Container ship guide rail straightness detection method
By designing the wire wrap and fixed end tooling suitable for the guide rail, and using magnets and motors to achieve automatic tightening of the wire rope, the problems of low accuracy and waste of working hours in the existing guide rail straightness detection methods are solved, and efficient and accurate detection is achieved.
Patent Information
- Application Number
- CN202411873833.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-04-25
AI Technical Summary
The existing guide rail straightness detection methods have problems such as waste of personnel, manual fixation is prone to deviation, and cumbersome detection, resulting in low detection accuracy and waste of labor hours.
A method for detecting the linearity of the container ship guide rail is designed, using tooling at the wrap end and fixed end, and the wire rope is tightened by magnet adsorption and motor-driven driving the wire rope to form a detection reference, and the linearity deviation of the guide rail is determined by using manual top ruler measurement.
The accuracy of the linearity detection of the guide rail is improved, and the random deviation of the measuring personnel is reduced. One person can complete the detection and save working hours.
Smart Images
Figure CN119879699A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of marine ship design and construction, and in particular relates to a method for detecting the straightness of a guide rail of a container ship. Background Art
[0002] The guide rail is a track limiting device installed on the transverse bulkhead of the cargo hold, extending from the upper edge of the hatch coaming panel of the transverse bulkhead to the bottom of the cargo hold, and is used for the container to move up and down in the hold and in and out of the cargo hold.
[0003] The guide rail is composed of two 150mm angle steels arranged opposite to each other, with several 30mm thick iron clamps (steel blocks) sandwiched in between. The steel blocks and the angle steels are welded to form a whole. Weld a certain number of reinforcement plates, and weld the reinforcement bracket to the wall plate. During the production stage of the guide rail, due to the clamping iron welding and reinforcement welding, a certain welding shrinkage will occur, resulting in deviation of the straightness of the guide rail, which will affect the level and flatness of the guide rail after installation. It is necessary to detect it during the installation stage of the guide rail, and the deviation must be repaired in time. The guide rail is installed on the transverse wall of the container ship. The guide rail straightness needs to be strictly controlled during the production and installation stage, with a tolerance of ±2mm. The inspection requires a rope to be fixed at both ends of the guide rail. After determining the exact position of the rope to the two right-angled sides of the guide rail, the rope is tightened. The inspector uses a ruler to measure the distance from the rope to the two right-angled sides of the guide rail with the tightened rope as the reference. The difference between the measured distance and the set distance is the guide rail deviation value. The existing detection method has the following problems: 1. The inspector needs to fix it at both ends. Two additional people are needed to fix it at both ends first, which wastes the cooperation time of personnel; 2. The manual fixing process of people on both sides is prone to deviation, resulting in inaccurate detection data; 3. The manual workload of detection is large and the detection work is cumbersome. It is necessary to make a guide rail straightness detection tool suitable for the guide rail manufacturing stage, which can be directly fixed on both ends of the guide rail and the inspection personnel can directly detect it. Summary of the invention
[0004] In order to solve the above problems, the present invention provides a method for detecting the straightness of a guide rail of a container ship, and the technical solution adopted is: A method for detecting the straightness of a guide rail of a container ship comprises a wire winding end and a fixed end, wherein the wire winding end and the fixed end are respectively located at two ends of the guide rail.
[0005] The fixed end is provided with a fixed base plate, magnets are arranged on the edges of two adjacent sides of the fixed base plate, a fixed card plate is arranged on the fixed base plate, and the fixed card plate is formed by three straight sections connected in sequence. The straight section in the middle forms an obtuse angle with the straight sections at both ends, and the straight sections at both ends are perpendicular to the edge of the fixed base plate with magnets and extend to the outside of the fixed base plate, and a fixed eye plate and a wire hole are arranged on the fixed base plate.
[0006] The wire winding end is provided with a wire winding base plate, a wire winding shaft is fixed at the center of the wire winding base plate, a ratchet is fixed at the top of the wire winding shaft, magnets and fixed clamping plates are provided at the edges of two adjacent sides of the wire winding base plate, the fixed clamping plates are perpendicular to the edges of the wire winding base plate, one of the fixed clamping plates is connected to a limit plate, the limit plate is hinged to the fixed clamping plate, when the limit plate is lowered, the ratchet is clamped, and a wire hole is provided on the wire winding base plate.
[0007] The fixed end and the winding end are respectively clamped at the two ends of the guide rail through their respective fixed clamping plates, and the magnet is adsorbed on the guide rail. One end of the rope is fixed on the fixed eye plate of the fixed end, and the other end passes through the wire hole and is stretched to the opposite winding end. The end of the rope passes through the wire hole on the winding end and is wound on the winding shaft. The winding shaft is connected to a motor, which drives the winding rope to tighten the rope. The tightened rope becomes the guide rail straightness detection benchmark. The distance between the benchmark line and the guide rail surface is measured by manually using a ruler at different positions to determine the guide rail straightness deviation.
[0008] In the above container ship guide rail straightness detection method, further, the motor is fixed to the side of the wire winding bottom plate through a motor fixing plate.
[0009] The above-mentioned method for detecting the straightness of the guide rails of a container ship further comprises: one corner of the fixed bottom plate and the wire winding bottom plate is an arc-shaped corner, the wire hole is located at the arc-shaped corner, and the shape of the wire hole is 1 / 4 circle.
[0010] In the above container ship guide rail straightness detection method, further, the motor has a remote control component, and the remote control component is connected to an external remote control signal.
[0011] In the above container ship guide rail straightness detection method, further, when the limit plate is placed horizontally, it is stuck on the edge of the ratchet.
[0012] In the above container ship guide rail straightness detection method, further, the fixed eye plate is located on the inner side of the fixed clamping plate on the fixed bottom plate.
[0013] The present invention can improve the accuracy of guide rail straightness detection and avoid random deviations caused by measurement personnel during detection. One person can detect the straightness of the guide rail, saving work hours compared with before. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure when viewed from the front of the fixed end; Figure 2 is a schematic diagram of the fixed end side view structure; Figure 3 It is a schematic diagram of the structure when the winding end is viewed from the front; Figure 4 It is a schematic diagram of the structure of the winding end from the side; Figure 5 Is to use the schematic diagram; Among them, 1-guide rail, 2-fixed bottom plate, 3-fixed vertical plate, 4-fixed clamping plate, 5-magnet, 7-limiting plate, 8-ratchet, 9-winding spool, 10-motor, 11-motor fixing plate, 12-battery, 13-remote control component, 14-fixed eye plate, 2-1-wire hole, 2-2-wire. DETAILED DESCRIPTION
[0015] The present invention will be further described in conjunction with the accompanying drawings.
[0016] A method for detecting the straightness of a guide rail of a container ship comprises a wire winding end and a fixed end, wherein the wire winding end and the fixed end are respectively located at two ends of the guide rail.
[0017] like Figure 1 , 2 As shown, the fixed end is provided with a fixed base plate, magnets are provided on the edges of two adjacent sides of the fixed base plate, and a fixed clamping plate is provided on the fixed base plate. The fixed clamping plate is formed by three straight sections connected in sequence, and the straight section in the middle forms an obtuse angle with the straight sections at both ends. The straight sections at both ends are perpendicular to the edge of the fixed base plate with the magnet and extend to the outside of the fixed base plate. A fixed eye plate and a wire hole are provided on the fixed base plate.
[0018] like Figure 3 , 4 As shown, the wire winding end is provided with a wire winding base plate, a wire winding shaft is fixed at the center of the wire winding base plate, a ratchet is fixed at the top of the wire winding shaft, magnets and fixed clamping plates are provided at the edges of two adjacent sides of the wire winding base plate, the fixed clamping plates are perpendicular to the edges of the wire winding base plate, one of the fixed clamping plates is connected to a limit plate, the limit plate is hinged to the fixed clamping plate, and a wire hole is provided on the wire winding base plate.
[0019] like Figure 5 As shown, the two sets of tooling are symmetrically arranged, the fixed end and the winding end are respectively clamped at the two ends of the guide rail through their own fixed clamping plates, the magnet is adsorbed on the guide rail, one end of the rope is fixed on the fixed eye plate of the fixed end, and the other end passes through the wire hole and is stretched to the opposite winding end, the end of the rope passes through the wire hole on the winding end and is wound on the winding shaft, the winding shaft is connected to a motor, the motor drives the winding rope, so as to tighten the rope, and the tightened rope becomes the guide rail straightness detection reference, and the distance between the reference line and the guide rail surface is measured by manually using a ruler at different positions to determine the guide rail straightness deviation.
[0020] Magnets are used to absorb the guide rail angle steel. A fixed plate is set on the tooling vertical plate. The fixed clamp protrudes out of the bottom plate. The inner opening width of the fixed clamp is 16mm (1mm larger than the 15mm thick angle steel). The inner opening width of the fixed clamp is larger than the plate thickness of the angle steel profile used for the guide rail. The tooling is firmly fixed to the guide rail through the fixed clamp. Between the two toolings, the wire rope passes through the wire hole and is stretched toward the opposite tooling. A winding shaft is set at the winding end. The winding shaft drives the winding wire rope through the motor output end, thereby tightening the wire rope between the fixed end and the winding end.
[0021] A remote control component is set at the wire winding end of the tooling. The motor rotation direction and speed are controlled by the remote control, thereby tightening the connection between the tooling. The tightened connection becomes the reference for guide rail straightness detection. The distance between the reference line and the guide rail surface is measured manually with a ruler at different positions to determine the guide rail straightness deviation.
[0022] A DC motor is installed on the panel of the winding end. The motor speed is moderate and matches the manual walking speed. The operator can control the winding device automatically by remote control.
[0023] The threading hole is a 1 / 4 circular hole. The wire rope passes through the closed 1 / 4 circular hole. After being tightened, the wire rope will stick to the corner point. The distance from the right angle corner point of the hole to the right angle side of the tooling is the same. This can ensure that the right angle sides of the guide rail are at equal distances after the wire rope is tightened. The wire rope passes through the rope hole without falling off or offsetting. When measuring, tighten the wire rope for detection.
[0024] Batteries, remote control components and motors are installed at the wire winding end. The operator controls the wire winding work through the remote control and the shaft is automatically completed. During inspection, one person can complete the inspection, saving work hours.
[0025] When the motor is about to wind the line tight, tighten the line by manually adjusting the ratchet, rotate the limit plate, press it against the ratchet teeth, and keep the line taut.
Claims
1. A method for detecting the straightness of a container ship rail, characterized in that: It includes a winding end and a fixed end, and the winding end and the fixed end are respectively located at two ends of the guide rail; The fixed end is provided with a fixed bottom plate, magnets are arranged at the edges of two adjacent sides of the fixed bottom plate, a fixed card plate is arranged on the fixed bottom plate, the fixed card plate is formed by connecting three straight sections in sequence, the straight section in the middle forms an obtuse angle with the straight sections at both ends, the straight sections at both ends are perpendicular to the edge of the fixed bottom plate with magnets, and extend to the outside of the fixed bottom plate, and a fixed eye plate and a wire hole are arranged on the fixed bottom plate; The wire winding end is provided with a wire winding bottom plate, a wire winding shaft is fixed at the center of the wire winding bottom plate, a ratchet is fixed at the top of the wire winding shaft, magnets and fixed card plates are arranged at the edges of two adjacent sides of the wire winding bottom plate, the fixed card plates are perpendicular to the edges of the wire winding bottom plate, one of the fixed card plates is connected to a limit plate, the limit plate is hinged to the fixed card plate, when the limit plate is lowered, the ratchet is clamped, and a wire hole is arranged on the wire winding bottom plate; The fixed end and the winding end are respectively clamped at the two ends of the guide rail through their respective fixed clamping plates, and the magnet is adsorbed on the guide rail. One end of the rope is fixed on the fixed eye plate of the fixed end, and the other end passes through the wire hole and is stretched to the opposite winding end. The end of the rope passes through the wire hole on the winding end and is wound on the winding shaft. The winding shaft is connected to a motor, which drives the winding rope to tighten the rope. The tightened rope becomes the guide rail straightness detection benchmark. The distance between the benchmark line and the guide rail surface is measured by manually using a ruler at different positions to determine the guide rail straightness deviation.
2. A container ship guide rail straightness detection method according to claim 1, characterized in that: The motor is fixed on the side of the wire winding bottom plate through a motor fixing plate.
3. A container ship guide rail straightness detection method according to claim 1, characterized in that: One corner of the fixed bottom plate and the wire winding bottom plate is an arc-shaped corner, the wire hole is located at the arc-shaped corner, and the shape of the wire hole is 1 / 4 circle.
4. A container ship guide rail straightness detection method according to claim 1, characterized in that: The motor is provided with a remote control component, and the remote control component is connected with an external remote control signal.
5. A container ship guide rail straightness detection method according to claim 1, characterized in that: When the limit plate is placed horizontally, it is stuck on the edge of the ratchet.
6. A container ship guide rail straightness detection method according to claim 1, characterized in that: The fixed eye plate is located on the inner side of the fixed clamping plate on the fixed bottom plate.