An ultra-low temperature ball valve one-way turnover automatic fast mounting and tightening device

Abstract

The application discloses a kind of ultra-low temperature ball valve one-way turnover automatic fast installation and tightening equipment, relating to ultra-low temperature ball valve assembly technical field, including base and transposition component, the top surface middle part of base is placed with stand, and the top of stand is provided with oil cylinder, the output end of oil cylinder is placed with driving plate, transposition component is set to one side of stand, and transposition component includes pulley.The application is triggered by the lifting movement linkage of driving plate to work transposition component, after once tightening operation is completed, driving plate can automatically remove the product that has been tightened when rising back, and the new product that has been fed is moved to tightening station, so that tightening operation and artificial feeding process can be synchronized, eliminate equipment idle waiting time, simultaneously, the switching and resetting process are completely completed by mechanical structure sequentially linkage, without additional driving and control element, simplify equipment structure, reduce cost, while ensuring the coaxiality of ball valve assembly and operation continuity.

Description

Technical Field

[0001] This invention relates to the field of cryogenic ball valve assembly technology, specifically to a one-way automatic quick-assembly and tightening device for cryogenic ball valves. Background Technology

[0002] Cryogenic ball valves are specialized ball valves designed for cryogenic conditions at -100℃ and below. The valve body is mostly made of austenitic stainless steel and other materials with excellent low-temperature toughness. Combined with a long-neck valve cover, special low-temperature sealing packing and anti-cold bridge structure, it can effectively avoid material brittleness, seal shrinkage failure and loss of medium cold energy in low-temperature environments. During the assembly of the ball valve, after the valve cap is manually screwed into the valve body, it is necessary to use a torque wrench to tighten it.

[0003] For example, patent CN212192027U discloses a valve one-way rotary automatic quick-assembly tightening machine. This patent uses a snap-fit ​​component fixed to one end of the valve, an axial drive assembly, and a circumferential drive assembly. The axial drive assembly drives the tightening component to reciprocate towards or away from the snap-fit ​​component, and the circumferential drive assembly realizes the rotation of the tightening component to cooperate with the snap-fit ​​component to tighten the valve. It uses mechanical transmission to replace manual operation, which is more efficient and the product quality is more stable. However, in actual use, this type of equipment requires manual placement of the valve body into the snap-fit ​​component before starting the equipment for tightening. The valve body can only be unloaded and repositioned after the equipment stops working, which affects the assembly efficiency of large-volume products. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic quick-release tightening device for one-way rotation of cryogenic ball valves, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic quick-release tightening device for a cryogenic ball valve with one-way rotation, comprising a base and a shifting assembly. A support frame is mounted in the center of the top surface of the base, and a hydraulic cylinder is mounted on the top of the support frame. A drive plate is mounted on the output end of the hydraulic cylinder. The shifting assembly is located on one side of the support frame and includes a pulley. A pulley is rotatably connected to the center of one side of the drive plate, and a guide frame is sleeved on the outer side of the pulley. Limiting posts are symmetrically arranged on one side of the guide frame, and a connecting shaft is rotatably connected to the center of the guide frame. One end of the connecting shaft is fixedly connected to a limiting plate, and the connecting shaft... The other end is fixedly connected to a magnetic ball, and magnetic seats are provided on both sides of the magnetic ball. The lower end of the guide frame is fixedly connected to a swing arm, and a sliding column is placed at the lower end of the swing arm. A slotted plate is slidably connected to the outer side of the sliding column, and a slide block is fixedly connected to the lower end of the slotted plate. A guide frame is slidably connected inside the slide block, and a ball screw is threadedly connected to the middle of the slide block. A positioning groove is symmetrically opened on the top of the base, and a lower card seat is symmetrically arranged on the top of the slide block. A tightening component is provided on the top of the drive plate, and an orientation component is connected to the bottom of the drive plate. An adjustment component is provided on the top of the tightening component.

[0006] Furthermore, the swing arm is rotatably connected to the upright, and the upright is fixedly connected to the magnetic base.

[0007] Furthermore, the guide frame is fixedly connected to the base, and the base is engaged with a ball screw via a positioning groove.

[0008] Furthermore, the tightening assembly includes a fixing rod, which is fixedly connected to the upper bottom surface of the stand, and a guide groove is provided on the outer side of the fixing rod. A ball sleeve is slidably connected to the upper outer side of the fixing rod, and a support is rotatably connected to the upper outer side of the ball sleeve. A ball seat is slidably connected to the lower outer side of the ball sleeve, and a compression spring abuts against the top of the ball seat. A first gear sleeve is rotatably connected to the inside of one end of the drive plate, and a groove is provided on the top of the first gear sleeve. A second gear sleeve meshes with one side of the first gear sleeve, and a synchronizing rod is slidably connected inside the second gear sleeve. A buffer spring is sleeved on the lower outer side of the synchronizing rod, and an upper retainer is connected to the bottom of the buffer spring.

[0009] Furthermore, the lower outer side of the ball sleeve is prismatic, and the balls inside the ball sleeve match the guide groove.

[0010] Furthermore, the second gear sleeve is rotatably connected to the drive plate, and the drive plate is fixedly connected to the support.

[0011] Furthermore, the upper card holder is fixedly connected to the synchronizing rod, and the synchronizing rod is prismatic in shape.

[0012] Furthermore, the orientation component includes a torsion spring shaft, the bottom of the drive plate is fixedly connected to the torsion spring shaft, and a pawl is rotatably connected to the outside of the torsion spring shaft. One end of the pawl abuts against a ratchet, and the ratchet is fixedly connected to the second gear sleeve.

[0013] Furthermore, the adjusting assembly includes a screw, which is rotatably connected to the top of the support, and a drive frame is threadedly connected to the outer side of the middle part of the screw. A scale is provided on the top of the support, and guide grooves are symmetrically opened on both sides of the drive frame. Rollers are slidably connected inside the guide grooves. A vertical rod is fixedly connected to one end of the roller, and a lifting ring is placed at the bottom of the vertical rod. A ball ring is rotatably connected to the bottom of the lifting ring, and the ball ring abuts against a compression spring.

[0014] Furthermore, the drive frame is U-shaped and is slidably connected to the support, and the support is slidably connected to the vertical rod.

[0015] This invention provides an automatic quick-release tightening device for one-way turnover of cryogenic ball valves, which has the following beneficial effects: 1. This invention triggers the switching component to work through the lifting and lowering motion of the drive plate. After a tightening operation is completed, the drive plate can automatically remove the tightened product when it rises and move the new product that has been loaded to the tightening station. This allows the tightening operation and the manual loading process to be carried out simultaneously, eliminating the equipment's idle waiting time. At the same time, the switching and resetting process is completed by the mechanical structure in sequence without the need for additional drive and control components, which simplifies the equipment structure, reduces costs, and ensures the coaxiality and continuity of the ball valve assembly.

[0016] 2. This invention converts the linear motion of the drive plate into rotational motion via a spiral guide groove, thereby driving the upper clasp to tighten the cap. No independent rotational drive source is required throughout the process. After tightening, a ratchet and pawl mechanism is used to achieve one-way locking, effectively preventing the cap from loosening. At the same time, the mechanism is equipped with a torque overload protection function. When the tightening torque reaches the set value, the transmission can be automatically disengaged to avoid damage to the parts. This integrated design ensures the sealing and firmness of the assembly while realizing efficient, reliable, continuous, and automated tightening operations.

[0017] 3. This invention, through a screw adjustment mechanism, can intuitively and accurately change the preload of the compression spring, thereby setting and adjusting the tightening torque. With clear scale markings, the equipment can quickly adapt to the assembly torque requirements of ball valves of different specifications, and ensure the consistency and accuracy of adjustment. This design enables a single unit to meet the assembly needs of multiple models of cryogenic ball valves, improving the applicability and economy of the equipment. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall three-dimensional structure of an automatic quick-release tightening device for a one-way turnover of an ultra-low temperature ball valve according to the present invention; Figure 2 This is a rear view structural diagram of the guide frame of an automatic quick-release tightening device for a one-way turnover of an ultra-low temperature ball valve according to the present invention. Figure 3 This is a front view structural diagram of the guide frame of the automatic quick-assembly tightening device for one-way turnover of cryogenic ball valve according to the present invention; Figure 4 This is a schematic diagram of the tightening component structure of an automatic quick-release tightening device for a one-way turnover of an ultra-low temperature ball valve according to the present invention; Figure 5 This is a schematic diagram of the guide groove structure of an automatic quick-release tightening device for a one-way turnover of an ultra-low temperature ball valve according to the present invention; Figure 6 This is a schematic diagram of the adjustment component of an automatic quick-release tightening device for a one-way turnover of an ultra-low temperature ball valve according to the present invention. Figure 7 This is a bottom view of the directional component structure of an automatic quick-release tightening device for a one-way turnover of an ultra-low temperature ball valve according to the present invention.

[0019] In the diagram: 1. Base; 2. Stand; 3. Hydraulic cylinder; 4. Drive plate; 5. Positioning assembly; 501. Pulley; 502. Guide frame; 503. Limiting post; 504. Coupling; 505. Limiting plate; 506. Magnetic ball; 507. Magnetic base; 508. Swing arm; 509. Sliding column; 510. Slotted plate; 511. Sliding base; 512. Guide frame; 513. Ball screw; 514. Positioning groove; 6. Lower bracket; 7. Tightening assembly; 701. Fixing rod; 702. Guide groove; 703. Ball sleeve 704, Support; 705, Ball bearing seat; 706, Compression spring; 707, First gear sleeve; 708, Groove; 709, Second gear sleeve; 710, Synchronizing rod; 711, Buffer spring; 712, Upper bracket; 8, Orienting assembly; 801, Torsion spring shaft; 802, Pawl; 803, Ratchet; 9, Adjusting assembly; 901, Screw; 902, Drive frame; 903, Scale; 904, Guide groove; 905, Roller; 906, Vertical rod; 907, Lifting ring; 908, Ball bearing ring. Detailed Implementation

[0020] Please see Figures 1 to 3This invention provides a technical solution: an automatic quick-release tightening device for a cryogenic ball valve with one-way rotation, comprising a base 1 and a shifting component 5. A support frame 2 is mounted in the center of the top surface of the base 1, and a hydraulic cylinder 3 is mounted on the top of the support frame 2. A drive plate 4 is mounted on the output end of the hydraulic cylinder 3. The shifting component 5 is located on one side of the support frame 2 and includes a pulley 501. The pulley 501 is rotatably connected to the center of one side of the drive plate 4, and a guide frame 502 is sleeved on the outer side of the pulley 501. Limiting posts 503 are symmetrically arranged on one side of the guide frame 502, and a connecting shaft 504 is rotatably connected to the center of the guide frame 502. One end of the connecting shaft 504 is fixedly connected to a limiting plate 505, and the other end of the connecting shaft 504 is fixedly connected to a magnetic ball 506. Magnetic seats 507 are provided on both sides of the magnetic ball 506. The lower part of the guide frame 502... A swing arm 508 is fixedly connected to the end, and a sliding column 509 is installed at the lower end of the swing arm 508. The swing arm 508 is rotatably connected to the upright frame 2, and the upright frame 2 is fixedly connected to the magnetic base 507. A slotted plate 510 is slidably connected to the outer side of the sliding column 509, and a slide block 511 is fixedly connected to the lower end of the slotted plate 510. A guide frame 512 is slidably connected inside the slide block 511, and a ball screw 513 is threadedly connected to the middle of the slide block 511. A positioning groove 514 is symmetrically opened on the top of the base 1. The guide frame 512 is fixedly connected to the base 1, and the base 1 is engaged with the ball screw 513 through the positioning groove 514. A lower card seat 6 is symmetrically arranged on the top of the slide block 511. A tightening component 7 is provided on the top of the drive plate 4, and an orientation component 8 is connected to the bottom of the drive plate 4. An adjustment component 9 is provided on the top of the tightening component 7. The specific operation is as follows: During the process of the hydraulic cylinder 3 driving the drive plate 4 to move downwards to make the tightening assembly 7 work, the drive plate 4 will also simultaneously drive the pulley 501 to move downwards. Because the spring inside the ball screw 513 can push the end steel ball into the positioning groove 514, and the elastic force provided by the spring is greater than the magnetic attraction force between the magnetic ball 506 and the magnetic seat 507, the swing arm 508 will not rotate during the downward movement of the pulley 501. The pulley 501 will push the limit plate 505 to rotate downwards around the connecting shaft 504, avoiding the movement path of the pulley 501, ensuring that the drive plate 4 can smoothly drive the tightening assembly 7 to complete the tightening operation of the cryogenic ball valve product. During this process, the working... Personnel can simultaneously change and load the product to be processed in another set of lower clamps 6 on slide 511, carrying out the tightening and loading processes in parallel. This maximizes the use of equipment processing time, eliminates idle standby waste, and significantly increases the assembly output per unit time. After the tightening assembly 7 completes the tightening of the product, the hydraulic cylinder 3 drives the drive plate 4 to move upward and reset. At the same time, the drive pulley 501 moves to the lower opening of the guide frame 502. At this time, the magnetic suction seat 507 attracts the magnetic ball 506, causing the coupling shaft 504 to drive the limiting plate 505 to fit tightly against the limiting post 503. Then, when the pulley 501 moves upward to the bottom of the limiting plate 505, it will apply a rigid drive to the limiting plate 505. When the driving force exceeds the elastic force of the spring inside the ball screw 513, the limit plate 505 will drive the guide frame 502 and the swing arm 508 to rotate around the upper shaft of the swing arm 508. Then, through the sliding engagement of the sliding column 509 and the slotted plate 510, the slide block 511 will slide smoothly on the guide frame 512, removing the tightened product from under the tightening assembly 7. A new product loaded into the other lower slot 6 will be automatically transferred to the underside of the tightening assembly 7. After the slide block 511 moves, it will quickly engage with another set of positioning slots 514 through the ball screw 513, ensuring the coaxiality and assembly consistency of the ball valve tightening operation, thus enabling continuous operation of the equipment. The tightening operation significantly improves the overall processing efficiency. At the same time, during the rotation of the guide frame 502, the magnetic ball 506 will move closer to another magnetic seat 507. Under the action of magnetic attraction, the limiting plate 505 will be rotated in the opposite direction and reset through the connecting shaft 504. Therefore, during each subsequent lifting and lowering process, the drive plate 4 can drive the slide 511 to move back and forth again, so that the drive plate 4 can automatically adjust the position of the lower clamp 6 under the tightening component 7 each time it rises. This structure relies on pure mechanical timing linkage to complete the position switching and action reset, without the need to add an independent drive source such as a motor or electrical control system, which simplifies the overall structure of the equipment and reduces the purchase and use costs of the equipment.

[0021] Please see Figures 4 to 7The tightening assembly 7 includes a fixing rod 701. The fixing rod 701 is fixedly connected to the upper bottom surface of the support frame 2, and a guide groove 702 is provided on the outer side of the fixing rod 701. A ball sleeve 703 is slidably connected to the upper outer side of the fixing rod 701, and a support 704 is rotatably connected to the upper outer side of the ball sleeve 703. The lower outer side of the ball sleeve 703 is prismatic, and the balls inside the ball sleeve 703 match the guide groove 702. A ball seat 705 is slidably connected to the lower outer side of the ball sleeve 703, and a compression spring 706 abuts against the top of the ball seat 705. A first gear sleeve 707 is rotatably connected to one end of the drive plate 4, and a groove 708 is provided on the top of the first gear sleeve 707. The second gear sleeve 709 is engaged with the side, and the synchronizing rod 710 is slidably connected inside the second gear sleeve 709. The second gear sleeve 709 is rotatably connected to the drive plate 4, and the drive plate 4 is fixedly connected to the support 704. A buffer spring 711 is sleeved on the lower outer side of the synchronizing rod 710, and an upper card seat 712 is connected to the bottom of the buffer spring 711. The upper card seat 712 is fixedly connected to the synchronizing rod 710, and the synchronizing rod 710 is prismatic. The directional assembly 8 includes a torsion spring shaft 801. The torsion spring shaft 801 is fixedly connected to the bottom of the drive plate 4, and a pawl 802 is rotatably connected to the outer side of the torsion spring shaft 801. One end of the pawl 802 abuts against a ratchet 803, and the ratchet 803 is fixedly connected to the second gear sleeve 709. The specific operation is as follows: When the hydraulic cylinder 3 drives the drive plate 4 to move downward, it will fit the upper clamp 712 onto the outside of the product's cap. At the same time, it will drive the ball sleeve 703 to slide vertically along the upper vertical groove of the guide groove 702 on the outside of the fixed rod 701. Subsequently, the drive plate 4 continues to move downward, and the buffer spring 711 on the outside of the synchronizing rod 710 is compressed. The balls inside the ball sleeve 703 slide into the spiral groove section of the guide groove 702. Since the fixed rod 701 is fixed, the ball sleeve 703 can rotate under the spiral guidance of the guide groove 702. When the ball sleeve 703 rotates, it will drive the ball seat 705 to rotate synchronously. The compression spring 706 continuously presses the balls on the ball seat 705 tightly against the groove 708 of the first gear sleeve 707, forming a stable transmission engagement. This will drive the first gear sleeve 707 to rotate synchronously, and then drive the synchronizing rod 710 to rotate through the second gear sleeve 709, ultimately driving the upper clamp 712 to complete the rotation of the product. The tightening operation of the cap is achieved entirely through the displacement linkage of the drive plate 4, without the need for additional independent drive sources such as motors and electrical controls. After the tightening operation is completed, the hydraulic cylinder 3 drives the drive plate 4 to move upward and reset. The ball sleeve 703 rotates in the opposite direction under the guidance of the guide groove 702. During this process, the torsion spring shaft 801 drives the pawl 802 to rotate, so that it is tightly engaged with the tooth groove of the ratchet 803 on the second gear sleeve 709. The one-way locking structure of the pawl 802 and the ratchet 803 can restrict the reverse rotation of the first gear sleeve 707, prevent the cap from loosening and rebounding, and ensure the tightening sealing and assembly firmness of the cryogenic ball valve cap. At this time, the ball seat 705 is subjected to reverse torque, which will squeeze the compression spring 706 upward, so that the lower ball automatically disengages from the groove 708 of the first gear sleeve 707, quickly disconnecting the rotational transmission connection, thereby stably realizing the one-way rotation function of the lower seat 6 and ensuring the smooth continuous operation of the equipment.

[0022] Please see Figure 4 and Figure 6 The adjusting component 9 includes a screw 901, the top of the support 704 is rotatably connected to the screw 901, and the outer side of the middle part of the screw 901 is threadedly connected to the drive frame 902. The top of the support 704 is provided with a scale 903. The two sides of the drive frame 902 are symmetrically provided with guide grooves 904, and the inside of the guide grooves 904 is slidably connected to rollers 905. One end of the rollers 905 is fixedly connected to a vertical rod 906, and the bottom of the vertical rod 906 is provided with a lifting ring 907. The bottom of the lifting ring 907 is rotatably connected to a ball ring 908, and the ball ring 908 abuts against the compression spring 706. The drive frame 902 is U-shaped, and the drive frame 902 is slidably connected to the support 704, and the support 704 is slidably connected to the vertical rod 906. The specific operation is as follows: After the product cap tightening operation is completed, as the drive plate 4 continues to move downward, when the preload provided by the compression spring 706 is less than the tightening drive torque of the cap, the balls on the ball seat 705 will automatically disengage from the groove 708 of the first gear sleeve 707, and simultaneously press the compression spring 706 upward to achieve immediate disconnection of the transmission. Relying on the mechanical torque overload protection structure, it can effectively avoid the cap from stripping, cracking, or valve body damage due to excessive tightening torque, fully ensuring the assembly integrity and sealing performance of the cryogenic ball valve product. When it is necessary to adjust the tightening torque of the equipment according to the requirements, the screw 901 can be rotated to drive the drive frame 902 to move along the axial direction of the screw 901. During the displacement, the roller 905 slides synchronously in the guide groove 904, and then through the vertical rod 906, it is precisely controlled. The height of the lifting ring 907 is precisely adjusted to flexibly adjust the compression of the compression spring 706. The torque adjustment operation is simple and convenient. Therefore, by changing different lower brackets 6 and upper brackets 712, it can adapt to the tightening torque requirements of different specifications of cryogenic ball valve caps, greatly improving the equipment's versatility. At the same time, the drive frame 902 slides synchronously along the scale 903. The adjustment position can be observed intuitively and accurately with the help of the scale markings on the scale 903, ensuring the accuracy and consistency of torque adjustment and meeting the requirements of high-precision assembly. In addition, the ball ring 908 supports the lifting ring 907 and the compression spring 706, greatly reducing the sliding wear of the upper end of the compression spring 706, reducing component wear, extending the service life of the compression spring 706 and the lifting ring 907, and ensuring the long-term stable operation of the equipment.

[0023] In summary, this type of cryogenic ball valve one-way automatic quick-release tightening device is used as follows: First, the controller starts the hydraulic cylinder 3, which drives the drive plate 4 to move down. The drive plate 4 also drives the pulley 501 to move down simultaneously. Since the spring inside the ball screw 513 can push the end steel ball into the positioning groove 514, and the elastic force provided by the spring is greater than the magnetic attraction between the magnetic ball 506 and the magnetic seat 507, the swing arm 508 will not rotate during the downward movement of the pulley 501. The pulley 501 will push the limit plate 505 to rotate downward around the connecting shaft 504, avoiding the movement path of the pulley 501, ensuring that the drive plate 4 can smoothly drive the tightening assembly 7 to complete the tightening operation of the cryogenic ball valve product. During this process, the operator can simultaneously replace and load the product to be processed in another set of lower clamps 6 on the slide 511, so that the tightening operation and the loading process can be carried out in parallel, improving assembly efficiency. Secondly, when the drive plate 4 moves downward, it will fit the upper card holder 712 onto the outside of the product's cap, and at the same time drive the ball sleeve 703 to slide vertically along the upper vertical groove of the guide groove 702 on the outside of the fixed rod 701. Then, the drive plate 4 continues to move downward, and the buffer spring 711 on the outside of the synchronous rod 710 is compressed. The balls inside the ball sleeve 703 slide into the spiral groove section of the guide groove 702. Since the fixed rod 701 is fixed, the ball sleeve 703 can rotate under the spiral guidance of the guide groove 702. When the ball sleeve 703 rotates, it will drive the ball seat 705 to rotate synchronously. The compression spring 706 continuously presses the balls on the ball seat 705 tightly against the groove 7 of the first gear sleeve 707. Within 08, a stable transmission engagement is formed, which drives the first gear sleeve 707 to rotate synchronously. Then, the second gear sleeve 709 drives the synchronizing rod 710 to rotate, ultimately driving the upper card seat 712 to complete the tightening operation of the product cap. When the preload provided by the compression spring 706 is less than the tightening drive torque of the cap, the balls on the ball seat 705 will automatically disengage from the groove 708 of the first gear sleeve 707, and simultaneously press the compression spring 706 upward to achieve immediate disconnection of the transmission. Relying on the mechanical torque overload protection structure, it can effectively prevent the cap from stripping, cracking or damaging the valve body due to excessive tightening torque, fully ensuring the assembly integrity and sealing performance of the cryogenic ball valve product. Next, after the tightening operation is completed, the hydraulic cylinder 3 drives the drive plate 4 to move upward and reset. Under the guidance of the guide groove 702, the ball sleeve 703 rotates in the opposite direction. During this process, the torsion spring shaft 801 drives the pawl 802 to rotate, so that it is tightly engaged with the tooth groove of the ratchet 803 on the second gear sleeve 709. By using the one-way locking structure of the pawl 802 and the ratchet 803, the reverse rotation of the first gear sleeve 707 can be restricted, preventing the cap from loosening and rebounding, and ensuring the tightening sealing and assembly firmness of the cryogenic ball valve cap. At this time, the ball seat 705 is subjected to reverse torque, which will squeeze the compression spring 706 upward, so that the lower ball automatically disengages from the groove 708 of the first gear sleeve 707, quickly disconnecting the rotary transmission connection, thereby stably realizing the one-way rotation function of the lower seat 6 and ensuring the smooth continuous operation of the equipment. Then, the drive plate 4 drives the pulley 501 to move to the lower opening of the guide frame 502. At this time, the magnetic seat 507 attracts the magnetic ball 506, causing the connecting shaft 504 to drive the limiting plate 505 to fit tightly with the limiting post 503. When the pulley 501 moves up to the bottom of the limiting plate 505, it applies a rigid driving force to the limiting plate 505. When this driving force is greater than the elastic force of the spring inside the ball screw 513, the limiting plate 505 will drive the guide frame 502 and the swing arm 508 to rotate around the upper shaft of the swing arm 508. Then, through the sliding cooperation between the sliding post 509 and the slotted plate 510, the sliding seat 511 is driven to slide smoothly on the guide frame 512, removing the tightened product from under the tightening assembly 7 and moving the other lower card holder 6. The newly loaded product is automatically transferred to the underside of the tightening assembly 7. After the slide 511 moves, it quickly engages with another set of positioning slots 514 through the ball screw 513 to ensure the coaxiality and assembly consistency of the ball valve tightening operation. This allows the equipment to continuously perform tightening operations, significantly improving the overall processing efficiency. At the same time, during the rotation of the guide frame 502, the magnetic ball 506 will move closer to another magnetic seat 507. Under the action of magnetic attraction, the limit plate 505 will be driven to rotate in the opposite direction and reset through the connecting shaft 504. Therefore, during each subsequent lifting and lowering process, the drive plate 4 can drive the slide 511 to move back and forth again, so that the drive plate 4 can automatically adjust the working position of the lower seat 6 under the tightening assembly 7 each time it rises, improving the automation level of the equipment. Finally, when the tightening torque of the equipment needs to be adjusted according to requirements, the screw 901 can be rotated to drive the drive frame 902 to move along the axial direction of the screw 901. During the displacement, the roller 905 slides synchronously within the guide groove 904, and the height of the lifting ring 907 can be precisely adjusted by the vertical rod 906, thereby achieving flexible adjustment of the compression amount of the compression spring 706. The torque adjustment operation is simple and convenient. Therefore, by replacing different lower brackets 6 and upper brackets 712, it can adapt to the tightening torque requirements of different specifications of cryogenic ball valve caps, greatly improving the tightening torque. To enhance the universal adaptability of the equipment, the drive frame 902 slides synchronously along the scale 903. The scale markings on the scale 903 allow for intuitive and precise observation of the adjustment position, ensuring the accuracy and consistency of torque adjustment and meeting the requirements of high-precision assembly. In addition, the ball ring 908 supports the lifting ring 907 and the compression spring 706, significantly reducing the sliding wear on the upper end of the compression spring 706, reducing component wear, extending the service life of the compression spring 706 and the lifting ring 907, and ensuring the long-term stable operation of the equipment.

