Normally closed clutch and air compressor system
By designing a normally closed clutch, the torque transmission path between the air compressor and the engine can achieve an engagement state of more than 80%, solving the problem of resource waste in normally open clutches and improving the working efficiency of the air compressor.
Patent Information
- Application Number
- CN202520862122.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-30
AI Technical Summary
In existing air compressor systems, the normally open clutch is disengaged more than 80% of the time, resulting in wasted engine resources and low operating efficiency.
Design a normally closed clutch that uses a piston to push a drive ring to drive a rotating hub, causing the friction plates and gaskets to come into contact and achieve torque transmission. The clutch operates in a combined state for more than 80% of the time, making use of engine resources.
Improve the working efficiency of the air compressor, make full use of engine resources, and reduce power interruption time by considering that the working status accounts for more than 80%.
Smart Images
Figure CN223854710U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile parts, and particularly relates to a normally closed clutch and an air compressor system. BACKGROUND
[0002] In the current air compressor system, the clutch used to connect the engine and the air compressor is mostly a normally open clutch.
[0003] The working principle of the normally open clutch is as follows: when the air compressor pumps air into the cylinder of the normally open clutch, the piston in the cylinder is lifted, the piston pushes the related components of the clutch, the friction plate of the clutch is separated from the gasket, the clutch stops transmitting torque, and the engine and the air compressor enter a power interruption state.
[0004] The defect of the normally open clutch is that, in the entire life cycle, the separation state accounts for more than 80%, and the combination state accounts for less than 20%, which means that the engine and the air compressor are in a power interruption state most of the time, resulting in a large amount of engine resources being wasted.
[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the utility model, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE UTILITY MODEL
[0006] The utility model provides a normally closed clutch and an air compressor system, which can realize that the normally closed clutch enters a combination working state when the air compressor pumps air into the cylinder of the normally closed clutch, transmits the torque from the engine to the air compressor, and makes the combination working state account for more than 80% in the entire life cycle of the normally closed clutch, so as to fully utilize the engine resources and improve the working efficiency of the air compressor.
[0007] According to one aspect of the utility model, a normally closed clutch for an air compressor is provided, which comprises: a driving ring, a first end surface of the driving ring is connected to a piston, the piston is located in a cavity in communication with the air compressor, and an inner wall of the driving ring is used to connect a crankshaft of the air compressor; a hub is arranged on a second end surface of the driving ring and fixedly connected to the second end surface of the driving ring; an inner support is arranged on a side of the hub away from the driving ring and used to connect an engine; a friction plate is sleeved on the inner support and gap-fitted with the hub; an outer support comprises an annular portion and an end surface portion, the annular portion is sleeved on the hub, and the end surface portion is arranged on a side of the hub facing the driving ring; a return disc spring connects the end surface portion and a first end surface of the driving ring; and a gasket is arranged on an inner wall of the annular portion and gap-fitted with the friction plate.
[0008] In some embodiments, the normally closed clutch has a combined working state, in which the air compressor pumps air into the cavity, the piston pushes the driving ring, the driving ring pushes the hub, and the hub, the friction plate and the gasket are tightly attached.
[0009] In some embodiments, the normally closed clutch has a separated working state, in which the cavity is deflated, the return disc spring pushes the driving ring, the driving ring drives the hub to return, and the hub, the friction plate and the gasket are separated.
[0010] In some embodiments, the second end surface of the hub and the driving ring is fixedly connected by a screw.
[0011] In some embodiments, the screw includes a plurality of circumferentially uniform and spaced.
[0012] In some embodiments, the number of friction plates and gaskets is equal and alternately distributed.
[0013] In some embodiments, the normally closed clutch further comprises a pressure plate arranged on the inner wall of the annular portion, located on the side of the gasket away from the friction plate, and in tight contact with the gasket.
[0014] In some embodiments, the normally closed clutch further comprises a snap spring embedded on the side of the pressure plate away from the gasket.
[0015] In some embodiments, the first end surface of the driving ring is connected to the piston by a bearing.
[0016] According to another aspect of the present application, an air compressor system is provided, comprising an air compressor and a normally closed clutch according to any of the above embodiments, the normally closed clutch being used to connect the engine and the air compressor.
[0017] The beneficial effects of the present application compared with the prior art at least include:
[0018] The normally closed clutch provided by the present application can realize that the normally closed clutch enters the combined working state when the air compressor pumps air into the cylinder of the normally closed clutch, and the torque from the engine is transmitted to the air compressor, so that the combined working state accounts for more than 80% of the entire life cycle of the normally closed clutch, thereby fully utilizing the engine resources and improving the working efficiency of the air compressor.
[0019] Specifically, when the air compressor pumps the air cylinder of the normally closed clutch, the piston in the cavity of the air cylinder is pushed, and then the driving ring is pushed to move, the driving ring drives the hub to move, so that the hub, the friction plate and the gasket are tightly attached, so that the normally closed clutch enters the combined working state, and the torque transmission is realized. The torque from the engine is transmitted to the crankshaft of the air compressor through the torque transmission path of the inner support → the friction plate → the gasket → the outer support → the hub → the driving ring, so as to drive the air compressor to work.
[0020] When the air cylinder is exhausted, the piston no longer has a pushing force on the driving ring, at this time the return disc spring pushes the driving ring, so that the driving ring drives the hub to return, and then the hub, the friction plate and the gasket are separated, and the normally closed clutch enters the separation working state, at this time the power transmission between the engine and the air compressor is interrupted.
[0021] Therefore, the structure design of the normally closed clutch can realize that when the air compressor pumps the air cylinder of the normally closed clutch, the normally closed clutch enters the combined working state, and the combined working state accounts for more than 80% of the entire life cycle, so as to fully utilize the engine resources and improve the working efficiency of the air compressor.
[0022] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0023] The drawings incorporated into the specification and constituting a part of the specification, show embodiments consistent with the utility model, and together with the specification, are used to explain the principles of the utility model. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.
[0024] Figure 1 And Figure 2 The sectional view structure schematic diagram of the normally closed clutch in the embodiment of the utility model is shown. DETAILED DESCRIPTION
[0025] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein. Rather, these implementations are provided as example implementations so that this disclosure will be thorough and complete, and will fully convey the inventive concept to those skilled in the art.
[0026] The drawings are merely schematic illustrations of the utility model and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar structures, so repeated description thereof will be omitted.
[0027] In the description of the utility model, "first", "second" and similar words do not represent any order, quantity or importance, but only distinguish different components. The orientation or position relationship indicated by the terms "left", "right" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model. The meaning of the term "a plurality of" is two or more, unless otherwise specifically limited. In addition, in the description of the utility model, when it is said that a device is "connected" to another device, it not only includes the case of direct connection, but also includes the case of indirect connection through other elements.
[0028] It should be noted that the embodiments of the utility model and the features in different embodiments can be combined with each other without conflict.
[0029] Figure 1 And Figure 2 The utility model discloses a cross section structure of normally closed clutch, combines Figure 1 And Figure 2 The utility model discloses a normally closed clutch, which comprises:
[0030] The first end surface 11 of the driving ring 10 is connected with the piston 20, the piston 20 is located in the cavity 22 communicated with the air compressor, and the inner wall 100 of the driving ring 10 is used for connecting the crankshaft of the air compressor.
[0031] The hub 30 is arranged on the second end surface 12 of the driving ring 10 and is fixedly connected with the second end surface 12 of the driving ring 10.
[0032] The inner support 40 is arranged on the side, away from the driving ring 10, of the hub 30 and is used for connecting the engine.
[0033] The friction plate 50 is sleeved on the inner support 40 and is in gap cooperation with the hub 30.
[0034] The outer support 60 comprises an annular portion 61 and an end surface portion 62, the annular portion 61 is sleeved on the hub 30, and the end surface portion 62 is arranged on the side of the hub 30, facing the driving ring 10.
[0035] The return disc spring 70 is connected between the end surface portion 62 and the first end surface 11 of the driving ring 10.
[0036] The gasket 80 is arranged on the inner wall of the annular portion 61 and is in gap cooperation with the friction plate 50.
[0037] When the air compressor pumps the cylinder of the normally closed clutch, the piston 20 in the cavity 22 of the cylinder is pushed in the Z1 direction, the piston 20 in turn pushes the driving ring 10 to move in the Z1 direction, the driving ring 10 drives the hub 30 to move in the Z1 direction, so that the hub 30, the friction plate 50 and the gasket 80 are tightly attached, and the normally closed clutch enters the combined working state to realize torque transmission. The torque from the engine is transmitted to the crankshaft of the air compressor through the torque transmission path of the inner support 40→the friction plate 50→the gasket 80→the outer support 60→the hub 30→the driving ring 10, so as to drive the air compressor to work.
[0038] The first end surface 11 of the driving ring 10 can be connected with the piston 20 through a bearing, so as to realize stable connection and reduce friction.
[0039] When the cylinder is exhausted, the piston 20 no longer has a pushing force on the driving ring 10, at this time the return disc spring 70 pushes the driving ring 10 to return in the Z2 direction, so that the driving ring 10 drives the hub 30 to return in the Z2 direction, and then the hub 30, the friction plate 50 and the gasket 80 are separated, and the normally closed clutch enters the separation working state, at this time the power transmission between the engine and the air compressor is interrupted.
[0040] The structure design of the normally closed clutch can realize that when the air compressor pumps the cylinder of the normally closed clutch, the normally closed clutch enters the combined working state, and the torque from the engine is transmitted to the air compressor, so that the combined working state of the normally closed clutch accounts for more than 80% in the whole life cycle of the normally closed clutch, so as to fully utilize the engine resources and improve the working efficiency of the air compressor.
[0041] In some embodiments, the hub 30 and the second end surface 12 of the driving ring 10 are fixedly connected through the screws 33. The screws 33 can include a plurality of circumferentially uniform and spaced-apart screws, for example, six screws 33 are arranged at intervals of 60° in sequence, so as to realize stable connection between the hub 30 and the driving ring 10.
[0042] In some embodiments, the number of the friction plates 50 and the gaskets 80 is equal and they are alternately distributed. For example, the friction plates 50 and the gaskets 80 each include four pieces and are alternately distributed, but are not limited thereto.
[0043] In some embodiments, the normally closed clutch further comprises a pressure plate 90 arranged on the inner wall of the annular portion 61, located on the side of the gasket 80 away from the friction plate 50, and tightly pressed against the gasket 80. The side of the pressure plate 90 away from the gasket 80 can also be embedded with a snap spring 92 to realize the pressure plate 90 tightly pressing the gasket 80.
[0044] The assembling process of the normally closed clutch comprises: placing the hub 30 in the outer support 60, placing the return disc spring 70, placing the driving ring 10, connecting the driving ring 10 and the hub 30 by the screw 33, placing the friction plate 50 and the gasket 80, placing the pressure plate 90 and the clamping spring 92, and finally placing the inner support 40, so that the assembling of the normally closed clutch is completed.
[0045] The utility model embodiment further provides an air compressor system, comprising air compressor and the normally closed clutch as any embodiment described above, the normally closed clutch is used for connecting engine and air compressor.
[0046] The air compressor system is configured with the normally closed clutch, so that when the air compressor pumps the cylinder of the normally closed clutch, the normally closed clutch enters the combined working state, the torque from the engine is transmitted to the air compressor, the combined working state of the normally closed clutch accounts for more than 80% in the whole life cycle, so that the engine resources are fully utilized, and the working efficiency of the air compressor is improved.
[0047] The above content is a further detailed description of the utility model made in combination with specific preferred embodiments, and cannot be considered as limiting the specific implementation of the utility model to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, some simple deductions or substitutions can be made without departing from the concept of the utility model, and all of them should be considered as belonging to the protection scope of the utility model.
Claims
1. A normally closed clutch for use in an air compressor, comprising: The constant closed clutch comprises: a driving ring, a first end surface of the driving ring being connected with a piston, the piston being located in a cavity in communication with an air compressor, an inner wall of the driving ring being used for connecting a crankshaft of the air compressor; a hub, the hub being arranged on a second end surface of the driving ring and being fixedly connected with the second end surface of the driving ring; an inner support, the inner support being arranged on a side of the hub away from the driving ring and being used for connecting an engine; a friction plate, the friction plate being sleeved on the inner support and being in clearance fit with the hub; an outer support, the outer support comprising a ring-shaped portion and an end surface portion, the ring-shaped portion being sleeved on the hub, and the end surface portion being arranged on a side of the hub facing the driving ring; a return disc spring, the return disc spring connecting the end surface portion with the first end surface of the driving ring; a gasket, the gasket being arranged on an inner wall of the ring-shaped portion and being in clearance fit with the friction plate.
2. The normally closed clutch of claim 1, wherein The constant closed clutch has a combined working state, in which: the air compressor pumps air to the cavity, the piston pushes the driving ring, the driving ring pushes the hub, and the hub, the friction plate and the gasket are tightly attached.
3. The normally closed clutch of claim 1, wherein The constant closed clutch has a separated working state, in which: the cavity is deflated, the return disc spring pushes the driving ring, the driving ring drives the hub to return, and the hub, the friction plate and the gasket are separated.
4. The normally closed clutch of claim 1, wherein The hub and the second end surface of the driving ring are fixedly connected through a screw.
5. The normally closed clutch of claim 4, wherein The screw comprises a plurality of circumferentially uniformly spaced.
6. The normally closed clutch of claim 1, wherein The number of the friction plate and the gasket is equal and they are alternately distributed.
7. The normally closed clutch of claim 1, wherein Further comprising: a pressure plate, the pressure plate being arranged on the inner wall of the ring-shaped portion, being located on a side of the gasket away from the friction plate, and being tightly pressed against the gasket.
8. The normally closed clutch of claim 7, wherein, Further comprising: a snap spring, the snap spring being embedded on a side of the pressure plate away from the gasket.
9. The normally closed clutch of claim 1, wherein The first end surface of the driving ring is connected with the piston through a bearing.
10. An air compressor system characterized by, The constant closed clutch is used for connecting an engine and an air compressor.