CN112173998A - Rotary table and crawler crane - Google Patents
Rotary table and crawler crane Download PDFInfo
- Publication number
- CN112173998A CN112173998A CN202011199631.2A CN202011199631A CN112173998A CN 112173998 A CN112173998 A CN 112173998A CN 202011199631 A CN202011199631 A CN 202011199631A CN 112173998 A CN112173998 A CN 112173998A
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- China
- Prior art keywords
- truss
- plate
- turntable
- belly
- girder
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Classifications
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a rotary table and a crawler crane, and relates to the technical field of engineering machinery. The invention solves the technical problems of more design workload, low material utilization rate and low bearing capacity of the rotary table welded by using the plate as the main material, and achieves the purpose of using the truss structure to replace the plate structure as the main stress structure of the rotary table.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a rotary table and a crawler crane.
Background
The crawler crane is a truss arm type lifting device capable of adjusting lifting height and amplitude. The hydraulic platform mainly comprises a working mechanism, a truss arm, a rotary table and a chassis, wherein the rotary table is a platform for bearing the main components of the working mechanism, a power mechanism, a hydraulic mechanism and the like.
At present, crawler crane's revolving stage is assembled the welding by panel and partial section bar and forms, because the load that each part of panel bore is different, the structural style and the thick meeting of different parts are different, consequently, use panel as the main material of revolving stage, can increase the work load of design on the one hand, on the other hand is because the more material utilization ratio that can lead to of panel kind is lower, and for arranging hydraulic pressure electric pipeline, often need trompil on main bearing plate, thereby can destroy the stress structure of whole board, and trompil department stress concentration, can reduce the bearing capacity of whole revolving stage to a certain extent.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a rotary table and a crawler crane, which are used for relieving the technical problems of large design workload, low material utilization rate and low bearing capacity of the rotary table welded by taking plates as main materials in the related technology.
In order to solve the technical problems, the technical means adopted by the invention are as follows:
the present invention provides a turntable comprising: a truss;
the two ends of the truss are respectively connected with a front sealing plate and a rear sealing plate, the side face of the truss is connected with a bottom plate, the side face of the truss, far away from the bottom plate, is connected with an upper vertical plate and a rear transverse plate, and the rear transverse plate is located between the upper vertical plate and the rear sealing plate.
As a further technical solution, the truss includes a first truss and a second truss, and the first truss and the second truss are parallel to each other;
the upper vertical plates are arranged at the corresponding positions of the first truss and the second truss respectively.
As a further technical solution, the first truss and the second truss each include an oblique web pipe, a straight web pipe, and two main chord pipes parallel to each other;
the inclined belly pipe and the straight belly pipe are located between the two main chord pipes and are connected with the two main chord pipes respectively.
As a further technical solution, in the first truss and the second truss, the pitch between the adjacent straight belly pipes is different, and the pitch between the adjacent diagonal belly pipes having the same inclination direction is different.
As a further technical scheme, the inclined belly pipe and the straight belly pipe are connected with the main chord pipe in a welding mode.
As a further technical scheme, a cross beam is connected between the first truss and the second truss, and the cross beam is close to the upper vertical plate.
As a further technical scheme, the first truss, the second truss and the cross beam are all made of steel pipes.
As a further technical solution, a steel pipe is connected between the first truss and the second truss.
As a further technical scheme, a connecting piece is connected between the two upper vertical plates.
The crawler crane provided by the invention comprises the rotary table.
Compared with the prior art, the turntable and the crawler crane provided by the invention have the technical advantages that:
the turntable provided by the invention comprises a truss, wherein the two ends of the truss are respectively connected with a front sealing plate and a rear sealing plate, the side surface of the truss is connected with a bottom plate, the side surface of the truss, which is far away from the bottom plate, is connected with an upper vertical plate and a rear transverse plate, and the rear transverse plate is positioned between the upper vertical plate and the rear sealing plate.
The turntable and the crawler crane provided by the invention have the advantages that:
in this application, preceding shrouding, back shrouding, base, last riser and back diaphragm all connect in the truss, and the truss becomes main atress mechanism as the girder of revolving stage to the function's of whole revolving stage is guaranteed to be complete. Specifically, compare in panel, the primary structure of revolving stage adopts the truss, and the designer needn't consider the board of the different positions of revolving stage again thick to reduced the design work load of revolving stage structure, improved material utilization, the panel of the different positions of considering the revolving stage moreover is assembled the welding and forms, and it is great to lead to the welding volume, and welding quality is influencing the life of revolving stage, and this application has avoided the production of this problem, has prolonged the life of revolving stage to a certain extent. Besides, the truss structure does not need to be perforated when the hydraulic electric pipelines are arranged, so that stress concentration at the perforated part is avoided, and the bearing capacity of the rotary table is ensured.
The crawler crane provided by the invention comprises the rotary table, so that the technical advantages achieved by the crawler crane comprise the technical advantages and effects achieved by the rotary table, and the detailed description is omitted.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic overall structure diagram of a first view angle of a turntable according to an embodiment of the present invention;
fig. 2 is a schematic overall structure diagram of a second view angle of the turntable according to the embodiment of the present invention;
fig. 3 is a schematic overall structural diagram of a first truss of a turntable according to an embodiment of the present invention.
Icon:
100-truss; 110-a first truss; 111-oblique abdominal tube; 112-straight abdominal tube; 113-main chord tube; 120-a second truss;
200-front closing plate; 210-a front riser;
300-rear sealing plate; 310-hanging ears;
400-a base plate; 500-seat ring; 600-an upper vertical plate; 700-rear transverse plate; 800-beam.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The revolving stage that this embodiment provided includes truss 100, and the both ends of truss 100 are connected with preceding shrouding 200 and back shrouding 300 respectively, and the side of truss 100 is connected with bottom plate 400, and the side of keeping away from bottom plate 400 of truss 100 is connected with riser 600 and back diaphragm 700, and back diaphragm 700 is located between riser 600 and the back shrouding 300.
In this embodiment, referring to fig. 1, the left end of the truss 100 is connected to the front sealing plate 200, the right end of the truss 100 is connected to the rear sealing plate 300, the upper vertical plate 600 and the rear horizontal plate 700 are connected to the upper surface of the truss 100, and the position of the rear horizontal plate 700 on the truss 100 is closer to the rear sealing plate 300 than the upper vertical plate 600. Specifically, the front vertical plate 210 is arranged on the front sealing plate 200, the rotary table is connected with the arm support through the front vertical plate 210, the rear sealing plate 300 is provided with the hanging lug 310, the rotary table is connected with the balance weight through the hanging lug 310, the bottom plate 400 serves as a mounting plate for mounting the slewing bearing, the seat ring 500 on the bottom plate 400 is used for mounting the slewing reducer, the upper vertical plate 600 serves as the mounting plate, a through hole with a triangular connecting line is formed in the upper vertical plate 600, the through hole in the upper position close to the upper vertical plate 600 is used for connecting the a-type frame, the through hole in the lower position close to the upper vertical plate 600 is used for connecting the hoisting winch. In this application, preceding shrouding 200, back shrouding 300, base, riser 600 and back diaphragm 700 all connect in truss 100, and truss 100 becomes main stress structure as the girder of revolving stage. Compare in panel, the primary structure of revolving stage adopts truss 100, and the designer needn't consider the board of the different positions of revolving stage again thick to reduced the design work load of revolving stage structure, improved material utilization, the panel of the different positions of considering the revolving stage moreover is assembled the welding and forms, leads to the welding volume great, and welding quality is influencing the life of revolving stage, and the production of this problem has been avoided in this application, has prolonged the life of revolving stage to a certain extent. In addition to the above, the truss 100 structure does not need to be perforated when arranging the hydraulic and electric pipelines, so that stress concentration at the perforated part is avoided, and the bearing capacity of the turntable is ensured.
In an optional technical solution of this embodiment, the truss 100 includes a first truss 110 and a second truss 120, the first truss 110 and the second truss 120 are parallel to each other, and the corresponding positions of the first truss 110 and the second truss 120 are respectively provided with an upper vertical plate 600.
Specifically, as shown in fig. 2, the left ends of the first truss 110 and the second truss 120 are connected to the rear sealing plate 300, the right ends of the first truss 110 and the second truss 120 are connected to the front sealing plate 200, the base is located at the bottom ends of the first truss 110 and the second truss 120 and is connected to the first truss 110 and the second truss 120, the two upper vertical plates 600 are located at the upper portions of the trusses 100 and are connected to the first truss 110 and the second truss 120, and the rear horizontal plate 700 is located at the upper portions of the trusses 100 and is connected to the first truss 110 and the second truss 120, wherein the front sealing plate 200, the rear sealing plate 300, the base, and the rear horizontal plate 700 serve as an installation structure and also serve as a connection for the first truss 110 and the second truss 120. In this embodiment, the first truss 110 and the second truss 120 are used as main beams of the turntable, and are structurally connected to the front sealing plate 200, the rear sealing plate 300, the upper vertical plate 600, and the like, so that the functional integrity of the whole turntable is ensured, and the strength of the turntable is ensured to meet the application requirements.
In an optional technical solution of this embodiment, each of the first truss 110 and the second truss 120 includes an oblique web pipe 111, a straight web pipe 112, and two main chord pipes 113 parallel to each other, and the oblique web pipe 111 and the straight web pipe 112 are located between the two main chord pipes 113 and are respectively connected to the two main chord pipes 113.
Specifically, the first truss 110 and the second truss 120 have the same structure, and taking the first truss 110 as an example, as shown in fig. 3, two main chord pipes 113 parallel to each other are connected by an oblique web pipe 111 and a straight web pipe 112, so that the truss 100 as a whole becomes a hollow girder structure with high bearing capacity. Referring to fig. 1-2, the ends of the main chord 113 are respectively connected to the front closing plate 200 and the rear closing plate 300, and the sides of the main chord 113 are respectively connected to the base, the upper vertical plate 600 and the rear horizontal plate 700, so that one end of the main chord 113 is connected to the boom, the other end is connected to the counterweight, the side of the main chord 113 is connected to the slewing bearing, the slewing reducer and the winch, when the crane works, the first truss 110 and the second truss 120 formed by the connection of the inclined web pipe 111, the straight web pipe 112 and the main chord 113 become the main stress mechanisms, and the truss 100 is guaranteed to have the capacity of bearing load. Furthermore, the truss 100 is adopted to replace a plate, so that materials are saved, the processing and manufacturing cost of the rotary table is reduced, and the self weight of the rotary table is reduced.
In an alternative embodiment of the present invention, the first truss 110 and the second truss 120 have different pitches between the adjacent straight belly pipes 112 and different pitches between the adjacent diagonal belly pipes 111 having the same inclination direction.
In the present embodiment, as shown in fig. 3, the pitches of the adjacent straight belly pipes 112 are different, and the pitches of the adjacent diagonal belly pipes 111 having the same inclination direction are different, that is, the straight belly pipes 112 and the diagonal belly pipes 111 are not uniformly distributed between the two main chords 113, and the distribution of the two main chords 113 is different in density at different positions. Specifically, the straight abdominal pipes 112 and the inclined abdominal pipes 111 of the first truss 110 and the second truss 120 are sparsely distributed at the positions with smaller stress, the number of the straight abdominal pipes 112 and the inclined abdominal pipes 111 is smaller, the straight abdominal pipes 112 and the inclined abdominal pipes 111 of the first truss 110 and the second truss 120 are densely distributed at the positions with larger stress, and the number of the straight abdominal pipes 112 and the inclined abdominal pipes 111 is larger, so that each part of the truss 100 is matched with the stress condition of the part, compared with the method of changing the plate thicknesses at different positions of the turntable to adapt to different loads, the embodiment reduces the design workload of related personnel, simplifies the complexity of the turntable to a certain extent, and plays the same role of changing the thickness of the plate by changing the number of the straight abdominal pipes 112 and the inclined abdominal pipes 111. Further, the angle of the oblique belly pipe 111 between the two main chords 113 depends on the force applied to the oblique belly pipe 111.
In an optional technical scheme of this embodiment, both the oblique belly pipe 111 and the straight belly pipe 112 are connected with the main chord pipe 113 by welding.
Specifically, taking the first truss 110 as an example, referring to fig. 3, a plurality of diagonal web pipes 111 and straight web pipes 112 are provided between two main chords 113, both ends of the diagonal web pipes 111 are respectively welded to the circular side surfaces of the main chords 113, and both ends of the straight web pipes 112 are respectively welded to the circular side surfaces of the main chords 113. According to the above mentioned main stress structure of the turntable, when the main stress structure is a plate, the thicknesses of different positions of the plate are different, and the different plate thicknesses are formed by splicing and welding the plates with different specifications, that is, the utilization rate of the material of the turntable manufactured by using the plate as the main stress structure is low, and the welding amount between the plates with different specifications is large, so that the service life of the turntable is obviously influenced.
In an optional technical solution of this embodiment, a cross beam 800 is connected between the first truss 110 and the second truss 120, and the cross beam 800 is close to the upper vertical plate 600.
Specifically, referring to fig. 1 or 2, the cross beam 800 is located right below the upper vertical plate 600, and plays a role in connecting the first truss 110 and the second truss 120. The upper vertical plate 600 above the cross beam 800 is used for installing an a-frame and a lifting winch, when the crane is in operation, due to the presence of the a-frame and the lifting winch, the truss 100 at the position is subjected to a large load, at this time, the cross beam 800 plays a role in supporting the truss 100, and the oblique abdominal pipes 111 and the straight abdominal pipes 112 in the first truss 110 and the second truss 120 at the position are distributed densely, so that the bearing capacity at the position is ensured to be sufficient.
In an optional technical solution of this embodiment, the first truss 110, the second truss 120, and the cross beam 800 are all made of steel pipes.
Specifically, the inclined belly pipe 111, the straight belly pipe 112, the main chord pipe 113 and the cross beam 800 are all made of steel pipes, so that the manufactured truss 100 improves the overall rigidity and strength of the rotary table, and further reduces the manufacturing cost of the rotary table relative to plates.
In an optional technical solution of this embodiment, a steel pipe is connected between the first truss 110 and the second truss 120.
Specifically, in the present application, the front sealing plate 200, the rear sealing plate 300, the bottom plate 400, the rear cross plate 700 and the cross beam 800 all play a role in connecting the first truss 110 and the second truss 120, but this is not a main role thereof, such as the bottom plate 400, which is mainly used for installing a slewing bearing and carrying a slewing reducer, such as the rear cross plate 700, which is mainly used for installing a luffing winch. In this embodiment, the steel pipe is mainly used to connect the first truss 110 and the second truss 120, so that the truss 100 formed by the two can be stably connected with the front sealing plate 200, the rear sealing plate 300, the bottom plate 400 and the like as the main beam of the turntable, the functional integrity of the whole turntable is ensured, and the strength of the whole turntable is ensured to be sufficient.
In an optional technical solution of this embodiment, a connecting member is connected between the two upper vertical plates 600.
Specifically, as shown in fig. 1 or fig. 2, a connecting member is connected between the two upper vertical plates 600, and the connecting member is located right below the through hole for installing the a-shaped frame, and plays a role in supporting and connecting the upper vertical plates 600. It should be noted that the connecting member may be a steel pipe, and two ends of the steel pipe are respectively welded to the upper vertical plate 600, or an angle iron, or other members capable of supporting and connecting.
The crawler crane provided by the embodiment comprises the rotary table, and therefore the technical advantages achieved by the crawler crane comprise the technical advantages and effects achieved by the rotary table, and are not repeated herein.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein, and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (10)
1. A turntable, comprising: a truss (100);
the two ends of the truss (100) are respectively connected with a front sealing plate (200) and a rear sealing plate (300), the side face of the truss (100) is connected with a bottom plate (400), the side face, far away from the bottom plate (400), of the truss (100) is connected with an upper vertical plate (600) and a rear transverse plate (700), and the rear transverse plate (700) is located between the upper vertical plate (600) and the rear sealing plate (300).
2. Turntable as claimed in claim 1, characterized in that the girder (100) comprises a first girder (110) and a second girder (120), the first girder (110) and the second girder (120) being parallel to each other;
the upper vertical plates (600) are respectively arranged at the corresponding positions of the first truss (110) and the second truss (120).
3. Turntable as claimed in claim 2, characterized in that the first truss (110) and the second truss (120) each comprise a diagonal web pipe (111), a straight web pipe (112) and two mutually parallel main chords (113);
the inclined belly pipe (111) and the straight belly pipe (112) are located between the two main chords (113) and are respectively connected with the two main chords (113).
4. Turntable as claimed in claim 3, characterized in that in the first truss (110) and the second truss (120) there is a difference in the spacing of adjacent straight belly tubes (112) and a difference in the spacing of adjacent diagonal belly tubes (111) having the same inclination direction.
5. Turntable as claimed in claim 3, characterized in that said belly tube (111) and said belly tube (112) are each connected to said main chord (113) by means of welding.
6. Turntable according to claim 2, characterized in that a cross beam (800) is connected between the first truss (110) and the second truss (120), the cross beam (800) being close to the upper riser (600).
7. Turntable according to claim 6, characterized in that the first girder (110), the second girder (120) and the cross beam (800) are all made of steel tubes.
8. Turntable according to claim 7, characterized in that a steel tube is connected between the first truss (110) and the second truss (120).
9. Turntable according to claim 2, characterized in that a connection is connected between two of said upper risers (600).
10. A crawler crane comprising a turntable according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011199631.2A CN112173998A (en) | 2020-10-30 | 2020-10-30 | Rotary table and crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011199631.2A CN112173998A (en) | 2020-10-30 | 2020-10-30 | Rotary table and crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112173998A true CN112173998A (en) | 2021-01-05 |
Family
ID=73916956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011199631.2A Pending CN112173998A (en) | 2020-10-30 | 2020-10-30 | Rotary table and crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112173998A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116891123A (en) * | 2023-09-11 | 2023-10-17 | 山西建投建筑产业有限公司 | Semi-automatic conveying equipment for conveying plates |
-
2020
- 2020-10-30 CN CN202011199631.2A patent/CN112173998A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116891123A (en) * | 2023-09-11 | 2023-10-17 | 山西建投建筑产业有限公司 | Semi-automatic conveying equipment for conveying plates |
| CN116891123B (en) * | 2023-09-11 | 2023-11-28 | 山西建投建筑产业有限公司 | Semi-automatic conveying equipment for conveying plates |
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