Downward-added cross beam lifting hook of overhead and portal crane

Abstract

The utility model discloses an underneath adding cross beam lifting hook of a portal crane, and particularly relates to the technical field of portal cranes, the underneath adding cross beam lifting hook comprises a support frame, cross beam lifting hook stabilizing and protecting devices are arranged at the upper end and the lower end of the support frame, and each cross beam lifting hook stabilizing and protecting device comprises a positioning auxiliary device and a cross beam lifting hook starting assembly. Compared with the prior art, after the automatic clamping tongs are positioned, the lifting hook body is prevented from being influenced by wind power and cannot be positioned for accurate clamping work; according to the device, by arranging the balance weight frame, balance weights with different weights can be added into the balance weight frame to assist the automatic clamping tongs to conduct stable clamping work, and when the working environment of the cross beam lifting hook starting assembly is suitable, a positioning auxiliary device does not need to be used for auxiliary work; the positioning auxiliary device adopts positioning and clamping adaptive work, so that the use stability of the whole device is greatly improved, and the problem that the clamping and positioning efficiency is reduced due to relatively large wind resistance when the lifting hook body works is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, and more specifically, to a bridge gantry crane with a lower crossbeam hook. Background Art

[0002] Currently, bridge cranes are used as lifting equipment, suspended horizontally above workshops, warehouses, and material yards to lift materials. Because their ends rest on tall concrete columns or metal supports, they resemble a bridge. The bridge crane's girder runs longitudinally along tracks laid on elevated platforms on either side, fully utilizing the space beneath it to lift materials without being obstructed by ground-based equipment. It is the most widely used and numerous type of lifting machinery. Cranes typically utilize a trolley mounted on a main beam, with a drum mounted on the trolley, which lifts cargo using a hook.

[0003] In the prior art, the hook provided at the output end of the bridge crane is greatly affected by the external airflow. The strong wind in the external environment causes the hook to move unstably, resulting in a long clamping time and low clamping efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a bridge gantry crane with a lower crossbeam hook to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crossbeam hook added to a gantry crane, comprising a support frame, wherein the upper and lower ends of the support frame are provided with a crossbeam hook stabilization protection device, and the crossbeam hook stabilization protection device includes: a positioning auxiliary device and a crossbeam hook starting assembly.

[0006] In a preferred embodiment, the beam hook starting assembly includes: a driver, a beam rod, a lifting rope, a retractor and a hook body, the upper end of the hook body is installed on the lower end of the retractor, the upper end of the retractor is installed on the lower end of the lifting rope, the upper end of the lifting rope is installed on the output end of the driver, and the lower end of the driver is installed on the upper end of the beam rod.

[0007] In a preferred embodiment, the positioning auxiliary device includes: a counterweight frame, a counterweight weight, a placement platform, an electric hydraulic cylinder and an automatic clamping gripper, and the rear end of the automatic clamping gripper is installed at the front end of the placement platform.

[0008] In a preferred embodiment, the upper end of the placement platform is mounted on the output end of the electric hydraulic cylinder, and the upper end of the electric hydraulic cylinder is mounted on the lower end of the beam rod.

[0009] In a preferred embodiment, the lower end of the counterweight frame is installed on the upper end of the other side of the placement platform, and the counterweight weight is detachably installed inside the counterweight frame.

[0010] In a preferred embodiment, two groups of positioning auxiliary devices are provided, and the upper ends of the two groups of positioning auxiliary devices are respectively installed on the lower ends of the crossbeam rod body.

[0011] In a preferred embodiment, the size of the output end of the automatic clamping gripper matches the size of the upper end of the automatic clamping gripper, and the automatic clamping gripper is detachably mounted on the upper end of the hook body.

[0012] The technical effects and advantages of this utility model are:

[0013] A crossbeam hook for a gantry crane. Compared with the existing technology, after the automatic clamping gripper is positioned, it prevents the hook body from being affected by wind and unable to be positioned for accurate clamping. The device can add counterweights of different weights inside the counterweight frame to assist the automatic clamping gripper in performing stable clamping work by setting a counterweight frame. When the working environment of the crossbeam hook starting component is suitable, there is no need to use the positioning auxiliary device for auxiliary work. The positioning auxiliary device adopts positioning and clamping adaptation to greatly improve the use stability of the entire device, and avoids the problem of reduced clamping and positioning efficiency due to large wind resistance when the hook body is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a structural diagram of the beam hook stabilization protection device of the present utility model.

[0016] Figure 3 This is a schematic structural diagram of the beam hook starting assembly of the present utility model.

[0017] Figure 4 This is a structural diagram of the positioning auxiliary device of the present utility model.

[0018] The accompanying drawings are marked as follows: 1. Support frame; 2. Beam hook stabilization protection device; 21. Beam hook starting assembly; 211. Driver; 212. Beam rod; 213. Lifting rope; 214. Retractor; 215. Hook body; 22. Positioning auxiliary device; 221. Electric hydraulic cylinder; 222. Counterweight frame; 223. Counterweight; 224. Placement table; 225. Automatic clamping gripper. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] As attached Figure 1-4 As shown, the utility model provides a crossbeam hook for a gantry crane, comprising a support frame 1, wherein the upper and lower ends of the support frame 1 are provided with a crossbeam hook stabilization protection device 2, and the crossbeam hook stabilization protection device 2 comprises: a positioning auxiliary device 22 and a crossbeam hook starting assembly 21.

[0021] The beam hook starting assembly 21 includes: a driver 211, a beam rod body 212, a lifting rope 213, a retractor 214 and a hook body 215. The upper end of the hook body 215 is installed on the lower end of the retractor 214, the upper end of the retractor 214 is installed on the lower end of the lifting rope 213, the upper end of the lifting rope 213 is installed on the output end of the driver 211, and the lower end of the driver 211 is installed on the upper end of the beam rod body 212. There are two groups of positioning auxiliary devices 22, and the upper ends of the two groups of positioning auxiliary devices 22 are respectively installed on the lower ends of the beam rod body 212.

[0022] The positioning auxiliary device 22 includes: a counterweight frame 222, a counterweight 223, a placement platform 224, an electric hydraulic cylinder 221 and an automatic clamping gripper 225. The rear end of the automatic clamping gripper 225 is installed at the front end of the placement platform 224, the upper end of the placement platform 224 is installed at the output end of the electric hydraulic cylinder 221, the upper end of the electric hydraulic cylinder 221 is installed at the lower end of the beam rod 212, the lower end of the counterweight frame 222 is installed at the upper end of the other side of the placement platform 224, the counterweight 223 is detachably installed inside the counterweight frame 222, the model size of the output end of the automatic clamping gripper 225 is adapted to the model size of the upper end of the automatic clamping gripper 225, and the automatic clamping gripper 225 is detachably installed at the upper end of the hook body 215.

[0023] The specific implementation method is as follows: when using the utility model, it is necessary to first start the crossbeam hook starting component 21 to start the tense clamping and lifting work. When the crossbeam hook starting component 21 starts the operation and the external wind force is large, the positioning auxiliary device 22 can be started. The electric hydraulic cylinder 221 set inside the positioning auxiliary device 22 starts the automatic clamping gripper 225 installed at the electric output end to move downward. When the automatic clamping gripper 225 moves to the same horizontal plane as the hook body 215, the automatic clamping gripper 225 performs the clamping and positioning work. After the automatic clamping gripper 225 is positioned, it avoids The hook-free body 215 is affected by wind and cannot be positioned for accurate clamping. The device sets a counterweight frame 222 to add counterweights 223 of different weights inside the counterweight frame 222 to assist the automatic clamping gripper 225 in performing stable clamping. When the working environment of the beam hook starting component 21 is suitable, there is no need to use the positioning auxiliary device 22 for auxiliary work. The positioning auxiliary device 22 adopts positioning and clamping adaptation to greatly improve the stability of the entire device, and avoids the problem of reduced clamping and positioning efficiency due to large wind resistance when the hook body 215 is working.

[0024] Working principle of the present invention: When using the present invention, it is necessary to first start the crossbeam hook starting assembly 21 to perform the tense clamping and lifting work. When the external wind force is large when the crossbeam hook starting assembly 21 starts the operation, the positioning auxiliary device 22 can be started. The electric hydraulic cylinder 221 arranged inside the positioning auxiliary device 22 starts the automatic clamping gripper 225 installed at the electric output end to move downward. When the automatic clamping gripper 225 moves to the same horizontal plane as the hook body 215, the automatic clamping gripper 225 is used to perform the clamping and positioning work. After the automatic clamping gripper 225 is positioned, the hook body 215 is prevented from being affected by the wind and unable to be positioned for accurate clamping. The device can add counterweight weights 223 of different weights to the counterweight frame 222 to assist the automatic clamping gripper 225 in performing stable clamping work by setting a counterweight frame 222. When the working environment of the crossbeam hook starting assembly 21 is suitable, there is no need to use the positioning auxiliary device 22 for auxiliary work.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0026] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0027] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gantry crane with a lower crossbeam hook, comprising a support frame (1), characterized in that: The support frame (1) is provided with a crossbeam hook stabilization protection device (2) at the upper and lower ends; The crossbeam hook stabilization protection device (2) comprises a positioning auxiliary device (22) and a crossbeam hook starting assembly (21).

2. The gantry crane lower beam hook according to claim 1, characterized in that: The crossbeam hook starting assembly (21) comprises: a driver (211), a crossbeam rod (212), a lifting rope (213), a retractor (214) and a hook body (215), wherein the upper end of the hook body (215) is mounted on the lower end of the retractor (214), the upper end of the retractor (214) is mounted on the lower end of the lifting rope (213), the upper end of the lifting rope (213) is mounted on the output end of the driver (211), and the lower end of the driver (211) is mounted on the upper end of the crossbeam rod (212).

3. The crossbeam hook for a gantry crane according to claim 2, characterized in that: The positioning auxiliary device (22) comprises: a counterweight frame (222), a counterweight (223), a placement platform (224), an electric hydraulic cylinder (221), and an automatic clamping gripper (225), wherein the rear end of the automatic clamping gripper (225) is mounted on the front end of the placement platform (224).

4. The crossbeam hook for a gantry crane according to claim 3, characterized in that: The upper end of the placement platform (224) is mounted on the output end of the electric hydraulic cylinder (221), and the upper end of the electric hydraulic cylinder (221) is mounted on the lower end of the crossbeam rod (212).

5. The crossbeam hook for a gantry crane according to claim 3, characterized in that: The lower end of the counterweight frame (222) is mounted on the upper end of the other side of the placement platform (224), and the counterweight (223) is detachably mounted inside the counterweight frame (222).

6. The crossbeam hook for a gantry crane according to claim 3, characterized in that: Two groups of positioning auxiliary devices (22) are provided, and the upper ends of the two groups of positioning auxiliary devices (22) are respectively mounted on the lower ends of the crossbeam rod bodies (212).

7. The crossbeam hook for a gantry crane according to claim 3, characterized in that: The size of the output end of the automatic clamping gripper (225) is adapted to the size of the upper end of the automatic clamping gripper (225), and the automatic clamping gripper (225) is detachably mounted on the upper end of the hook body (215).

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