CN202671073U - Rope row-type telescopic arm mechanism and crane with the same - Google Patents
Rope row-type telescopic arm mechanism and crane with the same Download PDFInfo
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- CN202671073U CN202671073U CN 201220268044 CN201220268044U CN202671073U CN 202671073 U CN202671073 U CN 202671073U CN 201220268044 CN201220268044 CN 201220268044 CN 201220268044 U CN201220268044 U CN 201220268044U CN 202671073 U CN202671073 U CN 202671073U
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Abstract
The utility model discloses a rope row-type telescopic arm mechanism comprising a plurality of telescopic arms which are nested in sequence and can extend and retract relatively to each other. Partial telescopic arms are driven to extend and retract through telescopic oil cylinders, and the rest telescopic arms are all driven to extend and retract through a group of extension drag cables, a group of extension pulleys, a group of retraction drag cables and a group of retraction pulleys. One extension pulley and one retraction pulley are arranged at the tail part and the head part of one telescopic arm respectively; two ends of the corresponding retraction drag cable and extension drag cable are connected with a telescopic arm arranged in front of the telescopic arm and a telescopic arm arranged at the back of the telescopic arm respectively; and the retraction pulley is arranged on the inner circumferential wall of the tail part of the telescopic arm. According to the utility model, the retraction pulleys are arranged on the inner circumferential wall of the telescopic arms, and drag cable holders and other accessory parts of the retraction drag cables corresponding to the retraction pulleys are positioned on the inner circumferential walls of the tail parts, so as to save the space of the tail ends of the telescopic arms, and the rope row-type telescopic arm mechanism enables the structure to be compact, greatly increases the lap-joint length of the telescopic arms, increases the range of extension and retraction, and improves the hoisting performance of a crane arm. The utility model also provides a crane comprising the rope row-type telescopic arm mechanism.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of row's of rope formula Telescopic boom mechanism and have the hoisting crane of this mechanism.
Background technology
At present, the telescoping mechanism of telescopic crane boom mainly contains oil cylinder and adds rope row and two kinds of forms of single-cylinder bolt, and five joint arm crane arms generally adopt twin-tub to add rope row formula mechanism.
As shown in Figure 1, Fig. 1 is a kind of structure principle chart of typical rope row formula Telescopic boom mechanism.
The crane arm of this Telescopic boom mechanism comprises five joint arms, be respectively the first telescopic boom 1, the second telescopic boom 2, the 3rd telescopic boom 3, the 4th telescopic boom 4 and the 5th telescopic boom 5, wherein, the first telescopic boom 1 is basic arm, car body is not flexible relatively, and other telescopic booms are sequentially mutually nested and relatively flexible.Telescopic boom mechanism comprises that also the first telescopic oil cylinder 6 and the second telescopic oil cylinder 7, the first telescopic oil cylinders 6 are arranged between the first telescopic boom 1 and the second telescopic boom 2, and flexible second telescopic boom 2 that can drive of the first telescopic oil cylinder 6 stretches with respect to the first telescopic boom 1; The second telescopic oil cylinder 7 is arranged between the second telescopic boom 2 and the 3rd telescopic boom 3, and flexible the 3rd telescopic boom 3 that can drive of the second telescopic oil cylinder 7 stretches with respect to the second telescopic boom 2.
In addition, Telescopic boom mechanism comprises that also first stretches out pulley 8, first and stretch out drag-line 12, second and stretch out pulley 10, second and stretch out drag-line 14, first pulley 9, first drag-line 13, second pulley 11, second drag-line 15 of pulling back of pulling back of pulling back of pulling back.First stretches out the head that pulley 8 is fixed in the second telescopic oil cylinder 7 cylinder barrels, the first two ends of stretching out drag-line 12 connect respectively the arm tail of the second telescopic boom 2 and the 4th telescopic boom 4, when then the second telescopic oil cylinder 7 drivings the 3rd telescopic boom 3 stretches out with respect to the second telescopic boom 2, first stretches out drag-line 12 can spur the 4th telescopic boom 4, and it is stretched out with respect to the 3rd telescopic boom 3; And second stretch out the arm head place that pulley 10 is fixed in the 4th telescopic boom 4, the second two ends of stretching out drag-line 14 connect respectively the arm tail of the 3rd telescopic boom 3 and the 5th telescopic boom 5, when the 4th telescopic boom 4 stretches out with respect to the 3rd telescopic boom 3, second stretches out drag-line 14 can spur the 5th telescopic boom 5, and it is stretched out with respect to the 4th telescopic boom 4.The working process of drag-line and the pulley of pulling back of pulling back is just the opposite with the working process that stretches out drag-line, stretch out pulley, does not give unnecessary details herein.
