Pipeline locking mechanism and pipe pressing machine adopting same

Abstract

The invention relates to the technical field of pile pressing machines, in particular to a pipeline locking mechanism and a pipe pressing machine adopting the same, the pipeline locking mechanism comprises a mounting frame and one or more pipe fittings placed above the mounting frame, the pipeline locking mechanism further comprises a clamping assembly, the clamping assembly comprises two hydraulic rods symmetrically mounted on the mounting frame, and two clamping cams are rotationally mounted in a fixing frame; the positioning assembly comprises a first clamping roller installed between the two hydraulic rods, and the upper side and the lower side of the fixing frame are each provided with two sets of second clamping rollers; and the adjusting assembly comprises a detection piece installed above the fixing frame and further comprises an adjusting piece used for adjusting the position of the pipe fitting located at the upper end. The positioning assembly is used for assisting in positioning of the pipe fittings, the first clamping rollers are extruded through the outer walls of the pipe fittings, so that the two sets of second clamping rollers are driven to clamp and position the pipe fittings, the clamping plates are used for position adjustment, the detection piece is used for position detection of the two pipe fittings, it is guaranteed that ports of the two pipe fittings are aligned, and the pile pressing progress is accelerated.

Description

Technical Field

[0001] This invention relates to the field of pile driving machine technology, specifically to a pipe locking mechanism and a pipe driving machine using the mechanism. Background Technology

[0002] Anchored static pressure piles are a construction method that combines anchor bolts and static pile driving. During construction, pile holes are first drilled (or pre-drilled) in the building foundation, anchor bolts are installed (or pre-embedded) using structural adhesive, and then a reaction frame is installed. Utilizing the building's own weight as a reaction force, jacks are used to drive the steel piles or precast concrete piles into the soil section by section. Once the pile driving force and driving depth meet the design requirements, the piles are connected to the foundation, thereby improving the bearing capacity of the foundation and controlling building settlement.

[0003] First, the pipe fittings are hoisted onto the anchor static pressure piles. During this process, the pipe fittings need to be aligned because the existing anchor static pressure piles can only clamp and pull down the pipe fittings, but cannot assist in positioning, resulting in low accuracy of pile driving. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a pipe locking mechanism and a pipe pressing machine employing this mechanism, which can effectively solve the problem of low pile pressing accuracy caused by the lack of positioning components in existing technologies.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a pipe locking mechanism and a pipe crimping machine using the mechanism, including a mounting frame and one or more pipe fittings placed above the mounting frame, and further comprising: The clamping assembly includes two hydraulic rods symmetrically mounted on a mounting frame, the output ends of the two hydraulic rods being jointly mounted on a fixed frame, and two clamping cams being rotatably mounted in the fixed frame; The positioning assembly includes a first clamping roller installed between two hydraulic rods, and two sets of second clamping rollers are respectively installed on the upper and lower sides of the fixing frame. When the two first clamping rollers move away from each other, the two sets of second clamping rollers move closer to each other. An adjustment assembly for adjusting the alignment of two pipe fittings to a concentric state includes a detection element mounted above the mounting bracket for detecting whether the contact ends of the two pipe fittings are aligned, and an adjustment element for adjusting the position of the upper pipe fitting.

[0006] Furthermore, two guide frames are symmetrically fixedly installed on the side wall of the mounting frame, and each guide frame has a guide hole. Two guide tubes are fixedly inserted into the mounting frame.

[0007] Furthermore, a driving rod and a driven rod are rotatably inserted on one side of the fixed frame, and two clamping cams are fixedly sleeved on the driving rod and the driven rod respectively. The outside of the fixed frame is provided with a driving component for driving the driving rod to rotate, and a gear set is provided between the driving rod and the driven rod.

[0008] Furthermore, the positioning assembly also includes a first fixing ring fixedly mounted on the hydraulic rod, a first piston tube mounted on the side of the first fixing ring near the pipe, a first piston rod movably inserted at the end of the first piston tube away from the first fixing ring, a first positioning frame fixedly mounted at the end of the first piston rod, and the first clamping roller rotatably mounted on the first positioning frame.

[0009] Furthermore, the positioning assembly also includes a second fixing ring fixedly mounted on the hydraulic rod. A second piston tube is mounted on the side of the second fixing ring near the pipe. A second piston rod is movably inserted into the end of the second piston tube away from the second fixing ring. A second positioning frame is fixedly mounted at the end of the second piston rod. A sliding frame is slidably mounted in the second positioning frame. The second clamping roller is rotatably mounted on the sliding frame. A first connecting pipe connects the first piston tube and the second piston tube.

[0010] Furthermore, an elastic rod is fixedly installed between the second positioning frame and the sliding frame. Two clamping plates are symmetrically and rotatably installed in the second positioning frame, and a coil spring is provided at the rotatable connection. When the sliding frame moves into the second positioning frame, the included angle between the two clamping plates becomes smaller.

[0011] Furthermore, a reinforcing cam is fixedly installed on both the driving rod and the driven rod. A third piston tube is provided on the side of the two reinforcing cams that are close to each other. A third piston rod is movably inserted at the side of the two third piston tubes that are far apart from each other. A transmission plate is fixedly installed at the end of the two third piston rods. The two transmission plates are slidably installed in correspondence with the two reinforcing cams.

[0012] Furthermore, the detection component includes a third fixing ring fixedly installed above the fixing frame. An electric actuator is installed on the side of the third fixing ring near the pipe. A detection frame is fixedly installed on the output shaft of the electric actuator. The detection frame is an arc-shaped plate in the shape of a semi-circular ring. Multiple rangefinders are mounted on the inner wall of the detection frame on the side away from the electric actuator. The detection component also includes a control box for processing the measurement results of the rangefinders.

[0013] Furthermore, the adjusting component includes a fourth fixing ring installed above the third fixing ring, and the fourth fixing ring is provided with multiple sets of pushers to push the pipe fitting.

[0014] A pipe crimping machine employs the aforementioned pipe locking mechanism.

[0015] The technical solution provided by this invention has the following advantages compared with the known prior art: A positioning component and an adjustment component are set between the two hydraulic rods. The positioning component assists in the positioning of the pipe. The outer wall of the pipe is used to squeeze the first clamping roller, thereby driving two sets of second clamping rollers to clamp and position the pipe. The position is adjusted by the clamping plate. Then, the position of the two pipes is detected by the detection component to ensure that the ends of the two pipes are aligned, thereby improving the progress of pile driving. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0017] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a structural schematic diagram of the first positioning frame section; Figure 3 This is a structural schematic diagram of the second positioning frame section; Figure 4 A diagram showing the working state of the positioning component; Figure 5 This is a structural diagram of the positioning plate section; Figure 6 This is a structural diagram of the testing frame. Figure 7 This is a structural schematic diagram of the clamping component. Figure 8 This diagram illustrates the state of two misaligned and damaged pipe fittings.

[0018] The labels in the diagram represent: 1. Mounting frame; 2. Guide frame; 3. Hydraulic rod; 4. Fixing frame; 5. Driving rod; 6. Driven rod; 7. First fixing ring; 8. First piston tube; 9. First piston rod; 10. First positioning frame; 11. First clamping roller; 12. Second fixing ring; 13. Second piston tube; 14. Second piston rod; 15. Second positioning frame; 16. Sliding frame; 17. Second clamping roller; 18. Clamping plate; 19. Elastic rod; 20. Third fixing ring; 21. Electric actuator; 22. Detection frame; 23. Rangefinder; 24. Fourth fixing ring; 25. Control box; 26. Clamping cam; 27. Reinforcing cam; 28. Transmission plate; 29. ​​Third piston tube; 30. Third piston rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Example 1: refer to Figure 1 A pipe locking mechanism includes a mounting frame 1 and one or more pipe fittings placed above the mounting frame 1. Two guide frames 2 are symmetrically fixedly mounted on the side wall of the mounting frame 1, and each guide frame 2 has a guide hole. Two guide tubes are fixedly inserted through the mounting frame 1. The mechanism also includes a clamping assembly for clamping the pipe fittings. This assembly includes two hydraulic rods 3 symmetrically mounted on the mounting frame 1. The output ends of the two hydraulic rods 3 are jointly mounted on a fixed frame 4. Two clamping cams 26 are rotatably mounted in the fixed frame 4. A driving rod 5 and a driven rod 6 are rotatably inserted on one side of the fixed frame 4, respectively. The two clamping cams 26 are respectively fixedly sleeved on the driving rod 5 and the driven rod 6. A driving member is provided on the outside of the fixed frame 4 for driving the driving rod 5 to rotate, and a gear set is provided between the driving rod 5 and the driven rod 6. The driving member drives the driving rod 5 to rotate, and the gear set drives the driven rod 6 to rotate. It is worth noting that the driving rod 5 and the driven rod 6 rotate in opposite directions, thereby driving the two clamping cams 26 to rotate together. When the two clamping cams 26 rotate, the distance between them changes, and the clamping of the pipe is accomplished by changing the distance. When the hydraulic rod 3 drives the fixing frame 4 to move upward, the distance between the two clamping cams 26 is widened (releasing the pipe). When it reaches the highest point, the distance between the two clamping cams 26 is narrowed (clamping the pipe). The hydraulic rod 3 drives the fixing frame 4 to move downward, inserting the clamped pipe into the target.

[0022] refer to Figure 1 A positioning assembly is also provided between the two hydraulic rods 3. This assembly includes a first clamping roller 11 installed between the two hydraulic rods 3, and two sets of second clamping rollers 17 installed on the upper and lower sides of the fixing frame 4, respectively. When the two first clamping rollers 11 move away from each other, the two sets of second clamping rollers 17 move closer to each other. (Reference) Figure 3 The positioning assembly also includes a first fixing ring 7 fixedly mounted on the hydraulic rod 3. A first piston tube 8 is mounted on the side of the first fixing ring 7 near the pipe fitting. A first piston rod 9 is movably inserted into the end of the first piston tube 8 away from the first fixing ring 7. A first positioning frame 10 is fixedly mounted on the end of the first piston rod 9. A first clamping roller 11 is rotatably mounted on the first positioning frame 10. (Reference) Figure 4The positioning assembly also includes a second fixing ring 12 fixedly mounted on the hydraulic rod 3. A second piston tube 13 is mounted on the side of the second fixing ring 12 near the pipe fitting. A second piston rod 14 is movably inserted into the end of the second piston tube 13 away from the second fixing ring 12. A second positioning frame 15 is fixedly mounted on the end of the second piston rod 14. A sliding frame 16 is slidably mounted in the second positioning frame 15. A second clamping roller 17 is rotatably mounted on the sliding frame 16. A first connecting pipe connects the first piston tube 8 and the second piston tube 13. (Reference) Figure 5 An elastic rod 19 is fixedly installed between the second positioning frame 15 and the sliding frame 16. Two clamping plates 18 are symmetrically rotated in the second positioning frame 15, and a coil spring is provided at the rotation connection. When the sliding frame 16 moves into the second positioning frame 15, the included angle between the two clamping plates 18 becomes smaller.

[0023] The pipe is inserted from top to bottom from the fixing bracket 4 and is located between the two clamping cams 26. Before the clamping cams 26 are driven to clamp, the pipe needs to be positioned to ensure that the piling point of the clamping cams 26 is accurate.

[0024] Specifically, such as Figure 4 During the insertion of the pipe fitting, the two first clamping rollers 11 are pushed open by its outer wall. When the two first clamping rollers 11 are pushed open, they drive the first piston rod 9 to move into the first piston tube 8. Air in the first piston tube 8 enters into multiple second piston tubes 13 through the first connecting pipe, thereby pushing the second piston rod 14 out of the second piston tube 13 and driving the second positioning frame 15 to move towards the outer wall of the pipe fitting. Thus, the second clamping roller 17 is pressed tightly against the outer wall of the pipe fitting. As the second positioning frame 15 continues to move, the second clamping roller 17 increases the squeezing pressure and slides into the second positioning frame 15. Figure 5 As shown, when the second clamping roller 17 moves into the second positioning frame 15, it pushes the two clamping plates 18 to rotate, and the included angle between the two clamping plates 18 becomes smaller. The clamping operation of the clamping plates 18 is used to reposition the pipe fitting. This completes the initial positioning of the pipe fitting.

[0025] refer to Figure 7 Both the driving rod 5 and the driven rod 6 are fixedly mounted with reinforcing cams 27. Each of the two reinforcing cams 27 is provided with a third piston tube 29 on the side close to each other. Each of the two third piston tubes 29 is movably inserted with a third piston rod 30 at the end far from each other. Each of the two third piston rods 30 is fixedly mounted with a transmission plate 28. The two transmission plates 28 are slidably mounted in correspondence with the two reinforcing cams 27.

[0026] like Figure 7As shown, when the driving rod 5 and the driven rod 6 rotate, the two reinforcing cams 27 also rotate. The reinforcing cams 27 are used to squeeze the transmission plate 28 to move, thereby squeezing the air in the third piston tube 29. A second connecting pipe is connected between the third piston tube 29 and the second piston tube 13. The air in the third piston tube 29 is transported to the second piston tube 13 through the second connecting pipe, thereby further providing the squeezing force at the second piston rod 14 and the second clamping roller 17.

[0027] Example 2: refer to Figure 6 The adjustment assembly is used to align two pipe fittings to a concentric state. It includes a detection component installed above the fixing frame 4 to detect whether the contact ends of the two pipe fittings are aligned, and an adjustment component for adjusting the position of the upper pipe fitting. The detection component includes a third fixing ring 20 fixedly installed above the fixing frame 4. An electric push rod 21 is installed on the side of the third fixing ring 20 near the pipe fitting. A detection frame 22 is fixedly installed on the output shaft of the electric push rod 21. The detection frame 22 is an arc-shaped plate in the shape of a semi-circular ring. Multiple rangefinders 23 are mounted on the inner wall of the side of the detection frame 22 away from the electric push rod 21. The detection component also includes a control box 25 for processing the measurement results of the rangefinders 23. The adjustment component includes a fourth fixing ring 24 installed above the third fixing ring 20. The fourth fixing ring 24 is provided with multiple sets of pushers to push the pipe fitting.

[0028] Pipe driving typically employs a multi-section method, meaning that after driving one pipe section, another is driven on top of it. Before driving the second section, the two sections need to be welded together to ensure alignment. Therefore, a detection element is installed above the fixing frame 4, such as... Figure 6 As shown, the distance to the joint of the two pipe fittings is measured separately using two layers of distance measuring instruments 23. Figure 6 The left half of the diagram shows that the pipes are aligned, so the distances obtained by the rangefinder 23 are basically the same (a threshold can be set, which is the difference between the maximum and minimum distances; if it exceeds the threshold, the upper pipe needs to be replaced or its position adjusted).

[0029] like Figure 8As shown, when the upper pipe fitting port is damaged, the results measured by some distance measuring instruments 23 will differ significantly from those measured by other distance measuring instruments 23. In this case, the construction personnel should be notified to replace them promptly. When the pipe fittings are of the same specification but misaligned, it can be seen that the difference between the measurements of two centrally symmetrical distance measuring instruments 23 is 0. For example, one distance measuring instrument 23 measures a distance of A1, while the distance measured by the distance measuring instrument 23 directly below it is B1. The corresponding distances measured by the two centrally symmetrical distance measuring instruments 23 are A2 and B2, respectively. IA1-B1I=IA2-B2I and (A1-B1)+(A2-B2)=0. Furthermore, the results measured by other distance measuring instruments 23 and their corresponding centrally symmetrical distance measuring instruments also satisfy the above conditions. This indicates that the pipe fitting dimensions and port are correct, but there is a misalignment. In this case, an adjusting device is needed to use multiple pushers to adjust the external position of the pipe fitting, thereby further improving the accuracy of piling.

[0030] A pipe crimping machine employs a pipe locking mechanism.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipe locking mechanism, comprising a mounting bracket (1) and one or more pipe fittings placed above the mounting bracket (1), characterized in that, Also includes: The clamping assembly includes two hydraulic rods (3) symmetrically mounted on a mounting frame (1), and the output ends of the two hydraulic rods (3) are jointly mounted on a fixing frame (4), in which two clamping cams (26) are rotatably mounted. The positioning assembly includes a first clamping roller (11) installed between two hydraulic rods (3), and two sets of second clamping rollers (17) are respectively installed on the upper and lower sides of the fixing frame (4). When the two first clamping rollers (11) are far apart from each other, the two sets of second clamping rollers (17) are close to each other. The adjustment assembly is used to adjust the alignment of the two pipe fittings to a concentric state, including a detection element installed above the fixing frame (4) for detecting whether the contact ends of the two pipe fittings are aligned, and an adjustment element for adjusting the position of the upper pipe fitting.

2. The pipe locking mechanism according to claim 1, characterized in that, Two guide frames (2) are symmetrically fixedly installed on the side wall of the mounting frame (1), and guide holes are provided on both guide frames (2). Two guide tubes are fixedly inserted on the mounting frame (1).

3. The pipe locking mechanism according to claim 2, characterized in that, The fixed frame (4) has a driving rod (5) and a driven rod (6) rotatably inserted on one side. The two clamping cams (26) are fixedly sleeved on the driving rod (5) and the driven rod (6) respectively. The fixed frame (4) is provided with a driving component for driving the driving rod (5) to rotate, and a gear set is provided between the driving rod (5) and the driven rod (6).

4. A pipe locking mechanism according to claim 3, characterized in that, The positioning assembly also includes a first fixing ring (7) fixedly installed on the hydraulic rod (3). A first piston tube (8) is installed on the side of the first fixing ring (7) near the pipe. A first piston rod (9) is movably inserted at the end of the first piston tube (8) away from the first fixing ring (7). A first positioning frame (10) is fixedly installed at the end of the first piston rod (9). The first clamping roller (11) is rotatably installed on the first positioning frame (10).

5. A pipe locking mechanism according to claim 4, characterized in that, The positioning assembly further includes a second fixing ring (12) fixedly installed on the hydraulic rod (3). A second piston tube (13) is installed on the side of the second fixing ring (12) near the pipe. A second piston rod (14) is movably inserted at the end of the second piston tube (13) away from the second fixing ring (12). A second positioning frame (15) is fixedly installed at the end of the second piston rod (14). A sliding frame (16) is slidably installed in the second positioning frame (15). The second clamping roller (17) is rotatably installed on the sliding frame (16). A first connecting pipe is connected between the first piston tube (8) and the second piston tube (13).

6. A pipe locking mechanism according to claim 5, characterized in that, An elastic rod (19) is fixedly installed between the second positioning frame (15) and the sliding frame (16). Two clamping plates (18) are symmetrically rotated in the second positioning frame (15), and a coil spring is provided at the rotation connection. When the sliding frame (16) moves into the second positioning frame (15), the included angle between the two clamping plates (18) becomes smaller.

7. A pipe locking mechanism according to claim 6, characterized in that, Both the driving rod (5) and the driven rod (6) are fixedly mounted with reinforcing cams (27). Each of the two reinforcing cams (27) is provided with a third piston tube (29) on the side close to each other. Each of the two third piston tubes (29) is movably inserted with a third piston rod (30) at the end far from each other. Each of the two third piston rods (30) is fixedly mounted with a transmission plate (28). The two transmission plates (28) are slidably mounted in correspondence with the two reinforcing cams (27).

8. A pipe locking mechanism according to claim 7, characterized in that, The detection component includes a third fixing ring (20) fixedly installed above the fixing frame (4). An electric push rod (21) is installed on the side of the third fixing ring (20) near the pipe. A detection frame (22) is fixedly installed on the output shaft of the electric push rod (21). The detection frame (22) is an arc-shaped plate in the shape of a semi-circular ring. Multiple rangefinders (23) are mounted on the inner wall of the detection frame (22) away from the electric push rod (21). The detection component also includes a control box (25) for processing the measurement results of the rangefinders (23).

9. A pipe locking mechanism according to claim 8, characterized in that, The adjusting component includes a fourth fixing ring (24) installed above the third fixing ring (20), and the fourth fixing ring (24) is provided with multiple sets of pushers to push the pipe fitting.

10. A pipe clamping machine, employing a pipe locking mechanism as described in claim 9.

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