A mechanical strength testing device

Abstract

The invention discloses a mechanical strength test apparatus. A pedestal is provided with a frame body which is hinged to the upper end of a swinging rod. An impact hammer is fixed to the lower end ofthe swinging rod. A first ratchet wheel is arranged at the outer side of an arc-shaped swinging track of the impact hammer and is fixed to the frame body. A positioning apparatus is in slide connection with the first ratchet wheel and is used for fixing an initial swing position of the impact hammer. A first pawl matched with the first ratchet wheel is hinged to the positioning apparatus, so thatthe positioning apparatus is stably located at a required height on the first pawl by cooperation of the first ratchet wheel and first pawl. The positioning apparatus is connected to a connection rodwhich is detachable from the impact hammer. A to-be-tested piece mounting position for fixing a to-be-tested piece is arranged on a position, at the right side of the first ratchet wheel, of the frame body. The test apparatus has simple structure and has safe and reliable test process, can save manpower and test time during the test process, and can increase test efficiency.

Description

technical field [0001] The invention relates to the technical field of mechanical strength testing, in particular to a mechanical strength testing device. Background technique [0002] Many products must be tested for mechanical strength before they are shipped. The usual method is to place the product to be tested on a rigid support surface, and use a tape measure in one hand to find the height of the product safety test specification. For example, the product to be tested At a position 1 meter above or a little higher, another person holds the steel ball, and according to this height, the steel ball falls freely to the designated test point of the product to be tested for mechanical strength testing. [0003] However, there are many defects in the above test method. First, because the height is controlled by humans, the initial position of the steel ball is not easy to determine. There is no protective measure after the steel ball falls, and there is a possibility that th...

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Problems solved by technology

[0003] However, there are many defects in the above test method. First, because the height is controlled by humans, the initial position of the steel ball is not easy to determine. There is no protective measure after the steel ball falls, and there is a possibility that the steel ball may injure the tester; again, for different test product components, it is necessary to determine the falling height of the steel ball or the specification of the steel ball, which is not easy to determine and select In addition, the steel ball may rebound and hit the test piece further after hitting the test piece. It is difficult to accurately control it to hit the test piece only once under the set impact force, which makes the test process not accurate enough.

The above test process still requires two or even more people to cooperate to complete, and the test height cannot be saved, and the height needs to be measured again before each test, which wastes test manpower and test time, resulting in reduced work efficiency

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