阅读说明：本技术 一种死区可调的直行程电动执行器 (Dead zone adjustable straight stroke electric actuator ) 是由 吴文涛 于 2021-09-18 设计创作，主要内容包括：本发明提供一种死区可调的直行程电动执行器。所述死区可调的直行程电动执行器包括安装箱、执行组件、连接组件、手动离合器、驱动组件、限位组件、制动组件、转动组件和控制组件。本发明中的死区可根据实际情况进行调节,通过设置制动组件,在不驱动直行程电动执行器运行时,通过气缸控制制动块下降并使齿槽卡住制动齿轮时,可对支撑轴进行制动,从而对驱动轴进行制动,防止阀门内部的阀件在受到较大阻力时会反带动驱动轴转动,提高了装置的使用稳定性和装置的使用寿命,本发明中的驱动轴还可通过手动转盘进行驱动,使用较为灵活；装置中的各个部件均可拆卸连接于安装箱上,方便直行程电动执行器上安装的各种部件进行检修更换。(The invention provides a straight-stroke electric actuator with an adjustable dead zone. The dead zone adjustable straight-stroke electric actuator comprises an installation box, an execution assembly, a connecting assembly, a manual clutch, a driving assembly, a limiting assembly, a braking assembly, a rotating assembly and a control assembly. The dead zone in the invention can be adjusted according to actual conditions, and by arranging the brake assembly, when the linear-stroke electric actuator is not driven to run, the brake block is controlled by the air cylinder to descend and the tooth grooves clamp the brake gear, the support shaft can be braked, so that the drive shaft is braked, a valve piece in the valve is prevented from reversely driving the drive shaft to rotate when being subjected to larger resistance, the use stability of the device is improved, the service life of the device is prolonged, the drive shaft can also be driven by a manual turntable, and the use is more flexible; all parts in the device can be detachably connected to the installation box, so that various parts installed on the straight-stroke electric actuator can be conveniently overhauled and replaced.)

1. A dead-zone adjustable linear electric actuator, comprising:

an installation case (1);

the actuating component (2) is used for controlling the opening and closing of the valve, and the actuating component (2) is arranged in the installation box (1);

the connecting component (3) is used for installing the connecting component (3) for connecting the execution component (2) and the valve at the bottom of the installation box (1);

the driving assembly (5) is used for driving the executing assembly (2) to operate, and the driving assembly (5) is arranged on the installation box (1);

the manual clutch (4) is used for connecting the driving assembly (5) and the executing assembly (2), and the manual clutch (4) is arranged on the installation box (1);

the limiting assembly (6) is used for limiting the driving assembly (5), and the limiting assembly (6) is arranged in the driving assembly (5);

the brake assembly (7) is used for mounting the brake assembly (7) for braking the execution assembly (2) on the mounting box (1);

the rotating assembly (8) is used for limiting the executing assembly (2), and the rotating assembly (8) is arranged on the executing assembly (2);

the control assembly (9) is used for controlling the operation of the internal components of the linear electric actuator, and the control assembly (9) is arranged on the installation box (1).

2. The straight-stroke electric actuator with the adjustable dead zone as claimed in claim 1, wherein the actuating assembly (2) comprises a driving shaft (21), a worm wheel (22), a supporting shaft (23), a worm (24), a driven gear (25), a first mounting shaft (26), a driving gear (27) and a manual rotating disc (28), the driving shaft (21) is vertically and rotatably connected to the inside of the mounting box (1) and the lower end of the driving shaft penetrates through the mounting box (1), the worm wheel (22) is mounted inside the mounting box (1) and fixedly sleeved on the driving shaft (21), the supporting shaft (23) is transversely and rotatably connected to the inside of the mounting box (1), the worm wheel (24) is fixedly sleeved on the supporting shaft (23) and is meshed with the worm wheel (22), the driven gear (25) is fixedly mounted at one end of the supporting shaft (23), and the first mounting shaft (26) is transversely and rotatably connected to the inside of the mounting box (1), and the driving gear (27) is fixedly sleeved on the first mounting shaft (26) and is symmetrically arranged with the driven gear (25), and the manual rotating disc (28) is vertically mounted at the top of the mounting box (1) and is fixedly connected with the upper end of the driving shaft (21).

3. The adjustable dead band linear electric actuator of claim 2, the connecting component (3) comprises a sleeve (31), a first flange (32), a connecting disc (33), a fixing block (34), a reinforcing rod (35), a valve shaft (36) and a second flange (37), the sleeve (31) is fixedly arranged at the bottom of the installation box (1) through a first flange plate (32), the driving shaft (21) penetrates through the sleeve (31), the connecting disc (33) is arranged at the bottom of the sleeve (31), two groups of fixing blocks (34) are respectively and fixedly arranged on the side walls of the sleeve (31) and the connecting disc (33), the fixing blocks (34) arranged on the sleeve (31) and the connecting disc (33) are fixedly connected through reinforcing rods (35), the valve shaft (36) is vertically and directly communicated with the second flange plate (37) and is fixedly connected with the bottom of the driving shaft (21).

4. The straight-stroke electric actuator with the adjustable dead zone as claimed in claim 2, wherein the driving assembly (5) comprises a first mounting cylinder (51), a driving motor (52), a rotating shaft (53), a second mounting shaft (54), a first bevel gear (55), a second bevel gear (56), a limiting connecting cylinder (57), a limiting connecting block (58) and a third flange (59), the first mounting cylinder (51) is fixedly mounted on the side wall of the mounting box (1) through the third flange (59), the driving motor (52) is mounted inside the first mounting cylinder (51), the rotating shaft (53) is fixedly mounted on the output end of the driving motor (52), the second mounting shaft (54) is rotatably connected inside the mounting box (1) and is arranged perpendicular to the first mounting shaft (26), and the first bevel gear (55) and the second bevel gear (56) are respectively and fixedly mounted on the ends of the second mounting shaft (54) and the first mounting shaft (26) and are meshed with each other And the limiting connecting cylinder (57) and the limiting connecting block (58) are arranged at the other ends of the second mounting shaft (54) and the rotating shaft (53) respectively, and the limiting connecting cylinder (57) is in limiting connection with the limiting connecting block (58).

5. The straight-stroke electric actuator with the adjustable dead zone as claimed in claim 4, wherein the manual clutch (4) comprises a connecting gear (41), a rotating shaft (42), a connecting shaft (43), a handle (44) and a rubber sleeve (45), the connecting gear (41) is mounted inside the mounting box (1), the connecting gear (41) is located between the driving gear (27) and the driven gear (25) and can be meshed with the driving gear, one end of the rotating shaft (42) is rotatably connected to the end of the connecting gear (41), the connecting shaft (43) is mounted on the outer side wall of the mounting box (1) and is in transmission connection with the rotating shaft (42) through a driving piece, the handle (44) is fixedly mounted at the end of the connecting shaft (43) located outside the mounting box (1), and the rubber sleeve (45) is fixedly sleeved on the handle (44).

6. The dead-zone-adjustable linear electric actuator according to claim 4, wherein the limiting assembly (6) comprises a first arc-shaped limiting block (61) and a second arc-shaped limiting block (62), a plurality of the first arc-shaped limiting blocks (61) are arranged around and fixedly mounted on the inner wall of the first mounting cylinder (51), a plurality of the second arc-shaped limiting blocks (62) are arranged around and fixedly mounted on the side wall of the driving motor (52), and the plurality of the first arc-shaped limiting blocks (61) and the plurality of the second arc-shaped limiting blocks (62) are arranged in a staggered manner.

7. The straight-stroke electric actuator with the adjustable dead zone as claimed in claim 2, wherein the brake assembly (7) comprises a second mounting cylinder (71), a fourth flange (72), a fixed cylinder (73), a brake gear (74), a brake block (75), a tooth slot (76), an air cylinder (77) and a piston rod (78), the second mounting cylinder (71) is fixedly mounted on the side wall of the mounting box (1) through the fourth flange (72), the fixed cylinder (73) is vertically and fixedly mounted on the second mounting cylinder (71), one end of the support shaft (23) far away from the driven gear (25) extends into the second mounting cylinder (71) and is fixedly connected with the brake gear (74), the brake block (75) is mounted in the second mounting cylinder (71) and is positioned right above the brake gear (74), the tooth slot (76) is opened at the bottom of the brake block (75) and is matched with the brake gear (74), the cylinder (77) is vertically and fixedly mounted inside the fixed cylinder (73), the piston rod (78) is vertically and fixedly mounted on the output end of the cylinder (77), and the bottom end of the piston rod (78) is fixedly connected with the upper end of the brake block (75).

8. The direct-stroke electric actuator with the adjustable dead zone as claimed in claim 3, wherein the rotating assembly (8) comprises an annular rotating groove (81), an annular rotating block (82) and balls (83), the annular rotating groove (81) is vertically arranged in the inner wall of the sleeve (31), the annular rotating block (82) is rotatably connected in the annular rotating groove (81) and is fixedly sleeved on the driving shaft (21), and the balls (83) are arranged in the annular rotating groove (81) and are in rolling connection with the annular rotating block (82).

9. The straight-stroke electric actuator with the adjustable dead zone as claimed in claim 1, wherein the control assembly (9) comprises a third mounting cylinder (91), a fifth flange (92), a controller (93) and indicator lamps (94), the third mounting cylinder (91) is fixedly mounted on the side wall of the mounting box (1) through the fifth flange (92), the controller (93) is mounted inside the third mounting cylinder (91), and the indicator lamps (94) are mounted on the third mounting cylinder (91).

10. The direct-stroke electric actuator with the adjustable dead zone as claimed in claim 5, wherein the driven gear (25), the driving gear (27), the connecting gear (41), the first helical gear (55), the second helical gear (56), the worm wheel (22) and the worm (24) are coated with lubricating oil.

Technical Field

The invention relates to the field of electric actuators, in particular to a dead zone adjustable straight-stroke electric actuator.

Background

The electric actuator is an actuating mechanism, and the most extensive definition of the actuating mechanism is; a drive device capable of providing linear or rotary motion utilizes a drive energy source and operates under a control signal. Actuators use liquid, gas, electricity or other energy sources and convert them into drive action by motors, cylinders or other means. In order to realize mechanical operation, a straight-stroke electric actuator is arranged on the valve to realize opening and closing control of the valve.

The existing straight-stroke electric actuator drives the valve piece, the valve piece inside the valve can reversely drive the transmission part inside the straight-stroke electric actuator to reversely rotate when receiving large resistance, certain oscillation impact force is exerted on the transmission assembly, and the transmission assembly can be rapidly abraded by the long-term oscillation impact force, so that the service life of the straight-stroke electric actuator is influenced.

Therefore, there is a need to provide a new linear actuator with adjustable dead zone to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problem, the invention provides a straight-stroke electric actuator with an adjustable dead zone.

The invention provides a dead zone adjustable straight-stroke electric actuator, which comprises: installing a box; the execution component is used for controlling the opening and closing of the valve and is arranged in the installation box; the connecting assembly is used for connecting the actuating assembly and the valve and is arranged at the bottom of the mounting box; the driving component is used for driving the execution component to operate and is arranged on the installation box; the manual clutch is used for connecting the driving assembly and the executing assembly and is arranged on the mounting box; the limiting assembly is used for limiting the driving assembly and is arranged in the driving assembly; the brake assembly is used for braking the execution assembly and is arranged on the installation box; the rotating assembly is used for limiting the executing assembly and is arranged on the executing assembly; and the control assembly is used for controlling the operation of the internal components of the linear electric actuator and is arranged on the mounting box.

Preferably, the execution module includes the drive shaft, the turbine, the back shaft, the worm, driven gear, first installation axle, driving gear and manual carousel, the vertical rotation of drive shaft is connected in the inside and lower extreme of install bin and runs through the install bin, the turbine is installed in the install bin inside and fixed cover is located in the drive shaft, back shaft transverse rotation is connected in the install bin inside, and the fixed cover of worm is located on the back shaft and is set up with the turbine meshing, driven gear fixed mounting is in the one end of back shaft, first installation axle transverse rotation is connected in the install bin inside, and the fixed cover of driving gear is located first installation epaxially and is set up with driven gear symmetry, manual carousel is vertical install in the top of install bin and with drive shaft upper end fixed connection.

Preferably, the connecting assembly comprises a sleeve, a first flange plate, a connecting disc, fixing blocks, reinforcing rods, a valve shaft and a second flange plate, the sleeve is fixedly installed at the bottom of the installation box through the first flange plate, the driving shaft penetrates through the sleeve to be arranged, the connecting disc is installed at the bottom of the sleeve, the two groups of fixing blocks are fixedly installed on the side walls of the sleeve and the connecting disc respectively, the fixing blocks installed on the sleeve and the connecting disc are fixedly connected through the reinforcing rods, and the valve shaft vertically passes through the second flange plate and is fixedly connected with the bottom of the driving shaft.

Preferably, the drive assembly includes a first installation cylinder, a driving motor, a rotating shaft, a second installation shaft, a first helical gear, a second helical gear, a limit connection cylinder, a limit connection block and a third flange plate, the first installation cylinder is fixedly installed on the side wall of the installation box through the third flange plate, the driving motor is installed inside the first installation cylinder, and the rotating shaft is fixedly installed on the output end of the driving motor, the second installation shaft is rotatably connected inside the installation box and is perpendicular to the first installation shaft, the first helical gear and the second helical gear are respectively and fixedly installed at the ends of the second installation shaft and the first installation shaft and are meshed with each other, the limit connection cylinder and the limit connection block are respectively installed at the other ends of the second installation shaft and the rotating shaft, and the limit connection cylinder and the limit connection block are in limit connection.

Preferably, manual clutch is including connecting gear, axis of rotation, connecting axle, handle and rubber sleeve, and connecting gear installs inside the install bin, and connecting gear is located and can meshes the setting between driving gear and the driven gear, and the one end of axis of rotation is rotated and is connected in connecting gear tip, and the connecting axle is installed on the lateral wall of install bin and is connected with the axis of rotation transmission through the driving piece, and handle fixed mounting is located the connecting axle tip outside the install bin, and the fixed cover of rubber sleeve is located on hand.

Preferably, the limiting assembly comprises a first arc limiting block and a second arc limiting block, the first arc limiting blocks are arranged around the first mounting cylinder and fixedly mounted on the inner wall of the first mounting cylinder, the second arc limiting blocks are arranged around the second mounting cylinder and fixedly mounted on the side wall of the driving motor, and the first arc limiting blocks and the second arc limiting blocks are arranged in a staggered mode.

Preferably, the brake subassembly includes the second installation section of thick bamboo, the fourth ring flange, the solid fixed cylinder, brake gear, the brake pad, the tooth's socket, cylinder and piston rod, the second installation section of thick bamboo passes through fourth ring flange fixed mounting on the lateral wall of install bin, and the vertical fixed mounting of solid fixed cylinder is on the second installation section of thick bamboo, the one end that driven gear was kept away from to the back shaft extends to the inside and fixedly connected with brake gear of second installation section of thick bamboo, the brake pad is installed inside the second installation section of thick bamboo and is located directly over brake gear, the tooth's socket is seted up in the bottom of brake pad and is set up with the brake gear cooperation, the vertical fixed mounting of cylinder is inside the solid fixed cylinder, and the vertical fixed mounting of piston rod is on the output of cylinder, the bottom and the brake pad upper end fixed connection of piston rod.

Preferably, the rotating assembly comprises an annular rotating groove, an annular rotating block and balls, the annular rotating groove is vertically formed in the inner wall of the sleeve, the annular rotating block is rotatably connected to the annular rotating groove and is fixedly sleeved on the driving shaft, and the balls are arranged in the annular rotating groove and are in rolling connection with the annular rotating block.

Preferably, the control assembly comprises a third mounting cylinder, a fifth flange plate, a controller and indicator lamps, the third mounting cylinder is fixedly mounted on the side wall of the mounting box through the fifth flange plate, the controller is mounted inside the third mounting cylinder, and the indicator lamps are mounted on the third mounting cylinder.

Preferably, the driven gear, the driving gear, the connecting gear, the first helical gear, the second helical gear, the worm wheel and the worm are coated with lubricating oil.

Compared with the related art, the straight-stroke electric actuator with the adjustable dead zone has the following beneficial effects:

1. the dead zone in the invention can be adjusted according to actual conditions, and by arranging the brake assembly, when the linear-stroke electric actuator is not driven to run, the brake block is controlled by the air cylinder to descend and the tooth grooves clamp the brake gear, the support shaft can be braked, so that the drive shaft is braked, a valve piece in the valve is prevented from reversely driving the drive shaft to rotate when being subjected to larger resistance, the use stability of the device is improved, the service life of the device is prolonged, the drive shaft can also be driven by a manual turntable, and the use is more flexible;

2. the connecting assembly, the driving assembly, the braking assembly and the control assembly are respectively and fixedly connected to the mounting box through the first flange plate, the third flange plate, the fourth flange plate and the fifth flange plate, so that various parts mounted on the linear electric actuator can be conveniently overhauled and replaced;

3. according to the invention, the limiting assembly is arranged, the plurality of second arc-shaped limiting blocks on the driving motor are inserted into the gaps among the plurality of first arc-shaped limiting blocks in the first mounting cylinder in an aligning manner, so that the plurality of first arc-shaped limiting blocks and the plurality of second arc-shaped limiting blocks form a complete circular ring, the driving motor is limited in the first mounting cylinder, and the driving motor is convenient to mount and dismount;

4. according to the invention, the rotating assembly is arranged, the annular rotating block can rotate in the annular rotating groove to limit the driving shaft, so that the driving shaft is supported, the stability of the driving shaft is improved, and the opening at the upper end of the annular rotating groove is directly communicated with the top end of the sleeve, so that the connecting assembly is convenient to mount and dismount;

5. according to the invention, lubricating oil is coated on the driven gear, the driving gear, the connecting gear, the first helical gear, the second helical gear, the worm wheel and the worm, so that the lubricating property of the driven gear, the driving gear, the connecting gear, the first helical gear, the second helical gear, the worm wheel and the worm is improved, the friction force among corresponding parts is reduced, and the transmission among the corresponding parts is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a linear electric actuator with an adjustable dead zone according to the present invention;

FIG. 2 is a schematic view of a connecting assembly according to the present invention;

FIG. 3 is a schematic view of a rotating assembly according to the present invention;

FIG. 4 is a schematic structural diagram of a driving assembly according to the present invention;

FIG. 5 is a schematic structural diagram of the connection between the driving module and the executing module according to the present invention;

FIG. 6 is a schematic diagram of an actuator assembly according to the present invention;

FIG. 7 is a schematic structural view of a brake assembly according to the present invention;

FIG. 8 is a schematic view of the interior of the fixed cylinder according to the present invention;

FIG. 9 is a schematic structural view of the manual clutch of the present invention;

fig. 10 is a schematic structural diagram of a control assembly according to the present invention.

Reference numbers in the figures: 1. installing a box; 2. an execution component; 21. a drive shaft; 22. a turbine; 23. a support shaft; 24. a worm; 25. a driven gear; 26. a first mounting shaft; 27. a driving gear; 28. a manual turntable; 3. a connecting assembly; 31. a sleeve; 32. a first flange plate; 33. a connecting disc; 34. a fixed block; 35. a reinforcing rod; 36. a valve shaft; 37. a second flange plate; 4. a manual clutch; 41. a connecting gear; 42. a rotating shaft; 43. a connecting shaft; 44. a handle; 45. a rubber sleeve; 5. a drive assembly; 51. a first mounting cylinder; 52. a drive motor; 53. a rotating shaft; 54. a second mounting shaft; 55. a first helical gear; 56. a second helical gear; 57. a limit connecting cylinder; 58. a limiting connecting block; 59. a third flange plate; 6. a limiting component; 61. a first arc-shaped limiting block; 62. a second arc-shaped limiting block; 7. a brake assembly; 71. a second mounting cylinder; 72. a fourth flange plate; 73. a fixed cylinder; 74. a brake gear; 75. a brake pad; 76. a tooth socket; 77. a cylinder; 78. a piston rod; 8. a rotating assembly; 81. an annular rotary groove; 82. an annular rotating block; 83. a ball bearing; 9. a control component; 91. a third mounting cylinder; 92. a fifth flange plate; 93. a controller; 94. and an indicator light.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1-10, fig. 1 is a schematic structural diagram of a linear electric actuator with adjustable dead zone according to a preferred embodiment of the present invention; FIG. 2 is a schematic view of a connecting assembly according to the present invention; FIG. 3 is a schematic view of a rotating assembly according to the present invention; FIG. 4 is a schematic structural diagram of a driving assembly according to the present invention; FIG. 5 is a schematic structural diagram of the connection between the driving module and the executing module according to the present invention; FIG. 6 is a schematic diagram of an actuator assembly according to the present invention; FIG. 7 is a schematic structural view of a brake assembly according to the present invention; FIG. 8 is a schematic view of the interior of the fixed cylinder according to the present invention; FIG. 9 is a schematic structural view of the manual clutch of the present invention; fig. 10 is a schematic structural diagram of a control assembly according to the present invention. The method comprises the following steps: the device comprises a mounting box 1, an actuating assembly 2, a connecting assembly 3, a manual clutch 4, a driving assembly 5, a limiting assembly 6, a braking assembly 7, a rotating assembly 8 and a control assembly 9.

In the specific implementation process, as shown in fig. 1, 5 and 6, the actuating assembly 2 for controlling the opening and closing of the valve is installed inside the installation box 1, the actuating assembly 2 includes a driving shaft 21, a worm wheel 22, a supporting shaft 23, a worm 24, a driven gear 25, a first installation shaft 26, a driving gear 27 and a manual rotating disc 28, the driving shaft 21 is vertically and rotatably connected inside the installation box 1, the lower end of the driving shaft penetrates through the installation box 1, the worm wheel 22 is installed inside the installation box 1 and fixedly sleeved on the driving shaft 21, the supporting shaft 23 is transversely and rotatably connected inside the installation box 1, the worm 24 is fixedly sleeved on the supporting shaft 23 and is meshed with the worm wheel 22, the driven gear 25 is fixedly arranged at one end of the supporting shaft 23, the first mounting shaft 26 is transversely and rotatably connected with the inside of the mounting box 1, the driving gear 27 is fixedly sleeved on the first mounting shaft 26 and is symmetrically arranged with the driven gear 25, and the manual rotating disc 28 is vertically mounted at the top of the mounting box 1 and is fixedly connected with the upper end of the driving shaft 21;

it should be noted that: when the assembly is used, the assembly is connected with a valve through a connecting assembly 3, an installation box 1 is fixed on the valve, a driving assembly 5 and an execution assembly 2 are connected by controlling a manual clutch 4, a control assembly 9 controls a brake assembly 7 to release the limitation on a supporting shaft 23, a driving gear 27 is driven to rotate through the driving assembly 5, so that the driving gear 27 is driven to rotate, the supporting shaft 23 drives a worm 24 to rotate, a turbine 22 fixedly sleeved on a driving shaft 21 is driven to rotate, and the driving shaft 21 controls the valve to rotate to perform opening and closing operations;

the driving shaft 21 can be driven by rotating the manual turntable 28, and the control assembly 9 of the present invention can control the dead zone range, so as to realize dead zone adjustment.

Referring to fig. 1 and 2, a connecting assembly 3 for connecting an actuating assembly 2 and a valve is mounted at the bottom of a mounting box 1, the connecting assembly 3 includes a sleeve 31, a first flange 32, a connecting disc 33, fixing blocks 34, a reinforcing rod 35, a valve shaft 36 and a second flange 37, the sleeve 31 is fixedly mounted at the bottom of the mounting box 1 through the first flange 32, a driving shaft 21 is arranged to penetrate through the sleeve 31, the connecting disc 33 is mounted at the bottom of the sleeve 31, two groups of fixing blocks 34 are respectively fixedly mounted on the side walls of the sleeve 31 and the connecting disc 33, the fixing blocks 34 mounted on the sleeve 31 and the connecting disc 33 are fixedly connected through the reinforcing rod 35, and the valve shaft 36 is vertically fixedly connected with the bottom of the driving shaft 21 through the second flange 37;

it should be noted that: when the installation box 1 is connected with a valve, the connecting disc 33 is fixedly connected with the valve through a fixing bolt, the driving shaft 21 is fixedly connected with a valve shaft 36 in the valve through a second flange 37, the sleeve 31 is fixedly connected with the connecting disc 33 through a fixing block 34 and a reinforcing rod 35, the sleeve 31 is limited and fixed, and the sleeve 31 is fixedly connected with the installation box 1 through a first flange 32, so that the connection assembly 3 can be separated from the installation box 1, and the connection assembly 3 can be conveniently replaced.

Referring to fig. 1, 4 and 5, a driving assembly 5 for driving the actuating assembly 2 to operate is mounted on the mounting box 1, the driving assembly 5 includes a first mounting cylinder 51, a driving motor 52, a rotating shaft 53, a second mounting shaft 54, a first helical gear 55, a second helical gear 56, a limit connecting cylinder 57, a limit connecting block 58 and a third flange 59, the first mounting cylinder 51 is fixedly mounted on a side wall of the mounting box 1 through the third flange 59, the driving motor 52 is mounted inside the first mounting cylinder 51, the rotating shaft 53 is fixedly mounted on an output end of the driving motor 52, the second mounting shaft 54 is rotatably connected inside the mounting box 1 and is perpendicular to the first mounting shaft 26, the first helical gear 55 and the second helical gear 56 are respectively fixedly mounted on ends of the second mounting shaft 54 and the first mounting shaft 26 and are engaged with each other end of the second mounting shaft 54 and the rotating shaft 53, the limit connecting cylinder 57 is connected with the limit connecting block 58 in a limit way;

it should be noted that: the first mounting cylinder 51 is fixedly connected with the mounting box 1 through a third flange 59, and is detachable, when the driving shaft 21 is driven, the driving motor 52 drives the rotating shaft 53 to rotate, and then drives the first bevel gear 55 on the second mounting shaft 54 to rotate, so as to drive the second bevel gear 56 to drive the driving gear 27 on the first mounting shaft 26 to rotate, and drive the driving shaft 21 to rotate;

wherein, in the installation of drive assembly 5, aim at installation box 1 lateral wall with first installation section of thick bamboo 51, make pivot 53 stretch into installation box 1 inside, and make the spacing connecting block 58 of pivot 53 tip inject spacing connecting cylinder 57 in, make pivot 53 be connected fixedly through spacing connecting cylinder 57 and spacing connecting block 58 with second installation axle 54, rethread third flange 59 is fixed first installation section of thick bamboo 51 on installation box 1, realize being connected of pivot 53 and second installation axle 54 on the driving motor 52, conveniently overhaul the change to driving motor 52.

Referring to fig. 1 and 9, a manual clutch 4 for connecting a driving assembly 5 and an actuating assembly 2 is mounted on a mounting box 1, the manual clutch 4 includes a connecting gear 41, a rotating shaft 42, a connecting shaft 43, a handle 44 and a rubber sleeve 45, the connecting gear 41 is mounted inside the mounting box 1, the connecting gear 41 is positioned between the driving gear 27 and the driven gear 25 and can be meshed with the driving gear, one end of the rotating shaft 42 is rotatably connected to the end of the connecting gear 41, the connecting shaft 43 is mounted on the outer side wall of the mounting box 1 and is in transmission connection with the rotating shaft 42 through a driving piece, the handle 44 is fixedly mounted on the end of the connecting shaft 43 positioned outside the mounting box 1, and the rubber sleeve 45 is fixedly sleeved on the handle 44;

it should be noted that: when the manual clutch 4 is used for connecting the driving assembly 5 with the actuating assembly 2, the connecting shaft 43 can be rotated through the handle 44, so that the driving piece drives the connecting gear 41 on the rotating shaft 42 to be close to and meshed with the driving gear 27 and the driven gear 25, and then the connection of the driving assembly 5 and the actuating assembly 2 can be completed;

the rubber sleeve 45 can increase the surface friction force of the handle 44, and the rubber sleeve 45 has flexibility, so that the discomfort of a worker holding the handle 44 is relieved, and the worker can use the handle 44 conveniently;

wherein, the driving member can be a sliding barrel, a sliding rod, a reset spring and a cam, the sliding barrel is vertically and fixedly arranged inside the installation box 1, the sliding rod is vertically and slidably connected inside the sliding barrel through the reset spring, the cam is fixedly arranged at one end of the connection shaft 43 positioned inside the installation box 1 and is abutted against the upper end of the sliding rod, the lower end of the sliding rod is fixedly connected with the rotating shaft 42, the handle 44 is also provided with a brake button and a brake arranged on the connection shaft 43, when the connection shaft 43 rotates, the cam is driven to rotate to extrude the upper end of the sliding rod, the sliding rod slides downwards to extrude the reset spring, so as to drive the connection gear 41 on the rotating shaft 42 to be close to and meshed with the driving gear 27 and the driven gear 25, the brake is controlled to brake the connection shaft 43 by pressing the brake button, when the brake button is pressed again, the brake releases the rotation of the connection shaft 43, under the elastic force of the return spring, the slide rod returns to the initial position, and the connecting gear 41 ascends to release the connection between the driving assembly 5 and the actuating assembly 2.

Referring to fig. 4, a limiting assembly 6 for limiting the driving assembly 5 is installed in the driving assembly 5, the limiting assembly 6 includes first arc-shaped limiting blocks 61 and second arc-shaped limiting blocks 62, a plurality of first arc-shaped limiting blocks 61 are fixedly installed on the inner wall of the first installation cylinder 51 in a surrounding arrangement manner, a plurality of second arc-shaped limiting blocks 62 are fixedly installed on the side wall of the driving motor 52 in a surrounding arrangement manner, and the plurality of first arc-shaped limiting blocks 61 and the plurality of second arc-shaped limiting blocks 62 are arranged in a staggered manner;

it should be noted that: when the driving motor 52 is installed in the first installation cylinder 51, the plurality of second arc-shaped limit blocks 62 on the driving motor 52 are inserted into the gaps among the plurality of first arc-shaped limit blocks 61 in the first installation cylinder 51 in an aligning manner, so that the plurality of first arc-shaped limit blocks 61 and the plurality of second arc-shaped limit blocks 62 form a complete circular ring, the driving motor 52 is limited in the first installation cylinder 51, and the installation and the disassembly of the driving motor 52 are facilitated;

wherein, the positions that a plurality of first arc stopper 61 and a plurality of second arc stopper 62 butt joint all are the arc, make things convenient for the butt joint of first arc stopper 61 and second arc stopper 62 to make things convenient for driving motor 52's installation.

Referring to fig. 1, 7 and 8, a brake assembly 7 for braking the actuating assembly 2 is mounted on the mounting box 1, the brake assembly 7 includes a second mounting cylinder 71, a fourth flange 72, a fixed cylinder 73, a brake gear 74, a brake block 75, a tooth slot 76, an air cylinder 77 and a piston rod 78, the second mounting cylinder 71 is fixedly mounted on the side wall of the mounting box 1 through the fourth flange 72, the fixed cylinder 73 is vertically and fixedly mounted on the second mounting cylinder 71, one end of the support shaft 23 away from the driven gear 25 extends into the second mounting cylinder 71 and is fixedly connected with the brake gear 74, the brake block 75 is mounted inside the second mounting cylinder 71 and is positioned right above the brake gear 74, the tooth slot 76 is opened at the bottom of the brake block 75 and is matched with the brake gear 74, the air cylinder 77 is vertically and fixedly mounted inside the fixed cylinder 73, and the piston rod 78 is vertically and fixedly mounted on the output end of the air cylinder 77, the bottom end of the piston rod 78 is fixedly connected with the upper end of the brake block 75;

it should be noted that: the second mounting tube 71 is fixed on the mounting box 1 through the fourth flange 72, the cylinder 77 in the fixed tube 73 can control the brake block 75 at the lower end of the piston rod 78 to move up and down, when the brake block 75 moves down and the spline 76 blocks the brake gear 74, the support shaft 23 can be braked, thereby braking the drive shaft 21, preventing the valve member in the valve from reversely driving the drive shaft 21 to rotate when receiving large resistance, improving the service stability of the device and the service life of the device, and the limit of the drive shaft 21 can be released when the spline 76 is separated from the brake gear 74 due to the rising of the brake block 75.

Referring to fig. 3, the rotating assembly 8 for limiting the actuating assembly 2 is installed on the actuating assembly 2, the rotating assembly 8 includes an annular rotating groove 81, an annular rotating block 82 and balls 83, the annular rotating groove 81 is vertically formed in the inner wall of the sleeve 31, the annular rotating block 82 is rotatably connected to the annular rotating groove 81 and is fixedly sleeved on the driving shaft 21, and the balls 83 are installed in the annular rotating groove 81 and are in rolling connection with the annular rotating block 82;

it should be noted that: the annular rotating block 82 can rotate in the annular rotating groove 81 to limit the driving shaft 21, so that the driving shaft 21 is supported, and the stability of the driving shaft 21 is improved;

wherein, the upper end opening of the annular rotary groove 81 is directly communicated with the top end of the sleeve 31, thereby facilitating the assembly and disassembly of the connecting component 3.

Referring to fig. 1 and 10, a control assembly 9 for controlling the operation of internal components of the linear electric actuator is mounted on a mounting box 1, the control assembly 9 includes a third mounting tube 91, a fifth flange 92, a controller 93 and indicator lamps 94, the third mounting tube 91 is fixedly mounted on the side wall of the mounting box 1 through the fifth flange 92, the controller 93 is mounted inside the third mounting tube 91, and the indicator lamps 94 are mounted on the third mounting tube 91;

it should be noted that: the third mounting cylinder 91 is fixedly connected with the mounting box 1 through a fifth flange 92, is detachable, controls an execution component in the device through a controller 93, and indicates the operation of the execution component in the device through an indicator lamp 94;

the executing components are circuit boards and the like in other series of linear electric actuators such as the executing assembly 2, the driving assembly 5, the braking assembly 7 and the like.

Lubricating oil is coated on the driven gear 25, the driving gear 27, the connecting gear 41, the first helical gear 55, the second helical gear 56, the worm wheel 22 and the worm 24, so that the lubricating performance of the driven gear 25, the driving gear 27, the connecting gear 41, the first helical gear 55, the second helical gear 56, the worm wheel 22 and the worm 24 is improved, the friction force among corresponding parts is reduced, and the transmission among the corresponding parts is facilitated.

The working principle provided by the invention is as follows: when the assembly is used, when the installation box 1 is connected with a valve, the connecting disc 33 is fixedly connected with the valve through a fixing bolt, the driving shaft 21 is fixedly connected with a valve shaft 36 in the valve through a second flange 37, the sleeve 31 is fixedly connected with the connecting disc 33 through a fixing block 34 and a reinforcing rod 35, the sleeve 31 is limited and fixed, the sleeve 31 is fixedly connected with the installation box 1 through a first flange 32, so that the installation box 1 is fixed on the valve, the connecting shaft 43 is rotated through the handle 44, the driving piece drives the connecting gear 41 on the rotating shaft 42 to be close to and meshed with the driving gear 27 and the driven gear 25, so that the connection of the driving assembly 5 and the executing assembly 2 can be completed, the controller 93 controls the air cylinder 77 in the fixing cylinder 73, so as to control the brake block 75 at the lower end of the piston rod 78 to rise, and the tooth groove 76 is separated from the brake gear 74, so that the limitation on the driving shaft 21 can be removed, the driving motor 52 drives the rotating shaft 53 to rotate, and then drives the first bevel gear 55 on the second mounting shaft 54 to rotate, so as to drive the second bevel gear 56 to drive the driving gear 27 on the first mounting shaft 26 to rotate, so as to drive the driving gear 27 to rotate, the support shaft 23 drives the worm 24 to rotate, so as to drive the turbine 22 fixedly sleeved on the driving shaft 21 to rotate, the driving shaft 21 then controls the valve to rotate to open and close, after the valve opening and closing operation is controlled to be completed, the air cylinder 77 controls the brake block 75 to descend, so that the tooth grooves 76 clamp the brake gear 74, the support shaft 23 is braked, so as to brake the driving shaft 21, and then the connecting shaft 43 is controlled to rotate by the handle 44, so that the connecting gear 41 on the rotating shaft 42 is far away from the driving gear 27 and the driven gear 25, and the connection between the driving assembly 5 and the executing assembly 2 is released;

the drive shaft 21 can also be driven by turning the manual dial 28.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.