CN209922770U - Constant tension protection device for marine crane - Google Patents
Constant tension protection device for marine crane Download PDFInfo
- Publication number
- CN209922770U CN209922770U CN201920216291.6U CN201920216291U CN209922770U CN 209922770 U CN209922770 U CN 209922770U CN 201920216291 U CN201920216291 U CN 201920216291U CN 209922770 U CN209922770 U CN 209922770U
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- hydraulic
- oil
- energy accumulator
- oil outlet
- way
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Abstract
The utility model relates to a maritime work hangs permanent tension protection device. The winch is connected with an output shaft of the hydraulic motor through a winch gear set, a brake is arranged inside the winch gear set, a solenoid valve is arranged on a connecting pipeline of a hydraulic oil outlet of the first energy accumulator and a hydraulic control one-way valve control oil way, a hydraulic one-way valve is arranged on a connecting pipeline of a hydraulic oil outlet of the second energy accumulator and an oil inlet of the hydraulic motor, a cross joint is arranged on a connecting pipeline of a hydraulic oil outlet of the first energy accumulator and a hydraulic control one-way valve control oil way, an oil inlet of an overflow valve is connected with an oil outlet of the hydraulic motor, an oil outlet of the overflow valve is connected with an oil tank, a wire guide wheel is arranged at a folding arm of the. The utility model discloses to the sea undulation production displacement poor, adopt the overload protection function, make wire rope keep permanent tension, the winch relaxs wire rope, alleviates wire rope tension.
Description
Technical Field
The utility model relates to a marine engineering hoist and mount technical field, specifically speaking relate to marine engineering hangs permanent tension protection device.
Background
At present, in the marine crane for ships, when a hook head of a crane hooks goods, a brake system in a winch of the crane can fix a gearbox of the winch and then start a hoisting function. However, due to the fluctuation of sea waves and the change of the relative position between the ship and the ship, the steel wire rope can be subjected to a large pulling force in the hoisting process, the steel wire rope can be broken in severe cases, hooked goods can generate relative displacement, and the safe hoisting state cannot be achieved.
Disclosure of Invention
An object of the utility model is to solve above-mentioned problem, provide the maritime work and hang permanent tension protection device, it adopts the overload protection function, makes wire rope keep permanent tension, reaches to lift by crane safely.
In order to solve the above problem, the utility model discloses a technical scheme as follows:
a constant tension protection device for a marine crane, wherein a winch 1 is connected with an output shaft of a hydraulic motor 2 through a winch gear set, and a brake 3 is arranged in the winch gear set, and the constant tension protection device is characterized in that compressed air is connected with the upper parts of a first energy accumulator 41 and a second energy accumulator 42, an electromagnetic valve 44 is arranged on a connecting pipeline between a hydraulic oil outlet 411 of the first energy accumulator and a hydraulic control check valve control oil way 431, a hydraulic check valve 43 is arranged on a connecting pipeline between a hydraulic oil outlet of the second energy accumulator 42 and an oil inlet 451 of the hydraulic motor, a cross joint is arranged on a connecting pipeline between the hydraulic oil outlet of the first energy accumulator 41 and the hydraulic control check valve control oil way 431, the cross joint is connected with an oil inlet 461 of the brake through a pipeline, the cross joint is connected with a connecting pipeline of an overflow valve control oil way 471 through a pipeline, an oil inlet 472 of the, the central shaft of the wire guide wheel 5 is a shaft pin sensor 6, and the shaft pin sensor 6 is connected with the electromagnetic valve 44 through the controller.
Compared with the prior art, the utility model has the beneficial characteristics that:
the compressed gas communication pipelines of the first energy accumulator and the second energy accumulator are normally opened, when two ships generate relative displacement and the tension of the steel wire rope is large, the pressure value detected by the shaft pin sensor is large, the electromagnetic valve is started through the controller and opened, and the compressed gas in the first energy accumulator can compress hydraulic oil in the first energy accumulator to pass through the electromagnetic valve, so that the oil way is opened. At the moment, the hydraulic control check valve control oil way, the oil inlet pipeline of the brake and the overflow valve control oil way are all filled with hydraulic oil, and the brake starts the winch; the hydraulic control one-way valve and the overflow valve are opened, the compressed gas in the second energy accumulator can compress the hydraulic oil in the energy accumulator to pass through the hydraulic control one-way valve and the overflow valve, the hydraulic motor oil inlet pipeline and the hydraulic motor oil outlet pipeline are filled with the hydraulic oil, the hydraulic motor runs, the hydraulic motor drives the winch to run, the winch loosens the steel wire rope, and the constant tension of the steel wire rope is relieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a crane of the present invention;
FIG. 2 is a schematic view of the connection structure of the winch, the brake and the hydraulic motor;
FIG. 3 is a schematic view of the winch of the present invention;
FIG. 4 is a hydraulic system diagram of the constant tension protection device of the marine crane of the present invention;
reference numerals: the hydraulic control system comprises a winch-1, a hydraulic motor-2, a brake-3, a first energy accumulator-41, a hydraulic oil outlet-411 of the first energy accumulator, a second energy accumulator-42, a hydraulic check valve-43, a hydraulic control check valve control oil path-431, an electromagnetic valve-44, a hydraulic motor oil inlet-451, a hydraulic motor oil outlet-452, a brake oil inlet-461, an overflow valve control oil path-471, an overflow valve oil inlet-472, an overflow valve oil outlet-473, an oil tank-48, a wire guide wheel-5 and a shaft pin sensor-6.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
Referring to the description as shown in figures 1 to 3,
a constant tension protection device for a marine crane is characterized in that a winch 1 is connected with an output shaft of a hydraulic motor 2 through a winch gear set, a brake 3 is arranged in the winch gear set and used for stopping and starting transmission of the winch gear set, and an output shaft of the hydraulic motor 2 transmits torque for the winch gear set. The upper parts of the first energy accumulator 41 and the second energy accumulator 42 are connected with compressed air, a solenoid valve 44 is arranged on a connecting pipeline between a hydraulic oil outlet 411 of the first energy accumulator and a hydraulic control one-way valve control oil way 431, a hydraulic one-way valve 43 is arranged on a connecting pipeline between a hydraulic oil outlet of the second energy accumulator 42 and a hydraulic motor oil inlet 451, a four-way joint is arranged on a connecting pipeline between the hydraulic oil outlet of the first energy accumulator 41 and the hydraulic control one-way valve control oil way 431, the four-way joint is connected with an oil inlet 461 of a brake through a pipeline, the four-way joint is connected with a connecting pipeline of an overflow valve control oil way 471 through a pipeline, an overflow valve oil inlet 472 is connected with a hydraulic motor oil outlet 452, an overflow valve oil outlet 473 is connected with an oil tank 48, a wire guide wheel 5 is arranged at. One end of a steel wire rope is wound on the winch and extends to the lifting hook along the upper arm of the crane by bypassing the guide wheel, a numerical signal detected by the shaft pin sensor is transmitted to the controller, the signal received by the controller is analyzed, when the numerical signal exceeds a set value, the controller opens the electromagnetic valve, the brake is opened at the moment, the output shaft of the hydraulic motor operates, the winch rotates, the steel wire rope is loosened, and stable constant tension is kept.
The winch gear set adopted in the embodiment is a three-level planetary reducer, the model of the hydraulic control one-way valve is SV6PB, the model of the overflow valve is DBDS6G, and the model of the shaft pin sensor is Fsens MA.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A constant tension protection device of a marine crane is characterized in that the upper parts of a first energy accumulator (41) and a second energy accumulator (42) are connected with compressed air, a solenoid valve (44) is arranged on a connecting pipeline of a hydraulic oil outlet (411) of the first energy accumulator and a hydraulic control one-way valve control oil way (431), a hydraulic one-way valve (43) is arranged on a connecting pipeline of a hydraulic oil outlet of the second energy accumulator (42) and a hydraulic motor oil inlet (451), a cross joint is arranged on a connecting pipeline of the hydraulic oil outlet of the first energy accumulator (41) and the hydraulic control one-way valve control oil way (431), the cross joint is connected with an oil inlet (461) of a brake through a pipeline, the cross joint is connected with a connecting pipeline of an overflow valve control oil way (471) through a pipeline, and an overflow valve (472) is connected with an oil outlet (452) of the hydraulic motor, an oil outlet (473) of the overflow valve is connected with an oil tank (48), a wire guide wheel (5) is arranged at the folding arm of the marine crane, a central shaft of the wire guide wheel (5) is a shaft pin sensor (6), and the shaft pin sensor (6) is connected with an electromagnetic valve (44) through a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920216291.6U CN209922770U (en) | 2019-02-20 | 2019-02-20 | Constant tension protection device for marine crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920216291.6U CN209922770U (en) | 2019-02-20 | 2019-02-20 | Constant tension protection device for marine crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209922770U true CN209922770U (en) | 2020-01-10 |
Family
ID=69068492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920216291.6U Expired - Fee Related CN209922770U (en) | 2019-02-20 | 2019-02-20 | Constant tension protection device for marine crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209922770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623055A (en) * | 2020-06-24 | 2020-09-04 | 北京争先甲电力科技开发有限公司 | Tensioner brake caliper type brake device |
-
2019
- 2019-02-20 CN CN201920216291.6U patent/CN209922770U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623055A (en) * | 2020-06-24 | 2020-09-04 | 北京争先甲电力科技开发有限公司 | Tensioner brake caliper type brake device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |