CN102581954B - Underground concrete mixer for coal mine - Google Patents

Underground concrete mixer for coal mine Download PDF

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Publication number
CN102581954B
CN102581954B CN2012100440271A CN201210044027A CN102581954B CN 102581954 B CN102581954 B CN 102581954B CN 2012100440271 A CN2012100440271 A CN 2012100440271A CN 201210044027 A CN201210044027 A CN 201210044027A CN 102581954 B CN102581954 B CN 102581954B
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CN
China
Prior art keywords
mixing drum
elevating hopper
concrete mixer
frame
coal mine
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CN2012100440271A
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Chinese (zh)
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CN102581954A (en
Inventor
冯开林
高波
程卫民
刘淑梅
郑娟娟
刘彬
李强
王华超
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山东科技大学
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Priority to CN2012100440271A priority Critical patent/CN102581954B/en
Publication of CN102581954A publication Critical patent/CN102581954A/en
Application granted granted Critical
Publication of CN102581954B publication Critical patent/CN102581954B/en

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Abstract

The invention provides a concrete mixer which is compact in structure and applicable to an underground tunnel of a coal mine. The concrete mixer mainly comprises a rack, a feed mechanism and a mixing mechanism, wherein the feed mechanism is arranged at the front end of the rack, and the mixing mechanism is arranged on the rack. The mixing mechanism can utilize a concrete raw material feeding funnel with fixed proportion to ensure the proportion of concrete and utilizes an adjustable quantitative water supply part to ensure the water-cement ratio of the concrete, a hydraulic cylinder drives a chain wheel to be lifted to feed, and after a hydraulic motor drives the mixer to mix, the hydraulic cylinder pushes the funnel to turn to pour the mixed concrete into a hopper of an underground concrete wet-spray machine. On the premise of not reducing the mixing capacity of the concrete mixer, movement pieces of the concrete mixer occupy the smallest space, so that the concrete mixer is suitable for tunnel work.

Description

Underground concrete mixer for coal mine
Technical field
The present invention relates to construction technical field under coal mine, be specifically related to a kind of concrete mixer of compact conformation.
Background technology
Extensively adopted the concrete spraying supporting in ground, tunnel and coal mining work progress, it not only can play the effect in reinforce stabilization tunnel, and can play good tunnel sealing process, prevents methane gas and water infiltration.Yet, at present in the coal mine roadway concrete spraying, more adopting the dry type concrete mortar gunite method, the subject matter existed with dampen shotcreting method comparison dry sprayig process has: rebound degree is high, seriously polluted, the concrete quality after strengthening is than the shortcoming such as low.National Administration of Work Safety Supervision classifies the dry type spraying pulp grinder as obsolete product for this reason.
At present, in the concrete sprayings such as railway, vcehicular tunnel constructions, for the concrete of whitewashing, be all commerical ready-mixed concrete, be transported to job site by agitator truck and carry out spray operation and get final product.And the whitewashing of the tunnelling under coal mine is on-the-spot, generally apart from ground, there is hundreds of rice even to surpass the degree of depth of km, be not suitable for the Special agitating transport vehicle of all kinds of mines, even this class Transporting equipment is arranged, transport concrete from ground also very uneconomical to down-hole.So comparatively economical and practical method is to carry out the concrete Site, can reversion discharging formula mixer and horizontal axis forced mixer be arranged as the site mixed concrete mixer at present, a total shortcoming of these mixers is all to design by ground construction, bulky, can not adapt to the construction operation of narrow space in coal mine down-hole tunnel at all.
Therefore, the concrete mixer used in coal mine down-hole tunnel that is applicable to that needs a kind of compact conformation of design.
Summary of the invention
The object of the present invention is to provide a kind of concrete mixer used in coal mine down-hole tunnel that is applicable to of compact conformation, it has novel structure, advantage easy to use.
To achieve these goals, the technical solution of employing is in the present invention:
Underground concrete mixer for coal mine, comprise frame, feed mechanism and rabbling mechanism, and feed mechanism is positioned at the front end of frame, and rabbling mechanism is positioned on frame;
Described feed mechanism comprises support, elevating hopper, hydraulic cylinder, the first sprocket shaft, the second sprocket shaft, and support consists of bottom girder, the two H shaped steel that is erected at bottom girder top and upper beam;
The front end of the piston rod of hydraulic cylinder is connected with bottom girder, the front end of the cylinder barrel of hydraulic cylinder connects the first sprocket shaft, the rear end of the cylinder barrel of hydraulic cylinder connects the second sprocket shaft, and the two ends of the first sprocket shaft and the second sprocket shaft all are connected with directive wheel, and directive wheel is limited in the inboard of two H shaped steel;
Be provided with sprocket wheel on the first sprocket shaft and the second sprocket shaft, main haulage chain one end is fixed in bottom girder, walks around tractive elevating hopper after the sprocket wheel on the second sprocket shaft, and auxiliary haulage chain one end is fixed in upper beam, walks around after the sprocket wheel on the first sprocket shaft oppositely tractive elevating hopper;
The arranged outside of H shaped steel has slide, slide slides up and down by two moving wheels that are limited in the H shaped steel outside, the left and right sides, upper end of elevating hopper is rotationally connected by hanger and slide, elevating hopper leans against on slide, be rotatably connected to the elevating hopper overturning oil cylinder on slide, the piston rod of elevating hopper overturning oil cylinder is connected with the engaging lug on elevating hopper.
Further, described rabbling mechanism comprises mixing drum, and the mixing drum accumbency, on frame, is horizontally arranged with shaft in mixing drum, on shaft, along the length direction dislocation of axle, erects mixing arm is arranged, and the front end of mixing arm is provided with stirring vane.
Further, described mixing drum consists of main cylinder and cover two parts, and the inwall of main cylinder posts abrasion-proof backing block, and shaft adopts self-aligning bearing to support.
Further, described frame is L-shaped, and mixing drum is connected with the frame upper end by the hanger of mixing drum, is provided with the mixing drum overturning oil cylinder be rotationally connected on frame, and the piston rod of mixing drum overturning oil cylinder is connected with the engaging lug on mixing drum.
Further, the bottom of described frame is the fuel tank that holds hydraulic oil.
Further, described elevating hopper is divided into three batch bins by baffle plate, is respectively cement ingredient storehouse, stone batch bin, sand batch bin, and the batch bin top is discharging opening, and a side of discharging opening is provided with water tank, and water tank is connected with mixing drum by flexible pipe.
Further, in described water tank, be provided with liquid level valve, at first mine water accesses hydraulic oil cooler, accesses afterwards spring automatic homing valve, then accesses liquid level valve, and water tank is connected with the sprinkler pipe in being arranged on mixing drum by flexible pipe.
Further, the below of described frame is provided with road wheel.
Beneficial effect of the present invention:
1, underground concrete mixer for coal mine, adopt Hydraulic Cylinder the second sprocket shaft, by main haulage chain tractive elevating hopper, the elevating hopper overturning oil cylinder promotes the elevating hopper upset, concrete raw material feeding process is decomposed into and promotes and two actions of upset, reduced action height used, made this machine be applicable to construction operation in coal mine down-hole tunnel.
2, the upset of mixing drum is driven by the mixing drum overturning oil cylinder, and the position of mixing drum overturning oil cylinder arranges and increases its magnification, under the prerequisite that does not increase altitude measurement, easily completes and pours the concrete grog be stirred into concrete spraying machine.
3, rabbling mechanism, by fluid motor-driven, had both overcome motor reducer and had directly driven the shortcoming that is difficult for realizing overload protection, was conducive to again the structural configuration of each parts.
4, feed mechanism has adopted multiplication principle, unit height of the every rising of hydraulic cylinder, main haulage chain and auxiliary haulage chain drive two unit height of elevating hopper rising jointly, hydraulic cylinder travel is amplified, increased the magnification of oil cylinder, overcome the unsettled shortcoming of employing telescopic cylinder movement velocity, strengthened the reliability of system.
5, the liquid level valve of liquid-level-adjustable is housed in water tank, makes each inflow controlled, in conjunction with spring automatic homing valve, the water yield that can guarantee at every turn to pour into mixing drum is consistent, has guaranteed the ratio of mud of ready-mixed concrete.
6, elevating hopper is divided into three batch bins by baffle plate, is respectively cement ingredient storehouse, stone batch bin, sand batch bin, by the proportioning of each concrete material of volume controlled of each batch bin.
7, take full advantage of airframe structure, using frame lower as fuel tank, make whole machine compacter, saved space, also reduced cost simultaneously.
8, shaft adopts self-aligning bearing to support, and can adapt to resistance larger in whipping process, adopts the combination sealing form that rubber seal is combined with floating seal can protect better bearing, extends service life of a machine.
9, the below of frame is provided with road wheel, and convenient carrying walking in tunnel, strengthened the flexibility of concrete mixer, also reduced workman's labour intensity simultaneously.
The accompanying drawing explanation
Fig. 1 is the structural representation of underground concrete mixer for coal mine.
Fig. 2 is elevating hopper rollover states figure.
Fig. 3 is mixing drum rollover states figure.
Fig. 4 is the feed mechanism structural representation.
Fig. 5 is the cutaway view of feed mechanism.
Fig. 6 is the structural representation of elevating hopper.
Fig. 7 is the cutaway view of mixing drum.
Fig. 8 is the fundamental diagram that mixing drum is quantitatively gone up water.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
In conjunction with Fig. 1 to Fig. 8, underground concrete mixer for coal mine, comprise frame 2, feed mechanism 1 and rabbling mechanism 3, and feed mechanism 1 is positioned at the front end of frame 2, and rabbling mechanism 3 is positioned on frame 2.
Described feed mechanism 1 comprises support 11, elevating hopper 12, hydraulic cylinder 13, the first sprocket shaft 14, the second sprocket shaft 15, and support 11 consists of bottom girder 111, the two H shaped steel 112 that is erected at bottom girder 111 tops and upper beam 113.
The front end of the piston rod of hydraulic cylinder 13 is connected with bottom girder 111, the front end of the cylinder barrel of hydraulic cylinder 13 connects the first sprocket shaft 14, the rear end of the cylinder barrel of hydraulic cylinder 13 connects the second sprocket shaft 15, the two ends of the first sprocket shaft 14 and the second sprocket shaft 15 all are connected with directive wheel 16, and directive wheel 16 is limited in the inboard of two H shaped steel 112.
Be provided with sprocket wheel 17 on the first sprocket shaft 14 and the second sprocket shaft 15, main haulage chain 18 1 ends are fixed in bottom girder 111, walk around the rear tractive elevating hopper 12 of sprocket wheel 17 on the second sprocket shaft 15, auxiliary haulage chain 19 1 ends are fixed in upper beam 113, walk around the rear reverse tractive elevating hopper 12 of sprocket wheel 17 on the first sprocket shaft 14.
The arranged outside of H shaped steel 112 has slide 4, slide 4 slides up and down by two moving wheels 41 that are limited in H shaped steel 112 outsides, the left and right sides, upper end of elevating hopper 12 is rotationally connected by hanger 121 and slide 4, elevating hopper 12 leans against on slide 4, be rotatably connected to elevating hopper overturning oil cylinder 42 on slide 4, the piston rod of elevating hopper overturning oil cylinder 42 is connected with the engaging lug 122 on elevating hopper 12.
Rabbling mechanism 3 comprises mixing drum 31, and mixing drum 31 accumbency, on frame 2, are horizontally arranged with shaft 32 in mixing drum 31, on shaft 32, along the length direction dislocation of axle, erects mixing arm 33 is arranged, and the front end of mixing arm 33 is provided with stirring vane 34.Described mixing drum 31 consists of main cylinder 311 and cover 312 two parts, and the inwall of main cylinder 311 posts abrasion-proof backing block 313, and shaft 32 adopts self-aligning bearing to support.Described frame 2 is L-shaped, and mixing drum 31 is connected with frame 2 upper ends by the hanger 314 of mixing drum, is provided with the mixing drum overturning oil cylinder 35 be rotationally connected on frame 2, and the piston rod of mixing drum overturning oil cylinder 35 is connected with the engaging lug 315 on mixing drum 31.The bottom of described frame 2 is the fuel tanks that hold hydraulic oil, and the below of frame 2 is provided with road wheel 21.
Elevating hopper 12 is divided into three batch bins by baffle plate, is respectively cement ingredient storehouse, stone batch bin, sand batch bin, and the batch bin top is discharging opening, and a side of discharging opening is provided with water tank 5, and water tank 5 is connected with mixing drum 31 by flexible pipe.Be provided with liquid level valve 51 in described water tank 5, at first mine water accesses hydraulic oil cooler 52, linking springs automatic homing valve 53 afterwards, then connect liquid level valve 51, water tank 5 is connected with the sprinkler pipe 54 in being arranged on mixing drum 31 by flexible pipe.
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, hydraulic cylinder 13 promotes the first sprocket shaft 14, the second sprocket shaft 15 is risen by main haulage chain 18 and the common elevating hopper 12 that drives of auxiliary haulage chain 19, and concrete raw material feeding process is decomposed into and promotes and two actions of upset, can effectively reduce so the shared height of action.Feed mechanism has adopted multiplication principle, unit height of the every rising of hydraulic cylinder 13, common two unit height of elevating hopper 12 risings that drive of main haulage chain 18 and auxiliary haulage chain 19, hydraulic cylinder 13 strokes are amplified, increased the magnification of oil cylinder, overcome the unsettled shortcoming of employing telescopic cylinder movement velocity, strengthened the reliability of system.
Main haulage chain 18 1 ends are fixed on bottom girder 111 walks around tractive elevating hopper 12 after sprocket wheel, the front end of hydraulic cylinder 13 cylinder barrels connects the first sprocket shaft 14, auxiliary haulage chain 19 1 ends are fixed in upper beam 113, walk around the rear reverse tractive elevating hopper 12 of sprocket wheel 17 on the first sprocket shaft 14, realize the synchronous tractive of both direction to elevating hopper 12, and to make the velocity of displacement of elevating hopper 12 are 2 times of hydraulic cylinder 13 hoisting velocities.
Elevating hopper 12, around the hopper road wheel spinning movement of turning cylinder, completes to the feeding process of mixing drum 31, just because of this structure, the radius of gyration of elevating hopper 12 can be accomplished smaller, the space hold while also just having reduced material loading.Be quantitative water tank above elevating hopper, namely, completing to the quantitative water supply that has completed mixer in siccative on mixing drum, complete stirring.After material loading, the piston rod of upset elevating hopper overturning oil cylinder 42 is regained, and then state when elevating hopper is got back to as Fig. 1 utilizes operating valve to control the rising of elevating hopper and the withdrawal of elevating hopper overturning oil cylinder 42, elevating hopper 12 ground that falls back.
Elevating hopper 12 as shown in Figure 6 is the sheet metal weldment, inside is divided into three volume spaces by baffle plate, be used for respectively splendid attire cement, stone and sand, owing in advance through calculating in volume, having determined concrete raw material amount that mixing drum is required and the ratio between the three, as long as just can determine concrete volume proportion so fill these three volume spaces, its Position Design is lower, can easily realize artificial loading like this.
As Fig. 3 is that mixing drum 31 is poured the concrete be stirred into the working state figure of wet-spraying machine hopper, the joystick of operation banked direction control valves stretches out the piston rod of mixing drum overturning oil cylinder 35, mixing drum 31 just overturns around rotating shaft, the concrete be stirred is poured in wet-spraying machine, control mixing drum overturning oil cylinder 35 by joystick again after being finished down, mixing drum is regained to original position.
As shown in Figure 8, at first mine water accesses hydraulic oil cooler 52, accesses afterwards spring automatic homing valve 53, then accesses liquid level valve 51, and water tank 5 is connected with the sprinkler pipe 54 in being arranged on mixing drum 31 by flexible pipe.The operation principle of spring automatic homing valve 53 is under normality, ball valve by under the effect of spring force in closed condition, when External Force Acting, during at ball valve handle, ball valve is opened, pipeline is connected.The operation principle of liquid level valve is that water level descends in the water tank, and valve opens water supply, and when water level rises to while requiring water level, ball-cock assembly is closed, and valve stops supplying water.
During in original position, act on spring automatic homing valve when elevating hopper, spring automatic homing valve is opened, and mine water by liquid level valve, enters water tank by spring automatic homing valve.Water level in water tank arrives while requiring water level, and liquid level valve is closed automatically, stops to cistern water supply, and when elevating hopper starts material loading, spring automatic homing valve automatically cuts out under the effect of spring force.Along with rising and the upset of elevating hopper, the mine water in water tank, under the effect of gravity, enters the mixing drum sprinkler pipe by pipeline, starts watering.Complete material on elevating hopper, while getting back to original position, open spring automatic homing valve, starts to cistern water supply.A cycle period completes.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention also is not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.

Claims (8)

1. underground concrete mixer for coal mine, it is characterized in that: comprise frame, feed mechanism and rabbling mechanism, feed mechanism is positioned at the front end of frame, and rabbling mechanism is positioned on frame;
Described feed mechanism comprises support, elevating hopper, hydraulic cylinder, the first sprocket shaft, the second sprocket shaft, and support consists of bottom girder, the two H shaped steel that is erected at bottom girder top and upper beam;
The front end of the piston rod of hydraulic cylinder is connected with bottom girder, the front end of the cylinder barrel of hydraulic cylinder connects the first sprocket shaft, the rear end of the cylinder barrel of hydraulic cylinder connects the second sprocket shaft, and the two ends of the first sprocket shaft and the second sprocket shaft all are connected with directive wheel, and directive wheel is limited in the inboard of two H shaped steel;
Be provided with sprocket wheel on the first sprocket shaft and the second sprocket shaft, main haulage chain one end is fixed in bottom girder, walks around tractive elevating hopper after the sprocket wheel on the second sprocket shaft, and auxiliary haulage chain one end is fixed in upper beam, walks around after the sprocket wheel on the first sprocket shaft oppositely tractive elevating hopper;
The arranged outside of H shaped steel has slide, slide slides up and down by two moving wheels that are limited in the H shaped steel outside, the left and right sides, upper end of elevating hopper is rotationally connected by hanger and slide, elevating hopper leans against on slide, be rotatably connected to the elevating hopper overturning oil cylinder on slide, the piston rod of elevating hopper overturning oil cylinder is connected with the engaging lug on elevating hopper.
2. underground concrete mixer for coal mine according to claim 1, it is characterized in that: described rabbling mechanism comprises mixing drum, the mixing drum accumbency is on frame, be horizontally arranged with shaft in mixing drum, erect mixing arm is arranged along the length direction dislocation of axle on shaft, the front end of mixing arm is provided with stirring vane.
3. underground concrete mixer for coal mine according to claim 2, it is characterized in that: described mixing drum consists of main cylinder and cover two parts, and the inwall of main cylinder posts abrasion-proof backing block, and shaft adopts self-aligning bearing to support.
4. underground concrete mixer for coal mine according to claim 2, it is characterized in that: described frame is L-shaped, mixing drum is connected with the frame upper end by the hanger of mixing drum, be provided with the mixing drum overturning oil cylinder be rotationally connected on frame, the piston rod of mixing drum overturning oil cylinder is connected with the engaging lug on mixing drum.
5. underground concrete mixer for coal mine according to claim 4, it is characterized in that: the bottom of described frame is the fuel tank that holds hydraulic oil.
6. underground concrete mixer for coal mine according to claim 2, it is characterized in that: described elevating hopper is divided into three batch bins by baffle plate, respectively cement ingredient storehouse, stone batch bin, sand batch bin, the batch bin top is discharging opening, one side of discharging opening is provided with water tank, and water tank is connected with mixing drum by flexible pipe.
7. underground concrete mixer for coal mine according to claim 6, it is characterized in that: in described water tank, be provided with liquid level valve, at first mine water accesses hydraulic oil cooler, access afterwards spring automatic homing valve, access liquid level valve, water tank is connected with the sprinkler pipe in being arranged on mixing drum by flexible pipe again.
8. underground concrete mixer for coal mine according to claim 1, it is characterized in that: the below of described frame is provided with road wheel.
CN2012100440271A 2012-02-24 2012-02-24 Underground concrete mixer for coal mine CN102581954B (en)

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CN102581954B true CN102581954B (en) 2013-12-04

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CN102862232B (en) * 2012-08-28 2014-08-13 山西晋煤集团金鼎煤机矿业有限责任公司 Movable wet shotcrete mixing station
CN103203804B (en) * 2013-04-02 2015-09-09 湖南三民重工科技有限公司 All-hydraulic swing arm list horizontal axis forces concrete-agitating feeder
CN103381622B (en) * 2013-07-29 2015-09-23 江南大学 The reciprocating mixer of single shaft
CN105013388A (en) * 2015-07-03 2015-11-04 安徽中盛粮油进出口有限公司 Automatic toppling equipment for sesame oil stirrer
CN106426566B (en) * 2016-09-14 2019-02-12 金川集团股份有限公司 A kind of mine down-hole wet shotcreting mixing plant pulping device and method
CN106626060B (en) * 2016-11-17 2018-11-23 河南工程学院 Coal mine explosion-proof travelling bogie
DE102017009069B3 (en) * 2017-09-28 2018-12-13 K+S Aktiengesellschaft Device and method for the construction of a weather dam
CN108000718A (en) * 2017-11-22 2018-05-08 兰秋霞 A kind of coagulation process equipment

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