CN206693918U - Hydraulic-driven shock resistance bore operation engineering truck - Google Patents

Abstract

Hydraulic-driven shock resistance bore operation engineering truck, including support frame, guide rail is provided with left-right direction at the top of support frame, shock resistance fire-proof motor is provided with by dovetail groove sliding connection structure on guide rail, the main shaft of shock resistance fire-proof motor towards it is left set and be coaxially connected be hollow-core construction drilling rod and drill bit, guide rail right-hand member is fixedly installed position-limited rack, connected between on the right side of position-limited rack and shock resistance fire-proof motor by creeping into oil cylinder, drilling oil cylinder both ends are hinged with position-limited rack and shock resistance fire-proof motor respectively.The utility model carries out reaming simultaneously during drilling, the size in reaming aperture resistance as caused by drilling is huge, resistance more large aperture is bigger, the utility model can move freely, it can be positioned during bore expanded hole by way of hydraulic-driven, improve the stability of the support frame in boring procedure.In addition, the shock resistance fire-proof motor in the utility model has good shock resistance, help to protect pressure bearing without damage, increase the service life.

Description

Hydraulic-driven shock resistance bore operation engineering truck

Technical field

The utility model belongs to mining machinery technical field, and in particular to a kind of hydraulic-driven shock resistance bore operation engineering Car.

Background technology

Gas pumping technology is the necessary guarantee that mine gas is administered safely, is influenceed by coal seam oneself factor, safely may be used The gas pumping leaned on must be premised on hole creating technology.Because coal seam geological condition is complicated, occur after coal bed drilling in hole Cave in, it is therefore desirable to carry out reaming, existing bore expanded hole rig is generally fixedly mounted and set, and often bores a hole and expands a hole Just need to carry once, so influence efficiency of construction, and increase the labor intensity of worker.In addition, in reaming procedure, it is used for The motor of drilling rod and drill bit is driven often by very big axial impact.The motor of traditional structure, when rotor is by axle During to impulsive force, on the pressure bearing that the impact load suffered by it will be applied between main shaft both ends and casing completely, due to pressure Power bearing bears the limited in one's ability of axial force, and when impact load, which exceedes, answers bearing capacity, pressure bearing will be damaged, motor Runnability declines even damage and shut down.Therefore, just needed pair for being often subject to the motor of very big axial impact load The structure of existing motor is improved, and is avoided pressure bearing impaired and is made motor can not normal work.

Utility model content

The utility model is in order to solve weak point of the prior art, there is provided it is a kind of underground coal mine movement flexibly, Reaming avoids bit freezing, can bear the hydraulic-driven shock resistance bore operation of high axial impact load motor in reaming procedure Engineering truck.

In order to solve the above technical problems, the utility model adopts the following technical scheme that：Hydraulic-driven shock resistance bore operation Engineering truck, including support frame, support frame top are provided with guide rail, are slidably connected on guide rail by dovetail groove in left-right direction Structure setting has a shock resistance fire-proof motor, and to set and be coaxially connected be hollow-core construction towards left for the main shaft of shock resistance fire-proof motor Drilling rod and drill bit, guide rail right-hand member is fixedly installed position-limited rack, on the right side of position-limited rack and shock resistance fire-proof motor between pass through drilling Oil cylinder is connected, and drilling oil cylinder both ends are hinged with position-limited rack and shock resistance fire-proof motor respectively；

Shock resistance fire-proof motor includes casing, main shaft, stator and rotor, and stator is fixedly installed on the circumferential inner wall of casing, The left and right ends portion of casing is provided with a bearing chamber, in each bearing chamber interference one pressure bearing, rotor are installed It is fixedly installed on main shaft, main shaft left and right ends are each passed through the inner ring of a pressure bearing and matched somebody with somebody with ring gap in pressure bearing Close, main shaft surface in axial direction offers guide groove of the twice respectively on the inside of a pressure bearing, each pressure bearing Inner ring is in axial direction fixedly connected with the guide block extending into guide groove, and the width of guide groove is equal with the width of guide block, guide groove Axial length is more than the axial length of guide block；Casing left part is provided with left end cap, the left end of main shaft outside the bearing chamber in left side Left end cap is stretched out, casing right part is provided with right end cap outside the bearing chamber on right side, through hole, right end cap are offered in the middle part of right end cap Right side is coaxial to be provided with outer cylinder body and inner barrel, and outer cylinder body left end is fixedly connected with inner barrel left end by annular slab, annular Plate left-hand face is fixedly connected with right end cap right lateral surface, and inner barrel right-hand member is fixed with closure plate, outer cylinder body inwall and inner barrel Form annular housing between outer wall, outer cylinder body right-hand member is fixedly connected with sealing plate, outer cylinder body right side and sealing plate left surface it Between be provided with sealing ring, open on the left of inner barrel, main shaft right-hand member is coaxial to be fixedly connected with plunger, and plunger is slidably connected at inner barrel It is interior, the sealing shroud that cooperation is slidingly sealed with the inwall of inner barrel is provided with plunger, if uniformly offering capable person's ring on inner barrel Shape cavity and the oilhole connected inside inner barrel, the 1-3mm of the internal diameter of oilhole, being less than for annular housing are more than inside inner barrel Hydraulic oil is filled with volume, inner barrel and annular housing, the volume of hydraulic oil is equal to the volume inside inner barrel.

Support frame bottom is provided with rail wheel, and mounting platform is provided with the middle part of support frame, is being installed in support frame Left side and right side below platform are respectively arranged with hydraulic station and tool box, and described guide rail left bottom is by being hinged on support At the top of frame left, connected in the middle part of mounting platform between guide rail middle part by tilt adjustment oil cylinder, tilt adjustment cylinder upper end It is hinged respectively with guide rail and mounting platform with lower end, explosion-proof air blower is provided with the right side of mounting platform, is provided with outside main shaft and master The rotary seal structure of axle rotation connection, main shaft left end in axial direction offer blind hole, and drilling rod right-hand member is stretched into and is threadedly coupled In blind hole, drilling rod left end is threadedly coupled with drill bit right-hand member, is connected inside rotary seal structure with blind hole, rotary seal structure leads to The air outlet for crossing air duct and explosion-proof air blower is connected, and diagonal brace mechanism is provided with the right side of support frame.

Inclined support structure includes sway brace, the first diagonal brace oil cylinder and the second diagonal brace oil cylinder, and support frame right upper portion is fixed and set Mounting bracket is equipped with, the cylinder ends of the first diagonal brace oil cylinder are hinged on mounting bracket, and the cylinder ends of the second diagonal brace oil cylinder are hinged on Support frame lower right side, sway brace are in triangular prism structure, and sway brace is horizontally disposed with along the longitudinal direction, and the bottom surface of sway brace is horizontal Set, the piston rod end of the first diagonal brace oil cylinder is hinged on the bottom of sway brace left surface, the tailpiece of the piston rod of the second diagonal brace oil cylinder Portion is hinged on the top of sway brace left surface；

Hydraulic station is by high-pressure oil pipe respectively with creeping into oil cylinder, tilt adjustment oil cylinder, the first diagonal brace oil cylinder and the second diagonal brace Oil cylinder connects.

It is evenly arranged with the bottom surface of sway brace and grabs ground nail, the right flank lower tilt of sway brace is provided with tiltedly to the right Nail.

Rotary seal structure includes sealing block, is offered in left-right direction in the middle part of sealing block and circular hole, main shaft are located in circle Coordinate in hole and with circular-hole internal-wall gap, the toroidal cavity outside main shaft is offered inside sealing block, is offered on main shaft By toroidal cavity and the fresh air inlet that is connected inside and outside blind hole, fresh air inlet connects with the right side of blind hole, the left side of blind hole and drilling rod Right-hand member is threadedly coupled, and the pipe joint being connected with the air outlet of air duct, pipe joint lower end and ring are fixedly installed at the top of sealing block Shape cavity is connected, and a bearing groove is opened up respectively in left side and right side on sealing block, and a rolling is mounted in each bearing groove Pearl bearing, inner ring and the main shaft elastic conjunction of ball bearing, outer end and the bearing groove collar wall elastic conjunction of ball bearing, sealing Block left side and right side are respectively arranged with a bearing (ball) cover, and positioning is provided between the bearing (ball) cover and left end cap on right side Bar.

Support frame bottom is provided with least four positional cylinders being connected by high-pressure oil pipe with hydraulic station, positioning oil The cylinder body upper end of cylinder is fixedly connected with to be set vertically downward in support frame bottom, the piston rod of positional cylinder, positional cylinder Piston-rod lower end level is fixedly connected with positioning disk, and positioning disk lower surface is evenly arranged with some prick and followed closely.

Jump ring is provided with main shaft, jump ring contacts with the right side of the pressure bearing inner ring on right side.

Inner barrel is internally provided with a shock resistance spring, and the left end of shock resistance spring and the right-hand member of plunger, which are fixed, to be connected Connect, when hydraulic oil no pressure and shock resistance spring are in the fully extended state, right part and the closure plate of shock resistance spring connect Touch, while the right part of guide block contacts with the right part of guide groove.

Using above-mentioned technical proposal, track row that the rail wheel of support frame bottom can be laid along coal mine down-hole tunnel Enter, after advancing in place, the utility model hung using the straddle truck across track both sides on the ground outside track, manually shifted onto Bore position.Manipulation hydraulic station makes the piston rod of positional cylinder extend downwards, and positioning disk contacts with ground, and road wheel leaves ground Face, in the presence of each device self gravitation of support frame and installation on the support frame, the bundle of positioning disk lower surface Pinning enters to subsurface, the position of Primary Location support frame, while also adjusts the height of drill bit, with corresponding bore position.So Manipulating hydraulic station again afterwards extends the piston rod of the first diagonal brace oil cylinder and the second diagonal brace oil cylinder, control sway brace contact ground, makes Ground nail and diagonal brace nail piercing ground are grabbed on sway brace, so further support frame is securely fixed, offset in drilling process Caused recoil.

Before bore operation, after pulling boring point, starting tilt adjustment oil cylinder makes guide rail with guide rail and support frame front side Hinged place rotates for fulcrum, and drilling direction stops after being adjusted in place.When starting drilling, by blind hole spiral shell of the drill bit directly with main shaft Connect, after starting shock resistance fire-proof motor, drilling hydraulic oil cylinder driving shock resistance fire-proof motor is moved to the left along guide rail, when drill bit will be complete When portion is extend into drilling, drill bit and main shaft are departed from, drilling hydraulic oil cylinder driving shock resistance fire-proof motor moves right along guide rail, then Drilling rod is connected between main shaft and drill bit, restarts drilling hydraulic oil cylinder driving shock resistance fire-proof motor and is moved to the left along guide rail, when When drilling rod all will be extend into drilling, drilling rod and main shaft are departed from, then in next drilling rod connection.In this way The depth of drilling can gradually be increased.

In drilling process, while to start explosion-proof air blower, high-pressure blast is passed sequentially through air duct, rotation by explosion-proof air blower After the pipe joint, toroidal cavity, fresh air inlet that turn sealing structure, enter to the left into blind hole, then by the central passage in drilling rod Enter at drilling, caused cinder in drilling process or ickings are discharged by the circular passage between drilling rod and drilling, at the same it is high Pressure wind also plays the role of the drill bit that cools.

Due to the setting of two ball bearings and locating rod, for main shaft when high speed rotates, sealing block keeps constant motionless, Fresh air inlet on main shaft connects with toroidal cavity all the time in rotation process, so ensures that high-pressure blast is kept in course of conveying It is unimpeded.Circular hole in sealing block coordinates with gap of main reinforcement, but the inner ring of two bearings is interference fitted with main shaft, and bearing end The setting of lid, it need not thus use sealing ring（Sealing ring easily wears）With regard to the hidden danger sealing that will leak out.

Because drill bit is to carry out bore operation to coal seam or rock stratum, drill bit will pass axial impact force by larger resistance Shock resistance fire-proof motor is delivered to, the main shaft of shock resistance fire-proof motor can be by stronger impulsive force.The master of shock resistance fire-proof motor Axle left end is clutch end, when main shaft left end is by axial impact, main shaft can play to the right suddenly, the guide groove edge on main shaft The guide block being fixedly installed on pressure bearing inner ring moves right, and main shaft right-hand member will drive plunger, plunger actuation shock resistance spring Top pressure closure plate to the right, meanwhile, plunger produces thrust to hydraulic oil, and the hydraulic oil in inner barrel is squeezed into annular chamber by oilhole In vivo, because plunger moves from left to right, the sealing shroud on plunger can block the oilhole on inner barrel, inner barrel and annular chamber Oilhole passage reduces between body, and the pressure increase of hydraulic oil, hydraulic oil depressurize left and right with regard to that can play good buffering in inner barrel, Shock resistance spring also functions to good cushioning effect, so it is avoided that pressure bearing is effectively protected pressure by impulsive force Bearing.Open up the cooperation between the guide block being fixedly installed on guide groove and pressure bearing inner ring on main shaft to be used to transmit moment of torsion, simultaneously It is also convenient for main shaft to be axially moveable, under conditions of there is gap between main shaft and pressure bearing inner ring, also ensures that main shaft is turning Friction is not produced during dynamic with pressure bearing inner ring.Jump ring is used for the effect for positioning right atrial pressure bearing axial location.

