CN212935347U - Drawer transmission device of switch electric appliance - Google Patents
Drawer transmission device of switch electric appliance Download PDFInfo
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- CN212935347U CN212935347U CN202021801816.1U CN202021801816U CN212935347U CN 212935347 U CN212935347 U CN 212935347U CN 202021801816 U CN202021801816 U CN 202021801816U CN 212935347 U CN212935347 U CN 212935347U
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- drawer
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Abstract
The utility model provides a pair of switch electrical apparatus drawer transmission includes rack assembly, drive assembly and gear assembly. Because the drive ratio of the worm gear and the worm of the drive assembly is large, when the switch main body needs to be moved, the required external force (hand cranking) is small, the rack of the rack assembly always keeps horizontal linear motion, and the switch body is stressed in a balanced manner and cannot be inclined. In addition, the transmission device is arranged on the side surface of the drawer, so that the operation is convenient.
Description
Technical Field
The invention relates to a frame circuit breaker or a dual-power automatic transfer switching device, in particular to a transmission device for a switching device body to enter and exit a drawer.
Background
The drawer type moving-in and moving-out structure is adopted for the body of the low-voltage electric switch appliance, and the switch appliance is mainly used in important occasions, such as power supply systems of operating rooms of hospitals, banks and financial institutions. In these applications, the drawer-type moving-in and moving-out structure is convenient to repair or replace, and the movement of the switch main body requires a transmission mechanism. The transmission mechanism in the prior art adopts a transmission mode that a screw drives a carriage and a cam, and although the transmission mechanism is mature applied to a frame circuit breaker product, the following defects can occur in the application of a high-current dual-power product:
(1) the hand-shaking force is too large due to the large overall weight of the large-current product;
(2) the product center of gravity is high, and the single cam structure is easy to lead the product to incline due to uneven stress in the propelling process.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a move stable and operation convenient to use's a switch electrical apparatus drawer transmission.
In order to realize the purpose of the utility model, the utility model provides a pair of switch electrical apparatus drawer transmission includes:
the rack assembly comprises at least one pair of racks, each pair of racks is respectively arranged on a pair of left and right side plates, and the front and back movement of the racks can drive the side plates to move back and forth;
the driving assembly is arranged on one side of the drawer seat and comprises a turbine and a worm meshed with the turbine; and
a gear assembly mounted on the drawer base and including at least one pair of bull gears and pinion gears, the pinion gear meshing with a bull gear on one side of the drive assembly, and the pinion gear being coaxially mounted with the turbine for coaxial operation; the left side and the right side of the pair of large gears are arranged and are respectively connected through a transmission shaft, so that the large gears are respectively meshed with the racks on the left side plate and the right side plate.
Further, the rack assembly comprises two pairs of racks which are arranged at the upper and lower positions of the left and right side plates, and the two racks on each side plate are arranged in parallel; correspondingly, the gear assembly comprises two pairs of large gears and two small gears, the two small gears are arranged up and down and are meshed with each other, and the large gears arranged on the left side and the right side of each pair are connected through transmission shafts respectively.
Further, the transmission device is installed on the side surface of the drawer seat.
Furthermore, a fixing block is arranged on the side plate and used for installing and fixing the switch body.
The utility model provides a pair of switch electrical apparatus drawer transmission is because the drive ratio of the turbine worm that drive assembly adopted is big, like this, when needs removal switch main part, the external force (hand) power of needs is very little, and rack assembly's rack remains horizontal linear motion throughout moreover, and switch body atress is balanced to can not incline. In addition, the transmission device is arranged on the side surface of the drawer, so that the operation is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a switching device using the drawer transmission device of the switching device of the present invention.
Fig. 2 is a side view of the drawer transmission device of the switch electric appliance of the present invention.
Fig. 3 is a schematic structural view of the drawer transmission device of the switch electrical appliance of the present invention.
Detailed Description
In order to make the technical means, technical features, achievement purposes and effects of the present invention easy to understand, the present invention will be further described with reference to the following specific drawings.
Referring to fig. 1, 2 and 3, the utility model provides a drawer transmission device for switching device, which comprises a rack assembly 11, a driving assembly 31 and a gear assembly 21. The rack assembly 11 comprises at least two pairs of racks 111 and 112, each pair of racks 111 and 112 is respectively installed on a pair of left and right side plates 1 and 2, and the front and back movement of the racks 111 and 112 can drive the side plates 1 and 2 to move back and forth. Fixing blocks 401 and 402 for mounting the switch body 100 are provided above and below the side plates 1 and 2. The fixing blocks 401 and 402 may be used to fix the switch body 100.
The drive assembly 31 is mounted on the frame of the drawer base 3 and comprises a worm wheel 312 and a worm 311 meshing with said worm wheel. The worm 311 may be connected to a handle and rotated by an external force or other power. The rotational directions of the worm wheel 312 and the worm 311 are different by 90 °.
The gear assembly 21 is mounted on the frame of the drawer base 3 and comprises two pairs of large gears 211, 212 arranged on both sides and small gears 221, 222 meshing with the large gears 211, 212 on one side (right side in the figure), wherein one small gear 221 (arranged above in the figure) is mounted coaxially with the turbine 312 so as to run coaxially. Two large gears 211 and 212, which are disposed up and down on both sides, are connected by transmission shafts 291 and 292, respectively, and wherein the two large gears 211 are engaged with the two racks 111 above the left and right side plates 1, 2, respectively. The two large gears 212 are respectively meshed with the two racks 112 below the left and right side plates 1 and 2.
Thus, when the worm 311 of the external force rotation driving assembly 31 rotates, the worm wheel 312 rotates, so that the pinion 221 coaxial with the worm wheel 312 rotates, the pinion 221 rotates, and since the pinion 221 itself is meshed with the bull gear 211 on one side (the side on which the driving assembly 31 is installed), the bull gear 211 on the right rotates, and meanwhile, the bull gear 211 above the left side (the side on which the side plate 2 is installed) is driven to rotate by the transmission shaft 291, so that the two bull gears 211 above the left side and the right side drive the rack 111 above the left side plate 1 and the right side plate 2 meshed therewith to move back and forth. In addition, the pinion 221 drives the pinion 222 to rotate due to the meshing of the pinion 222, and similarly, the pinion 222 is meshed with the bull gear 212 below one side (one side of the side plate 1), so that the right bull gear 212 rotates, and meanwhile, the bull gear 212 below the left side (one side of the side plate 2) is driven to rotate through the transmission shaft 292, so that the left and right bull gears 212 below the two sides drive the racks 112 below the left and right side plates 1 and 2 meshed with the left and right bull gears to move back and forth. Two pairs of racks 111 and 112 arranged up and down are respectively fixed on the side plates 1 and 2, so that the side plates 1 and 2 can move back and forth to drive the switch main body 100 arranged on the side plates to move in or out of the drawer base 3, and the installation, maintenance or replacement is convenient.
The utility model provides a pair of switch electrical apparatus drawer transmission is because the turbine 311 that drive assembly 31 adopted, worm 312's drive ratio is big, like this, when needs removal switch main part, the external force (hand) power of needs is very little, and rack 111, 112 of rack group 11 remain horizontal linear motion throughout moreover, and switch body 100 atress is balanced to can not incline, especially adopt two pairs of upper and lower rack 111, 112 horizontal migration, it is steady very much to have guaranteed switch body 100 operation. In addition, the transmission device is arranged on the side surface of the drawer base 3, so that the operation of installation, maintenance or replacement is convenient.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A drawer transmission device of a switch electric appliance is characterized by comprising:
the rack assembly comprises at least one pair of racks, each pair of racks is respectively arranged on a pair of left and right side plates, and the front and back movement of the racks can drive the side plates to move back and forth;
the driving assembly is arranged on one side of the drawer seat and comprises a turbine and a worm meshed with the turbine; and
a gear assembly mounted on the drawer base and including at least one pair of bull gears and pinion gears, the pinion gear meshing with a bull gear on one side of the drive assembly, and the pinion gear being coaxially mounted with the turbine for coaxial operation; the left side and the right side of the pair of large gears are arranged and are respectively connected through a transmission shaft, so that the large gears are respectively meshed with the racks on the left side plate and the right side plate.
2. The switchgear drawer actuator of claim 1, wherein the rack assembly comprises two pairs of racks disposed at upper and lower positions of left and right side plates, the two racks on each side plate being installed in parallel; correspondingly, the gear assembly comprises two pairs of large gears and two small gears, the two small gears are arranged up and down and are meshed with each other, and the large gears arranged on the left side and the right side of each pair are connected through transmission shafts respectively.
3. The switchgear drawer transmission of claim 1, wherein the transmission is mounted on a side of the drawer base.
4. The drawer transmission device of the switch electric appliance according to claim 1, wherein the side plate is provided with a fixing block for fixing the switch body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021801816.1U CN212935347U (en) | 2020-08-25 | 2020-08-25 | Drawer transmission device of switch electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021801816.1U CN212935347U (en) | 2020-08-25 | 2020-08-25 | Drawer transmission device of switch electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212935347U true CN212935347U (en) | 2021-04-09 |
Family
ID=75300616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021801816.1U Active CN212935347U (en) | 2020-08-25 | 2020-08-25 | Drawer transmission device of switch electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212935347U (en) |
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2020
- 2020-08-25 CN CN202021801816.1U patent/CN212935347U/en active Active
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