阅读说明：本技术 变速箱传动系统 (Transmission system of gearbox ) 是由 邓丽华 李吉元 姜杰 冯光军 田鹏飞 李晋 石彦辉 仇宇霞 于 2021-08-17 设计创作，主要内容包括：提供了一种变速箱传动系统,包括：第一输入轴；第二输入轴；第一汇流齿轮；第一传动结构单元和第二传动结构单元；第二汇流齿轮；中间轴；第一和第二同步器齿轮；第三至第五汇流齿轮；行星排；第一同步器；第二同步器；L/H换挡同步器,以及输出轴。该传动结构的结构紧凑,节省布置空间,可保证车辆在爬坡时动力不中断。(There is provided a gearbox drive system comprising: a first input shaft; a second input shaft; a first confluence gear; a first transmission structural unit and a second transmission structural unit; a second confluence gear; an intermediate shaft; first and second synchronizer gears; third to fifth confluence gears; a planet row; a first synchronizer; a second synchronizer; an L/H shift synchronizer, and an output shaft. The transmission structure has compact structure, saves arrangement space and can ensure that the power of the vehicle is not interrupted when the vehicle climbs a slope.)

1. A transmission drive system, comprising:

the first input shaft is connected with the first motor;

the second input shaft is connected with the second motor and can be sleeved outside the first input shaft in a relatively rotating manner;

a first confluence gear connected to the second input shaft;

first transmission constitutional unit and second transmission constitutional unit all include: a first splitter gear; a first parallel axis; the second parallel shaft is sleeved outside the first parallel shaft in a relatively rotating manner; the second shunt gear and the third shunt gear are respectively connected to two ends of the second parallel shaft; a fourth splitter gear and a fifth splitter gear respectively connected to the first parallel shafts;

a second confluence gear connected to the first input shaft;

an intermediate shaft;

first and second synchronizer gears connected to the countershaft;

the third to fifth confluence gears can be sleeved outside the intermediate shaft in a relatively rotating manner, and the first to fifth confluence gears are respectively and correspondingly meshed with the first to fifth shunting gears of the first transmission structure unit and the second transmission structure unit;

the planet row comprises a sun gear, a planet gear, a gear ring and a planet carrier, and the sun gear is connected with the intermediate shaft;

a first synchronizer selectively connecting the first synchronizer gear and the second confluence gear or the third confluence gear;

a second synchronizer selectively connecting the second synchronizer gear and the fourth or fifth bus gear;

an L/H shift synchronizer connected with the ring gear and selectively connected with the box body or the planet carrier, an

And the output shaft is connected with the planet carrier.

2. A gearbox drive system as recited in claim 1, wherein said first input shaft is coaxial with said intermediate shaft.

3. A gearbox drive system according to claim 2, characterised in that the gearbox drive system has a symmetrical arrangement centred on the intermediate shaft and first input shaft.

4. A gearbox gearing system as claimed in any one of claims 1 to 3, wherein said third and fifth transfer gears have R-range teeth attached to their end faces and said second and fourth transfer gears have L-range teeth attached to their end faces, said R-range teeth and L-range teeth being connectable to said first synchronizer gear or said second synchronizer gear via a respective first synchronizer or second synchronizer.

5. A gearbox transmission system according to claim 4, characterised in that the first to fifth splitter gears and the sun gear are arranged in series along the first parallel axis direction.

6. A gearbox transmission system according to claim 4, wherein the first to fifth transfer gears are arranged in series along the direction of the first input shaft.

7. A gearbox gearing system according to claim 6, characterized in that said first synchronizer gear is arranged between the second and third confluence gears and said second synchronizer gear is arranged between the fourth and fifth confluence gears.

8. A gearbox transmission system according to claim 4, wherein the casing and the planet carrier are provided with respective teeth which are connectable to the L/H shift synchroniser.

Technical Field

The invention relates to the field of machinery and vehicle transmission, in particular to a transmission system of a gearbox.

Background

Mineral resources in China are rich, mineral resources are greatly demanded, mineral vehicles which are main tools for mining mineral resources are more and more emphasized, at present, most of the mineral vehicles still adopt a fuel oil type engine and a gearbox, while the mineral vehicles which adopt an electric motor as a power source are fewer, and along with the upgrade of energy resources in China, the electrically driven mineral vehicles are gradually emphasized. The existing motor gearbox mostly adopts a single input source and a single output end, power interruption occurs when gear shifting is caused, a route of a mining vehicle is single, but road conditions are bad, most of time is in a full-load climbing stage, the gear shifting stage is frequent, if power interruption occurs when gear shifting is carried out on a steep slope, great psychological pressure is easily caused to a driver, and accident potential is easily caused.

Accordingly, there is a need for a transmission drive system that addresses one or more of the above-identified problems.

Disclosure of Invention

In order to solve at least one technical problem, according to an aspect of the present invention, a transmission system of a transmission is provided, which employs dual motors, is conveniently and reliably connected to a transmission, ensures that power output is not interrupted when a low gear climbs a slope, and the output power has multiple gears, and can meet vehicle requirements under multiple operating conditions.

Specifically, a gearbox transmission system is provided, characterized by comprising:

the first input shaft is connected with the first motor;

the second input shaft is connected with the second motor and can be sleeved outside the first input shaft in a relatively rotating manner;

a first confluence gear connected to the second input shaft;

first transmission constitutional unit and second transmission constitutional unit all include: a first splitter gear; a first parallel axis; the second parallel shaft is sleeved outside the first parallel shaft in a relatively rotating manner; the second shunt gear and the third shunt gear are respectively connected to two ends of the second parallel shaft; a fourth splitter gear and a fifth splitter gear respectively connected to the first parallel shafts;

a second confluence gear connected to the first input shaft;

an intermediate shaft;

first and second synchronizer gears connected to the countershaft;

the third to fifth confluence gears can be sleeved outside the intermediate shaft in a relatively rotating manner, and the first to fifth confluence gears are respectively and correspondingly meshed with the first to fifth shunting gears of the first transmission structure unit and the second transmission structure unit;

the planet row comprises a sun gear, a planet gear, a gear ring and a planet carrier, and the sun gear is connected with the intermediate shaft;

a first synchronizer selectively connecting the first synchronizer gear and the second confluence gear or the third confluence gear;

a second synchronizer selectively connecting the second synchronizer gear and the fourth or fifth bus gear;

an L/H shift synchronizer connected with the ring gear and selectively connected with the box body or the planet carrier, an

And the output shaft is connected with the planet carrier.

According to yet another aspect of the invention, the first input shaft is coaxial with the intermediate shaft.

According to yet another aspect of the invention, the gearbox drive train has a symmetrical arrangement with the intermediate shaft and the first input shaft as the centre.

According to still another aspect of the present invention, R range teeth are connected to end surfaces of the third and fifth confluence gears, L range teeth are connected to end surfaces of the second and fourth confluence gears, and the R range teeth and the L range teeth may be respectively connected to the first synchronizer gear or the second synchronizer gear through the respective first synchronizer or the second synchronizer.

According to still another aspect of the present invention, the first to fifth split gears and the sun gear are arranged in this order along the first parallel shaft direction.

According to still another aspect of the present invention, the first to fifth confluence gears are sequentially arranged in a direction of the first input shaft.

According to still another aspect of the present invention, the first synchronizer gear is disposed between the second and third confluence gears, and the second synchronizer gear is disposed between the fourth and fifth confluence gears.

According to still another aspect of the present invention, teeth connectable to the L/H shift synchronizer are provided on the case and the carrier, respectively.

According to yet another aspect of the invention, the transmission drive system includes an electric machine reverse rotation reverse gear mechanism.

The invention can obtain one or more of the following technical effects:

1. the double motors are coaxially input, so that the two motors and the transmission are conveniently and reliably connected, the structure is compact, and the arrangement space is saved; the gear shifting executing elements are few, under the condition of no high-low gear shifting, only one gear shifting executing element needs to be synchronized during each gear shifting, the gear shifting time is short, and the gear shifting fault is small.

2. The power transmission paths of the two motors are separated, power can be controlled respectively, the two motors can work independently and simultaneously, energy consumption can be saved due to independent work, power is finally coupled on the middle shaft to be transmitted to the planet row through simultaneous work, and the requirement of full-load large-torque output is met. The two motors are controlled by different gear shifting synchronizers, namely, the power output of the other motor is not influenced when one motor shifts gears, and the power of the vehicle is not interrupted when the vehicle climbs a slope.

