CN220353815U - Hydraulic square pile drill bit - Google Patents
Hydraulic square pile drill bit Download PDFInfo
- Publication number
- CN220353815U CN220353815U CN202321250636.2U CN202321250636U CN220353815U CN 220353815 U CN220353815 U CN 220353815U CN 202321250636 U CN202321250636 U CN 202321250636U CN 220353815 U CN220353815 U CN 220353815U
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- Prior art keywords
- hydraulic
- digging
- drill bit
- box body
- square pile
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- 238000005553 drilling Methods 0.000 claims abstract description 25
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 239000003921 oil Substances 0.000 claims description 10
- 238000009412 basement excavation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 8
- 239000002689 soil Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model belongs to the technical field of drilling equipment, and particularly relates to a hydraulic square pile drill bit. The specific technical scheme is as follows: the device comprises a supporting box body, wherein digging parts are arranged on four circumferential side walls of the supporting box body, and the digging parts on two adjacent side walls are vertically tangent at 90 degrees; the excavating component is driven by a hydraulic control system, the hydraulic control system comprises a flow dividing valve group, a one-way valve and a reversing valve, and the reversing valve, the one-way valve and the flow dividing valve group are sequentially arranged in the flow direction of hydraulic oil. Through set up the excavation part on four circumference lateral walls of supporting the box, guaranteed square stake hole one shot forming's effect, provide work efficiency.
Description
Technical Field
The utility model belongs to the technical field of drilling equipment, and particularly relates to a hydraulic square pile drill bit.
Background
In the existing square pile construction method and technology, the common method is to pre-drill holes by a round drill bit, and process the square pile construction operation into a quincuncial pile-like shape. However, the round drill cannot be formed into a standard rectangular cube, and the round drill cannot be formed into a portion to be trimmed at four corners. For this case, it is common practice to use a developed square pile drill bit for corner trimming to obtain a standard square hole. The construction method has the problems of low construction efficiency and low construction strength.
If the high-strength square pile drill bit for forming the standard square hole through one-time processing is provided, the square hole is formed directly through construction operation of a rotary drilling rig, cast-in-situ square pile construction is efficiently carried out, the construction efficiency is effectively improved, and the high-strength square pile drill bit has huge industrial application value.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a hydraulic square pile drill bit.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: the utility model provides a hydraulic pressure square pile drill bit, includes the supporting box body, all be provided with the excavation part on four circumference lateral walls of supporting box body, the excavation part on the adjacent both sides wall is 90 perpendicular tangent, the excavation part is driven by hydraulic control system, hydraulic control system includes shunt valve group, check valve and switching-over valve to hydraulic oil flow direction sets gradually switching-over valve, check valve and shunt valve group.
Preferably: the two side walls of the supporting box body are symmetrically provided with first digging parts, and the other two side walls of the supporting box body are symmetrically provided with second digging parts; the first digging component and the second digging component respectively comprise a first digging wheel body and a second digging wheel body, and a plurality of digging elements are arranged on the first digging wheel body and the second digging wheel body.
Preferably: and a cutting circle formed by the digging points of the digging elements on the first digging wheel body is tangent to the end surface, away from the supporting box body, of the adjacent second digging wheel body.
Preferably: the number of the first digging parts or the second digging parts positioned on the same side is more than or equal to two, and the end surfaces of the first digging wheel bodies or the second digging wheel bodies on the same side, which are far away from the supporting box body, are positioned on the same plane.
Preferably: the hydraulic oil flow direction is sequentially provided with an overflow valve, a reversing valve, a one-way valve and a flow dividing valve group.
Preferably: the reversing valve is an electromagnetic reversing valve.
Preferably: the support box body is provided with a connecting square head, and the connecting square head is connected with a power head of the rotary drilling rig.
Preferably: the one-way valve and the reversing valve are arranged on the power head of the rotary drilling rig; and/or the diverter valve group is arranged in the supporting box body.
Preferably: the hydraulic control system is connected with the excavating component through an excavator walking assembly, the excavator walking assembly comprises a hydraulic motor and a speed reducer, the speed reducer is connected with the hydraulic motor, and the hydraulic motor is connected with the shunt valve group through a connecting pipe.
Preferably: the excavator walking assembly is provided with a fixing plate and a rotary ring, the fixing plate is connected with the side wall of the supporting box body through bolts, and the excavating component is fixed with the rotary ring through bolts.
Compared with the prior art, the utility model has the following beneficial effects:
1. through set up the excavation part on four circumference lateral walls of supporting box body, the excavation part on the adjacent both sides wall is 90 perpendicular tangent, has guaranteed square hole one shot forming's effect, provides work efficiency. For square holes with different sizes, the external dimension of the supporting box body and the dimension of the digging component are only required to be correspondingly adjusted, and the size of the speed reducer is only required to be adjusted. Meanwhile, as the excavating components are arranged on four sides of the square pile drill bit box body, the cutting and positioning functions of the whole square pile drill bit on the inner wall of the square pile deep hole are realized when the end face of the excavating component is in cutting work, and the situation that the drilled square pile deep hole is inclined is effectively prevented.
2. The drill bit adopts hydraulic drive, and can rapidly perform square hole forming. The drill power is shared with a hydraulic oil source of a power head of the rotary drilling rig, the hydraulic motor is matched with the speed reducer to drive the excavating component, and the cutting force of the excavating component can be adjusted through the pressure regulating valve arranged on the rotary drilling rig, so that the rotary drilling rig can adapt to the hole excavating working conditions of various soil. Meanwhile, the hydraulic system comprises a flow dividing valve group, when each digging component encounters different hard soil conditions, the work of all the digging components can be ensured, and the phenomenon that the digging components are blocked when encountering the hard soil conditions is avoided, so that the square pile drill bit cannot continue to work is avoided.
Drawings
FIG. 1 is a perspective view of the overall structure of a hydraulic square pile drill bit of the present utility model;
FIG. 2 is a top view of the hydraulic square pile drill bit of the present utility model;
FIG. 3 is a front view of the hydraulic square pile drill bit of the present utility model;
FIG. 4 is a schematic cross-sectional view of section A-A of FIG. 3.
In the figure: the excavator comprises a supporting box body 1, a connecting square head 2, a first excavating wheel body 3, a second excavating wheel body 4, excavating elements 5, a sealing plate 6, an excavator traveling assembly 7 and a diverter valve group 8.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The technical means used in the examples are conventional means well known to those skilled in the art unless otherwise indicated.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 to 4, the utility model discloses a hydraulic square pile drill bit, which comprises a supporting box body 1, an excavating component and a hydraulic control system. Digging parts are arranged on four circumferential side walls of the supporting box body 1, and the digging parts on two adjacent side walls are vertically tangent at 90 degrees. Through setting up the excavation part on supporting box body 1 circumference lateral wall, can make square pile hole one shot forming, improve the operating efficiency of square pile excavation. Meanwhile, the end face of the excavating component has the cutting and positioning effects on the inner wall of the square pile deep hole of the whole square pile drill bit during cutting, and the situation that the drilled square pile deep hole is inclined is effectively prevented. The length of the square drill is smaller than the length and width of the square pile hole and is 50mm. During operation, the circular cutting pick sand-bailing drill bit is used for cutting 4 angular holes, and then the square pile drill bit is used.
Specifically, the four circumferential side walls of the supporting case 1 are provided with excavating component mounting stations for mounting excavating components. At least one first digging component is symmetrically arranged on two side walls of the supporting box body 1, at least one second digging component is symmetrically arranged on the other two side walls of the supporting box body 1, the first digging component and the second digging component respectively comprise a first digging wheel body 3 and a second digging wheel body 4, and a plurality of digging elements 5 are respectively arranged on the first digging wheel body 3 and the second digging wheel body 4. The lengths of the first digging wheel body 3 and the second digging wheel body 4 can be specifically set according to actual situation requirements. The first excavating wheel body 3 and the second excavating wheel body 4 are provided with sealing plates 6 at the ends far away from the supporting box body 1, so that soil and stones are prevented from entering the interior of the excavating wheel body.
It should be noted that, the adjacent first digging component and the second digging component are vertically tangent at 90 ° may be understood as: the cutting circle formed by the digging points of the digging elements 5 on the first digging wheel body 3 is tangent to the end surface of the adjacent second digging wheel body 4, which is far away from the supporting box body 1. When the number of the first digging elements or the second digging elements on the same side wall is two or more, it is also necessary to satisfy the condition: the end surfaces of the first digging wheel body 3 or the second digging wheel body 4 on the same side wall, which are far away from the supporting box body 1, are positioned on the same plane.
The digging elements 5 can be arranged on the first digging wheel body 3 and the second digging wheel body 4 in a regular way or in an irregular way. The adjacent first digging wheel bodies 3 and/or the second digging wheel bodies 4 are as close to each other as possible, but the digging elements 5 on the adjacent digging wheel bodies are not interfered with each other when working. The digging elements 5 may be bullet heads or other hard projections.
According to the preferred technical scheme, two first excavating components are symmetrically arranged on two side walls of the supporting box body 1, and one second excavating component is symmetrically arranged on the other two side walls of the supporting box body 1.
The supporting box body 1 is a framework of the whole square pile drill bit, the upper end face of the supporting box body is welded with the connecting square head 2, and the connecting square head 2 is connected with a power head of the rotary drilling rig to realize the operation, installation and fixation of the whole square pile drill bit.
The excavating component is driven by a hydraulic control system, the hydraulic control system comprises a flow dividing valve group 8, a one-way valve and a reversing valve, and the flow dividing valve group 8, the one-way valve and the reversing valve are connected through connecting pipes. The hydraulic oil flow control device is characterized by further comprising an overflow valve, wherein the overflow valve is connected with a high-pressure oil pipe of the rotary drilling rig, and then the overflow valve, the reversing valve, the one-way valve and the flow dividing valve group 8 are sequentially arranged in the flow direction of hydraulic oil. The high-pressure oil pipe of the rotary drilling rig is connected to the overflow valve of the square pile drill bit, and the high-pressure hydraulic oil sequentially passes through the reversing valve, the one-way valve and the flow dividing valve group 8 and then enters the traveling motor to drive the excavating component to rotate.
Specifically, the one-way valve is a one-way speed regulating valve. The reversing valve is an electromagnetic reversing valve.
And an oil inlet and an oil return port of the hydraulic control system are shared with a power head of the rotary drilling rig. The hydraulic source of the rotary drilling rig supplies high-pressure hydraulic oil to the power head, the high-pressure hydraulic oil enters the hydraulic control system from the oil inlet, and the hydraulic oil at the outlet of the hydraulic control system flows back to the hydraulic source of the rotary drilling rig through the oil return port. The hydraulic control one-way valve group and the reversing valve are arranged on the power head of the rotary drilling rig. The diverter valve group 8 is arranged in the supporting box body 1. Through setting up the check valve, can control hydraulic oil and follow the rotary drilling rig and flow to the valve block. By arranging the electromagnetic directional valve, the switching and the switching of the liquid can be realized. And controlling the rotation speed of the square pile drill bit by a power head control handle of the rotary drilling rig.
The hydraulic control system is connected with the excavating component through an excavator walking assembly 7, one end of the excavator walking assembly 7 is connected with the supporting box body 1, and the other end of the excavator walking assembly is connected with the excavating component. Specifically, a fixed plate and a rotary ring are arranged on the excavator walking assembly 7, the fixed plate is fixed on a side plate of the supporting box body 1 by bolts, and the excavating wheel body is fixed on the rotary ring of the excavator walking assembly 7 by bolts.
The excavator walking assembly 7 comprises a hydraulic motor and a speed reducer, wherein the speed reducer is connected with the hydraulic motor, and the hydraulic motor is connected with the flow dividing valve group 8 through a connecting pipe. The flow dividing valve group 8 equally divides the flow to each hydraulic motor so as to achieve the same driving flow of each hydraulic motor and ensure the rotation of each excavating component.
The supporting box body 1 is of a hollow structure, and a positioning spigot and a connecting screw hole are formed in the side wall of the supporting box body 1 and located at the position of the digging part installation station and used for installing the excavator walking assembly 7.
The execution driving part of the cutting type hydraulic square pile drill bit is an excavator walking assembly 7, the excavator walking assembly 7 comprises a speed reducer and a hydraulic motor, hydraulic oil required by the hydraulic motor on the excavator walking assembly is directly obtained by shunting a hydraulic system of the rotary drilling rig, and return oil of the hydraulic oil is directly returned to a hydraulic oil tank of the rotary drilling rig through a connecting pipe. When the hydraulic motor obtains high-pressure oil on the rotary drilling rig, the hydraulic motor outputs rotary motion, drives a speed reducer connected with the hydraulic motor to rotate and outputs rotary motion. The speed reducer is provided with a fixed end and a rotating end, and the rotating end can rotate relative to the fixed end. The rotary end of the speed reducer is directly connected with the digging component, so that the digging component has controllable rotary motion output.
The excavator walking assembly 7 is an input conversion node of the power of the whole hydraulic square pile drill bit and mainly comprises a hydraulic motor and a speed reducer. High-pressure oil is led out from the rotary drilling rig to a hydraulic oil inlet of a hydraulic motor on each traveling assembly, so that the hydraulic motor outputs rotary motion to drive a speed reducer connected with the hydraulic motor to rotate. The digging component is directly connected and installed at the connection spigot of the rotating end of the speed reducer, so that the rotation of the digging component is realized, and the cutting pile driving is realized.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications, variations, alterations, substitutions made by those skilled in the art to the technical solution of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.
Claims (10)
1. A hydraulic square pile drill bit is characterized in that: the hydraulic control system comprises a supporting box body (1), excavating parts are arranged on four circumferential side walls of the supporting box body (1), the excavating parts on two adjacent side walls are perpendicular and tangent at 90 degrees, the excavating parts are driven by the hydraulic control system, and the hydraulic control system comprises a flow dividing valve group (8), a one-way valve and a reversing valve, and the reversing valve, the one-way valve and the flow dividing valve group (8) are sequentially arranged in the flowing direction of hydraulic oil.
2. A hydraulic square pile drill bit according to claim 1, wherein: the two side walls of the supporting box body (1) are symmetrically provided with first digging components, and the other two side walls of the supporting box body (1) are symmetrically provided with second digging components; the first digging component and the second digging component respectively comprise a first digging wheel body (3) and a second digging wheel body (4), and a plurality of digging elements (5) are arranged on the first digging wheel body (3) and the second digging wheel body (4).
3. A hydraulic square pile drill bit according to claim 2, wherein: the cutting circle formed by the digging points of the digging elements (5) on the first digging wheel body (3) is tangent to the end surface, away from the supporting box body (1), of the adjacent second digging wheel body (4).
4. A hydraulic square pile drill bit according to claim 2 or 3, characterised in that: the number of the first digging parts or the second digging parts on the same side is more than or equal to two, and the end surfaces of the first digging wheel body (3) or the second digging wheel body (4) on the same side, which are far away from the supporting box body (1), are positioned on the same plane.
5. A hydraulic square pile drill bit according to claim 1, wherein: the hydraulic oil flow control device is characterized by further comprising an overflow valve, wherein the overflow valve is connected with a high-pressure oil pipe of the rotary drilling rig, and then the overflow valve, the reversing valve, the one-way valve and the flow dividing valve group (8) are sequentially arranged in the flow direction of hydraulic oil.
6. A hydraulic square pile drill bit according to claim 1 or 5, wherein: the reversing valve is an electromagnetic reversing valve.
7. A hydraulic square pile drill bit according to claim 5, wherein: the rotary drilling machine is characterized in that a connecting square head (2) is arranged on the supporting box body (1), and the connecting square head (2) is connected with a power head of the rotary drilling machine.
8. A hydraulic square pile drill bit according to claim 7, wherein: the one-way valve and the reversing valve are arranged on the power head of the rotary drilling rig; and/or the flow dividing valve group (8) is arranged in the supporting box body (1).
9. A hydraulic square pile drill bit according to claim 1, wherein: the hydraulic control system is connected with the excavating component through an excavator walking assembly (7), the excavator walking assembly (7) comprises a hydraulic motor and a speed reducer, the speed reducer is connected with the hydraulic motor, and the hydraulic motor is connected with the shunt valve group (8) through a connecting pipe.
10. A hydraulic square pile drill bit according to claim 9, wherein: the excavator walking assembly (7) is provided with a fixing plate and a rotary ring, the fixing plate is connected with the side wall of the supporting box body (1) through bolts, and the excavating component is fixed with the rotary ring through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321250636.2U CN220353815U (en) | 2023-05-23 | 2023-05-23 | Hydraulic square pile drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321250636.2U CN220353815U (en) | 2023-05-23 | 2023-05-23 | Hydraulic square pile drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220353815U true CN220353815U (en) | 2024-01-16 |
Family
ID=89482184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321250636.2U Active CN220353815U (en) | 2023-05-23 | 2023-05-23 | Hydraulic square pile drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220353815U (en) |
-
2023
- 2023-05-23 CN CN202321250636.2U patent/CN220353815U/en active Active
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