CN203160701U - Rotation mechanism and engineering machine - Google Patents
Rotation mechanism and engineering machine Download PDFInfo
- Publication number
- CN203160701U CN203160701U CN 201320090346 CN201320090346U CN203160701U CN 203160701 U CN203160701 U CN 203160701U CN 201320090346 CN201320090346 CN 201320090346 CN 201320090346 U CN201320090346 U CN 201320090346U CN 203160701 U CN203160701 U CN 203160701U
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- drive
- ring
- pivoting support
- slew gear
- chain
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Abstract
The utility model discloses a rotation mechanism and engineering machine and relates to the technical field of machinery. The rotation mechanism and the machine solve the technical problem in the prior art of low production and assembly efficiency caused by high machining and assembly requirements. The rotation mechanism comprises a first transmission wheel, a ring, a second transmission wheel and a transmission piece. The first transmission wheel and the second transmission wheel are movably connected with the ring and can rotate around the movable connection positions of the first transmission wheel and the second transmission wheel and the ring relative to the ring respectively. The transmission piece is a ring-shaped chain or a ring-shaped rope belt. The transmission piece is sleeved on the outsides of the first transmission wheel and the second transmission wheel, and the first transmission wheel can drive the second transmission wheel to rotate through the transmission piece. The engineering machine comprises the rotation mechanism. The production and assembly efficiency of the rotation mechanism can be improved.
Description
Technical field
The utility model relates to field of mechanical technique, the engineering machinery that is specifically related to a kind of slew gear and this slew gear is set.
Background technology
Concrete mixer is a kind of engineering machinery that concrete is transported to assigned address.Slew gear is a kind of mechanism that power is provided for the revolution of getting on the bus on the engineering machinery.
As Fig. 1～shown in Figure 2, existing slew gear is mainly by reductor, pinion 10(or pinion 10 and idle pulley 11) and pivoting support 6 form, pinion 10 is devices of output torque in slew gear.Pivoting support 6 is used for connecting goes up bassinet structure and following bassinet structure, and can realize the revolution of getting on the bus.
Arrangement according to slew gear in the prior art can be divided into following two kinds of different forms:
1, as shown in Figure 1, pinion 10 and pivoting support 6 engagements, its principle: provide power by the reductor motor, the output shaft 5 by reductor is delivered to pinion 10, and pinion 10 drives outer ring 61 revolutions of pivoting supports 6, thereby realizes going up the bassinet structure revolution.
2, as shown in Figure 2, increase idler mechanism between pinion 10 and the pivoting support 6, its principle: provide power by the reductor motor, output shaft 5 by reductor is delivered to pinion 10, the idle pulley 11 that pinion 10 drives in the idler mechanism, drive pivoting support 6 revolutions again by idler mechanism, thereby realize going up the bassinet structure revolution.
As Fig. 1～shown in Figure 2, there is following technical problem at least in prior art:
1, the mode of pinion 10 and pivoting support 6 engagements:
1., slew gear is assemblied in seat ring 3(or the title of rotary table: big seat ring), seat ring 3 is provided with for two installing holes that pivoting support 6 and reductor are installed, and the center to center distance of these two installing holes is had relatively high expectations, and causes the production efficiency of seat ring 3 lower.
2., existing slew gear rotary reducer pinion 10 when assembling guarantees that with the gear-pair backlash of pivoting support 6 is difficult efficiency of assembling is lower.
3., existing slew gear when work, pinion 10 is few with the number of teeth of pivoting support 6 engagements, and is very fast to 10 wearing and tearing of rotary reducer pinion, makes the maintenance cost of slew gear improve greatly.
2, increase the mode of two idle pulleys 11 between pinion 10 and the pivoting support 6
1., slew gear is assemblied in rotary table (or claim: on the seat ring 3 rotary table of getting off), seat ring 3 is provided with for two installing holes that pivoting support 6 and reductor are installed, and the center to center distance of these two installing holes is had relatively high expectations, and production efficiency is lower.
2., increase idler mechanism on the slew gear, component are more, and higher to processing request.The installation of two idle pulleys 11 is after integral installation is good in addition, joins to be welded on the seat ring 3, and efficiency of assembling is lower.
3., increase idler mechanism, structure is comparatively complicated, cost is higher, and is maintainable bad.
In sum, as Fig. 1～shown in Figure 2, existing engineering machinery is comparatively complicated with slew gear, and is higher to processing and matching requirements, causes producing with efficiency of assembling low.In addition, the wearing and tearing of pinion 10 are very fast, strengthened maintenance cost, and use the secondary sideshake of a period of time backgear to increase, and it is bigger to cause the jib of getting on the bus to rock.
The utility model content
The purpose of this utility model is the engineering machinery that proposes a kind of slew gear and this slew gear is set, and has solved prior art and has existed processing and matching requirements higher, causes producing the technical problem low with efficiency of assembling.In addition, the optimal technical scheme that provides of the utility model also has simple in structure, not easy to wear, long service life, advantage that maintenance cost is low.
For achieving the above object, the utility model provides following technical scheme:
The slew gear that the utility model embodiment provides comprises first drive, seat ring, second drive and driving member, wherein:
Described first drive and described second drive all flexibly connect with described seat ring separately, and described first drive and described second drive all can rotate with respect to described seat ring around the active connection place of itself and described seat ring separately;
Described driving member is chain or the rope band of round, and described driving member is set in outside described first drive and described second drive, and described first drive can drive described second drive rotation by described driving member.
Described first drive and described second drive are sprocket wheel preferably or alternatively among the embodiment at one, and described driving member is chain.
At one preferably or alternatively among the embodiment, described chain is roller chain or silent chain.
At one preferably or alternatively among the embodiment, described sprocket wheel comprises at least two row's gear teeth, the described gear teeth of every row all distribute along the whole circumferential direction of described sprocket wheel, described chain comprises at least two driving-chains, and every described driving-chain all is set in the wherein described gear teeth of row of described first drive and wherein arranging on the described gear teeth of described second drive.
At one preferably or alternatively among the embodiment, the number of teeth of the described gear teeth on described first driving member is less than the number of teeth of the described gear teeth on described second driving member.
Described first drive and described second drive are gear preferably or alternatively among the embodiment at one, and described driving member is rope band.
The engineering machinery that the utility model embodiment provides, the described slew gear that comprise the turntable structure of getting on the bus, the rotary table of getting off, rotary reducer, pivoting support and the arbitrary technical scheme of the utility model provides, wherein:
Described pivoting support comprises inner ring and outer ring, and described outer ring is set in outside the described inner ring and can rotates with respect to described inner ring around the axial line of described inner ring;
Key is connected or fixedly connected between first drive of described slew gear and the output shaft of described rotary reducer;
Described second drive is the described outer ring of described pivoting support, and perhaps, described second drive coincides with the axial line of the outer ring of described pivoting support and both are fixed to one another is connected;
Fixedly connected with the described turntable structure of getting on the bus in the outer ring of described pivoting support;
The described seat ring of the inner ring of described pivoting support and described slew gear is fixedlyed connected with the described rotary table of getting off.
Also be provided with the chute that extends along the whole circumferential direction of described inner ring and described outer ring at one between the inner ring of described pivoting support and the outer ring preferably or alternatively among the embodiment, described chute is embedded with ball.
At one preferably or alternatively among the embodiment, be connected for spline between first drive of described slew gear and the output shaft of described rotary reducer.
At one preferably or alternatively among the embodiment, described engineering machinery is concrete mixer.
Based on technique scheme, the utility model embodiment can produce following technique effect at least:
Because in the slew gear that the utility model embodiment provides, driving member is the chain of round or the rope band of round, driving member is set in outside first drive and second drive, and first drive can drive second drive by driving member and rotate, and because chain and rope band all have certain flexibility, so the transmission mechanism that is formed by chain or rope band and first drive and second drive is lower with respect to gear drive of the prior art for processing and the matching requirements of the spacing between first drive and second drive, so produce with efficiency of assembling higher, it is higher to have solved prior art existence processing and matching requirements thus, causes producing the technical problem low with efficiency of assembling.
In addition, the optimal technical scheme that provides of the utility model compared with prior art can also produce following technique effect at least:
To the requirement of installing hole center to center distance machining accuracy between rotary reducer and the pivoting support, improved production efficiency when 1, having reduced the slew gear assembling.
2, adopt the slew gear of linked transmission when assembling, not need to guarantee gear-pair backlash between the first drive pinion and the pivoting support convenience of slew gear assembling to be improved greatly, improved the efficient of assembling.
3, when revolution chain with the first drive pinion between, cornerite increase between chain and the pivoting support, chain and first drive are that the number of teeth of pinion increases, wearing and tearing to pinion reduce, having improved first drive is pinion application life, thereby reduced the maintenance cost of whole slew gear, maintenance cost is low.
4, outer ring and inner ring, ball have constituted the sprocket-type pivoting support, adopt the sprocket-type pivoting support, and under the prerequisite that satisfies the pivoting support reliability, the facewidth will reduce, and be conducive to the loss of weight of pivoting support, thereby the weight of car load is reduced.And the processing capacity of the gear teeth also will reduce greatly, be conducive to the light-weight design of car load and reduce cost, increases benefit.
5, under the prerequisite that guarantees whole reliability of swing mechanism, sprocket wheel can adopt the form of structure of the sprocket wheel of single, double and many row's gear teeth, and will improve greatly the application life of whole slew gear.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of a kind of stereochemical structure of slew gear in the prior art;
Fig. 2 is the decomposing schematic representation of another kind of slew gear main member in the prior art;
The decomposing schematic representation of a kind of each member of slew gear that Fig. 3 provides for the utility model embodiment;
The decomposing schematic representation of another kind of each member of slew gear that Fig. 4 provides for the utility model embodiment;
Fig. 5 is the cross-sectional schematic of first drive shown in Figure 4;
Fig. 6 is the partial schematic sectional view of second drive shown in Figure 4;
Reference numeral: 1, first drive; 10, pinion; 11, idle pulley; 2, second drive; 3, seat ring; 4, driving member; 5, the output shaft of rotary reducer; 6, pivoting support; 61, inner ring; 611, outer installing hole; 612, interior installing hole; 613, seal; 63, chute; 7, internal spline.
The specific embodiment
Below by accompanying drawing Fig. 3～Fig. 6 and the mode of enumerating optional embodiment more of the present utility model, the technical solution of the utility model (comprising optimal technical scheme) is described in further detail.Need to prove: any technical characterictic in the present embodiment; any technical scheme all is the technical characterictic of plurality of optional or in the optional technical scheme one or more; can't exhaustive all alternative technical characterictics of the present utility model and alternative technical scheme in order to describe succinct need in the presents; the embodiment that also is not easy to each technical characterictic emphasizes that all it is one of optional numerous embodiments; so those skilled in the art should know: any technical characterictic and any technical scheme in the present embodiment all do not limit protection domain of the present utility model, and protection domain of the present utility model should comprise that those skilled in the art do not pay the thinkable any alternate embodiments of creative work.
It is a kind of simple in structure that the utility model embodiment provides, and is convenient to produce, the slew gear that assembling and long service life, maintenance cost are low and the engineering machinery that this slew gear is set.
Carry out more detailed elaboration below in conjunction with the technical scheme that the utility model of Fig. 3～Fig. 6 provides, the technical scheme that arbitrary technological means that the utility model is provided is replaced or two or more technological means that the utility model provides are made up mutually and obtains all should be within protection domain of the present utility model.
As Fig. 3～shown in Figure 6, the slew gear that the utility model embodiment provides, comprise first drive 1, seat ring 3, second drive 2 and driving member 4, wherein: first drive 1 and second drive 2 all flexibly connect with seat ring 3 separately, and first drive 1 and second drive 2 separately all can around its with the active connection place of seat ring 3 with respect to seat ring 3 rotations.Driving member 4 is chain or the rope band of round, and driving member 4 is set in outside first drive 1 and second drive 2, and first drive 1 can drive 2 rotations of second drive by driving member 4.
Because chain and rope band all have certain flexibility separately, so the transmission mechanism that is formed by chain or rope band and first drive 1 and second drive 2 is that processing and the matching requirements of center to center distance L are lower with respect to gear drive of the prior art for the spacing between first drive 1 and second drive 2, so the production of revolving structure and efficiency of assembling are higher.
As preferably a kind of or embodiment alternatively, first drive 1 and second drive 2 are sprocket wheel, and driving member 4 is chain.Chain can be roller chain or silent chain.
The linked transmission revolving structure that sprocket wheel and chain constitute, reliability is relatively good in transmission process.Simultaneously, since when revolution chain with first drive, 1 pinion between, cornerite increase between chain and the pivoting support 6, the number of teeth of chain and pinion increases, wearing and tearing to pinion reduce, improved pinion application life, thereby reduced the maintenance cost of whole slew gear, maintenance cost is low.Simultaneously, satisfying under the prerequisite of reliable transmission, the facewidth of the gear teeth reduces greatly, and the processing capacity of the gear teeth also will reduce greatly, be conducive to light-weight design and the cost efficiency of car load.
As preferably a kind of or embodiment alternatively, sprocket wheel comprises at least two row's gear teeth, and sprocket wheel is preferably and comprises two row's gear teeth.Every row's gear teeth all distribute along the whole circumferential direction of sprocket wheel, and chain comprises at least two driving-chains, and every driving-chain all is set in wherein row's gear teeth of first drive 1 and wherein arranging on the gear teeth of second drive 2.
Row's number of the gear teeth is more many, and then the required power of bearing of each gear teeth is more little in the transmission process, so the gear teeth are more not easy to wear, and the longer service life of gear.
As preferably a kind of or embodiment alternatively, the number of teeth of the gear teeth on first driving member 4 is less than the number of teeth of the gear teeth on second driving member 4.At this moment, can adjust the gearratio of this transmission mechanism by the mode of the change gear teeth number of teeth.
Certainly, first drive 1 and second drive 2 are gear, and driving member 4 is rope band with the technical scheme that substitutes above-mentioned linked transmission revolving structure also within protection domain of the present utility model.
The engineering machinery that the utility model embodiment provides, the slew gear that comprise the turntable structure of getting on the bus, the rotary table of getting off, rotary reducer, pivoting support 6 and the arbitrary technical scheme of the utility model embodiment provides, wherein: pivoting support 6 comprises inner ring 61 and outer ring, and the outer ring is set in outside the inner ring 61 and can rotates with respect to inner ring 61 around the axial line of inner ring 61.The axial line of inner ring 61 overlaps with the axial line of outer ring.
Key is connected or fixedly connected between first drive 1 of slew gear and the output shaft 5 of rotary reducer.Being preferably spline between first drive 1 of slew gear and the output shaft 5 of rotary reducer is connected.Spline comprises external splines and internal spline 7, and wherein: the output shaft 5 of rotary reducer is provided with external splines, and first drive 1 is provided with internal spline 7.
First drive 1 that the output shaft 5 of rotary reducer drives slew gear rotates, first drive 1 that rotates drives the outer ring rotation that second drive 2 is pivoting support 6 by chain or the rope band of round, second drive 2 that rotates is that the outer ring of pivoting support 6 can drive the turntable structure rotation of getting on the bus, and realizes going up the revolution of bassinet structure thus.
Certainly, second drive 2 coincide with the axial line of the outer ring of pivoting support 6 and both technical schemes that are connected fixed to one another also within protection domain of the present utility model.
As preferably a kind of or embodiment alternatively, also be provided with the chute 63 that extends along the whole circumferential direction of inner ring 61 and outer ring between the inner ring 61 of pivoting support 6 and the outer ring, chute 63 is embedded with ball.
Ball can reduce the inner ring 61 of pivoting support 6 and the frictional force between the outer ring, thus wearing and tearing when having avoided the outer ring to rotate with respect to inner ring 61.The arris place of junction also is provided with seal 613 between the inner ring 61 of pivoting support 6 and the outer ring, and seal 613 can avoid dust or moisture to see through in the seal 613 infiltration chutes 63.As preferably a kind of or embodiment alternatively, engineering machinery is concrete mixer.Concrete mixer is provided with the turntable structure of getting on the bus, the rotary table of getting off, and the suitable revolving structure of using the utility model and providing improves get on the bus turntable structure and the turnability between the rotary table of getting off.
Certainly, the revolving structure that provides of the arbitrary technical scheme of the utility model embodiment is applied to the technical scheme of the Other Engineering machinery outside the concrete mixer also within protection domain of the present utility model.
Above-mentioned arbitrary technical scheme disclosed in the utility model unless otherwise stated outside, if it discloses number range, so disclosed number range is preferred number range, any it should be appreciated by those skilled in the art: preferred number range only is the apparent in view or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, can't be exhaustive, so just openly part numerical value is illustrating the technical solution of the utility model for the utility model, and the above-mentioned numerical value of enumerating should not constitute the restriction of the utility model being created protection domain.
Simultaneously, if above-mentioned the utility model discloses or has related to component or the structural member of connection fastened to each other, so, unless otherwise stated, fixedly connected can be understood as: can dismantle ground fixedly connected (for example using bolt or screw to connect), also can be understood as: non-removable fixedly connected (for example rivet, weld), certainly, connection fastened to each other also can be replaced (obviously can't adopt except the integrally formed technology) by integral structure (for example use casting technique is integrally formed to create).
In addition, in the disclosed arbitrary technical scheme of above-mentioned the utility model applied term for expression position relation or shape unless otherwise stated outer its implication comprise and its approximate, similar or approaching state or shape.Arbitrary parts that the utility model provides both can be to be assembled by a plurality of independent ingredients, the produced separate part of the technology that also can be one of the forming.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (10)
1. a slew gear is characterized in that, comprises first drive, seat ring, second drive and driving member, wherein:
Described first drive and described second drive all flexibly connect with described seat ring separately, and described first drive and described second drive all can rotate with respect to described seat ring around the active connection place of itself and described seat ring separately;
Described driving member is chain or the rope band of round, and described driving member is set in outside described first drive and described second drive, and described first drive can drive described second drive rotation by described driving member.
2. slew gear according to claim 1 is characterized in that, described first drive and described second drive are sprocket wheel, and described driving member is chain.
3. slew gear according to claim 2 is characterized in that, described chain is roller chain or silent chain.
4. slew gear according to claim 3, it is characterized in that, described sprocket wheel comprises at least two row's gear teeth, the described gear teeth of every row all distribute along the whole circumferential direction of described sprocket wheel, described chain comprises at least two driving-chains, and every described driving-chain all is set in the wherein described gear teeth of row of described first drive and wherein arranging on the described gear teeth of described second drive.
5. slew gear according to claim 4 is characterized in that, the number of teeth of the described gear teeth on described first driving member is less than the number of teeth of the described gear teeth on described second driving member.
6. slew gear according to claim 1 is characterized in that, described first drive and described second drive are gear, and described driving member is rope band.
7. an engineering machinery is characterized in that, comprises the turntable structure of getting on the bus, the rotary table of getting off, rotary reducer, pivoting support and the arbitrary described slew gear of claim 1-6, wherein:
Described pivoting support comprises inner ring and outer ring, and described outer ring is set in outside the described inner ring and can rotates with respect to described inner ring around the axial line of described inner ring;
Key is connected or fixedly connected between first drive of described slew gear and the output shaft of described rotary reducer;
Described second drive is the described outer ring of described pivoting support, and perhaps, described second drive coincides with the axial line of the outer ring of described pivoting support and both are fixed to one another is connected;
Fixedly connected with the described turntable structure of getting on the bus in the outer ring of described pivoting support;
The described seat ring of the inner ring of described pivoting support and described slew gear is fixedlyed connected with the described rotary table of getting off.
8. engineering machinery according to claim 7 is characterized in that, also is provided with the chute that extends along the whole circumferential direction of described inner ring and described outer ring between the inner ring of described pivoting support and the outer ring, and described chute is embedded with ball.
9. engineering machinery according to claim 7 is characterized in that, is connected for spline between first drive of described slew gear and the output shaft of described rotary reducer.
10. according to claim 7 or 8 or 9 described engineering machinery, it is characterized in that described engineering machinery is concrete mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320090346 CN203160701U (en) | 2013-02-28 | 2013-02-28 | Rotation mechanism and engineering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320090346 CN203160701U (en) | 2013-02-28 | 2013-02-28 | Rotation mechanism and engineering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203160701U true CN203160701U (en) | 2013-08-28 |
Family
ID=49021896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320090346 Withdrawn - After Issue CN203160701U (en) | 2013-02-28 | 2013-02-28 | Rotation mechanism and engineering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203160701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132698A (en) * | 2013-02-28 | 2013-06-05 | 徐工集团工程机械股份有限公司 | Slewing mechanism and engineering machine |
-
2013
- 2013-02-28 CN CN 201320090346 patent/CN203160701U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132698A (en) * | 2013-02-28 | 2013-06-05 | 徐工集团工程机械股份有限公司 | Slewing mechanism and engineering machine |
| CN103132698B (en) * | 2013-02-28 | 2015-09-09 | 徐州徐工施维英机械有限公司 | Slew gear and engineering machinery |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130828 Effective date of abandoning: 20150909 |
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| RGAV | Abandon patent right to avoid regrant |