CN116538088A - Slide valve vacuum pump - Google Patents

Abstract

The utility model relates to a slide valve vacuum pump, it includes the pump body, discharge valve, main oil tank and auxiliary oil tank, the pump body is equipped with the passageway of giving vent to anger, discharge valve connects in the break-make that is used for controlling the passageway of giving vent to anger in the passageway of giving vent to anger, main oil tank connects in the upper end of the pump body, main oil tank is equipped with the main oil pocket, when discharge valve was opened, main oil pocket intercommunication in the passageway of giving vent to anger, the outer wall of main oil tank lower extreme is equipped with the oil guide mouth, the oil guide mouth communicates in the main oil pocket, the height of main oil pocket diapire rises along with keeping away from the oil guide mouth, auxiliary oil tank connects in the outer wall of the pump body, auxiliary oil tank is equipped with auxiliary oil pocket, auxiliary oil tank's outer wall is equipped with the intercommunication mouth, the intercommunication mouth is used for the intercommunication oil guide mouth and auxiliary oil pocket, auxiliary oil tank's outer wall is equipped with the oil inlet, the pump body is equipped with the oil inlet, the oil pumping mouth communicates in oil inlet and auxiliary oil pocket. The oil drop sediment is stored in the auxiliary oil tank from the main oil tank, so that the adhesion of impurities to the main oil tank is reduced, and the oil entering the pump body is oil without impurities above the auxiliary oil tank, so that the service life of the vacuum pump is prolonged.

Description

Slide valve vacuum pump

Technical Field

The present application relates to the field of vacuum pumps, and in particular to a slide valve vacuum pump.

Background

The slide valve vacuum pump, namely the valve type oil seal mechanical pump (short slide valve pump) is a variable capacity type gas transmission pump like a rotary vane pump, but compared with a 2X rotary vane vacuum pump, the slide valve vacuum pump has a plurality of times higher durability, and the application range and the application condition are basically the same as those of the rotary vane pump.

Slide valve vacuum pumps contain four main components: the device comprises a shaft, an eccentric wheel, a slide valve and a guide rail body, wherein the eccentric wheel is arranged on the shaft, the slide valve is concentric with the eccentric wheel, when the slide valve sleeved on the eccentric wheel rotates along the excircle of a pump cavity, the space between the slide valve and the pump cavity is alternately changed from maximum to zero to realize the air suction function, and in order to prevent the moving parts from contacting each other, a constant gap is kept between the slide valve, the guide rail body, the eccentric wheel and the pump cavity, so that the gap between the moving parts is necessarily sealed by pump oil and used as a lubricating material, and meanwhile, the pump oil can also take away heat generated by gas compression, so that the temperature in the pump is reduced.

The utility model patent with the publication number of CN102434461B discloses a slide valve vacuum pump, which solves the problems of more complex structure, high production cost and the like of the existing slide valve vacuum pump.

However, under the excessive operating mode of dust greasy dirt such as metal smelting or heat treatment trade, a large amount of dust impurity that the pump was taken in through the air inlet can mix in the pump oil, causes the pump oil pollution easily, and pump oil moisture is many, viscosity is high, impurity can influence the life of vacuum pump more.

Disclosure of Invention

In order to extend the service life of the vacuum pump, the present application provides a slide valve vacuum pump.

The application provides a slide valve vacuum pump adopts following technical scheme:

the utility model provides a slide valve vacuum pump, includes the pump body, discharge valve, main oil tank and auxiliary oil tank, the pump body is equipped with the passageway of giving vent to anger, discharge valve connects in the passageway of giving vent to anger and is used for controlling the break-make of passageway of giving vent to anger, main oil tank connects in the upper end of the pump body, main oil tank is equipped with the main oil pocket, when discharge valve was opened, main oil pocket intercommunication is in the passageway of giving vent to anger, the outer wall of main oil tank lower extreme is equipped with the oil guide mouth, the oil guide mouth communicates in the main oil pocket, the height of main oil pocket diapire is along with keeping away from the oil guide mouth and rising, auxiliary oil tank connects in the outer wall of the pump body, auxiliary oil tank is equipped with auxiliary oil chamber, auxiliary oil tank's outer wall is equipped with the intercommunication mouth, auxiliary oil tank's outer wall is equipped with the oil extraction mouth, the pump body is equipped with the oil inlet, the oil extraction mouth communicates in oil inlet and auxiliary oil chamber.

Through adopting above-mentioned technical scheme, gas gets into main oil pocket from the passageway of giving vent to anger in, the oil droplet of gas take-out falls into main oil pocket, the deposit such as dust, impurity in the oil droplet can be passed through the oil guide mouth from main oil tank and shift and store in auxiliary oil tank, the adhesion of impurity to main oil tank has been reduced, the oil pumping mouth sets up in auxiliary oil tank's upper end, the oil that gets into the pump body is the oil that auxiliary oil tank top does not contain impurity, avoided leading to the fact the oil circuit to block up because of inhaling too much particulate matter of impurity, the performance of the pump body has been guaranteed, the life of vacuum pump has been prolonged.

Preferably, the oil pumping device further comprises an oil delivery pipe, one end of the oil delivery pipe is connected to the inner wall of the oil pumping port, and the other end of the oil delivery pipe is connected to the inner wall of the oil inlet.

By adopting the technical scheme, the oil delivery pipe is convenient to connect the oil pumping port of the auxiliary oil tank and the oil inlet of the pump body, and the slide valve vacuum pump is convenient to assemble.

Preferably, the oil delivery pipe further comprises a liquid flow indicator, the oil delivery pipe comprises a connecting pipe and an oil pipe, one end of the connecting pipe is connected to the inner wall of the oil pumping port, the other end of the connecting pipe is communicated with one end of the liquid flow indicator, the other end of the liquid flow indicator is communicated with one end of the oil pipe, and the other end of the oil pipe is connected to the inner wall of the oil inlet.

Through adopting above-mentioned technical scheme, the oil that comes out from auxiliary oil tank passes through the liquid flow indicator, can see the velocity of flow and the cleanliness etc. of oil through naked eye observation liquid flow indicator, is convenient for clear away the impurity in the auxiliary oil tank, has guaranteed the performance of the pump body, has prolonged the life of vacuum pump.

Preferably, the oil filter is fixedly connected to the inner wall of the auxiliary oil cavity, and the oil filter is communicated with the oil delivery pipe.

Through adopting above-mentioned technical scheme, use the oil filter to be convenient for filter the oil that gets into the pump body, reduce the impurity content that gets into in the oil circuit in the pump body, guaranteed the performance of the pump body, reduced the damage to the pump body, prolonged the life of vacuum pump.

Preferably, the oil delivery pipe further comprises an electromagnetic valve, and the electromagnetic valve is connected to the oil delivery pipe and used for controlling the on-off of the oil delivery pipe.

By adopting the technical scheme, the oil delivery pipe is controlled to supply oil to the pump body through the electromagnetic valve, so that the operation is simple and convenient, and the control is convenient.

Preferably, the device further comprises a impurity removing pipe and a valve, wherein the outer wall of the lower end of the auxiliary oil tank is provided with an impurity removing port, one end of the impurity removing pipe is connected to the inner wall of the impurity removing port, and the valve is connected to the impurity removing pipe and used for controlling the on-off of the impurity removing pipe.

Through adopting above-mentioned technical scheme, when the impurity in the auxiliary tank stores too much, open the valve, impurity is direct to be discharged outside the auxiliary tank from the edulcoration mouth of auxiliary tank lower part.

Preferably, the bottom wall of the auxiliary oil cavity is raised with distance from the impurity removing port.

Through adopting above-mentioned technical scheme, the impurity deposit of being convenient for is close to the one end of edulcoration mouth, and the auxiliary tank of being convenient for discharges impurity.

Preferably, the auxiliary oil tank comprises a tank body and a cover plate, wherein one end of the tank body, which is away from the pump body, is provided with a mounting opening, and the cover plate is detachably connected to the outer wall of the tank body and covers the mounting opening.

Through adopting above-mentioned technical scheme, be convenient for demolish the apron and clear up the box, extension auxiliary tank's life.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the gas enters the main oil cavity from the gas outlet channel, oil drops carried by the gas fall into the main oil cavity, dust, impurities and other sediments in the oil drops can be transferred from the main oil tank to be stored in the auxiliary oil tank through the oil guide port, the adhesion of impurities to the main oil tank is reduced, the oil pumping port is arranged at the upper end of the auxiliary oil tank, the oil entering the pump body is oil without impurities above the auxiliary oil tank, the oil path blockage caused by excessive particulate matters sucked in the impurities is avoided, the performance of the pump body is ensured, and the service life of the vacuum pump is prolonged;

2. oil from the auxiliary oil tank passes through the liquid flow indicator, and the flow speed, the cleanliness and the like of the oil can be seen by observing the liquid flow indicator by naked eyes, so that impurities in the auxiliary oil tank can be conveniently removed, the performance of a pump body is ensured, and the service life of the vacuum pump is prolonged;

3. the oil filter is convenient for filter the oil entering the pump body, reduces the impurity content entering the oil way in the pump body, ensures the performance of the pump body, reduces the damage to the pump body and prolongs the service life of the vacuum pump.

Drawings

Fig. 1 is a schematic view of the overall structure of a slide valve vacuum pump.

Fig. 2 is a schematic view of the internal structure of the slide valve vacuum pump in a cut-away state.

Fig. 3 is a cross-sectional view of a slide valve vacuum pump.

Fig. 4 is a cross-sectional view of a slide valve vacuum pump, mainly for illustrating a body, a rotary shaft, a driving medium, and an oil pump.

Fig. 5 is a schematic view of the overall structure of the auxiliary tank and the oil delivery member.

Fig. 6 is a schematic view of the internal structure of the auxiliary tank and the fuel delivery member, with the auxiliary tank and the fuel delivery member broken away.

Fig. 7 is a schematic view of the internal structure of the auxiliary fuel tank and the fuel delivery member, which is mainly used for displaying the fuel delivery member.

Reference numerals illustrate: 1. a pump body; 11. a body; 111. a pump chamber; 112. an air intake passage; 113. an air outlet channel; 114. a first fixing groove; 12. a rotating shaft; 121. an oil delivery passage; 13. an eccentric wheel; 14. a valve sleeve; 15. a slide valve; 16. a transmission member; 161. a driving motor; 162. a first pulley; 163. a second pulley; 164. a synchronous belt; 17. an oil pump; 171. an oil inlet; 2. a main oil tank; 21. a main oil chamber; 22. a second fixing groove; 23. an oil guide port; 3. an exhaust valve; 4. an auxiliary oil tank; 41. a case; 411. a connection port; 412. a mounting port; 413. a connecting groove; 414. a connection hole; 415. a mounting groove; 416. removing impurities; 417. an oil pumping port; 42. a backing plate; 421. a through hole; 43. a cover plate; 431. perforating; 44. an auxiliary oil chamber; 45. a communication port; 5. an oil delivery member; 51. an auxiliary oil pipe; 52. a communication valve; 53. a impurity removing pipe; 54. a valve; 55. an oil delivery pipe; 551. a connecting pipe; 552. oil pipe; 56. an oil filter; 57. a flow indicator; 58. a solenoid valve.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

The embodiment of the application discloses a slide valve vacuum pump. Referring to fig. 1 and 2, the slide valve vacuum pump includes a pump body 1, a main tank 2, an exhaust valve 3, an auxiliary tank 4, and an oil delivery member 5.

Referring to fig. 1 and 2, the pump body 1 includes a body 11, a rotary shaft 12, an eccentric 13, a valve housing 14, a spool 15, a transmission 16, and an oil pump 17.

Referring to fig. 2, a body 11 is provided with a pump cavity 111, a rotating shaft 12 is rotatably connected to an inner wall of the pump cavity 111, a rotating axis of the rotating shaft 12 is collinear with an axis of the pump cavity 111, an eccentric wheel 13 is fixedly connected to an outer wall of the rotating shaft 12, a valve sleeve 14 is arranged in the pump cavity 111, the valve sleeve 14 is sleeved on the outer periphery of the eccentric wheel 13, two ends of the eccentric wheel 13 are respectively and slidably connected to the inner wall of the valve sleeve 14, a slide valve 15 is fixedly connected to the outer wall of the valve sleeve 14, an air inlet channel 112 is arranged on the outer wall of the body 11, the slide valve 15 is slidably connected to the inner wall of the air inlet channel 112, the air inlet channel 112 is communicated with the pump cavity 111, and one end, far away from the slide valve 15, of the valve sleeve 14 is slidably connected to the inner wall of the pump cavity 111.

Referring to fig. 2 and 3, the lower end of the main oil tank 2 is fixedly connected to the upper end of the body 11, the main oil tank 2 is provided with a main oil cavity 21, the main oil tank 2 and the upper end of the body 11 are surrounded to form the main oil cavity 21, the upper end of the body 11 is provided with an air outlet channel 113, the air outlet channel 113 extends into the main oil cavity 21, the air outlet valve 3 is connected to the air outlet channel 113 for controlling the on-off of the air outlet channel 113, and when the air outlet valve 3 is opened, the air outlet channel 113 is communicated with the main oil cavity 21 and the pump cavity 111.

Referring to fig. 4, the transmission 16 includes a driving motor 161, a first pulley 162, a second pulley 163, and a timing belt 164. The motor casing of driving motor 161 is fixedly connected to the upper end of main oil tank 2, and first band pulley 162 coaxial fixed connection is in driving motor 161's motor shaft outer wall, and the both ends of pivot 12 extend outside body 11, and the outer wall that the coaxial fixed connection of second band pulley 163 is close to driving motor 161 one end in pivot 12, and the periphery of first band pulley 162 and second band pulley 163 is located to the hold-in range 164 cover.

The rotating shaft 12 is coaxially provided with an oil conveying channel 121, the oil conveying channel 121 extends along the axial direction of the rotating shaft 12, a pump shell of the oil pump 17 is fixedly connected to the outer wall of one end of the body 11, which is far away from the second belt pulley 163, and an oil outlet of the oil pump 17 is communicated with the oil conveying channel 121.

Referring to fig. 5 and 6, the auxiliary tank 4 includes a tank body 41, a pad 42, and a cover plate 43.

Referring to fig. 2 and 6, the outer wall of the case 41 is provided with a connection port 411 and a mounting port 412, the connection port 411 is disposed opposite to the mounting port 412, the length of the connection port 411 is smaller than the length of the mounting port 412, and the width of the connection port 411 is smaller than the width of the mounting port 412. The periphery of connector 411 is equipped with spread groove 413, the notch of spread groove 413 is towards body 11, tie plate 42 inlays in spread groove 413 and covers connector 411, the tank bottom of spread groove 413 is equipped with connecting hole 414, connecting hole 414 is equipped with a plurality of, a plurality of connecting holes 414 are along the length direction and the width direction interval setting of spread groove 413, tie plate 42 is equipped with through-hole 421, through-hole 421 is equipped with a plurality of, the quantity of through-hole 421 is the same with the quantity of connecting hole 414, through-hole 421 and connecting hole 414 one-to-one set up, the one end that body 11 deviates from inlet channel 112 is equipped with first fixed slot 114, the one end that main tank 2 was towards box 41 is equipped with second fixed slot 22, the sum of the quantity of first fixed slot 114 and the quantity of second fixed slot 22 equals the quantity of connecting hole 414, correspond threaded connection respectively in the cell wall of first fixed slot 114 and the cell wall of second fixed slot 22 behind a plurality of screw penetration connecting hole 414 and the through-hole 421.

The periphery of installing port 412 is equipped with a plurality of mounting grooves 415, the notch orientation of mounting groove 415 deviates from the one end of body 11, a plurality of mounting grooves 415 set up along the length direction and the width direction interval of mounting port 412, apron 43 is equipped with a plurality of perforation 431, the quantity of perforation 431 is the same with the quantity of mounting groove 415, perforation 431 and mounting groove 415 one-to-one set up, screw runs through perforation 431 back threaded connection in the cell wall of mounting groove 415, apron 43 laminating is in the one end that box 41 deviates from body 11 and covers mounting port 412.

Referring to fig. 6 and 7, the case 41 is provided with an auxiliary oil chamber 44, the auxiliary oil chamber 44 is communicated with a mounting port 412 and a connecting port 411, one end of the case 41 facing away from the mounting port 412 is provided with a communication port 45, the height of the communication port 45 is larger than the height of the bottom wall of the main oil chamber 21, the axis of the communication port 45 is parallel to the width direction of the case 41, two communication ports 45 are provided, and two communication ports 45 are provided on both sides of the connecting port 411.

Referring to fig. 2 and 7, the outer wall of the main oil tank 2 facing away from the air inlet passage 112 is provided with two oil guide ports 23, the lower ends of the oil guide ports 23 are attached to the bottom wall of the main oil chamber 21, the two oil guide ports 23 are opposite to the communication port 45, and the bottom wall of the main oil chamber 21 rises along with being far away from the tank 41.

Referring to fig. 6 and 7, the oil delivery member 5 includes an auxiliary oil pipe 51, a communication valve 52, a trash removal pipe 53, a valve 54, an oil delivery pipe 55, an oil filter 56, a flow indicator 57, and a solenoid valve 58.

Referring to fig. 2 and 6, one end of the auxiliary oil pipe 51 is fixedly connected to the inner wall of the oil guide port 23, the other end of the auxiliary oil pipe 51 is fixedly connected to the inner wall of the communication port 45, the communication valve 52 is connected to the auxiliary oil pipe 51, the communication valve 52 is used for controlling on-off of the auxiliary oil pipe 51, and the communication valve 52 is a ball valve.

Referring to fig. 7, the outer wall of the lower end of the case 41 is provided with a impurity removing port 416, the axis of the impurity removing port 416 is parallel to the length direction of the case 41, one end of the impurity removing pipe 53 is fixedly connected to the inner wall of the impurity removing port 416, the valve 54 is connected to the impurity removing pipe 53, the valve 54 is used for controlling on-off of the impurity removing pipe 53, and the valve 54 is a ball valve.

Referring to fig. 4 and 7, an oil suction port 417 is provided at an end of the case 41 facing away from the second pulley 163, and the oil pump 17 is provided with an oil inlet 171.

Referring to fig. 5 and 7, the oil delivery pipe 55 includes a connection pipe 551 and an oil passing pipe 552, the oil filter 56 is fixedly connected to the inner wall of the auxiliary oil chamber 44, the outer wall of the connection pipe 551 is fixedly connected to the inner wall of the oil pumping port 417, the outer diameter of the connection pipe 551 is equal to the diameter of the oil pumping port 417, one end of the connection pipe 551 provided in the auxiliary oil chamber 44 is communicated with the oil filter 56, one end of the connection pipe 551 remote from the oil filter 56 is communicated with one end of the flow indicator 57, one end of the oil passing pipe 552 is communicated with the other end of the flow indicator 57, the other end of the oil passing pipe 552 is connected to the inner wall of the oil inlet 171, the electromagnetic valve 58 is connected to the oil passing pipe 552 and is used for controlling on-off of the oil passing pipe 552,

the implementation principle of the slide valve 15 vacuum pump in the embodiment of the application is as follows: the gas enters the pump cavity 111 from the gas inlet channel 112, leaves the pump cavity 111 from the gas outlet channel 113, the discharged gas brings oil drops, impurities deposited by the gas are contained in the oil drops, the oil drops fall into the main oil cavity 21, enter the auxiliary oil cavity 44 along the bottom wall of the main oil cavity 21, and are accumulated on one side close to the impurity removing port 416 along the bottom wall of the auxiliary oil cavity 44, the oil pump 17 pumps clean oil at the upper part of the auxiliary oil tank 4, enters the pump cavity 111, and is filtered through the oil filter 56 before being pumped, the impurity content in the oil is observed through the liquid flow indicator 57, and when the impurities in the auxiliary oil tank 4 are accumulated to a certain degree, the valve 54 is opened, and the oil containing the impurities is discharged.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A slide valve vacuum pump, characterized by: comprises a pump body (1), an exhaust valve (3), a main oil tank (2) and an auxiliary oil tank (4), wherein the pump body (1) is provided with an air outlet channel (113), the exhaust valve (3) is connected with the air outlet channel (113) for controlling the on-off of the air outlet channel (113), the main oil tank (2) is connected with the upper end of the pump body (1), the main oil tank (2) is provided with a main oil cavity (21), when the exhaust valve (3) is opened, the main oil cavity (21) is communicated with the air outlet channel (113), the outer wall of the lower end of the main oil tank (2) is provided with an oil guide port (23), the oil guide port (23) is communicated with the main oil cavity (21), the bottom wall of the main oil cavity (21) is lifted along with the distance from the oil guide port (23), the auxiliary oil tank (4) is connected with the outer wall of the pump body (1), the auxiliary oil tank (4) is provided with an auxiliary oil cavity (44), the outer wall of the auxiliary oil tank (4) is provided with a communication port (45), the communication port (45) is used for communicating the oil guide port (23) with the auxiliary oil cavity (44), the outer wall of the auxiliary oil tank (4) is provided with an oil inlet (171), the oil pumping port (417) is communicated with the oil inlet (171) and the auxiliary oil cavity (44).

2. The slide valve vacuum pump of claim 1, wherein: the oil pumping device further comprises an oil conveying pipe (55), one end of the oil conveying pipe (55) is connected to the inner wall of the oil pumping port (417), and the other end of the oil conveying pipe (55) is connected to the inner wall of the oil inlet (171).

3. The slide valve vacuum pump of claim 2, wherein: still include liquid flow indicator (57), defeated oil pipe (55) include connecting pipe (551) and lead to oil pipe (552), the one end of connecting pipe (551) is connected in the inner wall of oil pumping mouth (417), the other end of connecting pipe (551) communicates in the one end of liquid flow indicator (57), the other end of liquid flow indicator (57) communicates in the one end of leading to oil pipe (552), the other end of leading to oil pipe (552) is connected in the inner wall of oil inlet (171).

4. The slide valve vacuum pump of claim 2, wherein: the oil filter (56) is fixedly connected to the inner wall of the auxiliary oil cavity (44), and the oil filter (56) is communicated with the oil conveying pipe (55).

5. The slide valve vacuum pump of claim 2, wherein: the oil delivery pipe is characterized by further comprising an electromagnetic valve (58), wherein the electromagnetic valve (58) is connected to the oil delivery pipe (55) and used for controlling the on-off of the oil delivery pipe (55).

6. The slide valve vacuum pump of claim 1, wherein: still include edulcoration pipe (53) and valve (54), the outer wall of auxiliary tank (4) lower extreme is equipped with edulcoration mouth (416), the inner wall in edulcoration mouth (416) is connected to the one end of edulcoration pipe (53), valve (54) are connected in edulcoration pipe (53) and are used for controlling the break-make of edulcoration pipe (53).

7. The slide valve vacuum pump of claim 6, wherein: the height of the bottom wall of the auxiliary oil cavity (44) increases with distance from the impurity removing port (416).

8. The slide valve vacuum pump of claim 1, wherein: the auxiliary oil tank (4) comprises a tank body (41) and a cover plate (43), wherein an installation opening (412) is formed in one end, deviating from the pump body (1), of the tank body (41), and the cover plate (43) is detachably connected to the outer wall of the tank body (41) and covers the installation opening (412).