CN109236851A

CN109236851A - Axial series dual thrust self-balancing sliding bearing

Info

Publication number: CN109236851A
Application number: CN201811170336.7A
Authority: CN
Inventors: 黎明; 朱凯迪; 刘勋; 游洋; 张立超; 刘庆鹤; 徐波; 张振海
Original assignee: 703th Research Institute of CSIC
Current assignee: 703th Research Institute of CSIC
Priority date: 2018-10-09
Filing date: 2018-10-09
Publication date: 2019-01-18
Anticipated expiration: 2038-10-09
Also published as: CN109236851B

Abstract

A kind of axial series dual thrust self-balancing sliding bearing, it is related to technical field of bearings, it includes axle sleeve, thrust disc, thrust pad, the balance cushion block of thrust pad, forward thrust bearing block, back pressure bearing block, balance weight and casing, and first place is sequentially connected with balance cushion block, forward thrust bearing block, thrust disc, thrust pad, the balance cushion block of thrust pad, back pressure bearing block, balance weight and the casing of right axle sleeve, thrust disc, thrust pad, thrust pad from left to right.This axial series dual thrust self-balancing sliding bearing can be applied in high-speed rotating rotating machinery, can reduce bearing diameter；Under same line velocity conditions, more top load can be carried；Special structure can make two sets of bearing shells while work, and reach born thrust self-balancing.

Description

Axial series dual thrust self-balancing sliding bearing

Technical field:

The present invention relates to technical field of bearings, and in particular to axial series dual thrust self-balancing sliding bearing.

Background technique:

Bearing considerably reduces the friction between rotatable parts and support member as the important component in engineering machinery.With The development of technology, various industries the requirement for bearing is allowed for for the raising of the requirements such as mechanical performance and stability It steps up.Rolling bearing can adapt to most working condition, and sliding bearing has relative to rolling bearing: 1. service life Length is able to bear shock and vibration load suitable for high speed 2., and large carrying capacity is suitable for 3. running accuracy of heavily loaded occasion height, work Making 4. structures of balance clear advantages, these advantages simply convenient for disassembly and assembly etc. has it well in high-speed rotating machine field Application prospect.

The 17th century Mo, the ball bearing that C. watts of Lip river of Britain manufactures and designs, the fertile patent for thinking to achieve ball bearing of P..From 17 generation End record in the middle of the 19th century, many scientific workers have paid considerable effort in this field, until Freed in 1883 In wish Fei Sheer and propose just thoroughly to have established separate bearings work with production of machinery size is identical, the opinion of circularity accurately steel ball The basis of industry.The World War I starts, and as bearing is in the huge applications potentiality of military industry field, has expedited the emergence of this industry Rapid development.Main bearing market is occupied by a small number of enterprises of the country such as Japan, Germany, U.S. in the world now, and I The main bearings manufacturer of state, which only has, such as breathes out the production that a small number of Bearing Factories of axis, Lip river axis, watt axis have part to have degree of recognition on the market Product.

General thrust slide bearing can all correspondingly reduce thrust pad to guarantee linear velocity in a certain range Outer diameter will result in born thrust in this way and reduce, and single thrust unit is just unable to satisfy requirement.

Summary of the invention:

In place of overcoming above-mentioned the shortcomings of the prior art, and provide a kind of axial series dual thrust Self-balancing sliding bearing, the existing single thrust bearing of its effective solution is in the case where high revolving speed high thrust, unbearable thrust And design, using dual thrust structure, thrust is adaptively distributed evenly on two bearing thrust units.

The technical solution adopted by the present invention are as follows: axial series dual thrust self-balancing sliding bearing, including axle sleeve, thrust disc, Thrust pad, the balance cushion block of thrust pad, forward thrust bearing block, back pressure bearing block, balance weight and casing, thrust disc push away Power tile fragment, thrust pad the number of balance cushion block be two, two thrust discs are connected with each other and connect with axle sleeve, axle sleeve It is connect with one of thrust disc, thrust disc is connect with one of thrust pad, thrust pad and forward thrust bearing block one end Connection, is equipped with the balance cushion block of one of thrust pad between thrust pad and forward thrust bearing block, forward thrust bearing block is another One end is connect with another thrust disc, and thrust disc is connect with another thrust pad, and thrust pad is connect with back pressure bearing block, The balance cushion block of another thrust pad is equipped between thrust pad and back pressure bearing block, back pressure bearing block passes through balance weight It is connect with casing.

The balance weight equal distribution is on the periphery of back pressure bearing block.

The beneficial effects of the present invention are: this axial series dual thrust self-balancing sliding bearing can be applied to it is high-speed rotating In rotating machinery, bearing diameter can reduce；Under same line velocity conditions, more top load can be carried；Special structure can So that two sets of bearing shells work simultaneously, reach born thrust self-balancing.

Detailed description of the invention:

Fig. 1 is schematic structural view of the invention；

Fig. 2 is balance weight distribution map of the present invention.

Specific embodiment:

Referring to each figure, axial series dual thrust self-balancing sliding bearing, including axle sleeve 1, thrust disc 2, thrust pad 3, thrust bearing shoe valve Balance cushion block 4, forward thrust bearing block 5, back pressure bearing block 6, balance weight 7 and the casing 8 of block, thrust disc 2, push away thrust pad 3 The number of the balance cushion block 4 of power tile fragment is two, and two thrust discs 2 are connected with each other and connect with axle sleeve 1, axle sleeve 1 and its In thrust disc 2 connect, thrust disc 2 is connect with one of thrust pad 3, thrust pad 3 and 5 one end of forward thrust bearing block Connection is equipped with the balance cushion block 4 of one of thrust pad, forward thrust bearing block between thrust pad 3 and forward thrust bearing block 5 5 other ends are connect with another thrust disc 2, and thrust disc 2 is connect with another thrust pad 3, thrust pad 3 and back pressure bearing Seat 6 connects, and the balance cushion block 4 of another thrust pad, back pressure bearing are equipped between thrust pad 3 and back pressure bearing block 6 Seat 6 is connect by balance weight 7 with casing 8.7 equal distribution of balance weight is on the periphery of back pressure bearing block 6.

Axle sleeve 1 is for installed thrust disk 2, and axle sleeve 1 and thrust disc 2 constitute the transmission parts of bearing；Thrust pad 3, the balance cushion block 4 and back pressure of the balance cushion block 4 and forward thrust bearing block 5 and thrust pad 3, thrust pad of thrust pad Bearing block 6 constitutes former and later two thrust bearings, and casing 8 is subject to the casing of all thrusts.

Embodiment one

Bearing is dual thrust structure, and the thrust of preceding reasoning bearing and back pressure bearing all passes through respective forward thrust bearing block 5 and changes Hot back pressure bearing block 6 is transmitted on the balance weight 7 of thrust, is collectively constituted " seesaw " structure, is carried out through this structure Thrust-balancing, the thrust disc 2 of rotation are mounted on an axle sleeve 1.

Embodiment two

With the arrangement of embodiment one, unlike thrust disc 2 be mounted directly on the rotary shaft, thrust pad 3 and thrust The quantity of balance weight 7 is different.

Embodiment three

With the arrangement of embodiment one, the difference is that thrust bearing shoe is bearing shell that is fixed, can not inclining, it is subsequent without bearing shell The balance weight 7 of thrust pad.

Using the structure type of dual thrust unit, meets the needs of to thrust；Using forward thrust bearing block 5 and back pressure axis The structure type that seat 6 is nested together is held, guarantees compact-sized and radial positioning；Balance weight 7 is used after back pressure bearing block, Using the structure type of " seesaw ", the axial thrust of two thrust units of mean allocation；Using whole thrust after balance weight 7 Ring bears thrust, and whole thrust ring is also the fulcrum of balance weight 7 " seesaw ".

Working speed be can control between 0-12000rpm；It is compact-sized, it can be according to actual use situation to load Part carries out intensity adjustment；It can be according to the structure of the size and oil feeding line of actual use space and Operating condition adjustment bearing working face Form.

This axial series dual thrust self-balancing sliding bearing uses dual thrust structure, axial series form, according to " lifting up Plate " structure can make the thrust self-balancing on two thrust discs, using dual thrust structure, improve bearing load carrying capacity, reduce Bearing diameter.

In conclusion this axial series dual thrust self-balancing sliding bearing can be applied to high-speed rotating rotating machinery In, it can reduce bearing diameter；Under same line velocity conditions, more top load can be carried；Special structure can make two Set bearing shell works simultaneously, reaches born thrust self-balancing.

Claims

1. a kind of axial series dual thrust self-balancing sliding bearing, it is characterised in that: including axle sleeve (1), thrust disc (2), thrust Tile fragment (3), the balance cushion block (4) of thrust pad, forward thrust bearing block (5), back pressure bearing block (6), balance weight (7) and casing (8), thrust disc (2), thrust pad (3), thrust pad the number of balance cushion block (4) be two, two thrust disc (2) phases It connects and is connect with axle sleeve (1), axle sleeve (1) is connect with one of thrust disc (2), and thrust disc (2) is pushed away with one of them Power tile fragment (3) connection, thrust pad (3) are connect with forward thrust bearing block (5) one end, thrust pad (3) and forward thrust bearing block (5) the balance cushion block (4) of one of thrust pad, forward thrust bearing block (5) other end and another thrust disc are equipped between (2) it connects, thrust disc (2) is connect with another thrust pad (3), and thrust pad (3) is connect with back pressure bearing block (6), is pushed away The balance cushion block (4) of another thrust pad, back pressure bearing block (6) are equipped between power tile fragment (3) and back pressure bearing block (6) It is connect by balance weight (7) with casing (8).

2. axial series dual thrust self-balancing sliding bearing according to claim 1, it is characterised in that: the balance weight (7) equal distribution is on the periphery of back pressure bearing block (6).