CN210068737U

CN210068737U - High-speed rotor end face weight reduction and wind resistance reduction device

Info

Publication number: CN210068737U
Application number: CN201920600157.6U
Authority: CN
Inventors: 左晃
Original assignee: Hunan Hanglitianchuan Intelligent Equipment Co Ltd
Current assignee: Hunan Hanglitianchuan Intelligent Equipment Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-02-14
Anticipated expiration: 2029-04-29

Abstract

The utility model provides a high-speed rotor end surface weight reduction and wind resistance reduction device, which comprises a rotor main body, an end cover pressing plate, a middle connecting rod, an end face bolt and a sealing ring; the end face of the rotor main body is provided with a through weight removing hole; the end cover pressing plate is arranged on the end face of the rotor main body weight removing hole and is flush with the end face of the rotor main body; the end surface pressing plate and the rotor main body are locked with the end surface bolt through the middle connecting rod. The utility model provides a high-speed rotor terminal surface subtracts heavy windage resistance device that falls had both played the effect that reduces windage loss and additional dynamic load, had guaranteed transmission efficiency and prolonged part life, satisfied the rotor again and got rid of the heavy hole and got rid of the heavy effect with reduction inertia.

Description

High-speed rotor end face weight reduction and wind resistance reduction device

Technical Field

The utility model relates to a rotatory spare part technical field, more specifically relates to a high-speed rotor terminal surface subtracts heavy windage device that falls.

Background

The mass of the rotating parts affects the critical rotating speed and dynamic load, so that a weight-removing hole structure is usually needed, but the weight-removing hole greatly increases the contact area of the rotor and air when rotating at high speed, thereby generating the following disadvantages: firstly, the wind resistance loss is increased, and the transmission efficiency is reduced; secondly, due to the discontinuous structure of the weight-removing holes, the rotor is unevenly heated in the circumferential direction, so that the precision of parts is influenced, additional dynamic load is generated, and the service lives of a gear and a bearing are influenced; thirdly, the discontinuous structure of the weight-reducing hole generates squeaking when rotating at high speed, and transmission noise and power loss are increased.

Disclosure of Invention

The to-be-solved technical problem of the utility model is not enough and the defect to prior art, provide a high-speed rotor terminal surface subtracts heavy windage device that falls, will go heavy hole from both ends face stifled, can reach the effect of going heavy, can not increase the windage again, guarantee high efficiency operation, the sufficient stability of operation simultaneously.

The utility model discloses a solve technical scheme that technical problem provided does:

a weight-reducing wind resistance-reducing device for the end face of a high-speed rotor comprises a rotor main body, an end cover pressing plate, a middle connecting rod and an end face bolt; the end face of the rotor main body is provided with a through weight removing hole; the end cover pressing plate is arranged on the end face of the rotor main body weight removing hole and is flush with the end face of the rotor main body; the end surface pressing plate and the rotor main body are locked with the end surface bolt through the middle connecting rod.

Furthermore, the end cover pressing plate and the end face of the rotor main body weight removal hole are positioned by adopting a spigot.

Further, the seam allowance positioning adopts a transition fit form.

Furthermore, the end face of the end face bolt is flush with the end face of the end cover pressing plate.

Further, the installation clearance between the end face bolt head and the end cover pressing plate is not more than 2 mm.

Further, the intermediate connecting rod is of a hollow thin-wall structure.

Further, the end face of the middle connecting rod is flush with the inner surface of the end cover pressing plate.

Furthermore, an O-shaped sealing ring is arranged between the rotor main body and the end cover pressing plate.

The high-speed rotor is characterized in that the weight-reducing and wind resistance-reducing device of the end face of the high-speed rotor is arranged in a weight-reducing hole of the high-speed rotor.

The beneficial effects of the utility model reside in that:

(1) the utility model provides a high-speed rotor terminal surface subtracts heavy windage resistance device and carries out the shutoff to rotor weight removal hole to take a series of arrangement structure that reduce the windage, like end cover clamp plate and rotor main part terminal surface parallel and level, terminal surface bolt's terminal surface and end cover clamp plate's terminal surface parallel and level, terminal surface bolt head and end cover clamp plate adopt little clearance fit etc. furthest's reduction windage area of contact, reduce windage loss and additional dynamic load, guaranteed transmission efficiency and extension part life.

(2) The utility model provides a high-speed rotor terminal surface subtracts heavy windage resistance device that falls strives to reduce the windage loss in, its self weight is less, for example the intermediate link adopts cavity thin wall structure, ensures that the heavy hole of going of high-speed rotor can reach the heavy effect of going of thinking just before the design, has effectively reduced the inertia of high-speed rotor.

Drawings

Fig. 1 is a schematic structural view of a high-speed rotor end-face weight-reducing wind resistance-reducing device provided by the present invention;

fig. 2 is a schematic structural view of the high-speed rotor end surface weight-reducing wind resistance-reducing device provided by the present invention.

Detailed Description

The invention is further described with reference to the following figures and examples. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1, a high-speed rotor end surface weight-reducing wind resistance-reducing device comprises a rotor main body 1, an end cover pressing plate 2, an intermediate connecting rod 4 and an end surface bolt 3; the end face of the rotor body 1 is provided with a through weight removing hole, the end cover pressing plate 2 is installed on the end face of the rotor body 1 weight removing hole to plug the weight removing holes on two sides, the end cover pressing plate 2 is flush with the end face of the rotor body 1, the end face bolt 3 is installed on the end face pressing plate in a penetrating mode, the thread section of the end cover pressing plate is connected with the middle connecting rod 4, and the end face bolts 3 at two ends support the middle connecting rod 4 together. The two ends of the middle connecting rod 4 are provided with internal threads which are connected with the end face bolt 3, and thread fastening glue is coated during installation to prevent the threads from loosening under high-speed centrifugal load and vibration load.

The end cover pressing plate 2 is connected with the end face of the rotor body 1 weight removing hole in a spigot positioning mode, a transition fit mode is adopted, the fit tolerance of the transition fit is small, the end cover pressing plate 2 is tightly embedded into the weight removing hole of the rotor body 1, the phenomenon that the whole dynamic balance of the rotor is damaged in a loose fit mode in the working process is avoided, and meanwhile, when the device is damaged or breaks down, the device can be replaced more simply and conveniently.

As shown in figure 1, the end cover pressing plate 2 is flush with the end face of the rotor body 1, the end face of the end face bolt 3 is flush with the end face of the end cover pressing plate 2, the head of the end face bolt 3 is in small clearance fit with the end cover pressing plate 2, the radial installation clearance between the end face bolt and the end cover pressing plate is not more than 2mm, the purpose of the arrangement is to level the outer surface of the rotor as far as possible, so that the contact area of wind resistance is reduced to the maximum extent, and the effect of reducing the wind resistance in movement.

The utility model is based on the rotor weight reduction, the wind resistance reduction design is carried out, so the installation of the device can not obviously influence the weight removal effect of the rotor weight removal hole, and the device is light, in the embodiment, the middle connecting rod 4 adopts a hollow thin-wall structure form, and the mass of the device is reduced as much as possible on the premise of ensuring the structural strength; the materials of the parts of the device are also selected for the purpose of reducing weight.

As shown in fig. 2, an O-ring seal 5 is further disposed between the rotor body 1 and the end cover pressing plate 2, and the O-ring seal is used for preventing lubricating oil and oil mist from penetrating into the cavity, so as to prevent oil accumulation in the cavity from affecting the dynamic balance of the whole rotor.

The above embodiments are merely further illustrative and explanatory of the present invention, and are not restrictive of the present invention. Any modification, equivalent replacement, and improvement made by those skilled in the art based on the above-mentioned inventive concept shall be included in the protection scope of the claims of the present invention.

Claims

1. A high-speed rotor end face weight-reducing wind resistance-reducing device comprises a rotor main body, and is characterized by further comprising an end cover pressing plate, a middle connecting rod and an end face bolt; the end face of the rotor main body is provided with a through weight removing hole; the end cover pressing plate is arranged on the end face of the rotor main body weight removing hole and is flush with the end face of the rotor main body; the end surface pressing plate and the rotor main body are locked with the end surface bolt through the middle connecting rod.

2. The high-speed rotor end face weight-reducing wind resistance reducing device according to claim 1, wherein the end cover pressing plate and the end face of the rotor body weight-reducing hole are positioned by adopting a spigot.

3. The high-speed rotor end surface weight-reducing wind resistance reducing device according to claim 2, wherein the spigot positioning is in a transition fit form.

4. The high-speed rotor end face weight-reducing wind resistance reducing device according to claim 1, wherein the end face of the end face bolt is flush with the end face of the end cover pressing plate.

5. The high-speed rotor end face weight-reducing wind resistance reducing device according to claim 4, wherein the mounting clearance between the end face bolt head and the end cover pressing plate is not more than 2 mm.

6. The high-speed rotor end face weight-reducing wind resistance reducing device according to claim 1, wherein the intermediate connecting rod is of a hollow thin-walled structure.

7. The high-speed rotor end face weight-reduction wind resistance reducing device according to claim 6, wherein the end face of the intermediate connecting rod is flush with the inner surface of the end cover pressing plate.

8. The high-speed rotor end surface weight-reducing wind resistance reducing device according to claim 1, wherein an O-shaped sealing ring is further arranged between the rotor main body and the end cover pressing plate.

9. A high-speed rotor is characterized in that a weight-reducing and wind resistance reducing device of the end face of the high-speed rotor as claimed in claims 1-8 is installed in a weight-reducing hole of the high-speed rotor.