CN212907616U

CN212907616U - Electric operating mechanism

Info

Publication number: CN212907616U
Application number: CN202021565615.6U
Authority: CN
Inventors: 陈敏纯
Original assignee: Individual
Current assignee: Shaanxi Sihan Industrial Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-04-06
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses an electric operating mechanism, comprising a base plate, the top of the base plate is fixedly connected with two support plates, two support plates are jointly and rotatably connected with a rotating shaft, one end of the rotating shaft is fixedly sleeved with a second bevel gear after penetrating through the support plates, an outer coin of the rotating shaft between the two support plates is provided with a threaded part, the outer wall of the threaded part is sleeved with a movable block through threaded fit, the outer wall of the movable block is provided with a poking block, the bottom of the movable block is provided with two support legs, the bottoms of the support legs are fixedly connected with sliding blocks, and the top of the base plate is positioned between the two support plates and is provided with; the utility model discloses a set up motor and multistage gear reduction drive, can provide sufficient drive power in order to realize closing the floodgate to the circuit breaker for dialling the piece, low cost, be convenient for maintain simultaneously, change this part alone when the harm appears in certain part and can connect, reduced electric operating mechanism's maintenance cost greatly.

Description

Electric operating mechanism

Technical Field

The utility model relates to an operating device specifically is an electric operating mechanism.

Background

With the development of science and technology, the trend of automation and intelligence is more and more obvious, and according to the requirement of intellectualization of a power supply network in China, a national power grid company requires the intellectualization of the power supply network.

The traditional circuit breaker only has the functions of manual opening and closing and automatic tripping in overcurrent overload at present, has no function of electric opening and closing, cannot automatically open and close, has low automation degree, and is difficult to meet the requirement of the national power grid company for meeting the intellectualization of a power supply network, and the Chinese utility model with the application number of 201821006251.0 discloses an electric operating mechanism which drives a deflector rod toggle mechanism to realize the automatic transformation of the existing manual circuit breaker while not influencing the manual opening and closing switching-in function of the circuit breaker by arranging a driving mechanism, a coupler, a rotating rod, a displacement block and the like which are in threaded fit connection with the rotating rod, but needs larger driving force for closing the circuit breaker, although the closing mechanism adopts a reducing motor to drive, can provide enough power, but can cause great axial impact force to the rotating rod and the reducing motor in the process of closing the circuit breaker, and directly influences the service life of the rotating rod and the reducing motor, meanwhile, the speed reducing motor is high in cost, difficult to maintain and poor in using effect and needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric operating mechanism to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an electric operating mechanism, includes the bottom plate, two extension boards of top fixedly connected with of bottom plate, two the extension board rotates jointly and is connected with the pivot, the one end of pivot is run through fixed the cup jointing behind the extension board and is had second bevel gear, the outer coin that the pivot is located between two extension boards is provided with screw thread portion, the movable block has been cup jointed through screw-thread fit to the outer wall of screw thread portion, the outer wall of movable block is provided with the stirring piece, the bottom of movable block is provided with two landing legs, the bottom fixedly connected with slider of landing leg, the top of bottom plate is located and has seted up two spouts between two extension boards, slider and spout sliding connection, the top fixedly connected with motor of bottom plate, the transmission shaft of motor is provided with the worm, the top of bottom plate is connected with first driving medium, second driving medium third driving, The second transmission piece is in transmission connection, and the third transmission piece is in transmission connection with the second transmission piece and the second bevel gear.

As a further aspect of the present invention: the first transmission piece comprises a worm wheel, a first gear is coaxially and fixedly connected to the top of the worm wheel, the second transmission piece comprises a second gear, a third gear is coaxially and fixedly connected to the bottom of the second gear, the third transmission piece comprises a fourth gear, and a first bevel gear is coaxially and fixedly connected to the top of the fourth gear.

As a further aspect of the present invention: the worm wheel is meshed with the worm, the first gear is meshed with the second gear, the third gear is meshed with the fourth gear, and the first bevel gear is meshed with the second bevel gear.

As a further aspect of the present invention: the thread of the thread part is a trapezoidal thread with an angle of 30 degrees, one end of the thread part, close to the second bevel gear, is fixedly sleeved with a limiting sleeve, and the side wall of the limiting sleeve abuts against the side wall of the support plate.

As a further aspect of the present invention: the chute is a T-shaped groove.

As a further aspect of the present invention: the worm and the transmission shaft of the motor are in an integrated structure

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up motor and multistage gear reduction drive, can provide sufficient drive power in order to realize closing the floodgate to the circuit breaker for dialling the piece, low cost, be convenient for maintain simultaneously, change this part alone when the harm appears in certain part and can connect, reduced electric operating mechanism's maintenance cost greatly.

2. Through setting up trapezoidal thread's screw thread portion, guaranteed pivot and movable block driven stability, improved the shock resistance of screw thread portion, through setting up the stop collar, can carry out reliable spacing to the axial of pivot, the axial impact force that the pivot received can be absorbed to the cooperation extension board simultaneously, avoids causing the damage to the transmission.

Drawings

Fig. 1 is a schematic structural diagram of an electric operating mechanism.

Fig. 2 is a schematic structural diagram of a first transmission member in an electric operating mechanism.

Fig. 3 is a schematic structural diagram of a sliding chute in an electric operating mechanism.

Wherein, 1, a bottom plate; 11. a support plate; 12. a chute; 2. a motor; 21. a worm; 3. a first transmission member; 31. a worm gear; 32. a first gear; 4. a second transmission member; 41. a second gear; 42. a third gear; 5. a third transmission member; 51. a fourth gear; 52. a first bevel gear; 6. a rotating shaft; 61. a second bevel gear; 62. a threaded portion; 63. a limiting sleeve; 7. a movable block; 71. a shifting block; 72. a support leg; 73. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1 to 3, in an embodiment of the present invention, an electric operating mechanism includes a bottom plate 1, two support plates 11 are fixedly connected to a top of the bottom plate 1, the two support plates 11 are jointly and rotatably connected to a rotating shaft 6, a second bevel gear 61 is fixedly sleeved after one end of the rotating shaft 6 runs through the support plates 11, an outer coin of the rotating shaft 6 between the two support plates 11 is provided with a threaded portion 62, an outer wall of the threaded portion 62 is sleeved with a movable block 7 through a threaded fit, an outer wall of the movable block 7 is provided with a poking block 71, a bottom of the movable block 7 is provided with two support legs 72, a bottom of the support legs 72 is fixedly connected with a slider 73, two sliding grooves 12 are disposed between the two support plates 11 at a top of the bottom plate 1, the slider 73 is slidably connected with the sliding grooves 12, a top of the bottom plate 1 is fixedly connected with, Second transmission piece 4 and third transmission piece 5, the first transmission piece 3 is connected with the worm 21 and the second transmission piece 4 in a transmission way, and the third transmission piece 5 is connected with the second transmission piece 4 and the second bevel gear 61 in a transmission way.

Further, the first transmission member 3 includes a worm wheel 31, a first gear 32 is coaxially and fixedly connected to the top of the worm wheel 31, the second transmission member 4 includes a second gear 41, a third gear 42 is coaxially and fixedly connected to the bottom of the second gear 41, the third transmission member 5 includes a fourth gear 51, and a first bevel gear 52 is coaxially and fixedly connected to the top of the fourth gear 51.

In order to ensure that the motor 2 can drive the shaft 6 effectively, the worm wheel 31 is meshed with the worm 21, the first gear 32 is meshed with the second gear 41, the third gear 42 is meshed with the fourth gear 51, and the first bevel gear 52 is meshed with the second bevel gear 61.

The screw thread of screw thread portion 62 is 30 trapezoidal threads, and the wearability is good, and intensity is high, and centering nature is good, and the clearance is adjustable, and processing property is good, and the fixed stop collar 63 that has cup jointed of one end of screw thread portion 62 that is close to second bevel gear 61, and the lateral wall of stop collar 63 offsets with the lateral wall of extension board 11, and the axial impact force that pivot 6 received when closing the floodgate can effectively be absorbed through the cooperation of stop collar 63 and extension board 11, avoids transmission part to receive the damage.

The sliding groove 12 is a T-shaped groove, and the trapezoidal groove can limit the sliding block 73, so that the movable block 7 can move through threaded fit.

The worm 21 is the integrated into one piece structure with the transmission shaft of motor 2, and the intensity of integrated into one piece structure is higher and reduces unnecessary internal energy loss simultaneously, improves transmission efficiency.

The utility model discloses a theory of operation is:

the worm 21 is driven to rotate by the motor 2 to drive the worm wheel 31 to rotate, the worm wheel 31 drives the first gear 32 to rotate, so that the second gear 41 and the third gear 42 rotate simultaneously, the third gear 42 drives the first bevel gear 52 to rotate by the fourth gear 51 meshed with the third gear, and then drives the rotating shaft 6 to rotate by the second bevel gear 61 meshed with the first bevel gear 52, so that the movable block 7 moves along the outer wall of the threaded part 62 under the limiting effect of the chute 12 and the sliding block 73, so as to drive the shifting block 71 to realize the opening and closing of the circuit breaker, in the process of switching on and off, the axial impact force on the rotating shaft 6 can be effectively absorbed through the matching of the limiting sleeve 63 and the support plate 11, the transmission part is prevented from being damaged, and when the transmission part is damaged and needs to be maintained, only the corresponding damaged part needs to be replaced, the whole driving system does not need to be scrapped, and the maintenance cost of the electric operating mechanism is greatly reduced.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An electric operating mechanism comprising a base plate (1), characterized in that: the top of the bottom plate (1) is fixedly connected with two support plates (11), the two support plates (11) are connected with a rotating shaft (6) in a rotating mode, one end of the rotating shaft (6) penetrates through the support plates (11) and then is fixedly sleeved with a second bevel gear (61), the outer wall of the rotating shaft (6) between the two support plates (11) is provided with a threaded portion (62), the outer wall of the threaded portion (62) is sleeved with a movable block (7) in a threaded fit mode, the outer wall of the movable block (7) is provided with a poking block (71), the bottom of the movable block (7) is provided with two support legs (72), the bottom of each support leg (72) is fixedly connected with a sliding block (73), the top of the bottom plate (1) is positioned between the two support plates (11) and is provided with two sliding grooves (12), the sliding block (73) is in sliding connection with the sliding grooves, the transmission shaft of motor (2) is provided with worm (21), the top of bottom plate (1) is connected with first driving medium (3), second driving medium (4) third driving medium (5) through the round pin axle rotation, first driving medium (3) and worm (21), second driving medium (4) transmission are connected, third driving medium (5) are connected with second driving medium (4), second bevel gear (61) transmission.

2. An electric operating mechanism according to claim 1, characterized in that: the first transmission piece (3) comprises a worm wheel (31), a first gear (32) is coaxially and fixedly connected to the top of the worm wheel (31), the second transmission piece (4) comprises a second gear (41), a third gear (42) is coaxially and fixedly connected to the bottom of the second gear (41), the third transmission piece (5) comprises a fourth gear (51), and a first bevel gear (52) is coaxially and fixedly connected to the top of the fourth gear (51).

3. An electric operating mechanism according to claim 2, characterized in that: the worm wheel (31) is meshed with the worm (21), the first gear (32) is meshed with the second gear (41), the third gear (42) is meshed with the fourth gear (51), and the first bevel gear (52) is meshed with the second bevel gear (61).

4. An electric operating mechanism according to claim 1, characterized in that: the thread of the thread part (62) is a trapezoidal thread with an angle of 30 degrees, one end of the thread part (62) close to the second bevel gear (61) is fixedly sleeved with a limiting sleeve (63), and the side wall of the limiting sleeve (63) is abutted to the side wall of the support plate (11).

5. An electric operating mechanism according to claim 1, characterized in that: the sliding groove (12) is a T-shaped groove.

6. An electric operating mechanism according to claim 1, characterized in that: the worm (21) and a transmission shaft of the motor (2) are of an integrally formed structure.