Outdoor crown block automatic closing device

Abstract

The utility model discloses an outdoor headgear automatic closing device belongs to headgear technical field, the device includes the clamping part of setting on the side rail, the clamping part sets along the side rail, and the device still includes the vertical column of setting below headgear, the vertical column is fixed with the hydraulic telescopic pole, the hydraulic telescopic pole extension end is fixed with the abutting and pressing disc, the abutting and pressing disc is mutually adapted with the clamping part, the hydraulic telescopic pole can drive the abutting and pressing disc and the clamping part mutually cooperate after extension, thereby generates the lateral resistance to headgear. The utility model discloses outdoor headgear automatic closing device through the free clamping of hydraulic telescopic pole and abutting and pressing disc, has greatly promoted the stability when the goods are transported. The hydraulic telescopic pole can accurate control extension length, drive the abutting and pressing disc and lock tooth close cooperation of adaptation, produce stable lateral resistance. Effectively reduce the outside factor interference, make headgear can always keep stable state when static hoisting goods.

Description

Technical Field

[0001] This utility model relates to the field of overhead crane technology, and in particular to an automatic sealing device for outdoor overhead cranes. Background Technology

[0002] Overhead cranes, also known as bridge cranes, are widely used lifting equipment in the industrial field. They span over workshops, warehouses, or freight yards, with both ends fixed to tall metal supports or building structures via rails, resembling an "aerial bridge." Overhead cranes can flexibly move heavy objects in three-dimensional space, achieving precise lifting and unloading of materials, greatly improving production efficiency and reducing the intensity of manual labor.

[0003] In operation, the main trolley motor drives the wheels, causing the entire overhead crane to move longitudinally along the factory's tracks; the auxiliary trolley motor on the crane drives the auxiliary trolley to move laterally on the main beam of the bridge; the hoisting mechanism motor drives the drum to wind and unwind the wire rope, which, through a pulley block, drives the hook to vertically lift and lower goods. All parts work together to complete material handling. Overhead cranes mostly use mechanical friction braking: the brake shoes, under the action of springs, hydraulic pressure, or electromagnetic force, are tightly fitted with the brake wheel, utilizing the frictional force between them to generate a frictional torque. When the frictional torque is greater than the crane's rotational torque, the crane's movement can be stopped.

[0004] The shortcomings of the existing technical solutions are as follows: After prolonged use, the brake shoes and brake wheel experience severe surface wear due to frequent friction, resulting in a reduced contact area and a lower coefficient of friction. Furthermore, if the wear-generated powder is not cleaned promptly, it will form an oil-stain mixture, further weakening the friction. Consequently, when the overhead crane is stationary on the track while lifting goods, external vibrations, impacts, or foreign objects may cause relative displacement between the brake shoes and brake wheel, leading to slippage and severely affecting the stability of the overhead crane's braking system. Utility Model Content

[0005] This invention provides an automatic sealing device for outdoor overhead cranes, which can solve the problem of poor stability of overhead cranes when hoisting goods while stationary after long-term use without maintenance.

[0006] An automatic sealing device for an outdoor overhead crane includes a locking component mounted on a side rail, the locking component being arranged along the side rail; the device also includes a vertical column mounted below the overhead crane, a hydraulic telescopic rod fixedly mounted on the vertical column, a pressure plate fixedly mounted on the extended end of the hydraulic telescopic rod, the pressure plate being adapted to the locking component, and the extension of the hydraulic telescopic rod driving the pressure plate to cooperate with the locking component, thereby generating lateral resistance to the overhead crane.

[0007] As a further embodiment of this utility model: the locking component includes multiple sets of locking teeth arranged at the bottom of the side rail, and each set of locking teeth has symmetrical slopes on both sides of its bottom. The hydraulic telescopic rod and the pressure plate are each provided in two sets, and the two sets of hydraulic telescopic rods and the two sets of pressure plates are symmetrically inclined on the vertical column.

[0008] As a further embodiment of this utility model: a sliding assembly is slidably sleeved on the vertical column, both sets of hydraulic telescopic rods are fixedly mounted on the sliding assembly, a pushing device is fixedly mounted on the vertical column, and the telescopic end of the pushing device is fixedly connected to the sliding assembly.

[0009] As a further embodiment of this utility model: each of the pressure plates is fixedly equipped with a laser ranging device for detecting the distance between the side slope of the locking teeth and the pressure plate.

[0010] As a further embodiment of this utility model, the pressure plate and the hydraulic telescopic rod are detachably connected.

[0011] As a further embodiment of this utility model: the included angle between the two sets of hydraulic telescopic rods is the same as the included angle between the slopes on both sides of the locking teeth.

[0012] As a further embodiment of this utility model: each group of laser ranging devices is located in the middle position on one side of the pressure plate.

[0013] As a further embodiment of this utility model: the included angle between the two sets of hydraulic telescopic rods and the included angle between the slopes on both sides of the locking teeth are both right angles.

[0014] As a further embodiment of this utility model: the contact surface between the pressure plate and the locking teeth is rectangular.

[0015] As a further embodiment of this utility model, a cushioning pad made of plastic is provided on the surface of the pressure plate.

[0016] The beneficial effects of this utility model are: 1. In this utility model, compared to the traditional method of using only mechanical friction braking, the automatic sealing device for outdoor overhead cranes significantly improves stability during cargo transport through the free engagement of a hydraulic telescopic rod and a pressure plate. Traditional mechanical friction braking, under prolonged use and without maintenance, is prone to wear on the friction components, leading to unstable braking performance and causing the overhead crane to sway when hoisting goods while stationary. In this device, the hydraulic telescopic rod can precisely control its extension length, driving the matching pressure plate to tightly engage with the locking teeth, generating stable lateral resistance. The rectangular slope and contact surface design, combined with a plastic buffer pad, ensures sufficient and uniform contact force, effectively reducing interference from external factors and ensuring the overhead crane remains stable when hoisting goods while stationary.

[0017] 2. In actual operation, the pushing device drives the sliding assembly to move up and down. This action allows the hydraulic telescopic rod and the pressure plate to flexibly adjust their positions and precisely align with the most suitable locking teeth. Based on data from the laser rangefinder, the controller analyzes the locking teeth with the largest contact area and then directs the pushing device to rise and fall, thereby adjusting the extension angle of the hydraulic telescopic rod to achieve maximum contact area between the pressure plate and the locking teeth. This effectively avoids the problem of uneven force caused by incomplete contact between the pressure plate and the locking teeth, greatly improving the stability of the vehicle sealing process. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of an outdoor overhead crane automatic sealing device provided by this utility model; Figure 2 A front view structural diagram of an automatic sealing device for outdoor overhead cranes provided by this utility model; Figure 3 A schematic diagram of the hydraulic telescopic rod structure of an outdoor crane automatic sealing device during movement, provided by this utility model; Figure 4 A schematic diagram of the hydraulic telescopic rod structure of the automatic sealing device for outdoor cranes when locked, provided by this utility model; Figure 5 A schematic diagram of the pressure plate structure of an automatic sealing device for outdoor overhead cranes provided by this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Overhead crane; 2. Side rail; 201. Locking tooth; 3. Vertical column; 4. Pushing device; 5. Sliding kit; 6. Hydraulic telescopic rod; 601. Pressure plate; 602. Laser rangefinder. Detailed Implementation

[0020] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0021] like Figures 1 to 5As shown in the figure, this utility model provides an automatic sealing device for an outdoor overhead crane, including locking teeth 201 mounted on a side rail 2. The locking teeth 201 are arranged along the length of the side rail 2, and their main function is to provide a specific position for subsequent locking operations. The device also includes a vertical column 3 located below the overhead crane 1, on which a hydraulic telescopic rod 6 is fixedly installed. The extended end of the hydraulic telescopic rod 6 is detachably connected to a pressure plate 601, the shape and size of which are adapted to the locking teeth 201. When the overhead crane 1 needs to be stationary at a fixed position on the side rail 2, the hydraulic telescopic rod 6 is extended by controlling the extension operation. The extended hydraulic telescopic rod 6 drives the pressure plate 601 to cooperate with the locking teeth 201, thereby generating lateral resistance to the overhead crane 1, allowing the overhead crane 1 to stop stably at the designated position. The side slope of the locking teeth 201 is rectangular, and the contact surface of the pressure plate 601 is also designed to be rectangular, thereby ensuring sufficient contact surface between the two to transmit lateral resistance, thus ensuring the stability of the sealing effect. Meanwhile, a plastic buffer pad is fixedly installed on the contact surface. The plastic buffer pad can play a buffering role, reduce the impact force generated when the pressure plate 601 contacts the locking tooth 201, and extend the service life of the device.

[0022] The hydraulic telescopic rod 6 and the pressure plate 601 can be arranged vertically, which allows them to selectively insert into the locking teeth 201 at the desired position, thereby completing the locking operation of the overhead crane 1.

[0023] In the second specific embodiment, the arrangement of the locking teeth 201 is changed. Specifically, multiple sets of locking teeth 201 are provided at the bottom of the side rail 2. Each set of locking teeth 201 has symmetrical slopes on both sides of its bottom, and the slopes on both sides form a 90° angle. Its structure can be referred to Figure 3 , Figure 4 Correspondingly, two sets of hydraulic telescopic rods 6 and pressure plates 601 are provided. These two sets of hydraulic telescopic rods 6 and two sets of pressure plates 601 are symmetrically and inclinedly arranged on the vertical column 3, and the two sets of hydraulic telescopic rods 6 are required to form a 90° angle between them. When it is necessary to fix the overhead crane 1, the operator can adjust the position of the two sets of pressure plates 601 by controlling the hydraulic telescopic rods 6, so that the two sets of pressure plates 601 can press against each other on the corresponding slope surface of the corresponding locking teeth 201.

[0024] Furthermore, each set of pressure plates 601 is fixedly equipped with a laser rangefinder 602. The laser rangefinder 602 is used to detect the distance between the side slope of the locking teeth 201 and the pressure plate 601. Each set of laser rangefinders 602 is located in the middle position on one side of the pressure plate 601. When the crane 1 moves laterally on the side rail 2, the laser rangefinder 602 records the shape information of the locking teeth 201 it passes in real time and transmits this information to the controller. By analyzing and processing this information, the controller can determine the arrangement state of the locking teeth 201, and then determine the most suitable stopping position of the crane 1 based on the arrangement state, ensuring that the hydraulic telescopic rod 6 can accurately deliver the pressure plate 601 to the side of the corresponding locking tooth 201, achieving accurate sealing of the crane. Compared with the previous embodiment, this embodiment is more flexible in use and can adapt to more different usage scenarios.

[0025] However, some problems were found during the actual use of the second embodiment. Since the pressure plate 601 can only move obliquely, in some positions, there is a situation where the pressure plate 601 only makes partial contact with the locking teeth 201; that is, only half or less of the surface of the pressure plate 601 contacts the side of the locking teeth 201. This situation leads to uneven force distribution on the upper and lower ends of the pressure plate 601, affecting the stability of the sealing effect.

[0026] To address the aforementioned issues, the device is improved in the third embodiment. A sliding assembly 5 is slidably sleeved on the vertical column 3, and two sets of hydraulic telescopic rods 6 are fixedly mounted on the sliding assembly 5. Simultaneously, a pushing device 4 is fixedly mounted on the vertical column 3; the pushing device 4 can be a hydraulic telescopic device. The telescopic end of the pushing device 4 is fixedly connected to the sliding assembly 5.

[0027] When the overhead crane 1 stops at a fixed position on the side rail 2, the hydraulic telescopic device can drive the sliding kit 5 to move up and down. Through the up and down movement of the sliding kit 5, the hydraulic telescopic rod 6 and the pressure plate 601 can be aligned with the most suitable locking teeth 201. Then, the hydraulic telescopic rod 6 drives the pressure plate 601 to press against the locking teeth 201, thus completing the physical locking of the overhead crane 1.

[0028] In this embodiment, before the hydraulic telescopic rod 6 pushes the pressure plate 601 to move, the sliding kit 5 needs to be moved up and down once by the pushing device 4. During this process, the controller outputs the scanning distance change data of the corresponding locking teeth 201 through the laser rangefinder 602. By analyzing this data, the locking teeth 201 with the largest contact area can be detected. Then, based on the detection results, the hydraulic telescopic rod 6 is adjusted to extend from a suitable angle by the pushing device 4, so that the pressure plate 601 and the locking teeth 201 achieve maximum area contact, ensuring the stability and reliability of the sealing effect.

[0029] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An automatic sealing device for outdoor overhead cranes, characterized in that, Includes a locking component disposed on the side rail (2), the locking component being disposed along the side rail (2); The device also includes a vertical column (3) set below the crane (1), on which a hydraulic telescopic rod (6) is fixedly installed. A pressure plate (601) is fixedly installed at the extended end of the hydraulic telescopic rod (6). The pressure plate (601) is adapted to the engaging component. After the hydraulic telescopic rod (6) extends, it can drive the pressure plate (601) to cooperate with the engaging component, thereby generating lateral resistance to the crane (1).

2. The automatic sealing device for an outdoor overhead crane as described in claim 1, characterized in that, The engaging component includes multiple sets of locking teeth (201) set at the bottom of the side rail (2). Each set of locking teeth (201) has symmetrical slopes on both sides at the bottom. The hydraulic telescopic rod (6) and the pressure plate (601) are each provided in two sets. The two sets of hydraulic telescopic rods (6) and the two sets of pressure plates (601) are symmetrically inclined on the vertical column (3).

3. The automatic sealing device for an outdoor overhead crane as described in claim 2, characterized in that, A sliding assembly (5) is slidably sleeved on the vertical column (3), and two sets of hydraulic telescopic rods (6) are fixedly mounted on the sliding assembly (5). A pushing device (4) is fixedly mounted on the vertical column (3), and the telescopic end of the pushing device (4) is fixedly connected to the sliding assembly (5).

4. An automatic sealing device for outdoor overhead cranes as described in claim 2 or 3, characterized in that, Each of the pressure plates (601) is fixedly equipped with a laser rangefinder (602) for detecting the distance between the side slope of the locking tooth (201) and the pressure plate (601).

5. The automatic sealing device for an outdoor overhead crane as described in claim 4, characterized in that, The pressure plate (601) is detachably connected to the hydraulic telescopic rod (6).

6. The automatic sealing device for an outdoor overhead crane as described in claim 5, characterized in that, The included angle between the two sets of hydraulic telescopic rods (6) is the same as the included angle between the slopes on both sides of the locking tooth (201).

7. An automatic sealing device for an outdoor overhead crane as described in claim 6, characterized in that, Each laser rangefinder (602) is located in the middle of one side of the pressure plate (601).

8. The automatic sealing device for an outdoor overhead crane as described in claim 6, characterized in that, The included angle between the two sets of hydraulic telescopic rods (6) and the included angle between the two sides of the slope of the locking tooth (201) are both right angles.

9. An automatic sealing device for an outdoor overhead crane as described in claim 6, characterized in that, The contact surface between the pressure plate (601) and the locking tooth (201) is rectangular.

10. An automatic sealing device for an outdoor overhead crane as described in claim 7, characterized in that, The surface of the pressure plate (601) is provided with a cushioning pad made of plastic.

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