Measurement data transmission device and method for temperature field of reciprocating motion component
By designing a contact data transmission device in an internal combustion engine, using the contact unit of the same material to contact and transmit data at the motion dead center, the problem of damage to the thermocouple signal line due to reciprocating motion is solved, and high reliability and long-term measurement is achieved without the need for Additional power supply makes the measurement point arrangement more free.
Patent Information
- Application Number
- CN202411135971.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-01-10
AI Technical Summary
In internal combustion engines, in the temperature field test of reciprocating parts, the thermocouple signal line is damaged due to the reciprocating movement of the parts. The existing transmission method is limited by the spatial structure and signal line, and the measurement duration is short and the high cost sensor signal is high. Amplifier and space limitations lead to limited number of measurement points and short continuous measurement time.
Design a contact data transmission device, including installing sensors on reciprocating moving parts and installing corresponding devices on fixed parts, contacting data at the moving dead center through contact units of the same material, using buffering devices to avoid impact and ensure signal Transmission reliability without additional power supply.
It realizes that the signal line does not move with the parts during the test process, improves the reliability and duration of the measurement data, and the layout of the measurement points is more free, the buffer device ensures contact reliability, and the signal line is fixed to the parts, which has high durability. The test is Long time.
Smart Images
Figure CN119290190A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of testing technology, and in particular to a device and method for measuring and transmitting data for a temperature field of a reciprocating component. Background Art
[0002] In internal combustion engines, the temperature field test of combustion chamber components is extremely important. Currently, the commonly used test methods involve the temperature plug method and the thermocouple method. Thermocouples need to transmit data through signal lines. In reciprocating components such as pistons and valves, if the signal line is directly connected to the signal processing module without additional equipment, the signal line will be damaged in just a few cycles due to the reciprocating motion of the components.
[0003] Currently, the commonly used method for transmitting measurement data is to design an auxiliary rocker arm and install the signal line in the rocker arm mechanism for transmission. This method is highly restricted by the spatial structure and is almost impossible to implement in long-stroke internal combustion engines such as low-speed engines. In addition, due to the limitation of signal lines, the measurement duration is short. The other method is to transmit measurement data through telemetry technology, but the sensor signal amplifier is expensive, and due to space constraints, the number of measurement points is limited, the module needs to be powered, and the continuous measurement time is short. Summary of the invention
[0004] The purpose of the present invention is to provide a data transmission device and method for measuring the temperature field of a reciprocating component, which does not require additional power supply, the signal line does not move with the component during the test, has high reliability, and the measurement points can be arranged more freely.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides a data transmission device for measuring the temperature field of a reciprocating component, including a sensor provided on a reciprocating component one and used to test data, a device one provided on the component one and connected to the sensor, a device two provided on the component one and used to test data and provided on a fixed component two, an external signal processing device connected to the device two, and an acquisition module connected to the external signal processing device, and data transmission, processing and acquisition are completed when the device one and the device two are in contact.
[0006] Preferably, the device 1 is arranged above or below the component 1.
[0007] Preferably, the device 1 includes a base plate 1 fixedly connected to the component 1, an insulating plate arranged on the base plate 1, and a contact unit 1 and a contact unit 2 arranged on the insulating plate.
[0008] Preferably, the device 2 includes a bottom plate 2 fixedly connected to the component 2, a buffer device arranged on the bottom plate 2, and a contact unit 3 and a contact unit 4 arranged on the buffer device.
[0009] Preferably, the base plate 1 is also fixedly connected with a connecting terminal 1, and the connecting terminal 1 connects the sensor extension line, the contact unit 1 and the contact unit 2.
[0010] Preferably, the bottom plate 2 is also fixedly connected with a connecting terminal 2, and the connecting terminal 2 is connected to the external signal processing device, the contact unit 3 and the contact unit 4.
[0011] Preferably, the contact unit 1 and the contact unit 2 are respectively made of the same material as the two thermoelectric electrodes of the sensor.
[0012] Preferably, the materials of the contact unit three and the contact unit four are the same as those of the contact unit one and the contact unit two, respectively.
[0013] Preferably, the contact unit 1 and the contact unit 3 are made of nickel-chromium material, and the contact unit 2 and the contact unit 4 are made of nickel-aluminum material.
[0014] The technical solution of the present invention also provides a method for transmitting data for measuring the temperature field of a reciprocating component. When the device 1 moves to the upper or lower dead point along with the component 1, the contact units of the device 1 and the device 2 made of the same material come into contact, and the signal is transmitted after the contact.
[0015] In summary, the present invention includes the following beneficial technical effects:
[0016] The device of the present invention does not require additional power supply, and the signal line does not move with the parts during the test, so the reliability is high, and the measurement point arrangement is relatively free. The buffer device avoids impact, ensures contact reliability, and does not require power supply. The contact unit is small in size and can be adjusted according to needs to ensure reliable contact. The signal lines (thermocouple extension lines) are all fixed on the corresponding parts and do not move with the movement of the moving parts. The reliability and durability are high, and the test time is long. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic diagram of a data transmission device and method for measuring the temperature field of a reciprocating component according to the present invention;
[0018] Figure 2 It is a structural schematic diagram of device 1 in a device and method for transmitting data for measuring the temperature field of a reciprocating component according to the present invention;
[0019] Figure 3 The present invention is a schematic structural diagram of device 2 in a device and method for transmitting data for measuring the temperature field of a reciprocating component.
[0020] Figure numerals: 1. sensor; 2. component one; 3. device one; 301. base plate one; 302. connecting terminal one; 303. insulating plate; 304. contact unit one; 305. contact unit two; 4. device two; 401. base plate two; 402. connecting terminal two; 403. buffer device; 404. contact unit three; 405. contact unit four; 5. component two; 6. external signal processing device; 7. acquisition module. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] The embodiment of the present invention discloses a device and method for transmitting data for measuring the temperature field of a reciprocating component, which is suitable for transmitting measurement data of reciprocating components, such as pistons, valves and other components in an engine.
[0023] The test data transmission device and method of the present invention is a contact transmission. The device is divided into two parts, one part is installed on the test component, and as the component reciprocates, the signal line on the sensor 1 is connected to the device, and the other part is installed on a fixed housing in the reciprocating direction, remains stationary, and is connected to the data processing equipment through a signal line. In each reciprocating motion, the two parts contact once and transmit data. This device does not require additional power supply, the signal line does not move with the component during the test process, the reliability is high, and the measurement point arrangement is relatively free.
[0024] The device is divided into two parts, the device 2 4 is installed on the fixed component 2 5, and the device 1 3 is installed on the reciprocating component 1 2, and reciprocates with the component 1 2. The sensor 1 installed on the moving part (component 1 2) for testing data is connected to the device 1 3. When the device 1 3 and the device 2 4 are in contact, data is transmitted, and the transmitted data is connected to the external signal processing device 6 and the acquisition module 7 through the wire, completing a data transmission, processing and acquisition.
[0025] Device 1 3 includes base plate 1 301, connection terminal 1 302 (optional), insulating plate 303, contact unit 1 304 and contact unit 2 305, wherein the contact units are divided into two types, using nickel-chromium and nickel-aluminum materials respectively (the material selection is the same as the two thermoelectrode materials of the thermocouple, which can be selected according to the selected thermocouple), and a nickel-chromium contact unit 1 304 and a nickel-aluminum contact unit 2 305 form a contact group. Device 1 3 is connected to moving part 1 2 through base plate 1 301, and can be arranged above or below the moving part. Connection terminal 1 302 and insulating plate 303 are fixed on base plate 1 301, and contact unit 1 304 and contact unit 2 305 are fixed on insulating plate 303. If there are many measuring points, the thermocouple extension line can be connected to connection terminal 1 302 first, and then connected to contact unit 1 304 and contact unit 2 305. If there are few measuring points, the thermocouple extension line can be directly connected to contact unit 1 304 and contact unit 2 305. Extension wires and corresponding contact elements of the same material are connected together.
[0026] Device 2 4 includes bottom plate 2 401, connection terminal 2 402, contact unit 3 404, contact unit 4 405 and buffer device 403. There are two types of contact units, using nickel-chromium and nickel-aluminum materials respectively (the material selection is the same as the two thermoelectrode materials of the thermocouple, which can be selected according to the selected thermocouple), and a nickel-chromium contact unit 3 404 and a nickel-aluminum contact unit 4 405 form a contact group. Device 2 4 is fixed to the shell through bottom plate 2 401, and connection terminal 2 402 and buffer device 403 are fixed to bottom plate 2 401. The contact unit is installed on the buffer device 403, and the extension wire of the same material is connected to the corresponding contact unit, and the extension wire is connected to the connection terminal 2 402, and then connected to the external signal processing device 6 through the connection terminal 2 402.
[0027] When device 1 3 moves to the upper (or) lower dead point with the moving part, the contact units of the same material in the two devices come into contact, and the signal is transmitted after the contact. The buffer device 403 avoids impact, ensures contact reliability, and does not require power supply. One signal point requires a group of contact units for data transmission (one group on device 1 3 and one group on device 2 4). The contact unit is small in size and can be adjusted according to needs to ensure reliable contact. Therefore, a large number of measuring points can be arranged on the moving part. In addition, the signal lines (thermocouple extension lines) are fixed on the corresponding parts and do not move with the movement of the moving parts. They have high reliability and durability and can be tested for a long time.
[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A device for measuring and transmitting data of the temperature field of a reciprocating component, characterized in that: The invention comprises a sensor (1) disposed on a reciprocating component (2) and used for testing data, a device (3) disposed on the component (2) and connected to the sensor (1), a device (4) disposed on the component (2) and used for testing data and disposed on a fixed component (5), an external signal processing device (6) connected to the device (4), and a collection module (7) connected to the external signal processing device (6), wherein data transmission, processing and collection are completed when the device (3) and the device (4) are in contact.
2. A device for measuring and transmitting temperature fields of reciprocating components according to claim 1, characterized in that: The device one (3) is arranged above or below the component one (2).
3. A device for measuring and transmitting data of the temperature field of a reciprocating component according to claim 2, characterized in that: The device one (3) comprises a base plate one (301) fixedly connected to the component one (2), an insulating plate (303) arranged on the base plate one (301), and a contact unit one (304) and a contact unit two (305) arranged on the insulating plate (303).
4. A device for measuring and transmitting data of a temperature field of a reciprocating component according to claim 3, characterized in that: The device 2 (4) comprises a bottom plate 2 (401) fixedly connected to the component 2 (5), a buffer device (403) arranged on the bottom plate 2 (401), and a contact unit 3 (404) and a contact unit 4 (405) arranged on the buffer device (403).
5. A device for measuring and transmitting data of the temperature field of a reciprocating component according to claim 4, characterized in that: The base plate 1 (301) is also fixedly connected with a connection terminal 1 (302), and the connection terminal 1 (302) is connected to the extension line of the sensor (1), the contact unit 1 (304) and the contact unit 2 (305).
6. A device for measuring and transmitting data of the temperature field of a reciprocating component according to claim 5, characterized in that: The bottom plate 2 (401) is also fixedly connected with a connection terminal 2 (402), and the connection terminal 2 (402) is connected to the external signal processing device (6), the contact unit 3 (404) and the contact unit 4 (405).
7. A device for measuring and transmitting data of the temperature field of a reciprocating component according to claim 6, characterized in that: The contact unit 1 (304) and the contact unit 2 (305) are respectively made of the same material as the two thermoelectric electrodes of the sensor (1).
8. A device for measuring and transmitting data of the temperature field of a reciprocating component according to claim 7, characterized in that: The materials of the contact unit three (404) and the contact unit four (405) are the same as those of the contact unit one (304) and the contact unit two (305), respectively.
9. A device for measuring and transmitting data of the temperature field of a reciprocating component according to claim 8, characterized in that: The contact unit one (304) and the contact unit three (404) are made of nickel-chromium material, and the contact unit two (305) and the contact unit four (405) are made of nickel-aluminum material.
10. A method for measuring data transmission device for temperature field of reciprocating parts according to any one of claims 1 to 9, characterized in that: When the device one (3) moves to the upper or lower dead point along with the component one (2), the contact units of the device one (3) and the device two (4) made of the same material come into contact, and signals are transmitted after the contact.