Ship pressure gauge pipe coiling device and method

Abstract

The invention discloses a ship pressure gauge pipe coiling device and method, the ship pressure gauge pipe coiling device is provided with a pressure gauge pipe buffer ring coiling device, the device is provided with a panel, a bending die guide rod, a fixing rod and a rotating shaft are fixed on the panel, and one end of a pressure gauge pipe to be coiled penetrates through the middle of the bending die guide rod and the fixing rod and is wound on the rotating shaft. Initial bending is carried out through a stress application rod, observation is carried out through a dial, and a pressure gauge pipe is bent on a bending die guide rod to reach an angle within 180 degrees in advance. And then the pressure gauge pipe with the bent angle is placed on the rotating shaft to be fixed, the rotating shaft is driven to rotate the disc circle through mutual meshing of the driving gear and the driven gear, and the needed angle and the number of circles of the buffer ring are obtained by observing the angle dial. The device is simple in design, easy to manufacture, convenient to carry and rapid to install; potential safety hazards possibly caused by flame heating are effectively avoided, and cold bending manufacturing is safer; the device is adaptive to various pipelines made of different materials; the required angle can be directly observed, and the measurement precision is high.

Description

Technical Field

[0001] This invention belongs to the field of marine shipbuilding and design, and specifically relates to a device and method for coiling pressure gauge tubes for ships. Background Technology

[0002] Pressure gauge tube buffer rings are an indispensable key component in pressure monitoring systems. Their core functions are buffering, shock absorption, connection, and cooling. They are widely used in various industries such as shipbuilding, petroleum, natural gas, environmental protection, and chemical engineering. Buffer rings effectively prevent the medium pressure from directly impacting the Bourdon tube inside the instrument, thus accurately reflecting the medium pressure index. They are a protective device for pressure gauges.

[0003] In recent years, with the increasing demands for ship automation, pressure gauges are being deployed more extensively in pipeline systems across the engine room, decks, and superstructure. Ordinary pipe benders have a bending range of less than 180°, which is insufficient for the bending range requirements of buffer rings. Traditional flame-heated bending methods are only suitable for copper and steel pipes and have significant limitations, primarily in the following aspects: 1. Flame heating and bending cannot be used to manufacture stainless steel pipes or copper-nickel alloy pipes, as it will damage the original material properties of the pipes.

[0004] 2. The site must meet the requirements of oxygen, fuel gas (acetylene), gas hose, gas meter, cutting (welding) torch, etc., and requires two or more people to operate, resulting in low work efficiency.

[0005] 3. Heated pipes soften and are easily deformed or damaged by external forces, requiring annealing and solution treatment to relieve stress.

[0006] 4. Flame heating causes oxide scale to form inside the tube, which may cause blockage, affect the surface finish, and easily lead to cracks and scratches.

[0007] 5. When making the buffer ring by fire, the pressure gauge tube needs to be heated to about 800-1000 degrees Celsius. Otherwise, it will affect the ovality and wrinkles of the pressure gauge tube, posing a certain safety hazard. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides a device and method for coiling pressure gauge tubes for ships, aiming to achieve rapid coiling of the pressure gauge tube buffer ring. The technical solution adopted is as follows: A pressure gauge tube coiling device for ships has a vertically arranged square panel. A bending die guide rod is fixed on one side of the front of the panel. A limit rod and a fixing rod are arranged in sequence above the bending die guide rod. The length of the limit rod is less than the length of the bending die guide rod and the fixing rod. The fixing rod has external threads and is threadedly connected to a clamping nut.

[0009] A rotating shaft is provided on the other side of the panel. The rotating shaft passes through the panel, and a driven gear is fixed at one end of the rotating shaft on the back of the panel. The driven gear meshes with the driving gear, and the driving gear is fixed to the back of the panel through the driving shaft. A locking buckle is fixed on the rotating shaft.

[0010] A stop bar is provided between the bending die guide rod and the rotating shaft. One end of the pressure gauge tube to be coiled passes through the middle of the bending die guide rod and the fixed rod, and is wound around the rotating shaft. The stop bar is located above the bending die guide rod.

[0011] A gear baffle is fixed to the end of the rotating shaft located on the back of the panel. The radius of the gear baffle is larger than the radius of the rotating shaft. A bracket is provided between the gear baffle and the panel, and the gear baffle is fixed to the back of the panel by the bracket.

[0012] The gear baffle is concentric with the rotating shaft. A bearing rod is installed at the center of the gear baffle. The bearing rod passes through the gear baffle, the driven gear, and the fixed support plate in sequence before being fixed with a nut.

[0013] A 360° scale line is drawn along the circumference of the rotation axis, and a 180° scale line is drawn on the outer surface of the bending die guide rod, located on the side close to the rotation axis. In addition, marking lines corresponding to 30°, 45° and 90° are drawn on the panel surface.

[0014] Furthermore, in the aforementioned marine pressure gauge tube coiling device, the locking buckle is a round buckle with a notch.

[0015] Furthermore, the aforementioned pressure gauge tube coiling device for ships is further provided with a rotating handle on the drive shaft, and the rotating handle is located on the back of the panel.

[0016] Furthermore, in the aforementioned pressure gauge tube coiling device for ships, when one end of the coiled pressure gauge tube passes between the bending die guide rod and the fixing rod, it presses against the limiting rod.

[0017] Furthermore, in the aforementioned pressure gauge tube coiling device for ships, the drive shaft passes sequentially through the panel, drive gear, fixed support plate, and rotating handle before being fixed with a nut.

[0018] Furthermore, the aforementioned pressure gauge tube coiling device for ships has multiple sets of fixing holes on the panel surface, with two fixing holes in each set. The two fixing holes are symmetrically arranged, and the fixing holes cooperate with fixing rings. The fixing rings are U-shaped rings located on the back of the panel, and the free end of the fixing rings is connected to the fixing holes and fixed by bolts.

[0019] A method for coiling a pressure gauge tube for a ship involves using a fixing shackle to fix the coiling device to the ship's hull structure. One end of the pressure gauge tube passes through the middle of a fixing rod and a bending mold guide rod. An extension rod is used to initially bend the end of the pressure gauge tube to the required degree. The initial bending is completed when the end of the pressure gauge tube is parallel to the marking line corresponding to the required degree.

[0020] After the initial bending, the pressure gauge tube continues forward, wraps around to the top of the rotating shaft, and the curved end of the pressure gauge tube is locked into the locking buckle. Adjust the clamping nut to fix the pressure gauge tube between the fixed rod and the bending die guide rod, and press it against the limit rod to prevent the pressure gauge tube from slipping out.

[0021] Manually rotate the operating handle to engage the drive gear and driven gear. The driven gear drives the rotating shaft to rotate and begin to bend the buffer ring. During the bending process, the stop bar restricts the pressure gauge tube from arching upwards. By observing the angle scale lines on the surface of the rotating shaft, the required buffer ring angle and number of turns can be obtained.

[0022] Furthermore, in the above-mentioned method for coiling a pressure gauge tube for a ship, the pressure gauge tube is inserted into a locking buckle, which is interference-fitted with the locking buckle.

[0023] This invention is lightweight and portable, easy to use, and can be quickly installed, disassembled, and operated, making it suitable for various field environments. It is a cold bending processing device that can bend pressure gauge buffer rings of different materials more than 360° without relying on flame heating. It can quickly bend, saving labor costs, meeting tensile strength and pressure resistance requirements, without affecting the corrosion resistance and fatigue life of the pressure gauge tube, and can significantly improve production efficiency. Attached Figure Description

[0024] Figure 1 This is a front view structural diagram of the device of the present invention.

[0025] Figure 2 This is a top view of the device of the present invention.

[0026] Figure 3 This is a side view of the device of the present invention.

[0027] Figure 4 This is a partial schematic diagram of the initial bending of the pressure gauge tube end using a force-adding rod.

[0028] Among them, 1-fixed rod, 2-bending mold guide rod, 3-drive gear, 4-drive shaft, 5-driven gear, 6-bracket, 7-rotating shaft, 8-locking buckle, 9-rotating handle, 10-stop bar, 11-panel, 12-fixing hole, 13-fixed support plate, 14-nut, 15-marking line, 16-bearing rod, 17-clamping nut, 18-gear baffle, 19-limiting rod, 20-fixing retaining ring. Detailed Implementation

[0029] The present invention will be described in detail with reference to specific embodiments.

[0030] like Figure 1 , 2 As shown in Figure 3, a pressure gauge tube coiling device for ships has a vertically arranged square panel. A bending die guide rod is fixed on one side of the front of the panel. A limit rod and a fixing rod are arranged in sequence above the bending die guide rod. The length of the limit rod is less than the height of the bending die guide rod and the fixing rod. The fixing rod has external threads and is threadedly connected to a clamping nut.

[0031] A rotating shaft is provided on the other side of the panel. The rotating shaft passes through the panel. A driven gear is fixed at one end of the rotating shaft on the back of the panel. The driven gear meshes with the driving gear. The driving gear is fixed to the back of the panel through the driving shaft. A locking buckle is fixed on the rotating shaft. The locking buckle is a round buckle with a notch.

[0032] A gear baffle is fixed to the end of the rotating shaft located on the back of the panel. The radius of the gear baffle is larger than that of the rotating shaft. A bracket is provided between the gear baffle and the panel, and the gear baffle is fixed to the back of the panel by the bracket. The gear baffle and the rotating shaft are concentric. A bearing rod is provided at the center of the gear baffle. The bearing rod passes through the gear baffle, the driven gear, the fixed support plate, and the rotating handle in sequence, and is then fixed with a nut. The drive shaft passes through the drive gear and the fixed support plate in sequence, and is then fixed with a nut.

[0033] A stop bar is provided between the bending die guide rod and the rotating shaft. One end of the pressure gauge tube to be coiled passes through the middle of the bending die guide rod and the fixed rod, and is wound around the rotating shaft. The stop bar is located above the bending die guide rod.

[0034] A 360° scale line is drawn along the circumference of the rotation axis, and a 180° scale line is drawn on the outer surface of the bending die guide rod, located on the side close to the rotation axis. In addition, marking lines corresponding to 30°, 45° and 90° are drawn on the panel surface.

[0035] The panel surface has multiple sets of fixing holes, with two fixing holes in each set. The two fixing holes are symmetrically arranged, and the fixing holes cooperate with fixing rings. The fixing rings are U-shaped rings located on the back of the panel. The free end of the fixing rings is connected to the fixing holes and fixed by bolts.

[0036] A method for coiling a pressure gauge tube for a ship involves using a fixing shackle to fix the coiling device to the ship's hull structure. One end of the pressure gauge tube passes through the middle of a fixing rod and a bending mold guide rod. An extension rod is used to perform an initial bending of the pressure gauge tube end. The initial bending angle is 45°, that is, bending the end of the pressure gauge tube by 45°. When the end of the pressure gauge tube is parallel to the marking line corresponding to 45°, the initial bending is completed.

[0037] After the initial bending, the pressure gauge tube continues forward, wraps around to the top of the rotating shaft, and the curved end of the pressure gauge tube is locked into the locking buckle. Adjust the clamping nut to fix the pressure gauge tube between the fixed rod and the bending die guide rod, and press it against the limit rod to prevent the pressure gauge tube from slipping out.

[0038] Manually rotate the operating handle to engage the drive gear and driven gear. The driven gear drives the rotating shaft to rotate and begin to bend the buffer ring. During the bending process, the stop bar restricts the pressure gauge tube from arching upwards. By observing the angle scale lines on the surface of the rotating shaft, the required buffer ring angle and number of turns can be obtained.

