CN210265247U - Fan transmission shaft of hollow split type structure - Google Patents
Fan transmission shaft of hollow split type structure Download PDFInfo
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- CN210265247U CN210265247U CN201921123007.7U CN201921123007U CN210265247U CN 210265247 U CN210265247 U CN 210265247U CN 201921123007 U CN201921123007 U CN 201921123007U CN 210265247 U CN210265247 U CN 210265247U
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Abstract
A fan transmission shaft with a hollow split structure comprises a carbon fiber hollow shaft, wherein a shaft seal and a shaft sleeve are respectively installed at two ends of the carbon fiber hollow shaft, one end of the shaft seal is inserted into an inner hole of the carbon fiber hollow shaft, two circles of pin holes are respectively formed in two ends of the carbon fiber hollow shaft, each circle of pin holes are a plurality of radial through holes which are uniformly distributed at intervals along the circumferential direction of the carbon fiber hollow shaft, two circles of pin holes are formed in the shaft sleeve, the pin holes of the shaft sleeve are respectively aligned with two circles of pin holes at the same end of the carbon fiber hollow shaft one by one, one circle of pin holes are formed in one end, inserted in the carbon fiber hollow shaft; positioning pins are inserted into all aligned pin holes on the carbon fiber hollow shaft, the shaft sleeve and the shaft seal; epoxy resin is filled between the carbon fiber hollow shaft and the outer wall of the shaft seal and the inner wall of the shaft sleeve and is used for curing and bonding the carbon fiber hollow shaft, the shaft seal and the shaft sleeve into a whole.
Description
Technical Field
The utility model relates to a fan transmission shaft field especially relates to a fan transmission shaft of hollow split type structure.
Background
The fan transmission shaft is an important component of the fan, the fan transmission shaft is generally erected in a fan shell through a pair of bearings, a fan impeller is sleeved on the transmission shaft, and the transmission shaft is connected with a motor through transmission components such as a motor wheel disc, so that the power of the motor is transmitted to drive the impeller to rotate. In order to meet the use requirement of the fan and improve the performance of the fan, the fan transmission shaft needs to be light in weight so as to reduce the operation load of the fan and increase wind power, and the fan transmission shaft also needs to have strong anti-seismic performance so as to reduce the noise in the operation process of the fan. The existing fan transmission shaft is usually made of metal, the weight is large, a hollow shaft can be adopted for reducing the weight, but the anti-seismic performance of the hollow shaft made of metal is insufficient, the noise is large during operation, and the hollow shaft made of metal is easy to corrode and cannot be used in a severe environment.
A carbon fibre material is a new type of fibre material which uses resin as matrix, carbon fibre as reinforcing material and high-strength and high-modulus fibre with carbon content above 90%, and is a microcrystal graphite material which is made up by using organic fibres of flake graphite microcrystal, etc. and adopting the processes of piling up along the axial direction of fibre, carbonization and graphitization treatment. The carbon fiber material is lighter than metal aluminum in weight, higher than steel in strength, corrosion resistant and vibration resistant, has the soft processability of textile fiber, and is an important material in the aspects of national defense, military industry and civil use. The hollow fan transmission shaft made of the carbon fiber material has the advantages that the weight is greatly lower than that of a metal hollow shaft with the same size, the strength is higher than that of the metal hollow shaft, and the anti-seismic performance of the carbon fiber hollow shaft is higher than that of the metal hollow shaft due to the fact that the carbon fiber material is high in anti-seismic performance, so that the defect of the hollow fan transmission shaft made of the metal material can be overcome.
However, the fan transmission shaft needs to be provided with parts such as an impeller, a bearing and a motor wheel disc, the parts are all made of metal, the bearing made of metal needs to be sleeved on the shaft made of metal, namely, the bearing and the related parts need to be in contact with each other, the rest of the impeller and the motor wheel disc need to be in contact with each other to better exert performance, and the hollow fan transmission shaft made of carbon fiber is difficult to directly use. Although the structure that installs metal semi-axis joint additional at carbon fiber's hollow fan transmission shaft both ends has been proposed among the prior art, the joint strength between semi-axis joint and the carbon fiber hollow shaft body is not enough to precision when semi-axis joint and carbon fiber hollow shaft body synchronous rotation is also relatively poor, causes the performance and the life-span decline of fan transmission shaft.
SUMMERY OF THE UTILITY MODEL
For solving the problem of above-mentioned current fan transmission shaft, the utility model provides a fan transmission shaft of hollow split type structure.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: a fan transmission shaft with a hollow split structure comprises a carbon fiber hollow shaft, wherein shaft seals made of metal materials are respectively arranged at two ends of the carbon fiber hollow shaft, each shaft seal is of a hollow columnar structure, one end of each shaft seal is matched with the inner diameter of the carbon fiber hollow shaft and is inserted into an inner hole of the carbon fiber hollow shaft, and a shaft shoulder in the middle of each shaft seal is pressed on the end face of the carbon fiber hollow shaft; two ends of the carbon fiber hollow shaft are respectively sleeved with a shaft sleeve made of metal, and the shaft sleeves extend from the end part of the carbon fiber hollow shaft to the middle part of the carbon fiber hollow shaft along the corresponding outer circle circumference inserted in the shaft seal position; two circles of pin holes are respectively formed in two ends of the carbon fiber hollow shaft, each circle of pin holes are a plurality of radial through holes which are uniformly distributed at intervals along the circumferential direction of the carbon fiber hollow shaft, two circles of pin holes are formed in the shaft sleeve, the pin holes of the shaft sleeve are respectively aligned with the two circles of pin holes in the same end of the carbon fiber hollow shaft one by one, one end of the shaft seal inserted in the carbon fiber hollow shaft is provided with one circle of pin holes, and the pin holes of the shaft seal are aligned with the one circle of pin holes of the; positioning pins are inserted into all the aligned pin holes in the carbon fiber hollow shaft, the shaft sleeve and the shaft seal, and the length of each positioning pin is not less than the total length of the plurality of the aligned pin holes; epoxy resin is filled between the inner wall of the carbon fiber hollow shaft and the attached shaft seal outer wall and between the outer wall of the carbon fiber hollow shaft and the attached shaft sleeve inner wall, and is used for curing and bonding the carbon fiber hollow shaft, the shaft seal and the shaft sleeve into a whole.
Preferably, all the pin holes have the same diameter, and the number of the pin holes in each circle is four.
Preferably, the outer circumference of the shaft seal, which is far away from the carbon fiber hollow shaft, is provided with a thread.
Preferably, a key groove is formed in the outer circumference of the shaft seal, which is far away from the carbon fiber hollow shaft.
Preferably, the outer circumference of the shaft sleeve is provided with a thread and a key groove.
According to the technical scheme, the beneficial effects of the utility model are that:
the utility model provides a fan transmission shaft of hollow split type structure has adopted a carbon fiber hollow shaft as the main part of fan transmission shaft, makes fan transmission shaft compare weight lighter with traditional metal transmission shaft to the anti-seismic performance and the corrosion resisting property that make the fan transmission shaft are stronger.
The bearing seal and the axle sleeve of metal material are installed respectively to the both ends of carbon fiber hollow shaft, fan transmission epaxial bearing can the suit on the outer circumference of axle sleeve, and transmission assembly such as fan impeller and motor rim plate can be connected with the bearing seal, just can be under the prerequisite of carbon fiber material in the main part of fan transmission shaft, make the impeller, the bearing, and parts such as motor rim plate can be connected with the fan transmission shaft through the contact cooperation between the metal, avoid bearing etc. and carbon fiber material's transmission shaft direct contact and influence the use, guarantee that the performance of above-mentioned part obtains full play.
Epoxy resin is filled between the carbon fiber hollow shaft and the shaft seal and the shaft sleeve, the carbon fiber hollow shaft, the shaft seal and the shaft sleeve can be firmly bonded into a whole through the curing bonding action of the epoxy resin, the connection strength is improved, a plurality of pin holes which are aligned one by one are arranged between the carbon fiber hollow shaft and the shaft seal and the shaft sleeve, a positioning pin is inserted in each aligned pin hole, the carbon fiber hollow shaft, the shaft seal and the shaft sleeve can be tightly and accurately positioned, the torque can be transmitted through the positioning pin, and the positioning pin can be matched with the epoxy resin to drive the carbon fiber hollow shaft, the shaft seal and the shaft sleeve to synchronously rotate, so the utility model discloses the connection strength between the split structures in the fan transmission shaft of the split structure can be ensured through the matching of the bonding of the epoxy resin and the circumferential positioning action of the positioning pin, and further the precision when the, the service performance and the life-span of fan transmission shaft are promoted.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic cross-sectional view of fig. 1.
The labels in the figure are: 1. carbon fiber hollow shaft, 2, shaft seal, 3, axle sleeve, 4, pinhole, 5, screw thread, 6, keyway.
Detailed Description
Referring to the drawings, the specific embodiments are as follows:
a fan transmission shaft with a hollow split structure comprises a carbon fiber hollow shaft 1, wherein shaft seals 2 made of metal are respectively arranged at two ends of the carbon fiber hollow shaft 1, the shaft seals 2 are of a hollow cylindrical structure, one end of each shaft seal 2 is matched with the inner diameter of the carbon fiber hollow shaft 1 and is inserted into an inner hole of the carbon fiber hollow shaft 1, a shaft shoulder in the middle of each shaft seal 2 is pressed on the end face of the carbon fiber hollow shaft 1, key grooves 6 are respectively formed in the outer circumferences of the shaft seals 2 far away from the carbon fiber hollow shaft 1, threads 5 are further formed in the outer circumference of one shaft seal 2, a fan impeller can be installed on the shaft seal 2 with the threads in a matched mode through the key grooves 6 and the threads 5, and the shaft seal 2 at the other; the two ends of the carbon fiber hollow shaft 1 are respectively sleeved with a shaft sleeve 3 made of metal, the shaft sleeve 3 extends from the end part of the carbon fiber hollow shaft 1 to the middle part of the carbon fiber hollow shaft 1 in a corresponding excircle inserting position of a shaft seal 2, the outer circumference of the shaft sleeve 3 is provided with a thread 5 and a key groove 6, a pair of main bearings of a fan transmission shaft are respectively arranged on the outer circumferences of the two shaft sleeves 3, the inner diameter of each bearing is smaller than the maximum outer diameter of the shaft sleeve 3, when the carbon fiber hollow shaft is installed, the two bearings are respectively sleeved from the two ends of the fan transmission shaft to the middle part, the end surface of each bearing supports the maximum excircle part of the shaft sleeve 3, the boss formed by the maximum excircle of the shaft sleeve 3 limits the displacement of the bearing to the middle part of the fan transmission shaft, one side of the bearing far away from the middle part of the fan transmission shaft is positioned through, thereby fixing the bearing to the sleeve 3.
Two circles of pin holes 4 are respectively formed in two ends of the carbon fiber hollow shaft 1, each circle of pin holes 4 are a plurality of radial through holes which are uniformly distributed at intervals along the circumferential direction of the carbon fiber hollow shaft 1, two circles of pin holes 4 are formed in the shaft sleeve 3, the pin holes 4 of the shaft sleeve 3 are respectively aligned with the two circles of pin holes 4 at the same end of the carbon fiber hollow shaft 1 one by one, one end of the shaft seal 2 inserted in the carbon fiber hollow shaft 1 is provided with one circle of pin holes 4, the pin holes 4 of the shaft seal 2 are aligned with one circle of pin holes 4 of the carbon fiber hollow shaft 1 close to the shaft end one by one, the number of the pin holes 4; positioning pins are inserted into all the mutually aligned pin holes 4 on the carbon fiber hollow shaft 1, the shaft sleeve 3 and the shaft seal 2, and the length of each positioning pin is not less than the total length of the plurality of mutually aligned pin holes 4; epoxy resin is filled between the inner wall of the carbon fiber hollow shaft 1 and the outer wall of the shaft seal 2 which is attached to the carbon fiber hollow shaft and between the outer wall of the carbon fiber hollow shaft 1 and the inner wall of the shaft sleeve 3 which is attached to the carbon fiber hollow shaft, and is used for curing and bonding the carbon fiber hollow shaft 1, the shaft seal 2 and the shaft sleeve 3 into a whole, so that the carbon fiber hollow shaft 1, the shaft seal 2 and the shaft sleeve 3 can synchronously and accurately rotate.
Claims (5)
1. The utility model provides a fan transmission shaft of hollow split type structure which characterized in that: the carbon fiber hollow shaft comprises a carbon fiber hollow shaft (1), wherein two ends of the carbon fiber hollow shaft (1) are respectively provided with a shaft seal (2) made of metal, the shaft seal (2) is of a hollow columnar structure, one end of the shaft seal (2) is matched with the inner diameter of the carbon fiber hollow shaft (1) and is inserted into an inner hole of the carbon fiber hollow shaft (1), and a shaft shoulder in the middle of the shaft seal (2) is pressed on the end face of the carbon fiber hollow shaft (1); two ends of the carbon fiber hollow shaft (1) are respectively sleeved with a shaft sleeve (3) made of metal, and the shaft sleeves (3) extend from the end part of the carbon fiber hollow shaft (1) to the middle part of the carbon fiber hollow shaft (1) along the corresponding outer circumference where the shaft seal (2) is inserted; two circles of pin holes (4) are respectively formed in two ends of the carbon fiber hollow shaft (1), each circle of pin holes (4) is a plurality of radial through holes which are uniformly distributed at intervals along the circumferential direction of the carbon fiber hollow shaft (1), two circles of pin holes (4) are formed in the shaft sleeve (3), the pin holes (4) of the shaft sleeve (3) are respectively aligned with the two circles of pin holes (4) in the same end of the carbon fiber hollow shaft (1) one by one, one circle of pin holes (4) are formed in one end, inserted in the carbon fiber hollow shaft (1), of the shaft seal (2), and the pin holes (4) of the shaft seal (2) are aligned with one circle of pin holes (4) of the carbon fiber hollow shaft; positioning pins are inserted into all aligned pin holes (4) on the carbon fiber hollow shaft (1), the shaft sleeve (3) and the shaft seal (2), and the length of each positioning pin is not less than the total length of the plurality of the inserted aligned pin holes (4); epoxy resin is filled between the inner wall of the carbon fiber hollow shaft (1) and the outer wall of the attached shaft seal (2) and between the outer wall of the carbon fiber hollow shaft (1) and the inner wall of the attached shaft sleeve (3) for curing and bonding the carbon fiber hollow shaft (1), the shaft seal (2) and the shaft sleeve (3) into a whole.
2. The fan transmission shaft of hollow split structure according to claim 1, characterized in that: the diameters of all the pin holes (4) are equal, and the number of the pin holes (4) in each circle is four.
3. The fan transmission shaft of hollow split structure according to claim 1, characterized in that: and the outer circumference of the shaft seal (2) far away from the carbon fiber hollow shaft (1) is provided with a thread (5).
4. The fan transmission shaft of hollow split structure according to claim 1, characterized in that: the outer circumference of the shaft seal (2) far away from the carbon fiber hollow shaft (1) is provided with a key groove (6).
5. The fan transmission shaft of hollow split structure according to claim 1, characterized in that: the outer circumference of the shaft sleeve (3) is provided with a thread (5) and a key groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921123007.7U CN210265247U (en) | 2019-07-17 | 2019-07-17 | Fan transmission shaft of hollow split type structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921123007.7U CN210265247U (en) | 2019-07-17 | 2019-07-17 | Fan transmission shaft of hollow split type structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210265247U true CN210265247U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921123007.7U Active CN210265247U (en) | 2019-07-17 | 2019-07-17 | Fan transmission shaft of hollow split type structure |
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| CN (1) | CN210265247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345102A (en) * | 2019-07-17 | 2019-10-18 | 洛阳北玻台信风机技术有限责任公司 | A kind of blower transmission shaft of hollow split type structure |
-
2019
- 2019-07-17 CN CN201921123007.7U patent/CN210265247U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345102A (en) * | 2019-07-17 | 2019-10-18 | 洛阳北玻台信风机技术有限责任公司 | A kind of blower transmission shaft of hollow split type structure |
| CN110345102B (en) * | 2019-07-17 | 2024-03-12 | 洛阳北玻三元流风机技术有限公司 | Fan transmission shaft of hollow split type structure |
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Address after: 471000 Luoyang, Henan, Luoyang, China (Henan) free trade test zone, Luoyang section, Hi-tech Development Zone, Riverside Road No. 20 Patentee after: Luoyang Beibo sanyuanliu Fan Technology Co., Ltd Address before: 471000 Luoyang, Henan, Luoyang, China (Henan) free trade test zone, Luoyang section, Hi-tech Development Zone, Riverside Road No. 20 Patentee before: LUOYANG NORTHGLASS TAIXIN FAN TECHNOLOGY Co.,Ltd. |