Deviation correction pile clamping mechanism, pile pressing mechanism and pile pressing machine

Abstract

The utility model discloses a deviation rectifying pile clamping mechanism, a pile pressing mechanism and a pile pressing machine, the deviation rectifying pile clamping mechanism comprises a frame, at least one pile clamping device and at least one deflection driving piece, the frame is provided with an installation cavity, and the pile clamping device is movably installed in the installation cavity; the deflection driving piece is installed on the frame and used for driving the pile clamping device to deflect by a preset angle around the vertical central axis of the pile clamping device. When the pile clamping device clamps the precast pile for pile sinking construction and the position of the precast pile in the horizontal direction deviates, the deflection driving piece drives the pile clamping device and the precast pile to deflect by a certain angle together, the position of the precast pile in the horizontal direction is corrected, and it is ensured that the actual sinking position of the precast pile is matched with the preset pile position; the position accuracy of pile sinking is improved, and the construction quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of prefabricated pile construction equipment, in particular to a deviation-correcting pile clamping mechanism, a pile pressing mechanism and a pile pressing machine. Background Art

[0002] Prefabricated retaining piles are piles prefabricated in accordance with design requirements at the factory or construction site. They are transported to the construction site and driven into the ground to a predetermined depth using a pile driver. Adjacent prefabricated retaining piles are horizontally spliced ​​to form a pile wall structure with a water-stopping effect. During the on-site construction process, due to the influence of the underground soil environment and the construction operation, it is easy for the actual position of the prefabricated retaining piles after construction to deviate from the preset pile position in the horizontal direction, resulting in the two horizontal splicing surfaces between adjacent prefabricated retaining piles not fitting together, and thus unable to achieve horizontal splicing, reducing the overall structural strength of the pile wall. In addition, it will also cause a larger splicing gap between the two horizontal splicing surfaces, resulting in poor water-stopping and anti-seepage effects of the pile wall, which cannot meet the construction requirements.

[0003] The existing pile driver usually includes an upper bracket, a base, a plurality of guide columns arranged between the upper bracket and the base, and an integral chuck that moves up and down along the guide columns. The integral chuck is used to clamp the pile body during operation. The integral chuck includes a hollow chuck body, which is an integral structure. A plurality of chambers are evenly arranged along the inner side of the chuck body, and a clamping assembly is arranged in the chamber; and a pile driving cylinder arranged between the upper bracket and the integral chuck is used to press the clamped pile body into the foundation during operation. Although this type of pile driver can clamp the pile body during construction and press the clamped pile body into the foundation, it cannot correct the deviation of the horizontal position of the prefabricated retaining pile during construction, resulting in failure to meet the construction requirements. Utility Model Content

[0004] The utility model aims to provide a pile clamping mechanism for a pile driver which can correct the position of a precast pile in the horizontal direction so that the actual sunk position of the precast pile coincides with the preset pile position, so as to solve the problem in the background technology that the existing pile driver cannot adjust the position of the precast pile in the horizontal direction, so that the actual sunk position of the precast pile deviates from the preset pile position.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a deflection correction pile clamping mechanism, comprising: a frame, the frame is provided with an installation cavity; at least one pile clamp, the pile clamp is movably installed in the installation cavity; at least one deflection driving member, which is installed on the frame to drive the pile clamp to deflect around its own vertical center axis to a predetermined angle. Preferably, a guide assembly is provided between the frame and the pile clamp to guide the pile clamp to deflect around its own vertical center axis.

[0007] Preferably, the guide assembly comprises a first arc-shaped guide block provided on the frame, and a second arc-shaped guide block provided on the pile clamp and matched with the arc surface of the first arc-shaped guide block.

[0008] Preferably, the second arc-shaped guide block is closer to the vertical center axis of the pile clamp than the first arc-shaped guide block; and / or, the pile clamp is further provided with a limiter for limiting the vertical movement of the pile clamp, and the limiter and the vertical projection of the first arc-shaped guide block at least partially overlap and the two are against each other; and / or, there are multiple guide assemblies and they are arranged in a ring around the vertical center axis of the pile clamp; and / or, the top and bottom of the pile clamp are respectively provided with guide assemblies.

[0009] Preferably, the deflection drive member is one of a hydraulic cylinder, a gas cylinder or an electric cylinder, one end of the deflection drive member is hinged to the frame, and the other end of the deflection drive member is hinged to the pile clamp.

[0010] Preferably, the pile clamp comprises a box body having a vertical cavity therein, a plurality of clamping members installed in the vertical cavity and arranged in sequence along the circumference of the vertical cavity, and the clamping cavity formed by the plurality of clamping members is polygonal.

[0011] Compared with the prior art, the beneficial effects of the deviation correction and clamping pile mechanism provided by the utility model are:

[0012] The pile clamp is movably mounted on the frame, and the deflection drive is mounted on the frame to drive the pile clamp to deflect a predetermined angle around its own vertical center axis. When the pile clamp holds the precast pile for pile sinking construction, if the precast pile is found to have a deviation in the horizontal position, the deflection drive drives the pile clamp and the precast pile to deflect a certain angle together to correct the horizontal position of the precast pile, ensuring that the actual sinking position of the precast pile is consistent with the preset pile position, which is conducive to improving the position accuracy of the pile sinking and ensuring the construction quality.

[0013] In addition to the above, the utility model also provides a pile driving mechanism, which includes a guide frame, at least one pile driving cylinder installed on the guide frame, and the above-mentioned correcting pile clamping mechanism. The frame is movably installed on the guide frame, and the pile driving cylinder is connected to the top of the frame to drive the correcting pile clamping mechanism to move vertically along the guide frame.

[0014] Preferably, the pile driving mechanism also includes an auxiliary pile clamping mechanism arranged vertically spaced apart from the deviation correcting pile clamping mechanism, the auxiliary pile clamping mechanism includes a frame connected to the guide frame, a rotating pile clamping box movably installed in the frame, and a rotating guide assembly is arranged between the frame and the rotating pile clamping box.

[0015] In addition to the above, the utility model also provides a pile driving mechanism. The pile driving machine includes a pile driving platform, the pile driving mechanism as above installed on the pile driving platform, and a guide frame installed on the pile driving platform.

[0016] Preferably, it also includes at least one transverse driving member and / or at least one longitudinal driving member installed on the pile driving platform and driving the guide frame to translate along the pile driving platform; and / or, the guide frame vertically penetrates the pile driving platform, and a limit block is provided at the bottom of the guide frame, and the limit block can abut against the bottom of the pile driving platform; and / or, the pile driving platform is provided with a horizontal guide rail, and the guide frame includes more than two guide columns which are circumferentially spaced and can guide the lifting and lowering of the frame, and a connecting beam connecting the two guide columns, and the connecting beam is provided with a pulley or a slider that can move along the horizontal guide rail.

[0017] Compared with the prior art, the pile driving mechanism and pile driving machine provided by the utility model have the deviation correcting and clamping pile mechanism as described above, which have corresponding effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the deviation-correcting pile clamping mechanism of the first embodiment of the utility model;

[0019] Figure 2 It is a front view of the deviation-correcting pile clamping mechanism of the first embodiment of the utility model;

[0020] Figure 3 for Figure 2 Sectional view along AA direction;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the frame of the first embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the pile clamp according to the first embodiment of the utility model;

[0023] Figure 6 for Figure 5 A schematic diagram of a three-dimensional structure from another angle;

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the pile pressing mechanism of the second embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the three-dimensional structure of the guide frame of the second embodiment of the utility model;

[0026] Fig. 9 This is a three-dimensional structural schematic diagram of the auxiliary pile clamping mechanism of the second embodiment of the utility model;

[0027] Fig.10 This is a schematic diagram of the three-dimensional structure of the rotating pile clamp box according to the second embodiment of the utility model;

[0028] Fig.11 This is a schematic diagram of the three-dimensional structure of the frame of the second embodiment of the present utility model;

[0029] Fig.12It is a three-dimensional structural schematic diagram of the pile driver according to the third embodiment of the utility model.

[0030] Fig.13 for Fig.12 Schematic diagram of the enlarged structure of part B in the middle.

[0031] In the figure: 100, deviation correction pile clamping mechanism; 200, auxiliary pile clamping mechanism; 1, frame; 1a, upper bracket; 1b, connecting column; 1c, lower bracket; 11, installation cavity; 12, first arc guide block; 121, inner arc surface; 13, second connecting seat; 14, guide wheel; 15, guide; 151, base; 152, telescopic rod; 153, guide plate; 153a, vertical section; 153b, inclined section; 2, pile clamp; 21, box; 211, first Two arc-shaped guide blocks; 211a outer arc surface; 212, limit member; 213, vertical cavity; 214, first connecting seat; 22, clamping member; 23, pile clamping cylinder; 3, deflection drive member; 4, guide frame; 41, guide column; 42, connecting beam; 43, supporting beam; 44, limit block; 45, pulley; 46, mounting beam; 5, pile pressing cylinder; 6, frame; 61, mounting seat; 7, rotating pile clamp box; 8, pile pressing platform; 81, guide rail; 9, transverse driving member. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] In this article, the terms "upper, lower, inside, outside" and the like are established based on the positional relationships shown in the drawings. The corresponding positional relationships may also change depending on the drawings, and therefore cannot be understood as absolute limitations on the scope of protection; moreover, relational terms such as "first" and "second" and the like are merely used to distinguish one component from another with the same name, and do not necessarily require or imply any actual relationship or order between these components.

[0034] <Example 1>

[0035] like Figure 1-6As shown, this embodiment discloses a deviation correction pile clamping mechanism 100, which includes a frame 1, the frame 1 is provided with an installation cavity 11; at least one pile clamp 2, the pile clamp 2 is movably installed in the installation cavity 11; at least one deflection driving member 3, which is installed on the frame 1 to drive the pile clamp 2 to deflect a predetermined angle around its own vertical center axis. When the pile clamp 2 clamps the precast pile for pile sinking construction, when it is found that the position of the precast pile in the horizontal direction deviates, the deflection driving member 3 drives the pile clamp 2 and the precast pile to deflect a certain angle together, correcting the position of the precast pile in the horizontal direction, ensuring that the actual sinking position of the precast pile coincides with the preset pile position, which is conducive to improving the position accuracy of the pile sinking, so that the lateral splicing surfaces of adjacent precast piles fit together, achieving lateral splicing, improving the water-stopping and anti-seepage effects of the pile wall, and ensuring the construction quality.

[0036] Specifically, the number of pile clamps 2 is not limited to one, and there may be more than two, which are movably installed on the frame 1 at vertical intervals. Multiple pile clamps 2 may be connected by a connecting piece, and the deflection driving piece 3 is only connected to one of the pile clamps 2, thereby driving the other pile clamps 2 to deflect synchronously; or, each pile clamp 2 is respectively connected to a deflection driving piece 3; or, when there are more than two pile clamps, at least one first pile clamp is connected to the deflection driving piece, and at least one second pile clamp is independently provided, which is not connected to the first pile clamp and the deflection driving piece, and deflects following the prefabricated pile and the first pile clamp. The number of pile clamps is selected according to actual needs, and is not limited in this embodiment.

[0037] like Figure 1 , 4 As shown, the number of deflection drive members 3 is not limited to one, and there may be more than two. The deflection drive members 3 may be distributed around the pile clamp 2, and the specific number is selected according to actual needs. The deflection drive member 3 is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. The deflection drive member 3 can perform reciprocating linear motion. One end of the deflection drive member 3 is hinged to the frame 1, and the other end of the deflection drive member 3 is hinged to the pile clamp 2. Preferably, the deflection drive member 3 is connected to the frame 1 and the pile clamp 2 through a ball joint. Preferably, the deflection drive member 3 is a hydraulic cylinder, and the deflection angle of the pile clamp 2 is controlled by adjusting the extension length or retraction length of the telescopic rod of the hydraulic cylinder.

[0038] In addition to the above-mentioned structure, the deflection driving member 3 can also be a rotary power source, a transmission member is installed on the pile clamp 2, and the rotary power source and the transmission member are connected by a transmission structure, so that the rotary power source drives the transmission member to rotate a predetermined angle, thereby realizing the pile clamp 2 to deflect a predetermined angle around its own vertical center axis. The rotary power source can be a hydraulic motor or an electric motor, the transmission member can be a rotating gear, a transmission shaft, etc., and the transmission structure can be a single gear, a combination of multiple meshing gear sets, a gear and a chain or belt drive structure, a worm gear structure, etc., at least one or a combination of several, and the specific structure of the transmission structure is not limited to the above-mentioned examples, as long as it can achieve the rotary power source driving the pile clamp 2 to deflect a certain angle. The structure of the deflection driving member 3 is not limited to the above-mentioned examples, and other structures that can achieve the deflection of the pile clamp 2 by a certain angle are all acceptable.

[0039] like Figure 2-5 As shown, a guide assembly is provided between the frame 1 and the pile clamp 2 to guide the pile clamp 2 to deflect around its own vertical center axis. The setting of the guide assembly enables the pile clamp 2 to deflect along a preset trajectory, ensuring that the position of the prefabricated pile is corrected to be completely consistent with the preset pile position to avoid deviation. In this embodiment, the guide assembly includes a first arc-shaped guide block 12 provided on the frame 1, and a second arc-shaped guide block 211 provided on the pile clamp 2 and matched with the arc surface of the first arc-shaped guide block 12. When the deflection drive member 3 drives the pile clamp 2 to deflect, the second arc-shaped guide block 211 deflects along the arc surface of the first arc-shaped guide block 12. In order to prevent the pile clamp 2 from escaping from the frame 1, the second arc-shaped guide block 211 is closer to the vertical center axis of the pile clamp 2 than the first arc-shaped guide block 12. The first arc-shaped guide block 12 has an inner arc surface 121, and the second arc-shaped guide block 211 has an outer arc surface 211a that fits the inner arc surface 121. The center of the inner arc surface 121 and the center of the outer arc surface 211a are located on the vertical central axis of the pile clamp 2. The first arc-shaped guide block 12 and the frame 1 can be integrally formed, or the first arc-shaped guide block 12 and the frame 1 can be separately formed and then fixedly connected by welding, screwing, clamping, bonding, magnetic connection, etc. Similarly, the second arc-shaped guide block 211 and the pile clamp 2 can be integrally formed, or fixedly connected by welding, screwing, clamping, bonding, magnetic connection, etc., without limitation.

[0040] In other embodiments, the first arc-shaped guide block 12 may have an outer arc surface, and the second arc-shaped guide block 211 may have an inner arc surface that fits the outer arc surface. In addition, the guide assembly includes an inner arc surface and an outer arc surface that fit together, and the center of the inner arc surface and the center of the outer arc surface are located on the vertical center axis of the pile clamp 2. The guide assembly is not limited to the structural form of the first arc-shaped guide block 12 and the second arc-shaped guide block 211 that match the arc surfaces. In addition to the above examples, the guide assembly may also be other structures, such as the guide assembly includes an arc surface and a roller. Specifically, the frame 1 has an inner arc surface, and the pile clamp 2 is equipped with a roller that can roll along the inner arc surface. When the deflection drive 3 drives the pile clamp 2 to deflect, the roller of the pile clamp 2 rolls along the inner arc surface. Of course, the pile clamp 2 may also have an outer arc surface, and the frame 1 is equipped with a roller. When the deflection drive 3 drives the pile clamp 2 to deflect, the outer arc surface and the roller roll together.

[0041] like Figure 4-6 As shown, in this embodiment, in order to improve the guiding effect, there are multiple guiding components and they are arranged in a ring around the vertical center axis of the pile clamp 2. Preferably, guiding components are respectively arranged between the top of the pile clamp 2 and the frame 1, and between the bottom of the pile clamp 2 and the frame 1. The frame 1 includes an upper bracket 1a, a lower bracket 1c, and a plurality of connecting columns 1b connecting the upper bracket 1a and the lower bracket 1c. The connecting columns 1b are detachably connected to the upper bracket 1a and the lower bracket 1c. Figure 1-2 As shown, the pile clamp 2 is located between the upper bracket 1a and the lower bracket 1c and in the space surrounded by multiple connecting columns 1b. Multiple first arc-shaped guide blocks 12 are provided on the upper bracket 1a and the lower bracket 1c and are arranged around the pile clamp 2. Correspondingly, the top and top of the pile clamp 2 are also provided with a corresponding number of second arc-shaped guide blocks 211.

[0042] like Figure 2 , 4 -6, further, in order to prevent the pile clamp 2 from shaking vertically during the deflection process and affecting the accuracy of the precast pile position adjustment, the pile clamp 2 is also provided with a limiter 212 for limiting the vertical movement of the pile clamp 2, and the limiter 212 and the first arc-shaped guide block 12 have at least a partial overlap in the vertical projection and the two are against each other. The limiter 212 is against the bottom or top of the first arc-shaped guide block 12, and the limiter 212 can be a stopper, a roller, a ball, etc. When the limiter 212 is a stopper, the surface where the limiter 212 contacts the first arc-shaped guide block 12 can be a plane or an arc surface, and when the limiter 212 is a roller or a ball, the limiter 212 and the first arc-shaped guide block 12 are in rolling contact, so that the pile clamp 2 deflects more smoothly relative to the frame 1. In other embodiments, the limiting member 212 may be disposed in a staggered manner with respect to the first arc-shaped guide block 12 , that is, the limiting member 212 does not abut against the first arc-shaped guide block 12 but abuts against other parts of the frame 1 .

[0043] Furthermore, the surface where the first arc-shaped guide block 12 contacts the second arc-shaped guide block 211 is provided with a wear-resistant pad. The wear-resistant pad can be provided on the first arc-shaped guide block 12 and / or the second arc-shaped guide block 211 to prevent the surfaces of the first arc-shaped guide block 12 and the second arc-shaped guide block 211 from excessive wear due to long-term use. Similarly, the surface where the limit member 212 contacts the frame 1 is also provided with a wear-resistant pad.

[0044] like Figure 1 , 2 4, further, the upper bracket 1a is provided with a plurality of guides 15 distributed along the circumferential direction, the guides 15 include a base 151 provided on the upper bracket 1a, a telescopic rod 152 installed on the base 151, and a guide plate 153 connected to the end of the telescopic rod 152, the guide plate 153 includes a vertical section 153a and an inclined section 153b connected in one piece, the included angle between the vertical section 153a and the inclined section 153b is an obtuse angle, and the plurality of guide plates 153 form a trumpet-shaped opening to guide the precast pile when it passes through the frame 1 and is inserted into the pile clamp 2, so that the precast pile can pass through the pile clamp 2 more easily. The size of the opening formed by the plurality of guide plates 153 is adjusted by controlling the extension length of the telescopic rod 152, so as to adapt to the cross-sectional size of the precast pile.

[0045] like Figure 5-6 As shown, the pile clamp 2 includes a box body 21 with a vertical cavity 213 inside, and a plurality of clamping members 22 installed in the vertical cavity 213 and arranged in sequence along the circumference of the vertical cavity 213. The clamping cavity formed by the plurality of clamping members 22 is polygonal, so as to be suitable for precast piles with polygonal cross-sectional shapes, such as triangles, quadrilaterals, pentagons, octagons, crosses, I-shaped, etc., so that the pile clamp 2 clamps the precast pile body at multiple positions along the circumference, and the clamping force on the precast pile body along the circumference is evenly distributed, so as to achieve the purpose of stably clamping the precast pile. The box body 21 is provided with a first connecting seat 214 connected to the output end of the deflection driving member 3. The box body 21 is also equipped with a pile clamping cylinder 23, the output end of which is connected to the clamping member 22, and the clamping member 21 is controlled by the pile clamping cylinder 23 to clamp or release the precast pile.

[0046] <Example 2>

[0047] The same parts in this embodiment as those in the first embodiment are given the same figure marks, and the same text descriptions are omitted.

[0048] like Figure 7-11As shown, this embodiment discloses a pile driving mechanism, which includes a guide frame 4, at least one pile driving cylinder 5 installed on the guide frame 4, and a deviation correction pile clamping mechanism 100 as in embodiment 1, a frame 1 is movably installed on the guide frame 4, the pile driving cylinder 5 is connected to the top of the frame 1 to drive the deviation correction pile clamping mechanism 100 to move vertically along the guide frame 4, and a second connecting seat 13 connected to the output end of the pile driving cylinder 5 is provided on the top of the frame 1.

[0049] like Figure 7-8 As shown, the guide frame 4 includes two guide posts 41 arranged at intervals in the circumferential direction and capable of guiding the frame 1 to rise and fall, and a connecting beam 42 connecting the two guide posts 41. The connecting beam 42 is provided to improve the overall structural strength of the guide frame 4. In this embodiment, a mounting beam 46 for mounting the pile driving cylinder 5 is provided on the top of the guide post 41. There are four guide posts 41, and two adjacent guide posts 41 are connected by the connecting beam 42. Figure 4 As shown, the upper bracket 1a and the lower bracket 1c are rotatably mounted with guide wheels 14, which can form a rolling fit with the guide column 41 and can stably support the vertical movement of the deviation-correcting pile clamping mechanism 100 to prevent the deviation-correcting pile clamping mechanism 100 from being tilted during vertical movement.

[0050] like Figure 7 , 9 -11, the pile driving mechanism also includes an auxiliary pile clamping mechanism 200 vertically spaced apart from the deviation correcting pile clamping mechanism 100, the auxiliary pile clamping mechanism 200 includes a frame 6 connected to the guide frame 4, a rotating pile clamping box 7 movably installed in the frame 6, a support beam 43 for supporting the auxiliary pile clamping mechanism 200 is provided at the bottom of the guide column 41, the frame 6 is fixedly connected to the guide column 41, specifically, the frame 6 is connected to the guide column 41 by a mounting seat 611 and bolts, and may also be connected by other structures.

[0051] A rotating guide assembly is provided between the frame 6 and the rotating pile clamp box 7. The rotating guide assembly is provided to enable the rotating pile clamp box 7 to deflect at the same angle along a predetermined trajectory following the pile clamp 2. The rotating pile clamp box 7 is used to clamp the precast pile body, and it cooperates with the pile clamp 2 to clamp the precast pile at different heights, which is conducive to keeping the precast pile in a vertical state and being pressed into the soil layer. At the beginning of construction, the pile clamp 2 and the rotating pile clamp box 7 clamp the precast pile body at different heights respectively. When it is found that the position of the precast pile deviates from the preset pile position in the horizontal direction during the construction process, the deflection driving member 3 drives the pile clamp 2 and the precast pile to deflect by a certain angle. Since the rotating pile clamp box 7 clamps the precast pile, the rotating pile clamp box 7 also deflects by the same angle with the pile clamp 2. When the position of the precast pile matches the preset pile position, the rotating pile clamp box 7 releases the precast pile, and the pile pressing cylinder 5 drives the deviation correction pile clamping mechanism 100 to move downward along the guide column 41 to press the precast pile into the soil layer. During the pile pressing process, if it is found that the position of the precast pile deviates from the preset pile position, the pile pressing operation is stopped, and the deflection driving member 3 drives the pile clamp 2 and the precast pile to deflect by a certain angle to adjust the position of the precast pile in time.

[0052] like Figure 9-11 As shown, in this embodiment, the structure of the rotating pile clamp box 7 is the same as that of the pile clamp 2, and also includes a box body 21, a clamping member 22, and a pile clamping cylinder 24. The structure of the frame body 6 is also substantially the same as that of the frame 1, and the only difference is that the frame body 6 is not provided with a guide wheel and a second connecting seat, which will not be described in detail in this embodiment. In addition, the structure of the rotating guide assembly is the same as that of the guide assembly, and the effect is similar, and only the setting position is different. The rotating guide assembly includes a first arc guide block 12 provided on the frame body 6, and a second arc guide block 211 provided on the rotating pile clamp box 7 and matched with the arc surface of the first arc guide block 12. The second arc guide block 211 is closer to the vertical center axis of the rotating pile clamp box 7 than the first arc guide block 12, so as to prevent the rotating pile clamp box 7 from falling out of the frame body 6. The rotating guide assembly can also be a structure other than the first arc guide block 12 and the second arc guide block 211. For details, refer to the description of the structure of the guide assembly in the first embodiment, which will not be described in detail here. Preferably, the rotating pile clamp box 7 also has a limiter 212 for limiting the vertical movement of the rotating pile clamp box 7, that is, the box body 21 of the rotating pile clamp box 7 is also provided with a limiter 212. The specific structure of the limiter 212 can refer to the corresponding description of the first embodiment, and will not be repeated here. The limiter 212 and the first arc-shaped guide block 12 have at least a partial overlap in the vertical projection and the two are against each other. The limiter 212 is against the bottom or top of the first arc-shaped guide block 12 to prevent the rotating pile clamp box 7 from shaking vertically during the deflection process and affecting the accuracy of adjusting the position of the prefabricated pile. Of course, the limiter 212 can also be against the rest of the box body 21 of the rotating pile clamp box 7 to limit the vertical movement of the rotating pile clamp box 7.

[0053] <Example 3>

[0054] The same parts as those in the first and second embodiments are given the same reference numerals, and the same text descriptions are omitted.

[0055] like Figure 12-13 As shown, this embodiment discloses a pile driving machine, which includes a pile driving platform 8 , a pile driving mechanism as in the second embodiment installed on the pile driving platform 8 , and a guide frame 4 installed on the pile driving platform 8 .

[0056] The pile driver also includes at least one transverse driving member 9 and / or at least one longitudinal driving member (not shown) installed on the pile driving platform 8 and driving the guide frame 4 to translate along the pile driving platform 8. The transverse driving member 9 drives the guide frame 4 to translate a certain distance in the horizontal direction, and the longitudinal driving member drives the guide frame 4 to translate a certain distance in the horizontal direction, thereby adjusting the transverse position and / or longitudinal position of the precast pile in the horizontal direction.

[0057] like Figure 8 , 12 As shown in Figure 13, in order to guide the translation of the guide frame 4, the pile driving platform 8 is provided with a horizontal guide rail 81, the setting direction of the horizontal guide rail 81 is the same as the translation direction of the guide frame 4, and the connecting beam 42 is provided with a pulley 45 or a slider that can move along the horizontal guide rail 81. Preferably, two horizontal guide rails 81 are provided and arranged side by side at intervals, and correspondingly, pulleys 45 are provided at both ends of the two connecting beams 42 opposite to the two horizontal guide rails 81.

[0058] like Figure 8 , 12 As shown in FIG. 13 , the guide frame 4 vertically penetrates the pile driving platform 8, and a limit block 44 is provided at the bottom of the guide frame 4. The limit block 44 is provided at the bottom of the guide column 41, and the limit block 44 can abut against the bottom of the pile driving platform 8 to limit the vertical upward movement of the guide frame 4. In order to prevent the limit block 44 from frequently touching the bottom of the pile driving platform 8 due to the influence of the construction machinery during the construction process, such as mechanical vibration and movement, and causing serious wear of the part where the pile driver platform and the guide frame 4 are in contact, a wear-resistant pad is provided on the top of the limit block 44, and a wear-resistant pad is provided at the part where the pile driving platform 8 and the limit block 44 are in contact.

[0059] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. The deviation-correcting pile clamping mechanism is characterized by: include: A frame (1), wherein the frame (1) is provided with a mounting cavity (11); at least one pile clamp (2), the pile clamp (2) being movably mounted in the mounting cavity (11); At least one deflection driving member (3) mounted on the frame (1) for driving the pile clamp (2) to deflect a predetermined angle around its own vertical center axis; A guide assembly is provided between the frame (1) and the pile clamp (2) for guiding the pile clamp (2) to deflect around its own vertical center axis.

2. The deviation-correcting pile clamping mechanism according to claim 1 is characterized in that: The guide assembly comprises a first arc-shaped guide block (12) arranged on the frame (1), and a second arc-shaped guide block (13) arranged on the pile clamp (2) and matched with the arc surface of the first arc-shaped guide block (12).

3. The deviation-correcting pile clamping mechanism according to claim 2 is characterized in that: The second arc-shaped guide block (13) is closer to the vertical center axis of the pile clamp (2) than the first arc-shaped guide block (12); And / or, the pile clamp (2) is further provided with a limiter (212) for limiting the vertical movement of the pile clamp (2), and the limiter (212) and the first arc-shaped guide block (12) have at least a partial overlap in vertical projection and the two are offset against each other; and / or, the guide assemblies are multiple and arranged in a ring shape around the vertical center axis of the pile clamp (2); And / or, the top and bottom of the pile clamp (2) are respectively provided with guide components.

4. The deviation-correcting pile clamping mechanism according to claim 1, characterized in that: The deflection drive member (3) is a hydraulic cylinder, a gas cylinder or an electric cylinder. One end of the deflection drive member (3) is hinged to the frame (1), and the other end of the deflection drive member (3) is hinged to the pile clamp (2).

5. The deviation-correcting pile clamping mechanism according to claim 1, characterized in that: The pile clamp (2) comprises a box body (21) having a vertical cavity (211) therein, and a plurality of clamping members (22) installed in the vertical cavity (211) and arranged in sequence along the circumference of the vertical cavity (211); the clamping cavity formed by the plurality of clamping members (22) is polygonal.

6. The pile pressing mechanism is characterized in that: include: A guide frame (4), at least one pile-driving cylinder (5) mounted on the guide frame (4), and a deviation-correcting pile-clamping mechanism (100) as described in any one of claims 1 to 5, wherein the frame (1) is movably mounted on the guide frame (4), and the pile-driving cylinder (5) is connected to the top of the frame (1) to drive the deviation-correcting pile-clamping mechanism (100) to move vertically along the guide frame (4).

7. The pile pressing mechanism according to claim 6, characterized in that: The invention also comprises an auxiliary pile clamping mechanism (200) which is arranged vertically spaced apart from the deviation-correcting pile clamping mechanism (100); the auxiliary pile clamping mechanism (200) comprises a frame (6) connected to the guide frame (4), a rotating pile clamping box (7) movably installed in the frame (6), and a rotating guide assembly is arranged between the frame (6) and the rotating pile clamping box (7).

8. A pile driver, characterized in that: include: A pile driving platform (8), a pile driving mechanism as claimed in claim 6 or 7 installed on the pile driving platform (8), and the guide frame (4) is installed on the pile driving platform (8).

9. The pile driver according to claim 8, characterized in that: It also includes at least one transverse driving member (9) and / or at least one longitudinal driving member installed on the pile driving platform (8) and driving the guide frame (4) to translate along the pile driving platform (8); And / or, the guide frame (4) vertically penetrates the pile driving platform (8), and a limit block (42) is provided at the bottom of the guide frame (4), and the limit block (42) can abut against the bottom of the pile driving platform (8); And / or, the pile driving platform (8) is provided with a horizontal guide rail (81), the guide frame (4) comprises two guide posts (45) which are arranged circumferentially at intervals and can guide the frame (1) to rise and fall, and a connecting beam (44) connecting the two guide posts (45), and the connecting beam (44) is provided with a pulley (43) or a slider which can move along the horizontal guide rail (81).

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