Engineering machinery double-high-speed motor input new energy reduction gearbox

Abstract

An engineering machinery double-high-speed motor input new energy reduction gearbox comprises a box body, a first input shaft assembly, a second input shaft assembly, an intermediate shaft assembly and an output shaft assembly are installed in the box body, the first input shaft assembly and the second input shaft assembly are meshed with an intermediate shaft at the same time to input power, and the intermediate shaft assembly is meshed with the output shaft assembly to output power; the two motors are respectively connected with the first input shaft assembly and the second input shaft assembly; when a high vehicle speed requirement is met, single-motor input is adopted, power meets the whole vehicle speed requirement through a high-speed path (small speed ratio), when a high traction force requirement is met, double-motor simultaneous input meets the whole vehicle traction force requirement, and when the high-speed motor is adopted as input, the whole vehicle speed requirement and the traction force requirement can be considered at the same time; the other motor can be reversely dragged under the condition that the motor is powered on, the requirement for the maximum traction force of the vehicle can be met, and the requirement for the maximum vehicle speed can also be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator technical field more specifically, it is a kind of engineering machinery double high-speed motor input new energy reduction gearbox. BACKGROUND

[0002] New energy products are popular and rapidly developed in China, and new energy products such as new energy loaders, new energy bulldozers and new energy graders have appeared in the engineering machinery industry. These engineering machinery products are all powered by motors.

[0003] Among them, the high-speed (low-torque) motor has a great advantage in price over the low-speed (high-torque) motor. Therefore, it has become a trend to use high-speed (low-torque) motors to match reduction boxes to achieve speed reduction and torque increase, and to provide power for engineering machinery vehicles.

[0004] At present, most new energy reduction boxes at home and abroad are single-input reduction boxes or double-input single-speed reduction boxes. Because the speed ratio is fixed, it cannot meet the demand for maximum traction and maximum speed of the vehicle at the same time. SUMMARY

[0005] To solve the above technical problems, the utility model provides an engineering machinery double high-speed motor input new energy reduction gearbox, which comprises a box body, a first input shaft assembly, a second input shaft assembly, an intermediate shaft assembly and an output shaft assembly are installed inside the box body, the first input shaft assembly and the second input shaft assembly simultaneously mesh with the intermediate shaft to input power, and the intermediate shaft assembly meshes with the output shaft assembly to output power.

[0006] According to an embodiment of the utility model, the two motors are respectively connected with the first input shaft assembly and the second input shaft assembly.

[0007] According to an embodiment of the utility model, the first input shaft assembly comprises a first input gear shaft, both ends of the first input gear shaft are rotatably connected with deep groove ball bearings, and the deep groove ball bearings are connected with the box body.

[0008] According to an embodiment of the utility model, the second input shaft assembly comprises a second input gear shaft, both ends of the second input gear shaft are rotatably connected with deep groove ball bearings, and the deep groove ball bearings are connected with the box body.

[0009] According to an embodiment of the utility model, the intermediate shaft assembly comprises an intermediate shaft, an intermediate shaft large gear and an intermediate shaft small gear are connected with the intermediate shaft through spline, both ends of the intermediate shaft are rotatably connected with intermediate shaft tapered roller bearings, and the intermediate shaft tapered roller bearings are connected with the box body;

[0010] The gears on the first input gear shaft and the second input gear shaft are all meshed with the intermediate shaft large gear.

[0011] According to an embodiment of the utility model, output shaft assembly includes output shaft, is connected with output gear on output shaft through the spline, output gear is engaged with intermediate shaft pinion,

[0012] The position of output shaft on both sides of output gear is provided with output shaft tapered roller bearing, and is connected with box through output shaft tapered roller bearing.

[0013] According to an embodiment of the utility model, the front and rear ends of output shaft are connected with front output flange and rear output flange respectively.

[0014] The utility model has the advantages of:

[0015] When high speed requirement, single motor input, power is satisfied whole machine speed demand through high speed path (small speed ratio), when high traction requirement, double motor input satisfies whole vehicle traction demand, uses high speed motor as input can simultaneously give consideration to whole vehicle speed and traction demand, single motor input, motor upper electricity condition can drag another motor, can satisfy vehicle maximum traction demand, can satisfy highest speed requirement. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is structure schematic diagram of the utility model;

[0017] Figure 2 It is big arm chien structure schematic of the utility model Figure 1 ;

[0018] In the drawing, 1, intermediate shaft gear, 2, first intermediate shaft tapered roller bearing, 3, oil seal seat, 4, first gasket, 5, first lock nut, 6, rear output flange, 7, first output shaft tapered roller bearing, 8, second output shaft tapered roller bearing, 9, front output flange, 10, second gasket, 11, second lock nut, 12, output shaft, 13, output gear, 14, second intermediate shaft tapered roller bearing, 15, intermediate shaft, 16, intermediate shaft pinion, 17, box, 18, first input gear shaft, 19, second input gear shaft, 20, deep groove ball bearing. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantage of the utility model implementation more clearly, below will combine the drawing of the utility model of the utility model, Figure 1 ~attached Figure 2 , more detailed description of the utility model is carried out.

[0020] The utility model provides a utility model provides an engineering machinery double high -speed motor input new energy reduction gear box, including box 17, the inside installation of box 17 has first input shaft assembly, second input shaft assembly, intermediate shaft 15 assembly and output shaft 12 assembly, first input shaft assembly and second input shaft assembly are engaged with intermediate shaft 15 input power simultaneously, and intermediate shaft 15 assembly is engaged with output shaft 12 assembly and exports power, still including two motors, two motors are connected with first input shaft assembly and second input shaft assembly respectively, first input shaft assembly includes first input gear shaft 18, both ends of first input gear shaft 18 are rotatably connected with deep groove ball bearing 20, and are connected with box 17 through deep groove ball bearing 20, second input shaft assembly includes second input gear shaft 19, both ends of second input gear shaft 19 are rotatably connected with deep groove ball bearing 20, and are connected with box 17 through deep groove ball bearing 20, intermediate shaft 15 assembly includes intermediate shaft 15, and the spline connection of intermediate shaft 15 has intermediate shaft big gear 1 and intermediate shaft pinion 16, both ends of intermediate shaft 15 are rotatably connected with intermediate shaft 15 tapered roller bearing, and are connected with box 17 through intermediate shaft 15 tapered roller bearing, the gear on first input gear shaft 18 and second input gear shaft 19 is engaged with intermediate shaft big gear 1, output shaft 12 assembly includes output shaft 12, and the spline connection of output shaft 12 has output gear 13, and output gear 13 is engaged with intermediate shaft pinion 16, and the position of output shaft 12 is provided with output shaft 12 tapered roller bearing on the both sides of output gear 13, and is connected with box 17 through output shaft 12 tapered roller bearing, and the front and rear ends of output shaft 12 are connected with front output flange 9 and rear output flange 6 respectively.

[0021] The embodiment one of the utility model is as follows:

[0022] An engineering machinery double high -speed motor input new energy reduction gear box, including box 17, the inside installation of box 17 has first input shaft assembly, second input shaft assembly, intermediate shaft assembly and output shaft assembly, two motors are connected with first input shaft assembly and second input shaft assembly respectively, first input shaft assembly and second input shaft assembly are engaged with intermediate shaft 15 input power simultaneously, and intermediate shaft assembly is engaged with output shaft assembly and exports power, in different situations, select different power output mode, when high vehicle speed demand, single motor input, power is satisfied whole machine vehicle speed demand through high -speed path (small speed ratio), the motor is under power and can drag another motor, when high traction demand, double motor input satisfies whole vehicle traction demand simultaneously, when using high -speed motor as input, the vehicle speed and traction demand can be considered simultaneously.

[0023] The first input shaft assembly comprises a first input gear shaft 18, both ends of the first input gear shaft 18 are rotatably connected with deep groove ball bearings 20, and are connected with the box body 17 through the deep groove ball bearings 20, the second input shaft assembly comprises a second input gear shaft 19, both ends of the second input gear shaft 19 are rotatably connected with deep groove ball bearings 20, and are connected with the box body 17 through the deep groove ball bearings 20, and one end of the first input gear shaft 18 and the second input gear shaft 19 extending out of the box body 17 is connected with two motors.

[0024] The intermediate shaft assembly comprises an intermediate shaft 15, the intermediate shaft 15 is connected with an intermediate shaft large gear and an intermediate shaft small gear 16 through spline connection, both ends of the intermediate shaft 15 are rotatably connected with a first intermediate shaft tapered roller bearing 2 and a second intermediate shaft tapered roller bearing 14, and are connected with the box body 17 through the first intermediate shaft tapered roller bearing 2 and the second intermediate shaft tapered roller bearing 14; the gears on the first input gear shaft 18 and the second input gear shaft 19 are engaged with the intermediate shaft large gear 1, the output shaft 12 assembly comprises an output shaft 12, the output shaft 12 is connected with an output gear 13 through spline connection, the output gear 13 is engaged with the intermediate shaft small gear 16, the front and rear ends of the intermediate shaft 15 are respectively connected with a front output flange 9 and a rear output flange 6, when high vehicle speed demand, the high-speed motor drives the first input shaft assembly, drives the intermediate shaft large gear 1 through the first input gear shaft 18, the intermediate shaft large gear 1 is connected with the intermediate shaft 15 through spline connection, the intermediate shaft small gear 16 is connected with the intermediate shaft 15 through spline connection, the power is transmitted from the intermediate shaft large gear 1 to the intermediate shaft small gear 16, the intermediate shaft small gear 16 drives the output gear 13, the output gear 13 is connected with the output shaft 12 through spline connection, and the power is output to the front output flange 9 and the rear output flange 6.

[0025] When high traction demand, the high-speed motor drives the first input shaft assembly and the second input shaft assembly, drives the intermediate shaft large gear 1 through the first input gear shaft 18 and the second input gear shaft 19, the intermediate shaft large gear 1 is connected with the intermediate shaft 15 through spline connection, the intermediate shaft small gear 16 is connected with the intermediate shaft 15 through spline connection, the power is transmitted from the intermediate shaft large gear 1 to the intermediate shaft small gear 16, the intermediate shaft small gear 16 drives the output gear 13, the output gear 13 is connected with the output shaft 12 through spline connection, and the power is output to the front output flange 9 and the rear output flange 6.

[0026] The double high-speed motor input new energy reduction gearbox has two speed ratios, which can meet the maximum traction demand of the vehicle and the highest speed demand.

[0027] The first output shaft conical roller bearing 7 and the second output shaft conical roller bearing 8 are arranged on the output shaft 12 at positions on both sides of the output gear 13, and are connected with the box 17 through the first output shaft conical roller bearing 7 and the second output shaft conical roller bearing 8, and the oil seal seat 3 is further arranged outside the first output shaft conical roller bearing 7 and the second output shaft conical roller bearing 8 to play a protection role, the output shaft 12 is connected with the rear output flange 6 through the first gasket 4 and the first locking nut 5, and is connected with the front output flange 9 through the second gasket 10 and the second locking nut 11.

[0028] It should be noted that the terms "first", "second", and "third" in the present application are only used for descriptive purposes and do not indicate any order or relative importance, and should not be interpreted as indicating or implying relative importance. These terms can be interpreted as names.

[0029] Those skilled in the art should understand that the embodiments of the present application shown in the above description and the accompanying drawings are only examples and do not limit the present application. The advantages of the present application have been fully and effectively realized. The function and structural principle of the present application have been shown and described in the embodiments, and the implementation of the present application can be any modification or modification without departing from the principle.

[0030] The following description is used to disclose the present application so that those skilled in the art can implement the present application. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious modifications. The basic principles of the present application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.

[0031] Those skilled in the art should understand that in the disclosure of the specification, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the above terms cannot be understood as a limitation of the present application.

[0032] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

Claims

1. A new energy reduction gearbox for a dual high-speed motor input for an engineering machine, characterized by: The utility model provides a gearbox, including box, first input shaft assembly, second input shaft assembly, intermediate shaft assembly and output shaft assembly are installed inside the box, first input shaft assembly and second input shaft assembly are simultaneously with intermediate shaft engagement input power, intermediate shaft assembly is with output shaft assembly engagement output power, second input shaft assembly includes second input gear shaft, both ends of second input gear shaft rotatably connect with deep groove ball bearing and are connected with the box through deep groove ball bearing, intermediate shaft assembly includes intermediate shaft, and the intermediate shaft is connected with intermediate shaft big gear and intermediate shaft small gear through the spline, both ends of intermediate shaft rotatably connect with intermediate shaft tapered roller bearing and are connected with the box through intermediate shaft tapered roller bearing, First input shaft assembly includes first input gear shaft, and the gear on first input gear shaft and second input gear shaft all is engaged with intermediate shaft big gear.

2. The dual high-speed motor input new energy reduction gearbox for construction machinery according to claim 1, characterized in that: Still include two motor, two the motor is connected with first input shaft assembly and second input shaft assembly respectively.

3. The dual high-speed motor input new energy reduction gearbox for construction machinery according to claim 1, characterized in that: Both ends of first input gear shaft rotatably connect with deep groove ball bearing and are connected with the box through deep groove ball bearing.

4. The dual high speed motor input new energy reduction gearbox for construction machinery according to claim 1, characterized in that: Output shaft assembly includes output shaft, and the output gear is connected with intermediate shaft small gear through the spline on the output shaft, The output shaft is provided with output shaft tapered roller bearing on the both sides of output gear position and is connected with the box through output shaft tapered roller bearing.

5. The dual high-speed motor input new energy reduction gearbox of the engineering machinery according to claim 4, characterized in that: The front and rear ends of the output shaft are respectively connected with the front output flange and the rear output flange.

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