CN2934657Y - Combined type sealed single screw oil pump ground drive device - Google Patents
Combined type sealed single screw oil pump ground drive device Download PDFInfo
- Publication number
- CN2934657Y CN2934657Y CN 200620114851 CN200620114851U CN2934657Y CN 2934657 Y CN2934657 Y CN 2934657Y CN 200620114851 CN200620114851 CN 200620114851 CN 200620114851 U CN200620114851 U CN 200620114851U CN 2934657 Y CN2934657 Y CN 2934657Y
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- China
- Prior art keywords
- equipment
- mechanical seal
- speed reducer
- single screw
- sealing
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- Expired - Fee Related
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Abstract
A ground drive equipment of the combined sealed single screw oil pump. The invention aims to solve the problems that the polished rod seal of the existing ground drive equipment of screw pump leaks and is with short use time; the ratchet wheel and pawl type anti-reversing equipment does not have guard and with low security. The motor (23) of the equipment is provided on a well plugging device (19); a reduction gear box (21) is directly connected with the well plugging device (19) and transmits the motor drive force via a belt (20); a sealing box (24) is connected with the reduction gear box (21) via the thread. The product combines the well plugging device and a drive head, thus reducing the height of the unit, can realize the functions of both the well plugging device and the drive head, and not affecting each other; the combined sealing box adopts the double mechanically sealed sealing structure of the polished rod, so the combined sealing box can effectively solve the problem that the polished rod seal of the existing equipment leaks the crude oil and can prolong the sealing time; the static safety shield envelops the ratchet wheel and the pawl which rotate on the anti-reversing equipment of the reduction gear box, so the safety shield can improve the using safety performance of the equipment.
Description
Technical field:
The utility model relates to a kind of mechanical oil recovery equip ment in the oil recovery field, oil field, particularly a kind of combination seal formula single screw pump surface drive.
Background technique:
At present, in the single screw pump surface drive of oil field, the method for sealing polished rod roughly has three kinds: the one, use packing_seal, and the 2nd, use single-stage mechanical seal, the 3rd, the combination seal of packing_seal and mechanical seal.The sealing effect of packing_seal is bad, needs often to change; The good sealing effect of single-stage mechanical seal, but the life-span only can guarantee about 1 year.The combination seal of packing_seal and mechanical seal is just kept working state after the seal failure of single-stage machinery with packing_seal.In addition, be applied at present in the surface drive of screw bolt well at scene, oil field, aspect the safety protection of anti-reverse mechanism, be divided into two-part: a part is not installed protection, and potential safety hazard is higher; Another part has been installed the protective housing that rotates with belt pulley, because protective housing is also in rotation, so also there is potential safety hazard.
The model utility content:
In order to solve the deficiency in the background technique, the utility model provides a kind of double mechanical seal combination seal formula driving unit on screw pump, and this product can solve the leakage of oil problem of existing apparatus, and can prolong the sealing time, can also improve the usage safety performance of device simultaneously.
The technical solution of the utility model is: this a kind of combination seal formula single screw pump surface drive comprises blowout preventer, belt, speed reducer, belt housing, motor, sealing case are formed, motor mounting is on blowout preventer, speed reducer directly is connected with blowout preventer, transmit motor power by belt, sealing case is connected with speed reducer by screw thread.
Above-mentioned device also comprises can, bearing box and the stuffing box gland of sealing case, outer mechanical seal and the rotating ring support of being with successively in stuffing box gland upper end in the can, stuffing box gland in the rotating ring support is with down mechanical seal outward, the rotating ring support is positioned at the upper-end surface of bearing box, and the interior ring cavity of rotating ring support is equipped with lubricating grease; Under reaching, last mechanical seal is with round nut on the upper-end surface stuffing box gland of mechanical seal; Ratchet is covered with guard shield on the speed reducer, and guard shield is fixed on the speed reducer housing, and ratchet is by static shield encompasses on the ratchet.
The utlity model has following beneficial effect: the utility model has reduced the setting height(from bottom) of oil recovery ground installation, reduces the vibration of unit, has protected sleeve pipe.This device adopts the sealing of two-stage combined machine to replace original polished rod seal mode, first order mechanical seal utilizes well liquid to make oiling agent, second level mechanical seal is lubricated with lubricating grease or oil, the friction pair of two-stage mechanical seal all is under the liquid lubrication condition works, the mechanical seal of lower end is complete and well liquid is isolated, and the lubricant oil sufficient lubrication is arranged.After last mechanical seal was lost efficacy, following mechanical seal worked on.Adopt two-stage different lubricating way mechanical seal combination, strengthened sealing effect, prolong the sealing time more than one times.On bearing box below the mechanical seal, have the draining hole of oblique lower direction, be convenient to find fault and keep in repair.In addition,, in the unit start and stop, keep state of rest, strengthened the Security that equipment uses at protective housing that is fixed on the speed reducer housing of the outside installation of ratchet.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is structure sectional views of the present utility model.
1-speed reducer housing among the figure, 2-stuffing box gland, 3-main shaft, 4-bearing box, the 5-seal ring, 6-bearing, 7-rotating ring support, mechanical seal under the 8-, the 9-round nut, the last mechanical seal of 10-, 11-can, 12-static seal, the 13-ratchet, 14-guard shield, 15-ratchet, 16-belt pulley, 17-tapered sleeve dish, 18-lubricating grease, 19-blowout preventer, 20-belt, the 21-speed reducer, 22-belt housing, 23-motor, 24-sealing case.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing: as Fig. 1 in conjunction with shown in Figure 2, this combination seal formula single screw pump surface drive comprises blowout preventer 19, belt 20, speed reducer 21, belt housing 22, motor 23, sealing case 24 are formed, motor 23 is installed on the blowout preventer 19, speed reducer 21 directly is connected with blowout preventer 19, transmit motor power by belt 20, sealing case 24 is connected with speed reducer 21 by screw thread.Speed reducer housing 1 lower end surface is connected with stuffing box gland 2, stuffing box gland 2 extends to sealing case 24 by the center hole of main shaft 3, sealing case 24 and main shaft 3 are by being threaded, main shaft 3 upper ends are built-in with seal ring 5, and sealing case 24 is made up of bearing box 4, bearing 6, rotating ring support 7, mechanical seal 8 down, round nut 9, upward mechanical seal 10, can 11 and static seal 12.
Be with mechanical seal 10 and rotating ring support 7 successively outside stuffing box gland 2 upper ends in the can 11 of the sealing case 24 in the said apparatus, be with down mechanical seal 8 outside the stuffing box gland 2 in the rotating ring support 7, rotating ring support 7 is positioned at the upper-end surface of bearing box 4, and the interior ring cavity of rotating ring support 7 is equipped with lubricating grease 18.Be with round nut 9 on the upper-end surface stuffing box gland 2 of last mechanical seal 10 and mechanical seal 8 down.
In practical work process, drive unit passes through polished rod, sucker rod drives subsurface progressive cavity, polished rod passes drive unit, by the sealing of static seal 12 realizations with sealing case 24, and motive sealing is by mechanical seal 8 down, last mechanical seal 10 realizes, well liquid arrives upward mechanical seal 10 by the annular space of polished rod and stuffing box gland 2, sealing surface sealed well liquid by mechanical seal, owing to be full of lubricating grease, lubricating grease is in the lower end, have only under the situation of lubricating grease full consumption, well liquid just contacts with sealing, and mechanical seal still can be used considerable time, after last mechanical seal 10 was lost efficacy, well liquid enters down mechanical seal 8 chambeies, by mechanical seal 8 realization sealings down, reaches rated wear.By the Leak hole of can 11, in time change when finding seal leakage and the servicing machine sealing.In the bearing box 4 in the sealing case 24 bearing 6 is housed, the location and the running accuracy of sealing case have been guaranteed, rotating ring support 7 be the rotating ring support of going up mechanical seal 10 be again the can of mechanical seal 8 down, upper and lower mechanical seal (10,8) all has round nut 9 reliably to locate.
During the drive unit proper functioning, ratchet 15 is installed on the tapered sleeve dish 17, rotates with belt pulley 16, and when shutting down the release counter-rotating, ratchet 15 drives ratchets 13 high speed reverse rotation.Hurt sb.'s feelings for preventing that ratchet 15 from turning round, adopt guard shield 14 to surround, guard shield 14 is installed on the speed reducer housing 1.
Claims (4)
1, a kind of combination seal formula single screw pump surface drive, comprise blowout preventer (19), belt (20), speed reducer (21), belt housing (22), motor (23), sealing case (24) are formed, it is characterized in that: motor (23) is installed on the blowout preventer (19), speed reducer (21) directly is connected with blowout preventer (19), transmit motor power by belt (20), sealing case (24) is connected with speed reducer (21) by screw thread.
2, combination seal formula single screw pump surface drive according to claim 1, the can (11), bearing box (4) and the stuffing box gland (2) that also comprise sealing case (24), it is characterized in that: outer mechanical seal (10) and the rotating ring support (7) of being with successively in stuffing box gland (2) upper end in the can (11), be with down mechanical seal (8) outside the stuffing box gland (2) in the rotating ring support (7), rotating ring support (7) is positioned at the upper-end surface of bearing box (4), and the interior ring cavity of rotating ring support (7) is equipped with lubricating grease (18).
3, combination seal formula single screw pump surface drive according to claim 2 is characterized in that: upward be with round nut (9) on the upper-end surface stuffing box gland (2) of mechanical seal (10) and mechanical seal (8) down.
4, combination seal formula single screw pump surface drive according to claim 3, it is characterized in that: speed reducer (21) is gone up ratchet (13) and is covered with guard shield (14), guard shield (14) is fixed on the speed reducer housing (1), and ratchet (13) is gone up ratchet (15) and surrounded by static guard shield (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620114851 CN2934657Y (en) | 2006-06-26 | 2006-06-26 | Combined type sealed single screw oil pump ground drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620114851 CN2934657Y (en) | 2006-06-26 | 2006-06-26 | Combined type sealed single screw oil pump ground drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2934657Y true CN2934657Y (en) | 2007-08-15 |
Family
ID=38351346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620114851 Expired - Fee Related CN2934657Y (en) | 2006-06-26 | 2006-06-26 | Combined type sealed single screw oil pump ground drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2934657Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041978A (en) * | 2009-10-12 | 2011-05-04 | 张学鲁 | Rod hiding type oil pumping unit |
-
2006
- 2006-06-26 CN CN 200620114851 patent/CN2934657Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041978A (en) * | 2009-10-12 | 2011-05-04 | 张学鲁 | Rod hiding type oil pumping unit |
| CN102041978B (en) * | 2009-10-12 | 2013-12-18 | 张学鲁 | Rod hiding type oil pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |