WO2024082092A1 - 轴承圈和滚动轴承 - Google Patents

轴承圈和滚动轴承 Download PDF

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Publication number
WO2024082092A1
WO2024082092A1 PCT/CN2022/125674 CN2022125674W WO2024082092A1 WO 2024082092 A1 WO2024082092 A1 WO 2024082092A1 CN 2022125674 W CN2022125674 W CN 2022125674W WO 2024082092 A1 WO2024082092 A1 WO 2024082092A1
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Prior art keywords
bearing ring
bearing
inner ring
bolt
loosening
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PCT/CN2022/125674
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English (en)
French (fr)
Inventor
霍华
王为华
程涛
司德纯
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舍弗勒技术股份两合公司
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Priority to PCT/CN2022/125674 priority Critical patent/WO2024082092A1/zh
Publication of WO2024082092A1 publication Critical patent/WO2024082092A1/zh

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    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings

Definitions

  • the present invention relates to rolling bearings, and more particularly to bearing rings for rolling bearings.
  • a split bearing has a bearing inner ring divided into two halves and a bearing outer ring divided into two halves.
  • the inner ring and outer ring in a non-split bearing can be cut into two parts.
  • the two parts of the outer ring can be directly connected and fixed by bolts at the split position.
  • the two parts of the inner ring cannot be directly connected and fixed by bolts.
  • the axial width of the inner ring of the bearing can be widened so that the inner ring is wider than the outer ring, so that the inner ring can be locked by a locking ring at the widened part of the inner ring.
  • a bearing ring comprising: a plurality of bearing ring segments, which are configured to be assembled into a ring shape, wherein each bearing ring segment comprises: a connecting portion located on the axial end face of the bearing ring segment and adjacent to the circumferential end face of the bearing ring segment, and at least one fixing hole located on the connecting portion and extending from the connecting portion; a plurality of connecting plates, wherein each connecting plate comprises a plurality of through holes; and a plurality of bolts, wherein when the plurality of bearing ring segments are assembled with each other, each connecting plate is configured to be arranged on the adjacent connecting portions of two adjacent bearing ring segments, so that the plurality of through holes of the connecting plate respectively correspond to the fixing holes of the two adjacent bearing ring segments, the through holes and the corresponding fixing holes extend obliquely to the axial direction of the bearing ring, and each bolt is configured to be inserted into the through hole of the connecting plate and the fixing hole of the corresponding bearing ring segment to connect the
  • an embodiment of the present invention provides a bearing ring with a split structure, which realizes the connection and fixation of the bearing ring segments at its axial end face through connecting plates and bolts. Therefore, the bearing ring according to the embodiment of the present invention can realize the rapid installation and removal of the bearing ring with a split structure without sacrificing the bearing load capacity.
  • the fixing holes in the bearing ring segments to be inclined relative to the axial direction of the bearing ring, the bolts can be inserted into the fixing holes at an angle, and better shear resistance can be provided when connecting the various bearing ring segments.
  • connection portion of each bearing ring segment is configured as a connection groove recessed from the axial end surface of the bearing ring segment, and each connection piece is configured to be arranged in the continuous connection grooves of two adjacent bearing ring segments.
  • the fixing hole of each bearing ring segment is configured to extend obliquely from the connecting groove in a direction gradually away from the circumferential end surface of the bearing ring segment.
  • each bearing ring segment is configured in an arc shape
  • each connecting piece is configured in an arc shape.
  • the bearing ring further comprises an anti-loosening pin, wherein the anti-loosening pin is configured to be connected to a bolt, wherein the connecting piece comprises an anti-loosening groove connected to its through hole, and the anti-loosening pin is configured such that when the bolt connected with the anti-loosening pin is inserted into the through hole of the connecting piece and the fixing hole of the corresponding bearing ring section, at least one anti-loosening pin can be bent and at least partially accommodated in the anti-loosening groove of the connecting piece.
  • the bolt includes a mounting groove located on the head thereof and extending in the axial direction of the bolt, and the anti-loosening pin is configured to be detachably connected to the mounting groove of the bolt.
  • the mounting groove and the anti-loosening pin have matching wedge shapes, and the wedge shape of the mounting groove is configured to prevent the anti-loosening pin from moving away from the connecting piece along the axial direction of the bolt.
  • the bearing ring includes two bearing ring segments and two connecting pieces.
  • One aspect of the present invention provides a rolling bearing including a bearing ring according to an embodiment of the present invention.
  • the bearing ring is an inner ring of a rolling bearing.
  • FIG. 1 is a schematic diagram of a rolling bearing according to some embodiments of the present invention.
  • FIG. 2 is a schematic diagram of a bearing ring according to some embodiments of the present invention.
  • FIG. 3 is a schematic top view of a bearing ring according to some embodiments of the present invention.
  • FIG. 4 is a partial enlarged schematic diagram of portion A in FIG. 2 .
  • FIG5 is a schematic cross-sectional view taken along line B-B in FIG2.
  • FIG. 6 is a schematic diagram of a connecting sheet according to some embodiments of the present invention.
  • FIG7 is a schematic cross-sectional view taken along line D-D in FIG6.
  • FIG. 8 is a partial enlarged schematic diagram of portion C in FIG. 6 .
  • FIG. 9 is a schematic side view of a bolt according to some embodiments of the present invention.
  • FIG. 10 is a bottom view of a bolt according to some embodiments of the present invention.
  • FIG. 11 is a schematic diagram of an anti-loosening pin according to some embodiments of the present invention.
  • the present invention provides a bearing ring and a rolling bearing with a split structure.
  • exemplary embodiments of the present invention are described with reference to the accompanying drawings. It should be understood that the drawings only show certain embodiments of the present invention, and the scope of the present invention should be determined according to the claims.
  • FIG1 is a schematic diagram of a rolling bearing according to some embodiments of the present invention.
  • the rolling bearing includes an inner ring 1, an outer ring 2, and a plurality of rolling elements 3.
  • the outer ring 2 may include a radial inner raceway on its radial inner surface.
  • the inner ring 1 may include a radial outer raceway on its radial outer surface.
  • the rolling element 3 may roll between the radial inner raceway and the radial outer raceway.
  • the inner ring 1 has a split structure according to an embodiment of the present invention, that is, it can be used as a bearing ring protected by the present invention.
  • the present invention is not limited thereto.
  • the outer ring 2 may also have a split structure according to an embodiment of the present invention, that is, it can be used as a bearing ring protected by the present invention.
  • the outer ring 2 may be connected and fixed by the connection method provided by the present invention, or may be connected and fixed by other existing connection methods, such as directly connecting and fixing the two parts of the outer ring by bolts on the radial outer side of the outer ring.
  • Fig. 2 is a schematic diagram of a bearing ring according to some embodiments of the present invention.
  • Fig. 3 is a top view schematic diagram of a bearing ring according to some embodiments of the present invention.
  • Fig. 4 is a partial enlarged schematic diagram of part A in Fig. 2.
  • Fig. 5 is a cross-sectional schematic diagram obtained along the line B-B in Fig. 2.
  • the inner ring 1 includes two inner ring segments 10.
  • the inner ring segment 10 can be used as the bearing ring segment claimed by the present invention.
  • the two inner ring segments 10 can be assembled into an annular shape.
  • Each inner ring segment 10 has a substantially arc shape when observed along its axial direction, as shown in FIG2 .
  • Each inner ring segment 10 has two circumferential end faces and two axial end faces. When the two inner ring segments 10 are assembled into an annular shape, the circumferential end faces of the inner ring segments 10 are respectively opposite to each other.
  • the inner ring segment 10 can be formed by cutting a complete annular inner ring.
  • a plurality of inner ring segments 10 have the same shape.
  • the present invention is not limited thereto.
  • a plurality of inner ring segments 10 can have different shapes, for example, having different curvatures when observed along the axial direction of the inner ring segment.
  • the axial direction of the inner ring is the same as the axial direction of the inner ring segment
  • the circumferential direction of the inner ring is the same as the circumferential direction of the inner ring segment.
  • the inner ring segment 10 includes a connecting portion located on its axial end surface and adjacent to its circumferential end surface for connecting the inner ring segments 10.
  • the connecting portion of the inner ring segment 10 is configured as a connecting groove 11.
  • the connecting groove 11 is formed to be recessed from the axial end surface of the inner ring segment 10.
  • the inner ring segment 10 is provided with two connecting grooves 11 on its axial end surface, preferably on each axial end surface.
  • the two connecting grooves 11 may be spaced apart in the circumferential direction of the inner ring segment 10 and are respectively located adjacent to the circumferential end surface of the inner ring segment 10.
  • the connecting groove 11 is configured in an arc shape when viewed in the axial direction of the inner ring segment 10.
  • the inner ring segment 10 further includes one or more fixing holes 12 located in the connecting groove 11 and extending from the connecting groove 11. In some embodiments, when the inner ring segment 10 includes a plurality of fixing holes 12, the plurality of fixing holes 12 are evenly spaced. In some embodiments, when the inner ring segment 10 includes a plurality of fixing holes 12, the plurality of fixing holes 12 are spaced along an arc when viewed along the axial direction of the inner ring segment 10. In some embodiments, when two inner ring segments 10 are joined together, the plurality of adjacent fixing holes 12 on the two inner ring segments 10 are spaced along an arc.
  • the inner ring 1 further includes two connecting plates 20 and a plurality of bolts 30 for connecting and fixing the inner ring segments 10 .
  • Fig. 6 is a schematic diagram of a connecting piece according to some embodiments of the present invention.
  • Fig. 7 is a schematic cross-sectional diagram taken along line D-D in Fig. 6.
  • Fig. 8 is a partially enlarged schematic diagram of part C in Fig. 7.
  • Fig. 9 is a side schematic diagram of a bolt according to some embodiments of the present invention.
  • Fig. 10 is a bottom schematic diagram of a bolt according to some embodiments of the present invention.
  • the connecting piece 20 is configured to be arc-shaped, that is, has a substantially arc-shaped shape, as shown in Figure 7.
  • the bolt 30 includes a head 31 and a rod 32, as shown in Figure 9.
  • the connecting piece 20 includes a plurality of through holes 21, as shown in FIG6.
  • the plurality of through holes 21 of the connecting piece 20 may correspond to the fixing holes 12 of the two inner ring segments 10, respectively, as shown in FIG5.
  • the bolts 30 may be inserted into the through holes 21 of the connecting piece 20 and the fixing holes 12 of the inner ring segments 10 in sequence.
  • the size and number of the fixing holes 12 and the through holes 21 may be selected according to the size, type, etc. of the bearing.
  • a plurality of bolts 30 may connect one connecting piece 20 to two inner ring segments 10, respectively, on the two inner ring segments 10, as shown in FIG1.
  • the inner ring 1 is connected and fixed.
  • the connecting groove 11 and the connecting piece 20 By arranging the connecting groove 11 and the connecting piece 20 into an arc shape, more bolts 30 can be arranged at the adjacent connecting grooves 11 of the two inner ring segments 10, thereby reducing the requirements for the selection of bolts.
  • the plurality of fixing holes 12 By arranging the plurality of fixing holes 12 to be distributed along the arc line, the force of the plurality of bolts 30 can be made more uniform, thereby increasing the service life and preload of the inner ring 1.
  • the diameter and length of the bolt 30 can be selected according to the size and type of the bearing.
  • the two connected inner ring segments 10 of the inner ring 1 have a predetermined gap between their adjacent circumferential end faces.
  • each inner ring segment 10 can be constrained from the radial outside by a ferrule and arranged with a predetermined gap between the adjacent circumferential end faces of each inner ring segment 10, and then each inner ring segment 10 is connected and fixed to each other by a connecting piece 20 and a bolt 30.
  • a preload can be provided in the inner ring 1 to achieve a tight fit with a shaft or other components.
  • the fixing hole 12 and the corresponding through hole 21 are configured to extend obliquely relative to the axial direction of the inner ring 1.
  • the bolt 30 can be inserted into the through hole 21 and the fixing hole 12 obliquely, and better shear resistance is provided when connecting the respective inner ring segments 10.
  • the fixing hole 12 extends obliquely from the connecting groove 11 in a direction gradually away from the circumferential end face of the inner ring segment 10. In this case, as shown in FIG.
  • the through hole 21 extends obliquely from the surface of the connecting piece 20 facing away from the connecting groove 11 in a direction gradually away from the circumferential end face of the inner ring segment 10.
  • the bolt 30 on one inner ring segment 10 is inclined toward the other inner ring segment 10, that is, the head 31 of the bolt 30 on one inner ring segment 10 is closer to the other inner ring segment 10 than the rod 32 thereof, and vice versa.
  • the bolt 30 can provide a greater preload force when connecting the inner ring segments 10.
  • the inclination angle of the fixing hole 12 can be selected according to the size and type of the bearing.
  • FIG. 11 is a schematic diagram of an anti-loosening pin according to some embodiments of the present invention.
  • FIG. 12 is a partial schematic diagram of an inner ring according to some embodiments of the present invention.
  • FIG. 13 is a schematic diagram of a bolt and an anti-loosening pin according to some embodiments of the present invention.
  • the inner ring 1 further includes an anti-loosening pin 40.
  • the anti-loosening pin 40 is configured to be connected to the bolt 30 to limit the rotation of the bolt 30.
  • the anti-loosening pin 40 is configured to be detachably connected to the bolt 30.
  • the bolt 30 includes a mounting groove 33 for connecting the anti-loosening pin 40.
  • the mounting groove 33 is formed on the head 31 of the bolt 30 and extends in the axial direction of the bolt 30.
  • the anti-loosening pin 40 may be configured to be detachably connected to the mounting groove 33 of the bolt 30.
  • the anti-loosening pin 40 has a wedge shape
  • the mounting groove 33 has a wedge shape matching the anti-loosening pin 40, that is, the mounting groove 33 gradually narrows in a direction away from the rod portion 32.
  • the wedge shape of the mounting groove 33 is configured to prevent the anti-loosening pin 40 from moving away from the connecting piece 20 in the axial direction of the bolt 30.
  • the connecting piece 20 includes an anti-loosening groove 22 to partially accommodate the anti-loosening pin 40.
  • the anti-loosening groove 22 of the connecting piece 20 is communicated with the through hole 21. It should be noted that only two anti-loosening grooves 22 are shown by way of example in the figure. However, the present invention is not limited thereto. The number of anti-loosening grooves 22 can be set according to specific needs.
  • the anti-loosening pin 40 can be inserted into the installation groove 33 from below the head 31 of the bolt 30 and protrude from the upper opening of the installation groove 33. Afterwards, the bolt 30 connected with the anti-loosening pin 40 can be inserted into the through hole 21 of the connecting piece 20 and the fixing hole 12 of the inner ring segment 10, whereby the anti-loosening pin 40 is inserted into the through hole 21 of the connecting piece 20 together with the head 31 of the bolt 30. After the bolt 30 is screwed into place, the anti-loosening pin 40 can be bent and at least partially accommodated in the anti-loosening groove 22 of the connecting piece 20.
  • the portion can be removed by grinding or the like.
  • the bent anti-loosening pin 40 can be straightened, whereby the bolt 30 can be loosened so that the inner ring segment 10 and the connecting piece 20 can be separated.
  • the inner ring 2 includes two inner ring segments 10.
  • the present invention is not limited thereto.
  • the inner ring 2 may also include three or more inner ring segments, and these segments may be assembled into a ring shape.
  • connection portion of the inner ring segment 10 is configured as a connection groove.
  • the connection portion of the inner ring segment 10 can also be configured as a flat plane or a protrusion, etc., and the fixing hole 12 can be configured as an extension of the connection portion of the inner ring segment 10.
  • the plurality of fixing holes 12 are distributed at uniform intervals.
  • the present invention is not limited thereto.
  • the plurality of fixing holes 12 may also be distributed at non-uniform intervals.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

一种轴承圈及包括该轴承圈的滚动轴承，轴承圈(1)包括：多个轴承圈部段(10)、多个连接片(20)及多个螺栓(30)，多个轴承圈部段(10)构造成能够拼合成环形，其中每个轴承圈部段(10)包括：位于轴承圈部段(10)的轴向端面上并且邻近轴承圈部段(10)的周向端面的连接部，以及位于连接部上并且从连接部延伸的至少一个固定孔(12)，每个连接片(20)包括多个通孔(21)，当多个轴承圈部段(10)彼此拼合时，每个连接片(20)构造成能够布置在相邻两个轴承圈部段(10)的相邻连接部上，使得连接片(20)的多个通孔(21)分别与相邻两个轴承圈部段(10)的固定孔(12)相对应，通孔(21)与对应的固定孔(12)倾斜于轴承圈的轴向方向延伸，并且每个螺栓(30)构造成能够插入到连接片(20)的通孔(21)和轴承圈部段(10)的对应的固定孔(12)中，以将多个轴承圈部段(10)彼此连接。该轴承圈改善了轴承圈部段的连接性能。

Description

轴承圈和滚动轴承 技术领域
本发明涉及滚动轴承。更具体地，本发明涉及用于滚动轴承的轴承圈。
背景技术
在矿山水泥等行业中，诸如提升机和皮带机等大型设备在发生轴承损坏而停机维修时，拆卸旧轴承和更换新轴承比较耗费时间，会造成停产损失较大。如果采用剖分轴承，则可以缩短拆卸和更换轴承所需要的维修时间。
剖分轴承具有分成两半的轴承内圈和分成两半的轴承外圈。例如，可以将非剖分结构的轴承中的内圈和外圈切割成两部分。对于外圈，可以直接在剖分位置处通过螺栓将外圈的两部分直接连接固定。对于内圈，则不能直接通过螺栓将内圈的两部分直接连接固定。在现有的一种固定方式中，可以加宽轴承内圈的轴向宽度，使内圈比外圈更宽，从而可以在内圈的加宽部分通过锁紧环来锁紧内圈。在这种情况下，与非剖分结构的轴承相比，这种剖分轴承虽然可以很大程度上保持承载能力，但是由于内圈比外圈更宽，需要改变周边结构，从而适用范围有限。在现有的另一种固定方式中，为保持宽度相对于非剖分结构的轴承不变，可以在剖分轴承中减小滚动体的尺寸以实现对剖分内圈的连接固定。在这种情况下，与非剖分结构的轴承相比，这种剖分轴承的承载能力和使用寿命显著降低。
为此，需要一种能够改善连接性能的具有剖分结构的轴承圈和滚动轴承。
发明内容
本发明的一个目的是提供能够改善连接性能的用于具有剖分结构的滚动轴承的轴承圈和滚动轴承。本发明的另一目的是提供能够兼顾尺寸和承载能力的具有剖分结构的轴承圈和滚动轴承。本发明的另一目的是提供能 够不改变轴承的轴向宽度的具有剖分结构的轴承圈和滚动轴承。本发明的另一目的是提供能够保持轴承的承载能力的具有剖分结构的轴承圈和滚动轴承。
本发明的一个方面提供一种轴承圈，包括：多个轴承圈部段，其构造成能够拼合成环形，其中每个轴承圈部段包括：位于轴承圈部段的轴向端面上并且邻近轴承圈部段的周向端面的连接部，以及位于连接部上并且从连接部延伸的至少一个固定孔；多个连接片，其中，每个连接片包括多个通孔；和多个螺栓，其中，当多个轴承圈部段彼此拼合时，每个连接片构造成能够布置在相邻两个轴承圈部段的相邻连接部上，使得连接片的多个通孔分别与相邻两个轴承圈部段的固定孔相对应，通孔与对应的固定孔倾斜于轴承圈的轴向方向延伸，并且每个螺栓构造成能够插入到连接片的通孔和相应轴承圈部段的固定孔中，以将多个轴承圈部段彼此连接。由此，本发明的实施例提供具有剖分结构的轴承圈，该轴承圈在其轴向端面处通过连接片和螺栓来实现轴承圈部段的连接固定。因此，根据本发明的实施例的轴承圈可以在不牺牲轴承的承载能力的情况下，实现具有剖分结构的轴承圈的快速安装和拆卸。通过将轴承圈部段中的固定孔设计成相对于轴承圈的轴向方向倾斜，螺栓可以倾斜地插入到固定孔中，并且在连接各个轴承圈部段时可以提供更好的抗剪性。
根据本发明的某些实施例，每个轴承圈部段的连接部构造成从轴承圈部段的轴向端面凹入的连接槽，并且其中，每个连接片构造成能够布置在两个相邻轴承圈部段的接续的连接槽中。通过在凹入的连接槽中布置连接片，根据本发明的实施例的轴承圈可以在不加宽轴承圈宽度的情况下，实现具有剖分结构的轴承圈的快速安装和拆卸，从而可以提供更广泛的安装适用性。
根据本发明的某些实施例，每个轴承圈部段的固定孔构造成从连接槽沿着逐渐远离轴承圈部段的周向端面的方向倾斜地延伸。通过将彼此连接的两个轴承圈部段的相邻连接槽中的固定孔设置成沿着逐渐远离轴承圈部段的周向端面的方向倾斜地延伸，布置在固定孔中的螺栓可以在连接各个轴承圈部段时提供更大的预紧力。
根据本发明的某些实施例，每个轴承圈部段的连接槽构造成弧形，并且每个连接片构造成弧形。通过将连接槽和连接片设置成弧形，可以在两个轴承圈部段的相邻连接槽处布置更多的螺栓，从而可以降低对螺栓的选择要求。
根据本发明的某些实施例，轴承圈还包括防松销，其中，防松销构造成能够连接到螺栓，其中，连接片包括与其通孔连通的防松槽，并且防松销构造成当连接有防松销的螺栓被插入到连接片的通孔和相应轴承圈部段的固定孔中时，至少一个防松销能够经弯折而至少部分地容纳在连接片的防松槽中。通过提供包括防松销的防松结构，可以防止在轴承圈的各个轴承圈部段组装后螺栓松动而影响轴承圈的安装和工作。
根据本发明的某些实施例，螺栓包括位于其头部上且沿螺栓的轴向方向延伸的安装槽，并且防松销构造成能够可拆卸地连接到螺栓的安装槽中。通过在螺栓的头部设置用于防松销的安装槽，可以可拆卸地连接防松销，实现快速安装和拆卸。
根据本发明的某些实施例，安装槽和防松销具有相匹配的楔形形状，并且安装槽的楔形形状构造成能防止防松销沿螺栓的轴向远离连接片。通过将防松销和防松槽设置成楔形形状，可以便于安装防松销，提高安装效率。
根据本发明的某些实施例，轴承圈包括两个轴承圈部段和两个连接片。
本发明的一个方面提供一种滚动轴承，包括根据本发明的实施例的轴承圈。
根据本发明的某些实施例，该轴承圈是滚动轴承的内圈。
附图说明
图1是根据本发明的某些实施例的滚动轴承的示意图。
图2是根据本发明的某些实施例的轴承圈的示意图。
图3是根据本发明的某些实施例的轴承圈的俯视示意图。
图4是图2中A部分的局部放大示意图。
图5是沿图2中线B-B所获得的截面示意图。
图6是根据本发明的某些实施例的连接片的示意图。
图7是沿图6中线D-D所获得的截面示意图。
图8是图6中C部分的局部放大示意图。
图9是根据本发明的某些实施例的螺栓的侧视示意图。
