CN213358757U - Loader cab frame structure - Google Patents
Loader cab frame structure Download PDFInfo
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- CN213358757U CN213358757U CN202021784455.4U CN202021784455U CN213358757U CN 213358757 U CN213358757 U CN 213358757U CN 202021784455 U CN202021784455 U CN 202021784455U CN 213358757 U CN213358757 U CN 213358757U
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- sound insulation
- connecting end
- insulation mechanism
- upright post
- sound
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Abstract
The utility model discloses a loader cab frame structure, belonging to the technical field of loader cabs, comprising a front wall panel, a rear wall panel, a column A, a column B and a top frame, wherein the column A and the column B are both hollow tube structures; the sound insulation device comprises an A upright post, a B upright post, an A sound insulation layer, a sound insulation layer and a sound insulation layer, wherein the two ends of the A upright post are respectively provided with an A connecting end, the two ends of the B upright post are respectively provided with a B connecting end, an A sound insulation mechanism is arranged in the A connecting end and comprises an A steel plate, and the A sound insulation layer is arranged above the; be provided with B noise insulation mechanism in the B link, B noise insulation mechanism includes the B steel sheet, and the top of B steel sheet is provided with the B puigging. The utility model discloses improve the stand structure of present loader driver's cabin frame, cut off the route that the sound propagated, avoid the noise to pass into the driver's cabin, influence driver and crew, promote the leakproofness and the NVH performance of driver's cabin, guarantee driver and crew's the travelling comfort of taking.
Description
Technical Field
The utility model relates to a loader driver's cabin technical field, concretely relates to loader driver's cabin frame construction.
Background
The internal noise of the cab of the construction machine can be classified into structural noise and air noise according to the difference of propagation paths. The structural noise refers to the sound wave of the noise outside the cab and the radiation noise generated by the vibration source vibrating the wall plate, and the air noise refers to the transmission sound generated by the noise source outside the cab and directly transmitted into the cab by taking the air as a propagation path (such as a small hole, a gap and the like).
The both ends of driver's cabin A stand and B stand of present loader all are in open state, and engine noise, road surface noise and pneumatic noise etc. directly transmit inside the driver's cabin through the mounting hole on the stand through the open port gap in stand both ends, again, cause very big influence to driver and crew, consequently need design a driver's cabin stand structure that can effectively block noise propagation way, can promote the leakproofness and the NVH performance of driver's cabin simultaneously, guarantee driver and crew's riding comfort.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a loader cab frame structure; this loader driver's cabin frame construction improves the stand structure of present loader driver's cabin frame, cuts off the route that the sound propagated, avoids the noise to pass into the driver's cabin, influences driver and crew, promotes the leakproofness and the NVH performance of driver's cabin, guarantees driver and crew's the travelling comfort of taking.
In order to solve the technical problem, the utility model provides a loader cab frame structure, which comprises a front coaming, a rear coaming, an A column, a B column and a top frame, wherein the A column and the B column are both hollow tube structures; the sound insulation device comprises an A upright post, a B upright post, an A sound insulation layer, a sound insulation layer and a sound insulation layer, wherein the two ends of the A upright post are respectively provided with an A connecting end, the two ends of the B upright post are respectively provided with a B connecting end, an A sound insulation mechanism is arranged in the A connecting end and comprises an A steel plate, and the A sound insulation layer is arranged above the; be provided with B noise insulation mechanism in the B link, B noise insulation mechanism includes the B steel sheet, and the top of B steel sheet is provided with the B puigging.
In the further improvement of the utility model, the connecting end A comprises an upper connecting end A and a lower connecting end A, and the sound insulation mechanism A comprises an upper sound insulation mechanism A and a lower sound insulation mechanism A;
an upper sound insulation mechanism A is arranged in the upper connecting end A, the upper sound insulation mechanism A comprises an upper steel plate A arranged at the bottom of the upper connecting end A, and an upper sound insulation layer A is arranged above the upper steel plate A;
a lower sound insulation mechanism is arranged in the lower connecting end of the A, the lower sound insulation mechanism of the A comprises a lower steel plate arranged at the bottom of the lower connecting end of the A, and a lower sound insulation layer of the A is arranged above the lower steel plate of the A.
Through the design, sound separation can be better carried out at the two ends of the stand column A in the scheme.
The utility model discloses in the further improvement, the outer wall of link and the front end welding of top frame on the above-mentioned A, the outer wall of link and the rear end welding of preceding bounding wall under the A.
Through above-mentioned design, this scheme A stand can be more convenient for be connected with top frame and dash panel.
The utility model discloses in the further improvement, link and A lower link integrated into one piece make on above-mentioned A stand, A.
Through the design, the use strength of the stand column A can be stronger, and the service life can be prolonged.
In the further improvement of the utility model, the B connecting end comprises an upper B connecting end and a lower B connecting end, and the B sound insulation mechanism comprises an upper B sound insulation mechanism and a lower B sound insulation mechanism;
an upper B sound insulation mechanism is arranged in the upper B connecting end and comprises an upper B steel plate arranged at the bottom of the upper B connecting end, and an upper B sound insulation layer is arranged above the upper B steel plate;
be provided with sound-proof mechanism under B in the B lower clutch, sound-proof mechanism is provided with sound-proof layer under B including setting up the steel sheet under B of link bottom under B, and the top of steel sheet is provided with sound-proof layer under B.
Through the design, sound separation can be better carried out at the two ends of the stand column B.
The utility model discloses in the further improvement, the outer wall of link and the rear end welding of top frame on the above-mentioned B, the outer wall of link and the front end welding of back panel under the B.
Through the design, the upright post B can be more conveniently connected with the top frame and the back panel.
The utility model discloses in the further improvement, link integrated into one piece makes under link and the B on above-mentioned B stand, B.
Through the design, the use strength of the stand column B can be stronger, and the service life can be prolonged.
The utility model discloses in the further improvement, above-mentioned A puigging and B puigging all adopt two component polyurethane foam.
The material A and the material B of the double-component polyurethane foam material can be quickly reacted, foamed and molded under a certain mixing proportion, and when the double-component polyurethane foam material is applied to cavity sealing, airflow can be effectively blocked, air transmission is inhibited, and the sound insulation and noise reduction performance of the whole vehicle is improved; when a channel is blocked, the double-component polyurethane foam material has a porous sound-absorbing internal structure, so that sound wave energy is greatly absorbed and attenuated, and compared with the traditional laminated rubber plate, the sound pressure can be reduced by 3-5 dB.
The double-component polyurethane foaming material is foamed plastic which is prepared by A, B2 components through accurate measurement, even mixing during spraying, and generating through complex chemical reaction and physical change and can be firmly adhered to the surface of an object to be coated; foaming of two-component polyurethane: the filling effect of the inner cavity is better, the foaming is uniform and compact, the filling device is suitable for plugging various cavities of a cab, a special die is not needed for processing and manufacturing, and the glue injection amount can be adjusted randomly along with the shape and size of the cavity.
The double-component polyurethane foam material has the advantages that the original volume is small, the expanded foam material is in the same shape as a hollow structure of a connecting end of an A, B stand column and can be firmly clamped in the middle of an inner channel of the connecting end of the A, B stand column, and the characteristic is particularly practical for stand columns with complex shapes.
In the further improvement of the utility model, soundproof cotton is attached to the inner wall of the stand A and the inner wall of the stand B.
Through the design, the scheme can better enhance the sound insulation effect of the tube wall of the A stand column and the tube wall of the B stand column, and further obstruct noise from entering a cab.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses improve the stand structure of present loader driver's cabin frame, add sound insulation mechanism in the open department of A stand port and the open department of B stand port, cut off the route of sound propagation, avoid the noise to pass into the driver's cabin, influence driver and crew, promote the leakproofness and the NVH performance of driver and crew, guarantee driver and crew's travelling comfort of taking.
Drawings
To more clearly illustrate the background art or the technical solution of the present invention, the drawings used in conjunction with the prior art or the detailed description are briefly described below; obviously, the structure, proportion, size, etc. shown in the drawings are only used for matching with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structure, change of the proportion relation or adjustment of the size should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the upper sound insulation mechanism of the present invention a.
Fig. 3 is the structural schematic diagram of the lower sound insulation mechanism of the utility model a.
Fig. 4 is a schematic structural view of the upper sound-insulating mechanism of the utility model B.
Fig. 5 is a schematic structural view of the lower sound insulation mechanism of the present invention B.
Shown in the figure: 1-a dash panel; 2-back boarding; 3-a top frame; 4-A upright post; 41-A upper connecting end; 42-A lower connection end; 5-B upright post; 51-B upper connection end; 52-B lower connection end; 53-B upright post mounting holes; 6-A, steel plate application; 7-A, arranging a sound insulation layer; 8-A lower steel plate; 9-A lower sound insulation layer; 10-B, steel plates are arranged; 11-B, an upper sound insulation layer; 12-B lower steel plate; 13-B lower sound insulation layer.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention shall fall within the protection scope of the present invention, and meanwhile, the terms such as "upper", "lower", "front", "rear", "middle", etc. cited in the present specification shall be understood only for convenience of description, and are not intended to limit the scope of the present invention which can be implemented, and the relative relationship changes or adjustments thereof, without substantial changes in technical content, the scope of the present invention should also be considered as the following implementable claims.
As shown in fig. 1-5, a loader cab frame structure includes a front dash panel 1, a back dash panel 2, an a pillar 4, a B pillar 5, and a top frame 3, where the a pillar 4 and the B pillar 5 are both hollow tube structures; the two ends of the A upright post 4 are respectively provided with an A connecting end, the two ends of the B upright post 5 are respectively provided with a B connecting end, an A sound insulation mechanism is arranged in the A connecting end and comprises an A steel plate, and an A sound insulation layer is arranged above the A steel plate; be provided with B noise insulation mechanism in the B link, B noise insulation mechanism includes the B steel sheet, and the top of B steel sheet is provided with the B puigging.
The A connecting end comprises an A upper connecting end 41 and an A lower connecting end 42, and the A sound insulation mechanism comprises an A upper sound insulation mechanism and an A lower sound insulation mechanism; an upper sound insulation mechanism A is arranged in the upper connecting end A, the upper sound insulation mechanism A comprises an upper steel plate A6 arranged at the bottom of the upper connecting end A41, and an upper sound insulation layer A7 is arranged above the upper steel plate A6; a lower sound insulation mechanism is arranged in the A lower connecting end 42 and comprises a lower A steel plate 8 arranged at the bottom of the A lower connecting end 42, and a lower A sound insulation layer 9 is arranged above the lower A steel plate 8.
The outer wall of the upper connecting end 41A is welded with the front end of the top frame 3, and the outer wall of the lower connecting end 42A is welded with the rear end of the front coaming 1; the A upright post 4, the A upper connecting end 41 and the A lower connecting end 42 are manufactured in an integrated forming mode.
The B connecting end comprises an upper B connecting end 51 and a lower B connecting end 52, and the B sound insulation mechanism comprises an upper B sound insulation mechanism and a lower B sound insulation mechanism; an upper B sound insulation mechanism is arranged in the upper B connecting end 51, the upper B sound insulation mechanism comprises an upper B steel plate 10 arranged at the bottom of the upper B connecting end 51, and an upper B sound insulation layer 11 is arranged above the upper B steel plate 10; a lower sound insulation mechanism B is arranged in the lower B connecting end 52 and comprises a lower B steel plate 12 arranged at the bottom of the lower B connecting end 52, and a lower B sound insulation layer 13 is arranged above the lower B steel plate 12.
The outer wall of the B upper connecting end 51 is welded with the rear end of the top frame 3, and the outer wall of the B lower connecting end 52 is welded with the front end of the back panel 2; the B upright post 5, the B upper connecting end 51 and the B lower connecting end 52 are manufactured in an integrated mode.
The sound insulation layer A and the sound insulation layer B both adopt bi-component polyurethane foam materials; soundproof cotton is attached to the inner wall of the upright post A and the inner wall of the upright post B.
The both ends of driver's cabin A stand and B stand of present loader all are in open state, do not have any shelter from the thing, engine noise, road surface noise and pneumatic noise etc. directly transmit inside the driver's cabin through the open port gap in stand both ends, through the mounting hole on the stand again, cause very big influence to driver and crew, consequently the design concept of this scheme is exactly the structure of improvement stand, set up noise insulation mechanism at the both ends of stand, the entering route of cutting off the noise avoids getting into the driver's cabin, influence the crew of taking.
At present, both ends of a column of a cab A, B are in an open state, and a plurality of functional holes are arranged on a A, B column, such as mounting holes (such as a B column mounting hole 53) of a hinge mounting hole, a threading hole and the like, and some mounting holes are communicated with a cab cavity, so that some sound can be transmitted to the interior of the column through a port of the A, B column which is open up and down, and then transmitted to the cab through the mounting holes on the column.
In addition, the design thought of this scheme is thought to be gone, and the design of this scheme separation mechanism also can be used for the pipe support that the port such as crossbeam, longeron of driver's cabin is open state.
This driver's cabin frame simple structure easily realizes, and the inside barrier material of A stand and the B stand of driver's cabin frame can effectively prevent the transmission of outside air current and sound, can promote the leakproofness and the NVH performance of driver's cabin simultaneously, guarantees driver and crew's the travelling comfort of taking.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A loader cab frame structure comprises a front coaming, a rear coaming, an A upright post, a B upright post and a top frame, wherein the A upright post and the B upright post are both of hollow tube structures; the both ends of A stand are provided with the A link respectively, the both ends of B stand are provided with B link, its characterized in that respectively: the A sound insulation mechanism is arranged in the A connecting end and comprises an A steel plate, and an A sound insulation layer is arranged above the A steel plate; be provided with B noise insulation mechanism in the B link, B noise insulation mechanism includes the B steel sheet, and the top of B steel sheet is provided with the B puigging.
2. The loader cab frame structure of claim 1, wherein: the A connecting end comprises an A upper connecting end and an A lower connecting end, and the A sound insulation mechanism comprises an A upper sound insulation mechanism and an A lower sound insulation mechanism;
an upper sound insulation mechanism A is arranged in the upper connecting end A, the upper sound insulation mechanism A comprises an upper steel plate A arranged at the bottom of the upper connecting end A, and an upper sound insulation layer A is arranged above the upper steel plate A;
a lower sound insulation mechanism is arranged in the lower connecting end of the A, the lower sound insulation mechanism of the A comprises a lower steel plate arranged at the bottom of the lower connecting end of the A, and a lower sound insulation layer of the A is arranged above the lower steel plate of the A.
3. The loader cab frame structure of claim 2, wherein: the outer wall of the upper connecting end A is welded with the front end of the top frame, and the outer wall of the lower connecting end A is welded with the rear end of the front wall plate.
4. The loader cab frame structure of claim 3, wherein: the upright post A, the upper connecting end A and the lower connecting end A are integrally formed.
5. The loader cab frame structure of claim 1, wherein: the B connecting end comprises an upper B connecting end and a lower B connecting end, and the B sound insulation mechanism comprises an upper B sound insulation mechanism and a lower B sound insulation mechanism;
an upper B sound insulation mechanism is arranged in the upper B connecting end and comprises an upper B steel plate arranged at the bottom of the upper B connecting end, and an upper B sound insulation layer is arranged above the upper B steel plate;
be provided with sound-proof mechanism under B in the B lower clutch, sound-proof mechanism is provided with sound-proof layer under B including setting up the steel sheet under B of link bottom under B, and the top of steel sheet is provided with sound-proof layer under B.
6. The loader cab frame structure of claim 5, wherein: the outer wall of the upper connecting end of the B is welded with the rear end of the top frame, and the outer wall of the lower connecting end of the B is welded with the front end of the back panel.
7. The loader cab frame structure of claim 6, wherein: and the upright column B, the upper connecting end B and the lower connecting end B are integrally formed.
8. The loader cab frame structure of claim 1, wherein: and the sound insulation layer A and the sound insulation layer B both adopt bi-component polyurethane foam materials.
9. The loader cab frame structure of claim 1, wherein: soundproof cotton is attached to the inner wall of the upright post A and the inner wall of the upright post B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021784455.4U CN213358757U (en) | 2020-08-21 | 2020-08-21 | Loader cab frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021784455.4U CN213358757U (en) | 2020-08-21 | 2020-08-21 | Loader cab frame structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213358757U true CN213358757U (en) | 2021-06-04 |
Family
ID=76147335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021784455.4U Active CN213358757U (en) | 2020-08-21 | 2020-08-21 | Loader cab frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213358757U (en) |
-
2020
- 2020-08-21 CN CN202021784455.4U patent/CN213358757U/en active Active
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