CN210461115U - Barring gear of gas fan - Google Patents
Barring gear of gas fan Download PDFInfo
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- CN210461115U CN210461115U CN201920993437.8U CN201920993437U CN210461115U CN 210461115 U CN210461115 U CN 210461115U CN 201920993437 U CN201920993437 U CN 201920993437U CN 210461115 U CN210461115 U CN 210461115U
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- aligning
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- gear
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Abstract
The utility model discloses a barring gear of coal gas fan, including coal gas fan, automatic barring ware and manual barring ware, automatic barring ware includes: the motor, the speed reducer, the alignment device and the clutch, wherein the alignment device comprises an alignment block, an alignment end cover and an alignment card which are matched with each other, and the alignment end cover and the alignment block are combined together through the alignment card; the manual barring device comprises a driving gear and a connecting gear, wherein concave limiting teeth are arranged on a wheel disc of the connecting gear, one or more sliding grooves are further formed in the fan shaft in the axial direction, and limiting blocks are slidably clamped in the sliding grooves.
Description
Technical Field
The utility model relates to a barring gear of coal gas fan belongs to coke coal fan barring gear technical field.
Background
Currently, gas blowers are used for the staged delivery of gas. The coal gas is compressed adiabatically in the conveying process, and the pressure of the coal gas is raised under the action of each impeller of the blower rotor. Each part of the gas blower often bears higher pressure during working, and the matching of each part is influenced.
When the machine is stopped, the temperature of the fan is higher, the impeller is deformed due to high temperature, and the fan needs to be cooled at a low speed after the machine is stopped in order to rapidly cool the impeller of the fan.
Because the fan impeller is large, in order to ensure that the shaft of the fan impeller is not bent and ensure the concentricity, an electric barring gear is generally arranged, and a barring speed reducer is utilized to drive the fan impeller to rotate, so that the fan impeller rotates to a certain position; when the barring gear is operated, the operation efficiency is low, the positioning accuracy of the fan impeller is also low, and further improvement is needed.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough of prior art, the utility model provides a barring device of coal gas fan, the device can guarantee the continuous barring of fan, alleviates operating personnel's intensity of labour, guarantees the concentricity of fan axle, solves the equipment vibration that causes because of the barring is not in place big or axle warp crooked problem.
The utility model discloses a following technical scheme realizes:
the utility model provides a barring gear of gas fan, includes gas fan, automatic barring ware and manual barring ware, the gas fan includes impeller and fan axle, the automatic barring ware includes: the fan shaft is connected with the clutch through the aligning device, the clutch is connected with an output shaft of the speed reducer, an input shaft of the speed reducer is connected with the motor,
the aligning device comprises an aligning block, an aligning end cover and an aligning clamp which are matched with each other, the aligning block is fixedly arranged at the top end of the fan shaft, the aligning end cover is fixedly connected with an output shaft end of the clutch, a block cavity matched with the aligning block is arranged in the aligning end cover, an aligning edge is arranged on the outer wall of the top of the aligning end cover, and the aligning end cover and the aligning block are combined together through the aligning clamp;
the manual barring gear comprises a driving gear and a connecting gear, the driving gear is provided with a driving handle, the wheel disc of the connecting gear is provided with concave limiting teeth, the connecting gear is arranged on the fan shaft, the fan shaft is further provided with one or more sliding grooves along the axial direction, limiting blocks are clamped in the sliding grooves in a sliding mode, and the shape of each limiting block is matched with that of each limiting tooth.
Preferably, the alignment clamp is a U-shaped clamp with one long side and one short side, and a locking screw rod is arranged on the long side in a penetrating mode.
Preferably, the fan shaft is further provided with a bearing seat, and the bearing seat is connected with the fan shaft through a bearing.
Preferably, the alignment block is a regular hexagon, and the block cavity is an inner concave cavity of the regular hexagon.
Preferably, the clutch is an overrunning clutch.
Compared with the prior art, the utility model discloses following beneficial effect has:
the device adopts the mode of matching the automatic barring and the manual barring to carry out barring on the coal gas fan, has simple structure, saves time and labor, and can effectively improve the working efficiency of the fan.
After the electric barring device is adopted, the continuous barring of the fan can be ensured, and the problem that manual barring is not in place sometimes is solved. The labor intensity of operators is reduced. The concentricity of the fan shaft is ensured. The problem of large equipment vibration or shaft deformation and bending caused by the fact that the jigger is not in place is solved, and the completeness of the equipment is guaranteed.
And when the fan is in a stop state, the fan shaft is connected with the electric barring gear, and the starting motor and the driving reducer rotate the fan shaft.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the manual turning gear of the present invention.
Fig. 3 is a schematic structural view of the alignment device of the present invention.
Fig. 4 is the utility model discloses internal tooth and stopper structural schematic.
Fig. 5 is the schematic structural view of the alignment end cap and the block cavity of the present invention.
In the figure, a gas fan 1, an impeller 2, a fan shaft 3, a motor 4, a speed reducer 5, an alignment device 6, a clutch 7, a driving gear 8, a connecting gear 9, a bearing seat 10, a chute 31, a limiting block 32, an alignment block 61, an alignment end cover 62, an alignment clamp 63, a block cavity 64, an alignment edge 65, a U-shaped hoop 66, a locking screw 67 and a limiting tooth 91.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but the scope of the present invention is not limited to these embodiments, and any changes or equivalent substitutions that do not depart from the spirit of the present invention are intended to be included within the scope of the present invention.
Example 1
The utility model provides a barring gear of gas fan, includes gas fan 1, automatic barring ware and manual barring ware, gas fan 1 includes impeller 2 and fan axle 3, the automatic barring ware includes: the fan shaft 3 is connected with the clutch 7 through the alignment device 6, the clutch 7 is connected with an output shaft of the speed reducer 5, an input shaft of the speed reducer 5 is connected with the motor 4,
the alignment device 6 comprises an alignment block 61, an alignment end cover 62 and an alignment clamp 63 which are matched with each other, the alignment block 61 is fixedly arranged at the top end of the fan shaft 3, the alignment end cover 62 is fixedly connected with the output shaft end of the clutch 7, a block cavity 64 matched with the alignment block is arranged inside the alignment end cover, an alignment edge 65 is arranged on the outer wall of the top of the alignment end cover 62, and the alignment end cover 62 and the alignment block 61 are combined together through the alignment clamp 63;
the manual barring gear comprises a driving gear 8 and a connecting gear 9, wherein a driving handle 81 is arranged on the driving gear 8, concave limiting teeth 91 are arranged on a wheel disc of the connecting gear 9, the connecting gear 9 is arranged on the fan shaft 3, one or more sliding grooves 31 are further formed in the fan shaft 3 along the axial direction, limiting blocks 32 are slidably clamped in the sliding grooves 31, and the shapes of the limiting blocks 32 are matched with those of the limiting teeth 91.
Preferably, the alignment clip 63 is a U-shaped clip 66 having a long side and a short side, and a locking screw 67 is inserted into the long side.
Preferably, the fan shaft 3 is further provided with a bearing seat 10, and the bearing seat is connected with the fan shaft through a bearing.
Preferably, the alignment block 61 is a regular hexagon, and the block cavity 64 is an inner concave cavity of the regular hexagon.
Preferably, the clutch 7 is an overrunning clutch.
The device adopts the mode of matching the automatic barring and the manual barring to carry out barring on the coal gas fan, has simple structure, saves time and labor, and can effectively improve the working efficiency of the fan.
And when the fan is in a stop state, the fan shaft is connected with the electric barring gear, and the starting motor and the driving reducer rotate the fan shaft. When the fan stops running, the adjusting motor and the driving speed reducer are used to drive the impeller to rotate slowly, and the general rotating speed is set to be 8-10 revolutions per minute in the daily stop running state.
After the electric barring device is adopted, the continuous barring of the fan can be ensured, and the problem that manual barring is not in place sometimes is solved. The labor intensity of operators is reduced. The concentricity of the fan shaft is ensured. The problem of large equipment vibration or shaft deformation and bending caused by the fact that the jigger is not in place is solved, and the completeness of the equipment is guaranteed.
Under the power failure state or the machine fault condition, a manual barring gear can be adopted, the drive gear is periodically rotated to drive the connecting gear and the fan shaft to rotate to a proper angle state, the limiting blocks are clamped in the limiting teeth, and the angle of the impeller is fixed.
The overrunning clutch comprises a driving wheel and a driven wheel which are coaxial, the driving wheel moves along the axial direction of the driving wheel, the driving wheel is provided with a first tooth, and the first tooth is provided with a first inclined plane and a first vertical plane extending along the axial direction of the driving wheel; the driven wheel is provided with second teeth, and the second teeth are provided with second inclined planes and second vertical planes extending along the axial direction of the driven wheel; the first vertical surface and the second vertical surface are matched to enable the driven wheel to be driven by the driving wheel, and the first inclined surface and the second inclined surface are matched to enable the driven wheel to drive the driving wheel to be far away from the driven wheel along the axial direction of the driven wheel when the rotating speed of the driving wheel is smaller than that of the driven wheel.
The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a barring gear of coal gas fan which characterized in that, includes coal gas fan, automatic barring ware and manual barring ware, the coal gas fan includes impeller and fan axle, automatic barring ware includes: the fan shaft is connected with the clutch through the aligning device, the clutch is connected with an output shaft of the speed reducer, an input shaft of the speed reducer is connected with the motor,
the aligning device comprises an aligning block, an aligning end cover and an aligning clamp which are matched with each other, the aligning block is fixedly arranged at the top end of the fan shaft, the aligning end cover is fixedly connected with an output shaft end of the clutch, a block cavity matched with the aligning block is arranged in the aligning end cover, an aligning edge is arranged on the outer wall of the top of the aligning end cover, and the aligning end cover and the aligning block are combined together through the aligning clamp;
the manual barring gear comprises a driving gear and a connecting gear, the driving gear is provided with a driving handle, the wheel disc of the connecting gear is provided with concave limiting teeth, the connecting gear is arranged on the fan shaft, the fan shaft is further provided with one or more sliding grooves along the axial direction, limiting blocks are clamped in the sliding grooves in a sliding mode, and the shape of each limiting block is matched with that of each limiting tooth.
2. The barring gear of a gas fan according to claim 1, wherein the alignment clip is a U-shaped clip having a long side and a short side, and a locking screw is provided through the long side.
3. The barring gear of a gas fan as claimed in claim 1 wherein the fan shaft is further provided with a bearing seat, and the bearing seat is connected with the fan shaft through a bearing.
4. The barring gear of a gas fan as claimed in claim 1 wherein the alignment block is a regular hexagon and the block cavity is an internal concave cavity of the regular hexagon.
5. The barring gear of a gas blower of claim 1 wherein the clutch is an overrunning clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920993437.8U CN210461115U (en) | 2019-06-28 | 2019-06-28 | Barring gear of gas fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920993437.8U CN210461115U (en) | 2019-06-28 | 2019-06-28 | Barring gear of gas fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210461115U true CN210461115U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920993437.8U Active CN210461115U (en) | 2019-06-28 | 2019-06-28 | Barring gear of gas fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210461115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664090A (en) * | 2020-05-30 | 2020-09-15 | 上海大隆机器厂有限公司 | Twin-screw compressor with electric barring gear |
-
2019
- 2019-06-28 CN CN201920993437.8U patent/CN210461115U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664090A (en) * | 2020-05-30 | 2020-09-15 | 上海大隆机器厂有限公司 | Twin-screw compressor with electric barring gear |
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