Axial one-way clutch torque converter guide wheel

Abstract

The invention discloses a hydraulic torque converter guide wheel of an axial one-way clutch, comprising a driving shell, a disc spring, a clutch plate and a torsion plate. The driving shell is interference-fitted and pressed into the inner cavity of the guide wheel shell to realize the torsion connection between the axial one-way clutch and the guide wheel; the disc spring, the clutch plate and the torsion plate are axially arranged in the inner cavity of the driving shell; at least one circle of clutch claws is arranged on the clutch plate, and the number of clutch claws in each circle is any number of radially arranged; the torsion plate is arranged with a number of torsion grooves corresponding to the number of clutch discs, and the number of torsion grooves in each circle corresponds to the number of clutch claws; the outer diameter of the spline is arranged with spline external teeth, which correspond to the number of internal teeth of the torsion plate to realize torque transmission. The advantages of the invention are that it has a greater torsion bearing capacity in the same space, and reduces the use of axial and radial space under the same torsion bearing requirements.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic components of a hydraulic torque converter, and in particular to a hydraulic torque converter guide wheel of an axial one-way clutch. Background Art

[0002] The torque converter is mainly used in the powertrain system of automatic transmission vehicles. It is a component installed between the engine and the gearbox, providing the vehicle with vibration reduction, noise reduction, power transmission and torque conversion functions.

[0003] In the hydraulic torque converter, the guide wheel is one of the main components of the hydraulic three elements of the hydraulic torque converter, which enables the hydraulic torque converter to achieve the function of torque conversion. The one-way clutches currently used in the guide wheel are basically radial one-way clutch structures such as ball type and wedge type, which have the disadvantages of more parts, complex assembly, and low torque bearing capacity. This is the area that needs to be improved in this application. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a hydraulic torque converter guide wheel of an axial one-way clutch, which can achieve greater torque bearing capacity in the same space, or reduce the use of axial and radial space under the same torque bearing requirements, thereby reducing the number of parts in the guide wheel and reducing the difficulty of assembly.

[0005] In order to solve the above technical problems, the present invention provides a hydraulic torque converter guide wheel of an axial one-way clutch, comprising:

[0006] An axial one-way clutch comprises a drive housing, a disc spring, a clutch plate and a torsion plate;

[0007] The drive housing is press-fitted into the inner cavity of the guide wheel housing by interference fitting, so as to realize the torsion-bearing connection between the axial one-way clutch and the guide wheel;

[0008] The disc spring, clutch disc and torsion disc are axially arranged in the inner cavity of the drive housing;

[0009] The clutch disc has at least one circle of clutch claws arranged thereon, and the number of clutch claws in each circle is any number arranged radially;

[0010] The torsion plate is provided with torsion grooves of a number corresponding to the number of the clutch plate, and the number of torsion grooves in each circle corresponds to the number of the clutch claws;

[0011] The spline has external spline teeth arranged at its outer diameter, which correspond to the number of internal teeth of the torsion plate to achieve torque transmission.

[0012] A plurality of driving grooves are radially arranged at the outer diameter of the driving housing, and a corresponding number of driving angles are radially arranged at the outer diameter of the clutch disc. The driving angles are installed in the driving grooves to realize the transmission of torque.

[0013] The clutch claw is provided with a clutch claw inclination angle, and the torsion groove is provided with a torsion groove inclination angle, and the two inclination angles are both greater than 90 degrees.

[0014] The clutch claw is provided with a clutch disc separation angle, and the torsion groove is provided with a torsion disc separation angle. The two separation angles are chamfered or chamfered right angles. In the process of reverse rotation of the clutch disc and the torsion disc, the separation angle plays a guiding role, causing the clutch disc to produce axial movement, thereby ensuring the separation of the clutch disc and the torsion disc.

[0015] The guide wheel housing and the cover plate are assembled to realize the overall assembly of the hydraulic torque converter guide wheel.

[0016] The axial one-way clutch has two working states, a coupled state and a disengaged state. In the coupled state, the clutch disc and the torsion disc are axially close to each other due to the thrust of the disc spring, and the clutch claws and the torsion grooves are in contact with each other for torsion. Each clutch claw is provided with a clutch claw inclination angle, and each torsion groove is provided with a torsion groove inclination angle. The angles are all greater than 90 degrees to ensure full coupling and torsion in the coupled state. In the disengaged state, the clutch disc and the torsion disc rotate in opposite directions to compress the disc spring, forming a certain axial gap between the two, and the clutch claw is disengaged from the torsion groove. Each clutch claw is provided with a clutch disc separation angle, and each torsion groove is provided with a torsion disc separation angle. The shapes of the two are smooth arcs or inverted right angles, to ensure full separation of the one-way clutch and reduce the hysteresis torque in the disengaged state.

[0017] The superior effects of the structure of the present invention are:

[0018] 1) The guide wheel of the present invention uses an axial one-way clutch, which has a small number of parts and is easy to assemble;

[0019] 2) The guide wheel of the present invention has a greater torsion bearing capacity in the same space, and reduces the use of axial and radial space under the same torsion bearing requirements;

[0020] 3) The guide wheel of the present invention is mainly used in the hydraulic torque converter of the automatic transmission automobile powertrain to achieve higher torque conversion capacity and reduce axial or radial space. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 It is a schematic diagram of the assembly of the present invention;

[0023] Figure 2 It is a schematic diagram of the decomposition of the present invention;

[0024] Figure 3It is a cross-sectional schematic diagram of the one-way clutch in the engaged state of the present invention;

[0025] Figure 4 It is a cross-sectional schematic diagram of the one-way clutch of the present invention in a disengaged state;

[0026] Figure 5 for Figure 3 A partial enlarged view of

[0027] Description of the symbols in the figure

[0028] 1-guide wheel housing;

[0029] 2-driving housing; 201-driving slot;

[0030] 3- disc spring;

[0031] 4 – Clutch plate;

[0032] 401 - driving angle; 402 - outer ring clutch claw;

[0033] 403 - inner race clutch claw; 404 - clutch claw inclination angle;

[0034] 405 – clutch disc separation angle;

[0035] 5-spline; 501-spline external teeth;

[0036] 6-torsion plate;

[0037] 601-torsion plate inner teeth; 602-torsion groove on outer ring;

[0038] 603 - inner ring torsion groove; 604 - torsion groove inclination angle;

[0039] 605 - Torsion plate separation angle;

[0040] 7-Cover. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0042] Figure 1 The schematic diagram of the assembly of the present invention is shown. Figure 2 shows an exploded schematic diagram of the present invention, Figure 3 It is a cross-sectional schematic diagram of the one-way clutch in the engaged state of the present invention, Figure 4 It is a cross-sectional schematic diagram of the one-way clutch in the disengaged state of the present invention, Figure 5 for Figure 3 A partial enlarged view of .

[0043] like Figure 1As shown, the present invention provides a hydraulic torque converter guide wheel of an axial one-way clutch, including a guide wheel housing 1, a drive housing 2, a disc spring 3, a clutch plate 4, a spline 5, a torsion plate 6 and a cover plate 7.

[0044] The drive housing 2 is pressed into the inner cavity of the guide wheel housing 1 by interference fit, thereby realizing a torsional connection between the axial one-way clutch and the guide wheel.

[0045] The axial one-way clutch comprises a drive housing 2, a disc spring 3, a clutch plate 4 and a torsion plate 6. Figure 2 As shown, multiple groups of driving grooves 201 are radially arranged at the outer diameter of the drive housing 2, and multiple groups of driving angles 401 of corresponding number are radially arranged at the outer diameter of the clutch disc 4. The driving angles 401 are installed in the driving grooves 201 to realize the transmission of torque. The clutch disc 4 is arranged with an outer ring clutch claw 402 and an inner ring clutch claw 403. In this embodiment, there are two circles of clutch claws, and the number of clutch claws in each circle is any number of radially arranged ones. The torsion plate 6 is arranged with a corresponding number of outer ring torsion grooves 602 and inner ring torsion grooves 603, and the number of torsion grooves in each circle corresponds to the number of clutch claws. The disc spring 3, the clutch disc 4 and the torsion plate 6 are axially arranged in the inner cavity of the drive housing 2.

[0046] The outer diameter of the spline 5 is provided with external spline teeth 501 , which correspond in number to the internal spline teeth 601 of the torsion plate 6 arranged at the inner diameter thereof, so as to achieve torque transmission.

[0047] The cover plate 7 is finally assembled with the guide wheel housing 1 by interference fit or riveting to realize the overall assembly of the guide wheel of the torque converter.

[0048] like Figure 3-Figure 5 As shown, the axial one-way clutch has two working states, a combined state and a separated state. In the combined state, the clutch plate 4 and the torsion plate 6 are axially close to each other due to the thrust of the disc spring 3, the outer ring clutch claw 402 and the outer ring torsion groove 602 are in contact with each other for torsion, and the inner ring clutch claw 403 and the inner ring torsion groove 603 are also in contact with each other for torsion. Each clutch claw is provided with a clutch claw tilt angle 404, and each torsion groove is provided with a torsion groove tilt angle 604, and both angles are greater than 90 degrees, so as to ensure full combination and torsion in the combined state. In the disengaged state, the clutch disc 4 and the torsion disc 6 rotate in opposite directions to compress the disc spring 3, forming a certain axial gap therebetween. The outer ring clutch claw 402 is disengaged from the outer ring torsion groove 602, and the inner ring clutch claw 403 is also disengaged from the inner ring torsion groove 603. A clutch disc disengagement angle 405 is provided on each clutch claw, and a torsion disc disengagement angle 605 is provided on each torsion groove. The clutch disc disengagement angle 405 and the torsion disc disengagement angle 605 are chamfered or right angled in shape. In the reverse rotation process, the separation angle serves as a guide to cause the clutch disc to move axially, thereby ensuring that the clutch disc and the torsion disc are fully separated and reducing the hysteresis torque in the disengaged state.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydraulic torque converter guide wheel of an axial one-way clutch, characterized in that: include An axial one-way clutch comprises a drive housing, a disc spring, a clutch plate and a torsion plate; The drive housing is press-fitted into the inner cavity of the guide wheel housing by interference fitting, so as to realize the torsion-bearing connection between the axial one-way clutch and the guide wheel; The disc spring, clutch disc and torsion disc are axially arranged in the inner cavity of the drive housing; The clutch disc has at least one circle of clutch claws arranged thereon, and the number of clutch claws in each circle is any number arranged radially; The torsion plate is provided with torsion grooves of a number corresponding to the number of the clutch plate, and the number of torsion grooves in each circle corresponds to the number of the clutch claws; The spline has external spline teeth arranged at its outer diameter, which correspond to the number of internal teeth of the torsion plate to achieve torque transmission; A plurality of drive grooves are radially arranged at the outer diameter of the drive housing, and a corresponding number of drive angles are radially arranged at the outer diameter of the clutch disc. The drive angles are installed in the drive grooves to achieve torque transmission; The clutch claw is provided with a clutch claw inclination angle, and the torsion groove is provided with a torsion groove inclination angle, and the angles of the two inclination angles are both greater than 90 degrees; The clutch claw is provided with a clutch disc separation angle, and the torsion bearing groove is provided with a torsion bearing disc separation angle, and the shapes of the two separation angles are chamfered corners or chamfered right angles.

2. The hydraulic torque converter guide wheel of the axial one-way clutch according to claim 1, characterized in that: The guide wheel housing and the cover plate are assembled to realize the overall assembly of the hydraulic torque converter guide wheel.

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