CN202131555U

CN202131555U - Casting type asphaltic mixture vertical mixer

Info

Publication number: CN202131555U
Application number: CN201120186952U
Authority: CN
Inventors: 吴晓东
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-06
Filing date: 2011-06-06
Publication date: 2012-02-01
Anticipated expiration: 2021-06-06

Abstract

The utility model relates to a casting type asphaltic mixture vertical mixer, which includes a machine frame, a motor, a first reducing mechanism, a second reducing mechanism, mixing shafts, mixing blades, a guiding screw rod, guiding nuts and an agitating pan, wherein the second reducing mechanism mainly includes a second reduction gearbox body, a main transmission gear, at least two driven gears and a second input shaft and a second output shaft; the main transmission gear is fixedly connected onto the second input shaft connected with an input shaft of the first reducing mechanism; the two driven gears are uniformly distributed in the circumferential direction of the main transmission gear, meshed with the main transmission gear, and fixedly connected onto the corresponding second output shaft; the second output shaft is hinged on the second reduction gearbox body; the second reduction gearbox body is hinged on the second input shaft; and the driven gears perform autorotation around the second output shaft and revolution around a driving wheel of the second input shaft simultaneously when the main transmission gear and the driven gears are meshed and rotate. The casting type asphaltic mixture vertical mixer has the advantages of uniform mixing, no dead angle, big capacity of the agitating pan and excellent sealing.

Description

Cast asphalt compound vertical mixer

Technical field

The utility model relates to the pitch process equipment, relates in particular to cast asphalt compound vertical mixer.

Background technology

Present domestic paving steel bridge deck is main with the bituminous epoxy concrete still, and the bituminous epoxy concrete is extensively approved with its good quality through the actual check that is open to traffic.But the cast asphalt compound was so that it was had was high temperature resistant, anti-aging, have nature trickling property under the high temperature, and the characteristics that viscosity is high are approved and are used widely in developed country.

Present domestic paving steel bridge deck is main with the bituminous epoxy concrete, and the bituminous epoxy concrete is because cost is high, and construction control is shortcoming such as difficulty comparatively, and domestic a lot of engineerings also want to seek a kind of replacement scheme of relatively economical always.Confirmed that with the cast-type scheme cast asphalt compound adopts the pure natural pitch of modified bitumen and U.S.'s Trinida lakebed to combine, and has the whipping temp height, viscosity is big, and flow model is big, and the tack coat that is fit to very much between steel bridge face and the supercrust uses.Along with the continuous construction of river bridge spanning the sea is striden by China, pouring type asphalt concrete also more and more receives in many ways and paying attention to as one of large-span steel box girder bridge floor paving scheme.But the cast asphalt making needs the cooperation of corresponding technology and equipment, and domestic a lot of engineerings also want to seek a kind of replacement scheme of relatively economical always.But with regard to mixing plant, the cast asphalt compound mixer of characteristic such as domestic not satisfy the whipping temp that scientific research and design mechanism uses high, and viscosity is big, and mixed capacity is big.

Bituminous mixture mixer shown in Figure 1 is present widely used a kind of type; This machine is passed to reducing gear 3 through shaft coupling 2 with the rotation of motor 1; Drive to through spring 4 by the output shaft of reducing gear 3 again and mix and stir blade 5, make blade 5 in autobiography, also do revolution around a center of rotation.Mix and stir that pot 8 places on the base 7 and liftable, so that reinforced, discharging or blade are to the differing heights status requirement of the stirring of compound in the pot.The stirring vane 5 of this mixer is the shape that is bent into approximate leaf with reinforcing bar; Stuck for preventing blade and stone; Be connected with spring 4 between blade and the rotating shaft; Viscosity is little for stirring, the little bituminous mixture of stirring resistance is suitable for for this structure, obviously is not all right but be used for stirring the cast asphalt compound.Because when reality stirred, blade 5 received the bigger stirring moment of resistance, make spring 4 towards the little center position distortion of moment, cause stirring vane to tilt to agitated kettle central authorities and stir, other place can't be stirred to, and causes stirring inhomogeneous; And stirring vane 5 receives the powerful viscosity resistance of cast asphalt compound, the damage that deforms easily, thereby the normal stirring of influence.In addition, the distribution form of this kind blade makes the stirring scope of blade little, causes the capacity that mixes and stirs pot limited.

Therefore the mixer of design adaptation cast asphalt mixture performance is to promote one of primary problem that solves of pouring type asphalt concrete.

Summary of the invention

The purpose of the utility model is to provide a kind of mixer that adapts to the cast asphalt compound, and this purpose is implemented by following technical proposals:

Said mixer; Comprise frame, upper mounting plate, lower platform, motor, first reducing gear, second reducing gear, shaft, paddle, agitated kettle, guide spiro rod and spigot nut, the said motor and first reducing gear are installed on the upper mounting plate, and the power shaft of first reducing gear, output shaft connect the power shaft of the motor output shaft and second reducing gear respectively; The output shaft of second reducing gear shaft that is in transmission connection; Agitated kettle is installed on the position of lower platform corresponding to shaft, and guide spiro rod is vertically placed, and it is hinged on the frame at two ends up and down; Spigot nut is rotatably connected in guide spiro rod, and is connected with upper mounting plate or lower platform; Wherein: said second reducing gear mainly is made up of second deceleration box, main drive gear, driven gear and second power shaft, second output shaft; Said main drive gear is fixedly connected on second power shaft; This power shaft is connected with the output shaft of said first reducing gear, and said driven gear has two at least, is distributed on making progress in week and meshing with main drive gear respectively of said main drive gear; Each driven gear is fixedly connected on the second corresponding output shaft; Each second output shaft is articulated in second deceleration box, and second deceleration box is articulated in second power shaft, when main drive gear and driven gear engagement rotation; Each driven gear also revolves round the sun around second power shaft through second deceleration box except that around the output shaft rotation of correspondence; Each second output shaft is connected with a shaft through corresponding eccentric block, and paddle is connected to be mixed on the axle.

The further design of said mixer is that each said eccentric block is in the position consistency that makes progress in week.

The further design of said mixer is, on said shaft, is provided with several said paddles, and each shaft paddle bottom is in same axial location; Except that said paddle bottom, having the paddle on two shafts at least is alternately in the axial direction.

The further design of said mixer is, is quadrangular with the paddle coupling part on the said shaft; Said paddle comprises axle sleeve and blade; Said axle sleeve is the rectangle sleeve pipe corresponding with said quadrangular; Blade is the rectangular sheet of a band right angle flanging; Blade pass is crossed said right angle flanging and is connected on the relative two sides of axle sleeve, and the axis of said blade plane and axle sleeve is angle, α=58～62 °; Said paddle is set on through said axle sleeve on the correspondence position of quadrangular of shaft, and is fixed in shaft by holding screw.

The further design of said mixer is, said agitated kettle comprise inner bag, be wrapped in the shell in the inner bag outside and place inner bag and shell between resistive heater and conduction oil, the limit, upper end of inner bag protrudes in the upper surface of shell.

The further design of said mixer is; Be provided with the pot circle in frame top position corresponding to said agitated kettle; When in said guide spiro rod rotation spigot nut drive agitated kettle being moved up, the lower surface of said pot circle is sealed on the said upper surface of agitated kettle shell.

The further design of said mixer is that said first reducing gear is a turbine and worm decelerator, and the power shaft of said first reducing gear is a worm shaft, and the output shaft of said first reducing gear is a worm-wheel shaft.

The utility model is provided with two planetary gears; And shaft is connected with planet wheel spindle through an eccentric block; Enlarge the circumferential stirring scope of the stirring vane on the shaft; Just in time suitable when in design, making stirring vane turn to outermost with the wall of inner container of agitated kettle, turn to when the most inboard basically center near agitated kettle; And with the stirring vane on two output shafts on axial location alternately, enlarged the axial stirring scope of stirring vane, make when stirring the dead angle can not occur, guarantee to stir full and uniform, can increase the capacity of agitated kettle thus greatly.The present invention is designed to the blade that stirs trapezoidal, and is inclined in shaft one side, can reduce to start and the resistance when stirring, and improves the rigidity of shaft and stirring vane relatively, prevents the distortion of shaft and stirring vane.The present invention is also through being provided with pot circle and limit, agitated kettle inner bag upper end being protruded in the upper surface of shell; Pot circle lower surface is sealed on the shell upper surface of agitated kettle; Agitated kettle is suitable for reading to be sealed, and does not have outside air to get into when guaranteeing to stir, and guarantees to stir the quality of material.

Description of drawings

Fig. 1 is the structural representation of existing asphalt mixer

Fig. 2 is the structural representation of the utility model asphalt mixer.

Fig. 3 is the sectional view of the B-B position of asphalt mixer shown in Figure 1.

Fig. 4 is the structural representation of shaft and stirring vane.

Fig. 5 is the structural representation of stirring vane.

Fig. 6 is another kind of main drive gear and driven gear meshing transmission structure sketch map.

Among the figure, 1-motor, 2-shaft coupling, 3-reducing gear, 4-spring, 5-blade, 7-base; The 8-pot, 10-first reducing gear, 11-worm gear 11a-worm-wheel shaft, 12-worm screw, 12a-worm shaft, 13-motor; 14 first deceleration box, 14a bearing, 20-second reducing gear, 21-second deceleration box, 23-main drive gear, 23a-second power shaft; The 31-shaft, 32-paddle, 32a-blade, 32b-axle sleeve, 32c-flanging, 40-agitated kettle; 42-stirs circle, 50-frame, 51-guide spiro rod, 52-spigot nut, 53-upper mounting plate, 54-lower platform.

The specific embodiment

Map 2, the mixer of the utility model mainly are made up of frame 50, motor 13, first reducing gear 10, second reducing gear 20, shaft 31, stirring vane 32, guide spiro rod 51, spigot nut 52 and agitated kettle 40.It is on the upper mounting plate 53 that the motor 13 and first reducing gear 10 are installed.First reducing gear 10 is a turbine and worm decelerator, and worm gear 11, worm screw 12 place in first deceleration box 14, and the power shaft of this reducing gear is worm shaft 12a, and worm shaft is connected through the shaft coupling (not shown) with the output shaft of motor 13.Worm screw 12 and worm gear 11 engagements; Worm-wheel shaft 11a is the output shaft of first reducing gear; It is supported in first deceleration box 14 through the pair of bearings 14a in first deceleration box 14; And stretch out downwards outside first deceleration box 14, be connected with power shaft in second reducing gear 20 through shaft coupling 15, promptly with second reducing gear in the second power shaft 23a that is connected of main drive gear 23 centers connect.Or worm-wheel shaft 11a reaches in second reducing gear 20 to the lower edge, as the power shaft of second reducing gear, and main drive gear 23 is installed on this axle.Second reducing gear 20 mainly is made up of second deceleration box 21, main drive gear 23, two driven gears 24.Two driven gears 24 are fixedly connected on respectively on the output shaft of second reducing gear, 20 correspondences, promptly on the two second output shaft 24a.Second deceleration box 21 is articulated on the second power shaft 23a or the extended worm shaft 11a through bearing 21a.Two driven gears 24 place main drive gear 23 1 sides respectively and are engaged with.Two output shaft 24a are articulated in second reduction box through the bearing 21a of correspondence respectively, and this axially downwardly extending goes out outside the casing 20, connect with a corresponding shaft 31 through eccentric block 34 respectively.The eccentric block 34 of corresponding shaft 31 of two connections and output shaft 24a is in the position consistency that makes progress in week; Thereby make the position consistency on circumferentially of the corresponding relatively output shaft 24a of paddle 32; See also Fig. 3, for example the pairing L1 of the two paddles circumferential position identical with L2, M1 and M2, N1 and N2.Connect 3 paddles 32 on two shafts 31 respectively, each shaft paddle bottom is in same axial location; Except that said paddle bottom, remaining paddle is alternately in the axial direction.

Map 4, Fig. 5, stirring vane 32 are distributed on the shaft 31, are quadrangular with stirring vane 32 coupling parts on the shaft 31.Stirring vane 32 mainly is made up of axle sleeve 32b and blade 32a; Axle sleeve 32b be with shaft 31 on the corresponding rectangle sleeve pipe of quadrangular; Blade 32a is rectangle plane and is provided with right angle flanging 32c in a side; Blade 32a is fixed on the relative two sides of axle sleeve 32b through the welding of this right angle flanging or with screw, and the axis of blade plane and axle sleeve is 58～62 °, and this angle of most preferred embodiment is 60 °.Stirring vane 32 is set on through said axle sleeve 32b on the correspondence position of quadrangular of shaft 31, and is fixed on the shaft 31 through holding screw 17.

Map 2, Fig. 3 again, guide spiro rod 51 is vertically placed, and it is hinged on the frame 50 at two ends up and down, and spigot nut 52 is connected upper mounting plate and is rotatably connected in guide spiro rod 51.Agitated kettle 40 is installed on the lower platform 54, and corresponding to the position of paddle 32, the range of movement of paddle is included in the agitated kettle 40.Agitated kettle 40 mainly by the inboard insulation layer 44 of flat inner bag 43, the shell 42 that is wrapped in the inner bag outside, shell and place inner bag and insulation layer between conduction oil and resistive heater (not shown).The limit, upper end of inner bag 43 protrudes in the upper surface of shell 42.Be provided with pot circle 41 at agitated kettle 40 corresponding to the frame top position; When guide spiro rod 51 rotates; Spigot nut 52 moves down stirring circle 241 through driving upper mounting plate 53, and during to agitated kettle 40 tops, pot circle 41 lower surfaces can be sealed on the upper surface of agitated kettle shell.Equally, as make spigot nut 52 be connected lower platform 54, agitated kettle 40 can move upward under the drive of nut 52 (dotted portion among Fig. 1), and pot circle 41 lower surfaces are sealed on the upper surface of agitated kettle shell.

When the mixer work of the utility model is started working; To guide spiro rod 51 be rotated through corresponding motor and transmission mechanism (not shown) at present; Spigot nut 52 moves to upper through upper mounting plate 53 drive stirring circles 41, this moment is reinforced in agitated kettle 40, and feeding in raw material finishes makes reverse relatively 51 rotations of guide spiro rod through the controlling organization (not shown); Spigot nut 52 makes a pot circle 41 move to the next through driving upper mounting plate; Pot circle 41 lower surfaces can be sealed on the upper surface of agitated kettle shell, and agitated kettle is suitable for reading to be sealed, and guarantee not have outside air to get into.13 work of this rear motor, motor 13 drives main drive gears 23 through turbine and worm decelerator 10 and shaft coupling 15 and rotates, two driven gears 24 respectively through with the engagement of main drive gear 23, the axle 24a around self rotates separately.Because second deceleration box 21 is fixing and be articulated in a 23a, thereby make two driven gears 24, and drive casing 21 rotate around axle 23a around axle 23a revolution.Two driven gears, 24 time rotationals drive shaft 31 motions through eccentric block 34.The size of main drive gear 23 and driven gear 24 and eccentric block 34 in the present embodiment, can satisfy following requirement: shaft 31 is when turning to outermost, and the points outside of stirring vane is just in time suitable with the wall of inner container of agitated kettle; When shaft 31 turned to inner side, the points outside of stirring vane was in the center of agitated kettle 40 basically; And shaft 31 bottom surface of mixing blade and agitated kettle 40 inner bags bottom is suitable.See also Fig. 3 and Fig. 2, the stirring of stirring vane can cover the inner bag of whole agitated kettle like this, and basic assurance the dead angle can not occur when stirring, and stirs full and uniform.

