Port machinery rotation position detection device

Abstract

The utility model belongs to the technical field of detection devices, and relates to a port machinery rotation position detection device which comprises a Gray bus, an annular groove belt and a plurality of supports. The annular groove belt is installed on the outer side wall of the slewing bearing device in a circular ring shape. A clamping groove for accommodating the Gray bus is formed in the outer side wall of the annular groove belt, and the Gray bus is annularly mounted in the clamping groove of the annular groove belt; the supports are annularly and evenly distributed with the rotation center line of the rotation mechanism as the center, and the supports are all installed on the outer side wall of the rotation supporting device and used for fixing the Gray bus and the annular groove belt to the outer side wall of the rotation supporting device in an abutting and pressing mode. According to the detection device, the Gray bus is adopted to detect the rotation position, the Gray bus and the annular groove belt can be tightly attached to the outer side wall of the rotation supporting device, it can be ensured that the Gray bus, the annular groove belt and the rotation supporting device are the same in roundness, the Gray bus and the rotation center line of the rotation mechanism can be coaxial, and the rotation position detection accuracy can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection devices, in particular to a port machinery rotation position detection device. Background Art

[0002] Port machinery with slewing mechanisms, such as slewing cranes and bucket wheel stackers, is very important for ensuring the safety, accuracy and efficiency of port loading and unloading operations by detecting the slewing position during port loading and unloading operations.

[0003] At present, the rotation position detection devices of the port machinery rotation mechanism mainly include photoelectric encoders, laser distance sensors, travel limit switches, Gray busbars, etc.; among them, the photoelectric encoder relies on the mechanical contact working mode of relative positioning, which is easy to form cumulative errors due to mechanical slippage; the laser distance sensor is suitable for linear distance measurement, and the reception and transmission of laser signals are easily interfered; the travel limit switch is prone to detection blind spots; relatively speaking, the Gray busbar adopts non-contact detection method and magnetic line conduction principle, with the advantages of high resolution and strong anti-interference ability, and the rotation position detected by it is highly accurate.

[0004] The Gray busbar is usually installed in a ring-shaped suspension on the outer wall of the slewing bearing device of the port machinery using a bracket. Due to the ring-shaped relative movement between the slewing bearing device and the slewing mechanism of the port machinery, the roundness of the Gray busbar cannot be guaranteed due to the suspended installation. The Gray busbar is partially arched outward or sunken inward, which leads to insufficient accuracy in the detection of the slewing position. Utility Model Content

[0005] The purpose of the utility model is to provide a port machinery rotation position detection device, which uses a Gray busbar to detect the rotation position. The Gray busbar is fitted on the outer side wall of the slewing support device to improve its roundness and make it coaxial with the rotation center line of the slewing mechanism to solve the problems raised in the above-mentioned background technology.

[0006] The utility model is realized by the following technical solutions:

[0007] A port machinery rotary position detection device comprises a Gray busbar and an annular groove belt, wherein the annular groove belt is installed on the outer side wall of a rotary support device in an annular shape, and the annular groove belt is coaxial with the rotary center line of the rotary mechanism; a clamping groove for accommodating the Gray busbar is provided on the outer side wall of the annular groove belt, and the Gray busbar is installed in the clamping groove of the annular groove belt in an annular shape, and the annular Gray busbar is coaxial with the rotary center line of the rotary mechanism;

[0008] It also includes a plurality of brackets, which are evenly distributed in a ring shape with the rotation center line of the rotary mechanism as the center, and are all installed on the outer wall of the rotary support device to press and fix the Gray busbar and the annular groove belt on the outer wall of the rotary support device.

[0009] It can be seen from the above technical solution that the utility model provides a port machinery rotation position detection device, which has the following beneficial effects:

[0010] The detection device uses Gray busbar to detect the rotation position. As a known technical structure, the slewing support device is a columnar structure with a circular outer wall. The annular groove belt is close to the outer wall of the slewing support device. The Gray busbar is installed in the groove of the annular groove belt, so that the Gray busbar and the annular groove belt can fit tightly on the outer wall of the slewing support device. Different from the suspended installation of the Gray busbar, the Gray busbar and the annular groove belt are closely fitted on the outer wall of the slewing support device, which can ensure that the Gray busbar and the annular groove belt are of the same roundness as the slewing support device, and can make the Gray busbar coaxial with the rotation center line of the slewing mechanism. When the slewing mechanism and the slewing support device move relative to each other and use the Gray busbar to detect the rotation position, the rotation position detection accuracy can be improved, and the detection accuracy of the rotation position is high.

[0011] Furthermore, the inner side wall of the annular groove belt is glued and fixed to the outer side wall of the slewing support device, which can provide basic support for the installation of the Gray busbar and facilitate the installation of the Gray busbar. The annular groove belt is first glued and fixed, which can also facilitate the adjustment and control of the horizontality of the annular groove belt on the outer side wall of the slewing support device.

[0012] Furthermore, the annular groove belt is made of soft plastic or rubber material, which has good flexibility and can be bent and fit on the outer side wall of the slewing support device to make it annular with high roundness.

[0013] Furthermore, the bracket includes two support plates, one ends of which are welded to the outer side wall of the slewing bearing device and are symmetrical in the upper and lower directions, each support plate is provided with a slide groove, and a bolt and nut assembly is arranged in the slide groove; the annular groove belt is located between the two support plates, and the bottom surface of the annular groove belt contacts the top surface of the lower support plate, so that the lower support plate supports the annular groove belt; a U-shaped pressure plate is arranged between the two support plates, and the middle section of the U-shaped pressure plate is used to press the Gray busbar, and bolt insertion holes are provided at both ends of the U-shaped pressure plate, and the two ends of the U-shaped pressure plate are respectively fixedly connected to the two support plates by bolt and nut assemblies, so that the Gray busbar and the annular groove belt are pressed and fixed to the outer side wall of the slewing bearing device.

[0014] Furthermore, the support plate is made of L-shaped angle steel with high strength, and one end of the support plate is welded to the outer side wall of the slewing support device, with a large contact area and a long weld, which can ensure the stability of the bracket.

[0015] Furthermore, the spacing between the two support plates is greater than the length of the U-shaped pressure plate in the vertical direction, so that the bottom surface of the U-shaped pressure plate contacts the top surface of the lower support plate, and the lower support plate supports the U-shaped pressure plate. The top surface of the U-shaped pressure plate has a certain spacing from the bottom surface of the upper support plate, which can facilitate the installation of the U-shaped pressure plate between the two support plates.

[0016] Furthermore, a limiting top plate is provided on the rear side wall of the U-shaped pressure plate, which can limit the annular groove belt from the top of the annular groove belt. The limiting top plate cooperates with the lower support plate to clamp the annular groove belt, thereby preventing the annular groove belt and the Gray busbar from moving upward.

[0017] Furthermore, the rear side wall of the U-shaped pressure plate is provided with a plurality of anti-slip protrusions. When the U-shaped pressure plate presses against the Gray busbar, the friction resistance between the U-shaped pressure plate and the Gray busbar can be increased under the action of the plurality of anti-slip protrusions, thereby ensuring that the Gray busbar is tightly fixed to the outer side wall of the slewing support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1 It is a schematic diagram of the installation structure of the utility model.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0022] Figure 4 It is a schematic diagram of the explosion structure of the utility model.

[0023] Figure 5 It is a cross-sectional structural schematic diagram of the utility model.

[0024] The names of the components in the figure are: 1. Slewing bearing device, 2. Gray busbar, 3. Annular groove belt, 4. Bracket, 4.1. Support plate, 4.2. U-shaped pressure plate, 4.3. Slide groove, 4.4. Bolt and nut assembly, 4.5. Limiting top plate, 4.6. Anti-slip convex teeth, 5. Slewing mechanism, 6. Cantilever, 7. Antenna box, 8. Address encoder 9. Address decoder. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0026] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", "front", "back", "left", "right", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] A port machinery rotation position detection device, such as Figures 1 to 5 As shown, it is composed of a Gray busbar 2, an annular groove belt 3 and a plurality of brackets 4.

[0028] like Figures 2 to 5 As shown, the annular groove belt 3 is made of rubber material, and its outer side wall is provided with a slot for accommodating the Gray busbar 2, and the cross section of the annular groove belt 3 is U-shaped; the annular groove belt 3 is bent and fitted on the outer side wall of the slewing support device 1 and is annular, and the annular annular groove belt 3 is coaxial with the slewing center line of the slewing mechanism 5; the annular groove belt 3 made of rubber material has good flexibility and can be bent and fitted on the outer side wall of the slewing support device 1 to be annular with a high roundness;

[0029] The inner wall of the annular groove belt 3 is glued and fixed to the outer wall of the slewing bearing device 1, which can provide basic support for the installation of the Gray busbar 2 and facilitate the installation of the Gray busbar 2. The annular groove belt 3 is glued and fixed first, which can also facilitate the adjustment and control of the horizontality of the annular groove belt 3 on the outer wall of the slewing bearing device 1.

[0030] like Figure 1 , Figure 2 and Figure 5 As shown, the Gray busbar 2 is installed in the groove of the annular groove belt 3 in an annular shape, and the annular Gray busbar 2 is coaxial with the rotation center line of the rotation mechanism 5.

[0031] like Figures 2 to 5 As shown, the bracket 4 includes two support plates 4.1, one end of each of which is welded to the outer side wall of the slewing support device 1 and is symmetrical up and down; the support plate 4.1 is made of L-shaped angle steel, which has high strength, and one end of which is welded to the outer side wall of the slewing support device 1, with a large contact area and a long weld, which can ensure the stability of the bracket 4;

[0032] Each support plate 4.1 is provided with a slide groove 4.3, and a bolt and nut assembly 4.4 is arranged in the slide groove 4.3; the annular groove belt 3 is located between the two support plates 4.1, and the bottom surface of the annular groove belt 3 contacts the top surface of the lower support plate 4.1, so that the lower support plate 4.1 supports the annular groove belt 3;

[0033] A U-shaped pressing plate 4.2 is arranged between the two supporting plates 4.1, the middle section of the U-shaped pressing plate 4.2 is used to press the Gray busbar 2, bolt insertion holes are provided at both ends of the U-shaped pressing plate 4.2, and the two ends of the U-shaped pressing plate 4.2 are respectively fixedly connected to the two supporting plates 4.1 through bolt and nut assemblies 4.4, so as to press and fix the Gray busbar 2 and the annular groove belt 3 to the outer wall of the slewing bearing device 1;

[0034] The distance between the two support plates 4.1 is greater than the length of the U-shaped pressing plate 4.2 in the vertical direction, so that the bottom surface of the U-shaped pressing plate 4.2 contacts the top surface of the lower support plate 4.1, and the lower support plate 4.1 supports the U-shaped pressing plate 4.2. There is a certain distance between the top surface of the U-shaped pressing plate 4.2 and the bottom surface of the upper support plate 4.1, which can facilitate the installation of the U-shaped pressing plate 4.2 between the two support plates 4.1.

[0035] The rear side wall of the U-shaped pressing plate 4.2 is provided with a limiting top plate 4.5, which can limit the annular groove belt 3 from the top of the annular groove belt 3. The limiting top plate 4.5 cooperates with the lower side support plate 4.1 to clamp the annular groove belt 3, and can prevent the annular groove belt 3 and the Gray busbar 2 from moving upward;

[0036] The rear side wall of the U-shaped pressing plate 4.2 is provided with a plurality of anti-skid convex teeth 4.6. When the U-shaped pressing plate 4.2 presses against the Gray busbar 2, the friction resistance between the U-shaped pressing plate 4.2 and the Gray busbar 2 can be increased under the action of the plurality of anti-skid convex teeth 4.6, so as to ensure that the Gray busbar 2 is tightly fixed to the outer side wall of the slewing bearing device 1;

[0037] The above-mentioned support plate 4.1, U-shaped pressure plate 4.2, bolt and nut assembly 4.4, limit top plate 4.5, and anti-slip convex teeth 4.6 constitute a bracket 4. Several brackets 4 are installed on the outer wall of the slewing bearing device 1 and are evenly distributed in a ring shape with the rotation center line of the slewing mechanism 5 as the center. They can press and fix the Gray busbar 2 and the annular groove belt 3 on the outer wall of the slewing bearing device 1 to ensure the stability of the Gray busbar 2 and the annular groove belt 3.

[0038] In addition, if Figure 1As shown, the detection device further includes an antenna box 7 and an address encoder 8 installed on the cantilever 6 of the slewing mechanism 5, or the antenna box 7 and the address encoder 8 are installed on the body of the slewing mechanism 5, and further includes an address decoder 9 installed on the slewing support device 1, the antenna box 7 is electrically connected to the address encoder 8, the Gray bus 2 is electrically connected to the address decoder 9, and the address decoder 9 is externally connected to the user PLC to transmit the signal to the user end;

[0039] Gray bus 2, antenna box 7, address encoder 8, address decoder 9 constitute Gray bus detection system, this detection system is a well-known technology, wherein Gray bus 2 is composed of nylon fiber synthetic material shell material and internal core wires compiled according to binary digital coding rules, antenna box 7 moves non-contact relative to Gray bus 2, Gray bus detection system adopts magnetic line conduction principle to detect the displacement of rotary mechanism 5, when alternating current is passed through the coil of antenna box 7, alternating magnetic field will be generated near antenna box 7, Gray bus 2 is approximately in an alternating, uniformly distributed magnetic field, each pair of Gray bus 2 core wires will generate induced electromotive force, address encoder 8 generates signal and transmits it to the induction loop of Gray bus 2 through electromagnetic coupling, address decoder 9 performs phase comparison on the received signal;

[0040] The composition structure and operation principle of the above-mentioned Gray bus detection system are well-known technologies and will not be described in detail here.

[0041] The installation and working principle of the port machinery rotation position detection device are as follows:

[0042] When using the Gray busbar 2 to detect the rotation position of the port machinery slewing mechanism 5, the annular groove belt 3 is glued and fixed on the circular outer wall of the slewing support device 1 of the column structure, so that the annular groove belt 3 is annular and coaxial with the rotation center line of the slewing mechanism 5, which serves as the installation basis of the Gray busbar 2;

[0043] Two support plates 4.1 of a plurality of brackets 4 are welded on the outer side wall of the slewing bearing device 1, one of the support plates 4.1 is welded above the annular groove belt 3 and has a certain distance from the top surface of the annular groove belt 3, and the other support plate 4.1 is welded below the annular groove belt 3 and the bottom surface of the annular groove belt 3 is in contact with the top surface of the support plate 4.1, and the support plate 4.1 can assist in supporting the annular groove belt 3;

[0044] The annular groove belt 3 is installed in the slot on the annular groove belt 3, so that the Gray busbar 2 is annular and coaxial with the rotation center line of the rotary mechanism 5; the U-shaped pressing plates 4.2 of each bracket 4 are installed, and the middle section of the U-shaped pressing plate 4.2 presses the Gray busbar 2, and the two ends of the U-shaped pressing plate 4.2 are respectively fixedly connected to the two support plates 4.1 through bolt and nut assemblies 4.4, so that the Gray busbar 2 and the annular groove belt 3 are pressed and fixed on the outer side wall of the rotary support device 1, which can ensure the stability of the Gray busbar 2;

[0045] An antenna box 7, an address encoder 8, an address decoder 9 and other auxiliary devices are installed to form a Gray bus detection system with the Gray bus 2, and the rotation position of the rotation mechanism 5 is detected by using the system;

[0046] In the detection device, the Gray busbar 2 and the annular groove belt 3 can be tightly fitted on the outer side wall of the slewing support device 1, which can ensure that the Gray busbar 2 and the annular groove belt 3 are co-circular with the slewing support device 1, and can make the Gray busbar 2 coaxial with the slewing center line of the slewing mechanism 5. When the slewing mechanism 5 and the slewing support device 1 move relative to each other and the slewing position is detected using the Gray busbar 2, the accuracy of the slewing position detection can be improved, and the accuracy of the slewing position detection is high.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A port machinery rotation position detection device, comprising a Gray busbar (2), characterized in that: It also comprises an annular groove belt (3), the annular groove belt (3) is installed in an annular shape on the outer side wall of the slewing bearing device (1), and the annular annular groove belt (3) is coaxial with the slewing center line of the slewing mechanism (5); the outer side wall of the annular groove belt (3) is provided with a slot for accommodating the Gray busbar (2), the Gray busbar (2) is installed in an annular shape in the slot of the annular groove belt (3), and the annular Gray busbar (2) is coaxial with the slewing center line of the slewing mechanism (5); It also includes a plurality of brackets (4), which are evenly distributed in a ring shape with the rotation center line of the rotation mechanism (5) as the center, and the plurality of brackets (4) are all installed on the outer side wall of the rotation support device (1) to press and fix the Gray busbar (2) and the annular groove belt (3) on the outer side wall of the rotation support device (1).

2. The port machinery rotation position detection device according to claim 1, characterized in that: The inner side wall of the annular groove belt (3) is glued and fixed to the outer side wall of the slewing bearing device (1).

3. The port machinery rotation position detection device according to claim 2, characterized in that: The annular groove belt (3) is made of soft plastic or rubber material.

4. The port machinery rotation position detection device according to any one of claims 1 to 3, characterized in that: The bracket (4) comprises two support plates (4.1), one end of each of the two support plates (4.1) is welded to the outer side wall of the slewing bearing device (1) and is symmetrical in the upper and lower directions; the annular groove belt (3) is located between the two support plates (4.1), and the bottom surface of the annular groove belt (3) is in contact with the top surface of the lower support plate (4.1); a U-shaped pressing plate (4.2) is arranged between the two support plates (4.1), the middle section of the U-shaped pressing plate (4.2) is used to press against the Gray busbar (2), and the two ends of the U-shaped pressing plate (4.2) are respectively fixedly connected to the two support plates (4.1) through bolt and nut assemblies (4.4).

5. The port machinery rotation position detection device according to claim 4, characterized in that: The support plate (4.1) is made of L-shaped angle steel.

6. The port machinery rotation position detection device according to claim 4, characterized in that: The distance between the two support plates (4.1) is greater than the length of the U-shaped pressing plate (4.2) in the vertical direction.

7. The port machinery rotation position detection device according to claim 6, characterized in that: A limiting top plate (4.5) is provided on the rear side wall of the U-shaped pressing plate (4.2).

8. The port machinery rotation position detection device according to claim 4, characterized in that: The rear side wall of the U-shaped pressing plate (4.2) is provided with a plurality of anti-slip convex teeth (4.6).

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