CN202439334U - Worm-and-gear reducer for printing machine - Google Patents
Worm-and-gear reducer for printing machine Download PDFInfo
- Publication number
- CN202439334U CN202439334U CN2012200442624U CN201220044262U CN202439334U CN 202439334 U CN202439334 U CN 202439334U CN 2012200442624 U CN2012200442624 U CN 2012200442624U CN 201220044262 U CN201220044262 U CN 201220044262U CN 202439334 U CN202439334 U CN 202439334U
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- Prior art keywords
- worm
- gear
- casing
- printing machine
- speed reducer
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- 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
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 19
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a worm-and-gear reducer for a printing machine, which comprises a cabinet, a worm gear and a worm, wherein the worm gear is positioned in the cabinet; one end of the worm is inserted to the inside of the cabinet and meshes with the worm gear; the worm gear is also synchronously connected with an output shaft which penetrates out of the cabinet; and the worm gear and the worm form a double-lead worm-and-gear. Compared with the existing worm-and-gear reducer, the reducer disclosed by the utility model adopts the double-lead worm-and-gear, the worm can be adjusted axially to change the mesh clearance between the worm gear and the worm, thereby reducing the driving error and ensuring the driving accuracy; and after the worm gear and the worm are worn, the user does not need to change new worm-and-gear, thereby lowering the operation and maintenance cost of the reducer.
Description
Technical field
The utility model relates to a kind of reductor, especially a kind of worm-gear speed reducer that is applied to printing machine.
Background technology
Reductor is a kind of power drive mechanism, and it mainly is that the rotative speed of machine shaft is adjusted to the needed rotative speed of equipment, obtains bigger torque simultaneously.
Traditional reductor normally adopts gear drive, mainly utilizes the difference of the radius of gyration of multi-stage gear to realize the deceleration purpose.Yet gear-driven reductor accuracy is lower, in some printing equipments; Usually use worm-gear speed reducer, its compact conformation, gearratio are bigger, still; Worm-gear speed reducer can produce bigger frictional force in use, after using the long period; The worm and gear serious wear makes the back lash of worm gear and worm screw increase, thereby influences the accuracy of reductor; In order to guarantee accuracy, the worm and gear that need more renew usually, this has just increased operation, the maintenance cost of reductor.
The utility model content
To the deficiency of prior art, the purpose of the utility model is intended to provide a kind of printing machine to use worm-gear speed reducer, and it possesses higher accuracy, and operation, maintenance cost are relatively low.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of printing machine is used worm-gear speed reducer; Comprise casing, worm gear and worm screw, worm gear is positioned at casing, and the end of worm screw inserts box house and worm gear engagement; Also be connected with synchronously on the worm gear one pass casing output shaft, worm gear and worm screw are two helical pitch worm and gears.
Output shaft passes the outside surface of casing and is provided with the output keyway.
Worm screw is positioned at the outside surface of casing and is provided with the input keyway.
Be fixed with the bearing that is used to limit worm screw on the casing.
The beneficial effect of the utility model is:
Than existing worm-gear speed reducer, the reductor of the utility model adopts two helical pitch worm and gears, can adjust worm screw vertically; To change the back lash of worm and wheel; Reduce driving error, guarantee transmission accuracy, after the worm and gear wearing and tearing; Do not need the worm and gear that more renews, reduced the operation and the maintenance cost of reductor.
Description of drawings
Fig. 1 is the front view of the utility model worm-gear speed reducer;
Fig. 2 is the side view of worm-gear speed reducer shown in Figure 1.
The specific embodiment
Below, in conjunction with the accompanying drawing and the specific embodiment, the utility model done further describing:
Like Fig. 1, shown in 2, use worm-gear speed reducer for a kind of printing machine of the utility model, it comprises cabinet 1, worm gear 2, worm screw 3; Worm gear 2 is installed in the casing 1; The end of worm screw 3 inserts casing 1 inside and meshes with worm gear 2, is connected with an output shaft 5 on the worm gear 2 synchronously, and this output shaft 5 is the output of reductor; Worm screw 3 is positioned at the part of cabinet 1 outside then as the input of reductor, and worm gear 2 adopts two helical pitch worm and gears with worm screw 3.
In order to connect synchronously with the equipment power transmission shaft; Stretch out casing 1 outside surface at output shaft 5 and be provided with a keyway 51, simultaneously, connect synchronously with machine shaft in order to make worm screw 3; Be positioned at casing 1 outside surface worm screw 3 and be provided with a keyway 31; And on casing 1, be installed with a bearing 4, worm screw 3 is connected the inner ring of bearing 4, can effectively prevent the generation beat when rotating of worm screw 3.
Owing to adopt two helical pitch worm and gears, after worm and gear uses the long period to wear and tear, can along worm screw 3 axial adjustment its with the distance of worm gear 2, thereby change the back lash of worm gear 2 and worm screw 3, the accuracy of assurance transmission.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection domain of the utility model claim all according to the technical scheme and the design of above description.
Claims (4)
1. a printing machine is used worm-gear speed reducer, it is characterized in that, comprises casing, worm gear and worm screw; Worm gear is positioned at casing; The end of worm screw inserts box house and worm gear engagement, also be connected with synchronously on the worm gear one pass casing output shaft, worm gear and worm screw are pair helical pitch worm and gears.
2. printing machine as claimed in claim 1 is used worm-gear speed reducer, it is characterized in that, output shaft passes the outside surface of casing and is provided with the output keyway.
3. printing machine as claimed in claim 1 is used worm-gear speed reducer, it is characterized in that, worm screw is positioned at the outside surface of casing and is provided with the input keyway.
4. printing machine as claimed in claim 1 is used worm-gear speed reducer, it is characterized in that, is fixed with the bearing that is used to limit worm screw on the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200442624U CN202439334U (en) | 2012-02-10 | 2012-02-10 | Worm-and-gear reducer for printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200442624U CN202439334U (en) | 2012-02-10 | 2012-02-10 | Worm-and-gear reducer for printing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202439334U true CN202439334U (en) | 2012-09-19 |
Family
ID=46820788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200442624U Expired - Fee Related CN202439334U (en) | 2012-02-10 | 2012-02-10 | Worm-and-gear reducer for printing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202439334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218369A (en) * | 2017-07-10 | 2017-09-29 | 广东云印科技有限公司 | A kind of intermittently-driving structure of printing equipment |
-
2012
- 2012-02-10 CN CN2012200442624U patent/CN202439334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218369A (en) * | 2017-07-10 | 2017-09-29 | 广东云印科技有限公司 | A kind of intermittently-driving structure of printing equipment |
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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: 20120919 Termination date: 20180210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |