CN2806772Y - Connecting structure of high speed rotating mechanical impeller and mainshaft - Google Patents
Connecting structure of high speed rotating mechanical impeller and mainshaft Download PDFInfo
- Publication number
- CN2806772Y CN2806772Y CN 200520079027 CN200520079027U CN2806772Y CN 2806772 Y CN2806772 Y CN 2806772Y CN 200520079027 CN200520079027 CN 200520079027 CN 200520079027 U CN200520079027 U CN 200520079027U CN 2806772 Y CN2806772 Y CN 2806772Y
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- main shaft
- impeller
- cylinder
- pin
- hole
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Abstract
The utility model discloses a connecting structure of a high-speed rotary mechanical impeller and a main shaft. The utility model comprises a main shaft and an impeller which is connected with the main shaft. One end that the impeller and the main shaft are connected is protruded with a first cylinder of which the diameter equals the diameter of the spindle nose of the main shaft. The end surface of the first cylinder is protruded with a second cylinder. One end that the main shaft and the impeller are connected is provided with a bore which corresponds to the second cylinder, and the bore is used for the insertion of the second cylinder to make the bore and the second cylinder be in transition fit when the impeller and the main shaft are connected. A thread bore is inwards arranged at the end surface that the main shaft and the impeller are connected, and the thread bore is used for screwing bolts to fix and connect the impeller and the main shaft. The utility model adopts the connecting structure of the impeller and the main shaft and has the advantage of simple structure, and frequent disassembly and assembly for the impeller and the main shaft can be realized.
Description
Technical field
The utility model relates to a kind of linkage structure of high-speed rotating machine, particularly the linkage structure of a kind of impeller of high-speed rotating machine and main shaft.
Background technique
For the high-speed rotating machine impeller that is installed in the high-speed rotary main shaft axle head, the Placement of impeller and main shaft is generally the impeller endoporus and is installed on the axle head spindle nose of main shaft, impeller endoporus and main shaft spindle nose are of a size of interference fit, the impeller shrink-on is on the main shaft spindle nose, with gland nut impeller is pressed on main-axis end again, this Placement is come transmitting torque by the interference of impeller endoporus and spindle nose, be applicable to that impeller and main shaft are not dismantled or seldom dismounting and stator elements be in the turbomachinery equipment of horizonally split formula, the occasion that is not suitable for impeller and the frequent dismounting of main shaft needs is the turbine equipment of vertical split type with stator elements.Also have now in the industrial production to be suitable for impeller and can to realize the frequently structure of dismounting,, but complex structure, be applicable to the less occasion of physical dimension of impeller and main shaft as triangle axle construction with main shaft.
Summary of the invention
The purpose of this utility model has been to provide the linkage structure of a kind of high-speed rotating machine impeller and main shaft, has solved the problem that is connected inconvenient frequent dismounting of impeller and main shaft in the existing high-speed rotating machine, and simple in structure.
The technological scheme that the utility model adopted is, the linkage structure of a kind of high-speed rotating machine impeller and main shaft, comprise main shaft and the impeller that is connected with main shaft, the end that impeller is connected with main shaft is extruded with first cylinder of an external diameter and main shaft spindle nose equal diameters, the end face of first cylinder is extruded with second cylinder again, the diameter of first cylinder is greater than the diameter of second cylinder, impeller has a center hole that connects impeller and first cylinder, second cylinder vertically, and the screw-in that is used for bolt is with fixedly connected impeller and main shaft;
The end that main shaft is connected with impeller has and the corresponding hole of second cylinder, the insertion of second cylinder and make the hole and the second cylinder transition fit when being used for impeller and being connected with main shaft, the end face that main shaft is connected with impeller inwardly also has tapped hole, the screw-in that is used for bolt is with fixedly connected impeller and main shaft, and the joint of first cylinder and main shaft radially is provided with driving pin along circumference.
Characteristics of the present utility model also are, have two pin half holes on two end faces that great circle anchor ring that first cylinder and second cylinder form and main shaft join, the upper end of driving pin embeds in two pin half holes and with the internal surface in two pin half holes to be close to, and the lower end of driving pin embeds in the entity of first cylinder and the formation of second cylinder.
Driving pin is an odd number, evenly arranges.
Hoop has clip on the excircle of impeller and main shaft joint, and clip and main shaft interference fit are with first cylinder and driving pin Spielpassung.
This impeller that the utility model adopts and the linkage structure of main shaft, simple in structure, can realize the frequent dismounting of impeller and main shaft, and transmitting torque accurately, reliable, be suitable for middle-sized main shaft and impeller to be connected with stator elements be in the turbomachinery equipment of vertical subdivision form or horizonally split form.
Description of drawings
Fig. 1 is impeller of the present utility model and main shaft spindle nose linkage structure schematic representation;
Fig. 2 is the structural representation of the end that is connected with main shaft of impeller, and wherein a is a right elevation, and b is a plan view;
Fig. 3 is the structural representation of the end that is connected with impeller of main shaft, and wherein a is a plan view, and b is a left view;
Fig. 4 is a clip assembling schematic representation.
Among the figure, 1 impeller, 2 main shafts, 3 bolts, 4 driving pins, 5 nuts, 6 clips, 7 first cylinders, 8 second cylinders, 9 center holes, 10 holes, 11 tapped holes, 12 pins, half hole.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Referring to Fig. 1, Fig. 2, the linkage structure of high-speed rotating machine impeller of the present utility model and main shaft, comprise main shaft 2 and the impeller 1 that is connected with main shaft 2, the end that impeller 1 is connected with main shaft 2 is extruded with first cylinder 7 of an external diameter and main shaft 2 spindle nose equal diameters, the end face of first cylinder 7 is extruded with second cylinder 8 again, the diameter of first cylinder 7 is greater than the diameter of second cylinder 8, impeller 1 has one vertically and connects the impeller 1 and first cylinder 7, the center hole 9 of second cylinder 8, the screw-in that is used for bolt 3 is with fixedly connected impeller 1 and main shaft 2, the first cylinders 7, second cylinder 8 and center hole 9 are coaxial; The end that main shaft 2 is connected with impeller 1 has and second cylinder, 8 corresponding holes 10, hole 10 is a center line with the axis of main shaft 2, the insertion of second cylinder 8 and make it and second cylinder 8 is transition fit when being used for impeller 1 and being connected with main shaft 2, the end face that main shaft 2 is connected with impeller 1 inwardly also has tapped hole 11, bolt 3 inserts center hole 9, from an end of impeller 1 pass first cylinder 7, second cylinder 8 screws in tapped hole 11 again, impeller 1 is connected with main shaft 2 axial restraints.
Tool withdrawal groove is arranged at the bottom in hole 10, and the effective depth in hole 10 is slightly larger than the axial height of second cylinder 8, installation that the choosing of the axial height of second cylinder 8 will be convenient to impeller 1 and accurate location radially; On the vertical plane perpendicular to impeller center hole 9 axis at the great circle anchor ring place that first cylinder 7 and second cylinder 8 form, 5 pin-and-holes of radial equipartition along the circumferential direction, pin-and-hole is to manufacture after the left axial end of great circle anchor ring and main shaft 2 is fitted, the upper end part of pin-and-hole is made of two pin half holes 12, on the left axle head end face and great circle anchor ring of main shaft 2, the lower end of pin-and-hole is sunk in the entity of first cylinder 7 and 8 formation of second cylinder respectively; Driving pin 4 manufactures with corresponding pin-and-hole respectively, and after driving pin 4 manufactured, the end face that main shaft 2 left axle heads and great circle anchor ring are joined ground off 0.15-0.25mm.
After the assembling, driving pin 4 embeds in the pin-and-hole, with pin-and-hole lower end transition fit, is close to two internal surfaces of selling half holes 12 of pin-and-hole upper end, and the left axle head and the gap between the great circle anchor ring of main shaft 2 are 0.15-0.25.
Among Fig. 3, in the bottom of main shaft 2 left stub bore 10 tapped hole 11 that has internal thread is arranged, the center of tapped hole 11 is by the axis of main shaft 2; Axially connecting bolt 3 passes impeller center hole 9, and the right-hand member outside thread links to each other with main shaft left side head screwed hole 11 screw threads; Axle head gland nut 5 is threaded with the left end of axial connecting bolt 3, is pressed on the left side of impeller 1, and impeller 1 is realized axially being connected with main shaft 2.
Referring to Fig. 4, clip 6 hoop on impeller 1 and main shaft 2 joint excircles, with the left axle head spindle nose cylindrical of main shaft 2 be interference fit, with the cylindrical and the driving pin 4 of right-hand member first cylinder 7 of impeller 1 be movable Spielpassung; The head that back driving pin 4 is installed is not higher than the cylindrical of first cylinder 7, to be easy for installation and removal; The axial length of clip 6 is as the criterion to push down driving pin 4 heads and to be convenient to install sealing.
During assembling, earlier driving pin 4 is fitted in the corresponding pin-and-hole of impeller 1 right-hand member, clip 6 hot chargings on main shaft 2 left axle head cylindricals, axially are connected impeller 1 with the main shaft 2 that has clip 6 with axial connecting bolt 3 again.The effect of clip 6 is to prevent that driving pin 4 comes off in the high speed rotating process, can be convenient to again in this position installation sealing.
The quantity of driving pin 4 and pin-and-hole can be 3,5,7 etc. according to actual conditions, and quantity is the distribution that odd number is of value to power, makes the better effects if of transmitting torque.The driving pin 4 of present embodiment adopts 5 straight pins that diameter is 5mm, is about 100mm at main shaft 2 with impeller 1 attachment portion spindle nose diameter, and transmitted power is 500KW, and rotating speed is 10000 rev/mins a turbocompressor.
To being connected the high-speed rotating impeller 1 of main shaft 2 axle heads, adopt above-mentioned linkage structure, can be accurately, transmitting torque reliably, can realize impeller 1 and main shaft 2 frequent dismounting, simple in structure, can be used for stator elements is the turbocompressor of the medium size structure of horizonally split formula or vertical split type.
Claims (4)
1. the linkage structure of high-speed rotating machine impeller and main shaft, comprise main shaft (2) and the impeller (1) that is connected with main shaft (2), it is characterized in that, the end that described impeller (1) is connected with main shaft (2) is extruded with first cylinder (7) of an external diameter and main shaft (2) spindle nose equal diameters, the end face of first cylinder (7) is extruded with second cylinder (8) again, the diameter of first cylinder (7) is greater than the diameter of second cylinder (8), impeller (1) has one vertically and connects impeller (1) and first cylinder (7), the center hole (9) of second cylinder (8), the screw-in that is used for bolt (3) is with fixedly connected impeller (1) and main shaft (2);
The end that described main shaft (2) is connected with impeller (1) has and the corresponding hole of second cylinder (8) (10), be used for the insertion of impeller (1) and main shaft (2) second cylinder (8) when being connected and make hole (10) and second cylinder (8) transition fit, the end face that main shaft (2) is connected with impeller (1) inwardly also has tapped hole (11), and the screw-in that is used for bolt (3) is with fixedly connected impeller (1) and main shaft (2); Described first cylinder (7) radially is provided with driving pin (4) with the joint of main shaft (2) along circumference.
2. linkage structure according to claim 1, it is characterized in that, have two pin half holes (12) on two end faces that great circle anchor ring that described first cylinder (7) and second cylinder (8) form and main shaft (2) join, the upper end of described driving pin (4) embeds in two pin half holes (12) and with the internal surface in two pin half holes (12) to be close to, and the lower end of driving pin (4) embeds in the entity of first cylinder (7) and second cylinder (8) formation.
3. linkage structure according to claim 1 and 2 is characterized in that, described driving pin (4) is an odd number, evenly arranges.
4. linkage structure according to claim 1 is characterized in that, hoop has clip (6) on the excircle of described impeller (1) and main shaft (2) joint, and clip (6) and main shaft (2) interference fit are with first cylinder (7) and driving pin (4) Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079027 CN2806772Y (en) | 2005-07-07 | 2005-07-07 | Connecting structure of high speed rotating mechanical impeller and mainshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079027 CN2806772Y (en) | 2005-07-07 | 2005-07-07 | Connecting structure of high speed rotating mechanical impeller and mainshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2806772Y true CN2806772Y (en) | 2006-08-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520079027 Expired - Fee Related CN2806772Y (en) | 2005-07-07 | 2005-07-07 | Connecting structure of high speed rotating mechanical impeller and mainshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2806772Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225085A (en) * | 2016-09-12 | 2016-12-14 | 珠海格力电器股份有限公司 | Blade structure and there is its air-conditioner |
| CN109026827A (en) * | 2018-08-07 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of connection structure and kitchen ventilator of impeller and driving device |
| CN111390660A (en) * | 2020-05-08 | 2020-07-10 | 太原理工大学 | Ultrasonic isostatic pressing viscoelastic abrasive polishing device and polishing method for integral impeller parts |
-
2005
- 2005-07-07 CN CN 200520079027 patent/CN2806772Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225085A (en) * | 2016-09-12 | 2016-12-14 | 珠海格力电器股份有限公司 | Blade structure and there is its air-conditioner |
| CN109026827A (en) * | 2018-08-07 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of connection structure and kitchen ventilator of impeller and driving device |
| CN111390660A (en) * | 2020-05-08 | 2020-07-10 | 太原理工大学 | Ultrasonic isostatic pressing viscoelastic abrasive polishing device and polishing method for integral impeller parts |
| CN111390660B (en) * | 2020-05-08 | 2021-10-22 | 太原理工大学 | Ultrasonic isostatic pressing viscoelastic abrasive polishing device and polishing method for integral impeller parts |
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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: 20060816 Termination date: 20140707 |
|
| EXPY | Termination of patent right or utility model |