Composite roller bearing

Abstract

The utility model discloses a composite roller bearing which comprises a main roller bearing, a side roller bearing and a fixing support, the fixing support is installed on the end face of an inner ring of the main roller bearing, an inner ring of the side roller bearing is a mandrel, and the mandrel is installed on the fixing support so as to be installed on the end face of the main roller bearing along with the fixing support. Radial load is borne by the main roller bearing, and axial load is borne by the side roller bearing. According to the composite roller bearing disclosed by the utility model, the side roller bearing can be mounted on the end face of the main roller bearing under the action of the fixed bracket, so that the bearing of an axial load is well realized.

Description

Technical Field

[0001] The utility model relates to a bearing, more particularly to a composite roller bearing. Background Art

[0002] In the machinery manufacturing industry, a roller bearing that can withstand large radial forces is often used. However, in industries such as engineering machinery planetary supports and various production automatic lines, when it is required to withstand both radial and axial loads, traditional roller bearings are insufficient. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a composite roller bearing that can withstand both radial and axial loads.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a composite roller bearing, characterized in that it includes a main roller bearing, a side roller bearing and a fixed bracket, the fixed bracket is installed on the end face of the inner ring of the main roller bearing, the inner ring of the side roller bearing is a core shaft, and the core shaft is installed on the fixed bracket so as to be installed on the end face of the main roller bearing along with the fixed bracket, so as to carry radial loads through the main roller bearing and carry axial loads through the side roller bearing.

[0005] As a further improvement of the present invention, the fixed bracket includes a bracket body and a mounting plate, the bracket body is composed of two long arc-shaped plates, one end of the two arc-shaped plates are fixed on one surface of the mounting plate at intervals, so that a square channel is formed between the two arc-shaped plates, and a square hole with a shape and size matching the square channel is opened in the center of the mounting plate, and a through hole is opened in the center position of the two arc-shaped plates, and the two ends of the core shaft are respectively inserted into the two through holes, so that the side roller bearing is installed on the fixed bracket, and at the same time, the outer ring of the side roller bearing extends out from the square hole.

[0006] As a further improvement of the present invention, the main roller bearing includes a main outer ring, a main inner ring and a plurality of main rollers, the plurality of main rollers are arranged between the main inner ring and the main outer ring, the fixed bracket is installed on the end face of the main inner ring by bolts, and the outer edge of the end face of the main outer ring is chamfered.

[0007] As a further improvement of the present invention, the main inner ring includes a bottom ring and a cover ring, the cover ring is coaxially fixed on one end of the bottom ring, and the outer side wall of the cover ring is combined with the outer side wall of the bottom ring to form a channel structure for accommodating the main roller.

[0008] As a further improvement of the present invention, the side roller bearing includes a side outer ring and a plurality of side rollers, and the plurality of side rollers are arranged between the side outer ring and the core shaft, wherein the length of the side outer ring is smaller than the length of the core shaft.

[0009] As a further improvement of the present invention, a sealing ring is embedded in the inner ring wall of the side outer ring near both ends, and a sealing tongue is inclined on the inner ring wall of the sealing ring. The side of the sealing tongue facing away from the sealing ring is in contact with the core shaft to form a seal with the outer wall of the core shaft.

[0010] The beneficial effect of the utility model is that, through the function of the fixing bracket, the side roller bearing can be effectively installed on the end face of the main roller bearing, thereby well realizing the radial load being carried by the main roller bearing and the axial load being carried by the side roller bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the overall structure diagram of the composite roller bearing of the present utility model;

[0012] Figure 2 for Figure 1 The overall structure diagram of the main roller bearing;

[0013] Figure 3 for Figure 1 The overall structure diagram of the middle side roller bearing;

[0014] Figure 4 for Figure 1 The overall structure diagram of the fixed bracket. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0016] Reference Figures 1 to 4 As shown, a composite roller bearing of the present embodiment includes a main roller bearing 1, a side roller bearing 2 and a fixed bracket 3. The fixed bracket 3 is installed on the end face of the inner ring of the main roller bearing 1. The inner ring of the side roller bearing 2 is a core shaft 4. The core shaft 4 is installed on the fixed bracket 3 so as to be installed on the end face of the main roller bearing 1 along with the fixed bracket 3, so as to carry radial loads through the main roller bearing 1 and carry axial loads through the side roller bearing 2. In the process of using the composite roller bearing of the present embodiment, it is only necessary to install the main roller bearing 1 on an external component, and then carry the axial load through the side roller bearing 2. Compared with the method in the prior art, this can simply and effectively achieve the effect of carrying axial and radial loads.

[0017] As a specific embodiment of the improvement, the fixed bracket 3 includes a bracket body 31 and a mounting plate 32. The bracket body 31 is composed of two long arc-shaped plates. One end of the two arc-shaped plates is fixed on one surface of the mounting plate 32 at intervals to form a square channel between the two arc-shaped plates. A square hole with a shape and size that matches the square channel is opened in the center of the mounting plate 32. Through holes are opened in the center positions of the two arc-shaped plates. The two ends of the core shaft 4 are respectively inserted into the two through holes, so that the side roller bearing 2 is installed on the fixed bracket 3, and the outer ring of the side roller bearing 2 extends from the square hole. Through the arrangement of the above structure, the side roller bearing 2 can be simply and effectively installed on the end face of the main roller bearing 1.

[0018] As a specific embodiment of the improvement, the main roller bearing 1 includes a main outer ring 12, a main inner ring 11 and a plurality of main rollers 13. The plurality of main rollers 13 are arranged between the main inner ring 11 and the main outer ring 12. The fixed bracket 3 is installed on the end face of the main inner ring 11 by bolts. The outer edge of the end face of the main outer ring 12 is chamfered to facilitate rolling on uneven tracks. The main outer ring 12 has a thick wall and is suitable for rolling occasions with high force. One side of the end face has a bevel, which can avoid obstacles during rolling. The main outer ring 12 has a double rib structure, which can limit movement in two directions.

[0019] As a specific embodiment of the improvement, the main inner ring 11 includes a bottom ring 111 and a cover ring 112. The cover ring 112 is coaxially fixed on one end of the bottom ring 111. The outer wall of the cover ring 112 is combined with the outer wall of the bottom ring 111 to form a channel structure for accommodating the main roller 13. The main inner ring 11 adopts a single rib structure with two lubricating oil holes, which can better facilitate the disassembly and assembly of the main inner ring 11.

[0020] As a specific embodiment of the improvement, the side roller bearing 2 includes a side outer ring 21 and a plurality of side rollers 22, and the plurality of side rollers 22 are arranged between the side outer ring 21 and the core shaft 4, wherein the length of the side outer ring 21 is smaller than the length of the core shaft 4. Through the arrangement of the above structure, it is possible to effectively achieve the effect of connecting with the fixed bracket 3 through the core shaft 4, and then enabling the side outer ring 21 to rotate in the square hole.

[0021] As a specific embodiment of the improvement, a sealing ring 23 is embedded in the inner ring wall of the side outer ring 21 near both ends, and a sealing tongue 24 is inclined on the inner ring wall of the sealing ring 23. The side of the sealing tongue 24 facing away from the sealing ring 23 is in contact with the core shaft 4 to form a seal with the outer wall of the core shaft 4. Through the setting of the sealing ring 23, a good sealing effect can be achieved. In addition, the design of the sealing tongue 24 can increase the deformation degree of the sealing ring, thereby improving the sealing effect.

[0022] To sum up, the composite roller bearing of this embodiment, through the arrangement of the main roller bearing 1, the side roller bearing 2 and the fixed bracket 3, can realize the installation of the side roller bearing 2 onto the end face of the main roller bearing 1 through the action of the fixed bracket 3, so that the composite roller bearing has the effect of synchronously bearing axial load and radial load.

[0023] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A composite roller bearing, characterized in that: The invention comprises a main roller bearing (1), a side roller bearing (2) and a fixed bracket (3), wherein the fixed bracket (3) is mounted on the end face of the inner ring of the main roller bearing (1), the inner ring of the side roller bearing (2) is a core shaft (4), and the core shaft (4) is mounted on the fixed bracket (3) so as to be mounted on the end face of the main roller bearing (1) along with the fixed bracket (3) so as to carry radial loads through the main roller bearing (1) and carry axial loads through the side roller bearing (2).

2. The composite roller bearing according to claim 1, characterized in that: The fixed bracket (3) includes a bracket body (31) and a mounting plate (32). The bracket body (31) is composed of two long arc-shaped plates. One end of the two arc-shaped plates is fixed to one surface of the mounting plate (32) at a distance from each other, so that a square channel is formed between the two arc-shaped plates. A square hole with a shape and size that matches the square channel is opened in the center of the mounting plate (32). A through hole is opened at the center position of the two arc-shaped plates. The two ends of the core shaft (4) are respectively inserted into the two through holes, so that the side roller bearing (2) is installed on the fixed bracket (3) and the outer ring of the side roller bearing (2) extends out from the square hole.

3. The composite roller bearing according to claim 2, characterized in that: The main roller bearing (1) comprises a main outer ring (12), a main inner ring (11) and a plurality of main rollers (13), wherein the plurality of main rollers (13) are arranged between the main inner ring (11) and the main outer ring (12), and the fixing bracket (3) is mounted on the end face of the main inner ring (11) by bolts, and the outer side edge of the end face of the main outer ring (12) is provided with a chamfer.

4. The composite roller bearing according to claim 3, characterized in that: The main inner ring (11) includes a bottom ring (111) and a cover ring (112), wherein the cover ring (112) is coaxially fixed to one end of the bottom ring (111), and the outer wall of the cover ring (112) is combined with the outer wall of the bottom ring (111) to form a channel structure for accommodating the main roller (13).

5. The composite roller bearing according to claim 4, characterized in that: The side roller bearing (2) comprises a side outer ring (21) and a plurality of side rollers (22), wherein the plurality of side rollers (22) are arranged between the side outer ring (21) and the core shaft (4), wherein the length of the side outer ring (21) is less than the length of the core shaft (4).

6. The composite roller bearing according to claim 5, characterized in that: A sealing ring (23) is embedded in the inner ring wall of the side outer ring (21) near both ends, and a sealing tongue (24) is obliquely provided on the inner ring wall of the sealing ring (23). The side of the sealing tongue (24) facing away from the sealing ring (23) abuts against the core shaft (4) to form a seal with the outer wall of the core shaft (4).

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