Gravity type hydraulic static load pile cap former

Abstract

The utility model discloses a gravity type hydraulic static load pile cap former which comprises an excavator and further comprises a hydraulic static load driving assembly, the hydraulic static load driving assembly is detachably connected with a mechanical arm of the excavator, and the lower portion of the hydraulic static load driving assembly is connected with the pile cap former. The excavator controls the hydraulic static load driving assembly to act so as to drive the pile cap forming device to act, and construction of a pile cap soil mold is achieved through the pile cap forming device. The square pile cap soil mold can be rapidly formed, the technical problems that conventional manual excavation is low in efficiency, inconvenient to operate and not prone to rapid forming are solved, and the technical problems that a spiral blade of a drill bit of a traditional pile cap soil sampler is prone to clamping soil, an external soil sampling mode is insufficient in torque and low in construction efficiency, and soil is left in a hole after reaming are solved. Design is reasonable, use is convenient, construction efficiency is high, and forming quality is good; and the hydraulic static load driving assembly is detachably connected with the pile cap forming device, so that maintenance and installation of the pile cap forming device are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of pile foundation construction, in particular to a gravity type hydraulic static load pile cap former. Background Art

[0002] In the process of railway soft soil roadbed treatment, bored concrete cast-in-place piles are mostly used to improve the stability of railway soft soil roadbed. An enlarged head, commonly known as the pile cap, is often set at the top of the pile to improve the puncture of the foundation cushion layer by the top, thereby improving the bearing capacity of the foundation and uneven settlement.

[0003] The existing construction process is to improve the performance of the pile body by adding a "pile cap" to the top of the pile through mechanical excavation of the pile head, pile cutting, and formwork after the pile is formed and maintained. In order to improve the hole expansion efficiency, a pile cap soil picker is often grafted onto an excavator for operation at the construction site. The traditional pile cap soil picker is a three-blade variable spiral external soil picking device, and the "soil molds" constructed are mostly circular. There are currently few pile cap soil pickers that construct the "soil mold" into a cube on the market, and they are all formed by manpower, with low construction efficiency.

[0004] In addition, the traditional pile cap soil extractor is easy to get soil caught in the spiral blades of the drill bit during use, forming a soil bag that hinders the rotation of the drill bit and increases the torque. In addition, there is no blade stirring in the center, and the difference in the rotational linear speed between the outer edge and the center of the drill bit increases. The external soil extraction method often has insufficient torque, low construction efficiency, and residual soil in the hole after hole expansion, etc., which has many defects.

[0005] Therefore, there is an urgent need for a gravity-type hydraulic static load pile cap former to solve the above technical problems. Utility Model Content

[0006] The utility model aims to solve the above-mentioned problems, thereby providing a gravity-type hydraulic static load pile cap former, which can quickly form a cubic pile cap soil mold, solves the technical problems of low efficiency, inconvenient operation and difficulty in rapid forming in conventional manual excavation, and also solves the technical problems of easy soil clamping by the spiral blade of the drill bit of the traditional pile cap soil extractor, insufficient torque and low construction efficiency in the external soil extracting method, and residual soil in the hole after hole expansion; it has reasonable design, convenient use, high construction efficiency and good molding quality.

[0007] The utility model solves the above problems and adopts the following technical solutions:

[0008] A gravity-type hydraulic static load pile cap former comprises an excavator and a hydraulic static load drive assembly, wherein the hydraulic static load drive assembly is detachably connected to the mechanical arm of the excavator, and the pile cap former is connected below the hydraulic static load drive assembly; the hydraulic static load drive assembly comprises a hydraulic drive component, a rectangular connecting portion is fixedly connected to the hydraulic drive component, the rectangular connecting portion is detachably connected to the mechanical arm, a double-acting hydraulic cylinder is arranged at the center of the bottom surface of the hydraulic drive component, the double-acting hydraulic cylinder comprises a control end and a telescopic end, two hydraulic oil pipes are connected to the control end, the control end and the two hydraulic oil pipes are both placed in the hydraulic drive component, and the two hydraulic oil pipes are both extended out of the hydraulic drive component and are detachably connected to the hydraulic system of the excavator, the telescopic end is located below the hydraulic drive component, the pile cap former comprises a soil extractor, the lower end portion of the telescopic end is detachably mounted at the center of the top surface of the soil extractor, the soil extractor is an internally hollow cube with an opening at the bottom, a hollow tube is vertically fixed at the center of the internal top surface of the soil extractor, and the hollow tube and the telescopic end are coaxially arranged up and down.

[0009] As a preferred embodiment, a further technical solution of the utility model is:

[0010] Furthermore, a connecting part is provided between the telescopic end and the earth-picking device, and the connecting part includes a connecting flange, which is fixed to the lower end portion of the telescopic end. A connecting gravity square column is vertically fixed to the center of the top surface of the earth-picking device. The connecting flange and the connecting gravity square column are connected by fastening high-strength bolts. A plurality of steel ribs are provided around the connecting gravity square column, and the plurality of steel ribs are fixed to the top surface of the earth-picking device.

[0011] Furthermore, the rectangular connecting part is in the shape of a rectangular parallelepiped with a hollow interior and an opening at the top, and the rectangular connecting part includes two long steel plates and two short steel plates, and the two long steel plates and the two short steel plates are enclosed and fixed on the top surface of the hydraulic drive component, and the two long steel plates, the two short steel plates and the hydraulic drive component together form an inwardly concave arm end connecting part, and the robotic arm is placed in the arm end connecting part, and the two long steel plates are opposite to each other and are both provided with through holes, and fastening high-strength bolts connected to the robotic arm are commonly installed on the two through holes, and the fastening high-strength bolts connect the rectangular connecting part and the robotic arm together.

[0012] Furthermore, the soil sampler includes a top plate and four side panels, which are all square structures. The four side panels are enclosed and fixed together on the bottom surface of the top plate. The hollow tube is vertically fixed at the center of the bottom surface of the top plate, and serrated openings are provided on the lower sides of the four side panels.

[0013] Furthermore, the hollow top of the hollow tube closes the lower opening, and the height of the hollow tube is consistent with the height of the side panel body.

[0014] Furthermore, an electromagnetic vibrator is arranged between the hollow tube and the top plate body, the electromagnetic vibrator is fixed on the top surface of the hollow tube, the electromagnetic vibrator is connected to the power supply system of the excavator, a switch for controlling the start and stop of the electromagnetic vibrator is arranged in the cab of the excavator, and a protective steel plate body is arranged around the electromagnetic vibrator, and the enclosed protective steel plate body is fixed between the hollow tube and the top plate body.

[0015] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0016] The utility model comprises a hydraulic static load driving component and a pile cap former, the hydraulic static load driving component is connected with the excavator, the pile cap former is connected with the hydraulic static load driving component, the excavator controls the hydraulic static load driving component to move, thereby driving the pile cap former to move, and realizing the construction of the pile cap soil mold through the pile cap former; the cube pile cap soil mold can be formed quickly, which solves the technical problems of low efficiency, inconvenient operation and difficulty in rapid forming in conventional manual excavation, and also solves the technical problems that the spiral blade of the drill bit of the traditional pile cap soil extractor is easy to clamp soil, the torque of the external soil extracting method is insufficient, the construction efficiency is low, and the soil remains in the hole after the hole is expanded; not only is the design reasonable and the use is convenient, but also the construction efficiency is high and the molding quality is good, and the labor cost and the number of rework times are reduced; in addition, the hydraulic static load driving component is detachably connected to the mechanical arm, which improves the commonality and application range with conventional machinery; in addition, the hydraulic static load driving component is detachably connected to the pile cap former, which is also conducive to the maintenance and installation of the pile cap former, and improves the practicality of the pile cap former. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the side view structure of the utility model;

[0019] In the figure: 1. Excavator; 2. Mechanical arm; 3. Hydraulic drive component; 4. Rectangular connection; 5. Double-acting hydraulic cylinder; 6. Hydraulic oil pipe; 7. Earth picker; 8. Hollow pipe; 9. Connecting gravity square column; 10. Steel rib plate; 11. Serrated opening; 12. Tightening high-strength bolts. DETAILED DESCRIPTION

[0020] The following description of the embodiments will help the public better understand the present invention, but the specific embodiments given by the applicant cannot and should not be regarded as limitations on the technical solution of the present invention. Any changes to the definitions of components or technical features and / or formal rather than substantive changes to the overall structure should be regarded as the scope of protection defined by the technical solution of the present invention.

[0021] See also Figure 1 to Figure 2As shown, the technical solution of the utility model is as follows:

[0022] A gravity type hydraulic static load pile cap former comprises an excavator 1 and a hydraulic static load driving assembly. The hydraulic static load driving assembly is detachably connected to a mechanical arm 2 of the excavator 1. A pile cap former is connected below the hydraulic static load driving assembly. The excavator 1 drives the mechanical arm 2 and the hydraulic static load driving assembly to move. The hydraulic static load driving assembly drives the pile cap former to move, thereby completing the construction of the pile cap soil mold through the pile cap former to expand the cube soil mold and take soil. The hydraulic static load driving assembly comprises a hydraulic driving component 3. A rectangular connecting portion 4 is fixedly connected to the component 3, and the rectangular connecting portion 4 is detachably connected to the mechanical arm 2, which is conducive to the installation and removal of the gravity-type hydraulic static load pile cap former and the excavator 1, thereby improving the convenience of using the gravity-type hydraulic static load pile cap former. A double-acting hydraulic cylinder 5 is installed at the bottom center of the hydraulic drive component 3. The double-acting hydraulic cylinder 5 includes a control end and a telescopic end. Two hydraulic oil pipes 6 are connected to the control end. The control end and the two hydraulic oil pipes 6 are all installed in the hydraulic drive component 3. The hydraulic drive component 3 is in a cube shape, and It is composed of six square steel plates. A housing is installed in the hydraulic drive component 3. The double-acting oil cylinder control end and two hydraulic oil pipes 6 are installed in the housing. In addition, a counterweight is installed outside the housing inside the hydraulic drive component 3. The weight of the gravity-type hydraulic static load pile cap former is increased by adding the counterweight, which is conducive to the pile cap former invading the soil and taking out the soil in one step. The two hydraulic oil pipes 6 extend out of the hydraulic drive component 3 and are detachably connected to the hydraulic system of the excavator 1. The double-acting hydraulic cylinder 5 is provided with a hydraulic pressure by the hydraulic system. Power is supplied to control the telescopic action of the double-acting oil cylinder. The telescopic end is located below the hydraulic drive component 3. The pile cap former includes a soil extractor 7. The lower end of the telescopic end can be detachably mounted on the center of the top surface of the soil extractor 7, which is beneficial to the installation, disassembly and maintenance of the pile cap former. The soil extractor 7 is a hollow cube with an open bottom. A hollow tube 8 is vertically fixed at the center of the top surface of the soil extractor 7. The hollow tube 8 is coaxially arranged with the telescopic end up and down, so that the force applied by the telescopic end can be better transmitted to the hollow tube 8, which is beneficial for the hollow tube 8 to invade the soil.

[0023] A connection part is provided between the telescopic end and the earth-picking device 7, and the connection part includes a connection flange, which is welded to the lower end of the telescopic end, and a connection gravity square column 9 is vertically welded at the center of the top surface of the earth-picking device 7, and the connection gravity square column 9 is a steel column block. By connecting the gravity square column 9, the weight of the gravity-type hydraulic static load pile cap former is increased, so that it is convenient for the pile cap former to invade the soil and take out the soil in one time. Bolt holes are provided on the top surface of the connection gravity square column 9, and fastening high-strength bolts 12 are installed on the connection flange. The fastening high-strength bolts 12 are installed in the bolt holes, so that by fastening the high-strength bolts The bolt 12 connects the connecting flange and the connecting gravity square column 9 together, so that the hydraulic static load drive component is firmly connected to the pile cap former, and also realizes a detachable connection between the hydraulic static load drive component and the pile cap former, which is beneficial to the installation, disassembly and maintenance of the pile cap former. A plurality of steel ribs 10 are welded around the connecting gravity square column 9. The plurality of steel ribs 10 are all steel plates and their number is determined according to actual needs. The plurality of steel ribs 10 are welded on the top surface of the earth extractor 7. The plurality of steel ribs 10 improve the firmness of the connection between the gravity column and the earth extractor 7, thereby playing a reinforcement role.

[0024] The rectangular connecting portion 4 is in the shape of a rectangular parallelepiped with a hollow interior and an opening at the top. The rectangular connecting portion 4 includes two long steel plates and two short steel plates. The two long steel plates and the two short steel plates are all steel plates. The two long steel plates and the two short steel plates are welded together. The two long steel plates and the two short steel plates are welded and fixed together on the top surface of the hydraulic drive component 3. The two long steel plates, the two short steel plates and the hydraulic drive component 3 together form an inwardly concave arm end connecting portion. The mechanical arm 2 is placed on the arm end connecting portion. Inside, two long steel plates are opposite to each other and are both provided with through holes. The two through holes are arranged opposite to each other, and fastening high-strength bolts 12 connected to the mechanical arm 2 are installed on the two through holes. The fastening high-strength bolts 12 connect the rectangular connecting part 4 and the mechanical arm 2 together; the firmness of the gravity hydraulic static load pile cap former and the mechanical arm 2 is ensured, and at the same time, it is also conducive to the installation and disassembly of the gravity hydraulic static load pile cap former, and the convenience of using the gravity hydraulic static load pile cap former is improved.

[0025] The soil extractor 7 comprises a top plate and four side panels, which are all square structures and are all steel plates. The height of the top plate and the four side panels is 500 mm, and the four side panels are welded together. The four side panels welded together are welded together on the bottom surface of the top plate. The height of the hollow tube 8 is 500 mm, and the outer diameter of the hollow tube 8 is 350 mm. The hollow tube 8 is vertically fixed at the center of the bottom surface of the top plate. The lower sides of the four side panels are all provided with serrated openings 11, and the soil extractor 7 can smoothly invade the soil through the serrated openings 11; the above-mentioned soil extraction structure has a shaping and positioning effect on the soil at the pile cap soil mold, and the soil extractor 7 can squeeze and compact the soil around the pile cap soil mold, so that the once-molded soil can be smoothly taken out; in addition, the hollow tube 8 protects the pile and prevents the pile from being damaged.

[0026] The hollow top of the hollow tube 8 closes the lower opening, and the height of the hollow tube 8 is consistent with the height of the side panel body.

[0027] An electromagnetic vibrator is arranged between the hollow tube 8 and the top plate body, and the electromagnetic vibrator is fixed on the top surface of the hollow tube 8. The electromagnetic vibrator is connected to the power system of the excavator 1. A switch for controlling the start and stop of the electromagnetic vibrator is arranged in the cab of the excavator 1. A protective steel plate body is welded around the electromagnetic vibrator. The enclosed protective steel plate body is welded between the hollow tube 8 and the top plate body. The electromagnetic vibrator is protected by the protective steel plate body, and the hollow tube 8 and the earth extractor 7 are firmly connected together by the protective steel plate body. The electromagnetic vibrator is installed on the hollow tube 8. When the electromagnetic vibrator is energized and vibrated, the soil taken by the earth extractor 7 can be shaken out, which is conducive to the shedding of the dense soil in the pile cap former.

[0028] Usage: install the gravity-type hydraulic static load pile cap former on the mechanical arm 2 of the excavator 1, connect and fix the mechanical arm 2 to the rectangular connecting part 4, connect the two hydraulic oil pipes 6 to the hydraulic system of the excavator 1, and drive it through the excavator 1; the mechanical arm 2 of the excavator 1 has an independent hydraulic system, which can freely rotate the mechanical arm 2 and adjust the direction of the end, which is beneficial to the hole expansion and soil excavation construction of the gravity-type hydraulic static load pile cap former; the excavator 1 is controlled by the hydraulic system to concentrate its own weight on the mechanical arm 2, and the mechanical arm 2 concentrates the hydraulic mechanical energy and its own gravity on the end connected to the gravity-type hydraulic static load pile cap former, thereby transmitting all the force to the hydraulic static load drive component, and the hydraulic static load drive component uses the same principle to The hydraulic mechanical energy, its own gravity and the force transmitted by the mechanical arm 2 are all transmitted to the pile cap former, so that the pile cap former invades the soil to form a cubic pile cap soil mold; under the support of the above-mentioned forces, the pile cap former can more easily invade the soil by the above-mentioned static load force to form a cubic pile cap soil mold; wherein, the hydraulic static load drive component transmits force by means of the extension and contraction of the double-acting hydraulic cylinder 5, which involves the transmission of anti-gravity. The double-acting hydraulic cylinder 5 transmits the force in reverse to the force transmitted by the mechanical arm 2, and then transmits it back to the double-acting hydraulic cylinder 5 through the reaction force; finally, the concrete transport vehicle pumps the mixed concrete into the soil mold through the conduit to form a cubic pile cap, and then carries out final maintenance and molding to complete the construction of the entire cubic pile cap.

[0029] The utility model comprises a hydraulic static load drive component and a pile cap former, the hydraulic static load drive component is connected to an excavator 1, the pile cap former is connected to the hydraulic static load drive component, the excavator 1 controls the hydraulic static load drive component to move, thereby driving the pile cap former to move, and realizing the construction of the pile cap soil mold through the pile cap former; the cube pile cap soil mold can be quickly formed, which solves the technical problems of low efficiency, inconvenient operation and difficulty in rapid forming in conventional manual excavation, and also solves the technical problems of easy soil clamping by the spiral blade of the drill bit of the traditional pile cap soil extractor 7, insufficient torque of the external soil extracting method, low construction efficiency, and residual soil in the hole after hole expansion; not only is the design reasonable and the use convenient, but also the construction efficiency is high and the molding quality is good, and the labor cost and the number of rework times are reduced; in addition, the hydraulic static load drive component is detachably connected to the mechanical arm 2, which improves the commonality and application range with conventional machinery; in addition, the hydraulic static load drive component is detachably connected to the pile cap former, which is also conducive to the maintenance and installation of the pile cap former, and improves the practicality of the pile cap former.

[0030] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A gravity type hydraulic static load pile cap former, comprising an excavator, characterized in that: It also includes a hydraulic static load drive component, which is detachably connected to the mechanical arm of the excavator, and a pile cap former is connected below the hydraulic static load drive component; the hydraulic static load drive component includes a hydraulic drive component, a rectangular connecting portion is fixedly connected to the hydraulic drive component, the rectangular connecting portion is detachably connected to the mechanical arm, a double-acting hydraulic cylinder is arranged at the center of the bottom surface of the hydraulic drive component, the double-acting hydraulic cylinder includes a control end and a telescopic end, two hydraulic oil pipes are connected to the control end, the control end and the two hydraulic oil pipes are both placed in the hydraulic drive component, and the two hydraulic oil pipes are extended from the hydraulic drive component and are detachably connected to the hydraulic system of the excavator, the telescopic end is located below the hydraulic drive component, the pile cap former includes a soil extractor, the lower end of the telescopic end is detachably installed in the center of the top surface of the soil extractor, the soil extractor is a hollow cube with an open bottom, a hollow tube is vertically fixed at the center of the internal top surface of the soil extractor, and the hollow tube and the telescopic end are coaxially arranged up and down.

2. The gravity type hydraulic static load pile cap former according to claim 1, characterized in that: A connecting part is arranged between the telescopic end and the earth-picking device, and the connecting part includes a connecting flange, which is fixed to the lower end of the telescopic end. A connecting gravity square column is vertically fixed to the center of the top surface of the earth-picking device. The connecting flange and the connecting gravity square column are connected by fastening high-strength bolts. A plurality of steel ribs are arranged around the connecting gravity square column, and the plurality of steel ribs are fixed to the top surface of the earth-picking device.

3. The gravity type hydraulic static load pile cap former according to claim 1, characterized in that: The rectangular connection part is in the shape of a rectangular parallelepiped with a hollow interior and an opening at the top. The rectangular connection part includes two long steel plates and two short steel plates. The two long steel plates and the two short steel plates are enclosed and fixed on the top surface of the hydraulic drive component. The two long steel plates, the two short steel plates and the hydraulic drive component together form an inwardly concave arm end connection part. The mechanical arm is placed in the arm end connection part. The two long steel plates are opposite to each other and are both provided with through holes. Fastening high-strength bolts connected to the mechanical arm are jointly installed on the two through holes. The fastening high-strength bolts connect the rectangular connection part and the mechanical arm together.

4. The gravity type hydraulic static load pile cap former according to claim 1, characterized in that: The soil sampler includes a top plate and four side panels, which are all square structures. The four side panels are enclosed and fixed together on the bottom surface of the top plate. A hollow tube is vertically fixed at the center of the bottom surface of the top plate, and serrated openings are provided on the lower sides of the four side panels.

5. The gravity type hydraulic static load pile cap former according to claim 4, characterized in that: The hollow top of the hollow tube closes the lower opening, and the height of the hollow tube is consistent with the height of the side panel body.

6. The gravity type hydraulic static load pile cap former according to claim 5, characterized in that: An electromagnetic vibrator is arranged between the hollow tube and the top plate body, the electromagnetic vibrator is fixed on the top surface of the hollow tube, the electromagnetic vibrator is connected to the power supply system of the excavator, a switch for controlling the start and stop of the electromagnetic vibrator is arranged in the cab of the excavator, and a protective steel plate body is arranged around the electromagnetic vibrator, and the enclosed protective steel plate body is fixed between the hollow tube and the top plate body.

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