CN2769598Y

CN2769598Y - High-precision four-directional equal-loading rolling linear guide rail pair

Info

Publication number: CN2769598Y
Application number: CN 200520069556
Authority: CN
Inventors: 张国梁; 周建伟; 王克军
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-05
Filing date: 2005-03-05
Publication date: 2006-04-05
Anticipated expiration: 2015-03-05

Abstract

The utility model discloses a high-precision four-directional equal-loaded rolling linear guide rail pair which comprises a lead rail (1), a slipper (2), steel balls (3) and a return unit (4), wherein the lead rail (1) is provided with an inner circular arc slideway (11), and the slider (2) is provided with a slide pore (21). The return unit (4) is provided with a reversal pore (41) and the slider (2) is sheathed on the lead rail (1). The slide pore (21), the reversal pore (41) and the inner circular arc slideway (11) form a circuit. The utility model is characterized in that the circuit formed by the slide pore (21), the reversal pore (41) and the inner circular arc slideway (11) is provided with an elastic ring chain (5). The steel balls (3) are inlaid in a chain ring (51) of the elastic ring chain (5) in order to make the steel balls (3) align orderly to form a drag chain rolling element (31). The steel balls of the linear guide rail pair generates no overheat because of friction, and the utility model has high precision, even linear velocity and long service life.

Description

The High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair

Technical field

The utility model relates to a kind of mechanical transmissioning technology, more specifically to a kind of mechanical transmission linear guide pairs.

Background technique

In the four directions to etc. in the load linear rolling guide, guide rail is done straight reciprocating motion in slide block, main is the motion of steel ball by the rolling element of putting in the raceway between guide rail and slide block, at present, these rolling elements are to be arranged in due order by the steel ball of nude, fill whole raceway, do not have between the steel ball at interval, when slide block moved on linear rail, steel ball rolled thereupon, owing to arrange between the steel ball closely, thereby easily produce friction between steel ball and generate heat, the one, steel ball body wear aggravation descends the bulk life time of linear rolling guide, the 2nd, because of friction-produced overheated, make the precise decreasing of linear rolling guide, the 3rd, because arranging, steel ball is difficult to the state of being in line, the steel ball motion is snakelike state, has influenced the linear velocity of linear rolling guide.

Summary of the invention

The utility model technical issues that need to address are, overcome existing four directions to etc. the existing deficiency of load linear rolling guide, provide between a kind of steel ball that to be difficult for producing friction overheated, the precision of linear rolling guide is improved, linear velocity evenly, the High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair of long service life.

The technical scheme in the invention for solving the technical problem is: a kind of High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair, comprise guide rail, slide block, steel ball, the back device, arc chute in being equipped with on the above-mentioned guide rail, be equipped with slide opening on the above-mentioned slide block, above-mentioned slide block both sides are equipped with the back device, be equipped with the back hole on the above-mentioned back device, above-mentioned slide opening communicates with back hole on the back device, above-mentioned slide block is placed on the above-mentioned guide rail, above-mentioned slide opening, the back hole, interior arc chute forms the loop, difference is, above-mentioned slide opening, the back hole, interior arc chute forms the mid-flexible loop chain in loop, above-mentioned steel ball is embedded in the chain link of above-mentioned elasticity loop chain, steel ball is arranged in order forms drag chain shape rolling element.

The chain link inboard of above-mentioned elasticity loop chain is equipped with oil storage chamber, is equipped with lubricant grease in the above-mentioned oil storage chamber.

Above-mentioned elasticity loop chain is plastics.

Above-mentioned elasticity loop chain is a rubber.

Above-mentioned elasticity loop chain is a rubber-plastics material.

The advantage that High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair of the present utility model has compared with prior art is as follows:

This High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair, when slide block is reciprocating on guide rail, steel ball rotates in chain link and promotes slide block movement, steel ball places the chain link of elasticity loop chain, and chain link and chain link connecting place at the elasticity loop chain are equipped with oil storage chamber, be equipped with lubricant grease in the oil storage chamber, be difficult for producing phenomenons such as collision, friction, heating between steel ball and steel ball, the steel ball body is not easy to wear, and lubricate between steel ball slide opening, sliding chamber, it is little to rub, the long service life of linear rolling guide, precision improves, and noise is low; Because steel ball places the chain link of elasticity loop chain, the steel ball state that is arranged in a straight line, and makes the linear velocity of this linear rolling guide even, motion steadily; Reduce the steel ball consumption, the steel ball face is pressed and is reduced, and has improved motion speed.

Description of drawings

Fig. 1 is the utility model High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair's a structural representation;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the B-B sectional view of Fig. 2;

Fig. 4 is the partial enlarged drawing of the rolling element analysed and observe of the C-C of Fig. 3.

Embodiment

Below in conjunction with accompanying drawing the utility model High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair is further described.

Above-mentioned High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair shown in Fig. 1-4, comprise guide rail 1, slide block 2, steel ball 3, back device 4, arc chute 11 in being equipped with on the above-mentioned guide rail 1, be equipped with slide opening 21 on the above-mentioned slide block 2, above-mentioned slide block 2 both sides are equipped with back device 4, be equipped with back hole 41 on the above-mentioned back device 4, above-mentioned slide opening 21 communicates with back hole 41 on the back device 4, above-mentioned slide block 2 is placed on the above-mentioned guide rail 1, above-mentioned slide opening 21, back hole 41, interior arc chute 11 forms the loop, difference is, above-mentioned slide opening 21, back hole 41, interior arc chute 11 forms the mid-flexible loop chain 5 in loop, above-mentioned steel ball 3 is embedded in the chain link 51 of elasticity loop chain 5, steel ball 3 is arranged in order forms drag chain shape rolling element 31.Chain link 51 inboards of above-mentioned elasticity loop chain 5 are equipped with oil storage chamber 52, are equipped with lubricant grease in the above-mentioned oil storage chamber 52.Above-mentioned elasticity loop chain 5 is plastics or rubber or is rubber-plastics material.

When slide block was reciprocating on guide rail, steel ball rotated in chain link, made closed loop moving by the back device, promoted the slide block action.

Claims

1, a kind of High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair, comprise guide rail (1), slide block (2), steel ball (3), back device (4), arc chute (11) in being equipped with on the above-mentioned guide rail (1), be equipped with slide opening (21) on the above-mentioned slide block (2), above-mentioned slide block (2) both sides are equipped with back device (4), be equipped with back hole (41) on the above-mentioned back device (4), above-mentioned slide opening (21) communicates with back hole (41) on the back device (4), above-mentioned slide block (2) is placed on the above-mentioned guide rail (1), above-mentioned slide opening (21), back hole (41), interior arc chute (11) forms the loop, it is characterized in that: above-mentioned slide opening (21), back hole (41), interior arc chute (11) forms the mid-flexible loop chain in loop (5), above-mentioned steel ball (3) is embedded in the chain link (51) of elasticity loop chain (5), steel ball (3) is arranged in order forms drag chain shape rolling element (31).

2, High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair according to claim 1 is characterized in that: chain link (51) inboard of above-mentioned elasticity loop chain (5) is equipped with oil storage chamber (52), and above-mentioned oil storage chamber is equipped with lubricant grease in (52).

3, High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair according to claim 1 is characterized in that: above-mentioned elasticity loop chain (5) is plastics.

4, High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair according to claim 1 is characterized in that: above-mentioned elasticity loop chain (5) is a rubber.

5, High-Precision Four-Direction Equal-Loaded Rolling Linear Guide Rail Pair according to claim 4 is characterized in that: above-mentioned elasticity loop chain (5) is a rubber-plastics material.