Anti-swing portal crane

Abstract

The utility model relates to the technical field of portal cranes, and particularly discloses an anti-swing portal crane, which comprises a pair of rails arranged in parallel, a traveling mechanism longitudinally moving along the rails, supporting legs fixed on the traveling mechanism, a bridge frame with two ends respectively fixedly supported at the top ends of the supporting legs, and a crane carriage transversely moving along the bridge frame. The middle part of the top surface of the guide supporting beam is fixedly connected to the bottom of the crane carriage rack; the stabilizing rod pieces are arranged on the two sides of the hoisting trolley lifting hook in pairs, the bottom ends of the two stabilizing rod pieces in pairs are hinged to the two side walls of a hoisting trolley lifting hook shell correspondingly, and the top ends of the stabilizing rod pieces are slidably clamped to the guide supporting beams correspondingly. And the problem that the obvious swinging phenomenon easily exists when the portal crane hoists a heavy object is well solved.

Description

Technical Field

[0001] This utility model relates to the field of gantry crane technology, specifically an anti-sway gantry crane. Background Technology

[0002] Gantry cranes are lifting equipment widely used in industrial fields. They typically consist of a bridge frame supported by two outriggers on both sides, moving along ground rails. Structurally, they are composed of a gantry frame, traveling mechanism, lifting trolley, and ground rails.

[0003] Currently, the trolleys in commonly used gantry cranes are generally suspended by wire ropes or chains. These suspension components are all flexible, so it is inevitable that there will be significant swaying of the hoisted object, which not only affects the safety of ground personnel, but also easily leads to collisions and damage to the hoisted goods. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-sway gantry crane to solve the problem that current gantry cranes are prone to significant swaying when lifting heavy objects.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-sway gantry crane, comprising a pair of parallel rails, a traveling mechanism that moves longitudinally along the rails, outriggers fixed to the traveling mechanism, a bridge frame with both ends fixedly supported at the top of the outriggers, and a lifting trolley that moves laterally along the bridge frame.

[0006] The top surface of the guide support beam is fixedly connected to the bottom of the crane trolley frame at the middle.

[0007] The stabilizing rods are arranged in pairs on both sides of the crane hook. The bottom ends of the two stabilizing rods are respectively hinged to the two side walls of the crane hook housing, and the top ends of the stabilizing rods are respectively slidably engaged with the guide support beam.

[0008] Preferably, the top surface of the guide support beam is provided with a connecting seat that is fixedly connected to the bottom of the crane trolley frame, and the bottom surface of the guide support beam is provided with a sliding groove that is slidably engaged with the top of the stabilizing rod.

[0009] Preferably, the stabilizing rod includes lugs fixedly connected to the two side walls of the hook housing of the crane trolley and a rod body. The bottom end of the rod body is fixed with a lug plate one that is hinged to the lugs, and the top end of the rod body is fixed with a lug plate two that is slidably engaged with the slide groove.

[0010] Preferably, the guide support beam has a column cavity, and the end of the ear plate extending into the column cavity is fitted with a shaft, and the two ends of the shaft are respectively fitted with support wheels that roll along the inner cavity of the column cavity.

[0011] Preferably, the bottom surfaces at both ends of the bridge frame are respectively provided with end supports that are slidably engaged with the two ends of the guide support beam.

[0012] Preferably, the end support includes a connecting plate fixedly connected to the bottom surface of both ends of the bridge frame and a grooved wheel rotatably mounted on the top of the central shaft near the four corners of the connecting plate, and the front and rear sides of the guide support beam are respectively engaged in the groove of the grooved wheel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model relates to an anti-sway gantry crane, in which stabilizing rods provide rigid diagonal bracing on both sides of the hook during lifting and lowering, thereby effectively avoiding the problem of significant swaying when lifting heavy objects. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the guide support beam of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the end support component of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the stabilizing rod of this utility model.

[0019] In the diagram: 1 - track;

[0020] 2-Walking mechanism;

[0021] 3-legs;

[0022] 4-Cable tray;

[0023] 5- Crane trolley;

[0024] 6-Guide support beam; 6.1-Connecting seat; 6.2-Column cavity; 6.3-Slide groove;

[0025] 7-End support; 7.1-Connecting plate; 7.2-Groove wheel;

[0026] 8-Stabilizing rod; 8.1-Rod body; 8.1.1-Ear plate one; 8.1.2-Ear plate two; 8.2-Ear seat; 8.3-Shaft; 8.4-Support wheel. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-4 This utility model provides a technical solution: an anti-sway gantry crane, including a pair of parallel rails 1, a traveling mechanism 2 that moves longitudinally along the rails, outriggers 3 fixed to the traveling mechanism 2, a bridge frame 4 that is fixedly supported at both ends on the top of the outriggers 3, and a lifting trolley 5 that moves laterally along the bridge frame 4.

[0029] The top center of the guide support beam 6 is fixedly connected to the bottom of the crane trolley 5 frame. The top center of the guide support beam 6 has a connecting seat 6.1 that is fixedly connected to the bottom of the crane trolley 5 frame. The guide support beam 6 has a cylindrical cavity 6.2 inside, and the bottom center of the guide support beam 6 has an axially oriented sliding groove 6.3 that communicates with the cylindrical cavity 6.2. The top of the connecting seat 6.1 is fixedly connected to the bottom of the crane trolley 5 frame with bolts. When the crane trolley 5 moves laterally along the guide rails on the bridge frame 4, it will cause the guide support beam 6 to move laterally. Since this crane is mostly used outdoors, the extensions of the guide support beam 6 relative to both ends of the bridge frame 4 will not be obstructed by external structures.

[0030] Stabilizing rods 8 are arranged in pairs on both sides of the hook of the trolley 5. Each stabilizing rod 8 includes a lug 8.2 fixedly connected to the side walls of the hook housing of the trolley 5, and a rod body 8.1. The bottom end of the rod body 8.1 is fixed with a lug plate 8.1.1 hinged to the lug 8.2, and the top end of the rod body 8.1 is fixed with a lug plate 8.1.2 slidably engaged with a groove 6.3. A shaft 8.3 is fitted onto the end of the lug plate 8.1.2 extending into the cylindrical cavity 6.2. Support wheels 8.4, which roll along the inner cavity of the cylindrical cavity 6.2, are rotatably fitted onto both ends of the shaft 8.3. That is, when the lifting trolley 5 lifts and lowers the hook, while the first ear plate 8.1.1 rotates relative to the ear seat 8.2, the second ear plate 8.1.2 will slide along the slide groove 6.3 accordingly, and the support wheel 8.4 will roll in the column cavity 6.2 accordingly. The height of the inner cavity of the column cavity 6.2 is close to the diameter of the support wheel 8.4, so that the support wheel 8.4 is only allowed to make a small vertical displacement within the column cavity 6.2.

[0031] Since the guide support beam 6 is a cantilever structure with both ends suspended at the bottom of the crane trolley 5 frame, in order to ensure stable support for the guide support wheels 6, the bottom surfaces at both ends of the bridge frame 4 are respectively provided with end support members 7 that are slidably engaged with the ends of the guide support beam 6. The end support member 7 includes a connecting plate 7.1 fixedly connected to the bottom surfaces at both ends of the bridge frame 4 and a grooved wheel 7.2 rotatably mounted on the top of the central shaft near the four corners of the connecting plate 7.1. The front and rear sides of the guide support beam 6 are respectively engaged in the grooves of the grooved wheel 7.2. That is, when the guide support beam 6 moves laterally under the drive of the crane trolley 5, the grooved wheel 7.2 provides guidance and support, and the support of the grooved wheel 7.2 ensures the smooth and stable movement of the guide support beam 6.

[0032] In summary, when the wire rope drum on the trolley 5 unwinds the wire rope and lowers the hook, the hook pulls the rod 8.1 downwards through the lug 8.2 and lug plate 8.1.1, causing the lug plates 8.1.2 at the top of both sides of the rod 8.1 to slide synchronously towards the trolley 5. When the wire rope drum winds up the wire rope and raises the hook, the hook pushes the rod 8.1 upwards through the lug 8.2 and lug plate 8.1.1, causing the lug plates 8.1.2 on both sides of the rod 8.1 to slide synchronously away from the trolley 5.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-sway gantry crane, comprising a pair of parallel rails (1), a traveling mechanism (2) that moves longitudinally along the rails, outriggers (3) fixed to the traveling mechanism (2), a bridge frame (4) with both ends fixedly supported at the top of the outriggers (3), and a lifting trolley (5) that moves laterally along the bridge frame (4), characterized in that, Also includes: A guide support beam (6) is fixedly connected to the bottom of the crane trolley (5) frame at the center of its top surface; Stabilizing rods (8) are arranged in pairs on both sides of the hook of the trolley (5). The bottom ends of the two pairs of stabilizing rods (8) are respectively hinged to the two side walls of the hook shell of the trolley (5), and the top ends of the stabilizing rods (8) are respectively slidably engaged with the guide support beam (6).

2. The anti-sway gantry crane according to claim 1, characterized in that: The top surface of the guide support beam (6) is provided with a connecting seat (6.1) that is fixedly connected to the bottom of the crane trolley (5) frame, and the bottom surface of the guide support beam (6) is provided with a sliding groove (6.3) that is slidably engaged with the top of the stabilizing rod (8).

3. The anti-sway gantry crane according to claim 2, characterized in that: The stabilizing rod (8) includes lugs (8.2) and a rod body (8.1) fixedly connected to the two side walls of the hook housing of the trolley (5). The bottom end of the rod body (8.1) is fixed with a lug plate hinged to the lugs (8.2). 8.1.1) The top end of the rod (8.1) is fixed with an ear plate (8.1.2) that is slidably engaged with the slide groove (6.3).

4. The anti-sway gantry crane according to claim 3, characterized in that: The guide support beam (6) has a column cavity (6.2) inside. The ear plate (8.1.2) extends to the end of the column cavity (6.2) and is fitted with a shaft (8.3). The two ends of the shaft (8.3) are respectively fitted with support wheels (8.4) that roll along the inner cavity of the column cavity (6.2).

5. The anti-sway gantry crane according to claim 1, characterized in that: The bottom surfaces at both ends of the bridge frame (4) are respectively provided with end support members (7) that are slidably engaged with the two ends of the guide support beam (6).

6. The anti-sway gantry crane according to claim 5, characterized in that: The end support (7) includes a connecting plate (7.1) fixedly connected to the bottom surface of both ends of the bridge frame (4) and a grooved wheel (7.2) rotatably mounted on the top of the central shaft near the four corners of the connecting plate (7.1). The front and rear sides of the guide support beam (6) are respectively engaged in the groove of the grooved wheel (7.2).

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