Electromagnetic locking device of airborne rotary table

Abstract

The utility model relates to the technical field of photoelectric rotary tables, and discloses an electromagnetic locking device of an airborne rotary table, which comprises a mounting seat and a bidirectional holding electromagnet, a containing groove is arranged on the mounting seat, the bidirectional holding electromagnet is fixed in the containing groove, a connecting rod is hinged on an iron core of the bidirectional holding electromagnet, and the connecting rod penetrates through the side wall of the containing groove. A magnet is mounted at the end, away from the iron core, of the connecting rod, a mounting hole for containing the magnet is formed in the end, away from the iron core, of the connecting rod, and an annular glue storage groove is formed in the inner side wall of the mounting hole and is coaxial with the mounting hole. The beneficial effects of the utility model are that the epoxy resin glue is injected into the mounting hole after the magnet is mounted, and after the epoxy resin glue is solidified, the epoxy resin glue in the glue storage groove is matched with the glue storage groove to form a limiting structure, so that the stability of the bonded magnet is improved, the magnet is ensured not to fall off under the environment of strong vibration and strong impact for a long time, and the service life of the magnet is prolonged. The system stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photoelectric turntables, in particular to an electromagnetic locking device of an airborne turntable. Background Art

[0002] The driving locking mechanism is often used in the airborne turntable, and it is necessary to ensure that each rotating shaft system does not rotate with a large displacement in the non-working state. Among the current driving locking mechanisms, the electric driving locking mechanism is often used, which is mainly composed of an electromagnet mounting seat, a two-way holding electromagnet, a sliding connecting rod, a magnet and a Hall sensor component. The sliding connecting rod is connected to the electromagnet. When the electromagnet is positively excited, the electromagnet drives the sliding connecting rod to extend, so that the connecting rod extends into the limit hole. A magnet is bonded to the top of the sliding connecting rod. When the connecting rod is extended and locked under the drive of the electromagnet, the magnet is just within the sensing range of the Hall component. At this time, the signal feedback from the Hall component can be used to determine whether it is in a locked state. The magnet installation structure is the same as the magnet installation structure of the Chinese utility model patent (authorization announcement number: CN212614167U name: electromagnetic lock). However, since the airborne turntable often works under strong vibration and strong impact, the bonding between the sliding connecting rod and the magnet is not reliable. In a long-term vibration and impact environment, the magnet is easy to fall out, causing the Hall sensor to fail. The system cannot determine whether the frame is in a locked state, causing system failure. Utility Model Content

[0003] The utility model aims to provide an electromagnetic locking device for an airborne turntable to overcome the shortcomings of the prior art.

[0004] The purpose of the utility model is achieved through the following technical solutions: an electromagnetic locking device for an airborne turntable, comprising a mounting seat and a bidirectional holding electromagnet, the mounting seat is provided with a receiving groove, the bidirectional holding electromagnet is fixed in the receiving groove, a connecting rod is hinged on the iron core of the bidirectional holding electromagnet, the connecting rod passes through the side wall of the receiving groove, a magnet is installed at the end of the connecting rod away from the iron core, a mounting hole for placing the magnet is provided at the end of the connecting rod away from the iron core, an annular glue storage groove is provided on the inner side wall of the mounting hole, and the glue storage groove is coaxial with the mounting hole.

[0005] Preferably, a constriction is provided at the end of the mounting hole after the magnet is placed.

[0006] Preferably, a glue injection hole is further provided on the side wall of the iron core, the glue injection hole is communicated with the glue storage groove, and there are multiple glue injection holes which are evenly distributed around the mounting hole.

[0007] Preferably, a countersunk through hole is provided at the bottom of the accommodating groove, a large end of the countersunk through hole is away from the bidirectional holding electromagnet, a screw is installed in the countersunk through hole, and the screw is used to fasten the bidirectional holding electromagnet.

[0008] Preferably, the countersunk through hole is an oblong hole, and the long side of the countersunk through hole is parallel to the connecting rod.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] Epoxy resin glue is injected into the mounting hole after the magnet is installed. After the epoxy resin glue solidifies, the epoxy resin glue in the glue storage groove cooperates with the glue storage groove to form a limiting structure, which improves the stability of the magnet after bonding, ensures that the magnet will not fall under long-term strong vibration and strong impact environments, and improves system stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0012] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0013] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0014] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0015] In the figure, 1-mounting seat, 2-bidirectional holding electromagnet, 3-accommodating groove, 4-connecting rod, 5-magnet, 6-glue storage groove, 7-glue injection hole, 8-countersunk through hole, 9-screw, 10-Hall sensor component. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1 and 3As shown, an electromagnetic locking device for an airborne turntable includes a mounting seat 1 and a bidirectional holding electromagnet 52, wherein the mounting seat 1 is provided with a receiving groove 3, the bidirectional holding electromagnet 52 is fixed in the receiving groove 3, a connecting rod 4 is hinged on the iron core of the bidirectional holding electromagnet 52, the connecting rod 4 passes through the side wall of the receiving groove 3, a magnet 5 is installed at the end of the connecting rod 4 away from the iron core, a mounting hole for placing the magnet 5 is provided at the end of the connecting rod 4 away from the iron core, an annular glue storage groove 6 is provided on the inner side wall of the mounting hole, the glue storage groove 6 is coaxial with the mounting hole, epoxy resin glue is injected into the mounting hole after the magnet 5 is installed, and the epoxy resin glue is injected into the mounting hole after the magnet 5 is installed. After the resin glue solidifies, the epoxy resin glue in the glue storage groove 6 cooperates with the glue storage groove 6 to form a limiting structure, which improves the stability of the magnet 5 after bonding, ensures that the magnet 5 will not fall under long-term strong vibration and strong impact environments, and improves the stability of the system. A Hall sensing component 10 is also provided on one side of the mounting base 1. The Hall sensing component 10 is located on the side where the connecting rod 4 extends. When the magnet 5 is just within the sensing range of the Hall component, the signal fed back by the Hall component can be used to determine whether it is in a locked state, thereby avoiding the system being unable to determine whether it is in a locked state, causing system failure.

[0023] In this embodiment, if Figure 4 As shown, a constriction is provided at the end of the mounting hole after the magnet 5 is placed. The constriction can apply pressure to the solidified epoxy resin glue. After the pressure is transmitted to the magnet 5, the magnet 5 is pressed against the bottom of the mounting hole, further reducing the vibration of the magnet 5 fixed in the mounting hole, causing abnormal noise or demagnetization of the magnet 5.

[0024] In this embodiment, if Figure 1 and 3 As shown, a glue injection hole 7 is further provided on the side wall of the iron core, and the glue injection hole 7 is connected to the glue storage groove 6. There are multiple glue injection holes 7 and they are evenly distributed around the mounting hole, so that the magnet 5 can be installed first and then glue is injected through the glue injection holes 7, avoiding the difficulty of pressing the magnet 5 into the mounting hole due to the obstruction of glue when glue is first injected into the mounting hole and then the magnet 5 is pressed into the mounting hole, making the installation of the magnet 5 more convenient and easy.

[0025] In this embodiment, if Figure 1 and 2 As shown, a countersunk through hole 8 is provided at the bottom of the accommodating groove 3, and the large end of the countersunk through hole 8 is away from the bidirectional holding electromagnet 52. A screw 9 is installed in the countersunk through hole 8, and the screw 9 is used to fasten the bidirectional holding electromagnet 52. The screw 9 is completely buried in the mounting seat 1 through the countersunk through hole 8 to prevent the screw 9 from leaking out and causing scratching, which affects the normal operation of the turntable.

[0026] In this embodiment, if Figure 2As shown, the countersunk through hole 8 is an oblong hole, and the long side of the countersunk through hole 8 is parallel to the connecting rod 4, so that the installation position of the bidirectional holding electromagnet 52 can be fine-tuned, so that the magnet 5 extending out of the mounting seat 1 is kept within the optimal sensing range of the Hall component.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electromagnetic locking device for an airborne turntable, comprising a mounting seat (1) and a bidirectional holding electromagnet (2), wherein the mounting seat (1) is provided with a receiving groove (3), the bidirectional holding electromagnet (2) is fixed in the receiving groove (3), a connecting rod (4) is hinged on the iron core of the bidirectional holding electromagnet (2), the connecting rod (4) passes through the side wall of the receiving groove (3), and a magnet (5) is installed at the end of the connecting rod (4) away from the iron core, characterized in that: The end of the connecting rod (4) away from the iron core is provided with a mounting hole for placing the magnet (5), and the inner wall of the mounting hole is provided with an annular glue storage groove (6), and the glue storage groove (6) is coaxial with the mounting hole.

2. The electromagnetic locking device of an airborne turntable according to claim 1, characterized in that: A constriction is provided at the end of the mounting hole after the magnet (5) is placed.

3. The electromagnetic locking device of an airborne turntable according to claim 1, characterized in that: A glue injection hole (7) is also provided on the side wall of the iron core, the glue injection hole (7) is communicated with the glue storage groove (6), and there are a plurality of glue injection holes (7) which are evenly distributed around the mounting hole.

4. The electromagnetic locking device of an airborne turntable according to claim 1, characterized in that: A countersunk through hole (8) is provided at the bottom of the accommodating groove (3), the large end of the countersunk through hole (8) is away from the bidirectional holding electromagnet (2), and a screw (9) is installed in the countersunk through hole (8), and the screw (9) is used to fasten the bidirectional holding electromagnet (2).

5. The electromagnetic locking device of an airborne turntable according to claim 4, characterized in that: The countersunk through hole (8) is an oblong hole, and the long side of the countersunk through hole (8) is parallel to the connecting rod (4).

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