CN204628276U

CN204628276U - Composite guideway bearing

Info

Publication number: CN204628276U
Application number: CN201520281390.4U
Authority: CN
Inventors: 孙小丛; 万玲; 李文喜
Original assignee: Xiangyang Boya Precision Industrial Equipments Co Ltd
Current assignee: Xiangyang Boya Precision Industrial Equipments Co Ltd
Priority date: 2015-05-05
Filing date: 2015-05-05
Publication date: 2015-09-09
Anticipated expiration: 2025-05-05

Abstract

A kind of composite guideway bearing, is mainly used in military vehicle conveying shell.Outer ring one, retainer between outer ring two and inner ring are built with steel ball; Retainer is split-type structural, and inner ring and bearing support are combined into one; The side of inner ring is provided with two pairs of lugs, and with for bearings mounted bearing pin in lug, bearing pin is contained on lug; Outer ring two and ball bearing roll at the horizontal segment of guide rail, and when bearing is turn-taked, outer ring two and ball bearing getaway, two outer rings one contact with each other at the arc section of guide rail, rotate.The utility model installing space is little, and precision is high, and bearing capacity is large, and simple installation is quick, and anti-corrosion ability is strong, rigidity and bearing capacity high.

Description

Composite guideway bearing

Technical field

The utility model relates to bearing mnanufacture technical field, specifically a kind of composite guideway bearing for military vehicle conveying shell.

Background technique

In prior art, the structure of linear rail bearing has multiple, as cylindrical roller class, deep groove ball bearing class, tapered roller bearing class, linear bearing, ball screw linear bearing etc., can to-and-fro motion on straight line type guide rail, the combined loads such as larger axial load, radial load can be born simultaneously, integrate supporting, rotation, transmission, the several functions such as fixing.Generally, guide rail bearing self all with mounting hole, lubricant oil and seal arrangement, the different demands of various main frame under different working condition can be met; On the other hand, guide rail bearing itself has compact structure, guides conveniently, installs convenient and be easy to the features such as maintenance, is widely used among the precision equipments such as food machinery, package packing machine, medical machinery, printing machinery, textile manufacturing machine, instrument manufacturing, automobile making, machine tool, numerical control machine tool, robot and Digital Three-Dimensional coordinate measurment instrument or special machine industry.

At present, standard rail bearing is confined to linear rail, comprises V-arrangement, circle, square rail etc.And for type ring-shaped guide rail, due to guide rail size restriction, requirement can bear radial and axial power, can turn to flexibly at the level place of guide rail and circular arc place, and common guide rail bearing cannot satisfy the demands.

Summary of the invention

For overcoming the deficiencies in the prior art, goal of the invention of the present utility model is to provide a kind of composite guideway bearing, to realize turning to flexibly at the level place of type ring-shaped guide rail and circular arc place.

For achieving the above object, outer ring one of the present utility model, retainer between outer ring two and inner ring are built with steel ball; Retainer is split-type structural, and inner ring and bearing support are combined into one; The side of inner ring is provided with two pairs of lugs, and with the bearing pin for installing ball bearing in lug, bearing pin is contained on lug; Outer ring two and ball bearing roll at the horizontal segment of guide rail, and when bearing is turn-taked, outer ring two and ball bearing getaway, two outer rings one contact with each other at the arc section of guide rail, rotate.

Described outer ring one, outer ring two are with peach-shaped raceway groove one; The external diameter of outer ring one is greater than the external diameter of outer ring two.

Described inner ring is with peach-shaped raceway groove two; With the pin-and-hole for installing chain in bearing support.

The utility model compared with prior art, has the following advantages:

1., installing space is little: radial dimension of the present utility model is little, and wall thickness is thinner, changes standard rolling bearing structure, inner ring and bearing support is combined into one, and is saving installing space to a greater extent.

2., precision is high: the heat treatment method that outer ring adopts vacuum hardening and correction to combine, inner ring adopts part surface quenching, substantially reduces amount of deformation, improves bearing accuracy.

3., rigidity and bearing capacity large: adopt biserial 4 angular contact ball bearings, the structure that inner ring and bearing support integrate, steel ball increase, improves the bearing capacity of bearing.

4., internal structure flexibly: adopt split type retainer, retainer intensity and bearing flexibility can be improved, be convenient to steel ball and install.

5., anti-corrosion ability: outer ring adopts stainless steel, and inner ring adopts oxidation processes, improves the anti-corrosion ability of bearing.

6., easy for installation, quick: to adopt inner ring and bearing support integrative-structure, make bearing form modularization, componentized, safeguard that installation is more convenient, quick.

Accompanying drawing explanation

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

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the peach-shaped raceway groove enlarged view of Fig. 1.

Enlarged view when Fig. 4 is bearing turning.

Fig. 5 is bearing rotation figure on guide rail.

Fig. 6 is the side view of Fig. 5.

Fig. 7 is the constitutional diagram of the retainer of Fig. 1.

Embodiment

As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 7, outer ring 1, retainer 4 between outer ring 22 and inner ring 5 is built with steel ball 3, steel ball 3 is precision stainless steel steel ball, outer ring 1, outer ring 22 is with peach-shaped raceway groove 1, inner ring 5 is with peach-shaped raceway groove 2 11, described peach-shaped raceway groove is conducive to the radial direction and the axial carrying capacity that improve bearing, the external diameter of outer ring 1 is greater than the external diameter of outer ring 22, mainly be convenient to when turning, outer ring 1 contacts with each other, outer ring 22 getaway, the wall thickness of outer ring is thinner, correct with corresponding frock after adopting heat treatment vacuum hardening, technical requirements is met to make amount of deformation.Retainer 4 is split-type structural, is combined, can improve the intensity of retainer 4 by 23 split retainers, be convenient to install, each split retainer respectively has two steel ball mouths, and steel ball oral area has magnitude of interference, steel ball 3 can be pinned, bearing flexible rotating can be made again simultaneously.Inner ring 5 and bearing support 12 are combined into one, and are saving installing space to a greater extent; With the pin-and-hole 13 for installing chain in bearing support 15, chain-driving bearing support moves on guide rail, and chain drives underdrive at sprocket wheel, realizes the movement of shell 14; The side of inner ring 5 is provided with two pairs of lugs 8, and with the bearing pin 7 for installing ball bearing 6 in lug 8, bearing pin 7 is contained on lug 8.

As shown in Fig. 4, Fig. 5, Fig. 6, chain 18 drives bearing support to move on the rail 9, chain 18 drives underdrive at sprocket wheel 17, outer ring two and ball bearing roll at the horizontal segment 15 of guide rail 9, when bearing is turn-taked, and outer ring two and ball bearing getaway 9, two outer rings one contact with each other at the arc section 19 of guide rail 9, rotate, reach the requirement of turning, when travelling to when releasing position 16, the shell 14 in bearing is released by oil cylinder.

Claims

1. a composite guideway bearing, is characterized in that: outer ring one (1), retainer (4) between outer ring two (2) and inner ring (5) are built with steel ball (3); Retainer (4) is split-type structural, and inner ring (5) and bearing support (12) are combined into one; The side of inner ring (5) is provided with two pairs of lugs (8), and with the bearing pin (7) for installing ball bearing (6) in lug (8), bearing pin (7) is contained on lug (8); Outer ring two (2) and ball bearing (6) roll at the horizontal segment of guide rail (9), and when bearing is turn-taked, outer ring two (2) and ball bearing (6) getaway (9), two outer rings one (1) contact with each other at the arc section of guide rail (9), rotate.

2. composite guideway bearing according to claim 1, is characterized in that: described outer ring one (1), outer ring two (2) are with peach-shaped raceway groove one (10); The external diameter of outer ring one (1) is greater than the external diameter of outer ring two (2).

3. composite guideway bearing according to claim 1, is characterized in that: described inner ring (5) is with peach-shaped raceway groove two (11); With the pin-and-hole (13) for installing chain (18) in bearing support (12).