Steering engine service life detection device

Abstract

The utility model relates to a steering engine service life detection device, relates to the technical field of unmanned aerial vehicles, and is used for solving the technical problems that in the prior art, the measurement precision of the working stroke and the loading condition of a steering engine is low, and the steering engine is easily damaged by a fixture for fixing the steering engine. The steering engine service life detection device comprises a support assembly, a sensor dial plate, a switching assembly, a transmission assembly, a loading assembly and a distance measurement assembly, a steering engine is connected with the loading assembly through the switching assembly and the transmission assembly, and the switching assembly is connected with the distance measurement assembly; the loading assembly comprises fixing seats, a shaft sleeve and a compression spring which are parallel to one another, a push-pull rod is further arranged between the fixing seats, and the push-pull rod penetrates through the shaft sleeve and the compression spring. According to the utility model, the protectiveness of the steering engine can be increased, the simulation of bidirectional periodic loading of the steering engine is realized, and the mobile measurement precision of the steering engine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a steering gear life detection device. Background Art

[0002] With the development of society and the continuous improvement of social science and technology, unmanned helicopters are gradually used in various fields. Unmanned helicopters not only have the advantages of vertical take-off and landing, hovering in the air, constant speed cruising and strong wind resistance, but also have the characteristics of low cost, high safety performance and strong environmental adaptability, and have received widespread attention in various fields.

[0003] At present, unmanned helicopters mainly control the size of the collective pitch of the blades through the movement of the servo. As the joint component of the unmanned helicopter movement, the function and performance of the servo directly affect the working ability of the unmanned helicopter, especially the life of the servo, which is directly related to the flight life of the unmanned helicopter.

[0004] At present, most servo manufacturers only adopt a relatively single measurement method when conducting life tests on servos. The measurement accuracy of the servo's working stroke, loading conditions, etc. is low, and the clamps used to fix the servos are prone to damage the servos. Utility Model Content

[0005] In view of the above analysis, the utility model aims to provide a servo life detection device to solve the technical problems in the prior art that the measurement accuracy of the servo's working stroke and loading conditions is low and the clamp for fixing the servo is easy to damage the servo.

[0006] The purpose of this utility model is mainly achieved through the following technical solutions:

[0007] A steering gear life detection device comprises a support assembly, an adapter assembly, a transmission assembly, a loading assembly and a distance measuring assembly, wherein the steering gear is connected to the loading assembly via the adapter assembly and the transmission assembly, and the adapter assembly is connected to the distance measuring assembly;

[0008] The loading assembly includes a locking nut, a fixing seat, a sleeve, a push-pull rod and a compression spring;

[0009] There are multiple fixing seats, the fixing seats are arranged in parallel, the fixing seats are connected to the support assembly, the shaft sleeves are arranged on the fixing seats, and the compression springs are arranged between the shaft sleeves;

[0010] The push-pull rod is arranged between the fixing seats, the push-pull rod passes through the shaft sleeve and the compression spring, the locking nuts are arranged at both ends of the push-pull rod, the push-pull rod is connected to the locking nuts, and the push-pull rod is connected to the transmission component.

[0011] Further, the bushing includes a sleeve and a flange. The sleeve penetrates through the fixing base, and the flange is provided on the end face of the sleeve between the two fixing bases. The diameter of the flange is larger than that of the sleeve.

[0012] Further, the compression spring connects the flanges between the fixing bases.

[0013] Further, it further includes a sensor dial. The support assembly includes a bottom plate, a fixing panel, and a support. The sensor dial is connected to the fixing panel, and the support is connected to the steering gear.

[0014] Further, the adapter assembly includes an adapter seat. The adapter seat, the support, the push-pull rod, the compression spring, and the connection head of the bushing are coaxial with the connection head of the steering gear.

[0015] Further, the distance measuring assembly includes a guide rail and a slider. The guide rail is provided on the bottom plate, the slider is provided on the guide rail, and the slider is connected to the adapter seat.

[0016] Further, the distance measuring assembly further includes a grating ruler fixing member and a grating ruler. The adapter seat is connected to the grating ruler fixing member, and the grating ruler is connected to the grating ruler fixing member.

[0017] Further, the distance measuring assembly further includes a grating dial fixing seat and a grating dial. The grating dial fixing seat is connected to the bottom plate, and the grating dial is fixed on the grating dial fixing seat.

[0018] Further, the adapter assembly further includes an adapter joint and a bearing. One end of the adapter joint is connected to the connection head, and the other end is connected to the transmission assembly. The bearing fixes the adapter joint on the adapter seat.

[0019] Further, the transmission assembly includes an adapter screw and a tension-compression sensor. One end of the adapter screw is connected to the adapter joint, and the other end is connected to the tension-compression sensor. The tension-compression sensor is connected to the loading assembly, and the tension-compression sensor is electrically connected to the sensor dial.

[0020] Compared with the prior art, the present utility model can at least achieve one of the following beneficial effects:

[0021] (1) For the steering gear life detection device of the present utility model, the steering gear is fixed by the cooperation of the support and the adapter assembly, avoiding damage to the steering gear housing caused by fixing the steering gear with a fixture, achieving the effect of protecting the steering gear, reducing the damage to the steering gear during the experiment, and increasing the protection for the steering gear;

[0022] (2) by setting a loading component, the compression spring is deformed during the reciprocating linear motion of the servo, so that the compression spring applies a load to the servo, and the load is measured by a tension and pressure sensor, thereby simulating the bidirectional periodic loading of the servo;

[0023] (3) By setting up a distance measuring component, the movement of the servo is converted into the movement of the grating ruler relative to the grating table, so that the movement distance of the servo is monitored in real time, thereby improving the measurement accuracy of the movement of the servo;

[0024] (4) The servo life detection device of the utility model has a simple structure and is easy to operate. It can improve the measurement of the working stroke and loading condition of the servo and reduce the risk of damage to the servo, thereby improving the safety and accuracy of the servo life detection.

[0025] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0027] Figure 1 This is a schematic diagram of the overall structure of the steering gear life detection device of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the servo and adapter assembly of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the connection between the adapter component and the transmission component of the utility model;

[0030] Figure 4 It is a structural schematic diagram of the loading component of the utility model;

[0031] Figure 5 It is a structural schematic diagram of the distance measuring component of the utility model;

[0032] Figure 6 This is one of the exploded views of the distance measuring component of the utility model;

[0033] Figure 7 This is the second exploded view of the distance measuring component of the utility model;

[0034] Figure 8Schematic diagram of the connection between the adapter base of the present utility model and the ranging component.

[0035] Reference numerals:

[0036] 1 - Support assembly; 11 - Bottom plate; 12 - Fixed panel; 13 - Support; 2 - Sensor dial; 3 - Adapter assembly; 31 - Adapter base; 32 - Adapter joint; 33 - Bearing; 4 - Transmission assembly; 41 - Adapter screw; 42 - Tensile and compressive force sensor; 5 - Loading assembly; 51 - Locking nut; 52 - Fixed seat; 53 - Fixed shaft; 54 - Bush; 541 - Sleeve; 542 - Flange; 55 - Push - pull rod; 56 - Compression spring; 6 - Ranging component; 61 - Guide rail; 62 - Slide block; 63 - Grating meter fixing seat; 64 - Grating meter; 65 - Grating scale fixing part; 66 - Grating scale; 7 - Servo; 71 - Connector. Detailed implementation manners

[0037] The following will specifically describe the preferred embodiments of the present utility model with reference to the accompanying drawings. The accompanying drawings form a part of this application and are used together with the embodiments of the present utility model to explain the principle of the present utility model, rather than to limit the scope of the present utility model.

[0038] A specific embodiment of the present utility model discloses a servo life detection device, as Figure 1 shown, which includes a support assembly 1, a sensor dial 2, an adapter assembly 3, a transmission assembly 4, a loading assembly 5 and a ranging component 6. The support assembly 1 is used to fix the servo 7. The sensor dial 2, the loading assembly 5 and the ranging component 6 are arranged on the support assembly 1. The servo 7 is connected to the loading assembly 5 through the adapter assembly 3 and the transmission assembly 4. The adapter assembly 3 and the transmission assembly 4 transmit the linear motion of the servo 7 to the loading assembly 5 and transmit the load generated by the loading assembly 5 to the servo 7 to apply a load to the servo 7. The adapter assembly 3 is connected to the ranging component 6. When the adapter assembly 3 moves linearly with the servo 7, the ranging component 6 can measure the displacement of the servo 7 through the adapter assembly 3.

[0039] The support assembly 1 includes a bottom plate 11, a fixed panel 12 and a support 13. The fixed panel 12 is arranged at one end of the bottom plate 11 and is fixedly connected to the bottom plate 11. The sensor dial 2 is connected to the fixed panel 12. The support 13 is arranged at one end close to the fixed panel 12. The support 13 is connected to the bottom plate 11 and is connected to the servo 7. The support 13 is used to fix the servo 7. Exemplarily, the support 13 and the servo 7 are detachably connected by bolts.

[0040] As Figure 2As shown, the adapter assembly 3 includes an adapter base 31, an adapter joint 32, and a bearing 33. The adapter base 31 is connected to the distance measuring assembly 6, and the adapter base 31 is coaxially arranged with the support 13. One end of the adapter joint 32 is connected to the connector 71 of the steering gear 7, and the other end is connected to the transmission assembly 4. Exemplarily, the connector 71 and the adapter joint 32 are detachably connected by bolts; Exemplarily, the connector 71 and the adapter joint 32 are snap-connected.

[0041] The bearing 33 fixes the adapter joint 32 on the adapter base 31, so that the steering gear 7 is fixed through the cooperation of the support 13 and the adapter assembly 3, avoiding damage to the housing of the steering gear 7 caused by fixing the steering gear 7 with a fixture.

[0042] As Figure 3 shown, the transmission assembly 4 includes an adapter screw 41 and a tension and compression sensor 42. One end of the adapter screw 41 is connected to the adapter joint 32, and the other end is connected to the tension and compression sensor 42. The tension and compression sensor 42 is connected to the loading assembly 5, and the tension and compression sensor 42 is electrically connected to the sensor dial 2. The load applied by the loading assembly 5 to the steering gear 7 can be measured through the tension and compression sensor 42, and the specific value can be displayed through the sensor dial 2.

[0043] As Figure 4 shown, the loading assembly 5 includes a lock nut 51, a fixed seat 52, a fixed shaft 53, a bushing 54, a push-pull rod 55, and a compression spring 56. The number of fixed seats 52 is multiple. Preferably, the number of fixed seats 52 is two. The fixed seats 52 are coaxially arranged with the support 13 and the adapter base 31 on the bottom plate 11 and are fixedly connected to the bottom plate 11, and the fixed seats 52 are parallel to each other; A fixed shaft 53 is arranged between the fixed seats 52, and the fixed shaft 53 is fixed to the fixed seats 52 by fixing nuts to keep the distance between the fixed seats 52 fixed; A bushing 54 is arranged on the fixed seat 52. Exemplarily, the bushing 54 is a flange graphene copper bushing. The bushing 54 includes a sleeve 541 and a flange 542. The sleeve 541 penetrates through the fixed seat 52, and a flange 542 is arranged on the end face of the sleeve 541 between the fixed seats 52. The diameter of the flange 542 is larger than the diameter of the sleeve 541, so as to prevent the sleeve 541 from sliding out of the fixed seat 52; A compression spring 56 is arranged between the bushings 54, and the compression spring 56 is connected to the flange 542 between the fixed seats 52. Exemplarily, the compression spring 56 is a rectangular compression spring.

