A large weight single cantilever handpiece

Abstract

The utility model belongs to hoisting equipment technical field especially relates to a big weight single cantilever machine head, including base, hydraulic telescopic column no.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically a heavy-duty single cantilever crane head. Background Technology

[0002] In today's booming modern industrial production, scenarios such as the assembly of massive mechanical parts in heavy equipment manufacturing workshops, the hoisting of heavy prefabricated components at large bridge construction sites, and the transfer of heavy goods in densely packed areas of logistics and warehousing centers all heavily rely on critical lifting equipment like heavy-duty single-cantilever cranes. Thanks to their unique structural design, these cranes can lift, move, and precisely position heavy objects within specific spaces, becoming a crucial link in ensuring the efficient operation of industrial production. However, as the scale of industrial production continues to expand and operational scenarios become increasingly complex, the performance requirements for lifting equipment are becoming more stringent, and the limitations of traditional heavy-duty single-cantilever cranes in terms of structural design are gradually becoming apparent.

[0003] Traditional heavy-duty single-cantilever cranes have relatively fixed functions for their lifting and counterweight units. Faced with variations in the weight and size of objects being lifted, and complex and ever-changing working environments, they struggle to achieve flexible and adaptable adjustments. When lifting objects of different weights, the traditional counterweight unit, limited by its mechanical structure and adjustment mechanism, cannot quickly and accurately complete counterweight adjustments. This causes the crane's center of gravity to shift during lifting, significantly reducing stability and potentially leading to serious safety accidents such as equipment tipping over. The lifting unit's limited range of motion and operational flexibility often makes it difficult to reach target objects in confined spaces or at unusual angles, severely restricting operational efficiency. Furthermore, its movement and positioning rely on manual assistance, lacking a precise guidance and marking system. Operators struggle to accurately control the lifting angle and distance, further reducing the equipment's practicality and reliability. Utility Model Content

[0004] The purpose of this invention is to provide a heavy-duty single cantilever machine head to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty single cantilever machine head, including a base and a hydraulic telescopic column, wherein the hydraulic telescopic column is installed inside the base, and a suspension structure is provided above the base, wherein the suspension structure includes a hoisting unit and a counterweight unit, wherein the hoisting unit is installed above the base, and the counterweight unit is installed above the base;

[0006] The counterweight unit includes a counterweight housing, which is located above the base. A motor is installed on the side of the counterweight housing, and the output shaft of the motor is connected to a transmission assembly. A through slot is provided inside the counterweight housing, and a movable lead screw is connected to the other end of the transmission assembly. A sliding rod is provided inside the counterweight housing, and a movable plate is movably connected to the outer surface of the movable lead screw. A configuration hook is provided at the bottom of the movable plate.

[0007] Preferably, the configuration hook passes through the through slot.

[0008] Preferably, the movable plate has a threaded hole inside, and the type of the threaded hole is compatible with the movable lead screw.

[0009] Preferably, the hoisting unit includes a placement housing, which is disposed on top of the first hydraulic telescopic column. A flipping seat is disposed inside the placement housing. A second hydraulic telescopic column is movably connected inside the flipping seat. A traction arm is movably connected to the top of the second hydraulic telescopic column. A flipping shaft is disposed at the end of the traction arm. A traction rope assembly is disposed on the upper part of the traction arm. A traction hook is disposed at the bottom end of the traction rope assembly.

[0010] Preferably, the side of the placement housing is fixedly connected to the counterweight housing.

[0011] Preferably, the base is provided with a plurality of casters at its bottom, and the casters are equipped with a braking device.

[0012] Preferably, the outer surface of the traction arm is provided with scale markings, which correspond to the rotation angle of the traction arm.

[0013] Preferably, the connection points between the hydraulic telescopic column II and the tilting seat and the traction arm are all equipped with rotary joint bearings.

[0014] 1. This heavy-duty single-cantilever crane head, by installing a counterweight unit, improves the stability of the device when lifting heavy objects by hanging the counterweight block at the bottom of the counterweight hook. Furthermore, when the weight of the object being lifted increases, the motor can be started, causing the transmission assembly to rotate the moving lead screw. This, in turn, moves the counterweight block within the counterweight housing via a moving plate, thereby changing the lever arm and further improving the overall stability of the lifting structure.

[0015] 2. This heavy-duty single cantilever crane head, by installing a hoisting unit, then by activating the hydraulic telescopic column two, pushes the traction arm to rotate around the tilting axis, thereby adjusting the angle of the traction arm. Furthermore, by activating the traction rope assembly, the angle of the traction hook is adjusted, thus completing the hoisting of heavy items. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the top structure of this utility model;

[0019] Figure 4 This is a cross-sectional view of the internal structure of the housing of this utility model.

[0020] In the diagram: 1. Base; 2. Hydraulic telescopic column one; 3. Housing; 4. Tilting seat; 5. Hydraulic telescopic column two; 6. Traction arm; 7. Tilting shaft; 8. Traction rope assembly; 9. Traction hook; 10. Counterweight housing; 11. Motor; 12. Transmission assembly; 13. Through slot; 14. Moving screw; 15. Slide rod; 16. Moving plate; 17. Configuration hook. 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] Please see Figures 1-4 This utility model provides a technical solution: a heavy-duty single cantilever machine head, including a base 1 and a hydraulic telescopic column 2. The hydraulic telescopic column 2 is installed inside the base 1. A suspension structure is provided above the base 1. The suspension structure includes a hoisting unit and a counterweight unit. The hoisting unit is installed above the base 1, and the counterweight unit is installed above the base 1.

[0023] The counterweight unit includes a counterweight housing 10, which is positioned above the base 1. A motor 11 is mounted on the side of the counterweight housing 10, and the output shaft of the motor 11 is connected to a transmission assembly 12. A through slot 13 is provided inside the counterweight housing 10, and a moving lead screw 14 is connected to the other end of the transmission assembly 12. A sliding rod 15 is provided inside the counterweight housing 10, and a moving plate 16 is movably connected to the outer surface of the moving lead screw 14. A mounting hook 17 is provided at the bottom of the moving plate 16. By installing the counterweight unit, when heavy objects need to be lifted, the counterweight is hung at the bottom of the mounting hook 17, thereby improving the stability of the device. Furthermore, when the weight of the object being lifted increases, the motor 11 can be started, causing the motor 11 to drive the transmission assembly 12, which in turn causes the moving lead screw 14 to rotate. This, in turn, causes the counterweight to move inside the counterweight housing 10 via the moving plate 16, thereby changing the lever arm and improving the overall stability of the lifting structure.

[0024] The hook 17 is configured to pass through the through slot 13, so that the moving plate 16 can drive the hook 17 and then drive the counterweight to move.

[0025] The movable plate 16 has a threaded hole inside, and the type of the threaded hole is compatible with the movable lead screw 14. The movable lead screw 14 is rotated so that it meshes with the threaded hole inside the movable plate 16, thereby allowing the movable plate 16 to move on the outer surface of the movable lead screw 14.

[0026] The hoisting unit includes a housing 3, which is located on top of the hydraulic telescopic column 2. Inside the housing 3 is a tilting seat 4, and inside the tilting seat 4 is a hydraulic telescopic column 2 movably connected. The top of the hydraulic telescopic column 2 movably connects to a traction arm 6, and the end of the traction arm 6 is provided with a tilting shaft 7. Inside the traction arm 6, on the upper part, is a traction rope assembly 8, and at the bottom end of the traction rope assembly 8 is a traction hook 9. By installing the hoisting unit and then activating the hydraulic telescopic column 2 5, the hydraulic telescopic column 2 5 pushes the traction arm 6 to tilt around the tilting shaft 7, thereby adjusting the angle of the traction arm 6. Furthermore, by activating the traction rope assembly 8, the angle of the traction hook 9 is adjusted, thus completing the hoisting of heavy items.

[0027] The side of the housing 3 is fixedly connected to the counterweight housing 10.

[0028] The base 1 is equipped with multiple casters at the bottom, each with a brake. The casters allow for flexible movement of the heavy single-cantilever crane head within the work area. When a fixed working position is required, the casters are locked by the brake to ensure the stability of the equipment during hoisting operations.

[0029] The outer surface of the traction boom 6 is marked with scale markings that correspond to the tilting angle of the traction boom 6. Operators can intuitively understand the current tilting angle of the traction boom 6 by observing the scale markings, so as to control the hoisting operation more accurately.

[0030] Rotary joint bearings are provided at the connection points of the hydraulic telescopic column 25 with the tilting seat 4 and the traction arm 6. The rotary joint bearings can provide flexible rotation space between the hydraulic telescopic column 25 with the tilting seat 4 and the traction arm 6 while ensuring the connection strength, thus ensuring the smoothness of the tilting action of the traction arm 6.

[0031] Working principle: When the device is working, the universal wheels with brakes at the bottom of the base 1 make it easy for the equipment to move flexibly in the work area, and the brakes lock when the working position is fixed. In the hoisting unit, after the hydraulic telescopic column 25 is started, it pushes the traction arm 6 to rotate around the tilting shaft 7. The traction hook 9 is adjusted by the traction rope assembly 8 to complete the hoisting of heavy items. The rotary joint bearing at the connection between the hydraulic telescopic column 25, the tilting seat 4, and the traction arm 6 ensures smooth rotation. The scale markings on the outer surface of the traction arm 6 assist the operator in accurately controlling the hoisting operation. In terms of the counterweight unit, when it is necessary to hoist heavy objects, a counterweight is hung at the bottom of the configuration hook 17 to improve stability. When the weight of the hoisted item increases, the motor 11 is started. The motor 11 drives the transmission assembly 12 to rotate the moving screw 14. The moving screw 14 engages with the internal threaded hole of the moving plate 16, which drives the moving plate 16 and the counterweight to move within the counterweight housing 10 to change the force arm, further improving the stability of the hoisting structure. The configuration hook 17 passes through the through slot 13 to facilitate the movement of the counterweight by the moving plate 16. The side of the placement housing 3 is fixedly connected to the counterweight housing 10. All parts work together to achieve stable hoisting of heavy items.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A heavy-duty single cantilever machine head, comprising a base (1) and a hydraulic telescopic column (2), characterized in that: The hydraulic telescopic column (2) is installed inside the base (1). A suspension structure is provided above the base (1). The suspension structure includes a hoisting unit and a counterweight unit. The hoisting unit is installed above the base (1), and the counterweight unit is installed above the base (1). The counterweight unit includes a counterweight housing (10), which is located above the base (1). A motor (11) is provided on the side of the counterweight housing (10). The output shaft of the motor (11) is connected to a transmission assembly (12). A through slot (13) is provided inside the counterweight housing (10). A movable lead screw (14) is connected to the other end of the transmission assembly (12). A slide rod (15) is provided inside the counterweight housing (10). A movable plate (16) is movably connected to the outer surface of the movable lead screw (14). A configuration hook (17) is provided at the bottom of the movable plate (16).

2. The heavy-duty single cantilever machine head according to claim 1, characterized in that: The configuration hook (17) passes through the through groove (13).

3. The heavy-duty single cantilever machine head according to claim 1, characterized in that: The movable plate (16) has a threaded hole inside, and the type of the threaded hole is compatible with the movable lead screw (14).

4. The heavy-duty single cantilever machine head according to claim 1, characterized in that: The hoisting unit includes a placement housing (3), which is located on top of the first hydraulic telescopic column (2). Inside the placement housing (3) is a flipping seat (4), and inside the flipping seat (4) is a second hydraulic telescopic column (5). The top of the second hydraulic telescopic column (5) is movably connected to a traction arm (6). At the end of the traction arm (6) is a flipping shaft (7). Inside the traction arm (6) is a traction rope assembly (8), and at the bottom of the traction rope assembly (8) is a traction hook (9).

5. A heavy-duty single cantilever machine head according to claim 4, characterized in that: The side of the placement housing (3) is fixedly connected to the counterweight housing (10).

6. A heavy-duty single cantilever machine head according to claim 1, characterized in that: The base (1) is provided with a number of casters at its bottom, and the casters are equipped with brakes.

7. A heavy-duty single cantilever machine head according to claim 4, characterized in that: The outer surface of the traction arm (6) is provided with scale markings, which correspond to the rotation angle of the traction arm (6).

8. A heavy-duty single cantilever machine head according to claim 4, characterized in that: The hydraulic telescopic column 2 (5) is equipped with a rotary joint bearing at the connection between the flipping seat (4) and the traction arm (6). The rotary joint bearing can ensure the connection strength.

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