阅读说明：本技术 手电两驱式变速箱 (Manual and electric driven gearbox ) 是由 渠聚鑫 孟利军 李鸿斌 姚良 姚春江 于 2021-08-25 设计创作，主要内容包括：本发明涉及变速箱领域,具体公开了一种手电两驱式变速箱,变速箱箱体内部的传动由四套传动副构成,从输入端到输出端分别为一级行星齿轮副、二级行星齿轮副、蜗轮蜗杆副、手摇输入组件。在变速箱两侧设计有手摇输入端口,手摇输入端口设置手摇杆,形成手摇驱动传动链；或手摇输入端口配置一台小功率大转速的电机,形成电驱动传动链；两路传动链经不同的传动路线分别将动力传到出力轴,各自独立,互为冗余。本发明结构形式紧凑、适用于需提供手摇驱动的设备使用,所需手摇输入扭矩小,可以实现手摇驱动在输出端的转速与电机驱动时基本相当,手摇功能操作灵活,不需要反复解锁或开合连接处,效率高。(The invention relates to the field of gearboxes, and particularly discloses a manual and electric two-drive gearbox. Hand input ports are designed on two sides of the gearbox, and hand rods are arranged on the hand input ports to form a hand driving transmission chain; or the hand-operated input port is provided with a motor with low power and high rotating speed to form an electric drive transmission chain; the two transmission chains respectively transmit power to the output shaft through different transmission routes, are independent and redundant with each other. The invention has compact structure, is suitable for equipment which needs to provide hand-operated drive, has small required hand-operated input torque, can realize that the rotating speed of the hand-operated drive at the output end is basically equivalent to that of the motor drive, has flexible hand-operated function operation, does not need repeated unlocking or opening and closing of the connection part, and has high efficiency.)

1. A manual and electric dual-drive gearbox comprises a front box body (2), a rear box body (7), a force output shaft (9) and hand input ports, and is characterized in that the hand input ports are designed on two sides of the gearbox; the transmission in the gearbox body consists of four sets of transmission pairs, and a primary planetary gear pair (3), a secondary planetary gear pair (4), a worm and gear pair (5) and a hand-operated input assembly (6) are respectively arranged from the input end to the output end;

the primary planetary gear pair (3) consists of a primary planetary gear pair sun gear (3.1), a primary planetary gear pair gear ring (3.2), a primary planetary gear pair planet gear (3.3) and a primary planetary gear pair planet carrier (3.4);

the secondary planetary gear pair (4) consists of a secondary planetary gear pair gear ring (4.1), a secondary planetary gear pair planet wheel (4.2), a secondary planetary gear pair sun wheel (4.3) and a secondary planetary gear pair planet carrier (4.4);

the worm wheel and worm pair (5) consists of a worm shaft (5.2) and a worm wheel (5.3);

the hand-operated input assembly (6) consists of a bearing seat (6.1), a hand-operated input end cover (6.2), a hand-operated input shaft (6.3) and a gland (6.4);

the sun gear (3.1) of the primary planetary gear pair is integrally designed, one side of the sun gear is provided with a shaft hole directly connected with the output shaft of the motor, and the sun gear (3.1) of the primary planetary gear pair is connected with the motor shaft through the shaft hole and keeps relatively fixed; the planet carrier (3.4) of the primary planetary gear pair is connected with the gear ring (4.1) of the secondary planetary gear pair through a bolt or a spline and keeps relatively fixed, so that the rotating speeds are consistent; the planet carrier (4.4) of the secondary planetary gear pair and the worm wheel (5.3) are designed into a whole, and are kept relatively fixed, so that the rotating speed is kept consistent;

the sun gear (4.3) of the secondary planetary gear pair and the output shaft (9) are designed into a whole to form a torque output component of the device.

2. A manual and electric two-drive gearbox according to claim 1, characterized in that the worm gear and worm pair (5) has a self-locking function, the worm is connected with the hand-operated port through a pair of spur gear pair driven wheels (5.1) and spur gear pair driving wheels (6.5), the hand-operated rotation speed can be adjusted and the structure size can be ensured.

