Bottom stabilizing structure for gantry crane

Abstract

The utility model discloses a bottom stabilizing structure for a gantry crane, which comprises a gantry, and movable seats are movably connected to the front side and the rear side of the bottom of the gantry. The sliding rail, the moving seat and the door frame are stably fixed together through the clamping state of the clamping block and the clamping groove, the door frame and the moving seat cannot shake and move due to external force after being stopped, and when the moving seat and the sliding rail need to be released, the electric cylinder set is started and drives the lifting plate to move downwards, and the lifting plate drives the transmission plate to move downwards. The transmission plate is inclined in the downward moving process, the whole transmission plate moves towards the side close to the electric cylinder, the transmission plate drives the warping plate to rotate, the warping plate drives the clamping block to rotate and move, the contact locking effect is achieved between the movable seat and the sliding rail, and the beneficial effect that the bottom is stable is achieved; and the gantry crane can be stable and immovable when being subjected to strong thrust, so that the use stability of the gantry crane is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of portal cranes, in particular to a bottom stabilizing structure for portal cranes. Background Art

[0002] The gantry crane lifts the cargo through the lifting mechanism, then uses the luffing mechanism to adjust the amplitude of the boom to make the cargo reach the designated position, and then uses the coordination of the slewing mechanism and the running mechanism to accurately place the cargo at the target location. During the entire working process, the operator needs to accurately operate each mechanism through the control equipment in the driver's cab to ensure the safe and efficient operation of the crane.

[0003] A gantry crane is needed for transporting heavy objects. Traditional gantry cranes stop moving by locking the pulley at the bottom. When the gantry crane is subjected to a strong thrust, the locked pulley will slide against the inside of the slide rail, making it impossible for the gantry crane to be stably positioned. This causes the pulley at the bottom of the gantry crane to be worn, reducing the stability of the gantry crane. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a bottom stabilizing structure for a gantry crane, which has the advantage of a stable bottom and solves the problem that the gantry crane is stopped from moving by locking the pulley at the bottom. When the gantry crane is subjected to a strong thrust, the locked pulley will forcibly slide with the inside of the slide rail, making it impossible for the gantry crane to be stably positioned, resulting in the pulley at the bottom of the gantry crane being worn, thereby reducing the stability of the gantry crane in use.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a bottom stabilizing structure for a gantry crane, comprising a gantry, the front and rear sides of the bottom of the gantry are movably connected to a moving seat, the bottom of the moving seat is slidably connected to a slide rail, the top of the moving seat is fixedly connected to an electric cylinder group, the output end of the electric cylinder group is fixedly connected to a lifting plate, the front and rear sides of the lifting plate are movably connected to a transmission plate, the side of the transmission plate away from the lifting plate is movably connected to a rocker, the bottom inside the rocker is fixedly connected to a card block, the front and rear sides of the slide rail are provided with a card slot, the surface of the card block is in contact with the inner wall of the card slot, and the rocker is rotatably connected to the surface of the moving seat by a hinge.

[0006] As a preferred embodiment of the present invention, a stabilizing bar is provided on the front and rear sides of the electric cylinder group, the bottom of the stabilizing bar is fixedly connected to the top of the moving seat, and the top of the stabilizing bar passes through the top of the lifting plate.

[0007] As a preferred embodiment of the present invention, the top of the stabilizing bar is fixedly connected to a limiting plate, and the bottom of the limiting plate is in contact with the top of the lifting plate.

[0008] As a preferred embodiment of the present invention, a reinforcement block is fixedly connected to the bottom of the surface of the stabilizing rod, and the bottom of the reinforcement block is fixedly connected to the top of the moving seat.

[0009] As a preferred embodiment of the present invention, a stabilizing sleeve is provided on the top of the surface of the stabilizing rod, and the top of the stabilizing sleeve is fixedly connected to the bottom of the lifting plate.

[0010] As a preferred embodiment of the present invention, the output end of the electric cylinder group is fixedly connected to a reinforcement piece, and the top of the reinforcement piece is fixedly connected to the bottom of the lifting plate.

[0011] As a preferred embodiment of the present invention, a linkage rod is fixedly connected to the surface of the rocker, and the linkage rod is located at the front and rear sides of the movable seat.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model fixes the slide rail, the moving seat and the gantry stably together through the clamping state of the clamping block and the clamping slot. After the gantry and the moving seat stop, they will not shake or move due to external forces. When the moving seat and the slide rail need to be loosened, the electric cylinder group is started, and the electric cylinder group drives the lifting plate to move downward, and the lifting plate drives the transmission plate to move downward. During the downward movement of the transmission plate, the angle is tilted and the whole moves toward the side close to the electric cylinder, and the transmission plate drives the rocker to rotate, and the rocker drives the clamping block to rotate and move, and the clamping block exits the inside of the clamping slot, and the contact locking effect between the moving seat and the slide rail has the advantage of a stable bottom. By fixing the gantry crane and the slide rail, the gantry crane can be stable and motionless when subjected to strong thrust, thereby improving the stability of the gantry crane.

[0014] 2. The utility model can stabilize the sliding of the lifting plate by providing a stabilizing rod, thereby preventing the lifting plate from shaking during the sliding movement, causing the lifting plate to loosen, and improving the sliding stability of the lifting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a three-dimensional diagram of the slide rail of the utility model;

[0017] Figure 3 A perspective view of the seesaw of the present invention;

[0018] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the figure: 1. Gantry; 2. Moving seat; 3. Slide rail; 4. Electric cylinder group; 5. Lifting plate; 6. Transmission plate; 7. Rocker; 8. Block; 9. Slot; 10. Stabilizer bar; 11. Limit plate; 12. Reinforcement block; 13. Stabilizer sleeve; 14. Reinforcement piece; 15. Connecting rod. DETAILED DESCRIPTION

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

[0021] like Figures 1 to 4 As shown, the utility model provides a bottom stabilizing structure for a gantry crane, including a gantry 1, the front and rear sides of the bottom of the gantry 1 are movably connected to a moving seat 2, the bottom of the moving seat 2 is slidably connected to a slide rail 3, the top of the moving seat 2 is fixedly connected to an electric cylinder group 4, the output end of the electric cylinder group 4 is fixedly connected to a lifting plate 5, the front and rear sides of the lifting plate 5 are movably connected to a transmission plate 6, the side of the transmission plate 6 away from the lifting plate 5 is movably connected to a rocker 7, the bottom of the inner side of the rocker 7 is fixedly connected to a clamping block 8, the front and rear sides of the slide rail 3 are provided with a clamping groove 9, the surface of the clamping block 8 is in contact with the inner wall of the clamping groove 9, and the rocker 7 is rotatably connected to the surface of the moving seat 2 through a hinge.

[0022] refer to Figure 4 A stabilizing bar 10 is provided on the front and rear sides of the electric cylinder group 4 . The bottom of the stabilizing bar 10 is fixedly connected to the top of the moving seat 2 , and the top of the stabilizing bar 10 passes through the top of the lifting plate 5 .

[0023] As a technical optimization solution of the present invention, by providing a stabilizing bar 10, the lifting plate 5 can be stabilized in sliding, thereby preventing the lifting plate 5 from shaking during sliding movement, causing the lifting plate 5 to loosen, and improving the sliding stability of the lifting plate 5.

[0024] refer to Figure 4 The top of the stabilizing rod 10 is fixedly connected to the limiting plate 11 , and the bottom of the limiting plate 11 contacts the top of the lifting plate 5 .

[0025] As a technical optimization solution of the present invention, by setting a limit plate 11, the lifting plate 5 can be limited to prevent the lifting plate 5 from moving excessively, causing the lifting plate 5 to separate from the stabilizing bar 10, thereby improving the working stability of the lifting plate 5.

[0026] refer to Figure 4The bottom of the surface of the stabilizing rod 10 is fixedly connected with a reinforcing block 12 , and the bottom of the reinforcing block 12 is fixedly connected to the top of the moving seat 2 .

[0027] As a technical optimization solution of the present invention, by setting a reinforcement block 12, the connection between the stabilizing rod 10 and the movable seat 2 can be reinforced, thereby preventing the stabilizing rod 10 and the movable seat 2 from breaking during use, preventing the stabilizing rod 10 and the movable seat 2 from being unable to cooperate, and improving the use effect of the stabilizing rod 10 and the movable seat 2.

[0028] refer to Figure 4 The top of the surface of the stabilizing rod 10 is provided with a stabilizing sleeve 13 , and the top of the stabilizing sleeve 13 is fixedly connected to the bottom of the lifting plate 5 .

[0029] As a technical optimization solution of the present invention, by providing the stabilizing sleeve 13 , the lifting plate 5 can be stabilized by secondary sliding, thereby preventing the lifting plate 5 from shaking during the sliding movement, thereby improving the sliding stability of the lifting plate 5 .

[0030] refer to Figure 4 The output end of the electric cylinder group 4 is fixedly connected to a reinforcement member 14 , and the top of the reinforcement member 14 is fixedly connected to the bottom of the lifting plate 5 .

[0031] As a technical optimization solution of the present invention, by setting a reinforcement piece 14, the connection between the electric cylinder group 4 and the lifting plate 5 can be reinforced to avoid breakage of the electric cylinder group 4 and the lifting plate 5 during use, prevent the electric cylinder group 4 and the lifting plate 5 from being unable to cooperate, and improve the use effect of the electric cylinder group 4 and the lifting plate 5.

[0032] refer to Figure 3 The surface of the rocker plate 7 is fixedly connected with a connecting rod 15, and the connecting rod 15 is located at the front and rear sides of the moving seat 2.

[0033] As a technical optimization solution of the present invention, by setting a connecting rod 15, the seesaw 7 can be linked to avoid asynchronous movement of the seesaw 7 during use, resulting in the card block 8 being unable to synchronously exit the card slot 9, thereby improving the use effect of the card block 8.

[0034] The working principle and usage process of the utility model: when in use, the slide rail 3 is stably fixed together with the movable seat 2 and the door frame 1 through the engagement state of the block 8 and the slot 9. During this period, after the door frame 1 and the movable seat 2 stop, they will not shake or move due to external forces. When the movable seat 2 and the slide rail 3 need to be loosened, the electric cylinder group 4 is started, and the electric cylinder group 4 drives the lifting plate 5 to move downward, and the lifting plate 5 drives the transmission plate 6 to move downward. During the downward movement of the transmission plate 6, the angle is tilted and the whole moves toward the side close to the electric cylinder. The transmission plate 6 drives the rocker 7 to rotate, and the rocker 7 drives the block 8 to rotate and move. The block 8 exits the inside of the slot 9, and the locking effect between the movable seat 2 and the slide rail 3 is released.

[0035] To sum up: the gantry crane uses a bottom stabilizing structure, which solves the problem of stopping the gantry crane from moving by locking the pulley at the bottom through the coordinated use of the gantry 1, the moving seat 2, the slide rail 3, the electric cylinder group 4, the lifting plate 5, the transmission plate 6, the rocker 7, the block 8 and the slot 9. When the gantry crane is subjected to a strong thrust, the locked pulley will forcibly slide with the inside of the slide rail, making it impossible for the gantry crane to be stably positioned, resulting in the wear of the pulley at the bottom of the gantry crane, thereby reducing the stability of the gantry crane.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

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

Claims

1. A bottom stabilizing structure for a portal crane, comprising a portal frame (1), characterized in that: The front and rear sides of the bottom of the door frame (1) are movably connected to a moving seat (2), the bottom of the moving seat (2) is slidably connected to a slide rail (3), the top of the moving seat (2) is fixedly connected to an electric cylinder group (4), the output end of the electric cylinder group (4) is fixedly connected to a lifting plate (5), the front and rear sides of the lifting plate (5) are movably connected to a transmission plate (6), the side of the transmission plate (6) away from the lifting plate (5) is movably connected to a rocker (7), the bottom of the inner side of the rocker (7) is fixedly connected to a card block (8), the front and rear sides of the slide rail (3) are provided with a card slot (9), the surface of the card block (8) contacts the inner wall of the card slot (9), and the rocker (7) is rotatably connected to the surface of the moving seat (2) through a hinge.

2. The bottom stabilizing structure for a portal crane according to claim 1, characterized in that: Stabilizing rods (10) are provided on the front and rear sides of the electric cylinder group (4), the bottom of the stabilizing rod (10) is fixedly connected to the top of the moving seat (2), and the top of the stabilizing rod (10) passes through the top of the lifting plate (5).

3. The bottom stabilizing structure for a portal crane according to claim 2, characterized in that: The top of the stabilizing rod (10) is fixedly connected to a limiting plate (11), and the bottom of the limiting plate (11) contacts the top of the lifting plate (5).

4. The bottom stabilizing structure for a portal crane according to claim 2, characterized in that: The bottom of the surface of the stabilizing rod (10) is fixedly connected to a reinforcement block (12), and the bottom of the reinforcement block (12) is fixedly connected to the top of the moving seat (2).

5. The bottom stabilizing structure for a portal crane according to claim 2, characterized in that: A stabilizing sleeve (13) is sleeved on the top of the surface of the stabilizing rod (10), and the top of the stabilizing sleeve (13) is fixedly connected to the bottom of the lifting plate (5).

6. The bottom stabilizing structure for a portal crane according to claim 1, characterized in that: The output end of the electric cylinder group (4) is fixedly connected to a reinforcement member (14), and the top of the reinforcement member (14) is fixedly connected to the bottom of the lifting plate (5).

7. The bottom stabilizing structure for a portal crane according to claim 1, characterized in that: The surface of the rocker (7) is fixedly connected with a linkage rod (15), and the linkage rod (15) is located at the front and rear sides of the movable seat (2).

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