Quick connection structure for electric actuator

Abstract

The utility model provides a quick connection structure for an electric actuator, and relates to the technical field of electric actuators, the quick connection structure comprises a first support, a second support and a positioning structure, the interior of the first support is rotatably connected with an output shaft, the interior of the second support is rotatably connected with an input shaft, and one end of the output shaft is provided with a positioning notch; a positioning rod is integrally formed at one end of the input shaft; the positioning structure comprises a plurality of first positioning teeth and a plurality of second positioning teeth. Storage notches are machined in the bottom ends of the two sides of the first support. According to the technical key points, a positioning rod on an input shaft can be cut into a positioning notch in an output shaft from one side to the other side, so that a plurality of first positioning teeth and a plurality of second positioning teeth are meshed with each other, and four fastening bolts penetrate through four corners of a first bracket and four corners of a second bracket respectively to fix the first bracket and the second bracket; the output shaft and the input shaft are always in a coaxial state, the transmission effect between the existing output shaft and input shaft is not influenced, the structure is simple, and the operation is rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of electric actuators, in particular to a quick-connect structure for electric actuators. Background Art

[0002] Electric actuators mainly refer to drive devices that can provide linear or rotary motion. They use some kind of drive energy and work under some kind of control signal. The actuator uses liquid, gas, electricity or other energy and converts it into a drive through a motor, cylinder or other device. Its basic types include partial rotation, multi-rotation and linear travel. The main components of electric actuators include motors, reducers, sensors and controllers. Among them, the motor is the core component that drives the actuator to move, the reducer can reduce the output speed and increase the output torque, the sensor can monitor the position and status of the actuator in real time, and the controller is responsible for precise control of the actuator.

[0003] The existing Chinese patent document publication number CN216813066U is a quick-connect structure for an electric actuator. It uses the shape of a limit groove to limit the internal ball. The ball is driven by the rotation of the input or output shaft. After the ball rotates, it is stuck in the limit groove, and the input or output shaft is connected to the mounting tube, so that power can be transmitted to the output shaft through the input or shaft. It has a simple structure, is easy to install and disassemble, and has good stability in use.

[0004] However, in the process of implementing the above technical solution, it is found that the above technical solution has the following technical problems:

[0005] The existing quick-connect structure for electric actuators mainly relies on the limitation of the ball by the limit groove to connect the input or output shaft with the mounting tube to realize power transmission, so as to achieve rapid assembly and automatic compensation for the concentricity of the input shaft and the output shaft. However, in actual use, since there is a gap between the input shaft and the output shaft during the switching process of the rotation direction after the connection, it is easy to affect the control accuracy of the actuator's rotation control component and reduce the control effect of the electric actuator. Utility Model Content

[0006] In order to overcome the shortcomings of the existing quick-connect structure for electric actuators, which is caused by the presence of a gap during the switching process of the rotation direction between the input shaft and the output shaft after the connection, which easily affects the control accuracy of the actuator's rotation control component and reduces the control effect of the electric actuator, an embodiment of the present application provides a quick-connect structure for an electric actuator, by allowing the positioning rod on the input shaft to cut into the positioning notch on the output shaft from one side to the other, thereby controlling the output shaft and the input shaft to be coaxial, and making the surfaces of the first bracket and the second bracket fit together, so that the multiple first positioning teeth and the multiple second positioning teeth engage with each other, and after four fastening bolts are respectively passed through the installation notches at the four corners of the first bracket and the second bracket, it can be ensured that the output shaft and the input shaft are always in a coaxial state, without affecting the existing transmission effect between the output shaft and the input shaft, and the structure is simple and the operation is quick.

[0007] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0008] A quick-connect structure for an electric actuator comprises a first bracket, a second bracket and a positioning structure, wherein the second bracket is arranged at the bottom of the first bracket;

[0009] The positioning structure is arranged between the first bracket and the second bracket;

[0010] The positioning structure is processed together with the first bracket and the second bracket. The first bracket is internally rotatably connected to the output shaft, and the second bracket is internally rotatably connected to the input shaft.

