CN203651942U - Floating front overhang swing arm assembly of cab - Google Patents
Floating front overhang swing arm assembly of cab Download PDFInfo
- Publication number
- CN203651942U CN203651942U CN201320806358.4U CN201320806358U CN203651942U CN 203651942 U CN203651942 U CN 203651942U CN 201320806358 U CN201320806358 U CN 201320806358U CN 203651942 U CN203651942 U CN 203651942U
- Authority
- CN
- China
- Prior art keywords
- fixed
- shock absorber
- front overhang
- arm assembly
- swing arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007667 floating Methods 0.000 title claims abstract description 15
- 239000006096 absorbing agent Substances 0.000 claims abstract description 31
- 230000035939 shock Effects 0.000 claims abstract description 31
- 230000007704 transition Effects 0.000 claims abstract description 6
- 230000007306 turnover Effects 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims description 26
- 239000004677 Nylon Substances 0.000 claims description 12
- 229920001778 nylon Polymers 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 238000010073 coating (rubber) Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 239000004519 grease Substances 0.000 abstract description 6
- 238000005461 lubrication Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000017105 transposition Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Abstract
The utility model relates to a floating front overhang swing arm assembly of a cab. The floating front overhang swing arm assembly of the cab comprises two swing arms, a turnover shaft, circular holes I formed in the front ends of the swing arms and circular holes II formed in the rear ends of the swing arms 1. Front overhang front linings are fixed into the circular holes I. Front overhang rear linings are fixed into the circular holes II. A front overhang swing arm support is fixed to a center shaft through a front overhang arm transition support. An upper shock absorber support is fixed to a shaft. The upper end and the lower end of a shock absorber are fixed to the upper shock absorber support and a lower shock absorber support respectively. The displacement (particularly angular displacement) of the cab relative to the swing arm assembly is offset by rubber deformation of rubber sleeves in the front overhang front linings and rubber blocks in the front overhang rear linings rather than by pin-hole relative rotation in a pin-hole matching mode commonly used in the prior art. According to the structure, moving parts in clearance fit do not exist, the probability of abrasion generated by system relative movement is greatly lowered, noise caused by friction and collision between a pin and a hole is lowered at the same time, and the requirement for grease lubrication between the pin and the hole is canceled.
Description
Technical field
The utility model relates to truck technical field, is specifically related to a kind of cabin front suspension.
Background technology
At present domestic and in the world most medium-heavy automobile cabin front suspension swing arm assembly adopt fixed type, trip shaft is Forging Parts-round steel, trip shaft is connected with left/right swing arm employing welding manner.Operator's compartment and front boom assembly often utilize the form of bearing pin.Because this structure does not exist free-running fit movement parts, therefore system's relative motion produces wearing and tearing greatly, and operation process noise is high, also needs regularly to the position grease up of finding time.
Summary of the invention
The utility model, in order to overcome the deficiency of above technology, provides a kind of unsteady installing type, maintaining convenience, service-strong floating type cab front suspension swinging arm assembly.
The utility model overcomes the technical scheme that its technical matters adopts:
This floating type cab front suspension swinging arm assembly, comprise two swing arms, trip shaft, be arranged at the circular hole of swing arm front end, be arranged at the circular hole II of swing arm 1 rear end, front overhang front lining is fixed in circular hole I, front overhang back bush is fixed in circular hole II, described front overhang front lining comprises the body skin matching with circular hole I internal diameter, be arranged at the axle in body skin and be fixed on body skin and axle between rubber coating, described front overhang back bush comprises the housing matching with circular hole II internal diameter, be arranged at the center shaft in housing and be fixed on inner walls and center shaft between rubber block, front suspension swinging arm support is fixed on center shaft by front boom transition bracket, shock absorber upper bracket is fixed on axle, the upper and lower two ends of shock absorber are individually fixed on shock absorber upper bracket and lower support of shock absorber.
In order to make mechanics superior performance, it is leg-of-mutton plug that the two ends of above-mentioned trip shaft are provided with cross-sectional plane, in described swing arm, be provided with leg-of-mutton jack, the internal diameter size of described jack and the outside dimension of described plug match, described two swing arms are plugged in respectively the two ends of trip shaft 2, in described plug, be provided with slot, the plug that two external diameters are greater than slot internal diameter press-fits in the slot at trip shaft 2 two ends by interference fit.
In order to protect the above-mentioned swing arm of shock absorber below to be provided with the projection of outwardly convex; the top of described lower support of shock absorber is provided with nylon spacer, and before shock absorber is compressed to allowed minimum length, projection contacts with nylon spacer; after driver's cab turnover puts in place, projection contacts with nylon spacer.
In order to improve intensity, in the rubber block in above-mentioned front overhang back bush, clamp the metal sheet that is fixed with circular arc.
In order to prevent the extrusion capacity in rubber process of press in, on above-mentioned body skin, be provided with vertically opening I.
In order to improve intensity, in the rubber coating in above-mentioned front overhang front lining, clamp the becket that is fixed with annular arrangement, on described becket, be provided with vertically opening II.
In order to improve safety, above-mentioned front suspension swinging arm support is that sheet metal bending forms its three side sealing and closes, its excess-three face opening.
The beneficial effects of the utility model are: the rubber deformation that operator's compartment all passes through the rubber block in rubber coating and the front overhang back bush in front overhang front lining with respect to the displacement (especially referring to angular transposition) of cantilever assembly is offset, instead of adopt conventional pin-hole fit form in the past---by pin-hole relatively rotate offset.There is not free-running fit movement parts in this structure, the chance that system's relative motion produces wearing and tearing reduces greatly, reduced mill between pin-hole simultaneously and touched noise, and the requirement of write off hole grease lubrication, reduces later stage lubricating grease maintenance requirement.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is cabin front suspension assembling side elevation;
Fig. 3 is cabin front suspension assembling front view;
Fig. 4 is front overhang front lining structural representation;
Fig. 5 is front overhang back bush structural representation;
Fig. 6 is trip shaft structural representation;
Fig. 7 is front suspension swinging arm supporting structure schematic diagram;
In figure, 1. swing arm 2. trip shaft 2.1 plug 3. front overhang front lining 3.1 body skin 3.2 axle 3.3 rubber coating 3.4 opening I 3.5 becket 3.6 opening II 4. front overhang back bush 4.1 housing 4.2 center shaft 4.3 rubber block 4.4 metal sheet 5. projection 6. plug 7. front suspension swinging arm support 8. front boom transition bracket 9. shock absorber upper bracket 10. shock absorber 11. lower support of shock absorber 12. nylon spacers.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 to accompanying drawing 7, the utility model is described further.
As shown in Figures 1 and 2, this floating type cab front suspension swinging arm assembly, comprise two swing arms 1, trip shaft 2, be arranged at the circular hole I of swing arm 1 front end, be arranged at the circular hole II of swing arm 1 rear end, front overhang front lining 3 is fixed in circular hole I, front overhang back bush 4 is fixed in circular hole II, front overhang front lining 3 comprises the body skin 3.1 matching with circular hole I internal diameter, be arranged at the axle 3.2 in body skin 3.1 and be fixed on body skin 3.1 and axle 3.2 between rubber coating 3.3, front overhang back bush 4 comprises the housing 4.1 matching with circular hole II internal diameter, be arranged at the center shaft 4.2 in housing 4.1 and be fixed on the rubber block 4.3 between housing 4.1 inwalls and center shaft 4.2, front suspension swinging arm support 7 is fixed on center shaft 4.2 by front boom transition bracket 8, shock absorber upper bracket 9 is fixed on axle 3.2, upper shock absorber is individually fixed on shock absorber upper bracket 9 and lower support of shock absorber 11 at two ends Shang Xia 10.The mode that front overhang back bush 4 adopts rubber not exclusively to fill, meets that operator's compartment travels and switching process rotational displacement requirement, ensures vertical direction radial rigidity simultaneously, compares other parts with oad and has the advantages that quality is light.The rubber deformation that operator's compartment all passes through the rubber block in rubber coating and the front overhang back bush 4 in front overhang front lining 3 with respect to the displacement (especially referring to angular transposition) of cantilever 1 assembly is offset, instead of adopts conventional pin-hole fit form in the past---by pin-hole relatively rotate offset.There is not free-running fit movement parts in this structure, the chance that system's relative motion produces wearing and tearing reduces greatly, reduced mill between pin-hole simultaneously and touched noise, cancels the requirement of hole grease lubrication, reduces later stage lubricating grease maintenance requirement.
As shown in Figure 5, clamp the metal sheet 4.4 that is fixed with circular arc in the rubber block 4.3 in front overhang back bush 4, metal sheet 4.4 can strengthen the intensity of rubber block 4.3, improves reliability of service.As shown in Figure 4, in rubber coating 3.3 in front overhang front lining 3, clamp the becket 3.5 that is fixed with annular arrangement, on becket 3.5, be provided with vertically opening II 3.6, on housing 3.1, be provided with vertically opening I 3.4, the interior fixing metal ring 3.5 of rubber coating 3.3 can improve the intensity of becket 3.5, on housing 3.1, be provided with vertically on opening I 3.4 and becket 3.5 and be provided with vertically opening II 3.6, opening can reduce front overhang front lining and be press fit into the extrusion capacity of rubber in swing arm front end circular hole I process herein, rubber coating after guarantee simultaneously press-fits radially, axial in-use performance.
To be provided with cross-sectional plane be leg-of-mutton plug 2.1 at the two ends of above-mentioned trip shaft 2 as shown in Figure 6, in swing arm 1, be provided with leg-of-mutton jack, the outside dimension of the internal diameter size of jack and plug 2.1 matches, two swing arms 1 are plugged in respectively the two ends of trip shaft 2, in plug 2.1, be provided with slot, the plug 6 that two external diameters are greater than slot internal diameter press-fits in the slot at trip shaft 2 two ends by interference fit.Make the thickness of pipe at plug 2.1 positions at the trip shaft 2 two ends generation thrust that changes by being pressed into plug 6, trip shaft is pressed into the certain withdrawal force of rear guarantee, meets anti-torsion performance simultaneously.The welding method that current most cabin front suspension swing arm assembly adopts, has unrelieved stress to exist after welding, under the higher condition of carbon content, easily crack, and controls not in placely in welding process, easily produces pore, slag inclusion, lack of penetration defect.Therefore by adopting cold shaping technology, mechanical property is superior, does not have above defect.
As shown in accompanying drawing 1 and accompanying drawing 3, above-mentioned swing arm 1 below is provided with the projection 5 of outwardly convex, the top of lower support of shock absorber 11 is provided with nylon spacer 12, before shock absorber 10 is compressed to allowed minimum length, projection 5 contacts with nylon spacer 12, after driver's cab turnover puts in place, projection 5 contacts with nylon spacer 12.Vehicle Driving Cycle process cabin front suspension swing arm assembly is beated in vertical direction certain limit with operator's compartment; when Vehicle Driving Cycle is during on severe road surface; operator's compartment will increase at the jerk value of vertical direction; when the displacement of jumping under operator's compartment reaches certain numerical value; the projection 5 of swing arm 1 below contacts with the nylon spacer 12 on lower support of shock absorber 11; therefore stop operator's compartment to continue to move down, prevent that numerical value that operator's compartment moves down from exceeding the stroke of shock absorber 10, played the effect of protection shock absorber 10.Angle displacement occurs front overhang front lining 3 in driver's cab turnover process in swing arm 1 changes, after operator's compartment turns over and puts in place completely, projection 5 under swing arm 1 contacts with the nylon spacer 12 on lower support of shock absorber 11, has reduced shock absorber 10 bearing loads, improves its service life.
As shown in Figure 7; front suspension swinging arm support 7 closes for sheet metal bending forms its three side sealing; the version of its excess-three face opening; because it possesses the ability that absorbs expansion energy generation crumple distortion; therefore in the time bumping; swing arm rear end front boom transition bracket 8 deforms; this floating type cab front suspension swinging arm assembly together with operator's compartment with respect to travel direction; operator's compartment entirety will move backward; reduce operator's compartment distortion possibility; ensure that as far as possible operator's compartment does not deform, protect the living space of chief aviation pilot and copilot, play a protective role.
Claims (7)
1. a floating type cab front suspension swinging arm assembly, it is characterized in that: comprise two swing arms (1), trip shaft (2), be arranged at the circular hole I of swing arm (1) front end, be arranged at the circular hole II of swing arm (1) rear end, front overhang front lining (3) is fixed in circular hole I, front overhang back bush (4) is fixed in circular hole II, described front overhang front lining (3) comprises the body skin (3.1) matching with circular hole I internal diameter, be arranged at the axle (3.2) in body skin (3.1) and be fixed on body skin (3.1) and axle (3.2) between rubber coating (3.3), described front overhang back bush (4) comprises the housing (4.1) matching with circular hole II internal diameter, be arranged at the center shaft (4.2) in housing (4.1) and be fixed on housing (4.1) inwall and center shaft (4.2) between rubber block (4.3), front suspension swinging arm support (7) is fixed on center shaft (4.2) by front boom transition bracket (8), shock absorber upper bracket (9) is fixed on axle (3.2), the upper and lower two ends of shock absorber (10) are individually fixed on shock absorber upper bracket (9) and lower support of shock absorber (11).
2. floating type cab front suspension swinging arm assembly according to claim 1, it is characterized in that: it is leg-of-mutton plug (2.1) that the two ends of described trip shaft (2) are provided with cross-sectional plane, described swing arm is provided with leg-of-mutton jack on (1), the outside dimension of the internal diameter size of described jack and described plug (2.1) matches, described two swing arms (1) are plugged in respectively the two ends of trip shaft (2), described plug is provided with slot in (2.1), the plug (6) that two external diameters are greater than slot internal diameter press-fits in the slot at trip shaft (2) two ends by interference fit.
3. floating type cab front suspension swinging arm assembly according to claim 1, it is characterized in that: described swing arm (1) below is provided with the projection (5) of outwardly convex, the top of described lower support of shock absorber (11) is provided with nylon spacer (12), be compressed to before allowed minimum length at shock absorber (10), projection (5) contacts with nylon spacer (12), after driver's cab turnover puts in place, projection (5) contacts with nylon spacer (12).
4. according to the floating type cab front suspension swinging arm assembly described in claim 1 or 2 or 3, it is characterized in that: in the rubber block (4.3) in described front overhang back bush (4), clamp the metal sheet (4.4) that is fixed with circular arc.
5. according to the floating type cab front suspension swinging arm assembly described in claim 1 or 2 or 3, it is characterized in that: on described body skin (3.1), be provided with vertically opening I (3.4).
6. floating type cab front suspension swinging arm assembly according to claim 5, it is characterized in that: in the rubber coating (3.3) in described front overhang front lining (3), clamp the becket (3.5) that is fixed with annular arrangement, on described becket (3.5), be provided with vertically opening II (3.6).
7. floating type cab front suspension swinging arm assembly according to claim 1, is characterized in that: described front suspension swinging arm support (7) closes for sheet metal bending forms its three side sealing, its excess-three face opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806358.4U CN203651942U (en) | 2013-12-10 | 2013-12-10 | Floating front overhang swing arm assembly of cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806358.4U CN203651942U (en) | 2013-12-10 | 2013-12-10 | Floating front overhang swing arm assembly of cab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203651942U true CN203651942U (en) | 2014-06-18 |
Family
ID=50918362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320806358.4U Expired - Lifetime CN203651942U (en) | 2013-12-10 | 2013-12-10 | Floating front overhang swing arm assembly of cab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203651942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896283A (en) * | 2015-06-16 | 2015-09-09 | 宁波福尔达智能科技有限公司 | Lubricating grease adding structure for car storage box |
-
2013
- 2013-12-10 CN CN201320806358.4U patent/CN203651942U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896283A (en) * | 2015-06-16 | 2015-09-09 | 宁波福尔达智能科技有限公司 | Lubricating grease adding structure for car storage box |
| CN104896283B (en) * | 2015-06-16 | 2017-03-01 | 宁波福尔达智能科技有限公司 | Storage case for vehicle oil addition fat structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |