CN217602914U - High-stability type driving lifting device suitable for all-metal conical screw pump - Google Patents
High-stability type driving lifting device suitable for all-metal conical screw pump Download PDFInfo
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- CN217602914U CN217602914U CN202220983413.6U CN202220983413U CN217602914U CN 217602914 U CN217602914 U CN 217602914U CN 202220983413 U CN202220983413 U CN 202220983413U CN 217602914 U CN217602914 U CN 217602914U
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Abstract
The utility model provides a high stability type drive hoisting device suitable for all-metal conical screw pump has solved the technical problem that current drive hoisting device poor stability and control range are limited. The high-stability type driving lifting device comprises a direct-drive synchronous motor, a transmission sleeve, an end cover, a limiting piece and a lifting driving unit; the method is characterized in that: the device also comprises an internal thread sleeve and an external thread sleeve; the upper end of the transmission sleeve extends into the sleeve part and can slide up and down along the sleeve part, and the lower end of the transmission sleeve is supported on the internal thread sleeve; the internal thread sleeve is matched with the transmission sleeve through a first bearing and a second bearing; the external thread sleeve penetrates through the internal thread sleeve and then extends into the transmission sleeve, and the external thread sleeve is in thread fit with the internal thread sleeve and is matched with the sucker rod through a third bearing; the end cover is fixed at the upper end of the transmission sleeve, and the limiting piece is fixed with the sucker rod and is in key connection with the end cover; the sucker rod sequentially penetrates through the end cover and the external thread sleeve; the lifting driving unit is in transmission fit with the external thread sleeve.
Description
Technical Field
The utility model relates to an all-metal conical screw pump technical field, concretely relates to high stability type drive hoisting device suitable for all-metal conical screw pump.
Background
My patent CN201921471526.2 discloses a novel driving and lifting device suitable for an all-metal tapered screw pump, and the patent technology finds the following technical problems in the practical application process: the first bearing and the second bearing are arranged in a connecting piece, the connecting piece is arranged at the upper end of the male transmission sleeve extending out of the direct-drive synchronous motor, namely the connecting piece is positioned at the upper part of the direct-drive synchronous motor, and although the connecting piece is convenient for daily maintenance (such as oiling and lubrication) and replacement, the first bearing, the second bearing and the connecting piece can increase the gravity at the top end of the sucker rod and influence the stability of the sucker rod during high-speed operation, and particularly after the sucker rod is adjusted and lifted, the sucker rod shakes, and the stability is reduced particularly remarkably; secondly, after the installation height of the direct-drive synchronous motor is fixed, the length of the screw rod sleeve and the length of the screw rod part (external thread part) of the screw rod sleeve are limited, the lifting range of the sucker rod is directly related to the screw rod part, and the lifting range of the lifting device is limited.
Therefore, a high-stability type driving lifting device suitable for the all-metal conical screw pump is provided.
Disclosure of Invention
The utility model provides a not enough to prior art, the utility model provides a high stable form drive hoisting device suitable for all-metal conical screw pump has overcome the not enough of prior art, reasonable in design, and compact structure has solved the current poor stability of drive hoisting device and the limited technical problem of control range.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a high-stability type driving lifting device suitable for an all-metal conical screw pump comprises a direct-drive synchronous motor, a transmission sleeve, an end cover, a limiting piece and a lifting driving unit;
the method is characterized in that:
the lifting device also comprises an internal thread sleeve and an external thread sleeve;
the direct-drive synchronous motor is arranged at the upper part of the bracket, a sleeve part of a rotor of the direct-drive synchronous motor is in transmission fit with the transmission sleeve, the upper end of the transmission sleeve can slide up and down along the sleeve part, and the lower end of the transmission sleeve is supported on the internal thread sleeve;
the internal thread sleeve is matched with the transmission sleeve through a first bearing and a second bearing, the first bearing is used for bearing the weight of the transmission sleeve and the sucker rod, and the second bearing is used for ensuring the concentricity of the transmission sleeve and the internal thread sleeve;
the external thread sleeve penetrates through the internal thread sleeve and then extends into the transmission sleeve, and the external thread sleeve is in threaded fit with the internal thread sleeve;
the end cover is fixed at the upper end of the transmission sleeve, and the limiting piece is fixed with the sucker rod and is in key connection with the end cover;
the sucker rod sequentially penetrates through the end cover and the external thread sleeve, the sucker rod is matched with the external thread sleeve through a third bearing, and a gap is formed between an inner ring of the third bearing and the sucker rod;
the lifting driving unit is arranged at the lower part of the bracket and is in transmission fit with the external thread sleeve for driving the external thread sleeve to rotate.
Furthermore, drive hoisting unit includes transmission complex servo motor and reduction gear, the worm wheel of reduction gear output passes through the fourth bearing and rotates the lower part that supports in the support, the coaxial worm wheel that runs through of sucker rod, the lower extreme fixed support of external screw thread cover on the worm wheel and with worm wheel transmission cooperation.
Furthermore, the cross section of the inner cavity of the sleeve part of the rotor of the direct-drive synchronous motor and the cross section of the outer side wall of the transmission sleeve are both polygonal.
Furthermore, the locating part includes the stopper of two symmetries, and the stopper of two symmetries passes through bolt, nut and can dismantle the connection, the stopper is equipped with the arc recess that is used for pressing from both sides tight all-metal tapered screw pump's polished rod, the arc recess inboard is equipped with the tooth.
The embodiment of the utility model provides a high stability type drive hoisting device suitable for all-metal conical screw pump possesses following beneficial effect:
1. the first bearing, the second bearing, the internal thread sleeve and other parts are arranged at the lower end of the transmission sleeve, namely below the direct-drive synchronous motor, so that the center of gravity can be reduced, and the stability of the sucker rod during high-speed operation is improved;
2. the external thread sleeve penetrates through the internal thread sleeve and then extends into the transmission sleeve, so that the thread length of the external thread sleeve is not limited by the installation height of the direct-drive synchronous motor, and the lifting adjusting range of the lifting device can be effectively enlarged.
Drawings
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is a partially enlarged schematic structural view of a portion a in fig. 1.
Detailed Description
As shown in fig. 1 and fig. 2, a high-stability driving and lifting device suitable for an all-metal conical screw pump comprises a direct-drive synchronous motor 1, a transmission sleeve 5, an internal thread sleeve 9, an external thread sleeve 6, an end cover 4, a limiting member 2 and a lifting driving unit;
the direct-drive synchronous motor 1 is arranged on an upper mounting plate 8a of a bracket 8 (in the figure, 8b is a support column of the bracket, 8c is a lower mounting plate, and two ends of the support column are fixedly connected with the upper mounting plate and the lower mounting plate), the cross section of an inner cavity of a sleeve part of a rotor of the direct-drive synchronous motor 1 and the cross section of the outer side wall of a transmission sleeve 5 are both polygonal, the upper end of the transmission sleeve 5 extends into the sleeve part, on one hand, the transmission sleeve 5 is in transmission fit with the sleeve part, on the other hand, the transmission sleeve 5 can slide up and down along the sleeve part, and the lower end of the transmission sleeve 5 is supported on an internal thread sleeve 9;
the internal thread sleeve 9 is matched with the transmission sleeve 5 through a first bearing 10 and a second bearing 11, the first bearing 10 is a plane bearing and is used for bearing the weight of the transmission sleeve 5 and the sucker rod 3, the second bearing 11 is a self-aligning bearing and is used for ensuring the concentricity of the transmission sleeve 5 and the internal thread sleeve 9, and the first bearing is positioned below the second bearing;
the external thread sleeve 6 penetrates through the internal thread sleeve 9 and then extends into the transmission sleeve 5, and the external thread sleeve 6 is in thread fit with the internal thread sleeve 9;
the end cover 4 is fixed at the upper end of the transmission sleeve 5, and the limiting piece 2 is fixed with the sucker rod 3 and is in key connection with the end cover 4;
the sucker rod 3 sequentially penetrates through the end cover 4 and the external thread sleeve 6, the sucker rod 3 is matched with the external thread sleeve 6 through a third bearing, a gap is formed between an inner ring of the third bearing and the sucker rod, and the third bearing is a self-aligning bearing and keeps concentricity between the sucker rod 3 and the external thread sleeve 6;
the lifting driving unit is arranged at the lower part of the bracket and is in transmission fit with the external thread sleeve 6 and used for driving the external thread sleeve 6 to rotate.
The drive hoisting unit comprises a servo motor and a speed reducer which are matched in a transmission manner, a worm wheel 7 at the output end of the speed reducer is rotatably supported on a lower mounting plate 8c of the support through a fourth bearing, the fourth bearing is a plane bearing, the sucker rod 3 coaxially penetrates through the worm wheel 7, and the lower end of the external thread sleeve 6 is fixedly supported on the worm wheel and is matched with the worm wheel in a transmission manner.
