Novel vibroflotation main body structure

Abstract

The utility model discloses a novel vibroflotation main body structure which comprises a shell, two main shafts, bearings, bearing seats and a connecting assembly, the two main shafts are arranged in the shell, the two ends of the main shafts are sleeved with the bearings and fixedly connected with the bearing seats, eccentric blocks are arranged in the middles of the main shafts in a sleeved mode, and the two main shafts are connected through the connecting assembly. The connecting assembly comprises an inserting column and a splicing ring arranged outside the inserting column in a sleeving mode, the inserting column is inserted into an inserting groove formed in the bearing seat, the splicing ring is provided with a through groove in a penetrating mode and provided with a splicing strip, the splicing strip is inserted into a splicing groove formed in the bearing seat, and the end of the splicing strip is provided with a clamping groove clamped to the corner of the inserting column. Through double-main-shaft linkage and a multi-point bearing supporting structure, the rotating synchronism and supporting stability of the main shafts are effectively improved, main shaft bending and bearing abrasion are reduced, the bearing distribution of the vibration shell is enhanced, the vibroflotation efficiency is improved, and the overall service life is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of foundation treatment equipment, specifically relating to a novel vibratory compaction main structure. Background Technology

[0002] Vibro-compaction is a construction method commonly used for foundation reinforcement and improvement. Its basic principle involves inserting a vibro-compactor into the foundation, using high-speed vibration to loosen and compact the soil. If necessary, material is added into the borehole to further enhance the foundation's strength and stability. In vibro-compaction equipment, the vibro-compactor body is the core actuator, and its structural design directly affects vibration efficiency, stability, and equipment lifespan.

[0003] Currently, the common structure of vibratory compactors generally adopts a single main shaft with an eccentric block, with bearings located at both ends of the main shaft to support the high-speed rotation of the eccentric block. However, in actual construction, this structure has the following drawbacks: Firstly, due to the complex forces exerted on the main shaft during operation, especially during pile driving in deep foundations, the main shaft is prone to significant bending deformation, leading to uneven bearing stress and accelerated wear. Secondly, in existing structures, the stress points of the vibratory shell are relatively concentrated, failing to effectively distribute the load, resulting in localized damage to the shell and affecting the overall durability and operational stability of the structure. Furthermore, the main shaft often relies on single-end transmission, resulting in poor synchronization performance and a tendency for the upper and lower main shafts to rotate asynchronously, further reducing vibratory compaction efficiency. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a novel vibratory compaction main structure. This structure can enhance the support strength of the main shaft, reduce its bending degree, and lower the bearing wear rate through a reasonable bearing arrangement and a dual-main-shaft linkage structure. At the same time, it can disperse the stress points of the vibratory shell, thereby improving the overall service life of the equipment and the vibratory compaction operation effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A novel vibratory impact main structure includes a housing, inside which a main shaft is provided, and bearings are sleeved at both ends of the main shaft;

[0007] An eccentric block is fitted in the middle of the main shaft;

[0008] The number of spindles is set to two, and a connecting component is provided between the two spindles to connect the two spindles together.

[0009] The connecting assembly includes a plug-in post inserted into one end of the spindle, and a splicing ring is fitted onto the plug-in post.

[0010] Furthermore, bearing seats are fixedly connected to both ends of the main shaft, and the bearings are sleeved on the bearing seats.

[0011] Furthermore, one end of the bearing housing is provided with a plug-in groove, and the plug-in groove is configured as a regular polygon;

[0012] The plug is inserted into the plug slot.

[0013] Furthermore, a through groove is provided on the upper end face of the splicing ring, and the splicing ring is located between the two main shafts.

[0014] Furthermore, the upper end face of the bearing housing is provided with splicing grooves at equal intervals around the central axis of the bearing housing;

[0015] The top and bottom of the splicing ring are both fixedly connected with splicing strips.

[0016] Furthermore, one end of the splicing strip is provided with a locking groove, which engages with the corner of the plug-in post.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The structure adopts a dual-spindle structure, and the upper and lower spindles are connected together by a connecting component to achieve synchronous transmission between the spindles. Unlike the single-end drive of the spindle in the existing structure, this structure can effectively reduce the rotational lag problem caused by the lack of an independent power source in the lower spindle, improve vibration synchronization, thereby improving vibration efficiency and enhancing the transmission stability of vibration force in the entire axial range of the vibratory compactor.

[0019] Bearings are installed at both ends of the spindle and positioned and supported by bearing housings. The bearing housings are fixed by splicing grooves with equal spacing and splicing strips on the splicing rings, forming a multi-point support structure. Compared with the single-sided bearing support method in the prior art, this structure can effectively limit the bending deformation of the spindle during high-speed rotation, reduce axial movement, thereby reducing the wear rate of the bearings, extending their service life, and improving the problem of concentrated stress on the vibrating shell caused by spindle bending.

[0020] The bearing housing and the connecting assembly are positioned and connected by plug-in pins and plug-in slots, and mechanically limited by a locking structure, which realizes a high-strength assembly method for the spindle assembly. This structure can withstand strong impact and vibration loads during construction, prevent the connecting parts from loosening or misaligning, thereby improving the overall safety and stability of the equipment and reducing the frequency of maintenance.

[0021] The splicing ring adopts a through-slot structure design and is set between the two main shafts, which effectively improves the structural strength of the connection. While enhancing the rigidity of the main shaft connection, this structure also facilitates quick disassembly and maintenance, which is conducive to the high-frequency use of the equipment and efficient management of the construction site. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the main shaft of this utility model. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the main shaft of this utility model. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the structure of the connecting component of this utility model;

[0026] Figure 5 This is a schematic diagram of the splicing ring of this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Shell;

[0029] 2. Spindle; 21. Bearing; 22. Bearing housing; 221. Insertion groove; 222. Splicing groove;

[0030] 3. Eccentric block;

[0031] 4. Connecting components; 41. Insertion post; 42. Splicing ring; 421. Through groove; 422. Splicing strip; 4221. Locking slot. Detailed Implementation

[0032] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0033] See Figure 1-5A novel vibratory compaction main structure includes a shell 1, which is a hollow, cylindrical structure used to enclose internal components and bear the structural loads during vibratory compaction. A main shaft 2 is housed inside the shell 1, with bearings 21 fitted at both ends. The bearings 21 are connected to the inner wall of the shell 1 via bearing seats 22 for rotational support. An eccentric block 3, shaped like a block, is fitted in the middle of the main shaft 2 and is eccentrically positioned around the main shaft 2 to generate centrifugal vibration force when the main shaft 2 rotates. Two main shafts 2 are arranged vertically. The two spindles 2 are respectively installed in the upper and lower sections of the housing 1. A connecting component 4 is provided between the two spindles 2 to connect the two spindles 2 together to achieve synchronous rotation. The connecting component 4 includes a plug-in post 41 inserted into one end of the spindle 2. The plug-in post 41 is a cylindrical or polygonal column structure. A splicing ring 42 is sleeved on the plug-in post 41. The splicing ring 42 is used to strengthen the connection stability and assist in limiting and positioning at the axial splicing point of the two spindles 2, thereby improving the overall operational stability of the vibratory impact structure and reducing the risk of force displacement and bending of the spindle during high-speed rotation.

[0034] See Figure 1-3 Both ends of the main shaft 2 are fixedly connected to bearing seats 22. The bearing seats 22 are sleeve-shaped components, and their inner cavity structure is precisely matched with the outer diameter of the bearing 21 to realize the limited installation and working stability of the bearing 21. The bearing 21 is sleeved on the bearing seat 22. The bearing 21 is a deep groove ball bearing or roller bearing structure, which can withstand the radial and part of the axial load generated when the main shaft 2 rotates at high speed. Through this structure, a multi-point support method for the main shaft 2 can be formed. Compared with the traditional single-sided support structure, it effectively reduces the bearing wear caused by the bending of the main shaft and the phenomenon of concentrated force on the vibrating shell during the vibration impact process.

[0035] See Figure 3-5 One end of the bearing housing 22 is provided with a insertion groove 221. The insertion groove 221 is set as a regular polygonal structure, preferably hexagonal or octagonal. Its inner wall is tightly fitted with the outer contour of the insertion post 41. After the insertion post 41 is inserted into the insertion groove 221, it can achieve an effective anti-rotation positioning function, preventing the spindle 2 from axial slippage and angular deflection under high frequency vibration. The structure of the insertion groove 221 can also realize the automatic orientation assembly of the insertion post 41 through geometric limit, improving the spindle docking accuracy.

[0036] See Figure 3-5 The upper end face of the splicing ring 42 is provided with a through groove 421, which is used to pass through part of the structure of the plug post 41 or the assembly screw, so as to further improve the stability and assembly reliability of the connecting component 4. The splicing ring 42 is located between the two main shafts 2, covering the connecting end of the main shaft 2 to form a circumferential limiting structure, so that the connecting component 4 has a stronger pull-out resistance under high-speed rotation, thereby enhancing the impact resistance and load-bearing stability of the vibratory impact main structure.

[0037] See Figure 3-5 The upper end face of the bearing housing 22 is provided with splicing grooves 222 at equal intervals around the central axis of the bearing housing 22. The splicing grooves 222 are in the form of arc or rectangular slots, and there are multiple grooves, which are evenly distributed and can be precisely matched with the corresponding splicing strips 422 on the splicing ring 42. The top and bottom of the splicing ring 42 are fixedly connected with splicing strips 422. The splicing strips 422 are arranged along the axial direction and are used to insert into the splicing grooves 222 to realize the three-point fitting connection between the two ends of the main shaft 2 and the splicing ring 42, thereby improving the torsional stiffness of the entire connection assembly and preventing relative displacement under vibration load.

[0038] See Figure 4-5 One end of the splicing strip 422 is provided with a locking groove 4221. The locking groove 4221 is a recessed structure and is located at the end of the splicing strip 422. It is used to engage with the corner of the plug-in post 41 to form a mechanical limiting structure. After the locking groove 4221 engages with the corner of the plug-in post 41, it can effectively restrict the axial and radial degrees of freedom of the plug-in post 41. This ensures that the connecting component 4 always maintains a high-precision fit during the operation of the vibratory impact equipment, reduces the risk of loosening or displacement caused by vibration and impact, and enhances the stability and safety of the whole machine operation.

[0039] The working principle of this utility model is as follows:

[0040] In use, the eccentric block 3 is fitted onto the spindle 2, and the bearing 21 is fitted onto the bearing seats 22 located at both ends of the spindle 2. Then, it is placed inside the housing 1, and the two spindles 2 are connected together by the connecting assembly 4.

[0041] During the pile driving process, the top main shaft 2 rotates at high speed under the drive of the hydraulic motor, and drives the bottom main shaft 2 to rotate synchronously through the connecting component 4;

[0042] Bearings 21 are provided at both ends of the two main shafts 2 inside the housing 1, which can reduce the wear of the main shafts 2 during rotation.

[0043] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A novel vibratory impact main body structure, comprising a shell (1), characterized in that: The housing (1) is provided with a main shaft (2), and bearings (21) are sleeved at both ends of the main shaft (2); An eccentric block (3) is fitted in the middle of the main shaft (2); The number of spindles (2) is set to two, and a connecting component (4) is provided between the two spindles (2). The connecting component (4) is used to connect the two spindles (2) together. The connecting assembly (4) includes a plug post (41) inserted into one end of the main shaft (2), and a splicing ring (42) is sleeved on the plug post (41).

2. The novel vibratory impact main body structure according to claim 1, characterized in that: Both ends of the main shaft (2) are fixedly connected to bearing seats (22), and the bearing (21) is sleeved on the bearing seat (22).

3. The novel vibratory impact main body structure according to claim 2, characterized in that: One end of the bearing housing (22) is provided with a plug groove (221), and the plug groove (221) is set as a regular polygon; The plug (41) is inserted into the plug slot (221).

4. The novel vibratory impact main body structure according to claim 1, characterized in that: The upper end face of the splicing ring (42) is provided with a through groove (421), and the splicing ring (42) is located between the two main shafts (2).

5. A novel vibratory impact main body structure according to claim 2, characterized in that: The upper end face of the bearing housing (22) is provided with splicing grooves (222) at equal intervals around the central axis of the bearing housing (22); The splicing ring (42) is fixedly connected to splicing strips (422) at both the top and bottom.

6. The novel vibratory impact main body structure according to claim 5, characterized in that: One end of the splicing strip (422) is provided with a locking groove (4221), which engages with the corner of the plug post (41).

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