CN208416926U - A kind of self-balancing wet type lobe pump - Google Patents
A kind of self-balancing wet type lobe pump Download PDFInfo
- Publication number
- CN208416926U CN208416926U CN201820430232.4U CN201820430232U CN208416926U CN 208416926 U CN208416926 U CN 208416926U CN 201820430232 U CN201820430232 U CN 201820430232U CN 208416926 U CN208416926 U CN 208416926U
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- gear
- side plate
- rotor
- driven
- self
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- 238000007789 sealing Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- 238000005461 lubrication Methods 0.000 abstract description 19
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000001050 lubricating effect Effects 0.000 abstract 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
本实用新型公开一种自平衡湿式罗茨泵，属于罗茨泵技术领域，通过设置在齿轮箱上的第一进气口吸入含润滑水工质，润滑水进入齿轮空腔后，对齿轮进行润滑，随着工质被吸入转子空腔，部分润滑水被带入转子空腔，进而对转子进行冷却，由于润滑水是和工质一起被吸入的，因此润滑水的吸入量和转子的转速正相关，在高速转动时吸入的润滑水多，润滑冷却消耗的润滑水也多，实现了齿轮箱内润滑水的自平衡，并且结构紧凑。
The utility model discloses a self-balancing wet Roots pump, which belongs to the technical field of Roots pumps. A working medium containing lubricating water is sucked through a first air inlet arranged on a gear box. Lubrication, as the working medium is sucked into the rotor cavity, part of the lubricating water is brought into the rotor cavity, and then the rotor is cooled. Positive correlation, more lubricating water is sucked in during high-speed rotation, and more lubricating water is consumed by lubricating and cooling, which realizes the self-balancing of lubricating water in the gear box, and has a compact structure.
Description
Technical field
The utility model relates to Roots's pump technical field, specially a kind of self-balancing wet type lobe pump.
Background technique
Lobe pump is widely used in all trades and professions, it is a kind of two-spool compressor tool, and pump case is built-in, and there are two phase negative sides
To the lobed rotor of synchronous rotary, and between rotor, have slight gap between rotor and pump housing endophragm and be not in contact with each other, two rotors are by electricity
Machine passes through a pair of of synchromesh gear driving.The working principle of lobe pump is similar to Roots blower, due to the continuous rotation of rotor, quilt
Pumping body is drawn into the SPACE V between rotor and pump case from air inlet0It is interior, then be discharged through exhaust outlet.Due to V after air-breathing0Space is
Full closeding state, so not compressing and expanding in pump intracavity gas.But when rotor top turns over exhaust outlet edge, V0Space with
When exhaust outlet communicates, since exhaust side gas pressure intensity is higher, then some gas recoils to SPACE V0In, make gas pressure
Increase suddenly by force, when rotor continues to rotate, it is outer that gas is discharged pump.
Since rotor speed is very high, heat can be generated in conveying and compressed gas, the performance and reliability of pump are caused
Extreme influence.Heat caused by usually is by cooling fin outside the pump housing come radiating and cooling, but in a low voltage state, rotor
The heat of absorption is not easy to shed, and when the pressure difference of lobe pump is larger, volume cavity temperature will rapid increase, in addition just
The movement heat energy of normal moving component, makes temperature of rotor is excessively high to cause to thermally expand.So as to cause between rotor, between rotor and the pump housing between
Gap is too small and stuck, makes lobe pump cisco unity malfunction.The method generallyd use at present is dissipated in the pump housing and the setting of front cover position
Backing cools down lobe pump by air-cooled form, but this type of cooling cooling effect is undesirable.Or by
Cooling water channel is opened up on the pump housing to be cooled down, but its structure is complex, and processing is inconvenient.
On the other hand, it since gear intermeshes, there are mechanical friction, needs to be lubricated it.Generally use lubrication
Oil prevents the metal surface from directly contacting, and reduces frictional force, reduces abrasion.But the requirement of many applications of lobe pump is oil-free
Work, and working medium is it is often the case that aqueous, so can also be cooled down and be lubricated using water, that is, is so-called wet
Formula lobe pump in micro water injection pump, just will can eliminate the heat generated by compressed air, but its water is not easy to control,
It is easy to cause lobe pump can not work normally.
Utility model content
Aiming at the problems existing in the prior art, the utility model provides a kind of self-balancing wet type lobe pump, being capable of basis
The amount that water is lubricated in the working condition automatic adjustment gear-box of lobe pump, makes it not only can satisfy lubrication and cooling requirement, but also keep away
Having exempted from excessive lubrication water causes lobe pump that can not work.
The utility model is to be achieved through the following technical solutions:
A kind of self-balancing wet type lobe pump, including the pump housing, the first side plate, the second side plate, gear-box, active shafting assembly and
Driven shafting assembly；
First side plate and the second side plate are located at the two sides of the pump housing and the pump housing is tightly connected, and form rotor cavity,
Active shaft mounting hole and driven shaft mounting hole, gear-box and the sealing of the first side plate are respectively arranged on first side plate and the second side plate
Connection forms gear cavity；
The active shafting assembly includes driving shaft, driving gear and power rotor, and driving shaft is mounted on driving shaft installation
Kong Zhong, driving gear and power rotor are mounted on driving shaft, and power rotor is located in rotor cavity, and driving gear is located at gear
In cavity；
The driven shafting assembly includes driven shaft, driven gear and driven rotor, and driven shaft is mounted on driven shaft installation
Kong Zhong, driven gear and driven rotor are mounted on driven shaft, and driven rotor is located in rotor cavity, and driven gear is located at gear
In cavity；
It is provided with the first air inlet on the gear-box, is provided with the second air inlet on the pump housing, gear cavity and turns
Sub- cavity is connected to by the second air inlet, is provided with third air inlet on position corresponding with the second air inlet on the first side plate.
Optionally, the intracavity section of the pump housing is round rectangle, is provided with exhaust outlet on the pump housing, the exhaust outlet is located at
The opposite side of second air inlet.
Optionally, pedestal, the folder of the long side of the lower surface and rectangle pump housing inner cavity of the pedestal are provided on the pump housing
Angle is 55 °~75 °.
Optionally, the channel of second air inlet is L shape, and section is rectangle.
Optionally, it is provided with seal groove at second air inlet and air outlet, for installing sealing ring.
Optionally, the driving shaft is connected with the first side plate and the second side plate by bearing respectively, the driven shaft point
It is not connected with the first side plate and the second side plate by bearing, is provided with the first tune between the bearing and power rotor on driving shaft
Bearing set is provided with second adjustment axle sleeve between the bearing and driven rotor on driven shaft.
Optionally, one end of the driving shaft and driven shaft is each passed through the first side plate and protrudes into gear-box, driving gear
Carry out axially position by key and active axis connection, and by gear end cap and hold-down bolt, driven gear by expansion set with from
Moving axis connection, and locked by expansion set compressing member, round nut stop washer and gear round nut, driving gear and driven tooth
Wheel intermeshes in gear-box.
Optionally, the gear-box is hollow cylindrical, and an end face is provided with connecting flange, is connected by bolt and the pump housing
It connects, joint face is equipped with groove, for placing sealing ring.
Optionally, second side plate is circle, is provided with bearing chamber, for placing bearing, the second side plate is separate
The side of the pump housing is provided with bearing plate, and bearing plate and the second side plate are bolted.
Optionally, the connecting side of first side plate and the second side plate and the pump housing is provided with seal groove, the seal groove
For installing sealing ring.
Compared with prior art, the utility model has technical effect beneficial below:
The utility model discloses a kind of self-balancing wet type lobe pump, is sucked by the first air inlet being arranged on gear-box
The device of working medium containing lubrication is lubricated gear, after lubrication water enters gear cavity as working medium is inhaled into rotor cavity, part
Lubrication water is brought into rotor cavity, and then cools down to rotor, since lubrication water is inhaled into together with working medium, profit
The soakage of water skiing and the revolving speed of rotor are positively correlated, and the lubrication water sucked in high-speed rotation is more, the lubrication of lubrication consumption
Water is also more, realizes the self-balancing of lubrication water in gear-box, and compact-sized.
Further, the angle of the long side of the lower surface of pedestal and rectangle pump housing inner cavity is 55 °~75 °, reduces second
The height of air inlet and third air inlet avoids assembling excessive lubrication water in gear-box.
Further, the gap between rotor and side plate, realization side are adjusted by the length of adjustment axle sleeve on the inside of bearing
Just installation and debugging.
Detailed description of the invention
Fig. 1 is a kind of longitudinal sectional drawing of self-balancing wet type lobe pump provided by the utility model；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is a kind of schematic perspective view of self-balancing wet type lobe pump provided by the utility model；
Fig. 4 is the right view of Fig. 1；
Fig. 5 is a kind of pump body structure schematic diagram provided by the utility model.
In figure: 1. gear round nuts；2. round nut stop washer；3. expansion set compressing member；4. expansion set；5. driven gear；6.
Bearing plate；7. the first side plate；8. the pump housing；9. the second side plate；10. bearing plate；11. bearing；12. driven shaft；13. bolt；
14. second adjustment axle sleeve；15. driven rotor；16. driving shaft；17. key；18. power rotor；19. the first adjustment axle sleeve；20.
Bearing outside cylinder；21. key；22. driving gear；23. gear end cap；24. gear-box；25. hold-down bolt；26. spring washer；27. the
Three air inlets；28. exhaust outlet；29. the second air inlet；30. pump chamber.
Specific embodiment
The utility model is described in further detail below with reference to specific embodiment, described is to the utility model
Explanation rather than limit.
Embodiment one
As shown in Figure 1, a kind of self-balancing wet type lobe pump, including the pump housing 8, the first side plate 7, the second side plate 9, gear-box
24, active shafting assembly and driven shafting assembly；
First side plate 7 and the second side plate 9 are located at the two sides of the pump housing 8 and the pump housing 8 is tightly connected, and form rotor cavity,
Active shaft mounting hole and driven shaft mounting hole, gear-box 24 and the first side plate are respectively arranged on first side plate 7 and the second side plate 9
7 are tightly connected, and form gear cavity；
Active shafting assembly includes driving shaft 16, driving gear 22 and power rotor 18, and driving shaft 16 is mounted on driving shaft
In mounting hole, driving gear 22 and power rotor 18 are mounted on driving shaft 16, and power rotor 18 is located in rotor cavity, actively
Gear 22 is located in gear cavity；
Driven shafting assembly includes driven shaft 12, driven gear 5 and driven rotor 15, and driven shaft 12 is mounted on driven shaft peace
It fills in hole, driven gear 5 and driven rotor 15 are mounted on driven shaft 12, and driven rotor 15 is located in rotor cavity, driven tooth
Wheel 5 is located in gear cavity；
It is provided with the first air inlet on gear-box 24, is provided with the second air inlet 29 on the pump housing 8, gear cavity and turns
Sub- cavity is connected to by the second air inlet 29, be provided on the first side plate and corresponding position of the second air inlet 29 third into
Port 27.
The intracavity section of the pump housing 8 is round rectangle, is provided with exhaust outlet 28 on the pump housing 8, the exhaust outlet 28 be located at into
The opposite side of stomata.Pedestal is provided on the pump housing 8, the angle of the long side of 8 inner cavity of lower surface and the rectangle pump housing of the pedestal is 55 °
~75 °.The channel of second air inlet 29 is L shape, and section is rectangle, is provided with sealing at the second air inlet 29 and gas outlet
Slot, for installing sealing ring.
Driving shaft 16 is connected with the first side plate 7 and the second side plate 9 by bearing respectively, and the driven shaft 12 is respectively with
Side plate 7 and the second side plate 9 are connected by bearing, are provided with the first tune between the bearing and power rotor 18 on driving shaft 16
Bearing covers 19, is provided with second adjustment axle sleeve 14 between the bearing and driven rotor 15 on driven shaft 12.
One end of driving shaft 16 and driven shaft 12 is each passed through the first side plate 7 and protrudes into gear-box 24, and driving gear 22 is logical
It crosses key to connect with driving shaft 16, and axially position is carried out by gear end cap 23 and hold-down bolt 25, driven gear 5 passes through expansion set
4 connect with driven shaft 12, and are locked by expansion set compressing member 3, round nut stop washer 2 and gear round nut 1, actively
Gear 22 and driven gear 5 intermesh in gear-box 24.
Gear-box 24 is hollow cylindrical, and an end face is provided with connecting flange, is connect by bolt with the pump housing 8, joint face
It is equipped with groove, for placing sealing ring.Second side plate 9 is circle, is provided with bearing chamber, for placing bearing, second
Side plate 9 is provided with bearing plate 6 far from the side of the pump housing 8, and bearing plate 6 and the second side plate 9 are bolted.First side
The connecting side of plate 7 and the second side plate 9 and the pump housing 8 is provided with seal groove, and the seal groove is for installing sealing ring.
Embodiment two
Referring to Fig. 1 and Fig. 3, lobe pump described in the utility model includes the pump housing 8, power rotor 18, driven rotor 15, active
Axis 16, driven shaft 12, the first side plate 7, the second side plate 9, gear-box 24, driving gear 22 and driven gear 5.First side plate, 7 He
Second side plate 9 is bolted on 8 two sides of the pump housing respectively, and pump chamber 30 is sealed.Power rotor 18 and driven rotor 15
In in the pump chamber 30 at 8 center of the pump housing, driving shaft 16 is connect by key with power rotor 18, and driven shaft 12 passes through key and driven rotor
15 connections.Power rotor 18 driving shaft 16 drive under rotate, driven rotor 15 under the drive of driven shaft 12 with power rotor
18 cooperation rotations, change the volume in pump chamber 30, to realize the conveying to medium.
First side plate 7 is circle, bearing chamber is provided with, for placing bearing.It is opposite with the pump housing air inlet 29
Third air inlet 27 is offered at position, bearing plate 6 is connect by bolt with the first side plate 7, and it is axial fixed to carry out to bearing
Position.
Referring to Fig. 1 and Fig. 2, one end of the driving shaft 16 and the driven shaft 12 both passes through the first side plate 7 and protrudes into gear
In case 24, driving gear 22 is connect by key 21 with driving shaft 16, and carries out axial direction by gear end cap 23 and hold-down bolt 25
Positioning, driven gear 5 are connect by expansion set 4 with driven shaft 12, and pass through expansion set compressing member 3, round nut stop washer 2 and tooth
Wheel round nut 1 is locked, and driving gear 22 and driven gear 5 intermesh in gear-box 24.
The gear-box 24 is carnival hat shape, is connect by bolt with the pump housing 8, and joint face is equipped with groove, close for placing
Seal ensure that the lubrication water of internal aggregation does not leak.The first air inlet is also provided on gear-box 24, with lubrication water droplet
Working medium thus enter, lubrication water is gathered in the bottom of gear-box 24, and a part is rotated by driving gear 22 and taken to gear and nibble
At conjunction, driving gear 22 and driven gear 5 are lubricated, meanwhile, another part is with air inlet from 27 suction pump of third air inlet
In chamber 30, pump chamber 30 is cooled down.And when working medium flow changes, also accordingly sent out with the lubrication water that air inlet sucks
Changing, thus it is preferably cooling to pump chamber 30, realize the self-balancing of lubrication water in gear-box 24.
Referring to Fig. 1 and Fig. 4, second side plate 9 is circle, bearing chamber is provided with, for placing bearing.And driven shaft
Bearing plate 10 at bearing chamber is carnival hat shape, facilitates the installation of bolt 13.
Referring to Fig. 3 or Fig. 5, the whole pump housing 8 is in track type, and inner hollow forms track type pump chamber 30, with the first side
The two sides of plate 7 and the connection of the second side plate 9 are respectively equipped with runway connected in star, for placing sealing ring, to guarantee the close of pump chamber
Envelope.8 lateral surface of the pump housing is equipped with exhaust outlet 28, and the second air inlet 29 is oppositely arranged with exhaust outlet 28, and air inlet 29 is in the pump housing 8
It is upper to pass through L shape vertical channel, it is finally provided on the side being connected with the first side plate 7.Exhaust outlet 28 is circle, the second air inlet
Mouth 29 is in rectangle, is provided with groove around exhaust outlet 28 and air inlet 29, for placing sealing ring, is guaranteed and intake and exhaust pipeline
The sealing effect of connection.
8 bottom of the pump housing is equipped with bolt hole, the pedestal as entire lobe pump.The central axis and water of the entire pump housing 8
Horizontal line is at 55 °~75 ° angles, and pump chamber 30 is also with horizontal line at 58 ° of angles, so that air inlet is in than 22 bottom of driving gear
The slightly higher position in portion, reduces the aggregation of lubrication water in gear-box 24, to reduce the rotary resistance of driving gear 22, reduces
Power consumption, increases the service life of lobe pump.
The specific embodiment that the utility model is lifted is only the annotation to this utility model spirit, the utility model technology neck
The technical staff in domain can modify to the specific embodiment of description or similar method substitution, without departing from the utility model
Spirit.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820430232.4U CN208416926U (en) | 2018-03-28 | 2018-03-28 | A kind of self-balancing wet type lobe pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820430232.4U CN208416926U (en) | 2018-03-28 | 2018-03-28 | A kind of self-balancing wet type lobe pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208416926U true CN208416926U (en) | 2019-01-22 |
Family
ID=65117681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820430232.4U Expired - Fee Related CN208416926U (en) | 2018-03-28 | 2018-03-28 | A kind of self-balancing wet type lobe pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208416926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252908A (en) * | 2018-03-28 | 2018-07-06 | 西安交通大学 | A kind of self-balancing wet type lobe pump |
-
2018
- 2018-03-28 CN CN201820430232.4U patent/CN208416926U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252908A (en) * | 2018-03-28 | 2018-07-06 | 西安交通大学 | A kind of self-balancing wet type lobe pump |
| CN108252908B (en) * | 2018-03-28 | 2024-03-29 | 西安交通大学 | Self-balancing wet Roots pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20210328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |