CN201479068U - Hand-hold inching positive and negative device - Google Patents
Hand-hold inching positive and negative device Download PDFInfo
- Publication number
- CN201479068U CN201479068U CN2009203053293U CN200920305329U CN201479068U CN 201479068 U CN201479068 U CN 201479068U CN 2009203053293 U CN2009203053293 U CN 2009203053293U CN 200920305329 U CN200920305329 U CN 200920305329U CN 201479068 U CN201479068 U CN 201479068U
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- CN
- China
- Prior art keywords
- positive
- closed circuit
- potentiometer
- inching
- negative device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a positive and negative device, in particular to a hand-hold inching positive and negative device used in a profile steel twisted straightening machine, which comprises a generator, wherein a phase line in the generator is connected with a closed circuit, wherein the R end, the S end and the T end in the closed circuit are respectively connected with alternating current L1, L2 and L3, circuit breakers and contactors are respectively arranged between the R end and the L1, between the S end and the L2 and between the T end and the L3, a positive direction switch, a negative direction switch and a public end are arranged in the closed circuit, and one side of the closed circuit is provided with a potentiometer. The utility model provides the inching positive and negative device with the advantages of simple and convenient operation, high atomization degree and stable operation.
Description
Technical field
The utility model is a kind of positive deinstall, and particularly a kind of shaped steel that is used for is rectified the positive deinstall of holding type crawl of turning round straightener.
Background technology is surplus
Positive deinstall of the prior art all is non-automation, inconvenient operation, and cause unnecessary loss easily.
Summary of the invention
The utility model mainly is to solve the deficiencies in the prior art, provides a kind of easy and simple to handle, automaticity height, and the positive deinstall of the crawl that operates steadily.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
The positive deinstall of a kind of holding type crawl, comprise motor, phase line in the described motor connects closed circuit, R end in the described closed circuit, S end and T end are connected alternating current L1 end, L2 end and L3 end respectively, are connected with circuit breaker and contactor respectively between described R end, S end and T end and L1 end, L2 end and L3 end; Be provided with forward on ﹠ off switch, reverser key and common port in the described closed circuit, a side of closed circuit is provided with potentiometer.During work, the circuit breaker that closes fixes to clamp workpiece two on equipment, presses knob, makes the contactor adhesive, and workpiece twists left, presses the forward on ﹠ off switch; The workpiece distortion is pressed the reverser key to the right; The turn potentiometer makes machine operation, and potentiometer is rotated in the size that size depends on the workpiece distortion; Decontrol forward on ﹠ off switch and reverser key, machine is shut down, take off workpiece.
As preferably, described forward switch forms the loop by common port, and described reverser forms the loop by common port.
As preferably, described phase line comprises U end, V end and W end; Described potentiometer and V1 end, V2 end and GND end form the potentiometer control loop.
Therefore, the positive deinstall of holding type crawl of the present utility model provides a kind of control simple, and error rate is low, the positive deinstall of crawl that stability is high.
Description of drawings
Fig. 1 is a section structure schematic diagram of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as shown in Figure 1, the positive deinstall of a kind of holding type crawl, comprise engine 1, phase line 2 in the engine 1 connects closed circuit 15, phase line 2 comprises U end, V end and W end, R end 7 in the closed circuit 15, S end 8 and T end 9 are connected alternating current L1 end 12, L2 end 13 and L3 end 14 respectively, and R end 7, S end 8 and T end 9 and L1 end 12, L2 end 13 and 14 at L3 end are connected with circuit breaker 11 and contactor 10 respectively; Be provided with forward on ﹠ off switch 4, reverser key 5 and common port 6 in the closed circuit 15, forward on ﹠ off switch 4 forms the loop by common port 6, reverser key 5 forms the loop by common port 6, one side of closed circuit 15 is provided with potentiometer 3, and potentiometer 3 forms the potentiometer control loop with V1 end, V2 end and GND end.
Claims (3)
1. positive deinstall of holding type crawl, comprise engine (1), its spy states to levy and is: the phase line (2) in the described motor (1) connects closed circuit (15), R end (7) in the described closed circuit (15), S end (8) and T end (9) are connected alternating current L1 end (12), L2 end (13) and L3 end (14) respectively, are connected with circuit breaker (11) and contactor (10) respectively between described R end (7), S end (8) and T end (9) and L1 end (12), L2 end (13) and L3 end (14); Be provided with forward on ﹠ off switch (4), reverser key (5) and common port (6) in the described closed circuit (15), a side of closed circuit (15) is provided with potentiometer (3).
2. the positive deinstall of holding type crawl according to claim 1 is characterized in that: described forward on ﹠ off switch (4) forms the loop by common port (6), and described reverser key (5) forms the loop by common port (6).
3. the positive deinstall of holding type crawl according to claim 1 and 2 is characterized in that: described phase line (2) comprises U end, V end and W end; Described potentiometer (3) forms the potentiometer control loop with V1 end, V2 end and GND end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203053293U CN201479068U (en) | 2009-06-30 | 2009-06-30 | Hand-hold inching positive and negative device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203053293U CN201479068U (en) | 2009-06-30 | 2009-06-30 | Hand-hold inching positive and negative device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201479068U true CN201479068U (en) | 2010-05-19 |
Family
ID=42415322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203053293U Expired - Lifetime CN201479068U (en) | 2009-06-30 | 2009-06-30 | Hand-hold inching positive and negative device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201479068U (en) |
-
2009
- 2009-06-30 CN CN2009203053293U patent/CN201479068U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |