CN214410505U

CN214410505U - Multifunctional electric power steering teaching rack

Info

Publication number: CN214410505U
Application number: CN202120534981.3U
Authority: CN
Inventors: 夏慧娟; 袁国强
Original assignee: Wuxi Vocational And Technical Higher School Of Automobile & Engineering (wuxi Traffic Technician College)
Current assignee: Wuxi Vocational And Technical Higher School Of Automobile & Engineering (wuxi Traffic Technician College)
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-10-15
Anticipated expiration: 2031-03-15

Abstract

The utility model discloses a multifunctional electric power steering teaching rack, which relates to the field of automobile maintenance teaching aids and comprises a rack main body; the universal wheel is installed to rack main part bottom, and removal handrail installs at rack main part front portion, and the seat is installed in rack main part, and the steering wheel links to each other through short steering drive axle with the universal joint upper end, and torque sensor installs on short steering drive axle, the universal joint lower extreme through long steering drive axle with the steering gear links to each other, and the helping hand motor is installed on the steering gear, and the steering gear passes through the tie rod and links to each other with the steering gear, and the bumper shock absorber assembly upper end is installed in rack main part, and the bumper shock absorber assembly lower extreme links to each other with the steering gear, and the wheel assembly is installed on the steering gear, and the steering wheel is installed in rack main part, and LCD, adjustable resistance knob switch, part box are installed on rack main part left side instrument desk, and the operation panel is installed on rack main part right side upper portion, and steering control module, battery are installed on rack main part middle part bottom plate.

Description

Multifunctional electric power steering teaching rack

Technical Field

The utility model relates to an auto repair teaching aid field especially removes convenient, safe and reliable, durable good multi-functional electric power steering teaching rack of usefulness.

Background

With the development of economy, automobiles become one of carriers for people to go out in daily life, and accordingly, car maintenance business is increased greatly, which puts higher requirements on professional technologies of automobile maintenance personnel. At present, some teaching racks which are put into use are directly disassembled and then transplanted to be installed, when the working principle of a steering system needs to be explained and demonstrated, a steering wheel is manually rotated, so that students can observe the change of the steering component and wheels, but the whole process is fast, and main components (such as a gear, a rack and a power-assisted motor gear) are arranged in a steering gear, so that the students cannot visually see the operation process of each component; when the fault diagnosis of the steering system is needed, the pin jack externally connected to the whole marked panel is used for detecting the corresponding sensor, the actuator and the computer module plug, but not the plug connector of the original vehicle, so that the plug position and the pin arrangement connected with the meter pen are not in accordance with the actual vehicle when the fault diagnosis is carried out by the students in practice, and the practicability is poor; when the rack needs to be moved, the rack is moved by manpower, time and labor are wasted, safety accidents are easy to happen, the rack adopting the fixed pulleys is not flexible enough when moving in a narrow space, when the rack is placed on a station and needs to be fixed, the pulleys can be locked, but the reliability is poor, and potential safety hazards exist.

Disclosure of Invention

This for solving above-mentioned problem, the utility model discloses an open part structural installation takes adjustable resistance knob on-off control's helping hand motor, directly at the other external inspection hole with table pen looks adaptation of plug connector, installs retractable and removes the universal wheel and compensate the not enough of having the rack function, the utility model discloses simple structure, practicality are strong, it is convenient to remove, the corresponding teaching task of adaptation that can be better.

The utility model adopts the technical proposal that:

a multifunctional electric power-assisted steering teaching bench comprises a bench main body, universal wheels, a movable armrest, a seat, a steering wheel, a short steering transmission shaft, a torque sensor, a universal joint, a long steering transmission shaft, a steering gear, a power-assisted motor, a steering tie rod, a steering joint, a shock absorber assembly, a wheel assembly, a steering wheel, a liquid crystal display, an adjustable resistance knob switch, a part box, an operation console, a steering control module and a storage battery, wherein the universal wheels are arranged on the bench main body; the universal wheel is installed to rack main part bottom, it is anterior at rack main part to remove the handrail installation, the seat is installed in rack main part, the steering wheel with the universal joint upper end links to each other through short steering drive axle, torque sensor installs on short steering drive axle, the universal joint lower extreme through long steering drive axle with the steering gear links to each other, the helping hand motor is installed on the steering gear, the steering gear passes through the tie rod and links to each other with the steering gear, install in rack main part on the bumper shock absorber assembly upper end, bumper shock absorber assembly lower extreme links to each other with the steering gear, the wheel assembly is installed on the steering gear, the steering wheel is installed in rack main part, LCD, adjustable resistance knob switch, part box are installed on rack main part left side instrument desk, the operation panel is installed on rack main part right side upper portion, steering control module, The storage battery is arranged on the bottom plate in the middle of the rack main body.

Further, the rack main body is made of 45 x 45mm aluminum profiles and is connected and fastened through bolts.

Furthermore, the upper part of the universal wheel is provided with an adjusting handle wheel, and the adjusting handle wheel can enable the universal wheel to extend out of the ground or retract into the rack body.

Furthermore, a detection pore plate is arranged beside the plug of the power-assisted motor, and pin arrangement sequence numbers are marked.

Furthermore, the steering gear shell adopts a half-section transparent structure and is wrapped by a polycarbonate transparent plastic pipe.

Furthermore, an anti-slip chopping board is adhered to the bottom of the part box.

Further, the storage battery specification is 12V vehicle-mounted voltage.

The utility model has the advantages that the multifunctional electric power-assisted steering teaching rack is matched with the front movable handrail of the rack main body by arranging the retractable universal wheels, so that the rack main body can be conveniently and quickly moved and fixed after being placed; by arranging the seat, the demonstration process is further close to the actual vehicle using situation; the functions and the working process of each part of the steering system can be more clearly shown by arranging the power-assisted motor, the semi-section transparent steering gear shell and the adjustable resistance knob switch in a matching way; the system voltage, the steering torque and the dynamic data (working voltage, current, duty ratio signal waveform and the like) of the power-assisted motor can be visually seen by arranging the liquid crystal display; through setting up the external diagnosis inspection hole of sensor, executor, press close to the real car and detect the situation, promote teaching efficiency.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Shown in the figure are: 1-a rack main body, 2-universal wheels, 3-a moving handrail, 4-a seat, 5-a steering wheel, 6-a short steering transmission shaft, 7-a torque sensor, 8-a universal joint, 9-a long steering transmission shaft, 10-a steering gear, 11-a power-assisted motor, 12-a steering tie rod, 13-a steering joint, 14-a shock absorber assembly, 15-a wheel assembly, 16-a steering wheel, 17-a liquid crystal display, 18-an adjustable resistance knob switch, 19-a part box, 20-an operation panel, 21-a steering control module and 22-a storage battery.

Detailed Description

The following describes the embodiments of the present invention with reference to the accompanying drawings.

The utility model adopts the technical proposal that:

the multifunctional electric power-assisted steering teaching bench combined with the attached figure 1 comprises a bench main body 1, universal wheels 2, a movable armrest 3, a seat 4, a steering wheel 5, a short steering transmission shaft 6, a torque sensor 7, a universal joint 8, a long steering transmission shaft 9, a steering gear 10, a power-assisted motor 11, a steering tie rod 12, a steering joint 13, a shock absorber assembly 14, a wheel assembly 15, a steering wheel 16, a liquid crystal display 17, an adjustable resistance knob switch 18, a part box 19, an operating console 20, a steering control module 21 and a storage battery 22; the bottom of a rack main body 1 is provided with universal wheels 2, a movable armrest 3 is arranged at the front part of the rack main body 1, a seat 4 is arranged on the rack main body 1, a steering wheel 5 is connected with the upper end of a universal joint 8 through a short steering transmission shaft 6, a torque sensor 7 is arranged on the short steering transmission shaft 6, the lower end of the universal joint 8 is connected with a steering gear 10 through a long steering transmission shaft 9, a power-assisted motor 11 is arranged on the steering gear 10, a steering gear 13 is connected with the steering gear 10 through a steering tie rod 12, the upper end of a damper assembly 14 is arranged on the rack main body 1, the lower end of the damper assembly 14 is connected with the steering gear 13, a wheel assembly 15 is arranged on the steering gear 13, a steering wheel 16 is arranged on the rack main body 1, a liquid crystal display 17, an adjustable resistance knob switch 18 and a part box 19 are arranged on an instrument desk at the left side of the rack main body 1, an operation desk 20 is arranged at the upper part at the right side of the rack main body 1, the steering control module 21 and the storage battery 22 are mounted on the middle bottom plate of the rack body 1.

Implement multi-functional electronic power assisted steering teaching rack, rack main part 1 adopts the aluminum alloy ex-trusions structure, light in weight, high strength, install 4 retractable universal wheels 2 respectively under rack main part 1, adopt bolted connection, retractable universal wheel 2 makes in the universal wheel 2 withdrawal rack or stretches out to ground through the regulation on rotatory upper portion, install at 1 front side of rack main part and remove handrail 3, conveniently remove the rack, seat 4 adopts the plastics material, install on rack main part 1 towards the steering wheel, it is fixed with rack main part 1 to adopt the bolt, make things convenient for operating personnel to adopt the exact posture to accomplish 5 pivoted operations of steering wheel and observation. The steering wheel 5 is connected with the short steering transmission shaft 6 through a spline, the torque sensor 7 is arranged on the short steering transmission shaft 6 to collect torque signals and is connected with the steering control module 21 through a hard line, a detection hole for diagnosis is externally connected beside a plug of the torque sensor 7 and is marked with a pin serial number, the short steering transmission shaft 6 is connected with the long steering transmission shaft 9 through a universal joint 8, the long steering transmission shaft 9 is connected with the steering gear 10, the steering gear 10 adopts a half-section transparent structure and is wrapped by a polycarbonate transparent plastic tube, the power-assisted motor 11 is connected with the steering gear 10 in a meshing mode, the power-assisted motor 11 is connected with the steering control module 21 through a hard line, a detection hole for diagnosis is externally connected beside a plug of the power-assisted motor 11 and is marked with a pin serial number, the inner side of the transverse steering rod 12 is connected with the steering gear 10, the outer side of the transverse steering rod 12 is connected with the steering joint 13 through a ball head, the lower end of a shock absorber assembly 14 is connected with a steering knuckle 13, the upper end of the shock absorber assembly 14 is connected with a base of a rack main body 1 through a bolt, a wheel assembly 15 is installed on the steering knuckle 13, a steering wheel 16 is arranged at the bottom of the wheel assembly 15, the wheel CAN freely rotate when steering is convenient and plays a role of supporting the wheel edge, a liquid crystal display 17 is connected with a steering control module 21 through a CAN (controller area network) line, CAN display system voltage, steering torque and dynamic data (working voltage, current, duty ratio signal waveform and the like) of a power-assisted motor 11 in real time and is installed on an instrument desk on the left side of the rack main body 1, a detection hole for diagnosis is externally connected beside a plug of the steering control module 21 and is marked with a stitch serial number, an adjustable resistance knob switch 18 is connected with the steering control module 21 through a hard line and is installed on the instrument desk on the left side of the rack main body 1, a storage battery 22 adopts a vehicle-mounted 12V power supply, and power is supplied to the torque sensor 7, the power-assisted motor 11, the liquid crystal display 17 and the steering control module 21.

When the steering function and principle demonstration is carried out, the adjustable resistance knob switch 18 is adjusted to a low-speed position, the signal is transmitted to the steering control module 21 through a hard line, the steering control module 21 transmits an execution signal to the power-assisted motor 11, the power-assisted motor 11 drives the steering gear 10 to slowly rotate, the steering gear 10 drives the steering tie rod 12 to move, the wheel assembly 15 slowly rotates leftwards or rightwards, a student observes the dynamic process of the operation of a steering main component through a transparent shell of the steering gear 10, the steering control module 21 transmits related data to the liquid crystal display 17 through a CAN (hard line), the student CAN visually observe system voltage, steering torque and dynamic data (working voltage, current, duty ratio signal waveform and the like) of the power-assisted motor 11 through the liquid crystal display 17, and the function and the working process of each component of the steering system CAN be understood more clearly by combining the working principle, and the learning effect is promoted.

When training in the fact to the real standard of steering system fault diagnosis study, the student finds the plug that corresponds sensor, executor, module, can place the part under test in parts box 19 simultaneously, avoids falling, damage components and parts, and the external diagnosis inspection hole on its next door is connected to the reuse pen-shape metre, presses close to the real car situation of detecting, and the real standard also is difficult for damaging the inspection hole many times, guarantees that real standard process is normal, can not delay the progress of real standard teaching because of equipment fragile, promotes teaching efficiency.

When needs move rack main part 1, make the universal wheel 2 stretch out to ground through the regulation on 2 upper portions of rotatory universal wheel, rack main part 1 leaves ground this moment, because of adopting the design of universal wheel 2, even remove in narrow and small space, it is not influenced yet, remove rack main part 1 to the assigned position after, regulation on 2 upper portions of rethread rotatory universal wheel makes the universal wheel retract to rack main part 1 in to the wheel, make rack main part 1 place subaerial, operating personnel can not block the foot space because of universal wheel 2 this moment, or the unexpected universal wheel 2 that strikes leads to the rack to remove, personnel are injured, therefore, the clothes hanger is strong in practicability, it is convenient to remove.

The above is the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and all the simple modifications, equivalent changes and modifications made by the technical entity of the present invention to the above embodiments all belong to the scope of the technical solution of the present invention.

Claims

1. The utility model provides a multi-functional electronic power assisted steering teaching rack, includes rack main part (1), its characterized in that: the steering device is characterized by further comprising universal wheels (2), a movable armrest (3), a seat (4), a steering wheel (5), a short steering transmission shaft (6), a torque sensor (7), a universal joint (8), a long steering transmission shaft (9), a steering gear (10), a power-assisted motor (11), a steering tie rod (12), a steering joint (13), a shock absorber assembly (14), a wheel assembly (15), a steering wheel (16), a liquid crystal display (17), an adjustable resistance knob switch (18), a part box (19), an operating console (20), a steering control module (21) and a storage battery (22); the universal wheel (2) is installed to the bottom of rack main part (1), it is anterior at rack main part (1) to remove handrail (3), install on rack main part (1) seat (4), steering wheel (5) with universal joint (8) upper end links to each other through short steering drive shaft (6), torque sensor (7) are installed on short steering drive shaft (6), universal joint (8) lower extreme through long steering drive shaft (9) with steering gear (10) link to each other, helping hand motor (11) are installed on steering gear (10), knuckle (13) link to each other with steering gear (10) through tie rod (12), install on rack main part (1) bumper shock absorber assembly (14) upper end, bumper shock absorber assembly (14) lower extreme links to each other with knuckle (13), wheel assembly (15) are installed on knuckle (13), the steering wheel (16) is installed on the rack main body (1), the liquid crystal display (17), the adjustable resistance knob switch (18) and the part box (19) are installed on the instrument desk on the left side of the rack main body (1), the operating platform (20) is installed on the upper portion of the right side of the rack main body (1), and the steering control module (21) and the storage battery (22) are installed on the bottom plate in the middle of the rack main body (1).

2. The multi-functional electric power steering teaching stand of claim 1, wherein: the rack main body (1) is made of 45 x 45mm aluminum profiles and is connected and fastened through bolts.

3. The multi-functional electric power steering teaching stand of claim 2, wherein: the upper part of the universal wheel (2) is provided with an adjusting handle wheel, and the adjusting handle wheel can extend the universal wheel (2) to the ground or retract the universal wheel into the rack body (1).

4. The multi-functional electric power steering teaching stand of claim 3, wherein: and a detection pore plate is arranged beside the plug of the power-assisted motor (11), and pin arrangement sequence numbers are marked.

5. The multi-functional electric power steering teaching stand of claim 4, wherein: the shell of the steering gear (10) is of a half-section transparent structure and is wrapped by a polycarbonate transparent plastic pipe.

6. The multi-functional electric power steering teaching stand of claim 5, wherein: an anti-skid chopping board is stuck at the bottom of the part box (19).

7. The multi-functional electric power steering teaching stand of claim 6, wherein: the specification of the storage battery (22) is 12V vehicle-mounted voltage.