Pile pressing mechanism of hydraulic static pile driver

Abstract

The utility model discloses a pile-pressing mechanism of a hydraulic static pile-pressing machine, the pile-pressing mechanism is installed on a machine body, the pile-pressing mechanism comprises supporting parts, connecting pieces, a pile clamping mechanism, a pile-pressing piece, a main shaft, a swing oil cylinder and a swing angle detection assembly, a structure formed by connecting the two supporting parts and the connecting pieces is provided with an enclosed space, the pile pressing piece is used for containing the pile clamping mechanism, the pile clamping mechanism is used for clamping a pile foundation, the pile pressing piece is connected with and drives the pile clamping mechanism to do linear reciprocating motion, the pile clamping mechanism slides on the supporting part, one end of the main shaft is fixedly connected with the supporting part, and the other end of the main shaft is rotatably installed on the machine body; the swing angle detection assembly is used for detecting the rotation angle of the supporting part. The machine can press inclined piles, middle straight piles and the like, is multipurpose, can detect and control the rotating angle of the inclined piles to enable the inclined piles to be over-stabilized at the angle when the inclined piles are pressed, is high in construction efficiency and quality, and is stable and effective when the pile pressing mechanism presses the piles.

Description

Technical Field

[0001] The utility model belongs to the technical field of pile drivers, in particular to a pile driving mechanism of a hydraulic static pile driver. Background Art

[0002] Static pressure construction of precast piles is a new type of environmentally friendly pile foundation construction method that uses static pressure to steadily press precast piles into the foundation. At present, static pressure pile construction has been widely used in domestic pile foundation construction. In addition to static pressure piles for precast piles, static pressure pile construction is also widely used for H-shaped steel piles, steel pipe piles and other special-shaped steel piles. Hydraulic static construction has the advantages of clean site, no noise, no vibration, no sewage, no smoke and dust, fast pile pressing speed and high efficiency. It is suitable for operation in urban areas with special requirements for the environment. Hydraulic static pile driver is currently the most widely used equipment for static pressure construction.

[0003] At present, with the development of urban high-rise buildings and the limitation of urban land resources, the demand for underground space utilization has increased. The current deep foundation pit is getting deeper and deeper, and the construction period is short. Therefore, the difficulty of deep foundation construction is getting greater and greater, and the requirements for pile foundation and deep foundation pit support are getting higher and higher. The traditional support method can no longer meet the needs of deep foundation pit support. The current deep foundation pit support process is to use static pile pressure technology to press prefabricated rectangular piles obliquely into the foundation. This construction method has high efficiency and reliable pile quality, and has been widely used. The pile foundation that is inclined relative to the horizontal plane when entering the soil and after being pressed into the foundation is an inclined pile, and the pile foundation that is perpendicular to the horizontal plane when entering the soil and after being pressed into the foundation is a medium straight pile.

[0004] There are some disadvantages in the existing technology of inclined pile driving for inclined pile driving. For example, the current inclined pile driving machine is mainly used for inclined pile driving and has a single function. Many existing inclined pile driving machines are not strong enough and are subjected to large stress during pile driving. In addition, during inclined pile driving, in order to obliquely drive the inclined pile into the foundation, the force exerted by the pile driving machine on the inclined pile forms an angle of non-90 degrees with the horizontal plane, and the pile driving machine body will be subjected to a reaction force, which can be decomposed into a component force parallel to the horizontal plane. If the component force reaches a certain level, it can overcome the friction between the pile driving machine and the ground and cause the pile driving machine to move. In severe cases, the inclined pile will be broken and the pile driving machine structure will be damaged. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the purpose of the utility model is to provide a pile driving mechanism of a hydraulic static pile driver, which can be rotated and fixed at any position within a set range, so that inclined piles and medium straight piles can be pressed. One machine has multiple uses and a wide range of applications. When pressing inclined piles, the rotation angle of the inclined pile can be detected and controlled to make it stable at this angle, and the construction efficiency and quality are high. The pile driving mechanism is stable and effective when pressing piles, and has high strength itself. A sliding friction pair is formed between the pile clamping mechanism and the supporting part. The sliding friction pair is guided to increase the contact area, reduce the extrusion stress of the pile clamping box on the column, improve the stability of the pile driving, and extend the service life of the product.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A pile driving mechanism of a hydraulic static pile driver, the pile driver comprising a body, the pile driving mechanism being mounted on the body, the pile driving mechanism comprising a support part, a connecting piece, a pile clamping mechanism, a pile driving piece, a main shaft, a swinging oil cylinder and a swinging angle detection component, wherein two support parts are provided, the two support parts are arranged in parallel and spaced apart, the two support parts are connected by a plurality of connecting pieces, and the structure formed by the connection between the two support parts and the connecting pieces has an enclosed space, the enclosed space is used to accommodate the pile clamping mechanism and for the pile foundation to pass through, the pile clamping mechanism is used to clamp the pile foundation, the pile driving piece is connected to and drives the pile clamping mechanism to move back and forth in a straight line, the pile clamping mechanism slides on the support part, one end of the main shaft is fixedly connected to the support part, and the other end is rotatably mounted on the body, one end of the swinging oil cylinder is hinged to the body, and the other end is connected to the support part, and the swinging angle detection component is used to detect the rotation angle of the support part.

[0008] As a further improvement of the above technical solution:

[0009] The support part includes a support seat, a column and a cross beam. There are two columns, which are arranged in parallel and spaced apart. The lower end of the column is fixedly connected to the upper end of the support seat. The upper ends of the two columns are connected by a cross beam, and the pile driving member is installed on the cross beam.

[0010] The support part also includes a limit hinge seat, which is connected to the side of the support seat or the side of the column, and is used to fix the support part on the fuselage.

[0011] The support part also includes a swing cylinder connector and a connecting beam. The connecting beam is located between the cross beam and the support seat. The two ends of the connecting beam are respectively connected to two columns. The swing cylinder connector is installed on the connecting beam. The swing cylinder connector is used to connect the swing cylinder.

[0012] The pile clamping mechanism comprises a pile clamping box and at least one group of pile clamping assemblies installed on the pile clamping box, the pile clamping assembly comprises a pile clamping oil cylinder and a pile clamping jaw, the pile clamping box is an overall box structure, the pile clamping box is provided with a through hole for the pile foundation to pass through, which is the pile clamping hole, each group of the pile clamping assemblies is provided with a plurality of pile clamping oil cylinders and pile clamping jaws, the pile clamping jaws are located in the pile clamping hole and are used to clamp the pile foundation, the plurality of pile clamping jaws are arranged at intervals along the circumference of the pile clamping hole, the plurality of pile clamping oil cylinders are respectively connected to and drive the plurality of pile clamping jaws to move back and forth in a straight line, and the moving direction is perpendicular to the length direction of the pile clamping hole.

[0013] When two or more groups of pile clamping assemblies are provided, each group of the pile clamping assemblies is arranged along the length direction of the pile clamping hole.

[0014] The pile clamping mechanism also includes a pile feeder, which is used to guide the pile foundation when feeding piles. There are multiple pile feeders, which are arranged at intervals around the entrance of the pile clamping hole. The pile feeders can move toward or away from the center line of the pile clamping hole.

[0015] The pile clamping mechanism also includes a second friction reducing strip, which is mounted on the outer surface of the pile clamping box body. The second friction reducing strip is in direct contact with the column and slides along the column.

[0016] The pile clamping mechanism also includes a pile pressing seat, which is installed on the top surface of the pile clamping box and is used to connect with the pile pressing member. There are two pile pressing seats and two pile pressing members respectively, and the two pile pressing members are respectively connected to the two pile pressing seats.

[0017] The connecting piece is a rod-shaped structure, and two ends of the connecting piece are respectively connected to the side surfaces of the two supporting parts.

[0018] The beneficial effects of the utility model are:

[0019] (1) The pile-driving mechanism can be rotated and fixed at any position within a set range, so that inclined piles and straight piles can be driven. One machine has multiple uses and a wide range of applications. When driving inclined piles, the rotation angle of the inclined pile can be detected and controlled to make it stable at the angle, thereby achieving high construction efficiency and quality.

[0020] (2) The pile-pressing mechanism is stable and effective when pressing piles: the crossbeams, columns and other arrangements of the supporting part of the pile-pressing mechanism make the supporting part itself structurally stable and of reliable strength; a sliding friction pair is formed between the pile clamping mechanism and the supporting part, which is guided by the sliding friction pair to increase the contact area, reduce the extrusion stress of the pile clamping box on the column, improve the stability of pile pressing, and extend the service life of the product; the pile clamping jaws of the pile clamping mechanism and the pile foundation have a large contact area with the pile foundation, which improves the clamping stability of the pile foundation and reduces the probability of causing damage to the pile foundation; the pile clamping cylinder can drive the pile clamping jaws to move, so that the pile clamping jaws can clamp pile foundations of different diameters and cross-sections; the plug-in plate mechanism can balance the horizontal force on the fuselage during inclined pile pressing, preventing the fuselage from moving and breaking the pile foundation; the mounting hinge seat on the fuselage connected to the plug-in plate mechanism can also be connected to the side pile mechanism, thereby increasing the scope of application and flexibility of the pile-pressing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the pile driver according to an embodiment of the utility model.

[0022] Figure 2 It is a schematic diagram of the chassis structure of an embodiment of the utility model.

[0023] Figure 3 It is a schematic diagram of the structure of a transverse walking mechanism of an embodiment of the utility model.

[0024] Figure 4 It is a structural schematic diagram from another perspective of the transverse walking mechanism of an embodiment of the utility model.

[0025] Figure 5 It is a schematic diagram of the main structure of a leg hinge seat of an embodiment of the utility model.

[0026] Figure 6 The utility model is a schematic diagram of a top view of the structure of a leg hinge seat according to an embodiment of the utility model.

[0027] Figure 7 It is a schematic diagram of the structure of a pile pressing mechanism of an embodiment of the utility model.

[0028] Figure 8 It is a schematic diagram of the structure of a support portion without a crossbeam according to an embodiment of the utility model.

[0029] Fig. 9 It is a schematic diagram of the state when the pile pressing mechanism of one embodiment of the utility model is located in two positions.

[0030] Fig.10 It is a schematic diagram of the pile clamping mechanism structure of an embodiment of the utility model.

[0031] Fig.11 It is a structural schematic diagram of a pile feeder according to an embodiment of the utility model.

[0032] Fig.12 It is a schematic diagram of the structure of a plugging mechanism of an embodiment of the utility model.

[0033] Fig.13 It is a schematic diagram of the structure of a crane according to an embodiment of the utility model.

[0034] Fig.14 yes Fig.13 Schematic diagram of C enlargement.

[0035] Figure numerals: 100, fuselage, 110, middle part, 111, operating room, 120, side pile fuselage, 121, shaft sleeve, 130, boom seat, 140, reset member, 160, leg, 151, side plate, 152, support plate, 153, reinforcement beam, 154, limit shaft, 155, hoop, 156, reinforcement plate, 200, transverse travel mechanism, 210, transverse shoe, 220, transverse travel trolley, 230, transverse shoe Traveling cylinder, 240, transverse guide rail, 300, longitudinal walking mechanism, 310, longitudinal lower box, 311, first friction reducing bar, 320, longitudinal upper box, 330, longitudinal walking trolley, 340, longitudinal walking cylinder, 400, transverse shoe lifting mechanism, 410, transverse shoe lifting cylinder, 500, longitudinal shoe lifting mechanism, 520, longitudinal shoe lifting cylinder, 600, pile pressing mechanism, 610, support part, 611, support seat, 612, column, 613, crossbeam, 614, swing cylinder connector, 615, limit hinge seat, 616, connecting beam, 620, connector, 630, pile clamping mechanism, 631, pile clamping box, 632, pile clamping cylinder, 633, pile clamping jaws, 634, pile feeder, 6341, base, 6342, telescopic rod, 635, pile pressing seat, 636, second friction reducing strip, 637, pile clamping hole, 640, pile pressing member, 65 0, main shaft, 660, swing cylinder, 700, plug plate mechanism, 710, plug plate box, 720, plug plate, 730, plug plate cylinder, 740, hinge ear, 800, crane, 810, boom, 820, boom telescopic mechanism, 830, winch mechanism, 840, luffing cylinder, 850, slewing platform, 860, slewing mechanism, 910, counterweight beam, 920, counterweight block, 1010, pump station, 1020, oil tank. DETAILED DESCRIPTION

[0036] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0038] A pile driving mechanism of a hydraulic static pile driver, such as Figures 1 to 13 As shown, the hydraulic static pile driver includes a body 100, a transverse walking mechanism 200, a longitudinal walking mechanism 300, a transverse shoe lifting mechanism 400, a longitudinal shoe lifting mechanism 500, a pile driving mechanism 600, a plug plate mechanism 700, a crane 800, a counterweight system, a hydraulic system and a control system.

[0039] The transverse walking mechanism 200 and the longitudinal walking mechanism 300 support and drive the fuselage 100 to move and turn, the transverse shoe lifting mechanism 400 drives the fuselage 100 and the transverse walking mechanism 200 to move relative to each other, and the longitudinal shoe lifting mechanism 500 drives the fuselage 100 and the longitudinal walking mechanism 300 to move relative to each other. In other words, the transverse shoe lifting mechanism 400 and the longitudinal shoe lifting mechanism 500 respectively drive the transverse walking mechanism 200 and the longitudinal walking mechanism 300 to lift off the ground, and also drive the fuselage 100 to rise or fall, so that the transverse walking mechanism 200 and the longitudinal walking mechanism 300 cooperate to realize the movement and turning of the fuselage 100. The fuselage 100 is used to support other parts of the pile driver except the transverse walking mechanism 200 and the longitudinal walking mechanism 300. The pile pressing mechanism 600 is used to press the oblique piles or the middle straight piles into the foundation. The plug plate mechanism 700 is used to balance the horizontal force on the fuselage 100 when the oblique piles are pressed, so as to prevent the fuselage 100 from moving. The crane 800 is used to lift its own components and pile foundations, etc. The hydraulic system provides hydraulic power for the pile driver.

[0040] like Figure 1 and 2As shown, the fuselage 100 is a box structure as a whole, which is light in weight and has high strength and rigidity. The fuselage 100 includes a middle part 110, a side pile fuselage 120 and a boom seat 130. The side pile fuselage 120, the middle part 110 and the boom seat 130 are sequentially connected along the length direction of the fuselage 100. An operating room 111 is installed on the middle part 110, a pile pressing mechanism 600 is mainly installed on the side pile fuselage 120, and a crane 800 is mainly installed on the boom seat 130. It can be seen that the fuselage 100 is a three-section structure, and the three sections are similar in size. When manufacturing, the three sections can be manufactured separately and then assembled, which is convenient for the overall manufacturing and installation of the fuselage 100.

[0041] Two transverse travel mechanisms 200 are provided, preferably, the two transverse travel mechanisms 200 are arranged in parallel and spaced apart. The two ends of the fuselage 100 in the length direction are respectively mounted on the two transverse travel mechanisms 200. Specifically, each end of the fuselage 100 in the length direction is mounted on one transverse travel mechanism 200 through two transverse lifting mechanisms 400, that is, the two transverse travel mechanisms 200 are respectively connected to the side pile fuselage 120 and the boom seat 130. Figures 2 to 4 As shown, the transverse travel mechanism 200 includes a transverse shoe 210, a transverse travel trolley 220, a transverse travel cylinder 230 and a transverse guide rail 240. The transverse shoe 210 is supported on the ground. The transverse shoe 210 is a long strip structure. One end of the transverse travel cylinder 230 is hinged on the transverse shoe 210, and the other end is connected to the transverse travel trolley 220. The transverse travel cylinder 230 connects and drives the transverse travel trolley 220 to move back and forth in a straight line in a direction parallel to the length of the transverse shoe 210. The transverse guide rail 240 guides the movement of the transverse travel trolley 220 and prevents the transverse travel trolley 220 from separating from the transverse guide rail 240, so that the movement of the transverse travel trolley 220 is smoother. A ball head seat is provided on the transverse travel trolley 220, and the transverse shoe lifting mechanism 400 is connected to the ball head seat. Preferably, each transverse travel mechanism 200 includes two transverse travel carriages 220 and two transverse travel cylinders 230. The two transverse travel cylinders 230 are respectively connected to and drive the two transverse travel carriages 220. The two transverse travel carriages 220 are located on the same transverse guide rail 240, that is, the two transverse travel carriages 220 reciprocate along the same straight line. The two transverse travel carriages 220 are located between the two transverse travel cylinders 230, and the two transverse travel cylinders 230 are symmetrically arranged at both ends of the length direction of the transverse shoe 210.

[0042] Each traverse walking trolley 220 is connected to a traverse shoe lifting mechanism 400, which includes a traverse shoe lifting oil cylinder 410 and a traverse shoe lifting ball head, one end of the traverse shoe lifting oil cylinder 410 is installed on the fuselage 100, and the other end is connected to the traverse shoe lifting ball head, and the traverse shoe lifting ball head is connected to the ball head seat on the traverse walking trolley 220. Each traverse walking trolley 220 is connected to the fuselage 100 through a traverse shoe lifting mechanism 400. Further, the traverse shoe lifting oil cylinder 410 includes a cylinder barrel and a piston rod, the cylinder barrel of the traverse shoe lifting oil cylinder 410 is installed on the fuselage 100, and one end of the piston rod of the traverse shoe lifting oil cylinder 410 is connected to the traverse shoe lifting ball head. The cross shoe lifting ball head is spherical, and the ball head seat on the cross shoe trolley 220 and the cross shoe lifting ball head form a spherical fit, so that the cross shoe lifting oil cylinder 410 can rotate relative to the cross shoe trolley 220, which is convenient for the machine body 100 connected to the cross shoe lifting oil cylinder 410 to rotate and turn relative to the cross shoe trolley 220. The above ball head connection structure can also adapt to harsh working conditions such as uneven construction sites and machine sinking. The cross shoe trolley 220 can adaptably rotate relative to the cross shoe lifting ball head to drive the cross shoe 210 to adapt to uneven road surfaces, preventing one end of the cross shoe 210 from tilting and inserting into the foundation due to uneven road surfaces.

[0043] From the above, the cross shoe lifting cylinder 410 can drive the fuselage 100 and the cross shoe 210 to move away from or close to each other, thereby lifting the fuselage 100 and the cross shoe 210. At the same time, the cross shoe trolley 220 can drive the fuselage 100 to move along the length direction of the cross shoe 210.

[0044] like Figure 2As shown, two longitudinal travel mechanisms 300 are provided, the two longitudinal travel mechanisms 300 are located between the two transverse travel mechanisms 200, and the two longitudinal travel mechanisms 300 are respectively connected to the two ends in the width direction of the fuselage 100. The longitudinal travel mechanism 300 includes a longitudinal lower box 310, a longitudinal upper box 320, a longitudinal travel trolley 330 and a longitudinal travel cylinder 340. The longitudinal lower box 310 is a plate-shaped structure as a whole. The longitudinal shoe upper box 320 is rotatably mounted on the longitudinal shoe lower box 310. Specifically, a ball head seat is provided in the middle of the bottom surface of the longitudinal shoe upper box 320, and a center axis is connected to the middle of the top surface of the longitudinal shoe lower box 310. The lower end of the center axis is connected to the middle of the top surface of the longitudinal shoe lower box 310, and a ball head is provided at the upper end. The ball head and the ball head seat on the bottom surface of the longitudinal shoe upper box 320 are spherically matched, so that the relative rotation of the longitudinal shoe lower box 310 and the longitudinal shoe upper box 320 is achieved. Furthermore, the ball head seat on the bottom surface of the longitudinal shoe upper case 320 is embedded in the longitudinal shoe upper case 320. In other words, a groove is provided on the bottom surface of the longitudinal shoe upper case 320, and the ball head seat is arranged in the groove. After the central axis ball head of the longitudinal shoe lower case 310 and the spherical surface of the ball head seat on the bottom surface of the longitudinal shoe upper case 320 are matched, the top surface of the longitudinal shoe lower case 310 and the bottom surface of the longitudinal shoe upper case 320 are in contact, so that the longitudinal shoe upper case 320 can rotate relative to the longitudinal shoe lower case 310 around the central axis. In order to reduce the friction damage when the longitudinal shoe lower case 310 and the longitudinal shoe upper case 320 rotate relative to each other, first friction reducing strips 311 are provided at both ends of the top surface of the longitudinal shoe lower case 310.

