CN102937139B - Pivoting support, boom system and elevating fire truck - Google Patents
Pivoting support, boom system and elevating fire truck Download PDFInfo
- Publication number
- CN102937139B CN102937139B CN201210457518.9A CN201210457518A CN102937139B CN 102937139 B CN102937139 B CN 102937139B CN 201210457518 A CN201210457518 A CN 201210457518A CN 102937139 B CN102937139 B CN 102937139B
- Authority
- CN
- China
- Prior art keywords
- gear ring
- drive unit
- collar
- pivoting support
- roll piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
A pivoting support comprises a first lantern ring, a second lantern ring, a first gear ring, a second gear ring, a first circle of rolling members, a second circle of rolling members, a third circle of rolling members, a first driving device, a second driving device and a third driving device. The first gear ring and the second gear ring are arranged between the first lantern ring and the second lantern ring, the first lantern ring is combined with the first gear ring through the first circle of rolling members to form a first pair of rotative surface groups, the first gear ring is combined with the second gear ring through the second circle of rolling members to form a second pair of rotative surface groups, the second gear ring is combined with the second lantern ring through the third circle of rolling members to form a third pair of rotative surface groups, the second pair of rotative surface groups forms an inclined included angle with the first pair of rotative surface groups and the third pair of rotative surface groups, the first driving device is used for driving the first gear ring to rotate relative to the first lantern ring, the second driving device is used for driving the first gear ring to rotate relative to the second gear ring, and the third driving device is used for driving the second gear ring to rotate relative to the second lantern ring.
Description
Technical field
The present invention relates to technical field of engineering machinery, especially relate to boom system and the pivoting support thereof of the arm support type engineering machineries such as a kind of hoist, concrete mixer and the special-purpose vehicle such as high-altitude operation vehicle, elevating fire truck.
Background technique
In the engineering machinery (such as hoist, concrete mixer) that there is boom system current and special-purpose vehicle (such as high-altitude operation vehicle, elevating fire truck), all utilize the stretching, extension of boom system to expand working zone, generally utilize elevating ram to carry out lifting to jib, stretch to make whole jib, people or thing are transported to predetermined working zone, reach the object of its work.
In response to the regulation of national safety standard, jib before stretching, needs to guarantee that jib is in level.Such as, for elevating fire truck (aerial ladder truck, Elevating platform fire truck, water tower truck etc.), before enforcement rescue, extinguishing operation, according to NBS mandatory requirement, adjustment jib (aerial ladder) is needed to enter level, to ensure the safety of operation.Consider emergency, the particularity of rescue, fire extinguishing; vehicle often understands parking on the road surface with certain slope; then adjusted the state of vehicle by various mode, make jib (aerial ladder) adjustment enter level, launch rescue, extinguishing operation.
Elevating fire truck is all provided with pivoting support, and to realize the revolution of jib (aerial ladder), pivoting support, in order to realize special object, has a variety of form, as external toothing form, ring gear form etc.Elevating fire truck is generally all provided with four supporting legs, and realizes supporting by support oil cylinder.
Please refer to Fig. 1, Fig. 1 be existing elevating fire truck parking at the ground structural representation of the gradient, this elevating fire truck comprises working bucket 10 ', jib 20 ', elevating ram 30 ', turntable 40 ', pivoting support 50 ', vehicle frame 70 ', front leg strut oil cylinder 80 ' and rear support leg oil cylinder 90 '.When elevating fire truck parking is on acclive ground, level can be entered by the extending amount of support oil cylinder before and after adjustment to realize jib (aerial ladder) adjustment, launch rescue, extinguishing operation.
Current national standard specifies, the angle adjustable of elevating fire truck needs >=5 °; European norm specifies, the angle adjustable of elevating fire truck needs >=8 °; Namely elevating fire truck can leveling operation under parking position has the gradient situation of 5 ° (or 8 °).Generally for the stability ensureing to realize car load operation, the span (front and back span, left and right span) of supporting leg all designs very large (about 4M-6M not etc.), to ensure enough supporting planes, prevent from tumbling during vehicle operation, in order to realize can realizing leveling by adjustment support oil cylinder in large span situation, support oil cylinder generally needs to do quite long, and needs suitable increase cylinder diameter to ensure enough pressure bar stabilizations.
Generally speaking, there are the following problems to realize the scheme of leveling above by adjustment support oil cylinder:
1, support oil cylinder is long, overweight, and design and manufacture is difficult to realize;
2, leveling speed is slow, and support oil cylinder needs to ensure that certain kinematic accuracy is to ensure to adjust the accuracy of angle, cannot stretch out fast;
3, leveling precision is general, and owing to being four-point supporting (for statically indeterminate structure), and oil cylinder itself has certain elasticity (for fluid compression), causes needing when leveling to carry out a large amount of repetitive controls;
4, when supporting leg span is larger, and during the angle needing adjustment larger (as adjusted to 8 ° according to European norm), the very difficult realization of prior art (oil cylinder needs overlength, there is problems such as cannot installing).
Summary of the invention
Embodiments provide a kind of pivoting support, it can self-regulating angle, to realize having the engineering machinery of boom system and special-purpose vehicle when parking is on gradient ground, debugs flat to vehicle on carrying out easily.
The embodiment of the present invention provides a kind of pivoting support, comprise first collar and second collar, described pivoting support also comprises the first gear ring, second gear ring, first lap roll piece, second circle roll piece, 3rd circle roll piece, first drive unit, second drive unit and the 3rd drive unit, described first gear ring and described second gear ring are arranged between described first collar and described second collar, be combined by described first lap roll piece between described first collar with described first gear ring and form first pair of turning surface group, enclose roll piece by described second between described first gear ring with described second gear ring be combined and form second pair of turning surface group, enclose roll piece by the described 3rd between described second gear ring with described second collar be combined and form the 3rd pair of turning surface group, the relatively described first pair of turning surface group of described second pair of turning surface group and described 3rd pair of turning surface group are slanted angle, described first drive unit turns for driving the relatively described first set loopback of described first gear ring, described second drive unit is for driving the relatively described second gear ring revolution of described first gear ring, described 3rd drive unit is for driving relatively described second collar revolution of described second gear ring, the internal surface of described first gear ring is provided with the first driving gear ring in top, described first drives gear ring to be horizontally disposed with around the internal surface of described first gear ring, described first drive unit adopts gear drive, the gear and described first of described first drive unit drives gear ring to coordinate, the internal surface of described first gear ring is provided with the second driving gear ring in bottom, described second drives gear ring to be obliquely installed around the internal surface of described first gear ring, described second drive unit adopts gear drive, the gear and described second of described second drive unit drives gear ring to coordinate, the internal surface of described second gear ring is provided with the 3rd and drives gear ring in bottom, described 3rd drives gear ring to be horizontally disposed with around the internal surface of described second gear ring, described 3rd drive unit adopts gear drive, the gear of described 3rd drive unit drives gear ring to coordinate with the described 3rd.
Further, described first set ring set is located at the top peripheral of described first gear ring, described first lap roll piece is arranged between the internal surface of described first collar and the outer surface of described first gear ring, and described first lap roll piece is be horizontally disposed with around the periphery of described first gear ring.
Further, the top of described second gear ring is set in the periphery, bottom of described first gear ring, described second circle roll piece is arranged between the outer surface bottom the internal surface at described second gear ring top and described first gear ring, and described second circle roll piece is obliquely installed around the periphery of described first gear ring.
Further, described second collar is set in the periphery, bottom of described second gear ring, described 3rd circle roll piece is arranged between the internal surface of described second collar and the outer surface of described second gear ring, and described 3rd circle roll piece is be horizontally disposed with around the periphery of described second gear ring.
The embodiment of the present invention also provides a kind of boom system, comprise jib, elevating ram, turntable, vehicle frame, described jib is stretched oil cylinder by described act and is arranged on described turntable, described elevating fire truck also comprises above-mentioned pivoting support, and described pivoting support to be located between described turntable with described vehicle frame and to be connected with described vehicle frame pivotally by described turntable; First collar of described pivoting support is fixedly connected with described turntable, and second collar of described pivoting support is fixedly connected with described vehicle frame.
Further, the first drive unit of described pivoting support is fixed on described turntable, and the second drive unit of described pivoting support is fixed on described second gear ring, and the 3rd drive unit of described pivoting support is fixed on described vehicle frame.
The embodiment of the present invention also provides a kind of elevating fire truck, and comprise working bucket and above-mentioned boom system, described working bucket is arranged on the jib of described boom system.
The beneficial effect that the technological scheme that the embodiment of the present invention provides is brought is: the pivoting support that above-described embodiment provides, by relative for second pair of turning surface group other two opposites groups (i.e. first pair of turning surface group and the 3rd pair of turning surface group) are designed in slanted angle, can self-regulating angle, realizing turntable relative frame the angular adjustment of 0 ° to 8 °, realizing the leveling that vehicle fills without the need to the extending amount by adjusting front and back support oil cylinder.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that existing elevating fire truck parking is at the ground structural representation of the gradient;
Fig. 2 is that the elevating fire truck parking that provides of the embodiment of the present invention is at the ground structural representation of the gradient;
Fig. 3 is the sectional structure schematic diagram of the pivoting support that the embodiment of the present invention provides;
Fig. 4 is the graph of a relation between each plane of rotation and vector of the pivoting support that the embodiment of the present invention provides;
Fig. 5 is in the pivoting support that provides of the embodiment of the present invention, when P3 plane is around n4 Vector rotation, and the rotating locus figure of vector n 2;
Fig. 6 is in the pivoting support that provides of the embodiment of the present invention, and vector n 1 relative vector n6 realizes the modular concept reduced graph of angle change.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Please refer to Fig. 2, be a kind of elevating fire truck parking of providing of the embodiment of the present invention at the ground structural representation of the gradient, this elevating fire truck comprises working bucket 10, jib 20, elevating ram 30, turntable 40, pivoting support 60, vehicle frame 70, front leg strut oil cylinder 80 and rear support leg oil cylinder 90.
Working bucket 10 is arranged on the end of jib 20, for carrying and the personnel of transport, disaster relief instrument or goods and materials etc.Jib 20, also can be described as ladder, and it is stretched oil cylinder 30 by act and is arranged on turntable 40; Jib 20 can be telescopic arm support or truss-type cantilever crane.Act is stretched oil cylinder 30 and is connected jib 20 and turntable 40, is stretched by the oil cylinder act realizing jib 20 of stretching.Turntable 40 is arranged on can on the pivoting support 60 of self-regulating angle, drives whole upper dress (i.e. working bucket 10, jib 20, lift and stretch oil cylinder 30 and turntable 40) to turn round by rotary reducer.Front leg strut oil cylinder 80 and rear support leg oil cylinder 90 are fixed on vehicle frame 70, for the formation of support during car load operation.Vehicle frame 70, for connecting vehicle chassis and pivoting support 60, bears the power of whole upper dress and front leg strut oil cylinder 80, rear support leg oil cylinder 90.Pivoting support 60 to be located between turntable 40 with vehicle frame 70 and to be connected with vehicle frame 70 pivotally by turntable 40, and turntable 40 can be turned round by relative frame 70 under the support of pivoting support 60.
Usual elevating fire truck, when carrying out normal operation, needs the level ensureing upper dress, and when vehicle parking is on non-horizontal ground, what the embodiment of the present invention provided can the pivoting support 60 of self-regulating angle can realize debuging flat.
Please refer to Fig. 3, the sectional structure schematic diagram of the pivoting support 60 that Fig. 3 provides for the embodiment of the present invention, pivoting support 60 comprises the first collar 61a, the second collar 61b, the first gear ring 62, second gear ring 63, first lap roll piece 64, second circle roll piece 65, the 3rd circle roll piece 66, first drive unit 67, second drive unit 68 and the 3rd drive unit 69.
First collar 61a is fixedly connected with one of them in vehicle frame 70 with turntable 40, and in the present embodiment, the first collar 61a is fixedly connected with by such as bolt with the bottom of turntable 40; Second collar 61b and turntable 40 are fixedly connected with another in vehicle frame 70, and in the present embodiment, the second collar 61b is fixedly connected with by such as bolt with the top of vehicle frame 70.That is, the first collar 61a and the second collar 61b is axially oppositely arranged.
First gear ring 62 and the second gear ring 63 are axially set between the first collar 61a and the second collar 61b.
The internal surface of the first gear ring 62 is respectively equipped with the first driving gear ring 621 and second and drives gear ring 622 in top and bottom, wherein first drive gear ring 621 be horizontally disposed with around the internal surface of the first gear ring 62, and the second driving gear ring 622 is be obliquely installed around the internal surface of the first gear ring 62; First collar 61a is set in the top peripheral of the first gear ring 62, and arrange first lap roll piece 64 between the internal surface of the first collar 61a and the outer surface of the first gear ring 62, first lap roll piece 64 is horizontally disposed with around the periphery of the first gear ring 62.
The internal surface of the second gear ring 63 is provided with the 3rd and drives gear ring the 631, three to drive gear ring 631 to be horizontally disposed with around the internal surface of the second gear ring 63 in bottom; The top of the second gear ring 63 is set in the periphery, bottom of the first gear ring 62, arrange between the internal surface of the second gear ring 63 and the bottom outer surface of the first gear ring 62 second circle roll piece 65, second enclose roll piece 65 be obliquely installed around the periphery of the first gear ring 62 and tilt with the first gear ring 62 second drive gear ring 622 corresponding.Second collar 61b is set in the periphery, bottom of the second gear ring 63, arranges the 3rd and enclose roll piece 66 between the internal surface of the second collar 61b and the outer surface of the second gear ring 63, and the 3rd circle roll piece 66 is horizontally disposed with around the periphery of the second gear ring 63.
In the present embodiment, first lap roll piece 64, second encloses roll piece 65 and the 3rd circle roll piece 66 is ball, every a pair junction plane is arranged a circle ball.Certainly, each roll piece can also adopt other forms such as roller bearing, needle bearing or slide block etc. to substitute.
First drive unit 67 is fixed on turntable 40, for drive turntable 40 and the first collar 61a together relative first gear ring 62 turn round; Second drive unit 68 is fixed on the second gear ring 63, turns round for driving relative second gear ring 63 of the first gear ring 62; 3rd drive unit 69 is fixed on vehicle frame 70, turns round for driving relative second collar 61b of the second gear ring 63 and vehicle frame 70.In the present embodiment, first drive unit 67, second drive unit 68 and the 3rd drive unit 69 all adopt gear drive, adopt by the cogged structure of rotary reducer band, the gear of each drive unit respectively with the driving gear ring corresponding matching of the first gear ring 62 or the second gear ring 63 internal surface.When first drive unit 67 runs, its gear drives gear ring 621 to creep along first of the first gear ring 62 top, first drive unit 67 detours and moves in a circle on the first driving gear ring 621, drive turntable 40 to rotate together with the first collar 61a, thus realize the relative revolution between the first gear ring 62 with the first collar 61a.When second drive unit 68 runs, its gear drives gear ring 622 to coordinate with second bottom the first gear ring 62 and drives relative second gear ring 63 of the first gear ring 62 to turn round.When 3rd drive unit 69 runs, its gear drives gear ring 631 to coordinate with the 3rd bottom the second gear ring 63 and drives relative second collar 61b of the second gear ring 63 and vehicle frame 70 to turn round.Also be, in the present embodiment, first drive unit 67 operationally can detour and move in a circle, and the second drive unit 68 and the 3rd drive unit 69 position operationally immobilize, and the first drive unit 67 and the second drive unit 68, the 3rd drive unit 69 are different in this.
Incorporated by reference to the relation between each plane of rotation and vector showing pivoting support 60 with reference to Fig. 4, Fig. 4, wherein n1 is the vector that P1 plane crosses first lap roll piece 64 central axis; N2 is the vector that P2 plane crosses first lap roll piece 64 central axis; N3 is the vector that P3 plane crosses the second circle roll piece 65 central axis; N4 is the vector that P4 plane crosses the second circle roll piece 65 central axis; N5 is the vector that P5 plane crosses the 3rd circle roll piece 66 central axis; N6 is the vector that P6 plane crosses the 3rd circle roll piece 66 central axis.
P1 plane is the lower plane (or upper plane of the first collar 61a) of turntable 40, and its planar process vector is n1, is connected, and can realizes P1 plane around n2 Vector rotation by the first drive unit 67 by turntable 40 with jib 20.
P2 plane is the driving gear ring face at the first gear ring 62 top, and its planar process vector is n2, and the first drive unit 67 drives P1 plane to rotate around the gear ring of P2 plane.
P3 plane is the driving gear ring face bottom the first gear ring 62, and its planar process vector is n3, can realize P3 plane around n4 Vector rotation by the second drive unit 68; P3 plane and P2 plane are fixing being rigidly connected, because P2, P3 plane is jointly formed on the first gear ring 62, when P3 plane is around n4 Vector rotation, interlock are caused rotation and the deflection of n2 vector.As shown in Figure 5, when P3 plane is around n4 rotation alpha °, P3 drives P2 Plane Rotation, and the normal vector n2 of P2 will carry out according to rotating locus (the locus circle O in Fig. 5) position rotating, be inclined to n2 ' in figure, and it causes the inclination angle of P2 plane to be θ °.
P4 plane is the supporting surface of P3 plane, is the top ramped surface of the second gear ring 63, and its normal vector is that n4, n4 vector overlaps with n3 vector, and n3 does rotation motion around n4.
P5 plane is the ring gear face, bottom of the second gear ring 63, and its planar process vector is n5, can realize P5 plane around n6 Vector rotation by the 3rd drive unit 69; P5 plane and P4 plane are fixing being rigidly connected, because P4, P5 plane is jointly formed on the second gear ring 63, when P5 plane is around n6 Vector rotation, drive n4 vector rotates by n5 vector together; In addition, the second drive unit 68 is arranged in P5 plane, when P5 Plane Rotation, is rotated together by drive second drive unit 68, and therefore, when n5 vector drives n4 vector to rotate, P2, P3 plane relative n4 vector angle does not change.So n5 vector is when n6 vector rotates, drive n4, n3, n2 vector is done overall revolution.
P6 plane is vehicle frame 70 plane, is vehicle body plane, and its normal vector is n6, stops ground normal direction overlap with car load.
The angular adjustment principle of pivoting support 60 is: the final purpose of the embodiment of the present invention realizes the relative n6 of n1 to realize turntable 40 relative frame 70 in any direction and change 0 ° of angle to 8 ° (by European norm), because n1, n2 overlap, omit n2, another n3, n4 overlap, omit n4, according to above elaboration, modular concept simplifies as shown in Figure 6.N1 is driven by the second drive unit 68, carries out rotation motion obtain n1 ' around n3, realizes the angle change of on fixed-direction 0 ° to 8 °, stop motion after obtaining required angle.Because the second drive unit 68 is fixed on P5, when n5 rotates around n6, the entirety on n3 and n1 ' travel direction will be driven to turn round, realize the change on any direction, finally realize angular adjustment object.
Comprehensively above-mentioned, the pivoting support 60 of the embodiment of the present invention has three pairs of turning surface groups, be combined by first lap roll piece 64 between first collar 61a with the first gear ring 62 and form first pair of turning surface group (i.e. P1 and P2 face group), enclose roll piece 65 by second between first gear ring 62 with the second gear ring 63 be combined and form second pair of turning surface group (i.e. P3 and P4 face group), enclose roll piece 66 by the 3rd between second gear ring 63 with the second collar 61b be combined and form the 3rd pair of turning surface group (i.e. P5 and P6 face group), roll piece is used to realize revolving support between each opposite group, formation tilt angle, relative P2 face, the P3 face design of the first gear ring 62, and the first gear ring 62 is designed to overall structure, formation tilt angle, relative P5 face, the P4 face design of the second gear ring 63, and the second gear ring 63 is designed to overall structure, make second pair of turning surface group (i.e. P3, P4 face group) relatively other two opposites groups (i.e. first pair of turning surface group and the 3rd pair of turning surface group) design in slanted angle, like this when n3 rotates around n4, P3 drives the rotation of P1, P2 face group, the maximum change realizing P1, P2 face group and form 2 times of slanted angles between P5, P6, second drive unit 68 is fixed on P5 face, when P5 face is rotated around n6 face, realizes P1, P2, P3, P4, P5 plane and does overall revolution around n6, thus realizes angle and tilt to any direction.
Understandable, the pivoting support of the embodiment of the present invention can realize turntable relative frame the angular adjustment of 0 ° to 8 °, is certainly realized the change of other angles by the angle of adjustment P3, P4 plane, also just can realize the adjustment of other angles more.
Understandable, each driving gear ring of the embodiment of the present invention is only provided with a drive motor, certainly can increases the quantity of drive motor on each driving gear ring.
Understandable, each driving gear ring of the embodiment of the present invention is all set to spur gear with coordinating between each drive motor, and helical gear can certainly be used to coordinate the revolution driving gear ring.
Understandable, the embodiment of the present invention uses ball as roll piece, other rotation modes can certainly be used to replace the revolution of ball, such as use roller bearing, needle bearing or slide block etc.
Understandable, the axial height of the wall of each gear ring (i.e. the first gear ring and the second gear ring) of the embodiment of the present invention circumferentially gradually changes, each gear ring is wedge shape, certainly the axial height of the wall of each gear ring circumferentially also can be all equal, second pair of turning surface group other two opposites groups relative (i.e. first pair of turning surface group and the 3rd pair of turning surface group) formed of only need guaranteeing to be combined with each other between the first gear ring with the second gear ring design in slanted angle, and the vehicle that can realize the embodiment of the present invention fills angle levelling function.
Understandable, first collar of the embodiment of the present invention is fixedly connected with turntable, and second collar is fixedly connected with vehicle frame; Certain first collar and second collar also can oppositely be arranged, and namely first collar is fixedly connected with vehicle frame, and second collar is fixedly connected with turntable, are also the principles that equally can realize angle leveling.
The embodiment of the present invention be intended to protect a kind of can self-regulating angle pivoting support and use the boom system of this pivoting support, this pivoting support can be used in the engineering machinery (such as hoist, concrete mixer) and special-purpose vehicle (such as high-altitude operation vehicle, elevating fire truck) with boom system.Understandable, above-described embodiment is described the structure of pivoting support and principle as an example with elevating fire truck, not limits the utilization of pivoting support.
The pivoting support that the embodiment of the present invention provides, relatively existing supporting leg leveling has the following advantages:
(1) existing supporting leg leveling is due to the restriction of support oil cylinder length, the maximum adjustment that can only realize 5 ° of angles, and the embodiment of the present invention can realize the adjustment at maximum 8 ° of angles;
(2) during existing supporting leg leveling due to problems such as the elasticity of support oil cylinder itself and precision, need repeatedly to adjust the change realizing vehicle body angle, and the embodiment of the present invention is by the feedback control drive motor of level sensor, can realize fast, angular adjustment accurately, on the elevating fire truck needing the requirement of height rescue equal time higher, there is great jump;
(3) the Long Distances leveling of support oil cylinder is needed during existing supporting leg leveling, so supporting leg and the usual design comparison of support oil cylinder large and heavy, take up room larger, and use the embodiment of the present invention as main leveling method, layout and the structure of supporting leg will be more flexible, for places such as the streets that space form is complicated, narrow, there is very large space advantage.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a pivoting support, comprise first collar and second collar, it is characterized in that: described pivoting support also comprises the first gear ring, second gear ring, first lap roll piece, second circle roll piece, 3rd circle roll piece, first drive unit, second drive unit and the 3rd drive unit, described first gear ring and described second gear ring are arranged between described first collar and described second collar, be combined by described first lap roll piece between described first collar with described first gear ring and form first pair of turning surface group, enclose roll piece by described second between described first gear ring with described second gear ring be combined and form second pair of turning surface group, enclose roll piece by the described 3rd between described second gear ring with described second collar be combined and form the 3rd pair of turning surface group, the relatively described first pair of turning surface group of described second pair of turning surface group and described 3rd pair of turning surface group are slanted angle, described first drive unit turns for driving the relatively described first set loopback of described first gear ring, described second drive unit is for driving the relatively described second gear ring revolution of described first gear ring, described 3rd drive unit is for driving relatively described second collar revolution of described second gear ring, the internal surface of described first gear ring is provided with the first driving gear ring in top, described first drives gear ring to be horizontally disposed with around the internal surface of described first gear ring, described first drive unit adopts gear drive, the gear and described first of described first drive unit drives gear ring to coordinate, the internal surface of described first gear ring is provided with the second driving gear ring in bottom, described second drives gear ring to be obliquely installed around the internal surface of described first gear ring, described second drive unit adopts gear drive, the gear and described second of described second drive unit drives gear ring to coordinate, the internal surface of described second gear ring is provided with the 3rd and drives gear ring in bottom, described 3rd drives gear ring to be horizontally disposed with around the internal surface of described second gear ring, described 3rd drive unit adopts gear drive, the gear of described 3rd drive unit drives gear ring to coordinate with the described 3rd.
2. pivoting support as claimed in claim 1, it is characterized in that, described first set ring set is located at the top peripheral of described first gear ring, described first lap roll piece is arranged between the internal surface of described first collar and the outer surface of described first gear ring, and described first lap roll piece is be horizontally disposed with around the periphery of described first gear ring.
3. pivoting support as claimed in claim 1 or 2, it is characterized in that, the top of described second gear ring is set in the periphery, bottom of described first gear ring, described second circle roll piece is arranged between the outer surface bottom the internal surface at described second gear ring top and described first gear ring, and described second circle roll piece is obliquely installed around the periphery of described first gear ring.
4. pivoting support as claimed in claim 3, it is characterized in that, described second collar is set in the periphery, bottom of described second gear ring, described 3rd circle roll piece is arranged between the internal surface of described second collar and the outer surface of described second gear ring, and described 3rd circle roll piece is be horizontally disposed with around the periphery of described second gear ring.
5. a boom system, comprise jib, elevating ram, turntable, vehicle frame, described jib is stretched oil cylinder by described act and is arranged on described turntable, it is characterized in that: also comprise the pivoting support as described in any one of Claims 1-4, described pivoting support to be located between described turntable with described vehicle frame and to be connected with described vehicle frame pivotally by described turntable; First collar of described pivoting support is fixedly connected with described turntable, and second collar of described pivoting support is fixedly connected with described vehicle frame.
6. boom system as claimed in claim 5, it is characterized in that, first drive unit of described pivoting support is fixed on described turntable, and the second drive unit of described pivoting support is fixed on described second gear ring, and the 3rd drive unit of described pivoting support is fixed on described vehicle frame.
7. an elevating fire truck, comprises working bucket, it is characterized in that: also comprise boom system as claimed in claim 6, and described working bucket is arranged on the jib of described boom system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210457518.9A CN102937139B (en) | 2012-11-14 | 2012-11-14 | Pivoting support, boom system and elevating fire truck |
| PCT/CN2012/087397 WO2014075371A1 (en) | 2012-11-14 | 2012-12-25 | Rotary bearing, cantilever system and elevated fire engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210457518.9A CN102937139B (en) | 2012-11-14 | 2012-11-14 | Pivoting support, boom system and elevating fire truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102937139A CN102937139A (en) | 2013-02-20 |
| CN102937139B true CN102937139B (en) | 2015-04-01 |
Family
ID=47696053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210457518.9A Active CN102937139B (en) | 2012-11-14 | 2012-11-14 | Pivoting support, boom system and elevating fire truck |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102937139B (en) |
| WO (1) | WO2014075371A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108358079A (en) * | 2018-04-24 | 2018-08-03 | 徐工集团工程机械股份有限公司 | A kind of Multifunctional working platform |
| CN111550175A (en) * | 2018-06-08 | 2020-08-18 | 陈城 | Fire fighting conveying scaling ladder |
| CN108821142A (en) * | 2018-08-02 | 2018-11-16 | 合肥市春华起重机械有限公司 | A kind of loop wheel machine and manipulator |
| CN109775570B (en) * | 2019-03-14 | 2020-08-04 | 南通润邦重机有限公司 | Automatic leveling method for hydraulic jacking type base |
| CN110980561B (en) * | 2019-12-16 | 2020-11-03 | 江苏航运职业技术学院 | Harbour crane jib loading boom slewer |
| US11772361B2 (en) | 2020-04-02 | 2023-10-03 | Corning Incorporated | Curved glass constructions and methods for forming same |
| CN114253277B (en) * | 2022-02-28 | 2022-07-05 | 徐工消防安全装备有限公司 | Work device control system and method for work vehicle, and work vehicle |
| CN115321443B (en) * | 2022-08-19 | 2024-06-04 | 青岛九合机械科技有限公司 | Pin bearing frame of high-altitude vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272842Y (en) * | 1996-07-17 | 1998-01-21 | 中国航空工业总公司第六○一研究所 | Skew plate leveling mechanism |
| CN2333837Y (en) * | 1998-06-08 | 1999-08-18 | 徐州回转支承公司 | Double-rotating oblique rollaway rotary support |
| CN1274822A (en) * | 1999-05-24 | 2000-11-29 | 株式会社森田 | Pipe-fitting joint and fire truck |
| CN2686581Y (en) * | 2004-03-22 | 2005-03-23 | 宇文合 | Slide type ambulance |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4303208A1 (en) * | 1992-03-24 | 1993-09-30 | Iveco Magirus | Device for the vertical alignment of the vertical axis of a structure connected to a base frame so that it can be rotated and tilted |
| US5834662A (en) * | 1993-06-19 | 1998-11-10 | Imo-Industrie-Momentenlager Stoll & Russ Gmbh | Arrangement for the rotary actuation of an apparatus on a chassis or foundation |
| CN202245732U (en) * | 2011-08-31 | 2012-05-30 | 杭州正翔起重机械制造有限公司 | Rotator of electromagnetic door type crane |
-
2012
- 2012-11-14 CN CN201210457518.9A patent/CN102937139B/en active Active
- 2012-12-25 WO PCT/CN2012/087397 patent/WO2014075371A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272842Y (en) * | 1996-07-17 | 1998-01-21 | 中国航空工业总公司第六○一研究所 | Skew plate leveling mechanism |
| CN2333837Y (en) * | 1998-06-08 | 1999-08-18 | 徐州回转支承公司 | Double-rotating oblique rollaway rotary support |
| CN1274822A (en) * | 1999-05-24 | 2000-11-29 | 株式会社森田 | Pipe-fitting joint and fire truck |
| CN2686581Y (en) * | 2004-03-22 | 2005-03-23 | 宇文合 | Slide type ambulance |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014075371A1 (en) | 2014-05-22 |
| CN102937139A (en) | 2013-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102937139B (en) | Pivoting support, boom system and elevating fire truck | |
| CN103463768B (en) | Levelling device, leveling turntable system and fire fighting truck | |
| CN204476252U (en) | A kind of wheeled Universal rotary rig | |
| CN109683277A (en) | A kind of heavy caliber primary mirror cell high-precision debugging device | |
| CN1899949A (en) | Lattice-boom crane for lifting heavy loads | |
| US10099660B2 (en) | Truck-mounted concrete pump and method for operating same | |
| CN107775611B (en) | Cantilever type multi-shaft rotary table for spacecraft attitude adjustment | |
| CN210210398U (en) | Swing arm mechanism with tail end kept horizontal passively | |
| CN108058155A (en) | A kind of robot arm device for being used to replace ball grinding machine lining board | |
| CN105544994A (en) | Unloading device used for steel structure support and unloading method thereof | |
| KR101329119B1 (en) | High place operation device and high place operation car | |
| CN203724673U (en) | Leveling device, rotary table leveling system and fire fighting truck | |
| CN106080833A (en) | A kind of aerial lift device and chassis thereof | |
| CN102689170A (en) | Support adjusting device for beam arm member and crane turnaround carrier vehicle | |
| CN103161316B (en) | Concrete pump truck | |
| CN208843685U (en) | A wide range of hydraulic three-level hoistable platform | |
| CN102756998B (en) | Anti-creeping mechanism for tower top guide pulley and steel wire rope of FAST (Five-hundred-meter Aperture Spherical radio Telescope) feed source supporting tower | |
| CN106181955A (en) | A kind of construction transportation industrial robot Special supporting device | |
| CN105439004A (en) | Hoisting equipment | |
| CN206110736U (en) | Device is built, is berthhed and maintain in feed cabin | |
| CN105668429A (en) | Multifunctional overhead lifting machine | |
| CN113752934B (en) | Layer-moving type large-stroke six-degree-of-freedom heavy-load installation vehicle | |
| CN104261280A (en) | Engineering machinery and changeable track base plate device thereof | |
| CN106080181B (en) | External driving unit and its application | |
| CN206088956U (en) | High altitude construction car work platform levelling device with prevent platform function of tumbling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 410200 No. 997, Section 2, Tengfei Road, Wangcheng District, Changsha City, Hunan Province Patentee after: Hunan Zoomlion emergency equipment Co.,Ltd. Address before: No.997 Jinxing Road, Wangcheng District, Changsha City, Hunan Province Patentee before: Changsha Zhonglian Fire-Fighting Machinery Co.,Ltd. |
|
| CP03 | Change of name, title or address |