Overturn-preventing device for track of portal crane

Abstract

A portal crane rail overturn-preventing device comprises a bottom plate and an overturn-preventing device body, the bottom plate is provided with roller mounting holes and driving plate mounting holes, the back face of the bottom plate is provided with a rail containing space penetrating through the left side and the right side, and the two sides of the rail containing space are provided with telescopic plate mounting parts; the telescopic plate mounting part comprises a telescopic plate sliding groove, a telescopic plate spring pressing plate and a telescopic plate positioning plate; a telescopic plate spring hole is formed in the telescopic plate, one end of the telescopic plate spring extends into the telescopic plate spring hole, the other end of the telescopic plate spring abuts against the telescopic plate spring pressing plate, and the telescopic plate spring is in a compressed state.

Description

TECHNICAL FIELD

[0001] The present application relates to a crane rail brake and anti-overturning device. BACKGROUND

[0002] Portal crane is widely used in freight yard, warehouse, port and wharf for lifting heavy objects. Portal crane generally runs on fixed rail and relies on the movement of crane on the rail to move heavy objects to the car or ship. The existing brake device of crane brakes the wheel itself to stop the rotation of the wheel. However, when there is strong wind, especially when the wind reaches more than 8 levels, the wind will blow the crane. At this time, even if the wheels of the crane do not roll, the wheels will slide on the rail under the action of wind, causing the crane to move. When the crane moves to the end of the rail limiting device, the lower wheels stop moving under the action of the limiting device, but the upper part of the crane continues to move under the action of inertia, causing the crane to overturn. In recent years, there have been more than one such accident. Therefore, an anti-overturning device is needed. SUMMARY

[0003] A portal crane rail anti-overturning device, comprising a bottom plate, a brake device, a brake drive return device, an anti-overturning device,

[0004] The bottom plate is provided with a roller mounting hole, a drive plate mounting hole, and a back surface provided with a through left and right rail accommodating space, and the rail accommodating space is provided with a telescopic plate mounting portion and a wedge-shaped matching portion on both sides.

[0005] The telescopic plate mounting portion comprises a telescopic plate sliding groove, a telescopic plate spring pressing plate and a telescopic plate positioning plate.

[0006] The wedge-shaped matching portion and the center line of the rail accommodating space have an included angle, and the included angle is 3-10 degrees.

[0007] The bottom plate is further provided with a wedge-shaped block guide rail, and the wedge-shaped block guide rail is arranged in parallel with the wedge-shaped matching portion.

[0008] The brake device comprises a wedge-shaped pressing block, and the wedge-shaped pressing block is in a wedge-shaped structure.

[0009] One side of the wedge-shaped pressing block matches the wedge-shaped matching portion and can slide along the wedge-shaped matching portion; the other side of the wedge-shaped pressing block is parallel to the center line of the rail accommodating space.

[0010] The wedge-shaped pressing block is provided with a wedge-shaped block guide groove, and the wedge-shaped block guide groove matches the wedge-shaped block guide rail to make the wedge-shaped pressing block slide along the wedge-shaped block guide rail.

[0011] The bottom plate is also fixedly connected with a supporting plate, which is provided with a supporting plate guide rail at a position opposite to the wedge block guide rail, and the wedge block guide groove on the wedge block is matched with the supporting plate guide rail to make the wedge block slide along the supporting plate guide rail.

[0012] The brake driving return device comprises a brake driving device and a brake return device, the brake driving device comprises a wedge block guide column fixedly connected with the wedge block, a connecting plate hingedly connected with the wedge block guide column, a driving plate hingedly connected with the connecting plate, a driving plate guide column for guiding the sliding of the driving plate, a driving plate guide column mounting plate installed in parallel with the driving plate, and a driving plate spring arranged on the driving plate guide column and located between the driving plate and the driving plate guide column mounting plate; the driving plate spring is in a compressed state.

[0013] The bottom plate is provided with a wedge block guide column guide sleeve, which positions the wedge block guide column to make the wedge block guide column slide along a predetermined route.

[0014] The connecting plate is provided with pin holes at both ends for connecting with the wedge block guide column and the driving plate respectively.

[0015] The brake return device comprises a return motor, a return screw, and an electromagnet; the return screw moves axially under the driving of the return motor and can push the driving plate to move; the electromagnet can attract the driving plate so that the driving plate can not be pushed by the driving plate spring.

[0016] The electromagnet has magnetism when powered on to attract the driving plate, and has no magnetism when powered off, and the driving plate moves under the action of the driving plate spring.

[0017] The driving plate is provided with a magnetic material, and a buffer component is arranged between the magnetic material and the driving plate, and the buffer component is a spring, rubber or the like.

[0018] The anti-overturning device comprises a telescopic plate, a telescopic plate sliding groove, a telescopic plate spring, and a telescopic plate spring pressing plate.

[0019] The telescopic plate is provided with a telescopic plate spring hole, one end of the telescopic plate spring is inserted into the telescopic plate spring hole, the other end abuts against the telescopic plate spring pressing plate, and the telescopic plate spring is in a compressed state.

[0020] The telescopic plate is provided with a telescopic plate sliding rail, which can slide in the telescopic plate sliding groove.

[0021] The telescopic plate is provided with a telescopic plate inclined surface, which is a straight chamfer or a circular chamfer, or a curved chamfer.

[0022] The telescopic plate is provided with a telescopic plate roller groove in the telescopic plate sliding groove direction, and a telescopic plate roller is arranged in the telescopic plate roller groove.

[0023] The telescopic plate roller groove is provided with a roller pin hole above the telescopic plate roller groove, and the telescopic plate roller is positioned in the roller pin hole through a support.

[0024] The anti-overturning device further comprises a telescopic plate positioning plate, which limits the telescopic plate in the direction perpendicular to the track accommodating space. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1-2 It is a schematic diagram of the overall structure of the present application.

[0026] Fig. 3 It is a schematic diagram of the bottom plate structure of the present application.

[0027] Fig. 4 It is a schematic diagram of the telescopic plate mounting portion of the present application.

[0028] Fig. 5 It is a schematic diagram of the telescopic plate of the present application.

[0029] In the figure: 1-bottom plate, 12-telescopic plate, 13-telescopic plate spring pressing plate, 15-track accommodating space, 16-roller mounting hole, 17-driving plate mounting hole, 18-telescopic plate mounting portion, 22-telescopic plate sliding groove, 23-telescopic plate spring hole, 24-telescopic plate positioning plate, 25-telescopic plate inclined surface, 26-pin hole, 28-telescopic plate roller groove, 29-telescopic plate sliding rail. DETAILED DESCRIPTION

[0030] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0031] It should be noted that the terms "first", "second", and the like in the description and claims of the utility model and the above drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or equipment including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or equipment.

[0032] In the utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse" and "longitudinal" is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0033] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For ordinary skilled persons in the art, the specific meaning of these terms in the utility model can be understood according to the specific circumstances.

[0034] In addition, the terms "mount", "set", "provided with", "connected", "connected", "sleeved" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed, it can be mechanically connected or electrically connected, it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0035] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0036] A portal crane track anti-overturning device, comprising a bottom plate, a brake device, a brake drive return device, an anti-overturning device,

[0037] As Fig. 1-5As shown, the bottom plate 1 is provided with a roller mounting hole 16 and a driving plate mounting hole 17, and a track accommodating space 15 is provided on the back side and extends from left to right, and a telescopic plate mounting portion 18 and a wedge-shaped matching portion 19 are provided on both sides of the track accommodating space 15.

[0038] The telescopic plate mounting portion 18 comprises a telescopic plate sliding groove 22, a telescopic plate spring pressing plate 13 and a telescopic plate positioning plate 24.

[0039] As shown in Fig. 1 , 2 , the anti-overturning device comprises a telescopic plate 12, a telescopic plate sliding groove 22, a telescopic plate spring, and a telescopic plate spring pressing plate 13.

[0040] The telescopic plate 12 is provided with a telescopic plate spring hole 23, one end of the telescopic plate spring (not shown in the figure) extends into the telescopic plate spring hole 23, and the other end abuts against the telescopic plate spring pressing plate 13, and the telescopic plate spring (not shown in the figure) is in a compressed state.

[0041] The telescopic plate 12 is provided with a telescopic plate sliding rail 29, which can slide in the telescopic plate sliding groove 22.

[0042] The telescopic plate 12 is provided with a telescopic plate inclined surface 25, which is a straight chamfer or a circular chamfer, or a curved chamfer.

[0043] The telescopic plate 12 is provided with a telescopic plate roller groove 28 in the direction of the telescopic plate sliding groove 22, and the telescopic plate roller groove 28 is provided with a telescopic plate roller.

[0044] The telescopic plate roller groove 28 is provided with a roller pin hole 26 above it, and the telescopic plate roller is positioned in the roller pin hole 26 through a support.

[0045] The anti-overturning device further comprises a telescopic plate positioning plate 24, which limits the telescopic plate in the direction perpendicular to the track accommodating space 15.

[0046] The working principle of the present application is described below.

[0047] The present application is fixed to a crane and arranged on a steel rail, so that the track is in the track accommodating space 15.

[0048] The up and down position of the telescopic plate of the anti-overturning device is near the upper part of the rail waist below the rail head, and in the direction perpendicular to the rail, it is near the rail but not in contact with the rail, and the space distance between the two telescopic plates is less than the width of the rail head. Although the wedge-shaped pressing block 11 can effectively prevent the movement of the crane along the rail, it cannot well prevent the overturning of the crane. If the crane has a tendency to overturn under the action of wind, it will drive the telescopic plate to overturn together. Since the space between the telescopic plates is less than the width of the rail head, the rail head will prevent the telescopic plate from overturning, thereby avoiding the overturning of the whole crane.

[0049] Since the connecting device is connected between each section of the rail, when the telescopic plate moves to the position of the connecting device, the connecting device protruding from the rail waist is in contact with the inclined surface of the telescopic plate, and pushes the telescopic plate to move backward. When the telescopic plate approaches the connecting device, the telescopic plate is again close to the rail waist under the action of the telescopic plate spring (not shown in the figure), so that the present application can smoothly pass through the connecting device.

[0050] The present application adopts electromagnetic brake 5, adopts spring energy storage, and ensures that the crane is braked within 1S when power failure occurs, so as to achieve the effect of rapid braking.

[0051] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A portal crane track anti-overturning device, characterized in that: The bottom plate is provided with a roller mounting hole, a driving plate mounting hole, and a track accommodating space penetrating left and right on the back surface, and the track accommodating space is provided with an extension plate mounting portion on both sides; The extension plate mounting portion comprises an extension plate sliding groove, an extension plate spring pressing plate, and an extension plate positioning plate; The extension plate is provided with an extension plate spring hole, one end of the extension plate spring is inserted into the extension plate spring hole, the other end is abutted against the extension plate spring pressing plate, and the extension plate spring is in a compressed state; The extension plate is provided with an extension plate sliding rail, which can slide in the extension plate sliding groove.

2. A portal crane track anti-overturning device according to claim 1, characterized in that: The extension plate is provided with an extension plate bevel, which is a straight chamfer or a circular chamfer, or a curved chamfer.

3. A portal crane track anti-overturning device according to claim 1, characterized in that: The extension plate is provided with an extension plate roller groove in the direction of the extension plate sliding groove, and the extension plate roller groove is provided with an extension plate roller.

4. A portal crane track anti-overturning device according to claim 3, characterized in that: The extension plate roller groove is provided with a roller pin hole above, and the extension plate roller is positioned in the roller pin hole through a support.

5. A portal crane track anti-overturning device according to claim 1, characterized in that: The anti-overturning device further comprises an extension plate positioning plate, which limits the extension plate in the direction perpendicular to the track accommodating space.

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