CN204282832U - A kind of engineering machinery and turntable thereof - Google Patents
A kind of engineering machinery and turntable thereof Download PDFInfo
- Publication number
- CN204282832U CN204282832U CN201420713778.2U CN201420713778U CN204282832U CN 204282832 U CN204282832 U CN 204282832U CN 201420713778 U CN201420713778 U CN 201420713778U CN 204282832 U CN204282832 U CN 204282832U
- Authority
- CN
- China
- Prior art keywords
- engineering machinery
- turntable
- riser
- base plate
- vertical portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of engineering machinery and turntable thereof.This turntable comprises base plate, be fixed on riser on described base plate and rear shrouding, described riser is provided with jib hinge hole and amplitude oil cylinder hinge hole, described rear shrouding is positioned at described riser rear portion, described rear shrouding comprises vertical portion and layback portion, the bottom of described vertical portion is fixed on described base plate, and described layback portion is positioned at above described vertical portion.Rear shrouding of the present utility model adopts upper and lower hierarchy, turntable tension side effectively can be avoided because of the stressed excessive and fault causing turntable to ftracture of weld seam, improve the integral rigidity of turntable.
Description
Technical field
The utility model relates generally to slew gear and technical field of engineering machinery, specifically, relates to a kind of engineering machinery turntable, and is provided with the engineering machinery of this turntable.
Background technology
For the engineering machinery that such as concrete mixer, boom etc. need to turn round operation, turntable is its important component part.Usually, the top of turntable and the end of jib hinged, the bottom of turntable is fixed by bolt or screw and pivoting support, and pivoting support is then installed on fixing capstan head.
When turning round operation, turntable and pivoting support turn round in the horizontal plane relative to fixing capstan head under driving mechanism drives, thus arm support tail end can be made in diverse location operation.In addition, turntable also can install jib lubbing mechanism, the end of this jib lubbing mechanism is articulated with on jib, by its flexible angle of pitch that can change jib.
In prior art, distinguish according to the position at first segment arm hinge hole and rotation of rotary table center, turntable can be divided into non-layback type and layback type structure.For non-layback type turntable, it is better stressed, but not high to car load space availability ratio, cannot arrange more long-armed frame under same case; And for layback board-type turntable, shrouding place weld stress and bolt force have sudden change thereafter, unfavorable in overall structure reliability; In addition, for layback circular arc type turntable, need bolt installing space and turntable stressed between make balance, often the two all can not well be met.
The future development of the most long ratio of foot bridge of existing concrete pump truck forward, namely jib is more and more longer, and chassis used is but more and more compacter, and the use of turntable of swinging back in the case becomes normality.But compact arrangement, what often bring is an increasing turret design difficult problem.Due to rear shrouding and riser, the direct welding of base plate, the stress of three intersection and bolt force is caused all to occur sudden change, especially for large model pump truck, turntable often occurs that left and right is eccentric and front and back are eccentric, is difficult to be optimized to meet design requirement completely herein simultaneously.
Therefore, for layback type turntable structure, how under the prerequisite improving car load space availability ratio, solving the stress and bolt force sudden change that exist in turntable structure, is those skilled in the art's technical problems urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of engineering machinery turntable, and the defect of suddenling change appears in the stress of shrouding after can solving in prior art, riser and base plate three intersection and bolt force.
Engineering machinery turntable of the present utility model, comprise base plate, be fixed on riser on described base plate and rear shrouding, described riser is provided with jib hinge hole and amplitude oil cylinder hinge hole, described rear shrouding is positioned at described riser rear portion, described rear shrouding comprises vertical portion and layback portion, the bottom of described vertical portion is vertically fixed on described base plate, and described layback portion is positioned at above described vertical portion.
Further, described engineering machinery turntable also comprises the bending plate of L-type, and the front side of described rear shrouding is fixed in one end of described bending plate, and the other end is fixed on described base plate.
Further, the quantity of described riser is two pieces, and described bending plate is between two pieces of risers, and two pieces of risers, bending plate, rear shrouding and base plates form box structure jointly.
Further, described vertical portion is that the rear portion of described riser surrounds by circular arc type.
Further, described layback portion is provided with perforate.
Further, described engineering machinery turntable also comprises the front shrouding being fixed on described riser front portion.
Further, described vertical portion and described layback portion are integrally formed.
Further, between described vertical portion and described layback portion, split is formed, and is welded to each other fixing.
