CN208221513U - A kind of ball wire rod set for preventing ball from falling off - Google Patents
A kind of ball wire rod set for preventing ball from falling off Download PDFInfo
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- CN208221513U CN208221513U CN201820658810.XU CN201820658810U CN208221513U CN 208221513 U CN208221513 U CN 208221513U CN 201820658810 U CN201820658810 U CN 201820658810U CN 208221513 U CN208221513 U CN 208221513U
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Abstract
The utility model relates to Linear transmission technical fields, more particularly to a kind of ball wire rod set for preventing ball from falling off, the drive bush of screw axis is set to including screw axis and transmission, screw axis outer diameter offers thread groove, drive bush internal diameter offers the driving groove being mutually matched with thread groove, it is rolled between driving groove and thread groove and is provided with ball, screw thread inner core identical with screw thread slot texture is arranged in driving groove, screw thread inner core is respectively arranged at driving groove two sides equipped with two groups and ball is arranged in driving groove, and screw thread groove depth is a quarter of ball diameter；Drive bush internal diameter both ends are equipped with deck, and deck is fixed at screw thread inner core both ends；The utility model is installed with the screw thread inner core fixed to ball in drive bush internal diameter, the ball in transmission process is fixed by screw thread inner core, prevents ball from falling off, can guarantee that ball is not fallen off drive bush is detached from screw axis, good fixing effect improves transmission effect and transmission accuracy.
Description
Technical field
The utility model relates to Linear transmission technical fields, more particularly to a kind of ball screw for preventing ball from falling off
Set.
Background technique
Mechanical (English name: machinery) refers to the general name of machine and mechanism.Machinery is exactly that people can be helped to reduce work
Difficulty or labour-saving tool device, as the article of chopsticks, broom and tweezers one kind can be said to machinery, they are simple
It is mechanical.And complicated machinery is exactly to be made of the simple and mechanical of two or more.Usually these more complicated machinery
Make machine.From the viewpoint of structure and movement, mechanism and machine and indistinction are loosely referred to as machinery.
Ball screw is actuated element most-often used on machine tool and precision machinery, and major function is will to rotate fortune
Turn changes linear movement into, or torque is converted into axial repeated action power, while having both high-precision, invertibity and efficient
Feature.Due to the frictional resistance with very little, ball screw is widely used in various industrial equipments and precision instrument.Ball wire
Bar is made of screw axis, bushing, ball etc..Its function is that rotary motion is converted to linear motion, this is Ai Kemu screw rod
It is further extension and development, this development significance bearing is exactly become into scroll actions from sliding action.
The ball screw used in existing automation equipment still remains some shortcomings, in ball leading screw driving process
In, ball can fall off after ball screw exceeds thread groove, directly result in ball screw and be not available, and can not be voluntarily
It repairs, needs depot repair, rather trouble is complicated.
Utility model content
To solve the above problems, the utility model provides a kind of screw thread for being installed in drive bush internal diameter and fixing to ball
Ball in transmission process is fixed by screw thread inner core, prevents ball from falling off by inner core, is detached from screw axis even if drive bush
It can guarantee that ball is not fallen off, good fixing effect improves the ball wire rod set for preventing ball from falling off of transmission effect and transmission accuracy.
The technical scheme adopted by the utility model is a kind of ball wire rod set for preventing ball from falling off, including screw axis
The drive bush of screw axis is set to transmission, the screw axis outer diameter offers thread groove, and the drive bush internal diameter opens up
There is the driving groove being mutually matched with thread groove, rolled between the driving groove and thread groove and be provided with ball, in the driving groove
It is arranged with screw thread inner core identical with screw thread slot texture, the screw thread inner core is equipped with two groups and is respectively arranged at driving groove two sides for rolling
Pearl is arranged in driving groove, and the screw thread groove depth is a quarter of ball diameter；Drive bush internal diameter both ends are all provided with
There is deck, deck is fixed at screw thread inner core both ends.
Further improvement of these options is that the screw axis is located at thread groove two sides and offers avoiding hollow groove, described to keep away
Empty slot lines moves towards identical with screw thread slot texture.
Further improvement of these options is that the empty avoiding slot cross-section is circular shape setting, and circular arc outer diameter is greater than
The line footpath of screw thread inner core.
Further improvement of these options is that oil storage tank, the oil storage tank and thread groove are offered in the thread groove
Link position is provided with arc chord angle.
Further improvement of these options is that the drive bush offers the circulation for ball-recirculation to be driven
Slot, the circulating slot are connected to the head and the tail both ends of driving groove.
Further improvement of these options is that the transmission groove depth is more than half of ball diameter.
Further improvement of these options is that the screw thread inner core line footpath is a quarter of ball diameter, is corresponded to
It is bonded ball and is equipped with cambered surface identical with ball outer diameter.
Further improvement of these options is the screw axis external diameter surface, the groove face of thread groove, drive bush internal diameter
Core outer surface is equipped with nitrogen aluminium titanium coating in face, the groove face of driving groove, ball external diameter surface and screw thread.
Further improvement of these options is that the deck is EVA or PE injection molded, sets fixation by circlip card
In bushing both ends.
The utility model has the following beneficial effects:
In a first aspect, being equipped with screw axis and being driven the drive bush for being set to screw axis, the screw axis outer diameter is offered
Thread groove, in Linear transmission work, threadingly slot Linear transmission is in screw axis for drive bush, and transmission effect is good, transmission accuracy
It is high；Second aspect, the drive bush internal diameter offer the driving groove being mutually matched with thread groove, the driving groove and thread groove
Between roll and be provided with ball, by the effects of ball, driving groove and thread groove are formed and roll cooperation, to realize straight-line transmitting
Dynamic, so that effect threadingly slot transmission of the drive bush by ball, transmission effect is good, and precision is high；The third aspect, the transmission
Screw thread inner core identical with screw thread slot texture is arranged in slot, the screw thread inner core is equipped with two groups and is respectively arranged at driving groove two sides
Ball is arranged in driving groove, ball is fixed in driving groove by screw thread inner core, it will not be because of biography in transmission process
Dynamic bushing is detached from screw axis and falls off with ball when thread groove, to ball good fixing effect, improves transmission effect and transmission accuracy；The
Four aspects, the screw thread groove depth are a quarter of ball diameter, and screw thread groove depth, which can guarantee, rolls transmission effect with ball,
Thread groove is shallower to be convenient for positioning of the screw thread inner core to ball, prevents ball from falling off, so that drive bush is driven more stable, precision
It is higher；5th aspect, drive bush internal diameter both ends are equipped with deck, and screw thread inner core both ends are fixed on deck, are passed through
Screw thread inner core can be fixed on drive bush internal diameter by deck, and the fixation convenient for screw thread inner core to ball prevents it from falling off, further
Raising transmission effect and transmission accuracy.
In the utility model, the screw thread inner core fixed to ball is installed in drive bush internal diameter, it will by screw thread inner core
Ball in transmission process is fixed, and prevents ball from falling off, and can guarantee that ball is not fallen off drive bush is detached from screw axis, Gu
It is good to determine effect, improves transmission effect and transmission accuracy.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model；
Fig. 2 is the assembling schematic diagram of the utility model screw axis and drive bush.
Description of drawing identification: ball wire rod set 100, screw axis 110, thread groove 111, oil storage tank 111a, avoiding hollow groove 112,
Drive bush 120, driving groove 121, deck 122, circlip 122a circulating slot 123, ball 130, screw thread inner core 140.
Specific embodiment
The utility model is further described below in conjunction with attached drawing.
As shown in FIG. 1 to FIG. 2, the respectively assembly of the perspective view schematic diagram and screw axis and drive bush of the utility model
Schematic diagram.
