WO2014187085A1 - 汽车转向中间摇臂总成 - Google Patents

汽车转向中间摇臂总成 Download PDF

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Publication number
WO2014187085A1
WO2014187085A1 PCT/CN2013/087297 CN2013087297W WO2014187085A1 WO 2014187085 A1 WO2014187085 A1 WO 2014187085A1 CN 2013087297 W CN2013087297 W CN 2013087297W WO 2014187085 A1 WO2014187085 A1 WO 2014187085A1
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WIPO (PCT)
Prior art keywords
rocker arm
groove
steering intermediate
automobile steering
hole
Prior art date
Application number
PCT/CN2013/087297
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English (en)
French (fr)
Inventor
晁鹏翔
高晓东
马生平
Original Assignee
陕西重型汽车有限公司
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Application filed by 陕西重型汽车有限公司 filed Critical 陕西重型汽车有限公司
Publication of WO2014187085A1 publication Critical patent/WO2014187085A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D7/00Steering linkage; Stub axles or their mountings
    • B62D7/16Arrangement of linkage connections

Definitions

  • the invention relates to a rocker arm structure, in particular to an automobile steering intermediate rocker arm assembly. Background technique
  • the existing steering intermediate rocker arm assembly comprises a rocker arm bracket, a rocker pin shaft and a rocker arm, and the piercing end of the pin shaft is sleeved on the village sleeve and passes through the installation through hole in the middle of the rocker arm, and then the end portion passes through The nut is locked.
  • the village is treated with a t-face, which is rust-proof and self-lubricating, and the cylindrical surface of the village is machined with a threaded groove, which serves to store grease and passage.
  • There is a certain gap in the axial space formed by the pin and the pad to ensure that the rocker arm will not be tightened, so that it can be flexibly rotated.
  • the middle rocker arm assembly of this structure since there is no sealing mechanism between the village sleeve and the ⁇ , after a long period of work, the total lubricating grease of the village sleeve easily flows out from the gap between the pin shaft and the pin shaft, and needs to be periodically performed.
  • the present invention aims to provide a vehicle steering intermediate assembly with a sealing structure, which avoids problems such as loss of grease, oxidation, and impurities in the village, reducing maintenance costs and increasing the maintenance cost. life.
  • the car is turned to the middle ⁇ assembly, including the pin shaft, the ⁇ bracket, The rocker arm, the village sleeve and the nut, after the pin shaft passes through the through hole in the middle of the rocker arm bracket and the rocker arm in turn, the end portion is tightened by the nut, and the village sleeve is provided between the pin shaft and the ⁇
  • the special The end cover and the two sealing jaws are respectively provided with grooves on both ends of the inner wall of the middle through hole, and each groove is provided with a sealing ⁇ , and the village sleeve is disposed between the two grooves, the end cover
  • the inner cavity is provided with a thread, the end cap being screwed to the end of the rocker pin
  • the sealing weir has a wire diameter greater than a depth of the groove.
  • the sealing cymbal has a wire diameter of 2 to 8 ⁇ , and the sealing cymbal has an inner diameter of 20 to 100 ⁇ ; the groove has a depth of 2 to 8 ⁇ , and the groove has a width of 3 to 18 ⁇ . 1 ⁇
  • the width of the groove is 7. 1 ⁇ .
  • the width of the groove is 7. 1 ⁇ .
  • a pad is disposed between the pin and the nut, and the outer flange of the pad abuts the end cover.
  • the sealing jaw is made of nitrile rubber; the nut is a self-locking nut.
  • the invention has the beneficial effects of: the maintenance-free steering intermediate rocker arm assembly of the invention, the village sleeve is surface-treated, capable of rust-proof and self-lubricating, and the cylindrical surface of the village sleeve is processed with a spiral groove, the groove In the grease storage and the passage of the text, two grooves are formed in the inner wall of the ⁇ , and two gaskets are arranged in the groove to avoid problems such as oxidation of the grease and contamination of impurities.
  • the gap between the village sleeve and the pin shaft is
  • 1 is a schematic cross-sectional structural view of a vehicle steering intermediate rocker arm assembly of the present invention
  • 2 is a schematic exploded view of the automobile steering intermediate rocker arm assembly of the present invention.
  • a maintenance-free vehicle steering intermediate assembly of the present invention enables the vehicle to be maintenance-free under normal use conditions, thereby achieving maintenance-free and cost-effective advantages.
  • the steering intermediate rocker arm assembly is not limited to the steering intermediate rocker arm assembly, and the structure is suitable for rocker arm assemblies for other purposes. It comprises a pin 1, a rocker bracket 2, a rocker arm 5, two symmetrically disposed village sleeves 4, two sealing jaws 3, 3, a nut 7, an end cap 8 and a grease added during assembly.
  • Two grooves 51, 51' are respectively disposed at two ends of the inner wall of the intermediate through hole of 5, and each of the grooves is provided with a sealing ⁇ , and the village sleeve 4 is disposed between the two grooves, and the inside of the end cover 8
  • the cavity is threaded and the end cap is threadedly coupled to the end of the rocker pin 1 and extends into the intermediate through hole of the rocker arm 5, the outer wall of the end cap blocking a groove in the inner wall of the intermediate through hole.
  • a pad 6 is further disposed between the pin shaft and the nut 7, and the outer flange of the pad 6 abuts against the end cap 8.
  • the rocker arm 5 can be easily rotated on the rocker pin 1, and the grease in the groove acts as a lubricant during the rotation. Sealing the cavity in the hole through the end cap 8 ensures a good environment for the grease to be used.
  • the wire diameter of the sealing jaw is greater than the depth of the groove Degree, so that the sealing ⁇ arranged in the groove is tightly between the pin and the ⁇ , to avoid the overflow of lubricating oil on the village.
  • the sealing jaw has a wire diameter of 2 to 8 inches, and the sealing jaw has an inner diameter of 20 to 100 inches.
  • the depth of the trench is 2 ⁇ 8 ⁇ , and the width of the trench is 3 ⁇ 18 ⁇ .
  • the width of the groove is 7. 1 ⁇ .
  • the width of the groove is 7. 1 ⁇ .
  • the sealing jaw is made of nitrile rubber and can also be made of other oil-resistant, temperature-resistant, corrosion-resistant rubber and other sealing materials.
  • the nut is a self-locking nut to ensure that loosening does not occur under vibration and the like.
  • the interference fit between the pin shaft and the bracket ensures a stable connection between the pin shaft and the bracket.
  • the clearance between the village sleeve and the pin shaft ensures that there is a certain gap in the axial space formed by the pin shaft and the pad to ensure that the rocker arm is not tightened, thereby being able to flexibly rotate.
  • the end cap 8 since the end cap 8 is threadedly mounted on the end of the rocker pin shaft, the end cap seals the inside of the rocker arm hole into a cavity, which ensures the working environment of the grease.
  • the maintenance-free steering intermediate rocker arm assembly, the interference fit between the rocker pin shaft and the rocker arm bracket, the rocker arm and the rocker pin shaft and the end cover are clearance fit, and the design of the gap ensures the type 0
  • the sealing effect of the sealing jaw The maintenance-free steering intermediate assembly, the village cover is treated with t-face, can be rust-proof and self-lubricating, and the cylindrical surface of the village sleeve is processed with a spiral groove, which acts as a grease storage and passage.
  • the gap between the village sleeve and the pin shaft is matched. ⁇ There is a certain gap in the axial space formed by the pin shaft and the pad to ensure that the rocker arm will not be tightened, so that it can be flexibly rotated.
  • the self-locking nut presses the pad, and the self-locking nut has a self-locking action, and does not loosen under vibration or the like.
  • the end cap is threaded, and the end cap seals the inside of the hole into a cavity, which ensures the working environment of the grease.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Steering Controls (AREA)

Abstract

一种带密封结构的汽车转向中间摇臂总成,包括摇臂销轴(1)、摇臂支架(2)、摇臂(5)、衬套(4)和螺母(7),摇臂销轴(1)依次穿过摇臂支架(2)和摇臂(5)中间的通孔之后,端部通过螺母(7)打紧,摇臂销轴(1)和摇臂(5)之间设有衬套(4),还包括端盖(8)和两个密封圈,在摇臂(5)的中间通孔内壁的两端分别设有沟槽(51,51'),每个沟槽(51,51')内设有一个密封圈,该端盖(8)与摇臂销轴(1)端部螺紋连接并且伸入到摇臂(5)的中间通孔中,端盖(8)外壁挡住中间通孔内壁上的一个沟槽(51')。该汽车转向中间摇臂总成可以避免衬套中的润滑脂流失、氧化、混入杂质等问题,增加了使用寿命。

Description

汽车转向中间摇臂总成
技术领域
本发明涉及一种摇臂结构, 特别涉及一种汽车转向中间摇臂总成。 背景技术
复杂多变的车辆使用环境对车辆的可靠耐久提出了越来越高的要求。 对于汽 车, 尤其是重卡的转向传动系统而言, 经过多年的发展, 转向直 干的球销头从原 来的加润滑脂的维护结构变成了现在的免维护结构, 降低了维修成本, 保证了车辆 的出勤率。 然而用于连 4妻转向器和 干之间的转向中间 ^仍一直采用通过润滑脂 嘴定期打润滑脂的维护方式。 具体的, 现有的转向中间摇臂总成包括摇臂支架, 摇 臂销轴和摇臂, 销轴的穿出端套上村套后穿过摇臂中间的安装通孔, 之后其端 部通过螺母锁紧。 通常, 该村套通t 面处理, 能够防锈、 自润滑, 且村套的圓柱 面上加工有螺走沟槽, 该沟槽起到了储存润滑脂和通道作用。 ^在 ^销轴及垫 圏形成的轴向空间内有一定间隙,保证摇臂不会被加紧,从而能够灵活转动。然而, 该种结构的中间摇臂总成, 由于村套与 ^之间没有密封机构, 长期工作后, 村套 总的润滑油脂容易从 ^与 ^销轴之间的缝隙中流出, 需要定期进行保养, 不但 费时费力, 且维护成本较高。 如果维护保养不及时, 由于重卡的工作环境恶劣, 长 时间^ ΐ]使得灰尘^ , 增加磨损部件, 导致寿命减短。 此外, 该 ^销轴的穿出端部与螺母锁紧形式为: 同时在 ^销轴和螺母的径 向打孔, 之后通过卡销固定, 不但费时费力而 易产生松动。 发明内容
针对现有技术中的不足, 本发明旨在提供一种带密封结构的汽车转向中间 ^ 总成, 避免了村套中的润滑脂流失、 氧化、 混入杂质等问题, 减少了维护成本, 增 加了 寿命。 为了解决上述问题, 该种汽车转向中间 ^总成, 包括 销轴、 ^支架、 摇臂、 村套和螺母, 销轴依次穿过摇臂支架和摇臂中间的通孔之后, 端部通过 螺母打紧, ^销轴与 ^之间设有村套,其特^ ^于还包括: 端盖和两个密封圏, 在 ^的中间通孔内壁的两端分别设有沟槽, 每个沟槽内设有一个密封圏, 村套设 在两个沟槽之间, 端盖的内腔设有螺纹, 该端盖与摇臂销轴端部螺紋连接并且伸入 到摇臂的中间通孔中, 端盖外壁挡住中间通孔内壁上的一个沟槽。 优选地, 所述密封圏的线径大于所述沟槽的深度。 优选地, 所述密封圏的线径为 2 ~ 8匪, 密封圏的内径为 20 ~ 100匪; 所述沟槽 的深度为 2 ~ 8匪, 沟槽的宽度为 3 ~ 18匪。 优选地, 所述密封圏的线径为 5. 3匪, 密封圏的内径为 60匪; 所述沟槽的深度 为 4. 6匪, 沟槽的宽度为 7. 1匪。 优选地, 所述 销轴与螺母之间设有垫圏, 该垫圏的外圏法兰与所述端盖抵 接。 所述密封圏由丁腈橡胶制成; 所述螺母为自锁螺母。 所述 销轴与 ^支架 之间过盈配合; 所述村套与 ^销轴之间间隙配合。 本发明的有益效果是: 本发明的免维护的转向中间摇臂总成, 村套通过表面处 理, 能够防锈、 自润滑, 且村套的圓柱面上加工有螺旋沟槽, 该沟槽起到了润滑脂 储存和 ^文的通道作用,在 ^内壁开设两个沟槽,并在沟槽内设置两个密封垫圏, 避免了润滑脂的氧化、 混入杂质等问题。 村套与 销轴之间间隙配合。 ^在摇 臂销轴及垫圏形成的轴向空间内有一定间隙, 保证摇臂不会被加紧, 从而能够灵活 转动。 此外, 该免维护的转向中间摇臂总成中, 自锁螺母将垫圏压紧, 且自锁螺母 有自锁作用, 在震动等情况下不会发生松脱的现象。 端盖通过螺紋安装, 端盖将摇 臂孔的内部密封为一个腔体, 保证了润滑脂的工作环境。 附图说明
图 1为本发明的汽车转向中间摇臂总成的剖面结构示意图; 图 2为本发明的汽车转向中间摇臂总成的分解结构示意图。 实^ Γ式
下面结合附图对本发明做进一步地说明。 结合图 1和图 2 , 本发明的一种免维护的汽车转向中间 ^总成, 使车辆在正 常使用情况下, 转向中间摇臂能够实现免维护, 从而带来减少维护成本和使用成本 的优点。 该转向中间摇臂总成, 不限于转向中间摇臂总成, 该结构适用于其他用途 的摇臂总成。 其包括 销轴 1、 摇臂支架 2、 摇臂 5、 两个对称设置的村套 4、 两个密封圏 3 , 3,、 螺母 7、 端盖 8及装配时加入的润滑脂。 摇臂销轴 1依次穿过摇臂支架 2和 5中间的通孔之后, 端部通过螺母 7打紧, 销轴 1与 ^支架 2之间通过 过盈配合连接, 销轴与 ^ 5之间设有村套 4 ,村套与 销轴之间间隙配合。 在 5的中间通孔内壁的两端分别设有两个沟槽 51 , 51' , 每个沟槽内设有一个 密封圏, 村套 4设在两个沟槽之间, 端盖 8的内腔设有螺纹, 该端盖与摇臂销轴 1 端部螺紋连接并且伸入到摇臂 5的中间通孔中, 端盖外壁挡住中间通孔内壁上的一 个沟槽。 为了起到更好的密封作用, 所述 ^销轴与螺母 7之间还设有垫圏 6 , 该 垫圏 6的外圏法兰与端盖 8抵接。 装配时, 将两个村套 4对装, 在 5中间形成了一道沟槽, 村套 4内侧圓柱 面上有螺旋槽,与上述中间沟槽联通,村套 4装配后在沟槽和螺旋槽中涂抹润滑脂。 在 ^ 5孔内的两侧沟槽内, 如图 1所示, 安装 0型密封圏。 ^ 5安^^ ^支 架上, 村套 4的端面接触摇臂销轴 1的轴肩, 垫圏 6安装在图 1所示的摇臂销轴 1 的另一个轴肩上, 通过自锁螺母 7打紧。 摇臂 5能够容易的在摇臂销轴 1上转动, 在转动的过程中, 沟槽内的润滑脂起到润滑作用。 通过端盖 8将 孔内的 腔体密封, 保证了润滑脂良好的使用环境。 为了保证摇臂与摇臂销轴之间的密封性, 该密封圏的线径大于所述沟槽的深 度, 使得设置在沟槽内的密封圏时刻紧 ¾ ^销轴与 ^之间, 避免村套上的润滑油 外溢。 优选地, 所述密封圏的线径为 2 ~ 8匪, 密封圏的内径为 20 ~ 100匪。 所述沟 槽的深度为 2 ~ 8匪,沟槽的宽度为 3 ~ 18匪。更优选地,所述密封圏的线径为 5. 3匪, 密封圏的内径为 60匪, 所述沟槽的深度为 4. 6匪, 沟槽的宽度为 7. 1匪。 所述密封圏由丁腈橡胶制成, 也可由其他耐油、 耐温、 耐腐蚀的橡胶及其他密 封材料制成。 所述螺母为自锁螺母, 保证在震动等情况下不会发生松脱的现象。 所 述 ^销轴与 ^支架之间过盈配合, 保证 销轴与 ^支架之间稳固连接。 所 述村套与 ^销轴之间间隙配合, 保证 ^在 ^销轴及垫圏形成的轴向空间内有 一定间隙, 保证摇臂不会被加紧, 从而能够灵活转动。 此外, 由于端盖 8通过螺纹 安装在摇臂销轴端部上, 端盖将摇臂孔的内部密封为一个腔体, 保证了润滑脂的工 作环境。 该免维护的转向中间摇臂总成, 摇臂销轴与摇臂支架之间过盈配合, 摇臂与摇 臂销轴及端盖为间隙配合,并且通过该间隙的设计,保证了 0型密封圏的密封作用。 该免维护的转向中间 ^总成, 村套通t 面处理, 能够防锈、 自润滑, 且村 套的圓柱面上加工有螺旋沟槽, 该沟槽起到了润滑脂储存和 的通道作用, 村套 与 ^销轴之间间隙配合。 ^在 ^销轴及垫圏形成的轴向空间内有一定间隙, 保证摇臂不会被加紧, 从而能够灵活转动。 该免维护的转向中间摇臂总成中, 自锁螺母将垫圏压紧, 且自锁螺母有自锁作 用, 在震动等情况下不会发生松脱的现象。 端盖通过螺紋安装, 端盖将 ^孔的内 部密封为一个腔体, 保证了润滑脂的工作环境。

Claims

权利 要求 书
1、 一种汽车转向中间摇臂总成, 包括摇臂销轴(1)、摇臂支架(2)、摇臂(5)、 村 套( 4 )和螺母 ( 7 ), 摇臂销轴( 1 )依次穿过摇臂支架( 2 )和摇臂 ( 5 ) 中间的通 孔之后, 端部通过螺母 ( 7 )打紧, 销轴与 ^ ( 5 )之间设有村套 ( 4 ), 其特 于还包括: 端盖(8)和两个密封圏 (3, 3, ), 在 ^ (5)的中间通孔内壁的 两端分别设有沟槽(51, 51' ), 每个沟槽内设有一个密封圏, 村套(4)设在两个沟 槽之间, 端盖(8)的内腔设有螺纹, 该端盖与 ^销轴(1)端部螺紋连接并且伸 入到摇臂 (5)的中间通孔中, 端盖外壁挡住中间通孔内壁上的一个沟槽。
2、根据权利要求 1所述的汽车转向中间 总成,其特^ ^于: 所述密封圏的线径 大于所述沟槽的深度。
3、根据权利要求 1或 2所述的汽车转向中间 总成,其特^ ^于: 所述密封圏的 线径为 2 ~ 8匪, 密封圏的内径为 20~ 100匪; 所述沟槽的深度为 2 ~ 8匪, 沟槽的宽 度为 3~18匪。
4、根据权利要求 3所述的汽车转向中间 总成,其特^ ^于: 所述密封圏的线径 为 5.3匪, 密封圏的内径为 60匪; 所述沟槽的深度为 4.6匪, 沟槽的宽度为 7.1匪。
5、根据权利要求 1或 2所述的汽车转向中间摇臂总成,其特征在于: 所述摇臂销轴 与螺母 ( 7 )之间设有垫圏 ( 6 ), 该垫圏 ( 6 )的外圏法兰与所述端盖( 8 )•fet妻。
6、根据权利要求 1或 2所述的汽车转向中间 总成,其特^ ^于: 所述密封圏由 丁腈才象月交制成; 所述螺母为自锁螺母。
7、根据权利要求 1或 2所述的汽车转向中间摇臂总成,其特征在于: 所述摇臂销轴 与 ^支架之间过盈配合; 所述村套与 ^销轴之间间隙配合。
PCT/CN2013/087297 2013-05-23 2013-11-18 汽车转向中间摇臂总成 WO2014187085A1 (zh)

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CN201310196457.X 2013-05-23
CN201310196457.XA CN104176120A (zh) 2013-05-23 2013-05-23 汽车转向中间摇臂总成

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