Vibrating vibroflot with vertical impacting function

Abstract

The utility model relates to the technical field of soft soil foundation reinforcement treatment engineering, in particular to a vibrating vibroflot with a vertical impact function, which comprises a vibration exciter and a submersible motor. The vibration exciter comprises a vibration exciter shell, a transmission shaft arranged in the vibration exciter shell, an eccentric block arranged on one side of the transmission shaft and self-aligning roller bearings arranged at the two ends of the transmission shaft, the transmission shaft is connected with the submersible motor through a coupler, and a step-shaped positioning shaft shoulder is arranged on the inner side of the vibration exciter shell. The step-shaped positioning shaft shoulders are matched with outer rings of the self-aligning roller bearings at the two ends of the transmission shaft and are used for bearing axial vibration loads of the self-aligning roller bearings; the rear end of the vibroflot is connected with the vibratory hammer through the ball shock absorber, the ball shock absorber comprises a rigid spherical structure and a ball cup with a spherical groove, the spherical structure is connected with a shell of the vibroflot, and the ball cup is connected with the vibratory hammer through the guide rod. The utility model has the advantages that the vibration-resistant strength of the diving motor of the vibroflot and the bearing capacity of the bearing seat to the axial force in the vertical direction are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of soft soil foundation reinforcement engineering technology, specifically a vibratory compactor with vertical impact capability. Background Technology

[0002] In existing technologies, vibratory compactors, as core construction equipment for soft soil foundation reinforcement, are primarily based on the radial centrifugal force generated by a horizontally eccentric vibrator. Traditional vibratory compactors generate transverse vibration waves through the horizontal rotation of the vibrator's main shaft. This vibration energy effectively compacts the pile fill material and surrounding soil, forming a composite foundation structure to improve the foundation's bearing capacity. Based on this functional requirement, the structural design features of existing vibratory compactors are: the vibrator adopts a horizontally symmetrically arranged biaxial eccentric structure; the shell construction emphasizes enhanced transverse vibration resistance; the transmission system uses a horizontally axial universal joint connection; and all load-bearing components undergo strength verification according to radial load requirements.

[0003] However, with the large-scale implementation of land reclamation projects in coastal areas, new technical challenges have emerged in the construction environment. The surface of reclaimed areas generally contains a thick layer of riprap and silt, with large-sized boulders. Traditional vibratory compactors exhibit significant unsuitability under these geological conditions: the pile hammer encounters boulders that obstruct vertical penetration, causing a sharp drop in drilling efficiency; the vibrator bearings deform under alternating axial loads; and the casing cracks due to stress concentration caused by axial vibration. Fundamentally, traditional equipment suffers from the following structural defects: the excitation system lacks an axial vibration transmission device, the transmission system cannot withstand and absorb vertical loads, and the casing does not employ a composite structure design resistant to bending and torsion.

[0004] Therefore, there is an urgent need to design a vibratory compactor with vertical impact capability to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a vibratory compactor with vertical impact capability, so that the compactor can withstand vibration load in the vertical direction and output vertical vibration impact, and can also avoid cracking of the shell due to stress concentration caused by vibration.

[0006] To achieve the above objectives, a vibratory compactor with vertical impact capability is designed, comprising an exciter and a submersible motor. The exciter includes an exciter housing, a drive shaft disposed within the exciter housing, an eccentric block disposed on one side of the drive shaft, and self-aligning roller bearings disposed at both ends of the drive shaft. The drive shaft is connected to the submersible motor via a coupling. The inner side of the exciter housing is provided with a stepped positioning shoulder, which engages with the outer ring of the self-aligning roller bearings at both ends of the drive shaft to withstand the axial vibration load of the self-aligning roller bearings. The rear end of the vibratory compactor is connected to a vibratory hammer via a ball head damper. The ball head damper includes a rigid spherical structure and a ball head seat with a spherical groove. The spherical structure is connected to the vibratory compactor housing, and the ball head seat is connected to the vibratory hammer via a guide rod.

[0007] Preferably, the present invention further includes: a cone head is provided at the front end of the vibratory shock, and an iron ring is provided at the rear of the cone head. The iron ring cooperates with the stepped positioning shoulder at the front of the vibratory shock housing to enable the self-aligning roller bearing at the front end of the transmission shaft to withstand axial vibration load.

[0008] Preferably, the present invention further includes: a pressure plate provided at the rear of the vibrator housing, the pressure plate cooperating with the stepped positioning shoulder at the rear of the vibrator housing to enable the self-aligning roller bearing at the rear end of the transmission shaft to withstand axial vibration load.

[0009] Preferably, the present invention further includes: the submersible motor includes a housing and a rotor disposed within the housing; the submersible motor housing is disposed within the vibratory shock absorber housing; a fluid channel is provided between the submersible motor housing and the vibratory shock absorber housing; a first connector and a second connector are provided at the front end of the submersible motor housing; the inner side of the first connector has a stepped structure for accommodating a bearing; the stepped structure of the first connector and the second connector cooperate to bear the axial vibration load of the bearing; and the bearing is sleeved on the output shaft of the submersible motor.

[0010] Preferably, the present invention further includes a transition section connecting the submersible motor and the ball head shock absorber.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] This invention optimizes the exciter structure of the vibratory compactor to enhance the vibration resistance of the submersible motor and the bearing capacity of the bearing housing for vertical axial forces. Through the design of the vibration damping structure, lateral vibration is isolated and vertical vibration is effectively transmitted, and the structural strength of the vibratory compactor housing is optimized. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the cone head, vibrator, and submersible motor structure of this utility model;

[0015] Figure 3 This is a bottom view of the cone head of this utility model;

[0016] Figure 4 This is a top view of the vibrator of this utility model;

[0017] Figure 5 This is a cross-sectional view of the submersible motor and vibratory impactor housing of this utility model.

[0018] Figure 6 This is a cross-sectional view of the cone head and exciter of this utility model.

[0019] Figure 7 This is a front view of the coupling of this utility model.

[0020] In the diagram: 1. Vibrator, 1-1. Vibrator housing, 1-2. Drive shaft, 1-3. Eccentric block, 1-4. Self-aligning roller bearing, 2. Submersible motor, 2-1. Housing, 2-2. Rotor, 2-3. Fluid channel, 2-4. First connecting piece, 2-5. Second connecting piece, 2-6. Bearing, 3. Coupling, 4. Positioning shoulder, 5. Ball head damper, 5-1. Spherical structure, 5-2. Ball head seat, 6. Vibratory impactor housing, 7. Guide rod, 8. Vibratory hammer, 9. Cone, 10. Iron ring, 11. Pressure plate, 12. Transition section. Detailed Implementation

[0021] To make the purpose, principle and structure of this utility model clearer, the following description is provided in conjunction with the accompanying drawings and specific embodiments.

[0022] This utility model provides a vibratory compactor with vertical impact capability.

[0023] With the vibratory compactor facing the cone 9 (the end in contact with the construction surface) as the front orientation and the vibratory compactor facing the vibratory hammer 8 (the end facing the construction surface) as the rear orientation, the vibratory compactor includes:

[0024] The vibrator 1 and the submersible motor 2 are provided. The vibrator 1 includes a vibrator housing 1-1, a drive shaft 1-2 disposed in the vibrator housing 1-1, an eccentric block 1-3 disposed on the radial side of the drive shaft 1-2, and self-aligning roller bearings 1-4 disposed at both ends of the drive shaft 1-2. The drive shaft 1-2 is connected to the output shaft of the submersible motor 2 through a coupling 3.

[0025] The coupling 3 has open structures on both sides, which respectively conform to the drive shaft 1-2 of the vibrator and the output shaft of the submersible motor 2. The inner wall of each open structure is also provided with a flat key parallel to the axial direction of the coupling 3, which is used to secure the drive shaft 1-2 of the vibrator and the output shaft of the submersible motor 2. A through hole is also provided on the coupling 3 at the rear of the drive shaft 1-2, and bolts are threaded into the through hole at the rear of the coupling 3 and the drive shaft 1-2 for fixation.

[0026] A stepped positioning shoulder 4 is formed on the inner side of the vibrator housing 1-1. The stepped positioning shoulder 4 cooperates with the outer ring of the self-aligning roller bearing 1-4 to bear the axial vibration load of the self-aligning roller bearing 1-4.

[0027] The vibratory shock is provided with a cone head 9 at the front end, and an iron ring 10 is assembled at the rear of the cone head 9. The iron ring 10 and the stepped positioning shoulder 4 provided at the front of the vibratory shock housing 1-1 form a mating structure and work together on the self-aligning roller bearing 1-4 at the front end of the transmission shaft 1-2 to bear the axial vibration load.

[0028] The transmission shaft 1-2 is provided with bushings at both ends, and the self-aligning roller bearing 1-4 is provided on the circumference of the bushing.

[0029] The front end of the drive shaft 1-2 is fitted with an adjusting shim located on the front side and a retaining sleeve located on the rear side. The inner ring of the self-aligning roller bearing 1-4 is clamped between the adjusting shim and the retaining sleeve. A grooved flange is also fitted on the front side of the adjusting shim, and a round nut brake washer and a round nut are fitted on the front side of the grooved flange. The round nut is fixed to the front end of the drive shaft 1-2 by a threaded engagement. One side of the retaining sleeve abuts against the stepped structure at the front end of the drive shaft 1-2, and the other end abuts against the inner ring of the self-aligning roller bearing 1-4.

[0030] A pressure plate 11 is provided at the rear of the exciter housing 1-1. The pressure plate 11 and the stepped positioning shoulder 4 provided at the rear of the exciter housing 1-1 form a mating structure and work together to support the self-aligning roller bearing 1-4 at the rear end of the transmission shaft 1-2 to bear the axial vibration load.

[0031] The rear end of the drive shaft 1-2 is provided with a round nut retaining washer and a round nut in sequence. The round nut is threaded with the rear end of the drive shaft 1-2 to fix the transmission. The front side of the inner ring of the self-aligning roller bearing 1-4 at the rear of the drive shaft abuts against the stepped structure at the rear side of the drive shaft 1-2, and the rear side of the inner ring of the self-aligning roller bearing 1-4 at the rear of the drive shaft abuts against the round nut retaining washer at the rear end.

[0032] The rear end of the vibratory impactor is connected to the vibratory hammer 8 via a ball head shock absorber 5. The ball head shock absorber 5 includes a rigid spherical structure 5-1 and a ball head seat 5-2 with a spherical groove. The rigid spherical structure 5-1 is fixedly connected to the vibratory impactor housing 6. The ball head seat 5-2 is connected to the vibratory hammer 8 via a guide rod 7.

[0033] The submersible motor 2 includes a housing 2-1 and a rotor 2-2 disposed within the housing 2-1. The housing 2-1 of the submersible motor 2 is assembled inside the vibratory shock absorber housing 6, and a fluid channel 2-3 is formed between the submersible motor housing 2-1 and the vibratory shock absorber housing 6. The vibratory shock absorber housing 1-1 has ear plates extending from the rear to the front on both sides. Each ear plate contains a fluid channel, and the fluid channel at the rear of the ear plate is bent twice to form a sealed conductive connection with the fluid channel 2-3 on the submersible motor 2. The cone 9 also has a fluid channel on its circumference. The rear of the fluid channel of the cone 9 is sealed and connected to the fluid channel on the vibratory shock absorber housing 1-1, and the front of the fluid channel of the cone 9 has a spray port at the tip of the cone 9.

[0034] The submersible motor housing 2-1 has a first connector 2-4 and a second connector 2-5 at its front end. The first connector 2-4 has a stepped structure, with the lower tread of the rear part of the stepped structure abutting against the front part of the housing 2-1 and connected by bolts. The lower tread of the front part of the stepped structure abuts against the rear top surface of the second connector 2-5 and is connected by bolts. A gap is left between the upper tread of the front part of the first connector 2-4 and the rear top surface of the second connector 2-5. The bearing 2-6 is disposed in the gap and is tightly clamped by the first connector 2-4 and the second connector 2-5, forming an axial constraint structure. The bearing 2-6 is sleeved on the output shaft of the submersible motor 2.

[0035] The eccentric motion produces a circular oscillation.

[0036] The vibratory impactor can reciprocate under the action of the eccentric blocks 1-3 of the vibrator 1. The axis of the swing forms a fixed angle with the rotation axis of the transmission shaft 1-2. During the rotation, it generates a conical trajectory motion in three-dimensional space, and its motion envelope has the geometric characteristics of a right circular cone or an oblique circular cone. The nozzle of the cone head 9 can spray out the high-pressure liquid in the fluid channel, and it also reciprocates in a conical shape with the swing of the vibratory impactor.

[0037] The vibratory hammer 8 can also provide an axial force, which is transmitted to the cone head 9 through the ball head damper 5, the submersible motor 2 and the exciter 1. The axial clamping structure of the self-aligning roller bearings 1-4 ensures that the device will not suffer stress concentration and cracking damage under the action of axial force.

[0038] The submersible motor 2 and the ball head shock absorber 5 are connected by a transition section 12.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and novel concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A vibratory compactor with vertical impact capability, comprising an exciter and a submersible motor, wherein the exciter includes an exciter housing, a drive shaft disposed within the exciter housing, an eccentric block disposed on one side of the drive shaft, and self-aligning roller bearings disposed at both ends of the drive shaft, the drive shaft being connected to the submersible motor via a coupling, characterized in that, The vibrator housing has a stepped positioning shoulder on the inner side. The stepped positioning shoulder cooperates with the outer ring of the self-aligning roller bearings at both ends of the transmission shaft to bear the axial vibration load of the self-aligning roller bearings. The rear end of the vibratory impactor is connected to the vibratory hammer via a ball head shock absorber. The ball head shock absorber includes a rigid spherical structure and a ball head seat with a spherical groove. The spherical structure is connected to the vibratory impactor housing, and the ball head seat is connected to the vibratory hammer via a guide rod.

2. A vibratory compactor with vertical impact capability as described in claim 1, characterized in that, The vibratory shock absorber has a cone head at the front end and an iron ring at the rear of the cone head. The iron ring cooperates with the stepped positioning shoulder at the front of the vibratory shock absorber housing to enable the self-aligning roller bearing at the front end of the drive shaft to withstand axial vibration loads.

3. A vibratory compactor with vertical impact capability as described in claim 1, characterized in that, The vibrator housing is provided with a pressure plate at the rear. The pressure plate cooperates with the stepped positioning shoulder at the rear of the vibrator housing to enable the self-aligning roller bearing at the rear end of the drive shaft to withstand axial vibration load.

4. A vibratory compactor with vertical impact capability as described in claim 1, characterized in that, The submersible motor includes a housing and a rotor disposed within the housing. The submersible motor housing is disposed within the vibratory shock absorber housing. A fluid channel is provided between the submersible motor housing and the vibratory shock absorber housing. The front end of the submersible motor housing is provided with a first connector and a second connector. The inner side of the first connector has a stepped structure for accommodating a bearing. The stepped structure of the first connector and the second connector cooperate to bear the axial vibration load of the bearing. The bearing is sleeved on the output shaft of the submersible motor.

5. A vibratory compactor with vertical impact capability as described in claim 1, characterized in that, The submersible motor and the ball head shock absorber are connected by a transition section.

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