CN215183703U - Mining flame-proof type permanent magnet vacuum feed switch - Google Patents
Mining flame-proof type permanent magnet vacuum feed switch Download PDFInfo
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- CN215183703U CN215183703U CN202122751679.6U CN202122751679U CN215183703U CN 215183703 U CN215183703 U CN 215183703U CN 202122751679 U CN202122751679 U CN 202122751679U CN 215183703 U CN215183703 U CN 215183703U
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Abstract
The utility model relates to a mining flame-proof type permanent magnet vacuum feed switch, which belongs to the technical field of mining flame-proof switches; the flame-proof circuit breaker comprises a flame-proof shell, wherein a plurality of moving contacts which correspond to a plurality of fixed contacts one by one are arranged on a permanent magnetic circuit breaker, a transmission assembly is arranged at the bottom of the inner side of the flame-proof shell and comprises a transmission rod, a driving part and a guide part, the permanent magnetic circuit breaker and the guide part are fixed at one end, close to the fixed contacts, of the transmission rod, the driving part is arranged at one end, far away from the permanent magnetic circuit breaker, of the transmission rod, racks are arranged on two sides of the transmission rod along the length direction, gears on the driving part are meshed with the racks, and the transmission rod drives the permanent magnetic circuit breaker to enable the moving contacts to be in stable contact with the fixed contacts under the action of the guide part; the utility model discloses a rack and pinion transmission structure and the rail block structure of drive assembly can make permanent magnetism circuit breaker steadily slide, have reduced the influence of equipment vibration to permanent magnetism circuit breaker, have guaranteed the stability and the reliability of contact between moving contact and the static contact, have improved the security of operation.
Description
Technical Field
The utility model belongs to the technical field of mining flame proof switch, concretely relates to mining flame proof type permanent magnetism vacuum feed switch.
Background
The mining explosion-proof vacuum feed switch is suitable for coal mine underground and other environments containing explosive gas (methane mixture) in surrounding media, is used as a main switch and a branch switch of a power supply system or a feed switch for a mining explosion-proof mobile substation in a circuit with 50HZ alternating current and 1140V voltage, can also be used for infrequently starting a high-capacity motor, and has the functions of overload, short circuit, undervoltage, leakage protection and the like.
The existing mine underground mining explosion-proof type feed switch body adopts a low-voltage vacuum circuit breaker with a mechanical structure, and when the mining explosion-proof type vacuum feed switch detects that the conditions such as electric leakage and the like cause circuit breaking, the contact between a moving contact and a static contact on a permanent magnet circuit breaker can be unstable due to vibration generated by equipment operation, so that the operation safety is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art and provides a mining flame-proof permanent magnet vacuum feed switch; the problem of unstable contact between a moving contact and a fixed contact caused by vibration when an existing mining explosion-proof type vacuum feed switch is in an open circuit is solved.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A mining flame-proof type permanent magnet vacuum feed switch comprises a flame-proof shell, a permanent magnet circuit breaker and a plurality of static contacts, wherein the permanent magnet circuit breaker and the static contacts are installed inside the flame-proof shell, the permanent magnet circuit breaker is provided with moving contacts which are equal to the static contacts in number and correspond to the static contacts one by one, the inner side wall of the flame-proof shell is provided with an installation seat, the static contacts are fixed on the installation seat, the bottom of the inner side of the flame-proof shell is provided with a bottom plate, the bottom plate is fixedly connected with a transmission assembly, the transmission assembly comprises a transmission part, a driving part and a guide part, the guide part is arranged at one end, close to the installation seat, of the upper end surface of the bottom plate and extends towards the direction far away from the installation seat, the driving part is arranged at one side, far away from the installation seat, of the transmission part is arranged above the guide part in parallel and is connected in the driving part in a sliding manner, and the permanent magnet circuit breaker is fixed at one end, close to the static contacts, of the transmission part, the side surfaces of the two sides of the transmission part are symmetrically provided with racks along the length direction of the transmission part, and the driving part is provided with a gear matched with the racks, and the gear is meshed with the racks.
Further, the transmission part comprises a main body part and a plurality of racks, the main body part comprises two transverse plates and two vertical plates vertically arranged between the two transverse plates, the two vertical plates and the two transverse plates form grooves on two sides of the two vertical plates, and the plurality of racks are symmetrically arranged in the grooves on two sides.
Further, the number of the racks is at least two.
Furthermore, the driving part comprises a base, and a driving rod parallel to the transmission part and a driven rod perpendicular to the driving rod are arranged on the base; the driving rod and the driven rod are rotatably arranged on the base, one end of the driving rod is connected with the motor, and the motor is fixedly connected to the base; the driving rod and the driven rod are respectively provided with bevel gears which are meshed with each other, gears in the driving portion are arranged on the driven rod, and the gears on the driven rod are respectively in one-to-one correspondence with and meshed with racks on the transmission portion.
Furthermore, a transmission assembly is further arranged on one side, close to the guide portion, of the base and comprises a support frame and a rolling shaft, the rolling shaft is rotatably arranged on the support frame, the support frame is fixedly arranged on the base, and the rolling shaft is in rolling contact with the end face of the bottom of the transmission portion.
Further, the base includes installing frame, support rib plate and base plate, base plate and bottom plate fixed connection, and a plurality of support rib plate perpendicular to bottom plate set up, and fix on the base plate along the slip direction equipartition, and the upper end middle part of support rib plate is provided with the mounting groove of isostructure, and in the installing frame embedding a plurality of support rib plate's the mounting groove, the installing frame sets up and be open structure at the both ends of transmission portion extending direction along the extending direction of transmission portion.
Furthermore, the driven rod is vertically arranged in the mounting frame, the driving rod penetrates through the plurality of supporting rib plates, one end, far away from the guide portion, of the driving rod is connected with the motor, the bevel gear at the end portion of the driven rod is meshed with the bevel gear on the driving rod, the transmission portion penetrates through the mounting frame, and the rack on the transmission portion of the transmission portion is meshed with the gear on the driven rod.
Further, the guide part comprises a guide rail, a sliding block and a fixing plate, the fixing plate is fixed on the bottom plate, the guide rail and the transmission part are arranged in parallel and fixed on the fixing plate, the sliding block is fixedly connected with the transmission part, and the sliding block is connected with the guide rail in a sliding mode.
Furthermore, one end of the fixing plate, which is close to the driving part, is provided with a limiting plate.
The utility model discloses produced beneficial effect for prior art does:
the utility model discloses a rack and pinion transmission structure and rail block structure can make permanent magnetism circuit breaker steadily slide among the drive assembly, have reduced the influence of equipment vibration to permanent magnetism circuit breaker, have guaranteed the stability and the reliability of contact between moving contact and the static contact, have improved the security of operation.
Drawings
The invention will be described in further detail with reference to the accompanying drawings:
FIG. 1 is a schematic structural diagram of a mining flameproof permanent magnet vacuum feed switch in the embodiment of the present invention;
fig. 2 is a front view of a drive assembly in an embodiment of the present invention;
fig. 3 is a left side view of the transmission assembly in an embodiment of the present invention;
fig. 4 is a schematic view of the connection between the transmission rod and the driving portion in the embodiment of the present invention.
Reference numerals: 1. an explosion-proof shell; 2. a permanent magnet circuit breaker; 21. a moving contact; 3. static contact; 4. a mounting seat; 5. a base plate; 6. a transmission assembly; 61. a transmission section; 611. a rack; 612. a body portion; 62. a drive section; 621. a base; 622. a driving lever; 623. a driven lever; 63. a guide portion; 7. a transmission assembly; 8. and a limiting plate.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1-4, the utility model provides a mining flame-proof type permanent magnetism vacuum feed switch, including flame proof casing 1, and install at the inside permanent magnetism circuit breaker 2 of flame proof casing 1 and a plurality of static contact 3, be equipped with on the permanent magnetism circuit breaker 2 and equal and the moving contact 21 of one-to-one with 3 quantity of static contact.
And the side wall of one end of the inner side of the flameproof shell 1 is provided with a mounting seat 4, and a plurality of static contacts 3 are sequentially fixed on the mounting seat 4 at intervals. The fixed bottom plate 5 that is provided with in inboard bottom of flame proof casing 1, the up end of bottom plate 5 is provided with drive assembly 6, drive assembly 6 includes transmission portion 61, drive division 62 and guide part 63, guide part 63 sets up in the one end that the up end of bottom plate 5 is close to mount pad 4 and extends towards the direction of keeping away from mount pad 4, drive division 62 sets up in one side that mount pad 4 was kept away from to guide part 63, transmission portion 61 parallel arrangement is in the top of guide part 63 and sliding connection in drive division 62, and transmission portion 61 slides towards the direction of keeping away from or being close to mount pad 4.
The permanent magnet circuit breaker 2 is fixed at one end, close to the fixed contact 3, of the transmission part 61, the guide part 63 is located below one end, provided with the permanent magnet circuit breaker 2, of the transmission part 61, and the driving part 62 is arranged at one end, far away from the permanent magnet circuit breaker 2, of the transmission part 61. The side surfaces of the two sides of the transmission part 61 are symmetrically provided with racks 611 along the length direction, the driving part 62 is provided with a gear matched with the racks 611, the gear is meshed with the racks 611, and the transmission part 61 drives the permanent magnetic circuit breaker 2 to move in the direction close to or far away from the static contact 3 under the action of the guide part 63.
The utility model discloses a rack and pinion drive structure inside transmission assembly 6 and the inside guide structure of guide part 63 can make permanent magnet circuit breaker 2 steadily slide, have reduced the influence of equipment vibration to permanent magnet circuit breaker 2, have guaranteed the stability and the reliability of contact between moving contact 21 and the static contact 3, have improved the security of operation.
In the preferred embodiment of the present invention, the transmission part 61 includes a main body part 612 and a plurality of racks 611, the main body part 612 includes two transverse plates and two vertical plates vertically disposed between the two transverse plates, the two vertical plates and the two transverse plates form grooves on two sides of the two vertical plates, and the plurality of racks 611 are symmetrically disposed in the grooves on two sides. The rack 611 is arranged in the grooves on the two sides, so that the mounting space is saved, the structure is more compact, and the transmission stability is improved.
In order to guarantee that transmission portion 61 can even running, rack 611 is equipped with 2 at least, the utility model discloses well preferred 4 racks 611 that are equipped with, and the symmetry sets up in the both sides of main part 612, and the upper and lower end of every side sets up a rack 611 respectively, has guaranteed the whole balanced of atress of transmission portion 61.
In the preferred embodiment of the present invention, the driving portion 62 includes a base 621, a driving rod 622 parallel to the transmission portion 61 is disposed on the base 621, and a driven rod 623 perpendicular to the driving rod 622; the driving rod 622 and the driven rod 623 are rotatably disposed on the base 621, and one end of the driving rod 622 is connected to a motor, which is fixedly connected to the base 621. The driving rod 622 and the driven rod 623 are respectively provided with bevel gears which are meshed with each other, the gears inside the driving part 62 are arranged on the driven rod 623, and the gears on the driven rod 623 are respectively in one-to-one correspondence with and meshed with the racks 611 on the transmission part 61.
The driving rod 622 and the driven rod 623 are matched through a bevel gear, the rotation of the driving rod 622 in the horizontal direction is converted into the rotation of the driven rod 623 in the vertical direction, and the gear is meshed with the rack 611, so that the influence of the vibration of the equipment on the permanent magnet circuit breaker 2 is reduced, the transmission is more stable, the transmission reliability is improved,
on the basis of the above embodiment, a transmission assembly 7 is further arranged on one side, close to the guide portion 63, of the base 621, the transmission assembly 7 comprises a support frame and a roller, the roller is rotatably arranged on the support frame, the support frame is fixedly arranged on the base 621, the roller is in rolling contact with the bottom end face of the transmission portion 61, and through the arrangement of the roller, friction force generated during transmission of the transmission portion 61 is reduced, so that transmission is smoother.
As a preferable example of the above embodiment, the base 621 includes a mounting frame, support rib plates, and a base plate, the base plate is fixedly connected to the bottom plate 5, the plurality of support rib plates are disposed perpendicular to the bottom plate and uniformly fixed on the base plate along the sliding direction, mounting grooves with the same structure are disposed in the middle of the upper ends of the support rib plates, the mounting frame is embedded in the mounting grooves of the plurality of support rib plates, the mounting frame is disposed along the extending direction of the transmission part 61, and both ends of the mounting frame in the extending direction of the transmission part 61 are open structures; the arrangement of the mounting frame, the supporting rib plates and the base plate simplifies the structure of the base 621, and the supporting rib plates increase the overall strength.
The driven rod 623 is vertically arranged in the mounting frame, the driving rod 622 penetrates through a plurality of supporting rib plates, one end, far away from the guide part 63, of the driving rod 622 is connected with the motor, a bevel gear at the end part of the driven rod 623 is meshed with a bevel gear on the driving rod 622, the transmission part 61 penetrates through the mounting frame, and a rack 611 on the transmission part 61 is meshed with a gear on the driven rod 623.
Specifically, the installation frame and the supporting rib plate are assembled at intervals, convenience is provided for installation of the driving rod 622 and the driven rod 623, the installation frame and the supporting rib plate are fixed in a welding mode, secondary machining process time is reduced, and installation efficiency is improved.
In the preferred embodiment of the present invention, the guiding portion 63 includes a guiding rail, a sliding block and a fixing plate, the fixing plate is fixed on the bottom plate 5, the guiding rail is parallel to the transmission portion 61 and fixed on the fixing plate, the sliding block is fixedly connected to the transmission portion 61, and the sliding block is slidably connected to the guiding rail. The guide part 63 plays a role in guiding the transmission part 61, and the corresponding accuracy between the movable contact 21 and the fixed contact 3 is ensured.
In addition to the above embodiments, a limit plate 8 is disposed at one end of the fixing plate close to the driving portion 62.
The utility model discloses an implementation process, fix bottom plate 5 in the inboard bottom of flame proof casing 1, drive division 62 and guide part 63 are fixed on bottom plate 5, the installing frame is passed to transmission 61 one end, the gear engagement on rack 611 on its transmission 61 and the installing frame on the driven lever 623, the slider fixed connection of transmission 61 other end bottom and guide part 63, top and 2 fixed connection of permanent magnet circuit breaker, the signal of telecommunication starts is received to the motor, the drive driving lever rotates, the driving lever passes through the bevel gear meshing and drives the driven lever rotation, wheel and rack 611 meshing on the follow driving wheel, transmission 61 drives permanent magnet circuit breaker 2 and moves towards being close to static contact 3 under the effect of guide part 63, make movable contact 21 and static contact 3 contact, reach the short circuit effect. The utility model discloses a rack and pinion 611 transmission structure and the rail block structure of transmission assembly 6 can make permanent magnet circuit breaker 2 steadily slide, have reduced the equipment vibration to permanent magnet circuit breaker 2's influence, have guaranteed the stability and the reliability of contact between moving contact 21 and the static contact 3, have improved the security of operation.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a mining flame-proof type permanent magnetism vacuum feed switch, includes flame proof casing (1), and installs permanent magnetism circuit breaker (2) and a plurality of static contact (3) inside flame proof casing (1), is equipped with moving contact (21) that equal and one-to-one with static contact (3) quantity on permanent magnetism circuit breaker (2), its characterized in that: the inner side wall of the flameproof shell (1) is provided with a mounting seat (4), the fixed contacts (3) are fixed on the mounting seat (4), the bottom of the inner side of the flameproof shell (1) is provided with a bottom plate (5), a transmission assembly (6) is fixedly connected onto the bottom plate (5), the transmission assembly (6) comprises a transmission part (61), a driving part (62) and a guide part (63), the guide part (63) is arranged at one end, close to the mounting seat (4), of the upper end face of the bottom plate (5) and extends towards the direction far away from the mounting seat (4), the driving part (62) is arranged at one side, far away from the mounting seat (4), of the guide part (63), the transmission part (61) is arranged above the guide part (63) in parallel and is connected in the driving part (62) in a sliding manner, the permanent magnet circuit breaker (2) is fixed at one end, close to the fixed contacts (3), of the transmission part (61), the side surfaces of two sides of the transmission part (61) are symmetrically provided with racks (611) along the length direction, the driving part (62) is provided with a gear matched with the racks (611), and the gear is meshed with the racks (611).
2. The mining flameproof permanent magnet vacuum feed switch according to claim 1, characterized in that: the transmission part (61) comprises a main body part (612) and a plurality of racks (611), the main body part (612) comprises two transverse plates and two vertical plates vertically arranged between the two transverse plates, the two vertical plates and the two transverse plates form grooves on two sides of the two vertical plates, and the plurality of racks (611) are symmetrically arranged in the grooves on two sides.
3. The mining flameproof permanent magnet vacuum feed switch according to claim 2, characterized in that: the number of the racks (611) is at least 2.
4. The mining flameproof permanent magnet vacuum feed switch according to claim 1, characterized in that: the driving part (62) comprises a base (621), a driving rod (622) parallel to the transmission part (61) and a driven rod (623) perpendicular to the driving rod (622) are arranged on the base (621); the driving rod (622) and the driven rod (623) are rotatably arranged on the base (621), one end of the driving rod (622) is connected with a motor, and the motor is fixedly connected to the base (621); bevel gears which are meshed with each other are respectively arranged on the driving rod (622) and the driven rod (623), gears inside the driving part (62) are arranged on the driven rod (623), and the gears on the driven rod (623) are respectively in one-to-one correspondence with and meshed with racks (611) on the transmission part (61).
5. The mining flameproof permanent magnet vacuum feed switch according to claim 4, characterized in that: one side that is close to guide part (63) on base (621) still is equipped with transmission assembly (7), and transmission assembly (7) include support frame and roller bearing, and the roller bearing rotates and sets up on the support frame, and the support frame is fixed to be set up on base (621), and the roller bearing rolls with the bottom terminal surface looks rolling contact of transmission part (61).
6. The mining flameproof permanent magnet vacuum feed switch according to claim 4, characterized in that: base (621) are including installing frame, support rib plate and base plate, base plate and bottom plate (5) fixed connection, and a plurality of support rib plate perpendicular to bottom plate set up, and fix on the base plate along the slip direction equipartition, and support rib plate's upper end middle part is provided with the mounting groove of isostructure, and in the installing groove of a plurality of support rib plates of installing frame embedding, the installing frame set up and be open structure at the both ends of transmission portion (61) extending direction along the extending direction of transmission portion (61).
7. The mining flameproof permanent magnet vacuum feed switch according to claim 6, characterized in that: the driven rod (623) is vertically arranged in the mounting frame, the driving rod (622) penetrates through the plurality of supporting rib plates, one end, far away from the guide part (63), of the driving rod (622) is connected with the motor, a bevel gear at the end part of the driven rod (623) is meshed with a bevel gear on the driving rod (622), the transmission part (61) penetrates through the mounting frame, and a rack (611) on the transmission part (61) is meshed with a gear on the driven rod (623).
8. The mining flameproof permanent magnet vacuum feed switch according to claim 1, characterized in that: the guide part (63) comprises a guide rail, a sliding block and a fixing plate, the fixing plate is fixed on the bottom plate (5), the guide rail and the transmission part (61) are arranged in parallel and fixed on the fixing plate, the sliding block is fixedly connected with the transmission part (61), and the sliding block is connected with the guide rail in a sliding mode.
9. The mining flameproof permanent magnet vacuum feed switch according to claim 8, characterized in that: and a limiting plate (8) is arranged at one end of the fixing plate, which is close to the driving part (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751679.6U CN215183703U (en) | 2021-11-11 | 2021-11-11 | Mining flame-proof type permanent magnet vacuum feed switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751679.6U CN215183703U (en) | 2021-11-11 | 2021-11-11 | Mining flame-proof type permanent magnet vacuum feed switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215183703U true CN215183703U (en) | 2021-12-14 |
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ID=79404344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122751679.6U Active CN215183703U (en) | 2021-11-11 | 2021-11-11 | Mining flame-proof type permanent magnet vacuum feed switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215183703U (en) |
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2021
- 2021-11-11 CN CN202122751679.6U patent/CN215183703U/en active Active
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