Clutch and air compressor system

Abstract

The utility model relates to the technical field of automobile parts, and provides a clutch and an air compressor system. The clutch comprises an inner disc bearing frame and a gear hub, the inner disc bearing frame is rotatably installed on the sleeve, and the gear hub and the inner disc bearing frame are connected through a clutch assembly capable of being connected and separated. The first end, close to the gear hub, of the inner disc bearing frame and the gear hub are spaced in the axial direction, the first end of the inner disc bearing frame is installed on the sleeve through the ball bearing, the inner ring of the ball bearing is connected with the sleeve in a sleeved mode and abuts against the gear hub, the outer ring of the ball bearing is connected with the first end of the inner disc bearing frame in a clamped mode, and the inner ring and the outer ring of the ball bearing are staggered in the axial direction. According to the clutch, friction between the inner disc supporting frame and the gear hub can be effectively reduced through the ball bearing, abnormal abrasion is avoided, and therefore the service life of the clutch is prolonged, and the working performance of the clutch is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a clutch and an air compressor system. Background Art

[0002] Clutches are commonly used components in automobiles. For example, a clutch can be installed between an air compressor and the engine. The clutch is connected to the engine's output gear via an inner disc support frame, and to the air compressor's crankshaft via a gear hub. The inner disc support frame and gear hub are connected by a clutch assembly that can be disengaged and engaged, thereby controlling the operating state of the air compressor.

[0003] Specifically, when compressed air is needed, the clutch assembly engages, transmitting power from the engine to the air compressor, generating compressed air. When compressed air is no longer needed, the clutch assembly disengages, disconnecting the air compressor from the engine, saving energy and reducing emissions while extending the life of the air compressor.

[0004] The problem with current clutches is that, ideally, friction should be avoided between the inner disc support and the gear hub, especially when the clutch assembly is disengaged. However, due to the large axial force from the engine side, the inner disc support will be pressed against the gear hub, causing sliding friction, leading to abnormal wear and reducing the service life of the clutch.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0006] In view of this, the utility model provides a clutch and air compressor system, which can effectively reduce the friction between the inner disc support frame and the gear hub, avoid abnormal wear, thereby extending the service life of the clutch and improving the working performance of the clutch.

[0007] One aspect of the present invention provides a clutch, comprising an inner disc support frame and a gear hub, wherein the inner disc support frame is rotatably mounted on a sleeve, and the gear hub and the inner disc support frame are connected by an engageable and disengageable clutch assembly; wherein the first end of the inner disc support frame close to the gear hub is axially spaced from the gear hub, the first end of the inner disc support frame is mounted on the sleeve through a ball bearing, the inner ring of the ball bearing is sleeved with the sleeve and abuts against the gear hub, the outer ring of the ball bearing is clamped with the first end of the inner disc support frame, and the inner ring and outer ring of the ball bearing are staggered in the axial direction.

[0008] In some embodiments, a slot is formed at the first end of the inner disk support frame, and the outer ring of the ball bearing is at least partially embedded in the slot.

[0009] In some embodiments, the outer ring of the ball bearing is interference fit into the slot, and the inner ring of the ball bearing is interference fit into the sleeve and interference fit into the gear hub.

[0010] In some embodiments, the axial clearance between the outer ring of the ball bearing and the gear hub is greater than or equal to 5 mm.

[0011] In some embodiments, the axial bearing capacity of the ball bearing is greater than or equal to 1200N.

[0012] In some embodiments, the second end of the inner disc support frame away from the gear hub is mounted on the sleeve through a needle bearing.

[0013] In some embodiments, the clutch assembly includes a friction plate connected to the inner disc support frame and a pressure plate connected to the outer disc support frame, the gear hub is connected to the outer disc support frame, and the friction plate and the pressure plate can be engaged and disengaged.

[0014] In some embodiments, the friction plate and the inner disc support frame are connected by a spline key, the pressure plate and the outer disc support frame are connected by a spline key, and the gear hub and the outer disc support frame are connected by a spline key.

[0015] Another aspect of the present invention provides an air compressor system, comprising an air compressor and a clutch as described in any of the above embodiments, wherein the inner disc support frame of the clutch is connected to the output gear of the engine, and the gear hub of the clutch is connected to the crankshaft of the air compressor.

[0016] In some embodiments, the inner disc support frame and the output gear are fastened together by bolts, and the gear hub and the crankshaft are connected together by spline joints.

[0017] Compared with the prior art, the beneficial effects of the present invention include at least:

[0018] The clutch of the present invention adds a ball bearing between the inner disc support frame and the gear hub, and the inner disc support frame and the gear hub are spaced axially, and the inner ring and outer ring of the ball bearing are staggered axially, so that the inner disc support frame and the gear hub are in contact only through the ball bearing. The ball bearing has a large axial bearing capacity and can resist axial force, thereby achieving bearing support and avoiding sliding friction between the inner disc support frame and the gear hub. The inner disc support frame and the gear hub only have extremely small rolling friction, effectively avoiding abnormal wear of the inner disc support frame and the gear hub. The inner ring of the ball bearing is sleeved and abuts the gear hub, and the outer ring of the ball bearing is clamped to the inner disc support frame, thus achieving a stable assembly of the ball bearing, ensuring the stability of the ball bearing and reducing the friction between the inner disc support frame and the gear hub, thereby extending the service life of the clutch and improving the working performance of the clutch.

[0019] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0021] Figure 1 and Figure 2 A schematic diagram of the three-dimensional structure of a clutch in an embodiment of the present utility model is shown;

[0022] Figure 3 and Figure 4 A schematic cross-sectional view of a clutch in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0023] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make this disclosure more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art.

[0024] The accompanying drawings are only schematic diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar structures, and their repeated description will be omitted.

[0025] The terms "first," "second," and similar terms used in the specific description do not indicate any order, quantity, or importance, but are simply used to distinguish different components. Terms such as "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are intended solely for ease of description and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, when a device is said to be "connected" to another device, this includes not only direct connections but also indirect connections through other components.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.

[0027] Figure 1 and Figure 2 The three-dimensional structure of the clutch in the embodiment of the utility model is shown in FIG. Figure 3 and Figure 4 The cross-sectional structure of the clutch in the embodiment of the present utility model is shown; Figures 1 to 4 As shown, the clutch provided by the embodiment of the utility model includes:

[0028] The inner disc support frame 10 and the gear hub 20, the inner disc support frame 10 is rotatably mounted on the sleeve 30, and the gear hub 20 and the inner disc support frame 10 are connected by an engageable and disengageable clutch assembly 40;

[0029] Among them, the first end 10a of the inner disk support frame 10 close to the gear hub 20 is spaced from the gear hub 20 in the axial direction Z. The first end 10a of the inner disk support frame 10 is installed on the sleeve 30 through the ball bearing 50. The inner ring 50a of the ball bearing 50 is sleeved on the sleeve 30 and abuts against the gear hub 20. The outer ring 50b of the ball bearing 50 is clamped with the first end 10a of the inner disk support frame 10. The inner ring 50a and the outer ring 50b of the ball bearing 50 are staggered in the axial direction Z.

[0030] The clutch of the present invention provides a ball bearing 50 between the inner disc support frame 10 and the gear hub 20. The inner disc support frame 10 and the gear hub 20 are spaced apart in the axial direction Z, and the inner race 50a and outer race 50b of the ball bearing 50 are staggered in the axial direction Z. This ensures that the inner disc support frame 10 and the gear hub 20 are in contact only through the ball bearing 50. The ball bearing 50 has a large axial bearing capacity and can resist axial forces, providing bearing support and preventing sliding friction between the inner disc support frame 10 and the gear hub 20. This reduces the friction between the inner disc support frame 10 and the gear hub 20 to minimal rolling friction, effectively preventing abnormal wear between the inner disc support frame 10 and the gear hub 20. Among them, the inner ring 50a of the ball bearing 50 is sleeved on the sleeve 30 and abuts the gear hub 20, and the outer ring 50b of the ball bearing 50 is clamped on the inner disc support frame 10, so as to realize the stable assembly of the ball bearing 50 and ensure that the ball bearing 50 is stable to reduce the friction between the inner disc support frame 10 and the gear hub 20, thereby extending the service life of the clutch and improving the working performance of the clutch.

[0031] In some embodiments, the first end 10a of the inner disk support frame 10 defines a slot into which the outer ring 50b of the ball bearing 50 is at least partially embedded. Thus, in the axial direction Z, the outer ring 50b and inner ring 50a of the ball bearing 50 respectively abut the inner disk support frame 10 and the gear hub 20, providing stable axial support. Furthermore, the ball bearing 50 also provides radial support in the radial direction Y.

[0032] In some embodiments, the outer ring 50b of the ball bearing 50 is interference-fitted into the slot, while the inner ring 50a of the ball bearing 50 is interference-fitted into the sleeve 30 and abuts the gear hub 20. This interference fit ensures a secure assembly of the outer ring 50b and inner ring 50a of the ball bearing 50. In some cases, the ball bearing 50 and the inner disc support frame 10, gear hub 20, or sleeve 30 may be fitted with clearance or other means, as long as the ball bearing 50 is securely assembled.

[0033] The specific size of the ball bearing 50 can be set as needed to adapt to the fit between the inner disc support frame 10 / the gear hub 20 / the sleeve 30. For example, in a specific example, the inner diameter of the ball bearing 50 is 30 mm, but not limited to this.

[0034] In some embodiments, the axial clearance between the outer ring 50b of the ball bearing 50 and the gear hub 20 is greater than or equal to 5 mm. In this way, a reasonable axial clearance is maintained between the outer ring 50b of the ball bearing 50 and the gear hub 20 to avoid contact and sliding friction.

[0035] In some embodiments, the axial load capacity of the ball bearing 50 is greater than or equal to 1200 N. Specifically, when the ball bearing 50 is subjected to an axial force of less than 1200 N, axial movement between its inner race 50a and outer race 50b will not occur, thereby preventing sliding friction between the inner disc support frame 10 and the sleeve 30. Thus, the clutch of the present invention can be applied to air compressor systems, effectively resisting the axial force (typically less than 1200 N) from the engine through the ball bearing 50, thereby preventing abnormal wear between the inner disc support frame 10 and the sleeve 30.

[0036] In some embodiments, the second end 10b of the inner disk support frame 10 away from the gear hub 20 is mounted on the sleeve 30 via a needle bearing 60. The needle bearing 60 has a better radial support function so that the inner disk support frame 10 can rotate.

[0037] In some embodiments, the clutch assembly 40 includes a friction plate 41 connected to the inner disc support frame 10 and a pressure plate 42 connected to the outer disc support frame 43. The gear hub 20 is connected to the outer disc support frame 43, and the friction plate 41 and the pressure plate 42 can be engaged and disengaged.

[0038] Under the action of external force, when the friction plate 41 and the pressure plate 42 are compressed, the friction plate 41 and the pressure plate 42 engage, and the clutch transmits power through the transmission path of inner plate support frame 10 → friction plate 41 → pressure plate 42 → outer plate support frame 43 → gear hub 20. When the friction plate 41 and the pressure plate 42 are disengaged, the friction plate 41 and the pressure plate 42 are separated, and the clutch disconnects the power transmission path.

[0039] When a clutch is applied to an air compressor system, the clutch's inner disc support frame 10 is connected to the engine's output gear, and the clutch's gear hub 20 is connected to the compressor's crankshaft. When compressed air is needed, the clutch assembly 40 engages, allowing the clutch to transmit power from the engine via the transmission path from inner disc support frame 10 to clutch assembly 40 to gear hub 20, operating the air compressor and generating compressed air. When compressed air is no longer needed, the clutch assembly 40 disengages, disconnecting the air compressor from the engine, saving energy and reducing emissions while extending the compressor's service life.

[0040] In some embodiments, the friction plate 41 is splined to the inner disc support frame 10, the pressure plate 42 is splined to the outer disc support frame 43, and the gear hub 20 is splined to the outer disc support frame 43. The splined connection achieves a secure connection and torque transmission between the components.

[0041] An embodiment of the present invention also provides an air compressor system, comprising an air compressor and a clutch as described in any of the above embodiments, wherein the inner disc support frame 10 of the clutch is connected to the output gear of the engine, specifically by bolt fastening, and the gear hub 20 of the clutch is connected to the crankshaft of the air compressor, specifically by spline keying.

[0042] The air compressor system of the present invention adopts the above-mentioned clutch, which can realize axial bearing by adding a ball bearing 50 between the inner disc support frame 10 and the gear hub 20, resist the axial force from the engine side, avoid sliding friction between the inner disc support frame 10 and the gear hub 20, and effectively avoid abnormal wear of the inner disc support frame 10 and the gear hub 20, thereby extending the service life of the clutch, improving the working performance of the clutch, and improving the stability and reliability of the air compressor system.

[0043] In addition to air compressor systems, the clutch of the present invention can also be applied to other automotive systems. It can also achieve axial bearing through the ball bearing 50 added between the inner disc support frame 10 and the gear hub 20, thereby extending the service life of the clutch, improving the working performance of the clutch, and improving the stability and reliability of the automotive system in which it is used.

[0044] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A clutch comprising an inner disc support frame and a gear hub, wherein the inner disc support frame is rotatably mounted on a sleeve, and the gear hub and the inner disc support frame are connected by an engageable and disengageable clutch assembly; It is characterized by: The first end of the inner disk support frame close to the gear hub is axially spaced from the gear hub, and the first end of the inner disk support frame is mounted on the sleeve through a ball bearing. The inner ring of the ball bearing is sleeved with the sleeve and abuts against the gear hub, and the outer ring of the ball bearing is clamped with the first end of the inner disk support frame. The inner ring and outer ring of the ball bearing are staggered in the axial direction.

2. The clutch according to claim 1, wherein: A slot is formed at the first end of the inner disk support frame, and the outer ring of the ball bearing is at least partially embedded in the slot.

3. The clutch according to claim 2, wherein: The outer ring of the ball bearing is interference fit in the slot, and the inner ring of the ball bearing is interference fit in the sleeve and interference fit in contact with the gear hub.

4. The clutch according to claim 1, wherein: The axial clearance between the outer ring of the ball bearing and the gear hub is greater than or equal to 5 mm.

5. The clutch according to claim 1, wherein: The axial bearing capacity of the ball bearing is greater than or equal to 1200N.

6. The clutch according to claim 1, wherein: The second end of the inner disc support frame away from the gear hub is installed on the sleeve through a needle bearing.

7. The clutch according to claim 1, wherein: The clutch assembly includes a friction plate connected to the inner disc support frame and a pressure plate connected to the outer disc support frame. The gear hub is connected to the outer disc support frame. The friction plate and the pressure plate can be engaged and disengaged.

8. The clutch according to claim 7, wherein: The friction plate and the inner disc support frame are connected by a spline key, the pressure plate and the outer disc support frame are connected by a spline key, and the gear hub and the outer disc support frame are connected by a spline key.

9. An air compressor system, comprising an air compressor, characterized in that: Also includes: The clutch according to any one of claims 1 to 8, wherein the inner disc support frame of the clutch is connected to the output gear of the engine, and the gear hub of the clutch is connected to the crankshaft of the air compressor.

10. The air compressor system according to claim 9, wherein: The inner disc support frame and the output gear are fastened together by bolts, and the gear hub and the crankshaft are connected by spline bonding.

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