CN113340182A - Long-shaft submerged pump alignment method - Google Patents
Long-shaft submerged pump alignment method Download PDFInfo
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- CN113340182A CN113340182A CN202110682499.9A CN202110682499A CN113340182A CN 113340182 A CN113340182 A CN 113340182A CN 202110682499 A CN202110682499 A CN 202110682499A CN 113340182 A CN113340182 A CN 113340182A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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Abstract
The invention discloses a long-shaft submerged pump alignment method, belongs to the field of pump installation, and aims to improve alignment accuracy and efficiency. The motor end coupling is arranged; installing a motor end jackscrew device and a pump end jackscrew device; installing a special alignment rack and a dial indicator; rotating the first pair of wheels around the axis of the first pair of wheels, recording the numerical value of a dial indicator at intervals of set angles, and calculating the radial deviation of the first pair of wheels and the second pair of wheels in each direction; and adjusting the radial deviation by adopting a motor end jackscrew device or a pump end jackscrew device until the radial deviation meets the requirement. The dial indicator is erected through the special alignment frame, the shaft coupling at the motor end is taken as a rotating shaft, the dial indicator is driven to rotate around the periphery of the outer circumferential surface of the second pair to detect the radial deviation between the first pair of wheels and the second pair of wheels, and the reading of the motor end wire jacking device or the pump end wire jacking device on the dial indicator indicates and adjusts the radial deviation between the first pair of wheels and the second pair of wheels, so that the alignment precision of the first pair of wheels and the second pair of wheels is greatly improved, the adjusting time is shortened, and the alignment efficiency is improved.
Description
Technical Field
The invention belongs to the field of pump installation, and particularly relates to a long-shaft submerged pump alignment method.
Background
The long-shaft submerged pump, as shown in fig. 1, includes a pump body portion a and a motor portion B. The pump body part A is composed of a pump body upper structure and a pump body lower structure, the pump body upper structure and the pump body lower structure are connected through a base platen 13, the base platen 13 comprises a pump body base platen 13A and a barrel base platen 13B, and the pump body base platen 13A and the barrel base platen 13B are combined together through foundation bolts 13C. The pump body part A and the motor part B are connected with the pump end coupler 6 through the motor end coupler 1, the motor end coupler 1 and the pump end coupler 6 are connected through the rigid short pipe flange 12, namely the pair wheel I5 of the motor end coupler 1 is connected with the top end of the rigid short pipe flange 12, and the pair wheel II 10 of the pump end coupler 6 is connected with the bottom end of the rigid short pipe flange 12.
The pump body is multistage centrifugal water pump, and to avoid the pump body to cause the pump body violent vibration because of unbalanced reason in the pump body operation process, it is higher to major axis submerged pump installation accuracy requirement.
When the long-axis submerged pump is installed, the pump body part is installed firstly, and the base bedplate 13 is a connecting base for the upper structure and the lower structure of the pump body, so that the levelness of the base bedplate 13 is one of important indexes influencing the installation accuracy of the long-axis hydraulic pump. At present, after the base platen 13 is structurally connected with the lower part of the pump body, the base platen 13 is aligned in a mode that a sizing block is additionally arranged at the bottom of the base platen, the sizing block is repeatedly additionally arranged or replaced according to the levelness of each point of the platen, and grouting of the base platen A of the pump body is carried out until the alignment of the base platen 13A of the pump body is completed. However, this alignment method cannot meet the requirement of high-precision levelness.
After the pump body is installed, the motor end coupling 1 and the pump end coupling 6 are connected, so that the installation between the motor and the pump body is completed, and the concentricity of the first pair of wheels 5 and the second pair of wheels 10 is one of important indexes affecting the installation accuracy of the long-axis hydraulic pump because the second pair of wheels 10 between the first pair of wheels 5 and the pump end coupling 6 of the motor end coupling 1 are connected by the rigid short pipe flange 12. At present, the concentricity of the first pair of wheels 5 and the second pair of wheels 10 is adjusted by repeatedly disassembling and assembling the magnetic meter, which wastes time and has low alignment precision.
Disclosure of Invention
The invention aims to solve the problem of low alignment precision during installation of the existing hydraulic pump, and provides a long-shaft submerged pump alignment method which improves the alignment precision and efficiency.
The technical scheme adopted by the invention is as follows: the long-shaft submerged pump alignment method comprises the steps of after the pump body of a long-shaft submerged pump is installed, aligning and installing a coupling between a motor and the pump body; the method comprises the following steps:
step one, positioning a coupler at a motor end; a motor end wire jacking device is arranged between the motor end connecting bedplate and the motor end protecting cover bedplate; a pump end jackscrew device is arranged between the pump end connecting bedplate and the pump end protecting cover bedplate; a special alignment frame is arranged between the first coupling wheel of the motor end coupling and the second coupling wheel of the pump end coupling; the special alignment rack is L-shaped and comprises a horizontal supporting leg and a vertical supporting leg which are vertical to each other;
establishing a rectangular coordinate system on the mounting surface by taking the bottom surface of the first pair of wheels as the mounting surface and the circle center of the first pair of wheels as the origin; the horizontal supporting leg is detachably arranged on the bottom surface of the first pair of wheels along the Y axis of the rectangular coordinate system; the vertical supporting leg extends downwards to the periphery of the second pair of wheels, a dial indicator is erected on the circumferential surface of the second pair of wheels, and the dial indicator is installed at the corresponding position of the vertical supporting leg and the second pair of wheels;
rotating the first pair of wheels around the axis of the first pair of wheels, recording the numerical value of a dial indicator at intervals of set angles, and calculating the radial deviation of the first pair of wheels and the second pair of wheels in each direction;
and step four, adopting a motor end jackscrew device or a pump end jackscrew device to adjust the radial deviation until the radial deviation meets the requirement.
Furthermore, in the third step, the positive direction of the Y axis is taken as the initial position of the rotation, and the interval angle is 90 degrees; when the first wheel is positioned at the rotation starting position, the dial indicator is adjusted to a zero position; rotating the first pair of wheels, and recording the reading of the dial indicator when the first pair of wheels rotates by 90 degrees; the contact of the dial indicator is pressed in, the reading is positive, otherwise, the reading is negative; recording a reading W of the dial indicator when the dial indicator rotates 90 degrees from the initial position, a reading B of the dial indicator when the dial indicator rotates 180 degrees, and a reading Z of the dial indicator when the dial indicator rotates 270 degrees; the radial deviation Y in the Y-axis direction is equal to B/2; the radial deviation X in the X-axis direction is (W-Z)/2.
Further, in the fourth step, the radial deviation Y in the Y-axis direction and the radial deviation X in the X-axis direction are determined, and the radial deviation which needs to be adjusted is determined;
and rotating the first pair of wheels until the dial indicator rotates to a position where radial deviation needs to be adjusted, and adjusting the motor end screw jacking device or the pump end screw jacking device until the reading of the dial indicator meets the requirement.
And further, after the fourth step, disassembling the special alignment rack, and installing a short pipe flange between the first pair of wheels and the second pair of wheels.
Furthermore, a reinforcing plate is fixed on the outer side of the vertical supporting leg.
Further, a motor end support is fixedly connected to the motor end connecting platen, a motor end jacking screw rod is connected to the motor end support in a threaded mode, and the end portion of the motor end jacking screw rod abuts against the motor end protecting cover platen;
the pump end connecting platen is fixedly connected with a pump end support, the pump end support is in threaded connection with a pump end jacking rod, and the end of the pump end jacking rod abuts against the pump end protecting cover platen.
Further, still include base platen alignment, the concrete method is: jackscrew bolts are arranged in four directions on the base bedplate, levelness is measured in the four directions by using the leveling rod, the inclination direction of each direction is marked, and then the jackscrew bolts are used for adjustment until bubbles of the leveling rod of each point are centered.
The invention has the beneficial effects that: the invention discloses a method for aligning a long-shaft submerged pump, which is characterized in that a dial indicator is erected through an alignment special frame, the axis of a coupling at the motor end is taken as a rotating shaft, the dial indicator is driven to wind around the periphery of a second pair of wheels to detect the radial deviation between the first pair of wheels and the second pair of wheels, and the reading indication of a motor end jackscrew device or a pump end jackscrew device on the dial indicator is used for adjusting the radial deviation between the first pair of wheels and the second pair of wheels, so that the concentricity requirement is met, the detection and the adjustment are convenient and easy, the detection and the adjustment are high in precision, the alignment precision of the first pair of wheels and the second pair of wheels is greatly improved, the adjustment target is clear, the adjustment time is greatly shortened, and the alignment efficiency is improved.
Drawings
FIG. 1 is a schematic view of a long axis submerged pump;
FIG. 2 is a schematic view of a long axis submerged pump alignment;
FIG. 3 is a schematic view of the coupler alignment;
FIG. 4 is a cross-sectional view A-A of FIG. 2;
fig. 5 is a schematic diagram of a dial indicator measurement.
In the figure, a motor end coupler 1, a motor end connecting bedplate 2, a motor end protecting cover bedplate 3, a motor end jackscrew device 4, a motor end support 4A, a motor end jackscrew rod 4B, a first pair of wheels 5, a pump end coupler 6, a pump end connecting bedplate 7, a pump end protecting cover bedplate 8, a pump end jackscrew device 9, a pump end support 9A, a pump end jackscrew rod 9B, a second pair of wheels 10, an alignment special frame 11, a horizontal landing leg 11A, a vertical landing leg 11B, a dial indicator 11C, a reinforcing plate 11D, a short pipe flange 12, a base bedplate 13, a pump body base bedplate 13A, a barrel base bedplate 13B, foundation bolts 13C and jackscrew bolts 14.
Detailed Description
The invention is further described below with reference to the following figures and examples:
the long-shaft submerged pump alignment method comprises the steps of after the pump body of a long-shaft submerged pump is installed, aligning and installing a coupling between a motor and the pump body; as shown in fig. 2 and 3, the method comprises the following steps:
step one, a motor end coupler 1 is in place; a motor end jackscrew device 4 is arranged between the motor end connecting bedplate 2 and the motor end protecting cover bedplate 3; a pump end jackscrew device 9 is arranged between the pump end connecting bedplate 7 and the pump end protecting cover bedplate 8; a special alignment frame 11 is arranged between a first coupling wheel 5 of the motor end coupling 1 and a second coupling wheel 10 of the pump end coupling 6; the special alignment rack 11 is L-shaped and comprises a horizontal supporting leg 11A and a vertical supporting leg 11B which are perpendicular to each other;
establishing a rectangular coordinate system on the mounting surface by taking the bottom surface of the first pair of wheels 5 as the mounting surface and the circle center of the bottom surface as the origin; the horizontal supporting leg 11A is detachably arranged on the bottom surface of the first pair of wheels 5 along the Y axis of the rectangular coordinate system; the vertical supporting leg 11B extends downwards to the outer periphery of the second pair of wheels 10, a dial indicator 11C is erected on the circumferential surface of the second pair of wheels 10, and the dial indicator 11C is installed at the corresponding position of the vertical supporting leg 11B and the second pair of wheels 10;
rotating the first pair of wheels 5 around the axis of the first pair of wheels 5, recording the numerical value of the dial indicator 11C at intervals of set angles, and calculating the radial deviation of the first pair of wheels 5 and the second pair of wheels 10 in each direction;
and step four, adopting the motor end jackscrew device 4 or the pump end jackscrew device 9 to adjust the radial deviation until the radial deviation meets the requirements.
The invention discloses a long-shaft submerged pump alignment method, wherein after a pump body of a long-shaft submerged pump is installed, a pump end coupler 6 is in place. Therefore, after the pump body is installed, the motor end coupler 1 is directly placed in place. The first step is mainly to carry out the positioning of the motor end coupler 1 and the installation of an alignment auxiliary facility, wherein the alignment auxiliary facility comprises a motor end jackscrew device 4, a pump end jackscrew device 9, an alignment special frame 11 and the like. Certainly, the motor end jackscrew device 4 and the pump end jackscrew device 9 can be installed according to actual requirements after the radial deviation measurement is carried out on the special alignment frame 11, but the installation process may interfere with the radial deviation of the first pair of wheels 5 and the second pair of wheels 10 to trigger secondary alignment, so that the alignment efficiency is affected, and therefore, in the invention, the motor end jackscrew device 4 and the pump end jackscrew device 9 are installed simultaneously with the special alignment frame 11 before the deviation measurement is carried out, so that the problems can be effectively avoided. And, install simultaneously, it is more convenient to install, does benefit to and practices thrift total installation time.
The special alignment rack 11 disclosed by the invention is simple in structure, and the horizontal supporting leg 11A and the vertical supporting leg 11B are mutually vertical. The horizontal supporting legs 11A are used for connecting the special alignment rack 11 with a long-axis submerged pump, and the vertical supporting legs 11B are used for erecting a dial indicator 11C. Because the long-shaft submerged pump is a multi-stage vertical pump, and a large external force is needed for rotating the pump end, the alignment special frame 11 is arranged on the first pair of wheels 5 at the motor end, and the dial indicator 11C is arranged on the outer circumferential surface of the second pair of wheels 10 at the pump end. During installation, the horizontal leg 11A is installed to be attached to the bottom surface of the first pair of wheels 5, and the vertical leg 11B is parallel to the axes of the first pair of wheels 5 and the second pair of wheels 10. Wherein, the bottom surface of the first pair of wheels 5 is opposite to the top surface of the second pair of wheels 10, and the short pipe flange 12 is arranged between the bottom surface of the first pair of wheels 5 and the top surface of the second pair of wheels 10. The dial indicator 11C is mounted on the vertical leg 11B, and the contact thereof contacts the outer circumferential surface of the second wheel 10. And taking the circle center of the bottom surface of the first pair of wheels 5 as an origin, installing the horizontal supporting leg 11A on the bottom surface of the first pair of wheels 5, and taking the horizontal supporting leg 11A as an X axis, so that when the first pair of wheels 5 rotates around the circle center, the horizontal supporting leg 11A rotates along with the horizontal supporting leg to drive the vertical supporting leg 11B to rotate along with the horizontal supporting leg, and the contact of the dial indicator 11C rotates around the outer circumferential surface of the second pair of wheels 10 for one circle, so that the radial deviation at each position can be measured. When the radial deviation at a certain position is detected to be not in accordance with the requirement, the motor end jackscrew device 4 or the pump end jackscrew device 9 is adopted to adjust the radial deviation until the radial deviation is in accordance with the requirement, so that the adjustment of the concentricity of the wheel is completed.
In order to ensure the strength of the vertical leg 11B and avoid the vertical leg 11B from deforming during measurement, thereby ensuring the aligning accuracy of the pair of wheels, a reinforcing plate 11D is fixed on the outer side of the vertical leg 11B.
The angular interval may be 45 °, etc., but for the convenience of measurement and adjustment, it is most preferable that the radial deviation is measured by the following steps, as shown in fig. 5: taking the positive direction of the Y axis as the initial position of rotation, and the interval angle is 90 degrees; when the first wheel 5 is at the rotation starting position, the dial indicator 11C is adjusted to a zero position, and the reading of the dial indicator 11C is 0; rotating the first pair of wheels 5, and recording the reading of the dial indicator when the first pair of wheels rotates 90 degrees; the contact of the dial indicator is pressed in, the reading is positive, otherwise, the reading is negative; recording a reading W of the dial indicator when the dial indicator rotates 90 degrees from the initial position, a reading B of the dial indicator when the dial indicator rotates 180 degrees, and a reading Z of the dial indicator when the dial indicator rotates 270 degrees; the radial deviation Y in the Y-axis direction is equal to B/2; the radial deviation X in the X-axis direction is (W-Z)/2.
In the fourth step, the radial deviation needing to be adjusted is judged according to the radial deviation Y in the Y-axis direction and the radial deviation X in the X-axis direction. Namely if x exceeds the allowable range of the radial deviation, the radial deviation x needs to be adjusted; if y exceeds the allowable range of radial deviation, the radial deviation y needs to be adjusted.
When the motor end jackscrew device 4 is erected, four sets of motor end jackscrew devices 4 are uniformly arranged around the axis of the motor end coupler 1, and orthographic projections of the four sets of motor end jackscrew devices 4 on a rectangular coordinate system are respectively positioned on an X axis and a Y axis. The motor end screw device 4 comprises a motor end support 4A fixedly connected to the motor end connecting platen 2, a motor end screw rod 4B in threaded connection to the motor end support 4A, and the end of the motor end screw rod 4B abuts against the motor end protecting cover platen 3.
When the pump end jackscrew device 9 is erected, four sets of pump end jackscrew devices 9 are uniformly arranged around the axis of the pump end coupler 6, and the orthographic projections of the four sets of pump end jackscrew devices 9 on a rectangular coordinate system are respectively positioned on an X axis and a Y axis. The pump end jackscrew device 9 comprises a pump end support 9A fixedly connected to the pump end connecting platen 7, a pump end jackscrew rod 9B in threaded connection to the pump end support 9A, and the end of the pump end jackscrew rod 9B abuts against the pump end protecting cover platen 8.
When the radial deviation X needs to be adjusted, rotating the first pair of wheels 5 until the horizontal supporting leg 11A rotates to be overlapped with the X axis, if W-Z is larger than 0, screwing the motor end jackscrew device 4 corresponding to the negative direction of the X axis, pushing the first pair of wheels 5 to move along the positive direction of the X axis, or screwing the pump end jackscrew device 9 corresponding to the positive direction of the X axis, pushing the second pair of wheels 10 to move along the negative direction of the X axis until the reading of the dial indicator 11C meets the requirement; and if W-Z is less than 0, the opposite is true.
When the radial deviation Y needs to be adjusted, rotating the first pair of wheels 5 until the horizontal supporting leg 11A rotates to be overlapped with the Y axis, if B is negative, screwing the motor end jackscrew device 4 corresponding to the positive direction of the Y axis to push the first pair of wheels 5 to move along the negative direction of the Y axis, or screwing the pump end jackscrew device 9 corresponding to the negative direction of the Y axis to push the second pair of wheels 10 to move along the positive direction of the Y axis until the reading of the dial indicator 11C meets the requirement; b is positive, and vice versa.
After the fourth step, the special alignment rack 11 is disassembled, and the short pipe flange 12 is installed between the first pair of wheels 5 and the second pair of wheels 10.
When the pump body of the long-shaft submerged pump is installed, the base platen 13 is a connecting base for the upper structure and the lower structure of the pump body, and after the base platen 13 is connected with the lower structure of the pump body, the base platen 13 needs to be aligned. Conventionally, according to the levelness of each point of the bedplate, the bottom of the bedplate is repeatedly additionally provided with or replaced with a gasket to adjust the levelness, the adjusting efficiency is low, the leveling precision is low, and in order to avoid the problem, the specific method for aligning the base bedplate 13 comprises the following steps: as shown in fig. 4, jack bolts 14 are installed at four positions on the base plate 13, and levelness is measured at four positions using a level and the inclination direction of each position is marked, and then adjusted with the jack bolts 14 until the bubble of the level at each point is centered. And then checking the connection condition of the pump body base plate 13 and the pump body lower part structure, rechecking the tightening degree of each connecting bolt, rechecking the levelness of the base plate 13 again after the rechecking is finished, and performing grouting operation on the base plate 13 after the correctness is confirmed. During grouting, the bolt 14 is prohibited to touch, and during grouting, the bottom of the bolt 14 is provided with a sleeve, so that the condition that the bolt 14 cannot be adjusted after being poured by grouting material is avoided.
Claims (7)
1. The long-shaft submerged pump alignment method comprises the steps of after the pump body of a long-shaft submerged pump is installed, aligning and installing a coupling between a motor and the pump body; the method is characterized in that: the method comprises the following steps:
step one, positioning a motor end coupler (1); a motor end wire jacking device (4) is arranged between the motor end connecting bedplate (2) and the motor end protecting cover bedplate (3); a pump end jackscrew device (9) is arranged between the pump end connecting bedplate (7) and the pump end protecting cover bedplate (8); a special alignment frame (11) is arranged between a first pair wheel (5) of the motor end coupling (1) and a second pair wheel (10) of the pump end coupling (6); the special alignment rack (11) is L-shaped and comprises a horizontal supporting leg (11A) and a vertical supporting leg (11B) which are perpendicular to each other;
establishing a rectangular coordinate system on the mounting surface by taking the bottom surface of the first pair of wheels (5) as the mounting surface and the circle center of the first pair of wheels as the origin; the horizontal supporting leg (11A) is detachably arranged on the bottom surface of the first pair of wheels (5) along the Y axis of the rectangular coordinate system; the vertical supporting leg (11B) extends downwards to the periphery of the second pair of wheels (10), a dial indicator (11C) is erected on the circumferential surface of the second pair of wheels (10), and the dial indicator (11C) is installed at the corresponding position of the vertical supporting leg (11B) and the second pair of wheels (10);
rotating the first pair of wheels (5) around the axis of the first pair of wheels (5), recording the numerical value of a dial indicator (11C) at intervals of set angles, and calculating the radial deviation of the first pair of wheels (5) and the second pair of wheels (10) in each direction;
and step four, adopting a motor end jackscrew device (4) or a pump end jackscrew device (9) to adjust the radial deviation until the radial deviation meets the requirement.
2. The method of aligning a long axis submerged pump of claim 1, wherein: in the third step, the positive direction of the Y axis is taken as the initial position of the rotation, and the interval angle is 90 degrees; when the first wheel (5) is at the rotation initial position, the dial indicator (11C) is adjusted to a zero position; rotating the first pair of wheels (5), and recording the reading of the dial indicator when the first pair of wheels rotates 90 degrees; the contact of the dial indicator is pressed in, the reading is positive, otherwise, the reading is negative; recording a reading W of the dial indicator when the dial indicator rotates 90 degrees from the initial position, a reading B of the dial indicator when the dial indicator rotates 180 degrees, and a reading Z of the dial indicator when the dial indicator rotates 270 degrees; the radial deviation Y in the Y-axis direction is equal to B/2; the radial deviation X in the X-axis direction is (W-Z)/2.
3. The method of aligning a long shaft submerged pump of claim 2, wherein: in the fourth step, the radial deviation needing to be adjusted is judged according to the radial deviation Y in the Y-axis direction and the radial deviation X in the X-axis direction;
and rotating the first pair of wheels (5) until the dial indicator (11C) rotates to a position where radial deviation needs to be adjusted, and adjusting the motor end jackscrew device (4) or the pump end jackscrew device (9) until the reading of the dial indicator (11C) meets the requirement.
4. The method of aligning a long shaft submerged pump as claimed in claim 1, 2 or 3, wherein: and fourthly, disassembling the special alignment rack (11), and installing a short pipe flange (12) between the first pair of wheels (5) and the second pair of wheels (10).
5. The method of aligning a long shaft submerged pump as claimed in claim 1, 2 or 3, wherein: a reinforcing plate (11D) is fixed to the outer side of the vertical leg (11B).
6. The method of aligning a long shaft submerged pump as claimed in claim 1, 2 or 3, wherein:
a motor end support (4A) is fixedly connected to the motor end connecting bedplate (2), a motor end jacking rod (4B) is in threaded connection with the motor end support (4A), and the end part of the motor end jacking rod (4B) abuts against the motor end protecting cover bedplate (3);
the pump end is fixedly connected with a pump end support (9A) on the pump end connecting bedplate (7), a pump end jacking rod (9B) is connected with the pump end support (9A) in a threaded mode, and the end portion of the pump end jacking rod (9B) abuts against the pump end protecting cover bedplate (8).
7. The method of aligning a long axis submerged pump of claim 1, wherein: still include base platen (13) alignment, the concrete method is: jackscrew bolts (14) are arranged at four directions on a base bedplate (13), levelness is measured at the four directions by using a horizontal ruler, the inclined direction of each direction is marked, and then the jackscrew bolts (14) are used for adjusting until bubbles of the horizontal ruler at each point are centered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682499.9A CN113340182B (en) | 2021-06-17 | 2021-06-17 | Long-shaft submerged pump alignment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682499.9A CN113340182B (en) | 2021-06-17 | 2021-06-17 | Long-shaft submerged pump alignment method |
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| CN113340182A true CN113340182A (en) | 2021-09-03 |
| CN113340182B CN113340182B (en) | 2022-10-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115076243A (en) * | 2022-06-30 | 2022-09-20 | 内蒙古敕勒川糖业有限责任公司 | Centering and aligning method for large nonstandard shaft transmission equipment |
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| CN201547142U (en) * | 2009-09-25 | 2010-08-11 | 天津市天发重型水电设备制造有限公司 | Novel coupler used on hydraulic pump |
| CN205642263U (en) * | 2016-05-18 | 2016-10-12 | 中国化学工程第十一建设有限公司 | Shafting centering device of shaft coupling |
| CN206056484U (en) * | 2016-08-18 | 2017-03-29 | 莱芜钢铁集团有限公司 | A kind of diaphragm type coupler alignment tool |
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| CN115076243A (en) * | 2022-06-30 | 2022-09-20 | 内蒙古敕勒川糖业有限责任公司 | Centering and aligning method for large nonstandard shaft transmission equipment |
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| Publication number | Publication date |
|---|---|
| CN113340182B (en) | 2022-10-18 |
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