Rail clamping device with buffering and anti-collision functions

Abstract

The utility model relates to the technical field of rail clamping devices, in particular to a rail clamping device with buffering and anti-collision functions, which comprises a base, a protective cover and a clamping mechanism, the clamping mechanism comprises a clamp, a rotating arm is arranged in the middle of the clamp, the rotating arm of the clamp is hinged with each other, a pressing oil cylinder is arranged at the upper end of the clamp, and a clamping spring is arranged at the lower end of the rotating arm. A fixed clamping jaw is arranged at the tail end of the clamping pincers, a buffering mechanism is arranged at the side end of the base and comprises a mounting base, a buffering guide column and a buffering spring, a guide wheel is rotationally arranged at the lower end of each connecting plate, and a connecting device is arranged on the connecting plate on one side. When encountering an obstacle, the guide wheel firstly makes contact with the obstacle, the buffer mechanism is activated, the connecting plate slides upwards under the action of the buffer spring, impact force is effectively relieved, and the damping device additionally arranged on the buffer spring further absorbs impact, keeps a main machine stable and prevents the main machine from jumping out of the clamp seat due to impact.

Description

Technical Field

[0001] The utility model relates to the technical field of rail clamps, and relates to a rail clamp with a buffer and anti-collision function. Background Art

[0002] In the field of lifting machinery, especially gantry cranes for outdoor operations, their safety is of crucial importance. Traditional rail clamps, as important safety devices to prevent cranes from sliding along the rails, achieve fixation by clamping the two sides of the rail head with clamps. However, these devices have some limitations in practical applications. For example, they may have insufficient clamping force, resulting in braking failure when stressed; when encountering obstacles, the main body may jump out of the clamp seat due to the impact force, causing potential safety hazards. In addition, the structural design of existing rail clamps has defects, and the moment between the jaws and the clamps is relatively large, affecting the clamping efficiency and stability. These problems highlight the urgent need to improve the performance of rail clamps. Summary of the Utility Model

[0003] The utility model provides a rail clamp with a buffer and anti-collision function to solve the problems of the prior art.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A rail clamp with a buffer and anti-collision function, comprising: a base, a protective cover arranged outside the base, and a clamping mechanism arranged inside the base. The clamping mechanism includes two groups of clamping pliers arranged symmetrically. A rotating arm is arranged in the middle of the two groups of clamping pliers. The rotating arms of the two groups of clamping pliers are hinged to each other, and a hydraulic cylinder is arranged at the upper end of the clamping pliers. A clamping spring is arranged at the lower end of the rotating arm, and the lower end of the clamping spring abuts against the base. A pushing block is rotatably arranged at the end of the clamping pliers. A buffer mechanism is arranged at the side end of the base. The buffer mechanism includes a mounting seat arranged inside the protective cover. A buffer guiding column is arranged at the upper end of the mounting seat. A connecting plate is slidably arranged on the buffer guiding column, and a limiting component is arranged at the upper end thereof. A buffer spring is sleeved on the buffer guiding column. One end of the buffer spring abuts against the lower end of the limiting component, and the other end abuts against the upper surface of the connecting plate. A guiding wheel is rotatably arranged at the lower end of the connecting plate. A connecting device is arranged on one side of the connecting plate.

[0005] Further improvement, an installation groove is arranged inside the pushing block, and a friction plate is embedded in the installation groove.

[0006] Further improvement, through holes are arranged through the friction plate, and the friction plate is fixedly arranged in the installation groove by bolts, and the bolts are arranged in the through holes.

[0007] Further improvement, limiting through holes are arranged through the upper ends of the two groups of clamping pliers, and guiding rods are slidably arranged in the limiting through holes.

[0008] For further improvement, two sets of buffer mechanisms are symmetrically arranged.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1. The rail clamp of the utility model provides an efficient, safe and reliable operation experience through a series of carefully designed features. The clamping mechanism consists of two sets of clamping pliers arranged symmetrically, ensuring the balance and stability of clamping. The middle connection of the rotating arm and the upper-end drive of the hydraulic cylinder achieve precise control of the clamping action. The clamping spring provides a stable clamping force at the lower end of the clamping pliers, while the pushing block ensures a firm grip on the rail, preventing sliding or detachment during operation.

[0011] 2. The protective cover design of the utility model not only protects the base and clamping mechanism of the rail clamp from environmental damage, but also its buffer mechanism at the side end, which consists of a mounting seat, buffer guide posts, a connecting plate, guide wheels and buffer springs, provides effective anti-collision protection for the rail clamp. When the rail clamp encounters an obstacle, the guide wheels first come into contact with the obstacle, activating the buffer mechanism. The connecting plate slides upward under the action of the buffer springs, effectively alleviating the impact force. The damping device installed on the buffer springs further absorbs the impact, keeping the main unit stable and preventing it from jumping out of the clamp seat due to impact.

