A precast concrete screw pile screwing construction machine

Abstract

The present invention discloses a precast concrete spiral pile screwing construction machine, which relates to the technical field of pile driving, including a walking mechanism, the walking mechanism is connected to a driving device through an adjusting mechanism, the power output end of the driving device is connected to a transmission device through a driving shaft, the transmission device is composed of at least two device bodies with equilateral circles, each of the device bodies is detachably connected, and the transmission device has an installation chamber inside for accommodating the spiral pile head to enter, and each of the device bodies is radially limited and connected to the peripheral side of the spiral pile head and then fastened and connected as a whole. The construction machine of the present invention has a compact structure, simple construction, and convenient operation, and can quickly complete the placement of the pile foundation underground. The transmission device is designed as a detachable split structure, which is convenient for fixing the spiral pile heads of different size ranges.

Description

Technical Field

[0001] The invention belongs to the technical field of pile drivers, and in particular relates to a precast concrete spiral pile screwing construction machine. Background Art

[0002] At present, most of the pole tower foundations are concrete pile foundations. During construction, it is usually necessary to first explore and dig a foundation pit, then put in a steel cage for concrete pouring. This is labor-intensive and easily affected by the terrain. The existing pile foundation construction generally uses large pile drivers, which are very inconvenient to use. Due to their large size, they are extremely inconvenient to transport and move. In addition, they have high requirements for terrain. The method of excavating first and then placing piles also requires a long construction time.

[0003] In view of this, a new type of spiral pile has emerged in the industry. It is simple to construct and easy to operate. It can quickly complete the placement of the pile foundation underground and put it into use. The presence of the threaded ribs can increase the lateral resistance of the pile body, enhance the interaction between the pile and the soil, effectively improve its bearing capacity, extend its service life, and thus improve the stability and safety of the tower. However, there is no construction equipment specifically for the new type of spiral pile in the industry.

[0004] Therefore, it is necessary to propose a precast concrete screw pile screwing construction machine to solve the construction problem of the screw pile. Summary of the invention

[0005] The purpose of the present invention is to provide a precast concrete screw pile screwing construction machine to solve the construction problems of the screw piles in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: a precast concrete screw pile screw-in construction machine, including a walking mechanism, the walking mechanism is connected to a driving device through an adjusting mechanism, the power output end of the driving device is connected to a transmission device through a driving shaft, the transmission device is composed of at least two device bodies with equilateral circles, each of the device bodies is detachably connected, and the transmission device has an installation chamber inside for accommodating the screw pile head, and each of the device bodies is radially limited and connected to the circumferential side of the screw pile head and then fastened into one.

[0007] Preferably, fixing rods arranged in radial direction are evenly distributed around the circumference of the screw pile head, and positioning holes cooperating with the fixing rods are opened on the device body.

[0008] Preferably, the fixing rod is pre-buried on the circumference of the screw pile head.

[0009] Preferably, an external thread is provided on the rod body of the fixing rod, and a nut for fastening the device body is threadedly connected thereto.

[0010] Preferably, the transmission device is composed of two semicircular first device bodies and a second device body, and a radially protruding connecting ear is provided at the connecting position between the first device body and the second device body, and at least one connecting hole is opened on the connecting ear.

[0011] Preferably, one end of the first device body and the second device body has a semicircular shaft connection hole connected to the drive shaft, and the two semicircular shaft connection holes are spliced ​​into a shaft connection hole that cooperates with the drive shaft for transmission.

[0012] Preferably, at least one keyway is formed on the circumferential side of the shaft connection hole.

[0013] Preferably, the adjustment mechanism includes a first telescopic rod, a fixed connecting arm, a second telescopic rod and a connecting rod, the fixed connecting arm includes a fixed body and a connecting arm extending to one side from the fixed body, the bottom end of the fixed body is hinged to the walking mechanism, the top end of the fixed body is movably connected to the walking mechanism through the first telescopic rod, one end of the connecting arm away from the fixed body is hinged to the side of the driving device, one end of the second telescopic rod is fixed to a side of the fixed body facing the driving device, and the other end is hinged to the connecting rod, and one end of the connecting rod away from the second telescopic rod is fixed to both sides of the driving device.

[0014] Preferably, the connecting arm and the second telescopic rod are distributed at an acute angle, and the second telescopic rod and the connecting rod are distributed at an obtuse angle.

[0015] The present invention discloses the following technical effects:

[0016] The present invention provides a precast concrete screw pile screwing construction machine, which is simple to construct and easy to operate, and can quickly complete the placement of the pile foundation underground and put it into use. The present invention adopts the design of a hollow transmission device, which can be opened left and right to fix the head of the screw pile within the opening size range. The driving device controls the rotation height and rotation speed, drives the pile body to rotate, and makes the entire pile body rotate and screw into the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a front view of an embodiment of the present invention;

[0019] Figure 2 It is a right side view of an embodiment of the present invention;

[0020] Figure 3 A top view of an embodiment of the present invention;

[0021] Figure 4 The three-dimensional structure of the embodiment of the present invention Figure 1 ;

[0022] Figure 5 The three-dimensional structure of the embodiment of the present invention Figure 2 ;

[0023] Figure 6 This is a schematic diagram of the structure of an embodiment of the present invention without the walking mechanism;

[0024] Figure 7 It is a structural schematic diagram of a transmission device in an embodiment of the present invention;

[0025] Figure 8 A top view of a transmission device in an embodiment of the present invention;

[0026] Fig. 9 A diagram showing the coordination relationship between the screw pile head and the transmission device in an embodiment of the present invention;

[0027] Fig.10 A diagram showing the relationship between the pile head of the screw pile and the transmission device in a top view in an embodiment of the present invention;

[0028] Fig.11 It is a schematic diagram of the assembly of the screw pile head and the transmission device in the embodiment of the present invention;

[0029] Fig.12 It is a schematic diagram of the assembly of the screw pile head and the transmission device in another embodiment of the present invention.

[0030] Among them, 1. walking mechanism; 2. connecting seat; 3. fixed connecting arm; 31. fixed body; 32. connecting arm; 4. first telescopic rod; 5. second telescopic rod; 6. connecting rod; 7. driving device; 71. hinged seat; 8. driving shaft; 9. transmission device; 9a. first device body; 9b. second device body; 90. installation chamber; 91. positioning hole; 92. semicircular hole; 93. semicircular shaft connection hole; 94. keyway; 95. assembly hole; 96. connecting ear; 10. screw pile head; 101. embedded anchor bolt; 11. fixing rod; 12. screw pile; 13. bolt; 14. nut. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figure 1 As shown, the present invention provides a precast concrete spiral pile screw-in construction machine, including a walking mechanism 1, one side of the walking mechanism 1 is movably connected with an adjusting mechanism, the adjusting mechanism is connected to a driving device 7 at one end away from the walking mechanism 1, the driving device 7 is connected to a transmission device 9 through a driving shaft 8 below, the transmission device 9 is detachably connected to a spiral pile head 10, the bottom of the spiral pile head 10 is fixedly connected to a spiral pile 12, the spiral pile 12 and the spiral pile head 10 are obtained by prefabrication to form a prefabricated pile of an integrated structure, wherein the pile body of the spiral pile 12 has a spiral threaded rib on the outside, which is convenient for screwing into the soil and forming a tight combination with the soil, the spiral pile head 10 located at the top of the spiral pile 12 is used to form a transmission match with the transmission device 9, and then is driven to rotate so as to be screwed into the soil, and when the spiral pile head 10 is prefabricated, a plurality of pre-embedded anchor bolts 101 are cast. During construction, the size of the screw pile 12 is first determined to ensure that the pile body height is within the adjustable range of the adjustment mechanism, and that the screw pile head 10 can be fixed in the transmission device 9. The transmission device 9 is radially limited and connected to the screw pile head 10, and is coaxially connected. When the drive device 7 is started, it can drive the prefabricated pile to rotate as a whole, so that the pile body rotates at a uniform speed into the soil. After reaching the predetermined position, the drive device 7 is stopped, and the transmission device 9 is removed from the screw pile head 10.

[0034] Specifically, Figures 4 to 6 As shown, in the above embodiment, the adjustment mechanism includes a first telescopic rod 4, a fixed connecting arm 3, a second telescopic rod 5, and a connecting rod 6; the first telescopic rod 4, the fixed connecting arm 3, the second telescopic rod 5, and the connecting rod 6 cooperate with each other to complete the adjustment of the angle and height of the driving device 7.

[0035] like Figures 4 to 6As shown, the fixed connecting arm 3 includes a triangular fixed body 31 and two connecting arms 32 extending parallel to one side, and the end of the connecting arm 32 is hinged on the side of the driving device 7. Specifically, the fixed connecting arm 3 has three hinged parts, and the three hinged parts form a triangular support structure, wherein the top angle and the bottom angle of one side of the fixed body 31 are respectively the first hinged part and the second hinged part, and the connecting arm 32 extends from the bottom angle of the other side of the fixed body 31 in a direction away from the second hinged part, and the third hinged part is arranged at the end of the connecting arm 32. At the same time, a connecting seat 2 and a first telescopic rod 4 are fixedly connected on one side of the walking mechanism 1, and an articulated seat 71 is fixedly connected on the side of the driving device 7, the first articulated part is hinged on the connecting seat 2, the second articulated part is hinged to the extended end of the first telescopic rod 4, and the third articulated part is hinged on the articulated seat 71 on the side of the driving device 7. More specifically, the connecting lines of the first articulated part, the second articulated part, and the third articulated part form a spatial triangular support structure.

[0036] In the above embodiment, the second telescopic rod 5 extending upward from the driving device 7 is fixedly connected to one side of the fixed body 31 facing the driving device 7. The second telescopic rod 5 and the connecting arm 32 both extend from the fixed body 31 toward the driving device 7, and the two are arranged at a certain angle, such as Figure 1 As shown, one end of the second telescopic rod 5 away from the fixed body 31 is hinged with a connecting rod 6 , and the connecting rod 6 is fixedly connected to two side surfaces of the driving device 7 .

[0037] like Figure 6 As shown, the power output end of the driving device 7 is connected to the transmission device 9 through the driving shaft 8. The transmission device 9 is a detachable structure, which can be connected to the screw pile head 10 and can be detached from the screw pile head 10 after the operation is completed.

[0038] Further optimization scheme, as an implementation method, the transmission device 9 is composed of two or more equi-cut circles, and has an installation chamber 90 inside to accommodate the screw pile head 10. In this embodiment, taking two equi-cut circles as an example, the transmission device 9 is composed of two openable semi-cylindrical first device bodies 9a and second device bodies 9b. The first device body 9a and the second device body 9b have the same structure and are symmetrically assembled to form a detachable connection structure. The installation chamber 90 after the two are spliced ​​has a certain height, which can ensure that it does not affect the embedded anchor bolts 101 reserved on the upper surface of the screw pile head 10. Figure 7As shown, specifically, a positioning hole 91 penetrating to the installation chamber 90 is formed on the cylindrical outer peripheral surface of the first device body 9a and the second device body 9b. When the positioning hole 91 is located at the splicing position of the two device bodies, the positioning hole 91 is divided into semicircular holes 92, that is, a radial semicircular hole 92 is formed on the splicing surface of the first device body 9a facing the second device body 9b, and correspondingly, a symmetrical semicircular hole 92 is formed at the corresponding position of the splicing surface of the second device body 9b facing the first device body 9a. When the two semicircular holes 92 are spliced, they form a complete positioning hole 91. In this embodiment, four positioning holes 91 are provided, and correspondingly, four fixing rods 11 are fixedly connected to the circumferential side of the screw pile head 10. The four fixing rods 11 cooperate with the four positioning holes 91 to form positioning. The four positioning holes 91 are provided to facilitate assembly and positioning, and can achieve a good transmission effect. Fig. 9 and Fig.10 As shown, during assembly, the positioning holes 91 of the first device body 9a and the second device body 9b are aligned with the two fixing rods 11 on the opposite sides and can be spliced ​​inwardly, and the semicircular holes 92 just hold the other two fixing rods 11. If three are set, it is not easy to assemble and position, if two are set, it is easy to shake around the fixing rods 11 after positioning, and if more than four are set, it is even more difficult to splice and position.

[0039] According to a further optimized solution, the fixing rod 11 is pre-installed when the screw pile head 10 is cast.

[0040] Further optimization scheme, such as Figure 7 and Figure 8 As shown, the ends of the first device body 9a and the second device body 9b connected to the drive shaft 8 have a semicircular shaft connection hole 93, and the two semicircular shaft connection holes 93 are close to each other and spliced ​​to form a shaft connection hole that forms a transmission match with the drive shaft 8; the end surfaces of the first device body 9a and the second device body 9b connected to the drive shaft 8 are provided with a plurality of assembly holes 95 for connecting with the drive shaft. It can be understood that at least one keyway 94 is provided on the peripheral side of the shaft connection hole to achieve transmission match with the drive shaft 8. It should be understood that there are many ways to achieve transmission match, and this embodiment only proposes a connection method that is easier to achieve. By way of example, a coupling, meshing gears, etc. can also be provided, which are not specifically limited in this embodiment.

[0041] Further optimization scheme, in this embodiment, the splicing surface of the first device body 9a and the second device body 9b protrudes outward with a mutually matching connecting ear 96, and the connecting ear 96 is provided with at least one connecting hole, and the first device body 9a and the second device body 9b are fastened and assembled by bolts 13, as shown in detail. Fig.11 The bolts 13 are used for tightening to reduce the occurrence of slippage, so that the connection between the transmission device 9 and the prefabricated pile is more stable and the transmission effect is better.

[0042] In some embodiments, the outer peripheral surface of the fixing rod 11 is provided with threads, and after the assembly with the transmission device 9 is completed, it is fastened by the nut 14, as shown in FIG. Fig.12 shown.

[0043] In some embodiments, the traveling mechanism 1 is not limited to an engineering vehicle or a pile foundation platform with a walking function. The bottom of the traveling mechanism 1 is provided with traveling wheels and is driven by a power mechanism.

[0044] In some embodiments, a lifting device and a supporting system are provided at the bottom of the walking mechanism 1 .

[0045] It should be understood that, in practical applications, the driving device 7 may be a driving structure or mechanical device capable of realizing linear motion function / rotational motion / telescopic motion, and illustratively, may be a hydraulic cylinder, an electric cylinder, a rotary motor, and the like.

[0046] Compared with the construction equipment in the prior art, the precast concrete screw pile driving construction machine of the embodiment of the present invention discloses the following beneficial effects:

[0047] 1. Replace the existing large-scale pile driver equipment, suitable for construction sites of various terrains, easy to construct and operate.

[0048] 2. The design of the transmission device 9 that is hollow and opens to the left and right will not affect the pre-installed anchor bolts 13 on the screw pile 12, and is suitable for screw piles 12 of various sizes, which can save construction time.

[0049] 3. The fixing rod 11 installed on the screw pile 12 can pass through the hole reserved on the transmission device 9 and be fixed by the fixing bolt 13, which can increase the connection strength between the device and the pile body, reduce the slippage between them, and improve the construction efficiency.

[0050] The details not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0051] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A precast concrete screw pile screwing construction machine, characterized in that: The invention comprises a walking mechanism (1), wherein the walking mechanism (1) is connected to a driving device (7) through an adjusting mechanism, wherein the power output end of the driving device (7) is connected to a transmission device (9) through a driving shaft (8), wherein the transmission device (9) is composed of at least two device bodies with equilateral circles, each of which is detachably connected, wherein the transmission device (9) has an installation chamber (90) inside for accommodating a screw pile head (10), wherein each of the device bodies is radially limitedly connected to the peripheral side of the screw pile head (10) and then fastened to form a whole; the peripheral side of the screw pile head (10) is uniformly provided with fixing rods (11) arranged in a radial direction, and the device body is provided with positioning holes (91) cooperating with the fixing rods (11); The adjustment mechanism comprises a first telescopic rod (4), a fixed connecting arm (3), a second telescopic rod (5) and a connecting rod (6); the fixed connecting arm (3) comprises a fixed body (31) and a connecting arm (32) extending from the fixed body (31) to one side; the bottom end of the fixed body (31) is hinged to the walking mechanism (1); the top end of the fixed body (31) is movably connected to the walking mechanism (1) through the first telescopic rod (4); one end of the connecting arm (32) away from the fixed body (31) is hinged to the side of the driving device (7); one end of the second telescopic rod (5) is fixed to a side of the fixed body (31) facing the driving device (7); the other end is hinged to the connecting rod (6); one end of the connecting rod (6) away from the second telescopic rod (5) is fixed to both sides of the driving device (7); The connecting arm (32) and the second telescopic rod (5) are distributed at an acute angle, and the second telescopic rod (5) and the connecting rod (6) are distributed at an obtuse angle.

2. The precast concrete screw pile screwing construction machine according to claim 1 is characterized in that: The fixing rod (11) is pre-buried on the circumference of the screw pile head (10).

3. The precast concrete screw pile screwing construction machine according to claim 2 is characterized in that: The rod body of the fixing rod (11) is provided with an external thread, and is threadedly connected with a nut (14) for fastening the device body.

4. The precast concrete screw pile screwing construction machine according to claim 1, characterized in that: The transmission device (9) is composed of two semicircular first device bodies (9a) and a second device body (9b), and a radially protruding connecting ear (96) is provided at the connecting position between the first device body (9a) and the second device body (9b), and at least one connecting hole is opened on the connecting ear (96).

5. The precast concrete screw pile screwing construction machine according to claim 4, characterized in that: One end of the first device body (9a) and the second device body (9b) has a semicircular shaft connection hole (93) connected to the driving shaft (8), and the two semicircular shaft connection holes (93) are spliced ​​into a shaft connection hole that cooperates with the driving shaft (8) in transmission.

6. The precast concrete screw pile screwing construction machine according to claim 5, characterized in that: At least one keyway (94) is formed on the peripheral side of the shaft connection hole.

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