CN114033405A - High-strength wear-resistant shield tunneling machine cutting blade - Google Patents
High-strength wear-resistant shield tunneling machine cutting blade Download PDFInfo
- Publication number
- CN114033405A CN114033405A CN202111076060.8A CN202111076060A CN114033405A CN 114033405 A CN114033405 A CN 114033405A CN 202111076060 A CN202111076060 A CN 202111076060A CN 114033405 A CN114033405 A CN 114033405A
- Authority
- CN
- China
- Prior art keywords
- cutter
- block
- cutting blade
- tunneling machine
- metal
- 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.)
- Withdrawn
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 48
- 230000005641 tunneling Effects 0.000 title claims abstract description 26
- 230000035939 shock Effects 0.000 claims abstract description 16
- 239000006096 absorbing agent Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 29
- 230000006835 compression Effects 0.000 claims description 23
- 238000007906 compression Methods 0.000 claims description 23
- 239000010935 stainless steel Substances 0.000 claims description 21
- 229910001220 stainless steel Inorganic materials 0.000 claims description 21
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 18
- 239000000919 ceramic Substances 0.000 claims description 17
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 17
- 229910052721 tungsten Inorganic materials 0.000 claims description 17
- 239000010937 tungsten Substances 0.000 claims description 17
- 229910000677 High-carbon steel Inorganic materials 0.000 claims description 16
- 238000005266 casting Methods 0.000 claims description 14
- 229910000599 Cr alloy Inorganic materials 0.000 claims description 13
- 239000000788 chromium alloy Substances 0.000 claims description 13
- 238000013016 damping Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 239000011651 chromium Substances 0.000 claims description 9
- 229910001080 W alloy Inorganic materials 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 230000004927 fusion Effects 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 238000010128 melt processing Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 13
- 239000010941 cobalt Substances 0.000 description 6
- 229910017052 cobalt Inorganic materials 0.000 description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910000997 High-speed steel Inorganic materials 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000004881 precipitation hardening Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D9/087—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 a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a high-strength wear-resistant shield machine cutting blade, which belongs to the field of accessories of tunneling machinery and comprises a cutter disc and a limiting plate, wherein a plurality of groups of hobs and cutters are arranged on the cutter disc, a sleeve is arranged at the bottom of each cutter, an auxiliary clamping ring is arranged in the sleeve, a latin is inserted into each cutter, a clamping plate is arranged at the bottom of each latin, a screw rod penetrates through the clamping plate, a rotating block is arranged at one end of the screw rod, the other end of the screw rod is inserted into a buffer block on the limiting plate, a buffer plate is arranged in each buffer block, a shock absorber is arranged at the bottom of each buffer plate, and a plurality of groups of shock absorbers are arranged on each shock absorber. The vibration generated by the cutter is damped and absorbed by the multiple groups of dampers, so that the abrasion of the cutter and the sleeve is reduced, the service life of the cutter is prolonged, the cutter is replaced, the shield machine can work normally, and the working efficiency of the shield machine is improved.
Description
Technical Field
The invention relates to the field of tunneling machine accessories, in particular to a high-strength wear-resistant shield tunneling machine cutting blade.
Background
The shield tunneling machine is generally classified into a hand-operated shield, an extrusion shield, a semi-mechanical shield (local air pressure, global air pressure), a mechanical shield (an open-chest cutting shield, an air pressure shield, a slurry pressure shield, an earth pressure balance shield, a mixed shield, and a special shield), a shield tunneling machine, and a shield tunneling machine for short, according to the working principle. The tunnel boring machine is a special engineering machine for tunnel boring, integrates light, mechanical, electrical, hydraulic, sensing and information technologies, has the functions of excavating and cutting soil, conveying soil slag, assembling tunnel lining, measuring, guiding, correcting deviation and the like, relates to multiple subject technologies such as geology, civil engineering, machinery, mechanics, hydraulic pressure, electricity, control, measurement and the like, is designed and manufactured in a 'body-measuring clothes-cutting' mode according to different geology, and has extremely high reliability requirement. The shield tunneling machine is widely used for tunnel engineering of subways, railways, highways, municipal works, hydroelectric works and the like, and the basic working principle of the shield tunneling machine is that a cylindrical steel assembly is pushed forwards along the axis of a tunnel and excavates soil. The casing of the cylinder assembly, the shield, acts as a temporary support for the excavated, not yet lined tunnel section, bearing the pressure of the surrounding soil layers and sometimes also the groundwater pressure and the water that is trapped outside. The operations of digging, dumping, lining and the like are carried out under the shield of the shield.
Patent CN201110068134.3 discloses a center knife for a replaceable blade type shield tunneling machine, which comprises a blade seat, a center knife block and three side knives, wherein the blade seat is provided with a center knife block positioning column and three knife rests, the middle part of the positioning column is provided with a center knife block positioning hole, the bottom of the center knife block is fixedly connected to the blade seat, the end part of the positioning column is fixedly connected with a conical boss, the conical boss is provided with an inner hole, and the sizes of the boss inner hole and the center knife block positioning hole are matched with the size of the center knife block; three knife rests are arranged on the periphery of the central knife block positioning column, a slot opening fixedly connected with the edge knife is formed in each knife rest, positioning holes are formed in the three edge knives, the three edge knives are fixedly connected in the slot opening of the three knife rests through bolts respectively, and three knife arms formed by the edge knives and the knife rests mutually form an included angle of 120 degrees.
Some of the disadvantages of the invention are as follows: 1. when the cutting blade of the shield machine is in operation, the generated vibration is easy to wear the blade, so that improvement is needed. 2. The above designs are inconvenient to remove and replace after damage, and therefore need to be improved.
Disclosure of Invention
The invention provides a high-strength wear-resistant cutting blade of a shield machine, which aims to absorb and absorb shock generated by a cutter through a plurality of groups of shock absorbers, reduce the wear of the cutter and a sleeve, prolong the service life of the cutter, facilitate the normal work of the shield machine by replacing the cutter and improve the working efficiency of the shield machine.
The specific technical scheme provided by the invention is as follows:
the invention provides a high-strength wear-resistant shield machine cutting blade which comprises a cutter disc and a limiting plate, wherein a hob and a cutter are arranged on the cutter disc, a plurality of groups of hobs and cutters are arranged on the hob and the cutter, a sleeve is arranged at the bottom of the cutter, an auxiliary clamping ring is arranged in the sleeve, a latin is inserted in the cutter, a clamping plate is arranged at the bottom of the latin, a screw rod penetrates through the clamping plate, a rotating block is arranged at one end of the screw rod, a buffer block is inserted in the limiting plate at the other end of the screw rod, a buffer plate is arranged in the buffer block, a shock absorber is arranged at the bottom of the buffer plate, a plurality of groups of shock absorbers are arranged, each shock absorber comprises a transmission rod, a compression spring, a damping block and a sliding plate, the damping block is fixedly arranged at the bottom of the buffer block, the sliding plate is internally provided with a sliding plate, and the transmission rod is inserted in the sliding plate, the transmission rod is provided with a compression spring, the limiting plate is provided with a connecting rod, the other end of the connecting rod is provided with a buffer block, the other end of the buffer block is provided with a supporting block, and the cutter penetrates through the supporting block and extends out of the limiting plate.
Optionally, a cavity is formed in the cutter, and a wear sensor is mounted in the cavity.
Optionally, a thread groove a is formed in the cutter, a thread is formed in the outer portion of the latin, and the thread formed in the outer portion of the latin is matched with the thread groove a.
Optionally, a thread groove B is formed in the clamping plate, a thread groove C is formed in the limiting plate, and threads formed in the outer wall of the screw rod are matched with the thread groove B and the thread groove C.
Optionally, a mounting groove is formed in the cutter head, and a sleeve is inserted in the mounting groove.
Optionally, a circular washer is mounted on the side wall of the rotating block.
Optionally, a chute a is formed in the supporting block, and a closing valve is vertically connected in the chute a in a sliding manner.
Optionally, a sliding groove B is formed in the inner portion of the damping block, a sliding plate is connected to the inner portion of the sliding groove B in a vertical sliding mode, a plurality of groups of reset springs are arranged at the inner bottom of the damping block, and the reset springs are located at the bottom of the sliding plate.
Optionally, the blade disc material is high carbon steel, the inside substrate of cutter is trapezoidal alloy basal block, the peripheral cladding of trapezoidal alloy basal block has the stainless steel net, the inside high temperature melting of stainless steel net has inlayed ceramic particle piece, it has the chrome alloy casting layer to weld in the overlaying of just being located ceramic particle piece and the peripheral high temperature melting of stainless steel net on the cutter, the peripheral plating of chrome alloy casting layer has the tungsten alloy layer.
Optionally, the trapezoidal alloy base block is formed by melting and processing high-carbon steel, metal aluminum and metal tungsten, and the use weight ratio of the high-carbon steel to the metal aluminum to the metal tungsten is 3: 5: 2, the chromium alloy casting layer is formed by melting high-carbon steel, metal tungsten and metal chromium, and the high-carbon steel, the metal tungsten and the metal chromium are used in a weight ratio of 1: 1: 3, the tungsten alloy layer is formed by melting metal chromium and metal tungsten, and the metal chromium and the metal tungsten are used in a weight ratio of 3: 7.
the invention has the following beneficial effects:
1. the embodiment of the invention provides a high-strength wear-resistant cutting blade of a shield machine, when the shield machine works underground, a cutter head starts to operate, a hob and a cutter on the cutter head cut underground rock soil, the vibration generated by the cutter in the operation process is transmitted to a supporting block through a sleeve, the other end of the supporting block is provided with a buffer block, the buffer block is stressed to transmit force to a buffer plate, the buffer plate uniformly disperses the force on a damper, the buffer plate is stressed to drive a transmission rod, the transmission rod extrudes a sliding plate to enable the sliding plate to vertically slide downwards in a sliding chute B, the transmission rod extrudes a compression spring in the downward pressing process, the compression spring is a spiral spring bearing the forward pressure, the compression spring is generally a metal wire which is coiled at equal pitch and has a fixed linear diameter, the compression spring utilizes a plurality of open coils to supply resistance force to external load pressure and pushes back to resist the external pressure, when the slide is pushing down, reset spring is installed to the slide bottom, and reset spring supports the slide, has consumed the extrusion that compression spring bore, carries out the shock attenuation energy-absorbing through the vibrations that multiunit bumper shock absorber produced the cutter, has reduced cutter and telescopic wearing and tearing, has increased the life of cutter.
2. The embodiment of the invention provides a high-strength wear-resistant shield machine cutting blade, wherein a cutter head is made of high-carbon steel, the high-carbon steel is formed by adding cobalt into high-speed steel, tungsten and molybdenum tungsten carbide can be precipitated from martensite during tempering, the dispersion hardening effect is improved, the thermal stability of the blade is improved, the normal-temperature hardness, high-temperature hardness and wear resistance can be improved, the cobalt content is increased, the heat conductivity of steel can be improved, the friction coefficient between a cutter and a workpiece is reduced, the cutter is made of alumina and is polished, 4 high-speed rotation can polish a notch, the notch is smoother, the functionality of the blade is improved, when the cutter runs, the cutter and the ground are cut, the surface of the cutter is worn, a containing cavity is formed in the cutter, when a wear sensor in the containing cavity is in contact with sandstone, the wear sensor transmits an electric signal to an external controller, and after the external controller receives the signal, stopping the operation of the shield machine, replacing the worn cutting blade, adjusting a plurality of groups of rotating blocks, driving a screw rod by the rotating blocks, extracting the screw rod from a thread groove C, then driving the screw rod to be extracted from a thread groove B, pulling a clamping plate after the screw rod is extracted, pulling a sleeve by the clamping plate, horizontally and outwards moving a cutter arranged in the sleeve in a mounting groove under the stress, adjusting a closing valve when a cutter head of the cutter moves into a supporting block, vertically sliding the closing valve in a sliding groove A under the hydraulic drive, preventing sand from sliding from the mounting groove to the inside of a cutter head after the closing valve is closed, then pulling the clamping plate, extracting the cutter, rotating the clamping plate, driving a latin by the clamping plate, enabling the latin to vertically slide in the thread groove A arranged in the cutter, pulling the cutter after the latin is extracted from the thread groove A, replacing the cutter, and replacing the cutter by replacing the cutter, the shield machine can work normally, and the working efficiency of the shield machine is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a high strength wear resistant shield machine cutting blade according to an embodiment of the present invention;
FIG. 2 is a schematic view of an expanded internal structure of the high-strength wear-resistant shield tunneling machine cutting blade of FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic view of an expanded cutter configuration of the shield machine cutting blade of FIG. 1 in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram of an inner expanding structure of the cushion block in FIG. 1 of a high-strength wear-resistant shield tunneling machine cutting blade according to an embodiment of the present invention;
FIG. 5 is a schematic view of a portion of the cutter of FIG. 1 of a high strength wear resistant shield tunneling machine cutting blade according to an embodiment of the present invention;
FIG. 6 is a schematic view of an overall structure of a high-strength wear-resistant cutting blade of a shield tunneling machine according to an embodiment of the present invention;
FIG. 7 is a schematic view of the structure A in FIG. 1 of a high strength wear resistant shield tunneling machine cutting blade according to an embodiment of the present invention.
In the figure: 1. a cutter head; 2. hobbing cutters; 3. a cutter; 4. a sleeve; 5. an auxiliary clamping ring; 6. a cavity; 7. a wear sensor; 8. a thread groove A; 9. performing latin; 10. a clamping plate; 11. a thread groove B; 12. mounting grooves; 13. a support block; 14. a chute A; 15. closing the valve; 16. a buffer block; 17. a connecting rod; 18. a limiting plate; 19. a thread groove C; 20. rotating the block; 21. a circular washer; 22. a screw; 23. a shock absorber; 24. a buffer plate; 25. a transfer lever; 26. a compression spring; 27. a damping block; 28. a slide plate; 29. a chute B; 30. a return spring; 31. a stainless steel mesh; 32. a block of ceramic particles; 33. a chromium alloy casting layer; 34. a tungsten alloy layer; 35. a trapezoidal alloy base block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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.
A high-strength wear-resistant shield machine cutting blade according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 4.
Referring to fig. 1, 2, 3 and 4, an embodiment of the invention provides a high-strength wear-resistant shield machine cutting blade, which includes a cutter head 1 and a limiting plate 18, wherein a hob 2 and a cutter 3 are mounted on the cutter head 1, the hob 2 and the cutter 3 are provided with multiple groups, a sleeve 4 is mounted at the bottom of the cutter 3, an auxiliary clamp ring 5 is mounted in the sleeve 4, a latin 9 is inserted into the cutter 3, a clamp plate 10 is mounted at the bottom of the latin 9, a screw rod 22 is inserted into the clamp plate 10, a rotating block 20 is mounted at one end of the screw rod 22, the other end of the screw rod 22 is inserted into a buffer block 16 on the limiting plate 18, a buffer plate 24 is mounted in the buffer block 16, a damper 23 is mounted at the bottom of the buffer plate 24, the damper 23 is provided with multiple groups, and the damper 23 is composed of a transmission rod 25, a compression spring 26 and a compression spring 26, Damping piece 27 and slide 28 constitute, damping piece 27 fixed mounting is in the buffer block 16 bottom, damping piece 27 internally mounted has slide 28, it has transfer bar 25 to peg graft on the slide 28, install compression spring 26 on the transfer bar 25, install connecting rod 17 on the limiting plate 18, the connecting rod 17 other end is installed, supporting shoe 13 is installed to the buffer block 16 other end, cutter 3 runs through supporting shoe 13 and extends to outside the limiting plate 18.
Referring to fig. 1 and 2, a cutter 3 cuts with the ground, the surface of the cutter 3 is worn, an accommodating cavity 6 is formed inside the cutter 3, when a wear sensor 7 inside the accommodating cavity 6 contacts sand, the wear sensor 7 transmits an electric signal to an external controller, and after the external controller receives the signal, the shield machine stops running, and the worn cutting blade is replaced.
Referring to fig. 2 and 3, the clamping plate 10 is rotated, the clamping plate 10 drives the latin 9, so that the latin 9 slides vertically in the thread groove A8 formed in the cutter 3, and after the latin 9 is taken out from the thread groove A8, the cutter 3 can be pulled, and the cutter 3 can be replaced.
Referring to fig. 2 and 3, the plurality of sets of rotating blocks 20 are adjusted, the rotating blocks 20 drive the screw rods 22 to draw the screw rods 22 out of the thread grooves C19, the screw rods 22 are driven to be drawn out of the thread grooves B11, after the screw rods 22 are drawn out, the clamping plates 10 are pulled, the clamping plates 10 pull the sleeves 4, and the cutting blades 3 installed inside the sleeves 4 are forced to move horizontally outwards in the installation grooves 12.
Referring to fig. 2 and 3, a sleeve 4 is inserted into the mounting groove 12, and the sleeve 4 is matched with the mounting groove 12 in size, so that sand and stones attached to the cutting knife 3 are prevented from flowing into the mounting groove 12 and entering the interior of the shield tunneling machine.
Referring to fig. 3, the circular washer 21 prevents the rotary block 20 from being indented with the clamping plate 10, and provides a buffer for the rotary block 20 and the pressing plate.
Referring to fig. 3, when the cutter head of the cutter 3 moves into the supporting block 13, the closing valve 15 is adjusted, the closing valve 15 is driven by hydraulic pressure to slide vertically in the slide groove a14, and when the closing valve 15 is closed, sand and stone are prevented from sliding from the mounting groove 12 to the inside of the cutter head 1.
Referring to fig. 3 and 4, during operation of the cutting blade 3, generated vibration is transmitted to the supporting block 13 through the sleeve 4, the buffer block 16 is mounted at the other end of the supporting block 13, the buffer block 16 transmits force to the buffer plate 24, the buffer plate 24 uniformly distributes the force to the damper 23, the buffer plate 24 drives the transmission rod 25 through force, the transmission rod 25 presses the sliding plate 28, the sliding plate 28 vertically slides downwards in the sliding groove B29, the transmission rod 25 presses the compression spring 26 during pressing, the compression spring 26 is a helical spring bearing inward pressure, the compression spring 26 is generally a metal wire wound at equal pitch and has a fixed wire diameter, and the compression spring 26 supplies resisting force to external load pressure through a plurality of open coils and pushes back to resist the external pressure.
Referring to fig. 4, when the sliding plate 28 is pressed down, the return spring 30 is mounted at the bottom of the sliding plate 28, the return spring 30 supports the sliding plate 28, the compression borne by the compression spring 26 is reduced, the shock generated by the cutter 3 is absorbed through the multiple sets of shock absorbers 23, and the wear of the cutter 3 and the sleeve 4 is reduced.
Referring to fig. 1 and 7, the cutter head 1 is made of high-carbon steel, the high-carbon steel is formed by adding cobalt into the high-speed steel, tungsten and molybdenum tungsten carbide can be precipitated from martensite during tempering, the dispersion hardening effect is improved, and the thermal stability of the blade is improved, so that the normal temperature, high-temperature hardness and wear resistance can be improved, the cobalt content can be increased, the thermal conductivity of the steel can be improved, the friction coefficient between a cutter and a workpiece is reduced, the cutter is polished, 4 high-speed rotation can polish a notch, the notch is smoother, the functionality of the blade is improved, the cutter 3 is made of stainless steel, chromium, ceramic and metal tungsten materials, the internal base material of the cutter 3 is a trapezoidal alloy base block 35, the periphery of the trapezoidal alloy base block 35 is coated with a stainless steel mesh 31, a ceramic particle block 32 is embedded in the stainless steel mesh 31 through high-temperature fusion, a chromium alloy cast layer 33 is formed on the cutter 3 and positioned on the periphery of the ceramic particle block 32 and the stainless steel mesh 31 through high-temperature fusion welding, the periphery of the chromium alloy casting layer 33 is plated with the tungsten alloy layer 34, and the defects and advantages of metal and ceramic are mutually compensated, so that the impact resistance of the cutter 3 is kept, the toughness of the material is improved, the binding force between the chromium alloy casting layer 33 and the trapezoid alloy base block 35 can be effectively improved through the arrangement of the stainless steel mesh 31, the use strength of the cutter 3 is greatly improved, the strength and the wear resistance of the cutter 3 are improved, the service life of the cutter 3 is effectively prolonged, the ceramic particle block 32 and the stainless steel mesh 31 coat the periphery of the trapezoid alloy base block 35, then the high-temperature chromium alloy casting layer 33 is cast on the surfaces of the stainless steel mesh 31 and the ceramic particle block 32, the outer surface of the cutter 3 has a high wear-resistant effect, the hardness of the metal material of the cutter 3 is in gradient distribution through the arrangement of the trapezoid alloy base block 35, the hardness at the cutting edge position is high and the wear-resistant performance is good, can keep sharp for a long time in the operation process.
The embodiment of the invention provides a high-strength wear-resistant cutting blade of a shield machine, when the shield machine works underground, a cutter head 1 starts to operate, a hob 2 and a cutter 3 on the cutter head 1 cut underground rock soil, the cutter 3 transmits vibration generated in the operation process to a supporting block 13 through a sleeve 4, the other end of the supporting block 13 is provided with a buffer block 16, the buffer block 16 is stressed to transmit force to a buffer plate 24, the buffer plate 24 uniformly disperses the force on a damper 23, the buffer plate 24 is stressed to drive a transmission rod 25, the transmission rod 25 extrudes a sliding plate 28 to enable the sliding plate 28 to vertically slide downwards in a sliding groove B29, the transmission rod 25 extrudes a compression spring 26 in the downward pressing process, the compression spring 26 is a spiral spring bearing inward pressure, the compression spring 26 is generally a metal wire wound at equal pitch and has a fixed wire diameter, the compression spring 26 utilizes a plurality of open coils to supply resistance force to external load pressure, the cutter head 1 is made of high-carbon steel, the high-carbon steel is added with cobalt in high-speed steel, so that tungsten and molybdenum tungsten carbide can be precipitated from martensite during tempering, the dispersion hardening effect is improved, the thermal stability of the blade is improved, the normal temperature and high-temperature hardness and wear resistance can be improved, the cobalt content can be increased, the thermal conductivity of steel can be improved, the friction coefficient between the cutter and a workpiece is reduced, the grinding effect can be realized by grinding the notch by high-speed rotation of the cutter head 4, the notch is smoother, the functionality of the blade is improved, and the cutter 3 is made of stainless steel, chromium metal, The cutting knife is made of ceramic and metal tungsten materials, a substrate inside the cutting knife 3 is a trapezoid alloy base block 35, a stainless steel mesh 31 is coated on the periphery of the trapezoid alloy base block 35, a ceramic particle block 32 is embedded in the stainless steel mesh 31 in a high-temperature fusion mode, a chromium alloy casting layer 33 is formed on the cutting knife 3 and located on the periphery of the ceramic particle block 32 and the stainless steel mesh 31 in a high-temperature fusion and overlaying mode, a tungsten alloy layer 34 is coated on the periphery of the chromium alloy casting layer 33 in a plating mode, the defects and the advantages of the metal and the ceramic make up for each other, so that the impact resistance of the cutting knife 3 is kept, the toughness of the materials is improved, the binding force between the chromium alloy casting layer 33 and the trapezoid alloy base block 35 can be effectively improved through the arrangement of the stainless steel mesh 31, the use strength of the cutting knife 3 is greatly improved, the strength and the wear resistance of the cutting knife 3 are improved, the service life of the cutting knife 3 is effectively prolonged, the trapezoid alloy base block 35 is coated by the ceramic particle block 32 and the stainless steel mesh 31, then, a high-temperature chromium alloy casting layer 33 is cast on the surfaces of a stainless steel net 31 and a ceramic particle block 32, so that the outer surface of a cutter 3 has a high wear-resisting effect, when the cutter 3 runs, the cutter 3 cuts with the ground, the surface of the cutter 3 is worn, a containing cavity 6 is formed in the cutter 3, when a wear sensor 7 in the containing cavity 6 contacts sand and stones, the wear sensor 7 transmits an electric signal to an external controller, the external controller stops the operation of a shield machine after receiving the signal, the worn Sundde cutting blades are replaced, a plurality of groups of rotating blocks 20 are adjusted, the rotating blocks 20 drive a screw 22, the screw 22 is drawn out from a thread groove C19, the screw 22 is then taken out from a thread groove B11, after the screw 22 is taken out, the clamping plate 10 is pulled, the clamping plate 10 pulls a sleeve 4, the cutter 3 installed in the sleeve 4 is forced to move horizontally outwards in a mounting groove 12, when the tool bit of cutter 3 moves to in the supporting shoe 13, adjust closing valve 15, closing valve 15 is driven by hydraulic pressure, slide perpendicularly in spout A14, after closing valve 15 is closed, prevent that gravel and sand from sliding to the blade disc 1 inside from mounting groove 12, pull clamping plate 10 again, take out cutter 3, rotate clamping plate 10, clamping plate 10 drives latin 9, make latin 9 slide perpendicularly in thread groove A8 that cutter 3 was inside seted up, after latin 9 takes out from thread groove A8, can pull cutter 3, carry out cutter 3 and change, through changing cutter 3, the shield machine of being convenient for normally works, shield machine's work efficiency has been improved.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (10)
1. The utility model provides a shield constructs quick-witted cutting blade that high strength is stand wear and tear, includes blade disc (1) and limiting plate (18), its characterized in that, install hobbing cutter (2) and cutter (3) on blade disc (1), hobbing cutter (2) and cutter (3) all are provided with the multiunit, sleeve (4) are installed to cutter (3) bottom, install supplementary clamp ring (5) in sleeve (4), cutter (3) inside grafting has latin (9), splint (10) are installed to latin (9) bottom, it is provided with screw rod (22) to run through in splint (10), rotatory piece (20) are installed to screw rod (22) one end, buffer block (16) are pegged graft on limiting plate (18) to screw rod (22) other end, install buffer board (24) in buffer block (16), bumper shock absorber (23) are installed to buffer board (24) bottom, shock absorber (23) are provided with the multiunit, shock absorber (23) comprise transfer rod (25), compression spring (26), damping piece (27) and slide (28), damping piece (27) fixed mounting is in buffer block (16) bottom, damping piece (27) internally mounted has slide (28), it has transfer rod (25) to peg graft on slide (28), install compression spring (26) on transfer rod (25), install connecting rod (17) on limiting plate (18), the connecting rod (17) other end is installed, supporting shoe (13) are installed to the buffer block (16) other end, cutter (3) run through supporting shoe (13) and extend to outside limiting plate (18).
2. The cutting blade of the shield tunneling machine with high strength and wear resistance as claimed in claim 1, wherein a cavity (6) is formed in the cutting blade (3), and a wear sensor (7) is installed in the cavity (6).
3. The high-strength wear-resistant cutting blade of the shield tunneling machine according to claim 1, wherein the cutting knife (3) is internally provided with a thread groove A (8), the latin (9) is externally provided with a thread, and the thread formed on the external of the latin (9) is matched with the thread groove A (8).
4. The cutting blade of the shield tunneling machine with high strength and wear resistance as claimed in claim 1, wherein the clamping plate (10) is provided with a thread groove B (11), the limiting plate (18) is provided with a thread groove C (19), and the outer wall of the screw rod (22) is provided with threads matched with the thread groove B (11) and the thread groove C (19).
5. The cutting blade of the shield tunneling machine with high strength and wear resistance as claimed in claim 1, wherein a mounting groove (12) is formed in the cutter head (1), and a sleeve (4) is inserted into the mounting groove (12).
6. A high strength wear resistant shield tunneling machine cutting blade according to claim 1, characterized by the fact that the rotating block (20) side wall is fitted with a circular washer (21).
7. The cutting blade of the shield tunneling machine with high strength and wear resistance as claimed in claim 1, wherein a chute A (14) is formed on the supporting block (13), and a closing valve (15) is vertically and slidably connected in the chute A (14).
8. The high-strength wear-resistant cutting blade of the shield tunneling machine according to claim 1, wherein a sliding groove B (29) is formed in the damping block (27), a sliding plate (28) is vertically and slidably connected in the sliding groove B (29), a plurality of groups of return springs (30) are mounted at the bottom in the damping block (27), and the return springs (30) are located at the bottom of the sliding plate (28).
9. The high-strength wear-resistant shield tunneling machine cutting blade of claim 1, wherein the cutter head (1) is made of high-carbon steel, the internal substrate of the cutter (3) is a trapezoidal alloy base block (35), the periphery of the trapezoidal alloy base block (35) is coated with a stainless steel net (31), a ceramic particle block (32) is embedded in the stainless steel net (31) in a high-temperature fusion manner, a chromium alloy casting layer (33) is formed on the cutter (3) and located on the ceramic particle block (32) and the periphery of the stainless steel net (31) in a high-temperature fusion manner, and a tungsten alloy layer (34) is coated on the periphery of the chromium alloy casting layer (33).
10. The high strength wear resistant shield tunneling machine cutting blade of claim 9, wherein the trapezoidal alloy base block (35) is formed by melt processing high carbon steel, aluminum metal and tungsten metal, and the ratio of parts by weight of the high carbon steel, the aluminum metal and the tungsten metal is 3: 5: 2, the chromium alloy casting layer (33) is formed by melting high-carbon steel, metal tungsten and metal chromium, and the high-carbon steel, the metal tungsten and the metal chromium are used in a weight ratio of 1: 1: 3, the tungsten alloy layer (34) is formed by melting metal chromium and metal tungsten, and the metal chromium and the metal tungsten are used according to the weight ratio of 3: 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111076060.8A CN114033405A (en) | 2021-09-14 | 2021-09-14 | High-strength wear-resistant shield tunneling machine cutting blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111076060.8A CN114033405A (en) | 2021-09-14 | 2021-09-14 | High-strength wear-resistant shield tunneling machine cutting blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114033405A true CN114033405A (en) | 2022-02-11 |
Family
ID=80134398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111076060.8A Withdrawn CN114033405A (en) | 2021-09-14 | 2021-09-14 | High-strength wear-resistant shield tunneling machine cutting blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114033405A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117216862A (en) * | 2023-11-09 | 2023-12-12 | 湖南大学 | Three-dimensional shield tunnel dynamic analysis model based on fiber beam unit |
-
2021
- 2021-09-14 CN CN202111076060.8A patent/CN114033405A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117216862A (en) * | 2023-11-09 | 2023-12-12 | 湖南大学 | Three-dimensional shield tunnel dynamic analysis model based on fiber beam unit |
| CN117216862B (en) * | 2023-11-09 | 2024-02-02 | 湖南大学 | Three-dimensional shield tunnel dynamic analysis model based on fiber beam unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Maidl et al. | Hardrock tunnel boring machines | |
| US9234399B2 (en) | Impregnated drill bits with integrated reamers | |
| US8033616B2 (en) | Braze thickness control | |
| RU2763277C1 (en) | Cutting assembly | |
| CN110273650B (en) | Diamond bit with flexible cutting structure | |
| NO161870B (en) | BOREA SCHEME. | |
| US9500036B2 (en) | Single-waterway drill bits and systems for using same | |
| CN107338438A (en) | A kind of wear-resisting laser cladding layer of hobboing cutter cutter ring and preparation method thereof | |
| CN114033405A (en) | High-strength wear-resistant shield tunneling machine cutting blade | |
| GB2396636A (en) | An earth boring bit and method of forming a bit | |
| CN205558806U (en) | It bores to dig quick -witted high -pressure water injection rock -entering of stake soon | |
| CN203729885U (en) | Soldering nickel-based impregnated diamond bit for deep hard-rock drilling | |
| CN212642599U (en) | Mining reaming bit | |
| CN201363146Y (en) | Damping dust-falling pick-like bit | |
| CN205558805U (en) | It bores to dig quick -witted high -pressure water injection rock -entering of stake soon | |
| CN110145238A (en) | A kind of low torque diamond bit | |
| CN210395061U (en) | Road engineering cutter | |
| CN111963183A (en) | Shield cutter structure suitable for upper soft and lower hard stratum | |
| CN220849673U (en) | Development machine cutting pick capable of improving exploitation efficiency | |
| CN219808960U (en) | Tunneling drill bit for mining | |
| CN111997668A (en) | Impact type hydraulic jumbolter, control method and application | |
| CN100595418C (en) | Stone inclusion soil abrasive-proof anti-impact drill bit | |
| CN212803237U (en) | Shield cutter structure suitable for upper soft and lower hard stratum | |
| CN109209421A (en) | Magnetic force change type tool changing drilling method for soft or hard stratum | |
| CN216305819U (en) | Anchor cable pore-forming equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220211 |