CN202787997U - Distributing device - Google Patents
Distributing device Download PDFInfo
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- CN202787997U CN202787997U CN201220425647.5U CN201220425647U CN202787997U CN 202787997 U CN202787997 U CN 202787997U CN 201220425647 U CN201220425647 U CN 201220425647U CN 202787997 U CN202787997 U CN 202787997U
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Abstract
The utility model relates to a distributing device. A distributing arm frame (1) of the distributing device comprises at least two arm sections, the arm sections are hinged in sequence and are folded and extended relatively, a first arm section (2) of the distributing arm frame (1) is hinged on a supporting base of the distributing device, and the distributing device also comprises a locking device used for locking the first arm section (2) in a vertical position. On the premise of ensuring the maximum distributing height, part of the distributing radius can be abandoned innovatively, the support space for distributing operations can be reduced through the distributing device, possibility can be provided for reducing the strength of support legs, the sizes of flexible support legs can be reduced, the number of corresponding reinforcing components can be reduced, the purpose of reducing the weight of the distributing device can be achieved effectively, and the stability and safety of the distributing device in distribution can be ensured effectively.
Description
Technical field
The utility model relates to a kind of apparatus for distributing, for example concrete mixer.
Background technology
Apparatus for distributing, for example concrete mixer is the engineering mechanical device that is used for fluid foods pumping and cloth effect that extensively adopts in the engineering construction.Known ground, distributing arm support is installed on the concrete mixer, wherein on the distributing arm support concrete conveying pipe is installed, this distributing arm support generally comprises the single oil cylinder joint that can be folded relative to each other or stretch, usually be hinged with respectively hydraulic cylinder between the adjacent arm joint, the two ends of each hydraulic cylinder are hinged to respectively on the adjacent arm joint, thus by each hydraulic cylinder stretch drive the folding of corresponding arm joint or stretch.(for example be in the transition transport condition) when concrete mixer does not carry out the cloth operation, described distributing arm support is in folded state, to reduce the center of gravity of concrete mixer, guarantees the driving safety of concrete mixer.When concrete mixer carries out the cloth operation, owing to only be not enough to guarantee the stability of concrete mixer in ground by the wheel supporting of concrete mixer, telescopic outrigger generally is installed on the known ground concrete mixer, cloth job state analysis chart referring to concrete mixer shown in Figure 1, the telescopic outrigger that wherein lower right corner schematically shows concrete mixer among Fig. 1 stretches out and supports on the ground, cross binding span after telescopic outrigger stretches out is W, and it is L that span is supported in front and back.In this case, according to the actual needs of cloth operation, the respective arms joint of the distributing arm support of control concrete mixer folds or stretching routine accordingly, thereby carries out the concrete distributing operation.
Can see that by above-mentioned simple description you go out, the critical component of concrete mixer is with the distributing arm support of concrete conveyance to the cloth position.Distributing arm support is comprised of the arm joint that some joints are hinged, and rotates by Driven by Hydraulic Cylinder arm joint between the arm joint.During cloth, distributing arm support forms the cloth needs that various postures adapt to the construction plant.Briefly, cloth need to be nothing but cloth height and cloth length to the requirement of distributing arm support.For the technical data of concrete mixer, embody the cloth height of described distributing arm support and the parameter of cloth length and be " maximum cloth height " and " maximum cloth radius ".
Referring to shown in Figure 1, Fig. 1 shows the motion state analysis chart of the distributing arm support of concrete mixer when carrying out the cloth operation, wherein shows take maximum cloth height as 49 meters concrete mixer as example.As can be seen from Figure 1, " maximum cloth height " is 49 meters, and " maximum cloth radius " is 45 meters, wherein " maximum cloth height "=" maximum cloth radius "+bodywork height (for example 4 meters).
In general, at present Chinese market to the demand of concrete mixer towards higher cloth high development.But; the increase of the maximum cloth height of concrete mixer (maximum cloth radius also increases accordingly); the distributing arm support that means concrete mixer is more and more longer; correspondingly; the included arm joint of described distributing arm support gets more and more; the chassis bridge number of concrete mixer is also more and more; complete machine weight is increasing; especially be accompanied by the increase of the maximum cloth height of distributing arm support; stability in order to ensure the concrete mixer cloth; the front and back span of the telescopic outrigger of concrete mixer and horizontal span all need significantly to increase; this need to increase the flexible strokes such as telescopic outrigger and support strength etc.; thereby so that the weight of complete machine further increases, this has usually surmounted the limit of bearing capacity on road traveling state road surface, and has consisted of the bottleneck of restriction concrete mixer technical development.
Need to prove that at this above-mentioned only is that concrete mixer is that example is described, but these problems are present in equally on the multiple concrete distributing equipment, such as concrete distributing car, concrete distributing trailer etc.In addition, apparatus for distributing of the present utility model also is not limited to for concrete cloth operation, such as the cloth operation of the fluid foods such as mud.
For the problems referred to above that face, prior art mainly is to concentrate on distributing arm support is carried out in the Lightweight Technology improvement, mainly be by adopting high-intensity lightweight steel or new material (carbon fiber for example particularly, the new materials such as aluminium alloys) reduce the weight of distributing arm support, but, this has also brought new problem simultaneously, the problem with Technological adaptability and the using adaptability of new material of increasing considerably such as cost, particularly, for example the manufacturing cost of carbon fiber is very high, and the component such as arm joint of each carbon fiber cloth jib all need the extra mould of making special use to produce.In addition, for carbon fiber and aluminum alloy materials, be applied to the abominable building operations place of environment, its decay resistance, long functional reliability etc. are all still to be tested.
Because the problems referred to above of prior art need to provide a kind of novel apparatus for distributing, can under same cloth height situation, only needing the support span of less, thereby be conducive to reduce complete machine weight.
The utility model content
Technical problem to be solved in the utility model provides a kind of apparatus for distributing, and this apparatus for distributing can be used in the support span of passing through less when the cloth operation and realizes relatively large cloth height.
In order to solve the problems of the technologies described above, the utility model provides a kind of apparatus for distributing, the distributing arm support of this apparatus for distributing comprises hinged and can be folded relative to each other at least two joint arms joints of stretching, extension successively, the first segment arm joint of this distributing arm support is hinged on the supporting basis of described apparatus for distributing, wherein, described apparatus for distributing also comprises for the locking device that described first segment arm joint is locked in vertical position.
Preferably, be hinged with respectively hydraulic cylinder between the supporting basis of described first segment arm joint and described apparatus for distributing and between the adjacent described arm joint, be provided with the reversal valve as flexible commutation control on the hydraulically extensible control loop of the described hydraulic cylinder between wherein said first segment arm joint and the described supporting basis, this reversal valve is O type three position four-way directional control valve, and this O type three position four-way directional control valve doubles as described locking device.
More preferably, the reversal valve on the expansion control loop of each hinged described hydraulic cylinder is respectively O type three position four-way directional control valve between the alternate arm of the described distributing arm support joint.
Selectively, described locking device is latch locking mechanism, this latch locking mechanism comprises latch, be fixed with supporting plate on the wherein said first segment arm joint, in described first segment arm section during in vertical state, pin hole on the described supporting plate can be aimed at the mating holes on the supporting basis of described apparatus for distributing, described latch can being inserted in described pin hole and the mating holes, thereby described first segment arm joint is locked in vertical state.
Typically, described apparatus for distributing is concrete mixer, and the supporting basis of described apparatus for distributing is the panoramic table of described concrete mixer.
Pass through technique scheme, the utility model provides a kind of Promethean apparatus for distributing, when cloth operates, can be at least so that first segment arm joint remains on vertical state, and after other arm joint launches, control it according to the cloth needs and stretch accordingly or folding movement, to carry out the cloth operation.That is to say, apparatus for distributing of the present utility model can be under the prerequisite of guaranteeing maximum cloth height, by abandoning originally a part of cloth radius, thereby so that apparatus for distributing can reduce the support span of supporting leg, and for the intensity that reduces supporting leg provide may, thereby can be so that the size reduction of telescopic outrigger, corresponding reinforcement reduces, effectively reached thus the purpose of apparatus for distributing loss of weight, and stability and safety when effectively having guaranteed the apparatus for distributing cloth.In general, with the method for existing apparatus for distributing (for example concrete mixer) loss of weight mainly be to pass through material improvement, namely utilize carbon fiber to make jib or other parts difference, and the utility model is by becoming possibility so that reduce design span and the intensity of underframe supporting leg, thereby be conducive to reduce the design weight of complete machine, this can be in a short time at apparatus for distributing, and especially the concrete mixer field makes a breakthrough, and can produce obvious beneficial effect.Apparatus for distributing of the present utility model is used for realizing described cloth operating process, so it has above-mentioned advantage equally.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Following accompanying drawing is used to provide further understanding of the present utility model; and consist of the part of manual; itself and the following specific embodiment one are used from explanation the utility model, but protection domain of the present utility model is not limited to following the drawings and the specific embodiments.In the accompanying drawings:
Fig. 1 is the analysis schematic diagram of the concrete mixer of prior art distributing arm support motion state when carrying out the cloth operation, wherein shows as 49 meters concrete mixer has carried out analyzing as example take maximum cloth height.
Fig. 2 is the analysis schematic diagram of the gravity center shift state of concrete mixer when carrying out the cloth operation.
Fig. 3 is concrete mixer analysis schematic diagram under the telescopic outrigger holding state when carrying out the cloth operation.
Fig. 4 is the force analysis schematic diagram of concrete mixer telescopic outrigger when carrying out the cloth operation.
Fig. 5 is the FB(flow block) of the apparatus for distributing operating process of the utility model specific embodiment.
Fig. 6 is the structural behavior schematic diagram that adopts apparatus for distributing of the present utility model distributing arm support when carrying out the cloth operation.
Description of reference numerals:
1 distributing arm support; 2 first arms joint;
3 telescopic outriggers.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated; should be understood that; the specific embodiment described herein only is used for description and interpretation the utility model, and protection domain of the present utility model is not limited to the following specific embodiment.
At first need to prove, although the hereinafter main cloth operating process of describing apparatus for distributing of the present utility model as an example of concrete mixer example, but for those skilled in the art apparently, apparatus for distributing of the present utility model is not limited to concrete mixer, but can be applied to have any apparatus for distributing of distributing arm support, such as concrete distributing car, concrete distributing trailer etc.In addition, apparatus for distributing of the present utility model also is not limited to be applied to the control of concrete distributing operation, and the cloth operation of any fluid foods (such as mud etc.) all can be suitable for the technical conceive of apparatus for distributing of the present utility model.Therefore; major technique design of the present utility model is to adopt a kind of apparatus for distributing that is different from prior art, and is not limited to specific application, any apparatus for distributing with distributing arm support; as long as it adopts technical conceive of the present utility model, it all belongs to protection domain of the present utility model.
For technical problem mentioned above, because those skilled in the art exist conventional thinking in the prior art always, under the situation that the cloth height increases, stability when guaranteeing apparatus for distributing (for example concrete mixer) cloth operation, must need correspondingly to increase support span and the support strength of telescopic outrigger, this has consisted of those skilled in the art's habitual thinking set, basically formed a kind of technology prejudice, so that those skilled in the art in the face of said circumstances the time, do not go to consider the possibility of other side substantially.And from the distributing arm support of apparatus for distributing complicated gravity center shift state the cloth operation process, those skilled in the art do not pay the possibility that creative work also is difficult to analyze other side on technological layer.Therefore, how relatively to reduce required support span and support strength under the prerequisite that realizes same cloth height, this is the actual technical barrier that consists of an extremely difficult solution to those skilled in the art.
In order to help those skilled in the art to understand the technical solution of the utility model, before specifically describing the specific embodiment of the present utility model, below the technical Analysis process of carrying out before the technical solution of the utility model of obtaining is described at first.On this basis, will at first describe apparatus for distributing cloth of the present utility model operating process, on this basis, draw the specific embodiment of apparatus for distributing of the present utility model.
Particularly, under the various states of described apparatus for distributing, the several work state in distributing arm support folded state and the cloth operation process for example, the position of centre of gravity of described distributing arm support are to exist to change, and this causes the position of centre of gravity of the complete machine of apparatus for distributing also to have variation.But for the stability of apparatus for distributing, what have more crucial meaning is that distributing arm support position of centre of gravity of (being that each arm section of distributing arm support is in states such as stretching, extension or half stretching, extensions) in the cloth operation process changes.For those skilled in the art apparently, each arm of distributing arm support joint all is in extended configuration, and namely distributing arm support is under the full extended configuration, described apparatus for distributing stable minimum, the i.e. the easiest danger of toppling.Carry out for a long time the large component analysis data that accumulate of the apparatus for distributing research and development such as concrete mixer according to the applicant, in the cloth operation process, when distributing arm support is under the full extended configuration, the position of centre of gravity of described distributing arm support basically be in distributing arm support along the position of its length direction apart from about 1/3 length of the pin joint of turntable.Be at distributing arm support under other state of non-full stretching, extension, the position of centre of gravity of distributing arm support can change to some extent, but the distance of this position of centre of gravity and turntable pin joint can not exceed 1/3 length of distributing arm support under the above-mentioned full extended configuration substantially.Therefore, in order effectively to guarantee the reliability of analytic process, can analyze as the basis take the position of centre of gravity of distributing arm support under the full extended configuration of distributing arm support, the position of centre of gravity that namely can determine described distributing arm support be in distributing arm support along the pin joint 1/3 length place of its length direction apart from turntable, in this case, the position of centre of gravity of described distributing arm support is determined, when distributing arm support is followed the panoramic table rotating 360 degrees, the center of gravity of distributing arm support, the lower dress except distributing arm support of concrete mixer (mainly comprises underframe, supporting leg, pumping installations and chassis) center of gravity and the center of gravity of complete machine have stable variation track.
As shown in Figure 2, set up an office A, B, C, O is respectively machine gravity, distributing arm support center of gravity, lower dress center of gravity, the projected position of the distributing arm support centre of gyration (being the center of rotation of panoramic table) on horizontal plane, wherein take the centre of gyration O of distributing arm support as the origin of coordinates, in addition, because the position of centre of gravity of the lower dress of concrete mixer does not change, take the line between O point and the C point as longitudinal axis Y(namely along the longitudinal direction of concrete mixer), be the X-axis horizontal direction of concrete mixer (namely along) from the O point perpendicular to the coordinate axes of Y-axis in this case, thereby set up coordinate system.
Under the above-mentioned situation of setting up coordinate system, when distributing arm support is in a certain position, establish OB=R, OC=b, the angle of distributing arm support and X-axis are θ, then the center of gravity B of the distributing arm support coordinate figure of ordering is B(Rcos θ, Rsin θ), the coordinate figure that C is ordered is C(0 ,-b).According to analytic geometry, Focus Theory principle and sum up accordingly formula, the center of gravity A of described apparatus for distributing complete machine must be on the line between 2 of B, the C, and A(xA, yA) coordinate figure of point can pass through following formula (1) calculating:
W1, W2, W are respectively the lower dress of distributing arm support, concrete mixer and the weight of complete machine in the formula, W=W1+W2 wherein, and obviously, formula (1) is the parametric equation take the θ angle as parameter, eliminates the θ angle, gets following formula (2) through conversion:
As seen, the track that the machine gravity of concrete mixer changes is a circle, and wherein center of circle O1(is referring to Fig. 2) coordinate be (0 ,-bW2/W), radius R
HeavyBe RW1/W.
By above abbreviated analysis as seen, when the distributing arm support of apparatus for distributing (for example concrete mixer) longer (length of distributing arm support is representing the cloth radius), the weight W 1 of distributing arm support is just larger, the projected length R of the distance of the center of gravity of distributing arm support and the distributing arm support centre of gyration on horizontal plane is also larger, and the barycenter trajectory radius of circle R1 of corresponding complete machine is also just larger.
On the basis of above-mentioned analysis, the distributing arm support of concrete mixer is longer, and the span that is used for the telescopic outrigger of support apparatus for distributing (for example concrete mixer) work when apparatus for distributing carries out the cloth operation also should be larger.Particularly, referring to shown in Figure 3, the telescopic outrigger 3 of concrete mixer launches shown in the schematic diagram, wherein M, N, K, the L telescopic outrigger that is respectively the concrete mixer both sides supports to four strong points on the ground, first take the centre point O1 of the barycenter trajectory circle of complete machine as starting point, take a G as intersection point, make any limit in the quadrangle such as the vertical line of MN line segment, the intersection point of the barycenter trajectory of this vertical line and complete machine circle is Q, with the intersection point of line segment MN be G.If the length value of line segment QG is L1, then L1 be point on the locus circle of jib when revolution machine gravity to the beeline of line segment MN, the corresponding line of shortest length segment length of locus circle L2, L3, the L4 of the machine gravity when finding out other 3 limits of quadrangle bearing surface and jib and turning round of using the same method.Relatively the size of L1, L2, L3, L4 value is found out one the shortest in 4 length, and establishing this beeline is S
Min, that is: S
Min=min{L1, L2, L3, L4}, then S
MinExcrements can be used to weigh the index of complete machine stability this moment.Apparently, by Theory of Stability as can be known, each line segment length L1, L2, L3, L4 must be the prerequisite of comparison greater than zero, otherwise will cause pump truck to be tumbled, this shows, above-mentioned L1, L2, L3, L4 is directly reflecting horizontal span and the front and back span of telescopic outrigger, this span should be more than or equal to the track diameter of a circle of the machine gravity of apparatus for distributing (in namely the quadrangle that consists of of four strong points should be included in the locus circle of machine gravity), by above-mentioned formula (1) as can be known, and the locus circle of machine gravity and length distributing arm support, the weight of distributing arm support, there is direct proportional relation in the position of centre of gravity of distributing arm support etc., in this case, in order to guarantee the stability of apparatus for distributing, so that in the quadrangle that four strong points consist of is included in the locus circle of machine gravity, the span size of telescopic outrigger also with distributing arm support length, distributing arm support weight, the position of centre of gravitys of distributing arm support etc. are directly related, especially it should be noted that, all are projections on horizontal plane at the analysis chart of Fig. 2 and Fig. 3, so actual cloth radius that is representing apparatus for distributing of distributing arm support length, that is to say, the span of telescopic outrigger is directly related with the cloth radius of apparatus for distributing, when the cloth radius reduces, mean that the span of telescopic outrigger can reduce.
Force analysis figure referring to telescopic outrigger shown in Figure 4, among the figure P1 to P4 be the ground that bears of four strong points of telescopic outrigger in the face of the anti-supporting role power (abbreviation ground reaction force) that makes progress of supporting leg, broken circle is the barycenter trajectory circle of apparatus for distributing (for example concrete mixer) self gravitation.Usually, the general type that the telescopic outrigger on the apparatus for distributing is arranged should be isosceles trapezoid, and namely the longitudinal midline line with respect to apparatus for distributing is arranged symmetrically with.Now take this trapezoidal center line as the y axle, take through the center of circle O1 of described apparatus for distributing barycenter trajectory circle and the straight line vertical with the y axle as the x axle, set up rectangular coordinate system as shown in Figure 4, if θ changes in 1≤90 ° of scope of 0 °≤θ, under situation, guarantee apparatus for distributing, for example the stability of concrete mixer, need to guarantee dynamic balance and equalising torque, get following formula (3) according to space parallel power series balance equation:
The ground reaction force θ 1 that following formula (3) middle P1, P2, P3, P4 are respectively four strong points of telescopic outrigger arrives the connecting line of initial point O1 and the angle between the x axle for any point on the center of gravity locus circle; A1 be isosceles trapezoid the upper base edge lengths 1/2; B1 be isosceles trapezoid bottom length 1/2; R1 is the barycenter trajectory radius of a circle of apparatus for distributing; W is the complete machine weight of apparatus for distributing (for example concrete mixer).
With regard to apparatus for distributing, when the machine gravity of apparatus for distributing is in the formed quadrangle scope of four strong points of telescopic outrigger, the weight of complete machine is to be shared by four strong points of telescopic outrigger, guarantees that namely four strong points of telescopic outrigger all contact with ground.In above-mentioned formula (3), problem supposes that apparatus for distributing has tipping trend around the Y-axis right side under the egregious cases in Fig. 4 for convenience of explanation, and this moment, P1 and P4 were zero, with the example that is calculated as of P2, can draw following formula (4) according to three equatioies in the formula (3):
Can find out from this formula (4), there is positive correlation in the barycenter trajectory radius of circle R1 of the size of P2 and apparatus for distributing, as indicated above, when the length of the distributing arm support of apparatus for distributing reduces and so that cloth radius when reducing, correspondingly the barycenter trajectory radius of circle R1 of apparatus for distributing also reduces, in this case, can reduce the span (being horizontal span and front and back span) of telescopic outrigger, as long as the quadrangle that four strong points of assurance telescopic outrigger consist of is included in the locus circle of machine gravity interior, when the horizontal span of barycenter trajectory radius of circle R1 and telescopic outrigger (namely corresponding to the a1 in the above-mentioned formula (4), b1), from formula (4), can find out, even under egregious cases, also and do not mean that the value of P2 can increase, for example reduce under the situation of determined value at the cloth radius, the horizontal span by the appropriate design telescopic outrigger reduce value, can be so that the value of P2 increase even reduces.Similarly, similar derivation by above-mentioned formula (3), can obtain the design formulas of P1, P3, P4, problem for convenience of explanation, all can suppose to be similar to above-mentioned tipping critical condition (the corresponding suffered ground reaction force of supporting leg is maximum or basic maximum under critical condition, is enough to satisfy the normal use needs of apparatus for distributing).This situation is ideal for the design of apparatus for distributing, simple, by so that the horizontal span of telescopic outrigger reduce, the flexible stroke that this means telescopic outrigger can diminish, correspondingly the weight of telescopic outrigger can reduce, thereby alleviate the weight of complete machine, further, when the cloth radius of apparatus for distributing reduces value for predetermined value, by the span of telescopic outrigger rationally is set, can so that the suffered reaction of bearing of each strong point not increase even reduces, this means that the support section at each telescopic outrigger can satisfy the situation decline low-intensity of instructions for use, thereby be conducive to further reduce the complete machine weight of apparatus for distributing.
Comprehensive whole analyses above as can be known, the span size of supporting leg is decided by the maximum cloth radius of distributing arm support, and the construction operating mode of mainly tackling for apparatus for distributing (for example long-armed concrete mixer) is more and more higher building, and this also is the actual requirement that apparatus for distributing constantly increases maximum cloth height.If can be when guaranteeing maximum cloth height, reduce a part of cloth radius, as mentioned above, the span of supporting leg can reduce so, span reduces, by the value that reduces of supporting leg span rationally is set, can be so that the anti-supporting role power in the ground of telescopic outrigger reduces or does not increase, for example the underframe of concrete mixer and the design strength of supporting leg can reduce apparatus for distributing like this, thereby the size that not only can reduce by the span of dwindling telescopic outrigger supporting leg is come so that weight reducing, and further reduce the support member weight such as supporting leg by the intensity (such as reducing corresponding reinforcement) that reduces the support members such as supporting leg, thereby can significantly reduce the complete machine weight of apparatus for distributing.
Based on above-mentioned analysis, referring to Fig. 5 and shown in Figure 6, apparatus for distributing of the present utility model adopts brand-new cloth operating process, the distributing arm support 1 of described apparatus for distributing comprises hinged and can be folded relative to each other at least two joint arms joints of stretching, extension successively, wherein, described cloth operating process comprises: the first, and the first segment arm joint 2 of controlling described distributing arm support 1 moves to vertical state, and so that this first segment arm joint 2 remains on described vertical state; The second, other arm joint of controlling described distributing arm support 1 moves to carry out the cloth operation, and remains on described vertical state so that described first segment arm saves 2 all the time in the cloth operation process.
It should be noted that at this, in above-mentioned technical conceive scope, first segment arm joint 2 modes that remain on vertical state can be adopted various suitable modes, the concrete form that for example exemplifies in hereinafter the apparatus for distributing, preferably, in described first step, so that described first segment arm joint is locked in described vertical state; And in described second step, so that described the first arm joint is locked in described vertical state all the time in described cloth operation process, this locking can easily realize by mechanical caging or hydraulic locking, get final product thereby in follow-up cloth operation process, only need other arms joints of wholwe-hearted control to carry out cloth motion simulation, thus convenient easy in operation.
Above-mentioned apparatus for distributing typically can be concrete mixer.With regard to apparatus for distributing, the first segment arm of described distributing arm support 1 saves 2 and refers to and the hinged arm of panoramic table joint knownly, can be defined as more widely a directly hinged joint arm joint of described distributing arm support 1 and supporting apparatus for distributing basis or supporting station (for example panoramic table) in the utility model.
Fig. 6 has shown the cloth surface analysis schematic diagram of distributing arm support 1 employing the utility model cloth operating process of this concrete mixer as example as 49 meters concrete mixer take maximum cloth height.Shown in Fig. 6, under the situation that adopts cloth operating process of the present utility model, the cloth areal map of this concrete mixer becomes: the length of " maximum cloth height "=" maximum cloth radius "+bodywork height (for example 4 meters)+first segment arm joint; The length of the length of the distributing arm support under " maximum cloth radius "=full extended configuration-first segment arm joint.
Particularly, when apparatus for distributing (for example concrete mixer) adopts aforesaid operations process of the present utility model, because the joint number of distributing arm support and length do not change with respect to the existing product of same model, when the utility model carries out the cloth operation, first so that first segment arm joint 2 move to vertical state and lock it in this vertical position, in follow-up cloth operation, only so that other arm joint of distributing arm support 1 moves to carry out the cloth operation, that is to say, the utility model is by adopting unique cloth operating process, guaranteed the maximum cloth height of apparatus for distributing, on this basis, because first segment arm joint 2 is only born the function that increases the cloth height, and do not participate in increasing the function of cloth radius, this moment, the maximum cloth radius of apparatus for distributing depended on the length sum that other arm of distributing arm support 1 saves, in other words, when described apparatus for distributing adopts the cloth operating process of above-mentioned uniqueness of the present utility model, can be under the prerequisite that guarantees maximum cloth height, reduce maximum cloth radius, thus can be so that this apparatus for distributing reduces the support span of telescopic outrigger, and by designing the support strength that reduces telescopic outrigger, thereby can reduce the weight of the support members such as telescopic outrigger, thereby significantly reduce the weight of complete machine.
In the above-mentioned technical conceive scope of cloth operating process of the present utility model, preferably, in described first step, in order easily first segment arm joint 2 to be moved to vertical state, under the situation that can lock at other arm joint with described distributing arm support 1, first segment arm joint 2 is moved to vertical state.This can be avoided first segment arm joint 2 in motion process, and other arm saves the motion that meets accident, thereby disturbs the motion of first segment arm joint 2.
Under above-mentioned preferred embodiment, because sequential control is adopted in the motion of distributing arm support substantially, further preferably, in described second step, from the minor details arm joint of described distributing arm support 1, the lock-out state that respective arms saves in other arm joint of this distributing arm support 1 of in turn release is also controlled this respective arms joint motion, thereby other arm joint of controlling this distributing arm support in turn launches.It should be noted that at this, here only be initially other arm joint of distributing arm support to be extended successively in the cloth operation, thereby be convenient to follow-up cloth Working motion control, each arm joint in this other arm joint launches and guarantees can mutually not form in the situation of mutual interference, in actual cloth process, can be according to the cloth needs, control that arbitrary arm joint stretches or folding movement accordingly in this other arm joint.
Certainly, the motion mode of other arm joint of above-mentioned distributing arm support only is the typical motion mode of distributing arm support, the mode of this sequential control campaign mainly is from minor details arm joint setting in motion, avoids causing interference from second section arm joint setting in motion under the state that other arm joint folds.Certainly, the motion mode of other arm joint of above-mentioned distributing arm support 1 also is not limited to the form of said sequence motion, other simultaneously motion of arm joint at distributing arm support is unlikely to cause under the situation of interference, selectively, in described second step, the also lock-out state of each arm joint in other arm joint of the described distributing arm support 1 of release simultaneously, and each arm joint of controlling in other arm joint of this distributing arm support 1 launches simultaneously.
In addition, as more complete apparatus for distributing cloth operating process in operation, further, described cloth operating process also comprises third step, namely after finishing the cloth operation, so that folding into described first segment arm, other arm joint of described distributing arm support 1 saves on 2, and then the lock-out state of the described first segment arm joint 2 of release, and control described first segment arm joint 2 motions so that other arm joint of the described distributing arm support of this first segment arm joint 2 drives moves to the initial fold position on the described apparatus for distributing.
In above-mentioned third step, preferably, in described third step, begin to save to the minor details arm from the second section arm joint of described distributing arm support 1, fold on the described first segment arm joint 2 so that other arm joint of described distributing arm support 1 is passed successively, and save the position that each arm saves in this other arm joint of folding rear locking at described other arm.The advantage of operation is like this, when first segment arm joint 1 resets, can whole drive other arm joint and be returned to initial fold position on the apparatus for distributing, prevent that other arm joint from saving in 1 motion process accident at the first arm and moving and cause interfering, thereby strengthen reliability and the safety of operation.
In addition, annotatedly be, the above-mentioned specific embodiment only is that first segment arm joint is described for example, in fact can find by technical conceive of the present utility model, the utility model only is not limited to first segment arm joint 2 is locked in vertical state, but can in turn at least two joint arm joints of distributing arm support 1 be locked in vertical state from 2 beginnings of first segment arm joint, and form the cloth radius to carry out the cloth operation by other arm joint.But; this further variant reality has been included within the protection domain of above-mentioned basic embodiment; how much quantity that no matter is locked in the arm joint of vertical state is; all should lock successively from the beginning of first segment arm joint; otherwise in the cloth operation process; if first segment arm joint 2 can freely-movable, then can destroy the vertical state of the arm joint of back.
The cloth operating process of apparatus for distributing of the present utility model has more than been described, by this cloth operating process, so that apparatus for distributing (for example concrete mixer) can reduce the span of telescopic outrigger relatively, thereby so that apparatus for distributing can alleviate complete machine weight effectively.This cloth operating process must not need the control element (for example Hydraulic Elements) to apparatus for distributing itself to improve pointedly and can realize, after for example a certain concrete mixer adopts cloth operating process of the present utility model, it can correspondingly reduce by design the support span of telescopic outrigger, realize thus the complete machine weight of less, when this apparatus for distributing is implemented distributing method of the present utility model, although it can adopt custom-designed control technology, but these control technologys are not necessary component of the present utility model, even do not adopt these control technologys, manual operations by operating personnel also can realize, for example carries out manual operations by operating personnel and adopts latch locking mechanism to realize that the locking of the vertical state of above-mentioned first segment arm joint can realize fully; For another example, provide support to be fixed in vertical state for first segment arm joint 1 extraly by corresponding machine automatization arm.That is to say that above-mentioned apparatus for distributing cloth of the present utility model operating process is not limited to adopts specific control technology to realize, any apparatus for distributing, as long as it adopts cloth operating process of the present utility model, it all belongs to protection domain of the present utility model.
In order to help to it will be appreciated by those skilled in the art that the utility model provides a kind of specific embodiment of apparatus for distributing, this apparatus for distributing is supporting to have corresponding structure to realize above-mentioned cloth operating process.
Particularly, the utility model provides a kind of apparatus for distributing, the distributing arm support 1 of this apparatus for distributing comprises hinged and can be folded relative to each other at least two joint arms joints of stretching, extension successively, wherein, described apparatus for distributing also comprises for the locking device that the first segment arm joint 2 of described distributing arm support 1 is locked in vertical position.
As mentioned above, because the first segment arm of distributing arm support 1 joint 2 directly is hinged on the supporting basis (for example panoramic table) of apparatus for distributing, therefore the most simply, above-mentioned locking device can be simple latch locking mechanism, for example fix corresponding supporting plate at first segment arm joint 2, when first segment arm joint 2 is in vertical state, pin hole on the supporting plate on the first segment arm joint 2 is aimed at the mating holes on the apparatus for distributing (for example panoramic table), latch is inserted in the pin hole and mating holes on the supporting plate, can easily first segment arm joint 2 be locked in vertical state.When the arm joint that is locked in vertical state comprises successively adjacent at least two arms joints of first segment arm joint, between first segment arm joint and second section arm joint, the supporting plate that has accordingly pin hole is set, after with the locking of first segment arm joint, in that being locked onto first segment arm joint by above-mentioned similar latch with second section arm joint, second section arm joint gets final product, the rest may be inferred, repeats no more.
Certainly, because apparatus for distributing is mechanical as a kind of engineering construction, it extensively adopts hydraulic control system.Therefore, apparatus for distributing, for example the locking device on the concrete mixer is mainly realized by hydraulic control technology, the most simply, be hinged with respectively hydraulic cylinder between the first segment arm joint 2 of described distributing arm support 1 and the supporting basis (for example panoramic table) of apparatus for distributing and between the adjacent described arm joint, wherein, be provided with the reversal valve for flexible commutation control between the supporting basis of described first segment arm joint 2 and described apparatus for distributing on the hydraulically extensible control loop of hinged described hydraulic cylinder knownly, this reversal valve is O type three position four-way directional control valve, and this O type three position four-way directional control valve doubles as described locking device.Particularly, when first segment arm joint 2 moves to vertical state, switch to meta by O type three position four-way directional control valve, utilize its meta cutoff function first segment arm joint can be locked in vertical state.
Preferably, the reversal valve on the expansion control loop of each the described hydraulic cylinder between the alternate arm of described distributing arm support 1 joint is respectively O type three position four-way directional control valve.Like this, by the Median Function of this O type three position four-way directional control valve, the locking position that can easily each arm in above-mentioned other arm joint be saved.Certainly, with regard to apparatus for distributing, adopt O type three position four-way directional control valve substantially to realize the lock function of hydraulic cylinder, under the larger situation of oil pressure, for the sealing that prevents O type three position four-way directional control valve inadequate, can install further equalizing valve additional and realize lock function, these can be realized by various technical measures for the technician of Hydraulic Field, not repeat them here.
Can find out by foregoing description, key technology point of the present utility model is: the utility model mainly provides a kind of and has been different from the cloth operating process of conventionally form, for example, with regard to concrete mixer commonly used, at concrete mixer after telescopic outrigger launches and supports, after the first segment arm saves 2 expansion and moves to plumbness, by with hydraulic cylinder locking hinged between first segment arm joint 2 and the panoramic table, thereby first segment arm joint 2 is locked in vertical state, in this case, at first so that other arm joint launches successively, it is folding then can to control arbitrarily the stretching, extension of corresponding arm joint, to carry out the cloth operation.
Can be found out by upper description, the utility model advantage is: the utility model provides a kind of Promethean apparatus for distributing cloth method of operating, when cloth operates, at least so that first segment arm joint 2 is locked in vertical state, and after other arm joint launches, control it according to the cloth needs and stretch accordingly or folding movement, to carry out the cloth operation.That is to say, cloth operating process of the present utility model is under the prerequisite of guaranteeing maximum cloth height, by abandoning originally a part of cloth radius, thereby so that apparatus for distributing can reduce the support span of supporting leg, and by reasonable Arrangement support span reduce be worth for the intensity that reduces supporting leg 3 provides may, thereby can be so that the size reduction of telescopic outrigger, corresponding reinforcement reduces, effectively reached thus the purpose of apparatus for distributing loss of weight, and stability and safety when effectively having guaranteed the apparatus for distributing cloth.In general, (method of loss of weight mainly is to pass through material improvement with existing apparatus for distributing (for example concrete mixer), namely utilize carbon fiber to make jib or other parts difference, and the utility model becomes possibility by Promethean cloth operating process so that reduce design span and the intensity of underframe supporting leg, thereby be conducive to reduce the design weight of complete machine, this can be in a short time at apparatus for distributing, and especially the concrete mixer field makes a breakthrough, and can produce obvious beneficial effect.Apparatus for distributing of the present utility model is used for realizing described cloth operating process, so it has above-mentioned advantage equally.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment in reconcilable situation, can make up by any suitable mode.For fear of unnecessary repetition, the utility model is to the no longer separately explanation of various possible combinations.
In addition, also can carry out any combination between the various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (5)
1. apparatus for distributing, the distributing arm support of this apparatus for distributing (1) comprises hinged and can be folded relative to each other at least two joint arms joints of stretching, extension successively, the first segment arm joint (2) of this distributing arm support (1) is hinged on the supporting basis of described apparatus for distributing, it is characterized in that described apparatus for distributing also comprises for the locking device that described first segment arm joint (2) is locked in vertical position.
2. apparatus for distributing according to claim 1, it is characterized in that, be hinged with respectively hydraulic cylinder between the supporting basis of described first segment arm joint (2) and described apparatus for distributing and between the adjacent described arm joint, be provided with the reversal valve as flexible commutation control on the hydraulically extensible control loop of the described hydraulic cylinder between wherein said first segment arm joint (2) and the described supporting basis, this reversal valve is O type three position four-way directional control valve, and this O type three position four-way directional control valve doubles as described locking device.
3. apparatus for distributing according to claim 2 is characterized in that, the reversal valve between the alternate arm joint of described distributing arm support (1) on the expansion control loop of each hinged described hydraulic cylinder is respectively O type three position four-way directional control valve.
4. apparatus for distributing according to claim 1, it is characterized in that, described locking device is latch locking mechanism, this latch locking mechanism comprises latch, be fixed with supporting plate on the wherein said first segment arm joint (2), save (2) when being in vertical state at described first segment arm, pin hole on the described supporting plate can be aimed at the mating holes on the supporting basis of described apparatus for distributing, described latch can be inserted in described pin hole and the mating holes, thereby being saved (2), described first segment arm is locked in vertical state.
5. each described apparatus for distributing in 4 according to claim 1 is characterized in that described apparatus for distributing is concrete mixer, and the supporting basis of described apparatus for distributing is the panoramic table of described concrete mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220425647.5U CN202787997U (en) | 2012-08-24 | 2012-08-24 | Distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220425647.5U CN202787997U (en) | 2012-08-24 | 2012-08-24 | Distributing device |
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| Publication Number | Publication Date |
|---|---|
| CN202787997U true CN202787997U (en) | 2013-03-13 |
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ID=47815275
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220425647.5U Expired - Lifetime CN202787997U (en) | 2012-08-24 | 2012-08-24 | Distributing device |
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| Country | Link |
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| CN (1) | CN202787997U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817479A (en) * | 2012-08-24 | 2012-12-12 | 中联重科股份有限公司 | Cloth control method for cloth equipment and cloth equipment |
| CN114215362A (en) * | 2021-12-17 | 2022-03-22 | 徐州徐工施维英机械有限公司 | Automatic obstacle avoidance system and method for arm support and pump truck |
-
2012
- 2012-08-24 CN CN201220425647.5U patent/CN202787997U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817479A (en) * | 2012-08-24 | 2012-12-12 | 中联重科股份有限公司 | Cloth control method for cloth equipment and cloth equipment |
| CN102817479B (en) * | 2012-08-24 | 2013-11-20 | 中联重科股份有限公司 | Cloth control method for cloth equipment and cloth equipment |
| WO2014029179A1 (en) * | 2012-08-24 | 2014-02-27 | 中联重科股份有限公司 | Material distribution apparatus and material distribution control method therefor |
| CN114215362A (en) * | 2021-12-17 | 2022-03-22 | 徐州徐工施维英机械有限公司 | Automatic obstacle avoidance system and method for arm support and pump truck |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |