CN107165817B

CN107165817B - A kind of mud piston

Info

Publication number: CN107165817B
Application number: CN201710536360.7A
Authority: CN
Inventors: 王玉刚
Original assignee: Yancheng Dongrong Petroleum Machinery Co Ltd
Current assignee: Yancheng Dongrong Petroleum Machinery Co Ltd
Priority date: 2017-07-04
Filing date: 2017-07-04
Publication date: 2018-10-09
Anticipated expiration: 2037-07-04
Also published as: CN107165817A

Abstract

The present invention relates to a kind of mud pistons, including piston, conversion block, sealing strip and connection component；Connection component includes connecting shaft, retainer ring and sleeve；The piston of the present invention and the tie point of piston brace rod can be adjusted so that the movement initial position of piston can be converted, and to finally play the effect for adjusting plasma discharge amount, realize the adjustable function of slush pump plasma discharge amount；And easy to operate, convenient formation, applied widely, universal strong, save equipment purchase expenditure.

Description

A kind of mud piston

Technical field

The present invention relates to a kind of mud pistons.

Background technology

Piston is the important accessory of drilling mud pump, and slush pump provides well-flushing power for drilling well, during slush pump use, Mud can be exported and be returned, the effect of the quiet and cooling drill bit of the row of realization；The plasma discharge amount of current slush pump immobilizes, Wu Fajin Row conversion is adjusted, and the scope of application is small, and different use occasions needs to prepare the slush pump of different plasma discharge amounts, and equipment is caused to waste, It needs further improvement.

Invention content

In view of the above-mentioned state of the art, technical problem to be solved by the present invention lies in provide a kind of to make piston Movement initial position is converted, and to play the effect for adjusting plasma discharge amount, realizes the adjustable function of slush pump plasma discharge amount, and Easy to operate, easily manufactured, applied widely, universal strong saves the mud piston of equipment purchase expenditure.

Technical solution is used by the present invention solves above-mentioned technical problem：A kind of mud piston, including piston, conversion Block, sealing strip and connection component, which is characterized in that the connection component includes connecting shaft, retainer ring and sleeve, and the one of the piston End end face center inwardly forms connecting cavity；Inwardly there are two symmetrical gears for molding on the opening inner wall of the connecting cavity Side；There are two symmetrical planar portions, the outer middle side part of described two planar portions is equal for molding in the outer circumference of the piston There are one the rectangular boss being symmetrically distributed, the medial plane middle part of described two rectangular boss to offer one for molding outward A waist-shaped hole being symmetrically distributed, described two waist-shaped holes are interconnected with connecting cavity；The both sides of described two waist-shaped holes Circular arc inner wall center opens up that there are one the threaded holes that are symmetrically distributed；The conversion block is embedded from outside to inside to be fixed to waist type The side in hole；The connecting shaft is connected in the connecting cavity of piston.

Preferably, the both ends of the conversion block are separately formed the first semi circular surface and the second semicircle being mutually distributed in the same direction The radius of face, first semi circular surface and the second semi circular surface is identical；The circle of the radius and waist-shaped hole both sides of second semi circular surface The radius of arc inner wall matches.

Preferably, the outer surface center of first semi circular surface offers counterbore, and the bottom center of the counterbore opens up There are through-hole, the through-hole to intersect and run through with the second semi circular surface.

Preferably, second semi circular surface and the circular arc inner wall of waist-shaped hole side are bonded to each other, first semi circular surface with The circular arc inner wall of the waist-shaped hole other side forms a complete circular mounting hole.

Preferably, the outer circumference side both ends of the connecting shaft open up that there are one the circumferential rectangles that are symmetrically distributed One end end face center of slot, the connecting shaft offers through hole, and the both ends of the connecting shaft are respectively inserted into two round peaces It fills in hole, the retainer ring is respectively clamped into circumferential rectangular channel.

Preferably, sleeve is also arranged on the outer circumference face of the connecting shaft, the sleeve is located at the connecting cavity of piston Inside, the sleeve can be rotated centered on connecting shaft outside connecting shaft, in the outer circumference Middle face of the sleeve offers Threaded hole.

Preferably, four symmetrical circumferential half slots two-by-two, institute are further opened on the outer circumference face of the piston It states in each circumferential half slot and is embedded in sealing strip there are one fixations.

Preferably, the other end end face outside center of the piston forms connecting seat, the outside of the connecting seat outward End face center offers threaded connection hole；The other end end face outside of the piston is further opened with two symmetrical releases Hole.

Preferably, there are one flange, the both ends of the flange for molding on the outside of the inner opening end of described two waist-shaped holes There are one reinforcement blocks for molding outward on outer surface.

Compared with the prior art, the advantages of the present invention are as follows：Slush pump is the necessary equipment of drilling process, and slush pump is to bore Well provides well-flushing power, by being returned on mud, the effect of the quiet and cooling drill bit of the row of realization；The plasma discharge amount of current slush pump is fixed It is constant, conversion adjusting can not be carried out, the scope of application is small, and different use occasions needs to prepare the slush pump of different plasma discharge amounts, makes Forming apparatus wastes；The piston of the present invention and the tie point of piston brace rod can be adjusted so that the movement initial position of piston It can be converted, to finally play the effect for adjusting plasma discharge amount, realize the adjustable function of slush pump plasma discharge amount；And operation letter Single, easily manufactured, applied widely, universal strong saves equipment purchase expenditure.

Description of the drawings

Fig. 1 is the overall construction drawing after present invention assembly；

Fig. 2 is the structure chart inside the drive cavity of the present invention；

Fig. 3 is the structure chart inside the piston storehouse of the present invention；

Fig. 4 is the structure chart of the piston and connection component of the present invention；

Fig. 5 is the structure chart of the internal piston of the present invention；

Fig. 6 is the structure chart of the connection component of the present invention.

Specific implementation mode

As shown in figs. 1 to 6, a kind of mud piston, including piston 19, conversion block 20, sealing strip 21 and connection component；Even Connected components include connecting shaft 22, retainer ring 24 and sleeve 23, and the rear end of piston storehouse 1 is connected with plasma discharge mechanism 6, after plasma discharge mechanism 6 Side side is installed with plasma discharge tube socket 7, and pipeline is connected on plasma discharge tube socket 7, and the top of plasma discharge mechanism 6 is installed with Pneumatic adjusting mechanism 25；The top front end of piston storehouse 1 offers drive cavity 101, is fixed with protective cover 2 on the outside of the opening of drive cavity 101, it is convenient into Row maintenance and filling engine oil and play good protective effect；It is respectively fixed with two on the left and right sides inner wall of drive cavity 101 A symmetrical first bearing 8 and two symmetrical second bearings 10 are inserted between two first bearings 8 and are connected with the One shaft 9 is inserted between two second bearings 10 and is connected with the second shaft 11, and the outer middle side part of first rotating shaft 9, which is arranged, to be fixed with Drive disk 17, is arranged that be fixed with the first driven helical teeth wheel disc 14 and second dynamic from helical teeth wheel disc on the outer circumference face of drive disk 17 15, the tooth form angle of inclination on 14 and second driven helical teeth wheel disc 15 of the first driven helical teeth wheel disc is symmetrical；Drive disk 17 Molding is spaced 180 degree there are one eccentric terminal pad 171 between two eccentric terminal pads 171 outward on both sides of the face；Two partially Be arranged on the outer circumference face of heart terminal pad 171 it is fixed there are one piston brace rod 16, the other end of piston brace rod 16 at Type has connecting rod 161, the other end of connecting rod 161 to be connected with piston 19 by connection component, and two pistons 19 are respectively embedded into connection In plunger shaft 102 inside piston storehouse 1, plunger shaft 102 is located at the rear side of drive cavity 101 and is interconnected with drive cavity 101； The back-end central of piston 19 is connected with pull rod 4, and the other end of pull rod 4 is connected with transmission mechanism 5, and plasma discharge mechanism 6 is internally provided with The other end of movable rows slurry, transmission mechanism 5 is connected with movable rows slurry；It is also spirally connected on the outside of pull rod 4 and the connecting pin of piston 19 There is nut 18, plays locking effect；The outer circumference Middle face of second shaft 11, which is arranged, is fixed with the first active oblique gear Disk 12 and the second active oblique gear disk 13, the tooth form inclination angle on the first active oblique gear disk 12 and the second active oblique gear disk 13 Degree is symmetrical, and the first active oblique gear disk 12 and the first driven intermeshing of helical teeth wheel disc 14 connect, the second active helical teeth Wheel disc 13 and the second driven intermeshing of helical teeth wheel disc 15 connect；It is also arranged on the outside of one end of second shaft 11 and is fixed with belt wheel 3, Belt wheel 3 is located at the outside of piston storehouse 1, and belt wheel 3 is connected by belt with external drive mechanism, and external drive mechanism can band movable belt pulley The rotation of 3 rotations, belt wheel 3 can drive the second shaft 11 to rotate in turn, and the rotation of the second shaft 11 can drive the first driven helical teeth Wheel disc 14 and the second driven helical teeth wheel disc 15 rotate, to drive drive disk 17 to rotate, finally so that two piston brace rods 16 Replace swing successively, two piston brace rods 16 replace swing two pistons 19 can be driven respectively at two successively It is moved forward and backward in plunger shaft 102；One end end face center of piston 19 inwardly forms connecting cavity 1913；The outer circumference of piston 19 There are two symmetrical planar portions 191 for upper molding, and there are one mutually right for molding outward for the outer middle side part of two planar portions 191 Claim the rectangular boss 192 of distribution, opens up that there are one the waists being symmetrically distributed in the middle part of the medial plane of two rectangular boss 192 Type hole 193, two waist-shaped holes 193 are interconnected with connecting cavity 1913；The both sides circular arc inner wall center of two waist-shaped holes 193 is equal The threaded hole 194 being symmetrically distributed there are one opening up；The both ends of conversion block 20 are separately formed first be mutually distributed in the same direction Semi circular surface 201 and the second semi circular surface 204, the first semi circular surface 201 are identical with the radius of the second semi circular surface 204；Second semi circular surface 204 Radius matched with the radius of the circular arc inner wall of 193 both sides of waist-shaped hole；The outer surface center of first semi circular surface 201 offers The bottom center of counterbore 202, counterbore 202 offers through-hole 203, and through-hole 203 intersects and runs through with the second semi circular surface 204；It will turn The side that block 20 is embedded into waist-shaped hole 193 from outside to inside is changed, and makes the circular arc of the second semi circular surface 204 and 193 side of waist-shaped hole Inner wall is bonded to each other, and is then sequentially passed through counterbore 202 and through-hole 203 from outside to inside using mating screw, is finally screwed into waist In the threaded hole 194 of 193 side of type hole, to which conversion block 20 to be fixed on to the side in waist-shaped hole 193 so that the first semi circular surface 201 form a complete circular mounting hole with the circular arc inner wall of 193 other side of waist-shaped hole；The outer circumference side of connecting shaft 22 Both ends are opened up there are one the circumferential rectangular channel 221 being symmetrically distributed, and one end end face center of connecting shaft 22, which offers, to be run through The both ends in hole 222, connecting shaft 22 are respectively inserted into two circular mounting holes, and two retainer rings 24 are respectively clamped into two rings Into rectangular channel 221, to which connecting shaft 22 to be connected in the connecting cavity 1913 of piston 19, and connecting shaft 22 is prevented to be detached from piston 19；Sleeve 23 is also arranged on the outer circumference face of connecting shaft 22, sleeve 23 is located inside the connecting cavity 1913 of piston 19, sleeve 23 can be rotated centered on connecting shaft 22 outside connecting shaft 22, and the outer circumference Middle face of sleeve 23 offers internal thread hole 231, Sleeve 23 can be connected with the other end of connecting rod 161 using mating Top fastening screw, thus by piston brace rod 16 and sleeve 23 are fixed together；Four symmetrical circumferential half slots 199 two-by-two are further opened on the outer circumference face of piston 19, each It is embedded in sealing strip 21 there are one fixing in circumferential half slot 199, plays good sealing function；Outside the other end of piston 19 Side end face center forms connecting seat 195 outward, and the end face outside center of connecting seat 195 offers threaded connection hole 196, screw thread Pull rod 4 is bolted in connecting hole 196, to which piston 19 be connected with transmission mechanism 5；The other end end face outside of piston 19 is also opened If there are two symmetrical pressure relief vents 198；There are one flange for molding on the outside of the inner opening end of two waist-shaped holes 193 1910, play the role of reinforcing, while can guarantee the slow-roll stabilization degree of connecting shaft 22, make it that circular runout not occur, reduces Shake and noise；There are one reinforcement blocks 1911 for molding outward on the both ends outer surface of flange 1910, enhance flange The tension and compression strength at 1910 both ends, extend service life；Two are inwardly formed on the opening inner wall of connecting cavity 1913 A symmetrical rib 1912；When needing to increase the plasma discharge amount inside plasma discharge mechanism 6, first retainer ring 24 can be taken out, so Connecting shaft 22 is removed afterwards, then conversion block 20 is disassembled, and is then attached at the other side of waist-shaped hole 193, later, will be connected Axis 22 reinstalls and is fixed to one end of the script fixed conversion block 20 of waist-shaped hole 193, finally again by 24 clamping fixed of retainer ring, in this way The movement initial position of piston 19 is just moved backward into a distance, and then by the movement of piston brace rod 16 and transmission mechanism 5 Initial position also moves backward a distance, it is final so that the movement initial position of movable rows slurry also move backward one section away from From；And the movement of pull back and forth of movable rows slurry can make mud by plasma discharge tube socket 7 and is discharged to the outside via pipeline；Activity The movement initial position of plasma discharge body, which moves backward a distance, can have the function that expand plasma discharge chamber, realize the increasing of plasma discharge amount Add.

Slush pump is the necessary equipment of drilling process, and slush pump provides well-flushing power for drilling well, by being returned on mud, is realized Arrange the effect of quiet and cooling drill bit；The plasma discharge amount of current slush pump immobilizes, and can not carry out conversion adjusting, the scope of application Small, different use occasions needs to prepare the slush pump of different plasma discharge amounts, and equipment is caused to waste；The piston 19 and piston of the present invention The tie point of connecting rod 16 can be adjusted so that the movement initial position of piston 19 can be converted, and be adjusted to finally play The effect for saving plasma discharge amount, realizes the adjustable function of slush pump plasma discharge amount；And it is easy to operate, it is easily manufactured, it is applied widely, lead to It is strong with type, save equipment purchase expenditure.

Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of skill in the art that it still can be right Technical solution recorded in foregoing embodiments is modified, or is replaced on an equal basis to which part technical characteristic；And this A little modification or replacements, the spirit and model of various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims

1. a kind of mud piston, including piston, conversion block, sealing strip and connection component, which is characterized in that the connection component Including connecting shaft, retainer ring and sleeve, one end end face center of the piston inwardly forms connecting cavity；The opening of the connecting cavity Inwardly there are two symmetrical ribs for molding on place's inner wall；There are two symmetrical for molding in the outer circumference of the piston Planar portions, molding is there are one the rectangular boss being symmetrically distributed outward for the outer middle side parts of described two planar portions, and described two Opened up in the middle part of the medial plane of a rectangular boss there are one the waist-shaped hole being symmetrically distributed, described two waist-shaped holes with even Chamber is connect to be interconnected；The both sides circular arc inner wall center of described two waist-shaped holes opens up that there are one the screw threads that are symmetrically distributed Hole；The conversion block is embedded in the side fixed to waist-shaped hole from outside to inside；The connecting shaft is connected in the connecting cavity of piston.

2. a kind of mud piston according to claim 1, which is characterized in that the both ends of the conversion block have been separately formed The radius of the first semi circular surface and the second semi circular surface being mutually distributed in the same direction, first semi circular surface and the second semi circular surface is identical；Institute The radius for stating the radius of the second semi circular surface and the circular arc inner wall of waist-shaped hole both sides matches.

3. a kind of mud piston according to claim 2, which is characterized in that in the outer surface of first semi circular surface The heart offers counterbore, and the bottom center of the counterbore offers through-hole, and the through-hole intersects and runs through with the second semi circular surface.

4. a kind of mud piston according to claim 2, which is characterized in that second semi circular surface and waist-shaped hole side Circular arc inner wall be bonded to each other, the circular arc inner wall of first semi circular surface and the waist-shaped hole other side forms one and complete round pacifies Fill hole.

5. a kind of mud piston according to claim 1, which is characterized in that the outer circumference side two of the connecting shaft End is opened up there are one the circumferential rectangular channel being symmetrically distributed, and one end end face center of the connecting shaft offers through hole, The both ends of the connecting shaft are respectively inserted into two circular mounting holes, and the retainer ring is respectively clamped into circumferential rectangular channel.

6. a kind of mud piston according to claim 1, which is characterized in that on the outer circumference face of the connecting shaft also It is arranged with sleeve, the sleeve is located inside the connecting cavity of piston, and the sleeve can be centered on connecting shaft in connecting shaft outward turning Turn, the outer circumference Middle face of the sleeve offers internal thread hole.

7. a kind of mud piston according to claim 1, which is characterized in that also opened on the outer circumference face of the piston Equipped with four symmetrical circumferential half slots two-by-two, embedded in the circumferential direction half slot fixed there are one sealing strips.

8. a kind of mud piston according to claim 1, which is characterized in that in the other end end face outside of the piston The heart forms connecting seat outward, and the end face outside center of the connecting seat offers threaded connection hole；The other end of the piston End face outside is further opened with two symmetrical pressure relief vents.

9. a kind of mud piston according to claim 1, which is characterized in that the inner opening end of described two waist-shaped holes Outside is molded there are one flange, and there are one reinforcement blocks for molding outward on the both ends outer surface of the flange.