A teaching and training vehicle system

Abstract

The utility model provides a kind of teaching practical training vehicle system, including frame chassis;Steering system is set above the frame chassis, including steering gear and four axle drive connected with the steering gear;Four groups of wheels, symmetric and rotationally arranged on the side wall of the frame chassis support the frame chassis, and are connected with the four axle drive;Ladder, set in one end of frame chassis.Steering system is set above the frame chassis, and ladder is set in the end of frame chassis, so that students can climb ladder and observe the operation of steering system, which can achieve better teaching effect for teaching.And it is also convenient to maintain steering system.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle teaching technical field especially relates to a kind of teaching training vehicle systems. BACKGROUND

[0002] The teaching of vehicle in prior art is only to use demonstration version test bench, for example, teaching video is played using screen, it is difficult to deeply understand chassis structure and working principle of special vehicle, resulting in poor teaching quality. TECHNICAL CONTENT

[0003] Therefore, the utility model aims at providing a kind of teaching training vehicle system to solve or partially solve the problems in the background art.

[0004] Based on the above purpose, the utility model provides a kind of teaching training vehicle system, comprising:

[0005] Frame chassis;

[0006] Steering system, set on the frame chassis, including steering gear and four axle drive connected with the steering gear;

[0007] Four groups of wheels, symmetrically and rotationally set on the side wall of the frame chassis support the frame chassis, and are connected with the four axle drive;

[0008] Crawling ladder, set in one end of frame chassis.

[0009] Optionally, the frame chassis includes four-side frame and multiple mounting plates, which are arranged on the four-side frame and arranged at intervals.

[0010] Optionally, the four axle drive includes first axle drive, second axle drive, third axle drive and fourth axle drive connected with each other, the four groups of wheels include first group of wheels, second group of wheels, third group of wheels and fourth group of wheels, the first axle drive is connected with the first group of wheels, the second axle drive is connected with the second group of wheels, the third axle drive is connected with the third group of wheels, and the fourth axle drive is connected with the fourth group of wheels.

[0011] Optionally, the first bridge drive and the fourth bridge drive are consistent in structure, and the first bridge drive is connected with the steering gear through a steering drop arm, each bridge drive comprising a straight pull rod, a steering knuckle arm, a tie rod left arm, a tie rod, and a tie rod right arm, one end of the straight pull rod being connected with one end of the steering drop arm, the other end of the straight pull rod being connected with one end of the steering knuckle arm, the other end of the steering knuckle arm being connected with a corresponding wheel and one end of the tie rod left arm, the other end of the tie rod left arm being connected with one end of the tie rod, the other end of the tie rod being connected with one end of the tie rod right arm, the other end of the tie rod right arm being connected with a corresponding wheel, wherein the straight pull rod of the fourth bridge drive is connected with the steering drop arm through a plurality of joint arms.

[0012] Optionally, the first bridge drive and the fourth bridge drive each further comprise a power-assisted oil cylinder connected with a corresponding wheel through a pull rod.

[0013] Optionally, the second bridge drive and the third bridge drive are consistent in structure, and each bridge drive comprises a rotating shaft, both ends of the rotating shaft being connected with corresponding wheels.

[0014] Optionally, the training vehicle system further comprises a steering hydraulic system for controlling the power-assisted oil cylinders of the first bridge drive and the fourth bridge drive, the steering hydraulic system comprising a distribution valve, a control valve group, and a steering oil tank assembly, a first end of the distribution valve being connected with an inlet end of the power-assisted oil cylinder of the first bridge drive and an outlet end of the power-assisted oil cylinder of the fourth bridge drive, a second end of the distribution valve being connected with an outlet end of the power-assisted oil cylinder of the first bridge drive and an inlet end of the power-assisted oil cylinder of the fourth bridge drive, a third end and a fourth end of the distribution valve being connected with the control valve group respectively, and a fifth end of the distribution valve being connected with the steering oil tank assembly.

[0015] Optionally, a second end of the control valve group is connected with the steering oil tank assembly, and a fine oil filter assembly and a pump assembly are arranged between the second end of the control valve group and the steering oil tank assembly, the fine oil filter assembly being arranged adjacent to the control valve group, and the pump assembly being arranged adjacent to the steering oil tank assembly.

[0016] Optionally, the control valve group comprises a one-way back pressure valve and a flow stabilizing valve, the one-way back pressure valve being arranged adjacent to the distribution valve, and the flow stabilizing valve being arranged adjacent to the fine oil filter assembly.

[0017] From the above, it can be seen that the teaching practical training vehicle system provided by the utility model, including frame chassis, steering system, setting on the frame chassis, including steering gear and four bridge drive connected with the steering gear, four groups of wheels, symmetrically and rotatably setting on the side wall of the frame chassis to support the frame chassis and connected with the four bridge drive, ladder, setting on one end of the frame chassis. The steering system is set on the frame chassis, and the ladder is set on the end of the frame chassis, so that students can climb the ladder to observe the operation of the steering system, which can achieve better teaching effect for teaching. And it is also convenient to maintain the steering system. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the utility model or related technology, the following will briefly introduce the drawings needed to be used in the embodiment or related technology description, obviously, the drawings in the following description are only the embodiment of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0019] Figure 1 It is a teaching practical training vehicle system frame structure schematic diagram of the utility model embodiment;

[0020] Figure 2 It is a teaching practical training vehicle system overhead structure schematic diagram of the utility model embodiment;

[0021] Figure 3 It is a steering hydraulic system schematic diagram of the utility model embodiment;

[0022] Figure 4 It is a hydraulic winch system schematic diagram of the utility model embodiment.

[0023] In the drawings:

[0024] 01, frame chassis;02, driver seat;03, steering system;04, ladder;31, steering gear;32, steering vertical arm;33, straight pull rod;34, steering knuckle arm;35, transverse pull rod left arm;36, transverse pull rod;37, transverse pull rod right arm;38, connecting arm;39, power-assisted oil cylinder;1, power-assisted oil cylinder of first bridge drive;2, power-assisted oil cylinder of fourth bridge drive;3, distribution valve;4, control valve group;5, steady flow valve;6, fine oil filter assembly;7, pump assembly;8, coarse oil filter;9, steering oil tank assembly;10, auxiliary pump;11, check valve;12, check back pressure valve. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will be further described in detail in combination with specific embodiments and with reference to the drawings.

[0026] It should be noted that, unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be understood as having the common meaning in the field of the present application to which the embodiments of the present application pertain. The terms "first", "second", and similar terms used in the embodiments of the present application do not denote any order, quantity, or importance, but are merely used to distinguish different components. The terms "include", "contain", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms do not mean only physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are merely used to indicate relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships can also change accordingly.

[0027] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0028] As shown in Figure 1 , Figure 2 The present application provides a teaching practical vehicle system, comprising:

[0029] A vehicle frame chassis 01;

[0030] A steering system 03 is arranged above the vehicle frame chassis 01 and comprises a steering gear 31 and a four-axle drive connected with the steering gear 31.

[0031] Four sets of wheels are symmetrically and rotatably arranged on the side walls of the vehicle frame chassis 01 to support the vehicle frame chassis 01 and are connected with the four-axle drive.

[0032] A ladder 04 is arranged at one end of the vehicle frame chassis 01.

[0033] Specifically, the steering system 03 is arranged above the vehicle frame chassis 01, and a ladder 04 is arranged at the end of the vehicle frame chassis 01. In this way, students can climb the ladder 04 to observe the operation of the steering system 03, which can achieve better teaching effect for teaching. Moreover, it is also convenient to maintain the steering system 03.

[0034] In some embodiments, the vehicle frame chassis 01 comprises a four-sided frame and a plurality of mounting plates arranged on the four-sided frame at intervals.

[0035] Specifically, the vehicle frame chassis 01 comprises a four-sided frame and a plurality of mounting plates arranged on the four-sided frame at intervals. The plurality of mounting plates are arranged on the four-sided frame at intervals, so that the steering system 03 can be maintained through the gaps, and students can more intuitively observe the operation of the steering system 03, which can achieve better teaching effect for teaching.

[0036] In some embodiments, the four-bridge drive includes a first bridge drive, a second bridge drive, a third bridge drive, and a fourth bridge drive connected in series, the four groups of wheels include a first group of wheels, a second group of wheels, a third group of wheels, and a fourth group of wheels, the first bridge drive is connected with the first group of wheels, the second bridge drive is connected with the second group of wheels, the third bridge drive is connected with the third group of wheels, and the fourth bridge drive is connected with the fourth group of wheels.

[0037] Specifically, the structures of the first bridge drive, the second bridge drive, the third bridge drive, and the fourth bridge drive are as shown in Figure 2 The specific structures of the first bridge drive and the fourth bridge drive are shown in the figure (as shown in the dashed box in the figure), and the second bridge drive and the third bridge drive are shafts, which are not shown in the figure.

[0038] In some embodiments, as shown in Figure 2 The first bridge drive and the fourth bridge drive are consistent in structure, the first bridge drive is connected with the steering gear 31 through a steering drop arm 32, each bridge drive includes a straight pull rod 33, a steering knuckle arm 34, a cross pull rod left arm 35, a cross pull rod 36, and a cross pull rod right arm 37, one end of the straight pull rod 33 is connected with one end of the steering drop arm 32, the other end of the straight pull rod 33 is connected with one end of the steering knuckle arm 34, the other end of the steering knuckle arm 34 is connected with a corresponding wheel and one end of the cross pull rod left arm 35, the other end of the cross pull rod left arm 35 is connected with one end of the cross pull rod 36, the other end of the cross pull rod 36 is connected with one end of the cross pull rod right arm 37, and the other end of the cross pull rod right arm 37 is connected with a corresponding wheel, wherein the straight pull rod 33 of the fourth bridge drive structure is connected with the steering drop arm 32 through a plurality of joint arms 38.

[0039] Specifically, the straight pull rod 33 drives the steering knuckle arm 34 to rotate under the steering of the steering drop arm 32, the steering knuckle arm 34 drives the cross pull rod 36 to move, the cross pull rod 36 drives the cross pull rod left arm 35 and the cross pull rod right arm 37 to move, thereby driving the wheels to rotate, and completing the rotation action of the wheels. Wherein each structure can be rotatably fixed above the mounting plate on the chassis 01, so that students can more carefully observe the specific operation of each structure, and improve the learning experience of students.

[0040] In some embodiments, as shown in Figure 2 The first bridge drive and the fourth bridge drive each further include a power-assisted oil cylinder 39, and the power-assisted oil cylinder 39 is connected with a corresponding wheel through a pull rod.

[0041] Specifically, the power-assisted oil cylinder 39 can provide power assistance to the four-bridge drive under the control of the steering hydraulic system, so that the steering system 03 operates more smoothly.

[0042] In some embodiments, the second axle drive and the third axle drive are consistent in structure, each axle drive comprising a rotating shaft, both ends of the rotating shaft being connected with corresponding wheels.

[0043] For example, the first axle drive is a steering drive axle, the second axle drive is a through drive middle axle, the third axle drive is a simulated steering axle, and the fourth axle drive is a trailer carrying axle (with follow-up control). In particular, the fourth axle trailer carrying axle is different from other carrying axles in that it has a follow-up control function, that is, when the towing vehicle turns in a narrow place, it can realize partial reverse direction follow-up steering of the trailer, so that the trailer part can work at a smaller turning radius. The overall training vehicle system (training platform) can meet the learning of the structural principles and disassembly, fault diagnosis of all axle types of special vehicles below 60 tons.

[0044] In some embodiments, as shown in Figure 3 The training vehicle system further comprises a steering hydraulic system for controlling the auxiliary oil cylinders of the first axle drive and the fourth axle drive, the steering hydraulic system comprising: a distribution valve 3, a control valve group 4, and a steering oil tank, a first end of the distribution valve 3 being connected with an inlet end of the auxiliary oil cylinder 1 of the first axle drive and an outlet end of the auxiliary oil cylinder 2 of the fourth axle drive, a second end of the distribution valve 3 being connected with an outlet end of the auxiliary oil cylinder 1 of the first axle drive and an inlet end of the auxiliary oil cylinder 2 of the fourth axle drive, a third end and a fourth end of the distribution valve 3 being connected with the control valve group 4 respectively, and a fifth end of the distribution valve 3 being connected with the steering oil tank assembly 9.

[0045] In some embodiments, as shown in Figure 3 A second end of the control valve group 4 is connected with the steering oil tank assembly 9, a fine oil filter assembly 6 and a pump assembly 7 are arranged between the second end of the control valve group 4 and the steering oil tank assembly 9, the fine oil filter assembly 6 is arranged adjacent to the control valve group 4, and the pump assembly 7 is arranged adjacent to the steering oil tank assembly 9.

[0046] Specifically, the fine oil filter assembly 6 comprises a first fine oil filter and a second fine oil filter, the pump assembly 7 comprises a first pump and a second pump, the first fine oil filter is connected with the first pump, and the second fine oil filter is connected with the second pump, so that the oil in the steering oil tank assembly 9 is transmitted to the auxiliary oil cylinder 39 under the action of the pump assembly 7, and the impurities in the oil can be filtered under the action of the fine oil filter assembly 6, so that the auxiliary oil cylinder 39 can stably operate and the service life of the auxiliary oil cylinder 39 is increased.

[0047] In some embodiments, as shown in Figure 3 The control valve group 4 comprises a one-way back pressure valve 12 and a steady flow valve 5, the one-way back pressure valve 12 is arranged adjacent to the distribution valve 3, and the steady flow valve 5 is arranged adjacent to the fine oil filter assembly 6.

[0048] Specifically, the steady flow valve 5 of the control valve group 4 comprises a first end, a second end, a third end and a fourth end, the first end of the steady flow valve 5 is connected with the third end of the distribution valve 3, the second end of the steady flow valve 5 is connected with one end of the one-way back pressure valve 12, the other end of the one-way back pressure valve 12 is connected with the fourth end of the distribution valve 3, the third end of the steady flow valve 5 is connected with the first essential oil filter in the essential oil filter assembly 6, and the fourth end of the steady flow valve 5 is connected with the second essential oil filter in the essential oil filter assembly 6.

[0049] The utility model discloses a three -phase asynchronous motor can be used as power unit instead of engine, by the motor control switch of separate control, reduced the overall weight of the practical training rack, also saved the cost, can also make the practical training rack have more convenient position and watch the position of rack parts, and the practical teaching effect is remarkable.

[0050] The utility model discloses still can include the suspension system, the suspension system can adopt 60 tons level heavy equipment transport truck tractor suspension system, and the suspension system refers to the general name of all force transmission connecting devices between the frame and the axle, generally is by elastic element, shock absorber and guiding mechanism (force transmission device) three parts constitute. Its main task is to transmit all the force and moment between the wheel and the frame (or the car body) and to mitigate the impact load from the uneven road to the frame (or the car body), and to attenuate the vibration of the bearing system caused thereby. The front suspension of the equipment adopts the steel plate spring suspension. The front end adopts the lug, and the rear end adopts the slide plate structure form. Its elastic element steel plate spring is longitudinally arranged, and when the steel plate spring deforms under the load, there is relative sliding between the pieces to produce friction, which can promote the attenuation of the frame vibration. But the dry friction between the pieces will transmit the impact on the wheel to the frame to a great extent, that is, the ability of the suspension to mitigate the impact is reduced. The rear suspension adopts the most advanced air suspension of the heavy vehicle at present. The air suspension uses compressed air in the compressed air system to charge the air spring. The air suspension can provide a kind of air cushion type support in the whole range from no load to full load. The suspension also provides high-performance left and right side and front and rear axle load distribution, which helps to control the brake balance. The vehicle is more off-road and smooth. For air bag control analysis, the practical training platform adopts double-control self-locking air valve, which can make a group or a single air bag lift or self-lock. It makes students more intuitive to learn the shock absorption effect and principle of air suspension on the whole vehicle beam under heavy load, light load and turning. At the same time, for the convenience of operation, the control module is uniformly collected to the right side of the seat. The specific structure of the above front suspension and rear suspension adopts the tractor, and the utility model does not specifically introduce it.

[0051] In order to be more practical and practical, such as Figure 4As shown, the device is also equipped with the original vehicle simulation hydraulic winch system. Mainly used for pulling the powered heavy equipment on and off the semi-trailer platform, and can also be used for rescue other vehicles, self-help and other operations. The system is mainly composed of hydraulic pump, hydraulic motor, disc brake, reversing valve, winch, steel wire rope and the like. The winch hydraulic pressure is a self-developed type, according to the working principle of the original winch, in order to facilitate the teaching of teachers and the learning of students. The winch hydraulic system is separated out. The manual reversing fork is replaced by a solenoid valve control type, which can directly control the winch hook extension and retraction from the driver's seat. Realize interactive teaching.

[0052] The teaching practical vehicle system package of the utility model comprises a steering system 03, a suspension system and a hydraulic system, and realizes teaching of the structure and composition of each component. The device is provided with a frequency converter to realize forward rotation, reverse rotation, fast rotation and slow rotation of the wheels, and to simulate the acceleration, deceleration, forward gear and reverse gear functions of the original vehicle, so that the working principles of the steering system 03, the driving system, the suspension system and the hydraulic system of the vehicle are fully displayed. The working conditions of each working system can be observed and learned by students or users in a comprehensive and fast manner, the cognition of the real object is improved, the quality of teaching is greatly improved, and the teaching becomes more relaxed and effective.

[0053] It should be noted that the above describes some embodiments of the utility model. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different than that described above and still achieve desirable results. In addition, the processes depicted in the figures do not necessarily require the particular order shown, or sequential order, to achieve the desired results. In some implementations, multitasking and parallel processing can be advantageous or necessary.

[0054] Those skilled in the art will understand that the above discussion of any of the embodiments is merely exemplary and is not intended to be limiting of the scope of the utility model (including claims) to these examples. Any of the above embodiments or technical features between different embodiments can be combined under the idea of the utility model, steps can be implemented in any order, and there are many other changes of different aspects of the utility model embodiments as described above. In order to be brief, they are not provided in detail.

[0055] Although the utility model has been described in conjunction with specific embodiments of the utility model, many alternatives, modifications and variations to these embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) can use the embodiments discussed.

[0056] Embodiments of the present application are intended to encompass all such alternatives, modifications and variations falling within the broad scope of the appended claims. Accordingly, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application shall be included in the scope of protection of the present application.

Claims

1. A teaching and training vehicle system, characterized in that, include: Chassis (01); The steering system (03) is located above the chassis (01) and includes a steering gear (31) and a four-axle drive connected to the steering gear (31); Four sets of wheels are symmetrically and rotatably mounted on the side wall of the chassis (01) to support the chassis (01) and are connected to the four-axle drive. A ladder (04) is installed at one end of the chassis (01).

2. The teaching and training vehicle system according to claim 1, characterized in that, The chassis (01) includes a four-sided frame and a plurality of mounting plates spaced apart on the four-sided frame.

3. The teaching and training vehicle system according to claim 2, characterized in that, The four-axle drive includes a first axle drive, a second axle drive, a third axle drive, and a fourth axle drive connected to each other. The four sets of wheels include a first set of wheels, a second set of wheels, a third set of wheels, and a fourth set of wheels. The first axle drive is connected to the first set of wheels, the second axle drive is connected to the second set of wheels, the third axle drive is connected to the third set of wheels, and the fourth axle drive is connected to the fourth set of wheels.

4. The teaching and training vehicle system according to claim 3, characterized in that, The first axle drive and the fourth axle drive have the same structure. The first axle drive is connected to the steering gear (31) via a steering arm (32). Each axle drive includes a tie rod (33), a steering knuckle arm (34), a left tie rod (35), a tie rod (36), and a right tie rod (37). One end of the tie rod (33) is connected to one end of the steering arm (32), and the other end of the tie rod (33) is connected to one end of the steering knuckle arm (34). The other end of the steering knuckle arm (34) is connected to the corresponding wheel and one end of the left arm (35) of the tie rod. The other end of the left arm (35) of the tie rod is connected to one end of the tie rod (36). The other end of the tie rod (36) is connected to one end of the right arm (37) of the tie rod. The other end of the right arm (37) of the tie rod is connected to the corresponding wheel. The straight tie rod (33) of the fourth axle drive structure is connected to the steering drop arm (32) through a multi-section connecting arm (38).

5. The teaching and training vehicle system according to claim 3, characterized in that, Both the first axle drive and the fourth axle drive further include a power assist cylinder (39), which is connected to the corresponding wheel via a pull rod.

6. The teaching and training vehicle system according to claim 5, characterized in that, The second axle drive and the third axle drive have the same structure. Each axle drive includes a rotating shaft, and the two ends of the rotating shaft are connected to the corresponding wheels.

7. A teaching and training vehicle system according to claim 5, characterized in that, The training vehicle system also includes a steering hydraulic system for controlling the assistant cylinders of the first axle drive and the fourth axle drive. The steering hydraulic system includes a distribution valve (3), a control valve group (4), and a steering tank. The first end of the distribution valve (3) is connected to the inlet end of the power assist cylinder (1) of the first axle drive and the outlet end of the power assist cylinder (2) of the fourth axle drive. The second end of the distribution valve (3) is connected to the outlet end of the power assist cylinder (1) of the first axle drive and the inlet end of the power assist cylinder (2) of the fourth axle drive. The third and fourth ends of the distribution valve (3) are respectively connected to the control valve group (4). The fifth end of the distribution valve (3) is connected to the steering tank assembly (9).

8. A teaching and training vehicle system according to claim 7, characterized in that, The second end of the control valve assembly (4) is connected to the steering oil tank assembly (9). An oil filter assembly (6) and a pump assembly (7) are provided between the second end of the control valve assembly (4) and the steering oil tank assembly (9). The oil filter assembly (6) is located near the control valve assembly (4), and the pump assembly (7) is located near the steering oil tank assembly (9).

9. A teaching and training vehicle system according to claim 7, characterized in that, The control valve group (4) includes a one-way back pressure valve (12) and a flow stabilizing valve (5). The one-way back pressure valve (12) is located near the distribution valve (3), and the flow stabilizing valve (5) is located near the essential oil filter assembly (6).

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