Cantilever crane parking device

Abstract

The utility model discloses a cantilever crane parking device, and belongs to the field of cantilever crane design. Comprising a fixed pipe, a supporting pipe, a connecting wall, a fixed gear and a rotating mechanism, wherein the fixed pipe is fixed on an upright post of the cantilever crane; the supporting pipe is rotationally connected to a part, connected with a cantilever, at the upper end of the upright post; the connecting wall is fixedly connected to the fixed pipe and the supporting pipe; the rotating mechanism comprises fixing rods fixedly arranged on the fixing pipe and the supporting pipe respectively, a vertical rod with the two ends fixedly connected to the fixing rods and an accompanying gear rotationally arranged on the vertical rod in a sleeving mode, and the accompanying gear is meshed with the fixing gear. The cantilever crane parking device can quickly stop the fixed gear at any time by influencing the rotating mechanism so as to quickly stop the cantilever crane, so that a large error between a carried workpiece and a preset place can be avoided, the working safety is ensured, and some emergency situations can be dealt with.

Description

Technical Field

[0001] This utility model relates to the field of cantilever crane design technology, specifically a cantilever crane parking device. Background Technology

[0002] A jib crane is a common type of lifting equipment, belonging to industrial components. It is a light-duty crane, consisting of a column, a slewing boom, a slewing drive, and an electric hoist. Unlike other large lifting equipment such as tower cranes and gantry cranes, jib cranes are characterized by their light weight, large span, large lifting capacity, economy, and durability. They are suitable for a wider range of applications, including congested environments such as factory workshops, warehouses, ports, and construction sites. Parking devices refer to various equipment, systems, or facilities that can stop vehicles or machinery and keep them stationary.

[0003] The slewing limit switch in a cantilever crane is a stopping device for the direction of rotation of the cantilever. It is used to limit the slewing angle of the cantilever to prevent excessive rotation that could damage the equipment or cause a safety accident. However, the function of the slewing limit switch is only to cut off the power and stop the motor when the cantilever has rotated to a certain number of revolutions or a certain angle. Due to inertia, it is not possible to stop the cantilever immediately and accurately at any time to deal with some emergency situations. The inertia of the cantilever also affects the accuracy of the location of the goods being transported. The larger the weight of the goods being transported, the more difficult it is to stop. In some environments with relatively narrow operating spaces, it is difficult to handle the situation easily, accurately and safely.

[0004] Therefore, this utility model provides a cantilever crane parking device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides a cantilever crane parking device, which aims to solve the problems mentioned in the background art, such as the inability of existing parking devices to stop the cantilever immediately and accurately in order to deal with some emergency situations.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a cantilever crane stopping device, comprising a fixed pipe fixed to the cantilever crane column, a support pipe rotatably connected to a component connecting the upper end of the column to the cantilever, a connecting wall fixedly connected to the fixed pipe and the support pipe, a fixed gear fixedly connected to the cantilever crane component, and a rotating mechanism fixedly mounted on the fixed pipe and the support pipe. The rotating mechanism includes a fixed rod respectively fixedly mounted on the fixed pipe and the support pipe, a vertical rod fixedly connected to the fixed rod at both ends, and an accompanying gear rotatably mounted on the vertical rod. The accompanying gear meshes with the fixed gear. A stopping mechanism for stopping the accompanying gear is provided on the fixed pipe on one side of the rotating mechanism. By influencing the rotating mechanism, the fixed gear can be stopped quickly at any time, thereby stopping the cantilever crane quickly. Precisely stopping the cantilever ensures that the location of the workpiece being transported will not have large errors, ensuring work safety and responding to some emergency situations.

[0009] Preferably, the stopping mechanism includes a fixing member fixedly mounted on the fixing pipe and the supporting pipe respectively, a hydraulic cylinder fixedly mounted on the fixing member, a hydraulic rod fixedly mounted on the output end of the hydraulic cylinder, a fixing plate fixedly mounted on the outer wall of the hydraulic rod, and a clamping plate fixedly mounted between the fixing plates. The method of using the clamping plate and the accompanying gear to affect the fixing gear can prevent the clamping plate from directly colliding with the fixing gear and damaging the fixing gear.

[0010] Preferably, the fixed plates are arranged with an arc surface at one end corresponding to the card plate, which facilitates the sliding of the accompanying gear on the fixed plate and eventually extends into the card plate position to lock the card plate onto the accompanying gear.

[0011] Preferably, a friction plate is fixedly provided on the fixed plate at the arc surface position. The friction plate is used to contact and rub with the accompanying gear before the clamping plate and the accompanying gear are engaged, so that the accompanying gear can decelerate quickly and reduce the wear of the accompanying gear and the clamping plate.

[0012] Preferably, a limiting mechanism is provided on the side of the rotating mechanism away from the stopping mechanism. The limiting mechanism includes a limiter fixedly mounted on the fixed tube, a connecting rod bolted to the input end of the limiter, and a limiting gear fixedly mounted on the end of the connecting rod away from the limiter. The limiting gear meshes with the fixed gear. The cooperation between the limiting mechanism, the rotating mechanism, and the stopping mechanism can serve as a safeguard to prevent the cantilever from continuing to rotate a certain distance due to inertia after the power is cut off, thereby damaging the wiring or colliding with surrounding buildings or objects.

[0013] (III) Beneficial Effects

[0014] This utility model, by setting a stopping mechanism, stops the accompanying gear, causing the fixed gear to stop rotating. By influencing the rotating mechanism, the fixed gear can be stopped quickly at any time, thereby causing the cantilever crane to stop quickly. Precisely stopping the cantilever can ensure that there will be no large error between the transported workpiece and the preset location, ensuring work safety and dealing with some emergency situations.

[0015] This invention uses a hydraulic cylinder. When the hydraulic cylinder is activated, it pushes a hydraulic rod, which in turn pushes a fixed plate. The fixed plate then moves a clamping plate toward the accompanying gear, whereby the clamping plate locks onto the accompanying gear, causing the accompanying gear to stop rotating. This, in turn, stops the fixed gear and the cantilever from rotating. By using the clamping plate and the accompanying gear to influence the fixed gear, the invention prevents the clamping plate from directly colliding with the fixed gear and causing damage to it. Attached Figure Description

[0016] Figure 1 This is a front view of a cantilever crane parking device;

[0017] Figure 2 This is a side view of a cantilever crane parking device;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the limiting mechanism of a cantilever crane parking device.

[0020] In the diagram: 1. Fixed pipe; 2. Support pipe; 3. Connecting wall; 4. Fixed gear; 5. Rotating mechanism; 51. Fixed rod; 52. Vertical rod; 53. Accompanying gear; 6. Stopping mechanism; 61. Fixing component; 62. Hydraulic cylinder; 63. Hydraulic rod; 64. Fixed plate; 641. Friction plate; 65. Clamping plate; 7. Limiting mechanism; 71. Limiter; 72. Connecting rod; 73. Limiting gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a cantilever crane parking device, referring to... Figures 1 to 2The system includes a fixed pipe 1 fixed to the cantilever column, a support pipe 2 rotatably connected to the component connecting the upper end of the column to the cantilever, a connecting wall 3 fixedly connected to the fixed pipe 1 and the support pipe 2, a fixed gear 4 fixedly connected to the cantilever component, and a rotating mechanism 5 fixedly installed on the fixed pipe 1 and the support pipe 2. The rotating mechanism 5 includes a fixed rod 51 respectively fixedly installed on the fixed pipe 1 and the support pipe 2, a vertical rod 52 fixedly connected to the fixed rod 51 at both ends, an accompanying gear 53 rotatably sleeved on the vertical rod 52, the accompanying gear 53 meshing with the fixed gear 4, and a stopping mechanism 6 for stopping the accompanying gear 53 provided on one side of the rotating mechanism 5 on the fixed pipe 1.

[0023] Specifically, the column serves as the support structure for the cantilever crane. The upper part of the column is fixedly connected to the cantilever crane and rotatably connected to the column. During normal operation, the power system of the cantilever crane drives the fixed gear 4 to rotate, thereby driving the upper part of the column to rotate, and in turn, driving the cantilever to rotate. During this process, the fixed gear 4 simultaneously drives the accompanying gear 53, which meshes with it, to rotate. When the rotation reaches the appropriate position, the power supply is cut off. Due to inertia, the fixed gear 4 and the accompanying gear 53 still have a tendency to rotate. At this time, the accompanying gear 53 is stopped by the stopping mechanism 6, causing the fixed gear 4 to stop rotating. By influencing the rotation mechanism 5, the fixed gear 4 can be stopped quickly at any time, thereby causing the cantilever crane to stop rapidly. Precisely stopping the cantilever ensures that there will be no large error in transporting the workpiece to the preset location, ensuring work safety and responding to some emergency situations.

[0024] Furthermore, refer to Figures 1 to 3 The stopping mechanism 6 includes a fixing member 61 fixedly mounted on the fixing pipe 1 and the support pipe 2 respectively, a hydraulic cylinder 62 fixedly mounted on the fixing member 61, a hydraulic rod 63 fixedly mounted on the output end of the hydraulic cylinder 62, a fixing plate 64 fixedly mounted on the outer wall of the hydraulic rod 63, and a clamping plate 65 fixedly mounted between the fixing plates 64. Specifically, when the cantilever rotates to a preset position, or in case of an emergency, the power supply in the direction of rotation is cut off, the hydraulic cylinder 62 is activated, the hydraulic cylinder 62 pushes the hydraulic rod 63, the hydraulic rod 63 pushes the fixing plate 64, the fixing plate 64 drives the clamping plate 65 to move toward the accompanying gear 53, the clamping plate 65 is clamped on the accompanying gear 53, the accompanying gear 53 stops rotating, thereby stopping the rotation of the fixed gear 4 and the cantilever. The method of using the clamping plate 65 and the accompanying gear 53 to affect the fixed gear 4 can prevent the clamping plate 65 from directly colliding with the fixed gear 4 and damaging the fixed gear 4.

[0025] Furthermore, refer to Figures 1 to 3The fixed plates 64 are arranged with an arc surface at one end corresponding to the side of the clamping plate 65, which facilitates the sliding of the accompanying gear 53 on the fixed plate 64 and eventually extends into the position of the clamping plate 65, clamping the clamping plate 65 onto the accompanying gear 53.

[0026] It should be noted that, referring to Figures 1 to 3 A friction plate 641 is fixedly provided on the fixed plate 64 at the arc position. The friction plate 641 is used to contact and rub with the accompanying gear 53 before the clamping plate 65 and the accompanying gear 53 are engaged, so that the accompanying gear 53 can decelerate quickly and reduce the wear of the accompanying gear 53 and the clamping plate 65.

[0027] It is worth noting that, referring to Figure 2 , Figure 4 The rotating mechanism 5 is provided with a limiting mechanism 7 on the side away from the stopping mechanism 6. The limiting mechanism 7 includes a limiter 71 fixedly mounted on the fixed pipe 1, a connecting rod 72 bolted to the input end of the limiter 71, and a limiting gear 73 fixedly mounted on the end of the connecting rod 72 away from the limiter 71. The limiting gear 73 meshes with the fixed gear 4. Specifically, the limiting gear 73 rotates with the fixed gear 4, and the limiting gear 73 drives the connecting rod 72 to rotate. The connecting rod 72 is connected to the input end of the limiter 71 and feeds back the rotation data to the limiter 71. The limiter 71 analyzes the data and transmits the data to the power switch to control the power on and off. The limiting mechanism 7 can keep the cantilever rotating within a certain range. When the cantilever exceeds the limited range, it may break the circuit and cause danger. The cooperation between the limiting mechanism 7, the rotating mechanism 5, and the stopping mechanism 6 can serve as a guarantee to prevent the cantilever from continuing to rotate a certain distance due to inertia after the power is cut off, which could damage the circuit or collide with the surrounding environment, buildings, or objects.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cantilever crane parking device, characterized in that: The device includes a fixed pipe (1) fixed to the cantilever column, a support pipe (2) rotatably connected to the component connecting the upper end of the column to the cantilever, a connecting wall (3) fixedly connected to the fixed pipe (1) and the support pipe (2), a fixed gear (4) fixedly connected to the cantilever component, and a rotating mechanism (5) fixedly installed on the fixed pipe (1) and the support pipe (2). The rotating mechanism (5) includes a fixed rod (51) fixedly installed on the fixed pipe (1) and the support pipe (2), a vertical rod (52) fixedly connected to the fixed rod (51) at both ends, and an accompanying gear (53) rotatably sleeved on the vertical rod (52). The accompanying gear (53) meshes with the fixed gear (4). A stopping mechanism (6) for stopping the accompanying gear (53) is provided on the fixed pipe (1) on one side of the rotating mechanism (5).

2. The cantilever crane parking device according to claim 1, characterized in that: The stopping mechanism (6) includes a fixing member (61) fixedly mounted on the fixing pipe (1) and the supporting pipe (2), a hydraulic cylinder (62) fixedly mounted on the fixing member (61), a hydraulic rod (63) fixedly mounted on the output end of the hydraulic cylinder (62), a fixing plate (64) fixedly mounted on the outer wall of the hydraulic rod (63), and a clamping plate (65) fixedly mounted between the fixing plates (64).

3. The cantilever crane parking device according to claim 2, characterized in that: The fixing plates (64) are arranged with an arc surface at one end, corresponding to the side of the card plate (65).

4. A cantilever crane parking device according to claim 3, characterized in that: A friction plate (641) is fixedly installed on the fixed plate (64) at the arc surface position.

5. A cantilever crane parking device according to claim 4, characterized in that: The rotating mechanism (5) is provided with a limiting mechanism (7) on the side away from the stopping mechanism (6). The limiting mechanism (7) includes a limiter (71) fixedly mounted on the fixed tube (1), a connecting rod (72) bolted to the input end of the limiter (71), and a limiting gear (73) fixedly mounted on the end of the connecting rod (72) away from the limiter (71). The limiting gear (73) meshes with the fixed gear (4).

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