阅读说明：本技术 一种面向山地梯子路的谐波齿轮式平衡运输车 (Harmonic gear type balance transport vehicle for mountain terraced road ) 是由 乔晋崴 梁海岗 史岩彬 刘娜 文志东 张力 曹莲英 于 2021-09-02 设计创作，主要内容包括：本发明属于运输机械技术领域,尤其涉及一种面向山地梯子路的谐波齿轮式平衡运输车,包括车身装置、控制装置和谐波轮装置,谐波轮装置设置在车身装置的左、右两侧,谐波轮装置包括谐波齿轮部分、轮内传动部分和车轮；轮内传动部分包括电机和传动限位机构,电机的输出轴与所述谐波发生器连接,电机可带动谐波发生器转动。车轮通过刚轮外部固定机构与刚轮连接,刚轮可带动所述车轮转动；本发明是利用谐波齿轮结构,根据外界环境的阻力变化,自行调整输出形式实现机构整体的重心变化,通过限位机构来改变运动构件的转换以完成平地运动与爬升运动的转换。(The invention belongs to the technical field of transport machinery, and particularly relates to a mountain terraced road-oriented harmonic gear type balance transport vehicle which comprises a vehicle body device, a control device and a harmonic wheel device, wherein the harmonic wheel device is arranged on the left side and the right side of the vehicle body device and comprises a harmonic gear part, an in-wheel transmission part and wheels; the in-wheel transmission part comprises a motor and a transmission limiting mechanism, an output shaft of the motor is connected with the harmonic generator, and the motor can drive the harmonic generator to rotate. The wheels are connected with the rigid wheel through a rigid wheel external fixing mechanism, and the rigid wheel can drive the wheels to rotate; the invention utilizes a harmonic gear structure, automatically adjusts the output form to realize the change of the gravity center of the whole mechanism according to the resistance change of the external environment, and changes the conversion of a moving component through a limiting mechanism to finish the conversion of the flat ground movement and the climbing movement.)

1. The utility model provides a balanced transport vechicle of harmonic gear formula towards hillside ladder way which characterized in that: the device comprises a vehicle body device and a harmonic wave wheel device, wherein the harmonic wave wheel device is arranged on the left side and the right side of the vehicle body device;

the harmonic wave wheel device comprises a harmonic wave gear part, an in-wheel transmission part and wheels; the harmonic gear part comprises a rigid gear, a flexible gear and a harmonic generator, and the flexible gear can be meshed with the rigid gear; the wheels are connected with the rigid wheel through a rigid wheel external fixing mechanism, and the rigid wheel can drive the wheels to rotate; the in-wheel transmission part comprises a motor and a transmission limiting mechanism, two ends of the motor are respectively connected with the harmonic generator and the flexible gear, and the motor can drive the harmonic generator and the flexible gear to rotate.

2. The mountain ladder way-oriented harmonic gear type balance transport vehicle as claimed in claim 1, wherein the transmission limiting mechanism comprises a main bearing shaft and an auxiliary limiting shaft, one end of the main bearing shaft and one end of the auxiliary limiting shaft are connected to a coupler of the motor through bearing seats, the other end of the main bearing shaft and the other end of the auxiliary limiting shaft are fixedly connected with an axial fixing device through the bearing seats, and the main bearing shaft and the auxiliary limiting shaft are arranged at a certain angle.

3. The mountain ladder way-oriented harmonic gear type balance transport vehicle as claimed in claim 2, wherein when the vehicle is running on a plane, the motor drives the harmonic generator to rotate, the flexible gear is meshed with the rigid gear, and the rigid gear drives the wheels to rotate, so that the vehicle is running on the plane, wherein the main bearing shaft is at the lowest end.

4. The mountain ladder way-oriented harmonic gear type balance transport vehicle as claimed in claim 3, wherein when a step is encountered, the rigid wheel and the tire stop rotating, and the motor drives the harmonic generator and the flexible wheel to continue rotating, so that the gravity center of the vehicle body rises; when the automobile body is higher than the step height, supplementary spacing axle blocks main bearing axle and continues the lifting, and the resistance that supplementary spacing axle produced makes the automobile body can not continue the lifting, thereby harmonic generator drives flexbile gear and rigid wheel meshing and drives the tire rotation, and the focus of automobile body is higher than the step this moment, and the automobile body whole can climb this one-level step, and main bearing axle gets back to the least significant end.

5. The mountain ladder facing harmonic gear balanced transport vehicle of claim 1 wherein the tire comprises a resilient tire and a rigid hub.

6. The harmonic gear type balance transport vehicle facing the mountain ladder way as claimed in claim 1, wherein the vehicle body device comprises a vehicle frame, and a transmission limiting mechanism is further arranged on the lower bottom surface of the vehicle frame and used for limiting the vehicle body.

