CN220850108U - Improved shaft sleeve of corrosion-resistant water ring vacuum pump - Google Patents
Improved shaft sleeve of corrosion-resistant water ring vacuum pump Download PDFInfo
- Publication number
- CN220850108U CN220850108U CN202321713125.XU CN202321713125U CN220850108U CN 220850108 U CN220850108 U CN 220850108U CN 202321713125 U CN202321713125 U CN 202321713125U CN 220850108 U CN220850108 U CN 220850108U
- Authority
- CN
- China
- Prior art keywords
- shaft section
- mechanical seal
- ring
- vacuum pump
- resistant water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 230000007797 corrosion Effects 0.000 title claims abstract description 15
- 238000005260 corrosion Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model is suitable for the technical field of water ring vacuum pumps, and in particular relates to an improved shaft sleeve of a corrosion-resistant water ring vacuum pump, which comprises a first shaft section, a second shaft section, a third shaft section and a through hole, wherein the outer side of the first shaft section is connected with an impeller, a mechanical seal stationary ring is arranged on the outer side of the second shaft section, and a mechanical seal movable ring is arranged on the outer side of the third shaft section; the improved shaft sleeve can be directly in interference fit with the impeller, an O-shaped ring or a special material sealing piece is omitted, the sealing effect can be achieved, the cost is saved, and the assembly is more convenient; the shaft sleeve is made of tetrafluoro material, so that the quality is lighter.
Description
Technical Field
The utility model is suitable for the technical field of water ring vacuum pumps, and particularly relates to an improved shaft sleeve of a corrosion-resistant water ring vacuum pump.
Background
The shaft sleeve is a mechanical part, is commonly used for reducing friction and abrasion between a shaft and a mechanical part, is generally made of metal or plastic, has wear resistance, corrosion resistance, heat resistance and high pressure resistance, and is widely applied to various mechanical devices such as machine tools, vehicles, aerospace devices and the like in the industrial and manufacturing fields.
At present, most of sealing modes between a pump body and an impeller shaft of a water ring vacuum pump in the market are O-shaped ring sealing or special material sealing parts sealing, and the prior art has the following technical defects:
The O-shaped ring is extremely easy to damage in the disassembly and assembly process, the external material of the sealing ring is made of rubber, the O-shaped ring is extremely easy to corrode under the corrosion of an acidic medium, and the sealing piece made of a special material with very high manufacturing cost is easy to damage and high in maintenance cost.
Disclosure of utility model
Aiming at the defects of the prior art, the improved shaft sleeve of the corrosion-resistant water ring vacuum pump is developed, and the improved shaft sleeve can be directly in interference fit with the impeller, so that an O-shaped ring or a sealing piece made of special materials is omitted, the sealing effect can be achieved, the cost is saved, and the assembly is more convenient; the shaft sleeve is made of tetrafluoro material, so that the quality is lighter.
The technical scheme for solving the technical problems is as follows: the utility model provides an improvement axle sleeve of corrosion-resistant water ring vacuum pump, includes first axle segment, second axle segment, third axle segment and through-hole, its characterized in that: the impeller is connected to the first shaft section outside, and the mechanical seal stationary ring is set up in the second shaft section outside, and the mechanical seal movable ring is set up in the third shaft section outside.
As an optimization, the improved shaft sleeve of the corrosion-resistant water ring vacuum pump is characterized in that: the first shaft section is in threaded interference connection with the impeller.
Preferably, the first shaft section has a diameter of 60mm to 63mm, preferably 60mm, 61.5mm or 63mm.
Preferably, the diameter of the second shaft section is 56mm-58mm, preferably 56mm, 57mm or 58mm.
Preferably, the diameter of the third shaft section is 59mm-61mm, preferably 59mm, 60mm or 61mm.
And as optimization, a baffle ring is arranged on the outer side of the mechanical seal static ring.
Compared with the prior art, the utility model has the following beneficial effects:
According to the utility model, the first shaft section, the second shaft section and the third shaft section are arranged and can be respectively matched with the impeller, the mechanical seal stationary ring and the mechanical seal movable ring, so that a seal end face can be formed in the rotation process, and no liquid can infiltrate into the structure in the movement process; the improved shaft sleeve can be directly in interference fit with the impeller, an O-shaped ring or a special material sealing piece is omitted, the sealing effect can be achieved, the cost is saved, and the assembly is more convenient; the shaft sleeve is made of tetrafluoro material, so that the quality is lighter.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model.
FIG. 2 is a schematic view of an improved bushing structure according to the present utility model.
1, A first shaft section; 2. a second shaft section; 3. a third shaft section; 4. a through hole; 5. a thread; 6. an impeller; 7. a mechanical seal stationary ring; 8. a mechanical seal moving ring; 9. a pump body; 10. an impeller shaft; 11. bolts 12, baffle rings.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings.
Example 1
As shown in fig. 1-2, the improved shaft sleeve of the corrosion-resistant water ring vacuum pump can be respectively matched with the impeller 6, the mechanical seal stationary ring 7 and the mechanical seal movable ring 8 by arranging the first shaft section 1, the second shaft section 2 and the third shaft section 3, can form a sealing end surface in the rotating process, and does not have liquid permeated into the structure in the moving process.
Through setting up first axle section 1 and impeller 6 screw thread 5 interference connection, can avoid the liquid infiltration to the through-hole 4 in, avoid inner structure's meeting water damage.
By providing the first shaft section 1 with a diameter of 60mm-63mm, preferably 60mm, 61.5mm or 63mm, it is possible to provide the thread 5 on the outside, thereby providing a mating connection.
By setting the diameter of the second shaft section 2 to be 56mm-58mm, preferably 56mm, 57mm or 58mm, gaps can be arranged between the second shaft section 2 and the inner holes of the mechanical seal stationary ring 7, and outside liquid flows into the sealing end face between the mechanical seal stationary ring 7 and the mechanical seal movable ring 8 to play roles of heat dissipation and lubrication.
Through setting up third shaft section 3 diameter and be 59mm-61mm, the preferred can be 59mm, 60mm or 61mm, can make third shaft section 3 and mechanical seal movable ring 8 interference fit connect, impeller 6 axle can drive mechanical seal movable ring 8 rotation, forms sealed terminal surface with mechanical seal stationary ring 7, plays whole sealed effect.
By arranging the baffle ring 12, the mechanical seal stationary ring 7 can be fixed on the pump body 9 through the bolts 11, and the gap between the second shaft section 2 and the mechanical seal stationary ring 7 ensures that the mechanical seal stationary ring 7 cannot rotate, so that a sealing end face is formed with the mechanical seal movable ring 8, and a sealing effect is achieved.
During operation, the impeller shaft 10 is driven to rotate inside the pump body 9, the impeller shaft 10 is connected with the impeller 6 to rotate on the outer side, an improvement shaft sleeve is sleeved on the impeller shaft 10, a first shaft section 1 of the improvement shaft sleeve is in interference fit with the impeller 6 through threads 5, a second shaft section 2 is matched with the mechanical seal stationary ring 7, a gap is arranged in the middle of the improvement shaft sleeve, a third shaft section 3 is connected with the inner ring of the mechanical seal movable ring 8 through interference fit, the mechanical seal stationary ring 7 is fixed on the pump body 9 through bolts 11, the mechanical seal stationary ring 7 is kept stationary in the process of driving the impeller shaft 10 to rotate, the mechanical seal movable ring 8 is nested in the impeller shaft 10 to rotate, and the mechanical seal movable ring 8 and the mechanical seal stationary ring 7 form a sealing surface through friction, so that the integral sealing effect is achieved.
The description of the orientation or relative positional relationship of the structures in the present utility model, such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the structures referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Claims (5)
1. The utility model provides an improvement axle sleeve of corrosion-resistant water ring vacuum pump, includes first axle segment (1), second axle segment (2), third axle segment (3) and through-hole (4), its characterized in that: the outer side of the first shaft section (1) is connected with an impeller (6), the outer side of the second shaft section (2) is provided with a mechanical seal stationary ring (7), and the outer side of the third shaft section (3) is provided with a mechanical seal movable ring (8); the first shaft section (1) and the impeller (6) are in interference connection with each other through threads (5).
2. The improved bushing for a corrosion resistant water ring vacuum pump of claim 1, wherein: the diameter of the first shaft section (1) is 60mm-63mm.
3. The improved bushing for a corrosion resistant water ring vacuum pump of claim 2, wherein: the diameter of the second shaft section (2) is 56mm-58mm.
4. An improved bushing for a corrosion resistant water ring vacuum pump as recited in claim 3, wherein: the diameter of the third shaft section (3) is 59mm-61mm.
5. The improved bushing for a corrosion resistant water ring vacuum pump of claim 4, wherein: the outside of the mechanical seal stationary ring (7) is provided with a baffle ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321713125.XU CN220850108U (en) | 2023-07-03 | 2023-07-03 | Improved shaft sleeve of corrosion-resistant water ring vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321713125.XU CN220850108U (en) | 2023-07-03 | 2023-07-03 | Improved shaft sleeve of corrosion-resistant water ring vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850108U true CN220850108U (en) | 2024-04-26 |
Family
ID=90742591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321713125.XU Active CN220850108U (en) | 2023-07-03 | 2023-07-03 | Improved shaft sleeve of corrosion-resistant water ring vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850108U (en) |
-
2023
- 2023-07-03 CN CN202321713125.XU patent/CN220850108U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |