CN101596746B - Sealing structure of shaft end of horizontal concrete mixer - Google Patents
Sealing structure of shaft end of horizontal concrete mixer Download PDFInfo
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- CN101596746B CN101596746B CN2009103049288A CN200910304928A CN101596746B CN 101596746 B CN101596746 B CN 101596746B CN 2009103049288 A CN2009103049288 A CN 2009103049288A CN 200910304928 A CN200910304928 A CN 200910304928A CN 101596746 B CN101596746 B CN 101596746B
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- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
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Abstract
The invention discloses a sealing structure of a shaft end of a horizontal concrete mixer, which comprises a main machine shaft(1) and a mixer shell(2), a shaft sleeve(2) is fixed on an outer ring of the main machine shaft(1), a spiral body(8) is fixed on an outer ring of the shaft sleeve(2), wherein the spiral body(8) is sleeved with a sealing outer sleeve(6) with an L-shaped cross section, a spiral channel is formed between one side of the sealing outer sleeve with the L-shaped cross section and the spiral body(8), and the other side of the sealing outer sleeve is attached to the outer wall of the mixer shell(2); the sealing outer sleeve(6) is provided with an oil inlet(5), and the outer end face of the sealing outer sleeve(6) is provided with an end cover(3); and the end cover(3) is sleeved on the spiral body(8) and seals an outer end opening of the spiral channel. The sealing structure has the advantages of simple overall structure, convenient assembly and disassembly and long service life.
Description
Technical field
The invention belongs to the concrete mixer apparatus field, relate to a kind of sealing structure of shaft end of horizontal concrete mixer concretely.
Background technology
At present the main frame sealing structure of shaft end of mixer mainly contains: the 1. hermetically-sealed construction that forms of labyrinth, floating ring, 2. the hermetically-sealed construction that hermetic seal, moulding filler, floating ring form, 3. so the hermetically-sealed construction that forms of moulding filler, floating ring is the mixer sealing means of floating-ring seal for using always.Traditional hermetically-sealed construction, especially floating-ring seal exist following weak point:
1, O shape circle adjustment amount is little in the floating-ring seal, is no more than 2mm;
2, it is extremely abominable that O shape is enclosed mixer working environment of living in, and the mortar of fine particle is arranged;
3, the not alkaline-resisting liquid of floating ring O shape circle material, in case the seal form of floating-ring seal front is damaged, floating-ring seal is with very fast damage;
4, the floating ring machining accuracy is very high, and the circumgyration linear velocity during use is higher, and installation fit dimension precision is high;
5, part moulding sealing packing pressure is difficult to determine, maintenance is difficult for, and it is excessive or do not have grease and enter lubricated situation to maintain the improper grease that then occurs.
As above-mentioned be the selection difficulty of basis combination seal form with the floating-ring seal, from the practical process of reality and two angles of installation and maintenance, be not easy to take into account advantage in many ways.
Summary of the invention
The object of the present invention is to provide a kind of installation and maintenance easy, effectively improved agitator shaft end seal, and can improve the hermetically-sealed construction sealing structure of shaft end of horizontal concrete mixer in service life.
Technical scheme of the present invention is as follows:
A kind of sealing structure of shaft end of horizontal concrete mixer, comprise boss rod, the mixer housing, outer ring at described boss rod is fixed with axle sleeve, the outer ring of this axle sleeve is fixed with conveyor screw, this conveyor screw is set with the hermetically sealed case of cross section for " L " shape, and this cross section wherein forms helical duct on one side and between the described conveyor screw for the hermetically sealed case of " L " shape, another side fits on the outer wall of described mixer housing, on described hermetically sealed case, have fuel feed hole, the hermetically sealed case outer face is provided with end cap, and this end cap is sleeved on the described conveyor screw and with the outer end opening sealing of described helical duct; Described mixer inner walls is fixed with first wear-resistant block, the below of this first wear-resistant block is provided with second wear-resistant block, form the labyrinth sealing body between described first wear-resistant block and second wear-resistant block, fit in the inner surface of wherein said second wear-resistant block and described boss rod outer ring, the end face of described second wear-resistant block and described spirochetal inner face applying and with the inner closure of openings of described helical duct.
Adopt the working mechanism of above-mentioned hermetically-sealed construction to be:
1), first wearing piece, second wear-resistant block are combined to form labyrinth seal, concrete is carried out the screening first time, thick gravel is blocked in outside the labyrinth channel, in addition, abrasive dust also can be carried out to the mortar of the band gravel that enters runner in the labyrinth, make the fine particle that enters littler, slicker and more sly, reduce wearing and tearing;
2), second wearing piece, hermetically sealed case, conveyor screw are formed oil sump, under the situation of injecting grease, form by " oil sealing ", oil surface tension can partly stop entering of mortar, in addition, parts of lubricating oil and mortar melt mutually and form thick shape body, can stop entering of mortar, thick shape body can not solidify yet, and has removed the second particle wearing and tearing that mortar solidifies formation;
3), spirochetal helicla flute, hermetically sealed case form helical duct, grease enters helical duct via lubricating cup, conveyor screw is by the main shaft driven rotary, form extruding force grease is pressed into above-mentioned oil sump, the surface tension of grease can stop that mortar enters, and the inside convection current of grease also can stop entering of mortar;
4), sealing ring distortion fits on end cap, the conveyor screw backstage terrace, forms shaped packing seal, guarantees that the one-way flow of grease in the helicla flute also forms certain back pressure, shaped packing seal also is the sealing that prevents that together mortar from revealing.
The present invention has following new feature: 1. under this working environment, by a helical duct, when axle rotated, the grease in the helicla flute was transferred in mixer, makes grease to the mortar convection current that enters, and constantly the mortar of desiring to enter is extruded.2. general structure is simple, easy installation and removal.
The inwall of described end cap is provided with sealing ring.
On the described fuel feed hole lubricating cup is housed.
Beneficial effect: general structure of the present invention is simple, easy installation and removal, under this working environment, by a helical duct, when axle rotated, the grease in the helicla flute was transferred in mixer, make grease to the mortar convection current that enters, constantly the mortar of desiring to enter is extruded, when guaranteeing sealing effectiveness, the service life of also having improved hermetically-sealed construction.
Description of drawings
The present invention will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Embodiment: as shown in Figure 1: a kind of sealing structure of shaft end of horizontal concrete mixer, comprise boss rod 1, mixer housing 10, be fixed with axle sleeve 2 in the outer ring of described boss rod 1, the outer ring of this axle sleeve 2 is fixed with conveyor screw 8, this conveyor screw 8 is set with cross section and wherein forms helical duct on one side and between the described conveyor screw 8 for the hermetically sealed case 6 of " L " shape and this cross section for the hermetically sealed case of " L " shape, another side fits on the outer wall of described mixer housing 10, on described hermetically sealed case 6, have fuel feed hole 5, hermetically sealed case 6 outer faces are provided with end cap 3, and this end cap 3 is sleeved on the described conveyor screw 8 and with the outer end opening sealing of described helical duct; Described mixer housing 2 inwalls are fixed with the first wear-resistant block 7a, the below of this first wear-resistant block 7a is provided with the second wear-resistant block 7b, form the labyrinth sealing body between the described first wear-resistant block 7a and the second wear-resistant block 7b, fit in the inner surface of the wherein said second wear-resistant block 7b and described boss rod 1 outer ring, the inner face applying of the end face of the described second wear-resistant block 7b and described conveyor screw 8 and with the inner closure of openings of described helical duct.The inwall of described end cap 3 is provided with sealing ring 4.On the described fuel feed hole 5 lubricating cup 9 is housed.
The erection sequence of this hermetically-sealed construction is: at first axle sleeve 2 is fixed on the boss rod axle 1, then conveyor screw 8 is fixed on the axle sleeve 2, refilling hermetically sealed case 6 is fixed on the mixer outer wall, it is even with conveyor screw 8 circumferential clearances to adjust hermetically sealed case 6, sealing ring 4 is packed on the end cap 3, load onto end cap, load onto the second wearing plate 7b at inwall then, refill the second wearing plate 7a.
Claims (3)
1. sealing structure of shaft end of horizontal concrete mixer, comprise boss rod (1), mixer housing (10), it is characterized in that: be fixed with axle sleeve (2) in the outer ring of described boss rod (1), the outer ring of this axle sleeve (2) is fixed with conveyor screw (8), this conveyor screw (8) is set with the hermetically sealed case (6) of cross section for " L " shape, and this cross section wherein forms helical duct on one side and between the described conveyor screw (8) for the hermetically sealed case of " L " shape, another side fits on the outer wall of described mixer housing (10), on described hermetically sealed case (6), have fuel feed hole (5), hermetically sealed case (6) outer face is provided with end cap (3), and this end cap (3) is sleeved on that described conveyor screw (8) is gone up and with the outer end opening sealing of described helical duct; Described mixer housing (10) inwall is fixed with first wear-resistant block (7a), the below of this first wear-resistant block (7a) is provided with second wear-resistant block (7b), form the labyrinth sealing body between described first wear-resistant block (7a) and second wear-resistant block (7b), fit in the inner surface of wherein said second wear-resistant block (7b) and described boss rod (1) outer ring, the inner face applying of the end face of described second wear-resistant block (7b) and described conveyor screw (8) and with the inner closure of openings of described helical duct.
2. a kind of sealing structure of shaft end of horizontal concrete mixer according to claim 1 is characterized in that: the inwall of described end cap (3) is provided with sealing ring (4).
3. a kind of sealing structure of shaft end of horizontal concrete mixer according to claim 1 is characterized in that: lubricating cup (9) is housed on the described fuel feed hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103049288A CN101596746B (en) | 2009-07-29 | 2009-07-29 | Sealing structure of shaft end of horizontal concrete mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103049288A CN101596746B (en) | 2009-07-29 | 2009-07-29 | Sealing structure of shaft end of horizontal concrete mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101596746A CN101596746A (en) | 2009-12-09 |
| CN101596746B true CN101596746B (en) | 2010-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009103049288A Active CN101596746B (en) | 2009-07-29 | 2009-07-29 | Sealing structure of shaft end of horizontal concrete mixer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434022A (en) * | 2013-08-05 | 2013-12-11 | 新疆宇鑫混凝土有限公司 | Shaft end location and locking structure of stirrer |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748473B (en) * | 2012-07-10 | 2015-01-07 | 蔡达棋 | Novel shaft end sealing device of concrete mixer |
| CN102887554B (en) * | 2012-09-21 | 2013-08-14 | 江苏北辰环境科技有限公司 | Horizontal type stirrer through-wall structure of sewage treating pond |
| CN104197017A (en) * | 2014-08-01 | 2014-12-10 | 珠海仕高玛机械设备有限公司 | Water cooling oil-free spindle nose sealing structure for horizontal type concrete stirrer |
| CN105108901A (en) * | 2015-07-16 | 2015-12-02 | 柳州铁道职业技术学院 | Concrete mixing device for building construction |
| CN112747118B (en) * | 2020-12-30 | 2021-12-07 | 中南大学 | Shaft end sealing device of powder material mixing equipment and mounting method thereof |
-
2009
- 2009-07-29 CN CN2009103049288A patent/CN101596746B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434022A (en) * | 2013-08-05 | 2013-12-11 | 新疆宇鑫混凝土有限公司 | Shaft end location and locking structure of stirrer |
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| Publication number | Publication date |
|---|---|
| CN101596746A (en) | 2009-12-09 |
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Effective date of registration: 20170710 Address after: 611430 hope road, Xinjin Industrial Park, Chengdu, Sichuan Patentee after: Chengdu build new concrete machinery equipment Co., Ltd. Address before: 611430 Xinjin Industrial Park, Sichuan, Chengdu Patentee before: Chengdu Xinzhu Luqiao Mechine Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 611430 hope road, Xinjin Industrial Park, Chengdu, Sichuan Patentee after: Sichuan new construction intelligent engineering equipment manufacturing Co., Ltd. Address before: 611430 hope road, Xinjin Industrial Park, Chengdu, Sichuan Patentee before: Chengdu build new concrete machinery equipment Co., Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 611430 No.58, south section of Industrial Avenue, Qinglong Town, Pengshan District, Chengdu, Sichuan Province Patentee after: SICHUAN XINZHU INTELLIGENT ENGINEERING EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 611430 hope road, Xinjin Industrial Park, Chengdu City, Sichuan Province Patentee before: SICHUAN XINZHU INTELLIGENT ENGINEERING EQUIPMENT MANUFACTURING Co.,Ltd. |