CN201318990Y - Over-speed core shaft of impeller of booster - Google Patents
Over-speed core shaft of impeller of booster Download PDFInfo
- Publication number
- CN201318990Y CN201318990Y CNU200820143559XU CN200820143559U CN201318990Y CN 201318990 Y CN201318990 Y CN 201318990Y CN U200820143559X U CNU200820143559X U CN U200820143559XU CN 200820143559 U CN200820143559 U CN 200820143559U CN 201318990 Y CN201318990 Y CN 201318990Y
- Authority
- CN
- China
- Prior art keywords
- mandrel
- core shaft
- taper sleeve
- impeller
- over
- 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
Links
Images
Abstract
An over-speed core shaft of an impeller of a booster is characterized in that a major diameter circular truncated cone is arranged at the upper end of the core shaft, an upper taper sleeve is sleeved on the inner end surface of the major diameter circular truncated cone, the upper taper sleeve is fixed through an internal hexagonal bolt and the major diameter circular truncated cone of the core shaft, a lower taper sleeve is arranged under the upper taper sleeve, a disk spring is mounted in a central counter bore on the outer end surface of the lower taper sleeve, a compacting sleeve is arranged on the lower end surface of the disk spring, a locking nut is arranged under the compacting sleeve, a locking screw is arranged on the side end surface of the locking nut, the inner end of the locking screw is close to the locking block on the excircle surface of the core shaft, and the impeller is mounted on the core shaft between the upper taper sleeve and the lower taper sleeve. The over-speed core shaft of the impeller of the booster has the advantages of simple design structure and convenient use, and can directly carry out over-speed motion after carrying out dynamic balance. When the over-speed core shaft of the impeller of the booster is in an over-speed state, the tensile force of a positioning datum hole of a work piece far away from the axis direction caused by the centrifugal force outwardly extends in the radial direction, the taper sleeve moves in the axial direction due to the pressure action of the disk spring, and the conical surface of the taper sleeve is always closely connected with the conical surface of the positioning datum hole of the work piece, therefore, the work piece and the core shaft always rotate around the same rotation shaft line, the dynamic balance can not be damaged, and the over-speed experiment is stably performed.
Description
Technical field
The utility model relates to a kind of supercharger impeller hypervelocity mandrel.Be applicable to various endoporus location rotary work piece overspeed test, belong to that workpiece workpiece material when relative rotation axi line high speed rotating radially extends in the machining, be that the stretcher strain of workpiece under is in working order discharged in advance, guarantee workpiece when work the part in distortion handle frock.
Background technology
Along with the Ministry of Railways adjusts locomotive running speed, locomotive operation safety highlights, for this reliability and security Ministry of Railways to locomotive fittings has proposed requirements at the higher level.Supercharger is the vitals of locomotive, and it directly influences locomotive running speed and traffic safety.Impeller is the very important parts of supercharger, and the quality of this part quality is related to supercharger traveling comfort and security.If there is not corresponding rational frock auxiliary, low and the exigent impeller of geometric accuracy for material hardness, the centrifugal force that the Work piece high-speed rotation is produced in overspeed test, workpiece material is radially outwards stretched around axis, make the expansion of hypervelocity pilot hole, the location instability causes transient equilibrium unbalance.Transient equilibrium is unbalance to cause shock momentum to exceed the operate as normal limit that equipment can bear, and the automatic protective system of equipment starts stagnation work, and overspeed test can not normally be carried out, and predeformation can not discharge, and quality can't guarantee.
General wheel speed is lower, and the pilot hole radial dilatation is little, as long as match the fit-up gap of exceed the speed limit mandrel and pilot hole, applies rational clamping force, has the tradesman of certain operant level can finish after carrying out transient equilibrium.
But the expanded in diameter of the high rotating speed pilot hole that changes for supercharger impeller 44,000 is very big.The small residual volume of transient equilibrium all can cause the changing of the relative positions in opposite directions of pilot hole and mandrel, makes mandrel axle center and impeller axle center decentraction, and the eccentric force that decentraction produced has been destroyed transient equilibrium.Overspeed test can not normally be carried out, and predeformation can not discharge.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of supercharger impeller hypervelocity mandrel is provided.Be applicable to various endoporus location rotary work piece overspeed test, belong to that workpiece workpiece material when relative rotation axi line high speed rotating radially extends in the machining, be that the stretcher strain of workpiece under is in working order discharged in advance, guarantee workpiece when work the part in distortion handle frock.
The technical solution of the utility model is:
A kind of supercharger impeller hypervelocity mandrel, it is characterized in that: a mandrel is arranged, there is a big footpath round platform upper end of mandrel, be with tapered sleeve on the inner face near the big footpath of mandrel round platform on the mandrel, last tapered sleeve is fixed by interior six square bolts and the big footpath of mandrel round platform, following tapered sleeve is arranged below the tapered sleeve on mandrel, in the center counterbore of the following tapered sleeve outer face on mandrel disk spring is housed, on the disk spring lower surface on the mandrel, clamping sleeve is arranged, be locknut under the clamping sleeve, on the side end face of locknut lock-screw is arranged, lock-screw is inner to be latch segment near the mandrel outer round surface; On mandrel between last tapered sleeve and the following tapered sleeve, impeller is housed.
