CN218669321U - Semi-direct-drive oil pumping unit - Google Patents
Semi-direct-drive oil pumping unit Download PDFInfo
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- CN218669321U CN218669321U CN202223367277.7U CN202223367277U CN218669321U CN 218669321 U CN218669321 U CN 218669321U CN 202223367277 U CN202223367277 U CN 202223367277U CN 218669321 U CN218669321 U CN 218669321U
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- speed reducer
- pumping unit
- stator
- end cover
- bearing
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- 238000005086 pumping Methods 0.000 title claims abstract description 24
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 44
- 230000001360 synchronised effect Effects 0.000 claims abstract description 21
- 210000004907 gland Anatomy 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 9
- 241001023788 Cyttus traversi Species 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application discloses a semi-direct-drive oil pumping unit, which comprises a disc type permanent magnet synchronous motor, wherein the disc type permanent magnet synchronous motor (13) comprises a stator assembly and a rotor (13-2); the stator assembly comprises a stator (13-1) and a shell component; the stator (13-1) and the rotor (13-2) adopt a split structure; the shell assembly is connected with a bearing (10-1) at the input shaft end of the speed reducer to serve as a bearing gland of the speed reducer (10); the problem of the present semi-direct drive beam-pumping unit's disk PMSM and the big degree of difficulty of reduction gear field installation is solved.
Description
Technical Field
The utility model relates to a half directly drives beam-pumping unit in mechanical oil recovery field for there is the pole in oil field to draw and adopt.
Background
The existing semi-direct-drive pumping unit directly drives the speed reducer to operate through the disc type permanent magnet synchronous motor, avoids a belt transmission structure, and has the advantages of high efficiency, energy conservation, periodic replacement of easily damaged parts of a belt and the like. As shown in fig. 1, the adopted disc-type permanent magnet synchronous motor mainly comprises a stator (motor shell), a rotor and a universal shaft coupler, the matching degree of the motor stator and the rotor is high, and the stator and the rotor can not be detached after leaving a factory. The disc type permanent magnet synchronous motor is connected with the speed reducer through the universal shaft coupler, when the connection of the motor and the speed reducer is carried out on site, the universal shaft coupler is firstly installed on an input shaft of the speed reducer, then the integrated stator and rotor are connected with the universal shaft coupler, and the motor is fixed on a barrel body of the oil pumping unit through the bottom angle bolt after the adjustment is finished. In order to ensure that the motor and the input shaft of the speed reducer are concentric, the motor and the input shaft of the speed reducer need to be carefully adjusted and aligned during installation, the work difficulty is high, the labor intensity is high, the operation needs to be finished in the air above 2m above the ground, potential safety hazards of high-altitude operation exist, meanwhile, the motor and the pumping unit are easily loosened due to vibration influence during operation of the whole machine, and the operation reliability of the motor is influenced.
Disclosure of Invention
In view of this, the present disclosure provides a half direct-drive pumping unit, which solves the problem of high difficulty in field installation of a disc type permanent magnet synchronous motor and a speed reducer of the existing half direct-drive pumping unit.
In order to achieve the purpose, the semi-direct-drive oil pumping unit comprises a disc type permanent magnet synchronous motor, wherein the disc type permanent magnet synchronous motor comprises a stator assembly and a rotor;
the stator assembly comprises a stator and a shell component;
the stator is detachably connected with the rotor;
and the shell assembly is connected with a bearing at the input shaft end of the speed reducer to serve as a bearing gland of the speed reducer.
In the embodiment of the disclosure, the rotor is detachably connected with the driving shaft sleeve;
the transmission shaft sleeve is connected with an input shaft of the speed reducer.
In an embodiment of the present disclosure, the housing assembly includes a bearing cover plate connected to the speed reducer using a speed reducer input shaft bearing cover locating hole.
In the embodiment of the disclosure, the housing assembly further comprises a left end cover, a right end cover and a motor end cover plate, the stator is respectively connected with the left end cover and the right end cover, the motor end cover plate is connected with the left end cover, and the bearing cover plate is connected with the right end cover.
In the embodiment of the disclosure, the output shaft of the speed reducer drives the horse head to drive the sucker rod to reciprocate up and down through the crank mechanism and the connecting rod.
The present disclosure has the following beneficial effects:
the shell assembly of the disc type permanent magnet synchronous motor stator assembly of the semi-direct-drive pumping unit is directly embedded into a speed reducer box body by utilizing the positioning hole of the bearing cover of the input shaft of the speed reducer, so that the shell assembly can be used as the bearing cover of the input shaft of the speed reducer, the bearing of the input shaft of the speed reducer can be shared by two motors (the speed reducer and a motor rotor), and the bearing outer ring of the input shaft of the speed reducer can be positioned and sealed in a labyrinth way; simultaneously, for the connected mode that cooperates the direct embedding of casing subassembly reduction gear box, this disclosed stator assembly and rotor design are split type structure, adopt respectively between stator and the rotor and between rotor and the driving shaft sleeve to dismantle connected mode, so need not additionally to adjust the alignment in motor and reduction gear assembling process, under the prerequisite of guaranteeing motor installation accuracy, effectively save assemble duration, reduce motor installation, the adjustment operation degree of difficulty and field work volume.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a connection structure of a disk-type permanent magnet synchronous motor and a speed reducer in the prior art;
FIG. 2 is a schematic structural view of a half-direct-drive pumping unit according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a disc-type permanent magnet synchronous motor according to an embodiment of the disclosure;
fig. 4 is a schematic view of a connection structure of a disc type permanent magnet synchronous motor and a speed reducer according to an embodiment of the disclosure.
Detailed Description
The present disclosure is described below based on examples, but it is worth explaining that the present disclosure is not limited to these examples. In the following detailed description of the present disclosure, some specific details are set forth in detail. However, the present disclosure may be fully understood by those skilled in the art for those parts not described in detail.
Furthermore, those of ordinary skill in the art will appreciate that the drawings are provided solely for the purposes, features, and advantages of the present disclosure, and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".
FIG. 2 is a schematic structural view of a half-direct-drive pumping unit according to an embodiment of the present disclosure; as shown in fig. 2, the half-direct-drive pumping unit comprises a rope hanger 1, a lifting rope 2, a horse head 3, a walking beam 4, a support 5, a cross beam 6, a connecting rod 7, a crank pin device 8, a crank device 9, a speed reducer 10, a brake device 11, a base 12, a disc type permanent magnet synchronous motor 13 and an electric cabinet 14. The general component composition and connection relation of the semi-direct-drive pumping unit disclosed by the disclosure are not substantially different from those of the semi-direct-drive pumping unit described in the background art, and the difference is that the connection structure between the disc type permanent magnet synchronous motor 13 and the speed reducer 10 is improved by the disclosure.
Fig. 3 is a schematic structural diagram of a disc-type permanent magnet synchronous motor according to an embodiment of the disclosure; as shown in fig. 3, the disc-type permanent magnet synchronous motor 13 includes a stator assembly, a rotor 13-2 and a driving shaft sleeve 13-6, wherein the stator assembly includes a stator 13-1 and a housing assembly, the stator 13-1 and the rotor 13-2 adopt a split structure, and the two can be freely separated and independent from each other; the rotor 13-2 is detachably connected with the transmission shaft sleeve 13-6 through a bolt; the shell assembly serves as a protective outer cover of a connecting body of the stator 13-1, the rotor 13-2 and the driving shaft sleeve 13-6.
In fig. 3, a housing assembly according to an embodiment of the present disclosure includes a left end cover 13-5, a right end cover 13-3, a motor end cover 13-7, and a bearing cover 13-4, where the bearing cover 13-4 serves as a bearing cover of the speed reducer 10; wherein, the stator 13-1 is respectively fixedly connected with a left end cover 13-5 and a right end cover 13-3 through screws or bolts, after the transmission shaft sleeve 13-6 is fixedly connected with an input shaft 10-2 of the speed reducer 10, the motor end cover plate 13-7 is fixedly connected with the left end cover 13-5 through screws or bolts; the left end of a bearing cover plate 13-4 is fixedly connected with a right end cover 13-3 through a screw or a bolt, the right end of the bearing cover plate 13-4 is connected with a bearing 10-1 at the input shaft end of the speed reducer through a positioning hole of the bearing cover of the input shaft of the speed reducer and the screw or the bolt, and double-machine sharing of the bearing of the input shaft of the speed reducer is realized, namely the speed reducer 10 and a rotor 13-2 share the bearing 10-1; specifically, as shown in fig. 4, a schematic diagram of a connection structure between a disc type permanent magnet synchronous motor 13 of a direct-drive pumping unit and an input shaft 10-2 of a reducer 10 is shown.
Referring to fig. 4, the shell assembly of the disc-type permanent magnet synchronous motor disclosed by the invention is provided with an embedded bearing cover plate 13-4 connecting structure, the bearing cover plate 13-4 connecting structure replaces a bearing end cover on an original speed reducer, and the shell assembly of the disc-type permanent magnet synchronous motor is directly embedded into a speed reducer box body, so that the shell assembly not only serves as a protective outer cover of a connecting body of a stator 13-1, a rotor 13-2 and a transmission bearing 13-6, but also has the functions of positioning and labyrinth sealing an outer ring of a bearing of an input shaft of the speed reducer.
According to the semi-direct-drive oil pumping unit disclosed by the embodiment, when the disc type permanent magnet synchronous motor and the speed reducer are assembled, the assembly of the stator 13-1 and the shell assembly of the motor is embedded into the speed reducer, the transmission shaft sleeve 13-6 is installed on the input shaft 10-2 of the speed reducer 10 after being fastened by bolts, the rotor 13-2 is installed on the transmission shaft sleeve 13-6, and the motor end cover plate 13-7 is covered to complete all work without extra adjustment and alignment.
The above-mentioned embodiments are merely embodiments for expressing the disclosure, and the description is more specific and detailed, but not construed as limiting the scope of the disclosure. It should be noted that, for those skilled in the art, various changes, substitutions of equivalents, improvements and the like can be made without departing from the spirit of the disclosure, and these are all within the scope of the disclosure. Therefore, the protection scope of the present disclosure should be subject to the appended claims.
Claims (5)
1. The utility model provides a half directly drives beam-pumping unit, includes disk PMSM, its characterized in that:
the disc type permanent magnet synchronous motor (13) comprises a stator assembly and a rotor (13-2);
the stator assembly comprises a stator (13-1) and a shell component;
the stator (13-1) is detachably connected with the rotor (13-2);
the shell assembly is connected with a bearing (10-1) at the input shaft end of the speed reducer to serve as a bearing gland of the speed reducer (10).
2. The semi-direct drive pumping unit of claim 1, wherein:
the rotor (13-2) is detachably connected with the transmission shaft sleeve (13-6);
the transmission shaft sleeve (13-6) is connected with an input shaft (10-2) of the speed reducer (10).
3. The semi-direct drive pumping unit of claim 2, wherein:
the shell assembly comprises a bearing cover plate (13-4), and the bearing cover plate (13-4) is connected with the speed reducer by utilizing a positioning hole of a bearing cover of the input shaft of the speed reducer.
4. The semi-direct drive pumping unit of claim 3, wherein:
the shell assembly further comprises a left end cover (13-5), a right end cover (13-3) and a motor end cover plate (13-7), the stator (13-1) is connected with the left end cover (13-5) and the right end cover (13-3) respectively, the motor end cover plate (13-7) is connected with the left end cover (13-5), and the bearing cover plate (13-4) is connected with the right end cover (13-3).
5. The semi-direct drive pumping unit according to any one of claims 1 to 4, characterized in that:
the output shaft of the speed reducer (10) drives the horse head (3) to drive the sucker rod to reciprocate up and down through a crank mechanism and a connecting rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223367277.7U CN218669321U (en) | 2022-12-15 | 2022-12-15 | Semi-direct-drive oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223367277.7U CN218669321U (en) | 2022-12-15 | 2022-12-15 | Semi-direct-drive oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218669321U true CN218669321U (en) | 2023-03-21 |
Family
ID=85551443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223367277.7U Active CN218669321U (en) | 2022-12-15 | 2022-12-15 | Semi-direct-drive oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218669321U (en) |
-
2022
- 2022-12-15 CN CN202223367277.7U patent/CN218669321U/en active Active
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