CN211317754U - Stress testing device for engine connecting rod - Google Patents
Stress testing device for engine connecting rod Download PDFInfo
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- CN211317754U CN211317754U CN202020269738.9U CN202020269738U CN211317754U CN 211317754 U CN211317754 U CN 211317754U CN 202020269738 U CN202020269738 U CN 202020269738U CN 211317754 U CN211317754 U CN 211317754U
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Abstract
The utility model discloses an engine connecting rod stress test device, including cylinder frame, piston and connecting rod, the piston is located cylinder frame, the connecting rod upper end is connected with the piston through the piston pin, the piston pin outer end is equipped with the piston pin snap ring, the connecting rod lower extreme is equipped with the connection bearing cap, connection bearing cap and connecting rod inside are equipped with the connecting rod tile, connect through connecting bearing cap bolted connection between connection bearing cap and the connecting rod, the connecting rod below is connected with the bent axle, be equipped with test structure on the connecting rod; the utility model relates to an engine connecting rod stress test device technical field, the mode that needs to utilize the wire has been solved to the mode of present case design a wireless conveying, and the problem that the line is complicated scheduling problem and wire takes place to roll over easily and decreases to guarantee that the data of conveying is effective, accurate.
Description
Technical Field
The utility model relates to an engine connecting rod stress test technical field specifically is an engine connecting rod stress test device.
Background
The engine connecting rod must have sufficient fatigue strength and structural rigidity, the fatigue strength is not enough, often can cause connecting rod body or connecting rod bolt fracture, and then produce the serious accident of complete machine destruction, if the rigidity is not enough, can cause the bending deformation of the body of rod and the out-of-round deformation of connecting rod major part, lead to the eccentric wear of piston, cylinder, bearing and crank pin etc. for this reason we are indispensable to engine connecting rod stress test, in prior art, when adopting wired measurement mode, under engine operating condition, the engine connecting rod is in high-speed motion along with the bent axle all the time, must design special auxiliary device and draw forth the wire, nevertheless the wire takes place the breakage easily, thereby cause the measurement system to become invalid, and measured data is not accurate enough, for this reason we design an engine connecting rod stress test device.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, the utility model provides an engine connecting rod stress test device has solved the weak point among the prior art, and in prior art, when adopting wired measurement mode, under engine operating condition, the engine connecting rod is in high-speed motion along with the bent axle always, must design special auxiliary device and draws forth the wire, nevertheless the wire takes place to roll over the damage easily to cause measurement system to become invalid, and measured data is accurate etc. inadequately.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the stress testing device for the connecting rod of the engine comprises a cylinder frame, a piston and a connecting rod, wherein the piston is positioned in the cylinder frame, the upper end of the connecting rod is connected with the piston through a piston pin, a piston pin clamping ring is arranged at the outer end of the piston pin, a connecting bearing cover is arranged at the lower end of the connecting rod, a connecting rod tile is arranged inside the connecting rod and connected with the connecting bearing cover through a connecting bearing cover bolt, a crankshaft is connected below the connecting rod, and a testing structure is arranged on the connecting rod;
the test structure comprises: the device comprises a signal acquisition and transmission module, a signal receiving and processing module, a timing module, a power supply module and a data display module;
the timing module is arranged above the signal receiving and processing module, the power module is arranged above the timing module, and the data display module is arranged at the outer end of the left side of the signal receiving and processing module.
Preferably, the signal acquisition and transmission module is one or more strain gauges.
Preferably, the signal receiving and processing module is an analog-to-digital converter, a receiving antenna and a wireless receiving control unit.
Preferably, the timing module is a timer.
Preferably, the power module includes a battery case and a lithium battery.
Preferably, the data display module is a stress tester.
Preferably, the signal acquisition and transmission module, the signal reception and processing module, the timing module, the power module and the data display module are electrically connected.
Advantageous effects
The utility model provides an engine connecting rod stress test device. The wireless transmission mode has the advantages that the mode that wires need to be used is solved, the problem that wires are complex and the wires are prone to breakage is solved, transmission data are effective and accurate, analysis and detection can be carried out on numerical values through information transmission among the modules, corresponding numerical values are analyzed, and the wireless transmission mode is simple in structure, high in sensitivity and response speed and high in measurement precision.
Drawings
Fig. 1 is the utility model discloses a front view inner structure schematic diagram of engine connecting rod stress test device.
Fig. 2 is an enlarged schematic structural diagram B of the engine connecting rod stress testing apparatus of the present invention.
Fig. 3 is the utility model discloses a structural schematic is looked after to engine connecting rod stress test device's under normal condition.
In the figure: 1-a cylinder frame; 2-a piston; 3-a connecting rod; 4-wrist pin; 5-piston pin snap ring; 6-connecting a bearing cover; 7-connecting rod tile; 8-a crankshaft; 9-a signal acquisition and transmission module; 10-a signal receiving and processing module; 11-a timing module; 12-a power supply module; 13-a data display module; 14-connecting bearing cap bolts.
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. 1-3, the present invention provides a technical solution: a stress testing device for an engine connecting rod comprises a cylinder frame 1, a piston 2 and a connecting rod 3, wherein the piston 2 is positioned in the cylinder frame 1, the upper end of the connecting rod 3 is connected with the piston 2 through a piston pin 4, the outer end of the piston pin 4 is provided with a piston pin clamping ring 5, the lower end of the connecting rod 3 is provided with a connecting bearing cap 6, a connecting rod bush 7 is arranged inside the connecting bearing cap 6 and the connecting rod 3, the connecting bearing cap 6 and the connecting rod 3 are connected through a connecting bearing cap bolt 14, a crankshaft 8 is connected below the connecting rod 3, and a testing structure is arranged on the connecting;
it should be noted that, the piston 2 is located the cylinder frame 1, the upper end of the connecting rod 3 is connected with the piston 2 through the piston pin 4, the piston 2 is used for fixing the connecting rod 3, the piston pin 4 plays a role in fixing the connecting rod 3, the outer end of the piston pin 4 is provided with the piston pin snap ring 5, the piston pin snap ring 5 is used for fixedly clamping the piston pin 4, the lower end of the connecting rod 3 is provided with the connecting bearing cap 6, the connecting bearing cap 6 is used for fixing the connecting rod, the connecting bearing cap 6 and the connecting rod 3 are internally provided with the connecting rod bush 7, the connecting bearing cap 6 and the connecting rod 3 are connected through the connecting bearing cap bolt 14, the connecting bearing cap bolt 14 is used for fixedly connecting the bearing cap 6 and the connecting rod 3, the.
A test structure comprising: the device comprises a signal acquisition and transmission module 9, a signal receiving and processing module 10, a timing module 11, a power supply module 12 and a data display module 13;
the signal acquisition and transmission module 9 is fixedly arranged at two sides in the middle of the connecting rod 3, the signal receiving and processing module 10 is arranged below the left side of the cylinder frame 1, the timing module 11 is arranged above the signal receiving and processing module 10, the power supply module 12 is arranged above the timing module 11, and the data display module 13 is arranged at the outer end of the left side of the signal receiving and processing module 10;
it should be noted that, the signal collecting and transmitting module 9 is fixedly installed at two sides of the middle of the connecting rod 3, the signal collecting and transmitting module 9 is used for collecting and transmitting information, the signal receiving and processing module 10 is installed at the lower left side of the cylinder frame 1, the signal receiving and processing module 10 is used for converting and processing the signals collected and transmitted by the signal collecting and transmitting module 9 and transmitting the signals to the data display module 13, the timing module 11 is installed above the signal receiving and processing module 10, the timing module 11 is used for timing to achieve an intermittent test, the power supply module 12 is located above the timing module 11, the power supply module 12 is used for supplying electric quantity, the data display module 13 is located at the outer left side end of the signal receiving and processing module 10, the data display module 13 is used for displaying data and recording and analyzing the data, the specific flow is, when in use, the built-in power supply is switched on, a worker carries out control operation through a programmable controller which is arranged on the built-in power supply and matched with the built-in power supply, after the operation is finished, the stand-by is carried out, when the device starts to work, the engine connecting rod 3 is driven by the piston 2 connected with the engine connecting rod to carry out reciprocating motion, so that the signal acquisition and transmission module 9 can carry out reciprocating motion along with the engine connecting rod 3, signals related to the stress of the engine connecting rod 3 can be acquired in the reciprocating motion process, then the acquired signals are sent out, the signal receiving and processing module 10 receives through an internal receiving antenna, converts analog signals into numerical signals through an analog/digital converter and then transmits the numerical signals to a stress tester of the data display module 13 for displaying data so as to carry out analysis, the timer of the timing module 11 is used for timing, so that a plurality of groups of data can be tested for comparison, the accuracy is ensured, and all processes are completed.
In the specific implementation process, further, the signal acquisition and transmission module 9 is one or more strain gauges.
In the implementation process, the signal receiving and processing module 10 is further an analog/digital converter, a receiving antenna, and a wireless receiving control unit.
In a specific implementation process, the timing module 11 is further a timer.
In one embodiment, the power module 12 further includes a battery jar and a lithium battery.
In the specific implementation process, the data display module 13 is a stress tester.
In the specific implementation process, the signal acquisition and transmission module 9, the signal reception and processing module 10, the timing module 11, the power supply module 12, and the data display module 13 are further electrically connected to each other.
It is 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. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The stress testing device for the connecting rod of the engine comprises a cylinder frame (1), a piston (2) and a connecting rod (3), and is characterized in that the piston (2) is positioned in the cylinder frame (1), the upper end of the connecting rod (3) is connected with the piston (2) through a piston pin (4), the outer end of the piston pin (4) is provided with a piston pin snap ring (5), the lower end of the connecting rod (3) is provided with a connecting bearing cover (6), a connecting rod bush (7) is arranged inside the connecting bearing cover (6) and the connecting rod (3), the connecting bearing cover (6) and the connecting rod (3) are connected through a connecting bearing cover bolt (14), a crankshaft (8) is connected below the connecting rod (3), and a testing structure is arranged on the connecting rod (3);
the test structure comprises: the device comprises a signal acquisition and transmission module (9), a signal receiving and processing module (10), a timing module (11), a power supply module (12) and a data display module (13);
the signal acquisition and transmission module (9) is fixedly arranged at two sides in the middle of the connecting rod (3), the signal receiving and processing module (10) is arranged below the left side of the cylinder frame (1), the timing module (11) is arranged above the signal receiving and processing module (10), the power supply module (12) is arranged above the timing module (11), and the data display module (13) is arranged at the outer end of the left side of the signal receiving and processing module (10).
2. The engine connecting rod stress testing device according to claim 1, characterized in that the signal acquisition and transmission module (9) is one or more strain gauges.
3. The engine connecting rod stress testing device according to claim 1, characterized in that the signal receiving and processing module (10) is an analog-to-digital converter, a receiving antenna and a wireless receiving control unit.
4. The engine connecting rod stress testing apparatus of claim 1, wherein the timing module (11) is a timer.
5. The engine connecting rod stress testing device of claim 1, wherein the power module (12) comprises a battery jar and a lithium battery.
6. The engine connecting rod stress testing device according to claim 1, characterized in that the data display module (13) is a stress tester.
7. The engine connecting rod stress testing device according to claim 1, wherein the signal acquisition and transmission module (9), the signal receiving and processing module (10), the timing module (11), the power supply module (12) and the data display module (13) are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020269738.9U CN211317754U (en) | 2020-03-07 | 2020-03-07 | Stress testing device for engine connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020269738.9U CN211317754U (en) | 2020-03-07 | 2020-03-07 | Stress testing device for engine connecting rod |
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| CN211317754U true CN211317754U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020269738.9U Active CN211317754U (en) | 2020-03-07 | 2020-03-07 | Stress testing device for engine connecting rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008544A (en) * | 2021-04-07 | 2021-06-22 | 中国人民解放军陆军装甲兵学院 | Method for determining strength of engine connecting rod |
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2020
- 2020-03-07 CN CN202020269738.9U patent/CN211317754U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008544A (en) * | 2021-04-07 | 2021-06-22 | 中国人民解放军陆军装甲兵学院 | Method for determining strength of engine connecting rod |
| CN113008544B (en) * | 2021-04-07 | 2022-05-27 | 中国人民解放军陆军装甲兵学院 | Method for determining strength of engine connecting rod |
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