CN202480209U - Spindle assembly for two-stage vacuum extruder - Google Patents
Spindle assembly for two-stage vacuum extruder Download PDFInfo
- Publication number
- CN202480209U CN202480209U CN2012201298067U CN201220129806U CN202480209U CN 202480209 U CN202480209 U CN 202480209U CN 2012201298067 U CN2012201298067 U CN 2012201298067U CN 201220129806 U CN201220129806 U CN 201220129806U CN 202480209 U CN202480209 U CN 202480209U
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- China
- Prior art keywords
- bearing
- main shaft
- spindle
- speed reducer
- gear speed
- 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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Abstract
The utility model discloses a spindle assembly for a two-stage vacuum extruder. The spindle assembly is characterized in that a planet gear speed reducer is located on a bearing support through a stopping opening, a pneumatic clutch is arranged on an input shaft of the planet gear speed reducer, and an output shaft of the plant gear speed reducer is connected with a spindle through a shaft sleeve. On the shaft sleeve, a bearing cover, a first self-aligning bearing, a push bearing, a first pressure bearing sleeve, a second self-aligning bearing, a second pressure bearing sleeve and a spindle sealing seat provided with a rubber sealing part are sequentially arranged from one end where the pneumatic clutch is arranged to one end where the spindle is positioned. An inner layer sealing ring and an outer layer sealing ring are respectively arranged between a material receiving box and the spindle sealing seat. The spindle assembly is compact in structure, high in concentricity and large in output torque, can prevent lubrication oil from being pumped into a vacuum chamber because of overlarge vacuum pressure and prevents parts of a bearing in the spindle from being damaged due to insufficient lubrication.
Description
Technical field
The utility model relates to two-stage vacuum extruder main shaft assembly.
Background technology
At present, the reductor that the vacuum extrusion equipment adopted mostly is cylindrical gear reducer, and it and material receiving box are separately fixed on the formed steel base, and speed reducer output shaft is connected transmission with main shaft through shaft coupling, and this mounting means is difficult to guarantee concentricity.Main shaft bearing is directly installed in the material receiving box in addition; It only relies on machinery and flexible sealing to isolate with the material receiving box vacuum chamber; This mounting means has the situation of oil seepage in the vacuum chamber when vacuumizing, do not cause part such as main shaft internal bearings lubricated and damage.Even constantly make-up oil guarantees to lubricate reliably, but also there is the phenomenon of uneconomical, unreasonable and excess waste.
Summary of the invention
The utility model is for avoiding above-mentioned existing in prior technology weak point; A kind of two-stage vacuum extruder main shaft assembly is provided; Make its have concurrently compact conformation, easy to assembly, good concentricity, output torque big, be convenient to install and maintenance; And vacuum chamber and bearing lubrication grease chamber are kept apart, guarantee the bunker sealing, lubricated reliable.
The utility model adopts following technical scheme for the technical solution problem:
The design feature of a kind of two-stage vacuum extruder of the utility model main shaft assembly is: planet-gear speed reducer is set; Said planet-gear speed reducer is positioned on the bearing block through seam; On the power shaft of said planet-gear speed reducer, pneumatic clutch is set, the output shaft of said planet-gear speed reducer is connected with main shaft through axle sleeve; On said axle sleeve; At one end to bearing cap that main shaft at one end sets gradually, first self-aligning bearing, thrust bearing, the first pressure-bearing cover, second self-aligning bearing, the second pressure-bearing cover, and be provided with the main shaft seal seat that rubber seal is set from pneumatic clutch institute; Internal layer sealing ring and outer sealing ring are set respectively between material receiving box and main shaft seal seat.
The design feature of a kind of two-stage vacuum extruder of the utility model main shaft assembly is that also said main shaft seal seat and bearing block are equipped with air-vent.
Compared with present technology, the utility model beneficial effect is embodied in:
1, the utility model main shaft assembly compact conformation, installation and easy to maintenance;
2, the utility model adopts planet-gear speed reducer, and planet-gear speed reducer is directly installed on the material receiving box through bearing block, and the concentricity of itself and main shaft can well be guaranteed.
Description of drawings
Fig. 1 is the utility model structural representation;
Label among the figure: 1 material receiving box; 2 screw feeders; 3 main shafts; 4 bearing blocks; 5 axle sleeves; 6 planet-gear speed reducers; 7 pneumatic clutches; 8 bearing caps; 9a first self-aligning bearing; 9b second self-aligning bearing; 10 thrust bearings; 11 first pressure-bearing covers; 12 second pressure-bearing covers; 13 main shaft seal seats; 14 rubber seals; 15 internal layer sealing rings; 16 outer sealing rings; 17 isolation wards; 18 vacuum chambers; 19 oil chambers.
The specific embodiment
Referring to Fig. 1; Two-stage vacuum extruder main shaft assembly comprises in the present embodiment: planet-gear speed reducer 6 is set; Planet-gear speed reducer 6 is positioned on the bearing block 4 through seam; Pneumatic clutch 7 is set on the power shaft of planet-gear speed reducer 6, and the output shaft of planet-gear speed reducer 6 is connected with main shaft 3 through axle sleeve 5; On axle sleeve 5; At one end at one end set gradually bearing cap 8, the first self-aligning bearing 9a, thrust bearing 10, first pressure-bearing cover, 11, the second self-aligning bearing 9b, second pressure-bearing cover 12 to 3 on main shaft from 7 of pneumatic clutches, and be provided with the main shaft seal seat 13 that rubber seal 14 is set; Internal layer sealing ring 15 and outer sealing ring 16 are set respectively between material receiving box 1 and main shaft seal seat 13; On main shaft seal seat 13 and bearing block 4, be equipped with air-vent.
In the practical implementation, material receiving box 1 is a steel-casting; The first self-aligning bearing 9a, the second self-aligning bearing 9b and thrust bearing 10 make that structural integrity is strong, rigidity is big; Can also guarantee the axiality between each bearing through the means of machining; Guarantee the main shaft smooth rotation; Thereby make beating of auger 2 on the main shaft 3 very little, increased mechanical service life greatly.
The vacuum chamber 18 at screw feeder 2 places is isolated with axle sleeve 5 outside bearing lubrication grease chambeies 19 each other in the utility model; The air-vent that is provided with on main shaft seal seat 13 and the bearing block 4 makes the same atmospheric pressure of its formed isolation ward 17 internal gas pressures; Therefore vacuum chamber 18 has been avoided crossing senior general's lubricating oil suction vacuum chamber because of vacuum pressure when vacuumizing; Also avoided material by oil pollution, thereby parts of bearings obtains good lubrication, also guarantee the cleaning of material.
Claims (2)
1. two-stage vacuum extruder main shaft assembly; It is characterized in that: planet-gear speed reducer (6) is set; Said planet-gear speed reducer (6) is positioned on the bearing block (4) through seam; Pneumatic clutch (7) is set on the power shaft of said planet-gear speed reducer (6), and the output shaft of said planet-gear speed reducer (6) is connected with main shaft (3) through axle sleeve (5); On said axle sleeve (5); At one end to main shaft (3) bearing cap that at one end sets gradually (8), first self-aligning bearing (9a), thrust bearing (10), the first pressure-bearing cover (11), second self-aligning bearing (9b), the second pressure-bearing cover (12), and be provided with the main shaft seal seat (13) that rubber seal (14) is set from pneumatic clutch (7) institute; Internal layer sealing ring (15) and outer sealing ring (16) are set respectively between material receiving box (1) and main shaft seal seat (13).
2. two-stage vacuum extruder main shaft assembly as claimed in claim 1 is characterized in that said main shaft seal seat (13) and bearing block (4) are equipped with air-vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201298067U CN202480209U (en) | 2012-03-30 | 2012-03-30 | Spindle assembly for two-stage vacuum extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201298067U CN202480209U (en) | 2012-03-30 | 2012-03-30 | Spindle assembly for two-stage vacuum extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202480209U true CN202480209U (en) | 2012-10-10 |
Family
ID=46954666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201298067U Expired - Lifetime CN202480209U (en) | 2012-03-30 | 2012-03-30 | Spindle assembly for two-stage vacuum extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202480209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465353A (en) * | 2013-09-24 | 2013-12-25 | 乐山市五通桥川华机械厂 | Energy-saving self-control brickmaking equipment |
-
2012
- 2012-03-30 CN CN2012201298067U patent/CN202480209U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465353A (en) * | 2013-09-24 | 2013-12-25 | 乐山市五通桥川华机械厂 | Energy-saving self-control brickmaking equipment |
| CN103465353B (en) * | 2013-09-24 | 2015-07-08 | 乐山市五通桥川华机械厂 | Energy-saving self-control brickmaking equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |