CN102441941B - Single horizontal shaft vibration mixer - Google Patents
Single horizontal shaft vibration mixer Download PDFInfo
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- CN102441941B CN102441941B CN201110350969.8A CN201110350969A CN102441941B CN 102441941 B CN102441941 B CN 102441941B CN 201110350969 A CN201110350969 A CN 201110350969A CN 102441941 B CN102441941 B CN 102441941B
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Abstract
The invention discloses a single-horizontal-shaft vibration stirrer which comprises a rack, a stirring transmission device, a vibration stirring device, a stirring driving motor and a vibration driving motor, wherein the stirring driving motor and the vibration driving motor are arranged on one side of the vibration stirring device or are respectively arranged on two sides of the vibration stirring device; the vibration stirring device comprises a stirring drum fixedly installed on the frame and a stirring mechanism horizontally arranged at the rotation center of the stirring drum, wherein the stirring mechanism comprises a hollow stirring shaft installed in the stirring drum through a bearing and a plurality of stirring units fixedly installed on the outer wall of the hollow stirring shaft. The invention has simple structure, reasonable design and convenient use and operation, can ensure that the concrete mixture is uniform macroscopically and microscopically in a short time, and improves the low-efficiency stirring area near the stirring shaft.
Description
Technical field
The present invention relates to a kind of mixer, especially relate to a kind of single horizontal-shaft vibration mixer being mainly applicable to concrete-agitating.
Background technology
Mixer is the capital equipment of concrete-agitating, and its function is that the material preparing is mixed evenly and the mixture conforming to quality requirements, and can be divided into self-dumping mixer and the large class of forced mixer two according to operation principle.Self-dumping mixer is to utilize agitating device cut apart and promote mixing an interior material, until the frictional force between material and agitating device is while being less than the component of the gravity that makes supports for material down-sliding, material falls by deadweight, thereby the mutual alignment that makes each several part material constantly redistributes and is is evenly mixed and stirred, the wearing and tearing of this mixer power consumption and consumable accessory are all less, but it is violent to mix and stir insufficient strength, generally only suitable stirring plasticity and semi plastic concrete.Forced mixer be by the agitating device of rotation to material the pressure such as shear, push, roll and dish out mix and stir effect, make material obtain uniform stirring in violent relative motion, this mixer is strong to the effect of material, mixing quality is good, productivity ratio is high, but wearing and tearing power consumption is large, and aggregate size is had to stricter restriction, is applicable to stir dry concrete and lightweight aggregate concrete.To sum up, these two kinds of mixers have his own strong points technically and economically, and China both has, but have the latter to replace the former trend.
Although self-dumping mixer and forced mixer all can make compound reach homogeneous in macroscopic view in the short period of time, become small cement group but can still can find that there is under the microscope 10%～30% cement granules adhesive aggregation, on microcosmic, do not reach homogeneous.Due to the hydration of cement, (hydration refers to reacting of material and water generation chemical combination, claim again aquation, refer generally to molecule or hydration of ion) only carry out on the surface of cement granules, if cement granules agglomerate, the area of hydration reduces, the aquation product that makes concrete have intensity reduces, and therefore this agglomeration of cement is having a strong impact on the raising of concrete workability and intensity.
At present, in concrete-agitating work, single horizontal shaft blender is a kind of forced mixer often using, and it exists equally compound and is difficult to reach the uniform problem of microcosmic, and in the time that agitating device is worked, the core speed of mixing cylinder near circle is low, and barrel place speed is high.In order not make concrete materials generation segregation phenomenon, the maximum line velocity of stirring vane must be restricted, generally in 1.8m/s, therefore, one end at mixing arm near shaft, because linear velocity is relatively low, the stirring action of material is very faint, just form mixing inefficient zone, even stirred dead band.The working time that this has not only delayed complete machine, has left hidden danger of quality, and in poor efficiency district, the mobile property of compound is poor, and easy and shaft adheres to, and then produces seize phenomenon.Along with mixer is constantly to large scale development, mix a capacity increasing, mix the radius size of cylinder much larger than the height of stirring vane, like this in the time that mixer is worked, stirring vane can only stir near mixing one deck material of an inwall, and material between stirring vane and central shaft cannot well be stirred.Therefore, the mixing inefficient zone problem that large capacity is mixed cylinder is particularly outstanding, and mixing inefficient zone is the inherent shortcoming of conventional forced mixer structure, and it has had a strong impact on operation quality and the operating efficiency of mixing plant.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of single horizontal-shaft vibration mixer is provided, it is simple in structure, reasonable in design and use easy to operate, can make concrete mixture within a short period of time and all reach even in macroscopic view and on microcosmic, and then and improved near the inefficient district of stirring shaft, improved concrete mixing quality and efficiency.
