JP2015135142A - Assembling jig and assembling method of tapered roller bearing, and inner ring assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembling jig and an assembling method of a tapered roller bearing, with which tapered rollers can be made hardly separable in assembling, even when a segment has a simple structure, and to provide an inner ring assembly.SOLUTION: An assembling jig 4 having a plurality of roller fall prevention members 51 is prepared. The respective roller fall prevention members 51 have circular-arc shaped parts 60 and segment receiving parts 61, and fix the circular-arc shaped parts 60 to an outer peripheral face 18 of a large flange part 13 of an inner ring 1. Furthermore, the receiving parts 61 extend to a region at the outside of the outer peripheral face 18 in a radial direction from the circular-arc shaped parts 60 in a state that the circular-arc shaped parts 60 are fixed to the outer peripheral face 18. A plurality of the roller fall prevention members 51 are fixed to the outer peripheral face 18 so that a plurality of the segment receiving parts 61 present at a plurality of the roller fall prevention members 51 surround the outer peripheral face 18.

Description

  The present invention relates to a jig for assembling a tapered roller bearing, and also relates to a method for assembling a tapered roller bearing. The present invention also relates to an inner ring assembly including an inner ring, a segment retainer, and a plurality of tapered rollers.

  Conventionally, as a tapered roller bearing, there is one described in Japanese Patent Application Laid-Open No. 2007-21833 (Patent Document 1). This tapered roller bearing is installed in a wind power generator. The tapered roller bearing includes an outer ring, an inner ring, a plurality of tapered rollers, and a cage. The cage is composed of a plurality of arc-shaped segments, and each segment holds a plurality of tapered rollers. It has become.

  For large tapered roller bearings used in wind power generators and nuclear magnetic resonance apparatuses, it is known that it is difficult to produce an annular integrated cage. In the above tapered roller bearing, the cage is composed of a plurality of arc-shaped segments, so that the tapered rollers can be held by the cage, the contact between the tapered rollers is prevented, and the tapered rollers roll smoothly. I have to.

  The tapered roller bearing is assembled as follows, for example. That is, the large end surface in the axial direction of the inner ring is placed on a horizontal plane, and the axial direction of the inner ring is made to coincide with the vertical direction. Thereafter, the cage assembly composed of the cage and the plurality of tapered rollers is arranged from the radially outer side of the inner ring so that each tapered roller is located on the outer raceway surface of the inner ring. Thereafter, the outer ring is moved relative to the inner ring in the axial direction so that the tapered rollers of the cage assembly are positioned on the inner raceway surface of the outer ring, and the outer ring is assembled to the cage assembly. In this way, the assembly of the tapered roller bearing is completed.

  Since the conventional cage is not integrated but is composed of a plurality of segments and adjacent segments are not engaged with each other, each segment can move independently of the other segments. Therefore, in a state where the inner ring stands upright in the vertical direction and the cage assembly is disposed on the outer raceway surface of the inner ring, each segment may fall from the inner ring downward in the vertical direction due to gravity. Moreover, although it does not lead to a fall, the small end surface of the tapered roller disposed in the pocket of each segment may be caught by the small collar portion of the inner ring and tilted, which may hinder the mounting of the outer ring.

  On the other hand, in order to avoid this problem, if the adjacent segments are connected to each other so that the adjacent segments are connected to each other and it is difficult for the segments to fall, the shape of the cage becomes complicated. .

JP 2007-211183 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide an assembling jig and an assembling method for a tapered roller bearing that make it difficult for the tapered roller to be detached at the time of assembly even if the segment has a simple structure. Another object of the present invention is to provide an inner ring assembly in which a tapered roller is difficult to be detached from an inner ring even if the segment has a simple structure.

In order to solve the above problems, an assembly jig for a tapered roller bearing having the segment cage of the present invention is as follows:
Provided with multiple roller fall prevention members,
Each roller fall prevention member is
An arc-shaped portion fixed to the outer peripheral surface of the large collar portion located on the large-diameter side of the conical raceway surface of the inner ring of the tapered roller bearing;
With the arc-shaped portion fixed to the outer peripheral surface, a segment receiving portion extending from the arc-shaped portion to a radially outer region of the outer peripheral surface,
A segment holder characterized in that the plurality of roller fall prevention members can be fixed to the outer peripheral surface so that the plurality of segment receiving portions existing in the plurality of roller fall prevention members surround the outer peripheral surface. It is characterized by providing.

  It should be noted that the phrase “a plurality of the segment receiving portions present in the plurality of roller fall prevention members surround the outer peripheral surface” is a segment receiving surface that receives a segment in each segment receiving portion (such as a drop). The surface that can be contacted by the segment) is satisfied when it does not overlap the axial direction of the inner ring. Therefore, the two segment receiving surfaces of the two roller fall-preventing members adjacent in the circumferential direction of the inner ring may be positioned at intervals in the circumferential direction, or may be positioned at intervals in the circumferential direction. good.

  According to the present invention, the plurality of roller fall prevention members can be fixed to the outer peripheral surface such that the plurality of segment receiving portions existing in the plurality of roller fall prevention members surround the outer peripheral surface. Therefore, by arranging each segment receiving part along the end surface on the large collar part side in the axial direction of the segment (the axial direction of the inner ring), even if the segment tries to change its posture in a large area in the circumferential direction. The segment receiving portion can apply a force to the segment, and the segment receiving portion can prevent a change in the posture of the segment. Therefore, it is possible to prevent the small end face of the tapered roller in the pocket of the segment from being caught and inclined by the small collar portion of the inner ring, and it is possible to prevent the segment in which the tapered roller is arranged from falling. Therefore, even if the segment has a simple structure that does not have an engaging portion with another segment, there is a problem in mounting the outer ring on the inner ring assembly including the inner ring, the segment retainer, and the plurality of tapered rollers. The outer ring can be smoothly mounted on the inner ring assembly without being damaged.

Further, the method for assembling the tapered roller bearing of the present invention includes:
A segment retainer having an outer ring of a tapered roller bearing, an inner ring of a tapered roller bearing, a plurality of tapered rollers, and a plurality of segments, each segment having one or more pockets for accommodating one or more of the tapered rollers; A member preparing step for preparing a jig for assembling the tapered roller bearing of the present invention;
An assembling jig fixing step for fixing the plurality of roller fall prevention members to the outer peripheral surface such that the plurality of segment receiving portions present in the plurality of roller fall prevention members surround the outer peripheral surface;
An inner ring positioning step for bringing the inner ring into a state in which the large-diameter side of the outer peripheral conical raceway surface of the inner ring is positioned on the lower side in the vertical direction and the axial direction of the inner ring substantially coincides with the vertical direction;
A tapered roller housing step of housing the tapered roller in each pocket of each segment;
After the inner ring positioning step, the segments in which the tapered rollers are accommodated in all the pockets are assembled to the inner ring so that the tapered rollers accommodated in the pockets are positioned on the outer circumferential conical raceway surface of the inner ring. Segment assembly process;
After performing the segment assembling process in all the segments and after the assembling jig fixing process, the outer ring is used as the inner ring until the tapered rollers are positioned on the inner circumferential conical raceway surface of the outer ring. On the other hand, an outer ring attaching step of relatively moving in the axial direction of the inner ring is provided.

  If the order of the above steps is not clearly described, any of these steps may be performed first, and two or more steps may be performed simultaneously for a certain time with a time difference. Alternatively, two or more steps may be performed simultaneously without providing a time difference.

  According to the present invention, after performing the segment assembling process in all the segments and after the assembly jig fixing process, the outer ring is attached to the inner ring assembly including the inner ring, the segment holder, and the plurality of tapered rollers. Therefore, even if the segment tries to change its posture in a large area in the circumferential direction, force can be applied to the segment at the segment receiving portion, and the segment's posture at the segment receiving portion Can be prevented. Therefore, it is possible to prevent the small end surface of the tapered roller disposed in the pocket of the segment from being caught by the small collar portion of the inner ring and tilting, and from this, it is possible to naturally prevent the segment in which the tapered roller is disposed from falling. Therefore, even if the segment has a simple structure that does not have an engaging portion with another segment, there is a problem in mounting the outer ring on the inner ring assembly including the inner ring, the segment retainer, and the plurality of tapered rollers. The outer ring can be smoothly mounted on the inner ring assembly without being damaged.

The inner ring assembly of the present invention is
An inner ring having an outer circumferential conical raceway surface;
A segment holder having a plurality of segments, each segment having one or more pockets;
A tapered roller housed in the pocket of each segment and positioned on the outer peripheral conical raceway surface;
An assembly jig for the tapered roller bearing of the present invention,
The plurality of roller fall prevention members are fixed to the outer peripheral surface so that the plurality of segment receiving portions present in the plurality of roller fall prevention members surround the outer peripheral surface,
Each segment is characterized by having a receiving portion overlapping portion overlapping with one of the segment receiving portions in the axial direction of the inner ring.

  According to the present invention, the plurality of roller fall prevention members are fixed to the outer peripheral surface so that the plurality of segment receiving portions surround the outer peripheral surface, and each segment is attached to any one of the segment receiving portions in the axial direction of the inner ring. Therefore, even if any segment attempts to change the posture, the segment receiving portion can apply a force to the segment, and the segment receiving portion can prevent a change in the posture of the segment. Therefore, it is possible to prevent the small end face of the tapered roller in the pocket of the segment from being caught and inclined by the small collar portion of the inner ring, and it is possible to prevent the segment in which the tapered roller is arranged from falling. Therefore, even if the segment has a simple structure, it is possible to smoothly assemble the tapered roller bearing without causing any trouble when the outer ring is mounted on the inner ring assembly of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, even if a segment is a simple structure, the assembly jig and assembly method of a tapered roller bearing which can make a tapered roller difficult to detach | leave at the time of an assembly are realizable. Further, according to the present invention, it is possible to realize an inner ring assembly in which the tapered roller is difficult to be detached from the inner ring even if the segment has a simple structure.

It is a perspective view of the inner ring assembly which appears as an intermediate state during the assembly of the tapered roller bearing. It is an overhead view of a part of the inner ring assembly. It is a figure which shows one state in the middle of attaching the outer ring | wheel to the inner ring | wheel assembly.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of an inner ring assembly that appears as an intermediate state during the assembly of a tapered roller bearing, and is a diagram illustrating an assembly jig for a tapered roller bearing according to an embodiment of the present invention.

  As shown in FIG. 1, the inner ring assembly includes an inner ring 1, a segment retainer 2, a plurality of tapered rollers 3, and a tapered roller bearing assembly jig 4. The inner ring 1 has an outer peripheral conical raceway surface 11, a small collar part 12, and a large collar part 13. The small flange portion 12 is located on the small diameter side of the outer peripheral conical track surface 11, while the large flange portion 13 is positioned on the large diameter side of the outer peripheral conical track surface 11.

  FIG. 2 is an overhead view of a part of the inner ring assembly. In FIG. 2, the illustration of a part of the segments 21 is omitted to show the outer circumferential conical track surface 11.

  As shown in FIG. 2, the segment holder 2 has a plurality of segments 21. The segments 21 are all the same. The plurality of segments 21 are arranged so as to overlap the outer circumferential surface 15 of the inner ring 1 in the circumferential direction of the outer circumferential surface 15. When each segment 21 is disposed on the outer peripheral surface 15 and the segment 21 is viewed from the outside of the outer peripheral surface 15 in the axial direction, each segment 21 has an arc shape.

  As shown in FIG. 2, each segment 21 has a box shape without an upper surface and a lower surface. The tapered roller 3 is accommodated in the box portion. The inner surface of the box portion of each segment 21 constitutes a pocket 46. Each segment 21 has only one pocket 46, and each segment 21 accommodates one tapered roller 3 in the pocket 46.

  Each segment 21 has a first arc-shaped portion 42, a second arc-shaped portion 43, a first rolling surface guide side surface 44, and a second rolling surface guide side surface 45. As shown in FIG. 2, the first arcuate portion 42 is opposed to the small end surface 70 of the tapered roller 3 in the axial direction (axial direction of the inner ring 1), while the second arcuate portion 43 is formed of the tapered roller 3. It faces the large end surface 71 in the axial direction.

  Referring again to FIG. 1, the tapered roller 3 held by each segment 21 is located on the outer circumferential conical track surface 11 of the inner ring 1. As shown in FIGS. 1 and 2, the assembly jig 4 is fixed to the outer peripheral surface 18 of the large collar 13 of the inner ring 1. The assembly jig 4 has a plurality of roller fall prevention members 51 instead of an integral structure. In FIG. 2, only a part of one roller fall prevention member 51 is shown. In FIG. 2, reference numeral 94 indicates an end face on one side in the circumferential direction of the roller drop prevention member 51. Although not shown, the plurality of roller fall prevention members 51 are arranged so as to overlap in the circumferential direction of the inner ring 1, but are arranged so as not to overlap in the axial direction of the inner ring 1. The plurality of roller fall prevention members 51 together constitute a substantially annular member. For this reason, almost all the portions of the segments 21 overlap one of the segment receiving portions 61 in the axial direction of the inner ring 1. For this reason, almost all the portions of the segments 21 are receiving portion overlapping portions that overlap the segment receiving portions 61 in the axial direction of the inner ring 1.

  As shown in FIG. 1, each of the roller fall prevention members 51 includes an arc-shaped portion 60 and a segment receiving portion 61. The arc-shaped portion 60 has an inner surface corresponding to the outer peripheral surface 18 of the large collar portion 13. Moreover, the outer peripheral surface of the large collar portion 13 of the inner ring 1 has a plurality of screw holes, and the plurality of screw holes are located at intervals in the circumferential direction. The arc-shaped portion 60 of each roller drop preventing member 51 is fixed to the outer peripheral surface 18 of the large collar portion 13 with a bolt 63. The bolt 63 is screwed into a screw hole penetrating the arc-shaped portion 60, and is further screwed into a screw hole of the large collar portion 13.

  The segment receiving portion 61 extends from the arc-shaped portion 60 to a radially outer region of the outer peripheral surface 18 with the arc-shaped portion 60 fixed to the outer peripheral surface 18 of the large collar portion. As shown in FIG. 1, in a state where the arc-shaped portion 60 is fixed to the outer peripheral surface 18, the segment receiving portion 61 is along the end surface on the outer side in the axial direction of the second arc-shaped portion 43 of the segment 21. So as to extend. As shown in FIG. 1, the axially outward end surface 77 of the second arc-shaped portion 43 of the segment 21 and the segment receiving portion 61 are normal to the end surface 77 of the second arc-shaped portion 43. Are opposed to each other through a slight gap.

  In a state where the plurality of roller fall prevention members 51 are fixed to the large collar portion 13, each roller fall prevention member 51 has substantially the same cross-sectional shape in the radial cross section of the inner ring 1. The plurality of roller fall prevention members 51 are fixed to the large collar 13 with the arc-shaped portion 60 substantially overlapping in the circumferential direction and the segment receiving portion 61 also substantially overlapping in the circumferential direction.

  The segment receiving portion 61 extends in the height direction of the segment 21 indicated by an arrow B in FIG. The dimension of the segment receiving portion 61 in the height direction is longer than the dimension of the segment 21 in the height direction. As shown in FIG. 1, the segment receiving portion 61 covers the entire length of the segment 21 in the height direction.

  Hereinafter, an example of the assembly method of the tapered roller bearing using the assembly jig 4 will be described.

  First, a member preparation process is performed. In this component preparation step, an outer ring of the tapered roller bearing, an inner ring 1 of the tapered roller bearing, a plurality of tapered rollers 3, the segment retainer 2, and a jig 4 for assembling the tapered roller bearing are prepared.

  Next, an assembly jig fixing step is performed. In this assembly jig fixing step, the plurality of roller fall prevention members 51 are overlapped in the circumferential direction, while the arc-shaped portion 60 of each roller fall prevention member 51 is placed on the large collar portion 13 so as not to overlap in the axial direction. The outer peripheral surface is fixed using bolts 63.

  Next, an inner ring positioning process is performed. In this inner ring positioning step, the end surface on the large diameter side of the outer peripheral conical raceway surface 11 in the axial direction of the inner ring 1 is placed on a horizontal plane so that the axial direction of the inner ring 1 substantially matches the vertical direction.

  Subsequently, a tapered roller accommodation step is performed. In this tapered roller housing step, the tapered roller 3 is housed in the pocket 46 of each segment 21 of the segment holder 2.

  Subsequently, a segment assembling step is performed. In this segment arrangement step, the segment 21 is arranged on the inner ring 1 so that the tapered roller 3 in the pocket 46 of the segment 21 is positioned on the outer circumferential conical raceway surface 11 of the inner ring 1. In this way, the inner ring assembly shown in FIG. 1 is configured.

  Finally, an outer ring attachment process is performed. In this outer ring attaching step, referring to FIG. 3, the outer ring 7 is moved in the direction indicated by the arrow A in FIG. 3 with respect to the inner ring assembly until each tapered roller 3 is positioned on the inner circumferential conical raceway surface 38 of the outer ring 7. The inner ring 1 is relatively moved in the axial direction. In this way, the assembly of the tapered roller bearing is completed.

  According to the above-described embodiment, the plurality of roller drop prevention members 51 are provided on the large collar portion 13 so that the plurality of segment receiving portions 61 existing on the plurality of roller fall prevention members 51 surround the outer peripheral surface over substantially the entire circumference. The segment receiving portions 61 are positioned along the end surface 77 in the axial direction of the segment 21 (in the axial direction of the inner ring 1). Therefore, in any region in the circumferential direction, even if the segment 21 attempts to change its posture, the segment receiving portion 61 can apply force to the segment 21. Therefore, the segment receiving portion 61 can prevent the posture of the segment 21 from changing, and the small end surface 70 of the tapered roller 3 in the pocket 46 of the segment 21 is prevented from being caught by the small flange portion 12 of the inner ring 1 and being inclined. Therefore, it is possible to naturally prevent the segment 21 in which the tapered rollers 3 are arranged from falling. Therefore, even if the segment 21 has a simple structure having no engaging portion with the other segment 21 as in the present embodiment, the inner ring 1, the segment holder 2, and the plurality of tapered rollers 3 are connected. The outer ring 7 can be smoothly mounted on the inner ring assembly without causing any trouble when the outer ring 7 is mounted on the inner ring assembly provided.

  In the above embodiment, each segment 21 of the segment holder 2 has only one pocket 46. However, in this invention, each segment of the holder is one or more independent and independent of other segments. Any number of pockets may be included.

  Moreover, in the said embodiment, although each segment 21 which comprises the segment holder | retainer 2 was all the same, in this invention, the several segment which comprises a segment holder | retainer has two or more segments which are mutually different. Also good.

  Moreover, in the said embodiment, the some roller fall prevention member 51 which the jig | tool 4 for assembly of a tapered roller bearing has mutually combined comprised the substantially cyclic | annular member. However, in this invention, the plurality of roller fall prevention members of the assembly jig for the tapered roller bearing are arranged so as to overlap in the circumferential direction, while being arranged so as not to overlap in the axial direction, A circumferential gap may exist between a pair of at least one roller fall prevention member adjacent in the circumferential direction. In this case, needless to say, in any one segment, the receiving portion overlapping portion overlapping the segment receiving portion in the axial direction of the inner ring is not the entire segment. In this case, the maximum circumferential clearance among the circumferential clearances of the pair of two roller fall prevention members adjacent in the circumferential direction is the minimum circumferential direction among the plurality of segments of the segment cage. It is preferable that the size of the segment is smaller than the circumferential dimension of the segment because the segment can be more reliably prevented from tilting.

  In the above embodiment, the segment receiving portion 61 covers the entire length of the segment 21 in the height direction indicated by the arrow B in FIG. 1 in the state of the inner ring assembly shown in FIG. In the assembled state, the segment receiving portion may cover only a part of the segment in the height direction.

  Moreover, in the said embodiment, each segment 21 which comprises the segment holder | retainer 2 had the two circular arc-shaped parts 42 and 43, and the segment holder | retainer 2 was a structure of both ends. However, in this invention, the segment holder is a machined holder or the like, and each segment constituting the segment holder has only one arcuate portion, and the segment holder is cantilevered. It may be. In this invention, the segment holder may have any structure as long as it consists of a plurality of segments.

  Further, in the above-described embodiment, each of the roller drop prevention members 51 includes the arc-shaped portion 60 and the segment receiving portion 61, and the arc-shaped portion 60 is fixed to the outer peripheral surface 18 of the large collar portion 13 with the bolt 63. did. However, in the present invention, the concave surface of the arc-shaped portion of each roller drop prevention member has a protruding portion protruding from the concave surface, and the outer peripheral surface of the large collar portion of the inner ring has a concave portion corresponding to the protruding portion. good. Then, each roller drop prevention member may be fixed to the inner ring by fitting the protruding portion of the arc-shaped portion of the roller drop prevention member into the recess of the large collar portion. In this invention, you may fix each roller fall prevention member to the outer peripheral surface of a large collar part by what kind of means.

  Moreover, in the said embodiment, each segment receiving part 61 was substantially linear shape in the cross section of radial direction, However, In this invention, at least 1 segment receiving part is curved shape in the cross section of radial direction. It may be a shape formed by connecting a straight line and a curved line.

  Further, in the present invention, all the roller drop prevention members included in the assembly jig for the tapered roller bearing may be the same, or the assembly jig for the tapered roller bearing may include two or more different rollers. You may have a fall member.

  Moreover, in the said embodiment, each process in invention of a method is the following two conditions, ie, conditions 1) Each segment is said to arrange | position a tapered roller in all the pockets of the segment, and to arrange | position to an inner ring | wheel. Conditions and Condition 2) Segments containing tapered rollers in all pockets are arranged in a state in which the large-diameter side of the outer peripheral conical raceway surface of the inner ring is positioned vertically downward and the axial direction of the inner ring is substantially vertical. As long as it meets the condition of being arranged on the inner ring in a matched state, it may be performed in any order, and two or more processes may be performed simultaneously for a certain time with a time difference, or Two or more steps may be performed simultaneously without providing a time difference.

  In the above embodiment, the tapered roller assembly jig includes a plurality of roller fall prevention members 51 and is composed of a plurality of pieces. Therefore, each roller fall prevention member 51 is replaced with another roller fall prevention member. It can be removed from the inner ring 1 by moving it in a direction including the radial direction (horizontal direction) of the inner ring 1 irrespective of 51. Therefore, when removing the assembly jig from the tapered roller bearing as a product, the assembly jig can be easily and smoothly removed.

  However, in the present invention, the assembly jig may be present in the tapered roller bearing as a product without removing the assembly jig from the tapered roller bearing. In this case, a labyrinth seal can be constructed between the segment holder and the segment receiving portion of the assembly jig. Therefore, the internal sealing performance of the tapered roller bearing can be improved, foreign matters can be prevented from reaching the conical raceway surface of the tapered roller bearing, and the deterioration of the lubricant can be suppressed.

  Of course, it is possible to form a new embodiment by combining two or more of the configurations described in the above embodiments and modifications. Further, the present invention is preferably applied to the assembly of a tapered roller bearing disposed on the main shaft of a wind power generator or the rotating shaft of a nuclear magnetic resonance apparatus, but the present invention is applied to the assembly of any industrial machine or construction machine. Needless to say, you can.

DESCRIPTION OF SYMBOLS 1 Inner ring 2 Segment retainer 3 Tapered roller 4 Assembly jig 7 Outer ring 11 Outer conical raceway surface 13 Large collar portion 18 Large collar portion outer circumferential surface 21 Segment 38 Inner circumference conical raceway surface 46 Segment pocket 51 Roller fall prevention member 60 Arc-shaped part of roller fall prevention member 61 Segment receiving part of roller fall prevention member 63 Bolt

Claims (3)

Provided with multiple roller fall prevention members,
Each roller fall prevention member is
An arc-shaped portion fixed to the outer peripheral surface of the large collar portion located on the large-diameter side of the conical raceway surface of the inner ring of the tapered roller bearing;
With the arc-shaped portion fixed to the outer peripheral surface, a segment receiving portion extending from the arc-shaped portion to a radially outer region of the outer peripheral surface,
A segment holder characterized in that the plurality of roller fall prevention members can be fixed to the outer peripheral surface so that the plurality of segment receiving portions existing in the plurality of roller fall prevention members surround the outer peripheral surface. An assembly jig for a tapered roller bearing. A segment retainer having an outer ring of a tapered roller bearing, an inner ring of a tapered roller bearing, a plurality of tapered rollers, and a plurality of segments, each segment having one or more pockets for accommodating one or more of the tapered rollers; A member preparing step for preparing an assembly jig for the tapered roller bearing according to claim 1;
An assembling jig fixing step for fixing the plurality of roller fall prevention members to the outer peripheral surface such that the plurality of segment receiving portions present in the plurality of roller fall prevention members surround the outer peripheral surface;
An inner ring positioning step for bringing the inner ring into a state in which the large-diameter side of the outer peripheral conical raceway surface of the inner ring is positioned on the lower side in the vertical direction and the axial direction of the inner ring substantially coincides with the vertical direction;
A tapered roller housing step of housing the tapered roller in each pocket of each segment;
After the inner ring positioning step, the segments in which the tapered rollers are accommodated in all the pockets are assembled to the inner ring so that the tapered rollers accommodated in the pockets are positioned on the outer circumferential conical raceway surface of the inner ring. Segment assembly process;
After performing the segment assembling process in all the segments and after the assembling jig fixing process, the outer ring is used as the inner ring until the tapered rollers are positioned on the inner circumferential conical raceway surface of the outer ring. And an outer ring mounting step of relatively moving the inner ring in the axial direction of the inner ring. An inner ring having an outer circumferential conical raceway surface;
A segment holder having a plurality of segments, each segment having one or more pockets;
A tapered roller housed in the pocket of each segment and positioned on the outer peripheral conical raceway surface;
An assembly jig for the tapered roller bearing according to claim 1,
The plurality of roller fall prevention members are fixed to the outer peripheral surface so that the plurality of segment receiving portions present in the plurality of roller fall prevention members surround the outer peripheral surface,
Each segment has a receiving portion overlapping portion overlapping with one of the segment receiving portions in the axial direction of the inner ring.

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