Tubular pile prestress tensioning machine for concrete pole machining

Abstract

The invention discloses a tubular pile prestress tensioning machine for concrete pole machining, and belongs to the technical field of concrete pole machining. The tubular pile prestress tensioning machine comprises a rail, a lifting frame is arranged at the top of the rail, a mounting seat is fixedly mounted at the top of the lifting frame, a positioning cylinder is fixedly mounted on the left side of the mounting seat, and a loosening mechanism is arranged outside the positioning cylinder; a transmission mechanism is arranged at the top of the mounting seat, a lubricating mechanism is arranged outside the positioning cylinder, and a locking mechanism is arranged outside the mounting seat; according to the device, the loosening mechanism is arranged to assist the pre-tensioning column in loosening in the using process, so that the pre-tensioning column is conveniently separated from a threaded column on a concrete pole mold in the using process, and meanwhile, the lubricating mechanism is arranged to fill lubricating grease on the threaded column on the concrete pole mold in the using process, so that the pre-tensioning column is prevented from being loosened. Therefore, the threaded column and the connecting end are lubricated in an auxiliary mode, and subsequent separation is facilitated.

Description

Technical Field

[0001] This invention relates to the field of cement pole processing technology, and in particular to a prestressed tensioning machine for pipe piles used in cement pole processing. Background Technology

[0002] In the production of concrete products such as cement poles and pipe piles, prestressing is required for the reinforcing cage. Before the concrete is formed, the reinforcing bars are stretched to a predetermined length and locked, like drawing a bow, so that the hardened concrete can withstand a certain compressive stress in advance, thereby greatly improving the crack resistance and structural strength of the finished product. Therefore, a prestressing tensioning machine is required.

[0003] Currently, the prestressed tensioning machines used for pipe piles operate by connecting the tension column to a threaded column on the cement pole mold. Pressure is then applied via a hydraulic rod to pull the threaded column outwards. After the threaded column is pulled out, the nut on the threaded column is tightened. After pre-tensioning, the tension column is released from the threaded column. Because the tension column bears enormous axial force during the tensioning process, the connecting threads between the tension column and the threaded column experience severe friction and deformation under the immense positive pressure, making them prone to locking. When the tensioning is complete and the tension column needs to be released from the threaded column, disassembly is often difficult due to thread lock-up, sometimes even impossible. This requires operators to expend considerable physical effort or use auxiliary tools to forcibly disassemble, which may also damage the threads, reducing the service life of the mold and the tension column. Therefore, there is a need to invent a prestressed tensioning machine for pipe piles used in cement pole processing to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a prestressed tensioning machine for cement pole processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A prestressed tensioning machine for cement pole processing includes a track, a lifting frame at the top of the track, a mounting base fixedly installed at the top of the lifting frame, a positioning cylinder fixedly installed on the left side of the mounting base, a loosening mechanism on the outside of the positioning cylinder, a transmission mechanism at the top of the mounting base, a lubrication mechanism on the outside of the positioning cylinder, and a locking mechanism on the outside of the mounting base. The release mechanism includes a pre-tension column, which is movably installed inside the mounting base. A connecting end is fixedly installed on the left side of the pre-tension column. A fixed base is fixedly installed on the outside of the positioning cylinder. A first hydraulic rod is rotatably installed inside the fixed base. A support is rotatably installed on the telescopic end of the first hydraulic rod. A ratchet is rotatably installed inside the support. A first motor is fixedly installed on the left side of the support. A bidirectional ratchet is fixedly installed on the output end of the first motor. A fixed cylinder is fixedly installed at the bottom of the support. A limit cone is slidably installed inside the fixed cylinder. A spring is fixedly installed between the bottom of the limit cone and the bottom inner wall of the fixed cylinder.

[0006] Preferably, the bottom of the bidirectional pawl is a pointed structure, and the limiting cone is engaged with one side of the pointed end.

[0007] Preferably, the transmission mechanism includes a mounting plate, which is fixedly mounted on the top right side of the mounting base. A second hydraulic rod is fixedly mounted on the right side of the mounting plate. A sliding seat is fixedly mounted through the telescopic end of the second hydraulic rod. A guide rail is fixedly mounted on the top of the mounting base. A limit cylinder is fixedly mounted on the inner side of the left end of the mounting base. A limit rod is slidably mounted inside the limit cylinder. A motor base is fixedly mounted on the right side of the limit rod. The right side of the motor base is fixedly mounted on the left side of the sliding seat. A second motor is fixedly mounted on the motor base. A first gear is fixedly mounted on the output end of the second motor. A second gear is fixedly mounted on the outside of the pre-tensioning column.

[0008] Preferably, the right side of the pre-tensioned column is rotatably mounted on the left side of the sliding seat, and the second gear meshes with the first gear.

[0009] Preferably, the lubrication mechanism includes a sliding frame, which is slidably mounted on the top of the positioning cylinder. An oil injection cylinder is fixedly mounted inside the sliding frame. A filling pipe is fixedly mounted at the bottom of the oil injection cylinder. A one-way valve is provided on the filling pipe. A branch pipe is fixedly mounted at the bottom of the oil injection cylinder. Multiple oil injection nozzles are provided at the bottom of the branch pipe. A piston is slidably mounted inside the oil injection cylinder. An air pipe is fixedly mounted on the right side of the oil injection cylinder near the top.

[0010] Preferably, a connecting rod is fixedly installed on the right side of the sliding frame, and a limiting ring is fixedly installed through the mounting base on the side of the connecting rod away from the sliding frame. An annular groove is provided on the pre-tension column, and the limiting ring is movably installed inside the annular groove.

[0011] Preferably, the locking mechanism includes a mounting cylinder, which is fixedly mounted on the left side of the mounting base. A guide rod is slidably mounted inside the mounting cylinder. A fixing frame is fixedly mounted on the left side of the guide rod. A first electric telescopic rod is fixedly mounted on the inner side of the left end of the mounting base. A guide sleeve is fixedly mounted on the left side of the mounting base. A lifting seat is slidably mounted inside the fixing frame extending to the left side. A second electric telescopic rod is fixedly mounted on the top of the fixing frame. A third motor is fixedly mounted on the right side of the lifting seat. A rotating wheel is fixedly mounted on the output end of the third motor. A pressure wheel is rotatably mounted on the left side of the lifting seat. A belt is provided between the rotating wheel and the pressure wheel.

[0012] Preferably, the telescopic end of the first electric telescopic rod is slidably mounted inside the guide sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a ratchet, a two-way pawl, and a first motor, the pre-tensioning column can be separated from the threaded column of the cement pole mold after pre-tensioning. By reversing the control of the pawl and ratchet engagement, the support is driven to rotate by the first hydraulic rod, thereby achieving auxiliary torque output to the connection end. This effectively overcomes the problem of thread lock-up, reduces the difficulty of disassembly, avoids thread damage caused by manual forced disassembly, and thus improves the service life and operational safety of the equipment. 2. The sliding seat is driven to move along the guide rail by the second hydraulic rod, and the gear meshing transmission is carried out by the second motor to realize the precise rotation and axial movement control of the pre-tensioned column. This not only enables the connecting end to be accurately and stably threadedly connected to the threaded column of the cement pole mold, but the setting of the limiting cylinder and the limiting rod further ensures the linearity and stability of the movement of the pre-tensioned column, and improves the control accuracy and reliability of the tensioning process. 3. By storing lubricating grease in the oil injection cylinder and using air pipe to pressurize and drive the piston, the grease is precisely injected through multiple oil injection nozzles on the branch pipe to the contact area between the threaded column and the connection end of the cement pole mold. The linkage design of the sliding frame and the limit ring allows the oil injection nozzle to automatically align with the injection position as the pre-tension column moves, ensuring that the lubricating grease evenly covers the thread surface, preventing locking, extending the service life of the thread, and improving disassembly efficiency.

[0014] 4. The position of the fixed frame is adjusted by the first electric telescopic rod, and the lifting seat is raised and lowered by the second electric telescopic rod, so that the belt can accurately fit the nut and be tightened. The third motor drives the turntable to drive the belt transmission, so as to tighten the nut on the outside of the threaded column of the cement pole mold, ensuring that the threaded column can be quickly and reliably locked after stretching. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure proposed in this invention; Figure 2 This is a schematic diagram of the front cross-sectional structure proposed in this invention; Figure 3 This is a schematic diagram of the external structure of the release mechanism proposed in this invention; Figure 4 This is a cross-sectional view of the release mechanism proposed in this invention; Figure 5 This is a schematic diagram of the external structure of the pre-tensioned column and its connected mechanism proposed in this invention; Figure 6 This is a cross-sectional view of the mounting base and connected mechanism proposed in this invention. Figure 7 This is a schematic diagram of the appearance structure of the mounting base and the connected mechanism proposed in this invention; Figure 8 This is a schematic diagram of the external structure of the positioning cylinder and its connected mechanism proposed in this invention. Figure 9 This is a cross-sectional structural diagram of the positioning cylinder and its connected mechanism proposed in this invention. Figure 10 This is a cross-sectional view of the lubrication mechanism proposed in this invention; Figure 11 This is a cross-sectional view of the locking mechanism proposed in this invention.

[0016] In the diagram: 1. Track; 2. Lifting frame; 3. Mounting base; 4. Positioning cylinder; 5. Release mechanism; 51. Pre-tension column; 52. Connecting end; 53. Fixed base; 54. First hydraulic rod; 55. Support; 56. Ratchet; 57. First motor; 58. Bidirectional pawl; 59. Fixed cylinder; 510. Limiting cone; 511. Spring; 6. Transmission mechanism; 61. Mounting plate; 62. Second hydraulic rod; 63. Sliding seat; 64. Guide rail; 65. Limiting cylinder; 66. Limiting rod; 67. Motor base; 68. Second motor; 69. 610. First gear; 7. Second gear; 8. Lubrication mechanism; 71. Sliding frame; 72. Oil filling cylinder; 73. Limiting ring; 74. Connecting rod; 75. Filling pipe; 76. One-way valve; 77. Branch pipe; 78. Oil filling nozzle; 79. Piston; 710. Air pipe; 8. Locking mechanism; 81. Mounting cylinder; 82. Guide rod; 83. Fixing frame; 84. First electric telescopic rod; 85. Guide sleeve; 86. Lifting seat; 87. Second electric telescopic rod; 88. Third motor; 89. Rotary wheel; 810. Pressure wheel; 811. Belt. Detailed Implementation

[0017] See Figure 1 and Figure 2A prestressed tensioning machine for cement pole processing includes a track 1, a lifting frame 2 at the top of the track 1, the lifting frame 2 being driven by a hydraulic rod and having pulleys at its bottom for sliding installation on the track 1, a mounting base 3 fixedly installed at the top of the lifting frame 2, a positioning cylinder 4 fixedly installed on the left side of the mounting base 3, a loosening mechanism 5 on the outside of the positioning cylinder 4, a transmission mechanism 6 on the top of the mounting base 3, a lubrication mechanism 7 on the outside of the positioning cylinder 4, and a locking mechanism 8 on the outside of the mounting base 3.

[0018] Currently, commonly used prestressed concrete pipe pile tensioning machines require threaded connections between the tension column and the threaded column on the mold. A hydraulic rod is then used to apply tension, pulling the threaded column out, followed by tightening the nut to lock it in place. However, due to the enormous axial tension on the tension column during the tensioning process, the connecting threads experience severe friction and deformation under high pressure, making them prone to locking. When disassembling the tension column after prestressing, it is often difficult to loosen or even disassemble due to the locked threads. Operators must expend considerable physical strength or use tools to forcibly disassemble it, which not only affects production efficiency but also easily damages the threads, shortening the service life of the mold and the tension column.

[0019] In this invention, the loosening mechanism 5 assists in loosening the pre-tensioned column 51 during use, thereby facilitating the separation of the pre-tensioned column 51 from the threaded column on the cement pole mold. Simultaneously, the lubrication mechanism 7 adds lubricating grease to the threaded column on the cement pole mold during use, thereby providing auxiliary lubrication between the threaded column and the connecting end 52, which facilitates subsequent separation.

[0020] See Figures 3-5 The releasing mechanism 5 includes a pre-tension column 51, which is movably installed inside the mounting base 3. A connecting end 52 is fixedly installed on the left side of the pre-tension column 51, and the connecting end 52 has a threaded hole inside for connecting with the threaded column on the cement pole mold. A fixing base 53 is fixedly installed on the outside of the positioning cylinder 4. A first hydraulic rod 54 is rotatably installed inside the fixing base 53. A support 55 is rotatably installed on the telescopic end of the first hydraulic rod 54. A ratchet 56 is rotatably installed inside the support 55. The connecting end 52 has a hexagonal structure, and a hexagonal through-hole is opened at the center of the ratchet 56. The connecting end 52 passes through the center hole of the ratchet 56. A first motor 57 is fixedly installed on the left side of the support 55. A bidirectional pawl 58 is fixedly installed on the output end of the first motor 57 and is rotatably installed inside the support 55. The bidirectional pawl 58 is rotated by the first motor 57 to make it switch directions and engage with the ratchet 56. A fixed cylinder 59 is fixedly installed at the bottom of the support 55. A limit cone 510 is slidably installed inside the fixed cylinder 59. A spring 511 is fixedly installed between the bottom of the limit cone 510 and the bottom inner wall of the fixed cylinder 59.

[0021] See Figure 4 The bottom of the bidirectional pawl 58 is a pointed structure, and the limiting cone 510 is engaged with one side of the pointed end. The limiting cone 510 engages and fixes the bidirectional pawl 58, so that it works with the bidirectional pawl 58 to make the ratchet 56 rotate in one direction.

[0022] In this invention, when the connecting end 52 is connected to the threaded post of the cement rod mold, the pre-tension post 51 drives the connecting end 52 to move to the right and rotate synchronously, so that the connecting end 52 is connected to the threaded post. At this time, the connecting end 52 moves inside the ratchet 56, and at the same time, the connecting end 52 drives the ratchet 56 to rotate. At this time, the ratchet 56 pushes the bidirectional pawl 58 to move. When separating, the first motor 57 drives the bidirectional pawl 58 to change direction, and then the hydraulic rod drives the support 55 to rotate. At this time, the bidirectional pawl 58 is locked with the ratchet 56, so that the support 55 drives the connecting end 52 to rotate assistedly through the ratchet 56, thereby separating the auxiliary connecting end 52 from the threaded post. After being released, the first motor 57 drives the bidirectional pawl 58 to rotate to the middle position, at which time the bidirectional pawl 58 separates from the ratchet 56.

[0023] See Figure 6 and Figure 7 The transmission mechanism 6 includes a mounting plate 61, which is fixedly mounted on the top right side of the mounting base 3. A second hydraulic rod 62 is fixedly mounted on the right side of the mounting plate 61. A sliding seat 63 is fixedly mounted through the extension end of the second hydraulic rod 62 and through the mounting plate 61. A guide rail 64 is fixedly mounted on the top of the mounting base 3, and the sliding seat 63 is slidably mounted on the outside of the guide rail 64. A limit cylinder 65 is fixedly mounted on the inner side of the left end of the mounting base 3. A limit rod 66 is slidably mounted inside the limit cylinder 65. There are four limit cylinders 65 and four limit rods 66. A motor base 67 is fixedly mounted on the right side of the limit rod 66. The right side of the motor base 67 is fixedly mounted on the left side of the sliding seat 63. A second motor 68 is fixedly mounted on the motor base 67. A first gear 69 is fixedly mounted on the output end of the second motor 68. A second gear 610 is fixedly mounted on the outside of the pre-tension column 51.

[0024] The right side of the pre-tension column 51 is rotatably mounted on the left side of the sliding seat 63, and the second gear 610 meshes with the first gear 69.

[0025] In this invention, when connecting end 52 to the threaded post of cement rod mold, the second motor 68 drives the first gear 69 to rotate, which in turn drives the pre-tension post 51 to rotate through the meshing second gear 610. The pre-tension post 51 then drives the connecting end 52 to rotate, connecting end 52 to the threaded post. The second hydraulic rod 62 drives the sliding seat 63 to slide to the left on the guide rail 64. After the connection is completed, the second hydraulic rod 62 pulls the sliding seat 63 to the right, causing the sliding seat 63 to move the threaded post to the right through the pre-tension post 51. During the movement, the pre-tension post 51 slides inside the left side of the mounting base 3, while the connecting end 52 slides inside the ratchet 56, thereby causing the threaded post to pull the steel bars inside the cement rod mold. At this time, the motor base 67 drives the limiting rod 66 to slide inside the limiting cylinder 65.

[0026] See Figures 8-10 The lubrication mechanism 7 includes a sliding frame 71, which is slidably mounted on the top of the positioning cylinder 4. An oil injection cylinder 72 is fixedly mounted inside the sliding frame 71. A filling pipe 75 is fixedly mounted on the bottom of the oil injection cylinder 72. A one-way valve 76 is provided on the filling pipe 75. Lubricating grease is added to the inside of the oil injection cylinder 72 through the filling pipe 75. A branch pipe 77 is fixedly mounted on the bottom of the oil injection cylinder 72. Multiple oil injection nozzles 78 are provided at the bottom of the branch pipe 77. A piston 79 is slidably mounted inside the oil injection cylinder 72. An air pipe 710 is fixedly mounted on the right side of the oil injection cylinder 72 near the top.

[0027] A connecting rod 74 is fixedly installed on the right side of the sliding frame 71. A limiting ring 73 is fixedly installed through the mounting base 3 on the side of the connecting rod 74 away from the sliding frame 71. An annular groove is opened on the pre-tension column 51, and the limiting ring 73 is movably installed inside the annular groove.

[0028] In this invention, lubricating grease is added to the inside of the oil injection cylinder 72 through the injection pipe 75. The lubricating grease enters the inside of the oil injection cylinder 72 through the one-way valve 76 and pushes the piston 79 upward. At this time, the air pipe 710 exhausts air outward. When the pre-tensioning column 51 moves, the pre-tensioning column 51 drives the connecting rod 74 to slide through the limiting ring 73, and the connecting rod 74 drives the sliding frame 71 to slide on the positioning cylinder 4, so that the position of the oil injection nozzle 78 corresponds to the port of the connecting end 52. When adding lubricating grease, the air pipe 710 is connected to the air pump, so that the air pipe 710 injects air and pressurizes the inside of the oil injection cylinder 72, so that the piston 79 moves downward and presses the lubricating grease inside the oil injection cylinder 72. The lubricating grease is then added to the threaded column of the cement rod mold through the oil injection nozzle 78 on the branch pipe 77, thereby lubricating the threaded column and the connecting end 52.

[0029] See Figure 11The locking mechanism 8 includes a mounting cylinder 81, which is fixedly mounted on the left side of the mounting base 3. A guide rod 82 is slidably mounted inside the mounting cylinder 81. A fixing frame 83 is fixedly mounted on the left side of the guide rod 82. A first electric telescopic rod 84 is fixedly mounted on the inner side of the left end of the mounting base 3. The telescopic end of the first electric telescopic rod 84 passes through the mounting base 3 and is fixedly mounted on the right side of the fixing frame 83. A guide sleeve 85 is fixedly mounted on the left side of the mounting base 3. A lifting seat 86 is slidably mounted inside the fixing frame 83 to the left side. A second electric telescopic rod 87 is fixedly mounted on the top of the fixing frame 83. The telescopic end of the second electric telescopic rod 87 passes through the top of the fixing frame 83 and is fixedly mounted on the top of the lifting seat 86. A third motor 88 is fixedly mounted on the right side of the lifting seat 86. A rotating wheel 89 is fixedly mounted on the output end of the third motor 88. A pressure wheel 810 is rotatably mounted on the left side of the lifting seat 86. A belt 811 is provided between the rotating wheel 89 and the pressure wheel 810.

[0030] The telescopic end of the first electric telescopic rod 84 is slidably installed inside the guide sleeve 85.

[0031] In this invention, after pre-tensioning, the first electric telescopic rod 84 drives the fixing frame 83 to slide left and right, so that the belt 811 corresponds to the position of the nut outside the threaded column on the cement pole mold. Then, the second electric telescopic rod 87 drives the lifting seat 86 to move upward, so that the belt 811 tightens the nut. Then, the third motor 88 drives the rotating wheel 89 to rotate, so that it drives the belt 811 to drive the nut to rotate outside the threaded column, so that the nut moves to the left and locks the threaded column.

[0032] In this invention, the lifting frame 2 is first moved to the left on the track 1, and the lifting frame 2 is raised and lowered simultaneously, so that the connecting end 52 is aligned with the threaded post on the cement pole mold. After the connecting end 52 is aligned with the threaded post, the sliding seat 63 is driven to slide to the left on the guide cabinet by the second hydraulic rod 62, so that the sliding seat 63 drives the pre-tensioning column 51 to move to the left. At the same time, the second motor 68 drives the first gear 69 to rotate, so that the first gear 69 drives the pre-tensioning column 51 to rotate through the meshing second gear 610, so that the connecting end 52 on the pre-tensioning column 51 rotates, so that the connecting end 52 is threadedly connected to the threaded post. After the connection, the air pump supplies air to the air pipe 710, so that the piston 79 slides downward inside the oil injection cylinder 72, so that the piston 79 presses the lubricating grease, so that the lubricating grease is squeezed onto the threaded post through the oil injection nozzle 78 on the branch pipe 77, so that the lubricating grease is synchronously injected into the connecting end 52. During the rotational connection process of the connecting end 52, the connecting end 52 drives the ratchet 56 to rotate inside the support 55. After the connection is completed, the sliding seat 63 is driven to slide to the right on the guide rail 64 by the second hydraulic rod 62, so that the sliding seat 63 drives the pre-tension column 51 to move to the right, so that the pre-tension column 51 pulls the threaded column to the right through the connecting end 52. After the threaded column is pulled out, the fixed frame 83 is slidably adjusted by the first electric telescopic rod 84, so that the belt 811 corresponds to the position of the nut outside the threaded column on the cement pole mold. Then, the lifting seat 86 is moved upward by the second electric telescopic rod 87, so that the belt 811 tightens the nut. Then, the rotating wheel 89 is driven to rotate by the third motor 88, so that it drives the belt 811 to drive the nut to rotate outside the threaded column, so that the nut moves to the left and locks the threaded column. After pre-tensioning is completed, the first motor 57 drives the bidirectional pawl 58 to reverse direction, and then the hydraulic rod drives the support 55 to rotate. At this time, the bidirectional pawl 58 is locked with the ratchet 56, so that the support 55 drives the connecting end 52 to rotate through the ratchet 56, thereby separating the auxiliary connecting end 52 from the threaded column. After the action, it stops immediately, and the first motor 57 drives the bidirectional pawl 58 to rotate to the middle position. At this time, the bidirectional pawl 58 is separated from the ratchet 56. Then, the second motor 68 drives the first gear 69 to reverse, so that the pre-tensioning column 51 reverses, and the connecting end 52 separates from the threaded column.

Claims

1. A prestressed tensioning machine for pipe piles used in cement pole processing, comprising a track (1), characterized in that, A lifting frame (2) is provided on the top of the track (1), a mounting base (3) is fixedly installed on the top of the lifting frame (2), a positioning cylinder (4) is fixedly installed on the left side of the mounting base (3), a loosening mechanism (5) is provided on the outside of the positioning cylinder (4), a transmission mechanism (6) is provided on the top of the mounting base (3), a lubrication mechanism (7) is provided on the outside of the positioning cylinder (4), and a locking mechanism (8) is provided on the outside of the mounting base (3). The release mechanism (5) includes a pre-tension column (51), which is movably installed inside the mounting base (3). A connecting end (52) is fixedly installed on the left side of the pre-tension column (51). A fixed base (53) is fixedly installed on the outside of the positioning cylinder (4). A first hydraulic rod (54) is rotatably installed inside the fixed base (53). A support (55) is rotatably installed on the telescopic end of the first hydraulic rod (54). A ratchet (56) is rotatably installed inside the support (55). A first motor (57) is fixedly installed on the left side of the support (55). A bidirectional ratchet (58) is fixedly installed on the output end of the first motor (57). A fixed cylinder (59) is fixedly installed at the bottom of the support (55). A limit cone (510) is slidably installed inside the fixed cylinder (59). A spring (511) is fixedly installed between the bottom of the limit cone (510) and the bottom inner wall of the fixed cylinder (59).

2. The prestressed tensioning machine for pipe piles used in cement pole processing according to claim 1, characterized in that, The bottom of the bidirectional pawl (58) is a pointed structure, and the limiting cone (510) is engaged on one side of the pointed end.

3. The prestressed tensioning machine for pipe piles used in cement pole processing according to claim 1, characterized in that, The transmission mechanism (6) includes a mounting plate (61), which is fixedly mounted on the top right side of the mounting base (3). A second hydraulic rod (62) is fixedly mounted on the right side of the mounting plate (61). A sliding seat (63) is fixedly mounted through the extension end of the second hydraulic rod (62) through the mounting plate (61). A guide rail (64) is fixedly mounted on the top of the mounting base (3). A limit cylinder (65) is fixedly mounted on the inner side of the left end of the mounting base (3). A limit rod (66) is slidably mounted inside the limit cylinder (65). A motor seat (67) is fixedly mounted on the right side of the limit rod (66). The right side of the motor seat (67) is fixedly mounted on the left side of the sliding seat (63). A second motor (68) is fixedly mounted on the motor seat (67). A first gear (69) is fixedly mounted on the output end of the second motor (68). A second gear (610) is fixedly mounted on the outside of the pre-tension column (51).

4. A prestressed tensioning machine for cement pole processing according to claim 3, characterized in that, The right side of the pre-tension column (51) is rotatably mounted on the left side of the sliding seat (63), and the second gear (610) meshes with the first gear (69).

5. A prestressed tensioning machine for cement pole processing as described in claim 1, characterized in that, The lubrication mechanism (7) includes a sliding frame (71), which is slidably mounted on the top of the positioning cylinder (4). An oil injection cylinder (72) is fixedly mounted inside the sliding frame (71). An injection pipe (75) is fixedly mounted at the bottom of the oil injection cylinder (72). A one-way valve (76) is provided on the injection pipe (75). A branch pipe (77) is fixedly mounted at the bottom of the oil injection cylinder (72). Multiple oil injection nozzles (78) are provided at the bottom of the branch pipe (77). A piston (79) is slidably mounted inside the oil injection cylinder (72). An air pipe (710) is fixedly mounted on the right side of the oil injection cylinder (72) near the top.

6. A prestressed tensioning machine for cement pole processing as described in claim 5, characterized in that, A connecting rod (74) is fixedly installed on the right side of the sliding frame (71). The side of the connecting rod (74) away from the sliding frame (71) passes through the mounting base (3) and is fixedly installed with a limiting ring (73). An annular groove is provided on the pre-tension column (51), and the limiting ring (73) is movably installed inside the annular groove.

7. A prestressed tensioning machine for pipe piles used in cement pole processing according to claim 1, characterized in that, The locking mechanism (8) includes a mounting cylinder (81), which is fixedly mounted on the left side of the mounting base (3). A guide rod (82) is slidably mounted inside the mounting cylinder (81). A fixing frame (83) is fixedly mounted on the left side of the guide rod (82). A first electric telescopic rod (84) is fixedly mounted on the inner side of the left end of the mounting base (3). A guide sleeve (85) is fixedly mounted on the left side of the mounting base (3). A lifting seat (86) is slidably mounted inside the fixing frame (83) to the left side. A second electric telescopic rod (87) is fixedly mounted on the top of the fixing frame (83). A third motor (88) is fixedly mounted on the right side of the lifting seat (86). A rotating wheel (89) is fixedly mounted at the output end of the third motor (88). A pressure wheel (810) is rotatably mounted on the left side of the lifting seat (86). A belt (811) is provided between the rotating wheel (89) and the pressure wheel (810).

8. A prestressed tensioning machine for cement pole processing according to claim 7, characterized in that, The telescopic end of the first electric telescopic rod (84) is slidably installed inside the guide sleeve (85).

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