图10是根据本发明的某些实施例的螺栓的仰视示意图。
图11是根据本发明的某些实施例的防松销的示意图。
具体实施方式
下文中，参照附图描述本发明的实施例。下面的详细描述和附图用于示例性地说明本发明的原理，本发明不限于所描述的优选实施例，本发明的范围由权利要求书限定。现参考示例性的实施方式详细描述本发明，一些实施例图示在附图中。以下描述参考附图进行，除非另有表示，否则在不同附图中的相同附图标记代表相同或类似的元件。以下示例性实施方式中描述的方案不代表本发明的所有方案。相反，这些方案仅是所附权利要求中涉及的本发明的各个方面的系统和方法的示例。
本发明提供一种具有剖分结构的轴承圈和滚动轴承。下面，参考附图来描述本发明的示例性实施例。应当理解，附图中仅示出本发明的某些实施例，本发明的范围应当根据权利要求来确定。
图1是根据本发明的某些实施例的滚动轴承的示意图。如图1所示，滚动轴承包括内圈1、外圈2和多个滚动体3。外圈2可以包括位于其径向内表面上的径向内滚道。内圈1可以包括位于其径向外表面上的径向外滚道。滚动体3可以在径向内滚道和径向外滚道之间滚动。示例性地，内圈1具有根据本发明的实施例的剖分结构，即可以作为本发明要求保护的轴承圈。但是，本发明不限于此。外圈2也可以具有根据本发明的实施例的剖分结构，即可以作为本发明要求保护的轴承圈。当外圈2采用剖分结构时，外圈2可以通过本发明提供的连接方式来连接固定，或者可以采用现有的其他连接方式来连接固定，例如在外圈的径向外侧通过螺栓将外圈的两部分直接连接固定。
图2是根据本发明的某些实施例的轴承圈的示意图。图3是根据本发明的某些实施例的轴承圈的俯视示意图。图4是图2中A部分的局部放大示意图。图5是沿图2中线B-B所获得的截面示意图。
根据本发明的某些实施例，如图2所示，内圈1包括两个内圈部段10。示例性地，内圈部段10可以作为本发明要求保护的轴承圈部段。这两个内圈部段10可以拼合成环形。每个内圈部段10沿其轴向方向观察具有大致弧形形状，例如图2所示。每个内圈部段10具有两个周向端面和两个轴向端面。当两个内圈部段10拼合成环形时，内圈部段10的周向端面分别彼此相对。在一些实施例中，内圈部段10可以由完整的环形内圈经切割等形成。在示例性实施例中，多个内圈部段10具有相同的形状。但是，本发明不限于此。在一些实施例中，多个内圈部段10可以具有不同的形状，例如沿内圈部段的轴向方向观察具有不同的弧度等。在本文中，内圈的轴向方向与内圈部段的轴向方向相同，并且内圈的周向方向与内圈部段的周向方向相同。
根据本发明的某些实施例，内圈部段10包括位于其轴向端面上并且邻近其周向端面的连接部，以用于连接各个内圈部段10。在示例性实施例中，内圈部段10的连接部构造成连接槽11。连接槽11形成为从内圈部段10的轴向端面凹入。在一些实施例中，内圈部段10在其轴向端面上，优选为在每个轴向端面上，设置两个连接槽11。这两个连接槽11可以沿内圈部段10的周向方向间隔开并且分别位于邻近内圈部段10的周向端面处。在示例性实施例中，沿内圈部段10的轴向方向观察，连接槽11构造成弧形。
根据本发明的某些实施例，内圈部段10还包括位于连接槽11中并且从连接槽11延伸的一个或多个固定孔12。在一些实施例中，当内圈部段10包括多个固定孔12时，多个固定孔12以均匀间隔分布。在一些实施例中，当内圈部段10包括多个固定孔12时，沿内圈部段10的轴向方向观察，多个固定孔12沿弧线间隔分布。在一些实施例中，当两个内圈部段10彼此拼合时，这两个内圈部段10上的相邻的多个固定孔12沿弧线间隔分布。
根据本发明的某些实施例，如图2所示，内圈1还包括两个连接片20和多个螺栓30，用于连接和固定各个内圈部段10。
图6是根据本发明的某些实施例的连接片的示意图。图7是沿图6中线D-D所获得的截面示意图。图8是图7中C部分的局部放大示意图。图9是根据本发明的某些实施例的螺栓的侧视示意图。图10是根据本发明的某些实施例的螺栓的仰视示意图。
在示例性实施例中，连接片20构造成弧形，即具有大致弧形形状，如图7所示。在一些实施例中，螺栓30包括头部31和杆部32，如图9所示。当两个内圈部段10彼此拼合时，如图2和图5所示，连接片20可以布置在两个内圈部段10的接续的连接槽11中。
根据本发明的某些实施例，连接片20包括多个通孔21，如图6所示。当两个内圈部段10彼此拼合并且连接片20布置在两个接续的连接槽11中时，沿内圈1的轴向方向观察，连接片20的多个通孔21可以分别与两个内圈部段10的固定孔12相对应，如图5所示。由此，螺栓30可以依次插入到连接片20的通孔21和内圈部段10的固定孔12中。固定孔12和通孔21的大小和数量可以根据轴承的尺寸、类型等选择。当两个内圈部段10彼此拼合时，在两个内圈部段10的接续的连接槽11处(即在一个连接位置处)，多个螺栓30可以分别在两个内圈部段10上将一个连接片20与两个内圈部段10连接，如图1所示。当两个内圈部段10在两个连接位置处通过两个连接片20和多个螺栓30分别连接时，内圈1完成连接固定。
通过将连接槽11和连接片20设置成弧形，可以在两个内圈部段10的相邻连接槽11处布置更多的螺栓30，从而可以降低对螺栓的选择要求。通过将多个固定孔12设置成沿弧线分布，可以使多个螺栓30的受力更均匀，从而可以提高内圈1的使用寿命和预紧力。螺栓30的直径和长度可以根据轴承的尺寸、类型等选择。
在一些实施例中，内圈1的经连接的两个内圈部段10在其相邻周向端面之间具有预定间隙。在一些实施例中，可以通过套圈从径向外侧约束各个内圈部段10并且使各个内圈部段10的相邻周向端面之间以预定间隙 布置，然后再通过连接片20和螺栓30将各个内圈部段10彼此连接固定。通过使内圈1的各个内圈部段10在其相邻周向端面之间保持预定间隙，可以在内圈1中提供预紧力，以实现与轴等部件的紧配合。
在示例性实施例中，固定孔12和对应的通孔21构造成相对于内圈1的轴向方向倾斜地延伸。通过将内圈部段10中的固定孔12和连接片20的通孔21设计成相对于内圈1的轴向方向倾斜，螺栓30可以倾斜地插入到通孔21和固定孔12中，并且在连接各个内圈部段10时提供更好的抗剪性。在一些实施例中，如图5所示，固定孔12从连接槽11沿着逐渐远离内圈部段10的周向端面的方向倾斜地延伸。在这种情况下，如图7所示，通孔21从连接片20的背对连接槽11的表面沿着逐渐远离内圈部段10的周向端面的方向倾斜地延伸。由此，在两个内圈部段10的接续的连接槽11处，位于一个内圈部段10上的螺栓30朝向另一内圈部段10倾斜，即位于一个内圈部段10上的螺栓30的头部31相比于其杆部32更靠近另一内圈部段10，反之亦然。由此，螺栓30可以在连接各个内圈部段10时提供更大的预紧力。固定孔12的倾斜角度可以根据轴承的尺寸、类型等选择。
为防止在内圈1的各个内圈部段10组装后螺栓30松动而影响内圈1的安装和工作，本发明还可以提供防松结构。图11是根据本发明的某些实施例的防松销的示意图。图12是根据本发明的某些实施例的内圈的部分示意图。图13是根据本发明的某些实施例的螺栓和防松销的示意图。
根据本发明的某些实施例，内圈1还包括防松销40。防松销40构造成能够连接到螺栓30，以限制螺栓30的旋转。在一些实施例中，防松销40构造成能够可拆卸地连接到螺栓30。
在示例性实施例中，螺栓30包括用于连接防松销40的安装槽33。在一些实施例中，安装槽33形成于螺栓30的头部31上，并且沿螺栓30的轴向方向延伸。防松销40可以构造成可拆卸地连接到螺栓30的安装槽33。在示例性实施例中，防松销40具有楔形形状，并且安装槽33具有与防松销40相匹配的楔形形状，即安装槽33沿远离杆部32的方向逐渐变窄。安装槽33的楔形形状构造成能防止防松销40沿螺栓30的轴向远离连 接片20。
在示例性实施例中，连接片20包括防松槽22，以部分地容纳防松销40。连接片20的防松槽22与通孔21连通。应当注意，图中仅示例性地示出两个防松槽22。但是，本发明不限于此。防松槽22的数量可以根据具体需要而设置。
在安装过程中，防松销40可以从螺栓30的头部31下方插入到安装槽33中，并从安装槽33的上部开口伸出。之后，连接有防松销40的螺栓30可以被插入到连接片20的通孔21和内圈部段10的固定孔12中，由此防松销40与螺栓30的头部31一起被插入到连接片20的通孔21中。在螺栓30被旋拧到位后，防松销40可以经弯折而至少部分地容纳在连接片20的防松槽22中。在安装完成后，如果防松销40存在从连接片20突出的部分，该部分可以通过磨削等被移除。在拆卸过程中，弯折的防松销40可以被拉直，由此螺栓30可以被拧松以使得内圈部段10和连接件20可以被分离。
上文描述内圈2包括两个内圈部段10。但是，本发明不限于此。根据本发明的实施例，内圈2还可以包括三个或更多个内圈部段，这些部段可以拼合成环形。
上文描述内圈部段10的连接部构造成连接槽。但是，本发明不限于此。根据本发明的实施例，内圈部段10的连接部还可以构造成平坦平面或凸起等，并且固定孔12可以构造成内圈部段10的连接部延伸。
上文描述多个固定孔12以均匀间隔分布。但是，本发明不限于此。在一些实施例中，多个固定孔12还可以非均匀间隔分布。
尽管已经参考示例性实施例描述了本发明，但是应理解，本发明并不限于上述实施例的构造和方法。相反，本发明意在覆盖各种修改例和等同配置。另外，尽管在各种示例性结合体和构造中示出了所公开发明的各种元件和方法步骤，但是包括更多、更少的元件或方法的其它组合也落在本发明的范围之内。
附图标记列表
1内圈；
2外圈；
3滚动体；
10内圈部段；
11连接槽；
12固定孔；
20连接片；
21通孔；
22防松槽；
30螺栓；
31头部；
32杆部；
33安装槽；
40防松销。

Claims (10)

  1. 一种轴承圈(1)，包括：
    多个轴承圈部段(10)，其构造成能够拼合成环形，其中每个轴承圈部段(10)包括：位于所述轴承圈部段(10)的轴向端面上并且邻近所述轴承圈部段(10)的周向端面的连接部，以及位于所述连接部上并且从所述连接部延伸的至少一个固定孔(12)；
    多个连接片(20)，其中，每个连接片(20)包括多个通孔(21)；和
    多个螺栓(30)，
    其中，当所述多个轴承圈部段(10)彼此拼合时，每个连接片(20)构造成能够布置在相邻两个轴承圈部段(10)的相邻连接部上，使得所述连接片(20)的多个通孔(21)分别与所述相邻两个轴承圈部段(10)的固定孔(12)相对应，所述通孔(21)与对应的所述固定孔(12)倾斜于所述轴承圈的轴向方向延伸，并且每个螺栓(30)构造成能够插入到所述连接片(20)的通孔(21)和轴承圈部段(10)的对应的固定孔(12)中，以将所述多个轴承圈部段(10)彼此连接。
  2. 根据权利要求1所述的轴承圈(1)，其中，每个轴承圈部段(10)的连接部构造成从所述轴承圈部段(10)的轴向端面凹入的连接槽(11)，并且
    其中，每个连接片(20)构造成能够布置在所述两个相邻轴承圈部段(10)的接续的连接槽(12)中。
  3. 根据权利要求2所述的轴承圈(1)，其中，每个轴承圈部段(10)的固定孔(12)构造成从所述连接槽(11)沿着逐渐远离所述轴承圈部段(10)的周向端面的方向倾斜地延伸。
  4. 根据权利要求3所述的轴承圈(1)，其中，每个轴承圈部段(10)的连接槽(11)构造成弧形，并且每个连接片(20)构造成弧形。
  5. 根据权利要求4所述的轴承圈(1)，还包括防松销(40)，其中，所述防松销(40)构造成能够连接到所述螺栓(30)，
    其中，所述连接片(20)包括与其通孔(21)连通的防松槽(22)，并且所述防松销(40)构造成当连接有所述防松销(40)的螺栓(30)被插入到所述连接片(20)的通孔(21)和相应轴承圈部段(10)的固定孔(12)中时，至少一个所述防松销能够经弯折而至少部分地容纳在所述连接片(20)的防松槽(22)中。
  6. 根据权利要求5所述的轴承圈(1)，其中，所述螺栓(30)包括位于其头部(31)上且沿所述螺栓(30)的轴向方向延伸的安装槽(33)，并且所述防松销(40)构造成能够可拆卸地连接到所述螺栓(30)的安装槽(33)中。
  7. 根据权利要求6所述的轴承圈(1)，其中，所述安装槽(33)和所述防松销(40)具有相匹配的楔形形状，且所述安装槽(33)的楔形形状构造成能防止所述防松销(40)沿所述螺栓(30)的轴向远离所述连接片(20)。
  8. 根据权利要求1至7中任一项所述的轴承圈(1)，其中，所述轴承圈(1)包括两个轴承圈部段(10)和两个连接片(20)。
  9. 一种滚动轴承，包括根据权利要求1至8中任一项所述的轴承圈(1)。
  10. 根据权利要求9所述的滚动轴承，其中，所述轴承圈(1)是所述滚动轴承的内圈。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1227832A (zh) * 1968-10-24 1971-04-07
US20060204159A1 (en) * 2005-03-14 2006-09-14 Yoon Suk T Self-locking structure of split roller bearing cage
DE102013226748A1 (de) * 2013-12-19 2015-06-25 Aktiebolaget Skf Innenring für ein Radial-Gelenklager, sowie Verfahren zur Montage eines Innenrings für ein Radial-Gelenklager
CN206668763U (zh) * 2016-09-26 2017-11-24 新昌县镜岭镇胜泰轴承配件厂 一种可快速组装和固定转轴的轴承
CN213511671U (zh) * 2020-09-27 2021-06-22 鞍钢集团矿业有限公司 周边传动浓缩机分体回转轴承
CN215370633U (zh) * 2021-07-16 2021-12-31 山东润龙轴承有限公司 一种四点接触球式回转支承剖分轴承

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1227832A (zh) * 1968-10-24 1971-04-07
US20060204159A1 (en) * 2005-03-14 2006-09-14 Yoon Suk T Self-locking structure of split roller bearing cage
DE102013226748A1 (de) * 2013-12-19 2015-06-25 Aktiebolaget Skf Innenring für ein Radial-Gelenklager, sowie Verfahren zur Montage eines Innenrings für ein Radial-Gelenklager
CN206668763U (zh) * 2016-09-26 2017-11-24 新昌县镜岭镇胜泰轴承配件厂 一种可快速组装和固定转轴的轴承
CN213511671U (zh) * 2020-09-27 2021-06-22 鞍钢集团矿业有限公司 周边传动浓缩机分体回转轴承
CN215370633U (zh) * 2021-07-16 2021-12-31 山东润龙轴承有限公司 一种四点接触球式回转支承剖分轴承

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