CN201874788U - Direct driving device of screw pump - Google Patents
Direct driving device of screw pump Download PDFInfo
- Publication number
- CN201874788U CN201874788U CN2010206577908U CN201020657790U CN201874788U CN 201874788 U CN201874788 U CN 201874788U CN 2010206577908 U CN2010206577908 U CN 2010206577908U CN 201020657790 U CN201020657790 U CN 201020657790U CN 201874788 U CN201874788 U CN 201874788U
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- China
- Prior art keywords
- sealing
- motor
- mechanical seal
- permanent magnet
- screw pump
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- Expired - Fee Related
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Abstract
The utility model discloses a direct driving device of a screw pump, solving the defect brought by the existing screw pump which adopts a belt for transmission. The device comprises a mechanical sealing device, a permanent magnetic driving motor, an axial loading device and a slip well sealing device, wherein the permanent magnetic driving motor is a permanent magnetic synchronous torque motor; a motor shaft of the permanent magnetic synchronous torque motor is a hollow shaft which is internally sheathed with a central tube and a sucker rod in sequence; the central tube and the sucker rod form a rod column system; the axial loading device is internally provided with a loading bearing and a lubrication pool for lubricating the loading bearing; the slip well sealing device is internally provided with a sealing gate; and the two ends of the sealing gate are jacked tightly by lead screws, so that the sucker rod is fixed at a wellhead. A flat key is arranged on a motor shaft, and is used for transmitting the rotating torque of a motor to the sucker rod of the screw pump, so that the direct driving of the screw pump is realized.
Description
Technical field
The utility model relates to a kind of drive unit of screw pump.
Background technique
In oil recovery field, oil field, screw pump ground lift device is widely adopted in some oil wells, present screw bolt well surface drive is made up of parts such as well head, power motor, retarders, but there are some problems in this device: the one, and this covering device need be adjusted the screw pump rotating speed by changing motor pulley, so the rotating speed of screw pump can not arbitrarily be adjusted; The 2nd, because the use of belt and retarder has increased by about 20% power loss, so energy consumption is big; The 3rd, the maintenance cost of retarder is higher in daily production management; The 4th, when rotating speed is higher, there is potential safety hazard.
Summary of the invention
The purpose of this utility model is at the problem that exists in the background technique, a kind of screw pump direct drive unit is provided, the directly drive screw pump sucker rod running of the power motor of this drive unit, the rotating speed with screw pump can be adjusted arbitrarily, power loss is little, maintenance cost low and safe and reliable characteristics.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of screw pump direct drive unit, be divided into four parts from external structure, concrete is respectively mechanical seal device, permanent magnet drive motor, axial carrying device and slips shut-in well device from top to bottom; Described permanent magnet drive motor is the permanent magnet synchronous torque motor, specifically comprises motor stator and rotor, and what the motor shaft of permanent magnet drive motor adopted is hollow multidiameter shaft, is with the center seal pipe in the core motor axle, and the external diameter of sealing center tube is stepped; Described mechanical seal device comprises mechanical seal price fixing, mechanical seal Moving plate, sealing gland and center tube alignment bearing, wherein the center tube alignment bearing is installed on the center seal pipe that extends out in the permanent magnet drive motor, top sealing compressing tablet, mechanical seal Moving plate and the mechanical seal price fixing installed successively of center tube alignment bearing, the sealing compressing tablet with seal Moving plate and core motor axle) inner wall sealing contact, be provided with flat key on the outer wall of core motor axle, pressure cap by this flat key with each component cover of mechanical seal device inside; Described axial carrying device comprises that two ends are provided with the A body of flange plate, is provided with the lubricated pond of carrier bearing and lubricating bearing bearing in the A body, and the A body is connected with the bolt of lower base of permanent magnet drive motor; Described slips shut-in well device, comprise that two ends are provided with the B body of flange plate, this B body upper end is connected with A body bolt, the lower end is connected with the well head bolt, in described B body, be provided with sealing damper, the involutory back of two sealing dampers is rounded, on sealing damper and the vertical footpath of joint close upwards is being milled with T-slot respectively with two sealing dampers, on the sidewall of B body, be symmetrically welded with cylindrical drum, the nozzle plug of draining the oil that is threaded, the T-slot of sealing damper is connected with leading screw, and the other end of leading screw stretches out the cylinder nozzle.
The beneficial effects of the utility model: the application's screw pump direct drive unit, adopt the permanent magnet synchronous torque motor, the motor shaft of this motor is a hollow shaft, cover center seal pipe in the hollow shaft, cover screw pump sucker rod has been formed a loop bar column system in the center tube, motor shaft is by the gearing of flat key, the rotation torque of motor is delivered on the screw pump sucker rod, has realized the direct driving of screw pump, eliminated the various hidden danger that original screw pump direct drive unit adopts belt transmission to bring.
Description of drawings
Fig. 1 is the half sectional view of the utility model screw pump direct drive unit.
Fig. 2 is the partial enlarged drawing of I part among Fig. 1.
Among the figure: 1-mechanical seal device, 2-permanent magnet drive motor, 3-axial carrying device, 4-slips shut-in well device; 11-mechanical seal price fixing; 12-mechanical seal Moving plate, 13-seals compressing tablet, 14-center tube alignment bearing, the 15-flat key, 16-pressure cap, 21-core motor axle, 22-center seal pipe, 23-motor stator, 24-rotor, the 31-A body, the 32-carrier bearing, 33-lubricates the pond, the 41-B body, 42-sealing damper, the 43-plug of draining the oil, the 44-leading screw.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
By shown in Figure 1, the application's screw pump direct drive unit is divided into four parts from external structure, and concrete is respectively mechanical seal device 1, permanent magnet drive motor 2, axial carrying device 3 and slips shut-in well device 4 from top to bottom; Described permanent magnet drive motor 2 is the permanent magnet synchronous torque motor, comprise motor stator 23 and rotor 24, what the motor shaft of permanent magnet drive motor adopted is hollow multidiameter shaft, be with center seal pipe 22 in the core motor axle 21, the external diameter of sealing center tube 22 is stepped, during work, sucker rod passes sealing center tube 22; By shown in Figure 2, described mechanical seal device 1 comprises mechanical seal price fixing 11, mechanical seal Moving plate 12, sealing gland 13 and center tube alignment bearing 14, described center tube alignment bearing 14 is installed on the center seal pipe 22 that extends out in the permanent magnet drive motor 2, top sealing compressing tablet 13, mechanical seal Moving plate 12 and the mechanical seal price fixing 11 installed successively of center tube alignment bearing 14, sealing compressing tablet 13 contacts with the inner wall sealing of sealing Moving plate 12 and core motor axle 21; Wherein mechanical seal price fixing 11, mechanical seal Moving plate 12 are combined into the sealed compartment of well liquid, prevent that liquid is emerged in the well; Center tube alignment bearing 14 guarantees mechanical seal device 1 at same center, and guarantees sealing effect; On the outer wall of core motor axle 21, be provided with flat key 15, pressure cap 16 by this flat key 15 inside with each component cover of mechanical seal device 1, thereby inner each parts of protection.During actual the use, the core motor axle 21 of permanent magnet drive motor 2 is by the gearing of flat key 15, and the rotation torque of motor is delivered on the screw pump sucker rod, makes it rotation.
Described axial carrying device 3 comprises that two ends are provided with the A body 31 of flange plate, are provided with the lubricated pond 33 of carrier bearing 32 and lubricating bearing bearing 32 in A body 31; Wherein A body 31 is connected with the bolt of lower base of permanent magnet drive motor 2.During actual the use, carrier bearing 32 is by the full well roofbolt weight of core motor axle 21 carryings, and Simmer ring and lubricated pond 33 guarantee the lubricated of carrier bearing 32.
Described slips shut-in well device 4, comprise that two ends are provided with the B body 41 of flange plate, these B body 41 upper ends are connected with axial carrying device 3 bolts, the lower end is connected with the well head bolt, in described B body 41, be provided with two sealing dampers 42, two sealing dampers, 42 involutory backs are rounded, on two sealing dampers 42, and the vertical footpath of joint close upwards is milled with T-slot respectively with two sealing dampers, on the sidewall of B body 41, be symmetrically welded with cylindrical drum, the nozzle plug 43 of draining the oil that has been threaded, the T-slot of sealing damper 42 is connected with leading screw 44, and the other end of leading screw 44 stretches out the cylinder nozzle; By this leading screw 44 of rotation, make two sealing dampers 42 that sucker rod is fixed on well head when construction operation, liquid in the sealed well plays the blowout prevention effect simultaneously.
Claims (1)
1. a screw pump direct drive unit is divided into four parts from external structure, and concrete is respectively mechanical seal device (1), permanent magnet drive motor (2), axial carrying device (3) and slips shut-in well device (4) from top to bottom; It is characterized in that: described permanent magnet drive motor (2) is the permanent magnet synchronous torque motor, specifically comprise motor stator (23) and rotor (24), what the motor shaft of permanent magnet drive motor (2) adopted is hollow multidiameter shaft, be with center seal pipe (22) in the core motor axle (21), the external diameter of sealing center tube (22) is stepped; Described mechanical seal device (1) comprises mechanical seal price fixing (11), mechanical seal Moving plate (12), sealing gland (13) and center tube alignment bearing (14), wherein center tube alignment bearing (14) is installed on the center seal pipe (22) that extends out in the permanent magnet drive motor (2), the top sealing compressing tablet (13) of installing successively of center tube alignment bearing (14), mechanical seal Moving plate (12) and mechanical seal price fixing (11), sealing compressing tablet (13) contacts with the inner wall sealing of sealing Moving plate (12) and core motor axle (21), be provided with flat key (15) on the outer wall of core motor axle (21), pressure cap (16) by this flat key (15) with each component cover of mechanical seal device (1) inside; Described axial carrying device (3), comprise that two ends are provided with the A body (31) of flange plate, be provided with the lubricated pond (33) of carrier bearing (32) and lubricating bearing bearing (32) in A body (31), A body (31) is connected with the bolt of lower base of permanent magnet drive motor (2); Described slips shut-in well device (4), comprise that two ends are provided with the B body (41) of flange plate, this B body (41) upper end is connected with A body (31) bolt, the lower end is connected with the well head bolt, in described B body (41), be provided with sealing damper (42), the involutory back of two sealing dampers (42) is rounded, on sealing damper (42), and the vertical footpath of joint close upwards is being milled with T-slot respectively with two sealing dampers (42), on the sidewall of B body (41), be symmetrically welded with cylindrical drum, the nozzle plug (43) of draining the oil that is threaded, the T-slot of sealing damper (42) is connected with leading screw (44), and the other end of leading screw (44) stretches out the cylinder nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206577908U CN201874788U (en) | 2010-12-14 | 2010-12-14 | Direct driving device of screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206577908U CN201874788U (en) | 2010-12-14 | 2010-12-14 | Direct driving device of screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874788U true CN201874788U (en) | 2011-06-22 |
Family
ID=44162706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206577908U Expired - Fee Related CN201874788U (en) | 2010-12-14 | 2010-12-14 | Direct driving device of screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628842A (en) * | 2013-08-13 | 2014-03-12 | 哈尔滨恒誉名翔科技有限公司 | Oil pumping system of direct drive type permanent-magnet synchronous motor |
-
2010
- 2010-12-14 CN CN2010206577908U patent/CN201874788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628842A (en) * | 2013-08-13 | 2014-03-12 | 哈尔滨恒誉名翔科技有限公司 | Oil pumping system of direct drive type permanent-magnet synchronous motor |
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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: 20110622 Termination date: 20151214 |
|
| EXPY | Termination of patent right or utility model |