CN216617985U - Oil seal assembly and water feed pump - Google Patents
Oil seal assembly and water feed pump Download PDFInfo
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- CN216617985U CN216617985U CN202220039265.2U CN202220039265U CN216617985U CN 216617985 U CN216617985 U CN 216617985U CN 202220039265 U CN202220039265 U CN 202220039265U CN 216617985 U CN216617985 U CN 216617985U
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- seal assembly
- main shaft
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Abstract
The application discloses oil blanket subassembly and feed pump belongs to oil blanket technical field. The oil seal assembly is used for being sleeved on a main shaft (400) of a water feeding pump and comprises an oil retainer (100), the oil retainer (100) is provided with a first inner circumferential surface (101) and a first outer circumferential surface (102), the oil retainer (100) is provided with an oil guide channel (110), the oil guide channel (110) is provided with an oil inlet and an oil outlet, the oil inlet is formed in the first inner circumferential surface (101), the oil outlet is formed in the first outer circumferential surface (102), and the oil guide channel (110) extends along the direction departing from the main shaft (400). The scheme can solve the problem that when oil is sprayed to an oil outlet of the oil slinger at a certain speed along the direction of a main shaft of the water feeding pump, the oil is easy to leak from a gap between the oil slinger and the oil slinger.
Description
Technical Field
The application belongs to the technical field of oil seals, and particularly relates to an oil seal assembly and a water feed pump.
Background
A feed water pump is one of important devices in a power generation system, and is used to supply water to a boiler to ensure safe operation of the boiler.
In order to solve the problems of oil dripping and oil leakage at the bearings at the two ends of the water-feeding pump, the oil slinger and the oil retainer are matched to form an oil seal assembly and are sleeved on a main shaft of the water-feeding pump, so that the phenomena of oil dripping and oil leakage at the bearings at the two ends of the water-feeding pump are avoided. However, since the oil slinger and the slinger have a gap therebetween after being engaged with each other, when oil is splashed to the oil outlet of the slinger at a constant speed in the direction of the main shaft of the feed water pump, the oil is liable to leak from the gap.
SUMMERY OF THE UTILITY MODEL
The purpose of the embodiment of the application is to provide an oil seal assembly and a water feed pump, can solve the problem that when oil splashes to an oil outlet of an oil slinger at a certain speed along the direction of a main shaft of the water feed pump, the oil is easy to leak from a gap between the oil slinger and the oil slinger.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides an oil seal assembly, which is used for sleeving a main shaft of a water feeding pump, the oil seal assembly includes an oil retainer ring, the oil retainer ring has a first inner circumferential surface and a first outer circumferential surface, the oil retainer ring is provided with an oil guide channel, the oil guide channel has an oil inlet and an oil outlet, the oil inlet is arranged on the first inner circumferential surface, the oil outlet is arranged on the first outer circumferential surface, and the oil guide channel extends along a direction deviating from the main shaft.
In a second aspect, an embodiment of the present application provides a water feed pump, which includes a main shaft and an oil seal assembly, wherein the main shaft is sleeved with the oil seal assembly.
In this application embodiment, when oil splashes at a certain speed along the direction of feed pump main shaft, because the oil-out of leading the oil passageway sets up in the first peripheral face of oil slinger, consequently oil can't be sprayed in leading the oil passageway, also can't get into the clearance between oil slinger and the oil slinger from the oil inlet of oil slinger, thereby can avoid leading to oil to reveal from the clearance between oil slinger and the oil slinger because of oil sprays in leading the oil passageway, be favorable to avoiding bearing department oil drip at feed pump both ends, the phenomenon of oil leak takes place. In addition, because the extending direction of the oil guide channel is away from the main shaft, the oil in the oil guide channel can rapidly flow out of the oil guide channel under the action of gravity, so that the oil can be prevented from being accumulated in the oil guide channel.
Drawings
Fig. 1 is a schematic structural view illustrating an oil seal assembly sleeved on a main shaft according to an embodiment of the present disclosure;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is an enlarged view at B of FIG. 1;
FIG. 4 is an enlarged view at C of FIG. 1;
FIG. 5 is an enlarged view taken at D in FIG. 1;
FIG. 6 is a schematic structural view of an oil seal assembly sleeved on a main shaft according to another embodiment of the present disclosure;
FIG. 7 is an enlarged view at E in FIG. 6;
fig. 8 is an enlarged view at F in fig. 6.
Description of reference numerals:
100-oil retainer, 101-first inner circumferential surface, 102-first outer circumferential surface, 103-inner side surface, 104-outer side surface, 110-oil guide channel and 120-first groove;
200-oil slinger, 201-second inner peripheral surface, 202-second outer peripheral surface, 210-first flanging part, 211-first annular bulge, 211 a-first surface, 211 b-second surface, 220-second flanging part, 221-second annular bulge and 230-second groove;
300-sealing ring;
400-main shaft;
500-fastener.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The oil seal assembly and the water feed pump provided by the embodiment of the present application are described in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
As shown in fig. 1 to 8, an embodiment of the present application provides an oil seal assembly for being sleeved on a main shaft 400 of a water supply pump, the oil seal assembly includes an oil slinger 100, the oil slinger 100 has a first inner circumferential surface 101 and a first outer circumferential surface 102, the oil slinger 100 is provided with an oil guide channel 110, the oil guide channel 110 has an oil inlet and an oil outlet, the oil inlet is disposed on the first inner circumferential surface 101, the oil outlet is disposed on the first outer circumferential surface 102, and the oil guide channel 110 extends in a direction away from the main shaft 400. The oil guiding channel 110 may be a linear channel or a curved channel, which is not limited in the embodiments of the present application.
In the embodiment of the present application, when oil is splashed at a certain speed along the direction of the main shaft 400 of the water-feeding pump, because the oil outlet of the oil guiding channel 110 is disposed on the first outer circumferential surface 102 of the oil slinger 100, the oil cannot be sprayed into the oil guiding channel 110, and thus the oil cannot enter the gap between the oil slinger 200 and the oil slinger 100 from the oil inlet of the oil slinger 100, so that the oil leakage from the gap between the oil slinger 200 and the oil slinger 100 due to the oil sprayed into the oil guiding channel 110 can be avoided, and the oil dripping and oil leaking phenomena at the bearings at the two ends of the water-feeding pump can be avoided. Furthermore, since the extending direction of the oil guide passage 110 is away from the main shaft 400, the oil in the oil guide passage 110 can rapidly flow out from the oil guide passage 110 by gravity, so that the oil can be prevented from being accumulated in the oil guide passage 110.
In one embodiment, the oil seal assembly further includes an oil slinger 200, the oil slinger 100 is sleeved on the oil slinger 200, and the oil slinger 200 can be fixed on the main shaft 400 by a fastener 500. Since the oil slinger 200 and the slinger 100 are fitted to each other with a gap therebetween, when oil is splashed at a constant speed in the direction of the main shaft 400 of the water feed pump, the oil is easily leaked from the gap. Therefore, in another embodiment, the oil slinger 200 has a second outer peripheral surface 202, the second outer peripheral surface 202 is provided with a first burring portion 210, the first burring portion 210 extends in a direction away from the main shaft 400, and the first burring portion 210 covers a gap between the oil slinger 200 and the oil slinger 100 in the direction in which the main shaft 400 extends. In this embodiment, since the first burring part 210 can cover the gap between the oil slinger 200 and the oil slinger 100, when oil is splashed at a certain speed in the direction of the main shaft 400 of the water feed pump, the first burring part 210 can prevent oil from leaking from the gap. In addition, when the oil is sprayed onto the first burring 210, the speed of the oil is reduced by the collision, and the moving direction of the oil is changed at the first burring 210 and finally flows in the direction of gravity, whereby the oil can be prevented from leaking.
In an alternative embodiment, the slinger 100 has an outer side face 104, the outer side face 104 intersects the second outer peripheral face 202, and the outer side face 104 is opposed to the first burring portion 210. In this embodiment, since the first burring part 210 is located at the outside, when oil is splashed at a certain speed in the direction of the main shaft 400 of the water feed pump, the oil first enters from the gap between the slinger 200 and the slinger 100 and then is stopped by the first burring part 210. That is, when the first burring part 210 blocks the oil, the oil has entered the above-described gap, however, the oil entered the gap easily leaks from between the first burring part 210 and the outer side surface 104. It can be seen that the above-described manner has a poor effect of blocking oil leakage. Therefore, in another alternative embodiment, the slinger 100 has the inner side surface 103, the inner side surface 103 intersects the second outer peripheral surface 202, and the inner side surface 103 is opposed to the first burring section 210. In this embodiment, since the first burring part 210 is opposed to the inner side surface 103, when oil is splashed at a certain speed in the direction of the main shaft 400 of the water feed pump, the first burring part 210 can directly block the oil from entering the gap between the slinger 200 and the slinger 100, and therefore, the oil is not easily leaked from the gap. Therefore, the effect of blocking oil leakage is better.
In one embodiment, the first cuff portion 210 is in contact with the inner side surface 103. That is, the slinger 200 and the slinger 100 are in contact with each other, and when the slinger 200 and the slinger 100 relatively rotate, friction exists therebetween, and the slinger 200 and the slinger 100 are easily damaged by the friction. Thus, in another embodiment, the first cuff portion 210 is spaced from the inner side surface 103. In this embodiment, since the slinger 200 is not in contact with the inner side surface 103 of the slinger 100, no friction is generated therebetween, which is advantageous for protecting the oil seal assembly from damage. Alternatively, the spacing between the first cuff portion 210 and the medial side 103 may be 0.5 mm.
In order to avoid the generation of a large friction, which may occur if the first burring portion 210 comes into contact with the slinger 100, in an alternative embodiment, the first burring portion 210 has a plurality of first annular protrusions 211, the plurality of first annular protrusions 211 are spaced apart in a radial direction of the slinger 200, and the plurality of first annular protrusions 211 face the slinger 100. When the first burring portion 210 comes into contact with the slinger 100, the contact area between the two is small due to the presence of the first annular protrusion 211, and therefore, no large friction is generated between the two, which is beneficial to prolonging the service life of the oil seal assembly. In addition, since the first annular protrusion 211 is in contact with the slinger 100, the contact area is small, and the frictional force is also small, the distance between the first burring portion 210 and the slinger 100 can be set small, thereby further facilitating the prevention of oil leakage from between the first burring portion 210 and the slinger 100.
In one embodiment, the first annular protrusion 211 is a flexible member, and the shape of the first annular protrusion 211 is rectangular. When the first annular protrusion 211 is in contact with the slinger 100, since the contact area is large, the friction is also large, and the oil seal assembly is easily damaged. Therefore, in another embodiment, the first annular protrusion 211 has a first surface 211a and a second surface 211b, the first surface 211a and the second surface 211b are opposite to each other, and the first surface 211a and the second surface 211b gradually approach and intersect with each other in a direction away from the first burring portion 210. That is, the first annular protrusion 211 is triangular in shape, and when the first annular protrusion 211 is in contact with the slinger 100, since the contact area is small, the friction is also small, and the oil seal assembly is not easily damaged. In addition, the thickness of the portion of the first annular projection 211 adjacent to the slinger 100 is small, and therefore, when the slinger 200 rotates, the distance between the first annular projection 211 and the slinger 100 is increased by the centrifugal force, so that the first annular projection 211 can be prevented from contacting the slinger 100.
In a further alternative embodiment, the second outer circumferential surface 202 is further provided with a second burring part 220, the second burring part 220 extends in a direction away from the main shaft 400, in the direction in which the main shaft 400 extends, the second burring part 220 covers a gap between the oil slinger 200 and the oil slinger 100, and the first burring part 210 and the second burring part 220 are arranged at an interval. The oil can be blocked for many times through the second flanging part 220, so that the flowing speed of the oil can be greatly reduced, and the oil seal effect of the oil seal assembly is favorably improved.
In one embodiment, the second burring portion 220 is located outside the slinger 100. In this embodiment, since the second burring portion 220 is located outside the slinger 100, the slinger 200 protrudes more than the slinger 100, so that the slinger 200 is made larger in size. Therefore, in another embodiment, the first inner peripheral surface 101 of the slinger 100 is provided with the first groove 120, the first groove 120 is engaged with the second burring 220, and the first groove 120 is communicated with the oil guide passage 110. In this embodiment, the second burring 220 is located inside the slinger 100, so that the second burring 220 can be prevented from bulging with respect to the slinger 100, and the slinger 200 can be made smaller in size. In addition, the first groove 120 may collect oil, and then the oil may be more rapidly guided out through the oil guide passage 110.
In order to avoid the occurrence of a large friction, which may occur if the second burring portion 220 comes into contact with the slinger 100, in an alternative embodiment, the second burring portion 220 has a plurality of second annular protrusions 221, the plurality of second annular protrusions 221 are spaced apart in a radial direction of the slinger 200, and the plurality of second annular protrusions 221 face the slinger 100. When the second burring portion 220 comes into contact with the slinger 100, the contact area between the two is small due to the presence of the second annular protrusion 221, and therefore, no large friction is generated between the two, which is beneficial to prolonging the service life of the oil seal assembly. In addition, since the second annular projection 221 is in contact with the slinger 100, the contact area is small, and the frictional force is also small, the distance between the second burring part 220 and the slinger 100 can be set small, thereby being more advantageous in blocking oil from leaking between the second burring part 220 and the slinger 100.
In one embodiment, the oil seal assembly further includes a sealing ring 300, the second inner circumferential surface 201 of the oil slinger 200 is provided with a second groove 230, and the sealing ring 300 is sleeved on the spindle 400 and located in the second groove 230. The seal ring 300 can prevent oil from leaking between the main shaft 400 and the oil slinger 200, thereby improving the oil sealing effect of the oil seal assembly.
The oil slinger 200 is further provided with a rotation speed measurement flange which can be arranged at intervals along the circumferential direction, and optionally, the rotation speed measurement flange can be arranged at intervals of 60 degrees. The side rotational speed cuff may be used to measure the rotational speed of the spindle 400.
The embodiment of the application also discloses a water feeding pump, which comprises a main shaft 400 and an oil seal assembly in any embodiment, wherein the main shaft 400 is sleeved with the oil seal assembly. Optionally, the oil seal assembly may be disposed at the transmission end of the main shaft 400, and may also be disposed at the free end of the main shaft 400, which is not limited in this application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The oil seal assembly is used for being sleeved on a main shaft (400) of a water feeding pump and is characterized by comprising an oil retainer ring (100), wherein the oil retainer ring (100) is provided with a first inner circumferential surface (101) and a first outer circumferential surface (102), the oil retainer ring (100) is provided with an oil guide channel (110), the oil guide channel (110) is provided with an oil inlet and an oil outlet, the oil inlet is formed in the first inner circumferential surface (101), the oil outlet is formed in the first outer circumferential surface (102), and the oil guide channel (110) extends along the direction departing from the main shaft (400).
2. The oil seal assembly according to claim 1, characterized in that the oil seal assembly further comprises an oil slinger (200), the oil slinger (100) is sleeved on the oil slinger (200), the oil slinger (200) is provided with a second outer peripheral surface (202), the second outer peripheral surface (202) is provided with a first flanging part (210), and the first flanging part (210) extends along the direction departing from the main shaft (400);
the first burring (210) covers a gap between the slinger (200) and the slinger (100) in a direction in which the main shaft (400) extends.
3. The oil seal assembly according to claim 2, characterized in that the slinger (100) has an inner side surface (103), the inner side surface (103) intersects the second outer peripheral surface (202), and the inner side surface (103) opposes the first burring section (210).
4. An oil seal assembly according to claim 3, wherein the first turn-up portion (210) is spaced from the inner side face (103).
5. The oil seal assembly according to claim 2, characterized in that the first burring (210) has a plurality of first annular projections (211), the plurality of first annular projections (211) are provided at intervals in a radial direction of the slinger (200), and the plurality of first annular projections (211) face the slinger (100).
6. The oil seal assembly according to claim 5, wherein the first annular protrusion (211) is a flexible member, the first annular protrusion (211) has a first surface (211a) and a second surface (211b), the first surface (211a) and the second surface (211b) are opposite to each other, and the first surface (211a) and the second surface (211b) gradually approach and intersect in a direction away from the first burring (210).
7. An oil seal assembly according to claim 2, characterized in that the second outer peripheral surface (202) is further provided with a second burring (220), the second burring (220) extending in a direction away from the main shaft (400);
the second burring (220) covers a gap between the slinger (200) and the slinger (100) in a direction in which the main shaft (400) extends;
the first flanging part (210) and the second flanging part (220) are arranged at intervals.
8. The oil seal assembly according to claim 7, characterized in that the first inner peripheral surface (101) of the slinger (100) is provided with a first groove (120), the first groove (120) is fitted with the second burring (220), and the first groove (120) communicates with the oil guide passage (110).
9. The oil seal assembly according to claim 7, characterized in that the second burring (220) has a plurality of second annular projections (221), the plurality of second annular projections (221) are provided at intervals in a radial direction of the slinger (200), and the plurality of second annular projections (221) face the slinger (100).
10. A feed pump, comprising a main shaft (400) and the oil seal assembly of any one of claims 1 to 9, wherein the oil seal assembly is sleeved on the main shaft (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220039265.2U CN216617985U (en) | 2022-01-06 | 2022-01-06 | Oil seal assembly and water feed pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220039265.2U CN216617985U (en) | 2022-01-06 | 2022-01-06 | Oil seal assembly and water feed pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216617985U true CN216617985U (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220039265.2U Active CN216617985U (en) | 2022-01-06 | 2022-01-06 | Oil seal assembly and water feed pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216617985U (en) |
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2022
- 2022-01-06 CN CN202220039265.2U patent/CN216617985U/en active Active
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