CN112963102A - Polish rod clip - Google Patents

Polish rod clip Download PDF

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Publication number
CN112963102A
CN112963102A CN202110148332.4A CN202110148332A CN112963102A CN 112963102 A CN112963102 A CN 112963102A CN 202110148332 A CN202110148332 A CN 202110148332A CN 112963102 A CN112963102 A CN 112963102A
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CN
China
Prior art keywords
base
arc
shaped groove
polish rod
frosted
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Granted
Application number
CN202110148332.4A
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Chinese (zh)
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CN112963102B (en
Inventor
安洪军
王彩娟
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Petrochina Co Ltd
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Petrochina Co Ltd
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Priority to CN202110148332.4A priority Critical patent/CN112963102B/en
Publication of CN112963102A publication Critical patent/CN112963102A/en
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Publication of CN112963102B publication Critical patent/CN112963102B/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/10Slips; Spiders ; Catching devices

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The application relates to a polished rod checkpost belongs to oil development technical field. The polish rod checkpost includes first base, second base, a plurality of baffles, screw rod, nut, two dull polish facing, facing mounting and a plurality of ball, wherein: first base is the rectangle piece, vertically be provided with first arc wall and the second arc wall of mutual intercommunication on the side of rectangle piece, the second base is the rectangle piece, vertically be provided with the third arc wall and the fourth arc wall of mutual intercommunication on the side of rectangle piece, a plurality of baffles vertically set up in the first arc wall of first base and the third arc wall of second base, first base and second base pass through the screw rod and the nut is connected, two dull polish facing are the arc piece, the facing mounting is used for fixing two dull polish facing on the outer wall of polished rod, the ball sets up between adjacent baffle. By adopting the method and the device, the abrasion to the optical rod is reduced, and the safety in the oil extraction process is improved.

Description

Polish rod clip
Technical Field
The application relates to the technical field of oil exploitation, in particular to a polish rod clamp.
Background
In the oil extraction process of the oil field, the polish rod clamp and the sucker rod are usually fixed to complete construction operation.
The traditional polished rod clip is provided with clamping teeth, the polished rod clip is fixed on the polished rod through the engagement between the clamping teeth and the polished rod (namely, the sucker rod), but the surface of the polished rod is damaged by the fixing mode, so that the surface of the polished rod is provided with an engagement mark, the strength of the polished rod is influenced to a certain extent, the engagement mark on the polished rod can also be abraded by a device in contact with the surface of the polished rod in the next operation, and great risk exists in the oil extraction process.
Disclosure of Invention
The embodiment of the application provides a polish rod clip, can solve the technical problem who exists among the correlation technique, polish rod clip's technical scheme as follows:
the embodiment of the application provides a polish rod checkpost, polish rod checkpost includes first base 1, second base 2, a plurality of baffle 3, screw rod 4, nut 5, two dull polish facing 6, facing mounting 7 and a plurality of ball 8, wherein:
the first base 1 is a rectangular block, a first arc-shaped groove 11 and a second arc-shaped groove 12 which are mutually communicated are longitudinally arranged on the side face of the rectangular block, the radius of the corresponding arc line of the first arc-shaped groove 11 in different horizontal sections is increased along with the increase of the height of the horizontal section, the top end of the first arc-shaped groove 11 is positioned on the top surface of the first base 1, the bottom end of the first arc-shaped groove 11 is communicated with the top end of the second arc-shaped groove 12, the bottom end of the second arc-shaped groove 12 is positioned on the bottom surface of the first base 1, and the radius of the second arc-shaped groove 12 is matched with the radius of the polished rod 9;
the second base 2 is a rectangular block, a third arc-shaped groove 21 and a fourth arc-shaped groove 22 which are communicated with each other are longitudinally arranged on the side face of the rectangular block, the radius of the corresponding arc line of the third arc-shaped groove 21 in different horizontal sections is increased along with the increase of the height of the horizontal section, the top end of the third arc-shaped groove 21 is positioned on the top face of the second base 2, the bottom end of the third arc-shaped groove 21 is communicated with the top end of the fourth arc-shaped groove 22, the bottom end of the fourth arc-shaped groove 22 is positioned on the bottom face of the second base 2, and the radius of the fourth arc-shaped groove 22 is matched with the radius of the polished rod 9;
the plurality of partition boards 3 are longitudinally arranged in the first arc-shaped groove 11 of the first base 1 and the third arc-shaped groove 21 of the second base 2, the intersection line of the planes where the plurality of partition boards 3 arranged on the first base 1 are positioned is the axis of the first arc-shaped groove 11, and the intersection line of the planes where the plurality of partition boards 3 arranged on the second base 2 are positioned is the axis of the third arc-shaped groove 21;
the first base 1 and the second base 2 are fixedly connected through a screw 4 and a nut 5, the first arc-shaped groove 11 of the first base 1 is opposite to the third arc-shaped groove 21 of the second base 2, and the second arc-shaped groove 12 of the first base 1 is opposite to the fourth arc-shaped groove 22 of the second base 2;
the two frosted linings 6 are arc-shaped sheets and have rough surfaces;
the facing fixing piece 7 is used for fixing two frosted facing 6 on the outer wall of the polish rod 9;
the surface of the balls 8 is rough, and the balls 8 are disposed between the adjacent separators 3.
In one possible implementation, two sanding pads 6 are hinged at a first side edge, and the second side edges of the two sanding pads 6 are fixedly attached by pad fasteners 7.
In a possible implementation, the lining retainer 7 comprises a first fixing base 71 and a second fixing base 72;
the first fixing base 71 and the second fixing base 72 are fixed to the two sanding linings 6, respectively;
articulated on the first unable adjustment base 71 have fixed the knot, be provided with solid fixed ring on the second unable adjustment base 72, be provided with the bar hole on the fixed knot, the position in bar hole, shape and size and solid fixed ring phase-match.
In a possible implementation, the number of screws 4 is 4.
In a possible realization, the number of partitions 3 provided on the first mount 1 is 4 and the number of partitions 3 provided on the second mount 2 is 4.
In one possible implementation, the number of balls 8 is 6.
In one possible implementation, the ball 8 is a solid metal sphere.
In one possible implementation, the abrasive backing sheet 6 is a sheet of abrasive metal.
In a possible implementation manner, a plurality of first through holes parallel to each other are arranged on the first base 1, a plurality of second through holes parallel to each other are arranged on the second base 2, each first through hole is coaxial with one second through hole, each screw rod 4 is arranged in one first through hole and one second through hole, and nuts 5 are arranged at two ends of each screw rod 4.
In a possible realization, the edges of the first seat 1 and of the second seat 2 are provided with rounded corners.
The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:
the embodiment of the application provides a polished rod checkpost, can be through the first arc wall in the first base and the third arc wall extrusion ball in the second base, make ball extrusion dull polish facing, dull polish facing extrusion polished rod to make polished rod and polished rod checkpost fixed connection be in the same place. By adopting the polish rod clamp, the abrasion to the polish rod is reduced, and the safety in the oil extraction process is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In the drawings:
fig. 1 is a schematic structural view of a polish rod clip according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a polish rod clip according to an embodiment of the present invention.
Description of the figures
1. A first base;
11. a first arc-shaped slot; 12. a second arc-shaped slot;
2. a second base;
21. a third arc-shaped slot; 22. a fourth arc-shaped groove;
3. a partition plate;
4. a screw;
5. a nut;
6. a frosted facing;
7. a lining fastener;
71. a first stationary base; 72. a second stationary base;
8. a ball bearing;
9. a polish rod.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
The present embodiment provides a polish rod clip, as shown in fig. 1, which includes a first base 1, a second base 2, a plurality of spacers 3, a screw 4, a nut 5, two frosted linings 6, a lining retainer 7, and a plurality of balls 8.
Wherein, first base 1 is the rectangular block, vertically be provided with first arc wall 11 and the second arc wall 12 of mutual intercommunication on the side of rectangular block, the radius of the pitch arc that first arc wall 11 corresponds in different horizontal cross-sections increases along with horizontal cross-section's high increase, the top of first arc wall 11 is located the top surface of first base 1, the bottom of first arc wall 11 is linked together with the top of second arc wall 12, the bottom of second arc wall 12 is located the bottom surface of first base 1, the radius of second arc wall 12 cooperatees with the radius of polished rod 9.
First base 1 is a rectangular block, first arc wall 11 and second arc wall 12 have been seted up on the lateral wall that is close to polished rod 9 of rectangular block, the bottom of first arc wall 11 and the top of second arc wall 12 are linked together, the top of first arc wall 11 is located the top surface of first base 1, the bottom of second arc wall 12 is located the bottom surface of first base 1, first arc wall 11 is different at the horizontal cross-section's on the co-altitude shape, along with the increase of height, the radius of the horizontal cross-section's of first arc wall 11 pitch arc also increases, so the radius of the horizontal cross-section's of the bottommost of first arc wall 11 is minimum. While the shape and size of the horizontal cross-sectional arc of the second arc-shaped groove 12 at different heights are the same, and the radius of the horizontal cross-sectional arc of the second arc-shaped groove 12 is the same as the radius of the horizontal cross-sectional arc of the lowermost end of the first arc-shaped groove 11.
Second base 2 is the rectangular block, vertically be provided with the third arc wall 21 and the fourth arc wall 22 of mutual intercommunication on the side of rectangular block, the radius of the pitch arc that third arc wall 21 corresponds in different horizontal cross-sections increases along with horizontal cross-section's high increase, the top of third arc wall 21 is located the top surface of second base 2, the bottom of third arc wall 21 is linked together with the top of fourth arc wall 22, the bottom of fourth arc wall 22 is located the bottom surface of second base 2, the radius of fourth arc wall 22 cooperatees with the radius of polished rod 9.
First base 1 and second base 2's shape and size are all the same, second base 2 also is a rectangular block, third arc wall 21 and fourth arc wall 22 have been seted up on the lateral wall that is close to polished rod 9 of rectangular block, the bottom of third arc wall 21 and the top of fourth arc wall 22 are linked together, the top of third arc wall 21 is located the top surface of second base 2, the bottom of fourth arc wall 22 is located the bottom surface of second base 2, the shape of the horizontal cross-section of third arc wall 21 on different heights is different, along with the increase of height, the radius of the horizontal cross-section's of third arc wall 21 pitch arc also increases, so the radius of the horizontal cross-section's of the bottom of third arc wall 21 pitch arc is minimum. While the shape and size of the horizontal cross-sectional arc of the fourth arc-shaped slot 22 at different heights are the same, and the radius of the horizontal cross-sectional arc of the fourth arc-shaped slot 22 is the same as the radius of the bottommost horizontal cross-sectional arc of the third arc-shaped slot 21.
The first base 1 and the second base 2 are oppositely enclosed on two sides of the polish rod 9, namely, the first arc-shaped groove 11 and the second arc-shaped groove 12 of the first base 1, and the third arc-shaped groove 21 and the fourth arc-shaped groove 22 of the second base 2 are oppositely arranged on two sides of the polish rod 9 face to face, one part of the polish rod 9 is arranged in the first arc-shaped groove 11 and the second arc-shaped groove 12 of the first base 1, and the two opposite parts of the polish rod 9 are arranged in the third arc-shaped groove 21 and the fourth arc-shaped groove 22 of the second base 2. The radius of the second arc-shaped groove 12 and the radius of the fourth arc-shaped groove 22 are matched with the radius of the polish rod 9, and the polish rod clamp and the polish rod 9 are preliminarily fixed by clamping the polish rod 9 through the second strand-shaped groove 12 and the fourth arc-shaped groove 22.
Optionally, each side of the first base 1 and the second base 2 is provided with a fillet to avoid the device contacting the first base 1 and the second base 2 from being damaged or scratched, etc.
The plurality of partition boards 3 are longitudinally arranged in the first arc-shaped groove 11 of the first base 1 and the third arc-shaped groove 21 of the second base 2, the intersecting line of the planes where the plurality of partition boards 3 arranged on the first base 1 are located is the axis of the first arc-shaped groove 11, and the intersecting line of the planes where the plurality of partition boards 3 arranged on the second base 2 are located is the axis of the third arc-shaped groove 21.
The partition board 3 is an arc-shaped board, the inner wall and the outer wall of the partition board are both arc surfaces, and the arc surface shapes of the inner wall and the outer wall are matched. The baffle 3 vertically sets up in the first arc wall 11 of first base 1 and the third arc wall 21 of second base 2, and the cambered surface of the outer wall of baffle 3 laminates mutually with the tank bottoms of first arc wall 11, third arc wall 21, and baffle 3 can be through welded fastening in first arc wall 11 and third arc wall 21, also can be a plurality of baffles 3 and 1 integrated into one piece of first base, a plurality of baffles 3 and 2 integrated into one piece of second base of the same quantity. The even setting of a plurality of baffles 3 is in first arc wall 11 and third arc wall 21, with the even a plurality of first slides that divide into of first arc wall 11, with the even a plurality of second slides that divide into of third arc wall 21. There is a gap between the spacer 3 and the polish rod 9 for the placement of the abrasive pad 6 between the first mount 1 and the polish rod 9, and between the second mount 2 and the polish rod 9.
Alternatively, the number of the partitions 3 provided on the first chassis 1 may be 4, and the number of the partitions 3 provided on the second chassis 2 may be 4. Four partition plates 3 can be arranged on the first base 1, the first arc-shaped groove 11 is divided into three arc-shaped slide ways by the four partition plates 3, namely three first slide ways, and similarly, the fourth partition plates 3 can also be arranged on the second base 2, so that the third arc-shaped groove 21 is divided into three arc-shaped slide ways, namely three second slide ways.
The first base 1 and the second base 2 are fixedly connected through a screw rod 4 and a nut 5, the first arc-shaped groove 11 of the first base 1 is opposite to the third arc-shaped groove 21 of the second base 2, and the second arc-shaped groove 12 of the first base 1 is opposite to the fourth arc-shaped groove 22 of the second base 2. A plurality of first through holes which are parallel to each other are formed in the first base 1, a plurality of second through holes which are parallel to each other are formed in the second base 2, each first through hole is coaxial with one second through hole, each screw rod 4 is arranged in each first through hole and each second through hole, and nuts 5 are arranged at two ends of each screw rod 4 respectively.
The side wall of the other side of the first base 1 corresponding to the side wall provided with the first arc-shaped groove 11 and the second arc-shaped groove 12 is a rectangular surface, four through holes are respectively arranged on four corners of the rectangular surface, and similarly, four through holes are also arranged on the position of the second base 2 corresponding to the first base 1. When the first base 1 and the second base 2 are correspondingly placed on two sides of the polish rod 9, namely the top surface of the first base 1 and the top surface of the second base are on the same horizontal plane, the bottom surface of the first base 1 and the bottom surface of the second base 2 are also on the same horizontal plane, the first arc-shaped groove 11 and the third arc-shaped groove 21 are correspondingly placed, and when the second arc-shaped groove 12 and the fourth arc-shaped groove 22 are correspondingly placed, four through holes on the first base 1 correspond to four through hole positions on the second base 2.
Correspondingly, the number of screws 4 is 4. The first base 1 and the second base 2 are connected in series through the screws 4, that is, each screw 4 respectively passes through two corresponding through holes of the first base 1 and the second base 2. The two ends of the screw rod 4 protrude out of the parts of the first base 1 and the second base 2, and are respectively provided with a nut 5, and the nuts 5 are screwed, so that the first base 1 and the second base 2 can clamp the polish rod 9 through the second strand-shaped groove 12 and the fourth arc-shaped groove 22, and the polish rod 9 is pre-fixed on the polish rod 9. It should be noted that the nut 5 does not need to be tightened too much, and the nut 5 only needs to be screwed until the first base 1 and the second base 2 do not fall off the polish rod 9.
The two frosted linings 6 are arc-shaped sheets and have rough surfaces. The pad retainer 7 is used to retain two abrasive pads 6 on the outer wall of the polish rod 9.
The worker can fix two sanding patches 6 to the polish rod 9 by means of the patch fixing members 7, the two sanding patches 9 being enclosed on the outer wall of the polish rod 9. The facing fixing piece 7 is located above the first base 1 and the second base 2 and on the outer wall of the polish rod, the two frosted facing 6 are also located on the middle upper part of the first base 1 and the second base 2, and the lower end of the frosted facing 6 extends into the first arc-shaped groove 11 of the first base 1 and the third arc-shaped groove 21 of the second base 2 but does not extend into the second arc-shaped groove 12 and the fourth arc-shaped groove 22, so as to avoid influencing the pre-fixing of the first base 1 and the second base 2. The material of the abrasive facing 6 may be a ground metal sheet.
Alternatively, two sanding pads 6 are hinged at a first side edge, and the second side edges of the two sanding pads 6 are fixedly attached by pad fasteners 7. The first sides of the two sanding pads 6 can be hinged by a pin, and when the sanding pads 6 are installed, the two sanding pads 6 can be opened around the pin and then wound around the outer wall of the polish rod 9, then the two sanding pads 6 can be closed around the pin and then fixed by the pad fixing member 7 at the second side of the sanding pad 6, so that the two sanding pads 6 can be fixed on the outer wall of the polish rod 9.
Alternatively, the diameter of the outer wall of the polish rod 9 may be varied, so that the sanding pads 6 are generally arranged to be slightly wider, so that the diameter of the circle that the two sanding pads 6 can enclose is slightly larger, so that the polish rod 9 can be applied to more sizes, but the width cannot be too large, and the fixed connection between the two sanding pads 6 and the polish rod 9 is affected by the too large width. When the diameter of the outer wall of the polish rod 9 is small, a circle of rubber pad can be arranged on the inner wall of the upper ends of the two frosted linings 6, so that the two frosted linings 6 can be fixed on the polish rod 9 through the lining fixing piece 7, and the polish rod 9 can be protected to a certain extent.
Optionally, the facing fixing member 7 includes a first fixing base 71 and a second fixing base 72, the first fixing base 71 and the second fixing base 72 are respectively fixed on the two frosted facing 6, the first fixing base 71 is hinged with a fixing buckle, the second fixing base 72 is provided with a fixing ring, the fixing buckle is provided with a strip-shaped hole, and the position, the shape and the size of the strip-shaped hole are matched with the fixing ring.
The first attachment base 71 is secured to a second side edge of one of the abrasive facing sheets 6 and the second attachment base 72 is secured to a second side edge of the other abrasive facing sheet 6, with the second side edges of the two abrasive facing sheets being opposite. The fixing buckles on the first fixing base 71 are rotated around the hinge shafts, the strip-shaped holes in the fixing buckles are sleeved on the fixing rings of the second fixing base 72, the fixing rings protrude out of the strip-shaped holes, through holes are formed in the portions, protruding out of the strip-shaped holes, of the fixing rings, workers can penetrate through the through holes of the fixing rings by using bolts or iron wires and the like, the fixing buckles are fixed on the fixing rings, the first fixing base 71 and the second fixing base 72 are fixed together, and the two frosted linings 6 are fixed on the polish rod 9.
The surface of the balls 8 is rough, and the balls 8 are disposed between the adjacent separators 3. The balls 8 may be solid metal spheres and the number may be 6. In a plurality of first slide ways in the first arc-shaped groove 11 of the first base 1, each first slide way is provided with a ball 8, at this time, the ball 8 is positioned between the frosting gasket and the first arc-shaped groove 11, and the ball 8 is fixed in the first arc-shaped groove 11 through the frosting gasket and the first arc-shaped groove 11. In a plurality of second slide ways in the third arc-shaped groove 21 of the second base 2, each second slide way is provided with a ball 8, the ball 8 is positioned between the frosted lining and the third arc-shaped groove 21, and the ball 8 is fixed in the third arc-shaped groove 21 through the frosted lining and the third arc-shaped groove 21.
When the polished rod is installed, after the balls 8 are placed in the first slideway and the second slideway, the polished rod moves downwards relative to the first base 1 and the second base 2, the two frosted linings 6 also move downwards along with the polished rod 9, so that the frosted linings 6 press the balls 8 towards the groove bottoms of the first arc-shaped groove 11 and the third arc-shaped groove 21, half of the balls 8 are tightly abutted between the frosted linings 6 and the groove bottom of the first arc-shaped groove 11, and the other half of the balls 8 are tightly abutted between the frosted linings 6 and the groove bottom of the third arc-shaped groove 21, so that the first base 1 and the second base 2 are fixedly connected with the polished rod 9.
The polish rod clip can be applied to a plurality of scenes in the process of oil exploitation, can be used for adjusting stroke, adjusting level, picking horse head load of the oil pumping unit and the like, and the method for picking horse head load of the oil pumping unit in the embodiment is described as an example, but not limited to this, the polish rod clip in the embodiment is used as an example, and the corresponding process is as follows:
in the process of oil exploitation, a polish rod 9 is hung on a horse head of an oil pumping unit, a Christmas tree device is arranged at a wellhead, and the polish rod 9 penetrates through a packing box on the Christmas tree device and goes deep into a well. For subsequent operations, the polish rod 9 needs to be fixed at the wellhead to reduce the load of the mule head on the pumping unit.
First-preferably, can open two dull polish facing 6 round the round pin axle of two dull polish facing first sides, then wrap up two curved dull polish facing 6 on the outer wall of polished rod 9, close two dull polish facing 6 round the round pin axle of first side, make two dull polish facing 6's second side be right together, then the stationary buckle of first unable adjustment base 71 on the second side of dull polish facing 6, rotatory round the articulated shaft, through the bar hole on the stationary buckle, detain on the solid fixed ring of second unable adjustment base 72, then the staff can use one section iron wire or a bolt to pass solid fixed ring's through-hole, with solid fixed ring and the stationary buckle fixed connection, thereby realized the fixed connection between two dull polish facing 6 and the polished rod 9.
The worker can then pre-fix the first mount 1 and the second mount 2 on the polish rod 9. The first arc-shaped groove 11 and the second arc-shaped groove 12 of the first base 1, and the third arc-shaped groove 21 and the fourth arc-shaped groove 22 of the second base 2 can be wrapped on two sides of the polish rod 9, then the four screws 4 are passed through the through holes at the corresponding positions of the first base 1 and the second base 2, the nuts 5 are screwed at two ends of the four screws 4, so that the first base 1 and the second base 2 are close to each other, the distance between the first base 1 and the second base 2 is reduced, and the nuts 5 are screwed until the second arc-shaped groove 12 of the first base 1 and the fourth arc-shaped groove 22 of the second base 2 fix the first base 1 and the second base 2 on the polish rod 9. It should be noted that the nut 5 does not need to be tightened too much, and the nut 5 is only required to be screwed until the first base 1 and the second base 2 do not fall off the polish rod 9.
The first base 1 and the second base 2 are fixed to the lower portion of the sanding lining 6 so that the sanding lining 6 penetrates into the first arc-shaped groove 11 of the first base 1 and the third arc-shaped groove 21 of the second base 2 but not into the second arc-shaped groove 12 of the first base 1 and the fourth arc-shaped groove 22 of the second base 2.
Then, put into a plurality of first slides that baffle 3 was divided in the first arc wall 11 with ball 8 in proper order, and in a plurality of second slides that baffle 3 was divided in the third arc wall 21, ball 8 in the first arc wall 11 of first base 1 can laminate the tank bottom of dull polish facing 6 and first arc wall 11, is located between the tank bottom of dull polish facing 6 and first arc wall 11, and ball 8 in the third arc wall 21 of second base 2 can laminate the tank bottom of dull polish facing 6 and third arc wall 21, is located between the tank bottom of dull polish facing 6 and third arc wall 21.
The operator can then start the pumping unit and the polished rod 9 gradually moves downwards. When the polish rod 9 moves downward, the two sanding pads 6 fixed to the polish rod by the pad fixing members 7, and the first and second bases 1 and 2 fixed to the polish rod 9 by the screw 4 and the nut 5 move downward together with the polish rod 9. However, when the first base 1 and the second base 2 move to the christmas tree device at the wellhead along with the polish rod 9, the first base 1 and the second base 2 are clamped on the upper surface of the packing box of the christmas tree device and can not move downwards along with the polish rod 9 any more, and the sanding gasket 6 fixed on the polish rod 9 continues to move downwards along with the polish rod 9. The surface of the ball 8 is rough, the surface of the grinding lining 6 is rough, so as to move downwards continuously along with the grinding lining 6, the grinding lining 6 drives the ball 6 to move downwards by grinding friction, the lower parts of the first slideway and the second slideway where the ball 8 is located are gradually narrowed, the first slideway and the second slideway press the ball 8 towards the polish rod 9, the ball 8 presses the grinding lining 6 towards the polish rod 9, the grinding lining presses the polish rod 9, and the ball 8 is provided with a plurality of balls and is arranged around the polish rod 9, so the polish rod 9 is pressed by the grinding lining 6 at various angles around, the polish rod 9 is fixed with the first base 1 and the second base 2, the polish rod 9 stops moving downwards, at the moment, the fixation of the polish rod clip and the polish rod 9 is completed, and the horse head load is removed.
For the installation mode of the polish rod clip, a worker can also install the first base 1 and the second base 2 firstly, then install the two sanding linings 6 and finally place the plurality of balls 8.
For the disassembly of the polish rod clip, a worker can directly screw the nut 5, disassemble the nut 5 and the screw rod 4, disassemble the first base 1 and the second base 2, extrude the polish rod 9 without any ball 8, take away the iron wire or the bolt on the fixing ring on the second fixing base 72, open the fixing buckle on the first fixing base 71, open the facing fixing piece 7, and disassemble the sanding facing 6. At this time, the polish rod 9 is separated from the polish rod clip, and the disassembly is completed.
With the polish rod clip of the present embodiment, the ball 8 can be pressed by the first arc-shaped groove 11 in the first base 1 and the third arc-shaped groove 21 in the second base 2, so that the ball 8 presses the frosted facing 6, and the frosted facing 6 presses the polish rod 9, thereby fixedly connecting the polish rod 9 and the polish rod clip. By adopting the polish rod clip, the abrasion to the polish rod is reduced, the service life of the polish rod is prolonged, and the safety in the oil extraction process is improved.
In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A polish rod clip, comprising a first base (1), a second base (2), a plurality of spacers (3), a screw (4), a nut (5), two frosted pads (6), a pad retainer (7), and a plurality of balls (8), wherein:
the first base (1) is a rectangular block, a first arc-shaped groove (11) and a second arc-shaped groove (12) which are communicated with each other are longitudinally arranged on the side face of the rectangular block, the radius of the arc line corresponding to the first arc-shaped groove (11) in different horizontal cross sections is increased along with the increase of the height of the horizontal cross section, the top end of the first arc-shaped groove (11) is positioned on the top face of the first base (1), the bottom end of the first arc-shaped groove (11) is communicated with the top end of the second arc-shaped groove (12), the bottom end of the second arc-shaped groove (12) is positioned on the bottom face of the first base (1), and the radius of the second arc-shaped groove (12) is matched with the radius of the polished rod (9);
the second base (2) is a rectangular block, a third arc-shaped groove (21) and a fourth arc-shaped groove (22) which are communicated with each other are longitudinally arranged on the side face of the rectangular block, the radius of the arc line corresponding to the third arc-shaped groove (21) in different horizontal cross sections is increased along with the increase of the height of the horizontal cross section, the top end of the third arc-shaped groove (21) is positioned on the top face of the second base (2), the bottom end of the third arc-shaped groove (21) is communicated with the top end of the fourth arc-shaped groove (22), the bottom end of the fourth arc-shaped groove (22) is positioned on the bottom face of the second base (2), and the radius of the fourth arc-shaped groove (22) is matched with the radius of the polished rod (9);
the plurality of partition plates (3) are longitudinally arranged in a first arc-shaped groove (11) of the first base (1) and a third arc-shaped groove (21) of the second base (2), the intersection line of the planes where the plurality of partition plates (3) arranged on the first base (1) are located is the axis of the first arc-shaped groove (11), and the intersection line of the planes where the plurality of partition plates (3) arranged on the second base (2) are located is the axis of the third arc-shaped groove (21);
the first base (1) and the second base (2) are fixedly connected through a screw (4) and a nut (5), a first arc-shaped groove (11) of the first base (1) is opposite to a third arc-shaped groove (21) of the second base (2), and a second arc-shaped groove (12) of the first base (1) is opposite to a fourth arc-shaped groove (22) of the second base (2);
the two frosted linings (6) are arc-shaped sheets and have rough surfaces;
the facing fixing piece (7) is used for fixing the two frosted facing (6) on the outer wall of the polish rod (9);
the surface of the ball (8) is rough, and the ball (8) is arranged between the adjacent partition plates (3).
2. The polish rod clip according to claim 1, wherein two frosted linings (6) are hinged at a first side edge, and a second side edge of the two frosted linings (6) is fixedly connected by a lining retainer (7).
3. The polish rod clip according to claim 2, wherein the lining retainer (7) includes a first retaining base (71) and a second retaining base (72);
the first fixing base (71) and the second fixing base (72) are respectively fixed on the two sanding linings (6);
articulated on first unable adjustment base (71) have fixed the knot, be provided with solid fixed ring on second unable adjustment base (72), be provided with the bar hole on the fixed knot, position, shape and the size and the solid fixed ring phase-match in bar hole.
4. The polish rod clip according to claim 1, wherein the number of the screw rods (4) is 4.
5. The polish rod clip according to claim 1, wherein the number of the spacers (3) provided on the first base (1) is 4, and the number of the spacers (3) provided on the second base (2) is 4.
6. The polish rod clip according to claim 5, wherein the number of balls (8) is 6.
7. The polish rod clip of claim 1, wherein the ball (8) is a solid metal sphere.
8. The polish rod clip according to claim 1, wherein the frosted facing (6) is a frosted metal sheet.
9. The polish rod clip according to claim 1, wherein the first base (1) is provided with a plurality of first through holes parallel to each other, the second base (2) is provided with a plurality of second through holes parallel to each other, each first through hole is coaxial with one second through hole, each screw (4) is provided in one first through hole and one second through hole, and both ends of each screw (4) are provided with nuts (5), respectively.
10. The polish rod clip according to claim 1, wherein each side of the first base (1) and the second base (2) is provided with a rounded corner.
CN202110148332.4A 2021-02-03 2021-02-03 Polish rod clip Active CN112963102B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102037207A (en) * 2008-04-29 2011-04-27 迪特马尔·沙伊德尔 Grip head for an earth boring unit
CN201810234U (en) * 2010-09-30 2011-04-27 中国石油化工股份有限公司 Press device of square clamp
US20110163489A1 (en) * 2008-06-23 2011-07-07 Munoz De Juan Ignacio Gripping and releasing mechanism of blank pipes in a mould for expanding said blank pipes-prior to their molecular orientation
CN204450284U (en) * 2014-12-25 2015-07-08 中国石油天然气股份有限公司 Oil-extractor polish-rod card
CN211201807U (en) * 2019-11-02 2020-08-07 王刚 Drilling device for petroleum drilling
CN211737088U (en) * 2020-03-07 2020-10-23 仲继东 Wellhead sealing cover supporting and clamping device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102037207A (en) * 2008-04-29 2011-04-27 迪特马尔·沙伊德尔 Grip head for an earth boring unit
US20110163489A1 (en) * 2008-06-23 2011-07-07 Munoz De Juan Ignacio Gripping and releasing mechanism of blank pipes in a mould for expanding said blank pipes-prior to their molecular orientation
CN201810234U (en) * 2010-09-30 2011-04-27 中国石油化工股份有限公司 Press device of square clamp
CN204450284U (en) * 2014-12-25 2015-07-08 中国石油天然气股份有限公司 Oil-extractor polish-rod card
CN211201807U (en) * 2019-11-02 2020-08-07 王刚 Drilling device for petroleum drilling
CN211737088U (en) * 2020-03-07 2020-10-23 仲继东 Wellhead sealing cover supporting and clamping device

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