Crane superlift tray anti-collision device

Abstract

The utility model relates to a crane superlift tray anti-collision device which comprises a superlift tray, a limiting sensor and an extension arm are arranged on the superlift tray, one end of a tensioning rope is connected with the side wall of the superlift tray, and the other end of the tensioning rope is connected with the side wall of the superlift tray through an elastic piece after passing through the top end of the extension arm in a sliding mode. The top end of the extension arm extends outwards from the side wall of the superlift tray, so that the contact part of the tensioning rope is suspended on the outer side of the superlift tray and is in contact with surrounding objects prior to the superlift tray; a triggering piece is arranged on the tensioning rope, and the limiting sensor is located on the moving path of the triggering piece and connected with the central controller; after the contact part makes contact with an object, the tensioning rope is tensioned, the triggering piece is driven to move and trigger the limiting sensor, the central controller sends out an early warning signal and controls the crane to stop rotating, collision is actively prevented, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of super-lifting cranes, in particular to an anti-collision device for a super-lifting pallet of a crane. Background Art

[0002] With the rapid development of industrial technology, the integration of various structures, equipment, and modules is increasing, leading to a growing demand for heavy-duty lifting equipment. In industries such as construction, shipbuilding, petrochemicals, power generation, and marine engineering, the installation, maintenance, and disassembly of oversized equipment and modular structures place higher demands on lifting capacity. As a representative example of heavy-duty lifting equipment, the 400T crane's superlift technology can significantly enhance lifting capacity to meet the demands of specialized projects.

[0003] Superlift technology improves a crane's lifting capacity by modifying its structure and counterweight configuration. Under specific conditions, it allows the crane to achieve a higher lifting capacity than standard operating conditions by adding additional counterweight and modifying the main boom configuration. The application of superlift technology enables a crane to exceed its standard lifting capacity under specific conditions, thereby meeting the needs of various large and specialized projects. This technology reduces reliance on the coordinated operation of multiple cranes, improves operational efficiency, and reduces operating costs. At the same time, the use of superlift technology also requires operators to possess a higher level of professional skills and safety awareness to ensure safe operations.

[0004] Currently, the only safety devices for the superlift pallet in the superlift system are a grounding limiter and video surveillance. When the crane is rotating, the superlift pallet has no anti-collision protection device. The main method of preventing the superlift pallet from colliding is through the driver's observation through video surveillance and the on-site supervision of the lifting commander. However, in actual situations on site, the driver and the lifting commander are often focused on the lifting operation and ignore the position of the superlift pallet. This leads to the superlift pallet colliding with surrounding obstacles frequently. An active anti-collision device is urgently needed to prevent accidents and ensure the safety of equipment and personnel. Utility Model Content

[0005] In order to overcome the above problems, the present invention provides a crane super-lifting pallet anti-collision device. The technical solution adopted by the present invention to solve the technical problem is as follows:

[0006] A collision prevention device for a crane super-lifting pallet includes a super-lifting pallet, on which a limit sensor and an extension arm are provided, one end of a tensioning rope is connected to the side wall of the super-lifting pallet, and the other end can slide through the top of the extension arm and is connected to the side wall of the super-lifting pallet through an elastic member, and the top of the extension arm extends outward from the side wall of the super-lifting pallet so that the contact portion of the tensioning rope is suspended outside the super-lifting pallet and contacts surrounding objects before the super-lifting pallet; a triggering member is provided on the tensioning rope, and the limit sensor is located on the moving path of the triggering member, and the limit sensor is connected to a central controller; after the contact portion contacts the object, the tensioning rope is tensioned, driving the triggering member to move and triggering the limit sensor.

[0007] Furthermore, a connection hole is provided on the super-lifting tray, and the extension arm is detachably fixedly connected to the super-lifting tray; one end of the tensioning rope is detachably fixedly connected to the super-lifting tray, and the other end is detachably fixedly connected to the super-lifting tray through an elastic member.

[0008] Furthermore, the super-lifting pallet is provided with a lifting lug, and the tensioning rope and the elastic member are both hung on the lifting lug to be detachably fixedly connected to the super-lifting pallet.

[0009] Furthermore, the elastic member is a spring, one end of the spring is fixedly connected to one end of the tensioning rope, and the other end is hung on the lifting ear.

[0010] Furthermore, a roller-skating assembly is provided at the top end of the extension arm, and the tensioning rope slides relative to the extension arm through the roller-skating assembly.

[0011] Furthermore, the roller skating assembly includes a clamping seat, a roller is provided in the clamping seat, a V-shaped groove is provided around the circumference of the roller, and the tensioning rope passes through the V-shaped groove to be connected to the roller in a rolling manner; a limit piece is also provided on the clamping seat to prevent the tensioning rope from escaping from the V-shaped groove.

[0012] Furthermore, a tensioning device is provided on the tensioning rope to tension the tensioning rope.

[0013] Furthermore, the tensioning device includes a tensioning seat, which is provided with through holes at the front and rear ends of the tensioning seat, and a roller and a handle are provided on the tensioning seat. The roller is provided with a tensioning hole that passes through the roller, and the tensioning rope passes through the through hole at the rear end of the tensioning seat, the tensioning hole and the through hole at the front end of the tensioning seat in sequence. The handle is rotated to drive the roller to rotate, and the tensioning rope is wrapped around the roller to tension the tensioning rope.

[0014] The beneficial effects of the utility model are:

[0015] The device includes a super-lifting pallet, on which a limit sensor and an extension arm are provided. One end of the tensioning rope is connected to the side wall of the super-lifting pallet, and the other end can slide through the top of the extension arm and is connected to the side wall of the super-lifting pallet through an elastic member. The top of the extension arm extends outward from the side wall of the super-lifting pallet so that the contact portion of the tensioning rope is suspended outside the super-lifting pallet and contacts the surrounding objects before the super-lifting pallet; a triggering member is provided on the tensioning rope, and the limit sensor is located on the moving path of the triggering member, and the limit sensor is connected to the central controller; after the contact portion contacts the object, the tensioning rope is tensioned, driving the triggering member to move and triggering the limit sensor, and the central controller sends a warning signal and controls the crane to stop rotating, actively preventing collisions and improving operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, wherein:

[0017] Figure 1 is a three-dimensional view of the anti-collision device;

[0018] Figure 2 It is a partial enlarged view of the anti-collision device;

[0019] Figure 3 It is a three-dimensional view of the roller skate assembly;

[0020] Figure 4 It is a three-dimensional view of the tensioning device.

[0021] Figure number mark:

[0022] 100. Super lift tray; 101. Limit sensor; 102. Extension arm; 103. Tensioning rope; 104. Elastic member; 105. Trigger member; 106. Roller assembly; 1061. Clamp seat; 1062. Roller; 1063. Limit member; 107. Tensioning device; 1071. Tensioning seat; 1072. Through hole; 1073. Roller; 1074. Handle; 1075. Tensioning hole. DETAILED DESCRIPTION

[0023] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of the specific embodiment of the present invention "a crane super-lifting pallet anti-collision device" in conjunction with the accompanying drawings.

[0024] See also Figure 1 and Figure 2In this embodiment, the device includes a super-lifting tray 100, on which a limit sensor 101 and an extension arm 102 are provided. One end of a tensioning rope 103 is connected to the side wall of the super-lifting tray 100, and the other end is slidable through the top of the extension arm 102 and connected to the side wall of the super-lifting tray 100 through an elastic member 104. The top of the extension arm 102 extends outward from the side wall of the super-lifting tray 100, so that the contact portion of the tensioning rope 103 is suspended outside the super-lifting tray 100 and takes precedence over the super-lifting tray 100. Contact with surrounding objects; a trigger part 105 is provided on the tensioning rope 103, and the limit sensor 101 is located on the moving path of the trigger part 105, and the limit sensor 101 is connected to the central controller; after the contact part contacts the object, the tensioning rope 103 is tightened, driving the trigger part 105 to move and triggering the limit sensor 101, and the limit sensor 101 transmits the signal to the central controller, and the central controller sends out an early warning signal and controls the super crane to stop operating; this device can actively prevent collision accidents and ensure the safety of operation.

[0025] See further Figure 2 In this embodiment, a connecting hole is provided on the super-lifting pallet 100, and the extension arm 102 is detachably fixedly connected to the super-lifting pallet 100, preferably through a threaded connection; one end of the tensioning rope 103 is detachably fixedly connected to the super-lifting pallet 100, and the other end is detachably fixedly connected to the super-lifting pallet 100 through an elastic member 104. Preferably, a lifting lug is provided on the super-lifting pallet 100, and the tensioning rope 103 and the elastic member 104 are both detachably fixedly connected to the super-lifting pallet 100 through the hanging lifting lug; in this way, when the super-lifting pallet 100 is hoisted, the extended extension arm 102, tensioning rope 103 and elastic member 104 can all be removed to facilitate the subsequent transportation of the pallet.

[0026] More specifically, in this embodiment, the elastic member 104 is preferably a spring, one end of the spring is fixedly connected to one end of the tensioning rope 103, and the other end of the spring is hung on the lifting ear.

[0027] See further Figure 2 and Figure 3 In this embodiment, a roller pulley assembly 106 is provided at the top of the extension arm 102, and the tensioning rope 103 slides relative to the extension arm 102 through the roller pulley assembly 106, thereby preventing the tensioning rope 103 from getting stuck during the sliding process and improving the response sensitivity of the anti-collision device.

[0028] See further Figure 3In this embodiment, the roller skating assembly 106 includes a clamping seat 1061, a roller 1062 is provided in the clamping seat 1061, and a V-shaped groove is provided on the circumference of the roller 1062. The tensioning rope 103 is connected to the roller 1062 through the V-shaped groove; a limiting member 1063 is also provided on the clamping seat 1061 to prevent the tensioning rope 103 from escaping from the V-shaped groove. When the tensioning rope 103 moves, it slides in the V-shaped groove, driving the roller 1062 to roll, further reducing the resistance of the tensioning rope 103 to the movement relative to the extension arm 102, making its movement smoother and more stable.

[0029] See further Figure 1 and Figure 4 In this embodiment, a tensioning device 107 is further provided on the tensioning rope 103 to tension the tensioning rope 103; the tensioning device 107 includes a tensioning seat 1071, and the tensioning seat 1071 is provided with through holes 1072 at the front and rear ends. The tensioning seat 1071 is provided with a roller 1073 and a handle 1074, and the roller 1073 is provided with a tensioning hole 1075 that passes through the roller 1073. The tensioning rope 103 passes through the through hole 1072 at the rear end of the tensioning seat 1071, the tensioning hole 1075 and The tensioning seat 1071 has a through hole 1072 at the front end, and the handle 1074 is rotated to drive the roller 1073 to rotate, and the tensioning rope 103 is wrapped around the roller 1073 to tension the tensioning rope 103; the tensioning force of the tensioning rope 103 can be fixed by the friction between the roller 1073 and the tensioning seat 1071 to prevent the roller 1073 from retreating; a limiting mechanism can also be set between the handle 1074 and the tensioning seat 1071 to limit the retreat of the handle 1074 and the roller 1073 at the same time.

[0030] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A crane super-lifting pallet anti-collision device, comprising a super-lifting pallet (100), characterized in that: The super-lifting tray (100) is provided with a limit sensor (101) and an extension arm (102). One end of a tension rope (103) is connected to the side wall of the super-lifting tray (100), and the other end is slidable through the top of the extension arm (102) and connected to the side wall of the super-lifting tray (100) through an elastic member (104). The top of the extension arm (102) extends outward from the side wall of the super-lifting tray (100) so that the contact portion of the tension rope (103) is The invention relates to a device for controlling a lifting device and a lifting mechanism, wherein the lifting device (101) is suspended outside the super-lifting tray (100) and contacts surrounding objects before the super-lifting tray (100); a triggering member (105) is provided on the tensioning rope (103); the limit sensor (101) is located on the moving path of the triggering member (105); and the limit sensor (101) is connected to a central controller; after the contact portion contacts an object, the tensioning rope (103) is tightened, driving the triggering member (105) to move and triggering the limit sensor (101).

2. The anti-collision device for a crane lifting pallet according to claim 1, characterized in that: The super-lifting tray (100) is provided with a connection hole, and the extension arm (102) is detachably fixedly connected to the super-lifting tray (100); one end of the tensioning rope (103) is detachably fixedly connected to the super-lifting tray (100), and the other end is detachably fixedly connected to the super-lifting tray (100) via an elastic member (104).

3. The anti-collision device for a crane lifting pallet according to claim 2, characterized in that: The super-lifting tray (100) is provided with a lifting lug, and the tensioning rope (103) and the elastic member (104) are both connected to the super-lifting tray (100) in a detachable fixed manner by hanging on the lifting lug.

4. The anti-collision device for a crane lifting pallet according to claim 3, characterized in that: The elastic member (104) is a spring, one end of which is fixedly connected to one end of the tensioning rope (103), and the other end of which is hung on the lifting ear.

5. The anti-collision device for a crane lifting pallet according to any one of claims 1 to 4, characterized in that: A wheel pulley assembly (106) is provided at the top end of the extension arm (102), and the tension rope (103) slides relative to the extension arm (102) through the wheel pulley assembly (106).

6. The anti-collision device for a crane lifting pallet according to claim 5, characterized in that: The wheel pulley assembly (106) includes a clamping seat (1061), a roller (1062) is arranged in the clamping seat (1061), a V-shaped wire groove is arranged on the circumference of the roller (1062), and the tensioning rope (103) passes through the V-shaped wire groove to be connected with the roller (1062) in a rolling manner; a limiting member (1063) is also provided on the clamping seat (1061) to limit the tensioning rope (103) from escaping from the V-shaped wire groove.

7. The anti-collision device for a crane lifting pallet according to claim 5, characterized in that: The tensioning rope (103) is also provided with a tensioning device (107) for tensioning the tensioning rope (103).

8. The anti-collision device for a crane lifting pallet according to claim 7, characterized in that: The tensioning device (107) comprises a tensioning seat (1071), the front and rear ends of the tensioning seat (1071) are both provided with through holes (1072), the tensioning seat (1071) is provided with a roller (1073) and a handle (1074), the roller (1073) is provided with a tensioning hole (1075) passing through the roller (1073), the tensioning rope (103) passes through the rear end through hole (1072) of the tensioning seat (1071), the tensioning hole (1075) and the front end through hole (1072) of the tensioning seat (1071) in sequence, the handle (1074) is rotated to drive the roller (1073) to rotate, and the tensioning rope (103) is wound around the roller (1073) to tension the tensioning rope (103).

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