For achieving the above object, the technical solution used in the present invention is: a kind of single horizontal-shaft vibration mixer, it is characterized in that: comprise frame, stir transmission device, vibrating driver, vibration stirring device, stir drive motors and vibratory drive motor, the both sides of described vibration stirring device are all located at a side of described vibration stirring device or described stirring drive motors and vibratory drive motor and are located at respectively by described stirring drive motors and vibratory drive motor, described stirring drive motors is connected with vibration stirring device and is driven vibration stirring device to stir by described stirring transmission device, described vibratory drive motor is connected with vibration stirring device by vibrating driver and drives vibration stirring device to produce vibration, described stirring drive motors and vibratory drive motor are all fixed in frame, described vibration stirring device comprises the mixing drum that is fixedly mounted in frame and is horizontally set on mixing drum centre of gyration position and material is promoted continuously to the rabbling mechanism of circulation stirring, described rabbling mechanism comprises by bearing and is arranged on the hollow shaft in mixing drum and is fixedly mounted on successively from left to right the multiple agitating units on hollow shaft outer wall, the two ends of described hollow shaft pass respectively the two ends, left and right of mixing drum, are provided with two ends and pass respectively the vibrating shaft at two ends, mixing drum left and right in described hollow shaft.
Above-mentioned one list horizontal-shaft vibration mixer, it is characterized in that: described stirring transmission device comprises that decelerator, minor sprocket, hinge wheel, first stir sleeve and second and stir sleeve, described the first stirring sleeve and second stirs sleeve and is separately positioned on the two ends, left and right of mixing drum and is fixedly connected with two ends, hollow shaft left and right, and the two ends of described vibrating shaft pass respectively the first stirring sleeve and second and stir sleeve; The power shaft of described decelerator is connected with the output shaft of drive motors, described minor sprocket is fixedly mounted on the output shaft of decelerator, described hinge wheel is fixedly mounted on the first stirring sleeve or second and stirs on the outer wall of sleeve, and described hinge wheel and minor sprocket are by the transmission of chain shape chaining.
Above-mentioned one list horizontal-shaft vibration mixer, it is characterized in that: described vibrating driver comprises shaft coupling, the first eccentric shaft bearing sleeve, the first vibration bearing, the second eccentric shaft bearing sleeve and the second vibration bearing, the output shaft of described vibratory drive motor is connected with one end of vibrating shaft by shaft coupling, described the first eccentric shaft bearing sleeve and the first vibration bearing are all arranged in the first stirring sleeve, described the first eccentric shaft bearing sleeve is socketed on vibrating shaft, described the first vibration bearing is arranged on the first capacity eccentric bearing and puts, described the first vibration bearing and first stirs sleeve and is fixedly connected with, described the second eccentric shaft bearing sleeve and the second vibration bearing are all arranged in the second stirring sleeve, described the second eccentric shaft bearing sleeve is socketed on vibrating shaft, described the second vibration bearing is arranged on the second capacity eccentric bearing and puts, and described the second vibration bearing and second stirs sleeve and is fixedly connected with.
Above-mentioned one list horizontal-shaft vibration mixer, it is characterized in that: the offset between described first axis of eccentric shaft bearing sleeve and the axis of vibrating shaft is e1, offset between described second axis of eccentric shaft bearing sleeve and the axis of vibrating shaft is e2, described e1 and e2 are the both-end constant amplitude bias of e1=e2, or are the both-end luffing bias of e1 ≠ e2.
Above-mentioned one list horizontal-shaft vibration mixer, is characterized in that: the described first arranged outside that stirs sleeve has the first eccentric block being fixedly connected on vibrating shaft, and the described second arranged outside that stirs sleeve has the second eccentric block being fixedly connected on vibrating shaft.
Above-mentioned one list horizontal-shaft vibration mixer, it is characterized in that: the left of described the first eccentric block is provided with the first spring bearing being arranged on vibrating shaft, right-hand second spring bearing being arranged on vibrating shaft that is provided with of described the second eccentric block, described the first spring bearing and the second spring bearing are all by being fixed in frame in supporting bearing base.
Above-mentioned one list horizontal-shaft vibration mixer, it is characterized in that: described the first eccentric shaft bearing sleeve and the second eccentric shaft bearing sleeve are symmetricly set on the both sides of mixing drum, described the first stirring sleeve and the second stirring sleeve are symmetricly set on the both sides of mixing drum, described the first eccentric block and the second eccentric block are symmetricly set on the both sides of mixing drum, and described the first spring bearing and the second spring bearing are symmetricly set on the both sides of mixing drum.
Above-mentioned one list horizontal-shaft vibration mixer, it is characterized in that: described agitating unit comprises the mixing arm that is fixedly connected on hollow shaft outer wall and be arranged on mixing arm end and realize the stirring vane of material shuttling movement in mixing drum, it is that the axial established angle of stirring vane is 30 °～45 ° that the stirring face of described stirring vane and its are installed angle between mixing arm.
Above-mentioned one list horizontal-shaft vibration mixer, it is characterized in that: be installed on the hollow shaft leftmost side agitating unit stirring vane by by stirring material push to mixing drum central authorities continue stir the first stirring vane, be installed on the hollow shaft rightmost side agitating unit stirring vane by by stirrings material push to mixing drum central authorities continue stirring the second stirring vane.
Above-mentioned one list horizontal-shaft vibration mixer, it is characterized in that: described the first spring bearing and the second spring bearing are all arranged on vibrating shaft by vibratory drive end internal bearing sleeve, the first eccentric block and the second eccentric block are all fixedly mounted on vibrating shaft by eccentric block retainer plate.
The present invention compared with prior art has the following advantages:
1, simple in structure, reasonable in design and use easy to operate, this oscillating mixer has increased effect of vibration on the basis of stirring, when work, vibration stirring device not only has action of forced stirring effect to compound, and has effect of vibration, thereby makes cement granules in chatter state, destroy cement agglomerates, increased the area of cement aquation, thereby the aquation product that makes concrete have intensity increases, improved the concrete strength after sclerosis.Simultaneously under effect of vibration, between mixture particle, viscosity and internal friction reduce, movement velocity increases, hydrated cementitious accelerates, and to the compound in stirring near inefficient district (shaft), its each component circulating with diffusion profile on microcosmic also all obtained strengthening, thereby stirs inefficient district for eliminating, and realizes Quick uniform and stirs the very favourable condition of having created.Therefore, single horizontal-shaft vibration mixer energy makes concrete mixture and all reach evenly in macroscopic view and on microcosmic within a short period of time, has improved the inefficient district of stirring of machine, has improved concrete mixing quality and stirring efficiency.
2, the present invention adopts the mode as vibration source such as shaft, mixing arm, stirring vane and vibrating shaft, when work, stirring vane vibrates while stirring, effectively vibration area is large, the near distance of Vibration propagation and being evenly distributed, less oscillation intensity just can make the compound in mixing drum be subject to enough effect of vibrations, and therefore low to the performance requirement of bearing, bearing life easily ensures.
3, vibrating shaft of the present invention has carried out dynamic balancing design by mechanics principle, therefore while work, only that bias is arranged on shaft and mixing arm and the stirring vane generation vibration on vibrating shaft, vibration is directly passed to compound, and the vibrating shaft of capable of satisfying dynamic equilibrium condition itself does not vibrate, eliminate preferably the harmful effect of vibration to other parts of machine.
Below by drawings and Examples, the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is the operation principle schematic diagram of the first detailed description of the invention of the present invention.
Fig. 2 is the operation principle schematic diagram of the second detailed description of the invention of the present invention.
Fig. 3 is the top view of the first detailed description of the invention of the present invention.
Fig. 4 is the front view of the first detailed description of the invention of the present invention.
Fig. 5 is the annexation schematic diagram of vibrating shaft and other parts in the first detailed description of the invention of the present invention.
Description of reference numerals:
Detailed description of the invention
Embodiment 1
As Fig. 1, Fig. 3, shown in Fig. 4 and Fig. 5, a kind of single horizontal-shaft vibration mixer, comprise frame 4, stir transmission device, vibrating driver, vibration stirring device, stir drive motors 1 and vibratory drive motor 2, the both sides of described vibration stirring device are all located at a side of described vibration stirring device or described stirring drive motors 1 and vibratory drive motor 2 and are located at respectively by described stirring drive motors 1 and vibratory drive motor 2, described stirring drive motors 1 is connected with vibration stirring device and is driven vibration stirring device to stir by described stirring transmission device, described vibratory drive motor 2 is connected with vibration stirring device by vibrating driver and drives vibration stirring device to produce vibration, described stirring drive motors 1 and vibratory drive motor 2 are all fixed in frame 4, described vibration stirring device comprises the mixing drum 3 being fixedly mounted in frame 4 and is horizontally set on mixing drum 3 centre of gyration positions and material is promoted continuously to the rabbling mechanism of circulation stirring, described rabbling mechanism comprises by bearing and is arranged on the hollow shaft 5 in mixing drum 3 and is fixedly mounted on successively from left to right the multiple agitating units on hollow shaft 5 outer walls, the two ends of described hollow shaft 5 pass respectively the two ends, left and right of mixing drum 3, are provided with two ends and pass respectively the vibrating shaft 14 at mixing drum 3 two ends, left and right in described hollow shaft 5.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, described stirring transmission device comprises that decelerator 9, minor sprocket 10, hinge wheel 11, the first stirring sleeve 12-1 and second stir sleeve 12-2, described the first stirring sleeve 12-1 and second stirs sleeve 12-2 and is separately positioned on the two ends, left and right of mixing drum 3 and is fixedly connected with hollow shaft 5 two ends, left and right, and the two ends of described vibrating shaft 14 pass respectively the first stirring sleeve 12-1 and second and stir sleeve 12-2; The power shaft of described decelerator 9 is connected with the output shaft of drive motors 1, described minor sprocket 10 is fixedly mounted on the output shaft of decelerator 9, described hinge wheel 11 is fixedly mounted on the outer wall of the second stirring sleeve 12-2, and described hinge wheel 11 and minor sprocket 10 form chain transmission by chain 22.
As Fig. 1, Fig. 3, shown in Fig. 4 and Fig. 5, described vibrating driver comprises shaft coupling 13, the first eccentric shaft bearing sleeve 18, the first vibration bearing 17-1, the second eccentric shaft bearing sleeve 19 and the second vibration bearing 17-2, the output shaft of described vibratory drive motor 2 is connected with the right-hand member of vibrating shaft 14 by shaft coupling 13, described the first eccentric shaft bearing sleeve 18 and the first vibration bearing 17-1 are all arranged in the first stirring sleeve 12-1, described the first eccentric shaft bearing sleeve 18 is socketed on vibrating shaft 14, described the first vibration bearing 17-1 is arranged on the first eccentric shaft bearing sleeve 18, described the first vibration bearing 17-1 and first stirs sleeve 12-1 and is fixedly connected with, described the second eccentric shaft bearing sleeve 19 and the second vibration bearing 17-2 are all arranged in the second stirring sleeve 12-2, described the second eccentric shaft bearing sleeve 19 is socketed on vibrating shaft 14, described the second vibration bearing 17-2 is arranged on the second eccentric shaft bearing sleeve 19, and described the second vibration bearing 17-2 and second stirs sleeve 12-2 and is fixedly connected with.
As shown in Figure 1, offset between the axis of the axis of described the first eccentric shaft bearing sleeve 18 and vibrating shaft 14 is e1, offset between the axis of the axis of described the second eccentric shaft bearing sleeve 19 and vibrating shaft 14 is e2, described e1 and e2 are the both-end constant amplitude bias of e1=e2, or are the both-end luffing bias of e1 ≠ e2.Due to the axis disalignment of axis and the vibrating shaft 14 of the first eccentric shaft bearing sleeve 18 and the second eccentric shaft bearing sleeve 19, therefore the hollow shaft 5 that is connected to the stirring sleeve 12-1 of first on the first eccentric shaft bearing sleeve 18 by the first vibration bearing 17-1 and be fixedly connected with the first stirring sleeve 12-1 is all installed with respect to vibrating shaft 14 is eccentric, and be connected to by the second vibration bearing 17-2 that second on the second eccentric shaft bearing sleeve 19 stirs sleeve 12-2 and the hollow shaft 5 that is fixedly connected with the second stirring sleeve 12-2 is all installed with respect to vibrating shaft 14 is eccentric, and this offset can be designed to the both-end constant amplitude bias of e1=e2 according to actual needs, also can be designed to the both-end luffing bias of e1 ≠ e2, wherein, the both-end luffing bias of e1 ≠ e2 comprises e1=0, e2 ≠ 0, or e1 ≠ 0, the single-ended eccentric form of e2=0.