Temperature monitoring system for metal material heat treatment

Abstract

The invention discloses a temperature monitoring system for metal material heat treatment, and relates to the technical field of temperature monitoring. According to the invention, the heat-sensitive sensor is installed in the low-pressure area of the temperature measuring cylinder, and the natural diffusion and concentration principle of hot air is utilized, so that efficient non-contact temperature monitoring is realized. By means of the design, the problem that a sensor is damaged due to overheating in a traditional contact type temperature measuring method is solved, and meanwhile the precision and reliability of temperature measurement are improved; and heat dissipation is carried out through evaporation and condensation circulation of cooling liquid, and compared with a traditional air cooling or water cooling system, the device has obvious advantages in the aspects of energy saving and heat dissipation effects. Due to the optimized flow path design of the cooling liquid in the cooling pool, the heat dissipation efficiency is further improved, and stable operation of equipment in a high-temperature environment is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of temperature monitoring, and in particular to a temperature monitoring system for heat treatment of metal materials. Background Art

[0002] Most of the existing temperature monitoring equipment uses contact temperature measurement methods, such as thermocouples and thermistors. Although these methods can directly measure the temperature of the workpiece surface, they have some obvious disadvantages. First, the contact temperature measurement device is easily affected by the excessively high surface temperature of the workpiece, which causes damage to the sensor and affects the service life of the equipment. Secondly, this type of device needs to be in direct contact with the workpiece during the measurement process, which can easily cause scratches or deformation on the surface of the workpiece, affecting the quality of the workpiece. In addition, traditional heat dissipation methods mostly use air cooling or water cooling. These methods not only have high energy consumption, but also have limited heat dissipation effects in high temperature environments, which can easily cause the equipment to overheat, thereby affecting its normal operation. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a temperature monitoring system for heat treatment of metal materials, comprising two symmetrically arranged cooling rings, the two cooling rings are fixed as a whole by a plurality of connecting frames, reinforcement rings are fixed on the opposite back sides of the two cooling rings, measuring sliding frames are slidably mounted on the two reinforcement rings, a temperature measuring cylinder rotating sleeve is fixed on the measuring sliding frame, a temperature measuring cylinder is rotatably mounted inside the temperature measuring cylinder rotating sleeve, and a thermistor for monitoring temperature is arranged inside the temperature measuring cylinder; the cooling ring and the reinforcement ring are fixed to a support plate through a monitoring support seat, two sliding rod support seats are fixedly mounted on the support plate, a conveying platform is vertically slidably mounted on the two sliding rod support seats through the sliding rods, and a plurality of rollers are arranged on the conveying platform for conveying the workpiece to be heat treated.

[0004] Preferably, a plurality of rotating plates are fixed on the inner wall of the temperature measuring cylinder along its radial direction, wherein the thermistor is fixed on the rotating plate, and the temperature measuring point of the thermistor is located at the rotation center of the temperature measuring cylinder.

[0005] Preferably, a baffle is installed at the opening of the temperature measuring tube by bolts, a through hole is provided at the center of the baffle, the baffle is slidingly matched with the smooth rod of the bolt, and the bolt is fixedly matched with the temperature measuring tube to adjust the movable range of the baffle on the temperature measuring tube.

[0006] Preferably, a temperature measuring motor cooling cover is fixedly installed on the rotating sleeve of the temperature measuring cylinder, and the temperature measuring motor and the planetary gearbox are fixed inside the temperature measuring motor cooling cover, wherein the input shaft of the planetary gearbox is fixed to the output shaft of the temperature measuring motor, and the output shaft of the planetary gearbox is fixed to the temperature measuring cylinder, and the interior of the temperature measuring motor cooling cover is hollow, and two connecting pipe openings are arranged on the temperature measuring motor cooling cover.

[0007] Preferably, the inner sides of the two cooling rings are both rotated and sealed with a sealing rotating ring, which is fixed to a connecting pipe opening provided on the temperature measuring motor cooling cover, so that the temperature measuring motor cooling cover is connected to the inside of the cooling ring, and the two cooling rings are also provided with cooling circulation docking pipes, and the two cooling circulation docking pipes are respectively fixedly connected with a first cooling circulation pipe and a second cooling circulation pipe, wherein a water pump is installed in series on the first cooling circulation pipe, and the first cooling circulation pipe and the second cooling circulation pipe are fixedly connected with a cooling pool at one end away from the cooling ring, and a plurality of cross-arranged partition plates are fixed inside the cooling pool for extending the flow path of the cooling water.

[0008] Preferably, an evaporation chamber is fixedly sealed on the cooling pool, and cooling fins are fixedly sealed and installed on the evaporation chamber. The interior of the cooling fins is hollow and communicated with the evaporation chamber and the interior of the cooling pool. A plurality of sliding pools are fixed on the inner wall of the evaporation chamber. The sliding pools are located directly below the corresponding cooling fins, and all the sliding pools are inclined. The lowest end of the sliding pool points to one side of the first cooling circulation pipe. A cooling nozzle is fixed on the side of the cooling fin. The cooling nozzle is connected to the external cold air through a pipe, and a blower fan is provided in the pipe to drive the external cold air into the cooling fins.

[0009] Preferably, a gear ring is rotatably mounted on one of the reinforcement rings, the gear ring is fixedly matched with the measuring slide frame, an adjustment motor is fixedly mounted on the monitoring support seat, and a gear meshing with the gear ring is fixedly mounted on the output shaft of the adjustment motor.

[0010] Preferably, a frame-type sliding frame is slidably installed on the support plate, and the frame-type sliding frame is movably connected to one end of the conveying platform through a connecting rod to adjust the distance between the conveying platform and the support plate. A through hole is opened at a position on the support plate corresponding to the sliding rod.

[0011] Preferably, two pushing cylinders are fixed on the support plate, and pushing bars are fixed to the ends of the telescopic rods of the two pushing cylinders, wherein the frame-type sliding frame is fixedly matched with the pushing bars, the support plate is fixed on the overhead seat, and a platform cover is also fixed on the support plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention realizes efficient non-contact temperature monitoring by installing the thermistor in the low-pressure area of ​​the temperature measuring tube and utilizing the natural diffusion and concentration principle of hot air. This design avoids the problem of sensor overheating and damage in the traditional contact temperature measurement method, while improving the accuracy and reliability of temperature measurement; (2) The present invention utilizes the evaporation and condensation cycle of the coolant to dissipate heat. Compared with the traditional air cooling or water cooling system, the device has obvious advantages in energy saving and heat dissipation effect. The optimized flow path design of the coolant in the cooling pool further improves the heat dissipation efficiency and ensures the stable operation of the equipment in a high temperature environment; (3) The present invention can accurately control the rotation and position adjustment of the temperature measuring tube through the cooperation of the gear ring transmission system and the adjustment motor to ensure all-round temperature monitoring of the workpiece surface. This design not only improves the coverage and uniformity of temperature measurement, but also can adapt to workpieces of different sizes and shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a structural schematic diagram of the frame type sliding frame of the present invention.

[0015] Figure 3 Schematic diagram of the gear ring structure of the present invention.

[0016] Figure 4 It is a schematic diagram of the structure of the cooling fins of the present invention.

[0017] Figure 5 It is a schematic diagram of the cooling ring structure of the present invention.

[0018] Figure 6 This is a schematic diagram of the structure of the temperature measuring motor cooling cover of the present invention.

[0019] Figure 7 It is a structural schematic diagram of the rotating plate of the present invention.

[0020] Figure 8 It is a schematic diagram of the structure of the temperature measuring tube of the present invention.

[0021] In the figure: 101- overhead seat; 102- platform cover; 103- support plate; 104- push bar; 105- push cylinder; 106- frame type sliding frame; 107- connecting rod; 108- sliding rod support seat; 109- sliding rod; 110- conveying platform; 111- monitoring support seat; 112- cooling ring; 113- connecting frame; 114- gear ring; 115- measuring sliding frame; 116- gear; 117- regulating motor; 118- reinforcing ring; 119- cooling fin; 120- steam The chamber; 121-cooling nozzle; 122-sliding pool; 123-partition plate; 124-cooling pool; 125-first cooling circulation pipe; 126-water pump; 127-second cooling circulation pipe; 128-cooling circulation butt joint pipe; 129-sealing rotating ring; 130-temperature measuring motor cooling cover; 131-temperature measuring cylinder rotating sleeve; 132-temperature measuring motor; 133-planetary gearbox; 134-temperature measuring cylinder; 135-baffle; 136-bolt; 137-rotating plate; 138-thermal sensor. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-8 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0023] The present invention provides a temperature monitoring system for heat treatment of metal materials, comprising two symmetrically arranged cooling rings 112, the two cooling rings 112 are fixed as a whole by a plurality of connecting frames 113, the opposite back surfaces of the two cooling rings 112 are fixed with reinforcement rings 118, measuring sliding frames 115 are slidably mounted on the two reinforcement rings 118, a temperature measuring tube rotating sleeve 131 is fixed on the measuring sliding frame 115, a temperature measuring tube 134 is rotatably mounted inside the temperature measuring tube rotating sleeve 131, and a thermistor 138 for monitoring temperature is arranged inside the temperature measuring tube 134; the cooling rings 112 and the reinforcement rings 118 are fixed on a support plate 103 through a monitoring support seat 111, two sliding rod support seats 108 are fixedly mounted on the support plate 103, a conveying platform 110 is vertically slidably mounted on the two sliding rod support seats 108 through sliding rods 109, and a plurality of rollers are arranged on the conveying platform 110 for conveying workpieces to be heat treated. A plurality of rotating plates 137 are fixed along the radial direction of the inner wall of the temperature measuring cylinder 134, wherein the thermistor 138 is fixed on the rotating plate 137, and the temperature measuring point of the thermistor 138 is located at the rotation center of the temperature measuring cylinder 134. A baffle plate 135 is installed at the opening of the temperature measuring cylinder 134 through a bolt 136, and a through hole is provided at the center of the baffle plate 135. The baffle plate 135 is slidably matched with the polished rod of the bolt 136, and the bolt 136 is fixedly matched with the temperature measuring cylinder 134 to adjust the range of motion of the baffle plate 135 on the temperature measuring cylinder 134. A temperature measuring motor cooling cover 130 is fixedly installed on the temperature measuring cylinder rotating sleeve 131, and a temperature measuring motor 132 and a planetary gearbox 133 are fixed inside the temperature measuring motor cooling cover 130, wherein the input shaft of the planetary gearbox 133 is fixed to the output shaft of the temperature measuring motor 132, and the output shaft of the planetary gearbox 133 is fixed to the temperature measuring cylinder 134, and the interior of the temperature measuring motor cooling cover 130 is hollow, and two connecting pipe openings are set on the temperature measuring motor cooling cover 130. The inner sides of the two cooling rings 112 are both rotationally sealed with a sealing rotating ring 129, and the sealing rotating ring 129 is fixed to the connecting pipe opening provided on the temperature measuring motor cooling cover 130, so that the temperature measuring motor cooling cover 130 is connected to the inside of the cooling ring 112, and the two cooling rings 112 are also provided with cooling circulation docking pipes 128, and the two cooling circulation docking pipes 128 are respectively fixedly connected with a first cooling circulation pipe 125 and a second cooling circulation pipe 127, wherein the first cooling circulation pipe 125 is installed in series with a water pump 126, and the first cooling circulation pipe 125 and the second cooling circulation pipe 127 are fixedly connected with a cooling pool 124 at one end away from the cooling ring 112, and a plurality of cross-arranged partition plates 123 are fixed inside the cooling pool 124 for extending the flow path of cooling water.An evaporation chamber 120 is fixedly sealed on the cooling pool 124, and a cooling fin 119 is fixedly sealed on the evaporation chamber 120. The interior of the cooling fin 119 is hollow and communicates with the interior of the evaporation chamber 120 and the cooling pool 124. A plurality of sliding pools 122 are fixed on the inner wall of the evaporation chamber 120. The sliding pools 122 are located directly below the corresponding cooling fins 119, and all the sliding pools 122 are inclined. The lowest end of the sliding pool 122 points to one side of the first cooling circulation pipe 125. A cooling nozzle 121 is fixed on the side of the cooling fin 119. The cooling nozzle 121 is connected to the external cold air through a pipe, and a blower fan is provided in the pipe to drive the external cold air into the cooling fin 119. A gear ring 114 is rotatably mounted on one of the reinforcing rings 118, and the gear ring 114 is fixedly matched with the measuring sliding frame 115. An adjusting motor 117 is fixedly mounted on the monitoring support seat 111, and a gear 116 meshing with the gear ring 114 is fixedly mounted on the output shaft of the adjusting motor 117. A frame-type sliding frame 106 is slidably mounted on the support plate 103, and the frame-type sliding frame 106 is movably connected to one end of the conveying platform 110 through a connecting rod 107, and is used to adjust the distance between the conveying platform 110 and the support plate 103. A through hole is provided at a position corresponding to the sliding rod 109 on the support plate 103. Two push cylinders 105 are also fixed on the support plate 103, and push cross bars 104 are fixed at the ends of the telescopic rods of the two push cylinders 105, wherein the frame-type sliding frame 106 is fixedly matched with the push cross bars 104, and the support plate 103 is fixed on the overhead seat 101, and a platform cover 102 is also fixed on the support plate 103.

[0024] The working principle of a temperature monitoring system for heat treatment of metal materials disclosed in the present invention is as follows: controlling the extension and retraction of the telescopic rod of the push cylinder 105 can drive the frame-type sliding frame 106 to slide on the support plate 103, and the sliding of the frame-type sliding frame 106 will drive the conveying platform 110 to move vertically through the connecting rod 107. At this time, the sliding rod 109 and the sliding rod support seat 108 slide relative to each other, and the vertical movement of the conveying platform 110 will change the distance between the conveying platform 110 and the support plate 103, and at the same time, it can also change the distance between the conveying platform 110 and the temperature measuring tube rotating sleeve 131, so it can change The distance between the temperature measuring cylinder rotating sleeve 131 and the workpiece to be heat treated is adjusted by controlling the motor 117. The output shaft of the adjusting motor 117 drives the gear 116 to rotate, and the gear 116 drives the gear ring 114 to rotate. At this time, the measuring slide frame 115 fixed to the gear ring 114 will rotate accordingly, so that the measuring slide frame 115 slides on the reinforcing ring 118. Therefore, the temperature measuring cylinder rotating sleeve 131 fixed on the measuring slide frame 115 will rotate around the surface of the workpiece to be heat treated, thereby monitoring the temperature of different positions of the workpiece, thereby ensuring that the temperature of the workpiece before heat treatment is within an acceptable range.

[0025] The specific steps of monitoring the temperature are: taking high-temperature air samples, starting the temperature measuring motor 132, the output shaft of the temperature measuring motor 132 drives the input shaft of the planetary gearbox 133 to rotate, the output shaft of the planetary gearbox 133 drives the temperature measuring cylinder 134 to rotate, and the rotating plate 137 inside the temperature measuring cylinder 134 will rotate accordingly, thereby causing the air inside the temperature measuring cylinder 134 to rotate, at which time most of the air molecules will move toward the inner wall of the temperature measuring cylinder 134, so that a low-pressure area is formed at the rotation center of the temperature measuring cylinder 134, that is, there are fewer air molecules. The hot air will diffuse to the low-pressure area inside the temperature measuring cylinder 134, and the hot air will gather in the low-pressure area at the rotation center of the temperature measuring cylinder 134. The hot air initially sucked in by the temperature measuring cylinder 134, or the hot air retained in the temperature measuring cylinder 134, will diffuse to the low-pressure area inside the temperature measuring cylinder 134 (the kinetic energy of the hot air is higher) due to the low density of air molecules. In this way, the unheated air in the air can be filtered out, and the low-pressure area in the center of the temperature measuring cylinder 134 will be concentrated in the low-pressure area. The domain is provided with a thermistor 138, through which the temperature of the air in the area can be monitored. Since the distance between the temperature measuring tube 134 and the workpiece is fixed, the temperature of the air heated by the workpiece is also fixed. Therefore, the temperature of the workpiece can be measured by measuring the temperature of the air (the temperature measured by the thermistor 138 is definitely lower than the actual temperature of the workpiece. This is because there will be heat loss in air propagation. When the air is still, this loss depends on the distance from the heat source. Therefore, compensation can be made. The greater the distance between the thermistor 138 and the workpiece, the greater the heat loss. The temperature loss value can be calculated based on the measured distance and the known air thermal conductivity coefficient, and the measurement result can be corrected). In this way, the thermistor 138 does not need to contact the workpiece, thus avoiding overheating and damage of the thermistor 138. At the same time, most of the hot air is gathered at the position of the rotation center of the temperature measuring tube 134. Therefore, the temperature at this position is higher, which enables the thermistor 138 to measure the temperature more accurately and more closely fit the actual temperature of the workpiece.

[0026] In order to ensure that the temperature measuring motor 132 is in a low-temperature working state, it is necessary to dissipate heat for the temperature measuring motor 132. First, the cooling fins 119 are cooled by cold air, and then the water pump 126 is started. The water pump 126 will cool the liquid (electronic fluoride liquid) and flow between the cooling pool 124 and the temperature measuring motor cooling cover 130 (through two cooling rings 112, the cooling cycle butt pipe 128 and the corresponding first cooling cycle pipe 125 and second cooling cycle pipe 127), and the high temperature inside the temperature measuring motor cooling cover 130 is transferred to the cooling pool 124, and then the coolant is evaporated by heat, and the evaporated gas at this time It will pass through the sliding pool 122 (there are gaps between the multiple sliding pools 122) and move to the cooling fins 119. Since the temperature of the cooling fins 119 is low, it will condense on the cooling fins 119. The condensed coolant will fall onto the sliding pool 122 under the action of gravity (because the sliding pool 122 is arranged directly below the cooling fins 119), slide along the sliding pool 122 to the cooling pool 124 (close to one end of the first cooling circulation pipe 125), and re-circulate to the temperature measuring motor cooling cover 130 under the action of the water pump 126, thereby ensuring that the temperature inside the temperature measuring motor cooling cover 130 does not exceed the standard.

Claims

1. A temperature monitoring system for heat treatment of metal materials, characterized in that: The invention comprises two symmetrically arranged cooling rings (112), the two cooling rings (112) are fixed as a whole via a plurality of connecting frames (113), the opposite back surfaces of the two cooling rings (112) are fixed with reinforcing rings (118), the two reinforcing rings (118) are slidably mounted with measuring sliding frames (115), the measuring sliding frames (115) are fixed with a temperature measuring cylinder rotating sleeve (131), a temperature measuring cylinder (134) is rotatably mounted inside the temperature measuring cylinder rotating sleeve (131), and a thermistor (138) for monitoring temperature is arranged inside the temperature measuring cylinder (134); The cooling ring (112) and the reinforcing ring (118) are fixed on the support plate (103) via a monitoring support seat (111). Two sliding rod support seats (108) are fixedly mounted on the support plate (103). A conveying platform (110) is vertically slidably mounted on the two sliding rod support seats (108) via sliding rods (109). A plurality of rollers are arranged on the conveying platform (110) for conveying the workpiece to be heat treated.

2. A temperature monitoring system for heat treatment of metal materials according to claim 1, characterized in that: A plurality of rotating plates (137) are fixed on the inner wall of the temperature measuring cylinder (134) along its radial direction, wherein the thermistor (138) is fixed on the rotating plate (137), and the temperature measuring point of the thermistor (138) is located at the rotation center of the temperature measuring cylinder (134).

3. A temperature monitoring system for heat treatment of metal materials according to claim 2, characterized in that: A baffle plate (135) is installed at the opening of the temperature measuring tube (134) via a bolt (136); a through hole is provided at the center of the baffle plate (135); the baffle plate (135) and the smooth rod of the bolt (136) are slidably matched; the bolt (136) and the temperature measuring tube (134) are fixedly matched, so as to adjust the movable range of the baffle plate (135) on the temperature measuring tube (134).

4. A temperature monitoring system for heat treatment of metal materials according to claim 3, characterized in that: A temperature measuring motor cooling cover (130) is fixedly mounted on the temperature measuring cylinder rotating sleeve (131), and a temperature measuring motor (132) and a planetary gearbox (133) are fixed inside the temperature measuring motor cooling cover (130), wherein an input shaft of the planetary gearbox (133) is fixed to an output shaft of the temperature measuring motor (132), and the output shaft of the planetary gearbox (133) is fixed to the temperature measuring cylinder (134), and the interior of the temperature measuring motor cooling cover (130) is hollow, and two connecting pipe openings are arranged on the temperature measuring motor cooling cover (130).

5. A temperature monitoring system for heat treatment of metal materials according to claim 4, characterized in that: The inner sides of the two cooling rings (112) are both rotatably sealed with a sealing rotating ring (129), and the sealing rotating ring (129) is fixed to a connecting pipe opening provided on a temperature measuring motor cooling cover (130), so that the temperature measuring motor cooling cover (130) is connected to the inside of the cooling ring (112). The two cooling rings (112) are also provided with cooling circulation butt joints (128), and the two cooling circulation butt joints (128) are respectively fixedly connected with a first cooling circulation pipe (125) and a second cooling circulation pipe (127), wherein a water pump (126) is installed in series on the first cooling circulation pipe (125), and one end of the first cooling circulation pipe (125) and the second cooling circulation pipe (127) away from the cooling ring (112) is fixedly connected with a cooling pool (124), and a plurality of cross-arranged partition plates (123) are fixed inside the cooling pool (124) for extending the flow path of cooling water.

6. A temperature monitoring system for heat treatment of metal materials according to claim 5, characterized in that: An evaporation chamber (120) is fixedly sealed on the cooling pool (124), and a cooling fin (119) is fixedly sealed and installed on the evaporation chamber (120). The interior of the cooling fin (119) is hollow and communicates with the interior of the evaporation chamber (120) and the cooling pool (124). A plurality of sliding pools (122) are fixed on the inner wall of the evaporation chamber (120). The sliding pools (122) are located directly below the corresponding cooling fins (119), and all the sliding pools (122) are inclined. The lowest end of the sliding pool (122) points to one side of the first cooling circulation pipe (125). A cooling nozzle (121) is fixed on the side of the cooling fin (119). The cooling nozzle (121) is connected to external cold air through a pipe, and a blower fan is provided in the pipe to drive external cold air into the cooling fin (119).

7. A temperature monitoring system for heat treatment of metal materials according to claim 6, characterized in that: A gear ring (114) is rotatably mounted on one of the reinforcing rings (118), the gear ring (114) is fixedly matched with the measuring slide frame (115), an adjusting motor (117) is fixedly mounted on the monitoring support seat (111), and a gear (116) meshing with the gear ring (114) is fixedly mounted on the output shaft of the adjusting motor (117).

8. A temperature monitoring system for heat treatment of metal materials according to claim 7, characterized in that: A frame-shaped sliding frame (106) is slidably mounted on the support plate (103). The frame-shaped sliding frame (106) is movably connected to one end of the conveying platform (110) via a connecting rod (107) and is used to adjust the distance between the conveying platform (110) and the support plate (103). A through hole is provided at a position on the support plate (103) corresponding to the sliding rod (109).

9. A temperature monitoring system for heat treatment of metal materials according to claim 8, characterized in that: Two push cylinders (105) are also fixed on the support plate (103), and push cross bars (104) are fixed to the ends of the telescopic rods of the two push cylinders (105), wherein the frame-type sliding frame (106) is fixedly matched with the push cross bars (104), and the support plate (103) is fixed on the overhead seat (101), and a platform cover (102) is also fixed on the support plate (103).

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