CN114165248A - Cutter head assembly capable of realizing reducing through connecting rod - Google Patents
Cutter head assembly capable of realizing reducing through connecting rod Download PDFInfo
- Publication number
- CN114165248A CN114165248A CN202111333085.1A CN202111333085A CN114165248A CN 114165248 A CN114165248 A CN 114165248A CN 202111333085 A CN202111333085 A CN 202111333085A CN 114165248 A CN114165248 A CN 114165248A
- Authority
- CN
- China
- Prior art keywords
- cutter head
- main
- connecting rod
- assembly
- sliding seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/0874—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with rotary drilling heads having variable diameter
Abstract
The invention discloses a cutter head assembly for realizing reducing through a connecting rod, which comprises a main shaft, a jaw coupling, a main cutter head transmission hub, an auxiliary cutter head, a connecting rod, a main cutter head, a sliding seat assembly and a guide pillar, wherein the jaw coupling is positioned behind the auxiliary cutter head and is sleeved on the main shaft; the sliding seat assembly is connected with the main cutter head in a sliding mode through the guide pillar, two ends of the connecting rod are connected with the sliding seat assembly and the auxiliary cutter head respectively, and when the cutter head needs to be changed in diameter, the auxiliary cutter head drives the sliding seat assembly to extend outwards or contract inwards through the connecting rod along with rotation of the main shaft. The application of the reducing cutter head enables the retraction of underground trenchless equipment to be realized, the difficulty in overhauling the equipment is reduced, and the workload and the working hour for excavating a receiving well are saved; after the whole machine is returned and overhauled midway in excavation, the cutter head can be conveniently pushed to the front excavation position for the second time in a contraction state, and then the cutter head automatically extends to continue excavation.
Description
Technical Field
The invention relates to the technical field of development machines, in particular to a small-sized pure hard rock development machine, and particularly relates to a cutter head assembly capable of realizing diameter change through a connecting rod.
Background
At present, electrical and gas pipeline engineering for urban road and river crossing is increasing, and trenchless technology is widely applied.
Under the condition, the excavation of the receiving well needs a large amount of manpower, a large amount of working hours are consumed, the cutter is arranged on the cutter head, the whole excavation diameter is larger than that of equipment such as a rear barrel and the like, and the cutter head is difficult to withdraw according to the original path, so that the functions of automatically retracting the cutter head of the small pure hard rock heading machine and conveniently retracting the cutter head and secondarily propelling the cutter head to automatically extend the cutter head to conveniently excavate the small pure hard rock heading machine are of great significance.
The Chinese utility model discloses a pipe pushing jack cutter head (with the publication number of CN 212837821U) discloses a pipe pushing jack cutter head, but the cutter head needs to be retracted after being manually disassembled when being retracted, and the functions of automatically retracting the cutter head and automatically extending the cutter head after secondary propulsion under the condition that the excavation diameter is small and people cannot enter the operation are not provided.
The invention aims to provide a cutter head capable of realizing diameter change through a connecting rod, which is used for realizing two functions of automatically contracting the cutter head of a small-sized pure hard rock heading machine to facilitate retraction and secondarily propelling the automatically extending cutter head to facilitate secondary excavation. The difficulty and risk that the disassembly part needs to be manually retracted are reduced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the cutter head assembly for realizing diameter reduction through the connecting rod, the cutter head can be automatically contracted, the cutter head can be conveniently retracted and automatically extended by secondary propulsion, secondary excavation is convenient, and the difficulty and risk of manually detaching parts to retract are reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cutter head assembly for realizing diameter change through a connecting rod comprises a main shaft, a jaw coupling, a main cutter head transmission hub, an auxiliary cutter head, a connecting rod, a main cutter head, a sliding seat assembly and a guide pillar, wherein the main shaft is connected with the auxiliary cutter head through a spline; the sliding seat assembly is connected with the main cutter head in a sliding mode through the guide pillar, two ends of the connecting rod are connected with the sliding seat assembly and the auxiliary cutter head respectively, and when the cutter head needs to be reduced in diameter, the auxiliary cutter head drives the sliding seat assembly to extend outwards or contract inwards through the connecting rod along with the rotation of the main shaft; the guide post is fixed on the main cutter head.
Further, the connecting rod is a support with a radian.
Furthermore, the connecting rods, the sliding seat assemblies and the guide columns are at least 3 groups and are uniformly distributed on the main cutter head.
Furthermore, an outer gear ring of the jaw coupling is sleeved on the main shaft, and the inner gear ring is sleeved with the main cutter head transmission hub.
Furthermore, a space is reserved between each pair of external teeth and internal teeth of the jaw coupler, and the external teeth are in contact with or separated from the internal teeth along with the clockwise or anticlockwise rotation of the spindle.
Furthermore, the space between the external teeth and the internal teeth is a space in which the external teeth and the internal teeth move relatively within the range of 40 degrees of rotation of the main shaft.
Furthermore, the guide post is fixed on the main cutter head.
The invention has the following beneficial effects: under the condition that the excavation diameter is very small and people cannot enter the machine, the cutter head automatically contracts during or after the tunneling of the small-sized pure hard rock tunneling machine, so that the whole machine can be retracted and the reducing cutter head can be applied, the retraction of underground non-excavation equipment can be realized, and the machine has great significance for blind hole tunneling and other conditions that equipment needs to be retracted due to certain requirements during tunneling; for other tunnels, the difficulty of maintenance equipment is reduced, and the workload and the working time for excavating the receiving well are saved; after the whole machine is returned and overhauled midway in excavation, the cutter head can be conveniently pushed to the front excavation position for the second time in a contraction state, and then the cutter head automatically extends to continue excavation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the general structure of a cutter head assembly for realizing diameter change by a connecting rod according to an embodiment of the invention;
FIG. 2 is a schematic view of the cutter head in an initial contracted state 1;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a sectional view taken along section A-A of FIG. 2 showing the jaw coupling portion (with the cutter head retracted);
FIG. 5 is a schematic view of the cutter head in an initial state of extension;
FIG. 6 is a left side view of FIG. 5;
FIG. 7 is a section view taken along line A-A of FIG. 5 showing the jaw coupling portion (with the impeller extended);
description of reference numerals: the device comprises a main shaft 1, a tooth-embedded coupler 2, an external gear ring, a tooth-embedded coupler 3, an internal gear ring, a main cutter head 4, a main cutter head transmission hub 5, an auxiliary cutter head 6, a connecting rod 7, a main cutter head 8, a sliding seat assembly 9 and a guide pillar.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In this application, the terms "upper", "lower", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
As shown in fig. 1 to 7, the present embodiment is a cutter head assembly for realizing diameter reduction by a connecting rod, and the cutter head assembly includes a main shaft 1, a jaw coupling, a main cutter head transmission hub 4, an auxiliary cutter head 5, a connecting rod 6, a main cutter head 7, a slide seat assembly 8 and a guide post 9, wherein the main shaft 1 is connected with the auxiliary cutter head 5 by a spline, the jaw coupling is located behind the auxiliary cutter head 5 and is sleeved on the main shaft 1, the jaw coupling is sleeved on the main cutter head transmission hub 4, and the main cutter head transmission hub 4 is connected with the main cutter head 7; the sliding seat assembly 8 is connected on the main cutter head 7 in a sliding mode through a guide post 9, two ends of the connecting rod 6 are connected with the sliding seat assembly 8 and the auxiliary cutter head 5 respectively, and when the cutter head is subjected to diameter changing, the connecting rod 6 drives the sliding seat assembly 8 to extend outwards or contract inwards along with the rotation of the main shaft 1; the guide post 9 is fixed on the main cutter head 7.
The jaw coupling is provided with an outer gear ring and an inner gear ring, the outer gear ring 2 is sleeved on the main shaft 1, and the inner gear ring 3 is sleeved with the main cutter head transmission hub 4.
In some embodiments, the link 6 is a support having an arc, as shown in fig. 3 and 6. The connecting rod 6 with the radian is not easy to collide with other components in the rotating process, and a narrow space is effectively utilized.
In some embodiments, the connecting rods 6, the carriage assemblies 8 and the guide posts 9 are at least 3 groups, evenly distributed on the circumferential surface of the main cutter disc 7, and the number of the connecting rods 6, the carriage assemblies 8 and the guide posts 9 is preferably 4 in fig. 3 and 6, and one group is arranged at every 90 ° on the surface of the main cutter disc 7.
And a space is reserved between each pair of external teeth and internal teeth of the jaw coupler, and the external teeth are in contact with or separated from the internal teeth along with the clockwise or anticlockwise rotation of the main shaft.
Furthermore, the space between the external teeth and the internal teeth is a space in which the external teeth and the internal teeth move relatively within the range of 40 degrees of rotation of the main shaft.
The movement of the cutterhead assembly of the present embodiment when in operation is as follows: when the cutter head is to be contracted in a fully extended state, the cutter head is in a state shown in fig. 3, at the moment, one surface of each pair of external teeth clockwise contacts one surface of each pair of internal teeth anticlockwise, firstly, the main shaft 1 rotates clockwise, the inner gear ring 3 of the jaw coupling is separated from the contact with the outer gear ring 2, and the main cutter head transmission hub 4 sleeved outside the inner gear ring 3 stops rotating. When the spindle 1 rotates clockwise, the connecting rod 6 drives the sliding seat assembly 8 to slide along the guide post 9, and the sliding seat assembly gradually contracts to a preset contraction position in the direction of the circle center, so that the outer contour of the cutter head assembly is reduced, and the overall contour contraction of the cutter head tool is realized. After the main shaft 1 rotates to 40 degrees, the sliding seat assembly 8 contracts in place, the cutter head contracts to the minimum diameter, the inner gear ring and the outer gear ring of the jaw coupling are in contact again, at the moment, the anticlockwise surface of the outer teeth is in contact with the clockwise surface of the inner teeth, and the main shaft 1 drives the main cutter head and the auxiliary cutter head to rotate simultaneously through the jaw coupling and the shaft end spline to exit from a tunneling state.
When the cutter head is in a fully contracted state and is about to extend, the cutter head is in a state shown in fig. 5 to 7, the anticlockwise surface of the external teeth is contacted with the clockwise surface of the internal teeth, the spindle 1 rotates anticlockwise, the internal teeth and the external teeth of the jaw coupler are separated from contact, and the main cutter head transmission hub 4 stops rotating; when the spindle 1 rotates anticlockwise, the connecting rod 6 drives the sliding seat assembly 8 to extend to a preset fully-extending position gradually towards the direction far away from the circle center, the main cutter disc 7 is in a fully-extending state, namely a full-size excavation state, the outer contour of the cutter disc is enlarged, and the overall contour extension of the cutter disc cutter is realized. After the main shaft 1 rotates to 40 degrees, the sliding seat assembly 8 extends to the right position, the cutter head extends to the maximum diameter, the inner gear ring and the outer gear ring of the jaw coupling are in contact again, at the moment, the clockwise surface of the outer teeth is in contact with the anticlockwise surface of the inner teeth, the main shaft 1 drives the main cutter head transmission hub 4 to rotate anticlockwise through the jaw coupling and the shaft end spline, and the main cutter head and the auxiliary cutter head rotate simultaneously to enter a tunneling state.
In other embodiments, the cutter head can also be contracted when the main shaft 1 rotates anticlockwise, and the cutter head can be expanded when the main shaft 1 rotates clockwise.
It will be appreciated by those skilled in the art that the above-described range of 40 ° of rotation of the spindle 1 is for illustrative purposes only, and that other suitable angles are possible. The cutter head reducing is realized through the connecting rod, and two functions of automatically retracting the cutter head and conveniently returning and secondarily propelling the automatically extending cutter head of the small-sized pure hard rock heading machine and conveniently excavating for the second time are realized.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. A cutter head assembly for realizing diameter change through a connecting rod is characterized by comprising a main shaft, a jaw coupling, a main cutter head transmission hub, an auxiliary cutter head, a connecting rod, a main cutter head, a sliding seat assembly and a guide pillar, wherein the main shaft is connected with the auxiliary cutter head through a spline; the sliding seat assembly is in sliding connection with the main cutter head through the guide pillar, two ends of the connecting rod are respectively connected with the sliding seat assembly and the auxiliary cutter head, and when the cutter head needs to be reduced in diameter, the auxiliary cutter head drives the sliding seat assembly to extend outwards or contract inwards through the connecting rod along with rotation of the main shaft.
2. The cutterhead assembly of claim 1, wherein the connecting rods are arcuate supports.
3. A cutterhead assembly, according to claim 1 or 2, wherein the connecting rods, the carriage assembly and the guide posts are at least 3 groups, evenly distributed on the main cutterhead.
4. The cutter head assembly of claim 1, wherein an outer gear ring of the jaw coupling is sleeved on the main shaft, and an inner gear ring is sleeved outside the main cutter head transmission hub.
5. The cutterhead assembly of claim 1, wherein a space is left between each pair of external teeth and internal teeth of the jaw coupling, the external teeth being in contact with or out of contact with the internal teeth as the spindle is rotated clockwise or counterclockwise.
6. The cutterhead assembly of claim 5, wherein the space between the external teeth and the internal teeth is a space in which the external teeth and the internal teeth are relatively movable within 40 ° of rotation of the spindle.
7. The cutterhead assembly of claim 1, wherein the guide post is fixed to the main cutterhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111333085.1A CN114165248A (en) | 2021-11-11 | 2021-11-11 | Cutter head assembly capable of realizing reducing through connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111333085.1A CN114165248A (en) | 2021-11-11 | 2021-11-11 | Cutter head assembly capable of realizing reducing through connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114165248A true CN114165248A (en) | 2022-03-11 |
Family
ID=80478784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111333085.1A Pending CN114165248A (en) | 2021-11-11 | 2021-11-11 | Cutter head assembly capable of realizing reducing through connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114165248A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114937789A (en) * | 2022-06-07 | 2022-08-23 | 烟台东德实业有限公司 | Utilize shaft coupling to open hydrogen circulating pump of ice |
| CN116717258A (en) * | 2023-08-07 | 2023-09-08 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Shaft development machine cutterhead assembly and shaft development machine |
-
2021
- 2021-11-11 CN CN202111333085.1A patent/CN114165248A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114937789A (en) * | 2022-06-07 | 2022-08-23 | 烟台东德实业有限公司 | Utilize shaft coupling to open hydrogen circulating pump of ice |
| CN116717258A (en) * | 2023-08-07 | 2023-09-08 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Shaft development machine cutterhead assembly and shaft development machine |
| CN116717258B (en) * | 2023-08-07 | 2023-10-17 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Shaft development machine cutterhead assembly and shaft development machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114165248A (en) | Cutter head assembly capable of realizing reducing through connecting rod | |
| CN104533435B (en) | A kind of swing cutter head type rectangular cross section push-bench | |
| CN108729922B (en) | Push bench and retractable push bench construction method | |
| CN204783026U (en) | It prevents rotary device initiatively to articulate formula shield structure single cylinder hydro -cylinder | |
| CN105386736A (en) | Tool used for taking casing underground at fixed point and using method | |
| CN109458183A (en) | Expand former tunnel diameter and completes the development machine and its construction method of tunnel-liner | |
| CN110030009A (en) | A kind of top pick machine and its construction method for long distance driving | |
| CN214384153U (en) | Open-type TBM shield structure | |
| CN204312078U (en) | A kind of swing cutter head type rectangular cross section push-bench | |
| CN111706348B (en) | Municipal pipe jacking structure and construction method thereof | |
| CN211950339U (en) | Drilling tool for expanding head of anti-floating anchor rod | |
| CN115478785B (en) | Drilling device with automatic adjusting function and drilling method | |
| CN218030201U (en) | Main machine of full-face tunneling machine and full-face tunneling machine | |
| CN211648164U (en) | Shield machine | |
| CN215632726U (en) | Short fuselage power head structure | |
| CN214247369U (en) | Pore-creating, grouting and anchoring integrated working device | |
| CN205100987U (en) | Rectangle tunnelling head | |
| CN112377199A (en) | Top shield machine | |
| CN209179769U (en) | A kind of telescopic device for cutter head of shield machine | |
| CN209354133U (en) | A kind of development machine for expanding former tunnel diameter and completing tunnel-liner | |
| CN116517568B (en) | Variable diameter device for full-section hard-rock tunnel boring machine, boring machine and using method | |
| CN207393122U (en) | A kind of combined type reaming bit | |
| CN111365000B (en) | Main driving structure applied to super-large-diameter shaft heading machine | |
| CN106640109B (en) | A kind of universal tunneling equipment for abnormity and circular cross section | |
| CN217354382U (en) | Tunnel boring cutter device and tunnel boring equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |