CN202829373U - Jib and engineering machinery - Google Patents
Jib and engineering machinery Download PDFInfo
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- CN202829373U CN202829373U CN 201220277319 CN201220277319U CN202829373U CN 202829373 U CN202829373 U CN 202829373U CN 201220277319 CN201220277319 CN 201220277319 CN 201220277319 U CN201220277319 U CN 201220277319U CN 202829373 U CN202829373 U CN 202829373U
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Abstract
The utility model provides a jib which comprises a first jib, a second jib and a jib lubbing mechanism for folding and unfolding the second jib, further comprises a swing mechanism, a swing driving device and a positioning device. The swing mechanism is arranged on one end of the first jib, and one end of the second jib is connected with the swing mechanism; the swing driving device drives the swing mechanism to swing to enable the second jib to rotate around the swinging axis, and when the second jib is rotated to an angle, the positioning device can fix the swing mechanism to enable the first jib and the second jib to maintain the angle relation. The utility model further discloses an engineering machinery which comprises the jib. The technical scheme of the jib can eliminate the unbalance loading between the first jib and the second jib during work and improve the stability of the whole vehicle. Besides, the structure of the first jib and the second jib is unrestricted, flexible and convenient, and has a wide range of application.
Description
Technical field
The utility model relates to engineering machinery field, in particular to a kind of jib and with the construction machinery and equipment of this jib.
Background technology
Along with rapid economic development, the quantity of skyscraper is more and more, and is highly also more and more higher, thereby require the operating altitude of aloft work mechanical equipment higher.Because of the length of single-unit jib shorter, in order to reach higher operating altitude, existing aloft work mechanical equipment generally adopts the jib form of " jib+No. two jib " or " principal arm+auxiliary ", one arm (principal arm) generally adopts the more piece jib, two arms (auxiliary) adopt more piece jib or single-unit jib, adopt suitable connection structure between one arm (principal arm) and two arms (auxiliary), to satisfy the job requirement of two arms (auxiliary).
In the correlation technique, usually adopt bridge construction to be connected between one arm (principal arm) of aloft work mechanical equipment and two arms (auxiliary), when i.e. two arms (auxiliary) withdrawal and work, all be positioned at the side of an arm (principal arm), both centers of gravity do not overlap in longitudinal plane (being vertical guide), cause the car load unbalance loading, affect the stability of car load.
The utility model content
The purpose of this utility model is, a kind of jib is provided, between the first jib and the second jib, be provided with swing type mechanism by adopting, when being drawn in, described the second jib is positioned at the side of described the first jib, described the second jib is when work, swing type mechanism with the rotation of described the second jib to described the first jib or directly over, the center of gravity that reaches described the second jib overlaps in longitudinal plane with the center of gravity of described the first jib, make the described jib can unbalance loading in when work, improved the stability of car load, and applied range, the structure of described the first jib and described the second jib is unrestricted, can adopt flexible form, folded form or flexible, folding mixed form.
In view of this, the utility model provides a kind of jib, comprises the first jib, the second jib and realizes the deployable and folding luffing mechanism of described the second jib, also comprises swing type mechanism, device for revolving and driving and registration device; Described swing type mechanism is installed in an end of described the first jib, and an end of described the second jib is connected with described swing type mechanism; Drive the revolution of described swing type mechanism by described device for revolving and driving, described the second jib is rotated around the rotation axis of described swing type mechanism, and after described the second jib turns to an angle, by the fixing described swing type mechanism of described registration device, described the first jib and described the second jib are remained on this angular relationship.
Adopt technique scheme, by between an arm and two arms, being provided with swing type mechanism, having solved and adopted bridging to connect form in the correlation technique to have the unbalance loading problem, improved the stability of car load.
In technique scheme, preferably, described swing type mechanism comprises: turntable, revolution are supported; Described registration device comprises: locating dowel pin and knock hole; Described revolution is supported and is comprised revolution inner ring, revolution outer ring, and described revolution inner ring and revolution outer ring can be rotated mutually; Described revolution inner ring is fixed on an end of the first jib, and described revolution outer ring is fixed on the described turntable, and an end of described turntable and described the second jib is hinged; End at described the first jib is provided with described locating dowel pin, is provided with described knock hole at described turntable, and described locating dowel pin can insert in the described knock hole, fixing described turntable; Described device for revolving and driving is installed in an end of the fixing described revolution inner ring of described the first jib.
Adopt technique scheme, when realizing revolution and fixing, simple in structure, easy for installation.
In above-mentioned arbitrary technical scheme, preferably, be provided with hinged seat on the described turntable, described the second jib is hinged on the described hinged seat; Be provided with the first knock hole and the second knock hole on the described turntable, the end of described the first jib is provided with the first locating dowel pin and the second locating dowel pin; Described the first locating dowel pin and the first knock hole are placed in parallel in the state of described the first jib side corresponding to described the second jib, and described the second locating dowel pin and the second knock hole remain on state in the same vertical guide corresponding to the center of gravity of the center of gravity of described the second jib and described the first jib.
Adopt technique scheme, simple in structure, easy for installation, and stable performance.
Preferably, also comprise position transduser or angular transducer, can detect the position of described the first knock hole and the second knock hole, and when described the first knock hole aligns with described the first locating dowel pin, when perhaps described the second knock hole aligns with described the second locating dowel pin, described position transduser or angular transducer send instruction, make described the first locating dowel pin, the action of the second locating dowel pin, the corresponding insertion in described the first knock hole, the second knock hole.
In this technical scheme, the rotation between the second jib and the first jib and fixing can automatically carrying out can certainly manually carry out.
In above-mentioned arbitrary technical scheme, preferably, described luffing mechanism is arranged between described swing type mechanism and described the second jib; Described luffing mechanism comprises first connecting rod, second connecting rod and amplitude oil cylinder; One end and the described turntable of described first connecting rod is hinged, an end of the other end and described amplitude oil cylinder is hinged, the other end of described amplitude oil cylinder is hinged on described the second jib, and middle part, the other end that an end of described second connecting rod is hinged on described first connecting rod are hinged on described the second jib.
Adopt the structure of this luffing mechanism, in the expansion and folder function that realize the second jib, simple in structure, reliable in action.
In above-mentioned arbitrary technical scheme, preferably, described actuating device comprises propulsion source and driving device, described propulsion source is motor or motor, described driving device comprises reductor and gear, described motor or motor drive described reductor and rotate, and described reductor rotates by described gear drive described revolution outer ring or revolution inner ring.
Adopt technique scheme, simple in structure, easy to operate.
Preferably, described the first jib is the body structure of hollow, and described motor or motor and described reductor are installed in described the first jib.
Adopt technique scheme, the transmission that drives swing type mechanism is high apart from weak point, efficient, and motor or motor and reductor are installed in the first jib, can save the space, is convenient to the layout of jib.
In above-mentioned arbitrary technical scheme, preferably, described swing type mechanism comprises turntable and revolution support; Described revolution is supported for thrust bearing, and the blowout patche of described thrust bearing is fixed on described the first jib, and the seat ring of described thrust bearing is fixed on the described turntable, and described the second jib is hinged on the described turntable.
Technique scheme is another kind of swing type mechanism, and adopts thrust bearing to support as revolution, and cost is low, interchangeability good.
In above-mentioned arbitrary technical scheme, preferably, described the first jib is that the single oil cylinder that socket-connects saves the telescopic jib that forms, and the single oil cylinder that described the second jib is hinged for head and the tail saves the foldable arm rack of composition.
Adopt technique scheme, described the first jib is that telescopic jib, described the second jib are foldable arm rack, can make that jib rotates flexibly, expansion is highly high, mechanical property good.
In sum, the jib that the utility model provides is by arranging swing type mechanism in described the first jib end, when making described the second jib work, its center of gravity overlaps in longitudinal plane with the center of gravity of described the first jib, can solve the problem that there is unbalance loading in relevant jib, improves whole vehicle stability; Also be provided with the luffing mechanism of described the second jib, described luffing mechanism can drive described the second jib and launch and fold, and applied range is flexible; And the structure of described the first jib and described the second jib is unrestricted, can adopt flexible form, folded form or flexible, folding mixed form.
On the other hand, the utility model also provides a kind of construction machinery and equipment, comprises the described jib of above-mentioned arbitrary technical scheme.Obviously, this project machinery has whole beneficial effects of jib described above, repeats no more.
Description of drawings
Fig. 1 is the integral structure scheme drawing according to an embodiment of jib described in the utility model;
Fig. 2 is according to jib local structure scheme drawing described in the utility model;
Fig. 3 is the scheme drawing according to jib revolving structure described in the utility model;
Fig. 4 is the front view according to the second jib rounding state in the jib described in the utility model;
Fig. 5 is the right elevation according to the second jib rounding state in the jib described in the utility model;
Fig. 6 is the front view according to the second jib mode of operation in the jib described in the utility model;
Fig. 7 is the right elevation according to the second jib mode of operation in the jib described in the utility model.
Wherein, the corresponding relation between Reference numeral and the component names is among Fig. 1 to Fig. 7:
The specific embodiment
In order more clearly to understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments the utility model is further described in detail.
A lot of details have been set forth in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from other modes described here and implement, and therefore, protection domain of the present utility model is not subjected to the restriction of following public specific embodiment.
Below in conjunction with drawings and Examples the utility model is described further.Need to prove that in the situation of not conflicting, the application's embodiment and the feature among the embodiment can make up mutually.
As shown in Figure 1 and Figure 2, the utility model provides a kind of jib, comprises the first jib 1 and the second jib 2, and realizes the deployable and folding luffing mechanism 5 of described the second jib 2, also comprises swing type mechanism 3, device for revolving and driving 4 and registration device; Described swing type mechanism 3 is installed in an end of described the first jib 1, and an end of described the second jib 2 is connected with described swing type mechanism 3; Drive the revolution of described swing type mechanism 3 by described device for revolving and driving, described the second jib 2 is rotated around the rotation axis of described swing type mechanism 3, and after described the second jib 2 turns to an angle, by the fixing described swing type mechanism 3 of described registration device, described the first jib 1 and 2 on described the second arm are remained on this angular relationship.
Adopt the technical scheme of the utility model above-described embodiment, by swing type mechanism 3, can as required the second jib 2 be rotated an angle with respect to the first jib 1, then be fixed by registration device, then when unbalance loading appears in jib, rotating the second jib 2, is that the center of the second jib 2 and the first jib 1 is in same vertical guide, solved in the correlation technique and to have adopted bridging to connect form to have the unbalance loading problem, improved the stability of car load; But also can be when jib is regained, the second jib 2 is placed in parallel in the side of the first jib 1, has reduced the height of whole jib.
Specifically, be exactly by the revolution of described swing type mechanism 3 and fixing of described registration device, can when described the second jib 2 launches, the center of gravity of described the second jib 2 and the center of gravity of described the first jib 1 be remained in the same vertical guide, how shown in Figure 7 such as Fig. 6.Fig. 6 and embodiment illustrated in fig. 7 in, be positioned at the below of the first jib 1 after described the second jib 2 rotation, realize that two jibs are centered close in the same vertical guide;
Perhaps, by the revolution of described swing type mechanism 3 and fixing of described registration device, can when described the second jib 2 folds, make described the second jib 2 be placed in parallel in described the first jib 1 side, as shown in Figure 4 and Figure 5.
One embodiment of described swing type mechanism, as shown in Figure 1 to Figure 3, described swing type mechanism 3 comprises: turntable 31 and revolution are supported; Described registration device comprises: locating dowel pin and knock hole; Described revolution is supported and is comprised revolution inner ring 32 and revolution outer ring 33, and described revolution inner ring 32 and revolution outer ring 33 can be rotated mutually; Described revolution inner ring 32 is fixed on an end of the first jib 1, and described revolution outer ring 33 is fixed on the described turntable 31, and described turntable 31 is hinged with an end of described the second jib 2; End at described the first jib 1 is provided with described locating dowel pin, is provided with described knock hole at described turntable 31, and described locating dowel pin can insert in the described knock hole, fixing described turntable 31; One end of the 1 fixing described revolution inner ring 32 of the first jib shown in described device for revolving and driving 4 is installed in.Adopt this technical scheme, when realizing that the second jib 2 can and be fixed with respect to 1 revolution of the first jib, simple in structure, easy for installation.
In the present embodiment, realize the registration device that swing type mechanism is fixing, employing be the knock hole that is separately positioned on turntable 31, and be arranged on that the locating dowel pin of the first jib 1 end realizes.In fact, the end that locating dowel pin also can be arranged on the turntable 31, knock hole also can be arranged on the first jib 1; Certainly, also can adopt other registration devices, such as fixture block and notch etc., it is intelligible that this is that those skilled in the art hold.
In addition, in the present embodiment, revolution outer ring 33 is fixed on the turntable 31, revolution inner ring 32 is fixed on the first jib 1 an end, the second jib 2 are hinged with turntable 31.It will be appreciated by those skilled in the art that revolution outer ring 33 also can be fixed on an end of the first jib 1, thereby the revolution inner ring is fixed on the turntable 31; Also revolution inner ring 32 can be fixed on the end a, end and the turntable 31 of the first jib 1 is hinged of the second jib 2, realize the second jib 2 with respect to the revolution of the first jib 1 and fix, thereby realize goal of the invention of the present utility model.
Further, as shown in Figure 1, in the present embodiment, be provided with hinged seat 34 on the described turntable 31, described the second jib 2 is hinged on the described hinged seat 34; On the described turntable 31, be provided with the first knock hole 71 and the second knock hole 72, the end of described the first jib 1 is provided with the first locating dowel pin 61 and the second locating dowel pin 62; Described the first locating dowel pin 61 and the first knock hole 71 are placed in parallel in the state of described the first jib 1 side corresponding to described the second jib 2, and described underground heat locating dowel pin 62 and the second knock hole 72 remain on state in the same vertical guide corresponding to the center of gravity of the center of gravity of described the second jib 2 and described the first jib 1.
Registration device described in the present embodiment is locating dowel pin and knock hole, but, those skilled in the art can understand, the device of realizing the location is a lot, for example positioning groove and locating piece, as long as can realize location and stationary device between two rotatable parts, all can realize goal of the invention of the present utility model.
Preferably, also comprise position transduser or angular transducer (not shown), can detect the position of described the first knock hole 71 and/or the second knock hole 72, and when described the first knock hole 71 aligns with described the first locating dowel pin 61, and/or, when described the second knock hole 72 aligns with described the second locating dowel pin 62, described position transduser or angular transducer send instruction, make described the first locating dowel pin 61,62 actions of the second locating dowel pin, the corresponding insertion in described the first knock hole 71, the second knock hole 72.
Like this, can make rotation and fixing can automatically carrying out between the second jib and the first jib, the alignment of knock hole and the insertion of locating dowel pin also can manually be carried out certainly.
As shown in Figure 1, in the present embodiment, shown in jib also be provided with and realize that described the second jib 2 launches and folding luffing mechanism 5.One embodiment of luffing mechanism, shown in Fig. 1, Fig. 5 to 7, described luffing mechanism 5 is arranged between described swing type mechanism 3 and described the second jib 2, comprises first connecting rod 51, second connecting rod 52 and amplitude oil cylinder 53; One end of described first connecting rod 51 and turntable are 31 hinged, an end of the other end and described amplitude oil cylinder 53 is hinged, the other end of described amplitude oil cylinder 53 is hinged on described the second jib 2, and middle part, the other end that an end of described second connecting rod 52 is hinged on described first connecting rod 51 are hinged on described the second jib 2.
This luffing mechanism is four-bar linkage, can realize expansion and the withdrawal of the second jib 2, and can rotate together along with the second jib 2, satisfies various mode of operation needs.
In the present embodiment, described actuating device 4 comprises motor as propulsion source, as reductor and the gear of driving device, described motor-driven reductor rotates, described reductor is by 33 rotations of the described revolution of described gear drive outer ring.Adopt this technical scheme to drive, simple in structure, easy to operate.Certainly, propulsion source described in the utility model can also be the various engine installations such as motor, oil cylinder, as long as can drive the swing type mechanism rotation.In the present embodiment, adopt actuating device to drive revolution outer ring 33 and realize revolution, certainly, also revolution inner ring 32 can be installed on the turntable 31, thereby realize revolution by driving revolution inner ring 32.
Preferably, preferably, described the first jib 1 is the body structure of hollow, and described motor or motor and described reductor are installed in described the first jib 1.Adopt this technical scheme, the transmission that drives swing type mechanism 3 is high apart from weak point, efficient, and motor or motor and reductor are installed in the first jib 1, can save the space, is convenient to the layout of jib.
The swing type mechanism of above-described embodiment, that the revolution that comprises revolution inner ring 32, revolution outer ring 33 is supported for example and describes, but those skilled in the art is to be understood that, adopt various turning gears all can realize the effect of swing type mechanism described in the utility model, for example, described swing type mechanism can comprise thrust bearing and turntable 31; And the blowout patche of described thrust bearing is fixed on described the first jib 1, the seat ring of described thrust bearing is fixed on the described turntable 31, described the second jib 2 is hinged on the described turntable 31, can realize equally that then the second jib 2 with respect to the rotation of the first jib 1, can realize goal of the invention of the present utility model equally.And adopting thrust bearing to support as revolution, cost is low, interchangeability good.
In addition, in the technical scheme described in the utility model, the structure of described the first jib 1 and described the second jib 2 is unrestricted, can adopt flexible form, folded form or flexible, folding mixed form.Preferably, the telescopic jib that described the first jib 1 forms for the single oil cylinder joint that socket-connects, the foldable arm rack that the single oil cylinder joint that described the second jib 2 is hinged for head and the tail forms.And described the first jib is that telescopic jib, described the second jib are foldable arm rack, can make that jib rotates flexibly, expansion is highly high, mechanical property good.
The second jib 2 of the described jib of above-described embodiment is realized launching and folding process, and namely 2 of the first jib 1 and the second jibs realize that the working process of revolution and location is:
Before 2 work of the second jib, first by amplitude oil cylinder 53, the interlock effect of first connecting rod 51 and second connecting rod 52, the second jib 2 is launched certain angle, then the first locating dowel pin 61 on the first jib 1 is withdrawed from from the first knock hole 71 of turntable 21, cancellation is to the positioning action of turntable 31, simultaneously, machine operation, drive the outer ring 32 of revolution support and the below that turntable 31 wraparounds turn center rotating to the first jib 1, position transduser detects the position of the second knock hole 72, at the second knock hole 72 with after the second locating dowel pin 62 aligns, the position signal of the second knock hole 72 is transferred into the actuating device (not shown) of the second locating dowel pin 62, the second locating dowel pin 62 is stretched out insert exactly in the second knock hole 72 of turntable 31, position by revolution support and the second locating dowel pin 62 between turntable 31 and the first jib, again by amplitude oil cylinder 53, the interlock effect of first connecting rod 51 and second connecting rod 52 all is expanded to mode of operation with the second jib 2.When then the second jib 2 is worked, be positioned at the below of the first jib 1, its center of gravity overlaps in longitudinal plane with the center of gravity of the first jib, has avoided the jib unbalance loading, has improved whole vehicle stability.
After the second jib 2 is finished using; amplitude oil cylinder 53; first connecting rod 51 and second connecting rod 52 interlock effects; can first the second jib 2 be regained certain angle; but not exclusively regain; then the second locating dowel pin 62 is withdrawed from from the second knock hole 72 of turntable 31; the motor effect; drive outer ring 33 and turntable 31 past revolutions that revolution is supported; be back to the side of the first jib 1 by track before; at this moment; position transduser detects the position of the first knock hole 71; at the first knock hole 71 with after the first locating dowel pin 61 aligns; the position signal of the first knock hole 71 is transferred into the actuating device (not shown) of the first locating dowel pin 61; the first locating dowel pin 61 is stretched out insert exactly in the first knock hole 71 of turntable 31; position by revolution support and the first locating dowel pin 61 between turntable 31 and the first jib 1, the second jib 2 is drawn in fully get back to initial position again, be placed in parallel in the side of the first jib.So far, the second jib 2 is finished an overall process of launching and folding.
In sum, the jib that the utility model provides is by arranging swing type mechanism in described the first jib end, when making described the second jib work, its center of gravity overlaps in longitudinal plane with the center of gravity of described the first jib, can solve the problem that there is unbalance loading in relevant jib, improves whole vehicle stability; By the luffing mechanism that arranges, can drive the expansion of described the second jib and folding, applied range, flexible; And the structure of described the first jib and described the second jib is unrestricted, can adopt flexible form, folded form or flexible, folding mixed form.
Another kind of embodiment of the present utility model can change the hand of rotation of revolution outer ring 33, and turntable 31 and the rotation of the second jib 2 to the top of the first jib 1, can be reached the described effect of above-described embodiment equally.
The embodiment of above-mentioned jib is applied to construction machinery and equipment, such as being used for the construction machinery and equipments such as elevating fire truck, pump truck, hoisting crane, namely obtains the embodiment of construction machinery and equipment described in the utility model.Have whole beneficial effects of above-mentioned jib embodiment, repeat no more.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a jib comprises the first jib (1) and the second jib (2) and realizes the luffing mechanism (5) that described the second jib (2) is deployable and folding, it is characterized in that,
Also comprise swing type mechanism (3), device for revolving and driving (4) and registration device;
Described swing type mechanism (3) is installed in an end of described the first jib (1), and an end of described the second jib (2) is connected with described swing type mechanism (3);
Described device for revolving and driving (4) drives described swing type mechanism (3), described the second jib (2) is rotated around the rotation axis of described swing type mechanism (3), and after described the second jib (2) turns to an angle, by the fixing described swing type mechanism (3) of described registration device, described the first jib (1) and described the second jib (2) are remained on this angular relationship.
2. jib according to claim 1 is characterized in that,
Described swing type mechanism comprises: turntable (31) and revolution are supported;
Described registration device comprises: locating dowel pin and knock hole;
Described revolution is supported and is comprised revolution inner ring (32) and revolution outer ring (33), and described revolution inner ring (32) and revolution outer ring (33) can be rotated mutually;
Described revolution inner ring (32) is fixed on an end of the first jib (1), and described revolution outer ring (33) is fixed on the described turntable (31), and described turntable (31) is hinged with an end of described the second jib (2);
End at described the first jib (1) is provided with described locating dowel pin, is provided with described knock hole at described turntable (31), and described locating dowel pin can insert in the described knock hole, fixing described turntable (31);
Described device for revolving and driving (4) is installed in an end of the fixing described revolution inner ring (32) of described the first jib (1).
3. jib according to claim 2 is characterized in that,
Be provided with hinged seat (34) on the described turntable (31), described the second jib (2) is hinged on the described hinged seat (34);
Be provided with the first knock hole (71) and the second knock hole (72) on the described turntable (31), the end of described the first jib (1) is provided with the first locating dowel pin (61) and the second locating dowel pin (62);
Described the first locating dowel pin (61) and the first knock hole (71) are placed in parallel in the state of described the first jib (1) side corresponding to described the second jib (2), and described the second locating dowel pin (62) and the second knock hole (72) remain on state in the same vertical guide corresponding to the center of gravity of the center of gravity of described the second jib (2) and described the first jib (1).
4. jib according to claim 3 is characterized in that,
Also comprise position transduser or angular transducer, can detect the position of described the first knock hole (71) and/or the second knock hole (72), and at described the first knock hole (71) and described the first locating dowel pin (61) when aliging, perhaps described the second knock hole (72) and described the second locating dowel pin (62) are when aliging, described position transduser or angular transducer send instruction, make described the first locating dowel pin (61), the second locating dowel pin (62) action, the corresponding insertion in described the first knock hole (71), the second knock hole (72).
5. jib according to claim 2 is characterized in that,
Described luffing mechanism (5) is arranged between described swing type mechanism (3) and described the second jib (2);
Described luffing mechanism (5) comprises first connecting rod (51), second connecting rod (52) and amplitude oil cylinder (53);
One end of described first connecting rod (51) and described turntable (31) are hinged, an end of the other end and described amplitude oil cylinder (53) is hinged, the other end of described amplitude oil cylinder (53) is hinged on described the second jib (2), and middle part, the other end that an end of described second connecting rod (52) is hinged on described first connecting rod (51) are hinged on described the second jib (2).
6. each described jib in 5 according to claim 2 is characterized in that,
Described device for revolving and driving (4) comprises propulsion source and driving device;
Described propulsion source is motor or motor, and described driving device comprises reductor and gear;
Described motor or motor drive described reductor and rotate, and described reductor rotates by the described revolution of described gear drive outer ring (33) or revolution inner ring (32).
7. jib according to claim 6 is characterized in that,
Described the first jib (1) is the body structure of hollow, and described motor or motor and described reductor are installed in described the first jib (1).
8. jib according to claim 1 is characterized in that,
Described swing type mechanism comprises turntable (31) and revolution support;
Described revolution is supported for thrust bearing, and the blowout patche of described thrust bearing is fixed on described the first jib (1), and the seat ring of described thrust bearing is fixed on the described turntable (31), and described the second jib (2) is hinged on the described turntable (31).
9. each described jib in 5 according to claim 1 is characterized in that,
The telescopic jib that described the first jib (1) forms for the single oil cylinder joint that socket-connects, the foldable arm rack that the single oil cylinder joint that described the second jib (2) is hinged for head and the tail forms.
10. a construction machinery and equipment is characterized in that, includes such as each described jib in the claim 1 to 9.
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| CN 201220277319 CN202829373U (en) | 2012-06-12 | 2012-06-12 | Jib and engineering machinery |
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| CN 201220277319 CN202829373U (en) | 2012-06-12 | 2012-06-12 | Jib and engineering machinery |
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| CN102701087A (en) * | 2012-06-12 | 2012-10-03 | 北京市三一重机有限公司 | Arm frame and engineering machinery |
| CN103215941A (en) * | 2013-03-28 | 2013-07-24 | 三一重工股份有限公司 | Dynamic compactor convenient for expanding ramming energy |
| CN104370220A (en) * | 2014-10-18 | 2015-02-25 | 青岛中天斯壮科技有限公司 | Self-climbing maintenance robot for wind power generation tower |
| WO2017120348A1 (en) * | 2016-01-05 | 2017-07-13 | Pumpersock USA | Flexible safety sock system |
| CN109467016A (en) * | 2018-12-29 | 2019-03-15 | 徐州重型机械有限公司 | Crane |
| CN109707168A (en) * | 2017-10-26 | 2019-05-03 | 德国施维英有限公司 | Hollow two point form bar |
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2012
- 2012-06-12 CN CN 201220277319 patent/CN202829373U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701087A (en) * | 2012-06-12 | 2012-10-03 | 北京市三一重机有限公司 | Arm frame and engineering machinery |
| CN103215941A (en) * | 2013-03-28 | 2013-07-24 | 三一重工股份有限公司 | Dynamic compactor convenient for expanding ramming energy |
| CN103215941B (en) * | 2013-03-28 | 2016-04-06 | 三一重工股份有限公司 | A kind of being convenient to expands the dynamic compaction machinery ramming energy |
| CN104370220A (en) * | 2014-10-18 | 2015-02-25 | 青岛中天斯壮科技有限公司 | Self-climbing maintenance robot for wind power generation tower |
| WO2017120348A1 (en) * | 2016-01-05 | 2017-07-13 | Pumpersock USA | Flexible safety sock system |
| CN109707168A (en) * | 2017-10-26 | 2019-05-03 | 德国施维英有限公司 | Hollow two point form bar |
| CN109467016A (en) * | 2018-12-29 | 2019-03-15 | 徐州重型机械有限公司 | Crane |
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