A device for removing a plurality of cylinder caps

Abstract

The utility model relates to a gas cylinder technical field, concretely is a kind of dismounting device of multiple gas cylinder caps, including work station frame, the inside top of work station frame is equipped with several clamping components, gas cylinder is placed below clamping component, the top of gas cylinder is threadedly connected with bottle cap, clamping component is used to clamp and fix the bottle cap of gas cylinder, the top of clamping component is rotated by drive shaft drive and is screwed for bottle cap, multiple drive shafts are rotatably installed at the top of work station frame, and multiple drive shafts are connected by transmission component, the screwing of multiple bottle caps is realized dismounting.The dismounting device of multiple gas cylinder caps, through the equidistance arrangement design of multiple clamping components on the top of work station frame, cooperate the series transmission of drive shaft and transmission component, multiple-station synchronous dismounting operation is realized.The device can simultaneously screw several gas cylinder caps, especially suitable for the batch gas cylinder turnover scene of chemical industry, new energy and other industries, greatly shorten the time cost of traditional single batch processing.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder technology, and more specifically, to a device for disassembling multiple gas cylinder caps. Background Technology

[0002] In industrial production and laboratory operations, gas cylinders serve as the primary storage containers for compressed gases, and the disassembly and assembly of their caps is a crucial step in ensuring the safe use of these gases. Currently, the methods for disassembling gas cylinder caps are mainly divided into two categories: manual operation and mechanized assistance. Manual operation relies on tools such as wrenches to manually tighten the caps, which is not only labor-intensive and inefficient, but may also lead to safety hazards such as slippage of the cap or misoperation of the valve due to improper torque control, resulting in gas leaks. Traditional mechanized devices mostly adopt a single-station design, such as the "Gas Cylinder Cap Disassembly and Assembly Device" (authorization announcement number CN222643724U) disclosed by China Shipbuilding Special Gas. This device uses a ring-shaped limiting structure in conjunction with a T-shaped pin to achieve electric tightening of a single cap. Although it solves the safety problem of manual operation, it can only process one gas cylinder at a time, which is difficult to meet the high-efficiency requirements of mass production scenarios.

[0003] With the rapid development of industries such as new energy and chemicals, the turnover rate of gas cylinders has increased significantly, making the demand for multi-station synchronous operations increasingly urgent. Currently, the development of multi-station devices faces two major bottlenecks: first, the synchronization control of the transmission system. If the rotational speed or torque of multiple disassembly units is inconsistent, it can easily lead to incomplete disassembly of some cylinder caps or excessive force. Second, the versatility of the clamping mechanism. The cap sizes of different gas cylinder specifications vary considerably, and traditional fixed-size clamping components are difficult to adapt to diverse needs. Furthermore, the GB / T 17258-2022 standard imposes strict requirements on the precision and strength of the cylinder neck threads. If radial offset or excessive axial force occurs during disassembly, it may cause damage to the cylinder neck, affecting the reusability of the gas cylinder. Utility Model Content

[0004] The purpose of this utility model is to provide a disassembly device for multiple gas cylinder caps, in order to solve the problem mentioned in the background art that the caps of different specifications of gas cylinders have large differences in size, and traditional fixed-size clamping components are difficult to adapt to diverse needs.

[0005] To achieve the above objectives, this utility model provides a device for disassembling multiple gas cylinder caps, including a workstation frame. Several clamping components are installed on the inner top of the workstation frame. Gas cylinders are placed below the clamping components, and bottle caps are threadedly connected to the top of the gas cylinders. The clamping components are used to clamp and fix the bottle caps of the gas cylinders. The top of the clamping components is driven to rotate by a drive shaft to screw the bottle caps. Multiple drive shafts are rotatably installed on the top of the workstation frame, and the multiple drive shafts are connected in series through a transmission component to realize the screwing and disassembly of multiple bottle caps.

[0006] This setup integrates multiple clamping components via a workstation rack. The rotational power of the drive shafts drives the clamping components to screw on the bottle caps. Simultaneously, a transmission component connects all drive shafts, forming a multi-station collaborative operation system. The clamping components first fix the bottle caps, and then the drive shafts drive them to rotate, achieving synchronous disassembly.

[0007] Preferably, the clamping component includes a housing, and a lead screw is rotatably mounted inside the housing. The lead screw includes two rod sections with opposite threads, and a lead screw slider is threaded onto each of the two rod sections. The lead screw slider is positioned and slidably connected within the housing. The bottom of the lead screw slider slides through and extends to the bottom outer side of the housing and is fixedly mounted with a clamping plate. One end of the lead screw is driven to rotate by a lead screw motor, thereby causing the two lead screw sliders to separate or move closer to each other, so as to clamp or release the bottle cap with the two clamping plates.

[0008] This clamping component adopts a two-way lead screw structure (including two reverse threads). When the lead screw motor drives the lead screw to rotate, the two lead screw sliders on the two threads move synchronously in opposite directions, causing the two clamping plates to move closer or separate, thus completing the clamping or releasing action of the bottle cap.

[0009] Preferably, the sides of the two clamping plates that are close to each other are provided with anti-slip textures.

[0010] This feature involves machining anti-slip textures on the side of the clamping plate to increase the coefficient of friction of the contact surface and improve the static friction between the clamping plate and the bottle cap.

[0011] Preferably, a connecting sleeve is installed on the top of the clamping component, and the connecting sleeve is axially slidably engaged with the bottom of the drive shaft. A locking rod is installed on one side of the drive shaft, and a vertical guide hole is provided on the side wall of the connecting sleeve. The locking rod is vertically slidably engaged with the guide hole. The rotation of the drive shaft drives the connecting sleeve to rotate through the locking rod, thereby realizing the rotation of the clamping component. The clamping component screws and lifts the bottle cap to remove the bottle cap.

[0012] This configuration involves an axial sliding fit between the connecting sleeve and the drive shaft (the clamping rod slides into the guide hole). When the drive shaft rotates, it transmits torque through the clamping rod, causing the connecting sleeve and clamping components to rotate synchronously. Simultaneously, the clamping components rise axially along the guide hole as the bottle cap is unscrewed, achieving a combined "rotation + lifting" motion.

[0013] Preferably, the transmission component includes a chain and several driven sprockets, the top of the drive shaft extends rotatably to the outer side of the top of the workstation frame, the several driven sprockets are respectively mounted on the top of the corresponding drive shaft, and the several driven sprockets are connected to each other by chain drive.

[0014] This setup employs a chain-driven sprocket drive system, where the driven sprockets at the top of all drive shafts are connected in series via the same chain to achieve synchronous power transmission.

[0015] Preferably, a drive motor is installed on one outer wall of the workstation frame, and a drive sprocket is installed on the output shaft of the drive motor. The drive sprocket is meshed with the chain, and the drive sprocket drives the chain to move, thereby realizing the rotation of several driven sprockets.

[0016] This setup uses a single drive motor to drive a chain via a drive sprocket, which in turn drives all driven sprockets and drive shafts to rotate synchronously, forming a "one source, multiple drives" power system.

[0017] Preferably, several of the clamping components are arranged at equal intervals on the inner top of the workstation frame.

[0018] This feature includes several clamping components arranged at equal intervals to ensure that the placement of each gas cylinder is uniform and to prevent vibration of the device caused by uneven force during operation.

[0019] Preferably, the bottom of the workstation frame is fixed to the ground by welding or bolts.

[0020] This setup connects the bottom of the workstation frame to the ground via welding (rigid fixation) or bolts (adjustable fixation), enhancing the connection strength between the device and the foundation.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This multi-cylinder cap disassembly device utilizes a design where multiple clamping components are arranged at equal intervals on the top of the workstation frame. Combined with the series transmission of the drive shaft and transmission components, it enables simultaneous disassembly operations at multiple workstations. Compared to the single-workstation design in prior art CN222643724U, this device can simultaneously perform screwing operations on several cylinder caps. The operational efficiency increases linearly with the number of workstations, making it particularly suitable for batch cylinder turnover scenarios in industries such as chemical and new energy, significantly reducing the time cost of traditional single-batch processing.

[0023] The clamping mechanism employs a bidirectional lead screw drive structure. The two reverse threads of the lead screw drive two lead screw sliders and two clamping plates to move synchronously in opposite directions, allowing for flexible adjustment of the clamping distance to accommodate gas cylinder caps of different diameters (covering common φ30-φ100mm bottle necks). Simultaneously, the anti-slip texture on the sides of the clamping plates increases friction with the bottle cap, solving the problems of poor versatility and slippage inherent in traditional fixed-size clamping mechanisms, ensuring stable clamping even for irregularly shaped or smooth-surfaced bottle caps.

[0024] The axial sliding fit design between the connecting sleeve and the drive shaft (achieved through the vertical sliding of the clamping rod and the guide hole) allows the clamping component to rise synchronously with the thread helix angle when screwing the bottle cap, avoiding the axial force concentration caused by traditional rigid connections. This "rotation + lifting" composite motion mode can precisely control the screwing torque (adjusted by the output power of the drive motor) and reduce radial offset, fully complying with the requirements of GB / T 17258-2022 standard for gas cylinder mouth protection, effectively reducing the risk of stripped or deformed cylinder mouth threads.

[0025] The system employs a chain-sprocket drive system (including drive sprockets and driven sprockets), which drives all drive shafts to rotate synchronously via a single drive motor. This ensures the consistency of speed and torque of each clamping component. Compared to gear sets or belt drives, the transmission error of this structure is less than 0.5%, avoiding problems such as incomplete disassembly of some bottle caps or excessive stress caused by asynchronous multiple power sources, thus improving the stability of batch operations. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the clamping component in this utility model;

[0028] Figure 3 This is a schematic diagram of the drive shaft in this utility model;

[0029] The meanings of the labels in the diagram are as follows:

[0030] 1. Workstation frame; 2. Clamping components; 21. Housing; 22. Lead screw; 23. Lead screw motor; 24. Lead screw slider; 25. Clamping plate; 3. Drive shaft; 31. Driven sprocket; 32. Chain; 33. Clamping rod; 4. Connecting sleeve; 41. Guide hole; 5. Drive motor; 51. Drive sprocket; 6. Gas cylinder. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This utility model provides a device for disassembling multiple gas cylinder caps, such as... Figures 1-3As shown, the system includes a workstation frame 1. Several clamping components 2 are installed on the inner top of the workstation frame 1. A gas cylinder 6 is placed below the clamping components 2. The top of the gas cylinder is threaded with a cap. The clamping components 2 are used to clamp and fix the cap of the gas cylinder 6. The top of the clamping components 2 is driven to rotate by a drive shaft 3 to screw the cap. Multiple drive shafts 3 are rotatably installed on the top of the workstation frame 1. The multiple drive shafts 3 are connected in series through a transmission component to realize the screwing and unscrewing of multiple caps.

[0033] In use, multiple clamping components 2 are integrated through the workstation frame 1. The rotational power of the drive shaft 3 drives the clamping components 2 to screw on the bottle caps. Simultaneously, all drive shafts 3 are connected in series through a transmission component, forming a multi-workstation collaborative operation system. The clamping components 2 first fix the bottle caps of the gas cylinders 6, and then are driven to rotate by the drive shafts 3 to achieve synchronous disassembly. This structural design breaks through the limitations of traditional single-workstations, achieving batch operations through the series transmission of multiple drive shafts 3. The work efficiency increases linearly with the number of workstations. The overall structure is modular, making it easy to flexibly adjust the number of clamping components 2 according to the processing volume, adapting to different scales of production needs.

[0034] In this embodiment, as Figure 2 As shown, the clamping component 2 includes a housing 21. A lead screw 22 is rotatably mounted inside the housing 21. The lead screw 22 includes two rod sections with opposite threads. A lead screw slider 24 is threaded onto each of the two rod sections. The lead screw slider 24 is positioned and slidably connected within the housing 21. The bottom of the lead screw slider 24 slides through and extends to the outer bottom of the housing 21, where a clamping plate 25 is fixedly mounted. One end of the lead screw 22 is driven to rotate by a lead screw motor 23, which in turn causes the two lead screw sliders 24 to separate or move closer to each other, thereby enabling the two clamping plates 25 to clamp or release the bottle cap.

[0035] In use, the clamping component 2 adopts a bidirectional lead screw 22 structure with two reverse threads. When the lead screw motor 23 drives the lead screw 22 to rotate, the lead screw sliders 24 on the two threads move synchronously in opposite directions, causing the two clamping plates 25 to move closer or separate, thus completing the clamping or releasing action of the bottle cap. Through the stepless adjustment of the lead screw slider 24, it can be adapted to bottle caps of different sizes, solving the problem of universality of traditional fixed-size clamping mechanisms; the self-locking characteristic of the lead screw 22 transmission ensures stable clamping force and prevents the bottle cap from falling off during disassembly.

[0036] Specifically, such as Figure 2 As shown, the two clamping plates 25 have anti-slip textures on their sides that are close to each other.

[0037] During use, anti-slip textures are machined on the side of the clamping plate 25 to increase the coefficient of friction of the contact surface and improve the static friction between the clamping plate 25 and the bottle cap. This structural design effectively prevents damage to the bottle cap or incomplete disassembly due to slippage during screwing, and is especially suitable for bottle caps with smooth or irregular surfaces; the textured design also reduces the indentation of the clamping plate 25 on the bottle cap surface, protecting the integrity of the appearance.

[0038] Furthermore, such as Figure 1 As shown, a connecting sleeve 4 is installed on the top of the clamping component 2. The connecting sleeve 4 is axially slidably engaged with the bottom of the drive shaft 3. A locking rod 33 is installed on one side of the drive shaft 3. A vertical guide hole 41 is provided on the side wall of the connecting sleeve 4. The locking rod 33 is vertically slidably engaged with the guide hole 41. The rotation of the drive shaft 3 drives the connecting sleeve 4 to rotate through the locking rod 33, thereby realizing the rotation of the clamping component 2. The clamping component 2 screws the bottle cap and lifts it up, thereby realizing the removal of the bottle cap.

[0039] In use, the connecting sleeve 4 and the drive shaft 3 are axially slidably engaged with the guide hole 41 via the locking rod 33. When the drive shaft 3 rotates, it transmits torque through the locking rod 33, causing the connecting sleeve 4 and the clamping component 2 to rotate synchronously. At the same time, the clamping component 2 rises axially along the guide hole 41 as the bottle cap is unscrewed, realizing a "rotation + lifting" composite motion. This structural design avoids the axial force concentration caused by traditional rigid connections, reducing the risk of deformation of the bottle neck thread; the axial sliding design ensures that the disassembly process perfectly matches the helix angle of the bottle cap thread.

[0040] Furthermore, such as Figure 3 As shown, the transmission component includes a chain 32 and several driven sprockets 31. The top of the drive shaft 3 extends rotatably to the outer side of the top of the workstation frame 1. Several driven sprockets 31 are respectively installed on the top of the corresponding drive shaft 3. The several driven sprockets 31 are connected to each other by the chain 32, and the chain 32 and the driven sprockets 31 are meshed together.

[0041] In use, a chain 32-driven sprocket 31 transmission system is adopted. The driven sprockets 31 at the top of all drive shafts 3 are connected in series through the same chain 32 to achieve synchronous power transmission. Moreover, the chain drive has no elastic slippage, and the average transmission ratio accuracy error is < 0.5%, ensuring consistent speed at each station. Compared with belt drive, this structural design allows the meshing transmission of the chain 32 and driven sprocket 31 to withstand greater torque, adapting to the needs of high-intensity operations.

[0042] Furthermore, such as Figure 1 As shown, a drive motor 5 is installed on one outer wall of the workstation frame 1. A drive sprocket 51 is installed on the output shaft of the drive motor 5. The drive sprocket 51 is meshed with the chain 32. The drive sprocket 51 drives the chain 32 to move, thereby realizing the rotation of several driven sprockets 31.

[0043] In use, a single drive motor 5 drives the chain 32 via a drive sprocket 51, which in turn drives all driven sprockets 31 and drive shaft 3 to rotate synchronously, forming a "one source, multiple drives" power system. This structural design eliminates synchronization errors in multi-motor coordination through single power source control; the output power of the drive motor 5 can be precisely adjusted to achieve unified control of the screwing torque, avoiding damage to some bottle caps due to excessive or insufficient force.

[0044] Furthermore, such as Figure 1 As shown, several clamping components 2 are arranged at equal intervals on the inner top of the workstation frame 1.

[0045] During use, several clamping components 2 are arranged at equal intervals to ensure that the placement of each gas cylinder 6 is uniform, avoiding device vibration caused by uneven force during operation. This structural design improves the overall force balance of the device and reduces resonance when multiple workstations are operating simultaneously; the equal spacing design facilitates batch loading and positioning of gas cylinders 6, adapting to the integration requirements of automated conveyor lines.

[0046] Furthermore, such as Figure 1 As shown, the bottom of workstation frame 1 is fixed to the ground by welding or bolts.

[0047] During use, the bottom of the workstation frame 1 is connected to the ground by welding for rigid fixation or by adjustable bolt fixation, which enhances the connection strength between the device and the foundation and effectively resists the reaction force of multi-workstation operation; the bolt fixing method can also adapt to different ground conditions, which facilitates the installation, commissioning and subsequent maintenance of the device.

[0048] In use, the disassembly device for multiple gas cylinder caps of this utility model first uses a workstation frame 1 as a carrier. Several clamping components 2 are arranged at equal intervals. The power of the single drive motor 5 is synchronously distributed to each drive shaft 3 through a chain-sprocket transmission system, ensuring that the speed and torque of the multiple workstations are consistent. The bidirectional lead screw 22 in the clamping component 2, driven by the lead screw motor 23, drives two lead screw sliders 24 and two clamping plates 25 to move synchronously in opposite directions, which can accommodate bottle caps of different specifications. The anti-slip texture on the side of the clamping plate 25 enhances friction and prevents slippage during twisting. The drive shaft 3 slides into the guide hole 41 of the connecting sleeve 4 through the clamping rod 33, which not only transmits the rotational torque to drive the clamping component 2 to twist the bottle cap, but also allows the clamping component 2 to rise axially, realizing a "rotation + lifting" compound motion, matching the helix angle of the bottle cap thread, and avoiding overload on the bottle mouth.

[0049] Place the gas cylinders 6 to be disassembled one by one directly below the clamping component 2, ensuring that the bottle caps are within the clamping range of the clamping plate 25; the workstation frame 1 is kept stable by bottom welding or bolt fixing to avoid shaking during operation.

[0050] Start the lead screw motor 23 to drive the bidirectional lead screw 22 to rotate. The two reverse threads drive the two lead screw sliders 24 and the two clamping plates 25 to move closer to each other until the two clamping plates 25 are tightly attached to both sides of the bottle cap. The anti-slip texture increases the friction to ensure that the clamping is firm and does not slip.

[0051] When the drive motor 5 is started, its output shaft drives the chain 32 to rotate through the drive sprocket 51. The chain 32 drives all driven sprockets 31 and drive shaft 3 to rotate synchronously. The drive shaft 3 transmits torque to the connecting sleeve 4 through the clamp 33, which drives the clamping component 2 and the bottle cap to rotate synchronously.

[0052] As the bottle cap is unscrewed and rises, the clamping component 2 rises axially along the drive shaft 3 under the action of the threaded lifting force, and the guide hole 41 of the connecting sleeve 4 slides vertically along the clamping rod 33, realizing the "rotation + rise" compound motion, avoiding the generation of additional axial force on the bottle mouth.

[0053] Once the cap is completely detached from the gas cylinder 6, the drive motor 5 stops running; the lead screw motor 23 reverses, causing the two clamping plates 25 to separate and loosen the cap, which can then be removed manually or by an automated mechanism; by repeating the above steps, multiple batches of gas cylinder cap removal operations can be performed continuously.

[0054] Finally, it should be noted that the electronic components in the lead screw motor 23 and other components in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order between each electrical component in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for disassembling multiple gas cylinder caps, comprising a workstation frame (1), characterized in that: Several clamping components (2) are installed on the inner top of the workstation frame (1). A gas cylinder (6) is placed below the clamping component (2). The top of the gas cylinder is threaded with a bottle cap. The clamping component (2) is used to clamp and fix the bottle cap of the gas cylinder (6). The top of the clamping component (2) is driven to rotate by a drive shaft (3) to screw the bottle cap. Multiple drive shafts (3) are rotatably installed on the top of the workstation frame (1). Multiple drive shafts (3) are connected in series through a transmission component to realize the screwing and disassembly of multiple bottle caps.

2. The disassembly device for multiple gas cylinder caps according to claim 1, characterized in that: The clamping component (2) includes a housing (21), and a lead screw (22) is rotatably installed inside the housing (21). The lead screw (22) includes two rod structures with opposite threads. A lead screw slider (24) is threadedly installed on both rod structures. The lead screw slider (24) is set in the housing (21) for limiting sliding connection. The bottom of the lead screw slider (24) slides through and extends to the bottom outside of the housing (21) and is fixedly installed with a clamping plate (25). One end of the lead screw (22) is driven to rotate by a lead screw motor (23), thereby causing the two lead screw sliders (24) to separate or move closer to each other, so as to realize the clamping or releasing of the bottle cap by the two clamping plates (25).

3. The disassembly device for multiple gas cylinder caps according to claim 2, characterized in that: The two clamping plates (25) are provided with anti-slip textures on their sides that are close to each other.

4. The disassembly device for multiple gas cylinder caps according to claim 1, characterized in that: The top of the clamping component (2) is equipped with a connecting sleeve (4), which is axially slidably engaged with the bottom of the drive shaft (3). A locking rod (33) is installed on one side of the drive shaft (3). A vertical guide hole (41) is provided on the side wall of the connecting sleeve (4). The locking rod (33) is vertically slidably engaged with the guide hole (41). The rotation of the drive shaft (3) drives the connecting sleeve (4) to rotate through the locking rod (33), thereby realizing the rotation of the clamping component (2). The clamping component (2) screws the bottle cap and rises to disassemble the bottle cap.

5. The disassembly device for multiple gas cylinder caps according to claim 1, characterized in that: The transmission component includes a chain (32) and a plurality of driven sprockets (31). The top of the drive shaft (3) extends rotatably to the outer side of the top of the workstation frame (1). The plurality of driven sprockets (31) are respectively mounted on the top of the corresponding drive shaft (3). The plurality of driven sprockets (31) are connected to each other by the chain (32).

6. The disassembly device for multiple gas cylinder caps according to claim 5, characterized in that: A drive motor (5) is installed on one side of the outer wall of the workstation frame (1). A drive sprocket (51) is installed on the output shaft of the drive motor (5). The drive sprocket (51) is meshed with the chain (32). The drive sprocket (51) drives the chain (32) to move, thereby realizing the rotation of several driven sprockets (31).

7. The disassembly device for multiple gas cylinder caps according to claim 1, characterized in that: Several clamping components (2) are arranged at equal intervals on the inner top of the workstation frame (1).

8. The disassembly device for multiple gas cylinder caps according to claim 1, characterized in that: The bottom of the workstation frame (1) is fixed to the ground by welding or bolts.

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