Buffering anti-collision structure of gantry crane
By designing a buffer and anti-collision structure, including buffering, support and recovery mechanisms, the problem of unstable energy storage and release during the impact of the gantry crane was solved, and the stability and automatic recovery function during the impact process were realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东冠华重工机械有限公司
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-19
AI Technical Summary
Existing anti-collision structures for gantry cranes are ineffective in energy storage and release, easily leading to gantry crane rebound or damage, and failing to effectively control impact energy.
A buffer and anti-collision structure was designed, including a fixed seat, a sliding seat, a buffer mechanism, a support mechanism, and a recovery mechanism. The buffer mechanism stores the impact energy, the support mechanism controls the acceleration for stability, and the recovery mechanism automatically restores the buffer mechanism to ensure that the gantry crane remains stable during the impact.
It effectively stores impact energy, prevents the gantry crane from rebounding, maintains stability during the impact process, and automatically restores the buffer mechanism through the recovery mechanism to prevent secondary damage.
Smart Images
Figure CN224258114U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gantry crane design technology, specifically a buffer and anti-collision structure for gantry cranes. Background Technology
[0002] Since gantry cranes generally operate outdoors, they are prone to sliding on the tracks during non-working periods, especially in severe weather such as strong winds and heavy rain, which can easily lead to safety accidents and damage to personnel and property. When moving workpieces to positions close to both ends of the tracks during operation, it is also necessary to prevent operator errors from causing the gantry crane to move and collide with the edge of the tracks.
[0003] An investigation revealed that Chinese utility model patent CN219950285U discloses a gantry crane anti-collision device, including a column, a buffer fixedly installed inside the column, a buffer column slidably installed inside the buffer, a first hook fixedly installed at one end of the buffer column, a spring support block fixedly installed inside the buffer, a limit post slidably installed inside the spring support block, one end of the limit post being fixedly connected to the buffer column, a limiter fixedly installed on the top of the buffer near one edge, a buffer box provided on one side of the column, and a dovetail groove opened on one side of the buffer box.
[0004] This gantry crane anti-collision device works by having the gantry crane push and compress a buffer column. The buffer device inside the buffer will then work to cushion the gantry crane. The compression of the buffer column will cause the limit column to move. The limit device inside the limiter can restrict the movement of the limit column, thereby limiting the release of energy by the buffer spring and preventing the buffer spring from resetting and causing the gantry crane to move in the opposite direction. However, the method of using the limit pin and fixing hole to fix the limit column cannot effectively limit the release of energy by the buffer spring. When the collision is severe, the fixing hole locks when it reaches the position of the limit pin, but the collision energy is not fully stored. The fixing hole and the limit pin still collide violently, causing damage. When the collision energy fails to make the fixing hole reach the limit pin, the spring will quickly release the energy, causing the gantry crane to rebound.
[0005] Therefore, this utility model provides a buffer and anti-collision structure for gantry cranes to solve the above problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] This utility model provides a buffer and anti-collision structure for gantry cranes, aiming to solve the problems of poor energy storage mechanism design in existing anti-collision structures mentioned in the background art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a gantry crane buffer and anti-collision structure, comprising a fixed seat fixedly installed on the ground at both ends of the gantry crane track, side wing plates A fixedly installed at both ends of the fixed seat near the gantry crane, a sliding seat slidably installed on the side of the two side wing plates A close to each other, and side wing plates B fixedly installed at both ends of the sliding seat away from the fixed seat. The fixed seat and the sliding seat are respectively provided with a plurality of buffer mechanisms. Each buffer mechanism includes a connecting column, a rotating plate rotatably connected to the connecting column at positions corresponding to both ends of the fixed seat, a sliding column rotatably connected to the end of the rotating plate away from the connecting column, and a stop plate slidably connected to the side wing plate A or the side wing plate B and in contact with the sliding column. The fixed seat is located on the buffer mechanism. Fixed plates are fixedly installed at both ends. A fixed plate is fixedly installed on the sliding seat between adjacent buffer mechanisms. Sliding plates are installed on both ends of the sliding seat corresponding to the extension direction of the side wing plate B. Several telescopic rods are fixedly installed between the abutment plate and the fixed plate and the sliding plate respectively. A first elastic element is sleeved on the telescopic rod. The sliding column is slidably connected to the side wing plate A or the side wing plate B. A support mechanism for adjusting the operation of the buffer mechanism is provided on the side of the sliding plate away from the first elastic element. An impact plate for contacting the gantry crane is fixedly connected to the sliding seat near the gantry crane at the inner position of the side wing plate A. The energy generated by the impact of the gantry crane is stored through the buffer mechanism. The buffer mechanism can be used to work in sequence through the support mechanism. When the buffer mechanism reaches its limit, it will not produce a strong rebound.
[0010] Preferably, the first elastic element is a buffer spring, and the two ends of the buffer spring are respectively fixedly connected to the abutment plate and the fixed plate or sliding plate. The buffer spring can effectively store the impact energy received.
[0011] Preferably, the support mechanism includes receiving grooves A formed at both ends of the side wing plate B along the sliding direction of the sliding column, a second elastic element disposed in the receiving groove A, a sliding groove formed on the sliding seat, and a support rod that moves along the sliding groove. The sliding plate moves along the receiving groove A. The two ends of the second elastic element are respectively fixed to the inner wall of the sliding plate and the receiving groove A. The support rod is fixedly connected to the sliding plate. One end of the support rod passes through the sliding groove and contacts the adjacent sliding seat or fixed seat. The adjacent sliding seat or fixed seat is provided with a receiving groove B for accommodating the support rod. The support mechanism can make the buffer mechanism operate sequentially. The acceleration of the buffer anti-collision mechanism when intercepting the gantry crane remains approximately unchanged, which can keep the gantry crane and the workpiece on the gantry crane stable during the impact.
[0012] Preferably, the connecting column is fixedly connected to the adjacent sliding seat, which can strengthen the overall integrity of the gantry crane buffer and anti-collision structure, and the position of the connecting column can be restored by moving the sliding seat.
[0013] Preferably, the fixed seat is provided with a recovery mechanism on the side away from the sliding seat. The recovery mechanism includes a housing fixedly mounted on the fixed seat, a support plate that moves laterally within the housing, and a plurality of push rods fixedly mounted on the side of the support plate near the fixed seat. One end of each push rod passes through the fixed seat and the sliding seat in sequence and is fixedly connected to the impact plate. The push rod is slidably connected to the fixed seat and the sliding seat. By moving the support plate toward the gantry crane, all buffer mechanisms can be sequentially driven to recover.
[0014] Preferably, the recovery mechanism further includes a hydraulic cylinder fixedly connected to the housing, a hydraulic rod fixedly connected to the output end of the hydraulic cylinder, and a push plate fixedly disposed at the end of the hydraulic rod away from the hydraulic cylinder for pushing the support plate. The recovery of the buffer anti-collision structure can be automatically controlled by controlling the hydraulic cylinder and the hydraulic rod.
[0015] (III) Beneficial Effects
[0016] This invention features an impact plate. The gantry crane first contacts the impact plate, and the movement of the impact plate drives the connecting column to move. The rotating plate rotates around the connecting column, and the sliding column slides on the sliding seat, moving towards both sides of the connecting column. The sliding column drives the abutment plate, and the abutment plate, fixed plate, and sliding plate compress the telescopic rod and the first elastic element, storing energy. When the connecting column moves to be on the same straight line as the sliding column, the first elastic element is in the compressed limit state. At this time, the connecting column no longer has the tendency to push the sliding seat forward, so that the gantry crane that is impacted will not be subjected to a strong rebound, thus forming a second impact.
[0017] This utility model, by setting a support rod, allows the sliding column to move to both sides when impacted. The first elastic element presses against the fixed plate or sliding plate, causing the support rod to move along the sliding groove. When the connecting column in the buffer mechanism moves to a straight line with the sliding column or to another preset position, the support rod simultaneously moves into the receiving groove B. At this point, the support rod no longer provides support. The buffer mechanism can be controlled to operate sequentially through the support mechanism. The acceleration of this buffer anti-collision mechanism when intercepting the gantry crane remains largely unchanged, which can keep the gantry crane and the workpiece on it stable during the impact process.
[0018] This utility model, by setting up a recovery mechanism, moves the support plate in the recovery mechanism toward the gantry crane. The support plate drives the push rod to move, and the push rod slides on the sliding seat and the fixed seat. At the same time, it pushes the impact plate to move, and the impact plate drives the connecting column to move. The connecting column pulls the sliding column, which in turn drives the sliding column to move, thereby driving all the buffer mechanisms to recover in sequence. Attached Figure Description
[0019] Figure 1 This is an overall layout diagram of a buffer and anti-collision structure for a gantry crane.
[0020] Figure 2 This is a schematic diagram of a buffer and anti-collision structure for a gantry crane.
[0021] Figure 3 This is a cross-sectional schematic diagram of a buffer and anti-collision structure for a gantry crane.
[0022] Figure 4 A schematic diagram of a buffer mechanism for a gantry crane's buffer and anti-collision structure;
[0023] Figure 5 for Figure 4 Enlarged view of point A in the middle;
[0024] Figure 6 This is a schematic diagram of the support mechanism for a gantry crane's buffer and anti-collision structure.
[0025] In the diagram: 1. Fixed seat; 11. Side wing plate A; 2. Sliding seat; 21. Side wing plate B; 3. Buffer mechanism; 31. Connecting column; 32. Rotating plate; 33. Sliding column; 34. Support plate; 35. Telescopic rod; 36. First elastic element; 4. Fixed plate; 41. Sliding plate; 5. Support mechanism; 51. Receiving groove A; 52. Second elastic element; 53. Sliding groove; 54. Support rod; 55. Receiving groove B; 6. Impact plate; 7. Recovery mechanism; 71. Outer shell; 72. Support plate; 73. Push rod; 74. Hydraulic cylinder; 75. Hydraulic rod; 76. Push plate. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] This utility model provides a buffer and anti-collision structure for a gantry crane, referring to... Figures 1 to 3The system includes fixed seats 1 fixedly mounted on the ground at both ends of the gantry crane track, side wing plates A11 fixedly mounted on both ends of the fixed seats 1 near the gantry crane, sliding seats 2 slidably mounted on the side of the two side wing plates A11 close to each other, and side wing plates B21 fixedly mounted on both ends of the sliding seats 2 away from the fixed seats 1. Several buffer mechanisms 3 are respectively provided on the fixed seats 1 and the sliding seats 2. Each buffer mechanism 3 includes a connecting column 31, a rotating plate 32 rotatably connected to the connecting column 31 at positions corresponding to both ends of the fixed seats 1, a sliding column 33 rotatably connected to the end of the rotating plate 32 away from the connecting column 31, and a stop plate 34 slidably connected to the side wing plate A11 or the side wing plate B21 and in contact with the sliding column 33. Fixed plates 4 are fixedly installed at both ends of the buffer mechanism 3 on seat 1. Fixed plates 4 are fixedly installed between adjacent buffer mechanisms 3 on sliding seat 2. Sliding plates 41 are installed at both ends of the sliding seat 2 corresponding to the extension direction of side wing plate B21. Several telescopic rods 35 are fixedly installed between the abutment plate 34 and the fixed plate 4 and the sliding plate 41 respectively. A first elastic element 36 is sleeved on the telescopic rod 35. The sliding column 33 is slidably connected to the side wing plate A11 or the side wing plate B21. A support mechanism 5 for adjusting the operation of the buffer mechanism 3 is provided on the side of the sliding plate 41 away from the first elastic element 36 on the sliding seat 2. An impact plate 6 for contacting the gantry crane is fixedly connected to the inner side of the side wing plate A11 of the sliding seat 2 near the gantry crane.
[0028] Specifically, when the gantry crane impacts the buffer structure, it first contacts the impact plate 6. The movement of the impact plate 6 causes the connecting column 31 to move, and the rotating plate 32 rotates around the connecting column 31. The sliding column 33 at the other end of the rotating plate 32 slides on the sliding seat 2 and moves towards both sides of the connecting column 31. The sliding column 33 drives the abutment plate 34, and the abutment plate 34, the fixed plate 4, the abutment plate 34 and the sliding plate 41 compress the telescopic rod 35 and the first elastic element 36, storing energy. The buffer mechanism 3 drives the corresponding sliding seat 2 to move, and the sliding seat 2 drives the adjacent connecting column 31 to move, so that the fixed seat 1 repeats the process of the previous set of sliding seats 2. This buffer structure... The number of sliding seats 2 can be set according to the size and weight of the gantry crane. The sliding seat 2 closer to the gantry crane is slidably connected to the inner side of the side wing plate B21 on the previous sliding seat 2. The support mechanism 5 can adjust the distance between the corresponding sliding seat 2 and the sliding seat 2 or fixed seat 1 on the side away from the gantry crane, so that the buffer mechanism 3 on the sliding seat 2 works in sequence. When the connecting column 31 moves to be on the same straight line as the sliding column 33, the first elastic element 36 is compressed to the limit. At this time, the connecting column 31 no longer has the tendency to push the sliding seat 2 forward, so that the gantry crane that is impacted will not be subjected to strong rebound, thus forming a second impact.
[0029] Furthermore, refer to Figure 3The first elastic element 36 is a buffer spring. The two ends of the buffer spring are fixedly connected to the abutment plate 34 and the fixed plate 4 or the sliding plate 41, respectively. The buffer spring can effectively store the impact energy.
[0030] Furthermore, refer to Figures 3 to 6 The support mechanism 5 includes receiving grooves A51 opened at both ends of the side wing plate B21 along the sliding direction of the sliding column 33, a second elastic member 52 disposed in the receiving groove A51, a sliding groove 53 opened on the sliding seat 2, and a support rod 54 that moves along the sliding groove 53. The sliding plate 41 moves along the receiving groove A51. The two ends of the second elastic member 52 are respectively fixed to the inner wall of the sliding plate 41 and the receiving groove A51. The support rod 54 is fixedly connected to the sliding plate 41. One end of the support rod 54 passes through the sliding groove 53 and contacts the adjacent sliding seat 2 or fixed seat 1. The adjacent sliding seat 2 or fixed seat 1 is provided with a receiving groove B55 for receiving the support rod 54.
[0031] Specifically, initially, one end of the support rod 54 slides within the sliding groove 53, while the other end abuts against the sliding seat 2 or fixed seat 1 on the side away from the gantry crane, temporarily stopping the buffer mechanism 3 on the adjacent side. The second elastic element 52 presses against the sliding plate 41. When impacted, the sliding column 33 moves to both sides, pressing against the fixed plate 4 or sliding plate 41 via the first elastic element 36. The sliding plate 41 moves, compressing the second elastic element 52 in the receiving groove A51, causing the support rod 54 to move along the sliding groove 53. When the connecting column 31 in the buffer mechanism 3 moves to a straight line with the sliding column 33, or When in other preset positions, the support rod 54 moves simultaneously into the receiving groove B55 on the adjacent sliding seat 2 or fixed seat 1. At this time, the support rod 54 no longer plays a supporting role, and the buffer mechanism 3 on the corresponding sliding seat 2 or fixed seat 1 starts to operate. The buffer mechanism 3 can be operated sequentially through the support mechanism 5. Compared with other buffer devices, due to the inherent characteristics of the elastic structure, the acceleration provided changes with the different compression processes. However, the acceleration of this buffer anti-collision mechanism when intercepting the gantry crane remains largely unchanged, which can keep the gantry crane and the workpiece on the gantry crane stable during the impact process.
[0032] It is worth noting that, referring to Figure 3 The connecting column 31 is fixedly connected to the adjacent sliding seat 2, which can strengthen the overall integrity of the gantry crane buffer and anti-collision structure. At the same time, the position of the connecting column 31 can be restored by moving the sliding seat 2.
[0033] It should be noted that, referring to Figures 2 to 3A recovery mechanism 7 is provided on the side of the fixed seat 1 away from the sliding seat 2. The recovery mechanism 7 includes a housing 71 fixedly mounted on the fixed seat 1, a support plate 72 that moves laterally inside the housing 71, and several push rods 73 fixedly mounted on the side of the support plate 72 near the fixed seat 1. One end of the push rod 73 passes through the fixed seat 1 and the sliding seat 2 in sequence and is fixedly connected to the impact plate 6. The push rod 73 is slidably connected to the fixed seat 1 and the sliding seat 2. After the impact, by moving the support plate 72 toward the gantry crane, the support plate 72 drives the push rod 73 to move. The push rod 73 slides on the sliding seat 2 and the fixed seat 1, and at the same time pushes the impact plate 6 to move. The impact plate 6 drives the connecting column 31 to move. The connecting column 31 pulls the sliding column 33, which drives the sliding column 33 to move, and in turn drives all the buffer mechanisms 3 to recover.
[0034] Furthermore, refer to Figures 2 to 3 The recovery mechanism 7 also includes a hydraulic cylinder 74 fixedly connected inside the housing 71, a hydraulic rod 75 fixedly connected to the output end of the hydraulic cylinder 74, and a push plate 76 fixedly disposed at the end of the hydraulic rod 75 away from the hydraulic cylinder 74 for pushing the support plate 72. When the buffer mechanism 3 needs to be restored, the hydraulic cylinder 74 is activated, the hydraulic cylinder 74 drives the hydraulic rod 75 to move, the hydraulic rod 75 drives the push plate 76 to move, and the push plate 76 is used to push the support plate 72 toward the gantry crane direction, so that the buffer mechanism 3 is restored.
[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A buffer and anti-collision structure for a gantry crane, characterized in that: The system includes a fixed seat (1) fixedly mounted on the ground at both ends of the gantry crane track, side wing plates A (11) fixedly mounted on both ends of the fixed seat (1) near the gantry crane, a sliding seat (2) slidably mounted on the side of the two side wing plates A (11) close to each other, and side wing plates B (21) fixedly mounted on both ends of the sliding seat (2) away from the fixed seat (1). The fixed seat (1) and the sliding seat (2) are each provided with several buffer mechanisms (3). Each buffer mechanism (3) includes a connecting column (31), a rotating plate (32) rotatably connected to the connecting column (31) at the positions corresponding to both ends of the fixed seat (1), a sliding column (33) rotatably connected to the end of the rotating plate (32) away from the connecting column (31), and a stop plate (34) slidably connected to the side wing plate A (11) or the side wing plate B (21) and in contact with the sliding column (33). The fixed seat (1) Fixed plates (4) are fixedly installed at both ends of the buffer mechanism (3) on the sliding seat (2). Fixed plates (4) are fixedly installed between adjacent buffer mechanisms (3) on the sliding seat (2). Sliding plates (41) are installed at both ends of the sliding seat (2) corresponding to the extension direction of the side wing plate B (21). Several telescopic rods (35) are fixedly installed between the abutment plate (34) and the fixed plate (4) and the sliding plate (41) respectively. A first elastic element (36) is sleeved on the telescopic rod (35). The sliding column (33) is slidably connected to the side wing plate A (11) or the side wing plate B (21). A support mechanism (5) for adjusting the operation of the buffer mechanism (3) is provided on the side of the sliding plate (41) away from the first elastic element (36) on the sliding seat (2). An impact plate (6) for contacting the gantry crane is fixedly connected to the inner side of the side wing plate A (11) of the sliding seat (2) near the gantry crane.
2. The gantry crane buffer and anti-collision structure according to claim 1, characterized in that: The first elastic element (36) is a buffer spring, and the two ends of the buffer spring are respectively fixedly connected to the abutment plate (34) and the fixed plate (4) or the sliding plate (41).
3. The gantry crane buffer and anti-collision structure according to claim 2, characterized in that: The support mechanism (5) includes receiving grooves A (51) opened at both ends of the side wing plate B (21) along the sliding direction of the sliding column (33), a second elastic member (52) disposed in the receiving groove A (51), a sliding groove (53) opened on the sliding seat (2), and a support rod (54) moving along the sliding groove (53). The sliding plate (41) moves along the receiving groove A (51). The two ends of the second elastic member (52) are respectively fixed on the inner wall of the sliding plate (41) and the receiving groove A (51). The support rod (54) is fixedly connected to the sliding plate (41). One end of the support rod (54) passes through the sliding groove (53) and contacts the adjacent sliding seat (2) or fixed seat (1). The adjacent sliding seat (2) or fixed seat (1) is provided with a receiving groove B (55) for accommodating the support rod (54).
4. The gantry crane buffer and anti-collision structure according to claim 3, characterized in that: The connecting column (31) is fixedly connected to the adjacent sliding seat (2).
5. The gantry crane buffer and anti-collision structure according to claim 4, characterized in that: The fixed seat (1) is provided with a recovery mechanism (7) on the side away from the sliding seat (2). The recovery mechanism (7) includes a housing (71) fixedly mounted on the fixed seat (1), a support plate (72) that moves laterally within the housing (71), and a plurality of push rods (73) fixedly mounted on the side of the support plate (72) near the fixed seat (1). One end of each push rod (73) passes through the fixed seat (1) and the sliding seat (2) in sequence and is fixedly connected to the impact plate (6). The push rods (73) are slidably connected to the fixed seat (1) and the sliding seat (2).
6. The gantry crane buffer and anti-collision structure according to claim 5, characterized in that: The recovery mechanism (7) further includes a hydraulic cylinder (74) fixedly connected inside the housing (71), a hydraulic rod (75) fixedly connected to the output end of the hydraulic cylinder (74), and a push plate (76) fixedly disposed at the end of the hydraulic rod (75) away from the hydraulic cylinder (74) for pushing the support plate (72).