CN211332478U - High-temperature high-pressure steam turbine rotor journal grinding equipment - Google Patents
High-temperature high-pressure steam turbine rotor journal grinding equipment Download PDFInfo
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- CN211332478U CN211332478U CN201922282571.XU CN201922282571U CN211332478U CN 211332478 U CN211332478 U CN 211332478U CN 201922282571 U CN201922282571 U CN 201922282571U CN 211332478 U CN211332478 U CN 211332478U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000003739 neck Anatomy 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model belongs to a mechanical equipment's prosthetic devices especially relates to a high temperature high pressure steam turbine rotor axle journal grinding equipment. The technical requirements of quick overhaul of a power plant are met; and different parts of the rotor shaft neck can be conveniently ground. The transmission shaft is driven by a first stepping motor; the first stepping motor rotates to drive the transmission shaft to rotate, the two small chain wheels rotate along with the transmission shaft to drive the long chain to move, the long chain is in a tensioned state, and the shaft rotates along with the long chain; a vertical plate is arranged between the two vertical plates, a second stepping motor drives a screw rod to rotate, and a screw nut sliding block moves forwards or backwards on the screw rod to drive the vertical plate on the sliding block to move forwards and backwards; the vertical plate is further provided with a servo motor, the vertical plate moves back and forth relative to the lead screw, and the grinding wheel bearing seat is driven to move back and forth through the right-angle support and the harness cord, so that the grinding wheel connected with the grinding wheel bearing seat moves along with the grinding wheel bearing seat.
Description
Technical Field
The invention belongs to a repairing device of mechanical equipment, and particularly relates to high-temperature high-pressure steam turbine rotor journal grinding equipment.
Background
With the development of economy, the progress of science and technology and the improvement of labor cost, the repair requirements on large shafts are stricter and stricter.
Especially for various rotors of a steam turbine system and a boiler system of a power plant, because the rotors are arranged in high-temperature and high-pressure cylinders, after the rotors are used for a period of time, the surfaces of shaft necks are abraded and eroded due to reasons of dirty oil and the like, so that the deformation and the roundness are reduced; great potential safety hazard is brought to the operation of the steam turbine, so the weld deposit and grinding repair must be carried out on the defects of the shaft neck.
The existing problems are that for various rotors of a steam turbine system and a boiler system of a power plant, the shaft diameter of the rotor is generally about 300mm-500mm, and because the diameter surface is very large, after surfacing welding, the traditional manual grinding is adopted, so that time and labor are wasted, and the size precision and the position tolerance of a shaft neck are difficult to ensure. Can not reach the standard of safe use after repair.
A patent is filed in 2014 by my company, the application number is 201410251327.6, the patent name is high-temperature and high-pressure turbine rotor shaft diameter repairing equipment, the patent discloses repairing equipment for the rotor shaft diameter of an automobile wheel, manpower and material resources can be reduced, and the technical requirement of quick overhaul of a power plant is met. When the device is used, the rotor can not move and only can be used for fixed-point grinding, and the electric friction on the device can not move freely; there is inconvenience in operation.
Disclosure of Invention
The invention provides high-temperature high-pressure turbine rotor shaft diameter grinding equipment aiming at the defects in the prior art, which is an improvement on high-temperature high-pressure turbine rotor shaft diameter repairing equipment with the application number of 201410251327.6.
The device is suitable for processing and repairing different shaft necks; the high points of welding, scouring and shaft diameter deformation can be quickly ground, the efficiency and precision are greatly improved, the repair period is obviously shortened, and the technical requirements of quick overhaul of a power plant are met; and different parts of the rotor shaft neck can be conveniently ground.
In order to achieve the purpose, the invention adopts the following technical scheme that the device comprises two bent plates, wherein two ends of each bent plate are respectively connected with a roller carrier through a pin shaft, and two rollers are assembled on each roller carrier; it is characterized in that a vertical plate is arranged above each bent plate.
The surface of the rotor shaft is surrounded by two long chains which are respectively arranged at the left side and the right side of the shaft, the long chains are meshed with the small chain wheels, the two small chain wheels are connected through a transmission shaft, two ends of the transmission shaft penetrate through the vertical plate and are connected with the vertical plate through bearings, and the transmission shaft is driven by a first stepping motor; the first stepping motor rotates to drive the transmission shaft to rotate, the two small chain wheels rotate along with the transmission shaft to drive the long chain to move, the long chain is in a tensioned state, and the shaft rotates along with the long chain.
The vertical plate is arranged between the two vertical plates, the vertical plate is arranged on the nut sliding block, the nut sliding block is connected with a lead screw, the lead screw is supported between the two vertical plates through a bearing, and the end part of one end, extending out of the vertical plate, of the lead screw is connected with a second stepping motor through a coupler; the second stepping motor drives the screw rod to rotate, the screw nut sliding block moves forwards or backwards on the screw rod, and the vertical plate on the sliding block is driven to move forwards and backwards.
The vertical plate is also provided with a servo motor, an output shaft of the servo motor is in key connection with one end of a gear sleeve, and one end of a chain wheel shaft is in key connection with the other end of the gear sleeve; the other end of the chain wheel shaft is connected with the large chain wheel through a key, and one end penetrating out of the large chain wheel is pressed by a gear pressing plate and is locked and fixed by a bolt.
The large chain wheel is connected with a small chain wheel through a short chain, the small chain wheel is connected with a grinding wheel shaft, grinding wheels are arranged at two ends of the grinding wheel shaft, the grinding wheel shaft is also provided with a grinding wheel bearing seat, and the grinding wheel shaft penetrates through a bearing of the bearing seat; the bearing block is in threaded connection with one end of a harness cord; the other end of the harness cord penetrates through a right-angle side of a right-angle support, and the penetrating end part is locked by a nut; the other right-angle side of the right-angle support is connected with the vertical plate through a screw.
The vertical plate moves back and forth relative to the lead screw, and the grinding wheel bearing seat is driven to move back and forth through the right-angle support and the harness cord, so that the grinding wheel connected with the grinding wheel bearing seat moves along with the grinding wheel.
Further, the riser is connected with the bent plate detachably.
Furthermore, the end part of the grinding wheel shaft outside the grinding wheel is pressed by a large washer and is locked and fixed by a screw.
Furthermore, the grinding wheel shaft, the grinding wheel chain wheel and the grinding wheel are also provided with shaft check rings.
Compared with the prior art, the invention has the beneficial effects.
The invention is suitable for processing and repairing different shaft diameters, can quickly grind welding high points, scouring high points and shaft diameter deformation high points, greatly improves the efficiency and the precision, obviously shortens the repairing period and is suitable for the technical requirement of quick maintenance of a power plant; and the stepping motor drives the shaft to rotate to a position to be ground, and the vertical plate and the grinding wheel grinding equipment connected with the vertical plate can be driven to move back and forth through the lead screw, so that the purpose of conveniently grinding different parts of the shaft diameter of the rotor is achieved.
Drawings
The invention is further described with reference to the following figures and detailed description. The scope of the invention is not limited to the following expressions.
FIG. 1 is a schematic view of the present invention shaft diameter grinding assembly.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic diagram of a servo motor.
FIG. 4 is a schematic view of the grinding wheel structure of the present invention.
In the figure, 1 is a vertical plate, 2 is a roller, 3 is a first stepping motor, 4 is a small chain wheel, 5 is a rotor shaft, 6 is a grinding wheel bearing seat, 7 is a right-angle support, 8 is a short chain, 9 is a harness cord, 10 is a servo motor, 11 is a lead screw, 12 is a vertical plate, 13 is a transmission shaft, 14 is a grinding wheel, 15 is a second stepping motor, 16 is a large chain wheel, 17 is a gear sleeve, 18 is a long chain, 19 is a gear press plate, 20 is a grinding wheel chain wheel, 21 is a grinding wheel shaft, 22 is a grinding wheel bearing seat, 23 is a large washer, and 24 is a shaft retainer ring.
Detailed Description
As shown in fig. 1-4, the present invention comprises two curved plates, each of which has two ends connected to a roller frame via a pin; two rollers 2 are assembled on each roller frame, (the application is an improvement made on application No. 201410251327.6, which is part of the prior art and is not repeated, and particularly refers to the equipment for repairing the shaft diameter of the high-temperature high-pressure turbine rotor applied in 14 years), and the improvement of the application is that a vertical plate 12 is arranged above each bent plate.
Two long chains 18 are wound on the surface of the rotor shaft 5 in a surrounding mode, the two long chains 18 are respectively arranged on the left side and the right side of the shaft 5, the long chains 18 are connected with the small chain wheels 4 in a meshed mode, the two small chain wheels 4 are connected through the transmission shaft 13, two ends of the transmission shaft 13 penetrate through the vertical plate 12 and are connected with the vertical plate 12 through bearings, and the transmission shaft 13 is driven by the first stepping motor 3; the first stepping motor 3 rotates to drive the transmission shaft 13 to rotate, the two small chain wheels 4 rotate along with the transmission shaft, the long chain 18 is driven to move, the long chain 18 is in a tensioned state, and the shaft rotates along with the long chain 18.
The vertical plate 1 is arranged between two vertical plates 12, the vertical plate 1 is arranged on a nut sliding block, the nut sliding block is connected with a lead screw 11, the lead screw 11 is supported between the two vertical plates 12 through a bearing, and the end part of one end of the lead screw 11, which extends out of the vertical plate 12, is connected with a second stepping motor 15 through a coupler; the second stepping motor 15 drives the screw rod 11 to rotate, and the screw nut sliding block moves forwards or backwards on the screw rod 11 to drive the vertical plate 1 on the sliding block to move forwards and backwards.
The vertical plate 1 is also provided with a servo motor 10, an output shaft of the servo motor 10 is in key connection with one end of a gear sleeve 17, and one end of a chain wheel shaft is in key connection with the other end of the gear sleeve 17; the other end of the chain wheel shaft is connected with the large chain wheel 16 through a key, and one end penetrating out of the large chain wheel 16 is pressed by a gear pressing plate 19 and locked and fixed by a bolt.
The large chain wheel 16 is connected with a grinding wheel chain wheel 20 through a short chain 8, the grinding wheel chain wheel 20 is connected with a grinding wheel shaft, grinding wheels 14 are arranged at two ends of the grinding wheel shaft, the grinding wheel shaft is also provided with a grinding wheel bearing seat 22, and the grinding wheel shaft penetrates through a bearing of the bearing seat 22; the bearing seat 22 is in threaded connection with one end of a harness cord 9; the other end of the harness cord 9 passes through a right-angle side of a right-angle support 7, and the end part which passes through the harness cord is locked by a nut; the other right-angle side of the right-angle support 7 is connected with the vertical plate 1 through a screw.
The vertical plate 1 moves back and forth relative to the screw rod 11, and the grinding wheel bearing seat 22 is driven to move back and forth through the right-angle support 7 and the harness cord 9, so that the grinding wheel 14 connected with the grinding wheel bearing seat 22 moves along with the grinding wheel bearing seat. And as an optimal scheme, the right-angle side that right angle support and riser link to each other can set up rectangular groove, passes rectangular groove with the help of the screw and makes riser and right-angle side link to each other, through adjusting screw in the upper and lower position in rectangular groove, the upper and lower position of adjustable right angle support on the riser, and then reaches the purpose of adjusting the relative rotor shaft's of emery wheel distance size.
Further, the vertical plate 12 is detachably connected with the bent plate.
Further, the end of the grinding wheel shaft outside the grinding wheel 14 is pressed by a large washer 23 and is locked and fixed by a screw.
Further, a shaft retainer ring 24 is mounted on the grinding wheel shaft and between the grinding wheel sprocket 20 and the grinding wheel 14. A shaft retainer ring is also mounted between the grinding wheel sprocket 20 and the grinding wheel bearing block 22.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (4)
1. The high-temperature high-pressure steam turbine rotor journal grinding equipment comprises two bent plates, wherein two ends of each bent plate are respectively connected with a roller carrier through a pin shaft, and two rollers are assembled on each roller carrier; it is characterized in that a vertical plate is arranged above each bent plate;
the surface of the rotor shaft is surrounded by two long chains which are respectively arranged at the left side and the right side of the shaft, the long chains are meshed with the small chain wheels, the two small chain wheels are connected through a transmission shaft, two ends of the transmission shaft penetrate through the vertical plate and are connected with the vertical plate through bearings, and the transmission shaft is driven by a first stepping motor; the first stepping motor rotates to drive the transmission shaft to rotate, the two small chain wheels rotate along with the transmission shaft to drive the long chain to move, the long chain is in a tensioned state, and the shaft rotates along with the long chain;
the vertical plate is arranged between the two vertical plates, the vertical plate is arranged on the nut sliding block, the nut sliding block is connected with a lead screw, the lead screw is supported between the two vertical plates through a bearing, and the end part of one end, extending out of the vertical plate, of the lead screw is connected with a second stepping motor through a coupler; the second stepping motor drives the screw rod to rotate, the screw nut sliding block moves forwards or backwards on the screw rod, and the vertical plate on the sliding block is driven to move forwards and backwards;
the vertical plate is also provided with a servo motor, an output shaft of the servo motor is in key connection with one end of a gear sleeve, and one end of a chain wheel shaft is in key connection with the other end of the gear sleeve; the other end of the chain wheel shaft is connected with the large chain wheel through a key, and one end of the chain wheel shaft, which penetrates out of the large chain wheel, is pressed by a gear pressing plate and is locked and fixed by a bolt;
the large chain wheel is connected with a small chain wheel through a short chain, the small chain wheel is connected with a grinding wheel shaft, grinding wheels are arranged at two ends of the grinding wheel shaft, the grinding wheel shaft is also provided with a grinding wheel bearing seat, and the grinding wheel shaft penetrates through a bearing of the bearing seat; the bearing block is in threaded connection with one end of a harness cord; the other end of the harness cord penetrates through a right-angle side of a right-angle support, and the penetrating end part is locked by a nut; the other right-angle side of the right-angle support is connected with the vertical plate through a screw;
the vertical plate moves back and forth relative to the lead screw, and the grinding wheel bearing seat is driven to move back and forth through the right-angle support and the harness cord, so that the grinding wheel connected with the grinding wheel bearing seat moves along with the grinding wheel.
2. The apparatus for grinding a rotor journal of a high temperature and high pressure steam turbine according to claim 1, wherein: the riser is detachably connected with the bent plate.
3. The apparatus for grinding a rotor journal of a high temperature and high pressure steam turbine according to claim 1, wherein: and outside the grinding wheel, the end part of the grinding wheel shaft is tightly pressed by a large gasket and is locked and fixed by a screw.
4. The apparatus for grinding a rotor journal of a high temperature and high pressure steam turbine according to claim 1, wherein: and shaft check rings are also arranged on the grinding wheel shaft and between the grinding wheel chain wheel and the grinding wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922282571.XU CN211332478U (en) | 2019-12-18 | 2019-12-18 | High-temperature high-pressure steam turbine rotor journal grinding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922282571.XU CN211332478U (en) | 2019-12-18 | 2019-12-18 | High-temperature high-pressure steam turbine rotor journal grinding equipment |
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| Publication Number | Publication Date |
|---|---|
| CN211332478U true CN211332478U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922282571.XU Active CN211332478U (en) | 2019-12-18 | 2019-12-18 | High-temperature high-pressure steam turbine rotor journal grinding equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788679A (en) * | 2019-12-18 | 2020-02-14 | 沈阳多元机电设备有限公司 | High-temperature high-pressure steam turbine rotor journal grinding equipment |
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2019
- 2019-12-18 CN CN201922282571.XU patent/CN211332478U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788679A (en) * | 2019-12-18 | 2020-02-14 | 沈阳多元机电设备有限公司 | High-temperature high-pressure steam turbine rotor journal grinding equipment |
| CN110788679B (en) * | 2019-12-18 | 2024-07-23 | 沈阳多元机电设备有限公司 | High-temperature high-pressure steam turbine rotor journal grinding equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenyang Jinghua Power Equipment Co.,Ltd. Assignor: SHENYANG DUOYUAN ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Contract record no.: X2023210000081 Denomination of utility model: High temperature and high pressure steam turbine rotor journal grinding equipment Granted publication date: 20200825 License type: Common License Record date: 20230904 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High temperature and high pressure turbine rotor journal grinding equipment Granted publication date: 20200825 Pledgee: Hanhua Financing Guarantee Co.,Ltd. Pledgor: SHENYANG DUOYUAN ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Registration number: Y2024210000069 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |