A crane wind-resistant anti-slip track clamp

Abstract

The utility model discloses a crane wind -proof antiskid track clamp, including fixed clamping frame and mobile clamping frame, both symmetrically set, and mobile clamping frame can move laterally along the one side of fixed clamping frame through adjusting assembly, and adjusting assembly includes adjusting screw rod, adjusting turbine and adjusting worm, and adjusting screw rod symmetry rotates and installs at the one side surface of fixed clamping frame, and the one side fixed mounting of fixed clamping frame has the limiting plate, and the one end of limiting plate penetrates mobile clamping frame, and fixedly installed have adjusting box, and adjusting worm sets up in adjusting box, and the device drives adjusting turbine through rotating adjusting worm, and then drives adjusting screw rod and makes mobile clamping frame move laterally, can be convenient for staff to carry out the quick clamping to track, compared with the conventional mode of rotating multiple screw rods and clamping track, the device is faster, can be clamped through to multiple adjusting screw rod, and through worm gear, can effectively prevent the loosening or slip of clamp under wind load.

Description

Technical Field

[0001] This utility model relates to a wind-resistant and anti-slip rail clamp for cranes, belonging to the technical field of rail clamps. Background Technology

[0002] Rail clamps are core safety devices for large outdoor lifting equipment such as gantry cranes and portal cranes. Their core function is to clamp the rails to counteract the effects of external forces such as strong winds and ground vibrations when the equipment is not in operation, preventing the equipment from accidentally sliding, moving, or even overturning along the rails, thereby ensuring the safety of the equipment structure, the surrounding working environment, and personnel. They are an indispensable key protective component for outdoor lifting equipment under wind load conditions.

[0003] Currently, most mainstream rail clamps on the market adopt a traditional purely mechanical screw structure. Their working principle involves manually rotating one or more independent screws using a lever, which then pushes the clamping arms closer to the rail to achieve clamping. This type of structure was widely used in early lifting equipment due to its simple principle and low manufacturing cost. However, as the tonnage of lifting equipment has increased and the operating environment has become more complex, such as in coastal high-salt and strong-wind areas and dusty heavy industrial settings, its inherent defects have gradually become apparent, making it difficult to meet the requirements of modern equipment for safety, stability, ease of operation, and economical maintenance.

[0004] From a practical application perspective, traditional structures suffer from both operational inefficiencies and insufficient clamping precision. To achieve sufficient wind-resistant and anti-slip clamping force, operators need to rotate multiple independent screws sequentially and repeatedly apply force. The entire process is time-consuming and physically demanding, and clamping force control relies entirely on experience, easily leading to uneven clamping, such as one side being too tight or too loose. The overly tight side causes excessive wear on the track, while the overly loose side cannot provide effective anti-slip force, potentially causing equipment slippage during strong winds. Furthermore, due to the lack of a force feedback mechanism, operators cannot accurately determine whether the clamping force has reached the safe threshold, further reducing the reliability of wind-resistant protection.

[0005] Furthermore, traditional grippers suffer from poor versatility in their gripping components and high maintenance costs. The gripping contact surfaces are mostly fixed friction blocks adapted to a single track specification, making them unsuitable for tracks of different specifications or those with rust or debris. This leads to a sharp drop in anti-slip friction due to reduced contact area. Moreover, the friction blocks are often connected to the gripper arms via welding or multiple bolts; replacement after wear requires removing numerous bolts or even on-site cutting. This necessitates not only professional operation but also complete disassembly of the gripper, resulting in prolonged equipment downtime and severely impacting production efficiency. Additionally, the discarded friction blocks are difficult to separate, failing to meet the economical maintenance requirements of modern equipment. Utility Model Content

[0006] The purpose of this utility model is to provide a crane wind-resistant and anti-slip rail clamp to solve the above problems, which can achieve rapid clamping of the rail and save the physical strength of the workers.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a crane wind-resistant and anti-slip rail clamp, comprising a fixed clamping frame and a movable clamping frame, which are symmetrically arranged. The movable clamping frame can move laterally along one side of the fixed clamping frame through an adjustment component. The adjustment assembly includes an adjustment screw, an adjustment turbine, and an adjustment worm gear. The adjustment screw is symmetrically rotatably mounted on one side surface of the fixed clamping frame. A limit plate is fixedly mounted on one side of the fixed clamping frame. One end of the limit plate passes through the movable clamping frame and is fixedly mounted with an adjustment box. The adjustment worm gear is disposed inside the adjustment box. Both the fixed clamp and the movable clamp have quick-release clamping components on their adjacent surfaces.

[0008] Preferably, the limiting plate has limiting protrusions on both sides, and the movable clamping frame has a limiting hole at the top center, with one end of the limiting plate slidably engaging in the limiting hole.

[0009] Preferably, the adjusting box is fixedly welded to the lower surface of one end of the limiting plate, the adjusting worm is rotatably installed in the adjusting box, and a fixed gear is rotatably installed on one end surface of the adjusting box, with one side of the fixed gear being fixedly connected to the adjusting worm.

[0010] Preferably, a snap-fit ​​box is fixedly installed on one end surface of the adjustment box, a sliding snap-fit ​​plate is slidably snapped in the snap-fit ​​box, snap-fit ​​teeth that engage with the fixed gear are uniformly fixedly installed on the upper surface of the sliding snap-fit ​​plate, snap-fit ​​springs are symmetrically fixedly installed in the snap-fit ​​box, and the lower end of the sliding snap-fit ​​plate is fixedly connected to the snap-fit ​​springs.

[0011] Preferably, the clamping member includes a clamping frame, in which a clamping plate is slidably engaged, and clamping protrusions are evenly distributed on one side surface of the clamping plate. The clamping plate and the clamping frame are fixed together by screws.

[0012] Preferably, a clamping rod is symmetrically and rotatably mounted on one side surface of the clamping frame, and a first arc-shaped block is symmetrically and equally spaced fixedly mounted on the clamping rod. A plurality of clamping grooves are formed on one side surface of the first arc-shaped block.

[0013] Preferably, the fixed clamping frame and the movable clamping frame are symmetrically provided with insertion holes, and the inner circumferential walls of the insertion holes are symmetrically and equally spacedly fixedly installed with second arc-shaped blocks. The first arc-shaped blocks are provided with multiple elastic locking plates, and the elastic locking plates are snapped into the clamping groove.

[0014] Preferably, one end of the clamping rod has an orientation groove, and the elastic plate is made of alloy spring steel.

[0015] The beneficial effects of this utility model are: 1. This device drives the adjusting turbine by rotating the adjusting worm gear, which in turn drives the adjusting screw to move the moving clamping frame laterally. This allows workers to quickly clamp the track. Compared with the traditional method of clamping the track by rotating multiple screws, this device is faster to operate. It can clamp multiple adjusting screws, and the self-locking structure of the worm gear can effectively prevent the clamp from loosening or slipping under wind load.

[0016] 2. The clamping plate and clamping protrusions inside the clamping component enable multi-point clamping of the track. The quick-release clamping component allows for rapid replacement of the clamping component, thus enabling the use of clamping components made of different materials, making it highly practical. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram showing the position of the directional groove of this utility model.

[0019] Figure 3 This is a schematic diagram showing the position of the adjustment box of this utility model.

[0020] Figure 4 This is a schematic diagram showing the position of the clamping groove of this utility model.

[0021] Figure 5 This is a schematic diagram showing the position of the elastic card plate of this utility model.

[0022] Figure 6 for Figure 1 Enlarged view of the structure at point A in the image.

[0023] Figure 7 for Figure 1 Enlarged view of the structure at point B in the image.

[0024] Figure 8 for Figure 3 Enlarged view of the structure at point C.

[0025] In the diagram: 1. Fixed clamping frame; 2. Movable clamping frame; 3. Adjustment assembly; 301. Adjusting screw; 302. Adjusting worm gear; 303. Adjusting worm; 304. Fixed gear; 305. Snap-fit ​​box; 306. Sliding plate; 307. Snap-fit ​​tooth; 308. Snap-fit ​​spring; 4. Limiting plate; 5. Adjustment box; 6. Clamping component; 601. Clamping frame; 602. Clamping plate; 603. Clamping protrusion; 604. Screw; 605. Clamping rod; 606. First arc-shaped block; 607. Clamping groove; 608. Second arc-shaped block; 609. Elastic plate; 7. Limiting protrusion; 8. Orientation groove. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-8 As shown, a crane wind-resistant and anti-slip rail clamp includes a fixed clamping frame 1 and a movable clamping frame 2, which are symmetrically arranged. The movable clamping frame 2 can move laterally along one side of the fixed clamping frame 1 through an adjustment component 3.

[0028] The adjustment assembly 3 includes an adjustment screw 301, an adjustment worm gear 302, and an adjustment worm 303. The adjustment screw 301 is symmetrically rotatably mounted on one side surface of the fixed clamping frame 1. A limit plate 4 is fixedly installed on one side of the fixed clamping frame 1. One end of the limit plate 4 passes through the movable clamping frame 2 and is fixedly mounted with an adjustment box 5. The adjustment worm gear 303 is disposed inside the adjustment box 5. Quick-release clamping parts 6 are provided on the adjacent surfaces of the fixed clamping frame 1 and the movable clamping frame 2. It should be noted that the basic structure of this device consists of the fixed clamping frame 1 and the movable clamping frame 2, which are mutually exclusive. The arrangement forms a basic configuration for clamping from both sides of the track. To achieve clamping and releasing, the movable clamping frame 2 is linked with the fixed clamping frame 1 through a set of precision adjustment components 3. The core of the adjustment components 3 is a worm gear transmission system: by rotating the adjustment worm 303, the adjustment worm 302 is driven, which in turn drives the two adjustment screws 301 to rotate synchronously. The rotational motion of the adjustment screws 301 is converted into the lateral linear motion of the movable clamping frame 2 through the threaded pair. This design converts a single input into synchronous linear output of two symmetrical points, ensuring the balance and stability of the clamping force.

[0029] In addition, the limiting plate 4 passes through the movable clamping frame 2 and is fixedly connected to the adjustment box 5 at the end, forming a stable reference frame. The quick-release clamping parts 6 installed on the clamping frames on both sides are clamping components that directly contact the track and perform clamping functions.

[0030] Limiting protrusions 7 are provided on both sides of the limiting plate 4, and a limiting hole is opened at the top center of the movable clamping frame 2. One end of the limiting plate 4 is slidably engaged in the limiting hole. The adjusting box 5 is fixedly welded to the lower surface of one end of the limiting plate 4. The adjusting worm 303 is rotatably installed in the adjusting box 5. A fixed gear 304 is rotatably installed on one end surface of the adjusting box 5. One side of the fixed gear 304 is fixedly connected to the adjusting worm 303. It should be noted that the limiting protrusions 7 slide in contact with the inner wall of the limiting hole. This structure ensures that the movable clamping frame 2 can only move horizontally in a strict sense under the drive of the adjusting component 3, completely eliminating any rotational freedom caused by uneven force. Moreover, the rotating fixed gear 304 can drive the adjusting worm 303 to rotate.

[0031] A snap-fit ​​box 305 is fixedly installed on one end surface of the adjustment box 5. A sliding snap-fit ​​plate 306 is slidably snapped into the snap-fit ​​box 305. The upper surface of the sliding snap-fit ​​plate 306 is uniformly fixedly installed with snap teeth 307 that engage with the fixed gear 304. Snap-fit ​​springs 308 are symmetrically fixedly installed inside the snap-fit ​​box 305. The lower end of the sliding snap-fit ​​plate 306 is fixedly connected to the snap-fit ​​springs 308. It should be noted that through the cooperation of the snap-fit ​​springs 308, the sliding snap-fit ​​plate 306, the snap teeth 307, and the fixed gear 304, a self-locking mechanism can be formed on the fixed gear 304 after the operator rotates it. The snap-fit ​​springs 308 are made of stainless steel.

[0032] The clamping component 6 includes a clamping frame 601, within which a clamping plate 602 is slidably engaged. Clamping protrusions 603 are evenly distributed on one side surface of the clamping plate 602. The clamping plate 602 and the clamping frame 601 are fixed together by screws 604. A clamping rod 605 is symmetrically and rotatably mounted on one side surface of the clamping frame 601. First arc-shaped blocks 606 are symmetrically and evenly fixedly mounted on the clamping rods 605. Multiple clamping grooves 607 are formed on one side surface of the first arc block 606. The fixed clamping frame 1 and the movable clamping frame 2 have symmetrically formed insertion holes. Second arc blocks 608 are symmetrically and equally spaced on the inner circumference of each insertion hole. Multiple elastic clamping plates 609 are formed on the first arc block 606. The elastic clamping plates 609 are engaged with the clamping grooves 607. An orientation groove 8 is formed on one end surface of the clamping rod 605. The elastic clamping plates 609 are made of alloy spring steel. Note: When quickly disassembling the clamping component 6, the operator first aligns the clamping rod 605 on one side of the clamping frame 601 with the insertion hole. At this time, the first arc-shaped block 606 and the second arc-shaped block 608 on the clamping rod 605 need to be offset. Then, the clamping rod 605 is inserted into the insertion hole. After passing through the insertion hole, the clamping rod 605 is rotated so that the first arc-shaped block 606 and the second arc-shaped block 608 overlap. At this time, the elastic retaining plate 609 is used to release the clamping rod. The clamping plates 602 and 603 are interlocked and slide against each other to complete the installation of the clamping frame 601. The clamping plate 602 can be made of rubber. When installing the clamping plate 602, it is necessary to first insert the clamping plate 602 into the clamping frame 601, and then fix the clamping plate 602 with the screw 604 to achieve the fixation of the clamping plate 602. The clamping protrusions 603 (rubber material) can achieve multi-point clamping of the track.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A crane wind-resistant and anti-slip rail clamp, comprising a fixed clamping frame (1) and a movable clamping frame (2), which are symmetrically arranged, characterized in that: The movable clamp (2) can move laterally along one side of the fixed clamp (1) via the adjustment component (3); The adjustment assembly (3) includes an adjustment screw (301), an adjustment turbine (302), and an adjustment worm gear (303). The adjustment screw (301) is symmetrically rotated and mounted on one side surface of the fixed clamping frame (1). A limit plate (4) is fixedly installed on one side of the fixed clamping frame (1). One end of the limit plate (4) passes through the movable clamping frame (2) and is fixedly mounted with an adjustment box (5). The adjustment worm gear (303) is disposed inside the adjustment box (5). Both the fixed clamping frame (1) and the movable clamping frame (2) have quick-release clamping parts (6) on their adjacent surfaces.

2. The crane wind-resistant and anti-slip rail clamp according to claim 1, characterized in that: The limiting plate (4) has limiting protrusions (7) on both sides, and a limiting hole is opened at the top center of the movable clamping frame (2). One end of the limiting plate (4) is slidably engaged in the limiting hole.

3. The crane wind-resistant and anti-slip rail clamp according to claim 2, characterized in that: The adjusting box (5) is fixedly welded to the lower surface of one end of the limiting plate (4). The adjusting worm (303) is rotatably installed inside the adjusting box (5). A fixed gear (304) is rotatably installed on one end surface of the adjusting box (5). One side of the fixed gear (304) is fixedly connected to the adjusting worm (303).

4. The crane wind-resistant and anti-slip rail clamp according to claim 3, characterized in that: A snap-fit ​​box (305) is fixedly installed on one end surface of the adjustment box (5). A sliding snap-fit ​​plate (306) is slidably snapped into the snap-fit ​​box (305). A snap-fit ​​tooth (307) that engages with the fixed gear (304) is uniformly fixedly installed on the upper surface of the sliding snap-fit ​​plate (306). A snap-fit ​​spring (308) is symmetrically fixedly installed in the snap-fit ​​box (305). The lower end of the sliding snap-fit ​​plate (306) is fixedly connected to the snap-fit ​​spring (308).

5. The crane wind-resistant and anti-slip rail clamp according to claim 1, characterized in that: The clamping member (6) includes a clamping frame (601), in which a clamping plate (602) is slidably engaged. A clamping protrusion (603) is evenly provided on one side surface of the clamping plate (602). The clamping plate (602) and the clamping frame (601) are fixed together by a screw (604).

6. The crane wind-resistant and anti-slip rail clamp according to claim 5, characterized in that: A clamping rod (605) is symmetrically and rotatably mounted on one side surface of the clamping frame (601). A first arc-shaped block (606) is fixedly mounted symmetrically and at equal intervals on the clamping rod (605). A plurality of clamping grooves (607) are opened on one side surface of the first arc-shaped block (606).

7. The crane wind-resistant and anti-slip rail clamp according to claim 6, characterized in that: The fixed clamping frame (1) and the movable clamping frame (2) are symmetrically provided with insertion holes. The inner circumferential walls of the insertion holes are symmetrically and equally spaced with second arc-shaped blocks (608). The first arc-shaped block (606) is provided with multiple elastic plates (609). The elastic plates (609) are engaged with the clamping groove (607).

8. The crane wind-resistant and anti-slip rail clamp according to claim 7, characterized in that: The clamping rod (605) has an azimuth groove (8) on one end surface, and the elastic plate (609) is made of alloy spring steel.

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