CN218019423U - Milling head of double-wheel hydraulic milling drilling machine - Google Patents
Milling head of double-wheel hydraulic milling drilling machine Download PDFInfo
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- CN218019423U CN218019423U CN202222364901.1U CN202222364901U CN218019423U CN 218019423 U CN218019423 U CN 218019423U CN 202222364901 U CN202222364901 U CN 202222364901U CN 218019423 U CN218019423 U CN 218019423U
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Abstract
The utility model discloses a milling head of a double-wheel hydraulic milling drilling machine, which comprises a cutter head, a fixed cutter component, a swinging cutter component and a first drill bit; the fixed cutter component is arranged on the side wall of the cutter head, and is driven by the cutter head to cut soil at the diameter extending direction of the cutter head; the cutter swinging assembly is arranged on the side wall of the cutter head, swings along the axial direction of the cutter head, and cuts soil in the axial direction of the cutter head under the driving of the cutter head; the first drill bit is arranged on the cutter swinging assembly, and the tip of the first drill bit faces the soil facing surface of the cutter swinging assembly. The utility model discloses set up first drill bit on pendulum sword subassembly to can show the cutting ability that promotes pendulum sword, and then promote the drilling speed of double round hydraulic milling rig.
Description
Technical Field
The utility model discloses a milling head of double round hydraulic milling rig belongs to construction machinery technical field.
Background
The milling wheels of the double-wheel hydraulic milling drilling machine are loaded on two sides of the base plate. During operation, the milling wheel only rotates in the radial direction and does not swing in the axial direction, so that soil right below the substrate (blind area) is difficult to remove. In order to remove the soil right under the substrate, the prior art is to arrange a swinging knife on the milling head.
The swinging cutter needs to cut the blind area, so that the swinging cutter has certain mobility, and correspondingly, compared with the fixed cutter seat, the cutting capability of the swinging cutter is weakened, so that the drilling speed of the double-wheel hydraulic milling drilling machine is reduced.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a milling head of a double-wheel hydraulic milling drilling machine, and solves the technical problem that in the prior art, the drilling speed of the double-wheel hydraulic milling drilling machine is low due to the fact that the cutting capability of a swinging cutter at the milling head is weak.
The utility model provides a milling head of a double-wheel hydraulic milling drilling machine, which comprises a cutter head, a fixed cutter component, a cutter swinging component and a first drill bit;
the fixed cutter assembly is arranged on the side wall of the cutter head and is driven by the cutter head to cut soil at the diameter extending direction of the cutter head;
the cutter swinging assembly is arranged on the side wall of the cutter head, swings along the axial direction of the cutter head, and is driven by the cutter head to cut soil in the axial direction of the cutter head;
the first drill bit is arranged on the cutter swinging assembly, and the tip end of the first drill bit faces the soil facing surface of the cutter swinging assembly.
Preferably, the pendulum knife assembly comprises a pendulum knife holder and a pendulum knife;
the swinging cutter holder is hinged with the side wall of the cutter head;
the swinging cutter is arranged in the swinging cutter holder and swings along the axial direction of the cutter head;
the first drill bit is fixedly arranged on the swinging cutter, and the tip end of the first drill bit faces the soil facing surface of the swinging cutter.
Preferably, the pendulum cutter assembly further comprises a second drill bit;
the second drill bit is fixedly arranged on the swing cutter holder, and the tip of the second drill bit faces the soil facing surface of the swing cutter holder.
Preferably, a mudguard is further included;
one end of the mudguard is fixedly arranged on the outer wall of a gear box of the gear which drives the cutter head to move, and the other end of the mudguard is a first distance away from the side wall of the cutter head;
the fender is parallel to the fixed knife assembly and has a second distance with the fixed knife assembly.
Preferably, a plurality of wear strips are also included;
the wear-resistant strips are arranged on the side wall of the cutter head.
Preferably, the extending direction of the wear-resistant strips is the same as the axis of the cutter head;
the length of the wear-resistant strip is the same as the width of the cutter head;
the height of the wear-resistant strips is 3-5mm;
the interval between adjacent wear-resistant strips is 3-5cm.
Preferably, the fixed cutter assembly includes a fixed cutter seat and a third drill bit;
the fixed cutter holder is fixedly arranged on the side wall of the cutter head;
the third drill bit is fixedly arranged on the fixed cutter seat and used for cutting soil at the position of the diameter extending direction of the cutter disc.
Preferably, the stationary knife assembly further comprises a plurality of wear resistant projections;
the wear-resistant protrusion is arranged on the surface of the fixed cutter holder.
Preferably, the wear-resistant protrusions are punctiform protrusions with the diameter of 0.8cm-1.2 cm.
Preferably, the wear-resistant strips and the wear-resistant protrusions are made of alloy materials.
The utility model discloses a milling head of double round hydraulic milling rig compares in prior art, has following beneficial effect:
the utility model discloses set up first drill bit on the pendulum sword subassembly to can show the cutting ability that promotes the pendulum sword, and then promote the drilling speed of double round hydraulic milling rig.
The utility model discloses a set up the fender, can scrape the cement soil combination thing on fixed knife tackle spare, the pendulum knife tackle spare to alleviate the load of milling head, be convenient for promote.
The utility model discloses a set up wear-resisting component on the lateral wall of blade disc and fixed blade holder to can reduce the wear rate of blade disc and fixed blade holder, prolong the life of milling head.
Drawings
Fig. 1 is a schematic view of the overall structure of a milling head of a two-wheel hydraulic milling drilling machine according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a knife swinging assembly in an embodiment of the present invention.
In the figure, 1 is a cutter head; 11 is a wear-resistant strip; 2 is a fixed knife assembly; 21 is a fixed tool apron; 211 is a wear-resistant bulge; 22 is a third drill bit; 3 is a swinging knife component; 31 is a swing knife holder; 32 is a swinging knife; 33 is a second drill bit; 4 is a first drill bit; 5 is a mudguard; and 6 is a gear box.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
As shown in fig. 1, a milling head of a two-wheel hydraulic milling drilling machine according to an embodiment of the present invention includes a cutter head 1, a fixed cutter assembly 2, a pendulum cutter assembly 3, and a first drill 4;
the fixed cutter assembly 2 is arranged on the side wall of the cutter head 1, and is driven by the cutter head 1 to cut soil at the diameter extending direction of the cutter head 1;
the cutter swinging assembly 3 is also arranged on the side wall of the cutter head 1, swings along the axial direction of the cutter head 1, and cuts soil mass in the axial direction of the cutter head under the driving of the cutter head 1; the pendulum knife assembly in the utility model is a pendulum knife assembly in the prior art, for example, a pendulum knife on a JCM8 type milling head produced by Shanghai Jintai, and the utility model is not limited in detail herein;
the first drill bit 4 is arranged on the pendulum cutter assembly 3, and the tip of the first drill bit 4 faces the soil-facing surface of the pendulum cutter assembly 3.
The embodiment of the utility model provides a set up first drill bit 4 on pendulum sword subassembly 3 to can show the cutting ability that promotes the pendulum sword, and then promote the drilling speed of double round hydraulic milling rig.
Further, the pendulum knife assembly 3 in the implementation of the present invention includes a pendulum knife holder 31 and a pendulum knife 32;
wherein the swing knife holder 31 is hinged with the side wall of the cutter head 1;
the swinging knife 32 is arranged in the swinging knife holder 31 and can swing along the axial direction of the cutter head 1;
the first drill 4 is disposed on the swinging blade 32, and a tip of the first drill 4 faces the soil-facing surface of the swinging blade 32 to help the swinging blade 32 to share the breaking pressure.
The embodiment of the present invention provides an embodiment, for further improving the cutting ability of the pendulum knife assembly 3, a second drill bit 33 is further disposed on the pendulum knife holder 31, the number of the second drill bits can be one or more, and the tip of the second drill bit 33 faces the soil surface of the pendulum knife holder 31.
For preventing that the cement soil combination thing from gluing on the milling head of double round hydraulic milling rig, causing the promotion difficulty, the embodiment of the utility model provides a still set up fender 5, the one end of fender 5 is fixed to be set up in 6 outer walls of gear box of the gear that drive the motion of milling head, and the other end has first distance with the lateral wall of blade disc 1, and fender 5 is parallel with fixed knife tackle spare 2 and has the second distance with fixed knife tackle spare 2. In the working process of the milling head, when the fixed cutter assembly 2 or the swinging cutter assembly 3 moves to the position of the mudguard 5 along with the rotation of the cutter disc 1, cement soil mixture bonded on the fixed cutter assembly 2 or the swinging cutter assembly 3 can touch the mudguard 5, so that the cement soil mixture is scraped by the mudguard 5, and the load of the milling head is further reduced.
The shape of fender 5 in this embodiment can be rectangle, notch cuttype etc. and its material can be the steel, the utility model discloses do not limit to this.
The fixed cutter component 2 of the embodiment of the utility model comprises a fixed cutter seat 21 and a third drill bit 22;
the fixed cutter holder 21 is fixedly arranged on the side wall of the cutter head 1;
the third drill 22 is arranged on the fixed cutter seat 21, and the third drill 22 is used for cutting soil at the diameter extending direction of the cutter head 1.
Because the milling head is in the milling process, the milling head can be forcibly embedded into the soil body under the driving of hydraulic pressure, and can generate severe friction with the soil body, thereby causing great abrasion to the cutter head 1 and the cutter holder and reducing the service life of the cutter head 1 and the cutter holder. The embodiment of the utility model provides a still set up many wear strips 11 on the lateral wall of blade disc 1. The wear strip 11 can protect the cutter head 1 by wearing itself out in severe friction.
In the embodiment of the utility model, the extending direction of wear resistant strip 11 is the same with the axis of blade disc 1, and the interval between the adjacent wear resistant strip 11 is 3-5cm, and the length of wear resistant strip 11 is the same with the width of blade disc 1, and the height of wear resistant strip 11 is 3-5mm. The arrangement can reduce the friction force borne by the wear-resistant strips 11 and simultaneously reduce the resistance in the cutting process.
In order to further reduce the abrasion of the tool apron, the embodiment of the utility model also arranges a wear-resistant bulge 211 on the surface of the fixed tool apron 21;
the wear-resistant protrusions 211 are point-shaped protrusions with the diameter of 0.8cm-1.2 cm.
The materials of the wear-resistant strips 11 and the wear-resistant protrusions 211 can be high-hardness materials, such as alloy materials.
The device of the invention will be described in detail below with specific embodiments.
In the aeolian fine sand stratum, the cohesive force of a sand body is 0, the internal friction angle is less than 30 degrees, and the sand body is basically non-cemented and has certain fluidity. In the deeper position underground, the sandy soil body is subjected to larger soil pressure, so that the deep sandy soil is larger in tightness degree, can reach a medium-density or even compact state, and forms a hardened sandy soil layer.
The swinging cutter on the milling wheel of the double-wheel hydraulic milling drilling machine needs to cut blind areas, so that the swinging cutter seat and the cutter head are connected in a hinge mode, and compared with a fixed cutter seat, the cutting capacity is weakened. In order to eliminate such disadvantage, the embodiment of the utility model provides a set up a novel double round hydraulic milling drilling machine's milling head, as shown in fig. 1 and fig. 2, including 8 blade holders on the milling head, wherein there are 7 fixed blade holders 21 and 1 swing blade holder 31, all set up the drill bit on swing blade holder 31 goes up the pendulum sword 32 of fixed setting and the swing blade holder 31, pressure when with sharing the abolishing sandy soil layer that hardens, the cutting ability of reinforcing swing blade holder, and then promote the drilling speed.
The desert area mainly comprises aeolian sand which mainly comprises particles and fine particles, and the particle size is small (similar to the size of cement particles) and relatively uniform. Therefore, the cement slurry diffuses outside the groove section in the groove section, but cement particles cannot enter the sand layer because the cement particles are close to the sand diameter, so that the cement slurry can be quickly dehydrated near the wall of the groove section and then attached to the groove wall to form a thicker wall protecting slurry skin, and the thicker wall protecting slurry skin can be scraped on the milling head when the milling head moves up and down, so that a large amount of cement-soil binders are adhered to the milling head.
In order to prevent cement-soil combination from being adhered to the milling head to cause lifting difficulty, 4 rectangular thin steel plates with the thickness of 0.8cm are welded at the lower part of the gear box to be used as a fender, the fender mainly corresponds to cement-soil combination with high viscosity, and spring steel with good elasticity can be selected as a material. The width of the mud guard is about 10cm, the length of the mud guard is about 60cm, and the lower part of the mud guard is extended into the stirring range of the cutter seat and is about 10cm away from the surface of the side wall of the cutter head. The fender and the gear box are connected in a welded mode, the fender is welded on the lower edge of the gear box in a shielded welding mode, the bonding object on the cutter holder can rotate along with the rotation of the cutter head, and most of the bonding object can be scraped after the bonding object touches the fixed fender, so that the load of the milling head is reduced.
The mineral composition of aeolian sand is mainly quartz and feldspar, and hardness is great, and simultaneously, aeolian fine sand stratum compactness is great, and deep sand soil body lateral pressure is great in the underground, and in the milling process, the milling head is embedded into the sand soil body under the hydraulic drive by force, can produce violent friction with the sand soil body, and then causes great wearing and tearing to blade disc and blade holder.
The embodiment of the utility model provides a wear-resisting welding rod and the wear-resisting alloy strip that use the high rigidity on blade disc lateral wall surface weld out the strip protruding, wear-resisting strip promptly to weld out some form at the blade holder and weld out protruding, wear-resisting arch promptly meeting the soil face. The wear-resistant strips and the wear-resistant protrusions can protect the cutter head and the cutter seat by consuming the wear-resistant strips and the wear-resistant protrusions in severe friction. The length of the wear-resistant strips is consistent with the width of the cutter head, the wear-resistant strips are arranged on the cutter head in parallel, are spaced by 3-5cm, have the width of about 1cm and the height of 3mm, and are fully distributed on the surface of the side wall of the cutter head. The wear-resistant bulges are approximately circular bulges with the diameter of about 1cm and are intensively distributed on the soil facing surface of the cutter holder. In the welding process, use the protection to weld, under the prerequisite that does not harm blade disc and blade holder, weld wear-resisting alloy piece on blade disc and blade holder surface, increase the surface unevenness degree of blade disc and blade holder, and then reach the purpose of abrasionproof loss, reduce the loss of drill bit, blade holder, blade disc, reduce the cracked risk of blade holder.
Will the utility model discloses a milling head uses in elm city elm sun district Li Guliang reservoir removes dangerous processing engineering, in order to verify the utility model discloses milling head's performance. The project is located in Li Guliang reservoir near the Benzhan Baoxiang Cao beam of about 40km in northwest of elm city, and is a hydraulic project which takes reservoir danger removal and reinforcement as main construction content. The main construction content of the project is dam body reinforcement and seepage-proofing treatment project of a water retaining building, wherein the main dam seepage-proofing wall is a double-wheel hydraulic milling deep mixing cement soil seepage-proofing wall (the axial length is 730m, and the depth is 45 m), before improvement, the construction time of a single wall is 14 hours, a cutter head and a cutter seat are required to be maintained after drilling down is completed every time, the construction time after improvement is 8 hours, maintenance is carried out once every 3-5 walls, the maintenance cost is saved by more than 30 ten thousand yuan, and the construction period is saved by about 60 days.
After the milling head is applied to the engineering, all quality checks show that the engineering indexes meet the design requirements. The effect is good.
Although the present application has been described with reference to a few embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application as defined by the appended claims.
Claims (10)
1. A milling head of a double-wheel hydraulic milling drilling machine is characterized by comprising a cutter head, a fixed cutter assembly, a swinging cutter assembly and a first drill bit;
the fixed cutter assembly is arranged on the side wall of the cutter head and is driven by the cutter head to cut soil at the diameter extending direction of the cutter head;
the cutter swinging assembly is arranged on the side wall of the cutter head, swings along the axial direction of the cutter head, and is driven by the cutter head to cut soil in the axial direction of the cutter head;
the first drill bit is arranged on the cutter swinging assembly, and the tip end of the first drill bit faces the soil facing surface of the cutter swinging assembly.
2. A milling head for a two-wheeled hydraulic milling drill according to claim 1, wherein the pendulum tool assembly includes a pendulum tool holder and a pendulum tool;
the swing tool apron is hinged with the side wall of the cutter head;
the swinging cutter is arranged in the swinging cutter holder and swings along the axial direction of the cutter head;
the first drill bit is fixedly arranged on the swinging cutter, and the tip end of the first drill bit faces the soil facing surface of the swinging cutter.
3. A milling head for a two-wheeled hydraulic milling drill according to claim 2, wherein the pendulum cutter assembly further comprises a second drill bit;
the second drill bit is fixedly arranged on the swing cutter holder, and the tip of the second drill bit faces the soil facing surface of the swing cutter holder.
4. A milling head for a two-wheeled hydraulic milling drill according to claim 1, further comprising a mud flap;
one end of the mudguard is fixedly arranged on the outer wall of a gear box of the gear which drives the cutter head to move, and the other end of the mudguard is a first distance away from the side wall of the cutter head;
the fender is parallel to the fixed knife assembly and has a second distance with the fixed knife assembly.
5. A milling head for a two-wheeled hydraulic milling drill according to claim 1, further comprising wear strips;
the wear-resistant strips are arranged on the side wall of the cutter head.
6. A milling head for a two-wheeled hydraulic milling drill according to claim 5, wherein the wear strips extend in the same direction as the axis of the cutterhead;
the length of the wear-resistant strip is the same as the width of the cutter head;
the height of the wear-resistant strips is 3-5mm;
the interval between adjacent wear-resistant strips is 3-5cm.
7. A milling head for a two-wheeled hydraulic milling drill according to claim 5, wherein the fixed cutter assembly includes a fixed cutter seat and a third drill bit;
the fixed cutter holder is fixedly arranged on the side wall of the cutter head;
the third drill bit is fixedly arranged on the fixed cutter seat and used for cutting soil at the position of the diameter extending direction of the cutter disc.
8. A milling head for a two-wheeled hydraulic milling drill according to claim 7, wherein the stationary cutter assembly further includes a plurality of wear resistant projections;
the wear-resistant protrusion is arranged on the surface of the fixed cutter holder.
9. A milling head for a two-wheeled hydraulic milling drill according to claim 8, wherein the wear resistant protrusions are punctiform protrusions having a diameter of 0.8cm to 1.2 cm.
10. A milling head for a two-wheeled hydraulic milling drill according to claim 9, wherein the wear strips and the wear projections are of an alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222364901.1U CN218019423U (en) | 2022-09-06 | 2022-09-06 | Milling head of double-wheel hydraulic milling drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222364901.1U CN218019423U (en) | 2022-09-06 | 2022-09-06 | Milling head of double-wheel hydraulic milling drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218019423U true CN218019423U (en) | 2022-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222364901.1U Active CN218019423U (en) | 2022-09-06 | 2022-09-06 | Milling head of double-wheel hydraulic milling drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218019423U (en) |
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- 2022-09-06 CN CN202222364901.1U patent/CN218019423U/en active Active
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