The drive hoisting unit drives the external thread sleeve 6 to rotate through the worm wheel 7, the external thread sleeve 6 drives the internal thread sleeve 9, the transmission sleeve 5 and the sucker rod 3 to ascend and descend, and because the external thread sleeve 6 stretches into the transmission sleeve 5, the ascending and descending process of the external thread sleeve cannot be limited by a direct-drive synchronous motor, so the thread length of the external thread sleeve cannot be limited by the installation height of the direct-drive synchronous motor, and the ascending and descending regulation range of the hoisting device can be effectively enlarged.
The limiting part 2 comprises two symmetrical limiting blocks, the two symmetrical limiting blocks are detachably connected through bolts and nuts, the limiting blocks are provided with arc-shaped grooves used for clamping polished rods of all-metal conical screw pumps, and teeth are arranged on the inner sides of the arc-shaped grooves. The structure of the limiting part 2 is not shown in the figure, and reference can be made to patent CN201921471526.2.
Claims (4)
1. A high-stability type driving lifting device suitable for an all-metal conical screw pump comprises a direct-drive synchronous motor, a transmission sleeve, an end cover, a limiting piece and a lifting driving unit;
the method is characterized in that:
the lifting device also comprises an internal thread sleeve and an external thread sleeve;
the direct-drive synchronous motor is arranged at the upper part of the bracket, a sleeve part of a rotor of the direct-drive synchronous motor is in transmission fit with the transmission sleeve, the upper end of the transmission sleeve can slide up and down along the sleeve part, and the lower end of the transmission sleeve is supported on the internal thread sleeve;
the internal thread sleeve is matched with the transmission sleeve through a first bearing and a second bearing, the first bearing is used for bearing the weight of the transmission sleeve and the sucker rod, and the second bearing is used for ensuring the concentricity of the transmission sleeve and the internal thread sleeve;
the external thread sleeve penetrates through the internal thread sleeve and then extends into the transmission sleeve, and the external thread sleeve is in threaded fit with the internal thread sleeve;
the end cover is fixed at the upper end of the transmission sleeve, and the limiting piece is fixed with the sucker rod and is in key connection with the end cover;
the sucker rod sequentially penetrates through the end cover and the external thread sleeve, the sucker rod is matched with the external thread sleeve through a third bearing, and a gap is formed between an inner ring of the third bearing and the sucker rod;
the lifting driving unit is arranged at the lower part of the bracket and is in transmission fit with the external thread sleeve for driving the external thread sleeve to rotate.
2. The high-stability type driving and lifting device suitable for the all-metal conical screw pump according to claim 1, wherein: the drive hoisting unit comprises a servo motor and a speed reducer which are matched in a transmission manner, a worm wheel at the output end of the speed reducer is rotatably supported on the lower part of the support through a fourth bearing, the sucker rod coaxially penetrates through the worm wheel, and the lower end of the external thread sleeve is fixedly supported on the worm wheel and is matched with the worm wheel in a transmission manner.
3. The high stability drive lifting device for an all-metal tapered screw pump according to claim 1, wherein: the inner cavity section of the sleeve part of the rotor of the direct-drive synchronous motor and the outer side wall section of the transmission sleeve are both polygonal.
4. The high stability drive lifting device for an all-metal tapered screw pump according to claim 1, wherein: the locating part includes the stopper of two symmetries, and the stopper of two symmetries passes through bolt, nut can dismantle the connection, the stopper is equipped with the arc recess that is used for pressing from both sides tight all-metal tapered screw pump's polished rod, the arc recess inboard is equipped with the tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220983413.6U CN217602914U (en) | 2022-04-27 | 2022-04-27 | High-stability type driving lifting device suitable for all-metal conical screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220983413.6U CN217602914U (en) | 2022-04-27 | 2022-04-27 | High-stability type driving lifting device suitable for all-metal conical screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217602914U true CN217602914U (en) | 2022-10-18 |
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ID=83567855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220983413.6U Active CN217602914U (en) | 2022-04-27 | 2022-04-27 | High-stability type driving lifting device suitable for all-metal conical screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217602914U (en) |
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2022
- 2022-04-27 CN CN202220983413.6U patent/CN217602914U/en active Active
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