2. The brake conjoined water cap according to claim 1, wherein: the spacing groove has at least three.
3. The brake conjoined water cap according to claim 1, wherein: the lower end of the water cap body is provided with a threaded connecting hole, the outer side wall of the water cap body is provided with a plurality of side holes, and the inner ends of the side holes are communicated with the threaded connecting hole.
4. The brake conjoined water cap according to claim 3, wherein: the limiting groove is located below the side hole.
5. The brake conjoined water cap according to claim 1, 2, 3 or 4, wherein: the hole is internally provided with a spring, the inner end of the spring is fixedly connected with the hole wall of the hole, and the outer end of the spring is a free end.
6. The brake conjoined water cap according to claim 5, wherein: the free end of the spring is connected with a steel ball.
7. The brake conjoined water cap according to claim 5, wherein: the free end of the spring is connected with a pin.
8. The screw drill releasing structure comprises the brake conjoined water cap as in any one of claims 1 to 5, and is characterized in that: the water cap further comprises a shell and a plurality of pins, the water cap body is positioned in the shell, and the pins are arranged in a space between the limiting groove and the inner wall of the shell one by one; the pins are supported by springs so that the plurality of pins engage with the inner wall of the housing so that torque of the housing can be transmitted to the water cap body when the housing is rotated in a first direction with respect to the water cap body;
but when the water cap body is rotated in the first direction with respect to the housing, so that the plurality of pins allow the water cap body to idle in the first direction with respect to the housing.
9. The screw drill tool freeing structure of claim 8, wherein: a steel ball is arranged between the spring and the pin, the free end of the spring is connected with the steel ball, and the steel ball is in contact with the pin.
10. The screw drill tool freeing structure of claim 8, wherein: and the upper end of the shell is connected with a driving device for driving the shell to rotate along the first direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020577340.1U CN212359695U (en) | 2020-04-17 | 2020-04-17 | Braking disjunctor water cap and screw rod drilling tool release card structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020577340.1U CN212359695U (en) | 2020-04-17 | 2020-04-17 | Braking disjunctor water cap and screw rod drilling tool release card structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212359695U true CN212359695U (en) | 2021-01-15 |
Family
ID=74132846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020577340.1U Active CN212359695U (en) | 2020-04-17 | 2020-04-17 | Braking disjunctor water cap and screw rod drilling tool release card structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212359695U (en) |
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2020
- 2020-04-17 CN CN202020577340.1U patent/CN212359695U/en active Active
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