CN213781949U - Circuit breaker over-travel spring compression tool - Google Patents
Circuit breaker over-travel spring compression tool Download PDFInfo
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- CN213781949U CN213781949U CN202022774533.9U CN202022774533U CN213781949U CN 213781949 U CN213781949 U CN 213781949U CN 202022774533 U CN202022774533 U CN 202022774533U CN 213781949 U CN213781949 U CN 213781949U
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- spring
- end plate
- circuit breaker
- screw
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Abstract
The utility model discloses a circuit breaker over-travel spring compression tool, which comprises a supporting base, wherein the supporting base comprises a bottom plate, a left end plate and a right end plate which are fixed into a whole; a screw hole in the middle of the side plate is engaged with a screwing screw, the top end of the screwing screw is provided with a screw head, and the screw head is abutted against the left end plate; the middle of the slot clamping frame is clamped with an over-travel spring push rod clamp through two round slots; the vacuum tube assembled with the overtravel spring is placed between the left end plate and the right end plate of the supporting base, an overtravel spring clamping sleeve is arranged at the end part of the overtravel spring, and the overtravel spring push rod is clamped into a circular hole of the overtravel spring clamping sleeve. The compression amount of the over travel spring can be flexibly adjusted according to the technical requirements of the circuit breaker, so that the pre-pressure of the contact is adjusted, the larger pre-pressure of the contact is ensured, the bounce time of the contact is reduced, and the overall performance of the circuit breaker is ensured.
Description
Technical Field
The utility model relates to a vacuum circuit breaker especially relates to a circuit breaker over travel spring compression frock.
Background
The electric locomotive is provided with the vacuum circuit breaker which is provided with the over travel spring and used for compressing the moving contact and the static contact after the circuit breaker is closed, so that the electric through-flow performance of the vacuum circuit breaker is ensured.
When the vacuum circuit breaker is assembled in a factory, the over travel spring needs to be pre-compressed, the elastic coefficient of the over travel spring is large, manpower cannot be compressed in place, and the compression amount of the over travel spring cannot be controlled.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a circuit breaker over travel spring compression frock.
The utility model aims at realizing through the following technical scheme:
the utility model discloses a circuit breaker over travel spring compression frock, including supporting the base, the support base is including fixing bottom plate, left end plate and the right-hand member board in an organic whole, and after two pull rods passed left end plate and right-hand member board, its left end was connected with the curb plate, and the right-hand member was connected with the draw-in groove frame;
a screw hole in the middle of the side plate is engaged with a screwing screw, the top end of the screwing screw is provided with a screw head, and the screw head abuts against the left end plate;
an over-travel spring push rod clamp is clamped in the middle of the clamping groove frame through two circular clamping grooves;
the vacuum tube with the overtravel spring assembled is placed between the left end plate and the right end plate of the supporting base, the bottom of the vacuum tube abuts against the left end plate, an overtravel spring clamping sleeve is arranged at the end part of the overtravel spring, and the overtravel spring push rod is clamped into a circular hole of the overtravel spring clamping sleeve.
By the above-mentioned the technical scheme provided by the utility model, the embodiment of the utility model provides a circuit breaker spring compression frock of overtravel can adjust the spring compression volume of overtravel according to circuit breaker technical requirement is nimble to adjust contact precompression, guarantee the great precompression of contact, reduce contact spring time simultaneously, guarantee circuit breaker wholeness ability.
Drawings
Fig. 1 is a schematic structural view of a circuit breaker over-travel spring compression tool provided by an embodiment of the present invention;
FIG. 2 is a schematic view of an embodiment of the present invention;
fig. 3 and 4 are schematic external and sectional views of an assembly of a screwing screw and a screw head according to an embodiment of the present invention.
In the figure:
1. the support base, 1a, support base left end board, 1b, support base right end board, 1c, support base bottom plate, 2, pull rod, 3, over travel spring push rod, 4, draw-in groove frame, 5, curb plate, 6, the screw rod of screwing, 7, screw head, 8, vacuum tube, 9, over travel spring cutting ferrule.
Detailed Description
Embodiments of the present invention will be described in further detail below. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
The utility model discloses a circuit breaker over travel spring compression frock, the concrete implementation mode of its preferred is:
the clamping groove support comprises a support base, wherein the support base comprises a bottom plate, a left end plate and a right end plate which are fixed into a whole, the left end of each pull rod is connected with a side plate after the two pull rods penetrate through the left end plate and the right end plate, and the right end of each pull rod is connected with a clamping groove frame;
a screw hole in the middle of the side plate is engaged with a screwing screw, the top end of the screwing screw is provided with a screw head, and the screw head abuts against the left end plate;
an over-travel spring push rod clamp is clamped in the middle of the clamping groove frame through two circular clamping grooves;
the vacuum tube with the overtravel spring assembled is placed between the left end plate and the right end plate of the supporting base, the bottom of the vacuum tube abuts against the left end plate, an overtravel spring clamping sleeve is arranged at the end part of the overtravel spring, and the overtravel spring push rod is clamped into a circular hole of the overtravel spring clamping sleeve.
The right end of the pull rod is screwed into the screw hole of the clamping groove frame and is screwed tightly, and the left end of the pull rod is connected with the side plate through a nut and a spring pad.
The top end of the screwing screw is connected with the screw head in a circumferential unconstrained manner.
The utility model discloses a circuit breaker spring compression frock of overtravel can be according to the nimble adjustment spring compression of circuit breaker technical requirement to the great pre-pressure of adjustment contact guarantees the great pre-pressure of contact, reduces contact spring time simultaneously, and guarantee circuit breaker wholeness ability is the essential frock equipment of vacuum circuit breaker assembly.
The principle of the utility model is that:
the support base is used for placing the vacuum tube of having assembled the over travel spring, and two pull rods pass support base, curb plate and draw-in groove frame, screw in the middle of the screw of screwing the curb plate, screw end portion screw-in screw head, and the over travel spring push rod inserts the cutting ferrule circular hole of vacuum tube tip compression over travel spring, two draw-in groove chucking push rods in the middle of the draw-in groove frame, and the pull rod twists draw-in groove frame both ends screw and screws up. The supporting base is used as a fixed reference, the screwing screw rod is screwed by a wrench, the screw head at the end part of the screwing screw rod is in contact with the supporting base and is limited, the screwed side plate penetrates through the screwing screw rod and is far away from the supporting base leftwards, the side plate drives the pull rods fixed at the two ends of the screw rod to move towards the left side of the supporting base, the pull rods pull the clamping groove frames to be close to the supporting base, and the clamping groove frames push the over-travel spring push rod, so that the over-travel spring is compressed. The pre-compression amount of the over-travel spring can be adjusted by screwing the screwing screw for the number of turns, so that the pre-compression force of the contact in the vacuum tube of the circuit breaker is adjusted. The over-travel spring compression tool is simple and compact in assembly structure and convenient to use.
The specific embodiment is as follows:
the over travel spring compression tool of the circuit breaker is shown in figure 1 and the using mode is shown in figure 2, and the main structure of the over travel spring compression tool is as follows:
the supporting base 1 is formed by welding a supporting base left end plate 1a, a supporting base right end plate 1b and a supporting base bottom plate 1 c. Support base 1 and be used for placing the vacuum tube 8 of having assembled the over travel spring, over travel spring cutting ferrule 9 assembles on vacuum tube 8, and 9 internal assembly of over travel spring cutting ferrule need compressed over travel spring, and 8 left ends of vacuum tube block income support base left end board 1a circular recess. Two pull rods 2 pass through and support base left end board 1a, support base right end board 1b, and 2 both ends of pull rod are fixed by curb plate 5 and draw-in groove frame 4, and the round hole of overtravel spring push rod 3 insertion overtravel spring cutting ferrule 9, two round draw-in groove chucking overtravel spring push rod 3 in the middle of draw-in groove frame 4, screw 6 twists screw in the middle of the curb plate 5 of screw 6, and screw head 7 is twisted to the screw 6 tip of screwing, as shown in fig. 3, fig. 4.
When a spanner is used for screwing a screwing screw rod 6 to move towards a left end plate 1a of a supporting base, the screwing screw rod 6 and a side plate 5 are assembled through a screw hole, the screwing screw rod 6 applies a force to a screw rod head 7, the screw rod head 7 applies a force to support a left end plate 1a of the supporting base, the left end plate 1a of the supporting base is fixed, the side plate 5 is far away from the left end plate 1a of the supporting base through a reaction force, the side plate 5 pulls a pull rod 2 to be close to the left end plate 1a of the supporting base and further pulls a clamping groove frame 4, the clamping groove frame 4 pushes an over-travel spring push rod 3 to be close to the left end plate 1a of the supporting base, the over-travel spring push rod 3 pushes an over-travel spring clamping sleeve 9 to realize pre-compression of an over-travel spring, the compression amount is adjusted through the number of turns of the spanner for screwing the screwing screw rod 6, so as to adjust the pre-compression force applied to a vacuum packed moving contact of a vacuum tube 8, if the pre-compression force is too small, the closing time is long, the main contact is easy to cause arc drawing and bounce loss, even adhesion; the pre-compression is too big, lacks the overtravel spring flexible pressure application when the contact is closed, leads to the piston bounce-back easily behind the rigid collision, the utility model discloses effectively realize the regulation of overtravel spring precompression and compression capacity, be the necessary practical frock of vacuum circuit breaker assembly.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The over-travel spring compression tool for the circuit breaker is characterized by comprising a supporting base, wherein the supporting base comprises a bottom plate, a left end plate and a right end plate which are fixed into a whole;
a screw hole in the middle of the side plate is engaged with a screwing screw, the top end of the screwing screw is provided with a screw head, and the screw head abuts against the left end plate;
an over-travel spring push rod clamp is clamped in the middle of the clamping groove frame through two circular clamping grooves;
the vacuum tube with the overtravel spring assembled is placed between the left end plate and the right end plate of the supporting base, the bottom of the vacuum tube abuts against the left end plate, an overtravel spring clamping sleeve is arranged at the end part of the overtravel spring, and the overtravel spring push rod is clamped into a circular hole of the overtravel spring clamping sleeve.
2. The circuit breaker over-travel spring compression tool according to claim 1, wherein the right end of the pull rod is screwed into the screw hole of the slot frame and is screwed, and the left end of the pull rod is connected with the side plate through a nut and a spring pad.
3. The circuit breaker over-travel spring compression tool of claim 1, wherein the top end of the screwing screw is in circumferentially unconstrained connection with the screw head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022774533.9U CN213781949U (en) | 2020-11-26 | 2020-11-26 | Circuit breaker over-travel spring compression tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022774533.9U CN213781949U (en) | 2020-11-26 | 2020-11-26 | Circuit breaker over-travel spring compression tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213781949U true CN213781949U (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022774533.9U Active CN213781949U (en) | 2020-11-26 | 2020-11-26 | Circuit breaker over-travel spring compression tool |
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| Country | Link |
|---|---|
| CN (1) | CN213781949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113955441A (en) * | 2021-11-10 | 2022-01-21 | 珠海许继电气有限公司 | Over-travel spring assembling device and assembling method |
-
2020
- 2020-11-26 CN CN202022774533.9U patent/CN213781949U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113955441A (en) * | 2021-11-10 | 2022-01-21 | 珠海许继电气有限公司 | Over-travel spring assembling device and assembling method |
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