CN115009511A - Motor assembly and application method of motor assembly on aircraft tail wheel lock - Google Patents

Abstract

The invention discloses a motor assembly and an application method of the motor assembly on the tail wheel lock of an aircraft, which is carried out based on the motor assembly and includes the steps of: the motor rotates and outputs rigid torque and is transmitted to an actuator through a transmission device; The rotation of the lead screw is converted into a telescopic output on the nut B, and the elastic washer provides a buffer. The motor assembly includes: a motor, which can rotate in positive and negative directions to provide rigid rotational torque; a transmission device that is meshed with the rotary output shaft of the motor for transmission through gears; The actuator can provide the buffer from the inside. The rigid torque of the motor enables the actuator to complete the expansion and contraction, and the actuator provides a buffer from the inside, which solves the problem that the compression space in the open environment outside the push rod is easily blocked by foreign objects.

Description

A motor assembly and an application method of the motor assembly on an aircraft tail wheel lock

technical field

The invention relates to an application method of a motor assembly on an aircraft tail wheel lock, and belongs to the technical field of motor assembly design and motor application.

Background technique

In order to ensure that the aircraft can maintain linear motion during take-off and landing, it is necessary to use a motor assembly to form a drive device to drive the tail wheel lock of the aircraft to be open or locked at a certain angle;

The Chinese patent publication number CN112319784A is a device with both electric and manual control of the tail wheel lock. The disclosed technology is "motor, push rod and control device. The front end of the push rod is used to connect with the handle; there is a strip on the push rod. The front end of the bar-shaped hole is provided with a ball-head plunger, and a rotary shaft is slidably arranged in the bar-shaped hole. The corresponding rotating hole, the handle is provided with a pin hole, and the pin is slidably arranged in the pin hole, and the pin is also connected with the lock pin, and the lock pin is used to be inserted into the locking hole of the tail wheel lock. The spring can provide a buffer amount when the tail wheel lock is in the locked state. However, the compression spring is in the open environment outside the push rod, and there is a problem that the compression space of the compression spring is easily blocked by foreign objects.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides an application method of a motor assembly on an aircraft tail wheel lock.

The present invention is achieved through the following technical solutions.

A method for applying a motor assembly to an aircraft tail wheel lock provided by the present invention is performed based on the motor assembly, and includes the steps of:

The rigid torque output by the rotation of the motor is transmitted to the actuator through the transmission device. The rotation of the lead screw of the actuator is converted into the output of the expansion and contraction amount on the nut B, and the elastic gasket provides the buffer amount.

A motor assembly including:

Motor, the motor can rotate forward and reverse to provide rigid rotational torque;

A transmission device that is meshed with the rotating output shaft of the motor and driven by gears;

The actuator is connected with the transmission device to convert the rotary motion of the motor into telescopic motion, and the actuator can provide buffering from the inside.

the transmission device includes a base;

Gear shaft A, gear shaft A has gears, and gear shaft A can be rotatably installed on the base;

Gear shaft B, gear shaft B can be rotatably installed on the base and gear shaft A is meshed with gears for transmission;

Nut A, nut A and gear shaft B are geared for transmission.

The motor fixing casing is fixedly connected to the base.

Both ends of the gear shaft A are rotatably mounted on the base via bearings.

The gear of the gear shaft A meshes with the rotation output shaft of the motor for transmission.

One end of the gear shaft A runs through the base.

Both ends of the gear shaft B are rotatably mounted on the base through bearings; and a dial wheel is also included, and the dial wheel is fixedly connected with the gear shaft A running through the base.

The actuator comprises: a nozzle fixed with the base,

The lead screw fixed with the middle of nut A, the lead screw and nut A are located in the nozzle;

Fixed connection with the nozzle and nut B, and the nozzle can only be slid but not rotatably installed. Twisting; the elastic gasket provides cushioning amount to realize the effect that the actuator can provide cushioning force from the inside.

The end of the lead screw extending out of the nozzle is covered with an O-shaped sealing ring.

The beneficial effects of the present invention are: the rigid torque of the motor enables the actuator to complete the expansion and contraction, the actuator provides buffering from the inside, and solves the problem that the compression space in the open environment outside the push rod is easily blocked by foreign objects.

Description of drawings

Fig. 1 is the external structure schematic diagram of the present invention;

Fig. 2 is the internal cross-sectional position connection schematic diagram of the present invention;

In the figure: 1-motor; 17-rotating output shaft; 2-transmission device; 21-base; 22-gear shaft A; 23-gear shaft B; 25-bearing C; 26-nut A; 3-actuator; 31 - Lead screw; 32 - Nozzle; 33 - O-ring; 34 - Dial block; 35 - Nut B; 37 - Elastic gasket.

Detailed ways

The technical solutions of the present invention are further described below, but the claimed scope is not limited to the description.

As shown in Figure 1 to Figure 2.

A motor assembly of the present application includes:

Motor 1 providing rigid forward and reverse rotation torque;

The transmission device 2 which is meshed with the rotary output shaft 17 of the motor 1 and driven by gears;

The actuator 3 is connected with the transmission device 2 to convert the rotary motion of the motor 1 into telescopic motion, and the actuator 3 can provide a buffer from the inside.

The rigid torque of the motor 1 enables the actuator 3 to complete the expansion and contraction, and the actuator 3 provides a buffer from the inside, solving the problem that the compressed space in the open environment outside the push rod is easily blocked by foreign objects.

The transmission device 2 includes a base 21 that provides a force-bearing basis;

There is a gear shaft A22 that meshes with the rotating output shaft 17 of the motor 1. One end of the gear shaft A22 is installed on the bearing and penetrates through the base 21 and is fixedly connected to the dial 5. The other end of the gear shaft A22 is rotatably installed on the base 21 through the bearing. superior;

Both ends are rotatably mounted on the base 21 through bearings and the gear shaft B23 is meshed with the gear shaft A22 for transmission;

After being fixedly installed with the actuator 3, the nut A26, which is meshed with the gear shaft B23 and driven by teeth, is rotatably installed on the base 21 at both ends of the nut A26 through the bearing C25.

The fixed casing of the motor 1 is fixedly connected to the base 21;

The actuator 3 includes: a nozzle 32 fixedly connected with the base 21 to provide a force-bearing basis,

The lead screw 31 is sleeved and fixed with the middle of the nut A26, the lead screw 31 and the nut A26 are located in the nozzle 32, and one end of the lead screw 31 is sheathed with an O-ring 33 extending out of the nozzle 32;

It is fixedly connected with the nozzle 32 and the nut B35. The dial 34 can only be slid but not rotatably installed with the nozzle 32. The dial 34 is spaced from the nut B35. The washer 37 is screwed with the nut B35; the elastic washer 37 provides a buffer amount to realize the effect that the actuator 3 can provide a buffer force from the inside. The elastic washer 37 is made of elastic rubber to generate elastic force, or the elastic washer 37 is elastic Open spacers made of steel generate elastic forces.

The motor 1 drives the gear shaft A22 to rotate, the gear shaft A22 drives the gear shaft B23 to rotate, the gear shaft B23 drives the lead screw 31 fixed with the nut A26 to rotate, and the lead screw 31 is screwed on the nut B35, because the nut B35 is fixed on the nozzle 32 , so that the lead screw 31 is displaced to drive the elastic washer 37 to compress on the dial block 34, so that the elastic washer 37 provides a buffering amount.

It also includes a dial wheel 5, which is fixedly connected with the gear shaft A22 running through the base 21, and the gear shaft A22 can be manually driven to rotate through the dial wheel 5 to realize the telescopic sliding of the lead screw 31.

A method for applying a motor assembly to an aircraft tail wheel lock using the motor assembly of the present application includes the following steps:

The rotational output rigid torque of the motor 1 is transmitted to the actuator 3 through the transmission device 2. The lead screw 31 of the actuator 3 rotates on the nut B35 and is converted into a telescopic output, and the elastic washer 37 provides a buffer amount.

Claims (10)

1. an application method of a motor assembly on an aircraft tail wheel lock, is characterized in that, based on the motor assembly, and comprising the steps of: The motor (1) rotates and outputs rigid torque and is transmitted to the actuator (3) through the transmission device (2). The sheet (37) provides the amount of cushioning. 2. A motor assembly, comprising: The motor (1), the motor (1) can rotate forward and reverse to provide rigid rotational torque; a transmission device (2) which is meshed with the rotary output shaft (17) of the motor (1) and driven by gears; The actuator (3) is connected with the transmission device (2) to convert the rotary motion of the motor (1) into telescopic motion, and the actuator (3) can provide a buffer from the inside. 3. The motor assembly according to claim 2, wherein the transmission device (2) comprises a base (21); The gear shaft A (22), the gear shaft A (22) has a gear, and the gear shaft A (22) is rotatably mounted on the base (21); Gear shaft B (23), gear shaft B (23) is rotatably mounted on the base (21) and geared to gear shaft A (22) for transmission; Nut A (26), nut A (26) and gear shaft B (23) are geared for transmission. 4. The motor assembly according to claim 3, characterized in that: the motor (1) is fixedly connected to the base (21) with a fixed casing. 5 . The motor assembly according to claim 3 , wherein both ends of the gear shaft A ( 22 ) are rotatably mounted on the base ( 21 ) via bearings. 6 . 6. The motor assembly according to claim 3, characterized in that: the gear of the gear shaft A (22) meshes with the rotation output shaft (17) of the motor (1) for transmission. 7. The motor assembly according to claim 3, characterized in that: one end of the gear shaft A (22) penetrates through the base (21); further comprising a dial (5), the dial (5) is connected to the base The gear shaft A (22) on (21) is fixedly connected. 8 . The motor assembly according to claim 3 , wherein both ends of the gear shaft B ( 23 ) are rotatably mounted on the base ( 21 ) through bearings. 9 . 9. The motor assembly according to claim 1, wherein the actuator (3) comprises: a nozzle (32) fixed with the base (21), The lead screw (31) is sleeved and fixed with the middle of the nut A (26), and the lead screw (31) and the nut A (26) are located in the nozzle (32); Fixed connection with the nozzle (32) and the nut B (35), the slider (34) that can only be slid but not rotatably installed with the nozzle (32), the slider (34) is spaced from the nut B (35), the lead screw (31) The other end is slidably telescopic and penetrates the dial (34) and is sleeved with an elastic washer (37) that is screwed with the nut B (35); Provides a cushioning effect inside. 10 . The motor assembly according to claim 9 , wherein an O-ring ( 33 ) is sheathed at the end of the lead screw ( 31 ) protruding from the nozzle ( 32 ). 11 .

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