3. All power transmission is transmitted through the composite gear, the defects that a single pair of gears is small in power transmission and large in gear size are overcome, and the structure can meet the requirement for safely and reliably transmitting high-power and high-torque power.

4. Through the setting of output end planet row auxiliary box, the power fender position of output increases, satisfies complicated road conditions demand.

5. The motor shaft has few elements, small rotational inertia and short speed regulation response time of the motor; the two motors are respectively transmitted to the intermediate shaft through different external gear, the condition that the external gear transmits the power of the two motors at the same time is avoided, and the safety factor of the gears is high.

6. The reverse gear function is realized through the motor reversal, and the idler wheel is not needed to be matched with the output reverse gear.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic illustration of a transmission drive system according to a preferred embodiment of the present invention.

Detailed Description

The best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings, wherein the detailed description is for the purpose of illustrating the invention in detail, and is not to be construed as limiting the invention, as various changes and modifications can be made therein without departing from the spirit and scope thereof, which are intended to be encompassed within the appended claims.

Example 1

According to a preferred embodiment of the present invention, referring to fig. 1, there is provided a transmission drive system, characterized by comprising:

a first input shaft 101 connected to a first motor;

the second input shaft 102 is connected with the second motor and is sleeved outside the first input shaft 101 in a relatively rotatable manner;

a first confluence gear 103 connected to the second input shaft 102;

first transmission constitutional unit and second transmission constitutional unit all include: a first splitter gear 104; a first parallel axis 105; a second parallel shaft 107, which is rotatably sleeved outside the first parallel shaft 105; a second splitter gear 106 and a third splitter gear 108 respectively connected to both ends of the second parallel shaft 107; a fourth diverging gear 109 and a fifth diverging gear 110 respectively connected to the first parallel shafts 105;

a second confluence gear 111 connected to the first input shaft 101;

an intermediate shaft 114;

first and second synchronizer gears connected to the countershaft 114;

third to fifth confluence gears 113, 115, 117 rotatably sleeved outside the intermediate shaft 114, the first to fifth confluence gears respectively and correspondingly engaging the first to fifth diversion gears of the first transmission structure unit and the second transmission structure unit;

a planetary row comprising a sun gear 118, planet gears 119, a ring gear 120 and a planet carrier 123, said sun gear 118 being connected to said intermediate shaft 114;

a first synchronizer 112 selectively connecting the first synchronizer gear and the second or third confluence gear 111 or 113;

a second synchronizer 116 selectively connecting the second synchronizer gear and the fourth or fifth bus gear 115 or 117;

an L/H shift synchronizer 122 connected with the ring gear 120 and selectively connected with the case 121 or the carrier 123, and

the output shaft 124 is connected to the carrier 123.

According to a further preferred embodiment of the invention, said first input shaft 101 is coaxial with said intermediate shaft 114.

According to a further preferred embodiment of the invention, the gearbox drive train has a symmetrical arrangement with the intermediate shaft 114 and the first input shaft 101 as the centre.

According to another preferred embodiment of the present invention, R-range teeth are connected to end surfaces of the third and fifth confluence gears 113 and 117, L-range teeth are connected to end surfaces of the second and fourth confluence gears 111 and 115, and the R-range teeth and the L-range teeth may be gear-connected to the first synchronizer 112 or the second synchronizer 116 through the corresponding first synchronizer 112 or the second synchronizer 116.

According to a further preferred embodiment of the invention, the first to fifth splitter gears and the sun gear 118 are arranged in succession along the direction of the first parallel axis 105.

According to still another preferred embodiment of the present invention, the first to fifth confluence gears are sequentially arranged along a direction of the first input shaft 101.

According to still another preferred embodiment of the present invention, the first synchronizer 112 is gear-disposed between the second and third confluence gears, and the second synchronizer 116 is gear-disposed between the fourth and fifth confluence gears.

According to a further preferred embodiment of the present invention, the housing 121 and the carrier 123 are respectively provided with teeth that can be coupled to the L/H shift synchronizer 122.

According to yet another preferred embodiment of the present invention, the transmission system of the gearbox comprises an electric machine reverse gear mechanism.

According to another preferred embodiment of the present invention, there is also provided a transmission system of a transmission, which is characterized by comprising two input shafts coaxially arranged, wherein the two input shafts comprise a first input shaft and a second hollow input shaft, the first input shaft penetrates through a hollow inner cavity of the second hollow input shaft and is coaxially arranged, an input end of the first input shaft is connected with an external first motor, an input end of the second hollow input shaft is connected with an external second motor, an output end of the first input shaft is fixedly sleeved with a second-stage confluence gear (second confluence gear), the second confluence gear is meshed with a second-stage diversion gear (second diversion gear) fixedly sleeved on the hollow parallel shafts, the hollow parallel shafts (second parallel shafts) are simultaneously fixedly sleeved with a third-stage diversion gear (third diversion gear) and a third-stage confluence gear (third confluence gear) sleeved on an intermediate shaft, the intermediate shaft is fixedly sleeved with two synchronizers, three gears of the ring sleeve and one gear of the ring sleeve are fixedly sleeved, and the three gears of the ring sleeve, the three-stage confluence gear of the ring sleeve (third confluence gear), the four-stage confluence gear of the ring sleeve (fourth confluence gear), the gear-shifting synchronizers of the second motor of the ring sleeve, the five-stage confluence gear of the ring sleeve (fifth confluence gear) and the tail end of the ring sleeve are fixedly sleeved with the sun gear in sequence. The output end of the second hollow input shaft is fixedly sleeved with a first-stage confluence gear (a first confluence gear), the first-stage confluence gear is meshed with a first-stage shunt gear (a first shunt gear) fixedly sleeved on the first parallel shaft, the first parallel shaft is further fixedly sleeved with a fourth-stage shunt gear (a fourth shunt gear), a fifth-stage shunt gear (a fifth shunt gear) and a ring sleeve, the hollow parallel shaft is sleeved with the fourth-stage confluence gear and the fifth-stage confluence gear, and the fourth-stage shunt gear and the fifth-stage shunt gear are respectively meshed with a fourth-stage confluence gear and a fifth-stage confluence gear which are sleeved on the intermediate shaft in a ring sleeve mode. The tail end of the intermediate shaft is fixedly sleeved with a sun gear and is meshed with a planet gear, the planet gear is sleeved on a planet carrier through a planet gear shaft sleeve, the planet gear is meshed with a gear ring, an L/H gear synchronizer is arranged on the gear ring, the synchronizer can be respectively fixed with a box body and the planet carrier together to form a high gear and a low gear, the tail end of the planet carrier is fixedly sleeved with an output shaft, and the output shaft is used as a power unique output structure of the transmission mechanism.

Preferably, the first motor gear shifting synchronizer can be fixedly connected with the second-stage confluence gear and the third-stage confluence gear left and right respectively so as to meet different reduction ratio requirements of the first motor, and the second motor gear shifting synchronizer can be fixedly connected with the fourth-stage confluence gear and the fifth-stage confluence gear left and right respectively so as to meet different reduction ratio requirements of the second motor. Meanwhile, the power of the first motor and the power of the second motor are converged on the intermediate shaft after being reduced and torque-increased through the respective gear shifting synchronizers, then the power is transmitted to the sun gear of the planet row serving as the auxiliary box, the power is output through the planet carrier of the planet row, and the L/H gear synchronizer arranged on the gear ring can realize the equivalent output or torque-increased output of the torque on the sun gear according to road conditions.

According to another preferred embodiment of the present invention, when the first motor shifting synchronizer 112 is connected to the secondary confluence gear 111, the power of the first motor is transmitted to the secondary confluence gear 111 through the first input shaft 101, and then directly transmitted to the intermediate shaft 114 through the first motor shifting synchronizer 112, and the intermediate shaft 114 transmits the power to the sun gear 118 in the auxiliary box.

Preferably, when the first motor shifting synchronizer 112 is connected with the third-stage confluence gear 113, the power of the first motor is transmitted to the second-stage confluence gear 111 through the first input shaft 101, the second-stage confluence gear 111 is meshed with the second-stage shunt gear 106 to transmit the power to the hollow parallel shaft 107, the power on the hollow parallel shaft 107 is meshed with the third-stage confluence gear 113 through the third-stage shunt gear 108 and the third-stage confluence gear 113 to transmit the power to the third-stage confluence gear 113, and since the first motor shifting synchronizer 112 fixedly sleeved on the intermediate shaft 114 is connected with the third-stage confluence gear 113, the power is transmitted to the intermediate shaft 114 through the synchronizer 112, and the intermediate shaft 114 transmits the power to the sun gear 118 in the auxiliary box.

Preferably, when the second electric machine shifting synchronizer 116 is connected with the fourth-stage confluence gear 115, the power of the second electric machine is transmitted to the first-stage confluence gear 103 through the second input shaft 102, the first-stage confluence gear 103 is meshed with the first-stage splitter gear 104 fixedly sleeved on the parallel shaft 105, so that the power is transmitted to the parallel shaft 105 through the first-stage splitter gear 104, and since the second electric machine shifting synchronizer 116 is connected with the fourth-stage confluence gear 115, the power on the parallel shaft 105 is transmitted to the intermediate shaft 114 through the fourth-stage splitter gear 109, the fourth-stage confluence gear 115 and the second electric machine shifting synchronizer 116, and the intermediate shaft 114 transmits the power to the sun gear 118 in the auxiliary box.

Preferably, when the second motor shifting synchronizer 116 is connected with the fifth-stage confluence gear 117, the power of the second motor is transmitted to the first-stage confluence gear 103 through the second input shaft 102, the first-stage confluence gear 103 is meshed with the first-stage splitter gear 104 fixedly sleeved on the parallel shaft 105, so that the power is transmitted to the parallel shaft 105 through the first-stage splitter gear 104, and since the second motor shifting synchronizer 116 is connected with the fifth-stage confluence gear 117, the power on the parallel shaft 105 is transmitted to the intermediate shaft 114 through the fifth-stage splitter gear 110, the fifth-stage confluence gear 117 and the second motor shifting synchronizer 116, and the intermediate shaft 114 transmits the power to the sun gear 118 in the auxiliary box.

Preferably, when the L/H shift synchronizer 122 is connected to the housing 121, the ring gear 119 is fixedly connected to the housing 120, the ring gear 119 is stationary, and the planetary gear set serves as a speed reducing and torque increasing mechanism to increase the torque transmitted from the countershaft 114 to the sun gear 118 and transmit the torque to the output shaft 124 through the carrier 123.

Preferably, when the L/H shift synchronizer 122 is connected to the carrier 123, the ring gear 119 is fixedly connected to the carrier 123, the ring gear 119 and the carrier 123 rotate at the same speed as the sun gear 118, and the torque transmitted from the countershaft 114 to the sun gear 118 is transmitted through the carrier 123 in a ratio of 1: 1 to the output shaft 124.

The invention can obtain one or more of the following technical effects:

1. the double motors are coaxially input, so that the two motors and the transmission are conveniently and reliably connected, the structure is compact, and the arrangement space is saved; the gear shifting executing elements are few, under the condition of no high-low gear shifting, only one gear shifting executing element needs to be synchronized during each gear shifting, the gear shifting time is short, and the gear shifting fault is small.

2. The power transmission paths of the two motors are separated, power can be controlled respectively, the two motors can work independently and simultaneously, energy consumption can be saved due to independent work, power is finally coupled on the middle shaft to be transmitted to the planet row through simultaneous work, and the requirement of full-load large-torque output is met. The two motors are controlled by different gear shifting synchronizers, namely, the power output of the other motor is not influenced when one motor shifts gears, and the power of the vehicle is not interrupted when the vehicle climbs a slope.

3. All power transmission is transmitted through the composite gear, the defects that a single pair of gears is small in power transmission and large in gear size are overcome, and the structure can meet the requirement for safely and reliably transmitting high-power and high-torque power.

4. Through the setting of output end planet row auxiliary box, the power fender position of output increases, satisfies complicated road conditions demand.

5. The motor shaft has few elements, small rotational inertia and short speed regulation response time of the motor; the two motors are respectively transmitted to the intermediate shaft through different external gear, the condition that the external gear transmits the power of the two motors at the same time is avoided, and the safety factor of the gears is high.

6. The reverse gear function is realized through the motor reversal, and the idler wheel is not needed to be matched with the output reverse gear.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.