Multifunctional multi-lifting-point gantry crane

Abstract

According to the multifunctional multi-hoisting-point gantry crane, through the design of four hoisting mechanisms symmetrically arranged on the left side and the right side and a movable crown block, flexible configuration and dynamic adjustment of hoisting points are achieved, the requirements of complex hoisting tasks are met, and the operation efficiency and precision are remarkably improved; the second guide pulley is detachably connected with the rectangular frame through the first locking device, the second guide pulley is matched with a second locking device of the movable crown block, the second guide pulley can be quickly locked to the movable crown block after unlocking, seamless switching of the position of the second guide pulley is achieved, the equipment function is expanded, and manual intervention is reduced. The second guide pulley is fixed while the first locking device is unlocked by the second locking device, so that the operation process is simplified, the misoperation risk is reduced, and the safety and stability in the hoisting process are ensured; the linkage design of the movable crown block and the second guide pulley avoids the redundant space occupation caused by a fixed structure of a traditional gantry crane, and is especially suitable for hoisting operation in a narrow or complex site.

Description

Technical Field

[0001] The present invention relates to the technical field of gantry cranes, and particularly relates to a multi-functional and multi-hoisting-point gantry crane. Background Art

[0002] As a heavy lifting equipment, gantry cranes are widely used in scenarios such as ports, construction sites, workshops, etc. Traditional gantry cranes usually adopt a fixed hoisting point design, and their hoisting positions and directions are limited by the structural layout, making it difficult to meet the diverse hoisting requirements under complex working conditions. Especially in scenarios where multi-hoisting-point collaborative operations or dynamic adjustment of hoisting positions are required, existing gantry cranes often need to rely on the cooperation of multiple devices or frequent adjustment of structures, resulting in low operation efficiency, complex operation, and high costs. In addition, most traditional guiding pulleys are of fixed design and cannot be flexibly changed in position or disassembled and reorganized according to actual needs, restricting the functional expandability of the equipment.

[0003] Therefore, in view of the above problems, there is an urgent need for a gantry crane equipment with the ability to dynamically adjust multiple hoisting points, flexible structure, and strong adaptability to meet the hoisting requirements of high efficiency, precision, and multi-scenarios in modern engineering. Summary of the Invention

[0004] The present invention aims to solve at least one of the problems existing in the related prior art to some extent. For this purpose, the present invention provides a multi-functional and multi-hoisting-point gantry crane.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A multi-functional and multi-hoisting-point gantry crane includes a rectangular frame and a support frame for supporting the rectangular frame. There are two first winch mechanisms spaced apart front and back on the left side of the upper end of the rectangular frame, and two second winch mechanisms spaced apart front and back on the right side of the upper end of the rectangular frame. A first guiding pulley for cooperating with the first steel wire rope of the first winch mechanism is arranged on the right side of the lower end of the rectangular frame, and a second guiding pulley for cooperating with the second steel wire rope of the second winch mechanism is arranged on the left side of the lower end of the rectangular frame. A moving trolley capable of moving in the left-right direction is further arranged on the rectangular frame. The first guiding pulley is fixedly connected to the rectangular frame, and the second guiding pulley is detachably connected to the rectangular frame through a first locking device. A second locking device is arranged on the moving trolley. The second locking device can unlock the first locking device, and at the same time of unlocking, lock the second guiding pulley through the second locking device, so that the second guiding pulley is fixed on the moving trolley.

[0007] In some embodiments, the second guiding pulley includes a pulley frame body and a pulley at the lower end of the pulley frame body. An installation groove is arranged on the left inner wall of the rectangular frame, and the pulley frame body is slidably installed left and right in the installation groove.

[0008] In some embodiments, a first support hanging plate is provided at the upper end of the pulley frame body, and a support notch is provided at the upper end of the installation groove, and the first support hanging plate is supported and hung in the support notch.

[0009] In some embodiments, the first locking device includes a first sliding groove provided on one side of the installation groove, a first sliding seat slides back and forth in the first sliding groove, a first locking plate is provided on one side of the first sliding seat, a locking through hole is provided on the pulley frame body, and a spring that can keep the first locking plate inserted into the locking through hole is connected between the first sliding seat and the first sliding groove. A guiding inclined surface is provided at the outer corner of the first locking plate.

[0010] In some embodiments, the second locking device includes a vertical plate provided on the left side of the moving overhead crane. A second sliding groove is provided on one side of the installation groove opposite to the first sliding groove. A third sliding groove is provided on the vertical plate. A second sliding seat slides back and forth in the third sliding groove. A cylinder for driving the second sliding seat to slide back and forth is provided on the inner side of the vertical plate. A second locking plate is provided at the outer end of the second sliding seat. The second locking plate can follow the movement of the moving overhead crane and be inserted into the second sliding groove, and can drive the second locking plate to be inserted into the locking through hole and push out the first locking plate through the cylinder.

[0011] In some embodiments, second support hanging plates are provided on both sides of the pulley frame body, and a support bracket plate is provided on the outer side of the vertical plate, and the support bracket plate can support the second support hanging plates.

[0012] In some embodiments, a first guiding cylinder for guiding the second steel wire rope is provided on the rectangular frame and at the rope outlet end of the second hoisting mechanism. A second guiding cylinder for guiding the second steel wire rope is provided at the lower end of the moving overhead crane. Among them, the first guiding cylinder and the second guiding cylinder have the same structure, and both include a cylinder body through which the second steel wire rope passes. Chamfers are provided on the inner walls at both ends of the cylinder body, and balls are evenly distributed along the circumference on the chamfers.

[0013] In some embodiments, the moving overhead crane includes a moving vehicle body and a rotating seat rotatably provided at the lower end of the moving vehicle body, and the second locking device and the second guiding cylinder are provided on the rotating seat.

[0014] In some embodiments, a rotating shaft is provided at the upper end of the rotating seat. The upper end of the rotating shaft passes through the moving vehicle body and a rotating disc is provided. A support seat is provided at the upper end of the moving vehicle body. The lower end of the rotating disc is rotatably supported on the support seat. A first gear is provided on the rotating shaft, a rotating motor is provided on the moving vehicle body, and a second gear meshing with the first gear is provided on the output shaft of the rotating motor.

[0015] In some embodiments, columns are spaced left and right on the rotating disk, a pulling rope is arranged on the columns, and both the left and right sides of the rotating base extend out of the movable overhead crane, and the other end of the pulling rope is fixedly connected to the rotating base.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Through the design of four hoisting mechanisms symmetrically arranged on the left and right sides and the movable overhead crane, flexible configuration and dynamic adjustment of the lifting points are realized, meeting the requirements of complex hoisting tasks, and significantly improving the operation efficiency and accuracy;

[0018] 2. The second guiding pulley is detachably connected to the rectangular frame through the first locking device. Cooperating with the second locking device of the movable overhead crane, the second guiding pulley can be quickly locked to the movable overhead crane after unlocking, realizing seamless switching of the position of the second guiding pulley, expanding the functions of the equipment and reducing manual intervention;

[0019] 3. The second locking device completes the fixation of the second guiding pulley while unlocking the first locking device, simplifies the operation process, reduces the risk of misoperation, and ensures the safety and stability of the hoisting process;

[0020] 4. The linkage design of the movable overhead crane and the second guiding pulley avoids the redundant space occupation caused by the fixed structure of the traditional gantry crane, and is especially suitable for hoisting operations in narrow or complex sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 One of the three-dimensional structure diagrams of the present invention when the second guiding pulley is fixed to the rectangular frame;

[0022] Figure 2 Another three-dimensional structure diagram of the present invention when the second guiding pulley is fixed to the rectangular frame;

[0023] Figure 3 The top view structure diagram of the present invention when the second guiding pulley is fixed to the rectangular frame;

[0024] Figure 4 For the present invention Figure 3 The sectional view taken along the line A-A;

[0025] Figure 5 The exploded view of the second guiding pulley and the rectangular frame of the present invention;

[0026] Figure 6 The schematic diagram of the first locking device locking the second guiding pulley of the present invention;

[0027] Figure 7Schematic diagram when the second locking device of the present invention locks the second guiding pulley;

[0028] Figure 8 Schematic diagram when the second steel wire rope of the present invention is threaded through the cylinder body;

[0029] Figure 9 Schematic diagram when the mobile overhead crane of the present invention moves to the leftmost side of the rectangular frame;

[0030] Figure 10 For the present invention Figure 9 Enlarged schematic diagram at position A;

[0031] Figure 11 Stereoscopic structure schematic diagram when the second guiding pulley of the present invention is fixed on the mobile overhead crane;

[0032] Figure 12 For the present invention Figure 11 Enlarged schematic diagram at position B;

[0033] Figure 13 Stereoscopic structure schematic diagram when the rotating seat of the present invention rotates. Detailed implementation manners

[0034] The following specific implementation content provides various different embodiments or examples for implementing the present invention. Of course, these are only embodiments or examples and are not intended to be restrictive. Additionally, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the present invention and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0035] As Figures 1 - 13 shown, a gantry crane with multiple functions and multiple lifting points includes a rectangular frame 1 and a support frame 2 for supporting the rectangular frame 1. There are two first hoisting mechanisms 3 spaced apart front and rear on the left side of the upper end of the rectangular frame 1, and two second hoisting mechanisms 4 spaced apart front and rear on the right side of the upper end of the rectangular frame 1. A first guiding pulley 5 for cooperating with the first steel wire rope 10 of the first hoisting mechanism 3 is arranged on the right side of the lower end of the rectangular frame 1, and a second guiding pulley 6 for cooperating with the second steel wire rope 20 of the second hoisting mechanism 4 is arranged on the left side of the lower end of the rectangular frame 1. A mobile overhead crane 7 capable of moving in the left - right direction is further arranged on the rectangular frame 1. The first guiding pulley 5 is fixedly connected to the rectangular frame 1, and the second guiding pulley 6 is detachably connected to the rectangular frame 1 through a first locking device. A second locking device is arranged on the mobile overhead crane 7. The second locking device can unlock the first locking device, and at the same time of unlocking, lock the second guiding pulley 6 through the second locking device, so that the second guiding pulley 6 is fixed on the mobile overhead crane 7.

[0036] In the above structure, it is designed with four hoisting mechanisms symmetrically arranged on the left and right sides and a movable overhead crane 7, realizing flexible configuration and dynamic adjustment of the lifting points, adapting to the requirements of complex hoisting tasks, and significantly improving the operation efficiency and accuracy.

[0037] The second guiding pulley 6 is detachably connected to the rectangular frame 1 through the first locking device. Cooperating with the second locking device of the movable overhead crane 7, the second guiding pulley 6 can be quickly locked to the movable overhead crane 7 after unlocking, realizing seamless switching of the position of the second guiding pulley 6, expanding the equipment function and reducing manual intervention.

[0038] At the same time, the second locking device fixes the second guiding pulley 6 while unlocking the first locking device, simplifying the operation process, reducing the risk of misoperation, and ensuring the safety and stability of the hoisting process.

[0039] The linkage design of the movable overhead crane 7 and the second guiding pulley 6 avoids the redundant space occupation caused by the fixed structure of the traditional gantry crane, and is especially suitable for hoisting operations in narrow or complex sites.

[0040] See Figure 5 As shown, the second guiding pulley 6 includes a pulley frame body 21 and a pulley 22 at the lower end of the pulley frame body 21. An installation groove 23 is provided on the left inner wall of the rectangular frame 1, and the pulley frame body 21 is slidably installed left and right in the installation groove 23.

[0041] Furthermore, a first support hanging plate 24 is provided at the upper end of the pulley frame body 21, and a support notch 25 is provided at the upper end of the installation groove 23. The first support hanging plate 24 is supported and hung in the support notch 25, thereby improving the stability of the second guiding pulley 6 after being installed on the rectangular frame 1.

[0042] See Figures 5 - 7 As shown, the first locking device includes a first sliding groove 31 provided on one side of the installation groove 23. A first sliding seat 32 slides back and forth in the first sliding groove 31. A first locking plate 33 is provided on one side of the first sliding seat 32. A locking through hole 34 is provided on the pulley frame body 21. A spring 35 is connected between the first sliding seat 32 and the first sliding groove 31 to keep the first locking plate 33 inserted into the locking through hole 34. A guiding inclined surface 36 is provided at the outer corner of the first locking plate 33, and the inner corner is a straight surface structure, restricting the outward movement of the pulley frame body 21 through the straight surface structure.

[0043] The specific working principle of the first locking device is as follows: Under the elastic force of the spring 35, the first sliding seat 32 and the first locking plate 33 are kept moving to one side, and the second locking plate 33 is inserted into the locking through hole 34 of the pulley frame body 21, thereby realizing the locking of the pulley frame body 21.

[0044] See Figures 5 - 7 、 Figure 10 、 Figure 12 As shown, the second locking device includes a vertical plate 41 arranged on the left side of the mobile overhead crane 7. A second chute 42 is arranged on one side of the mounting groove 23 relative to the first chute 31. A third chute 43 is arranged on the vertical plate 41. A second sliding seat 44 slides back and forth in the third chute 43. An air cylinder 45 for driving the second sliding seat 44 to slide back and forth is arranged inside the vertical plate 41. A second locking plate 46 is arranged at the outer end of the second sliding seat 44. The second locking plate 46 can be inserted into the second chute 42 following the movement of the mobile overhead crane 7, and the second locking plate 46 can be driven by the air cylinder 45 to be inserted into the locking through hole 34 and push out the first locking plate 33.

[0045] The specific working principle of the second locking device is as follows: By moving the mobile overhead crane 7 to the left, the second locking plate 46 is inserted into the second chute 42. Then, the air cylinder 45 works to drive the second sliding seat 44 and the second locking plate 46 to move, and the first locking plate 33 is pushed by the second locking plate 46. Thus, when the second locking plate 46 is inserted into the locking through hole 34, the first locking plate 33 is pushed out, realizing the locking of the second locking device and unlocking the first locking device at the same time. Thereby, the second guiding pulley 6 is connected to the mobile overhead crane 7 and can move following the mobile overhead crane 7.

[0046] In addition, when the second guiding pulley 6 needs to be connected to the rectangular frame 1, the mobile overhead crane 7 drives the second guiding pulley 6 to move to the left, so that the pulley frame body 21 is inserted into the mounting groove 23. During the insertion process, one side of the pulley frame body 21 abuts against the guiding inclined surface 36 of the first locking plate 33, so that the first locking plate 33 retracts into the first chute 31, and the pulley frame body 21 can be smoothly inserted into the mounting groove 23. Then, the air cylinder 45 drives the second locking plate 46 to retract, and the first locking plate 33 is inserted into the locking through hole 34 under the action of the spring 35, thereby realizing the locking of the first locking device to the second guiding pulley 6 and unlocking the second locking device for the second guiding pulley 6.

[0047] Furthermore, second support hanging plates 51 are arranged on both sides of the pulley frame body 21, and a support bracket plate 52 is arranged outside the vertical plate 41. The support bracket plate 52 can support the second support hanging plates 51. When the second guiding pulley 6 is connected to the mobile overhead crane 7, the second support hanging plates 51 can be supported by the support bracket plate 52, improving the stability of the second guiding pulley 6.

[0048] See Figures 8 - 11As shown, a first guiding cylinder 61 for guiding the second steel wire rope 20 is provided on the rectangular frame 1 and at the wire rope outlet end of the second hoisting mechanism 4. A second guiding cylinder 62 for guiding the second steel wire rope 20 is provided at the lower end of the mobile overhead crane 7. Among them, the first guiding cylinder 61 and the second guiding cylinder 62 have the same structure, and both include a cylinder body 63 through which the second steel wire rope 20 passes. Chamfers 64 are provided on the inner walls at both ends of the cylinder body 63, and balls 65 are evenly distributed along the circumference on the chamfers 64. Thus, through the settings of the first guiding cylinder 61 and the second guiding cylinder 62, the stability of the second steel wire rope 20 during movement can be improved.

[0049] See Figure 4 、 Figure 13 As shown, the mobile overhead crane 7 includes a mobile vehicle body 71 and a rotating seat 72 rotatably provided at the lower end of the mobile vehicle body 71. The second locking device and the second guiding cylinder 62 are provided on the rotating seat 72. Thus, through the rotational setting of the rotating seat 72, that is, the second guiding pulley 6 can be driven to rotate, and then the lifted object can be driven to rotate, realizing flexible configuration and dynamic adjustment of the lifting points, meeting the requirements of complex hoisting tasks, and significantly improving the operation efficiency.

[0050] Further, a rotating shaft 81 is provided at the upper end of the rotating seat 72. The upper end of the rotating shaft 81 passes through the mobile vehicle body 71 and a rotating disc 82 is provided. A supporting seat 83 is provided at the upper end of the mobile vehicle body 71. The lower end of the rotating disc 82 is rotatably supported on the supporting seat 83. A first gear 84 is provided on the rotating shaft 81, and a rotating motor 85 is provided on the mobile vehicle body 71. A second gear 86 meshing with the first gear 84 is provided on the output shaft of the rotating motor 85. During operation, the rotating motor 85 drives the second gear 86 to rotate, and the second gear 86 meshes with the first gear 84, thereby driving the rotating shaft 82 and the rotating seat 72 to rotate. In addition, a rotating disc 82 is provided at the upper end of the rotating shaft 81, and the rotating disc 82 rotates and abuts against the supporting seat 83, thereby being able to support the rotating disc 83 and the rotating seat 72 and improving the stability of the rotating seat 72 during rotation.

[0051] Further, columns 91 are spaced left and right on the rotating disc 82. A pulling rope 92 is provided on the columns 91. Both the left and right sides of the rotating seat 72 extend out of the mobile overhead crane 7, and the other end of the pulling rope 92 is fixedly connected to the rotating seat 72. The rotating seat 72 is pulled by the pulling rope 92 to improve the safety and stability of the rotating seat 72.

[0052] Of course, the rotating seat 72 cannot rotate 360°, and its rotation range can only be 90° counterclockwise.

[0053] The basic principles, main features and advantages of the present invention have been shown and described above in conjunction with the accompanying drawings. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A gantry crane with multiple functions and multiple lifting points, comprising a rectangular frame (1) and a support frame (2) for supporting the rectangular frame (1), characterized in that: On the left side of the upper end of the rectangular frame (1), there are two first hoisting mechanisms (3) spaced apart front and back. On the right side of the upper end of the rectangular frame (1), there are two second hoisting mechanisms (4) spaced apart front and back. On the right side of the lower end of the rectangular frame (1), there is a first guiding pulley (5) that cooperates with the first steel wire rope (10) of the first hoisting mechanism (3). On the left side of the lower end of the rectangular frame (1), there is a second guiding pulley (6) that cooperates with the second steel wire rope (20) of the second hoisting mechanism (4). On the rectangular frame (1), there is also a moving overhead crane (7) that can move in the left-right direction. The first guiding pulley (5) is fixedly connected to the rectangular frame (1). The second guiding pulley (6) is detachably connected to the rectangular frame (1) through a first locking device. On the moving overhead crane (7), there is a second locking device. The second locking device can unlock the first locking device, and at the same time of unlocking, lock the second guiding pulley (6) through the second locking device, so that the second guiding pulley (6) is fixed on the moving overhead crane (7).

2. The gantry crane with multiple functions and multiple lifting points according to claim 1, characterized in that: The second guiding pulley (6) includes a pulley frame body (21) and a pulley (22) at the lower end of the pulley frame body (21). On the left inner wall of the rectangular frame (1), there is an installation groove (23). The pulley frame body (21) is slidably installed left and right in the installation groove (23).

3. The gantry crane with multiple functions and multiple lifting points according to claim 2, characterized in that: At the upper end of the pulley frame body (21), there is a first support hanging plate (24). At the upper end of the installation groove (23), there is a support notch (25). The first support hanging plate (24) is supported and hung in the support notch (25).

4. The gantry crane with multiple functions and multiple lifting points according to claim 2, characterized in that: The first locking device includes a first chute (31) provided on one side of the installation groove (23). A first sliding seat (32) slides back and forth in the first chute (31). On one side of the first sliding seat (32), there is a first locking plate (33). On the pulley frame body (21), there is a locking through hole (34). A spring (35) that can keep the first locking plate (33) inserted into the locking through hole (34) is connected between the first sliding seat (32) and the first chute (31). The outer corner of the first locking plate (33) is provided with a guiding inclined surface (36).

5. A gantry crane with multiple functions and multiple lifting points according to claim 4, characterized in that: The second locking device includes a vertical plate (41) arranged on the left side of the mobile overhead crane (7). A second sliding groove (42) is arranged on one side of the installation groove (23) opposite to the first sliding groove (31). A third sliding groove (43) is arranged on the vertical plate (41). A second sliding seat (44) slides back and forth in the third sliding groove (43). A cylinder (45) for driving the second sliding seat (44) to slide back and forth is arranged inside the vertical plate (41). A second locking plate (46) is arranged at the outer end of the second sliding seat (44). The second locking plate (46) can be inserted into the second sliding groove (42) following the movement of the mobile overhead crane (7), and the second locking plate (46) can be driven by the cylinder (45) to be inserted into the locking through hole (34) and push out the first locking plate (33).

6. The gantry crane with multiple functions and multiple lifting points according to claim 5, characterized in that: Second support hanging plates (51) are arranged on both sides of the pulley frame body (21). A support bracket plate (52) is arranged outside the vertical plate (41). The support bracket plate (52) can support the second support hanging plates (51).

7. A gantry crane with multiple functions and multiple lifting points according to claim 5, characterized in that: A first guiding cylinder (61) for guiding the second steel wire rope (20) is arranged on the rectangular frame (1) and at the rope outlet end of the second hoisting mechanism (4). A second guiding cylinder (62) for guiding the second steel wire rope (20) is arranged at the lower end of the mobile overhead crane (7). Among them, the first guiding cylinder (61) and the second guiding cylinder (62) have the same structure, and both include a cylinder body (63) through which the second steel wire rope (20) passes. Chamfers (64) are provided on the inner walls at both ends of the cylinder body (63). Ball bearings (65) are evenly distributed along the circumference on the chamfers (64).

8. A gantry crane with multiple functions and multiple lifting points according to claim 7, characterized in that: The mobile overhead crane (7) includes a mobile vehicle body (71) and a rotating seat (72) rotatably arranged at the lower end of the mobile vehicle body (71). The second locking device and the second guiding cylinder (62) are arranged on the rotating seat (72).

9. The gantry crane with multiple functions and multiple lifting points according to claim 8, characterized in that: A rotating shaft (81) is arranged at the upper end of the rotating seat (72). The upper end of the rotating shaft (81) passes through the mobile vehicle body (71) and a rotating disc (82) is arranged. A support seat (83) is arranged at the upper end of the mobile vehicle body (71). The lower end of the rotating disc (82) is rotatably supported on the support seat (83). A first gear (84) is arranged on the rotating shaft (81). A rotating motor (85) is arranged on the mobile vehicle body (71). A second gear (86) meshing with the first gear (84) is arranged on the output shaft of the rotating motor (85).

10. The gantry crane with multiple functions and multiple lifting points according to claim 9, characterized in that: Columns (91) are spaced left and right on the rotating disc (82). A pulling rope (92) is arranged on the columns (91). Both the left and right sides of the rotating seat (72) extend out of the mobile overhead crane (7), and the other end of the pulling rope (92) is fixedly connected to the rotating seat (72).

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