WO2017152647A1 - 上下分体式驾驶室隔声降噪结构及滑移装载机 - Google Patents

上下分体式驾驶室隔声降噪结构及滑移装载机 Download PDF

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Publication number
WO2017152647A1
WO2017152647A1 PCT/CN2016/105315 CN2016105315W WO2017152647A1 WO 2017152647 A1 WO2017152647 A1 WO 2017152647A1 CN 2016105315 W CN2016105315 W CN 2016105315W WO 2017152647 A1 WO2017152647 A1 WO 2017152647A1
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WO
WIPO (PCT)
Prior art keywords
plate
sealing plate
upper body
cab
sealing
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PCT/CN2016/105315
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English (en)
French (fr)
Inventor
赵斌
耿彦波
李萌
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徐工集团工程机械有限公司
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Application filed by 徐工集团工程机械有限公司 filed Critical 徐工集团工程机械有限公司
Priority to RU2018134164A priority Critical patent/RU2710418C1/ru
Publication of WO2017152647A1 publication Critical patent/WO2017152647A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0884—Insulating elements, e.g. for sound insulation for mounting around noise sources, e.g. air blowers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs

Definitions

  • the invention relates to the technical field of engineering machinery, in particular to an upper and lower split type cab noise reduction structure and a skid loader.
  • the skid steer loader is a multi-functional small-scale construction machine. Compared with the traditional loader, it has many features such as small overall size, high power density and many working conditions.
  • the whole vehicle adopts integral chassis structure, all-wheel drive, 360 degree in-situ steering can be realized by the difference of the running speed of the wheels on both sides, and various attachments can be quickly replaced or attached according to the needs of the job site to adapt to different working environments. .
  • the cab of the skid steer loader is mostly divided into upper and lower splits. Since the cab is not integral, the contact gap of the cab is large, and the seal is difficult, and the whole seal is Poor sex, so the dust inside the driver's cab and the driver's ear are louder, and the sliding loader's operating comfort is poor.
  • the object of the present invention is to provide an upper and lower split type cab noise reduction structure and a skid loader to improve the problem of large noise at the ear of the driver in the upper and lower split cabs as much as possible.
  • the present invention provides an upper and lower split type cab noise reduction structure
  • the cab includes an upper body and a lower body, the upper body is mounted on a chassis wall of the frame, and the lower body is located at the The lower side of the chassis enclosure
  • the upper and lower split cab noise reduction structure comprises a power cabin sealing plate, and the second side of the chassis enclosure is provided with a power cabin, and the power cabin sealing plate is used Separating the power cabin and the cab to reduce the transmission of noise generated by the power cabin to the cab.
  • the power cabin sealing plate includes a first sealing plate and two second sealing plates disposed between the power cabin and the lower body, the lower body including a rear sealing plate, and the two second seals
  • the plates are respectively disposed on two sides of the rear sealing plate, the first sealing plate is disposed under the rear sealing plate, the first sealing plate, the two second sealing plates, the rear sealing plate In close contact with the frame, to the opposite
  • the noise generated by the power cabin forms the first sound insulation structure.
  • the lower body further includes a front sealing plate, a left sealing plate, a right sealing plate and a lower sealing plate, the front sealing plate, the left sealing plate, the right sealing plate, the lower sealing plate and the
  • the rear sealing plates collectively form a top open box structure for providing the cab operator with a space for the foot and a second sound insulation structure for the noise generated by the power cabin.
  • an anechoic cavity is disposed under the second sound insulation structure, and the anechoic cavity is used to reduce noise generated by the power cabin.
  • the inner wall of the muffling chamber is provided with sound absorbing cotton.
  • the frame is provided with a front panel of the frame in front of the frame and a frame bottom plate at the bottom of the frame, the muffling cavity is formed by the lower sealing plate and the first sealing plate The frame front panel and the frame bottom panel are formed together.
  • the bottom of the upper body is provided with a sound insulation pad.
  • the bottom edge of the upper body is provided with an upper body side plate, the upper body side plate and the chassis surrounding plate are pressed into contact with each other, and the bottom of the upper body is further provided with an upper body bottom plate.
  • a body bottom plate is located inside the upper body, and a plane of the upper body bottom plate is higher than a contact plane of the upper body side plate and the chassis surrounding plate, and the power cabin sealing plate further comprises a connection to the chassis surrounding plate And a third sealing plate opposite to the upper body bottom plate, wherein the sound insulating pad is disposed in a gap formed between the upper body bottom plate and the third sealing plate.
  • the thickness of the sound insulating mat is greater than the height of the gap between the upper body bottom plate and the third sealing plate.
  • the upper body bottom plate has a convex shape, and the convex side of the upper body bottom plate is adjacent to the second sound insulation structure, and the upper side of the upper body bottom plate is provided with a seat. chair.
  • an edge of the convex side of the upper body bottom plate is provided with a bending plate bent toward the chassis surrounding plate, and the bending plate passes through a sealing strip and a support disposed on the chassis surrounding plate The board is sealed.
  • a reinforcing rib is disposed at the bottom of the third sealing plate to prevent the third sealing plate from being deformed by pressure.
  • the present invention also provides a skid steer loader comprising an upper and lower split type cab, wherein the upper and lower split type cab includes the above-mentioned upper and lower split type cab noise reduction structures.
  • the present invention provides a power cabin sealing plate and uses the power cabin sealing plate to isolate the power cabin and the cab, thereby improving the tightness of the cab, thereby reducing the noise of the power cabin to the inside of the cab, and driving The noise of the indoor driver's ear is reduced to meet the relevant noise detection standards.
  • the power compartment sealing plate effectively isolates the power cabin from the cab, and also reduces dust entering the lower body and upper body, improving the working environment and improving the operation comfort. Sex.
  • FIG. 1 is a schematic structural view of an embodiment of an upper and lower split type cab according to the present invention.
  • FIG. 2 is a schematic view showing a state in which an upper body and a lower body are separated in an embodiment of the upper and lower split type cab according to the present invention.
  • FIG 3 is a schematic structural view of an upper body in an embodiment of the upper and lower split type cab of the present invention.
  • FIG. 4 is a schematic structural view of an embodiment of an upper and lower split type cab noise reduction structure according to the present invention.
  • Figure 5 is a schematic view of the embodiment of Figure 4 taken along the A-A direction.
  • the present invention proposes an upper and lower split type cab noise reduction structure.
  • the upper and lower split type cab includes an upper body 1 and a lower body, and the upper body 1 is mounted on On the chassis enclosure 3 of the frame 2, the lower body is located on a lower side of the chassis enclosure 3, and the upper and lower split cab noise reduction structure comprises a power compartment sealing panel, and the chassis enclosure 3
  • the lower second side is provided with a power cabin for isolating the power cabin and the cab to reduce the transmission of noise generated by the power cabin to the cab.
  • the power cabin sealing plate is provided, and the power cabin sealing plate is used to isolate the power cabin and the cab, thereby improving the sealing performance of the cab to reduce the noise of the power cabin to the inside of the cab, so that the driver in the cab The noise at the ear is reduced to meet the relevant noise detection standards.
  • the power cabin sealing plate effectively isolates the power cabin from the cab, and also reduces dust entering the lower body and upper body, improving the working environment and improving the operating comfort.
  • the power cabin sealing plate includes a first sealing plate 21 and two second sealing plates 20 disposed between the power cabin and the lower body.
  • the lower body includes a rear sealing plate 11 , and the two second sealing plates 20 are respectively disposed at two sides of the rear sealing plate 11 , and the first sealing plate 21 is disposed below the rear sealing plate 11 .
  • the first sealing plate 21, the two second sealing plates 20, and the rear sealing plate 11 are in close contact with the frame 2 to form a first sound insulating structure with noise generated by the power cabin.
  • the first sound insulation structure substantially forms a closed wall between the power cabin and the lower body, and the first sealing plate 21, the two second sealing plates 20 and the rear sealing plate 11 can be reasonably arranged according to the structure of the frame 2.
  • the shape of the first sealing plate 21, the two second sealing plates 20, and the rear sealing plate 11 can also be flexibly selected according to actual conditions, as long as it can form a closed wall together with the frame 2 to isolate the power compartment and the lower body.
  • the first sound insulation structure is capable of isolating dust while being soundproof.
  • both of the second sealing plates 20 are L-shaped, which is more advantageous for simple modification according to the existing structure, and the sealing effect is better.
  • the lower body further includes a front sealing plate 13, a left sealing plate 12, a right sealing plate 14, and a lower sealing plate 15, the front sealing plate 13, the left sealing plate 12, the right sealing plate 14, and the
  • the sealing plate 15 and the rear sealing plate 11 together form a top open box structure for providing a cab operator with a space for the foot to improve the comfort of the operator, and the cabinet structure can also be
  • the noise generated by the power cabin forms a second sound insulation structure to further isolate the noise of the power cabin and reduce the noise around the driver's ear.
  • an anechoic chamber may be disposed under the second sound insulation structure, and the anechoic chamber is used to reduce noise generated by the power cabin.
  • the anechoic chamber can be a separately arranged independent anechoic chamber, or can be realized by adding a baffle by utilizing a part of the existing structure of the cab lower body itself.
