CN220301409U - Impact piling device in geotechnical centrifuge - Google Patents
Impact piling device in geotechnical centrifuge Download PDFInfo
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- CN220301409U CN220301409U CN202322007822.XU CN202322007822U CN220301409U CN 220301409 U CN220301409 U CN 220301409U CN 202322007822 U CN202322007822 U CN 202322007822U CN 220301409 U CN220301409 U CN 220301409U
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- 230000000670 limiting effect Effects 0.000 claims description 41
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Abstract
The utility model relates to the technical field of impact piling devices, in particular to an impact piling device in a geotechnical centrifuge, which comprises: the centrifugal machine body comprises an equipment body, and a manipulator is movably connected to the top end of the equipment body; the manipulator bottom is connected with the impact structure, including the roof, roof bottom both sides are connected with the guide bar. The utility model fixes the pile bodies to be driven to the appointed position and is matched with the mechanical arm for use, so that the pile driving operation can be carried out on a plurality of pile bodies under the condition that the equipment body is not stopped, the problem that the impact pile driving is difficult to realize under the centrifugal field is conveniently solved by using high-pressure air as a working medium, the pile driving energy can be regulated by the counterweight at the top of the cylinder body and the pressure of the compressed air is regulated, and the movement state of the cylinder body can be conveniently monitored by the position sensors at the upper part and the lower part of one side of the cylinder body, so that the continuity of the pile driving operation can be ensured.
Description
Technical Field
The utility model relates to the technical field of impact piling devices, in particular to an impact piling device in a geotechnical centrifuge.
Background
The geotechnical centrifuge is a test device for geotechnical engineering physical simulation test. The basic principle is that centrifugal acceleration is generated by rotation of a rotary arm of a centrifugal machine, an artificial high-gravity field is provided, a main body to be studied is built into a model with a certain specific rule, and the model is simulated by increasing self-weight stress of soil body through the centrifugal acceleration so that the prototype and the model reach equal stress strain and similar deformation.
In the geotechnical centrifuge, the pile driving working condition is required to be simulated, and due to the influence of a high gravity field, the current method of hydrostatic pressure of a hydraulic cylinder or excitation of an eccentric wheel is mostly adopted, so that the pile driving process in a small-size pile or a soft soil foundation can be simulated. However, no effective means for simulating the working conditions of impact piling such as oil hammers, air hammers and the like exists at present. In a specific scientific research process, including the impact on the pile driving process, the impact on the pile body, the interaction between pile and soil, and the impact on other structures, the development of a new device for simulating the impact pile driving process is needed.
Disclosure of Invention
The utility model aims to provide an impact piling device in a geotechnical centrifuge, which aims to solve the problem that no effective means for simulating the working conditions of impact piling such as an oil hammer, an air hammer and the like in the background technology exist at present.
In order to achieve the above purpose, the present utility model provides a technical scheme, an impact piling device in a geotechnical centrifuge, comprising:
the centrifugal machine body comprises an equipment body, and a manipulator is movably connected to the top end of the equipment body;
the manipulator bottom is connected with the impact structure, including the roof, roof bottom both sides are connected with the guide bar, the guide bar inboard is connected with the cylinder body, the guide bar bottom is connected with the dog, cylinder body one side is provided with position sensor, the cylinder body top is connected with the screw rod, the balancing weight has been cup jointed to the screw rod outer wall, the screw rod surface rotates and is connected with the nut, cylinder body bottom inside is provided with the cylinder pole, the cylinder pole below is provided with the pile body.
Preferably, the movement direction of the manipulator is set to XYZ three-way movement, and a fixed plate is arranged between the guide rod and the air cylinder body for connection.
Preferably, the position sensors are arranged in two groups and are respectively connected to the upper end and the lower end of one side of the cylinder body, and one end of the cylinder body is provided with an air pump, a high-pressure air tank and an electromagnetic reversing valve.
Preferably, the air pump that equipment body one end set up injects compressed air into the high-pressure gas pitcher in through the electromagnetic directional valve to the injection high-pressure gas in the cylinder body, receive high-pressure gas to support the cylinder pole in the cylinder, the other end of cylinder is provided with one-way choke valve.
Preferably, the roof top surface is connected with limit structure, limit structure is including the holding ring, holding ring one side internally connected with spacing axle, spacing inside swing joint of axle has the threaded rod, threaded rod one end is many kinds of to be connected with the bearing ring, bearing ring one end is connected with the stopper.
Preferably, a groove is formed in one side of the inner wall of the positioning ring, the size of the groove formed in the positioning ring is the same as that of the limiting block, a through hole is formed in one side of the inner wall of the groove formed in the positioning ring, and the outer surface of the limiting shaft is connected with the inner wall of the through hole formed in the top plate.
Preferably, the inner surface of the limiting shaft is provided with threads and meshed with the threaded rod, a limiting groove is formed in one side of the manipulator, and the limiting block is inserted into the limiting groove formed in the manipulator.
Compared with the prior art, the utility model has the beneficial effects that:
1. through fixing the pile body that needs to drive to the assigned position to note the position coordinate that the pile body is located, then utilize the manipulator to remove the roof to the position coordinate that the pile body is located, upwards bounce the cylinder body, the reaction force is beaten the pile body into the soil, repeatedly pile the action, use with the manipulator cooperation, can carry out pile operation to many pile bodies under the condition that equipment body does not shut down, utilize highly-compressed air as working medium, the convenient problem that impact pile is difficult to realize under the centrifugal field that has solved, through the counter weight at cylinder body top and the pressure of adjustment compressed air, can adjust the pile driving energy, through the position sensor of cylinder body one side upper portion and lower part, conveniently monitor cylinder body motion state, can guarantee pile operation's continuity.
2. Through inserting the manipulator one end and locating inside the holding ring, then rotate the threaded rod and make its meshing remove in the screw thread that spacing axle internal surface set up, make it remain horizontal migration all the time when making spacing axle carry out spacing to the threaded rod to at its bearing ring one end rotation when the threaded rod rotates, and make the threaded rod support the stopper that the bearing ring other end is connected insert locate the spacing inslot portion that the manipulator offered, thereby carry out spacing effect to the manipulator, make it can separate split between manipulator and the roof alone, and avoid utilizing the screw thread to rotate to connect and lead to the smooth silk after long-time use, cause the problem that can not normal coupling.
Drawings
FIG. 1 is a schematic perspective view of the structure of the present utility model;
FIG. 2 is a schematic view in elevation with a bottom view and cross-section of the structure of the present utility model;
FIG. 3 is a schematic plan view of a front part of the structure of the present utility model;
FIG. 4 is a schematic partial perspective view of a side view of the structure of the present utility model;
fig. 5 is a top view partially cut-away perspective schematic illustration of the structure of the present utility model.
In the figure: 1. a centrifuge body; 11. an equipment body; 12. a manipulator; 2. an impact structure; 21. a top plate; 22. a guide rod; 23. a cylinder body; 24. a stop block; 25. a position sensor; 26. a screw; 27. balancing weight; 28. a nut; 29. a cylinder rod; 210. a pile body; 3. a limit structure; 31. a positioning ring; 32. a limiting shaft; 33. a threaded rod; 34. a bearing ring; 35. and a limiting block.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, an embodiment of the present utility model is provided:
an impact piling device in a geotechnical centrifuge, comprising:
the centrifugal machine body 1 comprises an equipment body 11, the top end of the equipment body 11 is movably connected with a manipulator 12, mechanical elements in the manipulator 12 are of the prior art, and can be purchased in the market and are not used as technical protection points of the application, so that excessive statements are not made;
the bottom of the manipulator 12 is connected with the impact structure 2, including roof 21, roof 21 bottom both sides are connected with guide bar 22, and guide bar 22 inboard is connected with cylinder body 23, and guide bar 22 bottom is connected with dog 24, and cylinder body 23 one side is provided with position sensor 25, and cylinder body 23 top is connected with screw rod 26, and the screw rod 26 outer wall has cup jointed balancing weight 27, and screw rod 26 surface rotation is connected with nut 28, and cylinder body 23 bottom is inside to be provided with cylinder pole 29, and cylinder pole 29 below is provided with pile body 210.
Further, the movement direction of the manipulator 12 is set to be XYZ three-way movement, and a fixed plate is arranged between the guide rod 22 and the cylinder body 23 for connection, so that the limit effect on the cylinder body 23 is realized through the guide rod 22.
Further, the position sensors 25 are arranged in two groups and are respectively connected to the upper end and the lower end of one side of the cylinder body 23, and an air pump, a high-pressure air tank and an electromagnetic reversing valve are arranged at one end of the cylinder body 23, so that the monitoring effect on the cylinder rod 29 through the position sensors 25 arranged at the upper end and the lower end of one side of the cylinder body 23 is realized.
Further, the air pump that equipment body 11 one end set up injects compressed air into the high-pressure gas jar in to the cylinder body 23 through the electromagnetic directional valve in, receives high-pressure gas in the cylinder and supports cylinder pole 29, and the other end of cylinder is provided with one-way choke valve, realizes supporting and controlling action to cylinder pole 29 through cylinder body 23.
Further, the top end surface of the top plate 21 is connected with a limiting structure 3, the limiting structure 3 comprises a positioning ring 31, one side of the positioning ring 31 is internally connected with a limiting shaft 32, a threaded rod 33 is movably connected inside the limiting shaft 32, one end of the threaded rod 33 is variously connected with a bearing ring 34, one end of the bearing ring 34 is connected with a limiting block 35, and the limiting effect on the manipulator 12 is achieved, so that the manipulator 12 and the top plate 21 can be independently split.
Further, a groove is formed in one side of the inner wall of the positioning ring 31, the size of the groove formed in the positioning ring 31 is the same as that of the limiting block 35, a through hole is formed in one side of the inner wall of the groove formed in the positioning ring 31, the outer surface of the limiting shaft 32 is connected to the inner wall of the through hole formed in the top plate 21, and limiting of the limiting shaft 32 through the through hole formed in the top plate 21 is achieved.
Further, the inner surface of the limiting shaft 32 is provided with threads and is meshed with the threaded rod 33, a limiting groove is formed in one side of the manipulator 12, the limiting block 35 is inserted into the limiting groove formed in the manipulator 12, and the limiting effect on the manipulator 12 is achieved through the limiting block 35 inserted into the limiting groove formed in the manipulator 12.
Working principle: when the impact pile is driven in the geotechnical centrifuge, the pile body 210 to be driven is fixed to a designated position, the position coordinate of the pile body 210 is recorded, then the manipulator 12 is used for moving the top plate 21 to the position coordinate of the pile body 210, the cylinder body 23 is pressed on the top end surface of the pile body 210, then the reversing valve is opened, high-pressure gas is filled into the cylinder body 23, the cylinder rod 29 rapidly stretches out, the cylinder body 23 is sprung up, the pile body 210 is driven into the soil by the reaction force, the position sensor 25 arranged at the lower position of one side of the cylinder body 23 detects that the cylinder rod 29 moves to the bottom dead center in the stretching process of the cylinder rod 29, the reversing valve stops supplying gas to the cylinder body 23, when the cylinder body 23 falls down and contacts the pile body 210 again, the rod cavity of the cylinder body 23 enters the air through the one-way throttle valve, the cylinder rod 29 slowly retracts into the cylinder body 23, and when the position sensor 25 at the upper position of one side of the cylinder body 23 detects that the cylinder rod 29 moves to the top dead center, the reversing valve starts to charge the cylinder body 23, and the action is repeated.
When the impact piling device in the geotechnical centrifuge is installed, one end of the manipulator 12 is inserted into the positioning ring 31, then the threaded rod 33 is rotated to enable the threaded rod 33 to be meshed with threads arranged on the inner surface of the limiting shaft 32, the threaded rod 33 is enabled to always keep horizontally moving when being limited by the limiting shaft 32, one end of the threaded rod 33 rotates, the threaded rod 33 supports one end of the bearing ring 34 to rotate, a limiting block 35 connected with the other end of the bearing ring 34 is inserted into a limiting groove formed in the manipulator 12, the manipulator 12 is limited, the manipulator 12 and the top plate 21 can be independently split, and the problem that the manipulator 12 and the top plate 21 cannot be normally connected due to sliding wires after long-time use caused by rotation connection by the threads is avoided.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. An impact piling device in a geotechnical centrifuge, comprising:
the centrifugal machine body (1) comprises an equipment body (11), and a manipulator (12) is movably connected to the top end of the equipment body (11);
the utility model provides a manipulator (12) bottom is connected with impact structure (2), including roof (21), roof (21) bottom both sides are connected with guide bar (22), guide bar (22) inboard is connected with cylinder body (23), guide bar (22) bottom is connected with dog (24), cylinder body (23) one side is provided with position sensor (25), cylinder body (23) top is connected with screw rod (26), screw rod (26) outer wall has cup jointed balancing weight (27), screw rod (26) surface rotation is connected with nut (28), cylinder body (23) bottom inside is provided with cylinder pole (29), cylinder pole (29) below is provided with pile body (210).
2. The impact pile driving device in a geotechnical centrifuge according to claim 1, wherein: the movement direction of the manipulator (12) is set to XYZ three-way movement, and a fixed plate is arranged between the guide rod (22) and the cylinder body (23) for connection.
3. The impact pile driving device in a geotechnical centrifuge according to claim 1, wherein: the position sensors (25) are arranged in two groups and are respectively connected to the upper end and the lower end of one side of the cylinder body (23), and one end of the cylinder body (23) is provided with an air pump, a high-pressure air tank and an electromagnetic reversing valve.
4. The impact pile driving device in a geotechnical centrifuge according to claim 1, wherein: the air pump that equipment body (11) one end set up injects compressed air into high-pressure gas pitcher in through electromagnetic directional valve to the injection high-pressure gas in cylinder body (23), receive high-pressure gas to support cylinder pole (29) in the cylinder, the other end of cylinder is provided with one-way choke valve.
5. The impact pile driving device in a geotechnical centrifuge according to claim 1, wherein: the novel bearing structure is characterized in that a limiting structure (3) is connected to the top end surface of the top plate (21), the limiting structure (3) comprises a positioning ring (31), a limiting shaft (32) is connected to one side of the positioning ring (31) in an inner mode, a threaded rod (33) is movably connected to the inside of the limiting shaft (32), a plurality of bearing rings (34) are connected to one end of the threaded rod (33), and a limiting block (35) is connected to one end of the bearing ring (34).
6. The impact pile driving device in a geotechnical centrifuge according to claim 5, wherein: the positioning ring (31) is provided with a groove on one side of the inner wall, the size of the groove formed in the positioning ring (31) is the same as that of the limiting block (35), the side of the inner wall of the groove formed in the positioning ring (31) is provided with a through hole, and the outer surface of the limiting shaft (32) is connected with the inner wall of the through hole formed in the top plate (21).
7. The impact pile driving device in a geotechnical centrifuge according to claim 5, wherein: the inner surface of the limiting shaft (32) is provided with threads and meshed with the threaded rod (33), a limiting groove is formed in one side of the manipulator (12), and the limiting block (35) is inserted into the limiting groove formed in the manipulator (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322007822.XU CN220301409U (en) | 2023-07-28 | 2023-07-28 | Impact piling device in geotechnical centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322007822.XU CN220301409U (en) | 2023-07-28 | 2023-07-28 | Impact piling device in geotechnical centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220301409U true CN220301409U (en) | 2024-01-05 |
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ID=89350553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322007822.XU Active CN220301409U (en) | 2023-07-28 | 2023-07-28 | Impact piling device in geotechnical centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220301409U (en) |
-
2023
- 2023-07-28 CN CN202322007822.XU patent/CN220301409U/en active Active
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