Tunnel type conjoined resistance furnace with heating body convenient to replace

Abstract

According to the tunnel type connected resistance furnace with the heating body convenient to replace, by arranging a transmission motor and a transmission lead screw, the transmission motor and the transmission lead screw can control a dismounting assembly to achieve the effect of automatically dismounting the damaged heating body, and the situation that workers need to manually replace the heating body is effectively avoided; the workload of workers is reduced, and meanwhile the situation that the workers are scalded in the replacement process can be avoided. According to the tunnel type connected resistance furnace convenient for replacing the heating body, the dismounting assembly is arranged, and the clamping unit is arranged on the dismounting assembly, so that the effect of replacing the heating rod without shutdown can be realized under the cooperation of the wiring terminal and the limiting unit, and the action of dismounting the wiring terminal by using a tool in the dismounting process is reduced; and the dismounting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of resistance furnaces, in particular to a tunnel-type connected resistance furnace which is convenient for replacing a heating element. Background Art

[0002] The tunnel type connected resistance furnace is a device that converts electrical energy into thermal energy using the principle of resistance heating, and is usually used for heating and heat treatment of metal materials. It is widely used in production and experiments in the fields of ceramics, metallurgy, electronics, glass, chemicals, machinery, refractory materials, new material development, special materials, building materials, etc., such as sintering of metal materials and ceramic materials, heat treatment of certain single crystals, detection and research of high temperature reburning shrinkage of refractory materials, etc. The tunnel type connected resistance furnace is mainly composed of furnace body, furnace shell, furnace cavity, furnace door and electric heating elements. The electric heating elements are mainly silicon carbon rods, which are installed on both sides of the furnace cavity in sequence. The conductive end of the silicon carbon rod extends to the cold end area, and multiple silicon carbon rods are electrically connected through wires. After power is turned on, the silicon carbon rod can heat up quickly, and has the advantages of fast heating speed and uniform temperature field. However, the silicon carbon rod is very easy to break under the condition of slight collision and stress, and must be replaced after breaking; in the prior art, manual replacement is usually adopted, which requires first removing the terminal on the silicon carbon rod, then removing the wire, and finally removing the silicon carbon rod. The replacement process is relatively complicated, and there are great safety hazards in manual replacement, which may cause burns, electric shock, etc.; at the same time, during the replacement process, because the top cover of the tunnel-type connected resistance furnace is usually a single-door structure and has a long furnace body, when the silicon carbon rod to be replaced is on the side away from the top box door opening, the staff needs to go around to the other side of the furnace body to replace it, which reduces the replacement efficiency.

[0003] Therefore, a tunnel-type connected resistance furnace which is convenient for replacing the heating element is proposed to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a tunnel-type connected resistance furnace which is convenient for replacing the heating element. It has the advantages of easy disassembly, high disassembly efficiency and high safety, and solves the problems in the prior art of complicated disassembly process and low replacement efficiency of staff.

[0005] To achieve the above object, the present invention provides the following technical solution: a tunnel-type connected resistance furnace that is convenient for replacing a heating element, comprising a furnace body, wherein the furnace body is provided with a furnace cavity and a cold end area, a protective cover is provided on the top of the cold end area, a plurality of heating rods are symmetrically arranged in the cold end area, a plurality of heating rods are provided with wiring terminals for fixing, and a plurality of wiring terminals are connected with power supply wires for conducting electricity; A first guide rail is also provided in the cold end area, and a dismantling assembly for dismantling the heating rod is slidably connected to the first guide rail. A transmission motor for transmission is also provided in the first guide rail, and a transmission screw is connected to the output end of the transmission motor, and the transmission screw is transmission-connected to the dismantling assembly.

[0006] Furthermore, the dismantling assembly includes a flip unit for transmission, a lifting unit for extending the displacement distance, and an extension unit for disassembling the heating rod.

[0007] Furthermore, the flip unit includes a first mounting plate for installation, and a slider adapted to the first guide rail and a threaded platform threadedly connected to the transmission screw are provided at the bottom of the first mounting plate; Two groups of support platforms for support are fixedly connected to the top of the first mounting plate, and a U-shaped groove for connection is opened on the support platform. A fixed seat for transmission is also provided on the top of the first mounting plate, and a first electric push rod is provided on the fixed seat. The push rod end of the first electric push rod is fixedly connected to a transmission block, and a transmission column for connection is provided in the transmission block, and both ends of the transmission column are fixedly connected to the first transmission platform, and transmission racks for transmission are provided on the two first transmission platforms.

[0008] Furthermore, the lifting unit includes a second mounting plate for installation, both ends of the second mounting plate are provided with connecting shafts that are compatible with the U-shaped grooves on the support platform, one end of the connecting shaft is provided with a linkage gear for linkage, and the second mounting plate is also provided with a second guide rail for guiding the extension unit, a second electric push rod for transmitting the extension unit, and a limit platform for limiting.

[0009] Furthermore, the extension unit includes a third mounting plate for installation and a third guide rail for guiding, the third guide rail is slidably connected with an extension plate, and both ends of the extension plate are provided with clamping units for clamping the heating rod; The third mounting plate is also provided with two tensioning wheels, a linkage belt is tensionedly connected between the two tensioning wheels, one side of the linkage belt is fixedly connected to the limiting platform, and one side of the linkage belt is fixedly connected to a connecting platform, and the connecting platform is fixedly connected to the extension plate.

[0010] Further, the clamping unit includes a clamping seat, the clamping seat is fixedly connected to the third mounting plate, a third electric push rod for transmission is arranged on the clamping seat, the push rod end of the third electric push rod is fixedly connected to the second transmission platform, the second transmission platform is rotatably connected to two groups of first linkage arms, and the other ends of the two groups of first linkage arms are rotatably connected to the clamping arms; The clamping arm is provided with a clamping claw for clamping the conductive end of the heating rod, one clamping claw is provided with a linkage column for adjusting the wiring terminal, the clamping arm is also provided with a guide groove for guiding, and the third electric push rod is provided with a guide column slidably connected to the guide groove.

[0011] Furthermore, the wiring terminal includes a wiring port for connecting a power supply wire and a support seat for support, a mounting frame for installation is provided on the top of the support seat, two adjustment seats are slidably connected in the mounting frame, and linkage racks are provided on the two adjustment seats. An adjustment gear is also provided in the mounting frame, and the two linkage racks are respectively located above and below the adjustment gear, and both are meshed with the adjustment gear; The adjustment seat is also provided with a clamping piece for fixing the heating rod, and the other ends of the two clamping pieces are connected with connecting wires for conducting electricity.

[0012] Furthermore, a mounting groove is provided on the linkage rack located above the adjusting gear, and a limiting unit for limiting position is provided in the mounting groove.

[0013] Further, the limiting unit includes a first linkage rod, the first linkage rod is rotatably connected to the mounting groove, a reset spring is fixedly connected to the bottom of the first linkage rod for resetting, one side of the first linkage rod is rotatably connected to a second linkage arm, the other end of the second linkage arm is rotatably connected to a second linkage rod, the second linkage rod is rotatably connected to the mounting groove, and a limiting boss is provided at the bottom of the second linkage rod for limiting the linkage rack.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. This tunnel-type integrated resistance furnace, which is convenient for replacing the heating element, is equipped with a transmission motor and a transmission screw so that it can control the removal components to achieve the effect of automatic removal of the damaged heating element, effectively avoiding the need for manual replacement by staff, reducing the workload of staff and avoiding burns to staff during the replacement process.

[0015] 2. This tunnel-type integrated resistance furnace, which is convenient for replacing the heating element, is provided with a dismantling assembly so that during use, on the one hand, it can realize the effect of facilitating the disassembly of the heating rod, and on the other hand, it can effectively cooperate with the furnace body and the cold end area to realize the effect of facilitating placement.

[0016] 3. This tunnel-type integrated resistance furnace, which is convenient for replacing the heating element, can achieve a good removal effect on the heating rods arranged on both sides of the furnace chamber during use by providing a turning unit, a lifting unit and an extension unit, thereby ensuring its flexibility during use.

[0017] 4. This tunnel-type integrated resistance furnace, which is convenient for replacing the heating element, is equipped with wiring terminals and limit units, so that during use, the heating rod can be well fixed and conductive. The heating rod can be replaced without stopping the machine, and at the same time, it has good adjustability and can achieve automatic opening and tightening effects, avoiding the need for manual adjustment by staff.

[0018] 5. This tunnel-type integrated resistance furnace, which is convenient for replacing the heating element, is equipped with a clamping unit so that the heating rod can be effectively clamped during use. At the same time, it can achieve a linkage effect with the wiring terminal, ensuring that the automatic fixation effect can be achieved during the disassembly and installation process, effectively reducing the process of replacing the heating rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the cold end zone structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 For the present invention Figure 2 A magnified view of the structure; Figure 5 For the present invention Figure 2 A magnified view of the structure at B; Figure 6 This is a schematic diagram of the dismantling assembly structure of the present invention; Figure 7 This is a schematic diagram of the structure of the lifting and extending unit of the present invention; Figure 8 It is a schematic diagram of the structure of the clamping unit of the present invention; Fig. 9 It is a schematic diagram of the linkage structure between the clamping unit and the wiring terminal of the present invention; Fig.10 It is a schematic diagram of the linkage structure between the clamping unit and the limiting unit of the present invention; Fig.11 This is a schematic diagram of the wiring terminal structure of the present invention; Fig.12 It is a schematic diagram of the structure of the limiting unit of the present invention.

[0020] In the figure: 1. furnace body; 101. furnace cavity; 102. cover plate; 103. cold end zone; 104. first guide rail; 105. heating rod; 106. power supply wire; 107. transmission motor; 108. transmission screw rod; 2. removal assembly; 21. flip unit; 211. first mounting plate; 212. support platform; 213. fixing seat; 214. first electric push rod; 215. transmission block; 216. transmission column; 217. first transmission platform; 218. transmission rack; 22. lifting unit; 221. second mounting plate; 222. connecting shaft; 223. linkage gear; 224. second guide rail; 225. second electric push rod; 226. limit platform; 23. extension unit; 231. third mounting plate; 232. The third guide rail; 233. The tensioning wheel; 234. The linkage belt; 235. The connecting platform; 236. The extension plate; 3. The wiring terminal; 301. The wiring port; 302. The support seat; 303. The mounting frame; 304. The adjustment seat; 305. The linkage rack; 306. The adjustment gear; 307. The clamping piece; 308. The connecting wire; 4. The clamping unit; 41. The clamping seat; 42. The third electric push rod; 43. The second transmission platform; 44. The first linkage arm; 45. The clamping arm; 46. The guide groove; 47. The guide column; 48. The clamping claw; 49. The linkage column; 5. The limiting unit; 51. The first linkage rod; 52. The reset spring; 53. The second linkage arm; 54. The second linkage rod; 55. The limiting boss. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-3 In this embodiment, a tunnel-type connected resistance furnace that is convenient for replacing a heating element includes a furnace body 1, wherein the furnace body 1 is provided with a furnace cavity 101 and a cold end area 103, wherein a protective cover plate 102 is provided on the top of the cold end area 103, wherein a plurality of heating rods 105 are symmetrically arranged in the cold end area 103, wherein the plurality of heating rods 105 are each provided with a wiring terminal 3 for fixing, and a power supply wire 106 for conducting electricity is connected between the plurality of wiring terminals 3; wherein a first guide rail 104 is further provided in the cold end area 103, wherein the first guide rail 104 is slidably connected with a dismantling assembly 2 for dismantling the heating rod 105, wherein a transmission motor 107 for transmission is further provided in the first guide rail 104, wherein a transmission screw 108 is connected to the output end of the transmission motor 107, and the transmission screw 108 is transmission-connected to the dismantling assembly 2.

[0023] As a preferred technical solution in this embodiment: during actual use, when the heating element in the resistance furnace is damaged and needs to be replaced, the staff can first determine the position of the damaged heating element, and then control the transmission motor 107 to drive the transmission screw 108 to rotate. In the process of the rotation of the transmission screw 108, it can drive the entire 2 to produce a displacement effect, so that 2 can be displaced to the damaged heating element, and then 2 can be controlled to achieve the effect of removing the damaged heating element.

[0024] The technical effects brought about by the above embodiment are that, by providing a transmission motor 107 and a transmission screw 108, it is possible to control 2 to achieve the effect of automatic removal of the damaged heating element, effectively avoiding the need for staff to manually replace it, reducing the workload of the staff and avoiding burns to the staff during the replacement process.

[0025] It is worth noting that, in actual use, the staff can control the rotation angle of the transmission motor 107 by setting a PLC controller, thereby achieving the effect of precise adjustment of the displacement of 2, ensuring that the heating rod 105 to be disassembled is located at the horizontal center axis of 2.

[0026] See also Figure 4-7 The dismantling assembly 2 in this embodiment includes a flip unit 21 for transmission, a lifting unit 22 for extending the displacement distance, and an extending unit 23 for disassembling the heating rod 105.

[0027] As a preferred technical solution in this embodiment: a flip unit 21 is provided to enable it to drive the lifting unit 22 to produce a flipping effect, thereby ensuring that the lifting unit 22 can drive the extension unit 23 to achieve the effect of disassembling the heating body arranged on both sides of the furnace cavity 102.

[0028] The technical effects brought about by the above embodiments are: it can effectively avoid the staff from having to go around to the other side to replace the heating body when the heating body on different sides needs to be replaced, thereby effectively increasing the replacement efficiency of the heating rod.

[0029] The flip unit 21 in this embodiment includes a first mounting plate 211 for installation, and a slider adapted to the first guide rail 104 and a threaded table threadedly connected to the transmission screw 108 are provided at the bottom of the first mounting plate 211; two groups of support tables 212 for support are fixedly connected to the top of the first mounting plate 211, and a U-shaped groove for connection is opened on the support table 212, and a fixed seat 213 for transmission is also provided on the top of the first mounting plate 211, and a first electric push rod 214 is provided on the fixed seat 213, and a push rod end of the first electric push rod 214 is fixedly connected to a transmission block 215, and a transmission column 216 for connection is provided in the transmission block 215, and both ends of the transmission column 216 are fixedly connected to the first transmission table 217, and the two first transmission tables 217 are provided with a transmission rack 218 for transmission.

[0030] As a preferred technical solution in this embodiment: during the replacement of the heating body, the staff can control whether the first electric push rod 214 is extended or retracted according to the side of the heating body to be replaced. When the push rod of the first electric push rod 214 is displaced, it can drive the transmission block 215 to produce a displacement effect, so that the transmission block 215 can drive the first transmission platform 217 to produce a displacement effect. During the displacement of the first transmission platform 217, it can drive the transmission rack 218 to cause it to displace, so that the transmission rack 218 can achieve the effect of transmitting the jacking unit 22, so that the jacking unit 22 can achieve the effect of flipping, and the jacking unit 22 can be perpendicular to the first mounting plate 211, thereby realizing the change of the horizontal lifting of the jacking unit 22 into the vertical lifting effect, and realizing the effect of taking out the heating body during the vertical lifting process.

[0031] It is worth mentioning that the staff can set a limiting member on the transmission rack 218 , that is, when the jacking unit 22 is exactly perpendicular to the first mounting plate 211 , the limiting member just achieves the limiting effect on the transmission rack 218 .

[0032] The lifting unit 22 in this embodiment includes a second mounting plate 221 for installation, and both ends of the second mounting plate 221 are provided with connecting shafts 222 that are compatible with the U-shaped groove on the support platform 212, and one end of the connecting shaft 222 is provided with a linkage gear 223 for linkage. The second mounting plate 221 is also provided with a second guide rail 224 for guiding the extension unit 23, a second electric push rod 225 for transmitting the extension unit 23, and a limit platform 226 for limiting.

[0033] As a preferred technical solution in this embodiment: when the first transmission platform 217 drives the transmission rack 218 to move to the linkage gear 223, the transmission rack 218 will drive the linkage gear 223 to rotate, and in the process of the linkage gear 223 rotating, it can drive the second mounting plate 221 to rotate around the support platform 212, thereby achieving the effect of driving the second mounting plate 221 to flip, and when the second mounting plate 221 is perpendicular to the first mounting plate 211, the staff can control the second electric push rod 225 to make its push rod drive the extension unit 23 to move upward or downward, thereby achieving the installation or removal of the heating rod 105.

[0034] The extension unit 23 in this embodiment includes a third mounting plate 231 for installation and a third guide rail 232 for guiding, and an extension plate 236 is slidably connected to the third guide rail 232, and both ends of the extension plate 236 are provided with clamping units 4 for clamping the heating rod 105; two tensioning wheels 233 are also provided on the third mounting plate 231, and a linkage belt 234 is tensioned and connected between the two tensioning wheels 233, one side of the linkage belt 234 is fixedly connected to the limit platform 226 and one side of the linkage belt is fixedly connected to the connecting platform 235, and the connecting platform 235 is fixedly connected to the extension plate 236.

[0035] As a preferred technical solution in this embodiment: in actual use, when the staff controls the second electric push rod 225 to drive the third mounting plate 231 to produce displacement, the third mounting plate 231 can drive the tensioning wheel 233 and the extension plate 236 to produce the same displacement during the displacement process. At this time, because the limit platform 226 fixes one side of the linkage belt 234, the linkage belt 234 will rotate around the two tensioning wheels 233, thereby driving the connecting platform 235 to produce a further displacement effect. In the process of further displacement of the connecting platform 235, it can drive the extension plate 236 to produce a further displacement effect, so that the clamping units 4 provided at both ends of the extension plate 236 can achieve the displacement effect. When the clamping unit 4 is displaced to the heating rod 105 to be replaced, the staff can control the clamping unit 4 to clamp and fix the heating rod 105, and then control the second electric push rod 225 again to drive 336 and the clamping unit 4 to produce opposite displacements to achieve the effect of removing the heating rod 105.

[0036] The clamping unit 4 in this embodiment includes a clamping seat 41, which is fixedly connected to the third mounting plate 231, and a third electric push rod 42 for transmission is arranged on the clamping seat 41, and a push rod end of the third electric push rod 42 is fixedly connected to a second transmission platform 43, and two groups of first linkage arms 44 are rotatably connected to the second transmission platform 43, and the other ends of the two groups of first linkage arms 44 are rotatably connected to clamping arms 45; The clamping arm 45 is provided with a clamping claw 48 for clamping the conductive end of the heating rod 105, and a linkage column 49 for adjusting the terminal 3 is provided on the clamping claw 48. The clamping arm 45 is also provided with a guide groove 46 for guiding, and the third electric push rod 42 is provided with a guide column 47 slidably connected to the guide groove 46.

[0037] As a preferred technical solution in this embodiment: in actual use, when the staff controls the extension plate 236 to drive the clamping unit 4 to move to the heating rod 105, the two clamping jaws 48 can be located on both sides of the heating rod 105 to be replaced. Then the staff can control the third electric push rod 42 to drive the second transmission platform 43 to produce an upward displacement effect. During the upward displacement of the second transmission platform 43, the clamping arm 45 and the clamping jaw 48 can be driven to produce a relative displacement effect, so that the two clamping jaws 48 can clamp the heating rod 105. At the same time, in the process of the two clamping jaws 48 approaching each other, one clamping jaw 48 can drive the linkage column 49 to make the terminal 3 cancel the limiting effect on the heating rod 105. Then the staff can control the extension plate 236 to produce an upward displacement, thereby driving the clamping jaw 48 to produce an upward displacement to achieve the effect of disassembling the heating rod 105.

[0038] It is worth noting that when the heating rod 105 is located at the transverse center axis of the first mounting plate 211 and the second mounting plate 221 and the first mounting plate 211 are perpendicular to each other, the clamping unit 4 is located just above the heating rod 105 .

[0039] The wiring terminal 3 in this embodiment includes a wiring port 301 for connecting the power supply wire 106 and a support seat 302 for support. A mounting frame 303 for mounting is provided on the top of the support seat 302. Two adjustment seats 304 are slidably connected in the mounting frame 303. Both adjustment seats 304 are provided with linkage racks 305. An adjustment gear 306 is also provided in the mounting frame 303. The two linkage racks 305 are respectively located above and below the adjustment gear 306, and both are meshed with the adjustment gear 306. The adjustment seat 304 is also provided with a clamping piece 307 for fixing the heating rod 105 , and the other ends of the two clamping pieces 307 are connected to a connecting wire 308 for conducting electricity.

[0040] As a preferred technical solution in this embodiment: when the staff is installing the heating rod 105, they can first insert the heating rod 105 into the corresponding installation hole, so that the heating end is located inside 102 and the conductive end is located between the two clamping plates 307. Then the staff can control the two adjustment seats 304 to produce a relative displacement effect so that the two clamping plates 307 can be driven to fix the heating rod 105. Finally, the heating rod 105 is powered on by inserting a wire into the wiring port 301. At this time, the installation of the heating rod 105 is completed. Compared with the traditional method of fixing the wire with a wire clamp or a bolt, this method has the effect of not requiring repeated installation, effectively ensuring that the installation or replacement of the heating rod 105 is more convenient, increasing its replacement efficiency, and avoiding the occurrence of contact or burns to the staff during the replacement process.

[0041] In this embodiment, a mounting groove is provided on a linkage rack 305 located above the adjusting gear 306, and a limiting unit 5 for limiting position is provided in the mounting groove.

[0042] As a preferred technical solution in this embodiment: when the staff controls the clamping jaw 48 to produce a downward displacement, the linkage column 49 on the clamping jaw 48 will be displaced to the limit unit 5, and the clamping jaw 48 will contact the top of the connecting wire 308. Then, when the two clamping jaws 48 are controlled to displace toward each other, the linkage column 49 can move the limit unit 5 to cancel the limiting effect on the linkage rack 305, thereby ensuring that when the linkage column 49 is displaced, it can drive the limit unit 5 to cause the linkage rack 305 to produce a displacement effect, and when a linkage rack 305 is displaced, it can drive the linkage gear 306 meshing with it to produce a rotation effect, so that the linkage gear 306 can drive the other adjustment seat 304 to produce a relative or reverse displacement effect.

[0043] The limiting unit 5 in this embodiment includes a first linkage rod 51, which is rotatably connected to the mounting groove, and a reset spring 52 for resetting is fixedly connected to the bottom of the first linkage rod 51, and one side of the first linkage rod 51 is rotatably connected to the second linkage arm 53, and the other end of the second linkage arm 53 is rotatably connected to the second linkage rod 54, which is rotatably connected to the mounting groove, and a limiting boss 55 for limiting the linkage rack 305 is arranged at the bottom of the second linkage rod 54.

[0044] As a preferred technical solution in this embodiment: As a preferred technical solution in this embodiment: During actual use, when the heating rod 105 needs to be removed, the staff clamps the heating rod 105 by controlling the clamping jaws 48. At this time, the linkage column 49 on the clamping jaws 48 is located between the first linkage rod 51 and the second linkage rod 54. When the two clamping jaws 48 are relatively displaced, the clamping effect on the heating rod 105 is achieved. The linkage column 49 on the clamping jaws 48 will drive the first linkage rod 51 to rotate counterclockwise. At this time, one side of the first linkage rod 51 will drive the reset spring 52 to be stretched, and the other side can drive the second linkage arm 53 to displace, so that the other end of the second linkage arm 53 can drive the second linkage rod 54 to rotate clockwise. In the process of the second linkage rod 54 rotating clockwise, the limiting boss 55 can be driven to disengage from the linkage rack 305, thereby canceling the limiting effect on the adjustment seat 304. As the clamping jaws 48 and the linkage column 49 continue to move, The linkage column 49 can drive the first linkage rod 51 and the linkage rack 305 located above the linkage gear 306 to produce a displacement effect. During the displacement of the linkage rack 305, the linkage gear 306 can be driven to make the other linkage rack 305 produce an opposite displacement effect, thereby driving the two clamping plates 307 to cancel the clamping effect on the heating rod 105. At this time, the staff controls the second electric push rod 225 to drive the extension plate 236 to produce an upward displacement effect, thereby driving the clamping claw 48 to produce an upward displacement, thereby realizing the removal of the heating rod 105. At this time, the linkage column 49 is separated from the first linkage rod 51, and the first linkage rod 51 is reset under the action of the reset spring 52. During the resetting process, the second linkage arm 53 can be driven to reset the second linkage rod 54. The limiting boss 55 provided on the second linkage rod 54 is again engaged with the tooth groove on the linkage rack 305, thereby realizing the limiting effect on the two linkage racks 305, thereby keeping the two clamping plates 307 open, which is convenient for subsequent installation.

[0045] Similarly, when the heating rod 105 needs to be installed, the staff first lays the 2 flat, then fixes the heating rod 105 to be installed through the clamping unit 4, and controls the flip unit 21 to drive the jacking unit 22 and the extension unit 23 to be perpendicular to it, and finally controls the second electric push rod 225 to drive the extension plate 236 to produce a downward displacement effect. During the downward displacement of the extension plate 236, the heating rod 105 can be accurately inserted into the installation hole. When it is installed in place, the bottom of the clamping claw 48 contacts the installation frame 303, and the linkage column 49 is also located between the first linkage rod 51 and the second linkage rod 54; at this time, the staff can control The two jaws 48 are opened. When the jaws 48 are opened to cancel the fixation of the heating rod 105, the linkage column 49 on the jaw 48 will drive the second linkage rod 54 to rotate clockwise, so that the limiting boss 55 cancels the limiting effect on the linkage rack 305. Subsequently, in the process of continuous displacement of the linkage column 49, the second linkage rod 54 can be driven to produce a continuous displacement effect, so that the second linkage rod 54 can drive the linkage rack 305 located above the linkage gear 306 to be displaced, thereby driving the linkage gear 306 to make the linkage rack 305 at the bottom produce a displacement effect relative to it, thereby achieving the clamping of the conductive end of the heating rod 105, thereby completing the replacement of the heating rod 105.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel-type connected resistance furnace for facilitating replacement of a heating element, comprising a furnace body (1), wherein the furnace body (1) is provided with a furnace cavity (101) and a cold end region (103), and a protective cover plate (102) is provided on the top of the cold end region (103), characterized in that: A plurality of heating rods (105) are symmetrically arranged in the cold end region (103), each of the plurality of heating rods (105) is provided with a wiring terminal (3) for fixing, and each of the plurality of wiring terminals (3) is connected with a power supply wire (106) for conducting electricity; A first guide rail (104) is also provided in the cold end region (103), and a dismantling assembly (2) for dismantling the heating rod (105) is slidably connected to the first guide rail (104). A transmission motor (107) for transmission is also provided in the first guide rail (104), and a transmission screw (108) is connected to the output end of the transmission motor (107), and the transmission screw (108) is transmission-connected to the dismantling assembly (2).

2. A tunnel-type connected resistance furnace for facilitating replacement of heating elements as claimed in claim 1, characterized in that: The dismantling assembly (2) comprises a turning unit (21) for transmission, a lifting unit (22) for extending the displacement distance, and an extending unit (23) for disassembling the heating rod (105).

3. A tunnel-type connected resistance furnace for facilitating replacement of heating elements as claimed in claim 2, characterized in that: The flip unit (21) comprises a first mounting plate (211) for mounting, and a slider adapted to the first guide rail (104) and a threaded platform threadedly connected to the transmission screw (108) are provided at the bottom of the first mounting plate (211); Two groups of support platforms (212) for support are fixedly connected to the top of the first mounting plate (211), and a U-shaped groove for connection is provided on the support platform (212). A fixed seat (213) for transmission is also provided on the top of the first mounting plate (211), and a first electric push rod (214) is provided on the fixed seat (213). A push rod end of the first electric push rod (214) is fixedly connected to a transmission block (215), and a transmission column (216) for connection is provided in the transmission block (215), and both ends of the transmission column (216) are fixedly connected to a first transmission platform (217), and transmission racks (218) for transmission are provided on the two first transmission platforms (217).

4. A tunnel-type connected resistance furnace for facilitating replacement of heating elements as claimed in claim 3, characterized in that: The lifting unit (22) comprises a second mounting plate (221) for mounting, both ends of the second mounting plate (221) are provided with connecting shafts (222) adapted to the U-shaped grooves on the support platform (212), one end of the connecting shaft (222) is provided with a linkage gear (223) for linkage, and the second mounting plate (221) is also provided with a second guide rail (224) for guiding the extension unit (23), a second electric push rod (225) for transmitting the extension unit (23), and a limit platform (226) for limiting.

5. A tunnel-type connected resistance furnace for facilitating replacement of heating elements as claimed in claim 4, characterized in that: The extension unit (23) comprises a third installation plate (231) for installation and a third guide rail (232) for guiding, the third guide rail (232) is slidably connected to an extension plate (236), and both ends of the extension plate (236) are provided with clamping units (4) for clamping the heating rod (105); Two tensioning wheels (233) are also provided on the third mounting plate (231), a linkage belt (234) is tensionedly connected between the two tensioning wheels (233), one side of the linkage belt (234) is fixedly connected to the limiting platform (226) and one side of the linkage belt is fixedly connected to a connecting platform (235), and the connecting platform (235) is fixedly connected to the extension plate (236).

6. A tunnel-type connected resistance furnace for facilitating replacement of heating elements as claimed in claim 5, characterized in that: The clamping unit (4) comprises a clamping seat (41), the clamping seat (41) is fixedly connected to the third mounting plate (231), a third electric push rod (42) for transmission is arranged on the clamping seat (41), a push rod end of the third electric push rod (42) is fixedly connected to the second transmission platform (43), two groups of first linkage arms (44) are rotatably connected to the second transmission platform (43), and the other ends of the two groups of first linkage arms (44) are rotatably connected to the clamping arms (45); The clamping arm (45) is provided with a clamping claw (48) for clamping the conductive end of the heating rod (105), and one clamping claw (48) is provided with a linkage column (49) for adjusting the wiring terminal (3). The clamping arm (45) is also provided with a guide groove (46) for guiding, and the third electric push rod (42) is provided with a guide column (47) slidably connected to the guide groove (46).

7. A tunnel-type connected resistance furnace for facilitating replacement of heating elements as claimed in claim 1, characterized in that: The wiring terminal (3) comprises a wiring port (301) for connecting a power supply wire (106) and a support seat (302) for supporting, a mounting frame (303) for mounting is arranged on the top of the support seat (302), two adjustment seats (304) are slidably connected in the mounting frame (303), and both adjustment seats (304) are provided with linkage racks (305), and an adjustment gear (306) is also arranged in the mounting frame (303), and the two linkage racks (305) are respectively located above and below the adjustment gear (306), and both are kept in mesh with the adjustment gear (306); The adjustment seat (304) is also provided with a clamping piece (307) for fixing the heating rod (105), and the other ends of the two clamping pieces (307) are connected to connecting wires (308) for conducting electricity.

8. A tunnel-type connected resistance furnace for facilitating replacement of heating elements as claimed in claim 7, characterized in that: A mounting groove is provided on the linkage rack (305) located above the adjusting gear (306), and a limiting unit (5) for limiting position is provided in the mounting groove.

9. A tunnel-type connected resistance furnace for facilitating replacement of heating elements as claimed in claim 8, characterized in that: The limiting unit (5) comprises a first linkage rod (51), the first linkage rod (51) is rotatably connected to the mounting groove, a reset spring (52) is fixedly connected to the bottom of the first linkage rod (51) for resetting, one side of the first linkage rod (51) is rotatably connected to a second linkage arm (53), the other end of the second linkage arm (53) is rotatably connected to a second linkage rod (54), the second linkage rod (54) is rotatably connected to the mounting groove, and a limiting boss (55) for limiting the linkage rack (305) is provided at the bottom of the second linkage rod (54).

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