Driven gear also can design more than two, and is for example as shown in Figure 6, is designed to 3; The axially-aligned of paddle on its shaft 31, two is identical, one with these two alternately; Identical with two kinds of axially-aligned shown in Fig. 1, other structure is same as the previously described embodiments, no longer superfluous chatting.

Claims

1. cast asphalt compound vertical mixer comprises frame, upper mounting plate, lower platform, motor, first reducing gear, second reducing gear, shaft, paddle, agitated kettle, guide spiro rod and spigot nut, and the said motor and first reducing gear are installed on the upper mounting plate; The power shaft of first reducing gear, output shaft connect the power shaft of the motor output shaft and second reducing gear respectively, the output shaft of second reducing gear shaft that is in transmission connection, and agitated kettle is installed on the position of lower platform corresponding to shaft; Guide spiro rod is vertically placed; It is hinged on the frame at two ends up and down, and spigot nut is rotatably connected in guide spiro rod, and is connected with upper mounting plate or lower platform; It is characterized in that; Said second reducing gear mainly is made up of second deceleration box, main drive gear, driven gear and second power shaft, second output shaft, and said main drive gear is fixedly connected on second power shaft, and this power shaft is connected with the output shaft of said first reducing gear; Said driven gear has two at least; The week that is distributed on said main drive gear upwards and respectively meshes with main drive gear, and each driven gear is fixedly connected on the second corresponding output shaft, and each second output shaft is articulated in second deceleration box; Second deceleration box is articulated in second power shaft; When main drive gear and driven gear engagement rotation, each driven gear also revolves round the sun around second power shaft through second deceleration box except that around the output shaft rotation of correspondence; Each second output shaft is connected with a shaft through corresponding eccentric block, and paddle is connected to be mixed on the axle.

2. cast asphalt compound vertical mixer according to claim 1 is characterized in that each said eccentric block is in the position consistency that makes progress in week.

3. cast asphalt compound vertical mixer according to claim 1 is characterized in that on said shaft, being provided with several said paddles, and each shaft paddle bottom is in same axial location; Except that said paddle bottom, having the paddle on two shafts at least is alternately in the axial direction.

4. according to claim 1 or 3 described cast asphalt compound vertical mixers, it is characterized in that on the said shaft with the paddle coupling part being quadrangular; Said paddle comprises axle sleeve and blade; Said axle sleeve is the rectangle sleeve pipe corresponding with said quadrangular; Blade is the rectangular sheet of a band right angle flanging; Blade pass is crossed said right angle flanging and is connected on the relative two sides of axle sleeve, and the axis of said blade plane and axle sleeve is angle, α=58～62 °; Said paddle is set on through said axle sleeve on the correspondence position of quadrangular of shaft, and is fixed in shaft by holding screw.

5. according to claim 1 or 3 described cast asphalt compound vertical mixers; It is characterized in that said agitated kettle comprise inner bag, be wrapped in the inboard insulation layer of shell, the shell in the inner bag outside and place inner bag and insulation layer between heating resistor and conduction oil, and the limit, upper end of inner bag protrudes in the upper surface of shell.

6. cast asphalt compound vertical mixer according to claim 5; It is characterized in that being provided with pot in the frame top position corresponding to said agitated kettle encloses; When spigot nut drive upper mounting plate or lower platform being moved in said guide spiro rod rotation; Said pot circle and agitated kettle are pressed close to each other, and the lower surface of pot circle is sealed on the said upper surface of agitated kettle shell.

7. according to claim 1 or 3 described cast asphalt compound vertical mixers; It is characterized in that said first reducing gear is a turbine and worm decelerator; The power shaft of said first reducing gear is a worm shaft, and the output shaft of said first reducing gear is a worm-wheel shaft.