CN104453888A - Cutting mechanism and heading machine - Google Patents
Cutting mechanism and heading machine Download PDFInfo
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- CN104453888A CN104453888A CN201410606029.4A CN201410606029A CN104453888A CN 104453888 A CN104453888 A CN 104453888A CN 201410606029 A CN201410606029 A CN 201410606029A CN 104453888 A CN104453888 A CN 104453888A
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- oil
- pipeline
- spilling
- cutting mechanism
- sealing
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- 238000005520 cutting process Methods 0.000 title claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 70
- 238000007667 floating Methods 0.000 claims abstract description 26
- 238000000605 extraction Methods 0.000 claims description 39
- 239000012530 fluid Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 description 13
- 239000000428 dust Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000003245 coal Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/10—Rods; Drums
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- 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Road Repair (AREA)
Abstract
The invention discloses a cutting mechanism and a heading machine. The cutting mechanism comprises a cutting head, a telescopic part, a bearing and a floating sealing frame, wherein an oil inlet path, an oil outlet path and an oil overflow path are formed in the floating sealing frame; the oil inlet path, the oil outlet path and the oil overflow path are communicated with a bearing cavity of the bearing; the cutting mechanism further comprises an oil inlet pipeline, an oil outlet pipeline and an oil overflow pipeline which are positioned between a telescopic protective barrel and a telescopic outer barrel of the telescopic part, or formed in the barrel wall of the telescopic protective barrel; one ends of the oil inlet pipeline, the oil outlet pipeline and the oil overflow pipeline respectively correspondingly communicated with the oil inlet path, the oil outlet path and the oil overflow path, and the other ends of the oil inlet pipeline, the oil outlet pipeline and the oil overflow pipeline are communicated with the outer part of the telescopic protective barrel; an oil inlet sealing part, an oil outlet sealing part and an oil overflow sealing part which are respectively arranged on end openings of the other ends of the oil inlet pipeline, the oil outlet pipeline and the oil overflow pipeline are used for selectively communicating or sealing the corresponding pipelines with the outside. The cutting mechanism has the advantages of convenience in oil injecting operation and oil exhausting operation, and the service life of the bearing is prolonged.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of cutting mechanism and development machine.
Background technology
Development machine is the machine for digging straight underground passage, primarily of cutting mechanism, loads the composition such as transshipment acitivity, walking mechanism.In the course of work, along with walking mechanism is pushed ahead, the continuous fractured rock of the cutterhead in cutting mechanism, and detritus is transported.Development machine have safety, efficiently with become the advantages such as lane quality is good.Driving and back production are the important production links of coal production, and the speedy drivage of coal mine roadway is the key measures that colliery ensures mine stable high yield.Extraction technique and equipment thereof directly have influence on ability and the safety of coal production.In recent years, along with the fast development of coal in China industry, the improvement of development machine performance is more and more subject to people's attention.Wherein, cutting mechanism is one of important mechanism of development machine, and it has material impact to drivage efficiency.
The cutting mechanism of development machine is primarily of compositions such as cutterhead, cutting arm, cut reductor, cutting motors.Cutting arm can be divided into telescopic cutting arm again, i.e. pars contractilis, and fixed cutting arm.Wherein, the structure of pars contractilis is comparatively complicated, and it comprises flexible protection cylinder, outer telescopic tube and flexible inner core from outside to inside successively.In the course of work, relatively rotate between cutterhead and pars contractilis, therefore need to arrange rotatable parts-bearing, and rotary seal-floating seal frame.The inner ring of bearing is connected with main shaft, and moment of torsion is passed to cutterhead by main shaft; Outer ring is connected with flexible inner core.Floating seal erection is placed in the head end of flexible protection cylinder and flexible inner core; floating seal frame is processed with oil input channel, oil spilling road and oil expulsion channel; these oil ducts are all communicated with bearing bore, and above-mentioned oil duct is used for lubricating bearing, or is discharged by endomorphosed for bearing lubrication oil.Oil input channel oil-in is positioned at directly over floating seal frame on periphery, and oil spilling road oil spilling mouth is positioned on floating seal frame on the periphery of side, and oil expulsion channel oil drain out to be positioned at immediately below floating seal frame on periphery.Oil-in, oil spilling mouth and oil drain out place are screwed with the first plug screw.Meanwhile, cutterhead is processed with an oilhole corresponding with above-mentioned oil duct lengthwise position, this hole is screwed with the second plug screw.During oiling, first back out the second plug screw, then rotate cutterhead and align with oil-in to its oilhole, back out first plug screw at oil-in place.Then then rotate cutterhead to align with oil spilling mouth to its oilhole, back out the first plug screw of excessive oil port, then cutterhead rotation is alignd with oil-in to its oilhole, when having oil to flow out to oil-in oiling to oil spilling mouth.If the existing rotten lubrication oil in oiling fore bearing chamber need bleed off, then also need cutterhead to be rotated its oilhole and align with oil drain out, the lubrication oil that will go bad after backing out first oilhole at oil drain out place is discharged.The defect of this kind of structure is:
On the one hand, need artificial repeatedly rotation cutterhead alignment oil duct hydraulic fluid port in oiling process, complex operation, wastes time and energy, and affects operating efficiency.On the other hand, extraneous dust unavoidably can enter into floating seal frame place by the gap between cutterhead afterbody and pars contractilis, cause part dust can be piled up in floating seal frame oil-in and excessive oil port, and dust not easy to clean herein, therefore easily entering bearing bore by oil-in and oil spilling mouth turning on dust in plug screw and oiling process, bearing premature failure is caused.
Summary of the invention
In view of this, the present invention a kind of oiling is proposed and oil extraction easy to operate, and contribute to the cutting mechanism and the development machine that extend bearing application life.For achieving the above object, technical scheme of the present invention is achieved in that
On the one hand, the invention provides a kind of cutting mechanism, comprise cutterhead, pars contractilis, bearing and floating seal frame, described floating seal frame is provided with: oil input channel, oil expulsion channel and oil spilling road; Described oil input channel, oil expulsion channel and oil spilling road all communicate with the bearing bore of described bearing; Described cutting mechanism also comprises: inflow pipeline, oil-drain pipe and oil spilling pipeline; Described inflow pipeline, oil-drain pipe and oil spilling pipeline between the flexible protection cylinder and outer telescopic tube of described pars contractilis, or are formed in described flexible protection cylinder barrel; One end of described inflow pipeline, oil-drain pipe and oil spilling pipeline communicates with described oil input channel, oil expulsion channel and oil spilling road respectively, and the other end all communicates with the outside of described flexible protection cylinder; Be arranged at the oil-feed sealing of the port of the other end of described inflow pipeline, oil-drain pipe and oil spilling pipeline, oil extraction sealing and oil spilling sealing respectively, be in communication with the outside for optionally making corresponding pipeline or seal.
Further, described oil input channel, oil expulsion channel include with oil spilling road: the inclination oil duct section be communicated with in turn, vertically oil duct section and horizontal oil duct section; Described inclination oil duct section communicates with described bearing bore, and described horizontal oil duct section communicates with corresponding pipeline; The described arranged direction of vertical oil duct section and the axes normal of described bearing, horizontal oil duct section is parallel with the axis of described bearing.
Further, described inflow pipeline, oil-drain pipe and oil-feed are between flexible protection cylinder and outer telescopic tube; Described flexible protection cylinder is respectively arranged with oil-feed connecting hole, oil extraction connecting hole and oil spilling connecting hole; Described inflow pipeline, oil-drain pipe include with oil spilling pipeline: the horizontal pipe be connected and circular arc pipeline; The described horizontal pipe oil duct corresponding to described oil input channel, oil expulsion channel and oil spilling road is communicated with, and circular arc pipeline is fed through corresponding connecting hole on described flexible protection cylinder.
Further, described oil-feed sealing, oil extraction sealing and oil spilling sealing include: junction plate, be fixedly installed on described flexible protection cylinder on corresponding connecting hole, and offer the through hole worn for corresponding pipeline, the diameter of described through hole is less than the diameter of described connecting hole; Hydraulic fluid port seat, is arranged at described junction plate end face, and described hydraulic fluid port seat is provided with plug screw; The end face of described pipeline and described junction plate, and form seal cavity between described plug screw.
Further, welded seal is passed through between described through hole and corresponding pipeline.
Further, described inflow pipeline, oil-drain pipe and oil spilling pipeline are stainless steel pipes.
Further, described oil-feed connecting hole is opened in the top of described flexible protection cylinder, and described oil extraction connecting hole is opened in the bottom of described flexible protection cylinder.
Further, the oil-feed guard shield, oil extraction guard shield and the oil spilling guard shield that are covered on respectively outside described oil-feed sealing, oil extraction sealing and oil spilling sealing is also comprised.
Further, between described oil input channel and inflow pipeline, between described oil expulsion channel and oil-drain pipe, and be provided with sealing ring between described oil spilling road and oil spilling pipeline.
On the other hand, the present invention also provides a kind of development machine, and it is provided with the cutting mechanism described in above-mentioned any one.
The invention provides a kind of cutting mechanism.In this cutting mechanism; it is outside that oil input channel on floating seal frame, oil expulsion channel and oil spilling road are connected to flexible protection respectively by inflow pipeline, oil-drain pipe and oil spilling pipeline, and optionally communicated with the external world by oil-feed sealing, oil extraction sealing and the oil spilling sealing being arranged at inflow pipeline, oil-drain pipe and oil spilling pipe end or sealed.Relative to existing cutting mechanism, in this cutting mechanism to the oiling of bearing and oil extraction easy and simple to handle, only need opening corresponding sealing, without the need to rotating cutterhead frequently, contributing to increasing work efficiency.Further, the port of inflow pipeline, namely pouring orifice is positioned at the flexible protection tube outer surface of pars contractilis, and be convenient to cleaning, therefore operating personnel can clear up the dust being attached to pouring orifice surface in time.Reduce the probability that introduced contaminants enters bearing bore, contribute to the application life extending bearing.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The partial cutaway schematic at the first visual angle of the cut structure that Fig. 1 provides for the embodiment of the present invention;
The partial cutaway schematic at the second visual angle of the cutting mechanism that Fig. 2 provides for the embodiment of the present invention, the structure of this not shown cutterhead;
Fig. 3 is the partial enlarged drawing at I place in Fig. 1;
Fig. 4 is the partial enlarged drawing at II place in Fig. 1.
Description of reference numerals:
The flexible protection cylinder of 1 cutterhead 2
3 floating seal frame 31 oil input channels
32 oil expulsion channel 33 oil spilling roads
The vertical oil duct section of 301 inclination oil duct section 302
303 horizontal oil duct section 4 bearings
41 inflow pipeline 42 oil-drain pipes
43 oil spilling pipeline 401 horizontal pipes
402 circular arc pipeline 51 oil-feed sealings
52 oil extraction sealing 53 oil spilling sealings
501 junction plate 502 hydraulic fluid port seats
503 plug screw 6 sealing rings
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below in conjunction with accompanying drawing, each preferred embodiment of the present invention is described further.
Refer to Fig. 1 and Fig. 2, the figure shows the structure of the cutting mechanism that the embodiment of the present invention provides.This cutting mechanism, comprises cutterhead 1, pars contractilis, bearing 4 and floating seal frame 3; Floating seal frame 3 is provided with: oil input channel 31, oil expulsion channel 32 and oil spilling road 33; Oil input channel 31, oil expulsion channel 32 and oil spilling road 33 communicate with the bearing bore of bearing 4;
This cutting mechanism also comprises:
Inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43; Wherein, one end of inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43 communicates with above-mentioned oil input channel 31, oil expulsion channel 32 and oil spilling road 33 respectively, and the other end all protects the outside of cylinder 2 to communicate with flexible;
Be arranged at the oil-feed sealing 51 of the port of the other end of above-mentioned inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43, oil extraction sealing 52 and oil spilling sealing 53 respectively, be in communication with the outside for optionally making corresponding pipeline or seal.
In the structural mechanism that the present embodiment provides, the structure of cutterhead 1 and pars contractilis can be same as the prior art, and the bearing 4 between cutterhead 1 and pars contractilis and the setting position of floating seal frame 3 also can be same as the prior art, and the present invention does not hereby repeat.
Floating seal frame 3 is provided with oil duct, and this oil duct comprises oil input channel 31, oil expulsion channel 32 and oil spilling road 33, and the first end of above-mentioned three oil ducts is all communicate with the bearing bore of bearing 4, lubricates bearing 4 for convenient.With existing oil duct unlike: cutting mechanism also comprises pipeline, and this pipeline comprises inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43; Second end of above-mentioned three oil ducts is not communicate with the cylindrical of floating seal frame 3, but communicates with corresponding pipeline-inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43 respectively.Further, above-mentioned three pipelines are optionally communicated with the external world by the sealing (above-mentioned oil-feed sealing 51, oil extraction sealing 52 and oil spilling sealing 53) being arranged at pipe end or are sealed after being fed through again flexible protection cylinder 2.
Adopt the cutting mechanism that the present embodiment provides, the principle of bearing 4 being carried out to oiling and oil extraction is as follows:
When needs oiling, open oil-feed sealing 51 and oil spilling sealing 53, now oil input channel 31 and inflow pipeline 41 communicate with the external world, and oil spilling road 33 and oil spilling pipeline 43 also communicate with the external world simultaneously.After lubrication oil is injected from the port (hereinafter referred to as pouring orifice) of inflow pipeline 41, lubrication oil enters into oil input channel 31 from inflow pipeline 41, then enter into the bearing bore of bearing 4, lubrication oil unnecessary in bearing bore is discharged by oil spilling road 33 and oil spilling passage 43 again successively, when operating personnel observe lubrication oil after port (hereinafter referred to as the oil spilling mouth) outflow of oil spilling passage 34, illustrate that now lubrication oil is sufficient, should stop oiling, oiling is complete.
When finding the deterioration of lubricant in bearing bore, the lubrication oil in bearing bore is needed to discharge, operating personnel open oil extraction sealing 52, and the lubrication oil in bearing bore is discharged, then again according to aforesaid operations oiling from the port (hereinafter referred to as oil drain out) of oil-drain pipe 42.
Relative to existing cutting mechanism, to the oiling of bearing and oil extraction easy and simple to handle, only need opening corresponding sealing, without the need to rotating cutterhead frequently, contributing to increasing work efficiency.Further, the port of inflow pipeline, namely pouring orifice is positioned at the flexible protection tube outer surface of pars contractilis, and be convenient to cleaning, therefore operating personnel can clear up the dust being attached to pouring orifice surface in time.Reduce the probability that introduced contaminants enters bearing bore, contribute to the application life extending bearing.
Refer to Fig. 1 and Fig. 3, the oil input channel 31 in above-mentioned floating seal frame 3, oil expulsion channel 32 can comprise with the concrete structure in oil spilling road 33: the inclination oil duct section 301 be communicated with in turn, vertically oil duct section 302 and horizontal oil duct section 303; Above-mentioned inclination oil duct section 301 communicates with bearing bore, horizontal oil duct section 303 communicates with corresponding pipeline, that is: the horizontal oil duct section 303 of oil input channel 31 communicates with inflow pipeline 41, and the horizontal oil duct section of oil expulsion channel 32 communicates with oil-drain pipe 42, and the horizontal oil duct section in oil spilling road 33 communicates with oil spilling pipeline 43; The arranged direction of vertical oil duct section 302 and the axes normal of bearing 4, horizontal oil duct section 303 parallel with the axis of bearing 4 (for oil input channel 31 in Fig. 3).Those skilled in the art directly can offer above-mentioned oil duct in floating seal frame 3; In addition, consider that existing floating seal frame has offered the inclination oil duct section 301 of said structure and vertical oil duct section 302 usually, therefore for the ease of processing, directly a horizontal oil duct section 303 be connected with vertical oil duct section 302 can be processed on existing floating seal frame.In addition; situation between flexible protection cylinder 2 and outer telescopic tube is arranged at for oil input channel 31, oil expulsion channel 32 and oil spilling road 33; in order to improve above-mentioned three sealings between oil duct and corresponding pipeline; prevent lubrication oil from leaking outside; preferably also between oil input channel 31 and inflow pipeline 41; between oil expulsion channel 32 and oil-drain pipe 42, and sealing ring 6 (referring to Fig. 3) is set between oil spilling road 33 and oil spilling pipeline 43.
Above-mentioned inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43 between flexible protection cylinder 2 and outer telescopic tube, also can be able to be formed in the barrel of flexible protection cylinder 2.Consider that the barrel of flexible protection cylinder 2 is usually relatively thin, not easily offer above-mentioned pipeline.Therefore the embodiment of the present invention preferably adopts the preferred version shown in Fig. 1 and Fig. 2, namely inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43 are between flexible protection cylinder 2 and outer telescopic tube; Above-mentioned three pipelines are preferably welded and fixed with the outer wall of flexible protection cylinder 2.Accordingly; the first end in oil input channel 31, oil expulsion channel 32 and oil spilling road 33 all communicates with the bearing bore of bearing 4; the port of the second end between flexible protection cylinder 2 and outer telescopic tube, and is connected with one end of corresponding pipeline, and the other end of this pipeline is then fed through flexible protection cylinder 2.
In the cutting mechanism structure that the present embodiment provides, inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43 need to be fed through flexible protection cylinder 2, so that carry out the operation of oiling and oil extraction.For this reason, flexible protection cylinder 2 can be respectively arranged with oil-feed connecting hole, oil extraction connecting hole and oil spilling connecting hole.Meanwhile, in order to save inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43 space between flexible protection cylinder 2 and outer telescopic tube, and be convenient to processing, above-mentioned three pipelines can comprise: the horizontal pipe 401 be connected and circular arc pipeline 402; The horizontal oil duct section that the horizontal pipe of each pipeline is corresponding to oil input channel 31, oil expulsion channel 32 and oil spilling road 33 is respectively communicated with, circular arc pipeline is fed through corresponding connecting hole on flexible protection cylinder, that is: the horizontal pipe 401 of inflow pipeline 41 is communicated with oil input channel 31, and circular arc pipeline 402 is through oil-feed connecting hole; The horizontal pipe of oil-drain pipe 42 is communicated with oil expulsion channel 32, and circular arc pipeline is fed through oil extraction connecting hole; The horizontal pipe of oil spilling pipeline 43 is communicated with oil spilling road 33, and circular arc pipeline is fed through oil spilling connecting hole.Because the working environment of development machine is comparatively severe, for preventing tube corrosion, above-mentioned inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43 are preferably stainless steel pipes.
In addition, the position of above-mentioned oil-feed connecting hole, oil extraction connecting hole and oil spilling connecting hole determines the position of pouring orifice, oil drain out and oil spilling mouth.Consider in telescopic process, flexible protection cylinder does not rotate, therefore preferably oil-feed connecting hole is opened in the top of flexible protection cylinder 2, the operation of convenient operation personnel oiling thus; Oil extraction connecting hole is opened in the bottom of flexible protection cylinder 2.Also be convenient to the endomorphosed lubrication oil of bearing thus can flow out in bearing rapidly and thoroughly.
Above-mentioned inflow pipeline 41, oil-drain pipe 42 are communicated with oil spilling road 33 with oil input channel 31, oil expulsion channel 32 respectively with one end of oil spilling pipeline 43, and the other end is respectively arranged with again oil-feed sealing 51, oil extraction sealing 52 and oil spilling sealing 53 after being fed through flexible protection cylinder 2.Above-mentioned three sealings are used for corresponding pipeline can be communicated with the external world when needs oil-feed and oil extraction, seal when not needed, prevent extraneous dust from entering.But for the pipeline of Fig. 1 structure, the circular arc pipeline of pipeline is fed through that the hole of flexible protection needed for cylinder 2 is comparatively large, and namely the aperture of above-mentioned oil-feed connecting hole, oil extraction connecting hole and oil spilling connecting hole is comparatively large, and it is comparatively large with the gap of corresponding circular arc pipeline, not easily realizes sealing.Refer to Fig. 4, for the ease of the sealing of sealing to pipeline, above-mentioned oil-feed sealing 51, oil extraction sealing 52 and oil spilling sealing 53 can comprise:
Junction plate 501, be fixedly installed on flexible protection cylinder 2 on corresponding connecting hole, and offer the through hole worn for corresponding pipeline, the diameter of this through hole is less than the diameter of corresponding connecting hole; Namely the junction plate 501 of oil-feed sealing 51 is arranged on oil-feed connecting hole, and open wear for inflow pipeline 41 and diameter is less than the through hole of oil-feed connecting hole; The junction plate of oil extraction sealing 52 is arranged on oil extraction connecting hole, and opens the through hole that oil supply and discharge pipeline 42 wears and diameter is less than oil extraction connecting hole; The junction plate of oil spilling sealing 53 is arranged on oil spilling connecting hole, and open wear for oil spilling pipeline 43 and diameter is less than the through hole of oil spilling connecting hole;
Hydraulic fluid port seat 502, is arranged at junction plate 501 end face, and this hydraulic fluid port seat 502 is provided with plug screw 503;
The end face of pipeline (above-mentioned inflow pipeline 41, oil-drain pipe 42 and oil spilling pipeline 43) and junction plate 501, and form seal cavity between plug screw 503.Namely the periphery wall of each pipeline is tightly connected with the through hole hole wall of corresponding junction plate 501 respectively, to avoid lubrication oil from the spatial leaks between pipeline periphery wall and through hole hole wall.
Adopt this kind of sealing structure, tool has the following advantages:
The through-hole aperture offered needed on junction plate 501 is less, is convenient to being tightly connected both realizing; In the present invention, preferably by welded seal between through hole and corresponding pipeline.
Operating personnel can adjust the size of hydraulic fluid port seat 502 flexibly, to improve the intensity of sealing, prevent in development machine operation process, and weight is pounded or the situation such as collision destroys sealing.
In addition, in order to ensure bonding strength, above-mentioned junction plate 501 preferably protects cylinder 2 to weld mutually with flexible; Hydraulic fluid port seat 502 also preferably welds with junction plate 501 mutually.
When needs oiling or oil extraction, only plug screw 503 need be turned on, easy and simple to handle.
In addition, in order to prevent extraneous dust accretions in plug screw 503, hydraulic fluid port seat 502 or the gap of the two, above-mentioned cutting mechanism also preferably includes the oil-feed guard shield be covered on respectively outside above-mentioned oil-feed sealing 51, oil extraction sealing 52 and oil spilling sealing 53, oil extraction guard shield and oil spilling guard shield (not shown).
As shown in the above; in the cutting mechanism that the embodiment of the present invention provides; it is outside that oil input channel on floating seal frame, oil expulsion channel and oil spilling road are connected to flexible protection respectively by inflow pipeline, oil-drain pipe and oil spilling pipeline, and optionally communicated with the external world by oil-feed sealing, oil extraction sealing and the oil spilling sealing being arranged at inflow pipeline, oil-drain pipe and oil spilling pipe end or sealed.Relative to existing cutting mechanism, in this cutting mechanism to the oiling of bearing and oil extraction easy and simple to handle, only need opening corresponding sealing, without the need to rotating cutterhead frequently, contributing to increasing work efficiency.Further, the port of inflow pipeline, namely pouring orifice is positioned at the flexible protection tube outer surface of pars contractilis, and be convenient to cleaning, therefore operating personnel can clear up the dust being attached to pouring orifice surface in time.Reduce the probability that introduced contaminants enters bearing bore, contribute to the application life extending bearing.
The embodiment of the present invention additionally provides a kind of development machine, this development machine is provided with any one cutting mechanism above-mentioned, because any one cutting mechanism above-mentioned has above-mentioned technique effect, therefore, the development machine being provided with this cutting mechanism also should possess corresponding technique effect, its specific implementation process is similar to the above embodiments, does not hereby repeat.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a cutting mechanism, comprises cutterhead, pars contractilis, bearing and floating seal frame, it is characterized in that,
Described floating seal frame is provided with: oil input channel, oil expulsion channel and oil spilling road; Described oil input channel, oil expulsion channel and oil spilling road all communicate with the bearing bore of described bearing;
Described cutting mechanism also comprises:
Inflow pipeline, oil-drain pipe and oil spilling pipeline; Described inflow pipeline, oil-drain pipe and oil spilling pipeline between the flexible protection cylinder and outer telescopic tube of described pars contractilis, or are formed in described flexible protection cylinder barrel; One end of described inflow pipeline, oil-drain pipe and oil spilling pipeline communicates with described oil input channel, oil expulsion channel and oil spilling road respectively, and the other end all communicates with the outside of described flexible protection cylinder;
Be arranged at the oil-feed sealing of the port of the other end of described inflow pipeline, oil-drain pipe and oil spilling pipeline, oil extraction sealing and oil spilling sealing respectively, be in communication with the outside for optionally making corresponding pipeline or seal.
2. cutting mechanism according to claim 1, is characterized in that, described oil input channel, oil expulsion channel include with oil spilling road: the inclination oil duct section be communicated with in turn, vertically oil duct section and horizontal oil duct section; Described inclination oil duct section communicates with described bearing bore, and described horizontal oil duct section communicates with corresponding pipeline; The described arranged direction of vertical oil duct section and the axes normal of described bearing, horizontal oil duct section is parallel with the axis of described bearing.
3. cutting mechanism according to claim 1, is characterized in that, described inflow pipeline, oil-drain pipe and oil-feed are between flexible protection cylinder and outer telescopic tube; Described flexible protection cylinder is respectively arranged with oil-feed connecting hole, oil extraction connecting hole and oil spilling connecting hole; Described inflow pipeline, oil-drain pipe include with oil spilling pipeline: the horizontal pipe be connected and circular arc pipeline; The described horizontal pipe oil duct corresponding to described oil input channel, oil expulsion channel and oil spilling road is communicated with, and circular arc pipeline is fed through corresponding connecting hole on described flexible protection cylinder.
4. cutting mechanism according to claim 3, is characterized in that, described oil-feed sealing, oil extraction sealing and oil spilling sealing include:
Junction plate, is fixedly installed on described flexible protection cylinder on corresponding connecting hole, and offers the through hole worn for corresponding pipeline, and the diameter of described through hole is less than the diameter of described connecting hole;
Hydraulic fluid port seat, is arranged at described junction plate end face, and described hydraulic fluid port seat is provided with plug screw;
The end face of described pipeline and described junction plate, and form seal cavity between described plug screw.
5. cutting mechanism according to claim 4, is characterized in that, passes through welded seal between described through hole and corresponding pipeline.
6. cutting mechanism according to claim 3, is characterized in that, described inflow pipeline, oil-drain pipe and oil spilling pipeline are stainless steel pipes.
7. cutting mechanism according to claim 3, is characterized in that, described oil-feed connecting hole is opened in the top of described flexible protection cylinder, and described oil extraction connecting hole is opened in the bottom of described flexible protection cylinder.
8. cutting mechanism according to claim 3, is characterized in that, also comprises the oil-feed guard shield, oil extraction guard shield and the oil spilling guard shield that are covered on respectively outside described oil-feed sealing, oil extraction sealing and oil spilling sealing.
9. cutting mechanism according to claim 3, is characterized in that, between described oil input channel and inflow pipeline, between described oil expulsion channel and oil-drain pipe, and is provided with sealing ring between described oil spilling road and oil spilling pipeline.
10. a development machine, is characterized in that, is provided with the cutting mechanism described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606029.4A CN104453888B (en) | 2014-10-31 | 2014-10-31 | Cutting mechanism and development machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606029.4A CN104453888B (en) | 2014-10-31 | 2014-10-31 | Cutting mechanism and development machine |
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| Publication Number | Publication Date |
|---|---|
| CN104453888A true CN104453888A (en) | 2015-03-25 |
| CN104453888B CN104453888B (en) | 2016-08-31 |
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| CN201410606029.4A Active CN104453888B (en) | 2014-10-31 | 2014-10-31 | Cutting mechanism and development machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114473A (en) * | 2015-08-04 | 2015-12-02 | 上海创力集团股份有限公司 | Tunneling machine stretching part structure |
| CN106014435A (en) * | 2016-07-27 | 2016-10-12 | 山西天巨重工机械有限公司 | Efficient rapid rock drift tunneller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3908540A1 (en) * | 1988-03-19 | 1989-09-28 | Paurat Gmbh | Method of driving an underground space, in particular a roadway or a tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105114473A (en) * | 2015-08-04 | 2015-12-02 | 上海创力集团股份有限公司 | Tunneling machine stretching part structure |
| CN106014435A (en) * | 2016-07-27 | 2016-10-12 | 山西天巨重工机械有限公司 | Efficient rapid rock drift tunneller |
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| Publication number | Publication date |
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| CN104453888B (en) | 2016-08-31 |
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Denomination of invention: Cutting mechanism and tunneling machine Effective date of registration: 20231212 Granted publication date: 20160831 Pledgee: Shenyang Santaizi Sub Branch of China Everbright Bank Co.,Ltd. Pledgor: Sany Heavy Equipment Co.,Ltd. Registration number: Y2023210000342 |