CN202623225U - Screw rod support device of expansion dryer - Google Patents
Screw rod support device of expansion dryer Download PDFInfo
- Publication number
- CN202623225U CN202623225U CN 201220222261 CN201220222261U CN202623225U CN 202623225 U CN202623225 U CN 202623225U CN 201220222261 CN201220222261 CN 201220222261 CN 201220222261 U CN201220222261 U CN 201220222261U CN 202623225 U CN202623225 U CN 202623225U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- sealing ring
- bearing
- bracing
- ring
- 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 relates to a screw rod support device of an expansion dryer. The screw rod support device of the expansion dryer is mainly composed of a screw rod, a machine barrel, a template, a support frame, a support shaft, locknuts, a bearing, a pressing cover, an O-shaped sealing ring, a rotary sealing ring, a sealing ring and screws, wherein the support frame is connected with the template and the machine barrel through the bolts; the annular surface of the support frame is provided with a through hole; the support shaft is fixedly connected with the support frame; the bearing is sleeved on the support shaft to be locked by the locknuts; the bearing and the support shaft are embedded at the inner side of the head part of the screw rod; the sealing ring and the pressing cover are sleeved on the support shaft; the sealing ring and the screw rod are connected by using the screws to enable the pressing cover to lean against the bearing; the end face of the support frame and the end face of the sealing ring form a labyrinth type mechanical sealing structure; and the O-shaped sealing ring and the rotary sealing ring are embedded in a groove of the pressing cover. The screw rod support device of the expansion dryer, disclosed by the utility model, has the advantages of supporting the screw rod inside the machine barrel, efficiently avoiding mechanical abrasion between the screw rod and a bush of the machine barrel, obtaining a compact structure and enabling the screw rod to be easy to process and convenient to assemble and disassemble.
Description
Technical field
The utility model relates to a kind of new screw bracing or strutting arrangement, is used for the synthetic rubber expansion-exsiccation machine, has realized the screw rod dual-gripper in machine barrel inside.
Background technology
At present, the screw rod of common synthetic rubber expansion-exsiccation machine has two kinds of forms, i.e. the outer dual-gripper form of cantilevered fashion and machine barrel.Cantilevered fashion, i.e. the output shaft direct connection of an end of screw rod and reduction box, the other end is a free arm, no screw rod supporting construction, this also is the conventional supporting form of extruder class.The outer dual-gripper form of machine barrel, i.e. the output shaft direct connection of an end of screw rod and reduction box, other end screw rod main shaft stretches out outside the machine barrel, independently spring bearing case realization is arranged to the support of screw rod.
Often because charging is inhomogeneous, the material fluctuation is bigger, impels the mechanical wear between machine barrel and the screw rod bigger, has shortened the life cycle of key component for the screw rod of cantilevered fashion.The screw rod of the outer dual-gripper form of machine barrel can be avoided the problem of cantilevered fashion, but it is bigger to compare draw ratio with the screw rod of same specification, to processing technology, machining accuracy, high, the difficult processing of heat treated requirement, dismounting difficulty.
The utility model content
The utility model provides a kind of new screw bracing or strutting arrangement, has solved cantilevered fashion screw rod wear problem, has avoided the outer dual-gripper form screw rod processing difficulties of machine barrel.
For addressing the above problem; The technical scheme of the utility model is: a kind of expansion-exsiccation machine screw rod bracing or strutting arrangement; Comprise screw rod (15), machine barrel (3), template (1), bracing frame (2), back shaft (5), locking nut (7), bearing (8), gland (9), O-ring seals (10), rotating seal ring (11), sealing ring (12), screw (13); Bracing frame (2) is connected through bolt with template (1), machine barrel (3); On bracing frame (2) ring surface through hole is arranged, back shaft (5) is fixedly connected with bracing frame (2), and bearing (8) is enclosed within back shaft (5) and goes up through locking nut locking; Bearing (8) is set in the screw head inboard with back shaft (5); Bearing (8) outer ring and screw rod (15) tight fit, sealing ring (12), gland (9) are enclosed within on the back shaft (5), and sealing ring (12) is connected through screw (13) with screw rod (15) gland (9) is leaned against on the bearing (8).
Said bolster and bracing frame adopt quartet connection.
The end face of support frame as described above and the end face of sealing ring form the labyrinth type mechanical seal structure.
Said O-ring seals, rotating seal ring are embedded in the gland groove.
The uniform fan slotted hole is arranged on the support frame as described above ring surface.
The utility model advantage is: the effect of bracing frame is equivalent to the branch fluid, and the material that will from screw rod, transport is on the one hand distributed to template uniformly, is on the other hand to prevent the back shaft rotation; Screw rod is supported on machine barrel inside, and when screw rod rotated, the ball of bearing rotated; Back shaft does not rotate; Bearing outer ring is with the threaded rotation of sealing ring, and the utility model has effectively solved cantilevered fashion screw rod wear problem, and the screw rod main shaft needn't stretch out outside the machine barrel on the other hand; Avoided traditional double supporting form screw rod processing difficulties, easy accessibility.
Description of drawings
Fig. 1 the utility model expansion-exsiccation machine new screw supporting construction sketch map.
Wherein: 1. template 2. bracing frames 3. machine barrels 4. linings 5. back shafts 7. locking nuts 8. bearings 9. gland 10.O shape sealing rings 11. rotating seal rings 12. sealing rings 13. screws 14. die heads 15. screw rods.
The specific embodiment
As shown in Figure 1; Expansion-exsiccation machine screw rod bracing or strutting arrangement; Comprise screw rod 15, machine barrel 3, template 1, bracing frame 2, back shaft 5, locking nut 7, bearing 8, gland 9, O-ring seals 10, rotating seal ring 11, sealing ring 12, screw 13; Bracing frame 2 and template 1, machine barrel 3 are connected as a single entity through bolt, have guaranteed that like this bracing frame 2 axle can not take place moves.Had six shape uniform fan slotted holes on the ring surface of bracing frame 2, material flows through from fan-shaped slotted hole, is pressed in the nib in the template 1, finally through being extruded in the die head 14, flash distillation takes place, and expands, and accomplishes dry.The effect of bracing frame 2 is equivalent to the branch fluid, will distribute to template 1 uniformly from the material that screw rod 15 transports on the one hand, and the connection through the four directions prevents back shaft 5 rotations on the other hand, and screw head is supported; Bearing 8 is enclosed within on the back shaft 5 and locks through locking nut, and bearing 8 is set in the screw head inboard, bearing 8 outer rings and screw rod tight fit with back shaft 5; When screw rod 15 rotations, the ball of bearing 8 rotates, and back shaft 5 does not rotate; Bearing 8 outer rings are with sealing ring 12 threaded rotations; Thereby realized the effect of studdle 15 in machine barrel inside, effectively avoided when charging is inhomogeneous that screw rod 15 with lining 4 mechanical wear takes place; The sealing of bearing 8 adopts mechanical seal to add the sealing ring form; Sealing ring 12, gland 9 are enclosed within on the back shaft 5; Sealing ring 12 is connected through screw 13 with screw rod 15 gland 9 is leaned against on the bearing 8; O-ring seals 10, rotating seal ring 11 are embedded in gland 9 grooves; The end face of the end face of bracing frame 2 and sealing ring 12 forms labyrinth type mechanical seal structure (Fig. 1), has reduced the pressure that inner O-ring seals 10, rotating seal ring 11 (movable sealing) are located, and has improved the stability of sealing effectiveness and bearing operation; The axial location of bearing 8 leans on back shaft 5, locking nut 7, gland 9, sealing ring 12 to realize.
The above; Be merely the preferable specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is equal to replacement or changes according to the technical scheme of the utility model and inventive concept thereof in the technical scope that the present invention discloses, and all should be encompassed within the protection domain of the utility model.
Claims (5)
1. expansion-exsiccation machine screw rod bracing or strutting arrangement; It is characterized in that: comprise screw rod (15), machine barrel (3), template (1), bracing frame (2), back shaft (5), locking nut (7), bearing (8), gland (9), O-ring seals (10), rotating seal ring (11), sealing ring (12), screw (13); Bracing frame (2) is connected through bolt with template (1), machine barrel (3); On bracing frame (2) ring surface through hole is arranged; Back shaft (5) is fixedly connected with bracing frame (2); Bearing (8) is enclosed within back shaft (5) and goes up through locking nut locking, and bearing (8) is set in the screw head inboard, bearing (8) outer ring and screw rod (15) tight fit with back shaft (5); Sealing ring (12), gland (9) are enclosed within on the back shaft (5), and sealing ring (12) is connected through screw (13) with screw rod (15) gland (9) is leaned against on the bearing (8).
2. according to the said expansion-exsiccation machine screw rod of claim 1 bracing or strutting arrangement, it is characterized in that: bolster (5) adopts quartet connection with bracing frame (2).
3. according to the said expansion-exsiccation machine screw rod of claim 1 bracing or strutting arrangement, it is characterized in that: the end face of the end face of support frame as described above (2) and sealing ring (12) forms the labyrinth type mechanical seal structure.
4. according to the said expansion-exsiccation machine screw rod of claim 1 bracing or strutting arrangement, it is characterized in that: said O-ring seals (10), rotating seal ring (11) are embedded in gland (9) groove.
5. according to the said expansion-exsiccation machine screw rod of claim 1 bracing or strutting arrangement, it is characterized in that: on support frame as described above (2) ring surface uniform fan slotted hole is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220222261 CN202623225U (en) | 2012-05-17 | 2012-05-17 | Screw rod support device of expansion dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220222261 CN202623225U (en) | 2012-05-17 | 2012-05-17 | Screw rod support device of expansion dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202623225U true CN202623225U (en) | 2012-12-26 |
Family
ID=47376464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220222261 Expired - Fee Related CN202623225U (en) | 2012-05-17 | 2012-05-17 | Screw rod support device of expansion dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202623225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672936A (en) * | 2012-05-17 | 2012-09-19 | 大连橡胶塑料机械股份有限公司 | Threaded rod supporting device of expansion drying machine |
-
2012
- 2012-05-17 CN CN 201220222261 patent/CN202623225U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672936A (en) * | 2012-05-17 | 2012-09-19 | 大连橡胶塑料机械股份有限公司 | Threaded rod supporting device of expansion drying machine |
| CN102672936B (en) * | 2012-05-17 | 2014-09-10 | 大连橡胶塑料机械股份有限公司 | Threaded rod supporting device of expansion drying machine |
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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: 20121226 Termination date: 20150517 |
|
| EXPY | Termination of patent right or utility model |