Radial Stiffness Testing Machine For Corrugated Pipe

1. Reference standard:

QC/T 648-2015 "Automotive Steering tie rod assembly performance requirements and bench test methods"

QC/T 1021-2015 "Automobile Independent suspension ball pin assembly performance requirements and bench test Methods"

GB/T 14525-2010 corrugated metal hose technical conditions

Technical specification

The equipment in this scheme is tested for the following items:

Triangle arm swing (including ball head swing and rotation)

Ball pin performance test (including swing moment, rotating moment, maximum swing Angle, axial stiffness, radial stiffness)

Metal bellows

Engine rubber support

 

   

 

2. Product details

No.	Name	Name	Specification&Model	Brand	Quantity (set)
1	Linear loading system	Radial loading servo actuator cylinder	Loading force 25KN, stroke ≥±50mm	Jinan beacon	2
		Axially loaded servo actuator cylinder	Loading force 25KN, stroke ≥±120mm	Jinan beacon	1
		servo valve	FF series	China Aviation 609 Institute	3
		Tension pressure measuring sensor	Measuring range ≥25KN, accuracy 0.05%fs	entrance	2
		displacement sensor	TIM series	NOVO	3
		Connect Accessories	Non-standard customization	Jinan beacon	3
2	Rotary loading system	Rotating mechanism	Non-standard customization	Shanghai Huayuan	match
		Guide device	Non-standard customization	Shanghai Yichen	1
		Angle measuring device	Measuring range ≥42°, accuracy: 0.1°	Jinan beacon	1
		Connecting attachment	Non-standard customization	Jinan beacon	1
3	Clamp	Durable triangular arm fixture	Non-standard customization	Jinan beacon	1
4	Machining Accessories	Equipment base	Non-standard customization	Jinan beacon	1
		connector	Non-standard customization	Jinan beacon	1
5	Control systems and computers	Distribution box	Non-standard customization	Jinan beacon	1
		Servo controller	SuperTest8005	Jinan beacon	1
		Computers and monitors	i5, 8G memory,256g hard disk 1T, 21 inch LCD display	HP	1
		Handling cabinet	16 "standard computer cabinet	Imitation witagram	1
6	Accessories	Screws, cushion iron, etc	Standard part	Domestic quality	1
		Cables, connectors, switches, seals, etc	Meet equipment requirements	Jinan beacon	1
7	He Water Pressure System	The maximum pressure is 15mpa	Driving medium water	Jinan beacon	1(match)
8	High-temperature System	The maximum temperature is 800°	Tubular high temperature furnace	Jinan beacon	1(match)

 

2.1 Using Environment Parameters

Atmospheric pressure: 85 ~ 120kPa;

Working environment temperature: 2℃ ~ 35℃;

Working environment humidity: 20% ~ 95% RH;

Equipment control system ambient temperature: 5~40℃;

2.2 Equipment Infrastructure

2.2.1 Power Distribution Requirements

Power Supply:

Three phase, AC380∨ (+15%, -10%), 50Hz±2%;

Single-phase, AC220∨ (+15%, -10%), 50Hz±2%;

Total power of the equipment: 5KW (excluding hydraulic oil station)

Wiring requirements: The power supply should not be affected by power transients caused by other devices on the circuit; The power interface is within 5 meters of the device

2.2.2 Cooling water Requirements

10m^3 oil cooler

2.2.3 Compressed air Requirements

It isn't necessary

2.2.4 Basic Requirements

The equipment is placed directly on the laboratory floor, and the laboratory floor can meet the weight requirements;

2.3 Main Technical parameters

2.3.1 Device size parameters

The equipment covers an area of about 2500mm×2700mm

Weight: 2.5 tons;

2.3.2 Triangle arm endurance loading test parameters

Radial loading force vertical direction attack 2 25KN Control accuracy: 0.5%FS frequency: 0~5HZ

Radial displacement ±50mm control accuracy: 0.2%FS

Rotation Angle ±40° Accuracy: 0.1° Frequency: 0~5HZ

Axial loading force ±25KN Control accuracy: 0.5%FS Frequency: 0~5HZ

Axial displacement ±120mm control accuracy: 0.2%FS

System test accuracy: ≤±0.5%FS

 

2.4 Mechanical bench structure

The mechanical bench includes a linear driving device, a rotating driving device, a displacement measuring device, a test bench support, a specimen fixture, and so on.

The following is a diagram of the loading structure,

 

FIG. 1 Schematic diagram of loading triangle arm

 

2.4.1 Test bench rack

The frame of the test bench supports the rest of the test bench, which includes two parts: the frame and the panel of the test bench. The whole frame is welded with thick rectangular steel, which has high rigidity and stability. The driving force is enclosed in the test bed panel, with high rigidity and strength.

 

(The picture is for reference only.)

 

2.4.2 Linear drive device

The linear driving device includes servo cylinder, servo valve, tension pressure sensor, displacement sensor and other parts. It can realize the linear loading of the specimen in three directions XYZ at the same time, and it can measure the maximum axial displacement, maximum radial displacement, axial stiffness and radial stiffness together with the displacement measuring device. The accuracy of displacement measurement can be guaranteed by the clever structure design.

 

(The picture is for reference only.)

 

2.4.3 Rotate (swing) the drive device

The rotary drive device includes several parts, such as actuator, servo valve, Angle measurement sensor, etc., which can realize the test of the maximum swing Angle.

 

(The picture is for reference only.)

 

2.4.4 Specimen fixture

The test fixture is used to connect the test piece to the equipment to realize the corresponding test item. The specific size is determined according to the sample size. The similar structure is as follows: general base, replace the corresponding ball head fasteners.

 

 

2.5 Electrical and computer control system

Software features are as follows:

1) With beautiful, convenient human-machine dialogue interface;

2) Change the test conditions and update the test parameters as needed;

3) Can realize dynamic display and record condition parameter values and measurement parameter values;

4) There is a database, the measured data can be stored in the database, the data in the database can be queried.

5) Can automatically record the relationship between load and displacement in the whole process of loading and unloading of axial stiffness and radial stiffness test, can automatically record the relationship between rotation torque and rotation Angle, swing torque and swing Angle, and can automatically record the measured force curve of axial and radial displacement.

 

   

Figure 3 Main interface of control software

 

3. Spare Parts

Table 1 Spare parts list

No. Name Specifications/Model Quantity (Set) Remarks

1 Screw Meets device requirements. 5 With nuts

2 Hex socket screws meet device requirements 10

3 Hex wrench set of 8 1

4 Adjustable wrench Meet device requirements 1

 

4. Appearance of the device

4.1 Identification

Control buttons, display instruments, etc., have the necessary identification, easy to operate. Electrical components, terminals, pneumatic components, etc. have the necessary identification, and correspond to the drawings one by one, easy maintenance.