CN201809095U - Winch free hook-falling adaptive brake control system - Google Patents
Winch free hook-falling adaptive brake control system Download PDFInfo
- Publication number
- CN201809095U CN201809095U CN2010205609742U CN201020560974U CN201809095U CN 201809095 U CN201809095 U CN 201809095U CN 2010205609742 U CN2010205609742 U CN 2010205609742U CN 201020560974 U CN201020560974 U CN 201020560974U CN 201809095 U CN201809095 U CN 201809095U
- Authority
- CN
- China
- Prior art keywords
- electronic amplifier
- winch
- links
- control system
- reducing valve
- 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 - Fee Related
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Abstract
The utility model relates to a winch free hook-falling adaptive brake control system, comprising a pedal controller and a brake cylinder, wherein the pedal controller is connected with an electronic amplifier by virtue of a pedal control circuit, the electronic amplifier is connected with a force testing device, the electronic amplifier is connected with a proportional electromagnet by virtue of a PWM (pulse width modulation) output control wire, the proportional electromagnet is connected with a proportional pressure reducing valve, and the proportional pressure reducing valve is connected with the brake cylinder. The utility model adopts the electronic amplifier to automatically select a compatible adjusting model according to the force which is applied on a winch and is tested in real-time by virtue of the force testing device, so as to adjust the input current curve of the proportional electromagnet, thus outputting a stable control pressure curve and realizing effective and stable winch braking.
Description
Technical field
The utility model relates to a kind of winch drag control system.
Background technology
The winch that hoisting crane was equipped with of medium and small tonnage all has free off the hook function, the principle of work of this function is that HM Hydraulic Motor and reductor and reel are thrown off fully, allow lifted weight do the movement of falling object, thereby driving reel by hoisting cable does and transfers rotation, realize that winch only relies on the self gravitation of weight to drive winch and rotates freely under the effect that does not have propulsive effort, this function is not only increased work efficiency greatly, but also the wearing and tearing of Hydraulic Elements have been reduced, yet, still there are some drawbacks in this technology: the delivery pressure of reducing valve can not be regulated, can not realize the actv. control of winch when causing weight of heavy to change greatly, also safety misadventure may take place when serious.
The utility model content
The technical problems to be solved in the utility model is the braking force that winch with free off the hook function can not change brake actuator with the mass change of weight, and a kind of free off the hook adaptive braking of the winch braking control system that can regulate the braking force of brake actuator is provided.
The technical solution of the utility model realizes in the following manner:
The free off the hook adaptive braking of a kind of winch braking control system, comprise foot controller and drg oil cylinder, foot controller links to each other with electronic amplifier by foot-operated control path, electronic amplifier links to each other with device for measuring force, electronic amplifier links to each other with proportion electro-magnet by the PWM output control line, proportion electro-magnet links to each other with proportional pressure-reducing valve, and proportional pressure-reducing valve links to each other with the drg oil cylinder.
Described electronic amplifier is the secondary transport and placing device.
Electronic amplifier in the utility model detects the adjusting model that the automatic selection of the suffered power of winch adapts in real time according to device for measuring force, thereby the arrival current curve of resize ratio electromagnet, final output pulsation-free control presssure curve realizes that winch is effective, the pulsation-free braking.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
The utility model is further described below with reference to embodiment (accompanying drawing), but does not limit the utility model.
As shown in Figure 1, the free off the hook adaptive braking of winch of the present utility model braking control system, foot controller 1 links to each other with electronic amplifier 4 by foot-operated control path 2, device for measuring force 3 also links to each other with electronic amplifier 4, electronic amplifier 4 links to each other with proportion electro-magnet 6 by PWM output control line 5, proportion electro-magnet 6 links to each other with proportional pressure-reducing valve 7, and proportional pressure-reducing valve 7 links to each other with drg oil cylinder 8.
Described electronic amplifier 4 is secondary transport and placing devices.
The utility model has taken into full account the adjustability of current signal, utilizes the stroke of the current control proportion electro-magnet that changes, thus the pressure of control ratio reducing valve output.The utility model changes by the angle of control foot controller 1, the voltage signal that output changes, be transferred to electronic amplifier 4 by foot-operated control path 2, device for measuring force 3 detects the suffered power of winch in real time simultaneously, and this signal also is transferred to electronic amplifier 4, the adjusting model that electronic amplifier 4 adapts by the automatic selection of two signals of foot controller 1 and device for measuring force 3, thereby the arrival current curve of resize ratio electromagnet 6, be transferred to the proportion electro-magnet 6 of proportional pressure-reducing valve 7 by PWM output control line 5, thereby the delivery pressure of control ratio reducing valve 7, finally affact drg oil cylinder 8, realize the free off the hook adaptive braking braking of winch.
Claims (2)
1. the free off the hook adaptive braking of winch braking control system, comprise foot controller (1) and drg oil cylinder (8), it is characterized in that: foot controller (1) links to each other with electronic amplifier (4) by foot-operated control path (2), electronic amplifier (4) links to each other with device for measuring force (3), electronic amplifier (4) links to each other with proportion electro-magnet (6) by PWM output control line (5), proportion electro-magnet (6) links to each other with proportional pressure-reducing valve (7), and proportional pressure-reducing valve (7) links to each other with drg oil cylinder (8).
2. the free off the hook adaptive braking of winch according to claim 1 braking control system, it is characterized in that: described electronic amplifier (4) is the secondary transport and placing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205609742U CN201809095U (en) | 2010-10-14 | 2010-10-14 | Winch free hook-falling adaptive brake control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205609742U CN201809095U (en) | 2010-10-14 | 2010-10-14 | Winch free hook-falling adaptive brake control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201809095U true CN201809095U (en) | 2011-04-27 |
Family
ID=43892035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205609742U Expired - Fee Related CN201809095U (en) | 2010-10-14 | 2010-10-14 | Winch free hook-falling adaptive brake control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201809095U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359594A (en) * | 2013-07-30 | 2013-10-23 | 西安煤矿机械有限公司 | Cage locking swing deck |
| CN110844787A (en) * | 2019-11-20 | 2020-02-28 | 浙江三一装备有限公司 | Free hook falling control system and crane |
-
2010
- 2010-10-14 CN CN2010205609742U patent/CN201809095U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359594A (en) * | 2013-07-30 | 2013-10-23 | 西安煤矿机械有限公司 | Cage locking swing deck |
| CN103359594B (en) * | 2013-07-30 | 2016-01-20 | 西安煤矿机械有限公司 | A kind of lock tank cage chair |
| CN110844787A (en) * | 2019-11-20 | 2020-02-28 | 浙江三一装备有限公司 | Free hook falling control system and crane |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20161014 |