CN101830401B - Crane safety mechanism control system - Google Patents
Crane safety mechanism control system Download PDFInfo
- Publication number
- CN101830401B CN101830401B CN2010101779912A CN201010177991A CN101830401B CN 101830401 B CN101830401 B CN 101830401B CN 2010101779912 A CN2010101779912 A CN 2010101779912A CN 201010177991 A CN201010177991 A CN 201010177991A CN 101830401 B CN101830401 B CN 101830401B
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- contact
- button switch
- crane
- ratchet
- electromagnet
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Abstract
The invention provides a crane safety mechanism control system. The system is arranged on a crane in an electric control mode of a pawl, and the pawl is pulled by controlling an electromagnet in the system so as to fulfill the aim of achieving safety protection on the crane. The system has the advantages that: the aim of achieving safety protection on the crane is fulfilled; improvements are made on used equipment, so the cost is low; and the system is simple and convenient to operate and has sensitive action after modification.
Description
Technical field
The present invention relates to the crane safety protection mechanism.
Background technology
Crane hoisting mechanism is for preventing safety misadventure; One cover ratchet and pawl arrangement is installed on the elevator cylinder usually to be protected; When elevator skid, slip bar, when slipping fault such as hook, brake failure; By ratchet and pawl mechanism the elevator cylinder is realized mechanical locking, the generation of avoid falling bar, falling pernicious safety misadventures such as hook.Generally move through control lever control ratchet at operator's compartment, realize the folding condition of ratchet, ratchet by the driver.When crane is worked, open ratchet winch can be rotated freely; When crane is in action maintenance or Parking state, click is combined, bar or the off the hook action that will fall is locked, reaches the purpose of safety precaution.
Existing ratchet mode has machinery and two kinds of modes of hydraulic pressure usually.
Mechanical control method is comparatively easy, through seizing wire of control lever pulling, can be opened it by steel rope direct pull ratchet again.When resetting control lever is unclamped, reset by the retracing spring drive ratchet that is installed on the ratchet.This mode shortcoming is to need often to refuel to safeguard, and steel rope receives open-air rain erosion, and rust extremely in sleeve pipe, cause control lever to pull phenomenons such as motionless, that steel rope fractures, so fault rate is higher easily.
Hydraulic control mode is through the pressure source driving execution mechanism of auxiliary oil pump; Actuating unit drives ratchet and realizes opening and closing movement; This mode needs special accessory and accessory device, mode exist technical sophistication, cost higher, on rebuilding old equipment, be not easy shortcoming such as realization.
Summary of the invention
The technical matters that the present invention will solve is: a kind of crane safety mechanism control system is provided, can reaches the purpose of crane safety protection preferably, and with low cost.
The present invention solves the problems of the technologies described above the technical scheme of being taked to be: crane safety mechanism control system is characterized in that: it consists of the following components:
Button switch is located on the control lever, and a contact of button switch connects with the button switch pig-tail wire, and another contact is done bonding and handled;
Electromagnet, the crane structure of ratchet below partly is provided with attachment point, and the electromagnet aft mount links to each other with attachment point; The electromagnet head is provided with spring, and spring connects pull bar, and the pull bar and the ratchet back side are hinged; Be wound with coil on the electromagnet, coil comprises positive pole and negative pole, and wherein negative pole is done the bonding processing;
Intermediate relay comprises first main contact, second main contact, the first control end contact and the second control end contact; Wherein first main contact links to each other with the positive pole of said magnet coil; The first control end contact links to each other with described button switch pig-tail wire; The second control end contact connects the 24V positive source;
Travel switch comprises first normally closed contact, second normally closed contact, first normal opened contact and second normal opened contact; First normally closed contact connects the 24V positive source; First normal opened contact connects the 12V positive source; Second normally closed contact and second normal opened contact all link with second main contact of intermediate relay;
Electric capacity is in parallel with said magnet spool positive and negative electrode;
Retracing spring, an end is fixed on the hoisting crane, and the other end connects reset lever, and reset lever and ratchet front are hinged.
Press such scheme, described control lever comprises the plastics bulb, and the plastics bulb comprises top seal aluminium sheet and hollow abdominal cavity; Be drilled with aperture on the top seal aluminium sheet, plastics bulb side is provided with pig-tail wire passage and hollow abdominal cavity UNICOM; Described button switch is fixed on the top seal aluminium sheet, and the latter half is contained in the hollow abdominal cavity; Described button switch pig-tail wire therefrom passes through the pig-tail wire passage in the empty stomach chamber.
Press such scheme, described travel switch is hinged on the crane structure part near the ratchet back side.
Press such scheme, described 12V power supply is single storage battery of 12V, and the 24V power supply is in series by single storage battery of two 12V.
Working process of the present invention is: adopt the electric controling mode of ratchet, native system is installed on hoisting crane, spur ratchet through the electromagnet in the control native system, reach the purpose of crane safety protection.
Beneficial effect of the present invention is: the purpose that 1, reaches the crane safety protection preferably; 2, on used equipment, improve, with low cost; 3, easy and simple to handle, be active in one's movements after the transformation.
Description of drawings
Fig. 1 is the interconnecting wiring diagram in kind of one embodiment of the invention
Fig. 2 is the electrical schematic diagram of one embodiment of the invention
The specific embodiment
Fig. 1 is the interconnecting wiring diagram in kind of one embodiment of the invention, and present embodiment is a crawler crane.The plastics bulb 2 at control lever 1 top is screwed off, and plastics bulb 2 comprises hollow abdominal cavity 16, can hold a small-sized button switch 4, opens the sealing aluminium sheet 3 at bulb top, on sealing aluminium sheet 3, bores an aperture, and button switch 4 is fixed on the aluminium sheet.Then button switch 4 the latter halfs are contained in the hollow abdominal cavity 16, bore an aperture in plastics bulb 2 sides and be communicated with, as pig-tail wire passage 15 with the bulb abdominal cavity.A contact of button switch 4 connects with the button switch pig-tail wire, and another contact is done bonding and handled.To seal aluminium sheet 3 usefulness glue retightens on plastics bulb 2.
Crane structure below ratchet 9 partly welds an attachment point, and electromagnet 6 aft mount are linked to each other with attachment point, and head is provided with spring 13, and spring 13 links with pull bar 7, and pull bar 7 is hinged with the back side of ratchet 9.Be wound with coil on the electromagnet 6, the negative pole of coil is done bonding and is handled.
Intermediate relay comprises first main contact, second main contact, the first control end contact and the second control end contact; Wherein first main contact links to each other with the positive pole of said magnet coil; The first control end contact links to each other with described button switch pig-tail wire; The second control end contact connects the 24V positive source.The effect that adds intermediate relay 5 is because button switch 4 can be too little through electric current, can not directly drive electromagnet, and current of electromagnet can be born in the contact of intermediate relay.
At 1 electric capacity 12 of both positive and negative polarity parallel connection of electromagnet 6 coils, in the process that travel switch switches, when promptly electromagnet 6 coil voltages convert 12V into by 24V,, keep the attracting state of coil through electric capacity 12 discharges.
Retracing spring 8 one ends are fixed on the hoisting crane, and the other end connects reset lever 14, and reset lever 14 is positive hinged with ratchet 9.
Fig. 2 is the electrical schematic diagram of one embodiment of the invention, and during operation, the driver pins the button switch 4 of control lever bulb, and button switch 4 is connected intermediate relay 5, makes intermediate relay 5 main contacts connect.Electromagnet 6 coils thus electric, coil pulling spring 13, pull bar 7, pull bar 7 drive ratchet 9 again and throw off ratchets 11.When ratchet 9 was opened, bump travel switch 10 behind broke off travel switch 10 normally closed contacts, and normal opened contact is communicated with, so electromagnet 6 operating voltages become 12V by 24V, electromagnet 6 entering hold modes.The safety gear of winch just is opened like this, carries out corresponding operating this moment again.When needs ratchet 9 returns, the driver breaks off intermediate relay 5 ancillary coil dead electricity with button switch 4; Main contact breaks off, electromagnet 6 coil blackouts, and ratchet 9 drives through retracing spring 8; Again engage with ratchet 11, thus elevator is locked, realized the purpose of safety precaution.
The present invention can be used for luffing elevator, master winch and the auxiliary elevator etc. of hoisting crane.
Claims (2)
1. crane safety mechanism control system, it is characterized in that: it consists of the following components:
Button switch is located on the control lever, and a contact of button switch connects with the button switch pig-tail wire, and another contact is done bonding and handled;
Electromagnet, the crane structure of ratchet below partly is provided with attachment point, and the electromagnet aft mount links to each other with attachment point; The electromagnet head is provided with spring, and spring connects pull bar, and the pull bar and the ratchet back side are hinged; Be wound with coil on the electromagnet, coil comprises positive pole and negative pole, and wherein negative pole is done the bonding processing;
Intermediate relay comprises first main contact, second main contact, the first control end contact and the second control end contact; Wherein first main contact links to each other with the positive pole of said magnet coil; The first control end contact links to each other with described button switch pig-tail wire; The second control end contact connects the 24V positive source;
Travel switch comprises first normally closed contact, second normally closed contact, first normal opened contact and second normal opened contact; First normally closed contact connects the 24V positive source; First normal opened contact connects the 12V positive source; Second normally closed contact and second normal opened contact all link with second main contact of intermediate relay;
Electric capacity is in parallel with said magnet spool positive and negative electrode;
Retracing spring, an end is fixed on the hoisting crane, and the other end connects reset lever, and reset lever and ratchet front are hinged;
Described travel switch is hinged on the crane structure part near the ratchet back side;
Described 12V power supply is single storage battery of 12V, and the 24V power supply is in series by single storage battery of two 12V.
2. crane safety mechanism control system according to claim 1 is characterized in that: described control lever comprises the plastics bulb, and the plastics bulb comprises top seal aluminium sheet and hollow abdominal cavity; Be drilled with aperture on the top seal aluminium sheet, plastics bulb side is provided with pig-tail wire passage and hollow abdominal cavity UNICOM; Described button switch is fixed on the top seal aluminium sheet, and the latter half is contained in the hollow abdominal cavity; Described button switch pig-tail wire therefrom passes through the pig-tail wire passage in the empty stomach chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101779912A CN101830401B (en) | 2010-05-14 | 2010-05-14 | Crane safety mechanism control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101779912A CN101830401B (en) | 2010-05-14 | 2010-05-14 | Crane safety mechanism control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101830401A CN101830401A (en) | 2010-09-15 |
| CN101830401B true CN101830401B (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101779912A Expired - Fee Related CN101830401B (en) | 2010-05-14 | 2010-05-14 | Crane safety mechanism control system |
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| CN (1) | CN101830401B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107697829B (en) * | 2017-10-11 | 2020-05-01 | 中国一冶集团有限公司 | Device for preventing ratchet wheel and pawl of winch from being locked |
| CN108423583A (en) * | 2018-02-26 | 2018-08-21 | 海宁鼎合工程技术开发有限公司 | A kind of construction lifting tightening device and its application method |
| CN108347011B (en) * | 2018-03-07 | 2024-02-02 | 国家电网公司 | Lead clamping device, lead hanger device and quick mounting tool |
| CN112443540A (en) * | 2019-08-27 | 2021-03-05 | 上海宝信软件股份有限公司 | Anti-locking ratchet self-locking mechanism |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU462743A1 (en) * | 1972-04-21 | 1975-03-05 | Карельский Научно-Исследовательский Институт Легкой Промышленности | Device for marking piece goods |
| US4544137A (en) * | 1984-04-12 | 1985-10-01 | Shell Oil Company | Offshore crane wave motion compensation apparatus |
| CN2033942U (en) * | 1988-07-15 | 1989-03-08 | 锦州新生开关厂 | Vacuum circuit breaker |
| CN2342188Y (en) * | 1998-10-08 | 1999-10-06 | 深圳日通机电设备工程有限公司 | Electric reset controller with quick switch-on function |
| CN2651550Y (en) * | 2003-10-31 | 2004-10-27 | 贺业超 | Actuator of electric motor resetting valve |
| CN2827980Y (en) * | 2005-10-20 | 2006-10-18 | 湖南海诺电梯有限公司 | Elevator two-way speed limiter without machine room |
| CN200984832Y (en) * | 2006-11-20 | 2007-12-05 | 张玉龙 | Ratchet type braking device |
| CN201030834Y (en) * | 2007-02-12 | 2008-03-05 | 高长福 | Control device forcing use of automobile safety band |
| CN201686415U (en) * | 2010-05-14 | 2010-12-29 | 武汉一冶交通工程有限责任公司 | Control device of ratchet-pawl mechanism |
-
2010
- 2010-05-14 CN CN2010101779912A patent/CN101830401B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU462743A1 (en) * | 1972-04-21 | 1975-03-05 | Карельский Научно-Исследовательский Институт Легкой Промышленности | Device for marking piece goods |
| US4544137A (en) * | 1984-04-12 | 1985-10-01 | Shell Oil Company | Offshore crane wave motion compensation apparatus |
| CN2033942U (en) * | 1988-07-15 | 1989-03-08 | 锦州新生开关厂 | Vacuum circuit breaker |
| CN2342188Y (en) * | 1998-10-08 | 1999-10-06 | 深圳日通机电设备工程有限公司 | Electric reset controller with quick switch-on function |
| CN2651550Y (en) * | 2003-10-31 | 2004-10-27 | 贺业超 | Actuator of electric motor resetting valve |
| CN2827980Y (en) * | 2005-10-20 | 2006-10-18 | 湖南海诺电梯有限公司 | Elevator two-way speed limiter without machine room |
| CN200984832Y (en) * | 2006-11-20 | 2007-12-05 | 张玉龙 | Ratchet type braking device |
| CN201030834Y (en) * | 2007-02-12 | 2008-03-05 | 高长福 | Control device forcing use of automobile safety band |
| CN201686415U (en) * | 2010-05-14 | 2010-12-29 | 武汉一冶交通工程有限责任公司 | Control device of ratchet-pawl mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101830401A (en) | 2010-09-15 |
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Owner name: CHINA FIRST METALLURGICAL CONSTRUCTION GROUP CORPO Free format text: FORMER OWNER: WUHAN YIYE TRAFFIC ENGINEERING CO., LTD. Effective date: 20101229 |
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Effective date of registration: 20101229 Address after: 430081 Wuhan Industrial Zone, Qingshan District, Hubei, No. 3 Applicant after: China First Metallurgical Group Co., Ltd. Address before: 430081 Wuhan Industrial Zone, Qingshan District, Hubei, No. 3 Applicant before: Wuhan First Metallurgical Communication Engineering Co., Ltd. |
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Granted publication date: 20120125 Termination date: 20200514 |