阅读说明：本技术 一种牵引车 (Tractor ) 是由 游斌弟 徐勇 于 2021-11-04 设计创作，主要内容包括：本发明提供了一种牵引车,包括车架总成、动力总成、传动总成和控制系统,其特征在于,所述的动力总成设置在车架总成上且包括第一分动力系统和第二分动力系统,第一分动力系统和第二分动力系统的输出轴设置方向相反且均指向所述牵引车的外侧,所述传动总成包括第一传动系统和第二传动系统,第一传动系统和第二传动系统分别由第一分动力系统和第二分动力系统驱动。采用本发明的技术方案,牵引简单灵活、省时省力、移动距离不受限制,具有广阔的市场应用前景。(The invention provides a tractor which comprises a frame assembly, a power assembly, a transmission assembly and a control system and is characterized in that the power assembly is arranged on the frame assembly and comprises a first power dividing system and a second power dividing system, output shafts of the first power dividing system and the second power dividing system are arranged in opposite directions and point to the outer side of the tractor, the transmission assembly comprises a first transmission system and a second transmission system, and the first transmission system and the second transmission system are driven by the first power dividing system and the second power dividing system respectively. By adopting the technical scheme of the invention, the traction is simple and flexible, the time and the labor are saved, the moving distance is not limited, and the invention has wide market application prospect.)

1. The utility model provides a tractor, includes frame assembly, power assembly, transmission assembly and control system, its characterized in that, power assembly set up on frame assembly and include first branch driving system and second branch driving system, the output shaft of first branch driving system and second branch driving system sets up opposite direction and all points to the outside of tractor, transmission assembly includes first transmission system and second transmission system, and first transmission system and second transmission system are divided driving system drive by first branch driving system and second respectively.

2. The tractor according to claim 1, wherein the first transmission system includes a driving wheel, a front driven wheel, a front supporting shaft, a rear driven wheel, a rear supporting shaft, a front traveling wheel and a rear traveling wheel, an output shaft of the first sub-power system is connected with the driving wheel, the driving wheel is connected with the front driven wheel through a first meshing part, the front driven wheel is connected with the front traveling wheel, the front traveling wheel is supported by the front supporting shaft fixed on the frame assembly, the driving wheel is connected with the rear driven wheel through a second meshing part, the rear driven wheel is connected with the rear traveling wheel, the rear traveling wheel is supported by the rear supporting shaft fixed on the frame assembly, and the second transmission system and the first transmission system are arranged in a left-right symmetrical manner and have the same transmission mode.

3. The tractor according to claim 2, wherein the frame assembly is designed to have a hollow structure, and includes four independent spaces which are arranged in front of and behind each other and are relatively closed, wherein a first power distribution system and a second power distribution system are respectively installed in two spaces located in the middle, a structure forming the front space is fixedly connected with the front support shaft, a structure forming the rear space is fixedly connected with the rear support shaft, and the first power distribution system and the second power distribution system both adopt a structural form that a motor is connected with a planetary reducer through a coupling.

4. The tractor of claim 3, wherein the two spaces in the middle portion are arranged in a configuration that is identical and in opposite directions, the front and rear spaces are identical in configuration and have a width that is approximately half the width of the middle space, and the two spaces in the middle portion are offset in the left-right direction by a small distance to make the width dimension of the entire tractor more compact.

5. The tractor of claim 3 or 4, wherein the front road wheels comprise a front first road wheel and a front second road wheel, the front driven wheels are positioned between the front first road wheel and the front second road wheel and rigidly connected with the front first road wheel and the front second road wheel through integrally arranged flanges, respectively, the front first road wheel and the front second road wheel are matched with the front support shaft through rolling bearings, the rear road wheels comprise a rear first road wheel and a rear second road wheel, the rear driven wheels are positioned between the rear first road wheel and the rear second road wheel and rigidly connected with the rear first road wheel and the rear second road wheel through integrally arranged flanges, respectively, and the rear first road wheel and the rear second road wheel are matched with the rear support shaft through rolling bearings.

6. The tractor of claim 5, wherein the first transmission system further comprises a frame extension plate and an anti-cantilever side plate, the frame extension plate comprises an upper plate and a side plate which are integrally arranged, the upper plate is fixedly connected with the frame assembly, the anti-cantilever side plate of the first transmission system comprises two, one end of the anti-cantilever side plate is respectively connected with the front part and the rear part of the frame extension plate side plate, the other end of the anti-cantilever side plate is respectively fixedly connected with the front supporting shaft and the rear supporting shaft, the second transmission system also comprises the frame extension plate and the anti-cantilever side plate, and the structure and the connection mode of the second transmission system are the same as those of the first transmission system.

7. The tractor according to claim 6, wherein the front first traveling wheel, the front second traveling wheel, the rear first traveling wheel and the rear second traveling wheel are crawler wheels, the tractor is driven to travel by a crawler belt sleeved on and engaged with the crawler wheels, the outer sides of all the crawler wheels are further provided with force-bearing tension wheels, the force-bearing tension wheels are respectively sleeved on the front support shaft and the rear support shaft by sliding bearings, and the outer diameters of the force-bearing tension wheels are larger than the diameters of the root parts of the crawler wheels, so that the crawler belt is tensioned while the crawler wheels are replaced to bear most of external loads.

8. The tractor according to claim 7, wherein a flange plate for axially limiting the track is arranged on the outer side of the bearing tension wheel, a track limiting plate is fixedly arranged on the middle upper portion of the frame extension plate side plate, and a plurality of ground gripping tension wheels are rotatably arranged between the lower portion of the frame extension plate side plate and the frame assembly to prevent the tractor from scraping the chassis when passing through a rugged road.

9. The tractor according to claim 3, wherein the driving wheel, the front driven wheel and the rear driven wheel are all synchronous pulleys, the first meshing member and the second meshing member are synchronous belts, a shoulder separating the two synchronous belts is arranged in the middle of the driving wheel, and a synchronous belt limiting plate is further arranged outside the driving wheel.

10. The tractor of claim 9, wherein the control system comprises a main control device mounted on the upper plate of the frame extension plate and a remote controller wirelessly connected thereto, the motor is connected to the main control device through a driver, the driver is mounted in the rear space of the frame assembly, the motor and the main control device are powered by two modes, one is powered by an external power source in a normal state, the other is powered by a storage battery in an emergency state, the storage battery is placed in the front space of the frame assembly when the storage battery is used for supplying power, and the frame assembly is further provided with a connecting device connected to the tractor.

Technical Field

The invention relates to a tractor, in particular to a multifunctional remote control tractor of a trailer type motor home. When the parking place of the pull type caravan needs to be adjusted, the tractor can be controlled through the remote control device to guide the caravan to reach the designated parking place.

Background

Along with the increasing improvement of quality of life to and the popularity of long-term self-driving trip, open-air camping of long journey, pull-type car as a house because it is compared in the bigger inner space of self-propelled car as a house and more comfortable inside sets up and becomes consumers' first choice widely, but pull-type car as a house self does not possess driving system, needs extra vehicle to pull and travels.

Due to the fact that the pull type caravan is inconvenient to butt with the front car, a matched traction device needs to be designed to guide the caravan to reach an appointed parking place for butt joint. The mainstream draw gear in the existing market is the leading wheel, but because the inertia of pull-type car as a house is big, need consume a large amount of manpowers when using the leading wheel, and the migration distance is restricted, and most leading wheels do not possess the auto-lock ability, and the use scene is restricted.

Disclosure of Invention

In view of the above, the invention designs a multifunctional remote control tractor for a trailer type caravan, which can solve the problems of difficult traction, time and labor consumption, limited moving distance, incapability of self-locking and the like in the prior art, and in order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a tractor, includes frame assembly, power assembly, transmission assembly and control system, its characterized in that, power assembly set up on frame assembly and include first branch driving system and second branch driving system, the output shaft of first branch driving system and second branch driving system sets up opposite direction and all points to the outside of tractor, transmission assembly includes first transmission system and second transmission system, and first transmission system and second transmission system are divided driving system drive by first branch driving system and second respectively.

Furthermore, the first transmission system comprises a driving wheel, a front driven wheel, a front supporting shaft, a rear driven wheel, a rear supporting shaft, a front travelling wheel and a rear travelling wheel, an output shaft of the first power dividing system is connected with the driving wheel, the driving wheel is connected with the front driven wheel through a first meshing part, the front driven wheel is connected with the front travelling wheel, the front travelling wheel is supported by the front supporting shaft fixedly arranged on the frame assembly, the driving wheel is connected with the rear driven wheel through a second meshing part, the rear driven wheel is connected with the rear travelling wheel, the rear travelling wheel is supported by the rear supporting shaft fixedly arranged on the frame assembly, and the second transmission system and the first transmission system are arranged in bilateral symmetry and have the same corresponding transmission mode.

Furthermore, the frame assembly adopts a hollow structure design, and comprises four independent spaces which are arranged in the front and the back and are relatively closed, wherein a first power dividing system and a second power dividing system are respectively installed in the two spaces positioned in the middle part, the structure forming the front space is fixedly connected with the front supporting shaft, the structure forming the rear space is fixedly connected with the rear supporting shaft, and the first power dividing system and the second power dividing system both adopt a structural form that the motor is connected with the planetary reducer through a coupling.

Further, the two spaces of the middle portion are arranged in a manner that the structures are the same and the directions are opposite, the front space and the rear space are the same in structure and the widths thereof are approximately half of the width of the middle space, and the two spaces of the middle portion are offset by a small distance in the left-right direction, so that the width dimension of the whole tractor is more compact.

Furthermore, the front travelling wheels comprise front first travelling wheels and front second travelling wheels, the front driven wheels are positioned between the front first travelling wheels and the front second travelling wheels and are respectively and rigidly connected with the front first travelling wheels and the front second travelling wheels through integrally arranged flanges, the front first travelling wheels and the front second travelling wheels are matched with the front supporting shaft through rolling bearings, the rear travelling wheels comprise rear first travelling wheels and rear second travelling wheels, the rear driven wheels are positioned between the rear first travelling wheels and the rear second travelling wheels and are respectively and rigidly connected with the rear first travelling wheels and the rear second travelling wheels through integrally arranged flanges, and the rear first travelling wheels and the rear second travelling wheels are matched with the rear supporting shaft through rolling bearings.

Furthermore, the first transmission system also comprises a frame extension plate and a cantilever-proof side plate, the frame extension plate comprises an upper plate and a side plate which are integrally arranged, the upper plate is fixedly connected with the frame assembly, the cantilever-proof side plates of the first transmission system are two, one end of each cantilever-proof side plate is respectively connected with the front part and the rear part of the frame extension plate side plate, the other end of each cantilever-proof side plate is fixedly connected with the front supporting shaft and the rear supporting shaft, the second transmission system also comprises the frame extension plate and the cantilever-proof side plate, and the structure and the connection mode of the second transmission system are the same as those of the first transmission system.

Furthermore, the front first walking wheel, the front second walking wheel, the rear first walking wheel and the rear second walking wheel are crawler wheels, the tractor is driven to walk by a crawler belt sleeved on the crawler wheels and meshed with the crawler wheels, force bearing tension wheels are further arranged on the outer sides of all the crawler wheels, the force bearing tension wheels are respectively sleeved on the front supporting shaft and the rear supporting shaft through sliding bearings, and the diameters of the force bearing tension wheels are larger than the diameters of the root parts of the gear teeth of the crawler wheels, so that the crawler wheels are replaced to bear most of external loads while the crawler belt is tensioned.

Furthermore, a flange plate for axially limiting the crawler is arranged on the outer side of the force bearing tension wheel, a crawler limiting plate is fixedly arranged at the middle upper part of the frame extension plate side plate, and a plurality of ground grabbing tension wheels are rotatably arranged between the lower part of the frame extension plate side plate and the frame assembly, so that the tractor is prevented from rubbing the chassis when passing through a rugged road.

Furthermore, the driving wheel, the front driven wheel and the rear driven wheel are synchronous belt wheels, the first meshing part and the second meshing part are synchronous belts, a shaft shoulder for separating the two synchronous belts is arranged in the middle of the driving wheel, and a synchronous belt limiting plate is further arranged on the outer side of the driving wheel.

