CN208966964U - A kind of screw bearing transmission system - Google Patents
A kind of screw bearing transmission system Download PDFInfo
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- CN208966964U CN208966964U CN201821682230.0U CN201821682230U CN208966964U CN 208966964 U CN208966964 U CN 208966964U CN 201821682230 U CN201821682230 U CN 201821682230U CN 208966964 U CN208966964 U CN 208966964U
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- screw
- bearing
- open tube
- assembly
- transmission system
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Abstract
The utility model discloses a kind of screw bearing transmission systems, including nut assembly, the screw arbor assembly matched with nut assembly and the driving motor for driving screw arbor assembly to move, nut assembly includes open tube, and several bearing assemblies for being set to the medial surface of open tube and helically arranging, screw arbor assembly is provided with the spiral slide matched with bearing assembly, bearing assembly includes the fixing axle being connected with open tube, one end of fixing axle is fixedly connected with open tube, the other end of fixing axle is provided with idler wheel, rolling element is provided between idler wheel and fixing axle.The screw bearing transmission system of the utility model is not only simple in structure reliably, and processing cost is low, while improving the bearing capacity of structure.
Description
Technical field
The utility model relates to screw drive technical field more particularly to a kind of screw bearing transmission systems.
Background technique
Ball-screw has many advantages, such as that transmission efficiency is high, positioning accuracy is good compared to other transmissions.Existing ball screw
Including screw rod, nut, ball, motor, mounting rack, screw rod two axial ends are fixed on mounting rack, nut and screw rod to be realized by ball
Cooperation is rolled, screw rod rotation is driven by a motor, drives nut to rotate by ball, and realize the linear motion of nut.
The disadvantages of existing ball screw has back pearl, and structure is complicated, and machining accuracy is high, and cost is high.Conventional ball silk
Thick stick is screw rod rotation, and nut linear movement, ball-recirculation duct is complicated with time pearl mouth-shaped, and difficulty of processing is big；When transmission distance
When longer, it is also easy to produce bending deformation, and screw rod can not carry out splicing lengthening；When for relatively large load transmission, it is limited by screw rod
With the processing dimension of nut, unbearable relatively large load.
Therefore, it is necessary to research and develop the screw bearing transmission system that a kind of structure is reliable, processing cost is low, bearing load is big.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of screw bearing transmission system,
It is not only simple in structure reliably, and processing cost is low, while improving the bearing capacity of structure.
The utility model adopts the following technical solution realizes:
A kind of screw bearing transmission system including nut assembly, the screw arbor assembly matched with nut assembly and is used for
The driving motor of screw arbor assembly movement is driven, nut assembly includes open tube and several are set to the medial surface of open tube
And the bearing assembly helically arranged, screw arbor assembly are provided with the spiral slide matched with bearing assembly, bearing assembly includes
One end of the fixing axle being connected with open tube, fixing axle is fixedly connected with open tube, and the other end of fixing axle is provided with idler wheel,
Rolling element is provided between idler wheel and fixing axle.
Further, open tube is the round tube for being provided with opening, and the medial surface of open tube is provided with several and bearing group
The threaded hole that part matches, several threaded holes are helically arranged in the medial surface of open tube.
Further, the outside of idler wheel is provided with encapsulated body, and the outer diameter of encapsulated body is smaller than the internal diameter of spiral slide by 0.5~
2mm。
Further, the side wall of spiral slide is provided with fluting, is provided with rubber pad in fluting.
Further, the section of spiral slide is trapezoidal, and the shape of idler wheel and the shape of spiral slide are adapted.
Further, the both ends of screw arbor assembly are provided with end cap, and first bearing is provided between screw arbor assembly and end cap,
It is provided with cover board between two end caps, the mounting disc for installing driving motor is provided on the outside of the end cap of one end.
Further, guidance set is provided between screw arbor assembly and open tube, guidance set includes being set to open tube
The sliding rail of two sides and the second bearing for being set to end cap two sides and being matched with sliding rail.End cap two sides are respectively provided with that there are two the
Two bearings.
Further, observation window is provided in the middle part of cover board.Preferably, the quantity of observation window is two.
Further, the outside of screw arbor assembly is provided with blimp.
Further, retarder is provided between driving motor and screw arbor assembly.
Compared with prior art, the utility model has the beneficial effects that:
By the driving motor being connected with screw arbor assembly, to drive screw arbor assembly opposing nut component to rotate, and realize
The linear motion of screw arbor assembly, in rotational movement process, the idler wheel on nut assembly is done in the spiral slide of screw arbor assembly to be revolved
Transhipment is dynamic, improves the bearing capacity of system；Several bearing assemblies open tube medial surface and helically arrange, with screw rod
The spiral slide of component matches, and reduces difficulty of processing and processing cost；It is fixed by the fixing axle being connected with open tube
One end of axis is fixedly connected with open tube, and the other end of fixing axle is provided with idler wheel, and rolling is provided between idler wheel and fixing axle
The technological means of body not only simplifies structure, and improve reliability of structure so that each bearing assembly is mutually indepedent.
Detailed description of the invention
Fig. 1 is the perspective view of the screw bearing transmission system of the utility model embodiment；
Fig. 2 is the stereogram exploded view of the screw bearing transmission system of the utility model embodiment；
Fig. 3 is the main view of the screw bearing transmission system of the utility model embodiment；
Fig. 4 is the cross-sectional view of AA section in Fig. 3；
Fig. 5 is the perspective view of the nut assembly of the utility model embodiment；
Fig. 6 is the stereogram exploded view of the nut assembly of the utility model embodiment；
Fig. 7 is the perspective view of the end cap of the utility model embodiment；
Fig. 8 is the main view of the end cap of the utility model embodiment；
Fig. 9 is the top view of the end cap of the utility model embodiment；
Figure 10 is the perspective view of the bearing assembly of the utility model embodiment.
In figure: 10, driving motor；20, open tube；21, threaded hole；30, screw arbor assembly；31, spiral slide；40, bearing
Component；41, fixing axle；42, idler wheel；50, end cap；51, first bearing；60, cover board；61, observation window；70, mounting disc；80, it leads
To component；81, sliding rail；82, second bearing；90, retarder.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
Screw bearing transmission system as Figure 1-10 shows, including nut assembly (not shown), match with nut assembly
Screw arbor assembly 30 and for drive screw arbor assembly 30 move driving motor 10, nut assembly include open tube 20 and
Several bearing assemblies 40 for being set to the medial surface of open tube 20 and helically arranging, screw arbor assembly 30 is provided with and bearing group
The spiral slide 31 that part 40 matches, bearing assembly 40 include the fixing axle 41 being connected with open tube 20, and the one of fixing axle 41
End is fixedly connected with open tube 20, and the other end of fixing axle 41 is provided with idler wheel 42, is provided between idler wheel 42 and fixing axle 41
Rolling element (not shown).
By the driving motor 10 being connected with screw arbor assembly 30, to drive 30 opposing nut component of screw arbor assembly to rotate,
And realize the linear motion of screw arbor assembly 30, and in rotational movement process, the spiral shell of idler wheel 42 on nut assembly in screw arbor assembly 30
It makes rotating motion in rotation slideway 31, improves the bearing capacity of system；Several bearing assemblies 40 open tube 20 medial surface and
It helically arranges, to match with the spiral slide 31 of screw arbor assembly 30, reduces difficulty of processing and processing cost；By with open
The fixing axle 41 that mouth pipe 20 is connected, one end of fixing axle 41 are fixedly connected with open tube 20, the other end setting of fixing axle 41
There is idler wheel 42, the technological means of rolling element is provided between idler wheel 42 and fixing axle 41, so that each bearing assembly 40 is mutually solely
It is vertical, structure is not only simplified, and improve reliability of structure.
As preferred embodiment, open tube 20 is the round tube for being provided with opening, and the medial surface of open tube 20 is provided with
Several threaded holes 21 matched with bearing assembly 40, several threaded holes 21 are helically arranged in the medial surface of open tube 20
Cloth.The quantity of threaded hole 21 is equal with the quantity of bearing assembly 40, and corresponds.The quantity of threaded hole 21 can be according to open tube
20 length and screw pitch select.Preferably, several threaded holes 21 are divided into three groups along the circumferential direction of open tube 20, three groups of threaded holes
21 form three vertex of equilateral triangle in the section of open tube 20, so that screw arbor assembly 30 is more uniformly stressed, improve
Structure reliability of operation.In other embodiments, open tube 20 may be the rectangular tube for being provided with opening.
As preferred embodiment, the outside of idler wheel 42 is provided with encapsulated body (not shown), and the outer diameter of encapsulated body compares spiral shell
Revolve the small 0.5~2mm of internal diameter of slideway 31.During idler wheel 42 and spiral slide 31 cooperate, it is easy to produce noise.Encapsulated body
Setting, can effectively reduce noise when idler wheel 42 moves in spiral slide 31, at the same can to avoid the abrasion of idler wheel 42,
Improve the service life of idler wheel 42.In the present embodiment, the outer diameter of encapsulated body is 1mm smaller than the internal diameter of spiral slide 31.At other
In embodiment, the outer diameter of encapsulated body can also, 1.2mm, 1.5mm 0.5mm, 0.8mm smaller than the internal diameter of spiral slide 31,1.8mm,
Other numerical value such as 2mm.
As preferred embodiment, the side wall of spiral slide 31 is provided with fluting (not shown), is provided with rubber in fluting
Rubber mat (not shown).The setting of rubber pad can effectively reduce noise when idler wheel 42 moves in spiral slide 31, simultaneously
The service life of idler wheel 42 can be improved to avoid the abrasion of idler wheel 42.
As preferred embodiment, the section of spiral slide 31 is trapezoidal, shape and the spiral slide 31 of idler wheel 42
Shape is adapted.The section of spiral slide 31 is set as trapezoidal, when so that idler wheel 42 moving in spiral slide 31, has and makes by oneself
The effect of the heart, improves reliability of structure.In other embodiments, the section of spiral slide 31 may be rectangle etc. other
Shape.
As preferred embodiment, the both ends of screw arbor assembly 30 are provided with end cap 50, screw arbor assembly 30 and end cap 50
Between be provided with first bearing 51, cover board 60 is provided between two end caps 50, the outside of the end cap 50 of one end, which is provided with, to be used for
The mounting disc 70 of driving motor 10 is installed.Preferably, first bearing 51 there are two being arranged between screw arbor assembly 30 and end cap 50, two
A first bearing 51 is respectively deep groove ball bearing and angular contact ball bearing, can bear radial force and axial force.
As preferred embodiment, guidance set 80, guidance set are provided between screw arbor assembly 30 and open tube 20
80 include the second axis for being set to the sliding rail 81 of 20 two sides of open tube and being set to 50 two sides of end cap and matching with sliding rail 81
Hold 82.Second bearing 82 is matched with sliding rail 81, plays the role of guiding to screw arbor assembly 30, while reducing screw arbor assembly 30
Frictional force when opposed open pipe 20 moves, so that the movement of screw arbor assembly 30 is more smooth.Preferably, 50 two sides of end cap are all provided with
Second bearing 82 there are four setting, the axial direction of two of them second bearing and the bottom surface of sliding rail are perpendicular, another two second bearing
It is axial parallel with the bottom surface of sliding rail, so that the movement of screw arbor assembly 30 is more steady.
As preferred embodiment, the middle part of cover board 60 is provided with observation window 61, in order to observe screw arbor assembly 30
Situation.Preferably, the quantity of observation window 61 is two.The outside of screw arbor assembly 30 is provided with blimp (not shown).Blimp
Play the role of dust-proof sound insulation, improves the service life of structure.Deceleration is provided between driving motor 10 and screw arbor assembly 30
Device 90.
Above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacement belong to
In the utility model range claimed.
Claims (10)
1. a kind of screw bearing transmission system, it is characterised in that: including nut assembly, the screw rod matched with the nut assembly
Component and driving motor for driving screw arbor assembly movement, the nut assembly include open tube and several
The bearing assembly for being set to the medial surface of the open tube and helically arranging, the screw arbor assembly are provided with and the bearing group
The spiral slide that part matches, the bearing assembly include the fixing axle being connected with the open tube, and the one of the fixing axle
End is fixedly connected with the open tube, and the other end of the fixing axle is provided with idler wheel, between the idler wheel and the fixing axle
It is provided with rolling element.
2. screw bearing transmission system as described in claim 1, it is characterised in that: the open tube is the circle for being provided with opening
Pipe, the medial surface of the open tube are provided with several threaded holes matched with the bearing assembly, several described screw threads
It helically arranges in the medial surface of the open tube in hole.
3. screw bearing transmission system as described in claim 1, it is characterised in that: the outside of the idler wheel is provided with encapsulated
The outer diameter of body, the encapsulated body is 0.5~2mm smaller than the internal diameter of the spiral slide.
4. screw bearing transmission system as described in claim 1, it is characterised in that: the side wall of the spiral slide is provided with out
Slot is provided with rubber pad in the fluting.
5. screw bearing transmission system as described in claim 1, it is characterised in that: the section of the spiral slide be it is trapezoidal,
The shape of the idler wheel and the shape of the spiral slide are adapted.
6. screw bearing transmission system as described in claim 1, it is characterised in that: the both ends of the screw arbor assembly are provided with
End cap is provided with first bearing, is provided with cover board, one end between two end caps between the screw arbor assembly and the end cap
The end cap on the outside of be provided with mounting disc for installing the driving motor.
7. screw bearing transmission system as claimed in claim 6, it is characterised in that: the screw arbor assembly and the open tube it
Between be provided with guidance set, the guidance set includes being set to the sliding rail of the open tube two sides and being set to the end
Lid two sides and the second bearing matched with the sliding rail.
8. screw bearing transmission system as claimed in claim 6, it is characterised in that: be provided with observation in the middle part of the cover board
Window.
9. screw bearing transmission system as described in claim 1, it is characterised in that: the outside of the screw arbor assembly be provided with every
Sound cover.
10. screw bearing transmission system as described in claim 1, it is characterised in that: the driving motor and the screw rod group
Retarder is provided between part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821682230.0U CN208966964U (en) | 2018-10-17 | 2018-10-17 | A kind of screw bearing transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821682230.0U CN208966964U (en) | 2018-10-17 | 2018-10-17 | A kind of screw bearing transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966964U true CN208966964U (en) | 2019-06-11 |
Family
ID=66760009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821682230.0U Active CN208966964U (en) | 2018-10-17 | 2018-10-17 | A kind of screw bearing transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139845A (en) * | 2018-10-17 | 2019-01-04 | 深圳盛世电梯股份有限公司 | A kind of screw bearing transmission system |
-
2018
- 2018-10-17 CN CN201821682230.0U patent/CN208966964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139845A (en) * | 2018-10-17 | 2019-01-04 | 深圳盛世电梯股份有限公司 | A kind of screw bearing transmission system |
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