Transfer vehicle transmission shaft device
Technical field
The present invention is mainly concerned with the transfer vehicle field, refers in particular to a kind of transfer vehicle transmission shaft device.
Background technique
At present, asphalt mixture transfer vehicle is used more and more in the pitch paving operation.In the prior art, when asphalt mixture transfer vehicle paves pitch work in transhipment, being all the transmission system stirring shaft device of transmission shaft and the sealing configuration of secondary discharging driven shaft device middle (center) bearing mostly is single mechanical seal, have with iron-clad sealing, what have uses skeleton oil.As shown in Figure 7, the stirring shaft device of transfer vehicle comprises two sections screw axis 11, bearing 3, left-handed blade 6, dextrorotation blade 12, middle bearing bracket 9 and sprocket wheel 10, left-handed blade 6, dextrorotation blade 12 and sprocket wheel 10 all are installed on the screw axis 11, one end of two sections screw axis 11 is positioned on the casing 14 by 3 supportings of middle bearing bracket 9 and bearing, and the outside of bearing 3 is provided with that bearing is logical to cover 7; The other end of screw axis 11 then is positioned on the casing 14 by bearing support 2 and bearing 3 supportings, and the outside of bearing 3 is provided with bearing cap 1.As shown in Figure 8, the secondary discharging driven shaft device of transfer vehicle comprises secondary driven shaft 11, bearing 3 and is installed in sprocket wheel 10 on the secondary driven shaft 11 that the two ends of this secondary driven shaft 11 are positioned on the casing 14 by bearing support 2 and bearing 3 supportings respectively.Referring to shown in Figure 9, adopt the sealing structure of iron-clad seal ring 4 between bearing 3 and the bearing cap 1; Referring to shown in Figure 10, bearing 3 and bearing are logical to adopt backbone sealing ring 5 to seal between cover 7.The shortcoming of this single sealing configuration just is: because asphalt mixture transfer vehicle material bin, two helical stir shaft devices of feed bin and secondary discharging driven shaft device all are enclosed in the casing 14, transfer vehicle is in transmission asphalt process, get stuck easily in the casing 14, push, produce particle.Particle is in the continuous operation of transfer vehicle worst hot case, and along with the growth of operating time, often the single bearing 3 that enters into because of bearing 3 sealing effects goes, thereby influence the normal use of bearing 3, therefore bearing 3 produces early stage the damage, often needs to change and maintenance, influences the construction of asphalt pavement.
Summary of the invention
The technical problem to be solved in the present invention just is: at the technical problem of prior art existence, the invention provides a kind of employing combined sealing structure, avoid asphalt to enter into bearing thus and caused damage of bearings, thereby can prolong the working life of bearing and Sealing, improve the transfer vehicle transmission shaft device of transfer vehicle global reliability.
In order to solve the problems of the technologies described above, the solution that the present invention proposes is: a kind of transfer vehicle transmission shaft device, it comprises driven shaft, bearing and bearing support more than two or two, driven shaft is fixed on the casing by bearing and bearing block support, it is characterized in that: described bearing support is the double sealed bearing seat, is provided with first sealer with assembled between bearing and the double sealed bearing seat; Link to each other by middle bearing bracket between the adjacent driven shaft and be supported on the casing, the outside of bearing is provided with the logical lid of bearing; The logical lid of described bearing is the logical lid of double sealed bearing, is provided with second sealer with assembled between the logical lid of bearing and double sealed bearing.
Described first sealer with assembled comprises labyrinth seal ring and backbone sealing ring, offers the joint corresponding with labyrinth seal ring and backbone sealing ring on the double sealed bearing seat.
Described first sealer with assembled comprises labyrinth seal ring and iron-clad seal ring, offers on the double sealed bearing seat and labyrinth seal ring and the corresponding joint of iron-clad seal ring.
Described first sealer with assembled comprises backbone sealing ring and iron-clad seal ring, offers on the double sealed bearing seat and backbone sealing ring and the corresponding joint of iron-clad seal ring.
Described second sealer with assembled comprises labyrinth seal ring and backbone sealing ring, and logical the covering of double sealed bearing offers the joint corresponding with labyrinth seal ring and backbone sealing ring.
Described second sealer with assembled comprises labyrinth seal ring and iron-clad seal ring, and logical the covering of double sealed bearing offers and labyrinth seal ring and the corresponding joint of iron-clad seal ring.
Described second sealer with assembled comprises backbone sealing ring and iron-clad seal ring, and logical the covering of double sealed bearing offers and backbone sealing ring and the corresponding joint of iron-clad seal ring.
Compared with prior art, advantage of the present invention just is: transfer vehicle transmission shaft device of the present invention, adopt combined sealing structure, therefore overcome the problem that easily enters bearing at long-term using process medium pitch mixture, thereby prolonged the working life of bearing and Sealing, improve the reliability of transfer vehicle car load, reduced replacing and maintenance expenses, can produce tangible economic benefit and social benefit.In sum, purpose of the present invention is exactly to make the bearing in the transfer vehicle transmission shaft device have the double-sealing combined effect.Because double sealing structure is adopted in transfer vehicle transmission shaft device middle (center) bearing sealing, increased sealing together, therefore can reduce or eliminate the particle that asphalt produces and enter into bearing in course of conveying, thereby can guarantee the normal lubricated and running of bearing.Hence one can see that, and bearing can not damage in early days, and just energy continuous operation of transfer vehicle reaches the asphalt pavement effect of construction continuously.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is the local structure for amplifying schematic representation at I place among Fig. 1 and Fig. 2;
Fig. 4 is the local structure for amplifying schematic representation at II place among Fig. 1;
Fig. 5 is the structural representation of labyrinth seal ring among the present invention;
Fig. 6 is the structural representation of the logical lid of double sealed bearing among the present invention;
Fig. 7 is the structural representation of the stirring shaft device of transfer vehicle in the prior art;
Fig. 8 is the structural representation of the secondary discharging driven shaft device of transfer vehicle in the prior art;
Fig. 9 is the local structure for amplifying schematic representation at III place among Fig. 7 and Fig. 8;
Figure 10 is the local structure for amplifying schematic representation at IV place among Fig. 7.
Marginal data
1, bearing cap 2, bearing support
3, bearing 4, iron-clad seal ring
5, backbone sealing ring 6, left-handed blade
7, bearing logical cover 8, labyrinth seal ring
9, middle bearing bracket 10, sprocket wheel
11, secondary driven shaft 12, dextrorotation blade
13, screw axis 14, casing
15, double sealed bearing seat 16, the logical lid of double sealed bearing
Embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
Transfer vehicle transmission shaft device of the present invention comprises driven shaft, bearing 3 and the double sealed bearing seat 15 more than one or, driven shaft is fixed on the casing 14 by bearing 3 and 15 supportings of double sealed bearing seat, is provided with first sealer with assembled between bearing 3 and the double sealed bearing seat 15.This first sealer with assembled comprises labyrinth seal ring 8 and backbone sealing ring 5, offers the joint corresponding with labyrinth seal ring 8 and backbone sealing ring 5 on the double sealed bearing seat 15; Perhaps, this first sealer with assembled comprises labyrinth seal ring 8 and iron-clad seal ring 4, offers the joint corresponding with labyrinth seal ring 8 and iron-clad seal ring 4 on the double sealed bearing seat 15; Perhaps, this first sealer with assembled comprises backbone sealing ring 5 and iron-clad seal ring 4, offers the joint corresponding with backbone sealing ring 5 and iron-clad seal ring 4 on the double sealed bearing seat 15.When driveline comprises many driven shafts, link to each other by middle bearing bracket 9 between each driven shaft and be supported on the casing 14, the outside of bearing 3 is provided with that double sealed bearing is logical to cover 16.Bearing 3 and double sealed bearing are logical to be provided with second sealer with assembled between covering 16, this second sealer with assembled comprises labyrinth seal ring 8 and backbone sealing ring 5, and double sealed bearing is logical to be covered and offer the joint (referring to Fig. 5 and shown in Figure 6) corresponding with labyrinth seal ring 8 and backbone sealing ring 5 on 16; Perhaps, this second sealer with assembled comprises labyrinth seal ring 8 and iron-clad seal ring 4, and double sealed bearing is logical to be covered and offer the joint corresponding with labyrinth seal ring 8 and iron-clad seal ring 4 on 16; Perhaps, this second sealer with assembled comprises backbone sealing ring 5 and iron-clad seal ring 4, and double sealed bearing is logical to be covered and offer the joint corresponding with backbone sealing ring 5 and iron-clad seal ring 4 on 16.
Transfer vehicle transmission shaft device of the present invention comprises the various driven shaft structures in the transfer vehicle, is that example describes with several frequently seen transfer vehicle transmission shaft device below.
Embodiment 1: as shown in Figure 1, the stirring shaft device of transfer vehicle in the present embodiment, it comprises two screw axis 13, bearing 3, double sealed bearing seat 15 and middle bearing bracket 9 as driven shaft, an adjacent end of two screw axis 13 links to each other with middle bearing bracket 9 by bearing 3 and is supported on the casing 14, the outside of bearing 3 is provided with that double sealed bearing is logical to cover 16, an other end of screw axis 13 then passes through bearing 3 and double sealed bearing seat 16 positioning supports on casing 14, and the end of bearing 3 is provided with bearing cap 1.The sprocket wheel 10 that is equiped with left-handed blade 6, the dextrorotation blade 12 that is used for stirring material on the screw axis 13 and is used for linking to each other with driving shaft.Referring to shown in Figure 3, adopt the fabricated structure sealing of iron-clad seal ring 4 and backbone sealing ring 5 between bearing 3 and the double sealed bearing seat 15, then be provided with the joint corresponding on the double sealed bearing seat 15 with iron-clad seal ring 4 and backbone sealing ring 5.Referring to shown in Figure 4, bearing 3 and double sealed bearing be logical cover the fabricated structure sealing of adopting backbone sealing ring 5 and labyrinth seal ring 8 between 16, and double sealed bearing leads to cover and then is provided with the joint corresponding with backbone sealing ring 5 and labyrinth seal ring 8 on 16.Wherein, labyrinth seal ring 8 is fixed on the screw axis 13 and the logical very little labyrinth gap of 16 formation of covering of double sealed bearing realizes sealing, fills with lubricating grease earlier in the gap.Backbone sealing ring 5 internal diameters are littler than the diameter of axle, and certain magnitude of interference is arranged.After installing on the screw axis 13, the contractile force of the pressure of its cutting edge and self-tightening spring produces certain power of radially holding tightly to seal shaft, and the blocking leakage-gap reaches sealing purpose.After two kinds of seal combination, can reduce or eliminate the particle that asphalt produces and enter into bearing 3 in course of conveying.Because during preceding one seal failure, working again in back sealing together, had only when two seals all lost efficacy, the pitch particle just can enter into bearing 3 and go, just can influence the normal operation of bearing 3, bearing 3 just might damage, so bearing 3 time of damaging gets and prolongs.In sum, purpose of the present invention is exactly to make the bearing 3 in the transfer vehicle transmission shaft device have the double-sealing combined effect.Because double sealing structures are adopted in transfer vehicle transmission shaft device middle (center) bearing 3 sealing, increased sealing together, therefore can reduce or eliminate the particle that asphalt produces and enter into bearing 3 in course of conveying, thereby can guarantee the normal lubricated and running of bearing 3.Hence one can see that, and bearing 3 can not damage in early days, and just energy continuous operation of transfer vehicle reaches the asphalt pavement effect of construction continuously.
Embodiment 2: as shown in Figure 2, the secondary discharging driven shaft device of transfer vehicle in the present embodiment, it comprises secondary driven shaft 11, bearing 3 and double sealed bearing seat 15 as driven shaft, secondary driven shaft 11, is equiped with on the secondary driven shaft 11 and is used for the sprocket wheel 10 that links to each other with driving shaft on casing 14 by bearing 3 and double sealed bearing seat 15 positioning supports.Referring to shown in Figure 3, adopt the fabricated structure sealing of iron-clad seal ring 4 and backbone sealing ring 5 between bearing 3 and the double sealed bearing seat 15, then be provided with the joint corresponding on the double sealed bearing seat 15 with iron-clad seal ring 4 and backbone sealing ring 5.Labyrinth seal ring 8 is fixed on the secondary driven shaft 11 and the logical very little labyrinth gap of 16 formation of covering of double sealed bearing realizes sealing, fills with lubricating grease earlier in the gap.Backbone sealing ring 5 internal diameters are littler than the diameter of axle, and certain magnitude of interference is arranged.After installing on the secondary driven shaft 11, the contractile force of the pressure of its cutting edge and self-tightening spring produces certain power of radially holding tightly to seal shaft, and the blocking leakage-gap reaches sealing purpose.After two kinds of seal combination, can reduce or eliminate the particle that asphalt produces and enter into bearing 3 in course of conveying.Because during preceding one seal failure, working again in back sealing together, had only when two seals all lost efficacy, the pitch particle just can enter into bearing 3 and go, just can influence the normal operation of bearing 3, bearing 3 just might damage, so bearing 3 time of damaging gets and prolongs.In sum, purpose of the present invention is exactly to make the bearing 3 in the transfer vehicle transmission shaft device have the double-sealing combined effect.Because double sealing structures are adopted in transfer vehicle transmission shaft device middle (center) bearing 3 sealing, increased sealing together, therefore can reduce or eliminate the particle that asphalt produces and enter into bearing 3 in course of conveying, thereby can guarantee the normal lubricated and running of bearing 3.Hence one can see that, and bearing 3 can not damage in early days, and just energy continuous operation of transfer vehicle reaches the asphalt pavement effect of construction continuously.
Structure of the present invention is not merely limited to for above-mentioned limited several embodiments, combined seal structure can be for combining in labyrinth seal ring 8, backbone sealing ring 5 and the iron-clad seal ring 4 between any two mutually, and the combination collocation mode can be diversified.