CN207807600U - A kind of draught fan impeller dismantling device - Google Patents
A kind of draught fan impeller dismantling device Download PDFInfo
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- CN207807600U CN207807600U CN201721895615.0U CN201721895615U CN207807600U CN 207807600 U CN207807600 U CN 207807600U CN 201721895615 U CN201721895615 U CN 201721895615U CN 207807600 U CN207807600 U CN 207807600U
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- impeller
- hole
- mandril
- crossbeam
- jogger
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Abstract
The utility model is related to the technical fields of component of machine dismantling device, disclose a kind of draught fan impeller dismantling device, dismantling device includes crossbeam, main jogger hole, secondary jogger hole and press part, main mandril is threadedly coupled with crossbeam, secondary mandril and crossbeam clearance fit, wherein, there is axis hole in the end set of transmission shaft, impeller bore is set on impeller, impeller bore and axis hole are threaded hole, when assembling impeller, the lower end thread connection of axis hole and secondary mandril, when dismantling impeller, the lower end thread connection of impeller bore and secondary mandril.Since disassembly process uses static stress, damage will not be generated to impeller, while operating also more safe.
Description
Technical field
The utility model is related to the technical field of component of machine dismantling device, more particularly to a kind of draught fan impeller dismounts work
Tool.
Background technology
Impeller on wind turbine is due to complicated, mostly curved-surface structure, therefore dismounting gets up to be inconvenient, more especially
It is especially inconvenient for large-scale wind turbine, as in nuclear power station ventilation, cooling system is in preventative maintenance or defect processing repair
It needs to dismount draught fan impeller, currently, the method tapped usually using copper rod and hand hammer is by dismounting impeller, in disassembly process
The smoothness of impeller end face may be damaged or since unbalance stress may cause impeller to kill and can not dismount with transmission shaft, this method
Not only efficiency is low, long in time limit, dismounting is difficult, can also be asked to nuclear island inner impeller maintenance increase personnel's collective radiation dosage etc. is engaged in
Topic.
Utility model content
The purpose of this utility model is to provide a kind of draught fan impeller dismantling devices, it is intended to solve in the prior art for wind
The problem of the dismounting impeller trouble of machine.
The utility model is realized in this way a kind of draught fan impeller dismantling device, the wind turbine includes transmission shaft and leaf
Wheel, the impeller are formed with location hole, and the location hole is interference fitted with the transmission shaft, and the dismantling device includes：
Crossbeam, offers main jogger hole and secondary jogger hole thereon, and the main jogger hole is threaded hole；
Main mandril, with the main jogger hole thread connection；
Secondary mandril, when assembling the impeller, it is described pair mandril downward pass through the main jogger hole and with the main mandril
Interporal lacuna coordinates, and when dismantling the impeller, the lower end of the pair mandril passes through the secondary jogger hole and pushed up with the pair downward
Rod aperture clearance fit, thread connection has a nut on the pair mandril, and when cap rotation compresses the crossbeam, to drive
The relatively described crossbeam of secondary jogger hole is stated to rise or fall,
Press part is set between the impeller and the crossbeam when assembling the impeller, and compresses the impeller respectively
And the crossbeam,
Wherein, have axis hole in the end set of the transmission shaft, impeller bore be set on the impeller, the impeller bore with
And the axis hole is threaded hole, and when assembling the impeller, the lower end thread connection of the axis hole and the secondary mandril,
When dismantling the impeller, the lower end thread connection of the impeller bore and the secondary mandril.
Further, there are two the secondary jogger holes, two secondary jogger holes to be separately positioned on for setting on the crossbeam
The both sides of the main jogger hole, and the secondary mandril is respectively arranged in two secondary jogger holes, on two secondary mandrils respectively
Thread connection has the nut.
Further, the press part is cylindrical in shape, and when assembling the impeller, the press part is sleeved on the secondary mandril
On, and upper end compresses the crossbeam, lower end compresses the impeller.
Further, the section of beam be in H-type, including two pieces of beam slabs being arranged parallel to and it is two pieces vertical described in
Beam slab and the web being arranged between two pieces of beam slabs, the web is horizontally disposed and opens up the main jogger hole and pair thereon
Jogger hole.
Further, two secondary jogger holes are waist-shaped hole.
Further, the upper end of the main mandril is provided with tightening portion.
Compared with prior art, a kind of draught fan impeller dismantling device provided by the utility model is provided with crossbeam, main mandril
And secondary mandril, when being dismantled to draught fan impeller, main mandril passes through the main jogger hole on crossbeam and connects with its screw thread downward
After connecing, transmission shaft is abutted, then auxiliary driving bar is passed through to the secondary jogger hole on crossbeam downward and is threadedly coupled with impeller bore, by spiral shell
Cap is connected to the upper end higher than crossbeam vertical height of auxiliary driving bar, by rotating main mandril, so that crossbeam is relative to master
Mandril is moved upwardly by, and crossbeam just pulls secondary mandril to be moved upwardly by after being moved upwardly by, and then impeller is pulled out from transmission shaft；
When being assembled to draught fan impeller, press part is added, secondary mandril is inserted into rear and main jogger hole in main jogger hole
Clearance fit, and the lower end of secondary mandril is threadedly coupled with axis hole, then by nut be connected to auxiliary driving bar higher than crossbeam
The upper end of vertical height, press part is placed between crossbeam and impeller, and compresses crossbeam and impeller respectively, by rotating spiral shell
Cap so that crossbeam moves downward relative to secondary mandril, and crossbeam compresses impeller by press part, and then by impeller compress into
Transmission shaft completes installation；
Such structure and operation, since disassembly process uses static stress, there is no what is generated with iron hammer to rush
It hits power, therefore damage will not be generated to impeller, while operating also more safe, then turned bolt by then passing through and generated
Centripetal force greatly reduces driving force when dismounting so that disassembly process is very light.
Description of the drawings
Fig. 1 is a kind of stereoscopic schematic diagram for draught fan impeller dismantling device that the utility model embodiment provides；
Fig. 2 is the schematic top plan view for the crossbeam that the utility model embodiment provides.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The same or similar label correspond to the same or similar components in the attached drawing of the present embodiment；In retouching for the utility model
In stating, it is to be understood that if it is based on attached drawing to have the orientation or positional relationship of the instructions such as term "upper", "lower", "left", "right"
Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indicate or imply institute
The device or element of finger must have a particular orientation, with specific azimuth configuration and operation, therefore position described in attached drawing is closed
The term of system only for illustration, should not be understood as the limitation to this patent, for those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term as the case may be.
The realization of the utility model is described in detail below in conjunction with specific embodiment.
Referring to Fig.1 shown in -2, preferred embodiment is provided for the utility model.
A kind of draught fan impeller dismantling device, wind turbine include transmission shaft and impeller, and impeller is formed with location hole, location hole with
Transmission shaft is interference fitted, and dismantling device includes crossbeam 100, main mandril 220, secondary mandril 210 and press part 300, on crossbeam 100
Main jogger hole 112 and secondary jogger hole 111 are offered, main jogger hole 112 is threaded hole；Main mandril 220 and 112 spiral shell of main jogger hole
Line couples；Secondary mandril 210 when assembling impeller, downward pass through main jogger hole 112 and with 112 clearance fit of main jogger hole, tearing open
When unloading impeller, the lower end of secondary mandril 210 pass through downward secondary jogger hole 111 and with 111 clearance fit of secondary jogger hole, secondary mandril 210
Upper thread connection has nut 211, nut 211 to compress crossbeam 100 when rotating, to drive secondary jogger hole 111 with respect on crossbeam 100
It rises or declines, press part 300 is set between impeller and crossbeam 100 when assembling impeller, and compresses impeller and crossbeam respectively
100, wherein have axis hole in the end set of transmission shaft, impeller bore is set on impeller, impeller bore and axis hole are screw thread
Hole, when assembling impeller, the lower end thread connection of axis hole and secondary mandril 210, when dismantling impeller, impeller bore and secondary mandril
210 lower end thread connection.
A kind of draught fan impeller dismantling device provided in this embodiment, when being dismantled to draught fan impeller, 220 court of main mandril
Under main jogger hole 112 on crossbeam 100 and after being threadedly coupled with it, abut transmission shaft, then wear secondary mandril 210 downward
The secondary jogger hole 111 crossed on crossbeam 100 is simultaneously threadedly coupled with impeller bore, is higher than crossbeam by what nut 211 was connected to auxiliary driving bar
The upper end of 100 vertical heights, by rotating main mandril 220, so that crossbeam 100 is moved upwardly by relative to main mandril 220, it is horizontal
Beam 100 just pulls secondary mandril 210 to be moved upwardly by after being moved upwardly by, and then impeller is pulled out from transmission shaft.
When being assembled to draught fan impeller, add press part 300, secondary mandril 210 be inserted into main jogger hole 112 after with
112 clearance fit of main jogger hole, and the lower end of secondary mandril 210 is threadedly coupled with axis hole, and nut 211 is then connected to pair
The upper end higher than 100 vertical height of crossbeam of mandril, press part 300 is placed between crossbeam 100 and impeller, and compress cross respectively
Beam 100 and impeller pass through rotating screw cap 211 so that crossbeam 100 moves downward relative to secondary mandril 210, and crossbeam 100 passes through
Press part 300 compresses impeller, and then impeller is compressed into transmission shaft, completes installation.
Such structure and operation, since disassembly process uses static stress, there is no what is generated with iron hammer to rush
It hits power, therefore damage will not be generated to impeller, while operating also more safe, then turned bolt by then passing through and generated
Centripetal force greatly reduces driving force when dismounting so that disassembly process is very light.
In the present embodiment, there are two secondary jogger holes 111, two secondary jogger holes 111 to be separately positioned on for setting on crossbeam 100
The both sides of main jogger hole 112, and secondary mandril 210 is respectively arranged in two secondary jogger holes 111, on two secondary mandrils 210 respectively
Thread connection has nut 211, certainly, also coordinates two secondary mandrils 210, setting provided with two impeller bores accordingly on impeller
The benefit of two secondary mandrils 210 is by secondary jogger hole 111 to head into transmission shaft or extraction so that the stress of impeller compares balance
When transmission shaft, be not in tilt, also have certain protective effect to location hole and transmission shaft, will not make its because for a long time dismount after
There is larger abrasion.
In the present embodiment, press part 300 is cylindrical in shape, and passes through main mandril 220, and such press part 300 is by main mandril 220
It is limited, is just not in the phenomenon that collapsing, positioning is more firm, and tubular structure is but also it more enough bears
The stress of bigger.
In the present embodiment, 100 section of crossbeam is in H-type, including two pieces of mainboards being arranged parallel to and two pieces vertical
Beam slab 120 and the web 110 being arranged between two pieces of beam slabs 120, web 110 it is horizontally disposed and open up thereon main jogger hole 112 with
And secondary jogger hole 111, it can be made to bear the stress of bigger in 100 structure of crossbeam of H-type.
In the present embodiment, in order to adapt to the spacing of different impeller bores to adapt to different size of impeller into
Row dismounting, it is waist-shaped hole to be set as two secondary jogger holes 111, makes definition to waist-shaped hole here, and waist-shaped hole is by rectangle
Two parallel short sides in hole are changed to semicircular cavernous structure.Such structure makes the spacing of two secondary mandrils 210
Become to adjust, greatly enhances the suitability of the present apparatus.
In the present embodiment, the upper end of main mandril 220 is provided with tightening portion 221, is tightened using the clamping of the tools such as spanner
Portion 211, then rotating spanner, which can be realized, makes main mandril 220 rotate synchronously, and spanner can increase the main mandril active force of rotation
The arm of force, rotating main mandril 220 can be more effortless.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.
Claims (6)
1. a kind of draught fan impeller dismantling device, the wind turbine includes transmission shaft and impeller, and the impeller is formed with location hole, institute
It states location hole and the transmission shaft to be interference fitted, which is characterized in that the dismantling device includes：
Crossbeam, offers main jogger hole and secondary jogger hole thereon, and the main jogger hole is threaded hole；
Main mandril, with the main jogger hole thread connection；
Secondary mandril, when assembling the impeller, the pair mandril passes through the main jogger hole and downward between the main jogger hole
Gap coordinates, when dismantle the impeller, the lower end of the pair mandril pass through downward the secondary jogger hole and with the pair jogger hole
Clearance fit, thread connection has a nut on the pair mandril, and when cap rotation compresses the crossbeam, to drive the pair
The relatively described crossbeam of jogger hole rises or falls,
Press part is set when assembling the impeller between the impeller and the crossbeam, and compress respectively the impeller and
The crossbeam,
Wherein, there is axis hole in the end set of the transmission shaft, impeller bore, the impeller bore and institute are set on the impeller
It is threaded hole to state axis hole, and when assembling the impeller, the lower end thread connection of the axis hole and the secondary mandril is being dismantled
When the impeller, the lower end thread connection of the impeller bore and the secondary mandril.
2. a kind of draught fan impeller dismantling device as described in claim 1, which is characterized in that there are two institutes for setting on the crossbeam
Secondary jogger hole is stated, two secondary jogger holes are separately positioned on the both sides of the main jogger hole, and in two secondary jogger holes respectively
It is provided with the secondary mandril, thread connection has the nut respectively on two secondary mandrils.
3. a kind of draught fan impeller dismantling device as claimed in claim 2, which is characterized in that the press part is cylindrical in shape, and is being filled
When with the impeller, the press part is sleeved on the secondary mandril, and upper end compresses the crossbeam, and lower end compresses the impeller.
4. a kind of draught fan impeller dismantling device as claimed in claim 3, which is characterized in that the section of beam is in H-type, including
Two pieces of beam slabs being arranged parallel to and vertical two pieces of beam slabs and the web being arranged between two pieces of beam slabs, the abdomen
The main jogger hole and secondary jogger hole are arranged and opened up thereon to plate level.
5. a kind of draught fan impeller dismantling device as claimed in claim 4, which is characterized in that two secondary jogger holes are waist
Type hole.
6. a kind of draught fan impeller dismantling device as described in claim 1-5 any one, which is characterized in that the main mandril
Upper end is provided with tightening portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721895615.0U CN207807600U (en) | 2017-12-29 | 2017-12-29 | A kind of draught fan impeller dismantling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721895615.0U CN207807600U (en) | 2017-12-29 | 2017-12-29 | A kind of draught fan impeller dismantling device |
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| Publication Number | Publication Date |
|---|---|
| CN207807600U true CN207807600U (en) | 2018-09-04 |
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ID=63327971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721895615.0U Active CN207807600U (en) | 2017-12-29 | 2017-12-29 | A kind of draught fan impeller dismantling device |
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| CN (1) | CN207807600U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111745591A (en) * | 2020-06-24 | 2020-10-09 | 中国人民解放军第五七一九工厂 | Dismounting device for low-pressure oil filter shell of aircraft engine |
| CN114643556A (en) * | 2022-04-01 | 2022-06-21 | 成都海光核电技术服务有限公司 | Dismounting device and assembly quality of fan wheel |
| CN114670149A (en) * | 2022-03-31 | 2022-06-28 | 华能伊敏煤电有限责任公司 | Impeller dismantling device with damping |
-
2017
- 2017-12-29 CN CN201721895615.0U patent/CN207807600U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111745591A (en) * | 2020-06-24 | 2020-10-09 | 中国人民解放军第五七一九工厂 | Dismounting device for low-pressure oil filter shell of aircraft engine |
| CN114670149A (en) * | 2022-03-31 | 2022-06-28 | 华能伊敏煤电有限责任公司 | Impeller dismantling device with damping |
| CN114670149B (en) * | 2022-03-31 | 2023-07-21 | 华能伊敏煤电有限责任公司 | Impeller dismantling device with damping |
| CN114643556A (en) * | 2022-04-01 | 2022-06-21 | 成都海光核电技术服务有限公司 | Dismounting device and assembly quality of fan wheel |
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