A vibrator capable of improving the roundness of a hole

Abstract

The present application relates to the technical field of foundation treatment, and provides a vibrator capable of improving the compactness of a hole. An elastic expansion device is arranged between a discharge head and a driving device, and a discharge cavity is formed between the discharge head and the driving device. An eccentric device is arranged in the driving device, and an acceleration sensor is arranged in the discharge head. The elastic expansion device is expanded and contracted by the axial acceleration generated by the eccentric device to open the discharge hole on the discharge head, and the discharge is completed by the radial acceleration generated by the eccentric device. Multiple adjusting devices are uniformly arranged on the outer wall of the outer sleeve near the driving device. The adjusting device is rotatably inserted into the hole to be compacted, and the vibration motor in the driving device is kept in a horizontal position in real time, and is located at the center of the hole to be compacted, so that the degree that the discharge head is located at the center of the hole to be compacted is maximized, the compactness of the hole after compaction is improved, and the post-processing of the compacted hole is facilitated.

Description

Technical Field

[0001] This invention relates to the field of foundation treatment technology, and more specifically to a vibratory compactor that can improve the compactness and roundness of boreholes. Background Technology

[0002] A vibratory compactor is a specialized machine used in vibratory compaction construction. It utilizes horizontal vibration to compact the fill material and surrounding soil, thereby improving the bearing capacity of the foundation, reducing settlement, increasing foundation stability, and enhancing resistance to earthquake liquefaction.

[0003] Chinese patent CN106284286A discloses a construction process for anchor bolt holes, belonging to the field of support engineering. It aims to facilitate drilling in soft subgrades. The key technical point is the use of a vibratory compaction hole-forming device to drill anchor bolt holes. The vibratory compaction hole-forming device includes a Luoyang shovel, with a sleeve fitted over its outer side. One end of the sleeve is fixedly connected to a vibratory compactor, and a drill bit is fixedly attached to the end of the vibratory compactor extending beyond the sleeve. The construction process for the anchor bolt holes is as follows: determining the hole location; adjusting the drilling angle; compaction hole formation; extracting ground material; and forming the anchor bolt hole. This invention solves the problem of difficult drilling in soft subgrades.

[0004] However, the vibratory compactor does not fully utilize the radial acceleration generated during the vibration process, and the fixed plate is located on the ground, which cannot fully utilize the power generated by the motor vibration, nor can it ensure that the vibratory compactor is located in the center of the hole that needs to be compacted to the greatest extent. Summary of the Invention

[0005] The purpose of this invention is to provide a vibratory punch that can improve the compactness and roundness of holes, thereby solving the technical problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a vibratory compactor for improving the compactness and roundness of holes, comprising: an outer cylinder, an inner cylinder, a drive device, a feeding device, a discharge head, and an adjusting device; wherein, the outer cylinder is provided with an upper sleeve and a lower sleeve, the inner cylinder is disposed inside the outer cylinder, the inner cylinder is connected to the drive device, and the discharge head is slidably connected to the drive device and the lower sleeve respectively; an elastic telescopic device is provided between the discharge head and the drive device, forming a discharge cavity between the discharge head and the drive device; an eccentric device is provided in the drive device, and an acceleration sensor is provided in the discharge head; the elastic telescopic device expands and contracts by the axial acceleration generated by the eccentric device to open the discharge hole on the discharge head, and completes the discharge by the radial acceleration generated by the eccentric device; a plurality of adjusting devices are evenly arranged on the outer wall of the outer cylinder near the drive device, the adjusting devices are rotatably inserted into the holes to be compacted, and adjust the vibration motor in the drive device in real time to maintain a horizontal position and be located at the center of the hole.

[0007] In an optional embodiment, multiple adjustment devices have the same structure. Each adjustment device is provided with an adjustment rod and a positioning plate. The adjustment rod is hinged to the outer wall of the outer cylinder. The adjustment rod is an electric telescopic rod that can be rotatably and telescopically inserted into the hole that needs to be sealed. The positioning plate 52 is provided with a connecting groove, and the positioning plate is hinged to the adjustment rod through the connecting groove.

[0008] In an optional embodiment, the driving device is provided with a vibration motor, which is connected to the upper sleeve through multiple mounting plates. The upper part of the vibration motor is connected to the inner cylinder, and the output end of the vibration motor is connected to the drive shaft through a coupling. An eccentric block is provided on the drive shaft.

[0009] In an optional embodiment, the upper part of the discharge head is a connecting plate, and the connecting plate is provided with a shaft hole and a connecting hole for the drive shaft to pass through; the side wall of the discharge head forms a sliding cavity, the end of the sliding cavity forms a protruding edge through the connecting plate, and a plurality of discharge holes are formed on the side wall of the inner cavity of the discharge head.

[0010] In an optional embodiment, the drive shaft is provided with an upper limit block, a lower limit block, a limit groove, and a sealing plate; wherein, a sliding plate is slidably connected to the limit groove, the sliding plate is slidably engaged with the inner cavity of the discharge head, a spring sleeved on the drive shaft is provided between the sliding plate and the connecting plate, and the sliding plate, the sealing plate, and the inner cavity form a discharge cavity.

[0011] In an optional embodiment, a connecting slider is provided at the end of the lower sleeve. The connecting slider is disposed in the sliding cavity and slides up and down along the sliding cavity.

[0012] In an optional embodiment, the upper sleeve and the lower sleeve are movably connected by the connector; the number of discharge holes is greater than 15.

[0013] In an optional embodiment, the portion of the drive shaft located between the limiting groove and the sealing plate is provided with helical blades.

[0014] In an optional embodiment, the feeding device includes a first feeding pipe and a second feeding pipe, which respectively pass through the connecting hole on the connecting plate and the feeding hole on the sliding plate to communicate with the discharge chamber.

[0015] In an optional embodiment, when the vibrating motor is not in operation, the spring is in an uncompressed state, the upper limit block is in contact with the connecting plate of the discharge head, and the sliding plate blocks the discharge hole; when the vibrating motor is in operation, it drives the eccentric block to rotate and generate vibration, the discharge head moves downward under the acceleration along the axial direction of the drive shaft, compressing the spring, the upper limit block separates from the connecting plate, the sliding plate no longer blocks the discharge hole, the discharge hole connects to the discharge chamber, the material in the discharge chamber is discharged through the discharge hole under the acceleration along the radial direction of the drive shaft and the drive of the spiral blades, and the hole is compacted under the vibration of the discharge head.

[0016] The beneficial effects of this invention are as follows:

[0017] (1) The vibratory punch is equipped with an adjustment device. The adjustment device can be rotatably inserted into the hole to be compacted and adjusts the vibration motor in the drive device in real time to keep it in a horizontal position and at the center of the hole to be compacted, so as to maximize the degree to which the discharge head is located at the center of the hole to be compacted, thereby improving the roundness of the hole after compaction and facilitating the subsequent work of the hole after compaction.

[0018] (2) The vibratory compactor makes full use of the axial and radial acceleration generated by the vibration of the vibratory motor. It uses the axial acceleration to open the discharge hole and uses the radial acceleration to discharge the material through the discharge hole in combination with the rotation of the drive shaft. It works with the discharge head to complete the hole compaction. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a vibratory compactor that can improve the density and roundness of holes according to an embodiment of the present invention.

[0021] Figure 2 This is a top view (non-discharge state) of a vibratory compactor that can improve the compactness and roundness of holes according to an embodiment of the present invention.

[0022] Figure 3 for Figure 2 Sectional view along the AA direction.

[0023] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point D.

[0024] Figure 5 This is a top view (discharge state) of a vibratory compactor that can improve the compactness and roundness of holes according to an embodiment of the present invention.

[0025] Figure 6 for Figure 5 Sectional view along the BB direction.

[0026] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point E in the middle.

[0027] Figure 8 A partial structural diagram of a vibratory compactor that can improve the roundness and density of holes according to an embodiment of the present invention. Figure 1 .

[0028] Figure 9 A partial structural diagram of a vibratory compactor that can improve the roundness and density of holes according to an embodiment of the present invention. Figure 2 .

[0029] Figure 10 A partial structural diagram of a vibratory compactor that can improve the roundness and density of holes according to an embodiment of the present invention. Figure 3 .

[0030] Figure 11 This is a schematic diagram of the discharge head in a vibratory compactor that can improve the compactness and roundness of holes, according to an embodiment of the present invention.

[0031] Figure 12 This is a top view of the discharge head in a vibratory compactor that can improve the roundness and density of holes according to an embodiment of the present invention.

[0032] Figure 13 for Figure 12 Sectional view along the CC direction.

