CN109989439B - Gear swinging mechanism, milling wheel assembly and slot milling machine for continuous wall construction - Google Patents
Gear swinging mechanism, milling wheel assembly and slot milling machine for continuous wall construction Download PDFInfo
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- CN109989439B CN109989439B CN201910393389.3A CN201910393389A CN109989439B CN 109989439 B CN109989439 B CN 109989439B CN 201910393389 A CN201910393389 A CN 201910393389A CN 109989439 B CN109989439 B CN 109989439B
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- 238000003801 milling Methods 0.000 title claims abstract description 111
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 230000000670 limiting effect Effects 0.000 claims abstract description 15
- 230000013011 mating Effects 0.000 claims description 37
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 2
- 238000013016 damping Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 3
- 210000004210 tooth component Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/187—Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Transmission Devices (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The disclosure relates to a tooth swinging mechanism, a milling wheel assembly and a slot milling machine for continuous wall construction. The tooth swinging mechanism comprises: a base (10) having a guide structure (11); a support base (20) rotatable relative to the base (10); a gear milling component (30) for milling; the first swing arm (40) is connected with the gear milling part (30) and is used for adjusting the milling position of the gear milling part (30) through self swing; a second swing arm (50) swingably provided on the support base (20) and having a first end (51) capable of cooperating with the guide structure (11) and a second end (53) for defining a swing range of the first swing arm (40); wherein, when the support base (20) moves relative to the guide structure (11), the second swing arm (50) is configured to swing under the action of the guide structure (11) to adjust the limiting position of the first swing arm (40). The blind area milling in-place effect can be improved through the embodiment of the disclosure.
Description
Technical Field
The disclosure relates to a tooth swinging mechanism, a milling wheel assembly and a slot milling machine for continuous wall construction.
Background
The double-wheel slot milling machine is operation equipment for longitudinally milling slots by means of falling of a milling cutter frame and rotation of milling wheels during construction, and has the advantages of high milling efficiency and good slot forming precision when being used as advanced equipment for continuous wall construction. In recent years, double-wheel slot milling machines are increasingly used in the field of continuous wall construction such as underground seepage prevention and foundation pit support.
The milling wheel is used as an underground execution element for double-wheel milling construction, so that the construction efficiency of double-wheel milling is directly affected, and how to perform comprehensive milling without leaving a rock wall is an important problem to be solved by the construction of the milling wheel. The milling area of the milling wheel can be divided into a milling wheel lower area and a milling blind area of the lower part of the speed reducer, the milling wheel lower area can be milled when the milling wheel rotates normally, and the milling of the milling blind area of the lower part of the speed reducer mainly comprises an active milling mode and a passive milling mode. The active milling is performed by means of milling by means of swinging of a milling wheel, mounting a small milling wheel suitable for blind area milling and the like; the passive milling is a blind zone milling mode which drives the swing teeth (swing teeth for short) to swing by means of rotation of the milling wheel, and further mills the blind zone at the lower part of the speed reducer, and compared with the active milling mode, the passive milling mode has the advantages of simple structure and high reliability.
In some related technologies, the swing tooth structure forms used for double-wheel milling mainly comprise lever type, connecting rod type, magnetic attraction type, spring reset type and the like. The swing tooth structures have the defects of complex structure, milling to a position difference in dead zone, short service life, low milling efficiency and the like.
Disclosure of Invention
In view of the above, the embodiments of the present disclosure provide a tooth swinging mechanism, a milling wheel assembly, and a slot milling machine for continuous wall construction, which can improve the effect of milling blind areas in place.
In one aspect of the present disclosure, there is provided a swing tooth mechanism comprising:
a base having a guide structure;
a support base rotatable relative to the base;
a gear milling component for milling;
the first swing arm is connected with the gear milling part and is used for adjusting the milling position of the gear milling part through self swing;
a second swing arm swingably provided on the support base, and having a first end capable of cooperating with the guide structure and a second end for defining a swing range of the first swing arm;
wherein, when the support seat moves relative to the guide structure, the second swing arm is configured to swing under the action of the guide structure to adjust the limiting position of the first swing arm.
In some embodiments, the first swing arm is swingably disposed on the support base.
In some embodiments, the swing axis of the first swing arm coincides with the swing axis of the second swing arm.
In some embodiments, the swing tooth mechanism further comprises:
the rotating shaft piece is arranged on the supporting seat;
the first swing arm and the second swing arm are both connected with the rotating shaft piece and can rotate relative to the rotating shaft piece.
In some embodiments, the support base comprises: a shaft hole for installing the rotating shaft piece and an installation hole for installing the first swing arm;
the rotating shaft member includes:
the rotating shaft is rotatably arranged in the shaft hole, the first shaft hole of the first swing arm and the second shaft hole of the second swing arm;
the end is fixed on at least one side of the axial direction of the rotating shaft through a connecting piece so as to limit the rotating shaft axially.
In some embodiments, the shaft member further comprises:
the shaft sleeves are respectively arranged between the shaft holes, the inner walls of the first shaft holes and the second shaft holes and the outer wall of the rotating shaft.
In some embodiments, each shaft sleeve is in interference fit with the shaft hole and the inner walls of the shaft hole, the first shaft hole and the second shaft hole respectively, and each shaft sleeve is in clearance fit with the rotating shaft.
In some embodiments, the first swing arm comprises:
the first end is connected with the rotating shaft piece;
the second end is matched with the second end of the second swing arm; and
the third end is connected with the gear milling component;
the first end of the first swing arm is provided with a groove for accommodating the second swing arm.
In some embodiments, the recess is centered along the axis of rotation of the first swing arm at the first end of the first swing arm.
In some embodiments, the second end of the first swing arm has two mating surfaces at a first angle, the second end of the second swing arm has two mating surfaces at a second angle, the two mating surfaces of the first swing arm are respectively adjacent to the two mating surfaces of the second swing arm, and the first angle is not equal to the second angle.
In some embodiments, the second end of the second swing arm has a triangular groove, the second end of the first swing arm has a triangular protrusion, the triangular protrusion is embedded in the triangular groove, two sidewalls of the triangular groove are respectively matched with two sidewalls of the triangular protrusion as two matching surfaces with a second included angle and two matching surfaces with a first included angle, and the first included angle is smaller than the second included angle.
In some embodiments, the first included angle is 60 ° to 100 °, and/or the second included angle differs from the first included angle by 2 ° to 15 °.
In some embodiments, the second included angle is different from the first included angle by 5 ° to 12 °.
In some embodiments, two mating surfaces at a first angle and/or two mating surfaces at a second angle are provided with cushioning members.
In some embodiments, the support base further comprises:
and the limiting structure is positioned on one side of the second swing arm away from the base and used for limiting the maximum rotation angle of the second swing arm in the direction away from the guide structure.
In some embodiments, a wear surface is provided at the first end of the second swing arm and/or at a contact location of the second swing arm with the limit structure.
In one aspect of the present disclosure, there is provided a cutterhead assembly comprising:
a speed reducer;
a hub; and
the tooth swinging mechanism;
wherein the base is arranged on the shell of the speed reducer or is used as a part of the speed reducer, and the supporting seat is arranged on the hub or is used as a part of the hub.
In one aspect of the present disclosure, there is provided a slot milling machine for continuous wall construction, comprising: the milling wheel assembly.
Therefore, according to the embodiment of the disclosure, the limiting position of the swing range of the first swing arm is adjusted through the cooperation of the second swing arm and the guide structure, so that the first swing arm can adjust the milling position of the milling tooth component in the swing range limited by the second swing arm, on one hand, the milling tooth component can mill the corresponding position under the guidance of the guide structure, on the other hand, the milling range of the milling tooth component is enlarged, and the blind area milling in-place effect is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:
FIGS. 1 and 2 are schematic structural views at front and side view angles, respectively, of some embodiments of a cutterhead assembly according to the present disclosure;
FIG. 3 is a partial cross-sectional view of some embodiments of a cutterhead assembly according to the present disclosure;
fig. 4 is a schematic illustration of the mating structure of a first swing arm and a second swing arm in some embodiments of cutterhead assemblies according to the present disclosure.
It should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale. Further, the same or similar reference numerals denote the same or similar members.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.
The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In this disclosure, when a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device. When it is described that a particular device is connected to other devices, the particular device may be directly connected to the other devices without intervening devices, or may be directly connected to the other devices without intervening devices.
All terms (including technical or scientific terms) used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
Fig. 1 and 2 are schematic structural diagrams at front and side view angles, respectively, of some embodiments of cutterhead assemblies according to the present disclosure. Fig. 3 is a partial cross-sectional view of some embodiments of a cutterhead assembly according to the present disclosure. Referring to fig. 1 and 2, in some embodiments, a cutterhead assembly includes: speed reducer, wheel hub and pendulum tooth mechanism. The tooth swinging mechanism comprises: base 10, supporting seat 20, milling teeth part 30, first swing arm 40 and second swing arm 50. When the tooth arrangement is used in a cutterhead assembly, the base 10 may be provided on or as part of the reducer housing, while the support base 20 may be provided on or as part of the hub.
Referring to fig. 1, a base 10 has a guide structure 11. In fig. 1, the guide structure 11 includes a circular arc-shaped axial protrusion provided on one side or both sides of the base 10 with a certain point on the base 10 as a center, and the protrusion may be directly formed on the base 10, or may be provided on an axial end surface of the base 10 by a connecting member such as a bolt. The angle range corresponding to the circular arc axial protrusion can be set according to the milling range of the milling wheel assembly. For example, in fig. 1, the angular range of the circular arc axial projection may include 180 degrees below the center of the circle and the upper partial angle.
The support base 20 can rotate relative to the base 10, and the rotation axis can pass through the center of a circle protruding from the circular arc-shaped axial direction. The gear milling component 30 may include at least one gear milling, and the support base 20 may be driven by the power mechanism to rotate at a certain speed, so as to implement a milling operation of the gear milling component 30 on a milling object (such as a rock wall, etc.).
Referring to fig. 2, in some embodiments, a first swing arm 40 is coupled to the gear milling member 30 for adjusting the milling position of the gear milling member 30 by swinging itself. The swing axis of the first swing arm 40 may be perpendicular to the rotation axis of the support base 20, and when the first swing arm 40 swings, the milling position of the gear milling component 30 connected to the first swing arm 40 is also changed with reference to the swing axis direction of the first swing arm 40. The second swing arm 50 is swingably provided on the support base 20, and has a first end 51 capable of cooperating with the guide structure 11 and a second end 53 for defining a swing range of the first swing arm 40. When the support base 20 moves relative to the guide structure 11, the second swing arm 50 may swing under the action of the guide structure 11 to adjust the defined position of the first swing arm 40.
In fig. 2, the guide structure 11 located at the lower position of the base 10 protrudes rightward with respect to the body of the base 10, and as the support base 20 rotates, when the first end 51 of the second swing arm 50 reaches the side of the guide structure 11 and swings rightward under the pressing action of the guide structure 11, the second end 53 (see fig. 4) of the second swing arm 50 swings leftward.
Fig. 4 is a schematic illustration of the mating structure of a first swing arm and a second swing arm in some embodiments of cutterhead assemblies according to the present disclosure. Referring to fig. 4, a mating structure may be provided between the first swing arm 40 and the second swing arm 50 to enable the first swing arm 40 to adjust the swing position and range under the limited action of the second end 53 of the second swing arm 50. In this way, after the second end 53 of the second swing arm 50 swings leftwards, the first swing arm 40 and the gear milling component 30 connected with the first swing arm also swings leftwards, so that the gear milling component 30 is adjusted from the right side of the base 10 to the lower side of the base 10, and further the milling operation of the blind area below the base 10 is realized. In addition, the first swing arm 40 has a certain adjustment allowance under the limitation of the second end 53 of the second swing arm 50, and can be automatically adjusted along with the stress in the milling process, so that the milling range of the gear milling part is correspondingly enlarged, and the blind zone milling in-place effect is improved.
Referring to fig. 3, in some embodiments, a first swing arm 40 is swingably disposed on the support base 20. The first swing arm 40 is capable of rotating circumferentially with the rotation of the support base 20 and swings relative to the support base 20 under the limitation of the second swing arm 50. In other embodiments, the first swing arm 40 may also be swingably provided on the second swing arm 50.
Referring to fig. 2, in some embodiments, the swing axis of the first swing arm 40 coincides with the swing axis of the second swing arm 50. Accordingly, a rotary shaft member 60 may be further included in the swing tooth mechanism. The rotating shaft member 60 is disposed on the supporting seat 20, and the first swing arm 40 and the second swing arm 50 are connected to the rotating shaft member 60 and rotatable relative to the rotating shaft member 60. The first swing arm 40 and the second swing arm 50 are rotatably disposed on the support base 20 through the rotation shaft member 60, and the structure is relatively simple and compact, and the occupied space is small, so that the milling load is relatively small, and the milling efficiency can be improved.
Referring to fig. 1 and 3, in some embodiments, the support base 20 includes a shaft hole for mounting the rotation shaft member 60 and a mounting hole for mounting the first swing arm 40. The shaft member 60 includes a shaft 61 and a tip 63. The rotating shaft 61 is rotatably disposed in the shaft hole, the first shaft hole of the first swing arm 40, and the second shaft hole of the second swing arm 50. The end 63 is fixed on at least one side of the axial direction of the rotating shaft 61 through a connecting piece, so as to limit the axial direction of the rotating shaft 61, and prevent the rotating shaft 61 from being outwards blown out. In fig. 1, the end 63 may be a pin end in the form of a step and may be secured by a connector such as an expansion pin. In other embodiments, the connector may also be a screw or the like.
Along with the rotation of the first swing arm 40 and the second swing arm 50 relative to the supporting seat 20, the rotating shaft 61 can rotate along with the first swing arm 40 or the second swing arm 50 under the action of friction force, so that abrasion mainly occurs on the rotating shaft 61, abrasion of the first swing arm 40, the second swing arm 50 and the supporting seat 20 is reduced, and the service lives of the oscillating tooth mechanism and the milling wheel assembly are prolonged. In other embodiments, the shaft member 60 may comprise a shaft that is fixed to the support base 20.
Referring to fig. 1, in some embodiments, the shaft member 60 further includes a plurality of bushings 62. A plurality of bushings 62 are respectively provided between the inner walls of the shaft hole, the first shaft hole and the second shaft hole and the outer wall of the rotating shaft 61. In fig. 1, one or more shaft sleeves 62 may be disposed between the first shaft hole and the outer wall of the rotating shaft 61 in an axial direction, and one or more shaft sleeves 62 may be disposed between the second shaft hole and the outer wall of the rotating shaft 61 in an axial direction. Each shaft sleeve 62 may be in interference fit with the shaft hole, the inner walls of the shaft hole, the first shaft hole and the second shaft hole, and each shaft sleeve 62 is in clearance fit with the rotating shaft 61. Thus, when the first swing arm 40 and the second swing arm 50 rotate relative to the support base 20, the shaft sleeve 62 can contact with the rotating shaft 61 and be worn, and when the shaft sleeve 62 or the rotating shaft 61 is worn to a certain extent, the shaft sleeve 62 or the rotating shaft 61 can be detached for replacement. And the abrasion of the inner walls of the shaft hole, the first shaft hole and the second shaft hole is relatively less, so that the maintenance and replacement frequency is reduced, and the service lives of the oscillating tooth mechanism and the milling wheel assembly are prolonged.
In some embodiments, the sleeve may be selected from a sleeve that is self-lubricating, or may further include structure in the wobble mechanism that provides a lubricating medium to the sleeve to reduce wear during relative rotation of the sleeve and the shaft.
Referring to fig. 3 and 4, in some embodiments, the first swing arm 40 includes: a first end 41, a second end 42 and a third end 43. The first end 41 is connected to the shaft member 60 and is rotatable relative to the support base 20. The first end 41 of the first swing arm 40 may have a recess 44 for receiving the second swing arm 50. In this way, the second swing arm 50 is located in the groove 44 of the second swing arm 40, and the axial movement range of the second swing arm is limited by the groove 44, so that the structure is more compact.
The second end 42 mates with a second end 53 of the second swing arm 50. The third end 43 is connected to the gear milling member 30. In order to make the force between the second end 42 of the first swing arm 40 and the second end 53 of the second swing arm 50 more uniform, in fig. 1, the groove 44 is preferably located at the center of the first end 41 of the first swing arm 40 along the rotation axis of the first swing arm 40, so that the second swing arm 50 is located at the center of the first swing arm 40, and the force transmission between the second swing arm 50 and the first swing arm 40 can be more uniform.
Referring to fig. 4, in some embodiments, the second end 42 of the first swing arm 40 has two mating surfaces 42a,42b at a first angle α and the second end 53 of the second swing arm 50 has two mating surfaces 53a,53b at a second angle β. The two mating surfaces 42a,42b of the first swing arm 40 are adjacent to the two mating surfaces 53a,53b of the second swing arm 50, respectively, and the first angle α is not equal to the second angle β. By the angle difference between the mating surfaces of the mating structures of the first swing arm 40 and the second swing arm 50, the first swing arm 40 can swing by a certain angle under the restriction of the second swing arm.
For example, in fig. 4, the second end 53 of the second swing arm 50 has a triangular recess and the second end 42 of the first swing arm 40 has a triangular protrusion. The triangular protrusions are embedded in the triangular grooves, two side walls of the triangular grooves are respectively used as two matching surfaces 53a and 53b with a second included angle beta and two side walls of the triangular protrusions are respectively used as two matching surfaces 42a and 42b with a first included angle alpha, and the first included angle alpha is smaller than the second included angle beta. The first angle α here is preferably 60 ° to 100 °, while the difference between the second angle β and the first angle α is preferably 2 ° to 15 °, more preferably 5 ° to 12 °, for example 10 °.
When the second swing arm 50 is rotated clockwise about the rotation shaft 61 by the pressing of the guide structure against the first end 51 in fig. 4, the second end 53 swings to the left, and both mating surfaces 53a and 53b of the corresponding second end 53 also swing to the left. Along with the swinging of the mating surface 53b, the mating surface 53b can push the mating surface 42b of the second end 42 of the first swing arm 40 to swing leftwards, so as to drive the first swing arm 40 to swing leftwards, and move to a required milling position to perform milling operation on the blind area below.
When the first swing arm 40 swings too much under the action of the milling object, the mating surface 53a may abut against the mating surface 42a to limit the swing amplitude of the first swing arm 40 to the left and prevent the first swing arm from swinging too far, and correspondingly, referring to fig. 2, the support base 20 may further include a limiting structure 21 located on a side of the second swing arm 50 away from the base 10, and may limit the maximum rotation angle of the second swing arm 50 in a direction away from the guide structure 11. In this way, when the mating surface 42a swings too much leftwards, it abuts against the mating surface 53a, and the limiting structure 21 of the second swing arm 50 can limit the contact portion 52 of the second swing arm 50, so that the contact portion cannot rotate rightwards, thereby realizing the limiting effect of the second swing arm 50 on the maximum amplitude of the leftward swing of the first swing arm 40, and further preventing the interference of the milling teeth with other structures (such as milling teeth, etc.) on the other side, and incomplete milling of the blind area, etc.
In other embodiments, a triangular groove may be disposed at the second end 42 of the first swing arm 40, and a triangular protrusion may be disposed at the second end 53 of the second swing arm 50, such that the triangular protrusion is embedded in the triangular groove, and an included angle of the triangular groove is larger than an included angle of the triangular protrusion.
In order to reduce wear between the first swing arm 40 and the second swing arm 50, and considering that the mating surfaces between the second end 42 of the first swing arm 40 and the second end 53 of the second swing arm 50 frequently contact and may be impacted, referring to fig. 4, in some embodiments, a buffer member may be disposed on the two mating surfaces 42a,42b at the first angle α and/or the two mating surfaces 53a,53b at the second angle β, so as to buffer the impact between the mating surfaces, reduce the shock conducted to the support base 20 and the hub during milling, and also reduce the impact of the second swing arm 50 on the guide structure 11 and the base 10, thereby improving the service life and the working stability of the multiple components. The cushioning member may include a pad of rubber or silicone to prevent rigid contact between the mating surfaces and maintain long-term use of the mating components.
In order to improve the wear resistance between the guide structure and the first end 51 of the second swing arm 50, it is preferable to provide a wear-resistant surface at the first end 51 of the second swing arm 50, for example, a wear-resistant surface formed by cladding a wear-resistant material, so that the installation process of additionally installing a wear-resistant block on the swing tooth side can be omitted, and the structure is simpler and more reliable. In addition, in some embodiments, a wear-resistant surface may be disposed at the contact portion 52 between the second swing arm 50 and the limiting structure 21, so as to improve the wear-resistant property between the contact portion 52 and the limiting structure 21 and increase the service life.
The embodiments of the tooth oscillating mechanism described above are applicable to a variety of tooth milling assemblies requiring milling by tooth milling. While the various embodiments of the tooth milling assemblies described above may be used in slot milling machines for continuous wall construction, such as two-wheel slot milling machines and the like. Accordingly, the present disclosure also provides a slot milling machine for continuous wall construction, including an embodiment of any one of the foregoing cutterhead assemblies.
Thus, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (14)
1. A tooth oscillating mechanism, comprising:
a base (10) having a guide structure (11);
a support base (20) rotatable relative to the base (10);
a gear milling component (30) for milling;
the first swing arm (40) is connected with the gear milling part (30) and is used for adjusting the milling position of the gear milling part (30) through self swing;
a second swing arm (50) swingably provided on the support base (20) and having a first end (51) capable of cooperating with the guide structure (11) and a second end (53) for defining a swing range of the first swing arm (40);
a rotating shaft member (60) disposed on the support base (20);
wherein, when the support base (20) moves relative to the guide structure (11), the second swing arm (50) is configured to swing under the action of the guide structure (11) to adjust the limiting position of the first swing arm (40), and the first swing arm (40) and the second swing arm (50) are connected with the rotating shaft piece (60) and can rotate relative to the rotating shaft piece (60); the first swing arm (40) includes:
a first end (41) connected to the shaft member (60);
a second end (42) cooperating with a second end (53) of the second swing arm (50); and
a third end (43) connected to the gear milling component (30);
wherein the first end (41) of the first swing arm (40) has a recess (44) for accommodating the second swing arm (50), the second end (42) of the first swing arm (40) has two mating surfaces (42 a,42 b) that are at a first angle (α), the second end (53) of the second swing arm (50) has two mating surfaces (53 a,53 b) that are at a second angle (β), the two mating surfaces (42 a,42 b) of the first swing arm (40) are respectively adjacent to the two mating surfaces (53 a,53 b) of the second swing arm (50), and the first angle (α) is not equal to the second angle (β), the support base (20) includes a limiting structure (21), and the limiting structure (21) is located on a side of the second swing arm (50) that is away from the base (10) for limiting a maximum rotation angle of the second swing arm (50) in a direction away from the guide structure (11).
2. Tooth mechanism as claimed in claim 1, characterized in that said first swing arm (40) is arranged swingably on said support seat (20).
3. Tooth-oscillating mechanism according to claim 2, characterized in that the oscillation axis of the first oscillating arm (40) coincides with the oscillation axis of the second oscillating arm (50).
4. Tooth mechanism as claimed in claim 1, characterized in that said support seat (20) comprises: a shaft hole for installing a rotating shaft member (60) and an installation hole for installing the first swing arm (40);
the rotating shaft member (60) includes:
a rotating shaft (61) rotatably arranged in the shaft hole, the first shaft hole of the first swing arm (40) and the second shaft hole of the second swing arm (50);
the end head (63) is fixed on at least one side of the axial direction of the rotating shaft (61) through a connecting piece so as to limit the rotating shaft (61) axially.
5. The tooth system as defined in claim 4, wherein said shaft member (60) further includes:
and a plurality of shaft sleeves (62) respectively arranged between the inner walls of the shaft holes, the first shaft holes and the second shaft holes and the outer wall of the rotating shaft (61).
6. The tooth system as claimed in claim 5, characterized in that each sleeve (62) is in an interference fit with the inner walls of said shaft hole and said shaft holes, said first shaft hole and said second shaft hole, respectively, and each sleeve (62) is in a clearance fit with said shaft (61).
7. Tooth mechanism as claimed in claim 1, characterized in that said recess (44) is located centrally of the first end (41) of the first swing arm (40) along the axis of rotation of the first swing arm (40).
8. Tooth-setting mechanism according to claim 1, characterized in that the second end (53) of the second swing arm (50) has a triangular recess, the second end (42) of the first swing arm (40) has a triangular projection, which is embedded in the triangular recess, the two side walls of the triangular recess cooperate with the two side walls of the triangular projection as two mating surfaces (53 a,53 b) at a second angle (β) respectively, with the two side walls of the triangular projection as two mating surfaces (42 a,42 b) at a first angle (α) respectively, and the first angle (α) is smaller than the second angle (β).
9. Tooth mechanism as claimed in claim 8, characterized in that said first angle (α) is 60 ° to 100 ° and/or the difference between said second angle (β) and said first angle (α) is 2 ° to 15 °.
10. Tooth mechanism as claimed in claim 9, characterized in that said second angle (β) differs from said first angle (α) by 5 ° to 12 °.
11. Tooth mechanism as claimed in claim 1, characterized in that the two mating surfaces (42 a,42 b) at the first angle (α) and/or the two mating surfaces (53 a,53 b) at the second angle (β) are provided with damping elements.
12. Tooth mechanism as claimed in claim 1, characterized in that a wear surface is provided at the first end (51) of the second swing arm (50) and/or at the contact point (52) of the second swing arm (50) with the limit structure (21).
13. A cutterhead assembly, comprising:
a speed reducer;
a hub; and
a tooth mechanism according to any one of claims 1 to 12;
wherein the base (10) is arranged on the shell of the speed reducer or is a part of the speed reducer, and the supporting seat (20) is arranged on the hub or is a part of the hub.
14. A slot milling machine for diaphragm wall construction, characterized by comprising:
the cutterhead assembly of claim 13.
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| CN201910393389.3A CN109989439B (en) | 2019-05-13 | 2019-05-13 | Gear swinging mechanism, milling wheel assembly and slot milling machine for continuous wall construction |
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| CN201910393389.3A CN109989439B (en) | 2019-05-13 | 2019-05-13 | Gear swinging mechanism, milling wheel assembly and slot milling machine for continuous wall construction |
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| CN109989439B true CN109989439B (en) | 2023-12-08 |
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| CN110777866B (en) * | 2019-12-05 | 2024-04-30 | 江苏徐工工程机械研究院有限公司 | Milling wheel assembly of milling groove machine for building construction and milling groove machine |
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