CN204852215U - Screw -nut drive mechanism - Google Patents
Screw -nut drive mechanism Download PDFInfo
- Publication number
- CN204852215U CN204852215U CN201520520906.6U CN201520520906U CN204852215U CN 204852215 U CN204852215 U CN 204852215U CN 201520520906 U CN201520520906 U CN 201520520906U CN 204852215 U CN204852215 U CN 204852215U
- Authority
- CN
- China
- Prior art keywords
- screw
- synchronizing wheel
- hollow shaft
- nut
- motor
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a screw -nut drive mechanism, this mechanism includes fixed plate, ball screw, screw -nut, drive assembly and motor, drive assembly includes hollow shaft and big synchronizing wheel, and the hollow shaft passes through the bearing frame to be installed on the fixed plate, and big synchronizing wheel cover is established on the periphery of hollow shaft, screw -nut from the hole of the hollow shaft after -fixing of packing into, and two assembly was on the lead screw fixing base after ball screw ran through screw -nut, motor drive is connected with little synchronizing wheel, and passes through the timing belt drive between little synchronizing wheel and the big synchronizing wheel, after the little synchronizing wheel of motor drive drive passed through the big synchronizing wheel of hold -in range drive, screw -nut moved on ball screw. The utility model discloses owing to be that screw -nut rotates to the radial force that produces by the ball screw overlength has been eliminated, avoid diminishing because of the ball screw overlength leads to driven thrust consumption to make ball screw be difficult to damaged, during the screw -nut transmission, the noise greatly reduced of production.
Description
Technical field
The utility model relates to working machine manufacturing technology field, particularly relates to a kind of screw nut driving mechanism.
Background technique
At present, the driving of known ball screw is all that motor connects one end of ball screw by coupling, is rotated and drives ball screw to rotate, thus realize the motion of ball screw upper end object by motor.But when ball screw is very long, very large torsion can be consumed, and very large radial force can be produced when ball screw rotates, also can produce very large noise, even can feel that ball screw has very large swing, be easy to the damage causing ball screw.
Model utility content
For the deficiency existed in above-mentioned technology, the utility model provides the screw nut driving mechanism of the little and use safety of a kind of noise.
For achieving the above object, the utility model provides a kind of screw nut driving mechanism, comprises fixed plate, ball screw, feed screw nut, transmitting assemblies and motor; Described transmitting assemblies comprises hollow shaft and large synchronizing wheel, described hollow shaft is arranged on fixed plate by bearing support, described large synchronous wheel case is located at the outer of hollow shaft and places, described feed screw nut is fixing after loading from the endoporus of hollow shaft, and after described ball screw runs through feed screw nut, two is assemblied on screw mandrel fixed base; Described motor drives and is connected with little synchronizing wheel, and is driven by Timing Belt between little synchronizing wheel and large synchronizing wheel; Described motor driven belts is moved after little synchronizing wheel drives large synchronizing wheel by Timing Belt, and feed screw nut moves on ball screw.
Wherein, described transmitting assemblies also comprises inner spacing collar and two angular contact ball bearings, described inner spacing collar is clamped in three after between two angular contact ball bearings and is fitted in bearing support, and two angular contact ball bearings are pressed in bearing support by bearing plate, described hollow shaft is arranged in bearing support after loading in two angular contact ball bearings.
Wherein, described transmitting assemblies also comprises outer separator, and described outer separator, large synchronizing wheel and large locking nut are assemblied in the outer of hollow shaft successively and place, and outer separator is fixed on fixed plate by flat key.
Wherein, this mechanism also comprises motor cabinet and regulating block, and described motor is arranged on the side of motor cabinet, and the coupling of motor to drive with little synchronizing wheel after running through the opposite side of motor cabinet and is connected, and described motor cabinet is fixed on fixed plate; Described regulating block is locked on motor cabinet by adjusting screw.
Wherein, two of described ball screw is all locked on screw mandrel fixed base by little locking nut.
The beneficial effects of the utility model are: compared with prior art, the screw nut driving mechanism that the utility model provides, two of ball screw is assemblied on screw mandrel fixed base, and large synchronous wheel case is located at the outer of hollow shaft places, feed screw nut is fixing after loading from the endoporus of hollow shaft, the driving of motor thus drive the movement of feed screw nut on ball screw; Motor driven belts is moved after little synchronizing wheel drives large synchronizing wheel by Timing Belt, and feed screw nut moves on ball screw, reaches the object that band animal body is movable; This structure reaches following effect: owing to being that feed screw nut rotates, thus eliminates by the radial force of the long generation of ball screw; Avoid the thrust consumption causing transmission because ball screw is long to diminish, thus it is damaged that ball screw is not easy; During screw nut driving, the noise of generation reduces greatly.
Accompanying drawing explanation
Fig. 1 is the structural drawing of screw nut driving mechanism of the present utility model;
Fig. 2 is the structural drawing after Fig. 1 assembles.
Primary component symbol description is as follows:
10, fixed plate 11, ball screw
12, feed screw nut 13, transmitting assemblies
14, motor 15, screw mandrel fixed base
16, little synchronizing wheel 17, Timing Belt
18, motor cabinet 19, regulating block
20, adjusting screw 21, little locking nut
131, hollow shaft 132, large synchronizing wheel
133, bearing support 134, inner spacing collar
135, angular contact ball bearing 136, bearing plate
137, outer separator 138, large locking nut.
Embodiment
In order to more clearly state the utility model, below in conjunction with accompanying drawing, the utility model is further described.
Refer to Fig. 1-2, the screw nut driving mechanism that the utility model provides, comprise fixed plate 10, ball screw 11, feed screw nut 12, transmitting assemblies 13 and motor 14; Transmitting assemblies 13 comprises hollow shaft 131 and large synchronizing wheel 132, hollow shaft 131 is arranged on fixed plate 10 by bearing support 133, large synchronizing wheel 132 is set in the outer of hollow shaft 131 and places, feed screw nut 12 is fixing after loading from the endoporus of hollow shaft 131, and after ball screw 11 runs through feed screw nut 12, two is assemblied on screw mandrel fixed base 15; Motor 14 drives and is connected with little synchronizing wheel 16, and is driven by Timing Belt 17 between little synchronizing wheel 16 and large synchronizing wheel 132; After motor 14 drives and drives little synchronizing wheel 16 to drive large synchronizing wheel 132 by Timing Belt 17, feed screw nut 12 moves on ball screw 11.
Compared to the situation of prior art, the screw nut driving mechanism that the utility model provides, two of ball screw 11 is assemblied on screw mandrel fixed base 15, and large synchronizing wheel 132 is set in the outer of hollow shaft 131 places, feed screw nut 12 is fixing after loading from the endoporus of hollow shaft 131, the driving of motor 14 thus drive the movement of feed screw nut 12 on ball screw 11; After motor 14 drives and drives little synchronizing wheel 16 to drive large synchronizing wheel 132 by Timing Belt 17, feed screw nut 12 moves on ball screw 11, reaches the object that band animal body is movable; This structure reaches following effect: owing to being that feed screw nut rotates, thus eliminates by the radial force of the long generation of ball screw; Avoid the thrust consumption causing transmission because ball screw is long to diminish, thus it is damaged that ball screw is not easy; During screw nut driving, the noise of generation reduces greatly.
In the present embodiment, transmitting assemblies 13 also comprises inner spacing collar 134 and two angular contact ball bearings 135, inner spacing collar 134 is clamped in three after between two angular contact ball bearings 135 and is fitted in bearing support 133, and two angular contact ball bearings 135 are pressed in bearing support 133 by bearing plate 136, hollow shaft 131 is arranged in bearing support 133 after loading in two angular contact ball bearings 135, transmitting assemblies 13 also comprises outer separator 137, outer separator 137, large synchronizing wheel 132 and large locking nut 138 are assemblied in the outer of hollow shaft 131 successively and place, and large synchronizing wheel 132 is between outer separator 137 and large locking nut 138, the motion of large synchronizing wheel 132 is made to there will not be the phenomenon of skew, and outer separator 137 is fixed on fixed plate 10 by flat key.Certainly, be not limited to the concrete structure of transmitting assemblies in this case, can improve this assembly concrete structure according to actual conditions.
In the present embodiment, this mechanism also comprises motor cabinet 18 and regulating block 19, and motor 14 is arranged on the side of motor cabinet 18, and the coupling of motor 14 to drive with little synchronizing wheel 16 after running through the opposite side of motor cabinet 18 and is connected, and motor cabinet 18 is fixed on fixed plate 10; Regulating block 19 is locked on motor cabinet 18 by adjusting screw 20.Two of ball screw 11 is all locked on screw mandrel fixed base 15 by little locking nut 21.Certainly, be not limited in this case and by motor cabinet, motor be fixed on fixed plate, can also directly motor be fixed on motor cabinet.
Be only several specific embodiment of the present utility model above, but the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (5)
1. a screw nut driving mechanism, is characterized in that, comprises fixed plate, ball screw, feed screw nut, transmitting assemblies and motor; Described transmitting assemblies comprises hollow shaft and large synchronizing wheel, described hollow shaft is arranged on fixed plate by bearing support, described large synchronous wheel case is located at the outer of hollow shaft and places, described feed screw nut is fixing after loading from the endoporus of hollow shaft, and after described ball screw runs through feed screw nut, two is assemblied on screw mandrel fixed base; Described motor drives and is connected with little synchronizing wheel, and is driven by Timing Belt between little synchronizing wheel and large synchronizing wheel; Described motor driven belts is moved after little synchronizing wheel drives large synchronizing wheel by Timing Belt, and feed screw nut moves on ball screw.
2. screw nut driving mechanism according to claim 1, it is characterized in that, described transmitting assemblies also comprises inner spacing collar and two angular contact ball bearings, described inner spacing collar is clamped in three after between two angular contact ball bearings and is fitted in bearing support, and two angular contact ball bearings are pressed in bearing support by bearing plate, described hollow shaft is arranged in bearing support after loading in two angular contact ball bearings.
3. screw nut driving mechanism according to claim 2, it is characterized in that, described transmitting assemblies also comprises outer separator, and described outer separator, large synchronizing wheel and large locking nut are assemblied in the outer of hollow shaft successively and place, and outer separator is fixed on fixed plate by flat key.
4. screw nut driving mechanism according to claim 1, it is characterized in that, this mechanism also comprises motor cabinet and regulating block, described motor is arranged on the side of motor cabinet, and the coupling of motor to drive with little synchronizing wheel after running through the opposite side of motor cabinet and is connected, described motor cabinet is fixed on fixed plate; Described regulating block is locked on motor cabinet by adjusting screw.
5. screw nut driving mechanism according to claim 1, is characterized in that, two of described ball screw is all locked on screw mandrel fixed base by little locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520520906.6U CN204852215U (en) | 2015-07-18 | 2015-07-18 | Screw -nut drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520520906.6U CN204852215U (en) | 2015-07-18 | 2015-07-18 | Screw -nut drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852215U true CN204852215U (en) | 2015-12-09 |
Family
ID=54742762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520520906.6U Expired - Fee Related CN204852215U (en) | 2015-07-18 | 2015-07-18 | Screw -nut drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108463420A (en) * | 2016-01-11 | 2018-08-28 | 现代重工集团股份有限公司 | Board carrying robot |
-
2015
- 2015-07-18 CN CN201520520906.6U patent/CN204852215U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108463420A (en) * | 2016-01-11 | 2018-08-28 | 现代重工集团股份有限公司 | Board carrying robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20170718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |