CN113523178A - Production process of special chain for high-temperature reactor - Google Patents
Production process of special chain for high-temperature reactor Download PDFInfo
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- CN113523178A CN113523178A CN202110726040.4A CN202110726040A CN113523178A CN 113523178 A CN113523178 A CN 113523178A CN 202110726040 A CN202110726040 A CN 202110726040A CN 113523178 A CN113523178 A CN 113523178A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21L—MAKING METAL CHAINS
- B21L3/00—Making chains or chain links by bending the chain links or link parts and subsequently welding or soldering the abutting ends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21L—MAKING METAL CHAINS
- B21L15/00—Finishing or dressing chains or chain links, e.g. removing burr material, calibrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21L—MAKING METAL CHAINS
- B21L19/00—Appurtenances for chain-making not restricted to any particular process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21L—MAKING METAL CHAINS
- B21L3/00—Making chains or chain links by bending the chain links or link parts and subsequently welding or soldering the abutting ends
- B21L3/02—Machines or devices for welding chain links
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Abstract
The invention discloses a production process of a chain special for a high-temperature reactor, which mainly uses the following equipment: the chain automatic adjustment device comprises a full-automatic chain knitting machine, a character die marking machine, a beveling device, an auxiliary tool, an electric welding machine, a polishing machine, an electric furnace with an automatic temperature adjustment function, a full-automatic correcting machine and the like, so that chain assembly line machining is achieved, machining efficiency is improved, the beveling device is arranged on the auxiliary tool, an angle polishing machine is further arranged on the auxiliary tool, and beveling of a chain ring is conveniently polished. The invention carries out detection and raw material inspection at each processing stage, the inspection contents comprise material product quality certification and related detection reports, round steel size requirements, hardness detection and surface quality provided by a material supplier, grinding and flaw detection are carried out after welding is complete, breaking experiments are carried out after the requirements are met, and the broken chain segment synthetic product welding and subsequent procedures can be carried out for multiple detections when the broken chain segment synthetic product meets the requirements, so that the tension of chain production is ensured to be more than 10 tons.
Description
Technical Field
The invention belongs to the technical field of chain production, and particularly relates to a production process of a chain special for a high-temperature reactor.
Background
Chain manufacturing capability is a determining factor in the chain manufacturing industry, and the center of chain manufacturing strength is the process level of chain manufacturing. The extent of the chain manufacturing process depends to a large extent on the extent of chain consumption expertise. The degree of the strength of the process device directly influences the consumption efficiency of chain manufacturing companies and the economic benefit of the quality degree of products. Most of the existing chain manufacturing processes are the steps of material preparation, chain knitting, welding, detection and the like, and the chain is weak in detection, so that the quality of the chain is too low.
Disclosure of Invention
The invention aims to provide a production process of a chain special for a high-temperature reactor, which aims to solve the problem that the chain is weak in detection in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a production process of a special chain for a high-temperature reactor comprises the following steps:
s1, raw material inspection, wherein the inspection content comprises material product quality certification and related detection reports provided by a material supplier, round steel size requirements, hardness detection and surface quality;
s2, chain knitting, wherein a full-automatic chain knitting machine is adopted, and the maximum width of an inner groove is kept to be not more than 2.8mm during chain knitting; the maximum width of the outer groove is not more than 7.8 mm; the groove is positioned in the middle of the chain segment; the length of a single ring is controlled between 49.2mm and 49.9 mm; the outer width is controlled between 34.4mm and 34.05 mm;
s3, marking, and numbering chain rings at two ends of the chain by adopting a matrix marking machine;
s4, beveling, wherein beveling is carried out on the chain ring, the width of an inner bevel is 2.5-3mm, the included angle of symmetry of the bevel is 25-30 degrees, an auxiliary tool is used for clamping the chain ring, and the bevel is polished smoothly by a grinder;
s5, welding, namely, utilizing an auxiliary tool to open the groove of the welding line upwards, adopting a manual argon arc welding mode to weld each groove for four times, equally dividing the welding depth, polishing and removing the groove and an oxide layer on the welding line plane of the welding wire after 5 minutes of each welding, continuing to perform the second welding within 60 minutes, and polishing and removing the oxide layer until all welding is finished;
s6, polishing, namely polishing the welding seam table by using an angle polishing machine;
s7, polishing, namely putting the leather shoe leftover material and the chain to be polished into a polishing machine for polishing;
s8, solution annealing, namely putting the polished chain into an electric furnace with an automatic temperature adjusting function; carrying out metallographic detection after annealing;
s9, stretching, and correcting the chain by using a full-automatic correcting machine and a pulling force not less than 65-70 KN;
s10, performing penetrant inspection, and detecting each welding point by a third-party professional detection mechanism with nuclear-grade qualification;
s11, cleaning the surface, namely removing dirt such as liquid medicine left on the surface after the penetrant flaw detection by using a removing type cleaning agent, and wiping the surface for cleaning;
and S12, checking and warehousing.
Preferably, in S1, the round steel size requirement is: nominal diameter of 10mm, tolerance of 0-0.2, out-of-roundness deviation of less than 0.10; the hardness detection adopts a Brinell hardness tester, and the hardness index is HB less than or equal to 180; the surface of the Wu-Shu-Wu-Shu-Wu-Xue-Wu-Xue-Wu-Ju-Wu-Xue-Wu-Xue-Wu-Xue-Wu-Xue.
Preferably, in S5, the welding machine adopts a WS-IGBT type manual argon tungsten-arc welding machine with a current digital display function, and the diameter of a welding wire is 1.2-1.4 mm; and polishing and detecting flaws after the welding is complete, performing a breaking experiment after the welding meets the requirements, and performing witness chain segment synthetic product welding and subsequent processes when the breaking meets the requirements.
Preferably, in S6, the polished surface is smooth and free of unevenness, the weld diameter is not greater than 10.8mm, and the out-of-roundness deviation is not greater than 0.5 mm.
Preferably, in S7, the weight of the leftover material of the leather shoes is 1.5-2.5KG, the weight of the chain is 500KG, and the polishing time is 30-80 minutes.
Preferably, in S8, the set temperature is 1100-1200 ℃, and the heat preservation time is 1.5-2.5 hours; after the set time is up, water is added immediately, the water adding amount is not less than 2.2 cubic meters, and the water temperature is below 32 ℃; the metallographic examination standard is that austenite crystals are not less than 5 degrees or coarser.
Preferably, in S9, the corrected chain outer length is 50.0-50.5mm, and the non-welding point outer width is 33.5-34.2 mm; the 11-ring cumulative deviation does not exceed 1.8 mm.
Preferably, in S12, the inspection contents include surface quality inspection: the welding area must not have slag, burn, burr, the surface of the chain ring has no visual crack and the circular arc part has no obvious dent.
Preferably, the auxiliary tool comprises a tool table, and a chain ring clamping device and a chain conveying device are arranged on the tool table;
the chain ring clamping device comprises a fixed clamping plate fixedly connected to the top of the tooling table, a sliding hole is formed in one side, located on the fixed clamping plate, of the top of the tooling table, a sliding block is movably connected inside the sliding hole, a movable clamping plate is fixedly connected inside the sliding block, limiting steps are formed in the upper ends of the inner sides of the movable clamping plate and the fixed clamping plate, an air cylinder is installed at the bottom of the tooling table through a bolt, and the output end of the air cylinder is fixedly connected to one side of the sliding block;
the chain conveying device comprises a U-shaped frame fixedly connected to the top of the tooling table, a lower guide wheel is rotatably mounted inside the U-shaped frame through a rotating shaft, one end of the rotating shaft is connected to the end part of an output shaft of a motor through a coupler, the top of the U-shaped frame is fixedly connected with a spring pipe, a compression spring is arranged inside the spring pipe, a limiting plate is arranged at the lower end of the compression spring, a mounting frame is fixedly connected to the bottom of the limiting plate, and an upper guide wheel matched with the lower guide wheel is rotatably mounted inside the mounting frame;
the top of the tooling table is fixedly connected with a chain guide ring, and the chain guide ring, the fixed clamping plate and the lower guide wheel are arranged on the same straight line.
Preferably, the polishing machine comprises a frame, one side of the frame is fixedly connected with a circular guide rail, the inside of the circular guide rail is provided with a polishing bin of a bin cover through rotation of a roller, the center of the surface of the polishing bin is fixedly connected with a rotating rod, the rotating rod is rotatably arranged on the frame through a bearing, and one end of the rotating rod is connected with a driving motor through a gearbox.
The invention has the technical effects and advantages that: compared with the prior art, the production process of the special chain for the high-temperature reactor has the following advantages:
1. the invention carries out detection at each processing stage, raw material inspection, the inspection content comprises material product quality certification and related detection report provided by a material supplier, round steel size requirement, hardness detection and surface quality, grinding and flaw detection are carried out after welding is complete, breaking experiment is carried out after meeting the requirement, and multiple detections such as chain segment synthetic product welding and subsequent procedures can be carried out when breaking meets the requirement, so that the tension of chain production is ensured to be more than 10 tons;
2. according to the invention, the chain is polished by the leather shoe leftover material, and the chain to be polished and the leather shoe leftover material are put into the polishing machine for polishing, so that the polishing cleanness of the chain is improved, and the surface of the chain is not damaged.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic perspective view of a tooling table according to the present invention;
FIG. 3 is a schematic bottom view of the tooling table of the present invention;
FIG. 4 is a cross-sectional view of the spring tube of the present invention;
fig. 5 is a schematic view of the structure of the polishing machine of the present invention.
In the figure: 1. a tooling table; 2. fixing the clamping plate; 3. a slide hole; 4. a slider; 5. a movable splint; 6. a limiting step; 7. a cylinder; 8. a U-shaped frame; 9. a lower guide wheel; 10. a motor; 11. a spring tube; 12. a compression spring; 13. a limiting plate; 14. a mounting frame; 15. an upper guide wheel; 16. a chain guide ring; 17. a frame; 18. a circular guide rail; 19. a polishing bin; 20. a rotating rod; 21. a drive motor; 22. a full-automatic chaining machine; 23. a matrix marking machine; 24. beveling equipment; 25. auxiliary tools; 26. an electric welding machine; 27. polishing the machine; 28. an electric furnace with an automatic temperature adjusting function; 29. full-automatic inspection machine.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
The invention provides a production process of a chain special for a high-temperature reactor as shown in figure 1, which mainly uses the following equipment: the full-automatic chaining machine 22, the type matrix marking machine 23, the beveling equipment 24, the auxiliary fixtures 25, the electric welding machine 26, the polishing machine 27, the electric furnace 28 with the automatic temperature adjusting function, the full-automatic correcting machine 29 and the like, wherein: the full-automatic chaining machine 22, the matrix marking machine 23, the auxiliary fixtures 25, the electric welding machine 26, the polishing machine 27, the electric furnace 28 with the automatic temperature adjusting function and the full-automatic correction machine 29 are sequentially arranged, so that chain assembly line machining is realized, machining efficiency is improved, the beveling equipment 24 is arranged on the auxiliary fixtures 25, the auxiliary fixtures 25 are further provided with angle polishing machines, and bevels of chain rings are conveniently polished.
Example 2
Referring to fig. 2-5, the present invention provides an auxiliary tool;
the auxiliary tool comprises a tool table 1, wherein a chain ring clamping device and a chain conveying device are arranged on the tool table 1, the chain ring clamping device clamps a chain ring, the work of polishing, welding, polishing butt welding points and the like of a groove of the chain ring is facilitated, and the chain conveying device is used for pulling the chain to move and facilitating the replacement of the chain ring;
in the embodiment, the chain ring clamping device comprises a fixed clamp plate 2 fixedly connected to the top of the tool table 1, a sliding hole 3 is formed in one side, located on the fixed clamp plate 2, of the top of the tool table 1, a sliding block 4 is movably connected to the inside of the sliding hole 3, the sliding block 4 is used for fixing a movable clamp plate 5 and facilitating the movement of the movable clamp plate 5, the movable clamp plate 5 is fixedly connected to the inside of the sliding block 4, a limiting step 6 is formed in each of the upper ends of the inner sides of the movable clamp plate 5 and the fixed clamp plate 2, an air cylinder 7 is installed at the bottom of the tool table 1 through a bolt, the output end of the air cylinder 7 is fixedly connected to one side of the sliding block 4, when the chain ring is clamped, the air cylinder 7 is opened to drive the sliding block 4 to move in the sliding hole 3, so that the movable clamp plate 5 is close to the fixed clamp plate 2 to clamp the chain ring, the position between the chain ring and the clamping plate is conveniently limited step 6, and clamping of the chain ring is facilitated, the welding and polishing work is convenient;
