Composite cutter head mechanism of pile hole drilling machine

Abstract

The utility model discloses a composite cutterhead mechanism of a pile hole drilling machine, which comprises a cutterhead, a plurality of fixed cutter mechanisms and a plurality of movable cutter mechanisms, the fixed cutter mechanisms are fixedly connected with one side of the cutterhead, the side part of the cutterhead is provided with a groove, the movable cutter mechanisms are fixedly connected with one side of the cutterhead, and the fixed cutter mechanisms are fixedly connected with the other side of the cutterhead. And the multiple movable cutter mechanisms are arranged on the multiple grooves in a one-to-one correspondence mode, and the movable cutter mechanisms can move in the direction away from the axis in the cutter disc along the grooves where the movable cutter mechanisms are located. The movable cutter mechanism can be applied to a pile drilling machine, the fixed cutter mechanism can rotate along with rotation of the cutter head to effectively excavate a rock stratum during pile drilling and rotation of the cutter head, and the distance between the movable cutter mechanism and the axis of the cutter head can be adjusted by driving the movable cutter mechanism to move. And the movable cutter mechanism can rotate along with the rotation of the cutter head, so that the movable cutter mechanism can excavate the inner wall of a pile hole to realize reaming, and the efficiency of the pile hole is improved.

Description

Technical Field

[0001] This utility model relates to the field of piling machine mechanism design, and in particular to a composite cutterhead mechanism for a piling machine. Background Technology

[0002] A pile driving machine is a mechanical device used for driving pile holes in the foundation of high-rise buildings. Nowadays, many pile driving machines use a cutter head as the driving actuating component. A rotary power device can drive the cutter head to rotate, and a propulsion power device can drive the cutter head forward to effectively realize the pile driving action.

[0003] However, existing piling machine cutter heads typically have only one type of cutter, usually located at the front. This means that during the piling process, the cutter head can only dig downwards and cannot simultaneously dig the sidewalls of the hole. This leads to an interference or over-fit between the cutter head and the hole it is working with, increasing the difficulty of the cutter head's advance and reducing its digging efficiency. Furthermore, when the cutter head deviates slightly due to uneven force during the piling process, it is easily obstructed by the sidewalls of the hole, further reducing the digging efficiency. In severe cases, the cutter head may even be unable to advance effectively. Utility Model Content

[0004] The purpose of this utility model is to provide a composite cutterhead mechanism for a piling machine, which can solve one or more of the above-mentioned problems.

[0005] According to one aspect of this utility model, a composite cutterhead mechanism for a piling machine is provided, comprising a cutterhead, a fixed cutter mechanism, and a movable cutter mechanism. The fixed cutter mechanism comprises several units, each fixedly connected to one side of the cutterhead.

[0006] The side of the cutter head is provided with a groove, and there are multiple movable cutter mechanisms. Each of the multiple movable cutter mechanisms is respectively provided on a multiple groove, and the movable cutter mechanism can move along the groove in a direction away from the central axis of the cutter head.

[0007] The beneficial effects of this utility model are as follows: This utility model can be applied to pile driving machines. During pile driving, when the cutter head rotates, its fixed cutter mechanism can rotate with the cutter head to effectively excavate the rock strata. It can also adjust the distance between the movable cutter mechanism and the central axis of the cutter head by driving the movable cutter mechanism to move. The movable cutter mechanism also rotates with the cutter head, thus excavating the inner wall of the pile hole to enlarge the hole and improve the efficiency of pile driving. Furthermore, the common arrangement of multiple movable cutter mechanisms, through contact with the inner wall of the pile hole, maintains the accuracy of the cutter head's forward direction, improving the accuracy of the pile driving. In addition, the cutter head is provided with grooves, which can limit and guide the movement of the movable cutter mechanism, reducing the unexpected outward movement and deviation during the movement of the movable cutter head.

[0008] In some embodiments, the fixed cutter mechanism includes a first roller cutter mechanism, which includes a first roller cutter, a first core block, and a first cutter holder. The first core block is connected to the first roller cutter, and the first roller cutter is rotatable relative to the first core block. The first cutter holder is connected to the first core block and to the cutter head. Thus, the first roller cutter can rotate on the first cutter holder to perform the digging action.

[0009] In some embodiments, the first cutter holder has a first recess, the first hob is rotatably mounted on the first recess, and the first recess has a first through hole on its side, with the first core block embedded in the first through hole. The first recess can limit the position of the first hob, reducing unexpected deviations during digging, while the first through hole allows sufficient space for the installation of the first core block and increases the contact area with the first core block, thereby improving the connection reliability between the first cutter holder and the first core block.

[0010] In some embodiments, the movable cutter mechanism includes a second hobbing mechanism, a swing seat, a shaft, and a hydraulic cylinder. The second hobbing mechanism is connected to the swing seat, which is rotatably mounted on the shaft. The swing seat is also connected to the hydraulic cylinder. Thus, the hydraulic cylinder can drive the swing seat to swing on the shaft, thereby effectively adjusting the position of the second hobbing mechanism.

[0011] In some embodiments, the second cutter mechanism includes a second cutter, a second core block, and a second cutter holder. The second core block is connected to the second cutter, and the second cutter is rotatable relative to the second core block. The second cutter holder is connected to the second core block and to a swing seat. Thus, the second cutter can rotate on the second cutter holder to perform the digging action.

[0012] In some embodiments, the second cutter holder has a second recess, on which the second cutter is rotatably mounted. A second through hole is provided on the side of the second recess, and the second core block is embedded within the second through hole. The second recess can limit the position of the second cutter, reducing unexpected deviations during digging. The second through hole allows sufficient space for the installation of the second core block and increases the contact area with the second core block, thereby improving the connection reliability between the second cutter holder and the second core block.

[0013] In some embodiments, there are multiple second hobbing mechanisms, and the sides of the second cutter holders of the multiple second hobbing mechanisms are connected sequentially. Thus, the multiple second hobbing mechanisms can be arranged side-by-side, allowing for better integrated movement.

[0014] In some embodiments, multiple grooves are evenly distributed on the side of the cutter head. This allows each movable cutter mechanism to be evenly arranged around the periphery of the cutter head, resulting in better stress stability during hole enlargement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the composite cutterhead mechanism of a pile driving machine according to one embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the fixed blade mechanism of the composite cutter head mechanism of a piling machine according to one embodiment of the present invention.

[0017] Figure 3 This is a front view of the movable cutter mechanism of the composite cutterhead mechanism of a piling machine according to one embodiment of the present invention.

[0018] Figure 4 This is a cross-sectional view of the movable cutter mechanism of the composite cutterhead mechanism of a piling machine according to one embodiment of the present invention.

[0019] In the figure: 1. Cutter head, 2. Fixed cutter mechanism, 3. Movable cutter mechanism, 11. Groove, 21. First hob, 22. First core block, 23. First cutter holder, 231. First recess, 232. First through hole, 31. Second hob mechanism, 32. Swing seat, 33. Shaft, 34. Hydraulic cylinder, 311. Second hob, 312. Second core block, 313. Second cutter holder, 3131. Second recess, 3132. Second through hole. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] refer to Figures 1-4 The present invention relates to a composite cutter head mechanism for a piling hole machine, comprising a cutter head 1, a fixed cutter mechanism 2, and a movable cutter mechanism 3.

[0022] There are several fixed blade mechanisms 2. In this embodiment, twelve fixed blade mechanisms 2 are preferred.

[0023] In each fixed cutter mechanism 2, the fixed cutter mechanism 2 includes a first rolling cutter mechanism, which includes a first rolling cutter 21, a first core block 22 and a first cutter holder 23. Preferably, there are two first core blocks 22, which are respectively fixedly connected to the two sides of the center of the first rolling cutter 21 by screws. The first rolling cutter 21 can rotate relative to the first core block 22.

[0024] The first tool holder 23 is provided with a first recess 231, the first hobbing cutter 21 is rotatably disposed on the first recess 231, and the side of the first recess 231 is provided with a first through hole 232, the first core block 22 is embedded in the first through hole 232, and the first core block 22 is fixedly connected to the first tool holder 23 by screws.

[0025] The first tool holder 23 in all fixed tool mechanisms 2 is fixedly connected to one side of the tool disc 1 by screws.

[0026] There can be multiple movable blade mechanisms 3. In this embodiment, four movable blade mechanisms 3 are preferred.

[0027] Each movable cutter mechanism 3 includes a second hobbing mechanism 31, a swing seat 32, a shaft 33, and a hydraulic cylinder 34. In addition, there can be multiple second hobbing mechanisms 31 in each movable cutter mechanism 3.

[0028] Each second hobbing mechanism 31 includes a second hobbing cutter 311, a second core block 312, and a second cutter holder 313. There can be two second core blocks 312, each fixedly connected to the center of one side of the second hobbing cutter 311 by screws. The connected second hobbing cutter 311 can rotate relative to the second core blocks 312. The second cutter holder 313 has a second recess 3131, on which the second hobbing cutter 311 is rotatably mounted. The side of the second recess 3131 has a second through hole 3132, in which the second core block 312 is embedded. The second core block 312 is fixedly connected to the second cutter holder 313 by screws.

[0029] The second cutter holder 313 on the second hobbing mechanism 31 is fixedly connected to the swing seat 32 by screws. The swing seat 32 is rotatably sleeved on the shaft 33. The piston rod of the oil cylinder 34 is hinged to the swing seat 32, so that the oil cylinder 34 can drive the swing seat 32 to rotate around the shaft 33.

[0030] In addition, there can be multiple second roller cutter mechanisms 31, and the sides of the second cutter holders 313 of some second roller cutter mechanisms 31 are sequentially fixedly connected by screws, so that multiple connected second roller cutter mechanisms 31 can be arranged side by side, and these second roller cutter mechanisms 31 have stronger integration when moving, and some second roller cutter mechanisms 31 can be extended to the cutter head 1 to assist the digging work of the fixed cutter mechanism 2.

[0031] The side of the cutter head 1 is also provided with grooves 11. The number of grooves 11 is comparable to the number of movable cutter mechanisms 3. In this embodiment, the number of grooves 11 is preferably four, and the four grooves 11 are evenly distributed on the side of the cutter head 1.

[0032] The four movable tool mechanisms 3 are respectively provided on the four grooves 11. Specifically, the swing seats 32 on the four movable tool mechanisms 3 pass through the four grooves 11 respectively, and under the drive of the oil cylinder 34, the swing seats 32 can move along the groove 11 where they are located in a direction away from the central axis of the tool disc 1.

[0033] The composite cutterhead mechanism of this utility model can be applied to a pile driving machine. The cutterhead 1 and the movable cutter mechanism 3 can be connected to the digging rotating shaft of the pile driving machine, and the shaft 33 can be fixedly installed on the rotating shaft, while the cylinder body of the hydraulic cylinder 34 can be hinged to the rotating shaft.

[0034] When driving a pile hole, the rotating shaft can drive the cutter head 1 to rotate, and the fixed cutter mechanism 2 set on the cutter head 1 can rotate accordingly. The first roller cutter 21 on the fixed cutter mechanism 2 can come into contact with the rock layer, and as the fixed cutter mechanism 2 rotates, the first roller cutter 21 on it can roll on the rock layer to excavate the rock layer, so as to effectively obtain the pile hole.

[0035] When needed, it can also drive each hydraulic cylinder 34 to work. Each hydraulic cylinder 34 can correspondingly drive the swing seat 32 connected to it to swing along the groove 11, so that the second roller cutter 311 on the swing seat 32 can abut against the inner wall of the pile hole. The movable cutter mechanism 3 can also rotate with the rotation of the rotating shaft of the pile driving machine. Then the second roller cutter 311 can abut against the inner wall of the pile hole, and with the rotation of the movable cutter mechanism 3, the second roller cutter 311 can roll on the inner wall of the pile hole to realize hole enlargement.

[0036] Furthermore, users can adjust the swing amplitude of the swing seat 32 by adjusting the extension amplitude of the piston rod of the hydraulic cylinder 34, thereby adjusting the position of the second hob 311 and controlling the size of the enlarged hole to adapt to different construction needs.

[0037] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A composite cutterhead mechanism for a piling machine, characterized in that, It includes a cutter head, a fixed cutter mechanism, and a movable cutter mechanism. There are several fixed cutter mechanisms, each fixedly connected to one side of the cutter head. The side of the cutter head is provided with a groove, and there are multiple movable cutter mechanisms. Each of the multiple movable cutter mechanisms is respectively provided on a multiple groove, and the movable cutter mechanism can move along the groove in a direction away from the central axis of the cutter head.

2. The composite cutterhead mechanism of the piling machine according to claim 1, characterized in that, The fixed cutter mechanism includes a first rolling cutter mechanism, which includes a first rolling cutter, a first core block, and a first cutter holder. The first core block is connected to the first rolling cutter, and the first rolling cutter can rotate relative to the first core block. The first cutter holder is connected to the first core block and to the cutter disc.

3. The composite cutterhead mechanism of the piling machine according to claim 2, characterized in that, The first tool holder has a first recess, the first hob is rotatably disposed on the first recess, the side of the first recess has a first through hole, and the first core block is embedded in the first through hole.

4. The composite cutterhead mechanism of the piling machine according to claim 1, characterized in that, The movable cutter mechanism includes a second hobbing mechanism, a swing seat, a shaft, and a hydraulic cylinder. The second hobbing mechanism is connected to the swing seat, which is rotatably mounted on the shaft. The swing seat is also connected to the hydraulic cylinder.

5. The composite cutterhead mechanism of the piling machine according to claim 4, characterized in that, The second hobbing mechanism includes a second hob, a second core block, and a second cutter holder. The second core block is connected to the second hob, and the second hob can rotate relative to the second core block. The second cutter holder is connected to the second core block and is connected to a swing seat.

6. The composite cutterhead mechanism of the piling machine according to claim 5, characterized in that, The second cutter holder has a second recess, the second hob is rotatably disposed on the second recess, the side of the second recess has a second through hole, and the second core block is embedded in the second through hole.

7. The composite cutterhead mechanism of the piling machine according to claim 5, characterized in that, There are multiple second hobbing mechanisms, and the sides of the second cutter holders of the multiple second hobbing mechanisms are connected in sequence.

8. The composite cutterhead mechanism of the piling machine according to claim 1, characterized in that, Multiple grooves are evenly distributed on the side of the cutter head.

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