[0033] In the figure, the reference numerals are as follows: 1. Outer cylinder; 11. Upper sleeve; 12. Connector; 13. Lower sleeve; 2. Discharge head; 21. Discharge hole; 22. Protruding flange; 23. Connecting hole; 24. Sliding cavity; 25. Shaft hole; 26. Inner cavity; 27. Connecting plate; 3. Feeding device; 31. Conveying pipe one; 32. Conveying pipe two; 4. Drive device; 41. Inner cylinder; 42. Vibrating motor; 43. Coupling; 44. Drive 45. Driven shaft, 46. Electric telescopic rod, 47. Eccentric block, 48. Groove, 49. Slide groove, 410. Slide rod, 411. Through groove, 412. Mounting plate, 413. Upper limit block, 414. Spring, 415. Connecting slider, 416. Discharge chamber, 417. Lower limit block, 418. Sliding plate, 419. Sealing plate, 510. Limit groove, 52. Adjusting device, 53. Adjusting rod, 54. Positioning piece, 55. Connecting through groove. Detailed Implementation

[0034] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0036] Please see the appendix Figure 1-13 The purpose of this embodiment is to provide a vibratory compactor that can improve the compactness and roundness of holes, comprising: an outer cylinder 1, an inner cylinder 41, a drive device 4, a feeding device 3, and a discharge head 2; wherein, the outer cylinder 1 is provided with an upper sleeve 11 and a lower sleeve 13, preferably, the upper sleeve 11 and the lower sleeve 13 are movably connected by a connector 12. The inner cylinder 41 is disposed inside the outer cylinder 1 and is connected to the drive device 4. The discharge head 2 is slidably connected to the drive device 4 and the lower sleeve 13 respectively; an elastic telescopic device is provided between the discharge head 2 and the drive device 4, forming a discharge chamber 415 between the discharge head 2 and the drive device 4.

[0037] Specifically, the drive device 4 is equipped with an eccentric device, and the discharge head 2 is equipped with an acceleration sensor; the elastic telescopic device opens the discharge hole 21 on the discharge head 2 by extending and contracting with the axial acceleration generated by the eccentric device, and completes the discharge by relying on the radial acceleration generated by the eccentric device; the drive device 4 adjusts the eccentric distance of the eccentric device in real time according to the detection value of the acceleration sensor to adjust the amplitude and discharge speed of the vibratory impactor.

[0038] Furthermore, the drive device 4 is equipped with a vibration motor 42, which is connected to the upper sleeve 11 via multiple mounting plates 411. The upper part of the vibration motor 42 is connected to the inner cylinder 41, and the output end of the vibration motor 42 is connected to the drive shaft 44 via a coupling 43. The drive shaft 44 is provided with two symmetrically arranged grooves 47, and an eccentric block 46 is provided on the groove 47. The eccentric block 46 is provided with a through groove 410, which is slidably engaged with the groove 47. The drive shaft 44 is also equipped with an electric telescopic rod 45, which is connected to the eccentric block 46 and drives it to move radially along the drive shaft 44. The drive shaft 44 is also equipped with a slide rod 49, which is slidably engaged with the sliding groove 48 on the eccentric block 46. The vibratory compactor can adjust the amplitude of the vibration motor 42 in real time according to the real-time detection results of the acceleration sensor and the completion status of the hole compaction. For example, at the beginning of the hole compaction work, the maximum motor amplitude can be used. As the hole compaction work is completed, the motor amplitude is gradually reduced or adjusted as the hole diameter to be compacted gradually decreases to complete the hole compaction work, which can save power to the maximum extent.

[0039] In addition, the upper part of the discharge head 2 is a connecting plate 27, and the connecting plate 27 is provided with a shaft hole 25 and a connecting hole 23 for the drive shaft 44 to pass through; the side wall of the discharge head 2 forms a sliding cavity 24, and the end of the sliding cavity 24 forms a protruding edge 22 through the connecting plate 27; a plurality of discharge holes 21 are formed on the side wall of the inner cavity 26 of the discharge head 2. Preferably, the number of discharge holes 21 is greater than 15. In this embodiment, the number of discharge holes 21 is 20.

[0040] It should be noted that the drive shaft 44 is equipped with an upper limit block 412, a lower limit block 416, a limit groove 419, and a sealing plate 418. A sliding plate 417 is slidably connected to the limit groove 419, and the sliding plate 417 slidably engages with the inner cavity 26 of the discharge head 2. A spring 413 is sleeved on the drive shaft 44 between the sliding plate 417 and the connecting plate 27. The sliding plate 417, the sealing plate 418, and the inner cavity 26 form a discharge cavity 415. A connecting slider 414 is provided at the end of the lower sleeve 13. The connecting slider 414 is located in the sliding cavity 24 and slides up and down along the sliding cavity 24. A spiral blade is provided on the portion of the drive shaft 44 located between the limit groove 419 and the sealing plate 418. The rotation of the spiral blade assists in completing the discharge.

[0041] In an optional embodiment, the feeding device 3 includes a first conveying pipe 31 and a second conveying pipe 32. The first conveying pipe 31 and the second conveying pipe 32 pass through the connecting hole 23 on the connecting plate 27 and the feeding hole on the sliding plate 417, respectively, and communicate with the discharge chamber 415. The material enters the discharge chamber 415 through the first conveying pipe 31 and the second conveying pipe 32.

[0042] Finally, multiple evenly distributed adjustment devices 5 are provided on the outer wall of the upper sleeve 11 near the outer surface of the connector 12. Preferably, there are four adjustment devices 5, each with the same structure, including an adjustment rod 51 hinged to the outer wall of the upper sleeve 11. The adjustment rod 51 is preferably an electric telescopic rod, which can be inserted and positioned into the hole to be compacted by rotation and extension. A positioning piece 52 is connected to the adjustment rod 51, and a connecting groove 53 is provided on the positioning piece 52. The positioning piece 52 is hinged to the adjustment rod 51 through the connecting groove 53. The positioning piece 52 can increase the contact area with the hole to be compacted, improve the stability of the upper sleeve 11, and maximize the position of the discharge head 2 in the center of the hole to be compacted, so as to improve the roundness of the hole after compaction, so as to facilitate the subsequent work of the hole after compaction. It is worth mentioning that the adjustment device 5 is equipped with a level, which adjusts the length of each adjustment rod 51 in real time to ensure the real-time horizontal position of the vibratory impactor. It should also be noted that in this embodiment, the adjustment device 5 is located below ground level and close to the vibratory motor 42, with the distance between them remaining constant. This better ensures that the vibratory compactor is centered on the hole requiring compaction, and especially ensures that the vibratory motor 42 is centered on the hole requiring compaction. In the prior art, compared to the prior art where the positioning disk 7 is installed on the ground surface, when the vibratory compactor is located deeper below ground level, the vibratory compactor deviates significantly from the center of the hole, making it difficult to control. Therefore, the effect is inferior to the arrangement in this embodiment.

[0043] The working principle of the vibratory compactor in this embodiment is as follows: When the vibratory motor 42 is not in working state, the spring 413 is in an uncompressed state, the upper limit block 412 is in contact with the connecting plate 27 of the discharge head 2, and the sliding plate 417 blocks the discharge hole 21; when the vibratory motor 42 is in working state, it drives the eccentric block 46 to rotate and generate vibration. The discharge head 2 moves downward under the action of acceleration along the axial direction of the drive shaft 44, compressing the spring 413. The upper limit block 412 separates from the connecting plate 27, and the sliding plate 417 no longer blocks the discharge hole 21. The discharge hole 21 is connected to the discharge chamber 415. The material in the discharge chamber 415 is discharged through the discharge hole 21 under the action of acceleration along the radial direction of the drive shaft 44 and the drive of the spiral blades, and completes the hole compaction work under the vibration of the discharge head 2. This vibratory compactor makes full use of the axial and radial acceleration generated by the vibration motor 42. The axial acceleration is used to open the discharge hole, and the radial acceleration is used in combination with the rotation of the drive shaft to discharge the material through the discharge hole, which works with the discharge head 2 to complete the hole compaction.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vibratory compactor for improving the compactness and roundness of holes, comprising: The outer cylinder (1), inner cylinder (41), drive device (4), feeding device (3), discharge head (2) and adjusting device (5); wherein, the outer cylinder (1) is provided with an upper sleeve (11) and a lower sleeve (13), the inner cylinder (41) is provided inside the outer cylinder (1), the inner cylinder (41) is connected to the drive device (4), and the discharge head (2) is slidably connected to the drive device (4) and the lower sleeve (13) respectively; The feature is that an elastic telescopic device is provided between the discharge head (2) and the driving device (4), and a discharge cavity (415) is formed between the discharge head (2) and the driving device (4); an eccentric device is provided in the driving device (4), and an acceleration sensor is provided in the discharge head (2); The elastic telescopic device expands and contracts by extending and contracting with the axial acceleration generated by the eccentric device to open the discharge hole (21) on the discharge head (2), and completes the discharge by relying on the radial acceleration generated by the eccentric device; Multiple adjustment devices (5) are evenly arranged on the outer wall of the outer cylinder (1) near the drive device (4). The adjustment device (5) can be rotatably inserted into the hole that needs to be sealed, and adjusts the vibration motor (42) in the drive device (4) in real time to keep it in a horizontal position and located at the center of the hole. The drive device (4) is equipped with a vibration motor (42), which is connected to the upper sleeve (11) through multiple mounting plates (411). The upper part of the vibration motor (42) is connected to the inner cylinder (41), and the output end of the vibration motor (42) is connected to the drive shaft (44) through a coupling (43). An eccentric block (46) is provided on the drive shaft (44). The upper part of the discharge head (2) is a connecting plate (27), and the connecting plate (27) is provided with a shaft hole (25) and a connecting hole (23) for the drive shaft (44) to pass through; a sliding cavity (24) is formed on the side wall of the discharge head (2), and a protruding edge (22) is formed at the end of the sliding cavity (24) through the connecting plate (27); a plurality of discharge holes (21) are formed on the side wall of the inner cavity (26) of the discharge head (2); The drive shaft (44) is provided with an upper limit block (412), a lower limit block (416), a limit groove (419), and a sealing plate (418); wherein, a sliding plate (417) is slidably connected to the limit groove (419), the sliding plate (417) is slidably engaged with the inner cavity (26) of the discharge head (2), a spring (413) sleeved on the drive shaft (44) is provided between the sliding plate (417) and the connecting plate (27), and the sliding plate (417), the sealing plate (418) and the inner cavity (26) form a discharge cavity (415).

2. The vibratory compactor for improving hole compactness and roundness as described in claim 1, characterized in that, The multiple adjustment devices (5) have the same structure. Each adjustment device (5) is provided with an adjustment rod (51) and a positioning plate (52). The adjustment rod (51) is hinged to the outer wall of the outer cylinder (1). The adjustment rod is an electric telescopic rod that can be rotatably and telescopically inserted into the hole that needs to be sealed. The positioning plate (52) is provided with a connecting groove (53). The positioning plate (52) is hinged to the adjustment rod (51) through the connecting groove (53).

3. The vibratory compactor for improving hole compactness and roundness as described in claim 1, characterized in that, The lower sleeve (13) is provided with a connecting slider (414) at its end. The connecting slider (414) is located in the sliding cavity (24) and slides up and down along the sliding cavity (24).

4. The vibratory compactor for improving hole compactness and roundness as described in claim 1, characterized in that, The upper sleeve (11) and the lower sleeve (13) are movably connected by a connector (12); the number of discharge holes (21) is greater than 15.

5. The vibratory compactor for improving hole compactness and roundness as described in claim 3, characterized in that, The portion of the drive shaft (44) located between the limiting groove (419) and the sealing plate (418) is provided with helical blades.

6. The vibratory compactor for improving hole compactness and roundness as described in claim 5, characterized in that, The feeding device (3) includes a first feeding pipe (31) and a second feeding pipe (32). The first feeding pipe (31) and the second feeding pipe (32) pass through the connecting hole (23) on the connecting plate (27) and the feeding hole on the sliding plate (417) respectively, and communicate with the discharge chamber (415).

7. The vibratory compactor for improving hole compactness and roundness as described in claim 6, characterized in that, When the vibrating motor (42) is not in working state, the spring (413) is in an uncompressed state, the upper limit block (412) is in contact with the connecting plate (27) of the discharge head (2), and the sliding plate (417) blocks the discharge hole (21); when the vibrating motor (42) is in working state, it drives the eccentric block (46) to rotate and generate vibration, the discharge head (2) moves downward under the acceleration along the axial direction of the drive shaft (44) to compress the spring (413), the upper limit block (412) separates from the connecting plate (27), the sliding plate (417) no longer blocks the discharge hole (21), the discharge hole (21) is connected to the discharge chamber (415), the material in the discharge chamber (415) is discharged through the discharge hole (21) under the acceleration along the radial direction of the drive shaft (44) and the drive of the spiral blade, and completes the hole compaction work under the vibration of the discharge head (2).

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