When shock resistance spring is in the fully extended state, the right part of shock resistance spring contacts with right end cap, leads simultaneously The right part of block contacts with the right part of guide groove；So when main shaft is not affected by axial impact force, make main shaft in the axial direction Positioning.

Annular housing is less than the volume being more than inside inner barrel, and the volume of hydraulic oil is equal to the volume inside inner barrel, After being full of hydraulic oil so in annular housing, still some hydraulic oil inside inner barrel, plunger is avoided by shock resistance spring Very stiff and demanding stress is produced when being also pressed onto the most short limit.

Tool box in the utility model is used to place some conventional instruments.Some section drilling rods can be placed on erecting bed Or other parts.

In summary, the utility model carries out reaming simultaneously during drilling, and the size in reaming aperture is by creeping into institute Caused resistance is huge, and resistance more large aperture is bigger, and the utility model can move freely, and can lead to during bore expanded hole The mode for crossing hydraulic-driven positions, and improves the stability of the support frame in boring procedure.In addition, the anti-impact in the utility model Hitting fire-proof motor has good shock resistance, helps to protect pressure bearing without damage, increases the service life.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the axial sectional view of shock resistance fire-proof motor in Fig. 1；

Fig. 3 is the enlarged drawing at I in Fig. 2.

Embodiment

As shown in Figure 1-Figure 3, hydraulic-driven shock resistance bore operation engineering truck of the present utility model, including support frame 1, The top of support frame 1 is provided with guide rail 2 in left-right direction, and dovetail groove sliding connection structure is provided with shock resistance on guide rail 2 Fire-proof motor 3, the main shaft 8 of shock resistance fire-proof motor 3 towards it is left set and be coaxially connected be hollow-core construction drilling rod 5 and drill bit 4, the right-hand member of guide rail 2 is fixedly installed position-limited rack 6, is connected between position-limited rack 6 and the right side of shock resistance fire-proof motor 3 by creeping into oil cylinder 7 Connect, drilling oil cylinder 7 both ends are be hinged with position-limited rack 6 and shock resistance fire-proof motor 3 respectively.

Shock resistance fire-proof motor 3, including casing 58, stator 59 and rotor 60, stator 59 are fixedly installed on the circle of casing 58 All inwalls, the left and right ends portion of casing 58 are provided with a bearing chamber, in each bearing chamber interference one pressure is installed Bearing 61, rotor 60 are fixedly installed on main shaft 8, the left and right ends of main shaft 8 be each passed through the inner ring of a pressure bearing 61 and with Ring gap coordinates in pressure bearing 61, and the surface of main shaft 8 in axial direction offers twice and is located at respectively in a pressure bearing 61 The guide groove 62 of side, the inner ring of each pressure bearing 61 are in axial direction fixedly connected with the guide block 63 extending into guide groove 62, led The width of groove 62 is equal with the width of guide block 63, and the axial length of guide groove 62 is more than the axial length of guide block 63；The left end of casing 58 Portion is provided with left end cap 64 outside the Room of pressure bearing 61 in left side, and the left end of main shaft 8 stretches out left end cap 64, and the right part of casing 58 exists Right end cap 65 is provided with outside the Room of pressure bearing 61 on right side, the middle part of right end cap 65 offers through hole 66, and the right side of right end cap 65 is coaxial To outer cylinder body 67 and inner barrel 68 is provided with, the left end of outer cylinder body 67 is fixedly connected with the left end of inner barrel 68 by annular slab 69, ring The left-hand face of shape plate 69 is fixedly connected with the right lateral surface of right end cap 65, and the right-hand member of inner barrel 68 is fixed with closure plate 70, outer cylinder body 67 Annular housing 71 is formed between inwall and the outer wall of inner barrel 68, the right-hand member of outer cylinder body 67 is fixedly connected with sealing plate 72, outer cylinder body 67 Sealing ring 73 is provided between right side and the left surface of sealing plate 72, the left side of inner barrel 68 is open, and the coaxial fixation of the right-hand member of main shaft 8 is even Plunger 74 is connected to, plunger 74 is slidably connected in inner barrel 68, is provided with plunger 74 and is slidingly sealed with the inwall of inner barrel 68 The sealing shroud 75 of cooperation, if uniformly offering the oilhole that capable person's annular housing 71 connects with the inside of inner barrel 68 on inner barrel 68 76, the 1-3mm of the internal diameter of oilhole 76, annular housing 71 are less than the volume being more than inside inner barrel 68, inner barrel 68 and annular Hydraulic oil is filled with cavity 71, the volume of hydraulic oil is equal to the volume inside inner barrel 68.

The bottom of support frame 1 is provided with rail wheel 9, and the middle part of support frame 1 is provided with mounting platform 10, in support frame 1 Left side and right side below mounting platform 10 are respectively arranged with hydraulic station 11 and tool box 12, the described left bottom of guide rail 2 The left side top of support frame 1 is hinged on, is connected between the middle part of mounting platform 10 and the middle part of guide rail 2 by tilt adjustment oil cylinder 13, The top and bottom of tilt adjustment oil cylinder 13 are be hinged with guide rail 2 and mounting platform 10 respectively, and the right side of mounting platform 10 is provided with explosion-proof Air blower 14, main shaft 8 are provided with the rotary seal structure 50 being rotatablely connected with main shaft 8 outside, and the left end of main shaft 8 in axial direction opens up There is blind hole 18, the right-hand member of drilling rod 5 is stretched into and is threaded in blind hole 18, and the left end of drilling rod 5 is threadedly coupled with the right-hand member of drill bit 4, rotation The inside of sealing structure 50 is connected with blind hole 18, and rotary seal structure 50 is connected by the air outlet of air duct 51 and explosion-proof air blower 14 Connect, the right side of support frame 1 is provided with diagonal brace mechanism.

Inclined support structure includes sway brace 52, the first diagonal brace oil cylinder 53 and the second diagonal brace oil cylinder 54, the right upper portion of support frame 1 Mounting bracket 55 is fixedly installed, the cylinder ends of the first diagonal brace oil cylinder 53 are hinged on mounting bracket 55, the second diagonal brace oil cylinder 54 Cylinder ends are hinged on the lower right side of support frame 1, and sway brace 52 is in triangular prism structure, and level is set sway brace 52 along the longitudinal direction Put, the bottom surface of sway brace 52 is horizontally disposed with, and the piston rod end of the first diagonal brace oil cylinder 53 is hinged under the left surface of sway brace 52 Portion, the piston rod end of the second diagonal brace oil cylinder 54 are hinged on the top of the left surface of sway brace 52；

Hydraulic station 11 by high-pressure oil pipe respectively with drilling oil cylinder 7, tilt adjustment oil cylinder 13, the first diagonal brace oil cylinder 53 and the Two diagonal brace oil cylinders 54 connect.

It is evenly arranged with the bottom surface of sway brace 52 and grabs ground nail 56, the right flank lower tilt of sway brace 52 is set to the right It is equipped with diagonal brace nail 57.

Rotary seal structure 50 includes sealing block 15, and the middle part of sealing block 15 offers in left-right direction and circular hole, main shaft 8 are worn It is located in circular hole and coordinates with circular-hole internal-wall gap, the toroidal cavity 16 outside main shaft 8 is offered inside sealing block 15, it is main Offered on axle 8 and connect toroidal cavity 16 and the inside and outside fresh air inlet 17 connected of blind hole 18, fresh air inlet 17 and the right side of blind hole 18 Logical, the left side of blind hole 18 is threadedly coupled with drilling rod right-hand member, and the top of sealing block 15 is fixedly installed to be connected with the air outlet of air duct The pipe joint 19 connect, the lower end of pipe joint 19 are connected with toroidal cavity 16, and one is opened up respectively on left side and right side on sealing block 15 Bearing groove, a ball bearing 20, inner ring and the elastic conjunction of main shaft 8 of ball bearing 20, rolling are mounted in each bearing groove The outer end of pearl bearing 20 and bearing groove collar wall elastic conjunction, the left side of sealing block 15 and right side are respectively arranged with a bearing End cap 21, is provided with locating rod 22 between the bearing (ball) cover 21 and left end cap 64 on right side, the both ends of locating rod 22 are respectively fixedly connected with Between for the bolt of fixing bearing end cap 21 and left end cap 64.

The bottom of support frame 1 is provided with least four positional cylinders 23 being connected by high-pressure oil pipe with hydraulic station 11, The cylinder body upper end of positional cylinder 23 is fixedly connected with to be set vertically downward in the bottom of support frame 1, the piston rod of positional cylinder 23, The piston-rod lower end level of positional cylinder 23 is fixedly connected with positioning disk 24, and the lower surface of positioning disk 24 is evenly arranged with some prick and followed closely 25。

Jump ring 77 is provided with main shaft 8, jump ring 77 contacts with the right side of the inner ring of pressure bearing 61 on right side.

Inner barrel 68 is internally provided with a shock resistance spring 78, the left end of shock resistance spring 78 and the right-hand member of plunger 74 It is fixedly connected, when hydraulic oil no pressure and shock resistance spring 78 are in the fully extended state, the right-hand member of shock resistance spring 78 Portion contacts with closure plate 70, while the right part of guide block 63 contacts with the right part of guide groove 62.

The track that the rail wheel 9 of the bottom of support frame 1 can be laid along coal mine down-hole tunnel is advanced, and after advancing in place, is made The utility model hung with the straddle truck across track both sides on the ground outside track, manually shift bore expanded hole position onto.Behaviour Control hydraulic station 11 makes the piston rod of positional cylinder 23 extend downwards, and positioning disk 24 contacts with ground, and road wheel 9 leaves ground, In the presence of support frame 1 and each device self gravitation in support frame 1, the bundle nail of the lower surface of positioning disk 24 25 penetrate subsurface, the position of Primary Location support frame 1, while also adjust the height of drill bit 4, with corresponding bore position. Then manipulating hydraulic station 11 again extends the piston rod of the first diagonal brace oil cylinder 53 and the second diagonal brace oil cylinder 54, and control sway brace 52 connects Tread surface, make to grab ground nail 56 and the piercing ground of diagonal brace nail 57 on sway brace 52, so further firmly consolidate support frame 1 It is fixed, offset in recoil caused by drilling process.

Before bore operation, after pulling boring point, starting tilt adjustment oil cylinder 13 makes guide rail 2 with guide rail 2 and support frame 1 Front side hinged place rotates for fulcrum, and drilling direction stops after being adjusted in place.It is when starting drilling, drill bit is directly blind with main shaft 8 Hole 18 is spirally connected, and after starting shock resistance fire-proof motor 3, drilling oil cylinder 7 drives shock resistance fire-proof motor 3 to be moved to the left along guide rail 2, when When drill bit all will be extend into drilling, drill bit and main shaft 8 are departed from, drilling oil cylinder 7 drives shock resistance fire-proof motor 3 along leading Rail 2 is moved right, then drilling rod 5 is connected between main shaft 8 and drill bit, is restarted drilling oil cylinder 7 and is driven shock resistance fire-proof motor 3 It is moved to the left along guide rail 2, when drilling rod 5 all will be extend into drilling, drilling rod 5 and main shaft 8 is departed from, then next brill In the connection of bar 5.The depth of drilling can gradually be increased in this way.

In drilling process, while to start explosion-proof air blower 14, high-pressure blast is passed sequentially through air feed by explosion-proof air blower 14 After pipe, the pipe joint 19 of rotary seal structure, toroidal cavity 16, fresh air inlet 17, into blind hole 18, then by drilling rod 5 Central passage is entered at drilling to the left, by caused cinder in drilling process or ickings by the annular between drilling rod 5 and drilling 4 Passage is discharged, while high-pressure blast also plays the role of the drill bit 4 that cools.

Due to the setting of two ball bearings 20 and locating rod 22, for main shaft 8 when high speed rotates, sealing block 15 keeps permanent Fixed motionless, the fresh air inlet 17 on main shaft 8 connects with toroidal cavity 16 all the time in rotation process, so ensures high-pressure blast defeated Kept during sending unimpeded.Circular hole in sealing block 15 coordinates with the gap of main shaft 8, but the inner ring of two bearings with the mistake of main shaft 8 It is full of cooperation, and the setting of bearing (ball) cover 21, need not thus uses sealing ring（Sealing ring easily wears）With regard to that will leak out, hidden danger is close Envelope.

Because drill bit is to carry out bore operation to coal seam or rock stratum, drill bit will pass axial impact force by larger resistance Shock resistance fire-proof motor 3 is delivered to, the main shaft 8 of shock resistance fire-proof motor 3 can be by stronger impulsive force.Shock resistance fire-proof motor 3 The left end of main shaft 8 be clutch end, when the left end of main shaft 8 is by axial impact, main shaft 8 can play to the right suddenly, on main shaft 8 The guide block 63 that is fixedly installed along the inner ring of pressure bearing 61 of guide groove 62 move right, the right-hand member of main shaft 8 will drive plunger 74, post Plug 74 drives the top pressure closure plate 70 to the right of shock resistance spring 78, meanwhile, plunger 74 produces thrust to hydraulic oil, by inner barrel 68 Hydraulic oil is squeezed into annular housing 71 by oilhole 76, because plunger 74 moves from left to right, the sealing shroud 75 on plunger 74 Oilhole 76 on inner barrel 68 can be blocked, the passage of oilhole 76 reduces between inner barrel 68 and annular housing 71, in inner barrel 68 The pressure increase of hydraulic oil, hydraulic oil depressurize left and right with regard to that can play good buffering, and shock resistance spring 78 also functions to good delay Punching acts on, so it is avoided that pressure bearing 61 is effectively protected pressure bearing 61 by impulsive force.Guide groove is opened up on main shaft 8 62 and the inner ring of pressure bearing 61 on cooperation between the guide block 63 that is fixedly installed be used to transmit moment of torsion, while be also convenient for the edge of main shaft 8 Axial movement, under conditions of there is gap between main shaft 8 and the inner ring of pressure bearing 61, also ensure that main shaft 8 in rotation process Friction is not produced with the inner ring of pressure bearing 61.Jump ring 77 is used for the effect for positioning the axial location of right atrial pressure bearing 61.

When shock resistance spring 78 is in the fully extended state, the right part of shock resistance spring 78 contacts with right end cap 65, The right part of guide block 63 contacts with the right part of guide groove 62 simultaneously；So when main shaft 8 is not affected by axial impact force, make main shaft 8 Position in the axial direction.

Annular housing 71 is less than the volume being more than inside inner barrel 68, and the volume of hydraulic oil is equal to inside inner barrel 68 Volume, after being full of hydraulic oil in such annular housing 71, still some hydraulic oil inside inner barrel 68, avoid plunger 74 will Shock resistance spring 78 produces very stiff and demanding stress when being also pressed onto the most short limit.

The present embodiment not makees any formal limitation, every foundation to shape of the present utility model, material, structure etc. Any simple modification, equivalent change and modification that the technical essence of the utility model is made to above example, belongs to this reality With the protection domain of new technique scheme.

Claims (8)

1. hydraulic-driven shock resistance bore operation engineering truck, it is characterised in that：Including support frame, support frame top edge left and right Direction is provided with guide rail, and dovetail groove sliding connection structure is provided with shock resistance fire-proof motor, shock resistance anti-explosion electric on guide rail The main shaft of machine towards it is left set and be coaxially connected be hollow-core construction drilling rod and drill bit, guide rail right-hand member fixed setting limited location Frame, on the right side of position-limited rack and shock resistance fire-proof motor between connected by creeping into oil cylinder, drilling oil cylinder both ends respectively with position-limited rack and Shock resistance fire-proof motor is hinged；

Shock resistance fire-proof motor includes casing, main shaft, stator and rotor, and stator is fixedly installed on the circumferential inner wall of casing, casing Left and right ends portion be provided with a bearing chamber, in each bearing chamber interference one pressure bearing is installed, rotor is fixed It is arranged on main shaft, main shaft left and right ends are each passed through the inner ring of a pressure bearing and coordinated with ring gap in pressure bearing, Main shaft surface in axial direction offers guide groove of the twice respectively on the inside of a pressure bearing, the inner ring of each pressure bearing The guide block extending into guide groove is in axial direction fixedly connected with, the width of guide groove is equal with the width of guide block, the axial direction of guide groove Length is more than the axial length of guide block；Casing left part is provided with left end cap outside the bearing chamber in left side, and the left end of main shaft stretches out Left end cap, casing right part are provided with right end cap outside the bearing chamber on right side, and through hole, right end cap right side are offered in the middle part of right end cap Coaxial to be provided with outer cylinder body and inner barrel, outer cylinder body left end is fixedly connected with inner barrel left end by annular slab, and annular slab is left Side surface is fixedly connected with right end cap right lateral surface, and inner barrel right-hand member is fixed with closure plate, outer cylinder body inwall and inner barrel outer wall Between form annular housing, outer cylinder body right-hand member is fixedly connected with sealing plate, set between outer cylinder body right side and sealing plate left surface There is sealing ring, inner barrel left side is open, and main shaft right-hand member is coaxial to be fixedly connected with plunger, and plunger is slidably connected in inner barrel, The sealing shroud that cooperation is slidingly sealed with the inwall of inner barrel is provided with plunger, if uniformly offering capable person's annular chamber on inner barrel Body and the oilhole connected inside inner barrel, the 1-3mm of the internal diameter of oilhole, annular housing are less than the body being more than inside inner barrel It is long-pending, hydraulic oil is filled with inner barrel and annular housing, the volume of hydraulic oil is equal to the volume inside inner barrel.

2. hydraulic-driven shock resistance bore operation engineering truck according to claim 1, it is characterised in that：Support frame bottom Rail wheel is provided with, mounting platform, the interior left side and right side below mounting platform of support frame are provided with the middle part of support frame Hydraulic station and tool box are respectively arranged with, for described guide rail left bottom by being hinged on support frame left side top, installation is flat Connected between in the middle part of platform and in the middle part of guide rail by tilt adjustment oil cylinder, tilt adjustment cylinder upper end and lower end respectively with guide rail and peace Assembling platform is hinged, and explosion-proof air blower is provided with the right side of mounting platform, the rotatory sealing being connected with main axis is provided with outside main shaft Structure, main shaft left end in axial direction offer blind hole, and drilling rod right-hand member is stretched into and is threaded in blind hole, and drilling rod left end is with boring Head right-hand member threaded connection, rotary seal structure inside connect with blind hole, and rotary seal structure passes through air duct and explosion-proof air blower Air outlet connection, be provided with diagonal brace mechanism on the right side of support frame.

3. hydraulic-driven shock resistance bore operation engineering truck according to claim 2, it is characterised in that：Inclined support structure includes Sway brace, the first diagonal brace oil cylinder and the second diagonal brace oil cylinder, support frame right upper portion are fixedly installed mounting bracket, the first diagonal brace oil The cylinder ends of cylinder are hinged on mounting bracket, and the cylinder ends of the second diagonal brace oil cylinder are hinged on support frame lower right side, diagonal brace Block is in triangular prism structure, and sway brace is horizontally disposed with along the longitudinal direction, and the bottom surface of sway brace is horizontally disposed with, the work of the first diagonal brace oil cylinder Stopper rod end is hinged on the bottom of sway brace left surface, and the piston rod end of the second diagonal brace oil cylinder is hinged on sway brace left surface Top；

Hydraulic station is by high-pressure oil pipe respectively with creeping into oil cylinder, tilt adjustment oil cylinder, the first diagonal brace oil cylinder and the second diagonal brace oil cylinder Connection.

4. hydraulic-driven shock resistance bore operation engineering truck according to claim 3, it is characterised in that：The bottom surface of sway brace On be evenly arranged with and grab ground nail, the right flank lower tilt of sway brace is provided with diagonal brace nail to the right.

5. hydraulic-driven shock resistance bore operation engineering truck according to claim 2, it is characterised in that：Rotary seal structure Offered in left-right direction including sealing block, in the middle part of sealing block and circular hole, main shaft be located in circular hole and with circular-hole internal-wall gap Coordinate, the toroidal cavity outside main shaft is offered inside sealing block, is offered on main shaft by inside and outside toroidal cavity and blind hole The fresh air inlet of connection, fresh air inlet are connected with the right side of blind hole, and the left side of blind hole is threadedly coupled with drilling rod right-hand member, sealing block top Portion is fixedly installed the pipe joint being connected with the air outlet of air duct, and pipe joint lower end connects with toroidal cavity, on sealing block Left side and right side open up a bearing groove respectively, and a ball bearing, the inner ring of ball bearing are mounted in each bearing groove With main shaft elastic conjunction, outer end and the bearing groove collar wall elastic conjunction of ball bearing, sealing block left side and right side difference A bearing (ball) cover is provided with, locating rod is provided between the bearing (ball) cover and left end cap on right side.

6. hydraulic-driven shock resistance bore operation engineering truck according to claim 1, it is characterised in that：Support frame bottom At least four positional cylinders being connected by high-pressure oil pipe with hydraulic station are provided with, the cylinder body upper end of positional cylinder is fixed to be connected Support frame bottom is connected on, the piston rod of positional cylinder is set vertically downward, the horizontal fixed company of piston-rod lower end of positional cylinder Positioning disk is connected to, positioning disk lower surface is evenly arranged with some prick and followed closely.

7. hydraulic-driven shock resistance bore operation engineering truck according to claim 1, it is characterised in that：It is provided with main shaft Jump ring, jump ring contact with the right side of the pressure bearing inner ring on right side.

8. hydraulic-driven shock resistance bore operation engineering truck according to claim 1, it is characterised in that：The inside of inner barrel Be provided with a shock resistance spring, the left end of shock resistance spring is fixedly connected with the right-hand member of plunger, when hydraulic oil no pressure and When shock resistance spring is in the fully extended state, the right part of shock resistance spring contacts with closure plate, at the same the right part of guide block with The right part contact of guide groove.