Hydraulic oil cylinder hoisting device for ship lift lock head working gate in limited space

Abstract

The utility model provides a ship lift lock head limited space work gate hydraulic oil cylinder hoisting device which comprises a hoisting shaft device and a hoisting connecting device, after the hoisting device dismantles a large-tonnage crane main hook of an equipment layer, a hoisting shaft, a hoisting shaft sleeve, a steel wire rope inner baffle, a steel wire rope outer baffle and a locking threaded rod are sequentially installed, forming a hoisting shaft device; the hoisting steel wire rope is installed between the steel wire rope inner baffle and the steel wire rope outer baffle, the two ends of the hoisting steel wire rope penetrate through the connecting clamping rings to be connected with hydraulic oil cylinder hoisting lug plates, and hydraulic oil cylinder hoisting is achieved by driving the traveling crane main hook hoisting device to hoist. The whole device is convenient to disassemble and assemble and safe and efficient in hoisting process. Belongs to the technical field of hydraulic oil cylinder hoisting in limited space.

Description

Technical Field

[0001] The utility model relates to a hydraulic oil cylinder hoisting device for a working gate in a limited space at a ship lift lock head, belonging to the technical field of hydraulic oil cylinder hoisting in limited spaces. Background Art

[0002] The ship lift's working gate is responsible for blocking the water level in the waterway. By adjusting the gate's height, the water level in the ship compartment can be kept parallel to the water level in the waterway, ensuring smooth passage of ships under all water level conditions. As a key component for adjusting the working gate's position, the hydraulic cylinder must operate under high pressure and heavy loads for extended periods. Reciprocating operation can cause the seals of the hydraulic cylinder to age and become damaged to varying degrees, and even pitting and scratches may appear on the inner wall of the hydraulic cylinder. Continuous operation can lead to oil leakage and cylinder collapse, posing safety risks. To improve the reliability and safety of equipment operation, the hydraulic cylinder must be regularly disassembled and repaired.

[0003] The hydraulic cylinder for the working gate of a large ship lift was installed indoors. As required, the interior was fully enclosed and the height was limited, making it impossible for large lifting equipment to effectively lift the hydraulic cylinder. A large-capacity crane was also installed indoors. However, after the crane's main hook was connected to the hydraulic cylinder's lifting lugs and the crane was raised to its maximum position, the hydraulic cylinder's lifting head still could not be raised to the surface of the hydraulic cylinder's mounting base, making it impossible to remove the hydraulic cylinder for maintenance. While there are established outdoor lifting solutions on the market, there is still no effective lifting device to address this problem indoors, given the limited height space. Summary of the Invention

[0004] The utility model provides a hydraulic oil cylinder hoisting device for a working gate in a confined space at a ship lift lock head, which solves the problem of hoisting the hydraulic oil cylinder of the gate when the indoor hoisting space is limited.

[0005] In order to solve the above problems, it is proposed to adopt a hydraulic cylinder lifting device for the confined space working gate of the ship lift lock, which includes a lifting shaft device, a lifting connection device and a crane main hook lifting device. The lifting shaft device arranged horizontally replaces the crane main hook and is fixed to the lower end of the crane main hook lifting device. The lifting shaft device 1 includes a lifting shaft 11, and the lifting shaft 11 is installed in the mounting hole of the crane main hook mounting plate 13 at the lower end of the crane main hook lifting device 3. Lifting ear plates are respectively installed on both sides of the upper end of the hydraulic cylinder, and the two ends of the lifting shaft device are respectively hoisted and connected to the lifting ear plates on both sides of the hydraulic cylinder through the lifting connection device.

[0006] In the aforementioned hydraulic cylinder lifting device, the distance between the upper end of the hydraulic cylinder and the lifting shaft device is greater than or equal to 100 mm.

[0007] In the aforementioned hydraulic cylinder lifting device, the lifting shaft device includes a lifting shaft, a lifting shaft sleeve is provided in the middle of the lifting shaft, and a crane main hook mounting plate is respectively installed on the lifting shafts that fit the two ends of the lifting shaft sleeve, and a wire rope inner baffle and a wire rope outer baffle are sequentially provided on the lifting shafts outside the two crane main hook mounting plates from the inside to the outside, and a width for installing the wire rope is reserved between the wire rope inner baffle and the wire rope outer baffle on the same side, a threaded hole is opened perpendicular to the axial direction on the lifting shaft outside the wire rope outer baffle, and a locking threaded rod with both ends extending to the outside of the threaded hole is fixedly installed in the threaded hole to limit the wire rope outer baffle;

[0008] In the aforementioned hydraulic cylinder lifting device, the lifting connection device includes a lifting wire rope and a connecting clamp. The upper ends of the two lifting wire ropes are respectively mounted on the lifting shaft between the wire rope inner baffle and the wire rope outer baffle on both sides. The two connecting clamps are respectively connected to the lifting ear plates on both sides of the hydraulic cylinder. The lower ends of the two lifting wire ropes are respectively fixed on the two connecting clamps, so that the hydraulic cylinder is located directly below the lifting shaft device and between the two sets of lifting connection devices, and the distance between the hydraulic cylinder and the lifting shaft device is adjusted by adjusting the length of the lifting wire rope.

[0009] Compared with the prior art, the present invention has the following technical effects:

[0010] 1. By improving the entire set of hydraulic cylinder lifting devices and using the lifting shaft device to replace the existing indoor main crane hook, there is no need to modify the existing equipment. It is only necessary to remove the original main crane hook and install the lifting shaft device. This greatly shortens the distance between the lifting device and the hydraulic cylinder, and can effectively achieve safe and efficient lifting of the hydraulic cylinder under conditions of limited indoor space. It can avoid the high cost of demolishing the roof and renting large lifting equipment, reduce maintenance costs, and has great application prospects under conditions of limited indoor space.

[0011] 2. By setting inner and outer baffles for the wire rope on the lifting shaft device, and combining the different stress conditions of the inner and outer baffles of the wire rope during use, setting inner and outer baffles of the wire rope of different sizes, it is possible to effectively solve the problem of slipping caused by uneven stress on the wire rope during actual lifting, and avoid safety accidents.

[0012] 3. By providing a lifting shaft sleeve on the lifting shaft device, displacement of the main hook mounting plate of the crane can be avoided, thereby reducing the risk of safety accidents caused by displacement and deformation of the main hook mounting plate during the lifting process.

[0013] 4. By setting the entire set of hydraulic cylinder lifting devices as on-site splicing type, it can achieve rapid on-site disassembly and assembly, convenient transportation and storage, does not occupy driving resources for a long time, can be used for construction in multiple sites and multiple working conditions, and has certain versatility and convenience.

[0014] This technology has been put into practical application in the hydraulic cylinder of a large ship lift working gate with excellent results. It has important guiding significance and promotion value for other similar projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the lifting shaft device;

[0017] Figure 3 It is a schematic diagram of the overall structure of the lifting connection device;

[0018] Figure 4 This is a schematic diagram of the original main hook structure;

[0019] Figure 5 This is a schematic diagram of the indoor hydraulic cylinder and crane position;

[0020] Among them, the figure marks are: 1 represents a lifting shaft device, 11 represents a lifting shaft, 12 represents a lifting shaft sleeve, 13 represents a crane main hook mounting plate, 14 represents an inner baffle of a wire rope, 15 represents an outer baffle of a wire rope, 16 represents a locking threaded rod, 2 represents a lifting connection device, 21 represents a lifting wire rope, 22 represents a connecting clamp, 3 represents a crane main hook lifting device, 4 represents a hydraulic cylinder, 41 represents a lifting ear plate, and 5 represents a crane main hook. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0022] Example 1

[0023] Refer to the attached Figures 1 to 5 This embodiment improves the hydraulic cylinder lifting device for the working gate of the confined space at the head of the ship lift lock. The improved hydraulic cylinder lifting device for the working gate of the confined space at the head of the ship lift lock includes a lifting shaft device 1, a lifting connection device 2 and a crane main hook lifting device 3. The lifting shaft device 1 arranged horizontally replaces the crane main hook 5 and is fixed to the lower end of the crane main hook lifting device 3. Lifting ear plates 41 are respectively installed on both sides of the upper end of the hydraulic cylinder 4. The two ends of the lifting shaft device 1 are respectively hoisted and connected to the lifting ear plates 41 on both sides of the hydraulic cylinder 4 through the lifting connection device 2. The distance between the upper end of the hydraulic cylinder 4 and the lifting shaft device 1 is greater than or equal to 100 mm.

[0024] The lifting shaft device 1 includes a lifting shaft 11, a lifting shaft sleeve 12 is sleeved on the middle part of the lifting shaft 11, and a crane main hook mounting plate 13 is respectively installed on the lifting shaft 11 at both ends of the lifting shaft sleeve 12, and a wire rope inner baffle 14 and a wire rope outer baffle 15 are sleeved on the lifting shaft 11 outside the two crane main hook mounting plates 13 from the inside to the outside, and a width for installing the wire rope is reserved between the wire rope inner baffle 14 and the wire rope outer baffle 15 on the same side, and a threaded hole is opened perpendicular to the axial direction on the lifting shaft 11 outside the wire rope outer baffle 15, and a locking threaded rod 16 with both ends extending to the outside of the threaded hole is fixedly installed in the threaded hole to limit the wire rope outer baffle 15, and the baffle limits the displacement of the wire rope caused by the force. The wire rope inner baffle 14 and the wire rope outer baffle 15 can also be replaced by other axial limiting structures, such as welding a fixed limiting structure on the shaft;

[0025] The lifting connection device 2 includes a lifting wire rope 21 and a connecting clip 22. The upper ends of the two lifting wire ropes 21 are respectively mounted on the lifting shaft 11 between the wire rope inner baffle 14 and the wire rope outer baffle 15 on both sides. The two connecting clips 22 are respectively connected to the lifting ear plates 41 on both sides of the hydraulic cylinder 4. The lower ends of the two lifting wire ropes 21 are respectively fixed on the two connecting clips 22, thereby achieving the effect of lifting the hydraulic cylinder. The hydraulic cylinder 4 is located directly below the lifting shaft device 1 and between the two sets of lifting connection devices 2. The distance between the hydraulic cylinder 4 and the lifting shaft device 1 is adjusted by adjusting the length of the lifting wire rope 21.

[0026] The specific method of lifting using the above-mentioned ship lift lock confined space working gate hydraulic cylinder lifting device is as follows:

[0027] Step 1, installation: transport the hoisting shaft device 1 to the construction site, lower the large-tonnage crane main hook to the ground, disassemble the large-tonnage crane main hook 5, and then assemble the hoisting shaft device 1, including installing the hoisting shaft 11 in the mounting hole of the crane main hook mounting plate 13, passing the hoisting shaft sleeve 12 through the hoisting shaft 11 and installing it between the two crane main hook mounting plates 13, and sequentially installing the wire rope inner baffle 14, the wire rope outer baffle 15 and the locking threaded rod 16 at both ends of the hoisting shaft 11 to limit the displacement of the crane main hook mounting plate 13 and the wire rope outer baffle 15;

[0028] Step 2, connection: After the installation of the lifting shaft device 1 is completed, the lifting shaft device 1 is transported to the top of the hydraulic cylinder 4 by using a crane, and the lifting shaft device 1 is lowered to a suitable position. The lifting wire rope 21 is installed between the wire rope inner baffle 14 and the wire rope outer baffle 15 of the lifting shaft device 1. The two ends of the lifting wire rope 21 are connected to the large-tonnage connecting ring 22 and connected to the lifting ear plate 41 of the hydraulic cylinder 4;

[0029] Step 3, start: After the hydraulic cylinder hoisting device is fully installed, start the crane to slowly lift it to achieve the pre-tightening effect of the hoisting wire rope 21 and ensure that the hydraulic cylinder 4 is in a vertical state.

[0030] Step 4: Dismantling: Adjust the working door to the maintenance position and lock it with the locking device. Remove the lifting head of the piston rod of the hydraulic oil cylinder 4 and the connecting rod pin and accessories of the working door. Fully retract the piston rod of the hydraulic oil cylinder 4. Manually close the oil inlet and return ball valves of the upper and lower chambers of the hydraulic oil cylinder 4. Remove the oil inlet and return pipe joints and drain the remaining oil in the pipes. Remove the upper and lower chamber oil pipes of the hydraulic oil cylinder 4 and seal them with plugs. Remove the fixing bolts of the hinge seat of the hydraulic oil cylinder 4 and mark the positions.

[0031] Step 5: Lifting: Start the crane to drive the hydraulic cylinder lifting device to slowly lift the hydraulic cylinder 4. Finely adjust the position of the hydraulic cylinder 4 from the installation base to the ground through the crane;

[0032] Step 6. Dumping: Hoist the hydraulic cylinder 4 to an open area in the yard, place a tire at the lifting head of the piston rod of the hydraulic cylinder 4, slowly lower the hydraulic cylinder 4 until the piston rod lifting head contacts the tire, stack sleepers in the upper and lower cavities of the hydraulic cylinder 4 respectively, move along the direction of the cylinder body of the hydraulic cylinder 4 by adjusting the driving, and slowly lower the hydraulic cylinder lifting device to achieve horizontal dumping of the hydraulic cylinder 4, so as to carry out subsequent transportation and dismantling and repair work. Due to the symmetrical double-lifting ear structure, the horizontal dumping process can be more stable.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The hydraulic cylinder hoisting device for the confined space working gate of the ship lift lock is characterized by: The invention comprises a lifting shaft device (1), a lifting connection device (2) and a main hook lifting device (3). The lifting shaft device (1) arranged in a transverse direction replaces the main hook (5) and is fixed to the lower end of the main hook lifting device (3). The lifting shaft device (1) comprises a lifting shaft (11), and the lifting shaft (11) is installed in the mounting hole of the main hook mounting plate (13) at the lower end of the main hook lifting device (3). Lifting ear plates (41) are respectively installed on both sides of the upper end of the hydraulic oil cylinder (4). The two ends of the lifting shaft device (1) are respectively connected to the lifting ear plates (41) on both sides of the hydraulic oil cylinder (4) through the lifting connection device (2).

2. The hydraulic cylinder hoisting device for the confined space working gate of the ship lift lock according to claim 1 is characterized in that: The distance between the upper end of the hydraulic oil cylinder (4) and the hoisting shaft device (1) is greater than or equal to 100 mm.

3. The hydraulic cylinder hoisting device for the confined space working gate of the ship lift lock according to claim 1 is characterized in that: The hoisting shaft device (1) comprises a hoisting shaft (11), a hoisting shaft sleeve (12) is sleeved on the middle part of the hoisting shaft (11), a main hook mounting plate (13) is mounted on the hoisting shaft (11) at both ends of the hoisting shaft sleeve (12), a wire rope inner baffle (14) and a wire rope outer baffle (15) are sleeved on the hoisting shaft (11) outside the two main hook mounting plates (13) from inside to outside, and a width for installing a wire rope is reserved between the wire rope inner baffle (14) and the wire rope outer baffle (15) on the same side, a threaded hole is opened perpendicular to the axial direction on the hoisting shaft (11) outside the wire rope outer baffle (15), and a locking threaded rod (16) with both ends extending to the outside of the threaded hole is fixedly mounted in the threaded hole to limit the wire rope outer baffle (15).

4. The hydraulic cylinder hoisting device for the confined space working gate of the ship lift lock according to claim 3 is characterized in that: The hoisting connection device (2) comprises a hoisting steel wire rope (21) and a connecting clasp (22). The upper ends of the two hoisting steel wire ropes (21) are respectively sleeved on the hoisting shaft (11) between the steel wire rope inner baffle (14) and the steel wire rope outer baffle (15) on both sides. The two connecting clasp (22) are respectively connected to the hoisting ear plates (41) on both sides of the hydraulic oil cylinder (4). The lower ends of the two hoisting steel wire ropes (21) are respectively fixed to the two connecting clasp (22), so that the hydraulic oil cylinder (4) is located directly below the hoisting shaft device (1) and between the two sets of hoisting connection devices (2). The distance between the hydraulic oil cylinder (4) and the hoisting shaft device (1) is adjusted by adjusting the length of the hoisting steel wire ropes (21).

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