CN101899974B - Development machine and floating sealing device thereof - Google Patents
Development machine and floating sealing device thereof Download PDFInfo
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- CN101899974B CN101899974B CN2010102492318A CN201010249231A CN101899974B CN 101899974 B CN101899974 B CN 101899974B CN 2010102492318 A CN2010102492318 A CN 2010102492318A CN 201010249231 A CN201010249231 A CN 201010249231A CN 101899974 B CN101899974 B CN 101899974B
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- connection block
- main shaft
- development machine
- rotary main
- floating seal
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Abstract
The invention discloses a floating sealing device for a development machine, which comprises a first connection base (2) arranged on a rotary main shaft (1) of the development machine and a second connection base (4) arranged on a protective shell (3) of the development machine, wherein the first connection base (2) and the second connection base (4) have preset distance in the axial direction of the rotary main shaft (1); and the first connection base (2) is movably connected with the rotary main shaft (1) in the axial direction of the rotary main shaft (1). The floating sealing device overcomes the defect of error caused by mismachining tolerance, of the axial distance of the two connection bases, improves the operational performance, and simultaneously, reduces the requirements on machining and assembly of parts of the floating sealing device, so the machining cost is reduced. The invention also discloses the development machine with the floating sealing device.
Description
Technical field
The present invention relates to the coal excavation apparatus technical field, particularly a kind of floating seal that is used for development machine.The invention still further relates to a kind of development machine that comprises above-mentioned floating seal.
Background technology
Along with the fast development of China's economic construction, coal industry constantly develops towards the direction of mechanization, automation, and comprehensive mechanical coal mining equipment is applied among the coal production of various geological conditionss more and more widely.
In the operation of mechanical coal mining, development machine is one of main extractive equipment, realizes the digging in tunnel through the rotation cutting of cutterhead.Development machine mainly comprises the cutterhead that is used to dig the tunnel; Cutterhead is the important component part of tunneling machine cutting portion; Cutting units also comprises rotary main shaft etc.; Cutterhead rotates under the drive of rotary main shaft, and the raw coal that cutterhead downcuts gets into transport establishment through the material collecting device of shovel board, and transport establishment transfers to raw coal on shuttle car or the scratch board conveyor and transports the tunnel.
Because development machine is when work; Cutting units often need be embedded in the muddy water, enters into rotary main shaft for preventing muddy water, dust etc., the inner parts such as bearing of protection rotary main shaft; The protection housing that need have tubular in the periphery of rotary main shaft; Rotary main shaft is installed in this protection housing, and an end of protection housing is fixedly connected with the main part of development machine, and the other end relatively rotates with rotary main shaft through bearing and is connected; The end that rotary main shaft is connected with cutterhead is positioned at outside the housing; Between part outside the housing and housing, be provided with sealing device at rotary main shaft, in order to cushion the impact that cutterhead vibration at work produces rotary main shaft, the sealing device is generally floating seal.
Floating seal comprises that first Connection Block that is fixed on the housing is second Connection Block on the rotary main shaft with fixed installation; First sealing ring is installed in first Connection Block; Second sealing ring that fits with first sealing ring is installed in second Connection Block; In order to guarantee the operate as normal of sealing ring, rotary main shaft axially on, have predetermined distance between first Connection Block and second Connection Block.In the course of work of floating seal; Requirement to the axial distance between first Connection Block and second Connection Block is relatively stricter; This axial distance is crossed the affects sealing effectiveness; Axial distance is too small, because frictional force is bigger, can have a strong impact on the application life of floating seal in the course of the work; At present, general size through control first Connection Block and second Connection Block guarantees distance between the two, still; In the process of first Connection Block and second Connection Block, and in both assembling processes, error all is unavoidable; In the process of processing and assembling, the error that each operation causes can be accumulated, after causing assembling completion; Error between first Connection Block and second Connection Block is bigger, influences both axial distances; And the mode of above-mentioned formation axial distance is to the processing of part and the comparatively strictness of requirement of assembling process, and processing cost is higher.
Therefore; How to reduce the error of floating seal two Connection Block axial distances, improve the functional performance of floating seal, and reduction is to the processing of the part of floating seal and the requirement of assembling; Cut down finished cost, just become the problem that those skilled in the art need solve.
Summary of the invention
The purpose of this invention is to provide a kind of development machine floating seal that is used for, the error of the axial distance between its two Connection Block is less, and functional performance is higher, and its requirement to the processing of part and assembling is lower, thereby has lower cost of production.Another object of the present invention provides a kind of development machine that comprises above-mentioned floating seal.
For solving the problems of the technologies described above; The present invention provides a kind of floating seal that is used for development machine; Comprise first Connection Block on the rotary main shaft that is installed on said development machine; With second Connection Block on the protection housing that is installed on said development machine, said first Connection Block and said second Connection Block said rotary main shaft axially on have predetermined distance; Said first Connection Block and said rotary main shaft said rotary main shaft axially on be movably connected.
Preferably, the inwall of said first Connection Block offers internal thread, and the outer wall of said rotary main shaft offers the external screw thread with said screw-internal thread fit.
Preferably, said first Connection Block selectively is fixedly connected through alignment pin with said rotary main shaft.
Preferably, said second Connection Block selectively is fixedly connected through second alignment pin with said protection housing.
Preferably, said second Connection Block is fixedly connected with inner peripheral surface with the end face of said protection housing with outer circumference surface through its end face.
Preferably, said second Connection Block is connected through bolt with said protection housing.
Preferably, said second Connection Block is equipped with oil seal washer towards an end of said protection enclosure interior.
The present invention also provides a kind of development machine, comprise rotary main shaft, protect housing and be installed on said rotary main shaft and said protection housing between floating seal, said floating seal is as above-mentioned each described floating seal.
The floating seal that is used for development machine provided by the present invention; Comprise first Connection Block and second Connection Block; Wherein first Connection Block is installed on the rotary main shaft of development machine; Second Connection Block is installed on the protection housing of development machine, first Connection Block and second Connection Block rotary main shaft axially on have predetermined distance, the axial location of first Connection Block on rotary main shaft selectively changes; Like this, in the assembling process of floating seal,, change the position of first Connection Block on rotary main shaft, make first Connection Block to direction motion near second Connection Block when the actual range between first Connection Block and second Connection Block during greater than preset distance; When the actual range between first Connection Block and second Connection Block during less than preset distance; Make first Connection Block to direction motion away from second Connection Block; So that change through the axial location of first Connection Block on rotary main shaft; Make the distance of winning between the Connection Block and second Connection Block be always predetermined distance, thereby overcome the error of the axial distance of two Connection Blocks that produce owing to mismachining tolerance, improved the functional performance of floating seal; Simultaneously, reduced the processing of the part of floating seal and the requirement of assembling, thereby reduced processing cost.
A kind of preferred embodiment in, the inwall of above-mentioned first Connection Block offers internal thread, the outer wall of rotary main shaft offers the external screw thread with screw-internal thread fit, first Connection Block and rotary main shaft were realized connecting through being connected of internal and external screw thread; Like this, through the turn of first Connection Block on rotary main shaft is axial, realize its change in location on rotary main shaft is axial, structure is comparatively simple, and can realize electrodeless continuous adjustment, has further improved switching performance.
Description of drawings
Fig. 1 is the sectional view of the main apparent direction of a kind of specific embodiment of floating seal that is used for development machine provided by the present invention;
Fig. 2 is the enlarged drawing of A part among Fig. 1;
Fig. 3 is the structural representation of floating seal shown in Figure 1 in the side-looking direction.
The specific embodiment
Core of the present invention provides a kind of development machine floating seal that is used for, and the error of the axial distance between its two Connection Block is less, and functional performance is higher, and its requirement to the processing of part and assembling is lower, thereby has lower cost of production.Another core of the present invention provides a kind of development machine that comprises above-mentioned floating seal.
In order to make those skilled in the art person understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation that is used for a kind of specific embodiment of floating seal of development machine provided by the present invention; Fig. 2 is the enlarged drawing of A part among Fig. 1.
In a kind of specific embodiment, floating seal provided by the present invention is used for development machine, specifically is used for the cut part of development machine.This floating seal comprises first Connection Block 2, second Connection Block 4; And the sealing ring 8 that is installed on first Connection Block 2 and second Connection Block, 4 apparent surfaces respectively; Sealing circle 8 comprises the first lap and second circle with suitable thrust; Wherein first lap is installed in the groove of first Connection Block 2, and second circle is installed in the groove of second Connection Block 4, and sealing ring 8 is realized the sealing of floating seal.First Connection Block 2 is installed on the rotary main shaft 1 of development machine; Second Connection Block 4 is installed on the protection housing 3 of development machine; First Connection Block 2 and second Connection Block 4 rotary main shaft 1 axially on have predetermined distance, the axial location of first Connection Block 2 on rotary main shaft 1 selectively changes.
Because rotary main shaft 1 is circular cross section with protection housing 3, therefore, above-mentioned first Connection Block 2 and second Connection Block 4 obviously should be cyclic structure, are complementary with the profile of its rotary main shaft that is connected separately 1 with protection housing 3 respectively.
The material of first Connection Block 2 and second Connection Block 4 can be the conventional various metal material that use in this area, and for example steel, cast iron etc. also can other have the material of enough rigidity and intensity.
It is to be noted; Development machine provided by the present invention not only comprises above-mentioned floating seal and the rotary main shaft 1 that is used for the cut part; This development machine also comprises the necessary structure ingredient of other development machines; For example running part, main part etc., but these parts and inventive point of the present invention relation are not really close, therefore repeat no more at this.
Like this; In the assembling process of floating seal; When the actual range between first Connection Block 2 and second Connection Block 4 during greater than preset distance, change first position of Connection Block 2 on rotary main shaft 1, make first Connection Block 2 to direction motion near second Connection Block 4; When the actual range between first Connection Block 2 and second Connection Block 4 during less than preset distance; Make first Connection Block 2 to direction motion away from second Connection Block 4; So that change through the axial location of first Connection Block 2 on rotary main shaft 1; Make the distance of winning between the Connection Block 2 and second Connection Block 4 be always predetermined distance, thereby reduced the error of two Connection Block axial distances, improved the functional performance of floating seal; Simultaneously, reduced the processing of the part of floating seal and the requirement of assembling, thereby reduced processing cost.
Realize that first Connection Block 2 can have multiple concrete mode in the change of the axial location of rotary main shaft 1, for example, the inwall of above-mentioned first Connection Block 2 can offer internal thread, and the outer wall of rotary main shaft 1 can offer the external screw thread with screw-internal thread fit; Like this, in the turn of rotary main shaft on axially, realize it in the change in location of rotary main shaft 1 on axially through first Connection Block 2, structure is comparatively simple, and can realize electrodeless continuous adjustment, has further improved switching performance.
Above-mentioned first Connection Block 2 can also increase by first alignment pin 5 with rotary main shaft 1 on the basis that is threaded, selectively both are fixedly connected through first alignment pin 5, thereby have improved the connection reliability of first Connection Block 2 with rotary main shaft 1.
Theoretically; Realize that first Connection Block 2 also is not limited to the above-mentioned specific embodiment in the change of the axial location of rotary main shaft 1; Also can take other conventional in this area modes to realize; For example, can offer locating hole, and axially offer some locating holes along rotary main shaft 1 in the appropriate location of first Connection Block 2; Connection through the different locating holes on the locating hole on first Connection Block 2 and the rotary main shaft 1 is fixed, and realizes the change of the axial location of first Connection Block 2 on rotary main shaft 1.
Can also further improve the floating seal that is used for development machine provided by the present invention.
In the another kind of specific embodiment, the outer wall of second Connection Block 4 fits with the inwall of protection housing 3, and the axial location of second Connection Block 4 on protection housing 3 selectively changes; Like this, can further improve the ability that floating seal overcomes error, thereby further improve the functional performance of floating seal through of the variation of second Connection Block 4 along the axial location of protection housing 3.
The variation pattern of realizing the axial location of second Connection Block 4 on protection housing 3 also can have multiple; For example; The outer wall of second Connection Block 4 offers second external screw thread, and the inwall of protection housing 3 offers second internal thread that matches with second external screw thread, and second Connection Block 4 is threaded with protection housing 3; Through the turn of second Connection Block 4, realize the change of its axial location on protection housing 3.
Second Connection Block 4 also is not limited to is protecting moving axially of housing 3, and it also can be fixedly installed in protection housing 3, the second Connection Blocks 4 and can be fixedly connected through the end face of its end face with protection housing 3.
Protection housing 3 and rotary main shaft 1 are rotationally connected through bearing, and second Connection Block 4 is equipped with oil seal washer 7 towards protection housing 3 inner ends; Because the inside at protection housing 3 need be marked with lubrication oil, with lubricating of parts such as assurance bearing, realize liquid seals through oil seal washer 7, avoid protecting the lubrication oil in the housing 3 to leak, improved lubricating quality.
Except above-mentioned floating seal, the present invention also provides a kind of development machine that comprises above-mentioned floating seal, and other each several part structures of this development machine please refer to prior art, repeat no more at this.
More than a kind of development machine provided by the present invention and floating seal thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (8)
1. floating seal that is used for development machine; Comprise first Connection Block (2) on the rotary main shaft (1) that is installed on said development machine; With second Connection Block (4) on the protection housing (3) that is installed on said development machine, said first Connection Block (2) and said second Connection Block (4) said rotary main shaft (1) axially on have predetermined distance; It is characterized in that, said first Connection Block (2) and said rotary main shaft (1) said rotary main shaft (1) axially on be movably connected.
2. the floating seal that is used for development machine according to claim 1 is characterized in that, the inwall of said first Connection Block (2) offers internal thread, and the outer wall of said rotary main shaft (1) offers the external screw thread with said screw-internal thread fit.
3. the floating seal that is used for development machine according to claim 2 is characterized in that, said first Connection Block (2) selectively is fixedly connected through alignment pin (5) with said rotary main shaft (1).
4. according to each described floating seal that is used for development machine of claim 1 to 3; It is characterized in that; The inwall of the outer wall of said second Connection Block (4) and said protection housing (3) fits, said second Connection Block (4) and said protection housing (3) said protection housing (3) axially on be movably connected.
5. according to each described floating seal that is used for development machine of claim 1 to 3, it is characterized in that said second Connection Block (4) is fixedly connected with inner peripheral surface with the end face of outer circumference surface with said protection housing (3) through its end face.
6. the floating seal that is used for development machine according to claim 5 is characterized in that, said second Connection Block (4) is connected through bolt (6) with said protection housing (3).
7. according to each described floating seal that is used for development machine of claim 1 to 3, it is characterized in that said second Connection Block (4) is equipped with oil seal washer (7) towards the inner end of said protection housing (3).
8. development machine; Comprise rotary main shaft (1), the protection housing (3) and be installed on said rotary main shaft (1) and said protection housing (3) between floating seal; It is characterized in that said floating seal is like each described floating seal of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102492318A CN101899974B (en) | 2010-08-03 | 2010-08-03 | Development machine and floating sealing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102492318A CN101899974B (en) | 2010-08-03 | 2010-08-03 | Development machine and floating sealing device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101899974A CN101899974A (en) | 2010-12-01 |
| CN101899974B true CN101899974B (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102492318A Active CN101899974B (en) | 2010-08-03 | 2010-08-03 | Development machine and floating sealing device thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146793A (en) * | 2011-01-14 | 2011-08-10 | 三一重型装备有限公司 | Tunneller and cutting mechanism thereof |
| CN103256469B (en) * | 2012-02-21 | 2015-08-12 | 上海创力集团股份有限公司 | A kind of cutting arm of tunneling machine bearing-lubricating device |
| EA034076B1 (en) * | 2014-01-03 | 2019-12-25 | Сухуа Лю | Floating sealing method of floating bushing sealing reciprocating impact apparatus and floating sealing reciprocating impact apparatus of sealing floating bushing of mining loader |
| CN107975601A (en) * | 2017-12-05 | 2018-05-01 | 徐州徐工基础工程机械有限公司 | A kind of cutting arm of tunneling machine plug-in dustproof construction |
| CN109099048B (en) * | 2018-08-10 | 2020-02-07 | 辽宁新福源精密制造科技有限公司 | Main shaft of pipe-jacking tunneling machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4166959B2 (en) * | 2001-03-16 | 2008-10-15 | 株式会社小松製作所 | Cutter head of shield machine |
| CN200949467Y (en) * | 2006-09-18 | 2007-09-19 | 陈庆仁 | Digging machine internal spraying closed housing sealing automatic compensating device |
| CN101109446B (en) * | 2007-08-16 | 2010-11-24 | 广州广重企业集团有限公司 | Sealing device of disk shaped knife |
| CN101280847A (en) * | 2007-12-24 | 2008-10-08 | 沈阳重型机械集团有限责任公司 | Main bearing multi-layer sealing structure of complete section tunnel boring machine |
| CN201730616U (en) * | 2010-08-03 | 2011-02-02 | 三一重型装备有限公司 | Development machine and floating sealing device thereof |
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Effective date of registration: 20170120 Address after: 413000 Yiyang high tech Zone in the eastern part of the New District of integrated services building, room 512, Hunan Patentee after: Yiyang science and Technology Achievement Transformation Service Center Patentee after: Sany Heavy Equipment Co.,Ltd. Address before: Yansai Lake Street 110027 economic and Technological Development Zone Liaoning city Shenyang province No. 31 Patentee before: Sany Heavy Equipment Co.,Ltd. |