Rotation-preventing limited-position cement mixing pile machine and rotation-preventing method

Abstract

The present invention relates to the technical field of cement mixing pile machines, and specifically to a limited-position cement mixing pile machine for preventing rotation and deflection and a method for preventing rotation and deflection, comprising: a driving member, which is arranged on the lifting platform, and the driving member is provided with a positioning ring capable of inserting the end of a drill rod; a clamping assembly, which connects the lifting platform and the driving member, and the clamping assembly comprises a driving structure and a retracting structure, and the retracting structure is provided with a plurality of groups of arc-shaped members equidistantly arranged on the circumference, and the driving structure cooperates with the retracting structure to drive the plurality of groups of arc-shaped members to move toward the drill rod; a sleeve structure, which is connected to one end of the drill rod away from the arc-shaped member, and the sleeve structure can suppress the vibration generated by the end of the drill rod away from the arc-shaped member, prevent the screw thread of the threaded connection from being damaged, and improve the portability of the installation and disassembly of the drill rod.

Description

Technical Field

[0001] The invention relates to the technical field of cement mixing pile machines, in particular to a rotation-deflection-proof limited-position cement mixing pile machine and a rotation-deflection-proof method. Background Art

[0002] The use of cement mixing pile machines has significant advantages in foundation reinforcement. It can effectively improve the bearing capacity and stability of the foundation. At the same time, it has the characteristics of high construction efficiency, good economy, and strong environmental protection. It is used in various construction projects.

[0003] The cement mixing pile machine is mainly composed of a mobile frame and a drill rod. A lifting platform is provided on the mobile frame. The lifting platform can mix the cement by driving the drill rod down and coordinating with the rotation of the drill rod. During the mixing process, the drill rod will inevitably swing and shake.

[0004] However, most existing drill rods are connected by threads, which can easily cause damage to the threads of important components of the threaded connection during the deflection and vibration of the drill rod, thereby causing great difficulties in the installation and disassembly of the drill rod. In serious cases, the drill rod can only be scrapped. Summary of the invention

[0005] The object of the present invention is to provide a limited-position cement mixing pile machine and a method for preventing rotation and deflection, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a limited-position cement mixing pile machine with anti-rotation and deflection, comprising: a mobile frame, a cantilever is provided on the mobile frame, and a lifting platform that can move along the length direction of the cantilever is provided on the cantilever; a traction device is provided on the mobile frame, and the traction device is connected to the lifting platform through a traction cable; it also includes: a driving member, which is provided on the lifting platform, and a positioning ring is provided on the driving member to enable the end of a drill rod to be inserted; a clamping assembly, connecting the lifting platform and the driving member, the clamping assembly comprising a driving structure and a retracting structure, a plurality of groups of arc-shaped members are equidistantly arranged on the retracting structure at a circumference, and the driving structure cooperates with the retracting structure to drive the plurality of groups of arc-shaped members to move toward the drill rod; a sleeve structure, connected to the end of the drill rod away from the arc-shaped member, and the sleeve structure can suppress the vibration generated by the end of the drill rod away from the arc-shaped member.

[0007] As a further solution of the present invention: the driving member includes a driving motor fixedly mounted on the lifting platform, the output shaft of the driving motor is connected to a rotating shaft, the interior of the rotating shaft is a hollow structure, and the rotating shaft is coaxially arranged with the positioning ring; a plurality of groups of conducting holes are equidistantly arranged on the circumferential side wall of the rotating shaft.

[0008] As a further solution of the present invention: the folding structure includes a connecting frame coaxially arranged with the rotating shaft, a plurality of guide shafts are circumferentially arranged on the connecting frame, a driving plate is slidably mounted on the guiding shaft, and the driving plate is fixedly connected to the arc-shaped member;

[0009] The folding structure also includes a slotted shaft set connecting the driving plate and the rotating shaft, and the slotted shaft set can make the arc-shaped member move toward the drill rod when the connecting frame moves toward the lifting platform.

[0010] As a further solution of the present invention: the groove shaft kit includes a plurality of convex shafts installed on the side of the driving plate and a side plate fixedly installed on the rotating shaft, and the side plate is provided with an inclined groove, and the convex shaft can roll in the inclined groove.

[0011] As a further solution of the present invention: the driving structure includes an electric telescopic rod fixedly connected to the lifting platform, the action end of the electric telescopic rod is connected to a connecting ring, and the annular connecting part arranged on the connecting frame is rotatably sleeved with the connecting ring.

[0012] As a further solution of the present invention: the sleeve structure includes a ring rotatably mounted on the mobile frame, and the ring is slidably sleeved with the drill rod; a stirring head is detachably mounted on the end of the drill rod away from the lifting platform, and a plurality of water delivery holes are formed at the lower end of the stirring head; a limiting block is provided along the length direction of the drill rod, and the limiting block is slidably matched with a limiting groove provided on the sleeve.

[0013] As a further solution of the present invention: it also includes: a centrifugal component, which is installed on the mobile frame, the centrifugal component is connected to a connecting plate, and the centrifugal component can control the height of the connecting plate according to the rotation speed of the drill rod; an annular connecting seat, which is rotatably fitted with the rotating shaft seal, and the water entering the annular connecting seat can enter the drill rod through the conducting hole; an adjusting component, which is arranged on the mobile frame and is connected to the annular connecting seat through a conduit, and the adjusting component is connected to the connecting plate, and when the connecting plate is in motion, the adjusting component can control the amount of water entering the annular connecting seat.

[0014] As a further solution of the present invention: the centrifugal assembly includes a driven shaft rotatably mounted on the moving frame, the driven shaft is connected to the ring through a belt, a rotating plate and a follower sleeve are also provided on the driven shaft, a lag groove is provided on the rotating plate, a lag block is slidably mounted on the lag groove, a pulling rod is rotatably mounted on the lag block, one end of the pulling rod away from the lag block is rotatably connected to the follower sleeve; a cylindrical spring is also sleeved on the driven shaft, one end of the cylindrical spring is connected to the rotating plate, and the other end is connected to the follower sleeve; an annular groove is formed on the follower sleeve, and the annular groove is rotatably sleeved with the connecting plate.

[0015] As a further solution of the present invention: the adjustment assembly includes an adjustment tube fixedly installed on the mobile frame, a fixing part is fixed in the adjustment tube, and a rotating part sealingly fitted with the fixing part is rotatably installed in the adjustment tube, and arc-shaped through grooves are provided on the rotating part and the fixing part; the rotating part is also connected to a connecting shaft coaxial with the rotating part, and a lifting sleeve fixedly connected to the connecting plate is slidably sleeved on the connecting shaft, and a spiral groove is provided on the lifting sleeve, and the spiral groove is slidably matched with a mating shaft provided on the connecting shaft.

[0016] The method for preventing rotation and deflection of a position-limited cement mixing pile machine is applied to the position-limited cement mixing pile machine for preventing rotation and deflection, and comprises the following steps:

[0017] Step 1: Insert the end of the drill pipe into the positioning ring, and insert the other end into the collar;

[0018] Step 2: Control the driving structure to move, drive the folding structure connected thereto to move, so that the multiple groups of arc-shaped members arranged in a circle can move toward the drill rod and clamp the drill rod;

[0019] Step 3: Control the action of the driving part to drive the drill rod to rotate;

[0020] Step 4: Under the action of the sleeve structure, the vibration generated by the end of the drill pipe away from the arc-shaped member is suppressed.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: through the provided driving member, the clamping assembly and the sleeve structure, firstly, under the action of the positioning ring, the drill rod and the rotating shaft can be kept in a coaxial state, thereby preventing the vibration caused by the eccentric movement of the drill rod during the rotation of the drill rod, that is, eliminating the possibility of vibration when the drill rod rotates from the installation level; secondly, multiple groups of arc-shaped members act on the drill rod to embrace the drill rod, so that the drill rod and the rotating shaft can be further kept coaxial while maintaining a higher strength abutment state with the rotating shaft, thereby improving the connection stability between the rotating shaft and the drill rod; subsequently, under the restriction of the sleeve, the drill rod can be rotated to The vibration of the lower end of the drill rod during the rotation process is suppressed. The three aspects are combined to make the drill rod more stable during rotation and eliminate the vibration phenomenon during the rotation of the drill rod as much as possible. Compared with the traditional threaded connection, it is more convenient to install and disassemble the drill rod; by arranging the centrifugal component and the adjusting component, when the rotation speed of the drill rod is changed for soils of different properties, the connecting plate can move under the traction of the centrifugal component, and by driving the adjusting component to move, the amount of water entering and overflowing from the end of the drill rod can be controlled, so that on the one hand, the rotation resistance of the drill rod can be reduced, and on the other hand, the soil can be softened to avoid the vibration phenomenon caused by the drill rod when acting on soils of different hardness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of an embodiment of a position-limited cement mixing pile machine for preventing rotation and deflection;

[0023] Figure 2 for Figure 1 A magnified view of the structure at center A;

[0024] Figure 3 A schematic structural diagram of another angle of an embodiment of a position-limited cement mixing pile machine for preventing rotation and deflection;

[0025] Figure 4 for Figure 3 A magnified view of the structure at B in the middle;

[0026] Figure 5 An exploded view of the structure of a clamping assembly in an embodiment of a limited-position cement mixing pile machine for preventing rotation and deflection;

[0027] Figure 6 An exploded view of the structure of the rotating shaft and the annular connecting seat in one embodiment of a limited cement mixing pile machine for preventing rotation and deflection;

[0028] Figure 7 A schematic diagram of the structure of the sleeve structure in one embodiment of a limited cement mixing pile machine for preventing rotation and deflection;

[0029] Figure 8A schematic diagram of the structure of a centrifugal assembly and an adjusting assembly in an embodiment of a position-limited cement mixing pile machine for preventing rotational deflection;

[0030] Fig. 9 A schematic diagram of the internal structure of an adjustment assembly in an embodiment of a position-limited cement mixing pile machine for preventing rotational deflection;

[0031] Fig.10 An exploded view of the structure of the fixed part and the rotating part in an embodiment of a limited cement mixing pile machine for preventing rotational deflection.

[0032] In the figure: 1, mobile frame; 2, cantilever; 3, lifting platform; 4, traction cable; 5, traction device; 6, driving motor; 7, rotating shaft; 701, conduction hole; 702, positioning ring; 8, annular connecting seat; 9, side plate; 901, inclined groove; 10, electric telescopic rod; 11, connecting ring; 12, connecting frame; 1201, annular connecting part; 13, guide shaft; 14, driving plate; 15, convex shaft; 16, arc-shaped member; 17, drill rod; 1701, limit block; 1702, stirring head ; 1703, water delivery hole; 18, collar; 1801, limit groove; 19, belt; 20, driven shaft; 21, rotating plate; 2101, lag groove; 22, lag block; 23, pulling rod; 24, follower sleeve; 2401, annular groove; 25, cylindrical spring; 26, lifting sleeve; 2601, spiral groove; 27, connecting shaft; 2701, interlocking shaft; 28, rotating part; 29, fixing part; 30, arc-shaped through groove; 31, adjusting tube; 32, conduit; 33, connecting plate. DETAILED DESCRIPTION

[0033] 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.

[0034] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0035] See also Figure 1 to Figure 10In an embodiment of the present invention, a rotation-preventing and deflection-limiting cement mixing pile driver comprises: a mobile frame 1, a traction device 5, a driving member, a clamping assembly and a sleeve structure, wherein the clamping assembly and the sleeve structure can limit the drill rod 17 during the screwing process of the drill rod 17, and can effectively suppress the rotational deflection of the drill rod 17.

[0036] The movable frame 1 is provided with a cantilever 2 , and the cantilever 2 is provided with a lifting platform 3 which can move along the length direction of the cantilever 2 . The traction device 5 is provided on the movable frame 1 , and the traction device 5 is connected to the lifting platform 3 via a traction cable 4 .

[0037] The driving member is arranged on the lifting platform 3, and is provided with a positioning ring 702 for inserting the end of the drill rod 17; the driving member includes a driving motor 6 fixedly mounted on the lifting platform 3, and a rotating shaft 7 is connected to the output shaft of the driving motor 6, the interior of the rotating shaft 7 is a hollow structure, and the rotating shaft 7 is coaxially arranged with the positioning ring 702.

[0038] When in use, by inserting the drill rod 17 into the positioning ring 702, the end of the drill rod 17 can be coaxial with the positioning ring 702, so that the end of the drill rod 17 can be coaxial with the rotating shaft 7, so that when the rotating shaft 7 drives the drill rod 17 to rotate, the drill rod 17 can make a circular motion about its central axis, thereby reducing the generation of vibration, that is, eliminating the possibility of vibration when the drill rod 17 rotates from the installation level of the drill rod 17, thereby improving the stability of the drill rod 17 when rotating.

[0039] See also Figure 2 , Figure 5 The clamping assembly is connected to the lifting platform 3 and the driving member, and the clamping assembly includes a driving structure and a folding structure. A plurality of groups of arc-shaped members 16 are equidistantly arranged on the folding structure at a circumference. The driving structure cooperates with the folding structure to drive the plurality of groups of arc-shaped members 16 to move toward the drill rod 17; the folding structure includes a connecting frame 12 coaxially arranged with the rotating shaft 7, and a plurality of groups of guide shafts 13 are circumferentially arranged on the connecting frame 12. A driving plate 14 is slidably mounted on the guide shaft 13, and the driving plate 14 is fixedly connected to the arc-shaped member 16. In order to improve the tightness of the connection between the arc-shaped member 16 and the drill rod 17 when the two are fitted, a strip protrusion can be provided on the inner side of the arc-shaped member 16 to increase the connection strength between the arc-shaped member 16 and the drill rod 17 when the arc-shaped member 16 is embraced.

[0040] The folding structure also includes a slotted shaft kit connecting the driving plate 14 and the rotating shaft 7, and the slotted shaft kit can make the arc-shaped member 16 move toward the drill rod 17 when the connecting frame 12 moves toward the lifting platform 3; the slotted shaft kit includes a plurality of groups of convex shafts 15 installed on the side of the driving plate 14 and a side plate 9 fixedly installed on the rotating shaft 7, and the side plate 9 is provided with an inclined groove 901, and the convex shaft 15 can roll in the inclined groove 901.

[0041] In the initial state, the connecting frame 12 can be at the lower end of the stroke driven by the driving structure. At this time, the convex shaft 15 is at the lower end of the inclined groove 901, and the driving plate 14 can drive the arc member 16 to be in a state away from the rotation center of the rotating shaft 7. At this time, there is a larger gap between the arc member 16 and the rotation center of the rotating shaft 7, so that it is convenient to insert the drill rod 17 into the positioning ring 702, and when the drill rod 17 is inserted into the positioning ring 702, the driving structure can drive the connecting frame 12 to move upward. At this time, the guide shaft 13 drives the driving plate 14 to move upward, and the convex shaft 15 can move along the inclined groove 901, and at the same time, the driving plate 14 can drive the arc member 16 to move toward the drill rod 17 and toward the lifting platform 3 at the same time, and can drive the drill rod 17 to produce a certain upward movement when the arc member 16 abuts against the drill rod 17, so as to achieve the purpose of clamping the drill rod 17 while increasing the force of the coaxial abutment between the drill rod 17 and the rotating shaft 7, thereby further ensuring the coaxiality between the drill rod 17 and the rotating shaft 7.

[0042] The driving structure includes an electric telescopic rod 10 fixedly connected to the lifting platform 3 , a connecting ring 11 is connected to the action end of the electric telescopic rod 10 , and an annular connecting portion 1201 arranged on the connecting frame 12 is rotatably sleeved with the connecting ring 11 .

[0043] When in use, since the rotating shaft 7 is in a rotating state, the drill rod 17, the arc-shaped member 16 and the connecting frame 12 connected thereto will all be in a rotating state. Through the connection between the connecting ring 11 and the annular connecting portion 1201, the connecting frame 12 can be pulled up and have an upward pulling force when rotating, thereby ensuring that when the rotating shaft 7 rotates, the arc-shaped member 16 can maintain the clamping force on the drill rod 17, thereby improving the stability of the drill rod 17 during the rotation process.

[0044] See also Figure 7The sleeve structure connects the end of the drill rod 17 away from the arc-shaped member 16, and the sleeve structure can suppress the vibration generated by the end of the drill rod 17 away from the arc-shaped member 16. The sleeve structure includes a collar 18 rotatably mounted on the mobile frame 1, and the collar 18 is slidably sleeved with the drill rod 17; a stirring head 1702 is detachably mounted on the end of the drill rod 17 away from the lifting platform 3, and a plurality of water delivery holes 1703 are formed at the lower end of the stirring head 1702; a limit block 1701 is provided along the length direction of the drill rod 17, and the limit block 1701 is slidably matched with a limit groove 1801 provided on the collar 18.

[0045] When in use, it is necessary to first remove the stirring head 1702 at the end of the drill rod 17, then insert the drill rod 17 into the collar 18, and then install the stirring head 1702 back to its original position, and connect the upper end of the drill rod 17 to the arc-shaped member 16. At this time, when the drill rod 17 rotates with the rotating shaft 7, when the lower part of the drill rod 17 vibrates, the limit of the collar 18 can be used to suppress the vibration of the drill rod 17, thereby making the drill rod 17 more stable during rotation.

[0046] To sum up, firstly, under the action of the positioning ring 702, the drill rod 17 and the rotating shaft 7 can be kept coaxial, thereby preventing the vibration caused by the eccentric movement of the drill rod 17 during the rotation of the drill rod 17, that is, eliminating the possibility of vibration when the drill rod 17 rotates from the installation level; secondly, the multiple groups of arc-shaped members 16 act on the drill rod 17 to embrace the drill rod 17, so that the drill rod 17 and the rotating shaft 7 can be further kept coaxial while maintaining a higher strength abutment state with the rotating shaft 7, thereby improving the connection stability between the rotating shaft 7 and the drill rod 17; then, under the restriction of the collar 18, the vibration of the lower end of the drill rod 17 during the rotation process can be suppressed; the combination of these three aspects makes the drill rod 17 more stable during rotation, and eliminates the vibration phenomenon during the rotation of the drill rod 17 as much as possible, which is more convenient for installation and disassembly of the drill rod 17 than the traditional threaded connection.

[0047] See also Figure 4 , Figure 8~Figure 9 The anti-rotation and anti-swaying limited cement mixing pile machine also includes: a centrifugal component, an annular connecting seat 8 and an adjusting component.

[0048] The centrifugal assembly is mounted on the mobile frame 1, and is connected to a connecting plate 33. The centrifugal assembly can control the height of the connecting plate 33 according to the rotation speed of the drill rod 17. The centrifugal assembly includes a driven shaft 20 rotatably mounted on the mobile frame 1, and the driven shaft 20 is connected to the sleeve 18 through a belt 19. The driven shaft 20 is also provided with a rotating plate 21 and a follower sleeve 24. The rotating plate 21 is provided with a retardation groove 2101, and the retardation groove 21 01 is slidably mounted with a delay block 22, and a pulling rod 23 is rotatably mounted on the delay block 22, and one end of the pulling rod 23 away from the delay block 22 is rotatably connected to the follower sleeve 24; a cylindrical spring 25 is also sleeved on the driven shaft 20, one end of the cylindrical spring 25 is connected to the rotating plate 21, and the other end is connected to the follower sleeve 24; an annular groove 2401 is formed on the follower sleeve 24, and the annular groove 2401 is rotatably fitted with the connecting plate 33.

[0049] During use, taking into account different soil properties, the rotation speed of the drill rod 17 is different. At this time, when the drill rod 17 moves downward, the resistance it encounters will also increase as the rotation speed increases. In the present embodiment, when the rotation speed of the drill rod 17 increases, the rotation speed of the collar 18 will also increase. At this time, the rotation speed of the driven shaft 20 increases, and the speed of the rotating plate 21 in circular motion is accelerated. During this process, the hysteresis block 22 will perform circular motion and generate centrifugal force. Under the action of the centrifugal force, the hysteresis block 22 will move away from the driven shaft 20 and pull the follower sleeve 24 downward through the pulling rod 23. While compressing the cylindrical spring 25, the connecting plate 33 moves downward, thereby driving the adjustment component to increase the amount of water transported into the drill rod 17 to reduce the resistance of the drill rod 17 at high rotation speed.

[0050] Furthermore, by conveying water into the drill rod 17, the water can overflow through the water delivery hole 1703. At this time, the water can reduce the rotational resistance of the drill rod 17 on the one hand, and soften the soil on the other hand, thereby avoiding the vibration phenomenon caused by the drill rod 17 when acting on soils of different hardness.

[0051] See also Figure 2 , Figure 6The annular connecting seat 8 is sealed and rotatably sleeved with the rotating shaft 7, and a plurality of groups of conducting holes 701 are circumferentially and equidistantly arranged on the circumferential side wall of the rotating shaft 7, and the water entering the annular connecting seat 8 can enter the drill rod 17 through the conducting holes 701; the adjusting component is arranged on the mobile frame 1 and is connected with the annular connecting seat 8 through a conduit 32, and the adjusting component is connected with the connecting plate 33, and when the connecting plate 33 is actuated, the adjusting component can control the amount of water entering the annular connecting seat 8, and the adjusting component includes an adjusting tube 31 fixedly mounted on the mobile frame 1, a fixing member 29 is fixed in the adjusting tube 31, and a rotating member 28 sealingly fitted with the fixing member 29 is rotatably installed in the adjusting tube 31, and both the rotating member 28 and the fixing member 29 are provided with The arc-shaped through groove 30, specifically, the regulating tube 31 is provided with a liquid inlet and a liquid outlet, the liquid inlet is communicated with an external water supply device (not shown in the figure), and the liquid outlet is communicated with the conduit 32. The external water supply device pumps water into the regulating tube 31 from the liquid inlet, and then the water passes through the overlapping arc-shaped through grooves 30 on the fixed member 29 and the rotating member 28 and enters the annular connecting seat 8 from the conduit 32, and finally enters the drill rod 17 from the conducting hole 701 and overflows from the water delivery hole 1703; the rotating member 28 is also connected to a connecting shaft 27 coaxial therewith, and a lifting sleeve 26 fixedly connected to the connecting plate 33 is slidably sleeved on the connecting shaft 27, and a spiral groove 2601 is provided on the lifting sleeve 26, and the spiral groove 2601 is slidably matched with a fitting shaft 2701 provided on the connecting shaft 27.

[0052] In the initial state, the arcuate grooves 30 on the fixed member 29 and the rotating member 28 are in a dislocated state, and when the connecting plate 33 moves downward, it can drive the lifting sleeve 26 connected thereto to move. At this time, with the cooperation of the spiral groove 2601 and the interlocking shaft 2701, the connecting shaft 27 can rotate, so that the arcuate grooves 30 on the fixed member 29 and the rotating member 28 can gradually overlap, so that the water entering the regulating pipe 31 enters the drill pipe 17 through the overlapping area of ​​the arcuate grooves 30, thereby realizing the control of the water volume.

[0053] When the rotation speed of the drill rod 17 changes, the descending amount of the connecting plate 33 will also change accordingly. At this time, the overlap degree of the arc-shaped through grooves 30 on the fixed member 29 and the rotating member 28 also changes. Specifically, when the rotation speed of the drill rod 17 increases, the overlap degree of the arc-shaped through grooves 30 on the fixed member 29 and the rotating member 28 increases, so that a larger amount of water can be transported toward the end of the drill rod 17 to ensure that the soil can be fully softened, thereby achieving the dual effects of reducing resistance and suppressing vibration.

[0054] It should be noted that when constructing a specific area, it is necessary to detect the soil properties at different depths in the specific area, and organize the data after the detection. The control system controls the automatic change of the rotation speed of the drive motor 6 according to the organized data, so that the rotation speed of the drill rod 17 is automatically adjusted. When the rotation speed of the drill rod 17 changes, the connecting plate 33 can move under the traction of the centrifugal component, and control the amount of water entering and overflowing the end of the drill rod 17 by driving the adjustment component to move, so that on the one hand, the rotational resistance of the drill rod 17 can be reduced, and on the other hand, the soil can be softened to avoid the vibration phenomenon caused by the drill rod 17 when acting on soils of different hardness.

[0055] In this embodiment, the rotation speed of the drill rod 17 is controlled by the drive motor 6. For soils of different properties, the drive motor 6 drives the rotation speed of the drill rod 17 to change. The change in the rotation speed of the drill rod 17 will adaptively adjust the water supply. There is no need to control the amount of water supply (including but not limited to the size of the valve opening and the size of the water supply pressure) according to the rotation speed of the drill rod 17. The water supply can be accurately controlled in real time according to the change in the rotation speed of the drill rod 17, that is, when the rotation speed of the drill rod 17 changes, the corresponding water supply flow is adjusted. The above-mentioned control system only needs to control the drive motor 6, and there is no need to configure other control units to control the water volume, and the logical control is simple.

[0056] Based on the construction environment, the present invention controls the change in the size of the water flow by adjusting the drill rod 17 speed in real time in conjunction with mechanical adjustment when the drill rod 17 speed changes, which can effectively eliminate the impact of environmental factors on the control module to a certain extent.

[0057] In this embodiment, the rotation speed change of the drill rod 17 and the water volume adjustment are linked and controlled, so that when the rotation speed of the drill rod 17 changes, the water volume adjustment is synchronized and changes in a non-delayed state, which can effectively prevent the drill rod 17 from vibrating significantly when it contacts soils of different hardnesses due to untimely water volume adjustment. When the rotation speed of the drill rod 17 changes, there is a process of deceleration or acceleration from speed A to speed B. In the present invention, the water volume can be adaptively adjusted during the process of deceleration or acceleration of the drill rod 17, which can eliminate the control difference or response difference of the two control units controlling the rotation speed of the drill rod 17 and the water flow size respectively to a certain extent.

[0058] As an embodiment of the present invention, a method for preventing rotation and deflection of a position-limited cement mixing pile machine is also proposed, which is applied to the position-limited cement mixing pile machine for preventing rotation and deflection, and comprises the following steps:

[0059] Step 1: Insert the end of the drill rod 17 into the positioning ring 702, and insert the other end into the collar 18;

[0060] Step 2: Control the driving structure to move, drive the folding structure connected thereto to move, so that the plurality of groups of arc-shaped members 16 arranged in a circle can move toward the drill rod 17 and clamp the drill rod 17;

[0061] Step 3: Control the driving member to drive the drill rod 17 to rotate;

[0062] Step 4: Under the action of the sleeve structure, the vibration generated by the end of the drill rod 17 away from the arc-shaped member 16 is suppressed.

[0063] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A limited-position cement mixing pile machine for preventing rotation and deflection, comprising: A mobile frame (1), wherein a cantilever (2) is arranged on the mobile frame (1), and a lifting platform (3) capable of moving along the length direction of the cantilever (2) is arranged on the cantilever (2); a traction device (5) arranged on the mobile frame (1), and the traction device (5) is connected to the lifting platform (3) via a traction cable (4); the device is characterized in that it also includes: a driving member arranged on the lifting platform (3), and the driving member is provided with a positioning ring (702) capable of inserting the end of a drill rod (17); a clamping assembly connecting the lifting platform (3) and the driving member, and the clamping assembly includes a driving structure and a retracting structure, and the retracting structure is provided with a plurality of groups of arc-shaped members (16) at equal intervals on a circle, and the driving structure cooperates with the retracting structure to drive the plurality of groups of arc-shaped members (16) to move toward the drill rod (17); and a sleeve structure connected to an end of the drill rod (17) away from the arc-shaped member (16), and the sleeve structure can inhibit the drill rod (17) from moving away from the arc-shaped member (16). The driving member comprises a driving motor (6) fixedly mounted on the lifting platform (3); the output shaft of the driving motor (6) is connected to a rotating shaft (7); the interior of the rotating shaft (7) is a hollow structure, and the rotating shaft (7) is coaxially arranged with the positioning ring (702); a plurality of groups of conducting holes (701) are equidistantly arranged on the circumferential side wall of the rotating shaft (7); the folding structure comprises a A connecting frame (12), wherein a plurality of guide shafts (13) are circumferentially arranged on the connecting frame (12), a driving plate (14) is slidably mounted on the guiding shaft (13), and the driving plate (14) is fixedly connected to the arc-shaped member (16); the folding structure further comprises a slotted shaft kit connecting the driving plate (14) and the rotating shaft (7), and the slotted shaft kit can move the arc-shaped member (16) toward the drill rod (17) when the connecting frame (12) moves toward the lifting platform (3).

2. The anti-rotation and deflection limited cement mixing pile machine according to claim 1, characterized in that: The grooved shaft kit comprises a plurality of groups of convex shafts (15) mounted on the side of the driving plate (14) and a side plate (9) fixedly mounted on the rotating shaft (7), wherein the side plate (9) is provided with an inclined groove (901), and the convex shaft (15) is capable of rolling in the inclined groove (901).

3. The anti-rotation and deflection limiting cement mixing pile machine according to claim 1, characterized in that: The driving structure comprises an electric telescopic rod (10) fixedly connected to the lifting platform (3); a connecting ring (11) is connected to the action end of the electric telescopic rod (10); and an annular connecting portion (1201) provided on the connecting frame (12) is rotatably sleeved with the connecting ring (11).

4. The anti-rotation and deflection limiting cement mixing pile machine according to claim 1, characterized in that: The sleeve structure comprises a collar (18) rotatably mounted on the mobile frame (1), the collar (18) being slidably sleeved with the drill rod (17); a stirring head (1702) is detachably mounted on one end of the drill rod (17) away from the lifting platform (3), and a plurality of groups of water delivery holes (1703) are formed at the lower end of the stirring head (1702); a limit block (1701) is provided along the length direction of the drill rod (17), and the limit block (1701) is slidably fitted with a limit groove (1801) provided on the collar (18).

5. The anti-rotation and deflection limiting cement mixing pile machine according to claim 4, characterized in that: Also includes: A centrifugal assembly is mounted on the mobile frame (1), the centrifugal assembly is connected to a connecting plate (33), and the centrifugal assembly can control the height of the connecting plate (33) according to the rotation speed of the drill rod (17); an annular connecting seat (8) is sealingly and rotatably sleeved with the rotating shaft (7), and water entering the annular connecting seat (8) can enter the drill rod (17) through the guide hole (701); an adjusting assembly is arranged on the mobile frame (1) and is connected to the annular connecting seat (8) through a conduit (32), and the adjusting assembly is connected to the connecting plate (33), and when the connecting plate (33) is in motion, the adjusting assembly can control the amount of water entering the annular connecting seat (8).

6. The anti-rotation and deflection limiting cement mixing pile machine according to claim 5, characterized in that: The centrifugal assembly comprises a driven shaft (20) rotatably mounted on the moving frame (1), the driven shaft (20) being connected to the collar (18) via a belt (19), the driven shaft (20) being further provided with a rotating plate (21) and a follower sleeve (24), the rotating plate (21) being provided with a retardation groove (2101), a retardation block (22) being slidably mounted on the retardation groove (2101), and a pulling rod (22) being rotatably mounted on the retardation block (22). 3), one end of the pulling rod (23) away from the delay block (22) is rotatably connected to the follower sleeve (24); a columnar spring (25) is also sleeved on the driven shaft (20), one end of the columnar spring (25) is connected to the rotating plate (21), and the other end is connected to the follower sleeve (24); an annular groove (2401) is formed on the follower sleeve (24), and the annular groove (2401) is rotatably sleeved with the connecting plate (33).

7. The anti-rotation and deflection limiting cement mixing pile machine according to claim 5, characterized in that: The adjustment assembly comprises an adjustment tube (31) fixedly mounted on the moving frame (1), a fixing member (29) being fixed in the adjustment tube (31), and a rotating member (28) sealingly fitted with the fixing member (29) being rotatably mounted in the adjustment tube (31), and an arc-shaped through groove (30) being provided on both the rotating member (28) and the fixing member (29); the rotating member (28) and the fixing member (29) are also connected to a connecting shaft (27) coaxial therewith, a lifting sleeve (26) fixedly connected to the connecting plate (33) being slidably sleeved on the connecting shaft (27), and a spiral groove (2601) being provided on the lifting sleeve (26), and the spiral groove (2601) being slidably fitted with a mating shaft (2701) provided on the connecting shaft (27).

8. A method for preventing rotation and deflection of a limited cement mixing pile machine, characterized in that: The anti-rotation and deflection limiting cement mixing pile machine used in any one of claims 4 to 7 comprises the following steps: Step 1: insert the end of the drill rod (17) into the positioning ring (702), and insert the other end of the drill rod (17) into the collar (18); Step 2: Controlling the driving structure to move, driving the folding structure connected thereto to move, so that the plurality of groups of arc-shaped members (16) arranged in a circle can move toward the drill rod (17) and clamp the drill rod (17); Step 3: Control the driving member to drive the drill rod (17) to rotate; Step 4: Under the action of the sleeve structure, the vibration generated by the end of the drill rod (17) away from the arc-shaped member (16) is suppressed.

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