Heating equipment for mesh belt dehydrogenation furnace

Abstract

The utility model relates to the technical field of machining part dehydrogenation, in particular to heating equipment for a mesh belt dehydrogenation furnace, which comprises a lower furnace body, an upper furnace cover and a conveying assembly, the conveying assembly comprises a support frame, a first driving roller, a second driving roller, a third driving roller, a first mesh belt, a second mesh belt and a third mesh belt, and a cavity is formed between the lower furnace body and the upper furnace cover. The supporting frames are located at the two ends of the outer side of the cavity, the supporting frames at the two ends are provided with a first driving roller, a second driving roller and a third driving roller from top to bottom respectively, the three driving rollers are driven by three different motors to rotate respectively, then the first driving roller drives the first mesh belt to rotate, and the second driving roller drives the second mesh belt to rotate. The third driving roller drives the third mesh belt to rotate, workpieces are placed on the three layers of mesh belts respectively and conveyed into the upper furnace cover to be dehydrogenated, the workpieces are directly conveyed out after being dehydrogenated, time and labor are saved, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dehydrogenation of mechanically processed parts, in particular to heating equipment for a mesh belt dehydrogenation furnace. Background Art

[0002] After the standard parts are electroplated, the workpiece will absorb hydrogen, which will cause hydrogen embrittlement and easy fracture. Therefore, the workpiece needs to be dehydrogenated after the electroplating process to remove the hydrogen absorption in the workpiece and eliminate the hydrogen embrittlement.

[0003] The existing announcement number CN207294837U discloses a dehydrogenation heating device for standard parts production, including a furnace body, an electric heater is provided on the inner wall of the furnace body, a temperature sensor is provided on the top of the furnace body, and the electric heater and the temperature sensor are respectively connected to a controller arranged on the outer wall of the furnace body; two supporting mechanisms are provided in the furnace body, and the supporting mechanisms include a bracket, a first supporting plate and a second supporting plate. There are two brackets, and the two brackets are arranged parallel to each other. The first supporting plate and the second supporting plate are alternately arranged between the two brackets, which has good stability and improves the dehydrogenation efficiency.

[0004] However, the above-mentioned dehydrogenation heating device for standard parts production uses a carrying mechanism to hold the standard parts that need to be dehydrogenated, and the carrying mechanism as a whole is moved back and forth through a slide groove and a guide wheel in the dehydrogenation device. Both the upper and lower workpieces need to slide out and then slide in, which consumes time and leads to low processing efficiency. Utility Model Content

[0005] The utility model aims to provide a heating device for a mesh belt dehydrogenation furnace, which solves the problem that the existing dehydrogenation heating device used for standard parts production needs to slide out and then slide in both the upper and lower workpieces, which wastes time and leads to low processing efficiency.

[0006] To achieve the above object, the utility model provides a heating device for a mesh belt dehydrogenation furnace, comprising a lower furnace body and an upper furnace cover, wherein the upper furnace cover is detachably connected to the lower furnace body and is located above the lower furnace body, and further comprises a conveying assembly;

[0007] The conveying assembly includes a support frame, a first driving roller, a second driving roller, a third driving roller, a first mesh belt, a second mesh belt and a third mesh belt. The number of the first driving rollers is two, and the two first driving rollers are respectively connected to the support frame and are respectively located at both ends of the support frame; the number of the second driving rollers is two, and the two second driving rollers are respectively connected to the support frame and are respectively located below the two first driving rollers; the number of the third driving rollers is two, and the two third driving rollers are respectively connected to the support frame and are respectively located below the two second driving rollers; the first mesh belt is arranged between the two first driving rollers, the second mesh belt is arranged between the two second mesh belts, and the third mesh belt is arranged between the two third driving rollers.

[0008] Among them, the heating equipment for the mesh belt dehydrogenation furnace also includes a circulation component, which includes a circulation fan and an air guide side plate. The circulation fan is detachably connected to the upper furnace cover and is located above the upper furnace cover; the air guide side plate is fixedly connected to the upper furnace cover and is located on the inner wall of the upper furnace cover.

[0009] Wherein, the circulation component also includes a furnace bottom diverter plate, which is fixedly connected to the air guide side plate and is located at the bottom of the air guide side plate.

[0010] Wherein, the circulation component also includes a furnace top diverter plate, which is fixedly connected to the air guide side plate and is located below the circulation fan.

[0011] Wherein, the heating equipment for the mesh belt dehydrogenation furnace also includes a heating pipe, and the heating pipe is detachably connected to the upper furnace cover and passes through the upper furnace cover.

[0012] The utility model discloses a heating device for a mesh belt dehydrogenation furnace, a cavity is formed between the lower furnace body and the upper furnace cover, which is used for dehydrogenation of workpieces, the support frame is made of heat-resistant steel square tube, and is located at both ends of the outer side of the cavity, the support frames at both ends are respectively provided with the first driving roller, the second driving roller and the third driving roller from top to bottom, the three driving rollers are respectively driven to rotate by three different motors, and then the first driving roller drives the first mesh belt to rotate, the second driving roller drives the second mesh belt to rotate, and the third driving roller drives the third mesh belt to rotate, the workpieces are respectively placed on the three-layer mesh belts, and are respectively transported into the upper furnace cover for dehydrogenation, and are directly transported out after dehydrogenation, which saves time and labor and effectively improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a schematic diagram of the overall structure of a heating device for a mesh belt dehydrogenation furnace of the utility model.

[0015] Figure 2 It is a cross-sectional view of the wind guide side plate of the utility model.

[0016] Figure 3 It is a cross-sectional view of the first driving roller of the utility model.

[0017] In the figure: 101-lower furnace body, 102-upper furnace cover, 103-support frame, 104-first drive roller, 105-second drive roller, 106-third drive roller, 107-first mesh belt, 108-second mesh belt, 109-third mesh belt, 110-circulating fan, 111-wind guide side plate, 112-furnace bottom diverter plate, 113-furnace top diverter plate, 114-heating tube. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] See also Figures 1 to 3 ,in, Figure 1 It is a schematic diagram of the overall structure of a heating device for a mesh belt dehydrogenation furnace of the utility model. Figure 2 It is a cross-sectional view of the air guide side plate 111 of the present invention. Figure 3 It is a cross-sectional view of the first driving roller 104 of the utility model. The utility model provides a heating device for a mesh belt dehydrogenation furnace: comprising a lower furnace body 101, an upper furnace cover 102, a conveying assembly, a circulation assembly and a heating pipe 114, the conveying assembly comprises a support frame 103, a first driving roller 104, a second driving roller 105, a third driving roller 106, a first mesh belt 107, a second mesh belt 108 and a third mesh belt 109, the circulation assembly comprises a circulation fan 110, an air guide side plate 111, a furnace top diverter plate 113 and a furnace bottom diverter plate 112.

[0020] According to this specific embodiment, the upper furnace cover 102 is detachably connected to the lower furnace body 101 and is located above the lower furnace body 101. The upper furnace cover 102 is welded into a cover body by steel sections and sheet metal bending parts. The inner lining is made of high-quality aluminum silicate refractory fiber. The fiber blanket is 160mm thick and the refractory temperature reaches 800°C, which effectively guarantees the service life and the safety and reliability of the furnace lining. The inner steel plate is made of SUS201 stainless steel plate to ensure that it will not rust at 200°C for a long time. The lower furnace body 101 is welded by steel sections and sheet metal bending parts. The inner lining is made of high-quality aluminum silicate refractory fiber. The inner steel plate is made of SUS201 stainless steel plate to ensure that it will not rust at 200°C for a long time. The upper furnace cover 102 and the lower furnace body 101 are connected by flange bolts, which are easy to disassemble and repair.

[0021] Among them, the number of the first driving rollers 104 is two, and the two first driving rollers 104 are respectively connected to the support frame 103 and are respectively located at both ends of the support frame 103; the number of the second driving rollers 105 is two, and the two second driving rollers 105 are respectively connected to the support frame 103 and are respectively located below the two first driving rollers 104; the number of the third driving rollers 106 is two, and the two third driving rollers 106 are respectively connected to the support frame 103 and are respectively located below the two second driving rollers 105; the first mesh belt 107 is arranged between the two first driving rollers 104, the second mesh belt 108 is arranged between the two second mesh belts 108, and the third mesh belt 109 is arranged between the two third driving rollers 106. The support frame 103 is made of heat-resistant steel square tube, and the square tube material is SUS201. It is arranged at both ends of the outer side of the upper furnace cover 102, and the first driving roller 104, the second driving roller 105 and the third driving roller 106 are arranged from top to bottom. The first mesh belt 107 is wound between the two first driving rollers 104, the second mesh belt 108 is wound between the two second driving rollers 105, and the third mesh belt 109 is wound between the two third driving rollers 106. The three driving rollers are driven to rotate by three motors respectively, and the three transmission motors are respectively frequency-controlled, so that the speeds of the three mesh belts are adjustable and meet the needs of different cooling speeds. The speeds of the three-layer mesh belts are independently adjustable, and the speed of the lower mesh belt is required to be greater than that of the upper mesh belt, so that the workpieces at the intersection of the upper and lower mesh belts will not accumulate. The speed of the mesh belt can be selected by a selection switch to preset multiple speeds, which can adapt to the processes of different products. It does not need to be controlled by PLC and upper industrial computer, which can save equipment costs, and the process adaptability is completely the same as that of PLC and upper computer. Among them, the first mesh belt 107, the second mesh belt 108 and the third mesh belt 109 are all made of SUS201 stainless steel wire in a herringbone shape and are provided with a rib (H=30mm). The mesh belt width is 800mm, excluding folded edges. The mesh belt is woven with a herringbone mesh belt, and a counterweight is set in the feeding direction of the mesh belt to ensure that the mesh belt does not slip during operation.

[0022] Secondly, the circulating fan 110 is detachably connected to the upper furnace cover 102 and is located above the upper furnace cover 102; the wind guide side plate 111 is fixedly connected to the upper furnace cover 102 and is located on the inner wall of the upper furnace cover 102. The furnace bottom diverter plate 112 is fixedly connected to the wind guide side plate 111 and is located at the bottom of the wind guide side plate 111. The furnace top diverter plate 113 is fixedly connected to the wind guide side plate 111 and is located below the circulating fan 110. The circulation components are provided with four groups, which are respectively distributed along the length direction of the upper furnace cover 102, so that the mesh belt dehydrogenation furnace heating equipment forms four temperature zones, which is beneficial to the dehydrogenation of the workpiece. Each group of circulation components contains a circulation fan 110, and the circulation fan 110 is installed on the top inner wall of the upper furnace cover 102 through a bracket. The circulation fan 110 is provided with the air guide side plates 111 on both sides. The air guide side plates 111 are fixed on the inner wall of the upper furnace cover 102 to form an air duct with the inner wall of the upper furnace cover 102. The furnace top diverter plate 11 is fixed on the air guide side plates 111 below the circulation fan 110. 3. The bottom of the wind guide side plate 111 is fixed with the furnace bottom diverter plate 112, which is located below the third mesh belt 109, and then the furnace top diverter plate 113, the wind guide side plate 111 and the furnace bottom diverter plate 112 form a circulating air duct. The surfaces of the furnace top diverter plate 113 and the furnace bottom diverter plate 112 respectively have a plurality of through holes for air circulation. When the circulating fan 110 is started, the hot air is ejected from the through holes of the furnace bottom diverter plate 112 through the side wall air duct, sucked in by the through holes of the furnace top diverter plate 113, and returned to the circulating fan 110 to form a circulation, so as to achieve the purpose of uniform temperature in the furnace. The shaft and blades of the circulating fan 110 are made of SUS304 high temperature heat-resistant steel, and the dynamic balance is calibrated to ensure the service life of the fan shaft. At the same time, the air guide side plate 111, the furnace top diverter plate 113 and the furnace bottom diverter plate 112 are all made of 201 heat-resistant steel plate to ensure long-term use without oxidation and extend the service life.

[0023] At the same time, the heating tube 114 is detachably connected to the upper furnace cover 102 and penetrates the upper furnace cover 102. The heating tube 114 is an electric heating tube 114, which is inserted into the furnace from both sides of the furnace top of the upper furnace cover 102, and all the wiring is outside the furnace top, which is convenient for replacement and maintenance. The heating tube 114 is a 201 stainless steel heating tube 114, which ensures that there will be no oxidation in the furnace and the furnace is clean. The heating tube 114 is controlled in four zones, and each zone is equipped with a K-type thermocouple for temperature control and over-temperature alarm.

[0024] Using a heating device for a mesh belt dehydrogenation furnace of the present embodiment, the workpieces are placed on the first mesh belt 107, the second mesh belt 108 and the third mesh belt 109 respectively, and the three motors are started respectively to drive the first drive roller 104, the second drive roller 105 and the third drive roller 106 to rotate, thereby driving the first mesh belt 107, the second mesh belt 108 and the third mesh belt 109 to rotate, and the workpieces are transported into the upper furnace cover 102. At this time, the heating tube 114 is heated to keep the upper furnace cover 102 at the required temperature for dehydrogenation. At the same time, the circulating fan 110 is started to circulate hot air in the upper furnace cover 102, which is helpful for dehydrogenation. After the dehydrogenation is completed, the first mesh belt 107, the second mesh belt 108 and the third mesh belt 109 transport the workpieces respectively, saving time and effort and effectively improving work efficiency.

[0025] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A heating device for a mesh belt dehydrogenation furnace, comprising a lower furnace body and an upper furnace cover, wherein the upper furnace cover is detachably connected to the lower furnace body and is located above the lower furnace body, characterized in that: Also included is a conveying assembly; The conveying assembly includes a support frame, a first driving roller, a second driving roller, a third driving roller, a first mesh belt, a second mesh belt and a third mesh belt, the number of the first driving rollers is two, and the two first driving rollers are respectively connected to the support frame and are respectively located at two ends of the support frame; There are two second drive rollers, and the two second drive rollers are respectively connected to the support frame and are respectively located below the two first drive rollers. There are two third drive rollers, and the two third drive rollers are respectively connected to the support frame and are respectively located below the two second drive rollers. The first mesh belt is arranged between the two first drive rollers, the second mesh belt is arranged between the two second mesh belts, and the third mesh belt is arranged between the two third drive rollers.

2. The heating device for a mesh belt dehydrogenation furnace according to claim 1, characterized in that: The heating equipment for the mesh belt dehydrogenation furnace also includes a circulation component, which includes a circulation fan and an air guide side plate. The circulation fan is detachably connected to the upper furnace cover and is located above the upper furnace cover; the air guide side plate is fixedly connected to the upper furnace cover and is located on the inner wall of the upper furnace cover.

3. The heating device for the mesh belt dehydrogenation furnace according to claim 2, characterized in that: The circulation component also includes a furnace bottom flow divider plate, which is fixedly connected to the air guide side plate and is located at the bottom of the air guide side plate.

4. The heating device for a mesh belt dehydrogenation furnace according to claim 2, characterized in that: The circulation component also includes a furnace top diverter plate, which is fixedly connected to the air guide side plate and is located below the circulation fan.

5. The heating device for a mesh belt dehydrogenation furnace according to claim 1, characterized in that: The heating device for the mesh belt dehydrogenation furnace also includes a heating pipe, which is detachably connected to the upper furnace cover and passes through the upper furnace cover.

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