CN203924731U - A kind of eccentric seam device and concrete mixer that regulates meshed center distance - Google Patents
A kind of eccentric seam device and concrete mixer that regulates meshed center distance Download PDFInfo
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- CN203924731U CN203924731U CN201420179176.3U CN201420179176U CN203924731U CN 203924731 U CN203924731 U CN 203924731U CN 201420179176 U CN201420179176 U CN 201420179176U CN 203924731 U CN203924731 U CN 203924731U
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- eccentric
- fitting face
- eccentric bushing
- seam
- seat ring
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 53
- 238000010276 construction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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Abstract
The utility model relates to a kind of eccentric seam device and concrete mixer that regulates meshed center distance, and eccentric seam device comprises rotary reducer, base seat ring, pivoting support and eccentric bushing; Rotary reducer comprises rotary reducer fitting face, gear and output shaft, on base seat ring, be provided with base seat ring seam fitting face, output shaft runs through base seat ring seam fitting face, and output shaft is connected with gear, gear and the engagement of pivoting support external tooth, rotary reducer fitting face is positioned at below gear; Eccentric bushing is between rotary reducer fitting face and base seat ring seam fitting face, and eccentric bushing can be dismantled and be fixed on rotary reducer fitting face or eccentric bushing can be dismantled and is fixed on base seat ring seam fitting face.The eccentric seam device of the adjusting meshed center distance that the utility model provides overlaps to realize to join by eccentric adjustment and gathers the object of gear meshed center distance, can conveniently adjust gear meshed center distance, has improved transmission stability and reliability.
Description
Technical field
The utility model relates to engineering machinery field, is specifically related to a kind of concrete mixer that regulates the eccentric seam device of meshed center distance and have the eccentric seam device of this adjusting meshed center distance.
Background technology
Rotary reducer refers to a kind of reducer, adopts pivoting support as reducer driven member, can realize unconfined circumgyration and deceleration, can bear larger axial force, radial load and the power of toppling.Pivoting support refers to a kind of linkage of forming a connecting link, the same bearing of principle, and pivoting support is made up of two large divisions, has ball or roller assembly between the two, can realize two large divisions's relative motion.In engineering machinery, a part and the car body of pivoting support are connected and fixed, and another part connects with Working mechanism, by fluid motor-driven, can realize the rotation of Working mechanism.Seam refers to the structure for feeling relieved, connecting, and comprises male half coupling and recessed seam.Male half coupling refers to by the short cylindrical protruding and end face and forms; Recessed seam refers to by short hole and end face and forms.
Slew gear is widely used in engineering machinery field, its form of structure majority is made up of rotary supporting device and rotary decelerating machine actuating device two parts, standing part and the base of rotary supporting device are fixed, rotary decelerating machine actuating device drives the rotating part of rotary supporting device with respect to the standing part revolution of rotary supporting device, to reach the object of control appliance rotating part work, can realize like this job area of 360 °, as rotation of the rotation of concrete pump truck arm, excavator-type shovel clamshell excavator etc.
Be limited to the work long hours backgear field of conjugate action wearing and tearing of machining accuracy and assembly technology error effect and equipment, must cause gear and pivoting support gear backlash overproof, directly affect equipment revolution shake momentum excessive, move the series of problems such as not steady.
For addressing the above problem, prior art adopts following three kinds of technical schemes:
1, technical scheme one: as shown in Figure 1, 2, the center line 4a bias of the center line 3a of rotary reducer output shaft 1a and rotary reducer connecting hole 2a, rotary reducer integral-rotation certain angle is carried out to eccentric adjustment, reach to join and gather the object of gear meshed center distance.
But the shortcoming that technical scheme one exists is: the hydraulic oil port 5a connecting line of reductor is hydraulic hard tube, if reductor integral-rotation, the direction of hydraulic oil port 5a also can change thereupon, causes hydraulic hard tube to be scrapped, and increases maintenance difficulty and cost; Integral-rotation reductor may cause hydraulic oil rim of a cup 6a place and gear protector to be interfered.
2, technical scheme two: rotary reducer gear does not directly engage with pivoting support gear, but between increase by two idler gears, by regulating the position of two idler gears to come adjusting gear back lash, ensure transmission stability.
But the shortcoming that technical scheme two exists is: need scene to join weldering, assembly technology complexity; Component kind and quantity are many, economical not.
3, technical scheme three: according to the overproof amount of the actual back lash of specific works equipment, change the corresponding gear satisfying condition, meet transmission condition.
But the shortcoming that technical scheme three exists is: after-sale service personnel measuring technique is had relatively high expectations, and must have certain experiences; Need to customize gear, maintenance cycle length and increase maintenance cost.
Utility model content
The purpose of this utility model is to propose a kind of eccentric seam device and concrete mixer that regulates meshed center distance, and the eccentric seam device of this adjusting meshed center distance has solved the problems referred to above effectively.
For achieving the above object, the utility model provides following technical scheme:
An eccentric seam device that regulates meshed center distance, eccentric seam device comprises rotary reducer, base seat ring, pivoting support and eccentric bushing;
Rotary reducer comprises rotary reducer fitting face, gear and output shaft, on base seat ring, be provided with base seat ring seam fitting face, output shaft runs through base seat ring seam fitting face, and output shaft is connected with gear, gear and the engagement of pivoting support external tooth, rotary reducer fitting face is positioned at below gear;
Eccentric bushing is between rotary reducer fitting face and base seat ring seam fitting face, and eccentric bushing can be dismantled and be fixed on rotary reducer fitting face or eccentric bushing can be dismantled and is fixed on base seat ring seam fitting face.
At one preferably or alternatively in embodiment, eccentric bushing side is provided with radial screw bore, and screw can be dismantled eccentric bushing to be fixed on rotary reducer fitting face through radial screw bore or eccentric bushing can be dismantled and is fixed on base seat ring seam fitting face.
At one, preferably or alternatively in embodiment, eccentric bushing is monolithic construction.
At one, preferably or alternatively in embodiment, radial screw bore is three, and the spacing on the circumferencial direction of eccentric bushing between adjacent radial screw bore is identical.
At one, preferably or alternatively in embodiment, eccentric bushing is made up of at least two sections of circular arcs, between adjacent circular arc, has spacing, is all provided with a radial screw bore on every section of circular arc.
At one, preferably or alternatively in embodiment, eccentric bushing is made up of three sections of circular arcs, and the spacing on the circumferencial direction of eccentric bushing between adjacent circular arc is identical.
At one, preferably or alternatively in embodiment, eccentric bushing is that stainless steel is made.
The utility model also provides following technical scheme:
A kind of concrete mixer, concrete mixer comprises the eccentric seam device of adjusting meshed center distance as above.
Based on the arbitrary technical scheme in technique scheme, the utility model embodiment at least can produce following technique effect:
Because the eccentric seam device of adjusting meshed center distance provided by the utility model comprises rotary reducer, base seat ring, pivoting support and eccentric bushing; Rotary reducer comprises rotary reducer fitting face, gear and output shaft, on base seat ring, be provided with base seat ring seam fitting face, output shaft runs through base seat ring seam fitting face, and output shaft is connected with gear, gear and the engagement of pivoting support external tooth, rotary reducer fitting face is positioned at below gear; Eccentric bushing is between rotary reducer fitting face and base seat ring seam fitting face, eccentric bushing can be dismantled and be fixed on rotary reducer fitting face or eccentric bushing can be dismantled and is fixed on base seat ring seam fitting face, overlap to realize to join by eccentric adjustment and gather the object of gear meshed center distance, can conveniently adjust gear meshed center distance, the revolution that solution concrete mixer is caused because gear backlash is excessive is rocked one solution is effectively provided, and has improved transmission stability and reliability.
Brief description of the drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the rotary reducer output shaft center line of rotary reducer and the structure for amplifying schematic diagram of rotary reducer connecting hole center line bias of prior art;
Fig. 2 is the rotary reducer output shaft center line of rotary reducer and the lateral view of rotary reducer connecting hole center line bias of prior art;
Fig. 3 is the structural representation of eccentric seam device of the present utility model;
Fig. 4 is the cooperation schematic diagram of eccentric seam device of the present utility model;
Fig. 5 is the scheme of installation of the eccentric bushing of eccentric seam device of the present utility model;
Fig. 6 is that the eccentric bushing of the first embodiment of eccentric seam device of the present utility model is fixed on the scheme of installation on rotary reducer fitting face;
Fig. 7 is that the eccentric bushing of the second embodiment of eccentric seam device of the present utility model is fixed on the scheme of installation on rotary reducer fitting face;
Fig. 8 is that the eccentric bushing of the first embodiment of eccentric seam device of the present utility model is fixed on the scheme of installation on base seat ring seam fitting face;
Fig. 9 is that the eccentric bushing of the second embodiment of eccentric seam device of the present utility model is fixed on the scheme of installation on base seat ring seam fitting face.
Detailed description of the invention
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
It should be noted that: any technical characterictic in the present embodiment, any technical scheme is all one or more in technical characterictic or the optional technical scheme of plurality of optional, cannot exhaustive all alternative technical characterictics of the present utility model and alternative technical scheme in order to describe succinct need in presents, also the embodiment that is not easy to each technical characterictic all emphasizes that it is one of optional numerous embodiments, so those skilled in the art should know: any technical characterictic in the present embodiment and any technical scheme all do not limit protection domain of the present utility model, 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.
Below in order to narrate conveniently, hereinafter alleged " left side ", " right side ", " on ", left and right, the upper and lower of D score and accompanying drawing itself is to consistent.
As shown in Figure 3,4, a kind of eccentric seam device that regulates meshed center distance, eccentric seam device comprises rotary reducer 1, base seat ring 2, pivoting support 3 and eccentric bushing 4;
Rotary reducer 1 comprises rotary reducer fitting face 5, gear 6 and output shaft 7, on base seat ring 2, be provided with base seat ring seam fitting face 8, output shaft 7 runs through base seat ring seam fitting face 8, output shaft 7 is connected with gear 6, gear 6 and pivoting support 3 external tooth engagements, rotary reducer fitting face 5 is positioned at below gear 6;
Eccentric bushing 4 is between rotary reducer fitting face 5 and base seat ring seam fitting face 8, and eccentric bushing 4 can be dismantled and be fixed on rotary reducer fitting face 5 or eccentric bushing can be dismantled and is fixed on base seat ring seam fitting face 8.
The operating principle of eccentric seam device is: (both can be male half coupling by an eccentric bushing as rotary reducer seam, can be again recessed seam), eccentric bushing inner surface coordinates with rotary reducer fitting face, eccentric bushing external surface coordinates with base seat ring seam fitting face, under the prerequisite of relative position that neither changes rotary reducer and other parts, rotate eccentric bushing certain angle like this, can reach the problem of adjusting gear meshed center distance, and then adjustment gear backlash, solve revolution and rock problem.
Can dismantle while being fixed on rotary reducer fitting face when eccentric bushing, eccentric bushing uses as male half coupling.Can dismantle while being fixed on base seat ring seam fitting face when eccentric bushing, eccentric bushing uses as recessed seam, is similar to eccentric sleeve.
This bias seam device solved last point of market with eccentric reducing because the reasons such as hydraulic pressure stringing cannot play the problem of eccentric adjustment effect, avoid the problem that cannot adjusting gear center to center distance be forced to customize gear and then increases maintenance cost and maintenance cycle due to a variety of causes, portable strong, form of structure changes various, processing and manufacturing and assembly technology are simple, and dependability is strong.
The other parts of rotary reducer and the other parts of pivoting support can be with reference to prior aries, no longer launch herein to describe.
Eccentric bushing 4 sides are provided with radial screw bore 9, and screw 10 can be dismantled eccentric bushing 4 to be fixed on rotary reducer fitting face 5 through radial screw bore 9 or eccentric bushing 4 can be dismantled and is fixed on base seat ring seam fitting face 8.
As shown in Fig. 5,6,8, eccentric bushing 4 is monolithic construction.
Monolithic construction refers to that the circular arc of composition eccentric bushing forms the circle of sealing in a circumferential direction.
Radial screw bore 9 is three, and the spacing on the circumferencial direction of eccentric bushing 4 between adjacent radial screw bore 9 is identical.
As shown in Fig. 7,9, for the convenience of dismounting in manufacturing processing technic and use procedure, eccentric bushing structure can be made segmentation form.Eccentric bushing 4 is made up of at least two sections of circular arcs, between adjacent circular arc, has spacing, is all provided with a radial screw bore 9 on every section of circular arc.
Eccentric bushing 4 is made up of three sections of circular arcs, and the spacing on the circumferencial direction of eccentric bushing 4 between adjacent circular arc is identical.
Eccentric bushing 4 is made for stainless steel, has improved the application life of eccentric bushing.
As shown in Figure 6,7, the offset 11 of eccentric bushing 4 is greater than 0mm and is less than 1.5mm, and seam fit tolerance is generally got H7/h6 or H7/g6, and roughness is got Ra=6.3 μ m, and length of fit (eccentric bushing thickness) is not less than 5mm.
A kind of concrete mixer, concrete mixer comprises the eccentric seam device of adjusting meshed center distance as above.
The other parts of concrete mixer can be with reference to prior art, no longer launches herein to describe.
Above-mentioned arbitrary technical scheme disclosed in the utility model unless otherwise stated, 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 is only the obvious or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, cannot be exhaustive, so the utility model just discloses part numerical value to illustrate the technical solution of the utility model, and the above-mentioned numerical value of enumerating should not form the restriction of the utility model being created to protection domain.
If used the word such as " first ", " second " to limit component herein, those skilled in the art should know: the use of " first ", " second " is only used to be convenient to describe above component are distinguished as not having outside Stated otherwise, and above-mentioned word does not have special implication.
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, be fixedly connected with and can be understood as: can dismantle and be fixedly connected with (for example using bolt or screw to connect), also can be understood as: non-removable being fixedly connected with (for example rivet, weld), certainly, connection fastened to each other also can for example, be replaced (obviously cannot adopt except integrally formed technique) by integral type structure (use casting technique is integrally formed to be created).
In addition, in the disclosed arbitrary technical scheme of above-mentioned the utility model applied for the term that represents position relationship or shape unless otherwise stated its implication comprise and its approximate, similar or approaching state or shape.Arbitrary parts that the utility model provides can be both to be assembled by multiple independent ingredients, the produced separate part of the technique that also can be one of the forming.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement detailed description of the invention of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (7)
1. an eccentric seam device that regulates meshed center distance, is characterized in that, described eccentric seam device comprises rotary reducer, base seat ring, pivoting support and eccentric bushing;
Rotary reducer comprises rotary reducer fitting face, gear and output shaft, on base seat ring, be provided with base seat ring seam fitting face, output shaft runs through base seat ring seam fitting face, and output shaft is connected with gear, gear and the engagement of pivoting support external tooth, rotary reducer fitting face is positioned at below gear;
Eccentric bushing is between rotary reducer fitting face and base seat ring seam fitting face, and eccentric bushing can be dismantled and be fixed on rotary reducer fitting face or eccentric bushing can be dismantled and is fixed on base seat ring seam fitting face.
2. eccentric seam device according to claim 1, it is characterized in that, eccentric bushing side is provided with radial screw bore, and screw can be dismantled eccentric bushing to be fixed on rotary reducer fitting face through radial screw bore or eccentric bushing can be dismantled and is fixed on base seat ring seam fitting face.
3. eccentric seam device according to claim 2, is characterized in that, described eccentric bushing is monolithic construction.
4. eccentric seam device according to claim 3, is characterized in that, radial screw bore is three, and the spacing on the circumferencial direction of eccentric bushing between adjacent radial screw bore is identical.
5. eccentric seam device according to claim 2, is characterized in that, described eccentric bushing is made up of at least two sections of circular arcs, between adjacent circular arc, has spacing, is all provided with a radial screw bore on every section of circular arc.
6. eccentric seam device according to claim 5, is characterized in that, described eccentric bushing is made up of three sections of circular arcs, and the spacing on the circumferencial direction of eccentric bushing between adjacent circular arc is identical.
7. a concrete mixer, is characterized in that, described concrete mixer comprises the eccentric seam device of the adjusting meshed center distance described in claim 1-6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179176.3U CN203924731U (en) | 2014-04-14 | 2014-04-14 | A kind of eccentric seam device and concrete mixer that regulates meshed center distance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179176.3U CN203924731U (en) | 2014-04-14 | 2014-04-14 | A kind of eccentric seam device and concrete mixer that regulates meshed center distance |
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| Publication Number | Publication Date |
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| CN203924731U true CN203924731U (en) | 2014-11-05 |
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| CN201420179176.3U Expired - Lifetime CN203924731U (en) | 2014-04-14 | 2014-04-14 | A kind of eccentric seam device and concrete mixer that regulates meshed center distance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894503A (en) * | 2018-07-12 | 2018-11-27 | 湖南响箭重工科技有限公司 | A kind of adjustable rotary mechanism and pump truck for pump truck |
-
2014
- 2014-04-14 CN CN201420179176.3U patent/CN203924731U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894503A (en) * | 2018-07-12 | 2018-11-27 | 湖南响箭重工科技有限公司 | A kind of adjustable rotary mechanism and pump truck for pump truck |
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| GR01 | Patent grant | ||
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Granted publication date: 20141105 |