  • the inner wall of the muffler chamber may also be provided with sound absorbing cotton to further reduce noise pollution generated by the power cabin.
  • the anechoic chamber is formed by a combination of baffles.
  • the frame 2 is provided with a frame front panel 16 at the front of the frame 2 and a frame bottom plate 17 at the bottom of the frame 2, and the anechoic chamber is provided by the lower sealing plate 15
  • the first sealing plate 21, the frame front plate 16 and the frame bottom plate 17 are formed together.
  • This structure utilizes the existing frame front panel 16 of the frame 2, the frame bottom plate 17 and the lower sealing plate 15 of the lower body, and is formed by the aforementioned first sealing plate 21 for isolating the power compartment and the lower body.
  • the structure of the acoustic cavity is easy to reconstruct and the effect is remarkable.
  • the bottom of the upper body 1 is further provided with a sound insulating mat 19.
  • the sound insulation mat 19 can be used to prevent the noise of the power cabin from being transmitted directly to the upper body 1 above the power cabin.
  • the material of the sound insulation mat 19 is relatively flexible, for example, a flexible material having a good sound insulation effect can be selected.
  • the bottom edge of the upper body 1 is provided with an upper body side plate 7, and the upper body side plate 7 and the chassis surrounding plate 3 are pressed into contact with each other, and the bottom of the upper body 1 is further provided.
  • the upper body bottom plate 4 is located inside the upper body 1, and the upper body bottom plate 4 is located higher than the contact plane of the upper body side plate 7 and the chassis surrounding plate 3.
  • the setting has at least two advantages: one is when the upper body 1 is lowered, the upper The body side panel 7 can be in direct contact with the chassis panel 3, and the middle position of the bottom of the upper body 1 is not in contact with the lower body or the frame 2 to avoid multiple contacts between the upper body 1 and the frame 2 or the lower body.
  • the plane increases the probability of creating a gap between the contact faces, so that the upper body 1 cannot be completely flattened, and the sealing effect is poor.
  • the upper body bottom plate 4 is higher than the upper body side plate 7, the upper body bottom plate 4 and the chassis are surrounded. Between the planes of the plates 3, there is a space that can be used to install the sound insulating mats 19, which can also achieve sound insulation while achieving a sealing effect.
  • the power cabin sealing plate further includes a third sealing plate 18 connected to the chassis surrounding plate 3 and opposite to the upper body bottom plate 4, and the sound insulating pad 19 is disposed on the upper body bottom plate 4 And a gap formed between the third sealing plate 18.
  • the thickness of the sound insulating mat 19 is greater than the height of the gap between the upper body bottom plate 4 and the third sealing plate 18.
  • the sound insulating mat 19 may be adhered to the upper body bottom plate 4 or may be adhered to the third sealing plate 18, which may be determined by the convenience of operation according to actual conditions.
  • the sound insulating mat 19 is adhered to the third sealing plate 18, which makes it easier to stick the sound insulating mat 19, and can make the covering area of the sound insulating mat 18 relatively larger, and the sealing effect is better.
  • the upper body bottom plate 4 may have a convex shape as a whole, and the convex side of the upper body bottom plate 4 is adjacent to the second track.
  • the acoustic structure is provided with a seat 5 above the convex side of the upper body bottom plate 4.
  • the edge of the convex side of the upper body bottom plate 4 is provided with a bending plate 6 bent toward the chassis surrounding plate 3, and the bending plate 6 passes
  • the sealant strip is sealingly connected to the support plate 10 disposed on the chassis enclosure 3.
  • the edge of the support plate 10 is respectively connected to the rear sealing plate 11 and the chassis surrounding plate 3 of the lower body.
  • the supporting plate 10 can be disposed in a U shape to cooperate with the upper body bottom plate 4 having a convex shape, and the sealing rubber strip can be engaged. At the bottom of the bent plate 6.
  • a reinforcing rib is disposed at the bottom of the third sealing plate 18 to prevent the third sealing plate 18 from being deformed by pressure.
  • the upper and lower split type cab noise reduction structure in the above embodiments provided by the present invention can be applied to various construction machines having an upper body split type cab, and is particularly suitable for a skid steer loader.
  • the cab of the skid steer loader is of an upper and lower split structure, and the upper body 1 can be turned up to facilitate maintenance of the lower body or the frame 2.
  • the cab of the skid steer loader is located at the front of the vehicle, is mounted on the chassis coaming 3 above the vehicle frame 2, and can be turned over to be separated from the vehicle chassis, thereby driving The components in the power cabin below the chamber are installed and maintained.
  • the cab structure mainly comprises an upper body 1 and a lower body
  • the upper body 1 mainly comprises an upper body bottom plate 4, a seat 5, a bent plate 6, an upper body side plate 7, a window 8 and a door 9
  • the lower body mainly comprises a U-shaped support plate 10 Rear sealing plate 11.
