CN1025928C - Railway carriage automatic sampling device with rotary sampling head - Google Patents

Abstract

The present invention relates to a sampling device carrying out sampling operation on the tops of train carriages, which is composed mainly of a bridge frame, a walking bogie, a liftable sampling head on the bogie and an electric control hydraulic transmission system, wherein the bridge frame is capable of walking longitudinally along the carriages; the walking bogie is arranged on the bridge frame and is capable of moving transversally on the bridge frame; the electric control hydraulic transmission system is used for operating all the parts to act. Through the specially designed sampling head with a grab bucket type coal cutting board capable of rotating and closing, the sampling device is capable of effectively drilling to the depth of sampled coal seams according to the national standard requirements, removing surface float coal, meeting the carriage stationing requirements of different kinds of coal, different batch quantities and different specifications and sampling representative coal samples. The sampling device has the advantages of compact structure, high reliability and convenient operating maintenance.

Description

Railway carriage automatic sampling device with rotary sampling head

What the present invention relates to is a kind of sampling apparatus.What be particularly related to is a kind of device that train case fortune coal is carried out the top sampling.

Traditional train case top sampling is manually to be carried out, and the shortcoming one of artificial sample is that labour intensity is too big, and the 2nd, there are many artificial factors to cause the resultant error of sampling big in the sampling process, science, the poor accuracy of institute's coal sampling.For reducing personal error, improve the representativeness of coal sample, " coal science and technology " 1989 6 phases are topic with " the M122-1 type is gathered and processed sample associating unit ", disclosed a kind of coal sample harvester, this installs the mode of comprehensive overhead travelling crane handling object, the operating principle of the digger shovel control earthwork, this three's of elevating mechanism of colliery flatcar device characteristics, design its main composition and comprise a type frame, can be along the undercarriage of door type frame column slip up and down, be installed in the walking dolly on the undercarriage and be connected the sampling spade of walking dolly below and the sampling apparatus of the electric-control system that the control each several part moves, the transmission principle of its sampling spade is: motor passes through speed reduction unit, disk and push rod promote the coal shovel shovel and unload coal sample, walking dolly is by another motor-driven, can be with sampling spade along the undercarriage move left and right, undercarriage is driven to put by winch and puts, adopt a lateral attitude by railway carriage on the undercarriage and be equipped with stop, guarantee by an employing coal sample with this.Operating personnel only need to count and put the position by the per car of GB regulation during sampling, selected sampling routine operation push button on operator's console, and sampling spade just can be adopted coal sample from each point automatically, finishes sampling.The maximum weak point of this sampling apparatus is that the design feature of its sampling spade and forms of motion one are to get rid of surperficial float coal, does not reach the measurement sampling of stipulating among the GB475-83 and must go deep into the requirement of coal seam below 0.4 meter; The 2nd, can not cutting process to the gathering coal of adopting a position, spoil etc., no matter be that monoblock arranges or monoblock is taken in the representativeness that all can influence institute's sample thief, and the difficulty that accurately puts in place.

The objective of the invention is provides a kind of coal conveyor box top automatic sampling apparatus that can collect the coal sample of institute's sampled point coal seam degree of depth below 0.4 meter effectively reliably for the above-mentioned deficiency that overcomes prior art.

Realize the coal conveyor box top automatic sampling apparatus of the object of the invention, comprise the walking crane span structure, walking dolly that can transverse movement on crane span structure, liftable sampling head that is connected with this walking dolly and the electric-controlled hydraulic kinematic train of handling the each several part action, but described sampling head is the rotary sampling head of a folding, join by a hoist cylinder and walking dolly, its composition comprises pedestal, be arranged on the oil motor on the pedestal, be arranged on gear that is connected with the oil motor rotation axis in the pedestal and the ring gear that is meshed with this gear, be provided with a rolling bearing between the cylindrical of ring gear and the base internal wall, the lower end is connected with an intermediate sleeve, the lower end of pedestal is connected with a folding hydraulic cylinder in intermediate sleeve, be provided with rolling bearing between the outer wall of its folding hydraulic cylinder and the intermediate sleeve inwall, be connected with a rotary sleeve in the lower end of intermediate sleeve, be provided with a rotary shell in the rotary sleeve, be connected by the piston rod of pressure axis with the folding hydraulic cylinder, the rotary sleeve body be provided with rotary shell below have window, the lower end is hinged with several piece can draw the coal cutting plate that is closed form in, on the outer wall of rotary sleeve, be provided with one by drive link corresponding to the coal cutting plate, guide and be hinged on drive link and the coal cutting plate between the coal cutting plate folding gear train that constitutes of lever, this gear train is connected with rotary shell by drive block.

During device work, the walking crane span structure moves on coal yard machine for unloading coal track, the drive walking dolly is finished along the operation of axial (length) direction of train case together with sampling head and is located, walking dolly laterally moving on crane span structure finished the operation location along horizontal (width) direction of railway carriage, be about to the top that sampling head is placed at sampling point position, coal cutting this moment plate is in opening, operating switch makes pressure oil enter oil motor and makes its rotation, and by gear and ring gear drive intermediate sleeve and rotary sleeve, the coal cutting plate together rotates, pressure oil also enters hoist cylinder simultaneously, its piston rod acts on pedestal and drives whole sampling head decline, in this process, the plate " brill " that cuts of rotation enters the coal seam up to requiring the degree of depth, and the coal cutting plate is along with creeping into the gathering coal that it is run into, spoils etc. also are retained in the original place with the coal sample in the sampled point scope when smashing cutting.After " brill " reaches sampling depth, make the oil motor stall, the hoist cylinder piston rod stops descending, start the work of folding oil cylinder, the piston rod of folding oil cylinder is descending, the drive link that drives coal cutting plate folding driving mechanism by affixed with it rotary shell is descending, and activation lever is closed up the coal cutting plate, and the coal sample of sampled point is grasped lower end at rotary sleeve.Make the oil motor rotation drive the rotary sleeve rotation then, hoist cylinder drives whole sampling head rising simultaneously, after the window of rotary sleeve leaves the coal face, the top layer float coal of its rotary sleeve internal upper part is dished out from window under action of centrifugal force, and the coal sample in the enclosure portion of window bottom, promptly desired sampled point coal sample then is retained in the rotary sleeve, delivers to the sample preparation part, the suitable height on design window base can guarantee that then the weight of the coal sample that kept reaches the requirement standard.

Sampling apparatus compact conformation of the present invention, flexible movements, the reliability height, the railway carriage that can satisfy different coals, different batch, different mining sample loading mode, the different size requirement of layouting, and sampling in-placing precision height particularly can be got rid of surperficial float coal effectively and collects the coal sample below 0.4 meter that GB requires.

Below in conjunction with embodiment and accompanying drawing the present invention is described in further details.

Fig. 1 is a structural representation of the present invention.

Fig. 2 is that the A of Fig. 1 is to partial view.

Fig. 3 is the structural representation of sampling head.

As shown in Figure 1, sampling apparatus of the present invention by walking crane span structure 1, be arranged on the walking dolly 2 on the horizontal rail 33 of crane span structure, the liftable sampling head 3 and the electric-controlled hydraulic kinematic train 4 that are connected walking dolly below are formed.Wherein, crane span structure 1, walking dolly 2 can be continued to use common bridge crane structure form, for more adapting to the singularity of sampling request, cloth dot characteristics as sampled point reaches frequent commutation to the walking dolly displacement request, adopted the belt wheel dolly in the present embodiment, and place it on the cross track 33 that is erected on the crane span structure 1, and be respectively 2300mm with three strokes, 1150mm, the cylinder 5 of 575mm, No. two cylinders 6, No. three cylinders 7, the cylinder body two ends that utilize its piston rod drive walking dolly to bit pattern and laterally move, move it the requirement that distance and error are easy to reach GB, the while also is beneficial to the electronic system opertaing device that aiming at the mathematical operation operation of using and designing under industrial environment that can directly be driven various electro hydraulic valves by output point that is equipped with as programmable controller (PC) class.Being set to of its three oil cylinders: No. three oil cylinder 7 is fixed on the crane span structure end carriage, the cylinder tail flange of its piston rod and frame No. two oil cylinders 6 on No. two movable stands 8 is hinged, the piston rod of No. two oil cylinders is connected with an oil cylinder 5 by a movable stand 9, the piston rod 41 of an oil cylinder is hinged with the walking dolly vehicle body, No. one, No. two movable stand is installed on the cross track 33, and roller and side wheel are housed, can ensure that the oil cylinder orientation can move with corresponding cylinder action again.Be connected by a hoist cylinder 10 that is arranged in the middle of the dolly vehicle body between sampling head and the walking dolly, finish the upper and lower motion of sampling head by hoist cylinder.The formation of sampling head as shown in Figure 3, comprise the pedestal 13 that has a sampling head enhancing ring 12 that is connected with the piston rod 11 of hoist cylinder, the ring gear 16 that is arranged on oil motor 14 and the gear 15 that is connected with the oil motor rotation axis on the pedestal 13 and is meshed with gear 15, be provided with a rolling bearing 17 between the cylindrical of ring gear and the base internal wall, and be connected with an intermediate sleeve 18 on the lower surface, be connected with a folding hydraulic cylinder 19 on the lower surface of the pedestal in this intermediate sleeve 18, be provided with a rolling bearing 20 between its outer wall and the intermediate sleeve inwall, be connected with a tubular rotary sleeve 21 in the intermediate sleeve lower end, rotary shell 22 is horizontally set in the rotary sleeve, be connected with the piston rod 24 of folding oil cylinder by pressure bearing 23, along with moving up and down of piston rod, shell of revolution also moves up and down in rotary sleeve thereupon; At the lower position of rotary sleeve body, have the contour window in several bases 25, the volume that its base Lift divides with its lower end envelope regiment headquarters can reach the coal sample weight of GB requirement and be advisable.The coal cutting plate 26 that is arranged on the rotary sleeve lower end is three blocks of claw type coal cutting plates that are uniform state in the present embodiment, and is hinged by hinge 27 and rotary sleeve body lower end; The gear train that drives this coal cutting plate folding is made of drive link 28, lever 29 and drive block 30, wherein, drive link 28 is sleeved in the gathering sill 31 that is provided with on the rotary sleeve outer wall, lower end and lever are hinged, the upper end is affixed with drive block 30, it is affixed with rotary shell 22 that drive block 30 passes the guiding slotted eye 32 that is provided with corresponding to gathering sill 31 on the rotary sleeve body, and the other end of lever 29 and coal cutting plate are hinged; When folding oil cylinder piston bar 24 was descending, it is descending that driven in rotation shell 22 drives drive blocks 30, and actuating linkage 29 closes up coal cutting plate 26, with requiring the coal sample at degree of depth place to grasp in rotary sleeve, finishes sampling.The operation hoist cylinder makes it drive the sampling head rising, the oil motor rotation, along with rotary sleeve breaks away from the coal face, the float coal that its cover internal upper part divides is dished out from window under action of centrifugal force, the coal sample of the requirement point in the closed section of bottom then is retained in the rotary sleeve, be transported to by walking dolly above the receiving hopper of sample preparation part, operation folding oil cylinder makes it drive the up coal cutting plate of opening of folding driving mechanism, unloads coal sample.In the present embodiment, sample preparation part 40 is arranged on the crane span structure below, and can together move with crane span structure, conveniently to unload sample.The fashion of unloading coal is rotatable, anxious stops rotary sleeve, and coal sample is fallen under the double action of inertia and gravity, and this discharge way discharging is thorough, and not limited by coal sample moisture.

But the coal face that still can hitch a free lifting on the sampling head pedestal supports dish, and with an operate lifting oil cylinder, oil motor, the limit switch of folding oil cylinder supports the corresponding design of dish on pedestal with this coal face, dish 34 that the coal face is supported as shown in Figure 3 is arranged on one to be sleeved on the bottom of the sleeve 36 on the guide pole 35 affixed, guide pole 35 is connected with pedestal 13, an affixed cam lever 37 on sleeve, limit switch 38 is arranged on the pedestal corresponding to cam lever, reduce in the desired sampling depth process at sampling head, the coal face supports dish and will be propped up by the coal face and not descend with sampling head, when sampling head drops to projected depth, limit switch on the pedestal touches mutually with the cam lever that the coal face supports dish, thereby close hoist cylinder, oil motor, open the folding oil cylinder, promptly stop the downward movement of sampling head and the rotation of rotary sleeve, closed coal cutting plate is finished sampling, realizes the automatic control of the sampling head degree of depth.Along with the rise of sampling head, this coal face supports dish and progressively falls after rise to reference position under the deadweight effect again.

Also coal cutting tooth 39 can be set on the coal cutting plate, further to be beneficial to the coal cinder of cutting sample point; Adopt programmable controller (PC) in conjunction with the electric-control system of each several part peripheral cell, can make this device possess the robotization of height as this device.As the model machine of having manufactured experimently out, decapacitation is satisfied outside every standard of GB 474-83,475-83, also has the kinds of protect function, as: along the stroke limiting of body length, Width; Sampling head does not promote and puts in place, and above-mentioned two directions can not be moved or the like, with guarantee unlikely bump, damage railway carriage, the sampling first-class, the sampling time also can be controlled in 3 minutes and finishes.

Claims (3)

1, a kind of coal conveyor box top automatic sampling apparatus, comprise the walking crane span structure, walking dolly that can transverse movement on crane span structure, liftable sampling head that is connected with this walking dolly and the electronically controlled hydraulic system of handling the each several part action, it is characterized in that described sampling head is an open-close type rotation sampling head, its formation comprises the sampling head pedestal, be arranged on the oil motor on the pedestal, be arranged on gear that is connected with the oil motor rotation axis in the pedestal and the ring gear that is meshed with this gear, be provided with a rolling bearing between the cylindrical of ring gear and the base internal wall, the lower end is connected with an intermediate sleeve, the lower end of the pedestal in intermediate sleeve is provided with a folding oil cylinder, be provided with a rolling bearing between the outer wall of its folding oil cylinder and the intermediate sleeve inwall, be connected with a rotary sleeve in the lower end of intermediate sleeve, be provided with a rotary shell in the rotary sleeve, be connected by the piston rod of pressure bearing with the folding hydraulic cylinder, on the rotary sleeve body be provided with rotary shell below have window, the lower end is hinged with several piece can draw the coal cutting plate that is closed form in, on the outer wall of rotary sleeve, be provided with one by drive link corresponding to the coal cutting plate, guide and be hinged on drive link and the coal cutting plate between the coal cutting plate folding gear train that constitutes of lever, this gear train is connected with rotary shell by drive block.

2, automatic sampling apparatus according to claim 1, it is characterized in that also being provided with on the described sampling head pedestal can be with respect to the pedestal coal face of the lifting limit switch that supports dish and can support control hoist cylinder that the rising of dish touches, oil motor, the work of folding oil cylinder with the coal face voluntarily.

3, automatic sampling apparatus as claimed in claim 1 is characterized in that described walking dolly is respectively 2300 millimeters, 1150 millimeters, 575 millimeters oil hydraulic cylinder combination drive mechanism by three strokes.

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