CN212480024U - Multi-motor power assembly structure - Google Patents

Abstract

The utility model provides a multi-motor power assembly structure, wherein a power output gear, an idler wheel and a motor gear are arranged in a shell, each motor is arranged outside the shell, a rotating shaft of the motor passes through two sides of the shell and is respectively connected with one motor gear, and the motor gear is sleeved on the rotating shaft; a plurality of motor gears are wound on one side of the power output gear; the input end gear and the output end gear are connected through a connecting shaft; the input end gear of each idler wheel is meshed with the two motor gears, each motor gear is meshed with the input ends of the two idler wheels, and the output end gear of each idler wheel is meshed with the power output gear. In the technical scheme, the idle wheel is driven by a plurality of motors with the same rotating speed, so that the power output gear is driven to rotate; compare a single motor, the utility model discloses reduce the volume of motor, reduced the degree of difficulty and the cost of motor design and production.

Description

Multi-motor power assembly structure

Technical Field

The utility model relates to a power take off assembly technical field especially relates to a many motor power assembly structure.

Background

The motor is a device that converts electric energy into kinetic energy. The larger the power to be output by the motor, the larger the volume thereof. The motor itself consumes energy and is converted to heat energy. The large motor needs larger heat dissipation elements, resulting in a complex structure, high cost and large volume of the large power motor.

SUMMERY OF THE UTILITY MODEL

Therefore, a multi-motor power assembly structure is needed to be provided, and manufacturing and production costs of a large power motor are reduced.

To achieve the above object, the inventors provide a multi-motor power assembly structure including: the power output gear, a plurality of idle gears, a plurality of motor gears, a plurality of motors and the shell;

the power output gear, the idle gear and the motor gears are arranged in the shell, each motor is arranged outside the shell, rotating shafts of the motors penetrate through one side of the shell and are respectively connected with one motor gear, and the motors are used for driving the motor gears to rotate;

the motor gears are wound on one side of the power output gear; the idler comprises: the gear transmission mechanism comprises an input end gear, an output end gear and a connecting shaft, wherein the input end gear and the output end gear are connected through the connecting shaft; the input end gear of each idle gear is meshed with one motor gear, the output end gear of each idle gear is meshed with the power output gear, and the middle of the power output gear is used for outputting power.

Furthermore, the number of the power output gears is multiple, the power output gears are connected through a spline shaft on the middle shaft, and the power output gears are sleeved on the spline shaft.

Further, a connecting plate is arranged in the shell and connected with the shell; the power output gears are connected through a spline shaft on the middle shaft, and the power output gears are sleeved on the spline shaft;

a plurality of motor gears, a plurality of motors and a plurality of idle wheels are further arranged on the other sides of the plurality of power output gears, one ends of the idle wheels on two sides are arranged on the shell, and the other ends of the idle wheels on two sides are arranged on the connecting plate; one side of a rotating shaft of the motor penetrates through the shell, and the other side of the rotating shaft of the motor is rotatably arranged on the connecting plate; and each power output gear is meshed with the output end gear of the idle gear.

Further, the power output gear is even;

the relative positions of the motor gears, the motors and the idle wheels on the two sides are the same; the idle wheels on one side are divided into a plurality of groups, and the distances from the input end gears to the output end gears of the idle wheels in each group are the same; the number of the groups of the idle gears is the same as half of the number of the power output gears; a plurality of said idler gears in each set are in mesh with the same power take off gear.

Furthermore, the number of the power output gears is four, the number of the idler gears is six, the number of the motor gears is six, and the number of the motors is six.

Further, a connecting plate is arranged in the shell and connected with the shell;

the other side of the power output gear is also provided with a plurality of motor gears, a plurality of motors and a plurality of idle wheels, and the motor gears, the motors and the idle wheels on the two sides are in the same relative position; one end of the motor gear and the idle wheel on two sides is arranged on the shell, and the other end of the motor gear and the idle wheel is arranged on the connecting plate; the output end gears of the idle gears on two sides are meshed with the power output gear.

Furthermore, the connecting plate is provided with a plurality of holes, and the idler wheels on two sides penetrate through the holes in the connecting plate and are fixedly connected.

Furthermore, a plurality of through holes are further formed in the power output gear, and the through holes are wound on the rotating shaft of the power output gear.

Further, the power output gear is one, the output end gear of at least one idler gear in the plurality of idler gears is connected with one part of the gear surface of the power output gear, and the output end gear of the rest idler gears is connected with the other part of the gear surface of the power output gear;

or the power output gear is a plurality of gears connected side by side, the output end gear of at least one idler gear in the plurality of idler gears is connected with at least one of the power output gears, and the output end gear of the rest idler gears is connected with the rest power output gears.

Further, the multi-motor power assembly structure is used for mine excavation equipment or oil field drilling equipment.

Different from the prior art, the technical scheme realizes the resultant force output of the motors by the matching of the motors and the power output gear; specifically, a plurality of idlers wind around locating on power take off gear to with power take off gear meshing, drive the rotation of gear wheel in order to reach the purpose of power transmission through a plurality of pinions. The idler wheel is driven by a plurality of motors with the same rotating speed, so that the power output gear is driven to rotate; compare a free motor, the utility model discloses the cost of production, operation has been reduced by a wide margin.

Drawings

FIG. 1 is a structural view of a motor and a housing according to a second embodiment;

FIG. 2 is a gear structure diagram of the idler and the motor according to the second embodiment;

FIG. 3 is a structural view of the connecting plate according to the second embodiment;

FIG. 4 is a diagram of the structure of the motor and the housing according to one embodiment;

FIG. 5 illustrates an idler and motor gear arrangement according to one embodiment;

FIG. 6 is a diagram of the motor position relationship;

FIG. 7 is a diagram showing the relationship between the positions of the idler gear and the motor gear;

FIG. 8 is a view of the motor gear structure;

fig. 9 is a structure view of the power output gear, the idle gear, and the motor gear.

Description of reference numerals:

1. a power output gear; 2. an idler pulley; 3. a motor gear; 4. a motor; 5. a housing;

21. an input end gear; 22. an output end gear; 23. a connecting shaft; 51. a connecting plate.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1 to 9, a multi-motor power assembly structure of the present embodiment includes: a power output gear 1, a plurality of idle gears 2, a plurality of motor gears 3, a plurality of motors 4 and a shell 5; the power output gear 1, the idle gear 2 and the motor gear 3 are arranged in the shell 5, the power output gear 1, the idle gear 2 and the motor gear 3 are rotatably arranged on the shell 5, and an output shaft of each motor 4 penetrates through the shell 5 and is connected with one motor gear 3; a plurality of motor gears 3 are wound on one side of the power output gear 1, please refer to fig. 6 to 7; the idler 2 comprises: the gear transmission mechanism comprises an input end gear 21, an output end gear 22 and a connecting shaft 23, wherein the input end gear 21 and the output end gear 22 are connected through the connecting shaft 23 and transmit. It should be noted that the connecting shaft 23 may be located in the middle of the input end gear 21 and the output end gear 22, or located on one side of the input end gear 21 and the output end gear 22, that is, after the input end gear 21 and the output end gear 22 are connected, the input end gear 21 and the output end gear 22 are connected to the housing 5 by the connecting shaft 23; the input end gear 21 of each idle gear 2 is connected with one motor gear 3, and the output end gear 22 of each idle gear 2 is meshed with the power output gear 1; the number of teeth of the output end gear 22 is smaller than that of the power output gear 1, and a speed reduction effect is achieved. In order to output the resultant power, in the present embodiment, the plurality of motors 4 are electrically connected to a plurality of identical controllers, and the motors 4 are controlled by the controllers in a coordinated manner, so that the powers output by the plurality of motors 4 during actual operation are substantially identical and act on the power output gear 1 together.

Further, the mutual meshing of the idle wheels 2 and the motor gears 3 enables the motive power output by the motors 4 to uniformly act on the power output gear 1, and the condition of uneven output caused by the fact that a single motor 4 is too fast is avoided. Idler 2 is in the utility model discloses in play the effect of transmission power, preferably idler 2 is the speed reduction idler, and the radius of input gear is greater than the output gear for the motor can adopt high-speed motor, and then amplifies the moment of torsion by idler 2. In some embodiments, the motor may be a speed reduction motor or the like, and the motor may be directly connected to the output gear of the idler gear, that is, the output gear serves as the motor gear. In this embodiment, a plurality of idle gears 2 and a plurality of motor gears 3 form a circle, and the idle gears 2 are driven to rotate by the power provided by the motor gears 3, so that the power output gear 1 has power on one circle of the periphery. The technical scheme realizes power output through the matching of the plurality of motors 4 and the power output gear 1; specifically, a plurality of idlers 2 are around locating on power take off gear 1 to with the meshing of power take off gear 1, simultaneously output gear 22 number of teeth is less than the number of teeth of power take off gear 1, the number of teeth of input gear 21 is greater than motor gear 3, and motor gear 3 also plays the deceleration with input gear 21. The purpose of power output is achieved by driving the bull gear to rotate through the plurality of pinion gears. The idle wheel 2 of the present application is driven by a plurality of motors 4 with the same rotating speed, so as to drive the power output gear 1 to rotate; compare a single motor, the utility model discloses reduce the volume of motor, reduced the degree of difficulty and the cost of motor design and production. Meanwhile, the motor can adopt the existing mature small motor, the single large motor does not need to be designed independently, and the problems of reliability and risk caused by redesign are reduced.

Of course, in some embodiments, in the case of one power output gear 1, a connecting plate 51 is provided in the housing 5, and the connecting plate 51 is connected to the housing 5; the other side of the power output gear 1 is also provided with a plurality of motor gears 3, a plurality of motors 4 and a plurality of idle gears 2, and the relative positions of the motor gears 3, the motors 4 and the idle gears 2 on the two sides are the same; one end of each of the motor gear 3 and the idler gear 2 on two sides can be rotatably arranged on the shell 5, and the other end can be rotatably arranged on the connecting plate 51; the output end gears 22 of the idle gears 2 on both sides are meshed with the power output gear 1. The arrangement of the motor 4, the idler wheel 2 and the motor gear 3 on the two sides can reduce the load born by each of the motor 4, the idler wheel 2 and the motor gear 3 during starting and rotating, thereby prolonging the service life of the equipment.

In order to reduce the load of the idle gear 2 and the motor gear 3, please refer to fig. 4 to 5, in the first embodiment, a plurality of power output gears 1 are provided, the power output gears 1 are connected through a spline shaft on a middle shaft, and the power output gear 1 is sleeved on the spline shaft; it should be noted that, in this application, a plurality of through spline shaft connection power take off gear 1 is synchronous pivoted, and is a plurality of power take off gear 1 is relatively fixed when rotating with the spline shaft, and every power take off gear 1's size, shape, number of teeth all equal. The idle wheels 2 are divided into a plurality of groups, and the distances from the input end gear 21 to the output end gear 22 of the idle wheels 2 in each group are the same; a plurality of idle gears 2 in each group are meshed with the same power output gear 1. In the present embodiment, the idle gears 2 are divided into a plurality of sets, and the shape, size, and number of teeth of the idle gears 2 in each set are the same. In this embodiment, if there are three power output gears 1, that is, the idle gears 2 are three groups, and three groups of idle gears 2 are respectively engaged with one power output gear 1, and power is provided to each power output gear 1 through the motor gear 3 and the motor 4. It should be noted that each idler gear 2 in each set of idler gears 2 may be connected to the same motor gear 3, or may be connected to different motor gears 3; while each idler wheel 2 in each set of idler wheels 2 may be spaced from the other sets of idler wheels 2 or may be arranged in series. The arrangement of the plurality of power output gears 1 enables each idle gear 2 to rotate only one motor gear 3 meshed with the idle gear 2, and the load of each idle gear 2 and the motor gear 3 during rotation is greatly reduced.

In order to further improve the rotating efficiency and reduce the load of the idle gear 2, referring to fig. 1 to 3 and 8, in the second embodiment, a plurality of motors 4, motor gears 3 and idle gears 2 are respectively disposed on two sides of a plurality of power output gears 1, and each power output gear 1 is engaged with the output gear 22 of the idle gear 2; a connecting plate 51 is arranged in the shell 5, and the connecting plate 51 is connected with the shell 5; the power output gears 1 are even, the power output gears 1 are connected through a spline shaft on the middle shaft, and the power output gears 1 are sleeved on the spline shaft; the other side of the power output gears 1 is also provided with a plurality of motor gears 3, a plurality of motors 4 and a plurality of idle gears 2, and the relative positions of the motor gears 3, the motors 4 and the idle gears 2 on the two sides are the same; one end of each of the motor gear 3 and the idler gear 2 on two sides can be rotatably arranged on the shell 5, and the other end can be rotatably arranged on the connecting plate 51; the idle wheels 2 on one side are divided into a plurality of groups, and the distances from the input end gear 21 to the output end gear 22 of the idle wheels 2 in each group are the same; the number of the idle gears 2 is the same as half of the number of the power output gears 1; a plurality of idle gears 2 in each group are meshed with the same power output gear 1. Of course, the idler wheels 2 on both sides may also be connected to each other, and it should be noted that the connecting plate 51 is provided with a plurality of holes, and the connecting shafts 23 of the idler wheels 2 on both sides pass through the holes on the connecting plate 51 and are fixedly connected; of course, it is also possible to directly connect the two opposite output gears 22, and the two idler gears 2 connected to each other will make the power output on both sides approximately the same. The arrangement of the connecting plate 51 provides a supporting position for the motor 4 and the motor gear 3 on two sides; specifically, when only one side has the motor 4, the motor gear 3 is sleeved on the output shaft of the motor 4, one end of the output shaft of the motor 4 is rotatably arranged on one side of the shell 5, and the other end is also rotatably arranged on the shell 5 on the other side. However, when the motors 4 are disposed on both sides, the ends of the output shafts of the motors 4 on both sides, which are far away from the body of the motor 4, need to be rotatably disposed on the connecting plate 51, so that the motors 4 can stably output power. The number of the power output gears 1 may be even or odd, and is preferably even in the present embodiment. An even number of the power output gears 1 facilitates the arrangement of the motors 4 on two sides, in the embodiment, the motors 4 on two sides respectively provide power for half of the power output gears 1, the positions and the shapes of the idle gears 2 on two sides are the same, and meanwhile, the motors 4 are also electrically connected with the controller. Of course, in some embodiments, the number of the power output gears 1 may be an odd number, that is, one or more idle gears 2 on one side need to be meshed with one power output gear 1 separately, and in the state of the odd number of the power output gears 1, each power output gear 1 needs to be meshed with one or more idle gears. In the present embodiment, it is preferable that the number of the power output gears 1 is four, the number of the idle gears 2 is six, the number of the motor gears 3 is six, and the number of the motors 4 is six. Through the arrangement of the idle wheels 2 and the motor gears 3 on the two sides, the idle wheels 2 and the motor gears 3 on the two sides share the resistance of the power output gear 1 during starting and rotating, the rotating efficiency is improved, and meanwhile, the load of the idle wheels 2 is reduced.

In order to further improve the rotating efficiency and reduce the loads of the idle gear 2, the motor gear 3 and the motor 4, the power output gear 1 is further provided with a plurality of through holes which are wound on the rotating shaft of the power output gear 1. The provision of a plurality of through holes will reduce the weight of the power take-off gear 1 to improve the efficiency of rotation, while reducing the load on the idler gear 2, the motor gear 3, the motor 4.

In order to reduce the surface wear between the idler gear and the power output gear, the contact area between the output-side gear 22 of the idler gear 2 and the power output gear 1 can be reduced on the premise that the power transmission is satisfied. Specifically, the power output gear 1 includes both cases of being a single gear or being a plurality of gears connected side by side. When the power output gear 1 is a single gear, the output gear of at least one of the plurality of idler gears is connected to a portion of the gear surface of the power output gear, and the output gear of the remaining idler gears is connected to another portion of the gear surface of the power output gear. As shown in fig. 5, the output gear 22 is a shaft crossing the surface of the power output gear 1, but the portion on which the teeth are formed and which contacts the power output gear 1 is only a portion of the power output gear 1, and as shown in fig. 5, the portion on which one output gear 22 is formed may be the left 25% and the right 25% of the width of the power output gear 1, and the portion on which the other output gear 22 is formed may be the middle 50% of the width of the power output gear 1, and the number of output gears 22 in the two different cases may be half of the total number of output gears 22, respectively. And can be arranged at intervals to ensure the stress balance.

In the case where the power output gear 1 is a plurality of gears connected side by side, as shown in fig. 3 and 5, the power output gear is 4 identical gears connected side by side. Fig. 5 shows a schematic view in half, containing 2 side-by-side gears, the remaining half being left-right symmetrical to the illustration. The output gear of at least one idler gear in the plurality of idler gears is connected with at least one of the power output gears, and the output gear of the rest idler gears is connected with the rest power output gear. As shown in fig. 5, the toothed portion of one output gear 22 may be connected to only the leftmost one and the rightmost one of the four power output gears 1, and the toothed portions of the other output gears 22 may be two in the middle of the four power output gears 1, and the number of the output gears 22 in these two different cases may be half of the total number of the output gears 22, respectively. And can be arranged at intervals to ensure the stress balance.

The power assembly structure of all the above embodiments can be used in any place where large power is needed, for example, the multi-motor power assembly structure is used in mine excavation equipment or oil field drilling equipment.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the scope of the present invention.

Claims (10)

1. A multi-motor power assembly structure, comprising: the power output gear, a plurality of idle gears, a plurality of motor gears, a plurality of motors and the shell;

the power output gear, the idle gear and the motor gears are arranged in the shell, each motor is arranged outside the shell, rotating shafts of the motors penetrate through one side of the shell and are respectively connected with one motor gear, and the motors are used for driving the motor gears to rotate;

the motor gears are wound on one side of the power output gear; the idler comprises: the gear transmission mechanism comprises an input end gear, an output end gear and a connecting shaft, wherein the input end gear and the output end gear are connected through the connecting shaft; the input end gear of each idle gear is meshed with one motor gear, the output end gear of each idle gear is meshed with the power output gear, and the middle of the power output gear is used for outputting power.

2. The multi-motor power assembly structure according to claim 1, wherein the number of the power output gears is plural, the plural power output gears are connected by a spline shaft on a middle shaft, and the power output gears are sleeved on the spline shaft.

3. The multi-motor power assembly structure of claim 1, wherein a connecting plate is provided in the housing and connected to the housing; the power output gears are connected through a spline shaft on the middle shaft, and the power output gears are sleeved on the spline shaft;

a plurality of motor gears, a plurality of motors and a plurality of idle wheels are further arranged on the other sides of the plurality of power output gears, one ends of the idle wheels on two sides are arranged on the shell, and the other ends of the idle wheels on two sides are arranged on the connecting plate; one side of a rotating shaft of the motor penetrates through the shell, and the other side of the rotating shaft of the motor is rotatably arranged on the connecting plate; and each power output gear is meshed with the output end gear of the idle gear.

4. A multi-motor power assembly structure according to claim 3, wherein said power output gear is even;

the relative positions of the motor gears, the motors and the idle wheels on the two sides are the same; the idle wheels on one side are divided into a plurality of groups, and the distances from the input end gears to the output end gears of the idle wheels in each group are the same; the number of the groups of the idle gears is the same as half of the number of the power output gears; a plurality of said idler gears in each set are in mesh with the same power take off gear.

5. A multi-motor power assembly structure according to claim 4, wherein the number of power output gears is four, the number of idler gears is six, the number of motor gears is six, and the number of motors is six.

6. The multi-motor power assembly structure of claim 1, wherein a connecting plate is provided in the housing and connected to the housing;

the other side of the power output gear is also provided with a plurality of motor gears, a plurality of motors and a plurality of idle wheels, and the motor gears, the motors and the idle wheels on the two sides are in the same relative position; one end of the motor gear and the idle wheel on two sides is arranged on the shell, and the other end of the motor gear and the idle wheel is arranged on the connecting plate; the output end gears of the idle gears on two sides are meshed with the power output gear.

7. A multi-motor power assembly structure according to claim 3 or 6 wherein the connecting plate is provided with a plurality of holes and the idlers on both sides pass through the holes in the connecting plate and are fixedly connected.

8. A multi-motor power assembly structure according to any one of claims 1 to 6, wherein a plurality of through holes are further provided in the power output gear, and the through holes are provided around the rotation shaft of the power output gear.

9. The multi-motor power assembly structure according to claim 1, wherein the power output gear is one, the output side gear of at least one of the plurality of idle gears is connected to a portion of the gear surface of the power output gear, and the output side gear of the remaining idle gears is connected to another portion of the gear surface of the power output gear;

or the power output gear is a plurality of gears connected side by side, the output end gear of at least one idler gear in the plurality of idler gears is connected with at least one of the power output gears, and the output end gear of the rest idler gears is connected with the rest power output gears.

10. The multi-motor power assembly structure of claim 1, wherein the multi-motor power assembly structure is used on mining equipment or oilfield drilling equipment.

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