WO2019075930A1 - Engrenage hélicoïdal doté d'un dispositif de suppression de jeu - Google Patents

Engrenage hélicoïdal doté d'un dispositif de suppression de jeu Download PDF

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Publication number
WO2019075930A1
WO2019075930A1 PCT/CN2018/000150 CN2018000150W WO2019075930A1 WO 2019075930 A1 WO2019075930 A1 WO 2019075930A1 CN 2018000150 W CN2018000150 W CN 2018000150W WO 2019075930 A1 WO2019075930 A1 WO 2019075930A1
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WO
WIPO (PCT)
Prior art keywords
gear
hole
backlash
adjusting screw
disk
Prior art date
Application number
PCT/CN2018/000150
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English (en)
Chinese (zh)
Inventor
高志坚
Original Assignee
常州机电职业技术学院
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Publication date
Application filed by 常州机电职业技术学院 filed Critical 常州机电职业技术学院
Publication of WO2019075930A1 publication Critical patent/WO2019075930A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • F16H55/18—Special devices for taking up backlash

Definitions

  • the invention relates to the technical field of gear transmission, in particular to a helical gear with a backlash device capable of eliminating the flank clearance of a helical gear transmission.
  • Both the gear and the gear have a tooth-side clearance.
  • a gear capable of eliminating the flank clearance must be used in order to eliminate the amount of vacancy.
  • the anti-backlash helical gear is a commonly used gear that eliminates the backlash.
  • the patent publication CN205605771U discloses a structure of a backlash helical gear, which is characterized in that it comprises a left-side gear and a right-side gear which are disposed between the left and right half gears.
  • the beak spring further includes a backing ring, a sliding column and an adjusting nut.
  • the backing ring has an annular shape, and the backing ring has a concave tapered surface, and the backing ring is embedded on the left or right side gear and the tapered surface faces outward.
  • the backing ring is coaxial with the left or right half gear;
  • the shape of the sliding column is a cylinder having an "O" shape in cross section, and one end of the sliding column is provided with a screw, and two legs are longitudinally opened on the sliding column.
  • the inclined bottom groove is shallower than the groove on one side of the screw and away from the groove on one side of the screw; the left and right half gears are axially opened in an O shape with an "O" shape in cross section.
  • the sliding column is installed in the O-shaped hole of the left and right half gears; the two end legs of the spring are respectively inserted into the inclined bottom groove of the two sliding columns; the adjusting nut is screwed on the sliding column On the screw.
  • the anti-backlash working principle of the anti-backlash helical gear is to tighten the adjusting nut and force the sliding column to slide along the O-shaped hole of the left and right half gears in the direction of the adjusting nut, and the bottom surface of the inclined bottom groove will be
  • the end of the ⁇ spring is jacked up in the direction of the slot, so that the ⁇ spring is elastically deformed and expands radially outward along the helical gear, and the ⁇ spring is outwardly expanded and squeezed to the concave cone of the backing ring, pushing the left half
  • the gear and the right half gear are axially separated to achieve the purpose of backlash.
  • the disadvantage of the anti-backlash helical spur gear is that the axial direction of the anti-backlash helical spur gear must have a space for accommodating the adjusting nut and the overhanging screw, so that the transmission system with compact structure cannot adopt the anti-backlash helical tooth cylinder.
  • An object of the present invention is to provide a helical gear having a backlash device capable of eliminating a flank clearance of a helical spur gear transmission.
  • the anti-backlash device of the helical spur gear has versatility and does not need to be in a helical cylinder.
  • An additional structure is arranged on the gear, and sandwiched between the two coaxially mounted helically toothed cylindrical gears can form a backlash helical gear together with the two helically toothed cylindrical gears.
  • the technical solution adopted by the present invention is: a helical spur gear having a backlash device, which is composed of a coaxially mounted mesh gear and an E gear and a backlash device, wherein the mesh gear and the B gear are both
  • the helical gear has the same gear parameters;
  • the anti-backlash device is sandwiched between the mesh gear and the b gear, and the anti-backlash device comprises a backlash plate, an adjusting screw, a slider and a push rod;
  • the backlash disk is a disk shape
  • the disc surface of the anti-backlash disc is opposite to the end surface of the nail gear and the gear;
  • the shaft has a shaft hole, the shaft hole of the anti-backlash disc is coaxial with the gear shaft hole; and
  • the disc has a special-shaped hole on the disc surface of the anti-backlash disc
  • the shaped hole is a through hole;
  • a concave tapered surface is arranged on the disk surface of the ripper disk, and the concave tapered surface
  • the anti-backlash principle of the anti-backlash device of the helical gear is: rotating the adjusting screw so that the slider on the adjusting screw moves along the axial direction of the adjusting screw, and the push rod fixed on the slider also moves, the end of the push rod The portion slides on the concave tapered surface of the anti-backlash disk.
  • the end portion of the push rod moves from the lower portion of the concave tapered surface to the concave tapered surface.
  • the A and G gears are respectively moved in the axial direction away from the backlash plate, and the axial distance between the A gear and the B gear is enlarged, thereby achieving the purpose of eliminating the gap.
  • the anti-backlash device of the helically toothed cylindrical gear does not need to have an additional structure on the helical gear, and is clamped on the two coaxial installation. Between the cylindrical gears, a type of anti-backlash device can be applied to helical gears of different diameters, so it has versatility and good applicability; 2 the two disc faces of the anti-backlash disc are provided with concave tapered surfaces.
  • the backlash range is doubled; 3 the head of the adjusting screw is exposed to the cylinder of the snubber disk, and the screwdriver can be rotated from the radial direction to adjust the screw, so that the backlash adjustment is convenient; 4 in the axial direction of the helical gear Adjusting the nut, there is no need to reserve space for the screw to extend, so the structure is compact; 5 because of the versatility, the structure can be standardized, the production can be batched; 6 there are no difficult parts, plus mass production, so the cost Lower.
  • the invention also has the advantages of the patent with the authorization bulletin number CN205605771U: 1 can automatically eliminate the flank clearance caused by the tooth wear; 2 can withstand a large axial force during the transmission, and thus the spiral of the helical gear The angle can be designed to be relatively large; 3 when the taper angle of the concave tapered surface of the anti-backlash disk is large to a certain extent, a self-locking effect occurs, in other words, even if there is a large axial force during transmission, the nail gear is pushed.
  • the flank clearance is generated by moving together with the E gear in the axial direction.
  • the helical spur gear having the anti-backlash device of the present invention further includes a flat key, and the mesh gear is provided with a cylindrical boss coaxial with the pin gear on the end face of the b gear, the gear of the b gear The shaft hole is sleeved on the cylindrical boss of the nail gear, and the flat gear is used to restrict the rotation of the electric gear with respect to the nail gear, and the shaft hole of the anti-backlash disc is set on the cylindrical boss.
  • the helical gear having the anti-backlash device of the present invention further includes a thrust spring, the cylindrical boss of the mesh gear is provided with an annular groove, the thrust spring is spiral, and the thrust spring is mounted in the annular groove.
  • the outer diameter of the thrust spring is larger than the outer diameter of the cylindrical boss, and the inner diameter of the thrust spring is smaller than the outer diameter of the cylindrical boss.
  • One end of the thrust spring bears against the double gear and the other end faces the side of the annular groove.
  • the function of the thrust spring is to block the escape of the E-gear from the cylindrical boss of the A-gear, so that the A-gear and the E-gear and the anti-backlash device sandwiched between them are assembled into one piece.
  • the second is the thrust of the thrust spring.
  • Figure 1 is a schematic view showing the structure of a helical gear having a backlash device
  • FIG. 2 is a schematic structural view of a helical spur gear having a backlash device, which is a front view, and the cut position of FIG. 1 is indicated;
  • Figure 3 is a schematic structural view of a backlash device
  • Figure 4 is a schematic view showing the structure of the anti-backlash device, which is a front view showing the cutting position of Figure 3 and the cutting position of Figure 5;
  • Figure 5 is a cross-sectional view taken along line C-C of Figure 4, showing four pushers fixed to one slider;
  • Figure 6 is a schematic view showing the structure of the anti-backlash device in the simplified structure of Figure 3, wherein the simplified backlash plate has only one disk surface provided with a concave tapered surface;
  • Figure 7 is a schematic view showing the structure of the anti-backlash device simplified in the structure of Figure 5, the simplified backlash plate has only one disk surface provided with a concave tapered surface; and shows that two sliders are fixed on one slider ;
  • Figure 8 is a structural schematic view of a helically toothed cylindrical gear having a backlash device, illustrating that the end of the push rod moves from a lower portion of the concave tapered surface to a concave tapered surface as the slider moves away from the axial hole. The high point, which in turn pushes the A gear and the B gear to move away from the backlash plate;
  • Figure 9 is a front elevational view of a helically toothed cylindrical gear having a backlash device, in which a pinion gear is not shown, the cutaway position of Figure 8 is indicated, illustrating that when the slider is moved away from the axle bore, The end of the push rod then moves from the lower part of the concave tapered surface to the high point of the concave tapered surface, thereby pushing the mesh gear and the B gear to move away from the backlash plate;
  • Figure 10 is a schematic structural view of the helical gear with improved anti-backlash device.
  • the gear in the figure is provided with a cylindrical boss.
  • the gears and the anti-backlash plate are set on the cylindrical boss of the nail gear, and the cylindrical boss is opened.
  • the markings in the drawing are: 1 - A gear, 11 - cylindrical boss, 12 - annular groove, 2 - E gear, 21 - gear shaft hole, 3 - anti-backlash disk, 31 - disk surface , 32 - shaft hole, 33 - shaped hole, 34 - concave cone, 35 - cylinder, 36 - light hole, 37 - blind hole, 4 - adjusting screw, 5 - slider, 6 - push rod, 7 - flat key, 8 - thrust spring.
  • a helical gear having a backlash device is composed of a coaxially mounted mesh gear 1 and an E gear 2 and a backlash device, and both the pin gear 1 and the b gear 2 are
  • the helical gear has the same gear parameters, and the mesh gear 1 and the b gear 2 pass the key so that the mesh gear 1 and the gear 2 cannot rotate relative to each other, and the mesh gear 1 or the gear 2 can move axially;
  • the anti-backlash device is sandwiched between the mesh gear 1 and the E gear 2, and the anti-backlash device comprises a backlash plate 3, an adjusting screw 4, a slider 5, and a push rod 6; as shown in Fig. 1, Fig. 2, Fig. 3, Fig.
  • the backlash disc 3 is a circular disc, and may also be an elliptical disc or a polygonal disc.
  • the disc surface 31 of the anti-backlash disc 3 is opposite to the end faces of the mesh gear 1 and the E-gear 2, and the anti-backlash disc 3 has a shaft hole. 32.
  • the shaft hole 32 of the snubber disk 3 is coaxial with the gear shaft hole 21, and the shaft hole 32 of the snubber disk 3 is sleeved on the shaft to radially position the ripper disk 3, so that the ripper disk 3 can only follow
  • the shaft is axially slipped; as shown in FIG. 3 and FIG.
  • two irregular holes 33 are formed in the disk surface 31 of the snubber disk 3, the shaped holes 33 are through holes, and the shaped holes 33 are symmetrically arranged, and the sash plate 3 is arranged.
  • two apertures 36 are formed in the direction perpendicular to the axis of the shaft hole 32 on the cylindrical surface 35 of the snubber disk 3, the optical apertures 36 are symmetrically arranged, and the optical apertures 36 are through holes and are connected to the shaped apertures 33.
  • Two or more optical holes 36 may be disposed on the snubber disk 3, and the snubber disk 3 is further provided with a blind hole 37 equal in number to the optical hole 36.
  • the blind hole 37 is coaxial with the optical hole 36, and one end of the blind hole 37 is The shaped hole 33 is closed, and the other end of the blind hole 37 is closed; as shown in FIGS.
  • the adjusting screw 4 is mounted in the light hole 36 and the blind hole 37 and can be rotated in the light hole 36 and the blind hole 37.
  • the slider 5 is placed in the special-shaped hole 33, and the slider 5 is provided with a threaded hole which cooperates with the adjusting screw 4.
  • the slider 5 is sleeved on the adjusting screw 4 and can be along the adjusting screw 4 with the rotation of the adjusting screw 4. Axial movement; as shown in FIG. 3, FIG. 4, FIG.
  • the push rod 6 is made of elastic material
  • the push rod 6 is fixed on the slider 5, and the end of the push rod 6 slides on the concave tapered surface 34 of the anti-backlash disc 3 as the slider 5 moves along the axial direction of the adjusting screw 4, and is fixed at 1
  • the push rods 6 on the sliders 5 are four (as shown in Figs. 3 and 5), and the push rods 6 fixed to one slider 5 may be two (as shown in Figs. 6 and 7). .
  • the helically toothed cylindrical gear having the anti-backlash device of the present invention further includes a flat key 7, which is disposed coaxially with the nail gear 1 on the end face of the E gear 2 Cylindrical boss 11, the gear shaft hole 21 of the gear 2 is sleeved on the cylindrical boss 11 of the pinion gear 1 and enables the arm gear 2 to slide axially on the cylindrical boss 11 and pass the flat key 7
  • the limit gear 2 is rotated relative to the pinion gear 1, and the shaft hole 32 of the ripstop disk 3 is sleeved on the cylindrical boss 11 so that the swash plate 3 can be axially slid on the cylindrical boss 11.
  • the helical gear having the anti-backlash device of the present invention further includes a thrust spring 8, and the cylindrical boss 11 of the mesh gear 1 is provided with an annular groove 12, the thrust spring 8 is a spiral shape, the thrust spring 8 is mounted in the annular groove 12, the outer diameter of the thrust spring 8 is larger than the outer diameter of the cylindrical boss 11, the inner diameter of the thrust spring 8 is smaller than the outer diameter of the cylindrical boss 11, and the one end of the thrust spring 8 is The E gear 2 is attached and the other end is placed against the side of the annular groove 12.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Abstract

L'invention concerne un engrenage hélicoïdal doté d'un dispositif de suppression de jeu, constitué d'un premier engrenage (1) et d'un second engrenage (2) qui sont montés de manière coaxiale, et d'un dispositif de suppression de jeu serré entre ces derniers. Selon l'invention, le dispositif de suppression de jeu comprend un disque de suppression de jeu (3), des tiges de vis de réglage (4), un bloc coulissant (5) et une tige de poussée (6) ; le disque de suppression de jeu (3) est pourvu d'un trou d'arbre (32) et d'un trou de forme spéciale (33) sur celui-ci ; une surface conique concave formée vers l'intérieur (34) est disposée sur une surface de disque (31) ; un trou optique (36) est formé radialement sur une surface cylindrique (35) et communique avec le trou de forme spéciale (33) ; un trou borgne (37) est formé sur le disque de suppression de jeu (3) et est coaxial au trou optique (36) ; une extrémité du trou borgne (37) communique avec le trou de forme spéciale (33) ; les tiges de vis de réglage (4) sont montées dans le trou optique (36) et le trou borgne (37) ; le bloc coulissant (5) est disposé dans le trou de forme spéciale (33) ; des trous taraudés qui correspondent aux tiges de vis de réglage (4) sont formés dans le bloc coulissant (5) et sont manchonnés sur les tiges de vis de réglage (4) ; la tige de poussée (6) est constituée d'un matériau élastique et est fixée sur le bloc coulissant (5) ; et la partie d'extrémité de la tige de poussée (6) peut coulisser sur la surface conique concave (34). L'engrenage hélicoïdal décrit doté du dispositif de suppression de jeu présente les avantages d'une bonne universalité, d'une large plage de suppression de jeu, d'être pratique à régler, d'une structure compacte, d'un faible coût et de pouvoir supporter une force axiale élevée, et l'engrenage hélicoïdal permet de supprimer automatiquement des jeux latéraux d'engrenage générés en raison de l'usure d'une dent d'engrenage.
PCT/CN2018/000150 2017-10-19 2018-04-23 Engrenage hélicoïdal doté d'un dispositif de suppression de jeu WO2019075930A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710976436.8A CN107654616B (zh) 2017-10-19 2017-10-19 具有消隙装置的斜齿圆柱齿轮
CN201710976436.8 2017-10-19

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107654616B (zh) * 2017-10-19 2024-02-02 常州机电职业技术学院 具有消隙装置的斜齿圆柱齿轮
CN108317234B (zh) * 2018-04-12 2023-08-04 常州机电职业技术学院 具有消隙功能的直齿圆柱齿轮
CN109282026B (zh) * 2018-10-23 2024-06-18 常州机电职业技术学院 锥齿轮传动间隙消隙装置
CN110725920B (zh) * 2019-10-21 2023-03-14 南通旺鑫新材料有限公司 具有消隙装置的斜齿圆柱齿轮

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08219238A (ja) * 1995-02-17 1996-08-27 Ichikoh Ind Ltd ギヤ装置
CN204610758U (zh) * 2015-03-28 2015-09-02 诸暨宝锐齿轮有限公司 无间隙齿轮组
CN105840774A (zh) * 2016-05-20 2016-08-10 天津泰威齿轮有限公司 一种无侧隙齿轮
CN105864397A (zh) * 2016-05-03 2016-08-17 常州机电职业技术学院 消隙斜齿圆柱齿轮
CN205937707U (zh) * 2016-08-30 2017-02-08 长城汽车股份有限公司 消隙齿轮组件及平衡轴总成
CN107654616A (zh) * 2017-10-19 2018-02-02 常州机电职业技术学院 具有消隙装置的斜齿圆柱齿轮
CN207393897U (zh) * 2017-10-19 2018-05-22 常州机电职业技术学院 具有消隙装置的斜齿圆柱齿轮

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472092A (en) * 1967-10-30 1969-10-14 Singer Co Antibacklash gear
CA1215860A (fr) * 1984-04-25 1986-12-30 Michael J. Ortman Dispositif anti-jeu de recul pour transmission a engrenages
US4747321A (en) * 1987-07-17 1988-05-31 Lockheed Corporation Anti-backlash gear assembly
US6419061B1 (en) * 2000-09-15 2002-07-16 Westinghouse Air Brake Technologies Corporation Anti-backlash mechanism
DE102004058178A1 (de) * 2004-12-02 2006-06-08 Man Nutzfahrzeuge Ag Zahnrad
DE102004058177B4 (de) * 2004-12-02 2021-02-11 Man Truck & Bus Se Zahnrad
KR102138771B1 (ko) * 2015-12-31 2020-07-29 남양넥스모 주식회사 전동식 조향장치 및 그 조립방법
CN205605771U (zh) * 2016-05-03 2016-09-28 常州机电职业技术学院 消隙斜齿圆柱齿轮
CN106286791B (zh) * 2016-08-16 2018-11-06 广东技术师范学院 一种传动齿轮齿侧间隙的自动消除方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08219238A (ja) * 1995-02-17 1996-08-27 Ichikoh Ind Ltd ギヤ装置
CN204610758U (zh) * 2015-03-28 2015-09-02 诸暨宝锐齿轮有限公司 无间隙齿轮组
CN105864397A (zh) * 2016-05-03 2016-08-17 常州机电职业技术学院 消隙斜齿圆柱齿轮
CN105840774A (zh) * 2016-05-20 2016-08-10 天津泰威齿轮有限公司 一种无侧隙齿轮
CN205937707U (zh) * 2016-08-30 2017-02-08 长城汽车股份有限公司 消隙齿轮组件及平衡轴总成
CN107654616A (zh) * 2017-10-19 2018-02-02 常州机电职业技术学院 具有消隙装置的斜齿圆柱齿轮
CN207393897U (zh) * 2017-10-19 2018-05-22 常州机电职业技术学院 具有消隙装置的斜齿圆柱齿轮

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