CN214200617U - Short rotor auxiliary starting device - Google Patents
Short rotor auxiliary starting device Download PDFInfo
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- CN214200617U CN214200617U CN202120437496.4U CN202120437496U CN214200617U CN 214200617 U CN214200617 U CN 214200617U CN 202120437496 U CN202120437496 U CN 202120437496U CN 214200617 U CN214200617 U CN 214200617U
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- starting device
- short rotor
- auxiliary
- hole
- supporting rod
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Abstract
The utility model discloses a short rotor auxiliary starting device, include: the middle of the centering chassis is provided with a through hole for positioning the auxiliary supporting rod, the middle of the top of the centering chassis is provided with a connecting boss, and the middle of the connecting boss is provided with a threaded hole which is coaxial and communicated with the through hole in the same diameter; the auxiliary supporting rod penetrates through the through hole and the threaded hole of the centering chassis, and an external thread matched with the threaded hole is formed outside the upper end part of the auxiliary supporting rod; and the supporting head is arranged at the bottom end of the auxiliary supporting rod. The utility model discloses an use and accomplished the supplementary start-up of the short rotor of supporting restraint under single pin type, shorten experimental preparation time, reduce the operation degree of difficulty, improve the experimental security to this type of rotor, and can adapt to the short rotor system of supporting restraint under the single pin type of multiple size.
Description
Technical Field
The utility model belongs to rotor dynamics test device field, concretely relates to short rotor auxiliary starting device.
Background
A short rotor constrained by only a single needle type lower support is widely used as a test object in rotor dynamics tests for component strength test and reliability verification. This type of rotor would topple over at rest and not remain upright; when the spinning reaches a certain rotating speed, the spinning device can automatically keep vertical and stable rotation due to the rotation effect. In the process of starting up the speed from a static state, an auxiliary device is needed to right the rotor until the rotor reaches a spinning stable state. Usually, the short rotor is mainly started by manual centering or by rubbing the outer edge of the test rotor against a test bed. The manual operation mainly depends on the experience of an operator, the difficulty is high, the test piece is easy to pop up, and certain danger is brought to the operator. The impact force of the rotor outer edge rubbing method on the rotor is large, and the structure of the rotor is easy to damage. At present, no device can complete auxiliary starting of a short rotor supported and restrained under a single needle, so that an auxiliary starting device which is suitable for the rotor and has high safety and strong operability is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a overcome the shortcoming that exists among the prior art and propose, its purpose provides a short rotor auxiliary starting device.
The utility model discloses a realize through following technical scheme:
a short rotor assisted starting device comprising:
a through hole for positioning the auxiliary supporting rod is formed in the middle of the centering chassis, a connecting boss is formed in the middle of the top of the centering chassis, a threaded hole which is coaxial and communicated with the through hole in the same diameter is formed in the middle of the connecting boss,
the auxiliary supporting rod penetrates through the through hole and the threaded hole of the centering chassis, and an external thread matched with the threaded hole is formed outside the upper end part of the auxiliary supporting rod;
and the supporting head is arranged at the bottom end of the auxiliary supporting rod.
In the technical scheme, the auxiliary support rod further comprises a positioning nut which is arranged above the connecting boss and is in threaded connection with the auxiliary support rod.
In the technical scheme, the centering device further comprises at least one operating handle arranged on the centering chassis.
In the above technical solution, the auxiliary support rod is an aluminum cylindrical long rod, and a screw hole for connecting the support head is formed on the bottom surface of the auxiliary support rod.
In the technical scheme, the outer wall of the upper part of the supporting head forms an external thread connected with a screw hole at the bottom of the auxiliary supporting rod, and the outer wall of the lower part of the supporting head is a smooth surface.
In the above technical solution, the lower part of the support head is in contact with the hole on the short rotor test piece.
In the technical scheme, the centering base plate is in a cylindrical flange shape, and a positioning boss matched with the inner edge of the outer sleeve of the test bed is formed on the bottom surface of the centering base plate.
In the technical scheme, a plurality of mounting holes which are uniformly distributed along the circumference and used for assembling the operating handle are formed in the centering chassis.
In the technical scheme, a plurality of connecting holes which are uniformly distributed along the circumference and used for being fixed with the outer sleeve of the test bed are formed in the centering chassis.
In the above technical scheme, the connection holes are distributed on the outer side of the mounting hole.
The utility model has the advantages that:
the utility model provides a short rotor system's of supporting restraint supplementary starting drive under single pin type suitable for multiple size has accomplished the supplementary start-up of the short rotor of supporting restraint under single pin type through the device's use, shortens experimental preparation time, reduces the operation degree of difficulty, improves the experimental security to this type rotor.
Drawings
Fig. 1 is a schematic structural diagram of the short rotor auxiliary starting device of the present invention;
fig. 2 is a schematic view of the working principle of the short rotor auxiliary starting device of the present invention.
Wherein:
1 centering chassis
11 positioning boss 12 connecting boss
13 mounting hole and 14 connecting hole
2 auxiliary support rod
3 support head
4 positioning nut
5 operating the handle.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the short rotor auxiliary starting device of the present invention is further described below by referring to the drawings of the specification and the specific embodiments.
As shown in fig. 1, a short rotor auxiliary starting device includes:
a through hole for positioning the auxiliary supporting rod 2 is formed in the middle of the centering chassis 1, a connecting boss 12 is formed in the middle of the top of the centering chassis 1, and a threaded hole which is coaxial with the through hole in the same diameter and communicated with the through hole is formed in the middle of the connecting boss 12;
the auxiliary supporting rod 2 penetrates through a through hole and a threaded hole of the centering chassis 1;
a support head 3 provided at the bottom end of the auxiliary support rod 2;
the positioning nut 4 is a cylindrical nut, a screw hole is formed in the middle of the positioning nut, the positioning nut is arranged above the connecting boss 12 and is in threaded connection with the auxiliary supporting rod 2, and the axial positioning of the auxiliary supporting rod can be realized by rotating the nut to lock the positioning nut;
and an operating handle 5 arranged on the centering chassis 1.
The centering chassis 1 is in a cylindrical flange shape, and a positioning boss 11 used for being matched with the inner edge of the outer sleeve of the test bed is formed on the bottom surface of the centering chassis; a plurality of mounting holes 13 which are uniformly distributed along the circumference and used for assembling the operating handle 5 are formed on the centering chassis 1; a plurality of connecting holes 14 which are uniformly distributed along the circumference and used for connecting with an outer sleeve of the test bed are formed on the centering chassis 1; the connecting holes 14 are distributed outside the mounting holes 13.
The through hole of the centering chassis 1 and the threaded hole of the connecting boss 12 realize the installation and positioning of the auxiliary supporting rod 2.
The auxiliary support rod 2 is a long cylindrical aluminum rod, and screw holes for connecting support heads 3 of different sizes are formed in the bottom surface of the auxiliary support rod.
The supporting head 3 is a polytetrafluoroethylene plastic cylindrical short rod, an external thread connected with a screw hole at the bottom of the auxiliary supporting rod 2 is formed on the outer wall of the upper part, and the outer wall of the lower part is a smooth surface, so that the friction force is reduced to the maximum extent.
The lower part of the supporting head 3 is contacted with a hole on a short rotor test piece, and the effect of assisting in starting the rotor is achieved.
The utility model discloses a theory of operation:
as shown in FIG. 2, the utility model discloses auxiliary starting device's theory of operation utilizes the bearing head to restrict the angle of inclination of experimental rotor with the power of rubbing of short rotor lower extreme cover centre bore, prevents that rotor lower extreme cover and motor surface from taking place the friction among the experimentation, realizes auxiliary starting.
The auxiliary starting requirements of rotors with different sizes can be met by adjusting the upper and lower positions of the auxiliary supporting rod and replacing different supporting heads.
The utility model discloses a working process:
firstly, mounting a centering chassis on a test sleeve, selecting a supporting head with a proper size, rotating and inserting the supporting head, adjusting the supporting head to a proper height to enable the supporting head to be inserted into a center hole of a lower end cover of a test rotor, and then locking a positioning nut; then, starting a motor rotor to rotate, gradually increasing the friction of the supporting head along with the increase of the rotating speed, and then reducing the amplitude of the rotor to separate from the supporting head; and after the test is finished, the positioning nut is disassembled, the auxiliary supporting rod is screwed out, and finally the centering chassis is disassembled to finish the auxiliary starting operation.
The utility model provides a short rotor system's of supporting restraint supplementary starting drive under single pin type suitable for multiple size has accomplished the supplementary start-up of the short rotor of supporting restraint under single pin type through the device's use, shortens experimental preparation time, reduces the operation degree of difficulty, improves the experimental security to this type rotor.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (10)
1. A short rotor auxiliary starting device is characterized in that: the method comprises the following steps:
a through hole for positioning the auxiliary supporting rod (2) is formed in the middle of the centering chassis (1), a connecting boss (12) is formed in the middle of the top of the centering chassis, a threaded hole which is coaxial and communicated with the through hole in the same diameter is formed in the middle of the connecting boss (12),
the auxiliary supporting rod (2) penetrates through the through hole and the threaded hole of the centering chassis (1), and an external thread matched with the threaded hole is formed outside the upper end part of the auxiliary supporting rod;
and a support head (3) which is provided at the bottom end of the auxiliary support rod (2).
2. The short rotor assisted starting device of claim 1, characterized in that: the auxiliary support rod is characterized by further comprising a positioning nut (4) which is arranged above the connecting boss (12) and is in threaded connection with the auxiliary support rod (2).
3. The short rotor assisted starting device of claim 1, characterized in that: the centering chassis (1) is characterized by further comprising at least one operating handle (5) arranged on the centering chassis (1).
4. The short rotor assisted starting device of claim 1, characterized in that: the auxiliary supporting rod (2) is a cylindrical long rod, and a screw hole for connecting the supporting head (3) is formed in the bottom surface of the auxiliary supporting rod.
5. The short rotor assisted starting device of claim 1, characterized in that: the outer wall of the upper part of the supporting head (3) forms an external thread connected with a screw hole at the bottom of the auxiliary supporting rod (2), and the outer wall of the lower part of the supporting head is a smooth surface.
6. The short rotor assisted starting device of claim 1, characterized in that: the lower part of the supporting head (3) is contacted with a hole on a short rotor test piece.
7. The short rotor assisted starting device of claim 1, characterized in that: the centering chassis (1) is in a cylindrical flange shape, and a positioning boss (11) matched with the inner edge of the outer sleeve of the test bed is formed on the bottom surface of the centering chassis.
8. The short rotor assisted starting device of claim 1, characterized in that: the centering chassis (1) is provided with a plurality of mounting holes (13) which are uniformly distributed along the circumference and used for assembling the operating handle (5).
9. The short rotor assisted starting device of claim 1, characterized in that: the centering chassis (1) is provided with a plurality of connecting holes (14) which are uniformly distributed along the circumference and used for being fixed with the outer sleeve of the test bed.
10. The short rotor assisted starting device of claim 9, wherein: the connecting holes (14) are distributed on the outer side of the mounting holes (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120437496.4U CN214200617U (en) | 2021-03-01 | 2021-03-01 | Short rotor auxiliary starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120437496.4U CN214200617U (en) | 2021-03-01 | 2021-03-01 | Short rotor auxiliary starting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214200617U true CN214200617U (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120437496.4U Active CN214200617U (en) | 2021-03-01 | 2021-03-01 | Short rotor auxiliary starting device |
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| Country | Link |
|---|---|
| CN (1) | CN214200617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729808A (en) * | 2021-03-01 | 2021-04-30 | 核工业理化工程研究院 | Short rotor auxiliary starting device |
-
2021
- 2021-03-01 CN CN202120437496.4U patent/CN214200617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729808A (en) * | 2021-03-01 | 2021-04-30 | 核工业理化工程研究院 | Short rotor auxiliary starting device |
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