Anti-tipping structure of crane trolley

Abstract

The utility model relates to a crane trolley anti-tipping structure in the technical field of cranes, which comprises a mounting plate, a V-shaped frame and a steel wheel, a pin shaft is arranged at the lower section of the inner plate surface of the mounting plate, and a first mounting hole which is correspondingly and rotationally connected with the pin shaft is formed in the closed end of the V-shaped frame; the opening end of the V-shaped frame faces upwards, and second mounting holes connected with a steel wheel shaft are formed in the two ends of the opening end of the V-shaped frame correspondingly. The axle of the steel wheel can radially deviate along the central axis relative to the V-shaped frame and / or the closed end of the V-shaped frame can radially deviate along the rotary central axis relative to the mounting plate; the anti-rollover structure is simple in structure and convenient to install, due to the arrangement of the V-shaped frame, the assembly tolerance of the anti-rollover structure can be compensated through rotation of the V-shaped frame, and therefore it can be better guaranteed that the top of the steel wheel is attached to the lower plate face of the main beam flange plate or only a micro gap exists between the top of the steel wheel and the lower plate face of the main beam flange plate during installation; the vertical positioning accuracy of the travelling crane is effectively improved, and the potential safety hazard of tipping in the travelling crane operation process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane technical field especially crane trolley anti -tipping structure. BACKGROUND

[0002] At present, the anti -tipping device on the existing crane trolley mainly adopts L type anti -tipping hook, including anti -tipping hook long side top through bolt direct installation to trolley end beam both sides, and anti -tipping hook short side extends to the main beam flange plate below, and anti -tipping hook short side and main beam flange plate between reserve certain gap, avoid trolley in the running process the influence of main beam welding deformation, the anti -tipping device of this kind of structural form simple, convenient installation, but only can satisfy the crane industry on precision is not high and the scene of simple work environment.

[0003] However, with the development of society and the continuous innovation of information technology, intelligent trolley has realized automatic handling, transfer, grabbing and stacking functions, but the actual work environment is complex and changeable, and it is difficult to ensure the smooth operation and accurate positioning requirements by simply relying on intelligent trolley and traditional anti -tipping device. Especially in some work environments, the trolley exists horizontal tipping force, which affects the vertical positioning accuracy of the trolley, and there is certain safety hazard.

[0004] Therefore, we design a crane trolley anti -tipping structure. UTILITY MODEL CONTENT

[0005] In order to overcome the deficiency in the background art, the utility model discloses a crane trolley anti -tipping structure.

[0006] In order to realize the above-mentioned utility model purposes, the utility model adopts the following technical scheme:

[0007] A crane trolley anti -tipping structure, including installation board, V type frame and steel wheel, the inside board surface lower section of installation board is equipped with pin shaft, the closed end of V type frame is equipped with the first installation hole of corresponding rotation connection with pin shaft, the open end of V type frame is upward, and both ends of V type frame open end are equipped with the second installation hole connected with steel wheel axle;

[0008] Among them, the steel wheel axle can be radially offset relative to the central axis of V type frame and / or the central axis of rotation of V type frame closed end relative to installation board.

[0009] Preferably, the flexible sleeve is arranged between the pin shaft and the first installation hole and / or between the steel wheel axle and the second installation hole.

[0010] Preferably, the mounting plate is L-shaped, two third mounting holes are arranged on the short side of the mounting plate along the width direction of the short side; a connecting frame is arranged on the inner side of the mounting plate, the closed end of the V-shaped frame is connected to the middle part of the connecting frame through a pin shaft, the two end parts of the connecting frame are both provided with a connecting rod penetrating through the corresponding third mounting hole, the connecting rod body is matched with a compressible sleeve arranged at the position between the connecting frame and the short side of the mounting plate, and the connecting rod body is provided with a limiting piece at the position below the short side of the mounting plate.

[0011] Preferably, the compressible sleeve is a rubber sleeve or a disc spring.

[0012] Preferably, the third mounting hole has a larger diameter than the diameter of the connecting rod.

[0013] Preferably, the third mounting hole is a waist-shaped hole arranged along the width direction of the short side of the mounting plate.

[0014] By adopting the technical scheme, the utility model has the advantages of the following:

[0015] 1. Simple structure and convenient installation The V-shaped frame is arranged, the assembly tolerance of the anti-overturning structure can be compensated by the rotation of the V-shaped frame, so that the top of the steel wheel can be better ensured to be attached to the lower plate surface of the main beam flange plate or only have a small gap between the top of the steel wheel and the lower plate surface of the main beam flange plate, the positioning accuracy of the vertical traveling crane is effectively improved, and the safety hazard of overturning during the traveling crane operation is avoided.

[0016] 2. The steel wheel shaft can be radially offset relative to the center axis of the V-shaped frame and / or the closed end of the V-shaped frame relative to the rotation center axis of the mounting plate, so that the technical problem that the steel wheel and the lower plate surface of the main beam flange plate are stuck due to the large roughness of the lower plate surface of the main beam flange plate and the deformation of the main beam flange plate caused by welding with the main beam web is effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the first structure of the utility model;

[0018] Figure 2 It is a schematic view of the second structure of the utility model;

[0019] Figure 3 It is a right view of Figure 2

[0020] Figure 4 It is a schematic view of the second structure of the utility model after installation.

[0021] ​In the diagram: 1. Mounting plate; 11. Third mounting hole; 2. V-shaped bracket; 21. First mounting hole; 22. Second mounting hole; 3. Steel wheel; 4. Pin; 5. Flexible sleeve; 6. Connecting bracket; 7. Connecting rod; 8. Compressible sleeve; 9. Limiting component. Detailed Implementation

[0022] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0023] Combined with appendix Figures 1-4 A crane trolley anti-tipping structure includes a mounting plate 1 and a V-shaped frame 2. The lower section of the inner surface of the mounting plate 1 is provided with a pin 4. The closed end of the V-shaped frame 2 is provided with a first mounting hole 21 that is rotatably connected to the pin 4. The open end of the V-shaped frame 2 faces upward and both ends of the open end of the V-shaped frame 2 are provided with a second mounting hole 22 that is connected to the axle of the steel wheel 3.

[0024] During installation, the upper end of the mounting plate 1 is directly connected to the end beam of the crane trolley with bolts, and the top of the steel wheel 3 is in contact with the lower surface of the main beam flange plate, or there is only a slight gap between the top of the steel wheel 3 and the lower surface of the main beam flange plate.

[0025] Due to the V-shaped frame 2, its rotation can compensate for the assembly tolerance of the anti-tipping structure, thus better ensuring that the top of the steel wheel 3 is in contact with the lower surface of the main beam flange plate during installation, or that there is only a slight gap between the top of the steel wheel 3 and the lower surface of the main beam flange plate.

[0026] Due to the large surface roughness of the lower plate of the main beam flange and the deformation of the main beam flange due to welding with the main beam web, to prevent jamming between the steel wheel 3 and the lower plate of the main beam flange, the axle of the steel wheel 3 can be radially offset relative to the V-frame 2 along its central axis and / or the closed end of the V-frame 2 relative to the mounting plate 1 along its rotational central axis; that is, when the steel wheel 3 rolls to the position of the protrusion on the lower plate of the main beam flange, the steel wheel 3 can move downward relative to the V-frame 2, or the V-frame 2 can move downward relative to the mounting plate 1, so that the steel wheel 3 can smoothly pass through the position of the protrusion on the lower plate of the main beam flange.

[0027] In some possible implementation manners, the flexible sleeve 5 is arranged between the pin shaft 4 and the first mounting hole 21; or the flexible sleeve 5 is arranged between the wheel shaft of the steel wheel 3 and the second mounting hole 22. That is, when the steel wheel 3 rolls to the position of the convex point on the lower plate surface of the main beam flange plate, the steel wheel 3 can extrude the corresponding flexible sleeve 5 to move downward relative to the V-shaped frame 2, or the V-shaped frame 2 can extrude the corresponding flexible sleeve 5 to move downward relative to the mounting plate 1, so that the steel wheel 3 smoothly passes through the position of the convex point on the lower plate surface of the main beam flange plate. Figure 1 In some possible implementation manners, the flexible sleeve 5 is arranged between the pin shaft 4 and the first mounting hole 21; or the flexible sleeve 5 is arranged between the wheel shaft of the steel wheel 3 and the second mounting hole 22. That is, when the steel wheel 3 rolls to the position of the convex point on the lower plate surface of the main beam flange plate, the steel wheel 3 can extrude the corresponding flexible sleeve 5 to move downward relative to the V-shaped frame 2, or the V-shaped frame 2 can extrude the corresponding flexible sleeve 5 to move downward relative to the mounting plate 1, so that the steel wheel 3 smoothly passes through the position of the convex point on the lower plate surface of the main beam flange plate.

[0028] Figures 2-4 In some possible implementation manners, the flexible sleeve 5 is arranged between the pin shaft 4 and the first mounting hole 21; or the flexible sleeve 5 is arranged between the wheel shaft of the steel wheel 3 and the second mounting hole 22. That is, when the steel wheel 3 rolls to the position of the convex point on the lower plate surface of the main beam flange plate, the steel wheel 3 can extrude the corresponding flexible sleeve 5 to move downward relative to the V-shaped frame 2, or the V-shaped frame 2 can extrude the corresponding flexible sleeve 5 to move downward relative to the mounting plate 1, so that the steel wheel 3 smoothly passes through the position of the convex point on the lower plate surface of the main beam flange plate.

[0029] According to needs, the compressible sleeve 8 can be a rubber sleeve or a disc spring.

[0030] Further, the third mounting hole 11 has a larger diameter than the diameter of the connecting rod 7, or the third mounting hole 11 is a waist-shaped hole arranged along the width direction of the short side of the mounting plate 1.

[0031] According to needs, the connecting rod 7 can be a screw rod, and the limiting part 9 is a nut screwed on the screw rod.

[0032] When the connecting rod 7 is a screw rod, the upper end of the screw rod can be screwed on the connecting frame 6 or welded on the connecting frame 6.

[0033] According to needs, the connecting rod 7 can also be a bolt, and the limiting part 9 is the head of the bolt.

[0034] When the connecting rod 7 is a bolt, the connecting mode of the bolt and the connecting frame 6 can be set according to the connecting mode of the screw rod and the connecting frame 6.

[0035] It should be noted that after the anti-rollover structure is mounted to the end beam of the trolley of the crane, there is no force or only a small force between the steel wheel 3 and the lower plate surface of the main beam flange plate.

[0036] ​The utility model discloses the part of not detailed is prior art, for the person skilled in the art, apparently the utility model is not limited to the details of the above exemplary embodiments, and can realize the utility model with other specific forms without departing from the spirit or basic characteristics of the utility model, therefore, no matter from which point, should be regarded as exemplary, and is non - limitative, aims at including all changes in the meaning and range of equivalent elements in the utility model.

Claims

1. A trolley anti-tilt structure of a crane, characterized in that, It includes mounting plate (1), V-shaped frame (2) and steel wheel (3), the inner plate surface lower section of mounting plate (1) is equipped with pin shaft (4), the closed end of V-shaped frame (2) is equipped with the first installation hole (21) corresponding with the rotation connection of pin shaft (4), the opening end of V-shaped frame (2) is upward, and the both ends of V-shaped frame (2) opening end are equipped with the second installation hole (22) connected with the wheel axle of steel wheel (3); Wherein, the wheel axle of steel wheel (3) can be radially offset relative to the central axis of V-shaped frame (2) and / or the central axis of rotation of V-shaped frame (2) closed end relative to mounting plate (1).

2. The trolley anti-tip structure according to claim 1, characterized in that: Flexible sleeve (5) is arranged between pin shaft (4) and first installation hole (21) and / or between wheel axle of steel wheel (3) and second installation hole (22).

3. The trolley anti-tip structure of claim 1, wherein: The mounting plate (1) is L-shaped, and two third installation holes (11) are arranged on the short side of the mounting plate (1) along the width direction; a connecting frame (6) is arranged on the inner side of the mounting plate (1), the closed end of the V-shaped frame (2) is connected to the middle part of the connecting frame (6) through the pin shaft (4), the both ends of the connecting frame (6) are provided with connecting rods (7) penetrating through the corresponding third installation holes (11), the connecting rods (7) are matched with compressible sleeves (8) at the positions between the connecting frame (6) and the short side of the mounting plate (1), and limiters (9) are arranged at the positions of the connecting rods (7) below the short side of the mounting plate (1).

4. The anti-tipping structure of the trolley according to claim 3, characterized in that: The compressible sleeve (8) is a rubber sleeve or a disc spring.

5. The anti-tipping structure of the trolley according to claim 3, characterized in that: The third installation hole (11) has a larger diameter than the diameter of the connecting rod (7).

6. The anti-tipping structure of the trolley according to claim 3, characterized in that: The third installation hole (11) is a waist-shaped hole arranged along the width direction of the short side of the mounting plate (1). The third installation hole (11) is a waist-shaped hole arranged along the width direction of the short side of the mounting plate (1).

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