CN218118495U - Six-gear transmission structure with coaxial double-input three intermediate shafts - Google Patents
Six-gear transmission structure with coaxial double-input three intermediate shafts Download PDFInfo
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- CN218118495U CN218118495U CN202221444924.7U CN202221444924U CN218118495U CN 218118495 U CN218118495 U CN 218118495U CN 202221444924 U CN202221444924 U CN 202221444924U CN 218118495 U CN218118495 U CN 218118495U
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Abstract
The utility model provides a six of coaxial dual input three jackshafts keep off derailleur structure, its simple structure, small, bear big, the reliability is high, and unpowered interruption when keeping off the position and switching. It includes: the input shaft assembly comprises a long input shaft and a short input shaft which are coaxially arranged, the short input shaft is of a hollow structure, and the long input shaft penetrates through the hollow part of the short input shaft and is coaxially arranged; each group of intermediate shaft components is a long intermediate shaft and a short intermediate shaft which are coaxially arranged, the short intermediate shaft is of a hollow structure, and the long intermediate shaft penetrates through the hollow part of the short intermediate shaft and is coaxially arranged; and the output shaft assembly comprises a second shaft which is axially aligned with the long input shaft, the long input shaft and the second shaft are coaxial and are axially arranged front and back, and the second shaft is fixedly connected with a four-six gear hub, a two-five gear hub and a three-three gear hub.
Description
Technical Field
The utility model relates to a technical field of derailleur structure specifically is a six fender derailleur structures of three jackshafts of coaxial dual input.
Background
The existing six-gear transmission for heavy-duty trucks and mine cars has poor reliability due to large torque and bad working conditions, and has power interruption during gear switching, so that the driving feeling is poor, and the ramp vehicle sliding risk is increased; and the existing high-torque and double-input six-gear transmission has a complex structure and a large volume, and increases the difficulty in arrangement of the whole vehicle power assembly.
Disclosure of Invention
To the problem, the utility model provides a six of coaxial dual input three jackshafts keep off derailleur structure, its simple structure, small bear the weight of greatly, and the reliability is high, and unpowered interruption when keeping off the position switching.
A coaxial dual-input three-countershaft six-speed transmission architecture, comprising:
the input shaft assembly comprises a long input shaft and a short input shaft which are coaxially arranged, the short input shaft is of a hollow structure, and the long input shaft penetrates through the hollow part of the short input shaft and is coaxially arranged;
each group of intermediate shaft components is a long intermediate shaft and a short intermediate shaft which are coaxially arranged, the short intermediate shaft is of a hollow structure, and the long intermediate shaft penetrates through the hollow part of the short intermediate shaft and is coaxially arranged;
the output shaft assembly comprises a second shaft, the second shaft is axially aligned with the long input shaft, the long input shaft and the second shaft are coaxial and are axially arranged front and back, and the second shaft is fixedly connected with a four-six gear hub, a two-five gear hub and a three-gear hub;
the opposite ends of the long input shaft and the two shafts are connected through a bushing or a bearing, and two shaft output teeth corresponding to gears are sleeved at the tail end of the long input shaft and in the axial direction of the two shafts;
a coupling gear hub is arranged between the long input shaft and the short input shaft;
three groups of middle shaft assemblies are arranged around the outer ring of a coaxial structure formed by the input shaft assembly and the output shaft assembly, and corresponding middle shaft transmission teeth are sleeved on the middle shaft assemblies;
the long input shaft is fixedly sleeved with long input teeth, the short input shaft is fixedly sleeved with short input teeth, the corresponding long intermediate shaft is fixedly sleeved with long intermediate shaft normally meshed teeth, the short intermediate shaft is fixedly sleeved with short intermediate shaft normally meshed teeth, the long input teeth are meshed with the short intermediate shaft normally meshed teeth, and meanwhile, the short input teeth are meshed with the long intermediate shaft normally meshed teeth;
and the second gear output teeth corresponding to the gears are meshed with the transmission teeth of the intermediate shaft at the corresponding positions.
It is further characterized in that:
the two shafts are also sleeved with a reverse gear hub and two-shaft reverse gear teeth, the reverse gear hub is used for engaging and disengaging reverse gear combination teeth of the two-shaft reverse gear teeth, intermediate shaft reverse gear teeth are fixedly sleeved on the positions, corresponding to the two-shaft reverse gear teeth, of the long intermediate shaft, and the intermediate shaft reverse gear teeth are connected with the two-shaft reverse gear teeth through idle wheels;
the number of the idle wheels is three;
preferably, the short input teeth engage the long intermediate shaft constant mesh teeth;
a second-shaft six-gear tooth is sleeved at the rear end of the long input shaft in the length direction, a second-shaft four-gear tooth is sleeved at the front end of the second shaft in the length direction, and a fourth-six-gear tooth hub is arranged between the front end of the second shaft in the length direction, corresponding to the second-shaft six-gear tooth and the second-shaft four-gear tooth;
two-shaft two-gear teeth and two-shaft five-gear teeth are respectively arranged at the two ends of the two shafts in the length direction corresponding to the two-shaft five-gear hub, two-shaft three-gear teeth and two-shaft one-gear teeth are respectively arranged at the two ends of the two shafts in the length direction corresponding to the one-shaft three-gear hub, and two-shaft reverse gear teeth are arranged at the rear end of the two shafts corresponding to the reverse gear hub;
the short and middle shafts are arranged corresponding to the length directions of the two-shaft six-gear teeth, the two-shaft four-gear teeth and the two-shaft two-gear teeth, and the short and middle shafts are fixedly sleeved with the intermediate shaft six-gear teeth, the intermediate shaft four-gear teeth and the intermediate shaft two-gear teeth respectively; the middle shaft teeth of the corresponding gears are meshed with the two-shaft output teeth of the corresponding gears; the six-gear teeth of the two shafts are long input teeth, and the six-gear teeth of the intermediate shaft on the short and intermediate shafts are constant meshing teeth of the short and intermediate shafts;
the long intermediate shaft is fixedly sleeved with an intermediate shaft five-gear tooth, an intermediate shaft three-gear tooth, an intermediate shaft one-gear tooth and an intermediate shaft reverse-gear tooth at axial positions corresponding to the two-shaft five-gear tooth, the two-shaft three-gear tooth, the two-shaft one-gear tooth and the two-shaft reverse-gear tooth respectively, the intermediate shaft reverse-gear tooth is meshed with the idle wheel, and the rest intermediate shaft teeth are meshed with the two-shaft output teeth corresponding to gears respectively.
After the utility model is adopted, the power of the external power source A and the external power source B is divided into three parts for transmission through the three groups of annularly distributed middle shaft assemblies, so that the bearing requirement of the transmission part is reduced, namely, the reliability of the transmission part is improved by the three middle shaft type transmissions, and the bearing capacity of the transmission is enhanced; when the vehicle shifts gears continuously, two external power sources are combined with each gear for conversion, so that power is not interrupted when gears are switched, driving feeling is improved, and the risk of sliding of the vehicle on the ramp is reduced.
Drawings
FIG. 1 is a block diagram of a structural schematic of an embodiment of the present invention;
FIG. 2 is a circumferential layout of a shafting suitable for use in the present invention;
the reference numerals of the specification are as follows:
the transmission comprises a long input shaft 1, a short input shaft 2, a short input gear 3, a coupling gear engaging gear 4, a coupling gear hub 5, a coupling gear sliding sleeve 6, a second-shaft six-gear 7, a sixth-gear engaging gear 8, a fourth-six gear hub 9, a fourth-six gear sliding sleeve 10, a fourth-gear engaging gear 11, a second-shaft four-gear 12, a second-shaft two-gear tooth 13, a second-gear engaging gear 14, a second-fifth-gear sliding sleeve 15, a second-fifth-gear tooth hub 16, a fifth-gear engaging gear 17, a second-fifth-gear tooth 18, a second-shaft three-gear tooth 19, a third-gear engaging gear 20, a third-gear sliding sleeve 21, a third-gear hub 22, a first-gear engaging gear 23, a second-shaft one-gear tooth 24, a reverse-gear sliding sleeve 25, a reverse-gear hub 26, a reverse-gear engaging gear 27, a second-shaft reverse gear tooth 28, a second-shaft 29, an idle gear 30, an intermediate shaft reverse gear tooth 31, an intermediate shaft one-gear tooth 32, an intermediate shaft three-gear tooth 33, an intermediate shaft five-gear tooth 34, an intermediate shaft second-gear tooth 35, an intermediate shaft second gear tooth 36, a fourth-intermediate shaft intermediate gear tooth, a short-intermediate gear tooth 37, a long gear tooth 38, a long gear tooth 39 and a long gear tooth 38.
Detailed Description
A coaxial dual input three countershaft six speed transmission architecture, as shown in fig. 1 and 2, comprising:
the input shaft assembly comprises a long input shaft 1 and a short input shaft 2 which are coaxially arranged, the short input shaft 2 is of a hollow structure, and the long input shaft 1 penetrates through the hollow part of the short input shaft 2 and is coaxially arranged;
each group of intermediate shaft components is a long intermediate shaft 40 and a short intermediate shaft 37 which are coaxially arranged, the short intermediate shaft 37 is of a hollow structure, and the long intermediate shaft 40 penetrates through the hollow part of the short intermediate shaft 37 and is coaxially arranged;
the output shaft assembly comprises a second shaft 29, the second shaft 29 is axially aligned with the long input shaft 1, the long input shaft 1 and the second shaft 29 are coaxial and are axially arranged front and back, and the second shaft 29 is fixedly connected with a four-six gear hub 9, a two-five gear hub 16 and a one-three gear hub 22;
opposite ends of the long input shaft 1 and the second shaft 29 are connected through a bushing or a bearing, and two shaft output teeth corresponding to gears are sleeved at the tail end of the long input shaft 1 and in the axial direction of the second shaft 29;
a coupling gear hub 5 is arranged between the long input shaft 1 and the short input shaft 2;
three groups of middle shaft assemblies 200 are annularly distributed on the outer ring circumference of a coaxial structure formed by the input shaft assembly 100 and the output shaft assembly 300, and corresponding middle shaft transmission teeth are sleeved on the middle shaft assemblies 200;
the long input shaft 1 is fixedly sleeved with long input teeth, the short input shaft 2 is fixedly sleeved with short input teeth 3, the corresponding long intermediate shaft 40 is fixedly sleeved with long intermediate shaft constant meshing teeth 39, the short intermediate shaft 37 is fixedly sleeved with short intermediate shaft constant meshing teeth, the long input teeth are meshed with the short intermediate shaft constant meshing teeth, and meanwhile, the short input teeth 3 are meshed with the long intermediate shaft constant meshing teeth 39;
two-gear output teeth corresponding to gears are meshed with intermediate shaft transmission teeth at corresponding positions.
The second shaft 29 is also sleeved with a reverse gear hub 26 and a second shaft reverse gear 28, the reverse gear hub 26 is used for engaging and disengaging a reverse gear combination tooth 27 of the second shaft reverse gear 28, the long intermediate shaft 40 is fixedly sleeved with an intermediate shaft reverse gear 31 at a position corresponding to the second shaft reverse gear 28, and the intermediate shaft reverse gear 31 is connected with the second shaft reverse gear 28 through an idler wheel 30;
the number of idler pulleys 30 is three.
In the specific embodiment, an external power source A is connected with a long input shaft 1 to transmit rotary power, an external power source B is connected with a short input shaft 2 to transmit rotary power, the two external power sources can be input simultaneously or singly, the short input shaft 2 is hollow, the long input shaft 1 penetrates through the short input shaft 2, coaxial arrangement is realized, and the structure is compact;
the short input shaft 2 is fixedly connected with a short input tooth 3 and a coupling gear combination tooth 4, and the short input tooth 3 can transmit the rotating power on the short input shaft 2 to the long intermediate shaft constant mesh tooth 39 through meshing connection;
the long input shaft 1 is fixedly connected with a two-shaft six-gear tooth 7 and a coupling gear tooth hub 5, the two-shaft six-gear tooth 7 can transmit the rotating power on the long input shaft 1 to the intermediate shaft six-gear tooth through meshing connection, the two-shaft six-gear tooth 7 is fixedly connected with a six-gear combined tooth 8, and an external spline is distributed outside the coupling gear tooth hub 5;
the coupling gear sliding sleeve 6 is sleeved outside the coupling gear hub 5, an internal spline connected with an external spline on the coupling gear hub 5 is arranged in the coupling gear sliding sleeve 6, and the coupling gear sliding sleeve can axially slide along the coupling gear hub 5 and is connected to the coupling gear combining teeth 4 under the axial shifting of the gear shifting force;
the long intermediate shaft 40 and the short intermediate shaft 37 are coaxially arranged, the short intermediate shaft 37 is hollow, and the long intermediate shaft 40 penetrates through the short intermediate shaft 37 to realize coaxial arrangement and have a compact structure; the long intermediate shaft 40 is fixedly connected with a long intermediate shaft constant meshing gear 39, an intermediate shaft five-gear tooth 34, an intermediate shaft three-gear tooth 33 and an intermediate shaft one-gear tooth 32, and the teeth are correspondingly meshed with the short input tooth 3, the two-shaft five-gear tooth 18, the two-shaft three-gear tooth 19 and the two-shaft one-gear tooth 24 respectively;
the short middle shaft 37 is fixedly connected with a middle shaft six-gear tooth 38, a middle shaft four-gear tooth 36 and a middle shaft two-gear tooth 35 which are respectively and correspondingly meshed and connected with a two-shaft six-gear tooth 7, a two-shaft four-gear tooth 12 and a two-shaft two-gear tooth 13;
a second shaft 29 as power output is axially aligned with the long input shaft 1, and is sleeved with a second shaft four-gear tooth 12, a second shaft two-gear tooth 13, a second shaft five-gear tooth 18, a second shaft three-gear tooth 19, a second shaft one-gear tooth 24 and a second shaft reverse gear tooth 28;
the outer surface is provided with an external spline four-six gear hub 9, a second-five gear hub 16, a first-three gear hub 22 and a reverse gear hub 26 which are fixedly connected with a second shaft 29;
the four-sixth gear sliding sleeve 10 is sleeved outside the four-sixth gear hub 9, an internal spline connected with an external spline on the four-sixth gear hub 9 is arranged in the four-sixth gear sliding sleeve 10, and the four-sixth gear sliding sleeve can axially slide along the four-sixth gear hub 9 under the axial shifting of a shifting force and is connected to the six-sixth gear combination teeth 8 or the four-fourth gear combination teeth 11;
the second-fifth gear sliding sleeve 15 is sleeved outside the second-fifth gear hub 16, an internal spline connected with an external spline on the second-fifth gear hub 16 is arranged in the second-fifth gear sliding sleeve 15, and the second-fifth gear sliding sleeve can axially slide along the second-fifth gear hub 16 under the axial shifting of a shifting force and is connected to the second-fifth gear combination teeth 14 or the fifth-fifth gear combination teeth 17;
a third gear sliding sleeve 21 is sleeved outside a third gear hub 22, an internal spline connected with the external spline on the third gear hub 22 is arranged in the third gear sliding sleeve 21, and the third gear sliding sleeve can axially slide along the third gear hub 22 under the axial shifting of the shifting force and is connected to the third gear combination teeth 20 or the first gear combination teeth 23;
the reverse gear sliding sleeve 25 is sleeved outside the reverse gear hub 26, an internal spline connected with an external spline on the reverse gear hub 26 is arranged in the reverse gear sliding sleeve 25, and the reverse gear sliding sleeve can axially slide along the reverse gear hub 26 under the axial shifting of a gear shifting force and is connected to the reverse gear combination teeth 27;
the idle gear 30 is meshed with the intermediate shaft reverse gear 31 and the two-shaft reverse gear 28 at the same time, so that the direction change is realized;
the long intermediate shaft 40 and the long intermediate shaft constant meshing teeth 39, the intermediate shaft five-gear teeth 34, the intermediate shaft three-gear teeth 33, the intermediate shaft one-gear teeth 32 and the intermediate shaft reverse gear teeth 31 which are fixedly connected with the long intermediate shaft are respectively three and are respectively and uniformly distributed in the circumferential direction around the axis of the secondary shaft 29;
the short input teeth 3 are meshed with the long intermediate shaft constant meshing teeth 39; the two-shaft six-gear tooth 7 is a long input tooth, and the intermediate shaft six-gear tooth 38 on the short and intermediate shaft 37 is a short and intermediate shaft constant meshing tooth;
the short intermediate shaft 37 and the intermediate shaft six-gear tooth 38, the intermediate shaft four-gear tooth 36 and the intermediate shaft two-gear tooth 35 which are fixedly connected with the short intermediate shaft are respectively three and are respectively and uniformly distributed around the axis of the secondary shaft 29 in the circumferential direction;
there are three idler wheels 30, all circumferentially equispaced about the axis of the secondary shaft 29.
The working principle of the coaxial double-input three-intermediate-shaft six-gear transmission structure is as follows:
the short input shaft 2 is hollow, and the long input shaft 1 penetrates through the short input shaft 2, so that coaxial arrangement is realized, and the structure is compact; the long intermediate shaft 40 and the short intermediate shaft 37 are coaxially arranged, the short intermediate shaft 37 is hollow, and the long intermediate shaft 40 penetrates through the short intermediate shaft 37 to realize coaxial arrangement and compact structure;
when power is transmitted in reverse gear, first gear, third gear and fifth gear, an external power source B is connected with a short input shaft 2 to input power into a transmission, a short input gear 3 fixedly connected with the short input shaft 2 can transmit rotary power on the short input shaft 2 to 3 identical long intermediate shaft normally-meshed gears 40 which are uniformly distributed around the axial direction and the circumferential direction of a second shaft 29 in a meshing manner, then the power is transmitted to 3 identical long intermediate shafts 40 which are uniformly distributed around the axial direction and the circumferential direction of the second shaft 29, all the teeth on the long intermediate shafts are driven to rotate together, the power is further transmitted to a second five-shaft gear 18, a second three-shaft gear 19 and a second one-shaft gear 24 which are not sleeved on the second shaft 29 in a meshing manner through gears, and meanwhile, the power can be transmitted to a second reverse gear 28 which is not sleeved on the second shaft 29 through an idler gear 30.
The power transmission principle of each gear is similar, and the gear shifting principle is explained by taking the transmission of the first gear and the reverse gear as an example:
when the vehicle is in first gear, a three-gear sliding sleeve 21 sleeved outside a three-gear hub 22 can slide rightwards along the axial direction of the three-gear hub 22 under the axial shifting of the gear shifting force and is connected to a first-gear combining tooth 23; at the moment, the rotary power of the external power source B is transmitted to the two-shaft one-gear tooth 24 through the three long intermediate shaft constant-meshed teeth 39, the three long intermediate shafts 40 and the three intermediate shaft one-gear teeth 32, then transmitted to the two-shaft 29 through the one-gear combination tooth 23, the three-gear sliding sleeve 21 and the three-gear hub 22, and finally transmitted to the outside through the rightmost end of the two-shaft 29.
When the vehicle is in reverse gear, the reverse gear sliding sleeve 25 sleeved outside the reverse gear hub 26 can slide rightwards along the axial direction of the reverse gear hub 26 under the axial shifting of the gear shifting force and is connected to the reverse gear combining teeth 27;
at this moment, the rotary power of the external power source B passes through the short input gear 3, the three long intermediate shaft constant mesh gear 39, the three long intermediate shaft 40, the three intermediate shaft reverse gear 31, the three idle gears 30 are transmitted, the two-shaft reverse gear 28 is transmitted, the reverse gear combination gear 27, the reverse gear sliding sleeve 25 and the reverse gear hub 26 are transmitted, the power is transmitted to the two shafts 29, finally, the power is transmitted to the outside from the rightmost end of the two shafts 29, the process transmits the initial torque of the power source B to the outside after the three-level gear ratio designed during the reverse gear is amplified, and reverse speed reduction and torque increase are realized.
When the second gear, the fourth gear and the sixth gear are in power transmission, an external power source A is connected with the long input shaft 1 to input power into the transmission, the second-shaft six-gear teeth 7 fixedly connected with the long input shaft 1 can transmit the rotating power on the long input shaft 1 to 3 intermediate-shaft six-gear teeth 38 which are completely identical and are uniformly distributed around the second shaft 29 in the axial circumferential direction through meshing connection, then the power is transmitted to 3 short intermediate shafts 37 which are completely identical and are uniformly distributed around the second shaft 29 in the axial circumferential direction, all the teeth on the short intermediate shafts 37 are driven to rotate together, and the power is further transmitted to the second-shaft four-gear teeth 12 and the second-shaft two-gear teeth 13 which are freely sleeved on the second shaft 29 through gear meshing.
The principle of power transmission of each gear is similar, and the gear shifting principle is explained by taking two-gear and six-gear transmission as an example:
when the vehicle is in a second gear state, the second-fifth gear sliding sleeve 15 sleeved outside the second-fifth gear hub 16 can slide leftwards along the axial direction of the second-fifth gear hub 16 under the axial shifting of the gear shifting force and is connected to the second-fifth gear combining tooth 14; at the moment, the rotary power of the external power source A is transmitted to the second-shaft second-gear tooth 13 through the second-shaft six-gear tooth 7, the three short middle shafts 37 and the three middle-shaft second-gear teeth 35, then transmitted to the second shaft 29 through the second-gear combination tooth 14, the second-fifth-gear sliding sleeve 15 and the second-fifth-gear tooth hub 16, and finally transmitted to the outside through the rightmost end of the second shaft 29, and the process amplifies the initial torque of the power source B through a two-stage gear ratio designed during the second gear and then transmits the amplified initial torque to the outside, so that the speed reduction and torque increase are realized.
When a vehicle is in a sixth gear, the four-sixth gear sliding sleeve 10 sleeved outside the four-sixth gear hub 9 can slide leftwards along the axial direction of the four-sixth gear hub 9 under the axial shifting of a gear shifting force and is connected to the six-sixth gear combination gear 8;
at the moment, the rotary power of the external power source A is transmitted to the second shaft 29 through the second-shaft six-gear tooth 7, the six-gear combination tooth 8, the fourth-six-gear sliding sleeve 10 and the fourth-six-gear tooth hub 9, and finally the power is transmitted to the outside from the rightmost end of the second shaft 29.
When the vehicle is continuously shifted, two external power sources are combined with each gear for conversion, and power is uninterrupted when the gears are switched, namely, power at the output end of the transmission is continuously uninterrupted when a first gear is switched to a second gear, a second gear is switched to a third gear, a third gear is switched to a fourth gear, a fourth gear is switched to a fifth gear, a fifth gear is switched to a sixth gear, a sixth gear is switched to a fifth gear, a fifth gear is switched to a fourth gear, a fourth gear is switched to a third gear, a third gear is switched to a second gear, and a second gear is switched to a first gear.
The principle of uninterrupted power shift is the same, and the example of shifting from the first gear to the second gear is described as follows: when the transmission runs in the first gear, the rotary power of the external power source B is transmitted to the second-shaft first-gear tooth 24 through the three long intermediate shaft constant-meshing teeth 39, the three long intermediate shafts 40 and the three intermediate shaft first-gear tooth 32, then transmitted to the second shaft 29 through the first-gear combination tooth 23, the three-gear sliding sleeve 21 and the three-gear hub 22, and finally transmitted to the outside through the rightmost end of the second shaft 29. When the gear needs to be shifted to the second gear, the power transmission state of the first gear is kept unchanged, the second-fifth gear sliding sleeve 15 can slide leftwards along the axial direction of the second-fifth gear hub 16 under the axial shifting of the gear shifting force and is connected to the second-fifth gear combining tooth 14, namely, the second gear is simultaneously engaged, at the moment, the rotary power of an external power source A is simultaneously transmitted to the second-shaft second-gear tooth 13 through the second-shaft sixth-gear tooth 7, the three short middle shafts 37 and the three middle shafts second-gear tooth 35, then transmitted to the second shaft 29 through the second-second gear combining tooth 14, the second-fifth gear sliding sleeve 15 and the second-fifth gear hub 16, and finally transmitted to the outside through the rightmost end of the second shaft 29; the power output of the power source A and the external power source B is realized at the same time; then a third gear sliding sleeve 21 sleeved outside a third gear hub 22 can slide leftwards along the axial direction of the third gear hub 22 under the axial shifting of the gear shifting force, is disconnected from the first gear combination teeth 23 and returns to the neutral gear; namely: the process completes the switching from the first gear to the second gear without power interruption
The long intermediate shaft 40 and all the teeth fixedly connected to the long intermediate shaft are respectively provided with three teeth and are respectively and uniformly distributed around the axis of the secondary shaft 29; the short intermediate shaft 37 and all the teeth fixedly connected to the short intermediate shaft are respectively provided with three teeth and are respectively and uniformly distributed around the axis of the secondary shaft 29 in the circumferential direction; the number of the idle wheels 30 is three, and the idle wheels are uniformly distributed around the axis of the secondary shaft 29 in the circumferential direction;
three same teeth are uniformly distributed in all the circumferential directions of the three-middle-shaft type transmission, so that the power of an external power source A and the power of an external power source B can be divided into three teeth for transmission, the bearing requirements of transmission parts are reduced, namely the reliability of the transmission parts of the three-middle-shaft type transmission is improved, and the integral bearing of the transmission is enhanced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A coaxial dual-input three-countershaft six-speed transmission architecture, comprising:
the input shaft assembly comprises a long input shaft and a short input shaft which are coaxially arranged, the short input shaft is of a hollow structure, and the long input shaft penetrates through the hollow part of the short input shaft and is coaxially arranged;
each group of intermediate shaft components is a long intermediate shaft and a short intermediate shaft which are coaxially arranged, the short intermediate shaft is of a hollow structure, and the long intermediate shaft penetrates through the hollow part of the short intermediate shaft and is coaxially arranged;
the output shaft assembly comprises a second shaft, the second shaft is axially aligned with the long input shaft, the long input shaft and the second shaft are coaxial and are axially arranged front and back, and a fourth-sixth gear hub, a second-fifth gear hub and a third-third gear hub are fixedly connected to the second shaft;
the opposite ends of the long input shaft and the two shafts are connected through a bushing or a bearing, and two shaft output teeth corresponding to gears are sleeved at the tail end of the long input shaft and in the axial direction of the two shafts;
a coupling gear hub is arranged between the long input shaft and the short input shaft;
three groups of middle shaft assemblies are annularly distributed on the outer ring circumference of a coaxial structure formed by the input shaft assembly and the output shaft assembly, and corresponding middle shaft transmission teeth are sleeved on the middle shaft assemblies;
the long input shaft is fixedly sleeved with long input teeth, the short input shaft is fixedly sleeved with short input teeth, the corresponding long intermediate shaft is fixedly sleeved with long intermediate shaft normally-meshed teeth, the short intermediate shaft is fixedly sleeved with short intermediate shaft normally-meshed teeth, the long input teeth are meshed with the short intermediate shaft normally-meshed teeth, and meanwhile, the short input teeth are meshed with the long intermediate shaft normally-meshed teeth;
and the two-shaft output teeth corresponding to the gears are meshed with the transmission teeth of the intermediate shaft at the corresponding positions.
2. A coaxial dual-input three-countershaft six-speed transmission architecture according to claim 1 wherein: the two shafts are further sleeved with a reverse gear hub and two shaft reverse gear teeth, the reverse gear hub is used for engaging and disengaging reverse gear combination teeth of the two shaft reverse gear teeth, intermediate shaft reverse gear teeth are fixedly sleeved on the positions, corresponding to the two shaft reverse gear teeth, of the long intermediate shaft, and the intermediate shaft reverse gear teeth are connected with the two shaft reverse gear teeth through idle wheels.
3. A coaxial dual-input three-countershaft six speed transmission architecture as claimed in claim 2 wherein: the number of the idler wheels is three.
4. A coaxial dual-input three-countershaft six speed transmission architecture as claimed in claim 2 wherein: the short input teeth are meshed with the long intermediate shaft constant meshing teeth.
5. A coaxial dual-input, three-countershaft six-speed transmission architecture according to claim 4 wherein: the long input shaft is characterized in that a second-shaft six-gear tooth is sleeved at the rear end in the length direction of the long input shaft, a second-shaft four-gear tooth is sleeved at the front end in the length direction of the second shaft, and a fourth-six-gear tooth hub is arranged between the front end in the length direction of the second shaft and corresponds to the second-shaft six-gear tooth and the second-shaft four-gear tooth.
6. A coaxial dual-input three-countershaft six-speed transmission architecture according to claim 5 wherein: the two shafts are respectively provided with two shaft two-gear teeth and two shaft five-gear teeth corresponding to the two shaft five-gear hub at the two ends in the length direction, the two shafts are respectively provided with two shaft three-gear teeth and two shaft one-gear teeth corresponding to the two shaft three-gear hub at the two ends in the length direction, and the two shafts are provided with two shaft reverse gear teeth corresponding to the rear end of the reverse gear hub.
7. A coaxial dual-input three-countershaft six speed transmission architecture as claimed in claim 6 wherein: the short and middle shafts are arranged corresponding to the length directions of the two-shaft six-gear teeth, the two-shaft four-gear teeth and the two-shaft two-gear teeth, and the short and middle shafts are fixedly sleeved with the intermediate shaft six-gear teeth, the intermediate shaft four-gear teeth and the intermediate shaft two-gear teeth respectively; the middle shaft teeth corresponding to the gears are meshed with the two-shaft output teeth corresponding to the gears; the six-gear teeth of the two shafts are long input teeth, and the six-gear teeth of the intermediate shaft on the short and intermediate shafts are constant meshing teeth of the short and intermediate shafts.
8. A coaxial dual-input, three-countershaft six-speed transmission architecture according to claim 7 wherein: the long intermediate shaft is fixedly sleeved with an intermediate shaft five-gear tooth, an intermediate shaft three-gear tooth, an intermediate shaft one-gear tooth and an intermediate shaft reverse-gear tooth at axial positions corresponding to the two-shaft five-gear tooth, the two-shaft three-gear tooth, the two-shaft one-gear tooth and the two-shaft reverse-gear tooth respectively, the intermediate shaft reverse-gear tooth is meshed with the idle wheel, and the rest of the intermediate shaft teeth are respectively meshed with the two-shaft output teeth of corresponding gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221444924.7U CN218118495U (en) | 2022-06-10 | 2022-06-10 | Six-gear transmission structure with coaxial double-input three intermediate shafts |
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| CN202221444924.7U CN218118495U (en) | 2022-06-10 | 2022-06-10 | Six-gear transmission structure with coaxial double-input three intermediate shafts |
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