WO2011091573A1 - 一种发动机的连杆结构 - Google Patents

一种发动机的连杆结构 Download PDF

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Publication number
WO2011091573A1
WO2011091573A1 PCT/CN2010/001872 CN2010001872W WO2011091573A1 WO 2011091573 A1 WO2011091573 A1 WO 2011091573A1 CN 2010001872 W CN2010001872 W CN 2010001872W WO 2011091573 A1 WO2011091573 A1 WO 2011091573A1
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Prior art keywords
connecting rod
positioning pin
cover
opened
bolt
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PCT/CN2010/001872
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English (en)
French (fr)
Inventor
肖亨琳
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无锡开普动力有限公司
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Publication of WO2011091573A1 publication Critical patent/WO2011091573A1/zh

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Classifications

    • 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
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/04—Connecting-rod bearings; Attachments thereof
    • 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
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like

Definitions

  • the present invention relates to an engine accessory, and more particularly to a link structure of an engine.
  • An object of the present invention is to overcome the deficiencies in the prior art and to provide a link structure of an engine which is uniform in force, high in strength, short in development cycle, and easy to process.
  • the connecting rod structure of the engine includes a connecting rod body and a connecting rod cover, and a connecting rod small head is integrally connected at a rear end portion of the connecting rod body, and a connecting rod small head is provided therein.
  • the rod bushing, the front end portion of the connecting rod body is integrally connected with a connecting rod big head, the connecting rod lower roof is fixedly fixed on the connecting rod big head, and the connecting rod upper tile is fixedly mounted on the connecting rod cover, the connecting rod upper tile and the connecting rod lowering tile
  • the upper positioning pin hole is opened at the left side position and the right side position of the lower end surface of the connecting rod cover, and the lower positioning pin hole is opened at the left side position and the right side position of the upper end surface of the connecting rod big end.
  • a positioning pin is inserted into the upper positioning pin hole and the lower positioning pin hole, and two upper bolt holes are opened at the left side of the connecting rod cover and the right side of the connecting rod cover, and the connecting rod is large There are two lower bolt holes on the left side of the connecting rod and the right side of the big end of the connecting rod, and the connecting bolts are screwed into the corresponding bolt holes and the lower bolt holes on the same side.
  • the pin hole is opened between the corresponding upper bolt holes, and the lower positioning pin hole is opened correspondingly Between the bolt holes. '
  • the ratio of the diameter of the connecting rod bolt to the diameter of the cylinder is 0.075 to 0.089.
  • the lateral shape of the connecting rod cover is arcuate.
  • the transverse shape of the large end of the connecting rod is an arc shape.
  • the plane of the axes of the two upper positioning pin holes is perpendicular to the lower end surface of the link cover.
  • the plane of the axis of the two lower positioning pin holes is perpendicular to the upper end surface of the large end of the connecting rod.
  • the invention has the advantages of simple structure, compactness and reasonableness; the piston connecting rod can be changed without changing the engine In the case of the movement track in the crankcase, only by changing the size and number of the connecting rod bolts, changing the transverse dimension of the large end of the connecting rod without changing the thickness of the large end of the connecting rod, by processing the threaded hole on the connecting rod body, directly using the connecting rod bolt Locking the connecting rod body and the connecting rod cover, eliminating the connecting rod nut, can be improved on the basis of the original flat cutting model, the connecting rod is evenly stressed, and the strength of the connecting rod is calculated and analyzed compared with the strength of the connecting rod of the two bolts. High, short burst period, easy to process.
  • Figure 1 is a schematic view showing the overall structure of the present invention.
  • Figure 2 is a cross-sectional view of the assembly of the present invention on a body.
  • Figure 3 is a plan view of the link body and its accessories in the present invention.
  • Figure 4 is a plan view of the link cover and its accessories in the present invention.
  • Fig. 5 is a schematic view showing the structure of an engine connecting rod in the prior art.
  • the invention mainly consists of a connecting rod body 1, a connecting rod small head 1.1, a connecting rod bushing 1.2, a connecting rod big head 1.3, a connecting rod lowering 1.4, a lower positioning pin hole 1.5, a lower bolt hole 1.6,
  • the connecting rod cover 2, the connecting rod upper plate 2.1, the upper positioning pin hole 2.2, the upper bolt hole 2.3, the positioning pin 3 and the connecting rod bolt 4 and the like are formed.
  • the connecting rod structure of the engine comprises a connecting rod body 1 and a connecting rod cover 2, a connecting rod small head U is integrally connected at a rear end portion of the connecting rod body 1, and a connecting rod bushing 1.2 is arranged in the connecting rod small head 1.1.
  • the front end of the connecting rod body 1 is integrally connected with a connecting rod big head 1.3
  • the connecting rod big head 1.3 is fixedly mounted with a connecting rod lowering bush 1.4
  • the connecting rod cover 2 is fixedly mounted with a connecting rod upper shingl 2.1
  • the lower rod 1.4 is used in combination, and the upper positioning pin hole 2.2 is opened at the left side position and the right side position of the lower end surface of the connecting rod cover 2, and the left side position and the right side position of the upper end surface of the connecting rod large head 1.3 are provided.
  • the lower positioning pin hole 1.5 is provided in the upper opening, and the positioning pin 3 is inserted in the upper positioning pin hole 2.2 and the lower positioning pin hole 1.5, and the position of the left side of the connecting rod cover 2 and the right side of the connecting rod cover 2
  • a bolt bolt 4 is screwed into the bolt hole 2.3 and the lower bolt hole 1.6, and the upper positioning pin hole 2.2 is opened in the pair Between the upper bolt holes 2.3 and the lower positioning pin holes 1.6 ⁇ between the corresponding lower bolt holes 1.6.
  • the ratio of the diameter of the connecting rod bolt 4 to the cylinder diameter is 0.075 to 0.089.
  • the lateral shape of the link cover 2 is an arc shape.
  • the lateral shape of the connecting rod head 1.3 is an arc shape.
  • the plane of the axes of the two upper positioning pin holes 2.2 is perpendicular to the lower end surface of the link cover 2.
  • the plane of the axes of the two lower positioning pin holes 1.5 is perpendicular to the upper end surface of the large end of the connecting rod 1.3.
  • Two upper bolt holes 2.3 are provided at the left side portion of the link cover 2 and the right side portion of the link cover 2, and the left side portion of the connecting rod head 1.3 and the right side portion of the connecting rod head 1.3
  • Two lower bolt holes 1.6 are opened in the position, because the diameter of the connecting rod bolt 4 becomes smaller, so that the distance from the center of the lower bolt hole 1.6 to the center of the connecting rod lower tile 1.4 is reduced, the upper end surface of the connecting rod cover 2 and the connecting rod cover 2 The distance between the lower end faces remains unchanged.
  • the flange thickness of the connecting rod bolts 4 is not greater than the thickness of the original nut flanges, so that the movement path of the connecting rods in the machine body is not increased, the connecting rod cover 2 and the connecting rods
  • the thickness of the large head 1.3 remains unchanged.
  • Two upper bolt holes 2.3 are provided at the left side portion of the link cover 2 and the right side portion of the link cover 2, and the left side portion of the connecting rod head 1.3 and the right side portion of the connecting rod head 1.3
  • Two lower bolt holes 1.6 are opened in the position, and corresponding positioning pin holes are opened at the position of the connecting rod cover 2 and the connecting rod head 1.3 avoiding the respective bolt holes, and the upper bolt holes 2.3 and the lower bolt holes are opened.
  • the connecting rod body 1, and the connecting rod cover 2 When assembling the piston, the connecting rod body 1, and the connecting rod cover 2, the cylinder is first set into the body, and the connecting rod bushing 1.2 is press-fitted in the 1.1-hole of the connecting rod small body of the connecting rod body 1, and the connecting rod upper bush 2.1 is installed.
  • the connecting rod lower bushing 1.4 On the connecting rod cover 2, the connecting rod lower bushing 1.4 is mounted on the connecting rod head 1.3, the connecting rod small head 1.1 is connected with the piston 5 through the piston pin, the piston ring set 6 is set on the piston 5, and the piston connecting rod body is further 1
  • the tool body is attached to the cylinder liner with a special tool, and the link body 1 and the link cover 2 are locked to the crank pin of the crankshaft 7 by the connecting rod bolts 4.

Description

一种发动机的连杆结构 技术领域
本发明涉及一种发动机附件， 尤其是一种发动机的连杆结构。
背景技术
目前，据统计当直列发动机连杆大头孔直径与气缸直径之比大于 0.73时， 釆用平切口的连杆， 则连杆大头横向尺寸就会比气缸直径大， 这样在将活塞 连杆装配到发动机上时必须先要将活塞连杆装在气缸套内再和气缸套一起装 到气缸体内， 从发动机上拆下活塞连杆时则要将气缸套和活塞连杆一起从机 体内拉出，使得活塞连杆的拆装工艺繁琐复杂，整机维修费时费力增加成本。 当然， 这种发动机也可以采用斜切口的连杆， 但斜切口的连杆体连杆盖定位 复杂， 加工不便， 连杆的刚性较差， 制造成本较高。
发明内容
本发明的目的是克服现有技术中存在的不足， 提供一种受力均匀， 强度 高、 开发周期短， 加工容易的发动机的连杆结构。
按照本发明提供的玟术方案， 所述发动机的连杆结构， 包括连杆体与连 杆盖， 在连杆体的后端部一体连接有连杆小头， 连杆小头内设有连杆衬套， 连杆体的前端部一体连接有连杆大头， 连杆大头上固定安装有连杆下瓦， 连 杆盖上固定安装有连杆上瓦， 连杆上瓦与连杆下瓦配合使用， 在连杆盖下端 面的左侧部位置与右侧部位置上开设有上定位销孔， 在连杆大头上端面的左 侧部位置与右侧部位置上开设有下定位销孔， 在上定位销孔与下定位销孔内 插接有定位销， 在连杆盖的左侧部位置与连杆盖的右侧部位置上均开设有两 个上螺栓孔， 在连杆大头的左侧部位置与连杆大头的右侧部位置上均开设有 两个下螺栓孔， 在相同一侧的对应上螺栓孔与下螺栓孔内螺接有连杆螺栓， 所_述上定位销孔开设在对应的上螺栓孔之间， 下定位销孔开设在对应的下螺 栓孔之间。 '
所述连杆螺栓直径与气缸直径之比为 0.075〜0.089。
- 所述连杆盖的横向外形为圆弧状。
所述连杆大头的横向外形为圆弧状。
两个上定位销孔的轴线所在平面与连杆盖的下端面垂直设置。
两个下定位销孔的轴线所在平面与连杆大头的上端面垂直设置。
本发明结构简单、 紧凑， 合理； 可以在不改变发动机已有活塞连杆在机 体曲轴箱内运动轨迹的情况下， 只通过改变连杆螺栓大小和个数， 改变连杆 大头横向尺寸而不改变连杆大头厚度， 通过在连杆体上加工螺纹孔， 用连杆 螺栓直接锁紧连杆体和连杆盖， 省去了连杆螺母， 在原有平切口模型的基础 上改进就可实现， 连杆受力均匀， 连杆强度经计算分析比两个螺栓的连杆强 度高， 幵发周期短， 加工容易。
附图说明
图 1是本发明的整体结构示意图。
图 2为本发明在机体上装配的横剖视图。
图 3是本发明中的连杆体及其附件的俯视图。
图 4是本发明中的连杆盖及其附件的俯视图。
图 5是现有技术中发动机连杆的结构示意图。
具体实施方式
下面结合具体附图和实施例对本发明作进一步说明。
如图所示， 本发明主要由连杆体 1、 连杆小头 1.1、 连杆衬套 1.2、 连杆 大头 1 .3、 连杆下瓦 1.4、 下定位销孔 1.5、 下螺栓孔 1.6、 连杆盖 2、 连杆上 瓦 2. 1、 上定位销孔 2.2、 上螺栓孔 2.3、 定位销 3与连杆螺栓 4等部件构成。
该发动机的连杆结构， 包括连杆体 1与连杆盖 2， 在连杆体 1的后端部 一体连接有连杆小头 U， 连杆小头 1.1 内设有连杆衬套 1.2， 连杆体 1的前 端部一体连接有连杆大头 1.3， 连杆大头 1.3上固定安装有连杆下瓦 1.4， 连 杆盖 2上固定安装有连杆上瓦 2.1， 连杆上瓦 2.1与连杆下瓦 1.4配合使用， 在连杆盖 2下端面的左侧部位置与右侧部位置上开设有上定位销孔 2.2， 在 连杆大头 1.3上端面的左侧部位置与右侧部位置上开设有下定位销孔 1.5，在 上定位销孔 2.2与下定位销孔 1.5内插接有定位销 3，在连杆盖 2的左侧部位 置与连杆盖 2的右侧部位置上均开设有两个上螺栓孔 2.3，在连杆大头' 1.3的 左侧部位置与连杆大头 1.3的右侧部位置上均开设有两个下螺栓孔 1.6，在相 同一侧 j的对应上螺栓孔 2.3与下螺栓孔 1.6内螺接有连杆螺栓 4，所述上定位 销孔 2.2开设在对应的上螺栓孔 2.3之间，下定位销孔 1.6幵设在对应的下螺 栓孔 1 .6之间。
所述连杆螺栓 4直径与气缸直径之比为 0.075~0.089。
所述连杆盖 2的横向外形为圆弧状。
所述连杆大头 1.3的横向外形为圆弧状。
两个上定位销孔 2.2的轴线所在平面与连杆盖 2的下端面垂直设置。 两个下定位销孔 1.5的轴线所在平面与连杆大头 1.3的上端面垂直设置。 在连杆盖 2的左侧部位置与连杆盖 2的右侧部位置上均开设有两个上螺 栓孔 2.3， 在连杆大头 1.3的左侧部位置与连杆大头 1.3的右侧部位置上均开 设有两个下螺栓孔 1.6， 因连杆螺栓 4直径变小， 使得下螺栓孔 1.6中心到连 杆下瓦 1.4的中心的距离减小， 连杆盖 2上端面、 连杆盖 2下端面之间的距 离保持不变， 连杆螺栓 4的法兰厚度不大于原机螺母法兰厚度， 从而保证连 杆在机体内的运动轨迹不会增大， 连杆盖 2、 连杆大头 1.3的厚度保持不变。
在连杆盖 2的左侧部位置与连杆盖 2的右侧部位置上均开设有两个上螺 栓孔 2.3， 在连杆大头 1.3的左侧部位置与连杆大头 1.3的右侧部位置上均开 设有两个下螺栓孔 1.6，在连杆盖 2与连杆大头 1.3的上避开各自的螺栓孔的 地方开设有对应的定位销孔， 通过在上螺栓孔 2.3 与下螺栓孔 1.6 内安装定 位销 3来定位连杆体 1和连杆盖 2， 因下螺栓孔 1.6的中心到连杆下瓦 1.4中 心的距离减小， 使得连杆横向外形小于缸套内径， 在保证连杆强度的前提下 可以将连杆盖 2的横向外形、 连杆大头 1.3的横向外形做成圆弧状， 加工容 易， 装配时不易损伤到气缸套。
当装配活塞、 连杆体 1、 连杆盖 2时， 先将气缸套装到机体内， 连杆衬 套 1.2压装在连杆体 1的连杆小头 1.1孔内，连杆上瓦 2.1安装在连杆盖 2上， 连杆下瓦 1.4安装在连杆大头 1.3上，连杆小头 1.1通过活塞销与活塞 5连接， 将活塞环组 6套到活塞 5上， 再将活塞连杆体 1用专用工具装到气缸套内， 用连杆螺栓 4将连杆体 1和连杆盖 2锁紧到曲轴 7的曲柄销上。 拆活塞、 连 杆体 1、 连杆盖 2时则松开连杆螺栓 4， 从机体下端拆下连杆盖 2， 再将连杆 体 1和活塞从气缸套内推出。 这样就实现了直列发动机当连杆大头孔直径与 气缸直径之比大于 0.73时， 用平切口连杆也可以从气缸套内装拆的工艺。

Claims

权 利 要 求 书
1、 一种发动机的连杆结构， 包括连杆体 （1) 与连杆盖 （2)， 在连杆体 (1) 的后端部一体连接有连杆小头 （1.1)， 连杆小头 （1.1) 内设有连杆衬 套（1.2)， 连杆体（1) 的前端部一体连接有连杆大头（1.3)， 连杆大头（1.3) 上固定安装有连杆下瓦 （1.4)， 连杆盖 （2) 上固定安装有连杆上瓦 （2.1)， 连杆上瓦 （2.1) 与连杆下瓦 （1.4) 配合使用， 在连杆盖 （2) 下端面的左侧 部位置与右侧部位置上开设有上定位销孔 （2.2)， 在连杆大头 （1.3) 上端面 的左侧部位置与右侧部位置上开设有下定位销孔（1.5)， 在上定位销孔（2.2) 与下定位销孔 （1.5) 内插接有定位销 （3)， 其特征是： 所述连杆盖 （2) 的 左侧部位置与连杆盖 （2) 的右侧部位置上均开设有两个上螺栓孔 （2.3)， 在 连杆大头 （1.3) 的左侧部位置与连杆大头 （1.3) 的右侧部位置上均开设有 两个下螺栓孔 （1.6)， 在相同一侧的对应上螺栓孔 （2.3) 与下螺栓孔 （1.6) 内螺接有连杆螺栓（4)，所述上定位销孔（2.2)开设在对应的上螺栓孔（2.3) 之间， 下定位销孔 （1.6) 开设在对应的下螺栓孔 （1.6) 之间。
2、如权利要求 1所述的发动机的连杆结构，其特征是：所述连杆螺栓（4) 直径与气缸直径之比为 0.075〜0.089。
3、 如权利要求 1所述的发动机的连杆结构， 其特征是： 所述连杆盖（2) 的横向外形为圆弧状。
4、 如权利要求 1 所述的发动机的连杆结构， 其特征是： 所述连杆大头 (1.3) 的横向外形为圆弧状。
5、 如权利要求 1所述的发动机的连杆结构， 其特征是： 两个上定位销孔 (2.2) 的轴线所在平面与连杆盖 （2) 的下端面垂直设置。
6、 如权利要求 1所述的发动机的连杆结构， 其特征是： 两个下定位销孔 (1.5) 的轴线所在平面与连杆大头 （1.3) 的上端面垂直设置。
PCT/CN2010/001872 2010-01-28 2010-11-22 一种发动机的连杆结构 WO2011091573A1 (zh)

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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DE112012001137B4 (de) * 2011-03-09 2022-07-14 Cummins Intellectual Property, Inc. Pleuel mit versetzten Aufsatzlöchern für eine Verbrennungskraftmaschine
CN102230463A (zh) * 2011-06-24 2011-11-02 大连三洋压缩机有限公司 活塞式压缩机用连杆组件
CN103498863A (zh) * 2013-09-30 2014-01-08 安瑞科(蚌埠)压缩机有限公司 一种螺栓直连的连杆
CN103727196B (zh) * 2014-01-16 2017-04-12 沈阳远大压缩机股份有限公司 完全平衡型曲轴传动装置及其压缩机
CN105840461B (zh) * 2016-05-20 2017-11-24 沈阳远大压缩机有限公司 平衡型曲轴传动装置
CN106246709A (zh) * 2016-08-18 2016-12-21 安徽天利动力股份有限公司 一种柴油机用连杆装置
US10578150B2 (en) * 2018-07-24 2020-03-03 GM Global Technology Operations LLC Combustion engine connecting rod
CN113008544B (zh) * 2021-04-07 2022-05-27 中国人民解放军陆军装甲兵学院 一种用于确定发动机连杆强度的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114961A (en) * 1974-05-16 1978-09-19 Rolls-Royce Motors Limited Bearings
JPH1142600A (ja) * 1997-07-28 1999-02-16 Riken Tanzou Kk コンロッドの破断分割装置
CN2754820Y (zh) * 2004-11-11 2006-02-01 长安汽车（集团）有限责任公司 发动机连杆定位结构
CN101865203A (zh) * 2010-01-28 2010-10-20 无锡开普动力有限公司 一种发动机的连杆结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114961A (en) * 1974-05-16 1978-09-19 Rolls-Royce Motors Limited Bearings
JPH1142600A (ja) * 1997-07-28 1999-02-16 Riken Tanzou Kk コンロッドの破断分割装置
CN2754820Y (zh) * 2004-11-11 2006-02-01 长安汽车（集团）有限责任公司 发动机连杆定位结构
CN101865203A (zh) * 2010-01-28 2010-10-20 无锡开普动力有限公司 一种发动机的连杆结构

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