CN213743414U - Heavy-load replaceable advanced cutter support for shield cutter - Google Patents
Heavy-load replaceable advanced cutter support for shield cutter Download PDFInfo
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- CN213743414U CN213743414U CN202022476382.9U CN202022476382U CN213743414U CN 213743414 U CN213743414 U CN 213743414U CN 202022476382 U CN202022476382 U CN 202022476382U CN 213743414 U CN213743414 U CN 213743414U
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Abstract
The utility model relates to the field of a pilot cutter support for a cutter head of a shield machine, in particular to a heavy-load replaceable pilot cutter support for a shield cutter, which comprises a first fixed support, a support shaft, a pilot cutter support body and a second fixed support, the first fixing support and the second fixing support are structural bodies, the first fixing support is provided with the mounting through hole I, the utility model can bear larger stratum and the extrusion of the shield machine in the using process, the anti-deformation capability of the advance cutter support is greatly improved, the replaceable advance cutter support of the utility model has higher strength, the stability of the structure can be still ensured under the condition that the large-diameter shield cutter head carries out large-thrust construction, the risk and the cost caused by shutdown of the shield construction due to cutter problems can be effectively reduced, and the construction operation requirements of the shield machine are met.
Description
Technical Field
The utility model belongs to the technical field of shield constructs quick-witted blade disc and uses preceding sword support field, especially relates to a shield constructs removable preceding sword support of heavy load for cutter.
Background
The shield cutterhead is a cutting mechanism of the full-face tunneling machine (shield machine), has rock breaking and loading functions, and is the diameter of the full-face tunneling machine (shield machine), generally 2.5-10 m. When the cutter head rotates and is pressed to a working surface, the disc-shaped hob on the cutter head rolls and breaks rock, and broken rock slag falls to the bottom of the working surface and is shoveled by a bucket at the outer edge of the cutter head and lifted to a slag discharging groove to be discharged. The working surface of the ordinary cutter head is formed by a plane and an arc transition surface, the structure is simple, the manufacture is easy, the cutter is convenient to arrange, and the cutter is suitable for rock roadways with rock stratum joint development, but the stability of the machine during working is poor, and the service life of the cutter is not good. The rock slag discharging port of the thin plane cutter head is positioned in front of the large bearing, the large gear ring and the seal thereof, the cutter head is thin, and the slag discharging port is far away from the working surface of the cutter head, so that slag is not easy to accumulate. The slag discharging function is strong, but the slag discharging hole is positioned in front of the large bearing and the seal thereof, the large bearing is easy to be polluted, and the receiving groove of the conveyor stretches into the inner cavity of the cutter head, so that the radial size of the large bearing is large. The slag-discharging inner cavity of the cutter head can also be used as a space for replacing cutters. The cutter head is made to be changed from the inner cavity, so that the tool changing work is not influenced by the geological condition of the rock roadway, and the tool changing and the checking are safer. The slag discharging opening of the thick plane cutter head is positioned behind the large bearing, the large gear ring, the large seal and the like, and the cutter head is thick. The scraper bucket is distributed on the outer edge of the cutter head, the axial size of the scraper bucket is long, the rock slag transportation route is long, slag accumulation on a scraper bucket slag sliding slope is easily caused, a slag discharge opening is blocked in serious cases, the radial size of a large bearing of the thick cutter head is small, and the inner cavity cannot be used for tool changing.
The replaceable preceding cutter of the shield machine is arranged at the position of the hob, the hob is replaced in stratums such as soft soil, soft sand, sand and pebbles, the current urban tunnel is more and more constructed, and along with the application of the shield machine with the super-large diameter, the performance requirement of the corresponding tool is higher and higher.
Disclosure of Invention
The utility model aims at providing a shield constructs removable sword support in advance of heavy load for cutter, it can bear great stratum and the extrusion of shield structure machine in the use, has greatly improved the resistance to deformation ability of sword support in advance, has satisfied the user demand of shield structure machine cutter head tunnelling in-process.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a heavy-load replaceable advance cutter support for a shield cutter comprises a first fixed support, a support shaft, a advance cutter support body and a second fixed support, the first fixing support and the second fixing support are structural bodies, the first fixing support is provided with an installation through hole I, the second fixing bracket is provided with a mounting through hole II, the prior cutter bracket body is provided with a mounting through hole III, the first fixing bracket and the second fixing bracket are symmetrically arranged at two side parts of the prior knife bracket body, the supporting shaft sequentially penetrates through the mounting through hole I, the mounting through hole III and the mounting through hole II and is respectively connected with the first fixing bracket, the traveling cutter bracket body and the second fixing bracket, the first fixed bolster pass through the welding mode with one side tip of back shaft and link to each other, the second fixed bolster pass through the welding mode with the opposite side tip of back shaft and link to each other.
The supporting shaft is of a cylinder structure with a smooth outer wall, and the mounting through hole I, the mounting through hole III and the mounting through hole II are of circular through hole structures with smooth inner walls.
The diameters of the mounting through holes I, the mounting through holes III and the mounting through holes II are larger than that of the supporting shaft.
The cutter support comprises a first cutter head support body and a second cutter head support body, wherein the first cutter head support body is provided with a first cutter head mounting part and a rotating support part, the upper surface of the first cutter head mounting part is of a smooth and flat plane structure, a connecting key mounting groove is formed in the middle of the plane structure, cutter head connecting and mounting through holes are symmetrically formed in two sides of the connecting key mounting groove, the rotating support part is a semicircular structure, and the mounting through hole III is formed in the rotating support part.
And threaded mounting holes are formed in the lower parts of the first fixing support and the second fixing support.
The supporting shaft is provided with a fixed separation blade at one end, the fixed separation blade is fixedly connected with the end of the supporting shaft, the fixed separation blade is a circular flaky structure body, and the diameter of the fixed separation blade is respectively greater than the diameter of the installation through hole I and the diameter of the installation through hole II.
The supporting shaft is provided with a circular connecting check ring at the end part at the other end, a circular through hole is formed in the connecting check ring, and the diameter of the circular through hole is larger than that of the supporting shaft.
The preceding tool bit mounting part is provided with a plurality of connecting key mounting grooves.
And a bell mouth-shaped guide opening is formed in the outer edge of any one of the mounting through holes I and II.
The utility model has the advantages that: the utility model discloses overall structure designs the science, and production and processing technology is simple and convenient, the utility model discloses mainly through the back shaft and the installation setting of sword support body in advance, make the utility model discloses can bear great stratum and the extrusion of shield structure machine in the use, greatly improve the resistance to deformation ability of sword support in advance, specific theory, the utility model discloses a removable sword support in advance has higher intensity, still can guarantee the stability of structure under the condition that major diameter shield blade disc carries out the high thrust construction, can effectively improve the life and the used number of times of removable sword in advance, can effectively reduce the risk that the shield structure construction caused because of cutter problem shut down, cost, satisfied the construction operation demand of shield structure machine.
Drawings
Fig. 1 is a schematic overall front view structure of the present invention;
FIG. 2 is a schematic side view of the whole structure of the present invention;
fig. 3 is a schematic top view of the whole structure of the present invention;
fig. 4 is a schematic structural view of a first fixing bracket and a second fixing bracket in the present invention;
fig. 5 is a schematic side view of the first fixing bracket and the second fixing bracket of the present invention;
fig. 6 is a schematic front view of the advanced knife holder body of the present invention;
fig. 7 is a schematic side view of the advancing knife holder body according to the present invention;
fig. 8 is a schematic top view of the advanced knife holder body according to the present invention;
fig. 9 is a schematic structural view of the support shaft of the present invention;
fig. 10 is a schematic structural view of a first fixing bracket and a second fixing bracket according to embodiment 3 of the present invention;
fig. 11 is a schematic side view of a first fixing bracket and a second fixing bracket according to embodiment 3 of the present invention;
the reference numbers in the figures are: 1-a first fixing support, 2-a support shaft, 3-a leading cutter support body, 4-a second fixing support, 5-installation through holes I, 6-installation through holes II, 7-installation through holes III, 8-a leading cutter head installation part, 9-a rotation supporting part, 10-a plane structure, 11-a connecting key installation groove, 12-a cutter head connecting installation through hole, 13-a threaded installation hole, 14-a fixing baffle and 15-a circular connecting retainer ring.
Detailed Description
Specific example 1: the core of the utility model is to provide a shield constructs removable sword support in advance of heavy load for cutter, its mainly through back shaft 2 and the installation setting of sword support body 3 in advance, make the utility model discloses can bear great stratum and the extrusion of shield structure machine in the use, greatly improved the resistance to deformation ability of sword support in advance, for making this technical field's personnel understand better the technical scheme of the utility model, it is right to combine description drawing and concrete implementation mode below the utility model discloses do further detailed description, it needs to explain, is called "being fixed in" or "setting up in" another component when the component, it can be directly or indirectly on another component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in this specification to denote orientation are used with reference to a particular structure shown in the drawings, and do not constitute a limitation on the structure. As shown in the attached drawings 1-9 of the specification, a heavy-duty replaceable pilot cutter holder for a shield cutter mainly comprises a first fixing support 1, a support shaft 2, a pilot cutter support body 3 and a second fixing support 4, wherein the first fixing support 1 and the second fixing support 4 for supporting and installing the pilot cutter support body 3 are body structures, a mounting through hole I5 is formed on the first fixing support 1, a mounting through hole II6 is formed on the second fixing support 4, a mounting through hole III7 is formed on the pilot cutter support body 3 for mounting and supporting a pilot cutter head, the first fixing support 1 and the second fixing support 4 are symmetrically arranged at two side parts of the pilot cutter support body 3, the support shaft 2 for supporting the pilot cutter support body 3 sequentially penetrates through the mounting through hole I5, the mounting through hole III7 and the mounting through hole II6 and is respectively connected with the first fixing support 1, the pilot cutter support body 3 and the second fixing support 4, the supporting shaft 2 is a cylinder structure with smooth outer wall, the mounting through hole I5, the mounting through hole III7 and the mounting through hole II6 are circular through hole structures with smooth inner walls, the diameters of the mounting through hole I5, the mounting through hole III7 and the mounting through hole II6 are all larger than the diameter of the supporting shaft 2, therefore, the traveling knife bracket body 3 can realize the rotating function on the outer wall of the supporting shaft 2, the traveling knife bracket body 3 is composed of a prior knife head mounting part 8 and a rotating supporting part 9, the upper surface of the prior knife head mounting part 8 is a smooth and flat plane structure 10, the middle part of the plane structure 10 is provided with a plurality of connecting key mounting grooves 11, the two sides of the connecting key mounting grooves 11 are symmetrically provided with knife head connecting mounting through holes 12 for mounting connecting studs for connecting the prior knife head, the rotating supporting part 9 is a semicircular structure body, the mounting through hole III7 is arranged on the rotating supporting part 9, in the specific working process, the pilot cutter support body 3 is of a large-size structure, the thickness and the size are the same as the height of the first fixing support 1 and the height of the second fixing support 4, the pilot cutter support body and the support shaft 2 bear the reaction force of a palm face together, in the production and processing process, the first fixing support 1, the support shaft 2, the pilot cutter support body 3 and the second fixing support 4 are manufactured into semi-finished products through blank forging, rough machining and heat treatment, and then the support shaft 2, the first fixing support 1 and the second fixing support 4 are formed through anti-falling fastening (namely, the end part of one side of the first fixing support 1 and the end part of one side of the support shaft 2 are connected in a welding mode, and the end part of the other side of the second fixing support 4 and the end part of the support shaft 2 are connected in a welding mode).
Specific example 2: in order to make the utility model discloses better result of use has when specifically using, on the basis of above-mentioned embodiment 1, as shown in the specification figure 9, circular fixed separation blade 14 is installed to a side tip on back shaft 2, fixed separation blade 14 links to each other with the end fixing of back shaft 2, the diameter side of fixed separation blade 14 piece is greater than the diameter of installation through-hole I5 and installation through-hole II6 respectively, install circular connection retaining ring 15 on the other end tip on back shaft 2, circular through-hole has been seted up in circular connection retaining ring 15, circular connection retaining ring 15 is installed on back shaft 2 through circular through-hole, when specifically installing, the fixed separation blade 14 piece and the circular connection retaining ring 15 that operating personnel accessible welding back shaft 2 both ends make back shaft 2 and first fixed bolster 1 and the connection of second fixed bolster 4 more firm.
Specific example 3: in order to facilitate the penetration of the support shaft on the first fixing support 1 and the second fixing support 4, as shown in the accompanying drawings 10 and 11 of the specification, a flared guide opening is formed in the outer edge of any one of the mounting through holes I and II, and the flared guide opening can guide the support shaft 2 during mounting. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (9)
1. A heavy-load replaceable pilot cutter support for a shield cutter is characterized by comprising a first fixed support, a support shaft, a pilot cutter support body and a second fixed support, the first fixing support and the second fixing support are structural bodies, the first fixing support is provided with an installation through hole I, the second fixing bracket is provided with a mounting through hole II, the prior cutter bracket body is provided with a mounting through hole III, the first fixing bracket and the second fixing bracket are symmetrically arranged at two side parts of the prior knife bracket body, the supporting shaft sequentially penetrates through the mounting through hole I, the mounting through hole III and the mounting through hole II and is respectively connected with the first fixing bracket, the traveling cutter bracket body and the second fixing bracket, the first fixed bolster pass through the welding mode with one side tip of back shaft and link to each other, the second fixed bolster pass through the welding mode with the opposite side tip of back shaft and link to each other.
2. The heavy-duty replaceable leading tool holder according to claim 1, wherein the supporting shaft is a cylindrical structure with a smooth outer wall, and the mounting through holes I, III and II are circular through holes with a smooth inner wall.
3. The heavy-duty replaceable leading tool holder according to claim 1, wherein the diameters of the mounting through-holes I, III and II are larger than the diameter of the support shaft.
4. The heavy-duty replaceable leading tool holder according to claim 1, wherein the leading tool holder body comprises a leading tool bit mounting portion and a rotation supporting portion, the upper surface of the leading tool bit mounting portion is a smooth and flat planar structure, a connecting key mounting groove is formed in the middle of the planar structure, tool bit connecting and mounting through holes are symmetrically formed in two sides of the connecting key mounting groove, the rotation supporting portion is a semicircular structure, and the mounting through hole III is formed in the rotation supporting portion.
5. The heavy-duty replaceable leading tool holder of claim 1, wherein the first and second fixing brackets have threaded mounting holes at lower portions thereof.
6. The heavy-duty replaceable leading tool holder according to claim 1, wherein a fixed blocking piece is mounted at one end of the supporting shaft, the fixed blocking piece is fixedly connected with the end of the supporting shaft, the fixed blocking piece is a circular sheet-shaped structural body, and the diameter of the fixed blocking piece is respectively larger than the diameter of the mounting through hole I and the diameter of the mounting through hole II.
7. The heavy-duty replaceable leading tool holder according to claim 1, wherein a circular connecting retainer is mounted on the other end of the supporting shaft, and a circular through hole is formed in the connecting retainer, and the diameter of the circular through hole is larger than that of the supporting shaft.
8. The heavy-duty replaceable leading tool holder according to claim 4, wherein the leading tool bit mounting portion has a plurality of connecting key mounting grooves formed therein.
9. The heavy-duty replaceable leading tool holder according to claim 1, wherein a flared guide opening is formed in an outer edge of either one of the mounting through holes I and II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022476382.9U CN213743414U (en) | 2020-11-01 | 2020-11-01 | Heavy-load replaceable advanced cutter support for shield cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022476382.9U CN213743414U (en) | 2020-11-01 | 2020-11-01 | Heavy-load replaceable advanced cutter support for shield cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213743414U true CN213743414U (en) | 2021-07-20 |
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ID=76818237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022476382.9U Active CN213743414U (en) | 2020-11-01 | 2020-11-01 | Heavy-load replaceable advanced cutter support for shield cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213743414U (en) |
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2020
- 2020-11-01 CN CN202022476382.9U patent/CN213743414U/en active Active
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