Anti-collision device for gantry crane

Abstract

The utility model relates to a gantry crane anti-collision device which comprises a gantry crane shell, a cavity is formed in the right side of the gantry crane shell, and a protection mechanism is arranged between the interior of the cavity and the right side of the gantry crane shell. The protection mechanism comprises two connecting pieces fixedly installed on the left inner wall of the cavity, an installation plate is fixedly installed between the right ends of the two connecting pieces, an anti-collision plate is arranged on the right side of the installation plate, and a buffering piece is arranged between the installation plate and the anti-collision plate. According to the anti-collision device for the gantry crane, by arranging the push rod, the pressing block and the travel switch, when shells of two gantry cranes get close to each other to a certain degree, the push rod can push the pressing block to make contact with the travel switch, the travel switch is triggered, then a power source of the gantry crane is automatically cut off, and the gantry crane stops running; therefore, the problem of collision caused by misoperation or other reasons in the operation process of the gantry crane shell is fundamentally solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel beam lifting equipment, in particular to an anti-collision device for a gantry crane. Background Art

[0002] Gantry crane is a kind of steel beam lifting equipment, also called gantry crane or portal crane. It is a common lifting equipment, usually used for the installation of large equipment and the handling of heavy goods. Its structural feature is that it has a frame similar to a door frame that can move on the track for lifting operations.

[0003] After searching, for example, the utility model patent with Chinese patent publication number CN215924200U discloses an anti-collision limit device for a gantry crane, including a track, a fixed block is provided on one side of the track, a spring seat is installed on one side surface wall of the fixed block, two wide plates are symmetrically installed on one side surface wall of the fixed block, a sliding bar is installed on one side surface wall of the two wide plates, a buffer frame is provided between the two wide plates, and sliding grooves are provided on both side surfaces of the buffer frame. The utility model provides a fixed block, which can provide sufficient supporting force for the spring seat and the wide plate, the spring seat can weaken the impact force caused by the impact of the crane body, the wide plate can provide a limit for the movement of the buffer block to prevent dislocation, and the fixed hook can fix the crane body as a whole. When the gantry crane is not in use, it plays a fixing role to prevent it from being displaced by strong winds.

[0004] However, the above utility model patent has some defects during use. When two gantry cranes are operating at the same time, the two gantry cranes may collide due to operational errors or other factors. Although the above device can reduce the impact force caused by the collision, it cannot fundamentally solve the collision problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a gantry crane anti-collision device, which has the advantages of fundamentally reducing further damage caused by a collision, and solves the problem that when two gantry cranes are operating at the same time, the two gantry cranes may collide due to operational errors or other factors. Although the above device can reduce the impact force caused by the collision, it cannot fundamentally solve the collision problem.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gantry crane anti-collision device, comprising a gantry crane shell, a cavity is opened on the right side of the gantry crane shell, and a protective mechanism is arranged between the inside of the cavity and the right side of the gantry crane shell;

[0007] The protective mechanism includes two connecting members fixedly mounted on the left inner wall of the cavity, a mounting plate fixedly mounted between the right ends of the two connecting members, an anti-collision plate is arranged on the right side of the mounting plate, a buffer member is arranged between the mounting plate and the anti-collision plate, a push rod fixedly mounted on the left side of the mounting plate, a pressure block fixedly mounted on the left end of the push rod, and a travel switch fixedly mounted on the left inner wall of the cavity.

[0008] Furthermore, the connecting part includes fixing rods fixedly installed on the upper and lower ends of the left inner wall of the cavity, the outer surfaces of the two fixing rods are sleeved with sleeves, and the outer surfaces of the two fixing rods are sleeved with springs fixedly connected between the inner wall of the cavity and one end of the sleeve.

[0009] Furthermore, one end of the two sleeves passes through the right side wall of the gantry crane shell and is fixedly connected to the mounting plate.

[0010] Furthermore, the buffer component includes a slide groove opened on the right side of the mounting plate, two sliders are slidably installed inside the slide groove, two springs are fixedly installed between the two sliders, and movable rods are rotatably installed between the two sliders and the anti-collision plate.

[0011] Furthermore, an airbag is arranged on the right side of the anti-collision plate.

[0012] Furthermore, one end of the push rod passes through the left side wall of the gantry crane shell and extends to the interior of the cavity, and the pressure block and the travel switch are located on the same horizontal plane.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The gantry crane anti-collision device, through the combined design of buffer parts and airbags, can absorb and disperse the impact energy when the gantry crane shell collides, and under the action of the connecting parts, further reduce the impact force during the collision, thereby reducing the damage caused between the two gantry crane shells.

[0015] 2. The gantry crane anti-collision device is equipped with a push rod, a pressure block and a travel switch. When the two gantry crane shells approach each other to a certain extent, the push rod will push the pressure block to contact the travel switch, triggering the travel switch, and then automatically cutting off the power source of the gantry crane to stop it from running, thereby fundamentally solving the collision problem of the gantry crane shell caused by operational errors or other reasons during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the protection mechanism of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A magnified view of the structure in the middle.

[0019] In the figure: 1. gantry crane shell; 2. cavity; 3. protection mechanism; 301. connecting part; 302. mounting plate; 303. anti-collision plate; 304. buffer; 305. push rod; 306. pressure block; 307. travel switch; 401. fixing rod; 402. sleeve; 403. spring one; 501. slide groove; 502. slider; 503. spring two; 504. movable rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 A gantry crane anti-collision device in this embodiment includes a gantry crane shell 1, a cavity 2 is opened on the right side of the gantry crane shell 1, and a protective mechanism 3 is arranged between the inside of the cavity 2 and the right side of the gantry crane shell 1.

[0022] The protection mechanism 3 includes two connecting members 301 fixedly mounted on the left inner wall of the cavity 2, a mounting plate 302 fixedly mounted between the right ends of the two connecting members 301, an anti-collision plate 303 is arranged on the right side of the mounting plate 302, a buffer member 304 is arranged between the mounting plate 302 and the anti-collision plate 303, a push rod 305 fixedly mounted on the left side of the mounting plate 302, a pressure block 306 fixedly mounted on the left end of the push rod 305, and a travel switch 307 fixedly mounted on the left inner wall of the cavity 2.

[0023] The connecting piece 301 includes fixing rods 401 fixedly mounted on the upper and lower ends of the left inner wall of the cavity 2. The outer surfaces of the two fixing rods 401 are both sleeved with sleeves 402. The outer surfaces of the two fixing rods 401 are both sleeved with springs 403 fixedly connected between the inner wall of the cavity 2 and one end of the sleeve 402.

[0024] The connecting member 301 is a supporting component of the protection mechanism 3, and plays a role of supporting connection. At the same time, through the left and right movement of the sleeve 402, the spring 1 403 is extended and contracted, and cooperates with the buffer member 304 to absorb the impact force.

[0025] The buffer member 304 includes a slide groove 501 opened on the right side of the mounting plate 302. Two sliders 502 are slidably installed inside the slide groove 501. A spring 503 is fixedly installed between the two sliders 502. A movable rod 504 is rotatably installed between the two sliders 502 and the anti-collision plate 303.

[0026] The buffer 304 includes a second spring 503, which is installed between two sliders 502 in the slide groove 501. When a collision occurs, the second spring 503 can absorb part of the impact force by compression, thereby reducing potential damage to the gantry crane shell 1 and other structures.

[0027] An airbag is arranged on the right side of the anti-collision plate 303. At the moment of collision, the airbag can absorb part of the energy generated by the collision, thereby reducing the degree of damage to the gantry crane structure and surrounding objects.

[0028] When a collision occurs, the mounting plate 302 will generate an impact force, driving the push rod 305 and the pressure block 306 to move, and during the movement, they will touch the travel switch 307, and the travel switch 307 is electrically connected to the power source of the gantry crane. When the travel switch 307 is triggered, the power source is turned off, and the gantry crane stops running. The protective mechanism 3 not only has a good impact resistance effect, but also can cut off the power source of the gantry crane when a collision occurs, thereby fundamentally avoiding further damage.

[0029] When implementing, follow these steps:

[0030] 1) When the anti-collision plate 303 is hit, the airbag absorbs a certain impact force, and at the same time, the two movable rods 504 rotate to drive the two sliders 502 to slide in the slide groove 501 and squeeze the second spring 503, absorbing and dispersing the impact energy under the contraction and expansion of the second spring 503;

[0031] 2) At the same time, as the mounting plate 302 moves, the two sleeves 402 slide on the surface of the fixing rod 401 and press the spring 1 403, thereby further absorbing the impact force;

[0032] 3) The movement of the mounting plate 302 drives the push rod 305 and the pressing block 306 to move, and when the pressing block 306 contacts the travel switch 307, the travel switch 307 is triggered;

[0033] 4) Finally, the power source of the gantry crane housing 1 is automatically cut off to stop its operation.

[0034] In summary, the gantry crane anti-collision device, through the combined design of the buffer 304 and the airbag, can absorb and disperse the impact energy when the gantry crane shell 1 collides, and under the action of the connecting member 301, further reduce the impact force during the collision, thereby reducing the damage caused between the two gantry crane shells 1.

[0035] Furthermore, by providing a push rod 305, a pressure block 306 and a travel switch 307, when the two gantry crane shells 1 approach each other to a certain extent, the push rod 305 will push the pressure block 306 to contact the travel switch 307, triggering the travel switch 307, and then automatically cutting off the power source of the gantry crane to stop it from running, thereby fundamentally solving the collision problem of the gantry crane shell 1 caused by operational errors or other reasons during operation.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gantry crane anti-collision device, comprising a gantry crane housing (1), characterized in that: A cavity (2) is provided on the right side of the gantry crane housing (1), and a protection mechanism (3) is provided between the inside of the cavity (2) and the right side of the gantry crane housing (1); The protection mechanism (3) comprises two connecting members (301) fixedly mounted on the left inner wall of the cavity (2); a mounting plate (302) is fixedly mounted between the right ends of the two connecting members (301); an anti-collision plate (303) is arranged on the right side of the mounting plate (302); a buffer member (304) is arranged between the mounting plate (302) and the anti-collision plate (303); a push rod (305) is fixedly mounted on the left side of the mounting plate (302); a pressure block (306) is fixedly mounted on the left end of the push rod (305); and a travel switch (307) is fixedly mounted on the left inner wall of the cavity (2).

2. The anti-collision device for a gantry crane according to claim 1, characterized in that: The connecting member (301) comprises fixing rods (401) fixedly mounted on the upper and lower ends of the left inner wall of the cavity (2); the outer surfaces of the two fixing rods (401) are sleeved with sleeves (402); the outer surfaces of the two fixing rods (401) are sleeved with springs (403) fixedly connected between the inner wall of the cavity (2) and one end of the sleeve (402).

3. The anti-collision device for a gantry crane according to claim 2, characterized in that: One end of each of the two sleeves (402) passes through the right side wall of the gantry crane housing (1) and is fixedly connected to the mounting plate (302).

4. The anti-collision device for a gantry crane according to claim 1, characterized in that: The buffer member (304) comprises a slide groove (501) provided on the right side of the mounting plate (302), two sliders (502) being slidably mounted inside the slide groove (501), a spring 2 (503) being fixedly mounted between the two sliders (502), and a movable rod (504) being rotatably mounted between the two sliders (502) and the anti-collision plate (303).

5. The anti-collision device for a gantry crane according to claim 1, characterized in that: An air bag is arranged on the right side of the anti-collision plate (303).

6. The anti-collision device for a gantry crane according to claim 1, characterized in that: The push One end of the rod (305) passes through the left side wall of the gantry crane housing (1) and extends into the interior of the cavity (2). The pressing block (306) and the travel switch (307) are located on the same horizontal plane.

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