Electric actuator stable in operation and transmission

Abstract

The invention discloses an electric actuator stable in operation and transmission, and relates to the technical field of electric actuators, the electric actuator comprises an electric actuator main body, a U-shaped frame is mounted on the front end face of the electric actuator main body, a mounting cover is connected to the U-shaped frame, a handle is arranged at the top of the mounting cover, a driving shaft is arranged in an inner cavity of the mounting cover, and a hand wheel is mounted on the driving shaft; a clamping component for limiting rotation of the driving shaft is arranged in an inner cavity of the mounting cover, a penetrating opening is formed in the left side wall of the U-shaped frame in a penetrating mode, a connecting groove communicated with the penetrating opening is formed in the left side wall of the mounting cover, a U-shaped base is connected to the outer wall of the left side of the U-shaped frame, and a dismounting and mounting mechanism for fixing the connecting groove is arranged in the U-shaped base. The clamping part can play a role in limiting rotation of the driving shaft, the situation that the electric actuator is touched by mistake when not used is avoided, the stability of operation transmission of the electric actuator is improved, the mounting cover and the U-shaped frame are rapidly dismounted and mounted through the dismounting and mounting mechanism, and dismounting, mounting and maintenance of workers are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of electric actuators, in particular to an electric actuator with stable operation and transmission. Background Art

[0002] Electric actuator is a device that controls mechanical movement through electrical signals. It can convert electrical energy into mechanical energy to drive valves, gears and other mechanical equipment to open, close or adjust. It is widely used in industrial pipeline control, fluid transportation, robotics and other occasions, with the advantages of convenient energy acquisition and fast signal transmission speed.

[0003] Publication number CN220566683U proposes an electric actuator, in which the transmission component is immersed in the lubricating oil in the oil box as a whole, the transmission wear is small, and the transmission component drives two symmetrically arranged worms to rotate through a servo motor using a driving gear and two driven gears. The two worms act on the worm wheel together, driving the worm wheel to rotate in one direction, thereby driving the rotating main shaft to rotate and adjusting the valve. This can further improve the stability of the transmission and increase the service life of the actuator.

[0004] The adjustment handwheel on the manual drive assembly of the above-mentioned patent does not have a limit structure. After the electric actuator determines the use position, the unrestricted adjustment handwheel is prone to accidental touch. The operation transmission of the electric actuator is not stable enough, and the mounting cover is connected to the housing assembly through multiple sets of screws. During disassembly and assembly, it needs to be repeatedly rotated with the help of tools, which is troublesome to operate and inconvenient for staff to disassemble and maintain. For this reason, we propose an electric actuator with stable operation transmission. Summary of the invention

[0005] The object of the present invention is to provide an electric actuator with stable operation transmission to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An electric actuator with stable operation transmission comprises an electric actuator body, a transmission component, a temperature control component and a manual drive component are arranged on the electric actuator body, a U-shaped frame is installed on the front end surface of the electric actuator body, a mounting cover is connected to the U-shaped frame, a handle is arranged on the top of the mounting cover, a driving shaft connected to the transmission component is arranged in the inner cavity of the mounting cover, a front end of the driving shaft passes through the front end surface of the mounting cover, a hand wheel is arranged on the driving shaft, and a clamping component for limiting the rotation of the driving shaft is arranged in the inner cavity of the mounting cover;

[0008] The left side wall of the U-shaped frame is provided with a through opening, the left side wall of the mounting cover is provided with a connecting groove connected to the through opening, the left outer wall of the U-shaped frame is connected with a U-shaped seat, and a disassembly and assembly mechanism for fixing the connecting groove is provided in the U-shaped seat.

[0009] Further: the clamping component includes a lower arc-shaped friction seat, which is connected to the bottom wall of the inner cavity of the mounting cover, and the lower arc-shaped friction seat is in contact with the outer wall of the driving shaft. The clamping component also includes an L-shaped plate, which is located at the top of the mounting cover, and the L-shaped plate is vertically threaded with an adjusting screw, and the bottom of the adjusting screw is movably connected to the upper arc-shaped friction plate of the limited driving shaft.

[0010] Furthermore: the disassembly and assembly mechanism comprises a horizontal tie rod slidably connected in the U-shaped seat, and one end of the horizontal tie rod close to the installation cover is connected with a positioning block adapted to the connection groove.

[0011] Furthermore: an auxiliary slide is connected to the tie rod, and the auxiliary slide is slidably connected to the inner wall of the U-shaped seat, and the outer wall of the tie rod is sleeved with a compression spring, which is located between the outer side of the auxiliary slide and the inner wall of the U-shaped seat.

[0012] Furthermore: a pull ring is installed at one end of the horizontal tie rod away from the positioning block, and the handheld end of the pull ring is embedded with staggered protrusions.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention can drive the upper arc-shaped friction plate of the movably connected connection to move downward by rotating the adjusting screw on the clamping component, and cooperate with the function of the lower arc-shaped friction seat to clamp and limit the rotation of the driving shaft, thereby avoiding the electric actuator from being accidentally touched when not in use, and further improving the stability of the operation transmission of the electric actuator; through the pulling of the horizontal tie rod on the disassembly and assembly mechanism and the elasticity of the compression spring, the positioning block can be connected or disengaged from the connecting groove, thereby realizing the rapid disassembly and assembly of the installation cover and the U-shaped frame, replacing the traditional method of fixing with screws, and no tool is required for rotation, which is convenient for the staff to disassemble, assemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a cross-sectional schematic diagram of the connection structure between the U-shaped frame, the mounting cover and the front side of the U-shaped seat of the present invention;

[0017] Figure 3 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. Electric actuator body; 2. U-shaped frame; 3. Mounting cover; 4. Handle; 5. U-shaped seat; 6. Handwheel; 7. Driving shaft; 8. Lower arc friction seat; 9. L-shaped plate; 10. Adjusting screw; 11. Upper arc friction plate; 12. Pull ring; 13. Connecting groove; 14. Transverse tie rod; 15. Auxiliary slide plate; 16. Compression spring; 17. Through opening; 18. Positioning block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1:

[0021] See also Figure 1-3 The present invention provides a technical solution: an electric actuator with stable operation transmission, comprising an electric actuator body 1, on which a transmission assembly, a temperature control assembly and a manual drive assembly are arranged, a U-shaped frame 2 is installed on the front end surface of the electric actuator body 1, a mounting cover 3 is connected to the U-shaped frame 2, a handle 4 is arranged on the top of the mounting cover 3, and a driving shaft 7 connected to the transmission assembly is arranged in the inner cavity of the mounting cover 3, the front end of the driving shaft 7 passes through the front end surface of the mounting cover 3, and a hand wheel 6 is installed on the driving shaft 7, and a clamping component for limiting the rotation of the driving shaft 7 is arranged in the inner cavity of the mounting cover 3; Publication No. CN220566683U proposes an electric actuator, in which a transmission assembly, a temperature control assembly and a manual drive assembly are mentioned, and the transmission assembly, temperature control assembly and manual drive assembly of the present application are structures in the comparative documents, which are existing structures, and the specific working principle is not elaborated here;

[0022] The U-shaped frame 2 is fixedly connected to the housing of the electric actuator body 1. The rotation of the hand wheel 6 can drive the drive shaft 7 to rotate, thereby achieving the purpose of adjusting the electric actuator body 1. After the electric actuator body 1 determines the use position, the clamping component can play a role in clamping and limiting the rotation of the drive shaft 7, thereby avoiding the electric actuator from being accidentally touched when not in use, and further improving the stability of the electric actuator operation transmission;

[0023] A through opening 17 is provided on the left side wall of the U-shaped frame 2, a connecting groove 13 connected to the through opening 17 is provided on the left side wall of the mounting cover 3, a U-shaped seat 5 is connected to the left outer wall of the U-shaped frame 2, and a disassembly and assembly mechanism for fixing the connecting groove 13 is provided in the U-shaped seat 5; the U-shaped seat 5 is fixedly connected to the outer wall of the U-shaped frame 2, and the disassembly and assembly mechanism realizes the rapid disassembly and assembly of the mounting cover 3 and the U-shaped frame 2, replacing the traditional method of fixing with screws, and does not require the use of tools to rotate, which is convenient for the staff to disassemble and maintain.

[0024] Among them, preferably, the clamping component includes a lower arc-shaped friction seat 8, which is connected to the bottom wall of the inner cavity of the mounting cover 3, and the lower arc-shaped friction seat 8 is in contact with the outer wall of the driving shaft 7. The clamping component also includes an L-shaped plate 9, which is located at the top of the mounting cover 3, and an adjusting screw 10 is vertically threadedly connected to the L-shaped plate 9, and the bottom of the adjusting screw 10 is movably connected to an upper arc-shaped friction plate 11 of the limited driving shaft 7; the bottom end of the adjusting screw 10 is movably connected to the upper arc-shaped friction plate 11 through a bearing, and when the hand wheel 6 and the driving shaft 7 are rotated, the upper arc-shaped friction plate 11 does not fit with the outer wall of the driving shaft 7, and the hand wheel 6 can drive the driving shaft 7 to rotate. After determining the use position of the electric actuator body 1, the adjusting screw 10 is rotated to drive the upper arc-shaped friction plate 11 to move downward, and cooperate with the action of the lower arc-shaped friction seat 8. The friction force between the two when in contact with the outer wall of the driving shaft 7 is large, and the driving shaft 7 can no longer rotate.

[0025] Preferably, the disassembly and assembly mechanism includes a tie rod 14 slidably connected in the U-shaped seat 5, and one end of the tie rod 14 close to the mounting cover 3 is connected to a positioning block 18 adapted to the connecting groove 13; the tie rod 14 and the positioning block 18 are fixedly connected.

[0026] Preferably, the tie rod 14 is connected with an auxiliary slide plate 15, and the auxiliary slide plate 15 is slidably connected with the inner wall of the U-shaped seat 5, and the outer wall of the tie rod 14 is sleeved with a compression spring 16, and the compression spring 16 is located between the outer side surface of the auxiliary slide plate 15 and the inner wall of the U-shaped seat 5;

[0027] The tie rod 14 and the auxiliary slide plate 15 are fixedly connected. When the installation cover 3 is connected to the U-shaped frame 2, the tie rod 14 is pulled outward, and the auxiliary slide plate 15 is moved outward at this time, the compression spring 16 is compressed, and the positioning block 18 is received in the inner cavity of the U-shaped seat 5 after passing through the through opening 17. At this time, the installation cover 3 can be smoothly installed on the U-shaped frame 2. When the through opening 17 is aligned with the connecting groove 13, the tie rod 14 is released, and the compressed compression spring 16 automatically returns to its original position, and the positioning block 18 can be moved through the through opening 17 and connected to the connecting groove 13, thus completing the installation of the U-shaped frame 2 and the installation cover 3. When disassembling, the tie rod 14 is pulled outward to disengage the positioning block 18 from the connecting groove 13, and the installation cover 3 can be disengaged from the U-shaped frame 2 after its position is no longer restricted.

[0028] Embodiment 2:

[0029] Reference Figure 2 This embodiment is different from the first embodiment in that a pull ring 12 is installed at one end of the horizontal tie rod 14 away from the positioning block 18, and the hand-held end of the pull ring 12 is embedded with staggered protrusions; the pull ring 12 facilitates the pulling of the horizontal tie rod 14, and the staggered protrusions can increase the friction with the staff's hands to avoid hand slippage during use.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric actuator with stable operation and transmission, comprising an electric actuator body (1), wherein the electric actuator body (1) is provided with a transmission component, a temperature control component and a manual drive component, and characterized in that: A U-shaped frame (2) is installed on the front end surface of the electric actuator body (1), and a mounting cover (3) is connected to the U-shaped frame (2). A handle (4) is provided on the top of the mounting cover (3), and a drive shaft (7) connected to a transmission component is provided in the inner cavity of the mounting cover (3). The front end of the drive shaft (7) passes through the front end surface of the mounting cover (3), and a hand wheel (6) is installed on the drive shaft (7). A clamping component for limiting the rotation of the drive shaft (7) is provided in the inner cavity of the mounting cover (3); The left side wall of the U-shaped frame (2) is provided with a through opening (17) which is arranged therethrough, the left side wall of the installation cover (3) is provided with a connecting groove (13) which is connected to the through opening (17), the left side outer wall of the U-shaped frame (2) is connected to a U-shaped seat (5), and a disassembly and assembly mechanism for fixing the connecting groove (13) is provided inside the U-shaped seat (5).

2. The electric actuator with stable operation transmission according to claim 1, characterized in that: The clamping component comprises a lower arc-shaped friction seat (8), which is connected to the bottom wall of the inner cavity of the mounting cover (3), and the lower arc-shaped friction seat (8) is in contact with the outer wall of the driving shaft (7).

3. The electric actuator with stable operation transmission according to claim 2, characterized in that: The clamping component also includes an L-shaped plate (9), the L-shaped plate (9) is located on the top of the mounting cover (3), and an adjusting screw (10) is vertically threadedly connected to the L-shaped plate (9), and the bottom of the adjusting screw (10) is movably connected to an upper arc-shaped friction plate (11) of the limited drive shaft (7).

4. The electric actuator with stable operation transmission according to claim 1, characterized in that: The disassembly and assembly mechanism comprises a tie rod (14) slidably connected in the U-shaped seat (5); one end of the tie rod (14) close to the mounting cover (3) is connected to a positioning block (18) adapted to the connection groove (13).

5. The electric actuator with stable operation and transmission according to claim 4, characterized in that: The tie rod (14) is connected to an auxiliary slide plate (15), and the auxiliary slide plate (15) is slidably connected to the inner wall of the U-shaped seat (5).

6. The electric actuator with stable operation transmission according to claim 5, characterized in that: The outer wall of the cross tie rod (14) is sleeved with a compression spring (16), and the compression spring (16) is located between the outer side surface of the auxiliary slide plate (15) and the inner wall of the U-shaped seat (5).

7. The electric actuator with stable operation transmission according to claim 4, characterized in that: A pull ring (12) is installed at one end of the transverse tie rod (14) away from the positioning block (18), and the handheld end of the pull ring (12) is embedded with staggered protrusions.

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