CN210089875U - Engine piston temperature measuring mechanism - Google Patents
Engine piston temperature measuring mechanism Download PDFInfo
- Publication number
- CN210089875U CN210089875U CN201921136723.9U CN201921136723U CN210089875U CN 210089875 U CN210089875 U CN 210089875U CN 201921136723 U CN201921136723 U CN 201921136723U CN 210089875 U CN210089875 U CN 210089875U
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- connecting rod
- piston
- fixed plate
- engine
- thermocouple wire
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Abstract
The utility model relates to an engine piston temperature measurement mechanism, including fixed plate, the hinge mechanism and piston, the hinge mechanism pass through the connecting pin by linking bridge, main connecting rod, vice connecting rod, technology connecting rod and articulate in proper order and constitute, technology connecting rod and piston pass through the piston pin and connect, fixed plate and engine oil pan fixed connection, the engine oil pan on correspond the department with the fixed plate and seted up the through-hole, the thermocouple wire is drawn forth from the through-hole, linking bridge one end is connected fixedly with the fixed plate, main connecting rod and vice connecting rod both sides are opened flutedly, the thermocouple wire is placed in the recess, the thermocouple wire is drawn forth from the piston is inside. The process connecting rod is fixedly connected with a joint, and the other end of the joint is hinged with the auxiliary connecting rod through a connecting pin. The utility model discloses measurement accuracy is higher, the undulant condition of measurable quantity temperature.
Description
Technical Field
The utility model belongs to the technical field of the engine test, in particular to engine piston temperature measuring mechanism.
Background
At present, the temperature measurement of the engine piston mostly adopts a hardness plug method, and the measurement method of the hardness plug method is to screw a quenched hardness plug into a measured part of the piston, so that the piston stably operates for a period of time under a required operating condition, then the piston is disassembled, the surface is polished, then an accurate hardness value is obtained by a hardness meter, and the corresponding temperature is found out on a standard curve, namely the temperature value of the measured point under the required operating condition. The hardness plug method firstly requires to process a plurality of holes on a measured part of the piston, and meanwhile, the processing requirement on the holes is higher, otherwise, the measurement result is easy to be inaccurate, meanwhile, the piston temperature measured by the hardness plug method can only reflect the peak temperature under a certain working condition, the fluctuation condition of the temperature cannot be reflected, and the measured piston temperature precision is low. The thermocouple method is mainly applied to low-speed engines at present and is not applied to high-speed engines mainly because a measuring lead makes inertia reciprocating linear motion along with a piston connecting rod mechanism and is easy to break and damage under the action of inertia force.
Disclosure of Invention
For solving the technical problem, the utility model provides an engine piston temperature measurement mechanism carries out piston temperature measurement on using high-speed engine with the thermocouple method, and measurement accuracy is higher, the undulant condition of measurable quantity temperature, and processing is convenient, has avoided causing the influence of error to measuring result because of processing.
The utility model discloses a realize through following technical scheme:
the utility model provides an engine piston temperature measuring mechanism, includes fixed plate 1, the hinge mechanism and piston 7, the hinge mechanism by linking bridge 2, main connecting rod 3, vice connecting rod 4, technology connecting rod 6 through connecting pin 8 articulated constitution in proper order, technology connecting rod 6 and piston 7 are connected through the piston pin, fixed plate 1 and engine oil pan fixed connection, the engine oil pan on correspond the department with the fixed plate and seted up the through-hole, the thermocouple wire is drawn forth from the through-hole, linking bridge 2 one end is connected fixedly with fixed plate 1, main connecting rod 3 and vice connecting rod 5 both sides are opened flutedly, the thermocouple wire is placed in the recess, the thermocouple wire is drawn forth from piston 7 is inside.
As the more excellent technical scheme of the utility model, technology connecting rod 6 on fixedly connected with connect 5, the other end that connects is articulated with vice connecting rod 4 through connecting pin 8.
The utility model has the advantages as follows:
the mechanism can apply a thermocouple method which has higher measurement precision and can measure the temperature fluctuation condition to a high-speed engine, well solves the problem that a lead is easy to break and damage along with the reciprocating motion of a piston connecting rod, is convenient to process, and avoids the influence of processing on the measurement result.
Drawings
FIG. 1 is a schematic structural diagram of an engine piston temperature measuring mechanism of the present invention;
FIG. 2 is a front view of the main link of the engine piston temperature measurement mechanism of the present invention;
FIG. 3 is a left side view of the main link of the engine piston temperature measurement mechanism of the present invention;
FIG. 4 is a front view of an auxiliary link of the engine piston temperature measurement mechanism of the present invention;
fig. 5 is a left side view of the auxiliary link of the engine piston temperature measuring mechanism of the present invention.
Detailed Description
The following detailed description of the invention refers to the accompanying drawings 1.
As shown in fig. 1, the utility model provides an engine piston temperature measuring mechanism, including fixed plate 1, the hinge mechanism and piston 7, the hinge mechanism by linking bridge 2, main connecting rod 3, vice connecting rod 4, technology connecting rod 6 through connecting pin 8 articulated constitution in proper order, technology connecting rod 6 and piston 7 pass through the piston pin and connect, fixed plate 1 and engine oil pan fixed connection, the engine oil pan on correspond the department with the fixed plate and seted up the through-hole, the thermocouple wire is drawn forth from the through-hole, guarantees that piston temperature measurement thermocouple wire can draw forth and measure, the linking bridge 2 other end is connected fixedly with fixed plate 1, main connecting rod 3 and 5 both sides of vice connecting rod are opened flutedly, the thermocouple wire is placed in the recess, the thermocouple wire is drawn forth from piston 7 is inside. The process connecting rod 6 is fixedly connected with a joint 5, and the other end of the joint is hinged with the auxiliary connecting rod 4 through a connecting pin 8.
As shown in fig. 2-5, the main connecting rod 3, the auxiliary connecting rod 4 and the joint 5 are connected through a connecting pin 8, and grooves are formed in two sides of the main connecting rod 3 and the auxiliary connecting rod 5 for mounting a piston temperature thermocouple wire. The process connecting rod 6 is formed by processing an engine connecting rod, one end of the process connecting rod is fixedly connected with the joint 5, and the piston connecting rod assembly does reciprocating linear motion in the working process of the engine so as to drive the whole mechanism to do swinging motion.
The utility model discloses an in the course of the work, thermocouple wire comes out from 7 insides of piston, along technology connecting rod 6, vice connecting rod 4, main connecting rod 3 and linking bridge 2, draws the outside through the opening of fixed plate 1 and with the wire at last and measures, should glue the thermocouple wire with the temperature resistant and fix, makes wire and link mechanism become whole. The fixing plate 1 is fixedly connected with an engine oil pan, and openings are formed in corresponding parts of the fixing plate and the oil pan, so that a piston temperature thermocouple wire can be led out and measured.
The utility model discloses processing the connecting rod of a piston rod assembly before the installation, processing into technology connecting rod 6, bury thermocouple one end inside piston 7, other end thermocouple wire is drawn forth the outside along technology connecting rod 6, the hinge mechanism, the opening through fixed plate 1 and oil pan at last with the wire and is measured. The thermocouple lead does swinging motion along with the up-and-down reciprocating motion of the piston, grooves are formed in two sides of the main connecting rod 3 and the auxiliary connecting rod 4 and used for embedding the thermocouple lead, and in the actual operation process, the thermocouple lead is fixed by temperature-resistant glue due to the swinging inertia force of the mechanism, so that the lead and the connecting rod mechanism are integrated.
In summary, the following steps: the utility model discloses can be according to the engine structure size of difference, design different spare parts, with the thermocouple method of the higher, the undulant condition of measurable quantity temperature of measurement accuracy use high-speed engine on, solved the wire along with piston rod reciprocating motion easy fracture, the problem of damage.
Claims (2)
1. An engine piston temperature measuring mechanism characterized in that: including fixed plate (1), the hinge mechanism and piston (7), the hinge mechanism by linking bridge (2), main connecting rod (3), vice connecting rod (4), technology connecting rod (6) through connecting pin (8) articulated constitution in proper order, technology connecting rod (6) and piston (7) are connected through the piston pin, fixed plate (1) and engine oil pan fixed connection, the engine oil pan on correspond the department with the fixed plate and seted up the through-hole, the thermocouple wire is drawn forth from the through-hole, linking bridge (2) one end is connected fixedly with fixed plate (1), main connecting rod (3) and vice connecting rod (4) both sides are opened flutedly, the thermocouple wire is placed in the recess, the thermocouple wire is drawn forth from piston (7) inside.
2. An engine piston temperature measuring mechanism as claimed in claim 1, wherein: the process connecting rod (6) is fixedly connected with a joint (5), and the other end of the joint is hinged with the auxiliary connecting rod (4) through a connecting pin (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921136723.9U CN210089875U (en) | 2019-07-19 | 2019-07-19 | Engine piston temperature measuring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921136723.9U CN210089875U (en) | 2019-07-19 | 2019-07-19 | Engine piston temperature measuring mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210089875U true CN210089875U (en) | 2020-02-18 |
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ID=69485177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921136723.9U Active CN210089875U (en) | 2019-07-19 | 2019-07-19 | Engine piston temperature measuring mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN210089875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279711A (en) * | 2021-12-23 | 2022-04-05 | 中国船舶重工集团公司第七一一研究所 | Piston heat transfer test device |
-
2019
- 2019-07-19 CN CN201921136723.9U patent/CN210089875U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279711A (en) * | 2021-12-23 | 2022-04-05 | 中国船舶重工集团公司第七一一研究所 | Piston heat transfer test device |
| CN114279711B (en) * | 2021-12-23 | 2024-03-29 | 中国船舶集团有限公司第七一一研究所 | Piston heat transfer test device |
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