JP2011247309A - Linear transmission member and chain thereof - Google Patents
Linear transmission member and chain thereof Download PDFInfo
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- JP2011247309A JP2011247309A JP2010119009A JP2010119009A JP2011247309A JP 2011247309 A JP2011247309 A JP 2011247309A JP 2010119009 A JP2010119009 A JP 2010119009A JP 2010119009 A JP2010119009 A JP 2010119009A JP 2011247309 A JP2011247309 A JP 2011247309A
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- rolling
- tool
- rail
- moving body
- transmission member
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 27
- 238000005096 rolling process Methods 0.000 claims abstract description 138
- 238000005192 partition Methods 0.000 claims abstract description 43
- 239000010687 lubricating oil Substances 0.000 claims description 39
- 230000004308 accommodation Effects 0.000 claims description 5
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/3825—Ball cages formed as a flexible belt, e.g. spacers connected by a thin film
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
- F16C29/0638—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
本発明は、リニア伝動部材とそのチェーンに関するものである。 The present invention relates to a linear transmission member and a chain thereof.
図1を参照する。図1に示すチェーンは、撓み性を有する連結チェーン512により仕切ブロック511を連結し、これにより、隣接する二つの前記仕切ブロック511と前記連結チェーン512とから構成される空間には、各転がり具11が転がり可能に収容される。なお、前記仕切ブロック511と前記連結チェーン512の組付作業には、工数がかなり掛かり、且つ前記転がり具11の組付作業には、工数もかなり掛かる(特許文献1を参照)。前記仕切ブロック511と前記連結チェーン512を一体成形する場合には、金型設計の観点から見れば、前記仕切ブロック511が内側へ凹むため、中子と前記仕切ブロック511が互いに干渉し、前記仕切ブロック511の離型が困難になる。転がり具を中子として樹脂を射出成形する場合には、生産効率が良くなく、そして転がり具の表面の潤滑油が除去され易いという問題があった(特許文献2を参照)。 Please refer to FIG. In the chain shown in FIG. 1, the partition blocks 511 are connected by a connecting chain 512 having flexibility, whereby each rolling tool is placed in a space formed by the two adjacent partition blocks 511 and the connection chain 512. 11 is accommodated so that it can roll. The assembly work of the partition block 511 and the connecting chain 512 takes a considerable amount of man-hours, and the assembly operation of the rolling tool 11 takes a considerable amount of man-hours (see Patent Document 1). When the partition block 511 and the connection chain 512 are integrally formed, from the viewpoint of mold design, the partition block 511 is recessed inward, so that the core and the partition block 511 interfere with each other, and the partition It becomes difficult to release the block 511. When the resin is injection-molded using the rolling tool as a core, there is a problem that the production efficiency is not good and the lubricating oil on the surface of the rolling tool is easily removed (see Patent Document 2).
次に、図2を参照する。図2に示したのは特許文献3の「リニア伝動部材とそのチェーン」である。前記リニア伝動部材に転がり具11が設けられ、前記チェーン61に仕切板611が複数設けられ、前記各仕切板611の両側がそれぞれ一つの連結チェーン612で連結され、隣接する前記仕切板611同士の間には、一つの転がり具11を収容することができる。しかし、金型設計の観点から見れば、前記仕切板611に設けられるホール613を成形するために、直径が小さくてかなり長い円柱を中子とする必要があり、射出成形した後、製品を冷却して前記円柱を緊密に覆うため、前記円柱の引出が更に困難になる。そして、前記円柱を引出しているときに、製品にバリが発生し易い。このような設計によれば、前記転がり具11と前記ホール613の内面が全面的に接触し、接触区が円形であり、接触形態が線的な接触であり、接触圧力が大きいため、油膜が接触面を容易に通過できず、潤滑油が容易に掠め取られるおそれがある。 Reference is now made to FIG. FIG. 2 shows a “linear transmission member and its chain” of Patent Document 3. The linear transmission member is provided with a rolling tool 11, the chain 61 is provided with a plurality of partition plates 611, both sides of each partition plate 611 are connected by one connection chain 612, and the adjacent partition plates 611 are connected to each other. In the meantime, one rolling tool 11 can be accommodated. However, from the viewpoint of mold design, in order to mold the hole 613 provided in the partition plate 611, it is necessary to use a long cylinder with a small diameter as a core. After injection molding, the product is cooled. Then, since the cylinder is tightly covered, it becomes more difficult to pull out the cylinder. And when the said cylinder is pulled out, a burr | flash tends to generate | occur | produce in a product. According to such a design, the rolling tool 11 and the inner surface of the hole 613 are in full contact with each other, the contact area is circular, the contact form is linear contact, and the contact pressure is large. There is a possibility that the lubricant cannot be easily passed through the contact surface and the lubricating oil can be easily praised.
リニア伝動部材において、前記転がり具11がリニアなレールに沿って転がるときには、負荷区域111は、前記転がり具11の前記レールと接触する区域とし、ほぼ環状な区域(図1及び図2の転がり具の表面の斜線部分を参照)を呈する。前記負荷区域111が前記レールと持続的に接触し、潤滑油が前記負荷区域111の両側に押出される。これにより、前記転がり具11の前記負荷区域111以外の区域に潤滑油が付着されるが、潤滑が必要である前記負荷区域111の表面に付着される潤滑油が押出されるため、潤滑効果が良くないという問題もあった。 In the linear transmission member, when the rolling tool 11 rolls along a linear rail, the load area 111 is an area in contact with the rail of the rolling tool 11 and is a substantially annular area (the rolling tool shown in FIGS. 1 and 2). (See the shaded area on the surface). The load area 111 is in continuous contact with the rail, and lubricating oil is pushed out on both sides of the load area 111. As a result, the lubricating oil adheres to areas other than the load area 111 of the rolling tool 11, but the lubricating oil adhering to the surface of the load area 111 that requires lubrication is pushed out, so that the lubricating effect is obtained. There was also a problem that it was not good.
そこで、本発明の主な目的は、上型と下型によりチェーンを一体に射出成形することができ、大量生産が可能であり、金型の機構を簡単化にすることができ、金型の作製コストを減少することができるリニア伝動部材とそのチェーンを提供することにある。 Therefore, the main object of the present invention is that the chain can be integrally injection-molded by the upper mold and the lower mold, mass production is possible, the mold mechanism can be simplified, An object of the present invention is to provide a linear transmission member and a chain thereof that can reduce the manufacturing cost.
また、本発明の次の目的は、チェーンにより転がり具の負荷区域にある潤滑油が掠め取られる問題を解決することができ、負荷区域に潤滑油を供給することができるリニア伝動部材とそのチェーンを提供することにある。 Further, the next object of the present invention is to solve the problem that the lubricating oil in the load area of the rolling tool is taken up by the chain, and the linear transmission member that can supply the lubricating oil to the load area and the chain Is to provide.
本発明のリニア伝動部材によると、外面にレール用転がり溝が設けられるレールと、前記レールに嵌め設けられ、前記レール用転がり溝に対応する移動体用転がり溝が設けられ、前記レール用転がり溝と前記移動体用転がり溝の間に負荷経路が形成されるとともに、前記負荷経路の両端が回流経路の両端とそれぞれ連接することにより、無限循環経路が形成される移動体と、前記無限循環経路内に転がり、前記移動体を前記レールに対して往復動可能にし、前記回流経路において、前記レール用転がり溝と前記移動体用転がり溝と接触せず、前記負荷経路において、前記レール用転がり溝と前記移動体用転がり溝と接触して負荷を受け可能であり、前記レール用転がり溝と前記移動体用転がり溝と接触して転がる接触転がり軌跡がほぼ環状な負荷区域を呈する複数の転がり具と、前記無限循環経路に収容され、条状を呈し撓み性を有する連結部と、複数の仕切部と、を含み、前記連結部により前記仕切部が等距離に配列され、隣接する前記仕切部同士の間には、前記転がり具を収容する収容区が形成され、前記転がり具と、隣接する前記仕切部同士との接触区は、互いに連接しない二つの円弧を含むチェーンと、を含むことを特徴とする。 According to the linear transmission member of the present invention, a rail provided with a rail rolling groove on the outer surface, a moving body rolling groove corresponding to the rail rolling groove provided to the rail, and provided with the rail rolling groove, the rail rolling groove. And a moving path in which an endless circulation path is formed by connecting both ends of the load path to both ends of the circulation path, and the endless circulation path. And the movable body is reciprocally movable with respect to the rail, and the rail rolling groove is not in contact with the rail rolling groove in the circulation path, and the rail rolling groove is in the load path. The contact rolling trajectory that rolls in contact with the rolling groove for the rail and the rolling groove for the moving body is substantially annular. A plurality of rolling tools exhibiting a load area, a connecting portion that is accommodated in the endless circulation path, has a strip shape and has flexibility, and a plurality of partition portions, and the partition portions are equidistant by the connection portions. An accommodation section that accommodates the rolling tool is formed between the adjacent partition portions that are arranged, and the contact section between the rolling tool and the adjacent partition portions includes two arcs that are not connected to each other. And a chain including.
本発明のリニア伝動部材によると、前記円弧の円心角は約90度であり、前記円弧の内側に沿って一つの潤滑油通路が形成されることを特徴とする。 According to the linear transmission member of the present invention, the circular center angle of the arc is about 90 degrees, and one lubricating oil passage is formed along the inner side of the arc.
本発明のリニア伝動部材によると、前記仕切部に二つの保持具が設けられ、前記保持具と前記転がり具との接触区が前記円弧を形成し、前記仕切部には、二つの前記保持具を連接する連接具が設けられることを特徴とする。 According to the linear transmission member of the present invention, the partition portion is provided with two holders, a contact area between the holder and the rolling tool forms the arc, and the partition portion includes the two holders. A connecting tool for connecting the two is provided.
本発明のリニア伝動部材によると、前記保持具と前記転がり具との接触区が凹面ではなく、これにより、前記保持具の表面は、前記転がり具と全面に接触しなくなり、前記転がり具との接触点が楔形を呈し、これにより、潤滑効果を増加させることができることを特徴とする。 According to the linear transmission member of the present invention, the contact area between the holding tool and the rolling tool is not a concave surface, whereby the surface of the holding tool does not contact the entire surface of the rolling tool. The contact point has a wedge shape, whereby the lubrication effect can be increased.
本発明のチェーンによると、条状を呈し撓み性を有する連結部と、複数の仕切部と、を含み、前記連結部により前記仕切部が等距離に配列され、隣接する前記仕切部同士の間には、リニア伝動部材の転がり具を収容する収容区が形成され、前記仕切部には、円弧状を呈し互いに連接しない保持具が二つ設けられ、前記保持具は、前記リニア伝動部材の前記転がり具と接触するためのものであり、前記リニア伝動部材の前記転がり具を保持することを特徴とする。 According to the chain of the present invention, it includes a connecting portion having a strip shape and having flexibility, and a plurality of partition portions, and the partition portions are arranged at equal distances by the connecting portions, and between the adjacent partition portions. Is formed with an accommodation section for accommodating the rolling element of the linear transmission member, and the partition portion is provided with two holders that are arcuate and are not connected to each other. It is for contacting with a rolling tool and is characterized by holding the rolling tool of the linear transmission member.
本発明のリニア伝動部材とそのチェーンによれば、次のような効果がある。
(1)上型と下型とによりチェーンを一体に射出成形することができ、大量生産が可能であり、金型の機構を簡単化することができ、金型の作製コストを減少することができる。
The linear transmission member and its chain according to the present invention have the following effects.
(1) The chain can be integrally injection-molded by the upper mold and the lower mold, mass production is possible, the mold mechanism can be simplified, and the mold fabrication cost can be reduced. it can.
(2)チェーンにより転がり具の負荷区域にある潤滑油が掠め取られる問題を解決することができ、負荷区域に潤滑油を供給することができる。 (2) The problem that the lubricating oil in the load area of the rolling tool is praised by the chain can be solved, and the lubricating oil can be supplied to the load area.
以下、本発明の実施の形態を図面に基づいて説明する。
まず、図3乃至図9を参照する。レール1は、条状を呈し、外面にレール用転がり溝110が設けられ、レール用転がり溝110の断面の輪郭が転がり具5の輪郭に近似する。図3に示す実施例はリニアガイドウェーであり、そのレール1の断面形状が長方形を呈し、レール用転がり溝110が直線状を呈する。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, reference will be made to FIGS. The rail 1 has a strip shape and is provided with a rail rolling groove 110 on the outer surface, and the contour of the cross section of the rail rolling groove 110 approximates the contour of the rolling tool 5. The embodiment shown in FIG. 3 is a linear guideway, the rail 1 has a rectangular cross-sectional shape, and the rail rolling groove 110 has a linear shape.
移動体2がレール1に嵌め設けられる。移動体2は、移動本体20と、移動本体20の両側に設けられる転向子21、21と、から構成され、移動本体20と二つの転向子21が一体に成形されてもよい。移動体2には、レール用転がり溝110に対応する移動体用転がり溝202が設けられ、移動体用転がり溝202の断面の輪郭がレール用転がり溝110の輪郭に近似する。レール用転がり溝110と移動体用転がり溝202とから負荷経路90が構成され(図4を参照)、この区域において、転がり体5(転がり具?不統一)がレール転がり溝110と移動体用転がり溝202の間からの負荷を受け、且つ移動体2がレール1に対して往復動することができる。移動体2が外力を受けているときには、転がり体5(転がり具?不統一)が移動体2とレール1の間に挟まれ、移動体2とレール1は前記外力を相殺する反力を提供する。移動本体20には、転がり体5を通過可能な回流穴201が設けられ、図4に示すように、回流穴201が移動本体20の両端面を貫通する。図3に示したのはリニアガイドウェーであり、移動体用転がり溝202が直線状を呈する。 A moving body 2 is fitted on the rail 1. The moving body 2 includes a moving main body 20 and turning elements 21 and 21 provided on both sides of the moving main body 20, and the moving main body 20 and the two turning elements 21 may be integrally formed. The moving body 2 is provided with a moving body rolling groove 202 corresponding to the rail rolling groove 110, and the contour of the cross section of the moving body rolling groove 202 approximates the contour of the rail rolling groove 110. The rail rolling groove 110 and the moving body rolling groove 202 constitute a load path 90 (see FIG. 4). In this area, the rolling body 5 (rolling tool? Ununiform) is used for the rail rolling groove 110 and the moving body. A load from between the rolling grooves 202 is received, and the moving body 2 can reciprocate with respect to the rail 1. When the moving body 2 is subjected to an external force, the rolling body 5 (rolling tool? Unmatched) is sandwiched between the moving body 2 and the rail 1, and the moving body 2 and the rail 1 provide a reaction force that cancels the external force. To do. The moving main body 20 is provided with a circulating hole 201 that can pass through the rolling body 5, and the circulating hole 201 penetrates both end surfaces of the moving main body 20 as shown in FIG. 4. FIG. 3 shows a linear guideway in which the moving body rolling groove 202 is linear.
転向子21は、移動本体20の両側に付着され、移動本体20と共に移動する。本発明では、移動本体20と、移動本体20の両側にある転向子21と、の組合体を移動体2と称する。転向子21に転向経路211が設けられ、転向経路211の両端を回流穴201とそれぞれ連接して形成される経路と、負荷経路90と、から無限循環経路が構成される。転向経路211を回流穴201と接続して別の転向子の転向経路と接続して形成される経路を回流通路Aと称し、回流通路Aにより負荷経路90における転がり具5が無限に循環可能である。あるリニア伝動部材の回流通路が一体成形されるため、回流通路Aを回流穴201と転向経路211に明確に区別することが困難であり、移動体2に回流穴201が設けられるかどうかが本発明の必要な特徴ではない。負荷経路90の両端がそれぞれ回流経路Aの両端と接続して無限循環回路を形成するため、転がり具5が無限に循環可能である。 The diverter 21 is attached to both sides of the moving main body 20 and moves together with the moving main body 20. In the present invention, a combination of the moving body 20 and the turning elements 21 on both sides of the moving body 20 is referred to as a moving body 2. A turning path 211 is provided in the turning element 21, and an infinite circulation path is configured by the path formed by connecting both ends of the turning path 211 to the circulation hole 201 and the load path 90. A path formed by connecting the turning path 211 to the circulation hole 201 and connecting to the turning path of another turning element is called a circulation path A, and the rolling tool 5 in the load path 90 circulates infinitely by the circulation path A. Is possible. Since the circulation path of a certain linear transmission member is integrally formed, it is difficult to clearly distinguish the circulation path A into the circulation hole 201 and the turning path 211, and whether or not the circulation hole 201 is provided in the moving body 2. Is not a necessary feature of the present invention. Since both ends of the load path 90 are connected to both ends of the circulation path A to form an infinite circulation circuit, the rolling tool 5 can circulate indefinitely.
複数の転がり具5が前記無限循環回路に収容され、無限に循環可能であり、これにより、移動体5はレール1に対して往復動することができる。回流経路Aにおいて、転がり具5がレール用転がり溝110及び移動体用転がり溝202と接触せず、負荷経路90において、転がり具5がレール用転がり溝110及び移動体用転がり溝202と接触する。図6、図8及び図9に示すように、転がり具5がレール用転がり溝110及び移動体用転がり溝202を転がり、転がり具5が転がっているときに、その接触軌跡がほぼリング状の区域を呈し、これは負荷区域51を称する。 A plurality of rolling tools 5 are accommodated in the infinite circulation circuit and can be circulated infinitely, whereby the moving body 5 can reciprocate with respect to the rail 1. In the circulation path A, the rolling tool 5 does not come into contact with the rail rolling groove 110 and the moving body rolling groove 202, and in the load path 90, the rolling tool 5 comes into contact with the rail rolling groove 110 and the moving body rolling groove 202. . As shown in FIGS. 6, 8, and 9, when the rolling tool 5 rolls the rolling groove 110 for the rail and the rolling groove 202 for the moving body, and the rolling tool 5 is rolling, the contact locus is substantially ring-shaped. Presents an area, which is referred to as a load area 51.
チェーン4は、前記無限循環経路に収容され、条状を呈し撓み性を有する連結部41と、複数の仕切部42と、を含む。連結部41により仕切部42が等距離に配列され、隣接する仕切部42同士の間には、転がり具5を収容する収容区43が形成される。本実施例では、連結部41が一本あるが、本発明はこれに限定されず、連結部41は、2本あり、各仕切部42の両側に対称に設けられてもよい。図5に示すように、仕切部42は、一つの連接具421と、二つの保持具422と、を含む。保持具422と転がり具5との接触区は円弧形状を呈する接触区TOに形成される。連接具421は、シート状を呈し、その厚さが保持具422の厚さより小さい。連接具421は、波状を呈するプレートでもいいし、円形を呈するプレートでもいいし、条状を呈するプレートでもいいし、不規則状を呈するプレートでもよい。本実施例では、連接具421は、両端が切られた円形を呈するプレートであり、その厚さが保持具422の厚さより小さく、二つの保持具422を連接するものである。連接具421が二つの保持具422と連接し、これにより、同一の仕切部42が二つの保持具422と連接する。連接具421は、シート状を呈するため、屈折することができ、二つの保持具422の間が撓み可能であり、転がり具5の循環に応じて変形可能である。 The chain 4 is accommodated in the endless circulation path, and includes a connecting portion 41 having a strip shape and having flexibility, and a plurality of partition portions 42. The partition portions 42 are arranged at equal distances by the connecting portions 41, and a storage section 43 for storing the rolling tool 5 is formed between the adjacent partition portions 42. In the present embodiment, there is one connecting portion 41, but the present invention is not limited to this, and there are two connecting portions 41, which may be provided symmetrically on both sides of each partition portion 42. As shown in FIG. 5, the partition portion 42 includes one connecting tool 421 and two holding tools 422. A contact area between the holder 422 and the rolling tool 5 is formed in a contact area TO having an arc shape. The connecting tool 421 has a sheet shape, and the thickness thereof is smaller than the thickness of the holding tool 422. The connecting tool 421 may be a wavy plate, a circular plate, a striped plate, or an irregular plate. In this embodiment, the connecting tool 421 is a circular plate with both ends cut, and its thickness is smaller than the thickness of the holding tool 422, and connects the two holding tools 422. The connecting tool 421 is connected to the two holding tools 422, whereby the same partition portion 42 is connected to the two holding tools 422. Since the connecting tool 421 has a sheet shape, the connecting tool 421 can be refracted, can be bent between the two holding tools 422, and can be deformed according to the circulation of the rolling tool 5.
図7及び図10を参照する。転がり具5と、隣接する仕切部42との接触区TOは、互いに連接しない円弧状区域であり、二つの円弧が互いに連接しないため、二つの円弧の円心角の和が360度より小さく、平均的に分けると、各円弧の円心角YUが180度よりも小さい。図10に示すように、円弧の円心角YUが90度であることが好ましい。そうすると、潤滑油が転がり具5の負荷区域51にガイドされる。図7を参照する。保持具422と転がり具5との接触区TOが凹面とする設計をされず、これにより、保持具422の表面と転がり具5の接触が点接触になり、潤滑効果が更に良くなる。図7に示すように、保持具422の外面は、円柱面であり、すなわち、突出する円弧面であり、転がり具5の転がり面も突出する曲面であり、これにより、転がり具5が保持具422に対して摺動(転がらず)しているときには、油膜の厚さが徐々に小さくなり、潤滑効果が更に良くなる。転がり具5は、保持具422に対して摺動しても、油膜が保持される。保持具422の外面は、非凹曲面、又は転がり具5の輪郭の曲率半径より大きい凹面とする設計されてもよい。上記の非凹曲面は、凸曲面、平面と、を含む。保持具422の外面が転がり具5の輪郭に近似するほど、製造の制御を精確にすることが必要であるため、保持具422の外面を非凹曲面に設計すれば、製造の安定性がより良い。 Please refer to FIG. 7 and FIG. The contact area TO between the rolling tool 5 and the adjacent partition 42 is an arc-shaped area that is not connected to each other, and the two arcs are not connected to each other, so the sum of the center angles of the two arcs is less than 360 degrees, When divided on average, the circular center angle YU of each arc is smaller than 180 degrees. As shown in FIG. 10, it is preferable that the circular arc center angle YU is 90 degrees. Then, the lubricating oil is guided to the load area 51 of the rolling tool 5. Please refer to FIG. The contact section TO between the holding tool 422 and the rolling tool 5 is not designed to be a concave surface, whereby the contact between the surface of the holding tool 422 and the rolling tool 5 becomes a point contact, and the lubrication effect is further improved. As shown in FIG. 7, the outer surface of the holding tool 422 is a cylindrical surface, that is, a protruding arc surface, and a curved surface from which the rolling surface of the rolling tool 5 also protrudes, whereby the rolling tool 5 is held by the holding tool. When sliding (not rolling) with respect to 422, the thickness of the oil film gradually decreases, and the lubricating effect is further improved. Even if the rolling tool 5 slides on the holding tool 422, the oil film is held. The outer surface of the holder 422 may be designed to be a non-concave curved surface or a concave surface that is larger than the radius of curvature of the contour of the rolling tool 5. The non-concave curved surface includes a convex curved surface and a flat surface. As the outer surface of the holder 422 approximates the contour of the rolling tool 5, it is necessary to make the manufacturing control more accurate. Therefore, if the outer surface of the holder 422 is designed to be a non-concave curved surface, the manufacturing stability is further improved. good.
図8に示すように、連結部41の縦方向を軸方向Xと定義し、図9に示すように、二つの連結部41の縦方向に沿って構成される曲面をガイド面Eと定義し、中心面52は、各仕切部42の中心を通過しガイド面Eと直交する曲面と定義する。本発明では、金型の作製コストを減少し、金型の構造を簡単化するために、チェーン4の射出成形金型が上下型だけあり、上下型の分割線がガイド面Eに沿い、各仕切部42の二つの保持具422が交錯するように設けられ(それぞれ第1象限および第3象限、又は第2象限および第4象限に位置)、チェーン4の離型を容易にするために、保持具422の端面4221と中心面52の間に開角Qが設計され、開角Qは1〜7度であることが好ましい。図9に示すように、開角Qがガイド面Eから外側へ拡張し、これにより、離型しているときにチェーン4が干渉せず、チェーン4の表面もスムーズになる。チェーン4の表面がスムーズになると、チェーン4が無限循環経路に干渉しないため、チェーン4の運行が更に順調になる。 As shown in FIG. 8, the longitudinal direction of the connecting portion 41 is defined as the axial direction X, and the curved surface formed along the longitudinal direction of the two connecting portions 41 is defined as the guide surface E as shown in FIG. The center plane 52 is defined as a curved surface that passes through the center of each partition portion 42 and is orthogonal to the guide surface E. In the present invention, in order to reduce the manufacturing cost of the mold and simplify the structure of the mold, the injection mold of the chain 4 is only the upper and lower molds, and the dividing lines of the upper and lower molds are along the guide surface E. In order to facilitate the release of the chain 4, two holders 422 of the partition portion 42 are provided so as to intersect (located in the first quadrant and the third quadrant, or the second quadrant and the fourth quadrant, respectively) An opening angle Q is designed between the end surface 4221 and the center surface 52 of the holder 422, and the opening angle Q is preferably 1 to 7 degrees. As shown in FIG. 9, the opening angle Q extends outward from the guide surface E, so that the chain 4 does not interfere when the mold is released, and the surface of the chain 4 becomes smooth. When the surface of the chain 4 becomes smooth, the chain 4 does not interfere with the infinite circulation path, so that the operation of the chain 4 becomes smoother.
図8を参照する。連接具421の軸方向Xに沿う端面4211と、転がり具5との間に、第1隙間Tが形成され、第1隙間Tにより潤滑油が順調に通過可能である。 Please refer to FIG. A first gap T is formed between the end face 4211 along the axial direction X of the connecting tool 421 and the rolling tool 5, and the lubricating oil can pass smoothly through the first gap T.
図10を参照する。転がり具5は、ボールであり、保持具422との接触箇所が円弧状の接触区TOに形成され、円弧状の接触区TOの内側に潤滑油通路Gが形成される。転がり具5が図10における水平線を軸心として回転するときには、転がり具5の表面の負荷区域51がリング状(斜線部分)を呈する。転がり具5の表面にある潤滑油が下から上に回転するときには、G1からG3などの潤滑油通路が形成され、転がり具5の表面に付着する潤滑油は、上に移動して上側にある円弧状の接触区TOに近接するときに、潤滑油通路G1からG3が右に寄って転がり具5の表面の負荷区域51に到達する。潤滑油通路G1からG3により、転がり5の表面(左側)の非負荷区域にある潤滑油が負荷区域51にガイドされる。そうすると、負荷区域51が充分に潤滑される。転がり具5の表面にある潤滑油が上から下に回転するときには、G4からG6などの潤滑油通路が形成され、転がり具5の表面に付着する潤滑油は、下に移動して下側にある円弧状の接触区TOに近接するときに、潤滑油通路G4からG6が左に寄って転がり具5の表面の負荷区域51に到達する。潤滑油通路G4からG6により、転がり5の表面(右側)の非負荷区域にある潤滑油が負荷区域51にガイドされる。そうすると、負荷区域51が充分に潤滑される。転がり具が正回転または逆回転しても、転がり具5の表面の負荷区域51が充分に潤滑される。潤滑油通路Gは潤滑油通路G1からG6などを含む。図10における矢印が潤滑油通路Gの流動方向を示し、各潤滑油通路がほぼC字形を呈し、且つ潤滑油通路Gが転がり具5の負荷区域51(斜線部分)を通過する。収容区43内に負荷区域51が回転しているときには、潤滑油通路Gにより負荷区域51に潤滑油が充分に供給される。チェーンの二つの保持具422がそれぞれ転がり具5の負荷区域51の両側に設けられ、負荷区域51の両側が潤滑油通路Gを有し、これにより、潤滑油が転がり具5の負荷区域51の両側にガイドされる。 Please refer to FIG. The rolling tool 5 is a ball, and a contact point with the holding tool 422 is formed in an arc-shaped contact area TO, and a lubricating oil passage G is formed inside the arc-shaped contact area TO. When the rolling tool 5 rotates about the horizontal line in FIG. 10, the load area 51 on the surface of the rolling tool 5 has a ring shape (hatched portion). When the lubricating oil on the surface of the rolling tool 5 rotates from bottom to top, lubricating oil passages such as G1 to G3 are formed, and the lubricating oil adhering to the surface of the rolling tool 5 moves upward and is on the upper side. When approaching the arc-shaped contact zone TO, the lubricating oil passages G1 to G3 approach the right and reach the load zone 51 on the surface of the rolling tool 5. Lubricating oil in the unloaded area on the surface (left side) of the rolling 5 is guided to the loaded area 51 by the lubricating oil passages G1 to G3. As a result, the load area 51 is sufficiently lubricated. When the lubricating oil on the surface of the rolling tool 5 rotates from top to bottom, lubricating oil passages such as G4 to G6 are formed, and the lubricating oil adhering to the surface of the rolling tool 5 moves downward and moves downward. When approaching a certain arc-shaped contact zone TO, the lubricating oil passages G4 to G6 approach the left and reach the load area 51 on the surface of the rolling tool 5. Lubricating oil in the unloaded area on the surface (right side) of the rolling 5 is guided to the loaded area 51 by the lubricating oil passages G4 to G6. As a result, the load area 51 is sufficiently lubricated. Even if the rolling tool rotates forward or backward, the load area 51 on the surface of the rolling tool 5 is sufficiently lubricated. The lubricating oil passage G includes lubricating oil passages G1 to G6. An arrow in FIG. 10 indicates the flow direction of the lubricating oil passage G, each lubricating oil passage has a substantially C shape, and the lubricating oil passage G passes through the load area 51 (shaded portion) of the rolling tool 5. When the load area 51 is rotating in the accommodation area 43, the lubricating oil is sufficiently supplied to the load area 51 through the lubricating oil passage G. Two holders 422 of the chain are respectively provided on both sides of the load area 51 of the rolling tool 5, and both sides of the load area 51 have a lubricating oil passage G, so that the lubricating oil is in the load area 51 of the rolling tool 5. Guided on both sides.
本発明では、保持具422の端面4221と連接具421の交差点4222が転がり具5の中心面52から第2隙間Dでずれるため、潤滑油通路Gが増大される。 In the present invention, since the intersection 4222 of the end surface 4221 of the holding tool 422 and the connecting tool 421 is displaced from the center surface 52 of the rolling tool 5 by the second gap D, the lubricating oil passage G is increased.
本発明は、リニア伝動部材に適用することができる。 The present invention can be applied to a linear transmission member.
1:レール、2:移動体、4:チェーン、5:転がり具、11:転がり具、20:移動本体、21:転向子、41:連結部、42:仕切部、43:収容区、51:負荷区域(斜線部分)、52:中心面、61:チェーン、90:負荷経路、110:レール用転がり溝、111:負荷区域、201:回流穴、202:移動体用転がり溝、211:転向経路、421:連接具、422:保持具、511:仕切ブロック、512:連結チェーン、611:仕切板、612:連結チェーン、613:ホール、4211:端面、4221:端面、4222:交差点、A:回流経路、D:第2隙間、E:ガイド面、G:潤滑油通路、G1〜G6:潤滑油通路、Q:開角、T:第1隙間、TO:接触区、X:軸方向、YU:円心角。 1: rail, 2: moving body, 4: chain, 5: rolling tool, 11: rolling tool, 20: moving body, 21: turning element, 41: connecting part, 42: partitioning part, 43: accommodating section, 51: Load area (hatched portion), 52: center plane, 61: chain, 90: load path, 110: rolling groove for rail, 111: load area, 201: circulating hole, 202: rolling groove for moving body, 211: turning path , 421: connecting tool, 422: holding tool, 511: partition block, 512: connecting chain, 611: partition plate, 612: connecting chain, 613: hole, 4211: end face, 4221: end face, 4222: intersection, A: circulating current Path, D: second gap, E: guide surface, G: lubricating oil passage, G1 to G6: lubricating oil passage, Q: opening angle, T: first gap, TO: contact zone, X: axial direction, YU: Circle heart angle.
Claims (5)
前記レールに嵌め設けられ、前記レール用転がり溝に対応する移動体用転がり溝が設けられ、前記レール用転がり溝と前記移動体用転がり溝の間に負荷経路が形成されるとともに、前記負荷経路の両端が回流経路の両端とそれぞれ連接することにより、無限循環経路が形成される移動体と、
前記無限循環経路内に転がり、前記移動体を前記レールに対して往復動可能にし、前記回流経路において、前記レール用転がり溝と前記移動体用転がり溝と接触せず、前記負荷経路において、前記レール用転がり溝と前記移動体用転がり溝と接触して負荷を受け可能であり、前記レール用転がり溝と前記移動体用転がり溝と接触して転がる接触転がり軌跡がほぼ環状な負荷区域を呈する複数の転がり具と、
前記無限循環経路に収容され、条状を呈し撓み性を有する連結部と、複数の仕切部と、を含み、前記連結部により前記仕切部が等距離に配列され、隣接する前記仕切部同士の間には、前記転がり具を収容する収容区が形成され、前記転がり具と、隣接する前記仕切部同士との接触区は、互いに連接しない二つの円弧を含むチェーンと、
を含むことを特徴とする、リニア伝動部材。 A rail provided with rail rolling grooves on the outer surface;
A moving body rolling groove corresponding to the rail rolling groove is provided, and a load path is formed between the rail rolling groove and the moving body rolling groove. A movable body in which an infinite circulation path is formed by connecting both ends of the circulating path to both ends of the circulation path;
Rolls in the endless circulation path, enables the moving body to reciprocate with respect to the rail, does not contact the rolling groove for rail and the rolling groove for moving body in the circulation path, and in the load path, The rolling groove for rail and the rolling groove for moving body can be subjected to a load, and the contact rolling locus rolling in contact with the rolling groove for rail and the rolling groove for moving body presents a substantially annular load area. Multiple rolling tools,
A connecting portion that is accommodated in the endless circulation path, has a strip shape and has flexibility, and a plurality of partition portions, and the partition portions are arranged at equal distances by the connecting portions, and the adjacent partition portions In the middle, an accommodation section for accommodating the rolling tool is formed, and a contact section between the rolling tool and the adjacent partition portions includes a chain including two arcs that are not connected to each other;
A linear transmission member comprising:
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JP2003239964A (en) * | 2002-02-19 | 2003-08-27 | Nsk Ltd | Linear motion device |
JP3105042U (en) * | 2003-07-21 | 2004-10-21 | 国際直線科技股▲分▼有限公司 | Linear guide chain |
JP3138974U (en) * | 2007-04-13 | 2008-01-31 | 精浚科技股▲分▼有限公司 | Rolling element cage |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2018105893A1 (en) * | 2016-12-05 | 2018-06-14 | 주식회사 원에스티 | Linear motion guide and assembly method |
KR20180064627A (en) * | 2016-12-05 | 2018-06-15 | (주)원에스티 | Linear motion guide and fabrication method for the same |
KR101954921B1 (en) * | 2016-12-05 | 2019-03-07 | (주)원에스티 | Linear motion guide and fabrication method for the same |
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