[0024] It should be noted that, in this document, 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.

[0025] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A one-way automatic quick-assembly tightening device for cryogenic ball valves, characterized in that, The system includes a base (1) and a shifting assembly (5). A stand (2) is mounted on the center of the top surface of the base (1), and a hydraulic cylinder (3) is mounted on the top of the stand (2). A drive plate (4) is mounted on the output end of the hydraulic cylinder (3). The shifting assembly (5) is located on one side of the stand (2), and the shifting assembly (5) includes a pulley (501). The pulley (501) is rotatably connected to the center of one side of the drive plate (4), and a guide frame (502) is sleeved on the outer side of the pulley (501). Limiting posts (503) are symmetrically arranged on one side of the guide frame (502), and a connecting shaft (504) is rotatably connected to the center of the guide frame (502). One end of the connecting shaft (504) is fixedly connected to a limiting plate (505), and the other end of the connecting shaft (504) is fixedly connected to a magnetic ball (506). A magnetic suction seat (507) is provided on both sides. A swing arm (508) is fixedly connected to the lower end of the guide frame (502), and a sliding column (509) is placed at the lower end of the swing arm (508). A slotted plate (510) is slidably connected to the outer side of the sliding column (509), and a slide seat (511) is fixedly connected to the lower end of the slotted plate (510). A guide frame (512) is slidably connected inside the slide seat (511), and a ball screw (513) is threadedly connected to the middle of the slide seat (511). A positioning groove (514) is symmetrically opened on the top of the base (1). A lower card seat (6) is symmetrically arranged on the top of the slide seat (511). A tightening component (7) is provided on the top of the drive plate (4), and an orientation component (8) is connected to the bottom of the drive plate (4). An adjustment component (9) is provided on the top of the tightening component (7).

2. The cryogenic ball valve one-way automatic quick-assembly tightening device according to claim 1, characterized in that, The swing arm (508) is rotatably connected to the upright (2), and the upright (2) is fixedly connected to the magnetic base (507).

3. The cryogenic ball valve one-way automatic quick-assembly tightening device according to claim 1, characterized in that, The guide frame (512) is fixedly connected to the base (1), and the base (1) is engaged with the ball screw (513) through the positioning groove (514).

4. The cryogenic ball valve one-way automatic quick-assembly tightening device according to claim 1, characterized in that, The tightening assembly (7) includes a fixing rod (701). The fixing rod (701) is fixedly connected to the upper bottom surface of the support frame (2), and a guide groove (702) is provided on the outer side of the fixing rod (701). A ball sleeve (703) is slidably connected to the upper outer side of the fixing rod (701), and a support (704) is rotatably connected to the upper outer side of the ball sleeve (703). A ball seat (705) is slidably connected to the lower outer side of the ball sleeve (703), and the top of the ball seat (705) abuts against a compression. Spring (706), the drive plate (4) is rotatably connected to a first gear sleeve (707) at one end, and the top of the first gear sleeve (707) is provided with a groove (708), a second gear sleeve (709) is engaged on one side of the first gear sleeve (707), and a synchronizing rod (710) is slidably connected inside the second gear sleeve (709). A buffer spring (711) is sleeved on the lower outer side of the synchronizing rod (710), and an upper card seat (712) is connected to the bottom of the buffer spring (711).

5. The cryogenic ball valve one-way automatic quick-assembly tightening device according to claim 4, characterized in that, The lower outer side of the ball sleeve (703) is prismatic, and the balls inside the ball sleeve (703) match the guide groove (702).

6. The cryogenic ball valve one-way automatic quick-assembly tightening device according to claim 4, characterized in that, The second gear sleeve (709) is rotatably connected to the drive plate (4), and the drive plate (4) is fixedly connected to the support (704).

7. The cryogenic ball valve one-way automatic quick-assembly tightening device according to claim 4, characterized in that, The upper card holder (712) is fixedly connected to the synchronizing rod (710), and the synchronizing rod (710) is prismatic.

8. The cryogenic ball valve one-way automatic quick-assembly tightening device according to claim 4, characterized in that, The orientation component (8) includes a torsion spring shaft (801), the bottom of the drive plate (4) is fixedly connected to the torsion spring shaft (801), and a pawl (802) is rotatably connected to the outside of the torsion spring shaft (801). One end of the pawl (802) abuts against a ratchet (803), and the ratchet (803) is fixedly connected to the second gear sleeve (709).

9. The cryogenic ball valve one-way automatic quick-assembly tightening device according to claim 8, characterized in that, The adjusting component (9) includes a screw (901), the top of the support (704) is rotatably connected to the screw (901), and the outer side of the middle part of the screw (901) is threadedly connected to the drive frame (902). The top of the support (704) is provided with a scale (903). The two sides of the drive frame (902) are symmetrically provided with guide grooves (904), and the inside of the guide grooves (904) is slidably connected to rollers (905). One end of the rollers (905) is fixedly connected to a vertical rod (906), and the bottom of the vertical rod (906) is provided with a lifting ring (907). The bottom of the lifting ring (907) is rotatably connected to a ball ring (908), and the ball ring (908) abuts against the compression spring (706).

10. The cryogenic ball valve one-way automatic quick-assembly tightening device according to claim 9, characterized in that, The drive frame (902) is U-shaped, and the drive frame (902) is slidably connected to the support (704), and the support (704) is slidably connected to the vertical rod (906).

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