CN210566143U - Large-scale vertical mixed-flow pump speed reducer barring gear - Google Patents
Large-scale vertical mixed-flow pump speed reducer barring gear Download PDFInfo
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- CN210566143U CN210566143U CN201921646354.8U CN201921646354U CN210566143U CN 210566143 U CN210566143 U CN 210566143U CN 201921646354 U CN201921646354 U CN 201921646354U CN 210566143 U CN210566143 U CN 210566143U
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Abstract
The utility model discloses a large-scale vertical mixed flow pump speed reducer barring gear. This large-scale vertical mixed-flow pump speed reducer barring device includes: the jigger base is provided with an upper cavity and a lower cavity, and the lower part of the jigger base is connected with the input flange of the speed reducer; a barring axle assembly, comprising: the deep groove ball bearing is arranged in an upper cavity of the barring machine base; the turning shaft includes: the upper end of the disc shaft is provided with a barring through hole, and the middle part of the disc shaft is provided with a shoulder boss; the connecting disc is arranged at the lower end of the disc shaft and is connected with the input spline sleeve of the speed reducer; the upper end of the turning shaft penetrates through the deep groove ball bearings, the pressing plates are respectively fixed at two ends of the cavity at the upper part of the turning machine base to fasten the deep groove ball bearings, and the driving device is in driving connection with the turning shaft. The turning gear device of the large-scale vertical mixed-flow pump speed reducer can ensure that a pump set operates stably.
Description
Technical Field
The utility model relates to a large-scale vertical mixed-flow pump overhauls the field, especially relates to a large-scale vertical mixed-flow pump speed reducer barring gear.
Background
The CRF circulating water pump for the urban harbor-preventing nuclear power station is a large-scale vertical mixed-flow pump and mainly comprises a motor, a speed reducer, a pump shaft, an impeller and the like, wherein the pump group is a concrete volute pump and needs to be assembled on site.
This pump package speed reducer adopts the power four reposition of redundant personnel herringbone tooth planet one-level transmission, through the spline housing at gearbox top, drives the sun gear rotation with the moment of torsion that the motor transmitted, and the sun gear rotation drives planet wheel rotation and revolution to drive planet carrier and output shaft rotate, finally drive pump shaft and impeller rotation, cool off in order to realize sending the sea water to the condenser.
Because the pump set is assembled on site, the pump set needs to be centered every time when the pump set is installed and the pump set is overhauled to be fully inspected, so that the defects of high vibration of the pump set, abnormal bearing temperature, collision and abrasion of a moving rotor and a static rotor and the like are avoided, and good and accurate centering data of the pump set are very necessary.
In order to improve the centering accuracy of the pump set, when the pump set is installed, the level and the verticality of a pump shaft are required to be adjusted, and after the pump shaft is centered, the position of a speed reducer is adjusted by taking the pump shaft as the center, so that the concentricity of the pump shaft and the speed reducer is guaranteed. In the process of maintenance, the speed reducer needs to be coiled, and accurate centering data can be obtained by reading data of the dial indicator.
The whole weight of the speed reducer is about 30 tons, and the input torque is transmitted to an output shaft after being meshed and transmitted by a gear, so that the shaft transmission of the speed reducer cannot be completed by conventional manual rotation.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a large-scale vertical mixed flow pump speed reducer barring device that simple structure is reasonable, this large-scale vertical mixed flow pump speed reducer barring device can easily use the manpower to carry out the barring to the heavy load speed reducer to obtain excellent centering effect, ensure that the pump package operates steadily.
In order to achieve the above object, the utility model provides a large-scale vertical mixed flow pump speed reducer barring device, include: the jigger base is provided with an upper cavity and a lower cavity, and the lower part of the jigger base is connected with the input flange of the speed reducer; a barring axle assembly, comprising: the deep groove ball bearing is arranged in an upper cavity of the barring machine base; the turning shaft includes: the upper end of the disc shaft is provided with a barring through hole, and the middle part of the disc shaft is provided with a shoulder boss; the connecting disc is arranged at the lower end of the disc shaft and is connected with the input spline sleeve of the speed reducer; the upper end of the turning shaft penetrates through the deep groove ball bearings, the pressing plates are respectively fixed at two ends of the cavity at the upper part of the turning machine base to fasten the deep groove ball bearings, and the driving device is in driving connection with the turning shaft.
In a preferred embodiment, two deep groove ball bearings are arranged and are respectively arranged at the upper part and the lower part of the cavity at the upper part of the barring machine seat; a distance sleeve is arranged between the two deep groove ball bearings.
In a preferred embodiment, the deep groove ball bearing is arranged together with the barring shaft in an interference fit mode, and the deep groove ball bearing is arranged together with the upper cavity of the barring machine base in a clearance fit mode.
In a preferred embodiment, the inner ring of the lower deep groove ball bearing of the upper cavity of the turning machine seat is positioned through the shoulder boss of the turning machine shaft.
In a preferred embodiment, the outer ring of the lower deep groove ball bearing of the upper cavity of the barring machine base is fastened through a pressing plate, the inner ring of the upper deep groove ball bearing of the upper cavity of the barring machine base is fastened through an elastic collar for a shaft, and the outer ring is fastened through the pressing plate.
In a preferred embodiment, an adjusting pad is further arranged between the upper deep groove ball bearing of the upper cavity of the barring machine seat and the pressure plate.
In a preferred embodiment, the pressing plates are respectively fixed at two ends of the upper cavity of the barring machine base through inner hexagonal socket head cap screws to fasten two deep groove ball bearings.
In a preferred embodiment, the driving device is a steel pipe or a motor, and the steel pipe penetrates into the barring through hole of the barring axle and is rotated by manpower; the motor is in driving connection with the barring shaft.
Compared with the prior art, according to the utility model discloses a large-scale vertical mixed flow pump speed reducer barring device has following beneficial effect: the large-scale vertical mixed-flow pump speed reducer barring device can realize manual control of the output speed of the speed reducer, so that good centering and output shaft throw data are obtained, and the center precision is greatly improved. Can design the barring device who adapts to it according to not unidimensional speed reducer interface size, can promote the nature by force.
Drawings
Fig. 1 is a schematic structural diagram of a large-scale vertical mixed-flow pump reducer barring gear according to a first embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1, the specific structure of the turning gear of the large-scale vertical mixed-flow pump reducer according to the preferred embodiment of the present invention includes: barring frame 3, barring axle subassembly and drive arrangement. The barring machine base 3 is connected with the speed reducer input flange 14, the barring axle assembly penetrates through the barring machine base 3 and is connected with the speed reducer input spline sleeve 13, and the speed reducer can be driven to rotate in an output mode by driving a disc axle assembly through the driving device. The turning gear of the large-scale vertical mixed-flow pump reducer is simple in design structure, the turning gear adaptive to the reduction gear can be designed according to the sizes of the interfaces of the reduction gears with different sizes, and the popularization is strong; the turning gear device of the large-scale vertical mixed-flow pump speed reducer does not need special maintenance daily, and only needs to open the pressing plate 8 to add grease (conventional grease LGWA 2) for lubrication when in use regularly.
Specifically, the barring machine base 3 is provided with an upper cavity and a lower cavity, the interface size of an upper input flange 14 of the speed reducer is measured, the lower part of the barring machine base 3 is connected with the input flange 14 of the speed reducer through a hexagon head bolt 1 and a spring washer 2, and an input spline sleeve 13 of the speed reducer extends into the lower cavity to be connected with the barring axle assembly. The upper cavity of the barring machine base 3 is used for mounting a bearing of the barring axle assembly.
