Mud cleaning device for auger stem of pile machine

Abstract

The utility model discloses a mud cleaning device for spiral drill rods of a piling machine, which comprises two steel brushes used for cleaning respective spiral drill rods, the steel brushes are fixed with one ends of respective connecting rods, and the other ends of the respective connecting rods are connected with respective ends of poke rods of which the midpoints are hinged on a mast of the piling machine; the oil cylinder is provided with a piston rod, and the free end of the piston rod drives the poke rod to enable the first steel brush to abut against the first spiral drill rod to scrape mud through the connecting rod of the poke rod or enable the second steel brush to abut against the second spiral drill rod to scrape mud or enable the two steel brushes to be separated from the corresponding spiral drill rods when the oil cylinder stretches out and draws back. The free end of the piston rod is hinged with one end of the poke rod; a first bolt through hole rotationally matched with the bolt is formed in the middle of the length of the steel poke rod; and the free end of the piston rod of the oil cylinder is hinged with the right or left position of the midpoint of the poke rod. The mud cleaning device for the spiral drill rod of the pile machine is relatively simple in structure, relatively low in material cost and capable of cleaning the double-spiral drill rod in sequence.

Description

Technical Field

[0001] This utility model relates to the field of foundation construction technology, specifically a mud-cleaning device for a pile driver auger drill rod. Background Technology

[0002] Spiral drill rods for pile drivers, also known in the industry as long spiral drill rods, are widely used in pile foundation construction. After the pile driver's spiral drill rod drills and pull the hole out of the ground, soil inevitably adheres to the drill rod. The traditional method of cleaning is manual scraping, which is time-consuming, labor-intensive, and unsafe.

[0003] Later, technicians designed a mud-cleaning device for the auger drill rod of the piling machine, which was significantly more effective than manual cleaning. Furthermore, there are many types of mud-cleaning devices for the auger drill rod of the piling machine, each with a different structure.

[0004] However, existing cleaning devices for pile driver augers still have the following shortcomings: 1. Some use motor drive, while others use gear-driven rotating wheels with multiple scrapers, etc., making their structure relatively complex and increasing material, labor, and maintenance costs. 2. They can only clean one auger rod at a time, and there are no cleaning devices specifically designed for pile driver augers with dual power heads and dual auger rods. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a mud cleaning device for pile driver spiral drill rods that has a relatively simple structure, relatively low material cost, and can clean the double spiral drill rods sequentially.

[0006] The technical solution of this utility model is to provide a mud-cleaning device for a pile driver's auger drill rod, including two steel brushes for cleaning their respective auger drill rods. The steel brushes are fixed to one end of their respective connecting rods, and the other end of each connecting rod is connected to one end of a lever hinged at a midpoint on the pile driver mast. The mud-cleaning device for the pile driver's auger drill rod also includes a hydraulic cylinder connected to the pile driver mast. The hydraulic cylinder has a piston rod whose free end, when extending or retracting, drives the lever through the respective connecting rods to push the first steel brush against the first auger drill rod to scrape mud, or pushes the second steel brush against the second auger drill rod to scrape mud, or causes both steel brushes to detach from their respective auger drill rods. The free end of the piston rod is hinged to one end of the lever.

[0007] With the above structure, the mud-cleaning device for the spiral drill rod of this utility model has the following advantages:

[0008] During the process of the dual power heads driving their respective auger drill rods to be pulled out of the ground and spiral upwards, the steel brush only needs to be pressed against the outer wall of the drill rod in the spiral groove of the auger drill rod spiraling upwards in the opposite direction of the spiral advance through the oil cylinder, the actuating rod and the respective connecting rod. Its structure is simple, easy to operate, and the material cost, labor preparation cost and maintenance cost are relatively low.

[0009] In particular, by simply controlling the start and stop of the hydraulic cylinder, it is very convenient to switch between the state where the first steel brush is against the first auger rod to scrape mud, or the second steel brush is against the second auger rod to scrape mud, or both steel brushes are detached from their respective auger rods. This can fully adapt to the working rhythm of the two auger rods of the dual-power head piling machine drilling and pulling holes one after the other. Moreover, the process of scraping mud with the steel brushes and the brushing process of advancing and retracting are flexible, stable and reliable. The technical effect of cleaning the mud on the two auger rods of the dual-power head piling machine is ideal.

[0010] Furthermore, a first bolt is screwed and fixed to the bottom plate of the mast, and a bolt through hole is located in the middle of the length of the steel actuating rod, which rotates and fits on the bolt. The actuating rod is hinged at the midpoint to the pile driver mast. With the above specific structure, the hinge structure is simple, the actuating rod rotates flexibly, stably and reliably around the hinge point, and the steel actuating rod has better strength.

[0011] Furthermore, the free end of the hydraulic cylinder piston rod is hinged to the steel actuating rod at a position slightly to the right or left of its midpoint. With this structure, since the extension or retraction of the free end of the piston rod results solely in the rotation of the actuating rod around the bolt axis that acts as a winch, the piston rod's extension and retraction process is more flexible and stable.

[0012] Furthermore, the mast bottom is equipped with a first and a second steel sliding sleeve for linear sliding of the respective steel connecting rods. With this structure, the connecting rods can only extend and retract linearly, resulting in better guidance and alignment of the steel brush with the auger rod. The steel connecting rods and steel sliding sleeves also enhance strength.

[0013] Furthermore, both ends of the steel actuating rod are hinged to the other ends of the two steel connecting rods. With the above structure, due to the guiding effect of the first and second sliding sleeves, even if the actuating rod is hinged to the end of its respective connecting rod, the steel brush will not deviate. On the contrary, the linear sliding of the actuating rod driving the connecting rod is more flexible, stable, and reliable.

[0014] Furthermore, the steel brush is composed of multiple bundles of steel strands: each row contains multiple bundles of steel strands of equal length, and there are multiple rows of steel strands. Each row of steel strands is clamped by two steel connecting plates. These connecting plates have multiple second bolt holes, through which multiple corresponding second bolts pass, and multiple corresponding nuts are tightened onto their respective second bolts to secure the multiple rows of steel strands. The steel brush is fixed to one end of its respective connecting rod via a connecting plate in the middle. With this specific structure, the steel brush has a wider and thicker scraping area, higher rigidity and strength, and a longer service life.

[0015] Furthermore, the mud-cleaning device for the auger drill rod of this piling machine also includes a remote control for starting and stopping the hydraulic cylinder, allowing the mud-cleaning device to be in either the state where the first steel brush is against the first auger drill rod for scraping mud, or the second steel brush is against the second auger drill rod for scraping mud, or both steel brushes are detached from their respective auger drill rods. With this structure, the mud-scraping operator can perform remote control operation from a slightly longer distance, avoiding potential safety hazards during mud-scraping operations.

[0016] Furthermore, the lower end of the mast is equipped with a radial limiting ring that allows each auger drill rod to pass straight through while also providing radial restraint. With this structure, because the radial limiting ring guides the straight-line lifting and lowering of the auger drill rod and provides radial restraint, even if the steel brush applies a certain radial force during the mud scraping process, it will not affect the smooth spiral ascent of the auger drill rod during the extraction process, ensuring stability and reliability in both the extraction and mud scraping processes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the preferred embodiment of the mud-cleaning device for the spiral drill rod of the piling machine when it is in a non-working state.

[0018] Figure 2 This is a schematic diagram of the preferred embodiment of the mud-cleaning device for the spiral drill rod of the piling machine in the working state of scraping mud from the first spiral drill rod.

[0019] Figure 3 This is a schematic diagram of the preferred embodiment of the mud-cleaning device for the spiral drill rod of the piling machine in the working state of scraping mud on the second spiral drill rod.

[0020] Figure 4 This is a schematic diagram of the preferred embodiment of the mud-cleaning device for the spiral drill rod of the piling machine when it is installed at the bottom of the mast.

[0021] Figure 5 yes Figure 4 A schematic diagram of a preferred embodiment of the mud-cleaning device for the spiral drill rod of a pile driver.

[0022] Figure 6 yes Figure 5 A magnified structural diagram of A in the middle.

[0023] As shown in the figure:

[0024] 1. Mast; 11. Bottom plate; 121. First radial limiting ring; 122. Second radial limiting ring;

[0025] 21. First steel brush; 211. First connecting plate; 22. Second steel brush; 221. Second connecting plate; 23. Steel strand; 24. Second bolt through hole;

[0026] 31. First spiral drill pipe; 311. First outer peripheral wall; 32. Second spiral drill pipe; 321. Second outer peripheral wall;

[0027] 41. First connecting rod; 42. Second connecting rod;

[0028] 5. Actuating lever, 51. First bolt through hole;

[0029] 6. Hydraulic cylinder; 61. Piston rod; 611. Free end; 62. Housing; 63. Oil pipe;

[0030] 71. First bolt; 72. First nut; 73. Second bolt; 74. Second nut; 75. Circular sleeve;

[0031] 81. First hinge pin; 811. First cotter pin; 82. Second hinge pin; 821. Second cotter pin; 83. Third hinge pin;

[0032] 91. First sliding sleeve; 92. Second sliding sleeve. Detailed Implementation

[0033] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions of specific embodiments are intended to aid in understanding this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various specific embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown.

[0035] A preferred embodiment of the mud-cleaning device for the spiral drill rod of this utility model includes two steel brushes for cleaning their respective spiral drill rods, such as a first steel brush 21 for cleaning the first spiral drill rod 31 and a second steel brush 22 for cleaning the second spiral drill rod 32. During cleaning, each steel brush abuts against the outer peripheral wall of the spiral drill rod within the spiral groove, which spirals upwards in the opposite direction to the rotation, such as the first outer peripheral wall 311 within the spiral groove of the first spiral drill rod 31 and the second outer peripheral wall 321 within the spiral groove of the second spiral drill rod 32. Each steel brush is fixed to one end of its respective connecting rod, and the other end of each connecting rod is connected to one end of a lever 5 hinged at a midpoint to the pile driver mast 1. Each steel brush is fixed to one end of its respective connecting rod via a connecting plate in the middle. For example, the first steel brush 21 is fixed to one end of the first connecting rod 41 via the first connecting plate 211, or welded to the middle steel connecting plate 211 of the three steel connecting plates 211. The other end of the first connecting rod 41 is connected to one end of the actuating rod 5, which is hinged at a midpoint to the mast 1 of the pile driver. Similarly, the second steel brush 22 is fixed to one end of the second connecting rod 42 via the second connecting plate 221, or welded to the middle steel connecting plate 221 of the three steel connecting plates 221. The other end of the second connecting rod 42 is connected to the other end of the actuating rod 5, which is hinged at a midpoint to the mast 1 of the pile driver. A preferred embodiment of the mud-cleaning device for the spiral drill rod of this utility model further includes a hydraulic cylinder 6 connected to the mast 1 of the pile driver. The hydraulic cylinder 6 has a piston rod 61 whose free end 611, during extension and retraction, drives a lever 5 via a connecting rod, such as the first connecting rod 41, to scrape mud from the first spiral drill rod 31 with a first steel brush 21, or via a second connecting rod 42 to scrape mud from the second spiral drill rod 32, or via the first connecting rod 41 and the second connecting rod 42, to disengage both steel brushes, such as the first steel brush 21 and the second steel brush 22, from their respective spiral drill rods, i.e., the first spiral drill rod 31 and the second spiral drill rod 32. The free end 611 of the piston rod 61 is hinged to one end of the lever 5. The hydraulic cylinder 6 is also called a hydraulic cylinder. It is easy to understand that the hydraulic cylinder 6 includes oil pipes 63, one for oil inlet and the other for oil outlet, both of which are connected to an oil tank via an oil pump.

[0036] The specific structure of the actuating lever 5 hinged to the mast 1 can be as follows: a bolt, such as the first bolt 71, is screwed and fixed to the bottom plate 11 of the mast 1. The steel actuating lever 5 has a bolt through hole, such as the first bolt through hole 51, which rotatably fits the first bolt 71. Two nuts, such as the first nut 72, can be used: one nut 72 for axial limiting, and the other nut 72 for securing the axially limiting nut 72. Alternatively, a hinge pin welded to the bottom plate of the mast can be used, with a cotter pin at the free end for axial limiting.

[0037] The specific structure of the piston rod 61 of the hydraulic cylinder 6 being hinged to the mast 1 can be as follows: Figure 1, Figure 2 and Figure 3 As shown, the free end 611 of the piston rod 61 of the hydraulic cylinder 6 is hinged to the right of the midpoint of the actuating rod 5. Alternatively, it can be hinged to the left of the midpoint (not shown in the figure). The specific structure can be as follows: the actuating rod 5 can be a circular rod or a circular tube. A circular sleeve 75 with a notch can be fitted onto the actuating rod 5. At the notch or opening, there can be two connecting blocks extending towards the free end 611 of the piston rod 61. Each connecting block has a hinge pin through hole. The free end 611 of the piston rod 61 of the hydraulic cylinder 6 has a flat connecting block with a hinge pin through hole. A hinge pin, such as the first hinge pin 81, passes through the three coaxial hinge pin through holes and is axially limited. One end of the hinge pin is a large head or shoulder, and the other end is axially limited by a cotter pin, such as the first cotter pin 811. Figure 1 , Figure 2 and Figure 3 As shown, the tail end of the hydraulic cylinder 6, away from the free end 611 of the piston rod 61, can be hinged to the bottom end of the mast 1, such as the bottom end plate 11, via a hinge pin, such as the third hinge pin 83. Alternatively, the housing 62 of the hydraulic cylinder 6 can be directly fixed, such as by using clamps and bolts, or welded to the bottom end of the mast, such as the bottom end plate. Because the free end of the piston rod drives the actuating rod 5 to rotate around the midpoint hinge pin, such as the first bolt 71, the hinged or fixed housing 62 of the rear end of the hydraulic cylinder 6 has little impact on the flexibility and reliability of the free end of the piston rod.

[0038] The mast 1 has a bottom plate 11 with a first steel sliding sleeve 91 and a second steel sliding sleeve 92 for linear sliding of their respective steel connecting rods. Specifically, the first sliding sleeve 91 allows the first connecting rod 41 to slide linearly, and the second sliding sleeve 92 allows the second connecting rod 42 to slide linearly. The first sliding sleeve 91 and the second sliding sleeve 92 can be cylindrical sliding sleeves fixed to the bottom of the mast, or they can be... Figure 4 The U-shaped sliding sleeves shown, which are fixed at both ends to the bottom plate 11 of the mast 1, only need to serve as linear guides.

[0039] The steel actuating lever 5 is hinged at both ends to the other ends of two steel connecting rods, such as the first steel connecting rod 41 and the second steel connecting rod 42. (If using...) Figure 5The hinge pin shown is a second hinge pin 82. One end of the second hinge pin 82 can be a shoulder or a large end, and the other end can be a cotter pin, such as a second cotter pin 821 for positioning. With the first sliding sleeve 91 and the second sliding sleeve 92 provided, this hinge connection has a positive effect on the flexibility, stability, and reliability of this sludge removal device. Of course, if no sliding sleeve is provided, such as without the first and second sliding sleeves, fixing both ends of the actuating rod to the other ends of the first and second connecting rods (e.g., by welding) is also feasible, but the flexibility, stability, and reliability are slightly inferior, especially since the joint lacks adjustment functionality. Therefore, a hinge connection is preferred here. A hinge pin can also be called a pivot pin.

[0040] The steel brush is composed of multiple bundles of steel strands, specifically, both the first steel brush 21 and the second steel brush 22 are composed of multiple bundles of steel strands 23: each row contains multiple bundles of steel strands 23 of equal length, and there are multiple rows of steel strands 23. Each row of steel strands 23 is clamped by two steel connecting plates. See also Figure 5 The system consists of multiple steel connecting plates, such as three steel connecting plates (three first connecting plates 211 and three second connecting plates 221), clamping multiple rows of steel strands (each steel brush having two rows of steel strands). Each plate has multiple second bolt holes 24, through which multiple corresponding second bolts 73 pass. Multiple corresponding nuts, such as second nuts 74, are tightened onto their respective second bolts 73, securing the multiple rows of steel strands 23. It is easy to understand that each bundle of steel strands 23 is formed by multiple interlocking steel wires to create a steel column, and each row of multiple bundles of steel strands 23 can be understood as multiple steel columns.

[0041] A preferred embodiment of the mud-cleaning device for the auger drill rod of this utility model further includes a remote-controlled hydraulic cylinder 6 for starting and stopping, allowing the mud-cleaning device to be in either the state where the first steel brush 21 is against the first auger drill rod 31 scraping mud, or the second steel brush 22 is against the second auger drill rod 32 scraping mud, or both steel brushes, i.e., the first steel brush 21 and the second steel brush 22, are disengaged from their respective auger drill rods. It is easy to understand that the piling machine itself has a main controller, and the oil pump, which controls the oil cylinder 6 to move oil in and out via two oil pipes 63 to extend, retract, or stop the piston rod 61, is electrically connected to the main controller. The remote-controlled transmitter and receiver are existing technologies, such as commercially available remote-controlled transmitters and compatible remote-controlled receivers.

[0042] The lower end of the mast 1 is provided with steel radial limiting rings for the straight passage and radial limitation of each auger drill rod, namely a steel first radial limiting ring 121 for the straight passage and radial limitation of the first auger drill rod 31, and a steel second radial limiting ring 122 for the straight passage and radial limitation of the second auger drill rod 32.

[0043] The mast, also known as a column or tower, is easily understood. For piling rigs or drilling rigs with dual power heads and dual augers, the mast is usually fixed to one side of the base, either by clamping it with a clamp and then welding it in, or by direct welding. Therefore, the cleaning device for the augers on this piling rig can be fixed to the suspended bottom plate 11. Alternatively, the entire bottom of the mast may be fixed, either by welding or by bolting it to the top surface of the piling rig base. This does not affect the installation of the cleaning device for the augers, because if it is a truss-type tower, there are many positions for installing the cleaning device between the truss members at the bottom of the tower. Even if the mast is a tubular column directly fixed to the base at the bottom, the bottom of the mast can have a horizontal opening for installing the cleaning device, or it can be installed via a bracket on the side of the mast facing the two augers.

[0044] Components, structures, or quantities not marked above are not shown in the drawings, and some components are not marked in the drawings. The drawings are for illustrative purposes only. In case of any inconsistency between the drawings and the text description, or between the drawings themselves, the text description shall prevail.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mud cleaning device for a pile driver auger, characterized by: The device comprises two steel brushes for cleaning the respective auger rods, the steel brushes being fixed to one end of the respective connecting rods, the other end of the respective connecting rods being connected to one end of the poking rod on the pile driver mast via a hinge at the midpoint; the device further comprises an oil cylinder connected to the pile driver mast, the oil cylinder having a piston rod with a free end to drive the poking rod to push the first steel brush against the first auger rod to scrape mud, or to push the second steel brush against the second auger rod to scrape mud, or to make both steel brushes disengage from the respective auger rods.

2. A piling machine screw auger de-mudding device according to claim 1 wherein: A first bolt is screwed and fixed to the bottom end plate of the mast, and the steel poking rod has a first bolt through hole in the middle of the length of the rod to rotate and fit the bolt.

3. A piling machine screw auger de-mudding device according to claim 2, characterised in that: The free end of the piston rod of the oil cylinder is hingedly connected to the midpoint of the poking rod.

4. The piling machine auger rod mud cleaning device according to claim 1, characterized in that: The bottom end of the mast is provided with a steel first sliding sleeve and a steel second sliding sleeve for the linear sliding of the respective steel connecting rods.

5. A piling machine screw auger de-mudding device according to claim 4, characterised in that: The two ends of the steel poking rod are hingedly connected to the other ends of the two steel connecting rods.

6. The piling machine auger rod mud cleaning device according to claim 1, characterized in that: The steel brush is composed of multiple steel strands: each row has multiple steel strands of equal length, and there are multiple rows of steel strands; each row of steel strands is clamped by two steel connecting plates; the multiple steel connecting plates clamping the multiple rows of steel strands have multiple second bolt through holes; multiple corresponding second bolts pass through the respective second bolt through holes; and multiple corresponding nuts are screwed onto the respective second bolts and tightly fix the multiple rows of steel strands; the steel brush is fixed to one end of the respective connecting rods via a connecting plate in the middle.

7. The piling machine auger rod mud cleaning device according to claim 1, characterized in that: The device further comprises a remote control transmission and receiving device to control the start and stop of the oil cylinder to make the mud cleaning device be in the state of the first steel brush pushing against the first auger rod to scrape mud, or the second steel brush pushing against the second auger rod to scrape mud, or both steel brushes disengaging from the respective auger rods.

8. The mud cleaning device of the piling machine auger rod according to claim 1, characterized in that: The lower end of the mast is provided with a steel radial limiting ring for the linear passing and radial limiting of the respective auger rods.

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