Three-crane linkage crane
By designing three linked cranes, the laser ranging sensor and PLC controller are used to achieve synchronous movement of large and small trucks, solving the problem that traditional cranes are difficult to lift ultra-long steel, and achieving a smooth and safe lifting effect.
Patent Information
- Application Number
- CN202422071009.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-26
AI Technical Summary
Traditional cranes are difficult to effectively lift ultra-long steel, such as rails. Conventional cranes cannot meet their lifting needs, resulting in high difficulty in lifting and low safety.
A three-linked crane is designed, and a crane composed of three large trucks and trolleys are assembled on two parallel supporting beams. Each crane is equipped with a beam frame, and an ultra-long steel spreader is installed at the bottom of the beam frame. The laser ranging sensor and PLC controller are used to realize synchronous movement and distance monitoring of large and small vehicles, ensuring stable and safe lifting.
It realizes smooth lifting of ultra-long steel, improves lifting safety, meets the lifting needs of ultra-long steel, and ensures the stability and safety of the lifting process.
Smart Images
Figure CN222989607U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cranes, in particular to a three - unit linkage crane. Background Technique
[0002] A bridge crane is a lifting device that spans over workshops, warehouses, and yards for material handling. Its two ends are located on tall concrete columns or metal brackets, and it resembles a bridge in shape.
[0003] Most traditional cranes operate independently. Due to the particularity of some materials, conventional cranes are not applicable. For the handling of extra - long steel materials, such as railway tracks, since their length reaches 100 - 120m, the handling difficulty is relatively large, and conventional cranes cannot meet the requirements. Therefore, a three - unit linkage crane is designed to meet the handling requirements of extra - long steel materials, with stable operation and high safety. Content of the Utility Model
[0004] In view of the above - mentioned defects or deficiencies in the prior art, it is desired to provide a three - unit linkage crane that can meet the handling requirements of extra - long steel materials, with stable operation and high safety.
[0005] A three - unit linkage crane provided by the utility model includes two parallel support beams, and the support beams are arranged along the direction parallel to the x - axis; three trolleys are arranged on the two support beams along the x - axis direction, and a first laser distance sensor is arranged between adjacent trolleys; below the trolleys, there are beam frames arranged parallel to the x - axis direction; along the length direction of the bottom of the beam frame, extra - long steel material lifting tools are evenly distributed.
[0006] On each trolley, there is a small car, and a second laser distance sensor is arranged on the small car along the y - axis direction; two electric hoists are fixedly arranged on the small car along the x - axis direction, a moving pulley group is fixedly arranged on the top of the beam frame corresponding to the electric hoist, and the steel wire rope on the electric hoist is connected to the corresponding moving pulley group; the trolley, the first laser distance sensor, the small car, the second laser distance sensor, and the electric hoist are all electrically connected to a PLC controller.
[0007] Further, the trolley includes two parallel main beams, the main beams are arranged along the direction parallel to the y - axis, at both ends of the bottom of the two main beams, first end beams are respectively fixedly arranged, on the top of the support beam, a first track is arranged along the x - axis direction, and at both ends of the first end beam, first electric walking wheels are respectively arranged corresponding to the first track.
[0008] Furthermore, the ultra-long steel sling includes a suspension frame. Both sides of the top of the suspension frame are fixedly connected to the beam frame through iron chains. An ultra-strong electromagnet is fixedly installed inside the suspension frame. The ultra-strong electromagnet is electrically connected to a PLC controller. Limit plates are symmetrically arranged on both sides of the bottom of the suspension frame and located on both sides of the ultra-long steel. The thickness of the bottom end of the limit plate gradually decreases from top to bottom to form a guiding head.
[0009] Furthermore, the trolley includes two parallel crossbeams. The crossbeams are arranged along the direction parallel to the x-axis. Second end beams are fixedly installed at both ends of the bottoms of the two crossbeams. A second track is arranged on the top of the main beam along the y-axis direction. Second electric traveling wheels are respectively arranged at both ends of the second end beam corresponding to the second track.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0011] The three-linkage crane of the present utility model assembles three cranes onto two support beams. Each crane composed of a trolley and a carriage is equipped with a beam frame, and an ultra-long steel sling is arranged at the bottom of the beam frame. When hoisting, the three beam frames are evenly distributed above the ultra-long steel, and the two ends and the middle of the ultra-long steel are simultaneously lifted by the ultra-long steel sling. The positions of the trolleys are monitored by the second laser distance sensor to ensure the synchronous movement of the trolleys; the distance between adjacent carriages is monitored by the first laser distance sensor to avoid collisions between adjacent carriages. The three-linkage crane of the present application meets the hoisting requirements of ultra-long steel, runs smoothly, and has high safety.
[0012] It should be understood that the content described in the utility model content section is not intended to limit the key or important features of the embodiments of the present utility model, nor to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes, and advantages of the present utility model will become more obvious:
[0014] Figure 1 is the front view structural schematic diagram of the three-linkage crane;
[0015] Figure 2 is the test structural schematic diagram of the three-linkage crane;
[0016] Figure 3 is the top view structural schematic diagram of the three-linkage crane;
[0017] Figure 4 is the structural schematic diagram of the ultra-long steel sling.
[0018] Reference numerals in the figures: 1, support beam; 2, trolley; 3, beam frame; 4, ultra-long steel sling; 5, carriage; 6, electric hoist; 7, movable pulley block; 8, ultra-long steel.
[0019] 11, first track;
[0020] 21, main beam; 22, first end beam; 23, first electric driving wheel; 24, second track;
[0021] 41, hanging bracket; 42, iron chain; 43, super strong electromagnet; 44, limit plate;
[0022] 51, cross beam; 52, second end beam; 53, second electric driving wheel. Specific embodiments
[0023] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than limiting the utility model. Additionally, it should be noted that for the sake of description, only the parts related to the utility model are shown in the accompanying drawings.
[0024] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.
[0025] Please refer to Figures 1 to 4 , an embodiment of the present utility model provides a three - unit linkage crane, including two parallel - arranged support beams 1, the support beams 1 are arranged along the direction parallel to the x - axis; three trolleys 2 are arranged on the two support beams along the x - axis direction, and first laser range sensors are arranged between adjacent trolleys 2; below the trolleys 2, beam frames 3 parallel to the x - axis direction are respectively arranged; along the length direction of the bottom of the beam frames 3, ultra - long steel slings 4 are evenly distributed;
[0026] On each trolley 2, a carriage 5 is arranged, and a second laser range sensor along the y - axis direction is arranged on the carriage 5; two electric hoists 6 are fixedly arranged on the carriage 5 along the x - axis direction, and movable pulley blocks 7 are fixedly arranged on the top of the beam frames 3 corresponding to the electric hoists 6, and the steel wire ropes on the electric hoists 6 are connected to the corresponding movable pulley blocks 7; the trolleys 2, the first laser range sensors, the carriages 5, the second laser range sensors and the electric hoists 6 are all electrically connected to a PLC controller.
[0027] In this embodiment, when lifting the extra-long steel 8, first, according to the length of the extra-long steel 8, the PLC controller controls the movement of three trolleys 2 so that they are evenly distributed above the extra-long steel 8. Then, the electric hoist 6 on the trolley 5 releases the steel wire rope, and each beam frame 3 moves downward. Then, the extra-long steel sling 4 is used to fix the extra-long steel 8. At this time, the electric hoist 6 lifts the extra-long steel 8, and the three trolleys 2 move synchronously to complete the lifting of the extra-long steel 8.
[0028] When the crane is installed in the workshop, the support beam 1 is installed on the walls on both sides of the room. The distance between it and the wall is monitored by the second laser distance sensor, and then the position of the trolley is monitored to ensure the synchronous movement of the three trolleys 5. When the crane is installed outdoors, the support beam 1 is installed on the metal bracket, and a reference plate is set on the metal bracket. The distance between it and the reference plate is monitored by the second laser distance sensor, and then the position of the trolley 5 is monitored. The distance between adjacent trolleys 2 is monitored by the first laser distance sensor to prevent adjacent trolleys 2 from colliding during movement. The three-linkage crane of the present application meets the lifting requirements of the extra-long steel 8, operates smoothly, and has high safety.
[0029] In a preferred embodiment, as Figure 1 and Figure 4 shown, the trolley 2 includes two parallel main beams 21. The main beams 21 are arranged in the direction parallel to the y-axis. At both ends of the bottoms of the two main beams 21, first end beams 22 are fixedly arranged respectively. The top of the support beam 1 is provided with a first track 11 in the x-axis direction. At both ends of the first end beam 23, first electric walking wheels 23 are respectively arranged corresponding to the first track 11. The trolley 2 is composed of the main beam 21 and the first end beam 22, and has high structural strength. The trolley 2 is driven to move along the first track 11 by the first electric walking wheel 23. According to the length of the extra-long steel 8, the position of the trolley 2 is adjusted to lift both ends and the middle of the extra-long steel 8 simultaneously, ensuring the smoothness of the lifting.
[0030] In a preferred embodiment, as Figure 1 and Figure 2 shown, the extra-long steel sling 4 includes a suspension frame 41. Both sides of the top of the suspension frame 41 are fixedly connected to the beam frame 3 through iron chains 42. A super-strong electromagnet 43 is fixedly arranged inside the suspension frame 41. The super-strong electromagnet 43 is electrically connected to the PLC controller. At both sides of the bottom of the suspension frame 41, limiting plates 44 are symmetrically arranged at both sides of the extra-long steel 8. The thickness of the bottom end of the limiting plate 44 gradually decreases from top to bottom to form a guiding head.
[0031] In this embodiment, after the ultra-long steel sling 4 drops with the beam frame 3 to a position close to the ultra-long steel 8, the limit plates 44 block both sides of the ultra-long steel 8 to position the ultra-long steel 8 so that it is aligned with the super-strong electromagnet 43. After the PLC controller turns on the super-strong electromagnet 43, the ultra-long steel 8 is connected and fixed. A plurality of ultra-long steel slings 4 under each beam frame 3 fix one end of the ultra-long steel 8, ensuring firm fixation and the safety of the hoisting of the ultra-long steel 8.
[0032] In a preferred embodiment, as Figure 1 and Figure 4 shown, the trolley 5 includes two parallel cross beams 51 arranged along the direction parallel to the x-axis. Second end beams 52 are fixedly arranged at both ends of the bottoms of the two cross beams 51. A second track 24 is arranged along the y-axis direction at the top of the main beam 21. Second electric running wheels 53 are respectively arranged at both ends of the second end beams 52 corresponding to the second track 24. The trolley 5 is composed of the cross beam 51 and the second end beam 52, with high structural strength. The trolley 5 is driven to move along the second track 24 by the second electric running wheels 53. Three trolleys 5 move synchronously, realizing the hoisting of the ultra-long steel 8 along the y-axis direction and ensuring the smoothness of the hoisting.
[0033] In the description of this specification, terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.
[0034] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0035] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.
Claims
1. A three-link crane, characterized in that: The invention comprises two support beams (1) arranged in parallel, wherein the support beams (1) are arranged in a direction parallel to the x-axis; three trolleys (2) are arranged on the two support beams (1) in the x-axis direction, and a first laser distance measuring sensor is arranged between adjacent trolleys (2); beam frames (3) parallel to the x-axis direction are arranged below the trolleys (2); and extra-long steel hangers (4) are evenly distributed at the bottom of the beam frames (3) along their length direction; The trolley (2) is provided with a trolley (5), and the trolley (5) is provided with a second laser distance measuring sensor along the y-axis direction; two electric hoists (6) are fixedly provided on the trolley (5) along the x-axis direction, and a movable pulley block (7) is fixedly provided on the top of the beam frame (3) corresponding to the electric hoist (6), and the steel wire rope on the electric hoist (6) is connected to the corresponding movable pulley block (7); the trolley (2), the first laser distance measuring sensor, the trolley (5), the second laser distance measuring sensor and the electric hoist (6) are all electrically connected to a PLC controller.
2. The three-link crane according to claim 1, characterized in that: The trolley (2) comprises two parallel main beams (21), the main beams (21) being arranged in a direction parallel to the y-axis, first end beams (22) being fixedly arranged at both ends of the bottom of the two main beams (21), a first track (11) being arranged at the top of the support beam (1) in the x-axis direction, and first electric running wheels (23) being arranged at both ends of the first end beam (22) corresponding to the first track (11).
3. The three-link crane according to claim 1, characterized in that: The extra-long steel hanger (4) comprises a hanger (41), the two sides of the top of the hanger (41) are fixedly connected to the beam frame (3) by iron chains (42), a super-strong electromagnet (43) is fixedly arranged inside the hanger (41), and the super-strong electromagnet (43) is electrically connected to the PLC controller. The bottom of the hanger (41) is symmetrically provided with limit plates (44) on both sides of the extra-long steel (8), and the thickness of the bottom end of the limit plate (44) gradually decreases from top to bottom to form a guide head.
4. The three-link crane according to claim 2, characterized in that: The trolley (5) comprises two parallel cross beams (51), the cross beams (51) being arranged in a direction parallel to the x-axis, second end beams (52) being fixedly arranged at both ends of the bottom of the two cross beams (51), a second track (24) being arranged at the top of the main beam (21) in the y-axis direction, and second electric running wheels (53) being arranged at both ends of the second end beam (52) corresponding to the second track (24).