CN201728158U - Driving device of scraper rotary gear - Google Patents
Driving device of scraper rotary gear Download PDFInfo
- Publication number
- CN201728158U CN201728158U CN2010202569620U CN201020256962U CN201728158U CN 201728158 U CN201728158 U CN 201728158U CN 2010202569620 U CN2010202569620 U CN 2010202569620U CN 201020256962 U CN201020256962 U CN 201020256962U CN 201728158 U CN201728158 U CN 201728158U
- Authority
- CN
- China
- Prior art keywords
- spring
- tooth bar
- scraper
- out against
- rotating gear
- 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 - Lifetime
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a driving device of a scraper rotary gear, which results in elastic contact between a scraper and a filter screen. The driving device comprises a case body. A rack case communicated with the case body is arranged on the case body, a scraper rotary gear is movably arranged inside the case body, a rack engaging with the scraper rotary gear is arranged inside the rack case, a spacing regulating mechanism is arranged on one side of the rack case in a penetrating manner, a driving cylinder is arranged on the other side of the rack case, a spring cavity is arranged on one end surface of the rack, a spring and a spring base are arranged inside the spring cavity from inside to outside, a guide post is arranged on the spring base, the spring is sheathed on the guide post, an end cover is arranged on the edge opening of the spring cavity, and the piston rod of the driving cylinder passes through a through hole formed on the end cover and is connected with the spring base. Since the driving cylinder indirectly pushes the rack, instead of direct way, when the scraper is butted against the filter screen, resistance is generated. Although the piston rod moves forwardly, the rack does not move any more due to the resistance. The driving device can prevent the scraper from scraping the filter screen.
Description
Technical field
The utility model relates to centrifuge, refers more particularly to the drive unit of the scraper rotating gear that is used to drive the scraper rotation in the centrifuge.
Background technology
As everyone knows, all be provided with doctor blade device in many centrifuges, be used to strike off the filter cake on the filter screen.Described doctor blade device comprises scraper and drives the scraper rotating gear and the drive unit thereof of scraper rotation.The drive unit of present scraper rotating gear, comprise: casing, casing is provided with the tooth bar case that communicates with it, be movably set with scraper rotating gear in the casing, be provided with the tooth bar that meshes with scraper rotating gear in the described tooth bar case, be equipped with the limit adjusting mechanism that matches with tooth bar on the side side plate of tooth bar case, also be provided with the driving cylinder on the opposite side side plate of tooth bar case, the piston rod that drives cylinder is provided with tooth bar, this tooth bar and scraper rotating gear engagement.The scraper here is that rigidity contacts with filter screen, requires the location of scraper quite accurate, and error is arranged slightly, and scraper will scratch filter screen.In actual use, the phenomenon that scraper scratches filter screen often takes place in the reasons such as precision owing to vibrations, blade shaft and the filter screen of centrifuge.
The utility model content
Technical problem to be solved in the utility model is: it is the drive unit of the scraper rotating gear of Elastic Contact that a kind of scraper and filter screen of making is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the drive unit of scraper rotating gear, comprise: casing, casing is provided with the tooth bar case that communicates with casing, be movably set with scraper rotating gear in the casing, be provided with tooth bar in the tooth bar case with the scraper rotating gear engagement, be equipped with the limit adjusting mechanism that matches with tooth bar on the one side side plate of tooth bar case, the opposite side side plate of tooth bar case is provided with and drives cylinder or drive oil cylinder, offer spring cavity on the one end end face of described tooth bar, be provided with spring and spring base in the spring cavity from inside to outside, spring base is provided with lead, and spring housing is on lead, and the bead of spring cavity is provided with end cap, the piston rod that drives cylinder or driving oil cylinder passes the through hole that is opened on the end cap, links to each other with spring base.
Described spring cavity also is provided with in the inboard of spring and holds out against seat, holding out against seat is provided with and holds out against post, the inner end of spring is sleeved on and holds out against on the post, offer the adjusting screwed hole that communicates with spring cavity on the other end end face of described tooth bar, regulate in the screwed hole and be provided with puller bolt, the top of puller bolt holds out against and is holding out against on the seat.
Also be provided with and tight bolt in the outside of puller bolt in the described adjusting screwed hole, and the top of tight bolt holds out against on puller bolt.
The concrete set-up mode of described limit adjusting mechanism is: offer screwed hole on the side side plate of described tooth bar case, be equipped with the adjusting bolt in the screwed hole.
Described adjusting bolt is provided with fastening screw nut.
The beneficial effects of the utility model are: directly do not promote tooth bar owing to drive cylinder or drive oil cylinder, but promote tooth bar indirectly by spring, produce resistance when scraper arrives to filter screen, although piston rod moves forward, tooth bar is hampered no longer mobile.Like this, scraper just can not scratch filter screen.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, base, 2, casing, 3, the tooth bar case, 4, tooth bar, 5, spring base, 6, spring, 7, hold out against seat, 8, puller bolt, 9, and tight bolt, 10, drive cylinder, 11, end cap, 12, lifting axle sleeve, 13, blade shaft, 14, scraper rotating gear, 15, scraper, 16, retainingf key, 17, main shaft, 18, draw key, 19, regulate bolt, 20, fastening screw nut.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As shown in Figure 1, the drive unit of scraper rotating gear described in the utility model, comprise: casing 2, casing 2 is provided with the tooth bar case 3 that communicates with it, be movably set with scraper rotating gear 14 on the base 1 of casing 2, be provided with tooth bar 4 in the tooth bar case 3 with scraper rotating gear 14 engagements, be equipped with the limit adjusting mechanism that matches with tooth bar 4 on the one side side plate of tooth bar case 3, the opposite side side plate of tooth bar case 3 is provided with and drives cylinder 10, the concrete structure of described limit adjusting mechanism comprises: be located in the adjusting bolt 19 in the screwed hole on the tooth bar case 3 one side side plates, regulate bolt 19 and be provided with fastening screw nut 20; Offer spring cavity on the one end end face of described tooth bar 4, be provided with spring 6 and spring base 5 in the spring cavity from inside to outside, spring base 5 is provided with lead, spring 6 is enclosed within on the lead, the bead of spring cavity is provided with end cap 11, the piston rod of described driving cylinder 10 passes the through hole that is opened on the end cap 11, links to each other with spring base 5; In the present embodiment, described spring cavity also is provided with in the inboard of spring 6 and holds out against seat 7, holding out against seat 7 is provided with and holds out against post, the inner end of spring 6 is sleeved on and holds out against on the post, offer the adjusting screwed hole that communicates with spring cavity on the other end end face of described tooth bar 4, regulate and be provided with puller bolt 8 and also tight bolt 9 in the screwed hole from inside to outside, the top of puller bolt 8 holds out against and is holding out against on the seat 7, and the top of tight bolt 9 holds out against on puller bolt 8.During practical application, also be provided with hollow main shaft 17 in the casing 2, blade shaft 13, lifting axle sleeve 12, main shaft 17 is movably arranged on the base 1 of casing 2, blade shaft 13 movable sets are on main shaft 17, lifting axle sleeve 12 is sleeved on the blade shaft 13, and, by bolting draw key 18 is arranged on the blade shaft 13, this draw key 18 axially is movably arranged in the keyway on lifting axle sleeve 12 inwalls, make between lifting axle sleeve 12 and the blade shaft 13 axially mutually noninterfere, circumferentially rotation synchronously, blade shaft 13 is provided with scraper 15, and lifting axle sleeve 12 is fixed together by retainingf key 16 and described scraper rotating gear 14.
As everyone knows, the driving cylinder 10 in the utility model can be realized by oil cylinder fully, does not repeat them here.
The course of work of the present utility model is: adjust gap between scraper 15 and the filter screen by regulating adjusting bolt 19 on the tooth bar case 3, because even scraper 15 is run into filter screen, be Elastic Contact also, can not scratch filter screen, thereby can transfer the gap between scraper 15 and the filter screen very little.Like this, scraper 15 just can be scraped the filter cake on the filter screen comparatively clean.
Claims (5)
1. the drive unit of scraper rotating gear, comprise: casing, casing is provided with the tooth bar case that communicates with casing, be movably set with scraper rotating gear in the casing, be provided with tooth bar in the tooth bar case with the scraper rotating gear engagement, be equipped with the limit adjusting mechanism that matches with tooth bar on the one side side plate of tooth bar case, the opposite side side plate of tooth bar case is provided with and drives cylinder or drive oil cylinder, it is characterized in that: offer spring cavity on the end end face of described tooth bar, be provided with spring and spring base in the spring cavity from inside to outside, spring base is provided with lead, spring housing is on lead, the bead of spring cavity is provided with end cap, and the piston rod that drives cylinder or driving oil cylinder passes the through hole that is opened on the end cap, links to each other with described spring base.
2. the drive unit of scraper rotating gear according to claim 1, it is characterized in that: described spring cavity also is provided with in the inboard of spring and holds out against seat, holding out against seat is provided with and holds out against post, the inner end of spring is sleeved on and holds out against on the post, offer the adjusting screwed hole that communicates with spring cavity on the other end end face of described tooth bar, regulate in the screwed hole and be provided with puller bolt, the top of puller bolt holds out against and is holding out against on the seat.
3. the drive unit of scraper rotating gear according to claim 2 is characterized in that: also be provided with and tight bolt in the outside of puller bolt in the described adjusting screwed hole, and the top of tight bolt holds out against on puller bolt.
4. according to the drive unit of claim 1,2 or 3 described scraper rotating gears, it is characterized in that: the concrete set-up mode of described limit adjusting mechanism is: offer screwed hole on the side side plate of described tooth bar case, be equipped with the adjusting bolt in the screwed hole.
5. the drive unit of scraper rotating gear according to claim 4, it is characterized in that: described adjusting bolt is provided with fastening screw nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202569620U CN201728158U (en) | 2010-07-12 | 2010-07-12 | Driving device of scraper rotary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202569620U CN201728158U (en) | 2010-07-12 | 2010-07-12 | Driving device of scraper rotary gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201728158U true CN201728158U (en) | 2011-02-02 |
Family
ID=43519316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202569620U Expired - Lifetime CN201728158U (en) | 2010-07-12 | 2010-07-12 | Driving device of scraper rotary gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201728158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912824A (en) * | 2010-07-12 | 2010-12-15 | 江苏华大离心机制造有限公司 | Device for driving scraper rotating gear |
-
2010
- 2010-07-12 CN CN2010202569620U patent/CN201728158U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912824A (en) * | 2010-07-12 | 2010-12-15 | 江苏华大离心机制造有限公司 | Device for driving scraper rotating gear |
| CN101912824B (en) * | 2010-07-12 | 2011-09-28 | 江苏华大离心机制造有限公司 | Device for driving scraper rotating gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110202 Effective date of abandoning: 20110928 |