Transmission structure of vehicle-mounted servo seat body with large load and capable of being tilted

Abstract

The application discloses a transmission structure of a vehicle-mounted large-load servo seat body capable of being laid down, which comprises a seat body, a main shaft, a main gear, a motor gear shaft, a motor bearing seat, a shaft coupling and a servo motor. The main shaft is installed at the center of the seat body through bearings I at both ends of the main shaft. A driving gear is coaxially sleeved and fixed in the middle part of the main shaft. The driving gear and a transmission gear on the motor gear shaft are in engagement transmission. The motor bearing seat is installed on the seat body and is parallel to the axis of the main shaft. The motor gear shaft is installed on the motor bearing seat through bearings II at both ends of the motor gear shaft. The servo motor is installed on the seat body and is coaxial with the motor gear shaft. The output shaft of a servo motor speed reducer is connected with the motor gear shaft through the shaft coupling. The application can realize upright fixed rotation during work and laying down fixed vehicle transportation during non-work.

Description

Technical Field

[0001] This invention relates to the field of mechanical structure technology, specifically to a transmission structure for a vehicle-mounted, tiltable, high-load servo seat. Background Technology

[0002] The vehicle-mounted radar servo mount is installed on the roof of the communication vehicle. Its upright position is too high, and its orientation is not locked, making it inconvenient for vehicle transport. Therefore, the equipment lies horizontally on the roof when not in use, and only stands upright when needed. Thus, the vehicle-mounted radar servo mount needs to ensure the radar rotates upright during operation and lies flat and fixed when not in use. However, because the transmission gear is directly coaxially mounted on the output shaft of the servo motor reducer, meshing with the drive gear, this direct transmission method between the servo motor and the drive gear can cause the shaft to tilt under long-term stress from lying flat, potentially damaging the motor. Furthermore, during operation, it needs to support the 360-degree eccentric rotation of a radar antenna assembly with a 0.7-meter radius of rotation and a weight of 60 kg. Therefore, a transmission mechanism is needed to address the issues of the vehicle-mounted radar servo mount's ability to lie flat and withstand large eccentric loads. Summary of the Invention

[0003] In view of this, the present invention provides a transmission structure for a vehicle-mounted, tiltable, high-load servo seat, which can achieve upright and fixed rotation during operation and tilted and fixed for vehicle transport when not in operation.

[0004] The technical solution adopted in this invention is as follows:

[0005] A transmission structure for a vehicle-mounted, tiltable, high-load servo mount includes a mount, a main shaft, a drive gear, a transmission gear, a motor gear shaft, a motor bearing housing, a coupling, and a servo motor.

[0006] The main shaft is mounted at both ends on the center of the base via bearing I. The drive gear is coaxially mounted and fixed in the middle of the main shaft. The transmission gear and motor gear shaft are an integrated structure. The drive gear meshes with the transmission gear on the motor gear shaft. The motor bearing housing is mounted on the base and is parallel to the axis of the main shaft. The two ends of the motor gear shaft are mounted on the motor bearing housing via bearing II. The servo motor is mounted on the base and is coaxial with the motor gear shaft. The output shaft of the servo motor reducer is connected to the motor gear shaft via a coupling.

[0007] Furthermore, the main shaft is provided with a positioning shoulder, one side of which contacts and limits the bearing I, and the other side contacts and limits the drive gear.

[0008] Furthermore, both bearing I on the main shaft and bearing II on the motor gear shaft are angular contact ball bearings.

[0009] Furthermore, the bearing I on the main shaft is fixed with a pressure ring to adjust the axial movement of the main shaft.

[0010] Furthermore, the base is made of casting.

[0011] Beneficial effects:

[0012] 1. The present invention features two shaft systems that support the main shaft and the servo motor output shaft respectively, and uses a coupling connection method to decompose and transmit the force on the seat body in the collapsed state, thereby solving the problem of motor damage during use. Moreover, the servo motor and the drive gear are not directly connected, but the motor gear shaft and the servo motor reducer output shaft are connected through a coupling, which can avoid shaft tilting caused by long-term collapsed force. The transmission gear and the motor gear shaft are integrated structures to avoid wobbling and gaps, thus improving reliability.

[0013] 2. The bearing I on the main shaft and the bearing II on the motor gear shaft of this invention are both angular contact ball bearings, which can bear the 360-degree rotation of a radar antenna assembly with a rotation radius of 0.7 meters and a weight of 60 kg in an eccentric state. They can be tilted and withstand large eccentric loads, and have high reliability.

[0014] 3. The bearing I on the main shaft of this invention is fixed by a pressure ring, which can adjust the axial movement of the main shaft and further improve the reliability of the transmission structure. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the overall structure of the present invention.

[0016] Among them, 1-base, 2-main shaft, 3-drive gear, 4-main shaft upper bearing, 5-main shaft lower bearing, 6-motor gear shaft, 7-motor gear shaft upper bearing, 8-motor gear shaft lower bearing, 9-motor bearing housing, 10-coupling, 11-servo motor. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] This invention provides a transmission structure for a vehicle-mounted, tiltable, high-load servo seat, such as... Figure 1 As shown, the transmission structure includes a base 1, a main shaft 2, a drive gear 3, a motor gear shaft 6, a motor bearing housing 9, a coupling 10, and a servo motor 11.

[0019] The base 1 is a load-bearing base, which is formed by casting. The two ends of the main shaft 2 are mounted on the center of the base 1 through bearing I. The drive gear 3 is coaxially mounted and fixed in the middle of the main shaft 2. The transmission gear and the motor gear shaft 6 are integrated structures. The drive gear 3 meshes with the transmission gear on the motor gear shaft 6. The motor bearing housing 9 is mounted on the base 1 and is parallel to the axis of the main shaft 2. The two ends of the motor gear shaft 6 are mounted on the motor bearing housing 9 through bearing II. The servo motor 11 is mounted on the base 1 and is coaxial with the motor gear shaft 6. The output shaft of the servo motor 11 reducer is connected to the motor gear shaft 6 through coupling 10.

[0020] Specifically, bearing I is divided into upper spindle bearing 4 and lower spindle bearing 5. The spindle 2 is assembled at the center of the housing 1 through upper spindle bearing 4 and lower spindle bearing 5. Both upper spindle bearing 4 and lower spindle bearing 5 are angular contact ball bearings and are fixed with pressure rings, which can adjust the axial movement of the spindle 2.

[0021] The main spindle 2 is provided with a positioning shoulder. One side of the positioning shoulder contacts and limits the bearing 4 on the main spindle, and the other side contacts and limits the drive gear 3.

[0022] The motor gear shaft 6 is mounted and fixed on the motor bearing housing 9 via the upper bearing 7 and the lower bearing 8 of the motor gear shaft. Similarly, the upper bearing 7 and the lower bearing 8 of the motor gear shaft are also angular contact ball bearings.

[0023] Therefore, the transmission structure supports the main shaft 2 and the output shaft of the servo motor 11 reducer through two shaft systems, and uses the connection method of coupling 10 to decompose and transmit the force on the seat 1 in the inverted state, thereby solving the problem of motor damage during use. It can achieve upright fixed rotation when working, and inverted fixed vehicle transport when not working. It can also bear the 360-degree rotation of a radar antenna assembly with a turning radius of 0.7 meters and a weight of 60 kg in an eccentric state.

[0024] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A transmission structure for a vehicle-mounted, tiltable, high-load servo seat, characterized in that, It includes the base, main shaft, drive gear, transmission gear, motor gear shaft, motor bearing housing, coupling, and servo motor; The main shaft is mounted at both ends on the center of the base via bearing I. The drive gear is coaxially mounted and fixed in the middle of the main shaft. The transmission gear and motor gear shaft are an integrated structure. The drive gear meshes with the transmission gear on the motor gear shaft. The motor bearing housing is mounted on the base and is parallel to the main shaft axis. The two ends of the motor gear shaft are mounted on the motor bearing housing via bearing II. The servo motor is mounted on the base and is coaxial with the motor gear shaft. The output shaft of the servo motor reducer is connected to the motor gear shaft via a coupling. The force on the base in the inverted state is decomposed and transmitted, so that it can be upright and fixed for rotation during operation, and inverted and fixed for vehicle transport when not in operation. It can also support the 360-degree rotation of the radar antenna assembly in an eccentric state. The bearing I on the main shaft and the bearing II on the motor gear shaft are both angular contact ball bearings. The bearing I on the main shaft is fixed with a pressure ring to adjust the axial movement of the main shaft.

2. The transmission structure of the vehicle-mounted, tiltable, high-load servo seat as described in claim 1, characterized in that, The main shaft is provided with a positioning shoulder, one side of which contacts and limits the bearing I, and the other side contacts and limits the drive gear.

3. The transmission structure of the vehicle-mounted, collapsible, high-load servo seat as described in claim 1, characterized in that, The base is made of casting.

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