Rail braking device of portal crane

Abstract

A rail braking device of a portal crane comprises a bottom plate, a braking device and a braking drive return device, the bottom plate is provided with a roller mounting hole and a drive plate mounting hole, the back face of the bottom plate is provided with a rail containing space penetrating through the left side and the right side, and wedge-shaped matching parts are arranged on the two sides of the rail containing space; the braking device comprises a wedge-shaped pressing block, and one face of the wedge-shaped pressing block is matched with the wedge-shaped matching part and can slide along the wedge-shaped matching part. The other face of the wedge-shaped pressing block is parallel to the center line of the track containing space. The brake driving and returning device comprises a brake driving device and a brake returning device; the brake driving device comprises a wedge block guide column, a connecting plate, a driving plate, a driving plate guide column, a driving plate guide column mounting plate and a driving plate spring; the drive plate spring is in a compressed state.

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 generally runs on fixed track, relies on the movement of crane on track to move heavy objects to the car or ship. The brake device of existing crane is all to brake wheel itself, so that wheel cannot rotate to stop. But when there is strong wind, especially when wind reaches 8 levels above, wind will blow crane, at this time, even if the wheel of crane does not roll, but due to the contact area between wheel and track is very small, under the action of wind force, wheel will slide on track, so as to move crane. In addition, other brake devices at present are almost electrically driven, when brake device is powered, start brake device driving system, driving system drives brake device through a series of mechanisms, which also produces two problems, one is that if power fails, brake device cannot be started, even after starting, brake device will also fail, on the other hand, starting speed is slow, which may need 5-10S. Therefore, a kind of device for stably braking crane is needed. SUMMARY

[0003] A kind of portal crane rail brake 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, the back is provided with the track containing space that penetrates left and right, the track containing space both sides are provided with wedge-shaped cooperation part;

[0005] There is an included angle between the wedge-shaped cooperation part and the center line of the track containing space, the tangent value of the included angle is less than the friction coefficient between the wedge-shaped pressure block and the track, to form mechanical self-locking, the included angle is 3-10 degrees.

[0006] Wedge-shaped block guide rail is further provided on the bottom plate, the wedge-shaped block guide rail is parallelly arranged with the wedge-shaped cooperation part.

[0007] The brake device includes wedge-shaped pressure block, the wedge-shaped pressure block is wedge-shaped structure;

[0008] One side of the wedge-shaped pressure block cooperates with the wedge-shaped cooperation part, and can slide along the wedge-shaped cooperation part;The other side of the wedge-shaped pressure block is parallel to the center line of the track containing space.

[0009] Wedge-shaped block guide groove is provided on the wedge-shaped pressure block, the wedge-shaped block guide groove cooperates with the wedge-shaped block guide rail, so that the wedge-shaped pressure block slides along the wedge-shaped block guide rail.

[0010] 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-shaped block guide rail. The wedge-shaped block guide groove on the wedge-shaped block is matched with the supporting plate guide rail, so that the wedge-shaped block slides along the supporting plate guide rail.

[0011] 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.

[0012] The bottom plate is provided with a wedge-shaped block guide column guide sleeve, which positions the wedge-shaped block guide column and makes the wedge-shaped block guide column slide along a predetermined route.

[0013] The connecting plate is provided with pin holes at both ends for connecting with the wedge-shaped block guide column and the driving plate, respectively.

[0014] 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.

[0015] The electromagnet has magnetism when powered on to attract the driving plate, and has no magnetism when powered off. The driving plate moves under the action of the driving plate spring.

[0016] The driving plate is provided with a magnetic material, and a buffer component such as a spring or rubber is arranged between the magnetic material and the driving plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figures 1-3 It is a schematic diagram of the overall structure of the present application.

[0018] Figures 4-5 It is a schematic diagram of the bottom plate structure of the present application.

[0019] Figure 6 It is a schematic diagram of the connecting plate structure of the present application.

[0020] Figure 7 It is a schematic diagram of the motor and screw device of the present application.

[0021] Figure 8 It is a schematic diagram of the supporting plate structure of the present application.

[0022] Figure 9 A schematic view of a wedge-shaped briquette of the present application.

[0023] In the figure: 1 - base plate, 2 - return motor, 3 - return screw, 4 - driving plate, 41 - driving plate suction plate, 5 - electromagnet, 6 - driving plate guide post mounting plate, 7 - driving plate guide post, 8 - roller, 9 - connecting plate, 10 - wedge block guide post, 101 - wedge block guide post guide sleeve, 11 - wedge-shaped briquette, 111 - wedge block guide groove, 14 - supporting plate, 15 - track accommodating space, 16 - roller mounting hole, 17 - driving plate mounting hole, 19 - wedge-shaped matching part, 20 - wedge block guide rail, 21 - screw sleeve, 26 - pin hole, 27 - supporting plate guide rail. DETAILED DESCRIPTION

[0024] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination 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 other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0025] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily 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.

[0026] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "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.

[0027] 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.

[0028] In addition, the terms "mounting", "setting", "provided with", "connection", "connected", "sleeved" 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.

[0029] 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.

[0030] A portal crane rail brake device, comprising a bottom plate, a brake device, a brake drive return device, an anti-overturning device,

[0031] As shown in Figures 1-5 The bottom plate 1 is provided with a roller mounting hole 16 and a drive plate mounting hole 17, and a back surface is provided with a rail accommodating space 15 penetrating left and right, 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.

[0032] 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.

[0033] The wedge-shaped matching portion 19 has an included angle with the center line of the rail accommodating space 15, the included angle is 3-10 degrees, and the tangent value of the included angle is less than the friction coefficient between the wedge-shaped pressing block and the rail, so as to form mechanical self-locking.

[0034] The bottom plate 1 is further 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.

[0035] As shown in Figures 1-2 The brake device comprises a wedge-shaped pressing block 11, and the wedge-shaped pressing block 11 is in a wedge-shaped structure.

[0036] 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.

[0037] As Figure 9 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.

[0038] As Figure 8 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, and 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.

[0039] As Figures 1-2 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 driving plate 4 to slide, a driving plate guide column mounting plate 6 installed in parallel with the driving plate 4, and a driving plate spring (not shown in the figure) arranged 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 figure) is in a compressed state.

[0040] As Figures 1-3 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.

[0041] As Figure 6 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, respectively.

[0042] As Figure 7 shown, the brake returning device comprises a returning motor 2, a returning lead screw 3, and an electromagnet 5; the returning lead 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 figure).

[0043] The electromagnet 5 has magnetism when powered to attract the driving plate 4, and has no magnetism when power is lost, and the driving plate 4 moves under the action of the driving plate spring (not shown in the figure).

[0044] The driving plate 4 is provided with a magnetic material, and a buffer component is arranged between the magnetic material and the driving plate 4, the magnetic material can be selected from steel plate, iron plate and the like, and the buffer component is spring, rubber or the like.

[0045] The working principle of the application will be described below.

[0046] The application is fixed to the crane and arranged on the steel rail, so that the rail is in the rail accommodating space 15. When not braking, the driving plate 4 is initially driven by the return motor 2 to push the return lead screw 3 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 figure), 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 lead screw 3 is retreated 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 is quickly driven to move under the elastic force of the driving plate spring (not shown in the figure), 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 presses the steel rail.

[0047] It should be noted that the force of the wedge-shaped pressing block 11 pressing the steel rail is very small at this time, which cannot meet the braking force requirement in windy weather. When the wind has a tendency to move the crane, the wheels of the crane also have a tendency to roll, which drives the application to have a tendency to move relative to the steel rail. The movement tendency drives the wedge-shaped pressing block 11 to have a tendency to move along the steel rail. Due to the wedge-shaped shape of the wedge-shaped pressing block 11, the force between the wedge-shaped pressing block 11 and the steel rail increases exponentially. Therefore, the wedge-shaped pressing block 11 cannot move, so that the crane cannot move, and the braking effect of the crane is ensured.

[0048] In addition, since the wedge-shaped pressing block 11 can only work in one direction, at least two sets of the application are required to be used in cooperation, and are arranged oppositely, so that good braking effects can be obtained in two directions. In actual use, four sets are generally used, and two sets are arranged oppositely.

[0049] The application adopts electromagnet 5 power-off braking and spring energy storage, so that the crane can be braked within 1S when power failure occurs, and the effect of rapid braking is achieved.

[0050] Although the embodiments of the application have been shown and described above, it should be understood that the above embodiments are exemplary, and should not be understood as limiting the application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the application.

Claims

1. A portal crane rail brake arrangement, characterized by: The bottom plate, the braking device, the braking drive return device, The bottom plate is provided with a roller mounting hole, a drive plate mounting hole, and a back surface provided with a track accommodating space penetrating left and right, and the track accommodating space is provided with a wedge-shaped matching part on both sides; The wedge-shaped matching part and the center line of the track accommodating space form an included angle; The braking device includes a wedge-shaped pressing block, which is in a wedge-shaped structure; 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; The braking drive return device includes a braking drive device and a braking return device, the braking drive 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 drive plate hingedly connected with the connecting plate, a drive plate guide column guiding the sliding of the drive plate, a drive plate guide column mounting plate installed in parallel with the drive plate, and a drive plate spring arranged on the drive plate guide column and located between the drive plate and the drive plate guide column mounting plate; the drive plate spring is in a compressed state.

2. A portal crane rail brake 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.

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

4. A portal crane rail brake device according to claim 1, characterized in that: The braking 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 drive plate to move; the electromagnet can attract the drive plate so that the drive plate cannot be pushed by the drive plate spring.

5. A portal crane rail brake device according to claim 4, characterized in that: The electromagnet has magnetism when powered and attracts the drive plate, and has no magnetism when power is lost, and the drive plate moves under the action of the drive plate spring.

6. A portal crane rail brake device according to claim 1, characterized in that: The drive plate is provided with a magnetic material, and a buffer component is arranged between the magnetic material and the drive plate; the buffer component is a spring or rubber.

7. A portal crane rail brake device according to claim 1, characterized in that: The included angle between the wedge-shaped matching part and the center line of the track accommodating space is 3-10 degrees; the tangent value of the included angle is less than the friction coefficient between the wedge-shaped pressing block and the track, so as to form mechanical self-locking.

8. A portal crane rail brake arrangement according to claim 7, characterized in that: The bottom plate is further provided with a wedge-shaped block guide rail, which is arranged in parallel with the wedge-shaped matching part.

9. A portal crane rail brake arrangement according to claim 8, characterized in that: The bottom plate is further fixedly connected with a supporting plate, the supporting plate is provided with a supporting plate guide rail at a position opposite to the wedge-shaped block guide rail, a wedge-shaped block guide groove on the wedge-shaped pressing block matches the supporting plate guide rail, and the wedge-shaped pressing block slides along the supporting plate guide rail.

10. A portal crane rail brake device according to claim 8, 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 and makes the wedge-shaped pressing block slide along the wedge-shaped block guide rail.

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