CN113029359A - Temperature field detection device for cylinder parts - Google Patents
Temperature field detection device for cylinder parts Download PDFInfo
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- CN113029359A CN113029359A CN202110361569.0A CN202110361569A CN113029359A CN 113029359 A CN113029359 A CN 113029359A CN 202110361569 A CN202110361569 A CN 202110361569A CN 113029359 A CN113029359 A CN 113029359A
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000012360 testing method Methods 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000009413 insulation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/0275—Control or determination of height or distance or angle information for sensors or receivers
Abstract
The invention relates to a temperature field detection device for cylinder parts, and belongs to the technical field of temperature measurement. The device comprises a test bed, a base mechanism, an upper end cover mechanism and a sensing mechanism; the base mechanism comprises a disc-shaped base, a base motor and an insulating plug; the upper end cover mechanism comprises a heating rod and an upper end cover; the sensing mechanism comprises an infrared temperature sensor, a sliding block, a screw rod and a screw rod motor; the infrared temperature sensor is connected to the screw rod through the sliding block and the screw thread of the screw rod, and the screw rod motor drives the screw rod to rotate; the screw rod is vertically fixed on the test bed. When the device is used for detection, the detected cylinder is sleeved on the insulating plug, the heating rod is placed in the detected cylinder, and the upper end cover covers the upper port of the detected cylinder; the distance between the temperature sensors and the detected cylinder is 50mm, and the temperature sensors are opposite to the axis line of the detected cylinder. The invention combines the rotation movement of the detected cylinder with the lifting movement of the temperature sensor to accurately obtain the temperature field parameters of the detected cylinder.
Description
Technical Field
The invention belongs to the technical field of temperature measurement, and particularly relates to a temperature field detection device for a cylinder part.
Background
The cylinder parts are common part types and are widely applied to the fields of machinery, electronics, chemical engineering, textile and the like. The temperature field is an important parameter of cylinder parts such as an automobile cylinder sleeve and a printing plate cylinder, and the temperature distribution and the temperature rise rate of different positions of the cylinder parts such as the automobile cylinder sleeve have great relation with the performance and the efficiency of an engine and have important influence, so that the temperature field parameter of the cylinder parts is researched and has important practical significance. In order to know the temperature and the temperature distribution of the cylinder sleeve when an engine works, a method of pasting a large number of temperature sensors on the outer wall of the cylinder sleeve to acquire experimental data is generally adopted, and the method of pasting the temperature sensors has the following defects: 1. the situation that gaps are generated due to infirm adhesion, even fall off and the like easily occurs; 2. too many temperature sensors stuck to the outer wall can interfere with the temperature field of the cylinder sleeve; 3. the space of the outer wall of the cylinder sleeve is limited, and the space for pasting the sensor is also limited, so that the number of sampling position points is insufficient, and the omnibearing temperature and temperature field parameters cannot be measured. Therefore, the method is complicated to operate and has low accuracy, so that the accuracy of the analysis result cannot be guaranteed generally. When the diesel engine cylinder sleeve temperature field measuring device measures a diesel engine cylinder sleeve temperature field, the cylinder sleeve needs to be processed, namely, a mounting groove is processed on the cylinder sleeve, a positioning counter bore is formed in the bottom of the mounting groove, and a thermocouple is fixed in the positioning counter bore through a welding process. The method can solve the problem of infirm sticking of the temperature sensor to a certain extent, but still cannot solve the problems of temperature field interference and insufficient sampling quantity.
Disclosure of Invention
In order to realize the trueness and reliability of the detection data of the temperature field of the cylindrical part, the invention provides a temperature field detection device for the cylindrical part.
A temperature field detection device for cylindrical parts comprises a square table-shaped test bed 8, a base mechanism, an upper end cover mechanism and a sensing mechanism;
the base mechanism comprises a disc-shaped base 6, a base motor 9 and an insulating plug 17; the base 6 is arranged on the test bed 8 through a bearing and a rotating shaft, the base motor 9 is arranged on the bottom surface of the test bed 8, and an output shaft of the base motor 9 is fixedly connected with the lower end of the rotating shaft through a base bearing 7; the insulating plug 17 is fixedly arranged on the top surface of the base 6;
the upper end cover mechanism comprises a heating rod 1 and a disc-shaped upper end cover 4; the heating rod 1 is fixedly arranged on an upper end cover 4 through an upper cover bearing 3;
the sensing mechanism comprises a temperature sensor 12, a sliding block 13, a screw rod 14 and a screw rod motor 16; the temperature sensor 12 is fixedly arranged on a sliding block 13, the sliding block 13 is connected with a screw rod 14 through threads, and an output shaft of a screw rod motor 16 is fixedly connected with the upper end of the screw rod 14; the lower end of the screw rod 14 is fixed on the test bed 8;
when the device is used for detection, the lower port of the detected cylinder is sleeved on the insulating plug 17 of the base 6, the heating rod 1 is placed into the detected cylinder, and the upper end cover 4 covers the upper port of the detected cylinder;
the distance between the temperature sensor 12 and the outer wall of the detected cylinder is 50mm, and the temperature sensor is opposite to the axis of the detected cylinder.
The further concrete technical scheme is as follows:
the base motor 9 is a two-phase 57 series hybrid stepper motor.
The base bearing 7 and the upper cover bearing 3 are both rolling bearings.
The lead screw motor 16 is a two-phase 57 series hybrid stepper motor.
The heating rod 1 is provided with a circular truncated cone, the upper part of the circular truncated cone is provided with a screw, the upper end cover 4 is sleeved on the screw, and the upper end cover 4 is fixedly arranged on the screw through the matching of a nut and the screw; the lower part of the circular truncated cone is provided with a heating rod.
The insulating plug 17 is cylindrical, and the insulating plug 17 is fixedly arranged on the base 6 through a screw 8 at the axial center.
The temperature sensor is an infrared temperature sensor, and the working temperature is-20 ℃ to 120 ℃.
The beneficial technical effects of the invention are embodied in the following aspects:
1. the invention uses the method of the non-contact infrared temperature sensor to replace the method of pasting the temperature sensor on the detected cylinder, so that the sampling data is more real and reliable. Firstly, can not appear because temperature sensor pastes insecure and lead to the unreliable problem of detection data, its two also can not lead to the temperature field of surveyed the drum to receive the problem of influence because of being pasted temperature sensor by the drum outer wall.
2. The invention does not need to carry out any detection pretreatment on the detected cylinder, and can simplify the detection steps, reduce interference factors and reduce the detection cost while ensuring the detected cylinder to be complete and independent.
3. The invention can measure the omnibearing temperature data and the temperature rise condition of the detected cylinder by combining the rotating motion of the detected cylinder and the lifting motion of the infrared temperature sensor 12, thereby obtaining the temperature field parameter of the detected cylinder.
4. The base motor, the screw rod motor and the infrared temperature sensor are centralized on the acquisition control card for processing, and the advantage of the method is that the movement of the base motor and the screw rod motor and the data acquisition of the infrared temperature sensor can be synchronously coordinated.
5. Because the heating rod needs to be connected with a power line, the heating rod cannot rotate together with the base. For making the base rotatory and the heating rod is fixed, through fixing the heating rod on the inner race of upper end cover bearing, and the upper end cover is fixed in the outer lane of upper end cover bearing, when the base drives to be detected drum and upper end cover rotatory, the heating rod will not rotate thereupon, therefore the motion separation of heating rod and upper end cover can be realized through the upper end cover bearing.
6. The arrangement of the upper end cover boss and the heat insulation plug improves the heat insulation effect in the detected cylinder and reduces heat loss of the heating environment.
7. The invention can accurately obtain real-time temperature data of the outer wall of the cylinder, can completely acquire the temperature distribution conditions of the cylinder under different heating conditions, can obtain complete and accurate cylinder temperature field parameters so as to better serve the design of cylinder parts, and has good practical invention significance.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a right side view of the device of the present invention.
Fig. 3 is a top view of the apparatus of the present invention.
Sequence numbers in the upper figure: the device comprises a heating rod 1, a nut 2, an upper cover bearing 3, an upper end cover 4, a detected cylinder 5, a base 6, a base bearing 7, a test bed 8, a base motor 9, a temperature sensor 12, a sliding block 13, a screw rod 14, a sleeve 15, a screw rod motor 16, a heat insulation plug 17 and a screw 18.
Detailed Description
The invention will now be further described by way of example with reference to the accompanying drawings.
Examples
Referring to fig. 1, a temperature field detection device for cylindrical parts comprises a square table-shaped test bed 8, a base mechanism, an upper end cover mechanism and a sensing mechanism.
Referring to fig. 2, the base mechanism includes a disc-shaped base 6, a base motor 9, and an insulating plug 17. The base motor 9 is a two-phase 57-series hybrid stepper motor. The base 6 is arranged on the test bed 8 through a bearing and a rotating shaft; the output shaft of the base motor 9 is fixedly connected with the lower end of the rotating shaft through a base bearing 7, and the base bearing 7 is a rolling bearing. And the base motor 9 is located on the bottom surface of the test stand 8. The insulating plug 17 is cylindrical, and the insulating plug 17 is fixedly mounted on the top surface of the base 6 through a screw 8 at the axial center.
Referring to fig. 1 and 2, the upper cap mechanism includes a heating rod 1 and a disc-shaped upper cap 4. The heating rod 1 is provided with a circular truncated cone, the upper part of the circular truncated cone is provided with a screw, the upper end cover 4 is sleeved on the screw, and the upper end cover 4 is fixedly arranged on the screw through the matching of a nut and the screw; the lower part of the circular truncated cone is provided with a heating rod. The heating rod is fixedly arranged on the upper end cover 4 through an upper cover bearing 3, and the upper cover bearing 3 is a rolling bearing.
Referring to fig. 1 and 3, the sensing mechanism includes a temperature sensor 12, a slider 13, a lead screw 14, and a lead screw motor 16. The lead screw motor 16 is a two-phase 57-series hybrid stepper motor. The temperature sensor 12 is fixedly arranged on a sliding block 13, the sliding block 13 is connected with a screw rod 14 through threads, and an output shaft of a screw rod motor 16 is fixedly connected with the upper end of the screw rod 14; the lower end of the screw rod 14 is fixed on the test bed 8.
The temperature sensor is an infrared temperature sensor, and the working temperature is-20 ℃ to 120 ℃.
The following examples are merely illustrative of the present invention and are intended to illustrate and describe specific embodiments of the present invention and therefore should not be construed to limit the scope of the present invention.
The working principle of the present invention is explained in detail as follows:
referring to fig. 2, the detected cylinder 5 is placed on the base 6, the heat insulation plug 17 and the inner wall of the detected cylinder 5 form clearance fit to realize positioning, the heating rod 1 is installed on the upper end cover 4, the hexagon nut 2 is screwed, the upper end cover 4 covers the detected cylinder 5, and the boss on the upper end cover 4 and the inner wall of the detected cylinder 5 form clearance fit to perform positioning.
Referring to fig. 3, the temperature sensor 12 is spaced from the outer wall of the cylinder 5 to be detected by 50mm, and faces the axial line of the cylinder 5 to be detected. And starting the screw motor 16, adjusting the position of the temperature sensor 12 to align the temperature sensor with the top of the detected cylinder 5, wherein the top position of the detected cylinder 5 is set as the starting point of the temperature sensor 12. The temperature sensor 12 is moved downward from the starting position until it is aligned with the bottom of the detected cylinder 5, and the position of the bottom of the detected cylinder 5 is set as the end point of the temperature sensor 12. The temperature sensor 12 is moved back to the starting point.
Starting the heating rod 1, starting the screw rod motor 16, enabling the temperature sensor 12 to move downwards at a constant speed from the starting position, and simultaneously collecting and storing the temperature from the top to the bottom of the detected cylinder 5 in the axial direction; when the temperature sensor 12 moves to the end point, the collection is stopped. Wherein the heating rod 1 keeps the output power constant by controlling the input voltage and current thereof. The temperature sensor 12 is moved back to the starting point and at the same time the base motor 9 is activated controlling the base 6 to rotate 10 deg. clockwise or counterclockwise. The steps are 1 cycle, and under the subdivision condition that the base 6 rotates 10 degrees every time, the measurement of the omnibearing temperature field parameters of the detected cylinder 5 needs to be cycled 36 times, namely the measurement is finished when the rotation angle is 360 degrees. The subdivision can be controlled by varying the angle of each rotation of the base 6. The smaller the angle of each rotation is, the more comprehensive the obtained cylinder temperature field parameters are.
Under the condition of continuous measurement, the temperature field change data changing along with time can be finally obtained, and the measurement time is set according to the requirements of a user.
It should be noted that: the heating rod is made of a dry-burning heating resistance wire, heating is carried out by direct power supply of alternating current, a silicon controlled voltage regulating circuit is designed in order to achieve adjustable heating voltage and current, a current-voltage double-display meter is used in the circuit, and the current value and the voltage value of the alternating current can be displayed in real time. The heating power of the heating rod is not suitable to be too high, and the recommended power range of the conventional experiment is as follows: 20-80W.
Pretreatment is not needed before the detection of the detected piece cylinder, and the initial temperature of the detection is only at normal temperature.
The measuring time can be set according to the requirement, and the collected temperature data is more along with the increase of the measuring time.
Claims (7)
1. A temperature field detection device for cylinder class part which characterized in that: comprises a square table-shaped test bed (8), a base mechanism, an upper end cover mechanism and a sensing mechanism;
the base mechanism comprises a disc-shaped base (6), a base motor (9) and an insulating plug (17); the base (6) is arranged on the test bed (8) through a bearing and a rotating shaft, the base motor (9) is arranged on the bottom surface of the test bed (8), and an output shaft of the base motor (9) is fixedly connected with the lower end of the rotating shaft through a base bearing (7); the insulating plug (17) is fixedly arranged on the top surface of the base (6);
the upper end cover mechanism comprises a heating rod (1) and a disc-shaped upper end cover (4); the heating rod (1) is fixedly arranged on the upper end cover (4) through an upper cover bearing (3);
the sensing mechanism comprises a temperature sensor (12), a sliding block (13), a screw rod (14) and a screw rod motor (16); the temperature sensor (12) is fixedly arranged on the sliding block (13), the sliding block (13) is connected with the screw rod (14) through threads, and an output shaft of the screw rod motor (16) is fixedly connected with the upper end of the screw rod (14); the lower end of the screw rod (14) is fixed on the test bed (8);
when the device is used for detection, the lower port of a detected cylinder is sleeved on an insulating plug (17) of a base (6), a heating rod (1) is placed into the detected cylinder, and an upper end cover (4) covers the upper port of the detected cylinder;
the distance between the temperature sensor (12) and the outer wall of the detected cylinder is 50mm, and the temperature sensor is opposite to the axis of the detected cylinder.
2. The temperature field detection device for the cylinder part according to claim 1, wherein: the base motor (9) is a two-phase 57 series hybrid stepping motor.
3. The temperature field detection device for the cylinder part according to claim 1, wherein: the base bearing (7) and the upper cover bearing (3) are both rolling bearings.
4. The temperature field detection device for the cylinder part according to claim 1, wherein: the screw motor (16) is a two-phase 57 series hybrid stepping motor.
5. The temperature field detection device for the cylinder part according to claim 1, wherein: the heating rod (1) is provided with a circular truncated cone, the upper part of the circular truncated cone is provided with a screw rod, the upper end cover (4) is sleeved on the screw rod, and the upper end cover (4) is fixedly arranged on the screw rod through the matching of a nut and the screw rod; the lower part of the circular truncated cone is provided with a heating rod.
6. The temperature field detection device for the cylinder part according to claim 1, wherein: the insulating plug (17) is cylindrical, and the insulating plug (17) is fixedly arranged on the base (6) through a screw (8) at the axial center.
7. The temperature field detection device for the cylinder part according to claim 1, wherein: the temperature sensor is an infrared temperature sensor, and the working temperature is (-20) DEG C-120 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110361569.0A CN113029359A (en) | 2021-04-02 | 2021-04-02 | Temperature field detection device for cylinder parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110361569.0A CN113029359A (en) | 2021-04-02 | 2021-04-02 | Temperature field detection device for cylinder parts |
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| Publication Number | Publication Date |
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| CN113029359A true CN113029359A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110361569.0A Pending CN113029359A (en) | 2021-04-02 | 2021-04-02 | Temperature field detection device for cylinder parts |
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| CN (1) | CN113029359A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353964A (en) * | 2022-03-21 | 2022-04-15 | 北矿智云科技(北京)有限公司 | Detection system and method for temperature of semi-autogenous mill barrel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050146065A1 (en) * | 2004-01-07 | 2005-07-07 | Cochran Don W. | Method and apparatus for the measurement and control of both the inside and outside surface temperature of thermoplastic preforms during stretch blow molding operations |
| CN204043793U (en) * | 2014-05-14 | 2014-12-24 | 中国原子能科学研究院 | A kind of measurement mechanism measuring isotope heat source surface temperature |
| CN208588471U (en) * | 2018-02-08 | 2019-03-08 | 重庆科创职业学院 | A kind of infrared fast temperature detection device |
| CN110186671A (en) * | 2019-05-17 | 2019-08-30 | 西北工业大学 | A kind of heat transfer of gear and thermometric testing stand |
| CN210533554U (en) * | 2019-07-11 | 2020-05-15 | 广东金鉴实验室科技有限公司 | Microscopic heat distribution testing equipment |
| CN210571068U (en) * | 2019-09-03 | 2020-05-19 | 东风康明斯发动机有限公司 | Diesel engine cylinder sleeve temperature field measuring device |
-
2021
- 2021-04-02 CN CN202110361569.0A patent/CN113029359A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050146065A1 (en) * | 2004-01-07 | 2005-07-07 | Cochran Don W. | Method and apparatus for the measurement and control of both the inside and outside surface temperature of thermoplastic preforms during stretch blow molding operations |
| CN204043793U (en) * | 2014-05-14 | 2014-12-24 | 中国原子能科学研究院 | A kind of measurement mechanism measuring isotope heat source surface temperature |
| CN208588471U (en) * | 2018-02-08 | 2019-03-08 | 重庆科创职业学院 | A kind of infrared fast temperature detection device |
| CN110186671A (en) * | 2019-05-17 | 2019-08-30 | 西北工业大学 | A kind of heat transfer of gear and thermometric testing stand |
| CN210533554U (en) * | 2019-07-11 | 2020-05-15 | 广东金鉴实验室科技有限公司 | Microscopic heat distribution testing equipment |
| CN210571068U (en) * | 2019-09-03 | 2020-05-19 | 东风康明斯发动机有限公司 | Diesel engine cylinder sleeve temperature field measuring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353964A (en) * | 2022-03-21 | 2022-04-15 | 北矿智云科技(北京)有限公司 | Detection system and method for temperature of semi-autogenous mill barrel |
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Application publication date: 20210625 |