[0045] Each longitudinal walking mechanism 300 is provided with two longitudinal walking trolleys 330, and a guide groove is provided on the longitudinal shoe upper box 320. The two longitudinal walking trolleys 330 are located in the guide groove and move along the length direction of the guide groove. The guide groove can limit the longitudinal walking trolley 330 so that the longitudinal walking trolley 330 can only move along the length direction of the guide groove, preventing the longitudinal walking trolley 330 from escaping from the guide groove. Specifically, the guide groove is a groove with a trapezoidal or rectangular cross-section. Limiting protrusions are provided on both sides of the entrance of the guide groove to prevent the longitudinal walking trolley 330 from escaping from the guide groove. The length direction of the guide groove is the length direction of the longitudinal shoe upper box 320.

[0046] The longitudinal travel oil cylinder 340 is installed on the longitudinal shoe upper box 320, and the longitudinal travel oil cylinder 340 is connected to and drives the longitudinal travel trolley 330 to move back and forth in a straight line. There are two longitudinal travel oil cylinders 340, and the two longitudinal travel oil cylinders 340 are respectively connected to two longitudinal travel trolleys 330. The two longitudinal travel trolleys 330 are located between the two longitudinal travel oil cylinders 340, and the two longitudinal travel oil cylinders 340 are symmetrically arranged at both ends of the longitudinal shoe upper box 320 in the length direction.

[0047] Each longitudinal walking trolley 330 is connected to a longitudinal shoe lifting mechanism 500, and the longitudinal shoe lifting mechanism 500 includes a longitudinal shoe lifting cylinder 520. One end of the fuselage 100 in the width direction is connected to a leg 160, one end of the leg 160 is connected to the fuselage 100, and the other end is beyond the fuselage 100. Specifically, one end of the leg 160 is inserted into the leg hinge seat of the fuselage 100. One end of the longitudinal shoe lifting cylinder 520 is installed on the leg 160, and the other end is connected to the longitudinal walking trolley 330. Preferably, the cylinder barrel of the longitudinal shoe lifting cylinder 520 is installed on the leg 160, and the piston rod of the longitudinal shoe lifting cylinder 520 is connected to the longitudinal shoe lifting ball head, and the longitudinal shoe lifting ball head and the ball head seat on the longitudinal walking trolley 330 are spherically matched and connected. After connection, the length direction of the longitudinal shoe upper box 320 is consistent with the length direction of the fuselage 100, and the two are basically parallel.

[0048] Leg hinge seat Figure 5 and 6 As shown, it includes a side plate 151, a support plate 152, a reinforcing beam 153, a limiting shaft 154, a hoop 155 and a reinforcing plate 156. The side plate 151 and the support plate 152 are both plate-like structures. The side plate 151 is connected to the fuselage 100. There are two side plates 151, which are arranged in parallel and spaced apart. The plane where the side plates 151 are located is perpendicular to the length direction of the fuselage 100. There are two support plates 152, which are arranged in parallel and spaced apart. The support plates 152 and the side plates 151 are perpendicular. The two ends of one support plate 152 are respectively connected to the upper ends of the two side plates 151, and the two ends of the other support plate 152 are respectively connected to the lower ends of the two side plates 151. In this way, the two side plates 151 and the two support plates 152 are connected to form the four sides of a rectangular parallelepiped. The fuselage 100 blocks one of the remaining two sides, and the last side has no covering to form the entrance of the support leg 160. There are also two reinforcing beams 153, and the two ends of the reinforcing beams 153 are respectively connected to the two side panels 151. Two supporting plates 152 are located between the two reinforcing beams 153. The two ends of the limiting shaft 154 are respectively detachably connected to the two supporting plates 152. Preferably, the length direction of the limiting shaft 154 is perpendicular to the length direction of the fuselage 100. When the leg 160 is connected to the fuselage, one end of the leg 160 is inserted between the two supporting plates 152, and then the limiting shaft 154 passes through the supporting plate 152 and one end of the leg 160, so that the leg 160 is connected to the fuselage 100 and is limited by the limiting shaft 154. There are also two reinforcing plates 156, and the two reinforcing plates 156 are respectively connected to the two side panels 151, which play a role in strengthening the stability of the side panels 151. The hoop 155 surrounds the end of the leg hinge seat close to the entrance of the leg 160, and does not interfere with the insertion of the leg 160. The reinforcing beam 153 is also connected to one end of the side plate 151 near the inlet of the leg 160. The reinforcing beam 153 plays a role in reinforcing the overall stability and strength of the side plate 151 and the leg hinge seat. The reinforcing beam 153 and the hoop 155 are both located at one end near the inlet of the leg 160, because the inlet end is subjected to greater force.

[0049] In this embodiment, four longitudinal shoe lifting mechanisms 500 and four legs 160 are provided, the four legs 160 are respectively arranged at both ends of the width direction of the fuselage 100, and the four longitudinal shoe lifting mechanisms 500 are respectively connected to the four legs 160. In addition, the oil cylinder stroke of the longitudinal shoe lifting mechanism 500 is relatively large, which facilitates the pile driver to get out of trouble smoothly when the pile driver is seriously trapped.

[0050] Based on the above structure, the fuselage 100 can realize lateral walking, longitudinal walking and turning, wherein the longitudinal walking direction is perpendicular to the lateral walking direction.

[0051] When walking horizontally, in the first step, the transverse shoe 210 is supported on the ground, and the lower box body 310 of the longitudinal shoe and the upper box body 320 of the longitudinal shoe are lifted and leave the ground by the longitudinal shoe lifting mechanism 500; in the second step, the transverse walking cylinder 230 drives the transverse walking trolley 220. At this time, the transverse walking trolleys 220 on the two transverse walking mechanisms 200 move relative to the ground in the first direction, and the transverse shoe 210 does not move relative to the ground. The transverse walking trolley 220 drives the fuselage 100 and the longitudinal walking The mechanism 300 moves synchronously; the third step, the longitudinal shoe lifting mechanism 500 drives the longitudinal shoe lower box 310 and the longitudinal shoe upper box 320 to descend and support on the ground again; the fourth step, the transverse shoe lifting mechanism 400 drives the transverse shoe 210 to lift off the ground; the fifth step, the transverse travel cylinder 230 is started to make the transverse shoe 210 move relative to the transverse travel trolley 220. At this time, the transverse shoe 210 moves relative to the ground in the first direction, and the transverse travel trolley 220 remains in a constant position relative to the ground. In this way, the fuselage 100 can move horizontally in one step.

[0052] The longitudinal walking principle is the same as the transverse walking principle. At this time, the transverse walking mechanism 200 is only lifted or lowered, and the longitudinal walking trolley 330 of the longitudinal walking mechanism 300 moves relative to the longitudinal lower box 310 or the longitudinal upper box 320 to complete the longitudinal walking.

[0053] When turning, the lateral moving trolley 220 on one lateral moving mechanism 200 moves in a first direction relative to the ground, and the lateral moving trolley 220 on the other lateral moving mechanism 200 moves in a second direction relative to the ground, and the first direction and the second direction are opposite. At this time, the fuselage 100 will rotate and drive the longitudinal upper box 320 to rotate synchronously, and the longitudinal upper box 320 rotates around the central axis relative to the longitudinal lower box 310. This steering operation can help the pile driver to further adjust its position, so that the pile driving mechanism 600 is more accurately located directly above the entrance of the pile foundation, so that the pile foundation can be accurately pushed into the pile foundation hole during subsequent pile driving.

[0054] Furthermore, the fuselage 100 is also provided with a reset member 140, which is used to reset the longitudinal track lower box 310 and the longitudinal track upper box 320, so that the length direction of the longitudinal track lower box 310 is restored to be parallel to the length direction of the longitudinal track upper box 320. The two ends of the reset member 140 are respectively connected to the fuselage 100 and the longitudinal track lower box 310, and the reset member 140 is elastic. After the above-mentioned steering operation, the length direction of the longitudinal track upper box 320 remains parallel to the length direction of the fuselage 100, and the longitudinal track upper box 320 rotates relative to the longitudinal track lower box 310 until the two form a non-zero angle, that is, the length direction of the longitudinal track upper box 320 is not parallel to the longitudinal track lower box 310, and the reset member 140 is stretched, and the longitudinal track lower box 310 and the transverse track 210 are supported on the ground to perform the pile pressing operation. After the pile pressing operation is completed, the pile driver needs to move to other pile foundation holes for pile pressing. As can be seen from the above, during the movement, the longitudinal shoe lower box 310 and the longitudinal shoe upper box 320 need to be lifted. At this time, there is an angle between the longitudinal shoe upper box 320 and the longitudinal shoe lower box 310. The longitudinal shoe lower box 310 is not parallel to the length direction of the fuselage 100. When the longitudinal shoe lower box 310 is lifted, it may interfere with the fuselage 100. Therefore, it is necessary to first reset the longitudinal shoe lower box 310 and the longitudinal shoe upper box 320 to restore the longitudinal shoe lower box 310 to be parallel to the length direction of the fuselage 100. During reset, the transverse travel cylinder 230 releases the force on the transverse travel trolley 220. The fuselage 100 loses the force of the transverse travel cylinder 230 and is acted upon by the reset member 140. Under the force of the reset member 140, the fuselage 100 and the longitudinal shoe upper box 320 rotate as a whole relative to the longitudinal shoe lower box 310 until the longitudinal shoe lower box 310 and the fuselage 100 are parallel in length, and the elastic potential energy stored in the reset member 140 is completely released.

[0055] Pile pressing mechanism 600 Figures 7-10 As shown, the pile-pressing mechanism 600 includes a support portion 610, a connecting member 620, a pile clamping mechanism 630, a pile-pressing member 640, a main shaft 650, a swing cylinder 660 and a swing angle detection assembly. Two support portions 610 are provided, and the two support portions 610 are arranged in parallel and spaced apart. The two support portions 610 are connected by a plurality of connecting members 620. Specifically, the two ends of the connecting member 620 are respectively connected to the side surfaces of the two support portions 610, so that the structure formed by the connection of the two support portions 610 and each connecting member 620 has an enclosed space, and the enclosed space is used to accommodate the pile clamping mechanism 630 and for the pile foundation to pass through. In other words, the two support portions 610 and each connecting member 620 are equivalent to being located on four adjacent faces of a rectangular parallelepiped in sequence, and the four adjacent faces enclose a space that can accommodate the pile clamping mechanism 630, and the two support portions 610 are respectively located on two opposite faces of the rectangular parallelepiped, and each connecting member 620 is respectively located on the other two opposite faces of the rectangular parallelepiped.

[0056] In this embodiment, the connecting member 620 is a rod-shaped structure. Four connecting members 620 are provided, and the four connecting members 620 are symmetrically arranged on both sides of the supporting portion 610.

[0057] The support portion 610 is as follows Figure 8 As shown, the support part 610 includes a support seat 611, a column 612, a crossbeam 613, a swing cylinder connector 614, a limit hinge seat 615, and a connecting beam 616. Two columns 612 are provided, and the two columns 612 are arranged in parallel and spaced apart. The lower end of the column 612 is fixedly connected to the upper end of the support seat 611, and the upper ends of the two columns 612 are connected by a crossbeam 613, that is, the two ends of the crossbeam 613 are respectively connected to the upper ends of the two columns 612. The crossbeam 613 and the column 612 are fixedly connected by a pin shaft. The connecting beam 616 is located between the crossbeam 613 and the support seat 611, and the two ends of the connecting beam 616 are respectively connected to the two columns 612, and the swing cylinder connector 614 is installed on the connecting beam 616. The limit hinge seat 615 is connected to the side of the support seat 611 or the side of the column 612. The limit hinge 615 can fix the support part 610 on the fuselage 100. Specifically, a pin is passed through the limit hinge 615 and the connection seat on the fuselage 100, so that the support part 610 is fixed relative to the fuselage 100 and does not rotate. The limit hinge 615 and the connection member 620 are located on the same side of the support part 610.

[0058] There are two main shafts 650, and the two main shafts 650 are respectively connected to the two support seats 611 of the two support parts 610. Preferably, the main shaft 650 is welded to the support seat 611, and the main shaft 650 and the swing cylinder connecting member 614 are located on the same side of the support part 610. One end of the main shaft 650 is fixedly connected to the support seat 611, and the other end is used to connect with the fuselage 100. The two main shafts 650 are located outside the space surrounded by the two support parts 610 and the connecting members 620. In other words, the main shaft 650 is connected to the side of the support seat 611 away from the other support part 61. Preferably, the two main shafts 650 are located on the same straight line. The pile pressing mechanism 600 is installed on the fuselage 100 through the two main shafts 650, and the main shaft 650 is rotatably installed on the fuselage 100, so that the pile pressing mechanism 600 can rotate relative to the fuselage 100. Specifically, the main shaft 650 is a stepped shaft, and a shaft sleeve 121 is installed on the fuselage 100, and the main shaft 650 is installed on the shaft sleeve 121. In this embodiment, the shaft sleeve 121 is made of steel.

[0059] Two swing cylinders 660 are provided, and the two swing cylinders 660 are connected to the two support parts 610 respectively. The swing cylinders 660 connect and drive the support parts 610 to rotate around the main shaft 650. Specifically, the cylinder body of the swing cylinder 660 is hinged on the fuselage 100, and the piston rod of the swing cylinder 660 is connected to the swing cylinder connector 614. Under the push of the swing cylinder 660, the support part 610 and the pile clamping mechanism 630 can reach the required tilt angle, which is suitable for pile foundation pressing requirements with different tilt angles.

[0060] When the limit hinge 615 is fixed on the fuselage 100, the column 612 is perpendicular to the plane where the fuselage 100 is located. At this time, when the plane where the fuselage 100 is located is parallel to the horizontal plane, the pile pressing mechanism 600 can be used for pressing the middle straight pile, and the support part 610 can be fixed relative to the fuselage 100 without starting the swing cylinder 660. Fig. 9 A is a schematic diagram showing a vertical state of the column 612 and the fuselage 100, and B is a schematic diagram showing a state in which the column 612 and the fuselage 100 are relatively inclined and can be used for inclined pile pressing.

[0061] The swing cylinder 660 is equipped with a double balancing valve or a two-way balancing valve, which can ensure that the swing cylinder 660 is stable during the inclined pile pressing process, thereby ensuring that the angle of the inclined pile remains stable during the pile pressing process. The double balancing valve is connected to the swing cylinder 660. The technical solution of connecting the double balancing valve to the swing cylinder 660 to achieve stable cylinder movement is a prior art and will not be repeated here.

[0062] The clamping mechanism 630 is located in the space surrounded by the two supporting parts 610 and the connecting members 620. Fig.10 As shown, the pile clamping mechanism 630 includes a pile clamping box 631 and a pile feeder 634, a pile pressing seat 635, a second friction reducing strip 636 and at least one group of pile clamping assemblies installed on the pile clamping box 631. The pile clamping assembly includes a pile clamping cylinder 632 and a pile clamping jaw 633. The pile clamping box 631 is a box structure as a whole, and a through hole for the pile foundation to pass through is provided on the pile clamping box 631, which is a pile clamping hole 637. Each group of the pile clamping assemblies is provided with a plurality of pile clamping cylinders 632 and pile clamping jaws 633. The pile clamping jaws 633 are located in the pile clamping hole 637 and are used to clamp the pile foundation. The plurality of pile clamping jaws 633 are arranged at intervals along the circumference of the pile clamping hole 637. The plurality of pile clamping cylinders 632 are respectively connected to the plurality of pile clamping jaws 633 , which are connected to and drive the pile clamping jaws 633 to move back and forth in a straight line, with the moving direction being perpendicular to the length direction of the pile clamping hole 637 , so that the pile clamping jaws 633 can clamp pile foundations of different diameters and sections.

[0063] In this embodiment, two groups of pile clamping assemblies are provided. The two groups of pile clamping assemblies are arranged in an upper and lower two-layer structure, that is, arranged along the length direction of the pile clamping hole 637, thereby increasing the pile clamping area and enhancing the pile clamping force.

[0064] Preferably, the piston rod of the pile clamping cylinder 632 is connected to the pile clamping box 631, and the cylinder barrel of the pile clamping cylinder 632 is connected to the pile clamping jaws 633, that is, the piston rod of the pile clamping cylinder 632 and the pile clamping box 631 are relatively fixed, and it is the cylinder body of the pile clamping cylinder 632 that moves relative to the pile clamping box 631, that is, the pile clamping cylinder 632 is an inverted structure. The above arrangement of the pile clamping cylinder 632 makes the cylinder body and the piston rod of the pile clamping cylinder 632 move more smoothly in the axial direction of the piston rod, greatly reduces the probability of the piston rod moving relative to the cylinder body in the radial direction of the piston rod, and reduces the probability of oil leakage of the pile clamping cylinder 632. At the same time, the above arrangement of the pile clamping cylinder 632 can withstand a large pile clamping force and pile pressing reaction force.

[0065] The pile feeder 634 is used for guiding when feeding piles. The pile feeder 634 is installed on the upper end surface of the pile clamping box 631 to guide the pile foundation passing through the pile clamping box 631 from above the pile clamping box 631. There are multiple pile feeders 634, which are arranged at intervals around the entrance of the pile clamping hole 637. The pile feeder 634 can move in a direction close to or away from the center line of the pile clamping hole 637.

[0066] In this embodiment, four pile feeders 634 are provided.

[0067] Specifically, the pile feeder 634 is as follows: Fig.11 As shown, the pile feeder 634 comprises a base 6341, a telescopic rod 6342 and a limit pin. The base 6341 is fixedly mounted on the top of the pile clamp box 631, and the base 6341 is a sleeve structure. The telescopic rod 6342 passes through the base 6341 and can move back and forth in a straight line. A plurality of through holes are also provided on the side wall of the base 6341, and at least one through hole is provided on the telescopic rod 6342. When the telescopic rod 6342 moves along the base 6341, the through holes on the telescopic rod 6342 can be aligned and connected with different through holes on the base 6341 in sequence. When the through holes on the telescopic rod 6342 are connected with the through holes on the base 6341, the limit pin is passed through the through holes on the base 6341 and the through holes on the telescopic rod 6342, and the telescopic rod 6342 is locked on the base 6341. The movable setting of the telescopic rod 6342 makes the pile feeder 634 suitable for piles of different types and different cross-sectional sizes, and has good applicability.

[0068] A plurality of telescopic rods 6342 are arranged at intervals around the entrance of the pile clamp hole 637. One end of the telescopic rod 6342 near the pile clamp hole 637 includes a straight plate and an inclined plate connected in sequence. The straight plate is parallel to the centerline direction of the pile clamp hole 637. The lower end of the inclined plate is connected to the upper end of the straight plate, and the upper end is inclined upward in a direction away from the pile clamp hole 637. In this way, one end of the telescopic rod 6342 near the pile clamp hole 637 forms a trumpet-shaped opening, which guides the pile body when feeding the pile, so that the pile body passes through the pile clamp box 631 more smoothly. If there is no pile feeder 634 for guidance, the pile foundation is likely to bump and collide with the pile clamp box 631 when passing through the pile clamp box 631, resulting in damage to the pile clamp box 631 and the pile body.

[0069] In this embodiment, two rows of through holes are provided on the base 6341 , and the arrangement direction of each row of through holes is parallel to the moving direction of the telescopic rod 6342 .

[0070] The pile pressing seat 635 is installed on the top surface of the pile clamping box 631, and the pile pressing seat 635 is used to connect with the pile pressing member 640. Two pile pressing seats 635 are provided.

[0071] The second friction-reducing strip 636 is installed on the outer surface of the pile clamp box 631. When the pile clamp mechanism 630 moves, the second friction-reducing strip 636 and the column 612 of the support part 610 directly contact and move relative to each other to generate friction, thereby preventing the pile clamp box 631 from directly generating friction with the support part 610. That is, the column 612 also acts as a track, and the pile clamp box 631 and the column 612 are guided by a sliding friction pair, thereby increasing the contact area, reducing the squeezing stress of the pile clamp box 631 on the column 612, improving the stability of the pile pressing, and extending the service life of the product. Furthermore, a separate guide belt can also be provided, which directly contacts the second friction-reducing strip 636 to prevent the column 612 from directly contacting the second friction-reducing strip 636, and a guide belt is installed on each column 612.

[0072] There are two pile-pressing members 640, which are respectively mounted on two cross beams 613, and the pile-pressing members 640 are connected to and drive the pile clamping mechanism 630 to move back and forth linearly. The two pile-pressing members 640 are respectively connected to two pile-pressing seats 635, that is, one end of the pile-pressing member 640 is mounted on the cross beam 613, and the other end is connected to the pile-pressing seat 635.

[0073] In this embodiment, the pile pressing member 640 is a hydraulic cylinder.

[0074] The swing angle detection assembly is used to detect the rotation or swing angle of the support part 610. The swing angle detection assembly includes an angle sensor and an angle indicator. The angle sensor is installed on the main shaft 650 and is used to detect the rotation angle of the main shaft 650. In order to further ensure the reliability of the detection of the rotation angle of the support part 610, a mechanical angle indicator is also provided. Both the angle sensor and the mechanical angle indicator adopt structures or products in the prior art and are installed and used according to the specified method of use.

[0075] The plate inserting mechanism 700 is installed on the boom seat 130 of the fuselage 100. Specifically, the plate inserting mechanism 700 is connected to an end of the boom seat 130 away from the middle part 110. The plate inserting mechanism 700 is used to withstand the reaction force. Specifically, in the process of inclined pile driving, the pile driving mechanism 600 will be subjected to the reaction force of the pile foundation, that is, the reaction force, which is decomposed into a horizontal component force. The horizontal component force is transmitted to the fuselage 100 through the pile driving mechanism 600, and the fuselage 100 is transmitted to the cross shoe 210 through the cross shoe lifting mechanism 400. The horizontal component force increases with the increase of the inclination angle of the pile foundation. When it is large to a certain extent, if there is no plate inserting mechanism to withstand the reaction force, the fuselage 100 will move, causing the pile foundation under construction to break, and even causing major accidents such as damage to the pile driver.

[0076] The plug mechanism 700 is as follows Fig.12As shown, it includes a plugboard box 710, a plugboard 720, a plugboard oil cylinder 730 and a hinge ear 740. The plugboard box 710 is a box structure with high strength and rigidity. The plugboard box 710 is provided with a through hole for the plugboard 720 to pass through. The plugboard 720 adopts a box structure with high strength and rigidity. The cross-section of the middle and upper end of the plugboard 720 is rectangular, and the lower end of the plugboard 720 is a pointed end to reduce the resistance when the plugboard 720 is inserted into the foundation. The upper end of the plugboard 720 is located above the plugboard box 710, and the lower end is located below the plugboard box 710. Cylinder hinge seats connected to the plugboard oil cylinder 730 are provided on two opposite sides of the plugboard 720. There are two plugboard oil cylinders 730, and the two plugboard oil cylinders 730 are respectively located on both sides of the upper end of the plugboard 720. The plug-in plate oil cylinder 730 passes through the plug-in plate box 710, and the plug-in plate oil cylinder 730 is installed upside down, that is, the cylinder barrel of the plug-in plate oil cylinder 730 is installed on the plug-in plate box 710, and the hinge ear on the piston rod head of the plug-in plate oil cylinder 730 is connected to the hinge seat on the plug-in plate 720, and the plug-in plate oil cylinder 730 is connected and drives the plug-in plate 720 to move linearly along the length direction of the through hole on the box 710. Similarly, the plug-in plate oil cylinder 730 is installed with a double balance valve to ensure that the piston rod of the plug-in plate oil cylinder 730 stops stably at a certain position after being extended, thereby ensuring that the plug-in plate 720 can stop stably at this position, preventing oil leakage in the oil circuit from causing the plug-in plate 720 to fall and cause an accident. A plurality of hinge ears 740 for connecting to the fuselage 100 are provided on one side of the plugboard box 710. A hinge ear seat that can cooperate with the hinge ears 740 is provided on the fuselage 100. A pin passing through the hinge ears 740 and the hinge ear seat stably connects the plugboard mechanism 700 to the fuselage 100.

[0077] From above, the lower end of the plug plate 720 can be inserted into the foundation driven by the plug plate cylinder 730, so that the fuselage 100 is more stable during the inclined pile pressing process, and the fuselage 100 is prevented from moving when subjected to the horizontal force of the pile foundation.

[0078] Crane 800 is used to lift pile foundation or some of its accessories. It is mainly used for lifting piles during construction and assisting in pile lifting during pile feeding. Fig.13 and 14 As shown, it includes a boom 810, a boom telescopic mechanism 820, a hoisting mechanism 830, and a boom cylinder 840. One end of the boom 810 is hinged on the fuselage 100 and the other end is suspended. The boom 810 is retractable. The boom telescopic mechanism 820 is connected to and drives the boom 810 to extend or shorten. The hoisting mechanism 830 is used to reel in and unreel the rope. The rope extends from one end of the boom 810 to lift components such as pile foundations. One end of the boom cylinder 840 is hinged on the fuselage 100 and the other end is hinged to the middle part of the boom 810. The boom cylinder 840 is connected to and drives the boom 810 to rotate. The structure of the crane 800 adopts the solution in the prior art, which will not be repeated here.

[0079] In this embodiment, two operating rooms 111 are provided, one of which is used for the driver to control the movement of the pile driver, and the other is used to control the operation of the crane 800. The operating terminal for controlling the pile driver mechanism 600 is integrated in one of the operating rooms 111. The operating room 111 for controlling the crane 800 is installed on the slewing platform 850, and the slewing mechanism 860 is installed on the machine body 100. The slewing mechanism 860 is connected to and drives the slewing platform 850 to slew, so that the operator in the operating room 111 can observe the working area with a better viewing angle.

[0080] The counterweight system is installed on the fuselage 100, and the counterweight system includes a counterweight beam 910 and a counterweight block 920. The length direction of the counterweight beam 910 is parallel to the length direction of the fuselage 100, and a plurality of counterweight beams 910 are provided, which are symmetrically arranged at both ends of the width direction of the fuselage 100. The counterweight blocks 920 are flexibly arranged on the middle part 110, the side pile fuselage 120 and the boom seat 130. The counterweight system is flexible to use and convenient to install and transport.

[0081] In this embodiment, six counterweight beams are provided.

[0082] The hydraulic system includes a pump station 1010, an oil tank 1020 and hydraulic accessories (hydraulic pipes, etc.). The pump station 1010 uses a constant power control plunger pump to maximize the use of the power of the motor, with high construction efficiency, meeting the requirements of energy saving and consumption reduction. The oil tank 1020 stores oil and provides hydraulic oil to each cylinder. The pump station 1010 connects each cylinder to achieve direct control of each cylinder. The technical solution for connecting the pump station 1010, the oil tank 1020 and the cylinder and providing hydraulic power is a prior art and will not be repeated here.

[0083] The control system includes a controller, a display, a monitor, an operation terminal, etc. The operation terminal, the display, the pump station 1010, the angle detector, and each oil cylinder are electrically connected to the controller, and the operation of each oil cylinder is realized through the operation terminal. The display displays the angle and other parameter information detected by the angle detector, and the monitor monitors the working area of ​​the pile driver. The display, the monitor, and the operation terminal are integrated in the operation room 111, which is convenient for the staff to operate and the construction is safe and reliable.

[0084] As described above, the pump station 1010, the controller, and the oil cylinders constitute the pump station electric drive system to realize the electrical control of the oil cylinders. The angle detector and the controller constitute the angle monitoring system to realize the monitoring of the rotation angle of the support part 610.

[0085] The pile driver can also cooperate with the side pile mechanism. Specifically, the plug plate mechanism 700 is removed, and the side pile mechanism is connected to the hinge ear seat on the fuselage 100 that is originally connected to the plug plate mechanism 700. The side pile mechanism is used to press the side pile into the foundation. The side pile refers to a wooden pile used to mark the intersection of the roadbed slope line and the ground in roads or civil engineering. The specific structure of the side pile mechanism itself can adopt the solution in the prior art, which will not be repeated here.

[0086] Furthermore, a notch is provided on the inner side of the cross shoe 210, and the inner side of the cross shoe 210 refers to the side of one cross shoe 210 facing the other cross shoe 210. In this way, the distance between the pile foundation entrance on the inner side of the cross shoe 210 and the obstacle (such as a wall) on the outer side of the cross shoe 210 can be reduced, which is conducive to more effective use of land resources.

[0087] Based on the above structure, the working process of the utility model is as follows: the lateral walking, longitudinal walking and steering of the fuselage are realized through the lateral walking mechanism 200, the longitudinal walking mechanism 300, the lateral shoe lifting mechanism 400 and the longitudinal shoe lifting mechanism 500, so that the pile pressing mechanism 600 can accurately reach the top of the pile foundation hole. When pressing the inclined pile, first, the swing cylinder 660 drives the support part 610 to rotate the support part 610, and the swing angle detection component detects the rotation angle of the support part 610. After rotating the set angle, the swing cylinder 660 stops driving and stabilizes at the angle. Then, the pile foundation is lifted by the crane 800, and the pile foundation is inserted into the pile pressing mechanism 600. Under the guidance of the pile feeder 634, the pile foundation passes through the pile clamping hole 637 smoothly. Next, the pile clamping cylinder 632 drives the pile clamping jaws 633 to make the pile clamping jaws 633 contact and clamp the pile foundation. Finally, the pile driving member 640 is started, and the pile driving member 640 drives the pile clamping mechanism 630, and the pile clamping mechanism 630 drives the pile foundation to move synchronously. After the pile foundation moves one step, the pile clamping jaws 633 release the pile foundation, and then the pile driving member 640 drives the pile clamping mechanism 630 to move in the opposite direction. The pile clamping jaws 633 clamp the pile foundation again, and the pile driving member 640 drives the pile clamping mechanism 630 to move, so that the pile foundation moves forward another step. This process is repeated, and the pile foundation is gradually moved to the set position inserted into the foundation.

[0088] Finally, it is necessary to explain here that the above embodiments are only used to further illustrate the technical solution of the utility model in detail and cannot be understood as limiting the protection scope of the utility model. Some non-essential improvements and adjustments made by technicians in this field based on the above content of the utility model belong to the protection scope of the utility model.

Claims

1. A pile driving mechanism of a hydraulic static pile driver, characterized in that: The pile driver comprises a machine body (100), the pile driving mechanism is installed on the machine body (100), the pile driving mechanism comprises a support part (610), a connecting part (620), a pile clamping mechanism (630), a pile driving part (640), a main shaft (650), a swing cylinder (660) and a swing angle detection component, two support parts (610) are provided, the two support parts (610) are arranged in parallel and spaced apart, the two support parts (610) are connected by a plurality of connecting parts (620), and the structure formed by connecting the two support parts (610) and each connecting part (620) has an enclosed space, and the enclosed space is The space is used to accommodate the pile clamping mechanism (630) and allow the pile foundation to pass through. The pile clamping mechanism (630) is used to clamp the pile foundation. The pile pressing member (640) is connected to and drives the pile clamping mechanism (630) to move back and forth linearly. The pile clamping mechanism (630) slides on the support part (610). One end of the main shaft (650) is fixedly connected to the support part (610) and the other end is rotatably installed on the fuselage (100). One end of the swing cylinder (660) is hinged on the fuselage (100) and the other end is connected to the support part (610). The swing angle detection component is used to detect the rotation angle of the support part (610).

2. The pile pressing mechanism according to claim 1, characterized in that: The support part (610) comprises a support seat (611), a column (612) and a cross beam (613). Two columns (612) are provided. The two columns (612) are arranged in parallel and spaced apart. The lower end of the column (612) is fixedly connected to the upper end of the support seat (611). The upper ends of the two columns (612) are connected by the cross beam (613). The pile pressing member (640) is installed on the cross beam (613).

3. The pile pressing mechanism according to claim 2, characterized in that: The support part (610) further comprises a limit hinge seat (615), wherein the limit hinge seat (615) is connected to a side surface of the support seat (611) or a side surface of the column (612), and the limit hinge seat (615) is used to fix the support part (610) on the fuselage (100).

4. The pile pressing mechanism according to claim 2, characterized in that: The support portion (610) further comprises a swing cylinder connecting member (614) and a connecting beam (616); the connecting beam (616) is located between the cross beam (613) and the support seat (611); two ends of the connecting beam (616) are respectively connected to two columns (612); the swing cylinder connecting member (614) is mounted on the connecting beam (616); and the swing cylinder connecting member (614) is used to connect the swing cylinder (660).

5. The pile pressing mechanism according to claim 2, characterized in that: The pile clamping mechanism (630) comprises a pile clamping box (631) and at least one group of pile clamping assemblies installed on the pile clamping box (631), wherein the pile clamping assembly comprises a pile clamping oil cylinder (632) and a pile clamping jaw (633). The pile clamping box (631) is in a box structure as a whole. The pile clamping box (631) is provided with a through hole for the pile foundation to pass through, which is a pile clamping hole (637). Each group of the pile clamping assemblies is provided with a plurality of pile clamping oil cylinders (632) and pile clamping jaws (633). The pile clamping jaws (633) are located in the pile clamping hole (637) and are used to clamp the pile foundation. The plurality of pile clamping jaws (633) are arranged at intervals along the circumference of the pile clamping hole (637). The plurality of pile clamping oil cylinders (632) are respectively connected to and drive the plurality of pile clamping jaws (633) to move back and forth in a straight line, and the moving direction is perpendicular to the length direction of the pile clamping hole (637).

6. The pile pressing mechanism according to claim 5, characterized in that: When two or more groups of pile clamping assemblies are provided, each group of the pile clamping assemblies is arranged along the length direction of the pile clamping hole (637).

7. The pile pressing mechanism according to claim 5, characterized in that: The pile clamping mechanism (630) further comprises a pile feeder (634), which is used to guide the pile foundation when feeding piles. A plurality of pile feeders (634) are provided, and the plurality of pile feeders (634) are arranged at intervals around the entrance of the pile clamping hole (637). The pile feeders (634) can move in a direction close to or away from the center line of the pile clamping hole (637).

8. The pile pressing mechanism according to claim 5, characterized in that: The pile clamping mechanism (630) further comprises a second friction reducing strip (636), which is mounted on the outer surface of the pile clamping box (631), and the second friction reducing strip (636) is in direct contact with the column (612) and slides along the column (612).

9. The pile pressing mechanism according to claim 5, characterized in that: The pile clamping mechanism (630) further comprises a pile pressing seat (635), which is mounted on the top surface of the pile clamping box (631). The pile pressing seat (635) is used to connect with the pile pressing member (640). Two pile pressing seats (635) and two pile pressing members (640) are provided respectively, and the two pile pressing members (640) are connected to the two pile pressing seats (635) respectively.

10. The pile pressing mechanism according to claim 1, characterized in that: The connecting member (620) is a rod-shaped structure, and two ends of the connecting member (620) are respectively connected to the side surfaces of the two supporting parts (610).

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