CN104400135A - Spiral gear machining mechanism with long cylindrical bearing - Google Patents

Spiral gear machining mechanism with long cylindrical bearing Download PDF

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Publication number
CN104400135A
CN104400135A CN201410559853.9A CN201410559853A CN104400135A CN 104400135 A CN104400135 A CN 104400135A CN 201410559853 A CN201410559853 A CN 201410559853A CN 104400135 A CN104400135 A CN 104400135A
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China
Prior art keywords
axle
thread piece
gear
extension
bearing
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CN201410559853.9A
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Chinese (zh)
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CN104400135B (en
Inventor
宋贝贝
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宋贝贝
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Abstract

The invention relates to a spiral gear machining mechanism with a long cylindrical bearing. The spiral gear machining mechanism with the long cylindrical bearing is used for machining a blank (85) and comprises a long cylindrical bearing, a base (3), a rotatable internal threaded part (1), an external threaded part (2) and a cylindrical workpiece bearing part (8), wherein the rotatable internal threaded part (1) comprises an upper cylindrical portion (11) and a lower chamber portion (12), the lower chamber portion (12) can circumferentially rotate and is axially fixedly connected with the base (3) through a bearing device (13), the external threaded part (2) is cylindrical, external threads are arranged on the outer circumferential surface and are jointed with internal threads in the upper cylindrical part (11), a cavity (31) is formed in the base (3), the cavity (31) has a top wall (32) and a driving motor (4) is installed in the cavity (31).

Description

A kind of helical gear organisation of working with oval tubular bearing
Technical field
The present invention relates to Gear Processing field, be specially the processing of helical gear.
Background technology
It is good that helical gear has engagement property, the advantage that stable drive, noise are little.Further, its registration is large, reduces the load of often pair of gear, improves the bearing capacity of gear.And it is few not produce the minimum teeth number that root cuts.Because its field of conjugate action is by little,---greatly---little, steadily, impact little, noise is little in engagement; Therefore there is large bearing capacity, gear life and stationarity can be improved; And volume is little.Helical gear drive is meshed by two helical gears and forms.Purposes transmits the motion between the crossed axis of space two.But, making trouble of helical gear, and be difficult to the teeth groove accuracy of form and position ensureing processing.
In particular, in some embody rule fields, such as flexible material (as plastics) processing, traditional intermetallic composite coating mode reduces costs being difficult to meet and improving the requirement of process velocity and precision.
Summary of the invention
The object of the invention is the processing mode in order to provide a kind of helical gear, it has the high advantage of the single teeth groove precision that is succinct, processing of process equipment.Further, can meet in some flexible materials for the requirement that processing cost (especially tooling cost) reduces.
According to aspects of the present invention, a kind of helical gear organisation of working with oval tubular bearing, for using when processing blank, it comprises: oval tubular bearing, pedestal, rotatable inner thread piece, external thread piece and columned Workpiece carrier part, wherein, rotatable inner thread piece comprises cylindrical portion and lower chambers portion, described lower chambers portion by bearing arrangement and pedestal circumference can rotate and axial restraint be connected, external thread piece is cylindric, its outer circumference surface is provided with external screw thread to engage with the internal thread in described upper cylindrical portion, cavity is provided with in pedestal, cavity has top wall, in described cavity, drive motors is installed, drive motors is connected with the lower end of the first axle, described first axle is through the left-hand portion of described top wall, and on the section that described first axle is positioned at above top wall, from bottom to up first gear and the first pinion are installed successively regularly, the inside circumference face in described lower chambers portion is fixedly installed ring gear, first gear engages with described ring gear, described rotatable inner thread piece can be driven when drive motors is rotated to rotate relative to pedestal, the bottom end face left-hand portion place of described external thread piece is provided with the cylindric extension in a left side to downward-extension regularly, the top of the first axle is inserted in described cylindric extension, and can coordinate rotationally with described cylindric extension,
Described columned Workpiece carrier part all overlaps with the axial line of external thread piece and described upper cylindrical portion, its upper end is provided with blank clamping structure, middle part, lower end is provided with the middle circle column extension to downward-extension regularly, the bottom of described columned Workpiece carrier part is connected with external thread piece by lower bearing, top is connected with ring-type capping by upper bearing (metal), described ring-type capping and external thread piece are fixed, thus, described columned Workpiece carrier part can rotate relative to described external thread piece; Second axle is installed the middle part axial restraint of described top wall, the lower end of described second axle is connected with described top wall, top is inserted in described middle circle column extension, and the axial line of described second axle overlaps with the axial line of described columned Workpiece carrier part, described second axle all can coordinate rotationally with described top wall and described middle circle column extension; Described second axle is installed with second largest gear and the second pinion from bottom to up successively, and second largest gear engages with the first pinion;
Described top wall is provided with the 3rd axle on the right side of described second axle with going back axial restraint, the lower end of described 3rd axle is connected with described top wall, top is inserted into the blind hole of the right side wall being arranged in described external thread piece, and described 3rd axle all can be coordinated rotationally with described top wall and described blind hole; Described 3rd axle is installed with the third-largest gear and third pinion from bottom to up successively, and the third-largest gear engages with the second pinion; Third pinion is cylindric; The outer circumference surface of described middle circle column extension is installed with the fourth-largest gear, and the fourth-largest gear engages with described third pinion;
Can be coordinated rotationally by the first long cylinder bearing between described second axle with described middle circle column extension; 3rd axle can be coordinated by the second long cylinder bearing rotationally with between described blind hole; The top of the first axle can be coordinated by the 3rd long cylinder bearing rotationally with between described cylindric extension; Described first, second, and third long cylinder bearing includes outer cylinder and inner cylinder, between outer cylinder and inner cylinder, there is cylindrical gap, in the lower end of described cylindrical gap, lower ball assembly is installed, upper end is provided with ball assembly, middle part between top and bottom is provided with middle ball assembly, thus, can rotate relative to each other between described outer cylinder and inner cylinder;
Thus, it is non-rotatable under described external thread piece is located while described first axle and described 3rd axle, when described drive motors rotates, described upper cylindrical portion drives external thread piece to move up and down, thus drives described columned Workpiece carrier part and blank to move up and down relative to pedestal; Meanwhile, drive motors can also be rotated relative to pedestal by Workpiece carrier part columned described in described gear drive and blank; And then, under the shear action of cutter, spiral alveolar can be processed on blank; When described columned Workpiece carrier part and blank rise to extreme higher position, the top of described first axle with between the cylindric extension in a described left side, the top of described second axle with between described middle circle column extension, the top of described 3rd axle with all still keep between described blind hole coordinating rotationally, described the fourth-largest gear still keeps engaging with cylindric described third pinion.
Pass through such scheme, owing to have employed the transmission of the gears at different levels of the fixing number of teeth, when thread pitch is certain, can ensure that the proportionate relationship between rotational angular velocity and riser speed is constant, therefore, which ensure that the precision of slot form in processing spiral alveolar process; And by specific vibrational power flow, the rotation that can realize circumferential angular speed slows down as far as possible, namely relative to the linear velocity risen, rotary speed is as far as possible slow, thus meets the shape need of helical gear.Meanwhile, what utilize power transmission shaft to rotate external thread sleeve is fixing, therefore, it is possible to ensure that it is not followed inner thread sleeve and rotates; And the central axes of middle power transmission shaft and the miscellaneous part of rotation, which ensure that the rotation of power transmission shaft can have nothing to do with the rotation of plummer, thus can rotate independently.What utilize uniqueness stretches out structure and blind hole structure, can ensure that basic fixed structure is constant while rising, thus can not affect the transmission of power transmission shaft and fix in the rotation of screw shell.Upward system tightly uses a drive motors, two kinds of motions that just can realize the rotation of Gear Processing is risen drive, ensure that the proportional precision between two kinds of motions simultaneously, therefore, the requirement of manufacturing equipment cost control can be met, the antagonism requirement of the cutting force for particular process material can be met simultaneously, and the form accuracy requirement of gear tooth slot can be met, it by the impact of processing environment confusion, does not all have for the maintenance of process equipment, the workflow management of process the tolerance degree increased.
Accompanying drawing explanation
Fig. 1 is the structural representation of organisation of working of the present invention when non-propradation;
Fig. 2 is the structural representation of organisation of working of the present invention after rising.
Fig. 3 is the structural representation of long cylinder bearing.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-3, the present invention is described in detail.
A kind of helical gear organisation of working with oval tubular bearing, for using when processing blank 85, it comprises: oval tubular bearing, pedestal 3, rotatable inner thread piece 1, external thread piece 2 and columned Workpiece carrier part 8, wherein, rotatable inner thread piece 1 comprises cylindrical portion 11 and lower chambers portion 12, described lower chambers portion 12 passes through bearing arrangement 13, and and pedestal 3 circumference can be rotated and axial restraint ground is connected, external thread piece 2 is cylindric, its outer circumference surface is provided with external screw thread to engage with the internal thread in described upper cylindrical portion 11, cavity 31 is provided with in pedestal 3, cavity 31 has top wall 32, in described cavity 31, drive motors 4 is installed, drive motors 4 is connected with the lower end of the first axle 5, described first axle 5 is through the left-hand portion of described top wall 32, and on the section that described first axle 5 is positioned at above top wall 32, first gear 51 and the first pinion 52 are installed from bottom to up successively regularly, the inside circumference face in described lower chambers portion 12 is fixedly installed ring gear 139, first gear 51 engages with described ring gear 139, described rotatable inner thread piece 1 can be driven when drive motors 4 is rotated to rotate relative to pedestal 3, the bottom end face left-hand portion place of described external thread piece 2 is provided with the cylindric extension 21 in a left side to downward-extension regularly, the top of the first axle 5 is inserted in described cylindric extension 21, and can coordinate rotationally with described cylindric extension 21,
Described columned Workpiece carrier part 8 all overlaps with the axial line of external thread piece 2 and described upper cylindrical portion 11, its upper end is provided with blank clamping structure, middle part, lower end is provided with the middle circle column extension 81 to downward-extension regularly, the bottom of described columned Workpiece carrier part 8 is connected with external thread piece 2 by lower bearing 83, top is connected with ring-type capping 84 by upper bearing (metal) 86, described ring-type capping 84 is fixed with external thread piece 2, thus, described columned Workpiece carrier part 8 can rotate relative to described external thread piece 2; Second axle 6 is installed the middle part axial restraint of described top wall 32, the lower end of described second axle 6 is connected with described top wall 32, top is inserted in described middle circle column extension 81, and the axial line of described second axle 6 overlaps with the axial line of described columned Workpiece carrier part 8, described second axle 6 all can coordinate rotationally with described top wall 32 and described middle circle column extension 81; Described second axle 6 is installed with from bottom to up successively second largest gear 61 and the second pinion 62, second largest gear 61 engages with the first pinion 52;
Described top wall 32 is provided with the 3rd axle 7 on the right side of described second axle 6 with going back axial restraint, the lower end of described 3rd axle 7 is connected with described top wall 32, top is inserted into the blind hole of the right side wall being arranged in described external thread piece 2, and described 3rd axle 7 all can be coordinated rotationally with described top wall 32 and described blind hole; Described 3rd axle 7 is installed with the third-largest gear 71 and third pinion 72 from bottom to up successively, and the third-largest gear 71 engages with the second pinion 62; Third pinion 72 is cylindric; The outer circumference surface of described middle circle column extension 81 is installed with the fourth-largest gear 82, and the fourth-largest gear 82 engages with described third pinion 72;
Can be coordinated rotationally by the first long cylinder bearing 63 between described second axle 6 with described middle circle column extension 81; 3rd axle 7 can be coordinated by the second long cylinder bearing 73 rotationally with between described blind hole; The top of the first axle 5 can be coordinated by the 3rd long cylinder bearing 53 rotationally with between described cylindric extension 21; Described first, second, and third long cylinder bearing 63,73,53 includes outer cylinder 91 and inner cylinder 92, between outer cylinder 91 and inner cylinder 92, there is cylindrical gap, in the lower end of described cylindrical gap, lower ball assembly 93 is installed, upper end is provided with ball assembly 94, middle part between top and bottom is provided with middle ball assembly 95, thus, can rotate relative to each other between described outer cylinder 91 and inner cylinder 92;
Thus, it is non-rotatable under described external thread piece 2 is located while described first axle 5 and described 3rd axle 7, when described drive motors 4 rotates, described upper cylindrical portion 11 drives external thread piece 2 to move up and down, thus drives described columned Workpiece carrier part 8 and blank 85 to move up and down relative to pedestal 3; Meanwhile, drive motors 4 can also drive described columned Workpiece carrier part 8 and blank 85 to rotate relative to pedestal 3 by described gear 51,52,61,62,71,72,82; And then, under the shear action of cutter, spiral alveolar can be processed on blank 85; When described columned Workpiece carrier part 8 and blank 85 rise to extreme higher position, the top of described first axle 5 with between the cylindric extension in a described left side 21, the top of described second axle 6 with between described middle circle column extension 81, the top of described 3rd axle 7 with all still keep between described blind hole coordinating rotationally, described the fourth-largest gear 82 still keeps engaging with cylindric described third pinion 72.

Claims (1)

1. one kind has the helical gear organisation of working of oval tubular bearing, for using when processing blank (85), it comprises: oval tubular bearing, pedestal (3), rotatable inner thread piece (1), external thread piece (2) and columned Workpiece carrier part (8), wherein, rotatable inner thread piece (1) comprises cylindrical portion (11) and lower chambers portion (12), described lower chambers portion (12) by bearing arrangement (13) and pedestal (3) circumference can rotate and axial restraint be connected, external thread piece (2) is cylindric, its outer circumference surface is provided with external screw thread to engage with the internal thread in described upper cylindrical portion (11), cavity (31) is provided with in pedestal (3), cavity (31) has top wall (32), drive motors (4) is installed in described cavity (31), drive motors (4) is connected with the lower end of the first axle (5), described first axle (5) is through the left-hand portion of described top wall (32), and described first axle (5) be positioned at top wall (32) top section on first gear (51) and the first pinion (52) are installed from bottom to up successively regularly, the inside circumference face of described lower chambers portion (12) is fixedly installed ring gear (139), first gear (51) engages with described ring gear (139), described rotatable inner thread piece (1) can be driven when drive motors (4) is rotated to rotate relative to pedestal (3), the bottom end face left-hand portion place of described external thread piece (2) is provided with the cylindric extension in the left side (21) to downward-extension regularly, the top of the first axle (5) is inserted in described cylindric extension (21), and can coordinate rotationally with described cylindric extension (21),
Described columned Workpiece carrier part (8) all overlaps with the axial line of external thread piece (2) and described upper cylindrical portion (11), its upper end is provided with blank clamping structure, middle part, lower end is provided with the middle circle column extension (81) to downward-extension regularly, the bottom of described columned Workpiece carrier part (8) is connected with external thread piece (2) by lower bearing (83), top is connected with ring-type capping (84) by upper bearing (metal) (86), described ring-type capping (84) is fixed with external thread piece (2), thus, described columned Workpiece carrier part (8) can be rotated relative to described external thread piece (2), second axle (6) is installed the middle part axial restraint of described top wall (32), the lower end of described second axle (6) is connected with described top wall (32), top is inserted in described middle circle column extension (81), and the axial line of described second axle (6) overlaps with the axial line of described columned Workpiece carrier part (8), and described second axle (6) all can coordinate rotationally with described top wall (32) and described middle circle column extension (81), described second axle (6) is installed with from bottom to up successively second largest gear (61) and the second pinion (62), second largest gear (61) engages with the first pinion (52),
Described top wall (32) is provided with the 3rd axle (7) on the right side of described second axle (6) with going back axial restraint, the lower end of described 3rd axle (7) is connected with described top wall (32), top is inserted into the blind hole of the right side wall being arranged in described external thread piece (2), and described 3rd axle (7) all can be coordinated rotationally with described top wall (32) and described blind hole; Described 3rd axle (7) is installed with the third-largest gear (71) and third pinion (72) from bottom to up successively, and the third-largest gear (71) engages with the second pinion (62); Third pinion (72) is cylindric; The outer circumference surface of described middle circle column extension (81) is installed with the fourth-largest gear (82), and the fourth-largest gear (82) engages with described third pinion (72);
Can be coordinated rotationally by the first long cylinder bearing (63) between described second axle (6) with described middle circle column extension (81); 3rd axle (7) can be coordinated by the second long cylinder bearing (73) rotationally with between described blind hole; The top of the first axle (5) can be coordinated by the 3rd long cylinder bearing (53) rotationally with between described cylindric extension (21); Described first, second, and third long cylinder bearing (63,73,53) includes outer cylinder (91) and inner cylinder (92), between outer cylinder (91) and inner cylinder (92), there is cylindrical gap, lower ball assembly (93) is installed in the lower end of described cylindrical gap, upper end is provided with ball assembly (94), middle part between top and bottom is provided with middle ball assembly (95), thus, can rotate relative to each other between described outer cylinder (91) and inner cylinder (92);
Thus, it is non-rotatable under described external thread piece (2) is located while described first axle (5) and described 3rd axle (7), when described drive motors (4) rotates, described upper cylindrical portion (11) drives external thread piece (2) to move up and down, thus drives described columned Workpiece carrier part (8) and blank (85) to move up and down relative to pedestal (3); Meanwhile, drive motors (4) can also pass through described gear (51,52,61,62,71,72,82) and drives described columned Workpiece carrier part (8) and blank (85) to rotate relative to pedestal (3); And then, under the shear action of cutter, spiral alveolar can be processed on blank (85); When described columned Workpiece carrier part (8) and blank (85) rise to extreme higher position, the top of described first axle (5) with between the cylindric extension in a described left side (21), the top of described second axle (6) with between described middle circle column extension (81), the top of described 3rd axle (7) with all still keep between described blind hole coordinating rotationally, described the fourth-largest gear (82) still keeps engaging with cylindric described third pinion (72).
CN201410559853.9A 2014-10-21 2014-10-21 A kind of helical gear organisation of working with oval tubular bearing Expired - Fee Related CN104400135B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10138046A (en) * 1996-11-01 1998-05-26 Honda Motor Co Ltd Work support mechanism for gear finishing work device
DE19901338C1 (en) * 1999-01-15 2000-03-02 Reishauer Ag Procedure for profiling grinding worm for continuous roller grinding process has grinding worm profiled corresponding to requirements of workpiece, working profile measured exactly, then measured values converted into control data
CN201493565U (en) * 2009-07-01 2010-06-02 中山市业隆机电有限公司 Small-size precision worm dedicated machine tool
CN102145405A (en) * 2011-02-16 2011-08-10 南京航空航天大学 Differential screw hole-making device and method
CN102658495A (en) * 2012-06-07 2012-09-12 天津第一机床总厂 Cutter spindle box of numerically-controlled spiral bevel gear milling machine
CN202824877U (en) * 2012-09-18 2013-03-27 华创机器人制造有限公司 Grinding mould for pinion of dual gear

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10138046A (en) * 1996-11-01 1998-05-26 Honda Motor Co Ltd Work support mechanism for gear finishing work device
DE19901338C1 (en) * 1999-01-15 2000-03-02 Reishauer Ag Procedure for profiling grinding worm for continuous roller grinding process has grinding worm profiled corresponding to requirements of workpiece, working profile measured exactly, then measured values converted into control data
CN201493565U (en) * 2009-07-01 2010-06-02 中山市业隆机电有限公司 Small-size precision worm dedicated machine tool
CN102145405A (en) * 2011-02-16 2011-08-10 南京航空航天大学 Differential screw hole-making device and method
CN102658495A (en) * 2012-06-07 2012-09-12 天津第一机床总厂 Cutter spindle box of numerically-controlled spiral bevel gear milling machine
CN202824877U (en) * 2012-09-18 2013-03-27 华创机器人制造有限公司 Grinding mould for pinion of dual gear

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Effective date of registration: 20160715

Address after: 411104 Fuxing East Road, Hunan, Xiangtan, No. 88

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Address before: 312399 Zhejiang city of Shaoxing province Shangyu City South Village tide Baiguan Street No. five 4-33

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