Rotary sealing structure for turbine shaft of cooling water pump

Abstract

The utility model provides a cooling water pump turbine shaft rotary sealing structure, which relates to the technical field of sealing structures and comprises an outer sealing ring, an inner sealing ring is mounted in the outer sealing ring, an oil filling hole is formed in the top of the outer surface of the outer sealing ring, and a sealing plug is movably arranged in the oil filling hole. A connecting mechanism is arranged on one side of the outer surface of the inner sealing ring, and an oiling mechanism is further arranged on one side of the interior of the inner sealing ring. Lubricating oil can be added into the annular oil storage groove through the oil filling hole, then the lubricating oil is conveyed to the outer surface of the turbine shaft through the oil outlet holes, the whole sealing structure does not need to be disassembled, operation is more convenient and faster, in the lubricating oil adding process, the sponge protruding blocks can play a role in storing the lubricating oil, and in the using process, the lubricating oil can be stored conveniently. And the lubricating oil in the sponge convex block can be gradually conveyed into the annular oil storage groove, so that the waste of the lubricating oil can be effectively reduced, and the utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, in particular to a cooling water pump turbine shaft rotary sealing structure. Background Art

[0002] The water pump is an indispensable component in various cooling systems, and the turbine shaft is an important component of the water pump, which is mainly used to drive the turbine to rotate. In order to ensure the normal rotation of the turbine shaft, a sealing structure needs to be installed at its shaft end, such as the turbine shaft end sealing structure of the turbocharger proposed in the patent with application number 202023293133.2, which relates to the field of turbine shaft end sealing of the turbocharger, including a turbine shaft main body, an impeller connected to one side of the turbine shaft main body, second seals connected to both sides of the outer surface of the turbine shaft main body, second rotating shafts connected to both sides of the two second seals, second magnets connected to the inside of the two second seals, and sealing rings are sleeved on the inner rings of the two second seals. The above scheme increases the sealing performance and reduces oil leakage through the first oil return chamber, the second sealing ring, the third sealing ring, the second oil return chamber and the oil return port. When the turbine shaft body is working, the lubricating oil flows into the second return chamber through the oil return port, or is pushed into the first return chamber by the force of the turbine shaft body, so that most of the wheel oil enters the return chamber. At the same time, the second sealing ring and the third sealing ring are used to increase the sealing performance and reduce oil leakage of the turbine shaft during operation.

[0003] When the existing sealing structure needs to be added with lubricating oil during use, the sealing structure needs to be disassembled, which is cumbersome, time-consuming and labor-intensive. Therefore, we have made improvements to this and proposed a cooling water pump turbine shaft rotating sealing structure. Utility Model Content

[0004] The main purpose of the utility model is to provide a cooling water pump turbine shaft rotary sealing structure, which can effectively solve the problem that when the sealing structure needs to be added with lubricating oil during use, the sealing structure needs to be disassembled, which is cumbersome, time-consuming and labor-intensive.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A cooling water pump turbine shaft rotary seal structure comprises an outer sealing ring, an inner sealing ring is installed inside the outer sealing ring, a refueling hole is opened at the top of the outer surface of the outer sealing ring, a sealing plug is movably arranged inside the refueling hole, a connecting mechanism is arranged on one side of the outer surface of the inner sealing ring, and a refueling mechanism is also arranged on one side of the inner side of the inner sealing ring.

[0007] Preferably, an annular limiting groove is provided on the inner wall of one end of the outer sealing ring, and an annular limiting block is provided on the surface of one end of the inner sealing ring.

[0008] Preferably, one end of the annular limiting block is movably arranged inside the annular limiting groove, and a first guiding inclined surface is arranged on the outer side of one end surface of the inner sealing ring.

[0009] Preferably, the connecting mechanism includes a mounting plate, which is evenly distributed and installed on one side of the outer surface of the inner sealing ring, and a clamping block is provided on one side surface of each mounting plate, and a clamping groove cooperating with the clamping block is provided on one end surface of the outer sealing ring.

[0010] Preferably, the refueling mechanism includes an annular groove and a sponge protrusion, the annular groove is arranged on one side of the outer surface of the inner sealing ring, the sponge protrusion is arranged on the inner wall of the sponge protrusion, and one end of the sponge protrusion is arranged inside the annular groove.

[0011] Preferably, second guiding slopes are provided on both sides of the top of the annular groove, and an oil filling hole is formed through the surface of the sponge protrusion, and the oil filling hole is arranged below the oil filling hole.

[0012] Preferably, an annular oil storage groove is provided inside the inner sealing ring and below the oil filling hole, and a plurality of oil inlet holes are provided through the top inner wall of the annular oil storage groove.

[0013] Preferably, a plurality of oil outlet holes are formed through the inner wall of the bottom of the annular oil storage groove, and the oil outlet holes are arranged on the inner wall of the inner sealing ring.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] Lubricating oil can be added to the inside of the oil filling hole through the oil filling hole, and then enter into the inside of the annular oil storage tank through the oil inlet hole, and then transported to the outer surface of the turbine shaft through multiple oil outlet holes, thereby completing the addition of lubricating oil. There is no need to disassemble the entire sealing structure, and the operation is more convenient. During the process of adding lubricating oil, some lubricating oil will penetrate into the inside of the sponge bump. During use, the lubricating oil inside the sponge bump will gradually be transported to the inside of the annular oil storage tank. When there is more lubricating oil on the surface of the turbine shaft, it can also be reversely transported to the inside of the sponge bump through the oil outlet hole and the oil inlet hole, which can effectively reduce the waste of lubricating oil and improve utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view of the utility model;

[0018] Figure 3 For the utility model Figure 2Schematic diagram of the three-dimensional structure of the cross section at AA in the middle;

[0019] Figure 4 For the utility model Figure 3 Enlarged view of point B in the middle.

[0020] In the figure: 1. outer sealing ring; 101. annular limiting groove; 2. inner sealing ring; 201. annular limiting block; 202. first guiding slope; 3. refueling hole; 4. sealing plug; 5. connecting mechanism; 501. mounting plate; 502. clamping block; 503. clamping groove; 6. refueling mechanism; 601. annular groove; 6011. second guiding slope; 602. sponge protrusion; 603. annular oil storage tank; 604. oil filling hole; 605. oil inlet hole; 606. oil outlet hole. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 , Figure 2 As shown, a cooling water pump turbine shaft rotary sealing structure comprises an outer sealing ring 1, an inner sealing ring 2 is installed inside the outer sealing ring 1, a refueling hole 3 is opened on the top of the outer surface of the outer sealing ring 1, a sealing plug 4 is movably arranged inside the refueling hole 3, a connecting mechanism 5 is arranged on one side of the outer surface of the inner sealing ring 2, and a refueling mechanism 6 is also arranged on one side of the inner side of the inner sealing ring 2.

[0023] like Figure 3 As shown, an annular limiting groove 101 is provided on the inner wall of one end of the outer sealing ring 1, an annular limiting block 201 is provided on the surface of one end of the inner sealing ring 2, one end of the annular limiting block 201 is movably arranged inside the annular limiting groove 101, a first guiding inclined surface 202 is provided on the outer side of one end surface of the inner sealing ring 2, the connecting mechanism 5 includes a mounting plate 501, the mounting plates 501 are evenly distributed and installed on one side of the outer surface of the inner sealing ring 2, a clamping block 502 is provided on one side surface of each mounting plate 501, and a clamping groove 503 cooperating with the clamping block 502 is provided on the surface of one end of the outer sealing ring 1.

[0024] Through the cooperation between the annular limiting block 201 and the annular limiting groove 101, the position of the inner sealing ring 2 inside the outer sealing ring 1 can be limited, and through the cooperation between the clamping block 502 and the clamping groove 503, the position of the inner sealing ring 2 can be fixed, which is convenient for use and disassembly, and is convenient for maintenance and replacement.

[0025] like Figure 3 , Figure 4 As shown, the refueling mechanism 6 includes an annular groove 601 and a sponge protrusion 602, the annular groove 601 is arranged on one side of the outer surface of the inner sealing ring 2, the sponge protrusion 602 is arranged on the inner wall of the sponge protrusion 602, one end of the sponge protrusion 602 is arranged inside the annular groove 601, and second guiding inclined surfaces 6011 are arranged on both sides of the top of the annular groove 601. An oil filling hole 604 is opened through the surface of the sponge protrusion 602, and the oil filling hole 604 is arranged below the refueling hole 3. An annular oil storage groove 603 is opened inside the inner sealing ring 2 and below the oil filling hole 604, a plurality of oil inlet holes 605 are opened through the top inner wall of the annular oil storage groove 603, and a plurality of oil outlet holes 606 are opened through the bottom inner wall of the annular oil storage groove 603, and the oil outlet holes 606 are arranged on the inner wall of the inner sealing ring 2.

[0026] A first guiding bevel 202 is provided at the end of the inner sealing ring 2, and second guiding bevels 6011 are provided on both sides of the top of the annular groove 601, which can play a guiding role in the process of installing the inner sealing ring 2 into the outer sealing ring 1, facilitating the cooperation between the sponge protrusion 602 and the annular groove 601.

[0027] The working principle of the cooling water pump turbine shaft rotary seal structure:

[0028] When in use, the end of the turbine shaft is installed inside the inner sealing ring 2. The inner sealing ring 2 can be installed inside the outer sealing ring 1 through the clamping fit between the clamping block 502 and the clamping groove 503. After the inner sealing ring 2 is installed, the sponge protrusion 602 on the inner wall of the outer sealing ring 1 will cooperate with the annular groove 601 on its surface. When it is necessary to add lubricating oil, remove the sealing plug 4 inside the filling hole 3, add lubricating oil to the inside of the oil filling hole 604 through the filling hole 3, and then enter the inside of the annular oil storage tank 603 through the oil inlet hole 605, and then pass through multiple oil outlets. The lubricating oil is transported to the outer surface of the turbine shaft through hole 606, thereby completing the addition of lubricating oil. There is no need to disassemble the entire sealing structure, and the operation is more convenient. During the process of adding lubricating oil, part of the lubricating oil will penetrate into the interior of the sponge protrusion 602. During use, the lubricating oil inside the sponge protrusion 602 will gradually be transported to the interior of the annular oil storage tank 603. When there is more lubricating oil on the surface of the turbine shaft, it can also be reversely transported to the interior of the sponge protrusion 602 through the oil outlet hole 606 and the oil inlet hole 605, which can effectively reduce the waste of lubricating oil and improve utilization rate.

[0029] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A cooling water pump turbine shaft rotary seal structure, comprising an outer seal ring (1), characterized in that: An inner sealing ring (2) is installed inside the outer sealing ring (1); a refueling hole (3) is provided at the top of the outer surface of the outer sealing ring (1); a sealing plug (4) is movably provided inside the refueling hole (3); a connecting mechanism (5) is provided on one side of the outer surface of the inner sealing ring (2); and a refueling mechanism (6) is also provided on one side of the inner surface of the inner sealing ring (2).

2. A cooling water pump turbine shaft rotary seal structure according to claim 1, characterized in that: An annular limiting groove (101) is provided on the inner wall of one end of the outer sealing ring (1), and an annular limiting block (201) is provided on the surface of one end of the inner sealing ring (2).

3. A cooling water pump turbine shaft rotary seal structure according to claim 2, characterized in that: One end of the annular limiting block (201) is movably arranged inside the annular limiting groove (101), and a first guiding inclined surface (202) is arranged on the outer side of one end surface of the inner sealing ring (2).

4. The cooling water pump turbine shaft rotary seal structure according to claim 1, characterized in that: The connecting mechanism (5) comprises a mounting plate (501), the mounting plates (501) being evenly distributed and mounted on one side of the outer surface of the inner sealing ring (2), a clamping block (502) being provided on one side surface of each mounting plate (501), and a clamping groove (503) cooperating with the clamping block (502) being provided on one end surface of the outer sealing ring (1).

5. The cooling water pump turbine shaft rotary seal structure according to claim 1, characterized in that: The refueling mechanism (6) comprises an annular groove (601) and a sponge protrusion (602); the annular groove (601) is arranged on one side of the outer surface of the inner sealing ring (2); a sponge protrusion (602) is arranged on the inner wall of the sponge protrusion (602); and one end of the sponge protrusion (602) is arranged inside the annular groove (601).

6. A cooling water pump turbine shaft rotary seal structure according to claim 5, characterized in that: Second guiding slopes (6011) are provided on both sides of the top of the annular groove (601), and an oil filling hole (604) is provided through the surface of the sponge protrusion (602), and the oil filling hole (604) is arranged below the oil filling hole (3).

7. A cooling water pump turbine shaft rotary seal structure according to claim 6, characterized in that: An annular oil storage groove (603) is provided inside the inner sealing ring (2) and below the oil filling hole (604), and a plurality of oil inlet holes (605) are provided through the top inner wall of the annular oil storage groove (603).

8. The cooling water pump turbine shaft rotary seal structure according to claim 7, characterized in that: A plurality of oil outlet holes (606) are provided through the inner wall of the bottom of the annular oil storage groove (603), and the oil outlet holes (606) are arranged on the inner wall of the inner sealing ring (2).

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