CN209870289U - Noise reduction sealing mechanism for steering system of cab - Google Patents
Noise reduction sealing mechanism for steering system of cab Download PDFInfo
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- CN209870289U CN209870289U CN201920657116.0U CN201920657116U CN209870289U CN 209870289 U CN209870289 U CN 209870289U CN 201920657116 U CN201920657116 U CN 201920657116U CN 209870289 U CN209870289 U CN 209870289U
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- sealing sheath
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- outer sealing
- cab
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Abstract
The utility model relates to a technical field of making an uproar falls in the car seal, concretely relates to sealing mechanism of making an uproar falls in driver's cabin a steering system. The noise reduction sealing mechanism of the steering system of the cab comprises: the double-layer sealing mechanism comprises an outer sealing sheath and an inner sealing sheath; the inner part of the outer sealing sheath is hollow to form a first movable cavity; the second end of the inner sealing sheath is connected with the second end of the outer sealing sheath, the inner part of the inner sealing sheath is hollow to form a second movable cavity, and the second movable cavity extends into the first movable cavity of the outer sealing sheath; the inner wall of the first end of the inner sealing sheath is provided with a self-lubricating bearing; the steering column assembly sequentially penetrates through the first movable cavity and the self-lubricating bearing at the first end of the inner sealing sheath from the first end of the outer sealing sheath and finally penetrates out of the second end of the outer sealing sheath and the second end of the inner sealing sheath; the first end of the outer sealing sheath is arranged on the steering column assembly.
Description
Technical Field
The utility model relates to a technical field of making an uproar falls in the car seal, concretely relates to sealing mechanism of making an uproar falls in driver's cabin a steering system.
Background
In a steering system in the field of commercial vehicles, a steering column penetrates through a cab to be connected with a steering engine outside the cab, and a floor hole is inevitably reserved in the cab, so that the floor hole sealing structure not only has the functions of dust prevention, sealing and matching with the movement of the steering column, but also has a great effect on reducing noise and improving driving comfort.
At present, in order to meet the use requirements, the traditional cab floor hole sealing structure is mainly used by matching a rubber sleeve and a hoop, but the traditional cab floor hole sealing structure only has the functions of dust prevention and sealing and has small contribution degree in the aspect of noise isolation.
Disclosure of Invention
In order to solve the deficiencies existing in the prior art, the utility model provides a sealing mechanism that makes an uproar falls in driver's cabin a steering system.
According to the utility model provides a technical scheme, a sealing mechanism of making an uproar falls in driver's cabin a steering system, the sealing mechanism of making an uproar falls in driver's cabin a steering system includes:
the double-layer sealing mechanism comprises an outer sealing sheath and an inner sealing sheath; the inner part of the outer sealing sheath is hollow to form a first movable cavity; the second end of the inner sealing sheath is connected with the second end of the outer sealing sheath, the inner part of the inner sealing sheath is hollow to form a second movable cavity, and the second movable cavity extends into the first movable cavity of the outer sealing sheath; the inner wall of the first end of the inner sealing sheath is provided with a self-lubricating bearing;
the steering column assembly sequentially penetrates through the first movable cavity and the self-lubricating bearing at the first end of the inner sealing sheath from the first end of the outer sealing sheath and finally penetrates out of the second end of the outer sealing sheath and the second end of the inner sealing sheath; the first end of the outer sealing sheath is arranged on the steering column assembly, and a first bearing is arranged between the outer sealing sheath and the steering column assembly.
Further, the side wall of the outer sealing sheath is of a corrugated structure or an undulating wave structure.
Further, the whole external sealing sheath is conical, and the caliber of the external sealing sheath gradually shrinks from the second end to the first end of the external sealing sheath.
Further, the side wall of the inner sealing sheath is of a corrugated structure or an undulating wave structure.
Further, the inner sealing sheath is conical as a whole, and the caliber of the inner sealing sheath gradually shrinks from the second end to the first end of the inner sealing sheath.
Further, the second end of the outer sealing jacket extends outwards along the radial direction to form an outer sealing skirt.
Further, an inner sealing skirt is formed on the second end of the inner sealing sheath and extends outwards along the radial direction of the inner sealing sheath; a pressure plate and a fastener connect the outer and inner sealing skirts together.
From the foregoing, the utility model provides a sealing mechanism of making an uproar falls in driver's cabin a steering system, compare with prior art and possess following advantage: the double-layer sealing mechanism can reliably play a role in sealing, sound insulation and noise reduction. Self-lubricating plastic bearing can compactly laminate steering column and strengthen the noise isolation effect, and the self-lubricating effect can satisfy the demand of rotating, sliding from top to bottom for the steering column.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
1. The automobile steering wheel comprises a fastener, 2 a pressure plate, 3 an inner sealing protective sleeve, 310 a second movable cavity, 320 an inner sealing skirt, 4 an outer sealing protective sleeve, 410 a first movable cavity, 420 an outer sealing skirt, 5 a cab floor, 6 a welding nut, 7 a self-lubricating bearing, 8 a steering column assembly, 9 a support ring and 10 a clamping belt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings. The terms "inner" and "outer" are used to refer to directions toward and away from, respectively, the geometric center of a particular component.
General driver's cabin floor 5 is last to have seted up the floor hole, as shown in fig. 1, the utility model provides a driver's cabin a steering system sealing mechanism that makes an uproar falls includes:
and the steering column assembly 8 penetrates through the floor hole, one end of the steering column assembly 8 is used for connecting a steering wheel, and the other end of the steering column assembly 8 is used for connecting a steering gear, so that the steering gear is driven to realize steering.
Double-deck sealing mechanism, double-deck sealing mechanism cover is established outside the steering column assembly 8, double-deck sealing mechanism includes:
the outer sealing sheath 4 is hollow inside to form a first movable cavity 410, the first end of the outer sealing sheath 4 is clamped on a support ring 9 through a clamping band 10, and a first bearing is arranged between the support ring 9 and the steering column assembly 8;
interior seal sheath 3, the second end of interior seal sheath 3 pass through clamp plate 2, fastening bolt 1 and weld nut 6 with the second end of external seal sheath 4 is connected, and the inside cavity of interior seal sheath 3 forms second activity chamber 310, and second activity chamber 310 stretches into in the first activity chamber 410 of external seal sheath 4, be equipped with self-lubricating bearing 7 on the first end inner wall of interior seal sheath 3, self-lubricating bearing 7 laminating cover is established on the steering column assembly 8 outer wall. The steering column assembly 8 sequentially penetrates through the first movable cavity 410 and the first end of the inner sealing sheath 3 from the first end of the outer sealing sheath 4, and finally penetrates out from the second end of the outer sealing sheath 4 and the second end of the inner sealing sheath 3, and a sealed space is formed between the inner wall of the outer sealing sheath 4 and the outer wall of the inner sealing sheath 3.
It is understood that the double-layer sealing mechanism can reliably play a role in sealing sound insulation and noise reduction. Self-lubricating plastic bearing can compactly laminate steering column and strengthen the noise isolation effect, and the self-lubricating effect can satisfy the demand of rotating, sliding from top to bottom for the steering column.
In order to avoid the obstruction of the double-layer sealing mechanism to the steering of the steering column assembly 8 and adapt to the change of the steering column position caused by the position adjustment of the steering wheel, the side wall of the outer sealing sheath 4 is of a corrugated structure or a wavy wave structure, and the corrugated structure or the wavy wave structure is used for improving the elasticity of the expansion and deformation of the outer sealing sheath 4 while the sealing is not affected, so that the change of the steering column position caused by the overturning of a cab and the position adjustment of the steering wheel is met. The outer sealing sheath 4 is integrally conical, and the caliber of the outer sealing sheath 4 gradually shrinks from the second end to the first end; the outer sealing jacket 4 of the structure is designed so as not to affect the flexibility of movement of the steering column assembly 8.
Similarly, in order to avoid the obstruction of the double-layer sealing mechanism to the steering of the steering column assembly 8 and adapt to the change of the steering column position caused by the adjustment of the steering wheel position, the side wall of the inner sealing sheath 3 is of a corrugated structure or a wavy wave structure, and the corrugated structure or the wavy wave structure is used for improving the elasticity of the expansion and the deformation of the inner sealing sheath 3 without affecting the sealing, so that the change of the steering column position caused by the overturn of the cab and the adjustment of the steering wheel position is met. The inner sealing sheath 3 is conical as a whole, and the caliber of the inner sealing sheath 3 gradually shrinks from the second end to the first end; the inner sealing boot 3 of the structure is designed so as not to interfere with the flexibility of movement of the steering column assembly 8.
In order to further improve the sealing and sound insulation effects, the second ends of the outer sealing sheath 4 and the inner sealing sheath 3 respectively extend outwards along the respective radial directions to form an outer sealing skirt 420 and an inner sealing skirt 320, and when the inner sealing skirt 320 and the outer sealing skirt 420 are connected together, the inner sealing skirt 320 and the outer sealing skirt 420 are sleeved outside a floor hole of the cab floor 5 together, so that a gap is formed between the floor hole and the double-layer sealing mechanism, and sound leakage is prevented.
Those of ordinary skill in the art will understand that: the above description is only for the specific embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A noise-reducing sealing mechanism for a steering system of a cab, comprising:
the double-layer sealing mechanism comprises an outer sealing sheath (4) and an inner sealing sheath (3); the inner part of the outer sealing jacket (4) is hollow to form a first movable cavity (410); the second end of the inner sealing sheath (3) is connected with the second end of the outer sealing sheath (4), the inner part of the inner sealing sheath (3) is hollow to form a second movable cavity (310), and the second movable cavity (310) extends into the first movable cavity (410) of the outer sealing sheath (4); a self-lubricating bearing (7) is arranged on the inner wall of the first end of the inner sealing sheath (3);
the steering column assembly (8) sequentially penetrates through the first movable cavity (410) and the self-lubricating bearing (7) at the first end of the inner sealing sheath (3) from the first end of the outer sealing sheath (4), and finally penetrates out of the second end of the outer sealing sheath (4) and the second end of the inner sealing sheath (3); the first end of the outer sealing sheath (4) is arranged on the steering column assembly (8), and a first bearing is arranged between the outer sealing sheath and the steering column assembly (8).
2. A noise reducing sealing mechanism for a steering system of a cab as claimed in claim 1, wherein the side wall of the outer sealing sheath (4) is of a corrugated or undulating wave structure.
3. A noise reduction sealing mechanism for a steering system of a cab as claimed in claim 1 or 2, wherein the outer sealing sheath (4) is generally conical, and the caliber of the outer sealing sheath (4) gradually shrinks from the second end to the first end thereof.
4. A noise reducing sealing mechanism for a steering system of a cab as claimed in claim 1, wherein the side wall of the inner sealing sheath (3) is of a corrugated or undulating wave structure.
5. A noise reducing sealing mechanism for a steering system of a cab as claimed in claim 1 or 4, wherein the inner sealing sheath (3) is generally conical and the bore of the inner sealing sheath (3) tapers from the second end to the first end thereof.
6. A noise reducing sealing mechanism for a steering system of a cab as claimed in claim 1, wherein the second end of the outer sealing jacket (4) extends radially outwardly therefrom to form an outer sealing skirt (420).
7. A noise reducing sealing mechanism for a steering system of a cab as claimed in claim 6, wherein the second end of the inner sealing sheath (3) is formed with an inner sealing skirt (320) extending radially outwardly therefrom; a pressure plate (2) and fasteners connect the outer sealing skirt (420) and the inner sealing skirt (320) together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920657116.0U CN209870289U (en) | 2019-05-08 | 2019-05-08 | Noise reduction sealing mechanism for steering system of cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920657116.0U CN209870289U (en) | 2019-05-08 | 2019-05-08 | Noise reduction sealing mechanism for steering system of cab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209870289U true CN209870289U (en) | 2019-12-31 |
Family
ID=68965036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920657116.0U Active CN209870289U (en) | 2019-05-08 | 2019-05-08 | Noise reduction sealing mechanism for steering system of cab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209870289U (en) |
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2019
- 2019-05-08 CN CN201920657116.0U patent/CN209870289U/en active Active
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