CN203384242U - Conical interference fit structure for heavy-duty hub - Google Patents
Conical interference fit structure for heavy-duty hub Download PDFInfo
- Publication number
- CN203384242U CN203384242U CN201320442805.2U CN201320442805U CN203384242U CN 203384242 U CN203384242 U CN 203384242U CN 201320442805 U CN201320442805 U CN 201320442805U CN 203384242 U CN203384242 U CN 203384242U
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- CN
- China
- Prior art keywords
- wheel hub
- adapter sleeve
- interference fit
- hexagon socket
- conus portion
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a conical interference fit structure for a heavy-duty hub. At present, in conical interference fit, the requirement for the processing accuracy of a fitting surface is high, and the assembly/disassembly is difficult. The conical interference fit structure for the heavy-duty hub, which is provided by the utility model, is characterized in that an opening with the width of 2 to 5 mm is formed in one side of the cone part of an adapter sleeve, a key slot is formed in the inner wall of the other side of the cone part, a flange part is formed at the major diameter part of the cone part of the adapter sleeve, and 2 to 8 first threaded holes used for connecting hubs are formed in the end surface of the flange part; 2 to 8 counter bored holes for mounting hexagon socket cap screws are formed in the minor diameter end surfaces of the cone parts of the hubs, the heads of the hexagon socket cap screws, penetrating the cone parts of the hubs longitudinally, are connected with the first threaded holes formed in the end surface of the flange part, and 2 to 4 second threaded holes for demounting the adapter sleeve are formed in the major diameter end of the cone part of each hub. The conical interference fit structure for the heavy-duty hub, which is provided by the utility model, has a compact structure, is ingenious in design, can use fastening screws for accomplishing assembling/disassembling, a demounting tool is not required to be equipped additionally, and the demounting is convenient and fast.
Description
Technical field
The utility model relates to large-scale fan propeller parts, specifically a kind of quickly assembled and disassembled heavily loaded wheel hub conic interference fit structure.
Background technique
The conical surface Desing of Interference Joint, in order to bear axial force or transmitting torque, is applicable to heavy duty, the large-scale connection that need to repeatedly install and remove.This Desing of Interference Joint is simple in structure, centering property is good, bearing capacity is strong, under variable load and impact condition, can work reliably, the belt pulley, the impeller hub that are widely used in large-scale ventilator, the conveying mechanism driving drum, the gearwheel of large-scale general machinery, large worm gear etc., but current conical surface Desing of Interference Joint requires the machining accuracy of fitting surface higher, and the mounting or dismounting difficulty.
The model utility content
Technical problem to be solved in the utility model is to overcome existing wheel hub conic interference fit to have the problem that mounting or dismounting are difficult, and a kind of quickly assembled and disassembled heavily loaded wheel hub conic interference fit structure is provided.
For this reason, the utility model adopts following technological scheme: a kind of heavily loaded wheel hub conic interference fit structure, comprise wheel hub and adapter sleeve, described wheel hub intermediate hole internal conical surface coordinates and is connected by hexagon socket cap head screw with the adapter sleeve outer conical surface, make both junction planes compress the formation Desing of Interference Joint, it is characterized in that, one side of the conus portion of described adapter sleeve has the wide opening of 2-5mm, the length of opening is consistent with the length of adapter sleeve, on the inwall of the opposite side of conus portion, keyway is set, the bigger diameter end of the conus portion of adapter sleeve forms flange part, have 2-8 on the end face of this flange part for the first tapped hole that connects wheel hub, the number of the first tapped hole is consistent with the number of hexagon socket cap head screw,
The path end face of described wheel hub conus portion is provided with 2-8 for the counterbore of hexagon socket cap head screw is installed, the number of counterbore is consistent with the number of the first tapped hole, the head that vertically runs through the hexagon socket cap head screw of wheel hub conus portion is connected with the first tapped hole on the flange part end face, the afterbody of hexagon socket cap head screw is placed in counterbore, the bigger diameter end of wheel hub conus portion is provided with 2-4 the second tapped hole for the dismounting adapter sleeve, during dismounting, the second tapped hole and hexagon socket cap head screw are used in conjunction with, adapter sleeve is progressively ejected in the wheel hub intermediate hole, the bigger diameter end of wheel hub conus portion is provided with a circle for the step of adapter sleeve flange part is installed.
As the further of technique scheme improved and supplement, the utility model adopts following technical measures:
One circle grinding wheel groove is set between the conus portion of described adapter sleeve and flange part, facilitates the processing of adapter sleeve.
A described 2-8 counterbore and 2-8 the first tapped hole all is circumferentially uniform, the utility model born respectively consistent to the ability of axial force or transmitting torque.
Described 2-4 the second tapped hole is circumferentially uniform, more convenient while making to dismantle.
The endoporus of described adapter sleeve is cylindrical, and the tapering of wheel hub and adapter sleeve is 1:7, convenient dismounting; The contact rate of both conical surfaces >=80%, guarantee closely to connect, and transmitting torque is reliable and stable.
The utility model compact structure, be skillfully constructed, utilize the screw of fastening use to complete mounting or dismounting, do not need the optional equipment extracting tool, mounting or dismounting easily and fast; The utility model is relatively low to the requirement on machining accuracy of fitting surface, and the roughness of wheel hub conus portion internal surface and adapter sleeve conus portion outer surface is Ra≤1.6 μ m, and the conical surface contact rate is not less than 80% and gets final product, and the tapering of wheel hub and adapter sleeve is 1:7; The mounting and dismounting method that the utility model conic interference fit adopts is simple, convenient, and the utility model also can be applicable to large-scale conveyor tool driving drum, the connection of the gearwheel of large-scale general machinery, large worm gear and axle etc.
The accompanying drawing explanation
Fig. 1-2 is the structural representation (the A-A view that Fig. 2 is Fig. 1) of the utility model wheel hub.
Fig. 3-4th, the structural representation of the utility model adapter sleeve (the A-A view that Fig. 4 is Fig. 3).
Fig. 5-6th, the structural representation (the A-A view that Fig. 6 is Fig. 5) after the utility model wheel hub and adapter sleeve assembling.
Fig. 7-8th, the stereogram after the utility model wheel hub and adapter sleeve assembling (Fig. 7 embodies the structure at wheel hub bigger diameter end place for emphasis, Fig. 8 embodies the structure at wheel hub miner diameter end place for emphasis).
Fig. 9-10th, the partial perspective view after the utility model wheel hub and adapter sleeve assembling (Fig. 9 embodies the structure at wheel hub bigger diameter end place for emphasis, Figure 10 embodies the structure at wheel hub miner diameter end place for emphasis).
Figure 11-12nd, the stereogram of the utility model adapter sleeve.
In figure, 1-wheel hub, 2-adapter sleeve, 3-hexagon socket cap head screw, 4-the first tapped hole, 5-counterbore, 6-the second tapped hole, 7-step, 21-opening, 22-keyway, 23-flange part, 24-grinding wheel groove.
Embodiment
Below by embodiment and in conjunction with Figure of description, the technical solution of the utility model is described in further detail.
Heavily loaded wheel hub conic interference fit as shown in the figure, wheel hub 1 intermediate hole internal conical surface coordinates and is connected by hexagon socket cap head screw 3 with adapter sleeve 2 outer conical surface, makes both junction planes compress the formation Desing of Interference Joint.One side of the conus portion of described adapter sleeve 2 has the wide opening of 2-5mm 21, the length of opening is consistent with the length of adapter sleeve, keyway 22 is set on the inwall of the opposite side of conus portion, the bigger diameter end of the conus portion of adapter sleeve forms flange part 23 integrated with it, have 4 numbers for the first tapped hole 4, the first tapped holes 4 that connect wheel hub on the end face of this flange part 23 consistent with the number of hexagon socket cap head screw 3.
The path end face of described wheel hub conus portion is provided with 4 counterbores 5 for hexagon socket cap head screw is installed, the number of counterbore is consistent with the number of the first tapped hole, the head that vertically runs through the hexagon socket cap head screw of wheel hub conus portion is connected with the first tapped hole 4 on the flange part end face, the afterbody of hexagon socket cap head screw is placed in counterbore 5, the bigger diameter end of wheel hub conus portion is provided with 2 the second tapped holes 6 for the dismounting adapter sleeve, during dismounting, the second tapped hole and hexagon socket cap head screw are used in conjunction with, adapter sleeve is progressively ejected in the wheel hub intermediate hole, the bigger diameter end of wheel hub conus portion is provided with the step 7 of a circle for the adapter sleeve flange part is installed.
One circle grinding wheel groove 24 is set between the conus portion of adapter sleeve and flange part.Described 4 counterbores 5 and 4 the first tapped holes 4 all are circumferentially uniform.Described 2 the second tapped holes 6 are circumferentially uniform.The endoporus of adapter sleeve is cylindrical, and the tapering of wheel hub and adapter sleeve is 1:7, the contact rate of both conical surfaces >=80%.
The mounting and dismounting method of the utility model conic interference fit is as follows:
1. burr, the iron filings at conjunction (being adapter sleeve) inner and outer surface ridding machines, processed.
2. clean the conjunction inner and outer surface, reach the purpose without dirt, non-corroding.
3. on the conjunction inner and outer surface cleaned up, evenly be coated with the thin lubricant oil of last layer.
4. load onto flat key on columniform shaft extension, adapter sleeve is moved on on columniform axle with hand push, reach
Position to design code.
5. wheel hub is arranged on adapter sleeve, 4 hexagon socket cap head screws of screwing on, adopt torque spanner balancedly to tighten by the program of diagonal angle, intersection.
6. all hexagon socket cap head screws on the dismounting conjunction, by 2 the second tapped holes that wherein 2 are screwed in wheel hub, intersect, balancedly be screwed into, and adapter sleeve is progressively ejected in the wheel hub intermediate hole.
Claims (5)
1. a heavily loaded wheel hub conic interference fit structure, comprise wheel hub (1) and adapter sleeve (2), described wheel hub intermediate hole internal conical surface coordinates and is connected by hexagon socket cap head screw (3) with the adapter sleeve outer conical surface, make both junction planes compress the formation Desing of Interference Joint, it is characterized in that, one side of the conus portion of described adapter sleeve has the wide opening of 2-5mm (21), the length of opening is consistent with the length of adapter sleeve, keyway (22) is set on the inwall of the opposite side of conus portion, the bigger diameter end of the conus portion of adapter sleeve forms flange part (23), have 2-8 on the end face of this flange part (23) for the first tapped hole (4) that connects wheel hub, the number of the first tapped hole (4) is consistent with the number of hexagon socket cap head screw (3),
The path end face of described wheel hub conus portion is provided with 2-8 the counterbore (5) for hexagon socket cap head screw is installed, the number of counterbore is consistent with the number of the first tapped hole, the head that vertically runs through the hexagon socket cap head screw of wheel hub conus portion is connected with the first tapped hole (4) on the flange part end face, the afterbody of hexagon socket cap head screw is placed in counterbore (5), the bigger diameter end of wheel hub conus portion is provided with 2-4 the second tapped hole (6) for the dismounting adapter sleeve, during dismounting, the second tapped hole and hexagon socket cap head screw are used in conjunction with, adapter sleeve is progressively ejected in the wheel hub intermediate hole, the bigger diameter end of wheel hub conus portion is provided with the step (7) of a circle for the adapter sleeve flange part is installed.
2. heavily loaded wheel hub conic interference fit structure according to claim 1, is characterized in that, a circle grinding wheel groove (24) is set between the conus portion of described adapter sleeve and flange part.
3. heavily loaded wheel hub conic interference fit structure according to claim 1, is characterized in that, a described 2-8 counterbore (5) and 2-8 the first tapped hole (4) all is circumferentially uniform.
4. heavily loaded wheel hub conic interference fit structure according to claim 1, is characterized in that, described 2-4 the second tapped hole (6) is circumferentially uniform.
5. heavily loaded wheel hub conic interference fit structure according to claim 1, is characterized in that, the endoporus of described adapter sleeve is cylindrical, and the tapering of wheel hub and adapter sleeve is 1:7, the contact rate of both conical surfaces >=80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320442805.2U CN203384242U (en) | 2013-07-22 | 2013-07-22 | Conical interference fit structure for heavy-duty hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320442805.2U CN203384242U (en) | 2013-07-22 | 2013-07-22 | Conical interference fit structure for heavy-duty hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384242U true CN203384242U (en) | 2014-01-08 |
Family
ID=49872739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320442805.2U Expired - Fee Related CN203384242U (en) | 2013-07-22 | 2013-07-22 | Conical interference fit structure for heavy-duty hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352924A (en) * | 2013-07-22 | 2013-10-16 | 浙江上风实业股份有限公司 | Heavy-load hub cone interference fitting structure and installing and dismantling method thereof |
| CN106931052A (en) * | 2015-12-30 | 2017-07-07 | 舍弗勒技术股份两合公司 | Clutch release main cylinder assembly |
-
2013
- 2013-07-22 CN CN201320442805.2U patent/CN203384242U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352924A (en) * | 2013-07-22 | 2013-10-16 | 浙江上风实业股份有限公司 | Heavy-load hub cone interference fitting structure and installing and dismantling method thereof |
| CN106931052A (en) * | 2015-12-30 | 2017-07-07 | 舍弗勒技术股份两合公司 | Clutch release main cylinder assembly |
| CN106931052B (en) * | 2015-12-30 | 2020-09-01 | 舍弗勒技术股份两合公司 | Clutch release main cylinder assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20160722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |