Common fault one: The passive needle does not stop well at any position and does not coincide with the main needle. The method of removal is to remove the dial glass, adjust the passive needle compression spring screw, and adjust the pointer to coincide with the main needle.
Common fault 2: The dial pointer has poor sensitivity, and there is a stop phenomenon after unloading, or the zero position often changes. There are many reasons for this.
1. The pendulum has obstructions during the lifting process, or the pendulum shaft is too dirty or rusted, causing the pointer to change back to zero.
2. The friction force of the force measuring piston in the cylinder increases or is stuck, and the chrome oxide paste is applied to the grinding until normal.
3. The belt on the force measuring piston is loose or too loose (so that the piston cannot run at a constant speed).
4. The buffer return oil is not good and should be adjusted or cleaned.
5. There is contact between the racker and the rack and should be loosened.
6. The pointer rotation shaft is dirty and should be cleaned.
7. The pulley on the rack and its track are too dusty and rusted. At this point you need to remove the cleaning, plus a little watch oil.
The electro-hydraulic universal testing machine is a basic instrument that is often used, so its loss and failure should be commonplace. It is necessary to master the common faults of the universal machine and its repair methods so as to improve the efficiency of production and ensure that it is not because of omnipotence. The machine malfunctions and delays production.
Electrohydraulic main hydraulic universal testing machine universal testing machine and electronic universal testing machine, universal testing machine comprises one or more vertical uprights bearers, a fixed horizontal base mounted on the post, the top level there is a movable crosshead (cross beam). In the current universal testing machine, there is usually a ball screw on the column to fix the movable crosshead. The maximum size of the carrier horizontal frame for a universal testing machine and the measured load / tension load meter common representation. Dynamometer attached to the crosshead rely on an electric motor or hydraulic driven means movable.
Common fault 2: The dial pointer has poor sensitivity, and there is a stop phenomenon after unloading, or the zero position often changes. There are many reasons for this.
1. The pendulum has obstructions during the lifting process, or the pendulum shaft is too dirty or rusted, causing the pointer to change back to zero.
2. The friction force of the force measuring piston in the cylinder increases or is stuck, and the chrome oxide paste is applied to the grinding until normal.
3. The belt on the force measuring piston is loose or too loose (so that the piston cannot run at a constant speed).
4. The buffer return oil is not good and should be adjusted or cleaned.
5. There is contact between the racker and the rack and should be loosened.
6. The pointer rotation shaft is dirty and should be cleaned.
7. The pulley on the rack and its track are too dusty and rusted. At this point you need to remove the cleaning, plus a little watch oil.
The electro-hydraulic universal testing machine is a basic instrument that is often used, so its loss and failure should be commonplace. It is necessary to master the common faults of the universal machine and its repair methods so as to improve the efficiency of production and ensure that it is not because of omnipotence. The machine malfunctions and delays production.
Electrohydraulic main hydraulic universal testing machine universal testing machine and electronic universal testing machine, universal testing machine comprises one or more vertical uprights bearers, a fixed horizontal base mounted on the post, the top level there is a movable crosshead (cross beam). In the current universal testing machine, there is usually a ball screw on the column to fix the movable crosshead. The maximum size of the carrier horizontal frame for a universal testing machine and the measured load / tension load meter common representation. Dynamometer attached to the crosshead rely on an electric motor or hydraulic driven means movable.
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