Electric truck connecting rod auxiliary wheel device

Abstract

The invention relates to an electric truck connecting rod auxiliary wheel device and aims to provide an electric truck connecting rod auxiliary wheel device so as to reduce the vibrating amplitude in the traveling process. According to the technical scheme, the electric truck connecting rod auxiliary wheel device comprises an auxiliary wheel which can freely rotate within 360 degrees in a horizontal plane, and also comprises a supporting plate which is to be hinged with a frame and can freely rotate around an axis on which a hinge point is positioned, wherein a shock absorber assembly is hinged at one end, which is far away from the hinge point of the frame, of the supporting plate; the other end of the shock absorber assembly is hinged with the frame; the auxiliary wheel is arranged on the lower surface of the supporting plate; the shock absorber assembly comprises a support hinged with the frame, a shock absorber on the outer surface of which a thread is tapped, and an adjusting nut which is in threaded connection with the outer surface of the shock absorber; a spring II is coaxially sleeved outside the shock absorber; two ends of the spring are respectively pressed against the support and the adjusting nut; and one end of the shock absorber far away from the support is hinged with the supporting plate. The device is suitable for an electric tray carriage.

Description

technical field [0001] The invention relates to a connecting rod auxiliary wheel device of an electric pallet truck, which is mainly suitable for electric pallet trucks. Background technique [0002] The auxiliary wheels of traditional electric pallet trucks are generally rigidly connected to the frame by bolts, and can only rotate freely 360 degrees in the left and right horizontal planes. The auxiliary wheels of this structure have the following disadvantages: 1. The auxiliary wheels are rigidly connected , for uneven ground, it cannot play a buffering role, which has an impact on driving safety; 2. The general power system of a pallet truck using such auxiliary wheels should have a shock absorption and buffering effect, which will complicate the power system and make the whole The interior of the car is not easy to layout, and when there is a problem with the power system, it is inconvenient to maintain; 3. Because this kind of auxiliary wheel is rigidly connected, when t...

AI Technical Summary

Problems solved by technology

[0002] The auxiliary wheels of traditional electric pallet trucks are generally rigidly connected to the frame by bolts, and can only rotate freely 360 degrees in the left and right horizontal planes. The auxiliary wheels of this structure have the following disadvantages: 1. The auxiliary wheels are rigidly connected , for uneven ground, it cannot play a buffering role, which has an impact on driving safety; 2. The general power system of a pallet truck using such auxiliary wheels should have a shock absorption and buffering effect, which will complicate the power system and make the whole The interior of the car is not easy to layout, and when there is a problem with the power system, it is inconvenient to maintain; 3. Because this kind of auxiliary wheel is rigidly connected, when there are bolts, nuts and other parts on the ground, the auxiliary wheel is easy to slide together with it, and the auxiliary wheel is accelerated. wear and tear

[0003] So some training wheels with buffer springs gradually appeared. This kind of training wheels added buffer springs on the basis of the above-mentioned training wheels. The training wheels of this structure also have the following disadvantages: 1. When the road surface is uneven, the training wheels will The buffer spring can absorb the vibration of the road surface, but after the spring absorbs the vibration, it is in the elongation-compression link that gradually attenuates, prolonging the driving vibration, making it difficult for the operator to control, and it is easy to increase the fatigue of the operator; 2. This structure Although the auxiliary wheel can reduce the amplitude of driving vibration, it prolongs the vibration and increases the instability of driving, and the spring strength generally used on this type of auxiliary wheel is not enough, the cushioning effect is not obvious, and it is easy to damage

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