阅读说明：本技术 一种物资装卸平台用轮距可变结构 (Track variable structure for material loading and unloading platform ) 是由 林建新 何峰 王明刚 刘兰涛 于 2020-12-06 设计创作，主要内容包括：本发明公开了一种物资装卸平台用轮距可变结构,属于特种大型运输装备技术领域,该轮距可变结构包括安装座、转向臂、悬架臂、轮距调整机构和转向机构等,其中,安装座固定于车架上且用于安装转向臂和悬架臂,轮距调整机构能够驱动悬架臂旋转实现车轮的收纳,转向机构能够带动转向臂摆动。与现有悬挂、底盘结构相比,本发明结构不仅能够通过收纳车轮,实现物资装卸平台整体宽度的改变,而且可以实现全轮转向,方便平台穿过狭窄空间,满足大型物资装卸平台的应用需求。(The invention discloses a wheel track variable structure for a material loading and unloading platform, which belongs to the technical field of special large-scale transportation equipment and comprises an installation seat, a steering arm, a suspension arm, a wheel track adjusting mechanism, a steering mechanism and the like, wherein the installation seat is fixed on a vehicle frame and used for installing the steering arm and the suspension arm, the wheel track adjusting mechanism can drive the suspension arm to rotate to realize the storage of wheels, and the steering mechanism can drive the steering arm to swing. Compared with the existing suspension and chassis structure, the structure provided by the invention not only can change the whole width of the material loading and unloading platform by accommodating wheels, but also can realize all-wheel steering, so that the platform can conveniently penetrate through a narrow space, and the application requirement of a large material loading and unloading platform is met.)

1. The utility model provides a goods are track varistructure for loading and unloading platform, characterized by, includes mount pad (1), steering arm (2), suspension arm (3), track adjustment mechanism (4) and steering mechanism (5), wherein:

the steering arm (2) consists of a steering cross arm (201) and a steering inclined arm (202), the steering cross arm (201) is rotatably arranged in the mounting seat (1), the bottom of the steering inclined arm (202) is provided with a steering articulated seat (203) used for being connected with a steering mechanism (5), and the bottom surface of the steering cross arm (201) is provided with a fixed seat (204) used for mounting a track adjusting mechanism (4);

the top of the suspension arm (3) is rotatably arranged in the mounting seat (1), and the bottom of the suspension arm (3) is provided with a driving wheel (6);

the wheel track adjusting mechanism (4) comprises an adjusting worm wheel (401), an adjusting worm (402), a transmission gear group (403) and a speed reducer (404), the adjusting worm wheel (401) is arranged at the top of the suspension arm (3), the adjusting worm (402) is installed in the fixing seat (204) and meshed with the adjusting worm wheel (401), and the tail end of the adjusting worm (402) is connected with a motor or a motor through the transmission gear group (403) and the speed reducer (404);

the steering mechanism (5) is connected with the steering hinged seat (203) and is used for driving the steering arm (2), the suspension arm (3) and the driving wheel (6) to swing in sequence.

2. The track variable structure for the goods and materials loading and unloading platform according to claim 1, characterized in that the suspension arm (3) is composed of a first connecting arm (301) and a second connecting arm (302) which are hinged to each other, a telescopic cylinder (303) is installed between the first connecting arm (301) and the second connecting arm (302), the telescopic motion of the telescopic cylinder (303) can change the included angle between the first connecting arm (301) and the second connecting arm (303) to drive the goods and materials loading and unloading platform to move up and down, the top of the first connecting arm (301) is rotatably arranged on the mounting base (1), and the bottom of the second connecting arm (303) is used for installing the driving wheel (6).

3. The track variable structure for material loading and unloading platforms according to claim 2, characterized in that the mounting seat (1) is composed of a clamping seat (101), a main hinge seat (102) and a rotating shaft (103), wherein:

the clamping seat (101) is used for connecting a longitudinal beam of the frame (7);

the rotating shaft (103) is arranged in the main hinge seat (102) and is used for sequentially arranging a steering cross arm (201), an adjusting turbine (401) and a first connecting arm (301).

4. The track structure for material loading and unloading platforms according to claim 3, characterized in that the steering mechanism (5) comprises a bidirectional cylinder (501), a first telescopic rod (502), a second telescopic rod (503), a first connecting arm (504) and a second connecting arm (505), wherein:

the bidirectional oil cylinder (501) is arranged on a cross beam of the frame (7) through a base;

a first telescopic rod (502) of the bidirectional oil cylinder (501) is hinged to one end of a first connecting arm (504), and the other end of the first connecting arm (504) is hinged to a steering hinged seat (203) on one side;

and a second telescopic rod (503) of the bidirectional oil cylinder (501) is hinged with one end of a second connecting arm (505), and the other end of the second connecting arm (505) is hinged with a steering hinged seat (203) on the other side.

5. The track variable structure for a material loading and unloading platform according to claim 4, wherein the driving wheel (6) comprises a wheel hub motor (601) and a wheel (602), and the wheel hub motor (601) is used for driving the wheel (402) to rotate.

6. Track structure variable arrangement for a material handling platform according to claim 5, characterized in that the number of the mounting (1), steering arm (2), suspension arm (3), track adjustment mechanism (4) and drive wheel (6) is four, six, eight, ten or twelve.

7. The track variable structure for the material loading platform according to claim 6, wherein the number of the mounting seat (1), the steering arm (2), the suspension arm (3), the track adjusting mechanism (4) and the driving wheel (6) is ten, and two track variable structures are symmetrically mounted on the frame (7) in a group to form five groups of track variable structures, wherein: steering mechanisms (5) are arranged among the first group of track variable structures, the second group of track variable structures, the fourth group of track variable structures and the fifth group of track variable structures.

Technical Field

The invention belongs to the technical field of special large-scale transportation equipment, and particularly relates to a track variable structure for a material loading and unloading platform.

Background

In the current society, the logistics transportation industry develops rapidly, and how to reliably, massively and conveniently load and unload and transfer materials becomes the technical difficulty in the field. At present, the existing material loading and unloading platform mostly adopts a front wheel steering structure or a rear wheel steering structure, has larger steering radius and general trafficability, and can not meet the requirements of modern transportation. Particularly in the field of airport transportation, cargo needs to be efficiently and safely transported to an airplane storage bin by a loading and unloading platform, the attitude of a vehicle body needs to be continuously adjusted in a small space due to limited space of the airport and the storage bin, so that actions such as starting, stopping, steering and the like are completed, and the improvement and optimization of the existing structure are urgently needed to meet new technical requirements.

Disclosure of Invention

In view of the above, the invention provides a track variable structure for a material loading and unloading platform, which has a simple structure and is reliable in operation, not only can change the whole width of the material loading and unloading platform by accommodating wheels, but also can realize all-wheel steering, so that the platform can conveniently pass through a narrow space, and the application requirements of a large material loading and unloading platform are met.

The invention adopts the following technical scheme:

a track variable structure for a material loading platform comprises a mounting seat, a steering arm, a suspension arm, a track adjusting mechanism and a steering mechanism, wherein: the steering arm consists of a steering cross arm and a steering inclined arm, the steering cross arm is rotatably arranged in the mounting seat, the bottom of the steering inclined arm is provided with a steering hinged seat used for connecting a steering mechanism, and the bottom surface of the steering cross arm is provided with a fixed seat used for mounting a wheel track adjusting mechanism; the top of the suspension arm is rotatably arranged in the mounting seat, and the bottom of the suspension arm is provided with a driving wheel; the wheel track adjusting mechanism comprises an adjusting worm wheel, an adjusting worm, a transmission gear group and a speed reducer, the adjusting worm wheel is arranged at the top of the suspension arm, the adjusting worm is arranged in the fixed seat and meshed with the adjusting worm wheel, and the tail end of the adjusting worm is connected with a motor or a motor through the transmission gear group and the speed reducer; the steering mechanism is connected with the steering hinged seat and is used for driving the steering arm, the suspension arm and the driving wheel to swing in sequence.

Preferably, the suspension arm comprises first linking arm and second linking arm of mutual articulated, install flexible hydro-cylinder between first linking arm and the second connection, the contained angle between first linking arm and the second linking arm can be changed in order to drive goods and materials loading and unloading platform elevating movement to the concertina movement of flexible hydro-cylinder, the rotatable setting in mount pad in top of first linking arm, second linking arm bottom is used for installing the drive wheel.

Preferably, the mount pad is by joint socket, main articulated seat and pivot, wherein: the clamping seat is used for connecting a longitudinal beam of the frame; the rotating shaft is arranged in the main hinge seat and used for sequentially mounting the steering cross arm, the adjusting turbine and the first connecting arm.

Preferably, steering mechanism includes two-way hydro-cylinder, first telescopic link, second telescopic link, first linking arm and second linking arm, wherein: the bidirectional oil cylinder is arranged on a cross beam of the frame through a base; a first telescopic rod of the bidirectional oil cylinder is hinged with one end of a first connecting arm, and the other end of the first connecting arm is hinged with a steering hinge seat on one side; and a second telescopic rod of the bidirectional oil cylinder is hinged with one end of a second connecting arm, and the other end of the second connecting arm is hinged with a steering hinged seat on the other side.

Preferably, the driving wheel comprises an in-wheel motor and a wheel, and the in-wheel motor is used for driving the wheel to rotate.

Preferably, the number of the mounting seat, the steering arm, the suspension arm, the track adjusting mechanism and the driving wheel is four, six, eight, ten or twelve.

Preferably, the number of the mounting seat, the steering arm, the suspension arm, the track adjusting mechanism and the driving wheel is ten, and two of the mounting seat, the steering arm, the suspension arm, the track adjusting mechanism and the driving wheel are symmetrically mounted on the frame in a group to form a five-group track variable structure, wherein: steering mechanisms are arranged among the first group of track variable structures, the second group of track variable structures, the fourth group of track variable structures and the fifth group of track variable structures.

The track variable structure for the material loading and unloading platform has the following beneficial effects:

1) this wheel base variable structure adopts novel structure, with steering arm and suspension arm independent design, utilizes the width of the contained angle between the change steering arm that the worm gear structure can be ingenious and the suspension arm in order to change goods and materials loading and unloading platform, through the whole width of accomodating the reduction platform that the wheel can be very big, conveniently through narrow space, for example: getting on and off the airplane. Simultaneously, under full load state, the stability of carrying cargo of promotion platform that can be very big through increasing the wheel base.

2) The variable wheel track structure can work simultaneously in cooperation with a steering mechanism, and a more flexible steering angle is realized. The toe angle of the wheels is firstly adjusted by using the track variable structure, and then the steering angle of the wheels is changed by using the steering mechanism, so that the optimal all-wheel steering is ensured, the minimum steering radius of the material loading and unloading platform is realized, and the passing capacity of the material loading and unloading platform is obviously improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described 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 creative efforts.

FIG. 1 is a first overall structural schematic of the present invention;

FIG. 2 is a second overall structural schematic of the present invention;

FIG. 3 is a schematic illustration of the construction of a steering arm and a suspension arm according to the present invention;

FIG. 4 is a schematic view showing the construction of a steering mechanism according to the present invention;

FIG. 5 is a schematic view of the track adjustment mechanism of the present invention;

FIG. 6 is a schematic view of the installation of the present invention;

FIG. 7 is a schematic illustration of an application of the present invention;

FIG. 8 is a schematic illustration of the maximum track of the present invention;

fig. 9 is a schematic view of the minimum track of the present invention.

Wherein, 1-mounting seat, 101-clamping seat, 102-main hinged seat, 103-rotating shaft, 2-steering arm, 201-steering cross arm, 202-steering inclined arm, 203-steering hinged seat, 204-fixed seat, 3-suspension arm, 301-first connecting arm, 203-second connecting arm, 203-telescopic oil cylinder, 4-wheel track adjusting mechanism, 401-adjusting turbine, 402-adjusting worm, 403-transmission tooth group, 404-speed reducer, 5-steering mechanism, 501-bidirectional oil cylinder, 502-first telescopic rod, 503-second telescopic rod, 504-first connecting arm, 505-second connecting arm, 6-driving wheel, 601-in-wheel motor, 602-wheel, 7-frame

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 9, the track variable structure for the material loading and unloading platform comprises an installation seat 1, a steering arm 2, a suspension arm 3, a track adjusting mechanism 4 and a steering mechanism 5, as shown in fig. 1 and 2, the track adjusting mechanism 4 can drive the suspension arm 3 to rotate around the installation seat 1 to change the track, a driving wheel 6 in fig. 1 is in a minimum track state, in which the driving wheel can flexibly enter and exit a narrow space, and a driving wheel 6 in fig. 2 is in a maximum track state, in which the driving wheel is fully loaded, so that the stability of the platform can be improved.

As shown in fig. 3 and 4, the steering arm 2 is composed of a steering cross arm 201 and a steering oblique arm 202, the steering cross arm 201 and the steering oblique arm 202 are welded or integrally formed, the top of the steering cross arm 201 is provided with a hole, the steering cross arm 201 is rotatably arranged in the mounting seat 1, the bottom of the steering oblique arm 202 is provided with a steering articulated seat 203 for connecting the steering mechanism 5, and the bottom surface of the steering cross arm 201 is provided with a fixed seat 204 for mounting the track adjusting mechanism 4. Specifically, the steering mechanism 5 is connected with the steering hinge seat 203 and is used for driving the steering arm 2, the suspension arm 3 and the driving wheel 6 to swing in sequence.

It should be noted that the steering mechanism 5 includes a bidirectional oil cylinder 501, a first telescopic rod 502, a second telescopic rod 503, a first connecting arm 504 and a second connecting arm 505, wherein: the bidirectional oil cylinder 501 is arranged on a cross beam of the frame 7 through a base; a first telescopic rod 502 of the bidirectional oil cylinder 501 is hinged with one end of a first connecting arm 504, and the other end of the first connecting arm 504 is hinged with a steering hinged seat 203 on one side; the second telescopic rod 503 of the two-way oil cylinder 501 is hinged with one end of the second connecting arm 505, and the other end of the second connecting arm 505 is hinged with the steering hinged seat 203 on the other side. During actual work, by controlling the telescopic length of the bidirectional oil cylinder 501, the telescopic rod can sequentially drive the connecting arm, the steering hinged seat, the steering arm 2, the suspension arm 3 and the driving wheel 6 to swing, and the specific angle steering of the wheels is realized.

In fig. 3, the suspension arm 3 is composed of a first connecting arm 301 and a second connecting arm 302 which are hinged to each other, specifically, the top of the first connecting arm 301 is provided with a hole, the first connecting arm 301 is rotatably arranged in the mounting seat 1, a telescopic cylinder 303 is arranged between the first connecting arm 301 and the second connecting arm 302, two ends of the telescopic cylinder 303 are arranged in the middle of the first connecting arm 301 and the second connecting arm 302 through hinged shafts, the telescopic motion of the telescopic cylinder 303 can change the included angle between the first connecting arm 301 and the second connecting arm 303 to drive the goods and materials loading and unloading platform to move up and down, the top of the first connecting arm 301 is rotatably arranged in the mounting seat 1, the bottom of the second connecting arm 303 is used for installing the driving wheel 6, specifically, the driving wheel 6 comprises an in-wheel motor 601 and a wheel 602, the in-wheel motor 601 is used for driving the wheel 402 to rotate, independent control can be realized by adopting the in.

As shown in fig. 4 and 5, the wheel track adjusting mechanism 4 includes an adjusting worm wheel 401, an adjusting worm 402, a transmission gear set 403, and a speed reducer 404, where the adjusting worm wheel 401 is disposed on the top of the suspension arm 3, the adjusting worm wheel 401 is disposed coaxially with the top hole of the suspension arm 3, the adjusting worm wheel 401 is fixed on the top hole, the adjusting worm 402 is mounted in the fixing base 204 and meshed with the adjusting worm wheel 401, and the end of the adjusting worm 402 is connected to a motor or an electric motor through the transmission gear set 403 and the speed reducer 404, specifically, the transmission gear set 403 may be in the form of a bevel gear set, or another gear, and forward and reverse rotation of the adjusting worm 402 may drive the adjusting worm wheel 401 and the suspension arm 3 to rotate clockwise or counterclockwise, so as.

As shown in fig. 1 and 6, the mounting seat 1 comprises a clamping seat 101, a main hinge seat 102 and a rotating shaft 103, wherein the clamping seat 101 is used for connecting a longitudinal beam of the frame 7; the rotating shaft 103 is installed in the main hinge base 102 and is used for sequentially installing the steering cross arm 201, the adjusting worm gear 401 and the first connecting arm 301.

In specific implementation, as shown in fig. 7, 8 and 9, the number of the mounting seats 1, the steering arms 2, the suspension arms 3, the track adjusting mechanisms 4 and the driving wheels 6 may be four, six, eight, ten or twelve, or even more, and every two mounting seats 1, the steering arms 2, the suspension arms 3, the track adjusting mechanisms 4 and the driving wheels 6 are arranged on the frame 7 symmetrically. In this embodiment, the number of the mounting seat 1, the steering arm 2, the suspension arm 3, the track adjusting mechanism 4, and the driving wheel 6 is ten, and two sets of the ten are symmetrically mounted on the frame 7 to form five sets of track variable structures, wherein: steering mechanisms 5 are arranged among the first group of track variable structures, the second group of track variable structures, the fourth group of track variable structures and the fifth group of track variable structures, and the steering mechanisms 5 are not arranged among the third group of track variable structures. It should be noted that, as shown in fig. 8 and fig. 9, the track L represents the maximum width of the material loading and unloading platform, the track variable structure adopts a novel structure, the steering arm and the suspension arm are independently designed, the included angle between the steering arm and the suspension arm can be ingeniously changed by using the worm and gear structure to change the width L of the material loading and unloading platform, the overall width of the platform can be greatly reduced by accommodating wheels, and the material loading and unloading platform is convenient to pass through a narrow space, for example: getting on and off the airplane. Simultaneously, under full load state, the stability of carrying cargo of promotion platform that can be very big through increasing the wheel base.

Finally, it should be noted that: 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 understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.