Tower crane with auxiliary lead-in device

Abstract

The utility model provides a tower crane with supplementary introduction device, include: tower body, its lower part is provided with the entrance, tower crane base is connected in the bottom of tower body, is equipped with the guide piece that extends to the entrance direction on it, supplementary introduction device is connected with tower body rotation, include: support piece, is equipped with connecting piece on it, winding mechanism is installed on support piece through connecting piece, is connected with the towrope on it, guide mechanism, support piece and guide mechanism, wherein, towrope passes through guide mechanism and extends downward, is used for connecting the standard knot on ground, through the operation winding mechanism, can tighten towrope, can lift standard knot to guide piece, and can be pushed into the inside of tower body through the entrance. The utility model improves the safety and efficiency of the operation of adding knot, the whole process is smooth, controllable, significantly shortens the operation time of adding knot, improves the overall construction efficiency. The manpower allocation is optimized, and the labor intensity is reduced. The precision and stability of the introduction process are guaranteed. The durability of equipment is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a tower crane with an auxiliary import device. Background Technology

[0002] Tower cranes, as the core lifting equipment on construction sites, need to increase in height as the building rises. This process is mainly achieved by adding new "standard sections" to the tower. Therefore, the installation efficiency and safety of the standard sections directly affect the progress and cost of the entire construction project.

[0003] Among existing methods for adding sections, the most common is to utilize the lifting mechanism at the top of the tower crane and its own boom. Specifically, the boom is used to lift the standard section from the ground, and then, through complex operations, the standard section is roughly aligned with the entrance at the bottom of the tower. Finally, operators, with manual assistance, push it into the tower. However, this method has significant limitations: First, because there is a blind spot between the working range of the tower crane boom and the bottom of the tower, precise positioning is difficult during the hoisting process. Multiple workers are often required on the ground to assist in the adjustment by pulling on guy ropes, which is difficult to coordinate and poses a high safety risk. Second, accurately pushing the heavy standard section into the tower entrance is an extremely time-consuming and labor-intensive task, which is not only physically demanding but also prone to damage to the standard section or the tower structure due to impacts. Utility Model Content

[0004] The purpose of this invention is to provide a tower crane with an auxiliary introduction device, which has a lifting function and solves the problem of rapid addition of tower sections.

[0005] To achieve the aforementioned objectives of this utility model, the technical solution adopted by this utility model is as follows: A tower crane with an auxiliary import device includes: The tower has an entrance at its lower part; The tower crane base is connected to the bottom of the tower body; it is equipped with guides extending towards the entrance. The auxiliary introduction device, which is rotatably connected to the tower body, includes: A support component, on which a connector is provided; The winding mechanism is mounted on the support via a connector; a traction rope is connected to it. Guiding mechanism, supporting components and guiding mechanism; The traction rope passes through the guide mechanism and extends downwards to connect to the standard section on the ground. By operating the winding mechanism to tighten the traction rope, the standard section can be lifted onto the guide and pushed into the tower body through the entrance.

[0006] In some embodiments, the guiding mechanism includes a protective housing and a fixed pulley assembly disposed within the protective housing, with the traction rope passing over the fixed pulley assembly.

[0007] In some embodiments, the support member is a support rod, the top of which is connected to the bottom wall of the protective shell.

[0008] In some embodiments, the support member is rotatably connected to the crossbeam of the tower body via a bearing; the inner ring of the bearing is connected to the support member, and the outer ring is connected to the crossbeam of the tower body.

[0009] In some embodiments, the connector includes a pair of spaced-apart slotted plates, the ends of which are connected to a support; the winding mechanism includes: The horizontal axis is rotatably mounted in the groove of a pair of slotted plates; The handwheel is sleeved on the horizontal shaft and located on the outside of any slotted plate; A reel is fitted onto a horizontal shaft and positioned between a pair of slotted plates; one end of the traction rope is wound and fixed onto the reel.

[0010] In some embodiments, a baffle is provided at the slot of the slotted plate.

[0011] In some embodiments, the guide is a guide rail plate coated with a lubricating medium, and the standard section can move along the guide rail plate.

[0012] Compared with existing technologies, the beneficial effects of this utility model in practical use are as follows: It improves the safety and efficiency of section-addition operations, ensuring a smooth and controllable process, significantly shortening the section-addition operation time, and improving overall construction efficiency. It optimizes manpower allocation and reduces labor intensity. It ensures the accuracy and stability of the introduction process. It enhances the durability and reliability of the equipment. It extends the service life of the device and reduces maintenance needs. It achieves labor-saving operation. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] Figure 1 A partial structural schematic diagram of a tower crane with an auxiliary introduction device provided for an embodiment of this application; Figure 2 A schematic diagram of the structure of the auxiliary introduction device for lifting the standard section provided in the embodiments of this application; Figure 3 This is a schematic diagram of the auxiliary introduction device provided in an embodiment of this application.

[0015] The attached figures are labeled as follows: 100. Standard section; 1. Tower body; 11. Entrance; 2. Tower crane base; 21. Guide components; 4. Auxiliary feeding device; 41. Support component; 411. Slotted plate; 412. Baffle; 42. Winding mechanism; 422. Horizontal shaft; 423. Handwheel; 424. Thread pulley; 43. Guide mechanism; 431. Protective shell; 432. Fixed pulley block; 44. Traction rope; 5. Bearings; 6. Support pole. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0017] Please see Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a partial structural diagram of a tower crane with an auxiliary introduction device provided in an embodiment of this application. Figure 2 This is a schematic diagram of the structure of the auxiliary introduction device for lifting the standard section 100 provided in the embodiments of this application. Figure 3 This is a schematic diagram of the auxiliary introduction device provided in an embodiment of this application. The tower crane with the auxiliary introduction device includes: a tower body 1, a tower crane base 2, and an auxiliary introduction device 4. An entrance 11 is provided at the lower part of the tower body 1. The tower crane base 2 is connected to the bottom end of the tower body 1, and a guide 21 extending toward the entrance 11 is provided on the tower crane base 2.

[0018] The auxiliary introduction device 4 is rotatably connected to the tower body 1 and includes: a support member 41, a winding mechanism 42, and a guide mechanism 43. The support member 41 is equipped with a connector 411. The winding mechanism 42 is mounted on the support member 41 via the connector 411, and a traction rope 44 is connected to the winding mechanism 42. The guide mechanism 43 is connected to the support member 41.

[0019] In some examples, the support member 41 can be rotatably connected to the crossbeam of the tower body 1 via a bearing 5. The inner ring of the bearing 5 is connected to the support member 41, and the outer ring is connected to the crossbeam of the tower body 1. Connecting the support member 41 to the crossbeam of the tower body 1 via the bearing allows the entire auxiliary introduction device 2 to rotate flexibly around the bearing axis. When it is necessary to lift the standard section at different angles, the operator can easily rotate the device to align it with the target, thus saving the process of moving the entire auxiliary introduction device 2 or re-fixing the device. This allows the auxiliary introduction device 2 to flexibly adjust its working position, facilitating docking and lifting of standard sections at different locations, enhancing ease of use.

[0020] The traction rope 44 passes through the guide mechanism 43 and extends downward to connect the standard section 100 on the ground. By operating the winding mechanism 42 to tighten the traction rope 44, the standard section 100 can be lifted onto the guide member 21 and pushed into the tower body 1 through the inlet 11.

[0021] It should be noted that the standard section 100 is an important component of a tower crane, typically welded from steel, forming the main support structure of the tower crane. It bears the core load, allows for height adjustment, ensures structural rigidity, and provides connection and transition functions. Its performance directly affects the tower crane's lifting capacity, wind resistance rating, and service life.

[0022] The embodiments of this application utilize an auxiliary introduction device located on the outside of the tower body and rotatably connected to it. By operating the winding mechanism to tighten the traction rope, the standard section on the ground can be vertically lifted onto the guide on the tower crane base. Subsequently, the operator can safely and effortlessly push the standard section horizontally into the tower body along the guide extending to the entrance, preparing for subsequent top lifting and installation. This forms an efficient and low-risk section addition process, reducing the risks and labor intensity of high-altitude operations.

[0023] The safety and efficiency of the section addition operation have been improved: Through a specially designed auxiliary introduction device 2 that rotates and connects to the tower body 1, the lifting and initial alignment of standard sections can be completed on the ground, completely avoiding the safety risks associated with traditional methods that rely on blind spot hoisting and high-altitude adjustments by the tower crane. The entire process is smooth and controllable, significantly shortening the section addition operation time and improving overall construction efficiency.

[0024] The manpower allocation has been optimized and the labor intensity has been reduced: the heavy manual pulling and high-altitude adjustment work has been transformed into a simple shaking and winding mechanism 42 to tighten the traction rope 44 and propel it horizontally along the guide rail, which greatly reduces the number of operators and the physical requirements, and saves labor costs.

[0025] Please continue reading. Figures 1 to 3 In some embodiments, the guide mechanism 43 includes a protective shell 431 and a fixed pulley assembly 432 disposed within the protective shell 431, with the traction rope 44 passing around the fixed pulley assembly 432. By providing the protective shell 431, the fixed pulley assembly 432 is enclosed within it, preventing external dust and debris from entering the pulley grooves or interfering with the traction rope 44, ensuring that the traction rope 44 always runs smoothly along the predetermined path. Simultaneously, the fixed pulley assembly 432 changes the direction of force on the traction rope 44, making the operating force more ergonomic, reducing rope wear, and extending the service life of the traction rope. Furthermore, the protective shell 431 is connected to the support member 41, increasing the connection area and ensuring connection strength.

[0026] In some examples, the support member 41 can be a support rod, with its top end connected to the bottom wall of the protective shell 41. As a rigid member, the support rod reliably connects one end to the bottom wall of the protective shell 41, forming a stable support frame that can effectively resist various torques and vibrations generated when the traction rope 44 is working, thereby ensuring the stability of the entire guiding mechanism and the working path of the traction rope.

[0027] Please see Figure 3 In some embodiments, the support member 41 and the protective shell 431 are further connected by a diagonal rod 6. Specifically, the lower end of the diagonal rod is connected to the left side wall of the support member 41, and the upper end is connected to the bottom wall of the protective shell 431. In this way, the support member 41, the protective shell 431, and the diagonal rod 6 form a stable triangular structure, which enhances the stability of the overall structure, effectively suppresses the deformation or vibration that may occur in each component under stress, and thus improves the load-bearing capacity of the auxiliary introduction device.

[0028] In some embodiments, the connector may include a pair of spaced-apart slotted plates 411, the ends of which are connected to the support member 41. The winding mechanism 42 includes a horizontal shaft 422, a handwheel 423, and a reel 424. The horizontal shaft 422 is rotatably mounted within the slots of the pair of slotted plates 411. The handwheel 423 is sleeved on the horizontal shaft 422 and located outside either slotted plate 411. The reel 424 is sleeved on the horizontal shaft 422 and located between the pair of slotted plates 411. One end of the traction rope 44 is wound and fixed to the reel 424. The end of the horizontal shaft 422 away from the handwheel 423 is locked by a pin or bolt.

[0029] In some examples, the slot of the slotted plate 411 can face upwards or towards the side away from the support 41. For example, the shape of the slot on the slotted plate 411 can be U-shaped.

[0030] In this way, the horizontal shaft 422 is reliably constrained within the slots of a pair of slotted plates 411, providing a stable base for rotation. By rotating the handwheel 423, the horizontal shaft 422 and the reel 424 are driven to rotate synchronously, efficiently converting the operator's rotational motion into the linear winding motion of the traction rope 44. The reel 424, located between the slotted plates 411, enables the orderly winding and unwinding of the traction rope 44.

[0031] Furthermore, a baffle 412 is provided at the slot opening of the slotted plate 411. By providing the baffle 412 at the slot opening of the slotted plate 411, a physical limit is added to both ends of the horizontal shaft, effectively preventing the risk of the horizontal shaft moving axially and slipping out of the slot due to vibration or uneven force during the winding and unwinding of the traction rope 44, ensuring the continuity of transmission, and thus enhancing the safety and reliability of the winding mechanism 42.

[0032] In some examples, the guide 21 is a guide rail plate coated with a lubricating medium, along which the standard section 100 can move. The guide rail plate provides a flat and robust path for the standard section to move. After the lubricating medium is coated on its surface, a lubricating film is formed between the bottom of the standard section and the guide rail plate, transforming the original dry friction into friction under lubrication, significantly reducing sliding resistance. This allows the operator to easily push the heavy standard section into the tower body 1, reducing the frictional resistance of the standard section moving on the guide, and making the pushing operation more effortless and smooth.

[0033] For example, the lubricating medium can be lubricating oil or grease, etc.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tower crane with an auxiliary introduction device, characterized in that... ,include: The tower body (1) has an entrance (11) at its lower part. The tower crane base (2) is connected to the bottom end of the tower body (1); It is provided with a guide (21) extending toward the entrance (11); The auxiliary introduction device (4), rotatably connected to the tower body (1), includes: Support member (41), on which a connector is provided; A winding mechanism (42) is mounted on the support (41) via the connector; a traction rope (44) is connected thereto. The guide mechanism (43) is connected to the support member (41); The traction rope (44) passes through the guide mechanism (43) and extends downward to connect the standard section (100) on the ground. By operating the winding mechanism (42) to tighten the traction rope (44), the standard section (100) can be lifted onto the guide (21) and pushed into the tower body (1) through the entrance (11).

2. The tower crane with auxiliary introduction device according to claim 1, characterized in that, The guiding mechanism (43) includes a protective shell (431) and a fixed pulley assembly (432) disposed within the protective shell (431), and the traction rope (44) passes around the fixed pulley assembly (432).

3. The tower crane with auxiliary introduction device according to claim 2, characterized in that, The support member (41) is a support rod, the top of which is connected to the bottom wall of the protective shell (431).

4. The tower crane with auxiliary introduction device according to claim 3, characterized in that, The support member (41) is rotatably connected to the crossbeam of the tower body (1) via a bearing (5); the inner ring of the bearing (5) is connected to the support member (41), and the outer ring is connected to the crossbeam of the tower body (1).

5. The tower crane with auxiliary introduction device according to claim 1, characterized in that, The connector includes a pair of spaced-apart slotted plates (411), the pair of slotted plates (411) being disposed on the support member (41); the winding mechanism (42) includes: The horizontal shaft (422) is rotatably mounted in the slots of the pair of slotted plates (411); The handwheel (423) is sleeved on the horizontal shaft (422) and located on the outside of any of the slotted plates (411); A spool (424) is fitted onto the horizontal shaft (422) and located between a pair of slotted plates (411); one end of the traction rope (44) is wound around the spool (424).

6. The tower crane with auxiliary introduction device according to claim 5, characterized in that, A baffle (412) is provided at the slot of the slotted plate (411).

7. The tower crane with an auxiliary introduction device according to claim 1, characterized in that, The guide (21) is a guide rail plate coated with a lubricating medium, and the standard section (100) can move along the guide rail plate.

Images