CN217632921U - Double-screw sealing structure of vacuum pump - Google Patents
Double-screw sealing structure of vacuum pump Download PDFInfo
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- CN217632921U CN217632921U CN202220065528.7U CN202220065528U CN217632921U CN 217632921 U CN217632921 U CN 217632921U CN 202220065528 U CN202220065528 U CN 202220065528U CN 217632921 U CN217632921 U CN 217632921U
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Abstract
The utility model discloses a double screw seal structure of vacuum pump, but including one side demountable installation have the vacuum pump subassembly of edulcoration subassembly, vacuum pump subassembly includes the inside vacuum pump shell of seting up the inner chamber, fixed mounting has the vacuum pump inner shell on the inner wall of inner chamber, and rotatable installation has first screw rod and second screw rod in the inner chamber, the outer fringe face one end fixed mounting of first screw rod has drive gear, and second screw rod outer fringe face has driven gear towards drive gear's one end fixed mounting, and drive gear is connected with driven gear meshing, and the vacuum pump shell is kept away from drive gear and driven gear's one end outer fringe face top fixed mounting placed in the middle has flange, has seted up the connecting hole in the connecting flange, and the through-hole of switch-on connecting hole and inner chamber is seted up to the position that the vacuum pump inner shell corresponds the connecting hole, and this vacuum pump's double screw seal structure is rational in infrastructure, is convenient for reduce the clearance of double screw rotation in-process, realizes better sealing, promotes vacuum pump work efficiency.
Description
Technical Field
The utility model belongs to the technical field of the vacuum pump, concretely relates to double screw seal structure of vacuum pump.
Background
The vacuum pump refers to a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical, chemical or physicochemical method. Generally, a vacuum pump is a device for improving, generating and maintaining a vacuum in a closed space by various methods, and basically, according to the operation principle of the vacuum pump, the vacuum pump can be divided into two types, i.e., a gas trap pump and a gas transfer pump. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.
Publication No. CN211009081U discloses a high-efficient twin-screw vacuum pump, is provided with the pump body, is provided with the screw rod in the pump body, the screw rod be the twin-screw structure, the twin-screw divide into screw rod A and screw rod B, screw rod A and screw rod B intermeshing the outside of the pump body be provided with the motor, be provided with the transmission shaft between motor and screw rod, the outside of the pump body be provided with the device that induced drafts, the device of induced drafting be induced draft the port, be provided with the multiple-layer filtration sponge at the port of induced drafting, can rely on the multiple-layer filtration sponge to carry out the absorption and the isolation of dust, avoid large granule impurity and dust to enter into the vacuum pump, influenced the safety and stable operation of vacuum pump, be provided with heat dissipation protection part in the outside of the pump body, when the heat is great, rely on the ejecting adjusting ball of heat, let the heat can spill.
Above-mentioned patent relies on the multiple-layer filtering sponge to carry out the absorption and the isolation of dust when using, avoid large granule impurity and dust to enter into the vacuum pump, the inner structure that can filter the sponge is comparatively fine and close, block up the port that induced drafts, lead to gaseous when inhaling to receive great hindrance, influence the work efficiency of twin-screw vacuum pump, and present twin-screw vacuum pump is when using, its twin-screw has certain rotational speed difference when rotating, unable synchronous matching rotational speed, lead to the twin-screw to have certain clearance when rotating, influence work efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double screw seal structure of vacuum pump to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme does:
the double-screw sealing structure of the vacuum pump comprises a vacuum pump component with one side detachably provided with an impurity removal component;
the vacuum pump assembly comprises an inner cavity-provided vacuum pump outer shell, a vacuum pump inner shell is fixedly mounted on the inner wall of the inner cavity, a first screw rod and a second screw rod are rotatably mounted in the inner cavity, a transmission gear is fixedly mounted at one end of the outer edge surface of the first screw rod, a driven gear is fixedly mounted at one end of the outer edge surface of the second screw rod, which faces the transmission gear, and the transmission gear is meshed with the driven gear.
Furthermore, a connecting flange is fixedly mounted on the top of the outer edge face of one end, away from the transmission gear and the driven gear, of the outer shell of the vacuum pump in the middle, a connecting hole is formed in the connecting flange, and a through hole for communicating the connecting hole with the inner cavity is formed in the position, corresponding to the connecting hole, of the inner shell of the vacuum pump.
Further, the impurity removing assembly comprises impurity removing boxes with connecting lugs constructed in an annular array mode on the outer edge face, and connecting bolts capable of being screwed into the connecting lugs and the vacuum pump shell are arranged on one sides, far away from the vacuum pump shell, of the connecting lugs.
Furthermore, an impurity removal bin is arranged in the impurity removal box in the middle, and a ventilation net is fixedly arranged on one side, far away from the vacuum pump shell, of the impurity removal box.
Further, fixed being provided with the active carbon between two parties in the edulcoration storehouse, and the equal fixed mounting in both sides that lie in the active carbon in the edulcoration storehouse has the edulcoration net.
Compared with the prior art, the utility model discloses following beneficial effect has: thanks to the arrangement of the first screw rod, the transmission gear, the second screw rod and the driven gear, the first screw rod can be driven to rotate by the driving device, so that the transmission gear rotates, the driven gear meshed with the transmission gear can rotate when the transmission gear rotates, the second screw rod is driven to rotate, air suction and exhaust are realized under the high-speed reverse rotation of the first screw rod and the second screw rod, the normal work of the vacuum pump is realized, the rotating speeds of the first screw rod and the second screw rod can be synchronized through the meshing of the transmission gear and the driven gear, the meshing gap existing in the rotating process of the first screw rod and the second screw rod is reduced, the better sealing effect is realized, and the working efficiency of the vacuum pump is improved;
benefit from the setting of edulcoration subassembly, the vacuum pump is at the in-process of breathing in, and the air is at first in entering into the edulcoration storehouse through ventilative net to through the impurity filtering of edulcoration net and active carbon in with the air, can not block up the port that induced drafts, be favorable to maintaining the normal operating of vacuum pump.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the impurity removing assembly of the present invention;
FIG. 3 is a schematic view of the internal structure of the impurity removing assembly of the present invention;
fig. 4 is a schematic diagram of the internal structure of the vacuum pump assembly of the present invention.
In the figure: 1. a vacuum pump assembly; 101. a vacuum pump housing; 102. an inner cavity; 103. a connecting flange; 104. connecting holes; 105. a first screw; 106. a transmission gear; 107. a second screw; 108. a driven gear; 109. a vacuum pump inner casing; 2. an impurity removal component; 201. removing impurities; 202. connecting lugs; 203. a connecting bolt; 204. a breathable net; 205. removing impurities by a net; 206. activated carbon.
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.
As shown in fig. 1-4, the twin-screw sealing structure of the vacuum pump comprises a vacuum pump assembly 1 with a trash removal assembly 2 detachably mounted on one side;
the vacuum pump assembly 1 comprises a vacuum pump outer shell 101, an inner cavity 102 is formed in the vacuum pump outer shell 101, a vacuum pump inner shell 109 is fixedly installed on the inner wall of the inner cavity 102, a first screw 105 and a second screw 107 are rotatably installed in the inner cavity 102, a transmission gear 106 is fixedly installed at one end of the outer edge surface of the first screw 105, a driven gear 108 is fixedly installed at one end, facing the transmission gear 106, of the outer edge surface of the second screw 107, the transmission gear 106 is meshed with the driven gear 108, and the transmission gear 106 is connected with the driven gear 108 in a meshed mode.
A connecting flange 103 is fixedly mounted at the top of the outer edge surface of one end of the vacuum pump outer shell 101, which is far away from the transmission gear 106 and the driven gear 108, in the middle, a connecting hole 104 is formed in the connecting flange 103, and a through hole for communicating the connecting hole 104 with the inner cavity 102 is formed in the position of the vacuum pump inner shell 109, which corresponds to the connecting hole 104.
The impurity removing assembly 2 comprises an impurity removing box 201, wherein connecting lugs 202 are configured on the outer edge surface in an annular array, and one side, away from the vacuum pump shell 101, of each connecting lug 202 is provided with a connecting bolt 203 which can be screwed into the corresponding connecting lug 202 and the vacuum pump shell 101.
Wherein, the edulcoration storehouse has been seted up in the middle in the miscellaneous box 201 that removes, and the one side fixed mounting that the vacuum pump casing 101 was kept away from to miscellaneous box 201 has ventilative net 204.
Wherein, fixed being provided with active carbon 206 placed in the middle in the edulcoration storehouse, and the equal fixed mounting in both sides that lies in active carbon 206 in the edulcoration storehouse has edulcoration net 205, benefits from edulcoration subassembly 2's setting, and the vacuum pump is in the in-process of breathing in, and the air is at first in entering into the edulcoration storehouse through ventilative net 204 to through the impurity filtering of edulcoration net 205 and active carbon 206 in with the air, can not block up the port that induced drafts, be favorable to maintaining the normal operating of vacuum pump.
The working principle is as follows: this twin-screw seal structure of vacuum pump, during the use, it rotates to first screw 105 accessible drive arrangement drive, this drive arrangement can select for use the motor, thereby make drive gear 106 rotate, drive gear 106 can make when rotating and rotate rather than the driven gear 108 of meshing, thereby drive second screw 107 and rotate, realize breathing in and exhaust under the high-speed reverse rotation of first screw 105 and second screw 107 and realize the normal work of vacuum pump, and can synchronize the rotational speed of first screw 105 and second screw 107 through the meshing of drive gear 106 with driven gear 108, reduce the meshing clearance that first screw 105 and second screw 107 exist at the rotation in-process, the vacuum pump is carrying out the in-process of breathing in, the air at first enters into the edulcoration storehouse through ventilative net 204, and through the impurity filtering in the air of edulcoration net 205 and active carbon 206, the port that induced drafts can not blockked up, this twin-screw seal structure of vacuum pump, rational in infrastructure, be convenient for reducing the clearance in the twin-screw rotation in-process, realize better sealing, the work efficiency of vacuum pump is promoted.
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 double-screw sealing structure of the vacuum pump comprises a vacuum pump component (1) with one side detachably provided with an impurity removal component (2);
the method is characterized in that: vacuum pump unit spare (1) is including inside vacuum pump outer shell (101) of seting up inner chamber (102), fixed mounting has vacuum pump inner shell (109) on the inner wall of inner chamber (102), and rotatable mounting has first screw rod (105) and second screw rod (107) in inner chamber (102), the outer fringe face one end fixed mounting of first screw rod (105) has drive gear (106), the one end fixed mounting of second screw rod (107) outer fringe face towards drive gear (106) has driven gear (108), drive gear (106) are connected with driven gear (108) meshing.
2. A twin-screw sealing structure of a vacuum pump according to claim 1, characterized in that: a connecting flange (103) is fixedly mounted at the top of the outer edge face of one end, away from the transmission gear (106) and the driven gear (108), of the vacuum pump outer shell (101) in the middle, a connecting hole (104) is formed in the connecting flange (103), and a through hole communicated with the connecting hole (104) and the inner cavity (102) is formed in the position, corresponding to the connecting hole (104), of the vacuum pump inner shell (109).
3. A twin-screw sealing structure of a vacuum pump according to claim 1, characterized in that: the impurity removing assembly (2) comprises impurity removing boxes (201) with connecting lugs (202) constructed in an annular array mode on the outer edge face, and connecting bolts (203) capable of being screwed into the connecting lugs (202) and the vacuum pump shell (101) are arranged on one side, away from the vacuum pump shell (101), of each connecting lug (202).
4. A twin-screw sealing structure of a vacuum pump according to claim 3, characterized in that: an impurity removing bin is arranged in the impurity removing box (201) in the middle, and a ventilating net (204) is fixedly arranged on one side, far away from the vacuum pump shell (101), of the impurity removing box (201).
5. The twin-screw sealing structure of a vacuum pump according to claim 4, characterized in that: fixed being provided with active carbon (206) between two parties in the edulcoration storehouse, and the equal fixed mounting in both sides that lie in active carbon (206) in the edulcoration storehouse has edulcoration net (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220065528.7U CN217632921U (en) | 2022-01-12 | 2022-01-12 | Double-screw sealing structure of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220065528.7U CN217632921U (en) | 2022-01-12 | 2022-01-12 | Double-screw sealing structure of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217632921U true CN217632921U (en) | 2022-10-21 |
Family
ID=83643140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220065528.7U Active CN217632921U (en) | 2022-01-12 | 2022-01-12 | Double-screw sealing structure of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217632921U (en) |
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2022
- 2022-01-12 CN CN202220065528.7U patent/CN217632921U/en active Active
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