CN215558588U - European crane for metallurgy - Google Patents
European crane for metallurgy Download PDFInfo
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- CN215558588U CN215558588U CN202120857800.0U CN202120857800U CN215558588U CN 215558588 U CN215558588 U CN 215558588U CN 202120857800 U CN202120857800 U CN 202120857800U CN 215558588 U CN215558588 U CN 215558588U
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- hoist
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Abstract
The utility model relates to a metallurgical European crane which comprises a bridge mechanism and a crane trolley structure, wherein the bridge mechanism comprises a bridge body and a first driving motor, the left side and the right side of the bridge body are provided with moving wheels for moving, the bridge body is also provided with the first driving motor for driving the moving wheels to rotate, the crane trolley structure is arranged on the bridge body and comprises a lifting device and a second driving motor, the second driving motor drives the lifting device to move on the bridge body, the lifting device is wrapped by a first lifting motor, a second lifting motor and a winding drum, and output shafts of the first lifting motor and the second lifting motor are respectively connected with two sides of the winding drum through a speed reducer. According to the utility model, the two sides of the winding drum of the lifting device are respectively provided with the lifting motors, when one lifting motor fails, the other lifting motor can still complete a working cycle, and the safety of the lifting device is improved.
Description
Technical Field
The utility model relates to the technical field of cranes, in particular to a metallurgical European crane.
Background
The crane refers to a multi-action hoisting machine, also called a crown block or a crane, for vertically lifting and horizontally carrying heavy objects within a certain range. The development and use of hoisting equipment in the market are becoming more widespread, and particularly in metallurgical enterprises, the hoisting equipment is used more frequently to transport molten metal liquid, so the demand for the hoisting equipment is higher, and once the hoisting equipment fails, irreparable safety accidents can be caused, but the safety device of the existing hoisting equipment (namely, a crown block) is simpler and does not completely meet the demand of the metallurgical enterprises.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a metallurgical European crane, wherein the two sides of a winding drum of a lifting device are respectively provided with a lifting motor, when one lifting motor breaks down, the other lifting motor can still complete a working cycle, and the safety of the lifting device is improved.
The technical purpose of the utility model is realized by the following technical scheme:
the utility model provides a metallurgical european style hoist that uses, includes crane span structure mechanism and crane trolley structure, crane span structure mechanism includes crane span structure body and first driving motor, the crane span structure body left and right sides is provided with the motion wheel that is used for the motion, still be equipped with the first driving motor of drive motion wheel pivoted on the crane span structure body, the crane trolley structure sets up on the crane span structure body, the crane trolley structure is including lifting to rise device and second driving motor, second driving motor orders about to rise the device and moves on the crane span structure body, it leans on first lift motor, second to rise motor and reel to rise the device package, first lift motor and second and rise the output shaft of motor and be connected through the both sides of reduction gear with the reel respectively.
The first lifting motor is started to enable the winding drum to rotate to pull up objects below the winding drum, when the first lifting motor breaks down and cannot rotate, the second lifting motor ensures that a working cycle is completed when the rated lifting capacity is achieved, the safety of the lifting process is effectively ensured, and the lifting device is maintained after one working cycle is completed.
In one of the embodiments, the reel is provided with a safety brake. Wherein the safety brake is an existing safety brake, such as an NK-160E type crane drum brake.
In one embodiment, the first lifting motor and the second lifting motor are both provided with overspeed switches, so that the condition that a lifted object is lifted suddenly when the first lifting motor or the second lifting motor fails is prevented, and in addition, the first lifting motor and the second lifting motor are both connected with the winding drum, so that the two overspeed switches can play a role in monitoring whether the rotating speeds of the two lifting motors are abnormal or not. Wherein the overspeed switch is an existing conventional overspeed switch, such as LY101-a overspeed switch.
In one embodiment, the hoisting device is provided with a trolley travel switch to prevent accidents caused by the hoisting device moving on the bridge frame body and impacting the bridge frame body. Wherein the trolley travel switch is a conventional travel switch, such as an SZL-VL travel switch.
In one embodiment, the bridge body is provided with a cart travel switch, so that accidents caused by collision during the movement of the bridge body are prevented. Wherein the large travel switch is a conventional travel switch, such as an SZL-VL travel switch.
In one embodiment, the first lifting motor and the second lifting motor are of a double-output-shaft structure, one side output shaft of the first lifting motor or the second lifting motor of the double-output shaft is connected with the winding drum through a speed reducer, and the other side output shaft of the first lifting motor or the second lifting motor of the double-output shaft is connected with the overspeed switch.
In one embodiment, the first lifting motor and the second lifting motor are provided with warning lamps. When the overspeed switch at the first lift motor detects that the rotating speed of the first lift motor is abnormal, a warning lamp at the first lift motor is turned on to remind an operator that the first lift motor has a fault; similarly, when the overspeed switch at the second lifting motor detects that the rotating speed of the second lifting motor is abnormal, the warning lamp at the second lifting motor is on.
In one embodiment, the first lifting motor and the second lifting motor are provided with buzzers. When the overspeed switch at the first lift motor detects that the rotating speed of the first lift motor is abnormal, the alarm lamp at the first lift motor is on, and meanwhile, the buzzer at the first lift motor gives out alarm sound to remind an operator that the first lift motor has a fault; similarly, when the overspeed switch at the auxiliary lifting motor detects that the rotating speed of the second lifting motor is abnormal, the alarm lamp at the second lifting motor is on, and the buzzer at the second lifting motor gives out an alarm sound to remind an operator that a fault occurs in the second lifting motor.
In one embodiment, a balance beam is arranged below the winding drum, and the winding drum is connected with the balance beam through a steel wire rope.
In one embodiment, a fixed pulley is arranged below the winding drum, a movable pulley is arranged on the balance beam, and the winding drum is connected with the balance beam by winding the fixed pulley and the movable pulley through a steel wire rope.
In conclusion, the utility model has the following beneficial effects:
the two sides of a winding drum of the lifting device are respectively provided with a lifting motor which is a first lifting motor and a second lifting motor, only one of the lifting motors is started in a normal working state, when the started lifting motor fails, the other lifting motor is started immediately to replace the failed lifting motor, so that the working cycle is completed, and then the failed lifting motor is maintained; according to the utility model, the safety of the crane lifting device is improved through the two lifting motors, and safety accidents in the lifting process are effectively avoided.
Drawings
FIG. 1 is a schematic of the present invention.
In the figure: the method comprises the following steps of 1-a bridge frame body, 2-a moving wheel, 3-a first driving motor, 4-a crane trolley structure, 5-a second driving motor, 6-a winding drum, 7-a first lifting motor, 8-a second lifting motor, 9-a speed reducer and 10-a balance beam.
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.
In a metallurgical enterprise, an european crane, namely a bridge crane, is used for hoisting molten metal, the molten metal is high in temperature, and stable hoisting of the molten metal is maintained in a hoisting process, the utility model provides the european crane for metallurgy, as shown in fig. 1, which comprises a bridge mechanism and a crane trolley structure 4, wherein the bridge mechanism comprises a bridge frame body 1 and a first driving motor 3, moving wheels 2 for movement are arranged on the left side and the right side of the bridge frame body 1, the first driving motor 3 for driving the moving wheels 2 to rotate is further arranged on the bridge frame body 1, the crane trolley structure 4 is arranged on the bridge frame body 1, the crane trolley structure 4 comprises a hoisting device and a second driving motor 5, the second driving motor 5 drives the hoisting device to move on the bridge frame body 1, and the hoisting device is wrapped by a first hoisting motor 7 for driving the hoisting device to move on the bridge frame body 1, The lifting mechanism comprises a second lifting motor 8 and a winding drum 6, wherein output shafts of the first lifting motor 7 and the second lifting motor 8 are respectively connected with two sides of the winding drum 6 through a speed reducer 9.
