TW201708727A - Pump bearing structure having an inner axle sleeve integrally provided with a first slant penetration hole extending from top surface to bottom surface for allowing an easy installation to the rotation axle of a motor - Google Patents

Abstract

A pump bearing structure includes an inner axle sleeve and an outer axle sleeve. The inner axle sleeve is provided with a first top surface and a first bottom surface. The first top surface and the first bottom surface are parallel with each other, and the center of the inner axle sleeve is defined as an axial direction. The inner axle sleeve is integrally provided with a first slant penetration hole extending from the first top surface to the first bottom surface, wherein the extending direction of the first slant penetrating hole is slanted with respect to the axial direction of the inner axle sleeve, so as to define a slant angle. In addition, the outer axle sleeve is arranged on the external circumference of the inner axle sleeve and is rotatable with respect to the inner axle sleeve, and a plurality of rolling members are arranged between the outer axle sleeve and the inner axle sleeve.

Description

Pump bearing structure

The invention relates to a pump bearing structure, and more particularly to a pressurized pump bearing.

The structure of the conventional pressure pump is as shown in FIG. 8 , and the top sheet 73 which is disposed on a driving rod 72 with respect to the rotating shaft 71 of a motor is reciprocated when driven by the rotating shaft 71. The axial displacement is thereby used to create a pressurization effect on the flow of water flowing through the pump. In order to prevent the driving rod 72 or the top sheet 73 from being disposed obliquely with respect to the rotating shaft 71, the rotating shaft 71 needs to be sleeved with a joint 74, and the joint 74 is connected to a bearing 75. The bearing 75 is connected to the bearing 75. It is connected to each of the drive rods 72. The shaft hole 741 of the adapter 74 is a slanting hole offset from the axial center thereof, and is biased after being sleeved on the rotating shaft 71, thereby making the bearing 75 and the driving rod connected to the adapter 74. 72 and the topsheet 73 are also associated with deflection.
The above-mentioned adapter 74 is usually a plastic product. Under the high-speed rotation of the rotating shaft 71, the adapter 74 is easily worn to reduce the tightness between the rotating shaft 71 and the rotating shaft 71, so that it is difficult to accurately transmit the rotation of the rotating shaft 71. It affects the performance of the pressurized pump. Moreover, the installation of the adapter 74 will result in an increase in the number of components, so that the wear and leakage opportunities between the components will also be intensified, so that the maintenance cost is increased, and there is a need for improvement.

The main object of the present invention is to provide a pump bearing structure in which a slanting perforation is integrally provided in a bushing of a bearing, so that it is directly disposed on a rotating shaft of a motor, and has a simplified structure.
To achieve the foregoing objects, the present invention provides a pump bearing structure including:
An inner sleeve having a first top surface and a first bottom surface, the first top surface and the first bottom surface being parallel to each other, and defining an axial direction at a center of the inner sleeve;
a first oblique through hole is integrally formed in the inner sleeve and penetrates from the first top surface to the first bottom surface; the extending direction of the first oblique through hole is opposite to the axial direction of the inner sleeve and defines a tilt angle;
An outer sleeve is disposed on the outer circumference of the inner sleeve and rotatable relative to the inner sleeve, and a plurality of rolling members are disposed between the outer sleeve and the inner sleeve. The first oblique through hole includes an arc portion and a flat portion.
Further, in another embodiment, the flat portion of the first oblique through hole is further recessed with a groove extending along the extending direction of the first oblique through hole.
Furthermore, the first bottom surface of the inner sleeve is provided with a pad body having a second top surface and a second bottom surface, and the second top surface is inclined relative to the second at an angle corresponding to the tilt angle Bottom surface.
The above objects and advantages of the present invention will be readily understood from the following detailed description of the embodiments of the invention.

1‧‧‧Inner bushing 11‧‧‧Top surface 12‧‧‧First bottom surface 13‧‧‧First oblique perforation 131‧‧‧ Curved section 132‧‧‧ Flat section 133‧‧‧ Groove 2‧‧ ‧Outer bushings 3‧‧‧Rolling parts 41‧‧‧Rotary shaft 42‧‧‧Drive rods 43‧‧‧Top piece 5‧‧‧Rotary shaft 6‧‧‧Fixed pin C1‧‧‧Axial C2‧‧‧ central axis 71‧‧‧Rotary shaft 72‧‧‧Drive rod 73‧‧‧Top piece 74‧‧‧Adapter 75‧‧‧Bearing 8‧‧‧Cushion 81‧‧‧Second oblique perforation 82‧‧‧Second top Face 83‧‧‧Second bottom surface θ‧‧‧ tilt angle

Figure 1 is a perspective view of a first embodiment of the present invention;
Figure 2 is a schematic cross-sectional view showing a first embodiment of the present invention;
Figure 3 is a schematic cross-sectional view showing the first embodiment of the present invention mounted on a pressurized pump;
Figure 4 is a perspective view of a second embodiment of the present invention;
Figure 5 is a schematic cross-sectional view showing a second embodiment of the present invention mounted on a pressurized pump;
Figure 6 is a perspective view of a third embodiment of the present invention;
Figure 7 is a perspective view showing the third embodiment of the present invention in combination with a motor shaft;
Figure 8 is a schematic cross-sectional view of a conventional pressurized pump.

Referring to Figures 1 and 2, there is shown a first embodiment of a pump bearing structure provided by the present invention, comprising an inner sleeve 1 and an outer sleeve 2, wherein the outer sleeve 2 is disposed The inner sleeve 1 has an outer circumference and is rotatable relative to the inner sleeve 1. A plurality of rolling members 3 are disposed between the outer sleeve 2 and the inner sleeve 1, for reducing the friction between the outer sleeve 2 and the inner sleeve 1, so as to facilitate relative rotation between the two sleeves.
The inner sleeve 1 has a first top surface 11 and a first bottom surface 12. In the embodiment, the first top surface 11 and the first bottom surface 12 are parallel to each other, and the center of the inner sleeve 1 is defined. There is an axial direction C1, wherein the axial direction C1 is perpendicular to the top surface 11 and the bottom surface 12 at the same time.
A first oblique through hole 13 is integrally formed in the inner sleeve 1 , and the first oblique through hole 13 extends from the first top surface 11 to the first bottom surface 12 and defines a central axis C2 for indicating the The direction in which the oblique perforation 13 extends, wherein the central axis C2 is relatively inclined to the axial direction C1 of the inner sleeve 1; in other words, the extending direction of the first oblique perforation 13 and the axial direction C1 define an inclination angle θ.
In addition, in the embodiment, the shape of the first oblique through hole 13 includes an arc portion 131 and a flat portion 132. When the shaft is assembled with a shaft corresponding to a shape, the flat portion 132 generates a tilting shaft. The rotation of the rotating shaft can drive the inner sleeve 1 to rotate synchronously.
When the bearing structure of the present invention is assembled on the pressurized pump, as shown in FIG. 3, the rotating shaft 41 of the motor is assembled in the first oblique through hole 13 of the inner sleeve 1, because the first oblique through hole 13 is biased. The slanting shape directly deflects the integral bearing relative to the rotating shaft 41, so that the driving rod 42 and the top piece 43 assembled on the bearing of the present invention are also skewed relative to the rotating shaft 41. Accordingly, when the rotating shaft 41 rotates, the inner sleeve 1 rotates yaw, so that the driving rod 42 and the top sheet 43 form a reciprocating displacement, thereby pressurizing the flow of water flowing through the pump. Compared with the conventional structure, the present invention can simplify the component arrangement of the adapter, and at the same time improve the wear and water leakage between the components after the number of components is reduced.
The figure shown in Fig. 4 is the second embodiment of the present invention. The present embodiment is based on the first embodiment, and a pad body 8 is disposed on the first bottom surface 12 of the inner sleeve 1. The pad body 8 has a second top surface 82 and a second bottom surface 83. And a second oblique through hole 81 is penetrated. The second top surface 82 of the pad body 8 abuts against the first bottom surface 12 of the inner sleeve 1, and the second top surface 82 is opposite to the second bottom surface 83, and defines the second top surface 82 and the The angle between the second bottom surface 83 corresponds to the angle θ between the central axis C2 of the first oblique through hole 13 and the axial direction C1. According to this configuration, the state of being assembled on the pressure pump is as shown in FIG. 5, and the second top surface 82 of the cushion body 8 and the second bottom surface 83 are relatively inclined, and are properly placed on the pad. Between the inner sleeve 1 and the motor, the inner sleeve 1 is supported to facilitate the stability of its rotation.
The figure shown in Fig. 6 is the third embodiment of the present invention. This embodiment is based on the first embodiment described above, but differs from the first embodiment described above in the structure of the first oblique perforation. In the embodiment, the flat portion 132 of the first oblique through hole 13 is further recessed with a groove 133 extending along the extending direction of the first oblique through hole 13. The motor shaft 5 assembled in the embodiment, as shown in FIG. 7 , also has a groove 51 corresponding to the groove 133 , and after the shaft 5 is assembled to the first oblique hole 13 . The groove 51 and the groove 133 together form a through hole, and a fixing pin 6 is embedded in the insertion hole, so that the rotating shaft 5 and the inner sleeve 1 are integrally fixed, so that the rotating shaft 5 can be The inner sleeve 1 is driven to rotate.
The disclosure of the above embodiments is intended to be illustrative of the invention and is not intended to limit the invention.
In summary, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objectives and is in accordance with the provisions of the Patent Law.

1‧‧‧ inner bushing

12‧‧‧ first bottom surface

2‧‧‧Outer bushing

C1‧‧‧ axial

11‧‧‧First top surface

13‧‧‧First oblique perforation

3‧‧‧Rolling parts

C2‧‧‧ central axis

Claims (4)

A pump bearing structure includes:
An inner sleeve having a first top surface and a first bottom surface, the first top surface and the first bottom surface being parallel to each other, and defining an axial direction at a center of the inner sleeve;
a first oblique through hole is integrally formed in the inner sleeve and penetrates from the first top surface to the first bottom surface; the extending direction of the first oblique through hole is opposite to the axial direction of the inner sleeve and defines a tilt angle;
An outer sleeve is disposed on the outer circumference of the inner sleeve and rotatable relative to the inner sleeve, and a plurality of rolling members are disposed between the outer sleeve and the inner sleeve. The pump bearing structure of claim 1, wherein the first oblique perforation comprises an arc portion and a flat portion. The pump bearing structure of claim 2, wherein the flat portion of the first oblique perforation is further recessed with a groove extending along the extending direction of the first oblique perforation. The pump bearing structure of claim 1, wherein the first bottom surface of the inner sleeve is provided with a pad body, the pad body has a second top surface and a second bottom surface, and the second top surface is opposite The angle of the angle of inclination should be relatively inclined to the second bottom surface.