TWI726224B - Rolling bearings and retainers - Google Patents

Rolling bearings and retainers Download PDF

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Publication number
TWI726224B
TWI726224B TW107124188A TW107124188A TWI726224B TW I726224 B TWI726224 B TW I726224B TW 107124188 A TW107124188 A TW 107124188A TW 107124188 A TW107124188 A TW 107124188A TW I726224 B TWI726224 B TW I726224B
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Taiwan
Prior art keywords
ring
axial direction
column
claw
protrusion
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TW107124188A
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Chinese (zh)
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TW201910655A (en
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室昂佑
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日商捷太格特股份有限公司
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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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4641—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages comprising two annular parts joined together
    • F16C33/4647—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages comprising two annular parts joined together made from metal, e.g. two cast parts joined by rivets
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
    • F16C19/28—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with two or more rows of rollers
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/44—Needle bearings
    • F16C19/48—Needle bearings with two or more rows of needles
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/70—Positive connections with complementary interlocking parts
    • F16C2226/72—Positive connections with complementary interlocking parts with bayonet joints, i.e. parts are rotated to create positive interlock
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4641—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages comprising two annular parts joined together
    • F16C33/4652—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages comprising two annular parts joined together made from plastic, e.g. two injection moulded parts joined by a snap fit
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
    • F16C33/4682—Details of individual pockets, e.g. shape or roller retaining means of the end walls, e.g. interaction with the end faces of the rollers
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/52—Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers

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

Abstract

本發明的保持器，具備：保持器主體，具有第一環狀體及複數的柱；第二環狀體；及軸構件，用於連結保持器主體與第二環狀體。複數的柱，包括：第一柱，形成有插穿軸構件的貫穿孔，及第二柱，在軸向一方側的端部具有爪。第二環狀體在與第二柱連結的部份，具有收容爪的凹部，在凹部的一部份設有與爪卡合的突起。The retainer of the present invention includes a retainer body having a first ring-shaped body and a plurality of posts; a second ring-shaped body; and a shaft member for connecting the retainer body and the second ring-shaped body. The plural columns include a first column with a through hole formed to penetrate the shaft member, and a second column with a claw on one end in the axial direction. The second annular body has a recess for accommodating the claw at the part connected with the second column, and a protrusion for engaging with the claw is provided in a part of the recess.

Description

滾動軸承及保持器Rolling bearings and retainers

本發明的樣態是關於滾動軸承及保持滾動軸承之滾動體的保持器。The aspect of the present invention relates to a rolling bearing and a cage holding the rolling elements of the rolling bearing.

滾動軸承為支撐軸而在種種的領域被廣泛地運用，一般具備：內圈、外圈、設置在該等內圈與外圈之間的複數滾動體及保持該等滾動體的環狀的保持器。Rolling bearings are widely used in various fields to support shafts. Generally, they have: inner ring, outer ring, plural rolling elements arranged between the inner ring and outer ring, and ring-shaped cages that hold the rolling elements. .

作為如上述的滾動軸承具備的保持器有例如黃銅製，如第8圖表示，有藉鉚釘91組裝而成(例如，參閱專利文獻1)。第8圖是表示如上述之保持器99的一部份的透視圖。該保持器99，具備：保持器主體96，具有圓環狀的第一環狀體98及從該第一環狀體98軸向延伸的複數的柱97，及圓環狀的第二環狀體95，設置在複數的柱97的軸向一方側。位於第一環狀體98與第二環狀體95之間在周圍方向彼此相鄰的柱97、97之間的空間94形成保持未圖示的滾動體的口袋。As the cage provided in the above-mentioned rolling bearing, for example, there is made of brass, and as shown in FIG. 8, it is assembled with rivets 91 (for example, refer to Patent Document 1). Fig. 8 is a perspective view showing a part of the holder 99 as described above. The retainer 99 includes a retainer body 96, a first ring body 98 having an annular shape, a plurality of posts 97 extending axially from the first ring body 98, and a second ring shape having an annular shape. The body 95 is provided on one side in the axial direction of the plurality of columns 97. The space 94 between the pillars 97 and 97 adjacent to each other in the peripheral direction between the first ring body 98 and the second ring body 95 forms a pocket for holding a rolling body not shown.

保持器主體96中，在所有的柱97及第一環狀體98之中連結柱97的部份98a，在鉚釘91的軸部91b插穿的軸向形成有長的第一孔93。並且，在第二環狀體95中，形成有以和柱97相同的軸向間距軸向貫穿的第二孔92。將鉚釘91的軸部91b插穿該等第一孔93及第二孔92，進行鉚釘端部91a鉚接，使保持器主體96與第二環狀體95成為一體。 [先前技術文獻] [專利文獻]In the holder main body 96, among all the posts 97 and the first ring-shaped body 98, the part 98a connecting the post 97 is formed with a long first hole 93 in the axial direction through which the shaft 91b of the rivet 91 is inserted. In addition, the second annular body 95 has second holes 92 penetrating axially at the same axial pitch as the columns 97 are formed. The shaft portion 91b of the rivet 91 is inserted through the first hole 93 and the second hole 92, and the rivet end portion 91a is riveted, so that the holder main body 96 and the second annular body 95 are integrated. [Prior Technical Document] [Patent Document]

[專利文獻1]日本特開2001-323934號公報[Patent Document 1] JP 2001-323934 A

[發明所欲解決之課題][The problem to be solved by the invention]

鉚釘91的軸部91b的直徑為例如2mm左右，形成於保持器主體96的第一孔93的直徑及形成於第二環狀體95的第二孔92的直徑比軸部91b的直徑稍微大。為了在保持器主體96形成第一孔93，有將工具軸向貫穿柱97及第一環狀體98的必要，但由於形成的第一孔93為直徑較小的軸向長孔，因此其加工困難，會有工具細而折斷的場合。並且，有對所有的柱97進行如上述孔加工的必要，會有保持器99的製造困難的問題點。並且，即使完成如上述的孔加工，也有逐一使用錘等對著與柱97同數的鉚釘91進行鉚接作業的必要，而會有組裝耗費工時的問題點。The diameter of the shaft portion 91b of the rivet 91 is, for example, about 2 mm. The diameter of the first hole 93 formed in the retainer body 96 and the diameter of the second hole 92 formed in the second annular body 95 are slightly larger than the diameter of the shaft portion 91b. . In order to form the first hole 93 in the retainer body 96, it is necessary to insert a tool axially through the column 97 and the first annular body 98. However, the first hole 93 formed is an axially long hole with a small diameter. Difficulty in processing, there will be occasions where the tool is thin and broken. In addition, it is necessary to perform hole processing as described above for all the posts 97, and there is a problem that the manufacture of the retainer 99 is difficult. Furthermore, even if the above-mentioned hole processing is completed, it is necessary to use a hammer or the like to perform riveting operations on the rivets 91 of the same number as the column 97 one by one, and there is a problem that assembly takes man-hours.

保持器99(根據型號不同)例如具備12~20支左右的柱97，柱97的數量越多，會有其製造(孔加工)與組裝作業所需較多工數的問題點。 　　為此，本發明的樣態是以提供一種刪減連結保持器主體與第二環狀體用的孔加工與連結作業的工時，並可降低製造及組裝工數的保持器，及具備此保持器的滾動軸承為目的。 [用於解決課題的手段]The retainer 99 (depending on the model) includes, for example, about 12 to 20 posts 97. The larger the number of posts 97, the more labor required for manufacturing (hole processing) and assembly operations. For this reason, the aspect of the present invention is to provide a retainer that reduces the number of man-hours for processing and connecting the hole for connecting the retainer main body and the second annular body, and can reduce the number of manufacturing and assembling processes, and is provided with this retainer The purpose of the cage is the rolling bearing. [Means used to solve the problem]

本發明之一樣態中，具備：保持器主體，具有第一環狀體及從該第一環狀體朝軸向一方側延伸的複數的柱；第二環狀體，設置在複數上述柱的軸向一方側；及軸構件，較上述柱的數量少，用於軸向貫穿上述保持器主體與上述第二環狀體並連結，位於上述第一環狀體與上述第二環狀體之間在周圍方向彼此相鄰的上述柱之間的空間形成保持滾動體的口袋，上述複數的柱，包括：第一柱，形成有插穿上述軸構件的貫穿孔，及第二柱，在軸向一方側的端部具有爪，上述第二環狀體在與上述第二柱連結的部份，具有收容上述爪的凹部，在該凹部設有與上述爪卡合的突起。In a similar aspect of the present invention, a retainer body is provided with a first annular body and a plurality of columns extending from the first annular body toward one side in the axial direction; and a second annular body is provided on the plurality of columns. One side in the axial direction; and a shaft member, which has a smaller number of posts than the above-mentioned posts, for axially penetrating the holder main body and the second ring-shaped body and connecting them, and is located between the first ring-shaped body and the second ring-shaped body The space between the pillars adjacent to each other in the peripheral direction forms a pocket for holding the rolling element. The plurality of pillars includes a first pillar with a through hole formed to penetrate the shaft member, and a second pillar on the shaft The end on one side has a claw, and the second ring-shaped body has a recess for accommodating the claw at a portion connected to the second column, and a protrusion that engages with the claw is provided in the recess.

根據該保持器，複數的柱，包括：軸構件貫穿藉此與第二環狀體連結的第一柱，及藉著爪與突起的卡合與第二環狀體連結的第二柱所構成。亦即，由於連結保持器主體與第二環狀體，因此對所有的柱無插穿軸構件的必要，只要在複數的柱中的一部份的第一柱插穿軸構件，在其他的第二柱卡合爪與突起即可。因此，沒有在所有的柱，及對應該等所有柱的第一環狀體及第二環狀體各個部份，形成插穿軸構件之貫穿孔的必要。因此，刪減藉軸構件連結保持器主體與第二環狀體用之孔加工或藉軸構件進行連結作業的工時，可降低保持器的製造及組裝工數。並且，作為上述「藉軸構件進行連結作業」的例是例如軸構件為鉚釘的場合，進行鉚釘作業。According to this retainer, the plural columns include: the first column through which the shaft member penetrates and is connected to the second ring-shaped body, and the second column which is connected to the second ring-shaped body by the engagement of the claws and the protrusions . That is, because the holder main body and the second annular body are connected, there is no need to insert the shaft member for all the columns. As long as the first column of a part of the plurality of columns is inserted through the shaft member, the other It is sufficient for the second column to engage the claw and the protrusion. Therefore, there is no need to form a through hole for inserting the shaft member in all the columns and the respective parts of the first ring body and the second ring body corresponding to all the columns. Therefore, the number of man-hours for the hole processing for connecting the holder main body and the second annular body by the shaft member or the connection work by the shaft member can be reduced, and the number of manufacturing and assembling steps of the holder can be reduced. In addition, as an example of the above-mentioned "connection operation by means of a shaft member", for example, when the shaft member is a rivet, the rivet operation is performed.

又，上述複數的柱，進一步以包括軸向一方側的端面可接觸於上述第二環狀體的軸向另一方側的面並與該第二環狀體成為非連結狀態的第三柱為佳。根據此構成，在複數的柱除了第一柱與第二柱之外，並包括第三柱，進一步減少使用軸構件連結保持器主體與第二環狀體之處，可更進一步降低保持器的製造及組裝工數。In addition, the plurality of columns further includes a third column whose end surface on one side in the axial direction can contact the surface on the other side in the axial direction of the second annular body and is in a non-connected state with the second annular body. good. According to this structure, in addition to the first column and the second column, and the third column in the plural columns, the use of shaft members to connect the holder main body and the second annular body is further reduced, and the holder’s capacity can be further reduced. Number of manufacturing and assembly work.

又，上述凹部是以在上述突起的周圍方向一方側的旁邊，包括可將上述爪軸向***的間隔為佳。根據此構成，在組合保持器主體與第二環狀體時，相對於設置在第二環狀體之凹部的上述間隔，將保持器主體的第二柱從軸向***，隨後，使第二環狀體相對於保持器主體朝周圍一方側旋轉時，獲得可將爪卡合於突起的構成。並且，在爪與突起卡合的狀態，只要藉貫穿第一柱的軸構件連結保持器主體與第二環狀體即可，使保持器主體與第二環狀體成為不能在周圍方向旋轉，使得爪與突起的卡合不能鬆脫。因此，根據上述構成，容易藉爪與突起的卡合進行保持器的組裝，並且，在組裝完成時，只要藉著爪與突起的卡合機構式地結合保持器主體與第二環狀構件，可提升保持性的剛性。In addition, it is preferable that the said recessed part is the side of one side of the peripheral direction of the said protrusion, and it is good to include the space|interval which can insert the said claw axially. According to this configuration, when combining the holder main body and the second annular body, the second post of the holder main body is inserted from the axial direction with respect to the above-mentioned interval of the concave portion provided in the second annular body, and then the second When the ring-shaped body rotates to one side of the surrounding with respect to the holder main body, a structure capable of engaging the claws with the protrusions is obtained. In addition, in the state where the claw and the protrusion are engaged, it is only necessary to connect the holder main body and the second annular body by the shaft member penetrating the first column, so that the holder main body and the second annular body cannot rotate in the peripheral direction. The engagement between the claw and the protrusion cannot be released. Therefore, according to the above configuration, it is easy to assemble the holder by the engagement of the claws and the protrusions, and when the assembly is completed, the holder body and the second ring-shaped member only need to be coupled by the engagement mechanism of the claws and the protrusions. The rigidity of retention can be improved.

又，上述凹部是朝著徑向外側或內側，及軸向另一方側開口，上述突起，具有：朝軸向一方側的第一面；朝著徑向的第二面；及朝軸向另一方側的第三面，上述爪，具有：與上述第一面相對的第四面，及與上述第二面相對的第五面，上述第二柱的軸向一方側的端面是以和上述第三面相對，並使上述爪從該端面突出為佳。根據此構成，使具有爪的各面與具有突起的各面相對，藉突起與爪的卡合，使保持器主體與第二環狀體在軸向成為不能分離。In addition, the recessed portion is opened toward the outside or inside in the radial direction and the other side in the axial direction, and the protrusion has: a first surface facing one side in the axial direction; a second surface facing in the radial direction; and another side facing in the axial direction. The third surface on one side, the claw, has a fourth surface opposite to the first surface, and a fifth surface opposite to the second surface. The end surface on one side in the axial direction of the second column is connected to the The third surface is opposite, and it is preferable that the claws protrude from the end surface. According to this configuration, each surface having the claws is opposed to each surface having the protrusions, and the engagement between the protrusions and the claws makes the holder main body and the second annular body inseparable in the axial direction.

根據本發明的其他樣態，滾動軸承具備：內圈、外圈、設置在上述內圈與上述外圈之間的複數滾動體，及保持上述複數滾動體的環狀的保持器，上述保持器具備上述的各構成。 　　根據該滾動軸承，在保持器的製造及組裝中，刪減藉軸構件連結保持器主體與第二環狀體用之孔加工或藉軸構件進行連結作業的工時，可降低工數。 [發明效果]According to another aspect of the present invention, a rolling bearing includes an inner ring, an outer ring, a plurality of rolling elements provided between the inner ring and the outer ring, and a ring-shaped cage holding the plurality of rolling elements, the cage including The above-mentioned components.　　 According to this rolling bearing, in the manufacturing and assembling of the cage, the number of man-hours for the hole machining for connecting the cage main body and the second annular body by the shaft member or the connection operation by the shaft member can be reduced, thereby reducing the number of work. [Effects of the invention]

根據本發明的樣態，在保持器的製造及組裝中，刪減藉軸構件連結保持器主體與第二環狀體用之孔加工或藉軸構件進行連結作業的工時，可降低工數。其結果，對保持器之成本降低(滾動軸承的成本降低)具有貢獻。According to the aspect of the present invention, in the manufacturing and assembly of the cage, the number of man-hours for the hole processing for connecting the holder main body and the second annular body by the shaft member or the connection operation by the shaft member can be reduced, and the number of labors can be reduced. . As a result, it contributes to the cost reduction of the cage (the cost reduction of the rolling bearing).

第1圖為滾動軸承的剖面圖。該滾動軸承10，具備：內圈11、外圈12、設置在該等內圈11與外圈12之間的複數滾動體，及保持該等複數滾動體的環狀的保持器14。本實施形態的滾動體為圓筒滾柱13，滾動軸承10為圓筒滾柱軸承。Figure 1 is a cross-sectional view of the rolling bearing. The rolling bearing 10 includes an inner ring 11, an outer ring 12, a plurality of rolling elements provided between the inner ring 11 and the outer ring 12, and an annular cage 14 that holds the plurality of rolling elements. The rolling element of this embodiment is a cylindrical roller 13, and the rolling bearing 10 is a cylindrical roller bearing.

本實施形態的內圈11具有：圓筒狀的內圈主體15，及環狀的突緣環16，在內圈主體15的軸向一方側排列突緣環16的狀態，組合該等構成內圈11。在內圈主體15的外圍側形成有圓筒滾柱13滾動接觸的內圈軌道面17，內圈主體15的軸向另一方側設有朝徑向外方突出的內突緣部18。本實施形態的外圈12為圓筒狀，在內周圍側形成有圓筒滾柱13滾動接觸的外圈軌道面19。在外圈12的軸向一方側與另一方側設有朝徑向內方突出的外突緣部19a、19b。本實施形態是將圓筒滾柱13兩列並排設置於軸向。兩列的圓筒滾柱13被以一個保持器14保持著。內圈11、外圈12及圓筒滾柱13是例如軸承鋼製。第1圖表示的滾動軸承10是作為軋鋼機之加壓輥推力用的軸承使用。The inner ring 11 of this embodiment has a cylindrical inner ring main body 15 and an annular flange ring 16. The flange ring 16 is arranged on one side of the inner ring main body 15 in the axial direction, and these structures are combined. Circle 11. An inner ring raceway surface 17 with which cylindrical rollers 13 roll in contact is formed on the outer peripheral side of the inner ring main body 15, and an inner flange portion 18 protruding radially outward is provided on the other axial side of the inner ring main body 15. The outer ring 12 of this embodiment has a cylindrical shape, and an outer ring raceway surface 19 with which the cylindrical roller 13 is in rolling contact is formed on the inner peripheral side. On one side and the other side in the axial direction of the outer ring 12, outer flange portions 19a, 19b protruding inward in the radial direction are provided. In this embodiment, two rows of cylindrical rollers 13 are arranged side by side in the axial direction. The two rows of cylindrical rollers 13 are held by a retainer 14. The inner ring 11, the outer ring 12, and the cylindrical roller 13 are made of, for example, bearing steel. The rolling bearing 10 shown in Fig. 1 is used as a bearing for the thrust of the pressure roll of a rolling mill.

第2圖是將環狀的保持器14平面展開的狀態的圖，從徑向外側看去時的圖。如第1圖第2圖表示，保持器14具有二分割構造。亦即，保持器14，具備：保持器主體20，具有：第一環狀體(第一環狀部)21及從該第一環狀體21朝軸向一方側延伸的複數的柱(柱部)22，第二環狀體30，設置在複數的柱22的軸向一方側。第一環狀體21為圓環狀，從此第一環狀體21的軸向一方側進一步朝軸向一方側呈直線狀延伸設置有柱22。第二環狀體30為圓環狀的構件。本實施形態的保持器主體20及第二環狀體30雖是銅合金(黃銅)製，但也可以是其他的金屬材料。保持器主體20與第二環狀體30是由其他構件所構成，雖在後也有說明藉鉚釘23(參閱第2圖)及爪31與突起34的卡合連結成一體。Fig. 2 is a view of a state where the ring-shaped retainer 14 is unfolded in a plane, and is a view when viewed from the outside in the radial direction. As shown in Fig. 1 and Fig. 2, the retainer 14 has a two-part structure. That is, the retainer 14 includes a retainer main body 20 having a first ring-shaped body (first ring-shaped portion) 21 and a plurality of columns (pillars) extending from the first ring-shaped body 21 toward one side in the axial direction. Section) 22, the second annular body 30, is provided on one side in the axial direction of the plurality of columns 22. The first annular body 21 has an annular shape, and a column 22 is linearly extended from one side in the axial direction of the first annular body 21 to one side in the axial direction. The second annular body 30 is an annular member. Although the holder main body 20 and the second annular body 30 of this embodiment are made of copper alloy (brass), they may be made of other metal materials. The holder main body 20 and the second annular body 30 are composed of other members, although it will be described later that they are integrally connected by rivets 23 (see FIG. 2) and the engagement of the claws 31 and the protrusions 34.

第2圖中，保持器14具備上述鉚釘23作為將保持器主體20與第二環狀體30軸向貫穿連結用的軸構件。鉚釘23具有：直線狀的軸部24，及設置在此軸部24的軸向一方側的直徑擴大後的頭部25。將軸部24插穿於設置在第二環狀體30的貫穿孔28及設置在保持器主體20的貫穿孔27，將軸向另一方側的端部鉚接(使彈性變形)以形成直徑擴大的鉚接部26，藉此，使得保持器主體20與第二環狀體30不能分離。並且，雖未圖示，也可採用細長的螺栓作為其他的軸構件來取代鉚釘23，將此螺栓插穿插穿上述貫穿孔27、28，藉著軸向一方側的螺栓頭部與在軸向另一方側螺合於該螺栓的螺帽，作為連結保持器主體20與第二環狀體30的構成。In FIG. 2, the retainer 14 includes the rivet 23 described above as a shaft member for axially penetrating and connecting the retainer main body 20 and the second annular body 30. The rivet 23 has a linear shaft portion 24 and a head portion 25 with an enlarged diameter provided on one side of the shaft portion 24 in the axial direction. The shaft portion 24 is inserted into the through hole 28 provided in the second annular body 30 and the through hole 27 provided in the retainer body 20, and the end on the other side in the axial direction is riveted (elastically deformed) to form an enlarged diameter The riveted part 26 of the squeezing part 26, thereby, the holder main body 20 and the second annular body 30 cannot be separated. Also, although not shown, a slender bolt can be used as another shaft member instead of the rivet 23, and the bolt can be inserted through the through holes 27 and 28. The nut screwed on the other side of the bolt serves as a structure that connects the holder main body 20 and the second annular body 30.

保持器主體20的第一貫穿孔27是軸向貫穿第一環狀體21及柱22。後面也有說明，但本實施形態中，第一貫穿孔27是設置在與鉚釘23同數的三處(參閱第3圖)。 　　第二貫穿孔28是軸向貫穿第二環狀體30。第二環狀體30中，第二貫穿孔28是與第一貫穿孔27同數且與第一貫穿孔27在同方向設置於相同位置。 　　該等貫穿孔27、28是比鉚釘23之軸部24的直徑稍微大直徑的孔。將鉚釘23的軸部24貫穿的柱22稱為第一柱22a。如第2圖表示，保持器14除了第一柱22a以外，具有第二柱22b及第三柱22c。針對第二柱22b及第三柱22c的構成在後說明。The first through hole 27 of the holder main body 20 penetrates the first annular body 21 and the column 22 in the axial direction. It will be described later, but in this embodiment, the first through holes 27 are provided in the same number of three places as the rivets 23 (see Fig. 3). The “second through hole 28” penetrates the second annular body 30 in the axial direction. In the second annular body 30, the second through holes 28 are the same number as the first through holes 27 and are provided at the same position in the same direction as the first through holes 27.　　 The through holes 27 and 28 are holes having a diameter slightly larger than the diameter of the shaft portion 24 of the rivet 23. The column 22 through which the shaft portion 24 of the rivet 23 penetrates is referred to as a first column 22a. As shown in FIG. 2, the holder 14 has a second column 22b and a third column 22c in addition to the first column 22a. The configuration of the second column 22b and the third column 22c will be described later.

第3圖是從軸向一方側觀看保持器主體20的圖。本實施形態的保持器主體20具有15支的柱22，其中，形成有貫穿孔27的第一柱22a為三支。第一柱22a是沿著周圍方向均等地(本實施形態為分開120度)配置。並且，15支的柱22之中六支為第二柱22b，其他的六支為第三柱22c。一支第一柱22a與其他的第一柱22a之間，設有第二柱22b及第三柱22c。本實施形態是在一支第一柱22a與其他的第一柱22a之間，設有兩支第二柱22b及兩支第三柱22c。並且，柱22的數量根據滾動軸承10的型號(大小)有所不同，又，第一柱22a、第二柱22b及第三柱22c之分別的數量及周圍方向的配置，也可以如第3圖表示的形態以外。但是，針對第一柱22a及第二柱22b可分別分散於周圍方向(均等地配置)，如第3圖表示的形態，也可以複數支(兩支)的第二柱22b為一組，將其組分散於周圍方向(也可均等地配置)。Fig. 3 is a view of the holder main body 20 viewed from one side in the axial direction. The holder main body 20 of this embodiment has 15 pillars 22, among them, the first pillar 22a in which the through-hole 27 is formed is three pillars. The first pillars 22a are evenly arranged along the peripheral direction (in this embodiment, they are separated by 120 degrees). In addition, six of the 15 pillars 22 are the second pillars 22b, and the other six pillars are the third pillars 22c. A second column 22b and a third column 22c are provided between one first column 22a and the other first columns 22a. In this embodiment, two second columns 22b and two third columns 22c are provided between one first column 22a and the other first columns 22a. In addition, the number of columns 22 differs according to the model (size) of the rolling bearing 10. In addition, the respective numbers of the first column 22a, the second column 22b, and the third column 22c and the arrangement in the peripheral direction may be as shown in Fig. 3 Other than the displayed form. However, the first pillars 22a and the second pillars 22b can be dispersed in the surrounding direction (equally arranged), as shown in Fig. 3, or a plurality of (two) second pillars 22b can be grouped together. The groups are dispersed in the surrounding direction (it can also be arranged equally).

如第2圖及第3圖表示，第二柱22b在軸向一方側的端部具有爪31。第4圖是表示第二柱22b及第二環狀體30之一部份的透視圖。在第二環狀體30之中與第二柱22b連結的部份32，形成有收容爪31的凹部33，在該凹部33的一部份設有與爪31卡合的突起34。凹部33(及突起34)是與第二柱22b同數並與第二柱22b在周圍方向設置於相同的位置。保持器主體20具有的第二柱22b的爪31卡合於形成在第二環狀體30之凹部33的突起34，藉此連結該等保持器主體20與第二環狀體30，在軸向形成不能分離。As shown in FIGS. 2 and 3, the second column 22b has a claw 31 at an end on one side in the axial direction. FIG. 4 is a perspective view showing a part of the second column 22b and the second ring body 30. As shown in FIG. In the portion 32 of the second ring body 30 that is connected to the second column 22b, a recess 33 for accommodating the claw 31 is formed, and a protrusion 34 that engages with the claw 31 is provided in a part of the recess 33. The recess 33 (and the protrusion 34) is the same number as the second pillar 22b and is provided at the same position in the peripheral direction as the second pillar 22b. The claw 31 of the second post 22b of the holder main body 20 is engaged with the protrusion 34 formed in the recess 33 of the second annular body 30, thereby connecting the holder main body 20 and the second annular body 30. To form cannot be separated.

如第4圖表示，在第二環狀體30中，凹部33是至少朝著徑向外側及軸向另一方側開口，本實施形態是進一步朝著軸向一方側開口。亦即，凹部33是使第二環狀體30殘留其內周圍側成軸向貫穿。在此凹部33周圍方向的一部份設有突起34。並且，本實施形態是在凹部33中，設有軸向貫穿於周圍方向一方側的間隔(空間部)35，在其周圍方向另一方側設有成為軸向的隔壁的突起34。As shown in Fig. 4, in the second annular body 30, the recess 33 is opened toward at least the radially outer side and the other axial side, and the present embodiment is further opened toward one axial side. That is, the recess 33 allows the second annular body 30 to pass through in the axial direction while leaving the inner and peripheral sides thereof. A protrusion 34 is provided in a part of the circumferential direction of the recess 33. In addition, in the present embodiment, the recess 33 is provided with a space (space portion) 35 axially penetrating one side in the peripheral direction, and a protrusion 34 serving as a partition wall in the axial direction is provided on the other side in the peripheral direction.

第5(A)圖及第5(B)圖是沿著周圍方向觀看保持器14的一部份(第二柱22b及其周圍)的剖面圖，第5(A)圖是表示爪31與突起34卡合前的狀態(非卡合狀態)，第5(B)圖是表示爪31與突起34卡合後的狀態。 　　突起34具備長方體乃至立方體形狀，具有：朝軸向一方側的第一面36；朝徑向外側的第二面37；及朝軸向另一方側的第三面38。 　　相對於此，爪31，具有：從第二柱22b的軸向一方側的端面41朝徑向一方側突出的軸向突出部42，及從此軸向突出部42的軸向一方側的前方部朝徑向內方側突出的徑向突出部43。藉此，在爪31卡合於突起34的狀態下(參閱第5(B)圖)，爪31成為具有與第一面36相對的第四面39及與第二面37相對的第五面40的構成。並且，第二柱22b的軸向一方側的端面41與第三面38相對。第四面39為徑向突出部43的軸向另一方側的面，第五面40為軸向突出部42的徑向內側的面。Fig. 5(A) and Fig. 5(B) are cross-sectional views of a part of the holder 14 (the second column 22b and its surroundings) viewed along the peripheral direction, and Fig. 5(A) shows the claw 31 and The state before the protrusion 34 is engaged (non-engagement state), and FIG. 5(B) shows the state after the claw 31 and the protrusion 34 are engaged. The “protrusion 34” has a rectangular parallelepiped or cubic shape, and has a first surface 36 on one side in the axial direction; a second surface 37 on the outside in the radial direction; and a third surface 38 on the other side in the axial direction. On the other hand, the claw 31 has an axial protrusion 42 protruding to one side in the radial direction from the end surface 41 on one axial side of the second column 22b, and a front portion on one axial side from the axial protrusion 42 The radial protrusion 43 protrudes toward the radially inward side. Thereby, in the state where the claw 31 is engaged with the protrusion 34 (refer to FIG. 5(B)), the claw 31 has a fourth surface 39 opposed to the first surface 36 and a fifth surface opposed to the second surface 37 The composition of 40. In addition, the end surface 41 on one axial side of the second column 22b faces the third surface 38. The fourth surface 39 is a surface on the other axial side of the radial protrusion 43, and the fifth surface 40 is a surface on the radial inner side of the axial protrusion 42.

如第5(B)圖表示，在爪31卡合於突起34的狀態，第一面36與第四面39成為可面接觸，第二面37與第五面40成為可面接觸，第二柱22b的軸向一方側的端面41與第三面38成為可面接觸。在第四面39與第二柱22b的端面41之間隔著突起34，藉以使第二柱22b與第二環狀體30形成軸向不能分離地連結，使第五面40與第二面37接觸，藉此進行柱22b與第二環狀體30彼此的徑向的定位。As shown in Fig. 5(B), in the state where the claw 31 is engaged with the protrusion 34, the first surface 36 and the fourth surface 39 are in surface contact, the second surface 37 and the fifth surface 40 are in surface contact, and the second surface The end surface 41 on one axial side of the column 22b and the third surface 38 are in surface contact. A protrusion 34 is interposed between the fourth surface 39 and the end surface 41 of the second column 22b, so that the second column 22b and the second annular body 30 are axially inseparably connected, so that the fifth surface 40 and the second surface 37 The contact, thereby positioning the column 22b and the second annular body 30 in the radial direction with respect to each other.

如第2圖及第3圖表示，第三柱22c在軸向一側，未設置第二柱22b具有的爪31，又，如第一柱22a未形成有鉚釘22用的貫穿孔27，第三柱22c的軸向一方側的端面44形成沿著朝環狀的保持器14的中心軸C1(參閱第3圖)直行的平面的平滑面。並且，第二環狀體30的軸向另一方側的側面之中，與第三柱22c的上述端面44相對的面45(參閱第2圖)，也是形成沿著朝上述中心軸C1直行的平面的平滑面。在保持器主體20與第二環狀體30藉著上述鉚釘23及上述爪31與上述突起34卡合成連結的狀態，第三柱22c的軸向一方側的上述端面44與第二環狀體30的軸向另一方側的上述面45是處於接觸的狀態，第三柱22c與第二環狀體30並未連結。第三柱22c形成從第一環狀體21朝軸向一方側延伸的單懸臂狀。並且，第三柱22c及第一環狀體21的剛性高，例如即使圓筒滾柱13與第三柱22c接觸，仍可抵抗其接觸產生的抗力。As shown in Figures 2 and 3, the third column 22c is on one side in the axial direction, and the claw 31 of the second column 22b is not provided. Also, if the first column 22a is not formed with the through hole 27 for the rivet 22, the first column 22a is not formed with the through hole 27 for the rivet 22. The end surface 44 on one side in the axial direction of the three pillars 22c forms a smooth surface along a plane that runs straight toward the central axis C1 (see FIG. 3) of the ring-shaped retainer 14. In addition, among the side surfaces on the other side in the axial direction of the second annular body 30, a surface 45 (refer to FIG. 2) facing the end surface 44 of the third column 22c is also formed along a straight line toward the center axis C1. The smooth surface of the plane. In a state where the retainer body 20 and the second annular body 30 are engaged and connected by the rivets 23 and the claws 31 and the protrusions 34, the end face 44 on one axial side of the third column 22c and the second annular body The surface 45 on the other side in the axial direction of 30 is in a contact state, and the third column 22c and the second annular body 30 are not connected. The third column 22c is formed in a single cantilever shape extending from the first annular body 21 toward one side in the axial direction. In addition, the third column 22c and the first annular body 21 have high rigidity. For example, even if the cylindrical roller 13 is in contact with the third column 22c, they can still resist the resistance generated by the contact.

以藉著鉚釘23及爪31與突起34的卡合連結保持器主體20與第二環狀體30的狀態，使第一環狀體21與第二環狀體30之間且在周圍方向鄰接的柱22、22之間的空間29成為保持著滾動體之圓筒滾柱13(參閱第1圖)的口袋。The retainer body 20 and the second ring body 30 are connected by the engagement of the rivet 23 and the claw 31 with the protrusion 34, so that the first ring body 21 and the second ring body 30 are adjacent to each other in the peripheral direction The space 29 between the columns 22 and 22 becomes a pocket for the cylindrical roller 13 (see Figure 1) that holds the rolling element.

如以上說明，保持器14中，連結保持器主體20與第二環狀體30用的鉚釘23的數量(全數)是比柱22的數量(全數)少，本實施形態中，相對於柱22為15支鉚釘23為3支。並且，在該等15支的柱22，包括：形成有鉚釘23的軸部24插穿之第1貫穿孔27的第一柱22a，及在軸向一方側的端部具有爪31的第二柱22b。此外，本實施形態中，在總數為15支的柱22，軸向一方側的端面44雖可接觸於第二環狀體30的軸向另一方側的面45，但包括與第二環狀體30為非連結狀態的第三柱22c。As explained above, in the retainer 14, the number (full number) of the rivets 23 for connecting the retainer main body 20 and the second annular body 30 is less than the number (full number) of the posts 22. In this embodiment, the number of rivets 23 is less than the number of the posts 22. There are 15 rivets and 23 are 3 rivets. In addition, the 15 columns 22 include a first column 22a having a first through hole 27 through which the shaft 24 of the rivet 23 is inserted, and a second column 22a having a claw 31 at one end in the axial direction.柱22b. In addition, in this embodiment, in the total of 15 columns 22, although the end surface 44 on one axial side can contact the surface 45 on the other axial side of the second annular body 30, it includes The body 30 is the third column 22c in a non-connected state.

如上述，在保持器14具有的15支的柱22，包括：藉鉚釘23貫穿與第二環狀體30連結的第一柱22a，及藉著爪31與突起34的卡合與第二環狀體30連結的第二柱22b。亦即，由於連結保持器主體20與第二環狀體30，因此沒有將鉚釘23插穿15支所有的柱22的必要，只需在15支的柱22的一部份的第一柱22a中插穿鉚釘23，在其他的第二柱22b卡合爪31與突起34即可。As described above, the 15 posts 22 provided in the retainer 14 include: the first post 22a connected to the second ring body 30 by the rivet 23, and the second ring by the engagement of the claw 31 and the protrusion 34 The second column 22b connected to the shaped body 30. That is, because the holder main body 20 and the second annular body 30 are connected, there is no need to insert the rivet 23 through all the 15 posts 22, and only the first post 22a of a part of the 15 posts 22 is needed. The rivet 23 is inserted in the middle, and the claw 31 and the protrusion 34 are engaged with the other second post 22b.

因此，在15支所有的柱22，及對應該等所有的柱22之第一環狀體21及第二環狀體30分別的部份，沒有形成插穿鉚釘23的貫穿孔27、28的必要，只要在三支第一柱22a與第一環狀體21及第二環狀體30之中，僅位在此三支的第一柱22a的軸向相鄰的部份，形成貫穿孔27、28即可。並且，使用鉚釘23是僅對應三支第一柱22a的三處。藉此，刪減以鉚釘23連結保持器主體20與第二環狀體30用之孔加工或鉚接作業的工時，可降低保持器14的製造及組裝的工數。其結果，對於保持器14的降低成本，進而對具備此保持器14之滾動軸承10的降低成本有所貢獻。Therefore, in all the 15 posts 22 and the respective parts of the first ring body 21 and the second ring body 30 corresponding to all the posts 22, there is no through hole 27, 28 through which the rivet 23 is inserted. If necessary, as long as the three first pillars 22a and the first annular body 21 and the second annular body 30 are located only in the axially adjacent parts of the three first pillars 22a, a through hole is formed 27, 28 are fine. In addition, the rivets 23 are used in only three places corresponding to the three first posts 22a. As a result, the number of man-hours for hole processing or riveting for connecting the holder main body 20 and the second annular body 30 with the rivet 23 can be reduced, and the number of steps for manufacturing and assembling the holder 14 can be reduced. As a result, it contributes to the cost reduction of the cage 14 and further to the cost reduction of the rolling bearing 10 provided with this cage 14.

尤其是本實施形態(參閱第2圖及第3圖)是載第三柱22c中，軸向一方側的端面44雖可與第二環狀體30的軸向另一方側的面45接觸，但是與第二環狀體30為非連結狀態。如上述，在15支的柱22之中，除第一柱22a及第二柱22b之外，並包括第三柱22c，使用鉚釘23減少保持器主體20與第二環狀體30的連結處。亦即，15支的柱22之中，一部份(6支)是藉著爪31及突起34與第二環狀體30連結的第二柱22b，其他殘餘的全數(9支)較使用鉚釘23的第一柱22a的場合，如本實施形態，進一步包括(三支)第三柱22c，而可減少使用鉚釘23之第一柱22a的數量。藉此，可更進一步降低保持器14的製造及組裝工數。In particular, in this embodiment (see FIGS. 2 and 3), in the third column 22c, the end surface 44 on one side in the axial direction can be in contact with the surface 45 on the other side in the axial direction of the second annular body 30. However, it is in a non-connected state with the second ring body 30. As mentioned above, among the 15 columns 22, in addition to the first column 22a and the second column 22b, and the third column 22c, the rivet 23 is used to reduce the connection between the holder body 20 and the second ring body 30 . That is, among the 15 posts 22, a part (6 posts) is the second post 22b connected to the second ring body 30 by the claws 31 and the protrusions 34, and the rest (9 posts) are better used In the case of the first post 22a of the rivet 23, as in this embodiment, the third post 22c is further included (three), so that the number of the first post 22a using the rivet 23 can be reduced. Thereby, the number of manufacturing and assembling steps of the holder 14 can be further reduced.

在此，針對保持器14與圓筒滾柱13的組裝說明。 　　首先，保持器主體20中，在周圍方向相鄰的柱22、22之間，配置圓筒滾柱13。本實施形態是如第3圖表示，朝各柱22的周圍方向的側面47是比圓筒滾柱13半徑稍微大的圓弧面形狀，設置在柱22、22之間的圓筒滾柱13是形成徑向不能脫落的狀態。Here, the assembly of the cage 14 and the cylindrical roller 13 will be described.　　 First, in the cage main body 20, the cylindrical roller 13 is arranged between the columns 22 and 22 adjacent in the peripheral direction. In this embodiment, as shown in Fig. 3, the side surface 47 facing the circumference of each column 22 has an arc surface shape with a radius slightly larger than that of the cylindrical roller 13, and the cylindrical roller 13 is arranged between the columns 22 and 22. It is in a state where it cannot fall off in the radial direction.

如以上在組合保持器主體20與圓筒滾柱13的狀態，將第二環狀體30定位於保持器主體20的軸向一方側。此時，如第6圖表示，成為將第二柱22b的爪31***第二環狀體30的凹部33之中設置於突起34的周圍方向一方側相鄰的上述間隔35的狀態。第6圖是從軸向一方側觀看保持器14的一部份的圖。並且，相對於保持器主體20(第二柱部22b)使第二環狀體30相對地朝著周圍方向一方側(第6圖的箭頭R方向)旋轉時，可使爪31與突起34卡合。As described above, in the state where the cage main body 20 and the cylindrical roller 13 are combined, the second annular body 30 is positioned on one side of the cage main body 20 in the axial direction. At this time, as shown in FIG. 6, the claw 31 of the second column 22 b is inserted into the recess 33 of the second annular body 30 and is provided at the aforementioned space 35 adjacent to one side in the peripheral direction of the protrusion 34. Fig. 6 is a view of a part of the retainer 14 viewed from one side in the axial direction. In addition, when the second annular body 30 is relatively rotated toward one side in the peripheral direction (in the direction of arrow R in FIG. 6) with respect to the holder body 20 (second column portion 22b), the claw 31 can be engaged with the protrusion 34 Together.

在此狀態下(參閱第2圖)，形成在保持器主體20側的第一貫穿孔27與形成在第二環狀體30側的第二貫穿孔28成為同相位(在周圍方向相同位置)，將鉚釘23插穿該等貫穿孔27、28，進行鉚釘23的端部鉚接加工，使得鉚釘23不致脫落。藉此，保持器主體20與第二環狀體30成為不能相對旋轉，使得爪31與突起34的卡合成為不能鬆脫的狀態。 　　如上述，本實施形態是在凹部33中，在突起34的周圍方向一方側的旁邊，設有爪31可軸向***的間隔35，藉此容易利用爪31與突起34的卡合進行保持器14的組裝，並且，完成組裝時，藉著爪31與突起34的卡合機構式地結合保持器主體20與第二環狀體30，提升保持器14的剛性。In this state (refer to Figure 2), the first through hole 27 formed on the side of the holder body 20 and the second through hole 28 formed on the side of the second annular body 30 are in the same phase (the same position in the peripheral direction) , The rivet 23 is inserted through the through holes 27 and 28, and the end of the rivet 23 is riveted, so that the rivet 23 will not fall off. Thereby, the holder main body 20 and the second annular body 30 cannot rotate relative to each other, so that the engagement between the claw 31 and the protrusion 34 becomes an unreleasable state. As described above, in the present embodiment, in the recess 33, a space 35 into which the claw 31 can be inserted axially is provided on the side of one side in the peripheral direction of the protrusion 34, thereby making it easy to use the engagement of the claw 31 and the protrusion 34 to hold 14 is assembled, and when the assembly is completed, the holder main body 20 and the second ring body 30 are combined by the engagement mechanism of the claw 31 and the protrusion 34 to increase the rigidity of the holder 14.

上述實施形態中(參閱第4圖)，形成於第二環狀體30的凹部33雖是朝徑向外側開口，但也可以朝徑向內側開口。此時，第2圖是從徑向內側觀看保持器14時的圖，在此一場合，也可具有與上述實施形態相同的功能。In the above-mentioned embodiment (see FIG. 4), the recess 33 formed in the second annular body 30 is opened radially outward, but it may be opened radially inward. At this time, Fig. 2 is a view when the retainer 14 is viewed from the inside in the radial direction. In this case, the same function as the above-mentioned embodiment may also be provided.

第7圖是表示第二柱22b的爪31，及第二環狀體30之凹部33的突起34的變形例的圖，從徑向外側觀看保持器14的一部份的圖。在該第7圖表示的形態中，也在凹部33的周圍方向一部份設有突起34。又，該凹部33中，在周圍方向一方側設有貫穿軸向的間隔35，在其周圍方向另一方側設有成為軸向的屏壁的突起34。突起34具備長方體乃至立方體形狀，具有：朝軸向一方側的第一面36；朝周圍方向一方側的第二面37；及朝軸向另一方側的第三面38。相對於此，爪31，具有：從第二柱22b的軸向一方側的端面41更朝軸向一方側突出的軸向突出部42，及從此軸向突出部42的軸向一方側的前方部朝周圍方向另一方側突出的周圍方向突出部46。藉此，爪31成為具有與第一面36相對的第四面39及與第二面37相對的第五面40的構成。並且，第二柱22b的軸向一方側的端面41與第三面38相對。FIG. 7 is a diagram showing a modification of the claw 31 of the second column 22b and the protrusion 34 of the concave portion 33 of the second ring body 30, and a part of the retainer 14 is viewed from the outside in the radial direction. In the form shown in FIG. 7, a protrusion 34 is also provided in a part of the peripheral direction of the recess 33. In addition, in the recess 33, a space 35 penetrating the axial direction is provided on one side in the peripheral direction, and a protrusion 34 serving as a barrier wall in the axial direction is provided on the other side in the peripheral direction. The protrusion 34 has a rectangular parallelepiped or cubic shape, and has a first surface 36 on one side in the axial direction; a second surface 37 on one side in the peripheral direction; and a third surface 38 on the other side in the axial direction. On the other hand, the claw 31 has an axial protrusion 42 protruding further toward one axial side from the end surface 41 on one axial side of the second column 22b, and a front from the axial one side of the axial protrusion 42 A peripheral direction projecting portion 46 that projects toward the other side in the peripheral direction. Thereby, the claw 31 has a fourth surface 39 opposed to the first surface 36 and a fifth surface 40 opposed to the second surface 37. In addition, the end surface 41 on one axial side of the second column 22b faces the third surface 38.

在爪31卡合於突起34的狀態，第一面36與第四面39成為可面接觸，第二面37與第五面40成為可面接觸，第二柱22的軸向一方側的端面41與第三面38成為可面接觸。在第四面39與第二柱22b的端面41之間隔著突起34，藉以使第二柱22b與第二環狀體30形成軸向不能分離地連結。並且，凹部33中，在突起34的周圍方向一方側的旁邊，設有爪31可軸向***的間隔35，因此與第5(A)圖及第5(B)圖與第6圖表示的形態的場合相同，組裝變得容易，並且，以鉚釘23連結保持器主體20與第二環狀體30時，使得爪31與突起34的卡合成為不能鬆脫的狀態。In the state where the claw 31 is engaged with the protrusion 34, the first surface 36 and the fourth surface 39 are in surface contact, the second surface 37 and the fifth surface 40 are in surface contact, and the end surface on one side in the axial direction of the second column 22 41 and the third surface 38 are in surface contact. A protrusion 34 is interposed between the fourth surface 39 and the end surface 41 of the second column 22b, so that the second column 22b and the second annular body 30 are inseparably connected in the axial direction. In addition, in the recess 33, a space 35 into which the claw 31 can be inserted in the axial direction is provided beside the protrusion 34 on one side in the circumferential direction, so it is similar to that shown in Figs. 5(A), 5(B) and 6 In the case of the same form, the assembly becomes easy, and when the holder main body 20 and the second ring body 30 are connected by the rivet 23, the engagement of the claw 31 and the protrusion 34 is made into a non-releasable state.

如以上揭示的實施形態雖是以所有的點加以例示但不限於此。亦即，本發明的保持器及滾動軸承是不限於圖示的形態，在本發明的範圍內也可以是其他的形態。例如，爪31與突起34也可以是圖示的形態(關於突起34為長方體乃至立方體)以外。 　　上述實施形態的保持器14針對除了第一柱22a及第二柱22b之外並具有第三柱22c的場合已作說明，但也可不具有第三柱22c。亦即，也可以複數的柱22之中的一部份為第一柱22a，其他為第二柱22b。 　　第1圖表示的形態中，滾動體的圓筒滾柱13雖是在軸向成兩列排列的構成，但也可以一列。並且，內圈11與外圈12也可以是其他的形態。保持器14是除了圓筒滾柱13之外，也可以保持圓錐滾柱或針狀滾柱等，並且，也可以是自動調心滾柱軸承用的保持器。 　　又，具備本發明之保持器的滾動軸承，也可以是軋鋼機之加壓輥推力用的軸承用以外。Although the embodiment disclosed above is exemplified in all points, it is not limited to this. That is, the cage and rolling bearing of the present invention are not limited to the form shown in the drawings, and other forms may be adopted within the scope of the present invention. For example, the claw 31 and the protrusion 34 may be other than the illustrated form (the protrusion 34 is a rectangular parallelepiped or a cube). "The holder 14 of the aforementioned embodiment has been described for the case where it has the third post 22c in addition to the first post 22a and the second post 22b, but it does not have to have the third post 22c. That is, a part of the plurality of pillars 22 may be the first pillar 22a, and the others may be the second pillar 22b.　　 In the form shown in Fig. 1, although the cylindrical rollers 13 of the rolling elements are arranged in two rows in the axial direction, they may be arranged in one row. In addition, the inner ring 11 and the outer ring 12 may have other forms. The cage 14 may hold a tapered roller, a needle roller, etc., in addition to the cylindrical roller 13, and may be a cage for a self-aligning roller bearing. "Furthermore, the rolling bearing provided with the retainer of the present invention may be used in addition to the bearing for the thrust of the pressure roll of the rolling mill.

本申請案是依據2017年8月3日申請的日本特許申請案(特願2017-150922)的記載，其內容是參閱此後納入。This application is based on the description of the Japanese patent application (Japanese Patent Application 2017-150922) filed on August 3, 2017, and the content is incorporated hereafter.

10‧‧‧滾動軸承(滾動體)11‧‧‧內圈12‧‧‧外圈13‧‧‧圓筒滾柱(滾動體)14‧‧‧保持器20‧‧‧保持器主體21‧‧‧第一環狀體22‧‧‧柱22a‧‧‧第一柱22b‧‧‧第二柱22c‧‧‧第三柱23‧‧‧鉚釘(軸構件)27‧‧‧第一貫穿孔28‧‧‧第二貫穿孔29‧‧‧空間30‧‧‧第二環狀體31‧‧‧爪32‧‧‧與第二柱連結的部份33‧‧‧凹部34‧‧‧突起35‧‧‧間隔36‧‧‧第一面37‧‧‧第二面38‧‧‧第三面39‧‧‧第四面40‧‧‧第五面41‧‧‧端面45‧‧‧面10‧‧‧Rolling bearing (rolling element) 11‧‧‧Inner ring 12‧‧‧Outer ring 13‧‧‧Cylinder roller (rolling element)14‧‧‧Cage 20‧‧‧Cage body 21‧‧‧ First ring body 22‧‧‧Column 22a‧‧‧First column 22b‧‧‧Second column 22c‧‧‧Third column 23‧‧‧Rivet (shaft member) 27‧‧‧First through hole 28‧ ‧‧Second through hole 29‧‧‧Space 30‧‧‧Second ring body 31‧‧‧Claw 32‧‧‧Part 33‧‧‧Connecting with the second column 33‧‧‧Concave 34‧‧‧Protrusion 35‧‧ ‧Interval 36‧‧‧First surface 37‧‧‧Second surface 38‧‧‧Third surface 39‧‧‧Fourth surface 40‧‧‧Fifth surface 41‧‧‧End surface 45‧‧‧ Surface

第1圖為滾動軸承的剖面圖。 　　第2圖為平面展開環狀之保持器的狀態的圖，從徑向外側看去時的圖。 　　第3圖是從軸向一方側觀看保持器主體的圖。 　　第4圖是表示第二柱及第二環狀體之一部份的透視圖。 　　第5(A)圖及第5(B)圖是沿著周圍方向觀看保持器的一部份的剖面圖，第5(A)圖是表示爪與突起卡合前的狀態(非卡合狀態)，第5(B)圖是表示爪與突起卡合後的狀態。 　　第6圖是從軸向一方側觀看保持器的一部份的圖。 　　第7圖是表示第二柱的爪，及第二環狀體之凹部的突起的變形例的圖。 　　第8圖是表示習知的保持例之一部份的透視圖。Figure 1 is a cross-sectional view of the rolling bearing.　　 The second figure is a diagram of the state in which the ring-shaped retainer is expanded in a plane, when viewed from the outside in the radial direction.　　 Figure 3 is a view of the retainer body viewed from one side in the axial direction.　　 Figure 4 is a perspective view showing a part of the second column and the second ring body. Figures 5(A) and 5(B) are cross-sectional views of a part of the retainer viewed from the surrounding direction, and Figure 5(A) shows the state before the claw and the protrusion are engaged (non-engaged state) ), Figure 5(B) shows the state after the claws are engaged with the protrusions.　　 Figure 6 is a view of a part of the retainer viewed from one side in the axial direction.　　 Figure 7 is a diagram showing a modification example of the claws of the second column and the protrusions of the concave portion of the second annular body.　　 Figure 8 is a perspective view showing a part of a conventional retention example.

14‧‧‧保持器 14‧‧‧Retainer

20‧‧‧保持器主體 20‧‧‧Main body of retainer

21‧‧‧第一環狀體 21‧‧‧The first ring

22‧‧‧柱 22‧‧‧Column

22a‧‧‧第一柱 22a‧‧‧First Pillar

22b‧‧‧第二柱 22b‧‧‧Second Column

22c‧‧‧第三柱 22c‧‧‧third pillar

23‧‧‧鉚釘 23‧‧‧Rivets

24‧‧‧軸部 24‧‧‧Shaft

25‧‧‧頭部 25‧‧‧Head

26‧‧‧鉚接部 26‧‧‧Riveting part

27‧‧‧第一貫穿孔 27‧‧‧First through hole

28‧‧‧第二貫穿孔 28‧‧‧Second through hole

29‧‧‧空間 29‧‧‧Space

30‧‧‧第二環狀體 30‧‧‧Second Ring

31‧‧‧爪 31‧‧‧Claw

32‧‧‧與第二柱連結的部份 32‧‧‧The part connected to the second column

33‧‧‧凹部 33‧‧‧Concave

34‧‧‧突起 34‧‧‧Protrusion

35‧‧‧間隔 35‧‧‧Interval

44‧‧‧端面 44‧‧‧end face

45‧‧‧面 45‧‧‧Noodles

Claims (5)

一種保持器，具備：保持器主體，具有第一環狀體及從該第一環狀體朝軸向一方側延伸的複數的柱；第二環狀體，設置在複數上述柱的軸向一方側；及軸構件，較上述柱的數量少，用於軸向貫穿上述保持器主體與上述第二環狀體並連結，位於上述第一環狀體與上述第二環狀體之間在周圍方向彼此相鄰的上述柱之間的空間形成保持滾動體的口袋，上述複數的柱，包括：第一柱，形成有插穿上述軸構件的貫穿孔，及第二柱，在軸向一方側的端部具有爪，上述第二環狀體在與上述第二柱連結的部份，具有收容上述爪的凹部，在該凹部的一部分設有與上述爪卡合的突起；上述第二柱與上述第二環狀體是以上述爪與上述突起卡合，並且上述第一柱與上述第二環狀體是將上述軸構件的端部鉚接加工而連結。 A retainer comprising: a retainer body having a first annular body and a plurality of columns extending from the first annular body toward one side in the axial direction; and a second annular body provided on one side of the axial direction of the plurality of columns Side; and shaft members, the number of which is less than the number of the above-mentioned posts, for axially penetrating the holder main body and the second ring-shaped body and connecting, located between the first ring-shaped body and the second ring-shaped body in the surrounding The spaces between the columns adjacent to each other in directions form pockets for holding the rolling elements. The plurality of columns includes a first column with a through hole through which the shaft member is inserted, and a second column on one side in the axial direction. The end of the second ring has a claw, and the second ring-shaped body has a recess for accommodating the claw at the portion connected to the second post, and a part of the recess is provided with a protrusion that engages with the claw; the second post and The second annular body is engaged with the protrusion with the claw, and the first post and the second annular body are connected by caulking the end of the shaft member. 如申請專利範圍第1項記載的保持器，其中，上述複數的柱，進一步包括軸向一方側的端面可接觸於上述第二環狀體的軸向另一方側的面並與該第二環狀體成為非連結狀態的第三柱。 The retainer described in claim 1, wherein the plurality of posts further include an end surface on one side in the axial direction that can contact the surface on the other side in the axial direction of the second ring body and interact with the second ring The shape body becomes the third column in a non-connected state. 如申請專利範圍第1項或第2項記載的保持器，其中，上述凹部在上述突起的周圍方向一方側的旁邊，包括可將上述爪軸向***的間隔。 The retainer described in claim 1 or 2, wherein the recess includes a space on one side in the peripheral direction of the protrusion that allows the claw to be inserted in the axial direction. 如申請專利範圍第1項或第2項記載的保持器，其中，上述凹部朝著徑向外側或內側，及軸向另一方側開口，上述突起，具有：朝軸向一方側的第一面；朝著徑向的第二面；及朝軸向另一方側的第三面，上述爪，具有：與上述第一面相對的第四面，及與上述第二面相對的第五面，上述第二柱的軸向一方側的端面以和上述第三面相對，並使上述爪從該端面突出。 The retainer described in item 1 or item 2 of the scope of patent application, wherein the recessed portion is opened toward the outside or inside in the radial direction, and the other side in the axial direction, and the protrusion has a first surface facing one side in the axial direction ; A second surface facing in the radial direction; and a third surface facing the other side in the axial direction. The claw has a fourth surface opposite to the first surface, and a fifth surface opposite to the second surface, An end surface on one side in the axial direction of the second column is opposed to the third surface, and the claws protrude from the end surface. 一種滾動軸承，具備：內圈、外圈、設置在上述內圈與上述外圈之間的複數滾動體，及保持上述複數滾動體的環狀的保持器，上述保持器為申請專利範圍第1項~第4項中任一項記載的保持器。 A rolling bearing comprising: an inner ring, an outer ring, a plurality of rolling elements provided between the inner ring and the outer ring, and a ring-shaped cage holding the plurality of rolling elements, the cage being the first item in the scope of patent application ~ Any of the holders described in item 4.
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