7. The mountain ladder way-oriented harmonic gear type balance transport vehicle as claimed in claim 1, wherein a balance motor for keeping balance is arranged on the lower bottom surface of the frame, and a control device is arranged on the frame and electrically connected with the harmonic wheel device.

Technical Field

The invention belongs to the technical field of transport machinery, and particularly relates to a harmonic gear type balance transport vehicle for a mountain terraced road.

Background

In the prior art, most of stair climbers mainly adopt caterpillar tracks, multiple feet and multiple wheels, and the equipment is efficient on standard stairs. But are difficult to adapt to the narrow ladder path with variable terrain in agricultural orchards in mountainous regions.

The bearing capacity of the harmonic gear is large, the harmonic gear moves stably, the characteristics of no impact and low noise are significant for improving the motion performance and the environment adaptability of the balance transport vehicle mechanism, through the transmission motion of the harmonic gear, a load person and a small amount of goods which can be relaxed by the balance transport vehicle mechanism move on a ladder road, the advancing motion of the balance transport vehicle is matched with the gravity center lifting motion of the vehicle body through the transmission limiting mechanism, and the balance transport vehicle mechanism can flexibly adapt to the conditions of various terrains. Although there is a study on a stair climbing machine in the prior art, for example, chinese patent application No. CN105966521A discloses a multifunctional stair climbing vehicle with a carrier, a multi-wheel stair climbing machine represented by the multifunctional stair climbing vehicle with a carrier generally has a slightly less compact structure in the prior art, and a planetary wheel has a complex structure, a large volume, a heavy transmission ratio far smaller than that of a harmonic gear, impact resistance, rigidity, strength far inferior to that of the harmonic gear, and poor adaptability to a ladder path in a mountain terrain, and some key gears and other transmission parts are exposed outside and easily damaged.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the harmonic gear type balance transport vehicle which is safe and reliable to use and faces to the mountain terraced road.

The invention is realized by the following technical scheme:

a harmonic gear type balance transport vehicle facing to a mountain terraced road comprises a vehicle body device and harmonic wave wheel devices, wherein the harmonic wave wheel devices are arranged on the left side and the right side of the vehicle body device; the harmonic wave wheel device comprises a harmonic wave gear part, an in-wheel transmission part and wheels; the harmonic gear part comprises a rigid gear, a flexible gear and a harmonic generator, and the flexible gear can be meshed with the rigid gear; the wheels are connected with the rigid wheel through a rigid wheel external fixing mechanism, and the rigid wheel can drive the wheels to rotate; the in-wheel transmission part comprises a motor and a transmission limiting mechanism, two ends of the motor are respectively connected with the harmonic generator and the flexible gear, and the motor can drive the harmonic generator and the flexible gear to rotate.

Preferably, the transmission limiting mechanism comprises a main bearing shaft and an auxiliary limiting shaft, one end of the main bearing shaft and one end of the auxiliary limiting shaft are connected to the coupler of the motor through bearing seats, the other end of the main bearing shaft and the other end of the auxiliary limiting shaft are fixedly connected with the axial fixing device through the bearing seats, and the main bearing shaft and the auxiliary limiting shaft are arranged at a certain angle.

When the vehicle runs on a plane, the motor drives the harmonic generator to rotate, the flexible gear is meshed with the rigid gear, and the rigid gear drives the wheels to rotate, so that the vehicle runs on the plane.

When the vehicle runs into a step, the rigid wheel and the tire stop rotating, and the motor drives the harmonic generator and the flexible wheel to continue rotating so that the gravity center of the vehicle body rises; when the automobile body was high when the step height, supplementary spacing axle blockked main bearing axle and continues the lifting, and the resistance that supplementary spacing axle produced makes the automobile body can not continue the lifting, thereby harmonic generator drives the meshing of flexbile gear and rigid wheel and drives the tire rotation, and the focus of automobile body was high the step this moment, and this one-level step can be climbed to the automobile body whole, and main bearing axle is got back to the least significant end because of gravity reason simultaneously.

Preferably, the vehicle body device comprises a vehicle frame, and a transmission limiting mechanism is further arranged on the lower bottom surface of the vehicle frame and used for limiting the vehicle body.

Preferably, a balance motor for keeping balance is arranged on the lower bottom surface of the frame. The control device is arranged on the frame and electrically connected with the harmonic wheel device. The balance of the trolley in the moving process can be realized, and people only take charge of speed reduction and transformation when standing on the trolley.

When the balance transport vehicle works, the motor drives the harmonic generator to rotate, the flexible wheel is meshed with the rigid wheel to drive the driven tire to rotate, and running on a plane is completed; because of gravity, the main bearing shaft is at the lowest end, when encountering a step, the motor continues to rotate, but the tire stops rotating, because the motor is fixed with the flexible wheel, the motor continues to drive the harmonic generator to rotate, at the moment, the rigid wheel and the tire cannot rotate, the flexible wheel can drive the main bearing shaft on the transmission limiting mechanism to lift, the gravity center of the mechanism is improved, when the gravity center is higher than the height of the step, the auxiliary limiting shaft of the transmission limiting mechanism blocks the main bearing shaft to continue lifting, the auxiliary limiting shaft generates resistance to enable the vehicle body not to continue lifting, so that the rigid wheel of the harmonic gear is driven to drive the tire to rotate, at the moment, the gravity center of the mechanism is higher than the step, the whole mechanism can climb over the step, and meanwhile, the main bearing shaft returns to the lowest position due to gravity. Thereafter, the climbing of the next step is performed according to the same principle.

The goods shelf on the vehicle body device is used for loading transported people and goods.

The motor control system under the vehicle body is used for facilitating resetting and balancing in a static state.

Advantageous effects

The invention discloses a mountain terraced road-oriented harmonic gear type balance transport vehicle, which utilizes a harmonic gear structure to realize the change of the gravity center of the whole mechanism, and changes the conversion of a moving component through a limiting mechanism to complete the conversion of flat ground movement and climbing movement.

The balance transport vehicle disclosed by the invention has the following beneficial effects: the bearing capacity of the harmonic gear is large, the harmonic gear moves stably, the characteristics of no impact and low noise are significant for improving the motion performance and the environment adaptability of the balance transport vehicle mechanism, through the transmission motion of the harmonic gear, a load person and a small amount of goods which can be relaxed by the balance transport vehicle mechanism move on a ladder road, the advancing motion of the balance transport vehicle is matched with the gravity center lifting motion of the vehicle body through the transmission limiting mechanism, and the balance transport vehicle mechanism can flexibly adapt to the conditions of various terrains. The mode is rarely applied to agriculture with large rough road surface fluctuation range, and has profound significance for the development of agriculture.

Drawings

FIG. 1: the structure schematic diagram of the balance transport vehicle in use is shown;

FIG. 2: the invention relates to a schematic view structure of a balance transport vehicle;

FIG. 3: the invention relates to a schematic view of a bottom structure of a balance transport vehicle;

FIG. 4: the invention discloses a schematic three-dimensional structure of a balance transport vehicle;

FIG. 5: the invention discloses a schematic plan view structure of a balance transport vehicle;

FIG. 6: the invention discloses a left view structure schematic diagram of a harmonic wheel device;

FIG. 7: the section structure schematic diagram of the harmonic wave wheel device is shown in the invention;

FIG. 8: the invention discloses a schematic disassembly structure of a harmonic wheel device;

FIG. 9: the invention discloses a schematic three-dimensional structure of a harmonic wheel device;

FIG. 10: the invention discloses a structural schematic diagram of a transmission limiting device;

FIG. 11: the invention relates to a structural schematic diagram of a balanced transport vehicle when climbing a slope;

in the figure: 1: vehicle body device 2: control device, 3: harmonic wheel device, 3-1: rigid wheel, 3-2: wheel, 3-3: motor fixing, 3-4: left flexible gear output shaft, 3-5: rigid wheel external fixation, 3-6: flexible gear, 3-7: harmonic generator, 3-8: motor, 3-9: axial fixing device, 4: basket, 5: balance motor, 6: stop gear, 7: main bearing shaft, 8: auxiliary limiting shafts.

Detailed Description

Hereinafter, the present invention will be described in detail. Before the description is made, it should be understood that the terms used in the present specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation. Accordingly, the description proposed herein is just a preferable example for the purpose of illustrations only, not intended to limit the scope of the invention, so it should be understood that other equivalents and modifications could be made thereto without departing from the spirit and scope of the invention.

The following examples are given by way of illustration of embodiments of the invention and are not to be construed as limiting the invention, and it will be understood by those skilled in the art that modifications may be made without departing from the spirit and scope of the invention. Unless otherwise specified, reagents and equipment used in the following examples are commercially available products.

Example 1

A harmonic gear type balance transport vehicle facing to a mountain terraced road is shown in figures 1-5 and comprises a vehicle body device 1, a control device 2 and a harmonic wave wheel device 3, wherein the harmonic wave wheel device is arranged on the left side and the right side of the vehicle body device.

As shown in fig. 6-9, the harmonic wheel device 3 includes a harmonic gear portion, an in-wheel transmission portion, and a wheel 3-2; the harmonic gear part comprises a rigid gear 3-1, a flexible gear 3-6 and a harmonic generator 3-7, and the flexible gear can be meshed with the rigid gear; the wheel 3-2 is connected with the rigid wheel 3-1 through a rigid wheel external fixing mechanism, and the rigid wheel 3-1 can drive the wheel 3-2 to rotate; the in-wheel transmission part comprises a motor 3-8 and a transmission limiting mechanism, two ends of the motor 3-8 are respectively connected with the harmonic generator 3-7 and the flexible gear 3-6, and the motor 3-8 can drive the harmonic generator 3-7 and the flexible gear 3-6 to rotate.

As shown in fig. 10, the transmission limiting mechanism includes a main bearing shaft 7 and an auxiliary limiting shaft 8, one end of the main bearing shaft and one end of the auxiliary limiting shaft are connected to the coupler of the motor through bearing seats, the other end of the main bearing shaft and the other end of the auxiliary limiting shaft are fixedly connected with an axial fixing device through bearing seats, and the main bearing shaft and the auxiliary limiting shaft are arranged at a certain angle.

When the vehicle runs on a plane, the motor drives the harmonic generator to rotate, the flexible gear is meshed with the rigid gear, and the rigid gear drives the wheels to rotate, so that the vehicle runs on the plane.

When the vehicle runs into a step, the rigid wheel and the tire stop rotating, and the motor drives the harmonic generator to continue rotating so that the gravity center of the vehicle body rises; when the automobile body was high when the step height, supplementary spacing axle blockked main bearing axle and continues the lifting, and the resistance that supplementary spacing axle produced makes the automobile body can not continue the lifting, thereby harmonic generator drives the meshing of flexbile gear and rigid wheel and drives the tire rotation, and the focus of automobile body was high the step this moment, and this one-level step can be climbed to the automobile body whole, and main bearing axle is got back to the least significant end because of gravity reason simultaneously.

The harmonic wheel device of the invention is essentially different from the common gear transmission, and the controllable deformation wave generated by the flexible gear is used for causing relative staggered teeth between teeth to transmit force and movement. Specifically, the method comprises the following steps: the transmission mechanism of the harmonic gear consists of a waveform generator, a flexible gear and a rigid gear. The flexible gear is a thin-wall outer gear ring, the rigid gear is provided with an inner gear ring, the rigid gear is 2-4 teeth more than the flexible gear (the number of the contact gears on the waveform generator is different, and the double-waveform type is 2), the flexible gear is supported into an oval shape by a pair of rollers of the wave generator, when the wave generator is a driving gear, the flexible gear and the rigid gear are driven gears, the outer gear teeth on the flexible gear are completely meshed with the inner gear teeth on the rigid gear in the major axis direction of the oval flexible gear, the minor axis direction of the flexible gear is completely separated, and the middle area is in a transition state. When the wave generator rotates clockwise one turn, the flexspline rotates counterclockwise by 2 teeth relative to the fixed rigid gear, thus changing the fast rotation of the wave generator into the slow rotation of the rigid gear. When the rigid wheel and the step are locked (switched at the moment) and fixed, the rigid wheel and the flexible wheel continue to move relatively due to the relative staggered teeth, and the rigid wheel is fixed, so that the flexible wheel rotates slowly.

The vehicle body device comprises a vehicle frame 4, and a balance motor 5 for keeping balance is arranged on the lower bottom surface of the vehicle frame.

And the lower bottom surface of the frame is also provided with a limiting mechanism 6 for limiting the vehicle body.

When the balance transport vehicle works, the motor drives the harmonic generator to rotate, the flexible wheel is meshed with the rigid wheel to drive the driven tire to rotate, and running on a plane is completed; because of gravity, the main bearing shaft is at the lowest end, when encountering a step, the motor continues to rotate, but the tire stops rotating, because the motor is fixed with the flexible wheel, the motor continues to drive the harmonic generator to rotate, at the moment, the rigid wheel and the tire cannot rotate, the flexible wheel can drive the main bearing shaft on the transmission limiting mechanism to lift, the gravity center of the mechanism is improved, when the gravity center is higher than the height of the step, the auxiliary limiting shaft of the transmission limiting mechanism blocks the main bearing shaft to continue lifting, the auxiliary limiting shaft generates resistance to enable the vehicle body not to continue lifting, so that the rigid wheel of the harmonic gear is driven to drive the tire to rotate, at the moment, the gravity center of the mechanism is higher than the step, the whole mechanism can climb over the step, and meanwhile, the main bearing shaft returns to the lowest position due to gravity. Thereafter, the climbing of the next step is performed according to the same principle.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.