CN213574691U - Draught fan of electric power boiler - Google Patents
Draught fan of electric power boiler Download PDFInfo
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- CN213574691U CN213574691U CN202022549831.8U CN202022549831U CN213574691U CN 213574691 U CN213574691 U CN 213574691U CN 202022549831 U CN202022549831 U CN 202022549831U CN 213574691 U CN213574691 U CN 213574691U
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- belt pulley
- casing
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- electric power
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Abstract
The utility model relates to an electric power boiler draught fan, which comprises a base, a casing and a motor, wherein the casing and the motor are both fixedly arranged on the base, the casing is provided with an air inlet and an air outlet, the casing is internally provided with an impeller, the axis of the impeller is provided with a shaft lever, one end of the shaft lever is provided with a first belt pulley, a rotating shaft of the motor is provided with a second belt pulley, and the first belt pulley and the second belt pulley are sleeved with a triangular belt; still be equipped with the grudging post on the base, the top of grudging post is equipped with vertical distribution's third belt pulley and fourth belt pulley, it rotates to drive the second belt pulley through the motor, thereby drive the V belt motion, the V belt drives first belt pulley and impeller and stands east, thereby produce the air current and draw the wind, still set up the third belt pulley and the fourth belt pulley that are used for tightening the V belt simultaneously, when the V belt is not hard up, outwards adjust the position of third belt pulley and fourth belt pulley through vertical adjustment mechanism, can tighten the triangle end, thereby avoid wholly maintaining the draught fan.
Description
Technical Field
The utility model relates to a draught fan field specifically is an electric power boiler draught fan.
Background
The induced draft fan is a device which increases gas pressure and discharges gas by means of input mechanical energy, and the induced draft fan needs to work under the driving of a motor. The induced draft fans are various in types and are widely applied to boilers and industrial furnaces. The induced draft fan is required by continuous production, and can continuously run around the clock, and the service life of the induced draft fan directly influences the production reliability.
However, the existing induced draft fan is poor in damping effect, so that the noise generated during use is too large, the problem that the V-belt is loosened can be caused after the induced draft fan is used for a long time, and the induced draft fan is maintained by stopping the operation of the induced draft fan if the induced draft fan is replaced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an electric power boiler draught fan can be convenient for carry out manual regulation to the V belt to avoid appearing the lax condition of V belt.
The utility model discloses an electric power boiler draught fan, including base, casing and motor are all fixed to be set up on the base, are equipped with air intake and air outlet on the casing, are equipped with the impeller inside the casing, are equipped with the axostylus axostyle on the axis of impeller, and the axostylus axostyle rotates with the casing to be connected, and the one end of axostylus axostyle passes the casing and sets up outside the casing, and the one end of axostylus axostyle is equipped with first belt pulley, is equipped with the second belt pulley in the pivot; still be equipped with the grudging post on the base, the top of grudging post is equipped with vertical distribution's third belt pulley and fourth belt pulley, and on third belt pulley and fourth belt pulley were established to the V belt same cover, third belt pulley and fourth belt pulley passed through vertical adjustment mechanism and were connected with the grudging post.
Further, the shaft rod is rotatably connected with the casing through a bearing.
Further, vertical adjustment mechanism includes wheel carrier, lead screw and nut, the top of grudging post is equipped with last mounting panel and the lower mounting panel that the level set up, all is equipped with the through-hole on going up mounting panel and the lower mounting panel, lead screw and wheel carrier fixed connection, and the lead screw is worn to establish in the through-hole, and the nut cover is established on the lead screw, and the quantity of nut is two at least, and the nut is with last mounting panel or the last lower face butt of mounting panel down.
Further, the third belt pulley and the fourth belt pulley are both arranged on the wheel carrier.
Further, the lead screw is provided with a gasket in a sleeved mode, and the gasket is arranged between the nut and the mounting plate.
The utility model has the advantages that: the utility model discloses an electric power boiler draught fan drives the second belt pulley through the motor and rotates to drive the V belt motion, the V belt drives first belt pulley and impeller and stands east, thereby produce the air current and draw the wind, still set up the third belt pulley and the fourth belt pulley that are used for tightening the V belt simultaneously, when the V belt is not hard up, outwards adjust the position of third belt pulley and fourth belt pulley through vertical adjustment mechanism, can tighten the triangle-end, thereby avoid needing to maintain the draught fan wholly.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic side view of the present invention.
The reference numbers are as follows: 1-base, 2-machine shell, 3-motor, 4-triangular belt, 5-vertical adjusting mechanism, 6-third belt pulley, 7-fourth belt pulley, 11-vertical frame, 21-impeller, 31-second belt pulley, 51-wheel frame, 52-lead screw, 53-nut, 211-shaft lever, 212-first belt pulley, 531-gasket.
Detailed Description
As shown in fig. 1-2: the electric power boiler induced draft fan comprises a base 1, a casing 2 and a motor 3, wherein the casing 2 and the motor 3 are fixedly arranged on the base 1, an air inlet and an air outlet are formed in the casing 2, an impeller 21 is arranged in the casing 2, a shaft lever 211 is arranged on the axis of the impeller 21, the shaft lever 211 is rotatably connected with the casing 2, one end of the shaft lever 211 penetrates through the casing 2 and is arranged outside the casing 2, a first belt pulley 212 is arranged at one end of the shaft lever 211, a second belt pulley 31 is arranged on a rotating shaft of the motor 3, and a triangular belt 4 is sleeved on the first belt pulley 212 and the second belt pulley 31; still be equipped with grudging post 11 on the base 1, the top of grudging post 11 is equipped with vertical distribution's third belt pulley 6 and fourth belt pulley 7, and on third belt pulley 6 and fourth belt pulley 7 were established to the same cover of V belt 4, third belt pulley 6 and fourth belt pulley 7 were connected with grudging post 11 through vertical adjustment mechanism 5.
The utility model discloses an electric power boiler draught fan, it rotates to drive second belt pulley 31 through motor 3, thereby drive the motion of V belt 4, V belt 4 drives first belt pulley 212 and the east of 21 stations of impeller, thereby produce the air current and draw the wind, still set up the third belt pulley 6 and the fourth belt pulley 7 that are used for tightening V belt 4 simultaneously, when V belt 4 is not hard up, outwards adjust the position of third belt pulley 6 and fourth belt pulley 7 through vertical adjustment mechanism 5, can tighten the triangle end, thereby avoid wholly maintaining the draught fan.
In this embodiment, the shaft 211 is rotatably connected to the casing 2 through a bearing, and the rotation of the impeller 21 is more stable and smooth through the bearing.
In this embodiment, the vertical adjusting mechanism 5 includes a wheel carrier 51, a screw rod 52 and a nut 53, the top end of the vertical frame 11 is provided with an upper mounting plate and a lower mounting plate which are horizontally arranged, the upper mounting plate and the lower mounting plate are provided with through holes, the screw rod 52 is fixedly connected with the wheel carrier 51, the screw rod is arranged in the through holes in a penetrating manner, the nut 53 is sleeved on the screw rod 52, the number of the nuts 53 is at least two, the nut 53 is abutted to the upper surface and the lower surface of the upper mounting plate or the lower mounting plate, during adjustment, the nuts 53 on the two sides of the mounting plate are unscrewed, the wheel carrier 51 is integrally adjusted upwards or.
In this embodiment, the third belt pulley 6 and the fourth belt pulley 7 are both arranged on the wheel frame 51, the wheel frame 51 is an installation piece with an L-shaped section, a horizontal portion of the installation piece is welded and fixed with one end of the screw 52, a vertical portion of the installation piece is perforated and an outer ring of a bearing is fixedly welded in the air, and the third belt pulley 6 and the fourth belt pulley 7 with the middle shaft fix the middle shaft on an inner ring of the bearing, so that the third belt pulley 6 and the fourth belt pulley 7 are installed.
In this embodiment, the screw 52 is provided with the gasket 531, and the gasket 531 is disposed between the nut 53 and the mounting plate, so that the nut 53 can be more stably fixed on the screw 52, the screw 52 is fixed on the mounting plate, and the nut 53 is prevented from loosening due to the shaking of the motor 3 during operation.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (5)
1. The utility model provides an electric power boiler draught fan which characterized in that: the electric fan comprises a base, a casing and a motor, wherein the casing and the motor are fixedly arranged on the base, an air inlet and an air outlet are formed in the casing, an impeller is arranged in the casing, a shaft rod is arranged on the axis of the impeller, the shaft rod is rotatably connected with the casing, one end of the shaft rod penetrates through the casing and is arranged outside the casing, a first belt pulley is arranged at one end of the shaft rod, a second belt pulley is arranged on a rotating shaft of the motor, and a triangular belt is sleeved on the first belt pulley and the second belt pulley; still be equipped with the grudging post on the base, the top of grudging post is equipped with vertical distribution's third belt pulley and fourth belt pulley, and on third belt pulley and fourth belt pulley were established to the V belt same cover, third belt pulley and fourth belt pulley passed through vertical adjustment mechanism and were connected with the grudging post.
2. The induced draft fan of the electric power boiler according to claim 1, wherein: the shaft lever is rotatably connected with the shell through a bearing.
3. The induced draft fan of the electric power boiler according to claim 1, wherein: vertical adjustment mechanism includes wheel carrier, lead screw and nut, the top of grudging post is equipped with the last mounting panel and the lower mounting panel that the level set up, goes up all is equipped with the through-hole on mounting panel and the lower mounting panel, lead screw and wheel carrier fixed connection, and the lead screw is worn to establish in the through-hole, and the nut cover is established on the lead screw, and the quantity of nut is two at least, the nut and last mounting panel or the upper and lower butt of mounting panel down.
4. The induced draft fan of the electric power boiler according to claim 3, wherein: the third belt pulley and the fourth belt pulley are both arranged on the wheel carrier.
5. The induced draft fan of the electric power boiler according to claim 3, wherein: the lead screw is provided with a gasket in a sleeved mode, and the gasket is arranged between the nut and the mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022549831.8U CN213574691U (en) | 2020-11-06 | 2020-11-06 | Draught fan of electric power boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022549831.8U CN213574691U (en) | 2020-11-06 | 2020-11-06 | Draught fan of electric power boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213574691U true CN213574691U (en) | 2021-06-29 |
Family
ID=76535772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022549831.8U Active CN213574691U (en) | 2020-11-06 | 2020-11-06 | Draught fan of electric power boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213574691U (en) |
-
2020
- 2020-11-06 CN CN202022549831.8U patent/CN213574691U/en active Active
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