CN2723414Y - Truck crane suspension arm - Google Patents
Truck crane suspension arm Download PDFInfo
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- CN2723414Y CN2723414Y CN 200420053386 CN200420053386U CN2723414Y CN 2723414 Y CN2723414 Y CN 2723414Y CN 200420053386 CN200420053386 CN 200420053386 CN 200420053386 U CN200420053386 U CN 200420053386U CN 2723414 Y CN2723414 Y CN 2723414Y
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- joint
- oil
- arm
- hydraulic fluid
- tail end
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Abstract
The utility model relates to a truck crane suspension arm, comprising four arms.Three oil cylinders are installed in four nodes arms; the head end in the second node arm slides, and then contacts the cylinder of the third node arm, and the tail end is connected with the tail section of the second node arm; the tail end of the fittings body of the tail end of the piston rod is connected with the tail end of the basic arm; the head end of the third node arm slides, and then contacts the oil cylinder of the fourth node arm, and the tail end is connected with the tail end of the third node arm; the tail end of the fittings body of the tail end of the piston rod is connected with the tail end of the second node arm; an oil pipe is installed between the fittings body and the second node arm oil cylinder; the head end of the fourth node arm oil cylinder slides, and then contacts the corresponding side inner wall of the fourth node arm, and the tail end is connected with the tail end of the fourth node arm; the tail end of the fittings body of the tail end of the piston rod is connected with the tail end of the third node arm; an oil pipe is installed between the fittings body and the third node arm oil cylinder; the oil channel with a rod cavity and the oil channel with a balanced valve and no rod cavity in the end are installed in the fittings body; the tail end oil port and the control oil port of the balanced valve are respectively communicated with the rod cavity and the cavity with no rod corresponding with the oil cylinder; the oil channel with rod cavity of the fittings body is communicated with the rod cavity corresponding with the oil cylinder by means of the oil pipe. The suspension arm can extend and shrink with load.
Description
Technical field
The utility model relates to a kind of parts that use on the car hosit, particularly relates to a kind of with carrying flexible car hosit arm.
Background technology
At present, the arm that uses on the car hosit generally has three arms or four arms.Modal is four arms, and the structure of this arm is: it have basic arm and with basic arm altogether two joint arms, three joint arms, the four joint arms of line of centers, two joint arms are inserted in the basic arm, three joint arms are inserted in the two joint arms, four joint arms are inserted in the three joint arms;
The two joint arm oil cylinders that have axis to parallel in the four joint arms with the basic arm line of centers, the afterbody of the tail end of this cylinder tube and two joint arms joins, head end is equipped with fixed pulley, the tail ends of the tail end of this fixed pulley of semi-girder steel rope pile warp and its two ends and basic arm and three joint arms join, the piston rod of this oil cylinder is hollow shape, the stem of piston rod has hydraulic fluid port, inner with oil pipe of axle mounting, tail end sets firmly fittings body, not connected rod chamber oil duct and rodless cavity oil duct are arranged in the fittings body, the stem of fittings body has and is used for the hydraulic fluid port that is communicated with fuel tank and communicates with its rod chamber oil duct, the afterbody of afterbody and basic arm joins, tail end is equipped with balance cock, the head end hydraulic fluid port that is used for being communicated with the tail end hydraulic fluid port of fuel tank and is used for being communicated with fittings body is arranged on the balance cock, control port, the tail end hydraulic fluid port of balance cock is through its head end hydraulic fluid port and by the rodless cavity oil duct in the fittings body, oil pipe in the piston rod communicates with the rodless cavity of two joint arm oil cylinders, and the control port of balance cock is by the rod chamber oil duct in the fittings body, the annular cavity of piston rod, the hydraulic fluid port of piston rod stem communicates with the rod chamber of two joint arm oil cylinders;
The head end of three joint arms is equipped with fixed pulley, and the tail end of another root semi-girder steel rope this fixed pulley of pile warp and its two ends and two joint arms and the tail end of four joint arms join; The tail end of two joint arms is equipped with fixed pulley, and the tail end of the head end of contract this fixed pulley of arm steel rope pile warp and its two ends and a basic arm and three joint arms joins; The tail ends of three joint arms are equipped with fixed pulley, and the contract head end and four tail ends that save arms of this fixed pulley of arm steel rope pile warp and its two ends and two joint arm cylinder tubes of another root join.
As seen, this arm relies on the coordinated of two joint arm oil cylinders and four steel ropes to drive two joint arms, three joint arms, four joint arms, so that they stretch.The shortcoming of this arm is: because the tensile strength of steel rope is less, therefore, steel rope just can't drive cooresponding certain joint arm when this arm has load, and promptly this arm can not be with to carry and stretch, and this uses to the user and brings inconvenience; In addition, the structure more complicated of this arm, installation and maintenance inconvenience.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides a kind of with carrying flexible car hosit arm.
For achieving the above object, the utility model provides a kind of car hosit arm, it has basic arm and is total to two of line of centers with basic arm saves arms, three joint arms, four joint arms, two joint arms are inserted in the basic arm, three joint arms are inserted in the two joint arms, four joint arms are inserted in the three joint arms, the two joint arm oil cylinders, three joint arm oil cylinders, the four joint arm oil cylinders that have axis to parallel with the basic arm line of centers in the four joint arms;
The cylinder barrel moving contact of the head end of two joint arm cylinder tubes and three joint arm oil cylinders, the afterbody of tail end and two joint arms joins, afterbody has hydraulic fluid port, the piston rod of this oil cylinder is hollow shape, the stem of piston rod has hydraulic fluid port, inner with oil pipe of axle mounting, tail end sets firmly fittings body, not connected rod chamber oil duct and rodless cavity oil duct are arranged in the fittings body, the stem of fittings body has and is used for the hydraulic fluid port that is communicated with fuel tank and communicates with its rod chamber oil duct, the afterbody of afterbody and basic arm joins, tail end is equipped with balance cock, the head end hydraulic fluid port that is used for being communicated with the tail end hydraulic fluid port of fuel tank and is used for being communicated with fittings body is arranged on the balance cock, control port, the tail end hydraulic fluid port of balance cock is through its head end hydraulic fluid port and by the rodless cavity oil duct in the fittings body, oil pipe in the piston rod communicates with the rodless cavity of two joint arm oil cylinders, and the control port of balance cock is by the rod chamber oil duct in the fittings body, the annular cavity of piston rod, the hydraulic fluid port of piston rod stem communicates with the rod chamber of two joint arm oil cylinders;
The cylinder barrel moving contact of the head end of three joint arm cylinder tubes and four joint arm oil cylinders, the afterbody of tail end and three joint arms joins, afterbody has hydraulic fluid port, the piston rod of this oil cylinder is hollow shape, the stem of piston rod has hydraulic fluid port, inner with oil pipe of axle mounting, tail end sets firmly fittings body, not connected rod chamber oil duct and rodless cavity oil duct are arranged in the fittings body, the stem of fittings body has the hydraulic fluid port that communicates with its rod chamber oil duct, be connected to oil pipe between the hydraulic fluid port of this hydraulic fluid port and two joint arm cylinder tube afterbodys, the afterbody of the afterbody of fittings body and two joint arms joins, tail end is equipped with balance cock, the head end hydraulic fluid port that is used for being communicated with the tail end hydraulic fluid port of fuel tank and is used for being communicated with fittings body is arranged on the balance cock, control port, the tail end hydraulic fluid port of balance cock is through its head end hydraulic fluid port and by the rodless cavity oil duct in the fittings body, oil pipe in the piston rod communicates with the rodless cavity of three joint arm oil cylinders, and the control port of balance cock is by the rod chamber oil duct in the fittings body, the annular cavity of piston rod, the hydraulic fluid port of piston rod stem communicates with the rod chamber of three joint arm oil cylinders;
The head end of four joint arm cylinder tubes and the respective side inwall moving contact of four joint arms, the afterbody of tail end and four joint arms joins, the piston rod of this oil cylinder is hollow shape, the stem of piston rod has hydraulic fluid port, inner with oil pipe of axle mounting, tail end sets firmly fittings body, not connected rod chamber oil duct and rodless cavity oil duct are arranged in the fittings body, the stem of fittings body has the hydraulic fluid port that communicates with its rod chamber oil duct, be connected to oil pipe between the hydraulic fluid port of this hydraulic fluid port and three joint arm cylinder tube afterbodys, the afterbody of the afterbody of fittings body and three joint arms joins, tail end is equipped with balance cock, the head end hydraulic fluid port that is used for being communicated with the tail end hydraulic fluid port of fuel tank and is used for being communicated with fittings body is arranged on the balance cock, control port, the tail end hydraulic fluid port of balance cock is through its head end hydraulic fluid port and by the rodless cavity oil duct in the fittings body, oil pipe in the piston rod communicates with the rodless cavity of four joint arm oil cylinders, and the control port of balance cock is by the rod chamber oil duct in the fittings body, the annular cavity of piston rod, the hydraulic fluid port of piston rod stem communicates with the rod chamber of four joint arm oil cylinders.
Adopt after the above structure, this arm just can rely on two joint arm oil cylinders, three joint arm oil cylinders, four joint arm oil cylinders to drive two joint arms, three joint arms, four joint arms, so that they stretch, because oil cylinder has enough power and tensile strength, therefore, oil cylinder also can drive cooresponding certain joint arm when this arm has load, and promptly this arm is in the process of lifting constant weight (in the lifting characteristic allowed band) object, this arm can be with to carry and stretch, and this uses to the user and brings great convenience.
As improvement of the present utility model, the cylinder barrel tail end of the cylinder barrel tail end of the cylinder barrel tail end of described two joint arm oil cylinders, three joint arm oil cylinders, four joint arm oil cylinders all joins with the afterbody of two joint arms, the afterbody of three joint arms, the afterbody of four joint arms respectively by a Shaft assembly, each Shaft assembly is made up of two horizontal semiaxis of coaxial line, the axis of semiaxis and the line of centers of basic arm are perpendicular, are parallel to each other between described three Shaft assemblies;
The afterbody of three fittings bodies of above-mentioned oil cylinder all joins with the afterbody of basic arm, the afterbody of two joint arms, the afterbody of three joint arms respectively by the horizontal bearing that axis parallels with the semiaxis axis;
Three cylinder barrel head ends of above-mentioned oil cylinder all are equipped with roller respectively by the roller carriage;
The roller carriage of two joint arm cylinder tube head ends is made up of the tailgate that abuts in this cylinder barrel head end, the vertical perpendicular horizontal adapter shaft of two side plates, axis and basic arm line of centers affixed and that front and back are symmetrical with tailgate, the extension of the stem of side plate for stretching towards three joint arm cylinder tubes, roller are contained on the adapter shaft and the two ends of adapter shaft and the tail end of two extensions join;
The roller carriage of three joint arm cylinder tube head ends is by the tailgate that abuts in this cylinder barrel head end, vertical affixed and two side plates that front and back are symmetrical with tailgate, form with the perpendicular horizontal adapter shaft of lateral surface afterbody vertical two orienting lugs, axis and the basic arm line of centers affixed and that front and back are symmetrical of two side plates respectively, the extension of the stem of side plate for stretching towards four joint arm cylinder tubes, roller are contained on the adapter shaft and the two ends of adapter shaft and the tail end of two extensions join;
The roller carriage of four joint arm cylinder tube head ends is by the tailgate that abuts in this cylinder barrel head end, vertical affixed and two side plates that front and back are symmetrical with tailgate, form with the perpendicular horizontal adapter shaft of lateral surface afterbody vertical two orienting lugs, axis and the basic arm line of centers affixed and that front and back are symmetrical of two side plates respectively, and roller is contained on the adapter shaft and the two ends of adapter shaft and the stem of two side plates are joined;
The rollers of four joint arm cylinder tube head ends are pressed on the respective side inwall of four joint arms, two orienting lugs save the arm free-running fits with four; The rollers of three joint arm cylinder tube head ends are pressed on the cylinder barrel of four joint arm oil cylinders, two extensions are across the both sides, front and back of four joint arm cylinder tubes and the head end of two extensions surpasses the axis of this cylinder barrel, two orienting lugs save the arm free-running fits with four; The rollers of two joint arm cylinder tube head ends are pressed on the cylinder barrel of three joint arm oil cylinders, two extensions across the both sides, front and back of three joint arm cylinder tubes and the head end of two extensions surpass the axis of this cylinder barrel.
As improvement of the present utility model, also be provided with adapter that axis parallels with the basic arm line of centers between the balance cock that the fittings body of described four joint arm oil cylinders and fittings body tail end are adorned and adorn the extension spray lance of coaxial oil pipe in reaching, the two ends of extension spray lance are vertical affixed with the head end of the tail end of fittings body and balance cock, the two ends of oil pipe are communicated with the tail end hydraulic fluid port of fittings body rodless cavity oil duct and the head end hydraulic fluid port of balance cock, the two ends of taking over are communicated with the tail end hydraulic fluid port of fittings body rod chamber oil duct and the control port of balance cock, the tail end hydraulic fluid port of balance cock is through its head end hydraulic fluid port and pass through oil pipe, rodless cavity oil duct in the fittings body, oil pipe in the piston rod communicates with the rodless cavity of four joint arm oil cylinders, the control port of balance cock is by taking over, rod chamber oil duct in the fittings body, the annular cavity of piston rod, the hydraulic fluid port of piston rod stem communicates with the rod chamber of four joint arm oil cylinders, takes over, oil pipe, the length of extension spray lance makes balance cock be in the afterbody of two joint arms.
As further improvement of the utility model, the tail end of described basic arm is equipped with oil pipe idler pulley assembly, oil pipe idler pulley assembly is on the extension line that the balance cock adorned on the balance cock adorned on the three joint arm oil cylinders and the four joint arm oil cylinders stretches towards the basic arm tail end substantially, oil pipe idler pulley assembly is by two bearings of tail end that vertically is installed in basic arm and front and back symmetry, two horizontal shafts that axis is perpendicular with the basic arm line of centers and parallel each other, four rolling is formed, two rollers and its two ends are housed on each horizontal shaft and two bearings join, form a guide channel between corresponding and two rollers in the position of two rollers of homonymy.
Description of drawings
Fig. 1 is the front view of the utility model preferred forms;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 1;
Fig. 4 is the B-B cutaway view of Fig. 1;
Fig. 5 is the C-C cutaway view of Fig. 1;
Fig. 6 is the D-D cutaway view of Fig. 1;
Fig. 7 is the E-E cutaway view of Fig. 1;
Fig. 8 is the F-F cutaway view of Fig. 1;
Fig. 9 is the G-G cutaway view of Fig. 1;
Figure 10 is the H-H cutaway view of Fig. 1;
Figure 11 is that the I of Fig. 1 is to view;
Figure 12 is the front view of two joint arm oil cylinders among Fig. 1;
Figure 13 is the left view of Figure 12 center tap body;
Figure 14 is the J-J cutaway view of Figure 13;
Figure 15 is the right elevation of Figure 12 center tap body;
Figure 16 is the K-K cutaway view of Figure 15;
Hydraulic schematic diagram when Figure 17 is the use of the utility model preferred forms.
The specific embodiment
Below in conjunction with accompanying drawing preferred forms of the present utility model is specifically described:
For the purpose of clearly demonstrating problem, make this car hosit arm be in horizontality among Fig. 1, Fig. 2, and the book size of Fig. 2 has carried out suitable amplification.
Referring to Fig. 1, Fig. 2, this car hosit arm have basic arm 25 and with basic arm 25 two joint arms 24, three joint arms 23, the four joint arms 22 of line of centers altogether, the section form of basic arm 25, two joint arms 24, three joint arms 23, four joint arms 22 is square, two joint arms 24 are inserted in the basic arm 25, three joint arms 23 are inserted in the two joint arms 24, four joint arms 22 are inserted in the three joint arms 23, the two joint arm oil cylinders, three joint arm oil cylinders, the four joint arm oil cylinders that have axis to parallel with the line of centers of basic arm 25 in the four joint arms 22.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, the head end of two joint arm cylinder tubes 1 by roller carriage 31 be equipped with circular groove shape nylon roller 30, tail end by a Shaft assembly and two afterbodys that save arms 24 join, the rear side of afterbody has hydraulic fluid port 1a.Described Shaft assembly is made up of two horizontal semiaxis 37 of coaxial line, and the line of centers of the axis of semiaxis 37 and basic arm 25 is perpendicular.Roller carriage 31 is made up of the tailgate 31b that abuts in cylinder barrel 1 head end, the perpendicular horizontal adapter shaft 31c of vertical two side plate 31a, axis and basic arm 25 line of centerss affixed and that front and back are symmetrical with tailgate 31b, the extension of the stem of side plate 31a for stretching towards three joint arm cylinder tubes 2, roller 30 are contained in that adapter shaft 31c goes up and the two ends of adapter shaft 31c and the tail end of two extensions join.Roller 30 is pressed on the cylinder barrel 2, the extension of two side plate 31a stems across the both sides, front and back of cylinder barrel 2 and the head end of two extensions surpass the axis of cylinder barrel 2.When cylinder barrel 2 was flexible, roller 30 can roll thereon, made cylinder barrel 1 head end and cylinder barrel 2 moving contacts.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Figure 10, Figure 12, Figure 13, Figure 14, Figure 15, Figure 16, the piston rod 5 of two joint arm oil cylinders is hollow shape, the stem of piston rod 5 has hydraulic fluid port 5c, inside sets firmly fittings body 6 with axle mounting oil pipe 5a, a tail end, and hydraulic fluid port 5c makes the annular cavity 5b between piston rod 5 inwalls and the oil pipe 5a outer wall communicate with the rod chambers 41 of two joint arm oil cylinders.Not connected rod chamber oil duct 61 and rodless cavity oil duct 62 are arranged in the fittings body 6, the front side of fittings body 6 stems has and is used for the hydraulic fluid port 611 that is communicated with fuel tank and communicates with its rod chamber oil duct 61, head end hydraulic fluid port 621 front and back of the head end hydraulic fluid port 612 of rod chamber oil duct 61 and rodless cavity oil duct 62 are on the head end face of fittings body 6 with arranging, the rodless cavity 40 of the two ends of oil pipe 5a and two joint arm oil cylinders, head end hydraulic fluid port 621 communicates, head end hydraulic fluid port 612 communicates with annular cavity 5b (failing among Figure 12 to illustrate), and tail end hydraulic fluid port 613 front and back of the tail end hydraulic fluid port 622 of rodless cavity oil duct 62 and rod chamber oil duct 61 are on the breech face of fittings body 6 with arranging.Horizontal bearing 32 that the afterbody of fittings body 6 parallels with semiaxis 37 axis by axis joins (having omitted bearing 32 and basic arm 25 among Figure 10) with the afterbody of basic arm 25, tail end is equipped with balance cock 7.The head end hydraulic fluid port 7b, the control port 7c that are used for being communicated with the tail end hydraulic fluid port 7a of fuel tank and are used for being communicated with fittings body 6 are arranged on the balance cock 7, and head end hydraulic fluid port 7b communicates with tail end hydraulic fluid port 622, control port 7c communicates with tail end hydraulic fluid port 613.Like this, the tail end hydraulic fluid port 7a of balance cock 7 communicates with the rodless cavities 40 of two joint arm oil cylinders through its head end hydraulic fluid port 7b and by the rodless cavity oil duct 62 in the fittings body 6, oil pipe 5a in the piston rod 5, and the control port 7c of balance cock 7 communicates with two rod chambers 41 that save the arm oil cylinders by the annular cavity 5b of the rod chamber oil duct 61 in the fittings body, piston rod 5, the hydraulic fluid port 5c of piston rod 5 stems.The setting of balance cock 7 can limit hydraulic fluid pressure and the flow thereof in the rodless cavity 40 that enters two joint arm oil cylinders, guarantees the stationarity when cylinder barrel 1 stretches.
Referring to Fig. 1, Fig. 2, Fig. 4, of particular note, the piston rod 15 (containing fittings body 14) of three joint arm oil cylinders is identical with the structure of the piston rod 5 (containing fittings body 6) of two joint arm oil cylinders, the cylinder barrel 2 of three joint arm oil cylinders is identical substantially with the structure of the cylinder barrel 1 of two joint arm oil cylinders, both differences only are: the rear side of cylinder barrel 1 afterbody of two joint arm oil cylinders has hydraulic fluid port 1a, and the front side of cylinder barrel 2 afterbodys of three joint arm oil cylinders has hydraulic fluid port 2a.The piston rod 19 (containing fittings body 17) of four joint arm oil cylinders is identical with the structure of the piston rod 5 (containing fittings body 6) of two joint arm oil cylinders, the cylinder barrel 3 of four joint arm oil cylinders is identical substantially with the structure of the cylinder barrel 1 of two joint arm oil cylinders, both differences only are: the rear side of cylinder barrel 1 afterbody of two joint arm oil cylinders has hydraulic fluid port 1a, and cylinder barrel 3 afterbodys of four joint arm oil cylinders are not offered hydraulic fluid port.The structure of the balance cock 7 that the balance cock 13 that the balance cock 12 that fittings body 14 tail ends are adorned, fittings body 17 tail ends are adorned, fittings body 6 tail ends are adorned is identical.Referring to Fig. 1, Fig. 2, Figure 10, the connection mode between balance cock 12 and the fittings body 14, between balance cock 7 and the fittings body 6 is identical.
Therefore, for the purpose of energy concise description problem, to balance cock 12 and fittings body 14 bonded assembly corresponding views, balance cock 13 and fittings body 17 bonded assembly corresponding views, the front view of three joint arm oil cylinders and four joint arm oil cylinders, the corresponding views of the fittings body 14 of piston rod 15 tail ends, the corresponding views of the fittings body 17 of piston rod 19 tail ends is omitted, like this, below in the structure of describing balance cock 12 and balance cock 13, the connection mode of balance cock 12 and fittings body 14, the connection mode of balance cock 13 and fittings body 17, the structure of three joint arm oil cylinders and four joint arm oil cylinders, the structure of fittings body 14 and fittings body 17, the connection mode of fittings body 14 and piston rod 15, during the connection mode of fittings body 17 and piston rod 19, the related components that can't illustrate in the accompanying drawing is just no longer added piece number.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 8, the head end of three joint arm cylinder tubes 2 by roller carriage 28 be equipped with circular groove shape nylon roller 27, tail end by a Shaft assembly and three afterbodys that save arms 23 join, the front side of afterbody has hydraulic fluid port 2a.Described Shaft assembly is made up of two horizontal semiaxis 34 of coaxial line, and the line of centers of the axis of semiaxis 34 and basic arm 25 is perpendicular.Be parallel to each other between that Shaft assembly of described Shaft assembly and two joint arm cylinder tubes, 1 tail end (coming down to be parallel to each other between semiaxis 34 and the semiaxis 37).Roller carriage 28 is by the tailgate 28b that abuts in cylinder barrel 2 head ends, vertical affixed and front and back are symmetrical two side plate 28a with tailgate 28b, form with the perpendicular horizontal adapter shaft 28c of lateral surface afterbody vertical two orienting lugs 29, axis and basic arm 25 line of centerss affixed and that front and back are symmetrical of two side plate 28a respectively, the extension of the stem of side plate 28a for stretching towards four joint arm cylinder tubes 3, roller 27 are contained in that adapter shaft 28c goes up and the two ends of adapter shaft 28c and the tail end of two extensions join.Roller 27 is pressed on the cylinder barrel 3, the extension of two side plate 28a stems across the both sides, front and back of cylinder barrel 3 and the head end of two extensions surpass the axis of cylinder barrel 3, two orienting lugs 29 and four joint arms, 22 free-running fits can not depart from the line of centers of four joint arms 22 to guarantee cylinder barrel 2 when flexible.When cylinder barrel 3 was flexible, roller 27 can roll thereon, made cylinder barrel 2 head ends and cylinder barrel 3 moving contacts.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, the piston rod 15 of three joint arm oil cylinders is hollow shape, the stem of piston rod 15 has hydraulic fluid port, inner sets firmly fittings body 14 with axle mounting oil pipe 15a, a tail end, and hydraulic fluid port makes the annular cavity 15b between the outer wall of the inwall of piston rod 15 and oil pipe 15a communicate with three rod chambers that save the arm oil cylinders.Not connected rod chamber oil duct 14a and rodless cavity oil duct 14b are arranged in the fittings body 14, there is the hydraulic fluid port 14a ' that communicates with its rod chamber oil duct 14a the front side of fittings body 14 stems, be connected to oil pipe 4 between the hydraulic fluid port 1a of hydraulic fluid port 14a ' and two joint arm cylinder tubes, 1 afterbody, for the purpose of energy brief description problem, omitted oil pipe 4 among Fig. 2, be on the head end face of fittings body 14 before and after the head end hydraulic fluid port of the head end hydraulic fluid port of rod chamber oil duct 14a and rodless cavity oil duct 14b with arranging, the rodless cavity of the two ends of oil pipe 15a and three joint arm oil cylinders, the head end hydraulic fluid port of rodless cavity oil duct 14b communicates, the head end hydraulic fluid port of rod chamber oil duct 14a communicates with annular cavity 15b, is on the breech face of fittings body 14 before and after the tail end hydraulic fluid port of the tail end hydraulic fluid port of rodless cavity oil duct 14b and rod chamber oil duct 14a with arranging.Horizontal bearing 33 that the afterbody of fittings body 14 parallels with semiaxis 37 axis by axis and the afterbodys of two joint arms 24 join, tail end is equipped with balance cock 12.The head end hydraulic fluid port, the control port that are used for being communicated with the tail end hydraulic fluid port of fuel tank and are used for being communicated with fittings body 14 are arranged on the balance cock 12, and the head end hydraulic fluid port communicates with the tail end hydraulic fluid port of rodless cavity oil duct 14b, control port communicates with the tail end hydraulic fluid port of rod chamber oil duct 14a.Like this, the tail end hydraulic fluid port of balance cock 12 communicates with the rodless cavities of three joint arm oil cylinders through its head end hydraulic fluid port and by the rodless cavity oil duct 14b in the fittings body 14, oil pipe 15a in the piston rod 15, and the control port of balance cock 12 communicates with three rod chambers that save the arm oil cylinders by the annular cavity 15b of the rod chamber oil duct 14a in the fittings body 14, piston rod 15, the hydraulic fluid port of piston rod 15 stems.The setting of balance cock 12 can limit hydraulic fluid pressure and the flow thereof in the rodless cavity that enters three joint arm oil cylinders, guarantees the stationarity when cylinder barrel 2 stretches.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 9, the head end of four joint arm cylinder tubes 3 by roller carriage 26 circular nylon roller 21 is housed, tail end joins by a Shaft assembly and four afterbodys that save arms 22.Described Shaft assembly is made up of two horizontal semiaxis 36 of coaxial line, and the line of centers of the axis of semiaxis 36 and basic arm 25 is perpendicular.Be parallel to each other between that Shaft assembly of described Shaft assembly and two joint arm cylinder tubes, 1 tail end (coming down to be parallel to each other between semiaxis 36 and the semiaxis 37).Roller carriage 26 is by the tailgate 26b that abuts in cylinder barrel 3 head ends, vertical affixed and two side plate 26a that front and back are symmetrical with tailgate 26b, form with the perpendicular horizontal adapter shaft 26c of lateral surface afterbody vertical two orienting lugs 20, axis and basic arm 25 line of centerss affixed and that front and back are symmetrical of two side plate 26a respectively, and roller 21 is contained in that adapter shaft 26c goes up and the two ends of adapter shaft 26c and the stem of two side plate 26a are joined.Roller 21 be pressed in four the joint arms 22 the respective side inwall on (since Fig. 1, Fig. 2 in make this car hosit arm be in horizontality, therefore roller 21 shown in two figure is to be pressed on the downside inwall of four joint arms 22), two orienting lugs 20 and four joint arms, 22 free-running fits can not depart from the line of centers of four joint arms 22 to guarantee cylinder barrel 3 when flexible.The setting of roller 21 makes the head end and four of cylinder barrel 3 save the respective side inwall moving contact of arms 22, has made things convenient for the installation and the maintenance of four joint arm oil cylinders.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, the piston rod 19 of four joint arm oil cylinders is hollow shape, the stem of piston rod 19 has hydraulic fluid port, inner sets firmly fittings body 17 with axle mounting oil pipe, a tail end, and hydraulic fluid port makes the annular cavity between the outer wall of the inwall of piston rod 19 and oil pipe communicate with four rod chambers that save the arm oil cylinders.Not connected rod chamber oil duct 17a and rodless cavity oil duct 17b are arranged in the fittings body 17, there is the hydraulic fluid port 17a ' that communicates with its rod chamber oil duct 17a the front side of fittings body 17 stems, be connected to oil pipe 18 between the hydraulic fluid port 2a of hydraulic fluid port 17a ' and three joint arm cylinder tubes, 2 afterbodys, for the purpose of energy brief description problem, omitted oil pipe 18 among Fig. 2, be on the head end face of fittings body 17 before and after the head end hydraulic fluid port of the head end hydraulic fluid port of rod chamber oil duct 17a and rodless cavity oil duct 17b with arranging, the rodless cavity of the two ends of institute's charge of oil pipe and four joint arm oil cylinders in the piston rod 19, the head end hydraulic fluid port of rodless cavity oil duct 17b communicates, the head end hydraulic fluid port of rod chamber oil duct 17a communicates with the annular cavity of piston rod 19, is on the breech face of fittings body 17 before and after the tail end hydraulic fluid port of the tail end hydraulic fluid port of rodless cavity oil duct 17b and rod chamber oil duct 17a with arranging.The horizontal bearing 35 that the afterbody of fittings body 17 parallels with semiaxis 37 axis by axis and the afterbodys of three joint arms 23 join, the adapter 39 that the tail end of fittings body 17 parallels with the line of centers of basic arm 25 by axis, in adorn coaxial oil pipe 38 extension spray lance 16 balance cock 13 is housed, and extension spray lance 16, take over 39 front and back and arrange.The head end hydraulic fluid port, the control port that are used for being communicated with the tail end hydraulic fluid port of fuel tank and are used for being communicated with fittings body 17 are arranged on the balance cock 13.The tail end of the two ends of extension spray lance 16 and fittings body 17 and the head end of balance cock 13 are vertical affixed, the two ends of oil pipe 38 are communicated with the tail end hydraulic fluid port of rodless cavity oil duct 17b and the head end hydraulic fluid port of balance cock 13, and the two ends of adapter 39 are communicated with the tail end hydraulic fluid port of rod chamber oil duct 17a and the control port of balance cock 13.Like this, the tail end hydraulic fluid port of balance cock 13 communicates with the rodless cavities of four joint arm oil cylinders through its head end hydraulic fluid port and by the rodless cavity oil duct 17b in the oil pipe in the extension spray lance 16 38, the fittings body 17, oil pipe in the piston rod 19, the control port of balance cock 13 by take over 39, the rod chamber oil duct 17a in the fittings body 17, the annular cavity of piston rod 19, the hydraulic fluid port of piston rod 19 stems communicate with four rod chambers that save the arm oil cylinders.The length of adapter 39, oil pipe 38, extension spray lance 16 makes balance cock 13 be in the afterbody of two joint arms 24, is convenient to keep in repair balance cock 13 like this.The setting of balance cock 13 can limit hydraulic fluid pressure and the flow thereof in the rodless cavity that enters four joint arm oil cylinders, guarantees the stationarity when cylinder barrel 3 stretches.
Referring to Fig. 1, Fig. 2, Figure 11, the tail end of basic arm 25 is equipped with oil pipe idler pulley assembly, oil pipe idler pulley assembly is on the extension line that the balance cock 13 adorned on the balance cock 12 adorned on the three joint arm oil cylinders and the four joint arm oil cylinders stretches towards basic arm 25 tail ends substantially, oil pipe idler pulley assembly is by two bearings 10 of tail end that vertically is installed in basic arm 25 and front and back symmetry, horizontal shaft 8 and horizontal shaft 11 that axis is perpendicular and parallel each other with basic arm 25 line of centerss, four circular groove shape rollers 9 are formed, two ends and two bearings 10 that two rollers 9 and each horizontal shaft respectively are housed on horizontal shaft 8 and the horizontal shaft 11 join, and form a guide channel 91 between corresponding and these two rollers 9 in the position of two rollers 9 of homonymy.When using this car hosit arm, need to install the oil pipe (Fig. 1, Fig. 2 do not draw) that is used for being communicated with fuel tank on the hydraulic fluid port 611 of fittings body 6 stems.An oil pipe (Fig. 1, Fig. 2 do not draw) that is used for being communicated with fuel tank all need be installed on the tail end hydraulic fluid port of balance cock 7, balance cock 12, balance cock 13, for described back two oil pipes (not drawing among Figure 11), can allow these two oil pipes pass two guide channels 91 in the oil pipe idler pulley assembly earlier, and then allowing these two oil pipes be communicated with the tail end hydraulic fluid port of balance cock 12 and the tail end hydraulic fluid port of balance cock 13, such two guide channels 91 just can play directional tagging to described two oil pipes respectively in the telescopic process of cylinder barrel 1, cylinder barrel 2.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Figure 10, Figure 12, the path that hydraulic oil enters in the rod chamber of the rod chamber of rod chambers 41, three joint arm oil cylinders of two joint arm oil cylinders and four joint arm oil cylinders is: the hydraulic oil from fuel tank enters among the annular cavity 5b of piston rod 5 through the hydraulic fluid port 611 of fittings body 6 stems, the head end hydraulic fluid port 612 of rod chamber oil duct 61, and enters in the rod chamber 41 of two joint arm oil cylinders through the hydraulic fluid port 5c of piston rod 5 stems; Then, hydraulic oil enters among the annular cavity 15b of piston rod 15 through the head end hydraulic fluid port of rod chamber oil duct 14a, the rod chamber oil duct 14a of the hydraulic fluid port 14a ' of the hydraulic fluid port 1a of cylinder barrel 1 afterbody rear side, oil pipe 4, fittings body 14 stems, fittings body 14, and the hydraulic fluid port through piston rod 15 stems enters in the rod chamber of three joint arm oil cylinders again; At last, hydraulic oil enters in the annular cavity of piston rod 19 through the hydraulic fluid port 2a of cylinder barrel 2 caudal anterior, oil pipe 18, the hydraulic fluid port 17a ' of fittings body 17 stems, the rod chamber oil duct 17a of fittings body 17, the head end hydraulic fluid port of rod chamber oil duct 17a, and the hydraulic fluid port through piston rod 19 stems enters in the rod chamber of four joint arm oil cylinders again.Certainly, the path that hydraulic oil flows out in the rod chamber of described three oil cylinders just access path with above-mentioned is opposite, repeats no more here.
Balance cock 7, balance cock 12, balance cock 13 equal buyables.
Referring to Figure 17, two joint arm oil cylinder and balance cocks 7, three joint arm oil cylinder and balance cocks 12, four joint arm oil cylinder and balance cocks 13, electromagnetism plug-in mounting combine valve 49, oil pipe reel 48, oil pipe reel 47, diverter 46, electromagnetic valve 45, change-over valve 44, oil pump 43, fuel tank 42, oil pipe 4, oil pipe 18 and corresponding other oil pipe connect by diagramatic way, form the rod chamber oil circuit and the rodless cavity oil circuit of three oil cylinders, thereby the complete working oil path of forming this car hosit arm (for the purpose of energy brief description problem, has been omitted the basic arm 25 of this car hosit arm among Figure 17, two joint arms 24, three joint arms 23, four joint arm 22 and oil pipe idler pulley assemblies).Communicate by oil pipe 4 between the rod chamber 52 of the rod chamber 41 of two joint arm oil cylinders and three joint arm oil cylinders, communicate by oil pipe 18 between the rod chamber 50 of the rod chamber 52 of three joint arm oil cylinders and four joint arm oil cylinders.
Referring to Figure 17, electromagnetism plug-in mounting combine valve 49 can play the effect that the rodless cavity oil circuit and four that opens and closes three joint arm oil cylinders saves the rodless cavity oil circuit of arm oil cylinders; Diverter 46 guarantees that the hydraulic fluid flow rate that flows into simultaneously in described two oil cylinder rodless cavities is identical, and guarantees that the hydraulic fluid flow rate that flows out simultaneously from described two oil cylinder rodless cavities is also identical; In addition referring to Fig. 1, Fig. 2, Figure 11, oil pipe reel 48 can be to twining thereon and pass oil pipe (Fig. 1 that guide channel 91 is communicated with the tail end hydraulic fluid port of balance cock 12 of oil pipe idler pulley assembly, Fig. 2, do not draw among Figure 11) play the automatic deploying and retracting effect, oil pipe (Fig. 1 that oil pipe reel 47 can be communicated with the tail end hydraulic fluid port of balance cock 13 another guide channel 91 that twines thereon and pass oil pipe idler pulley assembly, Fig. 2, do not draw among Figure 11) play the automatic deploying and retracting effect, like this, when two cylinder barrels 1 that save the arm oil cylinders stretch flexible to drive two joint arms 24, the cylinder barrels 2 of three joint arm oil cylinders are flexible to drive three joint arms 23 when flexible, and described two oil pipes can be followed two joint arms 24 respectively, three joint arms 23 are flexible.
Referring to Figure 17, Fig. 1, Fig. 2, this car hosit arm can be realized following several action:
1, the cylinder barrel 1 of two joint arm oil cylinders is flexible separately, and it is flexible separately to drive two joint arms 24;
2, the cylinder barrel 2 of three joint arm oil cylinders stretches out separately, drives three joint arms 23 and stretches out separately;
3, the cylinder barrel 2 of three joint arm oil cylinders is withdrawn separately, drives three joint arms 23 and withdraws separately;
4, the cylinder barrel 3 of four joint arm oil cylinders stretches out separately, drives four joint arms 22 and stretches out separately;
5, the cylinder barrel 3 of four joint arm oil cylinders is withdrawn separately, drives four joint arms 22 and withdraws separately;
6, cylinder barrel 3 synchronization telescopes of the cylinder barrel 2 of three joint arm oil cylinders and four joint arm oil cylinders drive three joint arms 23 and four joint arms, 22 synchronization telescopes.
As seen, the cylinder barrel of three oil cylinders can be flexible in proper order, but also synchronization telescope carries out order and stretches or synchronization telescope thereby drive respective arms.Before the operation of exercises, change-over valve 44 all is in meta, and hydraulic oil can not pass in and out three oil cylinders, and three oil cylinders all are in off position.Working process with regard to exercises is described below respectively below:
1, the cylinder barrel 1 of two joint arm oil cylinders is flexible separately, and it is flexible separately to drive two joint arms 24:
Referring to Figure 17, Fig. 1, Fig. 2, connect the power supply of electromagnetic valve 45, allow electromagnet B switch on (electromagnet A cuts off the power supply simultaneously), make the spool of electromagnetic valve 45 be in right position.Close electromagnet C on the electromagnetism plug-in mounting combine valve 49 and the power supply of electromagnet D, electromagnetism plug-in mounting combine valve 49 is not worked, i.e. hydraulic oil impassabitity electromagnetism plug-in mounting combine valve 49.
When the spool of manipulation change-over valve 44 is in position, a left side, hydraulic oil in the fuel tank 42 enters in the rodless cavity 40 of two joint arm oil cylinders, hydraulic oil in the rod chamber 41 of this oil cylinder is flow back in the fuel tank 42, makes the cylinder barrel 1 of two joint arm oil cylinders stretch out separately, drives two joint arms 24 and stretches out separately.
When the spool of manipulation change-over valve 44 was in meta, the rodless cavities 40 of two joint arm oil cylinders were closed, and made that the cylinder barrel 1 of two joint arm oil cylinders is static, and two joint arms 24 are motionless.
When the spool of manipulation change-over valve 44 is in right, hydraulic oil in the fuel tank 42 enters in the rod chamber 41 of two joint arm oil cylinders, open the control port of balance cock 7 simultaneously, like this, hydraulic oil in the rodless cavity 40 of this oil cylinder is flow back in the fuel tank 42 by balance cock 7, make the cylinder barrel 1 of two joint arm oil cylinders withdraw separately, drive two joint arms 24 and withdraw separately.
2, the cylinder barrel 2 of three joint arm oil cylinders stretches out separately, drives three joint arms 23 and stretches out separately:
Referring to Figure 17, Fig. 1, Fig. 2, connect the power supply of electromagnetic valve 45, allow electromagnet A switch on (electromagnet B cuts off the power supply simultaneously), make the spool of electromagnetic valve 45 be in position, a left side, like this, the rodless cavities 40 of two joint arm oil cylinders are closed, and cylinder barrel 1 is static.Connect the power supply of the electromagnet C on the electromagnetism plug-in mounting combine valve 49, the oil circuit in electromagnetism plug-in mounting combine valve 49 left sides (i.e. the oil circuit that communicates with the rodless cavity 51 of four joint arm oil cylinders) is opened.
When the spool of manipulation change-over valve 44 is in position, a left side, hydraulic oil in the fuel tank 42 is divided into two-way after by diverter 46, originally desiring to enter road hydraulic oil in the four joint arm oil cylinder rodless cavities 51 directly flows back in the fuel tank 42 by electromagnetism plug-in mounting combine valve 49 and (can not enter because of described hydraulic oil in the rodless cavity 51 of four joint arm oil cylinders, the cylinder barrel 3 of four joint arm oil cylinders is static, four joint arms 22 are motionless), another road hydraulic oil enters in the rodless cavity 53 of three joint arm oil cylinders by balance cock 12, and the hydraulic oil in the rod chamber 52 of three joint arm oil cylinders is through oil pipe 4, the rod chamber 41 of two joint arm oil cylinders is flow back in the fuel tank 42, make the cylinder barrel 2 of three joint arm oil cylinders stretch out separately, drive three joint arms 23 and stretch out separately.
3, the cylinder barrel 2 of three joint arm oil cylinders is withdrawn separately, drives three joint arms 23 and withdraws separately:
Referring to Figure 17, Fig. 1, Fig. 2, connect the power supply of electromagnetic valve 45, allow electromagnet B switch on (electromagnet A cuts off the power supply simultaneously), make the spool of electromagnetic valve 45 be in right position.After the cylinder barrel 1 of two joint arm oil cylinders is withdrawn fully, connect the power supply of the electromagnet D on the electromagnetism plug-in mounting combine valve 49, the oil circuit on electromagnetism plug-in mounting combine valve 49 right sides (i.e. the oil circuit that communicates with the rodless cavity 53 of three joint arm oil cylinders) is opened.
When the spool of manipulation change-over valve 44 is in right, hydraulic oil in the fuel tank 42 enters in the rod chamber 52 of three joint arm oil cylinders by rod chamber 41, the oil pipe 4 of two joint arm oil cylinders, open the control port of balance cock 12 simultaneously, like this, hydraulic oil in the rodless cavity 53 of three joint arm oil cylinders is flow back in the fuel tank 42 by balance cock 12, electromagnetism plug-in mounting combine valve 49, make the cylinder barrel 2 of three joint arm oil cylinders withdraw separately, drive three joint arms 23 and withdraw separately.At this moment, two joint arms 24 and four joint arms 22 are motionless.
If the not withdrawal fully of the cylinder barrel 1 of two joint arm oil cylinders, in this operation, two joint arms 24 also will bounce back simultaneously.
4, the cylinder barrel 3 of four joint arm oil cylinders stretches out separately, drives four joint arms 22 and stretches out separately:
Referring to Figure 17, Fig. 1, Fig. 2, connect the power supply of electromagnetic valve 45, allow electromagnet A switch on (electromagnet B cuts off the power supply simultaneously), make the spool of electromagnetic valve 45 be in position, a left side, like this, the rodless cavities 40 of two joint arm oil cylinders are closed, and the cylinder barrel 1 of two joint arm oil cylinders is static.Connect the power supply of the electromagnet D on the electromagnetism plug-in mounting combine valve 49, the oil circuit on electromagnetism plug-in mounting combine valve 49 right sides (i.e. the oil circuit that communicates with the rodless cavity 53 of three joint arm oil cylinders) is opened.
When the spool of manipulation change-over valve 44 is in position, a left side, hydraulic oil in the fuel tank 42 is divided into two-way after by diverter 46, originally desiring to enter road hydraulic oil in the rodless cavity 53 of three joint arm oil cylinders directly flows back in the fuel tank 42 by electromagnetism plug-in mounting combine valve 49 and (can not enter because of hydraulic oil in the rodless cavity 53 of three joint arm oil cylinders, the cylinder barrel 2 of three joint arm oil cylinders is static, three joint arms 23 are motionless), another road hydraulic oil enters in the rodless cavity 51 of four joint arm oil cylinders by balance cock 13, and the hydraulic oil in the rod chamber 50 of four joint arm oil cylinders is through oil pipe 18, the rod chamber 52 of three joint arm oil cylinders, oil pipe 4, the rod chamber 41 of two joint arm oil cylinders is flow back in the fuel tank 42, make the cylinder barrel 3 of four joint arm oil cylinders stretch out separately, drive four joint arms 22 and stretch out separately.
5, the cylinder barrel 3 of four joint arm oil cylinders is withdrawn separately, drives four joint arms 22 and withdraws separately:
Referring to Figure 17, Fig. 1, Fig. 2, connect the power supply of electromagnetic valve 45, allow electromagnet B switch on (electromagnet A cuts off the power supply simultaneously), make the spool of electromagnetic valve 45 be in right position.After the cylinder barrel 1 of two joint arm oil cylinders is withdrawn fully, connect the power supply of the electromagnet C on the electromagnetism plug-in mounting combine valve 49, the oil circuit in electromagnetism plug-in mounting combine valve 49 left sides (i.e. the oil circuit that communicates with the rodless cavity 51 of four joint arm oil cylinders) is opened.
When the spool of manipulation change-over valve 44 is in right, hydraulic oil in the fuel tank 42 enters in the rod chamber 50 of four joint arm oil cylinders by rod chamber 41, oil pipe 4, three rod chamber 52, the oil pipes 18 that save the arm oil cylinders of two joint arm oil cylinders, open the control port of balance cock 13 simultaneously, like this, hydraulic oil in the rodless cavity 51 of four joint arm oil cylinders is flow back in the fuel tank 42 by balance cock 13, electromagnetism plug-in mounting combine valve 49, make the cylinder barrel 3 of four joint arm oil cylinders withdraw separately, drive four joint arms 22 and withdraw separately.At this moment, two joint arms 24 and three joint arms 23 are motionless.
If the not withdrawal fully of the cylinder barrel 1 of two joint arm oil cylinders, in this operation, two joint arms 24 also will bounce back simultaneously.
6, cylinder barrel 3 synchronization telescopes of the cylinder barrel 2 of three joint arm oil cylinders and four joint arm oil cylinders drive three joint arms 23 and four joint arms, 22 synchronization telescopes:
Referring to Figure 17, Fig. 1, Fig. 2, connect the power supply of electromagnetic valve 45, allow electromagnet A switch on (electromagnet B cuts off the power supply simultaneously), make the spool of electromagnetic valve 45 be in position, a left side, like this, the rodless cavities 40 of two joint arm oil cylinders are closed, and the cylinder barrel 1 of two joint arm oil cylinders is static.Close electromagnet C on the electromagnetism plug-in mounting combine valve 49 and the power supply of electromagnet D, electromagnetism plug-in mounting combine valve 49 is not worked, i.e. hydraulic oil impassabitity electromagnetism plug-in mounting combine valve 49.
When the spool of manipulation change-over valve 44 is in position, a left side, hydraulic oil in the fuel tank 42 is divided into two-way after by diverter 46, one road hydraulic oil enters in the rodless cavity 51 of four joint arm oil cylinders by balance cock 13, another road hydraulic oil enters in the rodless cavity 53 of three joint arm oil cylinders by balance cock 12, and the hydraulic oil in the rod chamber 50 of four joint arm oil cylinders enters in the rod chamber 52 of three joint arm oil cylinders through oil pipe 18, hydraulic oil in this hydraulic oil and the three joint arm cylinder rod chambers 52 converges and by oil pipe 4, the rod chamber 41 of two joint arm oil cylinders is flow back in the fuel tank 42, make the cylinder barrel 2 of three joint arm oil cylinders and the cylinder barrel 3 of four joint arm oil cylinders stretch out simultaneously, drive three joint arms 23 and four joint arms 22 stretch out simultaneously.
When the spool of handling change-over valve 44 was in meta, the rodless cavities 51 of the rodless cavity 53 of three joint arm oil cylinders and four joint arm oil cylinders were closed, and made that the cylinder barrel 3 of the cylinder barrels 2 of three joint arm oil cylinders and four joint arm oil cylinders is static, and three joint arms 23 and four joint arms 22 are motionless.
When the spool of manipulation change-over valve 44 is in right, hydraulic oil in the fuel tank 42 is through the rod chamber 41 of two joint arm oil cylinders, oil pipe 4 enters in the rod chamber 52 of three joint arm oil cylinders, enter in the rod chamber 50 of four joint arm oil cylinders through oil pipe 18 again, open the control port of balance cock 12 and the control port of balance cock 13 simultaneously, like this, hydraulic oil in the rodless cavity 53 of three joint arm oil cylinders is through balance cock 12, after hydraulic oil in the rodless cavity 51 of four joint arm oil cylinders converges through balance cock 13 and by diverter 46, again through electromagnetic valve 45, change-over valve 44 is flow back in the fuel tank 42, make the cylinder barrel 2 of three joint arm oil cylinders and the cylinder barrel 3 of four joint arm oil cylinders withdraw simultaneously, drive three joint arms 23 and four joint arms 22 are withdrawn simultaneously.
The setting of diverter 46, identical in the feasible inflow rodless cavity 53 with the flow of hydraulic oil in the rodless cavity 51, and make from rodless cavity 53 and rodless cavity 51 in the flow of outflow hydraulic oil also identical, like this, speed identical (synchronization telescope) when the cylinder barrel 2 of three joint arm oil cylinders is flexible simultaneously with the cylinder barrel 3 of four joint arm oil cylinders, thus drive three joint arms 23 and four joint arms, 22 synchronization telescopes.
Above-described only is preferred forms of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.
Such as: three arms (promptly the basic arm of line of centers, two joint arms, three save arms altogether) are arranged, the two joint arm oil cylinders, the three joint arm oil cylinders that have axis to parallel in the three joint arms in the arm with the basic arm line of centers; The head end of two joint arm cylinder tubes and three joint arm cylinder tube moving contacts, tail end and two joint arm afterbodys join, and the afterbody and the basic arm afterbody of piston rod tail end joint body join; The head end of three joint arm cylinder tubes and the respective side inwall moving contact of three joint arms, tail end and three joint arm afterbodys join, and the afterbody of piston rod tail end joint body and two joint arm afterbodys join, and between the afterbody of the stem of fittings body and two joint arm cylinder tubes oil pipe are arranged; There are rod chamber oil duct, rodless cavity oil duct and tail end that balance cock is housed in each fittings body, the tail end hydraulic fluid port of each balance cock, control port communicate with rodless cavity, the rod chamber of corresponding oil cylinder respectively, and oil pipe makes the rod chamber oil duct of fittings body and the rod chamber of two joint arm oil cylinders communicate.Like this, this arm just can rely on two joint arm oil cylinders, three joint arm oil cylinders to drive two joint arms, three joint arms, so that they stretch.
For another example: five arms (promptly the basic arm of line of centers, two joint arms, three joint arms, four joint arms, five save arms altogether) are arranged in the arm, and the two joint arm oil cylinders, three joint arm oil cylinders, the four joint arm oil cylinders, five that have axis to parallel with the basic arm line of centers in the five joint arms save the arm oil cylinders; The head end of two joint arm cylinder tubes and three joint arm cylinder tube moving contacts, tail end and two joint arm afterbodys join, and the afterbody and the basic arm afterbody of piston rod tail end joint body join; The head end of three joint arm cylinder tubes and four joint arm cylinder tube moving contacts, tail end and three joint arm afterbodys join, and the afterbody of piston rod tail end joint body and two joint arm afterbodys join, and between the afterbody of the stem of fittings body and two joint arm cylinder tubes oil pipe are arranged; The head end of four joint arm cylinder tubes and five joint arm cylinder tube moving contacts, tail end and four joint arm afterbodys join, and the afterbody of piston rod tail end joint body and three joint arm afterbodys join, and between the afterbody of the stem of fittings body and three joint arm cylinder tubes oil pipe are arranged; The head end of five joint arm cylinder tubes and the respective side inwall moving contact of five joint arms, tail end and five joint arm afterbodys join, and the afterbody of piston rod tail end joint body and four joint arm afterbodys join, and between the afterbody of the stem of fittings body and four joint arm cylinder tubes oil pipe are arranged; There are rod chamber oil duct, rodless cavity oil duct and tail end that balance cock is housed in each fittings body, the tail end hydraulic fluid port of each balance cock, control port communicate with rodless cavity, the rod chamber of corresponding oil cylinder respectively, and each oil pipe makes the rod chamber oil duct of fittings body and the rod chamber of corresponding oil cylinder communicate.Like this, this arm just can rely on two joint arm oil cylinders, three joint arm oil cylinders, four joint arm oil cylinders, five joint arm oil cylinders to drive two joint arms, three joint arms, four joint arms, five joint arms, so that they stretch.
In addition, oil pipe idler pulley assembly also can be made up of two perpendicular with the basic arm line of centers and parallel each other horizontal shafts of two bearings, the axis of tail end that vertically is installed in basic arm and front and back symmetry, two rollers, the two ends of each horizontal shaft and two bearings join, for that horizontal shaft that is in substantially on the extension line that the balance cock adorned on the four joint arm oil cylinders stretches towards the basic arm tail end, two rollers are mounted thereto, form a guide channel between another horizontal shaft and each roller.
Claims (4)
1, the car hosit arm, basic arm is arranged and be total to two of line of centers and save arms with basic arm, three joint arms, four joint arms, two joint arms are inserted in the basic arm, three joint arms are inserted in the two joint arms, four joint arms are inserted in the three joint arms, the two joint arm oil cylinders that have axis to parallel in the four joint arms with the basic arm line of centers, the afterbody of the cylinder barrel tail end of this oil cylinder and two joint arms joins, the piston rod of this oil cylinder is hollow shape, the stem of piston rod has hydraulic fluid port, inner with oil pipe of axle mounting, tail end sets firmly fittings body, not connected rod chamber oil duct and rodless cavity oil duct are arranged in the fittings body, the stem of fittings body has and is used for the hydraulic fluid port that is communicated with fuel tank and communicates with its rod chamber oil duct, the afterbody of afterbody and basic arm joins, tail end is equipped with balance cock, the head end hydraulic fluid port that is used for being communicated with the tail end hydraulic fluid port of fuel tank and is used for being communicated with fittings body is arranged on the balance cock, control port, the tail end hydraulic fluid port of balance cock is through its head end hydraulic fluid port and by the rodless cavity oil duct in the fittings body, oil pipe in the piston rod communicates with the rodless cavity of two joint arm oil cylinders, the control port of balance cock is by the rod chamber oil duct in the fittings body, the annular cavity of piston rod, the hydraulic fluid port of piston rod stem communicates with the rod chamber of two joint arm oil cylinders, it is characterized in that:
The three joint arm oil cylinders, the four joint arm oil cylinders that also have axis to parallel in the four joint arms with the basic arm line of centers;
Cylinder barrel moving contact, the afterbody of the head end of two joint arm cylinder tubes and three joint arm oil cylinders have hydraulic fluid port;
The cylinder barrel moving contact of the head end of three joint arm cylinder tubes and four joint arm oil cylinders, the afterbody of tail end and three joint arms joins, afterbody has hydraulic fluid port, the piston rod of this oil cylinder is hollow shape, the stem of piston rod has hydraulic fluid port, inner with oil pipe of axle mounting, tail end sets firmly fittings body, not connected rod chamber oil duct and rodless cavity oil duct are arranged in the fittings body, the stem of fittings body has the hydraulic fluid port that communicates with its rod chamber oil duct, be connected to oil pipe between the hydraulic fluid port of this hydraulic fluid port and two joint arm cylinder tube afterbodys, the afterbody of the afterbody of fittings body and two joint arms joins, tail end is equipped with balance cock, the head end hydraulic fluid port that is used for being communicated with the tail end hydraulic fluid port of fuel tank and is used for being communicated with fittings body is arranged on the balance cock, control port, the tail end hydraulic fluid port of balance cock is through its head end hydraulic fluid port and by the rodless cavity oil duct in the fittings body, oil pipe in the piston rod communicates with the rodless cavity of three joint arm oil cylinders, and the control port of balance cock is by the rod chamber oil duct in the fittings body, the annular cavity of piston rod, the hydraulic fluid port of piston rod stem communicates with the rod chamber of three joint arm oil cylinders;
The head end of four joint arm cylinder tubes and the respective side inwall moving contact of four joint arms, the afterbody of tail end and four joint arms joins, the piston rod of this oil cylinder is hollow shape, the stem of piston rod has hydraulic fluid port, inner with oil pipe of axle mounting, tail end sets firmly fittings body, not connected rod chamber oil duct and rodless cavity oil duct are arranged in the fittings body, the stem of fittings body has the hydraulic fluid port that communicates with its rod chamber oil duct, be connected to oil pipe between the hydraulic fluid port of this hydraulic fluid port and three joint arm cylinder tube afterbodys, the afterbody of the afterbody of fittings body and three joint arms joins, tail end is equipped with balance cock, the head end hydraulic fluid port that is used for being communicated with the tail end hydraulic fluid port of fuel tank and is used for being communicated with fittings body is arranged on the balance cock, control port, the tail end hydraulic fluid port of balance cock is through its head end hydraulic fluid port and by the rodless cavity oil duct in the fittings body, oil pipe in the piston rod communicates with the rodless cavity of four joint arm oil cylinders, and the control port of balance cock is by the rod chamber oil duct in the fittings body, the annular cavity of piston rod, the hydraulic fluid port of piston rod stem communicates with the rod chamber of four joint arm oil cylinders.
2, car hosit arm according to claim 1 is characterized in that:
The cylinder barrel tail end of the cylinder barrel tail end of the cylinder barrel tail end of two joint arm oil cylinders, three joint arm oil cylinders, four joint arm oil cylinders all joins with the afterbody of two joint arms, the afterbody of three joint arms, the afterbody of four joint arms respectively by a Shaft assembly, each Shaft assembly is made up of two horizontal semiaxis of coaxial line, the axis of semiaxis and the line of centers of basic arm are perpendicular, are parallel to each other between described three Shaft assemblies;
The afterbody of three fittings bodies of above-mentioned oil cylinder all joins with the afterbody of basic arm, the afterbody of two joint arms, the afterbody of three joint arms respectively by the horizontal bearing that axis parallels with the semiaxis axis;
Three cylinder barrel head ends of above-mentioned oil cylinder all are equipped with roller respectively by the roller carriage;
The roller carriage of two joint arm cylinder tube head ends is made up of the tailgate that abuts in this cylinder barrel head end, the vertical perpendicular horizontal adapter shaft of two side plates, axis and basic arm line of centers affixed and that front and back are symmetrical with tailgate, the extension of the stem of side plate for stretching towards three joint arm cylinder tubes, roller are contained on the adapter shaft and the two ends of adapter shaft and the tail end of two extensions join;
The roller carriage of three joint arm cylinder tube head ends is by the tailgate that abuts in this cylinder barrel head end, vertical affixed and two side plates that front and back are symmetrical with tailgate, form with the perpendicular horizontal adapter shaft of lateral surface afterbody vertical two orienting lugs, axis and the basic arm line of centers affixed and that front and back are symmetrical of two side plates respectively, the extension of the stem of side plate for stretching towards four joint arm cylinder tubes, roller are contained on the adapter shaft and the two ends of adapter shaft and the tail end of two extensions join;
The roller carriage of four joint arm cylinder tube head ends is by the tailgate that abuts in this cylinder barrel head end, vertical affixed and two side plates that front and back are symmetrical with tailgate, form with the perpendicular horizontal adapter shaft of lateral surface afterbody vertical two orienting lugs, axis and the basic arm line of centers affixed and that front and back are symmetrical of two side plates respectively, and roller is contained on the adapter shaft and the two ends of adapter shaft and the stem of two side plates are joined;
The rollers of four joint arm cylinder tube head ends are pressed on the respective side inwall of four joint arms, two orienting lugs save the arm free-running fits with four; The rollers of three joint arm cylinder tube head ends are pressed on the cylinder barrel of four joint arm oil cylinders, two extensions are across the both sides, front and back of four joint arm cylinder tubes and the head end of two extensions surpasses the axis of this cylinder barrel, two orienting lugs save the arm free-running fits with four; The rollers of two joint arm cylinder tube head ends are pressed on the cylinder barrel of three joint arm oil cylinders, two extensions across the both sides, front and back of three joint arm cylinder tubes and the head end of two extensions surpass the axis of this cylinder barrel.
3, car hosit arm according to claim 1 and 2, it is characterized in that: also be provided with the extension spray lance that coaxial oil pipe is adorned in adapter that axis parallels with the basic arm line of centers in reaching between the balance cock that the fittings body of four joint arm oil cylinders and fittings body tail end are adorned, the two ends of extension spray lance are vertical affixed with the head end of the tail end of fittings body and balance cock, the two ends of oil pipe are communicated with the tail end hydraulic fluid port of fittings body rodless cavity oil duct and the head end hydraulic fluid port of balance cock, the two ends of taking over are communicated with the tail end hydraulic fluid port of fittings body rod chamber oil duct and the control port of balance cock, the tail end hydraulic fluid port of balance cock is through its head end hydraulic fluid port and pass through oil pipe, rodless cavity oil duct in the fittings body, oil pipe in the piston rod communicates with the rodless cavity of four joint arm oil cylinders, the control port of balance cock is by taking over, rod chamber oil duct in the fittings body, the annular cavity of piston rod, the hydraulic fluid port of piston rod stem communicates with the rod chamber of four joint arm oil cylinders, takes over, oil pipe, the length of extension spray lance makes balance cock be in the afterbody of two joint arms.
4, according to any one described car hosit arm in the claim 1 to 3, it is characterized in that: the tail end of basic arm is equipped with oil pipe idler pulley assembly, oil pipe idler pulley assembly is on the extension line that the balance cock adorned on the balance cock adorned on the three joint arm oil cylinders and the four joint arm oil cylinders stretches towards the basic arm tail end substantially, oil pipe idler pulley assembly is by two bearings of tail end that vertically is installed in basic arm and front and back symmetry, two horizontal shafts that axis is perpendicular with the basic arm line of centers and parallel each other, four rolling is formed, two rollers and its two ends are housed on each horizontal shaft and two bearings join, form a guide channel between corresponding and two rollers in the position of two rollers of homonymy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420053386 CN2723414Y (en) | 2004-08-27 | 2004-08-27 | Truck crane suspension arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420053386 CN2723414Y (en) | 2004-08-27 | 2004-08-27 | Truck crane suspension arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723414Y true CN2723414Y (en) | 2005-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420053386 Expired - Fee Related CN2723414Y (en) | 2004-08-27 | 2004-08-27 | Truck crane suspension arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723414Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126682A (en) * | 2011-04-11 | 2011-07-20 | 徐州徐工随车起重机有限公司 | Single cylinder synchronous expansion and contraction device with multiple sets of inhaul cables for lorry-mounted crane |
| CN102134044A (en) * | 2010-12-20 | 2011-07-27 | 长治清华机械厂 | Suspension arm sequential stretching/retracting hydraulic system |
| CN102583173A (en) * | 2011-12-19 | 2012-07-18 | 徐州重型机械有限公司 | Suspension arm telescopic hydraulic control system and crane with same |
| CN102583174A (en) * | 2012-03-10 | 2012-07-18 | 安徽柳工起重机有限公司 | Crane boom |
| CN110980528A (en) * | 2019-11-19 | 2020-04-10 | 徐州重型机械有限公司 | Novel single-cylinder plug pin type telescopic system and control method |
| CN113682981A (en) * | 2021-09-09 | 2021-11-23 | 大洋泊车股份有限公司 | Flexible arm of platform fire engine ascends a height |
-
2004
- 2004-08-27 CN CN 200420053386 patent/CN2723414Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134044A (en) * | 2010-12-20 | 2011-07-27 | 长治清华机械厂 | Suspension arm sequential stretching/retracting hydraulic system |
| CN102126682A (en) * | 2011-04-11 | 2011-07-20 | 徐州徐工随车起重机有限公司 | Single cylinder synchronous expansion and contraction device with multiple sets of inhaul cables for lorry-mounted crane |
| CN102126682B (en) * | 2011-04-11 | 2012-12-26 | 徐州徐工随车起重机有限公司 | Single cylinder synchronous expansion and contraction device with multiple sets of inhaul cables for lorry-mounted crane |
| CN102583173A (en) * | 2011-12-19 | 2012-07-18 | 徐州重型机械有限公司 | Suspension arm telescopic hydraulic control system and crane with same |
| CN102583174A (en) * | 2012-03-10 | 2012-07-18 | 安徽柳工起重机有限公司 | Crane boom |
| CN110980528A (en) * | 2019-11-19 | 2020-04-10 | 徐州重型机械有限公司 | Novel single-cylinder plug pin type telescopic system and control method |
| CN113682981A (en) * | 2021-09-09 | 2021-11-23 | 大洋泊车股份有限公司 | Flexible arm of platform fire engine ascends a height |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI LIUGONG CRANE CO., LTD. Free format text: FORMER NAME: BENGBU CITY ZHENCHONGANLI ENGINEERING MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. 217, Daqing Road, Anhui, Bengbu Province, China: 233010 Patentee after: Anhui Liugong Crane Co., Ltd. Address before: No. 217, Daqing Road, Anhui, Bengbu Province, China: 233010 Patentee before: Zhengchong Anli Engineering Machinery Co., Ltd., Bengbu City |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050907 Termination date: 20130827 |