[0044] A push-pull rod 55 is also arranged between the fixed seats 52, and the push-pull rod 55 passes through the shaft sleeve 54 and the compression spring 56. Locking nuts 51 are arranged at both ends of the push-pull rod 55, and the push-pull rod 55 is threadedly connected with the locking nuts 51. The diameter of the locking nut 51 is not less than the diameter of the shaft sleeve 54, so as to prevent the push-pull rod 55 from sliding out of the shaft sleeve 54 and pushing the shaft sleeve 54 to move with the push-pull rod 55. The locking nut 51 can also prevent the sleeve 541 from sliding out of the fixed seat 52. Preferably, the locking nut 51 is arranged close to the shaft sleeve 54. Exemplarily, the locking nut 51 is a hexagonal flange locking nut. The end of the push-pull rod 55 close to the steering gear 7 is connected to the pull pressure sensor 42, so that the push-pull rod 55 can move with the steering gear 7, and the connector 71 is coaxial with the adapter seat 31, the support 13, the push-pull rod 55, the compression spring 56 and the shaft sleeve 54.

[0045] It can be understood that when the servo 7 moves toward the direction close to the loading assembly 5, under the push of the tension pressure sensor 42, the push-pull rod 55 moves with the servo 7, so that the locking nut 51 squeezes the sleeve 541 close to the servo side and pushes the sleeve 541 to move, so that the compression spring 56 is compressed to generate elastic force on the sleeve 541 close to the servo side, and the elastic force is transmitted to the tension pressure sensor 42 through the locking nut 51 and the push-pull rod 55, so that the sensor dial 2 displays the thrust generated by the loading assembly 5 on the servo 7 at this time.

[0046] When the servo 7 moves in the direction away from the loading assembly 5, the locking nut 51 squeezes the sleeve 541 on the side away from the servo 7, so that the compression spring 56 is compressed to generate elastic force on the sleeve 541 on the side away from the servo, and the elastic force is transmitted to the tension sensor 42 through the locking nut 51 and the push-pull rod 55, and the tension generated by the loading assembly 5 on the servo 7 at this time is displayed on the sensor dial 2.

[0047] like Figures 5 to 8 As shown, the distance measuring assembly 6 includes a guide rail 61, a slider 62, a grating ruler fixing part 65 and a grating ruler 66. The guide rail 61 is arranged on the bottom plate 11, and the guide rail 61 is arranged in parallel with the adapter assembly 3 and the transmission assembly 4. The slider 62 is arranged on the guide rail 61, and the slider 62 cooperates with the guide rail 61 so that the slider 62 can move on the guide rail 61. The slider 62 is fixedly connected to the adapter seat 31, and the slider 62 can move on the guide rail 61 with the adapter seat 31; the adapter seat 31 is also fixedly connected to the grating ruler fixing part 65, and preferably, the connection surface between the grating ruler fixing part 65 and the adapter seat 31 is perpendicular to the connection surface between the slider 62 and the adapter seat 31. The grating ruler 66 is fixedly connected to the grating ruler fixing part 65.

[0048] The distance measuring assembly 6 further comprises a grating table fixing seat 63 and a grating table 64. The grating table fixing seat 63 is fixedly connected to the bottom plate 11, and the grating table 64 is fixed on the grating table fixing seat 63. Preferably, the position of the grating table 64 is on the same straight line as the position of the adapter seat 31 when the servo 7 is in the initial state.

[0049] It is understandable that when the servo 7 performs linear reciprocating motion, the adapter 31 moves with the servo 7, thereby driving the slider 62 and the grating scale 66 to move together, and the grating meter 64 measures and displays the moving distance of the grating scale 66 relative to the grating meter 64, thereby measuring the moving distance of the servo 7. Measuring and displaying the moving distance of the grating scale 66 relative to the grating meter 64 by the grating meter 64 is a prior art and will not be described in detail here.

[0050] Compared with the prior art, the servo engine life detection device of the present invention fixes the servo engine 7 by the support 13 and the adapter assembly 3, thereby avoiding damage to the outer shell of the servo engine 7 caused by fixing the servo engine 7 by the clamp, thereby protecting the servo engine 7, reducing the damage to the servo engine 7 caused by the experiment, and increasing the protection of the servo engine 7; by setting the loading assembly 5, the compression spring 56 is deformed during the reciprocating linear motion of the servo engine 7, so that the compression spring 56 applies a load to the servo engine 7, and the load is measured by the tension pressure sensor 42, thereby realizing the simulation of the bidirectional periodic loading of the servo engine 7; by setting the distance measuring assembly 6, the movement of the servo engine 7 is converted into the movement of the grating ruler 66 relative to the grating table 64, thereby improving the measurement accuracy of the movement of the servo engine 7 by real-time monitoring the movement distance of the servo engine 7; the servo engine life detection device of the present invention has a simple structure and is easy to operate, can improve the measurement of the working stroke and loading condition of the servo engine 7, and reduce the risk of damage to the servo engine 7, thereby improving the safety and accuracy of the servo engine life detection.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A servo life detection device, characterized in that, It includes a support assembly (1), a transfer assembly (3), a transmission assembly (4), a loading assembly (5) and a ranging assembly (6). The servo (7) is connected to the loading assembly (5) through the transfer assembly (3) and the transmission assembly (4), and the transfer assembly (3) is connected to the ranging assembly (6). The loading assembly (5) includes a lock nut (51), a fixed seat (52), a bushing (54), a push-pull rod (55) and a compression spring (56). The number of the fixed seats (52) is multiple. The fixed seats (52) are arranged in parallel and connected to the support assembly (1). The bushing (54) is arranged on the fixed seat (52), and the compression spring (56) is arranged between the bushings (54). The push-pull rod (55) is arranged between the fixed seats (52), passes through the bushing (54) and the compression spring (56). The lock nuts (51) are arranged at both ends of the push-pull rod (55). The push-pull rod (55) is connected to the lock nuts (51) and is connected to the transmission assembly (4).

2. The servo life detection device according to claim 1, characterized in that, The bushing (54) includes a sleeve (541) and a flange (542). The sleeve (541) passes through the fixed seat (52), and the flange (542) is arranged on the end face of the sleeve (541) between the fixed seats (52). The diameter of the flange (542) is larger than that of the sleeve (541).

3. The servo life detection device according to claim 2, wherein, The compression spring (56) connects the flanges (542) between the fixed seats (52).

4. The servo life detection device according to claim 1, characterized in that, It further includes a sensor dial (2). The support assembly (1) includes a bottom plate (11), a fixed panel (12) and a support (13). The sensor dial (2) is connected to the fixed panel (12), and the support (13) is connected to the servo (7).

5. The servo life detection device according to claim 4, wherein, The transfer assembly (3) includes a transfer seat (31). The transfer seat (31), the support (13), the push-pull rod (55), the compression spring (56) and the connection head (71) of the servo (7) are coaxial.

6. The servo life detection device according to claim 5, characterized in that The ranging assembly (6) includes a guide rail (61) and a slider (62). The guide rail (61) is arranged on the bottom plate (11), the slider (62) is arranged on the guide rail (61), and the slider (62) is connected to the transfer seat (31).

7. The servo life detection device according to claim 6, characterized in that The ranging assembly (6) further includes a grating scale fixing part (65) and a grating scale (66). The transfer seat (31) is connected to the grating scale fixing part (65), and the grating scale (66) is connected to the grating scale fixing part (65).

8. The servo life detection device according to claim 7, wherein, The ranging assembly (6) further includes a grating dial fixing seat (63) and a grating dial (64). The grating dial fixing seat (63) is connected to the bottom plate (11), and the grating dial (64) is fixed on the grating dial fixing seat (63).

9. The servo life detection device according to claim 5, wherein The adapter assembly (3) further includes an adapter (32) and a bearing (33). One end of the adapter (32) is connected to the connector (71), and the other end is connected to the transfer assembly (4). The bearing (33) fixes the adapter (32) on the adapter seat (31).

10. The servo life detection device according to claim 9, characterized in that, The transfer assembly (4) includes an adapter screw (41) and a tension and compression sensor (42). One end of the adapter screw (41) is connected to the adapter (32), and the other end is connected to the tension and compression sensor (42). The tension and compression sensor (42) is connected to the loading assembly (5), and the tension and compression sensor (42) is electrically connected to the sensor dial (2).

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