CN102408046A - Three-level brake device for lifting mechanism - Google Patents
Three-level brake device for lifting mechanism Download PDFInfo
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- CN102408046A CN102408046A CN201110204762XA CN201110204762A CN102408046A CN 102408046 A CN102408046 A CN 102408046A CN 201110204762X A CN201110204762X A CN 201110204762XA CN 201110204762 A CN201110204762 A CN 201110204762A CN 102408046 A CN102408046 A CN 102408046A
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- drg
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- brake
- cover
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Abstract
The invention discloses a three-level brake device for a lifting mechanism and belongs to the technical field of lifting equipment. The three-level brake device is characterized by consisting of two transmission devices, two brake devices, a manual release device, a clutch device and a control system. Two transmission devices are symmetrical to two brake devices. In the engagement state of the clutch device, two drive devices are connected rigidly; and during normal braking, a first-level brake acts first, when the rotation speed of a motor is reduced to be 0, a second-level brake acts, and a third-level brake acts t1 time after the drive devices stop running. During emergency braking, the first-level brake and the second-level brake act simultaneously, and the third-level brake acts after t2 time. In the manual release device, an operation handle controls two second-level brakes simultaneously, and load can be placed at a safe position under the state of the interruption of a power supply. Under the separation state of the clutch device, two drive devices are disconnected. The three-level brake device has the advantages of high safety and reliability and small impact.
Description
Technical field
The invention belongs to the weight-lifting equipment technical field, relate to a kind of three-stage brake device of lifting mechanism.
Background technology
Brake equipment is the most important safety device of lifting mechanism; The lifting mechanism of handling important item and hazardous materials often has very high security requirement to brake equipment; The safety of raising brake equipment the most simply, the most directly method increases separate unit drg safety factor exactly; But this need strengthen the lock torque of separate unit drg, thereby the impact load of glancing impact is increased, to lifting mechanism messenger chain deleterious impact.
Summary of the invention
The purpose of this invention is to provide a kind of safe and reliable three-stage brake device, satisfy high safety, the low requirement of impacting.
Technical scheme of the present invention is: this device is made up of two cover drivings device, two cover brake equipments, a cover hand release, a cover arrangement of clutch and a cover control system.Two cover driving device symmetric arrangement are made up of electrical motor, coupler, retarder, reel respectively; Arrangement of clutch is installed on two high speed shafts between the retarder; Two cover brake equipment symmetric arrangement; Form by first order drg, second stage drg, third stage drg, hand release respectively; The brake wheel of first order drg (dish) fuses with coupler respectively; Be installed between electrical motor and the retarder, the brake wheel of second stage drg (dish) fuses with the fixed part at arrangement of clutch two ends respectively, and the brake disc of third stage drg fuses with reel respectively; Have only the hand release of an operating handle to link to each other with two second stage drgs; The control system independent installation.
Under the arrangement of clutch bonding state, two cover actuating devices are rigidly connected, and any one in the two motors can both work independently, and in six drgs any one can hold on whole load separately.During normal brake application, first order drg is action earlier, when motor speed will be for 0 the time, and the action of second stage drg, the 3rd drg moved after the actuating device t1 out of service time.During emergency braking, first order drg and second stage drg move simultaneously, and the third stage drg time-delay t2 time moves.Hand release is controlled two second stage drgs simultaneously with an operating handle, can under off-position, load be transferred to perch.
Under the arrangement of clutch released state, two cover actuating devices break away from and connect.Two cover actuating devices can move respectively, and two cover brake equipments also can move respectively.
Effect of the present invention and benefit are: brake equipment safety, reliable, impact for a short time, can be used for the lifting mechanism of the important or hazardous materials of handling, like nuclear power plant equipment gate lifting appliance and ladle carne.
Description of drawings
Fig. 1 is the general assembly scheme drawing of this device, and arrangement of clutch is a bonding state among the figure.
Fig. 2 is that arrangement of clutch is the scheme drawing of released state.
Among the figure: 1 third stage drg; 2 reels; 3 electrical motors; 4 coupler; 5 first order drgs; 6 retarders; 7 second stage drgs; 8 hand releases; 9 arrangement of clutch.
The specific embodiment
Below in conjunction with technical scheme and accompanying drawing, be described in detail the specific embodiment of the present invention.
As shown in Figure 1, under arrangement of clutch 9 bonding states, two cover actuating devices are rigidly connected.When actuating device started, the three-stage brake device of brake equipment was opened simultaneously, and electrical motor 3 drives the dipping and heaving that reel 2 is accomplished load through reductor 6.During normal brake application, first order drg 5 action earlier, when the rotating speed of electrical motor 3 reduces to 0, the action of second stage drg, the 3rd drg 1 moved after the actuating device t1 out of service time.During emergency braking, first order drg 5 moves with second stage drg 7 simultaneously, and the 1 time-delay t2 time of third stage drg moves.When working independently for one in the two motors, the course of action of brake equipment is constant.Operating handle of hand release 8 usefulness is controlled two second stage drgs 7 simultaneously; Can under off-position, load be transferred to perch; Operating process is: earlier first order drg 5 and third stage drg 1 are opened; Control two second stage drgs 7 simultaneously with the operating handle of hand release 8 again, load is slowly descended.
As shown in Figure 2, under the arrangement of clutch released state, two cover actuating devices break away from and connect.Two cover actuating devices can move respectively, and two cover brake equipments also can move respectively.
Claims (3)
1. the three-stage brake device of a lifting mechanism is made up of two cover drivings device, two cover brake equipments, a cover hand release, a cover arrangement of clutch and a cover control system; Two cover driving device symmetric arrangement are made up of electrical motor, coupler, retarder, reel respectively; It is characterized in that arrangement of clutch is installed on two high speed shafts between the retarder; Two cover brake equipment symmetric arrangement; Form by first order drg, second stage drg, third stage drg, hand release respectively; The brake wheel of first order drg (dish) fuses with coupler respectively; Be installed between electrical motor and the retarder, the brake wheel of second stage drg (dish) fuses with the fixed part at arrangement of clutch two ends respectively, and the brake disc of third stage drg fuses with reel respectively; Have only the hand release of an operating handle to link to each other with two second stage drgs.
2. the three-stage brake device of a kind of lifting mechanism according to claim 1; It is characterized in that under the arrangement of clutch bonding state; Two cover actuating devices are rigidly connected; Any one in the two motors can both work independently, and any one in six drgs can both hold on whole load separately; During normal brake application, first order drg is action earlier, when motor speed reduces to 0, and the action of second stage drg, the 3rd drg moved after the actuating device t1 out of service time; During emergency braking, first order drg and second stage drg move simultaneously, and the third stage drg time-delay t2 time moves; Hand release is controlled two second stage drgs simultaneously with an operating handle, under off-position, load is transferred to perch.
3. the three-stage brake device of a kind of lifting mechanism according to claim 1 is characterized in that under the arrangement of clutch released state, and two cover actuating devices break away from and connect; Two cover actuating devices move respectively, the also operation respectively of two cover brake equipments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110204762XA CN102408046A (en) | 2011-07-12 | 2011-07-12 | Three-level brake device for lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110204762XA CN102408046A (en) | 2011-07-12 | 2011-07-12 | Three-level brake device for lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102408046A true CN102408046A (en) | 2012-04-11 |
Family
ID=45910455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110204762XA Pending CN102408046A (en) | 2011-07-12 | 2011-07-12 | Three-level brake device for lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102408046A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1345124A (en) * | 1972-03-17 | 1974-01-30 | Schat Davits Ltd | Winch mechanism for lowring a lifeboat launach or the like suspended from two falls into the water and hoisting it out of the water |
| CN1318507A (en) * | 2001-05-25 | 2001-10-24 | 太原重型机械(集团)有限公司 | Lift mechanism for crane and its steel cable winding method |
| CN1785788A (en) * | 2005-04-06 | 2006-06-14 | 上海振华港口机械（集团）股份有限公司 | Two winding drum differential lifting mechanism of bi 40 feet shoreside container crane |
| CN101804947A (en) * | 2010-04-19 | 2010-08-18 | 黄河勘测规划设计有限公司 | Single and double hanging point conversion type lifting device |
| CN202279587U (en) * | 2011-07-12 | 2012-06-20 | 大连博瑞重工有限公司 | Three-grade brake device of lifting mechanism |
-
2011
- 2011-07-12 CN CN201110204762XA patent/CN102408046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1345124A (en) * | 1972-03-17 | 1974-01-30 | Schat Davits Ltd | Winch mechanism for lowring a lifeboat launach or the like suspended from two falls into the water and hoisting it out of the water |
| CN1318507A (en) * | 2001-05-25 | 2001-10-24 | 太原重型机械(集团)有限公司 | Lift mechanism for crane and its steel cable winding method |
| CN1785788A (en) * | 2005-04-06 | 2006-06-14 | 上海振华港口机械（集团）股份有限公司 | Two winding drum differential lifting mechanism of bi 40 feet shoreside container crane |
| CN101804947A (en) * | 2010-04-19 | 2010-08-18 | 黄河勘测规划设计有限公司 | Single and double hanging point conversion type lifting device |
| CN202279587U (en) * | 2011-07-12 | 2012-06-20 | 大连博瑞重工有限公司 | Three-grade brake device of lifting mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120411 |