Radar antenna heating device

Abstract

The utility model discloses a radar antenna heating device, which relates to the technical field of radar antennas and comprises a hollow hemispherical protective cover and a hollow bearing circular ring fixed on the plane of the protective cover, and further comprises a driving unit and a heating unit which are arranged on the bearing circular ring, the driving unit comprises a positioning circular ring, an annular gear, a rotating shaft, a gear disc and a driving motor, an annular groove is formed in the inner bottom surface of the bearing circular ring, and the positioning circular ring is movably arranged on the annular groove; each heating unit comprises a supporting frame, a positioning bolt, an arc-shaped heating strip and a semi-annular heating block. According to the utility model, the positioning ring fixedly arranged on the bottom surface of the annular gear can rotate on the annular groove in a manner of being matched with the annular gear for reciprocating rotation, the heating unit can be in reciprocating contact with all curved surface areas of the hollow hemispherical protective cover along with rotation of the annular gear, and accumulated snow covering the protective cover can be fully heated and melted; and the equipment heating effect is sufficient and wide in range.

Description

Technical Field

[0001] The utility model relates to the technical field of radar antennas, in particular to a radar antenna heating device. Background Art

[0002] Radar is a device used to radiate and receive electromagnetic waves and determine the direction of detection. Some radar antennas, such as millimeter wave cloud meters, point fixedly upward. In rainy weather, such radar antennas may accumulate water, which will cause electromagnetic waves to be unable to radiate and complete detection. In snowy weather, a layer of snow will cover the top of the small radar antenna, which will cause a large attenuation of electromagnetic waves, causing the radar to not work properly. In recent years, with the continuous improvement of the performance of small radars, the power of radar systems has also increased, and the heat generated by radar system components has also increased. Especially in summer, excessively high temperatures can easily affect the service life of the radar.

[0003] The publication (announcement) number is CN214378794U, which discloses a radar antenna heating device, including a protective cover, a heating interlayer is provided inside the protective cover, the two outer side walls of the protective cover are respectively fixedly connected with a first fixing frame and a second fixing frame, the surface of the first fixing frame is fixedly connected with a heating box, the surface of the second fixing frame is provided with a refrigeration box, and the two ends of the heating box are respectively provided with a hot air outlet and a hot air exhaust port. When in use, the utility model can circulate hot air to the inside of the heating interlayer through the heating box for heating, so that the snow on the top of the protective cover melts, so as not to hinder the normal operation of the radar antenna. The space of the heating interlayer is small and only a small amount of hot air is needed to achieve heating. At the same time, the heat circulating back and forth can make the heating interlayer heat up quickly, reducing energy loss, and through the setting of the refrigeration box, the system components of the radar antenna can be cooled to avoid the high temperature in summer affecting the service life of the radar antenna, and it has certain practicality.

[0004] Although the above scheme can cool down the system components of the radar antenna, the heating operation requires a heating interlayer to be set on the protective cover and coordinated through a series of components such as a heating box, an exhaust fan, a heating plate, a semi-circular exhaust pipe and a semi-circular exhaust pipe. The heated gas is difficult to guide and circulate to various areas in the heating interlayer, and the heating effect of the equipment is not stable and sufficient. Moreover, the coordination between the pipeline and the heating interlayer makes it difficult to assemble and maintain the heating components of the equipment. For this reason, we propose a radar antenna heating device. Utility Model Content

[0005] The main purpose of the utility model is to provide a radar antenna heating device, which solves the problems of insufficient and stable heating effect of the equipment and troublesome assembly and maintenance of the heating components of the equipment through the provision of a driving unit and a heating unit.

[0006] To solve the above technical problems, the present utility model is achieved through the following technical solutions: A radar antenna heating device includes a protective cover in the shape of a hollow hemisphere and a load-bearing ring fixed on the plane of the protective cover and hollow inside, and further includes: a driving unit and a heating unit provided on the load-bearing ring, and the protective cover is made of a wave-transmitting material;

[0007] The driving unit includes a positioning ring, an annular gear, a rotating shaft, a gear disk and a driving motor. An annular groove is provided on the inner bottom surface of the load-bearing ring. The positioning ring is movably arranged on the annular groove. The annular gear is fixedly arranged on the top surface of the positioning ring. The rotating shaft is embedded and installed on the top surface of the load-bearing ring through a bearing. The gear disk is fixedly arranged on the end surface of the rotating shaft extending into the load-bearing ring, and the gear disk meshes with the annular gear. The driving motor is fixedly installed on the top surface of the load-bearing ring and its output end is connected to the top end of the rotating shaft;

[0008] The heating unit includes a support frame, a positioning bolt, an arc heating strip and a semi-circular heating block. A threaded hole is provided on the top surface of the annular gear, and the threaded hole is located inside the protective cover. The support frame is in a "U" shape and a positioning through hole is provided on the concave surface of its bottom. The positioning bolt movably penetrates through the positioning through hole and is assembled and fixed on the threaded hole. One end of the arc heating strip is connected to the top surface of the support frame, and the convex surface of the arc heating strip is arranged close to the inner wall of the curved surface of the protective cover. The outer peripheral surface of the middle end of the semi-circular heating block is connected to the other end of the arc heating strip, and the center of the semi-circular heating block is located on the vertical central axis of the protective cover.

[0009] Preferably, both the rotating shaft and the driving motor are located outside the protective cover.

[0010] Preferably, two groups of the heating units are provided and are symmetrically arranged on the horizontal plane of the transverse center of the annular gear.

[0011] Preferably, a power supply is installed on the top surface of the annular gear, and the power supply is located inside the protective cover.

[0012] Preferably, a protective box is fixedly installed on the top surface of the load-bearing ring, and the protective box is located outside the driving motor.

[0013] Preferably, mounting blocks are fixedly arranged on the outer peripheral surface of the load-bearing ring, and mounting holes are provided on the mounting blocks.

[0014] Preferably, three mounting blocks are provided and are distributed in an equidistant circumferential array.

[0015] Compared with the prior art, the radar antenna heating device of the present utility model has the following beneficial effects:

[0016] 1. In the present utility model, by providing a driving unit, after the heating unit is installed on the annular gear, it can be located outside the radar antenna within the protective cover. Through the operation of the driving motor, the rotation shaft can be controlled to rotate on the bearing ring. The gear disc can be driven to drive the annular gear meshed with it inside the bearing ring. The positioning ring fixedly arranged on the bottom surface of the annular gear can rotate on the annular groove to cooperate with the reciprocating rotation of the annular gear. The heating unit can reciprocally contact all the curved surface areas of the hollow hemispherical protective cover as it rotates with the annular gear, and the snow covering the protective cover can be fully heated and melted, with the heating effect of the device being sufficient and the range being extensive.

[0017] 2. In the present utility model, by providing a heating unit, the "U"-shaped support frame can align the positioning through holes opened on its bottom concave surface with the threaded holes on the top surface of the annular gear. After rotating and assembling the positioning bolts into the threaded holes, the support frame can help fix the arc-shaped heating strip and the semi-circular heating block to the top surface area of the annular gear located inside the protective cover. The arc-shaped heating strip with its convex surface close to the inner wall of the curved surface of the protective cover initially ensures the heating effect. The semi-circular heating block can further heat the center of the top of the concave surface of the protective cover while avoiding the output end of the radar antenna located on the vertical central axis of the protective cover to ensure its working effect. After detaching the positioning bolts, the arc-shaped heating strip and the semi-circular heating block can be removed from the protective cover for maintenance. The heating effect of the device is stable while the assembly and maintenance are simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is the overall structural schematic diagram of a radar antenna heating device of the present utility model;

[0020] Figure 2 is the top view structural schematic diagram of a radar antenna heating device of the present utility model;

[0021] Figure 3 For the present utility model Figure 2 is the sectional structural schematic diagram at A-A in the present utility model;

[0022] Figure 4 For the present utility model Figure 3 is the sectional structural schematic diagram at B-B in the present utility model.

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Protective cover;

[0025] 2. driving unit; 201. positioning ring; 202. ring gear; 203. rotating shaft; 204. gear plate; 205. driving motor;

[0026] 3. Heating unit; 301. Support frame; 302. Positioning bolt; 303. Arc heating strip; 304. Semi-annular heating block;

[0027] 4. Bearing ring;

[0028] 5. Power supply;

[0029] 6. Protective box;

[0030] 7. Install the block. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 an indirect connection 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. Example

[0034] like Figure 2 , Figure 3 as well as Figure 4 As shown, a radar antenna heating device comprises a hollow hemispherical protective cover 1 and a hollow bearing ring 4 fixed on the plane of the protective cover 1, and further comprises: a driving unit 2 and a heating unit 3 arranged on the bearing ring 4;

[0035] The driving unit 2 includes a positioning ring 201, an annular gear 202, a rotating shaft 203, a gear disc 204, and a driving motor 205. An annular groove is formed on the inner bottom surface of the bearing ring 4. The positioning ring 201 is movably arranged on the annular groove. The annular gear 202 is fixedly arranged on the top surface of the positioning ring 201. The rotating shaft 203 is embedded and installed on the top surface of the bearing ring 4 through a bearing. The gear disc 204 is fixedly arranged on the end surface of the rotating shaft 203 extending into the bearing ring 4, and the gear disc 204 meshes with the annular gear 202. The driving motor 205 is fixedly installed on the top surface of the bearing ring 4 and its output end is connected to the top end of the rotating shaft 203;

[0036] The heating unit 3 includes a support frame 301, positioning bolts 302, an arc-shaped heating strip 303, and a semi-circular heating block 304. Threaded holes are formed on the top surface of the annular gear 202, and the threaded holes are located inside the protective cover 1. The support frame 301 is in a "U" shape and positioning through holes are formed on the concave surface of its bottom. The positioning bolts 302 movably penetrate through the positioning through holes and are assembled and fixed on the threaded holes. One end of the arc-shaped heating strip 303 is connected to the top surface of the support frame 301, and the convex surface of the arc-shaped heating strip 303 is arranged close to the inner wall of the curved surface of the protective cover 1. The middle outer peripheral surface of the semi-circular heating block 304 is connected to the other end of the arc-shaped heating strip 303, and the center of the semi-circular heating block 304 is located on the vertical central axis of the protective cover 1.

[0037] Furthermore, two groups of heating units 3 are provided and are symmetrically arranged on the horizontal plane of the transverse center of the annular gear 202.

[0038] Furthermore, a protective box 6 is fixedly installed on the top surface of the bearing ring 4, and the protective box 6 is located outside the driving motor 205.

[0039] Furthermore, mounting blocks 7 are fixedly arranged on the outer peripheral surface of the bearing ring 4, and mounting holes are formed in the mounting blocks 7.

[0040] Furthermore, three mounting blocks 7 are provided and are distributed in an equidistant circumferential array.

[0041] The driving unit 2 enables the device to have a sufficient and wide heating effect. Embodiment

[0042] As Figure 1 and Figure 3 shown, a radar antenna heating device includes a protective cover 1 in the shape of a hollow hemisphere and a bearing ring 4 fixed on the plane of the protective cover 1 and hollow inside, and further includes: a driving unit 2 and a heating unit 3 arranged on the bearing ring 4;

[0043] The driving unit 2 includes a positioning ring 201, an annular gear 202, a rotating shaft 203, a gear disc 204 and a driving motor 205. An annular groove is formed on the inner bottom surface of the bearing ring 4. The positioning ring 201 is movably arranged on the annular groove. The annular gear 202 is fixedly arranged on the top surface of the positioning ring 201. The rotating shaft 203 is installed on the top surface of the bearing ring 4 through a bearing. The gear disc 204 is fixedly arranged on the end surface of the rotating shaft 203 extending into the bearing ring 4, and the gear disc 204 meshes with the annular gear 202. The driving motor 205 is fixedly installed on the top surface of the bearing ring 4 and its output end is connected to the top end of the rotating shaft 203;

[0044] The heating unit 3 includes a support frame 301, positioning bolts 302, arc-shaped heating strips 303 and semi-circular heating blocks 304. Threaded holes are formed on the top surface of the annular gear 202, and the threaded holes are located inside the protective cover 1. The support frame 301 is in a "U" shape and positioning through holes are formed on the concave surface of its bottom. The positioning bolts 302 movably penetrate through the positioning through holes and are assembled and fixed on the threaded holes. One end of the arc-shaped heating strip 303 is connected to the top surface of the support frame 301, and the convex surface of the arc-shaped heating strip 303 is arranged close to the inner wall of the curved surface of the protective cover 1. The middle outer peripheral surface of the semi-circular heating block 304 is connected to the other end of the arc-shaped heating strip 303, and the center of the semi-circular heating block 304 is located on the vertical central axis of the protective cover 1.

[0045] Furthermore, both the rotating shaft 203 and the driving motor 205 are located outside the protective cover 1.

[0046] Furthermore, a power supply 5 is installed on the top surface of the annular gear 202, and the power supply 5 is located inside the protective cover 1.

[0047] Furthermore, mounting blocks 7 are fixedly arranged on the outer peripheral surface of the bearing ring 4, and mounting holes are formed on the mounting blocks 7.

[0048] Furthermore, there are three mounting blocks 7 in total and they are distributed in an equidistant circumferential array.

[0049] The heating unit 3 enables the equipment to have a stable heating effect while being simple in assembly and maintenance.

[0050] The working principle of the present utility model is as follows:

[0051] The support frame 301 uses the positioning through hole on the concave surface at the bottom thereof to align with the threaded hole on the top surface of the ring gear 202. After the positioning bolt 302 is rotated to be assembled on the threaded hole, the support frame 301 helps the arc heating strip 303 and the semi-annular heating block 304 to be fixed to the top surface area of ​​the ring gear 202 located on the inner side of the protective cover 1. The arc heating strip 303 with the convex surface close to the inner wall of the curved surface of the protective cover 1 initially ensures the heating effect. The semi-annular heating block 304 further heats the top center of the concave surface of the protective cover 1 while avoiding the output end of the radar antenna located on the vertical center axis of the protective cover 1 to ensure its working The arc-shaped heating strip 303 and the semi-circular heating block 304 can be removed from the protective cover 1 for maintenance after the positioning bolt 302 is removed. The driving motor 205 controls the rotating shaft 203 to rotate on the load-bearing ring 4. The gear plate 204 is driven inside the load-bearing ring 4 to transmit the ring gear 202 meshing with it. The positioning ring 201 fixed on the bottom surface of the ring gear 202 rotates on the annular groove to cooperate with the reciprocating rotation of the ring gear 202. The heating unit 3 reciprocates with the rotation of the ring gear 202 to contact all curved surface areas of the hollow hemispherical protective cover 1, and the snow covering the protective cover 1 is fully heated and melted.

[0052] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A radar antenna heating device, comprising a hollow hemispherical protective cover (1) and a hollow bearing ring (4) fixed on the plane of the protective cover (1), characterized in that: It further includes: A driving unit (2) and a heating unit (3) arranged on a bearing ring (4); The driving unit (2) includes a positioning ring (201), an annular gear (202), a rotating shaft (203), a gear disk (204) and a driving motor (205). An annular groove is formed on the inner bottom surface of the bearing ring (4). The positioning ring (201) is movably arranged on the annular groove. The annular gear (202) is fixedly arranged on the top surface of the positioning ring (201). The rotating shaft (203) is embedded and installed on the top surface of the bearing ring (4) through a bearing. The gear disk (204) is fixedly arranged on the end surface of the rotating shaft (203) extending into the bearing ring (4), and the gear disk (204) meshes with the annular gear (202). The driving motor (205) is fixedly installed on the top surface of the bearing ring (4) and its output end is connected to the top end of the rotating shaft (203); The heating unit (3) includes a support frame (301), positioning bolts (302), an arc-shaped heating strip (303) and a semi-circular heating block (304). A threaded hole is formed on the top surface of the annular gear (202), and the threaded hole is located inside the protective cover (1). The support frame (301) is in a "U" shape and a positioning through hole is formed on the concave surface of its bottom. The positioning bolts (302) movably penetrate through the positioning through hole and are assembled and fixed on the threaded hole. One end of the arc-shaped heating strip (303) is connected to the top surface of the support frame (301), and the convex surface of the arc-shaped heating strip (303) is arranged close to the inner wall of the curved surface of the protective cover (1). The middle outer peripheral surface of the semi-circular heating block (304) is connected to the other end of the arc-shaped heating strip (303), and the center of the semi-circular heating block (304) is located on the vertical central axis of the protective cover (1).

2. A radar antenna heating device according to claim 1, characterized in that: Both the rotating shaft (203) and the driving motor (205) are located outside the protective cover (1).

3. The radar antenna heating device according to claim 1, characterized in that: There are two groups of the heating units (3) and they are symmetrically arranged on the horizontal plane of the transverse center of the annular gear (202).

4. The radar antenna heating device according to claim 1, characterized in that: A power supply (5) is installed on the top surface of the annular gear (202), and the power supply (5) is located inside the protective cover (1).

5. The radar antenna heating device according to claim 1, characterized in that: A protective box (6) is fixedly installed on the top surface of the bearing ring (4), and the protective box (6) is located outside the driving motor (205).

6. The radar antenna heating device according to claim 1, characterized in that: Installation blocks (7) are fixedly arranged on the outer peripheral surface of the bearing ring (4), and mounting holes are formed in the installation blocks (7).

7. The radar antenna heating device according to claim 6, characterized in that: There are three installation blocks (7) in total and they are distributed in an equidistant circumferential array.

Images