Transmission structure of vehicle-mounted lodging heavy-load servo seat body

Abstract

The invention discloses a transmission structure of a vehicle-mounted lodging heavy-load servo seat body. The transmission structure comprises a seat body, a main shaft, a main gear, a motor gear shaft, a motor bearing seat, a coupler and a servo motor, the two ends of the spindle are installed in the center of the base through bearings I, the driving gear is coaxially sleeved and fixed to the middle of the spindle, the transmission gear and the motor gear shaft are of an integrated structure, and the driving gear is in meshing transmission with the transmission gear on the motor gear shaft. The motor bearing seat is mounted on the seat body and parallel to the axis of the spindle; the two ends of the motor gear shaft are mounted on the motor bearing seat through bearings II; the servo motor is installed on the seat body and is coaxial with the motor gear shaft, and an output shaft of a servo motor speed reducer is connected with the motor gear shaft through a coupler. Upright fixed rotation can be achieved during working, and lodging fixed vehicle-mounted transportation can be achieved during non-working.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical structures, and in particular to a transmission structure of a vehicle-mounted retractable large-load servo seat. Background Art

[0002] The vehicle-mounted radar servo seat is installed on the roof of the communication vehicle as a whole. The height in the upright state is too high, and the position is not locked, which is inconvenient for the vehicle to be transported. Therefore, when not in use, the equipment is in a horizontal lying state on the roof, and is in a vertical upright state when in use. Therefore, the vehicle-mounted radar servo seat needs to ensure that the radar rotates upright during operation and is inverted and fixed in the non-operating state. Since the transmission gear is directly coaxially mounted on the output shaft of the servo motor reducer, the transmission gear is meshed with the driving gear. This servo motor directly transmits to the driving gear in a way that the axis tilts under long-term inversion force, which will damage the motor. In addition, in the working state, it is also necessary to carry the radar antenna assembly with a turning radius of 0.7 meters and a weight of 60kg, which rotates 360 degrees in an eccentric state. Therefore, a transmission mechanism is needed to solve the problem that the vehicle-mounted radar servo seat can be inverted and bear large eccentric loads. Summary of the invention

[0003] In view of this, the present invention provides a transmission structure of a vehicle-mounted retractable large-load servo seat, which can realize upright fixed rotation when working and retracted fixed vehicle transportation when not working.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A transmission structure of a vehicle-mounted retractable large-load servo seat, comprising a seat, a main shaft, a driving gear, a transmission gear, a motor gear shaft, a motor bearing seat, a coupling and a servo motor;

[0006] The two ends of the main shaft are installed in the center of the seat body through bearing I, the driving gear is coaxially mounted and fixed in the middle of the main shaft, the transmission gear and the motor gear shaft are an integrated structure, and the driving gear is meshed with the transmission gear on the motor gear shaft for transmission; the motor bearing seat is installed on the seat body and is parallel to the axis of the main shaft; the two ends of the motor gear shaft are installed on the motor bearing seat through bearing II; the servo motor is installed on the seat body and is coaxial with the motor gear shaft, and the output shaft of the servo motor reducer is connected to the motor gear shaft through a coupling.

[0007] Furthermore, a positioning shoulder is provided on the main shaft, one side of the positioning shoulder is in contact with the bearing I for limiting position, and the other side of the positioning shoulder is in contact with the driving gear for limiting position.

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

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

[0010] Furthermore, the seat body is formed by casting.

[0011] Beneficial effects:

[0012] 1. The two shaft systems of the present invention respectively support the main shaft and the output shaft of the servo motor, and adopt a coupling connection method, so as to decompose and transmit the force of the seat body in the inverted state, thereby solving the problem of motor damage during use. In addition, the servo motor and the driving gear are not directly connected by transmission, and the motor gear shaft and the output shaft of the servo motor reducer are connected through a coupling, which can avoid the inclination of the axis caused by long-term inverted force; the transmission gear and the motor gear shaft are an integrated structure to avoid shaking and gaps, thereby improving reliability.

[0013] 2. The bearing I on the main shaft of the present invention and the bearing II on the motor gear shaft are both angular contact ball bearings, which can carry the radar antenna assembly with a turning radius of 0.7 meters and a weight of 60 kg and rotate 360 ​​degrees in an eccentric state, can fall over and withstand large eccentric loads, and have high reliability.

[0014] 3. The bearing I on the main shaft of the present 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. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Among them, 1-seat body, 2-spindle, 3-driving gear, 4-spindle upper bearing, 5-spindle lower bearing, 6-motor gear shaft, 7-motor gear shaft upper bearing, 8-motor gear shaft lower bearing, 9-motor bearing seat, 10-coupling, 11-servo motor. DETAILED DESCRIPTION

[0017] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0018] The present invention provides a transmission structure of a vehicle-mounted retractable large-load servo seat, such as Figure 1 As shown, the transmission structure includes a seat body 1, a main shaft 2, a driving gear 3, a motor gear shaft 6, a motor bearing seat 9, a coupling 10 and a servo motor 11.

[0019] The seat body 1 is a bearing seat body, and the seat body 1 is formed by casting; the two ends of the main shaft 2 are installed in the center of the seat body 1 through bearings I, the driving 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 an integrated structure, and the driving gear 3 is meshed with the transmission gear on the motor gear shaft 6 for transmission; the motor bearing seat 9 is installed on the seat body 1, parallel to the axis of the main shaft 2; the two ends of the motor gear shaft 6 are installed on the motor bearing seat 9 through bearings II; the servo motor 11 is installed on the seat body 1, coaxial with the motor gear shaft 6, and the output shaft of the servo motor 11 reducer is connected to the motor gear shaft 6 through a coupling 10.

[0020] Specifically, bearing I is divided into an upper spindle bearing 4 and a lower spindle bearing 5. The spindle 2 is assembled in the center of the seat body 1 through the upper spindle bearing 4 and the lower spindle bearing 5. The upper spindle bearing 4 and the lower spindle bearing 5 both adopt angular contact ball bearings and are fixed with a pressure ring to adjust the axial movement of the spindle 2.

[0021] A positioning shoulder is provided on the main shaft 2, one side of the positioning shoulder contacts with the bearing 4 on the main shaft for limiting position, and the other side of the positioning shoulder contacts with the driving gear 3 for limiting position.

[0022] The motor gear shaft 6 is fixed on the motor bearing seat 9 through the motor gear shaft upper bearing 7 and the motor gear shaft lower bearing 8. Similarly, the motor gear shaft upper bearing 7 and the motor gear shaft lower bearing 8 also adopt angular contact ball bearings.

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

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

Claims

1. A transmission structure of a vehicle-mounted lodging large-load servo seat, characterized in that: It includes a seat body, a main shaft, a driving gear, a transmission gear, a motor gear shaft, a motor bearing seat, a coupling and a servo motor; The two ends of the main shaft are installed in the center of the seat body through bearing I, the driving gear is coaxially mounted and fixed in the middle of the main shaft, the transmission gear and the motor gear shaft are an integrated structure, and the driving gear is meshed with the transmission gear on the motor gear shaft for transmission; the motor bearing seat is installed on the seat body and is parallel to the axis of the main shaft; the two ends of the motor gear shaft are installed on the motor bearing seat through bearing II; the servo motor is installed on the seat body and is coaxial with the motor gear shaft, and the output shaft of the servo motor reducer is connected to the motor gear shaft through a coupling.

2. The transmission structure of the vehicle-mounted retractable large-load servo seat according to claim 1, characterized in that: The main shaft is provided with a positioning shoulder, one side of which is in contact with the bearing I for limiting position, and the other side of which is in contact with the driving gear for limiting position.

3. The transmission structure of the vehicle-mounted retractable large-load servo seat according to claim 1, characterized in that: The bearing I on the main shaft and the bearing II on the motor gear shaft are both angular contact ball bearings.

4. The transmission structure of the vehicle-mounted retractable large-load servo seat according to any one of claims 1 to 3, characterized in that: The bearing I on the main shaft is fixed by a pressure ring to adjust the axial movement of the main shaft.

5. The transmission structure of the vehicle-mounted retractable large-load servo seat according to claim 1, characterized in that: The seat body is made of casting.

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