CN201223811Y - Double-thread pressure clearance adjusting mechanism - Google Patents
Double-thread pressure clearance adjusting mechanism Download PDFInfo
- Publication number
- CN201223811Y CN201223811Y CNU2008200252036U CN200820025203U CN201223811Y CN 201223811 Y CN201223811 Y CN 201223811Y CN U2008200252036 U CNU2008200252036 U CN U2008200252036U CN 200820025203 U CN200820025203 U CN 200820025203U CN 201223811 Y CN201223811 Y CN 201223811Y
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- CN
- China
- Prior art keywords
- spring
- adjusting rod
- sleeve
- adjusting mechanism
- adjusting
- 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
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Abstract
The utility model discloses a bearing spring pressure gap adjusting mechanism, which comprises a U-shaped sliding track, a bearing, an adjusting rod and a spring pre-compressing device which is arranged at the lower end of the adjusting rod, wherein the bearing is fixed at the top end of the adjusting rod, arranged in the middle of the path of the U-shaped sliding track and in clearance fit with the U-shaped sliding track; the spring pre-compressing device comprises a spring, a guiding shell and a nut; a frame, the spring, the nut and the guiding shell are sleeved on the adjusting rod in sequence from top to bottom; the upper end of the spring is propped against the frame, the lower bottom end thereof is compressed by the nut; and the upper end of the guiding shell is fixedly connected to the frame, and the other end thereof is sleeved on the adjusting rod and in clearance fit with the adjusting rod. The adjusting mechanism achieves the following beneficial effects: (1) a manner that the bearing matches with the U-shaped sliding track is adopted, therefore, the adjusting mechanism has good flexibility; and (2) a spring pre-compressing device is adopted, therefore, not only the requirement for adjusting large gap is satisfied, but also the mechanical fatigue of the adjusting rod is reduced, and the service life of the entire adjusting mechanism is prolonged.
Description
Technical field
The utility model relates to a kind of pressure gap adjusting mechanism, particularly a kind of pair of screw thread pressure gap adjusting mechanism.
Background technology
The counterpunch board of impact breaker generally all is provided with the pressure clearance adjustment mechanism, by it being adjusted the gap that changes counterpunch board and rotor and the impact number of times of material, thereby can change the granularity of product.Traditional governor motion has following three kinds: first kind is dead-weight, adjusts by Hanging bolt; Second kind is fluid pressure type, controls adjustment by hydraulic servomechanism; The third is a spring, realizes by the spring guiding mechanism.But all there is obvious defects in above three kinds of guiding mechanisms, and first kind of dead-weight structure and adjustment mode are all simple, but the particle size uniformity of product is poor; Second kind of fluid pressure type better performances, but complex structure, cost is higher; The third spring is used more extensive, but structure is not compact and complicated.
Summary of the invention
Problem to be solved in the utility model is: a kind of pair of screw thread pressure gap adjusting mechanism is provided, and this governor motion not only adjustable range is big, and adjusting rod is difficult for being stuck, and can also eliminate the influence to mechanism of material and dust.
In order to solve the problems of the technologies described above, of the present utility model pair of screw thread pressure gap adjusting mechanism, comprise inner and outer wall be equipped with the sleeve of screw thread, be positioned at the sleeve top end cap, with the joining thread bush of sleeve external screw thread, the spring that is positioned at sleeve inner, adjusting rod and spring stop, end cap is that internal thread connects with sleeve, spring stop is positioned at the bottom of sleeve and is welded on the top of adjusting rod, the upper end of spring leans against on the end cap, and the lower end leans against on the spring stop; The upper end of thread bush is provided with locking nut; The bottom of sleeve is provided with dust slinger.
The beneficial effect that the utility model is obtained is: (1) because spring pressure can be adjusted arbitrarily, so the adjusting range of whole adjusting head is big, and adjusting rod is difficult for stuck; (2) bottom of sleeve is provided with dust slinger, thereby can eliminate dust and must influence whole governor motion.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, end cap, 2, sleeve, 3, locking nut, 4, thread bush, 5, spring, 6, adjusting rod, 7, dust slinger, 8, spring stop.
The specific embodiment
As shown in Figure 1, of the present utility model pair of screw thread pressure gap adjusting mechanism, comprise inner and outer wall be equipped with the sleeve 2 of screw thread, be positioned at sleeve 2 tops end cap 1, with the joining thread bush 4 of sleeve 2 external screw threads, the spring 5 that is positioned at sleeve 2 inside, adjusting rod 6 and spring stop 8, end cap 1 connects for internal thread with sleeve 2, spring stop 8 is positioned at the bottom of sleeve 2 and is welded on the top of adjusting rod 6, the upper end of spring 5 leans against on the end cap 1, and the lower end leans against on the spring stop 8; The upper end of thread bush 4 is provided with locking nut 3; The bottom of sleeve 2 is provided with dust slinger 7.
After adopting this governor motion, because the pressure of spring 5 can be regulated arbitrarily, so spring 2 also is adjustable arbitrarily by the pressure that spring stop 8 is applied on the adjusting rod 6, thereby, the adjusting range of this governor motion is big, adjusting rod 6 is difficult for stuck, again owing to be provided with dust slinger 7 in the bottom of sleeve 2, thereby can eliminate the influence of dust to this governor motion.
Claims (3)
1. two screw thread pressure gap adjusting mechanism, it is characterized in that: comprise inner and outer wall be equipped with the sleeve of screw thread (2), be positioned at the end cap (1) on sleeve (2) top, with the joining thread bush of sleeve (2) external screw thread (4), be positioned at sleeve (2) inner spring (5), adjusting rod (6) and spring stop (8), end cap (1) connects for internal thread with sleeve (2), spring stop (8) is positioned at the bottom of sleeve (2) and is welded on the top of adjusting rod (6), the upper end of spring (5) leans against on the end cap (1), and the lower end leans against on the spring stop (8).
2. according to claim 1 pair of screw thread pressure gap adjusting mechanism is characterized in that: the upper end of described thread bush (4) is provided with locking nut (3).
3. according to claim 1 and 2 pair of screw thread pressure gap adjusting mechanism is characterized in that: the bottom of described sleeve (2) is provided with dust slinger (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200252036U CN201223811Y (en) | 2008-07-07 | 2008-07-07 | Double-thread pressure clearance adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200252036U CN201223811Y (en) | 2008-07-07 | 2008-07-07 | Double-thread pressure clearance adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201223811Y true CN201223811Y (en) | 2009-04-22 |
Family
ID=40596688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200252036U Expired - Fee Related CN201223811Y (en) | 2008-07-07 | 2008-07-07 | Double-thread pressure clearance adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201223811Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806545A (en) * | 2012-08-14 | 2012-12-05 | 蚌埠朝阳玻璃机械有限公司 | Pretension device with positioning effect |
| CN104826699A (en) * | 2015-05-08 | 2015-08-12 | 中联重科股份有限公司 | Crusher and adjusting device thereof |
-
2008
- 2008-07-07 CN CNU2008200252036U patent/CN201223811Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806545A (en) * | 2012-08-14 | 2012-12-05 | 蚌埠朝阳玻璃机械有限公司 | Pretension device with positioning effect |
| CN104826699A (en) * | 2015-05-08 | 2015-08-12 | 中联重科股份有限公司 | Crusher and adjusting device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 |