CN210686302U - Water lubrication screw type air compressor - Google Patents
Water lubrication screw type air compressor Download PDFInfo
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- CN210686302U CN210686302U CN201920902077.6U CN201920902077U CN210686302U CN 210686302 U CN210686302 U CN 210686302U CN 201920902077 U CN201920902077 U CN 201920902077U CN 210686302 U CN210686302 U CN 210686302U
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- rotating shaft
- air compressor
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Abstract
The utility model discloses a water lubrication screw type air compressor, which comprises a motor connecting seat, an end cover connected with the motor connecting seat and a shell connected with the motor connecting seat and internally provided with a cavity, wherein a rotor with a rack is axially arranged in the shell, the rotor comprises a rotating body and a rotating shaft, the surface of the rotating shaft is provided with a spiral groove, the spiral groove is opposite to the rotating direction of the rack of the rotating body, a bearing is arranged between the rotating shaft and the shell, a mechanical seal is also arranged between the bearing and the shell, a first shaft seal at one side of the bearing is provided with a second shaft seal at the other side, a cavity is arranged between the first shaft seal and the mechanical seal, a drain hole communicated with the outside is arranged at the bottom end of the cavity, a water outlet is arranged at the side of the motor connecting seat with stronger stress capacity, the safety of the, the water can be discharged through the water discharging holes of the cavity, so that the relative rotation between the rotating body and the rotating shaft can be timely found when the rotor rotates.
Description
Technical Field
The utility model relates to an air compressor equipment technical field specifically is a water lubricated screw air compressor.
Background
In industrial production, an air compressor (also called as an air compressor) is a widely used device, and is an engineering device for pressurizing atmosphere into high-pressure gas.
The air compressor comprises a screw air compressor, most of the existing air compressors are cooled by adopting oil, but certain pollution can be caused by adopting the oil, the existing air compressors which are cooled by utilizing water lubrication exist in the market at present, but the water tightness is not ideal enough, the situation can not be found in time when water leakage just occurs, corresponding measures are taken to increase the water leakage flow, water flows into equipment such as a bearing and the like to cause serious damage to the equipment, the production cost is indirectly improved, the existing rotor is easy to cause relative rotation between a rotating shaft and a rotating body when rotating and pressurizing, the equipment is easy to break down, an air outlet of the existing air compressor is arranged at the rear end of a shell, as the air pressure of the air outlet is larger, the rear end cover of the shell is thinner and has weaker pressure resistance, and when the air pressure is sufficiently large, the rear end cover can not bear the pressure, equipment damage and safety accidents may result.
And promote the development and invention.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned not enough, provide a water lubricated screw air compressor.
In order to achieve the above object, the technical solution of the present invention is: a water lubrication screw type air compressor comprises a motor connecting seat, an end cover connected with the motor connecting seat and a shell which is connected with the motor connecting seat and is internally provided with a cavity, wherein a rotor with a rack is axially arranged in the shell, the rotor comprises a rotating body and a rotating shaft, the rotating shaft is sleeved on the surface of the rotating shaft, the surface of the rotating shaft is provided with a spiral groove, the rotating direction of the spiral groove is opposite to that of the rack of the rotating body, a bearing is arranged between the rotating shaft and the shell, a mechanical seal is also arranged between the bearing and the shell and used for preventing fluid substances in the shell from entering the bearing, one side of the bearing, which is close to the mechanical seal, is provided with a first shaft seal sleeved on the rotating shaft, the other side of the bearing is provided with a second shaft seal sleeved on the rotating shaft, and the first shaft seal, the second shaft seal is used for preventing dust from entering the bearing, a cavity is arranged between the first shaft seal and the mechanical seal, a drain hole communicated with the outside is formed in the bottom end of the cavity, an air inlet communicated with the cavity of the shell is formed in the surface of the shell, a water inlet communicated with the cavity of the shell is formed in the side face of the shell, an air outlet is formed in one side of the motor connecting seat, and the air outlet is communicated with the cavity of the shell.
Preferably, the bottom of motor connecting seat with the bottom of casing all is equipped with the drag hook device, the drag hook device includes closing cap and drag hook, the closing cap with drag hook fixed connection, the accessible the closing cap will the drag hook is followed the bottom of motor connecting seat or the bottom of casing is impeld and is pulled out.
Preferably, mechanical seal includes quiet sealing ring and moves the sealing ring, quiet sealing ring with move the sealing ring and laminate mutually, move the sealing ring pass through the spring with the pivot is connected, just the pivot can drive move the sealing ring and rotate.
Preferably, a wear-resistant coating is arranged between the first shaft seal and the rotating shaft, and the wear-resistant coating covers the surface of the end part of the rotating shaft.
Preferably, the rotor comprises a male rotor and a female rotor, and the male rotor and the female rotor are identical in structure and are connected in a meshing manner through racks.
Preferably, the housing is made of a stainless steel material.
Preferably, the swivel is made of PEEK material.
Preferably, the rotor slot size ratio of the male rotor to the female rotor is 7: 5.
preferably, the surface of the shell is provided with a through hole.
Preferably, a gasket is arranged between the shell and the cover.
Through adopting foretell technical scheme, the beneficial effects of the utility model are that: through the cavity between the mechanical seal and the first shaft seal and the drain hole, the sealing performance is strong, even if water leaks, the water can be drained through the drain hole of the cavity, the water can be found in time, and corresponding measures can be taken; make the rotor when rotating through the spiral recess, turn and can not take place relative rotation between the pivot, set up the delivery port in the motor connecting seat side that the atress ability is stronger, guaranteed the safety of human body and equipment, pull out through the drag hook and can conveniently look over whether full and make things convenient for the change of lubricating oil in the bearing.
Drawings
FIG. 1 is a schematic view of the air compressor of the present invention;
FIG. 2 is a schematic view of the exploded structure of the air compressor of the present invention;
FIG. 3 is a schematic view of the structure of the motor connecting seat of the present invention;
FIG. 4 is a schematic view of the housing structure of the present invention;
FIG. 5 is a schematic view of the rotor structure of the present invention;
FIG. 6 is a schematic view of the structure of the rotating shaft of the present invention;
description of the main reference numerals: 1 motor connecting seat, 2 end covers, 3 shells, 4 rotors, 41 rotators, 42 rotating shafts, 5 bearings, 6 mechanical seals, 61 movable sealing rings, 62 static sealing rings, 7 springs, 8 first shaft seals, 9 second shaft seals, 10 spiral grooves, 11 hook devices, 111 sealing covers, 112 hooks, 12 gaskets, 13 female rotors, 14 male rotors, 15 air inlets, 16 water inlets, 17 through holes, 18 wear-resistant coatings, 19 air outlets, 20 water drainage holes and 21 chambers.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1-6, the present invention relates to a water-lubricated screw air compressor, which includes a motor connecting seat 1, an end cap 22 connected to the motor connecting seat 1, and a casing 3 connected to the motor connecting seat 1 and having a hollow interior, wherein a rotor 4 having a rack is axially disposed inside the casing 3, the rotor 4 includes a rotating body 41 and a rotating shaft 42, the rotating shaft 42 is sleeved on the surface of the rotating shaft 42, the surface of the rotating shaft 42 is provided with a spiral groove 10, the spiral groove 10 is opposite to the rack rotating direction of the rotating body 41, a bearing 5 is disposed between the rotating shaft 42 and the casing 3, a mechanical seal 6 is further disposed between the bearing 5 and the casing 3, the mechanical seal 6 is used for preventing fluid substances in the casing 3 from entering the bearing 5, a first shaft seal 8 sleeved on the rotating shaft 42 is disposed on one side of the bearing 5 close to the mechanical seal 6, the other side is provided with a second shaft seal 9 sleeved on the rotating shaft 42, the first shaft seal 8 is used for preventing lubricating oil in the bearing 5 from entering the mechanical seal 6, the second shaft seal 9 is used for preventing dust from entering the bearing 5, a cavity 21 is arranged between the first shaft seal 8 and the mechanical seal 6, a drain hole 20 communicated with the outside is arranged at the bottom end of the cavity 21, an air inlet 15 communicated with the cavity of the shell 3 is arranged on the surface of the shell 3, a water inlet 16 communicated with the cavity of the shell 3 is arranged on the side surface of the shell, an air outlet 19 is arranged on one side of the motor connecting seat 1, and the air outlet 19 is communicated with the cavity of the shell 3; atmospheric air enters the housing 3 from the air inlet 15, the rotor 4 rotates to pressurize the atmospheric air, water flows into the housing 3 from the water inlet 16 to achieve the effects of cooling and lubricating and filling the gap of the rotor 4, pressurized air flows out from the air outlet 19, and when the rotor 4 rotates, the rotation shaft 42 and the rotator 41 rotate simultaneously, the spiral groove 10 rotates in the opposite direction to the rotation of the rotator 41, so that relative rotation between the rotator 41 and the rotation shaft 42 does not occur, by means of the cavity 21 between the mechanical seal 6 and the first shaft seal 8 and the drain hole 20, the sealing performance is strong, even if water leaks, the water can be discharged through the water discharge hole 20 of the chamber 21, and can be found in time, and takes corresponding measures, the water outlet is arranged on the side surface of the motor connecting seat 1 with stronger stress capacity, the safety of human body and equipment is ensured, the draw hook 112 is pulled out, so that whether the lubricating oil in the bearing 5 is filled or not can be checked conveniently, and the lubricating oil can be replaced conveniently.
As shown in fig. 2, the bottom of the motor connecting seat 1 and the bottom of the housing 3 are both provided with a hook device 11, the hook device 11 includes a cover 111 and a hook 112, the cover 111 is fixedly connected with the hook 112, and the hook 112 can be pushed in and pulled out from the bottom of the motor connecting seat 1 or the bottom of the housing 3 through the cover 111; when adding lubricating oil in bearing 5, pull out drag hook 112 through snatching closing cap 111, when the surface of drag hook 112 drips lubricating oil, indicate that the lubricating oil in the bearing 5 reaches the saturation, can conveniently look over whether full and make things convenient for the change of lubricating oil in the bearing 5.
As shown in fig. 2, the mechanical seal 6 includes a static seal ring 62 and a dynamic seal ring 61, the static seal ring 62 is attached to the dynamic seal ring 61, the dynamic seal ring 61 is connected to the rotating shaft 42 through a spring 7, and the rotating shaft 42 can drive the dynamic seal ring 61 to rotate; the mechanical seal 6 is formed by the joint of the movable seal ring 61 and the static seal ring 62, and the sealing performance is good.
As shown in fig. 6, a wear-resistant coating 18 is disposed between the first shaft seal 8 and the rotating shaft 42, and the wear-resistant coating 18 covers the end surface of the rotating shaft 42; the smoothness of the contact surface of the rotary shaft 42 with the first shaft seal 8 and the hardness of the rotary shaft 42 are improved.
As shown in fig. 2, the rotor 4 comprises a male rotor 14 and a female rotor 13, and the male rotor 14 and the female rotor 13 are identical in structure and are connected through rack meshing; the male rotor 14 and the female rotor 13 rotate in mesh with each other, thereby pressurizing the atmosphere.
The housing 3 is made of stainless steel material; so that the housing 3 is not easily rusted.
The swivel 41 is made of PEEK material; the PEEK material has strong heat resistance and stable insulativity.
As shown in fig. 2, the size ratio of the rotor slots of the male rotor 14 to the female rotor 13 is 7: 5; the pressurizing effect is better when the male rotor 14 and the female rotor 13 rotate and pressurize.
As shown in fig. 4, the surface of the housing 3 is provided with a through hole 17; facilitating heat dissipation within the housing 3.
As shown in fig. 2, a gasket 12 is disposed between the housing 3 and the cover 111; to prevent pressure, corrosion, and natural thermal expansion and contraction leakage of the tubing between the cover 111 and the housing 3.
The above-mentioned, only preferred embodiments of the present invention are described, the scope of the present invention cannot be limited, and all the equivalent changes and decorations made according to the claims of the present invention should still fall within the scope covered by the present invention.
Claims (10)
1. The utility model provides a water lubrication screw air compressor, includes the motor connecting seat, the end cover be connected with the motor connecting seat and the inside that is connected with the motor connecting seat is the casing of cavity, its characterized in that: the rotor with a rack is axially arranged in the shell, the rotor comprises a rotating body and a rotating shaft, the rotating shaft is sleeved on the surface of the rotating shaft, the surface of the rotating shaft is provided with a spiral groove, the rotation direction of the spiral groove is opposite to that of the rack of the rotating body, a bearing is arranged between the rotating shaft and the shell, a mechanical seal is further arranged between the bearing and the shell and used for preventing fluid substances in the shell from entering the bearing, one side, close to the mechanical seal, of the bearing is provided with a first shaft seal sleeved on the rotating shaft, the other side of the bearing is provided with a second shaft seal sleeved on the rotating shaft, the first shaft seal is used for preventing lubricating oil in the bearing from entering the mechanical seal, the second shaft seal is used for preventing dust from entering the bearing, a cavity is arranged between the first shaft seal and the mechanical seal, and the bottom end, the motor connecting seat is characterized in that an air inlet communicated with the shell cavity is formed in the surface of the shell, a water inlet communicated with the shell cavity is formed in the side face of the shell, an air outlet is formed in one side of the motor connecting seat, and the air outlet is communicated with the shell cavity.
2. The water lubricated screw air compressor of claim 1, wherein: the bottom of motor connecting seat with the bottom of casing all is equipped with the drag hook device, the drag hook device includes closing cap and drag hook, the closing cap with drag hook fixed connection, the accessible the closing cap will the drag hook is followed the bottom of motor connecting seat or the bottom of casing impels and pulls out.
3. The water lubricated screw air compressor of claim 1, wherein: mechanical seal includes quiet sealing ring and moves the sealing ring, quiet sealing ring with move the sealing ring and laminate mutually, move the sealing ring pass through the spring with the pivot is connected, just the pivot can drive move the sealing ring and rotate.
4. The water lubricated screw air compressor of claim 1, wherein: and a wear-resistant coating is arranged between the first shaft seal and the rotating shaft and covers the surface of the end part of the rotating shaft.
5. The water lubricated screw air compressor of claim 1, wherein: the rotor comprises a male rotor and a female rotor, and the male rotor and the female rotor are identical in structure and are connected in a meshed mode through racks.
6. The water lubricated screw air compressor of claim 1, wherein: the housing is made of stainless steel material.
7. The water lubricated screw air compressor of claim 1, wherein: the swivel is made of PEEK material.
8. The water-lubricated screw air compressor of claim 5, wherein: the rotor groove size ratio of the male rotor to the female rotor is 7: 5.
9. the water lubricated screw air compressor of claim 1, wherein: the surface of the shell is provided with a through hole.
10. The water lubricated screw air compressor of claim 2 wherein: and a gasket is arranged between the shell and the sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920902077.6U CN210686302U (en) | 2019-06-14 | 2019-06-14 | Water lubrication screw type air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920902077.6U CN210686302U (en) | 2019-06-14 | 2019-06-14 | Water lubrication screw type air compressor |
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| Publication Number | Publication Date |
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| CN210686302U true CN210686302U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920902077.6U Active CN210686302U (en) | 2019-06-14 | 2019-06-14 | Water lubrication screw type air compressor |
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| CN (1) | CN210686302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285054A (en) * | 2019-06-14 | 2019-09-27 | 泉州市华德机电设备有限公司 | A kind of water lubrication screw air compressor |
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2019
- 2019-06-14 CN CN201920902077.6U patent/CN210686302U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285054A (en) * | 2019-06-14 | 2019-09-27 | 泉州市华德机电设备有限公司 | A kind of water lubrication screw air compressor |
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