CN221075115U - Dual-motor input gearbox of electric loader - Google Patents

Abstract

The utility model provides a double-motor input gearbox of an electric loader, which comprises a box body, wherein a sun gear, a planetary gear train, an idler gear, a forward gear and a backward gear are arranged in the box body; the sun gear is arranged on the input shaft, and both ends of the input shaft are connected with a motor positioned at the outer side of the box body; the planetary gear of the planetary gear train is meshed with the sun gear and is meshed with the inner gear ring in the box body, the planetary gear is connected with the planetary output wheels through the planetary carrier, one planetary output wheel is meshed with the forward gear through the idler wheel, and the other planetary output wheel is meshed with the backward gear; the forward gear is connected with the forward clutch, and the reverse gear is connected with the reverse clutch. This mode of two motor outputs increases the transmission ratio of gearbox, reduces the demand to installation space, reduce cost to through the mode that sets up forward gear and backing gear simultaneously make the motor need not to switch and can realize advancing or backing, thereby improve the life-span of motor use.

Description

Dual-motor input gearbox of electric loader

Technical Field

The utility model relates to the technical field of gearboxes, in particular to a double-motor input gearbox of an electric loader.

Background

The existing gearbox with double motor inputs is a fixed-shaft gearbox, has large structural size, but smaller transmission and no reverse gear. It is known that the large size of the gearbox requires a large installation space, and that such gearboxes are not installed in some small loaders. Furthermore, a small transmission of the gearbox requires a motor with low rotation speed and high torque, and the motor has a large size and high cost. In addition, the motor without the reverse gear realizes the reverse by changing the rotating speed direction of the motor, but in the actual operation process, the motor is easy to damage due to frequent switching of the rotating speed of the motor, and the reaction is slow.

Disclosure of utility model

In view of the foregoing, it is desirable to provide a dual-motor input gearbox for an electric loader that increases the gear ratio of the gearbox by way of dual-motor output, reduces the need for installation space, reduces costs, and allows the motor to achieve either forward or reverse without switching by way of simultaneously setting forward and reverse gears, thereby improving the life of the motor.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The double-motor input gearbox of the electric loader comprises a box body, wherein a sun gear, a planetary gear train, an idler gear, a forward gear and a reverse gear are arranged in the box body; the sun gear is arranged on the input shaft, the input shaft is rotatably arranged on the box body, two ends of the input shaft are positioned outside the box body, and the two ends of the input shaft are connected with a motor positioned outside the box body; the planetary gear train comprises planetary gears, a planetary carrier and planetary output gears, wherein the planetary gears are in meshed connection with a sun gear and in meshed connection with an inner gear ring in the box body, the planetary gears are connected with the planetary output gears through the planetary carrier, two planetary output gears are arranged, one planetary output gear is in meshed connection with a forward gear through the idler gears, and the other planetary output gear is in meshed connection with a reverse gear; the idler wheel is arranged on an idler wheel shaft, the idler wheel shaft is rotatably arranged on the box body, one end of the idler wheel shaft extends out of the box body and is connected with the variable speed pump outside the box body; the forward gear is connected with a forward clutch, the reverse gear is connected with a reverse clutch, the reverse gear and the forward gear are coaxially arranged on an output shaft, and the reverse clutch and the forward clutch are both connected with the output shaft; the output shaft is rotatably arranged on the box body, two ends of the output shaft are positioned on the outer side of the box body and provided with output flanges, and one end of the output shaft positioned on the outer side of the box body is also provided with a parking brake and a speed measuring gear.

Preferably, the input shaft, the idler shaft and the output shaft are all in rotary connection with the box body through bearings.

Preferably, the two planetary output wheels are arranged coaxially with the input shaft.

Preferably, the forward clutch is disposed between the forward gear and the reverse gear.

Preferably, the reverse clutch is disposed between the forward gear and the reverse gear.

Preferably, the parking brake and the tachometer gear are mounted between the output flange of the end thereof and the box body, and the parking brake is positioned between the tachometer gear and the output flange of the end thereof.

Compared with the prior art, the utility model has the following beneficial effects:

1. The gearbox is provided with two motors which are driven by double motors, so that the transmission ratio of the gearbox can be increased by using the motors with small volume and low cost, and the installation space is reduced and the cost is reduced.

2. According to the utility model, two planetary output gears are arranged in the planetary gear train, and one planetary output gear is indirectly connected with the output shaft through the idler gear, so that forward gears and backward gears can be controlled after the gearbox is provided with the two gear clutches, namely, through the arrangement, the forward or backward of the gearbox can be realized under the condition that the motor rotates in the same direction, the motor is not required to switch and turn, and the service life of the motor is prolonged.

3. The testing gear is arranged outside the gearbox, so that the device is convenient to install and observe.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic illustration of the forward clutch of the present utility model in operation with the transmission in forward gear;

FIG. 3 is a schematic representation of the reverse clutch of the present utility model in operation with the transmission in reverse.

Description of the main reference signs

In the figure: 1-input shaft, 2-bearing, 3-sun gear, 4-planet wheel, 5-planet wheel carrier, 6-idler wheel, 7-idler wheel shaft, 8-output flange, 9-parking brake, 10-speed measuring gear, 11-forward gear, 12-forward gear clutch, 13-backward gear clutch, 14-backward gear, 15-output shaft, 16-annular gear.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, in a preferred embodiment of the present utility model, a dual-motor input gearbox of an electric loader includes a housing in which a sun gear 3, a planetary gear train, an idler gear 6, a forward gear 11 and a reverse gear 14 are installed. The sun gear 3 is mounted on the input shaft 1, the input shaft 1 is rotatably mounted on the box body, two ends of the sun gear are positioned on the outer side of the box body, and the two ends are connected with a motor positioned on the outer side of the box body. The planetary gear train comprises a planetary wheel 4, a planetary wheel carrier 5 and a planetary output wheel, wherein the planetary wheel 4 is in meshed connection with the sun wheel 3 and in meshed connection with an inner gear ring 16 in the box body. The planetary wheels 4 are connected with planetary output wheels through a planetary wheel carrier 5, two planetary output wheels are arranged, one planetary output wheel is connected with a forward gear 11 in a meshing way through an idler wheel 6, and the other planetary output wheel is connected with a backward gear 14 in a meshing way. Idler 6 is mounted on idler shaft 7, idler shaft 7 is rotatably mounted on the housing, one end of which extends outside the housing and is connected to a variable speed pump outside the housing. The forward gear 11 is connected to the forward clutch 12, the reverse gear 14 is connected to the reverse clutch 13, the reverse gear 14 and the forward gear 11 are coaxially mounted on the output shaft 15, and the reverse clutch 13 and the forward clutch 12 are both connected to the output shaft 15. The output shaft 15 is rotatably mounted on the housing with both ends located outside the housing and mounted with output flanges 8.

In the utility model, the input shaft 1 is used as an input piece of the gearbox, and the motors arranged at the two ends of the input shaft 1 are used as double-power input, so that the gearbox can obtain a larger transmission ratio under the condition of adopting a low-cost and small-size motor, and the whole size of the gearbox can meet the requirement of power output under the condition of smaller size, thereby reducing the requirement of installation space and the cost. Secondly, through two planetary output gears that set up in the planetary gear train to and one of them planetary output gear passes through idler 6 indirect connection output shaft 15's mode for the output shaft 15 of gearbox can realize forward or reverse rotation under the control of two gear clutches (forward gear clutch 12 and reverse gear clutch 13), thereby realizes the forward and the reverse of gearbox, and the control of these two grades can be realized under the equidirectional pivoted condition of motor, has avoided the switching that the motor turned to, has improved the life of motor.

Further, in the present embodiment, the input shaft 1, the idler shaft 7, and the output shaft 15 are all rotatably connected to the casing via bearings 2. The two planetary output wheels are arranged coaxially with the input shaft 1. The forward clutch 12 is disposed between the forward gear 11 and the reverse gear 14. The reverse clutch 13 is provided between the forward gear 11 and the reverse gear 14. The output shaft 15 is located the one end of box outside and still installs parking brake 9 and tachometer gear 10, and parking brake 9 and tachometer gear 10 are installed between the output flange 8 and the box of its place end, and parking brake 9 is located between tachometer gear 10 and the output flange 8 of its place end.

When the utility model is used, the utility model is divided into two modes of forward and backward, and the working principle of the two modes is as follows:

(1) Advancing forward

Referring to fig. 2, the forward clutch 12 is engaged, the forward gear 11 is connected with the output shaft 15, the motor rotates to drive the input shaft 1 to rotate, the input shaft 1 rotates through the sun gear 3, the planet wheel 4, the planet wheel carrier 5 and the planet output gear, the reverse gear 14 meshed with the planet output gear is not connected with the output shaft 15 due to the reverse clutch 13, the reverse gear 14 is not driven to drive the output shaft 15 to rotate, and the planet output gear meshed with the idle gear 6 drives the forward gear 11 to drive the output shaft 15 to rotate forward through the idle gear 6, so that forward is realized.

(2) Back out

Referring to fig. 3, a reverse clutch 13 is engaged, a reverse gear is connected to an output shaft 15, a motor rotates to drive an input shaft 1 to rotate, the input shaft 1 rotates through a sun gear 3, a planet wheel 4, a planet wheel carrier 5 and a planet output gear, the planet output gear drives a forward gear 11 to rotate through an idler wheel 6, the forward gear 11 is not connected to the output shaft 15 due to the forward clutch 12, the forward gear 11 does not drive the output shaft 15 to rotate, and the other planet output gear drives a reverse gear 14 to rotate, and the reverse gear 14 drives the output shaft 15 to rotate reversely due to the reverse clutch 13 engaging the output shaft 15, so that reverse is realized.

The foregoing description is directed to the preferred embodiments of the present utility model, but the embodiments are not intended to limit the scope of the utility model, and all equivalent changes or modifications made under the technical spirit of the present utility model should be construed to fall within the scope of the present utility model.

Claims (6)

1. The utility model provides an electric loader's bi-motor input gearbox, includes box, its characterized in that: a sun gear, a planetary gear train, an idler gear, a forward gear and a backward gear are arranged in the box body; the sun gear is arranged on the input shaft, the input shaft is rotatably arranged on the box body, two ends of the input shaft are positioned outside the box body, and the two ends of the input shaft are connected with a motor positioned outside the box body; the planetary gear train comprises planetary gears, a planetary carrier and planetary output gears, wherein the planetary gears are in meshed connection with a sun gear and in meshed connection with an inner gear ring in the box body, the planetary gears are connected with the planetary output gears through the planetary carrier, two planetary output gears are arranged, one planetary output gear is in meshed connection with a forward gear through the idler gears, and the other planetary output gear is in meshed connection with a reverse gear; the idler wheel is arranged on an idler wheel shaft, the idler wheel shaft is rotatably arranged on the box body, one end of the idler wheel shaft extends out of the box body and is connected with the variable speed pump outside the box body; the forward gear is connected with a forward clutch, the reverse gear is connected with a reverse clutch, the reverse gear and the forward gear are coaxially arranged on an output shaft, and the reverse clutch and the forward clutch are both connected with the output shaft; the output shaft is rotatably arranged on the box body, two ends of the output shaft are positioned on the outer side of the box body and provided with output flanges, and one end of the output shaft positioned on the outer side of the box body is also provided with a parking brake and a speed measuring gear.

2. A dual motor input gearbox for an electric loader as recited in claim 1, wherein: the input shaft, the idler shaft and the output shaft are all in rotary connection with the box body through bearings.

3. A dual motor input gearbox for an electric loader as recited in claim 1, wherein: the two planetary output wheels are coaxially arranged with the input shaft.

4. A dual motor input gearbox for an electric loader as recited in claim 1, wherein: the forward clutch is disposed between the forward gear and the reverse gear.

5. A dual motor input gearbox for an electric loader as recited in claim 1, wherein: the reverse clutch is disposed between the forward gear and the reverse gear.

6. A dual motor input gearbox for an electric loader as recited in claim 1, wherein: the parking brake and the speed measuring gear are arranged between the output flange of the end where the parking brake and the speed measuring gear are arranged and the box body, and the parking brake is arranged between the speed measuring gear and the output flange of the end where the parking brake and the speed measuring gear are arranged.