Equipment and method for drilling piles in soft geology for bridge construction

Abstract

The present invention relates to a bridge construction soft geological column pile drilling equipment and a use method, comprising a base and a bracket. A lifting platform is installed on the bracket, a drilling motor is vertically installed in the middle of the lifting platform, a rotating shaft is arranged below the lifting platform, the upper end of the rotating shaft is connected to the drilling motor for transmission, a drill bit is arranged at the lower end of the rotating shaft, a through hole is opened in the middle of the base, a plurality of sliding grooves are evenly distributed along the radial circumference on the upper surface of the drill bit, a movable plate is arranged in each sliding groove, a sleeve A is installed along the radial direction of the rotating shaft on the inner side surface of the movable plate, a plurality of sleeves A are arranged at intervals from top to bottom, a sleeve B is arranged outside the sleeve A, the inner end of the sleeve B is connected and fixed to the rotating shaft, a spring is arranged in the sleeve A, and the two ends of the spring are respectively connected and fixed to the sleeve A and the sleeve B. The device has uniform force for wire drilling, linear pressure output and higher stability. When drilling in a place with relatively soft geology, the inner wall of the hole drilled by the drill bit can be rotated and reinforced through the rotation energy of the movable plate, so as to compact the inner wall of the hole.

Description

Technical Field

[0001] The invention relates to soft geological column pile drilling equipment for bridge construction and a use method thereof. Background Art

[0002] With the progress of the times and the rapid development of the world economy, the use of roads has become increasingly frequent, but it still cannot meet people's needs. The construction of highway bridges is an effective means to reduce the pressure of road use. In the process of bridge construction, the quality of bridge column manufacturing directly affects the construction quality of the bridge.

[0003] The existing bridge construction column pile drilling equipment has a simple structure. During the drilling process, the device generally uses a cylinder to push the pressure output. The cylinder push pressure output is nonlinear and the force is uneven. When the stratum at the drilling site is relatively hard, the drilling effect of the drilling equipment is reduced. When the traditional bridge construction column pile drilling equipment is used for drilling operations in soft geology, it is impossible to reinforce the inside of the hole during drilling. When the drilling work is completed, the inside of the hole is prone to collapse, and the actual use effect of the device is poor. Summary of the invention

[0004] The invention provides a soft geological column pile drilling device for bridge construction and a use method thereof.

[0005] The solution adopted by the present invention to solve the technical problem is to provide a soft geological pile drilling equipment for bridge construction, including a base and a bracket installed on the base, a lifting platform is installed on the bracket, a drilling motor is vertically installed in the middle of the lifting platform, a rotating shaft is vertically arranged in the middle below the lifting platform, the upper end of the rotating shaft is connected for transmission with the output shaft of the drilling motor, a drill bit is installed at the lower end of the rotating shaft, a through hole for making way for the drill bit is opened in the middle of the base, a plurality of sliding grooves are evenly distributed along the radial circumference on the upper surface of the drill bit, a movable plate is arranged in each sliding groove, a sleeve A is radially installed on the inner side surface of the movable plate along the rotating shaft, a plurality of sleeves A are arranged at intervals from top to bottom, a sleeve B is arranged outside the sleeve A, the inner end of the sleeve B is connected and fixed to the rotating shaft, a spring is arranged in the sleeve A, and the two ends of the spring are respectively connected and fixed to the sleeve A and the sleeve B.

[0006] Furthermore, the bracket includes two side brackets spaced apart on the left and right, the side brackets are fixedly mounted on the base, the front and rear ends of the two side brackets are connected and fixed via a reinforcing plate, a screw rod and a lifting motor are vertically mounted in the middle of one of the side brackets, the lower end of the screw rod is connected to the output shaft of the lifting motor for transmission, the lower end of the screw rod is connected to the side bracket via a bearing seat, the lifting platform is sleeved on the side bracket, and a threaded sleeve threadedly connected to the screw rod is vertically mounted at the position of the lifting platform opposite to the screw rod.

[0007] Furthermore, a control panel for controlling the opening and closing of the motor is installed on one of the side brackets, and the output end of the control panel is electrically connected to the input ends of the drilling motor and the lifting motor through wires.

[0008] Furthermore, a plurality of inclined grooves are provided on the outer side surface of the movable plate at intervals from top to bottom.

[0009] Furthermore, the movable plates are arranged in one-to-one correspondence with the slide grooves, and six movable plates are arranged and evenly distributed on the outer side of the rotating shaft.

[0010] Furthermore, a plurality of crushing heads are evenly installed on the outer peripheral side of the drill bit.

[0011] Furthermore, four corners of the base are provided with mounting holes.

[0012] Furthermore, the outer cover of the drilling motor is provided with a shield, which is fixedly mounted on the lifting platform, and a plurality of heat dissipation holes are opened on the shield.

[0013] A method for drilling holes in soft geological piles for bridge construction: (1) connect the device to an external power supply, and install the base of the device to the place where it is needed through the installation hole; (2) adjust the drill bit to the initial use height, control and start the lifting motor, and the lifting motor drives the screw to rotate, so that the lifting platform is lifted and lowered, and the lifting platform drives the drill bit to lift and lower to the initial use height; (3) the lifting motor drives the screw to rotate, so that the lifting platform drives the drill bit to descend. When the lifting platform pushes the drill bit to the inside of the through hole on the base, the drilling motor is controlled, and the drilling drives the drill bit to rotate through the rotating shaft to drill the stratum at the bottom of the device. During the drilling process, if the geological conditions of the drilling location are relatively soft, the elastic effect of the spring causes the movable plate to open outward, so that the aperture formed between the movable plates increases, while the diameter of the drill bit remains unchanged. The inner wall of the hole drilled by the drill bit is rotated and reinforced by the rotation of the movable plate, and the inner wall of the hole is compacted; (4) when the drilling work is completed, the lifting motor drives the screw to rotate in the opposite direction, so that the lifting platform drives the drill bit to rise and rise out of the drilled hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects: simple structure, reasonable design, easy operation and use, a lifting method in which the lead screw and the threaded sleeve are combined with each other, uniform force is applied during drilling, linear pressure output, and higher stability. When drilling in areas with relatively soft geology, the inner wall of the hole drilled by the drill bit can be rotated and reinforced by the rotation of the movable plate, thereby compacting the inner wall of the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the main cross-sectional view of the device;

[0017] Figure 2 This is the main schematic diagram of the device;

[0018] Figure 3 This is a top view of the lifting platform;

[0019] Figure 4 It is a side view schematic diagram of the device;

[0020] Figure 5 A top view of the drill bit;

[0021] Figure 6 It is a schematic cross-sectional view of the movable plate from top view;

[0022] Figure 7 for Figure 1 A is an enlarged schematic diagram.

[0023] In the figure, 1-the screw mounting plate on the side bracket, 2-the reinforcement plate, 3-the shield, 4-the drilling motor, 5-the lifting platform, 6-the motor shaft clearance hole on the lifting platform, 7-the movable plate, 8-the rotating shaft, 9-the inclined groove, 10-the side bracket A, 11-the crushing head, 12-the drill bit, 13-the through hole, 14-the lifting motor, 15-the base, 16-the mounting hole, 17-the spring, 18-the side bracket B, 19-the screw, 20-the threaded sleeve, 21-the bearing seat, 22-the control panel, 23-the through hole for connecting the lifting platform with the side bracket B, 24-the through hole for connecting the lifting platform with the side bracket A, 25-the slide groove, 26-the sleeve B, 27-the sleeve A. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figure 1-7 As shown, a soft geological pile drilling equipment for bridge construction comprises a base and a bracket installed on the base, a lifting platform is installed on the bracket, a drilling motor is vertically installed in the middle of the lifting platform, a rotating shaft is vertically arranged in the middle of the lower part of the lifting platform, the upper end of the rotating shaft is connected for transmission with the output shaft of the drilling motor, a drill bit is installed at the lower end of the rotating shaft, a through hole for making way for the drill bit is opened in the middle of the base, a plurality of sliding grooves are evenly distributed along the radial circumference on the upper surface of the drill bit, a movable plate is arranged in each sliding groove, a sleeve A is radially installed on the inner side surface of the movable plate along the rotating shaft, a plurality of sleeves A are arranged at intervals from top to bottom, a sleeve B is arranged outside the sleeve A, the inner end of the sleeve B is connected and fixed to the rotating shaft, a spring is arranged in the sleeve A, and the two ends of the spring are respectively connected and fixed to the sleeve A and the sleeve B.

[0026] In this embodiment, the bracket includes two side brackets spaced apart on the left and right, the side brackets are fixedly mounted on the base, the front and rear ends of the two side brackets are connected and fixed via a reinforcing plate, a screw rod and a lifting motor are vertically mounted in the middle of one of the side brackets, the lower end of the screw rod is connected to the output shaft of the lifting motor for transmission, the lower end of the screw rod is connected to the side bracket via a bearing seat, the lifting platform is sleeved on the side bracket, and a threaded sleeve threadedly connected to the screw rod is vertically mounted at the position of the lifting platform opposite to the screw rod.

[0027] In this embodiment, a rib is welded between the lower end of the side bracket and the base to improve the rigidity of the equipment.

[0028] In this embodiment, a control panel for controlling the opening and closing of the motor is installed on one of the side brackets, and the output end of the control panel is electrically connected to the input ends of the drilling motor and the lifting motor through wires.

[0029] In this embodiment, a plurality of inclined grooves are provided at intervals from top to bottom on the outer side surface of the movable plate.

[0030] In this embodiment, the movable plates are arranged in one-to-one correspondence with the slide grooves, and six movable plates are arranged and evenly distributed on the outer side of the rotating shaft.

[0031] In this embodiment, a plurality of crushing heads are evenly installed on the outer peripheral side of the drill bit to increase the drilling effect.

[0032] In this embodiment, mounting holes are provided at the four corners of the base, and the device can be installed at the place where it is needed through the mounting holes to increase stability.

[0033] In this embodiment, the outer cover of the drilling motor is provided with a shield, which is fixedly mounted on the lifting platform, and a plurality of heat dissipation holes are opened on the shield.

[0034] In this embodiment, the model of the lifting motor and the drilling motor may be Y90S-1.

[0035] A method for drilling holes in soft geological piles for bridge construction: (1) connect the device to an external power supply, and install the base of the device to the place where it is needed through the installation hole; (2) adjust the drill bit to the initial use height, control and start the lifting motor, and the lifting motor drives the screw to rotate, so that the lifting platform is lifted and lowered, and the lifting platform drives the drill bit to lift and lower to the initial use height; (3) the lifting motor drives the screw to rotate, so that the lifting platform drives the drill bit to descend. When the lifting platform pushes the drill bit to the inside of the through hole on the base, the drilling motor is controlled, and the drilling drives the drill bit to rotate through the rotating shaft to drill the stratum at the bottom of the device. During the drilling process, if the geological conditions of the drilling location are relatively soft, the elastic effect of the spring causes the movable plate to open outward, so that the aperture formed between the movable plates increases, while the diameter of the drill bit remains unchanged. The inner wall of the hole drilled by the drill bit is rotated and reinforced by the rotation of the movable plate, and the inner wall of the hole is compacted; (4) when the drilling work is completed, the lifting motor drives the screw to rotate in the opposite direction, so that the lifting platform drives the drill bit to rise and rise out of the drilled hole.

[0036] The preferred embodiments listed above further illustrate the objectives, technical solutions and advantages of the present invention in detail. It should be understood that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bridge construction soft geological column pile drilling equipment, characterized by: The utility model comprises a base and a bracket installed on the base, a lifting platform is installed on the bracket, a drilling motor is vertically installed in the middle of the lifting platform, a rotating shaft is vertically arranged in the middle of the lower part of the lifting platform, the upper end of the rotating shaft is connected with the output shaft of the drilling motor for transmission, a drill bit is installed at the lower end of the rotating shaft, a through hole for making way for the drill bit is opened in the middle of the base, a plurality of slide grooves are evenly distributed on the upper surface of the drill bit along the radial circumference, a movable plate is arranged in each slide groove, a sleeve A is radially arranged on the inner side surface of the movable plate along the rotating shaft, a plurality of sleeves A are arranged at intervals from top to bottom, a sleeve B is arranged outside the sleeve A, the inner end of the sleeve B is connected and fixed to the rotating shaft, a spring is arranged in the sleeve A, and the two ends of the spring are respectively connected and fixed to the sleeve A and the sleeve B. ; The bracket includes two side brackets spaced apart on the left and right, the side brackets are fixedly mounted on the base, the front and rear ends of the two side brackets are connected and fixed via a reinforcing plate, a screw rod and a lifting motor are vertically mounted in the middle of one of the side brackets, the lower end of the screw rod is connected to the output shaft of the lifting motor for transmission, the lower end of the screw rod is connected to the side bracket via a bearing seat, the lifting platform is sleeved on the side bracket, and a threaded sleeve threadedly connected to the screw rod is vertically mounted at the position of the lifting platform opposite to the screw rod; a control panel for controlling the opening and closing of the motor is mounted on one of the side brackets, and the output end of the control panel is electrically connected to the input end of the drilling motor and the lifting motor through a wire; a plurality of inclined grooves are spaced apart from each other on the outer side of the movable plate from top to bottom.

2. The soft geological column pile drilling equipment for bridge construction according to claim 1 is characterized by: The movable plates are arranged one by one with the slide grooves, and six movable plates are arranged and evenly distributed on the outer side of the rotating shaft.

3. The soft geology column pile drilling equipment for bridge construction according to claim 1 is characterized by: A plurality of crushing heads are evenly installed on the outer peripheral side of the drill bit.

4. The soft geology column pile drilling equipment for bridge construction according to claim 1 is characterized by: The four corners of the base are all provided with mounting holes.

5. The soft geology column pile drilling equipment for bridge construction according to claim 1 is characterized by: The outer cover of the drilling motor is provided with a shield, which is fixedly mounted on the lifting platform, and a plurality of heat dissipation holes are opened on the shield.

6. A method for drilling soft geological piles for bridge construction, using the soft geological pile drilling equipment for bridge construction as claimed in claim 1, characterized in that: The method comprises the following steps: (1) connecting the device to an external power supply and installing the base of the device to a location where the device is to be used through the mounting hole; (2) adjusting the drill bit to an initial use height, controlling and starting the lifting motor, and driving the lifting motor to rotate the lead screw so that the lifting platform is lifted and lowered, and the lifting platform drives the drill bit to lift and lower to the initial use height; (3) driving the lead screw to rotate by the lifting motor so that the lifting platform drives the drill bit to descend. When the lifting platform pushes the drill bit to the inside of the through hole on the base, the drilling motor is controlled so that the drilling motor drives the drill bit to rotate through the rotating shaft to drill a hole in the stratum at the bottom of the device. During the drilling process, if the geology of the drilling location is relatively soft, the elastic action of the spring causes the movable plate to open outward, so that the aperture formed between the movable plates increases, while the diameter of the drill bit remains unchanged. The inner wall of the hole drilled by the drill bit is rotated and reinforced by the rotation of the movable plate, thereby compacting the inner wall of the hole; (4) when the drilling work is completed, the lifting motor drives the lead screw to rotate in the opposite direction, so that the lifting platform drives the drill bit to rise and rise out of the drilled hole.

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