Further, the reel 6 is provided with a safety brake. Wherein the safety brake is an existing safety brake, such as a NK-160E crane drum 6 brake. And when the first lifting motor 7, the second lifting motor 8 and the speed reducer 9 are out of control, braking is carried out through a safety brake.
Further, the first lifting motor 7 and the second lifting motor 8 are provided with overspeed switches, so that the condition that the hoisted object is suddenly lifted when the first lifting motor 7 or the second lifting motor 8 fails is prevented, wherein the overspeed switches are conventional overspeed switches, such as LY101-A overspeed switches. In addition, because the first lifting motor 7 and the second lifting motor 8 are both connected with the winding drum 6, the two overspeed switches can both play a role in monitoring whether the rotating speeds of the two lifting motors are abnormal, for example, during normal operation, the first lifting motor 7 is started, the second lifting motor 8 is standby, when the rotating speed of the first lifting motor 7 is suddenly too high or too low, the winding drum 6 rotates to drive the output shaft of the second lifting motor 8 to rotate, the two overspeed switches detect that the rotating speed is abnormal, the overspeed switch at the position of the first lifting motor 7 feeds back to the control system, so that the first lifting motor 7 is turned off, and meanwhile, the overspeed switch at the position of the second lifting motor 8 feeds back to the control system, so that the second lifting motor 8 is started, and the rotating speed of the winding drum 6 is recovered to be normal.
Furthermore, the hoisting device is provided with a trolley travel switch, so that accidents caused by the fact that the hoisting device moves on the bridge frame body 1 and impacts the bridge frame body 1 are prevented. Wherein the trolley travel switch is a conventional travel switch, such as an SZL-VL travel switch. The crane span structure body 1 is provided with a cart travel switch, so that accidents caused by impact during the motion of the crane span structure body 1 are prevented. Wherein the large travel switch is a conventional travel switch, such as an SZL-VL travel switch.
Further, the first lifting motor 7 and the second lifting motor 8 are of a double-shaft structure, an output shaft at one side of the first lifting motor 7 or the second lifting motor 8 of the double-shaft structure is connected with the winding drum 6 through a speed reducer 9, and an output shaft at the other side of the first lifting motor 7 or the second lifting motor 8 of the double-shaft structure is connected with an overspeed switch.
Further, the first lifting motor 7 and the second lifting motor 8 are both provided with warning lamps. When the overspeed switch at the first lift motor 7 detects that the rotating speed of the first lift motor 7 is abnormal, a warning lamp at the first lift motor 7 is turned on to remind an operator that the first lift motor 7 has a fault; similarly, when the overspeed switch at the second hoisting motor 8 detects that the rotation speed of the second hoisting motor 8 is abnormal, the warning lamp at the second hoisting motor 8 is on.
Further, the first lifting motor 7 and the second lifting motor 8 are both provided with buzzers. When the overspeed switch at the first lift motor 7 detects that the rotating speed of the first lift motor 7 is abnormal, the alarm lamp at the first lift motor 7 is on, and the buzzer at the first lift motor 7 gives out alarm sound to remind an operator that the first lift motor 7 has a fault; similarly, when the overspeed switch of the auxiliary lifting motor detects that the rotation speed of the second lifting motor 8 is abnormal, the alarm lamp of the second lifting motor 8 is on, and the buzzer of the second lifting motor 8 gives out an alarm sound to remind an operator that a fault occurs in the second lifting motor 8.
Further, a balance beam 10 is arranged below the winding drum 6, and the winding drum 6 is connected with the balance beam 10 through a steel wire rope.
Further, a fixed pulley is arranged below the winding drum 6, a movable pulley is arranged on the balance beam 10, and the winding drum 6 is connected with the balance beam 10 by winding the fixed pulley and the movable pulley through a steel wire rope.
The working process of the present invention is explained with reference to the above embodiments:
under the action of a first driving motor 3, the bridge frame body 1 moves to the position above an object to be lifted, under the action of a second driving motor 5, the crane trolley structure 4 moves to the position right above the object to be lifted, after a balance beam 10 below a winding drum 6 is fixed with the object to be lifted, a first lifting motor 7 is used as a main lifting motor, a second lifting motor 8 is used as an auxiliary lifting motor, the main lifting motor is started, and the winding drum 6 rotates so as to lift the object to be lifted;
when the main hoisting motor fails, the rotating speed of the winding drum 6 is abnormal, if the rotating speed is too fast or too slow, an overspeed switch at the main hoisting motor feeds back to the control system, so that the main hoisting motor, namely the first hoisting motor 7, is turned off, and meanwhile, an overspeed switch at the auxiliary hoisting motor, namely the second hoisting motor 8, feeds back to the control system, so that the auxiliary hoisting motors are simultaneously started, the rotating speed of the winding drum 6 is recovered to be normal, the working cycle is completed, and then the first hoisting motor 7 is maintained;
when the first lift motor 7 breaks down, the warning lamp and the buzzer on one side of the first lift motor 7 are started simultaneously to remind an operator that the first lift motor 7 breaks down, so that the maintenance efficiency is improved;
after the maintenance is finished, the second lifting motor 8 can be continuously started to be used as a main lifting motor, and the first lifting motor 7 which is well maintained is used as an auxiliary lifting motor for standby.
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. A metallurgical European crane is characterized by comprising a bridge frame mechanism and a crane trolley structure (4), the bridge mechanism comprises a bridge body (1) and a first driving motor (3), moving wheels (2) for movement are arranged on the left side and the right side of the bridge body (1), the bridge frame body (1) is also provided with a first driving motor (3) for driving the moving wheel (2) to rotate, the trolley structure (4) is arranged on the bridge frame body (1), the trolley structure (4) comprises a lifting device and a second driving motor (5), the second driving motor (5) drives the lifting device to move on the bridge frame body (1), the lifting device comprises a first lifting motor (7), a second lifting motor (8) and a winding drum (6), and output shafts of the first lifting motor (7) and the second lifting motor (8) are respectively connected with two sides of the winding drum (6) through a speed reducer (9).
2. A metallurgical hoist of the type defined in claim 1, characterized in that the drum (6) is provided with a safety brake.
3. A metallurgical hoist according to claim 2, characterized in that the first hoist motor (7) and the second hoist motor (8) are each provided with an overspeed switch.
4. A metallurgical hoist as claimed in claim 1, wherein the hoist is provided with a trolley travel switch.
5. A metallurgical hoist as claimed in claim 4, characterized in that the bridge body (1) is provided with a cart travel switch.
6. An Oldham crane for metallurgy according to claim 1, wherein the first lifting motor (7) and the second lifting motor (8) are of a double-output-shaft structure, one side output shaft of the first lifting motor (7) or the second lifting motor (8) of the double-output shaft is connected with the winding drum (6) through a speed reducer (9), and the other side output shaft is connected with an overspeed switch.
7. A metallurgical hoist according to claim 6, characterized in that the first (7) and second (8) hoist motors are provided with warning lights.
8. An euro-lift for metallurgy according to claim 7, characterized in that the first hoisting motor (7) and the second hoisting motor (8) are each provided with a buzzer.
9. A metallurgical european crane according to claim 1, characterized in that a balance beam (10) is arranged below the reel drum (6), and the reel drum (6) is connected to the balance beam (10) by means of a wire rope.
10. An euro-lift for metallurgy use according to claim 9, wherein a fixed pulley is provided under the drum (6), the balance beam (10) is provided with a movable pulley, and the drum (6) is connected to the balance beam (10) by winding the fixed pulley and the movable pulley around a wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120857800.0U CN215558588U (en) | 2021-04-23 | 2021-04-23 | European crane for metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120857800.0U CN215558588U (en) | 2021-04-23 | 2021-04-23 | European crane for metallurgy |
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| Publication Number | Publication Date |
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| CN215558588U true CN215558588U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120857800.0U Active CN215558588U (en) | 2021-04-23 | 2021-04-23 | European crane for metallurgy |
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| CN (1) | CN215558588U (en) |
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 CN202120857800.0U patent/CN215558588U/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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