CN219754810U - Roots blower with anti-leakage lubricating oil tank - Google Patents
Roots blower with anti-leakage lubricating oil tank Download PDFInfo
- Publication number
- CN219754810U CN219754810U CN202320745789.8U CN202320745789U CN219754810U CN 219754810 U CN219754810 U CN 219754810U CN 202320745789 U CN202320745789 U CN 202320745789U CN 219754810 U CN219754810 U CN 219754810U
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- Prior art keywords
- oil tank
- oil
- leakage
- hole
- wallboard
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 32
- 239000003921 oil Substances 0.000 claims abstract description 184
- 238000007789 sealing Methods 0.000 claims abstract description 69
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003595 mist Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Sealing Of Bearings (AREA)
Abstract
The utility model provides a Roots blower with a leakage-proof lubricating oil tank, which comprises a casing, a left wallboard, a right wallboard, a left oil tank and a right oil tank, wherein a driving shaft and a driven shaft are arranged in an internal working cavity of the casing, the left ends of the driving shaft and the driven shaft are respectively and rotatably connected with the left wallboard through bearings, the bearings are fixedly connected with the left wallboard through bearing blocks, and an oil baffle disc and a sealing seat are sequentially arranged on the right side of the bearings. The oil retainer ring is arranged on the inner side of the bottom plate of the left oil tank to block lubricating oil thrown up by the oil thrower, and meanwhile, oil mist generated by the increase of the temperature in the left oil tank is prevented from flowing downwards along the inner wall of the left oil tank, so that the oil seal is prevented from being directly influenced; the outside processing shoulder hole in left oil tank's axle stretch hole forms the locating bench, and installation oil blanket's position, degree of depth are effectively guaranteed like this, and the significantly reduced installation degree of difficulty reaches better sealed effect, prevents the leakage of lubricating oil.
Description
Technical Field
The utility model relates to the technical field of Roots blowers, in particular to a Roots blower with a leakage-proof lubricating oil tank.
Background
In the existing market, the Roots blower mostly adopts lubricating oil to lubricate and cool bearings and gears. Thus, an oil tank is needed to hold the lubricating oil, and then the lubricating oil is thrown up through an oil thrower to lubricate and cool the bearing or the gear. Rotation of the Roots blower is accomplished by a motor or other power device through the drive shaft of the Roots blower. Therefore, the oil tank is required to be provided with the shaft extending hole to extend the driving shaft, and therefore a problem arises that lubricating oil thrown by the oil thrower or lubricating oil thrown by the bearing leaks out of the Roots blower from a gap between the driving shaft and the shaft extending hole, and sealing is needed to seal the part, and the sealing is mostly labyrinth sealing or oil sealing. The original oil seal is installed by smashing the oil seal and the outer end face of the oil tank, the position and depth of the oil seal are uncontrollable, the fault tolerance is very low, and the level requirement on an installer is high. The oil seal is not correct (between an inner hole of the oil seal and the center line of the driving shaft, and between the outer circle of the oil seal and the shaft extension hole of the oil tank) easily occurs, so that oil leakage of the Roots blower is caused; and lubricating oil thrown up by the oil thrower or oil mist caused by the temperature rise in the oil tank can flow downwards along the inner wall of the oil tank, so that an oil seal is directly affected, and oil leakage of a Roots blower is easily caused.
Disclosure of Invention
Aiming at the technical problems that the mechanical seal position and depth of the traditional Roots blower are uncontrollable, the fault tolerance is very low and oil leakage exists in shaft extension holes, the utility model provides a Roots blower with a leakage-proof lubricating oil tank, which comprises a casing, a left wallboard, a right wallboard, a left oil tank and a right oil tank, wherein an oil retainer is arranged on the inner side of a bottom plate of the left oil tank to block lubricating oil thrown up by an oil thrower, and simultaneously, oil mist generated by the temperature rise in the left oil tank is blocked from flowing downwards along the inner wall of the left oil tank, so that the oil seal is prevented from being directly influenced; the outside processing shoulder hole in left oil tank's axle stretch hole forms the locating bench, and installation oil blanket's position, degree of depth are effectively guaranteed like this, and the significantly reduced installation degree of difficulty reaches better sealed effect, prevents the leakage of lubricating oil.
