阅读说明：本技术 一种方便调节刀距的盾构机刀盘 (Shield tunneling machine cutter head convenient for adjusting cutter distance ) 是由 张宇 何政 徐功宇 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种方便调节刀距的盾构机刀盘,包括本体和四个安装板,所述四个安装板环形阵列在本体的顶部,每个所述安装板顶部固定有多个刀体,每个所述安装板下方设置有用于安装板安装的插接机构,每个所述插接机构上连接有用于安装板角度调节的角度偏转机构,所述偏转机构上还连接有用于安装板角度进一步调节的补偿机构,所述本体内部还设置有用于安装板角度实时监测的角度监测组件,所述安装板下方的本体内部开设有泥水仓,所述泥水仓与安装板之间设置有用于泥浆冻结的冷冻机构。本发明通过对单个的安装板进行拆卸,便于实现单体的刀具进行更换和维修,可进一步提高工作效率。(The invention discloses a shield tunneling machine cutter head convenient for adjusting the cutter distance, which comprises a body and four mounting plates, wherein the four mounting plates are annularly arrayed at the top of the body, a plurality of cutter bodies are fixed at the top of each mounting plate, an inserting mechanism used for mounting the mounting plates is arranged below each mounting plate, an angle deflection mechanism used for adjusting the angles of the mounting plates is connected to each inserting mechanism, a compensation mechanism used for further adjusting the angles of the mounting plates is also connected to each deflection mechanism, an angle monitoring assembly used for monitoring the angles of the mounting plates in real time is also arranged in the body, a muddy water bin is arranged in the body below the mounting plates, and a freezing mechanism used for freezing mud is arranged between the muddy water bin and the mounting plates. According to the invention, the single mounting plate is disassembled, so that the replacement and maintenance of the single cutter are convenient to realize, and the working efficiency can be further improved.)

1. The utility model provides a shield constructs quick-witted blade disc of convenient regulation sword distance, includes body (1) and four mounting panels (27), its characterized in that: four mounting panel (27) circular arrays are at the top of body (1), every mounting panel (27) top is fixed with a plurality of cutter bodies (28), every mounting panel (27) below is provided with the grafting mechanism that is used for mounting panel (27) installation, every be connected with the angle deflection mechanism who is used for mounting panel (27) angle modulation in the grafting mechanism, still be connected with the compensation mechanism who is used for further regulation of mounting panel (27) angle in the deflection mechanism, body (1) inside still is provided with the angle monitoring subassembly that is used for mounting panel (27) angle real-time supervision, muddy water storehouse (2) have been seted up to body (1) inside of mounting panel (27) below, be provided with between muddy water storehouse (2) and mounting panel (27) and be used for the freezing mechanism that mud freezes.

2. The shield tunneling machine cutterhead convenient for adjusting the cutter spacing according to claim 1, wherein: the splicing mechanism comprises a mounting bar (12), the mounting bar (12) is fixedly mounted on the inner wall of the body (1) close to the middle part, two vertical rods (21) are mounted on the mounting bar (12) in a limiting manner, a hinged shaft (24) is mounted at the top of each vertical rod (21) through a compensation mechanism, a splicing rod (23) is connected onto the hinged shaft (24), a splicing block (26) matched with the splicing rod (23) is fixed on the lower surface of the hinged shaft (24), a fixing seat (14) is fixed at the inner bottom of the body (1) close to the middle part, a screw rod (15) is slidably mounted between the fixing seat (14) and the inner wall of the body (1), two rod sleeves (13) are sleeved on the screw rod (15), a triangular plate (18) is connected between the two rod sleeves (13), two limiting grooves (16) are formed in the triangular plate (18), and a limiting block (17) is fixed on the two vertical rods (21), the limiting block (17) is arranged inside the limiting groove (16) in a limiting sliding mode, and the bottom of the body (1) is connected with a driving mechanism enabling the triangular plate (18) to move upwards.

3. The shield tunneling machine cutterhead convenient for adjusting the cutter spacing according to claim 2, wherein: the driving mechanism comprises an electric telescopic rod (6), the electric telescopic rod (6) is fixedly installed at the inner bottom of the body (1), a connecting shaft (19) is installed by rotation of an output shaft of the electric telescopic rod (6), and the connecting shaft (19) is connected with one end of a screw rod (15).

4. The shield tunneling machine cutterhead convenient for adjusting the cutter spacing according to claim 1, wherein: the angle deflection mechanism comprises a fixing strip (20) and a gear (5), the gear (5) is sleeved on the outer wall of the connecting shaft (19), the fixing strip (20) is fixedly installed at the inner bottom of the body (1), and a tooth groove (4) meshed with the gear (5) is formed in the upper portion of the body (1).

5. The shield tunneling machine cutterhead convenient for adjusting the cutter spacing according to claim 1, wherein: the compensation mechanism comprises an elastic column (22), the elastic column (22) is connected between a vertical rod (21) and an articulated shaft (24), a flow regulating switch (29) is arranged on the elastic column (22), a piston mechanism used for sucking gas into the elastic column (22) is connected to the bottom of the body (1), and a third connecting pipe (30) is connected between the piston mechanism and the flow regulating switch (29).

6. The shield tunneling machine cutterhead convenient for adjusting the cutter spacing according to claim 5, wherein: piston mechanism includes two horizontal poles (9), two horizontal pole (9) spacing slip is close to on the inner wall of bottom in body (1), horizontal pole (9) looks remote site is connected, two through the bottom of movable rod (11) with montant (21) body (1) inner wall at horizontal pole (9) looks back is fixed with piston sleeve (32), piston sleeve (32) inside slidable mounting has piston board (33), piston board (33) lateral wall is fixed with piston post (35), piston post (35) one end is extended to piston sleeve (32) outside and is fixed with and supports baffle (36), it has spring (34) to support piston post (35) outer wall winding between baffle (36) and piston sleeve (32).

7. The shield tunneling machine cutterhead convenient for adjusting the cutter spacing according to claim 1, wherein: the freezing mechanism comprises four freezing return pipes (31), two freezing return pipes (31) are communicated with each other through a guide pipe, and the opposite ends of the two freezing return pipes (31) are communicated with the outside through a conducting mechanism.

8. The shield tunneling machine cutterhead convenient for adjusting the cutter spacing according to claim 7, wherein: conduction-on mechanism includes two installation pipes (7) and two second connecting pipe (10), two installation pipe (7) all run through-hole and install body (1) inside and with one of them horizontal pole (9) lower surface contact, two second connecting pipe (10) are all installed on mounting bar (12) lateral wall, two horizontal pole (9) upper surface contact, two that second connecting pipe (10) all correspond the position with installation pipe (7) second connecting pipe (10) top is through first connecting pipe (3) respectively with two freezing back flow (31) intercommunications.

9. The shield tunneling machine cutterhead convenient for adjusting the cutter spacing according to claim 6, wherein: one of the cross rods (9) is provided with a through groove (8) for communicating the second connecting pipe (10) with the mounting pipe (7).

10. The shield tunneling machine cutterhead convenient for adjusting the cutter spacing according to claim 6, wherein: angle monitoring mechanism includes reflecting plate (37) and laser probe (25), the upper surface at mounting bar (12), every is installed to reflecting plate (37) annular mounting panel (27) lower surface mounting has laser probe (25) that correspond with reflecting plate (37).

Technical Field

The invention relates to the technical field of shield machine cutter heads, in particular to a shield machine cutter head convenient for adjusting cutter distance.

Background

In China, a tunnel boring machine used for a soft soil stratum is customarily called a shield tunneling machine, a full-face tunnel boring machine used for a rock stratum is called, the basic working principle of shield construction is that a cylindrical steel component is pushed forwards along the axis of a tunnel and excavates soil, a shell of the cylindrical component is a shield, the cylindrical component plays a role of temporary support for an excavated tunnel section which is not lined, bears the pressure of the surrounding soil layer, sometimes bears underground water pressure and keeps underground water out, and excavation, soil discharge, lining and other operations are carried out under the shield of the shield.

Disclosure of Invention

The invention aims to provide a shield tunneling machine cutter head with a conveniently-adjustable cutter distance, which is convenient to replace and maintain a single cutter by disassembling a single mounting plate, can further improve the working efficiency and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a shield constructs quick-witted blade disc of convenient regulation tool spacing, includes body and four mounting panels, four mounting panel ring array are at the top of body, every the mounting panel top is fixed with a plurality of cutter bodies, every the mounting panel below is provided with the grafting mechanism that is used for the mounting panel installation, every be connected with the angle deflection mechanism who is used for mounting panel angle modulation in the grafting mechanism, still be connected with the compensation mechanism who is used for the further regulation of mounting panel angle in the deflection mechanism, the inside angle monitoring subassembly that is used for mounting panel angle real-time supervision that still is provided with of body, the muddy water storehouse has been seted up to the body of mounting panel below, be provided with the freezing mechanism that is used for mud to freeze between muddy water storehouse and the mounting panel.

Preferably, grafting mechanism includes the mounting bar, mounting bar fixed mounting is on the inner wall that the body is close to the middle part, two montants are installed to the spacing on the mounting bar, the articulated shaft is installed through compensation mechanism at the montant top, be connected with the inserted bar on the articulated shaft, the lower fixed surface of articulated shaft have with inserted bar assorted reflecting plate, the interior bottom that the body is close to the middle part is fixed with the fixing base, slidable mounting has the screw rod between fixing base and the body inner wall, the cover is equipped with two pole covers on the screw rod, two be connected with the set-square between the pole cover, two spacing grooves have been seted up on the set-square, two be fixed with the stopper on the montant, the spacing slidable mounting of stopper is inside the spacing groove, the body bottom is connected with the actuating mechanism who makes the set-square upward movement.

Preferably, actuating mechanism includes electric telescopic handle, electric telescopic handle fixed mounting is at the interior bottom of body, electric telescopic handle's output shaft rotates and installs the connecting axle, the connecting axle is connected with the one end of screw rod.

Preferably, the angle deflection mechanism comprises a fixing strip and a gear, the gear is sleeved on the outer wall of the connecting shaft, the fixing strip is fixedly installed at the inner bottom of the body, and a tooth groove meshed with the gear is formed in the upper portion of the body.

Preferably, the compensation mechanism includes the elasticity post, the elasticity post is connected between montant and articulated shaft, be provided with flow control switch on the elasticity post, the body bottom is connected with the piston mechanism who is used for to the inside suction gas of elasticity post, be connected with the third connecting pipe between piston mechanism and the flow control switch.

Preferably, piston mechanism includes two horizontal poles, two the spacing slip of horizontal pole is on the inner wall that the body is close to the bottom, the horizontal pole looks remote site is connected, two through the movable rod with the bottom of montant the body inner wall at the horizontal pole looks back is fixed with the piston bush, the inside slidable mounting of piston bush has the piston board, piston board lateral wall is fixed with the piston post, piston post one end extends to the piston bush outside and is fixed with to the baffle, it has the spring to support the piston post outer wall winding between baffle and the piston bush.

Preferably, the freezing mechanism comprises four freezing return pipes, the two freezing return pipes are communicated with each other through a conduit, and the opposite ends of the two freezing return pipes are communicated with the outside through a conducting mechanism.

Preferably, the conduction mechanism comprises two installation pipes and two second connecting pipes, wherein the installation pipes are all installed inside the body in a penetrating mode through holes and are in contact with the lower surface of one of the cross rods, the second connecting pipes are installed on the side wall of the installation strip, the second connecting pipes are in contact with the upper surface of the cross rod, corresponding to the installation pipes, of the second connecting pipes, and the top ends of the second connecting pipes are communicated with the two freezing return pipes through the first connecting pipes respectively.

Preferably, a through groove for communicating the second connecting pipe with the mounting pipe is formed in one of the cross rods.

Preferably, the angle monitoring mechanism comprises a reflecting plate and a laser probe, the reflecting plate is annularly arranged on the upper surface of the mounting bar, and the lower surface of the mounting plate is provided with the laser probe corresponding to the reflecting plate.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, through the limiting effect of the limiting groove and the limiting block, when the triangular plate moves upwards, the two insertion rods can be further separated from each other laterally, so that the insertion rods are inserted into the insertion blocks, the mounting plate can be mounted through the insertion of the insertion blocks and the insertion rods, meanwhile, when the triangular plate needs to be dismounted, the electric telescopic rod drives the triangular plate to move downwards, so that the insertion rods can be separated from the inside of the insertion blocks, the single mounting plate is dismounted, the replacement and maintenance of a single cutter can be conveniently realized, and the working efficiency can be further improved.

2. The invention needs to change the angle change of the mounting plate when working to realize different tunneling environments through the arrangement of the angle deflection mechanism, the screw rod rises by continuously driving the electric telescopic rod to work, the gear is meshed with the tooth socket at the moment and is matched with the rotary connection of the second connecting pipe, the screw rod can rotate when moving upwards, on one hand, because the rod sleeve is in threaded connection with the screw rod, when the screw rod rotates, the triangle can move towards the middle direction, the vertical rod close to the fixed seat moves upwards in the moving process, the vertical rod far away from the fixed seat moves downwards, and the hinging action of the hinging shaft is matched, the angle deflection of the mounting plate can be realized, meanwhile, the two vertical rods can be separated towards two sides continuously, the angle change of the self-adaptation mounting panel through the distance change between the montant can further improve the stability to the mounting panel supports.

3. Through the further arrangement of the structure, when the angle of the mounting plate is adjusted, the movable rod drives the cross rod to separate towards two sides, when the cross rod is abutted against the resisting plate and continues to move, the interior of the piston sleeve is in a compressed state, through the connection of the third connecting pipe, the gas can enter the elastic column and is matched with the laser probe through the reflecting plate, when the detection angle signal is transmitted to the inside of the single chip microcomputer, the single chip microcomputer controls the opening degree of the flow regulating switch by combining self parameters and actual requirements, and is convenient for regulating the total amount of the gas in the piston sleeve entering the elastic column, thereby make the elasticity post height take place self-adaptation fine setting to, through the real-time supervision of angle monitoring subassembly, the self-adaptation of cooperation elasticity post height changes, can realize carrying out compensation adjustment to the mounting panel angle, thereby further improves the tunnelling precision.

4. According to the invention, through the freezing mechanism, after the work is finished, the mounting plate is in the initial state, as shown in the figure, the second connecting pipe can be communicated with the mounting pipe through the through groove at the position of the cross rod, the freezing medium can be introduced from one mounting pipe and discharged from the mounting pipe at the other side, and when the freezing medium is circularly conveyed in the freezing return pipe, slurry is formed at the periphery of the cutter head, so that major accidents caused by the collapse of the tunnel face are effectively avoided, and the safety of opening the bin and changing the cutter is improved.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic view of a piping connection structure according to the present invention;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is a schematic sectional elevation view of the piston sleeve of the present invention.

In the figure: 1. a body; 2. a muddy water bin; 3. a first connecting pipe; 4. a tooth socket; 5. a gear; 6. an electric telescopic rod; 7. installing a pipe; 8. a through groove; 9. a cross bar; 10. a second connecting pipe; 11. a movable rod; 12. mounting a bar; 13. a rod sleeve; 14. a fixed seat; 15. a screw; 16. a limiting groove; 17. a limiting block; 18. a set square; 19. a connecting shaft; 20. a fixing strip; 21. a vertical rod; 22. an elastic column; 23. a plug rod; 24. hinging a shaft; 25. a laser probe; 26. an insertion block; 27. mounting a plate; 28. a cutter body; 29. a flow regulating switch; 30. a third connecting pipe; 31. a freezing return pipe; 32. a piston sleeve; 33. a piston plate; 34. a spring; 35. a piston post; 36. a baffle plate; 37. a reflective plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a shield constructs quick-witted blade disc of convenient regulation tool spacing, including body 1 and four mounting panels 27, four mounting panels 27 circular array are at the top of body 1, every mounting panel 27 top is fixed with a plurality of cutter bodies 28, every mounting panel 27 below is provided with the grafting mechanism that is used for the mounting panel 27 installation, be connected with the angle deflection mechanism that is used for the mounting panel 27 angle to adjust in every grafting mechanism, still be connected with the compensation mechanism that is used for the further regulation of mounting panel 27 angle in the deflection mechanism, the inside angle monitoring subassembly that is used for the real-time supervision of mounting panel 27 angle that still is provided with of body 1 below, muddy water storehouse 2 has been seted up to body 1 inside below mounting panel 27, be provided with the freezing mechanism that is used for mud to freeze between muddy water storehouse 2 and the mounting panel 27.

Through dismantling individual mounting panel 27, be convenient for realize that solitary cutter changes and maintains, can further improve work efficiency.

Further, grafting mechanism includes mounting bar 12, mounting bar 12 fixed mounting is on body 1 is close to the inner wall at middle part, two montants 21 are installed to the spacing on mounting bar 12, montant 21 top is installed the articulated shaft 24 through compensation mechanism, be connected with peg graft rod 23 on the articulated shaft 24, the lower fixed surface of articulated shaft 24 has with peg rod 23 assorted grafting piece 26, body 1 is close to the interior bottom at middle part and is fixed with fixing base 14, slidable mounting has screw rod 15 between fixing base 14 and the 1 inner wall of body, the cover is equipped with two pole covers 13 on the screw rod 15, be connected with set-square 18 between two pole covers 13, set-square 18 is last to have seted up two spacing grooves 16, be fixed with spacing piece 17 on two montants 21, the spacing slidable mounting of stopper 17 is inside spacing groove 16, body 1 bottom is connected with the actuating mechanism who makes set-square 18 upward movement.

Electric telescopic handle 6 can drive screw rod 15 and the triangle 18 up-going on it, because spacing groove 16 and stopper 17's limiting displacement, when triangle 18 up-going, can further realize two peg graft 23 lateral separation motion, make peg graft 23 insert inside the peg graft 26, can realize the installation of mounting panel 27 through the grafting of peg graft 26 with peg graft 23, when needs are dismantled simultaneously, make electric telescopic handle 6 drive triangle 18 downstream can realize peg graft 23 break away from inside the peg graft 26, realize that single mounting panel 27 dismantles.

Further, actuating mechanism includes electric telescopic handle 6, and electric telescopic handle 6 fixed mounting is at the interior bottom of body 1, and electric telescopic handle 6's output shaft rotates installs connecting axle 19, and connecting axle 19 is connected with the one end of screw rod 15.

The corresponding electric telescopic rod 6 is driven to work, and the electric telescopic rod 6 drives the screw rod 15 and the triangular plate 18 thereon to move up and down.

Further, the angle deflection mechanism comprises a fixing strip 20 and a gear 5, the gear 5 is sleeved on the outer wall of the connecting shaft 19, the fixing strip 20 is fixedly installed at the inner bottom of the body 1, and a tooth groove 4 meshed with the gear 5 is formed in the upper portion of the body 1.

When in work, the angle change of the mounting plate 27 needs to be changed, so as to realize different tunneling environments, by continuously driving the electric telescopic rod 6 to work, the screw rod 15 rises, at the moment, the gear 5 starts to be meshed with the tooth groove 4, and the screw rod 15 can rotate when moving upwards by matching with the rotating connection of the second connecting pipe 10, on one hand, because the rod sleeve 13 is in threaded connection with the screw rod 15, when the screw rod 15 rotates, the triangle plate 18 can move towards the middle direction, the vertical rod 21 close to the fixed seat 14 moves upwards in the moving process, so that the vertical rod 21 far away from the fixed seat 14 moves downwards, and by matching with the hinging action of the hinging shaft 24, the angular deflection of the mounting plate 27 can be realized, and simultaneously, the two vertical rods 21 can be separated towards the two sides continuously, the stability of the support of the mounting plate 27 can be further improved by adapting the angle change of the mounting plate 27 by the change of the distance between the vertical rods 21.

Further, the compensation mechanism comprises an elastic column 22, the elastic column 22 is connected between the vertical rod 21 and the hinge shaft 24, a flow regulating switch 29 is arranged on the elastic column 22, the bottom of the body 1 is connected with a piston mechanism for sucking gas into the elastic column 22, and a third connecting pipe 30 is connected between the piston mechanism and the flow regulating switch 29.

The height of the elastic column 22 is subjected to self-adaptive fine adjustment, so that the angle of the mounting plate 27 can be compensated and adjusted by means of real-time monitoring of the angle monitoring assembly and self-adaptive change of the height of the elastic column 22, and the tunneling precision is further improved.

Further, the piston mechanism includes two horizontal poles 9, the spacing slip of two horizontal poles 9 is on the inner wall that body 1 is close to the bottom, horizontal pole 9 looks remote site passes through movable rod 11 and is connected with the bottom of montant 21, the body 1 inner wall at two horizontal poles 9 looks backs is fixed with piston bush 32, inside slidable mounting of piston bush 32 has piston plate 33, piston plate 33 lateral wall is fixed with piston post 35, piston post 35 one end extends to the piston bush 32 outside and is fixed with and supports baffle 36, it has spring 34 to support the piston post 35 outer wall winding between baffle 36 and the piston bush 32.

When the mounting plate 27 is angularly adjusted, the movable rod 11 drives the cross rod 9 to separate towards both sides, and when the cross rod 9 abuts against the resisting plate 36 and continues to move, the interior of the piston sleeve 32 is in a compressed state, and gas can enter the interior of the elastic column 22 through the connection effect of the third connecting pipe 30.

Further, the freezing mechanism comprises four freezing return pipes 31, the two freezing return pipes 31 are communicated through a conduit, and the opposite ends of the two freezing return pipes 31 are communicated with the outside through a conducting mechanism.

When the freezing medium is circularly conveyed in the freezing return pipe 31, slurry is formed on the periphery of the cutter head to be solidified, so that major accidents caused by the collapse of the tunnel face are effectively avoided, and the safety of opening the bin and changing the cutter is improved.

Further, the conduction mechanism comprises two installation pipes 7 and two second connecting pipes 10, the two installation pipes 7 are all installed inside the body 1 in a penetrating mode through the through holes and are in contact with the lower surface of one cross rod 9, the two second connecting pipes 10 are all installed on the side wall of the installation strip 12, the two second connecting pipes 10 are in contact with the upper surface of the cross rod 9 corresponding to the installation pipes 7, and the tops of the two second connecting pipes 10 are respectively communicated with the two freezing return pipes 31 through the first connecting pipes 3.

When the freezing medium is introduced from one of the mounting pipes 7 and discharged from the other mounting pipe 7, the freezing medium is circularly conveyed in the freezing return pipe 31, so that slurry solidification is formed on the periphery of the cutter head.

Furthermore, a through groove 8 for communicating the second connecting pipe 10 with the mounting pipe 7 is formed in one of the cross bars 9.

When the work is finished, the mounting plate 27 is in the initial state, as shown in fig. 1, and at this time, the cross bar 9 is located at a position where the second connecting pipe 10 can be communicated with the mounting pipe 7 through the through groove 8.

Further, the angle monitoring mechanism comprises a reflecting plate 37 and laser probes 25, the reflecting plate 37 is annularly mounted on the upper surface of the mounting bar 12, and the laser probes 25 corresponding to the reflecting plate 37 are mounted on the lower surface of each mounting plate 27.

Through the cooperation of reflecting plate 37 and laser probe 25, when detecting that angle signal transmits to the singlechip inside, the singlechip combines self parameter and actual needs, control flow control switch 29's the degree of opening, simultaneously, is convenient for adjust the inside gaseous total amount that gets into the elasticity post 22 of piston bush 32.

The working principle is as follows: when the shield tunneling machine cutter head convenient for adjusting the cutter distance is used, the cutter body 28 is firstly installed on the upper surface of the installation plates 27, then the four installation plates 27 are placed at the top of the body 1 and drive the corresponding electric telescopic rods 6 to work, at the beginning, the electric telescopic rods 6 can drive the screw rods 15 and the triangular plates 18 thereon to move upwards, due to the limiting effect of the limiting grooves 16 and the limiting blocks 17, when the triangular plates 18 move upwards, the two insertion rods 23 can further move laterally and separately, so that the insertion rods 23 are inserted into the insertion blocks 26, the installation of the installation plates 27 can be realized through the insertion of the insertion blocks 26 and the insertion rods 23, and when the cutter head needs to be disassembled, the electric telescopic rods 6 can drive the triangular plates 18 to move downwards to realize that the insertion rods 23 are separated from the inside the insertion blocks 26, so that the single installation plates 27 can be disassembled, and the monomer replacement and maintenance are convenient to realize, the working efficiency can be further improved;

when in work, the angle change of the mounting plate 27 needs to be changed, so as to realize different tunneling environments, by continuously driving the electric telescopic rod 6 to work, the screw rod 15 rises, at the moment, the gear 5 starts to be meshed with the tooth groove 4, and the screw rod 15 can rotate when moving upwards by matching with the rotating connection of the second connecting pipe 10, on one hand, because the rod sleeve 13 is in threaded connection with the screw rod 15, when the screw rod 15 rotates, the triangle plate 18 can move towards the middle direction, the vertical rod 21 close to the fixed seat 14 moves upwards in the moving process, so that the vertical rod 21 far away from the fixed seat 14 moves downwards, and by matching with the hinging action of the hinging shaft 24, the angular deflection of the mounting plate 27 can be realized, and simultaneously, the two vertical rods 21 can be separated towards the two sides continuously, the angle change of the mounting plate 27 is adapted through the distance change between the vertical rods 21, so that the stability of supporting the mounting plate 27 can be further improved;

when the angle of the mounting plate 27 is adjusted, the movable rod 11 drives the cross rod 9 to separate towards two sides, when the cross bar 9 interferes with the resisting plate 36 and continues to move, the piston sleeve 32 is compressed, by the connection of the third connection tube 30, the gas can enter the elastic column 22, and through the cooperation of the reflection plate 37 and the laser probe 25, when the detection angle signal is transmitted to the single chip microcomputer, the single chip microcomputer controls the opening degree of the flow regulating switch 29 by combining the parameters of the single chip microcomputer and the actual requirements, and simultaneously, the total amount of the gas in the piston sleeve 32 entering the elastic column 22 is conveniently regulated, thus, the height of the elastic column 22 is self-adaptively adjusted, and therefore, through the real-time monitoring of the angle monitoring component and the self-adaptive change of the height of the elastic column 22, the angle of the mounting plate 27 can be compensated and adjusted, so that the tunneling precision is further improved;

after the work is finished, the mounting plate 27 is in the initial state, as shown in fig. 1, at the moment, the position of the cross rod 9 can be communicated with the second connecting pipe 10 and the mounting pipes 7 under the action of the through groove 8, the freezing medium can be introduced from one mounting pipe 7 and discharged from the mounting pipe 7 on the other side, and when the freezing medium is circularly conveyed in the freezing return pipe 31, slurry is formed on the periphery of the cutter head to be solidified, so that major accidents caused by palm surface collapse are effectively avoided, and the safety during opening and tool changing is improved.

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