CN113860194A - Rotary table and engineering machinery - Google Patents

Rotary table and engineering machinery Download PDF

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Publication number
CN113860194A
CN113860194A CN202111079530.6A CN202111079530A CN113860194A CN 113860194 A CN113860194 A CN 113860194A CN 202111079530 A CN202111079530 A CN 202111079530A CN 113860194 A CN113860194 A CN 113860194A
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CN
China
Prior art keywords
bottom plate
hinge point
plate
point hole
vertical
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CN202111079530.6A
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Chinese (zh)
Inventor
田秋娟
亢晨钢
王亚东
侯贺
王宗林
方欣
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Xuzhou XCMG Schwing Machinery Co Ltd
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Xuzhou XCMG Schwing Machinery Co Ltd
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Priority to CN202111079530.6A priority Critical patent/CN113860194A/en
Publication of CN113860194A publication Critical patent/CN113860194A/en
Pending legal-status Critical Current

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    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The invention belongs to the technical field of engineering machinery, and particularly relates to a rotary table and engineering machinery, wherein the rotary table comprises a bottom plate and two groups of vertical plates; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole; the vertical plate is fixedly connected with the bottom plate; the upper hinge point hole is hinged with an arm support of the engineering machinery; the lower hinge point hole is hinged with a variable amplitude oil cylinder of the engineering machinery; a luffing cylinder of the engineering machinery is hinged with an arm support of the engineering machinery; the vertical distance from the center of the upper hinge point hole to the center of the lower hinge point hole is not less than the distance from the center of the upper hinge point hole to the lower end surface of the bottom plate. The turntable provided by the invention overcomes the problem that the vertical adjustable space of a lower hinge point hole in the existing structure is small, can effectively reduce the acting force of a variable-amplitude oil cylinder, and is beneficial to the lightweight design of the oil cylinder and the space optimization design of the whole engineering machinery; meanwhile, the stress of the upper hinge point hole and the lower hinge point hole of the rotary table is reduced, the design requirements on the rotary table and the hinge point hole structure are reduced, and the lightweight design of the rotary table is facilitated.

Description

Rotary table and engineering machinery
Technical Field
The invention belongs to the technical field of engineering machinery, and particularly relates to a rotary table and engineering machinery.
Background
In engineering machinery, a rotary table is a key part for connecting an upper part and a lower part. The structure of a rotary table in the prior art is shown in the attached figure 1 of the specification, two hinge point holes are arranged on the rotary table, and the upper hinge point hole is hinged with an arm support through a pin shaft; the lower hinged point hole is hinged with the amplitude-variable oil cylinder through a pin shaft. In the existing rotary table structure, the position of a lower hinge point hole is higher than the upper plane of a rotary table bottom plate.
The attached figure 2 of the specification is a simplified diagram of the stress analysis of a variable amplitude oil cylinder in the prior art, the weight of a boom system is G, and the distance from the center of mass of the boom system to the center of a hinged point hole on a rotary table is LGThe point O is an upper hinge point hole of the rotary table, the point A is a lower hinge point hole of the rotary table, and the vertical distance between the center of the lower hinge point hole and the center of the upper hinge point hole is H1The distance from the center of the hinged point hole on the rotary table to the lower end surface of the bottom plate is H0. The moment arm from the center of the upper hinge point hole to the amplitude-variable oil cylinder is LYThen, the acting force of the variable amplitude oil cylinder is as follows:
F1＝G.LG/LY
when the distance between the center of the lower hinge point hole and the center of the upper hinge point hole of the turntable is from H1Increase to H11The force arm from the center of the upper hinge point hole to the amplitude-variable oil cylinder is LYIncrease to LY1Variable amplitude oil cylinder acting force F1And decreases. Therefore, in order to reduce the acting force of the luffing cylinder, the relative vertical distance between the center of the lower hinge point hole and the center of the upper hinge point hole needs to be increased.
According to mechanical analysis, the larger the vertical distance between the lower hinge point hole and the upper hinge point hole is, the smaller the force of the amplitude-variable oil cylinder is, the smaller the cylinder diameter of the required oil cylinder is, and meanwhile, the length increase of the amplitude-variable oil cylinder is less. Therefore, in the design process, in order to reduce the stress of the luffing cylinder and further reduce the weight of the luffing cylinder, the lower hinge point is arranged in the direction far away from the upper hinge point as much as possible.
There are currently two ways of adjustment: one is to increase the height H of the turntable0Another method is to reduce the distance H between the lower hinge point hole and the bottom plate as much as possible2. Due to the limitation of the height of the whole vehicle, the height of the lower part of the rotary table is reduced while the height of the rotary table is increased, so that the height H of the rotary table0Cannot be increased at will. In addition, considerThe lower hinge point hole must keep a certain distance from the bottom plate of the turntable for welding and processing requirements.
Therefore, the optimized space of the hinge point hole under the existing rotary table structure is limited by the height of the whole vehicle, and the optimized space is smaller. Along with the lengthening of the length of the arm support, the weight of the arm support system and the distance from the center of mass to the upper hinge point hole are continuously increased, the optimized space of the hinge point hole of the conventional rotary table structure is smaller, and the arm support system can be effectively driven only by increasing the specification of the variable amplitude oil cylinder, so that the weight is increased, the weight of the whole vehicle is increased, and the manufacturing cost is also increased.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the rotary table and the engineering machinery, the adjustable space of the lower hinge point hole is increased, the problem that the vertical adjustable space of the lower hinge point hole of the rotary table in the existing structure is smaller is solved, and the lightweight design of an oil cylinder is facilitated.
In order to solve the defects of the prior art, the technical scheme provided by the invention is as follows:
the invention provides a rotary table, which comprises a bottom plate and two groups of vertical plates;
the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole; the vertical plate is fixedly connected with the bottom plate;
the upper hinge point hole is hinged with an arm support of the engineering machinery;
the lower hinge point hole is hinged with a variable amplitude oil cylinder of the engineering machinery;
the amplitude variation oil cylinder of the engineering machinery is hinged with an arm support of the engineering machinery;
the vertical distance from the center of the upper hinge point hole to the center of the lower hinge point hole is not less than the distance from the center of the upper hinge point hole to the lower end surface of the bottom plate.
Preferably, the bottom plate is horizontally arranged, and an oil cylinder through hole I is formed in the central axis of the bottom plate;
the amplitude-variable oil cylinder penetrates through the first oil cylinder through hole;
the vertical plate comprises a first upper vertical plate and a first lower vertical plate;
the first upper vertical plates are vertically arranged, are parallel to each other, are fixedly connected with the bottom plate and are positioned on two sides of the first oil cylinder through hole; an upper hinge point hole is formed in the upper part of the upper vertical plate;
the upper hinge point hole is positioned above the bottom plate;
the first lower vertical plates are vertically arranged, are parallel to each other, are fixedly connected with the bottom plate and are positioned on two sides of the first oil cylinder through hole; a lower hinge point hole is formed in the lower part of the lower vertical plate;
the lower hinge point hole is positioned below the bottom plate.
Preferably, the bottom plate is horizontally arranged, and the bottom plate is provided with an oil cylinder through hole II;
the oil cylinder through hole II is cross-shaped or T-shaped and comprises a first passing part positioned at the central axis of the bottom plate and first connecting parts which are perpendicular to the first passing part and positioned at two sides of the first passing part;
the amplitude-variable oil cylinder penetrates through the first passing part;
the vertical plate comprises an upper vertical plate II and a lower vertical plate II;
the two upper vertical plates are parallel to each other, fixedly connected with the bottom plate and positioned on two sides of the first passing part; the upper part of the upper vertical plate II is provided with an upper hinge point hole;
the upper hinge point hole is positioned above the bottom plate;
the two lower vertical plates II are parallel to each other and fixedly connected with the first connecting part; a lower hinge point hole is formed in the second lower vertical plate;
the center of the lower hinge point hole is as high as the lower end surface of the bottom plate.
Preferably, the bottom plate is horizontally arranged, and one end of the bottom plate is provided with a first extending part;
the first extending parts are arranged in an axisymmetric mode by taking the central axis of the bottom plate as an axis;
the vertical plate comprises a third upper vertical plate and a third lower vertical plate;
the three upper vertical plates are vertically arranged, and the two three upper vertical plates are parallel to each other, are fixedly connected with the bottom plate and are positioned on two sides of the central axis; the upper part of the upper vertical plate III is provided with an upper hinge point hole;
the upper hinge point hole is positioned above the bottom plate;
the third lower vertical plates are vertically arranged, and the two third lower vertical plates are parallel to each other, fixedly connected with the first extension part and positioned on two sides of the central axis; a lower hinge point hole is formed in the third lower vertical plate;
the lower hinge point hole is positioned below the bottom plate or the center of the lower hinge point hole is as high as the lower end surface of the bottom plate.
Preferably, the bottom plate is horizontally arranged, and a third oil cylinder through hole is formed in the central axis of the bottom plate;
the amplitude-variable oil cylinder penetrates through the oil cylinder through hole III;
the vertical plates are integrally formed and vertically arranged, and the two groups of vertical plates are parallel to each other, extend from the upper part of the bottom plate to the lower part of the bottom plate, are fixedly connected with the bottom plate and are positioned at two sides of the oil cylinder through hole III; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole;
the upper hinge point hole is positioned above the bottom plate;
the lower hinge point hole is positioned below the bottom plate.
Preferably, the bottom plate is horizontally arranged, and the bottom plate is provided with an oil cylinder through hole IV;
the oil cylinder through hole IV is cross-shaped or T-shaped and comprises a second passing part positioned at the central axis of the bottom plate and second connecting parts which are perpendicular to the second passing part and positioned at two sides of the second passing part;
the amplitude-variable oil cylinder penetrates through the second passing part;
the vertical plates are integrally formed and vertically arranged, extend from the upper part of the bottom plate to the lower part of the bottom plate, and are parallel to each other and fixed on the bottom plate; the lower part of the vertical plate is fixedly connected with the second connecting part; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole;
the upper hinge point hole is positioned above the bottom plate;
the center of the lower hinge point hole is as high as the lower end surface of the bottom plate.
Preferably, the bottom plate is horizontally arranged, and one end of the bottom plate is provided with a second extending part;
the second extending part is arranged in an axisymmetric manner by taking the central axis of the bottom plate as an axis;
the vertical plates are integrally formed and vertically arranged and extend from the upper part of the bottom plate to the lower part of the bottom plate, the two groups of vertical plates are parallel to each other and are fixed on the bottom plate, and the lower parts of the vertical plates are fixedly connected with the second extending parts; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole;
the upper hinge point hole is positioned above the bottom plate;
the lower hinge point hole is positioned below the bottom plate or the center of the lower hinge point hole is as high as the lower end surface of the bottom plate.
Preferably, a groove is arranged at the joint of the vertical plate and the bottom plate.
Preferably, the device further comprises a stabilizing piece; the stabilizing piece is used for improving the connecting strength of the vertical plate and the bottom plate.
The invention further provides engineering machinery comprising the rotary table.
The invention has the beneficial effects that:
1) according to the turntable, the lower hinge point hole is arranged below the bottom plate or is flush with the bottom plate, the problem that the vertical adjustable space of the lower hinge point hole in the existing structure is small is solved, the adjustable space of the lower hinge point hole is increased, the acting force of the variable-amplitude oil cylinder can be effectively reduced, the lightweight design of the oil cylinder is facilitated, and the manufacturing cost of the oil cylinder is reduced;
2) the turntable provided by the invention effectively reduces the acting force of the variable amplitude oil cylinder, simultaneously reduces the stress of the upper hinge point hole and the lower hinge point hole of the turntable, reduces the design requirements on the turntable and the related hinge point hole structure, and is beneficial to the lightweight design of the related structure of the turntable;
3) the position of the lower hinge point hole provided by the invention is not limited by the height of the rotary table any more, so that the design space of the lower part can be considered preferentially when the whole engineering machine is designed, and the space optimization design of the whole engineering machine is facilitated.
Drawings
FIG. 1 is a schematic diagram of a turntable in the prior art;
FIG. 2 is a schematic diagram of a stress analysis of a luffing cylinder in the prior art;
fig. 3 is a schematic diagram of a turntable according to an embodiment of the present invention;
fig. 4(a) is a schematic structural diagram of a turntable according to an embodiment of the present invention;
fig. 4(b) is a top view of a turntable according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fourth upper vertical plate and a fourth lower vertical plate according to a first embodiment of the present invention;
fig. 6 is a schematic structural diagram of a first vertical plate according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a turntable according to a second embodiment of the present invention;
fig. 8 is a schematic structural diagram of a second bottom plate according to a second embodiment of the present invention;
fig. 9 is a schematic structural diagram of a turntable according to a third embodiment of the present invention;
fig. 10 is a schematic structural diagram of a third bottom plate according to a third embodiment of the present invention;
fig. 11 is a schematic structural diagram of a turntable according to a fourth embodiment of the present invention;
fig. 12 is a front view of a turntable provided in accordance with a fourth embodiment of the present invention;
fig. 13 is a top view of a turntable according to a fourth embodiment of the present invention;
fig. 14 is a schematic structural diagram of a bottom plate four according to a fourth embodiment of the present invention;
fig. 15 is a schematic structural view of a third vertical plate according to a fourth embodiment of the present invention;
fig. 16 is a front view of a turntable provided in a fifth embodiment of the present invention;
fig. 17 is a top view of a turntable according to a fifth embodiment of the present invention;
fig. 18 is a schematic structural diagram of a turntable according to a fifth embodiment of the present invention;
wherein:
H1、H11the vertical distance between the center of a lower hinge point hole of the rotary table and the center of an upper hinge point hole of the rotary table;
H0is the turntable height;
H2the distance from the center of a lower hinge point hole of the turntable to the upper plane of the bottom plate of the turntable;
g is the weight of the arm support system; l isGThe distance from the center of mass of the boom system to the center of the upper hinge point hole is calculated;
LY、LY1from the center of an upper hinge point hole to a variable amplitude oil cylinderThe moment arm of (a);
o is an upper hinge point hole; A. a. the1Is a lower hinge point hole;
21 is a first bottom plate; 22. the 23 is an upper vertical plate IV; 24. a fourth lower vertical plate 25; 26 is a connecting plate I; 27 is a connecting plate II; 28 is a connecting plate III; 29 is a connecting plate four; 30 is a first reinforcing plate; 210 is a cylinder through hole V; 10 is an upper hinge point hole I; 20 is a first lower hinge point hole;
22 'and 23' are vertical plates I; 21' is a second bottom plate; 24' is a second lower hinge point hole; 25' is a second upper hinge point hole; 26' is a cylinder through hole six; 211 is groove one; 27' is a bolt hole I;
31 is a bottom plate III; 311 is a long hole; 32. 33 is a second vertical plate; 34 is a lower hinge point hole III; 35 is an upper hinge point hole III; 36 is an oil cylinder through hole seven;
41 is a bottom plate IV; 42. 43 is a vertical plate III; 50' is a lower hinge point hole IV; 40' is an upper hinge point hole IV; 421. 431 is a notch; 411 is a notch; 44 is a connecting plate five; 45 is a connecting plate six; 46 is a connecting plate seven; 47 is a connecting plate eight; 48 is a connecting plate nine; 49. 50 is a second reinforcing plate; 51. 52 is a rib plate I; 53. 54 is a rib plate II; 55 is a bolt hole II; 56 extension three;
60' is an upper hinge point hole five; 70' is a fifth lower hinge point hole; 61 is a bottom plate five; 62. 63 is a vertical plate IV; the 64 is a connecting plate ten; 65 is a connecting plate eleven; 66 is a connecting plate twelve; 67 is a connecting plate thirteen; 68 is a fourteen connecting plate; 69. 70 is a third reinforcing plate; 71. 72 is a rib plate III; 73. rib plate four is 74; 75 is bolt hole three; and 76 is extension four.
Detailed Description
The present invention will be further described with reference to the following embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and the protection scope of the present invention is not limited thereby.
The embodiment of the invention provides a rotary table, which comprises a bottom plate and two groups of vertical plates; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole; the vertical plate is fixedly connected with the bottom plate; the upper hinge point hole is hinged with the tail end of the arm support of the engineering machinery through a pin shaft; the lower hinge point hole is hinged with a variable amplitude oil cylinder of the engineering machinery through a pin shaft; a luffing cylinder of the engineering machinery is hinged with an arm support of the engineering machinery through a pin shaft; the vertical distance from the center of the upper hinge point hole to the center of the lower hinge point hole is greater than or equal to the distance from the center of the upper hinge point hole to the lower end surface of the bottom plate.
When the rotary table is used, the bottom plate is fixedly connected with the lower part of the lower part, and the lower hinge point hole is arranged below the bottom plate or at a position flush with the bottom plate by utilizing the space of the lower part under the condition that the height of the rotary table is not increased. The distance between the lower hinge point hole and the upper hinge point hole in the vertical direction has a large influence on the acting force of the oil cylinder, but has a small influence on the length and the stroke of the oil cylinder. The lower hinge point hole is arranged below the bottom plate or the height of the lower hinge point hole is flush with the bottom plate, the problem that the vertical adjustable space of the lower hinge point hole of the rotary table in the existing structure is small is solved, and the adjustable space of the lower hinge point hole is increased. The structural form can effectively reduce the acting force of the variable amplitude oil cylinder, the cylinder diameter can be correspondingly reduced, and the weight is reduced; although the stroke and the installation distance of the oil cylinder are increased, namely the length of the oil cylinder is slightly increased, the weight increase caused by the slightly increased length is smaller than the weight reduced by the reduction of the cylinder diameter, so that the turntable provided by the invention is beneficial to the lightweight design of the amplitude-variable oil cylinder, and the manufacturing cost of the amplitude-variable oil cylinder can be reduced.
Specifically, a circle of bolt holes are formed in the outer side of the bottom plate along the circumference, and the bottom plate is fixedly connected with the lower part of the engineering machinery through bolts penetrating through the bolt holes.
In an optional embodiment of the invention, the bottom plate is horizontally arranged, and a first oil cylinder through hole is formed in the central axis of the bottom plate; the amplitude-variable oil cylinder penetrates through the first oil cylinder through the hole; the vertical plate comprises a first upper vertical plate and a first lower vertical plate; the first upper vertical plates are vertically arranged, are parallel to each other, are fixedly connected with the bottom plate and are positioned at two sides of the first oil cylinder through hole; an upper hinge point hole is formed in the upper part of the upper vertical plate; the upper hinge point hole is positioned above the bottom plate; the first lower vertical plates are vertically arranged, are parallel to each other, are fixedly connected with the bottom plate and are positioned on two sides of the first oil cylinder through hole; a lower hinge point hole is formed in the lower part of the lower vertical plate; the lower hinge point hole is positioned below the bottom plate. The lower hinge point hole is arranged below the bottom plate, namely the lower hinge point hole is positioned at the lower mounting part of the engineering machinery, so that the vertical distance from the upper hinge point hole to the lower hinge point hole can be obviously increased. The first upper vertical plate is not connected with the first lower vertical plate, the plate distance of the first lower vertical plate can be adjusted according to the design of the variable amplitude oil cylinder, the plate distance of the first lower vertical plate can be unequal to the plate distance of the first upper vertical plate, and the first upper vertical plate and the first lower vertical plate can be flexibly arranged as required.
In an optional embodiment of the invention, the bottom plate is horizontally arranged and is provided with a second oil cylinder through hole; the oil cylinder through hole II is cross-shaped or T-shaped and comprises a first passing part positioned at the central axis of the bottom plate and first connecting parts which are perpendicular to the first passing part and positioned at two sides of the first passing part; the amplitude-variable oil cylinder penetrates through the first passing part; the vertical plate comprises an upper vertical plate II and a lower vertical plate II; the two upper vertical plates are parallel to each other, fixedly connected with the bottom plate and positioned on two sides of the first passing part; the upper part of the upper vertical plate II is provided with an upper hinge point hole; the upper hinge point hole is positioned above the bottom plate; the two lower vertical plates II are parallel to each other and fixedly connected with the first connecting part; a lower hinge point hole is formed in the second lower vertical plate; the center of the lower hinge point hole is as high as the lower end surface of the bottom plate. In the real-time mode, the center of the lower hinge point hole is as high as the bottom plate, and the vertical distance from the upper hinge point hole to the lower hinge point hole can be increased. The size of the connecting part I can be adjusted according to the design of the variable amplitude oil cylinder, the plate distance of the lower vertical plate II is further adjusted, and the upper vertical plate II and the lower vertical plate II are flexibly designed according to requirements.
In an optional embodiment of the invention, the bottom plate is horizontally arranged, and one end of the bottom plate is provided with a first extending part; the first extending parts are arranged in an axisymmetric manner by taking the central axis of the bottom plate as an axis; the vertical plate comprises a third upper vertical plate and a third lower vertical plate; the three upper vertical plates are vertically arranged, and the two three upper vertical plates are parallel to each other, are fixedly connected with the bottom plate and are positioned on two sides of the central axis; the upper part of the upper vertical plate III is provided with an upper hinge point hole; the upper hinge point hole is positioned above the bottom plate; the third lower vertical plates are vertically arranged, and the two third lower vertical plates are parallel to each other, fixedly connected with the first extension part and positioned on two sides of the central axis; a lower hinge point hole is formed in the third lower vertical plate; the lower hinge point hole is positioned below the bottom plate or the center of the lower hinge point hole is as high as the lower end surface of the bottom plate. In this embodiment, the first extension portion is used to fix the third lower vertical plate to the outer side of the bolt hole on the base plate, that is, the lower hinge point hole is located on the outer side of the bolt hole.
In an optional embodiment of the invention, the bottom plate is horizontally arranged, and a third oil cylinder through hole is formed in the central axis of the bottom plate; the amplitude-variable oil cylinder penetrates through the oil cylinder through hole III; the vertical plates are integrally formed and vertically arranged, and the two groups of vertical plates are parallel to each other, extend from the upper part of the bottom plate to the lower part of the bottom plate, are fixedly connected with the bottom plate and are positioned at two sides of the oil cylinder through hole III; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole; the upper hinge point hole is positioned above the bottom plate; the lower hinge point hole is positioned below the bottom plate. The strength of the vertical plate can be improved by integrally forming the vertical plate. The lower hinge point hole is arranged below the bottom plate, namely the lower hinge point hole is positioned at the lower mounting part of the engineering machinery, so that the vertical distance from the upper hinge point hole to the lower hinge point hole can be obviously increased.
In an optional embodiment of the invention, the bottom plate is horizontally arranged, and the bottom plate is provided with an oil cylinder through hole IV; the oil cylinder through hole IV is cross-shaped or T-shaped and comprises a second passing part positioned at the central axis of the bottom plate and second connecting parts which are perpendicular to the second passing part and positioned at two sides of the second passing part; the amplitude-variable oil cylinder penetrates through the second passing part; the vertical plates are integrally formed and vertically arranged, extend from the upper part of the bottom plate to the lower part of the bottom plate, and are parallel to each other and fixed on the bottom plate; the lower part of the vertical plate is fixedly connected with the second connecting part; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole; the upper hinge point hole is positioned above the bottom plate; the center of the lower hinge point hole is as high as the lower end surface of the bottom plate. In the real-time mode, the center of the lower hinge point hole is as high as the bottom plate, and the vertical distance from the upper hinge point hole to the lower hinge point hole can be increased.
In an optional embodiment of the invention, the bottom plate is horizontally arranged, and one end of the bottom plate is provided with a second extending part; the second extending part is arranged in an axisymmetric manner by taking the central axis of the bottom plate as an axis; the vertical plates are integrally formed and vertically arranged, extend from the upper part of the bottom plate to the lower part of the bottom plate, are parallel to each other and are fixed on the bottom plate, and the lower parts of the vertical plates are fixedly connected with the second extending parts; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole; the upper hinge point hole is positioned above the bottom plate; the lower hinge point hole is positioned below the bottom plate or the center of the lower hinge point hole is as high as the lower end surface of the bottom plate. In this embodiment, the vertical plate is fixed outside the bolt hole on the bottom plate by the arrangement of the second extending portion, that is, the lower hinge point hole is located outside the bolt hole.
In an optional embodiment of the invention, a groove is arranged at the joint of the vertical plate and the bottom plate. The form and the quantity of the grooves can be flexibly designed as required, the connecting area of the bottom plate and the vertical plate is increased, and the structural strength is ensured.
In an alternative embodiment of the invention, the turntable further comprises a stabilizing member; the steadying piece is used for improving the joint strength of riser and bottom plate. Can design the form and the quantity of steadiness spare in a flexible way as required, the steadiness spare can be used for connecting two sets of risers, also can connect riser and bottom plate.
In an optional embodiment of the invention, the lower hinge point hole is positioned at the lower end of the vertical plate; the upper hinge point hole is positioned at the upper end of the vertical plate so as to increase the vertical distance between the lower hinge point hole and the upper hinge point hole as much as possible.
In an alternative embodiment of the invention, lightening holes can be arranged on the bottom plate, the vertical plate and the steady piece according to requirements so as to lighten the weight of the rotary table.
The rotary table provided by the invention can be used for engineering machinery comprising the rotary table and the arm support, such as a concrete pump truck, a material distributor, a guniting truck and the like.
The embodiment of the invention also provides engineering machinery comprising the rotary table. The engineering machinery can be a concrete pump truck, a material distributor, a guniting truck and the like, and can also be other machinery with a rotary table and an arm support.
Example one
Referring to fig. 4(a) and 4(b), the turntable includes a first bottom plate 21, two sets of vertical plates, and a fixing member. The first bottom plate 21 is horizontally arranged, a cylinder through hole five 210 is formed in the central axis of the first bottom plate 21, and a plurality of lightening holes are formed in the bottom plate 21. Referring to fig. 4(a) and 5, the vertical plate includes a fourth upper vertical plate 22, a fourth upper vertical plate 23, a fourth lower vertical plate 24, and a fourth lower vertical plate 25. The fourth upper vertical plate 22 and the fourth upper vertical plate 23 are triangular flat plates with lightening holes, are vertically arranged and are parallel to each other, the lower ends of the triangular flat plates are fixedly connected with the upper end face of the first bottom plate 21, and the triangular flat plates are positioned at two sides of the fifth oil cylinder through hole 210. The fourth lower vertical plate 24 and the fourth lower vertical plate 25 are triangular flat plates which are vertically arranged and parallel to each other, the upper end face of the fourth lower vertical plate is fixedly connected with the lower end face of the first bottom plate 21 and is positioned on two sides of the first oil cylinder through hole 210. Referring to fig. 3 and 5, the upper ends of the four upper vertical plates 22 and 23An upper hinge point hole I10 is arranged; the fourth lower vertical plate 24 and the fourth lower vertical plate 25 are provided with a first lower hinge point hole 20. Referring to fig. 4(a) and 4(b), the stabilizing member includes a first connecting plate 26, a second connecting plate 27, a third connecting plate 28, a fourth connecting plate 29 and a first reinforcing plate 30. The first connecting plate 26 is a flat plate and is located between the fourth upper vertical plate 22 and the fourth upper vertical plate 23 and close to the first upper hinge point hole, two sides of the first connecting plate 26 are fixedly connected with the fourth upper vertical plate 22 and the fourth upper vertical plate 23, and the lower end of the first connecting plate is fixedly connected with the first bottom plate 21. The second connecting plate 27 is an arc-shaped plate, the inner side face of the second connecting plate is fixedly connected with the lower ends of the fourth upper vertical plate 22 and the fourth upper vertical plate 23 which are far away from the upper hinge point hole 10, and the lower end face of the second connecting plate is fixedly connected with the upper end face of the first bottom plate 21. The third connecting plate 28 is a bent plate, two sides of the third connecting plate are fixedly connected with the inner side surfaces of the fourth lower vertical plate 24 and the fourth lower vertical plate 25, and the upper end of the third connecting plate is fixedly connected with the lower end surface of the first bottom plate 21. The first reinforcing plate 30 is two flat plates and is positioned below the first upper hinge point hole 10, the inner side face of the first reinforcing plate is fixedly attached to the outer side faces of the fourth upper vertical plate 22 and the fourth upper vertical plate 23, and the lower end face of the first reinforcing plate is fixedly connected with the first bottom plate 21. The fourth connecting plate 29 is two arc plates, is close to the first upper hinge point hole 10, is fixedly connected with the outer side surface of the first reinforcing plate 30 on the side surface, and is fixedly connected with the first bottom plate 21 on the bottom end. The upper hinge point hole I is used for being hinged with the arm support; and the lower hinge point hole I is used for being hinged with the amplitude variation oil cylinder. Referring to fig. 3, the vertical distance H from the center of the lower hinge point hole i 20 to the center of the upper hinge point hole i 101Is greater than the distance H from the center of the upper hinge point hole I10 to the lower end surface of the bottom plate I210。
Example two
Referring to fig. 7, the turntable includes a second bottom plate 21 ', a first vertical plate 22 ', and a first vertical plate 23 '. Referring to fig. 8, the second bottom plate 21 ' is horizontally arranged and is a circular flat plate with lightening holes, a circle of first bolt holes 27 ' is arranged on the periphery, and a cylinder through hole six 26 ' is arranged at the central axis. Referring to fig. 6 and 7, the first vertical plate 22 'and the first vertical plate 23' are integrally formed, the upper portion is a triangular flat plate with lightening holes, the lower portion is a triangular flat plate, the first vertical plate is vertically arranged, extends from the upper portion of the second bottom plate 21 'to the lower portion of the second bottom plate 21', is fixed on the second bottom plate 21 'in parallel and is positioned at two sides of the oil cylinder through hole six 26'; the upper ends of the first vertical plate 22 'and the first vertical plate 23' are provided with a second upper hinge point hole 25 ', and the lower ends thereof are provided with a second lower hinge point hole 24'; the second upper hinge point hole 25 'is positioned above the second bottom plate 21'; the second lower hinge point hole 24 'is positioned below the second bottom plate 21'. Referring to fig. 7, the second lower hinge point hole 24 'is located inside the first bolt hole 27'. Referring to fig. 8, a groove I211 is formed at the junction of the two sides of the oil cylinder through hole VI 26' and the outer side surface of the first vertical plate, so that the connection area of the second bottom plate and the first vertical plate is increased, and the structural strength is ensured. In the real-time example, the second lower hinge point hole is positioned at the lower mounting position of the engineering machinery, so that the vertical distance from the second upper hinge point hole to the second lower hinge point hole can be remarkably increased. The first vertical plate can be integrally formed through blanking.
EXAMPLE III
Referring to fig. 9 and 10, the turntable includes a third bottom plate 31, a second vertical plate 32, and a second vertical plate 33. The third bottom plate 31 is a circular flat plate with lightening holes and is horizontally arranged, an oil cylinder through hole seventh 36 is arranged at the central axis, two long holes 311 are arranged at two sides of the oil cylinder through hole seventh 36, and grooves II are arranged at two sides of the long holes 311. The second vertical plate 32 and the second vertical plate 33 are integrally formed, the upper portion of the second vertical plate is a triangular flat plate with lightening holes, the lower portion of the second vertical plate is a triangular flat plate which is vertically arranged, and the second vertical plate 32 and the second vertical plate 33 penetrate through the strip holes 311, extend from the upper portion of the third bottom plate 31 to the lower portion of the third bottom plate 31, are fixed on the third bottom plate 31 in parallel and are positioned on two sides of the oil cylinder through hole seven 36. The upper parts of the second vertical plate 32 and the second vertical plate 33 are provided with a third upper hinge point hole 35, and the lower parts of the second vertical plate 32 and the second vertical plate 33 are provided with a third lower hinge point hole 34; the upper hinge point hole III 35 is positioned above the bottom plate III 31; the third lower hinge point hole 34 is positioned below the third bottom plate 31. The design of the strip hole and the groove II ensures that both sides of the vertical plate II can be connected with the bottom plate III, the connection area of the bottom plate III and the vertical plate II is increased, and the structural strength is improved. In the real-time example, the third lower hinge point hole is positioned at the lower mounting position of the engineering machinery, so that the vertical distance from the third upper hinge point hole to the third lower hinge point hole can be remarkably increased. The second vertical plate can be integrally formed through blanking.
Example four
Referring to fig. 11-13, the turntable includes a bottom plate four 41, an upright plate three 42, an upright plate three 43, and a stabilizing member. Referring to fig. 14, a bottom plate four 41 is horizontally arranged, a main body is circular and is provided with lightening holes, a circle of bolt holes two 55 is arranged on the periphery, and an extension part three 56 is arranged at one end; the third extension portion 56 is disposed axially symmetrically with respect to the central axis of the fourth base plate 41. Referring to fig. 14, the third extension part 56 is U-shaped, and a notch 411 is formed in the middle of the outer side of the third extension part, so that the luffing cylinder can conveniently penetrate through the notch. Referring to fig. 11, 12 and 15, the third vertical plate 42 and the third vertical plate 43 are integrally formed, the upper portion is a triangular flat plate, the lower portion is an irregular flat plate, a long-strip-shaped notch 421 is formed at the junction of the upper portion and the lower portion of the third vertical plate 42, and a long-strip-shaped notch 431 is formed at the junction of the upper portion and the lower portion of the third vertical plate 43. The third vertical plate 42 and the third vertical plate 43 are vertically arranged and parallel to each other, and extend from the upper side of the fourth bottom plate 41 to the lower side of the fourth bottom plate 41, the lower end surfaces of the upper parts of the third vertical plate 42 and the third vertical plate 43 are fixedly connected with the upper end surface of the fourth bottom plate 41, the upper end surfaces of the lower parts of the third vertical plate 42 and the third vertical plate 43 are fixedly connected with the lower end surface of the fourth bottom plate 41, and the third vertical plate 42 and the third vertical plate 43 are fixedly connected with the third extension part 56 through the notch 421 and the notch 431. Referring to fig. 11, the upper parts of the third vertical plate 42 and the third vertical plate 43 are provided with a fourth upper hinge point hole 40 ', and the lower parts thereof are provided with a fourth lower hinge point hole 50'; the upper hinge point hole four 40' is positioned above the bottom plate four 41; the lower hinge point hole four 50' is located below the bottom plate four 41. The lower hinge point hole four 50' is located outside the bolt hole two 55. Referring to fig. 11 to 13, the fixing piece comprises a connecting plate five 44, a connecting plate six 45, a connecting plate seven 46, a connecting plate eight 47, a connecting plate nine 48, a reinforcing plate two 49, a reinforcing plate two 50, a rib plate one 51, a rib plate one 52, a rib plate two 53 and a rib plate two 54. The connecting plate five 44 is a flat plate, is positioned between the vertical plate three 42 and the vertical plate three 43 and is close to the upper hinge point hole four 40', two sides of the connecting plate five 44 are fixedly connected with the vertical plate three 42 and the vertical plate three 43, and the lower end of the connecting plate five 44 is fixedly connected with the bottom plate four 41. Referring to fig. 11, the connecting plate six 45 is an arc-shaped plate, the lower end of the connecting plate is fixed on the bottom plate four 41, the lower end of the connecting plate is close to the extending portion three, and the two sides of the connecting plate are fixedly connected with the inner side surfaces of the vertical plate three 42 and the vertical plate three 43. The seventh connecting plate 46 is a bent plate, the upper end of the seventh connecting plate is fixedly connected with the upper end of the fifth connecting plate 44, and the two sides of the seventh connecting plate are fixedly connected with the inner sides of the third vertical plate 42 and the third vertical plate 43. The connecting plate eighth 47 is a bent plate and is in an inverted U shape, the upper end of the middle part is fixedly connected with the lower end of the connecting plate seventh 46, and the two sides are fixedly connected with the inner sides of the vertical plate third 42 and the vertical plate third 43. The connecting plate nine 48 is a bent plate, one upper end of the connecting plate nine 48 is connected with the lower end of the connecting plate eight 47, the other upper end of the connecting plate nine is fixedly connected with the lower end face of the extending part three 56, two sides of the connecting plate nine are fixedly connected with the inner sides of the vertical plate three 42 and the vertical plate three 43, and a hole is formed in the end part of the connecting plate nine 48, which is connected with the lower end of the connecting plate eight 47, so that an oil cylinder can pass through the hole. The connecting plate five 44, the connecting plate six 45, the connecting plate seven 46 and the connecting plate eight 47 connect the vertical plate three 42, the vertical plate three 43 and the bottom plate four 41 into a box body, so that the rigidity and the stability of the turntable structure can be enhanced. The second reinforcing plate 49 and the second reinforcing plate 50 are flat plates and are positioned below the fourth upper hinge point hole 40', the inner side surfaces of the second reinforcing plate and the second reinforcing plate are fixedly attached to the outer side surfaces of the third vertical plate 42 and the third vertical plate 43, and the lower end surfaces of the second reinforcing plate and the second reinforcing plate are fixedly connected with the fourth bottom plate 41. The first rib plate 51 and the first rib plate 52 are arc-shaped plates, the side edge of the first rib plate 51 is fixedly connected with the outer side face of the second rib plate 49, and the lower end face of the first rib plate 51 is fixedly connected with the fourth bottom plate 41; the side edge of the rib plate I52 is fixedly connected with the outer side surface of the reinforcing plate II 50, and the lower end surface of the rib plate I is fixedly connected with the bottom plate IV 41. The second rib plate 53 and the second rib plate 54 are arc-shaped plates, the lower ends of the second rib plate 53 and the second rib plate 54 are fixed on the fourth bottom plate 41, the second rib plate is close to the third extending part, and the side surfaces of the second rib plate 53 and the second rib plate 54 are respectively fixedly connected with the outer side surfaces of the third vertical plate 42 and the third vertical plate 43. The rib plate I51, the rib plate I52, the rib plate II 53 and the rib plate II 54 are used for increasing the local rigidity and the strength of the rotary table.
EXAMPLE five
Referring to fig. 17 and 18, the turntable includes a bottom plate five 61, a vertical plate four 62, a vertical plate four 63, and a stabilizing member. Referring to fig. 17, a bottom plate five 61 is horizontally arranged, a main body is circular and is provided with lightening holes, a circle of bolt holes three 75 is arranged on the periphery, and an extension part four 76 is arranged at one end; the extension portion four 76 is disposed axially symmetrically with respect to the center axis of the bottom plate five 61. Referring to fig. 16 and 18, the fourth vertical plate 62 and the fourth vertical plate 63 are integrally formed, the upper portion is a triangular flat plate, the lower portion is an irregular flat plate, and a strip-shaped groove is formed at the junction of the upper portion and the lower portion of the fourth vertical plate 62 and the fourth vertical plate 63. The fourth vertical plate 62 and the fourth vertical plate 63 are vertically arranged and are parallel to each other, the fourth vertical plate 62 and the fourth vertical plate 63 extend from the upper side of the fifth bottom plate 61 to the lower side of the fifth bottom plate 61, the lower end faces of the upper portions of the fourth vertical plate 62 and the fourth vertical plate 63 are fixedly connected with the upper end face of the fifth bottom plate 61, the upper end faces of the lower portions of the fourth vertical plate 62 and the fourth vertical plate 63 are fixedly connected with the lower end face of the fifth bottom plate 61, and the fourth vertical plate 62 and the fourth vertical plate 63 are fixedly connected with the fourth extension portion 76 through strip-shaped grooves. Referring to fig. 18, the upper parts of the four vertical plates 62 and 63 are provided with five upper hinge point holes 60 ', and the lower parts thereof are provided with five lower hinge point holes 70'; the upper hinge point hole five 60' is positioned above the bottom plate five 61; the lower hinge point hole five 70 'is located below the bottom plate five 61, wherein the lower hinge point hole five 70' is located outside the bolt hole three 75. Referring to fig. 17 and 18, the steady piece comprises a connecting plate ten 64, a connecting plate eleven 65,Connecting plate twelve 66, connecting plate thirteen 67, connecting plate fourteen 68, reinforcing plate three 69, reinforcing plate three 70, rib plate three 71, rib plate three 72, rib plate four 73 and rib plate four 74. The connecting plate ten 64 is a flat plate and is positioned between the vertical plate four 62 and the vertical plate four 63 and close to the upper hinge point hole five 60', two sides of the connecting plate ten 64 are fixedly connected with the vertical plate four 62 and the vertical plate four 63, and the lower end of the connecting plate ten 64 is fixedly connected with the bottom plate five 61. Referring to fig. 18, the connecting plate eleventh 65 is an arc-shaped plate, the lower end of the connecting plate eleventh is fixed on the bottom plate fifth 61, the lower end of the connecting plate eleventh is close to the extending portion fourth 76, and both sides of the connecting plate eleventh are fixedly connected with the inner side surfaces of the vertical plate fourth 62 and the vertical plate fourth 63. Referring to fig. 17 and 18, the connecting plate twelve 66 is a bent plate, the upper end of the connecting plate twelve 64 is fixedly connected with the upper end of the connecting plate, and the two sides of the connecting plate twelve 66 are fixedly connected with the inner side surfaces of the vertical plates four 62 and four vertical plates 63. Referring to fig. 18, the connecting plate thirteen 67 is a bent plate and is in an inverted U shape, the upper end of the middle part is fixedly connected with the lower end of the connecting plate twelve 66, and the two sides are fixedly connected with the inner sides of the vertical plate four 62 and the vertical plate four 63. The connecting plate fourteen 68 is a bent plate, the upper end of one of the connecting plate fourteen 68 is fixedly connected with the lower end of the connecting plate thirteen 67, the other upper end of the connecting plate fourteen 68 is fixedly connected with the lower end face of the extending part four 76, two sides of the connecting plate fourteen 68 are fixedly connected with the inner sides of the vertical plate four 62 and the vertical plate four 63, and a hole is formed in the end part of the connecting plate fourteen 67 connected with the lower end of the connecting plate thirteen 67 so that an oil cylinder can pass through the connecting plate fourteen 68. The connecting plate thirteen 64, the connecting plate eleventh 65, the connecting plate twelfth 66 and the connecting plate thirteenth 67 connect the vertical plate fourth 62, the vertical plate fourth 63 and the bottom plate fifth 61 into a box body, so that the rigidity and the stability of the turntable structure can be enhanced. Referring to fig. 17 and 18, the third reinforcing plate 69 and the third reinforcing plate 70 are flat plates and are located below the fifth upper hinge point hole 60', the inner side surfaces of the third reinforcing plate and the third reinforcing plate are respectively attached and fixed to the outer side surfaces of the fourth vertical plate 62 and the fourth vertical plate 63, and the lower end surfaces of the third reinforcing plate and the fourth vertical plate are fixedly connected to the fifth bottom plate 61. Referring to fig. 17 and 18, the rib plate III 71 and the rib plate III 72 are arc-shaped plates, the side edge of the rib plate III 71 is fixedly connected with the outer side face of the rib plate III 69, and the bottom end of the rib plate III is fixedly connected with the bottom plate V61; the side edge of the rib plate III 72 is fixedly connected with the outer side face of the reinforcing plate III 70, and the bottom end of the rib plate III is fixedly connected with the bottom plate V61. Referring to fig. 17 and 18, the rib plate four 73 and the rib plate four 74 are arc-shaped plates, the lower ends of the rib plates are fixed on the bottom plate five 61, the rib plates are close to the extension part four, and the side surfaces of the rib plates are respectively fixedly connected with the outer side surfaces of the vertical plate four 62 and the vertical plate four 63. Rib three 71, rib three 72, rib four 73 and rib four 74 are used to increase the local stiffness and strength of the turntable. With reference to figure 16 of the drawings,vertical distance H between center of five upper hinge point holes 60' and center of five lower hinge point holes 701The distance H from the center of the upper hinge point hole five 60' to the lower end surface of the bottom plate five 610Equal, i.e.: the center of the lower hinge point hole of the rotary table is flush with the bottom plate.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A rotary table is characterized by comprising a bottom plate and two groups of vertical plates;
the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole; the vertical plate is fixedly connected with the bottom plate;
the upper hinge point hole is hinged with an arm support of the engineering machinery;
the lower hinge point hole is hinged with a variable amplitude oil cylinder of the engineering machinery;
the amplitude variation oil cylinder of the engineering machinery is hinged with an arm support of the engineering machinery;
the vertical distance from the center of the upper hinge point hole to the center of the lower hinge point hole is not less than the distance from the center of the upper hinge point hole to the lower end surface of the bottom plate.
2. A turntable as claimed in claim 1,
the bottom plate is horizontally arranged, and an oil cylinder through hole I is formed in the central axis of the bottom plate;
the amplitude-variable oil cylinder penetrates through the first oil cylinder through hole;
the vertical plate comprises a first upper vertical plate and a first lower vertical plate;
the first upper vertical plates are vertically arranged, are parallel to each other, are fixedly connected with the bottom plate and are positioned on two sides of the first oil cylinder through hole; an upper hinge point hole is formed in the upper part of the upper vertical plate;
the upper hinge point hole is positioned above the bottom plate;
the first lower vertical plates are vertically arranged, are parallel to each other, are fixedly connected with the bottom plate and are positioned on two sides of the first oil cylinder through hole; a lower hinge point hole is formed in the lower part of the lower vertical plate;
the lower hinge point hole is positioned below the bottom plate.
3. A turntable as claimed in claim 1,
the bottom plate is horizontally arranged and is provided with an oil cylinder through hole II;
the oil cylinder through hole II is cross-shaped or T-shaped and comprises a first passing part positioned at the central axis of the bottom plate and first connecting parts which are perpendicular to the first passing part and positioned at two sides of the first passing part;
the amplitude-variable oil cylinder penetrates through the first passing part;
the vertical plate comprises an upper vertical plate II and a lower vertical plate II;
the two upper vertical plates are parallel to each other, fixedly connected with the bottom plate and positioned on two sides of the first passing part; the upper part of the upper vertical plate II is provided with an upper hinge point hole;
the upper hinge point hole is positioned above the bottom plate;
the two lower vertical plates II are parallel to each other and fixedly connected with the first connecting part; a lower hinge point hole is formed in the second lower vertical plate;
the center of the lower hinge point hole is as high as the lower end surface of the bottom plate.
4. A turntable as claimed in claim 1,
the bottom plate is horizontally arranged, and one end of the bottom plate is provided with a first extending part;
the first extending parts are arranged in an axisymmetric mode by taking the central axis of the bottom plate as an axis;
the vertical plate comprises a third upper vertical plate and a third lower vertical plate;
the three upper vertical plates are vertically arranged, and the two three upper vertical plates are parallel to each other, are fixedly connected with the bottom plate and are positioned on two sides of the central axis; the upper part of the upper vertical plate III is provided with an upper hinge point hole;
the upper hinge point hole is positioned above the bottom plate;
the third lower vertical plates are vertically arranged, and the two third lower vertical plates are parallel to each other, fixedly connected with the first extension part and positioned on two sides of the central axis; a lower hinge point hole is formed in the third lower vertical plate;
the lower hinge point hole is positioned below the bottom plate or the center of the lower hinge point hole is as high as the lower end surface of the bottom plate.
5. A turntable as claimed in claim 1,
the bottom plate is horizontally arranged, and an oil cylinder through hole III is formed in the central axis of the bottom plate;
the amplitude-variable oil cylinder penetrates through the oil cylinder through hole III;
the vertical plates are integrally formed and vertically arranged, and the two groups of vertical plates are parallel to each other, extend from the upper part of the bottom plate to the lower part of the bottom plate, are fixedly connected with the bottom plate and are positioned at two sides of the oil cylinder through hole III; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole;
the upper hinge point hole is positioned above the bottom plate;
the lower hinge point hole is positioned below the bottom plate.
6. A turntable as claimed in claim 1,
the bottom plate is horizontally arranged and is provided with an oil cylinder through hole IV;
the oil cylinder through hole IV is cross-shaped or T-shaped and comprises a second passing part positioned at the central axis of the bottom plate and second connecting parts which are perpendicular to the second passing part and positioned at two sides of the second passing part;
the amplitude-variable oil cylinder penetrates through the second passing part;
the vertical plates are integrally formed and vertically arranged, extend from the upper part of the bottom plate to the lower part of the bottom plate, and are parallel to each other and fixed on the bottom plate; the lower part of the vertical plate is fixedly connected with the second connecting part; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole;
the upper hinge point hole is positioned above the bottom plate;
the center of the lower hinge point hole is as high as the lower end surface of the bottom plate.
7. A turntable as claimed in claim 1,
the bottom plate is horizontally arranged, and one end of the bottom plate is provided with a second extending part;
the second extending part is arranged in an axisymmetric manner by taking the central axis of the bottom plate as an axis;
the vertical plates are integrally formed and vertically arranged and extend from the upper part of the bottom plate to the lower part of the bottom plate, the two groups of vertical plates are parallel to each other and are fixed on the bottom plate, and the lower parts of the vertical plates are fixedly connected with the second extending parts; the upper part of the vertical plate is provided with an upper hinge point hole, and the lower part of the vertical plate is provided with a lower hinge point hole;
the upper hinge point hole is positioned above the bottom plate;
the lower hinge point hole is positioned below the bottom plate or the center of the lower hinge point hole is as high as the lower end surface of the bottom plate.
8. The turntable according to claim 1, wherein the joint between the vertical plate and the bottom plate is provided with a bevel.
9. A turntable as claimed in claim 1, further comprising a stabilizing member; the stabilizing piece is used for improving the connecting strength of the vertical plate and the bottom plate.
10. A construction machine comprising the turntable according to any one of claims 1 to 9.
CN202111079530.6A 2021-09-15 2021-09-15 Rotary table and engineering machinery Pending CN113860194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111079530.6A CN113860194A (en) 2021-09-15 2021-09-15 Rotary table and engineering machinery

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Application Number Priority Date Filing Date Title
CN202111079530.6A CN113860194A (en) 2021-09-15 2021-09-15 Rotary table and engineering machinery

Publications (1)

Publication Number Publication Date
CN113860194A true CN113860194A (en) 2021-12-31

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Family Applications (1)

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Country Link
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102733611A (en) * 2012-07-16 2012-10-17 三一重工股份有限公司 Rotary cloth mechanism and concrete pump car
CN202575782U (en) * 2012-03-31 2012-12-05 常州市瑞泰工程机械有限公司 Mechanism for leveling engineering machine
CN204282832U (en) * 2014-11-25 2015-04-22 三一汽车制造有限公司 A kind of engineering machinery and turntable thereof
CN105819346A (en) * 2016-06-15 2016-08-03 江苏振东港口机械制造有限公司 Balance crane with parallel four-bar mechanism
WO2016146835A1 (en) * 2015-03-19 2016-09-22 Schwing Gmbh Fifth wheel for a large manipulator
CN213679544U (en) * 2020-11-03 2021-07-13 辽宁威跃集团机械制造有限公司 Crawler-type both arms hoisting accessory

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202575782U (en) * 2012-03-31 2012-12-05 常州市瑞泰工程机械有限公司 Mechanism for leveling engineering machine
CN102733611A (en) * 2012-07-16 2012-10-17 三一重工股份有限公司 Rotary cloth mechanism and concrete pump car
CN204282832U (en) * 2014-11-25 2015-04-22 三一汽车制造有限公司 A kind of engineering machinery and turntable thereof
WO2016146835A1 (en) * 2015-03-19 2016-09-22 Schwing Gmbh Fifth wheel for a large manipulator
CN105819346A (en) * 2016-06-15 2016-08-03 江苏振东港口机械制造有限公司 Balance crane with parallel four-bar mechanism
CN213679544U (en) * 2020-11-03 2021-07-13 辽宁威跃集团机械制造有限公司 Crawler-type both arms hoisting accessory

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Application publication date: 20211231