CN217692963U

CN217692963U - Motor assembly

Info

Publication number: CN217692963U
Application number: CN202221447026.7U
Authority: CN
Inventors: 文露露; 师立峻; 王仁兵; 师立峰
Original assignee: Guizhou Qianhang Electric Co ltd
Current assignee: Guizhou Qianhang Electric Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-10-28
Anticipated expiration: 2032-06-10

Abstract

The utility model discloses a motor assembly, include: the motor can rotate forwards and backwards to provide rigid rotating torque; the transmission device is in meshing transmission with a rotary output shaft of the motor through a gear; the actuating mechanism is connected with the transmission device and converts the rotary motion of the motor into telescopic motion, and the actuating mechanism can provide buffer capacity from the inside. The rigid torque of the motor enables the actuating mechanism to stretch out and draw back, the actuating mechanism provides buffer capacity from the inside, and the problem that the compression spring is located in an open environment compression space outside the push rod and is easily blocked by foreign matters is solved.

Description

Motor assembly

Technical Field

The utility model relates to a motor assembly belongs to space flight and aviation technical field.

Background

In order to ensure that the airplane can keep linear motion during taking off and landing, a motor assembly is used for forming a driving device to drive a tail wheel lock of the airplane to be in a state of being unlocked or locked at a certain angle;

in the Chinese patent publication No. CN112319784A, a device which simultaneously has an electric and manual control tail wheel lock, the disclosed technology comprises a motor, a push rod and a control device, wherein the front end of the push rod is used for being connected with a handle; a strip-shaped hole is formed in the push rod, a ball plunger is arranged at the front end of the strip-shaped hole, a rotating shaft is arranged in the strip-shaped hole in a sliding mode, the ball plunger is used for fixing the rotating shaft, and a pressure spring is wound on the push rod; the handle is provided with a rotary hole matched with the rotary shaft, a pin shaft hole is formed in the handle, a pin shaft is arranged in the pin shaft hole in a sliding mode and is further connected with a lock pin, the lock pin is used for being inserted into a locking hole of the tail wheel lock, although the pressure spring can provide buffer capacity when the tail wheel lock is in a locking state, the pressure spring is in an open environment outside the push rod, and the problem that the compression space of the pressure spring is easily blocked by foreign matters exists.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a motor assembly.

The utility model discloses a following technical scheme can realize.

The utility model provides a pair of motor assembly, include:

the motor can rotate forwards and backwards to provide rigid rotating torque;

the transmission device is in meshing transmission with a rotary output shaft of the motor through a gear;

the actuating mechanism is connected with the transmission device and converts the rotary motion of the motor into telescopic motion, and the actuating mechanism can provide buffer capacity from the inside.

The transmission device comprises a base;

the gear shaft A is provided with a gear and can be rotatably arranged on the base;

the gear shaft B is rotatably arranged on the base and is in tooth meshing transmission with the gear shaft A;

the nut A and the gear shaft B are in tooth meshing transmission.

The motor fixing shell is fixedly connected to the base.

And two ends of the gear shaft A are rotatably arranged on the base through bearings.

And the gear of the gear shaft A is in meshed transmission with a rotary output shaft of the motor.

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

Two ends of the gear shaft B are rotatably arranged on the base through bearings; the gear shaft A is fixedly connected with the shifting wheel.

The actuator includes: a nozzle fixed with the base is arranged on the base,

the screw rod is fixedly sleeved with the middle part of the nut A, and the screw rod and the nut A are positioned in the pipe nozzle;

the shifting block is fixedly connected with the pipe nozzle, the nut B and the pipe nozzle can only slide but cannot be rotatably installed, the shifting block is spaced from the nut B, and the other end of the screw rod can slide, stretch and penetrate through the shifting block and is sleeved with an elastic gasket to be screwed with the nut B; the elastic gasket provides buffer capacity to realize that the actuating mechanism can provide the effect of buffer force from inside.

And an O-shaped sealing ring is sleeved outside the end part of the screw rod extending out of the nozzle.

The beneficial effects of the utility model reside in that: the rigid torque of the motor enables the actuating mechanism to stretch out and draw back, the actuating mechanism provides buffer capacity from the inside, and the problem that the compression spring is located in an open environment compression space outside the push rod and is easily blocked by foreign matters is solved.

Drawings

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

FIG. 2 is a schematic view of the internal profile position connection of the present invention;

in the figure: 1-a motor; 17-a rotary output shaft; 2-a transmission device; 21-a base; 22-gear shaft a; 23-gear shaft B; 25-bearing C; 26-nut a; 3-an actuator; 31-a lead screw; 32-a nozzle; a 33-O type seal ring; 34-a shifting block; 35-nut B; 37-resilient gasket.

Detailed Description

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

As shown in fig. 1-2.

The application provides a motor assembly, includes:

a motor 1 providing rigid forward and reverse rotational torque;

a transmission device 2 which is in meshed transmission with a rotary output shaft 17 of the motor 1 through a gear;

and the actuating mechanism 3 is connected with the transmission device 2 and converts the rotary motion of the motor 1 into telescopic motion, and the actuating mechanism 3 can provide buffer amount from the inside.

The rigid torque of the motor 1 enables the actuating mechanism 3 to stretch out and draw back, the actuating mechanism 3 provides buffer volume from the inside, and the problem that the compression space of the open environment with the compression spring outside the push rod is easily blocked by foreign matters is solved.

The transmission device 2 comprises a base 21 providing a force-bearing basis;

a gear shaft A22 with a gear meshed with the rotary output shaft 17 of the motor 1 for transmission is arranged, one end of the gear shaft A22 is arranged on a bearing and penetrates through the base 21 to be fixedly connected with the thumb wheel 5, and the other end of the gear shaft A22 is rotatably arranged on the base 21 through the bearing;

a gear shaft B23 with two ends rotatably mounted on the base 21 through bearings and in tooth meshing transmission with the gear shaft A22;

and the nut A26 is fixedly installed with the actuating mechanism 3 and then is in tooth meshing transmission with the gear shaft B23, and two ends of the nut A26 are rotatably installed on the base 21 through a bearing C25.

The fixed casing of the motor 1 is fixedly connected on the base 21.

The actuator 3 includes: a nozzle 32 fixedly connected with the base 21 and providing a force basis,

the screw rod 31 is fixedly sleeved with the middle part of the nut A26, the screw rod 31 and the nut A26 are positioned in the nozzle 32, and an O-shaped sealing ring 33 is sleeved outside one end of the screw rod 31 and extends out of the nozzle 32;

the shifting block 34 is fixedly connected with the nozzle 32, is provided with a nut B35 and is rotatably mounted with the nozzle 32 only in a sliding way, the shifting block 34 is spaced from the nut B35, and the other end of the screw rod 31 can slide, stretch and penetrate through the shifting block 34 and is sleeved with an elastic gasket 37 which is screwed with the nut B35; the elastic gasket 37 provides the buffer amount to realize the function that the actuating mechanism 3 can provide the buffer force from the inside, the elastic gasket 37 is made of elastic rubber to generate the elastic force, or the elastic gasket 37 is an opening gasket made of elastic steel to generate the elastic force.

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, the lead screw 31 is screwed with the nut B35 on the nut B35, and the nut B35 is fixed on the nozzle 32, so that the lead screw 31 generates displacement to drive the elastic gasket 37 to compress on the shifting block 34, and the elastic gasket 37 provides buffer capacity.

Still include thumb wheel 5, thumb wheel 5 and run through gear shaft A22 fixed connection on base 21, but manual drive gear shaft A22 is rotatory through thumb wheel 5, realizes the flexible slip of lead screw 31.

The application method of the motor assembly on the tail wheel lock of the airplane, which is completed by using the motor assembly, comprises the following steps:

the rotation output rigid torque of the motor 1 is transmitted to the actuating mechanism 3 through the transmission device 2, the rotation of the lead screw 31 of the actuating mechanism 3 is converted into the output of the expansion amount on the nut B35, and the elastic gasket 37 provides the buffer amount.

Claims

1. An electric machine assembly, comprising:

the motor (1), the motor (1) can rotate positively and negatively to provide rigid rotating torque;

a transmission device (2) which is in meshed transmission with a rotary output shaft (17) of the motor (1) through a gear;

the actuating mechanism (3) is connected with the transmission device (2) and converts the rotary motion of the motor (1) into telescopic motion, and the actuating mechanism (3) can provide buffer capacity from the inside.

2. The motor assembly of claim 1, wherein: the transmission (2) comprises a base (21);

the gear shaft A (22), the gear shaft A (22) has gears, the gear shaft A (22) is rotatably mounted on the base (21);

the gear shaft B (23), the gear shaft B (23) is rotatably arranged on the base (21) and is in tooth meshing transmission with the gear shaft A (22);

the nut A (26) and the gear shaft B (23) are in tooth meshing transmission.

3. The motor assembly of claim 2, wherein: the motor (1) is fixedly connected with the fixed shell on the base (21).

4. The motor assembly of claim 2, wherein: two ends of the gear shaft A (22) are rotatably arranged on the base (21) through bearings.

5. The motor assembly of claim 2, wherein: the gear of the gear shaft A (22) is in meshed transmission with a rotary output shaft (17) of the motor (1).

6. The motor assembly of claim 2, wherein: one end of the gear shaft A (22) penetrates through the base (21); the automatic transmission mechanism further comprises a shifting wheel (5), and the shifting wheel (5) is fixedly connected with a gear shaft A (22) penetrating through the base (21).

7. The motor assembly of claim 2, wherein: two ends of the gear shaft B (23) are rotatably arranged on the base (21) through bearings.

8. The motor assembly of claim 1, wherein: the actuator (3) comprises: a nozzle (32) fixed with the base (21),

the screw rod (31) is fixedly sleeved with the middle part of the nut A (26), and the screw rod (31) and the nut A (26) are positioned in the nozzle (32);

the shifting block (34) is fixedly connected with the nozzle (32), the nut B (35) and the nozzle (32) and can only slide but cannot be rotatably installed, the shifting block (34) is spaced from the nut B (35), and the other end of the screw rod (31) can slide, stretch and penetrate through the shifting block (34) and is sleeved with an elastic gasket (37) to be screwed with the nut B (35) in a threaded manner; the elastic gasket (37) provides buffer amount to realize the function that the actuating mechanism (3) can provide buffer force from the inside.

9. The motor assembly of claim 8, wherein: an O-shaped sealing ring (33) is sleeved outside the end part of the screw rod (31) extending out of the nozzle (32).