The barring axle assembly comprises: the disc axle 10, the deep groove ball bearing 4, the distance sleeve 5, the elastic retainer ring for the axle 7 and the pressure plate 8. Wherein, two deep groove ball bearings 4 are respectively arranged on the upper part and the lower part of the upper cavity of the barring machine base 3; the distance sleeve 5 is arranged between the two deep groove ball bearings 4 and is separated by the distance sleeve 5, and the size of the distance sleeve 5 is determined by the depth of the upper cavity of the barring machine base 3 and the width of the bearing; the disc axle 10 includes: the upper end of the disc shaft is provided with a barring through hole, and the middle part of the disc shaft is provided with a shoulder boss; the connecting disc is arranged at the lower end of the disc shaft and is connected with a speed reducer input spline housing 13 through a hexagonal head bolt 11 and a nut 12. The upper end of the plate shaft is arranged in the two deep groove ball bearings 4 and the distance sleeve 5 in a penetrating mode, and the pressing plates 8 are fixed at the two ends of the upper cavity of the barring machine base 3 respectively and fasten the two deep groove ball bearings 4.
Preferably, the deep groove ball bearing 4 and the turning axle 10 are arranged together in an interference fit manner, and the deep groove ball bearing 4 and the upper cavity of the turning machine base 3 are arranged together in a clearance fit manner (the clearance is 0.02-0.04 mm).
Preferably, the inner ring of the lower deep groove ball bearing 4 of the upper cavity of the barring machine base 3 is positioned through the shoulder boss of the barring axle 10.
Preferably, the outer ring of the lower deep groove ball bearing 4 of the upper cavity of the barring machine base 3 is fastened through a pressing plate 8, the inner ring of the upper deep groove ball bearing 4 of the upper cavity of the barring machine base 3 is fastened through an elastic check ring 7 for a shaft, and the outer ring is fastened through the pressing plate 8.
Preferably, an adjusting pad 6 is further arranged between the upper deep groove ball bearing 4 of the upper cavity of the barring machine base 3 and the pressing plate 8.
Preferably, the pressing plate 8 is respectively fixed at two ends of the cavity at the upper part of the barring machine base 3 through inner hexagonal socket head cap screws 9 to fasten the two deep groove ball bearings 4.
The driving device is a steel pipe or a motor, the steel pipe with proper size, strength and thickness is selected to penetrate into the barring through hole of the disc axle, and the output rotation of the speed reducer can be realized by rotating the disc axle. By using the device, the speed reducer can be driven by only 3-5 persons to rotate the disc axle through the steel pipe, so that manpower and material resources can be greatly saved; the manual coiling speed reducer can realize the manual control of the output speed of the speed reducer, thereby obtaining good centering and output shaft swing data and greatly improving the center precision.
The motor is connected with the barring axle drive, the motor is additionally arranged on the upper portion of the barring axle of the manual barring gear, the manual barring gear can be transformed into an electric barring gear, and the speed of the output rotating speed of the motor can be controlled by designing a set of rotating speed control system so as to meet various requirements on the site.
In addition, the barring device is only limited to the speed reducer, and can be used for other vertical large-scale equipment needing barring, such as a motor, a water turbine and the like, by changing the sizes of the base support and the main shaft output flange.
When the large-scale vertical mixed-flow pump speed reducer barring gear is used:
1. installing the turning gear into a bolt connecting hole at the upper part of an input flange 14 of the speed reducer, and fastening the turning gear through a hexagon head bolt 1 and a spring washer 2;
2. a disc axle 10 is coiled, bolt holes of the disc axle are aligned with bolt holes of a speed reducer input spline housing 13, and the disc axle is fastened through a hexagon head bolt 11 and a nut 12;
3. and a steel pipe with proper size, strength and thickness is selected to penetrate into the barring through hole of the disc axle, and the output rotation of the speed reducer can be realized by rotating the disc axle.
In conclusion, the turning gear of the large-scale vertical mixed-flow pump speed reducer can realize manual control of the output speed of the speed reducer, so that good centering and output shaft swing data are obtained, and the center precision is greatly improved. Can design the barring device who adapts to it according to not unidimensional speed reducer interface size, can promote the nature by force.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (8)
1. The utility model provides a large-scale vertical mixed flow pump speed reducer barring device which characterized in that includes:
the jigger base is provided with an upper cavity and a lower cavity, and the lower part of the jigger base is connected with the input flange of the speed reducer;
a barring axle assembly, comprising: the deep groove ball bearing is arranged in an upper cavity of the barring machine base; the turning shaft includes: the upper end of the disc shaft is provided with a barring through hole, and the middle part of the disc shaft is provided with a shoulder boss; the connecting disc is arranged at the lower end of the disc shaft and is connected with the input spline sleeve of the speed reducer; the upper end of the turning shaft is arranged in the deep groove ball bearings in a penetrating manner, the pressing plates are respectively fixed at two ends of the upper cavity of the turning machine base to fasten the deep groove ball bearings, and
and the driving device is in driving connection with the barring shaft.
2. The turning gear of the large-scale vertical mixed-flow pump reducer as recited in claim 1, wherein the number of the deep groove ball bearings is two, and the two deep groove ball bearings are respectively installed on the upper part and the lower part of the upper cavity of the turning machine base; a distance sleeve is arranged between the two deep groove ball bearings.
3. The turning gear of the large-scale vertical mixed-flow pump reducer as recited in claim 2, wherein the deep groove ball bearing is installed with the turning shaft in an interference fit manner, and the deep groove ball bearing is installed with an upper cavity of the turning machine base in a clearance fit manner.
4. The turning gear of the large-scale vertical mixed-flow pump reducer as recited in claim 1, wherein an inner ring of a lower deep groove ball bearing of an upper cavity of the turning machine base is positioned by a shoulder boss of a turning axle.
5. The turning gear of the large-scale vertical mixed-flow pump reducer as recited in claim 1, wherein an outer ring of a lower deep groove ball bearing of the upper cavity of the turning machine base is fastened through a pressing plate, an inner ring of an upper deep groove ball bearing of the upper cavity of the turning machine base is fastened through an elastic collar for a shaft, and an outer ring is fastened through the pressing plate.
6. The turning gear of the large-scale vertical mixed-flow pump reducer as recited in claim 1, wherein an adjusting pad is further arranged between the upper deep groove ball bearing of the upper cavity of the turning machine base and the pressing plate.
7. The turning gear of the large-scale vertical mixed-flow pump reducer as recited in claim 1, wherein the pressure plate is respectively fixed at two ends of the upper cavity of the turning machine base through hexagon socket head cap screws to fasten two deep groove ball bearings.
8. The turning gear of the large-scale vertical mixed-flow pump reducer as recited in claim 1, wherein the driving device is a steel pipe or a motor, the steel pipe penetrates into a turning through hole of a turning shaft to be rotated by manpower; the motor is in driving connection with the barring shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921646354.8U CN210566143U (en) | 2019-09-29 | 2019-09-29 | Large-scale vertical mixed-flow pump speed reducer barring gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921646354.8U CN210566143U (en) | 2019-09-29 | 2019-09-29 | Large-scale vertical mixed-flow pump speed reducer barring gear |
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| CN210566143U true CN210566143U (en) | 2020-05-19 |
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| CN201921646354.8U Active CN210566143U (en) | 2019-09-29 | 2019-09-29 | Large-scale vertical mixed-flow pump speed reducer barring gear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584687A (en) * | 2021-08-27 | 2021-11-02 | 山东日发纺织机械有限公司 | Manual quick barring mechanism for loom |
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2019
- 2019-09-29 CN CN201921646354.8U patent/CN210566143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584687A (en) * | 2021-08-27 | 2021-11-02 | 山东日发纺织机械有限公司 | Manual quick barring mechanism for loom |
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