TWM586187U - Linear sliding track - Google Patents

Abstract

A linear slide rail mainly includes: a slide rail, a slide block, a first end cover, a second end cover, a plurality of steel balls, and a retainer unit. The slide rail, slide block, and first end cover At least one circulation path is formed together with the second end cap. The first end cap has a first lubrication path, a first oil inlet and a first oil outlet, and the second end communicates with the circulation path. The cover has a second lubrication path and a second oil outlet that communicate with the circulation path. The retainer unit has an upper retainer that has an axially communicating oil passage that communicates with the oil passage. The first oil outlet of the first end cover communicates with the second oil outlet of the second end cover; the lubricant is injected through the first oil inlet of the first end cover to reach the first end at the second end. The steel balls in the cap and the second end cap are lubricated.

Description

Linear slide

This creation is related to linear slide rails, and more specifically refers to a linear slide rail that can be lubricated with single-end oil for double-end lubrication.

According to the general linear slide rail, it is mainly composed of a slide rail, a slider slidingly connected to the slide rail, two end covers attached to the two ends of the slider, and two separate end covers and The cover between the two ends of the slider and a number of steel balls are composed of at least one circulation loop for the steel balls to be formed between the slide rail, the slider, the two covers, and the two end covers, so as to perform infinite circulation rolling .
However, the steel balls need to be lubricated to maintain smooth rolling. Therefore, a lubrication path, an oil inlet connecting the outside and the lubrication path, and an oil outlet connecting the lubrication path and the circulation circuit are generally provided on one of the end caps, so that an external oil injector passes the lubricant through the The oil inlet, lubrication path, and oil outlet are introduced into the circulation circuit to lubricate the steel balls.
However, for a linear slide rail with short stroke operation, due to the extremely short stroke of its reciprocating displacement, only the steel ball adjacent to the end cap injected with lubricant can obtain lubrication, and the steel ball adjacent to the other end cap, Because the stroke is too short to pass the end cap filled with lubricating oil, it is impossible to obtain effective lubrication, and it is prone to malfunction.

In view of this, in order to improve the linear slide of short stroke operation in the prior art, it is known that the steel ball lubrication is not comprehensive enough, and it is easy to have the problem of poor smooth operation; therefore, this creation is to provide a linear slide. It includes: a slide rail; a slider that is in sliding contact with the slide rail; a first end cover that is attached to one end of the slider; the first end cover has a first lubrication path and a communication A first oil inlet from the first lubrication path to the outside and a first oil outlet connected to the first lubrication path; a second end cap is attached to the other end of the slider, and the second end The cover has a second lubrication path and a second oil outlet that communicates with the second lubrication path; the slide rail, the slider, the first end cover and the second end cover together form at least one circulation path, the circulation path And communicated with the first lubrication path and the second lubrication path; a number of steel balls are arranged in the circulation path to perform infinite circulation rolling; a retainer unit is disposed between the slider and the slide rail, To keep these steel balls in the circulation path, The holder unit has an upper holder, which is connected between the first end cover and the second end cover. The upper holder has a communication oil passage passing through the axial direction, so that the communication oil passage and the The first oil outlet of the first end cover and the second oil outlet of the second end cover communicate with each other; thereby the lubricating effect of both ends of the steel balls can be achieved by the single-end input of lubricating oil.
This creation also provides another linear slide rail, which mainly includes: a slide rail; a slider that is in sliding contact with the slide rail; a first end cover that is attached to one end of the slider; the first One end cap has a first lubrication path, a first oil inlet connecting the first lubrication path to the outside, and a first oil outlet connecting the first lubrication path. A second end cap is attached to the first cap. On the other end of the slider, the second end cover has a second lubrication path and a second oil outlet that communicates with the second lubrication path; a first cover plate is disposed between the first end cover and the Between the sliders; a second cover plate is disposed between the second end cover and the slider; the slide rail, the slider, the first end cover, the second end cover, the first cover and the second cover At least one circulation path is formed between the plates, and the circulation path is in communication with the first lubrication path and the second lubrication path; a plurality of steel balls are arranged in the circulation path to perform infinite circulation rolling; a holder The unit is arranged between the slider and the slide rail to keep the steel balls in the circulation path. The unit has an upper holder having a first holding portion and a second holding portion. The first holding portion is integrally extended outward from the inner side surface of the first cover plate. The first holding portion There is a first communication oil passage extending axially, a free end surface of the first holding portion has a first joint portion, and the second holding portion extends outward from the inner side surface of the second cover plate as a whole. Therefore, the second holding portion has a second communication oil passage extending axially, a free end surface of the second holding portion has a second joint portion, and the second joint portion is connected and combined with the first joint portion. The first communicating oil passage communicates with the second communicating oil passage, the first communicating oil passage communicates with the first oil outlet, and the second communicating oil passage communicates with the second oil outlet; The single-ended input of lubricating oil can lubricate the double-ended steel balls.

In order to allow your reviewers to further understand and agree with the features and characteristics of this creation, the following preferred embodiments are listed with illustrations as follows:
Please refer to the first to fifth figures, which are linear slide rails 1 provided by the first preferred embodiment of the present invention, which mainly include a slide rail 11, a slider 12, a first end cover 13, and The second end cover 14, a first cover plate 15, a second cover plate 16, a plurality of steel balls 17, and a holder unit 18, of which:
Please refer to the first to fifth figures. The slide rail 11 is a long strip-shaped rail piece extending linearly.
Please refer to the first to fifth figures. The slider 12 is in sliding contact with the slide rail 11 and can be linearly reciprocated relative to the slide rail 11 by external force.
Referring to the first to fifth figures, the first end cover 13 is attached to one end of the slider 12. The first end cover 13 has a first lubrication path 131 and a communication path to the first lubrication path. A first oil inlet 132 to the outside, a first oil outlet 133 and a first slot 134 connecting the first lubrication path 131 to the outside.
Please refer to the first to fifth figures. The second end cap 14 is attached to the other end of the slider 12. The second end cap 14 has a second lubrication path 141 and a second lubrication path. A second oil inlet 142 from the path 141 to the outside, a second oil outlet 143 and a second slot 144 connecting the second lubrication path 141 to the outside.
Please refer to the first to fifth figures. The first cover 15 is disposed between the first end cover 13 and the slider 12. The first cover plate 15 has a first through hole 151. The first through hole 151 is located between the first lubrication path 131 and the first oil outlet 133 to maintain the first lubrication path 131 and the first lubrication path 131. One outlet 133 is open.
Please refer to the first to fifth figures. The second cover 16 is disposed between the second end cover 14 and the slider 12. The second cover plate 16 has a second through hole 161, which is located between the second lubrication path 141 and the second oil outlet 143 to maintain the second lubrication path 141 and the first lubrication path 141. The two oil outlets are open. At least one circulation path 19 is formed between the slide rail 11, the slider 12, the first end cover 13, the second end cover 14, the first cover plate 15 and the second cover plate 16, and the first lubrication path The two sides of 131 are respectively connected to the circulation paths 19 on both sides, and the two sides of the second lubrication path 141 are respectively connected to the circulation paths 19 on both sides.
Please refer to the first to fifth figures. The steel balls 17 are arranged in the circulation path 19 to perform an infinite circulation rolling.
Please refer to the first to fifth figures. The retainer unit 18 is disposed between the slider 12 and the slide rail 11 to restrict the steel balls 17 to keep the steel balls 17 in the circulation path 19. . The holding unit 18 has an upper holder 181, two middle holders 182, and two lower holders 183. The upper holder 181 is located between the top surface of the slide rail 11 and the slider 12, and the upper holder 181 There is a communication oil passage 184 penetrating in the axial direction. In this embodiment, the communication oil passage 184 extends from the top surface of the upper retainer 181 and is recessed in the axial direction. The two ends of the upper holder 181 have a first insertion portion 185 and a second insertion portion 186, respectively. The first insertion portion 185 is inserted into the first slot 134 of the first end cover 13. The two insertion portions 186 are inserted into the second slot 144 of the second end cover 14, so that the communication oil passage 184 passes through the first through hole 151 and the second through hole 161 and is respectively connected to the first end cover 13. The first oil outlet 133 and the second oil outlet 143 of the second end cap 14 communicate with each other.
Therefore, the above is the introduction of the components of the linear slide rail 1 and its assembly method provided by the first preferred embodiment of the creation, and then its use characteristics are introduced as follows:
First, lubricating oil is introduced from a first oil inlet 132 of the first end cover 13 through an oil injector (not shown), so that the lubricating oil passes through the first lubrication path 131 of the first end cover 13 and enters the The circulation path 19 is led out from the first oil outlet 133, so that not only the steel balls 18 located near the periphery of the first end cover 13 can be lubricated, but also the lubricating oil can be passed through the first oil outlet 133. The oil passage 184 of the holder 181 is conveyed to the second oil outlet 143 of the second end cover 14, and then enters the second lubrication path 141 from the second oil outlet 143, and then passes through the second lubrication path. 141 enters the circulation path 19 located around the periphery of the second end cover 14 to lubricate the steel balls 17 located around the periphery of the second end cover 14.
As a result, the lubricating oil inputted from the single end (first end cap) of the present invention can be transported to the other end (second end cap) through the communication oil passage 184 opened from the upper holder 181, so that The steel balls in both ends can be lubricated. For short-stroke linear slides, it can achieve comprehensive and extensive lubrication and increase smoothness.
In addition, although the above is performed from the first oil inlet of the first end cap for oil injection. However, in fact, oil can also be injected from the second oil inlet of the second end cap, which can all achieve the same effect.
Secondly, as shown in the fourth and fifth figures, the first end cover 13 further has a first blocking portion 135, and the first blocking portion 135 is located in the first lubrication path 131 and is located in the first Between the oil inlet 132 and the first oil outlet 133, and the width of the first blocking portion 135 is larger than the width of the first oil outlet 133, so that when the lubricating oil enters the first lubrication path 131, The first blocking portion 135 can be appropriately diverted, so that when lubricating oil is injected, the first blocking portion 135 can be used to flow to both sides to lubricate the steel balls 17 and then to the first portion. The oil outlet 133 flows to prevent the accumulation of lubricating oil and to maintain the smoothness of the lubricated steel balls. The second end cover 14 further has a second blocking portion 145. The second blocking portion 145 is located in the second lubrication path 141 and is located between the second oil inlet 142 and the second oil outlet 143. Moreover, the width of the second blocking portion 145 is greater than the width of the second oil outlet 143, and its effect is the same as that of the first blocking portion 135, which will not be described again. It is worth mentioning that when the lubricating oil is transported to the other end (second end cover 14) through the communicating oil passage 184, the lubricating oil will flow out from the second oil outlet 143 and pass through the second stop The shunting action of the portion 145 flows to both sides to lubricate the steel balls 17.
Furthermore, although in the above embodiment, one of the first insertion portion and one second insertion portion of the two ends of the upper holder are respectively inserted into the first slot of the first end cover and the second end cover, In the second slot. However, in fact, the two ends of the upper holder can also be a first slot and a second slot, respectively, and the first end cover is a first insertion portion, and the second end cover is a second insertion portion. It can also achieve the effect of plug connection.
Although in the above embodiment, the first cover plate and the second cover plate are included. However, in practice, the first cover plate and the second cover plate are not necessary components, and may be omitted in some types of linear slide rails.
Please refer to FIG. 6 to FIG. 8, which are linear slide rails 2 provided by the second preferred embodiment of the present invention. The linear slide rails 2 include a slide rail 21, a slider 22, and a first end cover 23. , A second end cover 24, a first cover plate 25, a second cover plate 26, a number of steel balls 27, and a retainer unit 28, but the main differences between the two are:
In this embodiment, the holder 281 on the holder unit 28 has a first holding portion 282 and a second holding portion 283. The first holding portion 282 extends from the inner surface of the first cover plate 25 along the axial direction of the slider 22 integrally and outwardly and is located between the top surface of the slide rail 21 and the slider 22. The portion 282 has a first communication oil passage 284 extending axially. In this embodiment, the first communication oil passage 284 extends from the top surface of the first holding portion 282 and is recessed in the axial direction. A free end surface of a holding portion 282 has a first joint portion 286. The second holding portion 283 is formed by integrally extending outward from the inner side surface of the second cover plate 26 along the axial direction of the slider 22 and is located on the Between the top surface of the slide rail 21 and the slider 22, the second holding portion 283 has a second communication oil passage 285 extending axially. In this embodiment, the second communication oil passage 285 is connected to the second holding The top surface of the portion 283 is recessed and extended in the axial direction. A free end surface of the second holding portion 283 has a second joint portion 287. The second joint portion 287 is connected to the first joint portion 286 so that The first communication oil passage 284 and the second communication oil passage 285 communicate with each other. Although the structure of this embodiment is slightly different from the foregoing embodiment, the same effect can still be achieved.
Secondly, the first joint portion may be at least one convex portion, and the second joint portion may be at least one groove. Or the first joint portion may be at least one groove, and the second joint portion may be at least one convex portion. The effect of connecting and combining the first joint portion and the second joint portion is achieved through the insertion of the convex portion and the groove.
In addition, in the above embodiment, the first cover plate and the second cover plate are combined with the slider after being formed. However, as shown in the ninth figure, in fact, the first cover plate 25, the second cover plate 26, the first holding portion 282, and the second holding portion 283 can also be covered and injected, and directly formed When combined with the two ends of the slider 22, it can also achieve the desired effect of this creation.
The above disclosure is only the preferred embodiment provided by this creation, and is not intended to limit the scope of implementation of this creation. Any equal change in the relevant artisans in this technical field according to this creation shall belong to this creation. Coverage.

"First embodiment"

1‧‧‧ linear slide

11‧‧‧ Slide

12‧‧‧ Slider

13‧‧‧first end cap

131‧‧‧First lubrication path

132‧‧‧First oil inlet

133‧‧‧First oil outlet

134‧‧‧First Slot

135‧‧‧First stop

14‧‧‧Second end cap

141‧‧‧Second lubrication path

134‧‧‧Second oil inlet

143‧‧‧Second oil outlet

144‧‧‧Second Slot

145‧‧‧Second stop

15‧‧‧first cover

151‧‧‧first through hole

16‧‧‧Second cover

161‧‧‧second through hole

17‧‧‧steel ball

18‧‧‧ retainer unit

181‧‧‧Upper retainer

184‧‧‧ Connected to the oil channel

185‧‧‧The first plug

186‧‧‧Second Insertion Department

182‧‧‧ Medium retainer

183‧‧‧ Lower holder

19‧‧‧Circular path

`` Second Embodiment ''

2‧‧‧ linear slide

21‧‧‧Slide

22‧‧‧ Slider

23‧‧‧first end cap

24‧‧‧Second end cap

25‧‧‧First cover

26‧‧‧Second cover

27‧‧‧steel ball

28‧‧‧ retainer unit

281‧‧‧Upper retainer

282‧‧‧First holding department

284‧‧‧The first communication oil channel

286‧‧‧first joint

283‧‧‧Second Holding Department

285‧‧‧Second communication oil channel

287‧‧‧second joint

The first figure is an exploded perspective view of the first preferred embodiment provided by the author.
The second figure is a three-dimensional combined view of the embodiment shown in the first figure.
The third figure is a sectional view taken along line 3-3 of the second figure.
The fourth figure is a sectional view taken along line 4-4 of the second figure.
The fifth figure is a cross-sectional view taken along line 5-5 of the second figure.
The sixth figure is an exploded perspective view of the second preferred embodiment provided by the author.
The seventh figure is a three-dimensional combined view of the embodiment shown in the sixth figure.
The eighth figure is a sectional view taken along the line 8-8 of the seventh figure.
The ninth figure is an exploded perspective view of another embodiment of the preferred embodiment shown in the sixth figure.

Claims (10)

A linear slide rail, which mainly includes:
A slide rail
A slider is in sliding contact with the slide rail;
A first end cap is attached to one end of the slider. The first end cap has a first lubrication path, a first oil inlet port connecting the first lubrication path to the outside, and a first oil port. The first oil outlet of the lubrication path;
A second end cap is attached to the other end of the slider, the second end cap has a second lubrication path and a second oil outlet communicating with the second lubrication path;
At least one circulation path is formed between the slide rail, the slider, the first end cover, and the second end cover, and the circulation path is in communication with the first lubrication path and the second lubrication path;
A number of steel balls are arranged in the circulation path to perform infinite circulation rolling;
A retainer unit is provided between the slider and the slide rail to keep the steel balls in the circulation path. The retainer unit has an upper retainer which is connected to the first end cover. Between the second end cap and the second end cap, the upper retainer has an axially communicating oil passage so that the communicating oil path and the first oil outlet of the first end cap and the second oil outlet of the second end cap Connected. According to the linear slide rail described in item 1 of the scope of patent application, wherein the second end cover further has a second oil inlet and a second stopper that communicates the second lubrication path to the outside, and the second stopper Is located in the second lubrication path and is located between the second oil inlet and the second oil outlet; the first end cover further has a first stop portion, and the first stop portion is located in the first In the lubrication path, it is located between the first oil inlet and the first oil outlet. According to the linear slide rail described in item 2 of the patent application scope, wherein the width of the second stop is larger than the width of the second oil outlet; the width of the first stop is larger than the width of the first oil outlet width. According to the linear slide rail described in item 1 of the scope of the patent application, wherein the communicating oil passage is formed by the top surface of the upper retainer extending in an axial depression. According to the linear slide rail described in item 1 of the scope of patent application, wherein the two ends of the upper holder have a first insertion portion and a second insertion portion, respectively; the first end cover further has a first slot; The second end cover further has a second slot; the first insertion portion of the upper holder is inserted into the first slot of the first end cover, and the second insertion portion is inserted into the first slot Into the second slot of the two end cap. The linear slide rail according to item 1 of the scope of patent application, further comprising a first cover plate and a second cover plate. The first cover plate is disposed between the first end cover and the slider. Two cover plates are disposed between the second end cover and the slider, and the slide rail, the slider, the first end cover, the second end cover, the first cover, and the second cover jointly form the at least one cycle. Path, the first cover plate has a first through hole; the second cover plate has a second through hole; one end of the communication oil passage communicates with the first oil outlet through the first through hole and the other end And communicate with the second oil outlet through the second through hole. A linear slide rail, which mainly includes:
A slide rail
A slider is in sliding contact with the slide rail;
A first end cap is attached to one end of the slider. The first end cap has a first lubrication path, a first oil inlet port connecting the first lubrication path to the outside, and a first oil port. The first oil outlet of the lubrication path;
A second end cap is attached to the other end of the slider, the second end cap has a second lubrication path and a second oil outlet communicating with the second lubrication path;
A first cover plate is disposed between the first end cover and the slider;
A second cover plate is disposed between the second end cover and the slider; the slide rail, the slider, the first end cover, the second end cover, the first cover, and the second cover are jointly formed. There is at least one circulation path which is in communication with the first lubrication path and the second lubrication path;
A number of steel balls are arranged in the circulation path to perform infinite circulation rolling;
A retainer unit is disposed between the slider and the slide rail to keep the steel balls in the circulation path. The retainer unit has an upper retainer, and the upper retainer has a first retaining portion and a first retaining portion. Two holding portions, the first holding portion is integrally extended outward from the inner side surface of the first cover plate, the first holding portion has a first communication oil passage extending axially, and the first holding portion The free end surface has a first joint portion, the second holding portion is integrally extended outward from the inner side surface of the second cover plate, the second holding portion has a second communication oil passage extending axially, A free end surface of the second holding portion is provided with a second joint portion, the second joint portion is connected with the first joint portion, the first communication oil passage and the second communication oil passage communicate with each other, and The first communication oil passage is in communication with the first oil outlet, and the second communication oil passage is in communication with the second oil outlet. According to the linear slide rail described in item 7 of the scope of the patent application, wherein the second end cover further has a second oil inlet and a second stopper that communicates the second lubrication path to the outside, and the second stopper Is located in the second lubrication path and is located between the second oil inlet and the second oil outlet; the first end cover further has a first stop portion, and the first stop portion is located in the first In the lubrication path, it is located between the first oil inlet and the first oil outlet. According to the linear slide rail described in item 8 of the scope of patent application, wherein the width of the second stop is larger than the width of the second oil outlet; the width of the first stop is larger than the width of the first oil width. According to the linear slide rail described in item 7 of the scope of patent application, wherein the first cover plate has a first through hole; the second cover plate has a second through hole; one end of the first communication oil passage is It communicates with the first oil outlet through the first through hole, and one end of the second communication oil passage communicates with the second oil outlet through the second through hole.