CN217539549U - Novel wading sand sealing structure for gear box of rail type tunnel tractor - Google Patents
Novel wading sand sealing structure for gear box of rail type tunnel tractor Download PDFInfo
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- CN217539549U CN217539549U CN202221600215.3U CN202221600215U CN217539549U CN 217539549 U CN217539549 U CN 217539549U CN 202221600215 U CN202221600215 U CN 202221600215U CN 217539549 U CN217539549 U CN 217539549U
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Abstract
The utility model provides a there is rail formula tunnel tractor gear box with novel husky seal structure of wading, belong to gear box technical field, including the gear box casing, be fixed with the bearing frame on the input/output port of gear box casing, input/output shaft passes through the bearing and supports inside the bearing frame, the bearing frame outer end is fixed with the bearing cap, input/output shaft end is worn out the bearing cap and is gone up and has the flange that tests the speed through the fixed cover of nut on it, the flange rear end cover that tests the speed is inside the bearing cap, it is sealed through the oil blanket between flange rear end excircle surface and the bearing cap inner circle surface to test the speed, it is sealed through the sealing washer between flange and the nut to test the speed, it is sealed through labyrinth seal structure between the radial opposite face between flange and the bearing cap to test the speed. The utility model discloses an increase a set of labyrinth seal on flange and the bearing cap tests the speed, effectively prevented the entering of sewage, silt, promote the sealed effect of gear box, prolong speed change drive mechanism's life-span.
Description
Technical Field
The utility model belongs to the technical field of the gear box, concretely relates to there is rail formula tunnel tractor gear box with novel husky seal structure of wading.
Background
The gear box variable speed transmission mechanism is an important component of a rail type tunnel tractor, the sealing of an input/output shaft of the gear box variable speed transmission mechanism usually adopts single forms such as traditional packing sealing, Y-shaped sealing and O-shaped sealing, but due to the existence of a gap between the shaft and the sealing, when the tunnel tractor wades into silt to run, sewage, silt and the like enter the gear box, so that the failure of lubricating oil and the rapid abrasion of gears are caused, and the damage of the variable speed transmission mechanism is further caused. There is therefore a need for improvements.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem: the utility model provides a there is rail formula tunnel tractor gear box with novel wading husky seal structure that wades, the utility model discloses an increase a set of labyrinth seal on flange and the bearing cap tests the speed, effectively prevented the entering of sewage, silt, promote the sealed effect of gear box, prolong speed change transmission mechanism's life-span.
The utility model adopts the technical proposal that: have rail formula tunnel tractor gear box with novel husky seal structure of wading, including the gear box casing, be fixed with the bearing frame on the input/output port of gear box casing, input/output shaft passes through the bearing and supports inside the bearing frame, the bearing frame outer end is fixed with the bearing cap, input/output shaft end is worn out the bearing cap and is gone up through the fixed cover of nut and has the flange that tests the speed, the flange rear end cover that tests the speed is inside the bearing cap, it is sealed through the oil blanket between flange rear end excircle surface and the bearing cap inner circle surface to test the speed, it is sealed through the sealing washer between flange and the nut to test the speed, it is sealed through labyrinth seal structure between the radial opposite face between flange and the bearing cap to test the speed.
The labyrinth seal structure comprises a groove-shaped labyrinth I arranged on a radial surface, opposite to the bearing cover, of the speed measuring flange and a groove-shaped labyrinth II arranged on a radial surface, opposite to the speed measuring flange, of the bearing cover, wherein the groove-shaped labyrinth I and the groove-shaped labyrinth II are in clearance fit with each other.
In order to further limit the technical scheme, the groove type of the groove type labyrinth I and the groove type of the groove type labyrinth II are rectangular groove structures.
In addition, the bearing cover is provided with a pressure filling oil cup which is communicated with a gap between the speed measuring flange and the bearing cover.
In order to further limit the technical scheme, the pressure injection oil cup adopts a straight-through type pressure injection oil cup.
In order to further limit the technical scheme, the bearing cover and the bearing seat are fixedly connected with the gear box shell through bolts.
In order to further limit the technical scheme, the sealing ring between the speed measuring flange and the nut is an O-shaped sealing ring.
The utility model has the advantages compared with the prior art:
1. according to the scheme, a group of labyrinth seals are added on the basis of the traditional sealing form, so that the entering of sewage and silt is effectively prevented, the sealing effect of the gear box is effectively improved, and the service life of the variable speed transmission mechanism is prolonged;
2. the labyrinth seal structure in the scheme has the advantages that the groove-shaped labyrinth is carved on the speed measuring flange and the bearing cover and is in clearance fit with each other, lubricating grease is injected into the oil cup through the through type pressure injection, the labyrinth seal effect is enhanced, and the friction between the speed measuring flange and the bearing cover at the labyrinth position during rotation is reduced.
Drawings
FIG. 1 is a front view of the structure of the present invention;
fig. 2 is a top view of the structure of the present invention;
fig. 3 is a schematic view of a portion a of fig. 2 according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Please refer to fig. 1-3, which illustrate an embodiment of the present invention.
There is rail formula tunnel tractor gear box with novel husky seal structure of wading, including gear box casing 1, be fixed with bearing frame 2 on the input/output port of gear box casing 1, input/output shaft 3 supports inside bearing frame 2 through bearing 4, 2 outer ends of bearing frame are fixed with bearing cap 5, bearing cap 5 and bearing frame 2 pass through bolt 6 and gear box casing 1 fixed connection.
The end of the input/output shaft 3 penetrates through the bearing cover 5 and is fixedly sleeved with a speed measuring flange 7 through a nut 14. The rear end of the speed measuring flange 7 is sleeved inside the bearing cover 5, the outer circular surface of the rear end of the speed measuring flange 7 and the inner circular surface of the bearing cover 5 are sealed through an oil seal 8, and the speed measuring flange 7 and the nut 14 are sealed through an O-shaped sealing ring 9. The radial opposite surfaces between the speed measuring flange 7 and the bearing cover 5 are sealed through a labyrinth seal structure 10. Specifically, the labyrinth seal structure 10 includes a groove-shaped labyrinth i 11 disposed on the radial surface of the speed measuring flange 7 opposite to the bearing cover 5 and a groove-shaped labyrinth ii 12 disposed on the radial surface of the bearing cover 5 opposite to the speed measuring flange 7, and the groove-shaped labyrinth i 11 and the groove-shaped labyrinth ii 12 are in clearance fit with each other.
Preferably, the groove type of the groove type labyrinth I11 and the groove type labyrinth II 12 is a rectangular groove structure.
And the bearing cover 5 is provided with a pressure filling oil cup 13, and the pressure filling oil cup 13 is communicated with a gap between the speed measuring flange 7 and the bearing cover 5. Preferably, the pressure filling oil cup 13 is a straight-through pressure filling oil cup.
The utility model discloses an on the basis of traditional sealed form, increase a set of labyrinth seal, through all being carved with cell type labyrinth and clearance fit each other on the flange and the bearing cap test the speed, through direct formula pressure filling oil cup pours into lubricating grease into, both strengthened the sealed effect in labyrinth, also reduced the flange test the speed when rotatory with the bearing cap friction in labyrinth department, effectively prevented the entering of sewage, silt, promote the sealed effect of gear box, extension variable speed drive mechanism's life-span.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. Have rail formula tunnel tractor gear box with novel husky seal structure of wading, including gear box casing (1), be fixed with bearing frame (2) on the input/output port of gear box casing (1), input/output shaft (3) support inside bearing frame (2) through bearing (4), bearing frame (2) outer end is fixed with bearing cap (5), bearing cap (5) and its it has speed measuring flange (7), its characterized in that through nut (14) fixed cover on and are worn out to input/output shaft (3) end: the speed measuring flange (7) rear end sleeve is inside bearing cap (5), it is sealed through oil blanket (8) to test the speed between flange (7) rear end excircle surface and the bearing cap (5) inner circle surface, it is sealed through sealing washer (9) to test the speed between flange (7) and nut (14), it is sealed through labyrinth seal structure (10) to test the speed between the radial opposite face between flange (7) and bearing cap (5).
2. The novel wading sand sealing structure for the gearbox of the rail-bound tunnel tractor according to claim 1, is characterized in that: labyrinth seal structure (10) are including locating groove type maze I (11) on the radial face that tests the speed flange (7) relative with bearing cap (5) and locating groove type maze II (12) on the radial face that tests the speed flange (7) on bearing cap (5) relative, groove type maze I (11) and groove type maze II (12) mutual clearance adaptation.
3. The novel wading sand sealing structure for the gearbox of the rail-bound tunnel tractor according to claim 2, is characterized in that: the groove type of groove type maze I (11) and groove type maze II (12) is the rectangular channel structure.
4. The novel wading sand sealing structure for the gearbox of the rail-bound tunnel tractor according to claim 2, is characterized in that: and a pressure filling oil cup (13) is arranged on the bearing cover (5), and the pressure filling oil cup (13) is communicated with a gap between the speed measuring flange (7) and the bearing cover (5).
5. The novel wading and sand-wading sealing structure for the gearbox of the rail-mounted tunnel tractor according to claim 4, wherein: the pressure injection oil cup (13) adopts a straight-through pressure injection oil cup.
6. The novel wading sand sealing structure for the gearbox of the rail-bound tunnel tractor according to claim 1, is characterized in that: the bearing cover (5) and the bearing seat (2) are fixedly connected with the gear box shell (1) through bolts (6).
7. The novel wading sand sealing structure for the gearbox of the rail-bound tunnel tractor according to claim 1, is characterized in that: and a sealing ring (9) between the speed measuring flange (7) and the nut (14) is an O-shaped sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221600215.3U CN217539549U (en) | 2022-06-23 | 2022-06-23 | Novel wading sand sealing structure for gear box of rail type tunnel tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221600215.3U CN217539549U (en) | 2022-06-23 | 2022-06-23 | Novel wading sand sealing structure for gear box of rail type tunnel tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217539549U true CN217539549U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221600215.3U Active CN217539549U (en) | 2022-06-23 | 2022-06-23 | Novel wading sand sealing structure for gear box of rail type tunnel tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217539549U (en) |
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2022
- 2022-06-23 CN CN202221600215.3U patent/CN217539549U/en active Active
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