JP2010180891A - Sliding mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding mechanism capable of suppressing generation of heat during sliding and stably sliding over a long period of time by suppressing mechanical contact between a sliding support part and a sliding part to the minimum and stably and continuously supplying a lubricant. <P>SOLUTION: This sliding mechanism 1 includes: a longitudinal sliding support part 4 formed having a substantially S-shaped cross section; the sliding part 5 slidably attached to each sliding support face 6a of the sliding support part 4 in a state of maintaining a void therebetween; a lubricant flow passage part 9 in which a flow passage 8 through which the lubricant 7 flows is opened inside the sliding part 5; a lubricant jetting part for making the lubricant 7 flow in the flow passage 8 using air pressure and radially jetting the lubricant 7 from an opening part 11 opened in a sliding face 10a of the sliding part 5 opposing the sliding support face 6a, and communicated with the flow passage 8; and a lubricant layer 2 formed by the lubricant 7 jetted from the opening part 11 filling the void. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sliding mechanism, particularly employed as a part of a machine tool, having a sliding portion that can slide in a predetermined sliding range and sliding direction, and is generated during sliding. The present invention relates to a sliding mechanism that can suppress the heat to be generated and can move stably without causing sliding blur due to thermal deformation.

  Conventionally, in various machine tools or other machine elements, the sliding portion is slid in a state with a small friction coefficient along a sliding support portion such as a rail that defines a certain sliding range and sliding direction. Many sliding mechanisms (sliding mechanisms, rail mechanisms, etc.) are used. For example, a sliding part having a wheel or the like that substantially matches the shape of the upper surface of the rail is installed on a linear rail, and the wheel is rotated by a drive mechanism such as a motor attached to the sliding part. What realizes a smooth movement is known. Also, in the case of a machine tool such as a polishing machine, a slide for sliding a sliding part connected to an arm extending from a polishing part that comes into contact with a workpiece to be processed along a sliding support part at high speed The mechanism is adopted. Furthermore, in a polishing machine (machine tool) that mainly performs a polishing operation, the spindle taper is re-polished by bringing it into contact with the tip of the spindle taper in contact with the workpiece and sliding at a high speed, and the sharpness is restored again. Etc. are also used. In these cases, in order to machine the tip of a machine tool that requires precision machining at high speed, a very precise machining accuracy (for example, several micrometers) is required.

  In the sliding mechanism as described above, generally, the larger the contact area between the wheel (sliding part, part of the sliding part) and the rail (sliding support part), the higher the coefficient of friction tends to be. It is known that the generation of frictional heat increases as the friction coefficient increases. For this reason, in some high-speed machines such as a polishing machine that slides at a high speed as described above, a configuration is adopted in which the contact area between the sliding support part and the sliding part is made as small as possible. .

  For example, there is one that employs a bearing mechanism in which a spherical metal ball is interposed between the sliding support portion and the sliding portion. As a result, when the sliding part slides along the sliding support part, the sliding support part and the sliding part respectively contact with the ball of the bearing mechanism in a very small area (point contact). Rolls along the sliding of the sliding portion, so that the friction coefficient can be made extremely small. As a result, generation of heat and the like can be suppressed.

  The above prior art has been publicly implemented, and the applicant has not particularly known a document describing such prior art at the time of filing this application.

  However, even the sliding mechanism having the bearing mechanism described above may cause the following problems. That is, even if the area is extremely small, the sliding support part and the sliding part are in mechanical contact with the metal balls, so that the heat can be completely suppressed during sliding. could not. In particular, when re-polishing the spindle taper, a work time of about 2 to 4 hours is generally required. For this reason, heat is generated in the sliding support portion that supports the polishing portion that slides at a high speed in the re-polishing step, and the temperature may become high. As a result, the sliding support portion and the sliding portion mainly formed of a metal material such as iron may be distorted or bent due to heat deformation. Therefore, the smooth movement of the sliding portion becomes difficult, and the sliding direction may be shaken or vibration due to deformation may occur. For this reason, the processing accuracy of the machine tool itself and the polishing accuracy in the re-polishing step may be reduced. As a result, there is a possibility that the quality of a workpiece processed by a machine tool or the like may vary, or the quality itself may deteriorate as a whole. Therefore, in some cases, a mechanism for suppressing the generation of heat or a mechanism for cooling the sliding support part and the sliding part that have become high temperature by air cooling or the like is required for such a sliding mechanism.

  On the other hand, in the case of a general sliding mechanism, a lubricating liquid (for example, an oily lubricant, oil, etc.) is supplied between the sliding support portion and the sliding portion for the main purpose of reducing the friction coefficient. there were. In this case, immediately after the supply of the lubricant, a sufficient amount of lubricant is held between the sliding portion and the sliding support portion, so that it was possible to fully enjoy the lubricating effect of the lubricant. . Furthermore, it has the cooling effect which suppresses generation | occurrence | production of a heat | fever primarily between a sliding support part and a sliding part with the supplied lubricant. However, when the operation is performed for a long time as in a polishing operation, the amount of the lubricant is insufficient, and the friction coefficient may increase. For this reason, it may be necessary to temporarily stop the polishing operation and supply the lubricant again, which may cause a problem in terms of work efficiency.

  Therefore, in view of the above circumstances, the present invention minimizes mechanical contact between the sliding support portion and the sliding portion, and continuously supplies the lubricant stably, so that the heat during sliding can be reduced. An object of the present invention is to provide a sliding mechanism that suppresses generation and enables stable sliding over a long period of time.

  The sliding mechanism of the present invention is “installed with a predetermined gap between the sliding support part and the sliding support part, and along the sliding direction regulated by the sliding support part. A sliding portion that is slidable, and a lubricant passage portion that is formed in one of the sliding support portion and the sliding portion and is formed by a plurality of passages through which lubricant can flow. , Connected to one end of the lubricant flow path portion, sends the lubricant into the flow path, and communicates with the other end of the lubricant flow path portion on the surface of the sliding support portion or the sliding portion Lubricant ejecting means for ejecting the lubricant from the opened opening, and a lubricant layer formed by filling the gap between the sliding support portion and the sliding portion with the ejected lubricant. '' It is comprised mainly from what comprises.

  Here, the sliding support part is a part that regulates and supports the sliding direction and sliding range of the sliding part, and can be exemplified by a longitudinal rail member or the like. The sliding support portion is made of a hard material such as a metal that is not easily deformed or damaged in order for the sliding portion to move smoothly. The sliding portion is formed to have a sliding surface that faces the sliding support surface of the sliding support portion and at least partially matches the shape. Similar to the sliding support portion, the sliding portion is also formed using a hard material. Further, a gap having a predetermined interval is provided between the sliding support surface and the sliding surface, and a liquid lubricant described later is filled in the gap to form a lubricant layer. The gap is assumed to have a very fine gap of, for example, 1.0 to 1.5 micrometers. Therefore, the sliding support surface of the sliding support portion and the sliding surface of the sliding portion need to be formed as smooth surfaces. Furthermore, the sliding direction of the sliding part supported by the sliding support part is not particularly limited. For example, a long-sliding support part is arranged in the horizontal direction, and the sliding part is reciprocated linearly in the horizontal direction. It is also possible to suspend a longitudinally-shaped sliding support portion and to reciprocate linearly the sliding portion in the vertical direction. Further, one end and the other end of the sliding support portion may be formed in an annular shape connected to each other so as to go around the sliding portion.

  On the other hand, the lubricant flow path portion is drilled inside either the sliding support portion or the sliding portion, and the lubricant sent out using the lubricant jetting means described below, In order to eject into the gap between the sliding support part and the sliding part, it is composed of a tubular channel provided inside the sliding support part. In general, the flow path is formed in a circular cross section, branches in one direction from one end connected to the lubricant jetting means, and communicates with the sliding support surface or the opening provided on the sliding surface at the other end side. ing. Thereby, the lubricant introduced from one end of the lubricant flow channel part can flow through the flow path and reach the opening part while branching into several parts.

  Furthermore, the lubricant ejection means refers to, for example, an oil-based lubricant (so-called “lubricating oil”) stored in a storage tank using a predetermined air pressure (for example, about 0.5 MPa) using an air compressor or the like. Then, the lubricant is introduced into the lubricant channel portion, and the lubricant can be circulated in the channel by air. At this time, the lubricant mainly circulates in the form of a mist (mist) in the flow path by the air pressure. Further, it is not always necessary to supply the lubricant to the lubricant flow path by the lubricant ejection means. For example, a small amount of lubricant may be ejected about once every 30 seconds. . Here, since the gap between the sliding support portion and the sliding portion is a very small gap of about 1.0 μm as described above, a sufficient amount of lubricant layer can be formed even with a small amount of lubricant. It becomes possible to form. In particular, when a lubricant is supplied to such a minute gap, the lubricant having a viscosity permeates quickly into each of the sliding support surface and the sliding surface due to capillary reduction, so that all the surfaces are covered. Will spread. The type and properties of the lubricant are not particularly limited, but mineral oil lubricants generally used as lubricants for machine tools and inorganic polymer lubricants such as silicone oils are used in each environment. It may be different depending on the working conditions.

  Therefore, according to the sliding mechanism of the present invention, the lubricant passes through the lubricant channel portion formed in either the sliding support portion or the sliding portion, and the lubricant is moved between the sliding support portion and the sliding portion. A lubricant layer having a predetermined layer thickness is formed by the lubricant. As a result, the sliding portion that slides along the sliding support portion can move smoothly due to the lubricating action of the lubricant. In particular, the coefficient of friction can be reduced by a lubricant layer made of a liquid lubricant with minimal mechanical contact, such as a conventional bearing mechanism. Furthermore, since the lubricant is continuously supplied at predetermined intervals by the lubricant jetting means, it is possible to prevent an increase in the coefficient of friction due to a lack of lubricant even during long-time operation. As a result, generation of heat due to friction is suppressed, thermal deformation due to expansion and expansion / contraction of the sliding support portion and the like can be prevented, and stable sliding without shaking can be performed for a long time. Thereby, the precision of a machine tool etc. can be stabilized.

  Further, the sliding mechanism according to the present invention includes, in addition to the above-described configuration, “provided that the lubricant is provided in the opening and is formed so as to be larger than the flow path diameter of the flow path of the lubricant flow path. You may comprise the said sliding support part or the ejection expansion part which ejects to the wide range of the surface of the said sliding part.

  Therefore, according to the sliding mechanism of this invention, it has an ejection expansion part in the opening part formed in a sliding support surface or a sliding surface. Here, the lubricant sprayed by the lubricant spraying means generally tries to spray while spreading radially. However, such radial expansion is restricted within the narrow flow path of the sliding portion. In view of this, a jet expansion portion having a diameter larger than the flow path diameter of the flow path is provided in the opening, and the lubricant can be sprayed in a wide range with respect to the surface. Further, the ejection extension portion may have a function as a storage unit that temporarily stores the lubricant in the vicinity of the opening. That is, as described above, the lubricant that is generally intermittently ejected is completely ejected into the gap by one ejection, and immediately after the next ejection is started, only air is ejected toward the gap and lubrication is performed. There is a possibility that the agent layer is not sufficiently formed. Therefore, by providing a portion with an enlarged diameter in the opening, it is possible to eject the oil over a wide range, temporarily hold the lubricant in the space, and simultaneously eject the lubricant toward the gap. Making it possible. Here, the lubricant is generally an oily liquid and is often a viscous substance. Therefore, the lubricant that has reached the ejection extension portion can remain in the ejection extension portion due to surface tension. In addition, the shape of the ejection extension portion is not particularly limited, but for example, a circular (cylindrical) space formed larger than the flow path diameter of the flow path or a radial opening from the flow path The thing comprised by the space of substantially cone shape can be mentioned.

  Furthermore, in addition to the above configuration, the sliding mechanism according to the present invention may be “the jet expansion portion is formed in a hemispherical space”.

  Therefore, according to the sliding mechanism of the present invention, the ejection extension portion that ejects the lubricant in a wide range and temporarily stores the lubricant is formed in a hemispherical shape. As a result, the lubricant that has reached the ejection expansion portion through the lubricant flow channel is ejected from the opening while expanding radially along the hemispherical spherical wall. Furthermore, since the spherical shape is suitable for the case where the oily liquid has a minimum surface area, the lubricant is easily stored along the shape of the space, and the next lubricant is ejected stably and reliably. It becomes possible.

  Furthermore, the sliding mechanism according to the present invention includes, in addition to the above configuration, “a layer in which the gap between the sliding support portion and the sliding portion is changed and the thickness of the formed lubricant layer can be adjusted. It may be equipped with a “thickness adjusting means”.

  Therefore, according to the sliding mechanism of the present invention, the layer thickness adjusting means capable of adjusting the layer thickness of the lubricant layer is provided. That is, the thickness of the lubricant layer formed between the sliding part and the sliding support part greatly depends on the increase / decrease of the friction coefficient. Therefore, the layer thickness adjusting means can finely adjust the gap between the sliding support portion and the sliding portion, and the thickness of the lubricant layer formed by filling the lubricant can be changed. Here, as an example of the layer thickness adjusting means, each of the bolts that are constituted by one push bolt installed in the sliding portion and two pull bolts arranged around the push bolt and screwed into the screw holes are mutually connected. Adjustment can be made by utilizing the opposing screw driving force. The sliding part can be installed so as to surround a part of the sliding support surface of the sliding support part. In such a case, the sliding part is composed of two or more parts that can be divided. And it can construct | assemble by assembling each component in the case of installation to a sliding support part. And you may enable it to adjust the space | gap with respect to a sliding support part in the case of the said assembly | attachment.

  As an effect of the present invention, a lubricant layer is formed between the sliding support portion and the sliding portion, and the generation of heat is suppressed by reducing the friction coefficient, and the sliding of the sliding portion is stable without deformation. It becomes possible to make it slide.

It is a front view which shows the structure of the sliding mechanism of this embodiment. It is a top view which shows the structure of a sliding mechanism. It is sectional drawing which shows the structure of a sliding mechanism. It is an expanded sectional view mainly showing the composition of a lubricant layer and a jet expansion part.

  Hereinafter, the sliding mechanism 1 which is one Embodiment of this invention is demonstrated based on FIG. 1 thru | or FIG. Here, FIG. 1 is a front view showing the configuration of the sliding mechanism 1 of the present embodiment, FIG. 2 is a plan view showing the configuration of the sliding mechanism 1, and FIG. 3 shows the configuration of the sliding mechanism 1. FIG. 4 is an enlarged cross-sectional view mainly showing the configurations of the lubricant layer 2 and the ejection extension portion 3. Here, in the sliding mechanism 1 of the present embodiment, a longitudinal sliding support portion 4 is suspended from an installation surface (not shown), and the sliding portion 5 is moved up and down along the sliding support portion 4. An example of sliding in the direction will be described. The sliding portion 5 is provided with a polishing portion (not shown). As a partial configuration of a polishing machine capable of performing the polishing operation of the spindle taper by sliding at a high speed in the vertical direction. The description will be made assuming that the sliding mechanism 1 of the present embodiment is employed.

  The sliding mechanism 1 of the present embodiment has a longitudinal sliding support portion 4 formed in a substantially S-shaped cross section (or a substantially Z-shaped cross section) having protrusions 4a and 4b protruding in directions away from each other. And a sliding member having a substantially U-shaped cross section, which is slidably mounted so as to be slidable relative to each of the sliding support surfaces 6 a, 6 b, 6 c, 6 d of the sliding support part 4. The moving part 5, a circular flow path 8 through which the oily lubricant 7 circulates are connected to the lubricant flow path part 9 formed in the sliding part 5 and one end of the lubricant flow path part 9. The lubricant 7 is circulated through the flow path 8 by using air pressure, and the sliding surfaces 10a, 10b, 10c, and 10d of the sliding portion 5 facing the sliding support surface 6a and the like communicate with the flow path 8 and are opened. The lubricant jetting part 12 for jetting the lubricant 7 radially from the opened part 11 and the lubricant 7 jetted from the opening part 11 include the sliding support surface 6a, etc. A lubricant layer 2 and which is formed satisfies the gap between such fine sliding surface 10a is configured mainly provided.

  Here, the opening 11 is provided with a jet expansion portion 3 formed of a hemispherical space that is expanded with respect to the tube diameter of the circular flow channel 8 of the lubricant flow channel portion 9. Thereby, the lubricant 7 delivered through the flow path 8 is ejected radially, and in a state waiting for ejection, is temporarily stored in a hemispherical space, and then ejected by air pressure. Is retained. The lubricant 7 is oily and has viscosity. Therefore, the lubricant 7 in the space of the ejection extension portion 3 is held by the surface tension. In the case of the present embodiment, at least one or more of the ejection extension portions 3 are provided on the sliding surface 10a or the like. The sliding support surface 6a and the like and the sliding surface 10a and the like correspond to the sliding support portion or the surface of the sliding portion of the present invention.

  Further, the flow path 8 of the lubricant flow path section 9 formed inside the sliding section 5 extends from one end connected to the lubricant ejection section 12 to the ejection expansion section 3 of the opening section 11 such as each sliding surface 6a. It is necessary to bend inside to derive Therefore, the flow path 8 which penetrates the sliding part 5 is formed, and the stopper plug 19 is fitted in the bent portion, so that the flow path is complicatedly bent inside the sliding part 5 and branched in multiple directions. The lubricant flow path portion 9 having 8 is formed.

  The sliding part 5 is formed of two components as shown in FIG. That is, the sliding part body 13 is connected to the lubricant jet part 12 and has a substantially L-shaped cross section having sliding surfaces 10a and 10b, and the sliding surfaces 10c and 10d. And a sliding part separate body 14 having an abutting surface 14a that abuts. That is, at the time of attachment to the sliding support portion 4, the two separated members (the sliding portion main body 13 and the sliding portion separate body 14) are fixed by the fixing member so as to be connected. At this time, the four sliding directions 10a, 10b, 10c, and 10d are opposed to the sliding support surfaces 6a, 6b, 6c, and 6d of the sliding support portion 4 having the pair of protrusions 4a and 4b, respectively. The sliding portion 5 is attached so as to surround the sliding support portion 4. As a result, the sliding portion 5 does not come off the sliding support portion 4 during sliding. On the other hand, when the sliding part 5 is removed from the sliding support part 4, the fixing by the fixing member is released and the sliding part main body 13 and the separate sliding part 14 are separated.

  Here, the flow path 8 through which the lubricant 7 flows is formed in each of the sliding part main body 13 and the sliding part separate body 14 as described above. Therefore, when the separated sliding part main body 13 and the separate sliding part body 14 are fixed so as to be integrated, the positions of the opening ends (not shown) of the flow paths 8 are designed to coincide with each other. . Further, a rubber O-ring 15 is installed at the connection portion so that the lubricant 7 does not leak from the connected flow path 8.

  As another configuration, a plurality of bolt hole groups 16 provided so as to penetrate a part of the sliding portion 5 are formed in the sliding mechanism 1 of the present embodiment. More specifically, the bolt hole group 16 has three bolt holes 16a each having a large bolt hole 16a having a large hole diameter provided at the center and a pair of small bolt holes 16b having a small hole diameter provided on both sides thereof. Etc. are formed as one set. Here, the pulling bolt 17 is screwed into the large bolt hole 16 a, and the force for pulling the sliding portion 5 in the bolt head direction of the pulling bolt 17 acts by the screwing propulsion force by the large bolt hole 16 a and the pulling bolt 17. is doing. On the other hand, a push bolt 18 is screwed into the two small bolt holes 16b on both sides, and the force that pushes the sliding portion 5 in the direction opposite to the pull bolt 17 (the direction away from the bolt head) is small bolt hole 16b. Further, it acts by screwing propulsion force by the push bolt 18. Thereby, the space | gap formed between the sliding part 5 and the sliding support part 4 is set in arbitrary ranges by adjusting the rotation with respect to each bolt hole 16a, 16b of the pulling bolt 17 and the pushing bolt 18. FIG. Can do. It should be noted that the bolt hole group 16 including the three bolt holes 16 a and the like provided in the sliding portion 5 needs to be provided at least at two places in the front and rear in the sliding direction of the sliding portion 5. Here, the bolt hole group 16, the pull bolt 17, and the push bolt 18 correspond to the layer thickness adjusting means of the present invention.

  In order to transmit the driving force generated by the driving means such as a motor that generates the driving force for sliding the sliding portion 5 to the sliding portion 5 and to make the reciprocating linear motion within a predetermined range. Since the configuration of a drive transmission mechanism and the like for turning back the sliding direction at the sliding end is well known in the conventional sliding mechanism (sliding mechanism), description and illustration are omitted here. Furthermore, the main structure of the sliding support part 4 and the sliding part 5 is formed from metal materials, such as iron with little deformation | transformation by a heat | fever.

  Next, an example of use by a polishing machine that employs the sliding mechanism 1 of the present embodiment and performs a re-polishing operation of the tip of the spindle taper will be described. In this example, the sliding part 5 is slid at a high speed in the vertical direction along the elongated sliding support part 4 provided vertically, and the polishing is installed on the sliding part 5 directly or via an arm or the like. This shows a work performed by a polishing unit (not shown). In addition, the sliding part 5 is previously installed in the sliding support part 4, and the space | gap which can form the suitable lubricant layer 2 is formed between both by the pulling volt | bolt 17 and the push bolt 18 grade | etc.,. Adjustments have been made.

  First, the polishing machine for performing the polishing operation is operated. Thereby, the driving force generated by the driving means is transmitted to the sliding portion 5, and the sliding portion 5 slides at high speed along the sliding support portion 4. Simultaneously with the sliding of the sliding portion 5, air is sent out by the lubricant jetting portion 12, and the lubricant 7 is supplied from one end of the lubricant flow path portion 9 of the sliding portion 5 stored in a storage tank (not shown). Is done. The supplied lubricant 7 circulates in the flow path 8 in a state of being atomized by air pressure (for example, 0.5 MPa), and reaches the opening portion 11 opened to the sliding surface 10a and the like. And from this opening part 11, it becomes radial and is ejected with respect to a space | gap by the hemispherical ejection expansion part 3. FIG. By supplying the oily lubricant 7 to the gap formed by very fine gaps of several micrometers, the lubricant layer 2 made of the lubricant 7 is formed in the gap. Here, the flow path 8 is branched into a plurality of portions inside the sliding portion 5, and the lubricant 7 is delivered from the openings 11 opened on the respective surfaces 10 a, 10 b, 10 c, and 10 d of the sliding portion 5. Yes. Thereby, the above-mentioned lubricant layer 2 is formed in all the gaps between the sliding support portion 4 and the sliding portion 5. In particular, the jet expansion portion 3 having a diameter expanded with respect to the flow path 8 can be jetted to a wide range of the sliding support surface 6a or the like facing the sliding surface 10a or the like.

  By sliding the sliding part 5 along the sliding support part 4 in such a state, the effect of reducing the friction coefficient by the lubricant 7 can be enjoyed, and smooth sliding with little heat generation is performed. be able to. Here, the ejection of the lubricant 7 by the lubricant ejection section 12 is not always performed continuously, and may be performed intermittently, for example, about once every 30 seconds. That is, the lubricant layer 2 formed in the gap is consumed by the sliding portion 5 that slides at high speed, and the friction coefficient may increase. Therefore, by intermittently ejecting the lubricant 7 in a short time, the lubricant layer 2 is always formed, and an increase in the friction coefficient can be prevented.

  Furthermore, the hemispherical jet expansion part 3 provided in the opening part 11 can temporarily store a part of the lubricant 7 that has not been jetted from the opening part 11 into the gap during the previous jetting. As a result, since the lubricant 7 is always stored in the vicinity of the gap, the lubricant 7 can be quickly supplied to the gap at the next ejection. Thereby, even if it is sliding for a long time (for example, about 4 hours), generation | occurrence | production of a heat | fever can be suppressed and the thermal deformation | transformation of the sliding support part 4 grade | etc., Can be prevented, and smoothness does not occur without sliding blur The sliding part 5 can be slid with a simple movement. In particular, since the lubricant 7 is always supplied intermittently, it is not necessary to stop the operation of the polishing machine itself and perform the lubrication work, and there is no possibility of causing a reduction in work efficiency.

  The present invention has been described with reference to preferred embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention as described below. And design changes are possible.

  That is, in the sliding mechanism 1 of the present embodiment, the polishing machine for polishing the spindle taper has been described as an example. However, the present invention is not limited to this, and sliding of other various machine tools and machine elements is not limited thereto. Can be employed in the mechanism. Furthermore, although the thing which regulates a sliding direction to an up-down direction was shown, it does not limit a sliding direction. In addition, although the hemispherical shape is illustrated as the shape of the ejection extension portion 3, the shape is not limited to this, and any shape capable of ejecting to a wide range and storing the lubricant 7 may be used. Furthermore, when the range in which the lubricant layer 2 is formed is narrow, the configuration of the ejection extension portion 3 may be omitted, and the opening portion with the channel diameter of the channel 8 may be used. Furthermore, although what provided the lubricant flow path part 9 in the inside of the sliding part 5 was shown, you may provide a lubricant flow path part in the inside of the sliding support part 4. FIG.

DESCRIPTION OF SYMBOLS 1 Sliding mechanism 2 Lubricant layer 3 Ejection expansion part 4 Sliding support part 4a, 4b Protrusion part 5 Sliding part 6a, 6b, 6c, 6d Sliding support surface (surface of a sliding support part)
7 Lubricant 8 Channel 9 Lubricant channel 10a, 10b, 10c, 10d Sliding surface (Sliding surface)
11 Opening part 12 Lubricant ejection part (lubricant ejection means)
16 Bolt hole group (layer thickness adjusting means)
16a Large bolt hole (layer thickness adjusting means)
16b Small bolt hole (layer thickness adjusting means)
17 Pull bolt (layer thickness adjusting means)
18 Press bolt (layer thickness adjusting means)

Claims (4)

A sliding support;
A sliding part installed with a predetermined gap between the sliding support part and slidable along a sliding direction regulated by the sliding support part;
A lubricant channel portion formed by a plurality of channels that are pierced in any one of the sliding support portion and the sliding portion and through which lubricant can flow; and
Connected to one end of the lubricant channel part, sends the lubricant into the channel, and communicated with the other end of the lubricant channel part on the surface of the sliding support part or the sliding part. Lubricant ejection means for ejecting the lubricant from the opened opening,
A sliding mechanism comprising: a lubricant layer formed by filling a gap between the sliding support portion and the sliding portion with the jetted lubricant.   The lubricant is provided in the opening and formed to have a diameter larger than the flow path diameter of the flow path of the lubricant flow path section, and the lubricant is spread over a wide range on the surface of the slide support section or the slide section. The sliding mechanism according to claim 1, further comprising a jet expansion portion for jetting. The spout extension is
The sliding mechanism according to claim 2, wherein the sliding mechanism is formed in a hemispherical space.   It further comprises layer thickness adjusting means capable of adjusting the thickness of the lubricant layer formed by changing the gap formed between the sliding support portion and the sliding portion and filling the lubricant. The sliding mechanism according to any one of claims 1 to 3, wherein:

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