CN112962692A - Electromagnetic drop hammer piling testing machine with accurately controllable drop distance - Google Patents
Electromagnetic drop hammer piling testing machine with accurately controllable drop distance Download PDFInfo
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- CN112962692A CN112962692A CN202110419265.5A CN202110419265A CN112962692A CN 112962692 A CN112962692 A CN 112962692A CN 202110419265 A CN202110419265 A CN 202110419265A CN 112962692 A CN112962692 A CN 112962692A
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- 239000002689 soil Substances 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses an electromagnetic drop hammer piling testing machine with an accurately controllable drop distance. This pile test machine pile hammer snatchs to lift and the release of pile hammer is accomplished through electric cabinet control electromagnet automatically, does not need manual operation, and the pile hammer reciprocates simultaneously and also is accomplished by electric cabinet control lead screw lift. The pile hammer can be adjusted in weight by adding a balance weight, and the lifting height can be adjusted randomly within the stroke range. The testing machine is used for carrying out model test, so that the accuracy of the test result can be greatly improved. This pile testing machine is provided with the stake pipe centralizer, and the stake pipe need not pre-buried, and the pile hammer reciprocates in the centralizer and avoids the pile driving in-process to deviate from and cause the potential safety hazard, and the security in the test process has effectively been improved to the stake pipe centralizer.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to an electromagnetic drop hammer piling testing machine with accurate and controllable drop distance.
Background
The pile driver is a pile driving machine which utilizes impact force to drive a pile into a stratum and consists of a pile hammer, a pile frame, accessory equipment and the like. Because traditional pile driver is bulky, and hammering energy and hammering height can't accurate control, can not satisfy the experimental demand of model, consequently need design a pile testing machine that can satisfy experimental requirement.
At present, when a model pile is subjected to model test, the pile is usually driven in a manual hammer dropping mode, and the problems of low pile driving efficiency, poor test precision and the like exist, so that the test result is greatly influenced.
Aiming at the problems, the invention provides an electromagnetic drop hammer pile driving testing machine with accurately controllable drop distance by researching and improving the existing pile driver technology, and aims to achieve the purpose of solving the problem that the existing pile driver cannot well complete the model test through the technology.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an electromagnetic drop hammer piling testing machine with accurate and controllable drop distance.
The invention is realized by the following technical scheme:
an electromagnetic drop hammer piling testing machine with accurately controllable drop distance comprises a movable frame, a longitudinal guide rail, a transverse guide rail, a movable bracket, a connecting rod, a transverse lead screw, a lead screw lifter, a vertical lead screw, an electromagnetic chuck, a heavy hammer and a guide centralizer;
the movable frame is movably arranged on the longitudinal guide rail through a longitudinal pulley at the bottom, the upper end of the movable frame is provided with a transverse guide rail, the movable support is movably arranged on the transverse guide rail through a transverse pulley at the bottom, one side of the movable frame is provided with a transverse screw rod driven by a first driving motor, the lower end of the connecting rod is connected with the transverse screw rod, the upper end of the connecting rod is connected with the movable support, and the transverse screw rod is driven by the first driving motor to rotate so as to drive the movable support to move along the transverse guide rail;
the movable support is provided with a screw rod lifter driven by a second driving motor, the vertical screw rod penetrates through the movable support along the vertical direction and is hinged with the screw rod lifter, the electromagnetic chuck is arranged at the lower end of the vertical screw rod, and the heavy hammer is adsorbed at the lower end of the electromagnetic chuck through magnetic force;
the guide centralizer is arranged below the movable support, and when the guide centralizer is used, the heavy hammer is arranged at the center of each righting rod to limit the heavy hammer in the vertical direction.
In the technical scheme, the transverse guide rail is provided with a limiting frame for limiting the movable support.
In the technical scheme, the electromagnet is arranged on the electromagnet, and a righting rod hole matched with the righting rod is formed in the edge of the electromagnet, so that the electromagnet is connected with the righting rod in a sliding mode.
In the technical scheme, the guide centralizer comprises centralizing rods, a bottom ring and centralizing arms, the quantity of the centralizing rods is greater than or equal to 3, the bottom end of each centralizing rod is fixedly connected with the bottom ring in the vertical direction, the quantity of the centralizing arms is greater than or equal to 3, one end of each centralizing arm is fixed on the bottom ring, and the other end of each centralizing arm extends out of the circle center of the bottom ring.
In the technical scheme, a pile body is arranged below the inner part of the guide centralizer, and the pile body is in contact with the centralizing arm to realize positioning.
In the technical scheme, the upper end of the pile body is provided with the pile cap.
In the technical scheme, the movable frame is provided with the electric cabinet, and the electric cabinet is in communication connection with the first driving motor and the second driving motor to realize the transverse movement of the movable support and the control of the screw rod lifter.
In the technical scheme, the longitudinal pulley is an electric pulley, and the electric cabinet is in communication connection with the electric pulley, so that the longitudinal movement of the movable frame is controlled.
In the technical scheme, the electric cabinet is in communication connection with the control circuit of the electromagnet, so that the work of the electromagnet is controlled.
The invention has the advantages and beneficial effects that:
the electromagnetic drop hammer pile driving testing machine with the controllable drop distance adapts to the requirement of a model test by reducing the size of the traditional pile driver, and the pile driving equipment can accurately determine the pile driving position and solve the problem of inapplicability of the traditional pile driver to the model test. This pile test machine pile hammer snatchs to lift and the release of pile hammer is accomplished through electric cabinet control electromagnet automatically, does not need manual operation, and the pile hammer reciprocates simultaneously and also is accomplished by electric cabinet control lead screw lift. The pile hammer can be adjusted in weight by adding a balance weight, and the lifting height can be adjusted randomly within the stroke range. The testing machine is used for carrying out model test, so that the accuracy of the test result can be greatly improved. This pile testing machine is provided with the stake pipe centralizer, and the stake pipe need not pre-buried, and the pile hammer reciprocates in the centralizer and avoids the pile driving in-process to deviate from and cause the potential safety hazard, and the security in the test process has effectively been improved to the stake pipe centralizer. The electromagnetic drop hammer pile driving testing machine with the controllable drop distance has the advantages of flexible operation, safe use, capability of accurately controlling the drop distance of the pile hammer, the pile driving frequency, the weight of the pile hammer and the like through the design of the structure of the device.
Drawings
Fig. 1 is a schematic perspective view of an electromagnetic drop hammer piling tester with accurately controllable drop distance.
Fig. 2 is a schematic view of the main view structure of the electromagnetic drop hammer pile driving test machine with accurately controllable drop distance.
Fig. 3 is a schematic diagram of an electromagnetic chuck structure.
Fig. 4 is a schematic structural view of the guide centralizer.
Wherein: 1 is a vertical screw, 2 is a movable support, 3 is a limit frame, 4 is a transverse pulley, and 5 is a transverse guide rail; the device comprises a movable frame 6, an electric cabinet 7, a mounting plate 8, a first driving motor 9, an electromagnetic chuck 10, an electromagnet 10-1, a centering rod hole 10-2, a second driving motor 11, a connecting rod 12, a transverse screw 13, a longitudinal pulley 14, a longitudinal guide rail 15, a heavy hammer 16, a pile cap 17, a guide centralizer 18, a centering rod 18-1, a bottom ring 18-2, a centering arm 18-3, a pile body 19 and a screw lifter 20.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
The technical scheme of the invention is further explained by combining specific examples.
Examples
As shown in fig. 1, an electromagnetic drop hammer piling tester with controllable drop distance includes: the device comprises a screw rod 1, a movable support 2, a limiting frame 3, a transverse pulley 4, a transverse guide rail 5, a movable frame 6, an electric cabinet 7, a mounting plate 8, a first driving motor 9, an electromagnetic chuck 10, a second driving motor 11, a connecting rod 12, a transverse screw rod 13, a longitudinal pulley 14, a longitudinal guide rail 15, a heavy hammer 16, a pile cap 17, a guide centralizer 18, a pile body 19 and a screw rod lifter 20.
The embodiment of the invention is specifically that a longitudinal guide rail 15 is laid on a test soil body and used for enabling a movable frame 6 to longitudinally move above the soil body through a longitudinal pulley 14 and the longitudinal guide rail 15, a movable support 2, a transverse pulley 4 and a transverse guide rail 5 are arranged at the top of the movable frame 6, the movable support 2 transversely moves above the soil body through the transverse pulley 4 and the transverse guide rail 5 to determine the piling position, the longitudinal movement is realized by controlling the longitudinal pulley 14 through an electric cabinet 7, and the transverse movement is realized by controlling a second driving motor 11 through the electric cabinet 7;
the screw rod lifter 20 is arranged on the movable support 2 through a flange, the screw rod 1 can move up and down in the vertical direction under the drive of the screw rod lifter 20, the electromagnetic chuck 10 is connected to the lower end of the screw rod 1, the electromagnet 10-1 is arranged on the electromagnetic chuck, and a centering rod hole 10-2 matched with the centering rod 18-1 is formed in the edge of the electromagnet 10, so that the electromagnetic chuck 10 is in sliding connection with the centering rod 18-1.
A transverse screw 13 driven by a first driving motor 9 is arranged on one side of the movable frame 6, the lower end of the connecting rod 12 is connected with the transverse screw 13, the upper end of the connecting rod is connected with the movable support 2, and the transverse screw 13 is driven by the first driving motor 9 to rotate so as to drive the movable support 2 to move along the transverse guide rail 5;
below the mobile carriage 2 a guide centralizer 18 is arranged for determining the piling position. The guide centralizer 18 comprises centralizing rods 18-1, a bottom ring 18-2 and centralizing arms 18-3, wherein the bottom end of each centralizing rod 18-1 is arranged along the vertical direction and fixedly connected with the bottom ring 18-2, one end of each centralizing arm 18-3 is fixed on the bottom ring 18-2, and the other end of each centralizing arm extends out of the center of the bottom ring 18-2. Then the heavy hammer 16, the pile cap 17 and the pile body 19 are all placed in the guiding centralizer 18 according to the figure 1, the pile pipe does not need to be pre-embedded, the guiding centralizer 18 can ensure that the pile body keeps a vertical state in the pile sinking process, and the pile hammer can not fall off the pile driver in the pile sinking process.
According to the test requirements, the weight and the falling distance of the pile hammer 16 are determined, the weight can be adjusted by increasing or decreasing the balance weight, and the falling distance is controlled by the combined action of the electromagnetic chuck 10, the screw rod lifter 20 and the electric cabinet 7. The electromagnetic chuck 10 grabs the pile hammer 16 by utilizing the electromagnetic action, and then the rotation of the screw rod is converted into the up-and-down movement of the electromagnetic chuck 10 to realize the adjustment of the drop distance, wherein the up-and-down movement distance of the electromagnetic chuck 10 is determined by the parameters input by the electric cabinet 7.
According to the invention, the electric control box 7 is used for inputting a movement distance parameter to accurately control the longitudinal movement of the movable frame 6 and the transverse movement of the movable support 2, so that the piling position is accurately controlled, meanwhile, the screw rod lifter 20 and the electromagnetic chuck 10 are also accurately controlled through the electric control box 7, the accurate control of the pile hammer drop distance and the piling frequency can be realized by setting a test parameter, and the model test process is automatically controlled by an electric control system without manual operation.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.
Claims (9)
1. The utility model provides an accurate controllable electromagnetism of drop distance falls hammer pile test machine which characterized in that: the device comprises a movable frame, a longitudinal guide rail, a transverse guide rail, a movable bracket, a connecting rod, a transverse lead screw, a lead screw lifter, a vertical lead screw, an electromagnetic chuck, a heavy hammer and a guide centralizer;
the movable frame is movably arranged on the longitudinal guide rail through a longitudinal pulley at the bottom, the upper end of the movable frame is provided with a transverse guide rail, the movable support is movably arranged on the transverse guide rail through a transverse pulley at the bottom, one side of the movable frame is provided with a transverse lead screw driven by a first driving motor, the lower end of the connecting rod is connected with the transverse lead screw, and the upper end of the connecting rod is connected with the movable support;
the movable support is provided with a screw rod lifter driven by a second driving motor, the vertical screw rod penetrates through the movable support along the vertical direction and is hinged with the screw rod lifter, the electromagnetic chuck is arranged at the lower end of the vertical screw rod, and the heavy hammer is adsorbed at the lower end of the electromagnetic chuck through magnetic force;
the guide centralizer is arranged below the movable support.
2. The electromagnetic drop hammer piling tester with the accurately controllable drop distance according to claim 1, is characterized in that: and a limiting frame for limiting the movable support is arranged on the transverse guide rail.
3. The electromagnetic drop hammer piling tester with the accurately controllable drop distance according to claim 1, is characterized in that: the electromagnet is provided with an electromagnet, and a centering rod hole matched with the centering rod is formed in the edge of the electromagnet, so that the electromagnet is in sliding connection with the centering rod.
4. The electromagnetic drop hammer piling tester with the accurately controllable drop distance according to claim 1, is characterized in that: the guide centralizer comprises centralizing rods, a bottom ring and centralizing arms, wherein the quantity of the centralizing rods is more than or equal to 3, the bottom end of each centralizing rod is fixedly connected with the bottom ring in the vertical direction, the quantity of the centralizing arms is more than or equal to 3, and one end of each centralizing arm is fixed on the bottom ring, and the other end of each centralizing arm extends out of the circle center of the bottom ring.
5. The electromagnetic drop hammer piling tester with the accurately controllable drop distance according to claim 1, is characterized in that: and a pile body is arranged below the inner part of the guide centralizer, and the pile body is contacted with the centralizing arm to realize positioning.
6. The electromagnetic drop hammer piling tester with the accurately controllable drop distance according to claim 5, is characterized in that: and a pile cap is arranged at the upper end of the pile body.
7. The electromagnetic drop hammer piling tester with the accurately controllable drop distance according to claim 1, is characterized in that: and the movable frame is provided with an electric cabinet, and the electric cabinet is in communication connection with the first driving motor and the second driving motor to realize the transverse movement of the movable support and the control of the screw rod lifter.
8. The electromagnetic drop hammer piling tester with the accurately controllable drop distance according to claim 1, is characterized in that: the longitudinal pulley is an electric pulley, and the electric cabinet is in communication connection with the electric pulley, so that the longitudinal movement of the movable frame is controlled.
9. The electromagnetic drop hammer piling tester with the accurately controllable drop distance according to claim 1, is characterized in that: the electric cabinet is in communication connection with a control circuit of the electromagnet, so that the work of the electromagnet is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110419265.5A CN112962692A (en) | 2021-04-19 | 2021-04-19 | Electromagnetic drop hammer piling testing machine with accurately controllable drop distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110419265.5A CN112962692A (en) | 2021-04-19 | 2021-04-19 | Electromagnetic drop hammer piling testing machine with accurately controllable drop distance |
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| CN112962692A true CN112962692A (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110419265.5A Pending CN112962692A (en) | 2021-04-19 | 2021-04-19 | Electromagnetic drop hammer piling testing machine with accurately controllable drop distance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215058A (en) * | 2021-12-14 | 2022-03-22 | 四川中核艾瑞特工程检测有限公司 | Piling tool and method for detecting foundation pile in narrow space |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432250Y (en) * | 2000-07-20 | 2001-05-30 | 蔡崇晓 | Piling machine traveller machine base |
| JP2006112106A (en) * | 2004-10-14 | 2006-04-27 | Kanematsu Nnk Corp | Drop hammer type pile driver |
| CN202899136U (en) * | 2012-09-21 | 2013-04-24 | 浙江大学城市学院 | Rail sliding type piling machine |
| CN208136913U (en) * | 2018-03-30 | 2018-11-23 | 黄河科技学院 | A kind of bridge construction piling equipment |
| CN209585042U (en) * | 2019-01-15 | 2019-11-05 | 孙建芬 | A kind of bridge construction pile driving equipment |
| CN211171964U (en) * | 2019-09-10 | 2020-08-04 | 张重 | Constructional engineering pile device |
| CN215715599U (en) * | 2021-04-19 | 2022-02-01 | 天津大学 | Electromagnetic drop hammer piling testing machine with accurately controllable drop distance |
-
2021
- 2021-04-19 CN CN202110419265.5A patent/CN112962692A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432250Y (en) * | 2000-07-20 | 2001-05-30 | 蔡崇晓 | Piling machine traveller machine base |
| JP2006112106A (en) * | 2004-10-14 | 2006-04-27 | Kanematsu Nnk Corp | Drop hammer type pile driver |
| CN202899136U (en) * | 2012-09-21 | 2013-04-24 | 浙江大学城市学院 | Rail sliding type piling machine |
| CN208136913U (en) * | 2018-03-30 | 2018-11-23 | 黄河科技学院 | A kind of bridge construction piling equipment |
| CN209585042U (en) * | 2019-01-15 | 2019-11-05 | 孙建芬 | A kind of bridge construction pile driving equipment |
| CN211171964U (en) * | 2019-09-10 | 2020-08-04 | 张重 | Constructional engineering pile device |
| CN215715599U (en) * | 2021-04-19 | 2022-02-01 | 天津大学 | Electromagnetic drop hammer piling testing machine with accurately controllable drop distance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215058A (en) * | 2021-12-14 | 2022-03-22 | 四川中核艾瑞特工程检测有限公司 | Piling tool and method for detecting foundation pile in narrow space |
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