[0012] 3. The clamping spring design of the utility model ensures that the clamping pliers can maintain the clamping state even under uneven forces, thus preventing braking failure and enhancing the safety of the rail clamp. The guide wheels at the lower end of the connecting plate and the connecting device on one side ensure the smooth movement of the rail clamp along the rail and its connection with other equipment, improving the flexibility and efficiency of operation. Brief Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the utility model;

[0014] Figure 2 is a partial structural diagram of the utility model;

[0015] Figure 3 is a layout structural diagram of the utility model from another perspective;

[0016] Figure 4 is a side view of the partial structure of the utility model;

[0017] Figure 5 is a layout structural diagram of the utility model from another perspective;

[0018] Figure 6 is the utility model Figure 1 an enlarged view of the partial A in the utility model.

[0019] In the figure, 1 is the base; 2 is the clamping mechanism; 21 is the clamping pliers, 211 is the rotating arm, 212 is the guiding rod, 213 is the limiting through hole; 22 is the hydraulic cylinder; 23 is the clamping spring; 24 is the pushing block, 241 is the friction plate, 2411 is the through hole; 3 is the buffer mechanism, 31 is the mounting seat, 32 is the buffer guiding column, 321 is the limiting component, 33 is the connecting plate, 34 is the buffer spring, 35 is the guiding wheel; 4 is the connecting device; 5 is the protective cover. Detailed implementation mode

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0021] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0022] The following combines the embodiments and the attached Figures 1 to 6 , and further elaborates on the technical solutions of the present invention.

[0023] Embodiment 1

[0024] A rail clamp with a buffer and anti-collision function, comprising: a base 1, a protective cover 5 arranged outside the base 1, and a clamping mechanism 2 arranged inside the base. The clamping mechanism 2 includes two groups of clamping pliers 21 symmetrically arranged. A rotating arm 221 is arranged in the middle of the two groups of clamping pliers 21. The rotating arms 211 of the two groups of clamping pliers 21 are hinged to each other, and a hydraulic cylinder 22 is arranged at the upper end of the clamping pliers 21. A clamping spring 23 is arranged at the lower end of the rotating arm 211. The lower end of the clamping spring 23 abuts against the base 1. A pushing block 24 is arranged at the end of the clamping pliers 21. A buffer mechanism 3 is arranged at the side end of the base 1. The buffer mechanism 3 includes a mounting seat 31 arranged inside the protective cover 5. A buffer guiding column 32 is arranged at the upper end of the mounting seat 31. A connecting plate 33 is slidably arranged on the buffer guiding column 32, and a limiting component 321 is arranged at its upper end. A buffer spring 34 is sleeved on the buffer guiding column 32. One end of the buffer spring 34 abuts against the lower end of the limiting component 321, and the other end abuts against the upper surface of the connecting plate 33. A guiding wheel 35 is rotatably arranged at the lower end of the connecting plate 33. A connecting device 4 is arranged on one side of the connecting plate 33.

[0025] As Figures 1 to 6 shown, the utility model includes a base 1 and a clamping mechanism 2. The clamping mechanism 2 is composed of two groups of clamping pliers 21 symmetrically arranged, with a rotating arm 221 connected in the middle, driven by a hydraulic cylinder 22 at the upper end, and a stable clamping force provided by a clamping spring 23 at the lower end. The pushing block 24 at the end of the clamping pliers 21 ensures a firm clamping of the track.

[0026] The buffer mechanism 3 at the side end of the protective cover 5 is composed of a mounting seat 31, a buffer guiding column 32, a connecting plate 33, a guiding wheel 35 and a buffer spring 34, which can effectively absorb the impact force and prevent the main machine from jumping out of the clamp seat due to impact. The guiding wheel 35 at the lower end of the connecting plate 33 and the connecting device 4 on one side ensure the smooth movement of the rail clamp along the track and its connection with other equipment.

[0027] During the operation, when the rail clamp encounters an obstacle, the guiding wheel 35 first contacts the obstacle, activating the buffer mechanism 3. The connecting plate 33 slides upward under the action of the buffer spring 34 to relieve the impact force. At the same time, a damper is installed on the buffer spring 34 to absorb the impact and keep the main machine stable. At the same time, the clamping spring 23 ensures that the clamping pliers 21 can maintain the clamping state even under uneven force, preventing the braking failure.

[0028] To ensure the long-term stable operation of the rail clamp, regular maintenance inspections are necessary, including checking the state of the clamping spring 23 and the buffer spring 33, as well as evaluating the wear of the pushing block 24 and the connecting device 4, and replacing them if necessary.

[0029] The design of the pushing block 24 effectively reduces the torque and improves the stability and reliability of the device.

[0030] As a further preferred embodiment, an installation groove is provided inside the pushing block 24, and a friction plate 241 is embedded in the installation groove.

[0031] Specifically, by providing an installation groove inside the pushing block 24 and embedding the friction plate 241 in the installation groove, the direct wear of the pushing block 24 during use is effectively avoided, and the service life of the rail clamp is extended. Preferably, the embedding method can be mechanical fixation, such as using screws, buckles or welding, or chemical bonding.

[0032] As a further preferred embodiment, through holes 2411 are provided through the friction plate 241, and the friction plate 241 is fixedly arranged in the installation groove by bolts, and the bolts are arranged in the through holes 2411.

[0033] Specifically, a highly wear-resistant friction plate 241 is embedded in the accurately designed installation groove inside the pushing block 24. Through holes 2411 are provided on the friction plate for the bolts to pass through and be fixed. By tightening the bolts, the friction plate 241 is firmly fixed in the installation groove, providing stable friction force to achieve the stable clamping of the rail clamp.

[0034] For the convenience of replacing and maintaining the friction plate 241, the design of the through holes 2411 allows for quick disassembly and installation. When the friction plate is worn or its performance deteriorates, only need to loosen the bolts, then the friction plate 241 can be easily taken out, and a new friction plate can be installed in the same way, and the bolts are tightened again. The quick replacement design improves the maintenance efficiency and reduces the maintenance time.

[0035] Preferably, auxiliary guiding structures, such as protrusions or grooves, may also be designed in the installation groove to ensure the correct positioning of the friction plate, simplifying the installation process. In addition, anti-loosening measures, such as lock nuts, spring washers or thread locking adhesives, are used to prevent the bolts from loosening during use, further improving the reliability of the rail clamp.

[0036] As a further preferred embodiment, limiting through holes 213 are provided through the upper ends of the two groups of clamping pliers 21, and guiding rods 212 are slidably arranged in the limiting through holes 213.

[0037] Specifically, when the hydraulic cylinder 22 drives the clamping pliers 21 to perform a closing action, the guide rod 212 slides freely within the limit through-hole 213, and at the same time its position also limits the maximum opening and closing angle of the clamping pliers. This design not only guides the clamping pliers 21 to move accurately along a predetermined trajectory, preventing the clamping pliers 21 from opening or closing excessively, but also, through the sliding of the guide rod 212, realizes effective control and precise positioning of the movement of the clamping pliers 21. This synergistic effect improves the operation accuracy of the rail clamp and at the same time enhances the stability and reliability of its structure.

[0038] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art in this technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should fall within the protection scope determined by the claims.

Claims

1. A rail clamp with a buffer and anti-collision function, comprising: A base (1), a protective cover (5) arranged outside the base (1), and a clamping mechanism (2) arranged inside the base. It is characterized in that the clamping mechanism (2) includes two groups of clamping pliers (21) arranged symmetrically. A rotating arm (211) is arranged in the middle of the two groups of clamping pliers (21). The rotating arms (211) of the two groups of clamping pliers (21) are hinged to each other, and a hydraulic cylinder (22) is arranged at the upper end of the clamping pliers (21). A clamping spring (23) is arranged at the lower end of the rotating arm (211). The lower end of the clamping spring (23) abuts against the base (1). A pushing block (24) is rotatably arranged at the end of the clamping pliers (21). A buffer mechanism (3) is arranged at the side end of the base (1). The buffer mechanism (3) includes a mounting seat (31) arranged inside the protective cover (5). A buffer guiding column (32) is arranged at the upper end of the mounting seat (31). A connecting plate (33) is slidably arranged on the buffer guiding column (32), and a limiting component (321) is arranged at its upper end. A buffer spring (34) is sleeved on the buffer guiding column (32). One end of the buffer spring (34) abuts against the lower end of the limiting component (321), and the other end abuts against the upper surface of the connecting plate (33). A guiding wheel (35) is rotatably arranged at the lower end of the connecting plate (33). A connecting device (4) is arranged on one of the connecting plates (33).

2. The rail clip with a buffer and anti-collision function according to claim 1, characterized in that, An installation groove is arranged inside the pushing block (24), and a friction plate (241) is embedded in the installation groove.

3. The rail clip with a buffer and anti-collision function according to claim 2, wherein, Through holes (2411) are arranged through the friction plate (241). The friction plate (241) is fixedly arranged in the installation groove by bolts, and the bolts are arranged in the through holes (2411).

4. The rail clamp with a buffer and anti-collision function according to claim 1, characterized in that, Limiting through holes (213) are arranged through the upper ends of the two groups of clamping pliers (21), and guide rods (212) are slidably arranged in the limiting through holes (213).

5. The rail clip with a buffer and anti-collision function according to claim 1, characterized in that, Two groups of the buffer mechanisms (3) are arranged symmetrically.

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