CN114873503A - Crane safety brake control system and method - Google Patents
Crane safety brake control system and method Download PDFInfo
- Publication number
- CN114873503A CN114873503A CN202210571317.5A CN202210571317A CN114873503A CN 114873503 A CN114873503 A CN 114873503A CN 202210571317 A CN202210571317 A CN 202210571317A CN 114873503 A CN114873503 A CN 114873503A
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- Prior art keywords
- safety brake
- hydraulic station
- hose
- ball valve
- crane
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000005266 casting Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention belongs to the field of hoisting machinery, and relates to a crane safety brake control system and a method, which comprises a first hydraulic station, a second hydraulic station, a first safety brake and a second safety brake, wherein the first safety brake and the second safety brake are respectively communicated with the first hydraulic station and the second hydraulic station; the first hydraulic station and the second hydraulic station are respectively communicated with the first safety brake and the second safety brake through the first hose and the second hose. According to the invention, through the optimized design of the hydraulic pipeline of the safety brake, the ferrule type joint is cancelled, the hose is used, the leakage points of the pipeline joint are reduced, and the stable operation of the safety brake is ensured. Meanwhile, the control mode of the safety brake is changed into redundancy control, and the operation reliability of the equipment is greatly improved.
Description
Technical Field
The invention belongs to the field of hoisting machinery, and relates to a system and a method for controlling a safety brake of a crane.
Background
The crane safety brake can reliably and quickly hold the winding drum under the accident condition of the metallurgical casting crane, prevent the falling of a steel ladle and avoid accidents. If a large amount of oil leaks in a hydraulic pipeline of the safety brake, the safety brake is suddenly braked, so that a reducer and a coupler of a lifting system cause mechanical impact load, and a gear of the reducer is damaged in severe cases.
The safety brakes on the two winding drums of the crane are independently controlled by one set of hydraulic station, the hydraulic pipeline joint is a clamping sleeve type joint, the operation vibration of the crane is large, and oil leakage often occurs in the pipeline joint, so that the fault of the safety brakes is caused. While a hydraulic station failure will also result in a brake failure. The hydraulic station has long fault handling time and causes great impact on production.
Disclosure of Invention
In view of this, the invention aims to provide a crane safety brake control system and method, which can improve the operation reliability of a crane safety brake and ensure the safe and stable operation of a metallurgical casting crane.
In order to achieve the purpose, the invention provides the following technical scheme: a safety brake control system of a crane comprises a first hydraulic station, a second hydraulic station, a first safety brake and a second safety brake, wherein the first safety brake and the second safety brake are respectively communicated with the first hydraulic station and the second hydraulic station; the first hydraulic station and the second hydraulic station are respectively communicated with the first safety brake and the second safety brake through the first hose and the second hose.
Optionally, the first hose is provided with a first ball valve at an outlet of the first hydraulic station, and the second hose is provided with a second ball valve at an outlet of the second hydraulic station.
Optionally, the first hose is communicated with the second hose through a pipeline, and a third ball valve is arranged on the pipeline.
The control method of the safety brake of the crane is applied to the control system of the safety brake of the crane, and comprises the following steps:
s1, when the crane normally runs, the first ball valve and the second ball valve are in a normally open state, the third ball valve is in a normally closed state, and the first safety brake and the second safety brake are respectively controlled by the first hydraulic station and the second hydraulic station;
s2, when one of the hydraulic stations fails to open the corresponding safety brake, closing the ball valve at the outlet of the failed hydraulic station, and opening the third ball valve between the two hydraulic stations, wherein the first safety brake and the second safety brake are controlled by the same hydraulic station.
The invention has the beneficial effects that: according to the crane safety brake control system and method, the hydraulic pipeline of the safety brake is optimally designed, a ferrule type joint is omitted, a hose is used, leakage points of the pipeline joint are reduced, and the stable operation of the safety brake is ensured. Meanwhile, the control mode of the safety brake is changed into redundancy control, and the operation reliability of the equipment is greatly improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is an overall schematic diagram of a crane safety brake control system and method according to the present invention.
Reference numerals: the hydraulic system comprises a first hydraulic station 1, a second hydraulic station 2, a pipeline 3, a second hose 4, a second safety brake 5, a first safety brake 6, a first hose 7, a first ball valve 8, a second ball valve 9 and a third ball valve 10.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a safety brake control system for a crane includes a first hydraulic station 1, a second hydraulic station 2, a first safety brake 6 and a second safety brake 5 respectively connected to the first hydraulic station 1 and the second hydraulic station 2; the first hydraulic station 1 and the second hydraulic station 2 are respectively communicated with a first safety brake 6 and a second safety brake 5 through a first hose 7 and a second hose 4, the first hose 7 is provided with a first ball valve 8 at an outlet of the first hydraulic station 1, the second hose 4 is provided with a second ball valve 9 at an outlet of the second hydraulic station 2, the first hose 7 is communicated with the second hose 4 through a pipeline 3, and the pipeline 3 is provided with a third ball valve 10.
The control method of the safety brake of the crane is applied to the control system of the safety brake of the crane, and comprises the following steps:
s1, when the crane normally runs, the first ball valve 8 and the second ball valve 9 are in normally open states, the third ball valve 10 is in a normally closed state, and the first safety brake 6 and the second safety brake 5 are respectively controlled by the first hydraulic station 1 and the second hydraulic station 2;
s2, when one hydraulic station fails to open the corresponding safety brake, closing the ball valve at the outlet of the failed hydraulic station, and opening the third ball valve 10 between the two hydraulic stations, wherein the first safety brake 6 and the second safety brake 5 are controlled by the same hydraulic station.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (4)
1. A hoist safety brake control system characterized in that: the hydraulic system comprises a first hydraulic station, a second hydraulic station, a first safety brake and a second safety brake, wherein the first safety brake and the second safety brake are respectively communicated with the first hydraulic station and the second hydraulic station;
the first hydraulic station and the second hydraulic station are respectively communicated with the first safety brake and the second safety brake through the first hose and the second hose.
2. A crane safety brake control system as claimed in claim 1, wherein: the first hose is provided with a first ball valve at the first hydraulic station outlet, and the second hose is provided with a second ball valve at the second hydraulic station outlet.
3. A crane safety brake control system as claimed in claim 1, wherein: the first hose is communicated with the second hose through a pipeline, and a third ball valve is arranged on the pipeline.
4. A crane safety brake control method applying the crane safety brake control system as claimed in any one of claims 1 to 3, characterized by comprising the following steps:
s1, when the crane normally runs, the first ball valve and the second ball valve are in a normally open state, the third ball valve is in a normally closed state, and the first safety brake and the second safety brake are respectively controlled by the first hydraulic station and the second hydraulic station;
s2, when one of the hydraulic stations fails to open the corresponding safety brake, closing the ball valve at the outlet of the failed hydraulic station, and opening the third ball valve between the two hydraulic stations, wherein the first safety brake and the second safety brake are controlled by the same hydraulic station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571317.5A CN114873503A (en) | 2022-05-24 | 2022-05-24 | Crane safety brake control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571317.5A CN114873503A (en) | 2022-05-24 | 2022-05-24 | Crane safety brake control system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114873503A true CN114873503A (en) | 2022-08-09 |
Family
ID=82677550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210571317.5A Pending CN114873503A (en) | 2022-05-24 | 2022-05-24 | Crane safety brake control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114873503A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2406784A (en) * | 1983-02-03 | 1984-08-09 | Continental Emsco Company | Emergency control hydraulic system for a crane |
| DE202004010530U1 (en) * | 2004-07-06 | 2004-12-09 | Deere & Company, Moline | Hydraulic circuit with priority valve for vehicle has at least one further priority valve with which priority of only one load is regulated and that also has pressure adaptation function |
| CN102602350A (en) * | 2012-03-22 | 2012-07-25 | 昆山三一机械有限公司 | Hydraulic walking line of crawler crane and crawler crane including the line |
| CN204249967U (en) * | 2014-10-15 | 2015-04-08 | 中国长江航运集团南京金陵船厂 | A kind of Flat car hydraulic motor oil inlet support |
| CN213331744U (en) * | 2020-08-24 | 2021-06-01 | 广东韶钢松山股份有限公司 | Online mutual standby hydraulic system for blast furnace front mud gun |
| CN216077813U (en) * | 2021-09-22 | 2022-03-18 | 南水北调东线山东干线有限责任公司 | Hydraulic system of maintenance gate trash cleaning machine |
| CN216382098U (en) * | 2021-11-30 | 2022-04-26 | 临沂鑫海新型材料有限公司 | Furnace hydraulic system with standby function |
-
2022
- 2022-05-24 CN CN202210571317.5A patent/CN114873503A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2406784A (en) * | 1983-02-03 | 1984-08-09 | Continental Emsco Company | Emergency control hydraulic system for a crane |
| DE202004010530U1 (en) * | 2004-07-06 | 2004-12-09 | Deere & Company, Moline | Hydraulic circuit with priority valve for vehicle has at least one further priority valve with which priority of only one load is regulated and that also has pressure adaptation function |
| CN102602350A (en) * | 2012-03-22 | 2012-07-25 | 昆山三一机械有限公司 | Hydraulic walking line of crawler crane and crawler crane including the line |
| CN204249967U (en) * | 2014-10-15 | 2015-04-08 | 中国长江航运集团南京金陵船厂 | A kind of Flat car hydraulic motor oil inlet support |
| CN213331744U (en) * | 2020-08-24 | 2021-06-01 | 广东韶钢松山股份有限公司 | Online mutual standby hydraulic system for blast furnace front mud gun |
| CN216077813U (en) * | 2021-09-22 | 2022-03-18 | 南水北调东线山东干线有限责任公司 | Hydraulic system of maintenance gate trash cleaning machine |
| CN216382098U (en) * | 2021-11-30 | 2022-04-26 | 临沂鑫海新型材料有限公司 | Furnace hydraulic system with standby function |
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