Retainer of cylindrical roller bearing

Abstract

The utility model discloses a retainer of a cylindrical roller bearing, which comprises twelve cylindrical rollers which are annularly distributed, and further comprises a mounting mechanism, the mounting mechanism comprises mounting racks, connecting blocks and connecting assemblies, the mounting racks are respectively arranged on the left and right sides of the cylindrical rollers, the connecting blocks are uniformly arranged at the inner side ends of the mounting racks, and the connecting assemblies are arranged on the connecting blocks. According to the retainer of the cylindrical roller bearing, the mounting mechanism is arranged, the mounting frames and the connecting blocks are distributed in a staggered mode, so that the two sides of the cylindrical roller are evenly stressed, and the bearing stability is improved. The contact area between the cylindrical roller and the retainer can be effectively reduced through the convex blocks, the first oil passing grooves and the second oil passing grooves, the contact area between lubricating oil and the cylindrical roller is increased, the abrasion speed of the cylindrical roller is slowed down, and therefore the service life of the cylindrical roller is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to cylindrical roller bearing technical field, concretely is a kind of cage of cylindrical roller bearing. BACKGROUND

[0002] Bearing is a kind of mechanical parts, main function is to support mechanical rotating body, reduce the friction coefficient in the process of movement, and ensure its rotation accuracy, bearing is widely used in various mechanical equipment, help the shaft in these devices rotate smoothly, bearing can be divided into two categories according to the friction property of moving element, can be divided into rolling bearing and sliding bearing two categories, rolling bearing is generally composed of outer ring, inner ring, rolling body and cage four parts, according to the shape of rolling body, rolling bearing is divided into ball bearing and roller bearing two categories, roller bearing can be divided into cylindrical roller bearing, tapered roller bearing and spherical roller bearing etc., among them, cylindrical roller bearing is particularly common, cylindrical roller bearing is usually used to bear heavy radial load, it is composed of inner ring, outer ring, roller and cage, inner ring, outer ring, roller is in linear contact, cage can evenly separate cylindrical roller to avoid mutual interference of cylindrical roller, the cage of existing cylindrical roller bearing is mostly composed of frame body, fixed ring and rivet, the left side of frame body is equipped with evenly distributed partition, the left end of partition is connected with fixed ring, when using, cylindrical roller is placed between two partitions, then partition is connected with fixed ring, forms cage, then rivet is inserted into cage inside in sequence, makes rivet both ends form riveting state, forms complete cylindrical roller cage, the frame body and fixed ring of traditional cylindrical roller cage are respectively located at both sides of cylindrical roller and different in shape, it can cause uneven force on both ends of cylindrical roller, the contact area of outer surface of cylindrical roller and cage is large, cylindrical roller and cage are directly contacted, lack oil groove, lubricating oil cannot evenly adhere to the surface of cylindrical roller, it can cause serious wear of cylindrical roller, for this reason, we propose a kind of cage of cylindrical roller bearing. UTILITY MODEL CONTENTS

[0003] The utility model wants to overcome the technical problem of existing defects, provide a kind of cage of cylindrical roller bearing, is equipped with mounting mechanism, the force on both sides of cylindrical roller is uniform through the staggered distribution of mounting frame and connecting block, the contact area between cylindrical roller and cage can be effectively reduced by protruding block, oil groove one and oil groove two, increase the contact area of lubricating oil and cylindrical roller, further slow down the wear of cylindrical roller, thereby improve the service life of cylindrical roller, can effectively solve the problems in background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of cage of cylindrical roller bearing, including cylindrical roller, twelve cylindrical rollers are annularly distributed, still include mounting mechanism;

[0005] The installation mechanism comprises a mounting frame, connecting blocks and connecting assemblies, the mounting frame is arranged on the left and right sides of the cylindrical roller respectively, the connecting blocks are uniformly arranged on the inner side ends of the mounting frame, the left and right groups of connecting blocks are annularly and spacedly distributed, and the connecting assemblies are arranged in the interiors of the mounting frames.

[0006] Further, the connecting assembly comprises protrusions, the protrusions are symmetrically arranged on the two side faces of the connecting block close to the cylindrical roller, the outer side ends of the protrusions are in abutment with the outer surfaces of the annularly adjacent cylindrical rollers, the two protrusions on the same side of the mounting frame and the two protrusions on the same side of the annularly adjacent mounting frame form a group, and the four protrusions in one group are rotationally connected with the cylindrical roller, so that the contact area between the retainer and the cylindrical roller is preliminarily reduced.

[0007] Further, the connecting assembly further comprises an oil passing groove one, the oil passing groove one is uniformly arranged on the outer side end of the protrusion, and the oil passing groove one is matched with the annularly adjacent cylindrical roller, so that the contact area between the retainer and the cylindrical roller is further reduced, and the contact area between the lubricating oil and the cylindrical roller is preliminarily increased.

[0008] Further, the connecting assembly further comprises a positioning hole and a positioning block, the positioning hole is arranged on the inner side end of the mounting frame, the left and right groups of positioning holes are annularly and staggeredly distributed, and the positioning block is arranged on the outer side end of the connecting block, the outer surface of the connecting block is in plug-in connection with the inner wall of the transversely adjacent positioning hole, and a positioning basis is provided for assembly of the retainer.

[0009] Further, the connecting assembly further comprises a rivet, the interiors of the mounting frame and the connecting block are provided with through holes, and the rivet is in plug-in connection with the interior of the through hole, so that a connecting basis is provided for assembly of the retainer.

[0010] Further, the installation mechanism further comprises an oil passing groove two, the oil passing groove two is arranged on the inner side end of the mounting frame, and the oil passing groove two is matched with the transversely adjacent cylindrical roller, so that the contact area between the lubricating oil and the cylindrical roller is further increased.

[0011] Further, the inner side end of the oil passing groove two is provided with a notch, and the two notches in the same oil passing groove two are distributed at the two end heads of the oil passing groove two, so that the lubricating oil can better enter and exit the oil passing groove two.

[0012] Compared with the prior art, the retainer of the cylindrical roller bearing has the following advantages:

[0013] The left frame body and the right frame body are staggered, so that the shapes of the left and right sides of the retainer are the same, and the force on the two sides of the cylindrical roller is uniform; the two groups of symmetrically distributed protrusions limit the outer surface of the cylindrical roller, which can preliminarily reduce the contact area between the retainer and the cylindrical roller, and in cooperation with the oil grooves one and the oil grooves two, the contact area between the retainer and the cylindrical roller is further reduced, the contact area between the lubricating oil and the cylindrical roller is increased, the wear of the cylindrical roller is slowed down, and the service life of the cylindrical roller is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic diagram of the utility model;

[0015] Fig. 2 It is a sectional structural schematic diagram of the installation mechanism of the utility model;

[0016] Fig. 3 It is an exploded structural schematic diagram of the installation mechanism of the utility model.

[0017] 1 cylindrical roller, 2 through hole, 3 installation mechanism, 31 installation frame, 32 connecting block, 33 connecting assembly, 331 protrusion, 332 oil groove one, 333 positioning hole, 334 positioning block, 335 rivet, 34 oil groove two, 4 recess. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figs. 1-3 The embodiment provides a technical scheme of a retainer of a cylindrical roller bearing, which comprises a cylindrical roller 1, twelve cylindrical rollers 1 are arranged in a ring shape, and further comprises an installation mechanism 3.

[0020] The mounting mechanism 3 comprises mounting racks 31, connecting blocks 32 and connecting assemblies 33. The mounting racks 31 are arranged on the left and right sides of the cylindrical rollers 1 respectively. The connecting blocks 32 are evenly arranged on the inner side ends of the mounting racks 31. The left and right groups of connecting blocks 32 are annularly and spacedly distributed. The connecting assemblies 33 are arranged in the interiors of the mounting racks 31. The left mounting rack 31 and the connecting block 32 form a left rack body. The right mounting rack 31 and the connecting block 32 form a right rack body. The left rack body and the right rack body form a retainer. The connecting assembly 33 comprises protrusions 331. The protrusions 331 are symmetrically arranged on the two side faces of the connecting block 32 close to the cylindrical rollers 1. The outer side ends of the protrusions 331 are in abutment with the outer surfaces of the annularly adjacent cylindrical rollers 1. The outer side ends of the protrusions 331 are provided with chamfers, which reduces the contact area with the outer surfaces of the cylindrical rollers 1. The two protrusions 331 on the same side of the mounting rack 31 and the two protrusions 331 on the same side of the annularly adjacent mounting rack 31 form a group. Four protrusions 331 in a group are rotationally connected with the cylindrical roller 1, which preliminarily reduces the contact area between the retainer and the cylindrical roller 1. The connecting assembly 33 further comprises oil passing grooves 332. The oil passing grooves 332 are evenly arranged on the outer side ends of the protrusions 331. The oil passing grooves 332 are matched with the annularly adjacent cylindrical rollers 1 for installation. The lubricating oil can pass through the evenly distributed oil passing grooves 332 to maximally coat the outer surfaces of the corresponding cylindrical rollers 1, which further reduces the contact area between the retainer and the cylindrical rollers and preliminarily increases the contact area between the lubricating oil and the cylindrical rollers 1. The connecting assembly 33 further comprises positioning holes 333 and positioning blocks 334. The positioning holes 333 are arranged on the inner side ends of the mounting racks 31. The left and right groups of positioning holes 333 are annularly and staggeredly distributed. The positioning blocks 334 are arranged on the outer side ends of the connecting blocks 32. The outer surfaces of the connecting blocks 32 are inserted into the inner walls of the transversely adjacent positioning holes 333. The positioning holes 333 and the positioning blocks 334 are square, which provides a positioning basis for the assembly of the retainer. The connecting assembly 33 further comprises rivets 335. The interiors of the mounting racks 31 and the connecting blocks 32 are provided with through holes 2. The rivets 335 are inserted into the interiors of the through holes 2, which provides a connecting basis for the assembly of the retainer. The mounting mechanism 3 further comprises oil passing grooves 34. The oil passing grooves 34 are arranged on the inner side ends of the mounting racks 31. The oil passing grooves 34 are matched with the transversely adjacent cylindrical rollers 1 for installation. The oil passing grooves 34 can make the left and right ends of the cylindrical rollers 1 be coated with lubricating oil, which further increases the contact area between the lubricating oil and the cylindrical rollers 1. The inner side ends of the oil passing grooves 34 are provided with notches 4. The two notches 4 in the same oil passing groove 34 are arranged at the two end heads of the oil passing groove 34, which can better make the lubricating oil enter and exit the oil passing groove 34. The mounting mechanism 3 is arranged. The staggered distribution of the mounting racks 31 and the connecting blocks 32 makes the forces on the two sides of the cylindrical rollers 1 uniform. The protrusions 331, the oil passing grooves 332 and the oil passing grooves 34 can effectively reduce the contact area between the cylindrical rollers 1 and the retainer and increase the contact area between the lubricating oil and the cylindrical rollers 1.Further slow down the cylindrical roller 1 wear, thereby improving the service life of the cylindrical roller 1.

[0021] The working principle of the cage of the cylindrical roller bearing provided by the utility model is as follows: when the cage of the cylindrical roller bearing is used, first, the right frame body on one side is laid flat, the connecting block 32 of the right frame body faces upward, then the cylindrical rollers 1 are respectively placed on the two sides of the connecting block 32, the outer side end of the protruding block 331 is close to the outer surface of the cylindrical roller 1, then the left frame body is picked up, after adjustment, the positioning hole 333 on the left frame body is aligned with the positioning block 334 on the connecting block 32 of the right frame body, the positioning hole 333 on the right frame body is aligned with the positioning block 334 on the connecting block 32 of the left frame body, the left frame body is moved, the left frame body and the right frame body are combined into one piece, the protruding block 331 on the connecting block 32 of the left frame body is also close to the outer surface of the cylindrical roller 1, at this time, the rivet 335 is inserted, then one end of the rivet 335 is heated and deformed, thereby forming a connecting effect on the whole composed of the left frame body and the right frame body, at this time, the two groups of symmetrically distributed protruding blocks 331 form a limiting effect on the outer surface of the cylindrical roller 1, after lubricating oil is added, the protruding block 331 cooperates with the oil groove one 332, the contact area of the cage and the cylindrical roller 1 is reduced, and the contact area of the lubricating oil and the cylindrical roller 1 is also preliminarily improved, when the lubricating oil flows through the oil groove two 34, the lubricating oil enters from the notch 4 on one side and then flows out from the notch 4 on the other side, so that the lubricating oil can fill the inside of the oil groove two 34, and the contact area of the lubricating oil and the cylindrical roller 1 is further improved.

[0022] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. Cage for cylindrical roller bearings, comprising cylindrical rollers (1), twelve cylindrical rollers (1) being arranged in a ring, characterized in that: It also includes installation mechanism (3); The installation mechanism (3) includes a mounting frame (31), a connecting block (32) and a connecting assembly (33), the mounting frame (31) is arranged on the left and right sides of the cylindrical roller (1), the connecting block (32) is evenly arranged on the inner side of the mounting frame (31), and the left and right connecting blocks (32) are annularly and spacedly distributed, and the connecting assembly (33) is arranged in the mounting frame (31). The connecting assembly (33) includes a protruding block (331), the protruding block (331) is symmetrically arranged on the two side surfaces of the connecting block (32) close to the cylindrical roller (1), the outer side end of the protruding block (331) is attached to the outer surface of the annularly adjacent cylindrical roller (1), and the two protruding blocks (331) on the same side of the mounting frame (31) and the two protruding blocks (331) on the same side of the annularly adjacent mounting frame (31) form a group, and the four protruding blocks (331) in the group are rotatably connected with the cylindrical roller (1). The connecting assembly (33) further includes an oil passing groove one (332), the oil passing groove one (332) is evenly arranged on the outer side end of the protruding block (331), and the oil passing groove one (332) is matched with the annularly adjacent cylindrical roller (1). The connecting assembly (33) further includes a positioning hole (333) and a positioning block (334), the positioning hole (333) is arranged on the inner side of the mounting frame (31), the left and right positioning holes (333) are annularly and staggeredly distributed, and the positioning block (334) is arranged on the outer side of the connecting block (32). The connecting assembly (33) further includes a rivet (335), the mounting frame (31) and the connecting block (32) are internally provided with a through hole (2), and the rivet (335) is inserted into the through hole (2).

2. A cage for a cylindrical roller bearing according to claim 1, characterized in that: The installation mechanism (3) further includes an oil passing groove two (34), the oil passing groove two (34) is arranged on the inner side of the mounting frame (31), and the oil passing groove two (34) is matched with the horizontally adjacent cylindrical roller (1).

3. A cage for a cylindrical roller bearing according to claim 2, characterized in that: The inner side of the oil passing groove two (34) is provided with a notch (4), and the two notches (4) in the same oil passing groove two (34) are arranged at the two ends of the oil passing groove two (34).

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