Portal crane rail reinforcing device

Abstract

The utility model relates to the technical field of hoist, and disclose portal crane track reinforcing device, including concrete base, the upper end surface of concrete base is opened and is used for accommodating the placement groove of portal crane track bottom, the outside of placement groove and be located concrete base's upper end surface open and have the recess, the inside of recess is inserted and is equipped with the pressing plate spare, the surface of pressing plate spare and the inner wall of concrete base all are equipped with top insertion slot and side insertion slot, the inside of top insertion slot is equipped with top fixed part, the utility model discloses through being provided with self -locking structure, adopts the double rigid lock of gear slot occlusion and hook block limit and replaces the anti -loose mode of single spring force in the prior art, effectively avoid the fatigue attenuation problem that spring long -term compression is easy to appear, through the structure form of multi -site mechanical inlay, the resistance to vibration has been strengthened, can directly block unilateral loosening to the conduction path of overall failure.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, and in particular to a rail reinforcement device for gantry cranes. Background Technology

[0002] Gantry cranes are bridge-type lifting equipment that uses two outriggers to support the bridge frame on ground rails. They have advantages such as high site utilization, wide operating range, adaptability to many scenarios, and strong versatility. They are mainly used for bulk cargo loading and unloading operations in outdoor freight yards and material yards. Since gantry cranes mostly operate in open-air environments and need to frequently withstand extreme weather loads such as high-level gusts and strong typhoons, the stability of their running rails directly determines the safe operation of the equipment. Therefore, the rails must undergo strict reinforcement to ensure the reliable operation of the equipment under dynamic loads and complex environments.

[0003] Application No. 202422592390.8 discloses a gantry crane track reinforcement device. This device improves the reliability, structural stability and adaptability of anti-loosening under complex working conditions by constructing a dual redundant protection and functionally complementary anti-loosening structure through elastic components and docking components. However, in practical applications, the elastic components rely on springs to provide preload, and the continuous vibration of the gantry crane during operation will cause the springs to be subjected to alternating pressure for a long time, which is prone to fatigue failure. After the elasticity decays, the anti-loosening effect will gradually decrease. Secondly, the docking components only adopt the threaded fit of internal threaded tube and external threaded rod. If the thread machining accuracy is insufficient or it is subjected to vibration and impact, the thread is prone to loosening. Moreover, this structure lacks independent protection design. If the connection on one side is loose, it is easy to trigger a chain failure on the other side, which is difficult to adapt to the long-term stability requirements of the equipment under high-frequency dynamic load. Utility Model Content

[0004] This utility model proposes a gantry crane track reinforcement device to solve the problems of spring fatigue failure due to long-term compression, threaded connection loosening, and unilateral loosening leading to chain failure in existing gantry crane track reinforcement devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gantry crane track reinforcement device, comprising a concrete base, wherein the upper end face of the concrete base is provided with a placement groove for accommodating the bottom of the gantry crane track, and an embedding groove is provided on the outer side of the placement groove and on the upper end face of the concrete base, wherein a pressure plate is inserted into the embedding groove, and a top slot and a side slot are provided on the surface of the pressure plate and the inner wall of the concrete base, wherein a top fixing member is provided inside the top slot, and a side fixing member is provided inside the side slot, wherein a self-locking structure is provided at the connection between the side fixing member and the top fixing member and the concrete base, for reliably locking the top fixing member and the side fixing member to the concrete base, and auxiliary components are also provided on the side fixing member and the top fixing member for secondary tightening after the top fixing member and the side fixing member are connected.

[0006] Preferably, the top fixing member includes a top insert rod inserted into the top slot, and a first end block is connected to one end of the top insert rod located on the outside of the concrete base. The side fixing member includes a side insert rod inserted into the side slot, and a second end block is connected to one end of the side insert rod located on the outside of the concrete base.

[0007] Preferably, the self-locking structure includes multiple fixed seats that are fixedly connected to the inner surface of the grooves reserved on the side walls of the top insert rod and the side insert rod. Each of the multiple fixed seats has a movable block on one side. The multiple movable blocks are rotatably connected to the inner surface of the grooves through shaft blocks. A connecting spring is connected between the fixed seat and the movable block. A toothed block is fixedly connected to the side wall of the movable block away from the fixed seat.

[0008] Preferably, the self-locking structure further includes a connecting seat located on the side of the movable block away from the fixed seat. Multiple connecting seats are fixedly connected to the inner surface of the top slot and the side slot. The connecting seat has a toothed groove on the side wall near the movable block that cooperates with the toothed block.

[0009] Preferably, the outer wall of the movable block is fixedly connected with a protrusion, and an elastic piece with a hook is connected to a pre-reserved groove on the surface of the fixed seat by screws, with one end of the hook of the elastic piece located obliquely above the protrusion.

[0010] Preferably, the auxiliary component includes multiple threaded seats that are fixedly connected to the opening ends of the top slot and the side slot. Each of the multiple threaded seats has a threaded block threaded inside. The multiple threaded blocks are fixedly connected to the first end block and the second end block respectively, and a rotating block is fixedly connected to the end of each of the multiple threaded blocks away from the first end block and the second end block respectively.

[0011] Preferably, the auxiliary component further includes multiple movable slots, each formed on the inner wall of the top insert and the side insert, and each of the multiple movable slots is connected to an elastic connecting block. The free end of the elastic connecting block is rotatably connected to the threaded block through a rotating block.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: (1) This application is equipped with a self-locking structure and adopts a dual rigid locking design of toothed meshing and hook block limiting, which replaces the single spring force anti-loosening method in the prior art, effectively avoiding the fatigue attenuation problem that springs are prone to cause during long-term compression; through the multi-part mechanical interlocking structure, the resistance to vibration is strengthened, and the transmission path from unilateral loosening to overall failure can be directly blocked, improving the anti-loosening reliability of the connection between the top fixing part, the side fixing part and the concrete base, and adapting to the use requirements of complex vibration conditions of gantry cranes; (2) This application is equipped with auxiliary components, which together with the self-locking structure form a collaborative protection mechanism of mechanical locking and thread pre-tightening. On the one hand, the threaded screwing structure fills the small gap that may exist in a single mechanical locking, avoiding the risk of loosening caused by insufficient precision or vibration in existing single threaded connections. On the other hand, under the dynamic load of the gantry crane, it further enhances the overall stability of the connection between the top fixing part, the side fixing part and the concrete base, ensuring the long-term reliability of the device under high-frequency vibration conditions. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the top fixing member and the side fixing member of this utility model; Figure 4 This is an enlarged schematic diagram of the connection between the side insertion rod and the side slot of this utility model; Figure 5 This is a cross-sectional view of the side fixing component of this utility model; Figure 6 This is an enlarged schematic diagram of the self-locking structure of this utility model; Figure 7 This is an enlarged schematic diagram of the auxiliary components of this utility model; In the diagram: 1. Concrete base; 2. Placement groove; 3. Embedded groove; 4. Pressure plate; 5. Top slot; 6. Side slot; 7. Top fixing component; 71. Top insert rod; 72. First end block; 8. Side fixing component; 81. Side insert rod; 82. Second end block; 9. Self-locking structure; 91. Fixed seat; 92. Movable block; 93. Connecting spring; 94. Toothed block; 95. Connecting seat; 96. Toothed groove; 97. Protrusion; 98. Elastic sheet; 10. Auxiliary component; 101. Threaded seat; 102. Threaded block; 103. Movable groove; 104. Elastic connecting block; 105. Rotating block. Detailed Implementation

[0015] 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.

[0016] like Figures 1-4 As shown, the gantry crane track reinforcement device provided by this utility model includes a concrete base 1. The upper surface of the concrete base 1 is provided with a placement groove 2 for accommodating the bottom of the gantry crane track. The outer side of the placement groove 2 and located on the upper surface of the concrete base 1 is provided with an embedding groove 3. A pressure plate 4 is inserted into the embedding groove 3. The surface of the pressure plate 4 and the inner wall of the concrete base 1 are provided with a top slot 5 and a side slot 6. The top slot 5 is provided with a top fixing member 7, and the side slot 6 is provided with a side fixing member 8. The top fixing member 7 includes a top insert rod 71 inserted into the top slot 5. One end of the top insert rod 71 and located on the outer side of the concrete base 1 is connected to a first end block 72. The side fixing member 8 includes a side insert rod 81 inserted into the side slot 6. One end of the side insert rod 81 and located on the outer side of the concrete base 1 is connected to a second end block 82.

[0017] Specifically, firstly, the bottom of the gantry crane rail is embedded in the placement groove 2 of the concrete base 1 to achieve initial positioning of the rail in the front-back and left-right directions. Then, several pressure plate components 4 are arranged vertically downwards, with one side of each pressure plate component 4 welded and fixed to the gantry crane rail, and the other side inserted into the pre-set groove 3 of the concrete base 1 to further limit the vertical and horizontal displacement of the bottom of the rail. Finally, holding the first end block 72 of the top fixing component 7 and the second end block 82 of the side fixing component 8 respectively, the top insertion rod 71 of the top fixing component 7 is inserted into the top slot 5 through which the pressure plate component 4 and the concrete base 1 are connected. At the same time, the side insertion rod 81 of the side fixing component 8 is inserted into the side slot 6 through which the pressure plate component 4 and the concrete base 1 are connected. Through the coordinated limiting effect of the top fixing component 7 and the side fixing component 8, the pressure plate component 4 is firmly locked onto the concrete base 1, thus achieving multiple fixation and stable installation of the gantry crane rail.

[0018] In addition, the pressure plate 4 adopts a composite structure of carbon fiber composite material and metal, which has the advantages of high strength, lightweight and corrosion resistance. It can reduce the overall weight to reduce the load on the concrete base 1 and improve the corrosion resistance. Furthermore, the steel fiber is incorporated into the concrete base 1 to enhance its crack resistance and wear resistance and extend its service life.

[0019] Among them, see Figures 2-6 As shown, the connection between the side fixing member 8 and the top fixing member 7 and the concrete base 1 is provided with a self-locking structure 9, which is used to achieve reliable self-locking between the top fixing member 7, the side fixing member 8 and the concrete base 1.

[0020] The self-locking structure 9 includes multiple fixed seats 91, each fixedly connected to the inner surface of a groove pre-cut in the side wall of the top insert rod 71 and the side insert rod 81. Each fixed seat 91 has a movable block 92 on one side. The movable blocks 92 are rotatably connected to the inner surface of the groove through a shaft block. A connecting spring 93 connects the fixed seat 91 and the movable block 92. A toothed block 94 is fixedly connected to the side wall of the movable block 92 away from the fixed seat 91.

[0021] The self-locking structure 9 also includes a connecting seat 95 located on the side of the movable block 92 away from the fixed seat 91. Multiple connecting seats 95 are fixedly connected to the inner surface of the top slot 5 and the side slot 6. The connecting seat 95 has a toothed groove 96 on the side wall near the movable block 92 that cooperates with the toothed block 94.

[0022] The outer wall of the movable block 92 is fixedly connected to a protrusion 97. The surface of the fixed seat 91 has a pre-reserved slot in which an elastic piece 98 with a hook is connected by screws. One end of the hook of the elastic piece 98 is located diagonally above the protrusion 97.

[0023] Through the above technical solution: When the top fixing member 7 or the side fixing member 8 is inserted, the movable block 92 of the toothed block 94 is driven by the elastic force of the connecting spring 93 to slide into the tooth groove 96 along the connecting seat 95. During the insertion process, the movable block 92 is tilted, and the hook block connected by the elastic plate 98 is against one side of the protrusion 97. After the insertion is in place, the toothed block 94 is engaged in the tooth groove 96, and the hook block is simultaneously engaged on the upper end of the protrusion 97. This structure replaces the single spring force with the double rigid locking of the tooth groove 96 engagement and the hook block limit. It avoids the fatigue attenuation problem of the spring under long-term pressure, and strengthens the vibration resistance through the mechanical engagement of multiple parts. It can directly block the transmission of unilateral loosening to overall failure, and significantly improves the anti-loosening reliability of the connection between the top fixing member 7, the side fixing member 8 and the concrete base 1.

[0024] See Figure 1 , Figure 5 and Figure 7 As shown, both the side fastener 8 and the top fastener 7 are provided with auxiliary components 10, which are used to perform secondary fastening after the top fastener 7 and the side fastener 8 are connected.

[0025] The auxiliary component 10 includes a plurality of threaded seats 101 that are fixedly connected to the opening ends of the top slot 5 and the side slot 6. Each of the plurality of threaded seats 101 has a threaded block 102 threadedly connected inside. The plurality of threaded blocks 102 are fixedly connected to the first end block 72 and the second end block 82 respectively, and a rotating block 105 is fixedly connected to the end of the plurality of threaded blocks 102 away from the first end block 72 and the second end block 82 respectively.

[0026] The auxiliary component 10 also includes multiple movable slots 103, each opened on the inner wall of the top insert 71 and the side insert 81. Each movable slot 103 is connected to an elastic connecting block 104. The free end of the elastic connecting block 104 is rotatably connected to the threaded block 102 through a rotating block 105.

[0027] Through the above technical solution: After insertion, hold the top fixing piece 7 or the side fixing piece 8 and press it towards the concrete base 1. With the help of the elasticity of the elastic connecting block 104, the end block moves closer to the concrete base 1. Simultaneously rotate the end block to screw the threaded block 102 into the threaded seat 101 to achieve secondary tightening. This component and the self-locking structure 9 form a synergistic protection of mechanical locking and thread pre-tightening: on the one hand, the thread tightening fills the small gap of the single mechanical locking; on the other hand, under the dynamic load of the gantry crane, it further enhances the overall stability of the connection, which not only avoids the risk of loosening of the single threaded connection, but also adapts to the long-term use requirements of the equipment under high-frequency vibration conditions.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A gantry crane track reinforcement device, comprising a concrete base (1), characterized in that: The upper surface of the concrete base (1) is provided with a placement groove (2) for accommodating the bottom of the gantry crane rail. The outer side of the placement groove (2) and the upper surface of the concrete base (1) are provided with a recess (3). A pressure plate (4) is inserted into the recess (3). The surface of the pressure plate (4) and the inner wall of the concrete base (1) are provided with a top slot (5) and a side slot (6). The top slot (5) is provided with a top fixing member (7). The side slot (6) is provided with a side fixing member (8). The connection between the side fixing member (8) and the top fixing member (7) and the concrete base (1) is provided with a self-locking structure (9) to achieve self-locking between the top fixing member (7), the side fixing member (8) and the concrete base (1). The side fixing member (8) and the top fixing member (7) are also provided with auxiliary components (10) to perform secondary fastening after the top fixing member (7) and the side fixing member (8) are connected.

2. The gantry crane track reinforcement device according to claim 1, characterized in that: The top fixing member (7) includes a top insert (71) inserted into the top slot (5), and a first end block (72) is connected to one end of the top insert (71) located on the outside of the concrete base (1). The side fixing member (8) includes a side insert (81) inserted into the side slot (6), and a second end block (82) is connected to one end of the side insert (81) located on the outside of the concrete base (1).

3. The gantry crane track reinforcement device according to claim 2, characterized in that: The self-locking structure (9) includes multiple fixed seats (91) that are fixedly connected to the inner wall of the groove reserved on the side wall of the top insert (71) and the side insert (81). Each of the multiple fixed seats (91) has a movable block (92) on one side. The multiple movable blocks (92) are rotatably connected to the inner wall of the groove through a shaft block. A connecting spring (93) is connected between the fixed seat (91) and the movable block (92). A toothed block (94) is fixedly connected to the side wall of the movable block (92) away from the fixed seat (91).

4. The gantry crane track reinforcement device according to claim 3, characterized in that: The self-locking structure (9) also includes a connecting seat (95) located on the side of the movable block (92) away from the fixed seat (91). Multiple connecting seats (95) are fixedly connected to the inner surface of the top slot (5) and the side slot (6). The connecting seat (95) has a toothed groove (96) on the side wall near the movable block (92) that is used to cooperate with the toothed block (94).

5. The gantry crane track reinforcement device according to claim 4, characterized in that: The outer wall of the movable block (92) is fixedly connected to a protrusion (97), and an elastic piece (98) with a hook block is connected to the pre-reserved slot on the surface of the fixed seat (91) by screws. One end of the hook block of the elastic piece (98) is located diagonally above the protrusion (97).

6. The gantry crane track reinforcement device according to claim 2, characterized in that: The auxiliary component (10) includes a plurality of threaded seats (101) that are fixedly connected to the opening ends of the top slot (5) and the side slot (6). Each of the plurality of threaded seats (101) has a threaded block (102) threaded inside. The plurality of threaded blocks (102) are fixedly connected to the first end block (72) and the second end block (82) respectively. A rotating block (105) is fixedly connected to one end of the plurality of threaded blocks (102) away from the first end block (72) and the second end block (82).

7. The gantry crane track reinforcement device according to claim 6, characterized in that: The auxiliary component (10) also includes multiple movable slots (103) that are opened on the inner walls of the top insert (71) and the side insert (81). Each of the multiple movable slots (103) is connected to an elastic connecting block (104). The free end of the elastic connecting block (104) is rotatably connected to the threaded block (102) through a rotating block (105).

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