CN114439872B - Braking device of hoisting mechanism of tower crane - Google Patents
Braking device of hoisting mechanism of tower crane Download PDFInfo
- Publication number
- CN114439872B CN114439872B CN202210365221.3A CN202210365221A CN114439872B CN 114439872 B CN114439872 B CN 114439872B CN 202210365221 A CN202210365221 A CN 202210365221A CN 114439872 B CN114439872 B CN 114439872B
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- detection module
- early warning
- warning detection
- friction material
- tower crane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/026—Apparatus for indicating wear using electrical detection or indication means indicating different degrees of lining wear
- F16D66/027—Sensors therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
- Braking Arrangements (AREA)
- Jib Cranes (AREA)
Abstract
The utility model provides a tower crane hoisting mechanism's arresting gear, including friction piece and brake piece, the brake piece is connected with tower crane hoisting mechanism's rotary part, the friction piece includes friction material portion and supporting part, friction material portion has the chamber of holding, install the detection head that link up to the chamber that holds of friction material portion on the supporting part, the detection head contains degree of depth wearing and tearing early warning detection module and the failure alarm detection module with removable mode assembled coupling, degree of depth wearing and tearing early warning detection module sets up in failure alarm detection module periphery, degree of depth wearing and tearing early warning detection module and failure alarm detection module all include base member and the wire at the inside extension of base member, constitute the detection condition that opens circuit and with the induction wear size. Because the deep wear early warning detection module and the failure warning detection module are assembled and connected in a detachable mode, the problems that a plurality of detection heads need to be installed in the prior art and the problem of adaptation when the friction material part of the friction piece needs to be changed in matching are solved, and the deep wear early warning detection module and the failure warning detection module are easy to manufacture and replace.
Description
Technical Field
The invention relates to the technical field of crane braking control, in particular to a braking device of a hoisting mechanism of a tower crane.
Background
The present tower crane has gradually regard as necessary detection item brake wearing and tearing or inefficacy in the aspect of the braking that rises, for example, the chinese utility model patent that the grant bulletin number is CN206221551U discloses a detection device for tower crane plays to rise the stopper, through installing distance sensor and tablet respectively on the stopper, confirm the sensing distance of distance sensor and tablet, after the brake shoe wearing and tearing, distance sensor shortens with the sensing distance of tablet, when sensing distance shortens to the warning distance of design, can trigger distance sensor signals, and send the warning suggestion to electrical system through the cable transmission.
Because the working environment and all components of the tower crane are stressed complicatedly when in work, the detection means of the distance sensor is easily influenced by the installation conditions, the deformation of installation parts and the like to cause precision deterioration and even failure, probes based on a resistance series-parallel circuit for accurately measuring the abrasion loss are arranged on the market at present, the design precision and the cost of the probes are unnecessary for hoisting machinery which only needs to carry out simple deep abrasion early warning and failure early warning, the abrasion detection head based on simple circuit open circuit detection is applied to the tower crane and can well adapt to the real working condition, but the structural combination and the installation of the deep abrasion early warning and the failure early warning are still complex, two or even a plurality of detection heads sometimes need to be installed and can not adapt to the change of friction materials.
Disclosure of Invention
In order to solve the problems, the invention provides a braking device of a hoisting mechanism of a tower crane, which realizes the combination and adjustment of deep abrasion early warning and failure early warning by improving the structure of an abrasion detection head and adapts to the change of friction materials.
The technical scheme of the invention is as follows:
a braking device of a tower crane hoisting mechanism comprises a friction piece and a braking piece, wherein the braking piece is connected with a rotating part of the tower crane hoisting mechanism, the friction piece comprises a friction material part and a supporting part, the friction material part is provided with a containing cavity, a detection head penetrating through the containing cavity of the friction material part is mounted on the supporting part, the detection head comprises a deep wear early warning detection module and a failure warning detection module which are assembled and connected in a detachable mode, and the deep wear early warning detection module is arranged on the periphery of the failure warning detection module;
the deep wear early warning detection module comprises a base material and a first lead extending in the base material, the failure warning detection module comprises a base material and a second lead extending in the base material, the deep wear early warning detection module and the failure warning detection module are both connected to a detection head base, a first wiring end matched with the first lead is arranged in the detection head base, when the deep wear early warning detection module is assembled and connected to the periphery of the failure warning detection module, the first lead is connected with the first wiring end, when the detection head is installed in a containing cavity of a friction material part in a penetrating manner, the foremost position of the first lead is closer to a friction working surface of the friction material part than the foremost position of the second lead, and the foremost position of the first lead corresponds to the preset deep wear size position of the friction material part, the foremost position of the second lead corresponds to a preset wear failure size position of the friction material part.
