Sucker rod heat treatment temperature control induction control system

Abstract

The present application discloses a temperature control induction control system for heat treatment of a sucker rod, and belongs to the technical field of quenching. The present application is provided with a silo, a transfer channel and a conveying assembly. A loading plate is evenly provided on one side of the silo. The loading plate can transport the sucker rods in the silo through the transfer channel to the conveying assembly, and then transport them to the automatic induction heating and quenching position of the sucker rods through the conveying assembly. The present application is also provided with a medium frequency induction heating coil at the automatic induction heating position of the sucker rods, an air cooling pipe is provided at the end of the medium frequency induction heating coil, and a water cooling pipe is provided at the end of the air cooling pipe, which can effectively isolate heating and cooling, thereby improving the continuity and quenching effect of the sucker rods during induction heating and quenching.

Description

Technical Field

[0001] The invention relates to a temperature control induction control system for heat treatment of a sucker rod, and belongs to the technical field of quenching. Background Art

[0002] Steel quenching is a heat treatment process in which the steel is heated to a temperature above the critical temperature, kept at that temperature for a period of time to make it fully or partially austenitized, and then rapidly cooled at a cooling rate greater than the critical cooling rate to undergo martensite (or bainite) transformation, in order to greatly improve the rigidity, hardness, wear resistance, fatigue strength and toughness of the steel, thereby meeting the different use requirements of various mechanical parts and tools.

[0003] The sucker rod is a key link in the rod pumping system. Every year, a large number of new wells are put into exploitation, and the accessories of the old wells are replaced. Therefore, the demand for the bare rod is increasing year by year. In the quenching production process of the sucker rod, the existing quenching equipment often does not have automatic temperature sensing and automatic feeding devices, and the continuity of production and the quenching effect do not meet people's expectations. During the quenching of some sucker rods, the heating or water cooling is often not strictly isolated, and the water cooling will also reduce the temperature during the quenching heating, thereby affecting the quenching effect of the sucker rod. Therefore, some technicians in this field have developed a sucker rod heat treatment temperature control induction control system to overcome the problems in the above-mentioned background technology. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a temperature control induction control system for heat treatment of sucker rods in view of the above shortcomings. The present invention can automatically and orderly transport the sucker rod polished rods to the automatic induction heating position of the sucker rod polished rods, and isolate water cooling from induction heating during quenching, thereby improving the production continuity during quenching of the sucker rod polished rods and enhancing the quenching effect.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The temperature control induction control system for heat treatment of sucker rods comprises a silo with an opening at the top and columns evenly arranged on one side of the silo. A loading plate is also arranged on one side of the columns. The loading plate is tilted. A transfer channel is also fixedly connected to the top of the column. The transfer channel is tilted. Only one sucker rod can pass through the transfer channel. A conveying assembly is also arranged below the transfer channel. The conveying assembly comprises a first chain conveyor belt and a second chain conveyor belt. A quenching assembly is also arranged between the first chain conveyor belt and the second chain conveyor belt. A photoelectric switch is also arranged above the end of the transfer channel.

[0007] Furthermore, the lower surface of one end of the loading plate is wedge-shaped, and a turntable is fixedly connected to the other end of the loading plate. A lifting plate is also provided in the center of the turntable. The turntable can rotate on the upper end of the lifting plate, and a lifting cylinder is fixedly connected to the lower end of the lifting plate. A groove is also provided on one side of the turntable, and a spring and a telescopic block are embedded in the groove, and the end of the telescopic block is wedge-shaped.

[0008] Furthermore, a driving block is provided at the end of the telescopic block, and the contact surface between the driving block and the telescopic block is also wedge-shaped. The end of the driving block is fixed to the surface of the lifting plate through a connecting rod. A positioning block is also provided above the turntable groove, and the positioning block is fixed to the side of the turntable. Normally, the telescopic block is located on the lower surface of the positioning block under the action of the spring.

[0009] Furthermore, the first chain conveyor belt and the second chain conveyor belt have the same driving structure and implementation method. The surface of the first chain conveyor belt is evenly provided with clamping components. The clamping components include fixed blocks. The fixed blocks are evenly fixed to the surface of the first chain conveyor belt. A clamping cylinder and a vertical rod are fixed to the upper surface of the fixed block. The vertical rods are arranged on both sides of the clamping cylinder. A clamping arm is provided at the upper end of the vertical rod.

[0010] Furthermore, the clamping arm is in the shape of a crank arm, and the clamping arm can rotate at the upper end of the vertical rod. An upper roller is provided at the upper end of the clamping arm, and the upper roller can rotate at the upper end of the clamping arm. A first rotating axis is provided on the surface of the lower half of the clamping arm, and a connecting rod is connected between the surface of the first rotating axis and the clamping cylinder, and a second rotating axis is connected between the clamping cylinder and the connecting rod. A support column is also fixedly connected to the surface of the fixed block, and the support column is in the shape of a crank arm, and a lower roller is provided at the upper end of the support column, and the lower roller and the upper roller are on the same vertical plane.

[0011] Furthermore, a rotating roller is provided on the surface of the lower roller, a servo motor is fixedly connected to the end of the rotating roller, a spiral blade is fixedly connected to the surface of the rotating roller, and the lower roller is located just within the leaf pattern of the spiral blade.

[0012] Furthermore, the quenching assembly includes an induction coil, a first electromagnetic induction switch is provided between the induction coil and the first chain conveyor belt, an infrared sensor is provided below the induction coil, an air cooling pipe is provided at the end of the induction coil, and a second electromagnetic induction switch is provided between the two.

[0013] Furthermore, the air-cooling pipe is connected to a cold air pipe above the air-cooling pipe, a cold air valve is provided on the cold air pipe, a water-cooling pipe is also provided at the end of the air-cooling pipe, a circular ring is provided between the two, a tooth pattern is distributed on the outer surface of the circular ring, a fan blade is fixed inside the circular ring, an upper gear is also provided above the circular ring, and the upper gear and the outer surface of the circular ring are meshed through teeth.

[0014] Furthermore, a rotating motor is fixedly connected to the center of the upper gear, and the rotating motor is fixedly connected to the outer surface of the air cooling pipe. A lower gear is also provided below the ring, and the lower gear and the outer surface of the ring are meshed through teeth. A support rod is provided at the center of the lower gear, and the support rod is fixedly connected to the outer surface of the air cooling pipe.

[0015] The water cooling pipe is in a trumpet shape with openings at both ends, and spray valves are evenly distributed on the inner surface. A waste discharge pipe is also connected below the water cooling pipe.

[0016] Furthermore, it also includes a central controller, which is connected to an input part and an output part. The central controller is used to receive data detected by the input part and send operating instructions to the output part to realize the automated operation of each part in the sucker rod heat treatment temperature control induction control system. The central controller is also connected to an operation screen, which is used to display the operating status and parameters of the sucker rod heat treatment temperature control induction control system.

[0017] The present invention adopts the above technical solution, and has the following technical effects compared with the prior art:

[0018] 1. The present invention is provided with a silo, a transfer channel and a conveying assembly. Columns are evenly arranged on one side of the silo, and a loading plate is arranged on the side of the column. The loading plate can be raised and lowered, and the sucker rod polished rod in the silo can be transported to the conveying assembly through the transfer channel, and then transported to the automatic induction heating and quenching place of the sucker rod polished rod through the conveying assembly, thereby improving the continuity of the sucker rod polished rod during induction heating and quenching.

[0019] 2. The automatic induction heating part of the sucker rod of the present invention is also provided with a medium frequency induction heating coil, an air cooling pipe is provided at the end of the medium frequency induction heating coil, a water cooling pipe is provided at the end of the air cooling pipe, and a fan blade is provided between the two. The fan blade can blow the spray water of the water cooling pipe away from the air cooling pipe, effectively isolate the heating and cooling, and improve the effect of quenching the sucker rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale and orientation.

[0021] Figure 1 It is a schematic diagram of the structural connection of the silo, the first chain conveyor belt and the quenching assembly of the present invention;

[0022] Figure 2 This is a schematic diagram of the structural connection between the quenching component and the conveying component of the present invention;

[0023] Figure 3 This is a schematic diagram of the electrical network connection principle of the central controller of the present invention.

[0024] In the figure: 1-bin, 2-column, 3-transfer channel, 4-photoelectric switch, 5-loading plate, 6-turntable, 7-lifting plate, 8-lifting cylinder, 9-spring, 10-telescopic block, 11-driving block, 12-positioning block, 13-first chain conveyor belt, 14-clamping cylinder, 15-clamping arm, 16-upper roller, 17-lower roller, 18-vertical rod, 19-support column, 20-rotating roller, 21-servo motor, 22-induction coil, 23-cold air duct, 24-cold air valve, 25-upper gear, 26-rotating motor, 27-lower gear, 28-air cooling duct, 29-first electromagnetic induction switch, 30-second electromagnetic induction switch, 31-infrared sensor, 32-water cooling duct, 33-waste discharge duct, 34-fixed block, 35-quenching assembly, 36-second chain conveyor belt, 37-ring. DETAILED DESCRIPTION

[0025] like Figure 1 and Figure 2 As shown, the temperature control induction control system for heat treatment of sucker rods comprises a silo 1, which has an opening at the top. The silo 1 is used to hold the polished sucker rods. Columns 2 are evenly arranged on one side of the silo 1, and a loading plate 5 is also arranged on one side of the column 2. The loading plate 5 is tilted, and the lower surface of one end of the loading plate 5 is wedge-shaped. A turntable 6 is fixedly connected to the other end of the loading plate 5. A lifting plate 7 is also arranged in the center of the turntable 6. The turntable 6 can rotate on the upper end of the lifting plate 7, and a lifting cylinder 8 is fixedly connected to the lower end of the lifting plate 7. A groove is also arranged on one side of the turntable 6, and a spring 9 and a telescopic block 10 are inlaid in the groove. The end of the telescopic block 10 is wedge-shaped, and a driving block 11 is also arranged at the end of the telescopic block 10. The contact surface between the driving block 11 and the telescopic block 10 is also wedge-shaped. The end of the driving block 11 is fixedly connected to the surface of the lifting plate 7 through a connecting rod. A positioning block 12 is also arranged above the groove of the turntable 6, and the positioning block 12 is fixedly connected to the side of the turntable 6. Usually, the telescopic block 10 is located on the lower surface of the positioning block 12 under the action of the spring 9.

[0026] When the oil pumping rod in the silo 1 needs to be quenched and transported, the lifting cylinder 8 is lifted and lifted upward, and the loading plate 5 receives the oil pumping rod in the silo 1 and lifts it to the top of the column 2. The top of the column 2 is also fixedly connected with a transfer channel 3, and the transfer channel 3 is placed at an angle. The transfer channel 3 can only accommodate one oil pumping rod through the transfer channel 3. The oil pumping rod lifted to the top of the column 2 slides into the transfer channel 3, and then the lifting cylinder 8 descends. Due to the presence of the wedge-shaped surface of the loading plate 5, the loading plate 5 slides down along the surface of the oil pumping rod in the silo 1, and the telescopic block 10 retracts along the wedge-shaped surface of the driving block 11 into the groove of the turntable 6, thereby ensuring that the loading plate 5 slides down smoothly to the lower end of the column 2. When the loading plate 5 slides to the lower end of the column 2, the telescopic block 10 is reset under the action of the spring 9 and extends out again to the lower surface of the positioning block 12, and this is repeated. The oil pumping rod in the silo 1 can be transported to the transfer channel 3 in turn.

[0027] A conveying assembly is also provided below the transfer channel 3, and the conveying assembly includes a first chain conveyor belt 13 and a second chain conveyor belt 36. Since the driving structure and the implementation method are the same, only the first chain conveyor belt 13 is taken as an example below. The surface of the first chain conveyor belt 13 is evenly provided with a clamping assembly, and the clamping assembly includes a fixed block 34, and the fixed block 34 is evenly fixed to the surface of the first chain conveyor belt 13. The upper surface of the fixed block 34 is fixed with a clamping cylinder 14 and a vertical rod 18. The vertical rod 18 is arranged on both sides of the clamping cylinder 14. A clamping arm 15 is provided at the upper end of the vertical rod 18. The clamping arm 15 is in the form of a crooked arm, and the clamping arm 15 can be rotated at the upper end of the vertical rod 18 Rotate, an upper roller 16 is provided at the upper end of the clamping arm 15, and the upper roller 16 can rotate at the upper end of the clamping arm 15, a first rotating axis is provided on the surface of the lower half of the clamping arm 15, a connecting rod is connected between the surface of the first rotating axis and the clamping cylinder 14, a second rotating axis is connected between the clamping cylinder 14 and the connecting rod, a supporting column 19 is also fixedly connected to the surface of the fixed block 34, the supporting column 19 is in the shape of a crank arm, a lower roller 17 is provided on the upper end of the supporting column 19, the lower roller 17 and the upper roller 16 are on the same vertical plane, a photoelectric switch 4 is also provided above the end of the transfer channel 3, and the photoelectric switch 4 is used to detect whether a sucker rod bare rod falls at the end of the transfer channel 3.

[0028] When the photoelectric switch 4 detects that a sucker rod has slipped from the end of the transfer channel 3 and fallen into the upper roller 16 and the lower roller 17, the clamping cylinder 14 contracts, driving the first rotating shaft to move downward through the connecting rod, driving the clamping arms 15 to contract inward, and clamping the sucker rod between the upper roller 16 and the lower roller 17.

[0029] The surface of the lower roller 17 is also provided with a rotating roller 20, the end of which is fixedly connected to a servo motor 21, and the surface of the rotating roller 20 is fixedly connected to a spiral blade. The lower roller 17 is just located within the leaf pattern of the spiral blade. When the servo motor 21 starts to rotate, it drives the rotating roller 20 to rotate, thereby driving the lower roller 17 to rotate and move forward in the direction of rotation of the spiral blade, thereby realizing the first chain conveyor belt 13 to transport the sucker rod.

[0030] A quenching assembly 35 is also provided between the first chain conveyor belt 13 and the second chain conveyor belt 36. The quenching assembly 35 includes an induction coil 22. The induction coil 22 is used to input a medium-frequency current to induction heat the sucker rod inserted therein. A first electromagnetic induction switch 29 is also provided between the induction coil 22 and the first chain conveyor belt 13. The first electromagnetic induction switch 29 is used to detect the position of the sucker rod reaching therein. An infrared sensor 31 is also provided below the induction coil 22. The infrared sensor 31 is used to detect the temperature of the sucker rod when the sucker rod is heated in the induction coil 22. An air cooling pipe 28 is also provided at the end of the induction coil 22. A second electromagnetic induction switch 30 is provided between the two. The second electromagnetic induction switch 30 is used to detect the position of the sucker rod reaching therein.

[0031] The air cooling pipe 28 is connected with a cold air pipe 23 above, and a cold air valve 24 is arranged on the cold air pipe 23. When the cold air valve 24 is opened, the cold air pipe 23 passes cold air into the air cooling pipe 28. A water cooling pipe 32 is also arranged at the end of the air cooling pipe 28. A circular ring 37 is arranged between the two. The outer surface of the circular ring 37 is distributed with tooth patterns. The circular ring 37 is fixed with fan blades. An upper gear 25 is also arranged above the circular ring 37. The upper gear 25 and the outer surface of the circular ring 37 are meshed by teeth. The center of the upper gear 25 is also fixed with a rotating The motor 26, the rotating motor 26 is fixedly connected to the outer surface of the air-cooling pipe 28, and a lower gear 27 is also provided below the circular ring 37. The lower gear 27 and the outer surface of the circular ring 37 are meshed with each other through teeth. A support rod is provided at the center of the lower gear 27, and the support rod is fixedly connected to the outer surface of the air-cooling pipe 28. When the rotating motor 26 rotates, it drives the upper gear 25 to rotate. The upper gear 25 rotates to drive the circular ring 37 to rotate between the upper gear 25 and the lower gear 27. The fan blades in the circular ring 37 rotate to blow the cold air to one side of the water-cooling pipe 32.

[0032] The water cooling pipe 32 is in the shape of a trumpet with openings at both ends, and spray valves are evenly distributed on the inner surface. A waste pipe 33 is connected to the lower part of the water cooling pipe 32. When the first electromagnetic induction switch 29 detects that the sucker rod has entered the induction coil 22, a medium frequency current of a certain magnitude is passed through the induction coil 22, and the sucker rod is heated. The heating temperature of the sucker rod surface is detected by the infrared sensor 31 to control the magnitude of the medium frequency current passed through the induction coil 22, so that the heating temperature of the sucker rod surface is maintained at a constant value. When the second electromagnetic induction switch 30 detects that the sucker rod has left the induction coil 22 and entered the air cooling pipe 28, the cold air valve 24, the rotating motor 26, and the second chain The conveyor belt 36 and the spray valve are opened, and the heated sucker rod is first cooled in the air-cooling pipe 28, and then enters the water-cooling pipe 32 for water cooling. At the same time, due to the blowing effect of the fan blades of the ring 37, the cooling water is blown into the water-cooling pipe 32 to prevent the spray water from entering the air-cooling pipe 28, and the water cooling and air cooling are isolated to prevent the water cooling from cooling too fast, which will cause a lot of tissue stress, easily causing serious deformation or even cracking of the workpiece, thereby improving the quenching effect of the sucker rod after heating. The spray water in the water-cooling pipe 32 is discharged through the waste pipe 33, and the sucker rod quenched in the water-cooling pipe 32 is transported to the storage place through the second chain conveyor belt 36, and this is repeated.

[0033] like Figure 3As shown, the sucker rod heat treatment temperature control induction control system also includes a central controller, which is connected to an input part and an output part. The central controller is used to receive data detected by the input part and send operating instructions to the output part to realize the automatic operation of each part in the sucker rod heat treatment temperature control induction control system. The central controller is also connected to an operation screen, which is used to display the operating status and parameters of each part in the sucker rod heat treatment temperature control induction control system.

[0034] The input part includes a photoelectric switch, a first electromagnetic induction switch, a second electromagnetic induction switch and an infrared sensor. The input part is used to monitor the operating data in the sucker rod heat treatment temperature control induction control system. The output part includes a lifting cylinder, a first chain conveyor belt, a clamping cylinder, a servo motor, an induction coil, a cold air valve, a rotating motor and a second chain conveyor belt. The central controller sends an operating instruction to the output part through the operating data detected by the input part to realize the automatic operation of the sucker rod heat treatment temperature control induction control system.

[0035] The description of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the invention and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. The temperature control induction control system for heat treatment of sucker rods is characterized by: The material bin (1) comprises a material bin (1), the material bin (1) has an opening at the top, columns (2) are evenly arranged on one side of the material bin (1), a material loading plate (5) is also arranged on one side of the columns (2), the material loading plate (5) is tilted, a transfer channel (3) is fixedly connected to the top of the column (2), the transfer channel (3) is tilted, only one sucker rod can be accommodated in the transfer channel (3), a conveying assembly is also arranged below the transfer channel (3), the conveying assembly comprises a first chain conveyor belt (13) and a second chain conveyor belt (36), a quenching assembly (35) is also arranged between the first chain conveyor belt (13) and the second chain conveyor belt (36), and a photoelectric switch (4) is also arranged above the end of the transfer channel (3); The lower surface of one end of the material loading plate (5) is wedge-shaped, and the other end of the material loading plate (5) is fixedly connected to a turntable (6). A lifting plate (7) is also provided at the center of the turntable (6). The turntable (6) can rotate on the upper end of the lifting plate (7). A lifting cylinder (8) is fixedly connected to the lower end of the lifting plate (7). A groove is also provided on one side of the turntable (6). A spring (9) and a telescopic block (10) are embedded in the groove. The end of the telescopic block (10) is wedge-shaped. A driving block (11) is also provided at the end of the telescopic block (10). The contact surface between the driving block (11) and the telescopic block (10) is also wedge-shaped. The end of the driving block (11) is fixedly connected to the surface of the lifting plate (7) through a connecting rod. A positioning block (12) is also provided above the groove of the turntable (6). The positioning block (12) is fixedly connected to the side of the turntable (6). Normally, the telescopic block (10) is located on the lower surface of the positioning block (12) under the action of the spring (9). The quenching assembly (35) comprises an induction coil (22), a first electromagnetic induction switch (29) is provided between the induction coil (22) and the first chain conveyor belt (13), an infrared sensor (31) is provided below the induction coil (22), an air cooling pipe (28) is provided at the end of the induction coil (22), and a second electromagnetic induction switch (30) is provided between the two; The air cooling pipe (28) is connected to a cold air pipe (23) above, and a cold air valve (24) is provided on the cold air pipe (23). A water cooling pipe (32) is also provided at the end of the air cooling pipe (28). A circular ring (37) is provided between the two. The outer surface of the circular ring (37) is provided with tooth patterns. A fan blade is fixedly connected to the circular ring (37). An upper gear (25) is also provided above the circular ring (37). The upper gear (25) and the outer surface of the circular ring (37) are meshed with teeth. A rotating motor (26) is also fixedly connected to the center of the upper gear (25), and the rotating motor (26) is fixedly connected to the outer surface of the air cooling pipe (28). A lower gear (27) is also provided below the circular ring (37), and the lower gear (27) and the outer surface of the circular ring (37) are meshed with each other through teeth. A support rod is provided at the center of the lower gear (27), and the support rod is fixedly connected to the outer surface of the air cooling pipe (28); The water cooling pipe (32) is in the shape of a trumpet with openings at both ends, and spray valves are evenly distributed on the inner surface. A waste discharge pipe (33) is also connected below the water cooling pipe (32).

2. The temperature control induction control system for heat treatment of sucker rods according to claim 1, characterized in that: The first chain conveyor belt (13) and the second chain conveyor belt (36) have the same driving structure and implementation method. The surface of the first chain conveyor belt (13) is evenly provided with a clamping assembly, and the clamping assembly includes a fixed block (34). The fixed block (34) is evenly fixed to the surface of the first chain conveyor belt (13). The upper surface of the fixed block (34) is fixed with a clamping cylinder (14) and a vertical rod (18). The vertical rod (18) is arranged on both sides of the clamping cylinder (14). A clamping arm (15) is provided at the upper end of the vertical rod (18).

3. The temperature control induction control system for heat treatment of sucker rods according to claim 2, characterized in that: The clamping arm (15) is in the form of a crank arm. The clamping arm (15) can rotate on the upper end of the vertical rod (18). An upper roller (16) is provided at the upper end of the clamping arm (15). The upper roller (16) can rotate on the upper end of the clamping arm (15). A first rotating shaft is provided on the surface of the lower half of the clamping arm (15). A connecting rod is connected between the surface of the first rotating shaft and the clamping cylinder (14). A second rotating shaft is connected between the clamping cylinder (14) and the connecting rod. A support column (19) is also fixedly connected to the surface of the fixed block (34). The support column (19) is in the form of a crank arm. A lower roller (17) is provided at the upper end of the support column (19). The lower roller (17) and the upper roller (16) are on a vertical plane.

4. The temperature control induction control system for heat treatment of a sucker rod according to claim 3, characterized in that: A rotating roller (20) is also provided on the surface of the lower roller (17), a servo motor (21) is fixedly connected to the end of the rotating roller (20), a spiral blade is fixedly connected to the surface of the rotating roller (20), and the lower roller (17) is located exactly within the leaf pattern of the spiral blade.

5. The temperature control induction control system for heat treatment of sucker rods according to claim 1, characterized in that: It also includes a central controller, which is connected to an input part and an output part. The central controller is used to receive data detected by the input part and send operating instructions to the output part to realize the automatic operation of each part in the sucker rod heat treatment temperature control induction control system. The central controller is also connected to an operation screen, which is used to display the operating status and parameters of the sucker rod heat treatment temperature control induction control system.

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