Overturn-preventing structure of portal crane

Abstract

The utility model discloses an anti-overturning structure of a portal crane. The anti-overturning structure comprises a limiting part arranged on an accompanying trolley and an anti-overturning ground anchor anchored at a track foundation. The limiting part is provided with limiting components located on the two sides of the track respectively. The anti-overturning ground anchor extends upwards to form a blocking end, and the blocking end is located on the moving track of the limiting component and can block the limiting component. The anti-overturning structure of the portal crane is a secondary protection device, and the limiting component interacts with the anti-overturning ground anchor, so that the crane is effectively prevented from overturning, and the running safety of the crane is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to door type crane equipment technical field, concretely relates to a door type crane's anti-overturning structure. BACKGROUND

[0002] Door type cranes are widely used in industrial production, logistics loading and unloading and other fields. However, due to its working characteristics, there is a risk of overturning caused by various factors during the movement of the door type crane. Once an overturning accident occurs, not only will the crane itself be damaged, but also it may pose a serious safety threat to the surrounding personnel and facilities, causing huge economic losses.

[0003] In the prior art, an obstacle is arranged at the terminal of the track of the door type crane. When the door type crane moves towards the obstacle during normal operation, a braking and deceleration system is started, and the door type crane will eventually stop at a position close to the obstacle. However, this way of arranging obstacles still has some deficiencies, such as in windy weather, the door type crane is easily blown and rigidly collides with the obstacle.

[0004] The conventional door type crane has certain limitations in anti-overturning, and lacks effective targeted devices to deal with the overturning hazards under complex working conditions. Therefore, it is of great practical significance to develop a reliable door type crane anti-overturning device. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide an anti-overturning structure of a door type crane. The purpose of designing the anti-overturning structure is to increase the secondary protection and improve the safety performance of the door type crane.

[0006] To solve the above technical problems, the utility model realizes the following scheme: the utility model provides an anti-overturning structure of a door type crane, which comprises:

[0007] A limiting part is arranged on the travelling trolley, and the limiting part has limiting members arranged on both sides of the track;

[0008] An anti-overturning ground anchor is anchored to the ground foundation of the track, and the anti-overturning ground anchor extends upward to form a blocking end, and the blocking end is on the moving track of the limiting members and can block the limiting members.

[0009] Further, the limiting part comprises:

[0010] An elongated rear support wheel assembly, and the support wheel assembly moves along the track;

[0011] A pull rod connected to the travelling trolley at one end and connected to the extension part of the support wheel assembly at the other end, and the pull rod is installed in an inclined support structure;

[0012] A hanger is fixed to the extension of the support wheel assembly, and the lower ends of the hanger are provided with the limiting members.

[0013] Further, the anti-overturning anchor includes one of a U-shaped structural member and a rod.

[0014] Further, the limiting member or the anti-overturning anchor is provided with a buffer structure, or both the limiting member and the anti-overturning anchor are provided with a buffer structure.

[0015] Still further, the buffer structure includes one of a flexible pad mounting structure and a spring mounting structure.

[0016] Further, the anti-overturning anchor extends out of the ground to a height lower than the height of the track.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. The anti-overturning structure of the portal crane is a secondary protection device, the limiting member and the anti-overturning anchor interact to effectively prevent the overturning of the crane, and greatly improve the safety of the operation of the crane.

[0019] 2. The structure design of the limiting part includes the lengthened rear support wheel assembly, the oblique support type pull rod and the hanger, so that the limiting part can accurately cooperate with the anti-overturning anchor while ensuring the structural stability, and the anti-overturning effect is improved.

[0020] 3. The anti-overturning anchor has various structural forms, and the U-shaped structural member or the rod can be selected according to actual needs, so that the applicability of the utility model is increased.

[0021] 4. The buffer structure is arranged on the limiting member or the anti-overturning anchor, so that the impact force when the two collide can be effectively reduced, the equipment is protected, and the service life of the equipment is prolonged.

[0022] 5. The anti-overturning anchor extends out of the ground to a height lower than the height of the track, so that interference and collision with the car speed reducer are avoided, and the reasonable distance of the anchor from the center of the track is set, so that the normal width of the hanger is ensured, and the overall reliability of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural diagram of the portal crane in the prior art.

[0024] Figure 2 It is a structural diagram of the portal crane of the utility model.

[0025] Figure 3 It is a sectional view of the anti-overturning structure of the utility model.

[0026] Figure 4 It is the side surface structure schematic view of the anti-overturning structure of the utility model.

[0027] Figure 5 It is the setting area schematic view of the anti-overturning ground anchor of the utility model.

[0028] Figure 6 It is the U-shaped structure member schematic view of the anti-overturning ground anchor of the utility model.

[0029] Figure 7 It is the rod member structure schematic view of the anti-overturning ground anchor of the utility model.

[0030] Figure 8 It is the structure schematic view of the anti-overturning ground anchor of the utility model after adding spring.

[0031] The marks in the drawing are: accompanying trolley 1, pull rod 2, supporting wheel assembly 3, hanger 4, anti-overturning ground anchor 5, track 6, limiting component 41, spring 51. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and definitely defined. Obviously, the described embodiments of the utility model are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] In addition, the technical features involved in different embodiments of the utility model described below can be combined with each other as long as there is no conflict.

[0034] Generally, the terminal of the gantry crane needs to be configured with an obstacle to prevent the gantry crane from leaving the track.

[0035] Under normal circumstances, the gantry crane can be completely stopped at a distance a from the obstacle. As shown in the left side of the figure, the right side a is the distance left by the gantry crane after being completely stopped from the obstacle. The left side a area is the installation area of the anti-overturning ground anchor 5. Figure 5

[0036] Embodiment 1: The specific structure of the utility model is as follows:

[0037] Please refer to the attached Figures 2-4 ​The utility model discloses a portal crane's anti-overturning structure, including being located in the limiting portion of the trolley, the anchoring of anti-overturning ground anchor 5 of track 6 ground. The limiting portion has the limiting component 41 of the separation of track 6 both sides.

[0038] The anti-overturning ground anchor 5 is anchored to the anti-overturning ground anchor 5 of track 6 ground, and the anti-overturning ground anchor 5 extends upward to form a blocking end, which is on the movement trajectory of the limiting component 41 and can block the limiting component 41.

[0039] The limiting portion includes:

[0040] The extended rear support wheel assembly 3, and the support wheel assembly 3 moves along the track 6;

[0041] The pull rod 2 is connected to the trolley 1 at one end and to the extension of the support wheel assembly 3 at the other end, and the pull rod 2 is installed in an inclined support structure.

[0042] The hanger 4 is fixed to the extension of the support wheel assembly 3, and the limiting components 41 are on both sides of the lower end of the hanger 4. The hanger 4 is fixed to the extension of the support wheel assembly, and the limiting components on both sides of the lower end of the hanger are separated on both sides of the track.

[0043] The anti-overturning ground anchor 5 includes a U-shaped structural member and a rod member, and the U-shaped structural member is preferred in this embodiment.

[0044] The limiting component 41 or the anti-overturning ground anchor 5 is provided with a buffer structure, or both the limiting component 41 and the anti-overturning ground anchor 5 are provided with a buffer structure. The buffer structure of this embodiment includes one or a combination of the following.

[0045] The buffer structure includes one of a flexible pad mounting structure and a spring mounting structure. As shown in Figure 8 The spring 51 is provided on the upper end side of the anti-overturning ground anchor 5 and in the path of movement of the limiting component 41. The anti-overturning structure of the portal crane of the utility model is a secondary protection device, and the limiting component interacts with the anti-overturning ground anchor to effectively prevent the overturning of the crane, greatly improving the safety of the operation of the crane.

[0046] The height of the anti-overturning ground anchor 5 above the ground is lower than the height of the track 6, avoiding interference and collision with the car speed reducer.

[0047] Embodiment 2:

[0048] The following is a detailed description of the anti-overturning structure of the portal crane:

[0049] The anti-overturning ground anchor of the utility model is set, when the crane car walks to the end head and is limited by the travel switch to stop, the position of the trolley and the hanger is determined, and this position is the installation position of the anti-overturning ground anchor.

[0050] The anti-overturning ground anchor of the utility model needs to resist the overturning tension of the whole machine, so when selecting materials and designing structure, it needs to ensure that its capacity is enough and it has passed strict anti-pulling test.

[0051] The height of the anti-overturning ground anchor 5 cannot exceed the track surface, and the distance between the anti-overturning ground anchor 5 and the track center is 280mm±5mm. During the installation process, the construction is strictly carried out according to this size requirement to avoid the influence of the super-wide on the width setting of the hanger and prevent the interference collision of the car speed reducer.

[0052] Embodiment 3:

[0053] The working process of the anti-overturning structure of the portal crane:

[0054] When the portal crane operates normally, the trolley drives the limiting part to move along the track.

[0055] When the crane has an overturning trend, for example, suddenly encounters strong wind during the lifting of heavy objects, the crane moves towards the obstacle, at this time, the limiting member of the limiting part moves to the blocking end position of the anti-overturning ground anchor, the blocking end of the anti-overturning ground anchor blocks the limiting member, thereby preventing the crane from overturning and playing an anti-overturning role.

[0056] If the limiting member 41 or the anti-overturning ground anchor is provided with a buffer structure, for example, a flexible pad is installed on the limiting member, when the limiting member collides with the anti-overturning ground anchor, the flexible pad can buffer the impact force between the two, reducing the damage of the equipment.

[0057] In summary, the anti-overturning structure of the portal crane is a secondary protection device, the limiting member and the anti-overturning ground anchor interact to effectively prevent the crane from overturning, greatly improving the safety of the crane operation. The structural design of the limiting part, including the lengthened rear support wheel assembly, the oblique support type pull rod and the hanger, can accurately cooperate with the anti-overturning ground anchor while ensuring the stability of the structure, improving the anti-overturning effect. The structure of the anti-overturning ground anchor is various, and U-shaped structural members or rods can be selected according to actual needs, increasing the applicability of the utility model. The setting of the buffer structure can effectively reduce the impact force when the limiting member and the anti-overturning ground anchor collide, protecting the equipment and prolonging the service life of the equipment. The anti-overturning ground anchor of the utility model extends out of the ground with a height lower than the track height, avoiding interference collision with the car speed reducer, and at the same time, the reasonable distance between the ground anchor and the track center ensures the normal width setting of the hanger, improving the overall reliability of the equipment.

[0058] The above merely describes preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A roll-over prevention structure of a portal crane, characterized by, The utility model relates to a kind of rail-mounted crane, including: Limiting part of accompanying trolley is arranged, the limiting part has the limiting member (41) of the two sides of separate track (6); Anti-overturning ground anchor (5) is anchored to the foundation of the track (6), and the anti-overturning ground anchor (5) extends upwards to form a blocking end, and the blocking end is on the moving track of the limiting member (41) and can block the limiting member (41).

2. The overturning prevention structure of a portal crane according to claim 1, characterized in that, The limiting part includes: Extended rear support wheel assembly (3), support wheel assembly (3) moves along the track (6); Pull rod (2) is connected to accompanying trolley (1) at one end, and the other end is connected with the extension of support wheel assembly (3), and the pull rod (2) is installed in inclined bracing type structure; Hanger (4) is fixed to the extension of support wheel assembly (3), and the lower end of the hanger (4) is the limiting member (41) on both sides.

3. The overturning prevention structure of a portal crane according to claim 1, characterized in that, The anti-overturning ground anchor (5) includes one of U-shaped structural member and rod.

4. The overturning prevention structure of a portal crane according to claim 1, characterized in that, The limiting member (41) or the anti-overturning ground anchor (5) is provided with a buffer structure, or the limiting member (41) and the anti-overturning ground anchor (5) are both provided with a buffer structure.

5. A structure for preventing overturning of a portal crane according to claim 4, wherein The buffer structure includes one of flexible pad mounting structure and spring mounting structure.

6. The overturning prevention structure of a portal crane according to claim 1, wherein The height of the anti-overturning ground anchor (5) extending out of the ground is lower than the height of the track (6).

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