CN210429641U - Novel marine earthing switch - Google Patents
Novel marine earthing switch Download PDFInfo
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- CN210429641U CN210429641U CN201921408935.8U CN201921408935U CN210429641U CN 210429641 U CN210429641 U CN 210429641U CN 201921408935 U CN201921408935 U CN 201921408935U CN 210429641 U CN210429641 U CN 210429641U
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- crank arm
- main shaft
- spring
- bottom plate
- earthing switch
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Abstract
The utility model discloses a novel marine grounding switch, which comprises a bottom plate and an operating shaft; the tail end of the operating shaft is connected with the left end of the first crank arm; the right end of the first crank arm is connected with the bottom plate through a limiting spring, the middle of the first crank arm is connected with one end of a connecting rod, the other end of the connecting rod is connected with the bottom of a second crank arm, the top of the second crank arm is connected with the main shaft, a moving contact is connected to the outer wall of the main shaft, and the moving contact is matched with a fixed contact in a busbar. Through mutually supporting of first crank arm, second crank arm and main shaft, realized in less space, change the transmission direction many times, finally let the rotary motion of operating axis transmit to the main shaft, accomplish earthing switch's divide-shut brake operation, realized earthing switch's miniaturized demand.
Description
Technical Field
The utility model relates to a novel marine earthing switch.
Background
With the development of shipping and the development of large-scale ships, the original low-voltage cabinet cannot meet the requirements of the current market, and a ship medium-voltage switch cabinet is developed aiming at the problem. However, since the space of the ship is limited, the original medium voltage switch cabinet is often too large to be well adapted to the requirements of the ship due to the overlarge volume, so that a small and highly reliable medium voltage switch cabinet special for the ship, which is suitable for the ship environment, must be developed.
And the grounding switch in the small-sized ship-dedicated medium-voltage switch cabinet has to be stable and reliable, has strong separating capacity, and still has a fast opening and closing speed after being miniaturized, preferably has a higher opening and closing speed than that of a large-sized medium-voltage switch cabinet, and is stable and reliable.
However, the grounding switch in the existing switch cabinet is often poor in structural stability, cannot play a very stable protection role in the case of electric leakage, and the opening and closing speed needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above prior art not enough, provide a novel marine earthing switch.
A novel marine grounding switch comprises a bottom plate and an operating shaft; the tail end of the operating shaft is connected with the left end of the first crank arm; the right end of the first crank arm is connected with the bottom plate through a limiting spring, the middle of the first crank arm is connected with one end of a connecting rod, the other end of the connecting rod is connected with the bottom of a second crank arm, the top of the second crank arm is connected with the main shaft, a moving contact is connected to the outer wall of the main shaft, and the moving contact is matched with a fixed contact in a busbar; even there is spacing cam on the second connecting lever, spacing cam on be equipped with fan-shaped breach, fan-shaped breach in be equipped with spacing post, through spacing cam and spacing post's cooperation, can prevent that main shaft rotation angle is too big, leads to the moving contact to damage, the rotatable angle of its main shaft is exactly the central angle of fan-shaped breach.
Preferably, first connecting lever be L shape, the left end of the first connecting lever of L shape links to each other with the operation axle, and is the rotation center of first connecting lever, even there is vertical connecting rod in the middle part of first connecting lever, the tip of connecting rod is articulated mutually with the stand on the first connecting lever, the right-hand member of first connecting lever links to each other with the bottom plate through the spacing spring that an slant set up.
Preferably, the main shaft on still be equipped with spring mechanism, spring mechanism include spring guide post and auxiliary spring, the bottom of spring guide post links to each other with the bottom plate through horizontal pivot, the auxiliary spring cover establish on the spring guide post, the upper end of auxiliary spring links to each other with the lateral wall of main shaft, the lower extreme butt of auxiliary spring is on the jump ring, the jump ring joint on the spring guide post.
Preferably, a clamping groove structure for connecting the handle is arranged at the top end of the operating shaft, and the operating handle can be connected through the clamping groove structure.
Preferably, the connecting rod is connected with the bottom of the second crank arm through a universal joint.
Preferably, the device further comprises a grounding wire, one end of the grounding wire is grounded through the bottom plate, and the other end of the grounding wire is connected with the movable contact.
Preferably, the bottom plate is provided with a through hole matched with the diameter of the operating shaft, and the operating shaft passes through the through hole to be connected with the left end of the first crank arm.
The use method comprises the following steps:
1. mounting each part of the marine grounding switch on a bottom plate;
2. the operating shaft is controlled to rotate by using the grounding switch operating handle;
3. the operating shaft rotates and drives the first crank arm to rotate;
4. the limiting spring ensures that the first crank arm moves in place;
5. the first crank arm drives the connecting rod to move;
6. the connecting rod drives the second crank arm to rotate;
7. the second crank arm is connected with the main shaft, so that the main shaft can be driven to rotate when the second crank arm rotates;
8. the main shaft rotates and drives the moving contact of the grounding switch to rotate, and the opening and closing operation of the grounding switch can be realized; (fixed contact fixed on the corresponding bus bar)
9. The limiting cam is fixed on the main shaft and is used for limiting the rotation of the main shaft, and when the grounding switch is switched on and off, the limiting cam can touch the limiting column after rotating for a certain angle, so that the function of limiting the rotation of the main shaft is realized;
10. similarly, the spring structure on the main shaft provides force for the rotation of the main shaft, the opening and closing speed of the grounding switch is ensured, and the capacity of the grounding switch for breaking short-circuit current is improved;
11. the grounding wire is connected to the movable contact of the grounding switch to ground the residual current in the bus system, so that the grounding purpose of the grounding switch is realized.
Has the advantages that:
through mutually supporting of first connecting lever, connecting rod, second connecting lever and main shaft, realized in less space, change the transmission direction many times for the rotary motion of operating axis transmits the rotary motion to the main shaft always, and realized the rotation of moving contact, accomplished earthing switch's divide-shut brake operation, realized earthing switch's miniaturized demand. Through the auxiliary action of the limiting spring and the auxiliary spring, the opening and closing speed of the grounding switch is guaranteed, and the quick switching of on and off is guaranteed.
Drawings
FIG. 1 is a side view of a novel marine grounding switch;
FIG. 2 is a first schematic structural diagram of a novel marine grounding switch;
FIG. 3 is a front view of a novel marine grounding switch;
FIG. 4 is a second schematic structural diagram of a novel marine grounding switch;
1. the device comprises a base plate 2, an operating shaft 3, a first crank arm 4, a limiting spring 5, a connecting rod 6, a second crank arm 7, a main shaft 8, a moving contact 9, a limiting cam 10, a limiting column 11, an auxiliary spring 12 and a grounding wire.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
As shown in fig. 1-4, a novel grounding switch for ships comprises a bottom plate 1 and an operating shaft 2; the tail end of the operating shaft 2 is connected with the left end of the first crank arm 3; the first crank arm 3 is L-shaped.
The right-hand member of first connecting lever 3 passes through spacing spring 4 and links to each other with bottom plate 1, and the middle part of first connecting lever 3 links to each other with the one end of connecting rod 5, the other end of connecting rod 5 passes through the universal joint and links to each other with the bottom of second connecting lever 6, the top of second connecting lever 6 links to each other with main shaft 7, and first connecting lever 3 is mutually perpendicular's relation with second connecting lever 6 in the space relation.
A moving contact 8 is connected to the outer wall of the main shaft 7, and the moving contact 8 is matched with a fixed contact in the main row; the second crank arm 6 is connected with a limiting cam 9, the limiting cam 9 is provided with a fan-shaped notch, and a limiting column 10 is arranged in the fan-shaped notch.
The bottom plate 1 is provided with a through hole matched with the diameter of the operating shaft 2, and the operating shaft 2 penetrates through the through hole to be connected with the left end of the first crank arm 3.
The top end of the operating shaft 2 is provided with a clamping groove structure used for connecting a handle, and the operating handle is connected through the clamping groove structure.
The grounding wire 12 is further included, one end of the grounding wire 12 is grounded through the bottom plate 1, and the other end of the grounding wire 12 is connected with the moving contact 8.
The use method comprises the following steps:
1. mounting each part of the marine grounding switch on a bottom plate 1;
2. the operating shaft 2 is controlled to rotate by using the grounding switch operating handle;
3. the operating shaft 2 rotates and drives the first crank arm 3 to rotate;
4. the limiting spring 4 ensures that the first crank arm 3 acts in place;
5. the first crank arm 3 drives the connecting rod 5 to move;
6. the connecting rod 5 drives the second crank arm 6 to rotate;
7. the second crank arm 6 is connected with the main shaft 7, so that the main shaft 7 is driven to rotate when the second crank arm 6 rotates;
8. the main shaft 7 rotates and drives the moving contact 8 of the grounding switch to rotate, and the opening and closing operation of the grounding switch can be realized; (fixed contact fixed on the corresponding bus bar)
9. The limiting cam 9 is fixed on the main shaft 7 and is used for limiting the rotation of the main shaft 7, when the grounding switch is switched on and off, the limiting cam 9 can touch the limiting column 10 after rotating for a certain angle, and the function of limiting the rotation of the main shaft 7 is realized;
10. similarly, a spring structure on the main shaft 7 provides force for the rotation of the main shaft 7, the opening and closing speed of the grounding switch is ensured, and the capacity of the grounding switch for breaking short-circuit current is improved;
11. the grounding wire 12 is connected to the moving contact 8 of the grounding switch, and grounds the residual current in the bus system, thereby achieving the purpose of grounding the grounding switch.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A novel marine grounding switch is characterized by comprising a bottom plate and an operating shaft; the tail end of the operating shaft is connected with the left end of the first crank arm; the right end of the first crank arm is connected with the bottom plate through a limiting spring, the middle of the first crank arm is connected with one end of a connecting rod, the other end of the connecting rod is connected with the bottom of a second crank arm, the top of the second crank arm is connected with the main shaft, a moving contact is connected to the outer wall of the main shaft, and the moving contact is matched with a fixed contact in a busbar; the second crank arm is connected with a limiting cam, a fan-shaped notch is formed in the limiting cam, and a limiting column is arranged in the fan-shaped notch.
2. The novel marine earthing switch of claim 1, characterized in that said first crank arm is L-shaped.
3. The novel marine earthing switch of claim 1, characterized in that, the main shaft on still be equipped with spring mechanism, spring mechanism include spring guide post and auxiliary spring, the bottom of spring guide post links to each other with the bottom plate through horizontal pivot, the auxiliary spring cover establish on the spring guide post, the upper end of auxiliary spring links to each other with the lateral wall of main shaft, the lower extreme butt of auxiliary spring is on the jump ring, the jump ring joint on the spring guide post.
4. The novel marine earthing switch according to claim 1, characterized in that the top end of said operating shaft is provided with a slot structure for connecting a handle.
5. The novel marine earthing switch of claim 1, characterized in that said connecting rod is connected to the bottom of the second crank arm by a universal joint.
6. The novel grounding switch for the ship as claimed in claim 1, further comprising a grounding wire, wherein one end of the grounding wire is grounded through the bottom plate, and the other end of the grounding wire is connected with the movable contact.
7. The novel marine earthing switch of claim 1, characterized in that the bottom plate is provided with a through hole matching with the diameter of the operating shaft, and the operating shaft passes through the through hole to be connected with the left end of the first crank arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408935.8U CN210429641U (en) | 2019-08-28 | 2019-08-28 | Novel marine earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408935.8U CN210429641U (en) | 2019-08-28 | 2019-08-28 | Novel marine earthing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210429641U true CN210429641U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921408935.8U Active CN210429641U (en) | 2019-08-28 | 2019-08-28 | Novel marine earthing switch |
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| CN (1) | CN210429641U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473734A (en) * | 2019-08-28 | 2019-11-19 | 现代重工(中国)电气有限公司 | A kind of New Marine earthing switch |
| CN112802705A (en) * | 2021-01-28 | 2021-05-14 | 杭州施江银电气成套有限公司 | Earthing switch operation axle construction |
-
2019
- 2019-08-28 CN CN201921408935.8U patent/CN210429641U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473734A (en) * | 2019-08-28 | 2019-11-19 | 现代重工(中国)电气有限公司 | A kind of New Marine earthing switch |
| CN112802705A (en) * | 2021-01-28 | 2021-05-14 | 杭州施江银电气成套有限公司 | Earthing switch operation axle construction |
| CN112802705B (en) * | 2021-01-28 | 2023-02-28 | 杭州施江银电气成套有限公司 | Earthing switch operation axle construction |
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