CN203809514U

CN203809514U - Bearing structure for connecting roller shaft and guard roller of rolling guide and guard assembly

Info

Publication number: CN203809514U
Application number: CN201420181819.8U
Authority: CN
Inventors: 李之悦; 李波
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-16
Filing date: 2014-04-16
Publication date: 2014-09-03
Anticipated expiration: 2024-04-16

Abstract

The utility model provided a bearing structure for connecting a roller shaft and a guard roller of a rolling guide and guard assembly. The guide roller is used as the outer ring of the bearing structure; the middle part of the inner circumferential surface of the guide roller sinks relative to two sides, so that the sink part forms a roller path for cylindrical rollers; the cylindrical rollers are arranged between the guide roller and an inner ring; a radial outer convex edge formed in one side part of the inner ring limits axial motions of the cylindrical rollers; a retainer ring, the outer convex edge and the inner ring form the roller path; the bearing structure further comprises a retainer for retaining spaces among cylindrical rollers; and a lubricating oil channel which radially penetrates through the inner ring is formed in the inner ring and is communicated with the roller path of the inner ring and a lubricating oil channel in the roller shaft. Compared with an existing bearing structure, the bearing structure has the advantages that the bearing capability is improved, or under the same load, the service life is prolonged.

Description

On rolling guide assembly, connect the bearing structure of roll shaft and deflector roll

technical field

The utility model relates to rolling guide assembly, is specifically related to connect on rolling guide assembly the bearing structure of roll shaft and deflector roll.

background technique

As Figure 1-Figure 2, Fig. 1 shows the overall structure of rolling guide assembly, axially upper juxtaposed two single-row radial ball bearings 3 are wherein set between roll shaft 1 and deflector roll 2, this bearing combined structure is made up of two single-row radial ball bearings, between two single-row radial ball bearings, clamp oil header 4, this bearing combined structure assembling is comparatively complicated.

summary of the invention

The technical problems to be solved in the utility model is to provide the bearing structure that connects roll shaft and deflector roll on a kind of rolling guide assembly.

In order to solve the problems of the technologies described above, the technical solution of the utility model is:

On a kind of rolling guide assembly, connect the bearing structure of roll shaft and deflector roll, deflector roll is as the outer ring of this bearing structure, the relative both sides, middle part of deflector roll inner peripheral surface cave in to make this depressed part to form the raceway of cylindrical roller, cylindrical roller is placed between deflector roll and inner ring, inner ring one sidepiece has outward flange moving axially with unidirectional spacing cylindrical roller radially, inner ring opposite side arranges back-up ring, the jump ring that is assemblied on inner ring and be positioned at outside back-up ring carries out unidirectional axial limiting to back-up ring, back-up ring, outward flange and inner ring form the raceway of cylindrical roller, this bearing structure also comprises the retainer that keeps cylindrical roller interval, inner ring has the oil leab that inner ring is upwards run through in footpath, the oil leab of inner ring is linked up the oil leab on inner ring raceway and roll shaft.

On above-mentioned rolling guide assembly, connect the bearing structure of roll shaft and deflector roll, the both sides mouth between deflector roll and inner ring is all by dust cover shutoff.

On above-mentioned rolling guide assembly, connect the bearing structure of roll shaft and deflector roll, cylindrical roller is through convexity processing.

Cylindrical roller is placed between deflector roll and inner ring, cylindrical roller carries out axial limiting by the flange of deflector roll inner peripheral surface both sides, carry out axial limiting by the flange on inner ring and back-up ring simultaneously, after assembling, deflector roll, cylindrical roller and inner ring are structure as a whole, carry out with the assembling of roll shaft simplyr, assembly precision is high.Compare with existing bearing combined structure, increased bearing capacity or under same load prerequisite, improved working life.

brief description of the drawings

Below in conjunction with accompanying drawing to further detailed explanation of the utility model:

Fig. 1 is the structural representation of existing rolling guide assembly.

Fig. 2 is the schematic diagram that connects the bearing combination of roll shaft and deflector roll in Fig. 1.

Fig. 3 is structural representation of the present utility model.

Fig. 4 is the schematic diagram of cylindrical roller.

Fig. 5 is the partial enlarged drawing of Fig. 4.

In figure: 1 roll shaft, 2 deflector rolls, 3 single-row radial ball bearings, 4 oil headers, 5 inner rings, 6 cylindrical rollers, 7 back-up rings, 8 jump rings, 9 retainers, 10 dust covers, 11 oil leabs.

Embodiment

As shown in Figure 3, on a kind of rolling guide assembly, connect the bearing structure of roll shaft 1 and deflector roll, deflector roll 2 is as the outer ring of this bearing structure, the relative both sides, middle part of deflector roll inner peripheral surface cave in to make this depressed part to form the raceway of cylindrical roller 6, cylindrical roller is placed between deflector roll and inner ring 5, inner ring one sidepiece has outward flange moving axially with unidirectional spacing cylindrical roller radially, inner ring opposite side arranges back-up ring 7, the jump ring 8 that is assemblied on inner ring and be positioned at outside back-up ring carries out unidirectional axial limiting to back-up ring, back-up ring, outward flange and inner ring form the raceway of cylindrical roller, this bearing structure also comprises the retainer 9 that keeps cylindrical roller interval, inner ring has the oil leab 11 that inner ring is upwards run through in footpath, the oil leab of inner ring is linked up the oil leab on inner ring raceway and roll shaft.

Both sides mouth between deflector roll and inner ring all, by dust cover 10 shutoff, plays dustproof effect.

As shown in Figure 4 and Figure 5, cylindrical roller is through convexity processing.The cylindrical roller of this structure greatly reduces because the rolling element two ends stress that the reasons such as installation and stressed deviation cause is concentrated the generation that causes getting up early Problem of Failure.

Claims

1. on a rolling guide assembly, connect the bearing structure of roll shaft and deflector roll, it is characterized in that: deflector roll is as the outer ring of this bearing structure, the relative both sides, middle part of deflector roll inner peripheral surface cave in to make this depressed part to form the raceway of cylindrical roller, cylindrical roller is placed between deflector roll and inner ring, inner ring one sidepiece has outward flange moving axially with unidirectional spacing cylindrical roller radially, inner ring opposite side arranges back-up ring, the jump ring that is assemblied on inner ring and be positioned at outside back-up ring carries out unidirectional axial limiting to back-up ring, back-up ring, outward flange and inner ring form the raceway of cylindrical roller, this bearing structure also comprises the retainer that keeps cylindrical roller interval, inner ring has the oil leab that inner ring is upwards run through in footpath, the oil leab of inner ring is linked up the oil leab on inner ring raceway and roll shaft.

2. the bearing structure that connects roll shaft and deflector roll on rolling guide assembly according to claim 1, is characterized in that: the both sides mouth between deflector roll and inner ring is all by dust cover shutoff.

3. the bearing structure that connects roll shaft and deflector roll on rolling guide assembly according to claim 1, is characterized in that: cylindrical roller is through convexity processing.