Portal crane automatic locking device

Abstract

The utility model discloses a gantry crane automatic locking rail device relates to gantry crane locking rail technical field, including the shell, the inner side of guide rail is provided with wheel, the outer surface of wheel is provided with the locating seat, the inner side of locating seat is provided with the locating block, the inner side of connecting portion is provided with the locking rail mechanism. This gantry crane automatic locking rail device, through the locking rail mechanism that sets up can automatically complete the locking operation of gantry crane wheel, has greatly improved work efficiency, and the locking rail mechanism adopts gear transmission mode, and the structure is stable and reliable, and is not easy to be influenced by lateral force to prolong the service life of the device, and the device covers small, saves the production space, has higher practicality and economy, through the cooperation of locating rod, locating screw and spur gear, realizes the automatic closure of locking rail mechanism, makes the gantry crane wheel after moving to the specified position can be locked quickly and accurately, ensures the safe operation of gantry crane.

Description

Technical Field

[0001] This utility model relates to the field of gantry crane rail locking technology, specifically an automatic rail locking device for gantry cranes. Background Technology

[0002] Currently, with economic development, the application of container crane gantry frames is becoming increasingly common. Container gantry frames are composed of a variety of parts and equipment, among which the gantry crane wheels are relatively important. Gantry crane wheels are heavy and need to be stably installed on the container gantry frame's tracks during installation. Before installation, the gantry crane wheels need to be moved to the container gantry frame's tracks.

[0003] However, the existing rail locking device requires the operator to hold the limiting blocks and place them on the rail. The two limiting blocks are located on the front and rear sides of the H-shaped rail wheel to complete the locking operation. This operation mode is inefficient.

[0004] To address the aforementioned deficiencies, Chinese Patent No. CN218808513U discloses a wheel locking device, comprising a locking swing arm and a base plate. A steel rail is fixedly mounted on the base plate, and an H-shaped rail wheel is correspondingly mounted on the steel rail. The lower end of the locking swing arm is rotatably connected to the base plate, and the locking swing arm is arranged parallel to the steel rail. Two corresponding limiting blocks are fixedly mounted on the locking swing arm, forming a limiting groove between the two limiting blocks and the locking swing arm. The limiting groove corresponds to the position of the side plate of the H-shaped rail wheel. The locking arm is equipped with a drive assembly that drives the locking arm to rotate. When the side plate of the H-shaped rail wheel moves to the corresponding position of the limiting groove, the output shaft of the drive assembly extends, the locking arm rotates along the shaft, and the side plate is inserted into the limiting groove. The limiting block limits the side plate. Compared with the traditional placement locking device, no manual operation is required, which improves work efficiency. Compared with the push rod locking device, the drive assembly is not affected by lateral force, which extends the service life of the drive assembly. It also occupies less space and saves production space.

[0005] The aforementioned device uses a drive assembly to insert the side plate into the limiting groove during use, thereby achieving a limiting function. However, some components of the aforementioned rail locking device have a short service life due to lateral forces, which can easily lead to safety hazards in the equipment. Utility Model Content

[0006] The purpose of this utility model is to provide an automatic rail locking device for gantry cranes, so as to solve the problems of low efficiency, need for manual operation, and short service life of some devices due to lateral forces in the existing rail locking devices mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic rail locking device for a gantry crane, comprising a housing, two sets of symmetrical connecting parts on the outer surface of the housing, a guide rail on the bottom surface of the housing, a wheel on the inner side of the guide rail, a positioning seat on the outer surface of the wheel, a positioning block on the inner side of the positioning seat, and an automatic closing rail locking mechanism on the inner side of the connecting parts.

[0008] Furthermore, a protective shell is provided on the outer surface of the connecting part, and a connecting block is provided at the end of the connecting part near the wheel.

[0009] Furthermore, the locking mechanism includes a positioning rod, which is disposed on the inner side of the connecting part, and a positioning screw is provided on the inner side of the positioning rod.

[0010] Furthermore, a spur gear one is provided on the outer surface of the positioning screw, and the spur gear one and the spur gear two are meshed together. A rotating rod is provided on the outer surface of the spur gear two.

[0011] Furthermore, a fixing member is provided on the outer surface of the connecting block, a positioning block is provided on the bottom surface of the fixing member, and a driving rod is provided on the inner side of the fixing member.

[0012] Furthermore, a bevel gear one is provided on the outer surface of the drive rod, and the bevel gear one and bevel gear two are meshed together. The surface of the bevel gear two is provided with a threaded rod.

[0013] Furthermore, a fastening block is provided on the outer surface of the threaded rod, and the fastening block is located on the inner side of the fixing member.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) The locking mechanism can automatically complete the locking operation of the gantry crane wheels, which greatly improves the work efficiency. The locking mechanism adopts gear transmission, which is stable and reliable and is not easily affected by lateral forces, thus extending the service life of the device. The device occupies a small area, saves production space, and has high practicality and economy. (2) The automatic closing of the rail locking mechanism is achieved through the cooperation of the positioning rod, the positioning screw and the spur gear, so that the gantry crane wheels can be locked quickly and accurately after moving to the designated position, thus ensuring the safe operation of the gantry crane; (3) By setting a protective shell at the connection, the interference and damage of external factors to the internal structure of the rail locking device are effectively prevented, and the durability and stability of the device are improved. At the same time, the design of the connecting block makes the device more convenient and secure when connecting and fixing. The positioning rod and positioning screw in the rail locking mechanism not only play a positioning role, but also realize the precise action of the rail locking mechanism through the meshing transmission of spur gears. This design makes the rail locking process more stable and reduces the error caused by mechanical vibration. (4) The combination design of the fixing parts, positioning blocks and drive rods enables the device to generate sufficient clamping force when locking the gantry crane wheels, preventing the wheels from loosening or shifting during operation, thereby ensuring the safety and stability of the gantry crane. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the outer shell of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning rod of this utility model; Figure 4 This is a three-dimensional structural diagram of the connecting part of this utility model; Figure 5 This is a three-dimensional structural diagram of the positioning block of this utility model; Figure 6 This is a three-dimensional structural diagram of the fastener of this utility model.

[0016] In the diagram: 1. Outer shell; 2. Connecting part; 3. Positioning seat; 4. Wheel; 5. Guide rail; 6. Protective shell; 7. Positioning rod; 8. Positioning screw; 9. Spur gear one; 10. Spur gear two; 11. Rotating rod; 12. Connecting block; 13. Fixing part; 14. Positioning block; 15. Drive rod; 16. Bevel gear one; 17. Bevel gear two; 18. Threaded rod; 19. Fastening block. Detailed Implementation

[0017] 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.

[0018] Example 1: Please refer to Figure 1 - Figure 2The present invention provides the following technical solution: an automatic rail locking device for a gantry crane, comprising a housing 1, two sets of symmetrical connecting parts 2 on the outer surface of the housing 1, a guide rail 5 on the bottom surface of the housing 1, a wheel 4 on the inner side of the guide rail 5, a positioning seat 3 on the outer surface of the wheel 4, a positioning block 14 on the inner side of the positioning seat 3, and an automatic closing rail locking mechanism on the inner side of the connecting parts 2.

[0019] The locking mechanism enables automatic locking of the gantry crane wheels 4 on the track, eliminating the need for manual operation of the limit blocks and significantly improving work efficiency. When the gantry crane wheels 4 move to the predetermined position, the locking mechanism begins to operate. A servo motor connected to the rotating rod 11 serves as the drive source, driving the rotating rod 11 to rotate the spur gear 10. Since the spur gear 10 meshes with the spur gear 9, it drives the spur gear 9 and the positioning screw 8 to rotate. The rotation of the positioning screw 8 causes the positioning rod 7 to move linearly. During this movement, the positioning rod 7 interacts with the positioning seat 3 through a specific structure on its inner side, achieving the locking action and ensuring the gantry crane wheels 4 are securely locked. Locked onto the track to prevent displacement during operation and ensure operational safety, the protective shell 6 in this device effectively prevents external debris from interfering with and damaging the connecting part 2 and its internal locking mechanism, extending the service life of the equipment. The setting of the connecting block 12 and the fixing part 13 not only enhances the stability of the structure, but also realizes precise control and rapid response of the locking process through the transmission system of drive rod 15, bevel gear one 16, bevel gear two 17 and threaded rod 18. This design allows the locking mechanism to be flexibly adjusted according to the different sizes of gantry crane wheels 4, with strong adaptability. It not only improves work efficiency, but also reduces the labor intensity of operators, and has significant practical application value.

[0020] Example 2: Based on Example 1, this example solves the problems of manual operation, low efficiency, and short service life due to lateral forces in the prior art. Please refer to [link / reference]. Figure 2 - Figure 4 The document also discloses a positioning rod 7, the specific structure of which is as follows: a protective shell 6 is provided on the outer surface of the connecting part 2, a connecting block 12 is provided at one end of the connecting part 2 near the wheel 4, the rail locking mechanism includes a positioning rod 7, the positioning rod 7 is provided on the inner side of the connecting part 2, a positioning screw 8 is provided on the inner side of the positioning rod 7, a spur gear 9 is provided on the outer surface of the positioning screw 8, the spur gear 9 and the spur gear 10 are meshed and connected, and a rotating rod 11 is provided on the outer surface of the spur gear 10.

[0021] Driven by a servo motor, the positioning rod 7 plays a crucial role in the rail locking process. When the rotating rod 11 rotates under the drive of the servo motor, the second spur gear 10 rotates accordingly, which in turn drives the meshing spur gear 9 and the positioning screw 8 to rotate. The rotation of the positioning screw 8 is converted into the linear motion of the positioning rod 7. The positioning rod 7, through its end engaging with the positioning seat 3, achieves precise locking of the gantry crane wheels 4. This transmission method is not only compact in structure but also highly efficient, ensuring rapid and accurate rail locking. At the same time, the protective shell 6 further protects the rail locking mechanism from external environmental damage, improving the overall reliability and service life of the equipment. In addition, the rail locking mechanism is equipped with an infrared sensing component. This infrared sensing component works in conjunction with the servo motor. When personnel leave the gantry crane for a period of time, the infrared sensing component sends a signal to the control system. Upon receiving the signal, the control system controls the servo motor to start, thereby realizing the automatic operation of the rail locking mechanism. This prevents personnel from forgetting to lock the rails, which could cause the gantry crane to deviate and create safety hazards. This further improves the level of automation and work efficiency. Moreover, the infrared sensing component has high sensing accuracy and anti-interference ability, and can accurately identify the position of the wheels in complex working environments, ensuring the accuracy and reliability of the rail locking action. This greatly enhances the performance and practicality of the entire gantry crane automatic rail locking device.

[0022] Example 3: Based on Example 1, this example solves the safety hazard caused by unstable locking rails in the prior art. Please refer to [link / reference]. Figure 3 - Figure 6 The fastening block 19 is also disclosed, and its specific structure is as follows: a fixing member 13 is provided on the outer surface of the connecting block 12, a positioning block 14 is provided on the bottom surface of the fixing member 13, a driving rod 15 is provided on the inner side of the fixing member 13, a bevel gear 16 is provided on the outer surface of the driving rod 15, the bevel gear 16 and the bevel gear 2 17 are meshed and connected, a threaded rod 18 is provided on the surface of the bevel gear 2 17, a fastening block 19 is provided on the outer surface of the threaded rod 18, and the fastening block 19 is provided on the inner side of the fixing member 13.

[0023] By manually rotating the drive rod 15, the drive rod 15 drives the bevel gear 16 to rotate. Since the bevel gear 16 meshes with the bevel gear 17, it drives the bevel gear 17 and the threaded rod 18 to rotate. The rotation of the threaded rod 18 causes the fastening block 19 to move linearly on the inner side of the fixing part 13. The fastening block 19, through its cooperation with the positioning block 14, further enhances the locking effect on the gantry crane wheel 4, ensuring the stability of the wheel 4 on the track. This design, through multi-stage gear transmission, realizes the amplification and precise control of the locking force, improving the reliability and safety of the rail locking device. At the same time, the setting of the fastening block 19 also allows the rail locking mechanism to adapt to wheels 4 of different sizes, enhancing the versatility and flexibility of the device. In addition, the rail locking mechanism adopts a modular design, with tight connections between the components, facilitating installation and maintenance, and reducing the cost of use. Through this design of the fastening block 19, the gantry crane automatic rail locking device can operate stably in various working environments, effectively preventing the displacement of the wheel 4 and ensuring the safety and efficiency of gantry crane operations.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic rail locking device for a gantry crane, comprising a housing (1), wherein the outer surface of the housing (1) is provided with two sets of symmetrical connecting parts (2), characterized in that: The bottom surface of the outer shell (1) is provided with a guide rail (5), the inner side of the guide rail (5) is provided with a wheel (4), the outer surface of the wheel (4) is provided with a positioning seat (3), the inner side of the positioning seat (3) is provided with a positioning block (14), and the inner side of the connecting part (2) is provided with an automatic closing rail locking mechanism.

2. The automatic rail locking device for a gantry crane according to claim 1, characterized in that: The outer surface of the connecting part (2) is provided with a protective shell (6), and a connecting block (12) is provided at one end of the connecting part (2) near the wheel (4).

3. The automatic rail locking device for a gantry crane according to claim 1, characterized in that: The locking mechanism includes a positioning rod (7), which is disposed on the inner side of the connecting part (2), and a positioning screw (8) is disposed on the inner side of the positioning rod (7).

4. The automatic rail locking device for a gantry crane according to claim 3, characterized in that: The outer surface of the positioning screw (8) is provided with a spur gear one (9), the spur gear one (9) and the spur gear two (10) are meshed and connected, and the outer surface of the spur gear two (10) is provided with a rotating rod (11).

5. The automatic rail locking device for a gantry crane according to claim 2, characterized in that: The outer surface of the connecting block (12) is provided with a fixing member (13), the bottom surface of the fixing member (13) is provided with a positioning block (14), and the inner side of the fixing member (13) is provided with a driving rod (15).

6. The automatic rail locking device for a gantry crane according to claim 5, characterized in that: The outer surface of the drive rod (15) is provided with a bevel gear one (16), the bevel gear one (16) and the bevel gear two (17) are meshed and connected, and the surface of the bevel gear two (17) is provided with a threaded rod (18).

7. The automatic rail locking device for a gantry crane according to claim 6, characterized in that: The outer surface of the threaded rod (18) is provided with a fastening block (19), which is located on the inner side of the fixing member (13).

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