Characteristics of the present utility model:
This project organization is simply easy to use, can do directly to exceed the speed limit after the transient equilibrium.When hypervelocity, workpiece positioning reference hole was because centrifugal force produced to radially expanding outwardly away from the axis direction pulling force, because tapered sleeve is moved by the effect of disk spring pressure vertically, the tapered sleeve conical surface and the workpiece positioning reference hole conical surface remain closely connected, make workpiece and mandrel always around same rotation rotation, guaranteed that transient equilibrium not by broken ring, steadily carries out overspeed test.Thereby guaranteed the desired result that will reach.
Description of drawings
Fig. 1 is the structural representation of supercharger impeller hypervelocity mandrel
Fig. 2 is the structural representation of supercharger impeller hypervelocity mandrel
Among the figure: 1, interior six square bolts, 2, mandrel, 3, go up tapered sleeve, 4, tapered sleeve down, 5, disk spring, 6, clamping sleeve, 7, locknut, 8, latch segment, 9, lock-screw, 10 transient equilibrium strong point A, 11, transient equilibrium strong point B, 12 impellers
Embodiment
A kind of as shown in Figure 1 supercharger impeller hypervelocity mandrel, a mandrel 2 is arranged, there is a big footpath round platform upper end of mandrel, be with tapered sleeve 3 on the inner face near the big footpath of mandrel round platform on the mandrel, last tapered sleeve is fixed by interior six square bolts and the big footpath of mandrel round platform, following tapered sleeve 4 is arranged below the tapered sleeve on mandrel, in the center counterbore of the following tapered sleeve outer face on mandrel disk spring 5 is housed, on the disk spring lower surface on the mandrel, clamping sleeve 6 is arranged, it under the clamping sleeve locknut 7, lock-screw 8 is arranged on the side end face of locknut, and lock-screw is inner to be latch segment 9 near the mandrel outer round surface; On mandrel between last tapered sleeve and the following tapered sleeve, impeller is housed.
The utility model supercharger impeller hypervelocity mandrel, having adopted taper hole is the positioning reference hole, the built-in disk spring of end face tapered sleeve, clamping sleeve, is compressed by locknut, snap-in force is regulated by torque spanner.This structure can with pilot hole expanded in diameter produced and mandrel locating sleeve gap, by the axial force that disk spring produced that the two ends pilot hole conical surface and the tapered sleeve conical surface is closely connected all the time, guaranteed that impeller and mandrel rotate around same axis, transient equilibrium is not destroyed, overspeed test is normally carried out, and product quality is ensured.
1, mandrel is designed to right cylinder and end face (mandrel upper end as shown in Figure 1) axial locking with the lathe connected mode, this Design Orientation precision height (the mandrel axis is little with equipment rotation coincidence error), is convenient to be connected.Topmost right cylinder is the main positioning reference plane of mandrel and equipment, and large end face is the auxiliary positioning face under it.There are four uniform threaded holes to be used for being connected on it with equipment.Four uniform through holes are used for being connected the transmission moment of torsion with the epicone cover.The mandrel stage casing cooperates with last tapered sleeve and following tapered sleeve.Mandrel lower end screw thread cooperates with locknut, is used for regulating by clamping sleeve vertically the elastic force of disk spring.
2, go up tapered sleeve and following tapered sleeve: the epicone Analysis of Nested Design becomes ten screws of equal part of one-tenth on the great circle circumference, is used to adjust amount of unbalance, orientational cone-shaped surface and workpiece cone match, and endoporus cooperates with mandrel.Following tapered sleeve is designed to ten screws of equal part of one-tenth on the great circle circumference, is used to adjust amount of unbalance, orientational cone-shaped surface and workpiece cone match, and the position that diameter of bore is big is used for the disk spring assembling, and the position that diameter is little cooperates with mandrel.
3, type spring: the disk spring external diameter cooperates with following tapered sleeve endoporus.
4, clamping sleeve:, endoporus cooperates with mandrel.
5, locknut: cooperate with mandrel thread, can regulate the elastic force of disk spring vertically by clamping sleeve, make the location tapered sleeve conical surface closely connected with workpiece positioning reference taper hole all the time.
Instantiation: processing work as shown in Figure 2
1, use equipment uses B12U overspeed test machine.
2, test technology: impeller in the big end through hole insertion of the mandrel locking mold pin is assembled by diagram and mandrel, locked with torque spanner.
With the mandrel impeller that assembles by supporting shown in Figure 1, transient equilibrium strong point A10 transient equilibrium strong point B11 transient equilibrium do on the dynamic balancing machine balance-unbalance amount available on the screw adjustment amount of unbalance of adjusting screw increase and decrease Different Weight on tapered sleeve and the following tapered sleeve.
After carrying out transient equilibrium, be the main positioning reference plane of mandrel and equipment with right cylinder on the mandrel as shown in the figure, large end face is the auxiliary positioning face under it.There are four uniform threaded holes to be connected on it with equipment.Can test by operation of equipment standard and technological requirement.
This mandrel can satisfy the requirement of predeformation fully through overspeed test.Impeller after test is very good through quality on probation.
Claims (1)
1, a kind of supercharger impeller hypervelocity mandrel, it is characterized in that: a mandrel is arranged, there is a big footpath round platform upper end of mandrel, be with tapered sleeve on the inner face near the big footpath of mandrel round platform on the mandrel, last tapered sleeve is fixed by interior six square bolts and the big footpath of mandrel round platform, following tapered sleeve is arranged below the tapered sleeve on mandrel, in the center counterbore of the following tapered sleeve outer face on mandrel disk spring is housed, on the disk spring lower surface on the mandrel, clamping sleeve is arranged, be locknut under the clamping sleeve, on the side end face of locknut lock-screw is arranged, lock-screw is inner to be latch segment near the mandrel outer round surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820143559XU CN201318990Y (en) | 2008-11-27 | 2008-11-27 | Over-speed core shaft of impeller of booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820143559XU CN201318990Y (en) | 2008-11-27 | 2008-11-27 | Over-speed core shaft of impeller of booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318990Y true CN201318990Y (en) | 2009-09-30 |
Family
ID=41197754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820143559XU Expired - Fee Related CN201318990Y (en) | 2008-11-27 | 2008-11-27 | Over-speed core shaft of impeller of booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318990Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195792A (en) * | 2013-04-17 | 2013-07-10 | 济钢集团有限公司 | Special-shaped shaft of motor encoder |
| CN107643173A (en) * | 2017-10-30 | 2018-01-30 | 南京磁谷科技有限公司 | The mounting structure of impeller in a kind of overspeed test bench |
-
2008
- 2008-11-27 CN CNU200820143559XU patent/CN201318990Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195792A (en) * | 2013-04-17 | 2013-07-10 | 济钢集团有限公司 | Special-shaped shaft of motor encoder |
| CN103195792B (en) * | 2013-04-17 | 2016-06-29 | 济钢集团有限公司 | A kind of motor encoder special-shaped axis |
| CN107643173A (en) * | 2017-10-30 | 2018-01-30 | 南京磁谷科技有限公司 | The mounting structure of impeller in a kind of overspeed test bench |
| CN107643173B (en) * | 2017-10-30 | 2023-09-22 | 南京磁谷科技有限公司 | Impeller mounting structure in overspeed test bed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204504272U (en) | Centrifugal Automatic-clamping scroll chuck | |
| CN101628346B (en) | Method for slowing down outlet speed of carbon fiber composite material hand-made hole and buffer device thereof | |
| CN201318990Y (en) | Over-speed core shaft of impeller of booster | |
| CN210112979U (en) | Hybrid support self-balancing machine tool electric spindle structure | |
| CN107932314B (en) | Closed internal feedback static pressure rotary table device for vertical grinder | |
| CN201392270Y (en) | Over-speed mandrel of supercharger impeller | |
| CN211305637U (en) | Balanced elbow cutting clamp | |
| CN106239246B (en) | Adjustable damping and the electric current of rigidity become that handle of a knife is quivered in vibration damping suppression and vibration damping suppression is quivered method | |
| CN110408770B (en) | Rotary centrifugal residual stress regulating and controlling device for large ring piece | |
| CN204036258U (en) | A kind of point contact type fine adjustment emery wheel mechanism | |
| CN207923363U (en) | A kind of disc type work amount of unbalance on-line checking and correction experimental provision | |
| CN204449436U (en) | The horizontal milling attachment of a kind of housing cavity | |
| CN205937552U (en) | A high -speed balancing vibration isolation coupling device that is used for high rotational speed turbopump rotor | |
| CN214080888U (en) | High-precision air static pressure main shaft for grinding outer diameter of bidirectional step shaft product | |
| CN213239326U (en) | Shaft dynamic balance clamp | |
| CN204346641U (en) | A kind of Purely mechanical high speed chief axis on-line dynamic poise head | |
| CN110193611B (en) | Electric spindle structure of hybrid supporting self-balancing machine tool and control method thereof | |
| CN108279091A (en) | A kind of disc type work amount of unbalance on-line checking and correction experimental provision | |
| CN201335756Y (en) | Dynamic balance system for machining center high speed main shaft | |
| CN102554789A (en) | Static balancing regulation device for diamond grinding wheel | |
| CN208214387U (en) | A kind of multi-shaft device | |
| CN208409595U (en) | A kind of convex self-centering Quick clamping device of hemisphere part | |
| CN208019472U (en) | A kind of deep device such as lathe centering | |
| CN102476193A (en) | Separating type flexibly driven spindle system for high-precision processing machine tool | |
| CN112355813B (en) | Vertical grinding device for turbine rotor blade tips |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20121127 |