CN114857471B - Calculation method for rapidly calculating center data of horizontal water pump - Google Patents
Calculation method for rapidly calculating center data of horizontal water pump Download PDFInfo
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- CN114857471B CN114857471B CN202210351685.9A CN202210351685A CN114857471B CN 114857471 B CN114857471 B CN 114857471B CN 202210351685 A CN202210351685 A CN 202210351685A CN 114857471 B CN114857471 B CN 114857471B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000004364 calculation method Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 claims description 18
- 238000003379 elimination reaction Methods 0.000 claims description 9
- 230000008030 elimination Effects 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000002683 foot Anatomy 0.000 description 23
- 238000005259 measurement Methods 0.000 description 22
- 230000008878 coupling Effects 0.000 description 12
- 238000010168 coupling process Methods 0.000 description 12
- 238000005859 coupling reaction Methods 0.000 description 12
- 230000014509 gene expression Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 210000004744 fore-foot Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/02—Locking means
- F16M2200/021—Locking means for rotational movement
- F16M2200/022—Locking means for rotational movement by friction
Abstract
The invention discloses a calculation method for rapidly calculating center data of a horizontal water pump, which comprises coarse alignment; the precise alignment is realized, a stable device is fixed on the coupler, the dial indicator is fixed on the sliding head, and the sliding head is rotated so as to adjust the position of the dial indicator to finish the marking of the dial indicator; the motor is adjusted by taking the water pump as a reference; judging whether the standard is met, if the standard is not within the specified range, repeating the steps; the invention has the beneficial effects that the preset formula can enable staff to measure according to the required numerical value, and the result obtained by substituting the formula can obtain the adjustment quantity and the direction required to be adjusted, thereby being convenient and quick and reducing the operation difficulty.
Description
Technical Field
The invention relates to the field of horizontal calibration of horizontal pumps, in particular to a calculation method for rapidly calculating center data of a horizontal water pump.
Background
The horizontal pump is widely applied to the thermal power plant, and the running of the horizontal pump affects the stable running of the whole power plant to a greater or lesser extent. The vibration of the water pump is an important index of the running quality of the water pump, and various factors influencing the vibration of the water pump are available, such as radial shaking of a coupling, end face buckling, bending of a pump shaft, central values of the water pump and a motor, rigidity of a foundation and the like. Therefore, the centering of the water pump and the motor is an important procedure when the water pump is installed, the vibration in the operation of the water pump can be influenced by the magnitude of the center deviation value, and how to quickly and accurately correct the centers of the water pump and the motor can greatly influence the installation progress and the quality of the water pump.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above-mentioned or existing problems occurring in the prior art.
Therefore, the invention aims to provide a calculation method for quickly calculating the center data of the horizontal water pump.
In order to solve the technical problems, the invention provides the following technical scheme: a calculation method for rapidly calculating center data of a horizontal water pump comprises the following steps: rough alignment;
the precise alignment is realized, a stable device is fixed on the coupler, the dial indicator is fixed on the sliding head, and the sliding head is rotated so as to adjust the position of the dial indicator to finish the marking of the dial indicator;
the motor is adjusted by taking the water pump as a reference;
judging whether the standard is met, and if the standard is not within the specified range, repeating the steps.
As a preferable scheme of the calculation method for rapidly calculating the center data of the horizontal water pump, the invention comprises the following steps: and (5) performing rough alignment by using a workpiece with high straightness such as a ruler or a vernier caliper.
As a preferable scheme of the calculation method for rapidly calculating the center data of the horizontal water pump, the invention comprises the following steps: the step of marking the meter comprises the steps of carrying out 4 equal parts on the couplings, marking every 90 degrees, and then semi-linkage connecting the two couplings; and slowly rotating the coupler, recording the readings of each dial indicator every 90 degrees until the coupler rotates back to the position of the first reading, recording 4 groups of readings of each dial indicator, and recording the measured values according to the positions of the read values by using a circular layout.
As a preferable scheme of the calculation method for rapidly calculating the center data of the horizontal water pump, the invention comprises the following steps: the deviation elimination comprises calculation of the adjustment quantity of each fulcrum when opening is eliminated and calculation of the final adjustment quantity of each fulcrum when the height difference between the motor and the water pump is eliminated.
As a preferable scheme of the calculation method for rapidly calculating the center data of the horizontal water pump, the invention comprises the following steps: the adjustment amount of each fulcrum of the opening value is calculated and eliminated by adopting the following formula:
wherein b is the motor front foot elevation value, a is the lower opening value, Z is the distance between the motor rear foot and the coupler, and D is the diameter of the coupler.
As a preferable scheme of the calculation method for rapidly calculating the center data of the horizontal water pump, the invention comprises the following steps: the final adjustment quantity of each fulcrum when the height difference between the motor and the water pump is calculated and eliminated adopts the following formula:
wherein D is the diameter of the coupler; y is the distance between the front foot of the motor and the coupler; z is the distance between the rear foot of the motor and the coupler; a is a lower opening value; b, raising the front foot of the motor; c is a higher value of the water pump than the motor; d is a coupler lifting value when the rear foot of the motor is lifted and the lower opening value a is eliminated.
As a preferable scheme of the calculation method for rapidly calculating the center data of the horizontal water pump, the invention comprises the following steps: the stable device is needed in the measurement process and comprises a fixing ring, an I-shaped sliding rail and a sliding head, wherein the fixing ring is of a two-semicircle combined structure, the I-shaped sliding rail is arranged on a circle, and the sliding head is in sliding fit with the I-shaped sliding rail.
As a preferable scheme of the calculation method for rapidly calculating the center data of the horizontal water pump, the invention comprises the following steps: the fixing rings further comprise plugs, jacks and locking pieces, the plugs and the jacks are respectively arranged on contact surfaces of the two half fixing rings, which are respectively clamped and matched, to form a clamping structure, and the locking pieces are arranged below the sections, so that the two fixing rings are fixed together through bolts.
As a preferable scheme of the calculation method for rapidly calculating the center data of the horizontal water pump, the invention comprises the following steps: the sliding head is further provided with pulleys, extrusion bolts and bearing plates, the sliding head is formed by combining two half sliding heads through bolts, the extrusion bolts are arranged in the middle of the sliding head, the pulleys are arranged at four corners of the sliding head, and the bearing plates are arranged above the sliding head.
As a preferable scheme of the calculation method for rapidly calculating the center data of the horizontal water pump, the invention comprises the following steps: the sliding head 103 is divided into two halves from the middle and is connected together through bolts, and a bolt hole is formed in the middle of the connecting position.
The invention has the beneficial effects that: compared with the traditional centering operation, the invention can immediately obtain the adjustment quantity of the motor by directly calculating by the set calculation method after determining the setting mode of the dial indicator, avoids the calculation errors when different formulas are required to be applied during calculation, and simultaneously each measurement quantity of the calculation formulas is marked, so that the measurement personnel can correspond one by one during measurement, the key data is prevented from being missed, the corresponding adjustment quantity can be obtained by substituting the corresponding measurement result into the formulas for calculation before adjustment, and the admission threshold of the water pump centering center for the staff is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a calculation flow chart of a calculation method for rapidly calculating center data of a horizontal water pump.
Fig. 2 (a) to 2 (d) are graphs of dial indicators at the time of measurement of the calculation method for quickly calculating the center data of the horizontal water pump.
Fig. 3 is a schematic diagram of the readings of the dial indicators at each position of the calculation method for rapidly calculating the center data of the horizontal water pump.
Fig. 4 is a schematic diagram of centering adjustment of a calculation method for rapidly calculating the center data of the horizontal water pump.
Fig. 5 is a block diagram of a stationary device for quickly calculating the percentage table of the calculation method of the center data of the horizontal water pump.
Fig. 6 is a diagram of a device for quickly calculating the position of the adjustment dial indicator of the calculation method of the center data of the horizontal water pump.
Fig. 7 is a schematic diagram of a mobile terminal of a calculation method for rapidly calculating center data of a horizontal water pump.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1, a first embodiment of the present invention provides a method for quickly calculating center data of a horizontal water pump, which includes coarse alignment; the precise alignment is realized, a stable device 100 is fixed on the coupler, the dial indicator is fixed on the sliding head 103, and the sliding head 103 is rotated so as to adjust the position of the dial indicator to finish the dial indicator marking; the motor is adjusted by taking the water pump as a reference; judging whether the standard is met, and if the standard is not within the specified range, repeating the steps.
Specifically, the two ends of the motor and the horizontal water pump are adjusted to a rough centering position, then the motor and the horizontal water pump are accurately aligned, the dial indicator is required to be placed on the stabilizing device 100 during the accurate alignment, the sliding head 103 on the stabilizing device 100 can do circular motion around the plane where the stabilizing device 100 is located, the dial indicator is placed on the sliding head 103, the deviation between the axial distances of the placing positions of the dial indicator can be eliminated during the measurement, the measurement result is more accurate, the accurate alignment is performed through three sets of dial indicators, the deviation value between the motor and the horizontal water pump is calculated by the measurement result obtained by integrating the dial indicators and various measurement positions, then the deviation is eliminated, the motor is mainly adjusted to adjust the alignment during the deviation elimination process, the motor is more convenient to adjust and move relative to the water pump, the adjustment amount during the deviation elimination is the deviation amount obtained during the accurate alignment measurement, whether the standard is achieved or not is judged after the adjustment is completed, and if the two steps of accurate alignment and the deviation elimination are not continued until the horizontal water pump and the motor are centered.
In summary, the adjustment amount obtained by calculating the deviation amounts obtained by simultaneously measuring the plurality of dial indicators can greatly reduce repeated procedures in the adjustment process, improve the working efficiency, and more accurately and rapidly center the horizontal water pump and the motor.
Example 2
Referring to fig. 1 to 4, a second embodiment of the present invention is based on the first embodiment: the method also comprises the step of performing rough alignment by using workpieces with higher straightness such as a ruler or a vernier caliper.
Further, the step of marking the meter comprises the steps of carrying out 4 equal parts on the couplings, marking every 90 degrees, and then semi-linkage connecting the two couplings; and slowly rotating the coupler, recording the readings of each dial indicator every 90 degrees until the coupler rotates back to the position of the first reading, recording 4 groups of readings of each dial indicator, and recording the measured values according to the positions of the read values by using a circular layout.
Preferably, the deviation elimination includes calculating the adjustment amount of each fulcrum when eliminating the opening, and calculating the final adjustment amount of each fulcrum when eliminating the difference in height between the motor and the water pump, wherein the adjustment amount of each fulcrum when calculating the opening value adopts the following formula:
wherein b is the motor front foot elevation value, a is the lower opening value, Z is the distance between the motor rear foot and the coupler, and D is the diameter of the coupler.
Preferably, the final adjustment quantity of each fulcrum when the height difference between the motor and the water pump is calculated and eliminated adopts the following formula:
wherein D is the diameter of the coupler; y is the distance between the front foot of the motor and the coupler; z is the distance between the rear foot of the motor and the coupler; a is a lower opening value; b, raising the front foot of the motor; c is a higher value of the water pump than the motor; d is a coupler lifting value when the rear foot of the motor is lifted and the lower opening value a is eliminated.
Specifically, the workpiece with higher straightness can be used for adjusting the water pump and the motor at the two ends of the coupler to a rough center position at the first time, the adjustment quantity is not more than the measurement range of the dial indicator during accurate measurement after convenience, the subsequent adjustment work is also convenient, the coupler 4 is equally divided, every 90 degrees is used as a mark, the two ends of the coupler can be connected in a half-linkage mode, the two ends of the coupler can be simultaneously rotated in a half-linkage mode but are not in a completely fixed mode, the jumping between the two ends of the coupler can be expressed in the rotating process of the coupler, and the accuracy measurement between the two ends of the coupler is facilitated.
Furthermore, 2 dial indicators are respectively arranged at symmetrical positions which are positioned at the two ends of the same diameter of the coupler and are equal to each other and close to the edge from the center, 1 dial indicator is arranged on the circumference of the coupler, the dial indicators are arranged on the motor or the water pump coupler, the contacts of the dial indicators are slightly compressed before measurement, then the readings of the dial indicators are recorded, any point in equal parts of the coupler 4 is taken as an origin and a rotation starting point, the coupler is slowly rotated to enable the coupler to rotate 360 degrees, the slow rotation is caused by the generation of rotation errors in the rotation process, if the coupler is quickly rotated, the needle head of the dial indicator is inevitably caused to jump on the contact surface of the dial indicator which does not belong to the measurement plan in the rotation process, after the dial indicator rotates for a whole circle, whether the readings of the dial indicator on the circumference are the same as the readings of the initial point are observed, if the difference between readings of the dial indicators on the measuring end face is the same as the initial difference, if the difference is larger than 0.02mm, the reason should be searched and the measurement should be re-performed, if the difference is larger than 0.02mm, the difference is the difference between the measurement results of the two ends of the current coupling, if the difference is not eliminated, the difference is infinitely amplified in subsequent calculation and adjustment, so that the difference needs to be repeatedly adjusted in the measuring process until the difference is smaller than 0.02mm, the data can be recorded, the readings of each dial indicator are recorded in 4 groups, the measured values are recorded according to the positions of the reading values by using a circular layout as shown in fig. 3, the circumferential gap A is recorded outside the circumference, the plane gap B is recorded in the circumference, the measured records after one circle of rotation are actually measured and the end face gap of the actually measured records are calculated, and the calculation formula is as follows:
E1＝(B1+C3)/2 E2＝(B2+C4)/2
E3＝(B3+C1)/2 E4＝(B4+C2)/2 (3)
when the d value is calculated, there are two cases: that is, the d value is larger than the c value or the d value is smaller than the c value, and the final adjustment amounts of the front foot and the rear foot of the motor are respectively deltax and deltay.
Case one: d is greater than c, Δx=b- (d-c), Δy=c-d, case two: when the d value is smaller than the c value, Δx=b+ (c-d) and Δy=d-c, which means that after the opening value of the coupler is eliminated, if the central line of the motor shaft is higher than the central line of the pump shaft, the front foot and the rear foot of the motor need to be correspondingly subtracted by the higher amount;
the second expression is that after the opening value of the coupler is eliminated, if the central line of the motor shaft is lower than that of the pump shaft, the front foot and the rear foot of the motor need to be correspondingly increased by the defect amount.
Specifically, when d > c,
when d < c, the final expressions of Δx, Δy can be obtained as well.
(4) The final expressions of Deltax and Deltay are obtained in (5), wherein D, Y, Z is expressed as a long reading value, and no direction change exists no matter how the opening and the height difference are changed, namely the + -numbers of the opening and the height difference are not changed; in the deduction process, a expresses a lower opening value, c expresses a higher value of the water pump than that of the motor, and the lower opening value and the higher value have directivity. Therefore, it isThe term "a" in (a) "is understood to mean the state of opening downwards, if a pump is needed for centering, all values are the same, opening only is opening upwards, and a' = -a is present, then +.>Wherein "a'" expresses the state of the upper opening. Similarly, c in (4) and (5) indicates a state in which the pump is higher than the motor, or the motor is lower, "+c" indicates that the motor is lower than the pump, and a lift-off is required.
In summary, the expressions Δx and Δy represent the actual states of the opening of the coupling and the difference of 0 height between the pump and the motor. Specifically, when the coupling is a down-opening, the expression first part should be negative, i.e., have a "-" sign; when the coupling is open-ended, the expression first part should be positive; when the motor is below the pump, the second part of the expression is positive; when the motor is higher than the pump, the second part of the expression should be negative, and the general expression of Δx and Δy after correction is that the motor has directivity in relation to the opening and the height of the pump and the motor:
the meaning of the expression at this time is: forefoot adjustment = [ (upper opening value-lower opening value)/coupling diameter ]. Distance of coupling to motor forefoot- (outer circle upper-outer circle lower);
the adjustment amount of the rear foot= [ (upper opening value-lower opening value)/diameter of the coupler ]. The distance from the coupler to the rear foot of the motor- (upper outer circle-lower outer circle);
the upper two types are suitable for the dial indicator to be arranged on the pump, and the pointer is arranged on the back surface of the motor coupler
Wherein: Δx is the forefoot adjustment amount; Δy is the hind leg adjustment; d is the diameter of the coupler; y is the distance between the front foot of the motor and the coupler; z is the distance from the rear foot of the motor to the front foot of the motor; a is the upper and lower opening difference; c is the difference value of the upper part and the lower part of the outer circle; the above formula applies to the dial indicator set-up as shown in fig. 2 (a).
It can be seen from this:
the formula of the dial indicator erection as shown in fig. 2 (b) is:
the formula of the dial indicator erection as shown in fig. 2 (c) is:
the formula of the dial indicator erection as shown in fig. 2 (d) is:
the general expression has the advantages that the problems of whether the coupler is opened upwards or downwards, whether the motor is high or high in pump are solved in calculation, the measured numerical value is directly filled into calculation, the obtained result is positive, the motor needs to be heightened, the obtained result is negative, and the motor needs to be reduced.
Example 3
Referring to fig. 5 to 7, a third embodiment of the present invention is shown, which is different from the first two embodiments in that: in the embodiment of the two previous embodiments, an accurate measuring instrument such as a dial indicator is used, and on the surface of a shell of a motor or a water pump, the motor or the water pump is often damaged by the operations such as daily maintenance and use, if such errors are not eliminated, the measuring errors are amplified in the measuring process of the two previous embodiments, so that the present embodiment provides a stabilizing device 100 for being fixed on a motor or a horizontal water pump coupling, the stabilizing device 100 comprises a fixing ring 101, an i-shaped sliding rail 102 and a sliding head 103, the fixing ring 101 is provided as a two-semicircle combined structure, the i-shaped sliding rail 102 is arranged on a circle, and the sliding head 103 is in sliding fit with the i-shaped sliding rail 102.
Further, the fixing ring 101 further comprises a plug 101a, an inserting hole 101b and a locking piece 101, the plug 101a and the inserting hole 101b are respectively arranged on contact surfaces of the two half fixing rings 101 in a clamping fit mode, a clamping structure is formed, the locking piece 101b is arranged below a section, the two fixing rings 101 are fixed together through bolts, the sliding head 103 is further provided with a pulley 103a, a pressing bolt 103b and a bearing plate 103c, the sliding head 103 is formed by combining the sliding heads 103 of the two half blocks through bolts, the pressing bolt 103b is arranged in the middle of the sliding head 103, the pulley 103a is arranged at four corners of the sliding head 103, the bearing plate 103c is arranged above the sliding head 103, the sliding head 103 is separated from the middle by two halves and is connected together through bolts, and a bolt hole is formed in the middle of the connecting position.
When the device is used, the two half fixing rings 101 are clamped on the outer ring of the coupler, after the plug 101a and the jack 101b are clamped and matched, the locking pieces 101c at the two ends are completely attached, the plug is clamped by bolts, the plug is formed into a complete fixing ring 101, round grooves are formed in the inner side and the outer side of the fixing ring 101, an I-shaped track 102 with an I-shaped cross section is formed, the sliding head 103 is arranged on the I-shaped track 102, the sliding head 103 is formed by combining the sliding heads 103 of the two half blocks, the sliding head 103 is fixedly locked on the track through the two bolts, the pulley 103a is internally provided with the pulley 103a, the pulley 103a is of a structure capable of moving, the sliding head 103 can slide on the I-shaped track 102, the bearing plate 103c is further arranged on the sliding head 103, the bearing plate 103c is used for placing a dial indicator, the dial indicator is placed at a stable position, measurement errors caused by uneven protrusions and depressions are avoided, the sliding head 103b can be locked and pressed when the sliding head 103 is adjusted to a required position, the sliding head 103 is fixed, the whole measurement accuracy can be prevented from changing the measurement errors caused by the axial movement of the dial indicator, and the measurement errors can be prevented from being caused by the axial movement of the dial indicator.
It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (4)
1. A calculation method for rapidly calculating center data of a horizontal water pump is characterized by comprising the following steps of: comprising the steps of (a) a step of,
coarse alignment is carried out by a ruler or a vernier caliper,
the method comprises the steps of precisely aligning, fixing a stabilizing device (100) on a coupler, wherein the stabilizing device (100) comprises a fixed ring (101), an I-shaped sliding rail (102) and a sliding head (103), the fixed ring (101) is of a two-semicircle combined structure, the I-shaped sliding rail (102) is arranged on a circle, the sliding head (103) is in sliding fit with the I-shaped sliding rail (102), a dial indicator is fixed on the sliding head (103), the sliding head (103) is rotated so as to adjust the position of the dial indicator to finish the dial indicator, the step of the dial indicator comprises the steps of carrying out 4 equal parts on the coupler, marking every 90 DEG, then carrying out semi-linkage connection between the two couplers, slowly rotating the coupler, recording the readings of each dial indicator every 90 DEG until the coupler rotates back to the position of the first reading, recording 4 groups of the readings of each dial indicator, using circular layout records according to the positions of the measured values, carrying out deviation elimination through the measured data, wherein the deviation elimination comprises calculating the fulcrum adjustment quantity of the elimination opening value, and calculating the final fulcrum adjustment quantity of the motor and the water pump height difference elimination;
when the device is used, the two half fixing rings (101) are clamped on the outer ring of the coupler, after the plug (101 a) is clamped and matched with the jack (101 b), the locking pieces (101 c) at the two ends are completely attached to each other, the locking pieces are clamped by the bolts, the locking pieces form a complete fixing ring (101), round grooves are formed in the inner side and the outer side of the fixing ring (101), an I-shaped track (102) with an I-shaped cross section is formed, the sliding head (103) is arranged on the I-shaped track (102), the sliding head (103) is combined by the sliding heads (103) of the two half blocks, the sliding heads are locked and fixed on the track through the two bolts, the pulleys (103 a) are of movable rotation structures, the sliding heads (103) slide on the I-shaped track (102), the sliding heads (103 c) are further provided with bearing plates (103 c), the sliding gauges are placed at stable positions, measuring errors caused by uneven cross sections are avoided, and when the sliding heads (103) are adjusted to the positions of the sliding heads (103) which need to be adjusted, and the sliding gauges can move axially and move stably.
The adjustment quantity of each fulcrum of the opening value is calculated and eliminated by adopting the following formula:
wherein b is the elevation value of the front foot of the motor, a is the opening value, Z is the distance between the rear foot of the motor and the coupler, and D is the diameter of the coupler;
the final adjustment quantity of each fulcrum when the height difference between the motor and the water pump is eliminated by calculation adopts the following formula:
wherein D is the diameter of the coupler; y is the distance between the front foot of the motor and the coupler; z is the distance between the rear foot of the motor and the coupler; a is a lower opening value; b, raising the front foot of the motor; c is a higher value of the water pump than the motor; d is a coupler lifting value when the rear foot of the motor is lifted and the lower opening value a is eliminated;
the motor is adjusted by taking the water pump as a reference;
judging whether the standard is met, and if the standard is not within the specified range, repeating the steps.
2. The method for quickly calculating the center data of the horizontal water pump according to claim 1, wherein: the fixing ring (101) further comprises a plug (101 a), an inserting hole (101 b) and a locking piece (101 c), wherein the plug (101 a) and the inserting hole (101 b) are respectively arranged on contact surfaces of the two half fixing rings (101) in a clamping fit mode, and the locking piece (101 c) is arranged below a section, so that the two fixing rings (101) are fixed together through bolts.
3. The method for quickly calculating the center data of the horizontal water pump according to claim 2, wherein: the sliding head (103) is further provided with a pulley (103 a), a pressing bolt (103 b) and a bearing plate (103 c), the pressing bolt (103 b) is arranged in the middle of the sliding head (103), the pulley (103 a) is arranged at four corners of the sliding head (103), and the bearing plate (103 c) is arranged above the sliding head (103).
4. A method for rapidly calculating center data of a horizontal water pump as claimed in claim 3, wherein: the sliding head (103) is divided into two halves from the middle and is connected together through bolts, and a bolt hole is formed in the middle of the connecting position.
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| CN215598302U (en) * | 2021-09-18 | 2022-01-21 | 大唐山东电力检修运营有限公司 | Centering device for small pump coupler |
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| US20070044337A1 (en) * | 2005-08-26 | 2007-03-01 | Southern Nuclear Operating Company, Inc. | Assembly, method and system for aligning a driver to a pump |
| CN107036512A (en) * | 2017-05-19 | 2017-08-11 | 国网天津市电力公司 | A kind of computational methods of shaft coupling alignment |
| CN208333349U (en) * | 2018-07-03 | 2019-01-04 | 三门核电有限公司 | One kind pumping shaft coupling centering outer circle deviation measuring tool for large-scale vertical |
| CN110455164A (en) * | 2019-07-08 | 2019-11-15 | 福建福清核电有限公司 | A kind of centering method of adjustment of horizontal pump |
| CN210426397U (en) * | 2019-10-29 | 2020-04-28 | 莱芜钢铁集团有限公司 | Dial indicator adjusting base for narrow space |
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