CN103671510A - Sliding guide rail capable of generating distributed hot wedge hydrodynamic lubrication - Google Patents
Sliding guide rail capable of generating distributed hot wedge hydrodynamic lubrication Download PDFInfo
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- CN103671510A CN103671510A CN201310664011.5A CN201310664011A CN103671510A CN 103671510 A CN103671510 A CN 103671510A CN 201310664011 A CN201310664011 A CN 201310664011A CN 103671510 A CN103671510 A CN 103671510A
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- guide rail
- hydrodynamic lubrication
- quiet
- guide rails
- wedge shape
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Abstract
The invention discloses a sliding guide rail capable of generating distributed hot wedge hydrodynamic lubrication. The sliding guide rail comprise a movable guide rail and a static guide rail, wherein a plurality of circular holes, which are in uniform distribution and are same in size, are formed in a static guide rail base matched with the movable guide rail, and cylinders which are same in size are arranged in the circular hole; wear-resistant soft material layers are covered on the surface of the static guide rail base matched with the movable guide rail and the surface of each cylinder; the movable guide rail and the static guide rail are rectangular guide rails, V-shaped guide rails or dovetail groove guide rails. An elastic fluid hydrodynamic lubrication oil film is formed between the movable guide rail and the static guide rail, the frictional abrasion is reduced, and the service life of the guide rail is prolonged; the guide rails are capable of forming a distributed wedge convergent clearance, the integrated hydrodynamic lubrication effect is improved and the wear resistance is increased; the distributed wedge convergent clearance formed between the two guide rails can be subjected to two-way lubrication, so that hydrodynamic lubrication can be realized during reciprocating motion of the guide rails. The sliding guide rail disclosed by the invention can be used in the occasions, in which high bearing capacity and lubrication effect are needed, such as heavy weighted guide rails or guide rails which are difficult to lubricate.
Description
Technical field
The present invention relates to a kind of slide guide, especially relate to a kind of slide guide that can produce distributed heat wedge shape hydrodynamic lubrication.
Background technique
The slideway of common slide guide directly contacts, and has the mixed friction state of certain dynamic pressure effect, and dynamic pressure effect is limited.But although this guide rail simple structure, easily manufactured, contact stiffness is high, the good surface friction drag of shock resistance is large, quick abrasion.Hydrodynamic lubrication can reduce the friction between guide rail well, improves the guide rail life-span.
Form hydrodynamic lubrication and must possess three conditions: the lubricant oil of the oil sac shrinking gradually along moving direction stop surface, certain speed of related movement and certain viscosity.The hydrodynamic lubrication equation of fluid, as the formula (1).By increasing the wedge shape convergence gap between quiet guide rail and moving guide rail, can improve the operating conditions of guide rail, improve wear resistance and the lubrication effect of guide rail.
In formula (1), the coordinate of x-speed U direction; Y-speed V direction coordinate; ; H-oil slick thickness; P-oil film pressure; ρ-lubricant oil density; η-lubricant oil kinetic viscosity; w
h-w
0for normal direction extrusion speed; φ
xwith φ
ybe respectively the pressure flow factor of x direction and y direction; φ
uxshear flow factor for x direction; φ
uyshear flow factor for y direction.
Summary of the invention
In order to solve, surface friction drag in background technique is large, the problem of quick abrasion, the object of the present invention is to provide a kind of slide guide that can produce distributed heat wedge shape hydrodynamic lubrication, on quiet guide rail, be processed with equally distributed circular hole, the cylindrical body that thermal expansion coefficient and heat conductivity are larger is housed in hole, on the quiet guide rail matrix surface matching with moving guide rail and periphery, is coated with the slide guide of the wear-resisting soft material of one deck.
The technical solution used in the present invention is:
The present invention includes moving guide rail and quiet guide rail; On the quiet guide rail matrix matching with moving guide rail, have equally distributed and measure-alike circular hole, measure-alike cylindrical body is all housed in each circular hole, on the quiet guide rail matrix surface matching with moving guide rail and periphery, is all coated with the soft material that one deck is wear-resisting.
Described measure-alike circular hole is parallel along many, quiet rail length direction, equidistantly arranges.
Described moving guide rail and quiet guide rail are rectangular guideway, V-type rail or dovetail groove guide rail.
The material of described quiet guide rail matrix is cast iron or carbon steel, and described soft material is Babbitt solid lubricant or teflon solid lubricant.
Described cylindrical body adopts the brass with larger thermal expansion coefficient and heat conductivity, is HFe59-1-1, HSn62-1 or HSn60-1; Cylinder diameter is 5～20mm, is highly 10～20mm.
The beneficial effect that the present invention has is:
1, the cylindrical body expanded by heating in slide guide working procedure in quiet guide rail matrix circular hole, the soft material of extruding matrix surface, make its surface produce projection, form wedge shape convergence gap with moving guide rail surface, thereby make to form elastic hydrodynamic lubrication oil film between moving guide rail and quiet guide rail, reduce fretting wear, improve guide rail working life.
2, because soft material is easily out of shape, the dynamic pressure oil film of moving guide rail between quiet guide rail will be in elastic hydrodynamic lubrication state, and lubrication effect is obvious, and guide rail wear resistance is good.
3, guide rail can form distributed wedge shape convergence gap, and whole hydrodynamic lubrication effect improves, and wear resistance improves.
4, the wedge shape convergence gap energy Bidirectional lubricating forming between two guide rails, can realize hydrodynamic lubrication while making guide rail to-and-fro motion.
The present invention can be used for slide guide bearing capacity and the higher occasion of lubrication effect.For example, heavy duty guide rail or be difficult for lubricated guide rail.
Accompanying drawing explanation
Fig. 1 is the overall schematic of distributed heat wedge shape hydrodynamic lubrication guide rail.
Fig. 2 is a kind of rectangular guideway structural drawing with distributed heat wedge shape hydrodynamic lubrication.
Fig. 3 is a kind of V-type rail structural drawing with distributed heat wedge shape hydrodynamic lubrication.
Fig. 4 is a kind of dovetail groove guide rail structure figure with distributed heat wedge shape hydrodynamic lubrication.
In figure 1, moving guide rail, 2, quiet guide rail, 3, lubricant oil, 4, wear-resisting soft material, 5, cylindrical body.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As shown in Figure 1, while the invention enables slide guide work, quiet guide rail surface produces a lot of projections, between projection and projection, forms a plurality of convergences gap between protruding and moving guide rail surface.
As shown in Figure 2, be a kind of rectangular guideway structural drawing with distributed heat wedge shape hydrodynamic lubrication.The present invention includes moving guide rail 1 and quiet guide rail 2; On quiet guide rail 2 matrixes that match with moving guide rail 1, have equally distributed and measure-alike circular hole, the cylindrical body 5 that measure-alike thermal expansion coefficient and heat conductivity are larger is all housed in each circular hole, on the quiet guide rail matrix surface matching with moving guide rail and periphery, be all coated with the soft material 4 that one deck is wear-resisting, between moving guide rail 1 and quiet guide rail 2, be filled with lubricant oil 3.
Described measure-alike circular hole is parallel along many, quiet rail length direction, equidistantly arranges.
Described moving guide rail and quiet guide rail are rectangular guideway, V-type rail or dovetail groove guide rail.
The material of described quiet guide rail matrix is cast iron or carbon steel etc., and described soft material is Babbitt solid lubricant or teflon solid lubricant.The material of moving guide rail is carbon alloy, carbon steel etc.
Described cylindrical body adopts the brass with larger thermal expansion coefficient and heat conductivity, and as HFe59-1-1, HSn62-1 or HSn60-1 etc., cylinder diameter is 5～20mm, is highly 10～20mm.
As shown in Figure 2, the present invention is applied on the quiet guide rail of spill of rectangle slide guide, and corresponding is the moving guide rail of convex of rectangle slide guide.
As shown in Figure 3, the present invention is applied on the quiet guide rail of spill of triangle slide guide, and corresponding is the moving guide rail of convex of triangle slide guide.
As shown in Figure 4, the present invention is applied on the quiet guide rail of spill of swallow-tail form slide guide, and corresponding is the moving guide rail of convex of swallow-tail form slide guide.
Working principle of the present invention is:
The heats such as frictional heat that produce during slide guide work are delivered to the cylindrical body 5 in quiet guide rail 2 matrix circular holes, make its expanded by heating, because cylindrical body 5 has larger thermal expansion coefficient and heat conductivity, and there is good intensity, its axial expansion pushes wear-resisting soft material 4, make wear-resisting soft material surface produce projection, protruding and moving guide rail surface forms wedge shape convergence gap, between gap, be full of lubricant oil 3, again due to the relative movement between moving guide rail and quiet guide rail, thereby formed hydrodynamic lubrication, reduced the friction between guide rail, improved guide rail working life.
Above-mentioned embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change that the present invention is made, all fall into protection scope of the present invention.
Claims (5)
1. can produce a slide guide for distributed heat wedge shape hydrodynamic lubrication, it is characterized in that: comprise moving guide rail and quiet guide rail; On the quiet guide rail matrix matching with moving guide rail, have equally distributed and measure-alike circular hole, measure-alike cylindrical body is all housed in each circular hole, on the quiet guide rail matrix surface matching with moving guide rail and periphery, is all coated with the soft material that one deck is wear-resisting.
2. a kind of slide guide that can produce distributed heat wedge shape hydrodynamic lubrication according to claim 1, is characterized in that: described measure-alike circular hole is parallel along many, quiet rail length direction, equidistantly arranges.
3. a kind of slide guide that can produce distributed heat wedge shape hydrodynamic lubrication according to claim 1, is characterized in that: described moving guide rail and quiet guide rail are rectangular guideway, V-type rail or dovetail groove guide rail.
4. a kind of slide guide that can produce distributed heat wedge shape hydrodynamic lubrication according to claim 1, it is characterized in that: the material of described quiet guide rail matrix is cast iron or carbon steel, described soft material is Babbitt solid lubricant or teflon solid lubricant.
5. a kind of slide guide that can produce distributed heat wedge shape hydrodynamic lubrication according to claim 1, is characterized in that: described cylindrical body adopts the brass with larger thermal expansion coefficient and heat conductivity, is HFe59-1-1, HSn62-1 or HSn60-1; Cylinder diameter is 5 ~ 20mm, is highly 10 ~ 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664011.5A CN103671510B (en) | 2013-12-09 | 2013-12-09 | The slide guide of distributed heat wedge shape hydrodynamic lubrication can be produced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664011.5A CN103671510B (en) | 2013-12-09 | 2013-12-09 | The slide guide of distributed heat wedge shape hydrodynamic lubrication can be produced |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671510A true CN103671510A (en) | 2014-03-26 |
| CN103671510B CN103671510B (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310664011.5A Expired - Fee Related CN103671510B (en) | 2013-12-09 | 2013-12-09 | The slide guide of distributed heat wedge shape hydrodynamic lubrication can be produced |
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| Country | Link |
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| CN (1) | CN103671510B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274246A (en) * | 2017-12-22 | 2018-07-13 | 南通大学 | Alternate micro- texture guide rail of a kind of bumps and preparation method thereof |
| CN111512056A (en) * | 2017-12-28 | 2020-08-07 | 日产自动车株式会社 | Low-friction sliding mechanism |
Citations (7)
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|---|---|---|---|---|
| CN2520233Y (en) * | 2002-01-25 | 2002-11-13 | 上海理工大学 | Linear rolling damp vibration absorbing guide track |
| JP2008089028A (en) * | 2006-09-29 | 2008-04-17 | Nsk Ltd | Linear guide device |
| CN102022434A (en) * | 2010-12-23 | 2011-04-20 | 浙江大学 | Sliding bearing with micro holes on inner wall thereof |
| CN102029532A (en) * | 2010-11-25 | 2011-04-27 | 天通吉成机器技术有限公司 | Composite sliding seat matched with guide rail of machine tool |
| CN102678751A (en) * | 2012-04-09 | 2012-09-19 | 浙江大学 | Sliding guide rail with micro-pit oil pockets on surface of base |
| CN103089816A (en) * | 2013-01-17 | 2013-05-08 | 浙江大学 | Distributed sliding bearing with tiny pit oil pockets at surface of bearing bush base body |
| CN203627529U (en) * | 2013-12-09 | 2014-06-04 | 浙江大学 | Sliding guide rail capable of generating distributed heat to achieve wedge-shaped dynamic-pressure lubrication |
-
2013
- 2013-12-09 CN CN201310664011.5A patent/CN103671510B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2520233Y (en) * | 2002-01-25 | 2002-11-13 | 上海理工大学 | Linear rolling damp vibration absorbing guide track |
| JP2008089028A (en) * | 2006-09-29 | 2008-04-17 | Nsk Ltd | Linear guide device |
| CN102029532A (en) * | 2010-11-25 | 2011-04-27 | 天通吉成机器技术有限公司 | Composite sliding seat matched with guide rail of machine tool |
| CN102022434A (en) * | 2010-12-23 | 2011-04-20 | 浙江大学 | Sliding bearing with micro holes on inner wall thereof |
| CN102678751A (en) * | 2012-04-09 | 2012-09-19 | 浙江大学 | Sliding guide rail with micro-pit oil pockets on surface of base |
| CN103089816A (en) * | 2013-01-17 | 2013-05-08 | 浙江大学 | Distributed sliding bearing with tiny pit oil pockets at surface of bearing bush base body |
| CN203627529U (en) * | 2013-12-09 | 2014-06-04 | 浙江大学 | Sliding guide rail capable of generating distributed heat to achieve wedge-shaped dynamic-pressure lubrication |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274246A (en) * | 2017-12-22 | 2018-07-13 | 南通大学 | Alternate micro- texture guide rail of a kind of bumps and preparation method thereof |
| CN111512056A (en) * | 2017-12-28 | 2020-08-07 | 日产自动车株式会社 | Low-friction sliding mechanism |
| CN111512056B (en) * | 2017-12-28 | 2022-03-08 | 日产自动车株式会社 | Low-friction sliding mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671510B (en) | 2015-12-30 |
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