Thrust knuckle bearing for truck double-shaft support

Abstract

The utility model discloses a thrust knuckle bearing for a double-shaft support of a truck, which comprises a bearing outer ring provided with a first spherical surface; the bearing inner ring is provided with a second spherical surface, and the second spherical surface abuts against the first spherical surface; a self-lubricating layer is arranged between the first spherical surface and the second spherical surface and connected to the first spherical surface through a limiting mechanism. The thrust knuckle bearing not only can improve the connection strength and stability between the self-lubricating layer and the bearing outer ring, improve the performance of the thrust knuckle bearing and meet the requirements of high load, severe working conditions and other environments of a hinged joint of engineering machinery, but also has the advantages of high reliability, strong bearing capacity, good adaptability, simplicity and convenience in installation and the like, optimizes the internal structure of the bearing, and reduces the production cost. Premature fatigue failure of the product is avoided, the product has good wear resistance and lubricating performance, the use reliability of the product is improved, and the service life of the product is prolonged.

Description

Technical Field

[0001] The utility model relates to a thrust spherical bearing for a double-axle bracket of a truck. Background Art

[0002] Thrust spherical bearing is a spherical sliding bearing, whose sliding contact surface is an inner spherical surface and an outer spherical surface. It can rotate and swing at any angle during movement. It is made by a variety of special treatment processes such as surface phosphating, blasting, inlaying, spraying, etc.

[0003] Thrust spherical plain bearings generally include a bearing inner ring and a bearing outer ring, and lubrication is used between the bearing inner ring and the bearing outer ring to reduce friction. Thrust spherical plain bearings in the prior art use a self-lubricating structure for lubrication, but the adhesion strength between the self-lubricating structure and the bearing outer ring is low, which is easy to cause wear. Utility Model Content

[0004] The utility model aims to provide a technical solution for a thrust spherical bearing for a truck dual-axle bracket in view of the deficiencies in the prior art, which can not only improve the connection strength and stability between the self-lubricating layer and the outer ring of the bearing, improve the performance of the thrust spherical bearing, and meet the high load and harsh working conditions of the articulated joints of engineering machinery, but also has the advantages of high reliability, strong load-bearing capacity, good adaptability, and easy installation. At the same time, it optimizes the internal structure of the bearing to avoid premature fatigue failure of the product, so that the product has good wear resistance and lubrication performance, and improves the reliability and service life of the product.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] Thrust spherical plain bearings for truck double axle brackets, including

[0007] A bearing outer ring, wherein the bearing outer ring is provided with a first spherical surface;

[0008] and a bearing inner ring, the bearing inner ring being provided with a second spherical surface, the second spherical surface being against the first spherical surface;

[0009] Features:

[0010] A self-lubricating layer is provided between the first spherical surface and the second spherical surface, and the self-lubricating layer is connected to the first spherical surface through a limiting mechanism; through the design of the above structure, not only the connection strength and stability between the self-lubricating layer and the outer ring of the bearing can be improved, the performance of the thrust spherical bearing can be improved, and it can meet the high load and harsh working conditions of the articulated joints of engineering machinery, but also it has the advantages of high reliability, strong load-bearing capacity, good adaptability, easy installation, etc. At the same time, the internal structure of the bearing is optimized to avoid premature fatigue failure of the product, so that the product has good wear resistance and lubrication performance, and the reliability and service life of the product are improved.

[0011] Furthermore, the material of the self-lubricating layer is PTFE braid, which can improve the self-lubricating performance of the bearing and reduce wear.

[0012] Furthermore, the limiting mechanism includes a clamping strip, an annular strip, a clamping groove and an annular groove. The clamping strip is distributed in an annular shape on the outer surface of the self-lubricating layer, and the clamping groove is distributed in an annular shape on the first spherical surface. The clamping strip matches the clamping groove. The annular strip is arranged on the outer side surface of the self-lubricating layer near the port. An annular groove is arranged in the first spherical surface. The annular strip matches the annular groove. By embedding the clamping strip in the clamping groove and the annular strip in the annular groove, the connection strength and stability between the self-lubricating layer and the first spherical surface can be improved, and the lubrication effect between the inner ring of the bearing and the outer ring of the bearing can be further improved, thereby reducing wear and extending the service life.

[0013] Furthermore, the second spherical surface of the inner ring of the bearing has a hard chrome-plated layer, and the material of the layer is GCr15 steel, which improves the comprehensive performance of the bearing.

[0014] Furthermore, the surface of the bearing outer ring is phosphated to form an anti-corrosion layer for protecting the bearing outer ring and preventing corrosion caused by contact between air and the bearing outer ring.

[0015] Furthermore, the thickness of the inner ring of the bearing is H1, 10 cm

[0016] Furthermore, the thickness of the outer ring of the bearing is H2, 10cm<H2<13cm.

[0017] Furthermore, the outer diameter of the bearing inner ring is smaller than the outer diameter of the bearing outer ring.

[0018] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0019] The utility model can not only improve the connection strength and stability between the self-lubricating layer and the outer ring of the bearing, improve the performance of the thrust spherical bearing, and meet the high load and harsh working conditions of the articulated joints of engineering machinery, but also has the advantages of high reliability, strong load-bearing capacity, good adaptability, and easy installation. At the same time, it optimizes the internal structure of the bearing, avoids premature fatigue failure of the product, makes the product have good wear resistance and lubrication performance, and improves the reliability and service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 This is a structural schematic diagram of a thrust spherical bearing for a double-axle support for a truck according to the utility model;

[0022] Figure 2 It is an exploded view of the utility model;

[0023] ​ Figure 3 It is a structural schematic diagram of the self-lubricating layer in the utility model;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0025] In the figure: 1-bearing outer ring; 101-through hole; 102-first spherical surface; 103-slot;

[0026] 2-bearing inner ring; 201-second spherical surface; 202-bearing hole;

[0027] 3-self-lubricating layer; 301-card strip; 302-ring strip. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0031] like Figures 1 to 4 As shown, the thrust spherical bearing for a truck dual-axle support of the utility model comprises a bearing outer ring 1 and a bearing inner ring 2. The bearing outer ring 1 is provided with a first spherical surface 102 and a through hole 101, and the through hole 101 is connected to the first spherical surface 102. The surface of the bearing outer ring 1 is phosphated to form an anti-corrosion layer for protecting the bearing outer ring 1 and preventing corrosion caused by contact between air and the bearing outer ring 1. The thickness of the bearing outer ring 1 is H2, 10cm<H2<13cm.

[0032] The bearing inner ring 2 is provided with a second spherical surface 201 and a bearing hole 202, and the second spherical surface 201 abuts against the first spherical surface 102. The second spherical surface 201 of the bearing inner ring 2 has a hard chrome-plated layer, and the material of the layer is GCr15 steel, which improves the comprehensive performance of the bearing. The thickness of the bearing inner ring 2 is H1, 10cm

[0033] The outer diameter of the bearing inner ring 2 is smaller than the outer diameter of the bearing outer ring 1 .

[0034] A self-lubricating layer 3 is provided between the first spherical surface 102 and the second spherical surface 201 . The material of the self-lubricating layer 3 is PTFE braid, which can improve the self-lubricating performance of the bearing and reduce wear.

[0035] The self-lubricating layer 3 is connected to the first spherical surface 102 through a limiting mechanism. The limiting mechanism includes a clamping strip 301, an annular strip 302, a clamping groove 103 and an annular groove. The clamping strip 301 is distributed in an annular shape on the outer surface of the self-lubricating layer 3. The clamping groove 103 is distributed in an annular shape on the first spherical surface 102. The clamping strip 301 matches the clamping groove 103. The annular strip 302 is provided on the outer side of the self-lubricating layer 3 near the port. The first spherical surface 102 is provided with an annular groove. The annular strip 302 matches the annular groove. By embedding the clamping strip 301 in the clamping groove 103 and the annular strip 302 in the annular groove, the connection strength and stability between the self-lubricating layer 3 and the first spherical surface 102 can be improved, and the lubrication effect between the bearing inner ring 2 and the bearing outer ring 1 can be further improved, and the wear can be reduced and the service life can be extended.

[0036] Through the design of the above structure, not only can the connection strength and stability between the self-lubricating layer 3 and the bearing outer ring 1 be improved, the performance of the thrust spherical bearing can be improved to meet the high load and harsh working conditions of the articulated joints of engineering machinery, but also it has the advantages of high reliability, strong load-bearing capacity, good adaptability, easy installation, etc. At the same time, it optimizes the internal structure of the bearing to avoid premature fatigue failure of the product, so that the product has good wear resistance and lubrication performance, and improves the reliability and service life of the product.

[0037] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.​

Claims

1. Thrust spherical bearing for truck double axle bracket, including A bearing outer ring, wherein the bearing outer ring is provided with a first spherical surface; and a bearing inner ring, the bearing inner ring being provided with a second spherical surface, the second spherical surface being against the first spherical surface; Features: A self-lubricating layer is provided between the first spherical surface and the second spherical surface, and the self-lubricating layer is connected to the first spherical surface through a limiting mechanism.

2. The thrust spherical plain bearing for a truck dual-axle support according to claim 1, characterized in that: The material of the self-lubricating layer is PTFE braid.

3. The thrust spherical plain bearing for a truck dual-axle support according to claim 1, characterized in that: The limiting mechanism includes a clamping strip, an annular strip, a clamping groove and an annular groove. The clamping strip is distributed in an annular shape on the outer surface of the self-lubricating layer, and the clamping groove is distributed in an annular shape on the first spherical surface. The clamping strip matches the clamping groove. The annular strip is arranged on the outer side surface of the self-lubricating layer near the port. The annular groove is arranged in the first spherical surface, and the annular strip matches the annular groove.

4. The thrust spherical plain bearing for a truck dual-axle support according to claim 1, characterized in that: The second spherical surface of the bearing inner ring has a hard chrome plating layer, and the material of the plating layer is GCr15 steel.

5. The thrust spherical plain bearing for a truck dual-axle support according to claim 1, characterized in that: The surface of the bearing outer ring is phosphated to form an anti-corrosion layer.

6. The thrust spherical plain bearing for a truck dual-axle support according to claim 1, characterized in that: The thickness of the bearing inner ring is H1, 10cm<H1<15cm.

7. The thrust spherical plain bearing for a truck dual-axle support according to claim 1, characterized in that: The thickness of the bearing outer ring is H2, 10cm<H2<13cm.

8. The thrust spherical plain bearing for a truck dual-axle support according to claim 1, characterized in that: The outer diameter of the bearing inner ring is smaller than the outer diameter of the bearing outer ring.

Images