CN102364133A - Sectional type crankshaft structure - Google Patents
Sectional type crankshaft structure Download PDFInfo
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- CN102364133A CN102364133A CN2011103823153A CN201110382315A CN102364133A CN 102364133 A CN102364133 A CN 102364133A CN 2011103823153 A CN2011103823153 A CN 2011103823153A CN 201110382315 A CN201110382315 A CN 201110382315A CN 102364133 A CN102364133 A CN 102364133A
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- single hop
- bent axle
- adjacent single
- positioning block
- crankshafts
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Abstract
The invention discloses a sectional type crankshaft structure. A crankshaft is formed by combining a plurality of single sectional crankshafts; the single sectional crankshafts are provided with lubrication oil conveying channels which are communicated with one another; a positioning connection device is arranged between two adjacent single sectional crankshafts; the adjacent single sectional crankshafts are fixedly connected together through the positioning connection devices; key grooves are formed on shaft necks of the adjacent single sectional crankshafts respectively; each positioning connection device comprises flat keys embedded in two key grooves, a positioning block which is arranged between the shaft necks of the adjacent single sectional crankshafts and used for limiting a distance between the adjacent single sectional crankshafts, and a haff hoop for integrating and fixing the shaft necks of the adjacent single sectional crankshafts; and through holes communicated with the lubrication oil conveying channels are formed in the positioning blocks. The sectional type crankshaft is convenient to process and install; the distance between the adjacent single sectional crankshafts is accurate; the precision of a phase angle between the adjacent single sectional crankshafts is high; the transmission precision of the crankshaft is high; and the production cost is low.
Description
Technical field
The present invention relates to a kind of bent axle, particularly relate to a kind of segmented crankshaft structure, mainly be applicable in the transmission system of warp knitting machine or other machinery.
Background technique
Employed segmented bent axle is combined by several single hop bent axles in existing warp knitting machine or other machinery transmission system; Be provided with positioning connecting device between adjacent two single hop bent axles; Described positioning connecting device is made up of three high-precision location bolts and the trisection positioning hole that is opened in respectively on the axial end of adjacent single hop crankshaft journal usually, through being connected of said holding down bolt and positioning hole said adjacent single hop bent axle is fixed together; This crankshaft structure is at Chinese utility model patent; The patent No. is ZL200820087463.6; Name is called the segmented crankshaft structure, and is ZL201029044071.6 in the patent No., and name is called in the patent prospectus of separate assembling bent axle has all done comparatively detailed explanation.But; There is the defective of the following aspects in this segmented crankshaft structure in processing and installation process; On the one hand, be the structure that holding down bolt and positioning hole are connected because positioning connecting device adopts, thereby this structure can't guarantee the phase angle precision requirement between the adjacent single hop bent axle; Thereby cause the phase angle between the adjacent single hop bent axle to exist, greatly reduce transmission accuracy than large deviation; On the other hand; For guaranteeing the axle journal ability coaxial line of adjacent single hop bent axle; Then must the axial end precision machining of adjacent single hop crankshaft journal can be satisfied matching requirements with planeness and the perpendicularity that guarantees two axial end of joining, it is high to cause the single hop crank processing precision to require like this; Difficulty of processing is big, and cost is high; Another aspect because the machining accuracy of holding down bolt and trisection positioning hole and quality of fit require height, causes the difficulty of processing of holding down bolt and positioning hole big, and reject rate is high, thereby makes that the processing cost of single hop bent axle is higher.In addition, the bent axle of this segmental structure is when assembling, and operation is also very inconvenient.
Summary of the invention
The technical problem that the present invention will solve provides and a kind ofly can guarantee that phase angle precision between the adjacent single hop bent axle requires and can guarantee the distance between the adjacent single hop bent axle with simple structure effectively; Thereby obtain higher transmission accuracy, and convenient processing and installation, a kind of segmented crankshaft structure that cost is low.
For solving the problems of the technologies described above; The present invention adopts a kind of like this segmented crankshaft structure; Said bent axle is combined by several single hop bent axles; Said each single hop bent axle has the lubrication delivery passage that is interconnected; Be provided with positioning connecting device between adjacent two single hop bent axles; Through said positioning connecting device said adjacent single hop bent axle is fixed together, on the axle journal of said adjacent single hop bent axle, offers keyway respectively, between the axle journal that said positioning connecting device comprises the flat key that is inlaid in said two keyways, place said adjacent single hop bent axle and be used to limit the positioning block of distance between the adjacent single hop bent axle and the Hough anchor ear that axle journal obvolvent that will said adjacent single hop bent axle is fixed; Said positioning block is provided with the through hole that connects with said lubrication delivery passage.
After adopting such structure; Because segmented bent axle of the present invention is offered keyway respectively on the axle journal of adjacent single hop bent axle, positioning connecting device mainly constitutes being inlaid in the flat key in two keyways, the positioning block that limits distance between the adjacent single hop bent axle and the Hough anchor ear that adjacent axle journal obvolvent is fixing; Therefore; Segmented bent axle of the present invention guarantees the phase angle precision requirement of each single hop bent axle in the course of working through the keyway of on the axle journal of each single hop bent axle, offering; And guarantee the phase angle precision requirement between the adjacent single hop bent axle in the installation process, thereby reach high transmission accuracy through the flat key that is inlaid in adjacent single hop bent axle two keyways; And; Guarantee the distance between the adjacent single hop bent axle through positioning block; Thereby guarantee that the moving element that is installed on the bent axle for example has correct mutual alignment between the connecting rod, when moving elements such as crank-driven connecting rod move, can guarantee that these moving elements move like this on correct position; In addition, adjacent axle journal obvolvent is fixed, so not only guaranteed the axle journal ability coaxial line of adjacent single hop bent axle, but also each single hop bent axle is fixed together integral shaft of formation through the Hough anchor ear.Again because positioning connecting device according to the invention simple in structure, and wherein each component processing is easy, therefore greatly reduces the processing cost and the installation difficulty of bent axle.
As a kind of preferred implementation of the present invention, said positioning block is cylindrical, is provided with a round ring boss at the outer peripheral surface middle part of this cylindrical shape positioning block; On the axial end of said adjacent single hop crankshaft journal, offer the counterbore that connects with said lubrication delivery passage respectively, the aperture of this two counterbore equates; The external diameter of the round ring boss of said positioning block is greater than the aperture of said counterbore; The cylindrical shape stack shell of said positioning block places in the cavity that said two counterbores surround, and between said two counterbores and said positioning block, also is respectively equipped with the sealed member that is used to prevent oil leak.In the present invention, the thickness of the round ring boss of said positioning block is preferably between 2～7 millimeters.After adopting such structure, on the one hand, two parallel side of the round ring boss through positioning block and the axial end close fit of adjacent single hop crankshaft journal; Thereby guarantee the required distance between the adjacent single hop bent axle reliably; On the other hand, the cylindrical shape stack shell through positioning block places in the cavity that two counterbores surround, and sealed member is set respectively between two counterbores and positioning block; The sealing parts are preferably y-type seal ring; Even such structure makes under the bigger situation of lubricant oil oil pressure, can prevent effectively that still lubricant oil from taking place to the situation of external leakage, thereby guarantee to supply with unimpeded, oil-proof to the lubricated oil circuit of crankshaft bearing liner.
Description of drawings
Do further to specify below in conjunction with the accompanying drawing specific embodiments of the invention.
Fig. 1 is a kind of structural representation of segmented crankshaft structure of the present invention.
Fig. 2 is the structural representation of a single hop bent axle among the present invention.
Fig. 3 is the structural representation of another adjacent with single hop bent axle shown in Figure 2 among the present invention single hop bent axle.
Fig. 4 is the partial schematic sectional view of positioning block among the present invention.
Fig. 5 is the schematic side view of positioning block shown in Figure 4.
Embodiment
To a kind of segmented crankshaft structure shown in Figure 5, said bent axle I is combined by several single hop bent axles, as a kind of embodiment referring to Fig. 1; Bent axle I shown in Figure 1 is combined by three single hop bent axles 1,2 and 7, and said each single hop bent axle has the lubrication delivery passage H that is interconnected; This lubrication delivery passage H is used for lubricant oil is delivered to the bearing shell of bent axle, and adjacent two single hop bent axles for example are provided with positioning connecting device between 1,2; Through said positioning connecting device said adjacent single hop bent axle 1,2 is fixed together, at said adjacent single hop bent axle 1; Offer keyway 1-1 on 2 the axle journal respectively, 2-1, said positioning connecting device comprise and are inlaid in said two keyway 1-1; Flat key 3 in the 2-1, place said adjacent single hop bent axle 1; Between 2 the axle journal and be used to limit the positioning block 4 of distance between the adjacent single hop bent axle 1,2 and the Hough anchor ear 5 that the axle journal obvolvent of said adjacent single hop bent axle 1,2 is fixing; Said positioning block 4 is provided with the through hole 4-1 that connects with said lubrication delivery passage H.
As a kind of preferred implementation of the present invention; Like Fig. 4, shown in 5, said positioning block 4 is cylindrical, is provided with a round ring boss 4-2 at the outer peripheral surface middle part of this cylindrical shape positioning block 4; In the present invention, the thickness L of this round ring boss 4-2 is preferably between 2～7 millimeters; Shown in Fig. 1 to 3, on the axial end of said adjacent single hop bent axle 1,2 axle journal, offer the counterbore 1-2 that connects with said lubrication delivery passage H respectively, 2-2, this two counterbore 1-2, the pore size of 2-2 equates; The external diameter of the round ring boss 4-2 of said positioning block 4 is greater than said counterbore 1-2, the aperture of 2-2, so when mounted; Through hole 4-1 and lubrication delivery passage H coaxial line with said positioning block 4; Two parallel side of the round ring boss 4-2 of said positioning block 4 and the axial end close fit of adjacent single hop bent axle 1,2 axle journal, the cylindrical shape stack shell of said positioning block 4 places said two counterbore 1-2; In the cavity that 2-2 surrounds; And, being provided for preventing the sealed member of oil leak between 2-2 and the said positioning block 4 respectively at said two counterbore 1-2, described sealed member is preferably y-type seal ring 6.In addition, in the present invention, said positioning block 4 also can be other shape, is provided with through hole, thickness in the middle of for example and is 2～7 millimeters plate, and is not shown in the figures.
Through on probation, the installation of segmented bent axle of the present invention is simple, has shortened the installation time, and the distance between the adjacent single hop bent axle is accurate, and the phase angle precision between the adjacent single hop bent axle is high, has improved the transmission accuracy of bent axle, has reduced the cost of production of bent axle.
Claims (4)
1. segmented crankshaft structure, said bent axle (I) is combined by several single hop bent axles, and said each single hop bent axle has the lubrication delivery passage (H) that is interconnected; Be provided with positioning connecting device between adjacent two single hop bent axles (1,2), through said positioning connecting device with said adjacent single hop bent axle (1; 2) be fixed together, it is characterized in that: on the axle journal of said adjacent single hop bent axle (1,2), offer keyway (1-1 respectively; 2-1); Said positioning connecting device comprises and is inlaid in said two keyways (1-1, places between the axle journal of said adjacent single hop bent axle (1,2) and is used to limit adjacent single hop bent axle (1 flat key (3) in 2-1); 2) positioning block of distance (4) and the Hough anchor ear (5) that the axle journal obvolvent of said adjacent single hop bent axle (1,2) is fixing between; Said positioning block (4) is provided with the through hole (4-1) that connects with said lubrication delivery passage (H).
2. segmented crankshaft structure according to claim 1 is characterized in that: said positioning block (4) is cylindrical, is provided with a round ring boss (4-2) at the outer peripheral surface middle part of this cylindrical shape positioning block (4); On the axial end of said adjacent single hop bent axle (1,2) axle journal, offer respectively the counterbore that connects with said lubrication delivery passage (H) (1-2,2-2), this two counterbore (1-2, aperture 2-2) equates; The external diameter of the round ring boss (4-2) of said positioning block (4) is greater than said counterbore (1-2; Aperture 2-2); The cylindrical shape stack shell of said positioning block (4) places said two counterbore (1-2; In the cavity that 2-2) surrounds, (1-2 2-2) and between the said positioning block (4) also is respectively equipped with the sealed member that is used to prevent oil leak at said two counterbores.
3. segmented crankshaft structure according to claim 2 is characterized in that: described sealed member is y-type seal ring (6).
4. according to claim 2 or 3 described segmented crankshaft structures, it is characterized in that: the thickness L of the round ring boss (4-2) of said positioning block (4) is 2～7 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103823153A CN102364133A (en) | 2011-11-28 | 2011-11-28 | Sectional type crankshaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103823153A CN102364133A (en) | 2011-11-28 | 2011-11-28 | Sectional type crankshaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102364133A true CN102364133A (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103823153A Pending CN102364133A (en) | 2011-11-28 | 2011-11-28 | Sectional type crankshaft structure |
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| CN (1) | CN102364133A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777481A (en) * | 2012-07-30 | 2012-11-14 | 浙江越剑机械制造有限公司 | Crankshaft used for high-speed warp knitting machine |
| CN102788112A (en) * | 2012-07-26 | 2012-11-21 | 湖南奔腾动力科技有限公司 | Engine crankshaft vibration reduction mechanism and method |
| CN102899802A (en) * | 2012-05-16 | 2013-01-30 | 常州市武进五洋纺织机械有限公司 | Warp knitting machine with crank shafts |
| CN105839286A (en) * | 2016-06-13 | 2016-08-10 | 海宁科源经编有限公司 | Pendulum shaft structure of wide-width high-speed warp knitting machine |
Citations (10)
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|---|---|---|---|---|
| JPS5973618A (en) * | 1982-10-18 | 1984-04-25 | Yamaha Motor Co Ltd | Crankshaft of internal combustion engine |
| CN1041430A (en) * | 1988-09-22 | 1990-04-18 | 尼尤维·斯克普工程科研实验所 | Be used for that the described a pair of axle of the coupling of transferring rotational motion may be an arranged off-centre between a pair of axle |
| CN200989386Y (en) * | 2006-12-04 | 2007-12-12 | 上海连成（集团）有限公司 | Drum type shaft coupling assembly for shaft coupling |
| CN201125933Y (en) * | 2007-11-14 | 2008-10-01 | 青年汽车集团有限公司 | Automobile engine crankshaft |
| CN201198862Y (en) * | 2008-05-21 | 2009-02-25 | 宁波中策动力机电集团有限公司 | Sectional type crankshaft structure |
| CN201228735Y (en) * | 2008-07-17 | 2009-04-29 | 宝山钢铁股份有限公司 | Coupling device for thin oil pump |
| CN201339660Y (en) * | 2009-01-22 | 2009-11-04 | 江苏恒力化纤有限公司 | Coupling junction |
| CN201802772U (en) * | 2010-09-09 | 2011-04-20 | 阀安格水处理系统(太仓)有限公司 | Shaft-shaft connecting structure |
| CN102126161A (en) * | 2011-02-23 | 2011-07-20 | 武汉重型机床集团有限公司 | Multi-spindle distance adjusting device |
| CN202370988U (en) * | 2011-11-28 | 2012-08-08 | 常州市润源经编运用工程技术研究中心有限公司 | Sectional crankshaft |
-
2011
- 2011-11-28 CN CN2011103823153A patent/CN102364133A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5973618A (en) * | 1982-10-18 | 1984-04-25 | Yamaha Motor Co Ltd | Crankshaft of internal combustion engine |
| CN1041430A (en) * | 1988-09-22 | 1990-04-18 | 尼尤维·斯克普工程科研实验所 | Be used for that the described a pair of axle of the coupling of transferring rotational motion may be an arranged off-centre between a pair of axle |
| CN200989386Y (en) * | 2006-12-04 | 2007-12-12 | 上海连成（集团）有限公司 | Drum type shaft coupling assembly for shaft coupling |
| CN201125933Y (en) * | 2007-11-14 | 2008-10-01 | 青年汽车集团有限公司 | Automobile engine crankshaft |
| CN201198862Y (en) * | 2008-05-21 | 2009-02-25 | 宁波中策动力机电集团有限公司 | Sectional type crankshaft structure |
| CN201228735Y (en) * | 2008-07-17 | 2009-04-29 | 宝山钢铁股份有限公司 | Coupling device for thin oil pump |
| CN201339660Y (en) * | 2009-01-22 | 2009-11-04 | 江苏恒力化纤有限公司 | Coupling junction |
| CN201802772U (en) * | 2010-09-09 | 2011-04-20 | 阀安格水处理系统(太仓)有限公司 | Shaft-shaft connecting structure |
| CN102126161A (en) * | 2011-02-23 | 2011-07-20 | 武汉重型机床集团有限公司 | Multi-spindle distance adjusting device |
| CN202370988U (en) * | 2011-11-28 | 2012-08-08 | 常州市润源经编运用工程技术研究中心有限公司 | Sectional crankshaft |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899802A (en) * | 2012-05-16 | 2013-01-30 | 常州市武进五洋纺织机械有限公司 | Warp knitting machine with crank shafts |
| CN102788112A (en) * | 2012-07-26 | 2012-11-21 | 湖南奔腾动力科技有限公司 | Engine crankshaft vibration reduction mechanism and method |
| CN102777481A (en) * | 2012-07-30 | 2012-11-14 | 浙江越剑机械制造有限公司 | Crankshaft used for high-speed warp knitting machine |
| CN102777481B (en) * | 2012-07-30 | 2014-12-10 | 浙江越剑机械制造有限公司 | Crankshaft used for high-speed warp knitting machine |
| CN105839286A (en) * | 2016-06-13 | 2016-08-10 | 海宁科源经编有限公司 | Pendulum shaft structure of wide-width high-speed warp knitting machine |
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Application publication date: 20120229 |