CN112837968A

CN112837968A - A contactor auxiliary interlocking mechanism

Info

Publication number: CN112837968A
Application number: CN202110192354.0A
Authority: CN
Inventors: 陈嘉宁; 张俊; 朱辉
Original assignee: Xi'an Kaitian Railway Electrical Co ltd
Current assignee: Xi'an Kaitian Railway Electrical Co ltd
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2021-05-25

Abstract

The invention discloses an auxiliary interlocking mechanism of a contactor, which comprises a yoke assembly, wherein the top end of the yoke assembly is provided with a linkage assembly, two auxiliary interlocking assemblies are respectively arranged on the bases of the yoke assembly and correspond to the two ends of the linkage assembly, and the top ends of the auxiliary interlocking assemblies are deviated towards the direction far away from the yoke assembly. According to the auxiliary interlocking mechanism of the contactor, the Z-shaped interlocking support is arranged, so that a quick-acting switch can be far away from a yoke assembly during installation, the creepage distance is increased, the voltage resistance problem of a product is solved, and the auxiliary interlocking mechanism of the contactor is convenient for part processing; the arranged Z-shaped wiring insertion sheet enables wiring to be convenient and the electrical insulation distance of the product can be increased; the adjusting gaskets are arranged, so that the interlocking action condition can be increased and decreased in time, the gap between the quick-acting pressure rod and the linkage pressure rod is ensured, and the interlocking reliable action is ensured.

Description

Auxiliary interlocking mechanism of contactor

Technical Field

The invention belongs to the technical field of low-voltage electric appliances, and particularly relates to an auxiliary interlocking mechanism of a contactor.

Background

The auxiliary interlocking mechanism consists of an interlocking support, a quick-acting switch and related parts, is arranged on the contactor, is used for a control module in a contactor control loop, is used as an assembly of the contactor, and is an electric mechanism for realizing the mutual conversion of normally-open contacts and normally-closed contacts by utilizing the external force action of a contactor body. The original structure auxiliary interlocking component used by the existing contactor is inconvenient to install and wire, low in reliability and short in service life.

Disclosure of Invention

The invention aims to provide an auxiliary interlocking mechanism of a contactor, which can effectively improve the working reliability of the contactor.

The technical scheme adopted by the invention is as follows: the utility model provides an auxiliary interlocking mechanism of contactor, includes the yoke subassembly, and the top of yoke subassembly is provided with the linkage subassembly, and the both ends that correspond the linkage subassembly on the base of yoke subassembly respectively are provided with an auxiliary interlocking subassembly, and the top of auxiliary interlocking subassembly all squints to the direction of keeping away from the yoke subassembly.

The present invention is also characterized in that,

the auxiliary interlocking assembly comprises a Z-shaped interlocking support with the bottom end fixed to a yoke assembly base, the yoke assembly is far away from the top end of the interlocking support, a quick-acting switch is fixed to the lower portion of the top end, far away from one side of the yoke assembly, of the interlocking support through a quick-acting fastening screw, a quick-acting pressure rod is arranged in the quick-acting switch, the top end of the quick-acting pressure rod upwards extends out of the interlocking support, and a plurality of Z-shaped wiring insertion pieces are fixed to wiring ends of the quick-acting switch.

The bottom surface of interlocking support is folded back to the direction that thickness increases, and the mounting hole that link up to yoke subassembly base downwards is all seted up at interlocking support's bottom surface both ends, all cooperates in the mounting hole to be provided with support fastening screw.

An adjusting gasket is arranged between the bottom end of the interlocking support and the yoke assembly base.

A visible window is arranged on the middle surface of the interlocking bracket.

Two adjacent surfaces of the interlocking support are mutually vertical, and two adjacent surfaces of the wiring insertion piece are mutually vertical.

The linkage assembly comprises a linkage pressing rod, two ends of the linkage pressing rod are respectively positioned above the middle-speed dynamic pressing rods of the two auxiliary interlocking assemblies, and a linkage block which moves up and down along an opening at the top end of the yoke assembly is connected to the lower portion of the center of the linkage pressing rod through a linkage block fastening screw in a threaded mode.

The invention has the beneficial effects that: according to the auxiliary interlocking mechanism of the contactor, the Z-shaped interlocking support is arranged, so that a quick-acting switch can be far away from a yoke assembly during installation, the creepage distance is increased, the voltage resistance problem of a product is solved, and the auxiliary interlocking mechanism of the contactor is convenient for part processing; the arranged Z-shaped wiring insertion sheet enables wiring to be convenient and the electrical insulation distance of the product can be increased; the adjusting gaskets are arranged, so that the interlocking action condition can be increased and decreased in time, the gap between the quick-acting pressure rod and the linkage pressure rod is ensured, and the interlocking reliable action is ensured.

Drawings

Fig. 1 is a schematic structural view of an auxiliary interlocking mechanism of a contactor according to the present invention;

fig. 2 is a schematic structural view of a yoke assembly in an auxiliary interlock mechanism of a contactor according to the present invention;

fig. 3 is a schematic structural view of an auxiliary interlocking assembly in the auxiliary interlocking mechanism of the contactor according to the present invention;

fig. 4 is a schematic structural view of an interlock bracket in an auxiliary interlock mechanism of a contactor according to the present invention;

fig. 5 is a schematic structural view of a wiring insert in an auxiliary interlocking mechanism of a contactor according to the present invention;

fig. 6 is a schematic view of a contactor employing the auxiliary interlock mechanism of the present invention.

In the figure, 1, a yoke assembly, 2, a linkage pressure lever, 3, a linkage block, 4, an interlocking support, 5, a quick-action switch, 6, a wiring insertion sheet, 7, a quick-action fastening screw, 8, a quick-action pressure lever, 9, an adjusting gasket, 10, a support fastening screw, 11, a linkage block fastening screw, 12, a linkage assembly, 13, an auxiliary interlocking assembly and 14, a visible window are arranged.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention provides an auxiliary interlocking mechanism of a contactor, which comprises a yoke assembly 1, wherein a linkage assembly 12 is arranged at the top end of the yoke assembly 1, two auxiliary interlocking assemblies 13 are respectively arranged on the bases of the yoke assembly 1 corresponding to the two ends of the linkage assembly 12, and the top ends of the auxiliary interlocking assemblies 13 are deviated in the direction far away from the yoke assembly 1.

Supplementary interlocking subassembly 13 includes the fixed Z shape interlocking support 4 of bottom and yoke subassembly 1 base, is provided with adjusting shim 9 between the bottom of interlocking support 4 and the yoke subassembly 1 base, and the bottom surface of interlocking support 4 is to the direction inflection of thickness increase, and the mounting hole that link up to yoke subassembly 1 base downwards is all seted up at the bottom surface both ends of interlocking support 4, all cooperates in the mounting hole to be provided with support fastening screw 10. The top of interlocking support 4 is kept away from yoke subassembly 1, and interlocking support 4 is kept away from the top below yoke subassembly 1 one side and is fixed with the snap switch 5 through quick-action fastening screw 7, is provided with the top in the snap switch 5 and upwards stretches out in the snap lever 8 of interlocking support 4, and the wiring end of snap switch 5 is fixed with a plurality of Z shape wiring inserted sheet 6. The adjacent two sides of the interlocking frame 4 are preferably perpendicular to each other, and the adjacent two sides of the terminal insert 6 are preferably perpendicular to each other. A visible window 14 is arranged on the middle surface of the interlocking bracket 4.

The linkage assembly 12 comprises a linkage compression bar 2, two ends of the linkage compression bar 2 are respectively positioned above the quick-acting compression bars 8 in the two auxiliary interlocking assemblies 13, and a linkage block 3 which moves up and down along an opening at the top end of the yoke assembly 1 is connected to the lower part of the center of the linkage compression bar 2 through a linkage block fastening screw 11 in a threaded manner.

When the linkage assembly 12 works, a linkage pressure rod 2 in the linkage assembly 12 is connected with a contactor contact mechanism, when a contactor coil is powered on and off, the linkage assembly 12 drives the contactor contact mechanism to move up and down, a quick-acting fastening screw 7 fastens a quick-acting switch 5 on an interlocking support 4 to form an auxiliary interlocking assembly 13, four mounting holes are formed in the base of a yoke assembly 1, two auxiliary interlocking assemblies 13 can be fixed at two ends of the yoke assembly 1 by using a support fastening screw 10, when the linkage assembly 12 moves downwards under the action of electromagnetic suction when the contactor coil is powered on, the linkage pressure rod 2 presses a quick-acting pressure rod 8 in the quick-acting switch 5 to move downwards, and then make the reliable break-make of the internal contact of the snap switch 5, the linkage assembly 12 moves upwards when the coil of the contactor cuts off the power supply, the snap switch 5 resets, the lug plate 6 sets up to the Z-type lug plate, install on the snap switch 5 through the screw, the function is used for the auxiliary interlocking mechanism to connect the wire. In order to ensure that the auxiliary interlocking assembly 13 works reliably, the adjusting shim 9 can be arranged at the lower part of the interlocking bracket 4, and the adjusting shim 9 can be increased or decreased according to the working condition of the auxiliary interlocking.

Through the mode, the contactor auxiliary interlocking mechanism can realize the mutual conversion of normally open and normally closed contacts of the auxiliary interlocking component mechanism through the action of external force during use, has high electric stability, and particularly has the following characteristics:

1. two auxiliary interlocking assemblies 13 are arranged on two sides of the yoke assembly 1, so that the motion balance is ensured.

2. The design of the adjusting gasket 9 can increase and decrease in time according to the interlocking action condition, ensure the clearance between the quick-acting pressure lever 8 and the linkage pressure lever 2 and ensure the reliable interlocking action.

3. 8Z-shaped wiring insertion sheets 6 are designed to be installed on the quick-acting switch 5, wiring is convenient, and the electrical insulation distance of a product can be increased.

4. The yoke assembly 1 is provided with four screw mounting holes, is fixed by screws and is simple and convenient to operate.

5. Interlocking support 4 sets up to the Z type shape, and the parts machining of being convenient for sets up four directions through-hole in the middle part of the part and is visual window 14, can alleviate the part quality, and is convenient for observe the inside part equipment condition of part of contactor electro-magnet. The installation position of the interlocking support 4 and the yoke assembly 1 is folded back to increase the thickness of parts, increase the number of turns of the thread of the installation hole, ensure the stable and reliable installation and solve the problem of screw installation. The Z-shaped structure can enable the quick-acting switch 5 to be far away from the yoke assembly 1 during installation, and the creepage distance is increased to solve the problem of voltage resistance of products.

Claims

1. The auxiliary interlocking mechanism of the contactor is characterized by comprising a yoke component (1), wherein a linkage component (12) is arranged at the top end of the yoke component (1), two auxiliary interlocking components (13) are respectively arranged at two ends, corresponding to the linkage component (12), of a base of the yoke component (1), and the top ends of the auxiliary interlocking components (13) are deviated towards the direction far away from the yoke component (1).

2. A contactor auxiliary interlocking mechanism according to claim 1, wherein the auxiliary interlocking assembly (13) comprises a Z-shaped interlocking support (4) with a bottom end fixed with the base of the yoke assembly (1), the top end of the interlocking support (4) is far away from the yoke assembly (1), a quick-acting switch (5) is fixed below the top end of one side of the interlocking support (4) far away from the yoke assembly (1) through a quick-acting fastening screw (7), a quick-acting pressure lever (8) with a top end extending upwards out of the interlocking support (4) is arranged in the quick-acting switch (5), and a plurality of Z-shaped wiring insertion pieces (6) are fixed on a terminal of the quick-acting switch (5).

3. A contactor auxiliary interlocking mechanism according to claim 2, characterized in that the bottom surface of the interlocking bracket (4) is folded back in the direction of increasing the thickness, both ends of the bottom surface of the interlocking bracket (4) are provided with mounting holes penetrating downwards to the base of the yoke assembly (1), and the mounting holes are provided with bracket fastening screws (10) in a matching manner.

4. A contactor auxiliary interlock mechanism according to claim 2, wherein an adjusting shim (9) is provided between the bottom end of the interlock bracket (4) and the base of the yoke assembly (1).

5. A contactor auxiliary interlock mechanism as claimed in claim 2, wherein a visible window (14) is provided in the middle of the interlock support (4).

6. A contactor auxiliary interlock mechanism according to claim 2, wherein adjacent sides of said interlock bracket (4) are perpendicular to each other and adjacent sides of said terminal blade (6) are perpendicular to each other.

7. A contactor auxiliary interlocking mechanism according to claim 2, wherein the linkage assembly (12) comprises a linkage pressing rod (2) with two ends respectively positioned above the quick-acting pressing rod (8) in the two auxiliary interlocking assemblies (13), and a linkage block (3) moving up and down along the top opening of the yoke assembly (1) is connected with the lower center of the linkage pressing rod (2) through a linkage block fastening screw (11) in a threaded manner.