Lifting buffer device for gantry crane

Abstract

The utility model provides a lifting buffer device for a gantry crane, which comprises a lifting buffer device arranged below a winch and connected with a winch mounting plate through bolts, and a bottom fixing plate connected with a winch lower support structure. The lifting buffering device further comprises six buffering single bodies which are arranged with the center of the winch installation plate as the circle center, the buffering single bodies are connected with the winch installation plate through bolts, the buffering single bodies are connected with the bottom fixing plate through bolts, sliding blocks and damping springs are arranged on the buffering single bodies, and the sliding blocks and the damping springs are symmetrically arranged with the installation center of the buffering single bodies as the center. According to the lifting buffer device for the gantry crane, shaking of goods can be reduced, the accuracy and safety of operation are improved, and a more stable and safer working environment is provided for operators.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of portal crane equipment, especially relates to a hoisting buffer device for portal crane. BACKGROUND

[0002] The portal crane is a kind of hoisting equipment widely used in port, wharf and warehouse etc. It is mainly composed of portal, rotating platform, hoisting arm and travelling mechanism etc. The hoisting buffer device of portal crane is an important component to ensure the safety of hoisting operation and reduce impact. This device is usually installed between winch and lifting hook, used to absorb and buffer the impact force generated in hoisting and lowering process, so as to protect the structure and mechanical components of crane, prolong the service life of equipment, and improve the safety of operation.

[0003] At present, due to the use of winch active drive in the hoisting process of portal crane, and the driving force of winch is large, which leads to large deviation of lifting appliance in hoisting process due to instantaneous acceleration or deceleration, causing large swing in cargo suspension process, resulting in unstable phenomenon in cargo hoisting process. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims at providing a hoisting buffer device for portal crane to solve the problem that the cargo hoisting process is prone to unstable phenomenon due to the use of winch active drive, and the driving force of winch is large, which leads to large deviation of lifting appliance in hoisting process due to instantaneous acceleration or deceleration, causing large swing in cargo suspension process.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] The utility model provides a hoisting buffer device for portal crane, which comprises that the hoisting buffer device is arranged below winch, and it is connected with winch mounting plate through bolt, bottom fixed plate is connected with winch lower support structure, the hoisting buffer device further comprises six buffer units arranged with winch mounting plate center as circle center, the buffer unit is connected with winch mounting plate through bolt, the buffer unit is connected with bottom fixed plate through bolt, sliding block and shock absorbing spring are arranged on the buffer unit, the sliding block and shock absorbing spring are symmetrically arranged with the installation center of buffer unit.

[0007] Further, the damping link fixing seat is connected with the hoist mounting plate, one end of the damping link is connected with the damping link fixing seat through a bearing, the other end of the one end of the damping link is connected with the sliding block upper fixing plate, the sliding block upper fixing plate is locked with the sliding block, the sliding block is slidingly installed on the moving guide rail, the moving guide rail is locked with the bottom fixing plate, the sliding block upper fixing plate is fixed with the locking plate, the back of the locking plate is fixed with the sliding block guide rod, the sliding block guide rod is installed with the damping spring, the other end of the damping spring is pressed on the first mounting plate, the first mounting plate is connected with the reinforcing fixing plate, and the reinforcing fixing plate is connected with the bottom fixing plate.

[0008] Further, the sliding block upper fixing plate is L-shaped, the horizontal end surface of the sliding block upper fixing plate is locked with the upper end surface of the sliding block, and the vertical end surface of the sliding block upper fixing plate is locked with the locking plate.

[0009] Further, any two buffer units are fixed on the same moving guide rail, and the two buffer units are symmetrically arranged, the damping links are respectively connected with different buffer units, and the directions of the damping links on the same moving guide rail are arranged with the axis center.

[0010] Further, the reinforcing fixing plate is triangular, one right angle side of the reinforcing fixing plate is welded with the first mounting plate, and the other right angle side of the reinforcing fixing plate is welded with the bottom fixing plate.

[0011] Compared with the prior art, the lifting buffer device for the portal crane has the following advantages: the lifting buffer device of the utility model is provided with six buffer units on the center of the hoist mounting plate in a symmetrical manner, the impact force can be dispersed on multiple buffer units instead of being concentrated on a certain point, mechanical damage of the hoist caused by instantaneous impact force in the lifting and lowering process is effectively reduced, the service life of the hoist and the transmission system of the portal crane is prolonged, the goods shaking is reduced, the operation precision and safety are improved, and a more stable and safer working environment is provided for the operator. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings constituting a part of the utility model are used to provide further understanding of the utility model, and the schematic embodiment of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model.

[0013] In the drawings:

[0014] Fig. 1 The axial side schematic view of the lifting buffer device for the portal crane is described in the embodiment of the utility model;

[0015] Fig. 2 The front view schematic view of the lifting buffer device for the portal crane is described in the embodiment of the utility model;

[0016] Fig. 3 Figure 6 is a schematic view in plan view of the hoist mounting plate of the hoisting buffer device for the portal crane according to the embodiment of the present application.

[0017] Reference signs:

[0018] 1, hoist mounting plate; 2, bottom fixed plate; 3, reinforcing fixed plate; 4, first mounting plate; 5, damping spring; 6, locking plate; 7, sliding block upper fixed plate; 8, damping connecting rod; 9, moving guide rail; 10, sliding block; 11, damping connecting rod fixed seat. DETAILED DESCRIPTION

[0019] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0021] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0023] Reference Figs. 1-3As shown, the embodiment provides a lifting buffer device for a portal crane, which is arranged below a winch and connected to a winch mounting plate 1 through bolts, and a bottom fixing plate 2 is connected to a lower support structure of the winch. The lifting buffer device further comprises six buffer units arranged with the center of the winch mounting plate 1 as the center, and the buffer units are connected to the winch mounting plate 1 through bolts and connected to the bottom fixing plate 2 through bolts. A sliding block 10 and a damping spring 5 are arranged on the buffer unit, and the sliding block 10 and the damping spring 5 are symmetrically arranged with the mounting center of the buffer unit.

[0024] Specifically, in the embodiment, the damping link fixed seat 11 is connected to the winch mounting plate 1, one end of the damping link fixed seat 11 is connected to one end of the damping link 8 through a bearing, the other end of one end of the damping link 8 is connected to the sliding block upper fixing plate 7, the sliding block upper fixing plate 7 is locked with the sliding block 10, the sliding block 10 is slidingly mounted on the moving guide rail 9, the moving guide rail 9 is locked with the bottom fixing plate 2, the sliding block upper fixing plate 7 is fixed with the locking plate 6, the locking plate 6 is fixed with the sliding block guide rod at the back, the sliding block guide rod is mounted with the damping spring 5, the other end of the damping spring 5 is pressed on the first mounting plate 4, the first mounting plate 4 is connected to the reinforcing fixing plate 3, and the reinforcing fixing plate 3 is connected to the bottom fixing plate 2.

[0025] Specifically, in the embodiment, the sliding block upper fixing plate 7 is L-shaped, the horizontal end face of the sliding block upper fixing plate 7 is locked with the upper end face of the sliding block 10, and the vertical end face of the sliding block upper fixing plate 7 is locked with the locking plate 6.

[0026] Specifically, in the embodiment, any two buffer units are fixed on the same moving guide rail 9, and the two buffer units are symmetrically arranged, the damping link 8 is connected to different buffer units, and the orientation of the damping link 8 on the same moving guide rail 9 is arranged with the axis center.

[0027] Specifically, in the embodiment, the reinforcing fixing plate 3 is triangular, one of the right angles is welded with the first mounting plate 4, and the other of the right angles is welded with the bottom fixing plate 2.

[0028] The lifting buffer device can effectively reduce the mechanical damage of the winch caused by instantaneous impact force during lifting and lowering, prolong the service life of the winch and the transmission system of the portal crane, reduce the shaking of the goods, improve the precision and safety of the operation, and provide a more stable and safer working environment for the operators.

[0029] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hoisting buffer device for a portal crane, characterized in that The lifting buffer device is arranged below the hoist, and is connected with the hoist mounting plate (1) through bolts, and the bottom fixed plate (2) is connected with the lower support structure of the hoist, the lifting buffer device further comprises six buffer units arranged with the center of the hoist mounting plate (1) as the center, the buffer units are connected with the hoist mounting plate (1) through bolts, the buffer units are connected with the bottom fixed plate (2) through bolts, the buffer units are provided with sliding blocks (10) and damping springs (5), and the sliding blocks (10) and the damping springs (5) are symmetrically arranged with the mounting center of the buffer units.

2. A hoisting buffer device for a portal crane according to claim 1, characterized in that In the buffer unit, the damping connecting rod fixed seat (11) is connected with the hoist mounting plate (1), one end of the damping connecting rod fixed seat (11) is connected with one end of the damping connecting rod (8) through a bearing, the other end of one end of the damping connecting rod (8) is connected with the sliding block upper fixed plate (7), the sliding block upper fixed plate (7) is locked with the sliding block (10), the sliding block (10) is slidingly installed on the moving guide rail (9), the moving guide rail (9) is locked with the bottom fixed plate (2), the sliding block upper fixed plate (7) is fixed with the locking plate (6), the locking plate (6) is fixed with the sliding block guide rod at the back, the sliding block guide rod is installed with the damping spring (5), the other end of the damping spring (5) is pressed on the first mounting plate (4), the first mounting plate (4) is connected with the reinforcing fixed plate (3), the reinforcing fixed plate (3) is connected with the bottom fixed plate (2).

3. A hoisting buffer device for a portal crane according to claim 2, characterized in that The sliding block upper fixed plate (7) is L-shaped, the horizontal end face of the sliding block upper fixed plate (7) is locked with the upper end face of the sliding block (10), and the vertical end face of the sliding block upper fixed plate (7) is locked with the locking plate (6).

4. A hoisting buffer device for a portal crane according to claim 3, characterized in that Any two buffer units are fixed on the same moving guide rail (9), and the two buffer units are symmetrically arranged, the damping connecting rods (8) are respectively connected with different buffer units, and the directions of the damping connecting rods (8) on the same moving guide rail (9) are arranged with the axis center.

5. A hoisting buffer device for a portal crane according to claim 2, characterized in that The reinforcing fixed plate (3) is triangular, one of the right angles is welded with the first mounting plate (4), and the other of the right angles is welded with the bottom fixed plate (2).

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