CN107725049A - A kind of anti-blocking hydraulic pick device of auto-pressurizing - Google Patents

A kind of anti-blocking hydraulic pick device of auto-pressurizing Download PDF

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Publication number
CN107725049A
CN107725049A CN201711046077.2A CN201711046077A CN107725049A CN 107725049 A CN107725049 A CN 107725049A CN 201711046077 A CN201711046077 A CN 201711046077A CN 107725049 A CN107725049 A CN 107725049A
Authority
CN
China
Prior art keywords
pick
toothholder
cylindrical hole
sleeve
under
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.)
Granted
Application number
CN201711046077.2A
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Chinese (zh)
Other versions
CN107725049B (en
Inventor
刘晓辉
李旋
汪学斌
田明锐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changan University
Original Assignee
Changan University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changan University filed Critical Changan University
Priority to CN201711046077.2A priority Critical patent/CN107725049B/en
Priority claimed from CN201711046077.2A external-priority patent/CN107725049B/en
Publication of CN107725049A publication Critical patent/CN107725049A/en
Application granted granted Critical
Publication of CN107725049B publication Critical patent/CN107725049B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18Mining picks; Holders therefor
    • E21C35/187Mining picks; Holders therefor with arrangement of fluid-spraying nozzles
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088Rotary tools, e.g. milling drums
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18Mining picks; Holders therefor
    • E21C35/19Means for fixing picks or holders
    • E21C35/197Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements

Abstract

The present invention relates to a kind of anti-blocking hydraulic pick device of auto-pressurizing, including pick, hydraulic intensifier and attachment means;Pick includes being sequentially communicated from the bottom up and cylindrical hole under pick that diameter is sequentially reduced, cylindrical hole, cavity and center flow channels on pick, the outlet of hydraulic intensifier is stretched on pick in cylindrical hole through cylindrical hole under pick, and hydraulic intensifier is fixedly connected with pick by attachment means.The present invention is sequentially communicated and cylindrical hole, cavity and center flow channels that diameter is sequentially reduced by being set in pick, form path, again hydraulic intensifier is fixedly connected with by attachment means, during pick cutting, water under high pressure is exported by hydraulic intensifier, sprayed by pick cavity and center flow channels, available for aiding in cut;In the case of pick blocking, water under high pressure can be constantly pressurized by hydraulic intensifier, wash away tamper, prevent from blocking;Its is simple and compact for structure, and reliability is high, and using effect is good.

Description

A kind of anti-blocking hydraulic pick device of auto-pressurizing
Technical field
The present invention relates to anti-blocking hydraulic pick field, and in particular to a kind of anti-blocking hydraulic pick device of auto-pressurizing.
Background technology
Work for the development machine for tunneling and exploiting, drum shearer, pavement milling machine and ditcher etc. Mechanism, difficult construction operating mode is often met with, construction object intensity is higher, digging armament-related work mechanism and cutter is rushed during construction Hit, wear increasing.Operating mechanism is the critical piece in construction process, and the pick being installed on it directly with construct object Interaction, its life-span also directly affect the Cutting Performance of operating mechanism, and the service life for improving pick is to improve fitting for equipment The key of answering property and reliability, therefore, water jet auxiliary cut was widely used in the field to reduce cut tooth losing efficiency in recent years, but Problem is wherein still suffered from, such as in the case of water jet channel arrangement is at pick center, pick is easily applied object blocking, Therefore it is eager to need to carry out the anti-blocking research to hydraulic pick, develop a kind of new anti-blocking hydraulic pick device.
The content of the invention
It is an object of the invention to overcome problems of the prior art, there is provided a kind of anti-blocking hydraulic pick of auto-pressurizing Device, it can be pressurized in the case of pick blocking and wash away tamper.
In order to achieve the above object, the present invention adopts the following technical scheme that:
Including pick, hydraulic intensifier and attachment means;Pick includes being sequentially communicated from the bottom up and diameter is sequentially reduced Pick under cylindrical hole, cylindrical hole, cavity and center flow channels on pick, the outlet of hydraulic intensifier is stretched into through cylindrical hole under pick On pick in cylindrical hole, hydraulic intensifier is fixedly connected with pick by attachment means.
Further, rubber bush is set between cylindrical hole under hydraulic intensifier and pick.
Further, two seals groove is provided with pick in the side wall of cylindrical hole, sealing ring is installed in seal groove.
Further, attachment means include toothholder, toothholder end plate, permanent tooth sleeve and the shell fragment for being arranged on pick lower end, The permanent tooth groove for blocking shell fragment is offered on the madial wall of permanent tooth sleeve;
Toothholder includes on the toothholder that is sequentially communicated from top to bottom in cylindrical hole, toothholder under cylindrical hole, toothholder cylindrical hole and heavy Groove, the diameter of cylindrical hole is sequentially reduced in cylindrical hole and toothholder under cylindrical hole, toothholder on toothholder;The diameter of deep gouge is more than under toothholder The diameter of cylindrical hole;
The bottom of pick is stretched on toothholder in cylindrical hole, clip clamping permanent tooth groove, and permanent tooth sleeve is arranged on cylinder under toothholder Kong Zhong, the deep equality of cylindrical hole under the height and toothholder of permanent tooth sleeve;Toothholder end plate is arranged in deep gouge and fixed with toothholder It is connected.
Further, mode connects for screw is used between toothholder end cap and toothholder.
Further, toothholder through hole is provided with toothholder, sleeve through hole is offered on permanent tooth sleeve, toothholder through hole and sleeve lead to Hole can connect and face shell fragment.
Further, slotted eye is opened up on toothholder end cap, is provided for holding out against the convex of hydraulic intensifier on the outside of the upper end of slotted eye Platform.
Further, also it is located in permanent tooth sleeve including cylindrical hole under cylindrical hole on sleeve and sleeve, permanent tooth groove on sleeve Under cylindrical hole and sleeve between cylindrical hole, in clip clamping permanent tooth groove, cylindrical hole under cylindrical hole, shell fragment and sleeve under pick Madial wall flushes.
Compared with prior art, the present invention has technique effect beneficial below:
The present invention is sequentially communicated and cylindrical hole, cavity and center flow channels that diameter is sequentially reduced by being set in pick, Path is formed, then hydraulic intensifier is fixedly connected with by attachment means, during pick cutting, water under high pressure passes through hydraulic booster Device exports, and is sprayed by pick cavity and center flow channels, available for aiding in cut;In the case of pick blocking, water under high pressure can Constantly it is pressurized by hydraulic intensifier, washes away tamper, prevents from blocking;Its is simple and compact for structure, and reliability is high, using effect It is good.The present invention forms the anti-blocking hydraulic pick device of auto-pressurizing, is particularly suitable for use in tunnel and is mined with the development machine of exploitation, drum-type In the operating mechanism of machine, pavement milling machine and ditcher etc..
Further, the present invention while playing sealing function, can preferably strengthen connecting by setting rubber bush Steadiness.
Further, the present invention ensures sealing good between pick and hydraulic intensifier, ensured by setting sealing ring From pressurized effect.
Further, attachment means of the present invention are reliable and stable, and the stability of pick work is effectively ensured.
Further, the present invention can use thimble etc. to make shell fragment ejection solid by setting toothholder through hole and sleeve through hole Teeth groove, to dismantle.
Brief description of the drawings
Fig. 1 is the anti-blocking hydraulic pick sectional view of auto-pressurizing of the present invention;
Fig. 2 (a) is the pick sectional view of the present invention;
Fig. 2 (b) is the pick front view of the present invention;
Fig. 3 is the toothholder sectional view of the present invention;
Fig. 4 is the toothholder end cap sectional view of the present invention;
Fig. 5 is the permanent tooth sleeve sectional view of the present invention.
In figure:1- picks;Cylindrical hole under 1-1- picks;Cylindrical hole on 1-2- picks;1-3- seal grooves;1-4- cavitys;1- 5- center flow channels;1-6- shell fragments;2- hydraulic intensifiers;3- toothholders;Cylindrical hole on 3-1- toothholders;Cylindrical hole in 3-2- toothholders;3- Cylindrical hole under 3- toothholders;3-4- deep gouges;3-5- screw holes;3-6- toothholder through holes;4- toothholder end plates;4-1- boss;4-2- slotted eyes; 4-3- bolts hole;5- rubber bush;6- permanent tooth sleeves;Cylindrical hole on 6-1- sleeves;6-2- permanent tooth grooves;Cylinder under 6-3- sleeves Hole;6-4- sleeve through hole;7- sealing rings.
Embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
Below with the definition of structure shown in pick in Fig. 1 up and down, only for more easily describing the present invention, rather than to this hair Bright restriction;Meanwhile following cylindrical hole can also be substituted for other such as square hole according to the port of export shape of hydraulic intensifier Deng.
Referring to Fig. 1, the present invention includes pick 1, hydraulic intensifier 2 and attachment means.
As shown in Fig. 2 (a) and Fig. 2 (b), under the pick that pick 1 includes being sequentially communicated from the bottom up and diameter is sequentially reduced Cylindrical hole 1-2, cavity 1-4 and center flow channels 1-5 on cylindrical hole 1-1, pick, the outlet of hydraulic intensifier 2 is through cylinder under pick Hole 1-1 is stretched on pick in cylindrical hole 1-2, and hydraulic intensifier 2 is fixedly connected with pick 1 by attachment means.
Rubber bush 5 is set under hydraulic intensifier 2 and pick between cylindrical hole 1-1.On pick in cylindrical hole 1-2 side wall It is provided with installation sealing ring 7 in two seals groove 1-3, seal groove 1-3.
Attachment means include toothholder 3, toothholder end plate 4, permanent tooth sleeve 6 and the shell fragment 1-6 for being arranged on the lower end of pick 1.
As shown in figure 3, toothholder 3 include on the toothholder that is sequentially communicated from top to bottom cylindrical hole 3-2 in cylindrical hole 3-1, toothholder, Cylindrical hole 3-3 and deep gouge 3-4 under toothholder, on toothholder under cylindrical hole 3-1, toothholder in cylindrical hole 3-3 and toothholder cylindrical hole 3-2 it is straight Footpath is sequentially reduced;Deep gouge 3-4 diameter is more than the diameter of cylindrical hole 3-3 under toothholder.
The bottom of the pick 1 combined with rubber bush 5 and hydraulic intensifier 2 is stretched on toothholder in cylindrical hole 3-1, pick 1 The shell fragment 1-6 of lower end is arranged under toothholder in cylindrical hole 3-3 by the permanent tooth groove 6-2 clampings on permanent tooth sleeve 6, permanent tooth sleeve 6, Gu Cylindrical hole 3-3 deep equality under the height and toothholder of tooth sleeve 6;Toothholder end plate 4 is arranged in deep gouge 3-4 and consolidated with toothholder 3 It is fixed to be connected, to carry out axial restraint to permanent tooth sleeve 6.
As shown in figure 4, opening up slotted eye 4-2 on toothholder end cap 4, slotted eye 4-2 is easy to liquid to coordinate with hydraulic intensifier 2 Into hydraulic intensifier 2;It is provided for holding out against the boss 4-1 of hydraulic intensifier 2 on the outside of slotted eye 4-2 upper end.
Screw hole 3-5 is opened up on toothholder 3, bolt hole 4-3 is opened up on toothholder end cap 4, is adopted between toothholder end cap 4 and toothholder 3 Use mode connects for screw.
As shown in figure 5, the permanent tooth groove 6-2 for blocking shell fragment 1-6, permanent tooth set are offered on the madial wall of permanent tooth sleeve 6 Also it is located at cylindrical hole 6-1 and set on sleeve including cylindrical hole 6-3 under cylindrical hole 6-1 on sleeve and sleeve, permanent tooth groove 6-2 in cylinder 6 Between the lower cylindrical hole 6-3 of cylinder, in shell fragment 1-6 clamping permanent tooth groove 6-2, circle under cylindrical hole 1-1, shell fragment 1-6 and sleeve under pick Post holes 6-3 madial wall flushes.
Toothholder through hole 3-6 is provided with toothholder 3, sleeve through hole 6-4, toothholder through hole 3-6 and sleeve are offered on permanent tooth sleeve 6 Through hole 6-4 can be connected and face shell fragment 1-6.Two through hole need to be alignd during installation, thimble etc. can be used to make bullet during to dismantle Piece 1-6 ejection permanent tooth grooves 6-2.
The present invention main course of work and principle:The upper end of hydraulic intensifier 2 is cased with rubber bush 5 and loads pick 1 In cylindrical hole, while sealed by sealing ring 7;The tooth body of pick 1 loads cylindrical hole 3-1 on toothholder, and cylindrical hole 3-3 loads admittedly under toothholder Tooth sleeve 6, permanent tooth groove 6-2 is provided with permanent tooth sleeve 6, for the shell fragment 1-6 of the lower end of clamping pick 1, the lower end of toothholder 3 is equipped with toothholder End plate 4 is used to limit play of the permanent tooth sleeve 6 in toothholder 3.During work, the lower end of hydraulic intensifier 2 is passed through water under high pressure, in pick 1 it is not stifled in the case of, water under high pressure is exported by hydraulic intensifier 2, is sprayed, can be used by pick cavity 1-4 and center flow channels 1-5 In auxiliary cut;In the case of 1 blocking of pick, water under high pressure can be constantly pressurized by hydraulic intensifier 2, wash away tamper, be prevented Only block.
The invention provides a kind of new, simple and compact for structure, anti-blocking hydraulic pick device, in the course of the work, Cut is aided in using water under high pressure, and there is blocking-proof result.

Claims (8)

  1. A kind of 1. anti-blocking hydraulic pick device of auto-pressurizing, it is characterised in that:Including pick (1), hydraulic intensifier (2) and connection Device;Pick (1) includes being sequentially communicated from the bottom up and cylindrical hole (1-1) under pick that diameter is sequentially reduced, cylinder on pick Hole (1-2), cavity (1-4) and center flow channels (1-5), the outlet of hydraulic intensifier (2) is stretched into through cylindrical hole under pick (1-1) to be cut On tooth in cylindrical hole (1-2), hydraulic intensifier (2) is fixedly connected with pick (1) by attachment means.
  2. A kind of 2. anti-blocking hydraulic pick device of auto-pressurizing according to claim 1, it is characterised in that:Hydraulic intensifier (2) rubber bush (5) and under pick is set between cylindrical hole (1-1).
  3. A kind of 3. anti-blocking hydraulic pick device of auto-pressurizing according to claim 1, it is characterised in that:Cylindrical hole on pick Two seals groove (1-3) is provided with the side wall of (1-2), sealing ring (7) is installed in seal groove (1-3).
  4. A kind of 4. anti-blocking hydraulic pick device of auto-pressurizing according to claim 1, it is characterised in that:Attachment means include Toothholder (3), toothholder end plate (4), permanent tooth sleeve (6) and the shell fragment (1-6) for being arranged on pick (1) lower end, permanent tooth sleeve (6) The permanent tooth groove (6-2) for blocking shell fragment (1-6) is offered on madial wall;
    Justify on the toothholder that toothholder (3) includes being sequentially communicated from top to bottom in cylindrical hole (3-1), toothholder under cylindrical hole (3-2), toothholder Post holes (3-3) and deep gouge (3-4), cylindrical hole (3-2) in cylindrical hole (3-3) and toothholder under cylindrical hole (3-1), toothholder on toothholder Diameter is sequentially reduced;The diameter of deep gouge (3-4) is more than the diameter of cylindrical hole (3-3) under toothholder;
    The bottom of pick (1) is stretched into cylindrical hole on toothholder (3-1), shell fragment (1-6) clamping permanent tooth groove (6-2), permanent tooth sleeve (6) In cylindrical hole under toothholder (3-3), the deep equality of cylindrical hole (3-3) under the height and toothholder of permanent tooth sleeve (6);Toothholder End plate (4) is arranged in deep gouge (3-4) and is fixedly linked with toothholder (3).
  5. A kind of 5. anti-blocking hydraulic pick device of auto-pressurizing according to claim 4, it is characterised in that:Toothholder end cap (4) Mode connects for screw is used between toothholder (3).
  6. A kind of 6. anti-blocking hydraulic pick device of auto-pressurizing according to claim 4, it is characterised in that:Toothholder is opened on (3) Block hole (3-6) with teeth, sleeve through hole (6-4), toothholder through hole (3-6) and sleeve through hole (6-4) are offered on permanent tooth sleeve (6) It can connect and face shell fragment (1-6).
  7. A kind of 7. anti-blocking hydraulic pick device of auto-pressurizing according to claim 4, it is characterised in that:Toothholder end cap (4) On open up slotted eye (4-2), be provided for holding out against the boss (4-1) of hydraulic intensifier (2) on the outside of the upper end of slotted eye (4-2).
  8. A kind of 8. anti-blocking hydraulic pick device of auto-pressurizing according to claim 4, it is characterised in that:Permanent tooth sleeve (6) Inside also it is located at cylindrical hole (6-1) on sleeve including cylindrical hole (6-3) under cylindrical hole (6-1) on sleeve and sleeve, permanent tooth groove (6-2) And under sleeve between cylindrical hole (6-3), in shell fragment (1-6) clamping permanent tooth groove (6-2), cylindrical hole (1-1), shell fragment under pick The madial wall of cylindrical hole (6-3) flushes under (1-6) and sleeve.
CN201711046077.2A 2017-10-31 Self-pressurization type anti-blocking hydraulic cutting pick device Active CN107725049B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711046077.2A CN107725049B (en) 2017-10-31 Self-pressurization type anti-blocking hydraulic cutting pick device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711046077.2A CN107725049B (en) 2017-10-31 Self-pressurization type anti-blocking hydraulic cutting pick device

Publications (2)

Publication Number Publication Date
CN107725049A true CN107725049A (en) 2018-02-23
CN107725049B CN107725049B (en) 2024-05-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110735646A (en) * 2019-09-24 2020-01-31 中国地质大学(武汉) TBM high-voltage pulse water jet auxiliary rock breaking device
CN112282754A (en) * 2020-10-29 2021-01-29 徐州中矿汇弘矿山设备有限公司 Novel tooth base and tooth boot system
CN117552784A (en) * 2024-01-11 2024-02-13 大同市同华矿机制造有限责任公司 Cutting tool bit and cutting drum

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251109A (en) * 1979-10-03 1981-02-17 The United States Of America As Represented By The Secretary Of The Interior Dust controlling method using a coal cutter bit
GB8612984D0 (en) * 1986-05-28 1986-07-02 G D M & C Ltd Mineral mining apparatus
CN85100395A (en) * 1985-04-01 1986-08-27 长沙矿山研究院 Super high pressure liquid booster
US5738415A (en) * 1994-01-05 1998-04-14 Minnovation Limited Pick holder and fixing sleeve for an extraction machine
CN101956554A (en) * 2009-07-13 2011-01-26 米诺维森有限公司 Spray module and the pick box that is provided with this spray module
CN102172197A (en) * 2011-03-28 2011-09-07 中国农业科学院农田灌溉研究所 Impulse type drip irrigation system
WO2013048241A1 (en) * 2011-09-28 2013-04-04 Ihc Holland Ie B.V. Cutting device for an underwater excavation system
CN103174421A (en) * 2013-03-11 2013-06-26 中国矿业大学 Automatic hydraulic rock breaking pick
CN204699860U (en) * 2015-05-06 2015-10-14 石家庄中煤装备制造股份有限公司 A kind of development machine anti-clogging inner spraying nozzle
CN106050232A (en) * 2016-06-22 2016-10-26 中国矿业大学 Water-saving efficiency-increased hydraulic cutting pick
CN106837327A (en) * 2017-04-07 2017-06-13 中国矿业大学 A kind of water-saving and synergistic automatic control hydraulic cutterhead
CN207363662U (en) * 2017-10-31 2018-05-15 长安大学 Anti-blocking hydraulic pick device

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251109A (en) * 1979-10-03 1981-02-17 The United States Of America As Represented By The Secretary Of The Interior Dust controlling method using a coal cutter bit
CN85100395A (en) * 1985-04-01 1986-08-27 长沙矿山研究院 Super high pressure liquid booster
GB8612984D0 (en) * 1986-05-28 1986-07-02 G D M & C Ltd Mineral mining apparatus
US5738415A (en) * 1994-01-05 1998-04-14 Minnovation Limited Pick holder and fixing sleeve for an extraction machine
CN101956554A (en) * 2009-07-13 2011-01-26 米诺维森有限公司 Spray module and the pick box that is provided with this spray module
CN102172197A (en) * 2011-03-28 2011-09-07 中国农业科学院农田灌溉研究所 Impulse type drip irrigation system
WO2013048241A1 (en) * 2011-09-28 2013-04-04 Ihc Holland Ie B.V. Cutting device for an underwater excavation system
CN103174421A (en) * 2013-03-11 2013-06-26 中国矿业大学 Automatic hydraulic rock breaking pick
CN204699860U (en) * 2015-05-06 2015-10-14 石家庄中煤装备制造股份有限公司 A kind of development machine anti-clogging inner spraying nozzle
CN106050232A (en) * 2016-06-22 2016-10-26 中国矿业大学 Water-saving efficiency-increased hydraulic cutting pick
CN106837327A (en) * 2017-04-07 2017-06-13 中国矿业大学 A kind of water-saving and synergistic automatic control hydraulic cutterhead
CN207363662U (en) * 2017-10-31 2018-05-15 长安大学 Anti-blocking hydraulic pick device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110735646A (en) * 2019-09-24 2020-01-31 中国地质大学(武汉) TBM high-voltage pulse water jet auxiliary rock breaking device
CN112282754A (en) * 2020-10-29 2021-01-29 徐州中矿汇弘矿山设备有限公司 Novel tooth base and tooth boot system
CN112282754B (en) * 2020-10-29 2021-06-01 徐州中矿汇弘矿山设备有限公司 Tooth holder and tooth boot system
CN117552784A (en) * 2024-01-11 2024-02-13 大同市同华矿机制造有限责任公司 Cutting tool bit and cutting drum
CN117552784B (en) * 2024-01-11 2024-03-22 大同市同华矿机制造有限责任公司 Cutting tool bit and cutting drum

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