CN202390877U - High voltage control device used for large type excavator - Google Patents
High voltage control device used for large type excavator Download PDFInfo
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- CN202390877U CN202390877U CN2011205121678U CN201120512167U CN202390877U CN 202390877 U CN202390877 U CN 202390877U CN 2011205121678 U CN2011205121678 U CN 2011205121678U CN 201120512167 U CN201120512167 U CN 201120512167U CN 202390877 U CN202390877 U CN 202390877U
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- load switch
- control device
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Abstract
The utility model discloses a high voltage control device used for a large type excavator. The device comprises a high-voltage load switch, a high-voltage current transformer, a high-voltage voltage transformer, a high-voltage isolating switch, a high-voltage vacuum contactor and a microcomputer protector, wherein a high-voltage major loop cable is introduced from the bottom of the device, is firstly connected in from the upper end of the high-voltage load switch, then connected with the high-voltage isolating switch through the high-voltage current transformer, is connected with the high-voltage vacuum contactor, and is finally output onto a main machine of the excavator, the high-voltage voltage transformer is connected between the high-voltage load switch and the high-voltage current transformer in parallel, the microcomputer protector is respectively connected with the high-voltage voltage transformer and the high-voltage current transformer, and signals sampled by the high-voltage voltage transformer and the high-voltage current transformer are detected and protected. The high voltage control device used for the large type excavator disclosed by the utility model has a simple structure and strong practicability, a high voltage part of the excavator can be operated and controlled, and multiple protection is provided.
Description
Technical field
The utility model relates to mining industry equipment extraction technique field, particularly a kind of high-pressure control device that is used for large excavator.
Background technology
Along with the continuous maximization and the centralization of China's mine industry exploitation, extraction technique and technology have obtained increasing development, and the glory-hole district adopts superhuge excavating equipment to become main development trend already.At present, the maximum machine equalization extractive equipment that domestic mining activities uses is 75 cubes of monobucket capacity, and its power is the 6KV high voltage source, therefore needs a kind of high-pressure control device that is used for the large excavator use of development.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provide a kind of simple in structure, can control the excavator high-pressure section, and multiple protective is provided, the practical high-pressure control device that is used for large excavator.
The technical scheme that the utility model solves above-mentioned technical problem is: comprise high voltage load switch, high-tension current inductor, high voltage potential transformer, high voltage isolator, high-pressure vacuum contactor and Microcomputer Protection device; Described high pressure major loop cable is introduced from bottom of device; Insert from the high voltage load switch upper end earlier; Be connected on the high voltage isolator through high-tension current inductor; Connect high-pressure vacuum contactor then, output at last on the excavator main frame, described high voltage potential transformer is connected in parallel between high voltage load switch and the high-tension current inductor; The Microcomputer Protection device is connected with high-tension current inductor with high voltage potential transformer respectively, and the signal of high voltage potential transformer and high-tension current inductor sampling is detected protection.
Further, before high pressure major loop cable inserts high voltage load switch, also connect an arrester.
Further; Also comprise fuse, overvoltage protection and electrification display; Described one branch road of being connected successively by fuse, overvoltage protection and electrification display is parallel between high-tension current inductor and the high voltage isolator, and another branch road by overvoltage protection and electrification display series connection is parallel between high-pressure vacuum contactor and the excavator main frame.
Because adopt technique scheme, the beneficial effect of the utility model is: the utility model is rational in infrastructure, dependable performance can satisfy the operating mode of Large Electric excavator well.The utility model adopts the high tension voltage current transformer that the electric current and the voltage of main control loop are sampled; Send into the Microcomputer Protection device and detect protection; The Microcomputer Protection device sends control instruction according to the performance parameter of setting; The accurate and reliable multifunction protection is provided, avoids the generation of personnel's device security accident, and can effectively prolong the normal application life of equipment.Therefore this electric excavator high-pressure control device complete function is reliable, practical.
Description of drawings
Fig. 1 is the front view of the utility model.
Fig. 2 is the sectional view () of the utility model.
Fig. 3 is the sectional view (two) of the utility model.
Fig. 4 is the circuit theory diagrams of the utility model.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation:
Like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4; A kind of high-pressure control device that is used for large excavator; Comprise high voltage load switch 1, high-tension current inductor 6, high voltage potential transformer 5, high voltage isolator 2, high-pressure vacuum contactor 7 and Microcomputer Protection device 10, described high pressure major loop cable is introduced from bottom of device, inserts from high voltage load switch 1 upper end earlier; Be connected on the high voltage isolator 2 through high-tension current inductor 6; Connect high-pressure vacuum contactor 7 then, output at last on the excavator main frame, described high voltage potential transformer 5 is connected in parallel between high voltage load switch 1 and the high-tension current inductor 6; Microcomputer Protection device 10 is connected with high-tension current inductor 6 with high voltage potential transformer 5 respectively, and the signal that high voltage potential transformer 5 and high-tension current inductor 6 are sampled detects protection.Before high pressure major loop cable inserts high voltage load switch 1, also connect an arrester 4.This device also comprises fuse 3, overvoltage protection 9 and electrification display 8; Described one branch road of being connected successively by fuse 3, overvoltage protection 9 and electrification display 8 is parallel between high-tension current inductor 6 and the high voltage isolator 2, and another branch road by overvoltage protection 9 and electrification display 8 series connection is parallel between high-pressure vacuum contactor 7 and the excavator main frame.Described high voltage load switch 1 all has hand behaviour mechanism with high voltage isolator 2, can carry out lever operatedly in the device outside, and high voltage load switch 1 allows under the on-load situation, to operate; Microcomputer Protection device 10 is provided with its functional parameter on the panel too outside, and it detects the protection situation and can show the operate as normal of accurately reliable control appliance in real time.
Claims (3)
1. high-pressure control device that is used for large excavator; It is characterized in that: comprise high voltage load switch, high-tension current inductor, high voltage potential transformer, high voltage isolator, high-pressure vacuum contactor and Microcomputer Protection device; Described high pressure major loop cable is introduced from bottom of device; Insert from the high voltage load switch upper end earlier, be connected on the high voltage isolator, connect high-pressure vacuum contactor then through high-tension current inductor; Output at last on the excavator main frame; Described high voltage potential transformer is connected in parallel between high voltage load switch and the high-tension current inductor, and the Microcomputer Protection device is connected with high-tension current inductor with high voltage potential transformer respectively, and the signal of high voltage potential transformer and high-tension current inductor sampling is detected protection.
2. the high-pressure control device that is used for large excavator according to claim 1 is characterized in that: before high pressure major loop cable inserts high voltage load switch, also connect an arrester.
3. the high-pressure control device that is used for large excavator according to claim 1; It is characterized in that: also comprise fuse, overvoltage protection and electrification display; Described one branch road of being connected successively by fuse, overvoltage protection and electrification display is parallel between high-tension current inductor and the high voltage isolator, and another branch road by overvoltage protection and electrification display series connection is parallel between high-pressure vacuum contactor and the excavator main frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205121678U CN202390877U (en) | 2011-12-11 | 2011-12-11 | High voltage control device used for large type excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205121678U CN202390877U (en) | 2011-12-11 | 2011-12-11 | High voltage control device used for large type excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202390877U true CN202390877U (en) | 2012-08-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205121678U Expired - Fee Related CN202390877U (en) | 2011-12-11 | 2011-12-11 | High voltage control device used for large type excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202390877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674877A (en) * | 2015-02-12 | 2015-06-03 | 徐州徐工挖掘机械有限公司 | Electric hydraulic excavator control system |
-
2011
- 2011-12-11 CN CN2011205121678U patent/CN202390877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674877A (en) * | 2015-02-12 | 2015-06-03 | 徐州徐工挖掘机械有限公司 | Electric hydraulic excavator control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20141211 |
|
| EXPY | Termination of patent right or utility model |