阅读说明：本技术 手动复位多动力直驱型多回转快速切断执行装置 (Manual reset multi-power direct-drive type multi-rotation rapid cut-off execution device ) 是由 田中山 赖少川 杨昌群 王永飞 赵升吨 牛道东 张晨 赵飞 刘孟轩 于 2020-03-03 设计创作，主要内容包括：本发明属于电动执行机构技术领域,特别是涉及一种手动复位多动力直驱型多回转快速切断执行装置,包括主箱体,所述主箱体上设有动力机构、动力切换机构、传动系统、多回转输出机构；所述动力机构通过传动系统带动多回转输出机构实现行程输出；所述动力机构包括电力驱动系统和手轮操作系统；所述动力切换机构用于实现电力驱动系统和手轮操作系统之间的切换。本发明简化了电动执行器的结构、优化了电动执行器的使用过程、提升了系统可靠性、提高了电动执行器的工作效率、降低了电动执行器的能耗,并有助于实现可远程智能化控制,实时监测油气系统。(The invention belongs to the technical field of electric actuating mechanisms, and particularly relates to a manual reset multi-power direct-drive type multi-rotation quick cut-off actuating device which comprises a main box body, wherein a power mechanism, a power switching mechanism, a transmission system and a multi-rotation output mechanism are arranged on the main box body; the power mechanism drives the multi-rotation output mechanism to realize stroke output through the transmission system; the power mechanism comprises an electric drive system and a hand wheel operating system; the power switching mechanism is used for realizing switching between the electric drive system and the hand wheel operation system. The invention simplifies the structure of the electric actuator, optimizes the use process of the electric actuator, improves the reliability of the system, improves the working efficiency of the electric actuator, reduces the energy consumption of the electric actuator, and is beneficial to realizing remote intelligent control and monitoring an oil-gas system in real time.)

1. The utility model provides a manual many powers that reset directly drive type many gyration and cut off final controlling element fast which characterized in that:

comprises a main box body (1),

the main box body (1) is provided with a power mechanism, a power switching mechanism, a transmission system and a multi-rotation output mechanism (7);

the power mechanism drives the multi-rotation output mechanism (7) to realize stroke output through a transmission system;

the power mechanism comprises an electric drive system and a hand wheel operating system (6);

the power switching mechanism is used for switching between an electric drive system and a hand wheel operation system (6).

2. The manual reset multi-power direct-drive type multi-rotation rapid cut-off executing device as claimed in claim 1, wherein:

the electric drive system comprises a first servo motor (2) and a second servo motor (3) which are symmetrically distributed on two sides of a main box body (1).

3. The manual reset multi-power direct-drive type multi-rotation rapid cut-off executing device as claimed in claim 2, wherein:

the power switching mechanism comprises a sliding sleeve (22), a shifting fork (38) is installed on the outer side of the sliding sleeve (22), and the shifting fork (38) is controlled through a shifting fork operating rod (39).

4. The manual reset multi-power direct-drive type multi-rotation rapid cut-off executing device as claimed in claim 3, wherein:

the transmission system comprises a motor worm shaft (8), and two ends of the motor worm shaft (8) are respectively connected with power output ends of the first servo motor (2) and the second servo motor (3);

the motor worm shaft (8) transmits power to the transmission worm wheel (20) through a worm gear mechanism, and the transmission worm wheel (20) is sleeved on the output worm shaft (21) in an empty way;

one side of the transmission worm wheel (20) is connected with the sliding sleeve (22) through a tooth groove, and the other side of the transmission worm wheel is axially positioned on the output worm shaft (21) through a fifth round nut (27);

the inside of the sliding sleeve (22) is connected with the output worm shaft (21) through a sliding spline and can move on the output worm shaft (21) in the axial direction.

5. The manual reset multi-power direct-drive type multi-rotation rapid cut-off executing device as claimed in claim 4, wherein:

the transmission system also comprises a hand wheel transmission sleeve (23), the hand wheel transmission sleeve (23) is sleeved on the output worm shaft (21) in an empty mode, and the hand wheel transmission sleeve (23) can be connected with the sliding sleeve (22) through a tooth groove to transmit torque.

6. The manual reset multi-power direct-drive type multi-rotation rapid cut-off executing device as claimed in claim 5, wherein:

first servo motor (2) are installed on main tank body (1) through first servo motor mount pad (9), inside first servo motor (2), install on first servo motor casing (11) first servo motor stator (10), first servo motor rotor (12) are fixed on motor shaft (8) through first round nut (13), second round nut (14), first servo motor rotor (12) surface subsides have first servo motor permanent magnet group (15), there is first electromagnetism band-type brake device (16) between first servo motor rotor (12) and first servo motor mount pad (9), motor shaft (8) support on first servo motor casing (11) through first bearing (17), support on first servo motor mount pad (9) through second bearing (18).

7. The manual reset multi-power direct-drive type multi-rotation rapid cut-off executing device as claimed in claim 6, wherein:

the hand wheel operating system (6) comprises a hand wheel (26), and the hand wheel (26) is installed on one side of the hand wheel transmission sleeve (23).

8. The manual reset multi-power direct-drive type multi-rotation rapid cut-off executing device as claimed in claim 7, wherein:

the multi-rotation output mechanism (7) comprises an output worm (31), the output worm (31) is coaxially connected with an output worm shaft (21), the output worm (31) is matched with an output worm wheel (35), the output worm wheel (35) is fixed on an output shaft (36), and the output shaft (36) is installed on an output worm wheel and worm box body (29).

Technical Field

The invention belongs to the technical field of electric actuating mechanisms, and particularly relates to a manual reset multi-power direct-drive type multi-rotation quick cut-off actuating device.

Background

With the rapid development of pipeline construction in China, the necessity of realizing the localization of key equipment of oil and gas pipelines is increasingly urgent. The localization of key equipment of the oil and gas pipeline is not only a national requirement, but also a requirement for reducing construction and operation costs of oil and gas transportation enterprises, and the localization of the key equipment of the oil and gas pipeline has important significance for reducing engineering cost, breaking monopoly and price barriers of foreign products, developing national industries and promoting the improvement of equipment levels of the oil and gas pipeline. In recent years, with the increasing safety requirements in the process of automation control, the safety requirements of large-diameter valves in petroleum and petrochemical systems are urgent. The electric actuator is used as a terminal actuating mechanism of the large-caliber valve control system, a power source of the electric actuator is from an electric power system, and when the electric power system is powered off due to accidents or other reasons, the electric actuator cannot adjust the valve to a safety demand position, so that casualties and property loss are caused.

The large-torque quick turn-off device used in the current market is mainly a pneumatic actuator, an electro-hydraulic actuator and the like. Both are automatically actuated to a fully open or fully closed position in the event of a power failure by charging the non-power system.

The execution device has the following defects that ① electro-hydraulic actuators need a matched hydraulic system, are large in size, difficult to maintain and expensive, ② pneumatic actuators have complex air path laying work and have the risk of air leakage, ③ causes the electro-hydraulic and pneumatic systems to be prone to failure and low in stability under extreme conditions, and ④ uses nuts as stroke output ends, so that the processing requirements on the nuts are increased.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a manual reset multi-power direct-drive multi-rotation quick cut-off executing device, which applies the ideas of 'dispersed multi-power' and 'manual reset' to the design process of the traditional electric actuator, thereby simplifying the structure of the electric actuator, optimizing the use process of the electric actuator, improving the reliability of the system, improving the working efficiency of the electric actuator, reducing the energy consumption of the electric actuator, being beneficial to realizing the remote intelligent control and monitoring an oil-gas system in real time.

The technical scheme for solving the problems is as follows: a manual reset multi-power direct-drive type multi-rotation quick cut-off executing device is characterized in that:

comprises a main box body and a plurality of main box bodies,

the main box body is provided with a power mechanism, a power switching mechanism, a transmission system and a multi-rotation output mechanism;

the power mechanism drives the multi-rotation output mechanism to realize stroke output through the transmission system;

the power mechanism comprises an electric drive system and a hand wheel operating system;

the power switching mechanism is used for realizing switching between the electric drive system and the hand wheel operation system.

Preferably, the electric drive system includes a first servo motor and a second servo motor symmetrically distributed on both sides of the main casing.

Preferably, the power switching mechanism comprises a sliding sleeve, a shifting fork is mounted on the outer side of the sliding sleeve, and the shifting fork is controlled by a shifting fork operating lever.

Preferably, the transmission system comprises a motor worm shaft, and two ends of the motor worm shaft are respectively connected with power output ends of the first servo motor and the second servo motor;

the motor worm shaft transmits power to the transmission worm wheel through the worm gear mechanism, and the transmission worm wheel is sleeved on the output worm shaft in an empty mode;

one side of the transmission worm wheel is connected with the sliding sleeve through a tooth groove, and the other side of the transmission worm wheel is axially positioned on the output worm shaft through a fifth round nut;

the sliding sleeve is connected with the output worm shaft through a sliding spline and can axially move on the output worm shaft.

Preferably, the transmission system further comprises a hand wheel transmission sleeve, the hand wheel transmission sleeve is sleeved on the output worm shaft in an empty mode, and the hand wheel transmission sleeve can be engaged with the sliding sleeve through the tooth grooves to transmit torque.

Preferably, the first servo motor is installed on the main box body through a first servo motor installation seat, in the first servo motor, a first servo motor stator is installed on a first servo motor shell, a first servo motor rotor is fixed on a motor worm shaft through a first round nut and a second round nut, a first servo motor permanent magnet group is attached to the outer surface of the first servo motor rotor, a first electromagnetic band-type brake device is arranged between the first servo motor rotor and the first servo motor installation seat, the motor worm shaft is supported on the first servo motor shell through a first bearing, and is supported on the first servo motor installation seat through a second bearing.

Preferably, the handwheel operating system comprises a handwheel, and the handwheel is arranged on one side of a handwheel transmission sleeve.

Preferably, the multi-turn output mechanism comprises an output worm, the output worm is coaxially connected with an output worm shaft, the output worm is matched with an output worm wheel, the output worm wheel is fixed on an output shaft, and the output shaft is mounted on an output worm wheel and worm box.

The invention has the advantages that:

(1) the invention applies the idea of 'dispersing multi-power' to a manual reset multi-power direct-drive type multi-rotation quick cut-off executing device, firstly, two servo direct-drive motors with the same rotor are adopted for driving, so that the unbalanced stress caused by the traditional single motor can be avoided; secondly, when one servo motor fails, the other servo motor is allowed to run in an overload mode for a short time, normal operation of an oil-gas system is guaranteed, and time is won for maintenance; finally, two coaxial motors are adopted, so that the actuator is driven more efficiently and economically;

(2) the invention applies the idea of 'servo electric direct drive' to a manual reset multi-power direct drive type multi-rotation quick cutting execution device, combines the stator shafts of two servo motors and the worm shaft for transmission into a whole, saves the traditional coupling system and ensures that the structure of the actuator is simple and compact;

(3) the invention designs an actuating mechanism capable of being manually reset, when an electric power system is powered off due to an accident or other reasons under the condition that a valve connected with the mechanism is opened, an electromagnetic valve is powered off and braked, a servo motor is in no power output, automatic and manual control switching can be realized through a shifting fork device, a hand wheel is reversely rotated, the valve is closed, and casualties and property loss are avoided.

Drawings

FIG. 1 is an overall view of the present invention;

FIG. 2 is a cross-sectional view of motor worm gear shaft 1/4 of the present invention;

FIG. 3 is a detailed view of the servo motor of the present invention;

FIG. 4 is a cross-sectional view of the handwheel operating system 1/4 of the present invention;

fig. 5 is a diagram of the manual-electric switching system of the present invention.

Wherein: 1. a main box body, 2, a first servo motor, 3, a second servo motor, 4, a main box body cover, 5, an electric system control box, 6, a hand wheel operation system, 7, a multi-rotation output mechanism, 8, a motor worm shaft, 9, a first servo motor mounting seat, 10, a first servo motor stator, 11, a first servo motor shell, 12, a first servo motor rotor, 13, a first round nut, 14, a second round nut, 15, a first servo motor permanent magnet group, 16, a first electromagnetic band-type brake device, 17, a first bearing, 18, a second bearing, 19, a first blank cover, 20, a transmission worm wheel, 21, an output worm shaft, 22, a sliding sleeve, 23, a hand wheel transmission sleeve, 24, a fifth bearing, 25, a first transparent cover, 26, a hand wheel, 27, a fifth round nut, 28, a sixth bearing, 29, a second transparent cover, 30, an output worm wheel box body, 31, a second servo motor, The output worm gear box comprises an output worm 32, a sixth round nut 33, a seventh bearing 34, a fourth blank cover 35, an output worm gear 36, an output shaft 37, an output worm gear box cover 38, a shifting fork 39 and a shifting fork operating lever.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

A manual reset multi-power direct-drive type multi-rotation rapid cut-off execution device is shown in figure 1 and comprises a main box body 1, wherein a first servo motor 2 and a second servo motor 3 which are identical in structure and symmetrically distributed are arranged on two sides of the main box body respectively, a main box body cover 4 is arranged on the top of the main box body 1, an electric system control box 5 is arranged on the main box body cover 4, and a hand wheel operation system 6 and a multi-rotation output mechanism 7 are arranged on the other two sides of the main box body cover.

As shown in fig. 2, a motor worm shaft 8 is installed inside the main housing 1, and a first servo motor 2 and a second servo motor 3 are respectively installed at two ends of the motor worm shaft 8.

