WO2023179281A1 - 一种滚轮滑柱复合滑轨承载系统 - Google Patents

一种滚轮滑柱复合滑轨承载系统 Download PDF

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Publication number
WO2023179281A1
WO2023179281A1 PCT/CN2023/077559 CN2023077559W WO2023179281A1 WO 2023179281 A1 WO2023179281 A1 WO 2023179281A1 CN 2023077559 W CN2023077559 W CN 2023077559W WO 2023179281 A1 WO2023179281 A1 WO 2023179281A1
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Prior art keywords
rail
roller
slide
slide rail
cage
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PCT/CN2023/077559
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English (en)
French (fr)
Inventor
何燕燕
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延锋国际汽车技术有限公司
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Publication of WO2023179281A1 publication Critical patent/WO2023179281A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/07—Slide construction
    • B60N2/0722—Constructive details

Definitions

  • the invention relates to the field of automobile seat slide rails, and in particular to a roller slide column composite slide rail bearing system.
  • the load-bearing methods between the upper rail and the lower rail are mainly divided into three forms: steel ball/roller, roller and sliding column.
  • the characteristic of the steel ball/roller type bearing system (Fig. 1) is that when the upper track 10 is adjusted relative to the lower track 20, the rolling bearing mechanism 1 will be displaced relative to the upper track 10 and the lower track 20 at the same time.
  • changes in the distance of the bearing mechanism 1 relative to the rear end of the upper rail 10 will also affect the modal test evaluation of the seat.
  • the cantilever a of the slide rail system is the largest at this time, and its modal test results are the worst.
  • the cantilever b is the smallest.
  • the roller-type load-bearing system (Fig. 2) moves the upper rail 10 relative to the lower rail 20 by moving the roller 2 synchronously with the upper rail 10.
  • this load-bearing structure cannot provide support for the upper rail 10 laterally, resulting in poor lateral stiffness. If additional support structures are added, the slide rail structure will be too complex.
  • a roller-slide composite slide rail bearing system including an upper slide rail, a lower rail and a cage,
  • the upper slide rail and the lower slide rail are laterally asymmetrical structures
  • the first side of the upper rail of the upper slide rail is in contact with the lower rail through the combined structure of at least one roller mechanism and at least one first cage, so that the upper slide rail and the lower rail are lowered while ensuring lateral stiffness. Its kinematic friction coefficient.
  • the roller mechanism is disposed below the first side of the upper rail and provides motion support
  • the first cage is disposed between the outer side of the first side of the upper rail and the first side of the lower rail to provide motion support above the first side of the upper rail.
  • the roller mechanism is composed of a roller, a roller shaft arranged in the roller, and a bushing arranged between the roller shaft and the roller.
  • At least one roller shaft fixing hole is provided at the lower part of the first inner side of the upper rail and the first outer side of the upper rail, and the roller mechanism is installed on the first side of the upper rail through the roller shaft. below and in contact with the first supporting surface of the lower rail on the lower rail.
  • At least one sliding column is provided on the first cage, and the sliding column contacts the upper slide rail and the lower slide rail and provides support.
  • At least one second cage provided between the second outer side of the upper rail and the second side of the lower rail;
  • At least a pair of second stop ends are provided on the second outer side of the upper rail, and the second retainer is provided between the second stop ends.
  • the upper and lower parts of the second cage are provided with at least two sliding columns, and the second cage contacts the upper slide rail and the lower slide rail through the sliding columns. and provide movement support.
  • the lower part of the second cage is in contact with the second supporting surface of the lower rail of the lower rail through the sliding column, and the lateral width of the second supporting surface of the lower rail is smaller than the The first supporting surface of the lower rail.
  • a wire harness cavity is provided between the first support surface of the lower rail, the rail bracket and the first side of the lower rail, and the wire harness cavity is used to store the seat wire harness.
  • At least one pair of first pairs are provided on the first outer side of the upper rail. Stop ends, the first retainer is arranged between the first stop ends.
  • the invention provides a roller slide column composite slide rail bearing system.
  • the slide column cage and the roller mechanism between the upper slide rail and the lower slide rail in an asymmetric bearing structure, the lateral direction of the slide rail system can be satisfied. While improving stiffness, it also reduces friction loss and improves durability.
  • Figure 1 is a schematic diagram of a slide rail system in the form of steel ball/roller bearing in the prior art.
  • Figure 2 is a schematic diagram of a roller-bearing slide rail system in the prior art.
  • Figure 3 is a schematic diagram of a slide rail system with a lower column bearing type in the prior art with a symmetrical structure.
  • Figure 4 is the second schematic diagram of the slide rail system in the prior art with a symmetrical structure and a lower column bearing type.
  • Figure 5 is the third schematic diagram of the slide rail system in the prior art with a symmetrical structure and a lower column bearing type.
  • Figure 6 is a cross-sectional view of the present invention.
  • Figure 7 is an exploded view of the roller mechanism of the present invention.
  • Figure 8 is an axle side view of the roller mechanism of the present invention after assembly.
  • FIG. 9 is a schematic diagram of the position of the wire harness cavity according to Embodiment 1 of the present invention.
  • Figure 10 is a comparison diagram between the present invention and the prior art.
  • a roller slide column composite slide rail bearing system mainly includes: a laterally asymmetric upper slide rail 100 and a lower slide rail 200; a roller mechanism 400 provided on the first side 120 of the upper rail of the upper slide rail 100, One of the contact surfaces of the upper slide rail 100 and the lower slide rail 200 is in contact through the roller mechanism 400; the first cage 300 and the second cage 350 are provided between the upper slide rail 100 and the lower rail 200.
  • the second outer side of the upper rail 170 is in contact with the upper and lower parts of the second side of the lower rail 260 using the second cage 350 in a conventional manner through the sliding posts 301 arranged at the upper and lower parts of the second cage 350 .
  • the moving position of the second cage 350 relative to the upper slide rail 100 is restricted by the second stop end 172 with both ends located on the second outer side 170 of the upper rail.
  • a pair of roller shaft fixing holes 130 are correspondingly opened at the bottom of the first side 110 of the upper rail and the first outer side 111 of the upper rail.
  • the roller mechanism 400 is composed of a roller shaft 420, a roller 410 and a sleeve 430. After the roller shaft 420 passes through the center of the roller 410, both ends of the roller shaft 420 are clamped into the roller shaft fixing hole 130, so that the roller shaft 420 is placed between the first inner side 110 of the upper rail and the first outer side 111 of the upper rail.
  • a sleeve 430 is provided between the roller shaft 420 and the roller 410 to reduce the friction between the roller 410 and the roller shaft 420 .
  • a first cage 300 is arranged between the first outer side 111 of the upper rail and the first side 210 of the lower rail.
  • a sliding column 301 is also arranged on the first cage 300 and is stopped by the first stopper on the first outer side 129 of the upper rail. Movement is restricted by end 122. Only the upper part of the first outer side of the upper rail 111 is in contact with the upper part of the first side of the lower rail 210 through the first cage 300 .
  • the first cage 300 and the second cage 350 are asymmetric.
  • the lower part of the first outer side 111 of the upper rail is in contact with the first supporting surface 230 of the lower rail 200 at the bottom of the lower rail 200 through the roller 410 .
  • one side of the upper slide rail 100 is in contact with the lower rail 200 through the sliding column 301, and the other side is in contact with the composite roller 410 using the sliding column 301. Therefore, the lower rail 100 is in contact with the lower rail 200 through the sliding column 301.
  • the lateral dimension of the first supporting surface 230 of the lower rail that is in contact with 410 is larger than the second supporting surface 280 of the lower rail that is in contact with the sliding column 301 .
  • the size of the space between the rail bracket 40 and the first side 210 of the lower rail is enlarged, so that the wire harness cavity 201 with a lateral cross-sectional size less than 22mm*15mm can be arranged to accommodate the long slide rail wire harness passing therethrough.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

一种滚轮滑柱复合滑轨承载系统，包括上滑轨（100）、下滑轨（200）和保持架，上滑轨和下滑轨为侧向非对称结构；上滑轨的上轨第一侧（120）通过至少一滚轮机构（400）和至少一第一保持架（300）的组合结构与下滑轨相接触，使得上滑轨与下滑轨在保证侧向刚度的前提下降低其运动摩擦系数。通过将滑柱保持架和滚轮机构以非对称承载结构的方式布置在上滑轨和下滑轨之间，在满足滑轨系统侧向刚度的同时，降低其摩擦损耗，提升耐久度。

Description

一种滚轮滑柱复合滑轨承载系统 技术领域
本发明涉及汽车座椅滑轨领域，特别涉及一种滚轮滑柱复合滑轨承载系统。
背景技术
汽车座椅滑轨系统中，上轨道和下轨道间的承载方式主要分为，钢球/滚柱、滚轮和滑柱三种形式。
钢球/滚柱形式承载系统(图1)的特点是，当上轨道10相对于下轨道20进行调节时，滚动承载机构1会同时相对于上轨道10和下轨道20发生位移。受到设计行程配比关系的影响，滑轨系统的行程取决于上轨道10的长度L1和承载机构1的长度L2，其最大行程为L＝(L1-L2)*2，除此以外还受到下轨道20的长度限制。同时，随着承载机构1相对于上轨道10后端的距离变化还会影响座椅的模态试验评价。例如，当上轨道10位于其行程最后位置时，此时滑轨系统的悬臂a最大，其模态试验结果最差。反之位于最前位置时，悬臂b最小。
滚轮形式承载系统(图2)则是通过与上轨道10同步运动滚轮2使上轨道10相对于下轨道20移动，但这种承载结构侧向上无法对上轨道10提供支撑，导致侧向刚度较差。若添加额外支撑结构又会导致滑轨结构过于复杂。
普通对称结构的滑柱形式承载系统(图3至图5)虽然解决了钢球/滚柱承载形式下悬臂过长，滚轮承载形式下侧向刚度差等问题。但因其滑柱承载机构3与上轨道10和下轨道20的接触摩擦形式为滑动摩擦，导致其摩擦系数较大。同时因其接触面积较大，在同等负载耐久下，润滑油脂很容易被推至滑轨行程的两侧，造成摩擦力进一步提高，加剧轨道系统的磨损。
发明内容
为了实现上述目的，本发明所采用的技术方案是：
一种滚轮滑柱复合滑轨承载系统，包括上滑轨、下滑轨和保持架，
所述上滑轨和所述下滑轨为侧向非对称结构；
所述上滑轨的上轨第一侧通过至少一滚轮机构和至少一第一保持架的组合结构与所述下滑轨相接触，使得上滑轨与下滑轨在保证侧向刚度的前提下降低其运动摩擦系数。
在本发明的一个优选实施例中，所述滚轮机构设置在所述上轨第一侧的下方并提供运动支撑；
所述第一保持架设置在上轨第一侧外侧与下轨第一侧之间，为上轨第一侧上方提供运动支撑。
在本发明的一个优选实施例中，所述滚轮机构由滚轮，轴设在所述滚轮中的滚轮轴以及设置在所述滚轮轴和滚轮之间的轴套组成。
在本发明的一个优选实施例中，设置在上轨第一内侧和上轨第一外侧下部的至少一滚轮轴固定孔，所述滚轮机构通过所述滚轮轴安装在所述上轨第一侧的下方并于所述下滑轨上的下轨第一支撑面接触。
在本发明的一个优选实施例中，所述第一保持架上设置有至少一滑柱，所述滑柱与所述上滑轨和所述下滑轨接触并提供支撑作用。
在本发明的一个优选实施例中，还包括：
设置在所述上轨第二外侧与所述下轨第二侧之间的至少一第二保持架；
设置在所述上轨第二外侧上的至少一对第二止动端，所述第二保持架设置在所述第二止动端之间。
在本发明的一个优选实施例中，所述第二保持架上部和下部设置有至少二个滑柱，所述第二保持架通过所述滑柱与所述上滑轨和所述下滑轨接触并提供运动支撑。
在本发明的一个优选实施例中，所述第二保持架下部通过所述滑柱与所述下滑轨的下轨第二支撑面接触，所述下轨第二支撑面侧向宽度小于所述下轨第一支撑面。
在本发明的一个优选实施例中，所述下轨第一支撑面、轨支架与所述下轨第一侧之间设置有线束腔，所述线束腔用于收纳座椅线束。
在本发明的一个优选实施例中，所述上轨第一外侧上设置有至少一对第一 止动端，所述第一保持架布置在所述第一止动端之间。
本发明的有益效果在于：
本发明所提供的一种滚轮滑柱复合滑轨承载系统，通过将滑柱保持架和滚轮机构以非对称承载结构的方式布置在上滑轨和下滑轨之间，在满足滑轨系统侧向刚度的同时，降低其摩擦损耗，提升耐久度的目的。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1是现有技术中钢球/滚柱承载形式的滑轨系统示意图。
图2是现有技术中滚轮承载形式的滑轨系统示意图。
图3是现有技术中对称结构下滑柱承载形式的滑轨系统示意图一。
图4是现有技术中对称结构下滑柱承载形式的滑轨系统示意图二。
图5是现有技术中对称结构下滑柱承载形式的滑轨系统示意图三。
图6是本发明的剖视图。
图7是本发明的滚轮机构爆炸图。
图8是本发明的滚轮机构装配后轴侧图。
图9是本发明的实施例一的线束腔位置示意图。
图10是本发明的与现有技术对照图。
具体实施方式
在本发明的描述中，需要说明的是，术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，纵向(X向)”“侧向(Y向)”“垂向(Z向)”为汽车领域空间坐标系术语，是本技术领域人员所熟知的专业术语，以上描述为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
以下结合附图和具体实施方式对本发明的详细结构作进一步描述。
参考图6的一种滚轮滑柱复合滑轨承载系统，主要包括：侧向非对称的上滑轨100和下滑轨200；设置在上滑轨100的上轨第一侧120的滚轮机构400，使得上滑轨100与下滑轨200的其中一个接触面通过滚轮机构400进行接触；设置在上滑轨100和下滑轨200之间的第一保持架300和第二保持架350。
上轨第二外侧170以常规的方式使用第二保持架350通过布置在第二保持架350上部和下部的滑柱301与下轨第二侧260的上部和下部相接触。当上滑轨100相对于下滑轨200移动时，第二保持架350相对于上滑轨100的移动位置被设置其两端位于上轨第二外侧170上的第二止动端172所限制。
结合参考图7和图8，上轨第一侧110和上轨第一外侧111的底部侧向对应的开设有一对滚轮轴固定孔130。滚轮机构400由滚轮轴420、滚轮410和轴套430组成。滚轮轴420从滚轮410的中央穿过后，滚轮轴420的两端卡入滚轮轴固定孔130中，使得滚轮轴420被置于上轨第一内侧110和上轨第一外侧111之间。滚轮轴420和滚轮410之间设置有轴套430，从而降低滚轮410与滚轮轴420之间的摩擦。上轨第一外侧111与下轨第一侧210之间布置有第一保持架300，第一保持架300上同样布置有滑柱301，并被上轨第一外侧129上的第一止动端122所限制移动。上轨第一外侧111仅有其上部与下轨第一侧210的上部通过第一保持架300进行接触。第一保持架300与第二保持架350是非对称的。上轨第一外侧111的下部通过滚轮410与下滑轨200底部的下轨第一支撑面230相接触。
参考图9在本发明的一个优选实施例中，上滑轨100的一侧通过滑柱301与下滑轨200相接触，而另一侧采用滑柱301复合滚轮410相接触，因此，下与滚轮410相接触的下轨第一支撑面230的侧向尺寸大于通过滑柱301相接触的下轨第二支撑面280。使得轨支架40与下轨第一侧210之间的空间尺寸变大，得以布置侧向截面尺寸小于22mm*15mm的线束腔201，用于容纳长滑轨线束从中穿过。
参考图10，当上滑轨100的一侧通过滚轮410与下轨第一支撑面230相接触时，其接触面的摩擦形式为滚动摩擦，摩擦系数约为0.01。而通过滑柱301进行接触时，其接触面的摩擦形式为滑动摩擦，摩擦系数约为0.05。若采用本 发明上述非对称结构的上滑轨100和下滑轨200，其一侧采用滑柱301复合滚轮410的方式，能将其摩擦系数降低至0.03。同时，配合在滑柱301中设置储油槽的结构特征，在满足滑轨系统侧向刚度的同时，降低其摩擦损耗，提升耐久度。

Claims (10)

  1. 一种滚轮滑柱复合滑轨承载系统，包括上滑轨、下滑轨和保持架，其特征在于，
    所述上滑轨和所述下滑轨为侧向非对称结构；
    所述上滑轨的上轨第一侧通过至少一滚轮机构和至少一第一保持架的组合结构与所述下滑轨相接触，使得上滑轨与下滑轨在保证侧向刚度的前提下降低其运动摩擦系数。
  2. 如权利要求1所述的一种滚轮滑柱复合滑轨承载系统，其特征在于，所述滚轮机构设置在所述上轨第一侧的下方并提供运动支撑；
    所述第一保持架设置在上轨第一外侧与下轨第一侧之间，为上轨第一侧上方提供运动支撑。
  3. 如权利要求2所述的一种滚轮滑柱复合滑轨承载系统，其特征在于，所述滚轮机构由滚轮，轴设在所述滚轮中的滚轮轴以及设置在所述滚轮轴和滚轮之间的轴套组成。
  4. 如权利要求3所述的一种滚轮滑柱复合滑轨承载系统，其特征在于，设置在上轨第一内侧和上轨第一外侧下部的至少一滚轮轴固定孔，所述滚轮机构通过所述滚轮轴安装在所述上轨第一侧的下方并于所述下滑轨上的下轨第一支撑面接触。
  5. 如权利要求2所述的一种滚轮滑柱复合滑轨承载系统，其特征在于，所述第一保持架上设置有至少一滑柱，所述滑柱与所述上滑轨和所述下滑轨接触并提供支撑作用。
  6. 如权利要求1至5中的任意一项所述的一种滚轮滑柱复合滑轨承载系统，其特征在于，还包括：
    设置在所述上轨第二外侧与所述下轨第二侧之间的至少一第二保持架；
    设置在所述上轨第二外侧上的至少一对第二止动端，所述第二保持架设置在所述第二止动端之间。
  7. 如权利要求6所述的一种滚轮滑柱复合滑轨承载系统，其特征在于，所述第二保持架上部和下部设置有至少二个滑柱，所述第二保持架通过所述滑柱 与所述上滑轨和所述下滑轨接触并提供运动支撑。
  8. 如权利要求7所述的一种滚轮滑柱复合滑轨承载系统，其特征在于，所述第二保持架下部通过所述滑柱与所述下滑轨的下轨第二支撑面接触，所述下轨第二支撑面侧向宽度小于所述下轨第一支撑面。
  9. 如权利要求7所述的一种滚轮滑柱复合滑轨承载系统，其特征在于，所述下轨第一支撑面、轨支架与所述下轨第一侧之间设置有线束腔，所述线束腔用于收纳座椅线束。
  10. 如权利要求5所述的一种滚轮滑柱复合滑轨承载系统，其特征在于，所述上轨第一外侧上设置有至少一对第一止动端，所述第一保持架布置在所述第一止动端之间。
PCT/CN2023/077559 2022-03-25 2023-02-22 一种滚轮滑柱复合滑轨承载系统 WO2023179281A1 (zh)

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