A positioning accurate crane

Abstract

The utility model discloses a crane of accurate positioning, including installing rod, installing rod one side is equipped with the guide rail, the guide rail below is equipped with the drive arrangement, the drive arrangement is connected the connecting block below through the chain, the connecting block bottom fixedly equipped with the lifting hook, be equipped with the guide assembly that is connected with installing rod on the lifting hook. The utility model discloses through guide assembly design has improved the positioning accuracy of hoisting operation significantly, and the cooperation of the sliding slot and the threaded block in the guide assembly forms rigid sliding pair, ensures that the lifting hook is always limited to linear path in the vertical movement process, avoids the positioning deviation of traditional crane because of chain swing, simultaneously, the lifting displacement of threaded block can be accurately controlled to the threaded rod of motor drive, and then through the dynamic adjustment posture of fixed plate and telescopic link, and the sliding cooperation of fixed ring and installing rod further enhances the anti-lateral sway ability.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to a crane with precise positioning. Background Technology

[0002] In utility model patent application CN215160486U, published on December 14, 2021, entitled "A Crane," this utility model discloses a crane belonging to the field of lifting equipment technology. The key technical points of the crane are: a crane including a slewing platform with a lower boom hinged thereon; a luffing assembly for controlling the rotation of the lower boom relative to the slewing platform; and a counterweight block disposed on the lower boom. To address the problems existing in the prior art, a counterweight block is provided on the lower boom. The counterweight block itself has a certain weight, and by providing the lower boom with a component force towards the center of gravity, it avoids the adverse effects on operating efficiency caused by separately installing an intermediate boom or upper boom. Simultaneously, by providing the counterweight block, the center of gravity of the lower boom can be moved towards the side of the lower boom away from the slewing platform, thereby effectively increasing the lower boom's lowering force.

[0003] In the aforementioned patents or prior art, traditional cranes are prone to swaying and offset during lifting, which can cause the hook to swing, resulting in inaccurate positioning and affecting the safety of personnel and equipment. Utility Model Content

[0004] The purpose of this invention is to provide a crane with precise positioning to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crane with precise positioning, including a mounting rod, a guide rail on one side of the mounting rod, a drive device below the guide rail, the drive device being connected to a connecting block below via a chain, a hook fixedly mounted at the bottom of the connecting block, a guide assembly connected to the mounting rod on the hook, the guide assembly including a groove formed on one side of the mounting rod and communicating with its interior, a threaded block slidably mounted in the groove, a fixing plate fixedly mounted at the end of the threaded block, the fixing plate being fixedly connected to the connecting block via a telescopic rod, and a drive assembly for moving the threaded block up and down inside the mounting rod.

[0006] Furthermore, the drive assembly includes a threaded rod rotatably disposed within the mounting rod and a motor fixed to the mounting rod, wherein the output end of the motor is connected to the threaded rod, and the threaded block is threadedly engaged with the motor.

[0007] Furthermore, a fixing ring is fixedly provided at the rear end of the fixing plate, and the fixing ring is sleeved on the outer surface of the mounting rod and slides in cooperation with the mounting rod.

[0008] Furthermore, the inner wall of the fixing ring is provided with a rubber pad.

[0009] Furthermore, a base is fixedly provided at the bottom end of the mounting rod.

[0010] Furthermore, the base is provided with multiple reinforcing ribs that are connected to the mounting rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are: this crane with precise positioning is reasonable and has the following advantages: This crane significantly improves the positioning accuracy of lifting operations through its guide component design. The cooperation between the sliding groove and the threaded block in the guide component forms a rigid sliding pair, ensuring that the hook is always restricted to a straight path during vertical movement. This avoids the positioning deviation caused by chain swing in traditional cranes. At the same time, the motor-driven threaded rod can precisely control the lifting and lowering displacement of the threaded block, and then dynamically adjust the hook's posture through the fixed plate and telescopic rod, so that it can remain stable under complex working conditions. The sliding cooperation between the fixed ring and the mounting rod further enhances the anti-lateral sway capability. Its built-in rubber pad not only reduces friction noise, but also absorbs instantaneous vibration energy through elastic deformation. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention. Figure 1 ; Figure 2 This is a three-dimensional structural diagram of the present invention. Figure 2 ; Figure 3 This is a structural schematic diagram of the cross-section of the mounting rod of this utility model; Figure 4 This is a three-dimensional structural diagram of the telescopic rod of this utility model. Figure 1 ; Figure 5 This is a three-dimensional structural diagram of the telescopic rod of this utility model. Figure 2 .

[0013] In the diagram: 100, mounting rod; 101, base; 102, guide rail; 103, drive device; 104, chain; 105, connecting block; 106, hook; 200, slide rail; 201, threaded rod; 202, motor; 203, threaded block; 204, fixing plate; 205, telescopic rod; 206, fixing ring. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-5 The present invention provides a technical solution as follows: Example 1: A precision-positioning crane includes a mounting rod 100. A guide rail 102 is provided on one side of the mounting rod 100. A drive device 103 is provided below the guide rail 102. The drive device 103 is connected to a connecting block 105 below via a chain 104. A hook 106 is fixedly provided at the bottom end of the connecting block 105. A guide assembly connected to the mounting rod 100 is provided on the hook 106. The guide assembly includes a slide groove 200 formed on one side of the mounting rod 100 and communicating with its interior. A threaded block 203 is slidably provided in the slide groove 200. A fixing plate 204 is fixedly provided at the end of the threaded block 203. The fixing plate 204 is fixedly connected to the connecting block 105 via a telescopic rod 205. A drive assembly for moving the threaded block 203 up and down is provided inside the mounting rod 100.

[0016] The drive assembly includes a threaded rod 201 rotatably disposed within the mounting rod 100 and a motor 202 fixed to the mounting rod 100. The output end of the motor 202 is connected to the threaded rod 201, and the threaded block 203 is threadedly engaged with the motor 202.

[0017] A fixing ring 206 is fixedly provided at the rear end of the fixing plate 204. The fixing ring 206 is sleeved on the outer surface of the mounting rod 100 and slides in cooperation with the mounting rod 100.

[0018] The inner wall of the fixing ring 206 is provided with a rubber pad.

[0019] The mounting rod 100 is fixedly provided with a base 101 at its bottom end.

[0020] The base 101 is provided with a plurality of reinforcing ribs that are connected to the mounting rod 100.

[0021] Working Principle: In operation, the crane uses a drive unit 103 to raise and lower a chain 104, causing the connecting block 105 and hook 106 to move up and down, thus lifting and transporting goods. A guide assembly ensures the hook 106 remains stable during movement, preventing swaying and improving positioning accuracy. A threaded block 203 slides along a groove 200, causing the fixed plate 204 and telescopic rod 205 to move synchronously, limiting the swing of the hook 106. A motor 202 drives the threaded rod 201 to rotate, causing the threaded block 203 to move up and down, thereby adjusting the position of the telescopic rod 205 and ensuring the hook 106 always moves in a straight line. The telescopic rod 205, as a connecting component, can extend and retract to accommodate the lifting stroke of the hook 106, while simultaneously transmitting guiding force to ensure the movement of the hook 106 is synchronized with the guide assembly. A fixing ring 206 is fitted over the mounting rod 100 to enhance the stability of the guide assembly and reduce swaying. A rubber pad buffers vibration and reduces frictional noise and wear between the fixing ring 206 and the mounting rod 100. The base 101 is rigidly connected to the mounting rod 100 via reinforcing ribs, dispersing bending moments and lateral forces during hoisting and preventing the crane from tilting. The triangular or radial arrangement of the reinforcing ribs significantly improves bending stiffness, making it suitable for high-load conditions.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A precision-positioning crane, comprising a mounting rod (100), characterized in that: The mounting rod (100) is provided with a guide rail (102) on one side, and a driving device (103) is provided below the guide rail (102). The driving device (103) is connected to the connecting block (105) below via a chain (104). A hook (106) is fixedly provided at the bottom end of the connecting block (105). A guide assembly connected to the mounting rod (100) is provided on the hook (106). The guide assembly includes a slide groove (200) opened on one side of the mounting rod (100) and communicating with the interior. A threaded block (203) is slidably provided in the slide groove (200). A fixing plate (204) is fixedly provided at the end of the threaded block (203). The fixing plate (204) is fixedly connected to the connecting block (105) via a telescopic rod (205). The mounting rod (100) is provided with a driving assembly that drives the threaded block (203) to move up and down.

2. The crane with precise positioning according to claim 1, characterized in that: The drive assembly includes a threaded rod (201) rotatably disposed in the mounting rod (100) and a motor (202) fixed on the mounting rod (100). The output end of the motor (202) is connected to the threaded rod (201), and the threaded block (203) is threadedly engaged with the motor (202).

3. A crane with precise positioning according to claim 2, characterized in that: The fixing plate (204) is fixedly provided with a fixing ring (206) at its rear end. The fixing ring (206) is sleeved on the outer surface of the mounting rod (100) and slides in cooperation with the mounting rod (100).

4. A crane with precise positioning according to claim 3, characterized in that: The inner wall of the fixing ring (206) is provided with a rubber pad.

5. A crane with precise positioning according to claim 1, characterized in that: The mounting rod (100) is fixedly provided with a base (101) at its bottom end.

6. A precisely positioned crane according to claim 5, characterized in that: The base (101) is provided with a plurality of reinforcing ribs that are connected to the mounting rod (100).

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