CN2908903Y

CN2908903Y - Linear guide

Info

Publication number: CN2908903Y
Application number: CN 200620057622
Authority: CN
Inventors: 张冠华
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-12
Filing date: 2006-04-12
Publication date: 2007-06-06
Anticipated expiration: 2016-04-12

Abstract

A linear guide is provided by the utility model, which comprises a outer guide and a sliding block sliding along the outer guide. The sliding block consists of an inner rail, a commutator and two groups of balls arranged by means of rolling depression. The inner rail is embedded in middle of the commutator, and commutation channels of ball groups are provided on both sides of the commutator; a gap between the outer guide and inner rail and the commutation channels on both sides of the commutator jointly form gyration channels of the ball groups and the two groups of balls are arranged in the gyration channels on both sides. The utility model has the advantages of high strength and long performance life.

Description

A kind of linear rail

Technical field

The utility model relates to a kind of linear rail that is used for furniture, mechanical isoline moving member.

Background technique

At present, the traditional line guide rail that on furniture, working machine isoline moving member, uses, ball set adopts two kinds of arrangements usually, a kind of employing ball support, another kind of employing roll extrusion is arranged; With regard to the linear rail that ball is arranged in roll extrusion, obtain using more and more widely because of it is processed simply, cost is low, stable, but it is to be stamped to form by two tinsels that the slide block of the linear rail of ball is arranged in traditional roll extrusion, deforms easily in the use, influences normal working life; And using in machinery is that water, dust and metal fillings enter in the guide rail easily, also can influence the normal use of guide rail.

Summary of the invention

The purpose of this utility model is to provide the linear rail of a kind of intensity height, long service life.

The purpose of this utility model is achieved in that a kind of linear rail, comprise outer guide and the slide block that slides along outer guide, wherein: described slide block is made up of the ball set of inner orbit, commutator and two groups of roll extrusion arrangements, inner orbit is embedded at the commutator middle part, is equipped with ball set commutation passage on the commutator both sides; The commutation passage on gap between outer guide and the inner orbit and commutator both sides constitutes the ball set rotating channel jointly, and two groups of ball set are arranged in respectively in the rotating channel on both sides.

Commutator described in above-mentioned a kind of linear rail is to be combined by inner panel and outside plate, to make things convenient for manufacturing.

Can be fixed with the flute profile protective housing that extends along the outer guide length direction on the outer guide described in above-mentioned a kind of linear rail, can prevent that like this sealing, dust and metal fillings enter guide rail.

After the utility model adopts said structure, be combined into slide block, have the intensity height, be not easy to deform longer service life in the use because of adopting inner orbit and commutator; After further improving, can also prevent that sealing, dust and metal fillings enter in the guide rail, guarantee the normal use of guide rail.

Description of drawings

Below in conjunction with the embodiment in the accompanying drawing the utility model is described in further detail, but does not constitute any restriction of the present utility model.

Fig. 1 is the utility model embodiment 1 a structural representation;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is that the E-E of Fig. 2 is to sectional view;

Fig. 4 is that the F-F of Fig. 1 is to sectional view;

Fig. 5 is the utility model embodiment 2 a structural representation;

Fig. 6 is that the G-G of Fig. 5 is to sectional view;

Fig. 7 is that the H-H of Fig. 5 is to sectional view.

Embodiment

Embodiment 1

Consult Fig. 1 to shown in Figure 4, a kind of linear rail of the present utility model, comprise outer guide 1 and the slide block 2 that slides along outer guide 1, slide block 2 is made up of the ball set 23 of inner orbit 21, commutator 22 and two groups of roll extrusion arrangements, commutator 22 is to be combined by inner panel 22B and outside plate 22C, inner orbit 22 is embedded at commutator 22 middle parts, is equipped with ball set commutation passage 22A on commutator 22 both sides; The commutation passage 22A on gap between outer guide 1 and the inner orbit 21 and commutator 22 both sides constitutes ball set 23 rotating channels jointly, and two groups of ball set 23 are arranged in respectively in the rotating channel on both sides.Concrete using method of the present utility model is identical with the traditional line guide rail, is mainly used in the displacement part of straight line in the furniture.

Embodiment 2

Consult Fig. 5 to shown in Figure 7, a kind of linear rail of the present utility model, be on embodiment 1 basis, on outer guide 1, fix a flute profile protective housing 3 along the extension of outer guide 1 length direction, to reach the purpose that waterproof, dust and metal fillings enter guide rail, be mainly used in the displacement part of straight line guide rail in the working machine.

Claims

1. linear rail, comprise outer guide (1) and the slide block (2) that slides along outer guide (1), it is characterized in that: described slide block (2) is made up of the ball set (23) of inner orbit (21), commutator (22) and two groups of roll extrusion arrangements, inner orbit (22) is embedded at commutator (22) middle part, is equipped with ball set commutation passage (22A) on commutator (22) both sides; The commutation passage (22A) on gap between outer guide (1) and the inner orbit (21) and commutator (22) both sides constitutes ball set (23) rotating channel jointly, and two groups of ball set (23) are arranged in respectively in the rotating channel on both sides.

2. a kind of linear rail according to claim 1 is characterized in that: described commutator (22) is to be combined by inner panel (22B) and outside plate (22C).

3. a kind of linear rail according to claim 1 and 2 is characterized in that: be fixed with the flute profile protective housing (3) that extends along outer guide (1) length direction on the described outer guide (1).