CN208479379U - A kind of boiler air preheater reduction gearing mechanism for being conducive to protect motor and install convenient - Google Patents
A kind of boiler air preheater reduction gearing mechanism for being conducive to protect motor and install convenient Download PDFInfo
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- CN208479379U CN208479379U CN201821099456.8U CN201821099456U CN208479379U CN 208479379 U CN208479379 U CN 208479379U CN 201821099456 U CN201821099456 U CN 201821099456U CN 208479379 U CN208479379 U CN 208479379U
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- sliding rail
- motor
- reduction gearbox
- air preheater
- sliding block
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Abstract
The utility model belongs to transmission mechanism design field; in particular to a kind of boiler air preheater reduction gearing mechanism for being conducive to protect motor and install convenient: including main motor, auxiliary motor, reduction gearbox, air preheater, carriage; the utility model is using winding type permanent-magnet speed governor connection auxiliary motor and reduction gearbox; main motor and reduction gearbox are equally connected using permanent magnetism mode; sliding equipment is set below motor; the online repairing for realizing motor, reduces the workload of electrical machmary maintenance.
Description
Technical field
The utility model belongs to transmission mechanism design field, in particular to one kind is conducive to protect motor and installation is just
Prompt boiler air preheater reduction gearing mechanism.
Background technique
Air preheater is the Important Auxiliary equipment of unit, and to be that air preheater can be safely operated important for rotary regenerative air heater deceleration mechanism
Guarantee, the mechanism that air preheater deceleration mechanism is generally made of main motor, auxiliary motor, reduction gearbox drives jointly, and main and auxiliary motor uses
The mode of mutual backup is run, and auxiliary motor shafting is equipped with clutch, when main motor operation, auxiliary motor not transfer.
This reduction gearing mechanism inherent shortcoming is: once main motor breaks down or damages in operation, temporarily by auxiliary electricity
Machine puts into operation, due to the drive of main motor early period, at this time the revolving speed of retarder and air preheater quickly, along with empty pre-
The great several hundred tons of the rotor of device, inertia is huge, and the moment staring torque for being subject to auxiliary motor is very big, connects the clutch of auxiliary motor
Cannot withstand will failure mode, air preheater out of service must place under repair, and such reduction gearing mechanism just loses spare
Function.Unit safety, economy are poor, it is possible to create environmentally friendly accident, operation risk are very big.
Further, since air preheater mainly or by main motor drives, therefore main motor breaks down or needs when damaging
It to disassemble and place under repair in time, also need to dock again in the shafting of main motor and reduction gearbox before reinstalling after fixing
The heart, this may also cause the stoppage in transit of air preheater and reduction gearbox relatively long time.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of boiler for being conducive to protect motor and install convenient
Air preheater reduction gearing mechanism, including main motor, auxiliary motor, reduction gearbox, air preheater, the first carriage, the second sliding
Device,
Main motor is connect by permanent magnet coupling shaft coupling with reduction gearbox and independently driving reduction gearbox work,
Auxiliary motor is connect by winding type permanent-magnet speed governor with reduction gearbox and independently driving reduction gearbox work,
The rotor of reduction gearbox connection air preheater simultaneously drives rotor to rotate,
First carriage includes that the first sliding rail, activity are connected to the first sliding block on the first sliding rail, and the one of the first sliding rail
End is fixed on reduction gearbox, and main motor is installed on the first sliding block, and main motor is slided on the first sliding rail by the first sliding block
When remain main motor, permanent magnet coupling shaft coupling, reduction gearbox have same axial center,
Second carriage includes that the second sliding rail, activity are connected to the second sliding block on the second sliding rail, and the one of the second sliding rail
End is fixed on reduction gearbox, and auxiliary motor is installed on the second sliding block, and auxiliary motor is slided on the second sliding rail by the second sliding block
When remain auxiliary motor, winding type permanent-magnet speed governor, reduction gearbox have same axial center.
As preferred: reduction gearbox is mounted on air preheater rotor cold end at central tube, and the output shaft of reduction gearbox is logical
It crosses transmission gear to be intermeshed with the shroud pin on air preheater rotor outer circle coverboard, to drive air preheater
Rotor rotation；
First sliding rail is installed with the first stepper motor, the shaft end of the first stepper motor on the bottom surface far from reduction gearbox one end
Connection is parallel to the first ball screw of the first sliding rail bottom surface, and first ball screw extends to reduction gearbox, the first ball wire
The first sliding block can be fixed in along the first wire nut that first ball screw length direction moves back and forth, first wire nut by being socketed on thick stick
Bottom, the rotation of the first stepping motor driven first ball screw is to drive first wire nut back and forth to transport in first ball screw
It is dynamic, it is final that the first sliding block is driven to reciprocatingly slide on the first sliding rail,
Second sliding rail is installed with second stepper motor, the shaft end of second stepper motor on the bottom surface far from reduction gearbox one end
Connection is parallel to the second ball-screw of the second sliding rail bottom surface, and the second ball-screw extends to reduction gearbox, the second ball wire
The second screw that can move back and forth along the second ball-screw length direction is socketed on thick stick, the second screw is fixed in the second sliding block
Bottom, second stepper motor drive the rotation of the second ball-screw back and forth to transport on the second ball-screw to the second screw of driving
It is dynamic, it is final that the second sliding block is driven to reciprocatingly slide on the second sliding rail；
The top of first sliding rail is equipped with several first fans, and the first fan is arranged successively along the length direction of the first sliding rail,
The air-out direction of first fan against the upper surface of the first sliding rail,
The top of second sliding rail is equipped with several second fans, and the second fan is arranged successively along the length direction of the second sliding rail,
The air-out direction of second fan is directed at the upper surface of the second sliding rail.
Auxiliary motor is connect by the utility model using winding type permanent-magnet speed governor with reduction gearbox, winding type permanent-magnet speed governor sheet
Body has the function of speed governing operation, is able to achieve speed change starting, reduces the impact to air preheater and reduction gearbox, eliminate air preheater and subtract
Originally clutch used in reduction gearbox and auxiliary motor and its brought risk are connected in fast mechanism；
Sliding equipment is set below main motor and auxiliary motor, is extracted motor out and deceleration of slipping away after motor failure
It can place under repair to motor after case a distance, motor along sliding rail backtracking accesses reduction gearbox after fixing again, does not need
Zai Zhao axial center, it is easy for installation, reduce workload,
It connects and adjusts the speed using permanent magnetism mode especially between main motor and reduction gearbox, will be led after main motor failure
Motor extract out and place under repair after the reduction gearbox a distance that slips away to main motor (when main motor and reduction gearbox disengage, permanent magnet coupling
Part in shaft coupling close to main motor is still connected on main motor, and is still connected to reduction gearbox close to the part of reduction gearbox
On, this is the equal of that permanent magnet coupling shaft coupling is separated in magnetic junction), stoppage in transit air preheater is not needed, main motor is fixed
It can be directly accessed reduction gearbox along sliding rail backtracking afterwards, realize the online repairing of motor；
Sliding block and the main motor or auxiliary motor that are mounted on sliding block are controlled in sliding on sliding rail using ball screw arrangement,
Stepper motor drives ball-screw to rotate corresponding circle number, and screw is also with regard to the corresponding distance of band movable slider transverse shifting, realization pair
The strict control of distance, avoids in unit running process, due to sliding block between main motor or auxiliary motor and speed reducer on sliding block
Voluntarily sliding so that main motor or auxiliary motor is detached from speed reducer,
In addition, sliding rail upper surface is blowed using fan, flue gas around air preheater, dust deposit are avoided in cunning
Track surface influences sliding block sliding after reaching a certain level is smooth, while needing to pay attention to and controlling wind-force, avoids flue gas, dust big
Area is flown upward.
Detailed description of the invention
Fig. 1 is the knot for being conducive to protect motor and the boiler air preheater reduction gearing mechanism of install convenient in the utility model
Structure schematic diagram,
Wherein, 1-main motor, 2-auxiliary motors, 3-reduction gearboxes, 4-air preheaters, the 5-the first carriage, 51-
First sliding rail, the 52-the first sliding block, the 53-the first stepper motor, 54-first ball screws, 55-first wire nuts, 56-the first
Fan, the 6-the second carriage, the 61-the second sliding rail, the 62-the second sliding block, 63-second stepper motors, the 64-the second ball
Lead screw, the 65-the second screw, the 66-the second fan, 7-permanent magnet coupling shaft couplings, 8-winding type permanent-magnet speed governors.
Specific embodiment
As shown in Fig. 1, the boiler air preheater deceleration transmission for being conducive to protect motor and install convenient of the utility model
Mechanism, transmission mechanism include main motor 1, auxiliary motor 2, reduction gearbox 3, air preheater 4, the first carriage 5, second sliding dress
Set 6,
Main motor 1 is connect by permanent magnet coupling shaft coupling 7 with reduction gearbox 3 and independently driving reduction gearbox 3 works,
Auxiliary motor 2 is connect by winding type permanent-magnet speed governor 8 with reduction gearbox 3 and independently driving reduction gearbox 3 works,
Reduction gearbox 3 connects the rotor of air preheater 4 and the rotor is driven to rotate；
First carriage 5 includes the first sliding rail 51, movable the first sliding block 52 being connected on the first sliding rail 51, main motor
1 is installed on the first sliding block 52, and one end of the first sliding rail 51 is fixed on reduction gearbox 3, and the first sliding rail 51 is far from 3 one end of reduction gearbox
Bottom surface on be installed with the first stepper motor 53, the shaft end connection of the first stepper motor 53 is parallel to the first sliding rail 51 bottom
The first ball screw 54 in face, first ball screw 54 extend close to reduction gearbox 3, and being socketed in first ball screw 54 can edge
The first wire nut 55 that 54 length direction of first ball screw moves back and forth, first wire nut 55 are fixed in the bottom of the first sliding block 52 simultaneously
The first sliding block 52 is driven to reciprocatingly slide on the first sliding rail 51, main motor 1 is slided on the first sliding rail 51 by the first sliding block 52
When remain main motor 1, permanent magnet coupling shaft coupling 7, reduction gearbox 3 have same axial center,
The top of first sliding rail 51 be equipped with several first fans 56, the first fan 56 along the first sliding rail 51 length direction according to
Secondary arrangement, the air-out direction of the first fan 56 is against the upper surface of the first sliding rail 51；
Second carriage 6 includes the second sliding rail 61, movable the second sliding block 62 being connected on the second sliding rail 61, auxiliary motor
2 are installed on the second sliding block 62, and one end of the second sliding rail 61 is fixed on reduction gearbox 3, and the second sliding rail 61 is far from 3 one end of reduction gearbox
Bottom surface on be installed with second stepper motor 63, the shaft end connection of second stepper motor 63 is parallel to the second sliding rail 61 bottom
Second ball-screw 64 in face, the second ball-screw 64 extend close to reduction gearbox 3, and being arranged on the second ball-screw 64 can edge
The second screw 65 that second ball-screw, 64 length direction moves back and forth, the second screw 65 are fixed in the bottom of the second sliding block 62 simultaneously
The second sliding block 62 is driven to reciprocatingly slide on the second sliding rail 61, auxiliary motor 2 is slided on the second sliding rail 61 by the second sliding block 62
When remain auxiliary motor 2, winding type permanent-magnet speed governor 8, reduction gearbox 3 have same axial center,
The top of second sliding rail 61 be equipped with several second fans 66, the second fan 66 along the second sliding rail 61 length direction according to
Secondary arrangement, the air-out direction of the second fan 66 is against the upper surface of the second sliding rail 61.
Claims (6)
1. a kind of boiler air preheater reduction gearing mechanism for being conducive to protect motor and install convenient, it is characterised in that: described
Transmission mechanism includes main motor (1), auxiliary motor (2), reduction gearbox (3), air preheater (4), the first carriage (5), second
Carriage (6),
The main motor (1) by permanent magnet coupling shaft coupling (7) connect with the reduction gearbox (3) and independently drive described in
Reduction gearbox (3) work,
The auxiliary motor (2) connect with the reduction gearbox (3) by winding type permanent-magnet speed governor (8) and independently drives institute
Reduction gearbox (3) work stated,
The rotor of reduction gearbox (3) connection air preheater (4) simultaneously drives the rotor to rotate；
First carriage (5) is connected to first on first sliding rail (51) including the first sliding rail (51), activity
One end of sliding block (52), first sliding rail (51) is fixed on the reduction gearbox (3), and the main motor (1) is installed on described
The first sliding block (52) on, and the main motor (1) is slided on first sliding rail (51) by first sliding block (52)
When remain the main motor (1), the permanent magnet coupling shaft coupling (7), the reduction gearbox (3) have same axial center,
Second carriage (6) is connected to second on second sliding rail (61) including the second sliding rail (61), activity
One end of sliding block (62), second sliding rail (61) is fixed on the reduction gearbox (3), and the auxiliary motor (2) is installed on described
The second sliding block (62) on, and the auxiliary motor (2) is slided on second sliding rail (61) by second sliding block (62)
When remain the auxiliary motor (2), the winding type permanent-magnet speed governor (8), the reduction gearbox (3) have same shafting in
The heart.
2. be conducive to protect the boiler air preheater reduction gearing mechanism of motor and install convenient as described in claim 1, it is special
Sign is: the reduction gearbox (3) is mounted on the rotor cold end at central tube, and the output shaft of the reduction gearbox (3) passes through
Transmission gear is intermeshed with the shroud pin on the rotor outer circle coverboard, so that the rotor be driven to rotate.
3. be conducive to protect the boiler air preheater reduction gearing mechanism of motor and install convenient as described in claim 1, it is special
Sign is: being installed with the first stepper motor on the bottom surface of the separate reduction gearbox (3) one end of first sliding rail (51)
(53), the shaft end connection of first stepper motor (53) is parallel to the first ball wire of the first sliding rail (51) bottom surface
Thick stick (54), the first ball screw (54) extend close to the reduction gearbox (3), in the first ball screw (54)
Being socketed with can be along the first wire nut (55) that the first ball screw (54) length direction moves back and forth, the first wire nut
(55) it is fixed in the bottom of first sliding block (52) and first sliding block (52) can be driven in first sliding rail (51)
On reciprocatingly slide.
4. be conducive to protect the boiler air preheater reduction gearing mechanism of motor and install convenient as described in claim 1, it is special
Sign is: being installed with second stepper motor on the bottom surface of the separate reduction gearbox (3) one end of second sliding rail (61)
(63), the shaft end connection of the second stepper motor (63) is parallel to the second ball wire of the second sliding rail (61) bottom surface
Thick stick (64), second ball-screw (64) extend close to the reduction gearbox (3), on second ball-screw (64)
It is socketed with the second screw (65) that can move back and forth along the second ball-screw (64) length direction, second screw
(65) it is fixed in the bottom of second sliding block (62) and second sliding block (62) can be driven in second sliding rail (61)
On reciprocatingly slide.
5. be conducive to protect the boiler air preheater reduction gearing mechanism of motor and install convenient as described in claim 1, it is special
Sign is: the top of first sliding rail (51) is equipped with several first fans (56), and first fan (56) is along described first
The length direction of sliding rail (51) is arranged successively, and the air-out direction of first fan (56) is against the upper of first sliding rail (51)
Surface.
6. be conducive to protect the boiler air preheater reduction gearing mechanism of motor and install convenient as described in claim 1, it is special
Sign is: the top of second sliding rail (61) is equipped with several second fans (66), and second fan (66) is along described second
The length direction of sliding rail (61) is arranged successively, and the air-out direction of second fan (66) is against the upper of second sliding rail (61)
Surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821099456.8U CN208479379U (en) | 2018-07-11 | 2018-07-11 | A kind of boiler air preheater reduction gearing mechanism for being conducive to protect motor and install convenient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821099456.8U CN208479379U (en) | 2018-07-11 | 2018-07-11 | A kind of boiler air preheater reduction gearing mechanism for being conducive to protect motor and install convenient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208479379U true CN208479379U (en) | 2019-02-05 |
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ID=65210370
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821099456.8U Active CN208479379U (en) | 2018-07-11 | 2018-07-11 | A kind of boiler air preheater reduction gearing mechanism for being conducive to protect motor and install convenient |
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| Country | Link |
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| CN (1) | CN208479379U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025890A (en) * | 2019-12-18 | 2020-04-17 | 国家能源集团谏壁发电厂 | Synchronous permanent magnet coupling driving system of power plant air preheater |
| CN111525749A (en) * | 2020-05-09 | 2020-08-11 | 国家能源集团谏壁发电厂 | Same-parameter-based double-motor online repair method |
| CN111564929A (en) * | 2020-05-26 | 2020-08-21 | 方彭 | Main and standby motor switching device |
| CN112737203A (en) * | 2020-12-14 | 2021-04-30 | 江苏嘉瑞丰机电设备有限公司 | High-voltage motor with automatic speed regulation function |
-
2018
- 2018-07-11 CN CN201821099456.8U patent/CN208479379U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025890A (en) * | 2019-12-18 | 2020-04-17 | 国家能源集团谏壁发电厂 | Synchronous permanent magnet coupling driving system of power plant air preheater |
| CN111025890B (en) * | 2019-12-18 | 2023-10-13 | 国家能源集团谏壁发电厂 | Synchronous permanent magnet coupling driving system of air preheater of power plant |
| CN111525749A (en) * | 2020-05-09 | 2020-08-11 | 国家能源集团谏壁发电厂 | Same-parameter-based double-motor online repair method |
| CN111564929A (en) * | 2020-05-26 | 2020-08-21 | 方彭 | Main and standby motor switching device |
| CN112737203A (en) * | 2020-12-14 | 2021-04-30 | 江苏嘉瑞丰机电设备有限公司 | High-voltage motor with automatic speed regulation function |
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