High-sealing-performance high-strength stainless steel mixed-flow pump impeller

Abstract

The utility model relates to the related technical field of mixed-flow pumps, in particular to a high-sealing-performance high-strength stainless steel mixed-flow pump impeller which comprises an impeller body, a sealing mechanism is arranged on the outer side surface of the impeller body, and a lubricating mechanism is arranged in the sealing mechanism. Through the arrangement of an oil bin, oil absorption cotton, an oil injection hole, an oil outlet hole, a filter screen, a threaded bolt, a third limiting groove and a third sealing ring, firstly, the impeller body is installed in the mixed-flow pump, at the moment, a rubber ring in an installation groove pops up the impeller body through a spring, and therefore fine pushing is conducted according to the size of the inner wall of the mixed-flow pump; the outer wall of the rubber ring abuts against the inner wall of the mixed-flow pump to seal the mixed-flow pump, the rubber ring is made of rubber, and the rubber material has a deformation effect, so that deformation of the mixed-flow pump cannot be affected due to the fact that the rubber ring is annular in the stretching and retracting process.

Description

Technical Field

[0001] This utility model relates to the technical field of mixed flow pumps, and in particular to a high-strength stainless steel mixed flow pump impeller with high sealing performance. Background Technology

[0002] A mixed-flow pump is a type of pump that falls between a centrifugal pump and an axial-flow pump. The specific speed of a mixed-flow pump is higher than that of a centrifugal pump but lower than that of an axial-flow pump, typically between 300 and 500 km / h. Its head is higher than that of an axial-flow pump, but its flow rate is lower than that of an axial-flow pump but higher than that of a centrifugal pump. The basic components of a mixed-flow pump include an impeller, pump body, seals, bearings, and a drive unit. To better seal the impeller after installation, a high-strength stainless steel mixed-flow pump impeller with high sealing performance is particularly needed.

[0003] Because existing mixed-flow pumps do not have a good sealing effect when installed with the impeller, fluid may enter the impeller during use, causing damage to the pump body. This is not conducive to the protection of the impeller and the extension of its service life. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength stainless steel mixed-flow pump impeller with high sealing performance, in order to solve the problem mentioned in the background art that the existing mixed-flow pumps do not have a good sealing effect when installed with the impeller. This may lead to fluid entering the impeller during use, causing damage to the pump body, which is not conducive to the protection of the impeller and the extension of its service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength stainless steel mixed-flow pump impeller with high sealing performance, comprising an impeller body, a sealing mechanism provided on the outer surface of the impeller body, and a lubrication mechanism provided inside the sealing mechanism;

[0006] The sealing mechanism includes a mounting groove, a limiting post, a spring, a rubber ring, a first limiting groove, a second limiting groove, a first sealing ring, and a second sealing ring. The mounting groove is formed on the outer surface of the impeller body. A limiting post is fixedly connected to one side surface of the mounting groove. A spring is fixedly connected to one side surface of the mounting groove. A rubber ring is fixedly connected to one end surface of the spring. A first limiting groove is formed on one side surface of the mounting groove. A second limiting groove is formed on one side surface of the mounting groove. A first sealing ring is installed inside the first limiting groove. A second sealing ring is installed inside the second limiting groove.

[0007] Preferably, the limiting posts are evenly distributed on one side surface of the mounting groove, and the limiting posts are telescopic structures. The limiting posts are evenly distributed on one side surface of the mounting groove and their positions match those of the limiting posts.

[0008] Preferably, both the first and second sealing rings are made of rubber, and the outer wall dimensions of the rubber ring match the inner wall dimensions of the mounting groove.

[0009] Preferably, the rubber ring forms a telescopic structure with a spring and a mounting groove, and the impeller body is made of stainless steel.

[0010] Preferably, the lubrication mechanism includes an oil reservoir, oil-absorbing cotton, an oil injection hole, an oil outlet hole, a filter screen, a threaded bolt, a third limiting groove, and a third sealing ring. The oil reservoir is located inside the rubber ring and is filled with oil-absorbing cotton. An oil injection hole and an oil outlet hole are located on the outer surface of the rubber ring. A filter screen is fixedly connected to the inner surface of the oil outlet hole. A threaded bolt is threadedly connected to the inner surface of the oil injection hole. A third limiting groove is located on one side surface of the threaded bolt, and a third sealing ring is installed inside the third limiting groove.

[0011] Preferably, the oil outlet holes are evenly spaced on the outer surface of the rubber ring, and the threaded bolt and the oil outlet holes form a threaded structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-strength stainless steel mixed-flow pump impeller with high sealing performance, through the setting of oil tank, oil suction cotton, oil injection hole, oil outlet hole, filter screen, threaded bolt, third limiting groove and third sealing ring, when the impeller body is installed, the impeller body is first installed into the inside of the mixed-flow pump. At this time, the rubber ring inside the mounting groove will be ejected by the spring, and thus made slightly pushed according to the inner wall size of the mixed-flow pump, so that the outer wall of the rubber ring abuts against the inner wall of the mixed-flow pump to seal it. At this time, the limiting post can limit the movement trajectory of the spring. Because the rubber ring is made of rubber, and rubber has the effect of deformation, its deformation will not be affected by its ring shape during the expansion and contraction process. Through the first sealing ring set inside the first limiting groove and the second sealing ring set inside the second limiting groove, the connection point between the mounting groove and the rubber ring can be further sealed, thereby increasing its sealing effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the mounting groove and the limiting post used in conjunction with this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the rubber ring and oil-absorbing cotton used in conjunction with this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the threaded bolt and the third limiting groove of this utility model.

[0017] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 6 This utility model Figure 3 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Impeller body; 2. Sealing mechanism; 201. Mounting groove; 202. Limiting post; 203. Spring; 204. Rubber ring; 205. First limiting groove; 206. Second limiting groove; 207. First sealing ring; 208. Second sealing ring; 3. Lubrication mechanism; 301. Oil tank; 302. Oil-absorbing cotton; 303. Oil injection hole; 304. Oil outlet hole; 305. Filter screen; 306. Threaded bolt; 307. Third limiting groove; 308. Third sealing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-6 This utility model provides a technical solution: a high-strength stainless steel mixed flow pump impeller with high sealing performance, including an impeller body 1, a sealing mechanism 2 provided on the outer surface of the impeller body 1, and a lubrication mechanism 3 provided inside the sealing mechanism 2;

[0022] The sealing mechanism 2 includes a mounting groove 201, a limiting post 202, a spring 203, a rubber ring 204, a first limiting groove 205, a second limiting groove 206, a first sealing ring 207, and a second sealing ring 208. The mounting groove 201 is formed on the outer surface of the impeller body 1. A limiting post 202 is fixedly connected to one side surface of the mounting groove 201. A spring 203 is fixedly connected to one side surface of the mounting groove 201, and a rubber ring 204 is fixedly connected to one end surface of the spring 203. A first limiting groove 205 and a second limiting groove 206 are formed on one side surface of the mounting groove 201. A first sealing ring 207 is installed inside the first limiting groove 205, and a second sealing ring 208 is installed inside the second limiting groove 206. The sealing mechanism 2, through the mounting groove 201, limiting post 202, spring 203, rubber ring 204, first limiting groove 205, and second limiting groove 208, provides a sealing seal. 6. The setting of the first sealing ring 207 and the second sealing ring 208: When installing the impeller body 1, the impeller body 1 is first installed into the mixed flow pump. At this time, the rubber ring 204 inside the mounting groove 201 will be ejected by the spring 203, and thus be pushed slightly according to the inner wall size of the mixed flow pump, so that the outer wall of the rubber ring 204 abuts against the inner wall of the mixed flow pump to seal it. At this time, the limiting post 202 can limit the movement trajectory of the spring 203. Because the rubber ring 204 is made of rubber, and rubber has the effect of deformation, its deformation will not be affected by its ring shape during the expansion and contraction process. The first sealing ring 207 set inside the first limiting groove 205 and the second sealing ring 208 set inside the second limiting groove 206 can further seal the connection point between the mounting groove 201 and the rubber ring 204, thereby increasing its sealing effect.

[0023] Furthermore, the limiting posts 202 are evenly distributed on one side surface of the mounting groove 201. The limiting posts 202 are telescopic structures. The limiting posts 202 are evenly distributed on one side surface of the mounting groove 201 and their positions match those of the limiting posts 202. By setting the limiting posts 202, the movement trajectory of the spring 203 can be limited during the deformation of the spring 203.

[0024] Furthermore, both the first sealing ring 207 and the second sealing ring 208 are made of rubber. The outer wall size of the rubber ring 204 matches the inner wall size of the mounting groove 201. By setting the first sealing ring 207, the connection point between the mounting groove 201 and the rubber ring 204 can be further sealed.

[0025] Furthermore, the rubber ring 204 forms a telescopic structure with the mounting groove 201 via the spring 203. The impeller body 1 is made of stainless steel. By making the impeller body 1 of stainless steel, damage and corrosion caused by rust can be reduced, thereby increasing its strength.

[0026] Furthermore, the lubrication mechanism 3 includes an oil reservoir 301, oil-absorbing cotton 302, an oil injection hole 303, an oil outlet hole 304, a filter screen 305, a threaded bolt 306, a third limiting groove 307, and a third sealing ring 308. The oil reservoir 301 is located inside the rubber ring 204, and the oil reservoir 301 is filled with oil-absorbing cotton 302. An oil injection hole 303 and an oil outlet hole 304 are located on the outer surface of the rubber ring 204. A filter screen 305 is fixedly connected to the inner surface of the oil outlet hole 304. A threaded bolt 306 is threadedly connected to the inner surface of the oil injection hole 303. A third limiting groove 307 is located on one side of the threaded bolt 306, and a third sealing ring 308 is installed inside the third limiting groove 307. The lubrication mechanism utilizes the oil reservoir 301, oil-absorbing cotton 302, and oil injection hole 303... The oil outlet 304, filter screen 305, threaded bolt 306, third limiting groove 307, and third sealing ring 308 are designed to reduce damage to the inner wall surface of the mixed flow pump due to friction during the rotation of the impeller body 1, allowing for smoother rotation. First, lubricating oil is injected into the oil tank 301 through the oil injection hole 303. The oil-absorbing cotton 302 and filter screen 305 inside the oil tank 301 prevent excessive leakage of lubricating oil. Then, the threaded bolt 306 is rotated to connect to the oil injection hole 303. The third sealing ring 308 inside the third limiting groove 307 seals the connection point between the oil injection hole 303 and the threaded bolt 306. Thus, during the rotation of the impeller body 1, lubricating oil leaks out through the oil outlet 304, providing lubrication.

[0027] Furthermore, oil outlet holes 304 are evenly spaced on the outer surface of the rubber ring 204, and the threaded bolt 306 and the oil outlet holes 304 form a threaded structure. With the setting of the oil outlet holes 304, lubricating oil will leak out through the oil outlet holes 304 during the rotation of the impeller body 1, and lubricate the inner wall surface of the impeller body 1 and the mixed flow pump.

[0028] Working principle: When installing the impeller body 1, it is first installed inside the mixed flow pump. At this time, the rubber ring 204 inside the mounting groove 201 will be ejected by the spring 203, thus making a slight push according to the inner wall size of the mixed flow pump, so that the outer wall of the rubber ring 204 abuts against the inner wall of the mixed flow pump, sealing it. At this time, the limiting post 202 can limit the movement trajectory of the spring 203. Because the rubber ring 204 is made of rubber, and rubber has a deformation effect, its ring shape will not affect its deformation during the expansion and contraction process. Through the first sealing ring 207 set inside the first limiting groove 205 and the second sealing ring 208 set inside the second limiting groove 206, the mounting groove 201 can be sealed. The connection point between impeller body 1 and rubber ring 204 is further sealed to increase its sealing effect. During the rotation of impeller body 1, in order to reduce the damage caused by friction between it and the inner wall surface of the mixed flow pump and make its rotation smoother, lubricating oil is first injected into oil tank 301 through oil injection hole 303. At this time, the oil absorption cotton 302 and filter screen 305 inside oil tank 301 can prevent a large amount of lubricating oil leakage. Then, the threaded bolt 306 is rotated to connect the threaded connection of oil injection hole 303. Through the third sealing ring 308 inside the third limiting groove 307, the connection point between oil injection hole 303 and threaded bolt 306 can be sealed. During the rotation of impeller body 1, lubricating oil will leak out through oil outlet hole 304 to lubricate it.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength stainless steel mixed flow pump impeller with high sealing performance, comprising an impeller body (1), characterized in that: The outer surface of the impeller body (1) is provided with a sealing mechanism (2), and the inside of the sealing mechanism (2) is provided with a lubricating mechanism (3); The sealing mechanism (2) comprises a mounting groove (201), a limiting column (202), a spring (203), a rubber ring (204), a first limiting groove (205), a second limiting groove (206), a first sealing ring (207) and a second sealing ring (208), the outer surface of the impeller body (1) is provided with a mounting groove (201), one side surface of the mounting groove (201) is fixedly connected with a limiting column (202), one side surface of the mounting groove (201) is fixedly connected with a spring (203), one end surface of the spring (203) is fixedly connected with a rubber ring (204), one side surface of the mounting groove (201) is provided with a first limiting groove (205), one side surface of the mounting groove (201) is provided with a second limiting groove (206), the first limiting groove (205) is internally provided with a first sealing ring (207), and the second limiting groove (206) is internally provided with a second sealing ring (208).

2. A high strength stainless steel mixed flow pump impeller with high sealing performance according to claim 1, characterized in that: The limiting columns (202) are equidistantly distributed on one side surface of the mounting groove (201), the limiting columns (202) are of a telescopic structure, the limiting columns (202) are equidistantly distributed on one side surface of the mounting groove (201) and are matched with the positions of the limiting columns (202).

3. A high strength stainless steel mixed flow pump impeller with high sealing performance according to claim 1, characterized in that: The first sealing ring (207) and the second sealing ring (208) are made of rubber material, and the outer wall size of the rubber ring (204) is matched with the inner wall size of the mounting groove (201).

4. A high strength stainless steel mixed flow pump impeller with high sealing performance according to claim 1, characterized in that: The rubber ring (204) and the mounting groove (201) constitute a telescopic structure through the spring (203), and the impeller body (1) is made of stainless steel.

5. A high strength stainless steel mixed flow pump impeller with high sealing property according to claim 1, characterized in that: The lubricating mechanism (3) comprises an oil tank (301), oil absorbing cotton (302), an oil injection hole (303), an oil outlet hole (304), a filter screen (305), a threaded bolt (306), a third limiting groove (307) and a third sealing ring (308), the inside of the rubber ring (204) is provided with an oil tank (301), the inside of the oil tank (301) is filled with oil absorbing cotton (302), the outer side surface of the rubber ring (204) is provided with an oil injection hole (303), the outer side surface of the rubber ring (204) is provided with an oil outlet hole (304), the inner side surface of the oil outlet hole (304) is fixedly connected with a filter screen (305), the inner side surface of the oil injection hole (303) is threadedly connected with a threaded bolt (306), one side surface of the threaded bolt (306) is provided with a third limiting groove (307), and the third limiting groove (307) is internally provided with a third sealing ring (308).

6. A high strength stainless steel mixed flow pump impeller with high sealing performance according to claim 5, characterized in that: The oil outlet holes (304) are equidistantly arranged on the outer side surface of the rubber ring (204), and the threaded bolt (306) and the oil outlet hole (304) constitute a threaded structure.

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