CN201411338Y - Block-double trolley type electric block provided with safety brake - Google Patents

Block-double trolley type electric block provided with safety brake Download PDF

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Publication number
CN201411338Y
CN201411338Y CN2009200968712U CN200920096871U CN201411338Y CN 201411338 Y CN201411338 Y CN 201411338Y CN 2009200968712 U CN2009200968712 U CN 2009200968712U CN 200920096871 U CN200920096871 U CN 200920096871U CN 201411338 Y CN201411338 Y CN 201411338Y
Authority
CN
China
Prior art keywords
drg
brake
motor
hoist
transmission shaft
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
Application number
CN2009200968712U
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Chinese (zh)
Inventor
延绪强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Hoisting Equipment Co Ltd
Original Assignee
Tianjin Hoisting Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Hoisting Equipment Co Ltd filed Critical Tianjin Hoisting Equipment Co Ltd
Priority to CN2009200968712U priority Critical patent/CN201411338Y/en
Application granted granted Critical
Publication of CN201411338Y publication Critical patent/CN201411338Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a block-double trolley type electric block provided with a safety brake, which comprises a motor provided with a brake, a reducer and a support mounted on the output shaftof the motor and a winding drum device mounted on the support, and is characterized in that the motor brake is the first brake, a second brake is mounted at the front part of the first brake, the brake disc of the second brake is mounted on the motor output shaft through a button, the second brake is mounted in the motor housing, the winding drum comprises a winding drum and a transmission shaft,one end of the transmission shaft in the winding drum device is connected with the motor side, the other end of the transmission shaft is connected with a braking sleeve through a connecting shaft, ahydraulic brake disc is mounted on the braking sleeve through a fastener, a third brake is mounted at the lower end of the hydraulic brake disc, and the friction plate of the third brake is mounted on the two sides of the hydraulic brake disc. The utility model not only can avoid the accident brought by braking failure, and has the advantages of small size, simple structure and convenient mounting, therefore the safety is greatly improved and the space is saved as well.

Description

The hoist double-trolley electric hoist that has sure brake
Technical field
The utility model belongs to hoisting crane manufacturing technology field, particularly relates to a kind of hoist double-trolley electric hoist that has sure brake.
Background technology
Hoisting crane is widely used in fields such as metallurgy, machinery, chemical industry, oil, the energy, and electric block is a component part important in the hoisting crane, because the particularity of many working spaces, the user worries that goods can cause the inefficacy of drg for a certain reason in the process of lifting, loading and unloading, thereby brings unnecessary loss.In addition, also need to save the spatial dimension that electric block is installed.Therefore, not only need the drg that add be installed on electric block, avoid the generation of accident.Simultaneously, also to satisfy the spatial dimension that electric block is installed.Existing electric block mainly adopts single braking to brake, and it is poor that this brake mode has braking effect, the low deficiency that waits of safety performance.
Summary of the invention
The utility model is for solving the hoist double-trolley electric hoist that has sure brake that the technical matters that exists in the known technology provides a kind of simple in structure, easy installation and removal, raising safety performance, saves installing space.
The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is:
A kind of hoist double-trolley electric hoist that has sure brake, comprise the motor that has drg, the retarder of installing on the output shaft of motor, the roll device of installing on support and the support, it is characterized in that: the drg that described motor carries is first drg, in the first drg front portion second drg is installed, the brake disc of second drg is installed on the motor output shaft by key, second drg is installed in the motor housing by fastener, described roll device comprises reel and transmission shaft, transmission shaft one end in the roll device links to each other with motor side, the other end of transmission shaft connects braking sleeve by adapter shaft, by fastener the hydraulic braking dish is installed on the braking sleeve, the lower end of hydraulic braking dish is equipped with the 3rd drg, and the friction lining of the 3rd drg is installed in the both sides of hydraulic braking dish.
The utility model can also adopt following technical measures:
Described first drg adopts the taper ac brake.
Described second drg adopts the DC-disc type drg.
Described the 3rd drg adopts hydraulic brake.
The gap of the friction lining of described the 3rd drg and hydraulic braking dish both sides is 3~5mm.
Several shear-stable pins are installed on the described braking sleeve.
Advantage and the good effect that the utlity model has are: owing to added second drg at the utility model on motor, avoided the loss that brings because of first misfunctioning of brake, simultaneously, improved the safety of the utility model itself.Increased the DC-disc type drg in the roll device outside, even motor lost efficacy like this, first, second drg is not worked simultaneously, the 3rd drg that is installed in the roll device outside can be braked roll device at once, and the shared space of the 3rd drg is less, be more convenient for adjusting, the dismounting maintenance.The utility model not only satisfied hoisting crane safety arrestment in normal operation, guaranteed the high efficiency of goods handling, loading and unloading simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an A-A cutaway view among Fig. 1;
Fig. 3 is a B-B cutaway view among Fig. 1.
Among the figure: 1, motor; 1-2, first drg; 1-21, brake disc; 1-22, Brake Block; 1-3, motor output shaft; 2, retarder; 3, support; 4, roll device; 5, second drg; 5-1, brake disc; 5-2, dc coil; 5-3, pressure spring; 5-4, Brake Block; 6, adapter shaft; 7, braking sleeve; 8, bolt; 9, hydraulic braking dish; 10, the 3rd drg; 10-1, friction lining; 11, pin.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1 to Fig. 3, a kind of hoist double-trolley electric hoist that has sure brake, comprise the roll device of installing on retarder 2, support 3 and the support of installing on the output shaft of the motor 1 that has drg, motor 4, the drg that carries of wherein said motor is the first drg 1-2, and this drg adopts the taper ac brake.Its principle of work: when power connection, the moment motor shaft that rotates drives first drg and does longitudinal travel, first drg is opened, motor shaft reposition under the pressure spring effect behind the supply disconnecton, brake disc 1-21 and Brake Block 1-22 produce friction, thereby play the effect of braking, lock torque changes with load, and the big more lock torque of load is big more.In the first drg front portion second drg 5 is installed, this drg adopts the DC-disc type drg.The brake disc 5-1 of second drg is installed on the motor output shaft 1-3 by key, second drg is installed in the motor housing by fastener, its principle of work: work as power connection, dc coil 5-2 inhales brake disc 5-1 together, pressure spring 5-3 is compressed, and this moment, brake disc 5-2 can free without hindrance rotation.When otherwise power supply was cut off, pressure spring 5-3 pushed brake disc 5-1 to Brake Block 5-4, made it to compress mutually, and consequent friction moment is prevented load, and this moment, second drg was in braking mode.Above-mentioned first, second drg is to realize braking function by current control motor high speed shaft.Described roll device 4 comprises reel and transmission shaft, transmission shaft one end in the roll device links to each other with motor side, the other end of transmission shaft connects braking sleeve 7 by adapter shaft 6, by fastener bolt 8 hydraulic braking dish 9 is installed on the braking sleeve 7, the lower end of hydraulic braking dish 9 is equipped with the 3rd drg 10, the friction lining 10-1 of the 3rd drg is installed in the both sides of hydraulic braking dish 9, and the gap of friction lining and hydraulic braking dish both sides is 3~5mm.Present embodiment adopts 3mm.In order to prevent that lock torque from crossing senior general's bolt 8 and cutting off, so when braking sleeve 7 is connected with hydraulic braking dish 9, increased several shear-stable pins 11.The brake structure that first, second, third drg in the said structure is adopted all belongs to general-duty product structure on the market.
Owing to added second drg on motor at the utility model, avoided the loss that brings because of first misfunctioning of brake, simultaneously, improved the safety of the utility model itself.Increased by the 3rd drg in the roll device outside, even motor lost efficacy like this, first, second drg is not worked simultaneously, the 3rd drg that is installed in the roll device outside can be braked roll device at once, and the shared space of the 3rd drg is less, be more convenient for adjusting, the dismounting maintenance.The utility model not only satisfied hoisting crane safety arrestment in normal operation, guaranteed the high efficiency of goods handling, loading and unloading simultaneously.

Claims (6)

1. hoist double-trolley electric hoist that has sure brake, comprise the motor that has drg, the retarder of installing on the output shaft of motor, the roll device of installing on support and the support, it is characterized in that: the drg that described motor carries is first drg, in the first drg front portion second drg is installed, the brake disc of second drg is installed on the motor output shaft by key, second drg is installed in the motor housing by fastener, described roll device comprises reel and transmission shaft, transmission shaft one end in the roll device links to each other with motor side, the other end of transmission shaft connects braking sleeve by adapter shaft, by fastener the hydraulic braking dish is installed on the braking sleeve, the lower end of hydraulic braking dish is equipped with the 3rd drg, and the friction lining of the 3rd drg is installed in the both sides of hydraulic braking dish.
2. the hoist double-trolley electric hoist that has sure brake according to claim 1 is characterized in that: described first drg adopts the taper ac brake.
3. the hoist double-trolley electric hoist that has sure brake according to claim 1 is characterized in that: described second drg adopts the DC-disc type drg.
4. the hoist double-trolley electric hoist that has sure brake according to claim 1 is characterized in that: described the 3rd drg adopts hydraulic brake.
5. the hoist double-trolley electric hoist that has sure brake according to claim 1 is characterized in that: the gap of the friction lining of described the 3rd drg and hydraulic braking dish both sides is 3~5mm.
6. the hoist double-trolley electric hoist that has sure brake according to claim 1 is characterized in that: several shear-stable pins are installed on the described braking sleeve.
CN2009200968712U 2009-05-25 2009-05-25 Block-double trolley type electric block provided with safety brake Expired - Fee Related CN201411338Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200968712U CN201411338Y (en) 2009-05-25 2009-05-25 Block-double trolley type electric block provided with safety brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200968712U CN201411338Y (en) 2009-05-25 2009-05-25 Block-double trolley type electric block provided with safety brake

Publications (1)

Publication Number Publication Date
CN201411338Y true CN201411338Y (en) 2010-02-24

Family

ID=41713225

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200968712U Expired - Fee Related CN201411338Y (en) 2009-05-25 2009-05-25 Block-double trolley type electric block provided with safety brake

Country Status (1)

Country Link
CN (1) CN201411338Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018082022A1 (en) * 2016-11-04 2018-05-11 太原理工大学 Safe-braking control system, mine hoist and safe-braking control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018082022A1 (en) * 2016-11-04 2018-05-11 太原理工大学 Safe-braking control system, mine hoist and safe-braking control method
AU2016428671B2 (en) * 2016-11-04 2019-10-03 Taiyuan University Of Technology Safe-braking control system, mine hoist and safe-braking control method

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100224

Termination date: 20120525