CN104149574B - Rear lift shaft assembly - Google Patents
Rear lift shaft assembly Download PDFInfo
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- CN104149574B CN104149574B CN201410352662.5A CN201410352662A CN104149574B CN 104149574 B CN104149574 B CN 104149574B CN 201410352662 A CN201410352662 A CN 201410352662A CN 104149574 B CN104149574 B CN 104149574B
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- wheel hub
- lift shaft
- thrust
- pole seat
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Abstract
The invention discloses a kind of rear lift shaft assembly, comprise lift shaft central siphon assembly, wheel limit assembly and plate disc brake; Lift shaft central siphon assembly comprises a pipe axle, and a spindle nose is respectively established at the two ends of pipe axle, spindle nose is provided with the wheel limit assembly matched with it; Outer wall in the middle of pipe axle is welded with the thrust pole seat assembly for installed thrust ram seat and airbag lift connecting panel; Thrust pole seat assembly monosymmetric is provided with two and is connected with pipe axle outer wall and undersetting for installing leaf spring, respectively establishes a symmetrical and braking flange for assembling plate disc brake at the two ends of central siphon.Compact conformation of the present invention, adopts non-maintaining hub-bearing unit, and the life-span is long, lightweight; Coupling plate disc brake, the features such as deceleration and stopping performance is good, brake noise is little, insensitivity is good, installation and maintenance are convenient; Thrust pole seat and undersetting are welded on central siphon, and integral structure is reliable, overall from heavy and light, the feature such as simple and compact for structure, installation and maintenance are convenient.
Description
Technical field
The present invention relates to auto parts and components field, particularly relate to the rear lift shaft assembly of a kind of goods carrying vehicle.
Background technology
Along with the needs of social development, domestic highway goods carrying vehicle requires more and more higher to car load use cost, fuel economy, also more and more payes attention to for problems such as car load overload simultaneously.Under satisfy regulatory requirement, load more goods and non-overloading to realize highway goods carrying vehicle, under no-load condition, realize higher fuel economy simultaneously, generally adopt lift shaft to address this problem abroad.Current domestic highway goods carrying vehicle also develops in this aspect.In addition, domestic lift shaft generally adopts tapered roller bearing, life-span is low, bearing capacity is not high, there is the shortcomings such as hub weight is heavier simultaneously, add that domestic current lift bridge is mainly also in the mechanical lifting stage, air suspension lift shaft is also in ground zero or small lot trial assembly stage, the separately design of lift shaft bont and thrust pole seat, amount of parts is many, reliability is lower, simultaneously current domestic goods carrying vehicle generally adopts drum brake mechanism, the shortcoming such as there is at the bottom of brake efficiency, insensitivity is poor, service life is short.
Summary of the invention
As far as possible technical matters to be solved by this invention reduces car load deadweight under the prerequisite ensureing highway goods carrying vehicle cargo capacity, lift shaft mentioned simultaneously, reduce resistance to motion, realize higher fuel economy under no-load condition.
To achieve these goals, the technical solution adopted in the present invention is as follows:
Lift shaft assembly after a kind of, comprises lift shaft central siphon assembly, wheel limit assembly and plate disc brake; Described lift shaft central siphon assembly comprises a pipe axle, and a spindle nose is respectively established at the two ends of pipe axle, described spindle nose is provided with the wheel limit assembly matched with it; Outer wall in the middle of described pipe axle is welded with the thrust pole seat assembly for installed thrust ram seat and airbag lift connecting panel; Thrust pole seat assembly monosymmetric is provided with two and is connected with pipe axle outer wall and undersetting for installing leaf spring, respectively establishes a symmetrical and braking flange for assembling plate disc brake at the two ends of central siphon.
Described thrust pole seat assembly is welded by thrust pole seat left and right plate, thrust pole seat front and rear panel, thrust pole seat upper plate and two pieces of airbag lift connecting panels be arranged on front side of thrust pole seat header board.
Described wheel limit assembly comprises Hub assembly, jam nut, thrust washer and wheel hub end housing, described Hub assembly comprises bearing unit, wheel hub and brake disc, described bearing unit is pressed into wheel hub in an interference fit, bolt is through in the tapped bore be fastened on after wheel hub on brake disc flange face, described Hub assembly centre bearer unit and spindle nose adopt small―gap suture to coordinate, Hub assembly, thrust washer are successively through spindle nose, then with certain screw-down torque, jam nut is locked on spindle nose, realizes the installation location of Hub assembly; Wheel hub end housing is bolted on Hub assembly.
Wheel hub and bearing unit be ensure that between wheel hub and bearing unit without end float misalignment by interference fit; By the coupling mechanism force of jam nut, bearing unit is locked on spindle nose simultaneously.
For preventing wheel hub from outwards loosening further, inside described wheel hub, devising positive stop lug boss near bearing unit outer ring place, inside wheel hub, increasing spacer ring simultaneously, can prevent wheel hub from inwardly loosening by wheel hub end housing and spacer ring like this.
Described plate disc brake, is arranged on described drg on rear lift shaft assembly by bolt and braking flange.
Beneficial effect of the present invention:
With the present invention with the use of goods carrying vehicle, mentioning this lift shaft by being attached thereto the suspension elevating gear connect time unloaded, car load deadhead operation resistance can be reduced like this, reduce fuel oil consumption; By suspension elevating gear, lift shaft is fallen during loading, play carrying effect.Can realize ensureing that car load conduct oneself with dignity gentlier compared with other goods carrying vehicles under the prerequisite of load-carrying capacity like this, lade is more, has higher fuel economy and in-use performance.
In addition, compact conformation of the present invention, compared with prior art, adopts non-maintaining hub-bearing unit, and the life-span is long, lightweight; Coupling plate disc brake, the features such as deceleration and stopping performance is good, brake noise is little, insensitivity is good, installation and maintenance are convenient; Thrust pole seat and undersetting are welded on central siphon, and integral structure is reliable, overall from heavy and light, the feature such as simple and compact for structure, installation and maintenance are convenient.
Accompanying drawing explanation
Fig. 1 is lift shaft assembly structure schematic diagram after the present invention;
Fig. 2 is the part-structure enlarged drawing of Fig. 1;
Fig. 3 is lift shaft central siphon assembly structure schematic diagram of the present invention;
Fig. 4 is thrust pole seat assembly front view;
Fig. 5 is thrust pole seat assembly left view;
Fig. 6 is thrust pole seat assembly birds-eye view;
In figure: 1 wheel hub, 2 bearing units, 3 wheel hub end housings, 4 jam nuts, 5 thrust washers, 6 spacer ring groups, 7 brake discs, 8 plate disc brakies, 9 compressed air brake cylinders, 10 thrust pole seat assemblies, 11 pipe axles, 12 undersettings, 13 braking flange, 14 spindle noses, 15 air-bag support mounting holes, 16 thrust pole seat bracket mounting face, 17 positive stop lug boss.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
Lift shaft assembly after a kind of, comprises lift shaft central siphon assembly, wheel limit assembly and plate disc brake; Described lift shaft central siphon assembly comprises a pipe axle 11, and a spindle nose 14 is respectively established at the two ends of pipe axle 11, described spindle nose 14 is provided with the wheel limit assembly matched with it; Outer wall in the middle of described pipe axle 11 is welded with the thrust pole seat assembly 10 for installed thrust ram seat and airbag lift connecting panel; Thrust pole seat assembly monosymmetric is provided with two and is connected with pipe axle outer wall and undersetting 12 for installing leaf spring, respectively establishes a symmetrical and braking flange 13 for assembling plate disc brake at the two ends of central siphon.
Thrust pole seat assembly is welded by thrust pole seat left and right plate, thrust pole seat front and rear panel, thrust pole seat upper plate and two pieces of airbag lift connecting panels be arranged on front side of thrust pole seat header board; Thrust pole seat bracket mounting face 16 and air-bag support mounting hole 15 are as Figure 4-Figure 6.
Wheel limit assembly comprises Hub assembly, jam nut 4, thrust washer 5 and wheel hub end housing 3, described Hub assembly comprises bearing unit 2, wheel hub 1 and brake disc 7, as shown in Figure 1 in bearing unit 2 force fit wheel hub 1 endoporus, bearing unit is fixed on spindle nose 14 by jam nut 4 and thrust washer 5, by the spacing axial location realizing wheel hub 1 of bearing unit 2 and wheel hub 1 interference predetermincd tension and wheel hub positive stop lug boss and spacer ring group 6.Wheel hub end housing 3 is bolted on wheel hub 1 outer face, and brake disc 7 is bolted on wheel hub 1, and plate disc brake 8 is bolted on braking flange 13, and compressed air brake cylinder 9 is arranged on plate disc brake 8 by bolt.
Wheel hub axial direction play is ensured by the magnitude of interference of bearing unit and wheel hub on the one hand, outwards loosen for preventing wheel hub further, positive stop lug boss 17 is devised near bearing unit outer ring place inside described wheel hub, inside wheel hub, increase spacer ring simultaneously, can prevent wheel hub from inwardly loosening by wheel hub end housing and spacer ring like this.
After shown, lift shaft central siphon assembly 11 is weld assembly, circular shaft pipe 11 two ends are symmetrically welded spindle nose 14, middle part welding is for connecting the thrust pole seat assembly 10 of automotive track bar and installation air-bag support mounting hole, the undersetting 12 of bottom bilateral symmetry welding for connecting automotive suspension, spindle nose 14 is symmetrically welded and brakes flange 13.
Coupling plate disc brake can realize better deceleration and stopping performance and insensitivity, wheel limit adopts bearing unit that is non-maintaining and the more high life to improve lift shaft reliability further, thrust pole seat assembly is welded by thrust pole seat left and right plate, airbag lift connecting panel, thrust pole seat front and rear panel and thrust pole seat upper plate, such thrust pole seat support and air-bag support connecting bore can share a part, number of parts is less, structure is simpler, easy maintenance, from advantages such as heavy and lights.
Claims (5)
1. a lift shaft assembly after, is characterized in that: comprise lift shaft central siphon assembly, wheel limit assembly and plate disc brake; Described lift shaft central siphon assembly comprises a pipe axle, and a spindle nose is respectively established at the two ends of pipe axle, described spindle nose is provided with the wheel limit assembly matched with it; Outer wall in the middle of described pipe axle is welded with the thrust pole seat assembly for installed thrust ram seat and airbag lift connecting panel; Thrust pole seat assembly monosymmetric is provided with two and is connected with pipe axle outer wall and undersetting for installing leaf spring, respectively establishes a symmetrical and braking flange for assembling plate disc brake at the two ends of central siphon;
Described wheel limit assembly comprises Hub assembly, thrust washer and wheel hub end housing, described Hub assembly comprises bearing unit, wheel hub and brake disc, described bearing unit is pressed into wheel hub in an interference fit, bolt is through in the tapped bore be fastened on after wheel hub on brake disc flange face, described Hub assembly centre bearer unit and spindle nose adopt free-running fit, wheel hub, thrust washer are successively through spindle nose, then with the screw-down torque of setting, jam nut is locked on spindle nose, realizes the installation location of Hub assembly; Wheel hub end housing is bolted on Hub assembly.
2. rear lift shaft assembly as claimed in claim 1, is characterized in that: described thrust pole seat assembly is welded by thrust pole seat left and right plate, thrust pole seat front and rear panel, thrust pole seat upper plate and two pieces of airbag lift connecting panels be arranged on front side of thrust pole seat header board.
3. rear lift shaft assembly as claimed in claim 1, is characterized in that: the spacing magnitude of interference by bearing unit and wheel hub of wheel hub axial direction ensures; And devise near bearing unit outer ring place the positive stop lug boss preventing wheel hub from outwards loosening inside described wheel hub.
4. rear lift shaft assembly as claimed in claim 3, is characterized in that: inside wheel hub, also increase spacer ring, prevents wheel hub from inwardly loosening by wheel hub end housing and spacer ring.
5. rear lift shaft assembly as claimed in claim 1, is characterized in that: described plate disc brake, is arranged on rear lift shaft assembly by described plate disc brake by bolt and braking flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410352662.5A CN104149574B (en) | 2014-07-23 | 2014-07-23 | Rear lift shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410352662.5A CN104149574B (en) | 2014-07-23 | 2014-07-23 | Rear lift shaft assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104149574A CN104149574A (en) | 2014-11-19 |
| CN104149574B true CN104149574B (en) | 2016-03-30 |
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ID=51875276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410352662.5A Active CN104149574B (en) | 2014-07-23 | 2014-07-23 | Rear lift shaft assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN104149574B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109229204A (en) * | 2018-10-11 | 2019-01-18 | 中国重汽集团济南动力有限公司 | A kind of disc type promotion axle assembly of active steering |
| CN113306342B (en) * | 2021-05-22 | 2021-12-21 | 徐州逸腾机电科技有限公司 | Automobile supporting rear axle assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1002988A (en) * | 1973-09-13 | 1977-01-04 | London Concrete Machinery Co. (A Division Of Hodgson Machine And Equipme Nt Ltd.) | Mobile load bearing equipment |
| DE2513554A1 (en) * | 1975-03-26 | 1976-10-07 | Linde Ag | Dynamic brake for multi-axle lorry - has brake on lifting axle for reduced drag when empty |
| US4165884A (en) * | 1976-07-14 | 1979-08-28 | Allison Mfg. Inc. | Chain lift for auxiliary axle assembly |
| DE3929788A1 (en) * | 1989-09-07 | 1991-03-21 | Man Nutzfahrzeuge Ag | LIFTABLE DOUBLE AXLE UNIT |
| JP2002205524A (en) * | 2001-01-10 | 2002-07-23 | Showa Aircraft Ind Co Ltd | Axle system of freight vehicle |
| CN102501727A (en) * | 2011-12-22 | 2012-06-20 | 中国重汽集团济南动力有限公司 | Connection structure for brake disc for front steering axle of truck and hub bearing |
| CN202378639U (en) * | 2011-12-26 | 2012-08-15 | 中国重汽集团济南动力有限公司 | Middle charging and discharging front hub for front drive axle |
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2014
- 2014-07-23 CN CN201410352662.5A patent/CN104149574B/en active Active
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| Publication number | Publication date |
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| CN104149574A (en) | 2014-11-19 |
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