in this embodiment, the chain transmission device includes a U-shaped frame 8 fixedly connected to the top of the tooling table 1, a lower guide wheel 9 is rotatably installed inside the U-shaped frame 8 through a rotating shaft, one end of the rotating shaft is connected to the end portion of an output shaft of a motor 10 through a coupler, a spring tube 11 is fixedly connected to the top of the U-shaped frame 8, a compression spring 12 is arranged inside the spring tube 11, a limiting plate 13 is arranged at the lower end of the compression spring 12, the cross sections of the spring tube 11 and the limiting plate 13 are set to be in any shape except a circular shape, so as to limit the angle of the upper guide wheel 15, an installation frame 14 is fixedly connected to the bottom of the limiting plate 13, an upper guide wheel 15 matched with the lower guide wheel 9 is rotatably installed inside the installation frame 14, the compression spring 12 in the spring tube 11 can extrude the upper guide wheel 15 to be tightly attached to the lower guide wheel 9, which is beneficial to clamping the chain, when the chain is welded, the end part of the chain sequentially passes through the chain guide ring 16, the fixed splint 2 and the lower guide wheel 9, when the chain is transmitted, the motor 10 is started to drive the lower guide wheel 9 to rotate, and the chain is clamped on the lower guide wheel 9 under the pressure of the upper guide wheel 15, so that the chain can be driven to sequentially transmit; the top fixedly connected with chain guide ring 16 of frock platform 1, and chain guide ring 16, solid fixed splint 2, lower leading wheel 9 set up on same straight line, do benefit to and restrict the position of chain.
In this embodiment, the polishing machine includes a frame 17, one side of the frame 17 is fixedly connected with a circular guide rail 18, a polishing bin 19 with a bin cover is rotatably installed inside the circular guide rail 18 through a roller, a rotating rod 20 is fixedly connected to the center of the surface of the polishing bin 19, the rotating rod 20 is rotatably installed on the frame 17 through a bearing, one end of the rotating rod 20 is connected with a driving motor 21 through a gearbox, when the chain is polished, leather shoe leftover bits of about 2KG and chains within 500KG are put into the polishing bin 19, the driving motor 21 drives the polishing bin 19 to rotate in the circular guide rail 18, the leather shoe leftover bits and the chains are turned over and polished in the polishing bin 19, the cleanliness of chain polishing is improved, and the surface of the chain cannot be damaged.
Example 3
When the chain is processed by the equipment, the method comprises the following steps:
1. raw material inspection, the inspection content includes the material product quality certification and relevant test report, round steel dimensional requirement, hardness detection and surface quality that the material provider provided, and the round steel dimensional requirement is: nominal diameter of 10mm, tolerance of 0-0.2, out-of-roundness deviation of less than 0.10; the hardness detection adopts a Brinell hardness tester, and the hardness index is HB less than or equal to 180; the surface of the Wu-Fa has the defects of hair lines, scratches, scabs, pits, pockmarks and the like;
2. chain knitting, namely, a full-automatic chain knitting machine is adopted, and the maximum width of an inner groove is not more than 2.8mm during chain knitting; the maximum width of the outer groove is not more than 7.8 mm; the groove is positioned in the middle of the chain segment; the length of a single ring is controlled between 49.2mm and 49.9 mm; the outer width is controlled between 34.4mm and 34.05 mm;
3. marking, namely numbering chain rings at two ends of the chain by adopting a character die marking machine;
4. beveling, namely beveling the chain ring, wherein the width of an inner bevel is 2.5-3mm, the included angle of the bevel is 25-30 degrees symmetrically, clamping the chain ring by using an auxiliary tool, and polishing the bevel smoothly by using a grinder;
5. welding, namely, utilizing an auxiliary tool to open a welding seam groove upwards greatly, adopting a manual argon arc welding mode to weld each groove for four times, equally dividing the welding depth, polishing and removing the groove and an oxide layer on the welding seam plane of a welding wire after 5 minutes of each welding, continuing to perform the second welding within 60 minutes, and polishing and removing the oxide layer until all the welding is completed, wherein the welding machine adopts a WS-IGBT type manual tungsten electrode argon arc welding machine with a current digital display function, and the diameter of the welding wire is 1.2-1.4 mm; polishing and detecting a flaw after the welding is complete, performing a breaking experiment after the welding meets the requirement, and performing witness chain segment synthetic product welding and subsequent processes when the breaking meets the requirement;
6. polishing, namely polishing the weld surface by using an angle grinder, wherein the polished surface is smooth and has no unevenness, the diameter of the weld is not more than 10.8mm, and the out-of-roundness deviation is not more than 0.5 mm;
7. polishing, namely putting the leather shoe leftover material and the chain to be polished into a polishing machine for polishing, wherein during polishing, the weight of the leather shoe leftover material is 1.5-2.5KG, the weight of the chain is 500KG, and the polishing time is 30-80 minutes;
8. solution treatment annealing, namely putting the polished chain into an electric furnace with an automatic temperature adjusting function; performing metallographic detection after annealing, setting the temperature at 1100-1200 ℃, and keeping the temperature for 1.5-2.5 hours; after the set time is up, water is added immediately, the water adding amount is not less than 2.2 cubic meters, and the water temperature is below 32 ℃; the metallographic examination standard is that austenite crystals are not less than 5 degrees or thicker;
9. stretching, adopting a full-automatic correcting machine, correcting the chain by using a pulling force not less than 65-70KN, wherein the corrected chain has an outer length of 50.0-50.5mm and an outer width of a non-welding point of 33.5-34.2 mm; the cumulative deviation of 11 rings does not exceed 1.8 mm;
10. performing penetrant inspection, namely detecting each welding spot by a third-party professional detection mechanism with nuclear-grade qualification;
11. cleaning the surface, namely removing dirt such as liquid medicine left on the surface after penetrant inspection by using a removing type cleaning agent, and wiping and cleaning;
12. and (5) inspecting and warehousing, wherein the inspection contents comprise surface quality inspection: the welding area must not have slag, burn, burr, the surface of the chain ring has no visual crack and the circular arc part has no obvious dent.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (10)
1. A production process of a special chain for a high-temperature reactor is characterized by comprising the following steps: the method comprises the following steps:
s1, raw material inspection, wherein the inspection content comprises material product quality certification and related detection reports provided by a material supplier, round steel size requirements, hardness detection and surface quality;
s2, chain knitting, wherein a full-automatic chain knitting machine is adopted, and the maximum width of an inner groove is kept to be not more than 2.8mm during chain knitting; the maximum width of the outer groove is not more than 7.8 mm; the groove is positioned in the middle of the chain segment; the length of a single ring is controlled between 49.2mm and 49.9 mm; the outer width is controlled between 34.4mm and 34.05 mm;
s3, marking, and numbering chain rings at two ends of the chain by adopting a matrix marking machine;
s4, beveling, wherein beveling is carried out on the chain ring, the width of an inner bevel is 2.5-3mm, the included angle of symmetry of the bevel is 25-30 degrees, an auxiliary tool is used for clamping the chain ring, and the bevel is polished smoothly by a grinder;
s5, welding, namely, utilizing an auxiliary tool to open the groove of the welding line upwards, adopting a manual argon arc welding mode to weld each groove for four times, equally dividing the welding depth, polishing and removing the groove and an oxide layer on the welding line plane of the welding wire after 5 minutes of each welding, continuing to perform the second welding within 60 minutes, and polishing and removing the oxide layer until all welding is finished;
s6, polishing, namely polishing the welding seam table by using an angle polishing machine;
s7, polishing, namely putting the leather shoe leftover material and the chain to be polished into a polishing machine for polishing;
s8, solution annealing, namely putting the polished chain into an electric furnace with an automatic temperature adjusting function; carrying out metallographic detection after annealing;
s9, stretching, and correcting the chain by using a full-automatic correcting machine and a pulling force not less than 65-70 KN;
s10, performing penetrant inspection, and detecting each welding point by a third-party professional detection mechanism with nuclear-grade qualification;
s11, cleaning the surface, namely removing dirt such as liquid medicine left on the surface after the penetrant flaw detection by using a removing type cleaning agent, and wiping the surface for cleaning;
and S12, checking and warehousing.
2. The production process of the special chain for the high-temperature reactor, according to claim 1, is characterized in that: in S1, the round steel size requirement is: nominal diameter of 10mm, tolerance of 0-0.2, out-of-roundness deviation of less than 0.10; the hardness detection adopts a Brinell hardness tester, and the hardness index is HB less than or equal to 180; the surface of the Wu-Shu-Wu-Shu-Wu-Xue-Wu-Xue-Wu-Ju-Wu-Xue-Wu-Xue-Wu-Xue-Wu-Xue.
3. The production process of the special chain for the high-temperature reactor, according to claim 1, is characterized in that: in S5, the welding machine adopts a WS-IGBT type manual argon tungsten-arc welding machine with a current digital display function, and the diameter of a welding wire is 1.2-1.4 mm; and polishing and detecting flaws after the welding is complete, performing a breaking experiment after the welding meets the requirements, and performing witness chain segment synthetic product welding and subsequent processes when the breaking meets the requirements.
4. The production process of the special chain for the high-temperature reactor, according to claim 1, is characterized in that: in S6, the polished surface is smooth and has no concave-convex, the diameter of the welding line is not more than 10.8mm, and the out-of-roundness deviation is not more than 0.5 mm.
5. The production process of the special chain for the high-temperature reactor, according to claim 1, is characterized in that: in S7, the weight of the leftover material of leather shoes is 1.5-2.5KG, the weight of the chain is 500KG, and the polishing time is 30-80 minutes.
6. The production process of the special chain for the high-temperature reactor, according to claim 1, is characterized in that: in S8, setting the temperature at 1100-; after the set time is up, water is added immediately, the water adding amount is not less than 2.2 cubic meters, and the water temperature is below 32 ℃; the metallographic examination standard is that austenite crystals are not less than 5 degrees or coarser.
7. The production process of the special chain for the high-temperature reactor, according to claim 1, is characterized in that: in S9, the corrected chain outer length is 50.0-50.5mm, and the non-welding point outer width is 33.5-34.2 mm; the 11-ring cumulative deviation does not exceed 1.8 mm.
8. The production process of the special chain for the high-temperature reactor, according to claim 1, is characterized in that: in S12, the inspection contents include surface quality inspection: the welding area must not have slag, burn, burr, the surface of the chain ring has no visual crack and the circular arc part has no obvious dent.
9. The production process of the special chain for the high-temperature reactor, according to claim 1, is characterized in that: the auxiliary tool comprises a tool table, and a chain ring clamping device and a chain conveying device are arranged on the tool table;
the chain ring clamping device comprises a fixed clamping plate fixedly connected to the top of the tooling table, a sliding hole is formed in one side, located on the fixed clamping plate, of the top of the tooling table, a sliding block is movably connected inside the sliding hole, a movable clamping plate is fixedly connected inside the sliding block, limiting steps are formed in the upper ends of the inner sides of the movable clamping plate and the fixed clamping plate, an air cylinder is installed at the bottom of the tooling table through a bolt, and the output end of the air cylinder is fixedly connected to one side of the sliding block;
the chain conveying device comprises a U-shaped frame fixedly connected to the top of the tooling table, a lower guide wheel is rotatably mounted inside the U-shaped frame through a rotating shaft, one end of the rotating shaft is connected to the end part of an output shaft of a motor through a coupler, the top of the U-shaped frame is fixedly connected with a spring pipe, a compression spring is arranged inside the spring pipe, a limiting plate is arranged at the lower end of the compression spring, a mounting frame is fixedly connected to the bottom of the limiting plate, and an upper guide wheel matched with the lower guide wheel is rotatably mounted inside the mounting frame;
the top of the tooling table is fixedly connected with a chain guide ring, and the chain guide ring, the fixed clamping plate and the lower guide wheel are arranged on the same straight line.
10. The production process of the special chain for the high-temperature reactor, according to claim 1, is characterized in that: the polishing machine comprises a frame, a circular guide rail is fixedly connected to one side of the frame, a polishing bin with a bin cover is rotatably mounted inside the circular guide rail through a roller, a rotating rod is fixedly connected to the center of the surface of the polishing bin and is rotatably mounted on the frame through a bearing, and one end of the rotating rod is connected with a driving motor through a gearbox.
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| CN211867456U (en) * | 2019-12-12 | 2020-11-06 | 天津市锴瑞金属制品股份有限公司 | Burnishing device is used in chain production |
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