  • the door 9 is located at the front of the upper body 1
  • the window 8 is located at two sides of the upper body 1
  • the seat 5 is located at the rear portion, and is mounted on the upper body bottom plate 4, and the inner side edge of the upper body bottom plate 4 is designed with a bending plate 6
  • the upper side edge of the upper body skeleton is provided with an upper body side plate 7.
  • the third sealing plate 18 is provided with a reinforcing rib plate and is mounted on the chassis surrounding plate 3 and the supporting plate 10 by bolts to facilitate disassembly during maintenance of the power cabin; the elastic sound insulating pad 19 is a flexible elastic material with good sound insulation effect. And mounted on the third sealing plate 18 by gluing, the shape area of which is substantially the same as that of the third sealing plate 18; the L-shaped second sealing plate 20 and the first sealing plate 21 are respectively mounted on the rear sealing of the lower body by bolts
  • the two sides of the plate 11 and below, specifically, the second sealing plate 20 are mounted on the rear sealing plate 11, the frame 2 and the two first sealing plates 21 to ensure close contact between the four.
  • Corresponding circular holes may be formed in the first sealing plate 21 for the pipe connection of the hydraulic components below the lower sealing plate 15 of the lower body, and the round holes and the pipes are well sealed.
  • the upper body side plate 7 is pressed into contact with the chassis surrounding plate 3, and the bending plate 6 with the rubber sealing strip is pressed into contact with the U-shaped supporting plate 10 to form a contact sealing ring;
  • the bottom plate 4 is pressed into contact with the elastic sound insulation pad 19 adhered to the third sealing plate 18 to form a three-layer sealed sound insulation structure, which increases the sealing contact between the upper body 1 and the lower body, and the three-layer sealed sound insulation structure is more than
  • Some single-layer bottom plates can better isolate the external noise transmission of the power cabin;
  • U-shaped support plate 10, rear sealing plate 11, left sealing plate 12, front sealing plate 13, right sealing plate 14 and lower sealing plate 15 Connected to each other and connected by bolts, mounted on the frame 2, the second sealing plate 20, the first sealing plate 21, the rear sealing plate 11 and the frame 2 form a first sound insulation structure of the lower body, and the lower body left sealing plate 12.
  • the lower body front sealing plate 13, the lower body right sealing plate 14, and the lower body lower sealing plate 15 form a second sound insulating structure of the lower body, and the lower sealing plate 15, the frame front plate 16, the frame bottom plate 17, and the first sealing plate 21 and the frame 2 on both sides form a muffler cavity, which has good isolation for power cabin noise and dust. .
  • the upper and lower split type cab noise reduction structure and the skid loader embodiment of the present invention are not Change the overall structural form, without affecting the assembly and maintenance of the vehicle, achieve a good seal between the upper and lower splits, and set up two isolation seal structures at the bottom of the lower body of the cab, and also have a muffler cavity structure to make the whole The noise and dust inside the cab are effectively isolated to improve the driver's operating comfort.
  • the upper and lower split type cab noise reduction structure provided by the invention has the advantages of simple structure and easy processing and manufacturing, and the application of the test on the physical vehicle can find that the noise of the cab can be reduced by more than 5dBA, thereby effectively improving the working environment inside the cab. .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

一种上下分体式驾驶室隔声降噪结构及滑移装载机，该上下分体式驾驶室隔声降噪结构包括上体(1)和下体，上体(1)安装在车架(2)的底盘围板(3)上，下体位于底盘围板(3)的下方第一侧，上下分体式驾驶室隔声降噪结构还包括动力舱密封板，该动力舱密封板设置于下体和位于底盘围板(3)的下方第二侧的动力舱之间，并用于隔离动力舱和下体，以减少动力舱所产生的噪声向下体和上体(1)的传递。通过设置动力舱密封板，并利用该动力舱密封板来隔离动力舱和驾驶室，提高驾驶室的密封性，以减少动力舱的噪声向驾驶室内部传递，使驾驶室内司机耳旁的噪声降低，以符合相关的噪声检测标准；同时还可以减少进入下体和上体(1)的灰尘，改善工作环境，提高操作舒适性。

Description

上下分体式驾驶室隔声降噪结构及滑移装载机 技术领域
本发明涉及工程机械技术领域，尤其涉及一种上下分体式驾驶室隔声降噪结构及滑移装载机。
背景技术
滑移装载机是一种多功能小型工程机械，相对于传统装载机具有整机外形尺寸小、功率密度大、作业工况多等多项特点。整车采用整体式底盘结构，全轮驱动，通过两侧车轮的行驶速度差可以实现360度原地转向，可根据作业现场的需要快速更换或挂接各种属具，以适应不同的作业环境。
考虑到整车加工成本，同时为便于装配和维护，目前滑移装载机的驾驶室多采用上下分体式，由于驾驶室不是整体的，使得驾驶室的接触缝隙较多，密封较难，整体密封性较差，因此驾驶室内灰尘和司机耳旁噪音较大，滑移装载机的操作舒适性较差。
发明内容
本发明的目的是提出一种上下分体式驾驶室隔声降噪结构及滑移装载机，以尽可能地改善上下分体式驾驶室内司机耳旁噪声较大的问题。
为实现上述目的，本发明提供了一种上下分体式驾驶室隔声降噪结构，该驾驶室包括上体和下体，所述上体安装在车架的底盘围板上，所述下体位于所述底盘围板的下方第一侧，所述上下分体式驾驶室隔声降噪结构包括动力舱密封板，所述底盘围板的下方第二侧设有动力舱，所述动力舱密封板用于隔离所述动力舱和所述驾驶室，以减少所述动力舱所产生的噪声向所述驾驶室的传递。
进一步地，所述动力舱密封板包括设置于所述动力舱与所述下体之间的第一密封板和两个第二密封板，所述下体包括后密封板，所述两个第二密封板分别设置于所述后密封板的两侧，所述第一密封板设置于所述后密封板的下方，所述第一密封板、所述两个第二密封板、所述后密封板与所述车架紧密接触，以对所 述动力舱产生的噪声形成第一道隔声结构。
进一步地，所述下体还包括前密封板、左密封板、右密封板和下密封板，所述前密封板、所述左密封板、所述右密封板、所述下密封板和所述后密封板共同形成顶部开口的箱体结构，用于为驾驶室操作人员提供放脚的空间，并对所述动力舱产生的噪声形成第二道隔声结构。
进一步地，所述第二道隔声结构下方设有消声腔，所述消声腔用于降低所述动力舱产生的噪声。
进一步地，所述消声腔的内壁设有吸音棉。
进一步地，所述车架上设有位于所述车架前方的车架前板和位于所述车架底部的车架底板，所述消声腔由所述下密封板、所述第一密封板、所述车架前板和所述车架底板共同形成。
进一步地，所述上体的底部设有隔声垫。
进一步地，所述上体的底部边缘设有上体侧板，所述上体侧板与所述底盘围板相互接触压紧，所述上体的底部还设有上体底板，所述上体底板位于所述上体内部，且所述上体底板所在平面高于所述上体侧板与所述底盘围板的接触平面，所述动力舱密封板还包括连接在所述底盘围板上且与所述上体底板相对的第三密封板，所述隔声垫设置于所述上体底板和所述第三密封板之间所形成的间隙内。
进一步地，所述隔声垫的厚度大于所述上体底板和所述第三密封板之间间隙的高度。
进一步地，所述上体底板的整体呈凸字形，所述上体底板的凸形边一侧靠近所述第二道隔声结构，所述上体底板的凸形边一侧上方设有座椅。
进一步地，所述上体底板的凸形边一侧的边缘设有弯向所述底盘围板的折弯板，所述折弯板通过密封胶条与设置于所述底盘围板上的支撑板密封连接。
进一步地，所述第三密封板底部设有加强筋，以防止所述第三密封板受压变形。
为实现上述目的，本发明还提供了一种滑移装载机，包括上下分体式驾驶室，所述上下分体式驾驶室包括上述的上下分体式驾驶室隔声降噪结构。
基于上述技术方案，本发明通过设置动力舱密封板，并利用该动力舱密封板来隔离动力舱和驾驶室，提高驾驶室的密封性，以减少动力舱的噪声向驾驶室内部传递，使驾驶室内司机耳旁的噪声降低，以符合相关的噪声检测标准；同时，该动力舱密封板将动力舱和驾驶室有效隔离，还可以减少进入下体和上体的灰尘，改善工作环境，提高操作舒适性。
附图说明
图1为本发明上下分体式驾驶室一个实施例的结构示意图。
图2为本发明上下分体式驾驶室一个实施例中上体和下体分离时的状态示意图。
图3为本发明上下分体式驾驶室一个实施例中上体的结构示意图。
图4为本发明上下分体式驾驶室隔声降噪结构一个实施例的结构示意图。
图5为图4实施例沿A-A方向的示意图。
图中：1-上体，2-车架，3-底盘围板，4-上体底板，5-座椅，6-折弯板，7-上体侧板，8-窗户，9-门，10-支撑板，11-后密封板，12-左密封板，13-前密封板，14-右密封板，15-下密封板，16-车架前板，17-车架底板，18-第三密封板，19-隔声垫，20-第二密封板，21-第一密封板。
具体实施方式
下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。
在本发明的描述中，需要理解的是，术语“中心”、“横向”、“纵向”、“前”、“后”、“左”、“右”、“上”、“下”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明保护范围的限制。
为了解决现有技术中上下分体式驾驶室的密封效果较差，司机耳旁噪声较大的问题，本发明提出一种上下分体式驾驶室隔声降噪结构。
参考图1～图5，上下分体式驾驶室包括上体1和下体，所述上体1安装在 车架2的底盘围板3上，所述下体位于所述底盘围板3的下方第一侧，所述上下分体式驾驶室隔声降噪结构包括动力舱密封板，所述底盘围板3的下方第二侧设有动力舱，所述动力舱密封板用于隔离所述动力舱和所述驾驶室，以减少所述动力舱所产生的噪声向所述驾驶室的传递。
上述实施例中，通过设置动力舱密封板，并利用该动力舱密封板来隔离动力舱和驾驶室，提高驾驶室的密封性，以减少动力舱的噪声向驾驶室内部传递，使驾驶室内司机耳旁的噪声降低，以符合相关的噪声检测标准；同时，该动力舱密封板将动力舱和驾驶室有效隔离，还可以减少进入下体和上体的灰尘，改善工作环境，提高操作舒适性。
在本发明一个示意性的实施例中，如图5所示，所述动力舱密封板包括设置于所述动力舱与所述下体之间的第一密封板21和两个第二密封板20，所述下体包括后密封板11，所述两个第二密封板20分别设置于所述后密封板11的两侧，所述第一密封板21设置于所述后密封板11的下方，所述第一密封板21、所述两个第二密封板20、所述后密封板11与所述车架2紧密接触，以对所述动力舱产生的噪声形成第一道隔声结构。
第一道隔声结构实质上是在动力舱和下体之间形成了一道封闭墙，第一密封板21、两个第二密封板20和后密封板11可以根据车架2的结构进行合理布置，第一密封板21、两个第二密封板20和后密封板11的形状也可以根据实际情况灵活选择，只要能够与车架2一起组成一道能够隔离动力舱和下体的封闭墙即可，第一道隔声结构在隔声的同时，还能够隔离灰尘。在如图5所示的实施例中，两个第二密封板20均呈L型，这种形状更有利于根据已有结构进行简单改造，并且密封效果更好。
进一步地，所述下体还包括前密封板13、左密封板12、右密封板14和下密封板15，所述前密封板13、所述左密封板12、所述右密封板14、所述下密封板15和所述后密封板11共同形成顶部开口的箱体结构，用于为驾驶室操作人员提供放脚的空间，提升操作人员的舒适感，并且该箱体结构还能够对所述动力舱产生的噪声形成第二道隔声结构，以对动力舱的噪声进行进一步的隔离，降低司机耳旁的噪声。
更进一步地，所述第二道隔声结构下方还可以设置消声腔，所述消声腔用于降低所述动力舱产生的噪声。消声腔可以是专门设置的独立的封闭的消声腔，也可以为利用驾驶室下体本身已有的部分结构，通过增设挡板来实现。
所述消声腔的内壁还可以设置吸音棉，以进一步地降低动力舱所产生的噪声污染。
在如图4所示的实施例中，消声腔即是通过挡板组合而成。具体来说，所述车架2上设有位于所述车架2前方的车架前板16和位于所述车架2底部的车架底板17，所述消声腔由所述下密封板15、所述第一密封板21、所述车架前板16和所述车架底板17共同形成。这种结构利用车架2已有的车架前板16、车架底板17以及下体的下密封板15，通过前述设置的用于隔离动力舱和下体的第一密封板21，来共同形成消声腔结构，改造方便，效果显著。
另外，所述上体1的底部还设有隔声垫19。隔声垫19可以用来防止动力舱的噪声在动力舱上方直接传至上体1。隔声垫19的选材比较灵活，比如可以选用具有良好隔声效果的柔性材料。
如图3所示，所述上体1的底部边缘设有上体侧板7，所述上体侧板7与所述底盘围板3相互接触压紧，所述上体1的底部还设有上体底板4，所述上体底板4位于所述上体1内部，且所述上体底板4所在平面高于所述上体侧板7与所述底盘围板3的接触平面。
将所述上体底板4所在平面设置为高于所述上体侧板7与所述底盘围板3的接触平面，这样设置至少有两个好处：一是当将上体1放下时，上体侧板7可以与底盘围板3直接接触，而上体1的底部的中间位置则不与下体或者车架2接触，以避免上体1与车架2或下体之间由于有多个接触平面而增加在接触面之间产生缝隙的几率，使上体1无法完全放平，密封效果差；二是由于上体底板4高于上体侧板7，因此在上体底板4与底盘围板3所在平面之间，就存在一个可以用来安设隔声垫19的空间，在实现密封效果的同时还可以起到隔声作用。
具体地，所述动力舱密封板还包括连接在所述底盘围板3上且与所述上体底板4相对的第三密封板18，所述隔声垫19设置于所述上体底板4和所述第三密封板18之间所形成的间隙内。
在一个实施例中，所述隔声垫19的厚度大于所述上体底板4和所述第三密封板18之间间隙的高度。这样设置的好处是可以确保上体1放下时，隔声垫19处于被压紧状态，以增加上体1和第三密封板18之间的接触密封性，从而增强驾驶室的上体1和动力舱之间的隔离效果。
隔声垫19可以粘在上体底板4上，也可以粘在第三密封板18上，具体可根据实际情况由操作的方便性来决定。优选地，隔声垫19粘在第三密封板18上，这样更加便于隔声垫19的粘贴，并且可以使隔声垫18的覆盖范围相对大一些，密封效果更好。
另外，如图3所示，考虑到座椅5的形状和安装，所述上体底板4的整体可以呈凸字形，所述上体底板4的凸形边一侧靠近所述第二道隔声结构，所述上体底板4的凸形边一侧上方设有座椅5。
为了实现上体底板4与下体之间的密封，所述上体底板4的凸形边一侧的边缘设有弯向所述底盘围板3的折弯板6，所述折弯板6通过密封胶条与设置于所述底盘围板3上的支撑板10密封连接。其中，支撑板10的边缘分别与下体的后密封板11和底盘围板3连接，支撑板10可以设置为U型，以与呈凸字形的上体底板4相互配合，密封胶条可以卡接在折弯板6的底部。
所述第三密封板18底部设有加强筋，以防止所述第三密封板18受压变形。
本发明所提供的上述各实施例中的上下分体式驾驶室隔声降噪结构可以应用于各种具有上体分体式驾驶室的工程机械上，尤其适用于滑移装载机。
如图1和图2所示，该滑移装载机的驾驶室为上下分体式结构，上体1可以上翻，以便于实现对下体或车架2的维护。
下面结合附图1～5对本发明上下分体式驾驶室隔声降噪结构及滑移装载机的一个实施例的具体结构进行详细说明：
如图1和图2所示，该滑移装载机的驾驶室位于整车前部，安装在整车车架2上方的底盘围板3上，并可以翻转，与车辆底盘分离，从而对驾驶室下方的动力舱内零部件进行安装和维护。
驾驶室结构主要包括上体1和下体，上体1主要包括上体底板4、座椅5、折弯板6、上体侧板7、窗户8和门9，下体主要包括U型支撑板10、后密封板 11、左密封板12、前密封板13、右密封板14和下密封板15。其中，门9位于上体1的前部，窗户8位于上体1的两侧，座椅5位于后部，安装在上体底板4上，上体底板4的内侧边缘设计有折弯板6，上体骨架的底部边缘设有上体侧板7。
第三密封板18设有加强筋板，并通过螺栓安装在底盘围板3和支撑板10上，便于动力舱维护时的拆卸；弹性的隔声垫19为具有良好隔声效果的柔性弹性材料，并通过胶粘方式安装在第三密封板18上，其形状面积和第三密封板18基本相同；L形的第二密封板20和第一密封板21通过螺栓分别安装在下体的后密封板11两侧和下方，具体地，第二密封板20安装在后密封板11、车架2和两个第一密封板21上，保证四者之间紧密接触。第一密封板21上可以设置相应的圆孔，用于下体的下密封板15下方液压部件的管道连接，圆孔与管道之间进行良好密封。
上体1和下体闭合时，上体侧板7与底盘围板3压紧接触，安装有橡胶密封胶条的折弯板6与U型支撑板10压紧接触，形成接触密封圈；上体底板4与粘贴在第三密封板18上的弹性隔声垫19压紧接触，形成三层密封隔声结构，增加上体1和下体之间的密封接触，且三层密封隔声结构比现有的单层底板可以更好地隔离动力舱内部噪声向外的透射；U型支撑板10、后密封板11、左密封板12、前密封板13、右密封板14和下密封板15之间相互连接，并通过螺栓连接，安装在车架2上，第二密封板20、第一密封板21、后密封板11和车架2形成下体的第一道隔声结构，下体左密封板12、下体前密封板13、下体右密封板14和下体下密封板15形成下体的第二道隔声结构，且下密封板15、车架前板16、车架底板17和第一密封板21以及两侧的车架2形成消声腔，对动力舱噪声及灰尘具有很好的隔离作用。
通过对本发明上下分体式驾驶室隔声降噪结构及滑移装载机的多个实施例的说明，可以看到本发明上下分体式驾驶室隔声降噪结构及滑移装载机实施例在不改变总体结构形式，不影响车辆装配和维护的同时，实现上下分体之间实现良好的密封，并在驾驶室下体的底部设置了两道隔离密封结构，并且还设有消声腔结构，使整个驾驶室内部的噪声和灰尘都得到有效隔离，有效改善驾驶员的操作舒适性。
本发明所提供的上下分体式驾驶室隔声降噪结构的结构简单，易于加工制造，通过在实体车辆上的应用试验，发现驾驶室的噪声可以下降5dBA以上，有效改善驾驶室内部的工作环境。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (13)

  1. 一种上下分体式驾驶室隔声降噪结构，其特征在于，包括上体(1)和下体，所述上体(1)安装在车架(2)的底盘围板(3)上，所述下体位于所述底盘围板(3)的下方第一侧，所述上下分体式驾驶室隔声降噪结构包括动力舱密封板，所述底盘围板(3)的下方第二侧设有动力舱，所述动力舱密封板用于隔离所述动力舱和所述驾驶室，以减少所述动力舱所产生的噪声向所述驾驶室的传递。
  2. 根据权利要求1所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述动力舱密封板包括设置于所述动力舱与所述下体之间的第一密封板(21)和两个第二密封板(20)，所述下体包括后密封板(11)，所述两个第二密封板(20)分别设置于所述后密封板(11)的两侧，所述第一密封板(21)设置于所述后密封板(11)的下方，所述第一密封板(21)、所述两个第二密封板(20)、所述后密封板(11)与所述车架(2)紧密接触，以对所述动力舱产生的噪声形成第一道隔声结构。
  3. 根据权利要求2所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述下体还包括前密封板(13)、左密封板(12)、右密封板(14)和下密封板(15)，所述前密封板(13)、所述左密封板(12)、所述右密封板(14)、所述下密封板(15)和所述后密封板(11)共同形成顶部开口的箱体结构，用于为驾驶室操作人员提供放脚的空间，并对所述动力舱产生的噪声形成第二道隔声结构。
  4. 根据权利要求3所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述第二道隔声结构下方设有消声腔，所述消声腔用于降低所述动力舱产生的噪声。
  5. 根据权利要求4所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述消声腔的内壁设有吸音棉。
  6. 根据权利要求4所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述车架(2)上设有位于所述车架(2)前方的车架前板(16)和位于所述车架(2)底部的车架底板(17)，所述消声腔由所述下密封板(15)、所述第一密封板(21)、所述车架前板(16)和所述车架底板(17)共同形成。
  7. 根据权利要求3所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述 上体(1)的底部设有隔声垫(19)。
  8. 根据权利要求7所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述上体(1)的底部边缘设有上体侧板(7)，所述上体侧板(7)与所述底盘围板(3)相互接触压紧，所述上体(1)的底部还设有上体底板(4)，所述上体底板(4)位于所述上体(1)内部，且所述上体底板(4)所在平面高于所述上体侧板(7)与所述底盘围板(3)的接触平面，所述动力舱密封板还包括连接在所述底盘围板(3)上且与所述上体底板(4)相对的第三密封板(18)，所述隔声垫(19)设置于所述上体底板(4)和所述第三密封板(18)之间所形成的间隙内。
  9. 根据权利要求8所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述隔声垫(19)的厚度大于所述上体底板(4)和所述第三密封板(18)之间间隙的高度。
  10. 根据权利要求8所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述上体底板(4)的整体呈凸字形，所述上体底板(4)的凸形边一侧靠近所述第二道隔声结构，所述上体底板(4)的凸形边一侧上方设有座椅(5)。
  11. 根据权利要求10所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述上体底板(4)的凸形边一侧的边缘设有弯向所述底盘围板(3)的折弯板(6)，所述折弯板(6)通过密封胶条与设置于所述底盘围板(3)上的支撑板(10)密封连接。
  12. 根据权利要求8所述的上下分体式驾驶室隔声降噪结构，其特征在于，所述第三密封板(18)底部设有加强筋，以防止所述第三密封板(18)受压变形。
  13. 一种滑移装载机，其特征在于，包括上下分体式驾驶室，所述上下分体式驾驶室包括如权利要求1～12任一项所述的上下分体式驾驶室隔声降噪结构。
PCT/CN2016/105315 2016-03-08 2016-11-10 上下分体式驾驶室隔声降噪结构及滑移装载机 WO2017152647A1 (zh)

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