CN214661568U

CN214661568U - Pressure end full floating bearing

Info

Publication number: CN214661568U
Application number: CN202121091457.XU
Authority: CN
Inventors: 沈恬宇
Original assignee: Changzhou Jieteng Precision Machinery Co ltd
Current assignee: Changzhou Jieteng Precision Machinery Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-11-09
Anticipated expiration: 2031-05-20

Abstract

The utility model relates to a press and hold full floating bearing, this press and hold full floating bearing includes the bearing frame, the bearing cap, the copper bearing, the bearing frame includes the pedestal of first flange and cylinder, the pedestal sets up the installation cavity that is used for assembling the copper bearing, the front end of installation cavity sets up the thrust collar, it is spacing to carry out the axial to the front end of copper bearing, set up first oil wedge face on the preceding terminal surface of pedestal, the rear end face of bearing cap sets up second oil wedge face, the bearing cap links to each other with first flange is fixed, it is spacing to be used for carrying out the axial to the tail end of copper bearing, set up a plurality of and the location blind hole of spring pin looks adaptation on the first flange, set up bearing cap location blind hole on the bearing cap, the both ends of spring pin are arranged in respectively during the assembly and are held in lid location blind hole and locating hole.

Description

Pressure end full floating bearing

Technical Field

The utility model relates to a turbo charger spare part technical field, especially a press end bearing that floats entirely.

Background

Turbochargers are widely used in diesel engines, and are one of the key accessories for diesel engines. The bearing is a core component of the supercharger and is related to the safe operation of the supercharger.

The turbocharger is widely applied to the diesel engine, can improve the heat efficiency and the power density of the diesel engine and reduce the emission, and becomes one of key matching parts of the diesel engine. In the operation process, high-temperature and high-pressure waste gas is generated by combustion of a diesel engine cylinder, the waste gas passes through a supercharger waste gas turbine, the energy of the waste gas drives the turbine to rotate at a high speed and output shaft work, a compressor is driven to rotate to do work through a turbine main shaft, the air density is compressed and improved, and compressed air enters the cylinder after being cooled through an intercooler to participate in diesel oil combustion of the cylinder.

In the prior art, a patent document with an authorization publication number of CN211174990U and a name of a semi-floating radial bearing structure of an axial turbine supercharger describes a semi-floating radial bearing structure of an axial turbine supercharger, which comprises a bearing shell, a pressure end sealing end cover, a vortex end sealing end cover, a pressure end bearing block and a vortex end bearing block, a rotor shaft, a vortex end radial bearing, a pressure end radial bearing, an oil thrower and a compressor impeller; the radial bearing of the pressure end is of an integrated structure, and the manufacturing cost is high.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a simple structure, effectively reduce manufacturing cost's pressure end bearing that floats entirely.

For solving the technical problem, the utility model provides a press end full floating bearing, including bearing frame, bearing cap, copper bearing, the bearing frame includes the pedestal of first flange and cylinder, and the pedestal sets up the installation cavity that is used for assembling the copper bearing, and the front end of installation cavity sets up the thrust collar for it is spacing to carry out the axial to the front end of copper bearing, sets up first oil wedge face on the preceding terminal surface of pedestal, and the rear end face of bearing cap sets up second oil wedge face, the bearing cap links to each other with first flange is fixed for carry out the axial to the tail end of copper bearing spacing, set up a plurality of and the location blind hole of spring pin looks adaptation on the first flange, set up bearing cap location blind hole on the bearing cap, in bearing cap location blind hole and the location blind hole were arranged respectively in at the both ends of spring pin during the assembly, be used for alignment to the bearing cap.

Furthermore, an outer ring groove is formed in the outer wall of the seat body along the circumferential direction, a plurality of oil through holes are formed in the seat body along the radial direction, and inlets of the oil through holes are communicated with the outer ring groove, so that lubricating oil can conveniently enter the seat body.

Furthermore, the outer wall of the copper bearing is circumferentially provided with an annular oil passing groove, the copper bearing is provided with a plurality of oil passing holes along the radial direction, the inlets of the oil passing holes are communicated with the oil passing groove, and the oil passing holes are arranged outside the circumference of the oil passing groove after the copper bearing enters the mounting cavity, so that lubricating oil can conveniently enter the copper bearing.

Furthermore, an oil storage tank is arranged at the outlet of the inner wall of the copper bearing of each oil passing hole and used for storing lubricating oil.

Furthermore, the cross-section of oil storage tank is the arc setting, it communicates with each other with the bottom in oil storage tank middle part to cross the oilhole, and the lubricating oil of being convenient for gets into the oil storage tank.

Further, the both ends of oil storage tank set up the oil groove that goes out that extends to copper bearing both ends along the axial, the both ends of the lubricating oil flow direction copper bearing of the oil storage tank of being convenient for.

Furthermore, the number of the oil passing holes is 3, and the oil passing holes are uniformly distributed on the same circumference of the copper bearing; the oil through holes are 3 and are uniformly distributed on the same circumference of the base body.

Furthermore, the number of the positioning blind holes is 3, and the positioning blind holes are uniformly distributed on the same circumference of the end face of the first flange; the bearing cap location blind hole is 3, and the equipartition is on the same circumference of bearing cap.

The technical effects of the utility model are that: (1) compared with the prior art, the pressure end full floating bearing of the utility model obtains the pressure end bearing with full floating performance by arranging the copper bearing, the bearing seat and the bearing cover; the copper bearing is made of copper alloy, and the bearing cover and the bearing seat are made of stainless steel, so that the overall cost is reduced; (2) the oil storage tank is arranged, so that lubricating oil can be conveniently stored, and subsequent lubrication is facilitated; (3) the cross-section of oil storage tank is the arc, and crosses the bottom at oilhole and oil storage tank middle part and communicate with each other, and the lubricating oil of being convenient for gets into the oil storage tank, and the oil groove that goes out that the both ends set up is convenient for lubricating oil flow to the both ends of copper bearing, lubricates.

Drawings

The invention will be described in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic cross-sectional view of a pressure-end full floating bearing according to the present invention;

FIG. 2 is a schematic cross-sectional view of a bearing housing;

FIG. 3 is an axial schematic view of the bearing seat;

FIG. 4 is a schematic cross-sectional view of a bearing cap;

FIG. 5 is a schematic cross-sectional view of a copper bearing along the axial direction;

FIG. 6 is a schematic cross-sectional view of a copper bearing in the radial direction;

in the figure: the bearing seat 1, a first flange 11, a seat body 12, an outer ring groove 13, an oil through hole 14, a first oil wedge surface 15, a thrust ring 16, a mounting cavity 17, a mounting hole 18, a positioning blind hole 19,

a bearing cover 2, a second oil wedge surface 21, a bearing cover mounting hole 22, a bearing cover positioning blind hole 23,

a copper bearing 3, an oil passing groove 31, an oil passing hole 32, an oil storage groove 33, an oil outlet groove 34,

spring pin 4, screw 5.

Detailed Description

Embodiment 1 as shown in fig. 1 to 6, the pressure end full floating bearing of this embodiment includes a bearing seat 1, a bearing cover 2, a copper bearing 3 and a spring pin 4, the bearing seat 1 includes a first flange 11 and a cylindrical seat body 12, and the first flange 11 and the seat body 12 are formed by turning stainless steel and then integrally forming.

The pedestal 11 sets up the installation cavity 17 that is used for assembling copper bearing 3, and little clearance fit between the outer wall of copper bearing 3 and the inner wall of installation cavity 17, and the front portion of installation cavity 17 sets up thrust collar 16 for it is spacing to carry out the axial to the front end of copper bearing 3, sets up first oil wedge face 15 on the preceding terminal surface of pedestal 12, and the rear end face of bearing cap 2 sets up second oil wedge face 21.

An annular oil passing groove 31 is formed in the outer wall of the copper bearing 3 along the circumferential direction, 3 oil passing holes 32 are formed in the copper bearing 3 along the radial direction, and the 3 oil passing holes 32 are uniformly distributed on the same circumference of the copper bearing 3; and the inlet of each oil passing hole 32 is communicated with the oil passing groove 31, so that lubricating oil can conveniently enter the copper bearing 3.

An outer ring groove 13 is arranged on the outer wall of the seat body 12 along the circumferential direction, 3 oil through holes 14 are arranged on the seat body 12 along the radial direction, the 3 oil through holes 14 are uniformly distributed on the same circumference of the seat body 12, and the inlets of the oil through holes 14 are communicated with the outer ring groove 13, so that lubricating oil can conveniently enter the seat body 12; after the copper bearing 3 enters the mounting cavity 17, the oil through hole 14 is arranged outside the circumference of the oil through groove 31, so that lubricating oil can conveniently enter the copper bearing 3 through the oil through hole 14, the oil through groove 31 and the oil through hole 32; a waist-shaped oil storage tank 33 is arranged at the outlet of the inner wall of the copper bearing 3 of each oil passing hole 32 and is used for storing lubricating oil; the section of the oil storage tank 33 is arc-shaped, and the oil passing hole 32 is communicated with the bottom end of the middle part of the oil storage tank 33, so that lubricating oil can conveniently enter the oil storage tank 33; oil outlet grooves 34 extending to the two ends of the copper bearing 3 are axially arranged at the two ends of the oil storage groove 33, so that lubricating oil in the oil storage groove 33 can flow to the two ends of the copper bearing 3 conveniently.

3 positioning blind holes 19 matched with the spring pins are arranged on the first flange 11, and the 3 positioning blind holes 19 are uniformly distributed on the same circumference of the end surface of the first flange 11; set up 3 bearing cap location blind holes 23 on the bearing cap 2, bearing cap location blind hole 23 equipartition is on the same circumference of bearing cap 2, and the both ends of spring catch 4 are arranged in bearing cap location blind hole 23 and the location blind hole 19 of first flange 11 respectively during the assembly for carry out the alignment to bearing cap 2.

The pressure end full floating bearing still includes 6 screws 5 and 6 bullet pads, screw 5 includes screw rod and the nut that integrated into one piece set up, set up 6 mounting hole 18 with screw rod screw-thread fit on the terminal surface of

first flange

11, 18 equipartitions of 6 mounting hole are on the same circumference of first flange 11 terminal surface, set up 6 bearing cap mounting hole 22 that are suitable for the screw rod to pass through on the bearing cap 2, 6 bearing cap mounting hole 22 equipartitions are on the same circumference of bearing cap 2, so that bearing cap 2 fixes through screw 5 with bearing frame 1, it arranges in between nut and the bearing cap 2 to play the pad, and it is sealed to glue after screw rod and the screw cooperation.

It should be understood that the above examples are only for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And that obvious changes and modifications may be made without departing from the spirit of the invention.

Claims

1. The utility model provides a press end full floating bearing, its characterized in that, includes bearing frame, bearing cap, copper bearing, the bearing frame includes the pedestal of first flange and cylinder, and the pedestal sets up the installation cavity that is used for assembling the copper bearing, and the front end of installation cavity sets up the thrust ring for it is spacing to carry out the axial to the front end of copper bearing, sets up first oil wedge face on the preceding terminal surface of pedestal, and the rear end face of bearing cap sets up second oil wedge face, the bearing cap links to each other with first flange is fixed for carry out the axial to the tail end of copper bearing spacing, set up a plurality of location blind holes with spring pin looks adaptation on the first flange, set up bearing cap location blind hole on the bearing cap, in bearing cap location blind hole and the location blind hole were arranged respectively in at the both ends of spring pin during the assembly.

2. The pressure end full floating bearing according to claim 1, wherein the outer wall of said seat body is provided with an outer annular groove along a circumferential direction, said seat body is provided with a plurality of oil through holes along a radial direction, and inlets of said oil through holes are communicated with said outer annular groove.

3. The pressure end full floating bearing according to claim 2, wherein the outer wall of the copper bearing is provided with an annular oil passing groove along the circumferential direction, the copper bearing is provided with a plurality of oil passing holes along the radial direction, the inlets of the oil passing holes are communicated with the oil passing groove, and the oil passing holes are arranged outside the circumference of the oil passing groove after the copper bearing enters the mounting cavity.

4. The pressure end full floating bearing according to claim 3, wherein each oil passing hole is provided with an oil storage groove at the outlet of the inner wall of the copper bearing.

5. The pressure end full floating bearing according to claim 4, wherein the cross section of the oil storage tank is arc-shaped, and the oil passing hole is communicated with the bottom end of the middle part of the oil storage tank.

6. The pressure end full floating bearing according to claim 5, wherein oil grooves are provided at both ends of the oil storage groove.

7. The pressure end full floating bearing according to claim 6, wherein the two ends of the oil storage tank are provided with oil outlet grooves extending to the two ends of the copper bearing along the axial direction.

8. The pressure end full floating bearing according to claim 7, wherein the number of the oil passing holes is 3, and the oil passing holes are uniformly distributed on the same circumference of the copper bearing; the oil through holes are 3 and are uniformly distributed on the same circumference of the base body.

9. The pressure end full floating bearing according to claim 8, wherein the number of the positioning blind holes is 3, and the positioning blind holes are uniformly distributed on the same circumference of the end face of the first flange; the bearing cap location blind hole is 3, and the equipartition is on the same circumference of bearing cap.