A welded joint clamping device for a pipe condenser

Abstract

The application discloses a welded interface clamping device for a tubular condenser, which comprises a platform, rack bodies arranged on both sides of the top end of the platform, clamping discs movably installed on the inner sides of the two rack bodies, a positioning mechanism arranged at the bottom end of the left rack body, the positioning mechanism comprising a first motor, a driving gear and a driven gear, a base fixedly installed outside the right side of the platform, and a feeding box fixedly installed at the top end of the base. When the welding of the first cooling pipe is completed, the first motor is started, the two driving gears are synchronously rotated through the cooperation of the cross rod and the cross sleeve during the rotation of the first motor, the gear ring is synchronously rotated through the driven belt pulley at the top end during the rotation of the driving gear, the angle of the clamping disc is adjusted to move the other rod groove to the same height as the push plate, and then the cooling pipe is pushed into through the push plate after being lifted, so that the angle of the pipe disc is conveniently adjusted, and the insertion of the cooling pipe is more convenient.

Description

Technical Field

[0001] This invention relates to the field of tubular condensers, specifically to a welded interface clamping device for tubular condensers. Background Technology

[0002] A condenser is a heat exchanger that condenses steam from a steam turbine into water; it is also called a condenser. Condensers are mainly used in steam turbine power plants and are divided into water-cooled condensers and air-cooled condensers. The high-pressure spherical independent water chamber and its tube bundle structure used in thermal network condensers include S-shaped tube bundles, gaskets, and sealing rings. The S-shaped tube bundle increases the area of ​​the tube bundle of the same length, ultimately improving the efficiency of steam liquefaction. The gaskets and sealing rings improve the sealing performance of the device and increase its safety.

[0003] When manufacturing tubular condensers, an interface clamping device is needed to clamp and fix the tube coil to several cooling tubes, and then a welding device is used to weld and seal the interface. However, the existing interface clamping devices on the market cannot adjust the angle of the tube coil after clamping it. Each time the tube is inserted, it needs to be inserted from different heights, which makes the assembly process cumbersome. Summary of the Invention

[0004] The purpose of this invention is to provide a welded interface clamping device for tubular condensers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welded interface clamping device for a tubular condenser, comprising...

[0006] The platform has frames on both sides of its top, and clamps are movably installed on the inner sides of both frames. A positioning mechanism is provided at the bottom of the left frame, and the positioning mechanism includes a first motor, a driving gear, and a driven gear.

[0007] A base is fixedly installed on the right side of the platform, a feeding box is fixedly installed on the top of the base, and a lifting mechanism is provided on one side of the base. The lifting mechanism includes a second motor, a driving pulley and a driven pulley.

[0008] A feeding mechanism is provided on the top exterior of the feeding box on the side away from the platform. The feeding mechanism includes a hanger, an electric push rod, and a push plate. A pressing mechanism is provided on the top exterior of the feeding box. The pressing mechanism includes a top frame, a spring rod, and a pressure plate.

[0009] Furthermore, a dual-axis motor is fixedly installed in the middle of the platform, and a first lead screw is fixedly installed at both ends of the dual-axis motor. Movable sleeves are movably installed on the outside of the two first lead screws, and the two movable sleeves are respectively connected to the lower surface of the bottom end of the two frames. The threads at both ends of the first lead screws are opposite.

[0010] Furthermore, driven gears are movably mounted on the bottom ends of both frames via rotating shafts. A gear ring is annularly arranged on the outer side of the chuck, and the gear ring meshes with the driven gear. A cross rod and a cross sleeve are respectively fixedly mounted on the bottom ends of the two frames via transmission shafts. The cross rod and the cross sleeve are movably connected. A driving gear is fixedly mounted on the opposite end of the cross rod and the cross sleeve. A first motor is provided at the bottom end of the left frame. The output shaft of the first motor is fixedly connected to the driving gear at one end of the cross rod, and the driving gear meshes with the driven gear.

[0011] Furthermore, guide rollers are movably mounted on the four inner corners of the frame via rotating shafts, and the four guide rollers are slidably connected to the outer wall of the clamping plate.

[0012] Furthermore, a second motor is fixedly installed on one top side of the base, and a second lead screw is provided on both sides of the base inside the feeding box. A lifting plate is movably installed between the two second lead screws, and a driven pulley is provided at the bottom end of the two second lead screws inside the base. Two driving pulleys are arranged sequentially from top to bottom at the output shaft end of the second motor, and the two driving pulleys are movably connected to the two driven pulleys respectively through belts.

[0013] Furthermore, a hanger is fixedly installed on the top outer wall of the side of the feeding box away from the frame, and an electric push rod is fixedly installed at the bottom end of the hanger. The output shaft of the electric push rod is fixedly connected to the push plate.

[0014] Furthermore, a top frame is fixedly installed directly above the top of the feeding box, and several spring rods are arranged side by side at the top of the top frame, with pressure plates fixedly connected to the bottom ends of the spring rods.

[0015] Furthermore, the pressure plate has a trapezoidal structure, and the side of the pressure plate closest to the push plate is inclined upward.

[0016] Furthermore, a cylinder is fixedly installed on the outer side of the top of the clamping plate, and a clamping plate is provided at one end of the output shaft of the cylinder inside the clamping plate.

[0017] Furthermore, several rod grooves are provided between the two sides of the clamping plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. After the first cooling pipe is welded, the first motor is started. When the first motor rotates, it controls the two drive gears to rotate synchronously through the cross rod and cross sleeve. When the drive gears rotate, they drive the gear ring to rotate synchronously through the driven pulley at the top. When the gear ring rotates, the chuck is controlled to adjust the angle and move the other rod slot to the same height as the push plate. Then, the cooling pipe is controlled to be lifted and pushed in through the push plate, which makes it easier to adjust the angle of the tube plate and makes it more convenient to insert the cooling pipe.

[0020] 2. After the second motor of the present invention starts, it drives two active pulleys to rotate. The two active pulleys drive the driven pulleys at the bottom of the two second lead screws to rotate synchronously through the belt. Then, the two rotating second lead screws drive the lifting plate to rise. When the lifting plate rises, it lifts the cooling pipes stacked on it by one pipe diameter, so as to facilitate the automatic lifting of the cooling pipes to a suitable height.

[0021] 3. After the electric actuator of the present invention is started, it pushes the push plate forward, and inserts the cooling pipe on one side of the top end into the clamping plate on the right side through the push plate until the cooling pipe is fixed in the rod groove at the top of the two clamping plates. Then, the connection between the two ends of the cooling pipe and the two pipe plates can be welded, so as to facilitate the automatic insertion of the cooling pipe between the two pipe plates. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a welded interface clamping device for a tubular condenser according to the present invention.

[0023] Figure 2 This is a cross-sectional schematic diagram of the feeding box of a welded interface clamping device for a tubular condenser according to the present invention.

[0024] Figure 3 This is a schematic diagram of the lifting mechanism of a welded interface clamping device for a tubular condenser according to the present invention.

[0025] Figure 4 This invention relates to a welded interface clamping device for a tubular condenser. Figure 1 An enlarged view of point A in the diagram;

[0026] Figure 5 This invention relates to a welded interface clamping device for a tubular condenser. Figure 1 Enlarged diagram of point B in the diagram;

[0027] Figure 6 This invention relates to a welded interface clamping device for a tubular condenser. Figure 1 An enlarged diagram of point C in the diagram.

[0028] In the diagram: 1. Platform; 2. Frame; 3. Clamping plate; 4. Positioning mechanism; 401. First motor; 402. Drive gear; 403. Driven gear; 5. Base; 6. Feeding box; 7. Lifting mechanism; 701. Second motor; 702. Drive pulley; 703. Driven pulley; 8. Feeding mechanism; 801. Hanger; 802. Electric push rod; 803. Push plate; 9. Pressing mechanism; 901. Top frame; 902. Spring rod; 903. Pressing plate; 10. Dual-axis motor; 11. First lead screw; 12. Movable sleeve; 13. Gear ring; 14. Drive shaft; 15. Cross rod; 16. Cross sleeve; 17. Guide roller; 18. Second lead screw; 19. Rod groove; 20. Cylinder; 21. Clamping plate; 22. Lifting plate. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1-6 As shown, the present invention provides a technical solution: a welded interface clamping device for a tubular condenser, comprising a platform 1, with frames 2 on both sides of the top of the platform 1, and clamping plates 3 movably mounted on the inner sides of both frames 2. A positioning mechanism 4 is provided at the bottom of the left frame 2, the positioning mechanism 4 including a first motor 401, a driving gear 402, and a driven gear 403; the driven gear 403 is movably mounted at the bottom of both frames 2 via a rotating shaft, and a gear ring 13 is annularly arranged on the outer side of the clamping plate 3, the gear ring 13 meshing with the driven gear 403, and the bottom of the two frames 2 are respectively connected by a transmission... A cross rod 15 and a cross sleeve 16 are fixedly mounted on shaft 14. The cross rod 15 and the cross sleeve 16 are movably connected. A drive gear 402 is fixedly mounted on one opposite end of the cross rod 15 and the cross sleeve 16. A first motor 401 is set at the bottom of the left frame 2. The output shaft of the first motor 401 is fixedly connected to the drive gear 402 at one end of the cross rod 15. The drive gear 402 meshes with the driven gear 403. Guide rollers 17 are movably mounted on the four inner corners of the frame 2 through rotating shafts. The four guide rollers 17 are slidably connected to the outer wall of the clamping plate 3. Several rod grooves 19 are provided between the two sides of the clamping plate 3.

[0031] In this embodiment, after the first cooling pipe is welded, the first motor 401 is started. When the first motor 401 rotates, it controls the two drive gears 402 to rotate synchronously through the cross rod 15 and the cross sleeve 16. When the drive gear 402 rotates, it drives the gear ring 13 to rotate synchronously through the driven pulley 703 at the top. When the gear ring 13 rotates, it controls the chuck 3 to adjust the angle and move the other rod groove 19 to the same height as the push plate 803. Then, it controls the cooling pipe to be lifted and pushed in through the push plate 803, which makes it easier to adjust the angle of the tube plate and makes it more convenient to insert the cooling pipe.

[0032] like Figure 2 and Figure 3 As shown, a base 5 is fixedly installed on the right side of the platform 1. A feeding box 6 is fixedly installed on the top of the base 5. A lifting mechanism 7 is provided on one side of the base 5. The lifting mechanism 7 includes a second motor 701, a driving pulley 702, and a driven pulley 703. The second motor 701 is fixedly installed on the top of one side of the base 5. A second lead screw 18 is provided on both sides of the base 5 inside the feeding box 6. A lifting plate 22 is movably installed between the two second lead screws 18. A driven pulley 703 is provided at the bottom of the two second lead screws 18 inside the base 5. Two driving pulleys 702 are arranged sequentially from top to bottom at the output shaft end of the second motor 701. The two driving pulleys 702 are movably connected to the two driven pulleys 703 respectively through belts.

[0033] In this embodiment, after the second motor 701 is started, it drives the two active pulleys 702 to rotate. The two active pulleys 702 drive the driven pulleys 703 at the bottom of the two second lead screws 18 to rotate synchronously through the belt. Then, the two rotating second lead screws 18 drive the lifting plate 22 to rise. When the lifting plate 22 rises, it lifts the stacked cooling pipes on it by one pipe diameter, so as to facilitate the automatic lifting of the cooling pipes to a suitable height.

[0034] like Figure 2 As shown, a feeding mechanism 8 is provided on the top of the side of the feeding box 6 away from the platform 1. The feeding mechanism 8 includes a hanger 801, an electric push rod 802 and a push plate 803. The hanger 801 is fixedly installed on the outer wall of the top of the side of the feeding box 6 away from the frame 2. The electric push rod 802 is fixedly installed at the bottom of the hanger 801. The output shaft of the electric push rod 802 is fixedly connected to the push plate 803.

[0035] In this embodiment, after the electric actuator 802 is started, it pushes the push plate 803 forward. The push plate 803 inserts the cooling pipe on one side of the top end into the clamping plate 3 on the right side until the cooling pipe is fixed in the rod groove 19 at the top of the two clamping plates 3. Then, the connection between the two ends of the cooling pipe and the two pipe plates can be welded, so as to facilitate the automatic insertion of the cooling pipe between the two pipe plates.

[0036] like Figure 2As shown, a pressing mechanism 9 is provided on the outside of the top of the feeding box 6. The pressing mechanism 9 includes a top frame 901, spring rods 902 and a pressing plate 903. The top frame 901 is fixedly installed directly above the top of the feeding box 6. Several spring rods 902 are arranged side by side on the top of the top frame 901. The bottom ends of the spring rods 902 are fixedly connected to the pressing plate 903. The pressing plate 903 has a trapezoidal structure and the side of the pressing plate 903 near the push plate 803 is inclined upward.

[0037] In this embodiment, when the push plate 803 pushes the cooling pipe, the front end of the push plate 803 will push against the pressure plate 903. When the push plate 803 retracts, the pressure plate 903 will be pressed down by the rebound of the spring rod 902, thereby preventing the second cooling pipe from being displaced when the push plate 803 moves back and forth.

[0038] like Figure 4 and Figure 5 As shown, a dual-axis motor 10 is fixedly installed in the middle of the platform 1. A first lead screw 11 is fixedly installed at both ends of the dual-axis motor 10. Movable sleeves 12 are movably installed on the outside of the two first lead screws 11. The two movable sleeves 12 are respectively connected to the lower surface of the bottom end of the two frames 2. The threads at both ends of the first lead screw 11 are opposite.

[0039] In this embodiment, the distance between the two frames 2 is adjusted to match the length of the cooling pipe to be welded. When adjusting the distance between the two frames 2, the dual-axis motor 10 is started. The dual-axis motor 10 controls the rotation of the two first lead screws 11. The two first lead screws 11 control the lateral movement of the two movable sleeves 12. In turn, the movable sleeves 12 drive the two frames 2 to move synchronously, so as to facilitate the fitting and clamping of cooling pipes of different lengths.

[0040] like Figure 2 As shown, a cylinder 20 is fixedly installed on the outer side of the top of the clamping plate 3, and a clamping plate 21 is provided at one end of the output shaft of the cylinder 20 inside the clamping plate 3.

[0041] In this embodiment, the two tube coils are placed in the two clamping plates 3 respectively, and then the cylinder 20 is activated. The cylinder 20 controls the clamping plate 21 to clamp the tube coils in the clamping plates 3, so that the tube coils will not be displaced during welding.

[0042] Working principle: When clamping the tube coils, the two tube coils are placed in the two clamping plates 3 respectively. Then, the cylinder 20 is activated, which controls the clamping plate 21 to clamp the tube coils in the clamping plate 3. Then, the distance between the two frames 2 is adjusted according to the length of the cooling tubes to be welded. When adjusting the distance between the two frames 2, the dual-axis motor 10 is activated. The dual-axis motor 10 controls the rotation of the two first lead screws 11. The two first lead screws 11 control the lateral movement of the two movable sleeves 12, which in turn drive the two frames 2 to move synchronously through the movable sleeves 12. After the distance between the two frames 2 is adjusted, the second motor 701 is activated. After the second motor 701 is activated, it drives the two driving pulleys 702 to rotate. The two driving pulleys 702 drive the driven pulleys 703 at the bottom of the two second lead screws 18 to rotate synchronously through the belt. In turn, the two rotating second lead screws 18 drive the lifting plate 22 to rise. The lifting plate 22 rises. The stacked cooling pipes are lifted to a height equal to the pipe diameter. Then, the electric push rod 802 is activated. After the electric push rod 802 is activated, the push plate 803 is pushed forward. The push plate 803 inserts the cooling pipe on one side of the top into the clamping plate 3 on the right until the cooling pipe is fixed in the rod groove 19 at the top of the two clamping plates 3. Then, the connection between the two ends of the cooling pipe and the two pipe plates can be welded. After the first cooling pipe is welded, the first motor 401 is activated. When the first motor 401 rotates, it controls the two drive gears 402 to rotate synchronously through the cross rod 15 and the cross sleeve 16. When the drive gear 402 rotates, it drives the gear ring 13 to rotate synchronously through the driven pulley 703 at the top. When the gear ring 13 rotates, it controls the clamping plate 3 to adjust the angle and move the other rod groove 19 to the same height as the push plate 803. Then, the cooling pipe is lifted and pushed in again through the push plate 803.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welded interface clamping device for a tubular condenser, characterized in that: include Platform (1), with frames (2) on both sides of the top of the platform (1), and clamps (3) movably installed on the inner sides of the two frames (2). A positioning mechanism (4) is provided at the bottom of the left frame (2). The positioning mechanism (4) includes a first motor (401), a drive gear (402) and a driven gear (403). A base (5) is fixedly installed on the right side of the platform (1), and a feeding box (6) is fixedly installed on the top of the base (5). A lifting mechanism (7) is provided on one side of the base (5). The lifting mechanism (7) includes a second motor (701), a driving pulley (702), and a driven pulley (703). The top of the feeding box (6) away from the platform (1) is provided with a feeding mechanism (8). The feeding mechanism (8) includes a hanger (801), an electric push rod (802) and a push plate (803). The top of the feeding box (6) is provided with a pressing mechanism (9). The pressing mechanism (9) includes a top frame (901), a spring rod (902) and a pressing plate (903). A dual-axis motor (10) is fixedly installed in the middle of the platform (1). A first lead screw (11) is fixedly installed at both ends of the dual-axis motor (10). Movable sleeves (12) are movably installed on the outside of the two first lead screws (11). The two movable sleeves (12) are respectively connected to the bottom lower surface of the two frames (2). The threads at both ends of the first lead screw (11) are opposite. Both frames (2) have driven gears (403) movably mounted at their bottom ends via rotating shafts. A gear ring (13) is provided on the outer side of the chuck (3), and the gear ring (13) meshes with the driven gear (403). The bottom ends of the two frames (2) are respectively fixedly mounted with a cross rod (15) and a cross sleeve (16) via a transmission shaft (14). The cross rod (15) and the cross sleeve (16) are movably connected. A driving gear (402) is fixedly mounted at the opposite ends of the cross rod (15) and the cross sleeve (16). A first motor (401) is provided at the bottom end of the left frame (2). The output shaft of the first motor (401) is fixedly connected to the driving gear (402) at one end of the cross rod (15), and the driving gear (402) meshes with the driven gear (403). The four inner corners of the frame (2) are each equipped with guide rollers (17) via rotating shafts, and the four guide rollers (17) are slidably connected to the outer wall of the clamp (3). A second motor (701) is fixedly installed on one side of the top of the base (5). The base (5) is provided with second lead screws (18) on both sides inside the feeding box (6). A lifting plate (22) is movably installed between the two second lead screws (18). The bottom ends of the two second lead screws (18) are provided with driven pulleys (703) inside the base (5). The output shaft end of the second motor (701) is provided with two driving pulleys (702) from top to bottom. The two driving pulleys (702) are movably connected to the two driven pulleys (703) respectively through belts. A hanger (801) is fixedly installed on the outer wall of the top of the feeding box (6) away from the frame (2). An electric push rod (802) is fixedly installed at the bottom of the hanger (801). The output shaft of the electric push rod (802) is fixedly connected to the push plate (803). A top frame (901) is fixedly installed directly above the top of the feeding box (6). Several spring rods (902) are arranged side by side at the top of the top frame (901), and pressure plates (903) are fixedly connected to the bottom of the several spring rods (902). The pressure plate (903) has a trapezoidal structure, and the side of the pressure plate (903) near the push plate (803) is inclined upward; A cylinder (20) is fixedly installed on the outer side of the top of the clamp (3), and a clamping plate (21) is provided at one end of the output shaft of the cylinder (20) inside the clamp (3). Several rod grooves (19) are provided between the two sides of the clamp (3).

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