CN203498005U - Screw jack automatic control system - Google Patents
Screw jack automatic control system Download PDFInfo
- Publication number
- CN203498005U CN203498005U CN201320589405.4U CN201320589405U CN203498005U CN 203498005 U CN203498005 U CN 203498005U CN 201320589405 U CN201320589405 U CN 201320589405U CN 203498005 U CN203498005 U CN 203498005U
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- switch
- starting switch
- parallel
- line end
- intermediate relay
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Abstract
The utility model discloses a screw jack automatic control system in the field of load-carrying equipment. The screw jack automatic control system comprises a motor driver connected to a power supply via a power switch. A power line between the motor driver and an air breaker is in series connection with an overcurrent relay and a control circuit that are connected together in parallel. The control circuit includes a starting switch unit, a contact circuit and an intermediate relay that are connected together in series. The starting switch unit is composed of a forward rotating starting switch and a counter-rotating starting switch that are connected in parallel. The contact switch is composed of an overload relay normally open contact and an intermediate relay normally open contact that are connected in parallel. A signal control end of the motor driver includes a green wire end, a yellow wire end and a blue wire end. The blue wire end is in series connection with an intermediate relay normally closed switch and a stroke switch that are connected in parallel, and then is connected with the green wire end and the yellow wire respectively via the forward rotating starting switch and the counter-rotating starting switch. Problems of slow processes for coupling and decoupling semitrailers are solved to make coupling and decoupling easier. The screw jack automatic control system can be applied to a screw jack.
Description
Technical field
The utility model relates to a kind of lifting screw, particularly a kind of lifting screw control system.
Background technology
Lifting screw of the prior art is applicable to carrying and the lifting after superimposed trailer and special trailer dislodging, while also can be used for various vehicles and equipment fixed operation as very heavy act holder, during work, by manually operated mode, control bracing frame knee-action, thereby the jack-up of realizing jack is fallen action after rise, its weak point is: superimposed trailer of the prior art plucks, fills that extension process is slow, and the operating time is long, and efficiency is low.
Utility model content
The purpose of this utility model is to provide a kind of lifting screw autonomous cruise speed system, improves the degree of automation that jack is controlled, and makes staff operate handy and safe more, increases work efficiency.
The purpose of this utility model is achieved in that a kind of lifting screw autonomous cruise speed system, comprise through source switch QS and be connected to the motor driver on power supply, between described motor driver and air circuit breaker, on power lead, be serially connected with overcurrent relay I/DL and the control circuit being connected in parallel, described control circuit comprises the starting switch unit being cascaded, contact circuit and intermediate relay KA, described starting switch unit is comprised of forward starting switch SA1 in parallel and reversion starting switch SA2, described contact circuit is comprised of over current relay open contact I/DL1 in parallel and intermediate relay open contact KA2, the signal control end of described motor driver comprises green line end, yellow line end and blue line end, described blue line end and intermediate relay normally closed switch KA1 in parallel are connected with yellow line end with blue line end respectively with after travel switch XK serial connection, the intermediate relay normally closed switch KA1 of described parallel connection, between travel switch XK and green line end, be serially connected with forward starting switch SA3, the intermediate relay normally closed switch KA1 of described parallel connection, between travel switch XK and yellow line end, be serially connected with reversion starting switch SA4, forward starting switch SA1 described in two, SA3 synchronous interaction together, starting switch SA2 reverses described in two, SA4 synchronous interaction together.
During the utility model work, press source switch QS, when needs are seted out, press the forward starting switch SA1 of synchronous interaction, SA3, now bluish-green path is connected, motor forward, jack feet fast-descending, when feet contacts to earth, while affording certain pressure, when pressure converts electric current to and is detected by over current relay, over current relay triggering work, now, intermediate relay KA obtains electric work, intermediate relay normally closed contact KA1 disconnects, bluish-green path disconnects, motor stops operating, intermediate relay open contact KA2 is closed, form self-locking, guarantee that intermediate relay KA continues electricly, by the slow shelves of manual switchover jack, make travel switch closed, bluish-green path is connected again, jack is carried at a slow speed after correct position, unclamp forward starting switch SA1, SA3 stops motor action, when needs dresses is hung, press reversion starting switch SA2, SA4, principle of work is the same, and if the electric current that changes into of the pressure that is subject to of feet while being less than certain numerical value, trigger equally over current relay and move.Compared with prior art, the beneficial effects of the utility model are: the utility model operating process is easier, have improved jack work efficiency, and have improved the degree of automation that jack is controlled.The utility model can be used in lifting screw.
Safety while working in order to strengthen the utility model, is serially connected with air circuit breaker AC between described source switch QS and motor driver.
Accompanying drawing explanation
Fig. 1 is the utility model electric control theory figure.
The specific embodiment
A kind of lifting screw autonomous cruise speed system as shown in Figure 1, comprise through source switch QS and be connected to the motor driver on power supply, between motor driver and air circuit breaker, on power lead, be serially connected with overcurrent relay I/DL and the control circuit being connected in parallel, control circuit comprises the starting switch unit being cascaded, contact circuit and intermediate relay KA, starting switch unit is comprised of forward starting switch SA1 in parallel and reversion starting switch SA2, contact circuit is comprised of over current relay open contact I/DL1 in parallel and intermediate relay open contact KA2, the signal control end of motor driver comprises green line end, yellow line end and blue line end, blue line end and intermediate relay normally closed switch KA1 in parallel are connected with yellow line end with blue line end respectively with after travel switch XK serial connection, intermediate relay normally closed switch KA1 in parallel, between travel switch XK and green line end, be serially connected with forward starting switch SA3, intermediate relay normally closed switch KA1 in parallel, between travel switch XK and yellow line end, be serially connected with reversion starting switch SA4, two forward starting switch SA1, SA3 synchronous interaction together, two reversion starting switch SA2, SA4 synchronous interaction together, between source switch QS and motor driver, be serially connected with air circuit breaker AC.
During the utility model work, press source switch QS, when needs are seted out, press the forward starting switch SA1 of synchronous interaction, SA3, now bluish-green path is connected, motor forward, jack feet fast-descending, when feet contacts to earth, while affording certain pressure, when pressure converts electric current to and is detected by over current relay, over current relay triggering work, now, intermediate relay KA obtains electric work, intermediate relay normally closed contact KA1 disconnects, bluish-green path disconnects, motor stops operating, intermediate relay open contact KA2 is closed, form self-locking, guarantee that intermediate relay KA continues electricly, by the slow shelves of manual switchover jack, make travel switch closed, bluish-green path is connected again, jack is carried at a slow speed after correct position, unclamp forward starting switch SA1, SA3 stops motor action, when needs dresses is hung, press reversion starting switch SA2, SA4, principle of work is the same, and if the electric current that changes into of the pressure that is subject to of feet while being less than certain numerical value, trigger equally over current relay and move.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection domain of the present utility model.
Claims (2)
1. a lifting screw autonomous cruise speed system, it is characterized in that, comprise through source switch (QS) and be connected to the motor driver on power supply, between described motor driver and air circuit breaker, on power lead, be serially connected with the overcurrent relay (I/DL) and the control circuit that are connected in parallel, described control circuit comprises the starting switch unit being cascaded, contact circuit and intermediate relay (KA), described starting switch unit is comprised of forward starting switch (SA1) in parallel and reversion starting switch (SA2), described contact circuit is comprised of over current relay open contact (I/DL1) in parallel and intermediate relay open contact (KA2), the signal control end of described motor driver comprises green line end, yellow line end and blue line end, described blue line end and intermediate relay normally closed switch (KA1) in parallel are connected with yellow line end with blue line end respectively with after travel switch (XK) serial connection, the intermediate relay normally closed switch (KA1) of described parallel connection, between travel switch (XK) and green line end, be serially connected with forward starting switch (SA3), the intermediate relay normally closed switch (KA1) of described parallel connection, between travel switch (XK) and yellow line end, be serially connected with reversion starting switch (SA4), forward starting switch (SA1 described in two, SA3) synchronous interaction together, starting switch (SA2 reverses described in two, SA4) synchronous interaction together.
2. a kind of lifting screw autonomous cruise speed system according to claim 1, is characterized in that, is serially connected with air circuit breaker (AC) between described source switch (QS) and motor driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589405.4U CN203498005U (en) | 2013-09-24 | 2013-09-24 | Screw jack automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589405.4U CN203498005U (en) | 2013-09-24 | 2013-09-24 | Screw jack automatic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203498005U true CN203498005U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320589405.4U Expired - Fee Related CN203498005U (en) | 2013-09-24 | 2013-09-24 | Screw jack automatic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203498005U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675129A (en) * | 2020-05-29 | 2020-09-18 | 山东建筑大学 | Electric screw following jack and control method thereof |
| CN112027958A (en) * | 2020-06-28 | 2020-12-04 | 杭州职业技术学院 | Mobile jack based on intelligent control method |
-
2013
- 2013-09-24 CN CN201320589405.4U patent/CN203498005U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675129A (en) * | 2020-05-29 | 2020-09-18 | 山东建筑大学 | Electric screw following jack and control method thereof |
| CN112027958A (en) * | 2020-06-28 | 2020-12-04 | 杭州职业技术学院 | Mobile jack based on intelligent control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20190924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |