Mechanical interlocking device of connecting rod type contactor

Abstract

The utility model relates to the technical field of electric appliance switches, in particular to a mechanical interlocking device of a connecting rod type contactor. The interlocking device comprises an ascending interlocking fixed bent plate connected with the bottom of an ascending contactor, a descending interlocking fixed bent plate connected with the bottom of a descending contactor, and an interlocking rod connected between the ascending interlocking fixed bent plate and the descending interlocking fixed bent plate, the interlocking rod is connected with the ascending interlocking fixed bending plate through an upper rotating pin shaft, the upper end of the interlocking rod is provided with an interlocking spacing adjusting bolt screwed in along a center hole of the interlocking rod, and the interlocking spacing adjusting bolt is connected with the upper rotating pin shaft in an abutting mode in the interlocking rod. And the upper end of the interlocking rod is provided with an interlocking spacing adjusting bolt, so that the tightness of mechanical interlocking constraint of the contactor and the vertical spacing of the contactor can be adjusted. The size is small, the function is large, installation is convenient, and normal use can be achieved after one-time adjustment. The action is reliable, the acting effect is obvious and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric appliance switch, namely a connecting rod formula contactor mechanical interlock device. BACKGROUND

[0002] In the prior art, the contactor is a main control component in the application field of electric control technology, and has a wide application range, from the control of large-scale on-site electric control equipment to the function control of small-sized circuit boards, and the contactor is used as a receiving and control component, and can be used in the application of a large number of electric lines and functions, and the application quantity and the position task play a crucial role. The forward and reverse control of the electric control equipment is an essential application control mode in various reversible transmission systems, and is used to realize the forward and reverse functions of the motor, and the forward and reverse functions of the motor are mainly realized by the three-phase power supply through the contactor attraction work, that is, two contactors (forward and reverse) are separately attracted and work, and the power supply is sent to the motor through commutation to realize the forward and reverse rotation of the motor. Since any phase commutation is reversed, the commutation control of the motor by the two contactors is realized, and since the phase sequence is asymmetric, the phase sequence short-circuit explosion fault is caused after the contactor is attracted, and the transformer substation is easily tripped in serious cases, which seriously affects the production. SUMMARY

[0003] The utility model aims at the above-mentioned and provides a connecting rod formula contactor mechanical interlock device which is reasonable in structure and safe to use.

[0004] The technical solution of the utility model is as follows: a connecting rod formula contactor mechanical interlock device, which comprises an upward interlock fixed bent plate connected with the bottom of an upward contactor, a downward interlock fixed bent plate connected with the bottom of a downward contactor, and an interlock rod connected between the upward interlock fixed bent plate and the downward interlock fixed bent plate; the interlock rod is connected with the upward interlock fixed bent plate through an upward rotating pin shaft, the upper end of the interlock rod has an interlock spacing adjustment bolt screwed into the center hole of the interlock rod, and the interlock spacing adjustment bolt is in abutment with the upward rotating pin shaft in the interlock rod.

[0005] In the above-mentioned scheme, the following is further included:

[0006] The upper end of the center hole of the interlock rod has an adjustment bolt locking cap for screwing in the interlock spacing adjustment bolt.

[0007] The contactor is a CJ12 type contactor.

[0008] The advantages of this utility model are: 1. An interlocking spacing adjustment bolt is provided at the upper end of the interlocking rod, which allows for adjustment of the tightness of the mechanical interlocking constraint of the contactor and the vertical spacing between the contactors. 2. This linkage-type interlocking structure is applicable to all levels of the CJ12 series contactors. 3. Small size, high function, easy installation, and normal use after one adjustment. 4. Reliable operation, obvious effect, and strong practicality. 5. The mechanical interlocking components are simple to manufacture; steel plates do not need to be purchased, and can be made using scrap iron metal strips.

[0009] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0010] Figure 1 This is a simplified structural diagram of the present invention.

[0011] Figure 2 yes Figure 1 A simplified diagram of the right-side structure.

[0012] Figure 3 This is a simplified diagram of the interlocking rod structure. Detailed Implementation

[0013] See Figure 1 , 2 3. The component names are as follows: 1. Upward interlocking fixed bend plate, 2. Interlocking rod, 3. Downward interlocking fixed bend plate, 4. Static magnet, 5. Attraction wire magnetic coil, 6. Upper moving magnet, 7. Lower moving magnet, 8. Upward contactor, 9. Downward contactor, 10. Contactor shaft support frame, 11. First arrow direction, 12. Fifth arrow direction, 13. Second arrow direction, 14. Third arrow direction, 15. Upper rotating pin, 16. Lower rotating pin, 17. Interlocking spacing adjusting bolt, 18. Fourth arrow direction, 19. Sixth arrow direction, 20. Adjusting bolt locking cap.

[0014] See Figure 1 , 2 3. A mechanical interlocking device for a linkage-type contactor, comprising an upward interlocking fixing plate 1 connected to the bottom of an upward contactor 8, a downward interlocking fixing plate 3 connected to the bottom of a downward contactor 9, and an interlocking rod 2 connected between the upward interlocking fixing plate 1 and the downward interlocking fixing plate 3. The interlocking rod 2 is connected to the upward interlocking fixing plate 1 by an upper rotating pin 15 passing through it. The upper end of the interlocking rod 2 has an interlocking spacing adjusting bolt 17 that is screwed downward along the center hole of the interlocking rod 2. The upper end of the center hole has an adjusting bolt locking cap 20 for screwing in the interlocking spacing adjusting bolt 17. The interlocking spacing adjusting bolt 17 and the upper rotating pin 15 are engaged inside the interlocking rod 2 to position the upper rotating pin 15.

[0015] Working principle: 1, when the rising contactor 8 of the attractive line magnetic force circle 5 is powered on, the upper moving magnet 6 is attracted to the first arrow direction 11, and is attached to the static magnet 4. Because the upper moving magnet 6 is attracted to the first arrow direction 11, the rising interlocking fixed bending plate 1 (the elbow is installed outward) is also moved to the first arrow direction 11, and at the same time, the interlocking rod (2) is pulled to the second arrow direction 13 through the upper rotating pin 15. After pulling, the interlocking rod (2) is pulled to the second arrow direction 13, and the lower moving magnet 7 is pulled upward by the lower rotating pin 16, so that the lower moving magnet 7 is forced to the fourth arrow direction 18, so as to realize that the lower contactor 9 cannot be operated when the rising contactor 8 is operated.

[0016] 2, when the rising contactor 8 of the attractive line magnetic force circle 5 is powered on, the upper moving magnet 6 is attracted to the first arrow direction 11, and is attached to the static magnet 4. Because the upper moving magnet 6 is attracted to the first arrow direction 11, the rising interlocking fixed bending plate 1 (the elbow is installed outward) is also moved to the first arrow direction 11, and at the same time, the interlocking rod (2) is pulled to the second arrow direction 13 through the upper rotating pin 15. After pulling, the interlocking rod (2) is pulled to the second arrow direction 13, and the lower moving magnet 7 is pulled upward by the lower rotating pin 16, so that the lower moving magnet 7 is forced to the fourth arrow direction 18, so as to realize that the lower contactor 9 cannot be operated when the rising contactor 8 is operated.

[0017] Function: 1, when the rising contactor 8 of the attractive line magnetic force circle 5 is powered on, the upper moving magnet 6 is attracted to the first arrow direction 11, and is attached to the static magnet 4. Because the upper moving magnet 6 is attracted to the first arrow direction 11, the rising interlocking fixed bending plate 1 (the elbow is installed outward) is also moved to the first arrow direction 11, and at the same time, the interlocking rod (2) is pulled to the second arrow direction 13 through the upper rotating pin 15. After pulling, the interlocking rod (2) is pulled to the second arrow direction 13, and the lower moving magnet 7 is pulled upward by the lower rotating pin 16, so that the lower moving magnet 7 is forced to the fourth arrow direction 18, so as to realize that the lower contactor 9 cannot be operated when the rising contactor 8 is operated.

[0018] 2, the degree of adjustment of the interlocking distance adjusting bolt 17 is 60mm, and the size of the distance is made in advance according to the actual position of the two contactors.

[0019] 3, the adjustment of the interlocking distance adjusting bolt 17 is 60mm, and the size of the distance is made in advance according to the actual position of the two contactors.

[0020] The above description is only a specific embodiment of the present application, and various examples do not limit the essential content of the present application.

Claims

1. A mechanical interlocking device for a linkage-type contactor, characterized in that... It comprises the ascending interlock fixed bent plate (1) connected with the bottom of the ascending contactor (8), the descending interlock fixed bent plate (3) connected with the bottom of the descending contactor (9) and the interlock rod (2) connected between the ascending interlock fixed bent plate (1) and the descending interlock fixed bent plate (3); the interlock rod (2) is connected with the ascending interlock fixed bent plate (1) through the upper rotating pin shaft (15), the upper end of the interlock rod (2) is provided with the interlock distance adjusting bolt (17) screwed into the center hole of the interlock rod (2), and the interlock distance adjusting bolt (17) is in top contact with the upper rotating pin shaft (15) in the interlock rod (2).

2. A mechanical interlock for a link-type contactor as defined in claim 1, wherein The upper end of the center hole of the interlock rod (2) is provided with the adjusting bolt locking cap (20) for screwing in the interlock distance adjusting bolt (17).

3. A mechanical interlock for a link-type contactor according to claim 1 or 2, wherein The contactor is the CJ12 type contactor.

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