Actuator rotor and actuator

Abstract

The utility model belongs to the technical field of switch valves, and discloses an actuator rotor and an actuator. The actuator rotor comprises a rotor body, a first trigger structure and a second trigger structure are arranged on the rotor body at intervals in the axial direction of the rotor body, and a whole circle is defined by the first trigger structure and the second trigger structure in the circumferential direction of the rotor body. The first trigger structure and the second trigger structure alternately and directly press the contacts of the limit switch, so that a circuit where the limit switch is located is switched on or switched off, opening or closing of the switch valve is achieved, the structure of the actuator rotor optimizes the trigger mode of the limit switch assembly, loss of force in the transmission process is reduced, and the reliability of the actuator rotor is improved. And the reliability of the actuator rotor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switch valves, in particular to an actuator rotor and an actuator. Background Art

[0002] The rotor body 200' in the electric actuator currently used to control the opening or closing of the ball valve on the market is shaped as follows: Figure 1 The rotor body 200 has the shape shown, which includes two first protrusions 210' on the upper layer and two second protrusions 220' on the lower layer, and the adjacent first protrusions 210' and the second protrusions 220' form an angle of 90° with each other; the actual use scenario of the rotor body 200' is as follows Figure 2 As shown, the rotor body 200′ is located next to the limit switch. During the rotation of the rotor body 200′, the first protrusion 210′ ​​moves the first paddle 112′ on the first limit switch 110′ and presses the first contact 111′, and the circuit where the first limit switch 110′ is located is turned on or off, or the second protrusion 220′ moves the second paddle 122′ on the second limit switch 120′ and presses the second contact 121′, and the circuit where the second limit switch 120′ is located is turned on or off.

[0003] Since the first paddle 112′ and the second paddle 122′ are both steel sheets, they may rust, fall off, break, etc. during use, and force is transmitted through the first paddle 112′ and the second paddle 122′, and the force will be lost during the transmission process; and in the actual assembly process, the angle and length of the paddle and the relative position of the paddle and the rotor body 200′ will affect the actual opening of the ball valve. Therefore, in the actual assembly process, it is necessary to repeatedly adjust the position of the rotor body relative to the paddle, which seriously affects the production efficiency.

[0004] Therefore, an actuator rotor is urgently needed to solve the problems in the prior art. Utility Model Content

[0005] The utility model aims to provide an actuator rotor, optimize the triggering mode of the limit switch assembly, reduce the loss of force in the transmission process, and improve the reliability of the actuator rotor.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The actuator rotor is used to trigger the limit switch assembly, and the limit switch assembly is provided with a contact point; the actuator rotor comprises:

[0008] A rotor body, wherein a first trigger structure and a second trigger structure are arranged on the rotor body in an axial direction thereof;

[0009] The first trigger structure and the second trigger structure enclose a complete circle along the circumferential direction of the rotor body, and the first trigger structure and the second trigger structure alternately press directly against the contacts of the limit switch assembly.

[0010] Optionally, the first trigger structure includes a first protrusion and a second protrusion oppositely arranged along the radial direction of the rotor body; the second trigger structure includes a third protrusion and a fourth protrusion oppositely arranged along the radial direction of the rotor body;

[0011] The first protrusion, the second protrusion, the third protrusion and the fourth protrusion form a complete circle along the circumferential direction of the rotor body and each occupies a quarter of the arc segment.

[0012] Optionally, the first trigger structure further includes a first guiding portion and a second guiding portion. Along the rotation direction of the rotor body, the first guiding portion is arranged between the leading end of the first protrusion and the trailing end of the second protrusion, and the second guiding portion is arranged between the trailing end of the first protrusion and the leading end of the second protrusion;

[0013] Along the rotation direction of the rotor body, the heights of the first guiding portion and the second guiding portion gradually decrease, and the first guiding portion is smoothly connected to the leading end of the first protrusion, and a first concave structure is formed at the trailing end of the first guiding portion and the second protrusion; the second guiding portion is smoothly connected to the leading end of the second protrusion, and a second concave structure is formed at the trailing end of the second guiding portion and the first protrusion.

[0014] Optionally, the second trigger structure further includes a third guiding portion and a fourth guiding portion. Along the rotation direction of the rotor body, the third guiding portion is arranged between the leading end of the third protrusion and the trailing end of the fourth protrusion, and the fourth guiding portion is arranged between the trailing end of the third protrusion and the leading end of the fourth protrusion;

[0015] Along the rotation direction of the rotor body, the heights of the third guiding portion and the fourth guiding portion gradually decrease, and the third guiding portion is smoothly connected to the leading end of the third protrusion, a third concave structure is provided at the trailing end of the third guiding portion and the fourth protrusion, the fourth guiding portion is smoothly connected to the leading end of the fourth protrusion, and a fourth concave structure is provided at the trailing end of the fourth guiding portion and the third protrusion.

[0016] Optionally, a first assembly groove is provided at the first end of the rotor body, and the first assembly groove is configured to coaxially fix the rotor body to the output end of the driving member.

[0017] Optionally, a second assembly groove is provided at the second end of the rotor body, and the second assembly groove is configured to coaxially fix the rotor body to the valve stem of the switching valve.

[0018] The utility model aims to provide an actuator rotor, optimize the triggering mode of the limit switch assembly, reduce the loss of force in the transmission process, and improve the reliability of the actuator.

[0019] To achieve this purpose, the utility model adopts the following technical solutions:

[0020] The actuator comprises a limit switch assembly and the above-mentioned actuator rotor, wherein the limit switch assembly is provided with a contact protruding thereon, and the first trigger structure and the second trigger structure on the actuator rotor are alternately pressed directly with the contact of the limit switch assembly.

[0021] Optionally, the limit switch assembly includes a first limit switch and a second limit switch arranged in parallel, the second limit switch is located above the first limit switch, the contacts include a first contact and a second contact, the first contact is protruding from the first limit switch, the second contact is protruding from the second limit switch, the first trigger structure can directly press the first contact, and the second trigger structure can directly press the second contact.

[0022] Beneficial effects:

[0023] The actuator rotor provided by the utility model comprises a rotor body, and a first trigger structure and a second trigger structure are arranged on the rotor body at intervals along the axial direction of the rotor body, and the first trigger structure and the second trigger structure are arranged to form a full circle along the circumferential direction of the rotor body. During the rotation of the rotor body, the first trigger structure and the second trigger structure are alternately pressed directly with the contacts of the limit switch, so that the circuit where the limit switch is located is turned on or off, and the switch valve is opened or closed. The structure of the actuator rotor optimizes the triggering mode of the limit switch assembly, reduces the loss of force in the transmission process, and improves the reliability of the actuator rotor. In the process of assembling the actuator rotor, it is only necessary to ensure that the first trigger structure and the second trigger structure are alternately pressed directly with the contacts of the limit switch during the rotation of the rotor body, and there is no need to repeatedly adjust the parameters of the paddle, which saves the time of assembly and debugging and greatly improves the assembly efficiency of the actuator rotor.

[0024] The actuator provided by the utility model comprises a limit switch assembly and the above-mentioned actuator rotor, wherein a contact is convexly provided on the limit switch assembly, and a first trigger structure and a second trigger structure on the actuator rotor are alternately pressed directly with the contact of the limit switch assembly, and the triggering mode of the limit switch assembly is optimized, so that the loss of force in the transmission process is reduced and the reliability of the actuator is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the rotor body structure in the prior art;

[0026] Figure 2 It is a schematic diagram of the assembly structure of the rotor body and the limit switch in the prior art;

[0027] Figure 3 It is a schematic diagram of the structure of the actuator rotor provided by the present utility model;

[0028] Figure 4 It is a schematic diagram of the structure of the rotor body provided by the present utility model from one perspective;

[0029] Figure 5 It is a circuit diagram for controlling the movement of the actuator rotor provided by the present utility model

[0030] Figure 6 It is an exploded view of the actuator rotor provided by the present utility model;

[0031] Figure 7 It is a schematic diagram of the structure of the rotor body provided by the present utility model from another perspective.

[0032] In the figure:

[0033] 110′, the first limit switch; 111′, the first contact; 112′, the first paddle; 120′, the second limit switch; 121′, the second contact; 122′, the second paddle; 200′, the rotor body; 210′, the first protrusion; 220′, the second protrusion;

[0034] 100, the limit switch assembly; 110, the first limit switch; 111, the first contact; 120, the second limit switch; 121, the second contact;

[0035] 200, the rotor body; 211, the first protrusion; 212, the second protrusion; 213, the first guiding part; 214, the second guiding part; 221, the third protrusion; 222, the fourth protrusion; 223, the third guiding part; 224, the fourth guiding part; 230, the first assembly groove;

[0036] 300, the housing; 400, the power source; 500, the driving part; 600, the control switch. Specific embodiments

[0037] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0038] In the description of the present utility model, unless otherwise clearly specified and defined, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0040] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] This embodiment provides an actuator rotor for triggering the limit switch assembly 100, and the limit switch assembly 100 is provided with a protruding contact, such as Figures 1-7As shown in the figure, the actuator rotor includes a rotor body 200. Along the axial direction of the rotor body 200, a first trigger structure and a second trigger structure are provided at intervals on the rotor body 200. Along the circumferential direction of the rotor body 200, the first trigger structure and the second trigger structure enclose a complete circle. During the rotation of the rotor body 200, the first trigger structure and the second trigger structure alternately press directly against the contacts of the limit switch assembly 100, thereby making the circuit where the limit switch is located conductive or non-conductive, realizing the opening or closing of the switching valve. The structure of this actuator rotor optimizes the triggering method of the limit switch assembly 100, reduces the loss of force during transmission, improves the reliability of the actuator rotor, and during the assembly of the actuator rotor, it only needs to ensure that the first trigger structure and the second trigger structure alternately press directly against the contacts of the limit switch during the rotation of the rotor body 200, without repeatedly debugging the parameters of the dial, saving the time of assembly and debugging, and greatly improving the assembly efficiency of the actuator rotor.

[0042] Optionally, as Figure 4 shown in the figure, the first trigger structure includes a first protrusion 211 and a second protrusion 212 that are oppositely arranged along the radial direction of the rotor body 200; the second trigger structure includes a third protrusion 221 and a fourth protrusion 222 that are oppositely arranged along the radial direction of the rotor body 200. The first protrusion 211, the second protrusion 212, the third protrusion 221, and the fourth protrusion 222 form a complete circle along the circumferential direction of the rotor body 200 and each occupies a quarter of the arc segment.

[0043] Specifically, as Figures 5-6 shown in the figure, taking the example of controlling the opening or closing of a ball valve by an actuator, the triggering process of the actuator rotor is elaborated in detail:

[0044] In this embodiment, the limit switch assembly 100 includes a first limit switch 110 and a second limit switch 120. The first limit switch 110 and the second limit switch 120 are arranged side by side along the axial direction of the rotor body 200 beside the rotor body 200. The contacts include a first contact 111 and a second contact 121. The first contact 111 protrudes from the first limit switch 110, and the second contact 121 protrudes from the second limit switch 120; the control circuit for the actuator to control the opening or closing of the ball valve includes a main circuit, a first line, and a second line. A power supply 400, a motor, and a control switch 600 are provided on the main circuit. The motor is electrically connected to the power supply 400, the motor is drivingly connected to the actuator rotor, and the actuator rotor is drivingly connected to the valve stem of the ball valve.

[0045] The first limit switch 110 and the second limit switch 120 are respectively connected to the first line and the second line in a normally closed mode (that is, when the first contact 111 is not pressed, the first line is disconnected, and when the first contact 111 is pressed, the first line is conducted; when the second contact 121 is not pressed, the second line is disconnected, and when the second contact 121 is pressed, the second line is conducted). The power supply 400 of the main circuit can be conducted or disconnected from the first line or the second line by controlling the switch 600.

[0046] It is defined that initially, one of the first protrusion 211 and the second protrusion 212 abuts against the first contact 111, the first line is in a conductive state, neither the third protrusion 221 nor the fourth protrusion 222 abuts against the second contact 121, and the second line is in a disconnected state. At this time, when the control switch 600 is adjusted so that the power supply 400 of the main circuit is connected to the first line, the motor will drive the rotor body 200 to rotate. After rotating 90°, either the first protrusion 211 or the second protrusion 212 disengages from the first contact 111, the first line is disconnected, and the motor and the rotor body 200 stop rotating. At this time, the ball valve is in a fully open state.

[0047] At the same time when the first line is disconnected, one of the third protrusion 221 and the fourth protrusion 222 directly presses the second contact 121, and the second line is conducted. At this time, the control switch 600 is continuously adjusted so that the power supply 400 of the main circuit is connected to the second line. Then the motor will drive the rotor body 200 to continue rotating. After rotating 90°, either the third protrusion 221 or the fourth protrusion 222 disengages from the second contact 121, the second line is disconnected, and the motor and the rotor body 200 stop rotating. At this time, the ball valve is in a fully closed state. At the same time, the first line is conducted again. In this way, the opening or closing of the ball valve can be controlled.

[0048] Optionally, as Figure 7As shown, the first trigger structure further includes a first guiding portion 213 and a second guiding portion 214. Along the rotation direction of the rotor body 200, the first guiding portion 213 is disposed between the leading end of the first protrusion 211 and the trailing end of the second protrusion 212, and the second guiding portion 214 is disposed between the trailing end of the first protrusion 211 and the leading end of the second protrusion 212. Along the rotation direction of the rotor body 200, the heights of the first guiding portion 213 and the second guiding portion 214 gradually decrease, so that the first guiding portion 213 is smoothly connected to the leading end of the first protrusion 211, and a first recessed structure is formed at the trailing end of the first guiding portion 213 and the second protrusion 212; the second guiding portion 214 is smoothly connected to the leading end of the second protrusion 212, and a second recessed structure is formed at the trailing end of the second guiding portion 214 and the first protrusion 211. The smooth connection design makes the contact between the first protrusion 211 and the second protrusion 212 and the first contact 111 more stable, reduces the impact and vibration on the first contact 111, and prolongs the service life of the first limit switch 110; and after the rotor body 200 rotates 90°, the first recessed structure and the second recessed structure can quickly bounce up the first contact 111, quickly disconnect the first circuit, and improve the response speed of the circuit switching.

[0049] Optionally, the second trigger structure further includes a third guiding portion 223 and a fourth guiding portion 224. Along the rotation direction of the rotor body 200, the third guiding portion 223 is disposed between the leading end of the third protrusion 221 and the trailing end of the fourth protrusion 222, and the fourth guiding portion 224 is disposed between the trailing end of the third protrusion 221 and the leading end of the fourth protrusion 222. Along the rotation direction of the rotor body 200, the heights of the third guiding portion 223 and the fourth guiding portion 224 gradually decrease, so that the third guiding portion 223 is smoothly connected to the leading end of the third protrusion 221, a third recessed structure is provided at the trailing end of the third guiding portion 223 and the fourth protrusion 222, the fourth guiding portion 224 is smoothly connected to the leading end of the fourth protrusion 222, and a fourth recessed structure is provided at the trailing end of the fourth guiding portion 224 and the third protrusion 221. The smooth connection design makes the contact between the third protrusion 221 and the fourth protrusion 222 and the second contact 121 more stable, reduces the impact and vibration on the second contact 121, and prolongs the service life of the second limit switch 120; and after the rotor body 200 rotates 90°, the third recessed structure and the fourth recessed structure can quickly bounce up the second contact 121, quickly disconnect the second circuit where the second limit switch 120 is located, and improve the response speed of the circuit switching.

[0050] Optionally, as Figure 6As shown, a first assembly groove 230 is provided at the first end of the rotor body 200. The first assembly groove 230 is used to coaxially fix the rotor body 200 to the output end of the driving member 500. Through the arrangement of the first assembly groove 230, the installation process of the rotor body 200 and the driving member 500 is simplified, making the installation more convenient and accurate. Specifically, in this embodiment, the driving member 500 is a motor, the first assembly groove 230 is a semi-circular groove, and the output shaft of the motor is provided with a semi-circular insertion portion, which is inserted into the semi-circular assembly groove, so that the rotor body 200 rotates synchronously with the output shaft of the motor.

[0051] In other embodiments, the first assembly groove 230 can be a quadrilateral groove or a pentagon groove, etc., and correspondingly, the output shaft of the motor is provided with a quadrilateral insertion portion or a pentagon insertion portion, etc.

[0052] Optionally, a second assembly groove is provided at the second end of the rotor body 200. The second assembly groove is used to coaxially fix the rotor body 200 to the valve stem of the on-off valve. Specifically, the second assembly groove is a waist-shaped groove, and the valve stem of the on-off valve is provided with a waist-shaped insertion portion, which is inserted into the waist-shaped groove. When the motor drives the rotor body 200 to rotate, the valve stem rotates synchronously with the output shaft of the motor through the rotor body 200. In other embodiments, the second assembly groove can be a quadrilateral groove or a pentagon groove, etc., and correspondingly, the valve stem is provided with a quadrilateral insertion portion or a pentagon insertion portion, etc.

[0053] Optionally, a limiting convex block is provided on the end face of the first end of the rotor body 200. The limiting convex block can prevent the first end of the rotor body 200 from fitting against the housing 300 of the motor, reducing the wear between the rotor body 200 and the motor housing 300.

[0054] Optionally, the actuator rotor further includes a housing 300. The rotor body 200 and the limit switch assembly 100 are arranged inside the housing 300, providing effective protection for the internal components of the actuator rotor and significantly improving the reliability and service life of the actuator rotor.

[0055] This embodiment also provides an actuator, including a limit switch assembly 100 and the above-mentioned actuator rotor. A contact protrudes from the limit switch assembly 100. The first trigger structure and the second trigger structure on the actuator rotor alternately press directly against the contact of the limit switch assembly 100. By optimizing the triggering method of the limit switch assembly 100, the loss of force during transmission is reduced, and the reliability of the actuator is improved.

[0056] Optionally, the limit switch assembly 100 is disposed beside the actuator rotor body 200. The limit switch assembly 100 includes a first limit switch 110 and a second limit switch 120 arranged in parallel along the axial direction of the rotor body 200. The second limit switch 120 is located above the first limit switch 110. The contacts include a first contact 111 and a second contact 121. The first contact 111 protrudes from the first limit switch 110, and the second contact 121 protrudes from the second limit switch 120. The first trigger structure can directly press the first contact 111, and the second trigger structure can directly press the second contact 121. Thus, during the assembly process, it is only necessary to ensure that when the rotor body 200 rotates, the first trigger structure and the second trigger structure can alternately press the first contact 111 and the second contact 121, without the need for repeated debugging, saving assembly and debugging time and improving the assembly efficiency.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. An actuator rotor, used to trigger a limit switch assembly (100), wherein the limit switch assembly (100) is provided with a contact protruding thereon; characterized in that: The actuator rotor comprises: A rotor body (200), wherein a first trigger structure and a second trigger structure are arranged on the rotor body (200) at intervals along the axial direction of the rotor body (200); The first trigger structure and the second trigger structure are arranged to form a full circle along the circumferential direction of the rotor body (200), and the first trigger structure and the second trigger structure are alternately pressed directly against the contact of the limit switch assembly (100).

2. The actuator rotor according to claim 1, characterized in that The first trigger structure comprises a first protrusion (211) and a second protrusion (212) which are arranged opposite to each other along the radial direction of the rotor body (200); the second trigger structure comprises a third protrusion (221) and a fourth protrusion (222) which are arranged opposite to each other along the radial direction of the rotor body (200); The first protrusion (211), the second protrusion (212), the third protrusion (221) and the fourth protrusion (222) form a full circle along the circumferential direction of the rotor body (200) and each occupies a quarter of a circular arc segment.

3. The actuator rotor according to claim 2, characterized in that The first trigger structure further comprises a first guide portion (213) and a second guide portion (214); along the rotation direction of the rotor body (200), the first guide portion (213) is arranged between the head end of the first protrusion (211) and the tail end of the second protrusion (212), and the second guide portion (214) is arranged between the tail end of the first protrusion (211) and the head end of the second protrusion (212); Along the rotation direction of the rotor body (200), the heights of the first guide portion (213) and the second guide portion (214) gradually decrease, and the first guide portion (213) is smoothly connected to the head end of the first protrusion (211), and a first recessed structure is formed at the tail end of the first guide portion (213) and the second protrusion (212); the second guide portion (214) is smoothly connected to the head end of the second protrusion (212), and a second recessed structure is formed at the tail end of the second guide portion (214) and the first protrusion (211).

4. The actuator rotor according to claim 2, characterized in that: The second trigger structure further comprises a third guide portion (223) and a fourth guide portion (224); along the rotation direction of the rotor body (200), the third guide portion (223) is arranged between the head end of the third protrusion (221) and the tail end of the fourth protrusion (222), and the fourth guide portion (224) is arranged between the tail end of the third protrusion (221) and the head end of the fourth protrusion (222); Along the rotation direction of the rotor body (200), the heights of the third guide portion (223) and the fourth guide portion (224) gradually decrease, and the third guide portion (223) is smoothly connected to the head end of the third protrusion (221), and a third recessed structure is provided at the tail end of the third guide portion (223) and the fourth protrusion (222), and the fourth guide portion (224) is smoothly connected to the head end of the fourth protrusion (222), and a fourth recessed structure is provided at the tail end of the fourth guide portion (224) and the third protrusion (221).

5. The actuator rotor according to claim 1, characterized in that: A first assembly groove (230) is provided at the first end of the rotor body (200), and the first assembly groove (230) is configured to coaxially fix the rotor body (200) and the output end of the driving member (500).

6. The actuator rotor according to claim 1, characterized in that A second assembly groove is provided at the second end of the rotor body (200), and the second assembly groove is configured to coaxially fix the rotor body (200) and the valve stem of the switch valve.

7. An actuator, characterized in that It comprises a limit switch assembly (100) and an actuator rotor as described in any one of claims 1 to 6, wherein a contact is protruding from the limit switch assembly (100), and a first trigger structure and a second trigger structure on the actuator rotor are alternately pressed directly with the contact of the limit switch assembly (100).

8. The actuator according to claim 7, characterized in that: The limit switch assembly (100) comprises a first limit switch (110) and a second limit switch (120) which are arranged in parallel, wherein the second limit switch (120) is located above the first limit switch (110), and the contacts comprise a first contact (111) and a second contact (121), wherein the first contact (111) is protruding from the first limit switch (110), and the second contact (121) is protruding from the second limit switch (120), and the first trigger structure can directly press the first contact (111), and the second trigger structure can directly press the second contact (121).

Images