Rotary platform of tower crane

Abstract

The utility model relates to the technical field of cranes, and discloses a rotary platform of a tower crane. The tower crane rotation platform comprises a lubricator for adding lubricating oil to a fixed gear, the lubricator comprises an oil storage container, a coating wheel, a supporting shaft and an oil conveying pipe, and the oil storage container, the coating wheel and the oil conveying pipe are arranged, so that the lubricating oil can be automatically and uniformly added to the fixed gear; the problems of nonuniformity and omission of manual lubrication are avoided, the lubrication efficiency is remarkably improved, abrasion between the driving gear and the fixed gear can be effectively reduced through regular and uniform lubrication, the occurrence rate of abnormal sound and faults is reduced, and therefore the service life of the gear is prolonged, and the shutdown maintenance time and cost are reduced.

Description

Technical Field

[0001] This application relates to the field of crane technology, for example to a tower crane slewing platform. Background Technology

[0002] The descriptions in this section are provided only as background information relating to this disclosure and do not constitute prior art.

[0003] Tower cranes are essential equipment in modern construction, and their slewing platform is one of their core components. Key components of the slewing platform include the slewing support bearing, stationary gear, drive motor, and drive gear. Regular lubrication and maintenance of the slewing support bearing is a mandatory item in tower crane maintenance manuals, typically performed by applying grease to ensure proper operation and extend its service life.

[0004] However, lubrication and maintenance between the drive gear and the stationary gear are often neglected. Because this part has relatively low lubrication requirements and lacks specialized equipment for adding lubricant to the stationary gear, many operators only lubricate it during initial assembly, neglecting regular maintenance afterwards. This lack of maintenance can easily lead to abnormal noises, gear wear, and other malfunctions between the drive and stationary gears. In severe cases, it can even cause the crane to stop for inspection, affecting construction progress and safety. Summary of the Invention

[0005] This application provides a tower crane slewing platform that, by setting up an oil storage container, a coating wheel, and an oil delivery pipe, can automatically and evenly add lubricating oil to the fixed gears, avoiding the unevenness and omissions of manual lubrication, significantly improving lubrication efficiency. Regular and even lubrication can effectively reduce wear between the drive gear and the fixed gear, reduce the incidence of abnormal noise and failure, thereby extending the service life of the gears and reducing downtime and maintenance time and costs.

[0006] A tower crane slewing platform includes: a lubricator for adding lubricating oil to a fixed gear, the lubricator including: an oil reservoir, a coating wheel, a support shaft, and an oil delivery pipe;

[0007] An oil storage container that can hold lubricating oil;

[0008] The coating wheel meshes with or adheres to the fixed gear;

[0009] The support shaft is rotatably connected to the coating wheel at the bottom and to the oil storage container at the top;

[0010] The oil delivery pipe is connected at one end to the oil storage container and at the other end to the coating wheel, where lubricating oil is added.

[0011] By setting up an oil storage container, coating wheel, and oil delivery pipe, lubricating oil can be added to the stationary gear automatically and evenly, avoiding the unevenness and omissions of manual lubrication. This significantly improves lubrication efficiency. Regular and even lubrication can effectively reduce wear between the drive gear and the stationary gear, reduce abnormal noise and the incidence of failure, thereby extending the service life of the gears and reducing downtime and maintenance time and costs.

[0012] In some embodiments, the support shaft is a hollow tube, the internal hollow tube of the support shaft forms an oil delivery pipe, the upper end of the support shaft is connected to an oil storage container, and the lower part is provided with an oil outlet.

[0013] In some embodiments, the coating wheel is provided with a plurality of guide holes, one end of which is connected to the oil outlet hole, and the other end extends radially along the coating wheel to the surface of the coating wheel.

[0014] In some embodiments, a valve is provided on the support shaft, and the oil supply pipe between the valve and the oil outlet forms a temporary oil storage area.

[0015] The valve and guide hole design on the support shaft allows for precise control of the amount of lubricating oil added, avoiding waste of lubricating oil and ensuring that all parts of the gear are adequately lubricated.

[0016] In some embodiments, the support shaft is slidably engaged with the oil storage container, and the sliding direction is the direction of the axis of the support shaft. The oil storage container is provided with a locking device for locking the position of the support shaft.

[0017] In some embodiments, the locking device is a hook, with the upper end of the hook connected to an oil storage container part and the lower part of the hook capable of suspending a valve handle.

[0018] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0019] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0020] Figure 1 This is a three-dimensional schematic diagram of a tower crane slewing platform structure provided in an embodiment of this disclosure;

[0021] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle;

[0022] Figure 3 This is a three-dimensional structural schematic diagram of another tower crane slewing platform provided in an embodiment of this disclosure;

[0023] Figure 4 yes Figure 3 Enlarged view of a portion of point B in the middle;

[0024] Figure 5 This is a front view structural schematic diagram of a tower crane slewing platform provided in an embodiment of this disclosure;

[0025] Figure 6 This is a schematic diagram of the coating wheel structure provided in an embodiment of this disclosure;

[0026] Figure 7 This is a cross-sectional schematic diagram of the coating wheel at the guide hole provided in an embodiment of this disclosure.

[0027] Figure label:

[0028] 1. Lubricator; 2. Drive motor; 3. Drive gear; 4. Upper support; 5. Lower support; 6. Fixed gear; 11. Oil storage container; 12. Oil inlet; 13. Hook; 14. Valve; 15. Support shaft; 16. Coating wheel; 17. Guide hole. Detailed Implementation

[0029] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0030] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0031] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0032] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0033] Unless otherwise stated, the term "multiple" means two or more.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0035] The rotary platform includes: an upper support 4, a lower support 5, a slewing bearing, a fixed gear 6, a drive motor 2, and a drive gear 3. The upper support 4 is located above the lower support 5, and the lower support 5 is connected to the upper support 4 through the slewing bearing. The drive motor 2 is fixedly mounted on the upper support 4, the fixed gear 6 is fixedly mounted on the lower support 5, and the drive gear 3 is mounted on the output shaft of the drive motor 2. The drive gear 3 meshes with the fixed gear 6.

[0036] Combination Figure 1-7 As shown, this embodiment of the present disclosure provides a tower crane slewing platform, including: a lubricator 1 for adding lubricating oil to a fixed gear 6, the lubricator 1 including: an oil storage container 11, a coating wheel 16, a support shaft 15, and an oil delivery pipe.

[0037] The oil storage container 11 can hold lubricating oil. The oil storage container 11 can be a square sealed box, a cylindrical or polygonal sealed cavity, and this application does not limit it. The oil storage container 11 has an oil inlet 12 at the top, and the oil inlet 12 is provided with a cover. The oil storage container 11 is fixedly mounted on the upper support 4.

[0038] The coating wheel 16 meshes with or is attached to the fixed gear 6; the coating wheel 16 is made of an easily absorbent material, such as a high-density sponge wheel or a nylon wheel.

[0039] The support shaft 15 is rotatably connected to the coating wheel 16 at the bottom and connected to the oil storage container 11 at the top; the support shaft 15 is a hollow round tube.

[0040] An oil delivery pipe is connected at one end to an oil storage container 11, and the other end is positioned near the coating wheel 16 to add lubricating oil. The oil delivery pipe can be configured separately or constituted by a hollow structure of the support shaft 15. This application illustrates an example of an integral structure.

[0041] By setting up an oil storage container 11, a coating wheel 16, and an oil delivery pipe, lubricating oil can be automatically and evenly added to the fixed gear 6, avoiding the unevenness and omissions of manual lubrication, significantly improving lubrication efficiency. Regular and even lubrication can effectively reduce wear between the drive gear 3 and the fixed gear 6, reduce the occurrence of abnormal noise and failures, thereby extending the service life of the gears and reducing downtime and maintenance time and costs.

[0042] In some embodiments, the support shaft 15 is a hollow tube, and the internal hollow tube of the support shaft 15 forms an oil delivery pipe. The upper end of the support shaft 15 is connected to the oil storage container 11, and the lower part is provided with an oil outlet. The structure is simpler and maintenance-free.

[0043] In some embodiments, the coating wheel 16 is provided with a plurality of guide holes 17. One end of the guide hole 17 is connected to the oil outlet hole, and the other end extends radially along the coating wheel 16 to the surface of the coating wheel 16. The coating wheel 16 rotates continuously, and the centrifugal force generated or the wetting and adsorption properties of the coating wheel 16 itself cause the lubricating oil to reach the surface of the coating wheel 16, and then be coated onto the fixed gear 6 from the meshing surface. The guide holes 17 can accelerate the flow of lubricating oil and improve the lubrication speed.

[0044] In some embodiments, the support shaft 15 is provided with a valve 14, and the inside of the oil supply pipe between the valve 14 and the oil outlet forms a temporary oil storage area. When the valve 14 is opened, the lubricating oil can quickly fill the temporary oil storage area. When the volume of the temporary oil storage area meets the requirements for one lubrication application, the valve 14 can be closed to save lubricating oil.

[0045] The valve 14 and guide hole 17 on the support shaft 15 allow for precise control of the amount of lubricating oil added, preventing waste of lubricating oil and ensuring that all parts of the gear are adequately lubricated.

[0046] In some embodiments, the support shaft 15 is slidably engaged with the oil storage container 11, and the sliding direction is the direction of the axis of the support shaft 15. The oil storage container 11 is provided with a locking device for locking the position of the support shaft 15.

[0047] If the coating wheel 16 continues to mesh with the fixed gear 6 after lubrication, it will increase the wear on its interior or surface. If the coating wheel 16 is no longer meshed with the fixed gear 6 by sliding up and down, its service life can be greatly extended.

[0048] In some embodiments, the locking device is a hook 13, with the upper end of the hook 13 connected to the oil storage container 11 and the lower part of the hook 13 capable of suspending the valve 14 handle. When the valve 14 is closed, it will be horizontally positioned, at which point it can be hooked onto the hook 13 to complete the positioning. The middle part of the hook 13 has a certain degree of elasticity and can be bent to allow the valve 14 handle to move upward to the hook 13.

[0049] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A slewing platform for a tower crane, characterized in that The application relates to a lubricator for adding lubricating oil to a fixed gear, which comprises: a lubricating oil storage container; a coating wheel engaged with the fixed gear; a support shaft, the lower part of which is rotationally connected with the coating wheel, and the upper part of which is connected with the lubricating oil storage container; a lubricating oil delivery pipe, one end of which is connected with the lubricating oil storage container, and the other end of which is arranged close to the coating wheel and adds lubricating oil to the coating wheel. The support shaft is a hollow pipe, the internal hollow pipe of the support shaft constitutes the lubricating oil delivery pipe, the upper end of the support shaft is communicated with the lubricating oil storage container, and the lower part is provided with an oil outlet hole.

2. A tower crane slewing platform according to claim 1, characterised in that A plurality of flow guide holes are arranged on the coating wheel, one end of each of the flow guide holes is communicated with the oil outlet hole, and the other end of each of the flow guide holes extends to the surface of the coating wheel in the radial direction of the coating wheel.

3. A tower crane slewing platform according to claim 2, characterised in that A valve is arranged on the support shaft, and the internal part of the lubricating oil delivery pipe between the valve and the oil outlet hole constitutes a temporary lubricating oil storage area.

4. A tower crane turntable platform according to claim 2 or 3, characterised in that, The support shaft is in sliding fit with the lubricating oil storage container, the sliding direction is the direction of the axis of the support shaft, and the lubricating oil storage container is provided with a locking device for locking the position of the support shaft.

5. A tower crane slewing platform according to claim 4, characterised in that The locking device is a hook, the upper end of the hook is connected with the lubricating oil storage container, and the lower part of the hook can hang the handle of the valve.

6. A tower crane turntable platform according to claim 5, characterised in that ​

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