CN219774721U - Lubrication retaining device and sliding table applied by same - Google Patents

Abstract

The utility model discloses a lubrication retaining device and a sliding table applied to the lubrication retaining device, wherein the lubrication retaining device comprises an end cover, a return device and a first oil guide piece, the end cover is arranged at the end part of a sliding block of a linear sliding rail, an oil storage cavity is arranged in the end cover, one part of the first oil guide piece is arranged between the end cover and the sliding block, the other part of the first oil guide piece is positioned in the oil storage cavity, the first oil guide piece is communicated with a return hole on the return device and used for guiding lubricating oil in the oil storage cavity into the return hole, and the lubrication retaining device comprises the following components. The utility model provides a lubrication retaining device, which is characterized in that a first oil guide piece for guiding lubricating oil in an oil storage cavity into a backflow hole is additionally arranged on an end cover to lubricate balls in a circulation channel, so that the phenomenon of air drying and solidification of the lubricating oil is not easy to occur when the lubricating oil is not used for a long time, and the labor cost is reduced.

Description

Lubrication retaining device and sliding table applied by same

Technical Field

The utility model relates to the technical field of lubrication retaining devices, in particular to a lubrication retaining device and a sliding table applied to the lubrication retaining device.

Background

The electric cylinder is a linear driving device and mainly consists of a sliding table, a sliding rail, balls, a screw rod and other parts. The sliding table is a main component of the electric cylinder, and a channel for ball flow is formed between the sliding table and the sliding rail. The sliding table is internally provided with a channel for the balls to flow back, so that the balls can circularly roll without obstruction in the sliding process. The working mode of the electric cylinder is that the sliding table is driven to do linear motion along the sliding rail through the rotary motion of the screw rod. The sliding direction of the sliding table can be adjusted according to the rotating direction of the screw rod so as to adapt to different working scenes. The ball lubrication can reduce friction between the balls and the sliding rail, and reduce friction resistance of the sliding table, so that the movement speed and precision of the sliding table are improved, and the service life of the sliding table is prolonged.

Grease lubrication is the most common ball lubrication mode in the prior art, can provide good lubrication effect, but is not used for a long time, and grease at an oil outlet is easy to air-dry and solidify to cause blockage, so that periodic maintenance is required. The existing liquid lubrication can provide better lubrication effect, but a special liquid lubrication system is needed, and the cost is high.

Disclosure of Invention

The present utility model aims to solve one of the technical problems in the related art to a certain extent. Therefore, the utility model provides the lubrication retaining device, which is characterized in that the first oil guide piece for guiding the lubricating oil in the oil storage cavity to the backflow hole is additionally arranged on the end cover so as to lubricate the balls in the circulation channel, so that the phenomenon of air drying and solidification of the lubricating oil is not easy to occur when the lubricating oil is not used for a long time, and the labor cost is reduced.

The utility model also provides a sliding table applying the lubrication retaining device.

The technical scheme adopted by the utility model is as follows: the utility model provides a lubrication retainer, includes end cover, back-flow device and first oil guide, the end cover sets up in the slider tip of linear slide rail, have the oil storage chamber in the end cover, a part of first oil guide set up in between end cover and the slider, another part is located the oil storage chamber, just first oil guide communicates with the backward flow hole on the back-flow device, is used for with lubricating oil in the oil storage chamber is directed to in the backward flow hole.

The oil immersed lubrication is adopted to continuously lubricate the balls, the principle is that the first oil guide piece is used as a medium of lubricating oil, as a part of the first oil guide piece is immersed into the lubricating oil in the oil storage cavity, the inside of the first oil guide piece can absorb the lubricating oil, and then the lubricating oil is conveyed into a reflow hole contacted with the bearing balls through capillary action or siphon action, so that a layer of lubricating oil film is formed on the surfaces of the balls, and the effects of lubrication and friction reduction are achieved. Compared with grease lubrication in the prior art, the lubricating oil is not easy to generate the phenomenon of air drying and solidification when not used for a long time, and the labor cost is reduced. Thus, the use of liquid lubricating oil can improve the reliability and stability of the apparatus.

According to one embodiment of the utility model, the end cover is provided with a first end far away from the sliding block and a second end close to the sliding block, the oil storage cavity is arranged on the first end of the end cover, the second end of the end cover is provided with a first mounting groove, and a communication hole on the end cover is used for communicating the oil storage cavity with the first mounting groove; the oil storage cavity is arranged at the end cover position, so that the flow path from the oil storage cavity to the backflow hole can be effectively reduced, and the oil inlet stroke is shortened.

According to one embodiment of the present utility model, the first oil guide includes an oil suction portion located in the oil storage chamber, a first output portion located in the first installation groove, and a communication portion adapted to the communication hole.

According to one embodiment of the utility model, the return device is provided with an oil guide groove, the oil guide groove and the end cover are combined to form an oil guide channel, and lubricating oil precipitated at the first output part flows to the backflow hole through the oil guide channel; the lubricating oil precipitated from the first output part enters into the backflow hole through the oil guide channel to contact with the balls under the capillary action.

According to one embodiment of the utility model, the return device is provided with an oil guide groove, the oil guide groove and the end cover are combined to form an oil guide channel, the first oil guide piece is further provided with an extension part connected with the first output part, the extension part is matched with the oil guide channel, and the free end of the extension part extends into the backflow hole.

According to one embodiment of the utility model, a second oil guide is arranged in the oil storage cavity, and a plurality of second output parts of the second oil guide extend out of the end cover through a first notch on the end cover and are used for guiding lubricating oil in the oil storage cavity to be in contact with the screw rod; under the capillary action, the lubricating oil in the oil storage cavity is directly guided to the screw rod to be contacted through the medium of the second oil guide piece, so that the screw rod is lubricated, and the friction force between the screw rod and the end cover and/or the sliding block is reduced.

According to one embodiment of the utility model, a transition groove is arranged between the first notch and the oil storage cavity, and part of the second output part is positioned in the transition groove; the transition groove is used for prolonging the stroke of the lubricating oil in the oil storage cavity to be output to the second output part, and the lubricating oil overflowed from the second output part can be stored in the transition groove.

According to one embodiment of the utility model, a third oil guide is arranged at the second end of the end cover, and a plurality of third output parts of the third oil guide extend out of the end cover through second gaps on the end cover and are used for guiding lubricating oil in the oil storage cavity to be in contact with the screw rod; under the capillary action, the lubricating oil in the oil storage cavity is directly guided to the screw rod to be contacted through the medium of the third oil guide piece, so that the screw rod is lubricated, and the friction force between the screw rod and the end cover and/or the sliding block is reduced.

According to one embodiment of the utility model, the second end of the end cover is provided with a second mounting groove matched with the third oil guide piece, and the second mounting groove is communicated with the oil storage cavity through a through hole at the bottom of the groove; the lubricating oil in the oil storage cavity passes through the third oil guide member passing through Kong Jinrun.

A slip comprising a lubrication retainer as claimed in any one of the preceding claims.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a perspective view of a slide table according to an embodiment of the present utility model;

FIG. 2 is a perspective view of a first end of a lubrication retainer according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a lubrication retainer according to an embodiment of the present utility model;

FIG. 4 is a perspective view of a second end of a lubrication retainer according to an embodiment of the present utility model;

FIG. 5 is a perspective view of a first oil guide according to an embodiment of the present utility model;

FIG. 6 is an enlarged view of a portion of FIG. 4 at A;

FIG. 7 is a perspective view of a first oil guide according to another embodiment of the present utility model;

FIG. 8 is an enlarged view of a portion of another embodiment of the present utility model;

FIG. 9 is a perspective view of the end cap with the first cover plate removed in accordance with an embodiment of the present utility model;

FIG. 10 is a perspective view of the second end of the end cap according to an embodiment of the present utility model;

FIG. 11 is a perspective view of a first end of an end cap with a first oil guide installed thereon in accordance with an embodiment of the present utility model;

FIG. 12 is a perspective view of a first end of an end cap with first and second oil guides according to an embodiment of the present utility model;

FIG. 13 is a perspective view of a reverser according to an embodiment of the present utility model;

FIG. 14 is a perspective view of a second end of a lubrication retainer according to a further embodiment of the present utility model;

FIG. 15 is an exploded view of a lubrication retainer according to yet another embodiment of the present utility model;

FIG. 16 is a perspective view of a second end of a lubrication retainer according to another embodiment of the present utility model;

fig. 17 is an exploded view of a lubrication retainer according to another embodiment of the present utility model.

The reference numerals in the figures illustrate:

1. a slide block; 2. an end cap; 3. a first cover plate; 4. a reverser; 5. a first oil guide; 6. a second oil guide; 7. a sealing plug; 8. a second cover plate; 9. a third oil guide;

21. an oil storage chamber; 22. a communication hole; 23. a mounting part; 24. a transition groove; 25. a first notch; 26. a first mounting groove; 27. an oil inlet; 28. a second mounting groove;

28a, through holes; 28b, a second notch;

41. a reflow hole; 42. an oil guiding groove;

51. an oil suction part; 52. a communication section; 53. a first output section; 54. an extension;

61. a second output section;

91. and a third output unit.

Description of the embodiments

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

As shown in fig. 1 to 17, in this embodiment, a lubrication holding device is disclosed, which includes an end cap 2, a return 4 and a first oil guide 5, the end cap 2 is disposed at the end of a slider 1 of a linear sliding rail, an oil storage cavity 21 is provided in the end cap 2, a part of the first oil guide 5 is disposed between the end cap 2 and the slider 1, another part is disposed in the oil storage cavity 21, and the first oil guide 5 is in communication with a return hole 41 on the return 4, so as to guide the lubricating oil in the oil storage cavity 21 into the return hole 41.

Further, in the present embodiment, the end caps 2 are detachably mounted at both ends of the slider 1, and the end caps 2 and the slider 1 are combined to form a slide table structure. Grooves are formed on two sides of the sliding block 1 and the end cover 2, the grooves and the sliding rail are combined to form a ball channel, a return channel for the balls to flow back is formed inside the sliding block 1, a return device 4 is arranged on the end cover 2, and the return device 4 is used for communicating the ball channel with the return channel to form a circulation channel. As shown in fig. 13, since both sides of the slider 1 have circulation passages, respectively, the corresponding return 4 has two reverse structures.

Further, in this embodiment, the first oil guide 5 is made of foam, and two first oil guides 5 are symmetrically installed on the end cover 2 in a left-right manner as shown in fig. 4-6. The end cover 2 is provided with a first end far away from the sliding block 1 and a second end close to the sliding block 1, the oil storage cavity 21 is arranged on the first end of the end cover 2, the second end of the end cover 2 is provided with a first mounting groove 26, and the communication hole 22 on the end cover 2 communicates the oil storage cavity 21 with the first mounting groove 26. The first oil guide 5 includes an oil suction portion 51 located in the oil reservoir 21, a first output portion 53 located in the first mounting groove 26, and a communication portion 52 adapted to the communication hole 22.

Further, when the end cap 2 is mounted on the end of the slider 1, the first mounting groove 26 forms a channel structure in combination with the slider 1, fixing the first output portion 53 between the end cap 2 and the slider 1. As shown in fig. 9, a mounting portion 23 is provided in the oil storage chamber 21, the oil suction portion 51 is mounted on the mounting portion 23, and the mounting portion 23 serves as a supporting structure to suspend the oil suction portion 51 with respect to the bottom of the oil storage chamber 21 so that the entire body of the oil suction portion 51 can be sufficiently contacted with the lubricating oil.

Further, in this embodiment, the end cap 2 is integrally molded by injection molding, the oil storage cavity 21 is injection molded to form an opening structure, the end cap 2 is connected to the first cover plate 3 by ultrasonic welding, and the first cover plate 3 seals the opening to make the oil storage cavity 21 a closed space. An oil inlet 27 is correspondingly formed in the end cover 2, and the oil inlet 27 is plugged by the sealing plug 7.

Specifically, as shown in fig. 5-6, in this embodiment, the return device 4 is provided with an oil guiding groove 42, the oil guiding groove 42 and the end cover 2 are combined to form an oil guiding channel, the end of the first output portion 53 is communicated with the return hole 41 through the oil guiding channel, and the lubricating oil precipitated by the first output portion 53 flows to the return hole 41 through the oil guiding channel, so that the first oil guiding member 5 is not in direct contact with the balls.

Further, in the present embodiment, since the first output portion 53 and the return hole 41 have a difference in distance in the axial direction, the oil guide groove 42 is horizontally provided on the return 4 in parallel to the axial direction of the screw.

Specifically, in connection with fig. 7-8, in another embodiment, the return device 4 is provided with an oil guiding groove 42, the oil guiding groove 42 and the end cover 2 are combined to form an oil guiding channel, the first oil guiding member 5 further has an extension 54 connected with the first output portion 53, the extension 54 cooperates with the oil guiding channel, and a free end of the extension 54 protrudes into the backflow hole 41.

Specifically, as shown in fig. 11-12, the second oil guiding member 6 is installed in the oil storage cavity 21, a second output portion 61 of the second oil guiding member 6 extends out of the end cover 2 through a first notch 25 on the end cover 2, and is used for guiding the lubricating oil in the oil storage cavity 21 to contact with the screw rod, a transition groove 24 is disposed between the first notch 25 and the oil storage cavity 21, a part of the second output portion 61 is located in the transition groove 24, and the lubricating oil overflowed from the middle portion of the second output portion 61 is in a space formed by combining the oil guiding groove 42 and the first cover plate 3, so as to avoid oil leakage.

Specifically, in connection with fig. 14-15, in a further embodiment, a third oil guide 9 is installed at the second end of the end cover 2, a plurality of third output parts 91 of the third oil guide 9 extend out of the end cover 2 through second notches 28b on the end cover 2, and are used for guiding the lubricating oil in the oil storage cavity 21 to contact with a screw rod, a second mounting groove 28 adapted to the third oil guide 9 is formed at the second end of the end cover 2, and the second cover plate 8 is connected with the end cover 2 into a whole in an ultrasonic welding manner. The second mounting groove 28 is communicated with the oil storage cavity 21 through a through hole 28a at the bottom of the groove; the lubricating oil in the oil reservoir chamber 21 infiltrates the third oil guide 9 through the through hole 28 a.

Further, as shown in fig. 16-17, in another embodiment, the inner wall of the oil storage chamber 21 is chamfered, and the lower edge of the corresponding first cover plate 3 is chamfered to fit with it. The chamfer is arranged to enlarge the distance between the inner wall of the place and the inner wall of the central position in the oil storage cavity 21, so that the end cover 2 can be conveniently demoulded in the injection molding production process.

In another embodiment a sliding table is disclosed comprising the lubrication retaining device described in this embodiment as well as a slide 1, a slide rail and a screw.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A lubrication retainer, characterized by: the oil storage device comprises an end cover, a return device and a first oil guide piece, wherein the end cover is arranged at the end part of a sliding block of a linear sliding rail, an oil storage cavity is formed in the end cover, one part of the first oil guide piece is arranged between the end cover and the sliding block, the other part of the first oil guide piece is positioned in the oil storage cavity, and the first oil guide piece is communicated with a return hole on the return device and is used for guiding lubricating oil in the oil storage cavity to the return hole.

2. A lubrication retainer according to claim 1, wherein: the end cover is provided with a first end far away from the sliding block and a second end close to the sliding block, the oil storage cavity is arranged at the first end of the end cover, a first mounting groove is formed at the second end of the end cover, and the communication hole in the end cover is used for communicating the oil storage cavity with the first mounting groove.

3. A lubrication retainer according to claim 2, wherein: the first oil guide piece comprises an oil suction part positioned in the oil storage cavity, a first output part positioned in the first mounting groove and a communication part matched with the communication hole.

4. A lubrication retainer according to claim 3, wherein: the oil guide groove is formed in the return device and is combined with the end cover to form an oil guide channel, and lubricating oil precipitated at the first output part flows to the backflow hole through the oil guide channel.

5. A lubrication retainer according to claim 3, wherein: the oil guide groove is formed in the return device and is combined with the end cover to form an oil guide channel, the first oil guide piece is further provided with an extension part connected with the first output part, the extension part is matched with the oil guide channel, and the free end of the extension part stretches into the backflow hole.

6. A lubrication retainer according to claim 1, wherein: the second oil guide piece is arranged in the oil storage cavity, and a plurality of second output parts of the second oil guide piece extend out of the end cover through a first notch on the end cover and are used for guiding lubricating oil in the oil storage cavity to be in contact with the screw rod.

7. A lubrication retainer according to claim 6, wherein: a transition groove is arranged between the first notch and the oil storage cavity, and part of the second output part is positioned in the transition groove.

8. A lubrication retainer according to claim 2, wherein: the second end of the end cover is provided with a third oil guide piece, and a plurality of third output parts of the third oil guide piece extend out of the end cover through a second notch on the end cover and are used for guiding lubricating oil in the oil storage cavity to be in contact with the screw rod.

9. A lubrication retainer according to claim 8, wherein: the second end of the end cover is provided with a second mounting groove matched with the third oil guide piece, and the second mounting groove is communicated with the oil storage cavity through a through hole at the bottom of the groove.

10. A slipway, its characterized in that: comprising a lubrication retainer according to any one of claims 1-9.