Integrated bearing assembly of new energy air suspension compressor

The integrated bearing assembly design solves the problem of inaccurate verticality caused by bearing and washer precision issues in the air suspension compressor of new energy vehicles, achieving convenient installation, improved precision, reduced costs, and extended component life.

CN224120527UActive Publication Date: 2026-04-14HANGZHOU CHICHUANG MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The crankshaft and connecting rod mechanism of the air suspension compressor in new energy vehicles is not perpendicular to each other due to the machining accuracy and cumulative tolerance of the bearings and washers, which affects the cylinder block accuracy and overall lifespan.

Method used

An integrated bearing assembly is adopted, including a first connecting rod, a second connecting rod, a crank, a first bearing, and a second bearing. It is fixed by a stop block and bolts, which reduces the number of installation parts and improves installation accuracy. The cavity between the inner and outer rings is filled with lubricating grease, and the inner ring extension is fixed to the bearing, simplifying the machining process.

Benefits of technology

It improves ease of installation, enhances installation accuracy and component lifespan, reduces costs, minimizes component stacking errors, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a new energy air suspension compressor integrated bearing assembly which comprises a first connecting rod, a second connecting rod, a crank, first bearings and a second bearing, the two first bearings are connected to the first connecting rod, the second bearing is connected to the second connecting rod, the crank is connected between the first connecting rod and the second connecting rod, and the crank is connected between the first connecting rod and the second connecting rod. The two groups of first bearings are clamped on two sides of the second bearing to fix the second bearing; the installation structure has the advantages of being convenient to install, high in installation precision and capable of prolonging the service life and reducing the cost.
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Description

Technical Field

[0001] This utility model belongs to the field of bearing technology, and in particular relates to an integrated bearing assembly for a new energy air suspension compressor. Background Technology

[0002] To achieve higher flow rates and pressures, air suspension compressors for new energy vehicles often employ bi-stage compression, specifically a reciprocating crank-connecting rod mechanism. The crank has three sets of bearings, separated by washers to prevent interference during operation. Due to the stringent perpendicularity requirements between the connecting rod and crank in the crank-connecting rod mechanism, the machining accuracy and cumulative tolerances of the bearings and washers cannot guarantee perfect parallelism of the mating surfaces. This results in non-perpendicularity between the crank and connecting rod, affecting cylinder block accuracy and overall lifespan. Utility Model Content

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] In order to overcome the shortcomings of the prior art, this utility model provides an integrated bearing assembly for a new energy air suspension compressor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an integrated bearing assembly for a new energy air suspension compressor, comprising a first connecting rod, a second connecting rod, a crank, a first bearing, and a second bearing. The first bearing is provided in two sets, with the two sets of first bearings connected to the first connecting rod, and the second bearing connected to the second connecting rod. The crank is connected between the first connecting rod and the second connecting rod, and the two sets of first bearings are clamped on both sides of the second bearing to fix the second bearing.

[0006] Furthermore, the first bearing includes an inner ring, an outer ring, rolling elements, a cage, and a seal. The inner ring is located inside the outer ring, and the rolling elements are located between the inner and outer rings. One end face of the inner ring extends axially to form an extension; the end face of the extension is a positioning end face.

[0007] Furthermore, the extension is integrally formed with the inner ring.

[0008] Furthermore, the diameter of the extension is the same as the diameter of the inner ring.

[0009] Furthermore, the extension has rounded corners.

[0010] Furthermore, a grease-filled cavity is provided between the inner and outer rings.

[0011] Furthermore, the integrated bearing assembly of the new energy air suspension compressor also includes a stop block, which has a T-shaped structure and is positioned opposite to the crank.

[0012] Furthermore, the stop is fixed to the crank by bolts.

[0013] The advantages of this utility model are:

[0014] Easy installation: The number of parts required for installation is reduced, thus reducing the time spent installing washers.

[0015] Improve installation accuracy: Reduce the number of installation parts and prevent the accumulation of precision issues among parts, thereby improving installation accuracy.

[0016] Extending component lifespan: After installing the gasket, the component is subjected to impact loads during operation. The interaction between the gasket and the bearing accelerates friction and leads to premature failure.

[0017] Cost reduction: The inner ring and extension are processed using the same steps as a single inner ring, which reduces costs. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0019] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the integrated bearing assembly of the new energy air suspension compressor in one embodiment of the present invention.

[0022] Figure 2 for Figure 1 A schematic diagram of the first bearing of the integrated bearing assembly of the new energy air suspension compressor in the embodiment shown.

[0023] The meanings of the reference numerals in the figure are as follows:

[0024] 100, First bearing; 110, Inner ring; 111, Extension; 120, Outer ring; 130, Rolling element; 140, Cage; 150, Seal ring; 200, Second bearing; 300, Second connecting rod; 400, Crank; 500, Stop; 600, First connecting rod; 700, Bolt. Detailed Implementation

[0025] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0026] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0027] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0028] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0029] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figure 1 As shown, an integrated bearing assembly for a new energy air-suspension compressor includes a first connecting rod 600, a second connecting rod 300, a crank 400, a first bearing 100, a second bearing 200, and a stop block 500. The first bearing 100 has two sets, which are connected to the first connecting rod. The second bearing 200 is connected to the second connecting rod 300. The crank 400 is connected between the first connecting rod 600 and the second connecting rod 300. The two sets of first bearings 100 clamp the second bearing 200 on both sides, fixing the second bearing 200. The stop block 500 has a T-shaped structure and is positioned opposite to the crank 400. The stop block 500 is fixed to the crank 400 by bolts 700 and abuts against the first bearing 100 to fix the first bearing 100.

[0032] Specifically, such as Figure 2As shown, the first bearing 100 includes an inner ring 110, an outer ring 120, rolling elements 130, a cage 140, and a seal ring 150. The inner ring 110 is located inside the outer ring 120, and the rolling elements 130, cage 140, and seal ring 150 are located between the inner ring 110 and the outer ring 120. The cage 140 restricts the rolling elements 130 between the inner ring 110 and the outer ring 120. The seal ring 150 is made of rubber, and one sidewall of the seal ring 150 abuts against the outer wall of the inner ring 110. It abuts against the inner wall of the outer ring 120 to form a seal between the inner ring 110 and the outer ring 120; one end face of the inner ring 110 extends axially to form an extension 111; the end face of the extension 111 is a positioning end face, the extension 111 is integrally formed with the inner ring 110, the diameter of the extension 111 is the same as the diameter of the inner ring 110, and the extension 111 is provided with rounded corners; when the two sets of first bearings 100 are connected to the first connecting rod, the extensions 111 of the two sets of first bearings 100 are arranged opposite to each other.

[0033] Furthermore, a grease-filled cavity is provided between the inner ring 110 and the outer ring 120.

[0034] Specifically, the second bearing 200 is a conventional ordinary bearing in the prior art.

[0035] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An integrated bearing assembly for a new energy air-suspension compressor, characterized in that: It includes a first connecting rod, a second connecting rod, a crank, a first bearing, and a second bearing. The first bearing is provided in two sets, with the two sets of the first bearing connected to the first connecting rod. The second bearing is connected to the second connecting rod, and the crank is connected between the first connecting rod and the second connecting rod. The two sets of the first bearing clamp the second bearing on both sides to fix the second bearing.

2. The integrated bearing assembly for the new energy air-suspension compressor according to claim 1, characterized in that: The first bearing includes an inner ring, an outer ring, rolling elements, a cage, and a seal. The inner ring is located inside the outer ring, and the rolling elements are located between the inner ring and the outer ring. One end face of the inner ring extends axially to form an extension. The end face of the extension is a positioning end face.

3. The integrated bearing assembly for the new energy air-suspension compressor according to claim 2, characterized in that: The extension is integrally formed with the inner ring.

4. The integrated bearing assembly for the new energy air-suspension compressor according to claim 2, characterized in that: The diameter of the extension is the same as the diameter of the inner ring.

5. The integrated bearing assembly for the new energy air-suspension compressor according to claim 2, characterized in that: The extension has rounded corners.

6. The integrated bearing assembly for the new energy air-suspension compressor according to claim 2, characterized in that: A lubricating grease filling cavity is provided between the inner ring and the outer ring.

7. The integrated bearing assembly for the new energy air-suspension compressor according to claim 1, characterized in that: It also includes a stop block, which has a T-shaped structure and is positioned opposite to the crank.

8. The integrated bearing assembly for the new energy air-suspension compressor according to claim 7, characterized in that: The stop block is fixed to the crank by bolts.