Another aspect of the present utility model, a kind of engineering machinery is also provided, this project machinery comprises jib, amplitude oil cylinder and pivoting support, and comprise the engineering machinery turntable of aforementioned any one, the end of described jib is arranged at the jib hinge hole on described riser, one end of described amplitude oil cylinder is arranged at the amplitude oil cylinder hinge hole on described riser, and the other end is arranged on described jib, and described base plate is connected with described pivoting support bolt.
Further, described engineering machinery is specially concrete mixer, crane or fire fighting truck.
Engineering machinery of the present utility model and turntable thereof, the rear shrouding being fixed on riser rear portion comprises vertical portion and layback portion, the bottom of described vertical portion is vertically fixed on described base plate, described layback portion is positioned at above described vertical portion, namely this rear shrouding adopts upper and lower hierarchy, turntable tension side effectively can be avoided because of the stressed excessive and fault causing turntable to ftracture of weld seam, improve the integral rigidity of turntable.
In further technical scheme, the utility model also comprises the bending plate of L-type, the front side of described rear shrouding is fixed in one end of described bending plate, the other end is fixed on described base plate, this bending plate and rear shrouding, riser, can form box structure between base plate, further increase structural reliability and integral rigidity, be conducive to increasing offset, solve the turntable arrangement difficulty in overlength jib design object.
In addition, after the utility model, the rear portion of riser preferably surrounds in circular arc type by the vertical portion of shrouding, the problem of the bolt installing space deficiency that prior art layback structure can be avoided to bring, this arc structure also can improve the sudden change of bolt force effectively, improves application life and the functional reliability of bolt.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the three-dimensional structure diagram of the engineering machinery turntable of the utility model one embodiment;
Fig. 2 is the three-dimensional structure diagram of engineering machinery turntable in another orientation embodiment illustrated in fig. 1;
Fig. 3 is the side direction view of engineering machinery turntable embodiment illustrated in fig. 1;
Fig. 4 is the three-dimensional structure diagram of the engineering machinery turntable of another embodiment of the utility model;
Fig. 5 is the side direction view of engineering machinery turntable embodiment illustrated in fig. 4.
Description of reference numerals is as follows:
1 base plate
2 risers
Shrouding after 3
31 vertical portions
32 layback portions
Shrouding before 4
5 bending plates
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Fig. 1-Fig. 3 is the structural representation of the engineering machinery turntable of the utility model one embodiment, and wherein Fig. 1 and Fig. 2 is the stereochemical structure view in different azimuth, and Fig. 3 is side direction view.The engineering machinery turntable of this embodiment is used in the slew gear of engineering machinery, the top of turntable and the end of jib hinged, the bottom of turntable is fixed by bolt or screw and pivoting support, and pivoting support is then installed on fixing capstan head.When turning round operation, turntable and pivoting support turn round in the horizontal plane relative to fixing capstan head under driving mechanism drives.
The engineering machinery turntable of this embodiment at least comprises base plate 1, riser 2 and rear shrouding 3.Wherein riser 2 is provided with jib hinge hole and amplitude oil cylinder hinge hole, rear shrouding 3 is fixed on riser 2 rear portion, and the position of jib hinge hole and amplitude oil cylinder hinge hole can be selected according to design, and usual two hinge holes lay respectively at the upper and lower of riser.That in Fig. 3, direction, the right is " afterwards ", and its contrary direction is " front " before and after the utility model indication for the installation site of riser 2.The structure of base plate 1, riser 2 can with reference to technology that is existing and that improve.
Shrouding and riser, the direct welding of base plate (program can cause the stress of three intersection and bolt force to be suddenlyd change) after being different from prior art, the rear shrouding 3 of this embodiment of the utility model comprises vertical portion 31 and layback portion 32, the bottom of vertical portion 31 is fixed on base plate 1, and layback portion 32 is positioned at above vertical portion 31.The bottom of vertical portion 31 is preferably welded on base plate 1, and direct welding the with riser 2 rear portion can be avoided in this vertical portion 31.This vertical portion 31 and base plate 1 are mutually vertical, should be clear, and vertically yes comprises the vertical of foozle scope for this.
Show according to research, when vertical portion 31 is vertical with base plate 1, its tensile zone weld stress is minimum, and namely scheme is optimum, takes second place, for stressed the poorest during obtuse angle if stressed when angle is therebetween acute angle.Thus, previous embodiment can improve the stressing conditions of weld seam between riser 2 and rear shrouding 3 greatly.In addition, rear shrouding 3, owing to adopting upper and lower hierarchy, avoids the direct power transmission of layback portion 32 and base plate 1, turntable tension side also effectively can be avoided because of the stressed excessive and fault that causes turntable to ftracture of weld seam, improve the integral rigidity of turntable.
Further, the engineering machinery turntable of this embodiment also comprises the bending plate 5 of L-type, and the front side of rear shrouding 3 is fixed in one end of bending plate 5, and the other end is fixed on base plate 1.This bending plate 5 and rear shrouding 3, riser 2, can form box structure between base plate 1, further increases structural reliability and integral rigidity, is conducive to increasing offset, solve the turntable arrangement difficulty in overlength jib design object.
The quantity of preferred riser 2 is two pieces, and bending plate 5 is between two pieces of risers 2, and two pieces of risers 2, bending plate 5, rear shrouding 3 and base plates 1 form box structure jointly, and the box structure formed is more solid and reliable.
This vertical portion 31 can be multiple possibility structure, as long as can realize technique effect of the present utility model with base plate 1 is mutually vertical.The rear portion of riser 2 surrounds in circular arc type by preferred vertical portion 31, owing to there is no sudden change in shape, the problem of the bolt installing space deficiency that prior art layback structure thus can be avoided to bring, this arc structure also can improve the sudden change of bolt force effectively, improves application life and the functional reliability of bolt.
In addition, the layback portion 32 of aforementioned rear shrouding 3 also can be provided with perforate, this perforate can realize integrally-built loss of weight on the one hand, is also convenient to the layout of the pipelines such as hydraulic pressure on the other hand.Shrouding 4 before riser 2 front portion is also fixed with, this front shrouding 4 also can improve the integral rigidity of turntable.
Fig. 4 and Fig. 5 is the structural representation of the engineering machinery turntable of another embodiment of the utility model, and wherein Fig. 4 is three-dimensional view, and Fig. 5 is side direction view.The engineering machinery turntable of this embodiment also comprises the structures such as base plate 1, riser 2 and rear shrouding 3, and rear shrouding 3 comprises vertical portion 31 and layback portion 32 equally, and the structure of each several part can with reference to aforementioned explanation.
Unlike, in the embodiment shown in Fig. 1-Fig. 3, between vertical portion 31 and layback portion 32, split is formed, and is welded to each other fixing; And in the embodiment shown in Fig. 4-Fig. 5, vertical portion 31 and layback portion 32 are integrally formed, technique effect of the present utility model can be realized equally.
Except the engineering machinery turntable of previous embodiment, the utility model also provides a kind of engineering machinery being provided with previous embodiment.This project machinery also comprises jib, amplitude oil cylinder and pivoting support, the end of jib is arranged at the jib hinge hole on riser 2, one end of amplitude oil cylinder is arranged at the amplitude oil cylinder hinge hole on riser 2, and the other end is arranged on jib, and base plate 1 is connected with pivoting support bolt.
This project machinery is more preferably concrete mixer, and other structures such as chassis, the pumping mechanism etc. of concrete mixer with reference to technology that is existing and that improve, because emphasis of the present utility model is not at this, can not repeat herein.Aforementioned turntable structure is particularly useful for the need of work of overlength arm rack concrete pump truck.Should be clear, this project machinery also can be the equipment as the use such as crane, fire fighting truck slew gear.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. an engineering machinery turntable, comprise base plate (1), be fixed on riser (2) on described base plate (1) and rear shrouding (3), described riser (2) is provided with jib hinge hole and amplitude oil cylinder hinge hole, described rear shrouding (3) is positioned at described riser (2) rear portion, it is characterized in that, described rear shrouding (3) comprises vertical portion (31) and layback portion (32), the bottom of described vertical portion (31) is vertically fixed on described base plate (1), and described layback portion (32) is positioned at top, described vertical portion (31).
2. engineering machinery turntable according to claim 1, it is characterized in that, described engineering machinery turntable also comprises the bending plate (5) of L-type, the front side of described rear shrouding (3) is fixed in one end of described bending plate (5), and the other end is fixed on described base plate (1).
3. engineering machinery turntable according to claim 2, it is characterized in that, the quantity of described riser (2) is two pieces, described bending plate (5) is positioned between two pieces of risers (2), and two pieces of risers (2), bending plate (5), rear shrouding (3) and base plates (1) form box structure jointly.
4. engineering machinery turntable according to claim 1, is characterized in that, the rear portion of described riser (2) surrounds in circular arc type by described vertical portion (31).
5. engineering machinery turntable according to claim 1, is characterized in that, described layback portion (32) is provided with perforate.
6. engineering machinery turntable according to claim 1, is characterized in that, described engineering machinery turntable also comprises the front shrouding (4) being fixed on described riser (2) front portion.
7. the engineering machinery turntable according to any one of claim 1-6, is characterized in that, described vertical portion (31) and described layback portion (32) are integrally formed.
8. the engineering machinery turntable according to any one of claim 1-6, is characterized in that, between described vertical portion (31) and described layback portion (32), split is formed, and is welded to each other fixing.
9. an engineering machinery, comprise jib, amplitude oil cylinder and pivoting support, it is characterized in that, also comprise the engineering machinery turntable described in any one of claim 1-8, the end of described jib is arranged at the jib hinge hole on described riser (2), one end of described amplitude oil cylinder is arranged at the amplitude oil cylinder hinge hole on described riser (2), and the other end is arranged on described jib, and described base plate (1) is connected with described pivoting support bolt.
10. engineering machinery according to claim 9, is characterized in that, described engineering machinery is specially concrete mixer, crane or fire fighting truck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420713778.2U CN204282832U (en) | 2014-11-25 | 2014-11-25 | A kind of engineering machinery and turntable thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420713778.2U CN204282832U (en) | 2014-11-25 | 2014-11-25 | A kind of engineering machinery and turntable thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204282832U true CN204282832U (en) | 2015-04-22 |
Family
ID=52866009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420713778.2U Active CN204282832U (en) | 2014-11-25 | 2014-11-25 | A kind of engineering machinery and turntable thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204282832U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860194A (en) * | 2021-09-15 | 2021-12-31 | 徐州徐工施维英机械有限公司 | Rotary table and engineering machinery |
| CN114517581A (en) * | 2020-11-18 | 2022-05-20 | 三一汽车制造有限公司 | Rotary table and working machine |
| CN114517582A (en) * | 2020-11-18 | 2022-05-20 | 三一汽车制造有限公司 | Working machine |
| WO2022105238A1 (en) * | 2020-11-18 | 2022-05-27 | 三一汽车制造有限公司 | Work machinery |
-
2014
- 2014-11-25 CN CN201420713778.2U patent/CN204282832U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517581A (en) * | 2020-11-18 | 2022-05-20 | 三一汽车制造有限公司 | Rotary table and working machine |
| CN114517582A (en) * | 2020-11-18 | 2022-05-20 | 三一汽车制造有限公司 | Working machine |
| WO2022105238A1 (en) * | 2020-11-18 | 2022-05-27 | 三一汽车制造有限公司 | Work machinery |
| WO2022105240A1 (en) * | 2020-11-18 | 2022-05-27 | 三一汽车制造有限公司 | Turntable and work machine |
| WO2022105239A1 (en) * | 2020-11-18 | 2022-05-27 | 三一汽车制造有限公司 | Work machine |
| CN113860194A (en) * | 2021-09-15 | 2021-12-31 | 徐州徐工施维英机械有限公司 | Rotary table and engineering machinery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204282832U (en) | A kind of engineering machinery and turntable thereof | |
| EP2639196B1 (en) | TOWER CRANE AND TIE ROD STRUCTURE of balance boom THEREOF, AND method for MOUNTING tie rod structure of balance boom | |
| WO2012009950A1 (en) | Transition structure for boom frame of crane | |
| KR100979429B1 (en) | upper frame of construction equipment | |
| CN103395707A (en) | Counterweight connection structure for rotary table | |
| CN203667862U (en) | Main body structure of rotary table and rotary table | |
| CN203373721U (en) | Propeller strut and dynamic compactor | |
| CN203529786U (en) | Quick-assembled and disassembled offshore crane | |
| CN202156888U (en) | Suspension arm supporting device and crane | |
| CN103508331B (en) | A kind of Fast-assembly/disassoffshorepe offshorepe crane | |
| CN203411262U (en) | Counterweight connecting structure for turntable | |
| CN204001765U (en) | A kind of jib, boom system and concrete distributing machinery | |
| CN210768869U (en) | Hydraulic support with plate welding spliced base column nest structure | |
| CN203947513U (en) | The cladding element mounting structure of excavator and excavator | |
| CN205046544U (en) | Ram horn frame device and strong machine that rams by force | |
| KR101425070B1 (en) | Shear | |
| CN202138417U (en) | Engineering truck and car frame assembly thereof | |
| CN201826867U (en) | Socket | |
| CN103061668B (en) | Sliding frame, power device and rotary drilling rig | |
| CN103086270A (en) | Flexible connecting and fixing structure and equalizing beam | |
| CN102748053A (en) | Top beam structure and hydraulic bracket | |
| CN201325438Y (en) | Outrigger structure and vehicle or equipment with same | |
| CN103267207A (en) | Hydraulic excavator seat plate fixing device | |
| CN204324761U (en) | A kind of one-board jib tip structure and crane arm | |
| CN104210969A (en) | Propeller strut and heavy tapping machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |