CN207945258U - Main pinch roller transmission backlass mechanism under elimination - Google Patents
Main pinch roller transmission backlass mechanism under elimination Download PDFInfo
- Publication number
- CN207945258U CN207945258U CN201820099556.4U CN201820099556U CN207945258U CN 207945258 U CN207945258 U CN 207945258U CN 201820099556 U CN201820099556 U CN 201820099556U CN 207945258 U CN207945258 U CN 207945258U
- Authority
- CN
- China
- Prior art keywords
- nut
- gap
- disappears
- zanjon bearing
- backlass
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
- B30B1/263—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks work stroke adjustment means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
- B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Transmission Devices (AREA)
Abstract
Main pinch roller transmission backlass mechanism, belongs to tablet press machine field under elimination.It is characterized in that, nut is fixed on by the first zanjon bearing, thrust roller bearing, the second zanjon bearing on engine base, screw rod passes through the screwed hole of centre of both nut, the gap that disappears nut, two aspectant disk springs are sleeved on the gap nut external cylindrical surface that disappears, disk spring and the second zanjon bearing touch above, below disk spring contacted with round nut.Stripped nut, the gap nut that makes to disappear haul screw rod down, make screw flight lower part always with nut thread upper contact.The utility model has the advantages that eliminating thread pitch between leading screw and nut, keep transmission more accurate, accurate, more stablizes to make to suppress the tablet thickness come, hardness.
Description
Technical field
The utility model belongs to tablet press machine field.
Background technology
The vertical height of the lower pressure wheel of Highspeedrotarytabletpress and the thickness of tablet, hardness are closely bound up, it requires
The height Adjustment precision of lower pressure wheel is very high, controls within 0.01mm.Traditional lower pressure wheel elevating control uses worm drive,
The machining accuracy of nut and leading screw reaches 6 grades, but cannot completely eliminate the gap between nut and leading screw, is transformed into after rotating forward
When reversion, in certain angle, although nut rotation, after leading screw will also wait gaps to eliminate (stress side)
Working table movement could be driven, three bad results may be will produce in this way：1, the lag of leading screw rise and fall meeting having time；
2, there is error in height and position；3, the concussion of system can be caused in closed loop system.
Invention content
Main pinch roller transmission backlass mechanism under elimination, which is characterized in that nut passes through the first zanjon bearing, thrust roller
Bearing, the second zanjon bearing are fixed on engine base, and screw rod passes through the screwed hole of centre of both nut, the gap that disappears nut, and two face
The disk spring in face is sleeved on the gap nut external cylindrical surface that disappears, above disk spring and the second zanjon bearing touch, below disk spring
It is contacted with round nut.
Stripped nut, the gap nut that makes to disappear haul screw rod down, screw flight lower part are made to be connect always with nut thread top
It touches.
The utility model has the advantages that eliminating thread pitch between leading screw and nut, keep transmission more accurate, accurate, from
And the tablet thickness suppressed, hardness is made more to stablize.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model.
1-- engine bases
2-the first zanjon bearing
3-- nuts
4-- screw rods
5-- thrust roller bearings
6-- the second zanjon bearings
7-- end caps
8-- disk springs
9-- round nuts
10- disappears gap nut
Specific implementation mode
Nut 3 is fixed on by the first zanjon bearing 2, thrust roller bearing 5, the second zanjon bearing 6 on engine base 1, screw rod 4
Across the screwed hole of centre of both nut 3, the gap that disappears nut 10, two aspectant disk springs 8 are sleeved on the gap nut outside cylinder that disappears
Face, above disc spring contacted with the second zanjon bearing 6, below disc spring contacted with round nut 9,
Stripped nut, the gap nut that makes to disappear haul screw rod down, screw flight lower part are made to be connect always with nut thread top
It touches.
Claims (1)
1. main pinch roller transmission backlass mechanism under eliminating, which is characterized in that nut passes through the first zanjon bearing, thrust roller axis
Hold, the second zanjon bearing is fixed on engine base, screw rod passes through the screwed hole of centre of nut, both the gap that disappears nuts, and two are face-to-face
Disk spring be sleeved on the gap nut external cylindrical surface that disappears, above disk spring and the second zanjon bearing touch, below disk spring with
Round nut contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820099556.4U CN207945258U (en) | 2018-01-22 | 2018-01-22 | Main pinch roller transmission backlass mechanism under elimination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820099556.4U CN207945258U (en) | 2018-01-22 | 2018-01-22 | Main pinch roller transmission backlass mechanism under elimination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207945258U true CN207945258U (en) | 2018-10-09 |
Family
ID=63702038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820099556.4U Expired - Fee Related CN207945258U (en) | 2018-01-22 | 2018-01-22 | Main pinch roller transmission backlass mechanism under elimination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207945258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838526A (en) * | 2019-04-11 | 2019-06-04 | 陕西理工大学 | A kind of micro- backlash eliminating equipment of bolt and nut pair |
-
2018
- 2018-01-22 CN CN201820099556.4U patent/CN207945258U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838526A (en) * | 2019-04-11 | 2019-06-04 | 陕西理工大学 | A kind of micro- backlash eliminating equipment of bolt and nut pair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 Termination date: 20220122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |