Hydraulic double-wheel milling and stirring drill bit

Abstract

The utility model relates to the technical field of foundation treatment equipment, and disclose a kind of hydraulic double-wheel milling mixing drill rig cutter head, including cutter head main part and connecting disc, annular groove is set up on the cutter head main part, connecting disc rotatable is installed in annular groove, first mounting hole is set up on the cutter head main part;The utility model can be rotatable by connecting disc installation in annular groove, after installing cutter head into mounting groove, by rotating connecting disc can make the plugboard insert into arc connecting groove, and make first mounting hole and second mounting hole alignment, so it can be fixed to cutter head, its installation mode is simple and fast, and it is combined with the locking effect of fixed screw rod, the cutter head can be quickly installed, and it is convenient to replace cutter head, so that cutter head such vulnerable parts can be replaced separately, so as to avoid cutter head overall scrap, so it is beneficial to maintain the use state of cutter head and save cost.

Description

Technical Field

[0001] This utility model relates to the technical field of foundation treatment equipment, specifically a hydraulic dual-wheel milling mixing drill cutterhead. Background Technology

[0002] The hydraulic twin-wheel milling and mixing drilling rig is an advanced foundation treatment construction equipment, widely used in deep mixing and reinforcement projects under complex geological conditions such as soft soil, sand, and clay layers. The equipment drives the milling wheel to rotate at high speed through a hydraulic system, achieving efficient cutting and crushing of the soil. It features strong power, flexible construction, and excellent wall quality, and is particularly suitable for seepage prevention walls, underground continuous walls, and various foundation reinforcement projects.

[0003] However, traditional cutterheads and cutter heads are generally integrated, meaning that when the cutter head wears out, it cannot be replaced individually; the entire cutterhead must be replaced. This leads to high maintenance costs, especially in complex geological conditions where the cutter head wears faster, significantly shortening its overall lifespan and further increasing construction costs. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic twin-wheel milling mixing drill cutter head to solve the problem that the cutter head and cutter head are an integral structure, making it impossible to replace them separately and resulting in high operating costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic twin-wheel milling mixing drill cutter head, comprising a cutter head body and a connecting plate. The cutter head body has an annular groove, and the connecting plate is rotatably mounted in the annular groove. The cutter head body has a plurality of first mounting holes, and the connecting plate has a plurality of second mounting holes. Each second mounting hole is provided with a fixing screw. The cutter head body has a plurality of mounting grooves communicating with the annular groove, and each mounting groove is provided with a cutter head. Each cutter head is provided with an arc-shaped connecting groove. The connecting plate is fixedly connected with a plurality of insert plates adapted to the arc-shaped connecting grooves, and each insert plate is disposed inside the arc-shaped connecting groove.

[0006] Preferably, each of the second mounting holes is a countersunk hole, and one end of each fixing screw passes through the first mounting hole and extends to the rear of the cutter head body.

[0007] Preferably, a plurality of limiting flanges are fixedly connected to the cutter head body, each limiting flange is disposed outside the first mounting hole, and each fixing screw is disposed inside the limiting flange.

[0008] Preferably, each of the insert plates is L-shaped, and each of the mounting slots has an arc-shaped channel inside for accommodating the insert plate.

[0009] Preferably, a pad is fixedly connected to the bottom of each of the blades, and each pad is a rubber pad.

[0010] Preferably, the cutter head body has a plurality of slots, and each cutter head is fixedly connected with a plug that is adapted to the slot, and each plug is inserted into the inside of the slot.

[0011] Preferably, each of the cutting heads has a milling bevel.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention rotatably mounts the connecting disc in an annular groove. After the cutter head is installed in the mounting groove, rotating the connecting disc allows the insert plate to be inserted into the arc-shaped connecting groove, aligning the first mounting hole with the second mounting hole, thus fixing the cutter head. The installation method is simple and quick. Combined with the locking effect of the fixing screw, it enables rapid installation of the cutter head and facilitates its replacement. This allows vulnerable parts like the cutter head to be replaced individually, avoiding the scrapping of the entire cutter head. This helps maintain the usability of the cutter head and saves costs. Attached Figure Description

[0014] Figure 1 A three-dimensional structural schematic diagram of the cutter head body provided by this utility model;

[0015] Figure 2 Rear view of the cutter head body provided by this utility model;

[0016] Figure 3 A schematic diagram of the annular groove provided by this utility model;

[0017] Figure 4 A three-dimensional structural diagram of the connecting plate provided by this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the blade provided by this utility model.

[0019] In the diagram: 1. Cutter head body; 2. Connecting plate; 3. Annular groove; 4. Fixing screw; 5. Mounting groove; 6. Cutter head; 7. Arc-shaped connecting groove; 8. Insert plate; 9. Limiting flange; 10. Arc-shaped channel; 11. Pad; 12. Slot; 13. Insert block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 As shown, a hydraulic twin-wheel milling mixing drill cutterhead includes a cutterhead body 1 and a connecting plate 2. The cutterhead body 1 has an annular groove 3, and the connecting plate 2 is rotatably mounted in the annular groove 3. The cutterhead body 1 has several mounting grooves 5 communicating with the annular groove 3. Each mounting groove 5 contains a cutter head 6, and each cutter head 6 has a milling bevel. Each cutter head 6 has an arc-shaped connecting groove 7. Several insert plates 8 adapted to the arc-shaped connecting groove 7 are fixedly connected to the connecting plate 2. Each insert plate 8 is located inside the arc-shaped connecting groove 7 and is L-shaped. Each mounting groove 5 has an arc-shaped channel 10 for accommodating the insert plate 8.

[0022] Specifically, the connecting plate 2 is rotatably installed in the annular groove 3, and its rotational movement drives the insert plate 8 to move, enabling quick locking or releasing of the cutter head 6. The mounting groove 5 is the mounting base for the cutter head 6, and its internal shape matches the cutter head 6, ensuring that the cutter head 6 can be accurately embedded. The cutter head 6 is detachable, allowing it to be replaced individually after wear, thereby reducing maintenance costs.

[0023] The cutter head body 1 has several first mounting holes, and the connecting plate 2 has several second mounting holes. Each second mounting hole contains a fixing screw 4. Each second mounting hole is countersunk, and one end of each fixing screw 4 passes through the first mounting hole and extends to the rear of the cutter head body 1. Multiple limiting flanges 9 are fixedly connected to the cutter head body 1. Each limiting flange 9 is located outside the first mounting holes, and each fixing screw 4 is located inside the limiting flange 9.

[0024] After the second mounting hole on the connecting disc 2 is aligned with the first mounting hole on the cutter head body 1, it can be secured with the fixing screw 4 to prevent the connecting disc 2 from loosening during operation. The countersunk hole prevents the screw head from being exposed, avoiding interference or wear during operation and improving service life. The limiting flange 9 further enhances the shear resistance of the fixing screw 4, preventing deformation or breakage of the fixing screw 4 under stress during high-speed rotation or high-load milling, thus improving the stability of the overall structure.

[0025] Each cutter head 6 has a fixed pad 11 at its bottom, and each pad 11 is a rubber pad. The cutter head body 1 has several slots 12, and each cutter head 6 has a fixed insert 13 that matches the slot 12. Each insert 13 is inserted into the inside of the slot 12. The insertion 13, in cooperation with the slot 12, positions the cutter head 6 during installation and further enhances its radial stability, preventing it from shaking during high-speed rotation and improving cutting accuracy.

[0026] Working principle: In use, the cutting head 6 can be installed into the mounting groove 5, and the insert 13 on the cutting head 6 can be inserted into the slot 12 on the cutter body 1, thereby initially fixing the position of the cutting head 6. The pad 11 set at the bottom of the cutting head 6 can buffer vibration and ensure that the cutting head 6 is tightly fitted with the mounting groove 5. Then, by rotating the connecting plate 2, the insert 8 on the connecting plate 2 can be inserted into the arc-shaped connecting groove 7 on the cutting head 6, constraining the cutting head 6 and fixing it. When the connecting plate 2 is rotated to the preset position, the second mounting hole on it can be aligned with the first mounting hole on the cutter body 1. At this time, The fixed screw 4 can be used to fix the two parts together and can also be used to connect to an external drive device. The limiting flange 9 set on the cutter head body 1 can wrap the fixed screw 4 to further enhance its shear resistance and ensure stable connection. During the milling operation, the cutter head body 1 can rotate under the hydraulic drive of the external device, driving the cutter head 6 to mill the construction part. The milling bevel on the cutter head 6 can ensure its cutting efficiency. When the cutter head 6 needs to be replaced, simply loosen the fixed screw 4 and rotate the connecting plate 2 in the opposite direction to make the insert plate 8 exit the arc-shaped connecting groove 7, so that the worn cutter head 6 can be taken out. The operation is relatively convenient.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic dual-wheel, milling, reaming, and drilling cutter head comprising a cutter head body and a connecting disc, characterized in that, The cutter head body has an annular groove, and the connecting plate is rotatably installed in the annular groove. The cutter head body has several first mounting holes, and the connecting plate has several second mounting holes. Each second mounting hole is provided with a fixing screw. The cutter head body has several mounting slots that communicate with the annular groove. Each mounting slot is provided with a cutter head. Each cutter head is provided with an arc-shaped connecting slot. Several insert plates that are adapted to the arc-shaped connecting slots are fixedly connected to the connecting plate. Each insert plate is located inside the arc-shaped connecting slot.

2. A hydraulic dual-wheel, milling, reaming, and boring machine cutter head according to claim 1, characterized in that: Each of the second mounting holes is configured as countersunk holes, and one end of each of the fixing screws passes through the first mounting hole and extends to the rear of the cutter head body.

3. The hydraulic twin-wheel milling mixing drill cutterhead according to claim 2, characterized in that: Multiple limiting flanges are fixedly connected to the cutter head body. Each limiting flange is located outside the first mounting hole, and each fixing screw is located inside the limiting flange.

4. The hydraulic twin-wheel milling mixing drill cutterhead according to claim 1, characterized in that: Each of the insert plates is L-shaped, and each of the mounting slots has an arc-shaped channel inside for accommodating the insert plate.

5. The hydraulic twin-wheel milling mixing drill cutterhead according to claim 1, characterized in that: Each of the cutter heads has a pad fixedly connected to its bottom, and each pad is a rubber pad.

6. The hydraulic twin-wheel milling mixing drill cutterhead according to claim 5, characterized in that: The cutter head body has several slots, and each cutter head is fixedly connected to a plug that matches the slot, with each plug inserted into the inside of the slot.

7. The hydraulic twin-wheel milling mixing drill cutterhead according to claim 6, characterized in that: Each of the aforementioned cutting heads has a milling bevel.

Images