CN2371341Y - Impactor for breaking stone - Google Patents

Abstract

The utility model relates to an impacting device of a stone crushing device, and belongs to the field of mining, and can be used for the secondary crushing operation of large block of rock ores. The utility model is characterized in that the bottom part of a guiding device 3 is fixed with a seat ring 1 through screw bolts, the inside is provided with an up and down moving ram 2 driven by outside force, the side surfaces are provided with a travel control device for the control of the up-and-down move of the ram 2, and the top part is connected with a piston type drive unit through a flange, and is fixed by screw bolts. As the impacting device is used, stone crushing devices have the advantages of high stone crushing efficiency, crushing ability enhancement, effective realization of waste brushing operation prevention and buffering functions and stable and reliable work.

Description

The rubble percussion mechanism

The utility model belongs to the critical piece of the stone breaker of field of mining rock ore deposit breaking up of boulders, and it is made up of seat ring, block stamp, guiding device, drive unit and travel control device.

Chinese patent 91106882.1 discloses a kind of drop hammer type percussion mechanism (see figure 3); The tight hammer body 37 of wire rope 40 1 end bolts passes the inner chamber and the fixed pulley 41 on it of guide cylinder 38, and the other end connects the rope sheave of driver 39; Seat ring 4 is installed in guide cylinder 38 lower ends, and cushion pad 36 and buffer plunger 35 are housed therebetween, and the impact grinding stroke of its block stamp is realized by stroke pump 42 mounted thereto and stroke control valve 44 controls.

Though this percussion mechanism is simple in structure, easy to maintenance, but its impact energy can only have level adjustable, improving impact energy has only the quality and the impact stroke that increase block stamp to realize, so design then is subjected to the restriction of the physical dimension of percussion mechanism, otherwise it is huge that the structural volume of percussion mechanism will be tending towards, and the difficulty of processing that guiding is adjusted is big, is not easy to design the big percussion mechanism of impact energy.

The purpose of this utility model is to overcome the sufficient part of above-mentioned drop hammer type percussion mechanism, and provide a kind of not only compact conformation reasonable, difficulty of processing reduces, and impact stroke shortens, impact energy increases, and air defense is beaten and cushioned function and can realize effectively that all operation is reliable and stable, make the calculifragous efficiency height of second-time breakage stone machine, the percussion mechanism that breaking capacity is big.

The technical scheme that the utility model above-mentioned purpose reaches is:

The bottom of guiding device 3 connects seat ring 1 with bolton, its inside is equipped with by external force and is driven the block stamp 2 that moves up and down, the travel control device that the control block stamp 2 that install its side moves up and down, its top links to each other with the piston type drive unit by flange, and uses bolt;

The following sphere of piston type drive unit piston 5, its bulb with towards the ball joint of bell 2, hold tightly by two and half snap rings 14, the steel bushing 15 of cover combines as a whole piston 5 and block stamp 2 again, circlip 4 is contained in the top of steel bushing 15, and snaps in half snap ring 14; Drive control 7 and by bolt that the carriage 10 that is fixed on cylinder body 6 workers holds up, and by cingulum 8 fastening energy storage equipments 9; The lower end of cylinder body 6 is sleeved in the buffing pad 13, and the lower end of half snap ring 11 is stuck in the cannelure of buffing pad 13, and the middle shoulder of cylinder body 6 is pushed down in the upper end, and the periphery is with the collar 12, and two semi-rings 11 are combined as a whole;

The front end hinge of the lever 16 of travel control device connects stream wheel 18, contacts with block stamp 2; The other end of lever 16 is connected by the spool of connecting rod 17 with two position and four-way reversing valves 19;

The utility model rubble percussion mechanism makes the calculifragous efficiency height of second-time breakage stone machine in application, breaking capacity is big; Not only compact conformation is reasonable, and difficulty of processing reduces, and the impact stroke shortening, and impact energy increases, and air defense is beaten and cushioned function and can realize effectively that all operation is reliable and stable.

Be further described below in conjunction with accompanying drawing;

Fig. 1 is the structural representation of percussion mechanism of the present invention;

Fig. 2 is percussion mechanism control principle figure of the present invention.

Fig. 1 has described all structures of percussion mechanism of the present invention.It is by seat ring, block stamp, and guiding device, piston type drive unit and travel control device constitute.

The bottom of guiding device 3 connects seat ring 1 with bolton, its inside is equipped with by external force and is driven the bell that dashes that moves up and down, the side is equipped with the travel control device that control block stamp 2 moves up and down altogether, and its top links to each other with the piston type drive unit by flange, and uses bolt.

The piston type drive unit is by piston 5, and cylinder body 6 drives controll block 7, energy storage equipment 9, and carriage 10, cingulum 8, half snap rings 11 (2), the collar 12, buffing pad 13 constitutes.Lower part of piston is spherical, and its bulb is that the socket and spigot joint of block stamp 2 balls closes, and holds tightly by two and half snap rings 14, the net 15 of cover combines as a whole piston 5 and block stamp 2 again, and circlip 4 is contained in the top of steel bushing 15, and snap in half snap ring 14, prevent that steel bushing from ejecting when percussion mechanism is worked; Drive controll block 7 by being bolted to the top of cylinder body 6; The cartridge valve Z1, the Z2 that install in it cooperate with travel control device, and the epicoele of control piston 5 leads to pressure oil or leads to oil return, thereby realize the motion control of block stamp; Its side is installed with that the carriage that is fixed on the cylinder body 6 10 holds up, and by the energy storage equipment 9 of cingulum 8 fastenings; The lower end of cylinder body 6 is sleeved in the buffing pad 13, the lower end of partly blocking ball 11 is stuck in the spherical groove of buffing pad 13, and the middle shoulder of cylinder body 6 is pushed down in the upper end, the peripheral collar 12, two semi-rings 11 are combined as a whole, so form the movement travel (be cushion stroke) of cylinder body 6 in buffing pad 13.

Travel control device comprises lever 16, connecting rod 17, and roller 18, two position and four-way reversing valves 19, the front end hinge of lever 16 connects roller 18, or sways, and contacts with block stamp 2, and generation is rolled to rub and is examined; The other end of lever 16 is connected by the spool of connecting rod 17 with two position switching valves 19; When block stamp 2 was pushed down roller 18 and made lever 16 produce pendulum, connecting rod 17 drove spools and produces and move up and down, thereby has realized the commutation of two-position four-way to valve 19.

Fig. 2 has described the working condition of percussion mechanism of the present invention by reversing valve operated 27 controls.

1. block stamp rises

When block stamp 2 is in lower end position, flat side of a hammer 23 is pushed down roller 18 on it, because the effect of lever makes the two-position four way change valve 19 in the range controlling mechanism be positioned at " upper ", at this moment, the handle of reversal valve 27 is pushed " upper " position, pressure oil acts on Z2 control chamber in the drive unit piece 7 through reversal valve 27 and range controlling mechanism on the one hand, and Z2 closes, on the other hand, enter drive unit cavity of resorption 28 through the main shaft road, and communicate with energy storage equipment 17, at this moment and since control chamber lead to oil through two-position four way change valve, make the epicoele 26 energy oil returns of drive unit, therefore, the piston 5 of drive unit rises, and drives towards bell 2 and rises.Because required flow was less when block stamp 2 rose, unnecessary pressure oil enters and holds savings in the level energy device 9.

2. block stamp impacts

When dashing 2, hammer rises, it is the conical surface 22 pressure position rollers 18 down, up to make the two-position four-way valve commutation be positioned at " the next " by leverage, at this moment, the logical pressure oil of the control chamber of Z1 in the drive unit clamp dog 7, Z1 is closed, and the logical oil return of the control chamber of Z2, Z2 opens under the effect of pressure oil simultaneously, like this, the pressure oil of working connection enters the cavity of resorption 29 and the epicoele 26 of drive unit simultaneously, this moment, drive unit was equivalent to a differential hydro cylinder, because the usable floor area of epicoele 26 is far longer than the active area of cavity of resorption 28, so, piston 5 is down done accelerated motion under the effect of pressure oil, drive block stamp 2 and impact downwards.Along with the movement velocity increasing of piston 5, epicoele 26 required pressure oils increase, and at this moment, energy storage equipment 9 and hydraulic pump 21 have enough driving forces simultaneously to its fuel feeding to guarantee drive unit.

Push down roller 18 when the epicone of block stamp 2 once more towards 23, when making reversal valve 19 commutations, drive unit presents the state that block stamp rises once more, so goes round and begins again, and realizes the bump of block stamp 2.

3. singles' control

The single-impact of block stamp 2 then needs to control by reversing valve operated 27 handle, being about to handle dials behind " upper " position, after block stamp falls to impacting rock, handle is pushed " meta ", because pressure oil enters the control chamber of Z1, Z2 in the driving device controls piece 7 simultaneously, Z1, Z2 is closed simultaneously, at this moment, 26 sealings of drive unit epicoele make the stop motion of drive unit piston.

4. control is played in air defense

When rock by after broken, percussion mechanism is if can not stop automatically impacting, then its impact once more just all acts on the equipment self, face damages parts.This percussion mechanism itself has the function that automatic anti-aircraft is beaten.The empty phenomenon of beating is taking place, the piston 5 of drive unit moves downward fast, when the oil input channel 25 of its cavity of resorption 28 is pushed down on piston 5 surfaces, cavity of resorption 28 1 enclosed cavities, like this, even the handle of valve 27 is in " the next " position, the cavity of resorption 28 of piston 5 also can't advance pressure oil, block stamp can not be risen once more, thereby realized the antiaircraft control of beating.If will impact once more, then with block stamp jack-up, make the oil input channel 25 of cavity of resorption 28 break away from the surface of piston 5, make cavity of resorption 28 advance pressure oil once more.

5. impact mitigation measure

In operation process, the empty phenomenon of beating is always unavoidable, if there is not impact mitigation measure, then the impact energy of block stamp is all born by equipment self.This percussion mechanism has the two-stage pooling feature, at first, after sky is dismissed life, as previously mentioned, the face seal oil input channel 25 of piston 5 makes cavity of resorption 28 become enclosed cavity, at this moment, hydraulic oil in the enclosed cavity just has a suitable buffer spring that coefficient of elasticity is bigger, and absorbs the part energy of block stamp, and this is a first-level buffer; When the hydraulic pressure of this sealing is reduced to a certain amount ofly, energy remaining makes percussion mechanism piston 5 drive cylinder bodies 6 and moves together.At this moment, because cylinder body cavity of resorption 24 is common pressure chamber, the power on the cylinder body annulus area of acting on makes block stamp etc. do retarded motion, thereby has realized second level buffering.

Claims (1)

1. the percussion mechanism of the stone breaker of a field of mining carbon ore deposit breaking up of boulders is enclosed by Cuo, block stamp, and guiding device, piston type drive unit and travel control device constitute, and it is characterized in that:

1. the bottom of guiding device 3 connects seat ring 1 with bolton, its inside is equipped with by external force and is driven the block stamp 2 that moves up and down, its side is equipped with the travel control device that control block stamp 2 moves up and down, and its top links to each other with the piston type drive unit by flange, and bolt;

2. the bottom of the piston 5 of piston type drive unit is spherical, its bulb with have ball joint to hold tightly towards bell by two and half snap rings 14, the steel bushing 15 of cover combines as a whole piston 5 and block stamp 2 again, circlip 4 is contained in the top of steel generous 15, and snaps in half snap ring 14;

3. drive controll block 7 by being bolted to the top of cylinder body 6; The cartridge valve Z1, the Z2 that install in it cooperate with travel control device; Its side is installed with that the carriage 10 that is fixed on cylinder body 6 holds up, and by the energy storage equipment 9 of cingulum 8 fastenings;

4. the lower end of cylinder body 6 is sleeved in the buffing pad 13, and the lower end of half snap ring 11 is stuck in the cannelure of buffing pad 13, and the middle shoulder of cylinder body 6 is pushed down in the upper end, and the periphery is with the collar 12, and two semi-rings 11 are combined as a whole;

5. the front end hinge of the lever 16 of travel control device connects stream wheel 18, and contacts towards bell 2; The other end of lever 16 is connected with the spool of two position and four-way reversing valves 19 by connecting rod 17.

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