CN114953956A - A crawler vehicle chassis system controlled by electric deceleration and double drive - Google Patents

Abstract

The invention relates to the technical field of tracked vehicles, in particular to a tracked vehicle chassis system controlled by electric speed reduction and double driving, which comprises a driving wheel, a thrust wheel, a guide wheel, a track, a traveling mechanism and a tensioning device, wherein the driving wheel, the thrust wheel and the guide wheel are respectively connected to the traveling mechanism in a butt joint way, the inner end of the driving wheel is provided with a power assembly in a butt joint way, the upper end of the traveling mechanism is also connected with a chassis frame, the power assembly comprises two groups of driving mechanisms for independently outputting power, the tracked vehicle chassis adopts a driving mode that double motors and double speed reducers are respectively in butt joint with two driving wheels on two sides, compared with the driving mode that a diesel engine used by the existing tracked vehicle chassis drives a mechanical mechanism gearbox, the tracked vehicle chassis system has the advantages of simple overall structure, convenient implementation and difficult failure generation, and can meet the requirement of driving power in a mode that the double motors and the double speed reducers are respectively in butt joint with the two driving wheels on two sides, the problem that the personal safety of constructors is easily affected when a fault occurs under the complex condition of the mountain is avoided.

Description

A crawler vehicle chassis system controlled by electric deceleration and double drive

technical field

The invention relates to the technical field of crawler vehicles, in particular to a crawler vehicle chassis system controlled by electric deceleration and double drive.

Background technique

A tracked vehicle refers to a "car" that uses a tracked running system instead of a wheeled running system. This kind of vehicle has low pressure on the ground unit, small sag, strong adhesion ability, and strong driving and passing ability. It is mainly used in transportation and handling operations in mountainous and complex environments, but its transmission structure and chassis structure are very different from conventional vehicles. The requirements for power output are extremely high for driving under load. Among them, the existing crawler vehicles are generally driven by a diesel engine with a mechanical structure gearbox. The realization of steering, forward, backward, and variable speed operations requires a combination of multiple operating mechanisms and shifting. However, the combined powertrain of the diesel engine and the gearbox needs to be matched with multiple sets The gear lever is used in combination. In order to realize automatic intelligent control under the situation of increasing shortage of human resources, it is necessary to automatically control various electric push rod mechanisms to control baffle pedals, etc. The implementation method is extremely difficult, and the intelligent control response is slow and the effect is poor. In addition, the electric actuator is also prone to failure; due to the complex situation in the mountains, the handling of materials needs to be operated by personnel during construction in the mountains. For the tense construction personnel, the manpower is greatly wasted, and the dangerous geographical environment and poisonous animals are harmful to the operator's personal life. Safety also has a great impact, so in the prior art, the powertrain of the conventional diesel engine combined gearbox has the above-mentioned great difficulty in improving, and the output power of the conventional electric motor cannot drive the driving wheels on both sides of the crawler at all. action, not to mention the load running.

Therefore, there is a need for a crawler vehicle chassis system with electric deceleration and dual-drive control to improve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a crawler vehicle chassis system controlled by electric deceleration and dual-drive, so as to solve the problems raised in the above-mentioned background art.

To achieve the above object, the present invention provides the following technical solutions:

A crawler vehicle chassis system controlled by electric deceleration and dual-drive includes driving wheels, supporting wheels, guide wheels, crawler belts, traveling mechanism and tensioning device. Above, the inner end of the driving wheel is connected to a power assembly, and the upper end of the walking mechanism is also connected to a chassis frame. The power assembly includes two sets of drive mechanisms that independently output power. The wheels output power; each of the driving mechanisms includes a motor and a reducer that are connected and fixed to the chassis frame, the motor is connected to a power supply module for power supply, and its output end is connected to the reducer, and the output end of the reducer is connected to a set of connections The connecting shaft is connected to the driving wheel on the corresponding side, and the two groups of independent output drive mechanisms respectively drive and output power to the driving wheels on both sides, which can meet the demand of driving power. The implementation is relatively simple and the response effect is faster.

As a preferred solution of the present invention, a front frame is connected to the upper end of the front part of the chassis frame, a mounting groove is formed in the middle of the adjacent end of the front frame and the chassis frame, and a power module is arranged in the installation groove; the power module is used for power supply, The output shaft of the motor is arranged horizontally in the direction of travel of the crawler, the reducer is matched to the end of the output shaft of the motor, and the output end is arranged vertically relative to the output shaft of the motor. The connecting shafts of the two reducers are arranged coaxially and concentrically to reduce The front end driving wheel of the crawler is driven by the machine, which in turn drives the driven wheel and the supporting wheel to rotate.

As a preferred solution of the present invention, the two driving mechanisms are butt-fixed and connected to form an integral body, the reducer is set as a helical gear-bevel gear reducer, and the two driving mechanisms are connected as a whole, which can simplify the assembly steps and make the drive axle Overall strength has been improved, making it more stable when traveling.

As a preferred solution of the present invention, the adjacent reducers are connected together by a connecting shaft, the connecting shaft includes a connecting column, both ends of the connecting column are fixedly connected with connecting flanges, and the reducer is installed on the side away from the output end. There is a connecting plate, the connecting plate and the connecting flange are fixedly connected by bolts, and the middle of the connecting flanges on both sides is provided with a groove body for the shaft body to be inserted into. The connecting flanges are respectively fixedly connected with the connecting plate by bolts, so as to connect the two driving mechanisms into one body.

As a preferred solution of the present invention, the upper end of the chassis frame is provided with a fixed bottom plate, and the upper end of the fixed bottom plate can be equipped with a control console and a matching body.

As a preferred solution of the present invention, the inner shape and size of the inner ring are adapted to the shape and size of the shaft body.

As a preferred solution of the present invention, an installation box is provided outside the power assembly. The installation box includes a box and a cover. The inside of the box is separated by a spacer, and the two drive mechanisms are respectively provided in the box. On both sides of the inner part of the box body, the two sides of the box body are provided with grooves for the connecting shaft to extend; the two sides of the end of the drive mechanism are provided with limit posts for limiting its position, and the two sides of the middle part of the drive mechanism are provided with several A limit plate is placed, and the drive mechanism is placed in the installation box, so that the two drive mechanisms are connected into one, so that the overall strength of the drive axle is improved, and the limit column and limit plate can limit the installation of the drive mechanism to ensure the structural integrity stability.

As a preferred solution of the present invention, the upper end of each limit post and the upper surface of the spacer are provided with screw holes, the corresponding screw holes on the cover are sequentially provided with screw holes, and the screw holes and the corresponding screw holes are provided with screw holes in sequence. Connected by bolts.

As a preferred solution of the present invention, one end of each of the limiting posts is provided with a protruding end, and the protruding end is provided on the side surface of the driving mechanism to limit the position.

As a preferred solution of the present invention, infrared sensors are installed at the front end of the head frame and the rear end of the fixed base plate, and a controller, a speed sensor and a GPS locator are installed inside the head frame, and the controller is connected with the infrared sensor and the speed sensor. , GPS locator and driving mechanism are all electrically connected. The infrared sensor can detect obstacles, and transmit different electrical signals to the controller to control the forward and backward of the driving mechanism to avoid collision. The speed sensor can detect obstacles. The speed of the vehicle is monitored, and the GPS locator can monitor the position of the vehicle.

Compared with the prior art, the beneficial effects of the present invention are:

In the present invention, the chassis of the crawler vehicle adopts a driving mode in which double motors and double reducers are respectively connected to the two driving wheels on both sides. Compared with the driving mode in which the diesel engine drives the mechanical mechanism gearbox used in the chassis of the existing crawler vehicle, the overall structure is simple. It can be easily implemented, and it is not easy to cause failure. The way of connecting the two driving wheels on both sides of the double motor and double reducer can meet the demand of driving power, and avoid failure in complex mountainous conditions, which may easily affect the personal safety of construction workers. And the two drive units are connected together, the overall assembly is simple and the structural strength of the drive axle is improved. With the controller, infrared sensor, speed sensor and GPS locator, intelligent control of vehicle speed, vehicle position and obstacle observation can be realized. The overall driving process more intelligent.

Description of drawings

1 is a schematic three-dimensional structure diagram of Embodiment 1 of the present invention;

FIG. 2 is a schematic side view structure diagram of Embodiment 1 of the present invention;

3 is a perspective view of a driving mechanism in Embodiment 1 of the present invention;

4 is a top view of the driving mechanism in Embodiment 1 of the present invention;

Fig. 5 is the enlarged structure schematic diagram of A place in Fig. 4;

6 is a partial cross-sectional view of the driving mechanism in the second embodiment of the present invention;

FIG. 7 is a principle block diagram of the present invention.

In the figure: chassis frame 1, head frame 2, installation slot 3, drive mechanism 4, motor 41, reducer 42, connecting shaft 43, driving wheel 44, connecting shaft 45, connecting column 451, connecting flange 452, inner ring 453. Connecting plate 46, shaft body 47, crawler belt 5, spacer bar 6, roller 7, guide wheel 8, screw hole 9, limit plate 10, box body 11, cover 12, limit post 13.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts, all belong to the protection scope of the present invention.

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the related art. Several embodiments of the invention are presented. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to Figures 1-7, the present invention provides a technical solution:

Embodiment 1, please refer to Figures 1, 2, 3, 4, 5 and 7, a crawler vehicle chassis system controlled by electric deceleration and double drive, including driving wheel 44, support wheel 7, guide wheel 8, crawler 5, walking Mechanism and tensioning device, the driving wheel 44, the supporting wheel 7, and the guide wheel 8 are respectively connected to the traveling mechanism, the inner end of the driving wheel 44 is connected to the power assembly, and the upper end of the traveling mechanism is also connected to the chassis frame 1. The two drive mechanisms 4 are respectively connected to the driving wheels 44 on both sides to output power; each drive mechanism 4 includes a motor 41, a reducer 42, a motor 41 connected and fixed to the chassis frame 1 respectively. The connection is provided with a power supply module for power supply, the output end of which is connected to the reducer 42, the output end of the reducer 42 is connected with a connecting shaft 45, the connecting shaft 45 is connected with the driving wheel 44 on the corresponding side, and the upper end of the front part of the chassis frame 1 is connected with the head frame 2 , a mounting slot 3 is opened in the middle of the adjacent ends of the front frame 2 and the chassis frame 1, and a power module is arranged in the mounting slot 3; the output shaft of the motor 41 is horizontally arranged in the direction of travel of the crawler, and the reducer is matched to the end of the output shaft of the motor 41. , its output end is vertically arranged relative to the output shaft of the motor 41, the connecting shafts 45 connected to the two reducers 42 are arranged coaxially and concentrically, the two driving mechanisms 4 are butt-fixed and connected as a whole, and the reducer 42 is arranged as a helical gear-bevel gear deceleration The two drive mechanisms are connected into one, which can simplify the assembly and correction, improve the overall strength of the drive axle, and make it more stable when traveling. The adjacent reducers 42 are connected into one by the connecting shaft 45. , both ends of the connecting column 451 are fixedly connected with a connecting flange 452, the side of the reducer 42 away from the output end is installed with a connecting plate 46, the connecting plate 46 and the connecting flange 452 are fixedly connected by bolts, and the connecting flanges 452 on both sides are connected. The middle part is provided with a groove body for the shaft body 47 to be inserted into the groove body. The inner ring 453 is rotatably connected in the groove body. The upper end of the chassis frame is provided with a fixed bottom plate. The size is adapted to the shape and size of the shaft body 47. The connecting flanges 452 at both ends of the connecting shaft 45 are fixedly connected with the connecting plate 6 through bolts, so as to connect the two driving mechanisms into one, the front end of the head frame 2 and the fixed bottom plate. 1. Infrared sensors are installed at the rear end. The head frame 2 is equipped with a controller, a speed sensor and a GPS locator. The controller and the infrared sensor, the speed sensor, the GPS locator and the driving mechanism are all electrically connected. Infrared sensors can detect obstacles, and transmit different electrical signals to the controller to control the forward and backward of the drive mechanism to avoid collisions. The speed sensor can monitor the speed of the vehicle, and the GPS locator can monitor the position of the vehicle.

The difference between Embodiment 2 and Embodiment 1 is that an installation box is provided outside the power assembly. The installation box includes a box 11 and a cover 12. The inside of the box 11 is separated by a spacer 6, and the two drive The mechanisms are respectively arranged on both sides of the inside of the box body 11, the two sides of the box body 11 are provided with grooves for the connecting shaft 43 to extend, and the two sides of the end of the drive mechanism are provided with limit posts 13 that limit their positions. A number of limit plates 10 are arranged on both sides of the middle part, and one end of each limit column 13 is provided with a protruding end. The driving mechanisms are connected into a whole, so that the overall strength of the driving axle is improved, and the limiting column 13 and the limiting plate 10 can limit the installation of the driving mechanism to ensure the stability of the structure.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a two crawler chassis systems that drive control of electronic speed reduction, includes action wheel (44), thrust wheel (7), leading wheel (8), track (5), running gear and overspeed device tensioner, action wheel (44), thrust wheel (7), leading wheel (8) butt joint respectively on running gear, the butt joint of action wheel (44) inner sets up power assembly, the running gear upper end is still connected and is set up chassis frame (1), its characterized in that: the power assembly comprises two groups of driving mechanisms (4) which independently output power, and the two driving mechanisms (4) are respectively butted with driving wheels (44) at two sides to output power; each driving mechanism (4) respectively comprises a motor (41) and a speed reducer (42) which are fixedly connected with the chassis frame (1), the motor (41) is connected with a power supply module for supplying power, the output end of the motor is in butt joint with the speed reducer (42), the output end of the speed reducer (42) is connected with a connecting shaft (45), and the connecting shaft (45) is connected with a driving wheel (44) on the corresponding side.

2. The crawler chassis system controlled by the electric speed reduction double-drive as claimed in claim 1, wherein: the upper end of the front part of the chassis frame (1) is connected with a headstock (2), the middle part of the adjacent end of the headstock (2) and the chassis frame (1) is provided with a mounting groove (3), and a power supply module is arranged in the mounting groove (3); the output shaft of the motor (41) is horizontally arranged in the traveling direction of the crawler, the speed reducers (42) are matched and butted at the end part of the output shaft of the motor (41), the output ends of the speed reducers are vertically arranged relative to the output shaft of the motor (41), and the connecting shafts (43) connected with the two speed reducers (42) are coaxially and concentrically arranged.

3. The crawler chassis system controlled by the electric speed reduction double-drive as claimed in any one of claims 1 to 2, wherein: the two driving mechanisms (4) are fixedly connected into a whole in a butt joint mode, and the speed reducer (42) is a bevel gear-bevel gear speed reducer.

4. The crawler chassis system controlled by the electric speed reduction double-drive as claimed in claim 3, wherein: it is adjacent connect into an organic whole through connecting axle (45) between speed reducer (42), connecting axle (45) include spliced pole (451), and the equal fixedly connected with flange (452) in spliced pole (451) both ends, and speed reducer (42) are kept away from one side of output and are installed connection pad (46), through bolt fixed connection, both sides between connection pad (46) and flange (452) the cell body that supplies axis body (47) to insert to close the setting is seted up in flange (452) middle part, and inner ring (453) is connected in the cell body internal rotation.

5. The crawler chassis system controlled by the electric speed reduction double-drive as claimed in claim 3, wherein: the chassis frame (1) upper end is equipped with PMKD, PMKD upper end can cooperate to set up and control platform and cooperation car hopper.

6. The crawler chassis system controlled by the electric speed reduction double-drive as claimed in claim 4, wherein: the inner ring (453) is matched with the shaft body (47) in shape and size.

7. The crawler vehicle chassis system with electric deceleration and double-drive control as claimed in claim 3, wherein: the power assembly outside is provided with the installation box, and the installation box includes box (11) and closing cap (12), box (11) are inside to be separated through parting bead (6), and the inside both sides of box (11) are located respectively to two actuating mechanism, and the cell body that supplies connecting axle (43) to stretch out is seted up to box (11) both sides, actuating mechanism's tip both sides are provided with spacing post (13) to its spacing, and actuating mechanism's middle part both sides are provided with a plurality of limiting plate (10).

8. The crawler chassis system controlled by the electric speed reduction double-drive as claimed in claim 5, wherein: screw holes (9) are formed in the upper end of each limiting column (13) and the upper surface of each partition strip (6), the corresponding screw holes (9) on the sealing cover (12) are sequentially formed, and the screw holes are connected with the corresponding screw holes (9) through bolts.

9. The electric deceleration double-drive control tracked vehicle chassis system according to claim 8, wherein: one end of each limiting column (13) is provided with a protruding end, and the protruding ends are arranged on the side face of the driving mechanism (4) for limiting.

10. The crawler chassis system controlled by the electric deceleration double-drive as claimed in any one of claims 4 to 9, wherein: the infrared sensor is installed at the front end of the headstock (2) and the rear end of the fixed base plate (1), the controller, the speed sensor and the GPS positioner are installed inside the headstock (2), and the controller, the infrared sensor, the speed sensor, the GPS positioner and the driving mechanism are electrically connected.

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