CN209451767U - Labyrinth type Anti-powder-leakage making-up air device - Google Patents
Labyrinth type Anti-powder-leakage making-up air device Download PDFInfo
- Publication number
- CN209451767U CN209451767U CN201822201909.XU CN201822201909U CN209451767U CN 209451767 U CN209451767 U CN 209451767U CN 201822201909 U CN201822201909 U CN 201822201909U CN 209451767 U CN209451767 U CN 209451767U
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- Prior art keywords
- terminal pad
- axle sleeve
- air
- wall
- locking ring
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Abstract
The utility model relates to a kind of labyrinth type Anti-powder-leakage making-up air devices, including terminal pad, axle sleeve, locking ring and packing, axle sleeve is set on main shaft, terminal pad is set in the outside of axle sleeve, locking ring is set in the outside of axle sleeve and is connected with the rear end of terminal pad, form annular chamber, in the packing setting annular chamber, the groove of spiral groove and annular is provided in the front inner wall of terminal pad, the front inner wall and axle sleeve of terminal pad form the air drain of spiral air flue and annular after fitting, it is connected inside the front end of air flue and mixing drum, the rear end of air flue is connected with air drain, air inlet gas circuit is provided in the front end side wall of terminal pad, one end of air inlet gas circuit is connected with air drain, the other end of air inlet gas circuit is connected with external gas source.It prevents the material in mixing drum to enter the inside of bearing block from the fit-up gap between main shaft and mixing drum side wall, ensure that bearing can work well, and extend the service life of bearing.
Description
[technical field]
The utility model relates to the technical fields of mixing machine, and in particular to a kind of labyrinth type Anti-powder-leakage making-up air device.
[background technique]
In mixing machine, main shaft is arranged in mixing drum, is respectively arranged with bearing block and bearing outside the both ends of mixing drum,
The both ends of main shaft are stretched out the side wall of mixing drum and are protruded into bearing.Due to certainly existing one between main shaft and the side wall of mixing drum
Fixed fit-up gap, so the material in mixing drum can enter in bearing block from the fit-up gap in mixing, influence bearing
Operating and service life.
[utility model content]
To solve the above problems, the purpose of this utility model is to provide a kind of materials that can be prevented in mixing drum from assembly
Gap enters the labyrinth type Anti-powder-leakage making-up air device in bearing block.
To achieve the above object, the technical solution that the utility model is taken are as follows: labyrinth type Anti-powder-leakage making-up air device, including even
Disk, axle sleeve, locking ring and packing are connect, the axle sleeve is set on main shaft, and the terminal pad is set in the outside of axle sleeve, the lock
Determine ring set to be located at the outside of axle sleeve and be connected with the rear end of terminal pad, forms annular between terminal pad, axle sleeve and locking ring
Chamber, the packing are arranged in annular chamber, and inner wall and the axle sleeve of packing fit, and are provided with spiral shell in the front inner wall of the terminal pad
Revolve the groove of shape and the groove of annular, the front inner wall of terminal pad and axle sleeve form spiral air flue and annular after fitting
Air drain is connected inside the front end of air flue and mixing drum, and the rear end of air flue is connected with air drain, sets in the front end side wall of terminal pad
It is equipped with air inlet gas circuit, one end of air inlet gas circuit is connected with air drain, and the other end of air inlet gas circuit is connected with external gas source.
Labyrinth type Anti-powder-leakage making-up air device in the utility model is further arranged to: in the rear end inner wall of the terminal pad
It is provided with internal screw thread, external screw thread is provided in the outer wall of the locking ring, is connected between terminal pad and locking ring by screw thread.
Labyrinth type Anti-powder-leakage making-up air device in the utility model is further arranged to: the terminal pad, axle sleeve, locking ring
The inside of bearing block is set with packing, and terminal pad is connected with the side wall of mixing drum.
Compared with prior art, the utility model has the following beneficial effects: above-mentioned labyrinth type Anti-powder-leakage making-up air device,
It is in such a way that packing and tonifying Qi combine, prevent the material in mixing drum is from the dress between main shaft and mixing drum side wall
The inside that bearing block is entered with gap ensure that bearing can work well, and extend the service life of bearing.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram that the utility model does not include axle sleeve.
Fig. 2 is the mounting structure schematic diagram of the utility model.
In figure: 1, terminal pad, 2, axle sleeve, 3, locking ring, 4, packing, 5, main shaft, 6, air flue, 7, air drain, 8, mixing drum, 9,
Air inlet gas circuit, 10, bearing block.
[specific embodiment]
Labyrinth type Anti-powder-leakage making-up air device described in the utility model is made below by specific embodiment further detailed
Thin description.
As shown in Figure 1 and Figure 2, labyrinth type Anti-powder-leakage making-up air device, including terminal pad 1, axle sleeve 2, locking ring 3 and packing 4,
The axle sleeve 2 is set on main shaft 5, and the terminal pad 1 is set in the outside of axle sleeve 2, and the locking ring 3 is set in axle sleeve 2
It is external and be connected with the rear end of terminal pad 1, internal screw thread, the locking ring 3 are provided in the rear end inner wall of the terminal pad 1
Outer wall in be provided with external screw thread, be connected between terminal pad 1 and locking ring 3 by screw thread.Terminal pad 1, axle sleeve 2 and locking ring
Annular chamber is formed between 3, the packing 4 is arranged in annular chamber, and inner wall and the axle sleeve 2 of packing 4 fit, the terminal pad 1
The groove of spiral groove and annular is provided in front inner wall, the front inner wall of terminal pad 1 is formed after fitting with axle sleeve 2
The air drain 7 of spiral air flue 6 and annular is connected inside the front end of air flue 6 and mixing drum 8, the rear end of air flue 6 and air drain 7
It is connected, air inlet gas circuit 9 is provided in the front end side wall of terminal pad 1, one end of air inlet gas circuit 9 is connected with air drain 7, air inlet gas
The other end on road 9 is connected with external gas source.The terminal pad 1, axle sleeve 2, locking ring 3 and packing 4 are arranged in bearing block 10
Inside, and terminal pad 1 is connected with the side wall of mixing drum 8.
The working principle of the utility model is: above-mentioned labyrinth type Anti-powder-leakage making-up air device, in use, passing through external gas
Source supplies air inlet gas circuit 9, after gas enters air drain 7, is gradually blown into inside mixing drum 8 from mazy air flue 6, to prevent
Material in mixing drum 8 enters in air flue 6, in addition, it uses packing 4 to further realize partition, so that the material in mixing drum 8
The inside that bearing block 10 cannot be entered from the fit-up gap between 8 side wall of main shaft 5 and mixing drum, ensure that bearing can operate just
Often, and the service life of bearing is extended.
The principles and effects of the invention, and the implementation that part uses only is illustrated in the above embodiments
Example, rather than limits the present invention；It should be pointed out that for those of ordinary skill in the art, not departing from this reality
Under the premise of with novel concept, various modifications and improvements can be made, these belong to the protection model of the utility model
It encloses.
Claims (3)
1. labyrinth type Anti-powder-leakage making-up air device, including terminal pad, axle sleeve, locking ring and packing, it is characterised in that: the axle sleeve set
It is located on main shaft, the terminal pad is set in the outside of axle sleeve, and the locking ring is set in the outside of axle sleeve and and terminal pad
Rear end be connected, form annular chamber between terminal pad, axle sleeve and locking ring, in the packing setting annular chamber, packing it is interior
Wall fits with axle sleeve, and the groove of spiral groove and annular is provided in the front inner wall of the terminal pad, terminal pad
Front inner wall and axle sleeve form the air drain of spiral air flue and annular after fitting, be connected inside the front end of air flue and mixing drum
Logical, the rear end of air flue is connected with air drain, and air inlet gas circuit, one end of air inlet gas circuit and gas are provided in the front end side wall of terminal pad
Slot is connected, and the other end of air inlet gas circuit is connected with external gas source.
2. labyrinth type Anti-powder-leakage making-up air device as described in claim 1, it is characterised in that: in the rear end inner wall of the terminal pad
It is provided with internal screw thread, external screw thread is provided in the outer wall of the locking ring, is connected between terminal pad and locking ring by screw thread.
3. labyrinth type Anti-powder-leakage making-up air device as claimed in claim 1 or 2, it is characterised in that: the terminal pad, axle sleeve, lock
Determine ring and the inside of bearing block is arranged in packing, and terminal pad is connected with the side wall of mixing drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822201909.XU CN209451767U (en) | 2018-12-26 | 2018-12-26 | Labyrinth type Anti-powder-leakage making-up air device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822201909.XU CN209451767U (en) | 2018-12-26 | 2018-12-26 | Labyrinth type Anti-powder-leakage making-up air device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209451767U true CN209451767U (en) | 2019-10-01 |
Family
ID=68042232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822201909.XU Active CN209451767U (en) | 2018-12-26 | 2018-12-26 | Labyrinth type Anti-powder-leakage making-up air device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209451767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109464961A (en) * | 2018-12-26 | 2019-03-15 | 张家港市繁昌机械有限公司 | Labyrinth type Anti-powder-leakage making-up air device |
-
2018
- 2018-12-26 CN CN201822201909.XU patent/CN209451767U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109464961A (en) * | 2018-12-26 | 2019-03-15 | 张家港市繁昌机械有限公司 | Labyrinth type Anti-powder-leakage making-up air device |
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