CN104505315A

CN104505315A - Trip executing mechanism

Info

Publication number: CN104505315A
Application number: CN201410845565.XA
Authority: CN
Inventors: 宋和明; 马海军
Original assignee: JINGJIANG HAIYUAN NONFERROUS METAL MATERIAL CO Ltd
Current assignee: JINGJIANG HAIYUAN NONFERROUS METAL MATERIAL CO Ltd
Priority date: 2014-12-31
Filing date: 2014-12-31
Publication date: 2015-04-08
Anticipated expiration: 2034-12-31
Also published as: CN104505315B

Abstract

The invention discloses a trip executing mechanism. A support is of a C-shaped structure, each of a front plate and a rear plate of the support is special-shaped plate, the front plate and the rear plate are parallel and connected through a left side plate, an included angle between the front plate and the left side plate is 90 degrees, the lower end of the front plate is in the shape of a step, a supporting plate is arranged in the middle section of the step, the supporting plate backwards extends in a manner that the supporting plate and the front plate form a 90-degree angle, a rotating shaft axial hole is formed below the right portion of the front plate, a rightward open groove is formed above the rotating shaft axial hole, a top plate is arranged above the left portion of the rear plate and forwards extends in a manner that the top plate and the rear plate form a 90-degree angle, the rotating shaft axial hole of the front plate and that of the rear plate are identical in diameter and coaxial, a fixing plate bayonet of the front plate and that of the rear plate are identical in shape and size, and a roller shaft is arranged on the front end face of the right side of a cross plate in the middle of a pull rod. The support is integrally formed through sheet-metal working, so that the trip executing mechanism is compact in structure and reliable in working, production cost is lowered, friction force of a position where the support contacts with the pull rod is reduced, and a circuit breaker can be timely pulled for switching off.

Description

Tripping actuating mechanism

Technical field

The invention belongs to circuit breaker accessory field, particularly a kind of tripping actuating mechanism.

Background technology

At present, the tripping function of the Thermomagnetic type residual current circuit breaker of circuit breaker and band reclosing function, main dependence has been come by tripping coil and trip circuit.When protected circuit is by normal current, the electromagnetic force of the electromagnet generation of described circuit breaker is less than the spring tension as reaction force, and armature can not be inhaled dynamic by electromagnet, circuit breaker keeps normal operation; And when occurring in circuit that electric current exceedes the overload situations of the several times of normal current; or circuit be short-circuited fault time; the electromagnetic force of the electromagnet generation of circuit breaker is greater than the spring tension as reaction force; armature is inhaled dynamic by electromagnet; relay main contact discharges; electric current under the effect of tripping spring separately, in line disconnection, thus play short-circuit protection effect.

The patent No. is that the Chinese patent of CN201320270327.1 discloses a kind of Thermomagnetic type residual current circuit breaker tripping mechanism, is mated form by tripping controller and tripping actuating device.Tripping controller primarily of low-voltage dc power supply, coil, diode, CMOS tube, resistance, electric capacity, single-chip microcomputer form; Tripping actuating device primarily of pull bar, armature, armature spring, stator, coil, permanent magnet, iron core, energy-stored spring, snap close and latch spring composition, and is arranged in yoke compactly, forms a magnetic loop.In use there is following defect in this patent: 1), holder part part is many, installs complicated; 2), the frictional force of support and drag link mechanism contact site is large, there will be the phenomenon that can not pull breaker open operation in time.

Summary of the invention

The object of the invention is to solve the problems of the technologies described above.

The object of the present invention is achieved like this: tripping actuating mechanism, and comprise driving mechanism, trigger mechanism, secondary force enlarger, driving mechanism is rack-mount; Trigger mechanism comprises dynamic iron core, torsion spring, rotating shaft, base plate; Secondary force enlarger comprises pull bar, energy-stored spring, pull bar is ┏ ┛ type structure, it is characterized in that: described support is C shape structure, and header board and the rear plate of support are sketch plate, front and rear panels are parallel and connected by left plate, and the angle of header board and left plate is 90 degree; The lower end of header board is notch cuttype, and notch cuttype interlude arranges supporting plate, and supporting plate becomes an angle of 90 degrees to stretch out backward with header board; Be provided with rotating shaft axis hole below the right part of header board, above rotating shaft axis hole, be provided with open slot to the right; Fixed head bayonet socket is provided with above the right part of header board; Be provided with top board above the left part of rear plate, top board becomes an angle of 90 degrees to stretch out forward with rear plate.

The rotating shaft axis hole of described header board is identical with the rotating shaft shaft hole diameter of rear plate and on the same axis.

The shape of the fixed head bayonet socket of described header board and the fixed head bayonet socket of rear plate and measure-alike.

Described pull bar lower side panel front portion is provided with the barb stretched out to the right, and what barb is provided with into an angle of 90 degrees layout stirs face, and face of stirring contacts with the slide block of dynamic iron core.

In the middle of described pull bar, the right side front face of transverse slat is provided with roller shaft, and roller shaft is multidiameter, and roller shaft front end is provided with shaft block ring groove, and roller shaft rear end is welded with pull bar.

Described roller shaft rear end is connected with stay-bolt.

Gap is left between the notch of riser and rear plate on the right side of described pull bar

Support of the present invention is one-body molded through panel beating, compact conformation, and reliable operation reduces production cost; Reduce the frictional force of support and pull bar contact site, simple and practical, breaker open operation can be pulled in time, apply and there is good economic and social benefit.

Accompanying drawing explanation

Fig. 1 is front view of the present invention.

Fig. 2 is right view of the present invention.

Fig. 3 is upward view of the present invention.

Fig. 4 is driving mechanism cutaway view of the present invention.

Fig. 5 is rack assumption diagram of the present invention.

Fig. 6 is the vertical view of Fig. 5.

Fig. 7 is Tiebar structure figure of the present invention.

In figure: 1, support, 2, permanent magnet; 3. metal partion (metp) A; 4. yoke; 5. drive coil; 6. axle; 7. fixed head; 8. back-moving spring; 9. little spring; 10. metal partion (metp) B; 11. dynamic iron cores; 12. torsion springs; 13. rotating shafts; 14. base plates; 15. energy-stored springs; 16. pull bars; 101. left plate; 102. header board; 103. supporting plate; 104. rotating shaft axis holes; 105. open slot; Plate after 106.; 107. fixed head bayonet sockets; 108. top board; 1601. roller shaft; 1602. stir face.

Embodiment

Below in conjunction with accompanying drawing, the invention will be further described, but not as limitation of the present invention:

Tripping actuating mechanism, comprises driving mechanism, trigger mechanism, secondary force enlarger, and driving mechanism is arranged on support 1; Trigger mechanism comprises dynamic iron core 11, torsion spring 12, rotating shaft 13, base plate 14; Secondary force enlarger comprises pull bar 16, energy-stored spring 15, pull bar 16 is ┏ ┛ type structure, described support 1 is C shape structure, header board 102 and the rear plate 106 of support 1 are sketch plate, header board 102 is parallel with rear plate 106 and be connected by left plate 101, and header board 102 is 90 degree with the angle of left plate 101; The lower end of header board 102 is notch cuttype, and notch cuttype interlude arranges supporting plate 103, and supporting plate 103 stretches out backward with header board 102 one-tenth an angle of 90 degrees; Be provided with rotating shaft axis hole 104 below the right part of header board 102, above rotating shaft axis hole 104, be provided with open slot 105 to the right; Fixed head bayonet socket 107 is provided with above the right part of header board 102; Be provided with top board 108 above the left part of rear plate 106, top board 108 stretches out forward with rear plate 106 one-tenth an angle of 90 degrees; The rotating shaft axis hole 104 of described header board 102 is identical with rotating shaft axis hole 104 diameter of rear plate 106 and on the same axis; The shape of the fixed head bayonet socket 107 of described header board 102 and the fixed head bayonet socket 107 of rear plate 106 and measure-alike; Described pull bar 16 lower side panel front portion is provided with the barb stretched out to the right, barb is provided with into the face of stirring 1602 that an angle of 90 degrees is arranged, stirs face 1602 and contact with the slide block of dynamic iron core 11; The right side front face of the middle transverse slat of described pull bar 16 is provided with roller shaft 1601, and roller shaft 1601 is multidiameter, and roller shaft 1601 front end is provided with shaft block ring groove, and roller shaft 1601 rear end is welded with pull bar 16; Described roller shaft 1601 rear end is connected with pull bar 16 bolt; Gap is left between the notch of riser and rear plate 106 on the right side of described pull bar 16.

During concrete enforcement, driving mechanism as shown in Figure 4, permanent magnet 2, metal partion (metp) A3 is from left to right disposed with above support 1, metal partion (metp) A3 center is provided with axle 6, axle 6 is from left to right disposed with drive coil 5, fixed head 7, little spring 9, metal partion (metp) B10, the outer ring of drive coil 5 is provided with yoke 4, is provided with back-moving spring 8 between fixed head 7 and metal partion (metp) B10.

Trigger mechanism as shown in Figure 2, comprise dynamic iron core 11, torsion spring 12, rotating shaft 13, base plate 14, rotating shaft 13 is from front to back successively through the rotating shaft axis hole 104 of the rotating shaft axis hole 104 of header board 102, dynamic iron core 11, torsion spring 12, rear plate 106, install inside base plate 14, the notch at two ends is corresponding with the two ends of rotating shaft 13, then the metal hanger of torsion spring 12 front end is penetrated the hole of dynamic iron core 11, the metal hanger of torsion spring 12 rear end blocks the rear plate of base plate 14 through the breach in rear plate 106 lower right corner.

As shown in Figure 3, comprise pull bar 16, energy-stored spring 15, energy-stored spring 15 is arranged between the left plate of base plate 14 and the lower side panel right part of pull bar 16 secondary force enlarger.

Specific embodiment one, roller shaft 1601 rear end weld with pull bar 16, roller shaft 1601 are provided with bearing or roller, and bearing or roller can roll in the open slot 105 on header board 102.

Specific embodiment two, roller shaft 1601 rear end are connected with pull bar 16 bolt, roller shaft 1601 are provided with bearing or roller, and bearing or roller can roll in the open slot 105 on header board 102.

Specific embodiment three, on forward and backward of the open slot 105 of header board 102, arrange gib block, the bearing on pair roller axle 1601 or roller guiding, prevent sideslip.

When normally working, permanent magnet 2 overcomes the compression stress of back-moving spring 8, makes iron core 11 be pull-in on axle 6 right side, when there is big current in working line, controller can send pulse voltage to drive coil 5, now drive coil 5 can be energized and obtain opposing magnetic field power, thus slacken the attraction of permanent magnet 2 pairs of axles 6, return after making axle 6 promote dynamic iron core 11 under the effect of the elastic force of back-moving spring 8, dynamic iron core 11 touches puts torsion spring 12, pull bar 16 departs from by the buckle side that carries of torsion spring 12 metal hanger, energy-stored spring 15 releases energy and drives pull bar 16 to move, the bearing that roller shaft 1601 is installed or roller move along the open slot 105 on header board 102, return after the drag hook of pull bar 16 pulls breaker open operation, thus play the effect of intelligent protection circuit breaker.

Obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.

Claims

1. tripping actuating mechanism, comprises driving mechanism, trigger mechanism, secondary force enlarger, and driving mechanism is arranged on support (1); Trigger mechanism comprises dynamic iron core (11), torsion spring (12), rotating shaft (13), base plate (14); Secondary force enlarger comprises pull bar (16), energy-stored spring (15), pull bar (16) is ┏ ┛ type structure, it is characterized in that: described support (1) is C shape structure, header board (102) and the rear plate (106) of support (1) are sketch plate, header board (102) is parallel with rear plate (106) and is connected by left plate (101), and the angle of header board (102) and left plate (101) is 90 degree; The lower end of header board (102) is notch cuttype, and notch cuttype interlude arranges supporting plate (103), and supporting plate (103) becomes an angle of 90 degrees to stretch out backward with header board (102); Be provided with rotating shaft axis hole (104) below the right part of header board (102), rotating shaft axis hole (104) top is provided with open slot (105) to the right; Fixed head bayonet socket (107) is provided with above the right part of header board (102); Be provided with top board (108) above the left part of rear plate (106), top board (108) becomes an angle of 90 degrees to stretch out forward with rear plate (106).

2. tripping actuating mechanism according to claim 1, is characterized in that: the rotating shaft axis hole (104) of described header board (102) is identical with rotating shaft axis hole (104) diameter of rear plate (106) and on the same axis.

3. tripping actuating mechanism according to claim 1, is characterized in that: the shape of the fixed head bayonet socket (107) of described header board (102) and the fixed head bayonet socket (107) of rear plate (106) and measure-alike.

4. tripping actuating mechanism according to claim 1, it is characterized in that: described pull bar (16) lower side panel front portion is provided with the barb stretched out to the right, barb is provided with into the face of stirring (1602) that an angle of 90 degrees is arranged, stirs face (1602) and contact with the slide block of dynamic iron core (11).

5. tripping actuating mechanism according to claim 1, it is characterized in that: in the middle of described pull bar (16), the right side front face of transverse slat is provided with roller shaft (1601), roller shaft (1601) is multidiameter, roller shaft (1601) front end is provided with shaft block ring groove, and roller shaft (1601) rear end is welded with pull bar (16).

6. tripping actuating mechanism according to claim 5, is characterized in that: described roller shaft (1601) rear end is connected with pull bar (16) bolt.

7. tripping actuating mechanism according to claim 1, is characterized in that: leave gap between the notch of described pull bar (16) right side riser and rear plate (106).