Anti-locking electric actuator assembly

Abstract

The utility model discloses an anti-locking electric actuator assembly which comprises a reduction gearbox, a driving motor is fixed on the right side of the bottom of the reduction gearbox, the top of an output shaft of the driving motor is fixedly connected with an input shaft of the reduction gearbox, and a screw rod is arranged below the reduction gearbox and located on the left side of the driving motor. An output shaft at the top of the screw is fixedly connected with an output shaft of the reduction gearbox; according to the anti-locking electric actuator assembly, the blocking anti-locking mechanism is arranged, the screw rod is rotated, the screw rod rotates to enable the nut to move, the nut moves up and down and is close to the blocking anti-locking mechanism, the baffle makes contact with the blocking buffer plate, the blocking buffer plate drives the connecting rod, the piston rod and the piston block to move, and the piston block extrudes damping oil; damping oil enters the containing groove through the penetrating hole, impact of the baffle is relieved, the baffle nut is prevented from moving through the blocking buffer plate, and blocking is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric actuator technical field, concretely is anti -stuck electric actuator assembly. BACKGROUND

[0002] Electric actuator is a kind of drive device that can provide linear motion, and it is widely used in various fields due to its high stability and accurate positioning advantages.The main components of electric actuator include controller, motor, reduction gearbox and screw nut transmission device, the nut is installed with load, and the controller controls the running speed and running direction of the load by controlling the rotating speed and direction of the motor.

[0003] After retrieval, the existing patent (publication number: CN217633654U) discloses an electric actuator with anti-stuck mechanism, including reduction gearbox, motor, screw rod, the outer thread of the screw rod is connected with nut, the outer fixed sleeve of the left end of the screw rod is provided with fixed ring, the outer end of the screw rod close to the fixed ring is movably sleeved with first buffer ring, the right side wall of the first buffer ring is fixedly connected with second rubber buffer ring, the left side of the first buffer ring is provided with second buffer column. The electric actuator with anti-stuck mechanism can limit and buffer protect the nut through the mutual cooperation of the second rubber buffer ring, first buffer ring, second buffer column, second buffer spring, second buffer hole slot, fixed ring, first buffer column, first buffer spring, second buffer ring, first rubber buffer ring and first buffer hole slot, which reduces the wear caused by the collision of the nut displacement to the end of the screw rod, improves the safety and increases the service life of the nut.

[0004] Although it reduces the collision of the nut, it has the following deficiencies: the movement of the nut is then in contact with the buffer ring, the buffer ring blocks the movement of the nut, and the continuous rotation of the nut may cause the nut to be stuck with the screw rod, which has no anti-stuck effect. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides an anti-stuck electric actuator assembly to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: an anti-stuck electric actuator assembly, including a reduction gearbox, a drive motor is fixed on the right side of the bottom of the reduction gearbox, the output shaft of the drive motor is fixedly connected with the input shaft of the reduction gearbox, a screw rod is arranged below the reduction gearbox and on the left side of the drive motor, the output shaft of the top of the screw rod is fixedly connected with the output shaft of the reduction gearbox.

[0007] The outer side wall of the screw rod is screwed with a moving nut, two blocking anti-blocking mechanisms are fixed above and below the outer side wall of the screw rod, the blocking anti-blocking mechanism comprises a circular ring, the inner side wall of the circular ring is fixedly connected with the outer side wall of the screw rod, two arc-shaped grooves are formed in the opposite sides of the circular ring, two extrusion grooves are formed in the interior of the circular ring, and two piston rods are slidably connected in the interior of the circular ring.

[0008] The two ends of the piston rod are located in the extrusion grooves and the arc-shaped grooves respectively, a connecting rod is fixed to the side of the piston rod close to the moving nut, the other end of the connecting rod is fixed with a blocking buffer plate, a perforation is formed in the side of the extrusion groove away from the piston rod, a receiving groove is formed in the other side of the interior of the perforation, a piston block is fixed to the end of the piston rod away from the connecting rod, the piston block is located in the interior of the extrusion groove, and two baffle plates are fixed to the top and bottom of the moving nut.

[0009] Preferably, the interior of the extrusion groove is provided with damping oil.

[0010] Preferably, the interior of the receiving groove is fixed with a compression spring, the other end of the compression spring is fixed with a piston plate, and the piston plate is located in the interior of the receiving groove.

[0011] Preferably, the directions of the two blocking anti-blocking mechanisms above and below are opposite.

[0012] Preferably, the driving motor is a DKJ type motor.

[0013] Preferably, the top of the speed reducer is provided with a controller. Beneficial effects

[0014] The anti-blocking electric actuator assembly has the following beneficial effects compared with the prior art:

[0015] 1. The anti-blocking electric actuator assembly is provided with a blocking anti-blocking mechanism, a screw rod is rotated, the screw rod is rotated to move the nut, the nut moves up and down, approaches the blocking anti-blocking mechanism, the baffle plate and the blocking buffer plate are in contact, the blocking buffer plate moves with the connecting rod, the piston rod and the piston block, the piston block extrudes the damping oil, the damping oil enters the interior of the receiving groove through the perforation, the impact of the baffle plate is reduced, and the blocking buffer plate prevents the movement of the baffle nut, thereby preventing blocking.

[0016] 2. The anti-blocking electric actuator assembly is provided with a compression spring and a piston plate, when the nut and the adjacent blocking anti-blocking mechanism are separated, the compression spring pushes the piston plate to move after the baffle plate and the blocking buffer plate are separated, the damping oil in the interior of the receiving groove is extruded and pushed, the damping oil passes through the perforation again and enters the interior of the extrusion groove, and the next time buffering is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structure schematic view of the utility model.

[0018] Fig. 2 It is a structure schematic view of the utility model.

[0019] Fig. 3 It is a structure schematic view of the utility model.

[0020] In the drawing: 1, blocking anti-jamming mechanism; 101, arc-shaped groove; 102, blocking buffer plate; 103, circular ring; 104, extrusion groove; 105, piston rod; 106, perforation; 107, piston plate; 108, piston block; 109, connecting rod; 110, storage groove; 111, compression spring; 2, screw rod; 3, baffle; 4, nut; 5, motor; 6, reduction box; 7, controller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figs. 1-3The utility model provides technical scheme: prevent dead electric actuator assembly, including reduction gearbox 6, the bottom right side of reduction gearbox 6 is fixed with drive motor 5, the output shaft top of drive motor 5 and the input shaft fixed connection of reduction gearbox 6, the below of reduction gearbox 6 is located drive motor 5's left side and is equipped with screw rod 2, the output shaft of screw rod 2 top and the output shaft fixed connection of reduction gearbox 6, the outer wall of screw rod 2 is screwed with moving nut 4, the outer wall of screw rod 2 is located the upper and lower of moving nut 4 and is equipped with two blocking dead mechanism 1, blocking dead mechanism 1 includes circular ring 103, the inner wall of circular ring 103 and the outer wall fixed connection of screw rod 2, two circular ring 103's opposite side all are equipped with two arc grooves 101, the inside of circular ring 103 is equipped with two extrusion grooves 104, the inside of circular ring 103 is slidably connected with two piston rods 105, the both ends of piston rod 105 are located the inside of extrusion groove 104 and arc groove 101 respectively, the side of piston rod 105 close to nut 4 is fixed with connecting rod 109, the other end of connecting rod 109 is fixed with blocking buffer plate 102, the inside of extrusion groove 104 is equipped with perforation 106 far from the side of piston rod 105, the inside other side of perforation 106 is equipped with receiving groove 110, the end of piston rod 105 far from connecting rod 109 is fixed with piston block 108, and piston block 108 is located the inside of extrusion groove 104, and the top and bottom of nut 4 are fixed with two baffle plates 3, and the inside of extrusion groove 104 is equipped with damping oil, so compared with air buffer has performance stability, wide application range, low maintenance cost and other advantages, the direction of two blocking dead mechanism 1 of upper and lower is opposite, so can buffer two different direction baffle 3, drive motor 5 is DKJ type motor, DKJ type motor has simple structure, economic practical, high stability and constant thrust and strong anti-deviation ability and other advantages, the top of reduction gearbox 6 is equipped with controller 7, can receive control system signal, and will be converted into the control instruction of motor speed and steering, realizes automation.

[0023] Further, the inside of receiving groove 110 is fixed with compression spring 111, the other end of compression spring 111 is fixed with piston plate 107, and piston plate 107 is located in the inside of receiving groove 110, so that the damping oil can be extruded back to the original position.

[0024] When working, the driving motor 5 is started, the driving motor 5 drives the screw rod 2 to rotate through the reduction box 6, the screw rod 2 rotates to move the nut 4, the nut 4 moves up and down, approaches the blocking anti-stuck mechanism 1, the baffle 3 and the blocking buffer plate 102 are in contact, the blocking buffer plate 102 moves with the connecting rod 109, the piston rod 105 and the piston block 108, the piston block 108 extrudes the damping oil, the damping oil enters the inside of the receiving groove 110 through the perforation 106, the impact of the baffle 3 is reduced, when the nut 4 and the approaching blocking anti-stuck mechanism 1 are separated, the baffle 3 and the blocking buffer plate 102 are separated, and then the compression spring 111 pushes the piston plate 107 to move, extrudes and pushes the damping oil in the inside of the receiving groove 110, the damping oil passes back into the inside of the extrusion groove 104 again through the perforation 106, and the next time buffering is facilitated.

[0025] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0026] It should be noted that, in the present text, relational terms such as first and second are used merely to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or apparatus. Without more limitations. The statement "comprising a limited element" does not exclude the presence of another identical element in the process, method, article or apparatus including the element.

[0027] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. Anti-stuck electric actuator assembly, comprising a reduction gearbox (6), characterized in that: The bottom right side of the reduction gearbox (6) is fixedly connected with a driving motor (5), the output shaft top of the driving motor (5) is fixedly connected with the input shaft of the reduction gearbox (6), the lower side of the reduction gearbox (6) is located at the left side of the driving motor (5) and is provided with a screw rod (2), and the output shaft top of the screw rod (2) is fixedly connected with the output shaft of the reduction gearbox (6). The outer side wall of the screw rod (2) is screwed with a moving nut (4), the outer side wall of the screw rod (2) is fixedly connected with two blocking anti-blocking mechanisms (1) above and below the moving nut (4), the blocking anti-blocking mechanism (1) comprises a circular ring (103), the inner side wall of the circular ring (103) is fixedly connected with the outer side wall of the screw rod (2), two arc-shaped grooves (101) are formed in the opposite sides of the two circular rings (103), two extrusion grooves (104) are formed in the circular ring (103), and two piston rods (105) are slidably connected in the circular ring (103). The two ends of the piston rod (105) are located in the extrusion grooves (104) and the arc-shaped grooves (101) respectively, a connecting rod (109) is fixedly connected to the side of the piston rod (105) close to the moving nut (4), the other end of the connecting rod (109) is fixedly connected with a blocking buffer plate (102), a perforation (106) is formed in the side of the extrusion groove (104) away from the piston rod (105), a receiving groove (110) is formed in the other side of the perforation (106), a piston block (108) is fixedly connected to the end of the piston rod (105) away from the connecting rod (109), the piston block (108) is located in the extrusion groove (104), and two baffle plates (3) are fixedly connected to the top and bottom of the moving nut (4).

2. The anti-stiction electric actuator assembly of claim 1, wherein: The extrusion groove (104) is provided with damping oil.

3. The anti-stiction electric actuator assembly of claim 2, wherein: The receiving groove (110) is fixedly connected with a compression spring (111), the other end of the compression spring (111) is fixedly connected with a piston plate (107), and the piston plate (107) is located in the receiving groove (110).

4. The anti-stiction electric actuator assembly of claim 3, wherein: The directions of the two blocking anti-blocking mechanisms (1) above and below are opposite.

5. The anti-stiction electric actuator assembly of claim 4, wherein: The driving motor (5) is a DKJ type motor.

6. The anti-stiction electric actuator assembly of claim 5, wherein: The top of the reduction gearbox (6) is provided with a controller (7).

Images