A device for measuring temperature through a sight glass of a circular furnace

Abstract

The utility model discloses a device can measure temperature in ring furnace sight hole belongs to the technical field of ring furnace auxiliary temperature measuring equipment. The device that can measure temperature in ring furnace sight hole provides one first support, one second support, one third support, two fourth supports, four fifth supports, one cushion block, two linear bearings, a pivot, a temperature measuring stick, four connecting rods, eight first bolts, eight second bolts and two rolling bearings, the device can realize the purpose of close -range measurement ring furnace internal temperature through sight hole, and has the characteristics of low manufacturing cost, simple operation and good use effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary temperature measuring equipment for ring furnaces, specifically relating to a device that can measure the temperature through the inspection hole of a ring furnace. Background Technology

[0002] In the steel industry, the annular furnace is a device used to heat billets to a suitable piercing temperature. Multiple thermocouples are typically installed inside the furnace wall to accurately measure the temperature of each section. The measurement of the furnace temperature not only affects the parameter control of the heating process but also the heating quality of the billets. Currently, most companies use natural gas as fuel for the annular furnace. To allow operators to observe the combustion of natural gas within the furnace and the operation of the equipment, the annular furnace is usually equipped with several inspection holes. Since thermocouples may be contaminated or impacted during use, affecting their measurement accuracy, measuring the furnace temperature through the inspection holes has become an effective remedial measure. In view of this, some companies have successively developed temperature measuring devices based on the inspection holes. Although these devices have a relatively high degree of automation and can improve work efficiency, they all have certain limitations. The main limitation is that these devices are designed based on furnace temperature measurement through the inspection holes of coke ovens. Therefore, it is necessary to develop a device that can measure the furnace temperature through the inspection holes of the annular furnace.

[0003] After searching, three patent documents were found to be most relevant to this utility model technology. The specific contents are described below:

[0004] Patent document CN 201821817695.2 discloses an automatic temperature measurement system for the inspection hole of a coke oven using a cam. The system mainly includes an inspection hole cover, a connecting rod, a bracket, an infrared thermometer, a camshaft bracket, a driven wheel, a camshaft, a cam, a power wheel, a guide rod, a limit pin, a guide plate, and a motor. This device is exquisitely designed and ingeniously conceived. The use of the cam enables the automatic opening and closing of the inspection hole cover. The system operates accurately and reliably. The use of the infrared thermometer allows for timely measurement of the temperature at the top of the coke oven. The device has a relatively high degree of automation and features a simple structure, ease of construction, and high measurement accuracy. However, this device can only measure the oven temperature through the inspection hole at the top of the coke oven and cannot measure the oven temperature through the inspection hole at the top of a ring furnace.

[0005] Patent document CN 202020430941.X discloses an automatic temperature measuring device for the observation hole on the top of a coke oven. It mainly includes a track, support legs, a track vehicle, a drive unit, an automatic flip-top device, a control unit, an infrared temperature measuring device, a data cable, and a receiving terminal. This device is exquisitely designed and ingeniously conceived. The combined use of the track vehicle, infrared temperature measuring device, control unit, and receiving terminal enables automatic detection of the temperature at the top of the coke oven. The combined use of the data cable and receiving terminal enables mobile inspection, truly achieving automated monitoring of the coke oven top temperature. This improves production efficiency and reduces safety hazards. However, this device can only measure the oven temperature through the observation hole on the top of the coke oven, and cannot measure the oven temperature through the observation hole of a ring furnace.

[0006] Patent document CN 202021169582.3 discloses a coke oven inspection hole temperature measuring mechanism, which mainly includes a probe frame, a probe sleeve, a pyrometer, a probe positioning sleeve, a set screw, a self-aligning ring, a cooling pipe, an inspection hole cover, a rotating frame, and an inspection hole seat. The device is exquisitely designed and ingeniously conceived. The use of the probe frame enables limited movement of the self-aligning ring, and the use of the self-aligning ring enables limited oscillation of the optical part of the pyrometer inside the probe sleeve. The use of the set screw enables adjustment of the probe positioning sleeve, thereby achieving limited adjustment and position fixation of the probe sleeve in two dimensions. The device has the characteristics of being mobile and flexible, fast aiming, and accurate temperature measurement. However, the device can only measure the furnace temperature through the inspection hole on the top of the coke oven and cannot measure the furnace temperature through the inspection hole of the annular furnace. Utility Model Content

[0007] To overcome one or more problems existing in the prior art, this utility model provides a device for measuring temperature through the inspection hole of a ring furnace. The combined use of the pad and the second bolt enables the vertically opposite arrangement of a second support and a first support. The combined use of the first support, the second support, and the rolling bearing enables the positioning and rotation of the rotating shaft. The use of the rotating shaft enables the positioning and swinging of the third support. The combined use of the third support and the first bolt enables the front-to-back arrangement of two linear bearings. The use of the linear bearing enables the horizontal movement of the connecting rod, thereby enabling the horizontal movement of the temperature measuring rod. The use of the connecting rod enables the front-to-back arrangement of two fourth supports. The use of the fourth support enables the positioning of the temperature measuring rod. The use of the fifth support enables the positioning and connection of the connecting rod and the fourth support. The use of the temperature measuring rod enables close-range measurement of the internal temperature of the ring furnace. Therefore, the device of this utility model has relatively good performance.

[0008] The technical solution adopted by this utility model to solve its technical problem is as follows.

[0009] The device for measuring temperature through the inspection hole of a ring furnace provided by this utility model includes a first support, a second support, a third support, two fourth supports, four fifth supports, a pad, two linear bearings, a rotating shaft, a temperature measuring rod, four connecting rods, eight first bolts, eight second bolts, and two rolling bearings.

[0010] The first bracket consists of a first body, a first boss, and a second boss connected coaxially. The first body is a symmetrical rectangular parallelepiped structure, and both the first and second bosses are symmetrical cylindrical structures. The first boss is located in the middle of the upper end face of the first body, and the second boss is located on the upper end face of the first boss. A cylindrical first through hole is formed on the axial part of the second boss, and the rolling bearing passes through the first through hole. Four cylindrical second through holes are evenly formed on the upper end face of the second boss along the circumferential direction, and the second bolt passes through the second through holes. A cylindrical first groove is formed on the axial part of the upper end face of the first boss, and the first bearing section of the rotating shaft passes through the first groove. The first groove and the first through hole are coaxially connected, and the inner diameter of the first groove should be smaller than the inner diameter of the first through hole, but larger than the diameter of the first bearing section of the rotating shaft.

[0011] The second bracket is composed of a second body and a third boss connected coaxially. Both the second body and the third boss are cylindrical symmetrical structures, with the third boss located on the upper end face of the second body. A cylindrical fourth through hole is formed on the axial part of the second body, and the rolling bearing passes through the fourth through hole. Four cylindrical fifth through holes are evenly formed along the circumferential direction on the upper end face of the second body, and the second bolt passes through the fifth through holes. A cylindrical sixth through hole is formed on the axial part of the third boss, and the second bearing section of the rotating shaft passes through the sixth through hole. The sixth through hole and the fourth through hole are coaxially connected, and the inner diameter of the sixth through hole should be smaller than the inner diameter of the fourth through hole, but larger than the diameter of the second bearing section of the rotating shaft.

[0012] The third bracket consists of a third body and two fourth protrusions connected together. Both the third body and the fourth protrusions are symmetrical rectangular parallelepiped structures. The two fourth protrusions are arranged opposite each other and are located on the upper end face of the third body. A seventh through hole in the middle of the upper end face of the third body is provided, and the locking section of the rotating shaft passes through the seventh through hole. A second screw hole is provided at each of the four corners of the rear end face of the fourth protrusion, and the first bolt is screwed into the second screw hole. A cylindrical eighth through hole is provided at the middle of the rear end face of the fourth protrusion, and a data cable is passed through the eighth through hole. Four cylindrical ninth through holes are symmetrically provided on the rear end face of the fourth protrusion, and the seventh protrusion of the linear bearing passes through the ninth through hole.

[0013] The fourth bracket is composed of a fourth body, four fifth protrusions, and a sixth protrusion. Both the fourth body and the fifth protrusions are symmetrical cuboid structures. The four fifth protrusions are arranged opposite each other and simultaneously located on the front end face of the fourth body. The sixth protrusion is located in the middle of the rear end face of the fourth body. A cylindrical second groove is formed in the middle of the front end face of the fifth protrusion, and the end of the connecting rod passes through the second groove. Two cylindrical tenth through holes are symmetrically formed on the upper end face of the fifth protrusion, and the eighth protrusion of the fifth bracket passes through the tenth through holes. The sixth protrusion is a symmetrical cylindrical structure. A third screw hole is formed on the axis of the sixth protrusion, and the seventh body of the temperature measuring rod is screwed into the third screw hole, which also serves as a data cable threaded through it. The third screw hole also penetrates the fourth body.

[0014] The fifth bracket is composed of a sixth body and two eighth protrusions connected together. The sixth body is a symmetrical rectangular parallelepiped structure. The two eighth protrusions are arranged opposite each other and are located on the lower end face of the sixth body. The eighth protrusion is a symmetrical cylindrical structure used to pass through the tenth through hole of the fourth bracket and the through groove of the connecting rod.

[0015] The temperature measuring rod is composed of a seventh body and a ninth protrusion connected coaxially. Both the seventh body and the ninth protrusion are cylindrical symmetrical structures. The ninth protrusion is located on the front end face of the seventh body. The circumferential surface of the seventh body is threaded for screwing into the third screw hole of the fourth bracket. A terminal is provided inside the seventh body, and a thermocouple is provided inside the ninth protrusion.

[0016] In some embodiments, the pad is a cylindrical symmetrical structure, and a cylindrical third through hole is provided on the axial part of the pad. The isolation section of the rotating shaft passes through the third through hole. Four first screw holes are evenly provided on the upper end surface of the pad along the circumferential direction. The second bolt is screwed into the first screw hole, and the first screw hole passes through the pad.

[0017] In some embodiments, the rotating shaft is composed of a first bearing section, an isolation section, a second bearing section, and a locking section connected coaxially. The first bearing section, the isolation section, and the second bearing section are all cylindrical symmetrical structures. The second bearing section and the first bearing section are arranged vertically opposite each other and are located on the upper and lower end faces of the isolation section, respectively. The locking section is located on the upper end face of the second bearing section. The locking section is a regular octagonal symmetrical structure used to pass through the seventh through hole of the third bracket. The first bearing section and the second bearing section are both used to pass through the rolling bearing. The diameters of the first bearing section and the second bearing section are equal and should both be smaller than the diameter of the isolation section but larger than the diameter of the circumscribed circle of the locking section.

[0018] In some embodiments, the linear bearing comprises a fifth body and four seventh bosses connected together. The fifth body has a symmetrical cuboid structure, and the four seventh bosses are arranged opposite each other in pairs and are simultaneously located on the front end face of the fifth body. A cylindrical eleventh through hole is formed at each of the four corners of the front end face of the fifth body, and the first bolt passes through the eleventh through hole. A cylindrical twelfth through hole is formed in the middle of the front end face of the fifth body, and a data cable passes through the twelfth through hole. The seventh boss has a symmetrical cylindrical structure, and a cylindrical thirteenth through hole is formed at the axis of the seventh boss. The middle part of the connecting rod passes through the thirteenth through hole, which also penetrates the fifth body. A cage, balls, and retaining rings are also provided within the seventh boss.

[0019] In some embodiments, the connecting rod is a cylindrical symmetrical structure, with the middle part of the connecting rod passing through the thirteenth through hole of the linear bearing, and the two ends of the connecting rod passing through the second groove of the fourth bracket; the two ends of the connecting rod are respectively provided with two opposing semi-cylindrical through slots, and the eighth boss of the fifth bracket passes through the through slots.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1) The device for measuring temperature through the observation hole of a ring furnace provided by this utility model includes a first support, a second support, a third support, two fourth supports, four fifth supports, a pad, two linear bearings, a rotating shaft, a temperature measuring rod, four connecting rods, eight first bolts, eight second bolts, and two rolling bearings. Since the materials are common and easy to process and form, the manufacturing cost of this utility model device is relatively low.

[0022] 2) When using this utility model device, it is horizontally set at the predetermined temperature measurement position of the annular furnace, ensuring that the two fourth supports are arranged one in front of the other and that the temperature measuring rod is aligned with the observation hole of the annular furnace. The data cable is then passed through the third screw holes of the two fourth supports and the twelfth through holes of the two linear bearings, and connected to the terminal of the seventh body of the temperature measuring rod. The observation hole is opened using the observation hole opening device attached to the annular furnace. The third support is manually and slowly rotated at an angle along the rotating shaft until the two fourth supports are arranged one in front of the other. The four connecting rods are then manually and slowly moved forward horizontally along the eight thirteenth through holes of the two linear bearings until the ninth protrusion of the temperature measuring rod is completely inserted into the observation hole of the annular furnace. In this way, the internal temperature of the annular furnace can be measured at close range. Therefore, the operation of this utility model device is relatively simple.

[0023] 3) This utility model device adopts a symmetrical structure design. The combined use of the pad and the second bolt enables the upper and lower relative arrangement of a second support and a first support. The combined use of the first support, the second support, and the rolling bearing enables the positioning and rotation of the rotating shaft. The use of the rotating shaft enables the positioning and swinging of the third support. The combined use of the third support and the first bolt enables the front and rear relative arrangement of two linear bearings. The use of the linear bearing enables the horizontal movement of the connecting rod, thereby enabling the horizontal movement of the temperature measuring rod. The use of the connecting rod enables the front and rear relative arrangement of two fourth supports. The use of the fourth support enables the positioning of the temperature measuring rod. The use of the fifth support enables the positioning and connection of the connecting rod and the fourth support. The use of the temperature measuring rod enables close-range measurement of the internal temperature of the ring furnace. Therefore, the performance of this utility model device is relatively good.

[0024] The device provided by this utility model, which can measure the temperature through the inspection hole of the ring furnace, enables close-range measurement of the internal temperature of the ring furnace. This utility model device has the characteristics of low manufacturing cost, simple operation and good performance. Attached Figure Description

[0025] Figure 1 This is a rear view schematic diagram of the device of the present invention that can measure temperature through the inspection hole of a ring furnace;

[0026] Figure 2This is a schematic diagram of the left side of the device of this utility model that can measure the temperature through the inspection hole of a ring furnace;

[0027] Figure 3 This is a top view schematic diagram of the device of this utility model that can measure temperature through the inspection hole of a ring furnace;

[0028] Figure 4 This is a top view of the assembled structure of the first bracket, second bracket, rolling bearing, rotating shaft and pad block of this utility model;

[0029] Figure 5 This is a rear view schematic diagram of the first bracket of this utility model;

[0030] Figure 6 This is a top view of the first support structure of this utility model;

[0031] Figure 7 This is a cross-sectional view of the first support of this utility model along the MM plane.

[0032] Figure 8 This is a top view of the pad block of this utility model;

[0033] Figure 9 This is a rear view schematic diagram of the second bracket of this utility model;

[0034] Figure 10 This is a top view of the second support structure of this utility model;

[0035] Figure 11 This is a bottom view of the second support structure of this utility model;

[0036] Figure 12 This is a cross-sectional view of the second support of this utility model along the NN plane;

[0037] Figure 13 This is a rear view schematic diagram of the third bracket of this utility model;

[0038] Figure 14 This is a top view of the third support structure of this utility model;

[0039] Figure 15 This is a front view schematic diagram of the fourth bracket of this utility model;

[0040] Figure 16 This is a rear view schematic diagram of the fourth bracket of this utility model;

[0041] Figure 17 This is a schematic diagram of the left-side structure of the fourth bracket of this utility model;

[0042] Figure 18This is a top view of the fourth support structure of this utility model;

[0043] Figure 19 This is a front view schematic diagram of the linear bearing of this utility model;

[0044] Figure 20 This is a top view of the linear bearing of this utility model.

[0045] Figure 21 This is a rear view schematic diagram of the rotating shaft of this utility model;

[0046] Figure 22 This is a rear view schematic diagram of the fifth bracket of this utility model;

[0047] Figure 23 This is a schematic diagram of the left side of the temperature measuring rod of this utility model;

[0048] Figure 24 This is a top view of the connecting rod of this utility model.

[0049] Explanation of reference numerals in the attached drawings: 1-First bracket; 101-First body; 102-First boss; 103-Second boss; 104-First groove; 105-First through hole; 106-Second through hole; 2-Padded block; 201-Third through hole; 202-First screw hole; 3-Second bracket; 301-Second body; 302-Third boss; 303-Fourth through hole; 304-Fifth through hole; 305-Sixth through hole; 4-Third bracket; 401-Third body; 402-Fourth boss; 403-Seventh through hole; 404-Second screw hole; 405-Eighth through hole; 406-Ninth through hole; 5-Fourth bracket; 501-Fourth body; 502- 503-Sixth Boss; 504-Second Groove; 505-Tenth Through Hole; 506-Third Screw Hole; 6-Linear Bearing; 601-Fifth Body; 602-Seventh Boss; 603-Eleventh Through Hole; 604-Twelfth Through Hole; 605-Thirteenth Through Hole; 7-Rotating Shaft; 701-First Bearing Section; 702-Isolation Section; 703-Second Bearing Section; 704-Positioning Section; 8-Fifth Bracket; 801-Sixth Body; 802-Eighth Boss; 9-Temperature Measuring Rod; 901-Seventh Body; 902-Ninth Boss; 10-Connecting Rod; 1001-Through Groove; 11-First Bolt; 12-Second Bolt; 13-Rolling Bearing. Detailed Implementation

[0050] The present invention will be described in detail below with reference to the embodiments and accompanying drawings. The embodiments are only for understanding the present invention and are not intended to limit the content of the present invention.

[0051] Combination Figures 1 to 3As shown, this utility model provides a device for measuring temperature through the inspection hole of a ring furnace, comprising a first support 1, a second support 3, a third support 4, two fourth supports 5, four fifth supports 8, a pad 2, two linear bearings 6, a rotating shaft 7, a temperature measuring rod 9, four connecting rods 10, eight first bolts 11, eight second bolts 12, and two rolling bearings 13; wherein, a rolling bearing 13 is inserted through a first through hole 105 of a horizontally arranged first support 1, and a first bearing section 701 of a rotating shaft 7 is inserted through the rolling bearing 13; a second bearing section 703 of the rotating shaft 7 is inserted through the other rolling bearing 13, and the rolling bearing 13 is inserted through a fourth through hole 303 of a second support 3; a pad 2 is inserted between the second boss 103 of the first support 1 and the second body 301 of the second support 3, and connected by eight second bolts 12; an isolation section 702 of the rotating shaft 7 is inserted through the pad 2. Within a third through hole 201 of block 2, a locking section 704 of the rotating shaft 7 passes through a seventh through hole 403 of a third bracket 4; within eight ninth through holes 406 of the third bracket 4, eight seventh bosses 602 of two linear bearings 6 arranged in opposite directions are passed through and connected by eight first bolts 11; within eight thirteenth through holes 605 of the two linear bearings 6, four middle parts of four connecting rods 10 arranged in opposite pairs are passed through, and the eight ends of the four connecting rods 10 pass through eight second grooves 504 of two fourth brackets 5 arranged in opposite directions; within sixteen tenth through holes 505 of the two fourth brackets 5, eight eighth bosses 802 of four fifth brackets 8 arranged in opposite pairs are passed through, and the eight eighth bosses 802 of the four fifth brackets 8 also pass through sixteen through slots 1001 of the four connecting rods 10; within the third screw hole 506 of the fourth bracket 5 in the front position, the seventh body 901 of a temperature measuring rod 9 is screwed.

[0052] The present invention provides an assembly method for a device capable of measuring temperature through the inspection hole of a ring furnace.

[0053] Combination Figures 1 to 24 As shown, firstly, the first bracket 1 is set horizontally, then a rolling bearing 13 is installed in a first through hole 105 of the first bracket 1, and then a first bearing section 701 of a rotating shaft 7 is inserted into the rolling bearing 13. In this way, the first bracket 1, the rolling bearing 13 and the rotating shaft 7 can be assembled.

[0054] Then, the third through hole 201 of the pad 2 passes through a locking section 704 and a second bearing section 703 of the rotating shaft 7 and is sleeved outside an isolation section 702. At this time, the pad 2 is set on the upper end face of a second boss 103 of the first bracket 1. Then, the four first screw holes 202 of the pad 2 are aligned with the four second through holes 106 of the first bracket 1. Then, the four second bolts 12 pass through the four second through holes 106 and are screwed into the four first screw holes 202. In this way, the pad 2 and the first bracket 1 can be assembled.

[0055] Then, a rolling bearing 13 is installed in a fourth through hole 303 of a second bracket 3. Then, the sixth through hole 305 of the second bracket 3 passes through a locking section 704 and a second bearing section 703 of the rotating shaft 7, and a second bearing section 703 of the rotating shaft 7 is inserted into the rolling bearing 13. In this way, a second bracket 3, a rolling bearing 13 and the rotating shaft 7 can be assembled.

[0056] At this time, a second body 301 of the second bracket 3 is set on the upper end face of the pad 2. Then, along the rotating shaft 7, the second bracket 3 is rotated slowly at a constant speed until the four fifth through holes 304 and the four first screw holes 202 of the pad 2 are aligned. Then, the four second bolts 12 are passed through the four fifth through holes 304 and screwed into the four first screw holes 202. In this way, the second bracket 3 and the pad 2 can be assembled.

[0057] Then, a seventh through hole 403 of the third bracket 4 is fitted over a locking section 704 of the rotating shaft 7. Then, the two linear bearings 6 are arranged opposite each other, and the eight seventh protrusions 602 are respectively inserted into the eight ninth through holes 406 of the third bracket 4. At this time, the eight eleventh through holes 603 of the two linear bearings 6 and the eight second screw holes 404 of the third bracket 4 are aligned. Then, the eight first bolts 11 are passed through the eight eleventh through holes 603 and screwed into the eight second screw holes 404. In this way, the rotating shaft 7, the third bracket 4 and the two linear bearings 6 can be assembled.

[0058] Then, the four middle parts of the four connecting rods 10 are respectively inserted into the eight thirteenth through holes 605 of the two linear bearings 6. Then, the two fourth brackets 5 are arranged opposite each other. Then, the eight ends of the four connecting rods 10 are respectively inserted into the eight second grooves 504 of the two fourth brackets 5. In this way, the two linear bearings 6, the four connecting rods 10 and the two fourth brackets 5 can be assembled.

[0059] Then, align the sixteen through slots 1001 of the four connecting rods 10 with the sixteen tenth through holes 505 of the two fourth brackets 5. Then, insert the eight eighth protrusions 802 of the four fifth brackets 8 into the sixteen tenth through holes 505 of the two fourth brackets 5 and the sixteen through slots 1001 of the four connecting rods 10. Finally, screw the seventh body 901 of one temperature measuring rod 9 into the third screw hole 506 of the fourth bracket 5. In this way, the entire device is assembled and can be put into use.

[0060] The method of using the device for measuring temperature through the inspection hole of a ring furnace provided by this utility model

[0061] First, the device is horizontally positioned at the predetermined temperature measurement location on the annular furnace, ensuring that the temperature measuring rod 9 is aligned with the viewing hole of the annular furnace when the two fourth supports 5 are arranged one in front of the other. Then, the data cable is passed through the two third screw holes 506 of the two fourth supports 5 and the two twelfth through holes 604 of the two linear bearings 6, and connected to the terminal of the seventh body 901 of the temperature measuring rod 9. When it is necessary to measure the internal temperature of the annular furnace, the viewing hole is opened using the viewing hole opening device attached to the annular furnace. Then, the third support 4 is manually and slowly rotated at an angle along the rotating shaft 7 until the two fourth supports 5 are arranged one in front of the other. Figures 1 to 3 As shown; then, along the eight thirteenth through holes 605 of the two linear bearings 6, manually move the four connecting rods 10 forward and horizontally slowly until the ninth protrusion 902 of the temperature measuring rod 9 is completely inserted into the viewing hole of the annular furnace. In this way, the internal temperature of the annular furnace can be measured at close range.

[0062] Supplementary Explanation: The device for measuring temperature through the inspection hole of a ring furnace provided by this utility model adopts a symmetrical structure design. First, the device of this utility model with corresponding specifications should be designed and manufactured according to the inner diameter and setting height of the inspection hole of the ring furnace. The longitudinal length of the ninth protrusion of the temperature measuring rod should be greater than the thickness of the furnace wall of the ring furnace so that the ninth protrusion of the temperature measuring rod can completely pass through the inspection hole of the ring furnace and partially extend into the interior of the ring furnace for close-range temperature measurement. The predetermined temperature measurement position of the ring furnace should meet the following two conditions: the first condition is that when the two fourth supports are arranged one in front of the other, the axis of the temperature measuring rod can be aligned with the axis of the inspection hole of the ring furnace. The second condition is that when the four connecting rods are slowly moved forward horizontally along the thirteenth through hole of the linear bearing, the ninth protrusion of the temperature measuring rod can completely pass through the inspection hole of the ring furnace and partially extend into the interior of the ring furnace for close-range temperature measurement. That is, the temperature measuring rod has the optimal measurement position. At this time, the position of the device of this utility model is the predetermined temperature measurement position of the ring furnace.

[0063] As can be seen from the embodiments, the device for measuring temperature through the inspection hole of the ring furnace provided by this utility model can achieve the purpose of measuring the internal temperature of the ring furnace at close range through the inspection hole. The device of this utility model has the characteristics of low manufacturing cost, simple operation and good use effect.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features.

Claims

1. A device for measuring temperature through the inspection hole of a ring furnace, characterized in that, The device for measuring temperature through the observation hole of the ring furnace includes: a first support (1), a second support (3), a third support (4), two fourth supports (5), four fifth supports (8), a pad (2), two linear bearings (6), a rotating shaft (7), a temperature measuring rod (9), four connecting rods (10), eight first bolts (11), eight second bolts (12), and two rolling bearings (13), wherein: The first bracket (1) is composed of a first body (101), a first boss (102) and a second boss (103) connected coaxially. The first body (101) is a rectangular parallelepiped symmetrical structure. The first boss (102) and the second boss (103) are both cylindrical symmetrical structures. The first boss (102) is located in the middle of the upper end face of the first body (101), and the second boss (103) is located on the upper end face of the first boss (102). A cylindrical first through hole (105) is opened at the axial part of the second boss (103), and the rolling bearing passes through the first through hole (105). 13); The upper end face of the second boss (103) is uniformly provided with four cylindrical second through holes (106) along the circumferential direction, and the second bolt (12) is inserted in the second through hole (106); A cylindrical first groove (104) is provided at the axial part of the upper end face of the first boss (102), and the first bearing section (701) of the rotating shaft (7) is inserted in the first groove (104); The first groove (104) and the first through hole (105) are coaxially connected, and the inner diameter of the first groove (104) is smaller than the inner diameter of the first through hole (105) but larger than the diameter of the first bearing section (701) of the rotating shaft (7); The second bracket (3) is composed of a coaxial second body (301) and a third boss (302). The second body (301) and the third boss (302) are both cylindrical symmetrical structures. The third boss (302) is located on the upper end face of the second body (301). A cylindrical fourth through hole (303) is opened at the axial part of the second body (301), and the rolling bearing (13) passes through the fourth through hole (303). Four circular holes are evenly opened along the circumferential direction on the upper end face of the second body (301). A cylindrical fifth through hole (304) is provided, and the second bolt (12) is inserted inside the fifth through hole (304); a cylindrical sixth through hole (305) is provided at the axial part of the third boss (302), and the second bearing section (703) of the rotating shaft (7) is inserted inside the sixth through hole (305); the sixth through hole (305) and the fourth through hole (303) are coaxially connected, and the inner diameter of the sixth through hole (305) is smaller than the inner diameter of the fourth through hole (303), but larger than the diameter of the second bearing section (703) of the rotating shaft (7); The third bracket (4) is composed of a third body (401) and two fourth protrusions (402). The third body (401) and the fourth protrusions (402) are both symmetrical rectangular parallelepiped structures. The two fourth protrusions (402) are arranged opposite each other and are located on the upper surface of the third body (401). A seventh through hole (403) in the shape of a regular octagon is opened in the middle of the upper surface of the third body (401). The locking section (704) of the rotating shaft (7) passes through the seventh through hole (403). The four corners of the rear end face of the fourth boss (402) are respectively provided with a second screw hole (404), and the first bolt (11) is screwed into the second screw hole (404); the middle part of the rear end face of the fourth boss (402) is provided with a cylindrical eighth through hole (405), and the data cable is passed through the eighth through hole (405); the rear end face of the fourth boss (402) is symmetrically provided with four cylindrical ninth through holes (406), and the seventh boss (602) of the linear bearing (6) is passed through the ninth through holes (406). The fourth support (5) is composed of a fourth body (501), four fifth protrusions (502), and a sixth protrusion (503). The fourth body (501) and the fifth protrusions (502) are both symmetrical cuboid structures. The four fifth protrusions (502) are arranged opposite each other in pairs and are located on the front end face of the fourth body (501). The sixth protrusion (503) is located in the middle of the rear end face of the fourth body (501). A cylindrical second groove (504) is opened in the middle of the front end face of the fifth protrusion (502). The second groove (504) is filled with a cylinder. The connecting rod (10) is provided at its end; the upper end face of the fifth boss (502) is symmetrically provided with two cylindrical tenth through holes (505), and the eighth boss (802) of the fifth bracket (8) is provided inside the tenth through hole (505); the sixth boss (503) is a cylindrical symmetrical structure, and a third screw hole (506) is provided on the axial part of the sixth boss (503). The seventh body (901) of the temperature measuring rod (9) is screwed into the third screw hole (506), and it is also used to pass through the data cable. The third screw hole (506) also passes through the fourth body (501). The fifth bracket (8) is composed of a sixth body (801) and two eighth protrusions (802). The sixth body (801) is a rectangular parallelepiped symmetrical structure. The two eighth protrusions (802) are arranged opposite each other and are located on the lower end face of the sixth body (801). The eighth protrusions (802) are cylindrical symmetrical structures used to pass through the tenth through hole (505) of the fourth bracket (5) and the through groove (1001) of the connecting rod (10). The temperature measuring rod (9) is composed of a seventh body (901) and a ninth boss (902) connected coaxially. The seventh body (901) and the ninth boss (902) are both cylindrical symmetrical structures. The ninth boss (902) is located on the front end face of the seventh body (901). The circumferential surface of the seventh body (901) is threaded for screwing the third screw hole (506) of the fourth bracket (5). The seventh body (901) is provided with a terminal, and the ninth boss (902) is provided with a thermocouple.

2. The device for measuring temperature through the inspection hole of a ring furnace according to claim 1, characterized in that, The pad (2) is a cylindrical symmetrical structure. A cylindrical third through hole (201) is opened at the axial part of the pad (2). The isolation section (702) of the rotating shaft (7) is inserted inside the third through hole (201). Four first screw holes (202) are evenly opened along the circumferential direction on the upper end surface of the pad (2). The second bolt (12) is screwed into the first screw hole (202). The first screw hole (202) penetrates the pad (2).

3. The device for measuring temperature through the inspection hole of a ring furnace according to claim 1, characterized in that, The rotating shaft (7) is composed of a first bearing section (701), an isolation section (702), a second bearing section (703), and a locking section (704) connected coaxially. The first bearing section (701), the isolation section (702), and the second bearing section (703) are all cylindrical symmetrical structures. The second bearing section (703) and the first bearing section (701) are arranged vertically opposite each other and are located on the upper and lower end faces of the isolation section (702), respectively. The locking section (704) The first bearing section (701) and the second bearing section (703) are located on the upper end face of the second bearing section (703); the locking section (704) is a symmetrical structure in the shape of a regular octagon and is used to pass through the seventh through hole (403) of the third bracket (4); the first bearing section (701) and the second bearing section (703) are both used to pass through the rolling bearing (13). The diameters of the first bearing section (701) and the second bearing section (703) are equal and both are smaller than the diameter of the isolation section (702) but larger than the diameter of the outer circle of the locking section (704).

4. The device for measuring temperature through the inspection hole of a ring furnace according to claim 1, characterized in that, The linear bearing (6) is composed of a fifth body (601) and four seventh protrusions (602). The fifth body (601) is a symmetrical rectangular parallelepiped structure. The four seventh protrusions (602) are arranged opposite each other in pairs and are located on the front end face of the fifth body (601). A cylindrical eleventh through hole (603) is opened at each of the four corners of the front end face of the fifth body (601). The first bolt (11) passes through the eleventh through hole (603). The middle of the front end face of the fifth body (601) The part has a cylindrical twelfth through hole (604), which is used to pass through the data cable; the seventh boss (602) is a cylindrical symmetrical structure, and a cylindrical thirteenth through hole (605) is opened on the axis of the seventh boss (602). The middle part of the connecting rod (10) is passed through the thirteenth through hole (605), and the thirteenth through hole (605) also passes through the fifth body (601). The seventh boss (602) is also provided with a retainer, ball bearings and retaining ring.

5. The device for measuring temperature through the inspection hole of a ring furnace according to claim 1, characterized in that, The connecting rod (10) has a cylindrical symmetrical structure. The middle part of the connecting rod (10) passes through the thirteenth through hole (605) of the linear bearing (6), and the two ends of the connecting rod (10) pass through the second groove (504) of the fourth bracket (5). The two ends of the connecting rod (10) are respectively provided with two opposing semi-cylindrical through grooves (1001), and the eighth boss (802) of the fifth bracket (8) passes through the through grooves (1001).

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