A linear rudder assembly structure

Abstract

The invention discloses a linear servo assembly structure, including a plurality of servo components, a motor fixing plate, and a connecting plate. The motor fixing plate is used to connect and fix the motor of the servo component. The motor of the servo component is connected to one end of the screw of the servo component. The linear traction rudder arm of the servo component is connected to the screw nut of the servo component. The other end of the screw of the servo component is installed on the connecting plate through a bearing. A guide column is arranged between the connecting plate and the motor fixing plate. The linear traction rudder arm of the servo component is sleeved on the guide column. The linear position sensor of the servo component is installed between the motor fixing plate and the connecting plate. The structures of the invention support each other and are connected to form a compact structure. The internal hollow channel can be reserved for other pipelines or accessories. The overall structure occupies a small space, has high strength, is easy to manufacture, and multiple servo components are combined to meet the requirements of the freedom of movement of the bionic robot.

Description

Technical Field

[0001] The invention relates to a linear rudder unit structure, belonging to the technical field of electromechanics. Background Art

[0002] A servo is generally composed of a DC motor, a reduction gear set, a sensor, and a control circuit. It sends a signal to specify the output shaft rotation angle. A servo is designed to control an object to rotate at a certain angle (such as a robot's joint). Existing servos are generally single designs. Due to the design of the existing servo structure, there is a problem of mismatch between the size and the output torque. It either cannot meet the robot's external size requirements or cannot achieve a large torque output. In addition, the bionic robot requires multiple degrees of freedom of movement, which cannot be controlled by a single servo structure. Therefore, it is necessary to innovate the servo structure. Summary of the invention

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a linear servo unit structure.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is: a linear servo gear group structure, including a plurality of servo gear components, a motor fixing plate, and a connecting plate, the motor fixing plate is used to connect and fix the motor of the servo gear component, the motor of the servo gear component is connected to one end of the screw rod of the servo gear component, the linear traction rudder arm of the servo gear component is connected to the screw rod nut of the servo gear component, the other end of the screw rod of the servo gear component is installed on the connecting plate through a bearing, a guide column is arranged between the connecting plate and the motor fixing plate, the linear traction rudder arm of the servo gear component is sleeved on the guide column, and the linear position sensor of the servo gear component is installed between the motor fixing plate and the connecting plate.

[0005] Furthermore, the linear traction rudder arm of each of the servo gear components is sleeved on two guide pillars, and the two guide pillars are distributed on both sides of the screw rod and are parallel to the screw rod.

[0006] Furthermore, the motor fixing plate and the connecting plate are both hollow annular plates, and the motors of several servo gear assemblies are evenly installed on the annular plate in a circumferentially uniform manner; the two guide pillars on which the linear traction rudder arm of each servo gear assembly is sleeved are evenly distributed on different circumferences of the annular plate, so that the linear traction rudder arm is arranged on the plane where it is located along the radius direction of the circle.

[0007] The motor fixing plate and the connecting plate are fixed into a three-dimensional space structure by multiple guide pillars distributed on the circumference. The two guide pillars distributed inside and outside the servo assembly play the role of guiding and bearing torque. Each servo moving part is driven separately, and the parts support each other and are compactly combined. The hollow channel of the internal stroke can also be left for other pipelines or accessories. The structure occupies a small space as a whole, has a simple structure and good strength.

[0008] Furthermore, a linear position sensor is arranged on one side of the guide column, the linear traction rudder arm is connected to the sensor slide handle, and the sensor slide handle moves with the linear traction rudder arm to generate a position signal to be fed back to the servo control circuit board.

[0009] Furthermore, the control circuit board of the servo assembly is mounted on the connecting plate, and the linear position sensor is connected to the control circuit board.

[0010] Furthermore, the motor is connected through a coupling and drives the lead screw, driving a linear traction rudder arm connected to the lead screw nut, the connecting plate and the motor fixing plate are both set to be circular hollow plates of the same size, a plurality of guide pillars connect and fix the motor fixing plate and the connecting plate, the linear traction rudder arm relies on two sleeved guide pillars to guide and bear torque, the linear position sensors are evenly distributed between the connecting plate and the motor fixing plate, the control circuit boards are evenly distributed on the connecting plate, and the control circuit board of each servo assembly controls the movement of the components of the servo assembly.

[0011] The beneficial technical effects of the present invention are: the structures support each other and are connected to form a compact structure, the internal hollow channel can be left for other pipelines or accessories, the overall structure occupies a small space, has high strength, is easy to manufacture, and is combined with multiple servo components to meet the requirements for the freedom of movement of the bionic robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the partial cutaway structure of the present invention.

[0014] In the figure: 1. bearing seat, 2. guide column, 3. screw, 4. screw nut, 5. linear traction rudder arm, 6. coupling, 7. linear position sensor, 8. sensor slide handle, 9. motor, 10. motor fixing plate, 11. connecting plate, 12. control circuit board. DETAILED DESCRIPTION

[0015] Example 1

[0016] A linear servo assembly structure includes a plurality of servo assemblies, a motor fixing plate 10, and a connecting plate 11. The motor fixing plate 10 is used to connect and fix a motor 9 of the servo assembly. The motor 9 can be a DC motor or a stepping servo motor. The motor 9 of the servo assembly is connected to one end of a lead screw 3 of the servo assembly. A linear traction rudder arm 5 of the servo assembly is connected to a lead screw nut 4 of the servo assembly. The other end of the lead screw 3 of the servo assembly is mounted on the connecting plate 11 through a bearing. A guide column 2 is arranged between the connecting plate 11 and the motor fixing plate 10. The linear traction rudder arm 5 of the servo assembly is sleeved on the guide column 2. A linear position sensor 7 of the servo assembly is mounted between the motor fixing plate 10 and the connecting plate 11.

[0017] Example 2

[0018] As the specific structural design of Example 1, Figure 1 As shown, the linear traction rudder arm sleeve 5 of each steering gear assembly is connected to two guide pillars 2, and the two guide pillars 2 are distributed on both sides of the screw rod 3 and are parallel to the screw rod 3.

[0019] Preferably, the motor fixing plate 10 and the connecting plate 11 are both hollow annular plates, and the motors 9 of several servo gear assemblies are evenly installed on the annular plate in a circumferentially uniform distribution; the two guide pillars 2 connected to the linear traction rudder arm 5 of each servo gear assembly are evenly distributed on different circumferences of the annular plate, so that the linear traction rudder arm 5 is arranged on the plane where it is located along the radius direction of the circle.

[0020] The motor fixing plate and the connecting plate are fixed into a three-dimensional space structure by multiple guide pillars distributed on the circumference. The two guide pillars distributed inside and outside the servo assembly play the role of guiding and bearing torque. Each servo moving part is driven separately, and the parts support each other and are compactly combined. The hollow channel of the internal stroke can also be left for other pipelines or accessories. The structure occupies a small space as a whole, has a simple structure and good strength.

[0021] Preferably, a linear position sensor 7 is provided on one side of the guide column 2, and the linear traction rudder arm 5 is connected to the sensor slide handle 8, and the sensor slide handle 8 moves with the linear traction rudder arm 5 to generate a position signal.

[0022] Preferably, the control circuit board 12 of the servo assembly is mounted on the connecting plate 11 , and the linear position sensor 7 is connected to the control circuit board 12 .

[0023] Preferably, the motor 9 is connected through the coupling 6 and drives the lead screw 3, driving the linear traction rudder arm 5 connected to the lead screw nut 4, the connecting plate 11 and the motor fixing plate 10 are both set to circular hollow plates of the same size, and a plurality of guide pillars 2 connect and fix the motor fixing plate 10 and the connecting plate 11. The linear traction rudder arm 5 relies on the two sleeved guide pillars 2 to guide and bear torque, the linear position sensor 7 is evenly distributed between the connecting plate 11 and the motor fixing plate 10, and the control circuit board 12 is evenly distributed on the connecting plate 11. The control circuit board 12 of each servo assembly controls the movement of the components of the servo assembly.

[0024] It can be seen from the above implementation examples that the structures of the present invention support each other and are connected to form a compact structure. The internal hollow channel can be reserved for other pipelines or accessories. The overall structure occupies a small space, has high strength, is easy to manufacture, and is combined with multiple servo components to meet the requirements for the freedom of movement of the bionic robot.

[0025] The above embodiments are merely used as explanations of the technical solutions of the present invention and cannot be used as limitations of the technical solutions of the present invention. Any simple improvements based on the present invention fall within the protection scope of the present invention.

Claims

1. A linear servo unit structure, characterized in that: The invention comprises a plurality of servo gear assemblies, a motor fixing plate and a connecting plate. The motor fixing plate is used for connecting and fixing the motor of the servo gear assembly. The motor of the servo gear assembly is connected to one end of the lead screw of the servo gear assembly. The linear traction rudder arm of the servo gear assembly is connected to the lead screw nut of the servo gear assembly. The other end of the lead screw of the servo gear assembly is installed on the connecting plate through a bearing. A guide column is arranged between the connecting plate and the motor fixing plate. The linear traction rudder arm of the servo gear assembly is sleeved on the guide column. The linear position sensor of the servo gear assembly is installed between the motor fixing plate and the connecting plate. A linear position sensor is arranged on one side of the guide column. The linear traction rudder arm is connected to a sensor sliding handle. The sensor sliding handle generates a position signal following the movement of the linear traction rudder arm and feeds the signal back to the control circuit board.

2. The linear servo assembly structure according to claim 1, characterized in that: The linear traction rudder arm of each steering gear assembly is sleeved on two guide pillars, and the two guide pillars are distributed on both sides of the screw rod and are parallel to the screw rod.

3. The linear servo assembly structure according to claim 2, characterized in that: The motor fixing plate and the connecting plate are both hollow annular plates, and the motors of several servo gear assemblies are evenly installed on the annular plate in a circumferentially uniform manner; the two guide pillars sleeved on the linear traction rudder arm of each servo gear assembly are evenly distributed on different circumferences of the annular plate, so that the linear traction rudder arm is arranged on the plane where it is located and along the radius direction of the circle.

4. The linear servo assembly structure according to claim 2, characterized in that: The control circuit board of the servo engine assembly is mounted on the connecting plate, and the linear position sensor is connected to the control circuit board.

5. The linear servo assembly structure according to claim 3, characterized in that: The motor is connected through a coupling and drives the lead screw, which drives the linear traction rudder arm connected to the lead screw nut. The connecting plate and the motor fixing plate are both set to circular hollow plates of the same size. A number of guide pillars connect and fix the motor fixing plate and the connecting plate. The linear traction rudder arm relies on two sleeved guide pillars to guide and bear torque. The linear position sensors are evenly distributed between the connecting plate and the motor fixing plate. The control circuit boards are evenly distributed on the connecting plate. The control circuit board of each servo assembly controls the movement of the components of the servo assembly.

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