Impeller bearing device for a water pump of a motor vehicle

Abstract

The application relates to the field of automobile technology, in particular to a vane bearing device of an automobile water pump, which comprises an outer ring and an inner ring, a sealing guide ring is slid between the outer ring and the inner ring, a plurality of abutting elastic rings arranged at equal intervals are limited and slid on the inner surface of the inner ring, a pressing ring is arranged between the abutting elastic rings and slid on the inner surface of the inner ring, a locking ring is arranged on one side of the pressing ring, and the outer surface of the locking ring is screwed and clamped in the inner part of the inner ring; a plurality of abutting elastic rings and a pressing ring are arranged in the inner ring, a main shaft is arranged in the inner part of the inner ring, the abutting elastic rings are flexibly attached to the inner surface of the abutting elastic rings, the abutting and fixing of the inner ring and the main shaft are completed, the vibration under the rotation of the main shaft is reduced, the stable rotation of the bearing is maintained, the abrasion between the main shaft and the bearing is reduced, the abutting elastic rings are extruded and fixed by the pressing ring, the abutting elastic rings can be effectively kept under high elastic force, and the abutting elastic rings are durably and perfectly abutted and fixed with the main shaft.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile technology, in particular to a kind of automobile water pump impeller bearing device. BACKGROUND

[0002] With the development of urbanization, the four-way road in city is connected, and most of the roads are built into professional driving asphalt pavement. As a result, people's travel has gradually changed from walking out to using various transportation tools to travel. Electric vehicles, cars and the current popular shared bicycles have become the preferred transportation tools for people. Among them, the car is the most loved travel tool, which has the advantages of high travel comfort and strong protection effect.

[0003] The car drives the tire to rotate during driving, and the engine drives the tire to rotate to complete the driving. During the operation of the engine, the piston in the engine is continuously moved to work, and the rotation of the automobile driving shaft is completed. The working movement of the engine will generate a large amount of heat, so there is a water pump in the car to drive the cooling liquid in the car to circulate and complete the absorption of engine heat to maintain the working state of the car.

[0004] The automobile water pump contains impeller, main shaft, bearing and other working parts. The main function of the bearing is to fix the main shaft and the water pump shell, complete the lubrication between the main shaft and the shell. However, the existing bearing has the problem that the main shaft and the inner ring of the bearing cannot be completely matched when connecting the main shaft, which will cause the inner ring of the bearing to collide with the main shaft under high-speed rotation, affect the service life of the bearing, and cause the main shaft to generate noise and other conditions.

[0005] Therefore, it is necessary to provide a kind of automobile water pump impeller bearing device to solve the above technical problems. SUMMARY

[0006] To solve the above technical problems, the present application provides a kind of automobile water pump impeller bearing device, which has the function of completely matching the main shaft, keeps the main shaft rotating at the center of the bearing, and keeps the bearing continuously stable and matched with the surface of the main shaft.

[0007] The automobile water pump impeller bearing device provided by the present application comprises:

[0008] The outer ring and the inner ring are provided with a sealing guide ring sliding therebetween, the inner surface of the inner ring is provided with a plurality of equidistantly arranged matching elastic rings sliding thereon, the matching elastic rings are provided with a pressure ring sliding on the inner surface of the inner ring, one side of the pressure ring is provided with a locking ring, and the outer surface of the locking ring is threadedly screwed into the inner part of the inner ring.

[0009] Preferably, one side of the locking ring is provided with a dismounting cap, the dismounting cap is fixed with a plurality of clamping columns arranged in a ring shape on one side of the locking ring, and the locking ring is provided with a plurality of clamping holes corresponding to the clamping columns on one side of the dismounting cap.

[0010] Preferably, the outer surface of the locking ring and the inner surface of the locking ring are fixed with thread teeth.

[0011] Preferably, the fitting elastic ring is a square elastic ring, and the square elastic ring is externally fitted against the inner surface of the inner ring and the pressing ring.

[0012] Preferably, the outer surface of the outer ring is fixed with a fixing seat, and the fixing seat is provided with a plurality of thread fixing holes arranged in a ring shape at equal intervals.

[0013] Preferably, the dismounting cap has a hexagonal hollow structure.

[0014] Compared with the related art, the impeller bearing device of the automobile water pump provided by the application has the following advantages

[0015] Advantages:

[0016] 1、The inner ring is provided with a plurality of fitting elastic rings and a pressing ring, the main shaft penetrating the inner ring is fixed to the inner surface of the fitting elastic ring in a flexible manner, the inner ring and the main shaft are fixed, the vibration of the main shaft is reduced, the stable rotation of the bearing is maintained, the wear between the main shaft and the bearing is reduced, and the fitting elastic ring is pressed and fixed by the pressing ring, so that the fitting elastic ring maintains high elastic force and is fixed to the main shaft for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure schematic view of a preferred embodiment of the impeller bearing device of the automobile water pump provided by the application is shown in the figure;

[0018] Figure 2 A structure schematic view of a preferred embodiment of the impeller bearing device of the automobile water pump provided by the application is shown in the figure; Figure 1 A structure schematic view of a preferred embodiment of the impeller bearing device of the automobile water pump provided by the application is shown in the figure;

[0019] Figure 3 A structure schematic view of a preferred embodiment of the impeller bearing device of the automobile water pump provided by the application is shown in the figure; Figure 2 A structure schematic view of a preferred embodiment of the impeller bearing device of the automobile water pump provided by the application is shown in the figure;

[0020] Figure 4 A structure schematic view of a preferred embodiment of the impeller bearing device of the automobile water pump provided by the application is shown in the figure; Figure 3 A structure schematic view of a preferred embodiment of the impeller bearing device of the automobile water pump provided by the application is shown in the figure.

[0021] The figure label: 1, outer ring; 2, sealing guide ring; 3, inner ring; 4, fit elastic ring; 5, pressure ring; 6, locking ring; 7, dismounting cap; 8, clamping column; 9, clamping hole; 10, square elastic ring; 11, screw thread; 12, fixed seat. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0023] The specific implementation of the present application is described in detail below in combination with specific examples.

[0024] Please refer to the accompanying Figures 1-4 The impeller bearing device of the automobile water pump provided by the embodiment of the present application comprises:

[0025] The outer ring 1 and the inner ring 3 are connected with the sealing guide ring 2, the sliding member arranged in the form of annular equidistant distribution is slidingly connected inside the sealing guide ring 2, the outer surface of the sliding member is in sliding contact with the inner ring 3 and the outer ring 1 respectively, so that the inner ring 3 and the outer ring 1 have stable rotation effect, and the sealing guide ring 2 is used to seal the sliding member, so that the sliding member is kept in lubricated state, and the storage of lubricating oil and the entry of dust are facilitated.

[0026] The inner surface of the inner ring 3 is slidingly connected with a plurality of fit elastic rings 4, and the fit elastic ring 4 located on one side of the inner ring 3 is limited and in contact with one end of the inner ring 3, so that the fit elastic ring 4 inside the inner ring 3 is only fixed by unilateral pushing during installation and fixation, which facilitates the installation of the fit elastic ring 4 inside the inner ring 3 and is beneficial to the stable operation of the fit elastic ring 4. The fit elastic ring 4 is provided with the pressure ring 5 between each fit elastic ring 4, which facilitates the flexible deformation of the fit elastic ring 4 between the fit elastic ring 4 during the fixation of the fit elastic ring 4 by the locking ring 6, so that each fit elastic ring 4 has fixed deformation and is completely fixed with the water pump main shaft.

[0027] The dismounting cap 7 is arranged on one side of the locking ring 6, and the clamping column 8 is arranged on the outer surface of the locking ring 6 in a manner of corresponding and coinciding with the clamping hole 9, so as to drive the rotation of the locking ring 6, and the locking ring 6 is installed to the inner ring 3. During the process of applying pressure to the pressure ring 5 and the fit elastic ring 4, it is convenient to operate; at the same time, the locking ring 6 is rotated by the pressure ring 5, and after the pressure of the locking ring 6 and the fixation of the inner ring 3 are completed, the dismounting cap 7 is separated, so as to maintain the flatness of the external structure shape of the inner ring 3 and the locking ring 6.

[0028] The position where the locking ring 6 and the inner ring 3 are connected is connected with the threaded teeth 11, when the locking ring 6 is rotated and fixed by the dismounting cap 7, the external threaded teeth 11 of the locking ring 6 are rotated and engaged in the internal threaded teeth 11 of the inner ring 3, at the same time, in the process of rotating the external threaded teeth 11 of the locking ring 6, the locking ring 6 moves to one side of the pressing ring 5, and a pushing force is applied to the fitted elastic ring 4, so that the pressing ring 5 pushes and compresses the fitted elastic ring 4, the rubber material of the fitted elastic ring 4 is deformed, the fitted elastic ring 4 is extruded on the surface of the main shaft, the complete fitting and fixation of the inner ring 3 and the main shaft are completed, and when the fitted elastic ring 4 is deformed, the reverse pushing force is generated, the friction force between the external threaded teeth 11 of the locking ring 6 and the internal threaded teeth 11 of the inner ring 3 is generated, and the locking ring 6 continuously provides the fixed pushing force to the pressing ring 5.

[0029] The fitted elastic ring 4 is a square elastic ring 10, the external square corner of the square elastic ring 10 is fitted and contacted between the inner surface of the inner ring 3 and the pressing ring 5, the pressure applied by the pressing ring 5 to the square elastic ring 10 when extruding the square elastic ring 10 can be increased, and the fitting space and area of the square elastic ring 10 to the main shaft can be increased.

[0030] The fixed seat 12 is fixed on one side of the outer surface of the outer ring 1, so that in the process of installing the bearing outer ring 1, the fixed seat 12 can be used to fix the position of the shell connected with the main shaft of the water pump, and the external threaded fixing hole of the fixed seat 12 is convenient for the threaded bolt connected with the fixed seat 12 to be fixed.

[0031] The external structure of the dismounting cap 7 is a hexagonal hollow structure, so that in the process of driving and installing the locking ring 6 by the dismounting cap 7, the dismounting cap 7 is convenient to be driven and operated by the driving tool of the specified type, the use of the dismounting cap 7 is convenient, and the dismounting cap 7 is not limited to the hexagonal hollow structure.

[0032] Use process:

[0033] The automobile water pump impeller main shaft is arranged in the center of the inner ring 3, the fitted elastic ring 4 is embedded on one side of the inner ring 3 connected with the locking ring 6, the fitted elastic ring 4 is sleeved on the outer side of the main shaft and slides to the inner side of the inner ring 3, one fitted elastic ring 4 is put in, one pressing ring 5 is put in to separate the fitted elastic rings 4, when the inner ring 3 is filled with the fitted elastic rings 4 and the pressing rings 5, the locking ring 6 is sleeved on the outer side of the main shaft and slides to the edge of the inner ring 3, the dismounting cap 7 is sleeved on the outer side of the main shaft, the clamping column 8 of one side of the dismounting cap 7 is embedded in the clamping hole 9 on the outer surface of the locking ring 6, the dismounting cap 7 is rotated by using the tool of various types to drive the dismounting cap 7, the locking ring 6 connected with the dismounting cap 7 is engaged with the threaded teeth 11 of the inner ring 3 through the threaded teeth 11, the extrusion and pushing of the inner ring 3, the pressing ring 5 and the fitted elastic ring 4 are completed, the installation of the locking ring 6 is completed, the dismounting cap 7 is separated from the automobile water pump impeller main shaft, and the bearing installation and use are completed.

[0034] When the bearing is fixed, the fixed seat 12 is installed to the designated position of the water pump shell, bolts are passed through the threaded fixing holes in the fixed seat 12, and the water pump shell and the bearing are fixed.

[0035] The circuit and the control involved in the present application are prior art, and will not be described in detail here.

[0036] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A bearing device for the impeller shaft of a water pump for an automobile, comprising an outer ring (1) and an inner ring (3) between which a sealing guide ring (2) is slidably arranged, characterized in that, The inner surface of the inner ring (3) is in contact with the equidistantly arranged elastic rings (4) which slide in the inner surface of the inner ring (3), and a pressing ring (5) is arranged between the elastic rings (4) and slides in the inner surface of the inner ring (3), one side of the pressing ring (5) is provided with a locking ring (6), and the outer surface of the locking ring (6) is screwed into the inner part of the inner ring (3); One side of the locking ring (6) is provided with a dismounting cap (7), the side surface of the dismounting cap (7) connected with the locking ring (6) is fixed with annularly distributed clamping columns (8), one side of the dismounting cap (7) connected with the locking ring (6) is provided with clamping holes (9) corresponding to the clamping columns (8), and the clamping columns (8) are inserted into the inner side of the clamping holes (9). The outer surface of the locking ring (6) and the inner surface of the position of the inner ring (3) connected with the locking ring (6) are fixed with thread teeth (11), and the thread teeth (11) are mutually engaged.

2. A bearing assembly for an impeller shaft of an automotive water pump as defined in claim 1, wherein The elastic ring (4) is a square elastic ring (10), and the square elastic ring (10) is in contact with the inner surface of the inner ring (3) and the pressing ring (5) between the square corners.

3. A bearing assembly for an impeller shaft of an automotive water pump as defined in claim 1, wherein The outer surface of the outer ring (1) is fixed with a fixed seat (12), and the circumferential surface of the fixed seat (12) is provided with annularly equidistantly distributed threaded fixing holes.

4. The impeller bearing apparatus of claim 1, wherein The external structure of the dismounting cap (7) is a hexagonal hollow structure.

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