Anti-running brake for port portal crane

Abstract

The utility model discloses an anti-running brake for a port portal crane, which comprises a portal crane track and a portal crane main body, the bottom of the portal crane main body is fixedly connected with a bearing frame, and the inside of the bearing frame is rotatably connected with a roller. The double-end air cylinder is started to drive the two vertical rods to move inwards at the same time, so that the outer end of the stop plate moves downwards until the double-end air cylinder completely contracts and the stop plate is in a vertical state, the stop strip is driven to be inserted into the portal crane rail and attached to the inner wall of the portal crane rail, and the bearing frame is supported and stopped; and meanwhile, the second stop mechanism moves towards the inner side along with movement of the stop plate, secondary stop is conducted on the rolling wheel, and the beneficial effects that the multiple stop assemblies are synchronously controlled through the single driving source, the synchronization effect of the multiple stop assemblies is kept, multi-point stop can be conducted on the portal crane at the same time, the stop stability is improved, and use by a user is facilitated are achieved.

Description

Technical Field

[0001] This utility model relates to the field of port gantry crane technology, specifically to an anti-runaway brake for port gantry cranes. Background Technology

[0002] A port gantry crane, also known simply as a portal crane or gantry hoist, is a type of electrically driven, rail-mounted boom crane. Its structure can be broadly divided into two parts: the upper rotating section and the lower traveling section. The upper rotating section is mounted on a tall, portal-shaped base frame and can rotate 360 ​​degrees relative to the lower traveling section. The gantry frame runs along the rails and also serves as the load-bearing component of the crane. The crane's own weight and the load it carries are both borne by the gantry frame and transmitted to the ground rails.

[0003] A search revealed Chinese patent application number 202323639561.X, which discloses an anti-runaway brake for a port gantry crane. The brake includes a mounting plate and a wheel frame. The wheel frame is fixedly mounted on the mounting plate, which is used to mount the crane. A movable gear is rotatably mounted on the wheel frame. A track rack meshes with the movable gear and has an elongated opening. Two first braking mechanisms are fixedly mounted on the mounting plate, clamping the movable gear to restrict its rotation. A second braking mechanism is fixedly mounted on the wheel frame and can slide along the elongated opening of the track rack. This utility model provides an anti-runaway brake for a port gantry crane that not only provides braking but also features two braking structures for better braking performance, effectively ensuring the stability of the port gantry crane during operation. It also facilitates braking and releasing operations, making it highly practical.

[0004] Although the aforementioned patent not only provides braking but also features two braking structures for enhanced braking performance, effectively ensuring the stability of the port gantry crane during operation and facilitating braking and de-braking operations, making it highly practical, the use of different drive sources to control multiple stopping components in actual use can easily lead to asynchronous stopping components, affecting the stopping effect. Furthermore, the complex structure makes it prone to malfunctions and increases maintenance costs, causing inconvenience for users.

[0005] Therefore, it is necessary to modify it to synchronously control multiple stop components through a single drive source, maintain the synchronous effect of multiple stop components, enable it to simultaneously stop the door machine at multiple points, improve the stopping stability, and facilitate user operation. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide an anti-runaway brake for port gantry cranes. This brake features synchronous control of multiple stopping components via a single drive source, maintaining the synchronized effect of the multiple stopping components and enabling simultaneous multi-point stopping of the gantry crane, thus improving stopping stability and user convenience. It solves the problems of inconsistent stopping components caused by controlling multiple stopping components with different drive sources, which affects the stopping effect, and the complex structure, susceptibility to malfunction, and high maintenance costs that cause inconvenience to users.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-runaway brake for a port gantry crane, comprising a gantry crane track and a gantry crane body. A support frame is fixedly connected to the bottom of the gantry crane body, and rollers are rotatably connected inside the support frame. The bottom of the rollers is in rolling contact with the inner wall of the gantry crane track. A square groove is provided at the bottom of the gantry crane body, and a double-headed cylinder is fixedly connected inside the square groove. First stop mechanisms are hinged to both the left and right sides of the support frame. The top of the first stop mechanism is fixedly connected to the output end of the double-headed cylinder, and a second stop mechanism is provided on the inner side of each of the two first stop mechanisms.

[0008] As a preferred embodiment of the present invention, the first stopping mechanism includes a stopping plate hinged to the outside of the support frame, a stopping strip fixedly connected to the outer end of the stopping plate, a connecting seat slidably connected to the top of the stopping plate, a vertical rod hinged inside the connecting seat, and the top end of the vertical rod fixedly connected to the output end of the double-headed cylinder.

[0009] As a preferred embodiment of this utility model, the second stopping mechanism includes a damping rod fixedly connected to the inner side of the first stopping mechanism. The bottom end of the damping rod is fixedly connected to a ceramic friction block that cooperates with a roller. A compression spring is sleeved on the surface of the damping rod. The top end of the compression spring is fixedly connected to the inner side of the first stopping mechanism, and the bottom end of the compression spring is fixedly connected to the top of the ceramic friction block.

[0010] As a preferred embodiment of this utility model, a T-shaped block is fixedly connected to the bottom of the connecting seat, and a T-shaped groove is provided on the top of the stop plate to cooperate with the T-shaped block. The surface of the T-shaped block is slidably connected to the inner wall of the T-shaped groove.

[0011] As a preferred embodiment of this utility model, a U-shaped friction pad is fixedly connected to the inner wall of the gantry crane track, and the lower part of the roller surface is in contact with the inner wall of the U-shaped friction pad.

[0012] As a preferred embodiment of this utility model, the front and rear sides of the bottom of the stop strip are fixedly connected with U-shaped inserts for use with the gantry rail, and the surface of the U-shaped inserts and the bottom of the stop strip are provided with vermicular graphite cast iron layers.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model utilizes a double-headed cylinder to simultaneously retract its output ends on both sides, thereby driving two vertical rods to move inwards. As the vertical rods move inwards, they drive the connecting seat to move inwards and slide on top of the stop plate, causing the outer end of the stop plate to move downwards until the double-headed cylinder is fully retracted and the stop plate is in a vertical state. This causes the stop strip to insert into the interior of the door machine track and fit against the inner wall of the door machine track, supporting and stopping the support frame. Simultaneously, the second stop mechanism moves inwards following the movement of the stop plate, causing the inner side of the ceramic friction block to fit against the surface of the roller, providing secondary stopping for the roller. This achieves the advantage of synchronously controlling multiple stop components through a single drive source, maintaining the synchronous effect of multiple stop components, enabling simultaneous multi-point stopping of the door machine, improving stopping stability, and facilitating user operation.

[0015] 2. This utility model uses a combination of a stop plate, a stop strip, a connecting seat, and a vertical rod. When the double-headed cylinder contracts, it drives the vertical rod to move inward, causing the connecting seat to slide inward on the top of the stop plate to make it vertical. When the stop plate is vertical, it drives the stop strip to insert into the interior of the gantry rail, thus stopping the movement of the support frame and the gantry body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 This utility model Figure 2 A magnified structural diagram of A in the diagram.

[0020] In the diagram: 1. Door operator track; 2. Door operator body; 3. Support frame; 4. Roller; 5. Double-headed cylinder; 6. First stop mechanism; 7. Second stop mechanism; 8. Stop plate; 9. Stop strip; 10. Connecting seat; 11. Vertical rod; 12. Damping rod; 13. Ceramic friction block; 14. Compression spring; 15. T-block; 16. T-slot; 17. U-shaped friction pad; 18. U-shaped insert. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 4 As shown, the present invention provides an anti-runaway brake for a port gantry crane, comprising a gantry crane track 1 and a gantry crane body 2. A support frame 3 is fixedly connected to the bottom of the gantry crane body 2. A roller 4 is rotatably connected inside the support frame 3. The bottom of the roller 4 is in rolling connection with the inner wall of the gantry crane track 1. A square groove is provided at the bottom of the gantry crane body 2, and a double-headed cylinder 5 is fixedly connected inside the square groove. A first stop mechanism 6 is hinged to both the left and right sides of the support frame 3. The top of the first stop mechanism 6 is fixedly connected to the output end of the double-headed cylinder 5, and a second stop mechanism 7 is provided on the inner side of each of the two first stop mechanisms 6.

[0023] refer to Figure 1 The first stop mechanism 6 includes a stop plate 8 hinged to the outside of the support frame 3. A stop strip 9 is fixedly connected to the outer end of the stop plate 8. A connecting seat 10 is slidably connected to the top of the stop plate 8. A vertical rod 11 is hinged inside the connecting seat 10. The top end of the vertical rod 11 is fixedly connected to the output end of the double-headed cylinder 5.

[0024] As a technical optimization of this utility model, by setting up a stop plate 8, a stop strip 9, a connecting seat 10 and a vertical rod 11 for coordinated use, when the double-headed cylinder 5 retracts, it drives the vertical rod 11 to move inward, so that the connecting seat 10 slides inward on the upper side of the stop plate 8 to make it vertical. When the stop plate 8 is vertical, it drives the stop strip 9 to insert into the interior of the gantry rail 1, which has a stopping effect on the support frame 3 and the gantry body.

[0025] refer to Figure 1 The second stop mechanism 7 includes a damping rod 12 fixedly connected to the inner side of the first stop mechanism 6. The bottom end of the damping rod 12 is fixedly connected to a ceramic friction block 13 that works with the roller 4. A compression spring 14 is sleeved on the surface of the damping rod 12. The top end of the compression spring 14 is fixedly connected to the inner side of the first stop mechanism 6, and the bottom end of the compression spring 14 is fixedly connected to the top of the ceramic friction block 13.

[0026] As a technical optimization of this utility model, by setting up the damping rod 12, ceramic friction block 13 and compression spring 14 in combination, when the double-headed cylinder 5 retracts and drives the first stop mechanism 6 to retract, the damping rod 12 moves inward, causing the inner surface of the ceramic friction block 13 to come into contact with the surface of the roller 4 to stop it, and the compression spring 14 applies pressure to the ceramic friction block 13 to improve the stopping effect.

[0027] refer to Figure 3 The bottom of the connecting seat 10 is fixedly connected to a T-shaped block 15, and the top of the stop plate 8 is provided with a T-shaped groove 16 that cooperates with the T-shaped block 15. The surface of the T-shaped block 15 is slidably connected to the inner wall of the T-shaped groove 16.

[0028] As a technical optimization of this utility model, by setting the T-shaped block 15 and the T-shaped groove 16 in cooperation, when the connecting seat 10 slides on the top of the stop plate 8 with the movement of the vertical rod 11, the T-shaped block 15 slides inside the T-shaped groove 16, which has a reinforcing effect on the connecting seat 10, preventing the connecting seat 10 from falling off during use, and at the same time making it only able to move horizontally, avoiding tilting.

[0029] refer to Figure 2 A U-shaped friction pad 17 is fixedly connected to the inner wall of the gantry track 1, and the lower part of the surface of the roller 4 is in contact with the inner wall of the U-shaped friction pad 17.

[0030] As a technical optimization of this utility model, by setting a U-shaped friction pad 17, the friction of the inner wall of the door machine track 1 is increased, which avoids the phenomenon of the roller 4 slipping during use. At the same time, when the stop strip 9 is inserted into the door machine track 1, the friction of the contact surface is increased, and the stopping effect is improved.

[0031] refer to Figure 4 The front and rear sides of the bottom of the stop strip 9 are fixedly connected with U-shaped inserts 18 that are used in conjunction with the gantry rail 1. The surface of the U-shaped inserts 18 and the bottom of the stop strip 9 are both provided with vermicular graphite cast iron layers.

[0032] As a technical optimization of this utility model, by setting a U-shaped insert 18 with a vermicular graphite cast iron layer, when the stop strip 9 stops, the U-shaped insert 18 is inserted into the inside of the gantry rail 1 and completely fits against its inner wall, which improves the stopping effect and increases the overall strength and service life of the stop strip 9, avoiding the situation where the stop strip 9 is deformed and affects its use.

[0033] The working principle and usage process of this utility model are as follows: By activating the double-headed cylinder 5, the output ends of its left and right ends retract simultaneously, driving the two vertical rods 11 to move inward at the same time. When the vertical rods 11 move inward, they drive the connecting seat 10 to move inward and slide on the top of the stop plate 8, causing the outer end of the stop plate 8 to move downward until the double-headed cylinder 5 is fully retracted and the stop plate 8 is in a vertical state. This causes the stop strip 9 to be inserted into the interior of the door machine track 1 and to fit against the inner wall of the door machine track 1, supporting and stopping the support frame 3. At the same time, the second stop mechanism 7 moves inward following the movement of the stop plate 8, causing the inner side of the ceramic friction block 13 to fit against the surface of the roller 4, thus stopping the roller 4 a second time. This achieves the advantage of synchronously controlling multiple stop components through a single drive source, maintaining the synchronous effect of multiple stop components, enabling the door machine to stop at multiple points simultaneously, improving the stability of the stop, and making it convenient for users.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A runaway prevention brake for a port gantry crane, comprising a crane rail (1) and a crane body (2), characterized in that: The bottom of the main body (2) of the door operator is fixedly connected to a support frame (3), and a roller (4) is rotatably connected inside the support frame (3). The bottom of the roller (4) is rotatably connected to the inner wall of the door operator track (1). A square groove is opened at the bottom of the main body (2), and a double-headed cylinder (5) is fixedly connected inside the square groove. A first stop mechanism (6) is hinged on both the left and right sides of the support frame (3). The top of the first stop mechanism (6) is fixedly connected to the output end of the double-headed cylinder (5), and a second stop mechanism (7) is provided on the inner side of both first stop mechanisms (6).

2. The anti-run brake for a port door machine of claim 1, wherein: The first stop mechanism (6) includes a stop plate (8) hinged to the outside of the support frame (3). A stop strip (9) is fixedly connected to the outer end of the stop plate (8). A connecting seat (10) is slidably connected to the top of the stop plate (8). A vertical rod (11) is hinged inside the connecting seat (10). The top end of the vertical rod (11) is fixedly connected to the output end of the double-headed cylinder (5).

3. The anti-run brake for a port door machine of claim 1, wherein: The second stop mechanism (7) includes a damping rod (12) fixedly connected to the inside of the first stop mechanism (6). The bottom end of the damping rod (12) is fixedly connected to a ceramic friction block (13) that works with the roller (4). A compression spring (14) is sleeved on the surface of the damping rod (12). The top end of the compression spring (14) is fixedly connected to the inside of the first stop mechanism (6), and the bottom end of the compression spring (14) is fixedly connected to the top of the ceramic friction block (13).

4. The anti-runaway brake for a port gantry crane according to claim 2, characterized in that: The bottom of the connecting seat (10) is fixedly connected to a T-shaped block (15), and the top of the stop plate (8) is provided with a T-shaped groove (16) that cooperates with the T-shaped block (15). The surface of the T-shaped block (15) is slidably connected to the inner wall of the T-shaped groove (16).

5. The anti-run brake for a port door machine of claim 1, wherein: The inner wall of the gantry track (1) is fixedly connected to a U-shaped friction pad (17), and the lower part of the surface of the roller (4) is in contact with the inner wall of the U-shaped friction pad (17).

6. The anti-run brake for a port door machine of claim 2, wherein: The front and rear sides of the bottom of the stop strip (9) are fixedly connected with U-shaped inserts (18) that cooperate with the gantry rail (1). The surface of the U-shaped inserts (18) and the bottom of the stop strip (9) are provided with vermicular graphite cast iron layers.

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