Wear-resistant vacuum pump rotor

Abstract

The wear-resistant vacuum pump rotor comprises a rotor body, a plurality of heat dissipation grooves are formed in one side of the outer surface of the rotor body, a plurality of rotor through holes are formed in one side of the interior of the rotor body in a penetrating mode, and a plurality of rotor heat dissipation holes are formed in the other side of the interior of the rotor body in a penetrating mode. One end of each rotor heat dissipation hole is communicated with one side of each rotor through hole in a penetrating manner, and the other end of each rotor heat dissipation hole is communicated with one side of each heat dissipation groove in a penetrating manner. By means of the structural design of the rotor heat dissipation holes and the rotor through holes, sucked air can enter the rotor through holes through the rotor heat dissipation holes while the rotor body rotates, the temperature in the rotor body is reduced, the thermal expansion of the rotor body is reduced, and therefore the air exhaust size of the vacuum pump can be increased, and the service life of the vacuum pump is prolonged. The service life of the vacuum pump is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pump rotors, in particular to a wear-resistant vacuum pump rotor. Background Art

[0002] A vacuum pump is a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to obtain a vacuum. When using a vacuum pump, a rotor needs to be installed to achieve efficient evacuation of the container. The rotor of the vacuum pump includes a vane rotor, a screw rotor, etc.

[0003] In the prior art, for example, Chinese patent CN217129906U discloses a vacuum pump rotor, including a rotor body, a mounting through hole formed in the middle of the rotor body, four equally spaced rotor slots formed around the mounting through hole, and a lubricating layer formed on the outer wall around the rotor body.

[0004] Although the above patent installs multiple graphite blocks on the outer surface of the rotor body to improve the lubrication of the rotor and the pump cavity and increase the service life of the rotor, the temperature of the rotor will gradually increase during long-term use, causing the rotor to expand thermally and the gap between the rotor and the pump body to become smaller, resulting in lower efficiency in pumping gas from the container, making it inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a wear-resistant vacuum pump rotor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant vacuum pump rotor, comprising a rotor body, a plurality of heat dissipation grooves are provided on one side of the outer surface of the rotor body, a plurality of rotor through holes are penetrated on one side of the interior of the rotor body, a plurality of rotor heat dissipation holes are penetrated on the other side of the interior of the rotor body, one end of the plurality of rotor heat dissipation holes are respectively penetrated and connected with one side of the plurality of rotor through holes, and the other end of the plurality of rotor heat dissipation holes are respectively penetrated and connected with one side of the plurality of heat dissipation grooves.

[0007] As a further preferred embodiment of the present technical solution, both ends of the rotor body are fixedly connected with rotating shafts, and one side of the outer surfaces of the two rotating shafts is fixedly installed with bearings.

[0008] As a further preferred embodiment of the present technical solution, a driving groove is provided on the other side of the outer surface of one of the rotating shafts.

[0009] As a further preferred embodiment of the present technical solution, a wear-resistant layer is fixedly connected to the outer surface of the rotor body, and a plurality of graphite blocks are fixedly connected to the outer surface of the wear-resistant layer.

[0010] As a further preferred embodiment of the present technical solution, a plurality of rotor blade mounting grooves are provided on the other side of the outer surface of the rotor body.

[0011] The utility model provides a wear-resistant vacuum pump rotor, which has the following beneficial effects:

[0012] (1) The utility model adopts the structural design of the rotor heat dissipation holes and the rotor through holes, so that the sucked gas can enter the rotor through holes through the rotor heat dissipation holes while the rotor body is rotating, thereby cooling the temperature inside the rotor body and reducing the thermal expansion of the rotor body, thereby increasing the size of the vacuum pump's suction and also increasing the service life of the vacuum pump.

[0013] (2) The utility model fixes the bearing in the vacuum pump so that when the rotating shaft rotates, the bearing rotates accordingly, thereby reducing the friction between the rotating shaft and the inside of the vacuum pump, thereby reducing the degree of wear of the rotor body and increasing the service life of the rotor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0016] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A area;

[0017] In the figure: 1. rotor body; 2. rotor through hole; 3. heat dissipation groove; 4. rotor heat dissipation hole; 5. wear-resistant layer; 6. graphite block; 7. rotating shaft; 8. bearing; 9. drive groove; 10. rotor blade mounting groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] The utility model provides a technical solution: Figure 1 - Figure 3As shown, in this embodiment, a wear-resistant vacuum pump rotor includes a rotor body 1, a plurality of heat dissipation grooves 3 are provided on one side of the outer surface of the rotor body 1, a plurality of rotor through holes 2 are penetrated on one side of the inner part of the rotor body 1, a plurality of rotor heat dissipation holes 4 are penetrated on the other side of the inner part of the rotor body 1, one end of the plurality of rotor heat dissipation holes 4 are respectively penetrated and connected with one side of the plurality of rotor through holes 2, and the other end of the plurality of rotor heat dissipation holes 4 are respectively penetrated and connected with one side of the plurality of heat dissipation grooves 3. Through the structural design of the rotor heat dissipation holes 4 and the rotor through holes 2, the inhaled gas can enter the rotor through holes 2 through the rotor heat dissipation holes 4 while the rotor body 1 rotates, so as to cool down the temperature in the rotor body 1 and reduce the thermal expansion of the rotor body 1, thereby increasing the size of the vacuum pump exhaust and also increasing the service life of the vacuum pump.

[0020] like Figure 1 and Figure 2 As shown, both ends of the rotor body 1 are fixedly connected with a rotating shaft 7, and one side of the outer surface of the two rotating shafts 7 is fixedly installed with a bearing 8. When the rotating shaft 7 rotates, the bearing 8 rotates accordingly, reducing the friction between the rotating shaft 7 and the inside of the vacuum pump, thereby reducing the degree of wear of the rotor body 1 and increasing the service life of the rotor body 1.

[0021] like Figure 1 As shown, a driving groove 9 is opened on the other side of the outer surface of one of the rotating shafts 7. Through the structural design of the driving groove 9, the output end of the driving motor of the vacuum pump can be fixed on the driving groove 9, so that the rotor body 1 can rotate in the vacuum pump.

[0022] like Figure 1 and Figure 2 As shown, a wear-resistant layer 5 is fixedly connected to the outer surface of the rotor body 1, and a plurality of graphite blocks 6 are fixedly connected to the outer surface of the wear-resistant layer 5. The structural design of the wear-resistant layer 5 and the graphite blocks 6 can improve the lubrication degree of the rotor body 1 and the vacuum pump cavity, and improve the wear resistance of the rotor body 1. The wear-resistant layer 5 is made of a nickel-based alloy, has high temperature resistance and strong corrosion resistance, and improves the service life of the rotor body 1.

[0023] like Figure 1 and Figure 2 As shown, a plurality of rotor blade installation grooves 10 are provided on the other side of the outer surface of the rotor body 1, and the rotor blades can be installed in the rotor blade installation grooves 10 through the rotor body 1, so that the vacuum pump can suck the gas in the container into the vacuum pump.

[0024] The utility model provides a wear-resistant vacuum pump rotor, and the specific working principle is as follows:

[0025] When the vacuum pump is used to extract the gas in the container, the rotating shaft 7 rotates and the bearing 8 rotates accordingly, thereby reducing the friction between the rotating shaft 7 and the inside of the vacuum pump, thereby reducing the degree of wear of the rotor body 1. While the rotor body 1 rotates in the vacuum pump, the gas enters the rotor through hole 2 through the rotor heat dissipation hole 4, cools the temperature in the rotor body 1, reduces the thermal expansion of the rotor body 1, and increases the service life of the rotor body 1.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant vacuum pump rotor, comprising a rotor body (1), characterized in that: A plurality of heat dissipation grooves (3) are provided on one side of the outer surface of the rotor body (1), a plurality of rotor through holes (2) are provided on one side of the interior of the rotor body (1), a plurality of rotor heat dissipation holes (4) are provided on the other side of the interior of the rotor body (1), one end of the plurality of rotor heat dissipation holes (4) are respectively connected to one side of the plurality of rotor through holes (2), and the other end of the plurality of rotor heat dissipation holes (4) are respectively connected to one side of the plurality of heat dissipation grooves (3).

2. A wear-resistant vacuum pump rotor according to claim 1, characterized in that: Both ends of the rotor body (1) are fixedly connected to a rotating shaft (7), and one side of the outer surface of the two rotating shafts (7) is fixedly mounted with a bearing (8).

3. A wear-resistant vacuum pump rotor according to claim 2, characterized in that: A driving groove (9) is provided on the other side of the outer surface of one of the rotating shafts (7).

4. A wear-resistant vacuum pump rotor according to claim 1, characterized in that: A wear-resistant layer (5) is fixedly connected to the outer surface of the rotor body (1), and a plurality of graphite blocks (6) are fixedly connected to the outer surface of the wear-resistant layer (5).

5. The wear-resistant vacuum pump rotor according to claim 1, characterized in that: A plurality of rotor blade mounting grooves (10) are provided on the other side of the outer surface of the rotor body (1).

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