WO2014154031A1 - 弹性轴套 - Google Patents

弹性轴套 Download PDF

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Publication number
WO2014154031A1
WO2014154031A1 PCT/CN2014/070021 CN2014070021W WO2014154031A1 WO 2014154031 A1 WO2014154031 A1 WO 2014154031A1 CN 2014070021 W CN2014070021 W CN 2014070021W WO 2014154031 A1 WO2014154031 A1 WO 2014154031A1
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WO
WIPO (PCT)
Prior art keywords
elastic sleeve
wear
elastic
main body
wall
Prior art date
Application number
PCT/CN2014/070021
Other languages
English (en)
French (fr)
Inventor
孙志华
马赞兵
Original Assignee
浙江长盛滑动轴承股份有限公司
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
Priority claimed from CN 201320155522 external-priority patent/CN203176164U/zh
Priority claimed from CN201310109546.6A external-priority patent/CN104074866A/zh
Application filed by 浙江长盛滑动轴承股份有限公司 filed Critical 浙江长盛滑动轴承股份有限公司
Publication of WO2014154031A1 publication Critical patent/WO2014154031A1/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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/02—Sliding-contact bearings
    • 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only

Definitions

  • the present invention relates to the field of bushing technology, and more particularly to an elastic bushing. Background technique
  • the sleeve fixes the movement shaft and moves it inside, the inner wall of the sleeve cooperates with the outer wall of the movement shaft, and the outer wall of the sleeve is supported on the support mechanism to achieve the effect of rotating the support shaft and the support mechanism.
  • the sleeve acts to limit its radial vibration to the moving shaft and provides uniform support, and is made of metal or hard plastic.
  • the vibration impact force of the moving shaft of the hard bushing is large, so that the wear amount of the moving shaft is increased, and the working life of the moving shaft is low.
  • an elastic bushing made of plastic or rubber having a lower hardness is used in a mechanism in which the radial turbulence of the moving shaft is large.
  • the elastic bushing cushions the moving shaft when the moving shaft is radially tilted, thereby reducing the impact force between the sleeve and the moving shaft, and improving the service life of the moving shaft.
  • the elastic bushing tends to have a large wear amount, and the service life is low and the maintenance cost is high.
  • the present invention provides an elastic bushing, which realizes the effect of improving the service life of the elastic bushing and reducing the maintenance cost.
  • the present invention provides the following technical solutions:
  • An elastic sleeve comprising an elastic sleeve body, further comprising a wear plate disposed on an inner wall of the elastic sleeve body;
  • An inner end surface of the wear plate protrudes from an inner wall of the elastic sleeve body or is parallel to an inner wall of the elastic sleeve body, wherein an inner end surface of the wear piece is oriented toward the axis of the elastic sleeve body Face.
  • an oil storage groove is disposed on an inner end surface of the wear plate.
  • the number of the oil storage grooves is plural, and the hooks are distributed on the inner end surface of the wear plate; the oil storage groove is an arc oil storage groove.
  • the number of the wear plates is plural, and is evenly distributed along the circumferential direction of the elastic bushing body.
  • the wear-resistant piece is a metal piece, an engineering plastic piece or a metal plastic composite piece.
  • the inner wall of the elastic sleeve body is provided with a wear-resistant sheet receiving groove
  • the outer end surface of the wear plate is provided with a positioning protrusion, and the bottom surface of the groove of the wear plate receiving groove is provided with a groove that cooperates with the positioning protrusion;
  • the outer end surface of the wear piece is a surface that is connected to the elastic sleeve body.
  • the elastic bushing main body is provided with a plurality of openings penetrating through the inner wall and the outer wall thereof and distributed along the circumferential direction thereof; the extending direction of the opening and the axial direction of the elastic bushing main body parallel.
  • the outer wall of the elastic sleeve body is a toothed surface, and a single tooth shape extends in parallel with an axial direction of the elastic sleeve body.
  • the outer wall of the elastic sleeve body is provided with a plurality of limiting ribs distributed along the circumferential direction thereof, and the extending direction of the limiting rib and the axial direction of the elastic sleeve body Flat Row.
  • the limiting rib is the same as the number of the openings, and the limiting rib is spaced apart from the opening.
  • the outer wall of the elastic sleeve body is a toothed surface, and a single tooth shape extends in parallel with an axial direction of the elastic sleeve body.
  • the elastic bushing body is a plastic bushing body or a rubber bushing body.
  • the outer wall of the elastic bushing main body is provided with a limiting boss for axially fixing with the supporting structure.
  • the moving shaft is in contact with the wear-resistant piece, and the hardness of the wear-resistant piece is higher than that of the elastic bushing main body, and the wear amount thereof is small.
  • the friction loss of the elastic sleeve is reduced, the service life of the elastic sleeve is improved, the frequency of replacement is reduced, and the maintenance cost is reduced.
  • FIG. 1 is a schematic structural view of an elastic bushing according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of an elastic bushing according to an embodiment of the present invention.
  • FIG. 3 is a schematic view showing a first structure of a wear-resistant sheet according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of an oil storage tank of a wear plate according to an embodiment of the present invention.
  • FIG. 5 is a schematic view showing a second structure of a wear-resistant sheet according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural view of a main body of an elastic bushing according to an embodiment of the present invention.
  • Figure 7 is a partial enlarged view of a portion A in Figure 2;
  • FIG. 8 is a bottom view of a main body of an elastic bushing according to an embodiment of the present invention
  • Figure 9 is a partial enlarged view of a portion B of Figure 8;
  • FIG. 10 is a top plan view of a main body of an elastic bushing according to an embodiment of the present invention.
  • FIG. 11 is a schematic view showing the installation of an elastic bushing according to an embodiment of the present invention.
  • Elastic bushing body 1 wear plate receiving groove 11, groove 12, opening 13, limit rib 14, limit boss 15, wear plate 2, oil sump 21, positioning boss 22, elastic bushing installation Kong eight. detailed description
  • the invention provides an elastic sleeve, which can improve the service life of the elastic sleeve and reduce the maintenance cost.
  • FIG. 1 is a schematic structural view of an elastic bushing according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the elastic bushing provided by an embodiment of the present invention.
  • An embodiment of the present invention provides an elastic bushing, including an elastic bushing body, and a wear-resistant piece 2 disposed on an inner wall of the elastic bushing main body 1.
  • the inner end surface of the wear-resistant piece 2 protrudes from the elastic bushing main body 1.
  • the inner wall is parallel to the inner wall of the elastic sleeve body 1, wherein the inner end surface of the wear piece 2 is its face facing the axis of the elastic sleeve body 1.
  • the elastic sleeve provided by the embodiment of the present invention is provided with the wear-resistant piece 2 on the inner wall of the elastic sleeve body 1, so that the movement shaft is in contact with the wear-resistant piece 2, and the hardness of the wear-resistant piece 2 is higher than that of the elastic sleeve body 1.
  • the wear amount is small, which reduces the friction loss of the elastic bushing, improves the service life of the elastic bushing, reduces the frequency of replacement, and reduces maintenance costs.
  • the inner end surface of the wear plate 2 is provided with an oil reservoir 21.
  • the wear piece 2 is in contact with the outer wall of the moving shaft, and the lubricating oil is stored in the oil storage groove 21 to lubricate the moving shaft and the wear piece 2, further reducing The friction loss between the two is reduced, the service life of the elastic bushing provided by the embodiment is further improved, and the service life of the moving shaft sleeved in the bushing provided by the embodiment is improved.
  • the number of the oil sump 21 is plural, and is uniformly distributed on the inner end surface of the wear-resistant sheet 2. Further, the lubrication effect is further improved by uniformly providing a plurality of oil reservoirs 21 on the wear-resistant sheet 2.
  • the oil reservoir 21 is an arcuate oil reservoir.
  • the thickness of the wear-resistant sheet 2 is not large, and thus the depth of the arc-shaped oil storage tank is not large, and it is preferable that the longitudinal section of the arc-shaped oil storage tank is a poor arc end. It can also be processed into a square oil reservoir, a triangular oil reservoir or a hemispherical groove. The specific structure is not limited and is within the protection range.
  • the number of the wear-resistant sheets 2 is plural and evenly distributed along the circumferential direction of the elastic sleeve body 1.
  • the number of the wear-resistant sheets 2 in this embodiment is three, and is evenly distributed along the circumferential direction of the elastic sleeve body 1, so that after the three wear-resistant sheets 2 are in contact with the moving shaft, the hooks apply a supporting force to the moving shaft.
  • the wear-resistant sheet 2 is unevenly disposed on the inner wall of the elastic sleeve body 1, and after installation, the dense side of the wear-resistant sheet 2 is placed close to the ground.
  • the wear resistant sheet 2 is a metal sheet, an engineering plastic sheet or a metal plastic composite sheet. It is also possible to use other materials having a high hardness to form the wear-resistant sheet 2, which is only required to have a hardness greater than that of the elastic sleeve body 1.
  • the inner wall of the elastic sleeve body 1 is provided with a wear-resistant sheet receiving groove 11; the outer end surface of the wear-resistant sheet 2 is provided with a positioning convex portion 22, and the bottom surface of the wear-resistant sheet receiving groove 11 is provided.
  • the outer end surface of the sheet 2 is the surface to which the elastic sleeve body 1 is connected.
  • the positioning boss portion 22 has a portion having a diameter larger than that of the end portion of the wear piece 2, and the groove surface of the groove 12 is fitted to the outer wall of the positioning boss portion 22.
  • the positioning boss portion 22 includes an ellipsoidal portion and a cylindrical portion, and a projected area of the ellipsoidal portion toward the outer end surface of the wear-resistant sheet 2 is larger than a projected area of the cylindrical portion toward the outer end surface of the wear-resistant sheet 2.
  • the opening of the groove 12 is in contact with the cylindrical portion, and the elastic deformation of the elastic sleeve body 1 is required to make the ellipsoidal portion enter the inside of the groove 12 through the opening of the groove 12, further improving The connection stability of the positioning boss 22 and the groove 12 is stabilized.
  • the wear-resistant sheet receiving groove 11 only on the inner wall of the elastic sleeve body 1; the wear-resistant sheet 2 can also be connected to the inner wall of the elastic sleeve body 1 by bolts or glue, which is not specifically limited and is Within the scope of protection.
  • the wear-resistant sheet 2 can be injection-molded directly to the wear-resistant sheet holding groove 11, or the wear-resistant sheet 2 can be processed and embedded in the wear-resistant sheet receiving groove 11.
  • the elastic sleeve body 1 is provided with a plurality of openings 13 extending through the inner and outer walls thereof and uniformly distributed along the circumference thereof; the opening 13 extends in a direction parallel to the axial direction of the elastic sleeve body 1.
  • the number of the openings 13 is three, and is evenly distributed along the circumferential direction of the elastic sleeve body 1. That is, the three openings 13 penetrate the inner and outer walls of the elastic sleeve body 1, so that the elastic sleeve body 1 has three curved sheets.
  • the outer wall of the elastic sleeve body 1 is a toothed surface whose single tooth shape extends in a direction parallel to the axial direction of the elastic sleeve body 1. Since the opening 13 is provided, one end of the elastic sleeve body 1 is divided into a plurality of curved pieces, and during the expansion of the moving shaft, the curved piece is deformed so that the tooth profiles provided on the tooth surface of the outer wall are close to each other. The arc deformation of the curved surface is achieved, and the elastic deformation ability of the elastic sleeve body 1 is further improved.
  • the first tooth angle b of the center line of the adjacent two tooth shapes is 6 .
  • the second tooth angle d of the center line of the opening 13 and the center line of the tooth shape adjacent thereto is 6.
  • the angle between the two adjacent tooth profiles is 90. ⁇ 1. .
  • the outer wall of the elastic sleeve body 1 is provided with a plurality of limiting ribs 14 distributed along the circumferential direction thereof, and the extending direction of the limiting ribs 14 is parallel to the axial direction of the elastic sleeve body 1.
  • the angle a of the limiting rib 14 is 120. Shishi 5°.
  • the number of the limiting ribs 14 is the same as the number of the openings 13, and the limiting ribs 14 are spaced apart from the opening 13. That is, the opening 13 divides one end of the elastic sleeve body 1 into a plurality of curved sheets, and the ribs 14 are disposed in the middle of the curved sheets.
  • the outer wall of the elastic sleeve body 1 is a toothed surface whose single tooth shape extends in parallel with the axial direction of the elastic sleeve body 1 to improve the elastic shaft of the elastic sleeve and the support mechanism.
  • the frictional force of the circumferential movement of the mounting hole improves the fixing stability of the elastic bushing provided by the embodiment with respect to the supporting mechanism.
  • the elastic sleeve body 1 is a plastic sleeve body or a rubber sleeve body.
  • the outer wall of the elastic sleeve body 1 is provided with a stopper boss 15 for axially fixing with the support structure.
  • the limiting boss 15 of the elastic bushing main body 1 is in contact with the end surface of the elastic bushing mounting hole A of the receiving structure, thereby effectively limiting the elastic shaft. The axial movement of the sleeve relative to the support mechanism.
  • the limiting boss 15 is disposed at one end of the limiting rib 14.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

一种弹性轴套，包括弹性轴套主体（1），还包括设置于所述弹性轴套主体（1）的内壁上的耐磨片（2）。所述耐磨片（2）的内端面伸出所述弹性轴套主体（1）的内壁或与所述弹性轴套主体（1）的内壁平行，其中，所述耐磨片（2）的内端面为其朝向所述弹性轴套主体（1）轴线的面。通过在弹性轴套主体（1）的内壁上设置耐磨片（2），使得运动轴与耐磨片（2）接触，耐磨片（2）的硬度高于弹性轴套主体（1），其磨损量较小，进而降低了弹性轴套的摩擦损失，提高了弹性轴套的使用寿命，降低其更换的频率，进而降低维护成本。

Description

弹性轴套
本申请要求于 2013 年 03 月 29 日提交中国专利局、 申请号为 201310109546.6、 发明名称为 弹性轴套" 的中国专利申请的优先权， 其全部 内容通过引用结合在本申请中,
本申请要求于 2013 年 03 月 29 日提交中国专利局、 申请号为 201320155522.X, 发明名称为 ;弹性轴套" 的中国专利申请的优先权， 其全部 内容通过引用结合在本申请中, 技术领域
本发明涉及轴套技术领域， 更具体地说， 涉及一种弹性轴套。 背景技术
轴套固定运动轴且使其在内部运动， 轴套的内壁与运动轴的外壁配合， 并 且， 轴套的外壁支撑于承托机构上， 以达到将运动轴转动支承与承托机构的效 果。
由于大多数应用场合中存在运动轴的径向攒动，而轴套对运动轴起到限制 其径向振动的作用， 并为其提供均匀的支撑力， 而采用金属材料或硬质塑料制 成的硬质轴套所受的运动轴的振动冲击力较大，使得运动轴的磨损量加大，运 动轴的工作寿命较低。
为了解决这个问题，在运动轴的径向攒动量较大的机构中采用硬度较低的 塑料或橡胶制成的弹性轴套。 弹性轴套在运动轴径向攒动时对运动轴产生緩 冲， 从而降低轴套与运动轴之间的冲击力， 提高运动轴的使用寿命。
但是， 由于硬度较低的塑料或橡胶耐磨性能较差，往往使得弹性轴套的磨 损量较大， 其使用寿命较低， 维护成本较高。
综上所述， 如何提高弹性轴套的使用寿命， 以降低维护成本， 是目前本领 域技术人员亟待解决的问题。 发明内容 有鉴于此， 本发明提供了弹性轴套， 实现了提高弹性轴套的使用寿命， 降 低维护成本的作用。
为了达到上述目的， 本发明提供如下技术方案：
一种弹性轴套， 包括弹性轴套主体，还包括设置于所述弹性轴套主体的内 壁上的耐磨片；
所述耐磨片的内端面伸出所述弹性轴套主体的内壁或与所述弹性轴套主 体的内壁平行， 其中， 所述耐磨片的内端面为其朝向所述弹性轴套主体轴线的 面。
优选的， 上述弹性轴套中， 所述耐磨片的内端面上设置有储油槽。
优选的， 上述弹性轴套中， 所述储油槽的数量为多个， 且均勾分布于所述 耐磨片的内端面上； 所述储油槽为弧形储油槽。
优选的， 上述弹性轴套中， 所述耐磨片的数量为多个， 且沿所述弹性轴套 主体的周向均匀分布。
优选的， 上述弹性轴套中， 所述耐磨片为金属片、 工程塑料片或金属塑料 复合片。
优选的， 上述弹性轴套中， 所述弹性轴套主体的内壁上设置有耐磨片容纳 槽；
所述耐磨片的外端面设置有定位凸起部，所述耐磨片容纳槽的槽底面设置 有与所述定位凸起部配合的凹槽；
其中， 所述耐磨片的外端面为其与所述弹性轴套主体连接的面。
优选的， 上述弹性轴套中， 所述弹性轴套主体上设置有多个贯穿其内壁与 外壁且沿其周向均勾分布的开口；所述开口的延伸方向与所述弹性轴套主体的 轴向平行。
优选的， 上述弹性轴套中， 所述弹性轴套主体的外壁为齿形面， 其单个齿 形的延伸方向与所述弹性轴套主体的轴向平行。
优选的， 上述弹性轴套中， 所述弹性轴套主体的外壁上设置有多个沿其周 向均勾分布的限位筋， 所述限位筋的延伸方向与所述弹性轴套主体的轴向平 行。
优选的， 上述弹性轴套中， 所述限位筋与所述开口的数量相同， 且所述限 位筋与所述开口间隔布置。
优选的， 上述弹性轴套中， 所述弹性轴套主体的外壁为齿形面， 其单个齿 形的延伸方向与所述弹性轴套主体的轴向平行。
优选的， 上述弹性轴套中， 所述弹性轴套主体为塑料轴套主体或橡胶轴套 主体。
优选的， 上述弹性轴套中， 所述弹性轴套主体的外壁上设置有用于与承托 结构轴向固定的限位凸台。
本发明提供的弹性轴套中，通过在弹性轴套主体的内壁上设置耐磨片，使 得运动轴与耐磨片接触， 耐磨片的硬度高于弹性轴套主体， 其磨损量较小， 进 而降低了弹性轴套的摩擦损失，提高了弹性轴套的使用寿命， 降低其更换的频 率， 进而降低维护成本。 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，显而易见地， 下面描述 中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲，在不付 出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的弹性轴套的结构示意图；
图 2为本发明实施例提供的弹性轴套的剖视示意图；
图 3为本发明实施例提供的耐磨片的第一结构示意图；
图 4为本发明实施例提供的耐磨片的储油槽的剖视示意图；
图 5为本发明实施例提供的耐磨片的第二结构示意图；
图 6为本发明实施例提供的弹性轴套主体的结构示意图；
图 7为图 2中 A部分的局部放大图；
图 8为本发明实施例提供的弹性轴套主体的仰视示意图； 图 9为图 8中 B部分的局部放大图；
图 10为本发明实施例提供的弹性轴套主体的俯视示意图；
图 11为本发明实施例提供的弹性轴套的安装示意图。
上图 1-图 11中：
弹性轴套主体 1、 耐磨片容纳槽 11、 凹槽 12、 开口 13、 限位筋 14、 限位 凸台 15、 耐磨片 2、 储油槽 21、 定位凸起部 22、 弹性轴套安装孔八。 具体实施方式
本发明提供了一种弹性轴套， 实现了提高弹性轴套的使用寿命， 降低维护 成本的作用。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清 楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是 全部的实施例。基于本发明中的实施例， 本领域普通技术人员在没有做出创造 性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。
请参考图 1和图 2, 图 1为本发明实施例提供的弹性轴套的结构示意图； 图 2为本发明实施例提供的弹性轴套的剖视示意图。
本发明实施例提供了一种弹性轴套， 包括弹性轴套主体，还包括设置于弹 性轴套主体 1的内壁上的耐磨片 2; 耐磨片 2的内端面伸出弹性轴套主体 1的 内壁或与弹性轴套主体 1的内壁平行， 其中， 耐磨片 2的内端面为其朝向弹性 轴套主体 1轴线的面。
本发明实施例提供的弹性轴套，通过在弹性轴套主体 1的内壁上设置耐磨 片 2, 使得运动轴与耐磨片 2接触， 耐磨片 2的硬度高于弹性轴套主体 1 , 其 磨损量较小， 进而降低了弹性轴套的摩擦损失， 提高了弹性轴套的使用寿命， 降低其更换的频率， 进而降低维护成本。
如图 3所示， 为了进一步提高弹性轴套的使用寿命， 耐磨片 2的内端面上 设置有储油槽 21。 将弹性轴套安装在装置中后， 耐磨片 2与运动轴的外壁接 触， 润滑油储存在储油槽 21 , 对运动轴与耐磨片 2之间进行润滑， 进一步降 低了两者间的摩擦损失， 进一步的提高了本实施例提供的弹性轴套的使用寿 命， 并且提高了套设于本实施例提供的轴套中的运动轴的使用寿命。
储油槽 21的数量为多个， 且均勾分布于耐磨片 2的内端面上。 通过在耐 磨片 2上均匀设置多个储油槽 21 , 进一步提高润滑效果。
为了便于加工， 储油槽 21为弧形储油槽。 如图 4所示， 考虑到节约成本， 耐磨片 2的厚度不大， 进而使得弧形储油槽的深度不大，优选弧形储油槽的纵 截面为劣弧端。 也可以加工为方形储油槽、 三角形储油槽或半球槽等， 具体结 构不做限定且均在保护范围之内。
耐磨片 2的数量为多个，且沿弹性轴套主体 1的周向均匀分布。本实施例 中的耐磨片 2的数量为 3个， 沿弹性轴套主体 1的周向均匀分布，使 3个耐磨 片 2与运动轴接触后， 均勾的向运动轴施加支持力。也可以设置其他数量的耐 磨片 2, 如 4个或 5个。 还可以根据运动轴的轴向设置耐磨片 2的位置， 如运 动轴在水平放置时， 由于重力作用， 向下挤压的里较大。 将耐磨片 2不均匀的 设置于弹性轴套主体 1内壁上，在安装后，使耐磨片 2密集的一侧靠近地面设 置。
优选地， 耐磨片 2为金属片、 工程塑料片或金属塑料复合片。 也可以选用 其他硬度高的材料制作耐磨片 2, 仅需使其硬度大于弹性轴套主体 1的硬度即 可。
请参考图 5和图 6, 弹性轴套主体 1的内壁上设置有耐磨片容纳槽 11 ; 耐 磨片 2的外端面设置有定位凸起部 22, 耐磨片容纳槽 11的槽底面设置有与定 位凸起部 22配合的凹槽 12, 通过将定位凸起部 22嵌入凹槽 12, 使耐磨片 2 与弹性轴套主体 1连接， 并且限制耐磨片 2移动； 其中， 耐磨片 2的外端面为 其与弹性轴套主体 1连接的面。
如图 7所示， 为了提高连接效果， 定位凸起部 22具有直径大于其与耐磨 片 2连接端的部分，凹槽 12的槽面与定位凸起部 22的外壁贴合。如图 7所示， 定位凸起部 22包括椭球形部分和圓柱部分， 椭球形部分向耐磨片 2的外端面 的投影面积大于圓柱部分向耐磨片 2 的外端面的投影面积。 即在定位凸起部 22进入凹槽 12的过程中， 凹槽 12的开口与圓柱部分贴合， 需要通过弹性轴 套主体 1的弹性变形使得椭球形部分通过凹槽 12的开口进入凹槽 12的内部， 进一步的提高了定位凸起部 22与凹槽 12的连接稳固性。
也可以仅在弹性轴套主体 1 的内壁设置耐磨片容纳槽 11 ; 还可以将耐磨 片 2通过螺栓或胶水连接于弹性轴套主体 1的内壁上，在此不做具体限定且均 在保护范围之内。
耐磨片 2可以通过直接向耐磨片容纳槽 11注塑成型， 也可以将耐磨片 2 加工后将其嵌入耐磨片容纳槽 11。
为了便于安装，弹性轴套主体 1上设置有多个贯穿其内壁与外壁且沿其周 向均匀分布的开口 13; 开口 13的延伸方向与弹性轴套主体 1的轴向平行。 通 过设置开口 13 , 在弹性轴套的安装过程中， 对齐施加由外向内的挤压力， 使 其整体向内弹性变形，便于安装于承托结构的弹性轴套安装孔内，再通过其弹 性力， 使弹性轴套的外壁与承托结构的弹性轴套安装孔贴合， 完成安装。 在本 实施例中， 开口 13的数量为 3个， 且沿弹性轴套主体 1的周向均匀分布。 即 3个开口 13贯穿弹性轴套主体 1的内壁与外壁， 使得弹性轴套主体 1具有 3 个弧形片。
进一步的， 弹性轴套主体 1的外壁为齿形面， 其单个齿形的延伸方向与弹 性轴套主体 1的轴向平行。 由于设置了开口 13 , 将弹性轴套主体 1的一端分 割为多个弧形片，在运动轴膨月长过程中， 弧形片变形使其外壁的齿形面上设置 的齿形相互靠近， 达到弧形面的弧度变形， 进一步的提高了弹性轴套主体 1 的弹性变形能力。
如图 8和图 9所示， 优选地， 相邻两个齿形的中心线的第一齿形角 b为 6 。 ± 1。 ， 开口 13的中心线与与其相邻的齿形的中心线的第二齿形角 d为 6。 ± 1。 ， 相邻两个齿形的齿形夹角 c为 90。 ± 1。 。
弹性轴套主体 1 的外壁上设置有多个沿其周向均勾分布的限位筋 14, 限 位筋 14的延伸方向与弹性轴套主体 1的轴向平行。 通过增加限位筋 14, 有效 的控制了弧形片的弧度变形量。 如图 10所示， 限位筋 14的夹角 a为 120。 士 5° 。
为了使限位筋 14最大限度的达到限制变形量的作用， 限位筋 14与开口 13的数量相同， 且限位筋 14与开口 13间隔布置。 即开口 13将弹性轴套主体 1的一端分割为多个弧形片， 弧形片的中间设置有限位筋 14。
在另一种实施例中， 弹性轴套主体 1的外壁为齿形面， 其单个齿形的延伸 方向与弹性轴套主体 1的轴向平行，以提高弹性轴套与承托机构的弹性轴套安 装孔周向运动的摩擦力，提高本实施例提供的弹性轴套相对于承托机构的固定 稳定性。
优选地， 弹性轴套主体 1为塑料轴套主体或橡胶轴套主体。
如图 6和图 11所示， 弹性轴套主体 1的外壁上设置有用于与承托结构轴 向固定的限位凸台 15。 在将本发明实施例提供的弹性轴套安装于承托机构上 后， 弹性轴套主体 1的限位凸台 15与承托结构的弹性轴套安装孔 A的端面接 触， 有效限制了弹性轴套相对于承托机构的轴向移动。
优选地， 限位凸台 15设置于所述限位筋 14的一端。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本 发明。 对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见 的， 本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下， 在 其它实施例中实现。 因此， 本发明将不会被限制于本文所示的这些实施例， 而 是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims

权 利 要 求
1、 一种弹性轴套， 包括弹性轴套主体， 其特征在于， 还包括设置于所述 弹性轴套主体（1 ) 的内壁上的耐磨片 （2);
所述耐磨片 （2)的内端面伸出所述弹性轴套主体 ( 1 )的内壁或与所述弹 性轴套主体（1 )的内壁平行， 其中， 所述耐磨片 （2)的内端面为其朝向所述 弹性轴套主体（ 1 )轴线的面。
2、 根据权利要求 1所述的弹性轴套， 其特征在于， 所述耐磨片 （2)的内 端面上设置有储油槽（21)。
3、 根据权利要求 2所述的弹性轴套， 其特征在于， 所述储油槽（21 ) 的 数量为多个， 且均匀分布于所述耐磨片 （2) 的内端面上； 所述储油槽（21 ) 为弧形储油槽。
4、 根据权利要求 1所述的弹性轴套， 其特征在于， 所述耐磨片 （2)的数 量为多个， 且沿所述弹性轴套主体（1 ) 的周向均勾分布。
5、 根据权利要求 1所述的弹性轴套， 其特征在于， 所述耐磨片 （2)为金 属片、 工程塑料片或金属塑料复合片。
6、根据权利要求 1所述的弹性轴套，其特征在于，所述弹性轴套主体（ 1 ) 的内壁上设置有耐磨片容纳槽 ( 11 );
所述耐磨片（2)的外端面设置有定位凸起部（22),所述耐磨片容纳槽（ 11 ) 的槽底面设置有与所述定位凸起部 ( 22 ) 配合的凹槽 ( 12 );
其中， 所述耐磨片（2)的外端面为其与所述弹性轴套主体（1 )连接的面。
7、 根据权利要求 1-6任一项所述的弹性轴套， 其特征在于， 所述弹性轴 套主体（ 1 )上设置有多个贯穿其内壁与外壁且沿其周向均匀分布的开口（ 13 ); 所述开口 （13) 的延伸方向与所述弹性轴套主体（1 ) 的轴向平行。
8、根据权利要求 7所述的弹性轴套，其特征在于，所述弹性轴套主体 ( 1 ) 的外壁为齿形面， 其单个齿形的延伸方向与所述弹性轴套主体（1 ) 的轴向平 行。
9、根据权利要求 8所述的弹性轴套，其特征在于，所述弹性轴套主体（ 1 ) 的外壁上设置有多个沿其周向均匀分布的限位筋 （14 ), 所述限位筋 （14 ) 的 延伸方向与所述弹性轴套主体（1 ) 的轴向平行。
10、 根据权利要求 9所述的弹性轴套， 其特征在于， 所述限位筋（14 )与 所述开口 （13 )的数量相同， 且所述限位筋（ 14 )与所述开口 （13 )间隔布置。
11、 根据权利要求 1-6任一项所述的弹性轴套， 其特征在于， 所述弹性轴 套主体（ 1 )的外壁为齿形面，其单个齿形的延伸方向与所述弹性轴套主体（ 1 ) 的轴向平行。
12、根据权利要求 1所述的弹性轴套，其特征在于，所述弹性轴套主体（ 1 ) 为塑料轴套主体或橡胶轴套主体。
13、根据权利要求 1所述的弹性轴套，其特征在于，所述弹性轴套主体（ 1 ) 的外壁上设置有用于与承托结构轴向固定的限位凸台 ( 15 )。
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CN203176164U (zh) * 2013-03-29 2013-09-04 浙江长盛滑动轴承股份有限公司 弹性轴套

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JPH0444895Y2 (zh) * 1986-03-27 1992-10-22
US5518318A (en) * 1988-04-15 1996-05-21 The Bf Goodrich Company Bearing assembly
JPH02116023U (zh) * 1989-03-03 1990-09-17
JPH03244821A (ja) * 1990-02-23 1991-10-31 Toshiba Corp 水中軸受装置
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