CN102500541A - Step adjusting device of linear eccentricity of eccentric shaft - Google Patents
Step adjusting device of linear eccentricity of eccentric shaft Download PDFInfo
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- CN102500541A CN102500541A CN2011103071433A CN201110307143A CN102500541A CN 102500541 A CN102500541 A CN 102500541A CN 2011103071433 A CN2011103071433 A CN 2011103071433A CN 201110307143 A CN201110307143 A CN 201110307143A CN 102500541 A CN102500541 A CN 102500541A
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Abstract
The invention provides a step adjusting device of the linear eccentricity of an eccentric shaft, comprising a circular disc, a shaft cover, an eccentric disc, the eccentric shaft, a positioning and locking device, a pin mechanism and a driving shaft. The axial movement of the eccentric disc can be limited through three steel balls which are equivalently and uniformly distributed in a V-shaped groove of the outer circle of the eccentric disc, and the eccentric adjustment can be realized through rotating the eccentric disc; a pull pin is pushed into a pin hole through utilizing a spring, and a positioning pin and a screw do not need to be detached, thereby avoiding influences caused by artificial factors; and the step adjusting device provided by the invention has the advantages that the operation is simple and fast, the adjusting precision of the linear eccentricity is ensured by the position precision of the pin hole, and the precision retainability is good.
Description
Technical field
The present invention relates to a kind of adjusting device, especially a kind of eccentric throw adjusting device that is applicable to mechanical type eccentric shaft exciting.
Background technology
Some eccentric stiffener need be adjusted eccentric throw, and for example the amplitude of sine excitation device needs adjustment on request, and method of adjustment has level adjustment and stepless adjustment general the branch.When servo apply hydraulic pressure hydraulic oil cylinder driving scheme, cooperate the ability that just has automatic change amplitude through program setting with displacement transducer.When adopting mechanical type eccentric shaft exciting scheme; The eccentric throw adjustment is trouble relatively; Usually adopt leading screw and nut mechanism and arrangement guide rail and trip bolt to move and realize eccentric stepless adjustment through the eccentric shaft relative rotation axi heart; Its adjustment precision can be through being provided with rule by the visual assurance of operator, and therefore, adjustment precision and repeatable accuracy are difficult for guaranteeing.If will improve the eccentric throw degree of regulation, can adopt first coarse adjustment, finely tune repeatedly according to the actual displacement that the displacement transducer actual measurement is set again, adjust more loaded down with trivial details.Most of application scenarios usually only need several kinds of limited eccentric throw adjustment, and utility model patent " vehicle shock absorber test-bed " (ZL95226272.X); Proposed a kind of eccentric method of adjustment of level that has, adjusted through the required eccentric throw of mutually opposed realization of different pin holes on adjustment crank and the adjustment disk, but need unclamp screw; And extract latch and insert different pin-and-holes; And then tighten trip bolt, and adjust loaded down with trivial detailsly, and artificial plug latch damages latch easily.Patent of invention " eccentricity adjusting method of vertical numerically controlled grinder to process eccentric orifice and device " (application number: 200910053872.3) proposed a kind ofly to realize the accurately method of adjustment of different eccentric throws, be applicable to the adjustment of large eccentricity distance through the digitlization SERVO CONTROL.But need to increase the asessory shaft of servo-drive, mechanism is complicated, and cost is higher, and application is restricted.
Summary of the invention
The objective of the invention is in order to overcome the existing in prior technology defective, provide a kind of eccentric shaft eccentric throw of simple and fast that a grade adjusting device is arranged.
In order to achieve the above object, the technical scheme of the present invention's employing is following:
A kind of eccentric shaft eccentric throw has a grade adjusting device, comprises driving shaft 1, disk 2, upper shield 3, eccentric disc 4 eccentric shafts 7, fixing and locking device 9, bolt mechanism 10; Said disk 2 is provided with and said driving shaft 1 coaxial mounted centre bore, and the end face of said disk 2 one ends is provided with the concentric counterbore greater than centre bore, and the end face of the other end of said disk 2 is provided with the eccentric counterbore greater than centre bore; Hole wall place near the concentric counterbore of said disk 2 is equipped with a bolt mechanism 10; The eccentric axis B place of said eccentric disc 4 is provided with the circular hole of the said eccentric shaft 7 of an assembling; The excircle of said eccentric disc 4 is provided with a V-type annular groove 4a; Said eccentric disc 4 is some pin-and-hole 4c that the same diameter Distribution circumference in the center of circle is provided with the same diameter same depth near an end face of said disk 2 with said eccentric disc (4) center line; One screwed hole and outer end conducting are arranged at each pin-and-hole bottom; The cylindrical of said upper shield 3 is the stairstepping disk of size diameter; Its smaller diameter end is installed in the eccentric counterbore of said disk 2, and the V-type annular groove 4a that the excircle of corresponding said eccentric disc 4 is provided with on the excircle of larger diameter end is evenly equipped with three one section holes that are provided with screw thread that is used for installing and locating locking device 9.
Wherein, above-mentioned described bolt mechanism 10 is made up of finger 10a, end cap 10b and stage clip 10c; Wherein said finger 10a is the stairstepping minor axis, and the enlarged diameter section end has a blind hole, and said stage clip 10c one end is packed in this blind hole, and the other end is positioned at the inboard counterbore of said end cap 10b, and said end cap 10b is fixedly connected with said disk 2; Said finger 10a reduced diameter section is aimed at the distribution circle at some pin-and-hole 4c center of said eccentric disc 4, and its end is provided with chamfering.
Above-mentioned described fixing and locking device 9 is made up of steel ball 9a, planchet piece 9b and holding screw 9c; Wherein said steel ball 9a packs in the hole on said upper shield 3 excircles; And be partially submerged in the V-type annular groove 4a of said eccentric disc 4, a planchet piece 9b also is housed, planchet piece 9b and Kong Weixiao matched in clearance in the hole; One side is provided with 90 ° of taper holes and contacts with steel ball 9a, and 9c compresses by holding screw.
Above-mentioned described eccentric disc 4 is a matched in clearance with said upper shield 3, is provided with gap delta between said eccentric disc 4 and the said disk 2.
The number of above-mentioned described pin-and-hole (4c) is the corresponding number of said adjusting device adjustment progression.
A kind of eccentric shaft eccentric throw of the present invention has grade adjusting device compared with prior art; Its major advantage and beneficial effect are: the axial of 3 steel ball restriction eccentric discs that is uniformly distributed with through five equilibrium in eccentric disc cylindrical V-shaped groove can realize eccentric throw adjustment through the rotation of eccentric disc with moving radially also; Utilize spring that finger is pushed pin-and-hole automatically; Need not dismantle alignment pin and screw during the adjustment eccentric throw, avoid the human factor influence, simple and quick; Eccentric throw adjustment precision guarantees that by the positional precision of pin-and-hole precision stability is good.
Description of drawings
Fig. 1 is the front view that a kind of eccentric shaft eccentric throw of the present invention has grade adjusting device;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the partial enlarged view of Fig. 2 bottom;
Among the figure: 1, driving shaft, 2, disk, 3, upper shield, 4, eccentric disc, 4a, V-type annular groove, 4b, dial hole; 4c, pin-and-hole, 5, screw one, 6, screw two, 7, eccentric shaft, 8, holding screw one; 9, fixing and locking device, 9a, steel ball, 9b, planchet piece, 9c, holding screw two; 10, bolt mechanism, 10a, finger, 10b, end cap, 10c, stage clip, 11, screw three.
The specific embodiment
Being used for vehicle shock absorber test-bed through the present invention below is specific embodiment, and combines accompanying drawing, does further bright specifically to technical scheme of the present invention.
Embodiment:
Fig. 1 is a front view of the present invention, is made up of disk 2, upper shield 3, eccentric disc 4, eccentric shaft 7, fixing and locking device 9, bolt mechanism 10 and driving shaft 1 (see figure 2).Eccentric disc 4 centers and disk 2 eccentric installations; Fixing with 6 screws 3 11 with disk 2; Upper shield 3 cylindrical trisection posistions and with the plane of its axis normal in be provided with 3 screwed holes, this Kong Youyi section unthreaded hole and one section screwed hole are formed, and a cover fixing and locking device 9 respectively is housed in the hole.Eccentric disc 4 is set in the hole of upper shield 3, in the hole at 0.5e place, eccentric disc 4 center, eccentric shaft 7 is being installed, and is fixing with eccentric disc 4 by 4 screws 26.
Fig. 2 is the A-A cutaway view of Fig. 1, has expressed the assembly relation between driving shaft 1, disk 2, upper shield 3, eccentric disc 4, eccentric shaft 7, fixing and locking device 9 and the bolt mechanism 10.Disk 2 and driving shaft 1 concentric installation, fixing with 4 screws 1.The boss of upper shield 3 cooperates installation with the eccentric counterbore of disk 2.The left side axle journal of eccentric shaft 7 cooperates installation with the eccentric orfice of eccentric disc 4, is fastenedly connected with 4 screws 26 and eccentric disc 4 with the step end face of eccentric shaft 7.Bolt mechanism 10 is made up of finger 10a, end cap 10b and stage clip 10c; Finger 10a is a stairstepping straight pin, and larger diameter end is provided with a circle blind hole, is used to place stage clip 10c; The smaller diameter end head is provided with chamfering, is convenient to finger 10a and under the boosting of stage clip 10c, imports pin-and-hole 4c.Through finger 10a not only realized eccentric disc 4 with respect to the circumferential registration of disk 2 but also through eccentric disc 4 to eccentric shaft 7 transmission of drive force squares.
Fig. 3 is the partial enlarged view of Fig. 2 bottom, has represented the CONSTRUCTED SPECIFICATION of fixing and locking device 9 and bolt mechanism 10 more clearly, and finger 10a is for being ejected the state of pin-and-hole among the figure by holding screw 1.The cylindrical of eccentric disc 4 is provided with V-type annular groove 4a; In three holes that on upper shield 3, are uniformly distributed with, fixing and locking device 9 is housed, comprises steel ball 9a, planchet piece 9b and holding screw two 9c respectively; The major part of steel ball 9a is positioned at the hole of upper shield 3; By the taper seat centering of planchet piece 9b end, a part is positioned at V-ring groove 4a, through holding screw 9c steel ball 9a is abutted against on two conical surfaces of V-ring groove 4a.Three cover fixing and locking devices 9 are fixed the radial and axial maintenance of eccentric disc 4.
When need adjustment eccentric throw; Suitably unscrew three holding screw two 9c on the upper shield 3; Corresponding holding screw one 8 precessions of pin-and-hole 4c with finger 10a place make finger 10a withdraw from pin-and-hole 4c, and an available then Metallic rod is inserted in the dial hole 4b and dialled eccentric disc 4 and rotate; Can make the numbering mark through each pin-and-hole 4c, so that finger 10a gets in the pairing pin-and-hole 4c of required eccentric throw to eccentric disc 4.Also holding screw 1 can be installed, be inserted with Metallic rod in the pin-and-hole 4c of finger 10a finger 10a is extruded pin-and-hole 4c, and insert dial hole 4b rotating eccentricity dish 4 with Metallic rod simultaneously and rotate.
It between the hole of the cylindrical of eccentric disc 4 and upper shield 3 matched in clearance; Satisfy the requirement that eccentric disc 4 can rotate in the hole of upper shield 3; The medial surface face of eccentric disc 4 and the side of disk 2 keep certain distance δ; Make that eccentric disc 4 with disk 2 grazing does not take place, alleviates resistance when the adjustment eccentric throw is rotated eccentric disc 4.In addition, when guaranteeing that structurally finger 10a is pressed onto the end (the big end of finger 10a contacts with end cap 10b), in the end face δ scope of finger 10a.Guarantee to have grade an eccentric throw adjustment precision and a repeatability precision by the precision of pin-and-hole 4c position and the quality of fit of pin-and-hole 4c and finger 10a.
Claims (5)
1. an eccentric shaft eccentric throw has a grade adjusting device, it is characterized in that: comprise driving shaft (1), disk (2), upper shield (3), eccentric disc (4), eccentric shaft (7), fixing and locking device (9), bolt mechanism (10); Said disk (2) is provided with and the coaxial mounted centre bore of said driving shaft (1), and the end face of said disk (2) one ends is provided with the concentric counterbore greater than centre bore, and the end face of the other end of said disk (2) is provided with the eccentric counterbore greater than centre bore; Hole wall place near the concentric counterbore of said disk (2) is equipped with a bolt mechanism (10); The eccentric axis B place of said eccentric disc (4) is provided with the circular hole of a said eccentric shaft of assembling (7); The excircle of said eccentric disc (4) is provided with a V-type annular groove (4a); Said eccentric disc (4) is some pin-and-holes (4c) that the same diameter Distribution circumference in the center of circle is provided with the same diameter same depth near an end face of said disk (2) with said eccentric disc (4) center line; One screwed hole and outer end conducting are arranged at each pin-and-hole bottom; The cylindrical of said upper shield (3) is the stairstepping disk of size diameter; Its smaller diameter end is installed in the eccentric counterbore of said disk (2), and the V-type annular groove (4a) that the excircle of corresponding said eccentric disc (4) is provided with on the excircle of larger diameter end is evenly equipped with three one section holes that are provided with screw thread that is used for installing and locating locking device (9).
2. a kind of eccentric shaft eccentric throw according to claim 1 has a grade adjusting device, it is characterized in that: described bolt mechanism (10) is made up of finger (10a), end cap (10b) and stage clip (10c); Wherein said finger (10a) is the stairstepping minor axis, and the enlarged diameter section end has a blind hole, and said stage clip (10c) end is packed in this blind hole, and the other end is positioned at the inboard counterbore of said end cap (10b), and said end cap (10b) is fixedly connected with said disk (2); Said finger (10a) reduced diameter section is aimed at the distribution circle at some pin-and-holes (4c) center of said eccentric disc (4), and its end is provided with chamfering.
3. a kind of eccentric shaft eccentric throw according to claim 1 has a grade adjusting device; It is characterized in that: described fixing and locking device (9) is made up of steel ball (9a), planchet piece (9b) and holding screw (9c); Wherein said steel ball (9a) is packed in the hole on said upper shield (3) excircle; And be partially submerged in the V-type annular groove (4a) of said eccentric disc (4), a planchet piece (9b) also is housed, planchet piece (9b) and Kong Weixiao matched in clearance in the hole; One side is provided with 90 ° of taper holes and contacts with steel ball (9a), and (9c) compresses by holding screw.
4. a kind of eccentric shaft eccentric throw according to claim 1 has a grade adjusting device, it is characterized in that: described eccentric disc (4) is a matched in clearance with said upper shield (3), is provided with gap delta between said eccentric disc (4) and the said disk (2).
5. a kind of eccentric shaft eccentric throw according to claim 1 and 2 has a grade adjusting device, it is characterized in that: the number of described pin-and-hole (4c) is the corresponding number of said adjusting device adjustment progression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110307143 CN102500541B (en) | 2011-10-10 | 2011-10-10 | Step adjusting device of linear eccentricity of eccentric shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110307143 CN102500541B (en) | 2011-10-10 | 2011-10-10 | Step adjusting device of linear eccentricity of eccentric shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102500541A true CN102500541A (en) | 2012-06-20 |
| CN102500541B CN102500541B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110307143 Expired - Fee Related CN102500541B (en) | 2011-10-10 | 2011-10-10 | Step adjusting device of linear eccentricity of eccentric shaft |
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| CN (1) | CN102500541B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406751A (en) * | 2013-08-05 | 2013-11-27 | 江苏兴达钢帘线股份有限公司 | Automatical disassembling device for spool |
| CN104841629A (en) * | 2015-05-07 | 2015-08-19 | 上海大学 | Guide rail type circumferential oscillating mechanism stepwise adjustable in amplitude |
| CN107497655A (en) * | 2017-08-23 | 2017-12-22 | 昆明理工大学 | One kind reverses chaotic vibration vibrator |
| CN110340632A (en) * | 2019-07-23 | 2019-10-18 | 上海电气风电集团有限公司 | A kind of installation method of external tooth type yaw system |
| CN111152134A (en) * | 2020-01-21 | 2020-05-15 | 科德数控股份有限公司 | Grinding wheel dresser |
| CN112440220A (en) * | 2019-08-27 | 2021-03-05 | 北京宝沃汽车有限公司 | Locating pin mounting seat |
| CN113084735A (en) * | 2021-04-25 | 2021-07-09 | 北京无线电测量研究所 | Eccentric adjustment mechanism of many adaptability |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000851B (en) * | 2016-07-01 | 2018-07-06 | 江苏科技大学 | A kind of eccentric shaft is away from having grade and stepless adjusting apparatus and method of adjustment |
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| CN101049675A (en) * | 2007-05-11 | 2007-10-10 | 常州宝菱重工机械有限公司 | Eccentric shaft with adjustable eccentricity |
| CN201645175U (en) * | 2010-01-08 | 2010-11-24 | 宁波合力机泵有限公司 | Crankshaft and crank processing device for lathe |
| CN201950501U (en) * | 2011-01-27 | 2011-08-31 | 临汾华翔纬泰精工机械有限公司 | Clamp for eccentric crankshaft of lathe |
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2011
- 2011-10-10 CN CN 201110307143 patent/CN102500541B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU648455A1 (en) * | 1975-01-27 | 1979-02-27 | i ^т ai^iiiEpTp | Engraving device working head |
| JPS63149417A (en) * | 1986-12-11 | 1988-06-22 | Totsuki Kk | Precision shaft coupling |
| JPH10252752A (en) * | 1997-03-13 | 1998-09-22 | Casio Electron Mfg Co Ltd | Drive transmission device |
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| CN1357682A (en) * | 2001-12-28 | 2002-07-10 | 彭利 | Oscillating-blade hydraulic pump and motor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406751A (en) * | 2013-08-05 | 2013-11-27 | 江苏兴达钢帘线股份有限公司 | Automatical disassembling device for spool |
| CN103406751B (en) * | 2013-08-05 | 2016-01-06 | 江苏兴达钢帘线股份有限公司 | I-beam wheel automatic handling device |
| CN104841629A (en) * | 2015-05-07 | 2015-08-19 | 上海大学 | Guide rail type circumferential oscillating mechanism stepwise adjustable in amplitude |
| CN107497655A (en) * | 2017-08-23 | 2017-12-22 | 昆明理工大学 | One kind reverses chaotic vibration vibrator |
| CN110340632A (en) * | 2019-07-23 | 2019-10-18 | 上海电气风电集团有限公司 | A kind of installation method of external tooth type yaw system |
| CN112440220A (en) * | 2019-08-27 | 2021-03-05 | 北京宝沃汽车有限公司 | Locating pin mounting seat |
| CN111152134A (en) * | 2020-01-21 | 2020-05-15 | 科德数控股份有限公司 | Grinding wheel dresser |
| CN113084735A (en) * | 2021-04-25 | 2021-07-09 | 北京无线电测量研究所 | Eccentric adjustment mechanism of many adaptability |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102500541B (en) | 2013-11-06 |
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Address after: 212028 Zhenjiang, Dantu Metro Industrial Park Rui East Road, No. 9 Patentee after: Jiangsu University of Science and Technology Address before: 212003 Zhenjiang City, Jiangsu province dream Creek Road, No. 2 Patentee before: Jiangsu University of Science and Technology |
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Granted publication date: 20131106 Termination date: 20171010 |
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