Power-off reset type electric actuator structure

Abstract

The utility model discloses a power-off reset type electric actuator structure which comprises an actuator body assembled on a valve and further comprises an installation mechanism used for meeting the installation requirement of an electric actuator, an actuating mechanism with a power-off reset function and a protection mechanism used for forming a buffer type protection structure. The installation mechanism is arranged on the lower portion of the actuator body, the actuating mechanism is arranged on the side portion of the actuator body, and the protection mechanism is assembled on one side of the actuator body corresponding to the actuating mechanism. The execution mechanism is arranged, a lithium battery is adopted as a standby power supply, automatic reset can be achieved during power failure, the use safety is high, the protection mechanism is arranged and matched with the buffering assembly to conduct buffering type protection on the standby power supply, and the situation that the standby power supply is damaged when subjected to external impact, and consequently an actuator is scrapped is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric actuator technical field especially is related to a power-off reset type electric actuator structure. BACKGROUND

[0002] In the prior art, the electric actuator can provide a driving device for linear or rotary motion, which works under the action of a certain driving energy and a certain control signal, and is used for controlling a valve rotating by 0-300 degrees and other similar products, such as a butterfly valve, a ball valve, a damper, a plug valve, and a louver valve. It uses AC 24V, 110V, 220V, 380V, 415V alternating current power supply and DC 12V, 24V, 220V direct current power supply as the driving power supply. In addition, the actuator can be self-powered, and uses 4-20mA current signal or 0-10VDC voltage signal as the control signal. The valve can be moved to the required position to realize automatic control, and can be widely applied to the fields of petroleum, chemical industry, electric power, metallurgy, pharmacy, papermaking, energy, water treatment, shipbuilding, textile, food processing, and building automation. The existing electric actuator is not convenient to overhaul, and the installation structure is relatively complex, which makes the overhaul and disassembly of the electric actuator by the staff more complex, time-consuming and laborious. Therefore, the efficiency of maintenance cannot be guaranteed, and there is a certain limitation in maintenance. Once a power failure occurs during system operation, the electric actuator can only maintain the action opening degree before the power failure, and cannot control the opening degree properly, which may cause accidents in the control site. In addition, it lacks a protective structure, and is easy to be damaged when colliding during use.

[0003] The utility model discloses a power-off reset type electric actuator, including electric actuator main part, condenser, standby power supply and circuit switcher, the one side of electric actuator main part is provided with the overhaul cover, the other side of electric motor actuator main part is provided with the pressure disc, the overhaul cover is connected with electric actuator main part through the connection screw of no. SUMMARY

[0004] The utility model discloses a power-off reset type electric actuator structure.

[0005] To achieve the above object, the technical scheme of the utility model is:

[0006] A power-off reset type electric actuator structure, including actuator body, the actuator body is assembled on the valve, still include the installation mechanism for satisfying the installation demand of electric actuator, the actuating mechanism with power-off reset function and the protection mechanism for constituting buffer type protection structure, installation mechanism is arranged in the lower part of actuator body, actuating mechanism is arranged in the side of actuator body, protection mechanism is assembled in one side of actuator body corresponding actuating mechanism.

[0007] Installation mechanism includes installation base and support base, the installation base is set in the lower part of actuator body and is fixedly connected with actuator body, the support base is set in the bottom of installation base and is fixedly connected with installation base by bolt, the actuator body is assembled on the valve through installation base and support base.

[0008] The support base is set as a meander base structure and has an installation through hole in the middle part corresponding to the valve rod of the valve.

[0009] Actuating mechanism includes execution motor, control hand wheel and standby power supply, the execution motor is set in one end of actuator body and is fixedly connected with actuator body, the control hand wheel is set in one end of actuator body away from execution motor and is rotatably connected with actuator body, the execution motor and control hand wheel are drivingly connected with the output end of actuator body through planetary gear transmission structure, the standby power supply is set in one side of actuator body and is fixedly connected with actuator body by screw.

[0010] The standby power supply adopts lithium battery structure, and the execution motor, the external power supply and the standby power supply are electrically connected.

[0011] Protection mechanism includes mounting clamp, protection baffle and buffer assembly, the mounting clamp is set in one end of actuator body close to execution motor and is fixedly connected with actuator body, the protection baffle is set in one side of mounting clamp and is fixedly connected with mounting clamp, the protection baffle is arranged corresponding to the standby power supply, and the buffer assembly is arranged on the inner side of the protection baffle corresponding to the standby power supply.

[0012] The buffer assembly comprises buffer base blocks, buffer springs and a buffer top column, the buffer base blocks are provided in two groups, the two groups of buffer base blocks are arranged in parallel and are spaced apart, one group of the buffer base blocks is fixedly connected with the protective baffle, the opposite sides of the two groups of buffer base blocks are provided with buffer grooves, the buffer springs are arranged between the two groups of buffer base blocks and the two ends of the buffer springs are fixedly connected with the two groups of buffer base blocks respectively, the end of the buffer spring is located in the buffer groove, and the buffer top column is arranged between the two groups of buffer base blocks and one end of the buffer top column is fixedly connected with one group of the buffer base blocks, and the buffer top column is located on the inner side of the buffer spring.

[0013] The buffer assembly is provided in two groups, the two groups of buffer assemblies are arranged in parallel and are spaced apart on the side of the protective baffle close to the standby power supply, and a space is left between the buffer assembly and the standby power supply.

[0014] The protective baffle is provided in an L-shaped baffle structure and cooperates with the mounting clamp to form a semi-enclosed protective structure.

[0015] The switching switch is arranged on the side of the actuator body away from the standby power supply.

[0016] The actuator body has the advantages that:

[0017] The mounting mechanism is provided, the actuator is provided with mounting support through the meandering base, the mounting structure is simple and stable, and the actuator is convenient to overhaul and disassemble, the actuating mechanism is provided, a lithium battery is used as the standby power supply, the actuator can be automatically reset when power failure occurs, the safety in use is high, the protective mechanism is provided, and the standby power supply is protected in a buffer mode in cooperation with the buffer assembly, so that damage of the standby power supply caused by external impact is avoided, and the actuator is prevented from being scrapped as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the mounting mechanism and the actuator body of the utility model;

[0020] Figure 3 It is a schematic diagram of the actuating mechanism and the actuator body of the utility model;

[0021] Figure 4 It is a sectional view of the buffer assembly of the utility model.

[0022] In the drawing: 1, actuator body; 2, mounting base; 3, supporting base; 4, actuating motor; 5, control hand wheel; 6, standby power supply; 7, mounting clamp; 8, protective baffle; 9, buffer base block; 10, buffer spring; 11, buffer top column; 12, switching switch. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below with reference to the drawings,

[0024] A power-off reset type electric actuator structure, including actuator body 1, actuator body 1 is assembled on the valve, still include the installation mechanism for satisfying the installation demand of electric actuator, the actuating mechanism with power-off reset function and the protection mechanism for constituting the buffer type protection structure, installation mechanism is arranged in the lower part of actuator body 1, actuating mechanism is arranged in the side of actuator body 1, and protection mechanism is assembled in the side of actuator body 1 corresponding actuating mechanism, and the overall structure schematic diagram of the utility model is as Figure 1 Shown.

[0025] Installation mechanism includes installation base 2 and support base 3, installation base 2 is set in the lower part of actuator body 1 and is fixedly connected with actuator body 1, support base 3 is set in the bottom of installation base 2 and is fixedly connected with installation base 2 by bolt, actuator body 1 is assembled on the valve through installation base 2 and support base 3, support base 3 is set as the back-shaped base structure and is provided with installation through-hole in the middle part corresponding valve stem, and installation mechanism is matched through installation base 2 and support base 3, and constitutes the installation structure between actuator and valve, to provide stable installation support for actuator body 1, wherein, installation base 2 is used as the installation structure of the bottom of actuator body 1, and support base 3 is used to constitute the back-shaped base structure with installation base 2 to install the actuator on the valve, to provide stable installation support for actuator body 1, and the installation mechanism and actuator body 1 of the utility model are matched as Figure 2 Shown.

[0026] The executing mechanism comprises an executing motor 4, a control hand wheel 5 and a backup power supply 6, the executing motor 4 is arranged at one end of the actuator body 1 and fixedly connected with the actuator body 1, the control hand wheel 5 is arranged at the end of the actuator body 1 away from the executing motor 4 and rotatably connected with the actuator body 1, the executing motor 4 and the control hand wheel 5 are drivingly connected with the output end of the actuator body 1 through a planetary gear transmission structure, the backup power supply 6 is arranged at one side of the actuator body 1 and fixedly connected with the actuator body 1 through screws, the backup power supply 6 adopts a lithium battery structure, the executing motor 4 is electrically connected with an external power supply and the backup power supply 6, and the executing mechanism cooperates with the executing motor 4, the control hand wheel 5 and the backup power supply 6 to form a power-off reset type electric actuator for controlling the on-off state of a valve, wherein the executing motor 4 is used to drive the output end of the actuator body 1 to act through the planetary gear transmission structure, and then drive the valve rod of the valve to act to control the on-off state of the valve, realize the electric control of the actuator, the control hand wheel 5 is used to manually control the actuator, and the backup power supply 6 is used to supply power for the executing motor 4 when the external power supply is powered off, so as to form a power-off reset type electric actuator together with the executing motor 4 and the actuator body 1, and the executing mechanism cooperates with the actuator body 1 as shown in the schematic diagram of the utility model Figure 3 .

[0027] The protecting mechanism comprises a mounting clamp 7, a protecting baffle 8 and a buffer assembly, the mounting clamp 7 is arranged at one end of the actuator body 1 close to the executing motor 4 and fixedly connected with the actuator body 1, the protecting baffle 8 is arranged at one side of the mounting clamp 7 and fixedly connected with the mounting clamp 7, the protecting baffle 8 is arranged corresponding to the backup power supply 6, and the buffer assembly is arranged at the inner side of the protecting baffle 8 corresponding to the backup power supply 6, the protecting baffle 8 is arranged as an L-shaped baffle structure and forms a half-enclosed protecting structure together with the mounting clamp 7, and the protecting mechanism cooperates with the mounting clamp 7, the protecting baffle 8 and the buffer assembly to form a buffer type protecting structure for buffering and protecting the backup power supply 6, wherein the mounting clamp 7 is used to detachably mount the protecting baffle 8 on the actuator body 1, the protecting baffle 8 is used to protect the backup power supply 6, and the buffer assembly is used to provide elastic support for the protecting baffle 8 when the protecting baffle 8 is impacted, so as to avoid damage to the backup power supply 6 caused by the impact.

[0028] The buffer assembly comprises a buffer base block 9, a buffer spring 10 and a buffer top column 11, the buffer base block 9 is provided in two groups, the two groups of buffer base blocks 9 are arranged side by side and are spaced apart, and one of the two groups of buffer base blocks 9 is fixedly connected with the protective baffle 8, the opposite side of the two groups of buffer base blocks 9 is provided with a buffer groove, the buffer spring 10 is arranged between the two groups of buffer base blocks 9, and the two ends of the buffer spring 10 are fixedly connected with the two groups of buffer base blocks 9 respectively, the end of the buffer spring 10 is located in the buffer groove, the buffer top column 11 is arranged between the two groups of buffer base blocks 9, and one end of the buffer top column 11 is fixedly connected with one of the two groups of buffer base blocks 9, and the buffer top column 11 is located on the inner side of the buffer spring 10, the buffer assembly is provided in two groups, the two groups of buffer assemblies are arranged side by side and are spaced apart on the side of the protective baffle 8 close to the standby power supply 6, and a spacing is left between the buffer assembly and the standby power supply 6, the buffer assembly is matched by the buffer base block 9, the buffer spring 10 and the buffer top column 11 to form an elastic support structure on the inner side of the protective baffle 8, wherein the buffer base block 9 is used for providing mounting support for the buffer spring 10 and forming an elastic support structure together with the buffer spring 10, the buffer spring 10 is used for elastically connecting the two groups of buffer base blocks 9, and the buffer top column 11 is used as a support structure between the two groups of buffer base blocks 9, so as to limit the buffer base block 9 and avoid the buffer spring 10 from being stuck, and the support property of the buffer mechanism can be effectively improved, and the buffer assembly sectional view is as shown in Figure 4

[0029] The utility model still includes switch switch 12, switch switch 12 sets up in the executor body 1 far away from the standby power supply 6's one side, wherein, switch switch 12 is used for switching the work mode of executor, namely switches manual mode or electric mode.

[0030] Wherein, the output end of the executor body 1 and the assembly mode of valve stem, the transmission mode of execution motor 4 and switch hand wheel through planetary gear transmission structure and the output end of the executor body 1, the principle of switch switch 12 switching executor control mode are all the common knowledge in the art, so no longer repeat.

[0031] Working principle:

[0032] When using, through installing base 2 and support base 3, the executor body 1 is installed on the valve, the output end of the executor is assembled and connected with the valve stem of the valve, and the protective baffle 8 is assembled on the outer side of the standby power supply 6 through the mounting clamp 7, in the working process, when the external power is powered off, the standby power supply 6 supplies power for the execution motor 4 to meet the power-off reset requirement of the electric executor, when being impacted by the outside world, the half-enclosed protective structure formed by the protective baffle 8 and the mounting clamp 7 can effectively offset the external impact, if the external impact is too large, the buffer assembly can provide elastic support for the protective baffle 8, so as to reduce the impact suffered by the standby power supply 6 and avoid the damage of the standby power supply 6.

[0033] ​The utility model discloses beneficial effect is equipped with installation mechanism, provides installation support for executor through the back -shaped base, and installation structure is simple and stable, and it is convenient to overhaul dismounting, is equipped with the executing mechanism, adopts lithium cell as the standby power supply, can be automatic reset when power failure, and the use safety is strong, is equipped with the protection mechanism, and the buffer component is shielded to the standby power supply and is shielded, avoids the standby power supply and appears the damage when suffering the outside impact, and causes the overall scrapping of executor.

[0034] The above embodiment of the utility model has been described in detail, but the content is only the preferred embodiment of the utility model, and cannot be considered for limiting the implementation scope of the utility model. Any equivalent change and improvement made according to the application scope of the utility model should still belong to the patent coverage scope of the utility model.

Claims

1. A de-energized reset electric actuator structure comprising an actuator body (1) which is assembled on a valve, characterized in that, The installation mechanism is arranged at the lower part of the actuator body (1), the actuating mechanism is arranged at the side of the actuator body (1), and the protection mechanism is arranged at the side of the actuator body (1) corresponding to the actuating mechanism.

2. An electrically operated actuator according to claim 1, wherein the power supply is a battery. The installation mechanism comprises an installation base (2) and a supporting base (3), the installation base (2) is arranged at the lower part of the actuator body (1) and fixedly connected with the actuator body (1), and the supporting base (3) is arranged at the bottom of the installation base (2) and fixedly connected with the installation base (2) through bolts, and the actuator body (1) is assembled on the valve through the installation base (2) and the supporting base (3).

3. An electrically powered actuator structure of the power-off reset type as defined in claim 2, wherein The supporting base (3) is arranged in a meandering base structure and has an installation through hole in the middle corresponding to the valve rod of the valve.

4. An electrically powered actuator structure of the power down reset type as defined in claim 3, wherein, The actuating mechanism comprises an actuating motor (4), a control hand wheel (5) and a backup power supply (6), the actuating motor (4) is arranged at one end of the actuator body (1) and fixedly connected with the actuator body (1), the control hand wheel (5) is arranged at the end of the actuator body (1) away from the actuating motor (4) and rotatably connected with the actuator body (1), the actuating motor (4) and the control hand wheel (5) are drivingly connected with the output end of the actuator body (1) through a planetary gear transmission structure, and the backup power supply (6) is arranged at one side of the actuator body (1) and fixedly connected with the actuator body (1) through screws.

5. An electrically powered actuator structure of the power down reset type as defined in claim 4, wherein, The backup power supply (6) adopts a lithium battery structure, and the actuating motor (4) is electrically connected with an external power supply and the backup power supply (6).

6. An electrically powered actuator structure of the power down reset type as defined in claim 5, wherein, The protection mechanism comprises an installation clamp (7), a protection baffle (8) and a buffer assembly, the installation clamp (7) is arranged at one end of the actuator body (1) close to the actuating motor (4) and fixedly connected with the actuator body (1), the protection baffle (8) is arranged at one side of the installation clamp (7) and fixedly connected with the installation clamp (7), the protection baffle (8) is arranged corresponding to the backup power supply (6), and the buffer assembly is arranged on the inner side of the protection baffle (8) corresponding to the backup power supply (6).

7. An electrically powered actuator structure of the power down reset type as defined in claim 6, wherein, The buffer assembly comprises buffer base blocks (9), buffer springs (10) and buffer top posts (11), two groups of the buffer base blocks (9) are arranged in parallel and are spaced apart, one group of the buffer base blocks (9) is fixedly connected with the protective baffle (8), the opposite sides of the two groups of the buffer base blocks (9) are provided with buffer grooves, the buffer springs (10) are arranged between the two groups of the buffer base blocks (9) and the two ends of the buffer springs (10) are fixedly connected with the two groups of the buffer base blocks (9), the end of the buffer spring (10) is located in the buffer groove, the buffer top post (11) is arranged between the two groups of the buffer base blocks (9) and one end of the buffer top post (11) is fixedly connected with one group of the buffer base blocks (9), and the buffer top post (11) is located on the inner side of the buffer spring (10).

8. An electrically powered actuator structure of the power down reset type as defined in claim 7, wherein, The buffer assembly is provided in two groups, the two groups of buffer assemblies are arranged in parallel and are spaced apart on the side of the protective baffle (8) close to the standby power supply (6), and a space is left between the buffer assembly and the standby power supply (6).

9. An electrically powered actuator structure of the power down reset type as defined in claim 8, wherein, The protective baffle (8) is provided in an L-shaped baffle structure and cooperates with the mounting clamp (7) to form a semi-enclosed protective structure.

10. An electrically powered actuator structure of the power down reset type as defined in claim 9, wherein, A switch (12) is further included, which is arranged on the side of the actuator body (1) away from the standby power supply (6).

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