CN103321940A - Balance shaft with taper sleeve and for balance fan impeller - Google Patents
Balance shaft with taper sleeve and for balance fan impeller Download PDFInfo
- Publication number
- CN103321940A CN103321940A CN 201310242516 CN201310242516A CN103321940A CN 103321940 A CN103321940 A CN 103321940A CN 201310242516 CN201310242516 CN 201310242516 CN 201310242516 A CN201310242516 A CN 201310242516A CN 103321940 A CN103321940 A CN 103321940A
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- CN
- China
- Prior art keywords
- balance
- taper sleeve
- fan impeller
- shaft
- tapered sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a balance shaft with a taper sleeve and for a balance fan impeller. The balance shaft comprises a spindle (1). The taper sleeve (3) is sleeved on the spindle (1), an axial groove (3.1) is formed in the taper sleeve (3), a locking disc (2) is further arranged on the spindle (1), and the locking disc (2) butts against the tail portion of the taper sleeve (3). The taper sleeve is in taper fit with the shaft, and under the effect of locking force, the problem of tolerance matching during assembling of the balance shaft and the fan impeller inner hole is solved effectively, unbalance margin is reduced, balance quality is greatly improved, a requirement for assembling and disassembling convenience is met, and the balance shaft is suitable for fan impellers produced in a batch mode and conducts balancing with high requirements.
Description
Technical field
The present invention relates to a kind of trunnion shaft, be applicable to the two-sided dynamic balancing on draught fan impeller balance and the hard bearing balan, belong to mechanical equipment technical field.
Background technique
The uneven surplus of draught fan impeller affects directly whether complete blower operation is stable, whether vibration exceeds standard, and the factor that affect most critical of impeller imbalance surplus is balancing main shaft and impeller endoporus mated condition; Trunnion shaft and impeller endoporus matching gap are less, and the uneven surplus that draws is less, and balancing mass is higher.
Need trunnion shaft and impeller endoporus matching gap less for this reason, and necessary easy accessibility, existing balance shaft structure is single, be difficult to satisfy the less requirement of uneven surplus permitted value, and tolerance range and the trunnion shaft cooperation place tolerance of the impeller endoporus existence of quantification production, in actual production, be difficult to both are worked good:
1. interference fit: balancing mass has improved, and but mounting or dismounting difficulty is taken a lot of work, time-consuming and easy damage, pulled endoporus and trunnion shaft;
2. Spielpassung: mounting or dismounting are convenient, but reduced balancing mass, thereby cause that easily vibration affect fan operation and stablizes;
3. transition fit: the problem of generation is between between the two above-mentioned.
And along with the blower fan mass production is made, particularly outstanding for the matching problem of draught fan impeller and trunnion shaft.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of minimizing uneven surplus, and the problem of tolerance fit when solving trunnion shaft and the assembling of draught fan impeller endoporus, and the trunnion shaft of easy accessibility.
The object of the present invention is achieved like this:
The band tapered sleeve trunnion shaft that a kind of balance draught fan impeller is used comprises main shaft, is characterized in: be arranged with tapered sleeve on the described main shaft, described tapered sleeve has axial groove, also is provided with locking plate on the described main shaft, and the afterbody of described locking plate and tapered sleeve offsets.
The band tapered sleeve trunnion shaft that a kind of balance draught fan impeller of the present invention is used, its well width is 2 ~ 3mm.
Compared with prior art, the invention has the beneficial effects as follows:
The band tapered sleeve trunnion shaft that a kind of balance draught fan impeller of the present invention is used, the taper fit of tapered sleeve and axle, in addition under the effect of coupling mechanism force, effectively solved trunnion shaft and the draught fan impeller endoporus tolerance fit problem when assembling, reduce the generation of uneven surplus, improved greatly balancing mass, satisfied the demand of easy accessibility, be applicable to the draught fan impeller of mass production, the balance of having relatively high expectations.
Description of drawings
Fig. 1 is the structural representation with the tapered sleeve trunnion shaft that a kind of balance draught fan impeller of the present invention is used.
Fig. 2 is the structural representation of tapered sleeve of the present invention.
Fig. 3 is the left view of Fig. 2.
Among the figure:
Main shaft 1,
Locking plate 2,
Tapered sleeve 3,
Groove 3.1.
Embodiment
Referring to Fig. 1-3, the present invention relates to the band tapered sleeve trunnion shaft that a kind of balance draught fan impeller is used, it comprises main shaft 1, be arranged with tapered sleeve 3 on the described main shaft 1, described tapered sleeve 3 has axial groove 3.1(and sees Fig. 3), also be provided with locking plate 2 on the described main shaft 1, described locking plate 2 offsets with the afterbody of tapered sleeve 3, on the described tapered sleeve 3 impeller is installed.
Working principle: tapered sleeve 3 and an amount of interference fit of main shaft 1 tapering, reduce the uneven surplus that produces because of fit tolerance zone when satisfying easy for installation and balance, tapered sleeve 3 has the axial groove of 2～3mm 3.1, to guarantee that tapered sleeve 3 can have an amount of distending and contraction, reach with this and to give trunnion shaft certain radially adjustment range, and the tapering self adaption satisfies cooperating of tapered sleeve 3 and impeller endoporus tolerance after compressing by locking plate 2.
Claims (2)
1. band tapered sleeve trunnion shaft that the balance draught fan impeller is used, comprise main shaft (1), it is characterized in that: be arranged with tapered sleeve (3) on the described main shaft (1), described tapered sleeve (3) has axial groove (3.1), also be provided with locking plate (2) on the described main shaft (1), described locking plate (2) offsets with the afterbody of tapered sleeve (3).
2. the band tapered sleeve trunnion shaft used of a kind of balance draught fan impeller according to claim 1, it is characterized in that: described groove (3.1) width is 2 ~ 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310242516 CN103321940A (en) | 2013-06-19 | 2013-06-19 | Balance shaft with taper sleeve and for balance fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310242516 CN103321940A (en) | 2013-06-19 | 2013-06-19 | Balance shaft with taper sleeve and for balance fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103321940A true CN103321940A (en) | 2013-09-25 |
Family
ID=49190906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310242516 Pending CN103321940A (en) | 2013-06-19 | 2013-06-19 | Balance shaft with taper sleeve and for balance fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103321940A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776048A (en) * | 2015-04-20 | 2015-07-15 | 瓦房店爱国轴承研究院有限公司 | Improvement mode of main shaft for water pump driving group |
| CN104791287A (en) * | 2015-04-20 | 2015-07-22 | 瓦房店爱国轴承研究院有限公司 | Modes for improving main shaft of blower transmission set |
| CN105386994A (en) * | 2015-12-16 | 2016-03-09 | 中车大连机车研究所有限公司 | Centrifugal compressor impeller locking structure |
-
2013
- 2013-06-19 CN CN 201310242516 patent/CN103321940A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776048A (en) * | 2015-04-20 | 2015-07-15 | 瓦房店爱国轴承研究院有限公司 | Improvement mode of main shaft for water pump driving group |
| CN104791287A (en) * | 2015-04-20 | 2015-07-22 | 瓦房店爱国轴承研究院有限公司 | Modes for improving main shaft of blower transmission set |
| CN105386994A (en) * | 2015-12-16 | 2016-03-09 | 中车大连机车研究所有限公司 | Centrifugal compressor impeller locking structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |