Novel springboard angle detection device

Abstract

The utility model discloses a novel springboard angle detection device, which comprises a springboard connecting plate, a large gear ring and a fixedly arranged encoder body, the rotation axis of the large gear ring and the rotation axis of the springboard connecting plate are coaxially arranged, and the inner side of the large gear ring is in meshed connection with a pinion. The small gear is connected with a detection shaft of the encoder body and drives the detection shaft to rotate, and the encoder obtains the rotation angle of the small gear and converts the rotation angle to obtain the overturning angle of the springboard. The novel springboard angle detection device is installed between the springboard connecting plate and the speed reducer, is small in size, improves the space utilization rate of the springboard, and does not interfere with a channel above the springboard. A mechanical transmission mode is adopted, the structure is simple and stable, machining is easy and convenient, bolt connection is adopted, replacement is convenient, and data are accurate. By means of the swing arm structure, angle rotation measurement can be kept all the time when relative axial or radial displacement occurs between the large gear ring and the encoder body, and the phenomenon that the large gear ring is separated from the small gear during relative movement is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of marine gangways, in particular to a novel gangway angle detection device. Background Technique

[0002] At present, since ships work in harsh environments such as humidity and salt spray all year round, marine gangways are usually made of corrosion-resistant materials, such as stainless steel and aluminum alloy. These materials can effectively resist seawater corrosion and oxidation, ensuring the service life of the gangway. The structural design of the marine gangway needs to consider its load-bearing capacity, stability and flexibility. The marine gangway is not only used to provide a passage for personnel to walk, but also needs to have functions such as anti-slip and anti-sand accumulation. In addition, the detection of the turning angle of the marine gangway is an important part to ensure the safe operation of the ship. During the actual detection process, the situation of vehicles frequently entering and leaving on the gangway also needs to be considered to ensure that the installation of accessories will not affect the passage space, anti-collision, etc. Different ships and gangway characteristics may require different detection methods, so it needs to be selected and optimized according to the specific situation in actual applications.

[0003] At present, the existing gangway detection devices disclosed in combination with the prior patent literature have the following defects:

[0004] Common magnetic proximity switch measurement. Among them, the magnetic proximity switch has a reed switch contact built-in and is sealed with an inert gas in a glass cover. When affected by a magnetic field, the magnetic attraction causes the reed switch to bend and contact each other, transmitting a switch signal to cause an electrical contact. The characteristic is that the contact can well prevent dust, oxidation and corrosion, and is activated by a magnetic field rather than mechanical components. However, it is usually only used for the monitoring of a certain specified angle and cannot continuously measure. In addition, due to the magnetic field range factor of the magnet, the position detection may not be accurate enough.

[0005] Secondly, a variable resistor is combined with a detection rod. The detection rod is hinged to the hull through a pin shaft and is located below the gangway. One end of the detection rod is fixedly connected to the contact of the variable resistor, and the contact slides against the variable resistor. The other end of the detection rod is hinged with a roller, and a magnet is provided on the roller, which can roll and adsorb on the lower side of the gangway. The characteristic is that it can automatically detect the inclination angle of the gangway and is convenient and reliable to use. The disadvantages are high cost, and at the same time, after long-term use, the deformation of the detection rod and the reduction of the magnetic force of the magnet may cause inaccurate angle measurement.

[0006] Moreover, the existing angle detection devices are usually fixedly arranged, and since transport vehicles often pass over the marine gangway, certain radial and axial displacements will occur during use, which is likely to have a certain impact on the detection of the angle detection device.

[0007] In summary, controlling the flipping angle of the ship's gangway is of great significance for ensuring the safety and stability of the ship, improving the efficiency of passengers and goods getting on and off the ship, and reducing maintenance costs. In view of the above, it is necessary to propose a new type of gangway angle detection device to solve the above problems. Summary of the Invention

[0008] The purpose of the present utility model is to overcome the defects existing in the prior art and provide a new type of gangway angle detection device.

[0009] To achieve the above purpose, the technical solution of the present utility model is as follows: A new type of gangway angle detection device includes a gangway connecting plate, and also includes a large gear ring. The large gear ring is coaxially arranged with the rotation axis of the gangway connecting plate. A small gear is meshed and connected inside the large gear ring. It also includes a fixedly arranged encoder body. The small gear is connected to the detection shaft of the encoder body and drives it to rotate. The encoder obtains the rotation angle of the small gear and converts it to obtain the flipping angle of the gangway.

[0010] Further, the encoder body is arranged on an encoder bracket. The encoder bracket is in the shape of a portal frame. Installation plates are provided at both ends of the encoder bracket. Installation holes are provided on the installation plates. The encoder bracket is installed on a speed reducer.

[0011] Further, an annular plate is formed on the outer circle of the large gear ring. A number of flange holes are distributed on the annular plate. The large gear ring is fixed on the gangway connecting plate through the flange holes.

[0012] Further, the number of teeth of the large gear ring is 171, the number of teeth of the small gear is 23, and the module is 3.

[0013] Further, it also includes a swing arm structure. The swing arm structure is used to adjust and adapt to the axial relative movement and / or radial relative movement between the large gear ring and the encoder body. The swing arm structure includes a swing arm frame. The rotating end of the swing arm frame rotates around the axis of the detection shaft of the encoder body. A small gear is rotatably arranged at the swinging end of the swing arm frame. And the whole swing arm structure is slidably connected along the axis direction of the detection shaft. The sliding of the swing arm structure is configured to be driven by the relative displacement of the large gear ring and the encoder body in the axis direction. The rotation of the swing arm structure is configured to be driven by the change in the distance between the detection shaft and the inner circle of the large gear ring.

[0014] Further, the swing arm structure also includes an elastic mechanism. The elastic mechanism is arranged so that the swinging end always has a tendency to approach the large gear ring.

[0015] Further, a rotating sleeve structure is provided at the rotating end. The inner ring of the rotating sleeve structure is in the shape of a spline sleeve, the end of the detection shaft forms a spline shaft, and the rotating sleeve structure is spline-connected to the detection shaft. A linkage part is formed in the middle of the outer wall of the rotating sleeve structure, and rotating groove parts are formed at both ends of the linkage part. Two rotating rings are provided at the rotating end, and the two rotating rings are respectively rotatably connected to the rotating groove parts.

[0016] Further, a synchronous chain is connected between the small gear and the linkage part.

[0017] A detection method for a novel springboard angle detection device includes the following steps:

[0018] Step S10: The springboard flips, and the flipping of the springboard drives the large gear ring fixed on the springboard connecting plate to rotate;

[0019] Step S20: The large gear ring drives the encoder small gear to rotate through gear transmission;

[0020] Step S30: The rotation of the small gear drives the encoder detection shaft to rotate;

[0021] Step S40: The encoder obtains the rotation angle of the encoder small gear;

[0022] Step S50: After conversion, the accurate flipping angle of the springboard is obtained.

[0023] The advantages and beneficial effects of the present utility model are as follows: 1. This novel springboard angle detection device is installed between the springboard connecting plate and the reducer, with a small volume, improving the space utilization rate of the springboard and having no interference with the passage above the springboard.

[0024] 2. Adopting a mechanical transmission method, the structure is simple and stable, the processing is simple, bolt connection is used, it is convenient to replace, and the data is accurate.

[0025] 3. The process is simple, the operation is convenient, it is automatically completed, with low cost and high efficiency.

[0026] 4. By using the swing arm structure, when relative axial or radial displacement occurs between the large gear ring and the encoder body, the angle rotation measurement can always be maintained, avoiding the phenomenon that the large gear ring and the small gear are disengaged during relative movement. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of Embodiment 1 of a novel springboard angle detection device of the present utility model;

[0028] Figure 2 is a detection flow chart of a novel springboard angle detection device of the present utility model;

[0029] Figure 3Is the axonometric view of the second embodiment of a new type of springboard angle detection device of the present utility model Figure 1 ;

[0030] Figure 4 Is the axonometric view of the second embodiment of a new type of springboard angle detection device of the present utility model Figure 2 ;

[0031] Figure 5 Is the exploded view of the second embodiment of a new type of springboard angle detection device of the present utility model;

[0032] In the figure: 1. Springboard connecting plate; 2. Large gear ring; 3. Small gear; 4. Encoder body; 5. Detection shaft; 6. Encoder bracket; 7. Mounting plate; 8. Mounting hole; 9. Ring plate; 10. Flange hole; 11. Swing arm structure; 12. Swing arm frame; 13. Rotating end; 14. Oscillating end; 15. Elastic mechanism; 16. Rotating sleeve structure; 17. Spline sleeve; 18. Spline shaft; 19. Rotating groove part; 20. Rotating ring; 21. Synchronous chain; 22. Linking part; 23. Upper pressure plate; 24. Side wing plate; 25. Shaft rod; 26. Roller; 27. Spring. Specific implementation mode

[0033] The following combines the drawings and embodiments to further describe the specific implementation mode of the present utility model. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0034] Embodiment 1:

[0035] As a bridge connecting a ship with a dock or other ships, the flipping angle of a ship's springboard directly affects the safe boarding and alighting of passengers and goods. An appropriate flipping angle can ensure the smooth transition of passengers and goods and avoid accidents such as slipping and falling caused by too large an angle. An appropriate flipping angle can facilitate the boarding and alighting of passengers and goods. If the flipping angle is too small or too large, it may increase the difficulty and time consumption of boarding and alighting. By precisely controlling the flipping angle of the springboard, passengers and goods can easily and quickly complete the boarding and alighting process, improving the operation efficiency of the ship.

[0036] A new type of springboard angle detection device of the present utility model, as Figure 1 shown, includes a springboard connecting plate 1, and also includes a large gear ring 2. The large gear ring 2 is coaxially arranged with the rotation axis of the springboard connecting plate 1. A small gear 3 is meshed and connected inside the large gear ring 2. It also includes a fixedly arranged encoder body 4. The small gear 3 is connected to the detection shaft 5 of the encoder body 4 and drives it to rotate. The encoder obtains the rotation angle of the small gear 3 and converts it to obtain the flipping angle of the springboard.

[0037] Specifically, the encoder body 4 is disposed on the encoder bracket 6. The encoder bracket 6 is in the shape of a portal frame and is used to fix the encoder body 4. Both ends of the encoder bracket 6 are provided with mounting plates 7, and the mounting plates 7 are provided with mounting holes 8. There are multiple mounting holes 8 on each mounting plate 7. The mounting holes 8 are in the shape of slotted holes, and the encoder bracket 6 is mounted on the speed reducer, thereby completing the fixation of the angle detection device.

[0038] In this embodiment, as Figure 1 shown, the pinion 3 is directly mounted on the detection shaft 5 of the encoder body 4. Thus, when the pinion 3 rotates, its rotation angle can be directly detected by the encoder body 4. In actual use, when the speed reducer controls the turning of the springboard, the large gear ring 2 can be rotated simultaneously. Specifically, an annular plate 9 is formed on the outer ring of the large gear ring 2, and a number of flange holes 10 are distributed on the annular plate 9. The large gear ring 2 is fixed on the springboard connecting plate 1 through the flange holes 10. When the large gear ring 2 rotates, due to the meshing connection between the large gear ring 2 and the pinion 3, the large gear ring 2 drives the pinion 3 to rotate. At this time, the rotation angle of the pinion 3 can be collected by the encoder body 4, and then the actual turning angle of the springboard can be obtained after being converted by the processor.

[0039] Furthermore, the number of teeth of the large gear ring 2 is 171, the number of teeth of the pinion 3 is 23, and the module is 3.

[0040] Specifically, as Figure 2 shown, the detection method of this new type of springboard angle detection device includes the following steps:

[0041] Step S10: The springboard turns, and the turning of the springboard drives the large gear ring 2 fixed on the springboard connecting plate 1 to rotate;

[0042] Step S20: The large gear ring 2 drives the encoder pinion 3 to rotate through gear transmission;

[0043] Step S30: The rotation of the pinion 3 drives the encoder detection shaft 5 to rotate;

[0044] Step S40: The encoder obtains the rotation angle of the encoder pinion 3;

[0045] Step S50: After conversion, the accurate turning angle of the springboard is obtained;

[0046] Embodiment Two:

[0047] During actual use, since the gangplank structure is suspended in the middle in the hull structure and its two ends are respectively lapped on the dock and the hull, and the gangplank is used frequently, with goods and vehicles passing through it frequently, the gangplank will undergo certain deformation. When transmitted to the end of the gangplank connecting plate 1, it will be manifested as a pulling torque moving radially or a change moving axially, thereby causing an axial slip misalignment between the large gear ring 2 and the small gear 3, or a change in radial movement between the two gears, resulting in extrusion or separation between the two gears, thus causing inaccurate angle measurement and even damaging the measuring device.

[0048] As an improvement, the swing arm structure 11 is further included in this embodiment, as Figures 3 - 5 shown. The swing arm structure 11 is used to adjust and adapt to the axial relative movement and / or radial relative movement between the large gear ring 2 and the encoder body 4; in this embodiment, the detection shaft 5 of the encoder body 4 is improved to be in the shape of a spline shaft 18, so as to provide a space for axial sliding for the swing arm structure 11, and by using the meshing effect of the spline sleeve 17 and the spline shaft 18, the rotation can be transmitted to the encoder body 4, so that the measurement of angular rotation can be carried out. And because the space for axial slip is provided for the swing arm structure 11, a redundant space is provided for the mutual axial movement between the large gear ring 2 and the encoder body 4.

[0049] Specifically, the swing arm structure 11 includes a swing arm frame 12. The rotating end 13 of the swing arm frame 12 is rotatably arranged with the axis of the detection shaft 5 of the encoder body 4 as the axis, and a small gear 3 is rotatably arranged at the swinging end 14 of the swing arm frame 12. In this embodiment, the connection method of the small gear 3 is the same as that in the first embodiment, both are meshing-connected inside the large gear, and are used to transmit the change of the angle; and the whole swing arm structure 11 is slidably connected along the axis direction of the detection shaft 5. According to the foregoing principle, specifically, the rotating end 13 is provided with a rotating sleeve structure 16. The inner ring of the rotating sleeve structure 16 is in the shape of a spline sleeve 17, and the end of the detection shaft 5 forms a spline shaft 18. The rotating sleeve structure 16 is spline-connected with the detection shaft 5, as Figure 5 shown. The swing arm frame 12 in this embodiment has two parallel side plates. The two ends of the two side plates respectively form a rotating end 13 and a swinging end 14. Two coaxial rotating rings 20 are arranged at the rotating end 13; a linkage part 22 is formed in the middle of the outer wall of the rotating sleeve structure 16. Rotating groove parts 19 are formed at both ends of the linkage part 22. The two rotating rings 20 on both sides of the rotating end 13 are rotatably sleeved on the rotating groove parts 19, and a bearing (not shown in the figure) is arranged between them; the other end of the side plate, the swinging end 14, is provided with two through rotating holes. When in use, the two ends of the shaft of the small gear 3 are rotatably arranged in the two rotating holes.

[0050] Furthermore, the small gear 3 is connected with the linkage part 22 through a synchronous chain 21; during actual use, it is necessary to transmit the rotation of the large gear ring 2 to the rotating sleeve structure 16 through the small gear 3, asFigure 5 As shown, a sprocket is formed on the linkage part 22. Similarly, a sprocket is also provided on the same side of the pinion 3. A chain is sleeved on the two sprockets. Further, the rotation of the pinion 3 controls the rotation of the rotating sleeve structure 16 through chain drive. Since the swing arm 12 is rotatably connected to the rotating sleeve, the rotation of the pinion 3 will not drive the rotation of the swing arm 12. And the swing arm 12 can sleeved the rotating end 13 on the spline shaft 18, so as to make up for the change in the radial distance between the pinion 3 and the large gear ring 2 by the rotation of the swing arm 12.

[0051] Specifically, the sliding of the swing arm structure 11 is configured to take the relative displacement of the large gear ring 2 and the encoder body 4 in the axial direction as the driving force. Specifically, side wing plates 24 are respectively provided on the outer end faces of the side plates, and a shaft rod 25 extends downward from the side wing plates 24. A roller 26 is rotatably provided at the end of the shaft rod 25, and there are two rollers 26, which respectively roll and fit on the two side end faces of the large gear ring 2. When the springboard causes an axial position change between the large gear ring 2 and the encoder body 4 due to force change, the two side rollers 26 can apply a pushing and pulling force to the side plates on both sides of the swing arm 12, so that the whole swing arm structure 11 slides along the axis direction of the spline shaft 18. It can be understood that the spline shaft 18 has a certain length, which can cover the moving stroke between the large gear ring 2 and the encoder body 4. Due to the sliding connection effect between the spline sleeve 17 and the spline shaft 18, the axial displacement change between the large gear ring 2 and the encoder body 4 can be compensated.

[0052] The rotation of the swing arm structure 11 is configured to detect the change in the distance between the detection shaft 5 and the inner ring of the large gear ring 2 as the driving force. Since the position change also includes the change in the radial position between the large gear ring 2 and the encoder body 4, when the change occurs, the large gear ring 2 will squeeze the pinion 3 to move. Due to the setting of the swing arm frame 12, the swing arm frame 12 can be rotated to avoid the stress extrusion caused by the large gear ring 2 on the encoder body 4 or the disengagement of the gears. Specifically, when the large gear ring 2 moves upward, the large gear ring 2 applies an upward extrusion force to the pinion 3. Therefore, at this time, the swing arm frame 12 moves upward accordingly, and the engagement between the pinion 3 and the large gear ring 2 can be maintained. Then, the angular rotation is transmitted to the encoder body 4 through the chain. On the contrary, when the large gear ring 2 moves downward, the large gear ring 2 has a tendency to leave the pinion 3. Therefore, it is necessary to make the swing arm frame 12 rotate downward. Specifically, the swing arm structure 11 further includes an elastic mechanism 15, and the elastic mechanism 15 is arranged to make the swing end 14 always have a tendency to approach the large gear ring 2. In this embodiment, the elastic mechanism 15 includes an upper pressure plate 23, a side wing plate 24, and a spring 27. The upper pressure plate 23 is fixedly arranged on the upper side of the encoder bracket 6, and a side wing plate 24 is provided correspondingly below it. A spring 27 is arranged between the two, so that the elastic force of the spring 27 can be utilized and act on the side wing plate 24 to press down the swing end 14 of the swing arm frame 12, so that the pinion 3 is always engaged with the large gear ring 2, thus overcoming the problem of displacement change between the large gear ring 2 and the encoder body 4.

[0053] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A novel springboard angle detection device, comprising a springboard connecting plate (1), characterized in that: The invention also comprises a large gear ring (2), the large gear ring (2) being coaxially arranged with the rotation axis of the springboard connecting plate (1), a small gear (3) being meshingly connected to the inner side of the large gear ring (2), and an encoder body (4) being fixedly arranged, the small gear (3) being connected to a detection shaft (5) of the encoder body (4) and driving the detection shaft (5) to rotate, the encoder acquiring the rotation angle of the small gear (3) and converting it to obtain the springboard flipping angle.

2. A novel springboard angle detection device according to claim 1, characterized in that: The encoder body (4) is arranged on an encoder bracket (6), the encoder bracket (6) is in the shape of a door frame, mounting plates (7) are provided at the feet of both ends of the encoder bracket (6), mounting holes (8) are provided on the mounting plates (7), and the encoder bracket (6) is mounted on the reducer.

3. A novel springboard angle detection device according to claim 1, characterized in that: The outer ring of the large gear ring (2) forms an annular plate (9), and a plurality of flange holes (10) are distributed on the annular plate (9). The large gear ring (2) is fixed to the springboard connecting plate (1) through the flange holes (10).

4. A novel springboard angle detection device according to claim 1, characterized in that: The number of teeth of the large gear ring (2) is 171, the number of teeth of the small gear (3) is 23, and the module is 3.

5. A novel springboard angle detection device according to claim 2, characterized in that: The invention also comprises a swing arm structure (11), wherein the swing arm structure (11) is used to adjust and adapt the axial relative movement and / or radial relative movement between the large gear ring (2) and the encoder body (4); the swing arm structure (11) comprises a swing arm frame (12), wherein the rotating end (13) of the swing arm frame (12) is rotatably arranged with the axis of the detection shaft (5) of the encoder body (4) as the axis, and the swing end (14) of the swing arm frame (12) is rotatably arranged with the pinion (3); and the swing arm structure (11) is integrally connected in a sliding manner along the axis direction of the detection shaft (5); the sliding of the swing arm structure (11) is configured to use the relative displacement of the large gear ring (2) and the encoder body (4) in the axis direction as the driving force; and the rotation of the swing arm structure (11) is configured to use the change in the spacing between the detection shaft (5) and the inner ring of the large gear ring (2) as the driving force.

6. A novel springboard angle detection device according to claim 5, characterized in that: The swing arm structure (11) further comprises an elastic mechanism (15), wherein the elastic mechanism (15) is arranged so that the swing end (14) always has a tendency to approach the large gear ring (2).

7. A novel springboard angle detection device according to claim 6, characterized in that: The rotating end (13) is provided with a rotating sleeve structure (16), the inner ring of the rotating sleeve structure (16) is in the shape of a spline sleeve (17), the end of the detection shaft (5) forms a spline shaft (18), the rotating sleeve structure (16) is spline-connected to the detection shaft (5), the middle part of the outer wall of the rotating sleeve structure (16) forms a linkage part (22), the two ends of the linkage part (22) form a rotating groove part (19), and the rotating end (13) is provided with two rotating rings (20), and the two rotating rings (20) are respectively rotatably connected to the rotating groove part (19).

8. A novel springboard angle detection device according to claim 6, characterized in that: The pinion (3) and the linkage part (22) are connected via a synchronous chain (21).

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