CN85203981U - Mud pump for petroleum drilling - Google Patents
Mud pump for petroleum drilling Download PDFInfo
- Publication number
- CN85203981U CN85203981U CN 85203981 CN85203981U CN85203981U CN 85203981 U CN85203981 U CN 85203981U CN 85203981 CN85203981 CN 85203981 CN 85203981 U CN85203981 U CN 85203981U CN 85203981 U CN85203981 U CN 85203981U
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- CN
- China
- Prior art keywords
- mud pump
- slurry pump
- pump
- big
- switching mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a mud pump for petroleum drilling which is a critical device in well drilling in the exploitation of oil. At present, in the mud pump for petroleum drilling at home and abroad, a crank sliding block type switching mechanism is used; the mechanism has the disadvantages of big impact force, high inertia, big power consumption for friction, low operational speed, big volume and big weight. In the utility model, the original switching mechanism is changed to realized that the rotary movement is changed into the reciprocating movement. Therefore, the constant power control stepless variable novel mud pump for petroleum drilling having the advantages of small size, light weight, and high efficiency is realized.
Description
The invention belongs to the supporting machinery equipment that oil drilling is used.
" oil is the blood of industry ", oil plays important effect in modern industry.Petroleum production needs drilling well, and the key equipment of drilling well is a slurry pump.
At present, there be more than 1,000 drilling crew in China, uses the double cylinder double acting slurry pump of imitative Soviet Union the fifties design mostly, and part is used imitative U.S. three cylinder single-acting slurry pump.
The machinery conversion mechanism of imitative beautiful 3NB-1000 type three cylinder single-acting slurry pump becomes to-and-fro motion by the crank block structure with rotation motion and realizes the piston work done, though the volume of the double cylinder double acting slurry pump of the relatively more imitative Soviet Union of 3NB-1000 type slurry pump, effect, working life etc. are improved, but still do not satisfy the requirement of modern new drilling hydraulic parameters.In the process of beating a bite deep-well, often need to change the cylinder sleeve of six kinds of different-diameters; In order to make it to approach permanent power control, also the device that shortens need be installed, shut down the time of repairing with regard to corresponding having increased like this, bit speed is reduced greatly.And, adopt the switching mechanism impact force of crank block big, inertia is big, and friction power loss is big, and running speed is low.3NB-1000 type slurry pump body weight reaches 15 tons more than.
Mud pump for petroleum drilling of the present invention, by improving the switching mechanism design of existing slurry pump, realize improving power, the purpose ， And that reduces volume controls a kind of novel permanent power control stepless variable mud pump for petroleum drilling of realizing permanent power control stepless variable by electro hydraulic valve.
Fig. 1 is the slurry pump structural representation.
As shown in the figure: (0) is the slush pump body. (1) be the slush pump main shaft, power from then on axle passes into. (2) be the push-and-pull dish, it is driven by two parallel oil cylinder rice. (3) be driver plate, itself and main shaft (1) spline joint, when main shaft rotated, it also and then rotated, and driver plate is moving by the push-and-pull dribbling, Can be along the segment distance that moves axially of main shaft. (4) be rolling bearing. (5) be shaking tray, driven by driver plate, can rotate to an angle. (6) be radial spherical roller thrust bearing. (7) be balance, it is supported by center sphere (8), and take the balance center as fulcrum, any point can move left and right on the balance, but balance can not rotational angle. (9) be piston rod, the one head is connected with balance, and the other end is connected with piston (10). (11) be cylinder body, identical cylinder body can have 7.
This switching mechanism is work like this, when the end face of balance is vertical with the spindle axis line, at this moment prime mover drives main axis rotation, main shaft connects the drive dial by spline and rotates, and dial drives shaking tray again and rotates, at this moment, because of balance vertical with the spindle axis line, so during the balance transfixion, piston is also just motionless, pump duty is zero.If the control oil cylinder makes dial when main shaft moves any segment distance backward, shaking tray and balance just form certain angle with spindle centerline.When main shaft and dial rotation, shaking tray is and then rotation also, because the effect of shaking tray end force, balance just centers on the right swing of center sphere carries left, and piston rod drives piston and moves back and forth in cylinder body.The movement locus of seven pistons carries out successively, promptly above left, following moves right, and carries out in turn in week in a garden.When angle increased, promptly the amount of swinging of balance increased, and the corresponding increase of piston stroke is so the flow of pump increases.Because of angle can progressively increase to certain certain value from zero, so the flow of pump also can progressively increase to maximum value from zero.To have realized the mud pump for petroleum drilling of permanent power control stepless variable.
Bit speed is relevant with the slurry pump pump pressure, the pump pressure height, and then speed is fast, and expensive few, cost is low, the economic benefit height, slurry pump pump pressure of the present invention can reach 340 barometric pressure, and rated pump pressure reaches 250 barometric pressure, so discharge capacity is big, and volume is little, and is in light weight, about 5 tons; If separate unit moves, can satisfy the hydraulic parameters needs of high-pressure jet drilling fully, especially with the supporting use of turbodrill, more can realize the technological requirement of high-pressure injection formula drilling well; Can control with computer, realize permanent power control and stepless variable, bore well depth and need not change cylinder sleeve.
Claims (2)
1, a kind of drilling mud pump, the invention is characterized in that this slurry pump adopts by central shaft (1), two pushing dishes (2) that parallel control oil cylinder drives, can move axially the dial (3) of a segment distance along main shaft by main shaft Dai Dong And, drive the shaking tray (5) of rotatable several angle by dial, radial spherical roller thrust bearing (6) is that the balance (7) that fulcrum supports is formed the novel switching mechanism of slurry pump with the center by center sphere (8).
2, according to the described slurry pump of claim 1, it is characterized in that this slurry pump switching mechanism can drive the odd number cylinder body, (9) connection balances of piston rod, the other end connects piston 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85203981 CN85203981U (en) | 1985-09-19 | 1985-09-19 | Mud pump for petroleum drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85203981 CN85203981U (en) | 1985-09-19 | 1985-09-19 | Mud pump for petroleum drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85203981U true CN85203981U (en) | 1986-06-25 |
Family
ID=4799405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85203981 Withdrawn CN85203981U (en) | 1985-09-19 | 1985-09-19 | Mud pump for petroleum drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85203981U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997046804A1 (en) * | 1996-06-06 | 1997-12-11 | Haiwei Zhou | A ram-type mud pump |
| CN102518764A (en) * | 2012-01-04 | 2012-06-27 | 郑州飞机装备有限责任公司 | Composite rotating structure |
| CN107401491A (en) * | 2017-09-24 | 2017-11-28 | 英立（江苏）机电有限公司 | A kind of oil drilling slush pump |
-
1985
- 1985-09-19 CN CN 85203981 patent/CN85203981U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997046804A1 (en) * | 1996-06-06 | 1997-12-11 | Haiwei Zhou | A ram-type mud pump |
| CN1066520C (en) * | 1996-06-06 | 2001-05-30 | 周海威 | Straight shaft plunger mud pump |
| CN102518764A (en) * | 2012-01-04 | 2012-06-27 | 郑州飞机装备有限责任公司 | Composite rotating structure |
| CN107401491A (en) * | 2017-09-24 | 2017-11-28 | 英立（江苏）机电有限公司 | A kind of oil drilling slush pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB04 | Change of attorney information |
Agency after: Luoyang Patent Agency Agency before: Patent Agency Service Department of Luoyang |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: AGENCY; FROM: LUOYANG CITY TO: LUOYANG CITY PATENT OFFICE |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |