Windproof rail clamping device of light gantry crane

Abstract

The utility model discloses a windproof rail clamping device of a light gantry crane. The in-orbit translation direction of the gantry crane is defined as the Y direction, the vertical connecting line direction of a plurality of rails is defined as the X direction, and the height direction is defined as the Z direction; the rail clamping devices are welded and fixed to the two ends of a gantry crane bottom beam in the Y direction. Each rail clamping device comprises an outer protection shell with the U-shaped transverse section. The upper part of the outer protective shell slides on a YZ vertical plane and is inserted with a constraint rod in an X direction in a penetrating manner, and the lower part of the outer protective shell is connected with a plurality of clamping arms which are clamped and positioned on the two sides of the track on the YZ vertical plane in an overturning manner; a clamping screw is connected to the middles of the clamping arms in a penetrating mode, and the clamping screw adjusts the X-direction interval of the clamping arms and provides clamping force for the clamping arms on the two sides of a rail. The rail clamping device can achieve convenient storage, limit and restrain the maximum displacement of the clamping arms in the front-back direction when the clamping arms are twisted on the rail, and is simple in structure and easy to achieve.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, specifically to a windproof rail clamp for a lightweight gantry crane. Background Technology

[0002] Lightweight gantry cranes operating in open, spacious locations are susceptible to lateral movement due to strong winds. Therefore, windproof devices must be installed when the gantry crane is not in use to prevent it from being blown away by strong winds, causing accidents such as collisions, derailments, and overturning.

[0003] The drawback of the existing rail clamp is that:

[0004] 1. Insufficient clamping stability: When clamping the track, only the two sides of the track are clamped and force is applied, and the horizontal plane of the track cannot be limited to the extreme position. As a result, when the wind direction changes, the gantry crane will still sway, causing the clamping parts to twist on both sides of the track. This clamping method is very easy to loosen.

[0005] 2. Poor structural adaptability, making it difficult to achieve convenient storage and quick installation.

[0006] 3. Limited wind resistance: Existing devices are prone to insufficient clamping force and weak overall anti-overturning ability in strong wind environments due to insufficient structural rigidity or too small clamping area.

[0007] Therefore, how to design a windproof rail clamp for a lightweight gantry crane to solve the above-mentioned technical problems has become an urgent technical problem for those in the field. Utility Model Content

[0008] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a windproof rail clamp for a lightweight gantry crane. This rail clamp can be easily stored and limits the maximum forward and backward displacement of the clamping arm when it twists on the track. It also has a simple structure and is easy to implement.

[0009] To address the aforementioned problems, this utility model provides a windproof rail clamp for a lightweight gantry crane. The gantry crane's on-rail translation direction is defined as the Y-axis, the vertical connection direction of multiple rails as the X-axis, and the height direction as the Z-axis. The rail clamp is welded and fixed to both ends of the gantry crane's bottom beam in the Y-axis direction. The rail clamp includes an outer shell with a U-shaped transverse cross-section. The upper part of the outer shell slides on the YZ vertical plane and has a constraint rod inserted through it in the X-axis direction. The lower part of the outer shell flips on the YZ vertical plane and is connected to multiple clamping arms that clamp and position on both sides of the rails. A clamping screw is penetrated and connected to the middle of each clamping arm, and the clamping screw adjusts the X-axis spacing of the clamping arms and provides clamping force on both sides of the rails.

[0010] Preferably, a pin is fixedly connected to the lower part of the outer shell in the X direction, and the middle section of the pin is flipped and hooked to multiple clamping arms on the YZ vertical plane; the clamping arms include main arms and auxiliary arms, wherein the lower part of the main arm has a sleeve hole that is X-directed and has a diameter larger than the diameter of the pin, and the auxiliary arms are stacked and welded to the back surface of the upper part of the multiple main arms.

[0011] Preferably, the free end of the auxiliary arm has a hook that bends into the object, which engages with the end face of the main arm to hook onto both sides of the top plane of the "I"-shaped track; the stacked weld of the main arm and the auxiliary arm has an X-shaped penetrating clamping screw.

[0012] Preferably, a clearance groove is provided in the middle of the outer shell, which provides clearance for the manual flipping clamp arm.

[0013] Preferably, the upper part of the outer shell is provided with a constraint elongated hole that runs through in the X direction. The height of the constraint elongated hole on the side closer to the gantry crane is higher than the height of the constraint elongated hole on the side farther away from the gantry crane. The constraint elongated hole is inserted into the constraint rod in the X direction and slides obliquely on the YZ vertical plane.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] This utility model discloses a windproof rail clamp for a lightweight gantry crane. The rail clamp is fixed to both ends of the gantry crane's bottom beam via an outer protective shell. The outer shell provides rotational support for the clamping arms and provides sliding limits for the constraint rods. The constraint rods slide within a constraint elongated hole for storage constraint when the clamping arms are not in use. In use, the overlapping portion of the main arm and auxiliary arm is connected to a clamping screw to shorten the distance between the two clamping arms and provide clamping force. The overlapping portion of the main arm and auxiliary arm has high strength and strong structural load-bearing capacity. Finally, the hook on the auxiliary arm and the end face of the main arm constrain the rotation angle of the entire clamping arm, preventing excessive rotation of the clamping arms due to strong winds and thus preventing them from loosening from the rails. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention (partial enlargement);

[0018] Figure 2 This is a front view of the utility model (clamp arm in storage position);

[0019] Figure 3 This is a side view of the present invention (clamping arm in storage position);

[0020] Figure 4 This is a front view of the present invention (clamping arm holding the track posture);

[0021] Figure 5 This is a side view of the present invention (clamping arm holding the track posture);

[0022] As shown in the figure: 1-Outer shell; 2-Constraint elongated hole; 3-Constraint rod; 4-Clamping arm; 5-Clamping screw; 6-Allowing arc groove; 7-Pin; 8-Sleeve hole; 9-Hook; 10-Secondary arm; 11-Main arm; 12-Railway. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Combination Figures 1-5 This utility model discloses a windproof rail clamp for a lightweight gantry crane. The direction of the gantry crane's on-rail translation is defined as the Y-axis, the vertical connection direction of multiple rails 12 is defined as the X-axis, and the height direction is defined as the Z-axis. The rail clamp is welded and fixed to both ends of the bottom beam of the gantry crane in the Y-axis direction. The rail clamp includes an outer shell 1 with a U-shaped transverse cross section. The upper part of the outer shell slides on the YZ vertical plane and is connected to a constraint rod 3 through it in the X-axis direction. The lower part of the outer shell flips on the YZ vertical plane and is connected to multiple clamping arms 4 that are positioned on both sides of the rail. The middle of the multiple clamping arms is connected to a clamping screw 5, which adjusts the X-axis spacing of the multiple clamping arms and provides clamping force on both sides of the rail.

[0027] Preferably, a pin 7 is fixedly connected to the lower part of the outer shell in the X direction. The middle section of the pin is flipped and hooked onto multiple clamping arms in the YZ vertical plane. The clamping arms include a main arm 11 and a secondary arm 10. The lower part of the main arm has a sleeve hole 8 that is X-directed and has a diameter larger than the pin diameter. The secondary arms are stacked and welded to the back surface of the upper part of the main arms.

[0028] Preferably, the free end of the auxiliary arm has a hook 9 for bending the target, which is engaged with the end face of the main arm to hook onto both sides of the top plane of the "I"-shaped track; the stacked weld of the main arm and the auxiliary arm has an X-shaped penetrating clamping screw.

[0029] Preferably, a clearance groove 6 is provided in the middle of the outer shell, which provides clearance for the manual flipping clamp arm.

[0030] Preferably, the upper part of the outer shell is provided with a constraint elongated hole 2 that runs through in the X direction. The height of the constraint elongated hole on the side closer to the gantry crane is higher than the height of the constraint elongated hole on the side farther away from the gantry crane. The constraint elongated hole is inserted into the constraint rod in the X direction and slides obliquely on the YZ vertical plane.

[0031] To more clearly illustrate the specific embodiments of this utility model, several examples are provided below:

[0032] Rail clamp storage posture as Figure 2 and Figure 3 As shown, first, manually lift the constraint rod upward within the constraint hole, then manually flip the clamping arm upward into the outer casing, and finally release the support of the constraint rod, allowing it to descend by its own weight to the lowest point of the constraint hole. This position will block the downward flipping of the clamping arm, thereby achieving quick and safe storage of the clamping arm and preventing the clamping arm from contacting the track during use.

[0033] Clamping arm holding track posture as follows Figure 4 and Figure 5 As shown, the hooks of the auxiliary arm clamp onto both sides of the middle section of the track and hook onto the bottom surfaces of the two sides of the upper transverse structure of the track. When the auxiliary arm flips, the ends of the main arm will press downwards against the top surfaces of the two sides of the upper transverse structure of the track, thereby limiting the flipping angle of the clamping arm. It should be noted that the multiple clamping arms do not necessarily have to maintain a parallel posture when clamped. Because the diameter of the sleeve hole is larger than the diameter of the pin, a stable double-triangular support structure will be formed when the clamping screw tightens the spacing between the multiple clamping arms. One triangle is formed by the pin and two main arms on its three sides, and the other triangle is formed by the clamping screw and two auxiliary arms on its three sides, thus forming a stable track clamping mechanism and improving structural strength.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A wind-proof rail clamp for a light gantry crane, defining a rail translation direction of the gantry crane as Y direction, a vertical line direction of a plurality of rails as X direction, and a height direction as Z direction; characterized in that: The rail clamp is welded and fixed at the Y direction two ends of the gantry crane bottom beam, the rail clamp comprises an outer shell with U-shaped cross section; the upper part of the outer shell is slidably connected with a constraint rod in the YZ vertical plane and penetrates the X direction, and the lower part of the outer shell is reversely connected with a plurality of clamping arms positioned on both sides of the rail in the YZ vertical plane; the middle part of the plurality of clamping arms is penetratively connected with a clamping screw, which adjusts the X direction spacing of the plurality of clamping arms and provides clamping force on both sides of the rail.

2. The wind and rail guard for a light gantry crane according to claim 1, characterized in that: The lower part of the outer shell is penetratively connected with a pin rod, the middle section of the pin rod is reversely connected with a plurality of clamping arms in the YZ vertical plane; the clamping arm comprises a main arm and a secondary arm, wherein the lower part of the main arm is provided with a sleeve hole penetrating in the X direction and having a diameter larger than that of the pin rod, and a plurality of secondary arms are stacked and welded on the upper part of the main arm.

3. The wind and rail guard for a light gantry crane according to claim 2, characterized in that: The free end of the secondary arm is integrally provided with a hook bent towards the object, which is reversely connected with the end face of the main arm and hung on both sides of the top plane of the "I" shaped structure rail; the X direction penetrative clamping screw is provided at the stacked and welded position of the main arm and the secondary arm.

4. The wind and rail guard for a light gantry crane according to claim 1, characterized in that: The middle part of the outer shell is provided with an accommodation arc groove, which provides accommodation for the manually reversed clamping arm.

5. The wind and rail deflector for a light gantry crane according to claim 1, characterized in that: The upper part of the outer shell is provided with an X direction penetrating constraint long hole, the height of the constraint long hole near the gantry crane side is higher than that of the constraint long hole far from the gantry crane side, and the constraint long hole is internally X direction penetratively connected and slidably supports the constraint rod in the YZ vertical plane.

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