Size-adjustable square pile drill bit

Abstract

The size-adjustable square pile drill bit comprises a connecting base, two side plates are symmetrically and fixedly installed at the bottom of the connecting base, two fixing holes are symmetrically formed in each side plate, the same rotating pin is arranged in the two corresponding fixing holes in the two side plates, and a box body is rotationally installed on the rotating pin; the square pile drill bit comprises two first box bodies, the box bodies are provided with adjusting mechanisms, the adjusting mechanisms are used for adjusting the angle between the two first box bodies, power mechanisms are arranged in the box bodies, cutting wheels are rotationally installed on the two sides of the lower portion of each box body, and the power mechanisms are used for providing power for rotation of the cutting wheels. The working size of the drill bit can be flexibly adjusted, and the construction requirements of different pile diameters are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drilling engineering, especially a size-adjustable square pile drill bit. BACKGROUND

[0002] In the field of building construction, pile foundation as a common form of foundation is widely used in various buildings, bridges, towers and other engineering. Square pile has been widely used in many engineering scenarios due to its large lateral bearing capacity, good uplift performance and spatial layout advantages. However, the existing square pile construction technology and related equipment still have some problems to be solved, especially the obvious deficiency of square pile drill bit in size adjustment.

[0003] At present, most of the square pile drill bits on the market are of fixed size structure design. In actual construction process, different engineering projects have different size requirements for square piles, which depends on many factors such as the type of building, load size, geological conditions and so on. For example, in the foundation construction of high-rise buildings, due to the large load of the upper structure, larger size square pile is needed to provide sufficient bearing capacity; while in some small buildings or temporary engineering, smaller size square pile is more suitable.

[0004] The traditional fixed size square pile drill bit cannot be flexibly adjusted in size according to the actual construction demand. In order to meet the construction requirements of square piles of different sizes, construction units have to be equipped with drill bits of different specifications, which not only increases the equipment procurement cost, but also needs to occupy a large amount of storage space for storing these drill bits. In addition, frequent replacement of drill bits will also lead to low construction efficiency and increase the time cost of construction. Therefore, it needs to be improved. SUMMARY

[0005] In view of the deficiencies of the prior art, the utility model provides a size-adjustable square pile drill bit, which can flexibly adjust the working size of the drill bit and meet the construction requirements of different pile diameters.

[0006] The technical scheme of the utility model is as follows:

[0007] A size-adjustable square pile drill bit, comprising a connecting seat, two side plates are fixedly installed on the bottom of the connecting seat in symmetry, two fixed holes are symmetrically arranged on the side plates, a same rotating pin is arranged in the two corresponding fixed holes on the two side plates, and a box body is rotatably installed on the rotating pin;

[0008] An adjusting mechanism is arranged on the box body, the adjusting mechanism is used for adjusting the angle between the two first box bodies, a power mechanism is arranged in the box body, cutting wheels are rotatably installed on the two sides below the box body, and the power mechanism is used for providing power for the rotation of the cutting wheels;

[0009] The adjusting mechanism comprises a plurality of adjusting plate groups and at least two fixing pins, each adjusting plate group comprises two identical adjusting plates, the two adjusting plates are symmetrically arranged on two sides of the box body and below the side plates, two sides of the adjusting plates are respectively detachably connected with the two box bodies, widths of transverse center lines of the adjusting plates in different adjusting plate groups are different, the fixing pin is arranged on one box body, both ends of the fixing pin extend out of the box body and pass through the two identical adjusting plates, the box body is fixedly connected with the fixing pin, and end portions of the fixing pin are detachably connected with the adjusting plates.

[0010] Preferably, at least one hole is arranged on each side of the adjusting plate, and both ends of the fixing pin pass through the holes of the adjusting plates and are detachably connected with the adjusting plates.

[0011] Preferably, the adjusting plate is in a strip shape or a trapezoidal shape.

[0012] Preferably, the box body comprises a first box body and a second box body communicating with a lower opening of the first box body, the power mechanism comprises a hydraulic motor fixedly arranged in the first box body, a first gear fixedly arranged on an output shaft of the hydraulic motor, a rotating shaft rotatably arranged in the first box body, a second gear and a third gear fixedly arranged on the rotating shaft, the second gear being engaged with the first gear, and a first fixed roller, a second fixed roller and a third fixed roller rotatably arranged on the second box body, both ends of the third fixed roller extending out of the second box body, the first fixed roller being fixedly sleeved with a fourth gear, the second fixed roller being fixedly sleeved with a fifth gear, the fourth gear being engaged with the third gear and the fifth gear, the outer side of the third fixed roller being fixedly sleeved with a sixth gear, the fifth gear being engaged with the sixth gear, and the cutting wheel being fixedly sleeved on the outer side of the second fixed roller.

[0013] Preferably, the diameter of the first gear is smaller than the diameter of the second gear, and the diameter of the third gear is smaller than the diameter of the second gear.

[0014] Preferably, the diameters of the fourth gear, the fifth gear and the sixth gear are the same.

[0015] Preferably, a plurality of cutting heads are arranged on the cutting wheel.

[0016] Preferably, the hydraulic motor is a five-star motor.

[0017] Preferably, a square connecting head is fixedly arranged on the top of the connecting seat, four reinforcing plates in annular distribution are fixedly arranged on the side surface of the square connecting head, and the bottom of the reinforcing plate is fixedly connected with the top of the connecting seat.

[0018] Compared with the prior art, the adjusting mechanism has the following advantages:

[0019] The utility model discloses a adjustable size's square stake drill head through the adjusting mechanism change the angle between two box bodies, can flexibly adjust the working size of drill bit, satisfy the construction demand of different stake diameter. This means that the construction unit need not be equipped with multiple fixed size's drill bit for different size's square stake, reduced equipment procurement cost and storage space demand.

[0020] The utility model discloses a set up a plurality of width different adjusting plate group, and with the two ends of adjusting plate respectively with two box bodies detachable link to when needing to adjust the angle between two box bodies, can use a group of adjusting plate to replace another group of adjusting plate to can replace different adjusting plate group according to need to can adjust the angle between two box bodies, reach the purpose of adjusting the distance between two box bodies on cutting wheel. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the utility model embodiment or prior art in the technical scheme, below will to the embodiment or prior art description needed to use the drawing briefly introduce, obviously, below description's drawing only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0022] Figure 1 It is the perspective view of the utility model;

[0023] Figure 2 It is the perspective view of the utility model after removing the box body;

[0024] Figure 3 It is another angle perspective view of the utility model after removing the box body;

[0025] Figure 4 It is the top view of the utility model;

[0026] Figure 5 It is the section view along Figure 4 C-C line.

[0027] Drawing mark: 1, connecting seat;11, square connecting head;12, reinforcing plate;

[0028] 2, side plate;

[0029] 3, rotating pin;

[0030] 4, box body;41, first box body;42, second box body;

[0031] 5, adjusting mechanism; 51, fixing pin; 52, adjusting plate group; 521, adjusting plate;

[0032] 6, power mechanism; 60, hydraulic motor; 61, first gear; 62, rotating shaft; 63, second gear; 64, third gear; 65, first fixed roller; 66, second fixed roller; 67, third fixed roller; 68, fourth gear; 69, fifth gear; 690, sixth gear;

[0033] 7, cutting wheel; 71, cutting head. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", "fourth" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] Referring to Figures 1 to 5The utility model discloses a size adjustable square pile drill bit, including connecting seat 1, the bottom symmetry fixed mounting of connecting seat 1 has two side plates 2, two fixed holes (not identified in the drawing) are equipped on the symmetry of side plate 2, the same rotating pin 3 is equipped in two corresponding fixed holes on two side plates 2, rotating pin 3 is rotatably installed one box 4, and the adjusting mechanism 5 is set up on the box 4, and the adjusting mechanism 5 is used for adjusting the angle between two boxes 4, and power mechanism 6 is equipped in the box 4, and the cutting wheel 7 is rotatably installed on the both sides below the box 4, and power mechanism 6 is used for providing power for the rotation of cutting wheel 7;

[0038] Among them, the adjusting mechanism includes a plurality of adjusting plate groups 52 (only one adjusting plate group is shown in the drawing) and at least two fixed pins 51, each adjusting plate group 52 includes two same adjusting plates 521, the two adjusting plates 521 are symmetrically arranged on the two sides of the box 4 and are arranged below the side plate 2, the left and right sides of the adjusting plate 521 are detachably connected with the two boxes 4 respectively, the widths of the transverse center lines of the adjusting plates in different adjusting plate groups 5 are different, the fixed pin 51 is arranged on one box 4, the two ends of the fixed pin 51 extend out of the box 4 and pass through the two same adjusting plates 521 respectively, the box 4 is fixedly connected with the fixed pin 51, and the end of the fixed pin 51 is detachably connected with the adjusting plate 521.

[0039] It should be noted that the transverse center line of the adjusting plate 521 in the embodiment refers to the connecting line of the midpoints on the left and right sides of the adjusting plate 521.

[0040] The embodiment can change the angle between the two boxes 4 by arranging the adjusting mechanism 5, so that the distance between the cutting wheels 7 on the two boxes 4 can be adjusted, so that the size of the square pile can be adjusted according to the size of the square pile. In actual engineering, different building projects have different size requirements for square piles. The size adjustable square pile drill bit can flexibly adjust the working size of the drill bit by adjusting the angle between the two boxes 4 through the adjusting mechanism 5, so as to meet the construction requirements of different pile diameters. This means that the construction unit does not need to provide multiple fixed size drill bits for square piles of different sizes, which reduces the equipment procurement cost and storage space requirement.

[0041] In the embodiment, a plurality of adjusting plate groups 52 are arranged, the widths of the transverse center lines of the adjusting plates 521 in the adjusting plate groups 52 are different, and the two ends of the adjusting plates 521 are detachably connected with the two boxes 4 respectively, so that when the angle between the two boxes 4 needs to be adjusted, one adjusting plate group 52 can be replaced with another adjusting plate group 52, so that the adjusting plate group 52 can be replaced as needed, so that the angle between the two boxes 4 can be adjusted, and the distance between the cutting wheels 7 on the two boxes 4 can be adjusted.

[0042] Specifically, at least one hole (not shown in the figure) is arranged on each side of the adjusting plate 521, and the two ends of the fixing pin 51 pass through the holes of the adjusting plate 521 to be detachably connected with the adjusting plate 521. The shape of the adjusting plate 521 can be a long strip or a trapezoid. When the shape of the adjusting plate is a long strip, one hole is arranged on each end of the long strip-shaped adjusting plate, and there are two fixing pins 51 in the adjusting mechanism 5. When the shape of the adjusting plate is a trapezoid, at least two holes are arranged on one side of the trapezoidal adjusting plate 521. The adjusting plate 521 in this embodiment is a trapezoidal adjusting plate, two holes (not shown in the figure) are arranged on one side of the trapezoidal adjusting plate 521, and there are four fixing pins 51 in the adjusting mechanism 5. Therefore, when the holes of the trapezoidal adjusting plate 521 are sleeved on the ends of the fixing pins 51, the angle between the two box bodies 4 can be more stably fixed.

[0043] Further, the box body 4 includes a first box body 41 and a second box body 42 communicating with the lower opening of the first box body 41. The power mechanism 6 includes a hydraulic motor 60 fixedly installed in the first box body 41. A first gear 61 is fixedly installed on the output shaft of the hydraulic motor 60. A rotating shaft 62 is rotatably installed in the first box body 41. A second gear 63 and a third gear 64 are fixedly sleeved on the rotating shaft 62. The second gear 63 is engaged with the first gear 61. A first fixed roller 65 and a second fixed roller 66 are rotatably installed in the second box body 42. A third fixed roller 67 is also rotatably installed on the second box body 42. The two ends of the third fixed roller 67 respectively extend to the outside of the side surface of the second box body 42. The first fixed roller 65 is fixedly sleeved with a fourth gear 68. The second fixed roller 66 is fixedly sleeved with a fifth gear 69. The fourth gear 68 is engaged with the third gear 64 and the fifth gear 69, respectively. The sixth gear 690 is fixedly sleeved on the upper end of the third fixed roller 67. The fifth gear 69 and the sixth gear 690 are engaged with each other. The cutting wheel 7 is fixedly sleeved on the outside of the third fixed roller 67.

[0044] In this embodiment, the first box body 41 and the second box body 42 are in communication with each other. The power source (such as the hydraulic motor 60) is arranged in the first box body 41, and most of the transmission components are arranged in the second box body 42. Such hierarchical design can make full use of the box space, make the overall structure more compact, and achieve the installation of multiple functional components in a limited space. The design of the first box body 41 and the second box body 42 is helpful for modular assembly and maintenance. If a component fails, the first box body 41 or the second box body 42 can be disassembled and repaired respectively, without affecting other parts, thereby reducing the difficulty and cost of maintenance. At the same time, the first gear 61, the second gear 63, the third gear 64, the fourth gear 68, the fifth gear 69, and the sixth gear 690 form a multi-stage gear transmission system. Multi-stage transmission can smoothly transmit power, effectively reduce the load borne by a single gear, and improve the service life of the gear.

[0045] Further, the diameter of the first gear 61 is smaller than that of the second gear 63, and the diameter of the third gear 64 is smaller than that of the second gear 63. In this embodiment, the multi-stage speed reduction transmission system is formed by the first gear 61 with a smaller diameter than the second gear 63, and the third gear 64 with a smaller diameter than the second gear 63. When the hydraulic motor 60 drives the first gear 61 to rotate, the speed is reduced and the torque is increased through the meshing with the second gear 63. Then, the third gear 64 continues to drive the subsequent gears, further realizing torque amplification. This greatly increases the torque transmitted to the cutting wheel 7, which can better meet the drilling requirements under different geological conditions, especially in hard strata, and can provide sufficient power to break rocks and soil, thereby improving drilling efficiency.

[0046] Further, the diameters of the fourth gear 68, the fifth gear 69, and the sixth gear 690 are the same. When gears with the same diameter mesh, they have better contact area and more uniform load distribution, which helps to reduce wear and friction, thereby improving transmission efficiency.

[0047] Further, each cutting wheel 7 is provided with a plurality of cutting heads 71 (not all shown in the figure). In this embodiment, the plurality of cutting heads 71 on each cutting wheel 7 are uniformly distributed at a specific angle, forming a multi-blade cooperative cutting effect. When the cutting wheel 7 rotates, the plurality of cutting heads 71 cut into the stratum in turn, continuously breaking the rock and soil, thereby significantly improving drilling efficiency.

[0048] Further, the hydraulic motor 60 is a five-star motor. In this embodiment, the five-star motor is selected because it has a radial piston structure and can achieve a larger torque output. In the process of square pile drilling, different geological conditions such as hard rock strata and dense soil layers require strong torque to drive the cutting wheel to break and drill. For example, a common five-star motor can have an output torque that is 30%-50% higher than that of an ordinary hydraulic motor, which can easily cope with complex geology and ensure smooth drilling work.

[0049] Further, the top of the connecting seat 1 is fixedly installed with a square connector 11, which can be conveniently and stably connected with the drilling machine on the market. The side surface of the square connector 11 is fixedly installed with four reinforcing plates 12, the bottom of which is fixedly connected with the top of the connecting seat 1, thereby effectively dispersing the external force borne by the connector 11 during use, reducing the risk of deformation or loosening of the connection part due to uneven stress, thereby significantly enhancing the stability and reliability of the entire connection structure.

[0050] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable-size square pile drill bit, characterized in that, The device includes a connecting base, on the bottom of which two side plates are symmetrically fixedly installed. Each side plate has two symmetrical fixing holes, and the same rotating pin is provided in the two corresponding fixing holes on the two side plates. A housing is rotatably mounted on the rotating pin. The housing is equipped with an adjustment mechanism for adjusting the angle between the two housings. The housing is equipped with a power mechanism, and cutting wheels are rotatably mounted on both sides below the housing. The power mechanism is used to provide power for the rotation of the cutting wheels. The adjustment mechanism includes multiple adjustment plate groups and at least two fixing pins. Each adjustment plate group includes two identical adjustment plates, which are symmetrically arranged on both sides of the housing and located below the side plates. The left and right sides of the adjustment plates are detachably connected to the two housings respectively. The width of the transverse centerline of the adjustment plates in different adjustment plate groups is different. The fixing pin passes through one housing, with both ends of the fixing pin extending out of the housing and passing through the two identical adjustment plates respectively. The housing is fixedly connected to the fixing pin, and the end of the fixing pin is detachably connected to the adjustment plate.

2. The adjustable-size square pile drill bit according to claim 1, characterized in that, At least one hole is provided on each side of the adjusting plate, and the two ends of the fixing pin pass through the holes of the adjusting plate and are detachably connected to the adjusting plate.

3. The adjustable-size square pile drill bit according to claim 2, characterized in that, The shape of the adjustment plate is either elongated or trapezoidal.

4. The adjustable-size square pile drill bit according to claim 1, characterized in that, The housing includes a first housing and a second housing communicating with the lower opening of the first housing. The power mechanism includes a hydraulic motor fixedly installed in the first housing, a first gear fixedly installed on the output shaft of the hydraulic motor, a rotating shaft rotatably installed in the first housing, a second gear and a third gear fixedly sleeved on the rotating shaft, the second gear meshing with the first gear, a first fixed roller and a second fixed roller rotatably installed in the second housing, a third fixed roller rotatably installed on the second housing, both ends of the third fixed roller extending to the outside of the side of the second housing, a fourth gear fixedly sleeved on the first fixed roller, a fifth gear fixedly sleeved on the second fixed roller, the fourth gear meshing with the third gear and the fifth gear respectively, a sixth gear fixedly sleeved on the upper part of the third fixed roller, the fifth gear and the sixth gear meshing, and a cutting wheel fixedly sleeved on the outside of the second fixed roller.

5. The adjustable-size square pile drill bit according to claim 4, characterized in that, The diameter of the first gear is smaller than the diameter of the second gear, and the diameter of the third gear is smaller than the diameter of the second gear.

6. The adjustable-size square pile drill bit according to claim 4, characterized in that, The fourth, fifth, and sixth gears have the same diameter.

7. The adjustable-size square pile drill bit according to claim 1, characterized in that, The cutting wheel is equipped with multiple cutting heads.

8. The adjustable-size square pile drill bit according to claim 4, characterized in that, The hydraulic motor is a five-star motor.

9. The adjustable-size square pile drill bit according to claim 1, characterized in that, A square connector is fixedly installed on the top of the connector, and four reinforcing plates are fixedly installed on the side of the square connector. The bottom of the reinforcing plates is fixedly connected to the top of the connector.

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