A device for assisting a rotary pile driver in shaking soil and reducing noise of a core drill

Abstract

The present invention discloses a device for assisting a rotary pile driver in shaking soil and reducing noise when drilling a core barrel, which belongs to the technical field of construction equipment, and comprises a base and a vertical pole, wherein the lower end of the vertical pole is connected to the base, the upper end of the vertical pole is a free end, and a mud scraper is provided on the vertical pole. The device is easy to use, has a low manufacturing cost, and has a high soil unloading efficiency. The device does not require a high level of operation of the rotary pile driver operator, has little damage to the rotary pile driver, and greatly improves the service life of the rotary pile driver. Moreover, the noise generated during soil unloading is also small, which will not affect the life and work of the surrounding residents, and has a good market promotion and application value.

Description

Technical Field

[0001] The invention belongs to the technical field of construction equipment, and in particular relates to a device that assists a core barrel drill of a rotary pile driver in shaking soil and reducing noise. Background Art

[0002] When a rotary drilling rig is drilling, it is necessary to unload the soil brought out of the drill bucket. In the prior art, the unloading method of the rotary drilling rig is to manually push the pilot handle left and right, control the opening of the main valve according to the different pushing directions and positions of the pilot handle, and use the size of the main valve opening to control the size of the main pump opening, thereby controlling the forward and reverse rotation and rotation speed of the power head motor. The forward and reverse rotation of the power head motor drives the forward and reverse rotation of the power head, and the inertial impact caused by the forward and reverse switching of the power head is used to shake out the soil in the drill bit. When the rotary drilling rig encounters a clay layer, the clay drilled into the drill bucket is difficult to unload. The operator needs to repeatedly pull the pilot handle to make the power head switch forward and reverse continuously, and unload the clay through the impact force generated. Repeatedly pulling the pilot handle for a long time will make the operator tired, and different operators repeatedly pull the pilot handle at different frequencies. If the pilot handle is pulled too violently, it is easy to cause damage to the pilot handle. If the pilot handle is pulled too slowly, it will not have the effect of shaking the soil, resulting in low overall unloading efficiency. Therefore, the prior art not only increases the workload of operators, but also requires higher operating skills of operators.

[0003] In addition, during the construction of pile foundations in the construction industry, a large amount of noise will be generated at the construction site due to the high noise of the machines, which seriously interferes with the lives and work of the surrounding residents. Therefore, certain noise reduction measures must be taken at the construction site to reduce noise, prevent interference with the surrounding residents, and protect the surrounding environment. In order to better reduce noise pollution, sound insulation and noise reduction projects should be implemented and reasonable noise reduction measures should be formulated. Especially when rotary pile construction is carried out in areas where the rock mass is broken or relatively broken breccia limestone, ensure that the noise output of the rotary pile driver meets the requirements of the "Environmental Noise Emission Standard for Construction Sites GB 12523-2011" to ensure that no noise pollution is caused during construction.

[0004] At present, the measures commonly used to reduce the noise of rotary pile drivers at construction sites are mainly the following: (1) Strengthen the maintenance and care of the rotary pile drivers to keep them in the best condition to reduce the noise pollution caused by poor operation of the machinery; (2) Install noise isolation panels around the construction area. These noise treatment methods are costly and the effects are not ideal. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a device for assisting a rotary pile driver in shaking soil and reducing noise of a coring barrel drill, which has a simple structure and is easy to use, and can better improve the above-mentioned problems.

[0006] The embodiment of the present invention is achieved as follows:

[0007] An embodiment of the present invention provides a device for assisting a rotary pile driver in shaking soil and reducing noise of a core barrel drill, comprising a base and a vertical pole, wherein the lower end of the vertical pole is connected to the base, the upper end of the vertical pole is a free end, and a mud scraper is provided on the vertical pole.

[0008] Optionally, there are multiple scraper blades, and the multiple scraper blades are staggeredly distributed along the axial direction of the vertical pole.

[0009] Optionally, one end of the scraper blade is detachably connected to the vertical pole, and the other end is a free end and extends obliquely downward.

[0010] Optionally, the upper end of the vertical pole is a pointed cone structure.

[0011] Optionally, the base includes a steel cylinder and a connecting column, the connecting column is vertically arranged in the steel cylinder, reinforcing ribs are provided around the connecting column, one end of the reinforcing rib is connected to the connecting column, and the other end of the reinforcing rib is connected to the steel cylinder, the upper end of the connecting column is provided with an external thread, and the lower end surface of the vertical pole is provided with a threaded hole, and the external thread of the connecting column is threadedly connected to the threaded hole of the vertical pole.

[0012] Optionally, a disassembly hole is provided on the vertical pole, and the axial direction of the disassembly hole is consistent with the radial direction of the vertical pole.

[0013] Optionally, the interior of the steel cylinder is provided with a counterweight or filled with concrete.

[0014] Optionally, a protective cover is provided at the upper end of the steel cylinder, and the protective cover is a conical structure, and the cross-sectional area of ​​the protective cover gradually decreases from bottom to top.

[0015] Optionally, two lifting ears are provided on the outer circumferential surface of the steel cylinder, the two lifting ears are symmetrically distributed, and the lifting ears are threadedly connected to the steel cylinder.

[0016] Optionally, the outer diameter of the steel cylinder is 1000 mm, the height of the steel cylinder is 500 mm, the length of the vertical pole is 1500 mm, and the diameter of the vertical pole is 120 mm.

[0017] The beneficial effects of the present invention are:

[0018] The device for assisting the core drill of a rotary pile driver in shaking soil and reducing noise provided in the embodiment of the present invention is easy to use, has low manufacturing cost and high soil unloading efficiency. The device does not require high operating level of the rotary pile driver operator and causes little damage to the rotary pile driver, thereby greatly improving the service life of the rotary pile driver. Moreover, the noise generated during soil unloading is also relatively small, which will not affect the life and work of surrounding residents and has good market promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a device for assisting a rotary pile driver in shaking soil and reducing noise from a core barrel drill provided in an embodiment of the present invention;

[0021] In the figure: 11-base; 111-steel cylinder; 112-connecting column; 113-reinforcement rib; 114-concrete; 115-lifting ear; 116-protective cover; 12-vertical pole; 121-disassembly hole; 122-scraper blade. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] refer to Figure 1 As shown, an embodiment of the present invention provides a device for assisting a rotary pile driver in shaking soil and reducing noise of a core barrel drill, comprising a base 11 and a vertical pole 12 .

[0027] The base 11 plays the role of supporting and stabilizing other components. The base 11 includes a steel cylinder 111 and a connecting column 112. The cross-sectional shape of the steel cylinder 111 can be circular, elliptical, rectangular, regular polygonal or irregular, etc. The connecting column 112 is vertically arranged in the steel cylinder 111. The upper end horizontal height of the connecting column 112 is higher than the upper end horizontal height of the base 11. The axial direction of the connecting column 112 is consistent with the axial direction of the steel cylinder 111. Reinforcing ribs 113 are arranged around the connecting column 112. One end of the reinforcing rib 113 is connected to the connecting column 112, and the other end of the reinforcing rib 113 is connected to the steel cylinder 111. In this way, the connecting column 112 can be better ensured to be fixed stably. The upper end of the connecting column 112 is provided with an external thread.

[0028] A counterweight is arranged inside the steel cylinder 111 , so as to ensure the stability of the base 11 when placed on the ground. Of course, the steel cylinder 111 may also be filled with concrete 114 .

[0029] Two lifting ears 115 are arranged on the outer circumference of the steel cylinder 111 . The two lifting ears 115 are symmetrically distributed. The lifting ears 115 are threadedly connected to the steel cylinder 111 , which makes it easy to disassemble and assemble the lifting ears 115 . The arrangement of the lifting ears 115 also makes it easy to lift the steel cylinder 111 .

[0030] Of course, the base 11 can also be made of discus.

[0031] A threaded hole is provided on the lower end surface of the vertical pole 12, and the external thread of the connecting column 112 is threadedly connected to the threaded hole of the vertical pole 12, so that the vertical pole 12 is fixed to the base 11. The threaded connection between the vertical pole 12 and the connecting column 112 also facilitates the disassembly, replacement and maintenance of the vertical pole 12.

[0032] The upper end of the vertical rod 12 is a pointed cone structure, which makes it easier for the vertical rod 12 to be inserted into the soil in the auger.

[0033] The vertical pole 12 is provided with a disassembly hole 121, the axial direction of the disassembly hole 121 is consistent with the radial direction of the vertical pole 12, and a slender rod can be inserted into the disassembly hole 121 during disassembly, and the vertical pole 12 can be tightened or removed more easily through the lever principle.

[0034] The vertical pole 12 is provided with a plurality of scraper blades 122, which are staggered and distributed on different circumferences along the axial direction of the vertical pole 12. One end of the scraper blade 122 is detachably connected to the vertical pole 12, such as a threaded connection, so that the scraper blade 122 can be easily disassembled, repaired and replaced. The other end is a free end and extends downward at an angle. The scraper blade 122 is tilted to ensure that the soil falls more easily. The setting of the scraper blade can greatly improve the loosening effect of the inside of the barrel drill, and the scraper blade can scrape off the soil adhering to the inner wall of the barrel drill, ensuring that the rotary pile driver drills the soil more smoothly.

[0035] A protective cover 116 is provided at the upper end of the steel cylinder 111. The protective cover 116 is a conical structure. The cross-sectional area of ​​the protective cover 116 gradually decreases from bottom to top. The contour shape of the lower end of the protective cover 116 is the same as the contour shape of the upper end of the steel cylinder 111. The lower end of the protective cover 116 is snap-connected to the upper end of the steel cylinder 111. The setting of the protective cover 116 can prevent the soil falling from the barrel drill from accumulating on the upper surface of the base 11.

[0036] In this embodiment, the outer diameter of the steel cylinder 111 is 1000 mm, the height of the steel cylinder 111 is 500 mm, the vertical rod 12 is made of an iron rod or a steel rod, the length of the vertical rod 12 is 1500 mm, and the diameter of the vertical rod 12 is 120 mm.

[0037] The use principle of the device for assisting the core barrel drill of a rotary pile driver to shake soil and reduce noise provided by the embodiment of the present invention is as follows:

[0038] When a rotary pile driver is used to drill a hole at a construction site, the device is placed on the ground next to the rotary pile driver. When the rotary pile driver completes a soil drilling operation, the core drill of the rotary pile driver is rotated to the top of the device, and then the core drill is controlled to fall downward so that the vertical rod 12 is inserted into the core drill. Then the core drill is controlled to rotate, and the soil inside the core drill can be easily unloaded. The cycle operation is completed, and the soil falling around the device can be shoveled away by a bucket excavator. The device does not require high operating level of the rotary pile driver operator, has little damage to the rotary pile driver, greatly improves the service life of the rotary pile driver, and generates less noise when unloading soil, which will not affect the life and work of the surrounding residents. The cost is also low, and the unloading efficiency is also high, which has good market promotion and application value.

[0039] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A device for assisting a rotary pile driver in shaking soil and reducing noise of a coring barrel drill, characterized in that: It comprises a base and a vertical pole, wherein the lower end of the vertical pole is connected to the base, the upper end of the vertical pole is a free end, and a mud scraper is provided on the vertical pole; The number of the scraper blades is multiple, and the multiple scraper blades are staggeredly distributed along the axial direction of the vertical rod; One end of the scraper blade is detachably connected to the vertical rod, and the other end is a free end and extends obliquely downward.

2. The device for assisting the core drill of a rotary pile driver to shake soil and reduce noise according to claim 1, characterized in that: The upper end of the vertical pole is a pointed cone structure.

3. The device for assisting the core drill of a rotary pile driver to shake soil and reduce noise according to claim 1, characterized in that: The base includes a steel cylinder and a connecting column, the connecting column is vertically arranged in the steel cylinder, reinforcing ribs are arranged around the connecting column, one end of the reinforcing rib is connected to the connecting column, and the other end of the reinforcing rib is connected to the steel cylinder, the upper end of the connecting column is provided with an external thread, and the lower end surface of the vertical pole is provided with a threaded hole, and the external thread of the connecting column is threadedly connected with the threaded hole of the vertical pole.

4. The device for assisting the core drill of a rotary pile driver to shake soil and reduce noise according to claim 3, characterized in that: The vertical pole is provided with a disassembly hole, and the axial direction of the disassembly hole is consistent with the radial direction of the vertical pole.

5. The device for assisting the core drill of a rotary pile driver to shake soil and reduce noise according to claim 3, characterized in that: The steel cylinder is provided with a counterweight or filled with concrete.

6. The device for assisting the core drill of a rotary pile driver to shake soil and reduce noise according to claim 3, characterized in that: A protective cover is arranged at the upper end of the steel cylinder. The protective cover is a conical structure, and the cross-sectional area of ​​the protective cover gradually decreases from bottom to top.

7. The device for assisting the core drill of a rotary pile driver to shake soil and reduce noise according to claim 3, characterized in that: Two lifting ears are arranged on the outer circumferential surface of the steel cylinder, the two lifting ears are symmetrically distributed, and the lifting ears are threadedly connected to the steel cylinder.

8. The device for assisting the core drill of a rotary pile driver to shake soil and reduce noise according to claim 3, characterized in that: The outer diameter of the steel cylinder is 1000 mm, the height of the steel cylinder is 500 mm, the length of the vertical pole is 1500 mm, and the diameter of the vertical pole is 120 mm.

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