Bearing chamber for vertical pump

Abstract

The present invention discloses a bearing chamber for a vertical pump, which comprises a vertical bearing chamber cavity provided with a stepped hole. It is characterized in that more than two bearing outer ring supporting rib plates protruding inward are fixedly connected at intervals on the inner wall of the bearing chamber cavity. Each bearing outer ring supporting rib plate includes a radial supporting block provided with an inner arc surface and a longitudinal supporting step fixedly connected to the lower end of the radial supporting block. The inner end of the longitudinal supporting step is located inside the inner arc surface, and both side surfaces of the radial supporting block are inclined surfaces at a certain angle with the vertical direction. The present invention can increase the contact between the lubricating oil and the inner wall of the bearing chamber and the bearing outer ring, greatly improve the lubrication and heat dissipation effects, and increase the oil storage space, so as to ensure the normal operation of the pump for a long time.

Description

Technical Field

[0001] The present invention relates to a bearing chamber, especially for a vertical pump. Background Art

[0002] Currently, whether it is a bearing chamber for a vertical pump or a horizontal pump, an integral bearing seat is provided inside to support the outer ring of the bearing on the pump shaft. However, for a vertical pump, there is a lubricating oil pool below the bearing seat, and its disadvantages are as follows: Due to the blocking effect of the integral bearing seat, the lubricating oil lifted during operation is difficult to contact the inner wall of the bearing chamber and the bearing seat above it, which is not conducive to heat dissipation. Prolonged operation will affect the normal operation of the pump, and the oil storage space of the bearing chamber is also limited, which also reduces the lubrication and heat dissipation effects. Summary of the Invention

[0003] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art and provide a bearing chamber for a vertical pump, which can increase the contact between the lubricating oil and the inner wall of the bearing chamber and the outer ring of the bearing, greatly improve the lubrication and heat dissipation effects, and increase the oil storage space to ensure the normal operation of the pump for a long time.

[0004] To achieve the above purpose, the bearing chamber for a vertical pump of the present invention includes a vertical bearing chamber cavity provided with a stepped hole, and is characterized in that two or more inwardly protruding bearing outer ring support ribs are fixedly connected at intervals on the inner wall of the bearing chamber cavity. Each bearing outer ring support rib includes a radial support block provided with an inner arc surface and a longitudinal support step fixedly connected to the lower end of the radial support block. The inner end of the longitudinal support step is located inside the inner arc surface, and both side surfaces of the radial support block are inclined surfaces at a certain angle to the vertical direction.

[0005] During use, the outer ring of the bearing is arranged on the longitudinal support step, and its outer circle cooperates with the radial support block, so that the horizontal forces in all directions of the vertical bearing chamber are evenly distributed. When the bearing rotates, the splashed lubricating oil can contact the inner wall of the bearing chamber and the outer ring of the bearing through the gap between adjacent bearing outer ring support ribs, and at the same time flow along the inclined side surface of the radial support block, increasing the contact time with the wall surface, which is conducive to heat dissipation and lubrication. By using spaced bearing outer ring support ribs, the oil storage space can be increased to ensure the normal operation of the pump for a long time;

[0006] As a further improvement of the present invention, the inclined directions of both side surfaces of the radial support block are the same; the oil storage space can be increased as much as possible under the condition of ensuring strength;

[0007] As a further improvement of the present invention, the angle between both side surfaces of the radial support block and the vertical direction is greater than 30°; a larger angle can extend the contact time between the lubricating oil and the wall surface;

[0008] As a further improvement of the present invention, the number of the bearing outer ring support ribs is an even number of four or more and is evenly distributed on the circumference; the forces and lubrication in all directions can be made uniform;

[0009] In summary, the present invention can increase the contact between the lubricating oil and the inner wall of the bearing chamber and the outer ring of the bearing, greatly improve the lubrication and heat dissipation effects, and increase the oil storage space to ensure the normal operation of the pump for a long time. Description of the Drawings

[0010] Figure 1 It is the front view of the embodiment of the present invention.

[0011] Figure 2 is Figure 1 the A-A cross-sectional view of Detailed Embodiment

[0012] The present invention will be further described in detail below with reference to the drawings.

[0013] As Figure 1 , Figure 2 shown, the bearing chamber 1 for a vertical pump includes a vertical bearing chamber cavity 2 provided with a stepped hole. Four bearing outer ring support ribs 3 protruding inward are integrally fixed to the inner wall of the bearing chamber cavity 2 at intervals. The four bearing outer ring support ribs 3 are evenly distributed in the circumferential direction. Each bearing outer ring support rib 3 includes a radial support block 4 provided with an inner arc surface and a longitudinal support step 5 integrally fixed to the lower end of the radial support block 4. The inner end of the longitudinal support step 5 is located inside the inner arc surface. Both side surfaces 6 and 7 of the radial support block 4 are inclined surfaces at a certain angle to the vertical direction, and the inclination directions of both side surfaces 6 and 7 are the same, and the angle α with the vertical direction is greater than 30°.

[0014] During use, the outer ring of the bearing is arranged on the longitudinal support step 5, and its outer circle is matched with the inner arc surface of the radial support block 4. Compared with the horizontal bearing chamber, the horizontal forces in all directions of the vertical bearing chamber are uniform, and the spaced bearing outer ring support ribs 3 can be adopted, and its strength can be guaranteed; when the bearing rotates, the splashed lubricating oil can contact the inner wall of the bearing chamber and the outer ring of the bearing through the gap between adjacent bearing outer ring support ribs 3, and at the same time flow along the inclined side surface of the radial support block 4, increasing the contact time with the wall surface of the bearing chamber cavity 2 and greatly improving the lubrication and heat dissipation effects; adopting the spaced bearing outer ring support ribs 3 can increase the oil storage space and ensure the normal operation of the pump for a long time;

[0015] The larger angle α can extend the contact time between the lubricating oil and the wall surface; the bearing outer ring support ribs 3 are evenly distributed in the circumferential direction, so that the forces and lubrication in all directions are uniform.

Claims

1. A bearing chamber for a vertical pump, comprising a vertical bearing chamber cavity provided with a stepped hole. It is characterized in that two or more inwardly protruding bearing outer ring support rib plates are fixedly connected to the inner wall of the bearing chamber cavity at intervals. Each bearing outer ring support rib plate includes a radial support block provided with an inner arc surface and a longitudinal support step fixedly connected to the lower end of the radial support block. The inner end of the longitudinal support step is located inside the inner arc surface, and both side surfaces of the radial support block are inclined surfaces at a certain angle to the vertical direction.

2. The bearing chamber for a vertical pump according to claim 1, It is characterized in that the inclination directions of both side surfaces of the radial support block are the same.

3. The bearing chamber for a vertical pump according to claim 1 or 2, It is characterized in that the angle between both side surfaces of the radial support block and the vertical direction is greater than 30°.

4. The bearing chamber for a vertical pump according to claim 3, It is characterized in that the number of the bearing outer ring support rib plates is an even number of four or more and they are evenly distributed on the circumference.

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