CN207470798U - A kind of no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing - Google Patents
A kind of no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing Download PDFInfo
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- CN207470798U CN207470798U CN201721390816.5U CN201721390816U CN207470798U CN 207470798 U CN207470798 U CN 207470798U CN 201721390816 U CN201721390816 U CN 201721390816U CN 207470798 U CN207470798 U CN 207470798U
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- rotation axis
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- outer framework
- dead zone
- door outer
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Abstract
The utility model discloses a kind of no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing, including air door outer framework, rotation axis, blade, seal assembly and Electric Actuator, rotation axis are arranged on inside air door outer framework, blade is symmetrically fixed on the rotating shaft two-by-two, rocking bar is provided on one end extension of rotation axis, is connected between rocking bar by connecting rod, seal assembly includes being socketed in rotation axis periphery graphite grazing component and rubber seal element.Four blades of the utility model are symmetrically to install, and adjacent two panels blade direction of rotation be it is opposite, so air quantity can each area uniformly through so that air quantity is more uniform.Set flexible viton seal ring, sealing effect is more preferable, and rubber seal is splitted, and installation replacement sealing element is simple and convenient, more conducively repair and maintenance.
Description
Technical field
The utility model belongs to electric adjustable air doors technical field, and in particular to a kind of no dead zone shaft end band flexible sealing is resistance to
Grind electric adjustable air doors.
Background technology
During the boiler operatiopn in power plant, need to be transported in boiler by the ground coal dust of coal pulverizer by hot wind,
Most of Industrial Boilers are all using multi-leaf damper, and the direction of leafy door rotation is consistent, and the rotation axis of Most current air door
Shaft end be not provided with flexible seals, only simple packing_seal, leafy door-plate direction of rotation can unanimously cause to open
Uneven with air quantity during adjusting, shaft end packing_seal can leak out, and leaking out, which can be such that coal dust is discharged together with gas, causes ring
It pollutes in border.And it is also and inconvenient to replace sealing element.
Utility model content
Purpose of utility model：In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of air quantity tune
Section it is uniform, good seal without dead zone shaft end band the wear-resisting electric adjustable air doors of flexible sealing.
Technical solution：In order to realize above-mentioned purpose of utility model, the technical solution adopted in the utility model is as follows：
A kind of no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing, including air door outer framework, rotation axis, blade,
Seal assembly and Electric Actuator, the front surface and rear surface of the air door outer framework offer front and rear four groups of bearings being aligned
Hole, bearing is provided in the bearing hole, and the rotation axis is arranged on inside air door outer framework and is inserted into bearing, the blade
Symmetrical two-by-two to fix on the rotating shaft, one end of the rotation axis is extend out to outside air door outer framework, and in extension
On be provided with rocking bar, connected between the rocking bar by connecting rod, the end of the end of the rocking bar and connecting rod is cut with scissors
It connects, is connected with Electric Actuator in one of rotation axis in two intermediate rotation axis, the seal assembly is set
It puts between the front surface of rocking bar and air door outer framework, the seal assembly includes the graphite grazing for being socketed in rotation axis periphery
Component and rubber seal element, the rubber seal element are located at the outside of graphite grazing component.
Preferably, the graphite grazing component includes the flexible graphite sealing set for being socketed in rotation axis periphery and graphite is close
Big envelope gland, the rubber seal element include being mounted on the rubber seal and rubber seal on the outside of graphite grazing jacket gland
Gland.
Preferably, the rubber seal is the flexible viton seal ring being broken away.
Preferably, first bearing seat is provided on the outside of the bearing of the air door outer framework front surface, in the flexibility
The periphery of graphite grazing set is provided with the sleeve of fixed flexible graphite sealing set.One end of the sleeve is connect with bearing block, separately
One end is connect with graphite grazing jacket gland.
Preferably, the bearing is self-lubricating bearing, axis is provided on the outside of the bearing of the air door outer framework rear surface
Socket end lid.
Preferably, further including the bearing being fixed on air door outer framework outer wall, the Electric Actuator is mounted on bearing
On.
Advantageous effect：Compared with prior art, the utility model has the following advantages：
Four blades of the utility model are symmetrically to install, and adjacent two panels blade direction of rotation is opposite, institute
With air quantity can each area uniformly through so that air quantity is more uniform.Set flexible viton seal ring, sealing effect is more
Good, rubber seal is splitted, so the rubber seal gland that need to only dismantle when replacement, it is possible to remove rubber seal
The rubber seal more renewed is enclosed, sealing effect is good, and during use, disassembling, assembling and replacing sealing element is simple and convenient, more conducively overhauls
It safeguards.
Description of the drawings
Fig. 1 is no dead zone shaft end band wear-resisting electric adjustable air doors structure diagram of flexible sealing；
Fig. 2 is no dead zone shaft end band wear-resisting electric adjustable air doors connecting rod structure diagram of flexible sealing；
Fig. 3 is no dead zone shaft end band wear-resisting electric adjustable air doors blade construction schematic diagram of flexible sealing；
Fig. 4 is no dead zone shaft end band wear-resisting electric adjustable air doors seal assembly enlarged drawing of flexible sealing；
Fig. 5 is no dead zone shaft end band wear-resisting electric adjustable air doors bearing gland enlarged drawing of flexible sealing.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, embodiment is with the utility model skill
Implemented under premised on art scheme, it should be understood that these embodiments are merely to illustrate the utility model rather than limit this practicality
Novel range.
As shown in Figures 1 to 4, a kind of no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing, mainly including air door
Outer framework 1, rotation axis 2, blade 3, seal assembly 4 and Electric Actuator 5 are further included and are fixed on 1 outer wall of air door outer framework
Bearing 9, the Electric Actuator 5 are mounted on bearing 9.
The front surface and rear surface of air door outer framework 1 offer front and rear four groups of bearing holes being aligned, and are provided in bearing hole
Bearing 6, rotation axis 2 are arranged on 1 inside of air door outer framework and are inserted into bearing 6, and blade 3 is symmetrically fixed on rotation axis 2 two-by-two
On, one end of rotation axis 2 is extend out to outside air door outer framework 1, and rocking bar 7 is provided on extension, each to wave
It is connected between bar 7 by connecting rod 8, the end and the end of connecting rod 8 of rocking bar 7 are hinged, positioned at two intermediate rotations
Electric Actuator 5 is connected in one of rotation axis in axis 2.
Rotation axis 2 includes the first rotation axis 21, the second rotation axis 22,23 and of third rotation axis set gradually from top to bottom
4th rotation axis 24, is fixedly installed rocking bar 7 in each rotation axis 2, and the first rotation axis 21 and the 4th rotation axis 24 are shaken
Swing rod 7 is unidirectional rocking bar, and the rocking bar 7 in the second rotation axis 22 and third rotation axis 23 is sway in both directions bar.Electronic execution
The output shaft 51 of device 5 is connect with the second rotation axis 22 or third rotation axis 23.Electric Actuator 5 is opened, in Electric Actuator 5
Motor the second rotation axis 22 or third rotation axis 23 is driven to rotate, other rotation axis are in the effect of rocking bar 7 and connecting rod 8
Lower synchronous rotary, and the direction of rotation of two neighboring rotation axis is on the contrary, the direction of rotation so as to two neighboring blade 3 is opposite
(as shown in Figure 3), so air quantity each area uniformly through.Be additionally provided in the end of the 4th rotation axis 24 pointer 10 and to
The direction board 11 of conjunction to indicate the angle of the rotation of rotation axis 2, facilitates external observation.
Bearing 6 is self-lubricating bearing, and 6 outside of bearing of 1 rear surface of air door outer framework is provided with bearing (ball) cover 61.In air door
6 outside of bearing of 1 front surface of outer framework is provided with first bearing seat 62, and bearing and phase are also equipped in the outermost end of rotation axis 2
The second bearing seat 63 of cooperation.
Seal assembly 4 is arranged between the front surface of rocking bar 7 and air door outer framework 1, and seal assembly 4, which includes being socketed in, to be turned
The graphite grazing component 41 of 2 periphery of moving axis and rubber seal element 42, rubber seal element 42 are located at graphite grazing component 41
Outside.Graphite grazing component 41 includes the flexible graphite sealing set 411 for being socketed in 2 periphery of rotation axis and graphite grazing jacket gland
412.Rubber seal element 42 includes being mounted on the rubber seal 421 and rubber seal in 412 outside of graphite grazing jacket gland
Gland 422.Rubber seal 421 is the flexible viton seal ring being broken away.In the periphery setting of flexible graphite sealing set 411
There is the sleeve 43 of fixed flexible graphite sealing set 411.One end of sleeve 43 is connect with bearing block 62, the other end and graphite grazing set
Gland 412 connects.
Four blades of the utility model are symmetrically to install, and adjacent two panels blade direction of rotation is opposite, institute
With air quantity can each area uniformly through so that air quantity is more uniform.The flexible viton seal ring added, sealing effect is more
Good, rubber seal is splitted, so the rubber seal gland that need to only dismantle when replacement, it is possible to remove rubber seal
The rubber seal more renewed is enclosed, sealing effect is good, and during use, disassembling, assembling and replacing sealing element is simple and convenient, more conducively overhauls
It safeguards.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, under the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing, it is characterised in that：Including air door outer framework (1),
Rotation axis (2), blade (3), seal assembly (4) and Electric Actuator (5), the front surface of the air door outer framework (1) and rear table
Face offers front and rear four groups of bearing holes being aligned, and is provided with bearing (6) in the bearing hole, the rotation axis (2) is arranged on wind
Frame (1) is internal outdoors and is inserted into bearing (6), and the blade (3) is symmetrically fixed on two-by-two in rotation axis (2), described turn
One end of moving axis (2) extend out to air door outer framework (1) outside, and rocking bar (7) is provided on extension, described to wave
It is connected between bar (7) by connecting rod (8), the end and the end of connecting rod (8) of the rocking bar (7) are hinged, in
Between two rotation axis (2) in one of rotation axis (2) on be connected with Electric Actuator (5), the seal assembly (4) sets
It puts between the front surface of rocking bar (7) and air door outer framework (1), the seal assembly (4) is including being socketed in rotation axis (2) outside
The graphite grazing component (41) in week and rubber seal element (42), the rubber seal element (42) is positioned at graphite grazing component
(41) outside.
2. the no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing according to claim 1, it is characterised in that：It is described
Graphite grazing component (41) is including being socketed in the flexible graphite sealing set (411) of rotation axis (2) periphery and graphite grazing jacket gland
(412), the rubber seal element (42) includes the rubber seal (421) that is mounted on the outside of graphite grazing jacket gland (412)
With rubber seal gland (422).
3. the no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing according to claim 2, it is characterised in that：It is described
Rubber seal (421) is the flexible viton seal ring being broken away.
4. the no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing according to claim 3, it is characterised in that：Institute
It states and is provided with first bearing seat (62) on the outside of the bearing (6) of air door outer framework (1) front surface, in the flexible graphite sealing set
(411) periphery is provided with the sleeve (43) of fixed flexible graphite sealing set (411).
5. the no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing according to claim 1, it is characterised in that：It is described
Bearing (6) is self-lubricating bearing, and bearing (ball) cover (61) is provided on the outside of the bearing (6) of air door outer framework (1) rear surface.
6. the no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing according to claim 1, it is characterised in that：Also wrap
The bearing (9) being fixed on air door outer framework (1) outer wall is included, the Electric Actuator (5) is on bearing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721390816.5U CN207470798U (en) | 2017-10-26 | 2017-10-26 | A kind of no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721390816.5U CN207470798U (en) | 2017-10-26 | 2017-10-26 | A kind of no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470798U true CN207470798U (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721390816.5U Active CN207470798U (en) | 2017-10-26 | 2017-10-26 | A kind of no dead zone shaft end band wear-resisting electric adjustable air doors of flexible sealing |
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| CN (1) | CN207470798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536246A (en) * | 2020-05-04 | 2020-08-14 | 盐城宝泽电力石化机械制造有限公司 | Adjustable baffle type isolation door for power plant and use method |
-
2017
- 2017-10-26 CN CN201721390816.5U patent/CN207470798U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536246A (en) * | 2020-05-04 | 2020-08-14 | 盐城宝泽电力石化机械制造有限公司 | Adjustable baffle type isolation door for power plant and use method |
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