Automatic storage device for lifting hook of lorry-mounted crane

Abstract

The utility model relates to the technical field of lorry-mounted cranes, and discloses an automatic lorry-mounted crane hook storage device which comprises a hoisting jib, a supporting mounting frame is fixedly mounted on one side of the hoisting jib, and a supporting mounting baffle is fixedly mounted on the side, close to the hoisting jib, of the supporting mounting frame. A storage adjusting mechanism is arranged at the bottom end of the supporting mounting baffle; the storage adjusting mechanism comprises a hydraulic cylinder. According to the automatic storage device for the lorry-mounted crane hook, lifting of a movable adjusting rod can be accurately and conveniently adjusted through a hydraulic cylinder, then a supporting transverse plate and a storage assembly are driven to integrally move up and down, a first motor drives an adjusting two-way lead screw to rotate, and two sliding screw blocks in threaded connection to the adjusting two-way lead screw can move face to face or back to back in the axial direction of the lead screw; by means of the design, the storage device can easily adapt to the lifting hooks of different sizes, and the use convenience and the working efficiency are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of truck-mounted crane technology, specifically to an automatic hook storage device for truck-mounted cranes. Background Technology

[0002] A truck-mounted crane is a lifting device installed on a vehicle, widely used in logistics transportation, engineering rescue, and other fields. When the truck-mounted crane is not in operation, the proper storage of the hook is a crucial step in ensuring equipment safety and preventing interference. Traditional hook storage methods are mostly manual, requiring operators to climb to a high point on the crane to hang the hook in the designated position. This method has many drawbacks: firstly, manual operation poses significant safety hazards, especially when working at heights and the ground is uneven, increasing the risk of falls; secondly, the operation is cumbersome and time-consuming, severely impacting work efficiency in emergency relocations or scenarios involving frequent crane use. Therefore, an automatic hook storage device for truck-mounted cranes is needed for this purpose.

[0003] However, due to the poor storage and adjustment capabilities of existing automatic hook retraction devices for truck-mounted cranes, it is inconvenient to adjust the height and distance of the retraction device according to usage needs during actual use. It is not convenient to retract hooks at different heights, and can only retract hooks at a certain height. Furthermore, it is not convenient to effectively store and place hooks of different sizes, thus affecting the ease of use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide an automatic hook storage device for truck-mounted cranes, so as to solve the problem mentioned in the background art that it is inconvenient to adjust the height of the storage device and the storage distance according to the needs of use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automatic hook storage device for a truck-mounted crane, comprising a crane boom, a support mounting frame fixedly installed on one side of the crane boom, a support mounting baffle fixedly installed on the side of the support mounting frame near the crane boom, and a storage adjustment mechanism provided at the bottom end of the support mounting baffle;

[0008] The storage and adjustment mechanism includes hydraulic cylinders. Two hydraulic cylinders are fixedly installed at the top of the support mounting baffle. Movable adjustment rods are fixedly installed at the output ends of the two hydraulic cylinders. The movable adjustment rods are located at the bottom end of the support mounting baffle.

[0009] Preferably, a support plate is fixedly installed at the bottom end of the movable adjusting rod, and a positioning groove is provided on the side of the support plate near the support mounting frame.

[0010] Preferably, a first motor is fixedly installed on one side of the supporting cross plate, and an adjusting bidirectional lead screw is fixedly installed on the output shaft end of the first motor. The adjusting bidirectional lead screw is located inside the positioning slide groove. A movable connecting block is fixedly installed on the inner wall of the positioning slide groove on the side away from the first motor. The side of the adjusting bidirectional lead screw away from the first motor is rotatably connected to one side of the movable connecting block.

[0011] Preferably, the outer end of the adjusting bidirectional lead screw is threaded with two sliding screw blocks, a reinforcing support rod is fixedly installed on one side of the two sliding screw blocks, and a storage frame is fixedly installed on the side of the reinforcing support rod away from the sliding screw blocks.

[0012] Preferably, an infrared laser sensor is fixedly installed at the center of the top of the support plate, and a support roller is movably installed inside the support mounting frame, with the two sides of the support roller rotatably connected to the inner walls of the two sides of the support mounting frame.

[0013] Preferably, a lifting steel rope is movably connected to the outer end of the supporting roller, the lifting steel rope extends to the bottom of the supporting mounting frame, and a lifting hook is fixedly installed at the bottom end of the lifting steel rope.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This automatic hook retraction device for truck-mounted cranes, through the setting of two hydraulic cylinders in the retraction adjustment mechanism, can accurately and conveniently adjust the lifting of the movable adjustment rod, thereby driving the support cross plate and the entire retraction assembly to move up and down. In actual use, when the truck-mounted crane is in different working states or facing hooks of different heights, the operator can quickly adjust the retraction device to a suitable height by controlling the extension and retraction of the hydraulic cylinders. For example, when the crane boom is at different elevation angles, the height matching degree between the retraction device and the hook can be quickly adjusted, effectively solving the problem that traditional devices can only retract hooks of fixed heights, greatly improving the adaptability of the retraction device to different working conditions, making hook retraction work unrestricted by height, and significantly improving the convenience of use and work efficiency.

[0016] 2. This automatic hook storage device for truck-mounted cranes, through the cooperation of an adjusting double-acting screw and sliding blocks, allows for flexible adjustment of the distance between two storage frames. The first motor drives the adjusting double-acting screw to rotate, and the two sliding blocks threaded onto it move in opposite directions along the screw axis, thereby driving the storage frames to move synchronously. This design allows the storage device to easily adapt to hooks of different sizes. Whether it is a small, light hook or a large, heavy hook, the hook can be stably stored by adjusting the spacing of the storage frames. Compared with the problem of traditional devices being difficult to adapt to hooks of different sizes, this device greatly expands the scope of application, avoids storage inconvenience caused by differences in hook size, and improves the versatility and practicality of the device.

[0017] 3. The automatic hook retraction device of this truck-mounted crane, through the installation of an infrared laser sensor, can monitor the relative position of the hook and the retraction device in real time, providing accurate positioning data for automatic retraction. When the hook is rising, the infrared laser sensor continuously detects its position information and feeds the data back to the control system on the crane. Once the hook reaches the appropriate retraction position, the control system can automatically start the retraction action to ensure that the hook enters the retraction placement frame accurately and smoothly. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the storage and adjustment mechanism of this utility model;

[0020] Figure 3 This is a partial structural diagram of the storage and adjustment mechanism of this utility model. Figure 1 ;

[0021] Figure 4 This is a partial structural diagram of the storage and adjustment mechanism of this utility model. Figure 2 .

[0022] In the diagram: 1. Crane boom; 2. Support mounting frame; 3. Support mounting baffle; 4. Storage and adjustment mechanism; 401. Hydraulic cylinder; 402. Movable adjusting rod; 403. Support cross plate; 404. Positioning slide groove; 405. First motor; 406. Adjusting double-acting screw; 407. Movable connecting block; 408. Sliding screw block; 409. Reinforcing support rod; 410. Storage and placement frame; 5. Infrared laser sensor; 6. Support roller; 7. Lifting steel rope; 8. Lifting hook. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-4 This utility model provides a technical solution: an automatic hook storage device for a truck-mounted crane, including a crane boom 1, a support mounting frame 2 fixedly installed on one side of the crane boom 1, a support mounting baffle 3 fixedly installed on the side of the support mounting frame 2 near the crane boom 1, and a storage adjustment mechanism 4 provided at the bottom end of the support mounting baffle 3.

[0025] The storage and adjustment mechanism 4 includes hydraulic cylinders 401. Two hydraulic cylinders 401 are fixedly installed on the top of the support mounting baffle 3. Movable adjusting rods 402 are fixedly installed on the output ends of the two hydraulic cylinders 401. The movable adjusting rods 402 are located at the bottom end of the support mounting baffle 3. A support cross plate 403 is fixedly installed at the bottom end of the movable adjusting rods 402. A positioning groove 404 is opened on the side of the support cross plate 403 near the support mounting frame 2. A first motor 405 is fixedly installed on one side of the support cross plate 403. An adjusting double-acting screw 406 is fixedly installed on the output shaft end of the first motor 405. The adjusting double-acting screw 406 is located inside the positioning groove 404. A movable connecting block 407 is fixedly installed on the inner wall of the positioning groove 404 on the side away from the first motor 405. The adjusting double-acting screw 406 rotates on the side away from the first motor 405. The movable connection is on one side of the movable connecting block 407. The outer end of the adjusting double screw 406 is threaded with two sliding screw blocks 408. A reinforcing support rod 409 is fixedly installed on one side of the two sliding screw blocks 408. A storage and placement frame 410 is fixedly installed on the side of the reinforcing support rod 409 away from the sliding screw blocks 408. The hydraulic cylinder 401 is started to push the movable adjusting rod 402 to extend and retract in the vertical direction. The extension and retraction of the movable adjusting rod 402 causes the support plate 403 at its bottom end to move up and down synchronously. The first motor 405 is started to drive the adjusting double screw 406 to rotate in the positioning slide groove 404. When the adjusting double screw 406 rotates, the two sliding screw blocks 408 will move towards or away from each other along the axial direction of the adjusting double screw 406. The movement of the sliding screw blocks 408 drives the storage and placement frame 410 to move synchronously through the reinforcing support rod 409.

[0026] An infrared laser sensor 5 is fixedly installed at the middle of the top of the support plate 403. An infrared laser sensor 5 is fixedly installed at the middle of the top of the support plate 403. A support roller 6 is movably installed inside the support mounting frame 2. The two sides of the support roller 6 are rotatably connected to the inner walls of the two sides of the support mounting frame 2. A lifting steel rope 7 is movably connected to the outer end of the support roller 6. The lifting steel rope 7 extends to the bottom of the support mounting frame 2. A lifting hook 8 is fixedly installed at the bottom end of the lifting steel rope 7. The infrared laser sensor 5 works to monitor the relative position of the lifting hook 8 and the storage device in real time.

[0027] Working Principle: When the hook needs to be retracted, the device is first connected to the power supply on the crane. Power is supplied to the equipment on the device via electrical connection, and the equipment is also electrically connected to the crane's control system for easy control. At the start of the retraction operation, the lifting steel rope 7, under external power such as the crane's winch mechanism, drives the lifting hook 8 to rise. When it reaches a certain height, the infrared laser sensor 5 at the top center of the supporting horizontal plate 403 activates, continuously emitting infrared beams and receiving reflected signals. By calculating the time difference between the emitted and received signals, the relative position of the lifting hook 8 and the retraction device is monitored in real time, and the position information is converted into an electrical signal and transmitted to the crane control system. When the hook 9 needs to be retracted, if the crane boom 1 is at different angles, or the hook 9 is at different heights due to operational requirements, the hydraulic cylinder 401 can be activated to push the movable adjusting rod 402 to extend and retract vertically. The extension and retraction of the movable adjusting rod 402 causes the supporting horizontal plate 403 at its bottom to move up and down synchronously. This allows the height of the entire storage assembly mounted on the support plate 403 to be adjusted, lowering the storage frame 410 to below the lifting hook 9, preparing it for hook storage. For lifting hooks 9 of different sizes, the starting motor 405 between the storage frames 410 needs to be adjusted to drive the adjusting double-sided screw 406 to rotate within the positioning groove 404. When the adjusting double-sided screw 406 rotates, the two sliding blocks 408 will move towards or away from each other along the axial direction of the adjusting double-sided screw 406. The movement of the storage frame 410 is driven synchronously by the reinforcing support rod 409, thereby realizing flexible adjustment of the distance between the two storage frames 410. For large hooks, the storage frames 410 can be moved further apart to increase the spacing; for small hooks, the storage frames 410 can be moved closer together to ensure that hooks 9 of different sizes can be stably stored in the storage frames 410. The whole process does not require manual climbing operation, realizing the automation and precision of hook storage, and effectively improving the safety and efficiency of operation.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. An automatic hook storage device for a truck-mounted crane, comprising a crane boom (1), characterized in that: A support mounting frame (2) is fixedly installed on one side of the lifting boom (1), and a support mounting baffle (3) is fixedly installed on the side of the support mounting frame (2) near the lifting boom (1). A storage adjustment mechanism (4) is provided at the bottom of the support mounting baffle (3). The storage adjustment mechanism (4) includes a hydraulic cylinder (401). Two hydraulic cylinders (401) are fixedly installed at the top of the support mounting baffle (3). Movable adjustment rods (402) are fixedly installed at the output ends of the two hydraulic cylinders (401). The movable adjustment rods (402) are located at the bottom end of the support mounting baffle (3).

2. The automatic hook storage device for a truck-mounted crane according to claim 1, characterized in that: The bottom end of the movable adjusting rod (402) is fixedly installed with a support plate (403), and the support plate (403) has a positioning groove (404) on the side near the support mounting frame (2).

3. The automatic hook storage device for a truck-mounted crane according to claim 2, characterized in that: A first motor (405) is fixedly installed on one side of the support plate (403). An adjustable bidirectional lead screw (406) is fixedly installed on the output shaft end of the first motor (405). The adjustable bidirectional lead screw (406) is located inside the positioning slide groove (404). A movable connecting block (407) is fixedly installed on the inner wall of the positioning slide groove (404) on the side away from the first motor (405). The side of the adjustable bidirectional lead screw (406) away from the first motor (405) is rotatably connected to the side of the movable connecting block (407).

4. The automatic hook storage device for a truck-mounted crane according to claim 3, characterized in that: The outer end of the adjusting bidirectional lead screw (406) is threaded with two sliding screw blocks (408). A reinforcing support rod (409) is fixedly installed on one side of the two sliding screw blocks (408). A storage and placement frame (410) is fixedly installed on the side of the reinforcing support rod (409) away from the sliding screw blocks (408).

5. The automatic hook storage device for a truck-mounted crane according to claim 4, characterized in that: An infrared laser sensor (5) is fixedly installed at the center of the top of the support plate (403), and a support roller (6) is movably installed inside the support mounting frame (2). The two sides of the support roller (6) are rotatably connected to the inner walls of the two sides of the support mounting frame (2).

6. The automatic hook storage device for a truck-mounted crane according to claim 5, characterized in that: The outer end of the support roller (6) is movably connected to a lifting steel rope (7), which extends to the bottom of the support mounting frame (2), and a lifting hook (8) is fixedly installed at the bottom end of the lifting steel rope (7).

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