The technical scheme includes that the Roots blower with the anti-leakage lubricating oil tank comprises a casing, a left wallboard, a right wallboard, a left oil tank and a right oil tank, wherein a driving shaft and a driven shaft are arranged in an inner working cavity of the casing, the left ends of the driving shaft and the driven shaft are respectively and rotatably connected with the left wallboard through bearings, the bearings are fixedly connected with the left wallboard through bearing seats, an oil baffle disc and a sealing seat are sequentially arranged on the right side of the bearings, the sealing seat is fixedly connected with the left wallboard, a sealing bush is arranged in the sealing seat, a plurality of sealing rings are arranged between the sealing bush and the sealing seat, bush sealing rings are respectively arranged between the sealing bush and the driving shaft and the driven shaft, a locking sleeve is arranged at the left end of the driven shaft, an oil throwing disc is arranged at the left end of the locking sleeve, and the oil throwing disc is fixedly connected with the locking sleeve;
the bottom plate of left oil tank is equipped with the axle and stretches the hole, the outside in axle stretching the hole is equipped with the locating station, the inside of locating station is equipped with toper locating hole and oil blanket locating hole, the toper locating hole is located the outside in oil blanket locating hole, the inboard oil retainer in axle stretching the hole, oil retainer and the coaxial heart in axle stretching the hole, the outer terminal surface of the bottom plate of left oil tank is equipped with the strengthening rib, the middle part at the both ends of the curb plate of left oil tank is equipped with the locating hole, the inside in locating hole is equipped with the locating pin, left oil tank is connected the location through locating pin and left wallboard, left oil tank passes through oil tank bolt and left wallboard fixed connection.
Preferably, a sealing shaft sleeve and an oil seal are arranged between the driving shaft and the shaft extension hole, and a shaft sleeve sealing ring is arranged between the sealing shaft sleeve and the driving shaft.
Preferably, the left oil tank is made of aluminum alloy.
Preferably, an included angle is arranged between the bottom plate and the side plate of the left oil tank, and the size of the included angle is 93 degrees.
Preferably, the reinforcing ribs are zigzag in shape.
Preferably, the bearing seat is provided with a bearing seat oil groove.
Preferably, the outer ring of the oil baffle disc is provided with an oil baffle boss, the left side of the sealing seat is provided with an oil return boss, and the outer ring side of the oil return boss is provided with a sealing seat oil return groove.
Preferably, the middle part of the sealing seat is provided with a sealing seat exhaust hole, the left wallboard is provided with a wallboard exhaust ring groove, and the wallboard exhaust ring groove is communicated with the sealing seat exhaust hole.
Preferably, a bearing gasket is provided between the bearing and the windage tray.
The oil retainer has the beneficial effects that the oil retainer is arranged on the inner side of the bottom plate of the left oil tank, so that lubricating oil thrown up by the oil thrower is prevented, meanwhile, oil mist generated by the increase of the internal temperature of the left oil tank is prevented from flowing downwards along the inner wall of the left oil tank, and the direct influence on an oil seal is avoided. The stepped hole is processed on the outer side of the shaft extension hole of the left oil tank to form a positioning table, so that the position and depth of the oil seal are effectively ensured, and the installation difficulty is greatly reduced; meanwhile, due to the limitation of the positioning table, the coaxiality and the relative position of the center line of the oil seal, the center line of the driving shaft and the center line of the shaft extension hole can be well ensured, so that the inner hole of the oil seal is better contacted with the outer circle of the sealing shaft sleeve and the outer circle of the oil seal is better contacted with the inner surface of the shaft extension hole, the better sealing effect is achieved, and the leakage of lubricating oil is prevented.
Drawings
FIG. 1 is a schematic view of a Roots blower with a leak-proof lubrication tank according to the present utility model;
fig. 2 is a front view of a left oil tank (leak-proof lubricating oil tank);
FIG. 3 is a cross-sectional view of FIG. 2;
fig. 4 is a rear view of the left oil tank (leak-proof lubricating oil tank);
fig. 5 is a cross-sectional view of fig. 4.
The symbols in the drawings illustrate:
1. a left wallboard; 101. wall plate exhaust ring groove; 2. a left oil tank; 201. a shaft extension hole; 202. positioning holes; 203. reinforcing ribs; 204. a positioning table; 2041. conical positioning holes; 2042. an oil seal positioning hole; 205. oil slinger; 3. a driving shaft; 4. a driven shaft; 5. a bearing; 6. a bearing seat; 601. a bearing seat oil groove; 7. a windage tray; 701. an oil baffle boss; 8, a sealing seat; 801. an oil return boss; 802. an oil return groove of the sealing seat; 803. sealing the exhaust hole of the seat; 9. a seal bushing; 10. a seal ring; 11. a bushing seal ring; 12. a locking sleeve; 13. an oil slinger; 14. a positioning pin; 15. an oil tank bolt; 16. sealing the shaft sleeve; 17. an oil seal; 18. a shaft sleeve sealing ring; 19. bearing pads.
Detailed Description
The utility model is further described below with reference to examples.
Fig. 1-5 show an embodiment of a Roots blower with a leakage-proof lubricating oil tank, which comprises a casing, a left wallboard 1, a right wallboard, a left oil tank 2 and a right oil tank, wherein a driving shaft 3 and a driven shaft 4 are arranged in an internal working cavity of the casing, the driving shaft 3 and the driven shaft 4 are respectively provided with a driving impeller and a driven impeller, the driving shaft 3 and the driven shaft 4 are in transmission connection through meshing of a driving gear and a driven gear, the driving gear and the driven gear are arranged in the right oil tank, and the right oil tank is a closed oil tank.
The left end of driving shaft 3 and driven shaft 4 passes through bearing 5 and 1 swivelling joint of left wallboard respectively, and bearing 5 passes through 6 fixed connection of bearing frame with left wallboard 1, and the right side of bearing 5 is equipped with oil baffle disc 7 and sealing seat 8 in proper order, and sealing seat 8 and 1 fixed connection of left wallboard, sealing seat 8 internally mounted have sealing liner 9, are equipped with a plurality of sealing rings 10 between sealing liner 9 and the sealing seat 8, are equipped with bush sealing washer 11 respectively between sealing liner 9 and driving shaft 3, the driven shaft 4, and bush sealing washer 11 is O type sealing washer.
The left end of driven shaft 4 still is equipped with lock sleeve 12, and the left end of lock sleeve 12 is equipped with oil slinger 13, oil slinger 13 and lock sleeve 12 fixed connection.
The bottom plate of left oil tank 2 is last to be equipped with the axle and stretch the hole 201, the outside in axle and stretch the hole 201 is equipped with locating bench 204, the inside of locating bench 204 is equipped with toper locating hole 2041 and oil blanket locating hole 2042, toper locating hole 2041 is located the outside in oil blanket locating hole 2042, the inboard oil retainer 205 in axle and stretch the hole 201, oil retainer 205 and the coaxial heart in axle stretch the hole 201, the outer terminal surface of the bottom plate of left oil tank 2 is equipped with strengthening rib 203, the middle part at the both ends of the curb plate of left oil tank 2 is equipped with locating hole 202, the inside in locating hole 202 is equipped with locating pin 14, left oil tank 2 is connected the location through locating pin 14 and left wallboard 1, left oil tank 2 passes through oil tank bolt 15 and left wallboard 1 fixed connection, guarantee the axiality of the axle and the driving shaft 3 central line of axle stretch the hole 201 of left oil tank 2.
A sealing shaft sleeve 16 and an oil seal 17 are arranged between the driving shaft 3 and the shaft extension hole 201, a shaft sleeve sealing ring 18 is arranged between the sealing shaft sleeve 16 and the driving shaft 3, and the shaft sleeve sealing ring 18 is an O-shaped sealing ring.
The inside of the bottom plate of the left oil tank 2 is provided with the oil retainer 205, which blocks lubricating oil thrown up by the oil thrower 13, and simultaneously blocks oil mist generated by the temperature rise inside the left oil tank 2 from flowing down along the inner wall of the left oil tank 2, so that the oil seal 17 is prevented from being directly influenced. The stepped hole is processed on the outer side of the shaft extension hole 201 of the left oil tank 2 to form a positioning table 204, so that the position and depth of the oil seal are effectively ensured, and the installation difficulty is greatly reduced; meanwhile, due to the limitation of the positioning table, the coaxiality and the relative position of the center line of the oil seal, the center line of the driving shaft and the center line of the shaft extension hole can be well ensured, so that the inner hole of the oil seal is better contacted with the outer circle of the sealing shaft sleeve and the outer circle of the oil seal is better contacted with the inner surface of the shaft extension hole, the better sealing effect is achieved, and the leakage of lubricating oil is prevented.
In a specific embodiment, the left oil tank 2 is made of aluminum alloy, and is cast, modified to strengthen the strength of the oil tank, solution treated to stabilize the state of the oil tank casting, and then fully artificially aged to improve the strength, remove the internal stress and avoid later processing deformation or use deformation. The oil tank is made of aluminum alloy, so that the oil tank can exchange heat with the outside better, and the temperature of lubricating oil is reduced. An included angle A is arranged between the bottom plate and the side plate of the left oil tank 2, the size of the included angle A is 93 degrees, and casting drawing of the oil tank is facilitated.
In a specific embodiment, the reinforcing ribs 203 are in a zigzag shape, and the outer end surface of the left oil tank 2 is provided with the Z-shaped reinforcing ribs 203, so that the strength of the left oil tank 2 is increased, the deformation of the left oil tank 2 is reduced, the heat dissipation area is increased, and the oil temperature is further reduced.
In a specific embodiment, a bearing seat oil groove 601 is arranged on a bearing seat 6, the bearing seat oil groove 601 plays a role in oil inlet and oil return of a bearing 5, an outer ring of an oil baffle disc 7 is provided with an oil baffle boss 701, the left side of a sealing seat 8 is provided with an oil return boss 801, the outer ring side of the oil return boss 801 is provided with a sealing seat oil return groove 802, the sealing seat oil return groove 802 plays a role in oil return, the middle part of the sealing seat 8 is provided with a sealing seat exhaust hole 803, the sealing seat exhaust hole 803 is located above the sealing seat exhaust hole 803, a wallboard exhaust ring groove 101 is arranged on a left wallboard 1, and the wallboard exhaust ring groove 101 is communicated with the sealing seat exhaust hole 803 to form an exhaust channel.
The left oil tank 2 and the left wallboard 1 are fixed through an oil tank bolt 15 and positioned through a positioning pin 14; the driving shaft 3 extends out of the shaft extending hole 201 and is connected with driving equipment to finish power transmission; then, the oil seal 17 is arranged at the shaft extension hole 201 of the left oil tank, and is positioned by the positioning table 204, so that a good sealing effect of the oil seal is ensured; then installing a sealing shaft sleeve 16, wherein an inner hole of the sealing shaft sleeve is provided with a groove for installing an O-shaped ring to form a seal, so that lubricating oil is prevented from leaking between the outer circle of the driving shaft 3 and the inner hole of the sealing shaft sleeve 16; the outer circle of the sealing shaft sleeve 16 is well contacted with the inner circle of the oil seal 17, so that the sealing effect is achieved; the oil retainer 205 in the left oil tank prevents the oil seal 17 from being impacted by the oil, so that the oil is sealed in the left oil tank 2.
In one embodiment, a bearing gasket 19 is arranged between the bearing 5 and the oil baffle disc 7, and the bearing gasket 19 facilitates adjustment of the installation depth of the bearing 5.
However, the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the utility model are intended to fall within the scope of the claims.
Claims (9)
1. The Roots blower with the anti-leakage lubricating oil tank comprises a casing, a left wallboard, a right wallboard, a left oil tank and a right oil tank, wherein a driving shaft and a driven shaft are arranged in an internal working cavity of the casing;
the oil seal positioning device is characterized in that an axle extending hole is formed in a bottom plate of the left oil tank, a positioning table is arranged on the outer side of the axle extending hole, a conical positioning hole and an oil seal positioning hole are formed in the positioning table, the conical positioning hole is located on the outer side of the oil seal positioning hole, an oil retainer ring is arranged on the inner side of the axle extending hole, the oil retainer ring is coaxial with the axle extending hole, reinforcing ribs are arranged on the outer end face of the bottom plate of the left oil tank, positioning holes are formed in the middle of two ends of a side plate of the left oil tank, positioning pins are arranged in the positioning holes, the left oil tank is connected with a left wallboard through the positioning pins, and the left oil tank is fixedly connected with the left wallboard through an oil tank bolt.
2. The Roots blower with the leakage-proof lubricating oil tank as claimed in claim 1, wherein a sealing shaft sleeve and an oil seal are arranged between the driving shaft and the shaft extension hole, and a shaft sleeve sealing ring is arranged between the sealing shaft sleeve and the driving shaft.
3. The Roots blower with a leakage-proof lubrication oil tank as claimed in claim 1, wherein the left oil tank is made of aluminum alloy.
4. A roots blower with a leakage-proof lubricating oil tank according to claim 3, wherein an included angle is arranged between the bottom plate and the side plate of the left oil tank, and the included angle is 93 degrees.
5. The roots blower with a leakage prevention lubricating oil tank according to claim 4, wherein the reinforcing ribs are zigzag shaped.
6. The Roots blower with the leakage-preventing lubricating oil tank as claimed in claim 1, wherein the bearing seat is provided with a bearing seat oil groove.
7. The Roots blower with the leakage-proof lubricating oil tank according to claim 1, wherein an outer ring of the oil baffle disc is provided with an oil baffle boss, the left side of the sealing seat is provided with an oil return boss, and the outer ring side of the oil return boss is provided with a sealing seat oil return groove.
8. The Roots blower with the leakage-proof lubricating oil tank as claimed in claim 1, wherein the middle part of the sealing seat is provided with a sealing seat exhaust hole, the left wallboard is provided with a wallboard exhaust ring groove, and the wallboard exhaust ring groove is communicated with the sealing seat exhaust hole.
9. The roots blower with a leakage-proof lubrication oil tank of claim 1, wherein a bearing spacer is provided between the bearing and the windage tray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320745789.8U CN219754810U (en) | 2023-03-31 | 2023-03-31 | Roots blower with anti-leakage lubricating oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320745789.8U CN219754810U (en) | 2023-03-31 | 2023-03-31 | Roots blower with anti-leakage lubricating oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219754810U true CN219754810U (en) | 2023-09-26 |
Family
ID=88072001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320745789.8U Active CN219754810U (en) | 2023-03-31 | 2023-03-31 | Roots blower with anti-leakage lubricating oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219754810U (en) |
-
2023
- 2023-03-31 CN CN202320745789.8U patent/CN219754810U/en active Active
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