CN203756854U - Eccentricity-variable automatic balance weight mechanism for crank - Google Patents
Eccentricity-variable automatic balance weight mechanism for crank Download PDFInfo
- Publication number
- CN203756854U CN203756854U CN201420111523.9U CN201420111523U CN203756854U CN 203756854 U CN203756854 U CN 203756854U CN 201420111523 U CN201420111523 U CN 201420111523U CN 203756854 U CN203756854 U CN 203756854U
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- CN
- China
- Prior art keywords
- crank
- balancing weight
- slide guide
- weight
- gear
- 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.)
- Withdrawn - After Issue
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Abstract
An eccentricity-variable automatic balance weight mechanism for a crank comprises a rotating main piece (1), the crank (2) and balancing weights, wherein the crank (2) is connected with the rotating main piece (1) through a first sliding guide rail (3). The balancing weights include the first balancing weight (4) and the second balancing weight (5). The first balancing weight (4) is connected with the rotating main piece (1) through a second sliding guide rail (6). The second balancing weight (5) is connected with the rotating main piece (1) through a third sliding guide rail (7). The first sliding guide rail (3), the second sliding guide rail (6) and the third sliding guide rail (7) are parallel to one another. The first balancing weight (4) and the second balancing weight (5) are symmetrically distributed along the crank (2). A transmission assembly is arranged between the first balancing weight (4) and the crank (2). A transmission assembly is arranged between the second balancing weight (5) and the crank (2). Compared with the prior art, the eccentricity-variable automatic balance weight mechanism has the advantages of being free of machine halt in the adjustment process, simple in structure, light in weight, low in energy consumption, high in adjustment efficiency, high in adjustment accuracy and high in device running efficiency.
Description
Technical field
The utility model relates to a kind of balance weight mechanism, particularly relates to the automatic counter weight mechanism of the variable crank of a kind of offset.
Background technique
At present, the balance weight mechanism of the variable crank of offset comprises rotation main part, balancing weight and crank, balancing weight and crank are all arranged on rotation main part, because crank is eccentrically set on rotation main part, therefore when reducing work because bias produces the vibrations that centrifugal force causes, balancing weight need to be set, make to rotate the center of gravity of main part in the time rotating and be still positioned at center position, so just can eliminate because crank eccentric setting produces the vibrations that cause of centrifugal force, make crank all the time in the rotation of the steady balance in same center.But the balance weight mechanism of the variable crank of offset of prior art in use, in the time regulating the throw of eccentric of crank, major part needs the position of manual tune balancing weight, cannot regulate with automatic adjusting mechanism, after need to shutting down while adjusting, just can carry out, this just exists and regulates efficiency lower, regulates the lower problem of accuracy rate; The precision of manual tune is lower simultaneously, and the centrifugal force therefore producing can only turn round in low-speed range equipment, makes the operational efficiency of equipment lower; Also there is fraction to regulate with automatic adjusting mechanism; but crank and balancing weight need to be distinguished a corresponding controlling mechanism separately; regulate separately respectively; although improved adjusting efficiency and need not shut down adjusting; but exist structure more complicated; weight is heavier, and when use, energy consumption is higher, the problem that degree of regulation is lower.
Model utility content
The utility model for above problem provide one can use automatic adjusting mechanism regulate, and regulate do not need shut down, structure is simpler; weight is lighter; energy consumption is lower, regulates efficiency higher, the automatic counter weight mechanism of the variable crank of offset that degree of regulation is higher and equipment operating efficiency is higher.
The utility model overcomes the above problems technological scheme used: the automatic counter weight mechanism that the variable crank of a kind of offset is provided, it comprises rotation main part, crank and balancing weight, described crank is connected with rotation main part by the first slide guide, described balancing weight is divided into the first balancing weight and the second balancing weight, the first described balancing weight is connected with rotation main part with the 3rd slide guide by the second slide guide respectively with the second balancing weight, the first described slide guide, the second slide guide and the 3rd slide guide are parallel to each other, described the first balancing weight and the second balancing weight are symmetrical along crank, between the first described balancing weight and crank and between the second balancing weight and crank, be equipped with transmitting assemblies.
Adopt after above structure, compared with prior art, the utility model is because crank and balancing weight are all slidably connected at rotation main part, and be equipped with transmitting assemblies between crank and balancing weight, only crank need to be connected with automatic adjusting mechanism, in the time regulating, in the time of the effect lower slider of crank at automatic adjusting mechanism, under the effect of transmitting assemblies, drive balancing weight to slide, ensure that center of gravity when crank rotates overlaps with the center of gravity of rotation main part, therefore without workman's manual tune, when adjusting, do not need to shut down yet, linkage structure, can effectively improve degree of regulation, and save the automatic adjusting mechanism that original balancing weight is corresponding, structure is simpler, weight is also just lighter, and then can reduce the energy consumption while operation, and improve slewing rate, make to regulate efficiency higher, the operational efficiency of final raising equipment.Therefore the utlity model has use automatic adjusting mechanism regulate, and regulate do not need shut down, structure is simpler, weight is lighter, energy consumption is lower, regulate efficiency higher, the feature that degree of regulation is higher and equipment operating efficiency is higher.
As improvement, described transmitting assemblies comprises the first gear and the second gear, the side of side, crank both sides and the nearly crank of the second balancing weight of the described nearly crank of the first balancing weight is equipped with tooth bar, tooth bar between described the first balancing weight and crank is connected by the first gear, tooth bar between the second balancing weight and crank is connected by the second gear, the transmitting assemblies of this structure, component are less, be easy to install, and without independent position-limit mechanism, can further reduce weight and cost of production; Simultaneously the transmission stability of gear rack is better, can keep good precision, can further improve degree of regulation, while making equipment work, shake less, the accuracy of guarantee testing of equipment data.
As further improvement, the first described gear and the second gear are identical gear, tooth bar on the first described balancing weight is identical with the rack structure on the second balancing weight, the rack structure of described crank dual-side is identical, the gear of this structure and rack combination, while making to regulate, the conformity of the movement of two balancing weights is better, and then ensures the degree of regulation of counterweight.
As further improving again, described rotation main part is provided with the through hole of long strip, and the length direction of described through hole is parallel with the first slide guide, in described through hole, is provided with slide block, described slide block one end is crossed through hole and is fixedly connected with crank, and the slide block the other end is positioned at outside through hole; After through hole and slide block arrange, make automatic adjusting mechanism regulate crank at the back side of rotation main part, can reduce the size of rotation main part, further reduce production costs.
As preferably, described the first slide guide, the second slide guide and the 3rd slide guide are linear rail; Because linear rail is existing commercially available conventional products, can effectively reduce the cost of production of equipment.
As preferably, the described slide block the other end is provided with attachment hole, and the axis of described attachment hole is parallel with the first slide guide, and attachment hole can be more convenient for and being connected of automatic adjusting mechanism, and further improves installation efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the automatic counter weight mechanism of the variable crank of offset of the present utility model.
Fig. 2 is the sectional view along A-A line in Fig. 1.
As shown in the figure: 1, rotation main part, 1.1, through hole, 2, crank, 3, the first slide guide, 4, the first balancing weight, 5, the second balancing weight, 6, the second slide guide, 7, the 3rd slide guide, 8, the first gear, 9, the second gear, 10, tooth bar, 11, slide block, 11.1, attachment hole.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As depicted in figs. 1 and 2, the automatic counter weight mechanism of the variable crank of a kind of offset, it comprises rotation main part 1, crank 2 and balancing weight (also comprise other component certainly, but owing to not relating to the inventive point of the invention, therefore do not repeat them here), described crank 2 is connected with rotation main part 1 by the first slide guide 3, described balancing weight is divided into the first balancing weight 4 and the second balancing weight 5, the first balancing weight 4 is all identical with the second balancing weight 5 structure weights, the first described balancing weight 4 is connected with rotation main part 1 with the 3rd slide guide 7 by the second slide guide 6 respectively with the second balancing weight 5, the first described slide guide 3, the second slide guide 6 and the 3rd slide guide 7 are parallel to each other, described the first balancing weight 4 and the second balancing weight 5 are symmetrical along crank 2, between the first described balancing weight 4 and crank 2 and between the second balancing weight 5 and crank 2, be equipped with transmitting assemblies.
Described transmitting assemblies comprises the first gear 8 and the second gear 9, the side of side, crank 2 both sides and the second balancing weight 5 nearly cranks 2 of the first described balancing weight 4 nearly cranks 2 is equipped with tooth bar 10, tooth bar 10 between described the first balancing weight 4 and crank 2 is connected by the first gear 8, and the tooth bar 10 between the second balancing weight 5 and crank 2 is connected by the second gear 9.
The first described gear 8 and the second gear 9 are identical gear, the first gear 8 is the gear that parameter is identical with the second gear 9, tooth bar 10 on the first described balancing weight 4 is identical with tooth bar 10 structures on the second balancing weight 5, tooth bar 10 structures of described crank 2 dual-sides are identical, and the structure and parameters of general all tooth bars 10 is all identical.
Described the first slide guide 3, the second slide guide 6 and the 3rd slide guide 7 is linear rail (this example is roller bearing linear rail, also can be roller linear rail or cylindrical linear rail etc.).
Described rotation main part 1 is provided with the through hole 1.1 of long strip, the length direction of described through hole 1.1 is parallel with the first slide guide 3, operated by rotary motion through hole 1.1 is positioned near the first slide guide 3, so that being connected of slide block 11 and crank 2, in described through hole 1.1, be provided with slide block 11, described slide block 11 one end are crossed through hole 1.1 and are fixedly connected with crank 2, and slide block 11 the other ends are positioned at outside through hole 1.1, and general slide block 11 is connected with the slide block on the first slide guide 3.
Described slide block 11 the other ends are provided with attachment hole 11.1, and the axis of described attachment hole 11.1 is parallel with the first slide guide 3, and general attachment hole 11.1 is tapped hole.
When use, in the time of the effect lower slider of crank 2 at controlling mechanism, under the effect of the first gear 8, the second gear 9 and tooth bar 10, drive the first balancing weight 4 and the second balancing weight 5 to do and the reciprocal motion of crank 2 glide direction, thereby make crank 2 at any eccentric position of rotation main part 1, center of gravity when the first balancing weight 4 and the second balancing weight 5 all can make crank 2 rotate overlaps with the center of gravity of rotation main part 1, to reduce vibrations and noise.
Above embodiment is only preferred embodiment of the present utility model, and the utility model is not limited only to above embodiment and has also allowed other structural change, allly in the utility model rights to independence claimed range, changes, and all belongs to the utility model protection domain.
Claims (6)
1. the automatic counter weight mechanism of the variable crank of offset, it comprises rotation main part (1), crank (2) and balancing weight, it is characterized in that: described crank (2) is connected with rotation main part (1) by the first slide guide (3), described balancing weight is divided into the first balancing weight (4) and the second balancing weight (5), described the first balancing weight (4) is connected with rotation main part (1) with the 3rd slide guide (7) by the second slide guide (6) respectively with the second balancing weight (5), described the first slide guide (3), the second slide guide (6) and the 3rd slide guide (7) are parallel to each other, described the first balancing weight (4) is symmetrical along crank (2) with the second balancing weight (5), between described the first balancing weight (4) and crank (2) and between the second balancing weight (5) and crank (2), be equipped with transmitting assemblies.
2. the automatic counter weight mechanism of the variable crank of offset according to claim 1, it is characterized in that: described transmitting assemblies comprises the first gear (8) and the second gear (9), the side of the described nearly crank (2) of the first balancing weight (4), the side of the nearly crank (2) of crank (2) both sides and the second balancing weight (5) is equipped with tooth bar (10), tooth bar (10) between described the first balancing weight (4) and crank (2) is connected by the first gear (8), tooth bar (10) between the second balancing weight (5) and crank (2) is connected by the second gear (9).
3. the automatic counter weight mechanism of the variable crank of offset according to claim 2, it is characterized in that: described the first gear (8) is identical gear with the second gear (9), tooth bar (10) on described the first balancing weight (4) is identical with tooth bar (10) structure on the second balancing weight (5), and tooth bar (10) structure of described crank (2) dual-side is identical.
4. the automatic counter weight mechanism of the variable crank of offset according to claim 1, is characterized in that: described the first slide guide (3), the second slide guide (6) and the 3rd slide guide (7) are linear rail.
5. the automatic counter weight mechanism of the variable crank of offset according to claim 1, it is characterized in that: described rotation main part (1) is provided with the through hole (1.1) of long strip, the length direction of described through hole (1.1) is parallel with the first slide guide (3), in described through hole (1.1), be provided with slide block (11), described slide block (11) one end is crossed through hole (1.1) and is fixedly connected with crank (2), and slide block (11) the other end is positioned at outside through hole (1.1).
6. the automatic counter weight mechanism of the variable crank of offset according to claim 5, it is characterized in that: described slide block (11) the other end is provided with attachment hole (11.1), and the axis of described attachment hole (11.1) is parallel with the first slide guide (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111523.9U CN203756854U (en) | 2014-03-11 | 2014-03-11 | Eccentricity-variable automatic balance weight mechanism for crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111523.9U CN203756854U (en) | 2014-03-11 | 2014-03-11 | Eccentricity-variable automatic balance weight mechanism for crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756854U true CN203756854U (en) | 2014-08-06 |
Family
ID=51252134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420111523.9U Withdrawn - After Issue CN203756854U (en) | 2014-03-11 | 2014-03-11 | Eccentricity-variable automatic balance weight mechanism for crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836111A (en) * | 2014-03-11 | 2014-06-04 | 宁波巨匠自动化装备有限公司 | Automatic counterweight mechanism with adjustable eccentricity crank |
-
2014
- 2014-03-11 CN CN201420111523.9U patent/CN203756854U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836111A (en) * | 2014-03-11 | 2014-06-04 | 宁波巨匠自动化装备有限公司 | Automatic counterweight mechanism with adjustable eccentricity crank |
| CN103836111B (en) * | 2014-03-11 | 2016-05-04 | 宁波巨匠自动化装备有限公司 | The automatic counter weight mechanism of the variable crank of offset |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |