A distance-limited buffer type shaft platform pulley

Abstract

The application relates to a limited-distance buffering type vertical shaft platform pulley. The limited-distance buffering type vertical shaft platform pulley comprises a fixing plate used for being connected with a grouting platform, a clamping plate fixedly installed on the fixing plate, a wheel shaft arranged on the clamping plate, and rubber wheels installed on the part of the wheel shaft between the inner walls of the clamping plate through bearings. Damping shock absorbers are arranged at the two ends of the wheel shaft on the two sides of the clamping plate. The application can effectively buffer the influence of construction vibration on the platform, limit the platform deviation amplitude, avoid direct rigid collision between the platform and the shaft wall, reduce the frictional resistance in the platform climbing process, and improve the construction safety and stability.

Description

Technical Field

[0001] This application relates to the field of water conservancy and hydropower engineering technology, and in particular to a limited-distance buffer type vertical shaft platform pulley. Background Technology

[0002] In water conservancy and hydropower projects, reinforced concrete shafts require grouting to improve overall structural safety. Conventional construction methods use a lifting system to drive the grouting platform. However, shafts also need to accommodate ventilation, and their internal spatial layout affects the stability of the platform. Furthermore, vibrations generated during grouting and drilling can cause the grouting platform to sway. Uneven lifting by the lifting system can also cause platform displacement, leading to rigid collisions or continuous friction between the platform and the concrete shaft wall. This not only damages the platform structure and affects construction safety but may also damage the concrete structure of the shaft wall, reducing construction quality and creating numerous safety hazards for the project.

[0003] There is a lack of efficient protective devices specifically designed for this problem in the existing technology. Therefore, there is an urgent need for a reliable structure that can achieve a limited-distance buffer type of shaft platform pulley. Summary of the Invention

[0004] To address or partially address the problems existing in related technologies, this application provides a limited-distance buffer type vertical shaft platform pulley, which can effectively buffer the impact of construction vibration on the platform, limit the platform's offset amplitude, avoid direct rigid collision between the platform and the shaft wall, and reduce the frictional resistance during the platform's climbing process, thereby improving construction safety and stability.

[0005] This application provides a limited-distance buffer type vertical shaft platform pulley, including a fixed plate 6 for connecting with a grouting platform, a clamping plate 2 fixedly installed on the fixed plate 6, a wheel axle 3 provided on the clamping plate 2, a rubber wheel 1 installed on the part of the wheel axle 3 between the inner walls of the clamping plate 2 through a bearing, and damping shock absorbers 7 provided at both ends of the wheel axle 3 on both sides of the clamping plate 2.

[0006] Optionally, in some embodiments, the inner side of the clamping plate 2 is provided with an inclined rib plate 4 and a longitudinal rib plate 5, and the bottom of the longitudinal rib plate 5 is connected to the fixing plate 6.

[0007] Optionally, in some embodiments, the damping shock absorber 7 is an adjustable hydraulic shock absorber, with one end of the damping shock absorber 7 fixed to the clamping plate 2 and the other end abutting against the wheel axle 3.

[0008] The technical solution provided in this application may include the following beneficial effects: This application effectively buffers the impact force generated by construction vibration by installing damping shock absorbers on both sides of the axle, while limiting the horizontal movement distance of the axle to prevent the grouting platform from rigidly colliding with the well wall due to excessive offset, thus protecting the integrity of the platform and well wall structure. The use of elastic wear-resistant rubber wheels in contact with the well wall converts the sliding friction during platform climbing into rolling friction, significantly reducing frictional resistance, minimizing component wear, and improving the smoothness and safety of platform climbing. The device has a simple structure, is detachably connected to the grouting platform via a fixing plate, and is easy to install and maintain. The support frame adopts a triangular stable structure with strong load-bearing capacity, making it suitable for collision prevention scenarios during climbing in various sizes of vertical shafts, demonstrating strong versatility. The adjustable damping shock absorber design allows the device to adapt to vibration intensities under different construction conditions, improving the applicability and effectiveness of the device.

[0009] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0010] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0011] Figure 1 This is a top view schematic diagram of the limited-distance buffer type vertical shaft platform pulley shown in the embodiments of this application; Figure 2 This is a front view structural schematic diagram of a distance-limited buffer type vertical shaft platform pulley shown in an embodiment of this application.

[0012] Figure label: 1-Rubber wheel, 2-Clamping plate, 3-Wheel axle, 4-Inclined rib, 5-Longitudinal rib, 6-Fixed plate, 7-Damping shock absorber. Detailed Implementation

[0013] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0014] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0015] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0016] To address the aforementioned issues, this application provides a limited-distance buffer type vertical shaft platform pulley, which can effectively buffer the impact of construction vibrations on the platform, limit the platform's offset, avoid direct rigid collision between the platform and the shaft wall, and reduce frictional resistance during the platform's ascent, thereby improving construction safety and stability.

[0017] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0018] See Figure 1-2 The aforementioned limited-distance buffer type shaft platform pulley includes a fixed plate 6 for connecting to the grouting platform. A clamping plate 2 is fixedly installed on the fixed plate 6. An axle 3 is provided on the clamping plate 2. A rubber wheel 1 is installed on the part of the axle 3 between the inner walls of the clamping plate 2 through a bearing. Damping shock absorbers 7 are provided at both ends of the axle 3 on both sides of the clamping plate 2. The rubber wheel 1 is made of elastic and wear-resistant material. Its outer circular surface contacts the shaft wall and achieves rolling friction when the grouting platform climbs. The outer diameter of the rubber wheel 1 is designed according to the safety distance between the shaft wall and the grouting platform to ensure that the rubber wheel contacts the shaft wall before other parts of the platform when the platform deviates. Multiple bolt holes are opened on the fixed plate 6, and it is detachably connected to the grouting platform through high-strength bolts for easy installation and maintenance.

[0019] In some embodiments, the inner side of the clamping plate 2 is provided with inclined ribs 4 and longitudinal ribs 5. The bottom of the longitudinal ribs 5 is connected to the fixed plate 6. The inclined ribs 4 and longitudinal ribs 5 are cross-welded to form a triangular stable structure, thereby improving the overall load-bearing capacity of the device.

[0020] In some embodiments, the damping shock absorber 7 is an adjustable hydraulic shock absorber. One end of the damping shock absorber 7 is fixed to the clamping plate 2, and the other end abuts against the wheel axle 3, so that the wheel axle 3 can move horizontally within a limited distance. The damping coefficient can be adjusted according to the construction vibration intensity to adapt to different working conditions.

[0021] The working process of this application: The rubber wheel 1 is made of polyurethane elastic wear-resistant material and is mounted on the wheel axle 3 via a deep groove ball bearing, ensuring flexible rotation of the rubber wheel 1. The two ends of the wheel axle 3 are limited by clamping plates 2, which are made of steel plate and are fixedly connected to the inclined ribs 4 and longitudinal ribs 5 by welding. The ribs 4 and longitudinal ribs 5 are made of Q235 steel plate and are cross-welded to form a triangular stable support frame, improving the overall rigidity and load-bearing capacity of the device. The bottom of the support frame is welded to the fixing plate 6, which has four evenly distributed bolt holes 8. During construction, the fixing plate 6 is connected to the grouting platform using M24 high-strength bolts, enabling detachable installation of the device and facilitating later maintenance and component replacement. Adjustable hydraulic damping shock absorbers 7 are symmetrically arranged on both sides of the wheel axle 3. The cylinder end of the damping shock absorber 7 is welded to the clamping plate 2, and the piston rod end abuts against the wheel axle 3. Through the elastic expansion and contraction characteristics of the damping shock absorber 7, the wheel axle 3 can move horizontally within a range of ±50mm, which can both buffer vibration impact and limit the platform's offset.

[0022] During construction, this device is symmetrically arranged at the four corners of the grouting platform, ensuring that the outer surface of the rubber wheel 1 makes light contact with the shaft wall. When the grouting platform shifts due to construction vibration or uneven lifting, the shaft wall exerts lateral pressure on the rubber wheel 1. The rubber wheel 1 transmits this pressure to the damping shock absorber 7 through the wheel axle 3. The damping shock absorber 7 dissipates the impact energy through its own damping effect, achieving a buffering effect. At the same time, the extension and retraction stroke of the damping shock absorber 7 limits the movement distance of the wheel axle 3, preventing excessive platform shifting. When the grouting platform climbs upward, the rubber wheel 1 rolls along the shaft wall, significantly reducing frictional resistance and ensuring a smooth platform climb.

[0023] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely 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 "include," "contain," or any other variations 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.

[0024] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0025] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A limited-distance buffer type vertical shaft platform pulley, characterized in that: The aforementioned limited-distance buffer type shaft platform pulley includes a fixed plate (6) for connecting with the grouting platform. A clamping plate (2) is fixedly installed on the fixed plate (6). A wheel axle (3) is provided on the clamping plate (2). A rubber wheel (1) is installed on the part of the wheel axle (3) between the inner walls of the clamping plate (2) through a bearing. Damping shock absorbers (7) are provided at both ends of the wheel axle (3) on both sides of the clamping plate (2).

2. The limited-distance buffer type vertical shaft platform pulley according to claim 1, characterized in that: The inner side of the clamp (2) is provided with an inclined rib (4) and a longitudinal rib (5), and the bottom of the longitudinal rib (5) is connected to the fixing plate (6).

3. The limited-distance buffer type vertical shaft platform pulley according to claim 1 or 2, characterized in that: The damping shock absorber (7) is an adjustable hydraulic shock absorber. One end of the damping shock absorber (7) is fixed to the clamp plate (2), and the other end abuts against the wheel axle (3).

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