JP6541144B2 - Slide bearing - Google Patents

Slide bearing Download PDF

Info

Publication number
JP6541144B2
JP6541144B2 JP2014077358A JP2014077358A JP6541144B2 JP 6541144 B2 JP6541144 B2 JP 6541144B2 JP 2014077358 A JP2014077358 A JP 2014077358A JP 2014077358 A JP2014077358 A JP 2014077358A JP 6541144 B2 JP6541144 B2 JP 6541144B2
Authority
JP
Japan
Prior art keywords
axial
bearing
half member
narrow groove
axial width
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2014077358A
Other languages
Japanese (ja)
Other versions
JP2015197214A (en
Inventor
克宏 芦原
克宏 芦原
悠一朗 梶木
悠一朗 梶木
裕紀 高田
裕紀 高田
暁拡 本田
暁拡 本田
村上 元一
元一 村上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiho Kogyo Co Ltd
Toyota Motor Corp
Original Assignee
Taiho Kogyo Co Ltd
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taiho Kogyo Co Ltd, Toyota Motor Corp filed Critical Taiho Kogyo Co Ltd
Priority to JP2014077358A priority Critical patent/JP6541144B2/en
Publication of JP2015197214A publication Critical patent/JP2015197214A/en
Application granted granted Critical
Publication of JP6541144B2 publication Critical patent/JP6541144B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sliding-Contact Bearings (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Description

本発明は、すべり軸受の技術に関し、円筒を軸方向と平行に二分割した半割部材を上下に配置したすべり軸受の技術に関する。   The present invention relates to the technology of a slide bearing, and relates to the technology of a slide bearing in which half members obtained by dividing a cylinder into two in parallel with the axial direction are disposed one above the other.

従来、エンジンのクランクシャフトを軸支するための軸受であって、円筒形状を二分割した二つの部材を合わせる半割れ構造のすべり軸受が公知となっている。また、前記軸受の摺動面積を減らし、フリクション低減効果を得るために、前記軸受の幅を狭くする構造がある。しかし、軸受の幅を狭くすると、流出油量が増加していた。そこで、前記軸受の軸方向両端部に、全周に逃げ部分(細溝)を形成した軸受が公知となっている(例えば、特許文献1参照)。   2. Description of the Related Art Conventionally, there has been known a sliding bearing for supporting a crankshaft of an engine, which is a half-split structure in which two members obtained by dividing a cylindrical shape into two are combined. In addition, there is a structure in which the width of the bearing is narrowed in order to reduce the sliding area of the bearing and obtain a friction reduction effect. However, when the width of the bearing was narrowed, the amount of oil spilled was increasing. Then, the bearing which formed the relief part (thin groove) in the perimeter in the axial direction both ends of the above-mentioned bearing is publicly known (for example, refer to patent documents 1).

特表2003−532036号公報Japanese Patent Publication No. 2003-532036

しかし、従来の全周に細溝を形成した軸受では、摺動面積減少により、負荷容量が低下し、良好な潤滑に必要な油膜厚さを確保することができず、且つ、総和の流出油量が多かった。   However, in the conventional bearing in which the narrow groove is formed on the entire circumference, the load capacity is reduced due to the reduction of the sliding area, and the oil film thickness necessary for good lubrication can not be secured. There was a large amount.

そこで、本発明は係る課題に鑑み、フリクション低減効果を得ることができ、総和の流出油量を抑えることができる軸受を提供する。   Then, in view of the subject which concerns on this invention, the friction reduction effect can be acquired and the bearing which can suppress the amount of oil spills of a sum total is provided.

本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。   The problem to be solved by the present invention is as described above, and next, means for solving the problem will be described.

即ち、請求項1においては、円筒を軸方向と平行に二分割した半割部材を上下に配置したすべり軸受であって、前記すべり軸受によって保持する軸の回転方向における上側の前記半割部材の下手側の端面と、下側の前記半割部材の前記軸の回転方向における上手側の端面との合わせ面の位置を0°と規定し、該0°の位置から前記軸の回転方向に対する反対方向への回転角度として軸受角度を規定する場合において、下側の前記半割部材に、前記軸受角度が180°の位置から、前記軸受角度が180°より大きく270°以下の位置までの範囲のみにおいて、円周方向を長手方向とし、軸方向に並列する2本の細溝を設け、前記細溝の軸方向端面側の周縁部に、前記細溝の底部よりも前記半割部材の半径方向内側へ突出するとともに、前記半割部材の内周面よりも半径方向外側へ凹んだ段差部を設け、前記段差部の軸方向の幅の和が、0mmより大きく前記半割部材の軸方向の幅から細溝の軸方向の幅の和を減算した長さ以下となるように形成したものである。 That is, according to the first aspect of the present invention, there is provided a slide bearing in which half members obtained by dividing a cylinder into two halves in parallel with the axial direction are vertically disposed, the upper half member in the rotational direction of the shaft held by the slide bearing. The position of the mating surface between the end face on the lower side and the end face on the upper side in the direction of rotation of the lower half of the shaft is defined as 0 °, and from the position of 0 ° opposite to the direction of rotation of the axis range in the case of defining a bearing angle as the rotation angle of the direction, the half-split elements of the lower, from the position before SL bearing angle 180 °, to a position of the bearing angle is greater than 180 ° 270 ° or less Only in the circumferential direction, the longitudinal direction is the same, and two narrow grooves are provided in parallel in the axial direction, and the radius of the half member is smaller than the bottom of the narrow groove at the peripheral edge on the axial end face side of the narrow groove. While projecting inward in the direction A stepped portion recessed outward in the radial direction with respect to the inner circumferential surface of the member is provided, and the sum of the axial widths of the stepped portions is larger than 0 mm to the axial width of the narrow groove from the axial width of the half member It is formed to be equal to or less than the length obtained by subtracting the sum of.

請求項2においては、前記段差部の軸方向の幅の和の、前記半割部材の軸方向の幅に対する割合は、0%より大きく70%以下となるように形成したものである。   According to the second aspect of the present invention, the ratio of the sum of the axial widths of the stepped portions to the axial width of the half members is greater than 0% and not more than 70%.

本発明の効果として、以下に示すような効果を奏する。   The effects of the present invention are as follows.

すなわち、油膜圧力の発生を妨げない程度の細溝を設けることで、摺動面積を減らしつつ、フリクション低減効果を得ることができ、かつ、総和の流出油量を抑えることができる。
また、前記細溝の周縁部に段差部を設けることで、効果的にフリクション低減効果を得ることができ、かつ、総和の流出油量を抑えることができる。
That is, by providing the fine groove not to prevent the generation of the oil film pressure, it is possible to obtain the friction reduction effect while reducing the sliding area, and to suppress the total amount of oil outflow.
Further, by providing the step portion at the peripheral portion of the narrow groove, it is possible to effectively obtain the friction reduction effect, and to suppress the total amount of oil spilled.

本発明の実施形態に係るすべり軸受を示す正面図。The front view showing the slide bearing concerning the embodiment of the present invention. (a)本発明の実施形態に係る半割部材を示す平面拡大図。(b)同じくA−A線断面拡大図。(c)同じくB−B線断面拡大図。(A) The enlarged plane view which shows the half member based on embodiment of this invention. (B) Similarly the AA line cross section enlarged view. (C) Similarly the B-B line cross section enlarged view. 同じく、段差部の幅の和の半割部材の幅に対する割合と漏れ油量との関係を示すグラフ図。Similarly, the graph figure which shows the relationship between the ratio with respect to the width | variety of the half member of the sum of the width | variety of a level | step-difference part, and the amount of leaked oil. (a)本発明の第二の実施形態に係る半割部材を示す平面拡大図。(b)同じくA−A線断面拡大図。(c)同じくB−B線断面拡大図。(A) The plane enlarged view which shows the half member concerning 2nd embodiment of this invention. (B) Similarly the AA line cross section enlarged view. (C) Similarly the B-B line cross section enlarged view. (a)本発明の第三の実施形態に係る半割部材を示す平面拡大図。(b)同じくA−A線断面拡大図。(c)同じくB−B線断面拡大図。(A) The plane enlarged view which shows the half member based on 3rd embodiment of this invention. (B) Similarly the AA line cross section enlarged view. (C) Similarly the B-B line cross section enlarged view.

次に、発明の実施の形態を説明する。なお、図1はすべり軸受1の正面図であり、画面の上下を上下方向、画面の手前方向及び奥方向を前後方向とする。   Next, an embodiment of the invention will be described. In addition, FIG. 1 is a front view of the slide bearing 1, and let the upper and lower sides of a screen be the up-down direction, and let the near direction and the back direction of a screen be front and rear directions.

まず、第一の実施形態に係るすべり軸受1を構成する半割部材2について図1及び図2を用いて説明する。
すべり軸受1は円筒状の部材であり、図1に示すように、エンジンのクランクシャフト11のすべり軸受構造に適用される。すべり軸受1は、二つの半割部材2で構成されている。二つの半割部材2は、円筒を軸方向と平行に二分割した形状であり、断面が半円状となるように形成されている。本実施形態においては、半割部材2は上下に配置されており、左右に合わせ面が配置されている。クランクシャフト11をすべり軸受1で軸支する場合、所定の隙間が形成され、この隙間に対し図示せぬ油路から潤滑油が供給される。ここで、すべり軸受1を形成する円筒の中心軸方向を軸方向(前後方向)と定義する。また、すべり軸受1を形成する円筒の底面の円周に沿う方向を円周方向と定義する。また、すべり軸受1を形成する円筒の中心軸及び側面と直交する方向、すなわち、側面壁の厚さ方向を半径方向と定義する。
First, the half member 2 which comprises the slide bearing 1 which concerns on 1st embodiment is demonstrated using FIG.1 and FIG.2.
The slide bearing 1 is a cylindrical member, and as shown in FIG. 1, is applied to a slide bearing structure of a crankshaft 11 of an engine. The slide bearing 1 is composed of two half members 2. The two half members 2 have a shape obtained by dividing a cylinder into two in parallel with the axial direction, and are formed to have a semicircular cross section. In the present embodiment, the half members 2 are vertically disposed, and the right and left mating surfaces are disposed. When the crankshaft 11 is supported by the slide bearing 1, a predetermined gap is formed, and lubricating oil is supplied to the gap from an oil passage (not shown). Here, the central axis direction of the cylinder forming the slide bearing 1 is defined as the axial direction (front-rear direction). In addition, a direction along the circumference of the bottom surface of the cylinder forming the slide bearing 1 is defined as the circumferential direction. Further, a direction orthogonal to the central axis and the side surface of the cylinder forming the slide bearing 1, that is, the thickness direction of the side wall is defined as the radial direction.

図2においては、上側および下側の半割部材2を示している。なお、本実施形態においては、クランクシャフト11の回転方向を図1の矢印に示すように正面視時計回り方向とする。また、軸受角度ωは、図1における右端の位置を0度とし、図1において、反時計回り方向を正とする。すなわち、図1において、左端の位置の軸受角度ωが180度となり、下端の位置の軸受角度ωが270度となるように定義する。   In FIG. 2, the upper and lower half members 2 are shown. In the present embodiment, the rotational direction of the crankshaft 11 is in the clockwise direction as viewed from the front as shown by the arrow in FIG. Further, the bearing angle ω makes the position of the right end in FIG. 1 0 degrees, and in FIG. 1, makes the counterclockwise direction positive. That is, in FIG. 1, the bearing angle ω at the left end position is 180 degrees, and the bearing angle ω at the lower end position is 270 degrees.

図2(c)に示すように、半割部材2の軸方向の幅はW1である。また半割部材2の軸受厚さ(半径方向の長さ)はH1である。   As shown in FIG. 2C, the axial width of the half member 2 is W1. The bearing thickness (radial length) of the half member 2 is H1.

上側の半割部材2の内周には円周方向に溝が設けられており、中心に円形の孔が設けられている。また、上側の半割部材2の左右に合わせ面が配置されている。
下側の半割部材2の内周の摺動面において、その軸方向の両端面よりも内側に細溝3が形成されている。
A groove is provided circumferentially on the inner periphery of the upper half member 2, and a circular hole is provided at the center. Moreover, the mating surface is disposed on the left and right of the upper half member 2.
In the sliding surface on the inner periphery of the lower half member 2, a narrow groove 3 is formed on the inner side of both end surfaces in the axial direction.

細溝3は下側の半割部材2に設けられる。本実施形態においては、細溝3は、軸方向に並列して二本設けられている。細溝3の回転方向下流側端部3aは、半割部材2の回転方向下流側合わせ面2aに連通するように設けられている。
詳細には、細溝3の回転方向下流側端部3aが、半割部材2の回転方向下流側合わせ面2aに配置されている。
下側の半割部材2においては、図1の左側の合わせ面が回転方向下流側合わせ面2a、図1の右側の合わせ面が回転方向上流側合わせ面2bとなる。
The narrow groove 3 is provided in the lower half member 2. In the present embodiment, two narrow grooves 3 are provided in parallel in the axial direction. The rotation direction downstream end 3 a of the narrow groove 3 is provided to communicate with the rotation direction downstream mating surface 2 a of the half member 2.
Specifically, the downstream end portion 3 a of the narrow groove 3 in the rotational direction is disposed on the downstream mating surface 2 a of the half member 2 in the rotational direction.
In the lower half member 2, the left mating surface in FIG. 1 is the downstream mating surface 2a in the rotational direction, and the right mating surface in FIG. 1 is the upstream mating surface 2b in the rotational direction.

また、細溝3の軸方向端面側の周縁部に、半割部材2の内周面よりも半径方向外側へ凹んだ段差部4が設けられている。本実施形態においては、段差部4は、軸方向後側の細溝3の後側の周縁部及び軸方向前側の細溝3の前側の周縁部に二つ設けられており、その長手方向が細溝3の長手方向と平行になるように設けられている。段差部4の回転方向下流側端部4aは回転方向下流側合わせ面2aに連通するように設けられている。また、回転方向上流側端部4bは細溝3の回転方向上流側端部3bと円周方向において同じ位置まで設けられている。言い換えれば、段差部4の円周方向の長さは、細溝3の円周方向の長さlと同じ長さとなるように設けられている。   Further, at the peripheral edge on the end face side in the axial direction of the narrow groove 3, there is provided a step 4 which is recessed outward in the radial direction with respect to the inner peripheral surface of the half member 2. In the present embodiment, two step portions 4 are provided on the peripheral edge on the rear side of the narrow groove 3 on the rear side in the axial direction and on the peripheral edge on the front side of the narrow groove 3 on the front side in the axial direction It is provided so as to be parallel to the longitudinal direction of the narrow groove 3. The rotation direction downstream side end 4a of the step 4 is provided to communicate with the rotation direction downstream side mating surface 2a. Further, the rotational direction upstream end 4b is provided to the same position as the rotational direction upstream end 3b of the narrow groove 3 in the circumferential direction. In other words, the circumferential length of the step 4 is equal to the circumferential length l of the narrow groove 3.

次に、細溝3の詳細な構成について図2を用いて説明する。   Next, the detailed configuration of the narrow groove 3 will be described with reference to FIG.

細溝3の円周方向の長さlは、回転方向下流側端部3a(軸受角度が180度)から回転方向上流側端部3b(軸受角度がω1)までの長さに形成したものである。なお、軸受角度ω1は、180度よりも大きく270度以下である。より詳細には、軸受角度ω1は、通常225度よりも大きく270度以下である領域に存在する。   The circumferential length l of the narrow groove 3 is a length from the downstream end 3a in the rotational direction (bearing angle is 180 degrees) to the upstream end 3b in the rotational direction (bearing angle is ω1) is there. The bearing angle ω1 is greater than 180 degrees and equal to or less than 270 degrees. More specifically, the bearing angle ω1 is in a region that is usually larger than 225 degrees and not larger than 270 degrees.

細溝3の半径方向の深さH2は、図2(c)に示すように、軸受厚さH1よりも短くなるように形成されている。
二本の細溝3の軸方向の幅W2の和は、図2(c)に示すように、半割部材2の軸方向の幅W1よりも短くなるように構成されている。
The radial depth H2 of the narrow groove 3 is formed to be shorter than the bearing thickness H1, as shown in FIG. 2 (c).
The sum of the axial width W2 of the two narrow grooves 3 is configured to be shorter than the axial width W1 of the half member 2, as shown in FIG. 2 (c).

次に、段差部4の詳細な構成について図2を用いて説明する。   Next, the detailed configuration of the stepped portion 4 will be described with reference to FIG.

段差部4の円周方向の長さは、図2(b)に示すように、細溝3の円周方向の長さlと同じ長さとなるように設けられている。
段差部4の内周面4cから細溝3の底面3cまでの半径方向の長さH3は、図2(c)に示すように、細溝3の半径方向の深さH2以下となるように形成されている。
段差部4の軸方向の幅W3の和は、0mm以上であって半割部材2の軸方向の幅W1から細溝3の軸方向の幅W2の和を減算した長さ以下となるように構成されている。本実施形態においては、段差部4の軸方向の幅W3の和は、半割部材2の軸方向の幅W1から細溝3の軸方向の幅W2の和を減算した長さよりも短くなるように形成されている。
このように構成することにより、フリクション低減効果及び漏れ油量低減効果を得ることができる。
The circumferential length of the step portion 4 is set to be the same as the circumferential length l of the narrow groove 3 as shown in FIG. 2 (b).
The radial length H3 from the inner circumferential surface 4c of the step 4 to the bottom surface 3c of the narrow groove 3 is, as shown in FIG. 2C, equal to or less than the radial depth H2 of the narrow groove 3 It is formed.
The sum of the axial width W3 of the step 4 is not less than 0 mm and equal to or less the sum of the axial width W2 of the fine groove 3 and the axial width W1 of the half member 2 It is configured. In the present embodiment, the sum of the axial width W3 of the step portion 4 is shorter than the sum of the axial width W2 of the narrow groove 3 and the axial width W1 of the half member 2. Is formed.
With such a configuration, it is possible to obtain a friction reduction effect and a leakage oil amount reduction effect.

また、段差部4の軸方向の幅W3の和の、半割部材2の軸方向の幅W1に対する割合は、0%以上であって70%以下となるように形成したものである。本実施形態においては、段差部4の軸方向の幅W3の和の、半割部材2の軸方向の幅W1に対する割合は、略40%となるように形成したものである。   The ratio of the sum of the axial width W3 of the step 4 to the axial width W1 of the half member 2 is 0% or more and 70% or less. In the present embodiment, the ratio of the sum of the axial width W3 of the stepped portion 4 to the axial width W1 of the half member 2 is approximately 40%.

このように構成することにより、フリクション低減効果及び漏れ油量低減効果を効果的に得ることができる。例えば、図3に示すように、段差部4の軸方向の幅W3の和の、半割部材2の軸方向の幅W1に対する割合が0%から増加するにつれて、フリクション低減効果、漏れ油量低減効果が大きくなる。段差部4の軸方向の幅W3の和の、半割部材2の軸方向の幅W1に対する割合が70%を超えると、漏れ油量はほぼ一定となる。   With such a configuration, it is possible to effectively obtain the friction reduction effect and the leakage oil amount reduction effect. For example, as shown in FIG. 3, as the ratio of the sum of the axial width W3 of the step 4 to the axial width W1 of the half member 2 increases from 0%, the friction reduction effect and the leakage oil amount reduction The effect is greater. When the ratio of the sum of the axial width W3 of the step 4 to the axial width W1 of the half member 2 exceeds 70%, the amount of oil leakage becomes substantially constant.

次に、第二の実施形態に係る半割部材2について説明する。なお、第一の実施形態と同一の名称の部材については同一の符号を付している。
図4(a)から(c)には、第二の実施形態である半割部材2が示されている。本実施形態においては、段差部が設けられず、細溝3の軸方向端面側の側面が軸方向端面と連通している。
すなわち、本実施形態においては、段差部の軸方向の長さは0mmとなり、半割部材2の軸方向の幅W1に対する割合は0%となる。
このような構成においても、フリクション低減効果及び漏れ油量低減効果を効果的に得ることができる。
Next, the half member 2 according to the second embodiment will be described. In addition, about the member of the same name as 1st embodiment, the same code | symbol is attached | subjected.
The half member 2 which is 2nd embodiment is shown by FIG. 4 (a)-(c). In the present embodiment, no stepped portion is provided, and the side surface on the axial direction end face side of the narrow groove 3 communicates with the axial direction end face.
That is, in the present embodiment, the axial length of the step portion is 0 mm, and the ratio to the axial width W1 of the half member 2 is 0%.
Even in such a configuration, it is possible to effectively obtain the friction reduction effect and the leakage oil amount reduction effect.

次に、第三の実施形態に係る半割部材2について説明する。なお、第一の実施形態と同一の名称の部材については同一の符号を付している。
図5(a)から(c)には、第三の実施形態である半割部材2が示されている。本実施形態においては、細溝3が一つ設けられており、その軸方向両側の周縁部に段差部4が設けられている。
Next, the half member 2 according to the third embodiment will be described. In addition, about the member of the same name as 1st embodiment, the same code | symbol is attached | subjected.
The half member 2 which is 3rd embodiment is shown by FIG. 5 (a)-(c). In the present embodiment, one narrow groove 3 is provided, and the step portion 4 is provided on the peripheral edge on both sides in the axial direction.

次に、細溝3の詳細な構成について図5を用いて説明する。   Next, the detailed configuration of the narrow groove 3 will be described with reference to FIG.

細溝3の円周方向の長さlは、回転方向下流側端部3a(軸受角度が180度)から回転方向上流側端部3b(軸受角度がω1)までの長さに形成したものである。なお、軸受角度ω1は、180度よりも大きく270度以下である。より詳細には、軸受角度ω1は、通常225度よりも大きく270度以下である領域に存在する。   The circumferential length l of the narrow groove 3 is a length from the downstream end 3a in the rotational direction (bearing angle is 180 degrees) to the upstream end 3b in the rotational direction (bearing angle is ω1) is there. The bearing angle ω1 is greater than 180 degrees and equal to or less than 270 degrees. More specifically, the bearing angle ω1 is in a region that is usually larger than 225 degrees and not larger than 270 degrees.

細溝3の半径方向の深さH2は、図5(c)に示すように、軸受厚さH1よりも短くなるように形成されている。
細溝3の軸方向の幅W2は、図5(c)に示すように、半割部材2の軸方向の幅W1よりも短くなるように構成されている。
The radial depth H2 of the narrow groove 3 is formed to be shorter than the bearing thickness H1, as shown in FIG. 5 (c).
The axial width W2 of the narrow groove 3 is configured to be shorter than the axial width W1 of the half member 2, as shown in FIG. 5 (c).

次に、段差部4の詳細な構成について図5を用いて説明する。   Next, the detailed configuration of the stepped portion 4 will be described with reference to FIG.

段差部4の円周方向の長さは、図5(a)に示すように、細溝3の円周方向の長さlと同じ長さとなるように設けられている。
段差部4の内周面4cから細溝3の底面3cまでの半径方向の長さH3は、細溝3の半径方向の深さH2以下となるように形成されている。
本実施形態においては、段差部4の軸方向の幅W3の和は、半割部材2の軸方向の幅W1から細溝3の軸方向の幅W2を減算した長さである。
また、本実施形態においては、段差部4の軸方向の幅W3の和の、半割部材2の軸方向の幅W1に対する割合は、略70%となるように形成したものである。
このように構成することにより、フリクション低減効果及び漏れ油量低減効果を得ることができる。
The length in the circumferential direction of the step portion 4 is set to be the same as the length l in the circumferential direction of the narrow groove 3 as shown in FIG. 5A.
The radial length H3 from the inner circumferential surface 4c of the step portion 4 to the bottom surface 3c of the narrow groove 3 is formed to be equal to or less than the radial depth H2 of the narrow groove 3.
In the present embodiment, the sum of the axial width W3 of the stepped portion 4 is a length obtained by subtracting the axial width W2 of the narrow groove 3 from the axial width W1 of the half member 2.
Further, in the present embodiment, the ratio of the sum of the axial width W3 of the stepped portion 4 to the axial width W1 of the half member 2 is approximately 70%.
With such a configuration, it is possible to obtain a friction reduction effect and a leakage oil amount reduction effect.

なお、第一から第三の実施形態に係るすべり軸受においては、細溝を二本または一本で構成しているがこれに限定するものではなく、三本以上で構成することも可能である。   In the slide bearings according to the first to third embodiments, the narrow groove is formed by two or one, but the invention is not limited to this, and three or more can also be formed. .

以上のように、円筒を軸方向と平行に二分割した半割部材2を上下に配置したすべり軸受1であって、下側の半割部材2に、円周方向を長手方向とする細溝3を設け、細溝3の軸方向端面側の周縁部に、半割部材2の内周面よりも半径方向外側へ凹んだ段差部4を設け、段差部4の軸方向の幅W3の和が、0mm以上であって半割部材2の軸方向の幅W1から細溝3の軸方向の幅W2の和を減算した長さ以下となるように形成したものである。
このように構成することにより、油膜圧力の発生を妨げない程度の細溝3を設けることで、摺動面積を減らしつつ、フリクション低減効果を得ることができ、かつ、総和の流出油量を抑えることができる。また、細溝3の周縁部に段差部4を設けることで、油の吸い戻し量を多くするように調節することができる。
As mentioned above, it is the slide bearing 1 which has arranged the half member 2 which divided the cylinder into two in parallel with the axial direction up and down, and the narrow groove which makes the circumferential direction a longitudinal direction in the lower half member 2 3 is provided, and the step portion 4 recessed outward in the radial direction with respect to the inner peripheral surface of the half member 2 is provided on the peripheral edge portion on the axial end face side of the narrow groove 3; Is equal to or less than 0 mm and equal to or less than the sum of the axial width W2 of the narrow grooves 3 from the axial width W1 of the half member 2.
With such a configuration, by providing the narrow groove 3 that does not prevent the generation of the oil film pressure, it is possible to obtain the friction reduction effect while reducing the sliding area, and to suppress the total amount of oil outflow. be able to. Further, by providing the step 4 at the peripheral edge of the narrow groove 3, it is possible to adjust so as to increase the amount of oil suctioned back.

また、段差部4の軸方向の幅W3の和の、半割部材2の軸方向の幅W1に対する割合は、0%以上であって70%以下となるように形成したものである。
このように構成することにより、漏れ油量低減効果及びフリクション低減効果をより効果的に得ることができる。
The ratio of the sum of the axial width W3 of the step 4 to the axial width W1 of the half member 2 is 0% or more and 70% or less.
By configuring in this manner, it is possible to more effectively obtain the leakage oil amount reduction effect and the friction reduction effect.

1 すべり軸受
2 半割部材
2a 回転方向下流側合わせ面
2b 回転方向上流側合わせ面
3 細溝
3a 回転方向下流側端部
3b 回転方向上流側端部
4 段差部
4a 回転方向下流側端部
4b 回転方向上流側端部
11 クランクシャフト
DESCRIPTION OF SYMBOLS 1 slide bearing 2 half member 2a rotation direction downstream mating surface 2b rotation direction upstream mating surface 3 fine groove 3a rotation direction downstream end 3b rotation direction upstream end 4 stepped portion 4a rotation direction downstream end 4b rotation Upstream end 11 crankshaft

Claims (2)

円筒を軸方向と平行に二分割した半割部材を上下に配置したすべり軸受であって、
前記すべり軸受によって保持する軸の回転方向における上側の前記半割部材の下手側の端面と、下側の前記半割部材の前記軸の回転方向における上手側の端面との合わせ面の位置を0°と規定し、該0°の位置から前記軸の回転方向に対する反対方向への回転角度として軸受角度を規定する場合において、
下側の前記半割部材に、前記軸受角度が180°の位置から、前記軸受角度が180°より大きく270°以下の位置までの範囲のみにおいて、円周方向を長手方向とし、軸方向に並列する2本の細溝を設け、
前記細溝の軸方向端面側の周縁部に、前記細溝の底部よりも前記半割部材の半径方向内側へ突出するとともに、前記半割部材の内周面よりも半径方向外側へ凹んだ段差部を設け、
前記段差部の軸方向の幅の和が、0mmより大きく前記半割部材の軸方向の幅から細溝の軸方向の幅の和を減算した長さ以下となるように形成した
ことを特徴とするすべり軸受。
A slide bearing in which half members obtained by dividing a cylinder into two in parallel to the axial direction are disposed at the top and bottom,
The position of the mating surface of the end face on the lower side of the upper half of the half in the direction of rotation of the shaft held by the slide bearing and the end face on the upper side in the direction of rotation of the lower half of the half is 0 In the case where a bearing angle is defined as a rotation angle from the 0 ° position to the opposite direction to the rotation direction of the shaft,
Said half member of the lower, from a position before the SL bearing angle 180 °, the range only to the position of the bearing angle is greater than 180 ° 270 ° or less, the circumferential and longitudinal direction, in the axial direction Provide two parallel narrow grooves,
A step which protrudes inward in the radial direction of the half member from the bottom of the narrow groove and is recessed outward in the radial direction of the inner circumferential surface of the half member at the peripheral edge on the axial end face side of the narrow groove. Set up the
The sum of the axial widths of the stepped portions is greater than 0 mm and equal to or less than the length obtained by subtracting the sum of the axial widths of the narrow grooves from the axial width of the half member. Sliding bearings.
前記段差部の軸方向の幅の和の、前記半割部材の軸方向の幅に対する割合は、0%より大きく70%以下となるように形成した
ことを特徴とする請求項1に記載のすべり軸受。
The slip according to claim 1, wherein the ratio of the sum of the axial width of the step portion to the axial width of the half member is greater than 0% and not more than 70%. bearing.
JP2014077358A 2014-04-03 2014-04-03 Slide bearing Active JP6541144B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014077358A JP6541144B2 (en) 2014-04-03 2014-04-03 Slide bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014077358A JP6541144B2 (en) 2014-04-03 2014-04-03 Slide bearing

Publications (2)

Publication Number Publication Date
JP2015197214A JP2015197214A (en) 2015-11-09
JP6541144B2 true JP6541144B2 (en) 2019-07-10

Family

ID=54547028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014077358A Active JP6541144B2 (en) 2014-04-03 2014-04-03 Slide bearing

Country Status (1)

Country Link
JP (1) JP6541144B2 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55135223A (en) * 1979-04-05 1980-10-21 Toyota Motor Corp Connecting rod bearing
FR2533274A1 (en) * 1982-09-16 1984-03-23 Coussinets Ste Indle METHOD FOR REDUCING THE ENERGY CONSUMPTION OF BEARINGS
JPH04114117U (en) * 1991-03-26 1992-10-07 エヌデーシー株式会社 half bearing
GB0010542D0 (en) * 2000-05-03 2000-06-21 Dana Corp Bearings
JP3623737B2 (en) * 2000-12-25 2005-02-23 大同メタル工業株式会社 Half bearing
JP2007225079A (en) * 2006-02-27 2007-09-06 Daido Metal Co Ltd Sliding bearing for diagonal split type connecting rod
GB201002309D0 (en) * 2010-02-11 2010-03-31 Mahle Int Gmbh Bearing
JP5048805B2 (en) * 2010-03-31 2012-10-17 大同メタル工業株式会社 Sliding bearings for internal combustion engines
JP5895638B2 (en) * 2012-03-21 2016-03-30 大豊工業株式会社 Plain bearing

Also Published As

Publication number Publication date
JP2015197214A (en) 2015-11-09

Similar Documents

Publication Publication Date Title
JP6096689B2 (en) Plain bearing
JP5837896B2 (en) Plain bearing
JP6185853B2 (en) Plain bearing
JP6134636B2 (en) Plain bearing
JP6536774B2 (en) Slide bearing
JP2016161016A (en) Manufacturing method of slide bearing, and slide bearing
JP6541144B2 (en) Slide bearing
JP6216226B2 (en) Plain bearing
JP6323833B2 (en) Plain bearing
JP6314103B2 (en) Plain bearing
JP2016161018A5 (en)
JP6390852B2 (en) Plain bearing
JP6399576B2 (en) Plain bearing
JP2019031981A (en) Slide bearing
JP6624559B2 (en) Plain bearing
WO2016136993A1 (en) Sliding bearing
JP6166064B2 (en) Plain bearing
JP6724280B2 (en) Plain bearing
JP2017110765A (en) Slide bearing
JP2017110764A (en) Slide bearing
JP2016161014A (en) Manufacturing method of slide bearing, and slide bearing
JP2016161011A (en) Slide bearing

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20170126

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20171019

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20171024

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20171219

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180515

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20190108

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190306

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20190514

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190605

R150 Certificate of patent or registration of utility model

Ref document number: 6541144

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250