CN217878312U - Comprehensive fatigue testing machine for high-pressure fuel pipe - Google Patents
Comprehensive fatigue testing machine for high-pressure fuel pipe Download PDFInfo
- Publication number
- CN217878312U CN217878312U CN202222207967.XU CN202222207967U CN217878312U CN 217878312 U CN217878312 U CN 217878312U CN 202222207967 U CN202222207967 U CN 202222207967U CN 217878312 U CN217878312 U CN 217878312U
- Authority
- CN
- China
- Prior art keywords
- fuel pipe
- pressure
- cylinder
- pressure fuel
- fatigue testing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a comprehensive fatigue test machine for high-pressure fires oil pipe, a serial communication port, it contains the reciprocal hydro-cylinder of high frequency straight line and high frequency swing jar, and the reciprocal hydro-cylinder of high frequency straight line passes through the supporting seat to be fixed on the equipment base, and high frequency swing jar passes through the supporting seat to be fixed on the equipment base. The fatigue testing device integrates and assembles the existing fatigue testing equipment verified in different items, designs the comprehensive fatigue testing machine of the high-pressure fuel pipe, and provides test support for the process research and the new product development of the high-pressure fuel pipe.
Description
Technical Field
The utility model belongs to the technical field of the fatigue test machine technique and specifically relates to a comprehensive fatigue test machine for high pressure fires oil pipe.
Background
In the performance verification and the process research of the high-pressure fuel pipe, the fatigue performance is a crucial assessment item, and the quality of the fatigue performance directly determines the use condition of the product. Aiming at torsional, bending and internal pressure fatigue loads borne by a high-pressure fuel pipe in an actual engine, a series of targeted single test standard equipment are arranged on the market at present, and torsional fatigue is realized by matching a high-frequency oscillating cylinder with a high-pressure pump station to output power and realizing reciprocating torsion along an axis; the bending fatigue is that the high-pressure pump station is matched with a high-frequency linear reciprocating oil cylinder to output power, so that the reciprocating bending along the cross section of the axis is realized; the internal pressure fatigue is realized by that a high-pressure oil pump is matched with a high-frequency oil cylinder to output pulse hydraulic power. The comprehensive fatigue test equipment in the market at the present stage is still deficient; in order to simulate the fatigue condition of the actual high-pressure fuel pipe more truly, the development of a comprehensive fatigue testing machine is necessary.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a comprehensive fatigue testing machine for high-pressure fuel pipe.
The purpose of the utility model is realized through the following technical scheme:
as shown in figure 1, the comprehensive fatigue testing machine for the high-pressure fuel pipe comprises a high-frequency linear reciprocating oil cylinder and a high-frequency oscillating cylinder, wherein the high-frequency linear reciprocating oil cylinder is fixed on an equipment base through a supporting seat, and the high-frequency oscillating cylinder is fixed on the equipment base through the supporting seat;
the four bearing blocks are fixed on the equipment base, the two bearing blocks are connected with one optical axis in a matching mode, and the two optical axes are connected with the test tool;
one end of the test fuel pipe is matched with the test tool, and the other end of the test fuel pipe is connected with the high-frequency oscillating cylinder;
the left side of the test tool is provided with a high-voltage pulse oil inlet;
as shown in FIG. 2, the high-frequency swing oil cylinder is connected with one side of the test fuel oil pipe, and the other side of the test fuel oil pipe is connected with the test tool. The high-frequency swing oil cylinder swings in a reciprocating manner, so that torsional fatigue power is output along the axis of the high-pressure fuel pipe;
the high-frequency linear reciprocating oil cylinder is connected with the test tool. The high-frequency linear reciprocating oil cylinder carries out linear reciprocating motion, so that bending fatigue power is output along the axial cross section of the high-pressure fuel pipe;
high-pressure pulse pressure is input into the test tool through the high-pressure pulse oil inlet and is guided into the test fuel pipe through the test tool, so that internal pressure fatigue power is output to the high-pressure fuel pipe.
As shown in fig. 3, the comprehensive fatigue testing machine is powered by a hydraulic pump station system, wherein a gear pump in the hydraulic pump station system is connected with a power motor, and then is respectively connected with a proportional overflow valve, an electromagnetic overflow valve and a pressure sensor through pipelines;
the power motor drives the gear pump to generate high oil pressure, and hydraulic power is output through an electromagnetic overflow valve, a proportional overflow valve and a pressure sensor respectively, wherein the electromagnetic overflow valve has the function of oil circuit overpressure protection, the proportional overflow valve is used for adjusting the pressure in an oil circuit, and the pressure sensor is used for detecting the actual pressure value in the oil circuit;
the hydraulic pump station system provides a power source and outputs power in three paths, wherein the first path outputs power to the swing oil cylinder through the servo valve, the second path outputs power to the linear reciprocating oil cylinder through the servo valve, and the third path outputs pulse hydraulic power to the high-pressure oil cylinder through the servo valve.
As shown in fig. 4, a power motor drives a gear pump to generate high oil pressure, the oil pressure is output through a proportional relief valve and a pressure sensor, and a current input signal of the proportional relief valve is feedback-controlled by monitoring a signal of the pressure sensor, so that stable oil pressure is output;
the output oil pressure is divided into three paths, power is output to the swing oil cylinder, the linear reciprocating oil cylinder and the high-pressure oil cylinder through the servo valve, and the current input signals of the servo valve are fed back and controlled through respectively monitoring torque/pressure signals, so that stable torque/pressure are respectively output.
Compared with the prior art, the utility model has the positive effects that:
the existing fatigue test equipment verified in different items is fused and assembled to design a comprehensive fatigue tester of the high-pressure fuel pipe, and test support is provided for the process research and new product development of the high-pressure fuel pipe.
Drawings
FIG. 1 is a view showing the entire appearance of the mechanism
FIG. 2 is a plan view showing the entire appearance of the mechanism
FIG. 3 is a schematic diagram of the oil circuit of the hydraulic system
FIG. 4, signal control feedback diagram
Detailed Description
The following provides the utility model relates to a concrete implementation mode of comprehensive fatigue testing machine for high pressure fires oil pipe.
Example 1
As shown in fig. 1, a comprehensive fatigue testing machine for a high-pressure fuel pipe comprises a high-frequency linear reciprocating oil cylinder and a high-frequency oscillating cylinder, wherein the high-frequency linear reciprocating oil cylinder is fixed on an equipment base through a supporting seat, and the high-frequency oscillating cylinder is fixed on the equipment base through the supporting seat;
the four bearing blocks are fixed on the equipment base, the two bearing blocks are connected with one optical axis in a matching mode, and the two optical axes are connected with the test tool;
one end of the test fuel pipe is matched with the test tool, and the other end of the test fuel pipe is connected with the high-frequency oscillating cylinder;
the left side of the test tool is provided with a high-voltage pulse oil inlet;
as shown in fig. 2, the high-frequency swing cylinder is connected with one side of the test fuel pipe, and the other side of the test fuel pipe is connected with the test tool. The high-frequency swing oil cylinder swings in a reciprocating manner, so that torsional fatigue power is output along the axis of the high-pressure fuel pipe;
the high-frequency linear reciprocating oil cylinder is connected with the test tool. The high-frequency linear reciprocating oil cylinder carries out linear reciprocating motion, so that bending fatigue power is output along the axial cross section of the high-pressure fuel pipe;
high-pressure pulse pressure is input into the test tool through the high-pressure pulse oil inlet and is guided into the test fuel pipe through the test tool, so that internal pressure fatigue power is output to the high-pressure fuel pipe.
As shown in fig. 3, the comprehensive fatigue testing machine is powered by a hydraulic pump station system, wherein a gear pump in the hydraulic pump station system is connected with a power motor, and then is respectively connected with a proportional overflow valve, an electromagnetic overflow valve and a pressure sensor through pipelines;
the power motor drives the gear pump to generate high oil pressure, and hydraulic power is output through an electromagnetic overflow valve, a proportional overflow valve and a pressure sensor respectively, wherein the electromagnetic overflow valve has the function of oil circuit overpressure protection, the proportional overflow valve is used for adjusting the pressure in an oil circuit, and the pressure sensor is used for detecting the actual pressure value in the oil circuit;
the hydraulic pump station system provides a power source and outputs power in three paths, wherein the first path outputs power to the swing oil cylinder through the servo valve, the second path outputs power to the linear reciprocating oil cylinder through the servo valve, and the third path outputs pulse hydraulic power to the high-pressure oil cylinder through the servo valve.
As shown in fig. 4, a power motor drives a gear pump to generate high oil pressure, the oil pressure is output through a proportional relief valve and a pressure sensor, and a current input signal of the proportional relief valve is feedback-controlled by monitoring a signal of the pressure sensor, so that stable oil pressure is output;
the output oil pressure is divided into three paths, power is output to the swing oil cylinder, the linear reciprocating oil cylinder and the high-pressure oil cylinder through the servo valve, and the current input signals of the servo valve are fed back and controlled through respectively monitoring torque/pressure signals, so that stable torque/pressure are respectively output.
The working process of the device is as follows: a power motor is started to drive a gear pump to generate high oil pressure, hydraulic power is output through an electromagnetic overflow valve, a proportional overflow valve and a pressure sensor respectively, power is output in three paths, the first path outputs power to a swing oil cylinder through a servo valve, the second path outputs power to a linear reciprocating oil cylinder through the servo valve, and the third path outputs pulse hydraulic power to a high-pressure oil cylinder through the servo valve, so that torsion, bending and internal pressure acting forces are generated, and a test tool is driven to drive a test fuel pipe to perform a fatigue test.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as within the protection scope of the present invention.
Claims (7)
1. The utility model provides a comprehensive fatigue test machine for high-pressure fuel pipe which characterized in that, it contains the reciprocal hydro-cylinder of high frequency straight line and high frequency swing jar, and the reciprocal hydro-cylinder of high frequency straight line passes through the supporting seat to be fixed on equipment base, and high frequency swing jar passes through the supporting seat to be fixed on equipment base.
2. The comprehensive fatigue testing machine for the high-pressure fuel pipe as claimed in claim 1, wherein four bearing seats are fixed on the equipment base, two bearing seats are connected with one optical axis in a matching manner, and the two optical axes are connected with the testing tool.
3. The comprehensive fatigue testing machine for the high-pressure fuel pipe as claimed in claim 1, wherein one end of the test fuel pipe is matched with the test tool, and the other end of the test fuel pipe is connected with the high-frequency oscillating cylinder.
4. The comprehensive fatigue testing machine for the high-pressure fuel pipe according to claim 3, wherein the left side of the testing tool is a high-pressure pulse oil inlet.
5. The comprehensive fatigue testing machine for the high-pressure fuel pipe as claimed in claim 1, wherein the high-frequency swing oil cylinder is connected with one side of the test fuel pipe, and the other side of the test fuel pipe is connected with the test tool.
6. The comprehensive fatigue testing machine for the high-pressure fuel pipe according to claim 1, wherein the comprehensive fatigue testing machine is powered by a hydraulic pump station system.
7. The comprehensive fatigue testing machine for the high-pressure fuel pipe according to claim 6, wherein the hydraulic pump station system provides a power source and outputs power in three paths, the first path outputs power to the swing cylinder through the servo valve, the second path outputs power to the linear reciprocating cylinder through the servo valve, and the third path outputs pulse hydraulic power to the high-pressure cylinder through the servo valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222207967.XU CN217878312U (en) | 2022-08-22 | 2022-08-22 | Comprehensive fatigue testing machine for high-pressure fuel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222207967.XU CN217878312U (en) | 2022-08-22 | 2022-08-22 | Comprehensive fatigue testing machine for high-pressure fuel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217878312U true CN217878312U (en) | 2022-11-22 |
Family
ID=84078624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222207967.XU Active CN217878312U (en) | 2022-08-22 | 2022-08-22 | Comprehensive fatigue testing machine for high-pressure fuel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217878312U (en) |
-
2022
- 2022-08-22 CN CN202222207967.XU patent/CN217878312U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102053039B (en) | Engine body hydraulic fatigue test system | |
| CN201535720U (en) | Reliability test platform for automobile hydraulic power-assisted steering gear | |
| CN105628379A (en) | Speed reducer test device | |
| CN102121889A (en) | Bending fatigue test machine for steel wire rope in case of alternating load | |
| CN217878312U (en) | Comprehensive fatigue testing machine for high-pressure fuel pipe | |
| CN201397223Y (en) | Vibrator for blade testing | |
| CN201606352U (en) | Testing device for hydraulic motor | |
| WO2006002028A3 (en) | Improved hitch and control assembly | |
| CN103423218B (en) | The valve control integration load charger and its control method of load-sensitive | |
| CN107605863A (en) | A kind of cable flexing test device | |
| CN204346717U (en) | A kind of high-low pressure Vidacare corp | |
| CN205446220U (en) | Control valve, variable axial plunger pump and hydraulic system | |
| CN201903487U (en) | Variable-load bending fatigue testing machine for steel rope | |
| CN207229514U (en) | A kind of cable flexing test device | |
| CN201344171Y (en) | Servo hydraulic system for tracking steel tube | |
| CN102419263B (en) | Noise test bed of recirculating ball type power steering gear | |
| CN211347380U (en) | Harmonic reducer torque detection device and harmonic reducer torque detection assembly | |
| CN207396004U (en) | A kind of nuclear island expansion joint shock test platform | |
| CN205533478U (en) | Many fast hydraulic system of parallelly connected many pumps of hydraulic winch | |
| CN207263358U (en) | A kind of gas chamber assembly anchor ear torque detecting apparatus | |
| CN207795743U (en) | A kind of cable tension test device | |
| CN202015772U (en) | Transmission mechanism of punch | |
| Hao et al. | Development of a Testing System for High-efficiency Power Recovery Bag Accumulators | |
| CN202039296U (en) | Synchronous hydraulic tensioning device for micro-control prestressed bridge steel strand | |
| CN2486421Y (en) | Test table of automobile hydraulic steering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |