CN111238806A - Testing device for transmission system of cross dual-rotor unmanned helicopter - Google Patents

Abstract

The application discloses unmanned helicopter transmission system testing arrangement of two rotors alternately includes: a rack; the transmission system is arranged on the rack and comprises an engine, a first-stage synchronous belt transmission structure, a second-stage transmission structure and a third-stage bevel gear transmission structure which are sequentially connected; the first torque rotating speed power tester is arranged on the rack and is connected with the first-stage synchronous belt transmission structure and the second transmission structure; and the magnetic damper is connected with the third-stage bevel gear transmission structure. The transmission testing device can realize the performance test of the transmission system of the cross twin-rotor unmanned helicopter.

Description

A test device for the transmission system of a cross-dual-rotor unmanned helicopter

technical field

The invention relates to the technical field of helicopters, in particular to a cross-rotor unmanned helicopter transmission system testing device.

Background technique

The engine of the cross-rotor unmanned helicopter is the power source that drives its rotors to rotate, and the transmission system is the bridge connecting the engine and the rotor system. The transmission efficiency is very important to study the performance of the cross-rotor unmanned helicopter, but there is no device for comprehensive testing of the transmission system of the cross-rotor unmanned helicopter in the prior art. The testing device for the input torque, output torque, input rotational speed, output rotational speed, and power transmission efficiency of the transmission system of the cross-dual-rotor unmanned helicopter is an urgent technical problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

In view of this, the present invention provides a cross-dual-rotor unmanned helicopter transmission system testing device, which can realize the performance test of the transmission system of the cross-dual-rotor unmanned helicopter.

In order to achieve the above object, the present invention provides the following technical solutions:

A cross-dual-rotor unmanned helicopter transmission system test device, comprising:

Bench;

a transmission system arranged on the platform, the transmission system comprising an engine, a first-stage synchronous belt transmission structure, a second-stage transmission structure and a third-stage bevel gear transmission structure connected in sequence;

a first torque speed power tester arranged on the bench and connected to the first-stage synchronous belt transmission structure and the second-stage transmission structure;

A magnetic damper connected with the third-stage bevel gear transmission structure.

Preferably, in the above-mentioned test device for the transmission system of the cross-dual-rotor unmanned helicopter, the second-stage transmission structure is a second-stage synchronous belt transmission structure.

Preferably, in the above-mentioned cross-dual-rotor unmanned helicopter transmission system testing device,

The first-stage synchronous belt transmission structure includes: a primary input pulley connected with the output shaft of the engine; a primary reduction pulley connected with the primary input pulley through a synchronous belt, and the primary reduction pulley is connected through a coupling. connected with the first torque speed power tester;

The second-stage synchronous belt transmission structure includes: an intermediate-level input pulley connected to the first torque, rotational speed and power tester; an intermediate-level deceleration pulley connected to the intermediate-level input pulley through a synchronous belt;

The third-stage bevel gear transmission structure includes: a small bevel gear connected with the intermediate reduction pulley through a first shaft; a large bevel gear meshing with the small bevel gear, and a second bevel gear is arranged on the large bevel gear. The second shaft is connected with the magnetic damper; wherein, the small bevel gear and the large bevel gear are both arranged in a bevel gear box, and the first shaft extends into the bevel gear box The inner part is connected with the bevel pinion gear, and the second shaft extends from the inner part of the bevel gear box to be connected with the magnetic damper.

Preferably, in the above-mentioned cross-rotor unmanned helicopter transmission system test device, the second-stage synchronous belt transmission structure further includes an idler and a tensioner, and the idler and the tensioner are connected to the intermediate input. The pulley and the synchronous belt of the intermediate speed reduction pulley exert force.

Preferably, the above-mentioned cross-dual-rotor unmanned helicopter transmission system testing device further includes a second torque, rotational speed and power tester disposed outside the bevel gearbox, and the second shaft and the magnetic damper pass through the The second torque speed power tester is connected.

Preferably, in the above-mentioned cross-dual-rotor unmanned helicopter transmission system testing device, the bench includes a support frame, and an engine mounting frame, a primary reduction shaft seat, a first tester bracket, Reducer fixing plate, second tester mounting plate and tensioner support rod.

Preferably, in the above-mentioned cross-rotor unmanned helicopter system testing device,

The primary input pulley is connected to the engine provided on the engine mounting frame through a clutch, and the primary reduction pulley is provided on the primary reduction shaft seat;

The first torque speed power tester is arranged on the first tester bracket;

the intermediate input pulley, the intermediate speed reduction pulley and the idler pulley are arranged on the reducer fixing plate, and the tensioning wheel is arranged on the tensioning wheel support rod;

The bevel gear box is fixed on the reducer fixing plate, and the second torque, rotational speed and power tester is arranged on the second tester mounting plate.

Preferably, in the above-mentioned test device for the transmission system of the cross-dual-rotor unmanned helicopter, the support frame is formed by splicing a plurality of aluminum profiles to form a hollow frame.

Preferably, in the above-mentioned test device for the transmission system of the cross-rotor unmanned helicopter, the bottom of the support frame is provided with an anchoring plate, and the anchoring plate is connected with anchor bolts.

Preferably, in the above-mentioned test device for the transmission system of the cross-dual-rotor unmanned helicopter, the mounting feet of the engine are connected to a shock-absorbing pad, and the shock-absorbing pad is arranged on the engine mounting frame.

In the cross-dual-rotor unmanned helicopter transmission system testing device provided by the present invention, a first torque speed power tester is set between the first-stage synchronous belt transmission structure and the second-stage transmission structure of the transmission system. During the working process of the transmission system , the power of the first-stage synchronous belt transmission structure is transmitted to the second-stage transmission structure through the first torque speed power tester, and the transmission ratio of the second-stage transmission structure can be adjusted, so that the first torque speed power tester can be in different In the case of transmission ratio, test the input torque, output torque, input speed, output speed and power of the transmission system, and directly display the torque value, speed value and power value, etc., and then the transmission efficiency of the transmission system can be obtained through algebraic calculation. , so as to realize the performance test of the transmission system.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

1 is a schematic structural diagram of a cross-rotor unmanned helicopter transmission system testing device provided by an embodiment of the present invention;

2 is a schematic structural diagram of the cooperation of a transmission system with a first torque speed power tester;

FIG. 3 is a cross-sectional view of the third-stage bevel gear transmission structure.

In the above Figures 1-3:

1-bench; 11-support frame, 12-engine mounting frame, 13-first tester bracket, 14-reducer fixing plate, 15-second tester mounting plate, 16-tensioner support rod;

2 - engine;

3- The first torque speed power tester;

4- Transmission system; 41- First-stage synchronous belt transmission structure, 411- Primary input pulley, 412- Primary reduction pulley; 42- Second-stage synchronous belt transmission structure, 421- Intermediate input pulley, 422- Intermediate reduction Pulley, 423-idler, 424-tensioner; 43-third-stage bevel gear transmission structure, 431-bevel gearbox, 432-small bevel gear, 433-large bevel gear;

5- Magnetic damper;

6- The second torque speed power tester.

Detailed ways

The invention provides a cross-dual-rotor unmanned helicopter transmission system testing device, which can realize the performance test of the cross-dual-rotor unmanned helicopter transmission system.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIGS. 1 to 3 , an embodiment of the present invention provides a cross-dual-rotor unmanned helicopter transmission system testing device for testing the performance of the cross-dual-rotor unmanned helicopter transmission system, which mainly includes a bench 1 , transmission system 4 (that is, the transmission system of the cross-rotor unmanned helicopter), the first torque speed power tester 3 and the magnetic damper 5, wherein the bench 1 is the supporting part of the entire transmission test device, and the The other components are arranged on the bench 1; the transmission system 4 is arranged on the bench 1, and the transmission system 4 mainly includes the engine 2, the first-stage synchronous belt transmission structure 41, the second-stage transmission structure and the third-stage transmission structure connected in sequence. The bevel gear transmission structure 43, the power generated by the engine 2 is sequentially transmitted on the first-stage synchronous belt transmission structure 41, the second-stage transmission structure and the third-stage bevel gear transmission structure 43; the first torque speed power tester 3 is set in the Between the first-stage synchronous belt transmission structure 41 and the second-stage transmission structure, the power on the first-stage synchronous belt transmission structure 41 is transmitted to the second-stage transmission structure after passing through the first torque speed power tester 3; magnetic damping The gear 5 is connected to the third-stage bevel gear transmission structure 43 for providing damping to the transmission system 4 . Among them, the first torque and rotational speed power tester 3 and the second torque, rotational speed and power tester 6 described later are both existing instruments.

In this embodiment, as shown in FIGS. 1 to 3 , preferably the first-stage synchronous belt transmission structure 41 includes: a primary input pulley 411 connected to the output shaft of the engine 2; a synchronous belt connected to the primary input pulley 411 The primary reduction pulley 412 is connected to the first torque speed power tester 3 through a coupling. At the same time, preferably the second-stage transmission structure is the second-stage synchronous belt transmission structure 42, and the second-stage synchronous belt transmission structure 42 includes: an intermediate input pulley 421 connected with the first torque speed power tester 3; The intermediate speed reduction pulley 422 to which the intermediate input pulley 421 is connected. And, preferably, the third-stage bevel gear transmission structure 43 includes: a small bevel gear 432 connected with the intermediate reduction pulley 422 through the first shaft; a large bevel gear 433 meshing with the small bevel gear 432, the large bevel gear 433 is provided The second shaft, the second shaft is connected with the magnetic damper 5; wherein, the small bevel gear 432 and the large bevel gear 433 are both arranged in the bevel gear box 431, and the first shaft extends into the bevel gear box 431 to connect with the small bevel gear 431. The gear 432 is connected, and the second shaft protrudes from the bevel gear box 431 to be connected with the magnetic damper 5 .

In addition, it is preferred that the second-stage synchronous belt transmission structure 42 further includes an idler pulley 423 and a tensioner 424. As shown in FIG. 1 and FIG. 2, the idler 423 and the tensioner 424 are connected to the intermediate input pulley 421 and the intermediate speed reduction belt. The timing belt of the wheel 422 exerts the force. The provision of the idler pulley 423 and the tension pulley 424 can optimize the structure of the second-stage synchronous belt transmission structure 42 and improve the stability and reliability of power transmission.

When testing the transmission system 4, by replacing the intermediate input pulley 421 and the synchronous belt of the second-stage synchronous belt transmission structure 42, the transmission ratio of the entire transmission system 4 can be adjusted. Under different transmission ratios, the first torque rotation speed is used. The power tester 3 can test the transmission system 4. The first torque and speed power tester 3 can directly display the torque, speed, and power. The operator or the controller of the transmission test device then undergoes simple algebraic calculations (calculation methods and formulas). All are common knowledge) can obtain the transmission efficiency of the transmission system 4 . In addition, the transmission system 4 has a simple structure, is convenient to process and assemble, and is easy to operate, which can reduce the research and development cost.

In addition, the second-stage synchronous belt transmission structure 42 can also be replaced with a gear transmission structure. Specifically, the intermediate-level input pulley 421 can be replaced with an intermediate-level input gear, and the intermediate-level reduction pulley 422 can be replaced with an intermediate-level reduction gear with the same transmission ratio. And there is no need to dispose the idler 423 and the tensioner 424 any more. In this way, the normal transmission of power and the test of the transmission system 4 can also be realized.

As shown in FIG. 1 , preferably the bench 1 includes a support frame 11 , and an engine mounting frame 12 , a primary reduction shaft seat, a first tester support 13 , a reducer fixing plate 14 , a second reducer fixing plate 14 , and an engine mounting frame 12 arranged on different parts of the support frame 11 . Tester mounting plate 15 and tensioner support rod 16 . Among them, the primary input pulley 411 is connected to the engine 2 arranged on the engine mounting frame 12 through the clutch, the primary reduction pulley 412 is arranged on the primary reduction shaft seat, and the primary reduction pulley 412 and the primary input pulley 411 are realized by a synchronous belt The belts are connected; the first torque speed power tester 3 is arranged on the first tester bracket 13, and the output shaft of the first torque speed power tester 3 is connected with the intermediate input pulley 421; the intermediate input pulley 421, the intermediate speed reduction pulley 422 and the idler pulley 423 are arranged on the speed reducer fixing plate 14, the tensioner 424 is arranged on the tensioner support rod 16, the intermediate input pulley 421, the intermediate reduction pulley 422, the idler 423 and the tensioner 424 are synchronized by The belt realizes the belt connection; the bevel gear box 431 is fixed on the reducer fixing plate 14, the second torque speed power tester 6 is arranged on the second tester mounting plate 15, and the output shaft of the second torque speed power tester 6 is connected to the magnetic The damper 5 is connected. With this arrangement, each component of the transmission testing device can be firmly installed on the special supporting structure, so that the entire transmission testing device can work more stably and reliably.

Preferably, as shown in FIG. 1 , the support frame 11 is formed by splicing several aluminum profiles to form a hollow-shaped bracket to simplify the structure and save materials, and the bottom of the support frame 11 is provided with a foot mounting plate, and the foot mounting plate is connected with the foot. bolts to achieve a stable setting of the entire transmission test rig on the ground.

Further, the mounting feet of the engine 2 are connected with a shock-absorbing pad (not shown in the figure), and the shock-absorbing pad is arranged on the engine mounting frame 12 . This arrangement can avoid the rigid connection between the engine 2 and the stand 1 and reduce the Vibration, thereby improving the working stability of the entire transmission test device.

In this specification, the structure of each part is described in a progressive manner. The structure of each part focuses on the difference from the existing structure. The whole and part of the structure of the transmission test device can be combined by combining the structures of the above parts. and get.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. a cross-rotor unmanned helicopter transmission system testing device, is characterized in that, comprises: Bench; a transmission system arranged on the platform, the transmission system comprising an engine, a first-stage synchronous belt transmission structure, a second-stage transmission structure and a third-stage bevel gear transmission structure connected in sequence; a first torque speed power tester arranged on the bench and connected to the first-stage synchronous belt transmission structure and the second-stage transmission structure; A magnetic damper connected with the third-stage bevel gear transmission structure. 2 . The cross-rotor unmanned helicopter transmission system testing device according to claim 1 , wherein the second-stage transmission structure is a second-stage synchronous belt transmission structure. 3 . 3. cross-rotor unmanned helicopter transmission system testing device according to claim 2, is characterized in that: The first-stage synchronous belt transmission structure includes: a primary input pulley connected with the output shaft of the engine; a primary reduction pulley connected with the primary input pulley through a synchronous belt, and the primary reduction pulley is connected through a coupling. connected with the first torque speed power tester; The second-stage synchronous belt transmission structure includes: an intermediate-level input pulley connected to the first torque, rotational speed and power tester; an intermediate-level deceleration pulley connected to the intermediate-level input pulley through a synchronous belt; The third-stage bevel gear transmission structure includes: a small bevel gear connected with the intermediate reduction pulley through a first shaft; a large bevel gear meshing with the small bevel gear, and a second bevel gear is arranged on the large bevel gear. The second shaft is connected with the magnetic damper; wherein, the small bevel gear and the large bevel gear are both arranged in a bevel gear box, and the first shaft extends into the bevel gear box The inner part is connected with the bevel pinion gear, and the second shaft extends from the inner part of the bevel gear box to be connected with the magnetic damper. 4. The cross-dual-rotor unmanned helicopter transmission system test device according to claim 3, the second-stage synchronous belt transmission structure further comprises an idler and a tensioner, and the idler and the tensioner are connected to each other The synchronous belts of the intermediate input pulley and the intermediate reduction pulley exert force. 5. The cross-dual-rotor unmanned helicopter transmission system test device according to claim 4, characterized in that, further comprising a second torque speed power tester arranged outside the bevel gearbox, the second shaft and the The magnetic damper is connected through the second torque speed power tester. 6. The cross-rotor unmanned helicopter transmission system test device according to claim 5, wherein the platform comprises a support frame, and an engine mounting frame and a primary reduction shaft arranged on different parts of the support frame seat, the first tester bracket, the reducer fixing plate, the second tester mounting plate and the tensioner support rod. 7. cross-rotor unmanned helicopter transmission system testing device according to claim 6, is characterized in that: The primary input pulley is connected to the engine provided on the engine mounting frame through a clutch, and the primary reduction pulley is provided on the primary reduction shaft seat; The first torque speed power tester is arranged on the first tester bracket; the intermediate input pulley, the intermediate speed reduction pulley and the idler pulley are arranged on the reducer fixing plate, and the tensioning wheel is arranged on the tensioning wheel support rod; The bevel gear box is fixed on the reducer fixing plate, and the second torque, rotational speed and power tester is arranged on the second tester mounting plate. 8 . The cross-rotor unmanned helicopter transmission system test device according to claim 6 , wherein the support frame is formed by splicing a plurality of aluminum profiles to form a hollow frame. 9 . 9 . The cross-rotor unmanned helicopter transmission system test device according to claim 6 , wherein the bottom of the support frame is provided with an anchoring plate, and the anchoring plate is connected with anchor bolts. 10 . 10 . The cross-rotor unmanned helicopter transmission system testing device according to claim 6 , wherein the mounting feet of the engine are connected to shock-absorbing pads, and the shock-absorbing pads are arranged on the engine mounting frame. 11 .

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