Dynamic loading test device for pile foundation

Abstract

The utility model discloses a dynamic loading test device for a pile foundation, and relates to the technical field of dynamic loading test devices for pile foundations. The piling machine comprises a working table, wherein a piling lifting mechanism and a positioning mechanism are arranged on the working table; a plurality of universal wheels are rotatably connected to the bottom of the workbench, two first baffles are fixedly connected to the top of the workbench and located on the front side and the rear side of the workbench respectively, two second baffles are fixedly connected to the top of the workbench, a first hinge block is fixedly connected to the top of the workbench, and a second hinge block is fixedly connected to the top of the workbench. A first hydraulic cylinder is hinged to the top of the second hinge block, and a third hinge block is hinged to the top of the first hydraulic cylinder. Through the piling lifting mechanism, the problems that a hydraulic cylinder needs to be adopted to lift a heavy hammer with fixed mass to a high position, the operation is not convenient enough, and the power loading device of the pile foundation is prone to instability and shaking in the using process are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dynamic loading test devices for pile foundations, in particular to a dynamic loading test device for pile foundations. Background Art

[0002] During the use of the dynamic loading test device for pile foundations, it is necessary to lift the dynamic loading device for pile foundations to a high place so that the pile foundations can be rammed into the ground to meet the specific needs of different industrial production.

[0003] However, during use, the existing dynamic loading test device for pile foundations requires a hydraulic cylinder to lift a fixed-mass hammer to a high position and then quickly press the hammer down through impact force. The overall structure is complex and the operation is not convenient. During use, the dynamic loading device for pile foundations is prone to instability and shaking. Utility Model Content

[0004] The purpose of the utility model is to provide a dynamic loading test device for pile foundations. By setting up a pile driving lifting mechanism, the problem of instability and shaking easily occurring during the use of the dynamic loading device of the pile foundation due to the need to use a hydraulic cylinder to lift a heavy hammer of fixed mass to a high place and then quickly press the heavy hammer down by impact force is solved.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a dynamic loading test device for pile foundation, comprising a workbench, on which a pile driving lifting mechanism and a positioning mechanism are arranged;

[0007] The bottom of the workbench is rotatably connected to several universal wheels, and the top of the workbench is fixedly connected to two baffle 1s, which are respectively located at the front and rear sides of the workbench, and the top of the workbench is fixedly connected to two baffle 2s. The top of the workbench is fixedly connected to an articulated block 1, and the top of the workbench is fixedly connected to an articulated block 2. The top of the articulated block 2 is hingedly provided with a hydraulic cylinder 1, and the top of the hydraulic cylinder 1 is hingedly provided with an articulated block 3. The piling lifting mechanism includes a power assembly, a lifting assembly and an impact assembly, and the power assembly includes a fixed block fixedly connected to the top of the workbench.

[0008] Furthermore, the top of the fixed block is fixedly connected to the motor, the output shaft of the motor is fixedly connected to a rotating shaft, the two baffles are rotatably connected with a rotating shaft, the front side of the rotating shaft rotates through the outer wall of the front baffle one and is fixedly connected to the output shaft of the motor, the outer wall of the rotating shaft is fixedly connected to a take-up reel, a winding rope is wound on the outer wall of the take-up reel, and rollers are rotatably penetrated on the two baffles two, the top of the hinged block one is hingedly provided with a support column, the support column is provided with a slide groove one, and the top of the hinged block two slides and extends into the slide groove one.

[0009] Furthermore, the lifting assembly includes a hollow column arranged above the workbench, a T-shaped slot is provided on the top of the hollow column, and a slide groove 2 is provided on the left and right sides of the hollow column. The end of the winding rope is fixedly connected to a collision block, and a slide rod 1 is rotated and penetrated on the collision block, and the inner wall of the slide groove 2 is slidably connected to the slide rod 1.

[0010] Furthermore, the front side of the impact block is fixedly connected to two columnar limit blocks, and the outer walls of both blocks are rotatably connected to hooks, and the sides of the two hooks close to each other are fixedly connected to springs.

[0011] Furthermore, the impact assembly includes a lifting ear arranged between the two hooks, a falling block is slidably connected to the inner wall of the hollow column, the top of the falling block is fixedly connected to the lifting ear, and a sliding rod 2 is rotated and penetrates the falling block, and the left and right extensions of the sliding rod 2 respectively slide and extend into the two sliding grooves 2.

[0012] Furthermore, the positioning mechanism includes a plurality of hinge blocks four respectively fixedly connected to the front side and the rear side of the workbench, and the front side and the rear side of the workbench are both fixedly connected with hinge blocks five.

[0013] Furthermore, several articulated blocks four are hingedly provided with support rods on the side away from the workbench, two articulated blocks five are hingedly provided with articulated blocks six on the side away from the workbench, two articulated blocks six are fixedly connected with hydraulic cylinders two, and the two hydraulic cylinders two are hingedly provided with articulated blocks seven on the side away from each other.

[0014] Furthermore, two support rods are rotatably connected to the plurality of support rods, and two sides away from the workbench are fixedly connected to the two support rods respectively, and the bottoms of the two support rods are fixedly connected to a fixing plate.

[0015] The utility model has the following beneficial effects:

[0016] 1. By setting up a pile driving lifting mechanism, when the motor fixedly connected to the top of the fixed block is turned on, the rotation of the rotating shaft on the motor output shaft is used to realize the operation of the take-up reel, thereby driving the reeling and releasing of the reeling rope. The reeling and releasing of the reeling rope completes the up and down movement of the impact block fixedly connected to the end of the reel on the inner wall of the hollow column. When the impact block moves upward, the hooks connected to the outer walls of the two columnar limit blocks are rotated respectively. Through the cooperation of the V-shaped rod and the spring, the drop block fixedly connected to the bottom of the lifting ear is synchronously moved upward. When the impact block moves upward to a certain extent, the two hooks will touch the T-slot opened on the top of the hollow column. Under the cooperation of the V-shaped rod and the spring, the lifting ear fixedly connected to the top of the drop block is moved downward, thereby striking the cylindrical pile driving block set on the inner wall of the hollow column to reciprocate up and down to achieve the purpose of piling. On the one hand, the piling depth can be controlled more accurately. At the same time, the pile hammer can be accurately lifted to a specific height as needed to achieve control of the piling depth and improve the efficiency of piling.

[0017] 2. By setting a positioning mechanism, when the two hydraulic cylinders 2 are opened, the fixed plate on the device is fixed in a suitable position through the cooperation of the hinged block 6, the support rod, several hinged blocks 4, the support rod and the hinged block 8 hingedly set on the two hydraulic cylinders 2. On the one hand, it can effectively avoid subsequent construction problems caused by inaccurate pile positions, and at the same time avoid rework and repair work required due to pile position errors, saving manpower, material resources and time costs, improving construction efficiency and pile driving accuracy, and reducing the possibility of accidents.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the left side structure of the utility model;

[0023] Figure 4 It is an enlarged structural diagram of the utility model lifting assembly;

[0024] Figure 5 Utility Model Figure 3 Schematic diagram of the amplification mechanism of B in the figure.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1. Workbench; 101. Universal wheel; 102. Baffle 1; 103. Baffle 2; 104. Articulated block 1; 105. Articulated block 2; 106. Hydraulic cylinder 1; 107. Articulated block 3; 2. Pile driving and lifting mechanism; 21. Power assembly; 211. Fixed block; 212. Motor; 213. Rotating shaft; 214. Wire reel; 215. Rope reel; 216. Roller; 217. Support column; 218. Slide 1; 22. Lifting assembly; 221. Hollow column; 222. T-slot ; 223. Slide 2; 224. Impact block; 225. Slide bar 1; 226. Column limit block; 227. Hook; 228. Spring; 23. Impact assembly; 231. Lifting ear; 232. Drop block; 233. Slide bar 2; 234. Column piling block; 3. Positioning mechanism; 301. Articulated block 4; 302. Articulated block 5; 303. Support rod; 304. Articulated block 6; 305. Hydraulic cylinder 2; 306. Articulated block 7; 307. Support rod; 308. Fixed plate. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-5 As shown, the utility model is a dynamic loading test device for pile foundation, comprising a workbench 1, on which a pile driving lifting mechanism 2 and a positioning mechanism 3 are provided;

[0029] The bottom of the workbench 1 is rotatably connected to several universal wheels 101, the top of the workbench 1 is fixedly connected to two baffle plates 102, the two baffle plates 102 are respectively located on the front and rear sides of the workbench 1, the top of the workbench 1 is fixedly connected to two baffle plates 2 103, the top of the workbench 1 is fixedly connected to a hinge block 104, the top of the workbench 1 is fixedly connected to a hinge block 2 105, the top of the hinge block 2 105 is hingedly provided with a hydraulic cylinder 106, the top of the hydraulic cylinder 106 is hingedly provided with a hinge block 3 107, the piling lifting mechanism 2 includes a power component 21, a lifting component 22 and an impact component 23, the power component 21 includes a fixed block 211 fixedly connected to the top of the workbench 1.

[0030] Among them Figure 2 As shown, the top of the fixed block 211 is fixedly connected to the motor 212, and the output shaft of the motor 212 is fixedly connected to the rotating shaft 213. The rotating shaft 213 is rotatably connected between the two baffles 102. The front side of the rotating shaft 213 rotates and passes through the outer wall of the front baffle 102 and is fixedly connected to the output shaft of the motor 212. The outer wall of the rotating shaft 213 is fixedly connected to the wire reel 214, and a winding rope 215 is wound around the outer wall of the wire reel 214. The two baffles 103 are rotatably penetrated by rollers 216. The top of the hinged block 104 is hingedly provided with a support column 217, and the support column 217 is provided with a slide groove 1 218. The top of the hinged block 205 slides and extends into the slide groove 1 218.

[0031] By providing the lifting assembly 22 , the height of the pile driving can be flexibly adjusted according to different construction site conditions and pile types.

[0032] Among them Figure 4 As shown, the lifting assembly 22 includes a hollow column 221 arranged above the workbench 1, a T-slot 222 is provided on the top of the hollow column 221, and a second slide groove 223 is provided on the left and right sides of the hollow column 221. The end of the winding rope 215 is fixedly connected to the impact block 224, and a slide rod 1 225 is rotatably passed through the impact block 224, and the inner wall of the slide groove 223 is slidably connected to the slide rod 1 225.

[0033] By providing the hook 227 , the columnar piling block 234 can be lifted up and down in the hollow column 221 to achieve the effect of impacting.

[0034] Among them Figure 4 As shown, the front side of the impact block 224 is fixedly connected to two cylindrical limiting blocks 226. The outer walls of the two cylindrical limiting blocks 226 are rotatably connected to hooks 227, and the sides of the two hooks 227 close to each other are fixedly connected to springs 228.

[0035] By providing the impact assembly 23 , the pile hammer can be accurately lifted to a specific height as required, thereby achieving control over the piling depth.

[0036] Among them Figure 4 As shown, the impact assembly 23 includes a lifting ear 231 arranged between the two hooks 227, a falling block 232 is slidably connected to the inner wall of the hollow column 221, the top of the falling block 232 is fixedly connected to the lifting ear 231, and a sliding rod 233 is rotatably passed through the falling block 232, and the left and right extensions of the sliding rod 233 slide and extend into the two sliding grooves 223 respectively.

[0037] By providing the positioning mechanism 3, the pile position can be determined quickly and accurately, reducing the time for pile driver adjustment and waiting, and accelerating the construction progress.

[0038] Among them Figure 5 As shown, the positioning mechanism 3 includes a plurality of hinge blocks 301 fixedly connected to the front and rear sides of the workbench 1, and the front and rear sides of the workbench 1 are fixedly connected to hinge blocks 302.

[0039] By providing the second hydraulic cylinder 305, the fixing plate 308 can be stably supported on the ground, thereby achieving a stable support effect.

[0040] Among them Figure 5 As shown, several hinged blocks four 301 are hingedly provided with support rods 303 on the side away from the workbench 1, two hinged blocks five 302 are hingedly provided with hinged blocks six 304 on the side away from the workbench 1, and the two hinged blocks six 304 are fixedly connected with hydraulic cylinder two 305, and the two hydraulic cylinders two 305 are hingedly provided with hinged blocks seven 306 on the side away from each other.

[0041] By providing the fixing plate 308 , the dynamic loading test device for the pile foundation can be firmly fixed on the ground, thus achieving a stable support effect.

[0042] Among them Figure 3 As shown, two support rods 307 are rotatably connected to the plurality of support rods 303 , and the two hinge blocks 306 are fixedly connected to the two support rods 307 on one side away from the workbench 1 , and the bottoms of the two support rods 307 are fixedly connected to a fixing plate 308 .

[0043] A specific application of this embodiment is as follows: when in use, first place the device in a suitable position, open the two hydraulic cylinders 2 305, and fix the fixed plate 309 on the device in a suitable position through the cooperation of the hinge block 6 304, the support rod 307, several hinge blocks 4 301, the support rod 303 and the hinge block 8 308 hingedly arranged on the two hydraulic cylinders 2 305. At this time, turn on the motor 212 fixedly connected to the top of the fixed block 211, and realize the working operation of the winding reel 214 by rotating the rotating shaft 213 on the output shaft of the motor 212, and then drive the winding rope 215 to be retracted and released. The winding rope 215 is retracted and released to complete the up and down movement of the impact block 224 fixedly connected to the end of the winding rope 215 on the inner wall of the hollow column 221. When the impact block 224 moves upward, the hooks 227 connected to the outer walls of the two columnar limit blocks 226 are rotated respectively, and the hooks 227 connected to the outer walls of the two columnar limit blocks 226 are rotated respectively. With the cooperation of the two hooks 227 and the spring 228, the ear 231 fixedly connected to the top of the falling block 232 is moved downward, and then hits the cylindrical pile driving block 234 set on the inner wall of the hollow column 221 to move up and down to achieve the purpose of piling. On the one hand, the piling depth can be controlled more accurately, and the pile hammer can be accurately lifted to a specific height as needed to control the piling depth. On the other hand, it can also effectively avoid subsequent construction problems caused by inaccurate pile position, and at the same time avoid rework and repair work required due to pile position error, saving manpower, material and time costs, and improving construction efficiency and pile driving accuracy.

[0044] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A dynamic loading test device for pile foundation, comprising a workbench (1), characterized in that: The workbench (1) is provided with a piling lifting mechanism (2) and a positioning mechanism (3); The bottom of the workbench (1) is rotatably connected to a plurality of universal wheels (101); the top of the workbench (1) is fixedly connected to two baffles (102); the two baffles (102) are respectively located at the front and rear sides of the workbench (1); the top of the workbench (1) is fixedly connected to two baffles (103); the top of the workbench (1) is fixedly connected to an articulated block (104); the top of the workbench (1) is fixedly connected to an articulated block (105); the top of the articulated block (105) is articulated with a hydraulic cylinder (106); the top of the hydraulic cylinder (106) is articulated with an articulated block (107); the piling lifting mechanism (2) comprises a power assembly (21), a lifting assembly (22) and an impact assembly (23); the power assembly (21) comprises a fixed block (211) fixedly connected to the top of the workbench (1).

2. A dynamic loading test device for pile foundation according to claim 1, characterized in that: The top of the fixed block (211) is fixedly connected to a motor (212), the output shaft of the motor (212) is fixedly connected to a rotating shaft (213), the two baffles (102) are rotatably connected with a rotating shaft (213), the front side of the rotating shaft (213) rotates and passes through the outer wall of the front baffle (102) and is fixedly connected to the output shaft of the motor (212), the outer wall of the rotating shaft (213) is fixedly connected to a winding reel (214), the outer wall of the winding reel (214) is wound with a winding rope (215), the two baffles (103) are rotatably passed through rollers (216), the top of the hinged block (104) is hingedly provided with a support column (217), the support column (217) is provided with a slide groove (218), and the top of the hinged block (105) slides and extends into the slide groove (218).

3. A dynamic loading test device for pile foundation according to claim 2, characterized in that: The lifting assembly (22) includes a hollow column (221) arranged above the workbench (1), a T-shaped slot (222) is provided on the top of the hollow column (221), a second slide groove (223) is provided on the left and right sides of the hollow column (221), the end of the winding rope (215) is fixedly connected to a collision block (224), a sliding rod (225) is rotatably passed through the collision block (224), and the inner wall of the second slide groove (223) is slidably connected to the sliding rod (225).

4. A dynamic loading test device for pile foundation according to claim 3, characterized in that: The front side of the impact block (224) is fixedly connected to two columnar limiting blocks (226); the outer walls of the two columnar limiting blocks (226) are both rotatably connected to hooks (227); and the sides of the two hooks (227) close to each other are fixedly connected to a spring (228).

5. A dynamic loading test device for pile foundation according to claim 4, characterized in that: The impact assembly (23) includes a lifting ear (231) arranged between two hooks (227); a falling block (232) is slidably connected to the inner wall of the hollow column (221); the top of the falling block (232) is fixedly connected to the lifting ear (231); a sliding rod (233) is rotatably passed through the falling block (232); the left and right extensions of the sliding rod (233) respectively slide and extend into the two sliding grooves (223).

6. A dynamic loading test device for pile foundation according to claim 5, characterized in that: The positioning mechanism (3) comprises a plurality of hinge blocks (301) respectively fixedly connected to the front and rear sides of the workbench (1), and the front and rear sides of the workbench (1) are both fixedly connected to hinge blocks (302).

7. A dynamic loading test device for pile foundation according to claim 6, characterized in that: Several of the hinge blocks four (301) are hingedly provided with a support rod (303) on the side away from the workbench (1), two of the hinge blocks five (302) are hingedly provided with a hinge block six (304) on the side away from the workbench (1), the two hinge blocks six (304) are fixedly connected with a hydraulic cylinder two (305), and the two hydraulic cylinders two (305) are hingedly provided with a hinge block seven (306) on the side away from each other.

8. A dynamic loading test device for pile foundation according to claim 7, characterized in that: Two support rods (307) are rotatably connected to a plurality of the support rods (303), and the two hinge blocks (306) are fixedly connected to the two support rods (307) on one side away from the workbench (1), and the bottoms of the two support rods (307) are fixedly connected to a fixing plate (308).

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