3. The manual and electric two-drive gearbox according to claim 1, wherein the input end of the manual and electric two-drive gearbox is directly connected with the motor and does not pass through the first-stage planetary gear pair (3), and the reduction ratio of the first-stage planetary gear pair (3) is adjusted at the moment, so that the required torque and speed are obtained.

4. The manual-electric two-drive gearbox as claimed in claim 1, wherein a hand-operated input port is provided with a hand-operated rod to form a hand-operated drive transmission chain; or the hand-operated input port is provided with a motor with low power and high rotating speed to form an electric drive transmission chain; the two transmission chains respectively transmit power to the output shaft (9) through different transmission routes, are independent and redundant.

Technical Field

The invention belongs to the technical field of mechanical design, and particularly relates to a gearbox.

Background

At present, besides the function of electric control, many electrically controlled transmission mechanical devices also need to be added with a manual control function, so that when an electric control device fails, the devices can still work normally, and the reliability of the devices is improved. If the vehicle-mounted expansion shelter is pushed out and recovered, the vehicle-mounted expansion shelter can be recovered by hand when the electric transmission device cannot work normally; the lifting device can be lifted by hand in an emergency way under the condition of no electricity; and a erecting device with hand-cranking drive, etc. The realization of hand function has overcome in many current products can only use the shortcoming of electric power as the power supply, provides the means of normal work under the emergency state, however most hand function operation is not nimble enough now, need to unblock repeatedly or open and shut the junction, causes inefficiency or trouble frequently.

Disclosure of Invention

The invention provides a manual and electric two-drive gearbox which is compact in structural form, suitable for equipment needing to provide hand-cranking drive, small in required hand-cranking input torque, capable of achieving that the rotating speed of the hand-cranking drive at the output end is basically equivalent to that of the motor drive, flexible in hand-cranking function operation, free of repeated unlocking or opening and closing of a connection part and high in efficiency.

The invention has the technical scheme that the manual-electric two-drive gearbox comprises a front box body, a rear box body, a force output shaft and a hand-operated input port, and is characterized in that the transmission in the gearbox body consists of four sets of transmission pairs, and a primary planetary gear pair, a secondary planetary gear pair, a worm gear pair and a hand-operated input assembly are respectively arranged from the input end to the output end;

the first-stage planetary gear pair consists of a first-stage planetary gear pair sun gear, a first-stage planetary gear pair gear ring, a first-stage planetary gear pair planet gear and a first-stage planetary gear pair planet carrier;

the secondary planetary gear pair consists of a secondary planetary gear pair gear ring, a secondary planetary gear pair planet gear, a secondary planetary gear pair sun gear and a secondary planetary gear pair planet carrier;

the worm wheel and worm pair consists of a worm shaft and a worm wheel;

the hand-operated input assembly consists of a bearing seat, a hand-operated input end cover, a hand-operated input shaft and a gland;

the sun gear of the primary planetary gear pair is integrally designed, one side of the sun gear is provided with a shaft hole directly connected with the output shaft of the motor, and the sun gear of the primary planetary gear pair is connected with the motor shaft through the shaft hole and is relatively fixed; the planet carrier of the primary planetary gear pair and the secondary planetary gear pair gear ring are connected through bolts or splines to be kept relatively fixed, so that the rotating speeds are consistent; the planet carrier of the secondary planetary gear pair and the worm gear are designed into a whole, and are kept relatively fixed, so that the rotating speeds are kept consistent;

the sun gear and the output shaft of the secondary planetary gear pair are designed into a whole to form a torque output part of the device.

Furthermore, the worm gear and worm pair has a self-locking function, the worm is connected with the hand-operated port through a pair of straight gear pair driven wheels and a straight gear pair driving wheel, the hand-operated rotating speed is adjusted, and the structural size is ensured.

Further, flashlight two drive formula gearbox input lug connection motors, not through one-level planetary gear pair, the reduction ratio of adjustment one-level planetary gear pair this moment to obtain the moment of torsion and the speed that satisfy the demand.

Furthermore, a hand-cranking input port is provided with a hand-cranking rod to form a hand-cranking driving transmission chain; or the hand-operated input port is provided with a motor with low power and high rotating speed to meet the operation requirement, and an electric drive transmission chain is formed; the two transmission chains respectively transmit power to the output shaft through different transmission routes, are independent and redundant with each other.

The invention has the following beneficial effects:

1. the structure form is compact, the device is suitable for equipment which needs to provide hand-operated drive, the required hand-operated input torque is small, and the rotating speed of the hand-operated drive at the output end is basically equivalent to that of the motor drive;

2. the motor has wide application range, can be configured with motors with different parameter models, and meets different requirements.

3. The work is reliable, and the hand interface can change the form according to different demands.

4. Hand-operated input interfaces are designed on two sides of the gearbox, so that the gearbox is suitable for different installation environments.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive step.

FIG. 1 is a diagram of a manual and electric drive type transmission;

FIG. 2 is a schematic diagram of a manual-electric two-drive transmission;

FIG. 3 is an exterior view of the present invention assembled with a motor reducer;

FIG. 4 is a structure view of the integration of the worm gear and the planet carrier of the secondary planetary gear pair;

FIG. 5 is a mounting structure view of a hand-operated input speed-increasing spur gear;

FIG. 6 is a schematic diagram of the present invention showing a two-drive manual transmission directly coupled to a motor;

the names of the components in the figure are: the device comprises an input end flange end cover 1, a front box body 2, a primary planetary gear pair 3, a secondary planetary gear pair 4, a worm gear pair 5, a hand-operated input assembly 6, a rear box body 7, an output end flange end cover 8, an output shaft 9, a primary planetary gear pair sun gear 3.1, a primary planetary gear pair gear ring 3.2, a primary planetary gear pair planet gear 3.3, a primary planetary gear pair planet carrier 3.4, a secondary planetary gear pair gear ring 4.1, a secondary planetary gear pair planet gear 4.2, a secondary planetary gear pair sun gear 4.3, a secondary planetary gear pair planet carrier 4.4, a straight gear pair driven wheel 5.1, a worm shaft 5.2, a worm gear 5.3, a bearing seat 6.1, a hand-operated input end cover 6.2, a hand-operated input shaft 6.3, a gland 6.4, a straight gear pair driving wheel 6.5, a motor 10, a planetary reducer 11 and a hand-electric double-drive gearbox 12.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples of the present invention without any inventive step, are within the scope of the present invention.

As shown in fig. 1, a manual-electric two-drive type transmission comprises a front box body 2, a rear box body 7, an output shaft 9 and a hand-operated input port, and is characterized in that the transmission in the transmission box body is composed of four sets of transmission pairs, and a primary planetary gear pair 3, a secondary planetary gear pair 4, a worm gear pair 5 and a hand-operated input assembly 6 are respectively arranged from the input end to the output end;

the primary planetary gear pair 3 consists of a primary planetary gear pair sun gear 3.1, a primary planetary gear pair gear ring 3.2, a primary planetary gear pair planet gear 3.3 and a primary planetary gear pair planet carrier 3.4;

the secondary planetary gear pair 4 consists of a secondary planetary gear pair gear ring 4.1, a secondary planetary gear pair planet wheel 4.2, a secondary planetary gear pair sun gear 4.3 and a secondary planetary gear pair planet carrier 4.4;

the worm-gear pair 5 consists of a worm shaft 5.2 and a worm wheel 5.3;

the hand-operated input assembly 6 consists of a bearing seat 6.1, a hand-operated input end cover 6.2, a hand-operated input shaft 6.3 and a gland 6.4;

the sun gear 3.1 of the primary planetary gear pair adopts an integrated design, one side of the sun gear is provided with a shaft hole directly connected with the output shaft of the motor, and the sun gear 3.1 of the primary planetary gear pair is connected with the motor shaft through the shaft hole and is relatively fixed; the planet carrier 3.4 of the primary planet gear pair and the secondary planet gear pair gear ring 4.1 are connected and kept relatively fixed through bolts or splines, and the rotating speeds are guaranteed to be consistent.

The planet carrier 4.4 of the secondary planetary gear pair and the worm wheel 5.3 are designed into a whole, are relatively fixed and keep the rotating speed consistent; the sun gear 4.3 of the secondary planetary gear pair and the output shaft 9 are designed into a whole to form a torque output part of the device.

As shown in fig. 2, the electric drive and the hand-cranking drive respectively transmit power to the output shaft through different transmission lines, are independent and redundant. The en-route arrows indicate the power transmission routes.

The invention has two embodiments

First, two formula gearbox of driving of flashlight + servo motor + planetary reducer configuration forms

FIG. 3 is an assembled outline view of the two-drive manual-electric transmission 12 and the planetary reducer 11 according to one embodiment of the invention; the manual-electric two-drive type gearbox 12 is divided into three parts, and the power input end transmits power to the output shaft through two sets of 2K-H-NGW type cylindrical gear planetary transmission mechanisms and a worm gear pair. The primary planetary transmission mechanism is a speed reducing mechanism, the sun gear is input, the planet carrier is output, and the gear ring is fixed; the second-stage planetary transmission mechanism is a speed increasing mechanism, a gear ring is input, a sun gear is output, and the gear ring is fixed with a planet carrier of the first set of planetary transmission mechanism; the worm gear and worm pair has a self-locking characteristic, the worm is used as an input end of manual driving, the manual rod is connected with the worm after passing through the group of speed-increasing straight gear pairs, and the worm gear is fixed with the planet carrier of the second set of planetary transmission mechanism. And manual input ports are respectively arranged on the left side surface and the right side surface of the planetary reducer 11. And an installation interface is designed at the top of the manual-electric two-drive type gearbox 12.

FIG. 4 is a structure view of the integration of the worm gear and the planet carrier of the secondary planetary gear pair; fig. 5 is a mounting structure diagram of a hand-operated input speed-increasing spur gear, which comprises a bearing seat 6.1, a hand-operated input end cover 6.2, a hand-operated input shaft 6.3, a gland 6.4, a spur gear auxiliary driving wheel 6.5, a spur gear auxiliary driven wheel 5.1 and a worm shaft 5.2. The speed-increasing straight gear pair comprises a straight gear pair driving wheel 6.5 and a straight gear pair driven wheel 5.1 and has the functions of adjusting the hand-cranking rotating speed and ensuring the structural size.

Defining the reduction ratio of the planetary speed reducer as i 1; the first-stage planetary gear pair has the sun gear input and the planet carrier output, and the gear ratio is i2 when the gear ring is fixed; the speed ratio of the secondary planetary gear pair, the gear ring input and the sun gear output when the planet carrier is fixed is i 3; the speed ratio of the secondary planetary gear pair is i4 when the planet carrier input and the sun gear output are fixed; the worm gear ratio is i 5; the speed-increasing spur gear pair has a speed ratio of i 6. The motor input speed reduction ratio i is electricity 1 × i2 × i3, the hand input speed reduction ratio i is hand 6 × i5 × i4, and the relationship between i3 and i4 is 1/i3+1 to 1/i4 according to the planetary gear transmission principle.

Second, two formula gearbox of driving of flashlight + motor configuration forms

The input end of the flashlight double-drive type gearbox 12 can be directly connected with the motor 10, at the moment, the rotating speed of the input end of the motor is high, the torque is small, and the motor does not pass through a first-stage speed reducing mechanism, so that the reduction ratio of a first-stage planetary gear pair in the flashlight double-drive type gearbox is designed and adjusted as required, and the torque and the speed meeting the requirements are obtained. And hand input port can set up the hand rocker, also can dispose the motor of a miniwatt high rotational speed to satisfy the operation requirement. Fig. 6 is a profile view of the flashlight two-drive type gearbox configured in this manner.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are intended to be covered by the scope of the present invention.