CN217439949U

CN217439949U - Anti-reverse device for screw drill

Info

Publication number: CN217439949U
Application number: CN202123157526.5U
Authority: CN
Inventors: 王玉刚
Original assignee: Yancheng Dongrong Petroleum Machinery Co ltd
Current assignee: Yancheng Dongrong Petroleum Machinery Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-09-16
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a prevent reverse device for screw rod drilling tool, which comprises a fixed disk, fixed disk upper end equidistance position is provided with four fan-shaped grooves, the fixed disk inboard is rotated and is connected with the go-between, the inboard that the go-between upper end is located the fan-shaped groove all is provided with the dead lever, the middle part of fixed disk is rotated and is connected with spacing pipe, spacing intraductal one end is rotated and is connected with the sloping piece, just the opposite side of sloping piece is connected with spacing pipe through first spring, the outside one end fixedly connected with fixture block of spacing pipe, fixture block sliding connection is in the spacing inslot of fixed disk upper end. The utility model discloses in, realized preventing excessively reversing the problem that the motor life that leads to is short through spacing pipe, sloping piece, fixture block and spacing groove, secondly has the slant ability of punching when having realized punching perpendicularly through motor, first bevel gear, pinion and second bevel gear.

Description

Anti-reverse device for screw drill

Technical Field

The utility model relates to a screw rod drilling tool field especially relates to a prevent reverse device for screw rod drilling tool.

Background

The screw drilling tool is a positive displacement downhole power drilling tool which takes drilling fluid as power and converts the pressure energy of the fluid into mechanical energy. When the mud pumped by the mud 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.

Chinese patent document CN203808830U relates to a screw drill, comprising a stabilizer (1), a driving head (2) for driving a drill bit, a first housing part (3) far away from the driving head (2), and a second housing part (4) close to the driving head (2), wherein the first housing part (3) and the second housing part (4) are connected, and the axis of the first housing part (3) and the axis of the second housing part (4) form an angle, wherein the stabilizer (1) is arranged on the outer wall of the first housing part (3). The device of this patent has the problem of overturning when using, because it can damage the motor to overturn to there is life weak point and has the potential safety hazard when using, secondly because the motor generally can link to each other with the threaded rod, thereby can only realize sharp commentaries on classics hole, when facing needs slant commentaries on classics hole, very inconvenient problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcomings existing in the prior art, and providing a reverse rotation prevention device for a screw drill and a screw drill.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a prevent reverse device for screw rod drilling tool, including the fixed disk, fixed disk upper end equidistance position is provided with four fan-shaped grooves, the fixed disk inboard is rotated and is connected with the go-between, the inboard that the go-between upper end is located fan-shaped groove all is provided with the dead lever, the middle part of fixed disk is rotated and is connected with spacing pipe, spacing intraductal side one end is rotated and is connected with the sloping piece, just the opposite side of sloping piece is connected with spacing pipe through first spring, the outside one end fixedly connected with fixture block of spacing pipe, fixture block sliding connection is in the spacing inslot of fixed disk upper end, the side equidistance position fixedly connected with ejector pad of go-between, the equal sliding connection in fixed disk side equidistance position has the slide bar, the slide bar is located the inboard one end fixedly connected with backing sheet of fixed disk.

Screw drilling tool, including the shell, its characterized in that: the upper end of the inner side of the shell is provided with a motor, the output end of the motor extends downwards and is fixedly connected with a first bevel gear, the middle of the bottom end of the first bevel gear is fixedly connected with an auxiliary gear, the auxiliary gear is meshed and connected with the middle of the inner side of a second bevel gear, and the middle of the bottom end of the second bevel gear is fixedly connected with a threaded rod main body.

As a further description of the above technical solution:

and a second spring is arranged between the supporting sheet and the inner side edge of the fixed disc.

As a further description of the above technical solution:

one side of the push block is provided with an arc-shaped edge.

As a further description of the above technical solution:

and positioning rods are arranged at one ends of the fixing rods in the fan-shaped grooves.

As a further description of the above technical solution:

and a rubber sleeve is arranged on the outer side of the oblique sheet.

As a further description of the above technical solution:

the side of the shell is provided with a U-shaped slot.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, at first the threaded rod is placed in the middle of spacing pipe, and the effect of resistance can not be played to the rotation of threaded rod to the slide when clockwise turning in spacing pipe, when anticlockwise rotating, can block the slide with spacing whole anticlockwise rotation of pipe, can reduce spacing pipe pivoted range under the effect of fixture block and spacing groove, can realize reducing the range of overturning to realize the effect of protection motor.

2. The utility model discloses in, through moving the pinion downwards to second bevel gear upper end inboard removal to can drive second bevel gear rotatory through the motor, carry out the rotating hole perpendicularly downwards with the threaded rod main part, secondly can mesh mahjong first bevel gear and second bevel gear in will taking out and moving the output shaft of motor to the recess through the motor, thereby can drive the threaded rod main part through first bevel gear rotatory, realize the function that can the slant carries out the rotating hole.

Drawings

Fig. 1 is a top view of an anti-reverse device for a screw drill according to the present invention;

fig. 2 is a sectional view of an anti-reverse device for a screw drill according to the present invention;

fig. 3 is a perspective view of the screw drill provided by the present invention;

fig. 4 is a schematic view of the motor of the screw drill provided by the present invention.

Illustration of the drawings:

1. a housing; 2. a motor; 3. a first bevel gear; 4. a pinion gear; 5. a second bevel gear; 6. fixing the disc; 7. a sector groove; 8. a limiting pipe; 9. a clamping block; 10. a limiting groove; 11. a fixing rod; 12. a first spring; 13. oblique sheets; 14. a second spring; 15. a push block; 16. a support sheet; 17. a slide bar; 18. A connecting ring; 19. threaded rod body.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: an anti-reverse device for a screw drill comprises a fixed disk 6, four fan-shaped grooves 7 are arranged at equidistant positions at the upper end of the fixed disk 6, the fan-shaped grooves 7 are used for sliding limiting fixing rods 11, the inner side of the fixed disk 6 is rotatably connected with a connecting ring 18, the upper ends of the connecting ring 18 are respectively provided with the fixing rods 11 at the inner sides of the fan-shaped grooves 7, one fixing rod 11 can drive the four fixing rods 11 to simultaneously rotate after rotating, the middle part of the fixed disk 6 is rotatably connected with a limiting pipe 8, the limiting pipe 8 is used for placing a threaded rod, one end of the inner side of the limiting pipe 8 is rotatably connected with an inclined sheet 13, the other side of the inclined sheet 13 is connected with the limiting pipe 8 through a first spring 12, the inclined sheet 13 and the first spring 12 cannot bear resistance when the threaded rod rotates forwards, the resistance can be prevented under the action of the inclined sheet 13 when the threaded rod rotates backwards, one end of the outer side of the limiting pipe 8 is fixedly connected with a clamping block 9, the clamping block 9 is slidably connected in a limiting groove 10 at the upper end of the fixed disk 6, the sliding limiting device has the advantages that the limiting can be performed through the sliding of the clamping block 9 in the limiting groove 10, the pushing block 15 is fixedly connected to the equidistant position of the side edge of the connecting ring 18, the sliding rod 17 can be pushed out outwards through the supporting sheet 16, the sliding rod 17 is slidably connected to the equidistant position of the side edge of the fixed disk 6, the supporting sheet 16 is fixedly connected to one end, located on the inner side of the fixed disk 6, of the sliding rod 17, the movable range of the sliding rod 17 is limited through the supporting sheet 16, and the sliding rod 17 is prevented from sliding out of the fixed disk 6.

Screw drilling tool, which comprises an

outer shell

1, 1 inboard upper end of shell is provided with motor 2, motor 2 can place the upper end at shell 1, the first bevel gear 3 of output downwardly extending fixedly connected with of motor 2, the first bevel gear 3 of motor 2 drive rotates, the bottom middle part fixedly connected with pinion 4 of first bevel gear 3, first bevel gear 3 drives pinion 4 and rotates, the inboard middle part at second bevel gear 5 is connected in the meshing of pinion 4, thereby pinion 4 drives second bevel gear 5 through the meshing with second bevel gear 5 middle part inboard, the bottom middle part fixedly connected with threaded rod main part 19 of second bevel gear 5, second bevel gear 5 drives threaded rod main part 19 and rotates.

A second spring 14 is arranged between the supporting sheet 16 and the inner side edge of the fixed disc 6, the sliding rod 17 can be reset through the second spring 14, one side of the pushing block 15 is set to be an arc-shaped edge, the pushing block 15 can easily push the sliding rod 17 out, positioning rods are arranged at one ends, located at the fixed rod 11, of the fan-shaped grooves 7, the positions of the fixed rods 11 can be fixed through the positioning rods, rubber sleeves are arranged on the outer sides of the inclined pieces 13, friction force between the threaded rods and the inclined pieces 13 is increased, the side edges of the shell 1 are provided with U-shaped grooves, the motor 2 can be taken out of the shell 1, therefore, the output end is clamped in the grooves, the first bevel gear 3 and the second bevel gear 5 are meshed, and the effect of inclined rotary holes is achieved.

The working principle is as follows: the fixing rod 11 is rotated, the position of the fixing rod 11 is clamped in the fan-shaped groove 7 under the action of the positioning rod, the sliding rod 17 is pushed out under the action of the pushing block 15, the position of the sliding rod 17 is fixed, the fixing disc 6 can be fixed in a pipeline, the threaded rod is placed in the middle of the limiting tube 8, the inclined sheet 13 cannot resist the rotation of the threaded rod when the limiting tube 8 rotates clockwise, the inclined sheet 13 can be clamped to rotate the limiting tube 8 integrally anticlockwise when the limiting tube 8 rotates anticlockwise, the rotating amplitude of the limiting tube 8 can be reduced under the action of the clamping block 9 and the limiting groove 10, the auxiliary gear 4 moves downwards to the inner side of the upper end of the second bevel gear 5 to move, the motor 2 can drive the second bevel gear 5 to rotate, the threaded rod main body 19 rotates downwards vertically, and then the output shaft of the motor 2 can be taken out and moved into the groove through the motor 2 to engage the first bevel gear 3 and the second bevel gear 5, therefore, the threaded rod main body 19 can be driven to rotate through the first bevel gear 3, and the function of obliquely rotating the hole is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A prevent reverse device for screw rod drilling tool, including fixed disk (6), its characterized in that: the utility model discloses a fixing disc (6) for the automobile seat, including fixed disc (6) upper end equidistance position and four fan-shaped grooves (7), fixed disc (6) inboard rotation is connected with go-between (18), the inboard that go-between (18) upper end is located fan-shaped groove (7) all is provided with dead lever (11), the middle part of fixed disc (6) is rotated and is connected with spacing pipe (8), spacing pipe (8) inboard one end is rotated and is connected with sloping piece (13), just the opposite side of sloping piece (13) is connected with spacing pipe (8) through first spring (12), the outside one end fixedly connected with fixture block (9) of spacing pipe (8), fixture block (9) sliding connection is in spacing groove (10) of fixed disc (6) upper end, the side equidistance position fixedly connected with ejector pad (15) of go-between (18), fixed disc (6) side equidistance position equal sliding connection has slide bar (17), one end of the sliding rod (17) positioned at the inner side of the fixed disc (6) is fixedly connected with a supporting sheet (16).

2. The anti-backup device for a progressive cavity drill according to claim 1, wherein: and a second spring (14) is arranged between the support sheet (16) and the inner side edge of the fixed disc (6).

3. The anti-backup device for a progressive cavity drill according to claim 1, wherein: one side of the push block (15) is provided with an arc-shaped edge.

4. The anti-backup device for a progressive cavity drill according to claim 1, wherein: positioning rods are arranged at one ends, located on the fixing rods (11), of the inner portions of the fan-shaped grooves (7).

5. The anti-backup device for a progressive cavity drill according to claim 1, wherein: and a rubber sleeve is arranged on the outer side of the inclined sheet (13).