A rolling element assembly die for cylindrical roller bearings

Abstract

An embodiment of the present invention discloses an assembly die for rolling elements of a cylindrical roller bearing, which includes a base and an outer ring support block group that cooperate with each other; the base is provided with a lower support table and a convex platform, and a plurality of guide grooves are formed on the outer peripheral surface of the convex platform; the outer ring support block group, in the assembled state, the outer ring support block group is assembled on the lower support table of the base in a spliced manner and is concentrically located outside the convex platform, forming an upper support table, and a cavity is formed between its periphery and the outer periphery of the convex platform for accommodating and supporting the bearing outer ring; in the separated state, the outer ring support block group is separated from between the lower support table and the lower end surface of the bearing outer ring, and the bearing outer ring and the cylindrical rollers move downward simultaneously under the action of gravity. The lower end surface of the bearing outer ring cooperates with the lower support table, and the cylindrical rollers are assembled in the raceway under the combined action of the guide grooves and the raceway of the bearing outer ring. In the embodiment of the present invention, the cylindrical rollers can be conveniently, quickly and efficiently assembled in the raceway of the bearing outer ring.

Description

Technical Field:

[0001] The present invention relates to a bearing rolling element assembly die, and in particular to a cylindrical roller bearing rolling element assembly die. Background Art:

[0002] For existing cylindrical roller bearings with double flanges, the assembly method of their cylindrical rollers is generally manual. First, a cage is placed inside the bearing outer ring, and then the cylindrical rollers are individually placed into the pockets of the cage. When placing the cylindrical rollers, it is necessary to avoid the cage pocket crossbeams from hindering the rollers from entering the bearing outer ring raceway. This assembly method has low efficiency and high requirements for the operator's proficiency. Summary of the Invention:

[0003] To overcome the problem of low rolling element assembly efficiency in existing cylindrical roller bearings with double flanges, an embodiment of the present invention provides a cylindrical roller bearing rolling element assembly die.

[0004] The cylindrical roller bearing rolling element assembly die includes a base and an outer ring support block group that cooperate with each other;

[0005] The base is at least provided with a lower support platform and a convex platform provided on the lower support platform. A plurality of guide grooves are provided on the outer peripheral surface of the convex platform, and the guide grooves are used to guide the cylindrical rollers into the raceway of the bearing outer ring.

[0006] The outer ring support block group has a spliced state and a separated state;

[0007] In the spliced state, the outer ring support block group is spliced and arranged on the lower support platform of the base, and is concentrically located outside the convex platform. It forms an upper support platform, and a cavity is formed between its outer periphery and the outer periphery of the convex platform for accommodating and supporting the bearing outer ring;

[0008] In the separated state, the outer ring support block group is separated from between the lower support platform and the lower end surface of the bearing outer ring. The bearing outer ring and the cylindrical rollers move downward simultaneously under the action of gravity. The lower end surface of the bearing outer ring cooperates with the lower support platform, and the cylindrical rollers are assembled in the raceway under the combined action of the guide grooves and the bearing outer ring raceway.

[0009] In the embodiment of the present invention, by using the mutual cooperation of the outer ring support block group and the base, and by switching the outer ring support block group from the spliced state to the separated state, the cylindrical rollers can be assembled in the raceway under the combined action of the guide grooves and the bearing outer ring raceway, so that the cylindrical rollers can be conveniently, quickly, and efficiently assembled in the bearing outer ring raceway. Brief Description of the Drawings:

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0011] Figure 1 Structural schematic diagram of the base for the embodiment of the present invention;

[0012] Figure 2 Structural diagram showing the outer ring support block groups approaching and splicing relative to the base;

[0013] Figure 3 Structural schematic diagram showing the outer ring support block groups splicing with each other and cooperating with the base in the splicing state;

[0014] Figure 4 Schematic diagram showing the bearing outer ring placed on the mold of the present invention in the splicing state;

[0015] Figure 5 Schematic diagram showing the cylindrical rollers placed on the guide grooves of the mold of the present invention in the splicing state;

[0016] Figure 6 For Figure 5 A - A sectional view of;

[0017] Figure 7 Schematic diagram showing the outer ring support block groups separating from each other and moving away from the base;

[0018] Figure 8 Top view showing the cylindrical rollers being assembled into the raceway of the bearing outer ring under the action of the mold of the present invention in the separated state;

[0019] Figure 9 For Figure 8 B - B sectional view of;

[0020] Figure 10 Schematic diagram showing the cage being inserted with the assistance of the mold of the present invention;

[0021] Figure 11 For Figure 10 C - C sectional view of;

[0022] Figure 12 Schematic diagram showing the bearing outer ring, cage, and cylindrical rollers forming an integral kit with a relative assembly relationship using the mold of the present invention;

[0023] Figure 13 For Figure 12 D - D sectional view of;

[0024] Figure 14A bearing product assembled using the mold or assembly method of the present invention;

[0025] Figure 15 It is a schematic structural diagram of another structure of the outer ring support block group spliced together and cooperating with the base in the spliced state. Specific embodiments:

[0026] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the following further details the present invention in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] When the embodiments of the present invention mention ordinal numbers such as "first" and "second", unless they actually express an order meaning according to the context, they should be understood as merely for distinction.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] As Figures 1 to 3 shown, the embodiment of the present invention provides a rolling element assembly mold for a cylindrical roller bearing, which includes a base 1 and an outer ring support block group 2 that cooperate with each other;

[0030] The base 1 is at least provided with a lower support table 11 and a boss 12 provided on the lower support table 11. A plurality of guide grooves 121 are provided on the outer peripheral surface of the boss 12, and the guide grooves 121 are used to guide the cylindrical rollers 32 into the raceway of the bearing outer ring 31.

[0031] The outer ring support block group 2 has a spliced state and a separated state;

[0032] In the spliced state, as Figures 3 to 6 shown, the outer ring support block group 2 is spliced together and arranged on the lower support table 11 of the base 1, and is concentrically located outside the boss 12. It forms an upper support table 21, and a cavity is formed between its outer periphery and the outer periphery of the boss 12 for accommodating and supporting the bearing outer ring 31;

[0033] In the separated state, as Figures 7 to 9As shown, the outer ring support block group 2 is separated from between the lower support platform 11 and the lower end face of the bearing outer ring 31. Under the action of gravity, the bearing outer ring 31 and the cylindrical rollers 32 move downward simultaneously. The lower end face of the bearing outer ring 31 is mated with the lower support platform 11, and the cylindrical rollers 32 are assembled into the raceway under the combined action of the guide groove 121 and the raceway of the bearing outer ring 31. At this time, as Figure 10 , Figure 11 shown, a cage 33 acting on the cylindrical rollers 32 is inserted inside the bearing outer ring 31, enabling the bearing outer ring 31, the cage 33, and the cylindrical rollers 32 to form an integral kit with a relative assembly relationship, as Figure 12 , Figure 13 shown.

[0034] In the embodiment of the present invention, by utilizing the mutual cooperation between the outer ring support block group and the base, and by switching the outer ring support block group from the spliced state to the separated state, the cylindrical rollers can be assembled into the raceway under the combined action of the guide groove and the raceway of the bearing outer ring, enabling the cylindrical rollers to be conveniently, quickly, and efficiently assembled into the raceway of the bearing outer ring.

[0035] Furthermore, as a preferred embodiment of the present invention rather than a limitation, as Figure 2 shown, a positioning platform 13 is further provided on the base 1 between the lower support platform 11 and the boss 12. The lower support platform 11, the positioning platform 13, and the boss 12 are concentrically arranged, and the outer diameters gradually decrease. With a simple structure, when the outer ring support block group 2 is in the separated state, the positioning platform 13 can jointly support the cylindrical rollers 32 with the flange of the bearing outer ring 31, as Figure 9 shown; at the same time, when the outer ring support block group 2 is in the spliced state, the positioning platform 13 can perform concentric auxiliary positioning on the outer ring support block group 2.

[0036] Still further, as a preferred embodiment of the present invention rather than a limitation, as Figures 1 - 3 shown, concave cavities 131 corresponding one-to-one to the guide grooves 121 are provided on the upper surface of the positioning platform 13, for limiting the cylindrical rollers 32 when the cylindrical rollers 32 are assembled into the raceway under the combined action of the guide grooves 121 and the raceway of the bearing outer ring 31, making the cylindrical rollers 32 evenly spaced and preventing the cylindrical rollers 32 from moving, which may affect the subsequent insertion of the cage 33.

[0037] Also further, as a preferred embodiment of the present invention rather than a limitation, as Figure 3 shown, after the outer ring support block group 2 is mutually spliced, its upper support platform 21 is flush with the bottom surface of the concave cavity 131. This can ensure that the cylindrical rollers 32 are stably positioned in the concave cavity 131.

[0038] Even further, as a preferred embodiment of the present invention rather than a limitation, as Figure 3 , Figure 4As shown, after the outer ring support block group 2 is spliced together, an upper centering flange 22 that matches the outer peripheral surface of the bearing outer ring 31 extends upward around the upper support platform 21 thereof. A cavity for accommodating a part of the bearing outer ring 31 is formed between the upper centering flange 22 and the outer periphery of the convex platform 12. The structure is simple. Through the cooperation between the upper centering flange 22 and the outer peripheral surface of the bearing outer ring 31, the bearing outer ring 31 can be concentrically arranged with the convex platform 12.

[0039] Further, as a preferred embodiment rather than a limitation of the present invention, as Figure 2 、 Figure 6 shown, after the outer ring support block group 2 is spliced together, a lower centering flange 23 that matches the outer peripheral surface of the lower support platform 11 of the base extends downward around the upper support platform 21 thereof. The concentric arrangement of the outer ring support block group 2 and the convex platform 12 can be achieved through the cooperation between the lower centering flange 23 and the outer peripheral surface of the lower support platform 11.

[0040] Still further, as a preferred embodiment rather than a limitation of the present invention, as Figure 3 shown, after the outer ring support block group 2 is spliced together, the formed upper support platform 21 is in a circular ring shape, and the upper support platform 21 is concentrically sleeved outside the positioning platform 13 of the base 1 and supports the lower end surface of the bearing outer ring 31. The structure is simple, and the outer ring support block group 2 can be concentrically arranged with the convex platform 12 through the cooperation between the inner circumferential edge of the upper support platform 21 and the outer periphery of the positioning platform 13.

[0041] Furthermore, as a preferred embodiment rather than a limitation of the present invention, as Figure 2 、 Figure 3 shown, the outer ring support block group 2 at least includes two support blocks that can be spliced or separated from each other, and upper support platforms 21 and upper centering flanges 22 are respectively provided on each support block. The structure is simple, and the outer ring support block group 2 can be freely and conveniently switched between the spliced state and the separated state. In this embodiment, the outer ring support block group 2 is not limited to Figure 2 the two symmetric support blocks shown, and can also be three or four support blocks evenly distributed in the circumferential direction.

[0042] Still further, as a preferred embodiment rather than a limitation of the present invention, as Figure 15 shown, for the support blocks that can be spliced or separated from each other and constitute the outer ring support block group 2, only upper support platforms 21 and upper centering flanges 22 can be provided on each support block. This structure can also enable the outer ring support block group 2 to be freely and conveniently switched between the spliced state and the separated state.

[0043] Still further, as a preferred embodiment rather than a limitation of the present invention, as Figures 1 to 3 shown, the convex platform 12 is a cylindrical convex platform, and the guide groove 121 extends obliquely downward from the top surface of the convex platform 12 to the concave cavity 131. The structure is simple and can conveniently guide the cylindrical roller 32.

[0044] Furthermore, as a preferred embodiment of the present invention rather than a limitation, as Figures 1 to 3 shown, the guiding grooves 121 are circumferentially and evenly distributed on the boss 12. The structure is simple and can conveniently guide the cylindrical rollers 32.

[0045] Still further, as a preferred embodiment of the present invention rather than a limitation, as Figure 6 shown, the included angle a between the axis of the guiding groove 121 and the horizontal plane is greater than 90°, and particularly can be between 95° and 120°. The structure is simple and can conveniently guide the cylindrical rollers 32.

[0046] As described above, one or more embodiments are provided in combination with specific contents, and it is not considered that the specific implementation of the present invention is only limited to these descriptions. Any method, structure, etc. that is similar or identical to the present invention, or any technical deduction or replacement made under the premise of the inventive concept of the present invention, should be regarded as within the protection scope of the present invention.

Claims

1. A rolling element assembly die for cylindrical roller bearings, characterized in that, It includes a mutually cooperating base and an outer ring support block group; The base is at least provided with a lower support platform and a boss provided on the lower support platform. A plurality of guide grooves are formed on the outer peripheral surface of the boss, and the guide grooves are used to guide cylindrical rollers into the raceway of the bearing outer ring; The outer ring support block group has a spliced state and a separated state; In the spliced state, the outer ring support block group is spliced and arranged on the lower support platform of the base, and is concentrically located outside the boss. It forms an upper support platform, and a cavity is formed between its periphery and the outer periphery of the boss for accommodating and supporting the bearing outer ring; In the separated state, the outer ring support block group is separated from between the lower support platform and the lower end surface of the bearing outer ring. The bearing outer ring and the cylindrical rollers move downward simultaneously under the action of gravity. The lower end surface of the bearing outer ring cooperates with the lower support platform, and the cylindrical rollers are assembled in the raceway under the combined action of the guide grooves and the raceway of the bearing outer ring; The boss is a cylindrical boss, and the guide grooves extend obliquely from the top surface of the boss to the outer peripheral surface of the boss from top to bottom; The angle a between the axis of the guide groove and the horizontal plane is greater than 90°; 2. The rolling element assembly die for cylindrical roller bearings according to claim 1, characterized in that, A positioning platform is further provided on the base between the lower support platform and the boss. The lower support platform, the positioning platform, and the boss are concentrically arranged, and their outer diameters gradually decrease; 3. The rolling element assembly die for cylindrical roller bearings according to claim 2, characterized in that, Concave holes corresponding to the guide grooves one by one are formed on the upper surface of the positioning platform, and are used to limit the cylindrical rollers when the cylindrical rollers are assembled in the raceway under the combined action of the guide grooves and the raceway of the bearing outer ring; 4. The rolling element assembly die for cylindrical roller bearings according to claim 3, characterized in that, After the outer ring support block group is spliced, its upper support platform is flush with the bottom surface of the concave hole; 5. The rolling element assembly die for cylindrical roller bearings according to claim 4, characterized in that, After the outer ring support block group is spliced, an upper centering flange that cooperates with the outer peripheral surface of the bearing outer ring extends upward from the periphery of its upper support platform. A cavity for accommodating part of the bearing outer ring is formed between the upper centering flange and the outer periphery of the boss; 6. The rolling element assembly die for cylindrical roller bearings according to claim 5, characterized in that, After the outer ring support block group is spliced, a lower centering flange that cooperates with the outer peripheral surface of the lower support platform of the base extends downward from the periphery of its upper support platform; 7. The rolling element assembly die for cylindrical roller bearings according to claim 6, characterized in that, After the outer ring support block group is spliced, the formed upper support platform is annular, and the upper support platform is concentrically sleeved outside the positioning platform of the base and supports the lower end surface of the bearing outer ring; 8. The rolling element assembly die for cylindrical roller bearings according to claim 6, characterized in that, The outer ring support block group at least includes two support blocks that can be spliced or separated from each other. Each support block is respectively provided with an upper support platform, an upper centering flange, and a lower centering flange.

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