阅读说明：本技术 液力变矩器总成 (Hydraulic torque converter assembly ) 是由 葛凤龙 张辉明 龚菲 于 2019-11-29 设计创作，主要内容包括：本发明提供的一种液力变矩器总成,设置于发动机和变速箱之间,并分别与发动机和变速箱传动连接。包括壳体和减振装置,减振装置位于壳体外,且减振装置的一端与壳体的外壁面固定连接,另一端与汽车发动机的曲轴传动连接。由于减振装置设置于液力变矩器壳体的外部,可以充分利用变速箱前壳体的径向空间,扩大弹簧的分布半径,在传递同样大小扭矩的条件下,弹簧刚度更低,更有利于提高减振能力。减振装置可充分利用变速箱前壳体的径向空间,扩大弹簧的分布半径,因此具有减振效果好的优点。(The invention provides a hydraulic torque converter assembly which is arranged between an engine and a gearbox and is in transmission connection with the engine and the gearbox respectively. The vibration damping device is positioned outside the shell, one end of the vibration damping device is fixedly connected with the outer wall surface of the shell, and the other end of the vibration damping device is in transmission connection with a crankshaft of an automobile engine. Because the damping device is arranged outside the shell of the hydraulic torque converter, the radial space of the front shell of the gearbox can be fully utilized, the distribution radius of the spring is enlarged, the rigidity of the spring is lower under the condition of transmitting the torque with the same size, and the damping capacity is more favorably improved. The damping device can fully utilize the radial space of the front shell of the gearbox, and the distribution radius of the spring is enlarged, so that the damping device has the advantage of good damping effect.)

1. A hydraulic torque converter assembly is arranged between an engine and a gearbox and is in transmission connection with the engine and the gearbox respectively; the vibration damping device is characterized by comprising a shell and a vibration damping device, wherein the vibration damping device is positioned outside the shell, one end of the vibration damping device is fixedly connected with the outer wall surface of the shell, and the other end of the vibration damping device is in transmission connection with a crankshaft of an automobile engine.

2. The torque converter assembly of claim 1, wherein the damping device comprises a force transmitting disc, a damping mechanism, and a force transmitting plate; wherein the content of the first and second substances,

the force transmission disc is elastically connected with the force transmission plate through the vibration reduction mechanism, the force transmission disc is fixedly connected with the crankshaft, the force transmission plate is fixedly connected to the outer wall surface of the shell, and the engine transmits power to the shell through the force transmission disc, the vibration reduction mechanism and the force transmission plate.

3. A torque converter assembly as recited in claim 2 wherein said force transmitting plate is provided with a threaded aperture, said force transmitting plate being bolted to said crankshaft through said threaded aperture.

4. The torque converter assembly as recited in claim 2 wherein said damping mechanism comprises a damping spring and a spring carrier; wherein the content of the first and second substances,

the damping spring is fixedly connected to the spring frame, and the spring frame is fixedly connected with the force transmission disc and the force transmission plate respectively.

5. A torque converter assembly as recited in claim 3 wherein said damper spring is provided with a spring seat and said spring carrier is provided with a guide slot; wherein the content of the first and second substances,

the vibration reduction spring is placed in the guide groove, the spring seats are fixed at two ends of the guide groove to limit the vibration reduction spring to be separated from the guide groove, and then the vibration reduction spring is fixed on the spring frame.

6. The torque converter assembly of claim 5, wherein the outer race of the force transfer plate is provided with a pawl that snaps into the guide slot and contacts the spring seat, and the inner race of the force transfer plate is provided with a bolt hole that mates with the housing, through which the force transfer plate is bolted to the housing.

7. A torque converter assembly as recited in claim 1 wherein said force transmitting plate is provided with a plurality of weight-reducing apertures, said plurality of weight-reducing apertures being circumferentially disposed about said central throughbore.

8. The torque converter assembly as recited in any of claims 1-7 further comprising a hydrodynamic lock-up device, said hydrodynamic lock-up device comprising a pump impeller, a turbine runner, and a stator, said pump impeller, said turbine runner, and said stator being disposed within said housing, said pump impeller being drivingly connected between said turbine runner and said turbine runner, said pump impeller being fixedly connected to an inner wall of said housing, said turbine runner being drivingly connected to an input shaft of said transmission;

the power transmission plate transmits the power to the shell, and the power is transmitted to an input shaft of the gearbox through the turbine after being subjected to torque conversion through the pump impeller, the turbine and the guide wheel.

9. The torque converter assembly of claim 8, wherein the hydrodynamic locking device further comprises a limit snap ring, a sealing washer, a seal oil seal, and a limit hub; the shell is provided with a through hole, and the input shaft penetrates through the through hole in the shell; and the number of the first and second electrodes,

the limiting clamp ring, the sealing washer, the sealing oil seal and the limiting wheel hub are all arranged at the connecting part of the input shaft and the through hole; wherein the content of the first and second substances,

the limiting clamping ring and the sealing washer are used for axially positioning the input shaft, and the sealing oil seal and the limiting hub are used for sealing the joint of the input shaft and the through hole.

10. A torque converter assembly as recited in claim 9 wherein said housing is provided with a mounting block, said transfer plate being secured to said mounting block; and the number of the first and second electrodes,

and a locking clutch is arranged between the turbine and the inner wall surface of the shell and locks the turbine.

Technical Field

The invention relates to the field of automobiles, in particular to a hydraulic torque converter assembly.

Background

In an automatic transmission automobile transmission system, power transmission between an engine and a gearbox is mainly performed through a flexible disk and a hydraulic torque converter. The flexible disk is connected with an engine crankshaft and a hydraulic torque converter shell through bolts, the hydraulic torque converter is composed of a cover assembly, a pump impeller, a turbine, a guide wheel, a locking clutch and the like, and power is transmitted to the gearbox through the input shaft after torque conversion and vibration reduction, so that power transmission of a transmission system is completed. The hydraulic torque converter in the prior art has the functions of vibration reduction, locking, hydraulic transmission and the like, wherein the design of a vibration reduction mechanism is limited by a shell of the hydraulic torque converter, the distribution radius of a spring is small, the optimization of vibration reduction performance is not facilitated, and the defects that a power assembly is applied, the structure is not easy to adjust, the platform implementation is difficult and the like are overcome.

Therefore, the torque converter in the related art has a problem of poor vibration damping performance.

Disclosure of Invention

The invention aims to solve the problem that a hydraulic torque converter in the prior art is poor in vibration reduction performance. The invention provides a hydraulic torque converter assembly which has the advantage of good vibration reduction performance.

In order to solve the above problems, an embodiment of the present invention provides a torque converter assembly, disposed between an engine and a transmission, and in transmission connection with the engine and the transmission, respectively; the vibration damping device is positioned outside the shell, one end of the vibration damping device is fixedly connected with the outer wall surface of the shell, and the other end of the vibration damping device is in transmission connection with a crankshaft of an automobile engine.

By adopting the technical scheme, the damping device is arranged outside the shell of the hydraulic torque converter, so that the radial space of the front shell of the gearbox can be fully utilized, the distribution radius of the spring is enlarged, the rigidity of the spring is lower under the condition of transmitting the torque with the same size, and the damping capacity is better improved.

In addition, after the vibration reduction mechanism is removed from the shell, the axial space can be more compact, and the platform is easy to realize.

Another embodiment of the present invention provides a torque converter assembly, wherein the damping device comprises a force transmission disc, a damping mechanism and a force transmission plate; wherein the content of the first and second substances,

the force transmission disc is elastically connected with the force transmission plate through the vibration reduction mechanism, the force transmission disc is fixedly connected with the crankshaft, the force transmission plate is fixedly connected to the outer wall surface of the shell, and the engine transmits power to the shell through the force transmission disc, the vibration reduction mechanism and the force transmission plate.

By adopting the technical scheme, the vibration damper in the embodiment comprises a force transmission disc, a vibration damping mechanism and a force transmission plate; the engine transmits power to the hydraulic torque converter through the force transmission disc, the vibration reduction mechanism and the force transmission plate. The damping device with the structure can be connected with the hydraulic torque converter through the force transmission plate, and the damping performance is better in the using process.

Another embodiment of the present invention provides a torque converter assembly, wherein the force transmission disc is provided with a threaded hole, and the force transmission disc is bolted to the crankshaft through the threaded hole.

Another embodiment of the present invention provides a torque converter assembly, the damping mechanism comprising a damping spring and a spring carrier; wherein the content of the first and second substances,

the damping spring is fixedly connected to the spring frame, and the spring frame is fixedly connected with the force transmission disc and the force transmission plate respectively.

Another embodiment of the present invention provides a torque converter assembly, wherein the damping spring is provided with a spring seat, and the spring holder is provided with a guide groove; wherein the content of the first and second substances,

the vibration reduction spring is placed in the guide groove, the spring seats are fixed at two ends of the guide groove to limit the vibration reduction spring to be separated from the guide groove, and then the vibration reduction spring is fixed on the spring frame.

Another embodiment of the present invention provides a torque converter assembly, wherein an outer ring of the force transmission plate is provided with a claw, the claw is clamped into the guide groove and contacts with the spring seat, an inner ring of the force transmission plate is provided with a bolt hole matched with the housing, and the force transmission plate is connected to the housing through the bolt hole.

In another embodiment of the present invention, a plurality of weight-removing holes are formed in the force-transmitting plate, and the plurality of weight-removing holes are arranged around the central through hole.

Another embodiment of the invention provides a hydraulic torque converter assembly, which further comprises a hydraulic locking device, wherein the hydraulic locking device comprises a pump impeller, a turbine wheel and a guide wheel, the pump impeller, the turbine wheel and the guide wheel are arranged in the shell, the pump impeller is connected between the turbine wheel and the guide wheel in a transmission manner, the pump impeller is fixedly connected with the inner wall of the shell, and the turbine wheel is connected with an input shaft of the gearbox in a transmission manner;

the power transmission plate transmits the power to the shell, and the power is transmitted to an input shaft of the gearbox through the turbine after being subjected to torque conversion through the pump impeller, the turbine and the guide wheel.

Another embodiment of the present invention provides a torque converter assembly, wherein the hydraulic locking device further comprises a limit snap ring, a sealing washer, a sealing oil seal, and a limit hub; the shell is provided with a through hole, and the input shaft penetrates through the through hole in the shell; and the number of the first and second electrodes,

the limiting clamp ring, the sealing washer, the sealing oil seal and the limiting wheel hub are all arranged at the connecting part of the input shaft and the through hole; wherein the content of the first and second substances,

the limiting clamping ring and the sealing washer are used for axially positioning the input shaft, and the sealing oil seal and the limiting hub are used for sealing the joint of the input shaft and the through hole.

Another embodiment of the present invention provides a torque converter assembly, wherein a fixing block is disposed on the housing, and the force transmission plate is fixed to the fixing block; and the number of the first and second electrodes,

and a locking clutch is arranged between the turbine and the inner wall surface of the shell and locks the turbine.

The invention has the beneficial effects that: the damping device makes full use of the radial space of the front shell of the gearbox, and the distribution radius of the spring is enlarged, so that the damping device has the characteristic of good damping effect, and the axial space of the hydraulic locking device is more compact after the damping mechanism is removed. After the hydraulic torque converter is modularized, the vibration reduction spring is convenient to maintain after sale, the cost is low, the axial distance of the force transmission plate of the vibration reduction device can be adjusted to adapt to power assemblies with different axial space requirements, and the platformization is easy. The hydraulic torque converter assembly with the structure is not only suitable for the traditional power assembly, but also can be applied to a new energy power assembly, and is strong in expansibility.

In addition, other features and corresponding advantages of the present invention are set forth in the description that follows, and it is to be understood that at least some of the advantages will be apparent from the description of the invention.

Drawings

FIG. 1 is a schematic diagram of a torque converter assembly according to an embodiment of the present invention.

Description of reference numerals:

11: a ring gear; 12: a force transfer plate; 21: a damping spring; 22: a spring holder; 31: a force transmission plate; 41: limiting the hub; 42: a limit snap ring; 43: sealing the oil seal; 51: a housing; 52: a fixed block; 53: a lock-up clutch; 54: a turbine; 55: a pump impeller; 56: a guide wheel; 6: an input shaft.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

One embodiment of the present embodiment provides a torque converter assembly disposed between and in driving communication with an engine and a transmission, respectively. As shown in fig. 1, the engine includes a housing 51 and a vibration damping device (a portion located on the left side in the drawing), the vibration damping device is located outside the housing 51, one end of the vibration damping device is fixedly connected with the outer wall surface of the housing 51, and the other end of the vibration damping device is in transmission connection with a crankshaft of an automobile engine.

Specifically, in the present embodiment, since the damper device is provided outside the torque converter housing 51, the radial space of the transmission case housing 51 can be fully utilized, the distribution radius of the springs can be enlarged, and the spring stiffness is lower under the condition of transmitting the same magnitude of torque, which is more advantageous for improving the damping capacity.

More specifically, in the present embodiment, after the vibration damping mechanism is removed from the housing 51, the axial space can be made more compact, and the platform can be easily formed.

Further, another embodiment of the present embodiment provides a torque converter assembly, and the damping device includes a force transmission plate 12, a damping mechanism, and a force transmission plate 31.

Specifically, in the present embodiment, the force transmission disc 12 and the force transmission plate 31 are elastically connected by the damping mechanism, the force transmission disc 12 is fixedly connected to the crankshaft, the force transmission plate 31 is fixedly connected to the outer wall surface of the housing 51, and the engine transmits power to the housing 51 through the force transmission disc 12, the damping mechanism, and the force transmission plate 31.

More specifically, in the present embodiment, the damper device includes a force transmission disc 12, a damper mechanism, and a force transmission plate 31; the power transmission disc 12 is elastically connected with the power transmission plate 31 through a damping mechanism, the power transmission disc 12 is fixedly connected with the crankshaft, the power transmission plate 31 is fixedly connected to a shell 51 of the hydraulic torque converter, and the engine transmits power to the hydraulic torque converter through the power transmission disc 12, the damping mechanism and the power transmission plate 31. The damping device with the structure can be connected with the hydraulic torque converter through the force transmission plate 31, and the damping performance is better in the using process.

More specifically, in the present embodiment, the damping device integrates the force transmission disc 12, the damping mechanism and the force transmission plate 31, so that the radial space of the housing 51 can be fully utilized, the distribution radius of the spring is not limited by the housing 51, the damping performance of the damping mechanism is improved, and the damping device has a simple structure and is convenient for after-sale maintenance.

Further, another embodiment of the present embodiment provides a torque converter assembly, wherein the force transmission disc 12 is provided with a threaded hole, and the force transmission disc 12 is bolted to the crankshaft through the threaded hole.

Specifically, in the present embodiment, the force transmission disc 12 can be more firmly connected with the engine crankshaft through the screw threads, and the use reliability of the torque converter assembly can be better.

More specifically, in the present embodiment, the force transmission disc 12 is provided with a gear ring 11 for starting the motor, and the specific structure can be seen in the attached drawings.

Further, another embodiment of the present embodiment provides a torque converter assembly, and the damper mechanism includes a damper spring 21 and a spring holder 22.

Specifically, in the present embodiment, the damper spring 21 is fixedly connected to the spring holder 22, and the spring holder 22 is fixedly connected to the force transmission disc 12 and the force transmission plate 31, respectively.

Further, another embodiment of the present embodiment provides a torque converter assembly, in which the damper spring 21 is provided with a spring seat (not shown), and the spring holder 22 is provided with a guide groove (not shown).

Specifically, in the present embodiment, the damper spring 21 is placed in the guide groove, and the spring seats are fixed to both ends of the guide groove to restrict the damper spring 21 from being separated from the guide groove, thereby fixing the damper spring 21 to the spring holder 22.

Further, another embodiment of the present embodiment provides a torque converter assembly, the outer ring of the force transmission plate 31 is provided with a claw which is clamped into the guide groove and contacts with the spring seat, the inner ring of the force transmission plate 31 is provided with a bolt hole matched with the housing 51, and the force transmission plate 31 is bolted to the housing 51 through the bolt hole.

Specifically, in this embodiment, the jack catch is blocked in the guide slot and is contacted with the spring seat, and the setting of this kind of structure can be convenient for arrange demand adjustment dowel plate 31 according to the power assembly space, can be applied to different power assembly platforms, reduces application cost.

Further, another embodiment of the present embodiment provides a torque converter assembly, wherein the force transmission disc 12 is provided with a plurality of weight removing holes, and the plurality of weight removing holes are arranged around the central through hole in a surrounding manner.

Specifically, in this embodiment, the number of the deduplication holes may be 3, 4, or another number, and the deduplication holes may be specifically set according to actual design and use requirements, which is not limited in this embodiment.

Specifically, in this embodiment, the weight of the force transmission plate 12 can be reduced by the weight reduction holes, the probability of cracks occurring in the force transmission plate is reduced by stress release, and a tool window is provided for installation and after-sale maintenance of the connecting bolts of the force transmission plate 31 and the housing 51.

Further, another embodiment of the present embodiment provides a torque converter assembly, which further includes a hydraulic locking device, where the hydraulic locking device includes a pump impeller 55, a turbine impeller 54, and a stator impeller 56, the pump impeller 55, the turbine impeller 54, and the stator impeller 56 are disposed in the housing 51, the pump impeller 55 is drivingly connected between the turbine impeller 54 and the stator impeller 56, the housing 51 is fixedly connected to the force transmitting plate 31 in the damping device, the pump impeller 55 is fixedly connected to the inner wall of the housing 51, and the turbine impeller 54 is drivingly connected to the input shaft 6 of the transmission.

Specifically, in the present embodiment, the power transmission plate 31 transmits power to the housing 51, and after torque is converted by the pump impeller 55, the turbine runner 54, and the stator 56, the power is transmitted to the input shaft 6 of the transmission through the turbine runner 54.

Further, another embodiment of the present embodiment provides a hydraulic torque converter assembly, wherein the hydraulic locking device further includes a limit snap ring 42, a sealing washer (not shown in the drawings), a sealing oil seal 43, and a limit hub 41; the housing 51 is provided with a through hole, and the input shaft 6 passes through the through hole of the housing 51.

Specifically, in the present embodiment, the limit snap ring 42, the sealing washer, the sealing oil seal 43, and the limit boss 41 are all provided at the connection between the input shaft 6 and the through hole.

More specifically, in the present embodiment, the limit snap ring 42 and the seal washer axially position the input shaft 6, and the seal oil seal 43 and the connection between the limit hub 41 and the through hole of the input shaft 6 are sealed. And the influence on the vibration damper in the working process of the hydraulic locking device is reduced, the axial load of the hydraulic locking device is reduced, the risk of cracks and axial deformation of the force transmission disc 12 and the force transmission plate 31 is reduced, and non-high-strength materials can be selected.

Further, another embodiment of the present embodiment provides a torque converter assembly, wherein a fixing block 52 is disposed on the housing 51, and the force transmission plate 31 is fixed on the fixing block 52.

More specifically, in the present embodiment, a lockup clutch 53 is provided between the turbine 54 and the inner wall surface of the housing 51, and the lockup clutch 53 locks the turbine 54.

Furthermore, the lock-up clutch 53 is provided with a friction surface, so that sliding friction and locking between the friction surface of the lock-up clutch 53 of the turbine 54 and the friction surface of the housing 51 can be realized under pressure control, power can be directly transmitted to the turbine 54 from the housing 51 and then transmitted to the input shaft 6, and the transmission efficiency is improved.

In the use process of the hydraulic torque converter assembly in the embodiment, the power of an engine is transmitted to the force transmission plate 12 through a crankshaft bolt, transmitted to the force transmission plate 31 through the damping spring 21 rack and the damping spring 21 fixed on the plate body, and transmitted to the shell 51 through the bolt, and when the hydraulic locking device needs to perform torque conversion work, the power is transmitted to the input shaft 6 after being subjected to torque conversion through the pump impeller 55 and the turbine 54 in sequence; when the hydraulic locking module is required to perform locking operation, the friction surface of the locking clutch 53 is pressed against the friction surface of the housing 51, and power is directly transmitted to the turbine 54 through the housing 51 and then transmitted to the input shaft 6.

The torque converter assembly that this embodiment provided sets up between engine and the gearbox to be connected with engine and gearbox transmission respectively. The vibration damping device is positioned outside the shell 51, one end of the vibration damping device is fixedly connected with the outer wall surface of the shell 51, and the other end of the vibration damping device is in transmission connection with a crankshaft of an automobile engine. Because the damping device is arranged outside the hydraulic torque converter shell 51, the radial space of the front shell 51 of the gearbox can be fully utilized, the distribution radius of the spring is enlarged, the spring stiffness is lower under the condition of transmitting the torque with the same magnitude, and the damping capacity is more favorably improved. The damping device can fully utilize the radial space of the front shell 51 of the gearbox, and the distribution radius of the springs is enlarged, so that the damping device has the advantage of good damping effect.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.