CN212177484U - Bearing lubricating and cooling device for pitot tube pump - Google Patents

Abstract

The utility model discloses a bearing lubricating and cooling device for a pitot tube pump, which comprises a bearing seat, a pressure cover, a drive end and a non-drive end bearing sleeve seat, the bottom side of the bearing seat is provided with a cooling inlet and a cooling outlet, A cooling pipe is installed, and the cooling pipe is arranged in the lubricating oil in the bearing box. The axial and radial flow paths of the cooling pipe from the cooling inlet to the cooling outlet are in a high-to-low flow direction, and the cooling outlet is located in the flow path. At the lowest position, the cooling inlet and cooling outlet are designed to be high in and low out. During installation, the overall inclination towards the gland outlet will form a gravity difference. When condensing in winter, open the nozzle and use gravity to directly drain the cooling water to prevent water from remaining. Freeze in tube.

Description

A bearing lubrication cooling device for pitot tube pump

technical field

The utility model belongs to the technical field of fluid pumps, in particular to a bearing lubricating cooling device for a pitot tube pump.

Background technique

Pitot tube pump is composed of main parts such as pump body, diversion assembly, mechanical seal assembly, pitot tube, shaft, impeller, rotating shell, bearing box, etc. The rotating parts composed of shaft, rotating shell and impeller are connected with the bearing box through bearings. When the pitot tube pump is working, due to the high-speed rotation of the pump shaft, a large amount of heat will be generated inside it, and the inside of the pitot tube pump will also be worn, which is easy to cause damage to the pitot tube pump and affect its service life.

The current pitot tube pump usually adopts the following two methods in terms of lubrication and cooling:

One is to open the view port above the bearing seat, and the inlet and outlet of the cooling pipe are located above the bearing seat. On the one hand, the cooling efficiency is not high, and on the other hand, it is not conducive to the cold climate in the north, and the cooling water cannot be drained. cracks, resulting in mechanical failure and bearing damage.

Second, the oil slinger is used. However, when the pitot tube pump is transporting high temperature medium or the pitot tube pump is heavy-loaded and prone to vibration, the oil slinger ring is easy to fall off and fail, the lubricating oil cannot be cooled well, and the reliability is poor.

Utility model content

In view of the above problems, the present utility model aims to provide a bearing lubricating and cooling device for a pitot tube pump.

In order to achieve the technical purpose, the scheme of the present utility model is: a bearing lubricating and cooling device for a pitot tube pump, comprising a bearing seat, a gland, a drive end and a non-drive end bearing housing, which is mainly characterized in that: the The bottom side of the bearing seat is provided with a cooling inlet and a cooling outlet, and a cooling pipe is installed. The cooling pipe is arranged in the lubricating oil in the bearing housing, and the cooling pipe is formed from the cooling inlet to the cooling outlet. The axial and radial flow paths are formed. In the flow direction from high to low, the position of the cooling outlet is at the lowest position of the flow path; the pump shafts of the driving end and the non-driving end are provided with an oil slinger sleeve, and the oil slinger sleeve is provided with an oil slinger, The oil throwing ring sleeve seat is also provided with a boss which is in direct contact with the inner ring of the bearing, and the other side of the oil throwing ring sleeve seat is connected and positioned with the pump shaft step.

Preferably, the bottom of the bearing seat is provided with a step at a position away from the outlet side, the axial direction is upward, from the non-driving end to the driving end, and the steps are arranged in a gradient of 8-10 degrees.

Preferably, the oil slinger ring is provided with several grooves to meet the lubrication and cooling effects of the bearing at different temperatures.

Preferably, the cooling pipe is a metal coil, the cooling pipe is connected to the gland through a pipe joint, and the end face is sealed with a gasket or an O-ring to seal the lubricating oil.

The beneficial effects of the present utility model,

1. The cooling inlet and cooling outlet are designed to be high in and low out. During installation, they are inclined to the direction of the gland outlet to form a gravity difference, and they are matched with the steps at the bottom of the bearing seat. The support is stable, not easy to shake, and the cooling and heat exchange efficiency is high. When condensing, open the nozzle and use gravity to directly drain the cooling water to prevent the water from freezing in the pipe.

2. The oil slinging structure is designed on the driving end and the non-driving end. The boss on the oil ring sleeve is designed to be in direct contact with the inner ring of the bearing, and the other side is positioned with the shaft step, which is not easy to slide and fall off, and has good stability. And the heat dissipation effect is designed with grooves to meet the lubrication and cooling effect of the bearing at different temperatures.

Description of drawings

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a schematic structural diagram of a cooling pipe of the present invention.

Detailed ways

The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figure 1, the specific embodiment described in the present utility model is:

A bearing lubricating and cooling device for a pitot tube pump, comprising a bearing seat 1, a gland 2, a drive end and a non-drive end bearing housing, the bottom side of the bearing seat 1 is provided with a cooling inlet 3 and a cooling outlet 4, And a cooling pipe 5 is installed, the cooling pipe 5 is arranged in the lubricating oil in the bearing housing 6, the bearing lubrication efficiency is high, and the bearing operating temperature is low, the cooling pipe 5 flows axially and radially from the cooling inlet 3 to the cooling outlet 4 The paths are all in a high-to-low flow direction. The cooling outlet 4 is located at the lowest position of the flow path. The cooling inlet 3 and the cooling outlet 4 are designed to be high in and low out. During installation, the overall inclination towards the outlet of the gland 2 forms a gravity difference. When condensate is discharged in winter, open the nozzle and use gravity to directly discharge the condensate to prevent the water from freezing in the pipe.

The pump shaft 7 of the driving end and the non-driving end is provided with an oil slinger sleeve 8, the oil slinger sleeve 8 is provided with an oil slinger 9, and the oil slinger sleeve 8 is also provided with There is a boss that is in direct contact with the inner ring of the bearing, the other side of the oil slinger sleeve 8 is connected to the pump shaft 7 in steps, the oil slinger is not easy to slide and fall off, and the stability is good. Grooves to meet the lubrication and cooling effects of bearings at different temperatures.

The bottom of the bearing seat 1 is provided with a step away from the outlet side, the axial direction is upward, from the non-driving end to the driving end, the step is arranged in a slope of 8~10 degrees, the support is stable, it is not easy to shake, and the cooling and heat exchange efficiency is high. ,

The cooling pipe 5 is a metal coil, the cooling pipe 5 is connected with the gland 2 through a pipe joint, and the end face is sealed with a gasket or an O-ring to seal the lubricating oil.

This patent adopts the direct connection between the intermediate coupling sleeve and the motor drive shaft, cancels the traditional coupling, adopts the method of equipping the frequency conversion motor, expands the range of the pump type spectrum, and achieves the technical characteristics of high efficiency and energy saving, simple structure and low operation and maintenance cost. Advanced technology.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any minor modifications, equivalent replacements and improvements made to the above embodiments according to the technical essence of the present invention shall be included in the within the protection scope of the technical solution of the present invention.

Claims (4)

1. A bearing lubricating and cooling device for a pitot tube pump, comprising a bearing seat and a gland, a drive end and a non-drive end bearing housing, characterized in that: the bottom side of the bearing seat is provided with a cooling inlet and a cooling outlet , and a cooling pipe is installed. The cooling pipe is arranged in the lubricating oil in the bearing box. The axial and radial flow paths of the cooling pipe from the cooling inlet to the cooling outlet are in a high-to-low flow direction, and the cooling outlet is flowing. The lowest position of the path; the pump shafts of the driving end and the non-driving end are provided with oil slinger bushings, the oil slinging ring bushings are provided with oil slinging rings, and the oil slinging ring bushings are also provided with The boss in direct contact with the inner ring of the bearing, the other side of the oil throwing ring sleeve is connected and positioned with the step of the pump shaft. 2. A bearing lubricating and cooling device for a pitot tube pump according to claim 1, wherein the bottom of the bearing seat is provided with a step away from the outlet side, the axial direction is upward, and the non-driving end To the driving end, the steps are arranged with a gradient of 8-10 degrees. 3 . The bearing lubricating and cooling device for a pitot tube pump according to claim 1 , wherein the oil slinger ring is provided with a plurality of grooves to meet the lubrication and cooling effects of the bearing at different temperatures. 4 . 4. A bearing lubricating and cooling device for a pitot tube pump according to claim 1, wherein the cooling pipe adopts a metal coil, and the cooling pipe is connected with the gland through a pipe joint, and the end surface of the cooling pipe is a metal coil. Use gaskets or O-rings to seal the oil.

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