CN111953151A - All-round type electric barring instrument based on large-scale vertical circulating pump - Google Patents
All-round type electric barring instrument based on large-scale vertical circulating pump Download PDFInfo
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- CN111953151A CN111953151A CN202010874199.6A CN202010874199A CN111953151A CN 111953151 A CN111953151 A CN 111953151A CN 202010874199 A CN202010874199 A CN 202010874199A CN 111953151 A CN111953151 A CN 111953151A
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- Prior art keywords
- gear
- speed reducing
- reducing mechanism
- stage speed
- motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses an all-round electric barring tool based on a large vertical type circulating pump, which is characterized by comprising a barring tool motor, a reduction gearbox, a worm shaft (3), a worm wheel (4), a transition gear (2), a transmission shaft (8) and a second gear (5) which are arranged in the reduction gearbox, so that a first-stage speed reducing mechanism, a second-stage speed reducing mechanism and a third-stage speed reducing mechanism are formed. The invention has simple structure and convenient realization, achieves the effects of labor saving, quick effect and labor saving, and can easily complete the whole turning, detection and correction work of the pump motor shaft system by maintainers in about three days, thereby achieving the three aims of labor saving, construction period advancing and cost saving and increasing.
Description
Technical Field
The invention belongs to the technical field of large vertical pump maintenance in power plants, and particularly relates to an all-round electric barring tool based on a large vertical pump.
Background
A large vertical circulating pump is an important auxiliary machine device of a thermal power plant, a medium needs to be overhauled periodically, and after the overhaul is finished, a motor is assembled.
The vertical type circulating pump motor is assembled and has a motor rotor turning process. Namely: the method comprises the steps of rotating a rotor in a circle, detecting technical data of a motor in a rotating state, adjusting movable and static components inside the motor according to the detected data, and accordingly correcting the levelness, the verticality, the concentricity and other items of the electric rotor, wherein the process and quality requirements of the (detection) and correction items are described in detail in a motor factory in an 'operation specification'.
The electric rotor measurement and calibration process is high in accuracy, and errors are as follows: within 0.02 mm/m; the number of the measuring points is more, 8 values are needed for 1 circle of the measuring points, namely the disc rotates for 1 circle, the electric rotor needs to start and stop for 8 times respectively, and the distance between the measuring points is 45 degrees.
In the prior art, the jigger tools on the market are all vertical, and the structure form of the jigger tools causes that the electric rotor cannot detect data and adjust the electric rotor in rotation, so that the electric rotor can only be coiled by manual labor (12 people) to detect and correct the electric rotor.
Because the large vertical motor rotor body is large, heavy, and the dead weight static friction force is large, the disk rotor can be rotated in a 'sudden impact' state only by integrating the violent force and overcoming the dead weight static friction force of the motor rotor when the disk rotor is manually pushed every time, and then the disk rotor can be immediately pulled back by counter force to overcome the inertia force of the rotor 'sudden impact' rotation to exceed the position of a required measuring point, particularly the position of the measuring point at 45-degree intervals, and the large vertical motor rotor mainly has the following defects: the labor is too much, the efficiency is low, and the construction period is long.
Disclosure of Invention
The invention aims to solve the problems and provides a universal electric barring tool based on a large vertical circulating pump, which is simple in structure and convenient to implement, so that all barring, detection and correction process items of electric rotors can be performed, and backward and heavy manual labor is thoroughly eliminated for barring the electric motor rotors for electric rotor detection and correction.
The purpose of the invention is realized by the following technical scheme:
the universal electric barring tool based on the large vertical type circulating pump comprises a barring tool motor, a reduction gearbox, a worm shaft, a worm wheel, a transition gear, a transmission shaft and a second gear, wherein the worm shaft, the worm wheel, the transition gear, the transmission shaft and the second gear are arranged in the reduction gearbox, and therefore a first-stage speed reducing mechanism, a second-stage speed reducing mechanism and a third-stage speed reducing mechanism are formed.
Furthermore, the first-stage speed reducing mechanism comprises a gear and a transition gear which are arranged on the turning tool motor, the gear and the transition gear are meshed to form the first-stage speed reducing mechanism, and the speed reducing ratio of the first-stage speed reducing mechanism is R1.
Further, the second-stage speed reducing mechanism comprises a worm wheel and a worm shaft, the worm wheel is meshed with the worm shaft to form the second-stage speed reducing mechanism, and the speed reducing ratio of the second-stage speed reducing mechanism is R2; the worm wheel is arranged on the transmission shaft.
Further, the third-stage speed reducing mechanism comprises a first gear and a second gear which are meshed to form the third-stage speed reducing mechanism, and the speed reducing ratio of the third-stage speed reducing mechanism is R3; the first gear is located on a main shaft of the pump motor, and the second gear is arranged on the transmission shaft.
Further, the total reduction ratio R = R1xR2xR3 of the all-purpose electric barring tool is that the rotating speed after the three-level speed reduction is the rotating speed N of the all-purpose electric barring toolDish，NDish=NElectric machine/R=NFirst gearWherein N isElectric machineIndicating the turning gear motor speed, NFirst gearIndicates the rotational speed of the first gear (6).
The base plate is used for bearing all-round electric jigger tool components, and the base plate is fixed in a plane screw hole of a shell of a stator of the pump motor by adopting three bolts.
Compared with the prior art, the invention has the beneficial effects that:
(1) by adopting the invention, the speed of the electric rotor disc is 0.5r/min, and the accuracy of the measured value is not influenced by oscillation of the electric rotor due to slow start and stable disc rotation.
(2) By adopting the invention, the electric rotor can be placed with the image combination level gauge to detect the horizontal deviation of the electric rotor, and related components can be rapidly adjusted at any time during the disk measurement, thereby rapidly finishing the levelness correction of the electric rotor.
(3) By adopting the invention, the electric rotor can be hoisted, and related parts in the motor can be exchanged or adjusted, thereby conveniently and rapidly correcting the verticality and the concentricity of the electric rotor and aligning the center of the back wheel.
(4) The invention has simple structure and convenient realization, achieves the effects of labor saving, quick effect and labor saving, and can easily complete the whole turning, detection and correction work of the pump motor shaft system by maintainers in about three days, thereby achieving the three aims of labor saving, construction period advancing and cost saving and increasing.
Drawings
Fig. 1 is a first structural schematic diagram of the present invention.
Fig. 2 is a second structural schematic diagram of the present invention.
Description of reference numerals: 1-a turning tool motor gear, 2-a transition gear, 3-a worm shaft, 4-a worm gear, 5-a second gear, 6-a first gear, 7-a pump-following motor main shaft, 8-a transmission shaft, 9-a reduction box, 10-a bottom plate, 11-a pump-following motor stator shell plane and 12-a turning tool motor base block.
Detailed Description
In order that those skilled in the art will more clearly understand and appreciate the present invention, the following detailed description of the present invention is provided in conjunction with the examples. It should be understood that the following specific embodiments are only used for explaining the present invention, and it is convenient to understand that the technical solutions provided by the present invention are not limited to the technical solutions provided by the following embodiments, and the technical solutions provided by the embodiments should not limit the protection scope of the present invention.
As shown in fig. 1 and 2, the present embodiment provides an all-round electric jigger tool based on a large vertical type circulating pump, and aims to solve the problems of fatigue, low efficiency, and long construction period in the prior art. The universal electric barring tool mainly comprises a barring tool motor, a reduction gearbox, a worm shaft, a transmission shaft, a first-stage speed reducing mechanism, a second-stage speed reducing mechanism and a third-stage speed reducing mechanism, wherein the worm shaft, the transmission shaft and the first-stage speed reducing mechanism are arranged in the reduction gearbox.
The structure of each speed reducing mechanism is as follows:
the first-stage speed reducing mechanism comprises a gear and a transition gear which are arranged on a turning tool motor, the gear and the transition gear are meshed to form the first-stage speed reducing mechanism, and the speed reducing ratio of the first-stage speed reducing mechanism is R1.
The second-stage speed reducing mechanism comprises a worm wheel and a worm shaft, the worm wheel and the worm shaft are meshed to form the second-stage speed reducing mechanism, and the speed reducing ratio of the second-stage speed reducing mechanism is R2; the worm wheel is arranged on the transmission shaft.
The third-stage speed reducing mechanism comprises a first gear and a second gear which are meshed to form the third-stage speed reducing mechanism, and the speed reducing ratio of the third-stage speed reducing mechanism is R3; the first gear is located on a main shaft of the pump motor, and the second gear is arranged on the transmission shaft. The first gear is a large module big gear, and the second gear is a large module small gear.
Based on the three-level speed reducing mechanism, the total speed reducing ratio R = R1xR2xR3 of the all-round electric barring gear is realized, and the three-level speed reducing mechanism passes throughThe reduced rotating speed is the rotating speed N of the all-purpose electric barring toolDish，NDish=NElectric machine/R=NFirst gearWherein N isElectric machineIndicating the turning gear motor speed, NFirst gearIndicates the rotational speed of the first gear (6).
All parts are welded and fixed on a high-strength bottom plate to be an integral bottom plate, the bottom plate is fixed in a plane screw hole of a stator shell of a circulating pump motor by three bolts, and therefore the turning tool is arranged in place, and the turning tool has the advantages that: the jigger tool can be mounted and dismounted in place or lifted out only by mounting and dismounting three bolts.
The embodiment provides a process for assembling and using an all-purpose jigger tool on site, which specifically comprises the following steps:
(1) the first gear (big module big gear) is fixed on the main shaft (or rotor thrust head) of the pump motor by bolts.
(2) And fixing the turning tool bottom plate on the surface of the shell of the stator of the pump motor by using bolts.
(3) The reduction gearbox is placed on the bottom plate, and a second gear (a large-module small gear) in the reduction gearbox is inserted into a first gear (a large-module large gear) to enable the two gears to be meshed.
(4) The turning tool motor is placed on the bottom plate, and then the motor gear is inserted into the transition gear on the worm shaft of the reduction gearbox, so that the two gears are meshed.
(5) The base of the reduction box and the motor bottom block of the turning tool are welded on the thick bottom plate surface, so that the turning tool is of an integral structure.
(6) After the welding operation is finished, all the transmission members are checked and finely adjusted to ensure that the transmission members are correctly engaged.
(7) The turning tool motor is connected with a wire and is respectively connected with a power supply and a starting operation box.
After the steps are completed, the all-round electric barring tool can sufficiently display the advantages of the all-round electric barring tool, can thoroughly get rid of the fact that the electric rotor is suspended by manual labor, and achieves the three aims of saving labor and reducing personnel, shortening construction period and saving cost.
The above description is the preferred embodiment of the present invention. It should be noted that, the skilled in the art can make several modifications without departing from the design principle and technical scheme of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (6)
1. The universal electric barring tool based on the large vertical type circulating pump is characterized by comprising a barring tool motor, a reduction gearbox, a worm shaft (3), a transmission shaft (8), a first-stage speed reducing mechanism, a second-stage speed reducing mechanism and a third-stage speed reducing mechanism, wherein the worm shaft (3), the transmission shaft and the first-stage speed reducing mechanism are arranged in the reduction gearbox; the exposed part of the worm shaft (3) relative to the reduction box is provided with a transition gear (2).
2. The versatile electric barring tool based on large vertical type pump according to claim 1 wherein: the first-stage speed reducing mechanism comprises a turning tool motor gear (1) and a transition gear (2), wherein the turning tool motor gear (1) and the transition gear (2) are meshed to form the first-stage speed reducing mechanism, and the speed reducing ratio of the first-stage speed reducing mechanism is R1.
3. The versatile electric barring tool based on large vertical type pump according to claim 2, characterized in that: the second-stage speed reducing mechanism comprises a worm wheel (4) and a worm shaft (3), the worm wheel (4) and the worm shaft are meshed to form the second-stage speed reducing mechanism, and the speed reducing ratio of the second-stage speed reducing mechanism is R2; the worm wheel (4) is arranged on the transmission shaft (8).
4. The versatile electric barring tool based on large vertical type pump according to claim 3 wherein: the third-stage speed reducing mechanism comprises a first gear (6) and a second gear (5), which are meshed to form the third-stage speed reducing mechanism, and the speed reducing ratio of the third-stage speed reducing mechanism is R3; the first gear (6) is located on a main shaft (7) of the pump motor, and the second gear (5) is arranged on the transmission shaft (8).
5. The large vertical pump-based all-round electric jigger tool according to any one of claims 1 to 4, wherein: the total reduction ratio of the all-round electric barring tool is R = R1xR2xR3, and the rotating speed after three-level speed reduction is the rotating speed N of the all-round electric barring toolDish，NDish=NElectric machine/R=NFirst gearWherein N isElectric machineIndicating the turning gear motor speed, NFirst gearIndicates the rotational speed of the first gear (6).
6. The versatile electric barring tool based on large vertical type pump according to claim 5 is characterized in that: the electric barring gear is characterized by further comprising a bottom plate (10) used for bearing all-round electric barring gear components, wherein the bottom plate (10) is fixed in a plane screw hole of a shell of a stator of the pump motor through three bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874199.6A CN111953151A (en) | 2020-08-27 | 2020-08-27 | All-round type electric barring instrument based on large-scale vertical circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874199.6A CN111953151A (en) | 2020-08-27 | 2020-08-27 | All-round type electric barring instrument based on large-scale vertical circulating pump |
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| Publication Number | Publication Date |
|---|---|
| CN111953151A true CN111953151A (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010874199.6A Pending CN111953151A (en) | 2020-08-27 | 2020-08-27 | All-round type electric barring instrument based on large-scale vertical circulating pump |
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| CN (1) | CN111953151A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114430214A (en) * | 2021-12-22 | 2022-05-03 | 威乐(中国)水泵系统有限公司 | Barring gear and have water pump of barring gear |
-
2020
- 2020-08-27 CN CN202010874199.6A patent/CN111953151A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114430214A (en) * | 2021-12-22 | 2022-05-03 | 威乐(中国)水泵系统有限公司 | Barring gear and have water pump of barring gear |
| CN114430214B (en) * | 2021-12-22 | 2024-03-15 | 威乐(中国)水泵系统有限公司 | Jigger device and water pump with jigger device |
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