CN217421518U - Screw structure in dry screw vacuum pump - Google Patents
Screw structure in dry screw vacuum pump Download PDFInfo
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- CN217421518U CN217421518U CN202220147508.4U CN202220147508U CN217421518U CN 217421518 U CN217421518 U CN 217421518U CN 202220147508 U CN202220147508 U CN 202220147508U CN 217421518 U CN217421518 U CN 217421518U
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Abstract
The utility model discloses a screw structure in a dry screw vacuum pump, relating to the field of dry screw vacuum pumps, which comprises a base, a table board and a screw rod fixing device, wherein the base is used for installing and fixing the screw rod of the vacuum pump; the rotating mechanism is arranged on the base and comprises a driving assembly arranged on the base and a rotating assembly arranged at one end of the driving assembly, the driving assembly is used for driving the rotating assembly to rotate, and the rotating assembly is used for generating suction; and the fixing mechanism is arranged below the rotating assembly and used for fixing the rotating assembly. The utility model relates to a screw rod structure among dry-type screw vacuum pump, when using this screw rod structure among the dry-type screw vacuum pump, drive the runner assembly through drive assembly and rotate, guarantee the normal operating of vacuum pump, drive assembly and runner assembly can maintain alone and change, have reduced the maintenance degree of difficulty, have also reduced the cost of maintenance simultaneously, have prolonged the life of vacuum pump.
Description
Technical Field
The utility model relates to a dry-type screw vacuum pump field, in particular to screw rod structure among dry-type screw vacuum pump.
Background
A dry screw vacuum pump is an air extractor which utilizes a pair of screws to do synchronous high-speed reverse rotation in a pump shell to generate air suction and exhaust functions, the two screws are finely balanced and corrected, supported by bearings and installed in the pump shell, and a certain gap is reserved between the screws, so that when the pump works, no friction exists between the screws, the operation is stable, the noise is low, and a working cavity does not need lubricating oil.
When a screw in an existing dry screw vacuum pump is used, a motor and the screw are mostly of an integrated structure, and replacement and maintenance are difficult.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a screw rod structure among dry-type screw vacuum pump has overcome the not enough of prior art, through drive assembly and rotating assembly's mutually meshing, realizes the rotation of screw rod, drives vacuum pump work, has that the change is convenient, cost of maintenance is low, fixed firm characteristics.
In order to solve the above problems, the utility model adopts the following technical proposal:
a screw structure in a dry screw vacuum pump comprises
The base comprises a table top and is used for installing and fixing a screw rod of the vacuum pump;
the rotating mechanism is arranged on the base and comprises a driving assembly arranged on the base and a rotating assembly arranged at one end of the driving assembly, the driving assembly is used for driving the rotating assembly to rotate, the rotating assembly is used for generating suction, the rotating assembly comprises two inner gears meshed with the two outer gears and two straight rods arranged at one ends of the two inner gears, and the outer surfaces of the straight rods are provided with spirals;
and the fixing mechanism is arranged below the rotating assembly and used for fixing the rotating assembly.
Further, drive assembly is including setting up two slide rails on the mesa and with two slide rail swing joint's two the movable plate is installed to two on the slide.
Further, the driving assembly further comprises a plurality of motor frames arranged on the moving plate and two driving motors arranged on the motor frames, two fixing bolts are further arranged on the motor frames and are provided with two screw holes, one end of each fixing bolt penetrates through the screw holes and is connected with the upper surface of the moving plate, the output end of each driving motor is connected with a rotating shaft, and the other end of each rotating shaft is provided with an outer gear.
Furthermore, the base still includes a plurality of bracing pieces of installing under the mesa and locates the switch on the mesa, and a plurality of the bracing piece other end all installs the backup pad.
Further, the fixing mechanism comprises two fixing wheels arranged on the outer surfaces of the two straight rods, a connecting plate is arranged between the two fixing wheels, and a vertical rod is arranged below the connecting plate.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses a drive assembly drives the runner assembly and rotates, guarantees the normal operating of vacuum pump, and drive assembly can maintain alone with the runner assembly and change, has reduced the maintenance degree of difficulty, has also reduced the cost of maintenance simultaneously, has prolonged the life of vacuum pump.
The utility model discloses a fixed establishment fixes the screw rod, can fix the screw rod under the condition that does not influence screw rod pivoted, prevents that the vacuum pump from taking place to rock when using.
The utility model has the characteristics of change convenience, low in maintenance cost, fixed firm.
Drawings
FIG. 1 is a schematic view showing an overall external structure of a screw structure in a dry screw vacuum pump;
FIG. 2 is a schematic diagram of a screw structure in a dry screw vacuum pump from a second perspective;
FIG. 3 is a schematic front view of a screw structure in a dry screw vacuum pump;
FIG. 4 is a schematic view of a screw structure of a dry screw vacuum pump, partially enlarged at A in FIG. 1;
fig. 5 is a partially enlarged schematic view of a screw structure B in fig. 2 in a dry screw vacuum pump.
In the figure: 100. a base; 101. a table top; 102. a support bar; 103. a switch; 104. a support plate; 200. a rotating mechanism; 201. a slide rail; 202. a slideway; 203. moving the plate; 204. a motor frame; 205. a drive motor; 206. fixing the bolt; 207. a rotating shaft; 208. an outer gear; 209. an inner gear; 210. a straight rod; 211. spiraling; 300. a fixing mechanism; 301. a fixed wheel; 302. a connecting plate; 303. a vertical rod.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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 as a specific case by those skilled in the art.
Referring to fig. 1-5, the present invention relates to a screw structure in a dry screw vacuum pump, which comprises
The base 100 comprises a table top 101 for mounting and fixing a screw rod of the vacuum pump;
the rotating mechanism 200 is arranged on the base 100 and comprises a driving component arranged on the base 100 and a rotating component arranged at one end of the driving component, the driving component is used for driving the rotating component to rotate, the rotating component is used for generating suction force, the rotating component comprises two inner gears 209 meshed with the two outer gears 208 and two straight rods 210 arranged at one ends of the two inner gears 209, the outer surfaces of the straight rods 210 are provided with spirals 211, and the directions of the two straight rods 210 are opposite;
and a fixing mechanism 300 disposed under the rotating assembly for fixing the rotating assembly.
When using this screw rod structure in dry-type screw vacuum pump, drive the runner assembly through drive assembly and rotate, guarantee the normal operating of vacuum pump, drive assembly can maintain alone with the runner assembly and change, has reduced the maintenance degree of difficulty, has also reduced the cost of maintenance simultaneously, has prolonged the life of vacuum pump, rethread fixed establishment 300 fixes the screw rod, can fix the screw rod under the condition that does not influence screw rod pivoted, prevent that the vacuum pump from taking place to rock when using.
In order to drive the driving motor 205 to move, the driving assembly includes two sliding rails 201 disposed on the table top 101 and two sliding ways 202 movably connected to the two sliding rails 201, and a moving plate 203 is mounted on the two sliding ways 202.
In order to provide power for the rotation of the screw, the driving assembly further comprises a plurality of motor frames 204 mounted on the moving plate 203 and two driving motors 205 arranged on the motor frames 204, two fixing bolts 206 are further arranged on the motor frames 204, two screw holes are formed in the two motor frames 204, one end of each fixing bolt 206 penetrates through the screw hole to be connected with the upper surface of the moving plate 203, the output end of each driving motor 205 is connected with a rotating shaft 207, and an outer gear 208 is arranged at the other end of each rotating shaft 207.
In order to mount and fix the vacuum pump, the base 100 further includes a plurality of support rods 102 installed under the table 101 and a switch 103 installed on the table 101, and a support plate 104 is installed at the other end of each of the plurality of support rods 102.
In order to prevent the screw from shaking during rotation, the fixing mechanism 300 comprises two fixing wheels 301 arranged on the outer surfaces of the two straight rods 210, a connecting plate 302 is arranged between the two fixing wheels 301, and a vertical rod 303 is arranged below the connecting plate 302.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a screw rod structure in dry-type screw vacuum pump which characterized in that: comprises that
The base (100) comprises a table top (101) for installing and fixing a screw rod of the vacuum pump;
the rotating mechanism (200) is arranged on the base (100) and comprises a driving assembly arranged on the base (100) and a rotating assembly arranged at one end of the driving assembly, the driving assembly is used for driving the rotating assembly to rotate, the rotating assembly is used for generating suction, the rotating assembly comprises two inner gears (209) meshed with the two outer gears (208) and two straight rods (210) arranged at one ends of the two inner gears (209), and the outer surfaces of the straight rods (210) are provided with spirals (211);
and the fixing mechanism (300) is arranged below the rotating assembly and used for fixing the rotating assembly.
2. The screw structure in a dry screw vacuum pump according to claim 1, characterized in that: the driving assembly comprises two sliding rails (201) arranged on the table board (101) and two sliding ways (202) movably connected with the two sliding rails (201), and a moving plate (203) is mounted on the two sliding ways (202).
3. The screw structure in a dry screw vacuum pump according to claim 2, characterized in that: the driving assembly further comprises a plurality of motor frames (204) arranged on the moving plate (203) and two driving motors (205) arranged on the motor frames (204), two fixing bolts (206) are further arranged on the motor frames (204) and are provided with two screw holes, one end of each fixing bolt (206) penetrates through the screw holes to be connected with the upper surface of the moving plate (203), the output end of each driving motor (205) is connected with a rotating shaft (207), and the other end of each rotating shaft (207) is provided with an outer gear (208).
4. The screw structure in a dry screw vacuum pump according to claim 1, characterized in that: the base (100) further comprises a plurality of support rods (102) arranged below the table board (101) and a switch (103) arranged on the table board (101), and support plates (104) are arranged at the other ends of the support rods (102).
5. The screw structure in a dry screw vacuum pump according to claim 1, characterized in that: fixing mechanism (300) is including installing two tight pulleys (301) in two straight-bar (210) surface, two be equipped with connecting plate (302) between tight pulley (301), install montant (303) under connecting plate (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220147508.4U CN217421518U (en) | 2022-01-19 | 2022-01-19 | Screw structure in dry screw vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220147508.4U CN217421518U (en) | 2022-01-19 | 2022-01-19 | Screw structure in dry screw vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421518U true CN217421518U (en) | 2022-09-13 |
Family
ID=83177288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220147508.4U Active CN217421518U (en) | 2022-01-19 | 2022-01-19 | Screw structure in dry screw vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421518U (en) |
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2022
- 2022-01-19 CN CN202220147508.4U patent/CN217421518U/en active Active
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