Metallurgical crane with automatic rotating lifting appliance
By setting up an annular bracket and a rotating mechanism on the main sling of the metallurgical crane, an automatic rotating sling is realized, which solves the problem that the existing metallurgical crane sling does not have the rotation function, and improves work efficiency and operation safety.
Patent Information
- Application Number
- CN202420634360.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The spreaders of existing metallurgical cranes lack rotational function, which leads to inconvenience in use, low working efficiency, and dangerous operation of staff in high temperature environments.
A metallurgical crane with automatic rotating spreader was designed. By setting an annular bracket and a rotating mechanism on the main spreader, the automatic rotation of the main hook is realized, and the auxiliary spreader is used to flip and pour the ladle bag and pour it through the main hook. .
The automatic rotation of the spreader is realized, the convenience of use and working efficiency of the metallurgical crane is improved, the operation risks of staff in high-temperature environments are reduced, and the operation is ensured safe and efficient.
Smart Images
Figure CN222475979U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cranes, and in particular relates to a metallurgical crane with an automatic rotating hanger. Background Art
[0002] A crane refers to a multi-action lifting machinery that vertically lifts and horizontally transports heavy objects within a certain range, also known as an overhead crane, an overhead crane, or a crane; a crane generally includes a crane main beam, a crane end beam, a trolley traveling mechanism, a lifting trolley, a trolley traveling mechanism, a lifting mechanism, and a lifting sling, and a metallurgical crane generally includes a main lifting hook and an auxiliary lifting hook. When in use, the main lifting hook lifts the ladle, the auxiliary lifting hook hangs the lower end of the ladle, and the auxiliary lifting hook is lifted to pour the molten steel in the ladle. However, most of the existing metallurgical crane slings do not have a rotating function. When in use, the staff needs to pull the main lifting hook by hand and flip it at a certain angle to hang the main lifting hook on the lifting ears on both sides of the ladle. Since the temperature of the molten steel in the ladle is relatively high, it is harmful to the health of the staff working around the ladle and it is relatively dangerous. Therefore, the existing metallurgical crane slings are inconvenient to use and have low work efficiency. Utility Model Content
[0003] In order to solve the technical problems that the existing metallurgical cranes are inconvenient to rotate and have low working efficiency, the utility model provides a metallurgical crane with an automatic rotating sling, comprising a crane frame, two ends of the crane frame are provided with a trolley traveling mechanism, the trolley traveling mechanism is assembled at the two ends of the end beam, the trolley traveling mechanism comprises a trolley traveling wheel and a trolley traveling motor, the trolley traveling wheel is rotatably assembled on the end beam, the trolley traveling motor is fixed on the inner side of the end beam, and the power output shaft of the trolley traveling motor is transmission-connected with the trolley traveling wheel, the trolley traveling motor is started, the trolley traveling motor drives the trolley traveling wheel to rotate, and the trolley traveling wheel drives the crane frame to move freely along the trolley traveling track. The crane frame is equipped with a lifting trolley, which is provided with a trolley travel mechanism. The trolley travel mechanism includes a trolley travel wheel installed on the lifting trolley and a trolley travel motor fixed on the lifting trolley. The trolley travel motor is connected to the trolley travel wheel by transmission. The trolley travel wheel is roller-pressed on the trolley travel track laid on the top of the main beam. When the trolley travel motor is started, the trolley travel motor drives the trolley travel wheel to rotate. The lifting trolley is provided with a first lifting mechanism, a second lifting mechanism and a third lifting mechanism. The second lifting mechanism is arranged above the first lifting mechanism, and the first lifting mechanism and the second lifting mechanism are arranged in a cross shape. The main lifting device and the auxiliary lifting device are arranged below the crane frame. The main lifting device is connected to the first lifting mechanism and the second lifting mechanism by a steel wire rope, and the auxiliary lifting device is connected to the third lifting mechanism by a steel wire rope. The main hoist includes an annular bracket, and four pulley brackets are arranged at the top of the annular bracket, and the four pulley brackets are evenly spaced around the annular bracket. The upper end of the pulley bracket is equipped with a pulley group, and each pulley group is connected to the first lifting mechanism and the second lifting mechanism through a steel wire rope. The cross section of the annular bracket is L-shaped, and an annular track is fixed on the annular bracket. A support platform is arranged above the annular bracket, and a plurality of rotating mechanisms for driving the support platform to rotate are arranged at the bottom end of the support platform. The rotating mechanism includes an inverted U-shaped roller bracket, the top end of the roller bracket is fixed to the bottom end of the support platform, and the lower end of the roller bracket is rotatably equipped with a roller, and the roller is press-fitted on the annular track. A motor is fixed on the roller bracket, and the power output shaft of the motor is connected to the roller. When the motor is started, the motor drives the roller to rotate along the annular track, thereby driving the support platform and the main hook below the support platform to rotate. A horizontal support beam is arranged below the annular bracket, and a plurality of fixing plates are fixed between the support beam and the support platform. The main hooks are detachably arranged at both ends of the support beam.
[0004] Preferably, the crane frame includes two parallel and spaced main beams, two end beams are provided between the two main beams, and ends of the main beams are detachably fixed to the end beams.
[0005] Preferably, the auxiliary lifting device comprises an auxiliary hook, the top end of which is equipped with a movable pulley assembly, and the movable pulley assembly is connected to the third lifting mechanism through a steel wire rope.
[0006] Preferably, the first lifting mechanism, the second lifting mechanism and the third lifting mechanism all include a lifting drum, a lifting motor and a reducer. The lifting drum is rotatably assembled on the top of the lifting trolley through a bracket. The lifting motor and the reducer are both fixed on the lifting trolley. The power output shaft of the lifting motor is transmission-connected to the lifting drum through the reducer.
[0007] The above solution has the following advantages:
[0008] The annular bracket and the first lifting mechanism and the second lifting mechanism are arranged in a cross shape, which can enhance the stability of the main hoist, reduce the swing of the main hoist, and transport the ladle more smoothly, avoiding the spillage of high-temperature molten steel in the ladle; the arrangement of the rotating mechanism and the support platform, the rotating mechanism drives the support platform to rotate, which can not only realize the rotation of the main hook, but also be suitable for the lifting of ladles of larger tonnage; the arrangement of the auxiliary hook is convenient for cooperating with the main hook to flip and dump the molten steel in the ladle. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the structure of the utility model;
[0010] Figure 2 This is a schematic diagram of the structure of the main lifting device;
[0011] Figure 3 It is a structural schematic diagram of the ring bracket.
[0012] Figure numerals: 1. crane frame; 2. lifting trolley; 3. main hoist; 4. auxiliary hoist; 5. wire rope; 11. trolley traveling mechanism; 12. trolley traveling track; 13. main beam; 14. end beam; 21. first lifting mechanism; 22. second lifting mechanism; 23. third lifting mechanism; 31. annular bracket; 32. pulley bracket; 321. pulley block; 33. annular track; 34. support platform; 35. rotating mechanism; 351. roller bracket; 352. roller; 353. motor; 36. support beam; 37. fixed plate; 38. main hook; 41. auxiliary hook; 42. movable pulley assembly. DETAILED DESCRIPTION
[0013] like Figure 1-3As shown, a metallurgical crane with an automatic rotating hoist comprises a crane frame 1, the crane frame 1 comprises two parallel and spaced main beams 13, two end beams 14 are arranged between the two main beams 13, the ends of the main beams 13 are detachably fixed to the end beams 14, and trolley traveling mechanisms 11 are arranged at both ends of the crane frame 1, the trolley traveling mechanism 11 is assembled at both ends of the end beams 14, the trolley traveling mechanism 11 comprises trolley traveling wheels and a trolley traveling motor, the trolley traveling wheels are rotatably assembled on the end beams 14, the trolley traveling motor is fixed on the inner side of the end beams 14, and the power output shaft of the trolley traveling motor is transmission-connected to the trolley traveling wheels, the trolley traveling motor is started, the trolley traveling motor drives the trolley traveling wheels to rotate, and the trolley traveling wheels drive the crane frame 1 to move freely along the trolley traveling track 12. A lifting trolley 2 is mounted on the crane frame 1. The lifting trolley 2 is provided with a trolley travel mechanism. The trolley travel mechanism includes a trolley travel wheel mounted on the lifting trolley 2 and a trolley travel motor fixed on the lifting trolley 2. The trolley travel motor is connected to the trolley travel wheel by transmission. The trolley travel wheel is roller-pressed on the trolley travel track laid on the top of the main beam 13. When the trolley travel motor is started, the trolley travel motor drives the trolley travel wheel to rotate. The lifting trolley 2 is provided with a first lifting mechanism 21, a second lifting mechanism 22 and a third lifting mechanism 23. The second lifting mechanism 22 is arranged above the first lifting mechanism 21, and the first lifting mechanism 21 and the second lifting mechanism 22 are distributed in a cross shape. A main sling 3 and an auxiliary sling 4 are provided below the crane frame 1. The main sling 3 is connected to the first lifting mechanism 21 and the second lifting mechanism 22 through a steel wire rope 5, and the auxiliary sling 4 is connected to the third lifting mechanism 23 through a steel wire rope 5. The main hoist 3 includes an annular bracket 31, and four pulley brackets 32 are provided at the top of the annular bracket 31. The four pulley brackets 32 are evenly spaced around the annular bracket 31. The upper end of the pulley bracket 32 is equipped with a pulley block 321. Each pulley block 321 is correspondingly connected to the first lifting mechanism 21 and the second lifting mechanism 22 through a steel wire rope 5. The cross-section of the annular bracket 31 is L-shaped, and an annular track 33 is fixed on the annular bracket 31. A support platform 34 is provided above the annular track 33, and a plurality of rotating mechanisms 35 for driving the support platform 34 to rotate are provided at the bottom of the support platform 34. The rotating mechanism 35 includes an inverted U-shaped roller bracket 351, the top of which is fixed to the bottom of the support platform 34, and the lower end of the roller bracket 351 is rotatably equipped with a roller 352, which is press-fitted on the annular track 33. A motor 353 is fixed to the roller bracket 351, and the power output shaft of the motor 353 is transmission-connected to the roller 352. When the motor 353 is started, the motor 353 drives the roller 352 to rotate along the annular track 33, thereby driving the support platform 34 and the main hook 38 under the support platform 34 to rotate.A horizontal support beam 36 is provided below the annular bracket 31 , a plurality of fixing plates 37 are fixed between the support beam 36 and the support platform 34 , and main hooks 38 are detachably provided at both ends of the support beam 36 .
[0014] Preferably, the auxiliary lifting device 4 comprises an auxiliary hook 41 , a movable pulley assembly 42 is mounted on the top end of the auxiliary hook 41 , and the movable pulley assembly 42 is connected to the third lifting mechanism 23 via a steel wire rope 5 .
[0015] Preferably, the first lifting mechanism 21, the second lifting mechanism 22 and the third lifting mechanism 23 all include a lifting drum, a lifting motor and a reducer. The lifting drum is rotatably assembled on the top of the lifting trolley 2 through a bracket. The lifting motor and the reducer are both fixed on the lifting trolley 2. The power output shaft of the lifting motor is transmission-connected to the lifting drum through the reducer.
[0016] Usage process:
[0017] When the utility model is in use, firstly start the trolley travel mechanism 11, and drive the crane frame 1 to move along the trolley travel track 12 to the top of the molten steel ladle through the trolley travel mechanism 11, and then start the lifting trolley 2, and the lifting trolley 2 moves along the trolley travel track at the top of the main beam 13 to the top of the molten steel ladle, and then start the first lifting mechanism 21 and the second lifting mechanism 22 at the same time, and the first lifting mechanism 21 and the second lifting mechanism 22 release the wire rope 5, and the main hoist 3 falls to the molten steel ladle, and the angle of the main hook 38 is adjusted according to the demand, and the motor 353 on the rotating mechanism 35 is started, and the motor 353 drives the roller 352 to rotate, and the roller 352 rotates along the circular track 33, and the support platform 34 rotates under the action of the roller 352. The position of the main hook 38 is thereby adjusted. After the position of the main hook is adjusted, the main hook 38 is hung on the lifting lug of the ladle, and then the third lifting mechanism 23 is started. The auxiliary hook 41 follows the wire rope 5 and falls to the lower end of one side of the ladle. The auxiliary hook 41 is hung on the lifting lug at the lower end of the ladle. At the same time, the first lifting mechanism 21, the second lifting mechanism 22 and the third lifting mechanism 23 are started. After the ladle moves to a certain height, the first lifting mechanism 21, the second lifting mechanism 22 and the third lifting mechanism 23 are stopped. After the ladle is moved to an appropriate position by the trolley walking mechanism 11 and the lifting trolley 2, the third lifting mechanism 23 is started. The ladle rotates under the action of the third lifting mechanism 23, and the high-temperature molten steel in the ladle is poured into the mold.
[0018] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0019] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.
Claims
1. A metallurgical crane with an automatic rotating sling, comprising a crane frame, two ends of the crane frame are provided with a trolley travel mechanism, and a lifting trolley is mounted on the crane frame, characterized in that: The lifting trolley is provided with a first lifting mechanism, a second lifting mechanism and a third lifting mechanism, the second lifting mechanism is arranged above the first lifting mechanism, and the first lifting mechanism and the second lifting mechanism are distributed in a cross shape, a main hoist and an auxiliary hoist are arranged below the crane frame, the main hoist is connected to the first lifting mechanism and the second lifting mechanism through a steel wire rope, and the auxiliary hoist is connected to the third lifting mechanism through a steel wire rope; the main hoist comprises an annular bracket, four pulley brackets are arranged at the top of the annular bracket, the four pulley brackets are evenly spaced around the circumference of the annular bracket, a pulley block is mounted on the upper end of the pulley bracket, each pulley block is correspondingly connected to the first lifting mechanism and the second lifting mechanism through a steel wire rope, the cross section of the annular bracket is L-shaped, and an annular track is fixed on the annular bracket, a support platform is arranged above the annular bracket, a plurality of rotating mechanisms for driving the support platform to rotate are arranged at the bottom end of the support platform, a horizontally arranged support beam is arranged below the annular bracket, a plurality of fixing plates are fixed between the support beam and the support platform, and main hooks are detachably arranged at both ends of the support beam.
2. A metallurgical crane with an automatic rotating spreader according to claim 1, characterized in that: The rotating mechanism includes an inverted U-shaped roller bracket, the top of which is fixed to the bottom of the support platform, the lower end of which is rotatably equipped with a roller, the roller is press-fitted on the annular track, an electric motor is fixed on the roller bracket, and the power output shaft of the motor is transmission-connected to the roller.
3. A metallurgical crane with an automatic rotating spreader according to claim 1, characterized in that: The crane frame comprises two parallel and spaced main beams, two end beams are arranged between the two main beams, and the ends of the main beams are detachably fixed to the end beams.
4. A metallurgical crane with an automatic rotating spreader according to claim 3, characterized in that: The trolley traveling mechanism is assembled at both ends of the end beam.
5. A metallurgical crane with an automatic rotating spreader according to claim 4, characterized in that: The trolley travel mechanism includes a trolley travel wheel and a trolley travel motor. The trolley travel wheel is rotatably mounted on the end beam, the trolley travel motor is fixed on the inner side of the end beam, and the power output shaft of the trolley travel motor is transmission-connected to the trolley travel wheel.
6. A metallurgical crane with an automatic rotating spreader according to claim 1, characterized in that: The auxiliary lifting device comprises an auxiliary hook, the top end of which is equipped with a movable pulley assembly, and the movable pulley assembly is connected to the third lifting mechanism through a steel wire rope.
7. A metallurgical crane with an automatic rotating spreader according to any one of claims 1 to 6, characterized in that: The first lifting mechanism, the second lifting mechanism and the third lifting mechanism all include a lifting drum, a lifting motor and a reducer. The lifting drum is rotatably assembled on the top of the lifting trolley through a bracket. The lifting motor and the reducer are both fixed on the lifting trolley. The power output shaft of the lifting motor is transmission-connected to the lifting drum through the reducer.