CN111267041A - Roots compressor bearing seat dismounting device for nuclear power station and dismounting method thereof - Google Patents
Roots compressor bearing seat dismounting device for nuclear power station and dismounting method thereof Download PDFInfo
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- CN111267041A CN111267041A CN202010175164.3A CN202010175164A CN111267041A CN 111267041 A CN111267041 A CN 111267041A CN 202010175164 A CN202010175164 A CN 202010175164A CN 111267041 A CN111267041 A CN 111267041A
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- bearing
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- roots compressor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
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- Engineering & Computer Science (AREA)
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention belongs to the technical field of nuclear power station compressor bearing dismounting, and particularly relates to a roots compressor bearing seat dismounting device for a nuclear power station and a dismounting method thereof, wherein the dismounting method comprises the following steps: take-out device and synchronizer, the take-out device includes: the device comprises a support, a thrust screw arranged in the middle of the support and fastening screws arranged on two sides of the support; the synchronization device includes: the worm gear is arranged at the input end of the driving shaft and meshed with the worm, the fastening sleeve is arranged at the output end of the driving shaft, one end of the worm is arranged above the inside of the transmission case, and the other end of the worm is arranged outside the transmission case; and the thrust screw on the taking-out device is tightly matched and connected with the fastening sleeve on the synchronizing device.
Description
Technical Field
The invention belongs to the technical field of nuclear power station compressor bearing dismounting, and particularly relates to a device and a method for dismounting a bearing seat of a roots compressor for a nuclear power station.
Background
28 Roots compressors are arranged in the first project of a certain nuclear power plant and are mainly used for providing power for a radioactive gas sampling, purifying and exhausting system. When the roots compressor that has used at present breaks down and overhauls, involve a comparatively complicated and very important maintenance process, correct, the quick dismantlement of compressor bearing frame promptly. Because the bearing seat needs to be simultaneously forced from the left end and the right end and kept horizontal when the bearing seat is normally disassembled, the bearing seat is slowly and stably disassembled, the bearing seat is easily stressed unevenly by manual hammering, heavy object impact and other methods, the bearing seat is deflected and clamped, the disassembling difficulty is increased, the working efficiency is reduced, and the sealing surface of a bearing end cover and surrounding equipment are easily damaged.
Therefore, it is necessary to design an efficient and safe roots compressor bearing seat dismounting device and a dismounting method thereof to solve the above technical problems.
Disclosure of Invention
The invention aims to design a bearing seat dismounting device and a dismounting method of a Roots compressor for a nuclear power station, which are used for effectively solving the technical problems of difficulty in dismounting a bearing seat, complex dismounting process and low safety.
The technical scheme of the invention is as follows:
a kind of nuclear power station uses the bearing bracket dismounting device of the Roots compressor, including: take-out device and synchronizer, the take-out device includes: the device comprises a support 1, a thrust screw 2 arranged in the middle of the support 1 and fastening screws 3 arranged on two sides of the support 1; the synchronization device includes: the worm gear type transmission device comprises a transmission case 4, a worm 6, a driving shaft 12 arranged below the inside of the transmission case, a worm wheel 9 arranged at the input end of the driving shaft 12 and meshed with the worm 6, and a fastening sleeve 13 arranged at the output end of the driving shaft 12, wherein one end of the worm 6 is arranged above the inside of the transmission case 4, and the other end of the worm 6 is arranged outside the transmission case 4; the thrust screw 2 on the taking-out device is tightly matched and connected with the fastening sleeve 13 on the synchronous device.
A threaded hole is formed in the middle of the support 1, the thrust screw 2 is provided with an external thread, and the thrust screw 2 is in threaded connection with the middle of the support 1; and the bottom of the fastening screw rod 3 is provided with an external thread which is used for being matched with a threaded hole on the bearing seat to realize connection.
The middle position connecting end of the thrust screw rod 2 and the support 1 is the input end of the thrust screw rod 2, and the input end of the thrust screw rod 2 is in a hexagonal shape.
The transmission case 4 is also provided with a transmission bearing cover plate 14; the output end of the driving shaft 12 is provided with external threads, the upper end of the fastening sleeve 13 is provided with internal threads, and the output end of the driving shaft 12 is connected with the upper end of the fastening sleeve 13 through threads.
Both ends of the worm 6 are provided with driving bearings 5, and driving bearing cover plates 16 are further arranged on the driving bearings 5; the driving bearing 5 is fixed through a driving bearing cover plate 16; a driving side bearing 7 and a non-driving side bearing 11 are respectively arranged at the upper end and the lower end of the worm wheel 9, a driving side shaft sleeve 8 is further arranged between the driving side bearing 7 and the upper end of the worm wheel 9, and the driving side bearing 7 is fixed through the driving side shaft sleeve 8.
A non-drive side shaft sleeve 10 is also arranged between the non-drive side bearing 11 and the lower end of the worm wheel 9; the non-driving side bearing 11 is fixed through a non-driving side shaft sleeve 10 and a transmission bearing cover plate 14; and the transmission bearing cover plate 14 and the driving bearing cover plate 16 are provided with fastening bolts 15.
One end of the worm 6 arranged outside the transmission case 4 is an input end, and the input end of the worm 6 is in a hexagonal shape; the lower part of the fastening sleeve 13 is an output end, and the output end of the fastening sleeve 13 is in a hexagon socket shape.
The method for dismounting the bearing seat dismounting device of the roots compressor for the nuclear power station comprises the following steps:
the method comprises the following steps: when the support is used, the thrust screw 2 is adjusted to a proper position, the screw thread is screwed in along the threaded hole on the support 1, the thrust screw 2 is ensured to be contacted with a rotating shaft of the Roots compressor, and meanwhile, the fastening screw 3 is screwed through the screw thread, so that the support 1 and the fastening screw 3 are connected with a bearing seat of the Roots compressor;
step two: when dismantling the bearing frame, with the nut on the rotatory worm 6 of spanner, with the help of the worm gear transmission, along worm wheel 9, drive shaft 12, the even revolving force of fastening sleeve 13 output, and then the nut on the rotatory thrust screw rod 2 for the roots compressor bearing frame produces equivalent evenly, and perpendicular ascending power finally realizes dismantling of bearing frame.
The invention has the beneficial effects that: the bearing seat dismounting device for the Roots compressor for the nuclear power station is simple in structure, time-saving, labor-saving and high in working efficiency, can ensure that the whole bearing seat is kept horizontal in the dismounting process of the bearing seat, reduces the probability of clamping caused by deflection of the bearing seat, cannot damage the sealing surface of the bearing seat and surrounding equipment, and can protect the sealing surface of a bearing end cover and the surrounding equipment from being damaged;
the worm transmission mechanism can effectively solve the problem that the bearing seat is difficult to disassemble, ensures uniform stress during disassembly and has high working efficiency; in addition, the disassembly method of the Roots compressor bearing seat disassembly device for the nuclear power station is easy to operate by workers.
Drawings
FIG. 1 is a schematic overall structure diagram of a Roots compressor bearing block dismounting device for a nuclear power station according to the present invention;
FIG. 2 is a front view of a synchronizer of a bearing seat dismounting device of a Roots compressor for a nuclear power station according to the invention;
fig. 3 is a side view of the synchronous device of the roots compressor bearing seat dismounting device for the nuclear power station in fig. 2.
Wherein: 1. a support; 2. a thrust screw; 3. fastening a screw rod; 4. a transmission case; 5. a drive bearing; 6. a worm; 7. a drive side bearing; 8. a drive-side shaft sleeve; 9. a worm gear; 10. a non-drive side shaft sleeve; 11. a non-drive side bearing; 12. a drive shaft; 13. fastening the sleeve; 14. a drive bearing cover plate; 15. fastening a bolt; 16. the bearing cover plate is driven.
Detailed Description
The invention will be further described with reference to the following figures and examples:
a kind of nuclear power station uses the bearing bracket dismounting device of the Roots compressor, including: take-out device and synchronizer, the take-out device includes: the device comprises a support 1, a thrust screw 2 arranged in the middle of the support 1 and fastening screws 3 arranged on two sides of the support 1; the synchronization device includes: the worm gear type transmission device comprises a transmission case 4, a worm 6, a driving shaft 12 arranged below the inside of the transmission case, a worm wheel 9 arranged at the input end of the driving shaft 12 and meshed with the worm 6, and a fastening sleeve 13 arranged at the output end of the driving shaft 12, wherein one end of the worm 6 is arranged above the inside of the transmission case 4, and the other end of the worm 6 is arranged outside the transmission case 4; the thrust screw 2 on the taking-out device is tightly matched and connected with the fastening sleeve 13 on the synchronous device.
A threaded hole is formed in the middle of the support 1, the thrust screw 2 is provided with an external thread, and the thrust screw 2 is in threaded connection with the middle of the support 1; and the bottom of the fastening screw rod 3 is provided with an external thread which is used for being matched with a threaded hole on the bearing seat to realize connection.
The middle position connecting end of the thrust screw rod 2 and the support 1 is the input end of the thrust screw rod 2, and the input end of the thrust screw rod 2 is in a hexagonal shape.
The transmission case 4 is also provided with a transmission bearing cover plate 14; the output end of the driving shaft 12 is provided with external threads, the upper end of the fastening sleeve 13 is provided with internal threads, and the output end of the driving shaft 12 is connected with the upper end of the fastening sleeve 13 through threads.
Both ends of the worm 6 are provided with driving bearings 5, and driving bearing cover plates 16 are further arranged on the driving bearings 5; the driving bearing 5 is fixed through a driving bearing cover plate 16; a driving side bearing 7 and a non-driving side bearing 11 are respectively arranged at the upper end and the lower end of the worm wheel 9, a driving side shaft sleeve 8 is further arranged between the driving side bearing 7 and the upper end of the worm wheel 9, and the driving side bearing 7 is fixed through the driving side shaft sleeve 8.
A non-drive side shaft sleeve 10 is also arranged between the non-drive side bearing 11 and the lower end of the worm wheel 9; the non-driving side bearing 11 is fixed through a non-driving side shaft sleeve 10 and a transmission bearing cover plate 14; and the transmission bearing cover plate 14 and the driving bearing cover plate 16 are provided with fastening bolts 15.
One end of the worm 6 arranged outside the transmission case 4 is an input end, and the input end of the worm 6 is in a hexagonal shape; the lower part of the fastening sleeve 13 is an output end, and the output end of the fastening sleeve 13 is in a hexagon socket shape. The output end of the fastening sleeve 13 is tightly matched with the input end of the thrust screw rod 2.
The method for dismounting the bearing seat dismounting device of the roots compressor for the nuclear power station comprises the following steps:
the method comprises the following steps: when the support is used, the thrust screw 2 is adjusted to a proper position, the screw thread is screwed in along the threaded hole on the support 1, the thrust screw 2 is ensured to be contacted with a rotating shaft of the Roots compressor, and meanwhile, the fastening screw 3 is screwed through the screw thread, so that the support 1 and the fastening screw 3 are connected with a bearing seat of the Roots compressor;
step two: when dismantling the bearing frame, with the nut on the rotatory worm 6 of spanner, with the help of the worm gear transmission, along worm wheel 9, drive shaft 12, the even revolving force of fastening sleeve 13 output, and then the nut on the rotatory thrust screw rod 2 for the roots compressor bearing frame produces equivalent evenly, and perpendicular ascending power finally realizes dismantling of bearing frame.
The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (8)
1. The utility model provides a roots compressor bearing frame dismounting device for nuclear power station which characterized in that includes: take-out device and synchronizer, the take-out device includes: the device comprises a support (1), a thrust screw (2) arranged in the middle of the support (1) and fastening screws (3) arranged on two sides of the support (1); the synchronization device includes: the worm gear mechanism comprises a transmission case (4), a worm (6), a driving shaft (12) arranged below the inside of the transmission case, a worm wheel (9) arranged at the input end of the driving shaft (12) and meshed with the worm (6), and a fastening sleeve (13) arranged at the output end of the driving shaft (12), wherein one end of the worm (6) is arranged above the inside of the transmission case (4), and the other end of the worm (6) is arranged outside the transmission case (4); and a thrust screw (2) on the taking-out device is tightly matched and connected with a fastening sleeve (13) on the synchronizing device.
2. The bearing seat dismounting device of the roots compressor for the nuclear power station as claimed in claim 1, wherein: a threaded hole is formed in the middle of the support (1), the thrust screw (2) is provided with an external thread, and the thrust screw (2) is in threaded connection with the middle of the support (1); and the bottom of the fastening screw rod (3) is provided with an external thread which is used for being matched with a threaded hole in the bearing seat to realize connection.
3. The bearing seat dismounting device of the roots compressor for the nuclear power station as claimed in claim 2, wherein: the middle position connecting end of the thrust screw rod (2) and the support (1) is the input end of the thrust screw rod (2), and the input end of the thrust screw rod (2) is in a hexagonal shape.
4. The bearing seat dismounting device of the roots compressor for the nuclear power station as claimed in claim 1, wherein: the transmission case (4) is also provided with a transmission bearing cover plate (14); the output end of the driving shaft (12) is provided with an external thread, the upper end of the fastening sleeve (13) is provided with an internal thread, and the output end of the driving shaft (12) is in threaded connection with the upper end of the fastening sleeve (13).
5. The bearing seat dismounting device of the roots compressor for the nuclear power station as claimed in claim 4, wherein: both ends of the worm (6) are provided with driving bearings (5), and driving bearing cover plates (16) are further arranged on the driving bearings (5); the driving bearing (5) is fixed through a driving bearing cover plate (16); the upper end and the lower end of the worm wheel (9) are respectively provided with a driving side bearing (7) and a non-driving side bearing (11), a driving side shaft sleeve (8) is further arranged between the driving side bearing (7) and the upper end of the worm wheel (9), and the driving side bearing (7) is fixed through the driving side shaft sleeve (8).
6. The bearing seat dismounting device of the roots compressor for the nuclear power station as claimed in claim 5, wherein: a non-driving side shaft sleeve (10) is arranged between the non-driving side bearing (11) and the lower end of the worm wheel (9); the non-driving side bearing (11) is fixed through a non-driving side shaft sleeve (10) and a transmission bearing cover plate (14); and fastening bolts (15) are arranged on the transmission bearing cover plate (14) and the driving bearing cover plate (16).
7. The bearing seat dismounting device of the roots compressor for the nuclear power station as claimed in claim 6, wherein: one end of the worm (6) arranged outside the transmission case (4) is an input end, and the input end of the worm (6) is in a hexagonal shape; the lower part of the fastening sleeve (13) is an output end, and the output end of the fastening sleeve (13) is in a hexagon socket shape.
8. The disassembly method of a roots compressor bearing housing disassembly apparatus for a nuclear power plant as set forth in any one of claims 1 to 7, comprising the steps of:
the method comprises the following steps: when the connecting device is used, the thrust screw (2) is adjusted to a proper position, the screw thread is screwed in along the threaded hole on the support (1), the thrust screw (2) is ensured to be contacted with a rotating shaft of the Roots compressor, and meanwhile, the fastening screw (3) is screwed in through the screw thread, so that the support (1) and the fastening screw (3) are connected with a bearing seat of the Roots compressor;
step two: when dismantling the bearing frame, with the nut on the rotatory worm (6) of spanner, with the help of the worm gear transmission, along worm wheel (9), drive shaft (12), fastening sleeve (13) output even revolving force, and then the nut on the rotatory thrust screw rod (2) for the roots compressor bearing frame produces equivalent evenly, and perpendicular ascending power finally realizes the dismantlement of bearing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010175164.3A CN111267041A (en) | 2020-03-13 | 2020-03-13 | Roots compressor bearing seat dismounting device for nuclear power station and dismounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010175164.3A CN111267041A (en) | 2020-03-13 | 2020-03-13 | Roots compressor bearing seat dismounting device for nuclear power station and dismounting method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111267041A true CN111267041A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010175164.3A Pending CN111267041A (en) | 2020-03-13 | 2020-03-13 | Roots compressor bearing seat dismounting device for nuclear power station and dismounting method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010020323A1 (en) * | 2000-03-13 | 2001-09-13 | Horst Klann | Device for loosening a screw seated tightly in a mounting hole of a bearing eye or the like |
| JP2007044822A (en) * | 2005-08-10 | 2007-02-22 | Mitsubishi Fuso Truck & Bus Corp | Inner race removing device of bearing |
| DE202007003026U1 (en) * | 2007-03-01 | 2007-08-09 | Hu, Chih Kuo | Bearing assembling and disassembling device, has drive with threaded spindle that comprises drive element for tool, and that is guided through base body, where body exhibits semicircular accommodating area to accommodate rotating body |
| CN204414010U (en) * | 2015-01-14 | 2015-06-24 | 宁波市鄞州东宁工具有限公司 | Fast operating effort-saving drawbench |
| CN206780296U (en) * | 2017-06-08 | 2017-12-22 | 台州职业技术学院 | A kind of twin worm draws horse |
| CN208729685U (en) * | 2018-09-13 | 2019-04-12 | 三门核电有限公司 | A kind of roots blower bearing extractor |
-
2020
- 2020-03-13 CN CN202010175164.3A patent/CN111267041A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010020323A1 (en) * | 2000-03-13 | 2001-09-13 | Horst Klann | Device for loosening a screw seated tightly in a mounting hole of a bearing eye or the like |
| JP2007044822A (en) * | 2005-08-10 | 2007-02-22 | Mitsubishi Fuso Truck & Bus Corp | Inner race removing device of bearing |
| DE202007003026U1 (en) * | 2007-03-01 | 2007-08-09 | Hu, Chih Kuo | Bearing assembling and disassembling device, has drive with threaded spindle that comprises drive element for tool, and that is guided through base body, where body exhibits semicircular accommodating area to accommodate rotating body |
| CN204414010U (en) * | 2015-01-14 | 2015-06-24 | 宁波市鄞州东宁工具有限公司 | Fast operating effort-saving drawbench |
| CN206780296U (en) * | 2017-06-08 | 2017-12-22 | 台州职业技术学院 | A kind of twin worm draws horse |
| CN208729685U (en) * | 2018-09-13 | 2019-04-12 | 三门核电有限公司 | A kind of roots blower bearing extractor |
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