CN210565141U - Vertical pipeline pump - Google Patents

Abstract

A vertical pipeline pump relates to a pump, which comprises a pump body, a pump cover component, a guide bearing, an impeller, a shaft, a shell sealing ring, an impeller sealing ring, a bearing body component, a motor bracket and a mounting screw, and is characterized in that the impeller of the guide bearing at the tail part of the impeller of the vertical pipeline pump is independently mounted at the bottom of the pump, the throat part of the pump cover is provided with a guide bearing positioning structure, and the guide bearing is in sliding fit with the shaft; the pump bearing body part adopts a back-to-back mounting structure form of two angular contact ball bearings. The utility model discloses can bear and restrict the produced swing problem of impeller at high-speed rotatory in-process, reduce pump vibration index, the accurate vertical position that keeps can bear the radial force that probably appears in the pump again simultaneously to make the pump operate steadily, prolong sealed life, solve the serious phenomenon of pump internals wearing and tearing. The vertical pipeline pump is particularly suitable for continuous operation for many years, heavy load and high speed, and is applied to places such as pipeline transportation in petrochemical industry and the like.

Description

Vertical pipeline pump

Technical Field

The utility model relates to a pump especially relates to a vertical tubing pump.

Background

The vertical pipeline pumps used in the petrochemical industry in China are more and are mainly used for conveying media in tanks in tank areas. The vertical pipeline pump impeller commonly used at present all is located the centrifugal pump bottom, and at high-speed operation in-process can lead to the impeller to have great radial swing under the effect of impeller radial force to arouse that pump vibration aggravation, mechanical seal are inefficacy and a plurality of parts wearing and tearing are serious in the pump, can't satisfy long period uninterrupted operation. In order to solve this problem, it is necessary to develop an improvement of the existing vertical type pipe pump.

Disclosure of Invention

An object of the utility model is to provide a vertical tubing pump, the utility model discloses the impeller is independently installed in the bottom of pump, and pump cover throat position is for leading bearing location structure to bear and restrict the produced swing problem of impeller at high-speed rotatory in-process, reduce pump vibration index, the accurate vertical position that keeps can bear the radial force that probably appears in the pump again simultaneously, thereby make the pump operate steadily, prolong sealed life, solve the serious problem of pump internals wearing and tearing.

The utility model aims at realizing through the following technical scheme:

a vertical pipeline pump comprises a pump body, a pump cover component, a guide bearing, an impeller, a shaft, a shell sealing ring, an impeller sealing ring, a bearing component, a motor support and a mounting screw, wherein the impeller of the guide bearing at the tail part of the impeller of the vertical pipeline pump is independently mounted at the bottom of the pump, the throat part of the pump cover is provided with a guide bearing positioning structure, and the guide bearing is in sliding fit with the shaft; the pump bearing body part adopts a back-to-back mounting structure form of two angular contact ball bearings.

The guide bearing is in a lantern ring shape and is embedded and sleeved on the shaft.

According to the vertical pipeline pump, the end face of the guide bearing is abutted to the baffle.

According to the vertical pipeline pump, the baffle is fixed on the pump body through the screw.

The utility model has the advantages and effects that:

1. the utility model discloses the impeller is independently installed in the bottom of pump, and pump cover throat position changes guide bearing location structure into, utilizes the clearance of guide bearing and axle to reduce at the produced swing problem of high-speed operation in-process, reduce pump vibration index, the accurate vertical position that keeps supports, supports the main shaft, can bear the radial force that probably appears in the pump again simultaneously, thereby makes the pump operate steadily, prolongs sealed life, solves the serious phenomenon of pump internals wearing and tearing.

2. The utility model discloses pump bearing body part adopts two radial thrust ball bearing structures back to back, reduces the overall length of pump, effectively reduces the installation space of pump.

Drawings

Fig. 1 is a schematic structural view of a vertical pipe pump according to the present invention;

fig. 2 is the enlarged schematic view of the structure of the guide bearing at the tail part of the impeller of the vertical pipeline pump.

Detailed Description

The present invention will be described in detail with reference to the embodiments shown in the drawings.

As shown in the figure, the utility model relates to a vertical pipeline heart pump, include by the pump body 1, pump cover part 2, guide bearing 3, impeller 4, axle 5, casing seal ring 6, impeller seal ring 7, bearing body part 8, motor support 9, mounting screw 10 etc. and constitute.

The vertical pipeline pump comprises a shell, a pump cover part and the like, wherein a guide bearing is installed at the throat part of the pump cover part, and the pump body and the pump cover part bear all working pressure of the pump. The rotor part consists of an impeller, a shaft and an impeller nut. The axial force is balanced by the balance hole of the impeller. The transmission part is connected by a pump and a motor by a diaphragm coupling. The pump bearing body part adopts a back-to-back structure of two radial thrust ball bearings. The radial thrust ball bearing bears axial and radial loads, and the bearing is lubricated by thin oil. An oil window for observing the oil level and an automatic oil-supplementing oil cup are arranged on the pump bearing body.

The impeller is independently arranged at the bottom of the pump, the throat position of the pump cover is a guide bearing positioning structure, and the gap between a guide bearing and a shaft is utilized to reduce the swing problem generated in the high-speed operation process, reduce the vibration index of the pump, accurately keep the vertical position, support the main shaft, bear the radial force possibly generated in the pump and ensure the stable operation of the pump. The guide bearing is in a lantern ring shape, is embedded and sleeved on the shaft, and the end face of the guide bearing is propped against the baffle. The baffle is fixed on the pump body through screws. The pump bearing body part adopts a back-to-back structure of two angular contact ball bearings, so that the overall length of the pump is reduced, and the installation space of the pump is reduced.

Claims (4)

1. A vertical pipeline pump comprises a pump body, a pump cover component, a guide bearing, an impeller, a shaft, a shell sealing ring, an impeller sealing ring, a bearing component, a motor support and a mounting screw, and is characterized in that the impeller of the guide bearing at the tail part of the impeller of the vertical pipeline pump is independently mounted at the bottom of the pump, the throat part of the pump cover is a guide bearing positioning structure, and the guide bearing is in sliding fit with the shaft; the pump bearing body part adopts a back-to-back mounting structure form of two angular contact ball bearings.

2. The vertical pipe pump according to claim 1, wherein said guide bearing is in the form of a collar fitted over the shaft.

3. The vertical tube pump as claimed in claim 2, wherein the guide bearing end surface abuts against the stopper.

4. The vertical tube pump according to claim 3, wherein said baffle is fixed to the pump body by screws.

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