An azimuth mechanism

Abstract

The application discloses an azimuth mechanism and belongs to the technical field of precision instruments and mechanical assembly, which comprises a shell, an azimuth shaft system, a friction part, a transmission device and a release device. The azimuth shaft system comprises a fixing part, a supporting part, a rotating part and a first connecting part. The supporting part is fixedly connected to the fixing part, the rotating part is rotatably connected to the fixing part, and the rotating part is connected to the shell through the first connecting part. The transmission device comprises a first mounting part, a friction wheel, a transmission part and a shaft. The release device comprises a second mounting part, a release connecting rod, a second connecting part and a first operating part. A guide rail is mounted on the inner wall of the second mounting part, and the first mounting part is connected to the guide rail in a matched mode. The azimuth mechanism further comprises a third connecting part and a second operating part, and the transmission part is connected to the second operating part through the third connecting part. The azimuth mechanism can realize quick large-range rotation and accurate fine adjustment simultaneously, has a simple overall structure, is convenient to operate, and has good application prospect and use value.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of precision instruments and mechanical assembly, and particularly relates to an azimuth mechanism. BACKGROUND

[0002] The azimuth mechanism is a device for adjusting the azimuth angle of an object, that is, a horizontal angle adjusting and measuring mechanism, and is widely used in the fields of aerospace, mechanical engineering, military application, photography, etc. In the field of military application, the azimuth mechanism is applied to radar devices, angle measuring devices of photoelectric reconnaissance equipment, etc.

[0003] In the field of photoelectric reconnaissance, the azimuth mechanism is required to quickly rotate in a large range when searching for a target. However, after the target is found, accurate fine adjustment is required to measure and lock the target. However, the current azimuth mechanism is difficult to simultaneously realize quick rotation in a large range and accurate fine adjustment. SUMMARY

[0004] In view of one or more of the above defects or improvement requirements of the prior art, the present application provides an azimuth mechanism which can simultaneously realize quick rotation and accurate fine adjustment.

[0005] To achieve the above-mentioned purpose, the present application provides an azimuth mechanism which comprises a shell, an azimuth shaft system, a friction member, a transmission device and a release device; the release device is fixedly connected to the shell;

[0006] The azimuth shaft system comprises a fixed member, a support member, a rotating member and a first connecting member; the support member is fixedly connected to the fixed member, the rotating member is rotatably connected to the fixed member, and the rotating member is connected to the shell through the first connecting member; the friction member is fixedly connected to the support member;

[0007] The transmission device comprises a first mounting member, a friction wheel, a transmission member and an intermediate member; the friction wheel is fixedly connected to the intermediate member, one side of the friction wheel can abut against the friction member, and the other side of the friction wheel can abut against the transmission member; the transmission member is mounted on the first mounting member;

[0008] The release device comprises a second mounting member, a release connecting rod, a second connecting member and a first operating member; the second mounting member is fixedly connected to the shell, a guide rail is mounted on the inner wall of the second mounting member, the first mounting member is connected to the guide rail in a matched mode, so that the transmission device can move along the guide rail; one end of the release connecting rod is connected to the first mounting member, and the other end of the release connecting rod is connected to the first operating member through the second connecting member; the first operating member can drive the first mounting member to move;

[0009] Further comprising a third connecting member and a second operating member; the transmission member is connected to the second operating member through the third connecting member; the second operating member can drive the transmission member to rotate.

[0010] As a further improvement of the present application, a limiting member is mounted on the top of the transmission member, and the fitting size between the transmission member and the friction wheel can be adjusted by adjusting the position of the limiting member.

[0011] As a further improvement of the present application, a spring leaf and a ball are further mounted on the top of the transmission member, the ball is located between the transmission member and the limiting member, the ball can reduce the friction torque when the transmission member rotates, and the spring leaf can give the transmission member an axial torque through the ball by elastic deformation;

[0012] The middle part of the transmission member is further provided with a first resistance reducing member.

[0013] As a further improvement of the present application, the transmission device further comprises a guide column which is fixedly connected to the first mounting member.

[0014] The guide column is sleeved with an elastic member, and the second mounting member is fixedly connected with an adjusting seat corresponding to the elastic member, and the elastic member can be placed in the adjusting seat.

[0015] As a further improvement of the present application, the releasing device further comprises a fourth connecting member, the releasing connecting rod is connected to the first mounting member through the fourth connecting member, the fourth connecting member comprises a cylindrical part, the cylindrical part is in clearance fit with the releasing connecting rod, and the releasing connecting rod can move along the fourth connecting member.

[0016] As a further improvement of the present application, a second resistance reducing member is mounted on the top between the support member and the rotating member, and a third resistance reducing member is mounted on the bottom, the inner ring of the third resistance reducing member comprises a first pressing ring, and the fitting coaxiality between the support member and the rotating member can be adjusted by adjusting the first pressing ring.

[0017] As a further improvement of the present application, the transmission device further comprises an adjusting member, the transmission member is mounted on the adjusting member, and the two are integrally mounted on the first mounting member.

[0018] As a further improvement of the present application, a trapezoidal thread is arranged between the releasing connecting rod and the second connecting member.

[0019] As a further improvement of the present application, a fourth resistance reducing member is further mounted on both ends of the intermediate member.

[0020] As a further improvement of the present application, a pressing plate and a friction plate are further arranged between the second connecting member and the second mounting member.

[0021] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0022] Overall, compared with the prior art, the above technical solutions conceived by the present application have the beneficial effects including:

[0023] (1) The orientation mechanism of the present application realizes adjustment in different situations by setting two handwheels, one of which can realize rapid large-range rotation with other devices, and the other of which can realize precise fine adjustment with other devices. At the same time, the components are simultaneously arranged in the same equipment, and the overall structure is simple and easy to operate, having good application prospects and use value.

[0024] (2) The orientation mechanism of the present application is connected with the orientation shaft system and the transmission device through the friction member, forming friction transmission and worm gear transmission, which can realize rapid large-range rotation and precise fine adjustment during the rotation of the operating member, and at the same time improve stability, which is more conducive to operation and use.

[0025] (3) The orientation mechanism of the present application realizes rapid orientation rotation of the hand-held shell by reversing the first operating member, the first operating member moving the transmission device outward through the disengagement connecting rod, and the friction member and the friction wheel being disengaged. When high-precision fine adjustment is needed, the first operating member is rotated, the first operating member pushes the friction wheel into contact with the friction member through the disengagement connecting rod, the second operating member drives the transmission member to rotate, and the transmission member realizes high-precision fine adjustment of the orientation mechanism through the friction transmission between the friction wheel and the friction member.

[0026] (4) The orientation mechanism of the present application comprises a first-stage worm gear transmission composed of the friction wheel and the transmission member, and a second-stage friction transmission composed of the friction wheel and the friction member. When high-precision fine adjustment is needed, the second operating member drives the transmission device to drive the shell to rotate. When rapid rotation is needed, the friction wheel and its related devices are unlocked, the orientation shaft system rotates rapidly, and the center distance is adjusted through the cooperation of bearings, elastic members and other related components. The transmission torque and motion of the lead screw nut mechanism formed by the trapezoidal thread between the disengagement connecting rod and the second connecting member and the first operating member are realized through the mechanism, realizing the unification of rapid rotation and high-precision fine adjustment.

[0027] (5) The orientation mechanism of the present application can realize rapid large-range rotation and precise fine adjustment simultaneously, can be used in more scenes, and has a wide range of applications. At the same time, the overall structure is simple and easy to operate, which is convenient for operators to operate, and has great application prospects. The internal structure is closely connected, and the whole realizes rapid large-range rotation and precise fine adjustment, which is convenient for searching for targets and locking targets after discovering targets. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to make the technical solutions in the embodiments of the present application clearer, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0029] Figure 1 is a whole structure sectional view of the azimuth mechanism in the embodiment of the present application;

[0030] Figure 2 is an azimuth shaft system sectional view of the azimuth mechanism in the embodiment of the present application;

[0031] Figure 3 is a connection diagram of the azimuth shaft system and the friction member of the azimuth mechanism in the embodiment of the present application;

[0032] Figure 4 is a friction member diagram of the azimuth mechanism in the embodiment of the present application;

[0033] Figure 5 is a sectional view of the transmission device of the azimuth mechanism in the embodiment of the present application;

[0034] Figure 6 is another sectional view of the transmission device of the azimuth mechanism in the embodiment of the present application;

[0035] Figure 7 is a friction wheel diagram of the azimuth mechanism in the embodiment of the present application;

[0036] Figure 8 is a sectional view of the release device of the azimuth mechanism in the embodiment of the present application;

[0037] In all the drawings, the same reference signs represent the same technical features, specifically:

[0038] 1, housing; 2, azimuth shaft system; 3, friction member; 4, transmission device; 5, release device; 6, third connecting member; 7, second operating member;

[0039] 201, fixing member; 202, supporting member; 203, rotating member; 204, first connecting member; 205, retaining frame; 206, ball; 207, third resistance-reducing member; 208, first pressing ring; 209, bottom cover plate;

[0040] 401, first mounting member; 402, friction wheel; 403, transmission member; 404, intermediate member; 405, limiting member; 406, spring piece; 407, ball; 408, first resistance-reducing member; 409, guide column; 410, adjusting member; 411, fourth resistance-reducing member; 412, second pressing ring; 413, third pressing ring;

[0041] 501, second mounting member; 502, disengagement connecting rod; 503, second connecting member; 504, first operating member; 505, guide rail; 506, elastic member; 507, adjusting seat; 508, fourth connecting member; 509, pressing plate; 510, friction plate. DETAILED DESCRIPTION

[0042] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0045] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in horizontal height than the second feature.

[0047] Embodiment:

[0048] Please refer to Figures 1-8 The orientation mechanism in the preferred embodiment of the present application includes a housing 1, an orientation shaft system 2, a friction piece 3, a transmission device 4 and a release device 5. The orientation mechanism is also connected with a load, and the load is fixedly connected with the release device 5 to the housing 1.

[0049] Specifically, as shown in Figure 2 and Figure 3 , the orientation shaft system 2 in the preferred embodiment includes a fixed piece 201, a support piece 202, a rotating piece 203 and a first connecting piece 204. The support piece 202 is fixedly connected to the fixed piece 201, the rotating piece 203 is rotatably connected to the fixed piece 201, and the rotating piece 203 is connected to the housing 1 through the first connecting piece 204. The friction piece 3 is fixedly connected to the support piece 202.

[0050] Among them, it can be understood that the fixed piece 201 is a base, which is the support foundation of the entire orientation mechanism, and in specific implementation, high-strength lightweight aluminum alloy can be used to ensure the stability of the entire mechanism. The support piece 202 can be a support shaft, and the rotating piece 203 can be a rotating shaft. The support piece 202 is the stator of the orientation shaft system 2, and the rotating piece 203 is the rotor of the orientation shaft system 2. In specific implementation, the support shaft and the rotating shaft are made of high-strength wear-resistant bearing steel GCr15, and the surface hardness after heat treatment reaches 56HRC~62HRC, so as to withstand long-term wear.

[0051] Further, as shown in Figure 2 , in the preferred embodiment, a second drag reduction piece is installed at the top between the support piece 202 and the rotating piece 203, and a third drag reduction piece 207 is installed at the bottom. The inner ring of the third drag reduction piece 207 includes a first compression ring 208, and adjusting the first compression ring 208 can adjust the fit shaft degree between the support piece 202 and the rotating piece 203, so as to ensure the rotation accuracy of the orientation shaft system 2.

[0052] It can be understood that, in the specific implementation, the second friction-reducing member includes the retaining frame 205 and the rolling balls 206 to form a bulk bearing, and the third friction-reducing member 207 can be an angular contact bearing, and the inner ring of the angular contact bearing has the first pressing ring 208. The sliding friction between the support shaft and the rotating shaft is converted into rolling friction by the rolling balls 206 and the angular contact bearing, so as to reduce the frictional resistance in the operation of the shafting. By adjusting the first pressing ring 208 for fixing the inner ring of the angular contact bearing, the same shafting degree between the support shaft and the rotating shaft is adjusted, so as to ensure the rotation accuracy of the azimuth shafting 2.

[0053] The first connecting member 204 can be a transition plate. After adjustment, the jump degree of the mounting surface of the top of the rotating member 203 for fixing the transition plate is less than 0.01 mm. The first connecting member 204 is used to connect the rotating member 203 and the housing 1, and the rotation of the azimuth shafting 2 is transmitted to the load. The inner diameter of the first connecting member 204 is matched with the rotating member 203, and the outer diameter is matched with the housing 1 in the high-precision shaft hole, so as to ensure the installation accuracy of the load on the azimuth shafting 2. The housing 1 is a U-shaped structural member, and the housing 1 is fixed to the first connecting member 204 by screws. The azimuth shafting 2 is also provided with a bottom cover plate 209 at the bottom, which further seals the device.

[0054] In the specific implementation, the friction member 3 can be a friction ring, as shown in Figure 4 The friction member 3 is fixed to the support member 202 by screws, and the friction member 3 and the friction wheel 402 in the following text form a friction transmission. The friction member 3 is a stator of the friction transmission, which is made of wear-resistant lead brass rod HPb59-1. In order to increase the friction coefficient between the friction wheels 402 in the friction transmission, the outer circle of the friction ring is provided with straight lines with a modulus of 0.3.

[0055] Further, as shown in Figure 5 and Figure 6 The transmission device 4 in the preferred embodiment includes a first mounting member 401, a friction wheel 402, a transmission member 403 and an intermediate member 404. The friction wheel 402 is fixedly connected to the intermediate member 404, and one side of the friction wheel 402 can abut against the friction member 3, and the other side can abut against the transmission member 403. The transmission member 403 is installed on the first mounting member 401. The transmission member 403 is a worm, and forms a worm and gear transmission with the friction wheel 402.

[0056] As shown in Figure 7It can be understood that the friction wheel 402 has a worm gear section and a friction ring section, the worm gear section is in abutment with the transmission member 403, and the friction ring section is in abutment with the friction member 3. The friction wheel 402 is made of a wear-resistant material lead brass rod HPb59-1, and the worm gear section and the friction ring section are formed on the lead brass rod HPb59-1. The worm gear section has a module of 0.5 and a tooth number of 48. The friction ring section has a cylindrical surface diameter of 26 mm, and straight lines with a module of 0.3 are formed on the cylindrical surface. The friction ring section and the friction member 3 form a friction transmission, and the worm gear section and the transmission member 403 form a worm gear transmission. The friction wheel 402 connects the friction transmission and the worm gear transmission.

[0057] In detail, in the preferred embodiment, the friction wheel 402 is fixedly connected to the intermediate member 404 through a pin, and the intermediate member 404 can be selected as a shaft. In the preferred embodiment, the intermediate member 404 is further provided with a fourth resistance-reducing member 411 and a second pressing ring 412 at two ends thereof. The fourth resistance-reducing member 411 can be selected as a deep groove ball bearing 628 / 9, which can reduce the friction torque when the friction wheel 402 rotates.

[0058] It can be understood that the first mounting member 401 is a fixed base. In the preferred embodiment, the transmission device 4 further comprises an adjusting member 410, the transmission member 403 is mounted on the adjusting member 410, and the adjusting member 410 and the transmission member 403 are integrally mounted on the first mounting member 401. The third pressing ring 413 is arranged between the transmission member 403 and the adjusting member 410. The transmission member 403 is selected as a worm, and has a module of 0.5 and a pitch circle diameter of 8 mm.

[0059] Further, in the preferred embodiment, the transmission member 403 is provided with a limiting member 405 at the top thereof. In the specific implementation, the limiting member 405 can be a limiting plate. By adjusting the position of the limiting member 405, the matching size between the transmission member 403 and the friction wheel 402 can be adjusted, so as to increase the transmission precision of the worm gear.

[0060] In the preferred embodiment, the transmission member 403 is further provided with a spring piece 406 and a ball 407 at the top thereof. The ball 407 is located between the transmission member 403 and the limiting member 405. The ball 407 can reduce the friction torque when the transmission member 403 rotates. The spring piece 406 can give the transmission member 403 an axial torque through the ball 407 by means of elastic deformation, so as to eliminate the radial swing caused by the short support length and large input force arm of the transmission member 403.

[0061] The middle part of the transmission member 403 in the preferred embodiment is further provided with a first friction-reducing member 408. In actual implementation, the first friction-reducing member 408 can be an angular contact bearing 7000C, and the ball 407 can be a steel ball. The first friction-reducing member 408 can form an adjusting assembly together with the spring leaf 406, the ball 407 and the limiting member 405. In addition to adjusting the fitting size between the transmission member 403 and the friction wheel 402 by adjusting the up-and-down position of the limiting member 405 to improve the precision of the worm gear transmission, the steel ball can reduce the friction torque when the worm rotates, and the spring leaf 406 can give the worm an axial torque through the steel ball by means of elastic deformation to eliminate the radial swing caused by the short support length and large input arm of the worm.

[0062] In detail, the release device 5 in the preferred embodiment includes a second mounting member 501, a release connecting rod 502, a second connecting member 503 and a first operating member 504. The second mounting member 501 is fixedly connected to the housing 1, and a guide rail 505 is mounted on the inner wall of the second mounting member 501. The first mounting member 401 is connected to the guide rail 505 in a matching manner, so that the transmission device 4 can move along the guide rail 505. One end of the release connecting rod 502 is connected to the first mounting member 401, and the other end is connected to the first operating member 504 through the second connecting member 503. The first operating member 504 can drive the first mounting member 401 to move.

[0063] It can be understood that, as shown in Figure 8 , the second mounting member 501 can be a bracket which is fixed to the housing 1. The left and right sides of the inner wall of the bracket are provided with the guide rail 505 and a gasket. The first mounting member 401 is connected to the guide rail 505 in a V-shaped matching manner, so that the transmission device 4 can also move back and forth along the guide rail 505. The second connecting member 503 can be a connecting plate.

[0064] More specifically, as shown in Figure 6 , the transmission device 4 in the preferred embodiment further includes a guide column 409 which is fixedly connected to the first mounting member 401. The guide column 409 is sleeved with an elastic member 506, and a adjusting seat 507 is fixedly connected to the second mounting member 501 corresponding to the elastic member 506. The elastic member 506 can be arranged in the adjusting seat 507. The elastic member 506 can be a spring which is arranged in the adjusting seat 507. When the first mounting member 401 moves along the guide rail 505, the elastic member 506 is compressed or stretched, and the elastic member 506 generates an auxiliary force on the first mounting member 401. The size of the torque of the elastic member 506 can be adjusted, so that the friction torque of the friction wheel 402 during locking is increased.

[0065] Preferably, the release device 5 in the preferred embodiment further includes a fourth connecting member 508. The release connecting rod 502 is connected to the first mounting member 401 through the fourth connecting member 508. The fourth connecting member 508 includes a cylindrical part which is connected to the release connecting rod 502 in a shaft hole gap matching manner. The release connecting rod 502 can move along the fourth connecting member 508.

[0066] It is understood that the fourth connector 508 is a special screw, and the release connecting rod 502 is fixed to the first mounting member 401 by the special screw. The fourth connector 508 may include a threaded part and a cylindrical part. The cylindrical part and the release connecting rod 502 are in a shaft hole clearance fit, and the release connecting rod 502 can move along the fourth connector 508.

[0067] More preferably, in the preferred embodiment, a high-precision trapezoidal thread is formed between the release connecting rod 502 and the second connecting member 503. The first operating member 504 can be a handwheel, and a screw-nut mechanism is formed between the trapezoidal thread and the first operating member 504. When the first operating member 504 is rotated, the release connecting rod 502 can be driven to move back and forth through the formed screw-nut mechanism, thereby driving the first mounting member 401 to move back and forth, realizing the locking and unlocking of the transmission device 4.

[0068] In a preferred embodiment, the release device 5 further includes a pressure plate 509 and a friction plate 510, which are disposed between the second connector 503 and the second mounting member 501. The release connecting rod 502, the second connector 503, the pressure plate 509, the friction plate 510, and the first operating member 504 form a locking and release mechanism.

[0069] In addition, such as Figure 1 As shown, in the preferred embodiment, the orientation mechanism further includes a third connecting member 6 and a second operating member 7. The transmission member 403 is connected to the second operating member 7 via the third connecting member 6, and the second operating member 7 can drive the transmission member 403 to rotate. In specific implementations, the second operating member 7 can also be a handwheel, and the third connecting member 6 is a connecting plate. The second operating member 7, the third connecting member 6, and the transmission member 403 are fixed together. When the transmission device 4 is locked, the second operating member 7 is rotated, and the second operating member 7 realizes the subdivided rotation of the housing 1 through worm gear transmission and friction transmission.

[0070] In addition, in the preferred embodiment, the orientation mechanism also includes a sealing ring for sealing and dustproofing the entire mechanism.

[0071] In use, when rapid rotation is required, the first operating member 504 is rotated in the opposite direction. The first operating member 504 drives the transmission device 4 to move outward through the release connecting rod 502, disengaging the friction element 3 from the friction wheel 402, allowing the hand-held housing 1 to achieve rapid orientation rotation. When high-precision fine-tuning is required, the first operating member 504 is rotated. The first operating member 504 pushes the friction wheel 402 into contact with the friction element 3 through the release connecting rod 502. The second operating member 7 drives the transmission member 403 to rotate, and the transmission member 403 then achieves high-precision fine-tuning of the orientation mechanism through friction transmission between the friction wheel 402 and the friction element 3.

[0072] The friction wheel 402 and the transmission member 403 constitute a first-stage worm and gear transmission, the friction wheel 402 and the friction member 3 constitute a second-stage friction transmission, the second operation member 7 drives the transmission device 4 to drive when high-precision fine adjustment is used, and the shell 1 is driven to realize azimuth rotation. When fast rotation is used, the friction wheel 402 and the related devices are unlocked, the azimuth shaft system 2 is fast rotated, and the center distance is adjusted through the bearing and the elastic member 506 and other related components, the transmission torque and the movement between the trapezoidal thread between the connecting rod 502 and the second connecting member 503 and the screw nut mechanism formed by the first operation member 504 are disengaged, the unification of fast rotation and high-precision fine adjustment is realized through the mechanism, and the azimuth mechanism angle measurement accuracy is less than 1 mil when fine adjustment is used.

[0073] The azimuth mechanism in the application can realize fast wide-range rotation and accurate fine adjustment at the same time, can be used in more scenes, and has a wide application range. Meanwhile, the overall structure is simple, convenient to operate, convenient for operators to operate, and has a large application prospect. The internal structure is closely connected, the fast wide-range rotation and the accurate fine adjustment are realized as a whole, search for a target is facilitated, and the target can be locked after the target is found.

[0074] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the application, and is not used to limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application should be included in the protection range of the application.

Claims

1. A positioning mechanism, characterized in that, It includes a housing, an orientation shaft system, friction components, a transmission device, and a release device; the release device is fixedly connected to the housing. The azimuth axis system includes a fixing member, a support member, a rotating member, and a first connecting member; the support member is fixedly connected to the fixing member, the rotating member is rotatably connected to the fixing member, and the rotating member is connected to the housing through the first connecting member; the friction member is fixedly connected to the support member. The transmission device includes a first mounting component, a friction wheel, a transmission component, and an intermediate component; the friction wheel is fixedly connected to the intermediate component, one side of the friction wheel can abut against the friction component, and the other side can abut against the transmission component; the transmission component is mounted on the first mounting component; The release device includes a second mounting component, a release connecting rod, a second connecting component, and a first operating component; the second mounting component is fixedly connected to the housing, and a guide rail is installed on the inner wall of the second mounting component; the first mounting component is connected to the guide rail, so that the transmission device can move along the guide rail; one end of the release connecting rod is connected to the first mounting component, and the other end is connected to the first operating component through the second connecting component; the first operating component can drive the first mounting component to move. It also includes a third connector and a second operating member. The transmission member is connected to the second operating member through the third connector, and the second operating member can drive the transmission member to rotate.

2. The orientation mechanism according to claim 1, characterized in that, A limiting component is installed on the top of the transmission component. The fit dimensions between the transmission component and the friction wheel can be adjusted by adjusting the position of the limiting component.

3. The orientation mechanism according to claim 2, characterized in that, The top of the transmission component is also equipped with a spring and a ball. The ball is located between the transmission component and the limiting component. The ball can reduce the frictional torque when the transmission component rotates. The spring can provide the transmission component with an axial torque through the ball by relying on elastic deformation. The transmission component also has a first drag-reducing component installed in the middle.

4. The orientation mechanism according to claim 1, characterized in that, The transmission device further includes a guide column, which is fixedly connected to the first mounting component; The guide post is fitted with an elastic element, and the second mounting component is fixedly connected to an adjustment seat corresponding to the elastic element, and the elastic element can be placed inside the adjustment seat.

5. The orientation mechanism according to claim 1, characterized in that, The release device further includes a fourth connector, through which the release connecting rod is connected to the first mounting member. The fourth connector includes a cylindrical portion, which is in clearance fit with the release connecting rod via a shaft hole. The release connecting rod can move along the fourth connector.

6. The orientation mechanism according to any one of claims 1 to 5, characterized in that, A second drag-reducing component is installed at the top between the support component and the rotating component, and a third drag-reducing component is installed at the bottom. The inner ring of the third drag-reducing component includes a first pressure ring. Adjusting the first pressure ring can adjust the coaxiality of the fit between the support component and the rotating component.

7. The orientation mechanism according to any one of claims 1 to 5, characterized in that, The transmission device further includes an adjusting component, and the transmission component is mounted on the adjusting component, with both components being integrally mounted on the first mounting component.

8. The orientation mechanism according to any one of claims 1 to 5, characterized in that, A trapezoidal thread is provided between the release connecting rod and the second connecting member.

9. The orientation mechanism according to any one of claims 1 to 5, characterized in that, The intermediate component is also equipped with a fourth drag-reducing component at both ends.

10. The orientation mechanism according to any one of claims 1 to 5, characterized in that, The release device further includes a pressure plate and a friction plate, which are disposed between the second connector and the second mounting member.

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