Pull test machine common faults and solutions - Database & Sql Blog Articles

Pull test machine common faults and solutions

1. When the tensile testing machine is loaded, the pointer vibrates or stops when it stops.

1

Clutch gear wear: need to be repaired or replaced.

2

, the friction washer or spring wear of the disc: need to replace the leather washer or spring.

3

Shift lever shift: Adjust the joystick to fit the socket.

Second, the pointer does not return to zero when the pendulum is replaced

1

The tensile testing machine is not installed horizontally: adjust the level of the testing machine with a level.

2

, pendulum is not vertical: only hanging

A

Hey. Adjust the balance so that it is vertical.

Third, the tensile test machine pendulum return position is too fast or too slow

1

The buffer valve position is not properly placed: adjust the buffer valve to the proper position.

2

The hydraulic oil viscosity is too low or too high: when the viscosity of the hydraulic oil is too low, the pendulum will fall back quickly, and when the viscosity is high, it will fall slowly. The hydraulic oil of the appropriate viscosity should be replaced.

3

In the buffer valve, in the oil pipe or in the hydraulic oil, it is dirty: cleaning the buffer valve and the oil pipe. Replace the hydraulic fluid.

Fourth, the tensile test machine pointer back to zero lag or instability

1

, pointer bearings, spindle bearings are corroded or oily: cleaning or replacing bearings.

2

The gear rod is deformed or the gear bar does not mesh with the gear: straighten the gear bar or clean, trim gear, sheave and other transmission components.

3

There is dirt in the buffer valve: cleaning the buffer valve.

V. The positive deviation of the tensile test machine

1

The short arm blade is loose: the blade is tight.

2

Light weight: give weight

(

Take care

A

,

B

,

C

Weight of cockroach

)

.

6. The main reason for the negative deviation of the indication value is that the frictional resistance between the components is too large. The specific reasons and solutions are as follows:

1

2. The frictional resistance of the pointer bearing, the pendulum shaft bearing and the force measuring transmission component is too large: mainly to adjust and clean the bearing and the force transmission component. Eliminate abnormal frictional resistance.

2

The upper chuck, the tension of the driven needle spring and the frictional resistance of the drawing device are large: adjust the upper chuck, the tension of the driven needle spring and the drawing device parts. Eliminate abnormal frictional resistance.

3

The contact between the piston rod and the swing rod is not flexible: adjust the joint between the two. Make it flexible.

Seven, the follower needle drag or shift

1

The effect of the spring force of the driven needle spring piece or the frictional resistance of the driven needle and the indicator disc: adjust the elastic force of the driven needle spring piece or the gap between the driven needle and the indicator disc.

2

There is a deviation between the two ends of the driven needle: adjust the weight of both ends to make it balanced.

Eight, the deviation of the indication value is irregular

1

The gear rod and gear are oily, worn or burred: eliminate the oil stain and burr of the gear rod and gear, find the contact point of the gear rod when the tooth is out of tolerance, and then correct the gear rod and gear; if the error cannot be eliminated. Replace the rack and gear.

2

, tensile testing machine test machine installation is not level: adjustment level.

3

Bending the toothed rod: straighten or replace the toothed rod and adjust the gap of the rolling sheave.

Nine, after the computer software is online, the message box appears to be overloaded.

The solution is to check if the communication line between the computer and the test machine is off.

;

Check if the online selection sensor is selected correctly

;

Check the most recent test or operation key

Whether the sensor is hit by the disk

;

Check if the calibration or calibration function of the software is used before the problem occurs.

;

Check if the calibration values, calibration values, or other information in the hardware parameters have been manually changed.

Ten, the test machine host power is not bright, can not move up and down.

The solution is to check if the power line connected to the test machine is connected properly.

;

Check if the emergency stop switch is in the screwed state

;

Check if the power supply voltage of the access test machine is normal.

;

Check if the fuse on the machine socket is blown. Please remove the spare fuse and install it.

11. The main power of the test machine is powered but the device cannot move up and down.

The solution is to check if it is

15S(

time

)

In the future, the device cannot be moved, because the host needs to self-test when it is powered on.

15S

time

;

Check if the upper and lower limits are in the right position and have a certain running space.

;

Check if the power supply voltage connected to the test machine is normal.