Furthermore, the control system comprises a main control device arranged on the upper plate of the frame extension plate and a remote controller wirelessly connected with the main control device, the motor is connected with the main control device through a driver, the driver is arranged in the rear space of the frame assembly, the power supply modes of the motor and the main control device are set into two modes, one mode is power supply from an external power supply in a conventional state, the other mode is power supply from a storage battery in an emergency state, when the storage battery is adopted for power supply, the storage battery is placed in the front space of the frame assembly, and in addition, the frame assembly is also provided with a connecting device connected with a towed vehicle.

Compared with the prior art, the invention has the following obvious advantages:

1. the remote controller controls the tractor to pull the pull type recreational vehicle to move to the target position, manpower is liberated, and the efficiency and the convenience of moving the recreational vehicle are improved.

2. The driving mode that two groups of stepping motors provide power and the power is transmitted to four driving wheels through four groups of synchronous belt wheels and synchronous belts makes full use of the performance advantage of the flexible transmission part in absorbing vibration, so that the transmission process is more stable and the noise is less.

3. The crawler wheels and the crawler belts are used for improving the traction efficiency and the climbing capacity of the tractor, so that the tractor has stronger adaptability to the environment and can be suitable for various complex terrain environments.

4. The controller can be used for adjusting the rotating speed of the motor, so that the stability of the pull type motor home in the moving process can be ensured, and the impact on the shifter supporting leg in the moving process of the motor home is reduced; the controller can also realize the function of differential steering of the two groups of motors, so that the tractor moves more flexibly.

5. The design of the frame extension plate and the cantilever-preventing side plate forms a closed force loop, and the stress condition of the support shaft of the tractor in the operation process is improved, so that the operation reliability of the tractor is ensured.

6. The ground gripping tensioning wheel is adopted to ensure that the shifter can also have higher reliability when running in a rugged environment, the chassis cannot be damaged, the flange plate and the limiting plate are adopted, the axial sideslip of the crawler in the steering process can be effectively prevented, and the safety in the running process of the tractor is improved.

7. Two different power supply modes are provided, and two different use requirements of normal work and emergency use are met.

Drawings

FIG. 1 is a schematic view of the general construction of the present invention (with one track removed);

FIG. 2 is a schematic view of the drive assembly of the present invention;

FIG. 3 is a schematic structural view of the frame assembly of the present invention;

FIG. 4 is a schematic illustration of the rear driven wheel shafting configuration of the present invention;

FIG. 5 is a schematic structural view of the frame extension plate of the present invention;

figure 6 is a schematic view of the ground gripping tensioner of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 6, the truck includes: the tractor comprises a frame assembly 1, a power assembly 2, a transmission assembly 3 and a control system 4, wherein the power assembly 2 is arranged on the frame assembly 1 and comprises a first power dividing system 2-1 and a second power dividing system 2-2, the first power dividing system 2-1 and the second power dividing system 2-2 both adopt a structural form that motors are connected with speed reducers through shaft couplings, the motors can be stepping motors or servo motors, the speed couplings are preferably plum couplings, the speed reducers are preferably planetary speed reducers, output shafts of the first power dividing system 2-1 and the second power dividing system 2-2 are arranged in opposite directions and point to the outer sides of the tractor, the transmission assembly 3 comprises a first transmission system 3-1 and a second transmission system 3-2, an output shaft of the first power dividing system 2-1 is connected with the first transmission system 3-1, the output shaft of the second power dividing system 2-2 is connected with a second transmission system 3-2.

The first transmission system 3-1 comprises a driving wheel 3-1-1, a front driven wheel 3-1-2, a front supporting shaft 3-1-3, a rear driven wheel 3-1-4, a rear supporting shaft 3-1-5, a front traveling wheel 3-1-6 and a rear traveling wheel 3-1-7, an output shaft of the first sub-power system 2-1 is connected with the driving wheel 3-1-1, the driving wheel 3-1-1 is connected with the front driven wheel 3-1-2 through a first meshing part 3-1-8, the front driven wheel 3-1-2 is connected with the front traveling wheel 3-1-6, the front traveling wheel 3-1-6 is supported by the front supporting shaft 3-1-3 fixedly arranged on the frame assembly 1, the driving wheel 3-1-1 is connected with the rear driven wheel 3-1-4 through a second meshing part 3-1-9, the rear driven wheel 3-1-4 is connected with the rear walking wheel 3-1-7, the rear walking wheel 3-1-4 is supported by a rear supporting shaft 3-1-5 fixedly arranged on the frame assembly 1, and the second transmission system 3-2 and the first transmission system 3-1 are arranged in bilateral symmetry and have the same corresponding transmission mode.

The frame assembly 1 is designed by adopting a hollow structure and comprises four independent spaces 1-1, 1-2, 1-3 and 1-4 which are arranged in front and back and are relatively closed, wherein a first power dividing system 2-1 and a second power dividing system 2-1 are respectively arranged in the two spaces 1-2 and 1-3 positioned in the middle, one end of a front supporting shaft 3-1-3 is arranged in the structure forming the front space 1-1, one end of a rear supporting shaft 3-1-5 is arranged in the structure forming the rear space 1-4, and the front supporting shaft 3-1-3 and the rear supporting shaft 3-1-5 do not rotate along with a front driven wheel 3-1-2 and a rear driven wheel 3-1-4.

The two spaces 1-2 and 1-3 of the middle part are arranged in the same structure and in opposite directions, the front space 1-1 and the rear space 1-4 are identical in structure and have a width which is approximately half of the width of the middle spaces 1-2 and 1-3, and in addition, in order to make the width dimension of the whole tractor more compact and optimize the transmission layout, the two spaces 1-2 and 1-3 of the middle part are staggered by a small distance in the left-right width direction.

The front traveling wheels 3-1-6 of the front traveling wheels comprise front first traveling wheels 3-1-6-1 and front second traveling wheels 3-1-6-2, the front driven wheels 3-1-2 are positioned between the front first traveling wheels 3-1-6-1 and the front second traveling wheels 3-1-6-2 and are respectively and rigidly connected with the front first traveling wheels 3-1-6-1 and the front second traveling wheels 3-1-6-2 through integrally arranged flanges, the front first traveling wheels 3-1-6-1 and the front second traveling wheels 3-1-6-2 are matched with the front supporting shafts 3-1-3 through rolling bearings, and the rear traveling wheels 3-1-7 comprise rear first traveling wheels 3-1-7-1 and rear second traveling wheels 3-1-7-1 The rear driven wheel 3-1-7-2 is positioned between the rear first walking wheel 3-1-7-1 and the rear second walking wheel 3-1-7-2 and is respectively and rigidly connected with the rear first walking wheel 3-1-7-1 and the rear second walking wheel 3-1-7-2 through an integrally arranged flange, and the rear first walking wheel 3-1-7-1 and the rear second walking wheel 3-1-7-2 are matched with the rear support shaft 3-1-4 through a rolling bearing.

Furthermore, the first transmission system 3-1 further comprises a frame extension plate 3-3 and an anti-cantilever side plate 3-4, the frame extension plate 3-3 comprises an upper plate 3-3-1 and a side plate 3-3-2 which are integrally arranged, the upper plate 3-3-1 is fixedly connected with the frame assembly 1, the anti-cantilever side plate 3-4 of the first transmission system 3-1 comprises two, one end of the anti-cantilever side plate is respectively connected with the front part and the rear part of the frame extension plate side plate 3-3-2, the other end of the anti-cantilever side plate is respectively fixedly connected with a front supporting shaft 3-1-3 and a rear supporting shaft 3-1-5, the second transmission system 3-2 also comprises a frame extension plate and an anti-cantilever side plate, and the structure and the connection mode of the second transmission system are the same as those of the first transmission system.

Preferably, the front first walking wheel, the front second walking wheel, the rear first walking wheel and the rear second walking wheel are crawler wheels, the tractor is driven to walk by a crawler belt 3-5 sleeved on the crawler wheels and meshed with the crawler wheels, the outer sides of all the crawler wheels are also provided with force-bearing tensioning wheels 3-6, the force-bearing tensioning wheels 3-6 are respectively sleeved on the front supporting shafts 3-1-3 and the rear supporting shafts 3-1-5 through sliding bearings, so that the force-bearing tensioning wheels 3-6 can rotate relative to the front supporting shafts 3-1-3 and the rear supporting shafts 3-1-5, the diameters of the force-bearing tensioning wheels are larger than the diameters of the gear teeth at the root parts of the crawler wheels, and the crawler wheels are replaced to bear most of external loads while the crawler belt is tensioned.

Preferably, the outer side of the bearing tension wheel 3-6 is provided with a flange 3-7 for limiting the axial direction of the crawler belt, and the middle upper part of the frame extension plate side plate 3-3-2 is also fixedly provided with a crawler belt limit plate 3-8, the flange 3-7 is respectively fastened with the front support shaft 3-1-3 and the rear support shaft 3-1-5 through nuts and shaft shoulders, a plurality of ground gripping tension wheels 3-9 are rotatably arranged between the lower parts of the side plates 3-3-2 of the frame extension plates and the frame assembly 1 to prevent the tractor from scratching a chassis when passing through a rugged road, and the ground gripping tension wheels 3-9 comprise pin shafts 3-9-1 and rubber wheels 3-9-2 sleeved on the pin shafts, and are limited by structural space, and the structural size of the ground gripping tension wheels can be adjusted as required.

Preferably, the motor is a stepping motor, the driving wheel, the front driven wheel and the rear driven wheel are synchronous belt wheels, the first meshing part and the second meshing part are synchronous belts, shaft shoulders for separating the two synchronous belts are arranged in the middle of the driving wheel, and synchronous belt limiting plates are further arranged on the outer side of the driving wheel.

The control system 4 comprises a main control device 4-1 arranged on the upper plate of the frame extension plate and a remote controller (not shown in the figure) wirelessly connected with the main control device, the remote control mode is preferably infrared remote control, the motor is connected with the main control device 4-1 through a driver 2-3, the driver 2-3 is arranged in the rear space 1-4 of the frame assembly 1, the power supply modes of the motor and the main control device are set to be two, one is external power supply in a normal state, the other is storage battery power supply in an emergency state, when the storage battery power supply is adopted, a storage battery 5 is placed in the front space 1-1 of the frame assembly 1, and in addition, a connecting device 6 connected with a towed vehicle is further arranged on the frame assembly 1.

The working process is as follows: when a tractor needs to be used for dragging the trailer to reach a specified position through the connecting device, the remote controller is used for sending a moving instruction, such as a forward instruction, the moving instruction is sent in the form of an infrared signal and received by an infrared receiver of the main control device 4-1 on the tractor, and after the moving instruction is received, the main control device 4-1 controls the motor driver 2-3 to send a pulse signal to the stepping motor, so that the stepping motor is driven to rotate at a certain rotating speed. The power of the stepping motor is transmitted to the front and rear two groups of crawler wheel wheels through the planet wheel speed reducer and the two groups of synchronous belts, and then the whole tractor is driven to move forwards. The lowest part of the ground-gripping tension wheel 3-9 is lower than the chassis of the frame assembly by 5.5mm at least, when a micro obstacle is encountered, the ground gripping tension wheel 3-9 contacts the obstacle before the chassis, the fault obstacle cannot scratch the chassis, similarly, when the remote controller sends a steering instruction, the two stepping motors receive different pulse signals to realize differential, the tractor can turn, the crawler can be subjected to axial force during steering, the flanges 3-7 and the crawler limiting plates 3-8 can prevent the crawler from sliding axially during steering, meanwhile, the diameter of the outer diameter of the force-bearing tension wheel 3-6 is larger than the diameter of the root part of the wheel tooth of the track wheel, external load in the traction process is transferred to the frame assembly 1 through the supporting shaft by the force bearing tension wheel 3-6, and overlarge additional load borne by the track wheel is avoided.

Although the embodiments of the present invention have been described above, the contents of the embodiments are only for the convenience of understanding the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.