CN215558480U - European crane hoisting mechanism with double protection devices - Google Patents
European crane hoisting mechanism with double protection devices Download PDFInfo
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- CN215558480U CN215558480U CN202120858642.0U CN202120858642U CN215558480U CN 215558480 U CN215558480 U CN 215558480U CN 202120858642 U CN202120858642 U CN 202120858642U CN 215558480 U CN215558480 U CN 215558480U
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Abstract
The utility model relates to a hoisting mechanism of an European crane with a double protection device, which comprises a hoisting motor, a winding drum and a balance beam, wherein the hoisting motor is connected with one side of the winding drum through a hollow shaft of a speed reducer by a coupler, the balance beam is arranged below the winding drum in parallel, two sides of the balance beam are respectively provided with a group of movable pulleys, two groups of fixed pulleys are arranged between the balance beam and the winding drum, two ends of the winding drum are respectively provided with a group of steel wire ropes, the middle of the balance beam is provided with two fixed parts, one end of each steel wire rope is fixed on the winding drum, the other end of each steel wire rope sequentially bypasses the movable pulley and the fixed pulley on the same side and is fixed on the fixed part on the other side of the balance beam to form a pulley block, and a tension sensor is arranged on the fixed part and is positioned between the fixed part and the steel wire ropes. When one side of the balance beam has a fault, the steel wire rope on the other side maintains the balance state of the balance beam, and the lifting motor stops running to keep the position of the balance beam, so that double protection is realized, and safety accidents can be effectively avoided.
Description
Technical Field
The utility model relates to an European crane, in particular to a hoisting mechanism of the European crane with a double protection device.
Background
The European crane has the characteristics of light weight, small wheel pressure, compact structure and the like, and is more and more accepted by domestic manufacturers. At present, the European style crane is widely applied to various industries. For example, in the metallurgical industry, the hoisting mechanism of the european crane is widely used for hoisting high-temperature molten metal. The hoisting mechanism of the European crane drives a winding drum to rotate by a hoisting motor through a coupling and a hollow shaft of a speed reducer, so that a steel wire rope or a cable wound on the winding drum drives a balance beam to ascend or descend, and containers such as steel ladles and the like filled with metal liquid are hoisted below the balance beam. However, the existing hoisting mechanism still has potential safety hazards, for example, when a steel wire rope between a winding drum and a balance beam breaks down, the balance beam loses balance and a container filled with metal liquid topples, so that safety accidents occur.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide the hoisting mechanism of the European crane with the double protection device, when the steel wire rope on one side of the balance beam breaks down, the steel wire rope on the other side of the balance beam maintains the balance state of the balance beam, and the hoisting motor stops running to keep the position of the balance beam, so that the double protection is realized, and the safety accident can be effectively avoided.
The technical purpose of the utility model is realized by the following technical scheme:
the utility model provides an european style hoist hoisting mechanism with duplicate protection device, is including playing to rise motor, reel and compensating beam, it passes through the shaft coupling and is connected through one side of reduction gear hollow shaft and reel to play to rise the motor, compensating beam parallel arrangement is in the reel below, the compensating beam both sides are equipped with a set of movable pulley respectively, be provided with between compensating beam and the reel respectively with two sets of fixed pulleys of two sets of movable pulley adaptations, the both ends of reel are equipped with a set of wire rope respectively, the centre of compensating beam is provided with two fixed parts, wire rope's one end is fixed on the reel, wire rope's the other end is walked around the movable pulley and the fixed pulley of homonymy in proper order and is fixed and is formed an assembly pulley on the fixed part of compensating beam opposite side, be provided with force sensor on the fixed part, force sensor is located between fixed part and the wire rope.
In one embodiment, the two fixing portions are respectively arranged in the middle of the top surface of the balance beam.
In one embodiment, warning lamps are arranged on the left side and the right side of the balance beam.
In one embodiment, a buzzer is arranged on the balance beam. When the steel wire rope on one side breaks down, the buzzer is started to remind an operator that the steel wire rope of the balance beam breaks down.
In one embodiment, the fixing part is of a T-shaped structure, so that the steel wire rope can be wound and fixed conveniently.
In one embodiment, the movable pulleys comprise a first movable pulley, a second movable pulley, a third movable pulley and a fourth movable pulley, the first movable pulley and the second movable pulley are arranged on the left side of the balance beam and are rotatably connected with the balance beam, the third movable pulley and the fourth movable pulley are arranged on the right side of the balance beam and are rotatably connected with the balance beam, and the first movable pulley, the second movable pulley, the third movable pulley and the fourth movable pulley are arranged in an axisymmetric manner by taking the vertical center line of the balance beam as an axis.
In one embodiment, the fixed pulleys comprise a first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley, the first fixed pulley and the second fixed pulley are arranged above the left side of the balance beam, the third fixed pulley and the fourth fixed pulley are arranged above the right side of the balance beam, and the first fixed pulley and the second fixed pulley and the third fixed pulley and the fourth fixed pulley are arranged in an axisymmetric manner with the vertical center line of the balance beam.
In one embodiment, the left side and the right side of the balance beam are provided with hooks. When the steel wire rope of the pulley block breaks down, the steel wire rope is put down from the upper part of the balance beam to be connected with the hook, so that a fulcrum is provided, and the broken pulley block is convenient to maintain.
In one embodiment, the lengths of the steel wire ropes of the two pulley blocks are the same.
In one embodiment, the steel cord is a high temperature resistant steel cord.
In conclusion, the utility model has the following beneficial effects:
the steel wire ropes of the two pulley blocks can independently maintain the balance state of the balance beam, when the steel wire rope of one pulley block breaks down, the steel wire rope of the other pulley block can still maintain the balance beam to avoid the overturning of a container below the balance beam, the tension sensor is arranged at the fixed part of the balance beam for fixing the steel wire rope, the state of the steel wire rope is detected in real time, the steel wire rope can feed back in time when the steel wire rope breaks down, the maintenance efficiency is improved, and safety accidents are effectively prevented.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1-reel, 2-balance beam, 3-fixed part, 4-fixed pulley, 41-first fixed pulley, 42-second fixed pulley, 43-third fixed pulley, 44-fourth fixed pulley, 5-movable pulley, 51-first movable pulley, 52-second movable pulley, 53-third movable pulley, 54-fourth movable pulley.
Detailed Description
The utility model is described in detail below with reference to the figures and examples.
It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.
As shown in figure 1, the utility model provides a hoisting mechanism of an European crane with a double protection device, which comprises a hoisting motor, a winding drum 1 and a balance beam 2, wherein the hoisting motor is connected with one side of the winding drum 1 through a hollow shaft of a speed reducer by a coupler, the balance beam 2 is arranged below the winding drum 1 in parallel, two sides of the balance beam 2 are respectively provided with a group of movable pulleys 5, two groups of fixed pulleys 4 respectively matched with the two groups of movable pulleys 5 are arranged between the balance beam 2 and the winding drum 1, two ends of the winding drum 1 are respectively provided with a group of steel wire ropes, the middle of the balance beam 2 is provided with two fixed parts 3, one end of each steel wire rope is fixed on the winding drum 1, the other end of each steel wire rope sequentially bypasses the movable pulley 5 and the fixed pulley 4 on the same side and is fixed on the fixed part 3 on the other side of the balance beam 2 to form a pulley block, and a tension sensor is arranged on the fixed part 3, the tension sensor is positioned between the fixing part 3 and the steel wire rope. The tension sensor is an existing tension sensor meeting the use requirement, such as an S-shaped load cell U10E, and the control system can be a PLC control system, such as a Siemens S7-300 programmable logic controller.
Furthermore, the lengths of the steel wire ropes of the two pulley blocks are the same, and the steel wire ropes are high-temperature-resistant steel wire ropes.
The working principle of the utility model is as follows: two pulley blocks are formed on the balance beam 2, when a steel wire rope of one pulley block breaks down, the other pulley block plays a role in keeping the balance state of the balance beam 2, a container filled with metal solution below is prevented from overturning, meanwhile, a tension sensor of the broken pulley block detects that the steel wire rope is loosened in real time, information of the fault of the pulley block is transmitted to a control system, and the control system immediately stops a lifting motor to operate, so that the balance beam 2 is prevented from being continuously lifted.
Further, two of the fixing portions 3 are respectively disposed in the middle of the top surface of the balance beam 2. The two fixing parts 3 are symmetrically distributed on two sides of the vertical central line of the balance beam 2, the steel wire ropes of the pulley blocks positioned on the left side and the right side of the balance beam 2 are connected with the fixing parts 3 on different sides, and even if the steel wire ropes of the pulley blocks on one side break or loosen due to faults, the normal pulley blocks on the other side can still keep the balance state of the balance beam 2.
Further, the left side and the right side of the balance beam 2 are provided with warning lamps. When the steel wire rope on one side breaks down, the corresponding tension sensor detects that the steel wire rope on the side is loosened in real time, fault information is sent to the control system, and the control system starts the warning lamp on the side of the balance beam 2 to warn an operator and remind the fault position.
Further, a buzzer is arranged on the balance beam 2. When the steel wire rope on one side breaks down, the buzzer is started to remind an operator that the steel wire rope of the balance beam 2 breaks down.
Further, the fixing portion 3 is of a T-shaped structure, and the steel wire rope is convenient to wind and fix.
Further, the movable pulleys 5 include a first movable pulley 51, a second movable pulley 52, a third movable pulley 53 and a fourth movable pulley 54, the first movable pulley 51 and the second movable pulley 52 are disposed on the left side of the balance beam 2 and rotatably connected to the balance beam 2, the third movable pulley 53 and the fourth movable pulley 54 are disposed on the right side of the balance beam 2 and rotatably connected to the balance beam 2, and the first movable pulley 51, the second movable pulley 52, the third movable pulley 53 and the fourth movable pulley 54 are disposed axially symmetrically with respect to the vertical center line of the balance beam 2; fixed pulley 4 includes first fixed pulley 41, second fixed pulley 42, third fixed pulley 43 and fourth fixed pulley 44, first fixed pulley 41 and second fixed pulley 42 set up the left side top at compensating beam 2, third fixed pulley 43 and fourth fixed pulley 44 set up the right side top at compensating beam 2, and first fixed pulley 41 and second fixed pulley 42 and third fixed pulley 43 and fourth fixed pulley 44 use compensating beam 2 vertical center line to be axisymmetric setting.
As shown in fig. 1, the winding method of the steel cord of the present invention is as follows:
for the pulley block on the left side of the balance beam 2, one end of a steel wire rope is fixed on the winding drum 1, and then the steel wire rope is wound and fixed according to the sequence of a first movable pulley 51, a first fixed pulley 41, a second movable pulley 52, a second fixed pulley 42 and a fixed part 3 on the right side;
for the pulley block on the right side of the balance beam 2, one end of a steel wire rope is fixed on the winding drum 1, and then the steel wire rope is wound and fixed according to the sequence of a fourth movable pulley 54, a fourth fixed pulley 44, a third movable pulley 53, a third fixed pulley 43 and a fixed part 3 on the left side;
as can be seen from fig. 1, after the wire ropes of the two pulley blocks are fixedly connected with the fixing portion 3 of the balance beam 2, the wire ropes of the two pulley blocks are crossed, and when the wire rope of one of the pulley blocks fails, the wire rope of the other pulley block can still pull the balance beam 2, so as to maintain the original state of the balance beam 2.
Furthermore, the left side and the right side of the balance beam 2 are provided with hooks, which are not shown in the attached drawing 1, when the steel wire rope of the pulley block breaks down, the steel wire rope is put down from the upper part of the balance beam 2 to be connected with the hooks, so that a pivot is provided, and the broken pulley block is convenient to maintain.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (10)
1. The European crane hoisting mechanism with the double protection device is characterized by comprising a hoisting motor, a winding drum (1) and a balance beam (2), wherein the hoisting motor is connected with one side of the winding drum (1) through a coupler by a hollow shaft of a speed reducer, the balance beam (2) is arranged below the winding drum (1) in parallel, two sides of the balance beam (2) are respectively provided with a group of movable pulleys (5), two groups of fixed pulleys (4) which are respectively matched with the two groups of movable pulleys (5) are arranged between the balance beam (2) and the winding drum (1), two ends of the winding drum (1) are respectively provided with a group of steel wire ropes, the middle of the balance beam (2) is provided with two fixing parts (3), one end of each steel wire rope is fixed on the winding drum (1), the other end of each steel wire rope sequentially bypasses the movable pulley (5) and the fixed pulley (4) on the same side and is fixed on the fixing part (3) on the other side of the balance beam (2) to form a pulley block, and a tension sensor is arranged on the fixing part (3) and is positioned between the fixing part (3) and the steel wire rope.
2. A hoisting mechanism with a double protection device according to claim 1, characterized in that two of said fixing parts (3) are respectively arranged in the middle of the top surface of the compensating beam (2).
3. A hoisting mechanism with a double protection device for an european crane according to claim 1, wherein the balance beam (2) is provided with warning lights on both left and right sides.
4. A hoisting mechanism with a double protection device for an european crane according to claim 3, characterized in that the balance beam (2) is provided with a buzzer.
5. A jack-up mechanism with double protection according to claim 2, characterized in that the fixing part (3) is of T-shaped configuration.
6. An european crane hoisting mechanism with a double protection device according to claim 1, wherein the movable pulley (5) comprises a first movable pulley (51), a second movable pulley (52), a third movable pulley (53) and a fourth movable pulley (54), the first movable pulley (51) and the second movable pulley (52) are arranged at the left side of the balance beam (2) and rotatably connected with the balance beam (2), the third movable pulley (53) and the fourth movable pulley (54) are arranged at the right side of the balance beam (2) and rotatably connected with the balance beam (2), and the first movable pulley (51) and the second movable pulley (52) and the third movable pulley (53) and the fourth movable pulley (54) are arranged axisymmetrically with respect to the vertical center line of the balance beam (2).
7. An european crane hoisting mechanism with a double protection device according to claim 6, wherein the fixed pulley (4) comprises a first fixed pulley (41), a second fixed pulley (42), a third fixed pulley (43) and a fourth fixed pulley (44), the first fixed pulley (41) and the second fixed pulley (42) are arranged above the left side of the balance beam (2), the third fixed pulley (43) and the fourth fixed pulley (44) are arranged above the right side of the balance beam (2), and the first fixed pulley (41) and the second fixed pulley (42) and the third fixed pulley (43) and the fourth fixed pulley (44) are arranged axially symmetrically with respect to the vertical center line of the balance beam (2).
8. A hoisting mechanism with a double protection device according to claim 1, characterized in that the balance beam (2) is provided with hooks on both its left and right sides.
9. A jack-up mechanism with a double protection device as claimed in claim 1, wherein the lengths of the wire ropes of both said pulley blocks are the same.
10. The hoisting mechanism of claim 1 wherein the wire rope is a high temperature resistant wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120858642.0U CN215558480U (en) | 2021-04-23 | 2021-04-23 | European crane hoisting mechanism with double protection devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120858642.0U CN215558480U (en) | 2021-04-23 | 2021-04-23 | European crane hoisting mechanism with double protection devices |
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| Publication Number | Publication Date |
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| CN215558480U true CN215558480U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120858642.0U Active CN215558480U (en) | 2021-04-23 | 2021-04-23 | European crane hoisting mechanism with double protection devices |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173504A (en) * | 2021-04-23 | 2021-07-27 | 韶关市泰力起重机有限公司 | European crane with protection device |
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2021
- 2021-04-23 CN CN202120858642.0U patent/CN215558480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173504A (en) * | 2021-04-23 | 2021-07-27 | 韶关市泰力起重机有限公司 | European crane with protection device |
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