CN208966966U - A kind of bearing screw driven system - Google Patents
A kind of bearing screw driven system Download PDFInfo
- Publication number
- CN208966966U CN208966966U CN201821682241.9U CN201821682241U CN208966966U CN 208966966 U CN208966966 U CN 208966966U CN 201821682241 U CN201821682241 U CN 201821682241U CN 208966966 U CN208966966 U CN 208966966U
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- Prior art keywords
- bearing
- screw
- assembly
- screw shaft
- driven system
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Abstract
The utility model discloses a kind of bearing screw driven systems, including nut assembly, the screw arbor assembly matched with nut assembly and the driving motor for driving screw arbor assembly to move, screw arbor assembly includes the screw shaft being connected with driving motor, and several bearing assemblies for being set to the outer peripheral surface of screw shaft and helically arranging, nut assembly is provided with the spiral slide matched with bearing assembly, bearing assembly includes the fixing axle being arranged radially along screw shaft, one end of fixing axle is fixedly connected with screw shaft, the other end of fixing axle is provided with idler wheel, rolling element is provided between idler wheel and fixing axle.The bearing screw driven system of the utility model, is not only simple in structure, and reduces difficulty of processing and processing cost, and improve reliability of structure and bearing capacity.
Description
Technical field
The utility model relates to screw drive technical field more particularly to a kind of bearing screw driven 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 driven system that a kind of structure is simple, 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 bearing screw driven system,
It is not only simple in structure, and reduces difficulty of processing and processing cost, and improve reliability of structure and bearing capacity.
The utility model adopts the following technical solution realizes:
A kind of bearing screw driven 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, screw arbor assembly includes the screw shaft being connected with driving motor and several set
The bearing assembly for being placed in the outer peripheral surface of screw shaft and helically arranging, nut assembly are provided with the spiral matched with bearing assembly
Slideway, bearing assembly include the fixing axle being arranged radially along screw shaft, and one end of fixing axle is fixedly connected with screw shaft, fixed
The other end of axis is provided with idler wheel, and rolling element is provided between idler wheel and fixing axle.
Further, the outer peripheral surface of screw shaft is provided with several threaded holes matched with bearing assembly, several spiral shells
Pit is helically arranged in the outer peripheral surface of screw shaft.
Further, one end of fixing axle is provided with the external screw thread closed with corresponding threaded holes.
Further, rolling element is roller.
Further, the both ends of screw shaft are provided with end cap, and bearing, two end caps are provided between screw shaft and end cap
Between be provided with cover board, the mounting disc for installing driving motor is provided on the outside of the end cap of one end.
Further, the two sides of nut assembly are provided with sliding rail, and the two sides of end cap are provided with to be matched with sliding rail
Sliding block.
Further, observation window is provided in the middle part of cover board.
Further, the outside of screw arbor assembly is provided with blimp.
Further, retarder is provided between driving motor and screw shaft.
Further, nut assembly includes several opening nut pipes being sequentially connected end to end, two adjacent opening spiral shells
It is fixedly connected between main pipe by connecting plate.
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, idler wheel makes rotating motion in spiral slide, improves the carrying of system
Power；Several bearing assemblies screw shaft outer peripheral surface and helically arrange, to be matched with the spiral slide of nut assembly, drop
Low difficulty of processing and processing cost；By the fixing axle being arranged radially along screw shaft, one end of fixing axle and screw shaft are solid
Fixed connection, the other end of fixing axle is provided with idler wheel, the technological means of rolling element is provided between idler wheel and fixing axle, so that respectively
A bearing assembly is mutually indepedent, not only simplifies structure, and improve reliability of structure.
Detailed description of the invention
Fig. 1 is the perspective view of the bearing screw driven system of the utility model embodiment；
Fig. 2 is the stereogram exploded view of the bearing screw driven system of the utility model embodiment；
Fig. 3 is the main view of the bearing screw driven 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 screw arbor assembly of the utility model embodiment；
Fig. 6 is the stereogram exploded view of the screw arbor assembly of the utility model embodiment；
Fig. 7 is the perspective view of the bearing assembly of the utility model embodiment.
In figure: 10, driving motor；20, nut assembly；21, spiral slide；22, sliding rail；23, be open nut pipe；24, even
Fishplate bar；30, screw shaft；31, threaded hole；40, bearing assembly；41, fixing axle；42, idler wheel；50, end cap；51, bearing；52, sliding
Block；60, cover board；61, observation window；70, mounting disc；80, 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.
Bearing screw driven system as shown in figs. 1-7, including nut assembly 20, the screw rod matched with nut assembly 20
Component (not shown) and for drive screw arbor assembly move driving motor 10, screw arbor assembly includes being connected with driving motor 10
The screw shaft 30 connect and several bearing assemblies 40 for being set to the outer peripheral surface of screw shaft 30 and helically arranging, nut group
Part 20 is provided with the spiral slide 21 matched with bearing assembly 40, and bearing assembly 40 includes being arranged radially along screw shaft 30
One end of fixing axle 41, fixing axle 41 is fixedly connected with screw shaft 30, and the other end of fixing axle 41 is provided with idler wheel 42, idler wheel 42
Rolling element (not shown) is provided between fixing axle 41.
By the driving motor 10 being connected with screw arbor assembly, to drive screw arbor assembly opposing nut component 20 to rotate, and
The linear motion for realizing screw arbor assembly, in rotational movement process, idler wheel 42 makes rotating motion in spiral slide 21, improves and is
The bearing capacity of system；Several bearing assemblies 40 screw shaft 30 outer peripheral surface and helically arrange, with the spiral shell with nut assembly 20
Rotation slideway 21 matches, and reduces difficulty of processing and processing cost；By the fixing axle 41 being arranged radially along screw shaft 30, Gu
One end of dead axle 41 is fixedly connected with screw shaft 30, and the other end of fixing axle 41 is provided with idler wheel 42, idler wheel 42 and fixing axle 41
Between be provided with the technological means of rolling element so that each bearing assembly 40 is mutually indepedent, not only simplify structure, and improve
Reliability of structure.
As preferred embodiment, the outer peripheral surface of screw shaft 30 is provided with several spiral shells matched with bearing assembly 40
Pit 31, several threaded holes 31 are helically arranged in the outer peripheral surface of screw shaft 30.The quantity and bearing assembly 40 of threaded hole 31
Quantity it is equal, and correspond.The quantity of threaded hole 31 can be selected according to the length of screw shaft 30 and screw pitch.
As preferred embodiment, one end of fixing axle 41 is provided with the external screw thread matched with threaded hole 31 and (does not scheme
Show).By the cooperation of external screw thread and threaded hole 31, so that bearing assembly 40 is fixed on screw shaft 30.Preferably, rolling element is
Roller.Roller can bear heavy duty, improve the bearing capacity of structure.
As preferred embodiment, the both ends of screw shaft 30 are provided with end cap 50, between screw shaft 30 and end cap 50
It is provided with bearing 51, cover board 60 is provided between two end caps 50, the outside of the end cap 50 of one end is provided with for installing driving
The mounting disc 70 of motor 10.Preferably, bearing 51, two bearings 51 are respectively there are two settings between screw shaft 30 and end cap 50
Deep groove ball bearing and angular contact ball bearing can bear radial force and axial force.
As preferred embodiment, the two sides of nut assembly 20 are provided with sliding rail 22, and the two sides of end cap 50 are respectively provided with
There is the sliding block 52 matched with sliding rail 22.Preferably, sliding rail 22 is line slide rail.Sliding rail 22 matches with sliding block 52 and plays guiding
Effect so that screw arbor assembly can opposing nut component 20 move in a straight line.
As preferred embodiment, the middle part of cover board 60 is provided with observation window 61, in order to observe the feelings of screw arbor assembly
Condition.The outside of screw arbor assembly is provided with blimp (not shown).Blimp plays the role of dust-proof sound insulation, improves making for structure
Use the service life.Retarder 80 is provided between driving motor 10 and screw shaft 30.
As preferred embodiment, nut assembly 20 includes the opening nut pipe 23 that several are sequentially connected end to end, phase
It is fixedly connected between two adjacent opening nut pipes 23 by connecting plate 24.In other embodiments, spiral shell can be adjusted as needed
The length of female component 20, so that the use length of the bearing screw driven system of the utility model is unrestricted, application is wider
It is general.
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 bearing screw driven 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 screw arbor assembly includes being connected with the driving motor
The screw shaft connect and several bearing assemblies for being set to the outer peripheral surface of the screw shaft and helically arranging, the nut
Component is provided with the spiral slide matched with the bearing assembly, and the bearing assembly includes setting along the radial direction of the screw shaft
The fixing axle set, one end of the fixing axle are fixedly connected with the screw shaft, and the other end of the fixing axle is provided with idler wheel,
Rolling element is provided between the idler wheel and the fixing axle.
2. bearing screw driven system as described in claim 1, it is characterised in that: if the outer peripheral surface of the screw shaft is provided with
The dry threaded hole matched with the bearing assembly, several described threaded holes are helically arranged in the outer peripheral surface of the screw shaft
Cloth.
3. bearing screw driven system as claimed in claim 2, it is characterised in that: one end of the fixing axle is provided with and institute
State the external screw thread of corresponding threaded holes conjunction.
4. bearing screw driven system as described in claim 1, it is characterised in that: the rolling element is roller.
5. bearing screw driven system as described in claim 1, it is characterised in that: the both ends of the screw shaft are provided with end
Lid, is provided with bearing, cover board, the end of one end is provided between two end caps between the screw shaft and the end cap
The mounting disc for installing the driving motor is provided on the outside of lid.
6. bearing screw driven system as claimed in claim 5, it is characterised in that: the two sides of the nut assembly are provided with
Sliding rail, the two sides of the end cap are provided with the sliding block matched with the sliding rail.
7. bearing screw driven system as claimed in claim 5, it is characterised in that: be provided with observation in the middle part of the cover board
Window.
8. bearing screw driven system as described in claim 1, it is characterised in that: the outside of the screw arbor assembly be provided with every
Sound cover.
9. bearing screw driven system as described in claim 1, it is characterised in that: the driving motor and the screw shaft it
Between be provided with retarder.
10. bearing screw driven system as described in claim 1, it is characterised in that: the nut assembly include several according to
The opening nut pipe of secondary head and the tail connection is fixedly connected between the opening nut pipe of adjacent two by connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821682241.9U CN208966966U (en) | 2018-10-17 | 2018-10-17 | A kind of bearing screw driven system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821682241.9U CN208966966U (en) | 2018-10-17 | 2018-10-17 | A kind of bearing screw driven system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966966U true CN208966966U (en) | 2019-06-11 |
Family
ID=66758761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821682241.9U Active CN208966966U (en) | 2018-10-17 | 2018-10-17 | A kind of bearing screw driven system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099128A (en) * | 2018-10-17 | 2018-12-28 | 深圳盛世电梯股份有限公司 | A kind of bearing screw driven system |
-
2018
- 2018-10-17 CN CN201821682241.9U patent/CN208966966U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099128A (en) * | 2018-10-17 | 2018-12-28 | 深圳盛世电梯股份有限公司 | A kind of bearing screw driven system |
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