Vehicle body structure of crawler unmanned vehicle

Abstract

The utility model relates to the technical field of caterpillar band unmanned vehicles, in particular to a vehicle body structure of a caterpillar band unmanned vehicle, which comprises a first vehicle frame and a second vehicle frame, the first vehicle frame and the second vehicle frame are symmetrically arranged, and retainers are fixedly arranged outside the two sides of the first vehicle frame and the two sides of the second vehicle frame. Loading wheels are movably mounted below the middle part and the left side of the retainer; driving wheels are arranged on the outer portions of the two sides of the second vehicle frame, and a driving mechanism is arranged between the driving wheels and the second vehicle frame. According to the utility model, the speed reducer and the motor are mounted through the mounting groove, so that the force of a power system is better dispersed and buffered in the transmission process, and the direct action on a vehicle body is reduced, thereby effectively avoiding the plastic deformation of the vehicle body caused by the force of the power system, prolonging the service life of the vehicle body and reducing the maintenance cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crawler unmanned vehicle technical field, concretely is a crawler unmanned vehicle's vehicle body structure. BACKGROUND

[0002] With the increasing demand of intelligent equipment in various industries, the application of crawler unmanned vehicle in intelligent robot equipment is increasingly widespread, and most of the crawler chassis configurations are heavy load, engineering load type chassis, and the self weight is about 100-500kg, the traditional chassis mostly adopts fuel driving, and the influence of the self weight on the endurance time is not outstanding, and most of the unmanned intelligent equipment is mainly electric driving, and the self weight has a relatively direct influence on the endurance time, the structure of the vehicle body is as simple as possible to reduce the manufacturing cost and improve the popularity.

[0003] The existing crawler unmanned vehicle body is mainly a box type vehicle body, and the power system mounting seat box is arranged on the two side walls, when the crawler is tensioned or when the vehicle is running and is impacted by the ground, the power system will transmit these forces to the vehicle body box wall, causing plastic deformation of the vehicle body. The two side load wheels are mostly cantilever structures, and the cantilever shaft will not be damaged when passing through a flat road, and permanent deformation and failure of the axle are easily caused when passing through a rugged road. SUMMARY

[0004] The utility model aims at providing a crawler unmanned vehicle's vehicle body structure to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A crawler unmanned vehicle's vehicle body structure comprises

[0007] Frame one and frame two, the frame one and frame two are symmetrically arranged, and a retainer is fixedly installed on the two outer sides of the frame one and frame two, a load wheel is movably installed below the middle and the left side of the retainer;

[0008] Driving wheels are arranged on the two outer sides of the frame two, and a driving mechanism is arranged between the driving wheels and the frame two;

[0009] A driven wheel is arranged inside one end of the retainer close to the frame one, and a tensioning mechanism is arranged between the driven wheel and the retainer;

[0010] A crawler body is arranged outside the driving wheels, load wheels and driven wheels.

[0011] Preferably, the driving mechanism comprises mounting slots, mounting slots are arranged at both ends of the second frame, a reducer is arranged in the mounting slot, a motor is arranged at the tail of the reducer, the output shaft of the motor is connected with the input shaft of the reducer, and the output shaft of the reducer is fixedly connected with the driving wheel.

[0012] Preferably, the tensioning mechanism comprises a fixing frame, the fixing frame is arranged outside the holding frame close to one end of the first frame, the driven wheel is movably connected with the holding frame through the rear wheel shaft, and the fixing frame is provided with a tensioner between the fixing frame and the rear wheel shaft.

[0013] Preferably, the right end of the tensioner is sleeved with the rear wheel shaft, and the left end of the tensioner is threadedly connected with an adjusting nut one penetrating through the fixing frame.

[0014] Preferably, an adjusting nut two is threadedly connected outside the tensioner and close to the right side of the fixing frame.

[0015] Preferably, the end of the rear wheel shaft is fixedly connected with a hexagonal shaft head penetrating through the tensioner.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The track unmanned vehicle body structure, through the installation groove, the reducer and the motor are installed, so that the power system force is better dispersed and buffered in the transmission process, the direct action on the vehicle body is reduced, thereby effectively avoiding the plastic deformation of the vehicle body due to the force of the power system, prolonging the service life of the vehicle body and reducing the maintenance cost.

[0018] 2. The track unmanned vehicle body structure, through the tensioning mechanism, the tensioning degree of the track body can be accurately adjusted, so that it is always kept in a suitable range, the length of the tensioner can be flexibly adjusted through the adjusting nut one and the adjusting nut two, so that the accurate control of the track tensioning degree is realized, and the track is always kept in the best working state. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole front view structure schematic diagram of the utility model;

[0020] Figure 2 It is a whole explosion structure schematic diagram of the utility model;

[0021] Figure 3 It is a tensioner installation structure schematic diagram of the utility model;

[0022] Figure 4 It is a hexagonal shaft head structure schematic diagram of the utility model.

[0023] In the figure: 1, frame one; 2, frame two; 3, retainer; 4, load wheel; 5, drive wheel; 6, driven wheel; 7, track body; 8, mounting groove; 9, speed reducer; 10, motor; 11, fixed frame; 12, rear axle; 13, tensioner; 14, adjusting nut one; 15, adjusting nut two; 16, hexagonal shaft head. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] As Figures 1-4 shown, a technical scheme provided by the utility model comprises:

[0026] A track unmanned vehicle body structure, comprising frame one 1 and frame two 2, frame one 1 and frame two 2 are symmetrically arranged, the retainer 3 is fixedly installed on both sides of the outer part of frame one 1 and frame two 2, the load wheel 4 is movably installed below the middle part and the left side of the retainer 3, the drive wheel 5 is arranged on both sides of the outer part of frame two 2, the drive mechanism is arranged between the drive wheel 5 and frame two 2, the drive mechanism comprises the mounting groove 8, the mounting groove 8 is arranged at both ends of frame two 2, the speed reducer 9 is arranged in the inside of the mounting groove 8, the motor 10 is arranged at the tail of the speed reducer 9, the output shaft of the motor 10 is connected with the input shaft of the speed reducer 9, the output shaft of the speed reducer 9 is fixedly connected with the drive wheel 5, and the track body 7 is arranged on the outside of the drive wheel 5, the load wheel 4 and the driven wheel 6.

[0027] In the embodiment, the speed reducer 9 and the motor 10 are installed through the mounting groove 8, so that the force of the power system is better dispersed and buffered in the transmission process, the direct action on the vehicle body is reduced, the plastic deformation of the vehicle body due to the force of the power system is effectively avoided, the service life of the vehicle body is prolonged, and the maintenance cost is reduced.

[0028] Further, the load wheel 4 is installed on the retainer 3, which can provide better support and stability for the load wheel 4, when the unmanned vehicle passes through rugged road surface, the impact force received by the load wheel 4 can be dispersed and absorbed through the retainer 3, the pressure borne by the axle is reduced, the risk of permanent deformation and failure of the axle is reduced, and the reliability and stability of the unmanned vehicle are improved.

[0029] As Figure 2 and Figure 4As shown, the inner end of the holder 3 close to the frame 1 is provided with a driven wheel 6, and a tensioning mechanism is arranged between the driven wheel 6 and the holder 3, which includes a fixed frame 11 arranged outside the inner end of the holder 3 close to the frame 1, and the driven wheel 6 is movably connected with the rear axle 12 between the driven wheel 6 and the holder 3, and the right end of the tensioner 13 is sleeved with the rear axle 12, and the left end of the tensioner 13 penetrates the fixed frame 11 and is threadedly connected with the adjusting nut 14, and the adjusting nut 15 is threadedly connected outside the tensioner 13 and close to the right side of the fixed frame 11, and the end of the rear axle 12 penetrates the tensioner 13 and is fixedly connected with the hexagonal shaft head 16.

[0030] In this embodiment, the tensioning mechanism can accurately adjust the tension of the track body 7, so that it is always maintained within a suitable range. The appropriate tension is the key to the normal operation of the track. If the track is too loose, it is easy to slip when the driving wheel 5 rotates, which reduces the power transmission efficiency and affects the driving speed and power performance of the unmanned vehicle. If the track is too tight, it will increase the friction between the parts and accelerate the wear of the parts, and also consume more energy. For example, if the track tension is not appropriate when the unmanned vehicle is performing a long-distance transportation task, it may reduce the transportation efficiency and even cause failure to complete the task. The tensioning mechanism can flexibly adjust the length of the tensioner 13 through the adjusting nut 14 and the adjusting nut 15, so as to accurately control the tension of the track and ensure that the track is always in the best working state.

[0031] Working principle: The motor 10 serves as a power source. When the motor 10 starts, its output shaft begins to rotate. Since the output shaft of the motor 10 is connected with the input shaft of the speed reducer 9, the rotation speed and torque output by the motor 10 are transmitted to the speed reducer 9. The speed reducer 9 reduces the rotation speed and increases the torque to meet the power requirements of the driving wheel 5. After the speed reducer 9 reduces the speed and increases the torque, its output shaft drives the driving wheel 5 fixedly connected therewith to rotate. The rotation of the driving wheel 5 drives the track body 7 to move, thereby providing power for the forward or backward movement of the entire unmanned vehicle. The driven wheel 6 arranged inside the inner end of the holder 3 close to the frame 1 is movably connected with the holder 3 through the rear axle 12, the right end of the tensioner 13 is sleeved with the rear axle 12, the left end penetrates the fixed frame 11 and is threadedly connected through the adjusting nut 14, and the adjusting nut 15 is threadedly connected outside the tensioner 13 and close to the right side of the fixed frame 11. When it is necessary to adjust the tension of the track body 7, the effective length of the tensioner 13 can be changed by rotating the adjusting nut 14 and the adjusting nut 15, thereby pushing or pulling the rear axle 12, so that the position of the driven wheel 6 changes, and the tension of the track body 7 is adjusted.

[0032] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A chassis structure for a tracked unmanned vehicle, characterized in that: include The first frame (1) and the second frame (2) are symmetrically arranged. A retainer (3) is fixedly installed on both sides of the first frame (1) and the second frame (2). A load-bearing wheel (4) is movably installed on the lower middle part and the lower left side of the retainer (3). Drive wheels (5) are provided on both sides of the outer side of the frame two (2), and a drive mechanism is provided between the drive wheels (5) and the frame two (2); A driven wheel (6) is provided inside the end of the cage (3) near the frame (1), and a tensioning mechanism is provided between the driven wheel (6) and the cage (3); Track body (7) is provided on the outside of the drive wheel (5), road wheel (4) and driven wheel (6).

2. The vehicle body structure of a tracked unmanned vehicle according to claim 1, characterized in that: The drive mechanism includes a mounting slot (8), and mounting slots (8) are provided at both ends of the frame (2). A reducer (9) is provided inside the mounting slot (8), and a motor (10) is provided at the tail of the reducer (9). The output shaft of the motor (10) is connected to the input shaft of the reducer (9), and the output shaft of the reducer (9) is fixedly connected to the drive wheel (5).

3. The vehicle body structure of a tracked unmanned vehicle according to claim 1, characterized in that: The tensioning mechanism includes a fixed frame (11), which is provided on the outside of one end of the retainer (3) near the frame (1). The driven wheel (6) is movably connected to the retainer (3) via the rear wheel axle (12). A tensioner (13) is provided between the fixed frame (11) and the rear wheel axle (12).

4. The vehicle body structure of a tracked unmanned vehicle according to claim 3, characterized in that: The right end of the tensioner (13) is sleeved with the rear wheel axle (12), and the left end of the tensioner (13) is threaded through the fixing frame (11) and connected to an adjusting nut (14).

5. The vehicle body structure of a tracked unmanned vehicle according to claim 4, characterized in that: An adjusting nut two (15) is threadedly connected to the outside of the tensioner (13) and near the right side of the fixing frame (11).

6. The vehicle body structure of a tracked unmanned vehicle according to claim 5, characterized in that: The end of the rear wheel axle (12) is fixedly connected to a hexagonal axle head (16) through the tensioner (13).

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