Bearing for water pump

Abstract

The utility model relates to the technical field of bearings, and particularly discloses a bearing for a water pump, which comprises an outer ring, an inner ring and rolling bodies, and further comprises an oil supply structure for providing lubricating oil for each rolling body, an oil storage cavity is arranged in the outer ring, the oil storage cavity is positioned outside the inner ring, an oil duct is reserved between the outer ring and the inner ring, the oil supply structure is communicated with the oil storage cavity, and the oil storage cavity is communicated with the oil duct. And the oil duct is communicated with each rolling body. In the using process of the water pump bearing, the oil supply structure can enable lubricating oil to enter the oil storage cavity, then enter the oil channels from the oil storage cavity and finally reach the positions where the rolling bodies are located from the oil channels, so that the lubricating oil is provided for the rolling bodies, friction between the rolling bodies and the outer ring and friction between the rolling bodies and the inner ring are reduced, and abrasion of the water pump bearing is greatly reduced; the service life of the water pump bearing is prolonged. When the lubricating oil in the oil storage cavity is insufficient, the water pump can be disassembled regularly, and the lubricating oil in the oil storage cavity is added through the oil supply structure, so that the water pump bearing can be used for a long time without being damaged.

Description

Technical Field

[0001] The present application relates to the technical field of bearings, and in particular to a bearing for a water pump. Background Art

[0002] Water pump bearing is a kind of bearing used in water pump, mainly used to support and rotate the water pump shaft. Its main function is to transmit power and drive the water pump impeller to rotate, thereby realizing the transportation or circulation of liquid.

[0003] Water pump bearings usually consist of an inner ring, an outer ring, rolling elements (balls or rollers), etc. The inner ring is fixed to the water pump shaft, the outer ring is fixed to the water pump housing, and the rolling elements are located between the inner and outer rings to reduce friction and wear through rolling motion.

[0004] Although the existence of rolling elements reduces the friction between the inner ring and the outer ring, the rolling elements, inner ring and outer ring will still wear after long-term use. When the wear is more serious, the life of the water pump bearing will be significantly reduced. At this time, the working condition of the water pump bearing will also be greatly affected, so there is room for improvement. Utility Model Content

[0005] In order to reduce the wear of a water pump bearing during operation and extend its service life, the present application provides a bearing for a water pump.

[0006] The present application provides a bearing for a water pump, which adopts the following technical solution:

[0007] A bearing for a water pump, comprising an outer ring, an inner ring and rolling elements, and also comprising an oil supply structure arranged in the outer ring and used to provide lubricating oil to each of the rolling elements, wherein an annular oil storage cavity is arranged in the outer ring, and the oil storage cavity is located outside the inner ring;

[0008] An oil passage for lubricating oil to pass through is reserved between the outer ring and the inner ring, the oil supply structure is communicated with the oil storage cavity, the oil storage cavity is communicated with the oil passage, and the oil passage is communicated with each rolling element.

[0009] By adopting the above technical solution, during the use of the water pump bearing, the oil supply structure can allow the lubricating oil to enter the oil storage chamber, then enter the oil channel from the oil storage chamber, and finally reach the position of each rolling element from the oil channel, thereby providing lubricating oil to the rolling element, reducing the friction between the rolling element and the outer ring and the inner ring, thereby greatly reducing the wear of the water pump bearing and increasing the service life of the water pump bearing. When the lubricating oil in the oil storage chamber is insufficient, the water pump can be disassembled regularly, and the lubricating oil in the oil storage chamber can be added through the oil supply structure, so that the water pump bearing can be used for a long time without damage.

[0010] Optionally, the oil supply structure includes an oil supply channel arranged in the outer ring and passing through the end of the outer ring, and a one-way oil valve arranged at the end of the outer ring, the oil supply channel is connected to the oil storage chamber, and the end of the oil supply channel away from the oil storage chamber can be connected to an external oil supply system.

[0011] By adopting the above technical solution, when it is necessary to supply lubricating oil to the oil storage chamber, the external oil supply system is connected to the oil supply channel, and the lubricating oil is sent into the oil storage chamber for storage through the oil supply channel. The one-way oil valve can prevent the lubricating oil entering the oil supply channel from flowing out of the water pump bearing, so that the lubricating oil can be stably stored in the oil storage chamber.

[0012] Optionally, a valve opening structure for controlling the oil output of the oil storage chamber and a pressurizing component for driving the valve opening structure to automatically open are provided between the oil storage chamber and the oil passage.

[0013] By adopting the above technical solution, after the lubricating oil is added to the oil storage chamber, it is necessary to increase the air pressure in the oil storage chamber through the pressurizing component. As the air pressure in the oil storage chamber increases, the valve opening structure will automatically open under the action of the air pressure, so that the lubricating oil in the oil storage chamber can slowly penetrate into the oil channel, enter the position of each rolling body through the oil channel, lubricate the rolling body, reduce the friction damage of the water pump bearing during use, and thus extend the service life of the water pump bearing.

[0014] Optionally, the valve opening structure includes a guide groove opened in the outer ring, a piston column with a sliding seal arranged in the guide groove, and a pulling member for pulling one end of the piston column, one end of the guide groove is connected to the oil storage chamber, a connecting groove is opened on the side wall of the guide groove, the connecting groove is connected to the oil channel, one end of the pulling member is fixedly connected to the inner wall of the guide groove, and the other end is fixedly connected to the piston column; the pressurizing assembly is used to adjust the air pressure in the oil storage chamber.

[0015] By adopting the above technical solution, under the push of the air pressure in the oil storage chamber, the piston rod slides along the guide groove. When both ends of the piston rod pass through the connecting groove, the lubricating oil in the oil storage chamber passes through the guide groove and then enters the oil channel through the connecting channel, and finally reaches each rolling element through the oil channel.

[0016] Optionally, the valve opening structure is provided in multiple groups.

[0017] By adopting the above technical solution, multiple sets of valve opening structures can open valves simultaneously under the action of the air pressure in the oil storage chamber, so that more lubricating oil can lubricate the rolling elements.

[0018] Optionally, a plurality of groups of the valve opening structures are evenly arranged in a circle within the outer ring.

[0019] By adopting the above technical solution, each valve opening structure can evenly provide lubricating oil to each rolling element, thereby improving the overall lubrication effect of the water pump bearing.

[0020] Optionally, the pressurizing assembly includes a pressurizing tube with one end passing through the end of the outer ring and arranged inside the outer ring, and a one-way air valve arranged at one end of the pressurizing tube, the other end of the pressurizing tube is connected to the oil storage chamber, and the end of the pressurizing tube passing through the end of the outer ring is connected to an external pump air system.

[0021] By adopting the above technical solution, when it is necessary to pressurize the oil storage chamber, the external pump air system is connected to the pressurizing pipe, and the gas enters the oil storage chamber through the pressurizing pipe, thereby increasing the air pressure in the oil storage chamber, and the one-way air valve can store the gas entering the oil storage chamber in the oil storage chamber, so that the air pressure in the oil storage chamber can continuously press the lubricating oil in the oil storage chamber into each rolling element.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. During the use of the water pump bearing, the oil supply structure allows the lubricating oil to enter the oil storage chamber, then enter the oil channel from the oil storage chamber, and finally reach the location of each rolling element through the oil channel, thereby providing lubricating oil to the rolling element, reducing the friction between the rolling element and the outer ring and inner ring, thereby greatly reducing the wear of the water pump bearing and increasing the service life of the water pump bearing. When the lubricating oil in the oil storage chamber is insufficient, the water pump can be disassembled regularly and the lubricating oil in the oil storage chamber can be added through the oil supply structure, so that the water pump bearing can be used for a long time without damage;

[0024] 2. After adding lubricating oil into the oil storage chamber, it is necessary to increase the air pressure in the oil storage chamber through the pressurizing component. As the air pressure in the oil storage chamber increases, the valve structure will automatically open under the action of the air pressure, so that the lubricating oil in the oil storage chamber can slowly penetrate into the oil channel and enter the position of each rolling element through the oil channel to lubricate the rolling element, thereby reducing the friction damage of the water pump bearing during use, thereby extending the service life of the water pump bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the water pump bearing;

[0027] Figure 2It is a schematic diagram of the internal structure of the water pump bearing.

[0028] Figure numerals: 1. outer ring; 2. inner ring; 3. rolling element; 4. oil supply structure; 41. oil supply channel; 42. one-way oil valve; 5. oil storage chamber; 6. oil channel; 7. valve opening structure; 71. guide groove; 72. piston column; 73. pulling member; 8. pressurizing assembly; 81. pressurizing pipe; 82. one-way air valve; 9. connecting groove. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-2 , further details of this application are given.

[0030] The embodiment of the present application discloses a bearing for a water pump.

[0031] A bearing for a water pump, referring to Figure 1 and Figure 2 , including an outer ring 1, an inner ring 2 and rolling elements 3, and also including an oil supply structure 4 arranged in the outer ring 1 and used to provide lubricating oil to each rolling element 3, an annular oil storage cavity 5 is arranged in the outer ring 1, and the oil storage cavity 5 is located outside the inner ring 2. An oil passage 6 for lubricating oil to pass through is reserved between the outer ring 1 and the inner ring 2, the oil supply structure 4 is connected to the oil storage cavity 5, the oil storage cavity 5 is connected to the oil passage 6, and the oil passage 6 is connected to each rolling element 3.

[0032] An opening valve structure 7 for controlling the oil output of the oil storage chamber 5 and a pressurizing component 8 for driving the opening valve structure 7 to open automatically are arranged between the oil storage chamber 5 and the oil passage 6 .

[0033] Reference Figure 2 The oil supply structure 4 includes an oil supply channel 41 arranged in the outer ring 1 and passing through the end of the outer ring 1, and a one-way oil valve 42 arranged at the end of the outer ring 1. The oil supply channel 41 is connected with the oil storage chamber 5, and the end of the oil supply channel 41 away from the oil storage chamber 5 can be connected with the external oil supply system.

[0034] When lubricating oil needs to be supplied to the oil storage chamber 5, the external oil supply system is connected to the oil supply channel 41, and the lubricating oil is sent into the oil storage chamber 5 for storage through the oil supply channel 41. The one-way oil valve 42 can prevent the lubricating oil entering the oil supply channel 41 from flowing out of the water pump bearing, so that the lubricating oil can be stably stored in the oil storage chamber 5.

[0035] Reference Figure 2, multiple groups of valve opening structures 7 are provided, and the multiple groups of valve opening structures 7 are evenly arranged in a circle in the outer ring 1. The valve opening structure 7 includes a guide groove 71 opened in the outer ring 1, a piston column 72 with a sliding seal arranged in the guide groove 71, and a pulling member 73 for pulling one end of the piston column 72. One end of the guide groove 71 is connected to the oil storage chamber 5, and a connecting groove 9 is provided on the side wall of the guide groove 71. The connecting groove 9 is connected to the oil channel 6. One end of the pulling member 73 is fixedly connected to the inner wall of the guide groove 71, and the other end is fixedly connected to the piston column 72.

[0036] Under the push of the air pressure in the oil storage chamber 5, the piston rod 72 slides along the guide groove 71. When both ends of the piston rod 72 pass through the connecting groove 9, the lubricating oil in the oil storage chamber 5 passes through the guide groove 71 and then enters the oil channel 6 through the connecting channel, and finally reaches each rolling element 3 through the oil channel 6.

[0037] The pressurizing assembly 8 is used to adjust the air pressure in the oil storage chamber 5. Figure 2 The pressurizing assembly 8 includes a pressurizing tube 81 with one end passing through the end of the outer ring 1 and arranged inside the outer ring 1, and a one-way air valve 82 arranged at one end of the pressurizing tube 81. The other end of the pressurizing tube 81 is connected to the oil storage chamber 5, and the end of the pressurizing tube 81 passing through the end of the outer ring 1 can be connected to the external pump air system.

[0038] When it is necessary to pressurize the oil storage chamber 5, the external pump air system is connected to the pressurizing pipe 81, and the gas enters the oil storage chamber 5 through the pressurizing pipe 81, thereby increasing the air pressure in the oil storage chamber 5. The one-way air valve 82 can store the gas entering the oil storage chamber 5 in the oil storage chamber 5, so that the air pressure in the oil storage chamber 5 can continuously press the lubricating oil in the oil storage chamber 5 into each rolling body 3 to lubricate the rolling body 3.

[0039] The implementation principle of a bearing for a water pump in the embodiment of the present application is as follows: during the use of the water pump bearing, the oil supply structure 4 can allow the lubricating oil to enter the oil storage chamber 5, then enter the oil channel 6 from the oil storage chamber 5, and finally reach the position of each rolling element 3 from the oil channel 6, thereby providing lubricating oil to the rolling element 3, reducing the friction between the rolling element 3 and the outer ring 1 and the inner ring 2, thereby greatly reducing the wear of the water pump bearing and increasing the service life of the water pump bearing. When the lubricating oil in the oil storage chamber 5 is insufficient, the water pump can be disassembled regularly, and the lubricating oil in the oil storage chamber 5 can be added through the oil supply structure 4, so that the water pump bearing can be used for a long time without damage.

[0040] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bearing for a water pump, comprising an outer ring (1), an inner ring (2) and a rolling element (3), characterized in that: It also includes an oil supply structure (4) disposed in the outer ring (1) and used for supplying lubricating oil to each rolling element (3); an annular oil storage cavity (5) is disposed in the outer ring (1), and the oil storage cavity (5) is located outside the inner ring (2); An oil passage (6) for lubricating oil to pass through is reserved between the outer ring (1) and the inner ring (2); the oil supply structure (4) is connected to the oil storage chamber (5); the oil storage chamber (5) is connected to the oil passage (6); and the oil passage (6) is connected to each rolling element (3).

2. A water pump bearing according to claim 1, characterized in that: The oil supply structure (4) comprises an oil supply channel (41) arranged in the outer ring (1) and penetrating the end of the outer ring (1), and a one-way oil valve (42) arranged at the end of the outer ring (1); the oil supply channel (41) is connected to the oil storage chamber (5); and one end of the oil supply channel (41) away from the oil storage chamber (5) can be connected to an external oil supply system.

3. A water pump bearing according to claim 1, characterized in that: An opening valve structure (7) for controlling the oil output from the oil storage chamber (5) and a pressurizing component (8) for driving the opening valve structure (7) to automatically open are provided between the oil storage chamber (5) and the oil passage (6).

4. A water pump bearing according to claim 3, characterized in that: The valve opening structure (7) includes a guide groove (71) provided in the outer ring (1), a piston column (72) with a sliding seal arranged in the guide groove (71), and a pulling member (73) for pulling one end of the piston column (72); one end of the guide groove (71) is connected to the oil storage chamber (5); a connecting groove (9) is provided on the side wall of the guide groove (71); the connecting groove (9) is connected to the oil channel (6); one end of the pulling member (73) is fixedly connected to the inner wall of the guide groove (71), and the other end is fixedly connected to the piston column (72); the pressurizing component (8) is used to adjust the air pressure in the oil storage chamber (5).

5. A water pump bearing according to claim 4, characterized in that: The valve opening structures (7) are provided in multiple groups.

6. A water pump bearing according to claim 5, characterized in that: A plurality of groups of the valve opening structures (7) are evenly arranged in a circumference within the outer ring (1).

7. A water pump bearing according to claim 3, characterized in that: The pressurizing component (8) comprises a pressurizing tube (81) having one end passing through the end of the outer ring (1) and arranged inside the outer ring (1), and a one-way air valve (82) arranged at one end of the pressurizing tube (81); the other end of the pressurizing tube (81) is connected to the oil storage chamber (5); and the end of the pressurizing tube (81) passing through the end of the outer ring (1) is connected to an external pump air system.

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