Metal bellows conveying device

Abstract

The present invention relates to the technical field of pipe transportation, specifically a metal bellows conveying device, comprising a lifting plate, a lifting lug is fixedly installed on the upper portion of the lifting plate, a centering mechanism for centering and grabbing the outermost bellows is provided on the lower middle portion of the lifting plate, and a clamping mechanism for centering and clamping the inner bellows is provided on the lower portions of the left and right sides of the lifting plate. The present invention abuts against the upper side of the outermost metal bellows by a supporting plate, so that the supporting plate can automatically move the grabbing assembly to the middle position of the outermost metal bellows through the centering assembly and the driving assembly, so that the grabbing assembly can automatically adapt to the diameter of the outermost metal bellows to grab, support and limit it, and then the inner metal bellows can be supported and limited by the clamping assembly and the supporting assembly, thereby realizing the simultaneous transportation of the nested metal bellows, thereby improving the transportation efficiency of the metal bellows.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe fitting transportation, and specifically to a metal bellows conveying device. Background Art

[0002] A metal bellows is a pipe with a wavy appearance, usually made of metal materials such as carbon steel, stainless steel, and aluminum. The metal bellows has good pressure resistance. The metal bellows is generally used to compensate for the thermal expansion and contraction of pipelines, absorb vibrations and displacements, protect the pipeline system, and the metal bellows also has a certain ability to bend and deform.

[0003] When transporting the manufactured metal bellows in a factory, the method of hoisting by a crane is usually adopted. However, in order to reduce the storage area of the metal bellows, metal bellows with different diameters are generally nested together and placed in the factory. When the crane hoists the metal bellows, only one bellows can be hoisted at a time. Therefore, the nested metal bellows need to be separated and hoisted one by one, which increases the transportation time and reduces the hoisting efficiency of the metal bellows; when hoisting the innermost metal bellows and moving the nested metal bellows on the outside together by the innermost metal bellows, during the movement, the metal bellows will rub against each other due to shaking, which is likely to damage the inner and outer walls of the metal bellows and reduce the quality of the metal bellows. Summary of the Invention

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a metal bellows conveying device, including a lifting plate, a lifting lug is fixedly installed on the upper part of the lifting plate, a centering mechanism for centering and grasping the outermost bellows is arranged on the lower side of the middle part of the lifting plate, and clamping mechanisms for centering and clamping the inner bellows are jointly arranged on the lower parts of the left and right sides of the lifting plate.

[0005] The centering mechanism includes a U-shaped frame that slides up and down on the lower side of the middle part of the lifting plate. A abutting plate slides up and down on the lower side of the horizontal section of the U-shaped frame. On the side close to the middle part of the lifting plate of the two vertical sections of the U-shaped frame, position plates slide up and down. The abutting plate is connected to the position plate through a centering component. A moving frame slides back and forth on the position plate, and a grasping component for grasping the outermost bellows is arranged on the moving frame. A driving component for driving the moving frame and the abutting plate to move synchronously is arranged on the upper part of the U-shaped frame.

[0006] The clamping mechanism includes vertical pulling plates symmetrically arranged on the lower side of the lifting plate from left to right. The vertical pulling plates are slidably connected to the lifting plate in the left-right direction. L-shaped members are symmetrically arranged at the front and rear of the middle part of the vertical pulling plates and are slidably connected to the vertical pulling plates in the up-down direction. The L-shaped members are slidably connected to the position plates at the corresponding positions in the left-right direction. On one side of the lower part of the vertical pulling plate close to the middle part of the lifting plate, an insertion sleeve is fixedly installed. A support component for internally supporting the innermost bellows is arranged on the insertion sleeve. A clamping component for clamping the middle bellows is arranged on the insertion sleeve. A moving component for separating the inner bellows is arranged on the vertical pulling plate.

[0007] As a preferred technical solution of the present invention, the centering component includes a synchronous rotating plate rotatably arranged on the side of the position plate far from the middle part of the lifting plate. Hinged plates are hinged at both ends of the synchronous rotating plate. The end of the upper hinged plate far from the position plate is hinged to the abutting plate. The end of the lower hinged plate far from the position plate is hinged to the lower part of the vertical section of the U-shaped frame. The position plate is located at the central position between the lower side of the abutting plate and the lower side of the vertical section of the U-shaped frame.

[0008] As a preferred technical solution of the present invention, the grasping component includes clamping plates symmetrically hinged up and down on the side of the moving frame close to the middle part of the lifting plate through a torsion spring rod. A trigger plate is slidably arranged in the front and rear directions on the side of the moving frame close to the middle part of the lifting plate. A reset push plate is fixedly installed on the side of the trigger plate far from the middle part of the lifting plate. A reset tension spring is arranged between the reset push plate and the moving frame. A locking part for locking the clamping plates is arranged on the moving frame.

[0009] As a preferred technical solution of the present invention, the locking part includes two abutting members slidably arranged on the left and right sides of the moving frame respectively. A spiral spring is arranged between the abutting members and the moving frame. The upper end of the left abutting member abuts against the lower side of the upper clamping plate. The lower end of the right abutting member abuts against the upper side of the lower clamping plate. Tooth plates are slidably arranged on the left and right sides of the moving frame respectively. A driving spring is arranged between the tooth plates and the moving frame. The two tooth plates are arranged symmetrically about the left-right center. Through grooves are formed on the tooth plates. Oblique surface push rods are fixedly installed on both the left and right sides of the reset push plate.

[0010] As a preferred technical solution of the present invention, the driving component includes driven racks slidably arranged on the upper side of the horizontal section of the U-shaped frame. The two driven racks are arranged symmetrically about the left-right center. A follower plate is fixedly installed at the lower part of the end of the driven rack far from the middle part of the lifting plate. The follower plate is slidably connected to the moving frame at the corresponding position. A driving gear that meshes with the driven racks on both sides at the same time is rotatably arranged at the central position of the horizontal section of the U-shaped frame. A threaded rod is rotatably installed on the horizontal section of the abutting plate. The threaded rod is threadedly connected to the driving gear. An execution motor is fixedly installed on the upper side of the horizontal section of the U-shaped frame. The output shaft of the execution motor is connected to the driving gear through a belt.

[0011] As an optimal technical solution of the present invention, the support assembly includes a movable push ring slidingly arranged on the insertion sleeve, and several groups of plate parts two are arranged at equal intervals along the circumference of the outer side of the movable push ring, each group of plate parts two is composed of two No. 1 connecting plates parallel to each other and hinged on the movable push ring, the two parallel No. 1 connecting plates are arranged left and right, and several groups of plate parts three are arranged at equal intervals along the circumference of one end of the insertion sleeve near the middle of the lifting plate; each group of plate parts three is composed of two No. 2 connecting plates parallel to each other and hinged on the insertion sleeve, the two parallel No. 2 connecting plates are arranged left and right, and a group of No. 1 connecting plates corresponding to the left and right and the No. 2 connecting plates are hinged to the end away from the insertion sleeve together with a support block, and a clamping portion for clamping the innermost metal bellows is provided inside the support block, and an active screw threadedly connected to the movable push ring is rotatably provided inside the insertion sleeve, and a power motor is fixedly installed on the vertical pulling plate, and the output shaft of the power motor is fixedly connected to the active screw.

[0012] As a preferred technical solution of the present invention, the clamping part includes sliding blocks arranged on the support block at equal intervals along the left and right directions. The sliding blocks are slidably connected to the support block along the radial direction of the insertion sleeve, and a pushing spring is arranged between the sliding block and the inner wall of the support block.

[0013] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0014] As a preferred technical solution of the present invention, the pulling part includes an insertion block arranged at equal intervals along the left and right directions inside the abutment rod, the insertion block is elastically slidably connected to the abutment rod along the radial direction of the insertion sleeve, an inclined surface is provided on one side of the insertion block, a pressing block is provided on the side of the abutment rod close to the middle of the lifting plate for radial sliding, a limiting plate is provided inside the abutment rod for left and right sliding, a triangular plate is fixedly connected on the limiting plate at equal intervals along the left and right directions, a push spring is provided between the limiting plate and the inner wall of the abutment rod, and an inclined surface is provided on one end of the limiting plate close to the middle of the lifting plate.

[0015] As a preferred technical solution of the present invention, the moving component includes a bidirectional hydraulic cylinder fixedly installed on the upper side of the front position plate, the two telescopic sections of the bidirectional hydraulic cylinder are respectively fixedly connected to the L-shaped parts at the corresponding positions, and a blocking block is fixedly installed on the side of the lower part of the vertical pull plate away from the middle of the lifting plate.

[0016] The beneficial effects of the present invention are: 1. The present invention uses the supporting plate to rest on the upper side of the outermost metal bellows, so that the supporting plate can automatically move the grabbing assembly to the middle position of the outermost metal bellows through the centering assembly and the driving assembly, so that the grabbing assembly can automatically adapt to the diameter of the outermost metal bellows to grab, support and limit it, and then the inner metal bellows can be supported and limited by the clamping assembly and the supporting assembly, thereby realizing the simultaneous transportation of the nested metal bellows, thereby improving the transportation efficiency of the metal bellows.

[0017] 2. When the nested metal bellows are transported, the present invention arranges the nested metal bellows coaxially by moving the components, thereby avoiding friction between metal bellows of different diameters during transportation, thereby avoiding damage to the inner and outer walls of the metal bellows and ensuring the quality of the metal bellows.

[0018] 3. In the process of transporting metal bellows at different internal and external positions, the present invention can support, hold and limit the metal bellows through the grabbing assembly, the supporting assembly and the clamping assembly, thereby achieving stable transportation of the metal bellows, preventing the metal bellows from being offset, shaken and deformed, and further ensuring the quality of the metal bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] Figure 1 It is a schematic structural diagram of the present invention when transporting nested metal bellows.

[0021] Figure 2 It is a structural schematic diagram of the lifting plate, centering mechanism, vertical pulling plate, L-shaped member and moving assembly in the present invention.

[0022] Figure 3 It is a structural diagram of the convex frame, the abutting plate, the driven rack, the driving gear, the threaded rod and the actuator motor in the present invention.

[0023] Figure 4 It is a structural diagram of the movable frame, trigger plate, grabbing plate, reset push plate, L-shaped member and bidirectional hydraulic cylinder in the present invention.

[0024] Figure 5 It is a partial cross-sectional view of the movable frame and the grabbing assembly in the present invention.

[0025] Figure 6 It is a cross-sectional view of the trigger plate, the reset push plate and the locking portion in the present invention.

[0026] Figure 7 It is a schematic diagram of the partial structure of the clamping mechanism after the bidirectional hydraulic cylinder is removed in the present invention.

[0027] Figure 8 It is a partial cross-sectional view of the vertical pull plate, the insert sleeve, the movable push ring, the active screw and the power motor in the present invention.

[0028] Figure 9 It is a cross-sectional view of the support block and the clamping portion in the present invention.

[0029] Figure 10 It is a partial cross-sectional view of the abutting rod and the pulling portion in the present invention.

[0030] Figure 11 It is a partial structural diagram of the insert block, the limiting plate and the triangular plate in the present invention.

[0031] Figure 12 It is a structural diagram of the insertion block in the present invention.

[0032] In the figure: 1. lifting plate; 2. centering mechanism; 3. clamping mechanism; 21. shaped frame; 22. abutting plate; 23. positioning plate; 24. centering assembly; 25. moving frame; 26. grabbing assembly; 27. driving assembly; 31. vertical pulling plate; 32. L-shaped member; 33. inserting sleeve; 34. supporting assembly; 35. clamping assembly; 36. moving assembly; 241. synchronous rotating plate; 242. hinged plate; 261. grabbing plate; 262. triggering plate; 263. reset push plate; 264. locking part; 271. driven rack; 272. follower plate; 273. driving gear; 274. threaded rod; 275. actuator motor; 341. Moving push ring; 342. Connecting plate No. 1; 343. Connecting plate No. 2; 344. Support block; 345. Clamping part; 346. Active screw; 347. Power motor; 351. Sliding ring; 352. Connecting plate No. 3; 353. Push-pull rod; 354. Abutting rod; 355. Pulling part; 356. Active hydraulic cylinder; 357. Moving part; 361. Bidirectional hydraulic cylinder; 362. Stop block; 2641. Abutting part; 2642. Tooth plate; 2643. Inclined push rod; 3451. Sliding block; 3551. Inserting block; 3552. Pressing block; 3553. Limiting plate; 3554. Triangular plate. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in detail. The embodiments described below are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in the art or in the product specifications shall be followed.

[0034] See Figure 1 、 Figure 2 and Figure 7 A metal corrugated pipe conveying device includes a lifting plate 1, a centering mechanism 2 for centering and grabbing the outermost corrugated pipe is provided on the lower side of the middle of the lifting plate 1, and a clamping mechanism 3 for centering and clamping the inner corrugated pipe is provided on the lower parts of the left and right sides of the lifting plate 1.

[0035] When it is necessary to transport the nested metal bellows at the same time, first, the centering mechanism 2 is used to cover the outside of the outermost metal bellows, and then the centering mechanism 2 is used to center and grab the outermost metal bellows again, and then the clamping mechanism 3 is used to clamp the inner metal bellows, and then the lifting plate 1 is lifted by the crane, so that the lifting plate 1 drives the inner metal bellows to move to the coaxial position of the outermost metal bellows through the clamping mechanism 3, so that all the metal bellows can maintain a coaxial relatively static state when moving, and then all the metal bellows can be transported synchronously while avoiding friction between the metal bellows.

[0036] See Figure 1 、 Figure 2 and Figure 3 The centering mechanism 2 includes a U-shaped frame 21 that slides up and down on the lower side of the middle part of the lifting plate 1. A support plate 22 is provided on the lower side of the horizontal section of the U-shaped frame 21 for sliding up and down. The two vertical sections of the U-shaped frame 21 are both provided with a position plate 23 that slides up and down on one side close to the middle part of the lifting plate 1. A movable frame 25 is provided on the position plate 23 for sliding back and forth.

[0037] When the nested metal corrugated pipes need to be transported, the lifting plate 1 is lifted by a crane to the top of the outermost metal corrugated pipe, and then the lifting plate 1 is lowered to drive the two vertical sections of the U-shaped frame 21 to be located on the front and rear sides of the outermost metal corrugated pipe, while the lower side surfaces of the vertical sections of the U-shaped frame 21 are placed against the ground.

[0038] Continue reading Figure 1 、 Figure 2 and Figure 3, the centering mechanism 2 further includes a driving component 27 disposed on the upper portion of the U-shaped frame 21 and used to drive the moving frame 25 and the abutting plate 22 to move synchronously. The driving component 27 includes a driven rack 271 slidably disposed on the upper side of the horizontal section of the U-shaped frame 21. The two driven racks 271 are symmetrically arranged about the left-right center. A follower plate 272 is fixedly installed at the lower portion of one end of the driven rack 271 away from the middle of the lifting plate 1. The follower plate 272 is slidably connected to the corresponding moving frame 25 in the up-and-down direction. A driving gear 273 that meshes with the driven racks 271 on both sides simultaneously is rotatably disposed at the center position of the horizontal section of the U-shaped frame 21. A threaded rod 274 is rotatably installed on the horizontal section of the abutting plate 22. The threaded rod 274 is threadedly connected to the driving gear 273. An actuating motor 275 is fixedly installed on the upper side of the horizontal section of the U-shaped frame 21. The output shaft of the actuating motor 275 is connected to the driving gear 273 through a belt.

[0039] After placing the vertical section of the U-shaped frame 21 on the ground, start the actuating motor 275 to drive the driving gear 273 to rotate. The driving gear 273 drives the threaded rod 274 to move downward. While the threaded rod 274 drives the abutting plate 22 to move downward, the driving gear 273 drives the follower plates 272 on both sides to approach each other through the driven racks 271. The follower plates 272 drive the corresponding moving frames 25 to move synchronously in the front-rear direction, and the moving speed of the abutting plate 22 is equal to the moving speed of the moving frame 25, so that the abutting plate 22 and the moving frame 25 move synchronously toward the axial position of the outermost metal bellows.

[0040] Continue to refer to Figure 1 , Figure 2 and Figure 3 , the centering mechanism 2 further includes an alignment component 24 connecting the abutting plate 22 and the position plate 23. The alignment component 24 includes a synchronous rotating plate 241 rotatably disposed on one side of the position plate 23 away from the middle of the lifting plate 1. Hinge plates 242 are hinged at both ends of the synchronous rotating plate 241. One end of the upper hinge plate 242 away from the position plate 23 is hinged to the abutting plate 22. One end of the lower hinge plate 242 away from the position plate 23 is hinged to the lower portion of the vertical section of the U-shaped frame 21. The position plate 23 is located at the middle position between the lower side surface of the abutting plate 22 and the lower side surface of the vertical section of the U-shaped frame 21.

[0041] During the process of the abutting plate 22 moving downward, the abutting plate 22 pushes the synchronous rotating plate 241 to rotate through the upper hinge plate 242. The synchronous rotating plate 241 drives the position plate 23 to move downward synchronously. When the synchronous rotating plate 241 rotates, it pushes the U-shaped frame 21 through the lower hinge plate 242. Since the lower side surface of the U-shaped frame 21 abuts against the ground, the U-shaped frame 21 cannot move. Furthermore, the synchronous rotating plate 241 drives the position plate 23 to be located at the middle position between the lower side surface of the abutting plate 22 and the lower side surface of the U-shaped frame 21.

[0042] When the lower side surface of the abutment plate 22 abuts against the upper side of the outermost metal bellows, the movable frames 25 on the front and rear sides synchronously abut against the front and rear side surfaces of the outermost metal bellows. At the same time, the abutment plate 22 drives the position plate 23 to move to the same horizontal plane as the axis of the outermost metal bellows, so that the position plate 23 drives the movable frame 25 to move downward synchronously, thereby making the movable frames 25 on the front and rear sides respectively abut against the front and rear of the outermost metal bellows.

[0043] See Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The centering mechanism 2 also includes a grabbing assembly 26 arranged on the movable frame 25 and used to grab the outermost corrugated tube. The grabbing assembly 26 includes a grabbing clamping plate 261 symmetrically hinged to the side of the movable frame 25 near the middle of the lifting plate 1 through a torsion spring rod. A trigger plate 262 is provided on the side of the movable frame 25 near the middle of the lifting plate 1 for sliding back and forth. A reset push plate 263 is fixedly installed on the side of the trigger plate 262 away from the middle of the lifting plate 1. A reset tension spring is provided between the reset push plate 263 and the movable frame 25. A locking portion 264 is provided on the movable frame 25 for locking the grabbing clamping plate 261.

[0044] See Figure 4 、 Figure 5 and Figure 6 The locking portion 264 includes two abutting pieces 2641 which are respectively arranged on the left and right sides of the movable frame 25 for sliding up and down. A coil spring is provided between the abutting piece 2641 and the movable frame 25. The upper end of the abutting piece 2641 on the left side abuts against the lower side surface of the upper grabbing plate 261, and the lower end of the abutting piece 2641 on the right side abuts against the upper side surface of the lower grabbing plate 261. The left and right sides of the movable frame 25 are respectively provided with a tooth plate 2642 for sliding left and right. An active spring is provided between the tooth plate 2642 and the movable frame 25. The two tooth plates 2642 are arranged symmetrically with respect to the left and right centers. A through slot is provided on the tooth plate 2642. An inclined push rod 2643 is fixedly installed on both sides of the reset push plate 263.

[0045] The elastic force of the reset spring is greater than the elastic force of the torsion spring rod. In the initial state, the reset push plate 263 rests on the end of the grabbing plate 261 away from the lifting plate 1 to limit the rotation of the grabbing plate 261, so that the two grabbing plates 261 on the same movable frame 25 form an eight-shaped structure with the large-diameter end facing the middle of the lifting plate 1. The torsion spring rod is twisted, and at this time, the tooth plate 2642 does not contact the abutment 2641 due to the cooperation limit of the inclined push rod 2643 and the through groove.

[0046] When the movable frame 25 moves in the direction close to the outermost metal bellows, the movable frame 25 drives the grabbing plate 261 and the trigger plate 262 thereon to move synchronously. When the movable frame 25 is pressed against the outermost metal bellows, the reaction force of the outermost metal bellows on the trigger plate 262 causes the trigger plate 262 to move in the direction away from the metal bellows, so that the trigger plate 262 pushes the reset push plate 263 and the inclined push rod 2643 to move synchronously, and the inclined push rod 2643 moves out of the through groove. With the movement of the reset push plate 263, the upper grabbing plate 261 rotates downward under the action of the corresponding torsion spring rod until it presses against the outer wall of the outermost metal bellows, and the lower grabbing plate 261 rotates upward under the action of the corresponding torsion spring rod until it presses against the outer wall of the outermost metal bellows. The abutting piece 2641 moves under the push of the coil spring rebound force and always contacts the side of the grabbing plate 261 at the corresponding position.

[0047] When the reset push plate 263 moves in the direction away from the metal bellows, the reset push plate 263 drives the inclined push rod 2643 on it to move synchronously to disengage from the tooth plate 2642, so that the tooth plate 2642 moves to contact with the corresponding position of the abutment 2641 under the push of the active spring, and the tooth plate 2642 limits and locks the blocking abutment 2641 through the tooth groove thereon, so that the abutment 2641 is completely pressed against the grasping plate 261 to prevent the grasping plate 261 from reversing, so that the grasping plate 261 can fit tightly on the outermost metal bellows, thereby supporting and limiting the outermost metal bellows.

[0048] See Figure 1 、 Figure 2 、 Figure 7 and Figure 5 The clamping mechanism 3 includes a vertical pull plate 31 symmetrically arranged on the lower side of the lifting plate 1. The vertical pull plate 31 is slidably connected to the lifting plate 1 along the left and right directions. An L-shaped piece 32 symmetrically arranged in the front and back of the middle part of the vertical pull plate 31 is connected to it for sliding up and down. The L-shaped piece 32 is slidably connected to the position plate 23 at the corresponding position left and right. An insertion sleeve 33 is fixedly installed on one side of the lower part of the vertical pull plate 31 near the middle of the lifting plate 1.

[0049] When the lower side of the U-shaped frame 21 is placed on the ground, the lifting plate 1 continues to be moved downward, so that the lifting plate 1 drives the insertion sleeve 33 to move to the position corresponding to the innermost metal bellows through the vertical pull plate 31. When the position plate 23 moves to the middle position of the outermost metal bellows, the position plate 23 drives the L-shaped part 32 to move synchronously to the middle position of the outermost metal bellows.

[0050] See Figure 1 、 Figure 7 and Figure 10The clamping mechanism 3 also includes a clamping assembly 35 for clamping the middle corrugated tube arranged on the insertion sleeve 33. The clamping assembly 35 includes a sliding ring 351 that is slidingly arranged on the insertion sleeve 33 left and right. The insertion sleeve 33 is away from the middle of the lifting plate 1. Several groups of plate members are arranged at equal intervals along its circumference. Each group of plate members is composed of two No. 3 connecting plates 352 that are parallel to each other and hinged to the insertion sleeve 33. The two parallel No. 3 connecting plates 352 are arranged left and right. Push-pull rods 353 corresponding to each group of No. 3 connecting plates 352 are hinged at equal intervals along the circumference of the sliding ring 351. The push-pull rod 353 is hinged to the middle of the No. 3 connecting plate 352 at the corresponding position at one end away from the sliding ring 351.

[0051] See Figure 7 and Figure 10 The two No. 3 connecting plates 352 in the same group are hinged with a moving part 357 at one end away from the insertion sleeve 33. A supporting rod 354 is set inside the moving part 357 for sliding left and right. An active tension spring is set between the supporting rod 354 and the moving part 357. An active hydraulic cylinder 356 is fixedly installed on the vertical pull plate 31, and the telescopic section of the active hydraulic cylinder 356 is fixedly connected to the sliding ring 351.

[0052] When the insertion sleeve 33 corresponds to the position of the innermost metal bellows, the insertion sleeve 33 drives the sliding ring 351 to synchronously correspond to the position of the innermost metal bellows, and then extends the telescopic section of the active hydraulic cylinder 356 to drive the sliding ring 351 to move toward the direction close to the middle of the lifting plate 1. The sliding ring 351 pulls the No. 3 connecting plate 352 to swing through the push-pull rod 353, so that the No. 3 connecting plate 352 swings away from one end of the insertion sleeve 33 toward the direction close to the middle of the lifting plate 1, so that the No. 3 connecting plate 352 drives the abutment rod 354 to gradually approach the innermost metal bellows through the moving part 357. When the uppermost abutment rod 354 moves to the outer wall close to the innermost metal bellows, the telescopic section of the active hydraulic cylinder 356 stops extending.

[0053] It should be noted that each set of third connecting plates 352 and the moving member 357 and the insert sleeve 33 thereon form a parallelogram structure, so that the moving member 357 is always parallel to the insert sleeve 33 when swinging.

[0054] See Figure 1 、 Figure 2 、 Figure 4 and Figure 7 The clamping mechanism 3 also includes a moving component 36 arranged on the vertical pulling plate 31 for separating the inner corrugated tube. The moving component 36 includes a two-way hydraulic cylinder 361 fixedly installed on the upper side of the front position plate 23. The two telescopic sections of the two-way hydraulic cylinder 361 are respectively fixedly connected to the L-shaped parts 32 at the corresponding positions.

[0055] When the uppermost abutment rod 354 moves to the outer wall close to the innermost metal bellows, the two telescopic sections of the two-way hydraulic cylinder 361 are simultaneously contracted, so that the two-way hydraulic cylinder 361 drives the vertical pull plate 31 to move toward the direction close to the metal bellows through the L-shaped member 32, thereby causing the vertical pull plate 31 to drive the insertion sleeve 33 to extend into the interior of the innermost metal bellows. At this time, the vertical pull plate 31 drives the uppermost abutment rod 354 to move to the upper side of the innermost metal bellows.

[0056] It should be noted that when the diameters of the innermost metal bellows and the middle metal bellows are similar, the distance between the lower side of the innermost metal bellows and the lower side of the middle metal bellows is small, so that the lower abutment rod 354 cannot extend between the innermost metal bellows and the middle metal bellows, so that the end of the lower abutment rod 354 abuts against the right side surface of the middle metal bellows, and then the reaction force of the middle metal bellows on the lower abutment rod 354 pushes the lower abutment rod 354 to the right, and stretches the active tension spring at the corresponding position.

[0057] See Figure 1 、 Figure 7 、 Figure 8 and Figure 9 The clamping mechanism 3 also includes a support assembly 34 arranged on the insertion sleeve 33 and used to provide internal support for the innermost corrugated tube. The support assembly 34 includes a movable push ring 341 sliding left and right on the insertion sleeve 33. The movable push ring 341 is located on the side of the sliding ring 351 close to the middle of the lifting plate 1. A plurality of groups of plate parts two are arranged at equal intervals along the circumference of the outer side of the movable push ring 341. Each group of plate parts two is composed of two No. 1 connecting plates 342 that are parallel to each other and hinged to the movable push ring 341. The two parallel No. 1 connecting plates 342 are arranged left and right. A plurality of groups of plate parts three are arranged at equal intervals along the circumference of one end of the insertion sleeve 33 close to the middle of the lifting plate 1.

[0058] See Figure 7 、 Figure 8 and Figure 9 Each group of three plates consists of two parallel No. 2 connecting plates 343 hinged on the insertion sleeve 33. The two parallel No. 2 connecting plates 343 are arranged left and right. A corresponding group of No. 1 connecting plates 342 and No. 2 connecting plates 343 on the left and right are hingedly connected to a support block 344 at one end away from the insertion sleeve 33. An active screw 346 threadedly connected to the movable push ring 341 is provided for rotation inside the insertion sleeve 33. A power motor 347 is fixedly installed on the vertical pull plate 31, and the output shaft of the power motor 347 is fixedly connected to the active screw 346.

[0059] When the insertion sleeve 33 is inserted into the interior of the innermost metal bellows, the power motor 347 is started to drive the active screw 346 to rotate, and the active screw 346 drives the movable push ring 341 to move toward the middle of the lifting plate 1, so that the movable push ring 341 pushes the support block 344 through the No. 1 connecting plate 342 and the No. 2 connecting plate 343 to move away from the insertion sleeve 33, so that the support block 344 rests on the inner wall of the innermost metal bellows, and then the support block 344 internally supports the innermost metal bellows, and at the same time, the innermost metal bellows is arranged coaxially with the insertion sleeve 33.

[0060] Continue reading Figure 7 、 Figure 8 and Figure 9 The support assembly 34 also includes a clamping portion 345 arranged inside the support block 344 and used to clamp the innermost metal bellows. The clamping portion 345 includes sliding blocks 3451 arranged on the support block 344 at equal intervals along the left and right directions. The sliding blocks 3451 are slidably connected to the support block 344 along the radial direction of the insertion sleeve 33, and a pushing spring is provided between the sliding block 3451 and the inner wall of the support block 344.

[0061] When the support block 344 rests against the inner wall of the innermost metal bellows, the support block 344 drives the sliding block 3451 to rest against the inner wall of the innermost metal bellows. During this period, the sliding block 3451 that does not correspond to the groove position on the inner wall of the innermost metal bellows is pushed by the innermost metal bellows to be retracted inside the support block 344. At the same time, the sliding block 3451 that corresponds to the groove position on the inner wall of the innermost metal bellows is inserted into the groove, thereby allowing the sliding block 3451 to limit and internally support the left and right sides of the innermost metal bellows.

[0062] After the support block 344 provides internal support for the innermost metal bellows, the lifting plate 1 is pulled upward by the crane, so that the lifting plate 1 drives the insertion sleeve 33 to move upward synchronously through the vertical pull plate 31, and the insertion sleeve 33 drives the innermost metal bellows to move upward synchronously through the support block 344, thereby increasing the distance between the innermost metal bellows and the middle metal bellows. At the same time, the insertion sleeve 33 drives the abutment rod 354 to move upward synchronously. When the end of the lower abutment rod 354 corresponds to between the outer wall of the innermost metal bellows and the inner wall of the middle metal bellows, the rebound force of the active tension spring drives the lower abutment rod 354 to move to the outside of the innermost metal bellows.

[0063] When the lower abutment rod 354 moves to the outside of the innermost metal bellows, the telescopic section of the contracting active hydraulic cylinder 356 drives the abutment rod 354 to swing away from the insertion sleeve 33, so that the abutment rod 354 abuts against the inner wall of the middle metal bellows. As a result, the push of the abutment rod 354 makes the middle metal bellows and the insertion sleeve 33 coaxially arranged, and the middle metal bellows and the innermost metal bellows coaxially arranged.

[0064] See Figure 7 、 Figure 10 、 Figure 11 and Figure 12 The cam 352 is pressed against the top of the support rod 354 to push the cam 352 in the upward direction to push the cam 354 back against the support rod 354.

[0065] In the initial state, the pushing spring pushes the limit plate 3553 toward the middle of the lifting plate 1, so that the limit plate 3553 drives the oblique edge of the triangular plate 3554 to contact the oblique surface of the insertion block 3551, thereby causing the limit plate 3553 to pull the insertion block 3551 to the inside of the abutment rod 354. At the same time, the limit plate 3553 pushes the pressing block 3552 in the direction away from the abutment rod 354 through its inclined surface close to one end of the middle of the lifting plate 1.

[0066] When the abutting rod 354 moves towards the inner wall of the middle metal bellows, the moving member 357 synchronously drives the abutting rod 354 to move away from the metal bellows. The abutting rod 354 drives the insertion block 3551 and the pressing block 3552 thereon to move synchronously. When the abutting rod 354 abuts tightly against the inner wall of the middle metal bellows, the inner wall of the middle metal bellows pushes the pressing block 3552 into the interior of the abutting rod 354 through the reaction force on the pressing block 3552, causing the pressing block 3552 to push the limiting plate 3553 to move away from the middle of the lifting plate 1, so that the limiting plate 3553 drives the triangular plate 3554 thereon to no longer block the inclined surface of the pressing block 3552. Furthermore, the insertion block 3551 corresponding to the groove on the inner wall of the middle metal bellows extends out of the abutting rod 354 under the push of the compression spring, and the left and right ends of the middle metal bellows are limited and internally supported by the insertion block 3551.

[0067] Refer to Figure 1 , Figure 2 and Figure 4 , the moving component 36 further includes a blocking block 362 fixedly installed on the lower part of the vertical pulling plate 31 on one side far from the middle of the lifting plate 1.

[0068] When the vertical pulling plate 31 moves upward, the vertical pulling plate 31 drives the blocking block 362 thereon to move upward synchronously. When the blocking block 362 abuts against the L-shaped member 32 at the corresponding position, the vertical pulling plate 31 drives the insertion sleeve 33 to move to the coaxial position of the outermost metal bellows, so that all the metal bellows are located at the coaxial position. Then, the vertical pulling plate 31 drives the clamping plate 261 to move upward synchronously through the L-shaped member 32, and the clamping plate 261 drives the outermost metal bellows to move synchronously, thereby moving all the metal bellows synchronously.

[0069] When the present invention transports the metal bellows, it further includes the following steps: First step, the worker hoists the lifting plate 1 to directly above the outermost metal bellows through a crane, and then lowers the lifting plate 1 to make the two vertical sections of the U-shaped frame 21 located on the front and rear sides of the outermost metal bellows, and at the same time makes the lower side of the vertical section of the U-shaped frame 21 abut against the ground.

[0070] Second step, start the actuating motor 275 to drive the lower side of the abutting plate 22 to abut against the upper side of the outermost metal bellows, and at the same time the moving frames 25 on the front and rear sides respectively abut against the front and rear of the outermost metal bellows, so that the moving frames 25 drive the clamping plates 261 to rotate to abut against the outer wall of the outermost metal bellows.

[0071] In the third step, continue to move the lifting plate 1 downward so that the lifting plate 1 drives the inserted sleeve 33 to move to the position corresponding to the innermost metal bellows through the vertical pulling plate 31. When the positioning plate 23 moves to the middle position of the outermost metal bellows, the positioning plate 23 drives the L-shaped part 32 to move synchronously to the middle position of the outermost metal bellows.

[0072] In the fourth step, the telescopic section of the active hydraulic cylinder 356 is extended to drive the uppermost abutment rod 354 to move to the outer wall of the innermost metal bellows, and at the same time, the two telescopic sections of the bidirectional hydraulic cylinder 361 are retracted to drive the insertion sleeve 33 to extend into the interior of the innermost metal bellows.

[0073] The fifth step is to start the power motor 347 to drive the support block 344 to rest against the inner wall of the innermost metal bellows, so that the support block 344 internally supports the innermost metal bellows, and at the same time makes the innermost metal bellows and the insertion sleeve 33 coaxially arranged.

[0074] In the sixth step, the support block 344 drives the sliding block 3451 to rest against the inner wall of the innermost metal bellows, so that the sliding block 3451 corresponding to the groove position on the inner wall of the innermost metal bellows is inserted into the interior thereof, thereby enabling the sliding block 3451 to limit and internally support the left and right ends of the innermost metal bellows.

[0075] In the seventh step, the worker pulls the lifting plate 1 upwards by means of a crane, so that the inserted sleeve 33 drives the innermost metal bellows to move upward synchronously, and contracts the telescopic section of the active hydraulic cylinder 356 to drive the abutment rod 354 against the inner wall of the middle metal bellows, thereby making the middle metal bellows and the innermost metal bellows coaxially arranged.

[0076] In the eighth step, the inner wall of the middle metal bellows pushes the pressing block 3552 to the inside of the abutment rod 354 through the reaction force on the pressing block 3552, so that the insertion block 3551 corresponding to the groove of the inner wall of the middle metal bellows extends into the inside under the push of the compression spring, and the left and right ends of the middle metal bellows are limited and internally supported by the insertion block 3551.

[0077] In the ninth step, the vertical pull plate 31 drives the blocking block 362 thereon to move upward until it abuts against the L-shaped member 32, so that all the metal bellows are located at a coaxial position, thereby making all the metal bellows move synchronously.

[0078] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, which are still covered by the scope of protection of the present invention.

Claims

1. A metal bellows conveying device, characterized in that: It comprises a lifting plate (1), a centering mechanism (2) for centering and grabbing the outermost corrugated pipe is provided on the lower side of the middle portion of the lifting plate (1), and a clamping mechanism (3) for centering and clamping the inner corrugated pipe is provided on the lower portions of the left and right sides of the lifting plate (1); The centering mechanism (2) includes a convex frame (21) that is slidably arranged on the lower side of the middle part of the lifting plate (1), a supporting plate (22) is slidably arranged on the lower side of the horizontal section of the convex frame (21), and a position plate (23) is slidably arranged on one side of the two vertical sections of the convex frame (21) close to the middle part of the lifting plate (1), the supporting plate (22) is connected to the position plate (23) through a centering component (24), a moving frame (25) is slidably arranged on the position plate (23), a grabbing component (26) for grabbing the outermost corrugated pipe is arranged on the moving frame (25), and a driving component (27) is arranged on the upper part of the convex frame (21) for driving the moving frame (25) and the supporting plate (22) to move synchronously; The clamping mechanism (3) includes a vertical pull plate (31) symmetrically arranged on the lower side of the lifting plate (1), the vertical pull plate (31) is slidably connected to the lifting plate (1) along the left and right directions, an L-shaped member (32) symmetrically arranged in the middle of the vertical pull plate (31) and connected thereto for sliding up and down, the L-shaped member (32) is slidably connected to the position plate (23) at the corresponding position, an insert sleeve (33) is fixedly installed on one side of the lower part of the vertical pull plate (31) close to the middle of the lifting plate (1), a support component (34) for internally supporting the innermost corrugated pipe is provided on the insert sleeve (33), a clamping component (35) for clamping the middle corrugated pipe is provided on the insert sleeve (33), and a moving component (36) for separating the inner corrugated pipes is provided on the vertical pull plate (31).

2. A metal bellows conveying device according to claim 1, characterized in that: The centering assembly (24) includes a synchronous rotating plate (241) rotatably arranged on one side of the position plate (23) away from the middle of the lifting plate (1), and hinge plates (242) are hinged at both ends of the synchronous rotating plate (241). The end of the upper hinge plate (242) away from the position plate (23) is hinged to the abutting plate (22), and the end of the lower hinge plate (242) away from the position plate (23) is hinged to the lower part of the vertical section of the shaped frame (21). The position plate (23) is located in the center between the lower side surface of the abutting plate (22) and the lower side surface of the vertical section of the shaped frame (21).

3. The metal bellows conveying device according to claim 1, characterized in that: The grabbing assembly (26) includes a grabbing plate (261) symmetrically hinged to the side of the mobile frame (25) near the middle of the lifting plate (1) through a torsion spring rod, a trigger plate (262) is provided on the side of the mobile frame (25) near the middle of the lifting plate (1) for sliding back and forth, a reset push plate (263) is fixedly installed on the side of the trigger plate (262 away from the middle of the lifting plate (1), a reset tension spring is provided between the reset push plate (263) and the mobile frame (25), and a locking portion (264) for locking the grabbing plate (261) is provided on the mobile frame (25).

4. A metal bellows conveying device according to claim 3, characterized in that: The locking portion (264) includes two abutting members (2641) respectively arranged on the left and right sides of the movable frame (25) for sliding up and down, a coil spring is arranged between the abutting members (2641) and the movable frame (25), the upper end of the abutting member (2641) on the left side abuts against the lower side of the upper gripping plate (261), and the lower end of the abutting member (2641) on the right side abuts against the upper side of the lower gripping plate (261), and the left and right sides of the movable frame (25) are respectively provided with a tooth plate (2642) for sliding left and right, an active spring is arranged between the tooth plate (2642) and the movable frame (25), the two tooth plates (2642) are arranged symmetrically with respect to the left and right centers, a through slot is provided on the tooth plate (2642), and an inclined push rod (2643) is fixedly installed on both sides of the reset push plate (263).

5. The metal bellows conveying device according to claim 1, characterized in that: The driving assembly (27) includes a driven rack (271) which is slidably arranged on the upper side of the horizontal section of the shaped frame (21). The two driven racks (271) are symmetrical with respect to the left and right centers. A follower plate (272) is fixedly installed at the lower part of one end of the driven rack (271) away from the middle of the lifting plate (1). The follower plate (272) is connected to the movable frame (25) at the corresponding position by sliding up and down. A driving gear (273) which is simultaneously engaged with the driven racks (271) on both sides is rotatably arranged at the center position of the horizontal section of the shaped frame (21). A threaded rod (274) is rotatably arranged on the horizontal section of the abutting plate (22). The threaded rod (274) is threadedly connected to the driving gear (273). An execution motor (275) is fixedly installed on the upper side of the horizontal section of the shaped frame (21). The output shaft of the execution motor (275) is connected to the driving gear (273) through a belt.

6. The metal bellows conveying device according to claim 1, characterized in that: The support assembly (34) includes a movable push ring (341) that is slidably arranged on the insertion sleeve (33) left and right, and a plurality of sets of plate members 2 are arranged at equal intervals along the circumference of the outer side of the movable push ring (341), and each set of plate members 2 is composed of two parallel No. 1 connecting plates (342) that are hinged to the movable push ring (341), and the two parallel No. 1 connecting plates (342) are arranged left and right, and a plurality of sets of plate members 3 are arranged at equal intervals along the circumference of one end of the insertion sleeve (33) close to the middle of the lifting plate (1); Each set of plate parts three is composed of two parallel No. 2 connecting plates (343) hinged on the insertion sleeve (33), and the two parallel No. 2 connecting plates (343) are arranged on the left and right. A set of No. 1 connecting plates (342) and No. 2 connecting plates (343) corresponding to the left and right are hinged together with a support block (344) at one end away from the insertion sleeve (33). A clamping portion (345) for clamping the innermost metal bellows is provided inside the support block (344). An active screw (346) threadedly connected to the movable push ring (341) is rotatably provided inside the insertion sleeve (33). A power motor (347) is fixedly installed on the vertical pull plate (31), and the output shaft of the power motor (347) is fixedly connected to the active screw (346).

7. A metal bellows conveying device according to claim 6, characterized in that: The clamping portion (345) includes sliding blocks (3451) arranged on the support block (344) at equal intervals along the left-right direction. The sliding blocks (3451) are slidably connected to the support block (344) along the radial direction of the insertion sleeve (33). A push spring is provided between the sliding block (3451) and the inner wall of the support block (344).

8. The metal bellows conveying device according to claim 1, characterized in that: The clamping assembly (35) includes a sliding ring (351) slidably arranged on the insertion sleeve (33) in a left-right direction, and a plurality of plate groups are arranged at equal intervals along the circumference of the insertion sleeve (33) on a side away from the middle of the lifting plate (1); Each set of plate members is composed of two parallel No. 3 connecting plates (352) hinged on the insert sleeve (33). The two parallel No. 3 connecting plates (352) are arranged left and right. The sliding ring (351) is hinged with push-pull rods (353) corresponding to each set of No. 3 connecting plates (352) at equal intervals along its circumference. The push-pull rods (353) are hinged at one end away from the sliding ring (351) and the middle part of the No. 3 connecting plate (352) at the corresponding position. The two No. 3 connecting plates (352) in the same group are hinged. 52) is hingedly connected to one end of the sleeve (33) away from the insertion sleeve (33), and a moving part (357) is hingedly connected. A supporting rod (354) is provided inside the moving part (357) for sliding left and right. An active tension spring is provided between the supporting rod (354) and the moving part (357). A pulling part (355) for pulling the corrugated tube is provided on the supporting rod (354). An active hydraulic cylinder (356) is fixedly installed on the vertical pull plate (31), and the telescopic section of the active hydraulic cylinder (356) is fixedly connected to the sliding ring (351).

9. The metal bellows conveying device according to claim 8, characterized in that: The pulling portion (355) includes an insertion block (3551) arranged at equal intervals along the left and right directions inside the abutting rod (354), the insertion block (3551) is elastically slidably connected to the abutting rod (354) along the radial direction of the insertion sleeve (33), and a slope is provided on one side of the insertion block (3551), and a pressing block (3552) is provided on the side of the abutting rod (354) close to the middle of the lifting plate (1) for sliding along its radial direction, and a limiting plate (3553) is provided inside the abutting rod (354) for sliding left and right, and a triangular plate (3554) is fixedly connected to the limiting plate (3553) at equal intervals along the left and right directions, and a push spring is provided between the limiting plate (3553) and the inner wall of the abutting rod (354), and an inclined surface is provided on one end of the limiting plate (3553) close to the middle of the lifting plate (1).

10. The metal bellows conveying device according to claim 1, characterized in that: The moving assembly (36) includes a bidirectional hydraulic cylinder (361) fixedly mounted on the upper side of the front position plate (23), the two telescopic sections of the bidirectional hydraulic cylinder (361) are respectively fixedly connected to the L-shaped members (32) at corresponding positions, and a blocking block (362) is fixedly mounted on one side of the lower part of the vertical pull plate (31) away from the middle part of the lifting plate (1).

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