CN116591162A - Cutter head assembly and pile driver - Google Patents

Abstract

The application provides a cutter head assembly and a pile driver, wherein the cutter head assembly comprises: the cutter head comprises a cutter head body, a rotary driving device and a locking power device, wherein the cutter head is arranged on a first side of the cutter head body along a first direction, a plurality of first wedge blocks are arranged on a second side of the cutter head body, and the first wedge blocks comprise first inclined surfaces; the rotary driving device comprises a plurality of second wedges, the second wedges comprise second inclined surfaces, and the second inclined surfaces are matched with the first inclined surfaces; the two ends of the locking power device are respectively connected with the first wedge block and the second wedge block, and the locking power device can move along the first direction so that the first inclined surface of the first wedge block and the second inclined surface of the second wedge block are mutually abutted or separated. The application can realize the quick assembly and disassembly of the rotary driving device and the cutterhead under the condition of low clearance, thereby being beneficial to improving the construction efficiency and reducing the cost.

Description

Cutter head assembly and pile driver

Technical Field

The application relates to the field of pile foundation construction equipment, in particular to a cutter head assembly and a pile driver.

Background

At present, pile foundation construction is mainly performed by using equipment such as a pile driver, and the pile driver often needs a larger vertical construction space during construction. The cutter head assembly is one of main parts on the pile driver, in the related art, a rotary driving device in the cutter head assembly is axially connected with the cutter head and is mainly locked by virtue of bolts, so that the rotary driving device and the cutter head are more troublesome to install and detach, and the requirements on sites are higher.

Disclosure of Invention

In order to overcome the defects in the related art, the application aims to provide a cutter head assembly and a pile driver, which can realize the quick assembly and disassembly of a rotary driving device and a cutter head under the condition of low clearance, thereby being beneficial to improving the construction efficiency and reducing the cost.

In one aspect, the present application provides a cutterhead assembly comprising:

the cutter head comprises a cutter head body, wherein a cutter head is arranged on a first side of the cutter head body along a first direction, a plurality of first wedge blocks are arranged on a second side of the cutter head body, and the first wedge blocks comprise first inclined surfaces;

the rotary driving device comprises a plurality of second wedges, the second wedges comprise second inclined surfaces, and the second inclined surfaces are matched with the first inclined surfaces;

the locking power device can move along the first direction so that the first inclined surface of the first wedge block and the second inclined surface of the second wedge block are mutually abutted or separated.

The cutterhead assembly as described above, optionally, the locking power means has opposed first and second states; in the first state, the locking power device drives the second wedge block to move towards the first wedge block so that the second inclined surface is abutted against the first inclined surface; in the second state, the locking power device drives the second wedge block to move away from the first wedge block so as to separate the second inclined surface from the first inclined surface.

As described above, optionally, the locking power device includes a fixed portion and a movable portion, where the movable portion may extend and retract along the first direction with respect to the fixed portion, the fixed portion is fixedly connected with the cutterhead body, and the movable portion is fixedly connected with the second wedge.

The cutterhead assembly as described above, optionally, the locking power means comprises a hydraulic or pneumatic cylinder.

As mentioned above, optionally, the locking power device is provided with a plurality of locking power devices, and the plurality of locking power devices are in one-to-one correspondence with the plurality of second wedges.

Optionally, the rotary driving device comprises a driving piece and a transmission piece, wherein the driving piece and the transmission piece are connected along a second direction, and the plurality of second wedges are arranged on the transmission piece.

As with the cutterhead assembly described above, optionally, in a plane perpendicular to the first direction, the first wedge may have a progressively decreasing cross-sectional area in a direction away from the cutterhead body and the second wedge may have a progressively increasing cross-sectional area in a direction away from the cutterhead body.

In the cutterhead assembly, optionally, a plurality of the first wedges are distributed along the circumferential direction of the cutterhead body, and a plurality of the second wedges are in one-to-one correspondence with a plurality of the first wedges.

As mentioned above, optionally, the plurality of second wedges are located in a circumference surrounded by the plurality of first wedges, and the locking power device is disposed on a side of the second wedges away from the first wedges along the second direction;

or the first wedges are all positioned in the circumference surrounded by the second wedges, and the locking power device is arranged on one side of the second wedges, which is away from the first wedges, along the second direction.

In another aspect, the application provides a pile driver comprising a cutterhead assembly as defined in any one of the preceding claims.

The application provides a cutter head assembly and a pile driver, wherein the cutter head assembly comprises: the cutter head comprises a cutter head body, a rotary driving device and a locking power device, wherein the cutter head is arranged on a first side of the cutter head body along a first direction, a plurality of first wedge blocks are arranged on a second side of the cutter head body, and the first wedge blocks comprise first inclined surfaces; the rotary driving device comprises a plurality of second wedges, the second wedges comprise second inclined surfaces, and the second inclined surfaces are matched with the first inclined surfaces; the two ends of the locking power device are respectively connected with the first wedge block and the second wedge block, and the locking power device can move along the first direction so that the first inclined surface of the first wedge block and the second inclined surface of the second wedge block are mutually abutted or separated. According to the application, the cutter head body is provided with the plurality of first wedges, the rotary driving device is provided with the plurality of second wedges, the locking power device is used for connecting the first wedges with the second wedges, and the locking power device can drive the first wedges and the second wedges to move relatively when moving, so that the first inclined surface of the first wedges and the second inclined surface of the second wedges are mutually abutted or separated, even if the cutter head is mutually abutted or separated from the rotary driving device, the quick disassembly and assembly of the rotary driving device and the cutter head under the low clearance condition are realized, and the construction efficiency is improved and the cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following descriptions are some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic diagram of a cutterhead assembly according to an embodiment of the present application.

Reference numerals:

100-cutterhead body; 110-cutterhead; 120-a first wedge; 121-a first inclined surface;

200-a slewing drive device; 210-a second wedge; 211-a second inclined surface; 220-a driver; 230-a transmission member;

300-locking the power device;

x-a first direction; y-second direction.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. The following embodiments and features of the embodiments may be combined with each other without conflict.

As described in the background art, in the related art, the rotary driving device in the cutterhead assembly is connected with the cutterhead in the axial direction, and the rotary driving device and the cutterhead are mainly locked by bolts, so that the installation and the disassembly of the rotary driving device and the cutterhead are troublesome, and the requirements on the field are high.

In view of the above, the embodiment of the application aims to provide a cutter head assembly and a pile driver, wherein a plurality of first wedges are arranged on a cutter head body, a plurality of second wedges are arranged on a rotary driving device, the first wedges and the second wedges are connected by a locking power device, and the locking power device can drive the first wedges and the second wedges to move relatively when moving, so that a first inclined surface of the first wedges and a second inclined surface of the second wedges are mutually abutted or separated, namely, the cutter head and the rotary driving device are mutually abutted or separated, thereby realizing the quick assembly and disassembly of the rotary driving device and the cutter head under the low clearance condition, being beneficial to improving the construction efficiency and reducing the cost.

The following detailed description of embodiments of the application is presented in conjunction with the accompanying drawings to enable one skilled in the art to make a more detailed understanding of the application.

It should be noted that, in the description of the present embodiment, the first direction X and the second direction Y may be two different directions perpendicular to each other in space, for example, the first direction X may be an axial direction of the cutterhead, and the second direction Y may be a radial direction of the cutterhead. In other possible embodiments, the first direction X and the second direction Y may be at other angles.

Fig. 1 is a schematic diagram of a cutterhead assembly according to an embodiment of the present application.

Referring to fig. 1, the present embodiment provides a cutterhead assembly, including:

the cutter head body 100, along a first direction X, a cutter head 110 is disposed on a first side of the cutter head body 100, and a plurality of first wedges 120 are disposed on a second side of the cutter head body 100, wherein the first wedges 120 include a first inclined surface 121. Specifically, the cutter head body 100 may be shaped as desired, for example, the cutter head body 100 may be generally in a truncated cone shape. The cutterhead 110 and the first wedge 120 may be detachably mounted on the cutterhead body 100, so that the installation and replacement of users are facilitated. For example, the cutterhead 110 and the cutterhead body 100 can be connected and fixed by adopting a bolt connection, a clamping connection, a threaded connection and the like, and the connection can be specifically selected according to actual needs. The first wedge 120 and the cutterhead body 100 may also be connected by adopting the above-mentioned connection structure, which is not described herein. The specific number of first wedges 120 may be selected according to actual needs.

The swing driving device 200, the swing driving device 200 includes a plurality of second wedges 210, the second wedges 210 include a second inclined surface 211, and the second inclined surface 211 is matched with the first inclined surface 121. Specifically, the rotary driving device 200 may drive the cutterhead 110 to rotate in a plane, so that the cutterhead 110 completes the cutting action. The second wedge 210 and the swing driving device 200 may be detachably connected and fixed, so that the installation and the replacement of a user are facilitated. The specific number of second wedges 210 may be selected according to actual needs.

And the locking power device 300 is respectively connected with the first wedge block 120 and the second wedge block 210 at two ends of the locking power device 300, and the locking power device 300 can move along the first direction X so as to enable the first inclined surface 121 of the first wedge block 120 and the second inclined surface 211 of the second wedge block 210 to be mutually abutted or separated.

With the above arrangement, when the cutterhead 110 is required to be mounted on the swing driving device 200, the locking driving device 300 is only required to abut the first inclined surface 121 of the first wedge block 120 and the second inclined surface 211 of the second wedge block 210; at this time, the swing driving device 200 may transmit power to the cutterhead 110 through the first inclined surface 121 and the second inclined surface 211 that are in contact with each other, so as to drive the cutterhead 110 to perform the swing cutting operation. Similarly, when the cutterhead 110 is required to be removed from the swing drive device 200, the first inclined surface 121 of the first wedge 120 and the second inclined surface 211 of the second wedge 210 need only be separated from each other by the lock drive device 300.

As can be seen from the above description, in the present embodiment, the plurality of first wedges 120 are disposed on the cutterhead body 100, the plurality of second wedges 210 are disposed on the swing driving device 200, the first wedges 120 and the second wedges 210 are connected by the locking power device 300, and the locking power device 300 can drive the first wedges 120 and the second wedges 210 to move relatively when moving, so that the first inclined surfaces 121 of the first wedges 120 and the second inclined surfaces 211 of the second wedges 210 are abutted or separated from each other, that is, the cutterhead 110 and the swing driving device 200 are abutted or separated from each other, thereby realizing the quick assembly and disassembly of the swing driving device 200 and the cutterhead 110 under the low clearance condition, which is beneficial to improving the construction efficiency and reducing the cost.

In one possible implementation, the locking power arrangement 300 of the present embodiment has opposing first and second states. As shown in fig. 1, in the first state, the locking power device 300 drives the second wedge 210 to move toward the first wedge 120, so that the second inclined surface 211 abuts against the first inclined surface 121, and the cutterhead 110 is mounted on the swing driving device 200. In a second state (not shown), the locking power unit 300 drives the second wedge 210 to move away from the first wedge 120, so that the second inclined surface 211 and the first inclined surface 121 are separated from each other, and the cutterhead 110 is detached from the swing driving unit 200.

Further, the locking power device 300 of the present embodiment includes a fixed portion and a movable portion, the movable portion can stretch and retract along the first direction X relative to the fixed portion, the fixed portion is fixedly connected with the cutterhead body 100, and the movable portion is fixedly connected with the second wedge block 210. Specifically, the fixing portion may be provided with a connection seat, and the connection seat and the cutterhead body 100 may be connected by a part such as a bolt; the movable portion may be, for example, a piston rod, and the movable portion and the second wedge 210 may be connected by a component such as a bolt. When the cutterhead 110 needs to be mounted on the swing driving device 200, the movable part can drive the second wedge block 210 to move towards the first wedge block 120, so that the second inclined surface 211 is abutted against the first inclined surface 121; at this time, the swing driving device 200 may transmit power to the cutterhead 110 through the first inclined surface 121 and the second inclined surface 211 that are in contact with each other, so as to drive the cutterhead 110 to perform the swing cutting operation. Similarly, when the cutterhead 110 needs to be detached from the swing driving device 200, the movable portion can drive the second wedge 210 to move away from the first wedge 120, so that the first inclined surface 121 and the second inclined surface 211 are separated from each other.

Alternatively, the locking power device 300 of the present embodiment may be a hydraulic cylinder or a pneumatic cylinder. In other possible embodiments, the locking power device 300 may also be a chain sprocket structure or a gear structure, etc.

Optionally, a plurality of locking power units 300 are provided, and the plurality of locking power units 300 are in one-to-one correspondence with the plurality of second wedges 210. That is, in this embodiment, each of the second wedges 210 is driven by one of the locking power units 300; taking the locking power device 300 as an example, a hydraulic cylinder is adopted, and a plurality of locking power devices 300 can be connected in the same hydraulic system, so that synchronous control is realized.

In one possible embodiment, the swing driving device 200 of the present embodiment includes a driving member 220 and a transmission member 230, where the driving member 220 and the transmission member 230 are connected along the second direction Y, and a plurality of second wedges 210 are disposed on the transmission member 230. Specifically, the driving member 220 may be a common driving member such as a motor, etc., and the driving member 230 may include a structure such as a transmission shaft, a gear ring, a gear, a sprocket, etc., and may be specifically set as required.

In one possible embodiment, the first wedge 120 tapers in cross-sectional area in a direction away from the cutterhead body 100 and the second wedge 210 tapers in cross-sectional area in a direction away from the cutterhead body 100 in a plane perpendicular to the first direction X. That is, under the view shown in fig. 1, both the first wedge 120 and the second wedge 210 have a substantially right trapezoid shape, and the top surface width of the first wedge 120 is smaller than the bottom surface width, and the top surface width of the second wedge 210 is larger than the bottom surface width.

Further, in the present embodiment, the plurality of first wedges 120 are distributed along the circumferential direction of the cutterhead body 100, and the plurality of second wedges 210 are in one-to-one correspondence with the plurality of first wedges 120. With the above structure, the second wedge 210 may move toward the first wedge 120 under the driving of the locking power device 300, such that the second inclined surface 211 abuts against the first inclined surface 121, and then the second inclined surface 211 may move along the first inclined surface 121 until the second wedge 210 and the first wedge 120 are engaged when the two cannot move relatively. At this time, the cutterhead 110 is mounted on the swing driving device 200, and the swing driving device 200 can transmit power to the cutterhead 110 through the first inclined surface 121 and the second inclined surface 211 which are in contact with each other, so as to drive the cutterhead 110 to perform the swing cutting operation.

In one possible embodiment, the plurality of second wedges 210 are all located within a circumference enclosed by the plurality of first wedges 120, i.e., the plurality of second wedges 210 are disposed inside the plurality of first wedges 120, and the locking power device 300 is disposed on a side of the second wedges 210 facing away from the first wedges 120 along the second direction Y. By locating the locking power arrangement 300 on the side of the second wedge 210 facing away from the first wedge 120, space may be fully utilized, which may facilitate reducing the overall volume of the arrangement.

In other possible embodiments, the plurality of first wedges 120 are all located within a circumference enclosed by the plurality of second wedges 210, i.e., the plurality of first wedges 120 are disposed inside the plurality of second wedges 210, and the locking power device 300 is disposed on a side of the second wedges 210 facing away from the first wedges 120 along the second direction.

In summary, in the present embodiment, the plurality of first wedges 120 are disposed on the cutterhead body 100, the plurality of second wedges 210 are disposed on the swing driving device 200, the locking power device 300 is utilized to connect the first wedges 120 and the second wedges 210, and the locking power device 300 can drive the first wedges 120 and the second wedges 210 to move relatively when moving, so that the first inclined surface 121 of the first wedges 120 and the second inclined surface 211 of the second wedges 210 are abutted or separated from each other, that is, even if the cutterhead 110 and the swing driving device 200 are abutted or separated from each other, the quick assembly and disassembly of the swing driving device 200 and the cutterhead 110 under the low clearance condition is realized, which is beneficial to improving the construction efficiency and reducing the cost.

The present embodiment also provides a pile driver comprising a cutterhead assembly of the above embodiment.

The pile driver of the embodiment adopts the cutter head assembly of the embodiment, so that the rotary driving device and the cutter head can be quickly disassembled and assembled under the condition of low clearance, thereby being beneficial to improving the construction efficiency and reducing the cost.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the description of the present application, the terms "first," "second," and the like are merely used for convenience in describing the various elements and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In the present application, each embodiment or implementation manner is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same similar parts among the embodiments are only needed to be referred to each other.

In the description of the present application, reference is made to the description of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., meaning that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (10)

1. A cutterhead assembly, comprising:

the cutter head comprises a cutter head body, wherein a cutter head is arranged on a first side of the cutter head body along a first direction, a plurality of first wedge blocks are arranged on a second side of the cutter head body, and the first wedge blocks comprise first inclined surfaces;

the rotary driving device comprises a plurality of second wedges, the second wedges comprise second inclined surfaces, and the second inclined surfaces are matched with the first inclined surfaces;

the locking power device can move along the first direction so that the first inclined surface of the first wedge block and the second inclined surface of the second wedge block are mutually abutted or separated.

2. The cutterhead assembly of claim 1 wherein the locking power means has opposed first and second conditions; in the first state, the locking power device drives the second wedge block to move towards the first wedge block so that the second inclined surface is abutted against the first inclined surface; in the second state, the locking power device drives the second wedge block to move away from the first wedge block so as to separate the second inclined surface from the first inclined surface.

3. The cutterhead assembly of claim 2 wherein the locking power means comprises a fixed portion and a movable portion, the movable portion being retractable relative to the fixed portion in the first direction, the fixed portion being fixedly connected to the cutterhead body, the movable portion being fixedly connected to the second wedge.

4. The cutterhead assembly of claim 3 wherein the locking power means comprises a hydraulic or pneumatic cylinder.

5. The cutterhead assembly of claim 4 wherein a plurality of locking power means are provided, the plurality of locking power means being in one-to-one correspondence with the plurality of second wedges.

6. The cutterhead assembly of any one of claims 1-5 wherein the rotary drive means comprises a drive member and a transmission member, the drive member and transmission member being connected in a second direction, a plurality of second wedges being disposed on the transmission member.

7. The cutterhead assembly of claim 6 wherein the first wedge tapers in cross-sectional area in a direction away from the cutterhead body and the second wedge tapers in cross-sectional area in a direction away from the cutterhead body in a plane perpendicular to the first direction.

8. The cutterhead assembly of claim 7, wherein a plurality of the first wedges are distributed along a circumferential direction of the cutterhead body, and a plurality of the second wedges are in one-to-one correspondence with a plurality of the first wedges.

9. The cutterhead assembly of claim 8 wherein a plurality of the second wedges are each located within a circumference defined by a plurality of the first wedges, the locking power means being disposed on a side of the second wedges facing away from the first wedges in the second direction;

or the first wedges are all positioned in the circumference surrounded by the second wedges, and the locking power device is arranged on one side of the second wedges, which is away from the first wedges, along the second direction.

10. A pile driver comprising a cutterhead assembly according to any one of claims 1-9.