Flexible test device for strength of fork arm carrier

Abstract

The invention belongs to the technical field of forklifts, and particularly relates to a flexible test device for strength of a fork arm carrier. The test device which comprises a hanging frame mechanism, a pressure head mechanism, a plate-shaped base and a roller mechanism. The hanging frame mechanism comprises a box-shaped hanging frame body, a virtual portal frame and a chain plate support. Thehanging frame body comprises a vertical mounting plate and a hanging frame bottom plate. The virtual portal frame is in a vertical rectangular frame shape, and a pair of channel steel is correspondingly arranged at the two sides of the virtual portal frame; and the virtual portal frame is vertically mounted on the mounting plate. The chain plate support comprises a vertical plate, a pair of top plates and a pair of fork hanging chain plates, wherein the pair of top plates and the pair of fork hanging chain plates are horizontally installed at the two sides of the upper portion of the verticalplate respectively, a pair of studs are correspondingly inserted into the pair of top plates, and the vertical plate is fixedly installed on the mounting plate through a force bearing mandrel with aflange at one end. The device is high in safety, it is ensured that the pressing head can slide up and down along the pair of guide columns in each cycle, and only pressure in the vertical direction is applied to the fork arm carrier.

Description

technical field [0001] The invention belongs to the technical field of forklifts, and in particular relates to a flexibility test device for the strength of a fork frame. Background technique [0002] As a common lifting and transportation equipment in construction machinery, forklifts have been widely used in factories, docks, ports and other industries. The fork frame is one of the key components of the forklift lifting system, and its strength is directly related to the safety of life and property of the relevant personnel of the user unit. Among them, the common fault is severe plastic deformation of the fork frame or tearing of the weld seam. Therefore, it is particularly necessary to test the strength of the forklift fork frame. [0003] At present, there are mainly the following deficiencies in the bench strength test tooling for forklift fork racks in China: [0004] 1. There are many types of forklift racks with large discrete dimensions. Each set of tooling corr...

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Problems solved by technology

[0004] 1. There are many types of forklift racks with large discrete dimensions. Each set of tooling corresponds to the strength test of a kind of fork rack. The number of test devices is large, storage and maintenance are difficult, and the construction cost is high;

[0005] 2. Due to the complicated stress conditions and many test conditions of the forklift fork frame during work, the number of tooling parts is large, the strength test device is complicated, the construction cost of a single set of tooling is high, and storage and maintenance are difficult;

[0006] 3. The test tooling of most manufacturers is difficult to install the workpiece, the labor intensity is high when clamping, and the safety is not good;

[0007] 4. Every time the fatigue test load is applied, a slight one-way displacement between the equipment indenter and the fork is likely to occur. After accumulation, the indenter will easily slip out, damage the test equipment, affect the test accuracy and test results, and affect the safety of surrounding personnel. influences;

[0008] 5. It is difficult to accurately and effectively simulate various stress conditions of the delivery fork, such as wide load distance, eccentric load, positive load, overload, etc., and the confidence of the test results is low

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