CN202100714U - Sealing assembly of pre-grinding screw of buffer bin - Google Patents
Sealing assembly of pre-grinding screw of buffer bin Download PDFInfo
- Publication number
- CN202100714U CN202100714U CN2011202340495U CN201120234049U CN202100714U CN 202100714 U CN202100714 U CN 202100714U CN 2011202340495 U CN2011202340495 U CN 2011202340495U CN 201120234049 U CN201120234049 U CN 201120234049U CN 202100714 U CN202100714 U CN 202100714U
- Authority
- CN
- China
- Prior art keywords
- sealing assembly
- black box
- outer sleeve
- sealing
- buffer bin
- 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 sealing assembly of a pre-grinding screw of a buffer bin, which mainly solves the problem that the existing pre-grinding screw of the buffer bin is apt to cause bearing damage and spindle head abrasion due to the fact that a bearing is not stable in location, and abrasion of a sealing device causes material leakage. The sealing assembly is characterized in that the middle of a connection seat (8) is vertically hollow, the inner sides of a front half portion and a back half portion of the connection seat are arc faces, non-stick coatings (10) are coated on the arc faces, the connection seat (8) is connected with a sealing assembly outer sleeve (5) through a bolt, a sealing assembly (4) and a framework sealing ring (7) are arranged in a sealing cavity formed by the sealing assembly outer sleeve (5) and the screw, a leakage proof outer sleeve (2) is arranged on the left outer portion of the sealing assembly outer sleeve (5), the leakage proof outer sleeve (2) is fixed on a steel plate (1) through a bolt, and a rubber sealing ring (3) is arranged between the leakage proof outer sleeve (2) and the sealing assembly outer sleeve (5). The sealing assembly of the pre-grinding screw of the buffer bin has the advantages that the bearing and the spindle head are not easy to damage, and the sealing assembly is good in sealing performance.
Description
Technical field
The utility model relates to a kind of oil-refining chemical field polyacrylic amide process units, specifically a kind of buffer bin beforehand research mill screw rod seal assembly.
Background technique
Buffer bin beforehand research mill screw rod in Petrochemical Enterprises polyacrylic amide workshop is owing to realize counter-rotating, long-term high loaded process in addition at present; Therefore, original bearing orientation type can cause the bearing location unstable, when screw rod reverses, can make the bearing location loosening; Long-time running can cause damage of bearings; Spindle nose wearing and tearing even fracture, existing on the other hand seal arrangement has a strong impact on production because long-time wearing and tearing can cause material from leakage.
Summary of the invention
Cause damage of bearings, spindle nose wearing and tearing and seal arrangement wearing and tearing can cause the deficiency of material from leakage owing to the bearing location is unstable in order to overcome existing buffer bin beforehand research mill screw rod; The utility model provides a kind of buffer bin beforehand research mill screw rod seal assembly, and this buffer bin beforehand research mill screw rod seal assembly has bearing and spindle nose is not fragile, the characteristics of good seal performance.
The technological scheme of the utility model is: a kind of buffer bin beforehand research mill screw rod seal assembly; Comprise the steel plate, the bearing support that are welded on the spindle nose end face; There is connecting base in described bearing support left side, and described connecting base middle part is hollow up and down, and two halves inboard in front and back is an arc surface; And scribble non-sticking lining on the arc surface; Described connecting base is positioned at its inner black box overcoat through the screw connection, is provided with black box and backbone sealing ring in the Seal cage that described black box overcoat and screw rod form, and described black box overcoat left hand external is provided with outer leakage-proof cap; Described outer leakage-proof cap passes through screw on steel plate, and between outer leakage-proof cap and the black box overcoat rubber seal is arranged.
The utlity model has following beneficial effect: owing to take such scheme; Between bearing support and the hopper wallboard connecting base is installed, the connecting base middle part is hollow up and down, forms leakage grooves; Unnecessary material can flow out thus; Black box and backbone sealing ring form double seal to the cavity in the black box overcoat, simultaneously, in the Seal cage between outer leakage-proof cap and the black box overcoat rubber seal are arranged.Like this, outer leakage-proof cap and black box overcoat form relative movement, make material directly not flow out along the screw axis surface; Must pass through from the gap of outer leakage-proof cap and black box overcoat; Through the gap of rubber ring, could arrive the gap of black box and axle again, flow out through backbone sealing ring; Therefore, improved sealing effect and sealing time.
Description of drawings:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the sectional view along A-A among Fig. 1.
1-steel plate among the figure, 2-outer leakage-proof cap, 3-rubber seal, 4-black box, 5-black box overcoat, 6-back-up ring, 7-backbone sealing ring, 8-connecting base, 9-screw, 10-non-sticking lining, 11-bearing support, 12-bearing.
Embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
By Fig. 1 and shown in Figure 2, a kind of buffer bin beforehand research mill screw rod seal assembly comprises the steel plate 1, the bearing support 11 that are welded on the spindle nose end face, and steel plate 1 is circular; Be welded on the spindle nose end face, there is connecting base 8 in described bearing support 11 left sides, and connecting base 8 is connected with hopper wallboard and bearing support 11 through the fixed plate on it; There is bearing 12 bearing support 11 inside, and described connecting base 8 middle parts are hollow up and down, and two halves inboard in front and back is an arc surface; And scribble non-sticking lining 10 on the arc surface, just form leakage grooves at connecting base 8 middle parts like this, make and work as seal failure; When having material to flow out, material can be flowed out by leakage grooves and flow away downwards, has avoided bearing to damage because of material flows into; The two halves inboard scribbles non-sticking lining 10 before and after connecting base 8 middle parts, further makes the material that leaks to dirty, it is unlikely flows in the bearing; There is black box overcoat 5 described connecting base 8 inside; And the two is through being threaded, and is provided with black box 4 and backbone sealing ring 7 in the Seal cage that described black box overcoat 5 and screw rod form, and described black box 4 is staggered and is formed by four trapezoidal ptfe rings that gather; Backbone sealing ring 7 right sides are spacing by back-up ring 6; Described black box overcoat 5 left hand external are provided with outer leakage-proof cap 2, and described outer leakage-proof cap 2 on steel plate 1, forms cavity between outer leakage-proof cap 2 and the black box overcoat 5 through screw; Rubber seal is arranged in the cavity, and rubber seal 3 is an O type circle.
This structure of sealing assembly, outer leakage-proof cap 2 are connected with steel plate 1 usefulness screw and are welded in the spindle nose end face, form and 5 relative movement of black box overcoat; Material just can directly not flow out in the gap of axle and sealing like this; It need pass through in the gap of outer leakage-proof cap 2 and black box overcoat 5, again through the gap of rubber seal 3, could arrive the gap of black box 4 and axle; And then, sealing effect and sealing time have been improved through backbone sealing ring 7 outflows.
Claims (2)
1. the screw rod seal assembly is ground in a buffer bin beforehand research; Comprise the steel plate (1), the bearing support (11) that are welded on the spindle nose end face; There is connecting base (8) in described bearing support (11) left side, it is characterized in that: described connecting base (8) middle part is hollow up and down, and two halves inboard in front and back is an arc surface; And scribble non-sticking lining (10) on the arc surface; Described connecting base (8) is positioned at its inner black box overcoat (5) through the screw connection, is provided with black box (4) and backbone sealing ring (7) in the Seal cage that described black box overcoat (5) and screw rod form, and described black box overcoat (5) left hand external is provided with outer leakage-proof cap (2); Described outer leakage-proof cap (2) passes through screw on steel plate (1), and between outer leakage-proof cap (2) and the black box overcoat (5) rubber seal (3) is arranged.
2. buffer bin beforehand research according to claim 1 mill screw rod seal assembly is characterized in that: described black box (4) is staggered and is formed by four trapezoidal ptfe rings that gather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202340495U CN202100714U (en) | 2011-07-05 | 2011-07-05 | Sealing assembly of pre-grinding screw of buffer bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202340495U CN202100714U (en) | 2011-07-05 | 2011-07-05 | Sealing assembly of pre-grinding screw of buffer bin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100714U true CN202100714U (en) | 2012-01-04 |
Family
ID=45386728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202340495U Expired - Fee Related CN202100714U (en) | 2011-07-05 | 2011-07-05 | Sealing assembly of pre-grinding screw of buffer bin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939612A (en) * | 2014-01-14 | 2014-07-23 | 杭州杭锅通用设备有限公司 | Shaft-end sealing device for flue gas damper door |
-
2011
- 2011-07-05 CN CN2011202340495U patent/CN202100714U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939612A (en) * | 2014-01-14 | 2014-07-23 | 杭州杭锅通用设备有限公司 | Shaft-end sealing device for flue gas damper door |
| CN103939612B (en) * | 2014-01-14 | 2015-12-09 | 杭州杭锅通用设备有限公司 | Gas baffle door shaft end seal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Daqing City Lianqin Equipment Manufacturing and Constructing Co., Ltd. Assignor: Ding Bochen Contract record no.: 2013230000632 Denomination of utility model: Sealing assembly of pre-grinding screw of buffer bin Granted publication date: 20120104 License type: Exclusive License Record date: 20130428 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20170705 |