Two-stage air-cooled Roots vacuum pump

Abstract

The utility model provides a two-stage air-cooled Roots vacuum pump, which relates to the technical field of vacuum pumps and comprises a main body mechanism, the outer surface wall of the main body mechanism is in contact with an outer frame mechanism, the outer frame mechanism comprises two large outer frames, cooling grooves are formed in the two large outer frames, holes are formed in one sides of the outer walls of the two large outer frames, and the holes are communicated with the cooling grooves. One side of the outer wall of each large body outer frame is fixedly connected with an air pump, and the output ends of the two air pumps communicate with the interior of the air pipe. When the device is used, the main body mechanism is mounted in the outer frame mechanism, high temperature generated in the vacuum pump main body is in contact with low temperature conveyed into the cooling tanks, and neutralization of the high temperature and the low temperature is formed in the two cooling tanks, so that the vacuum pump is cooled, and the device is good in cooling effect and high in practicability. High temperature accumulation in the device is avoided, and the service life of the device can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to a two-stage air-cooled Roots vacuum pump. Background Art

[0002] The two-stage air-cooled Roots vacuum pump achieves gas compression and transportation through the mutual meshing of two Roots gears. When the gears rotate, the gas in the working room will be pushed toward the outlet as the gears rotate, thereby realizing the exhaust function. Due to the special tooth shape of the Roots gears, the compression of the gas in the working room is relatively small, so high-speed exhaust and high-efficiency exhaust functions can be achieved.

[0003] When the existing Roots vacuum pump is used for a long time, the most common way to dissipate heat is to rely on the thermal conductivity of the material of the outer wall of the vacuum pump to transfer the heat outward. This heat dissipation method is not only unsatisfactory in effect, but also easily causes heat to accumulate inside the vacuum pump, which easily causes melting of its internal components, thereby reducing the service life of the device. Utility Model Content

[0004] The utility model aims to solve the problem that the heat inside the above equipment cannot be effectively discharged when in use, which easily leads to the accumulation of heat inside the vacuum pump, and proposes a two-stage air-cooled Roots vacuum pump.

[0005] In order to achieve the above-mentioned object, the utility model adopts the following technical scheme: a two-stage air-cooled Roots vacuum pump, comprising a main body mechanism, the outer wall of the main body mechanism contacts an outer frame mechanism;

[0006] The outer frame mechanism includes two large outer frames, cooling grooves are provided inside the two large outer frames, holes are provided on one side of the outer walls of the two large outer frames, air pumps are fixedly connected to one side of the outer walls of the two large outer frames, and the output ends of the two air pumps are connected to the inside of the air pipe.

[0007] Preferably, an inner connecting pipe is movably inserted between the inner surface walls of the two groups of holes, and the inner surface walls of the two general outer frames are fixedly connected with a temperature conducting ring.

[0008] Preferably, a group of engaging grooves are provided on one side of the outer walls of the two substantial outer frames, and an engaging plate is fixedly connected between the inner surface walls of the two groups of engaging grooves by screws.

[0009] Preferably, the main body mechanism includes a vacuum pump body, and the outer wall of the vacuum pump body is fixedly connected with two connecting pipes.

[0010] Preferably, two rotation driving grooves are provided on one side of the outer wall of the vacuum pump body, and Roots gears are movably inserted into the inner surface walls of the two rotation driving grooves.

[0011] Preferably, one side of the outer wall of the two Roots gears is fixedly connected to a driving motor, and one side of the outer wall of the two driving motors is fixedly connected to one side of the outer wall of the vacuum pump body.

[0012] Preferably, the outer wall of the vacuum pump body is in contact with the inner walls of the two outer frames, and the inner walls of the two temperature conducting rings are in contact with the outer wall of the vacuum pump body.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, under the action of the main body mechanism and the outer frame mechanism, when the device is in use, the main body mechanism is installed inside the outer frame mechanism, and the high temperature generated inside the vacuum pump body contacts the low temperature transported to the inside of the cooling tank, and the high and low temperatures are neutralized inside the two cooling tanks, thereby completing the cooling treatment of the vacuum pump, and the device has a good cooling effect, avoiding the accumulation of high temperature inside the device, and can increase the service life of the device.

[0015] 2. In the utility model, under the action of the main body mechanism and the outer frame mechanism, the main body mechanism is installed inside the outer frame mechanism, and the connection between the two outer frames is achieved by embedding the two snap plates inside the snap grooves. This installation method is not only convenient for installing the device, but also allows the device to be quickly disassembled when the vacuum pump body inside is damaged at a later time, so as to facilitate maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a main structural stereogram of a two-stage air-cooled Roots vacuum pump;

[0017] Figure 2 The utility model provides a three-dimensional split view of the main mechanism of a two-stage air-cooled Roots vacuum pump;

[0018] Figure 3 The utility model provides a three-dimensional disassembled diagram of the outer frame mechanism in a two-stage air-cooled Roots vacuum pump;

[0019] Figure 4 The utility model provides a partial sectional stereoscopic diagram of an outer frame mechanism in a two-stage air-cooled Roots vacuum pump.

[0020] Legend: 1. Main structure; 101. Vacuum pump body; 102. Connecting pipe; 103. Driving groove; 104. Roots gear; 105. Driving motor;

[0021] 2. Outer frame mechanism; 201. Overall outer frame; 202. Cooling groove; 203. Holes; 204. Air pump; 205. Air pipe; 206. Internal connecting pipe; 207. Temperature conducting ring; 208. Clamping groove; 209. Clamping plate. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a two-stage air-cooled Roots vacuum pump, comprising a main body mechanism 1, the outer wall of the main body mechanism 1 is in contact with an outer frame mechanism 2;

[0025] The outer frame mechanism 2 includes two large outer frames 201, the interiors of the two large outer frames 201 are provided with cooling grooves 202, one side of the outer walls of the two large outer frames 201 are provided with holes 203, one side of the outer walls of the two large outer frames 201 are fixedly connected with air pumps 204, and the output ends of the two air pumps 204 are connected to the inside of the air pipe 205, an internal connecting pipe 206 is movably inserted between the inner walls of the two groups of holes 203, the inner walls of the two large outer frames 201 are fixedly connected with temperature conducting rings 207, one side of the outer walls of the two large outer frames 201 are provided with a group of engaging grooves 208, and a engaging plate 209 is fixedly connected between the inner walls of the two groups of engaging grooves 208 by screws.

[0026] The effect achieved by the entire embodiment 1 is that, first, the four internal connecting pipes 206 are respectively inserted between the inner walls of the two groups of holes 203. In this fixed insertion state, the two cooling tanks 202 can be effectively connected to each other, and when the cold gas is transported to the interior of the two cooling tanks 202, the cold gas can be kept flowing inside the two cooling tanks 202 through the connection of the four internal connecting pipes 206.

[0027] Embodiment 2, as Figure 2-Figure 4As shown, the main mechanism 1 includes a vacuum pump body 101, the outer wall of the vacuum pump body 101 is fixedly connected with two connecting pipes 102, one side of the outer wall of the vacuum pump body 101 is provided with two driving grooves 103, the inner walls of the two driving grooves 103 are movably inserted with Roots gears 104, one side of the outer wall of the two Roots gears 104 is fixedly connected with a driving motor 105, and one side of the outer wall of the two driving motors 105 is fixedly connected to one side of the outer wall of the vacuum pump body 101, the outer wall of the vacuum pump body 101 is in contact with the inner walls of the two large outer frames 201, and the inner walls of the two temperature conductive rings 207 are in contact with the outer wall of the vacuum pump body 101.

[0028] The effect achieved by the entire embodiment 2 is that, first, two connecting pipes 102 are fixedly connected on the outer wall of the vacuum pump body 101. When the gas can enter the interior of the vacuum pump body 101 through the connecting pipe 102 at the top, and the Roots gears 104 inside it are mutually transmitted, the gas can be compressed, and then the compressed gas can be transported out through the connecting pipe 102 at the bottom.

[0029] The method of use and working principle of the device: First, before using the device, the device is installed. The two large outer frames 201 are sleeved between the outer walls of the vacuum pump body 101, and the two groups of engaging grooves 208 are kept aligned. Then, the two engaging plates 209 are inserted into the two groups of engaging grooves 208 and fixed by screws, so that the two large outer frames 201 and the vacuum pump body 101 can be connected to each other. After the overall device is installed, the vacuum pump body 101 inside it can absorb external gas into the interior of the vacuum pump body 101 through the connecting pipe 102 on its top when it is in use, and Driven by two external driving motors 105, the two Roots gears 104 are kept in a counter-rotation inside the vacuum pump body 101 to complete the effective compression of the gas. The compressed gas can be output through the connecting pipe 102 at the bottom thereof. In this process, the internal temperature of the vacuum pump body 101 will be caused. The outer wall of the vacuum pump body 101 is in contact with a temperature conducting ring 207, so that the generated high temperature can be transferred to the outside. Under the action of the two external air pumps 204, the cooled gas can be transported to the inside of the two cooling tanks 202 to keep the cold and hot gases neutralized inside, thereby cooling the vacuum pump body 101.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A two-stage air-cooled Roots vacuum pump, characterized in that: It comprises a main body mechanism (1), wherein an outer wall of the main body mechanism (1) contacts an outer frame mechanism (2); The outer frame mechanism (2) comprises two large outer frames (201), the interiors of the two large outer frames (201) are provided with cooling grooves (202), one side of the outer walls of the two large outer frames (201) are provided with holes (203), one side of the outer walls of the two large outer frames (201) are fixedly connected with air pumps (204), and the output ends of the two air pumps (204) are connected to the interior of the air pipe (205).

2. A two-stage air-cooled Roots vacuum pump according to claim 1, characterized in that: An inner connecting pipe (206) is movably inserted between the inner surfaces of the two groups of holes (203), and a temperature conducting ring (207) is fixedly connected to the inner surfaces of the two main outer frames (201).

3. A two-stage air-cooled Roots vacuum pump according to claim 2, characterized in that: A group of engaging grooves (208) are provided on one side of the outer walls of the two main outer frames (201), and an engaging plate (209) is fixedly connected between the inner surface walls of the two groups of engaging grooves (208) by screws.

4. A two-stage air-cooled Roots vacuum pump according to claim 3, characterized in that: The main body mechanism (1) comprises a vacuum pump body (101), and the outer wall of the vacuum pump body (101) is fixedly connected to two connecting pipes (102).

5. A two-stage air-cooled Roots vacuum pump according to claim 4, characterized in that: Two rotation-driving grooves (103) are provided on one side of the outer wall of the vacuum pump body (101), and roots gears (104) are movably inserted into the inner surface walls of the two rotation-driving grooves (103).

6. A two-stage air-cooled Roots vacuum pump according to claim 5, characterized in that: One side of the outer wall of the two Roots gears (104) is fixedly connected to a driving motor (105), and one side of the outer wall of the two driving motors (105) is fixedly connected to one side of the outer wall of the vacuum pump body (101).

7. A two-stage air-cooled Roots vacuum pump according to claim 6, characterized in that: The outer wall of the vacuum pump body (101) contacts the inner walls of the two outer frames (201), and the inner walls of the two temperature conducting rings (207) contact the outer wall of the vacuum pump body (101).

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