CN214473798U - Automatic lifting device for gas relay calibration - Google Patents
Automatic lifting device for gas relay calibration Download PDFInfo
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- CN214473798U CN214473798U CN202120502396.5U CN202120502396U CN214473798U CN 214473798 U CN214473798 U CN 214473798U CN 202120502396 U CN202120502396 U CN 202120502396U CN 214473798 U CN214473798 U CN 214473798U
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Abstract
The utility model relates to an automatic lifting device for buchholz relay check-up, including shear type mechanism, screw driver, moving platform and backup pad, screw driver includes the slip table, moving platform and slip table are together fixed, the slip table can drive moving platform and remove, shear type mechanism includes two sets of support arm framves, every group supports the arm frame and includes two intercrossing and articulated support arms together, the tip that has two support arms at least is articulated with the moving platform upside, the tip that has two support arms at least is articulated with the backup pad downside, and the tip of at least one support arm is sharp drive end, go up and down with driving shear type mechanism, two support and be equipped with first connecting axle between the arm frame, second connecting axle and third connecting axle. The scissor mechanism of the device is driven by a stepping motor, and the speed in the lifting process is controllable; be equipped with anti-skidding backing plate in the backup pad, can prevent that buchholz relay from sliding, lead screw starter and scissor mechanism all set up manual device, guarantee normal work when automatic device trouble.
Description
Technical Field
The utility model relates to a buchholz relay check-up field, concretely relates to automatic lifting device for buchholz relay check-up.
Background
The main protection device for the internal fault of the transformer is gas protection, fault equipment can be cut off instantly, but the sensitivity of a gas relay depends on a setting value. When the setting value of the heavy gas is smaller, the normal flow of the transformer oil easily causes the relay to generate misoperation, and the serious influence is brought to the normal operation of a power grid; when the heavy gas setting value is larger, the gas relay has the failure of the protection function due to the phenomena of poor contact of contacts, cracking of a reed switch, oil leakage and the like. The relay can not effectively play a role in protection, so that faults can not be found in time, and even accidents can be further expanded.
The new gas relay needs to be checked and set before installation, and because the gas relay is not set according to the requirements of the assembled equipment when leaving factory and is a fixed value, the relay body is qualified, but still needs to be checked before installation to ensure that the relay can reliably act. In addition, when the gas relays with the same caliber are installed on transformers with different capacities and different cooling modes, the heavy gas parameters are different. When the new gas relay is installed, the relay needs to be adjusted and set according to the capacity of the transformer and regulations. The gas relay needs to be subjected to state confirmation before installation, and problems such as reed pipe breakage, sealing performance reduction and the like in the transportation process are found in time. When the transformer is overhauled, the gas relay needs to be checked and adjusted. But buchholz relay must have a vertically support when the check-up, traditional elevating platform is the disconnect-type, manual lift, will cause very big inconvenience to the check-up work like this, can't carry out quick clamping to buchholz calibration platform, to a great extent influences people's intensity of labour and work efficiency, and traditional elevating platform slides easily when installing buchholz relay and can't guarantee accuracy and the stability of position, because the elevating platform is too high can influence the precision of test, cross low then play the effect of holding up the rest.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic lifting device for buchholz relay check-up has solved complicated hard, the unsafe problem in location in the buchholz relay check-up installation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an automatic lifting device for buchholz relay check-up, including scissor type mechanism, screw driver, moving platform and backup pad, screw driver includes the slip table, moving platform and slip table are together fixed, the slip table can drive moving platform and remove, scissor type mechanism includes two sets of support arm framves, every group supports the arm frame and includes two intercrossing and articulated support arms together, the tip that has two support arms at least is articulated with the moving platform upside, the tip that has two support arms at least is articulated with the backup pad downside, and the tip of at least one support arm is sharp drive end, go up and down with driving scissor type mechanism.
Furthermore, an anti-skid base plate is arranged on the supporting plate.
Furthermore, a first connecting shaft and a second connecting shaft which are parallel to each other are connected between the two groups of support arm frames, two ends of the first connecting shaft are hinged to the intersection of the two support arms, each group of support arm frames is provided with a linear driving end, two ends of the second connecting shaft are respectively connected with the two linear driving ends, a first threaded hole is formed in the second connecting shaft, a first lead screw is arranged on the first threaded hole, and the first lead screw is connected with a stepping motor.
Furthermore, a third connecting shaft is connected between the two groups of support arm frames and is arranged in parallel with the second connecting shaft from top to bottom, two ends of the third connecting shaft are respectively connected with the other two linear driving ends, a second threaded hole is formed in the third connecting shaft, a manual rocking disc is arranged on the supporting plate, a second lead screw is arranged on the manual rocking disc and is matched with the second threaded hole, and the scissor mechanism can be lifted by rotating the manual rocking disc.
Furthermore, the screw driving device comprises a driver screw, a manual wheel disc is arranged at one end of the driver screw, and the mobile platform moves left and right by rotating the manual wheel disc.
The utility model has the advantages that:
an automatic lifting device for gas relay calibration is driven by a lead screw driver, so that a mobile platform is stable and rapid in the moving process; the anti-skidding base plate is arranged on the supporting plate, so that the position dislocation caused by the sliding of the gas relay is effectively prevented, the scissor mechanism is driven by the stepping motor, the speed in the lifting process is controllable, and the lifting height is accurately controlled; the lifting mechanism and the lead screw driver device are respectively provided with a manual driving mechanism, and when the stepping motor or the servo motor breaks down, the manual driving mechanism can be adopted to complete the movement and lifting of the device.
Drawings
Fig. 1 is a schematic structural view of an automatic lifting device for checking a buchholz relay.
Names corresponding to the marks in the figure: 1. the device comprises a scissor mechanism, 2, a support plate, 3, a manual rocking disc, 4, a stepping motor, 5, a moving platform, 6, a screw driver, 7, a servo motor, 11, a first support arm, 12, a second support arm, 21, an anti-skidding base plate, 31, a second screw, 41, a first screw, 61, a sliding table, 62, a driver screw, 63 and a manual wheel disc.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
The embodiment of the utility model provides a:
as shown in fig. 1, the utility model relates to an automatic lifting device for buchholz relay check-up, including scissor mechanism 1, moving platform 5, backup pad 2, anti-skidding backing plate 21, lead screw driver 6 and servo motor 7, wherein servo motor 7 connects lead screw driver 6, does lead screw driver 6 provides power. The screw driver 6 includes a driver screw 62, and the axial direction of the driver screw 62 is the left-right direction. The moving platform 5 is arranged above the screw driver 6, the bottom of the moving platform 5 is connected with the sliding table 61 in the screw driver 6 through screws, and when the screw driver 6 runs, the sliding table 61 moves synchronously with the moving platform 5. One end of the screw driver, which is not connected with the servo motor 7, is provided with a manual wheel disc 63, and if the servo motor 7 has an unexpected fault, the manual wheel disc 63 can be manually rotated to move the sliding table 61 and the moving platform 5.
The lower part of the scissor mechanism 1 is connected with a movable platform 5, and the upper part is connected with a supporting plate 2. The scissor mechanism 1 comprises two groups of support arms spaced front and back, each group of support arms comprises two support arms which are crossed with each other and respectively marked as a first support arm 11 and a second support arm 12, and a first connecting shaft is arranged at the crossed position of the two groups of support arms to connect the two groups of support arms together to realize scissor movement of the support arms. In each group of support arm frames, the lower end of a first support arm 11 is hinged with the upper side surface of the mobile platform, the upper end is assembled with the lower side surface of the support plate in a sliding way, the lower end of a second support arm 12 is assembled with the upper side surface of the mobile platform in a sliding way, the upper end is hinged with the lower side surface of the support plate, between the two groups of supporting arm frames, a linear driving end of a supporting arm positioned on the moving platform 5 is connected with a second connecting shaft, the second connecting shaft is parallel to the first connecting shaft, a first threaded hole is arranged in the middle of the second connecting shaft, a stepping motor 4 is arranged on the moving platform 5, a first lead screw 41 is arranged on the stepping motor 4, the first lead screw 41 is correspondingly matched with the first threaded hole, when the stepping motor 4 works normally, the first lead screw 41 rotates, and since the stepping motor 4 is fixed on the moving platform 5, the rotation of the first lead screw 41 will drive the scissor mechanism 1 to open and close, completing the lowering and raising of the support plate 2.
Between two sets of intercrossing's support arm, the straight line drive end that is located the support arm in backup pad 2 is connected with the third connecting axle, and the third connecting axle is parallel to each other with the second connecting axle, and the middle part is equipped with the second screw hole on the third connecting axle, is equipped with manual rocking disc 3 in backup pad 2, is equipped with second lead screw 31 on the manual rocking disc 3, and second lead screw 31 corresponds cooperation second screw hole, if step motor 4 is unusual, and manual rocking disc 3 also can replace step motor 4 to carry out lifting operation.
Be equipped with anti-skidding backing plate 21 in the top of backup pad 2, in the elevating platform lift in-process, can prevent effectively that buchholz relay from sliding, the setting of anti-skidding backing plate 21 can make buchholz relay be in the correct position accurately.
When the gas relay is to be checked, firstly, the model of the gas relay and a pipeline corresponding to the model are determined, then the servo motor 7 is started, the servo motor 7 drives the lead screw driver to start, at the moment, the sliding table 61 drives the moving platform 5 to move left and right along the direction of the lead screw 62 of the driver until the lower part of the corresponding pipeline is reached, then the stepping motor 4 is started, the functions of the first lead screws 31 and the second threaded holes are communicated, the scissor driving mechanism 1 is folded to ascend until the supporting plate 2 ascends to the corresponding height, and checking is carried out.
Claims (5)
1. The utility model provides an automatic lifting device for buchholz relay check-up, including scissor type mechanism, screw driver, moving platform and backup pad, screw driver includes the slip table, moving platform and slip table are together fixed, the slip table can drive moving platform and remove, scissor type mechanism includes two sets of support arm framves, every group supports the arm frame and includes two intercrossing and articulated support arms together, the tip that has two support arms at least is articulated with the moving platform upside, the tip that has two support arms at least is articulated with the backup pad downside, and the tip of at least one support arm is sharp drive end, go up and down with driving scissor type mechanism.
2. The automatic lifting device for the gas relay verification according to claim 1, characterized in that: and an anti-skid base plate is arranged on the supporting plate.
3. The automatic lifting device for the gas relay verification according to claim 1, characterized in that: the first connecting shaft and the second connecting shaft which are parallel to each other are connected between the two groups of supporting arm frames, the two ends of the first connecting shaft are hinged to the mutual intersection of the two supporting arms, each group of supporting arm frames is provided with a linear driving end, the two ends of the second connecting shaft are respectively connected with the two linear driving ends, the second connecting shaft is provided with a first threaded hole, the first threaded hole is provided with a first lead screw, and the first lead screw is connected with a stepping motor.
4. The automatic lifting device for the gas relay verification according to claim 3, characterized in that: the scissor type mechanism is characterized in that a third connecting shaft is further connected between the two groups of supporting arm frames, the third connecting shaft and the second connecting shaft are arranged in a vertical parallel mode, two ends of the third connecting shaft are respectively connected with the other two linear driving ends, a second threaded hole is formed in the third connecting shaft, a manual rocking disc is arranged on the supporting plate, a second lead screw is arranged on the manual rocking disc, the second lead screw is matched with the second threaded hole, and the scissor type mechanism can be lifted by rotating the manual rocking disc.
5. The automatic lifting device for the gas relay verification according to any one of claims 1 to 4, characterized in that: the screw driver comprises a driver screw, a manual wheel disc is arranged at one end of the driver screw, and the mobile platform moves left and right by rotating the manual wheel disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120502396.5U CN214473798U (en) | 2021-03-09 | 2021-03-09 | Automatic lifting device for gas relay calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120502396.5U CN214473798U (en) | 2021-03-09 | 2021-03-09 | Automatic lifting device for gas relay calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214473798U true CN214473798U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120502396.5U Active CN214473798U (en) | 2021-03-09 | 2021-03-09 | Automatic lifting device for gas relay calibration |
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| CN (1) | CN214473798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070740A (en) * | 2022-08-22 | 2022-09-20 | 广东电网有限责任公司佛山供电局 | Clamping system for gas relay |
-
2021
- 2021-03-09 CN CN202120502396.5U patent/CN214473798U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070740A (en) * | 2022-08-22 | 2022-09-20 | 广东电网有限责任公司佛山供电局 | Clamping system for gas relay |
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