CN204327061U - Little tonnage horizontal directional drilling machine unit head region automatic protective system - Google Patents
Little tonnage horizontal directional drilling machine unit head region automatic protective system Download PDFInfo
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- CN204327061U CN204327061U CN201420641866.6U CN201420641866U CN204327061U CN 204327061 U CN204327061 U CN 204327061U CN 201420641866 U CN201420641866 U CN 201420641866U CN 204327061 U CN204327061 U CN 204327061U
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- relay
- unit head
- inductive switch
- switch
- contracting arm
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Abstract
The utility model discloses a kind of little tonnage horizontal directional drilling machine unit head region automatic protective system, comprise battery main switch, battery, key switch and unit head high-speed electromagnetic valve, also comprise contracting arm inductive switch, drilling cramp rear area inductive switch and relay K, relay K, the ACC end of key switch connects the 87a end of 1 end of contracting arm inductive switch, 1 end of drilling cramp rear area inductive switch and relay K constant close contact, and 2 ends of contracting arm inductive switch and drilling cramp rear area inductive switch connect the positive terminal of K and K relay coil respectively; Relay K constant close contact 30 end connects the 87a end of relay K constant close contact, and 30 ends of K relay connect the positive terminal of unit head high-speed electromagnetic valve.The utility model can be protected little tonnage horizontal directional drilling machine unit head, contracting arm and drilling cramp, avoids the damage of unit head, contracting arm and drilling cramp, the construction safety of protection directional drilling machine.
Description
Technical field
The utility model relates to a kind of unit head area operation automatic protective system of engineering machinery, particularly a kind of little tonnage horizontal directional drilling machine unit head region automatic protective system.
Background technology
During little tonnage horizontal directional drilling machine construction, unit head high-speed cruising sometimes on drilling cramp, concerning the operator be not familiar with, sometimes contracting arm is not also retracted, be difficult near unit head high-speed cruising to contracting arm stop immediately, cause breaking unit head and contracting arm, unit head high-speed cruising is also difficult to drilling cramp rear end stop immediately in addition, thus break the baffle plate of drilling cramp rear end, time serious, unit head falls down from drilling cramp rear end, there is major accident, drilling cramp increases contracting arm inductive switch and rear area inductive switch, can effectively prevent unit head from drilling cramp, breaking unit head during high-speed cruising, contracting arm or fall down from drilling cramp rear end, avoid unit head, the damage of contracting arm and drilling cramp, thus the construction safety of protection directional drilling machine.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides little tonnage horizontal directional drilling machine unit head region automatic protective system, can avoid the damage of unit head, contracting arm and drilling cramp, thus the construction safety of available protecting directional drilling machine.
To achieve these goals, the technical solution adopted in the utility model is: a kind of little tonnage horizontal directional drilling machine unit head region automatic protective system, comprise battery main switch, battery, key switch and unit head high-speed electromagnetic valve, the negative pole of described battery is by battery main switch ground connection, the positive pole of battery is connected to the B end of key switch, also comprise contracting arm inductive switch, drilling cramp rear area inductive switch and relay K, relay K, the ACC end of described key switch connects 1 end of contracting arm inductive switch, 1 end of drilling cramp rear area inductive switch and the 87a end of relay K constant close contact, 2 ends of contracting arm inductive switch and drilling cramp rear area inductive switch connect the positive terminal of relay K and relay K coil respectively, the equal ground connection of 3 end of contracting arm inductive switch and drilling cramp rear area inductive switch, the negative pole end ground connection of relay K and relay K, relay K constant close contact 30 end connects the 87a end of relay K constant close contact, and 30 ends of relay K connect the positive terminal of unit head high-speed electromagnetic valve, the negative pole end ground connection of unit head high-speed electromagnetic valve.
Also fuse is connected with between described battery and key switch.
Contracting arm inductive switch, drilling cramp rear area inductive switch are contactless electromagnetic induction switch.
The beneficial effects of the utility model are, during little tonnage horizontal directional drilling machine construction, sometimes unit head high-speed cruising on drilling cramp, when contracting arm inductive switch detect contracting arm be in stretch out state time, limit switch inner contact closes, and relay K coil obtains electric, and its constant close contact 87a, 30 disconnects, unit head high-speed electromagnetic valve is without electricity, and high-speed cruising stops; When unit head high-speed cruising is to drilling cramp rear; drilling cramp rear area inductive switch inner contact closes; relay K coil obtains electric; its constant close contact 87a, 30 disconnects, and unit head high-speed electromagnetic valve is without electricity, and high-speed cruising stops; such unit head high-speed cruising when contracting arm stretches out or runs to drilling cramp rear area can stop automatically; avoid the damage of unit head, contracting arm and drilling cramp, the construction safety of protection directional drilling machine, reaches the purpose of this utility model.
Accompanying drawing explanation
Fig. 1 is the utility model circuit structure diagram.
In figure: 1, battery main switch, 2, battery, 3, fuse, 4, key switch, 5, contracting arm inductive switch, 6, drilling cramp rear area inductive switch, 7, unit head high-speed electromagnetic valve, 8, relay K, 9, relay K.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of little tonnage horizontal directional drilling machine unit head region automatic protective system, comprise battery main switch 1, fuse 3, battery 2, key switch 4 and unit head high-speed electromagnetic valve 7, the negative pole of described battery 2 is by battery main switch 1 ground connection, the positive pole of battery 2 is connected to the B end of key switch 4 by fuse 1, native system also comprises contracting arm inductive switch 5, drilling cramp rear area inductive switch 6 and relay K 9, relay K 8, contracting arm inductive switch, drilling cramp rear area inductive switch is contactless electromagnetic induction switch, the ACC end of described key switch 4 connects 1 end of contracting arm inductive switch 5, 1 end of drilling cramp rear area inductive switch and the 87a end of relay K constant close contact, 2 ends of contracting arm inductive switch 5 and drilling cramp rear area inductive switch 6 connect the positive terminal of relay K 9 and relay K 8 coil respectively, the equal ground connection of 3 end of contracting arm inductive switch and drilling cramp rear area inductive switch, the negative pole end ground connection of relay K 9 and relay K 8, relay K constant close contact 30 end connects the 87a end of relay K constant close contact, and 30 ends of relay K connect the positive terminal of unit head high-speed electromagnetic valve 7, the negative pole end ground connection of unit head high-speed electromagnetic valve 7.
During little tonnage horizontal directional drilling machine construction, sometimes unit head high-speed cruising on drilling cramp, when contracting arm inductive switch detect contracting arm be in stretch out state time, limit switch inner contact closes, relay K coil obtains electric, its constant close contact 87a, 30 disconnects, and unit head high-speed electromagnetic valve is without electricity, and high-speed cruising stops; When unit head high-speed cruising is to drilling cramp rear; drilling cramp rear area inductive switch inner contact closes; relay K coil obtains electric; its constant close contact 87a, 30 disconnects, and unit head high-speed electromagnetic valve is without electricity, and high-speed cruising stops; such unit head high-speed cruising when contracting arm stretches out or runs to drilling cramp rear area can stop automatically; avoid the damage of unit head, contracting arm and drilling cramp, the construction safety of protection directional drilling machine, reaches the purpose of this utility model.
Claims (3)
1. one kind little tonnage horizontal directional drilling machine unit head region automatic protective system, comprise battery main switch, battery, key switch and unit head high-speed electromagnetic valve, the negative pole of described battery is by battery main switch ground connection, the positive pole of battery is connected to the B end of key switch, it is characterized in that, also comprise contracting arm inductive switch, drilling cramp rear area inductive switch and relay K, relay K, the ACC end of described key switch connects 1 end of contracting arm inductive switch, 1 end of drilling cramp rear area inductive switch and the 87a end of relay K constant close contact, 2 ends of contracting arm inductive switch and drilling cramp rear area inductive switch connect the positive terminal of relay K and relay K coil respectively, the equal ground connection of 3 end of contracting arm inductive switch and drilling cramp rear area inductive switch, the negative pole end ground connection of relay K and relay K, relay K constant close contact 30 end connects the 87a end of relay K constant close contact, and 30 ends of relay K connect the positive terminal of unit head high-speed electromagnetic valve, the negative pole end ground connection of unit head high-speed electromagnetic valve.
2. one according to claim 1 little tonnage horizontal directional drilling machine unit head region automatic protective system, is characterized in that, be also connected with fuse between described battery and key switch.
3. one according to claim 1 little tonnage horizontal directional drilling machine unit head region automatic protective system, is characterized in that, contracting arm inductive switch, drilling cramp rear area inductive switch are contactless electromagnetic induction switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641866.6U CN204327061U (en) | 2014-10-31 | 2014-10-31 | Little tonnage horizontal directional drilling machine unit head region automatic protective system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641866.6U CN204327061U (en) | 2014-10-31 | 2014-10-31 | Little tonnage horizontal directional drilling machine unit head region automatic protective system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327061U true CN204327061U (en) | 2015-05-13 |
Family
ID=53163433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420641866.6U Active CN204327061U (en) | 2014-10-31 | 2014-10-31 | Little tonnage horizontal directional drilling machine unit head region automatic protective system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327061U (en) |
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2014
- 2014-10-31 CN CN201420641866.6U patent/CN204327061U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |