Gantry type multilayer binding pressure vessel laminate binding machine

Abstract

The utility model relates to a gantry type multilayer binding pressure vessel laminate binding machine which comprises a longitudinally moving portal frame, three clamping mechanisms which tighten laminates and are arranged along the longitudinal direction, and a lifting device which is arranged on the portal frame and drives the clamping mechanisms to lift, and the lifting device comprises a base arranged on the portal frame, the three lifting devices are located on the base and correspondingly lift the three clamping mechanisms, and the two lifting devices located on the two sides of the middle lifting device are connected to the base in a sliding mode in the longitudinal direction. When the large-scale pressure vessel wrapping device is used, the requirement for wrapping a large-scale pressure vessel is met through the arrangement of the portal frame, the large displacement of the clamping mechanism in the longitudinal direction is achieved through the arrangement of the portal frame, and the adjustment of the distance between the three hoisting mechanisms is achieved through the arrangement of longitudinal sliding connection of the hoisting mechanisms. Therefore, the longitudinal position of the clamping mechanism on the shaft of the pressure vessel can be adjusted, and the binding requirement of the large pressure vessel can be met.

Description

Technical Field

[0001] This utility model relates to the field of wrapping, and more particularly to the field of pressure vessel wrapping technology, specifically referring to a gantry-type multi-layer wrapping pressure vessel layer wrapping machine. Background Technology

[0002] Multi-layer wrapped pressure vessels are pressure vessels formed by layering layers of plates onto an inner cylinder. They include two forms: multi-layer section wrapped and multi-layer integral wrapped. Multi-layer integral wrapped pressure vessels offer advantages such as no deep circumferential welds, ideal structure, high safety, low cost, and short construction period. During manufacturing, attention must be paid to the fit quality between the plates and the inner cylinder, as well as the staggering of the welds between each layer. Multi-layer wrapped pressure vessels are suitable for medium and high-pressure vessels, such as hydrogen storage tanks and ammonia synthesis towers.

[0003] There are generally two methods for wrapping the layers of a multi-layer pressure vessel: one is to use wire rope clamping; the other is to use a wrapping machine to directly clamp the layers onto the inner cylinder. Because the wire rope clamping method requires a large wrapping force and the radial contact stress distribution between the wrapping layers is uneven along the axial direction, it has been gradually replaced by the wrapping machine method.

[0004] Chinese invention patent application number 200810233752.7 discloses a multi-functional wrapping machine for multi-layer wrapping of metal pressure vessels, but the pressure vessels it wraps are small and the clamping mechanism has limited vertical position adjustment. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a gantry-type multi-layer wrapping pressure vessel layer wrapping machine, suitable for large pressure vessels, and facilitating the adjustment of the longitudinal position of the clamping mechanism on the pressure vessel shaft.

[0006] This utility model is achieved through the following technical solution: a gantry-type multi-layer wrapping pressure vessel layer wrapping machine, including a longitudinally moving gantry frame, three clamping mechanisms that tighten the layers and are arranged longitudinally, and a lifting device set on the gantry frame and driving the clamping mechanisms to lift. The lifting device includes a base set on the gantry frame, three lifting devices located on the base and corresponding to lifting the three clamping mechanisms, and two lifting devices located on both sides of the middle lifting device that slide longitudinally on the base.

[0007] In use, this utility model, through the setting of the gantry frame, meets the needs of wrapping large pressure vessels. The setting of the gantry frame enables the clamping mechanism to move significantly in the longitudinal direction. Through the longitudinal sliding connection of the hoisting mechanism, the distance between the three hoisting mechanisms can be adjusted, that is, the longitudinal position of the clamping mechanism on the pressure vessel shaft can be adjusted, thereby meeting the needs of wrapping large pressure vessels.

[0008] Preferably, the lifting device includes a winch that drives the clamping mechanism to lift, and a support connected to the winch. The support in the middle is bolted to the base. The base is provided with a moving device that drives the two supports to move longitudinally. The two moving devices are symmetrically arranged about the middle winch, and the three winches are located between the two moving devices.

[0009] This preferred solution facilitates the lifting of the winch mechanism by setting up the winch, and the symmetrical arrangement of the two moving devices facilitates the movement of the winches on both sides towards or away from each other. At the same time, the three winches are located between the two moving devices, thereby avoiding the need for the moving devices to be located between the two winches, thus limiting the minimum distance between the two winches.

[0010] Preferably, the moving device includes a lead screw that is hinged to the support and extends longitudinally, a reducer that drives the lead screw to move longitudinally is provided on the base, an elongated hole that extends longitudinally is also provided on the base, and a slider that is inserted into the elongated hole and bolted to the lead screw is provided on the support.

[0011] This preferred solution facilitates the longitudinal movement of the support by using a lead screw and a reducer, and provides guidance by using a slider and an elongated hole.

[0012] Preferably, the clamping mechanism includes two brackets hinged together by a pin, a clamping cylinder is provided above the pin, the extended end and the base of the clamping cylinder are respectively hinged to the two brackets, the two brackets are connected to a lifting hinge that is connected to the wire rope of the winch, and the brackets are also provided with a jaw connecting seat located below the pin and extending inward, and a jaw claw shaft is connected to the jaw connecting seat.

[0013] This preferred solution, by improving the hinge design, facilitates the lifting and lowering of the two supports by the winch, and by using the clamping cylinder, facilitates the rotation of the two supports, thereby clamping the shelf through the engagement of the jaw claw shaft with the process holes on the shelf.

[0014] Preferably, the bottom end of the winch rope is connected to a pull ring, and two lifting hinges are connected to the pull ring, with the two lifting hinges arranged symmetrically about the pull ring.

[0015] This preferred solution, through the setting of pull ring and lifting hinge, avoids the two supports being at different heights and thus preventing them from tilting when being lifted.

[0016] Preferably, the base is also connected to two longitudinally arranged electric hoists, and three clamping mechanisms are located between the two electric hoists.

[0017] The purpose of this preferred solution is to use an electric hoist to wrap the layer with a wire rope after it enters the wrapping station. The extension and retraction of the electric hoist provides a pre-tightening force so that the layer is initially wrapped on the inner cylinder or the upper layer, thus providing conditions for the clamping mechanism of the wrapping machine to engage the process hole.

[0018] The beneficial effects of this utility model are as follows: the gantry frame meets the requirements for wrapping large pressure vessels; the gantry frame allows for a large longitudinal displacement of the clamping mechanism; the longitudinal sliding connection of the winch mechanism allows for adjustment of the distance between the three winch mechanisms, i.e., adjustment of the longitudinal position of the clamping mechanism on the pressure vessel shaft, thus meeting the requirements for wrapping large pressure vessels; the winch mechanism facilitates lifting; the symmetrical arrangement of the two moving devices facilitates the movement of the winches on both sides towards or away from each other; and the three winches are located between the two moving devices, thus avoiding the need for moving devices to be located between the two winches, thereby limiting the minimum distance between the two winches. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 These are three views of the structure of this utility model;

[0021] Figure 3 This is an enlarged schematic diagram of the clamping mechanism;

[0022] As shown in the figure:

[0023] 1. Gantry frame, 2. Lifting device, 3. Winch, 4. Screw, 5. Support, 6. Clamping device, 7. Bracket, 8. Clamping cylinder, 9. Pin, 10. Lifting hinge, 11. Connecting seat, 12. Jaw chuck shaft, 13. Electric hoist. Detailed Implementation

[0024] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0025] See attached document Figure 1-3 This utility model discloses a gantry-type multi-layer wrapping pressure vessel layer wrapping machine, including a longitudinally moving gantry frame 1, three clamping mechanisms 6 that tighten the layers and are arranged longitudinally, and a lifting device 2 that is set on the gantry frame 1 and drives the clamping mechanisms 6 to lift. The lifting device 2 includes a base set on the gantry frame 1, three lifting devices 2 located on the base and corresponding to lifting the three clamping mechanisms 6, and two lifting devices 2 located on both sides of the middle lifting device 2 that slide longitudinally on the base.

[0026] The gantry crane 1 includes the gantry body, ground rails, traveling mechanism, and work platform. The traveling mechanism is equipped with a cycloidal reducer, which enables the gantry crane to travel on the rails at a suitable speed, with the purpose of moving to the next work station after wrapping a single section of the shelf.

[0027] The main body of the gantry is assembled from H-beams, with all connections made of bolts. This allows for easy assembly and disassembly, facilitating transportation and rapid on-site assembly. An operating platform is mounted on gantry 1 for housing the electrical control box and hydraulic station. This platform also serves as the operator's work platform.

[0028] The lifting device 2 includes a winch 3 that drives the clamping mechanism 6 to lift, and a support 5 connected to the winch 3. The control system controls the winch 3 to rotate forward and backward, driving the clamping mechanism 6 suspended below to rise and fall, thereby meeting the wrapping requirements of shelves of different diameters. To reduce the tension of the clamping mechanism 6 on the shelves and ensure clamping quality.

[0029] The support 5 in the middle is bolted to the base. The base is equipped with a moving device that drives the supports 5 on both sides to move longitudinally. The two moving devices are symmetrically arranged about the middle winch 3, and the three winches 3 are located between the two moving devices.

[0030] The base is made of rectangular tubes welded together and fixed to the gantry frame 1 with bolts on both sides, providing platform support for the lifting and translation mechanism.

[0031] The moving device includes a lead screw 4 that is hinged to the support 5 and extends longitudinally. The base is provided with a reducer that drives the lead screw 4 to move longitudinally. The base is also provided with a longitudinally extending elongated hole. The support 5 is provided with a slider that is inserted into the elongated hole and bolted to the lead screw 4.

[0032] The clamping mechanism 6 includes two supports 7 hinged together by a pin 9. A clamping cylinder 8 is provided above the pin 9. The extended end and base of the clamping cylinder 8 are respectively hinged to the two supports 7. The two supports 7 are connected to lifting hinges 10 that are connected to the wire rope of the winch 3. The supports 7 are also provided with jaw connecting seats 11 located below the pin 9 and extending inward. Jaw clamping claw shafts 12 are connected to the jaw connecting seats 11. The two jaw clamping claw shafts 12 are symmetrically arranged. The extension and retraction of the cylinder will cause the jaw clamping claw shafts 12 to grasp the process hole of the wrapping layer plate and tighten the layer plate tightly, and fit it tightly with the inner cylinder of the wrapping container or the layer plate. After confirming the fit, the weld of the layer plate is locked and welded firmly.

[0033] The jaw chuck shaft 12 and jaw connecting seat 11 are machined from high-strength 40CrNiMoA steel. The jaw chuck shaft 12 has a diameter of 50mm. The opening and closing distance between the two jaw chuck shafts 12 is 150-400mm.

[0034] The bottom end of the winch 3 pull rope is connected to a pull ring, and the two lifting hinges 10 are connected to the pull ring, and the two lifting hinges 10 are symmetrically arranged about the pull ring.

[0035] The base is also connected to two longitudinally arranged electric hoists 13, and three clamping mechanisms 6 are located between the two electric hoists 13.

[0036] This is for products requiring layer wrapping. The layer thickness is determined according to product specifications and design documents, generally 6-20mm, and the width of a single layer is determined according to process requirements, generally 500-2200mm. The diameter of the process holes in the layer is Φ50mm, the distance from the process hole to the weld edge is 100-150mm, and the number of process holes is 2-3.

[0037] When using this utility model:

[0038] 1. Preparation before bandaging

[0039] The layers are formed by opening process holes and welding bevels; the inner cylinder and layers are pre-treated by grinding and rust removal. The inner cylinder of the wrapping container is placed on a suitable roller rack, and the layers to be wrapped are transferred to the wrapping station.

[0040] 2. Bandaging process

[0041] Using a crane, the wrapping cylinder is sent into the inner cylinder wrapping position. The wrapping machine gantry 1 is moved to above the shelf. The electric hoist 13, with its wire rope, is wound around the inner cylinder to lift and wrap it onto the inner cylinder. The lifting device 2 and the moving mechanism cause the clamping mechanism 6 jaws and claws 12 to embed into the process hole. The clamping cylinder 8 is controlled to complete the pre-tightening action. The three clamping mechanisms 6 complete the pre-tightening action according to the above operation. The final clamping force is set and the button is operated to the linkage state of the three clamping mechanisms 6. The three cylinders clamp synchronously to the set pressure value. The inspection is carried out according to the standard requirements. If the inspection is qualified, the bevel of the shelf reaches the welding state and is spot welded firmly. The clamping cylinder 8 is released and the wrapping machine is removed. The circumferential seam is welded and related treatments are performed to complete the wrapping work of one layer. This process is repeated to complete the wrapping work of all the shelves.

[0042] This gantry-type multi-layer wrapping pressure vessel layer wrapping machine has a simple structure and low manufacturing cost, approximately 1 / 10 that of similar products.

[0043] The lifting device 2 and clamping mechanism 6 of this gantry-type multi-layer wrapping pressure vessel layer wrapping machine are both modular assembly structures, facilitating rapid assembly and use. It is particularly suitable for large-diameter wrapping containers where on-site fabrication is necessary due to difficulties in factory construction or limited transportation conditions.

[0044] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A gantry-type multi-layer wrapping pressure vessel layer wrapping machine, characterized in that: It includes a longitudinally moving gantry (1), three clamping mechanisms (6) that tighten the shelves and are arranged longitudinally, and a lifting device (2) that is set on the gantry (1) and drives the clamping mechanisms (6) to lift. The lifting device (2) includes a base set on the gantry (1), three lifting devices (2) located on the base and corresponding to lifting the three clamping mechanisms (6), and two lifting devices (2) located on both sides of the middle lifting device (2) that slide longitudinally on the base.

2. The gantry-type multi-layer wrapping pressure vessel layer wrapping machine according to claim 1, characterized in that: The lifting device (2) includes a winch (3) that drives the clamping mechanism (6) to lift, and a support (5) connected to the winch (3). The support (5) in the middle is bolted to the base. The base is provided with a moving device that drives the two supports (5) to move longitudinally. The two moving devices are symmetrically arranged about the middle winch (3), and the three winches (3) are located between the two moving devices.

3. The gantry-type multi-layer wrapping pressure vessel layer wrapping machine according to claim 2, characterized in that: The moving device includes a lead screw (4) that is hinged to the support (5) and extends longitudinally. The base is provided with a reducer that drives the lead screw (4) to move longitudinally. The base is also provided with a longitudinally extending elongated hole. The support (5) is provided with a slider that is inserted into the elongated hole and bolted to the lead screw (4).

4. The gantry-type multi-layer wrapping pressure vessel layer wrapping machine according to claim 2, characterized in that: The clamping mechanism (6) includes two brackets (7) hinged together by a pin (9). A clamping cylinder (8) is provided above the pin (9). The extended end and the base of the clamping cylinder (8) are respectively hinged to the two brackets (7). A lifting hinge (10) connected to the wire rope of the winch (3) is connected to the two brackets (7). A jaw connecting seat (11) located below the pin (9) and extending inward is also provided on the bracket (7). A jaw claw shaft (12) is connected to the jaw connecting seat (11).

5. The gantry-type multi-layer wrapping pressure vessel layer wrapping machine according to claim 4, characterized in that: The bottom end of the winch (3) pull rope is connected to a pull ring, and the two lifting hinges (10) are connected to the pull ring, and the two lifting hinges (10) are symmetrically arranged about the pull ring.

6. The gantry-type multi-layer wrapping pressure vessel layer wrapping machine according to claim 2, characterized in that: The base is also connected to two longitudinally arranged electric hoists (13), and three clamping mechanisms (6) are located between the two electric hoists (13).

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