CN201730616U - Development machine and floating sealing device thereof - Google Patents
Development machine and floating sealing device thereof Download PDFInfo
- Publication number
- CN201730616U CN201730616U CN2010202858423U CN201020285842U CN201730616U CN 201730616 U CN201730616 U CN 201730616U CN 2010202858423 U CN2010202858423 U CN 2010202858423U CN 201020285842 U CN201020285842 U CN 201020285842U CN 201730616 U CN201730616 U CN 201730616U
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- connection block
- main shaft
- development machine
- rotary main
- floating seal
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Abstract
The utility model discloses a floating sealing device for a development machine, which comprises a first connecting seat (2) installed on a rotating main shaft (1) of the development machine, and a second connecting seat (4) installed on a protective casing (3) of the development machine. A preset distance is reserved between the first connecting seat (2) and the second connecting seat (4) in the axial direction of the rotating main shaft (1), and the first connecting seat (2) can be movably connected with the rotating main shaft (1) in the axial direction of the rotating main shaft (1). The device overcomes the error of the axial distance between the two connecting seats caused by machining error, and improves the service performance; meanwhile, the requirements on machining and assembling parts of the floating sealing device are lowered, further the machining cost is reduced. The utility model also discloses a development machine comprising the floating sealing device.
Description
Technical field
The utility model relates to the coal excavation apparatus technical field, particularly a kind of floating seal that is used for development machine.The utility model also 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 by 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, the raw coal that cutterhead downcuts enters transport establishment by the material collecting device of shovel board portion, 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; for preventing muddy water; dusts etc. enter into rotary main shaft; the parts such as bearing of protection rotary main shaft inside; the protection housing that need have tubular in the periphery of rotary main shaft; rotary main shaft is installed in this protection housing; one end of protection housing is fixedlyed connected with the main part of development machine; the other end relatively rotates with rotary main shaft by 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 first Connection Block that is fixed on the housing and fixedly mounts second Connection Block that is on the rotary main shaft, 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 conference influences 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 by control first Connection Block and second Connection Block guarantees distance between the two, but, in the process of first Connection Block and second Connection Block, and in both assembling processes, error all is unavoidable, processing and the assembling process in, the error that each operation causes can be accumulated, cause the assembling finish after, 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.
The utility model content
The purpose of this utility model 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 purpose of the present utility model provides a kind of development machine that comprises above-mentioned floating seal.
For solving the problems of the technologies described above, the utility model 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 described development machine, with second Connection Block on the protection housing that is installed on described development machine, described first Connection Block and described second Connection Block described rotary main shaft axially on have predetermined distance; Described first Connection Block and described rotary main shaft described rotary main shaft axially on be movably connected.
Preferably, the inwall of described first Connection Block offers internal thread, and the outer wall of described rotary main shaft offers the external screw thread with described screw-internal thread fit.
Preferably, described first Connection Block is selectively fixedlyed connected by alignment pin with described rotary main shaft.
Preferably, described second Connection Block is selectively fixedlyed connected by second alignment pin with described protection housing.
Preferably, described second Connection Block is fixedlyed connected with inner peripheral surface with the end face of described protection housing with outer circumference surface by its end face.
Preferably, described second Connection Block is connected by bolt with described protection housing.
Preferably, described second Connection Block is equipped with oil seal washer towards an end of described protection enclosure interior.
The utility model also provides a kind of development machine, comprise rotary main shaft, protect housing and be installed on described rotary main shaft and described protection housing between floating seal, described floating seal is as above-mentioned each described floating seal.
The floating seal of development machine that the utility model is provided for, 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 by 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 by being connected of internal and external screw thread; Like this, by 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 utility model;
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 utility model 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 utility model provides a kind of development machine that comprises above-mentioned floating seal.
In order to make those skilled in the art person understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
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 utility model; Fig. 2 is the enlarged drawing of A part among Fig. 1.
In a kind of specific embodiment, floating seal provided by the utility model 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, 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 and protection housing 3 are circular cross section, therefore, above-mentioned first Connection Block 2 and second Connection Block 4 obviously should be cyclic structure, and the profile with its rotary main shaft that is connected separately 1 and protection housing 3 is complementary 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 utility model 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 utility model point of the present utility model relation are not really close, therefore do not repeat them here.
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 by 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 by 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 that both are fixedly connected by first alignment pin 5, thereby has 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 in the appropriate location of first Connection Block 2, and axially offer some locating holes along rotary main shaft 1, by being connected and fixed of the different locating holes on the locating hole on first Connection Block 2 and the rotary main shaft 1, realize the change of the axial location of first Connection Block 2 on rotary main shaft 1.
Can also be further improved the floating seal that is used for development machine provided by the utility model.
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 by 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; the inwall of protection housing 3 offers second internal thread that matches with second external screw thread; second Connection Block 4 is threaded with protection housing 3; by the turn of second Connection Block 4, realize the change of its axial location on protection housing 3.
Except above-mentioned floating seal, the utility model 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, do not repeat them here.
More than a kind of development machine provided by the utility model and floating seal thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
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 described development machine, with second Connection Block (4) on the protection housing (3) that is installed on described development machine, described first Connection Block (2) and described second Connection Block (4) described rotary main shaft (1) axially on have predetermined distance; It is characterized in that, described first Connection Block (2) and described rotary main shaft (1) described 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 described first Connection Block (2) offers internal thread, and the outer wall of described rotary main shaft (1) offers the external screw thread with described screw-internal thread fit.
3. the floating seal that is used for development machine according to claim 2 is characterized in that, described first Connection Block (2) is selectively fixedlyed connected by alignment pin (5) with described 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 described second Connection Block (4) and described protection housing (3) fits, described second Connection Block (4) and described protection housing (3) described 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 described second Connection Block (4) is fixedlyed connected with inner peripheral surface with the end face of described protection housing (3) with outer circumference surface by its end face.
6. the floating seal that is used for development machine according to claim 5 is characterized in that, described second Connection Block (4) is connected by bolt (6) with described 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 described second Connection Block (4) is equipped with oil seal washer (7) towards the inner end of described protection housing (3).
8. development machine; comprise rotary main shaft (1), the protection housing (3) and be installed on described rotary main shaft (1) and described protection housing (3) between floating seal; it is characterized in that described floating seal is as each described floating seal of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202858423U CN201730616U (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 |
|---|---|---|---|
| CN2010202858423U CN201730616U (en) | 2010-08-03 | 2010-08-03 | Development machine and floating sealing device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201730616U true CN201730616U (en) | 2011-02-02 |
Family
ID=43521774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202858423U Expired - Lifetime CN201730616U (en) | 2010-08-03 | 2010-08-03 | Development machine and floating sealing device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201730616U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899974A (en) * | 2010-08-03 | 2010-12-01 | 三一重型装备有限公司 | Development machine and floating sealing device thereof |
| CN103671929A (en) * | 2012-09-17 | 2014-03-26 | 林州重机集团股份有限公司 | Novel full-sealing device for cutting component of roadheader |
| US10605367B2 (en) | 2016-02-02 | 2020-03-31 | Nok Corporation | Sealing apparatus |
-
2010
- 2010-08-03 CN CN2010202858423U patent/CN201730616U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899974A (en) * | 2010-08-03 | 2010-12-01 | 三一重型装备有限公司 | Development machine and floating sealing device thereof |
| CN103671929A (en) * | 2012-09-17 | 2014-03-26 | 林州重机集团股份有限公司 | Novel full-sealing device for cutting component of roadheader |
| US10605367B2 (en) | 2016-02-02 | 2020-03-31 | Nok Corporation | Sealing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110202 Effective date of abandoning: 20120208 |