Rail braking and overturn-preventing device of portal crane

Abstract

A rail braking and overturn-preventing device of a portal crane comprises a bottom plate, a braking device, a braking driving device and a braking return device, the brake driving device comprises a wedge-shaped block guide column fixedly connected with the wedge-shaped pressing block, a connecting plate hinged to the wedge-shaped block guide column, a driving plate hinged to the connecting plate, a driving plate guide column for guiding the driving plate to slide, a driving plate guide column mounting plate parallel to the driving plate, and a driving plate guide column mounting plate arranged on the driving plate guide column and connected with the driving plate guide column mounting plate. The driving plate spring is positioned between the driving plate and the driving plate guide column mounting plate; the driving plate spring is in a compressed state; the brake return device comprises a return motor, a return lead screw and an electromagnet; the return lead screw is driven by the return motor to axially move and can push the driving plate to move; the electromagnet can attract the driving plate, so that the driving plate cannot be pushed by the driving plate spring; and the electromagnet has magnetism when being electrified to attract the driving plate, and has no magnetism when being de-electrified, and the driving plate moves under the action of the driving plate spring.

Description

TECHNICAL FIELD

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

[0002] Portal crane is widely used in each freight yard, warehouse, port, wharf, for lifting heavy objects. Portal crane is generally operated on fixed track, and heavy objects are moved to vehicle or ship by the movement of crane on track. The brake device of existing crane is all to brake wheel itself, so that wheel cannot rotate to stop. However, when there is strong wind, especially when wind reaches more than 8 levels, wind will blow crane, at this time, even if the wheels of crane do not roll, but due to the small contact area between wheel and track, wheel will slide on track under the action of wind, so as to move crane. When crane moves to the end of track limiting device, lower wheel stops moving under the action of limiting device, but upper part of crane continues to move under the action of inertia, so as to cause rollover accident. In recent years, there have been more than one such accident. In addition, other brake devices at present are almost electrically driven, when brake device is powered, brake device driving system is started, and driving system drives brake device through a series of mechanisms, which also produces two problems, one is that brake device cannot be started if power is off, and even started brake device will fail, on the other hand, starting speed is slow, which may need 5-10S. Therefore, a brake device is needed, which can stably brake and prevent overturning of crane, and can be quickly started in non-electric state. SUMMARY

[0003] A kind of portal crane rail brake and anti-overturning device, including bottom plate, brake device, brake driving return device, anti-overturning device,

[0004] Roller mounting hole, drive plate mounting hole are provided on the bottom plate, back surface is provided with track containing space penetrating left and right, the both sides of track containing space are provided with expansion plate mounting part, wedge-shaped cooperation part;

[0005] The expansion plate mounting part includes expansion plate sliding slot, expansion plate spring pressure plate, expansion plate positioning plate.

[0006] The wedge-shaped cooperation part and the center line of the track containing space have an included angle, and the included angle is 3-10 degrees.

[0007] Wedge-shaped block guide rail is further provided on the bottom plate, and the wedge-shaped block guide rail is arranged in parallel with the wedge-shaped cooperation part.

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

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

[0010] A wedge-shaped block guide groove is arranged on the wedge-shaped block, which matches the wedge-shaped block guide rail to make the wedge-shaped block slide along the wedge-shaped block guide rail.

[0011] A wedge-shaped block guide groove is arranged on the wedge-shaped block, which matches the wedge-shaped block guide rail to make the wedge-shaped block slide along the wedge-shaped block 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-shaped block guide column fixedly connected with the wedge-shaped block, a connecting plate hingedly connected with the wedge-shaped 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] A wedge-shaped block guide column guide sleeve is arranged on the bottom plate to position the wedge-shaped block guide column and make the wedge-shaped block guide column slide along a predetermined route.

[0014] Pin holes are arranged at both ends of the connecting plate to connect the wedge-shaped block guide column and the driving plate.

[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 cannot be pushed by the driving plate spring.

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

[0017] A magnetic material is arranged on the driving plate, and a buffer component such as a spring or rubber is arranged between the magnetic material and the driving plate.

[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, and the other end is abutted 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 slide rail which can slide in the telescopic plate slide 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 direction of the telescopic plate slide groove, and the telescopic plate roller groove is provided with a telescopic plate roller.

[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 containing space. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figures 1-3 It is a schematic diagram of the overall structure of the present application.

[0026] Figures 4-5 It is a schematic diagram of the bottom plate structure of the present application.

[0027] Figures 6-7 It is a schematic diagram of the anti-overturning device structure of the present application.

[0028] Figure 8 It is a schematic diagram of the connecting plate structure of the present application.

[0029] Figure 9 It is a schematic diagram of the motor and lead screw device of the present application.

[0030] Figure 10 It is a schematic diagram of the supporting plate structure of the present application.

[0031] Figure 11 It is a schematic diagram of the wedge-shaped pressing block of the present application.

[0032] Figure 12 It is a schematic diagram of the braking device of the present application.

[0033] In the figure: 1 - bottom plate, 2 - return motor, 3 - return screw, 4 - drive plate, 41 - drive plate suction plate, 5 - electromagnet, 6 - drive plate guide post mounting plate, 7 - drive plate guide post, 8 - roller, 9 - connecting plate, 10 - wedge block guide post, 101 - wedge block guide post guide sleeve, 11 - wedge-shaped pressing block, 111 - wedge block guide groove, 12 - expansion plate, 13 - expansion plate spring pressing plate, 14 - supporting plate, 15 - track accommodating space, 16 - roller mounting hole, 17 - drive plate mounting hole, 18 - expansion plate mounting portion, 19 - wedge-shaped matching portion, 20 - wedge block guide rail, 21 - screw sleeve, 22 - expansion plate sliding groove, 23 - expansion plate spring hole, 24 - expansion plate positioning plate, 25 - expansion plate inclined surface, 26 - pin hole, 27 - supporting plate guide rail, 28 - expansion plate roller groove, 29 - expansion plate sliding rail. DETAILED DESCRIPTION

[0034] In order to enable the personnel in the technical field to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described 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, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the personnel in the art without making creative efforts should belong to the scope of protection of the present application.

[0035] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application 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 thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. 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 device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0036] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application 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.

[0037] And, the above-mentioned partial terms can be used to represent other meanings in addition to the orientation or positional relationship, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0038] In addition, the terms "mounting", "setting", "provided with", "connecting", "connecting", "sleeving" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally configured; 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 those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] 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. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0040] A portal crane rail brake and anti-overturning device, comprising a bottom plate, a brake device, a brake drive return device, an anti-overturning device,

[0041] As shown in Figures 1-5 The bottom plate 1 is provided with a roller mounting hole 16 and a driving plate mounting hole 17, and a back surface is provided with a through left and right rail accommodating space 15, and the rail accommodating space 15 is provided with a telescopic plate mounting portion 18 and a wedge-shaped matching portion 19 on both sides.

[0042] The telescopic plate mounting portion 18 includes a telescopic plate sliding groove 22, a telescopic plate spring pressing plate 13 and a telescopic plate positioning plate 24.

[0043] The wedge-shaped matching portion 19 and the center line of the rail accommodating space 15 have an included angle, and the included angle is 3-10 degrees.

[0044] The bottom plate 1 is also provided with a wedge-shaped block guide rail 20, and the wedge-shaped block guide rail 20 is arranged in parallel with the wedge-shaped matching portion 19.

[0045] As shown in Figures 1-2 The brake device includes a wedge-shaped pressing block 11, and the wedge-shaped pressing block 11 is in a wedge-shaped structure.

[0046] One side of the wedge-shaped pressing block 11 matches the wedge-shaped matching portion 19 and can slide along the wedge-shaped matching portion 19; the other side of the wedge-shaped pressing block 11 is parallel to the center line of the rail accommodating space 15.

[0047] As shown in Figure 11As shown, the wedge-shaped block 11 is provided with a wedge-shaped block guide groove 111, which cooperates with the wedge-shaped block guide rail 20 to make the wedge-shaped block 11 slide along the wedge-shaped block guide rail 20.

[0048] As shown in the drawings, Figure 10 As shown, the bottom plate 1 is further fixedly connected with a supporting plate 14, which is provided with a supporting plate guide rail 27 at a position opposite to the wedge-shaped block guide rail 20. The wedge-shaped block guide groove 111 on the wedge-shaped block 11 cooperates with the supporting plate guide rail 27 to make the wedge-shaped block 11 slide along the supporting plate guide rail 27.

[0049] As shown in the drawings, Figures 1-2 As shown, the brake driving and returning device comprises a brake driving device and a brake returning device. The brake driving device comprises a wedge-shaped block guide column 10 fixedly connected with the wedge-shaped block 11, a connecting plate 9 hingedly connected with the wedge-shaped block guide column 10, a driving plate 4 hingedly connected with the connecting plate 9, a driving plate guide column 7 guiding the sliding of the driving plate 4, a driving plate guide column mounting plate 6 mounted in parallel with the driving plate 4, and a driving plate spring (not shown in the drawings) provided on the driving plate guide column 7 and located between the driving plate 4 and the driving plate guide column mounting plate 6. The driving plate spring (not shown in the drawings) is in a compressed state.

[0050] As shown in the drawings, Figure 12 As shown, the bottom plate 1 is provided with a wedge-shaped block guide column guide sleeve 101, which positions the wedge-shaped block guide column 10 to make it slide along a predetermined route.

[0051] As shown in the drawings, Figure 8 As shown, the connecting plate 9 is provided with a pin hole 26 at each end to connect with the wedge-shaped block guide column 10 and the driving plate 4.

[0052] As shown in the drawings, Figure 9 As shown, the brake returning device comprises a returning motor 2, a returning screw 3, and an electromagnet 5. The returning screw 3 moves axially under the driving of the returning motor 2 and can push the driving plate 4 to move. The electromagnet 5 can attract the driving plate 4 so that the driving plate 4 can not be pushed by the driving plate spring (not shown in the drawings).

[0053] The electromagnet 5 has magnetism when powered and attracts the driving plate 4, and has no magnetism when power is lost. The driving plate 4 moves under the action of the driving plate spring (not shown in the drawings).

[0054] The driving plate 4 is provided with a magnetic material, and a buffer component is provided between the magnetic material and the driving plate 4. The magnetic material can be selected from steel plate, iron plate, etc., and the buffer component can be spring, rubber, etc.

[0055] As Figures 6-7 shown in the drawings, the anti-overturning device comprises a telescopic plate 12, a telescopic plate sliding groove 22, a telescopic plate spring, a telescopic plate spring pressing plate 13.

[0056] The telescopic plate 12 is provided with a telescopic plate spring hole 23, one end of the telescopic plate spring (not shown in the drawings) extends into the telescopic plate spring hole 23, and the other end abuts against the telescopic plate spring pressing plate 13. The telescopic plate spring (not shown in the drawings) is in a compressed state.

[0057] The telescopic plate 12 is provided with a telescopic plate sliding rail 29, which can slide in the telescopic plate sliding groove 22.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] The anti-overturning device further comprises a telescopic plate positioning plate 24, which limits the telescopic plate in the direction perpendicular to the track containing space 15.

[0062] The working principle of the present application is described below.

[0063] The present application is fixed to the crane and arranged on the steel rail, so that the track is in the track containing space 15. When not braking, the driving plate 4 is initially driven by the return motor 2 to the position close to the electromagnet 5, the electromagnet 5 is powered on, the attractive force of the electromagnet 5 is greater than the elastic force of the driving plate spring (not shown in the drawings), the driving plate 4 is attracted by the electromagnet 5, the wedge-shaped pressing block 11 connected with the driving plate 4 is kept away from the steel rail, and the return screw 3 retreats away from the driving plate 4. When braking is needed, the electromagnet 5 is powered off, the driving plate 4 loses the attractive force of the electromagnet 5, and under the action of the elastic force of the driving plate spring (not shown in the drawings), the driving plate 4 is quickly moved, the driving plate 4 drives the connecting plate 9, the wedge-shaped block guide column 10 and the wedge-shaped pressing block 11 in turn, and the wedge-shaped pressing block 11 is pressed tightly against the steel rail.

[0064] Need to explain, at this time the wedge-shaped pressure block 11 press the force of the rail is small, meet the braking force requirement in windy weather. When the wind has the tendency to move the crane, the wheels of the crane also have the tendency to roll, drive the present invention relative to the rail also have the tendency to move, the movement tendency drive the wedge-shaped pressure block 11 have the tendency to move along the rail. Because the wedge-shaped pressure block 11 wedge shape, will make the force between the wedge-shaped pressure block 11 and the rail exponential growth. Therefore, the wedge-shaped pressure block 11 can not move, so that the crane also can not move, ensure the braking effect of the crane.

[0065] In addition, because the wedge-shaped pressure block 11 can only work in a single direction, therefore, at least 2 set of the present invention is used in conjunction with, relative installation, so as to ensure that in both directions can be good braking effect. In actual use, generally use 4 sets, two by two relative installation.

[0066] Although the current train, high-speed rail track all adopt seamless track, but in the factory area, generally used is still jointed track, each section of track is connected by connecting device, the connecting device is installed at the rail waist of the track, the braking position of the present invention is at the rail head, although there is a gap at the rail head, but the length of the gap is much smaller than the working surface length of the wedge-shaped pressure block 11, therefore, the connecting device does not affect the braking effect of the present invention.

[0067] The up and down position of the telescopic plate of the anti-overturning device is below the rail head and close to the upper part of the rail waist, in the direction perpendicular to the track, close to the track, but not in contact with the track, ensure the space distance between the two telescopic plates is less than the width of the rail head. Although the wedge-shaped pressure block 11 can effectively prevent the movement of the crane along the track, but can not be a good anti-overturning of the crane. If the crane has the tendency to overturn under the action of wind, it will drive the telescopic plate to overturn together, because the space between the telescopic plates is less than the width of the rail head, therefore, the rail head will prevent the telescopic plate from overturning, thereby avoiding the overturning of the whole crane.

[0068] Because each section of track is connected by connecting device, when the telescopic plate moves to the position of the connecting device, the connecting device protruding from the rail waist contacts the inclined surface of the telescopic plate, pushes the telescopic plate to move backward, when the telescopic plate approaches the connecting device, the telescopic plate approaches the rail waist again under the action of the telescopic spring (not shown in the figure), so as to ensure that the present invention can smoothly pass through the connecting device.

[0069] The present invention adopts electromagnetic brake, adopts spring energy storage, ensures that the crane is braked within 1S when power failure, achieves the effect of rapid braking.

[0070] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A portal crane rail brake and anti-overturning device, characterized in that: The brake device, the brake driving return device, 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 a wedge-shaped matching part on both sides. The bottom plate is also provided with a wedge-shaped block guide rail, which is arranged in parallel with the wedge-shaped matching part. The brake device includes a wedge-shaped pressing block in a wedge-shaped structure. The brake driving return device includes a brake driving device and a brake return device, the brake driving device includes a wedge-shaped block guide column fixedly connected with the wedge-shaped pressing block, a connecting plate hingedly connected with the wedge-shaped 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. The brake return device includes a return motor, a return lead screw, and an electromagnet; the return lead screw moves axially under the drive 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. The electromagnet has magnetism when powered and no magnetism when power is lost, and the driving plate moves under the action of the driving plate spring.

2. A portal crane rail brake and anti-overturning device according to claim 1, characterized in that: The driving plate is provided with a magnetic material, and a buffer component is arranged between the magnetic material and the driving plate, which is a spring or rubber.

3. The portal crane rail brake and overturning prevention device according to claim 1, characterized in that: The bottom plate is provided with a wedge-shaped block guide column guide sleeve, which positions the wedge-shaped block guide column to make it slide along a predetermined route.

4. The portal crane rail brake and overturning prevention device according to claim 1, characterized in that: The connecting plate is provided with a pin hole at each end for connecting with the wedge-shaped block guide column and the driving plate.

5. A portal crane rail brake and anti-overturning device according to claim 1, characterized in that: One side of the wedge-shaped pressing block matches the wedge-shaped matching part and can slide along the wedge-shaped matching part; the other side of the wedge-shaped pressing block is parallel to the center line of the track accommodating space.

6. A portal crane rail brake and anti-overturning device according to claim 5, characterized in that: The wedge-shaped pressing block is provided with a wedge-shaped block guide groove, which matches the wedge-shaped block guide rail to make the wedge-shaped pressing block slide along the wedge-shaped block guide rail.

7. A portal crane rail brake and anti-overturning device according to claim 3, characterized in that: The bottom plate is also fixedly connected with a supporting plate, which is provided with a supporting plate guide rail opposite to the wedge-shaped block guide rail, and the wedge-shaped block guide groove on the wedge-shaped pressing block matches the supporting plate guide rail to make the wedge-shaped pressing block slide along the supporting plate guide rail.

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