CN207353985U - A kind of transmission shaft structure of permanent-magnet servo motor - Google Patents
A kind of transmission shaft structure of permanent-magnet servo motor Download PDFInfo
- Publication number
- CN207353985U CN207353985U CN201721129359.4U CN201721129359U CN207353985U CN 207353985 U CN207353985 U CN 207353985U CN 201721129359 U CN201721129359 U CN 201721129359U CN 207353985 U CN207353985 U CN 207353985U
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- CN
- China
- Prior art keywords
- spline housing
- transmission shaft
- spline
- accommodating chamber
- permanent
- 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- Withdrawn - After Issue
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 62
- 239000000314 lubricant Substances 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000000837 restrainer Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of transmission shaft structure of permanent-magnet servo motor, it includes being driven shaft body, spline housing and position-limit mechanism, portion offers accommodating chamber axially inward for one end of transmission shaft body, spline housing and position-limit mechanism are placed in accommodating chamber, spline housing is detachably connected with transmission shaft body, involute spline, position-limit mechanism limitation spline housing axial displacement in accommodating chamber are provided with the inner hole wall of spline housing；Advantage is the spline housing and the transmission removable connection of shaft body, involute spline is set on the inner hole wall of the spline housing, coordinate with the external splines of the transmission shaft of working machine, and avoid the spline housing that axial displacement occurs in accommodating chamber by position-limit mechanism, since the spline housing is removable, so if the involute spline set on the inner hole wall of the spline housing is destroyed because of fatigue wear, the spline housing can then be pulled down, it is individually replaced the spline housing, without replacing whole transmission shaft, maintenance cost is reduced, and shortens maintenance cycle.
Description
Technical field
A kind of permanent-magnet servo motor is the utility model is related to, more particularly, to a kind of transmission shaft knot of permanent-magnet servo motor
Structure.
Background technology
As permanent-magnet servo motor is more and more widely used in the emphasis device fabrication industry such as injection molding machine, market is to permanent magnetism
The reliability, maintainability, safety and human factors of servomotor, low noise, precision drive propose increasingly higher demands, to the biography of permanent-magnet servo motor
The innovation of moving axis structure is even more the target and important means of Electrical Enterprises development profit.Common transmission shaft structure as shown in figure 3,
It includes shaft body 91, and shaft body 91 is inwardly directly machined with internal spline 92 from one end vertically, and internal spline 92 is spent for involute
Key.There are following defect for this traditional transmission shaft structure：1) once the internal spline directly processed in shaft body is because of fatigue wear
And destroyed or dangerouse cross-section (point) is destroyed, then need replacing whole transmission shaft, cause the maintenance of permanent-magnet servo motor
It is of high cost, and maintenance cycle is grown；2) internal spline directly processed in the shaft body of its transmission shaft when requiring prime mover to work should be with
External splines rigidity centering connection on the transmission shaft of working machine, however this rigid centering connection to the bearing of prime mover shafting with
And the bearing of working machine shafting has certain injury, the service life of bearing is reduced, and adds noise.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of transmission shaft structure of permanent-magnet servo motor, flower in it
Without whole transmission shaft is needed to change when key is destroyed because of fatigue wear, maintenance cost is low, and maintenance cycle is short.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of transmission shaft of permanent-magnet servo motor
Structure, it is characterised in that including transmission shaft body, spline housing and position-limit mechanism, one end of the transmission shaft body vertically to
Inside offers accommodating chamber, and the spline housing and the position-limit mechanism are placed in the accommodating chamber, the spline housing
Detachably it is connected with the transmission shaft body, involute spline is provided with the inner hole wall of the spline housing, it is described
Position-limit mechanism limitation spline housing axial displacement in the accommodating chamber.
Connected between the spline housing and the transmission shaft body by spline or connected by flat key or pass through edge
Block connects or is connected by axis pin or pass through gemel connection.Spline housing and transmission shaft body between can by various ways into
Row connection, can be also attached by a variety of different combinations.
Rectangle external splines is provided with the periphery wall of the spline housing, the accommodating chamber is corresponding with the spline housing
Part cavity wall on be provided with rectangle internal spline, the spline housing passes through the rectangle external splines and flower in the rectangle
Key coordinates the rectangular spline formed is secondary to be connected with the transmission shaft body.Here, spline housing is secondary with being driven by rectangular spline
Shaft body connects, easy to connect.
The position-limit mechanism is made of spring base, spring and circlip, one end of the spring base vertically to
Inside offers spring cavity, and the spring is arranged in the spring cavity, close to institute on the periphery wall of the spring base
Circumferentially arranged at the position of the other end for the spring base stated to have annular block machine, the bottom of chamber of the accommodating chamber is axially disposed to be had
Axially position groove, one end of the spring base are embedded in the axially position groove, the other end of the spring base
In the endoporus of the embedded spline housing, the annular block machine is abutted with the medial extremity of the spline housing, the receiving
Circumferentially arranged in the cavity wall of chamber to have annular groove, the circlip is embedded in the annular groove, the flower
Key set is limited between the circlip and the annular block machine.Spline housing is set not send out using spring base and circlip
Raw axial displacement, the spring being arranged in spring cavity can play the effect of buffering absorbing, noise have been greatly reduced；In addition,
The structure of the position-limit mechanism is simple, easy to use.
Circumferentially be uniformly provided with the spring base it is multiple connected with the spring cavity be used for lubricant medium stream
Logical medium guide hole, portion offers the axial direction connected with the spring cavity and leads to axially inward for the other end of the spring base
Hole.Lubricant medium when transmission shaft rotates in transmission shaft flows to rectangular spline pair, and lubricant medium leads to when transmission shaft stops
Involute spline is flowed to after crossing medium guide hole and axially extending bore, not only realizes enclosed lubrication, high lubricating effect, and can realize
The automatic flexible centering of involute spline, i.e., do not require the outer flower of the internal spline of the transmission shaft of prime mover and the transmission shaft of working machine
The centering of key rigidity connects, therefore effectively protects the bearing of prime mover shafting and the bearing of working machine shafting, extends bearing
Service life.
Internal thread is provided with the hole wall of the axially extending bore.If the involute spline set on the inner hole wall of spline housing
It is destroyed, then first takes out circlip because of fatigue wear, then by with externally threaded instrument, makes the instrument through flower
, can be by spring base by the instrument with the screw-internal thread fit set on the hole wall of the axially extending bore of spring base after the endoporus of key set
Taken out together with spline housing, you can conveniently realize the fast quick-detach of spline housing with replacing.
Portion offers at least one threaded hole to the outboard end of the spline housing axially inward.If the inner hole wall of spline housing
The involute spline of upper setting is destroyed because of fatigue wear, then is first taken out circlip, then by with externally threaded
Instrument, makes the instrument coordinate with the threaded hole on spline housing, can be taken out spline housing by the instrument, you can conveniently realize
The fast quick-detach of spline housing is with replacing.
Compared with prior art, the utility model has the advantage of：
A spline housing, the spline housing and the transmission removable connection of shaft body are added, is set on the inner hole wall of the spline housing
Involute spline is put, is coordinated with the external splines of the transmission shaft of working machine, and the spline housing is avoided in accommodating chamber by position-limit mechanism
Interior generation axial displacement, the transmission shaft have the function of that traditional transmission shaft has in itself, and since the spline housing is removable, because
If the involute spline set on the inner hole wall of this spline housing is destroyed because of fatigue wear, which can be torn open
Under, the spline housing is individually replaced, without replacing whole transmission shaft, reduces maintenance cost, and shorten maintenance cycle.
Brief description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the transmission shaft structure of the utility model；
Fig. 2 is the partial sectional view of the transmission shaft structure of the utility model；
Fig. 3 is the partial sectional view of existing transmission shaft structure.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
The utility model proposes a kind of permanent-magnet servo motor transmission shaft structure, as depicted in figs. 1 and 2, it include pass
Moving axis body 1, spline housing 2 and position-limit mechanism 3, portion offers accommodating chamber 11, spline axially inward for one end of transmission shaft body 1
Set 2 and position-limit mechanism 3 are placed in accommodating chamber 11, and spline housing 2 is detachably connected with transmission shaft body 1, the inner hole wall of spline housing 2
On be provided with involute spline 21, position-limit mechanism 3 limits the axial displacement in accommodating chamber 11 of spline housing 2.Add a spline housing
2, which sets involute spline 21, with work with being driven 1 removable connection of shaft body on the inner hole wall of the spline housing 2
The external splines for making the transmission shaft of machine coordinates, and avoids the spline housing 2 that axial position occurs in accommodating chamber 11 by position-limit mechanism 3
Move, which has the function of that traditional transmission shaft has in itself, and since the spline housing 2 is removable, so if the flower
The involute spline 21 set on the inner hole wall of key set 2 is destroyed because of fatigue wear, then can be pulled down the spline housing 2, individually
The spline housing 2 is replaced, without replacing whole transmission shaft, reduces maintenance cost, and shorten maintenance cycle.
In the present embodiment, spline housing 2 and transmission shaft body 1 between can by spline connect or by flat key connection or
Connected by insert or connected by axis pin or by gemel connection, a variety of differences can be passed through between spline housing 2 and transmission shaft body 1
Mode be attached, can be also attached by a variety of different combinations, specifically optional spline connection mode, i.e.,：
Rectangle external splines 22 is provided with the periphery wall of spline housing 2, square is provided with the part cavity wall corresponding with spline housing 2 of accommodating chamber 11
Shape internal spline 12, spline housing 2 coordinate the rectangular spline formed pair and transmission shaft by rectangle external splines 22 and rectangle internal spline 12
Body 1 connects, and spline housing 2 is connected by the way that rectangular spline is secondary with transmission shaft body 1, easy to connect.
In the present embodiment, position-limit mechanism 3 is made of spring base 31, spring 32 and circlip 33, and the one of spring base 31
Portion offers spring cavity 34 axially inward at end, and spring 32 is arranged in spring cavity 34, and short round is leaned on the periphery wall of spring base 31
Circumferentially arranged at the position of the other end of spring abutment 31 to have annular block machine 35, the bottom of chamber of accommodating chamber 11 is axially disposed to have axial direction to determine
Position groove 13, one end of spring base 31 are embedded in axially position groove 13, the endoporus of the other end insertion spline housing 2 of spring base 31
Interior, annular block machine 35 is abutted with the medial extremity of spline housing 2, circumferentially arranged in the cavity wall of accommodating chamber 11 to have annular groove 14, bullet
Property baffle ring 33 be embedded in annular groove 14, spline housing 2 is limited between circlip 33 and annular block machine 35.Utilize spring base
31 make spline housing 2 that axial displacement not occur with circlip 33, and the spring 32 being arranged in spring cavity 34 can play buffering and inhale
The effect shaken, has been greatly reduced noise；In addition, the structure of the position-limit mechanism 3 is simple, easy to use.
In the present embodiment, four lubrications that are used for connected with spring cavity 34 are circumferentially uniformly provided with spring base 31 to be situated between
The medium guide hole 36 that mass flow is led to, portion offers the axially extending bore connected with spring cavity 34 to the other end of spring base 31 axially inward
37.Lubricant medium when transmission shaft rotates in transmission shaft flows to rectangular spline pair, and lubricant medium leads to when transmission shaft stops
Involute spline 21 is flowed to after crossing medium guide hole 36 and axially extending bore 37, enclosed is not only realized and lubricates, high lubricating effect, and
The automatic flexible centering of involute spline 21 can be achieved, i.e., do not require the transmission of the internal spline and working machine of the transmission shaft of prime mover
The external splines rigidity centering connection of axis, therefore the bearing of prime mover shafting and the bearing of working machine shafting effectively are protected, extend
The service life of bearing.
In the present embodiment, internal thread (not shown) is provided with the hole wall of axially extending bore 37.If spline housing 2 is interior
The involute spline 21 set on hole wall is destroyed because of fatigue wear, then is first taken out circlip 33, then by with
Externally threaded instrument, make the instrument through after the endoporus of spline housing 2 with setting on the hole wall of the axially extending bore 37 of spring base 31
Screw-internal thread fit, can be taken out spring base 31 and spline housing 2 together by the instrument, you can conveniently realize spline housing 2
Fast quick-detach is with replacing.
In the present embodiment, can also symmetrically portion opens up two threaded holes 23 axially inward in the outboard end of spline housing 2.If
The involute spline 21 set on the inner hole wall of spline housing 2 is destroyed because of fatigue wear, then is first taken out circlip 33, so
Afterwards by with externally threaded instrument, the instrument is set to coordinate with the threaded hole 23 on spline housing 2, can be by spline by the instrument
Set 2 takes out, you can conveniently realizes the fast quick-detach of spline housing 2 with replacing.
Claims (7)
- A kind of 1. transmission shaft structure of permanent-magnet servo motor, it is characterised in that including being driven shaft body, spline housing and position-limit mechanism, Portion offers accommodating chamber axially inward for one end of the transmission shaft body, and the spline housing and the position restrainer are set up In in the accommodating chamber, the spline housing is detachably connected with the transmission shaft body, the spline housing it is interior Involute spline, the position-limit mechanism limitation spline housing axial position in the accommodating chamber are provided with hole wall Move.
- A kind of 2. transmission shaft structure of permanent-magnet servo motor according to claim 1, it is characterised in that the spline housing It is connected between the transmission shaft body by spline or is connected by flat key or connected by insert or connected by axis pin Or pass through gemel connection.
- A kind of 3. transmission shaft structure of permanent-magnet servo motor according to claim 2, it is characterised in that the spline housing Periphery wall on be provided with rectangle external splines, be provided with square in accommodating chamber part cavity wall corresponding with the spline housing Shape internal spline, the spline housing coordinate the rectangular spline formed by the rectangle external splines and the rectangle internal spline It is secondary to be connected with the transmission shaft body.
- A kind of 4. transmission shaft structure of permanent-magnet servo motor according to any one of claim 1 to 3, it is characterised in that institute The position-limit mechanism stated is made of spring base, spring and circlip, and portion offers axially inward for one end of the spring base Spring cavity, the spring are arranged in the spring cavity, close to the spring base on the periphery wall of the spring base The other end position at it is circumferentially arranged have an annular block machine, the bottom of chamber of the accommodating chamber is axially disposed to have the axially position recessed Groove, one end of the spring base are embedded in the axially position groove, described in the other end insertion of the spring base In the endoporus of spline housing, the annular block machine is abutted with the medial extremity of the spline housing, in the cavity wall of the accommodating chamber Circumferentially arranged to have annular groove, the circlip is embedded in the annular groove, and the spline housing is limited to Between the circlip and the annular block machine.
- A kind of 5. transmission shaft structure of permanent-magnet servo motor according to claim 4, it is characterised in that the spring base On be circumferentially uniformly provided with it is multiple connected with the spring cavity be used for lubricant medium circulation medium guide holes, the bullet Portion offers the axially extending bore connected with the spring cavity to the other end of spring abutment axially inward.
- 6. the transmission shaft structure of a kind of permanent-magnet servo motor according to claim 5, it is characterised in that the axial direction is led to Internal thread is provided with the hole wall in hole.
- A kind of 7. transmission shaft structure of permanent-magnet servo motor according to claim 6, it is characterised in that the spline housing Outboard end portion offers at least one threaded hole axially inward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721129359.4U CN207353985U (en) | 2017-09-05 | 2017-09-05 | A kind of transmission shaft structure of permanent-magnet servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721129359.4U CN207353985U (en) | 2017-09-05 | 2017-09-05 | A kind of transmission shaft structure of permanent-magnet servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207353985U true CN207353985U (en) | 2018-05-11 |
Family
ID=62412449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721129359.4U Withdrawn - After Issue CN207353985U (en) | 2017-09-05 | 2017-09-05 | A kind of transmission shaft structure of permanent-magnet servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207353985U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707072A (en) * | 2017-09-05 | 2018-02-16 | 宁波安信数控技术有限公司 | A kind of transmission shaft structure of permanent-magnet servo motor |
| CN114771636A (en) * | 2022-06-23 | 2022-07-22 | 鲜一汽配（南通）有限公司 | Automobile steering gear input shaft with high durability |
-
2017
- 2017-09-05 CN CN201721129359.4U patent/CN207353985U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707072A (en) * | 2017-09-05 | 2018-02-16 | 宁波安信数控技术有限公司 | A kind of transmission shaft structure of permanent-magnet servo motor |
| CN107707072B (en) * | 2017-09-05 | 2023-11-10 | 宁波安信数控技术有限公司 | Transmission shaft structure of permanent magnet servo motor |
| CN114771636A (en) * | 2022-06-23 | 2022-07-22 | 鲜一汽配（南通）有限公司 | Automobile steering gear input shaft with high durability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180511 Effective date of abandoning: 20231110 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180511 Effective date of abandoning: 20231110 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |