CN215979384U - Scraper for shield machine - Google Patents
Scraper for shield machine Download PDFInfo
- Publication number
- CN215979384U CN215979384U CN202121780817.7U CN202121780817U CN215979384U CN 215979384 U CN215979384 U CN 215979384U CN 202121780817 U CN202121780817 U CN 202121780817U CN 215979384 U CN215979384 U CN 215979384U
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- base
- scraper
- baffle
- limiting
- bolt hole
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Abstract
The utility model provides a scraper for a shield machine, relates to the technical field of shield machines, and solves the problems that a cutter is inconvenient to replace and a bolt hole for installing the cutter is short of protection; the base is provided with the sliding groove, the baffle is arranged in the sliding groove, and the baffle can shield the bolt hole, so that sundries are prevented from entering the bolt hole when the shield tunneling machine is in construction, and the work efficiency is prevented from being delayed due to the sundries when a cutter is replaced; the pressing block is connected on the base in a sliding mode, the pressing block is pressed to drive the baffle to move towards the position far away from the bolt hole, and therefore opening and closing of the bolt hole by the baffle are convenient to control; a limiting mechanism is arranged between the base and the cutter head, so that the cutter base is limited by the limiting mechanism when the cutter is replaced, the base is fixed on the cutter head by using a bolt by a worker, and the labor intensity of the worker is reduced; set up the ring board on pressing the piece, can avoid pressing the piece from the holding tank roll-off on the base.
Description
Technical Field
The utility model relates to the technical field of shield tunneling machines, in particular to a scraper for a shield tunneling machine.
Background
A shield machine is a tunnel boring machine using a shield method. The shield construction method is that a tunnel is constructed and laid by a heading machine while heading, and the shield is a supportive segment, which is different from an open construction method.
Internationally, the generalized shield machine can also be used for rock strata, and is only different from an open type non-shield method tunnel boring machine. In China, the tunnel boring machine used for the soft soil stratum is customarily called a narrow shield machine, and the tunnel boring machine used for the rock stratum is called a narrow TBM.
The shield machine is generally classified into a hand-digging type shield, an extrusion type shield, a semi-mechanical type shield, local air pressure and global air pressure, a mechanical type shield chest-opening type cutting shield, an air pressure type shield, a slurry pressure type shield, an earth pressure balance shield, a mixed type shield and a special type shield according to the working principle.
The construction working condition of the shield machine is generally severe, the abrasion of the cutter is inevitable, the cutter is often required to be replaced in the construction process, most of the cutters are fixed on the cutter head through bolts, impurities easily enter the gaps of the bolt holes in the construction process, and the bolts are difficult to detach when the cutters are replaced; when the cutter is arranged on the cutter head, the limit is lacked, and workers need to fasten the bolt while stabilizing the cutter, so that the operation is inconvenient; therefore, a need exists for a shield tunneling machine tool to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, the utility model discloses a scraper for a shield machine, which adopts the technical scheme that the scraper comprises a cutter disc, a base and the scraper, wherein the base is arranged on the cutter disc through a bolt, and the scraper is arranged on the base; the base is an L-shaped block and comprises a transverse block and a vertical block, an installation groove is formed in the cutter head, the transverse block is connected in the installation groove in a sliding mode, a bolt hole is formed in the transverse block, a limiting mechanism is further arranged between the transverse block and the cutter head, and the scraper is arranged on the vertical block; the base is further provided with a sliding groove, the sliding groove is communicated with the bolt hole, a baffle is connected in the sliding groove in a sliding mode, a compression spring is installed between the baffle and the sliding groove in a pressing mode, a containing groove is further formed in the base and communicated with the sliding groove, a pressing block is connected in the containing groove in a sliding mode and connected with the baffle in a sliding mode, the sliding groove is formed in the base, the baffle is arranged in the sliding groove, the bolt hole can be shielded by the baffle, the situation that sundries enter the bolt hole when the shield machine is in construction is avoided, and the situation that work efficiency is delayed due to the fact that sundries exist when a cutter is replaced is avoided.
As a preferred technical scheme of the utility model, the limiting mechanism comprises a limiting spring and a limiting pin, a clamping groove is formed in the side wall of the mounting groove, the limiting spring and the limiting pin are arranged in the clamping groove, a limiting groove which is matched with the limiting pin in size and corresponds to the limiting pin in position is formed in the base, and the limiting mechanism is arranged between the base and the cutter head, so that the cutter base is limited by the limiting mechanism when a cutter is replaced, a worker can fix the base on the cutter head by using a bolt, and the labor intensity of the worker is reduced.
As a preferable technical scheme of the utility model, the limiting pin comprises a cylindrical end and a hemispherical end, the limiting spring is pressed between the cylindrical end and the clamping groove, and the limiting groove is matched with the hemispherical end in size and corresponds to the hemispherical end in position.
As a preferable technical scheme of the utility model, a round angle is arranged at the contact end of the base and the limit pin in an inverted mode.
As a preferable technical scheme of the utility model, the baffle is an L-shaped plate and comprises a transverse plate and a vertical plate, the vertical plate is connected with the pressing block in a sliding mode, the transverse plate corresponds to the bolt hole, the pressing block is connected on the base in a sliding mode, the pressing block is driven to move towards the position far away from the bolt hole by pressing the pressing block, and the opening and closing of the bolt hole by the baffle are conveniently controlled.
As a preferred technical scheme of the utility model, the press block is further provided with a ring plate, the ring plate is connected with the accommodating groove in a sliding manner, and the press block is provided with the ring plate, so that the press block can be prevented from sliding out of the accommodating groove on the base.
The utility model has the beneficial effects that: according to the utility model, the base is provided with the chute, and the baffle is arranged in the chute, so that the baffle can shield the bolt hole, the situation that sundries enter the bolt hole when the shield machine is in construction is avoided, and the situation that the work efficiency is delayed due to the sundries when a cutter is replaced is avoided; the pressing block is connected on the base in a sliding mode, the pressing block is pressed to drive the baffle to move towards the position far away from the bolt hole, and therefore opening and closing of the bolt hole by the baffle are convenient to control; set up stop gear between base and blade disc, be convenient for when changing the cutter, carry on spacingly through stop gear to the cutter base, the staff of being convenient for uses the bolt to fix the base on the blade disc, reduces that this is to intensity of labour of staff.
Furthermore, the press block is provided with the ring plate, so that the press block can be prevented from sliding out of the accommodating groove in the base.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a base structure according to the present invention;
FIG. 3 is an enlarged view of the utility model at A.
In the figure: 1-cutter head, 2-base, 3-scraper, 4-baffle, 5-pressing block, 6-ring plate, 7-compression spring, 8-chute, 9-clamping groove, 10-limiting spring, 11-limiting pin and 12-holding groove.
Detailed Description
Example 1
As shown in fig. 1 to 3, the utility model discloses a scraper for a shield tunneling machine, which adopts the technical scheme that the scraper comprises a cutter disc 1, a base 2 and a scraper 3, wherein the base 2 is arranged on the cutter disc 1 through bolts, the scraper 3 is arranged on the base 2, and the scraper 3 is welded on the base 2; the base 2 is an L-shaped block and comprises a transverse block and a vertical block, an installation groove is formed in the cutter head 1, the transverse block is connected with the installation groove in a sliding mode, bolt holes are formed in the transverse block and the cutter head 1, a limiting mechanism is further arranged between the transverse block and the cutter head 1, the scraper 3 is arranged on the vertical block, grooves matched with the scraper 3 in size are formed in the vertical block, and a plurality of groups of scrapers 3 are arranged; still seted up spout 8 on the base 2, spout 8 with the bolt hole intercommunication, sliding connection has baffle 4 in the spout 8, baffle 4 can with the bolt hole seals, baffle 4 with compression spring 7 has been pressed between the spout 8, holding tank 12 has still been seted up on the base 2, holding tank 12 with spout 8 intercommunication, sliding connection has according to piece 5 in the holding tank 12, according to piece 5 with baffle 4 sliding connection.
As a preferred technical scheme of the present invention, the limiting mechanism includes a limiting spring 10 and a limiting pin 11, a clamping groove 9 is formed on a side wall of the mounting groove, the limiting pin 11 is slidably connected in the clamping groove 9, the compression spring 10 is press-fitted between the limiting pin 11 and the clamping groove 9, and a limiting groove which is matched with the limiting pin 11 in size and corresponds to the limiting pin in position is formed on the base 2.
As a preferable technical scheme of the utility model, the limit pin 11 comprises a cylindrical end and a hemispherical end, the limit spring 10 is pressed between the cylindrical end and the clamping groove 9, and the limit groove is matched with the hemispherical end in size and corresponds to the hemispherical end in position.
As a preferred technical solution of the present invention, a rounded corner is formed at a contact end of the base 2 and the limit pin 11, and when the rounded corner contacts the limit pin 11, the limit pin 11 can be more easily slid into the slot 9.
As a preferred technical solution of the present invention, the baffle 4 is an L-shaped plate, and includes a horizontal plate and a vertical plate, the vertical plate is slidably connected to the pressing block 5, the horizontal plate corresponds to the bolt hole, and the width of the horizontal plate is greater than the diameter of the bolt hole.
As a preferred technical solution of the present invention, the button block 5 is further provided with a ring plate 6, the ring plate 6 and the button block 5 are welded or bonded, and the ring plate 6 is slidably connected to the accommodating groove 12.
The working principle of the utility model is as follows: when the base 2 is installed in place, the limiting pin 11 is embedded in the limiting groove on the base 2 under the elastic force of the limiting spring 10 to limit the base 2, so that a worker can tighten the bolt conveniently; pressing block 5, sliding block 5 and ring plate 6 in accommodating groove 12, pushing baffle 4 to move away from bolt hole, opening the bolt hole, simultaneously extruding compression spring 7, at the moment, the staff can use the bolt, fix base 2 on cutter head 1, after the bolt is tightened, loosening block 5, resetting baffle 4 under the elastic action of compression spring 7, closing the bolt hole, avoiding shield machine during operation, sundries blocking the bolt hole, and affecting the replacement of cutter.
The mechanical connection according to the utility model is a conventional means used by the skilled person and can be suggested by limited trials and is common general knowledge.
Components not described in detail herein are prior art.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (6)
1. A scraper for a shield tunneling machine comprises a cutter head (1), a base (2) and a scraper (3), wherein the base (2) is arranged on the cutter head (1) through bolts, and the scraper (3) is arranged on the base (2); the method is characterized in that: the base (2) is an L-shaped block and comprises a transverse block and a vertical block, an installation groove is formed in the cutter head (1), the transverse block is connected in the installation groove in a sliding mode, a bolt hole is formed in the transverse block, a limiting mechanism is further arranged between the transverse block and the cutter head (1), and the scraper (3) is arranged on the vertical block; still seted up spout (8) on base (2), spout (8) with the bolt hole intercommunication, sliding connection has baffle (4) in spout (8), baffle (4) with compression spring (7) have been pressed between spout (8), holding tank (12) have still been seted up on base (2), holding tank (12) with spout (8) intercommunication, sliding connection has according to piece (5) in holding tank (12), according to piece (5) with baffle (4) sliding connection.
2. The scraper for the shield tunneling machine according to claim 1, characterized in that: the limiting mechanism comprises a limiting spring (10) and a limiting pin (11), a clamping groove (9) is formed in the side wall of the mounting groove, the limiting spring (10) and the limiting pin (11) are arranged in the clamping groove (9), and a limiting groove matched with the limiting pin (11) in size and corresponding to the limiting pin in position is formed in the base (2).
3. The scraper for the shield tunneling machine according to claim 2, characterized in that: the limiting pin (11) comprises a cylindrical end and a hemispherical end, the limiting spring (10) is arranged between the cylindrical end and the clamping groove (9) in a pressing mode, and the limiting groove is matched with the hemispherical end in size and corresponds to the hemispherical end in position.
4. The scraper for the shield tunneling machine according to claim 3, characterized in that: and a fillet is arranged at the contact end of the base (2) and the limiting pin (11) in an inverted manner.
5. The scraper for the shield tunneling machine according to claim 1, characterized in that: baffle (4) are L shaped plate, including diaphragm and riser, the riser with press piece (5) sliding connection, the diaphragm with the bolt hole position is corresponding.
6. The scraper for the shield tunneling machine according to claim 1, characterized in that: the pressing block (5) is further provided with a ring plate (6), and the ring plate (6) is in sliding connection with the accommodating groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121780817.7U CN215979384U (en) | 2021-08-02 | 2021-08-02 | Scraper for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121780817.7U CN215979384U (en) | 2021-08-02 | 2021-08-02 | Scraper for shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215979384U true CN215979384U (en) | 2022-03-08 |
Family
ID=80576787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121780817.7U Active CN215979384U (en) | 2021-08-02 | 2021-08-02 | Scraper for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215979384U (en) |
-
2021
- 2021-08-02 CN CN202121780817.7U patent/CN215979384U/en active Active
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