A kind of ball wire rod set 100 for preventing ball from falling off is set to screw axis 110 including screw axis 110 and transmission
Drive bush 120,110 outer diameter of screw axis offer thread groove 111, and 120 internal diameter of drive bush offers and screw thread
The driving groove 121 that slot 111 is mutually matched rolls between the driving groove 121 and thread groove 111 and is provided with ball 130, the biography
Screw thread inner core 140 identical with 111 lines of thread groove is arranged in dynamic slot 121, the screw thread inner core 140 is equipped with two groups and sets respectively
It is placed in 121 two sides of driving groove ball 130 is arranged in driving groove 121,111 depth of thread groove is 130 diameter of ball
A quarter；The 120 internal diameter both ends of drive bush are equipped with deck 122, and deck is fixed at 140 both ends of screw thread inner core
122。
Screw axis 110 is located at 111 two sides of thread groove and offers avoiding hollow groove 112,112 lines of avoiding hollow groove and thread groove
111 lines move towards identical, are further improved to, and 112 section of avoiding hollow groove is circular shape setting, and circular arc outer diameter is greater than screw thread
The drive position of screw thread inner core 140 is played the role of empty avoiding by the effect of avoiding hollow groove 112, guarantees transmission by the line footpath of inner core 140
Bushing 120 can stable drive, transmission effect it is good, high transmission accuracy.
Oil storage tank 111a is offered in thread groove 111, the oil storage tank 111a and 111 link position of thread groove are provided with circle
Arc angle can store the lubricating transmission effect placed lubricating oil and improve ball 130 by the effect of oil storage tank 111a, and in addition oil storage can
The contact area between ball 130 and oil storage tank 111a is reduced, coefficient of friction is reduced, rub proofness is improved, improves service life.
Drive bush 120 is offered for by the circulating slot 123 of the circulation transmission of ball 130, the circulating slot 123 to be connected to
Ball 130 is recycled by circulating slot 123 and is driven, can slow down ball 130 and driving groove significantly by the head and the tail both ends of driving groove 121
Coefficient of friction between 121 and thread groove 111 improves rub proofness and service life.
121 depth of driving groove is more than half of 130 diameter of ball, is further improved to, 140 line of screw thread inner core
Diameter is a quarter of 130 diameter of ball, corresponds to fitting ball 130 and is equipped with cambered surface identical with 130 outer diameter of ball, passes through biography
130 fixed conveyor of ball is prevented ball 130 from falling off by the cooperation of dynamic slot 121 and screw thread inner core 140, guarantees drive bush 120
Can stable drive, transmission effect it is good, high transmission accuracy.
110 external diameter surface of screw axis, the groove face of thread groove 111,120 aperture surface of drive bush, driving groove 121 groove face,
130 external diameter surface of ball and 140 outer surface of screw thread inner core are equipped with nitrogen aluminium titanium coating, and nitrogen aluminium titanium coating itself is used as a kind of novel
Cutting tool coating material not only with the hardness and wearability of TiN, and plays during recycling gearing friction anti-oxidant and anti-
The effect of diffusive wear.
Deck 122 is EVA or PE injection molded, sets by circlip 122a card and is fixed on bushing both ends, using being molded into
The deck 122 of type, manufacturing cost is low, is fixed by circlip 122a, is conveniently installed and used, and good fixing effect, transmission stability is good,
High transmission accuracy.
In a first aspect, being equipped with screw axis 110 and being driven the drive bush 120 for being set to screw axis 110, the screw axis
110 outer diameters offer thread groove 111, Linear transmission work in, drive bush 120 threadingly 111 Linear transmission of slot in screw rod
Axis 110, transmission effect is good, high transmission accuracy；Second aspect, 120 internal diameter of drive bush offer mutual with thread groove 111
Matched driving groove 121 rolls between the driving groove 121 and thread groove 111 and is provided with ball 130, passes through the work of ball 130
With by driving groove 121 and the formation rolling cooperation of thread groove 111, so that Linear transmission is realized, so that drive bush 120 passes through rolling
Threadingly slot 111 is driven for the effect of pearl 130, and transmission effect is good, and precision is high；The third aspect, be arranged in the driving groove 121 with
The identical screw thread inner core 140 of 111 lines of thread groove, the screw thread inner core 140 are equipped with two groups and are respectively arranged at 121 two sides of driving groove
Ball 130 is arranged in driving groove 121, ball 130 is fixed in driving groove 121 by screw thread inner core 140, had been driven
Screw axis 110 will not be detached from because of drive bush 120 in journey to fall off with ball 130 when thread groove 111, it is fixed to ball 130 to imitate
Fruit is good, improves transmission effect and transmission accuracy；Fourth aspect, 111 depth of thread groove be 130 diameter of ball four/
One, 111 depth of thread groove, which can guarantee, rolls transmission effect with ball 130, and thread groove 111 is shallower right convenient for screw thread inner core 140
The positioning of ball 130 prevents ball 130 from falling off, so that drive bush 120 is driven more stable, precision is higher；5th aspect, institute
It states 120 internal diameter both ends of drive bush and is equipped with deck 122,140 both ends of screw thread inner core are fixed on deck 122, pass through deck
122 can be fixed on screw thread inner core 140 120 internal diameter of drive bush, and the fixation convenient for screw thread inner core 140 to ball 130 prevents it
It falls off, it is further to improve transmission effect and transmission accuracy.
In the utility model, it is installed with the screw thread inner core 140 fixed to ball 130 in 120 internal diameter of drive bush, passes through spiral shell
Line inner core 140 is fixed by the ball 130 in transmission process, prevents ball 130 from falling off, even if drive bush 120 is detached from screw axis
110 also can guarantee that ball 130 is not fallen off, good fixing effect, improve transmission effect and transmission accuracy.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of ball wire rod set for preventing ball from falling off, it is characterised in that: be set to screw axis including screw axis and transmission
Drive bush, the screw axis outer diameter offer thread groove, and the drive bush internal diameter is offered to be mutually matched with thread groove
Driving groove rolls between the driving groove and thread groove and is provided with ball, is arranged in the driving groove and screw thread slot texture phase
Same screw thread inner core, the screw thread inner core are respectively arranged at driving groove two sides equipped with two groups and ball are arranged in driving groove, institute
State a quarter that screw thread groove depth is ball diameter；Drive bush internal diameter both ends are equipped with deck, the screw thread inner core
Deck is fixed at both ends.
2. a kind of ball wire rod set for preventing ball from falling off according to claim 1, it is characterised in that: the screw rod axle position
Avoiding hollow groove is offered in thread groove two sides, the empty avoiding slot texture moves towards identical with screw thread slot texture.
3. a kind of ball wire rod set for preventing ball from falling off according to claim 2, it is characterised in that: the avoiding hollow groove is cut
Face is circular shape setting, and circular arc outer diameter is greater than the line footpath of screw thread inner core.
4. a kind of ball wire rod set for preventing ball from falling off according to claim 3, it is characterised in that: in the thread groove
Oil storage tank is offered, the oil storage tank and thread groove link position are provided with arc chord angle.
5. a kind of ball wire rod set for preventing ball from falling off according to claim 4, it is characterised in that: the drive bush
The circulating slot for ball-recirculation to be driven is offered, the circulating slot is connected to the head and the tail both ends of driving groove.
6. a kind of ball wire rod set for preventing ball from falling off according to claim 5, it is characterised in that: the transmission groove depth
Degree is more than half of ball diameter.
7. a kind of ball wire rod set for preventing ball from falling off according to claim 6, it is characterised in that: the screw thread inner core
Line footpath is a quarter of ball diameter, corresponds to fitting ball and is equipped with cambered surface identical with ball outer diameter.
8. a kind of ball wire rod set for preventing ball from falling off according to claim 7, it is characterised in that: outside the screw axis
Core outer surface in diameter surface, the groove face of thread groove, drive bush aperture surface, the groove face of driving groove, ball external diameter surface and screw thread
It is equipped with nitrogen aluminium titanium coating.
9. a kind of ball wire rod set for preventing ball from falling off according to claim 8, it is characterised in that: the deck is
EVA or PE injection molded is set by circlip card and is fixed on bushing both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820658810.XU CN208221513U (en) | 2018-05-04 | 2018-05-04 | A kind of ball wire rod set for preventing ball from falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820658810.XU CN208221513U (en) | 2018-05-04 | 2018-05-04 | A kind of ball wire rod set for preventing ball from falling off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208221513U true CN208221513U (en) | 2018-12-11 |
Family
ID=64510349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820658810.XU Active CN208221513U (en) | 2018-05-04 | 2018-05-04 | A kind of ball wire rod set for preventing ball from falling off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208221513U (en) |
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2018
- 2018-05-04 CN CN201820658810.XU patent/CN208221513U/en active Active
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