The main reasons for the operation error are:

1) The noise generated by machinery paralyzes the operator's perception and hearing, making it difficult to judge or make mistakes;

2) Manipulating or controlling the machine according to incorrect or incomplete information leads to errors;

3) The mechanical display and indication signal display are wrong, which makes the operator misoperate;

4) The identification and standardization of the control and operation system are poor, which leads to the operator's operation error;

5) Time was tight, so the problem was not fully considered and dealt with;

6) Insufficient understanding of the dangers of mobile machinery leads to operational errors;

7) Unskilled technology and improper operation methods;

8) Inadequate preparation and arrangement, resulting in operational errors due to haste;

9) Improper operating procedures, poor supervision and inspection, and illegal operation;

10) artificially put the machine in an unsafe state, such as removing the safety cover and cutting off the interlocking device. Take shortcuts for convenience and ignore safety regulations. Such as no turning, no replacement analysis, etc.

Second, the unsafe state of machinery.

Unsafe conditions of machinery, such as imperfect safety protection facilities, lack of ventilation, anti-virus, dust-proof, lighting, earthquake prevention, noise prevention, meteorological conditions and other safety and health facilities, may induce accidents. The hazards of injury accidents caused by sports machinery usually exist in the following parts:

1. Rotating machine parts are in danger of being involved in human bodies or objects from the outside; The protruding parts such as chuck, drill, milling cutter, transmission parts and rotating shaft of machine tools are in danger of hooking sleeves, trouser legs and long hair, which will involve people; Wings and impellers are in danger of being ground; There is a danger of people being involved in the relative contact with the rotating rollers.

2. Parts that do linear reciprocating motion are in danger of collision and extrusion. Stamping, shearing, forging and other mechanical dies, hammers, knives and other parts are in danger of collision and shearing.

The rotating part of the machine is in danger of collision.

4. There are also different potential risk factors in the control point, manipulation point, inspection point, sampling point and feeding process of machinery.

Causes of mechanical damage caused by operation errors in extended data;

1, the noise generated by machinery paralyzes the operator's perception and hearing, resulting in difficulty or error in judgment;

2, according to the wrong or incomplete information to manipulate or control machinery to cause mistakes;

3, mechanical display, indicating signals and other display errors make the operator misoperation;

4. The identification and standardization of the control and manipulation system is poor, which leads to the operator's operation error;

5, time is tight, so that the problem is not fully considered and dealt with;

6. Insufficient understanding of the hazards and operational errors of power machinery;

7, unskilled technology, improper operation method;

8. Inadequate preparation and arrangement, resulting in operational errors due to haste;

9. Improper operating procedures, inadequate supervision and inspection, and illegal operation;

10, artificially put the machine in an unsafe state, such as removing the safety cover and cutting off the interlock device. Take shortcuts for convenience and ignore safety regulations. Such as no turning, no replacement analysis, etc.

Baidu encyclopedia-mechanical injury

People's Daily Online-State Administration of Work Safety defines 40 criteria for judging hidden dangers of major production safety accidents.