Rigid telescopic crane

Abstract

The utility model relates to the field of hoist, and the utility model provides a rigid telescopic hoist, travelling crane, hydraulic station, rigid landing gear and carrying gripper. The hydraulic station is installed on the travelling crane, the rigid landing gear is connected with the bottom of the travelling crane, and the carrying gripper is installed below the rigid landing gear. The rigid telescopic hoist of the utility model adopts the rigid structure hoisting product to land, effectively avoids the swing and rotation problem.

Description

Technical Field

[0001] This utility model relates to the field of cranes, and in particular to a rigid telescopic crane. Background Technology

[0002] Overhead cranes typically lift or lower products using wire ropes or chains, employing a coiling and winding method. Their structure generally consists of a motor connected to a reducer, which in turn connects to a winch. Wire rope is wound onto the winch, and the end of the rope is connected to a hook. This hook, along with a lifting ring or harness, connects to the product being lifted, allowing for lifting and lowering. This lifting structure is considered a flexible connection, causing the load to sway slightly with the wire rope during the lifting process. Especially during crane movement, due to inertia, the faster the movement, the greater the sway, often requiring frequent stops and starts to reduce the amplitude of the sway. Sometimes, the load may even rotate due to the flexible connection. To address these issues, anti-sway devices are currently used, but these devices still cause some swaying during use, albeit with a smaller amplitude. The problem of the load rotating due to the flexible connection remains unresolved. Utility Model Content

[0003] In view of this, the present invention aims to propose a rigid telescopic crane that uses a rigid structure to lift and lower products, effectively avoiding swaying and rotation problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A rigid telescopic crane includes a traveling crane, a hydraulic station, a rigid landing gear, and a handling gripper. The hydraulic station is mounted on the traveling crane, the rigid landing gear is connected to the bottom of the traveling crane, and the handling gripper is mounted below the rigid landing gear.

[0006] Furthermore, the rigid landing gear includes an upper connecting frame, a lower connecting frame, a wear-resistant plate, at least one pair of cross plate mechanisms, and a drive mechanism;

[0007] The cross plate mechanism includes a central shaft, a central shaft bearing, and two cross plates, the two cross plates being hinged together by the central shaft and the central shaft bearing.

[0008] One end of one of the cross plates is fixed to the side of the upper connecting frame via a cross plate fixing shaft and a cross plate fixing bearing, and one end of the other cross plate is fixed to the side of the lower connecting frame via a cross plate fixing shaft and a cross plate fixing bearing.

[0009] The other end of the cross plate is fixed to the wear-resistant plate by a cross plate sliding shaft and a cross plate sliding bearing.

[0010] The wear-resistant plates are respectively fixed to both sides of the upper connecting frame and the lower connecting frame;

[0011] The drive mechanism includes a cylinder fixing shaft and a cylinder. One end of the cylinder is fixed to one end of a cross plate via the cylinder fixing shaft, and the other end is connected to one end of another cross plate via a universal joint.

[0012] Furthermore, each pair of cross plates has two sets of hydraulic cylinders, and the two pairs of cross plates are respectively arranged on both sides of the upper connecting frame, so that the upper connecting frame and the lower connecting frame are connected.

[0013] Furthermore, the drive mechanism is a hydraulic drive system, powered by a hydraulic station.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] The rigid telescopic crane described in this utility model can directly prevent the product from swaying or rotating due to inertia and other external forces when the crane is handling products; it effectively solves the problems of low work efficiency and delays caused by swaying and rotation. Attached Figure Description

[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0017] Figure 1 This is a front view of the rigid telescopic crane described in this embodiment of the utility model;

[0018] Figure 2 This is a front view of the rigid landing gear of the rigid telescopic crane described in this embodiment of the utility model;

[0019] Figure 3 This is a side view of the rigid telescopic crane described in this embodiment of the utility model;

[0020] Figure 4 This is a multi-stage cross mechanism for the rigid landing gear of the rigid telescopic crane described in this embodiment of the utility model;

[0021] Figure 5 This is the rigid landing gear screw transmission structure of the rigid telescopic crane described in this embodiment of the utility model;

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Overhead crane; 2. Hydraulic station; 3. Rigid landing gear; 4. Handling gripper; 301. Upper connecting frame; 302. Cross plate; 303. Central shaft; 304. Central shaft bearing; 305. Cross plate fixing shaft; 306. Cross plate fixing bearing; 307. Hydraulic cylinder fixing shaft; 308. Hydraulic cylinder; 309. Universal joint; 3010. Lower connecting frame; 3011. Wear-resistant plate; 3012. Cross plate sliding shaft; 3013. Cross plate sliding bearing. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] This embodiment relates to a rigid telescopic crane, which includes a traveling crane, a hydraulic station, a rigid landing gear, and a handling gripper. The hydraulic station is installed on the traveling crane, the rigid landing gear is connected to the bottom of the traveling crane, and the handling gripper is installed below the rigid landing gear.

[0028] Based on the above design concept, an exemplary structure of the rigid telescopic crane in this embodiment is as follows: Figures 1 to 5 As shown, it mainly includes a traveling crane 1, a hydraulic station 2, a rigid landing gear 3, and a handling gripper 4. The hydraulic station 2 is installed on the traveling crane 1, the rigid landing gear 3 is connected to the bottom of the traveling crane 1, and the handling gripper 4 is installed below the rigid landing gear 3.

[0029] like Figure 2As shown, the rigid landing gear 3 includes an upper connecting frame 301, a lower connecting frame 3010, a wear-resistant plate 3011, at least one pair of cross plate mechanisms, and a drive mechanism. The cross plate mechanism includes a central shaft 303, a central shaft bearing 304, and two cross plates 302. The two cross plates 302 are hinged together by the central shaft 303 and the central shaft bearing 304. One end of one cross plate 302 is fixed to the side of the upper connecting frame 301 by a cross plate fixing shaft 305 and a cross plate fixing bearing 306. One end of the other cross plate 302 is fixed to the side of the upper connecting frame 301 by a cross plate fixing shaft 305 and a cross plate fixing bearing 306. The cross plate 302 is fixed to the side of the lower connecting frame 3010 by a fixed bearing 306; the other end of the cross plate 302 is fixed to the wear-resistant plate 3011 by a cross plate sliding shaft 3012 and a cross plate sliding bearing 3013; the wear-resistant plate 3011 is fixed to both sides of the upper connecting frame 301 and the lower connecting frame 3010 respectively; the drive mechanism includes a cylinder fixing shaft 307 and a cylinder 308, one end of the cylinder 308 is fixed to one end of a cross plate 302 by a cylinder fixing shaft 307, and the other end is connected to one end of another cross plate 302 by a universal joint 309.

[0030] Each pair of cross plates 302 has two sets of hydraulic cylinders 308. The two pairs of cross plates 302 are respectively arranged on both sides of the upper connecting frame 301, so that the upper connecting frame 301 and the lower connecting frame 3010 are connected.

[0031] The drive mechanism is a hydraulic drive system, powered by hydraulic station 2. It is understandable that rigid landing gear 3 could also be made as... Figure 4 As shown, the multi-stage cross mechanism and rigid landing gear 3 can also be used without a hydraulic drive system, such as... Figure 5 The extension and retraction are achieved using a lead screw drive, as shown.

[0032] In this embodiment, the rigid telescopic crane operates by moving the trolley 1, hydraulic station 2, rigid lifting frame 3, and handling gripper 4. When lowering, the hydraulic station 2 supplies power to the cylinder 308, extending the piston rod and increasing the left-right crossing angle of the two pairs of cross plates 302. The cross plate sliding bearing 3013 slides on the wear-resistant plate 3011 to compensate for angle changes. When lifting, the piston rod of the cylinder 308 retracts, increasing the up-down crossing angle of the two pairs of cross plates 302. The cross plate sliding bearing 3013 continues to slide on the wear-resistant plate 3011 to compensate for angle changes. The handling gripper 4 is responsible for gripping the product.

[0033] The rigid telescopic crane using the above-described implementation scheme effectively prevents product swaying and rotation caused by inertia and other external forces during product handling. This effectively solves the problems of low work efficiency and delays caused by swaying and rotation.

[0034] The above description is only a preferred embodiment of the present utility model and is 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 should be included within the protection scope of the present utility model.

Claims

1. A rigid telescopic crane, comprising a traveling crane (1), a hydraulic station (2), a rigid lifting frame (3), and a handling gripper (4), characterized in that: The hydraulic station (2) is installed on the trolley (1), the rigid landing gear (3) is connected to the bottom of the trolley (1), and the handling gripper (4) is installed below the rigid landing gear (3).

2. The rigid telescopic crane according to claim 1, characterized in that: The rigid landing gear (3) includes an upper connecting frame (301), a lower connecting frame (3010), a wear-resistant plate (3011), at least one pair of cross plate mechanisms and a drive mechanism; The cross plate mechanism includes a central shaft (303), a central shaft bearing (304), and two cross plates (302), which are hinged together by the central shaft (303) and the central shaft bearing (304). One end of one of the cross plates (302) is fixed to the side of the upper connecting frame (301) via a cross plate fixing shaft (305) and a cross plate fixing bearing (306), and one end of the other cross plate (302) is fixed to the side of the lower connecting frame (3010) via a cross plate fixing shaft (305) and a cross plate fixing bearing (306). The other end of the cross plate (302) is fixed to the wear-resistant plate (3011) through the cross plate sliding shaft (3012) and the cross plate sliding bearing (3013); The wear-resistant plate (3011) is fixed to both sides of the upper connecting frame (301) and the lower connecting frame (3010); The drive mechanism includes a cylinder fixing shaft (307) and a cylinder (308). One end of the cylinder (308) is fixed to one end of a cross plate (302) via the cylinder fixing shaft (307), and the other end is connected to one end of another cross plate (302) via a universal joint (309).

3. The rigid telescopic crane according to claim 2, characterized in that: Each pair of cross plates (302) has two sets of oil cylinders (308), and the two pairs of cross plates (302) are respectively arranged on both sides of the upper connecting frame (301) so that the upper connecting frame (301) and the lower connecting frame (3010) are connected.

4. The rigid telescopic crane according to claim 2, characterized in that: The drive mechanism is a hydraulic drive system, powered by a hydraulic station (2).

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