Claims

1. A pressure gauge pipe dial round device for a marine vessel, characterized by, A square panel is arranged vertically. A bending die guide rod is fixed on one side of the front of the panel. A limit rod and a fixing rod are arranged in sequence above the bending die guide rod. The length of the limit rod is less than the length of the bending die guide rod and the fixing rod. The fixing rod has external threads and a clamping nut is threaded to the fixing rod. A rotating shaft is provided on the other side of the panel. The rotating shaft passes through the panel. A driven gear is fixed at one end of the rotating shaft on the back of the panel. The driven gear meshes with the driving gear. The driving gear is fixed to the back of the panel through the driving shaft. A locking buckle is fixed on the rotating shaft. A stop bar is provided between the bending die guide rod and the rotating shaft. One end of the pressure gauge tube to be coiled passes through the middle of the bending die guide rod and the fixed rod and is wound around the rotating shaft. The stop bar is located above the bending die guide rod. A gear baffle is fixed at the end of the rotating shaft located on the back of the panel. The radius of the gear baffle is larger than the radius of the rotating shaft. A bracket is provided between the gear baffle and the panel. The gear baffle is fixed to the back of the panel by the bracket. The gear baffle is concentric with the rotating shaft. A bearing rod is provided at the center of the gear baffle. The bearing rod passes through the gear baffle, the driven gear, and the fixed support plate in sequence and is then fixed with a nut. A 360° scale line is drawn along the circumference of the rotation axis, and a 180° scale line is drawn on the outer surface of the bending die guide rod, located on the side close to the rotation axis. In addition, marking lines corresponding to 30°, 45° and 90° are drawn on the panel surface.

2. A pressure gauge panel round device for a marine vessel according to claim 1, characterized in that The locking buckle is a round buckle with a notch.

3. The pressure gauge tube coiling device for ships according to claim 1, characterized in that, A rotating handle is provided on the drive shaft, and the rotating handle is located on the back of the panel.

4. The pressure gauge tube coiling device for ships according to claim 1, characterized in that, When one end of the pressure gauge tube, which is to be coiled, passes between the bending die guide rod and the fixing rod, it presses against the limiting rod.

5. A pressure gauge panel round device for a marine vessel according to claim 3, characterized in that The drive shaft passes through the panel, drive gear, fixed support plate, and rotating handle in sequence before being fixed with a nut.

6. A pressure gauge panel round device for a marine vessel according to claim 1, characterized in that The panel surface has multiple sets of fixing holes, with two fixing holes in each set. The two fixing holes are symmetrically arranged, and the fixing holes cooperate with fixing rings. The fixing rings are U-shaped rings located on the back of the panel. The free end of the fixing rings is connected to the fixing holes and fixed by bolts.

7. A method of peeling a pressure gauge pipe disc for a marine vessel, characterized by, The coiling device is fixed to the hull structure using a retaining shackle. One end of the pressure gauge tube passes through the middle of the fixing rod and the bending mold guide rod. The end of the pressure gauge tube is initially bent using a force-adding rod to bend it to the required degree. The initial bending is completed when the end of the pressure gauge tube is parallel to the marking line corresponding to the required degree. After the initial bending, the pressure gauge tube continues forward, wraps around to the top of the rotating shaft, and the curved end of the pressure gauge tube is locked into the locking buckle. Adjust the clamping nut to fix the pressure gauge tube between the fixed rod and the bending die guide rod, and press it against the limit rod to prevent the pressure gauge tube from slipping out. Manually rotate the operating handle to engage the drive gear and driven gear. The driven gear drives the rotating shaft to rotate and begin to bend the buffer ring. During the bending process, the stop bar restricts the pressure gauge tube from arching upwards. By observing the angle scale lines on the surface of the rotating shaft, the required buffer ring angle and number of turns can be obtained.

8. A method of peeling a vessel gauge panel according to claim 7, wherein, The pressure gauge tube is inserted into the locking buckle, with an interference fit.

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