CN204716981U - For the outer oil seal structure of semifloating axle shaft assembly - Google Patents
For the outer oil seal structure of semifloating axle shaft assembly Download PDFInfo
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- CN204716981U CN204716981U CN201520449406.8U CN201520449406U CN204716981U CN 204716981 U CN204716981 U CN 204716981U CN 201520449406 U CN201520449406 U CN 201520449406U CN 204716981 U CN204716981 U CN 204716981U
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- semiaxis
- oil seal
- outer oil
- capsul
- dust
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Abstract
The utility model discloses a kind of outer oil seal structure for semifloating axle shaft assembly that can increase axle-shaft oil seal working life.This outer oil seal structure comprises semiaxis, half shaft bearing block, semiaxis outer oil seal and semiaxis capsul; Described semiaxis is arranged on half shaft bearing block by bearing; Described semiaxis one end is carry end, and the other end is connecting end; Described semiaxis outer oil seal is sleeved on semiaxis, and between carry end and half shaft bearing block; Described semiaxis outer oil seal one end and half shaft bearing block are sealed and matched, and the other end is provided with dust-proof seam; Described semiaxis capsul is between semiaxis outer oil seal and the carry end of semiaxis; The carry end of described semiaxis capsul and semiaxis is sealed and matched; Dust-proof seam and the semiaxis capsul of semiaxis outer oil seal are sealed and matched.Adopt this for the outer oil seal structure of semifloating axle shaft assembly, the destruction of sand and dust for semiaxis outer oil seal can be reduced, increase the working life of semiaxis outer oil seal; Reduce the requirement that outer oil seal manufactures material, reduce manufacture cost.
Description
Technical field
The utility model relates to a kind of oil seal structure, especially a kind of outer oil seal structure for semifloating axle shaft assembly.
Background technique
Known: at present, the outer oil seal of semifloating axle shaft assembly selects common vehicle oil seal usually, because automobile half-axle outer oil seal working environment is comparatively severe, therefore outer oil seal is easily damaged.Be illustrated in figure 1 the outer oil seal mounting structure of traditional semifloating axle shaft assembly, comprise outer oil seal 6, semiaxis 1, half shaft bearing block 2, bearing 3, described semiaxis 1 is arranged on half shaft bearing block 2 by bearing 3, and described outer oil seal 6 to be sleeved on semiaxis 1 and to be sealed and matched with half shaft bearing block 2.As shown in Figure 1, gap A is there is in the outer oil seal mounting structure of traditional semifloating axle shaft assembly between semiaxis 1 and outer oil seal 6, because outer oil seal 6 working environment of automobile half-axle 1 is comparatively severe, therefore the grease on the dust in air and semiaxis 1, by the semiaxis 1 that is attached in the A of gap, then damages sealing place of semiaxis 1 and outer oil seal 6.Therefore the working life of outer oil seal 6 is shorter; Need often to change; Or the material adopting anticorrosive wear resistance higher manufactures outer oil seal 6, therefore improve the material requirement manufacturing outer oil seal 6, add manufacture cost.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of outer oil seal structure for semifloating axle shaft assembly that can increase axle-shaft oil seal working life.
The utility model solves the technological scheme that its technical problem adopts: for the outer oil seal structure of semifloating axle shaft assembly, comprise semiaxis, half shaft bearing block, described semiaxis is arranged on half shaft bearing block by bearing;
For the outer oil seal structure of semifloating axle shaft assembly, also comprise semiaxis outer oil seal and semiaxis capsul; Described semiaxis one end is carry end, and the other end is connecting end;
Described semiaxis outer oil seal is sleeved on semiaxis, and between carry end and half shaft bearing block; Described semiaxis outer oil seal one end and half shaft bearing block are sealed and matched, and the other end is provided with dust-proof seam; Described semiaxis capsul is between semiaxis outer oil seal and the carry end of semiaxis; The carry end of described semiaxis capsul and semiaxis is sealed and matched; Dust-proof seam and the semiaxis capsul of described semiaxis outer oil seal are sealed and matched.
Further, the outer peripheral surface of the dust-proof seam of described semiaxis outer oil seal arranges annular groove; Described semiaxis capsul extends in annular groove and forms labyrinth sealing cooperation.
The beneficial effects of the utility model are: the outer oil seal structure for semifloating axle shaft assembly described in the utility model, by arranging semiaxis capsul, and arrange dust-proof seam on semiaxis outer oil seal, thus realize the gap between semiaxis and semiaxis outer oil seal to carry out airtight.Therefore semiaxis can be avoided at severe working environment, and the dust in grease and air is entered by the gap between semiaxis and semiaxis outer oil seal and destroys semiaxis outer oil seal.Therefore the outer oil seal structure for semifloating axle shaft assembly described in the utility model, can reduce the destruction of sand and dust for semiaxis outer oil seal, increases the working life of semiaxis outer oil seal.The requirement of semiaxis outer oil seal manufactured materials can be reduced, reduce manufacture cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the outer oil seal mounting structure of traditional semifloating axle shaft assembly;
Fig. 2 is the structural representation for the outer oil seal structure of semifloating axle shaft assembly in the utility model embodiment;
Fig. 3 is the close-up schematic view of B in Fig. 2;
Fig. 4 is the sectional drawing of semiaxis outer oil seal in the utility model embodiment;
Indicate in figure: 1-semiaxis, 11-carry end, 12-connecting end, 2-half shaft bearing block, 3-bearing, 4-semiaxis outer oil seal, the dust-proof seam of 41-, 42-annular groove, 5-semiaxis capsul, 6-outer oil seal.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figures 2 to 4, the outer oil seal structure for semifloating axle shaft assembly described in the utility model, comprises semiaxis 1, half shaft bearing block 2, and described semiaxis 1 is arranged on half shaft bearing block 2 by bearing 3;
For the outer oil seal structure of semifloating axle shaft assembly, also comprise semiaxis outer oil seal 4 and semiaxis capsul 5; Described semiaxis 1 one end is carry end 11, and the other end is connecting end 12;
Described semiaxis outer oil seal 4 is sleeved on semiaxis 1, and between carry end 11 and half shaft bearing block 2; Described semiaxis outer oil seal 4 one end and half shaft bearing block 2 are sealed and matched, and the other end is provided with dust-proof seam 41; Described semiaxis capsul 5 is between semiaxis outer oil seal 4 and the carry end 11 of semiaxis 1; Described semiaxis capsul 5 is sealed and matched with the carry end 11 of semiaxis 1; Dust-proof seam 41 and the semiaxis capsul 5 of described semiaxis outer oil seal 4 are sealed and matched.
Described semiaxis 1 one end is carry end 11 as shown in Figure 2, and the other end is connecting end 12; The major function of the carry end 11 of described semiaxis 1 is that carry tire is connected with tire.The major function of the connecting end 12 of described semiaxis 1 is to be in transmission connection with speed reducer, realizes speed reducer and inputs the power of semiaxis 1.
As shown in Figure 2, " being sealed and matched " during described semiaxis capsul 5 is sealed and matched with the carry end 11 of semiaxis 1 refers to that described semiaxis capsul 5 is connected with the carry end 11 of semiaxis 1, and semiaxis capsul 5 external dust and grease can be avoided to enter between semiaxis capsul 5 and semiaxis 1 cavity in.Described semiaxis capsul 5 and the carry end 11 of semiaxis 1 be sealed and matched directly semiaxis capsul 5 can be pressed on the carry end 11 of semiaxis 1 by bolt end face on realize.
During the dust-proof seam 41 of described semiaxis outer oil seal 4 is sealed and matched with semiaxis capsul 5 " being sealed and matched " refer to the dust-proof seam 41 of described semiaxis outer oil seal 4 with formed between semiaxis capsul 5 avoid external dust and grease to enter between semiaxis capsul 5 with semiaxis 1 cavity in coordinate.Dust-proof seam 41 and the semiaxis capsul 5 of described semiaxis outer oil seal 4 be sealed and matched can be wrapped in semiaxis outer oil seal 4 by semiaxis capsul 5 dust-proof seam 41 on realize with dust-proof seam 41 close contact of semiaxis outer oil seal 4.
Be illustrated in figure 1 the outer oil seal mounting structure of traditional semifloating axle shaft assembly, comprise outer oil seal 6, semiaxis 1, half shaft bearing block 2, bearing 3, described semiaxis 1 is arranged on half shaft bearing block 2 by bearing 3, and described outer oil seal 6 to be sleeved on semiaxis 1 and to be sealed and matched with half shaft bearing block 2; Gap A is there is between described semiaxis 1 and outer oil seal 6.The outer oil seal mounting structure of therefore traditional semifloating axle shaft assembly, in the process that semiaxis runs, because outer oil seal 6 working environment of automobile half-axle 1 is comparatively severe, grease on dust in air and semiaxis 1, by the semiaxis 1 that is attached in the A of gap, then damages sealing place of semiaxis 1 and outer oil seal 6.In the outer oil seal mounting structure of semifloating axle shaft assembly traditional in sum, the working life of outer oil seal 6 is shorter; Need often to change; Or the material adopting anticorrosive wear resistance higher manufactures outer oil seal 6, therefore improve the material requirement manufacturing outer oil seal 6, add manufacture cost.
If Fig. 2 is the outer oil seal structure for semifloating axle shaft assembly described in the utility model, because described semiaxis outer oil seal 4 is sleeved on semiaxis 1, and between carry end 11 and half shaft bearing block 2; Described semiaxis outer oil seal 4 one end and half shaft bearing block 2 are sealed and matched, and the other end is provided with dust-proof seam 41; Described semiaxis capsul 5 is between semiaxis outer oil seal 4 and the carry end 11 of semiaxis 1; Described semiaxis capsul 5 is sealed and matched with the carry end 11 of semiaxis 1; Dust-proof seam 41 and the semiaxis capsul 5 of described semiaxis outer oil seal 4 are sealed and matched.Therefore the outer surface that semiaxis 1 is positioned at gap A seals by semiaxis capsul 5 and dust-proof seam 41, dust and grease can not be attached to and be positioned on the semiaxis 1 of gap A; Thus avoiding semiaxis 1 in severe working environment, the dust in grease and air is entered by the gap between semiaxis 1 and semiaxis outer oil seal 4 and destroys semiaxis outer oil seal 4.
Outer oil seal structure for semifloating axle shaft assembly described in the utility model is relative to the outer oil seal mounting structure of traditional semifloating axle shaft assembly in sum, can reduce the destruction of sand and dust for semiaxis outer oil seal 4, increases the working life of semiaxis outer oil seal 4.The requirement that outer oil seal 4 manufactures material can be reduced simultaneously, reduce manufacture cost.
In order to simplified structure, improve the sealing effect to dust simultaneously, further, the outer peripheral surface of the dust-proof seam 41 of described semiaxis outer oil seal 4 arranges annular groove 42; Described semiaxis capsul 5 extends in annular groove 42 and forms labyrinth sealing cooperation.Adopt the mode that is sealed and matched between above-mentioned semiaxis outer oil seal 4 and semiaxis capsul 5, can rotate relative to semiaxis outer oil seal 4 at guarantee semiaxis capsul 5, when simplified structure, avoid occurring between semiaxis capsul 5 and semiaxis outer oil seal 4 wearing and tearing simultaneously, reduction of service life.
Claims (2)
1. for the outer oil seal structure of semifloating axle shaft assembly, comprise semiaxis (1), half shaft bearing block (2), described semiaxis (1) is arranged on half shaft bearing block (2) by bearing (3);
It is characterized in that: also comprise semiaxis outer oil seal (4) and semiaxis capsul (5); Described semiaxis (1) one end is carry end (11), and the other end is connecting end (12);
Described semiaxis outer oil seal (4) is sleeved on semiaxis (1), and is positioned between carry end (11) and half shaft bearing block (2); Described semiaxis outer oil seal (4) one end and half shaft bearing block (2) are sealed and matched, and the other end is provided with dust-proof seam (41); Described semiaxis capsul (5) is positioned between the carry end (11) of semiaxis outer oil seal (4) and semiaxis (1); Described semiaxis capsul (5) is sealed and matched with the carry end (11) of semiaxis (1); Dust-proof seam (41) and the semiaxis capsul (5) of described semiaxis outer oil seal (4) are sealed and matched.
2., as claimed in claim 1 for the outer oil seal structure of semifloating axle shaft assembly, it is characterized in that: the outer peripheral surface of the dust-proof seam (41) of described semiaxis outer oil seal (4) arranges annular groove (42); Described semiaxis capsul (5) extends in annular groove (42) and forms labyrinth sealing cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449406.8U CN204716981U (en) | 2015-06-26 | 2015-06-26 | For the outer oil seal structure of semifloating axle shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449406.8U CN204716981U (en) | 2015-06-26 | 2015-06-26 | For the outer oil seal structure of semifloating axle shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716981U true CN204716981U (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520449406.8U Active CN204716981U (en) | 2015-06-26 | 2015-06-26 | For the outer oil seal structure of semifloating axle shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716981U (en) |
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2015
- 2015-06-26 CN CN201520449406.8U patent/CN204716981U/en active Active
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