Angle encoder fixing device at bow door or stern door

Abstract

The utility model discloses a bow door or stern door angle encoder fixing device which comprises a hinge shaft arranged on a bow door or stern door, a connecting rod, an installation support and an elastic coupler, the connecting rod comprises a connecting rod, a sliding cylinder and a sliding rod, one end of the sliding rod extends into the sliding cylinder and is connected with the sliding cylinder in a sliding mode, and the other end of the sliding rod is connected with the installation support. The other end of the sliding rod is located outside the sliding cylinder and connected with the elastic coupler, the other end of the elastic coupler is connected with the angle encoder, one end of the connecting rod is fixedly connected with the end face of the end, away from the elastic coupler, of the sliding cylinder, and the other end of the connecting rod is connected with the hinge shaft. The angle encoder and the connecting rod are fixed on the mounting bracket; and the mounting bracket is fixedly connected with a ship body structure. The fixing device for the angle encoder at the bow door or the stern door not only can play a role of a conventional connecting rod, but also can be suitable for axial movement of a hinge shaft, so that the defect that a coupler is easy to snap can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ship roll-on / roll-off equipment, in particular to an angle encoder fixing device at the bow door or the stern door. Background Art

[0002] As the main channel equipment for vehicle and cargo loading and unloading on a roll-on / roll-off ship, the roll-on / roll-off passage system equipment of a roll-on / roll-off ship includes various complex electromechanical control equipment such as a bow door, a bow ramp, a stern ramp, a stern sloping ramp, a side ramp, a movable deck, a movable ramp, a ramp cover, an inner door, an outer door, a lifting platform, etc., and is an indispensable part of a roll-on / roll-off ship.

[0003] When the bow door or the stern door is lowered, there are working angle requirements, usually in the range of -15° to 10° with respect to the horizontal plane. If the use angle is exceeded, the bow door or the stern door will be damaged, and at this time, an angle encoder needs to be installed.

[0004] An angle encoder is a device that can measure the rotation angle of an object, and can convert the rotational mechanical motion into an electrical signal, so as to realize the measurement and control of the rotation angle. The installation and fixation of the angle encoder are very important.

[0005] During the opening and closing operation of the stern door or the bow door by a conventional angle encoder, the hinge shaft rotates relative to the ship's hull, and the connecting rod and the elastic coupling will rotate accordingly, thereby generating a signal on the angle encoder, which can sense and monitor the rotation angle of the ramp in real time to achieve PLC operation.

[0006] However, due to the small adaptation range of the elastic coupling, once there is a deviation in the concentricity between the angle encoder and the hinge shaft of the ramp, the coupling is easily damaged. At the same time, due to the swaying of the ship during navigation, the distance between the hinge shaft and the encoder will also change dynamically, and the coupling is easily broken. Content of the Utility Model

[0007] To solve the above technical problems, the utility model provides an angle encoder fixing device at the bow door or the stern door, which can not only play the role of a conventional connecting rod, but also be applicable to the axial movement of the hinge shaft, thereby effectively avoiding the drawback that the coupling is easily broken.

[0008] To achieve the above purpose, the utility model is realized through the following technical solutions:

[0009] An angular encoder fixing device at the bow door or stern door, comprising a hinge shaft, a connecting rod, a mounting bracket and an elastic coupling arranged on the bow door or stern door. The connecting rod includes a connecting rod, a sliding cylinder and a sliding rod. One end of the sliding rod extends into the sliding cylinder and is slidably connected to the sliding cylinder. The other end of the sliding rod is located outside the sliding cylinder and is connected to the elastic coupling. The other end of the elastic coupling is connected to the angular encoder. One end of the connecting rod is fixedly connected to the end face of the sliding cylinder away from the elastic coupling, and the other end of the connecting rod is connected to the hinge shaft. The angular encoder and the connecting rod are fixed on the mounting bracket, and the mounting bracket is fixedly connected to the hull structure.

[0010] Further, the sliding cylinder is provided with a hollow structure extending from one end close to the elastic coupling to the other end. The length of the hollow structure is less than the length of the sliding cylinder. On both sides of the hollow structure, sliding grooves communicating with the hollow structure are symmetrically arranged. One end of the sliding groove close to the elastic coupling is within the range of the hollow structure. The sliding rod includes a sliding rod body. At one end of the sliding rod body away from the elastic coupling, a fixing pin perpendicular to it is provided. The sliding rod body extends into the hollow structure, and both ends of the fixing pin pass through the two sliding grooves respectively and are slidably connected to the sliding grooves.

[0011] Further, the length of the sliding groove is less than the length of the hollow structure, and one end of the sliding groove away from the elastic coupling is within the range of the hollow structure.

[0012] Further, a plurality of bolt holes are circumferentially arranged on the outer periphery of the mounting bracket on the side close to the bow door. Opposite bolt holes are provided on the hinge eye plate on the outer peripheral side of the hinge shaft. When positioning the mounting bracket, the mounting bracket and the hinge eye plate are connected by bolts. After the mounting bracket and the hull are welded and fixed, the positioning bolts are removed and the bracket and the eye plate are separated.

[0013] Further, a through hole penetrating radially along the sliding rod body is provided on the sliding rod body. The fixing pin passes through the through hole and is fixedly connected to the sliding rod body.

[0014] For the angular encoder fixing device at the bow door or stern door of the present utility model, the novel connecting rod can not only play the role of a conventional connecting rod, but also adapt to the axial movement of the hinge shaft. It can accurately feedback the rotation angle and will not cause the phenomenon of the coupling being pulled and damaged. When positioning the mounting bracket, the mounting bracket and the hinge eye plate are fixed together by bolts, ensuring accurate concentricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the state when the angular encoder fixing device at the bow door or stern door of the present utility model is installed;

[0016] Figure 2 is a schematic structural diagram of the sliding rod of the present utility model;

[0017] Figure 3 is a schematic structural view of the sliding cylinder described in the present utility model;

[0018] Figure 4 is a schematic structural view of the sliding rod in the retracted state in the connecting rod described in the present utility model;

[0019] Figure 5 is a schematic structural view of the sliding rod in the maximum extended state in the connecting rod described in the present utility model.

[0020] Among them, 1 - hinge shaft, 2 - connecting rod, 3 - mounting bracket, 4 - elastic coupling, 5 - angle encoder, 6 - bolt, 21 - connecting rod, 22 - sliding cylinder, 23 - sliding rod, 221 - hollow structure, 222 - chute, 231 - sliding rod body, 232 - fixing pin, 2311 - through hole. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0022] As Figures 1-4 shown, an angle encoder fixing device at the bow door or stern door includes a hinge shaft 1, a connecting rod 2, a mounting bracket 3 and an elastic coupling 4 provided on the bow door or stern door. The connecting rod 2 includes a connecting rod 21, a sliding cylinder 22 and a sliding rod 23. One end of the sliding rod 23 extends into the sliding cylinder 22 and is slidably connected to the sliding cylinder 22. The other end of the sliding rod 23 is located outside the sliding cylinder 22 and is connected to the elastic coupling 4. The other end of the elastic coupling 4 is connected to the angle encoder 5. One end of the connecting rod 21 is fixedly connected to the end face of the sliding cylinder 22 away from the elastic coupling 4, and the other end of the connecting rod 21 is connected to the hinge shaft 1; the angle encoder 5 and the connecting rod 2 are fixed on the mounting bracket 3, and the mounting bracket 3 is fixedly connected to the hull structure.

[0023] The sliding cylinder 22 is provided with a hollow structure 221 extending from one end close to the elastic coupling 4 to the other end. The length of the hollow structure 221 is less than the length of the sliding cylinder 22. On both sides of the hollow structure 221, sliding grooves 222 communicating with the hollow structure 221 are symmetrically formed. The length of the sliding groove 222 is less than the length of the hollow structure 221. Both ends of the sliding groove 222 are within the length range of the hollow structure 221. The sliding rod 23 includes a sliding rod body 231. A through hole 2311 penetrating radially is formed at one end of the sliding rod body 231 away from the elastic coupling 4. A fixing pin 232 passes through the through hole 2311 and is fixedly connected perpendicular to the sliding rod body 231. The sliding rod body 231 extends into the hollow structure 221. Both ends of the fixing pin 232 pass through the two sliding grooves 222 respectively and are slidably connected with the sliding grooves 222.

[0024] A plurality of bolt holes are formed in the outer circumference of the mounting bracket 3 on the side close to the bow door. Bolt holes are oppositely provided on the hinge eye plate on the outer peripheral side of the hinge shaft 1. When positioning the mounting bracket 3, the mounting bracket 3 and the hinge eye plate are connected by bolts 6. After the mounting bracket 3 and the hull are welded and fixed, the positioning bolts 6 are removed, and the bracket and the eye plate are separated.

[0025] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for fixing an angle encoder at a bow door or a stern door, characterized in that: It includes a hinge shaft, a connecting rod, a mounting bracket and an elastic coupling arranged on the bow door or the stern door, the connecting rod includes a connecting rod, a sliding cylinder and a sliding rod, one end of the sliding rod extends into the sliding cylinder and is slidably connected to the sliding cylinder, the other end of the sliding rod is located outside the sliding cylinder and is connected to the elastic coupling, the other end of the elastic coupling is connected to an angle encoder, one end of the connecting rod is fixedly connected to an end surface of the sliding cylinder away from the elastic coupling, and the other end of the connecting rod is connected to the hinge shaft; the angle encoder and the connecting rod are fixed on the mounting bracket, and the mounting bracket is fixedly connected to the hull structure.

2. The device for fixing an angle encoder at a bow door or a stern door according to claim 1, characterized in that: The sliding cylinder is provided with a hollow structure extending from one end close to the elastic coupling to the other end, the length of the hollow structure is less than the length of the sliding cylinder, and sliding grooves connected to the hollow structure are symmetrically opened on both sides of the hollow structure, and the end of the sliding groove close to the elastic coupling is located within the range of the hollow structure. The sliding rod includes a sliding rod body, and a fixing pin vertically arranged thereon is provided at the end of the sliding rod body away from the elastic coupling. The sliding rod body extends into the hollow structure, and two sliding grooves are respectively passed through the two ends of the fixing pin, which are slidably connected to the sliding grooves.

3. The device for fixing an angle encoder at a bow door or a stern door according to claim 2, characterized in that: The length of the slide groove is smaller than the length of the hollow structure, and one end of the slide groove away from the elastic coupling is located within the range of the hollow structure.

4. The device for fixing an angle encoder at a bow door or a stern door according to claim 3, characterized in that: A plurality of bolt holes are provided on the outer circumference of the mounting bracket close to the bow door, and bolt holes are provided on the hinge eye plate on the outer circumference of the hinge shaft. When positioning the mounting bracket, the mounting bracket and the hinge eye plate are connected by bolts. After the mounting bracket and the hull are welded and fixed, the positioning bolts are removed to separate the bracket and the eye plate.

5. The device for fixing an angle encoder at a bow door or a stern door according to claim 2, characterized in that: The sliding rod body is provided with a through hole which penetrates in the radial direction thereof, and the fixing pin passes through the through hole and is fixedly connected with the sliding rod body.

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