Hydraulic drilling device for extruding steel pipe pile

Abstract

The utility model provides a hydraulic drilling device for extruding a steel pipe pile. The hydraulic drilling device comprises a transmission structure, a rotating sleeve, a rotating bolt hole, a steel pipe sleeve and a steel pipe bolt hole, the transmission structure is used for being connected with an output shaft of an external hydraulic device so as to transmit power. The rotating sleeve is of a sleeve-shaped structure with the top end open, and a rotating bolt hole is formed in the side portion of the rotating sleeve and used for being connected with the transmission structure through a bolt pin. The top of the steel pipe sleeve and the bottom of the rotating sleeve are fixedly connected and concentrically arranged, the lower portion of the steel pipe sleeve is open, and a steel pipe bolt hole is formed in the side portion of the lower portion of the steel pipe sleeve and used for being in socket fit with a steel pipe and being connected with a steel pipe bolt pin. The hydraulic drilling device for extruding the steel pipe pile has the advantages that the construction environment requirement of the steel pipe pile is lowered, and the steel pipe pile can be constructed in a static pressure and rotary excavating mode.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe pile construction, in particular to a hydraulic drilling device for extruded steel pipe piles. Background Art

[0002] Typically, steel pipe pile construction uses a crawler crane to lift an electric vibratory hammer. The hammer's clamps lift the steel pipe and drive the pile into the ground according to the designated position. This construction process requires relatively large machinery and is not suitable for areas with limited height or where vibration control of the surrounding soil is strictly required.

[0003] Take the second section of the Long Rubber Corridor project at the Shiguchong Green Building Materials Base in Qichun County as an example. This section involved excavating a foundation pit beneath an existing highway. The deep excavation near the piers necessitated additional steel pipe piles for protection. However, due to the height of the bridge, large machinery could not be brought in for construction. To prevent excessive vibration from impacting the existing piers, the steel pipe piles were installed using static pressure or rotary drilling.

[0004] However, for sites with limited space, the construction of steel pipe piles by static pressure or rotary drilling still requires a matching drilling device. Currently, there are no matching tools on the market for static pressure or rotary drilling of steel pipe piles. Therefore, it is necessary to develop a hydraulic drilling device for extruded steel pipe piles to meet this demand. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies of the existing technology and thus provide a hydraulic drilling device for extruded steel pipe piles, which reduces the requirements for the steel pipe pile construction environment and enables the steel pipe piles to be constructed by static pressure and rotary drilling.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a hydraulic drilling device for extruded steel pipe piles, comprising a transmission structure, a rotating sleeve, a rotating bolt hole, a steel pipe sleeve and a steel pipe bolt hole;

[0007] The transmission structure is used to connect to the output shaft of the external hydraulic device to transmit power;

[0008] The rotating sleeve is a sleeve-shaped structure with an open top, and a rotating bolt hole is provided on the side of the rotating sleeve for being connected to the transmission structure with a pin;

[0009] The top of the steel pipe sleeve is fixedly connected to the bottom of the rotating sleeve and is concentrically arranged. The lower part of the steel pipe sleeve is open, and a steel pipe bolt hole is provided on the side of the lower part of the steel pipe sleeve for socket-fitting with the steel pipe and connecting with the steel pipe pin.

[0010] Preferably, the transmission structure is a coupling, the top end of the coupling is connected to the hydraulic device, and the bottom end of the coupling is provided with a through hole for a matching rotating bolt hole.

[0011] Preferably, double auxiliary lifting ears are provided on the outer side of the rotating sleeve and / or the outer side of the steel pipe sleeve.

[0012] Preferably, the gap between the inner wall of the steel pipe sleeve and the outer wall of the steel pipe to be matched is ≥1 cm.

[0013] Preferably, the outer diameter of the rotating sleeve is smaller than the outer diameter of the steel pipe sleeve.

[0014] Preferably, the rotating sleeve and the steel pipe sleeve are welded into one body via a connecting plate.

[0015] Preferably, the rotating sleeve is made of steel or iron.

[0016] Preferably, the steel pipe sleeve is made of steel or iron.

[0017] Preferably, the axial direction of the rotating bolt hole and the axial direction of the steel pipe bolt hole are perpendicular to each other.

[0018] Preferably, the orientations of the double auxiliary lifting ears are perpendicular to the axial directions of the corresponding rotating bolt holes or steel pipe bolt holes.

[0019] The present invention has substantial features and progress over the prior art. Specifically, the present invention can be used to achieve a connection between the driving end of the hydraulic device and the steel pipe pile, so that the rotational driving power of the hydraulic device is transmitted to the steel pipe of the steel pipe pile, so that the steel pipe pile can be constructed by static pressure or rotary drilling, solving the problem that the existing steel pipe pile cannot be put into use due to limited site, lack of operating height or lack of crawler crane placement space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the structural schematic diagrams of a hydraulic drilling device for extruded steel pipe piles in the utility model.

[0021] Figure 2 This is the second structural schematic diagram of a hydraulic drilling device for extruded steel pipe piles in the utility model.

[0022] In the figure: 1. Transmission structure; 2. Rotating sleeve; 3. Rotating bolt hole; 4. Steel pipe sleeve; 5. Steel pipe bolt hole; 6. Hydraulic device; 7. Double auxiliary lifting ears; 8. Connecting plate. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model is further described in detail below through specific implementation methods.

[0024] like Figure 1As shown, a hydraulic drilling device for extruded steel pipe piles includes a transmission structure 1, a rotating sleeve 2, a rotating bolt hole 3, a steel pipe sleeve 4 and a steel pipe bolt hole 5.

[0025] The transmission structure 1 is used to connect to the output shaft of the external hydraulic device 6 to transmit power. In this embodiment, the transmission structure adopts a coupling, the upper end of the coupling is used to connect to the hydraulic device 6, and the bottom end of the coupling is provided with a through hole for a matching rotating bolt hole 3.

[0026] The rotating sleeve 2 is a sleeve-shaped structure with an open top. A rotating bolt hole 3 is provided on the side of the rotating sleeve 2 for being pin-connected to the transmission structure 1 to transmit the rotational power of the hydraulic device to the rotating sleeve 2 .

[0027] The top of the steel pipe sleeve 4 is fixedly connected to the bottom of the rotating sleeve 2 and is concentrically arranged. In this embodiment, since the diameters of the steel pipe sleeve 4 and the rotating sleeve 2 are different, the outer diameter of the rotating sleeve 2 is smaller than the outer diameter of the steel pipe sleeve 4. Therefore, the rotating sleeve 2 and the steel pipe sleeve 4 are welded together through a connecting plate 8.

[0028] In this embodiment, the rotating sleeve 2 is made of steel or iron, the steel pipe sleeve 4 is made of steel or iron, and the axial direction of the rotating bolt hole 3 and the axial direction of the steel pipe bolt hole 5 are perpendicular to each other.

[0029] The lower portion of the steel pipe sleeve 4 is open, and a steel pipe bolt hole 5 is provided on the side of the lower portion of the steel pipe sleeve 4 for socket-fitting with the steel pipe and connecting with the steel pipe pin.

[0030] In order to facilitate the operation of the device, double auxiliary lifting ears 7 are set on the outside of the rotating sleeve 2 and / or the outside of the steel pipe sleeve 4, which can be used to carry the entire sleeve part by hand to facilitate transfer and installation. The orientation of the double auxiliary lifting ears 7 is perpendicular to the axial direction of the corresponding rotating bolt hole or steel pipe bolt hole, mainly to prevent spatial interference and affect operation.

[0031] To ensure installation flexibility, the gap between the inner wall of the steel pipe sleeve 4 and the outer wall of the steel pipe to be matched is ≥1 cm, which makes it easier to install in place during installation.

[0032] When in use, first install the coupling on the driving end of the hydraulic device, then hold the double auxiliary lifting ears 7, install the steel pipe sleeve 4 on the corresponding steel pipe, and finally move the entire hydraulic device to the top of the corresponding steel pipe pile. After adjusting the orientation, insert the lower end of the coupling into the rotating sleeve 2, and lock it with a pin, and start working.

[0033] This device has been experimentally validated, using the second section of the Long Rubber Corridor project at the Shiguchong Green Building Materials Base in Qichun County as an example. This project involved 350m of steel pipe pile construction, all located beneath existing highways near bridge piers. Downward pressure applied by a backhoe hydraulic system caused the coupling and steel pipe sleeve to rotate simultaneously, driving the steel pipe piles and ultimately achieving drilling. All steel pipe piles were driven with maximum speed and in the quietest manner. This not only facilitates processing and operation, but also achieves significant results in terms of product protection, noise control, quality management, and construction progress.

[0034] Finally, it should be noted that: The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A hydraulic drilling device for extruded steel pipe piles, characterized by: It includes a transmission structure, a rotating sleeve, a rotating bolt hole, a steel pipe sleeve and a steel pipe bolt hole; The transmission structure is used to connect to the output shaft of the external hydraulic device to transmit power; The rotating sleeve is a sleeve-shaped structure with an open top, and a rotating bolt hole is provided on the side of the rotating sleeve for being connected to the transmission structure with a pin; The top of the steel pipe sleeve is fixedly connected to the bottom of the rotating sleeve and is concentrically arranged. The lower part of the steel pipe sleeve is open, and a steel pipe bolt hole is provided on the side of the lower part of the steel pipe sleeve for socket-fitting with the steel pipe and connecting with the steel pipe pin.

2. The hydraulic drilling device for extruded steel pipe piles according to claim 1, characterized in that: The transmission structure is a coupling, the top end of the coupling is connected to the hydraulic device, and the bottom end of the coupling is provided with a through hole for a matching rotating bolt hole.

3. The hydraulic drilling device for extruded steel pipe piles according to claim 2, characterized in that: The outer side of the rotating sleeve and / or the outer side of the steel pipe sleeve is provided with double auxiliary lifting ears.

4. The hydraulic drilling device for extruded steel pipe piles according to claim 3, characterized in that: The gap between the inner wall of the steel pipe sleeve and the outer wall of the steel pipe to be matched is ≥1 cm.

5. The hydraulic drilling device for extruded steel pipe piles according to claim 4, characterized in that: The outer diameter of the rotating sleeve is smaller than the outer diameter of the steel pipe sleeve.

6. The hydraulic drilling device for extruded steel pipe piles according to claim 5, characterized in that: The rotating sleeve and the steel pipe sleeve are welded into one body via a connecting plate.

7. The hydraulic drilling device for extruded steel pipe piles according to claim 6, characterized in that: The rotating sleeve is made of steel or iron.

8. The hydraulic drilling device for extruded steel pipe piles according to claim 6, characterized in that: The material of the steel pipe sleeve is steel or iron.

9. The hydraulic drilling device for extruded steel pipe piles according to claim 7 or 8, characterized in that: The axial direction of the rotating bolt hole and the axial direction of the steel pipe bolt hole are perpendicular to each other.

10. The hydraulic drilling device for extruded steel pipe piles according to claim 9, characterized in that: The orientations of the double auxiliary lifting ears are perpendicular to the axial directions of the corresponding rotating bolt holes or steel pipe bolt holes.

Images