Angle measuring device at hinge point of portal crane
By designing an angle measuring device at the hinge point of the gantry crane, and utilizing the meshing motion of the arc-shaped guide rail and the measuring wheel, the problem of obtaining accurate angle parameters for port gantry cranes was solved, thus achieving accuracy and reliability in angle measurement.
Patent Information
- Application Number
- CN202520582336.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing port gantry cranes have difficulty obtaining precise angle parameters at the hinge point, which affects the realization of intelligent control.
Design an angle measuring device at the hinge point of a gantry crane, including a first boom and a second boom. Utilize the meshing motion of an arc-shaped guide rail and a measuring wheel to obtain the included angle between the booms in real time through an encoder, thereby eliminating errors and improving accuracy.
It enables direct measurement of the hinge point angle of the gantry crane, avoiding the indirect errors of traditional overall position measurement and ensuring the accuracy and reliability of angle conversion.
Smart Images
Figure CN223925733U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of measuring device, especially relate to an angle measuring device at the hinge point of door machine. BACKGROUND
[0002] Port door machine, also known as port crane, is the comprehensive mechanical equipment integrating hoisting, handling, stacking and other functions, which stands in the busy container terminal, and completes the cargo handling task from ship to land with powerful hoisting capacity and flexible operation mode, as the key link of modern port operation, the performance and efficiency of port door machine system directly affect the overall operation level and competitiveness of the port. From traditional mechanical transmission to modern electrical control, the intelligent process of port door machine is accelerating, in order to adapt to the intelligent change of port door machine, the rotation angle of port door machine hinge point needs to be collected to realize intelligent comprehensive control, but the existing port door machine usually installs sensor on the body to measure the overall position of the door machine, and it is difficult to obtain the accurate angle parameter at the hinge point of the door machine.
[0003] Therefore, it is urgent to design an angle measuring device at the hinge point of door machine to solve the above-mentioned problem of difficult to obtain the angle parameter at the hinge point of door machine. CONTENT OF THE UTILITY MODEL
[0004] In order to solve the technical problem of difficult to obtain the angle parameter at the hinge point of door machine mentioned in the background, an angle measuring device at the hinge point of door machine is provided to solve the above-mentioned problem.
[0005] In order to achieve the above-mentioned purpose, the specific technical scheme of the angle measuring device at the hinge point of door machine of the utility model is as follows:
[0006] An angle measuring device at the hinge point of door machine, comprising a first arm frame and a second arm frame, the first arm frame and the second arm frame are hinged, an arc-shaped guide rail is arranged on the first arm frame, an encoder is arranged on the second arm frame, a measuring round wheel is installed on the encoder, the measuring round wheel is movably connected with the arc-shaped guide rail, the first arm frame and the second arm frame rotate, the measuring round wheel moves along the arc-shaped guide rail, so that the encoder reads the motion parameter of the measuring round wheel to obtain the included angle between the first arm frame and the second arm frame.
[0007] Further, the center of the arc-shaped guide rail is the hinge point of the first arm frame and the second arm frame.
[0008] Further, the arc-shaped guide rail comprises a guide rail base and a guide rail, one end of the guide rail base is fixedly connected with the first arm frame, and the end of the guide rail base away from the first arm frame is fixedly connected with the guide rail.
[0009] Further, the arc-shaped guide rail is a toothed guide rail, the measuring round wheel is a gear disc, the toothed guide rail is engaged with the gear disc, so that the gear disc moves along the toothed guide rail.
[0010] Further, the second arm frame and the encoder are connected through an encoder support.
[0011] Further, the encoder is provided with a first rotating shaft, and the measuring round wheel is fixedly connected with a second rotating shaft, and the first rotating shaft and the second rotating shaft are connected through a steel spring coupling.
[0012] Further, one end of the encoder support is fixedly connected with the second arm frame, and the other end of the encoder support away from the second arm frame is fixedly connected with the encoder.
[0013] Further, the encoder support is provided with a fixing hole, and the fixing hole is fixedly connected with the encoder.
[0014] Further, the encoder support is provided with a rotating hole, and the rotating hole is rotatably connected with the second rotating shaft, and a containing space is arranged between the fixing hole and the rotating hole, so that the steel spring coupling can rotate.
[0015] Further, the second arm frame is provided with a protective cover for protecting the encoder.
[0016] The angle measuring device of the door machine hinge point has the following advantages:
[0017] The hinge point angle can be directly measured, the indirect error of the traditional overall position measurement is avoided, the design that the arc-shaped guide rail and the measuring round wheel are meshed through the tooth and the gear is adopted, the sliding is eliminated, and the accuracy of the angle conversion is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic view of the angle measuring device of the door machine hinge point.
[0019] Figure 2 It is an internal structure view of the angle measuring device of the door machine hinge point.
[0020] Figure 3 It is an enlarged view of A part in the utility model. Figure 2
[0021] Marking description in the figure: 1, first arm frame; 2, second arm frame; 3, arc-shaped guide rail; 301, guide rail base; 302, guide rail; 4, encoder; 401, first rotating shaft; 5, measuring round wheel; 501, second rotating shaft; 6, encoder support; 601, fixing hole; 602, rotating hole; 7, steel spring coupling; 8, containing space; 9, protective cover. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.
[0023] The person skilled in the art can understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means being within the scope of the utility model and forming different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.
[0024] The technical scheme of the utility model will be described below with reference to the accompanying drawings Figure 1 to the accompanying drawings Figure 3 The utility model discloses an angle measuring device at the hinge point of a portal crane.
[0025] In order to adapt to the intelligent change of the port portal crane, the rotation angle of the hinge point of the port portal crane needs to be collected to realize the intelligent comprehensive control, but the existing port portal crane often installs a sensor on the machine body to measure the overall position of the portal crane, and it is difficult to obtain the accurate angle parameter at the hinge point of the portal crane.
[0026] Therefore, the utility model provides an angle measuring device at the hinge point of a portal crane, as shown in Figure 1 and Figure 2 The utility model discloses an angle measuring device at the hinge point of a portal crane.
[0027] As a preferred, the center of the arc-shaped guide rail 3 is the hinge point of the first arm support 1 and the second arm support 2, which ensures that the movement track of the guide rail is completely consistent with the center of the arm support rotation, eliminates the measurement error caused by the guide rail deviation, and improves the accuracy and reliability of the angle measurement.
[0028] As a preferred, as shown in Figure 2As shown in the drawings, the arc-shaped guide rail 3 comprises a guide rail base 301 and a guide rail 302, one end of the guide rail base 301 is fixedly connected with the first arm support 1, and the other end of the guide rail base 301 away from the first arm support 1 is fixedly connected with the guide rail 302. Specifically, the guide rail base 301 is fixed to the first arm support 1, and the guide rail 302 provides an accurate movement path to ensure the smooth movement of the measuring circular wheel 5.
[0029] As a preferred, the arc-shaped guide rail 3 is a toothed guide rail, and the measuring circular wheel 5 is a gear disc, the toothed guide rail is engaged with the gear disc, so that the gear disc moves along the toothed guide rail. Specifically, the toothed transmission avoids sliding, and ensures the accuracy of angle measurement. At the same time, the toothed structure increases the friction force, and reduces the interference of mechanical vibration on measurement.
[0030] As a preferred, as shown in the drawings, Figure 2 The second arm support 2 is connected with the encoder 4 through the encoder support 6, so that the encoder 4 is rigidly connected with the second arm support 2.
[0031] As a preferred, as shown in the drawings, Figure 3 The first rotating shaft 401 is arranged on the encoder 4, and the second rotating shaft 501 is fixedly connected with the measuring circular wheel 5. The first rotating shaft 401 and the second rotating shaft 501 are connected through the steel spring coupling 7. Specifically, the steel spring coupling 7 buffers the mechanical vibration, compensates the installation error, and protects the encoder 4.
[0032] As a preferred, one end of the encoder support 6 is fixedly connected with the second arm support 2, and the other end of the encoder support 6 away from the second arm support 2 is fixedly connected with the encoder 4. It should be noted that the fixed connection of the first arm support 1 with the guide rail base 301 and the fixed connection of the second arm support 2 with the encoder support 6 can be set according to actual conditions. In a specific embodiment, if the first arm support 1 is installed in the ear plate of the second arm support 2 through a pin shaft, the guide rail base 301 is installed on the frame body of the first arm support 1, the guide rail 302 is fixedly connected with the guide rail base 301, and the center of the arc-shaped path of the guide rail 302 coincides with the pin shaft. The encoder support 6 is fixedly connected with the ear plate of the second arm support 2, the encoder 4 is installed on the encoder support 6, and the measuring circular wheel 5 on the encoder 4 is connected with the guide rail 302. Similarly, if the second arm support 2 is installed in the ear plate of the first arm support 1 through a pin shaft, the structures are adaptively set, and details are not described herein.
[0033] As a preferred, as shown in the drawings, Figure 3 The fixing hole 601 is arranged on the encoder support 6, and the fixing hole 601 is fixedly connected with the encoder 4, so as to realize the stable installation of the encoder 4. At the same time, the fixing hole 601 is matched with the shape of the encoder 4, realizes the installation and guiding effect of the fixing hole 601 on the encoder 4, and is convenient for the replacement and maintenance of the staff.
[0034] As preferred, the encoder support 6 is provided with a rotating hole 602, the rotating hole 602 is rotationally connected with the second rotating shaft 501, a containing space 8 is arranged between the fixing hole 601 and the rotating hole 602, the containing space 8 is used for rotating the steel spring coupling 7, the steel spring coupling 7 is provided with a rotating space, external interference is avoided, meanwhile, the steel spring coupling 7 is protected.
[0035] As preferred, as shown in Figure 2 The second arm support 2 is provided with a protective cover 9, the encoder 4 is protected, and the reliability of the device under harsh working conditions is improved.
[0036] The utility model can directly measure the hinge point angle, avoid the indirect error of traditional integral position measurement, and through the design of meshing of the tooth pattern and the gear between the arc-shaped guide rail 3 and the measuring round wheel 5, eliminate sliding, and ensure the accuracy of angle conversion.
[0037] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the implementation mode of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, all the implementation modes are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A device for measuring the angle at the hinge point of a gantry, characterized in that The first arm frame and the second arm frame are hinged, an arc-shaped guide rail is arranged on the first arm frame, an encoder is arranged on the second arm frame, a measuring round wheel is mounted on the encoder, the measuring round wheel is movably connected with the arc-shaped guide rail, the first arm frame and the second arm frame rotate, the measuring round wheel moves along the arc-shaped guide rail, so that the encoder reads the motion parameters of the measuring round wheel to obtain the included angle between the first arm frame and the second arm frame.
2. The angle measuring device at the hinge point of a door machine according to claim 1, characterized in that The center of the arc-shaped guide rail is the hinge point of the first arm frame and the second arm frame.
3. The angle measuring device at the hinge point of a door machine according to claim 2, characterized in that The arc-shaped guide rail comprises a guide rail base and a guide rail track, one end of the guide rail base is fixedly connected with the first arm frame, and the end of the guide rail base away from the first arm frame is fixedly connected with the guide rail track.
4. The angle measuring device at the hinge point of a door machine according to claim 3, characterized in that The arc-shaped guide rail is a toothed guide rail, the measuring round wheel is a gear disc, the toothed guide rail is engaged with the gear disc, so that the gear disc moves along the toothed guide rail.
5. The angle measuring device at the hinge point of a door machine according to claim 1, characterized in that, The second arm frame and the encoder are connected through an encoder support.
6. The angle measuring device at the hinge point of a door machine according to claim 5, characterized in that A first rotating shaft is arranged on the encoder, a second rotating shaft is fixedly connected with the measuring round wheel, and the first rotating shaft and the second rotating shaft are connected through a steel spring coupling.
7. The angle measuring device at the hinge point of a door machine according to claim 6, characterized in that One end of the encoder support is fixedly connected with the second arm frame, and the end of the encoder support away from the second arm frame is fixedly connected with the encoder.
8. The angle measuring device at the hinge point of a door machine according to claim 7, characterized in that A fixing hole is arranged on the encoder support and fixedly connected with the encoder.
9. The angle measuring device at the hinge point of a door machine according to claim 8, characterized in that A rotating hole is arranged on the encoder support and rotatably connected with the second rotating shaft, a containing space is arranged between the fixing hole and the rotating hole, and the steel spring coupling is rotatable in the containing space.
10. The angle measuring device at the hinge point of a door machine according to claim 1, characterized in that, A protective cover is mounted on the second arm frame to protect the encoder.