CN213064402U - Inner hub for transmission clutch - Google Patents

Abstract

The present disclosure relates to the technical field of automatic transmissions and provides an inner hub for a clutch of a transmission. This interior hub includes interior hub body, and the periphery of interior hub body is equipped with a plurality of first latches, is equipped with a plurality of second latches between two adjacent first latches, and the width of second latch is less than the width of first latch, is equipped with a plurality of oil grooves of leading on the inner wall of interior hub body, leads oil groove and first latch one-to-one, all is equipped with the oilhole on every first latch, the oilhole with lead the oil groove intercommunication. This disclose seted up a plurality of oil grooves of leading on the inner wall of hub in, hydraulic oil moves towards hub direction in under the effect of centrifugal force, and lateral wall through leading the oil groove blocks hydraulic oil, make hydraulic oil pile up in leading the oil groove, it is extravagant to reduce hydraulic oil, and make hydraulic oil satisfy the cooling and the lubricated demand of friction disc group, the oilhole is seted up on the great first latch of width, the quick lubricated friction disc group of hydraulic oil of being convenient for, and through setting up the intensity of hub and friction disc meshing in the increase of a plurality of first latches.

Description

Inner hub for transmission clutch

Technical Field

The present disclosure relates to the field of automatic transmission technology, and more particularly, to an inner hub for a transmission clutch.

Background

An automotive transmission is a set of transmission devices for coordinating the rotational speed of an engine and the actual driving speed of wheels, and is used for exerting the best performance of the engine. The transmission can generate different gear ratios between an engine and wheels during the running process of the automobile, and the transmission of rotating speeds of different gears is realized.

The manual transmission mainly comprises gears and a rotating shaft, and the speed change and torque change are generated by different gear combinations; the automatic transmission AT consists of a hydraulic torque converter, a planetary gear and a hydraulic control system, and achieves speed and torque changing through a hydraulic transmission and gear combination mode.

Among them, the automatic transmission has advantages of comfortable driving, reducing fatigue of driver, etc., and has become a development direction of modern car configuration. The automatic transmission utilizes a planetary gear mechanism to change speed, can automatically change speed according to the degree of an accelerator pedal and the change of vehicle speed, and a driver only needs to operate the accelerator pedal to control the vehicle speed, so that the driver can watch road traffic with full attention without being confused by gear shifting.

The automatic transmission includes a plurality of planetary gear assemblies and a plurality of shift elements, wherein the shift elements include clutches and brakes. The transmission relationship of each planetary transmission assembly is changed through the gear shifting unit, so that the automatic transmission outputs different rotating speeds. The clutch comprises a friction plate set and a piston device, and the friction plate set is pressed or loosened through the piston device so as to control the clutch to be closed or opened. The inner side and the outer side of the friction plate set are respectively connected with an inner hub and an outer hub, and the friction plate set is connected with other transmission parts through the inner hub and the outer hub so as to control the rotating states of the two transmission parts.

The periphery interval of interior hub is equipped with a plurality of latches, forms the draw-in groove between two adjacent latches, is equipped with on the inner wall of friction disc with draw-in groove assorted spacing tooth for interior hub and friction disc synchronous rotation. When the clutch is used, lubricating oil needs to be supplied to the friction plate set, so that the effects of lubricating and cooling the friction plate set are achieved. In the prior art, an oil hole is usually formed in an inner hub, and lubricating oil flows to a friction plate set through the oil hole under the action of centrifugal force. However, when the oil supply mode is adopted, part of lubricating oil flows away through the inner wall of the inner hub, and a small amount of lubricating oil enters the friction plate set through the oil hole, so that the cooling and lubricating effects of the friction plate set are reduced.

SUMMERY OF THE UTILITY MODEL

To address the above technical problem or at least partially solve the above technical problem, the present disclosure provides an inner hub for a transmission clutch.

The utility model provides an interior hub for derailleur clutch, including interior hub body, the periphery of interior hub body is equipped with a plurality of first latches along its circumference direction interval, every adjacent two be equipped with a plurality of second latches between the first latch, the width of second latch is less than the width of first latch, be equipped with a plurality of oil grooves of leading along its circumference direction interval on the inner wall of interior hub body, lead the oil groove with first latch one-to-one, every all be equipped with the oilhole on the first latch, the oilhole with it is corresponding to first latch lead the oil groove intercommunication.

Optionally, each oil guide groove extends to an end of the inner hub body.

Optionally, each oil hole is opposite to each oil supply position of the friction plate set.

Optionally, each of the oil holes is provided along a radial direction of the inner hub body.

Optionally, the end of the inner hub body is provided with a support sleeve for supporting on the support member.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

this it leads oil groove to have seted up a plurality ofly on the inner wall of hub in to disclose, the inside hydraulic oil of derailleur and the interior hub of clutch all are in the rotation state at the working process, therefore, the inner wall direction of hub removes in the inner wall of hydraulic oil under the effect of centrifugal force, and lateral wall through leading the oil groove blocks hydraulic oil, make hydraulic oil pile up in leading the oil groove, hydraulic oil flows to the friction disc group through leading the oilhole on the oil groove, reduce the waste of hydraulic oil, and make the volume of the hydraulic oil of outflow satisfy the cooling and the lubricated demand of friction disc group, the oilhole is seted up on the great first latch of width, the quick lubricated friction disc group of hydraulic oil of being convenient for, and through setting up a plurality of first latches increase in hub and the intensity of friction disc.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic view of an inner hub of a clutch according to an embodiment of the present disclosure;

FIG. 2 is a front view of an inner hub of the clutch according to the disclosed embodiment;

FIG. 3 is a schematic illustration of the inner hub mounted inside the transmission according to an embodiment of the present disclosure;

fig. 4 is an enlarged view of a portion a in fig. 3.

Wherein, 1, the inner hub body; 2. a first latch; 3. a second latch; 4. an oil guide groove; 5. an oil hole; 6. a support sleeve; 7. a friction plate set.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

With reference to fig. 1 and fig. 2, an inner hub for a transmission clutch provided in an embodiment of the present application includes an inner hub body 1, a plurality of first latches 2 are provided at intervals along a circumferential direction of the outer periphery of the inner hub body 1, a plurality of second latches 3 are provided between every two adjacent first latches 2, and a width of each second latch 3 is smaller than a width of each first latch 2. Specifically, as shown in fig. 2, the first latch 2 and the second latch 3 are both long, and each of the first latch 2 and the second latch 3 is disposed along the axial direction of the inner hub body 1. The distance between each first latch 2 and each second latch 3 is the same, so that the friction plate is convenient to design. As shown in fig. 3 and 4, the shapes of the first latch 2 and the second latch 3 are matched with the shapes of the friction plates, so that a clamping groove is formed between two adjacent first latches 2 and between two adjacent second latches 3, and a limiting tooth on each friction plate is inserted into the clamping groove, so that the friction plates can be arranged on the periphery of the inner hub body 1 and can rotate along with the inner hub body 1.

As shown in fig. 1, a plurality of oil guide grooves 4 are provided on the inner wall of the inner hub body 1 at intervals along the circumferential direction thereof, and the length direction of the oil guide grooves 4 is the same as the axial direction of the inner hub body 1. Lead oil groove 4 and first latch 2 one-to-one, every inboard of first latch 2 all is equipped with one promptly and leads oil groove 4. Referring to fig. 1 to 4, each first latch 2 is provided with an oil hole 5, and the oil hole 5 is communicated with the oil guide groove 4 corresponding to the first latch 2, so that hydraulic oil can enter the friction plate group 7 through the oil hole 5, and the effect of cooling and lubricating the friction plate group 7 is achieved. Specifically, as shown in fig. 1 and 2 in conjunction, each oil hole 5 is opposed to each oil supply position of the friction plate group 7, respectively. Namely, the planes of the oil holes 5 in the circumferential direction of the inner hub body 1 are parallel or coincide, and the oil holes 5 coinciding in the circumferential direction of the inner hub body 1 provide hydraulic oil between the two same friction plates; the plane parallel oil holes 5 in the circumferential direction of the inner hub body 1 are used for providing lubricating oil between two different friction plates, and the lubricating effect of the friction plate group 7 is improved.

Further optimally, each oil guiding groove 4 extends to the end of the inner hub body 1, so that the rest hydraulic oil flows away along the oil guiding groove 4 for lubrication of other parts.

Further optimally, each oil hole 5 is arranged along the radial direction of the inner hub body 1, so that the oil holes 5 are convenient to open, and the processing convenience is improved.

The end of the inner hub body 1 is provided with a support sleeve 6 for supporting on a support component, the inner hub body 1 is supported on the support component through the support sleeve 6, the inner hub body 1 is convenient to position, and the structure of the support sleeve 6 is designed according to actual requirements.

This it has seted up a plurality of oil grooves 4 of leading on the inner wall of hub in to open, the inside hydraulic oil of derailleur and the interior hub of clutch all are in the rotation state at the working process, therefore, hydraulic oil moves towards the inner wall direction of hub in under the effect of centrifugal force, and lateral wall through leading oil groove 4 blocks hydraulic oil, make hydraulic oil pile up in leading oil groove 4, hydraulic oil flows to friction disc group 7 through 5 oilholes on leading oil groove 4, reduce the waste of hydraulic oil, and make the volume of the hydraulic oil that flows satisfy the cooling and the lubricated demand of friction disc group 7, oilhole 5 is seted up on the great first latch 2 of width, make hydraulic oil can flow through the periphery of first latch 2, be convenient for hydraulic oil lubricate friction disc group 7 fast, and through setting up a plurality of first latches 2 increase interior hub and friction disc meshing's intensity.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. The utility model provides an interior hub for clutch of derailleur, its characterized in that, includes interior hub body (1), the periphery of interior hub body (1) is equipped with a plurality of first latch (2) along its circumference direction interval, every adjacent two be equipped with a plurality of second latch (3) between first latch (2), the width of second latch (3) is less than the width of first latch (2), be equipped with a plurality of oil grooves (4) of leading along its circumference direction interval on the inner wall of interior hub body (1), lead oil groove (4) with first latch (2) one-to-one, every all be equipped with oilhole (5) on first latch (2), oilhole (5) with first latch (2) is corresponding lead oil groove (4) intercommunication.

2. An inner hub for a clutch of a transmission according to claim 1, wherein each of the oil-guiding grooves (4) extends to an end of the inner hub body (1).

3. An inner hub for a clutch of a transmission according to claim 1, wherein each of the oil holes (5) is opposed to each of oil supply positions of a friction plate group (7), respectively.

4. An inner hub for a clutch of a transmission according to claim 1, wherein each of the oil holes (5) is provided in a radial direction of the inner hub body (1).

5. An inner hub for a clutch of a transmission according to claim 1, characterized in that the end of the inner hub body (1) is provided with a support sleeve (6) for supporting on a support member.

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