[0011] In a possible implementation, the positioning structure includes multiple first positioning teeth and multiple second positioning teeth, one end of the multiple first positioning teeth is integrated with the bottom of both sides of the first bracket, and one end of the multiple second positioning teeth is integrated with the top of both sides of the second bracket.

[0012] In a possible implementation, the plurality of first positioning teeth and the plurality of second positioning teeth are arranged at equal intervals and facing each other, and the plurality of first positioning teeth and the plurality of second positioning teeth are engaged with each other.

[0013] In a possible implementation, receiving slots are processed at the bottom ends of both sides of the first bracket, and the connection points between the plurality of first positioning teeth and the first bracket are located at the center of the top inner wall of the receiving slots.

[0014] In a possible implementation, a positioning notch is machined at one end of the output shaft, and a positioning rod is integrally formed at one end of the input shaft. The positioning rod cuts into the interior of the positioning notch from one side to the other in the horizontal direction, and the surface of the positioning rod fits against the inner wall of the positioning notch.

[0015] In a possible implementation, installation slots are processed at the four corners of the first bracket and the second bracket, and the same fastening bolt is arranged inside the two installation slots located at the same corner. The installation slot is in a straight line shape, and the direction of the installation slot is perpendicular to the direction of the multiple first positioning teeth.

[0016] In a possible implementation, the fastening bolt includes a round rod, one end of the round rod is processed with a threaded rod, the other end of the round rod is processed with a bolt head, and the surface of the round rod is in contact with the inner wall of the installation slot.

[0017] In summary, the present invention includes at least one of the following beneficial technical effects:

[0018] 1. By making the positioning rod on the input shaft cut into the positioning notch on the output shaft from one side to the other side, the output shaft and the input shaft are controlled to be coaxial, and the surfaces of the first bracket and the second bracket are fitted, so that the plurality of first positioning teeth and the plurality of second positioning teeth are engaged with each other, after four fastening bolts are respectively passed through the installation notches at the four corners of the first bracket and the second bracket, the output shaft and the input shaft are always in a coaxial state, without affecting the transmission effect between the existing output shaft and the input shaft, and the structure is simple and the operation is fast;

[0019] 2. By making the surface of the round rod of the fastening bolt fit with the inner wall of the installation slot, and coordinating the engagement of multiple second positioning teeth and multiple first positioning teeth with each other, the first bracket and the second bracket can be restricted from moving forward, backward, left and right in the horizontal plane, which is beneficial to ensure the stability and safety of power transmission between the output shaft and the input shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 The enlarged schematic diagram of the middle A part;

[0022] Figure 3 This is a schematic diagram of the structure of the utility model when the first bracket and the second bracket are disconnected;

[0023] Figure 4 This is a schematic diagram of the structure of the utility model when the output shaft and the input shaft are disconnected;

[0024] Figure 5 It is a structural schematic diagram of the output shaft of the utility model.

[0025] Description of the drawings: 1. output shaft; 2. first bracket; 3. fastening bolt; 4. second bracket; 5. storage slot; 6. installation slot; 7. first positioning tooth; 8. second positioning tooth; 9. input shaft; 10. positioning rod; 11. positioning slot. DETAILED DESCRIPTION

[0026] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0027] Embodiment 1:

[0028] This embodiment introduces a specific structure of a quick-connect structure for an electric actuator. Figure 1-Figure 5 As shown, it includes a first bracket 2, a second bracket 4 arranged at the bottom of the first bracket 2, and a positioning structure arranged between the first bracket 2 and the second bracket 4, the positioning structure includes a plurality of first positioning teeth 7 and a plurality of second positioning teeth 8, the first bracket 2 is internally rotatably connected to the output shaft 1, and the second bracket 4 is internally rotatably connected to the input shaft 9;

[0029] In order to quickly correct the output shaft 1 and the input shaft 9 from an eccentric state to a coaxial state, as shown in FIG. Figure 4 and Figure 5 As shown, a positioning notch 11 is processed at one end of the output shaft 1, and a positioning rod 10 is integrally formed at one end of the input shaft 9. By cutting the positioning rod 10 into the interior of the positioning notch 11 from one side to the other side in the horizontal direction, the surface of the positioning rod 10 fits with the inner wall of the positioning notch 11, so as to facilitate the control of the two mutually deviated shafts to be in a concentric state;

[0030] Secondly, by making one end of the plurality of first positioning teeth 7 and the bottom of both sides of the first bracket 2 integrally processed, and making one end of the plurality of second positioning teeth 8 and the top of both sides of the second bracket 4 integrally processed, it is convenient to process the positioning structure with the first bracket 2 and the second bracket 4 together, without using parts other than bolts, nuts and washers;

[0031] At the same time, in order to limit the relative movement of the first bracket 2 and the second bracket 4 by using the plurality of first positioning teeth 7 and the plurality of second positioning teeth 8, it is convenient to control the output shaft 1 and the input shaft 9 to be coaxial so that the output shaft 1 and the input shaft 9 always maintain this state, such as Figure 1 and Figure 2 As shown, the plurality of first positioning teeth 7 and the plurality of second positioning teeth 8 are arranged at equal intervals and facing each other. After the plurality of first positioning teeth 7 and the plurality of second positioning teeth 8 are engaged with each other, the first bracket 2 and the second bracket 4 can be restricted from moving in a horizontal plane.

[0032] Furthermore, in order to ensure that the connection area between the second bracket 4 and the first bracket 2 can be sealed without affecting the fixation and relative movement of the two, as shown in FIG. Figure 1and Figure 2 As shown, the bottom ends of both sides of the first bracket 2 are processed with receiving notches 5, and by making the connection points of the multiple first positioning teeth 7 and the first bracket 2 located at the center of the top inner wall of the receiving notch 5, it is possible to provide space for the multiple second positioning teeth 8 to move relative to the multiple first positioning teeth 7, and also by making the multiple second positioning teeth 8 protruding from the top of the second bracket 4 be received inside the receiving notch 5, it is ensured that the bottom end of the first bracket 2 and the top end of the second bracket 4 can fit each other;

[0033] Further, in order to make the second bracket 4 and the first bracket 2 relatively movable, they can be fixed, such as Figure 1 and Figure 3 As shown, the four corners of the first bracket 2 and the second bracket 4 are processed with mounting grooves 6, and the same fastening bolt 3 is arranged inside the two mounting grooves 6 located at the same corner. By setting the mounting grooves 6 into a straight line, and the direction of the mounting grooves 6 is perpendicular to the direction of the multiple first positioning teeth 7, when the mutual engagement positions of the multiple first positioning teeth 7 and the multiple second positioning teeth 8 are controlled, the second bracket 4 and the first bracket 2 can be relatively movable, and when the mounting grooves 6 on the first bracket 2 and the mounting grooves 6 on the second bracket 4 are out of position, the fastening bolt 3 can still pass through the two mounting grooves 6 at the same corner.

[0034] By adopting the above technical solution:

[0035] The above design processes receiving notches 5 at the bottom of both sides of the first bracket 2, processes a plurality of first positioning teeth 7 at the center of the inner wall at the top of the receiving notch 5, and processes a plurality of second positioning teeth 8 at the top of both sides of the second bracket 4. When the first bracket 2 and the second bracket 4 are controlled to move relative to each other, and the output shaft 1 and the input shaft 9 are rotated, the positioning rod 10 on the input shaft 9 can be cut into the positioning notch 11 on the output shaft 1 from one side to the other side, ensuring that the surface of the positioning rod 10 fits with the inner wall of the positioning notch 11. After controlling the output shaft 1 and the input shaft 9 to be coaxial, the surfaces of the first bracket 2 and the second bracket 4 are fit, so that the plurality of first positioning teeth 7 and the plurality of second positioning teeth 8 are engaged with each other, and after the fastening bolts 3 are passed through the installation notches 6 at the four corners of the first bracket 2 and the second bracket 4 for assembly and fixing, it can be ensured that the output shaft 1 and the input shaft 9 are always in a coaxial state, without affecting the transmission effect between the existing output shaft 1 and the input shaft 9, and no parts are added to the first bracket 2 and the second bracket 4. The structure is simple, the installation is fast, and the coaxial state of the output shaft 1 and the input shaft 9 is easy to maintain.

[0036] Embodiment 2:

[0037] Based on Example 1, this example introduces the specific structure of the fastening bolt 3, which includes a round rod, one end of which is processed with a threaded rod, and the other end of which is processed with a bolt head;

[0038] In order to limit the movement of the plurality of second positioning teeth 8 and the plurality of first positioning teeth 7 in the longitudinal direction after they are engaged with each other, thereby increasing the stress at the connection point between the output shaft 1 and the input shaft 9, as shown in FIG. Figure 1 As shown, the surface of the round rod is fitted with the inner wall of the installation slot 6, and the plurality of second positioning teeth 8 and the plurality of first positioning teeth 7 are engaged with each other, so that the first bracket 2 and the second bracket 4 can be restricted from moving forward, backward, left and right in the horizontal plane;

[0039] By adopting the above technical solution:

[0040] The above-mentioned design makes the surface of the round rod fit with the inner wall of the installation groove 6, and cooperates with multiple second positioning teeth 8 and multiple first positioning teeth 7 to engage with each other. After the first bracket 2 and the second bracket 4 are connected and fixed by the tightening bolts 3, the first bracket 2 and the second bracket 4 can be restricted from moving forward, backward, left and right in the horizontal plane, which is beneficial to ensure the stability and safety of power transmission between the output shaft 1 and the input shaft 9.

[0041] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A quick-connect structure for an electric actuator, characterized in that: include: A first bracket (2); A second bracket (4) disposed at the bottom of the first bracket (2); A positioning structure, which is arranged between the first bracket (2) and the second bracket (4); The positioning structure is processed together with the first bracket (2) and the second bracket (4); the first bracket (2) is internally rotatably connected to the output shaft (1), and the second bracket (4) is internally rotatably connected to the input shaft (9); The positioning structure comprises a plurality of first positioning teeth (7) and a plurality of second positioning teeth (8), one end of the plurality of first positioning teeth (7) is processed into an integral body with the bottom of both sides of the first bracket (2), one end of the plurality of second positioning teeth (8) is processed into an integral body with the top of both sides of the second bracket (4), the plurality of first positioning teeth (7) and the plurality of second positioning teeth (8) are arranged at equal intervals and facing each other, and the plurality of first positioning teeth (7) and the plurality of second positioning teeth (8) are engaged with each other.

2. A quick-connect structure for an electric actuator as claimed in claim 1, characterized in that: The bottom ends of both sides of the first bracket (2) are processed with receiving slots (5), and the connection points between the plurality of first positioning teeth (7) and the first bracket (2) are located at the center of the top inner wall of the receiving slot (5).

3. A quick-connect structure for an electric actuator as claimed in claim 1, characterized in that: One end of the output shaft (1) is processed with a positioning notch (11), and one end of the input shaft (9) is integrally formed with a positioning rod (10); The positioning rod (10) cuts into the interior of the positioning notch (11) from one side to the other side in the horizontal direction, and the surface of the positioning rod (10) fits with the inner wall of the positioning notch (11).

4. A quick-connect structure for an electric actuator as claimed in claim 1, characterized in that: The first bracket (2) and the second bracket (4) are each processed with mounting notches (6) at the four corners, and the same fastening bolt (3) is disposed inside two mounting notches (6) located at the same corner; The installation slot (6) is in a straight line shape, and the orientation of the installation slot (6) is perpendicular to the orientation of the plurality of first positioning teeth (7).

5. A quick-connect structure for an electric actuator as claimed in claim 4, characterized in that: The fastening bolt (3) comprises a round rod, one end of which is processed with a threaded rod, and the other end of which is processed with a bolt head; Wherein, the surface of the round rod is in contact with the inner wall of the installation slot (6).

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