As shown in fig. 3, the first servo motor 2 is mounted on the main housing 1 through a first servo motor mounting seat 9, a first servo motor stator 10 is mounted on a first servo motor housing 11 inside the first servo motor 2, a first servo motor rotor 12 is fixed on the motor worm shaft 8 through a first round nut 13 and a second round nut 14, a first servo motor permanent magnet group 15 is attached to the outer surface of the first servo motor rotor 12, a first electromagnetic band-type brake device 16 is arranged between the first servo motor rotor 12 and the first servo motor mounting seat 9, the motor worm shaft 8 is supported on the first servo motor housing 11 through a first bearing 17, and is supported on the first servo motor mounting seat 9 through a second bearing 18, and a first cover 19 is mounted on the outer side of the first servo motor housing 11. The second servo motor 3 and the first servo motor 2 are symmetrically distributed in the same structure.

As shown in fig. 4 and 5, a driving worm wheel 20 for transmitting power with a motor worm shaft 8 through a worm and gear mechanism is arranged in the hand wheel operating system 6, the driving worm wheel 20 is freely sleeved on an output worm shaft 21, the left side of the driving worm wheel is engaged with a sliding sleeve 22 through a tooth groove, the sliding sleeve 22 is internally connected with the output worm shaft 21 through a sliding spline and can axially move on the output worm shaft 21, a hand wheel transmission sleeve 23 is arranged on the other side of the sliding sleeve 22, the hand wheel transmission sleeve 23 is freely sleeved on the output worm shaft 21 and is supported on the main box body 1 through a fifth bearing 24, the other side of the fifth bearing 24 is fixed on the main box body 1 through a first transparent cover 25, and a hand wheel 26 is arranged on the other side of the hand wheel transmission sleeve 23; the other side of the transmission worm wheel 20 is provided with a fifth round nut 27, the other side of the output worm shaft 21 is supported on the main case 1 through a sixth bearing 28, the other side of the sixth bearing 28 is provided with a second transparent cover 29, and the second transparent cover 29 is installed on the main case 1 through an output worm wheel and worm case 30.

An output worm 31 positioned on an output worm shaft 21 is installed in the multi-turn output mechanism 7, the output worm 31 is axially fixed through a sixth round nut 32, a seventh bearing 33 is used for supporting, a fourth blank cover 34 is used for packaging, an output worm wheel 35 is arranged in an output worm gear box 29, the output worm wheel 35 is fixed on an output shaft 36, the output shaft 36 is installed on the output worm gear box 29, and an output worm gear box cover 37 is arranged on the output worm gear box 30. A shifting fork 38 is arranged outside the sliding sleeve 22, the shifting fork 38 is controlled by a shifting fork operating rod 39, and the shifting fork operating rod 39 is arranged on the main box body 1.

The working principle of the invention is as follows:

(1) the invention adopts the specific principle of multi-rotation quick cut-off electric execution of the dispersed multi-power servo direct drive control, which is as follows:

pushing the shifting fork 38 to the transmission worm wheel 20 to enable the sliding sleeve 22 and the transmission worm wheel 20 to be connected through a tooth groove on the sliding sleeve and transmit rotary motion; when the first servo motor 2 and the second servo motor 3 are electrified, the first servo motor rotor 12 drives the motor worm shaft 8 to rotate, so as to drive the transmission worm wheel 20 to rotate, then the sliding sleeve 22 transmits power to the output worm shaft 21 through a spline, and the output worm wheel 35 is driven to perform multi-rotation output through the rotation of the output worm 31; when the valve is normally opened, the first electromagnetic band-type brake device 16 enables the system to be quickly stopped, and the accuracy of a valve station is guaranteed. The second servomotor 3 moves internally as the first servomotor 2.

(2) The specific principle of the manual reset of the invention is as follows:

when a valve connected with the mechanism is opened, if an electric power system is powered off due to an accident or other reasons, the first electromagnetic band-type brake device 16 enables the first servo motor 2 to be locked, and the second servo motor is the same; at the moment, the shifting fork 38 can be pushed to the end of the hand wheel 26, so that the sliding sleeve 22 is connected with the hand wheel 26 through the hand wheel transmission sleeve 23 to transmit power; then the hand wheel 26 is rotated reversely, the power is transmitted to the output worm 31 through the same path by the sliding sleeve 22, so that the output worm wheel 36 is reversely rotated, the valve is closed, and casualties and property loss are avoided.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent flow transformations made by the present specification and drawings, or applied directly or indirectly to other related systems, are included in the scope of the present invention.