According to the principle of work of above-mentioned rope row driver train as can be known, the arm head that stretches out the general close telescopic boom of pulley of rope row formula Telescopic boom mechanism, and the pulley of pulling back is arranged at the arm tail place of telescopic boom, and need to be arranged near the arm tail of last telescopic boom of the telescopic boom of being pulled back, such as first of the 4th telescopic boom 4 of the pulling back pulley 9 of pulling back, be located at the outer end of the afterbody of the 3rd telescopic boom 3, afterbody is the end wall of telescopic boom tail end herein, namely between the 3rd telescopic boom 3 afterbodys and the second telescopic boom 2 afterbodys, second of the 5th telescopic boom 5 of the pulling back pulley 11 of pulling back is located at the outer end of the 4th telescopic boom 4 afterbodys, namely between the 4th telescopic boom 4 afterbodys and the 3rd telescopic boom 3 afterbodys, as shown in Figure 2, Fig. 2 is the structural representation of pulley setting position of pulling back among Fig. 1.In addition, second stretches out drag-line 14 is generally single circulating type drag-line, and as shown in Figure 3, Fig. 3 is the second schematic diagram that arranges that stretches out drag-line 14 among Fig. 1, and this illustrates second and stretches out the structural representation that drag-line 14 is connected with the 5th telescopic boom 5 afterbodys.
There is following technical disadvantages in such scheme:
The first, the pulley of pulling back is arranged at the outer end of the afterbody of telescopic boom, namely between two telescopic booms of front and back, then pull back pulley and with it corresponding pull back drag-line and drag-line seat taken the arm tail than large space, reduced the telescopic boom lap of splice, reduced the lifting performance of crane arm;
The two ends of the second, stretching out drag-line in the such scheme connect respectively the afterbody of two telescopic booms, and the span of then stretching out drag-line is larger, and length is long, easily cause the lax problem such as telescopic boom cylindrical shell of patting of the flexible shake of telescopic boom, drag-line, and reliability is lower; And second when stretching out the single circulating type structure that drag-line 14 adopts, and safe reliability is lower;
Three, the limited space in the telescopic boom, for realizing the smooth work of the first telescopic oil cylinder 6 and the second telescopic oil cylinder 7, the cavity of the first telescopic oil cylinder 6 and the second telescopic oil cylinder 7 communicates, this kind oil circuit connection mode has reduced the flexible degree of controllability of work efficiency and telescopic boom so that two oil cylinders can influence each other.
In view of this, how to improve rope row formula Telescopic boom mechanism, increase the lap of splice of telescopic boom, thereby the lifting performance that improves crane arm is the technical matters that those skilled in the art need to be resolved hurrily.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of row's of rope formula Telescopic boom mechanism and has the hoisting crane of this mechanism, this rope row formula Telescopic boom mechanism has significantly increased the lap of splice of telescopic boom compared to the scheme of background technology, has improved the lifting performance of crane arm.
Rope that the utility model provides row formula Telescopic boom mechanism comprises sequentially nested and some telescopic booms that can relatively stretch, the part telescopic boom by telescopic oil cylinder relatively its last joint telescopic boom stretch; All the other each telescopic booms all can by one group stretch out drag-line and stretch out pulley, pull back drag-line and the pulley of pulling back realize stretching out and retracting; One group pull back pulley and stretch out pulley be located at respectively a telescopic boom arm tail and arm head, the corresponding drag-line of pulling back is connected to the last telescopic boom of this telescopic boom, a rear telescopic boom respectively with the two ends of stretching out drag-line, be used for retracting and stretching out a rear telescopic boom of this telescopic boom, and the described pulley of pulling back is located at the internal perisporium place of this telescopic boom afterbody.
Preferably, the number of described telescopic boom is five, is sequentially the first telescopic boom, the second telescopic boom, the 3rd telescopic boom, the 4th telescopic boom and the 5th telescopic boom, and described the first telescopic boom is basic arm;
Telescopic oil cylinder comprises the first telescopic oil cylinder and the second telescopic oil cylinder, and the second telescopic boom is flexible with respect to the first telescopic boom by the first telescopic oil cylinder, and the 3rd telescopic boom is flexible with respect to the second telescopic boom by the second telescopic oil cylinder;
The 4th telescopic boom and the 5th telescopic boom by the drag-line of pulling back, the pulley of pulling back, stretch out drag-line, stretch out pulley and realize pulling back and stretching out, the pulley of pulling back of described the 4th telescopic boom of pulling back is fixed in the internal perisporium place of described the 3rd telescopic boom afterbody; The pulley of pulling back of described the 5th telescopic boom of pulling back is fixed in the internal perisporium place of described the 4th telescopic boom afterbody.
Preferably, the cylinder barrel of described the first telescopic oil cylinder is fixed in described the second telescopic boom, and can be positioned at the 3rd telescopic boom, the 4th telescopic boom, the 5th telescopic boom; The cylinder barrel of described the second telescopic oil cylinder is fixed in described the 3rd telescopic boom, and can be positioned at the 4th telescopic boom, the 5th telescopic boom, stretch the corresponding head that pulley is located at described the second telescopic oil cylinder cylinder barrel that stretches out with the 4th telescopic boom, be around in this and stretch out the afterbody that a end that stretches out drag-line on the pulley connects described the 4th telescopic boom, the other end connects the head of described the first telescopic oil cylinder cylinder barrel.
Preferably, an end that stretches out drag-line that spurs described the 4th telescopic boom is connected in the internal perisporium place of the afterbody of described the 4th telescopic boom.
Preferably, an end that stretches out drag-line that spurs described the 4th telescopic boom is connected in the internal perisporium place of described the 4th telescopic boom afterbody below, and the pulley of pulling back of described the 5th telescopic boom of pulling back is fixed in the internal perisporium place of described the 4th telescopic boom two sides of tail.
Preferably, the stretch out pulley corresponding with described the 5th telescopic boom is fixed in described the 4th telescopic boom by fabricated section, and can be positioned at the 5th telescopic boom, be around in the head that this end that stretches out drag-line that stretches out pulley connects described the second telescopic oil cylinder cylinder barrel, the other end connects the afterbody of described the 5th telescopic boom.
Preferably, corresponding with described the 5th telescopic boom stretch out the top that pulley is installed on the 4th telescopic boom, be around in the afterbody that this end that stretches out drag-line that stretches out pulley connects the 3rd telescopic boom, the other end connects the afterbody of the 5th telescopic boom.
Preferably, the drag-line that stretches out that spurs described the 5th telescopic boom comprises at least two independent drag-lines.
Preferably, the upper two core pipes that are inserted with of the piston rod of described the first telescopic oil cylinder, the rod chamber of described the second telescopic oil cylinder and rodless cavity are communicated with respectively two core pipes of described the first telescopic oil cylinder, and two core pipes are communicated with respectively in-line and oil return line; Be provided with in addition two passages that are communicated with respectively its rod chamber and rodless cavity on the piston rod of described the first telescopic oil cylinder.
This utility model pulley of will pulling back is located at the internal perisporium place of telescopic boom.Telescopic boom is mutually nested, interior telescopic boom is the inside telescopic slide of telescopic boom outside, when telescopic boom stretches, the telescopic boom afterbody is as the bottom, with telescopic boom be mutually noninterfere, therefore, when the pulley of will pulling back is located at telescopic boom afterbody internal perisporium place, the Accessory Members such as drag-line seat of drag-line of pulling back accordingly all are positioned at afterbody internal perisporium place, no longer take the space of telescopic boom tail end, so that structural arrangement is more compact, the length that telescopic boom can overlap significantly lengthens, flexible amplitude becomes large, thereby has improved the lifting performance of crane arm.
The hoisting crane that the utility model provides has car body and the rope row formula Telescopic boom mechanism that is positioned on the car body, and described Telescopic boom mechanism is above-mentioned each described rope row formula Telescopic boom mechanism.Because above-mentioned rope row formula Telescopic boom mechanism has above-mentioned technique effect, the hoisting crane with this rope row formula Telescopic boom mechanism also has identical technique effect.
Description of drawings
Fig. 1 is a kind of structure principle chart of typical rope row formula Telescopic boom mechanism;
Fig. 2 is the structural representation of pulley setting position of pulling back among Fig. 1;
Fig. 3 is the second schematic diagram that arranges that stretches out drag-line among Fig. 1;
Fig. 4 provides the structure principle chart of a kind of specific embodiment of rope row's formula telescopic arm structure for the utility model;
Fig. 5 is the structural representation of the 3rd telescopic boom afterbody among Fig. 4;
Fig. 6 is the structural representation of the 4th telescopic boom afterbody among Fig. 4;
Fig. 7 first stretches out the structural representation that drag-line is connected in the cylinder barrel head of the first telescopic oil cylinder among Fig. 4;
Fig. 8 second stretches out the structural representation that drag-line is connected with the 5th telescopic boom afterbody among Fig. 4;
Fig. 9 is the structural representation of the first telescopic oil cylinder among Fig. 4;
Figure 10 is the hydraulic schematic diagram of the first telescopic oil cylinder and the second telescopic oil cylinder among Fig. 4.
Among Fig. 1-3:
1 first telescopic boom, 2 second telescopic booms, 3 the 3rd telescopic booms, 4 the 4th telescopic booms, 5 the 5th telescopic booms, 6 first telescopic oil cylinders, 7 second telescopic oil cylinders, 8 first stretch out pulley, 9 first pulley, 10 second of pulling back and stretch out pulley, 11 second pulley, 12 first of pulling back and stretch out drag-line, 13 first drag-line, 14 second of pulling back and stretch out drag-line, 15 second drag-line of pulling back;
Among Fig. 4-10:
21 first telescopic booms, 22 second telescopic booms, 23 the 3rd telescopic booms, 24 the 4th telescopic booms, 25 the 5th telescopic booms, 31 first telescopic oil cylinders, 32 second telescopic oil cylinders, 41 first pulleys of pulling back, 42 second pulleys of pulling back, 51 first stretch out pulley, 52 second stretch out pulley, 61 first drag-lines of pulling back, 62 second drag-lines of pulling back, 71 first stretch out drag-line, 72 second stretch out drag-line, 241 first drag-line seats, 311 first core pipes, 312 second core pipes, 313 cylinder barrels, 314 piston rods, 315 rod chamber passages, 316 rodless cavity passages, 317 second drag-line seats, 81 first control cock, 82 second control cock, the A point of connection, in-line P, oil return line T.
The specific embodiment
Core of the present utility model provides a kind of row's of rope formula Telescopic boom mechanism and has the hoisting crane of this mechanism, and this rope row formula Telescopic boom mechanism has significantly increased the lap of splice of telescopic boom compared to the scheme of background technology, has improved the lifting performance of crane arm.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 4-6, Fig. 4 provides the structure principle chart of a kind of specific embodiment of rope row's formula telescopic arm structure for the utility model; Fig. 5 is the structural representation of the 3rd telescopic boom afterbody among Fig. 4; Fig. 6 is the structural representation of the 4th telescopic boom afterbody among Fig. 4.
Rope row formula Telescopic boom mechanism, comprise sequentially nested and some telescopic booms that can relatively stretch, rope row formula Telescopic boom mechanism among this embodiment comprises five joint telescopic booms, be respectively the first telescopic boom 21, the second telescopic boom 22, the 3rd telescopic boom 23, the 4th telescopic boom 24 and the 5th telescopic boom 25, wherein the first telescopic boom 21 is basic arm.The second telescopic boom 22 is flexible flexible with respect to the first telescopic boom 21 by the first telescopic oil cylinder 31, and the 3rd telescopic boom 23 is flexible flexible with respect to the second telescopic boom 22 by the second telescopic oil cylinder 32.The 4th telescopic boom 24, the 5th telescopic boom 25 relatively flexible stretches out drag-line 71, first by first and stretches out pulley 51, second and stretch out drag-line 72, second and stretch out pulley 52, first drag-line 61, first pulley 41, second drag-line 62, second pulley 42 of pulling back of pulling back of pulling back of pulling back and realize, its specific works process can be described with reference to background technology, does not give unnecessary details herein.
In addition, among this embodiment, first pulley 41 and second pulley 42 of pulling back of pulling back is located at respectively the afterbody internal perisporium place of the 3rd telescopic boom 23 and the 4th telescopic boom 24, afterbody is the end wall of telescopic boom tail end herein.As shown in Figure 5 and Figure 6, the afterbody that each afterbody that saves telescopic boom all has certain thickness and telescopic boom is inside and outside perforation, therefore the telescopic boom afterbody has the internal perisporium of certain-length, the pulley of pulling back can be located on the internal perisporium of telescopic boom afterbody.Among Fig. 5, the cross-sectional plane upper end of the 3rd telescopic boom 23 afterbodys is trapezoidal, then the first pull back pulley 41 can be fitted and is located on the internal perisporium at the 3rd telescopic boom 23 afterbody upper side corners places, two first pulleys 41 of pulling back of operated by rotary motion are therefore be located at two first pulleys 41 of pulling back symmetrically two corners of the 3rd telescopic boom 23 afterbodys.Among Fig. 6, the cross-sectional plane of the 4th telescopic boom 24 afterbodys is square, and then second pulley 42 of pulling back can be located at the internal perisporium of the 4th telescopic boom 24 afterbody sides, arranges two second when pulling back pulley 42, can be located at symmetrically the internal perisporium place of both sides.
Telescopic boom is mutually nested, interior telescopic boom is the inside telescopic slide of telescopic boom outside, when telescopic boom stretches, the telescopic boom afterbody is as the bottom, with telescopic boom be mutually noninterfere, therefore, when the pulley of will pulling back was located at telescopic boom afterbody internal perisporium place, the Accessory Members such as drag-line seat of the drag-line of pulling back accordingly all were positioned at afterbody internal perisporium place, no longer take the space of telescopic boom tail end, as shown in Figure 4, between the second telescopic boom 22 and the 3rd telescopic boom 23, stop without the pulley of pulling back between the 3rd telescopic boom 23 and the 4th telescopic boom 24, so that structural arrangement is more compact, the length that telescopic boom can overlap significantly lengthens, flexible amplitude becomes large, thereby has improved the lifting performance of crane arm.Through experimental verification, under equal conditions, to compare with the Telescopic boom mechanism in the background technology, the Telescopic boom mechanism telescopic boom lap of splice can increase by 28% in the present embodiment, and the crane arm lifting performance improves 15%.
Pull back pulley 42 when being located at the internal perisporium place of the 4th telescopic boom 24 with second, connection the first the first drag-line seat 241 that stretches out drag-line 71 1 ends also can also be located at the internal perisporium place of the 4th telescopic boom 24, as shown in Figure 6, for avoiding interfering, the first drag-line seat 241 can be located at the internal perisporium place of below, and two second pulleys 42 of pulling back are located at the internal perisporium place of both sides.
The rope row formula telescoping mechanism of introducing in above-described embodiment describes as an example of five comparatively common joint telescopic booms example, and the flexible of first three joint telescopic boom realized by two telescopic oil cylinders, can expect on this basis, for improving according to the thinking of above-described embodiment equally more than the five joint arms or less than five Telescopic boom mechanisms that save arms, the above Telescopic boom mechanism of five joint arms can adopt plural telescopic oil cylinder or set up pulley and drag-line, be that the part telescopic boom is flexible by telescopic oil cylinder, all the other each telescopic booms all can stretch out drag-line and stretch out pulley by one group, the drag-line of pulling back is realized stretching out and retracting with the pulley of pulling back.Yet, no matter be the rope row formula Telescopic boom mechanism of what type, one group is stretched out pulley and the pulley of pulling back need be arranged at arm head and the arm tail of a telescopic boom, the corresponding drag-line of pulling back is connected to the last telescopic boom of this telescopic boom, a rear telescopic boom respectively with the two ends of stretching out drag-line, is used for retracting and stretching out a rear telescopic boom of this telescopic boom.As shown in Figure 4, on the 3rd telescopic boom 23 first pulley 41 and first of pulling back stretches out pulley 51, be used for pulling back and stretching and draw the 4th telescopic boom 24 (a rear telescopic boom of the 3rd telescopic boom 23), the first two ends of pulling back drag-line 61 are connected to respectively the second telescopic boom 22 (the last telescopic boom of the 3rd telescopic boom 23) and the 4th telescopic boom 24, the first two ends of stretching out drag-line 71 also are connected to respectively the second telescopic boom 22 and the 4th telescopic boom 24, Telescopic boom mechanism for this type, the internal perisporium place that pulley is located at the telescopic boom afterbody as long as will pull back can reach above-mentioned beneficial effect, exemplifies no longer one by one herein.
For above-described embodiment, the cylinder barrel 313 of the first telescopic oil cylinder 31 is fixed in the second telescopic boom 22, and can be positioned at the 3rd telescopic boom 23, the 4th telescopic boom 24, the 5th telescopic boom 25, namely the cylinder barrel 313 of the first telescopic oil cylinder 31 runs through rear three telescopic booms, and piston rod 314 is connected in the afterbody of the first telescopic boom 21.The cylinder barrel of the second telescopic oil cylinder 32 is fixed in the 3rd telescopic boom 23, and can be positioned at the 4th telescopic boom 24, the 5th telescopic boom 25, and namely its cylinder barrel runs through latter two telescopic boom, and its piston rod is connected in the afterbody of the second telescopic boom 22.Corresponding with the 4th telescopic boom 24 go out first stretch out the head that pulley 51 is located at the second telescopic oil cylinder 32 cylinder barrels, then first stretches out pulley 51 and is fixed on the second telescopic oil cylinder 32, namely fixing with the 3rd telescopic boom 23, being around in this first stretches out the two ends that first on the pulley 51 stretch out drag-line 71 and need to connect respectively the second telescopic boom 22 and the 4th telescopic boom 24, then first end that stretches out drag-line 71 can be connected in the head of the first telescopic oil cylinder 31 cylinder barrels 313, be connected to point of connection A among Fig. 4, the other end connects the 4th telescopic boom 24 afterbodys, as shown in Figure 7, Fig. 7 first stretches out the structural representation that drag-line is connected in the cylinder barrel head of the first telescopic oil cylinder among Fig. 4.The head of the first telescopic oil cylinder 31 cylinder barrels 313 is provided with the second drag-line seat 317, is used for the end that drag-line 71 is stretched out in installation first.First stretch out drag-line 71 according to this mode around rear, can reduce span, the length of drag-line, compare with the Telescopic boom mechanism in the background technology, the first length of stretching out drag-line 71 can reduce 40%, avoid the long and flexible shake of the crane arm that causes of drag-line, the lax phenomenon of patting the telescopic boom cylindrical shell of drag-line, improve functional reliability.
Can be expected by Fig. 7, with above-mentioned that first end that stretches out drag-line 71 is connected to the principle of the first telescopic oil cylinder 31 cylinder barrels 313 heads is identical, also second end that stretches out drag-line 72 can be connected to the head of the second telescopic oil cylinder 32 cylinder barrels herein.But this moment, second stretches out the prerequisite that pulley 52 can work is, need to establish fabricated section in addition so that second to stretch out pulley 52 fixing with respect to the 4th telescopic boom 24, and be positioned at the 4th telescopic boom 24 and the 5th telescopic boom 25.
Because first stretches out the head that pulley 51 is arranged at the second telescopic oil cylinder 32 cylinder barrels 313, and the existing structure of the second telescopic oil cylinder 32 namely is positioned at rear two telescopic booms, therefore the scheme that first end that stretches out drag-line 71 is connected to the first telescopic oil cylinder 31 has shortened the length of drag-line on the basis of not improving existing structure.Therefore, preferably, only first end that stretches out drag-line 71 is connected to the head of the first telescopic oil cylinder 31 cylinder barrels 313, and as shown in Figure 4, corresponding with the 5th telescopic boom 25 second stretches out the top that pulley 52 still is installed on the 4th telescopic boom 24, be around in second and stretch out the afterbody that a end that second of pulley 52 stretches out drag-line 72 connects the 3rd telescopic boom 23, the other end connects the afterbody of the 5th telescopic boom 25.
In addition, the drag-line of single circulating type in the background technology, the utility model embodiment can adopt double joint independence stayed structure, and as shown in Figure 8, Fig. 8 second stretches out the structural representation that drag-line is connected with the 5th telescopic boom afterbody among Fig. 4.Namely at drag-line connection location place the drag-line seat is set, two drag-lines arranged side by side can be installed, also can be the drag-line more than two, certainly, two drag-lines can satisfy strength demand, two drag-lines independently arrange, and have avoided single cable to lose efficacy and the safety misadventure that causes, have effectively promoted the safe reliability of crane arm operation.
Further, the telescopic oil cylinder structure in the various embodiments described above can be further improved.As shown in Figure 9 and Figure 10, Fig. 9 is the structural representation of the first telescopic oil cylinder among Fig. 4; Figure 10 is the hydraulic schematic diagram of the first telescopic oil cylinder and the second telescopic oil cylinder among Fig. 4.Piston rod 314 upper the first core pipe 311 and the second core pipes 312 of being inserted with of the first telescopic oil cylinder 31, one end of two core pipes is communicated with respectively in-line P and oil return line T, the other end of two core pipes is communicated with respectively rod chamber and the rodless cavity of the second telescopic oil cylinder 32, and namely the second telescopic oil cylinder 32 is by the oil-feed of core pipe and oil return in the first telescopic oil cylinder 31; Be provided with in addition the rod chamber passage 315 that is communicated with its rod chamber and the rodless cavity passage 316 that is communicated with rodless cavity on the piston rod 314 of the first telescopic oil cylinder 31, rodless cavity passage 316 and rod chamber passage 315 also can be communicated with in-line or oil return line.After adopting the first telescopic oil cylinder 31 of this kind structure, need not to make the cavity of two telescopic oil cylinders to communicate, can realize the oil inlet and oil return control of two telescopic oil cylinders, avoided influencing each other between two telescopic oil cylinders; And two telescopic oil cylinders can be controlled by control cock separately, as shown in figure 10, the break-make of two core pipes and in-line P, oil return line T is by 81 controls of the first control cock, the break-make of two passages and in-line P, oil return line T is by 82 controls of the second control cock, then the oil inlet and oil return of the first telescopic oil cylinder 31 and the second telescopic oil cylinder 32 all can independently be controlled by control cock, has realized independent control and simultaneously motion between two telescopic oil cylinders.
Except above-mentioned rope row formula Telescopic boom mechanism, the utility model also provides a kind of hoisting crane, the rope that has car body and be positioned on the car body is arranged the formula Telescopic boom mechanism, and described Telescopic boom mechanism is the described rope row of above-mentioned arbitrary embodiment formula Telescopic boom mechanism, and other structures can be understood with reference to prior art.Because above-mentioned rope row formula Telescopic boom mechanism has above-mentioned technique effect, the hoisting crane with this rope row formula Telescopic boom mechanism also has identical technique effect, repeats no more herein.
Above a kind of row's of rope formula Telescopic boom mechanism provided by the utility model and hoisting crane with this mechanism all are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. rope row formula Telescopic boom mechanism comprises sequentially nested and some telescopic booms that can relatively stretch, it is characterized in that, the part telescopic boom by telescopic oil cylinder relatively its last joint telescopic boom stretch; All the other each telescopic booms all can by one group stretch out drag-line and stretch out pulley, pull back drag-line and the pulley of pulling back realize stretching out and retracting; One group stretch out pulley and pull back pulley be located at respectively a telescopic boom arm head and arm tail, the corresponding drag-line of pulling back is connected to the last telescopic boom of this telescopic boom, a rear telescopic boom respectively with the two ends of stretching out drag-line, be used for retracting and stretching out a rear telescopic boom of this telescopic boom, and the described pulley of pulling back is located at the internal perisporium place of this telescopic boom afterbody.
2. rope according to claim 1 is arranged the formula Telescopic boom mechanism, it is characterized in that, the number of described telescopic boom is five, is sequentially the first telescopic boom, the second telescopic boom, the 3rd telescopic boom, the 4th telescopic boom and the 5th telescopic boom, and described the first telescopic boom is basic arm;
Telescopic oil cylinder comprises the first telescopic oil cylinder and the second telescopic oil cylinder, and the second telescopic boom is flexible with respect to the first telescopic boom by the first telescopic oil cylinder, and the 3rd telescopic boom is flexible with respect to the second telescopic boom by the second telescopic oil cylinder;
The 4th telescopic boom and the 5th telescopic boom by the drag-line of pulling back, the pulley of pulling back, stretch out drag-line, stretch out pulley and realize pulling back and stretching out, the pulley of pulling back of described the 4th telescopic boom of pulling back is fixed in the internal perisporium place of described the 3rd telescopic boom afterbody; The pulley of pulling back of described the 5th telescopic boom of pulling back is fixed in the internal perisporium place of described the 4th telescopic boom afterbody.
3. rope row formula Telescopic boom mechanism according to claim 2 is characterized in that, the cylinder barrel of described the first telescopic oil cylinder is fixed in described the second telescopic boom, and can be positioned at the 3rd telescopic boom, the 4th telescopic boom, the 5th telescopic boom; The cylinder barrel of described the second telescopic oil cylinder is fixed in described the 3rd telescopic boom, and can be positioned at the 4th telescopic boom, the 5th telescopic boom, corresponding with the 4th telescopic boom stretch out the head that pulley is located at described the second telescopic oil cylinder cylinder barrel, be around in this and stretch out the afterbody that a end that stretches out drag-line on the pulley connects described the 4th telescopic boom, the other end connects the head of described the first telescopic oil cylinder cylinder barrel.
4. rope row formula Telescopic boom mechanism according to claim 3 is characterized in that, an end that stretches out drag-line that spurs described the 4th telescopic boom is connected in the internal perisporium place of the afterbody of described the 4th telescopic boom.
5. rope according to claim 4 is arranged the formula Telescopic boom mechanism, it is characterized in that, an end that stretches out drag-line that spurs described the 4th telescopic boom is connected in the internal perisporium place of described the 4th telescopic boom afterbody below, and the pulley of pulling back of described the 5th telescopic boom of pulling back is fixed in the internal perisporium place of described the 4th telescopic boom two sides of tail.
6. rope according to claim 3 is arranged the formula Telescopic boom mechanism, it is characterized in that, the stretch out pulley corresponding with described the 5th telescopic boom is fixed in described the 4th telescopic boom by fabricated section, and can be positioned at the 5th telescopic boom, be around in the head that this end that stretches out drag-line that stretches out pulley connects described the second telescopic oil cylinder cylinder barrel, the other end connects the afterbody of described the 5th telescopic boom.
7. rope according to claim 3 is arranged the formula Telescopic boom mechanism, it is characterized in that, corresponding with described the 5th telescopic boom stretch out the top that pulley is installed on the 4th telescopic boom, be around in the afterbody that this end that stretches out drag-line that stretches out pulley connects the 3rd telescopic boom, the other end connects the afterbody of the 5th telescopic boom.
8. each described rope row formula Telescopic boom mechanism is characterized in that according to claim 2-7, and the drag-line that stretches out that spurs described the 5th telescopic boom comprises at least two independent drag-lines.
9. each described rope is arranged formula Telescopic boom mechanism according to claim 2-7, it is characterized in that, the upper two core pipes that are inserted with of the piston rod of described the first telescopic oil cylinder, the rod chamber of described the second telescopic oil cylinder and rodless cavity are communicated with respectively two core pipes of described the first telescopic oil cylinder, and two core pipes are communicated with respectively in-line and oil return line; Be provided with in addition two passages that are communicated with respectively its rod chamber and rodless cavity on the piston rod of described the first telescopic oil cylinder.
10. a hoisting crane has car body and the rope row formula Telescopic boom mechanism that is positioned on the car body, it is characterized in that, described Telescopic boom mechanism is each described rope row formula Telescopic boom mechanism of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268044 CN202671073U (en) | 2012-06-07 | 2012-06-07 | Rope row-type telescopic arm mechanism and crane with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268044 CN202671073U (en) | 2012-06-07 | 2012-06-07 | Rope row-type telescopic arm mechanism and crane with the same |
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| Publication Number | Publication Date |
|---|---|
| CN202671073U true CN202671073U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220268044 Expired - Fee Related CN202671073U (en) | 2012-06-07 | 2012-06-07 | Rope row-type telescopic arm mechanism and crane with the same |
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| Country | Link |
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| CN (1) | CN202671073U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689846A (en) * | 2012-06-07 | 2012-09-26 | 徐州重型机械有限公司 | Rope row type telescopic boom mechanism and crane provided with same |
| CN103171983A (en) * | 2013-03-27 | 2013-06-26 | 长治清华机械厂 | Three-stage synchronization telescoping mechanism of suspension arm of crane |
| CN108840258A (en) * | 2018-07-05 | 2018-11-20 | 湖南华钻智能科技有限公司 | It is a kind of to combine flexible arm system and engineering machinery |
| CN109749901A (en) * | 2019-03-28 | 2019-05-14 | 江苏金山啤酒原料有限公司 | Swimmer device is removed in a kind of immersion of malt |
-
2012
- 2012-06-07 CN CN 201220268044 patent/CN202671073U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689846A (en) * | 2012-06-07 | 2012-09-26 | 徐州重型机械有限公司 | Rope row type telescopic boom mechanism and crane provided with same |
| CN103171983A (en) * | 2013-03-27 | 2013-06-26 | 长治清华机械厂 | Three-stage synchronization telescoping mechanism of suspension arm of crane |
| CN108840258A (en) * | 2018-07-05 | 2018-11-20 | 湖南华钻智能科技有限公司 | It is a kind of to combine flexible arm system and engineering machinery |
| CN108840258B (en) * | 2018-07-05 | 2019-12-13 | 湖南华钻智能科技有限公司 | Combined telescopic arm system and engineering machinery |
| CN109749901A (en) * | 2019-03-28 | 2019-05-14 | 江苏金山啤酒原料有限公司 | Swimmer device is removed in a kind of immersion of malt |
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