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Pneumatic transporter with high accuracy steering control and steering control method thereof

A technology for steering control and trucks, applied to steering mechanisms, control devices, vehicle components, etc., can solve the problems that trucks are difficult to meet requirements, the application of trucks is limited, and occupy a large space, etc., and achieve simple structure, no pollution, fast response effect

Active Publication Date: 2019-03-22
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the electromagnetic radiation and other problems of the motor itself, in some special occasions such as flammable, explosive, and electromagnetic interference, it is inevitable to be dangerous even after explosion-proof treatment, so the application of this type of truck is limited.
At the same time, relying on the differential speed control of the active wheels to realize the steering and relying on the steering control direction of the driven wheels takes up a lot of space, which is difficult to apply in some small occasions; For demanding precision machining or assembly occasions, it is difficult for general-purpose pallet trucks to meet the requirements

Method used

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  • Pneumatic transporter with high accuracy steering control and steering control method thereof
  • Pneumatic transporter with high accuracy steering control and steering control method thereof
  • Pneumatic transporter with high accuracy steering control and steering control method thereof

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specific Embodiment approach 1

[0035] Specific implementation mode one: combine Figure 1~Figure 14 This specific embodiment will be described. This embodiment provides a specific implementation of a high-precision steering control pneumatic truck; the high-precision steering control pneumatic truck includes a loading platform 1, a vehicle frame 2, wheels 3, a lifting cylinder assembly 4, Lift push plate 5, rear drive cylinder support seat 6, rear drive cylinder 7, pneumatic helical steering driver 8, front wheel axle 9, front pawl disc 10, front ratchet gear 11, front drive gear 12, front drive rack 13, Rear drive tooth bar 14, rear transmission gear 15, rear ratchet disc 16, rear wheel axle 17, rear ratchet gear 18, front drive cylinder 19 and front drive cylinder support seat 20.

[0036] The loading platform 1 is screwed on the vehicle frame 2, and the wheels 3 are connected respectively to the two ends of the front wheel axle 9 and the rear wheel axle 17; the lifting cylinder assembly 4 includes a cyl...

specific Embodiment approach 2

[0040] Specific implementation mode two: combination Figure 15~Figure 16 This specific embodiment will be described. The difference between this specific embodiment and the first specific embodiment is that: the vibration-exciting flange nut 8-4 can be d 33 Excitation Mode Flange Nut 8-401; the d 33 Vibration mode flange nut 8-401, on which is provided with cage one 8-401-1, vibration cavity two 8-401-2, piezoelectric stack 8-401-3, said piezoelectric stack 8-401 -3 is arranged between the first cage 8-401-1 and the second vibration cavity 8-401-2, so that the second vibration cavity 8-401-2 can generate radial vibration, the number of which is 2n, and n is An integer greater than 1, in this specific embodiment n is 2; the d 33 There are also two ventilation holes 8-401-4 on the flange nut 8-401 in excitation mode, which communicate with the two ventilation holes 8-3-3 inside the piston rod 8-3 respectively; the d 33 The internal thread 2 8-401-5 set by the flange nut 8-4...

specific Embodiment approach 3

[0041] Specific implementation mode three: combination Figure 17~Figure 18 This specific embodiment will be described. The difference between this specific embodiment and the first specific embodiment is that: the vibration-exciting flange nut 8-4 can be d 15 Excitation Mode Flange Nut 8-402; the d 15 The vibration mode flange nut 8-402 is provided with a cage two 8-402-1, a vibration cavity three 8-402-2, the d 15 The shear piezoelectric ceramic 8-402-3 set by the flange nut 8-402 of the excitation mode is pasted between the cage two 8-402-1 and the vibration cavity three 8-402-2, so that the vibration cavity Three 8-402-2 generate axial vibration, the number of which is 2n, n is an integer greater than 1, and n is 2 in this specific embodiment; the d 15 The flange nut 8-402 of excitation mode is also provided with two air holes 3 8-402-4, which communicate with the two air holes 8-3-3 inside the piston rod 8-3 respectively; the d15 excitation mode The internal thread th...

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Abstract

The invention provides a pneumatic transporter with high accuracy steering control and a steering control method thereof to solve the problems that a moving trolley is low in steering accuracy, and difficult to be applied to high precision, inflammable and explosive situations due to electromagnetic radiation of motor and electric spark. The pneumatic transporter with high accuracy steering control comprises a loading table, a frame, wheels, a lift cylinder assembly, a lift push plate, a rear drive cylinder support seat, a rear drive cylinder, a pneumatic spiral steering drive, a front wheel shaft, a front ratchet disk, a front ratchet gear, a front drive gear, a front drive rack, a rear drive rack, a rear drive gear, a rear ratchet disk, a rear wheel shaft, a rear ratchet gear, a front drive cylinder and a front drive cylinder support seat. Piezoelectric ultrasonic vibration control screw pair self-locking is used to unlock, the movement and braking of a flange hollow screw rod is achieved with the combination of compressed air, and the alternately air control of the lift cylinder and the pneumatic screw steering drive is achieved, so as to achieve the precise steering of the transporter.

Description

technical field [0001] The invention relates to the field of pneumatic technology and vehicle movement, in particular to a pneumatic transport vehicle with high-precision steering control and a steering control method thereof. Background technique [0002] Pallet trucks are generally used in factory workshops and warehouses to carry heavy objects or items that are inconvenient to contact directly. Its structure is composed of wheels, frame, electric motor or internal combustion engine, transmission mechanism and other parts. Common trolleys are mostly driven by electric motors, and there are three steering methods: relying on the differential control of the active wheels to realize steering, relying on the steering of the driven wheels to control the direction, and relying on other motors to drive related mechanisms to realize the car body rotation. [0003] The well-known small trucks in the current handling machinery are electric trucks for handling small tanks. It has a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D15/00B60K17/04
CPCB60K17/04B62D15/025
Inventor 卢晓晖高强殷梦飞迟瑞丰程廷海杨士通宝音岳圣涵乔永禄
Owner CHANGCHUN UNIV OF TECH
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