In a further embodiment, in the braking device of the tower crane hoisting mechanism, the failure warning detection modules and the detection head base are integrally manufactured or assembled to form a base module, one base module is matched with a plurality of deep wear early warning detection modules, the plurality of deep wear early warning detection modules are manufactured to enable the foremost part of the first lead and the foremost part of the second lead to have different intervals after the deep wear early warning detection modules are assembled and connected to the base module so as to be adapted to different friction material parts, and the different friction material parts have different friction material types, friction performance parameters and/or friction material sizes.
In a further embodiment, in the braking device of the hoisting mechanism of the tower crane, the distance between the foremost end part of the first conducting wire of the plurality of depth wear early warning detection modules and the inner edge of the base material where the foremost end part of the first conducting wire is located is different from the distance between the foremost end part of the first conducting wire and the inner edge of the base material where the foremost end part of the first conducting wire is located.
In a further embodiment, in the braking device of the hoisting mechanism of the tower crane, the distance between the foremost end part of the first wires of the multiple deep wear early warning detection modules and the outer edge of the base material where the foremost end part of the first wires is located is the same as the distance between the foremost end part of the first wires and the outer edge of the base material where the foremost end part of the first wires is located.
In a further embodiment, in the braking device for a hoisting mechanism of a tower crane, the distance between the inner edge of the base material where the foremost end part of the first wires of the multiple deep wear early warning detection modules is located and the inner edge of the deep wear early warning detection module is the same.
In a further embodiment, in the braking device of the hoisting mechanism of the tower crane, the upper part of the detection head base is provided with a positioning groove for embedding the deep wear early warning detection module.
In a further embodiment, in the braking device of the hoisting mechanism of the tower crane, the detection head base is provided with a via hole into which the first wire is inserted.
In a further embodiment, in the braking device for a hoisting mechanism of a tower crane, the detection head base is internally provided with a second terminal matched with a second wire.
In a further embodiment, in the braking device of the hoisting mechanism of the tower crane, the first terminal and the second terminal are connected with the MCU module of the tower crane through a control circuit.
In a further embodiment, the braking device for the hoisting mechanism of the tower crane is provided with a plurality of base modules, and the plurality of base modules are adapted to a plurality of different friction material parts by making the most front end part of the second lead have different distances from the detection head base.
The invention can obtain the following technical effects:
the braking device of the tower crane hoisting mechanism provided by the invention has the advantages that the adopted detection heads comprise the deep wear early warning detection module and the failure warning detection module which are assembled and connected in a detachable mode, the split type assembly structure solves the problems that a plurality of detection heads need to be installed when the deep wear early warning and the failure early warning are executed in the prior art and the adaptation problem when the friction material part of the friction piece needs to be changed in the adaptation mode, can adapt to different friction material types, friction performance parameters and friction material sizes, is convenient to be matched with different friction material conditions, and is simpler to manufacture, replace and maintain.
Drawings
Fig. 1 is a working principle diagram of a braking device of a hoisting mechanism of a tower crane provided by the embodiment of the invention.
Fig. 2 is a schematic view of an assembly structure of a detection head adopted in a braking device of a hoisting mechanism of a tower crane provided by an embodiment of the invention.
Fig. 3 is a schematic view of a multi-type assembly structure of a detection head adopted in a braking device of a hoisting mechanism of a tower crane provided by the embodiment of the invention.
Detailed Description
Referring to fig. 1 to 3, the braking device for a hoisting mechanism of a tower crane provided by the embodiment includes a friction member 10 and a braking member 20, the braking member 20 is connected with a rotating component of the hoisting mechanism of the tower crane, the friction member 10 includes a friction material portion 11 and a supporting portion 12, the friction material portion 11 has a receiving cavity 111, and a detection head 30 penetrating into the receiving cavity 111 of the friction material portion 11 is mounted on the supporting portion 12.
As can be seen from fig. 2, the detection head 30 includes a depth wear warning detection module 31 and a failure warning detection module 32 which are detachably assembled and connected, the deep wear early warning detection module 31 is arranged at the periphery of the failure alarm detection module 32, the first important problem solved by the split type assembly structure is that a plurality of detection heads are required to be installed when the early warning of deep abrasion and the early warning of failure are executed in the prior art, which brings about the limitation of installation space and the complexity of operation steps, when a split type assembly structure is adopted, the integrated detection head can be used as an independent integrated detection head for quick installation, and the second important problem to be solved is that when the friction material part 11 of the friction piece 10 needs to be modified in matching, the change of the friction material part 11 can be adapted by adjusting the combination of the deep wear early warning detection module 31 and the failure warning detection module 32.
With continued reference to fig. 2, the deep wear warning detection module 31 includes a base material and a first conductive wire 311 extending inside the base material, the failure warning detection module 32 includes a base material and a second conductive wire 321 extending inside the base material, the base material may be selected from any insulating material suitable for forming, resin and rubber materials are preferred, and since the principle of the circuit breaking detection is to sense the wear position by the wear-out of the first conductive wire 311 and the second conductive wire 321 extending inside the base material to obtain the wear size/depth, the base material should be more easily worn than the material of the friction material portion 11, and more preferably more easily worn than the conductive wire material.
As shown in fig. 2, the deep wear warning detection module 31 and the failure warning detection module 32 are both connected to a detection head base 33, a first terminal 331 is disposed inside the detection head base 33 and is engaged with the first conductive wire 311, and when the deep wear warning detection module 31 is assembled and connected to the periphery of the failure warning detection module 32, the first conductive wire 311 is engaged with the first terminal 331 by itself. As can be seen from the figure, the detection head base 33 is provided with a through hole 334 into which the first conductive wire 311 is inserted.
With reference to fig. 1 and 2, when the detection head 30 is mounted in the receiving cavity 111 of the friction material portion 11, the foremost position of the first lead 311 is closer to the friction working surface of the friction material portion 11 than the foremost position of the second lead 321, the foremost position of the first lead 311 corresponds to the position of the preset depth wear dimension of the friction material portion 11, and the foremost position of the second lead 321 corresponds to the position of the preset wear failure dimension of the friction material portion 11.
In addition, a second terminal 332 matched with the second conducting wire 321 is also arranged inside the detection head base 33, in the embodiment, the first terminal 331 and the second terminal 332 of the braking device of the hoisting mechanism of the tower crane can be connected with the MCU control module of the tower crane through a control circuit, after the detection head 30 detects that the first conducting wire 311 is disconnected due to abrasion, the control module arranged in the control room carries out deep abrasion early warning through early warning equipment, and after the detection head 30 detects that the second conducting wire 321 is disconnected due to abrasion, the control module arranged in the control room carries out abrasion failure warning through alarming equipment. The preset deep wear size is flexibly set according to the friction material part 11, the distance between the first lead 311 and the second lead 321 is scientifically designed according to the spare part period or the maintenance period in the production operation, and the basic principle is that after the deep wear early warning and before the wear failure warning, a worker has enough time to wait for part replacement and maintenance under the condition of no shutdown.
In the braking device of the hoisting mechanism of the tower crane of the embodiment, the failure alarm detection module 32 and the detection head base 33 are shown as being integrally manufactured to form a basic module, but alternatively, the failure alarm detection module and the detection head base can be assembled to form the basic module, so that the second lead 321 and the second terminal 332 can be fixedly connected together during installation, or can be spliced like the first lead 311 and the first terminal 331.
As a main object of the present invention, as shown in fig. 3, the present invention is to cooperate a base module as described above with a plurality of deep wear warning detection modules 31, the plurality of deep wear warning detection modules 31 are adapted to a plurality of different friction material portions 11 by being fabricated such that the foremost part of the first conductive wire 311 and the foremost part of the second conductive wire 321 have different intervals after the deep wear warning detection modules 31 are assembled and connected to the base module, and the plurality of different friction material portions 11 have different friction material types, friction performance parameters and/or friction material sizes, thereby facilitating the apparatus to be adapted to different friction materials.
Preferably, in the braking device of a tower crane hoisting mechanism shown in fig. 3, the distance H1 between the foremost portion of the first conducting wire 311 of the plurality of deep wear early warning detection modules 31 and the inner edge of the base material where the portion is located is different in size, and the distance H3 between the inner edge of the base material where the foremost portion of the first conducting wire 311 of the plurality of deep wear early warning detection modules 31 is located and the inner edge of the deep wear early warning detection module 31 is the same in size, so that the distance H1 between the foremost portion of the first conducting wire 311 and the inner edge of the base material where the portion is located determines the matching between the deep wear early warning detection module 31 and the base module (or the failure warning detection module 32), and the distance H3 between the innermost edge of the base material where the foremost portion of the first conducting wire 311 of the deep wear early warning detection module 31 is located and the inner edge of the deep wear early warning detection module 31 is the same in size, thereby ensuring the close matching between the deep wear early warning detection module 31 and the failure warning detection module 32, it is more stable in wear.
In addition, as shown in fig. 3, in the embodiment, the distance H2 between the foremost portion of the first conductive line 311 of the plurality of deep wear warning detection modules 31 and the outer edge of the base material where the foremost portion is located is the same, so that the installation, the use, the standardized design and the standardized manufacture are convenient. In addition, in the braking device of the hoisting mechanism of the tower crane according to the embodiment, the positioning groove 333 into which the deep wear early warning detection module 31 is inserted is provided at the upper portion of the detection head base 33, and as can be seen from fig. 1, the positioning groove 333 into which the deep wear early warning detection module 31 is inserted is provided at the upper portion of the detection head base 33, so that the two can be stably mounted on the support portion 12 in a press-fit manner.
In addition, although not shown, in a further embodiment, the base module described above may be provided in plural, and the plural base modules may be adapted to plural different friction material portions 11 by making the most distal end portion of the second lead 321 and the detection head base 33 have different pitches.
It can be seen that, according to the braking device of the tower crane hoisting mechanism provided by the invention, the adopted detection head 30 comprises the deep wear early warning detection module 31 and the failure warning detection module 32 which are assembled and connected in a detachable mode, the split type assembly structure solves the problems that a plurality of detection heads need to be installed when the deep wear early warning and the failure early warning are carried out and the adaptation problem when the friction material part of the friction piece needs to be changed in configuration, can adapt to different friction material types, friction performance parameters and friction material sizes, is convenient to be matched with different friction material conditions, and is simpler in manufacturing, replacement and maintenance in view of the overall design structure.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (8)
1. A kind of braking device of the hoisting mechanism of the tower crane, including friction member (10) and brake shoe (20), the said brake shoe (20) is connected with the rotary part of the hoisting mechanism of the tower crane, characterized by that:
the friction piece (10) comprises a friction material part (11) and a supporting part (12), the friction material part (11) is provided with an accommodating cavity (111), a detection head (30) penetrating into the accommodating cavity (111) of the friction material part (11) is mounted on the supporting part (12), the detection head (30) comprises a deep wear early warning detection module (31) and a failure warning detection module (32) which are detachably assembled and connected, and the deep wear early warning detection module (31) is arranged on the periphery of the failure warning detection module (32);
the deep wear early warning detection module (31) comprises a base material and a first lead (311) extending inside the base material, the failure warning detection module (32) comprises a base material and a second lead (321) extending inside the base material, the deep wear early warning detection module (31) and the failure warning detection module (32) are both connected to the detection head base (33), a first terminal (331) matched with the first lead (311) is arranged inside the detection head base (33), when the deep wear early warning detection module (31) is assembled and connected to the periphery of the failure warning detection module (32), the first lead (311) is connected with the first terminal (331), when the detection head (30) is installed in a containing cavity (111) of the friction material part (11) in a penetrating manner, the foremost position of the first lead (311) is closer to the friction work of the friction material part (11) than the foremost position of the second lead (321) The most front position of the first lead (311) corresponds to a preset depth wear dimension position of the friction material part (11), and the most front position of the second lead (321) corresponds to a preset wear failure dimension position of the friction material part (11);
the failure alarm detection module (32) and the detection head base (33) are integrally manufactured or assembled into a whole to form a base module, one base module is matched with a plurality of deep wear early warning detection modules (31), the plurality of deep wear early warning detection modules (31) are manufactured to enable the foremost part of the first lead (311) and the foremost part of the second lead (321) to have different intervals after the deep wear early warning detection modules (31) are assembled and connected to the base module so as to be adapted to a plurality of different friction material parts (11), and the different friction material parts (11) have different friction material types, friction performance parameters and/or friction material sizes;
the distance (H1) between the foremost part of the first conducting wire (311) of the plurality of depth wear early warning detection modules (31) and the inner edge of the base material of the part is different in size.
2. The brake device of the hoisting mechanism of the tower crane according to claim 1, wherein the distance (H2) between the foremost portion of the first conducting wire (311) of the plurality of the depth wear warning detection modules (31) and the outer edge of the base material of the foremost portion is the same as that of the foremost portion.
3. The brake device for a hoisting mechanism of a tower crane according to claim 1 or 2, wherein the spacing (H3) between the inner edge of the base material where the foremost portion of the first wire (311) of the plurality of deep wear warning detection modules (31) is located and the inner edge of the deep wear warning detection module (31) is the same.
4. The braking device for the hoisting mechanism of the tower crane according to claim 1, wherein the upper part of the detection head base (33) is provided with a positioning groove (333) for embedding the deep wear early warning detection module (31).
5. The braking device for the hoisting mechanism of the tower crane according to claim 4, wherein the detection head base (33) is provided with a through hole (334) for the first conducting wire (311) to be inserted into.
6. The brake device for a hoisting mechanism of a tower crane according to claim 1, wherein the detection head base (33) is internally provided with a second terminal (332) which is matched with the second lead (321).
7. A braking device for a hoisting mechanism of a tower crane according to claim 6, wherein the first terminal (331) and the second terminal (332) are connected to the tower crane MCU module via a control circuit.
8. A braking device for a hoisting mechanism of a tower crane according to claim 1, characterized in that a plurality of base modules are provided, which are adapted to a plurality of different friction material portions (11) by being made to have different distances between the foremost portion of the second conductor (321) and the base (33) of the detection head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210365221.3A CN114439872B (en) | 2022-04-08 | 2022-04-08 | Braking device of hoisting mechanism of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210365221.3A CN114439872B (en) | 2022-04-08 | 2022-04-08 | Braking device of hoisting mechanism of tower crane |
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| CN114439872A CN114439872A (en) | 2022-05-06 |
| CN114439872B true CN114439872B (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210365221.3A Active CN114439872B (en) | 2022-04-08 | 2022-04-08 | Braking device of hoisting mechanism of tower crane |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05141458A (en) * | 1991-11-13 | 1993-06-08 | Toyota Motor Corp | Wear detection device for brake pad |
| JPH0666334A (en) * | 1992-08-17 | 1994-03-08 | Toyota Motor Corp | Brake lining abrasion alarm device |
| JPH109309A (en) * | 1996-06-24 | 1998-01-13 | Hino Motors Ltd | Brake abrasion warning device |
| JP2000065107A (en) * | 1998-08-21 | 2000-03-03 | Nisshinbo Ind Inc | Abrasion warning device of frictional material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05248464A (en) * | 1992-03-09 | 1993-09-24 | Nisshinbo Ind Inc | Wear alarming device for friction member |
| EP1052423B1 (en) * | 1999-05-14 | 2004-03-03 | I.C.P. S.r.l. | Wear detector for a vehicle braking member |
| CN201696533U (en) * | 2010-05-27 | 2011-01-05 | 赵峰 | Alarm brake pad |
| CN207080536U (en) * | 2017-04-17 | 2018-03-09 | 上海汽车集团股份有限公司 | Friction disc wear amount for automobile brake detects warning system |
| CN207045326U (en) * | 2017-08-24 | 2018-02-27 | 重庆睿斯特金属制品有限公司 | A kind of novel automobile brake pad wear limiting alarm indicator lamp |
| CN207145493U (en) * | 2017-09-08 | 2018-03-27 | 山东省梁山神力汽车配件有限公司 | A kind of drum-type brake pad with warning function |
| CN110578763A (en) * | 2018-06-08 | 2019-12-17 | 派德森（京山）汽车零部件有限公司 | wear indicator for drum brake shoes |
| JP7151998B2 (en) * | 2018-07-26 | 2022-10-12 | 日本アイキャン株式会社 | Brake lining wear detection sensor and disc brake device |
| CN212744810U (en) * | 2020-05-27 | 2021-03-19 | 江门市南众电子有限公司 | Brake pad wear sensor and braking system |
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2022
- 2022-04-08 CN CN202210365221.3A patent/CN114439872B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141458A (en) * | 1991-11-13 | 1993-06-08 | Toyota Motor Corp | Wear detection device for brake pad |
| JPH0666334A (en) * | 1992-08-17 | 1994-03-08 | Toyota Motor Corp | Brake lining abrasion alarm device |
| JPH109309A (en) * | 1996-06-24 | 1998-01-13 | Hino Motors Ltd | Brake abrasion warning device |
| JP2000065107A (en) * | 1998-08-21 | 2000-03-03 | Nisshinbo Ind Inc | Abrasion warning device of frictional material |
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| CN114439872A (en) | 2022-05-06 |
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Denomination of invention: A braking device for lifting mechanism of tower crane Effective date of registration: 20230222 Granted publication date: 20220805 Pledgee: Zhejiang Xiaoshan rural commercial bank Limited by Share Ltd. Jingjiang branch Pledgor: HANGZHOU JIE DRIVE TECHNOLOGY Co.,Ltd. Registration number: Y2023980033135 |
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