CN205423283U - Axle bush locking structure for magnetic drive pump - Google Patents

Abstract

The utility model relates to an axle bush locking structure for magnetic drive pump belongs to the magnetic drive pump field. The utility model discloses an axle bush locking structure, include: axle sleeve, axle bush, bearing frame, prevent changeing gasket, screw, stop pin, wherein, the inboard and inboard processing stop pin hole of bearing frame of axle bush, the axle bush outside and the processing of the bearing frame outside have corresponding echelonment breach, the stop pin inserts inboard stop pin hole of axle bush and the inboard stop pin of bearing frame simultaneously, the echelonment breach department that corresponds on every group axle bush and the bearing frame has all put and has prevented changeing the gasket, and it is fixed that the screw passes on the locating screw holes that prevents changeing the gasket and the bearing frame terminal surface of echelonment breach, makes to prevent changeing the gasket and compress tightly, realizes axial, the circumference dual positioning of two axle bushes and bearing frame. The utility model discloses an axle bush locking structure has thoroughly solved the axle bush rotation phenomenon that magnetic drive pump operation in -process probably appears.

Description

A kind of magnetic drive pump bearing shell locking mechanism

Technical field

This utility model relates to a kind of magnetic drive pump bearing shell locking mechanism, belongs to magnetic drive pump field.

Background technology

Magnetic drive pump is with the basic theories of modern magnetics, applies magneticaction produced by permanent magnet material or electric magnet to realize a kind of technology of non contact transmission moment of torsion.Magnetic drive pump is when drive disk assembly transmission moment of torsion, and the driven shaft discord external world contacted with medium is connected, so magnetic drive pump can accomplish zero leakage.Wherein the rotation of driven shaft is dependent on what the fluid friction of slide bearing assembly realized.

The structure of conventional slide bearing assembly is as it is shown in figure 1, mainly include axle sleeve 3, bearing shell 2, thrust ring 1.

Operationally, axle sleeve 3 is arranged on driven shaft 5, and bearing shell 2 is fixed on bearing block 1, relies on the fluid friction between axle sleeve 3 and bearing shell 2, by driven shaft 5 by moment of torsion synchronism output.In the course of the work, once bearing shell 2 occurs relatively rotating in bearing block 1, may result in bearing block 1 and is worn, and driven shaft 5 cannot smoothly transmit moment of torsion.In conventional slide bearing assembly, it is to make bearing shell 2 fix with bearing block 1 by radially installation pin 4, plays the effect of anti-rotation and location, but the difficulty of the method processing and assembling is relatively greatly, and bearing shell is non-metallic material, easily occurs rupturing in boring procedure.

Utility model content

The purpose of this utility model is the problem big with assembly difficulty in order to solve the processing of the locking mechanism of conventional slide bearing assembly intermediate bushing, and proposes a kind of magnetic drive pump bearing shell and locking mechanism thereof.

The purpose of this utility model is achieved through the following technical solutions.

A kind of magnetic drive pump bearing shell locking mechanism that the utility model proposes, including: axle sleeve, bearing shell, bearing block, anti-rotation pad, screw, stop pin；Wherein, bearing shell inner side end is machined with anti-rotation pin-and-hole, has more than one stepped breach at the outer of bearing shell end face outside；Axially have anti-rotation pin-and-hole on the bearing position inner side end of bearing block, outside the bearing position of bearing block in have more than one stepped breach along place, each stepped indentation, there on bearing block axially has positioning screw hole；Stepped breach on bearing shell matches with the degree of depth and the circle distribution position of the stepped breach on bearing block；The laminated structure that in the cavity that anti-rotation pad is profile to be surrounded with the stepped breach on one group of bearing shell and the stepped breach on bearing block, shape matches, anti-rotation pad has screw and passes through hole；

Axle sleeve is arranged on the bearing position of driven shaft, and bearing block is all inserted with stop pin in the anti-rotation pin-and-hole of two bearing position inner side ends；Two bearing shells are separately mounted to two bearing positions of bearing block, and make the stop pin of two bearing position inner side ends of insertion bearing block be inserted simultaneously into the anti-rotation pin-and-hole inside bearing shell, realizing two bearing shells and bearing block circumferential registration, now the stepped breach outside two bearing shells is the most corresponding with the stepped breach outside bearing block；Anti-rotation pad all it is placed with in the cavity that often the stepped breach on group bearing shell and the stepped breach on bearing block surround, screw through the positioning screw hole of anti-rotation pad with on bearing block the end face of stepped breach fix, anti-rotation pad is made to compress, it is achieved two bearing shells and axial, the circumference Dual positioning of bearing block.

Beneficial effect

Bearing shell locking mechanism of the present utility model, simple in construction, locking effect is reliable, thoroughly solves the locking mechanism processing of the bearing shell rotation phenomenon being likely to occur in magnetic drive pump operation process and conventional slide bearing assembly intermediate bushing and the problem that assembly difficulty is big.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of tradition bearing shell locking mechanism；

Fig. 2 is the sectional view of this utility model bearing shell locking mechanism；

Fig. 3 is the schematic diagram of this utility model bearing shell locking mechanism intermediate bushing installation position；

Wherein: 1-bearing block, 2-bearing shell, 3-axle sleeve, 4-pin, 5-driven shaft, 6-screw, 7-stop pin, 8-anti-rotation pad.

Detailed description of the invention

With embodiment, content of the present utility model is further described below in conjunction with the accompanying drawings:

Embodiment 1

A kind of magnetic drive pump bearing shell locking mechanism that the utility model proposes, including: axle sleeve 3, bearing shell 2, bearing block 1, anti-rotation pad 8, screw 6, stop pin 7；Wherein, bearing shell 2 inner side end is machined with anti-rotation pin-and-hole, has two stepped breach at the outer of bearing shell 2 end face outside；Axially have anti-rotation pin-and-hole on the bearing position inner side end of bearing block 1, outside the bearing position of bearing block 1 in have two stepped breach along place, each stepped indentation, there on bearing block 1 axially has positioning screw hole；Stepped breach on bearing shell 2 matches with the degree of depth and the circle distribution position of the stepped breach on bearing block 1；The laminated structure that in the cavity that anti-rotation pad 8 is profile to be surrounded with the stepped breach on one group of bearing shell 2 and the stepped breach on bearing block 1, shape matches, anti-rotation pad 8 has screw and passes through hole；

Axle sleeve 3 is arranged on the bearing position of driven shaft 5, and bearing block 1 is all inserted with stop pin in the anti-rotation pin-and-hole of two bearing position inner side ends；Two bearing shells are separately mounted to two bearing positions of bearing block 1, and make the stop pin of 1 two bearing position inner side ends of insertion bearing block be inserted simultaneously into the anti-rotation pin-and-hole inside bearing shell, realizing two bearing shells and bearing block 1 circumferential registration, now the stepped breach outside two bearing shells 2 is the most corresponding with the stepped breach outside bearing block 1；Anti-rotation pad 8 all it is placed with in the cavity that often the stepped breach on group bearing shell 2 and the stepped breach on bearing block 1 surround, screw 6 is fixed through the positioning screw hole of anti-rotation pad 8 with the end face of stepped breach on bearing block 1, anti-rotation pad 8 is made to compress, it is achieved two bearing shells and axial, the circumference Dual positioning of bearing block 1.

Claims (1)

1. a magnetic drive pump bearing shell locking mechanism, is characterized in that including: axle sleeve, bearing shell, bearing block, anti-rotation pad, screw, stop pin；Wherein, bearing shell inner side end is machined with anti-rotation pin-and-hole, has more than one stepped breach at the outer of bearing shell end face outside；Axially have anti-rotation pin-and-hole on the bearing position inner side end of bearing block, outside the bearing position of bearing block in have more than one stepped breach along place, each stepped indentation, there on bearing block axially has positioning screw hole；Stepped breach on bearing shell matches with the degree of depth and the circle distribution position of the stepped breach on bearing block；The laminated structure that in the cavity that anti-rotation pad is profile to be surrounded with the stepped breach on one group of bearing shell and the stepped breach on bearing block, shape matches, anti-rotation pad has screw and passes through hole；

Axle sleeve is arranged on the bearing position of driven shaft, and bearing block is all inserted with stop pin in the anti-rotation pin-and-hole of two bearing position inner side ends；Two bearing shells are separately mounted to two bearing positions of bearing block, and make the stop pin of two bearing position inner side ends of insertion bearing block be inserted simultaneously into the anti-rotation pin-and-hole inside bearing shell, realizing two bearing shells and bearing block circumferential registration, now the stepped breach outside two bearing shells is the most corresponding with the stepped breach outside bearing block；Anti-rotation pad all it is placed with in the cavity that often the stepped breach on group bearing shell and the stepped breach on bearing block surround, screw through the positioning screw hole of anti-rotation pad with on bearing block the end face of stepped breach fix, anti-rotation pad is made to compress, it is achieved two bearing shells and axial, the circumference Dual positioning of bearing block.