CN210128827U - Engine rocker arm fatigue test device - Google Patents
Engine rocker arm fatigue test device Download PDFInfo
- Publication number
- CN210128827U CN210128827U CN201921137756.5U CN201921137756U CN210128827U CN 210128827 U CN210128827 U CN 210128827U CN 201921137756 U CN201921137756 U CN 201921137756U CN 210128827 U CN210128827 U CN 210128827U
- Authority
- CN
- China
- Prior art keywords
- rocker arm
- base
- mounting hole
- lubricating oil
- bottom end
- 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.)
- Expired - Fee Related
Links
- 238000009661 fatigue test Methods 0.000 title claims abstract description 14
- 239000010687 lubricating oil Substances 0.000 claims abstract description 47
- 238000012360 testing method Methods 0.000 claims abstract description 43
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 230000005284 excitation Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses an engine rocker arm fatigue test device, including base, rocking arm seat, loading axle and adjustment post. The bottom of the rocker arm seat is fixedly connected above the base, and during testing, the central mounting hole of the rocker arm is rotatably sleeved on the horizontal shaft end of the rocker arm seat; the bottom end of the adjusting column is connected with the base, and the top end of the adjusting column is used for being connected with the valve end of the rocker arm; the base is provided with a first mounting hole, the bottom end of the loading shaft is sleeved in the first mounting hole, the bottom end of the loading shaft and the hole wall of the first mounting hole are sealed through a sealing ring, and the top end of the loading shaft is used for being abutted against the push rod end of the rocker arm so as to provide a test load; the base is provided with a hydraulic oil inlet, a hydraulic oil pressure measuring port, a lubricating oil inlet and a lubricating oil pressure measuring port. The test device can simulate the fatigue fracture failure of the engine rocker arm to carry out the test, two loading modes of hydraulic pressure and electromagnetic excitation can be conveniently carried out, the universality is high, the test mode is flexible, and the safety coefficient is high.
Description
Technical Field
The utility model relates to a vehicle manufacturing technical field, in particular to engine rocker arm fatigue test device.
Background
The rocker arm of the engine is a main part of an engine gas distribution system and is used for driving a valve to open and close.
In the prior art, how to simulate fatigue fracture failure of an engine rocker arm for testing is a technical problem to be solved urgently by a person skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an engine rocker arm fatigue test device can simulate engine rocker arm fatigue fracture inefficacy to test.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an engine rocking arm fatigue test device, includes base, rocking arm seat, loading axle and adjustment post, wherein:
the bottom of the rocker arm seat is fixedly connected above the base, a horizontal shaft end is arranged on the rocker arm seat, and during a test, a central mounting hole of the rocker arm is rotatably sleeved on the horizontal shaft end;
the bottom end of the adjusting column is connected with the base, and the top end of the adjusting column is used for being connected with the valve end of the rocker arm;
the base is provided with a first mounting hole, the bottom end of the loading shaft is sleeved in the first mounting hole, the bottom end of the loading shaft and the hole wall of the first mounting hole are sealed through a sealing ring, and the top end of the loading shaft is used for abutting against the push rod end of the rocker arm to provide a test load;
a hydraulic oil inlet used for being connected with a hydraulic joint and a hydraulic oil pressure measuring port used for being connected with a first pressure sensor are formed in the base, and the hydraulic oil inlet and the hydraulic oil pressure measuring port are located at the bottom end of the first mounting hole and are communicated with the first mounting hole;
and the base is provided with a lubricating oil inlet used for connecting a lubricating oil pipeline and a lubricating oil pressure measuring port used for connecting a second pressure sensor.
Preferably, in the above test device, the base is provided with a second mounting hole, and the bottom end of the adjusting column extends into the second mounting hole and is in threaded connection with the second mounting hole.
Preferably, in the above test device, a nut is disposed at the bottom end of the adjusting column outside the opening of the second mounting hole and is in threaded connection with the adjusting column.
Preferably, in the above test apparatus, the base is provided with a first lubricating oil path, and the rocker arm base is provided with a second lubricating oil path connected to the first lubricating oil path for delivering lubricating oil to a target position;
the lubricating oil inlet and the lubricating oil pressure measuring port are connected with the first lubricating oil way.
Preferably, in the above test apparatus, the lubricant inlet port and the lubricant pressure measuring port are opened in the same side wall of the base.
Preferably, in the above test apparatus, the hydraulic oil inlet is provided on the bottom surface of the base;
the hydraulic oil pressure measurement port is formed in the side wall of the base.
Preferably, in the above test apparatus, the loading shaft is a stepped shaft, and a diameter of a bottom end of the stepped shaft located in the first mounting hole is larger.
The utility model provides an engine rocker arm fatigue test device's working process:
1) when the rocker arm device works, the rocker arm seat is arranged on the base, the rocker arm is arranged on the horizontal shaft end of the rocker arm seat, hydraulic pressure or electromagnetic excitation force directly acts on the loading shaft, the loading shaft acts on the push rod end of the rocker arm, the valve end of the rocker arm is connected with the adjusting column, and the adjusting column can enable the rocker arm to be in a horizontal position. In the test process, the hydraulic pressure or the electromagnetic exciting force is loaded in a pulse loading mode.
2) When the loading mode is hydraulic loading, the hydraulic oil inlet H1 is connected with the hydraulic joint, the hydraulic oil pressure measuring port is connected with the first pressure sensor to measure the hydraulic oil pressure, and the hydraulic oil pressure measuring port acts on the loading shaft through the pressure of the hydraulic oil during working.
3) When the loading mode is electromagnetic excitation loading, the excitation head of the exciter can directly act on the loading shaft 2 through the hydraulic oil inlet H1.
4) When the rocker arm is lubricated in the test process, lubricating oil enters the first lubricating oil channel of the base through the lubricating oil inlet, then the lubricating oil directly enters the oil hole of the rocker arm seat and the second lubricating oil channel under the simulation of the actual working condition, and the lubricating oil pressure measuring port is connected with the second pressure sensor to measure the pressure of the lubricating oil.
The utility model provides an engine rocker arm fatigue test device has following advantage:
1) the hydraulic loading and the electromagnetic excitation loading can be conveniently carried out, the universality is high, the test mode is flexible, the safety factor is high, the existing hydraulic equipment or the existing electromagnetic excitation equipment can be used as a loading power source, and the device is economical and practical.
2) The base and the rocker arm seat of the test device are internally provided with lubricating oil channels, so that the rocker arm can be fully cooled and lubricated, the actual lubricating state of the rocker arm can be truly simulated, and the influence of additional damage caused by poor lubrication on a fatigue result is avoided.
3) The test device can simulate the actual running condition, namely simulate the fatigue fracture failure process of the rocker arm of the engine, and the test boundary is controllable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the embodiment of the utility model provides an engine rocker arm fatigue test device's schematic structure diagram.
Wherein:
1-base, 2-loading shaft, 3-rocker arm base, 4-rocker arm (test object), 5-adjusting column and 6-nut;
h1-hydraulic oil inlet, H2-hydraulic oil pressure measuring port;
l1-lube inlet, L2-lube pressure measurement port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an engine rocker arm fatigue test device according to an embodiment of the present invention.
The embodiment of the utility model provides an engine rocker arm fatigue test device, including base 1, rocking arm seat 3, loading axle 2 and adjustment post 5. Wherein, as shown in fig. 1:
the bottom of the rocker arm seat 3 is fixedly connected above the base 1, a horizontal shaft end is arranged on the rocker arm seat 3, during a test, a central mounting hole of the rocker arm 4 is rotatably sleeved on the horizontal shaft end, and during the test, the rocker arm seat matched with the tested rocker arm 4 is directly adopted;
the bottom end of the adjusting column 5 is connected with the base 1, and the top end of the adjusting column 5 is used for being connected with the valve end of the rocker arm 4 so as to ensure that the rocker arm 4 is in a horizontal position and ensure the vertical direction of stress;
the base 1 is provided with a first mounting hole, the bottom end of the loading shaft 2 is sleeved in the first mounting hole, the bottom end of the loading shaft 2 and the hole wall of the first mounting hole are sealed through a sealing ring, the top end of the loading shaft 2 is abutted against the push rod end of the rocker arm 4 to provide a test load, and in the test process, hydraulic pressure or electromagnetic excitation force acts on the rocker arm 4 through the loading shaft 2;
the base 1 is provided with a hydraulic oil inlet H1 for connecting a hydraulic joint and a hydraulic oil pressure measuring port H2 for connecting a first pressure sensor, and the hydraulic oil inlet H1 and the hydraulic oil pressure measuring port H2 are both positioned at the bottom end of the first mounting hole and are communicated with the first mounting hole;
the base 1 is provided with a lubricating oil inlet L1 for connecting a lubricating oil pipeline and a lubricating oil pressure measuring port L2 for connecting a second pressure sensor.
The embodiment of the utility model provides an engine rocker arm fatigue test device's working process:
1) when the device works, the rocker arm seat 3 is arranged on the base 1, the rocker arm 4 is arranged on the horizontal shaft end of the rocker arm seat 3, hydraulic pressure or electromagnetic excitation force directly acts on the loading shaft 2, the loading shaft 2 acts on the push rod end of the rocker arm 4, the valve end of the rocker arm 4 is connected with the adjusting column 5, and the adjusting column 5 can enable the rocker arm to be in a horizontal position. In the test process, the hydraulic pressure or the electromagnetic exciting force is loaded in a pulse loading mode.
2) When the loading mode is hydraulic loading, the hydraulic oil inlet H1 is connected with the hydraulic joint, the hydraulic oil pressure measuring port H2 is connected with the first pressure sensor to measure the hydraulic oil pressure, and the hydraulic oil pressure acts on the loading shaft 2 during operation.
3) When the loading mode is electromagnetic excitation loading, the excitation head of the exciter can directly act on the loading shaft 2 through the hydraulic oil inlet H1.
4) When the rocker arm 4 is lubricated in the test process, lubricating oil enters the first lubricating oil channel of the base 1 through the lubricating oil inlet L1, then the lubricating oil directly enters the oil hole of the rocker arm seat 3 and the second lubricating oil channel under the simulation of the actual working condition, and the lubricating oil pressure measuring port L2 is connected with the second pressure sensor to measure the pressure of the lubricating oil.
The embodiment of the utility model provides an engine rocker arm fatigue test device has following advantage:
1) the hydraulic loading and the electromagnetic excitation loading can be conveniently carried out, the universality is high, the test mode is flexible, the safety factor is high, the existing hydraulic equipment or the existing electromagnetic excitation equipment can be used as a loading power source, and the device is economical and practical.
2) The base 1 and the rocker arm seat 3 of the testing device are internally provided with lubricating oil channels, so that the rocker arms can be fully cooled and lubricated, the actual lubricating state of the rocker arms can be truly simulated, and the influence of additional damage caused by poor lubrication on fatigue results is avoided.
3) The test device can simulate the actual running condition, namely simulate the fatigue fracture failure process of the rocker arm of the engine, and the test boundary is controllable.
Specifically, in the above experimental apparatus, the base 1 is provided with a second mounting hole, and the bottom end of the adjusting column 5 extends into the second mounting hole and is in threaded connection with the second mounting hole. During the test, the height of the adjusting column 5 can be adjusted by rotating the adjusting column to ensure that the rocker arm 4 is in the horizontal position.
Further, outside the hole opening of the second mounting hole, the bottom end of the adjusting column 5 is provided with a nut 6 and is in threaded connection with the nut. The height of the adjusting column 5 can be locked and fixed through the nut 6 after being adjusted.
Specifically, the base 1 is provided with a first lubricating oil path, and the rocker arm base 3 is provided with a second lubricating oil path connected with the first lubricating oil path to deliver lubricating oil to a target position. Lubricating oil import L1 and lubricating oil pressure measurement mouth L2 all are connected with first lubricated oil circuit, and all set up on the same lateral wall of base 1.
Specifically, a hydraulic oil inlet H1 is opened on the bottom surface of the base 1, and a hydraulic oil pressure measuring port H2 is opened on the side wall of the base 1.
Specifically, the loading shaft 2 is a stepped shaft, and the diameter of the bottom end of the stepped shaft in the first mounting hole is larger.
Here, the term "rocker arm fatigue" as used herein refers to a condition in which the rocker arm breaks when subjected to a cyclic load. The "excitation load" referred to herein is provided by an exciter, which is a device attached to some machinery and equipment to generate an excitation force, and is an important component that utilizes mechanical vibration. The vibration exciter can make the excited object obtain a certain form and magnitude of vibration quantity, so as to make vibration and strength test for object or make calibration for vibration testing instrument and sensor.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The engine rocker arm fatigue test device is characterized by comprising a base (1), a rocker arm seat (3), a loading shaft (2) and an adjusting column (5), wherein:
the bottom of the rocker arm seat (3) is fixedly connected above the base (1), a horizontal shaft end is arranged on the rocker arm seat (3), and a central mounting hole of the rocker arm (4) is rotatably sleeved on the horizontal shaft end during a test;
the bottom end of the adjusting column (5) is connected with the base (1), and the top end of the adjusting column (5) is used for being connected with the valve end of the rocker arm (4);
the base (1) is provided with a first mounting hole, the bottom end of the loading shaft (2) is sleeved in the first mounting hole, the bottom end of the loading shaft (2) and the hole wall of the first mounting hole are sealed through a sealing ring, and the top end of the loading shaft (2) is used for being abutted to the push rod end of the rocker arm (4) to provide a test load;
the base (1) is provided with a hydraulic oil inlet (H1) used for being connected with a hydraulic joint and a hydraulic oil pressure measuring port (H2) used for being connected with a first pressure sensor, and the hydraulic oil inlet (H1) and the hydraulic oil pressure measuring port (H2) are both located at the bottom end of the first mounting hole and are communicated with the first mounting hole;
and the base (1) is provided with a lubricating oil inlet (L1) for connecting a lubricating oil pipeline and a lubricating oil pressure measuring port (L2) for connecting a second pressure sensor.
2. Testing device according to claim 1, characterized in that the base (1) is provided with a second mounting hole, and the bottom end of the adjusting column (5) extends into the second mounting hole and is in threaded connection therewith.
3. Testing device according to claim 2, characterized in that outside the opening of the second mounting hole, a nut (6) is provided at the bottom end of the adjusting column (5) and is screwed thereto.
4. The test device according to claim 1, wherein a first lubricating oil path is arranged on the base (1), and a second lubricating oil path connected with the first lubricating oil path for delivering lubricating oil to a target position is arranged on the rocker arm seat (3);
the lubricating oil inlet (L1) and the lubricating oil pressure measuring port (L2) are both connected with the first lubricating oil path.
5. Test unit according to claim 4, characterized in that the lubricant inlet (L1) and the lubricant pressure measuring port (L2) open on the same side wall of the base (1).
6. Test device according to claim 1, characterized in that the hydraulic oil inlet (H1) opens on the bottom surface of the base (1);
the hydraulic oil pressure measuring port (H2) is formed in the side wall of the base (1).
7. Test device according to claim 1, characterized in that the loading shaft (2) is a stepped shaft, the diameter of the bottom end of which in the first mounting hole is larger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921137756.5U CN210128827U (en) | 2019-07-18 | 2019-07-18 | Engine rocker arm fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921137756.5U CN210128827U (en) | 2019-07-18 | 2019-07-18 | Engine rocker arm fatigue test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210128827U true CN210128827U (en) | 2020-03-06 |
Family
ID=69665469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921137756.5U Expired - Fee Related CN210128827U (en) | 2019-07-18 | 2019-07-18 | Engine rocker arm fatigue test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210128827U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878155A (en) * | 2022-05-25 | 2022-08-09 | 台州威德隆机械有限公司 | Driving structure for load test |
| CN114942128A (en) * | 2022-05-25 | 2022-08-26 | 台州威德隆机械有限公司 | Static load test device and test method thereof |
-
2019
- 2019-07-18 CN CN201921137756.5U patent/CN210128827U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878155A (en) * | 2022-05-25 | 2022-08-09 | 台州威德隆机械有限公司 | Driving structure for load test |
| CN114942128A (en) * | 2022-05-25 | 2022-08-26 | 台州威德隆机械有限公司 | Static load test device and test method thereof |
| CN114942128B (en) * | 2022-05-25 | 2022-12-20 | 台州威德隆机械有限公司 | Static load test device and test method thereof |
| CN114878155B (en) * | 2022-05-25 | 2024-03-19 | 台州威德隆机械有限公司 | Driving structure for load test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210128827U (en) | Engine rocker arm fatigue test device | |
| CN105675276B (en) | A kind of elastic bearing squeeze film damper damping behavior experimental rig | |
| CN104912873B (en) | A kind of lateral force loading device of the hydraulic cylinder of simulated condition | |
| CN104406850B (en) | A kind of rubber bushing stiffness measurement device and its application method | |
| CN103712787B (en) | Pressures cycle service life experiment system and method | |
| CN107238457A (en) | A kind of low thrust measurement apparatus | |
| CN109855828B (en) | Bolt group connection vibration reliability experiment device and test method | |
| CN107101792A (en) | A kind of experimental rig, system and method for obtaining the welding pipeline vibrating fatigue limit | |
| CN108414221B (en) | A kind of fluid torque-converter end cap torsional fatigue strength test method | |
| CN110470439A (en) | A kind of air spring rigidity characteristic test system and method | |
| CN207007513U (en) | A kind of silt salt solution bearing tester | |
| CN105181312B (en) | Engine body sutures bolt vibration natural frequency measurement apparatus and method of testing | |
| CN103712794B (en) | Gear train assembly impact shock energy slippages rate detection system and method | |
| CN106226177B (en) | Extra-high voltage direct current composite wall bushing internal and external anti-seismic testing device and testing method | |
| CN109238603B (en) | Automatic testing device for dynamic and static rigidity of engine suspension | |
| US6510732B1 (en) | Method for determining the balancer condition of a balanced engine | |
| CN113624502A (en) | Engine valve system test bench and valve mechanism test method | |
| JP4083654B2 (en) | Engine assembly leak test pass / fail judgment method | |
| CN105954032B (en) | A kind of magnetic liquid lubrication floating-ring bearing test system and method | |
| Patil et al. | vibration analysis of CI engine using FFT analyzer | |
| CN107192442A (en) | A kind of non-contact electric eddy sensor construction mode testing method | |
| Somashekar et al. | Vibration signature analysis of ic engine | |
| JPH02159536A (en) | Measurement of pre-pressure value for bearing | |
| CN208187670U (en) | A kind of air spring rigidity characteristic test system | |
| CN206311357U (en) | The status monitoring and fault diagnosis system of reciprocating equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |