CN201792422U - Rotary sealing mechanism for mixing drum of concrete mixing carrier - Google Patents
Rotary sealing mechanism for mixing drum of concrete mixing carrier Download PDFInfo
- Publication number
- CN201792422U CN201792422U CN2010205020225U CN201020502022U CN201792422U CN 201792422 U CN201792422 U CN 201792422U CN 2010205020225 U CN2010205020225 U CN 2010205020225U CN 201020502022 U CN201020502022 U CN 201020502022U CN 201792422 U CN201792422 U CN 201792422U
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- Prior art keywords
- mixing drum
- band
- mixing
- seal chamber
- rotary sealing
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- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The utility model relates to a rotary sealing mechanism for a mixing drum of a concrete mixing carrier. The rotary sealing mechanism comprises the mixing drum (1); a rotary end (3) with a feed-discharge hole is arranged on the feed-discharge port of the mixing drum (1) and rotates synchronously with the mixing drum (1); the mixing drum (1) further comprises a fixed end (4); the rotary end (3) is provided with a segment of internal transitional ring (3-1); the fixed end (4) is provided with a segment of external transitional ring (4-1); and a sealing cavity, in which more than one layer of sealing belts (5) is arranged, is formed between the internal transitional ring (3-1) and the external transitional ring (4-1). As the sealing cavity is formed between the internal transitional ring (3-1) and the external transitional ring (4-1), and more than one layer of sealing belts (5) is arranged in the sealing cavity, reliable rotary sealing is realized.
Description
(1), technical field the utility model relates to a kind of rotary sealing mechanism of concrete mixing and transporting car mixing drum.
(2), background technology is owing to receive less concern, the rotary sealing technology of huge revolving equipment does not have too big development in recent years.Existing rotary sealing technology is difficult to adapt to the port rotary sealing of mixing drum under rotary state of concrete delivery truck.
(3), utility model content the utility model aims to provide a kind of rotary sealing mechanism of concrete mixing and transporting car mixing drum, technical problem to be solved is by reliable rotary sealing, to realize that mixing drum is connected with the revolution of input and output material end.
The technical scheme that the utility model adopted is as follows:
A kind of rotary sealing mechanism of concrete mixing and transporting car mixing drum comprises mixing drum, it is characterized in that: mixing drum input and output material port is provided with that rotate, that the have the input and output material hole synchronously round end of mixing drum; Also comprise stiff end; Described round end has transition rings in a section, and described stiff end has one section outer transition rings, has formed seal chamber between interior transition rings and the outer transition rings, is provided with a heavy above band in the sealing cavity.
In seal chamber, be provided with expandable under water-filling or inflated condition, as to be positioned at band outside annular pressure band; Annular pressure band after the expansion is full of the seal chamber outside the band.Perhaps, described band has water-filling or the gas-filled cavity that band is expanded; Band after the expansion is full of described seal chamber.
On stiff end, offer cannelure, the sealing strip that contacts with interior transition rings is installed in cannelure; This cannelure is positioned at the front end of seal chamber.
Good effect of the present utility model is:
(1), formed seal chamber between interior transition rings and the outer transition rings, be provided with a heavy above resealing band in the sealing cavity.Realized reliable rotary sealing.
(2), charge in the seal chamber, realized: the first, the tight seal between band and the interior transition rings by water under high pressure (gas); The second, sealed the seal chamber outside the band; Three, make that the running stability of mixing drum is better.
(3), on stiff end, offer cannelure, the sealing strip that contacts with interior transition rings is installed in cannelure.When cleaning seal chamber, sealing strip plays and prevents that silt from entering into the revolution supporting mechanism and going, and pollutes the effect of revolution supporting mechanism and lubricant grease, improves the service life of slew gear.
(4), description of drawings Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
(5), the specific embodiment further specifies the utility model below in conjunction with drawings and Examples.
The utility model comprises the mixing drum 1 that is used to be installed on the car body and has rotary drive mechanism, and wherein the input and output material port of mixing drum 1 is positioned at the rear end of mixing drum 1, and the rotary drive mechanism of mixing drum 1 is positioned at the front end of mixing drum 1.
Mixing drum 1 input and output material port is provided with that rotate, that the have the input and output material hole synchronously round end 3 of mixing drum 1; Also comprise the stiff end 4 of bringing discharge opening into, the input and output material hole of stiff end 4 and the input and output material hole of round end 3 communicate.
Described round end 3 has transition rings 3-1 in a section, and described stiff end 4 has one section outer transition rings 4-1, has formed seal chamber between interior transition rings 3-1 and the outer transition rings 4-1, is provided with triple seal band 5 in the sealing cavity.
Embodiment one
As shown in Figure 1, wherein a kind of concrete rotary sealing mode is: described band 5 has water-filling or the gas-filled cavity that band 5 is expanded; Band 5 after the expansion is full of described seal chamber.
Embodiment two
As shown in Figure 2, another kind of concrete rotary sealing mode is: be provided with expandable under water-filling or inflated condition, as to be positioned at band 5 outsides annular pressure band 6 in seal chamber.Annular pressure band 6 after the expansion is full of the seal chamber outside the band 5.
Described water-filling or inflation mode are: expander connects water under high pressure (gas) source by pipeline.
As Fig. 1,2, on stiff end 4, offer cannelure, the sealing strip 2 that contacts with interior transition rings 3-1 is installed in cannelure; This cannelure is positioned at the front end of seal chamber.The effect of sealing strip 2 is when cleaning seal chamber, to prevent that silt from entering into the revolution supporting mechanism and going.
Claims (4)
1. the rotary sealing mechanism of a concrete mixing and transporting car mixing drum comprises mixing drum (1), it is characterized in that: mixing drum (1) input and output material port is provided with that rotate, that the have the input and output material hole synchronously round end (3) of mixing drum (1); Also comprise stiff end (4); Described round end (3) has transition rings in a section (3-1), described stiff end (4) has one section outer transition rings (4-1), form seal chamber between interior transition rings (3-1) and the outer transition rings (4-1), be provided with a heavy above band (5) in the sealing cavity.
2. the rotary sealing mechanism of concrete mixing and transporting car mixing drum as claimed in claim 1 is characterized in that: be provided with expandable under water-filling or inflated condition, as to be positioned at band (5) outside annular pressure band (6) in seal chamber; Annular pressure band (6) after the expansion is full of the seal chamber outside the band (5).
3. the rotary sealing mechanism of concrete mixing and transporting car mixing drum as claimed in claim 1 is characterized in that: described band (5) has water-filling or the gas-filled cavity that band (5) is expanded; Band after the expansion (5) is full of described seal chamber.
4. as the rotary sealing mechanism of claim 1 or 2 or 3 described concrete mixing and transporting car mixing drums, it is characterized in that: on stiff end (4), offer cannelure, the sealing strip (2) that contacts with interior transition rings (3-1) is installed in cannelure; This cannelure is positioned at the front end of seal chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205020225U CN201792422U (en) | 2010-08-24 | 2010-08-24 | Rotary sealing mechanism for mixing drum of concrete mixing carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205020225U CN201792422U (en) | 2010-08-24 | 2010-08-24 | Rotary sealing mechanism for mixing drum of concrete mixing carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201792422U true CN201792422U (en) | 2011-04-13 |
Family
ID=43847343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205020225U Expired - Lifetime CN201792422U (en) | 2010-08-24 | 2010-08-24 | Rotary sealing mechanism for mixing drum of concrete mixing carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201792422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2634044A4 (en) * | 2010-10-30 | 2018-01-31 | Yantai Shenglida Engineering Technology Co. Ltd. | A concrete mixing-and-transport truck with rotary sealed feeding/discharging opening of stirring cylinder |
-
2010
- 2010-08-24 CN CN2010205020225U patent/CN201792422U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2634044A4 (en) * | 2010-10-30 | 2018-01-31 | Yantai Shenglida Engineering Technology Co. Ltd. | A concrete mixing-and-transport truck with rotary sealed feeding/discharging opening of stirring cylinder |
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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: 20110413 |