CN214944958U - Belt type vacuum pump - Google Patents
Belt type vacuum pump Download PDFInfo
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- CN214944958U CN214944958U CN202120250349.6U CN202120250349U CN214944958U CN 214944958 U CN214944958 U CN 214944958U CN 202120250349 U CN202120250349 U CN 202120250349U CN 214944958 U CN214944958 U CN 214944958U
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- pump body
- pump
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Abstract
The utility model provides a belt vacuum pump, including the pump body, pump cover and drive assembly, its characterized in that: the side surface of the pump body is provided with two gas channels, and a connecting section extends between the bottom of any one of the gas channels and the pump body; the inner cavity of the pump body, the gas channel and the connecting section are communicated; the pump cover is connected to the top of the pump body; the driving assembly penetrates through the pump cover and is rotationally arranged in the pump body to drive gas to flow; the driving assembly comprises a rotating shaft, a rotor and a scraping blade, the rotating shaft is rotatably arranged in the pump body, one end of the rotating shaft extends out of the pump cover, the rotor is connected to the rotating shaft and rotates along with the rotating shaft, and the scraping blade is arranged on the side face of the rotor. The utility model discloses change gas flow path, the gas velocity of flow is fast, and exhaust efficiency is high.
Description
Technical Field
The utility model relates to a vacuum pump, especially a belt vacuum pump.
Background
The belt type vacuum pump is a water diversion device commonly used in a hand-lift fire pump, discharges air in a water pump and a water suction pipe, forms a certain vacuum degree in the water pump, enables water at a water source to enter the water pump under the action of atmospheric pressure, and completes the whole water diversion work.
When the belt type vacuum pump works, the common water diversion mode adopts end part air inlet and outlet, the air inlet end and the air outlet end are arranged at the end surface of the pump body, air enters the pump body and is vertical to the rotating direction of the rotor and the scraping blade, the impact force and the friction force are large, the air movement resistance is large, the air flow rate is slow, and the vacuumizing efficiency is low;
when the end portion is adopted for air inlet and outlet, the rotor and the end face of the pump body are directly rubbed, the friction force is large, more energy is consumed, and the service life of the vacuum pump is short.
Disclosure of Invention
To exist not enough among the prior art, the utility model provides a belt vacuum pump adopts the side to advance to give vent to anger, increases the gas flow rate, and terminal surface configuration abrasionproof piece reduces the friction, further improves evacuation efficiency. The utility model adopts the technical proposal that:
a belt vacuum pump comprises a pump body, a pump cover and a driving assembly, wherein two gas channels are arranged on the side surface of the pump body, and a connecting section extends between the bottom of any one of the gas channels and the pump body; the inner cavity of the pump body, the gas channel and the connecting section are communicated;
the pump cover is connected to the top of the pump body;
the driving assembly penetrates through the pump cover and is rotationally arranged in the pump body to drive gas to flow;
the driving assembly comprises a rotating shaft, a rotor and a scraping blade, the rotating shaft is rotatably arranged in the pump body, one end of the rotating shaft extends out of the pump cover, the rotor is connected to the rotating shaft and rotates along with the rotating shaft, and the scraping blade is arranged on the side face of the rotor.
Further, the rotating shaft is eccentrically arranged relative to the pump body, a plurality of sliding grooves are formed in the side face of the rotor, and the scraping blades slide in the sliding grooves and do not separate from the sliding grooves.
Furthermore, the bottom of the pump body is provided with an anti-abrasion sheet, and the end face of the rotor is attached to the anti-abrasion sheet.
Further, the other end of the rotating shaft is connected with a belt pulley.
Further, the side face of the pump body is provided with a plurality of mounting flanges.
The utility model has the advantages that:
1. two gas channels are configured on the side surface, and air is fed and exhausted at one end of the pump body, so that the gas flow direction is changed on the premise of not changing the original external structure, and the gas flow direction is the same as the movement direction of the scraper when entering the inner cavity of the pump body, thereby greatly reducing the impact and friction, accelerating the gas flow speed, reducing the existence time of the gas in the pump body, accelerating the vacuumizing speed, reducing the abrasion of a rotor, and not influencing the original size installation condition of the pump body;
2. the end part adopts the anti-abrasion piece to separate the rotor and the pump body, so that the friction force of the end surface is reduced, the energy consumption and the abrasion of the rotor are reduced, the gas flowing speed is favorably improved, and the vacuumizing efficiency is improved.
Drawings
Fig. 1 is a front sectional view of the present invention.
Fig. 2 is a top cross-sectional view of the present invention.
Fig. 3 is a gas flow route diagram of the present invention.
In the figure: 1-pump body, 2-pump cover, 3-rotating shaft, 4-anti-wear sheet, 5-rotor, 6-scraping sheet, 7-chute, 8-belt pulley, 101-gas channel, 102-opening, and 103-connecting section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1-2, the present invention provides a belt vacuum pump, which includes a pump body 1, a pump cover 2 and a driving assembly, wherein two gas channels 101 are configured on the side surface of the pump body 1, and a connecting section 103 extends between the bottom of any one of the gas channels 101 and the pump body 1; specifically, the side surface of the pump body 1 is configured with two jackets, a gas channel 101 is formed between the jackets and the pump body 1, and the jackets can be integrated with the pump body 1 or can be made into other sealing connection modes such as a split welding mode and the like; the connecting section 103 is used for connecting other components, and the direction of the connecting section can extend to the radial direction or the axial direction of the body according to the requirement, so that the installation of the vacuum pump in the existing use environment is not influenced, the use environment does not need to be changed, and the applicability is strong;
the inner cavity of the pump body 1, the gas channel 101 and the connecting section 103 are communicated; an opening 102 is arranged between the two gas channels 101 and the pump body 1, the shape of the opening 102 is spiral, the section of the opening 102 at the gas inlet end is gradually increased along the gas flowing direction, and the section of the opening 102 at the gas outlet end is gradually decreased along the gas flowing direction.
The pump cover 2 is connected to the top of the pump body 1; the pump cover 2 is used for sealing the pump body 1; usually, the pump cover 2 and the pump body 1 are fixed through bolts;
the driving assembly penetrates through the pump cover 2 and is rotationally arranged in the pump body 1 to drive gas to flow; the driving component realizes rotation to drive the gas to flow;
the driving assembly comprises a rotating shaft 3, a rotor 5 and a scraping blade 6, the rotating shaft 3 is rotatably arranged in the pump body 1, one end of the rotating shaft extends out of the pump cover 2, the rotor 5 is connected to the rotating shaft 3 and rotates along with the rotating shaft 3, and the scraping blade 6 is arranged on the side surface of the rotor 5; wherein, rotor 5 is connected with 3 keys of pivot, and is simple and convenient.
The rotating shaft 3 is eccentrically arranged relative to the pump body 1, a plurality of sliding grooves 7 are formed in the side face of the rotor 5, and the scraping blade 6 slides in the sliding grooves 7 and does not separate from the sliding grooves 7; specifically, the number of the sliding grooves 7 and the number of the scraping blades 6 are 4, and the scraping blades 6 slide out of the sliding grooves 7 and cling to the inner wall of the pump body 1 under the action of centrifugal force in the rotating process of the rotor 5, so that the scraping blades 6 slide in the sliding grooves 7 in a reciprocating mode while rotating, and gas is sent into the gas channel 101 at the gas outlet end.
The bottom of the pump body 1 is provided with an anti-wear sheet 4, the end surface of the rotor 5 is attached to the anti-wear sheet 4, the end surface of the rotor 5 is always contacted with the anti-wear sheet 4 in the rotating process of the rotor 5, and the friction between the anti-wear sheet 4 and the rotor 5 is reduced by utilizing the anti-wear effect of the anti-wear sheet 4; specifically, the wear-resistant sheet 4 is a ceramic sheet.
In order to ensure the stable rotation of the rotating shaft 3, the other end of the rotating shaft 3 is provided with an external thread, and a belt pulley 8 is arranged through two nuts; the belt pulley 8 is connected with a belt and then is provided with a power source, so that the belt pulley 8 can rotate stably.
In order to facilitate the installation and positioning of the pump body 1, a plurality of installation flanges are configured on the side surface of the pump body 1.
The working principle is as follows:
referring to fig. 3, the belt pulley 8 rotates under the action of the power source to drive the rotating shaft 3 and the rotor 5 to rotate synchronously, the rotor 5 drives the scraper to slide in the chute 7 and rotate in a manner of being attached to the inner wall of the pump body 1, gas enters the gas channel 101 at one side from the connecting section 103 at one side and then enters the pump body 1 through the opening 102 at one side, and after rotating for a certain angle in the pump body 1 along with the movement of the scraper, the gas enters the gas channel 101 at the other side from the opening 102 at the other side and finally is discharged from the opening 102 at the other side, so that the whole vacuumizing process is completed.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a belt vacuum pump, includes pump body (1), pump cover (2) and drive assembly, its characterized in that: the side surface of the pump body (1) is provided with two gas channels (101), and a connecting section (103) extends between the bottom of any one of the gas channels (101) and the pump body (1); the inner cavity of the pump body (1), the gas channel (101) and the connecting section (103) are communicated;
the pump cover (2) is connected to the top of the pump body (1);
the driving assembly penetrates through the pump cover (2) and is rotationally arranged in the pump body (1) to drive gas to flow;
the driving assembly comprises a rotating shaft (3), a rotor (5) and a scraping piece (6), the rotating shaft (3) is rotatably arranged in the pump body (1), one end of the rotating shaft extends out of the pump cover (2), the rotor (5) is connected to the rotating shaft (3) and rotates along with the rotating shaft (3), and the scraping piece (6) is arranged on the side face of the rotor (5).
2. The belt-type vacuum pump according to claim 1, characterized in that: the rotating shaft (3) is eccentrically arranged relative to the pump body (1), a plurality of sliding grooves (7) are formed in the side face of the rotor (5), and the scraping blade (6) slides in the sliding grooves (7) and does not separate from the sliding grooves (7).
3. The belt-type vacuum pump according to claim 1 or 2, characterized in that: the anti-abrasion pump is characterized in that an anti-abrasion piece (4) is arranged at the bottom of the pump body (1), and the end face of the rotor (5) is attached to the anti-abrasion piece (4).
4. The belt-type vacuum pump according to claim 1, characterized in that: the other end of the rotating shaft (3) is connected with a belt pulley (8).
5. The belt-type vacuum pump according to claim 1, characterized in that: a plurality of mounting flanges are configured on the side face of the pump body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120250349.6U CN214944958U (en) | 2021-01-29 | 2021-01-29 | Belt type vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120250349.6U CN214944958U (en) | 2021-01-29 | 2021-01-29 | Belt type vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214944958U true CN214944958U (en) | 2021-11-30 |
Family
ID=79100524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120250349.6U Active CN214944958U (en) | 2021-01-29 | 2021-01-29 | Belt type vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214944958U (en) |
-
2021
- 2021-01-29 CN CN202120250349.6U patent/CN214944958U/en active Active
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