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, the described first arranged outside that stirs sleeve 12-1 has the first eccentric block 20 being fixedly connected on vibrating shaft 14, and the described second arranged outside that stirs sleeve 12-2 has the second eccentric block 21 being fixedly connected on vibrating shaft 14; The first eccentric block 20 and the second eccentric block 21 stir sleeve 12-1, second for balance first and stir eccentric inertia force and the inertia couple producing such as sleeve 12-2, hollow shaft 5, mixing arm 6 and stirring vane 7, to guarantee that vibrating shaft 14 realizes dynamic balancing.In the time of real work, the first eccentric block 20 and the second eccentric block 21 can be in vibrating shaft 14 High Rotation Speeds, balance first stirs sleeve 12-1, second and stirs eccentric inertia force and the inertia couple producing such as sleeve 12-2, hollow shaft 5, mixing arm 6 and stirring vane 7, and the vibrating shaft 14 of capable of satisfying dynamic equilibrium condition does not vibrate itself, therefore eliminated preferably the harmful effect of vibration to other parts on machine, thus reliability and the service life of having improved machine.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, the left of described the first eccentric block 20 is provided with the first spring bearing 15-1 being arranged on vibrating shaft 14, the right-hand second spring bearing 15-2 being arranged on vibrating shaft 14 that is provided with of described the second eccentric block 21, described the first spring bearing 15-1 and the second spring bearing 15-2 are all by 16 being fixed in frame 4 in supporting bearing base.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, described the first eccentric shaft bearing sleeve 18 and the second eccentric shaft bearing sleeve 19 are symmetricly set on the both sides of mixing drum 3, described the first stirring sleeve 12-1 and the second stirring sleeve 12-2 are symmetricly set on the both sides of mixing drum 3, described the first eccentric block 20 and the second eccentric block 21 are symmetricly set on the both sides of mixing drum 3, and described the first spring bearing 15-1 and the second spring bearing 15-2 are symmetricly set on the both sides of mixing drum 3.
As shown in figures 1 and 3, described agitating unit comprises the mixing arm 6 being fixedly connected on hollow shaft 5 outer walls and is arranged on mixing arm 6 ends and realizes the stirring vane 7 of material at mixing drum 3 interior shuttling movements, the stirring face of described stirring vane 7 and its angle between the mixing arm of installing 6 be that the axial established angle of stirring vane is 30 °～45 °.In the present embodiment, between hollow shaft 5 and mixing arm 6 and between mixing arm 6 and stirring vane 7, be all bolted to connection.
As shown in Figure 3, be installed on hollow shaft 5 leftmost sides agitating unit stirring vane by by stirring material push to mixing drum 3 central authorities continue stir the first stirring vane 7-1, be installed on hollow shaft 5 rightmost sides agitating unit stirring vane by by stirrings material push to mixing drum 3 central authorities continue stirring the second stirring vane 7-2.
As shown in Figure 5, described the first spring bearing 15-1 and the second spring bearing 15-2 are all arranged on vibrating shaft 14 by vibratory drive end internal bearing sleeve 15-3, and the first eccentric block 20 and the second eccentric block 21 are all fixedly mounted on vibrating shaft 14 by eccentric block retainer plate 23.
In the present embodiment, between described hollow shaft 5 and the side plate at mixing drum 3 two ends, be provided with shaft end seal part 8; The described first outer end of stirring sleeve 12-1 and the second stirring sleeve 12-2 is provided with vibration sleeve end cap 12-3, wherein, stir sleeve 12-1 near the first vibration sleeve end cap 12-3 that stirs sleeve 12-1 by bolt and first and be fixedly connected with, be all fixedly connected with hinge wheel 11 with vibration sleeve end cap 12-3 by bolt near the second vibration sleeve end cap 12-3 that stirs sleeve 12-2.
Embodiment 2
As different from Example 1: described stirring drive motors 1 and vibratory drive motor 2 are located at respectively the both sides of described vibration stirring device, described hinge wheel 11 is fixedly mounted on the outer wall of the first stirring sleeve 12-1, and the output shaft of described vibratory drive motor 2 is connected (as shown in Figure 2) by shaft coupling 13 with the left end of vibrating shaft 14.
The course of work of the present invention is: after interior each raw material input mixing drum 3 of concrete composition, start simultaneously and stir drive motors 1 and vibratory drive motor 2 or stir drive motors delay start vibratory drive motor 2 after more than 1 seconds starting, stir drive motors 1 output and stir power, drive minor sprocket 10 to rotate through decelerator 9, drive hinge wheel 11 to rotate with the stirring sleeve 12 being fixedly connected with it by chain transmission again, thereby drive the mixing arm 6 of hollow shaft 5 and upper installation thereof and stirring vane 7 to rotate by stirring sleeve 12; Owing to forming the angle of 30 °～45 ° between stirring vane 7 plane of living in and hollow shaft 5, and stirring vane 7 is arranged according to specific orientation, the first stirring vane 7-1 and the second stirring vane 7-2 are the blade that returns of material being pushed to mixing drum central authorities, remaining stirring vane pushes stir material to end, thereby realizes material at the interior shuttling movement of mixing drum 3.
Meanwhile, vibratory drive motor 2 output vibration power, directly drive vibrating shaft 14 to rotate by shaft coupling 13, the vibrating shaft 14 of High Rotation Speed forces eccentric the first stirring sleeve 12-1 mounted thereto, the second stirring sleeve 12-2, hollow shaft 5 and mixing arm 6 and stirring vane 7 to produce vibration; Because vibrating shaft 14 has carried out dynamic balancing design (being installed with the first eccentric block 20 and the second eccentric block 21 on vibrating shaft 14) by mechanics principle, therefore in the time that vibrating shaft 14 rotates, be only that bias is arranged on that first on vibrating shaft 14 stirs that sleeve 12-1, second stirs that sleeve 12-2, hollow shaft 5 and mixing arm 6 and stirring vane 7 rotate with vibrating shaft 14 and forced vibration, vibration is directly delivered on compound.
So, under the action of forced stirring of vibration stirring device and the acting in conjunction of vibration, concrete mixture in mixing drum 3 is fully stirred, after concrete mixture in mixing drum 3 reaches evenly, close simultaneously and stir drive motors 1 and vibratory drive motor 2 or first close vibratory drive motor 2 in former seconds of closing stirring drive motors 1, rotate mixing drum 3 around vibrating shaft 14, in the time that mixing drum 3 is tumbled certain position, the compound being stirred just can freely draw off under self gravitation.
Single horizontal-shaft vibration mixer of the present invention, vibration stirring device not only has action of forced stirring effect to compound, and there is an effect of vibration, thereby can destroy cement agglomerates, increase the area of cement aquation, thereby the aquation product that makes concrete have intensity increases, improve the concrete strength after sclerosis.Simultaneously under effect of vibration, between mixture particle, viscosity and internal friction reduce, movement velocity increases, particularly to the compound in stirring near inefficient district (hollow shaft 5), its each component circulating with diffusion profile on microcosmic also all obtained strengthening, thereby stir inefficient district for eliminating, realize Quick uniform and stir the very favourable condition of having created.Therefore, single horizontal-shaft vibration mixer energy makes concrete mixture and all reach evenly in macroscopic view and on microcosmic within a short period of time, and improves the inefficient district of stirring of machine, thereby has improved concrete mixing quality and stirring efficiency.
Be below at concrete match ratio when test method is all identical in the situation that, do the contrast test of list horizontal-shaft vibration mixer of the present invention and common single horizontal shaft blender, wherein, concrete design strength is C20 (20MPa), different stirring conditions are: stir according to design mixture proportion vibration (1), mixing time is 38s (dry mixing 8s, wet-mixing 30s); (2) reduce cement consumption 10%, when all the other component consumptions are constant, vibration is stirred, and mixing time is 38s (dry mixing 8s, wet-mixing 30s); (3) close vibrating motor (by traditional action of forced stirring, being equivalent to common single horizontal shaft blender), mixing time is 68s (dry mixing 8s, wet-mixing 60s), and its comparative analysis result is as shown in table 1.
The comparative test result contrast table of the single horizontal-shaft vibration mixer of table 1 and common single horizontal shaft blender
As can be seen from Table 1, adopt list horizontal-shaft vibration mixer of the present invention, concrete mean compressive strength significantly improves, the standard deviation of compression strength significantly declines, illustrate that vibration stirring has effectively improved the microcosmic homogeneity of mixing concrete, can not reach the defect of homogeneous on microcosmic while eliminating Liao You poor efficiency district phenomenon.Compared with common single horizontal shaft blender, adopt single horizontal-shaft vibration mixer, in the time that Concrete Design match ratio is constant, concrete strength improves more than 10.95%, i.e. (21.58-19.45)/19.45=10.95%; In the time that concrete strength is substantially constant, approximately can save cement 10%, and mixing time shortens greatly, improve stirring efficiency.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation of above embodiment being done according to the technology of the present invention essence, all still belongs in the protection domain of technical solution of the present invention.
Claims (6)
1. a single horizontal-shaft vibration mixer, is characterized in that: comprise frame (4), stir transmission and equipment, vibration transmission and equipment and vibration stirring device, stirring transmission and equipment mainly comprises stirring drive motors (1), shaft joint (9), minor sprocket (10), chain (22), hinge wheel (11) and stirs sleeve (12-2,12-1), spring bearing (17-2,17-1), hollow shaft (5), shaft end seal (8), mixing arm (6), stirring vane (7), the eccentric shaft bearing sleeve (18 that install at vibration transmission and the main involving vibrations drive motors of equipment (2), shaft joint (13), eccentric vibrating axle (14) and two ends, 19), spring bearing (15-2,15-1), two groups of external eccentric blocks (21,20), the eccentric shaft bearing sleeve (18 that install at the main involving vibrations axle of vibration stirring device (14) and two ends, 19), spring bearing (17-2,17-1), stir sleeve (12-2,12-1), hollow shaft (5), shaft end seal (8), mixing arm (6), stirring vane (7), the both sides of described vibration stirring device are all located at a side of described vibration stirring device or described stirring drive motors (1) and vibratory drive motor (2) and are located at respectively by described stirring drive motors (1) and vibratory drive motor (2), described stirring drive motors (1) is connected by described vibrating driver with described vibratory drive motor (2) by described stirring transmission device and drives vibration stirring device to vibrate stirring, and described stirring drive motors (1) and vibratory drive motor (2) are all fixed in frame (4), described vibration stirring device comprises by shaft end seal (8) and is fixedly mounted on the mixing drum (3) in frame (4) and is horizontally set on mixing drum (3) centre of gyration position and material is applied to the vibration oscillating mixer structure of promotion circulation stirring on one side continuously, described oscillating mixer structure involving vibrations axle (14), be arranged on the hollow shaft (5) in mixing drum (3) and be fixedly mounted on successively from left to right multiple mixing arms (6) on hollow shaft (5) outer wall and mixing arm (6) is gone up all adjustable stirring vanes (7) of the angle of installation and direction by the first vibration bearing (17-1) and the second vibration bearing (17-2), the two ends of described hollow shaft (5) pass respectively the two ends, left and right of mixing drum (3), in described hollow shaft (5), be provided with the vibrating shaft (14) that two ends pass respectively mixing drum (3) two ends, left and right, described stirring transmission device comprises that decelerator (9), minor sprocket (10), hinge wheel (11), first stir sleeve (12-1) and second and stir sleeve (12-2), described the first stirring sleeve (12-1) and second stirs sleeve (12-2) and is separately positioned on the two ends, left and right of mixing drum (3) and is fixedly connected with hollow shaft (5) two ends, left and right, and the two ends of described vibrating shaft (14) pass respectively the first stirring sleeve (12-1) and second and stir sleeve (12-2), the power shaft of described decelerator (9) is connected with the output shaft of drive motors (1), described minor sprocket (10) is fixedly mounted on the output shaft of decelerator (9), described hinge wheel (11) is fixedly mounted on the first stirring sleeve (12-1) or second and stirs on the outer wall of sleeve (12-2), and described hinge wheel (11) and minor sprocket (10) form chain transmission by chain (22), described vibrating driver comprises shaft coupling (13), the first eccentric shaft bearing sleeve (18), the first vibration bearing (17-1), the second eccentric shaft bearing sleeve (19) and the second vibration bearing (17-2), the output shaft of described vibratory drive motor (2) is connected with one end of vibrating shaft (14) by shaft coupling (13), described the first eccentric shaft bearing sleeve (18) and the first vibration bearing (17-1) are all arranged in the first stirring sleeve (12-1), described the first eccentric shaft bearing sleeve (18) is socketed on vibrating shaft (14), described the first vibration bearing (17-1) is arranged on the first eccentric shaft bearing sleeve (18) and above stirs in the inner chamber of sleeve (12-1) with first, it is upper that described the second eccentric shaft bearing sleeve (19) is socketed in vibrating shaft (14), and described the second vibration bearing (17-2) is socketed in the second eccentric shaft bearing sleeve (19) and above stirs in sleeve (12-2) inner chamber with second, offset between the axis of the axis of described the first eccentric shaft bearing sleeve (18) and vibrating shaft (14) is e1, offset between the axis of the axis of described the second eccentric shaft bearing sleeve (19) and vibrating shaft (14) is e2, described e1 and e2 are the both-end constant amplitude bias of e1=e2, or are the both-end luffing bias of e1 ≠ e2, the described first arranged outside that stirs sleeve (12-1) has the first eccentric block (20) being fixedly connected on vibrating shaft (14), and the eccentric direction of described the first eccentric block (20) is contrary with the eccentric direction of the first eccentric shaft bearing sleeve (18) of the upper socket of vibrating shaft (14), the described second arranged outside that stirs sleeve (12-2) has the second eccentric block (21) being fixedly connected on vibrating shaft (14), and the eccentric direction of described the second eccentric block (21) is contrary with the eccentric direction of the second eccentric shaft bearing sleeve (19) of the upper socket of vibrating shaft (14).
2. according to the single horizontal-shaft vibration mixer of one claimed in claim 1, it is characterized in that: the left of described the first eccentric block (20) is provided with the first spring bearing (15-1) being arranged on vibrating shaft (14), right-hand second spring bearing (15-2) being arranged on vibrating shaft (14) that is provided with of described the second eccentric block (21), described the first spring bearing (15-1) and the second spring bearing (15-2) are all fixed in frame (4) by (16) in supporting bearing base.
3. according to the single horizontal-shaft vibration mixer of one claimed in claim 2, it is characterized in that: described the first eccentric shaft bearing sleeve (18) and the second eccentric shaft bearing sleeve (19) are symmetricly set on the both sides of mixing drum (3), described the first stirring sleeve (12-1) and the second stirring sleeve (12-2) are symmetricly set on the both sides of mixing drum (3), described the first eccentric block (20) and the second eccentric block (21) are symmetricly set on the both sides of mixing drum (3), described the first spring bearing (15-1) and the second spring bearing (15-2) are symmetricly set on the both sides of mixing drum (3).
4. according to the single horizontal-shaft vibration mixer of one claimed in claim 1, it is characterized in that: described agitating unit comprises vibrating shaft 14 in hollow shaft 5, hollow shaft 5, is fixedly connected on the mixing arm (6) on hollow shaft (5) outer wall and is arranged on mixing arm (6) end and realize the stirring vane (7) of material shuttling movement in mixing drum (3), the stirring face of described stirring vane (7) and its angle between the mixing arm of installing (6) be that the axial established angle of stirring vane is 30 °～45 °.
5. according to the single horizontal-shaft vibration mixer of one claimed in claim 4, it is characterized in that: axial installation direction and the angle of setting of the upper stirring vane (7) of installing of mixing arm (6) of described hollow shaft (5) are adjustable; The stirring vane of the agitating unit of the leftmost side by by stirring material push to mixing drum (3) central authorities continue stir the first stirring vane (7-1), be installed on hollow shaft (5) rightmost side agitating unit stirring vane for by stirring material push to mixing drum (3) central authorities continue stirring the second stirring vane (7-2); Or first stirring vane (7-1) stirred material is pushed to mixing drum right side from left side with the equidirectional installation of other stirring vanes except the second stirring vane (7-2), the second stirring vane (7-2) that is oppositely installed on hollow shaft (5) rightmost side with the first stirring vane (7-1) makes material return to the lasting stirring of formation.
6. according to the single horizontal-shaft vibration mixer of one claimed in claim 2, it is characterized in that: described the first spring bearing (15-1) and the second spring bearing (15-2) are all arranged on vibrating shaft (14) by vibratory drive end internal bearing sleeve (15-3), the first eccentric block (20) and the second eccentric block (21) are all fixedly mounted on vibrating shaft (14) by eccentric block retainer plate (23), the eccentric direction of described the first eccentric block (20) and the second eccentric block (21) is contrary with the eccentric direction of the second eccentric shaft bearing sleeve (19) with the first eccentric shaft bearing sleeve (18) of the upper socket of vibrating shaft (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110350969.8A CN102441941B (en) | 2011-11-09 | 2011-11-09 | Single horizontal shaft vibration mixer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110350969.8A CN102441941B (en) | 2011-11-09 | 2011-11-09 | Single horizontal shaft vibration mixer |
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| CN102441941A CN102441941A (en) | 2012-05-09 |
| CN102441941B true CN102441941B (en) | 2014-08-20 |
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| CN110900831A (en) * | 2019-12-02 | 2020-03-24 | 长安大学 | Vertical shaft planetary vibration type concrete mixer |
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