Combined double-wheel trencher wheel device

Abstract

The utility model provides a kind of combined double-wheel trencher milling wheel device, including milling wheel frame and the wheel hub rotationally connected below milling wheel frame, the circumferential welding of wheel hub has several toothed plates and several tapered teeth, the end of toothed plate is detachably connected with standard tooth, the height of tooth tip of tapered tooth does not exceed the height of tooth tip of standard tooth, by the combination use of standard tooth and tapered tooth, more complex and changeable stratum can be better coped with, construction efficiency is improved, and standard tooth, which is prone to wear, is connected by toothed plate and wheel hub, convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of twin-wheel grooving machines, and in particular to a combined twin-wheel grooving machine milling wheel device. Background Technology

[0002] Diaphragm walls are deep foundation pit support structures that integrate the functions of foundation pit protection and water-stopping curtains. They play an irreplaceable role in deep and large foundation pit projects, featuring high rigidity, good integrity, and strong impermeability. They provide a stable foundation for major infrastructure projects such as urban rail transit, water conservancy and hydropower, port construction, and high-rise buildings, demonstrating excellent adaptability and stability in complex and ever-changing urban geological environments. Twin-wheel trenching machines are specialized equipment used for trenching diaphragm walls.

[0003] During construction, twin-wheel trenching machines select different types of milling wheels to address the complex and varied geological formations. Standard toothed milling wheels are prone to tooth breakage and severe tooth plate wear in hard formations, resulting in extremely low efficiency. Conical toothed milling wheels, while easily cutting into softer formations due to their smaller alloy tips, also suffer from low efficiency as the conical tooth tips do not effectively scrape the formation. In viscous formations, the dense arrangement of the cutting teeth on the milling wheel easily leads to wheel clogging. For milling wheels with only a single type of tooth, selecting different types of milling wheels for different geological conditions necessitates frequent wheel changes, wasting significant time, increasing labor intensity, and severely reducing construction efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a combined double-wheel milling wheel device that can solve the problem that a single type of milling wheel is difficult to deal with complex and varied strata.

[0005] Therefore, the present invention adopts the following technical solution:

[0006] A combined double-wheel milling machine milling wheel device includes a milling wheel frame and a hub rotatably connected to the bottom of the milling wheel frame. The hub is circumferentially welded with a plurality of toothed plates and a plurality of conical teeth. The ends of the toothed plates are detachably connected with standard teeth. The tip height of the conical teeth does not exceed the tip height of the standard teeth.

[0007] Based on the above technical solutions, the present invention may also adopt the following further technical solutions, or combine these further technical solutions:

[0008] The hub is axially welded with several rings of the toothed plates.

[0009] A conical tooth is provided between two adjacent toothed plates, and the running trajectory of the conical tooth is parallel to that of the standard tooth.

[0010] Several scraper blades are fixed below the milling wheel frame, and the scraper blades are located between the toothed plate and the conical tooth and closer to the toothed plate.

[0011] The toothed plate has a mounting groove at its end, one end of the standard tooth is inserted into the mounting groove, and the toothed plate and the standard tooth are connected by a fixing pin.

[0012] The surface of the toothed plate is provided with several wear-resistant nails.

[0013] The cutting angle of the conical teeth is 50°~60°.

[0014] The cutting angle of the standard tooth is 80°~90°.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: by using a combination of standard teeth and conical teeth, it can better cope with complex and varied strata, improve construction efficiency, and the easily worn standard teeth are connected to the hub through the tooth plate, making them easy to replace. Attached Figure Description

[0016] Figure 1 This is a front view of the present invention.

[0017] Figure 2 This is a side view of the present invention. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote elements with the same or similar functions throughout. However, it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting this utility model. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this utility model.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0020] This utility model provides a combined double-wheel milling machine milling wheel device, including a milling wheel frame 9 and a hub 1 rotatably connected to the bottom of the milling wheel frame 9. The hub 1 is circumferentially welded with a number of toothed plates 2 and a number of conical teeth 3. The ends of the toothed plates 2 are detachably connected with standard teeth 4. The tip height of the conical teeth 3 does not exceed the tip height of the standard teeth 4. During milling, the conical teeth 3 can better utilize the cracks generated after milling by the standard teeth 4.

[0021] In this embodiment, the toothed plate 2 and the conical tooth 3 are arranged alternately.

[0022] When milling softer formations, the strong scraping ability of standard tooth 4 is mainly utilized, resulting in high milling efficiency. When milling hard formations, standard tooth 4 will pre-break the formation after milling, creating a large number of cracks. At this time, conical tooth 3 will follow up with milling. The conical alloy head at the end of conical tooth 3 has a good rock-breaking ability, which can better scrape the formation and improve milling efficiency.

[0023] Standard tooth 4 is in the form of a flat plate, which wears relatively more during rock breaking. It is easy to replace by connecting it with tooth plate 2.

[0024] The hub 1 has several rings of toothed plates 2 welded axially.

[0025] A conical tooth 3 is set between two adjacent toothed plates 2, and the running trajectories of the conical tooth 3 and the standard tooth 4 are parallel.

[0026] Several scraper blades 8 are fixed below the milling wheel frame 9. The scraper blades 8 are located between the toothed plate 2 and the conical tooth 3 and are closer to the toothed plate 2.

[0027] By setting up a scraper 8, when the standard tooth 4 and the conical tooth 3 are working, the scraper 8 simultaneously cleans the mud adhering to the side wall of the tooth plate 2, preventing the mud from completely covering the tooth plate 2, avoiding the loss of milling ability of the standard tooth 4 and the conical tooth 3 due to mud adhesion, avoiding the need to replace or clean the milling wheel and interrupt the milling work of the milling wheel assembly, greatly improving the working efficiency of the double wheel milling machine, saving construction costs, and solving the problem of wheel clogging that may occur when the milling wheel is working.

[0028] The toothed plate 2 has a mounting groove 5 at its end. One end of the standard tooth 4 is inserted into the mounting groove 5. The toothed plate 2 and the standard tooth 4 are connected by a fixing pin 6 to prevent the milled tooth from falling off.

[0029] The surface of the toothed plate 2 is provided with several wear-resistant nails 7, which can effectively reduce the wear of the toothed plate 2 to a certain extent and extend its service life.

[0030] The cutting angle of the bevel tooth 3 is 50°~60°, and the middle value of 55° is usually taken.

[0031] The cutting angle of standard tooth 4 is 80°~90°, and under normal conditions, the middle value of 85° is taken.

[0032] The distribution and number of tooth plates 2 and conical teeth 3, as well as the height difference between the tips of conical teeth 3 and standard teeth 4, can be designed and adjusted according to the actual geological conditions.

[0033] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the combined double-wheel grooving machine milling wheel device of this utility model, and can produce the positive effects described in this utility model.

[0034] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "connected," and "sleeve-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two mechanisms, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

[0036] Furthermore, in practicing the claims of this utility model, those skilled in the art can understand and influence variations to the disclosed embodiments through a study of the drawings, the disclosure, and the appended claims. Additionally, in the claims and description, words such as "comprising" and "containing" do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the present utility model are covered by the scope of the claims of the present utility model, and will not be listed here.

Claims

1. A combined double-wheel milling machine milling wheel device, comprising a milling wheel frame (9) and a wheel hub (1) rotatably connected to the lower part of the milling wheel frame (9), characterized in that, The hub (1) is circumferentially welded with several toothed plates (2) and several conical teeth (3). The ends of the toothed plates (2) are detachably connected with standard teeth (4). The tip height of the conical teeth (3) does not exceed the tip height of the standard teeth (4).

2. The combined double-wheel milling wheel device for a grooving machine as described in claim 1, characterized in that, The hub (1) is axially welded with several rings of the toothed plates (2).

3. The combined double-wheel milling wheel device for a grooving machine as described in claim 2, characterized in that, A conical tooth (3) is provided between two adjacent tooth plates (2), and the running trajectories of the conical tooth (3) and the standard tooth (4) are parallel.

4. The combined double-wheel milling wheel device for a grooving machine as described in claim 3, characterized in that, Several scraper blades (8) are fixed below the milling wheel frame (9). The scraper blades (8) are located between the toothed plate (2) and the conical tooth (3) and are closer to the toothed plate (2).

5. The combined double-wheel milling wheel device for a grooving machine as described in claim 1, characterized in that, The toothed plate (2) has an installation groove (5) at its end. One end of the standard tooth (4) is inserted into the installation groove (5). The toothed plate (2) and the standard tooth (4) are connected by a fixing pin (6).

6. The combined double-wheel milling wheel device for a grooving machine as described in claim 1, characterized in that, The surface of the toothed plate (2) is provided with several wear-resistant nails (7).

7. The combined double-wheel milling wheel device for a grooving machine as described in claim 1, characterized in that, The cutting angle of the conical tooth (3) is 50°~60°.

8. The combined double-wheel milling wheel device for a grooving machine as described in claim 1, characterized in that, The cutting angle of the standard tooth (4) is 80°~90°.

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